Merge remote-tracking branch 'qatar/master'
authorMichael Niedermayer <michaelni@gmx.at>
Tue, 2 Oct 2012 17:43:01 +0000 (19:43 +0200)
committerMichael Niedermayer <michaelni@gmx.at>
Tue, 2 Oct 2012 17:48:54 +0000 (19:48 +0200)
* qatar/master:
  ARM: fix Thumb PIC on Apple
  nut: add do {} while (0) to GET_V
  tiffenc: Check av_malloc() results.
  tiffenc: Simplify pixel format setup using AVPixFmtDescriptor.
  Use atexit() instead of defining a custom exit_program() interface.
  msvc: Fix detection of VFW & Avisynth required libs

Conflicts:
ffmpeg.c
ffmpeg_opt.c
ffplay.c
ffprobe.c
ffserver.c
libavcodec/tiffenc.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
12 files changed:
1  2 
cmdutils.c
cmdutils.h
configure
ffmpeg.c
ffmpeg_filter.c
ffmpeg_opt.c
ffplay.c
ffprobe.c
ffserver.c
libavcodec/tiffenc.c
libavformat/nutdec.c
libavutil/arm/asm.S

diff --cc cmdutils.c
@@@ -517,70 -435,6 +517,70 @@@ int opt_loglevel(void *optctx, const ch
      return 0;
  }
  
-         exit_program(1);
 +int opt_report(const char *opt)
 +{
 +    char filename[64];
 +    time_t now;
 +    struct tm *tm;
 +
 +    if (report_file) /* already opened */
 +        return 0;
 +    time(&now);
 +    tm = localtime(&now);
 +    snprintf(filename, sizeof(filename), "%s-%04d%02d%02d-%02d%02d%02d.log",
 +             program_name,
 +             tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
 +             tm->tm_hour, tm->tm_min, tm->tm_sec);
 +    report_file = fopen(filename, "w");
 +    if (!report_file) {
 +        av_log(NULL, AV_LOG_ERROR, "Failed to open report \"%s\": %s\n",
 +               filename, strerror(errno));
 +        return AVERROR(errno);
 +    }
 +    av_log_set_callback(log_callback_report);
 +    av_log(NULL, AV_LOG_INFO,
 +           "%s started on %04d-%02d-%02d at %02d:%02d:%02d\n"
 +           "Report written to \"%s\"\n",
 +           program_name,
 +           tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
 +           tm->tm_hour, tm->tm_min, tm->tm_sec,
 +           filename);
 +    av_log_set_level(FFMAX(av_log_get_level(), AV_LOG_VERBOSE));
 +    return 0;
 +}
 +
 +int opt_max_alloc(void *optctx, const char *opt, const char *arg)
 +{
 +    char *tail;
 +    size_t max;
 +
 +    max = strtol(arg, &tail, 10);
 +    if (*tail) {
 +        av_log(NULL, AV_LOG_FATAL, "Invalid max_alloc \"%s\".\n", arg);
++        exit(1);
 +    }
 +    av_max_alloc(max);
 +    return 0;
 +}
 +
 +int opt_cpuflags(void *optctx, const char *opt, const char *arg)
 +{
 +    int ret;
 +    unsigned flags = av_get_cpu_flags();
 +
 +    if ((ret = av_parse_cpu_caps(&flags, arg)) < 0)
 +        return ret;
 +
 +    av_force_cpu_flags(flags);
 +    return 0;
 +}
 +
 +int opt_codec_debug(void *optctx, const char *opt, const char *arg)
 +{
 +    av_log_set_level(AV_LOG_DEBUG);
 +    return opt_default(NULL, opt, arg);
 +}
 +
  int opt_timelimit(void *optctx, const char *opt, const char *arg)
  {
  #if HAVE_SETRLIMIT
@@@ -890,36 -723,6 +890,36 @@@ static const AVCodec *next_codec_for_id
      return NULL;
  }
  
-         exit_program(1);
 +static int compare_codec_desc(const void *a, const void *b)
 +{
 +    const AVCodecDescriptor * const *da = a;
 +    const AVCodecDescriptor * const *db = b;
 +
 +    return (*da)->type != (*db)->type ? (*da)->type - (*db)->type :
 +           strcmp((*da)->name, (*db)->name);
 +}
 +
 +static unsigned get_codecs_sorted(const AVCodecDescriptor ***rcodecs)
 +{
 +    const AVCodecDescriptor *desc = NULL;
 +    const AVCodecDescriptor **codecs;
 +    unsigned nb_codecs = 0, i = 0;
 +
 +    while ((desc = avcodec_descriptor_next(desc)))
 +        nb_codecs++;
 +    if (!(codecs = av_calloc(nb_codecs, sizeof(*codecs)))) {
 +        av_log(0, AV_LOG_ERROR, "Out of memory\n");
++        exit(1);
 +    }
 +    desc = NULL;
 +    while ((desc = avcodec_descriptor_next(desc)))
 +        codecs[i++] = desc;
 +    av_assert0(i == nb_codecs);
 +    qsort(codecs, nb_codecs, sizeof(*codecs), compare_codec_desc);
 +    *rcodecs = codecs;
 +    return nb_codecs;
 +}
 +
  static void print_codecs_for_id(enum AVCodecID id, int encoder)
  {
      const AVCodec *codec = NULL;
diff --cc cmdutils.h
Simple merge
diff --cc configure
Simple merge
diff --cc ffmpeg.c
index e0cd1e6,0000000..a9e5c54
mode 100644,000000..100644
--- /dev/null
+++ b/ffmpeg.c
@@@ -1,3181 -1,0 +1,3181 @@@
- void av_noreturn exit_program(int ret)
 +/*
 + * Copyright (c) 2000-2003 Fabrice Bellard
 + *
 + * This file is part of FFmpeg.
 + *
 + * FFmpeg is free software; you can redistribute it and/or
 + * modify it under the terms of the GNU Lesser General Public
 + * License as published by the Free Software Foundation; either
 + * version 2.1 of the License, or (at your option) any later version.
 + *
 + * FFmpeg is distributed in the hope that it will be useful,
 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 + * Lesser General Public License for more details.
 + *
 + * You should have received a copy of the GNU Lesser General Public
 + * License along with FFmpeg; if not, write to the Free Software
 + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 + */
 +
 +/**
 + * @file
 + * multimedia converter based on the FFmpeg libraries
 + */
 +
 +#include "config.h"
 +#include <ctype.h>
 +#include <string.h>
 +#include <math.h>
 +#include <stdlib.h>
 +#include <errno.h>
 +#include <limits.h>
 +#if HAVE_ISATTY
 +#if HAVE_IO_H
 +#include <io.h>
 +#endif
 +#if HAVE_UNISTD_H
 +#include <unistd.h>
 +#endif
 +#endif
 +#include "libavformat/avformat.h"
 +#include "libavdevice/avdevice.h"
 +#include "libswscale/swscale.h"
 +#include "libswresample/swresample.h"
 +#include "libavutil/opt.h"
 +#include "libavutil/audioconvert.h"
 +#include "libavutil/parseutils.h"
 +#include "libavutil/samplefmt.h"
 +#include "libavutil/colorspace.h"
 +#include "libavutil/fifo.h"
 +#include "libavutil/intreadwrite.h"
 +#include "libavutil/dict.h"
 +#include "libavutil/mathematics.h"
 +#include "libavutil/pixdesc.h"
 +#include "libavutil/avstring.h"
 +#include "libavutil/libm.h"
 +#include "libavutil/imgutils.h"
 +#include "libavutil/timestamp.h"
 +#include "libavutil/bprint.h"
 +#include "libavutil/time.h"
 +#include "libavformat/os_support.h"
 +
 +#include "libavformat/ffm.h" // not public API
 +
 +# include "libavfilter/avcodec.h"
 +# include "libavfilter/avfilter.h"
 +# include "libavfilter/avfiltergraph.h"
 +# include "libavfilter/buffersrc.h"
 +# include "libavfilter/buffersink.h"
 +
 +#if HAVE_SYS_RESOURCE_H
 +#include <sys/types.h>
 +#include <sys/resource.h>
 +#elif HAVE_GETPROCESSTIMES
 +#include <windows.h>
 +#endif
 +#if HAVE_GETPROCESSMEMORYINFO
 +#include <windows.h>
 +#include <psapi.h>
 +#endif
 +
 +#if HAVE_SYS_SELECT_H
 +#include <sys/select.h>
 +#endif
 +
 +#if HAVE_TERMIOS_H
 +#include <fcntl.h>
 +#include <sys/ioctl.h>
 +#include <sys/time.h>
 +#include <termios.h>
 +#elif HAVE_KBHIT
 +#include <conio.h>
 +#endif
 +
 +#if HAVE_PTHREADS
 +#include <pthread.h>
 +#endif
 +
 +#include <time.h>
 +
 +#include "ffmpeg.h"
 +#include "cmdutils.h"
 +
 +#include "libavutil/avassert.h"
 +
 +const char program_name[] = "ffmpeg";
 +const int program_birth_year = 2000;
 +
 +static FILE *vstats_file;
 +
 +static void do_video_stats(AVFormatContext *os, OutputStream *ost, int frame_size);
 +static int64_t getutime(void);
 +
 +static int run_as_daemon  = 0;
 +static int64_t video_size = 0;
 +static int64_t audio_size = 0;
 +static int64_t subtitle_size = 0;
 +static int64_t extra_size = 0;
 +static int nb_frames_dup = 0;
 +static int nb_frames_drop = 0;
 +
 +static int current_time;
 +AVIOContext *progress_avio = NULL;
 +
 +static uint8_t *subtitle_out;
 +
 +#if HAVE_PTHREADS
 +/* signal to input threads that they should exit; set by the main thread */
 +static int transcoding_finished;
 +#endif
 +
 +#define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
 +
 +InputStream **input_streams = NULL;
 +int        nb_input_streams = 0;
 +InputFile   **input_files   = NULL;
 +int        nb_input_files   = 0;
 +
 +OutputStream **output_streams = NULL;
 +int         nb_output_streams = 0;
 +OutputFile   **output_files   = NULL;
 +int         nb_output_files   = 0;
 +
 +FilterGraph **filtergraphs;
 +int        nb_filtergraphs;
 +
 +#if HAVE_TERMIOS_H
 +
 +/* init terminal so that we can grab keys */
 +static struct termios oldtty;
 +static int restore_tty;
 +#endif
 +
 +
 +/* sub2video hack:
 +   Convert subtitles to video with alpha to insert them in filter graphs.
 +   This is a temporary solution until libavfilter gets real subtitles support.
 + */
 +
 +
 +
 +static void sub2video_copy_rect(uint8_t *dst, int dst_linesize, int w, int h,
 +                                AVSubtitleRect *r)
 +{
 +    uint32_t *pal, *dst2;
 +    uint8_t *src, *src2;
 +    int x, y;
 +
 +    if (r->type != SUBTITLE_BITMAP) {
 +        av_log(NULL, AV_LOG_WARNING, "sub2video: non-bitmap subtitle\n");
 +        return;
 +    }
 +    if (r->x < 0 || r->x + r->w > w || r->y < 0 || r->y + r->h > h) {
 +        av_log(NULL, AV_LOG_WARNING, "sub2video: rectangle overflowing\n");
 +        return;
 +    }
 +
 +    dst += r->y * dst_linesize + r->x * 4;
 +    src = r->pict.data[0];
 +    pal = (uint32_t *)r->pict.data[1];
 +    for (y = 0; y < r->h; y++) {
 +        dst2 = (uint32_t *)dst;
 +        src2 = src;
 +        for (x = 0; x < r->w; x++)
 +            *(dst2++) = pal[*(src2++)];
 +        dst += dst_linesize;
 +        src += r->pict.linesize[0];
 +    }
 +}
 +
 +static void sub2video_push_ref(InputStream *ist, int64_t pts)
 +{
 +    AVFilterBufferRef *ref = ist->sub2video.ref;
 +    int i;
 +
 +    ist->sub2video.last_pts = ref->pts = pts;
 +    for (i = 0; i < ist->nb_filters; i++)
 +        av_buffersrc_add_ref(ist->filters[i]->filter,
 +                             avfilter_ref_buffer(ref, ~0),
 +                             AV_BUFFERSRC_FLAG_NO_CHECK_FORMAT |
 +                             AV_BUFFERSRC_FLAG_NO_COPY |
 +                             AV_BUFFERSRC_FLAG_PUSH);
 +}
 +
 +static void sub2video_update(InputStream *ist, AVSubtitle *sub)
 +{
 +    int w = ist->sub2video.w, h = ist->sub2video.h;
 +    AVFilterBufferRef *ref = ist->sub2video.ref;
 +    int8_t *dst;
 +    int     dst_linesize;
 +    int i;
 +    int64_t pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ist->st->time_base);
 +
 +    if (!ref)
 +        return;
 +    dst          = ref->data    [0];
 +    dst_linesize = ref->linesize[0];
 +    memset(dst, 0, h * dst_linesize);
 +    for (i = 0; i < sub->num_rects; i++)
 +        sub2video_copy_rect(dst, dst_linesize, w, h, sub->rects[i]);
 +    sub2video_push_ref(ist, pts);
 +}
 +
 +static void sub2video_heartbeat(InputStream *ist, int64_t pts)
 +{
 +    InputFile *infile = input_files[ist->file_index];
 +    int i, j, nb_reqs;
 +    int64_t pts2;
 +
 +    /* When a frame is read from a file, examine all sub2video streams in
 +       the same file and send the sub2video frame again. Otherwise, decoded
 +       video frames could be accumulating in the filter graph while a filter
 +       (possibly overlay) is desperately waiting for a subtitle frame. */
 +    for (i = 0; i < infile->nb_streams; i++) {
 +        InputStream *ist2 = input_streams[infile->ist_index + i];
 +        if (!ist2->sub2video.ref)
 +            continue;
 +        /* subtitles seem to be usually muxed ahead of other streams;
 +           if not, substracting a larger time here is necessary */
 +        pts2 = av_rescale_q(pts, ist->st->time_base, ist2->st->time_base) - 1;
 +        /* do not send the heartbeat frame if the subtitle is already ahead */
 +        if (pts2 <= ist2->sub2video.last_pts)
 +            continue;
 +        for (j = 0, nb_reqs = 0; j < ist2->nb_filters; j++)
 +            nb_reqs += av_buffersrc_get_nb_failed_requests(ist2->filters[j]->filter);
 +        if (nb_reqs)
 +            sub2video_push_ref(ist2, pts2);
 +    }
 +}
 +
 +static void sub2video_flush(InputStream *ist)
 +{
 +    int i;
 +
 +    for (i = 0; i < ist->nb_filters; i++)
 +        av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
 +}
 +
 +/* end of sub2video hack */
 +
 +void term_exit(void)
 +{
 +    av_log(NULL, AV_LOG_QUIET, "%s", "");
 +#if HAVE_TERMIOS_H
 +    if(restore_tty)
 +        tcsetattr (0, TCSANOW, &oldtty);
 +#endif
 +}
 +
 +static volatile int received_sigterm = 0;
 +static volatile int received_nb_signals = 0;
 +
 +static void
 +sigterm_handler(int sig)
 +{
 +    received_sigterm = sig;
 +    received_nb_signals++;
 +    term_exit();
 +    if(received_nb_signals > 3)
 +        exit(123);
 +}
 +
 +void term_init(void)
 +{
 +#if HAVE_TERMIOS_H
 +    if(!run_as_daemon){
 +        struct termios tty;
 +        int istty = 1;
 +#if HAVE_ISATTY
 +        istty = isatty(0) && isatty(2);
 +#endif
 +        if (istty && tcgetattr (0, &tty) == 0) {
 +            oldtty = tty;
 +            restore_tty = 1;
 +            atexit(term_exit);
 +
 +            tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
 +                             |INLCR|IGNCR|ICRNL|IXON);
 +            tty.c_oflag |= OPOST;
 +            tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
 +            tty.c_cflag &= ~(CSIZE|PARENB);
 +            tty.c_cflag |= CS8;
 +            tty.c_cc[VMIN] = 1;
 +            tty.c_cc[VTIME] = 0;
 +
 +            tcsetattr (0, TCSANOW, &tty);
 +        }
 +        signal(SIGQUIT, sigterm_handler); /* Quit (POSIX).  */
 +    }
 +#endif
 +    avformat_network_deinit();
 +
 +    signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).    */
 +    signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
 +#ifdef SIGXCPU
 +    signal(SIGXCPU, sigterm_handler);
 +#endif
 +}
 +
 +/* read a key without blocking */
 +static int read_key(void)
 +{
 +    unsigned char ch;
 +#if HAVE_TERMIOS_H
 +    int n = 1;
 +    struct timeval tv;
 +    fd_set rfds;
 +
 +    FD_ZERO(&rfds);
 +    FD_SET(0, &rfds);
 +    tv.tv_sec = 0;
 +    tv.tv_usec = 0;
 +    n = select(1, &rfds, NULL, NULL, &tv);
 +    if (n > 0) {
 +        n = read(0, &ch, 1);
 +        if (n == 1)
 +            return ch;
 +
 +        return n;
 +    }
 +#elif HAVE_KBHIT
 +#    if HAVE_PEEKNAMEDPIPE
 +    static int is_pipe;
 +    static HANDLE input_handle;
 +    DWORD dw, nchars;
 +    if(!input_handle){
 +        input_handle = GetStdHandle(STD_INPUT_HANDLE);
 +        is_pipe = !GetConsoleMode(input_handle, &dw);
 +    }
 +
 +    if (stdin->_cnt > 0) {
 +        read(0, &ch, 1);
 +        return ch;
 +    }
 +    if (is_pipe) {
 +        /* When running under a GUI, you will end here. */
 +        if (!PeekNamedPipe(input_handle, NULL, 0, NULL, &nchars, NULL))
 +            return -1;
 +        //Read it
 +        if(nchars != 0) {
 +            read(0, &ch, 1);
 +            return ch;
 +        }else{
 +            return -1;
 +        }
 +    }
 +#    endif
 +    if(kbhit())
 +        return(getch());
 +#endif
 +    return -1;
 +}
 +
 +static int decode_interrupt_cb(void *ctx)
 +{
 +    return received_nb_signals > 1;
 +}
 +
 +const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
 +
-     exit(ret);
++static void exit_program()
 +{
 +    int i, j;
 +
 +    for (i = 0; i < nb_filtergraphs; i++) {
 +        avfilter_graph_free(&filtergraphs[i]->graph);
 +        for (j = 0; j < filtergraphs[i]->nb_inputs; j++) {
 +            av_freep(&filtergraphs[i]->inputs[j]->name);
 +            av_freep(&filtergraphs[i]->inputs[j]);
 +        }
 +        av_freep(&filtergraphs[i]->inputs);
 +        for (j = 0; j < filtergraphs[i]->nb_outputs; j++) {
 +            av_freep(&filtergraphs[i]->outputs[j]->name);
 +            av_freep(&filtergraphs[i]->outputs[j]);
 +        }
 +        av_freep(&filtergraphs[i]->outputs);
 +        av_freep(&filtergraphs[i]);
 +    }
 +    av_freep(&filtergraphs);
 +
 +    av_freep(&subtitle_out);
 +
 +    /* close files */
 +    for (i = 0; i < nb_output_files; i++) {
 +        AVFormatContext *s = output_files[i]->ctx;
 +        if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
 +            avio_close(s->pb);
 +        avformat_free_context(s);
 +        av_dict_free(&output_files[i]->opts);
 +        av_freep(&output_files[i]);
 +    }
 +    for (i = 0; i < nb_output_streams; i++) {
 +        AVBitStreamFilterContext *bsfc = output_streams[i]->bitstream_filters;
 +        while (bsfc) {
 +            AVBitStreamFilterContext *next = bsfc->next;
 +            av_bitstream_filter_close(bsfc);
 +            bsfc = next;
 +        }
 +        output_streams[i]->bitstream_filters = NULL;
 +        avcodec_free_frame(&output_streams[i]->filtered_frame);
 +
 +        av_freep(&output_streams[i]->forced_keyframes);
 +        av_freep(&output_streams[i]->avfilter);
 +        av_freep(&output_streams[i]->logfile_prefix);
 +        av_freep(&output_streams[i]);
 +    }
 +    for (i = 0; i < nb_input_files; i++) {
 +        avformat_close_input(&input_files[i]->ctx);
 +        av_freep(&input_files[i]);
 +    }
 +    for (i = 0; i < nb_input_streams; i++) {
 +        avcodec_free_frame(&input_streams[i]->decoded_frame);
 +        av_dict_free(&input_streams[i]->opts);
 +        free_buffer_pool(&input_streams[i]->buffer_pool);
 +        avfilter_unref_bufferp(&input_streams[i]->sub2video.ref);
 +        av_freep(&input_streams[i]->filters);
 +        av_freep(&input_streams[i]);
 +    }
 +
 +    if (vstats_file)
 +        fclose(vstats_file);
 +    av_free(vstats_filename);
 +
 +    av_freep(&input_streams);
 +    av_freep(&input_files);
 +    av_freep(&output_streams);
 +    av_freep(&output_files);
 +
 +    uninit_opts();
 +
 +    avfilter_uninit();
 +    avformat_network_deinit();
 +
 +    if (received_sigterm) {
 +        av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
 +               (int) received_sigterm);
 +        exit (255);
 +    }
-         exit_program(1);
 +}
 +
 +void assert_avoptions(AVDictionary *m)
 +{
 +    AVDictionaryEntry *t;
 +    if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
 +        av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
-         exit_program(1);
++        exit(1);
 +    }
 +}
 +
 +static void assert_codec_experimental(AVCodecContext *c, int encoder)
 +{
 +    const char *codec_string = encoder ? "encoder" : "decoder";
 +    AVCodec *codec;
 +    if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
 +        c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
 +        av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
 +                "results.\nAdd '-strict experimental' if you want to use it.\n",
 +                codec_string, c->codec->name);
 +        codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
 +        if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
 +            av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
 +                   codec_string, codec->name);
-                 exit_program(1);
++        exit(1);
 +    }
 +}
 +
 +static void update_benchmark(const char *fmt, ...)
 +{
 +    if (do_benchmark_all) {
 +        int64_t t = getutime();
 +        va_list va;
 +        char buf[1024];
 +
 +        if (fmt) {
 +            va_start(va, fmt);
 +            vsnprintf(buf, sizeof(buf), fmt, va);
 +            va_end(va);
 +            printf("bench: %8"PRIu64" %s \n", t - current_time, buf);
 +        }
 +        current_time = t;
 +    }
 +}
 +
 +static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
 +{
 +    AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
 +    AVCodecContext          *avctx = ost->st->codec;
 +    int ret;
 +
 +    if ((avctx->codec_type == AVMEDIA_TYPE_VIDEO && video_sync_method == VSYNC_DROP) ||
 +        (avctx->codec_type == AVMEDIA_TYPE_AUDIO && audio_sync_method < 0))
 +        pkt->pts = pkt->dts = AV_NOPTS_VALUE;
 +
 +    if ((avctx->codec_type == AVMEDIA_TYPE_AUDIO || avctx->codec_type == AVMEDIA_TYPE_VIDEO) && pkt->dts != AV_NOPTS_VALUE) {
 +        int64_t max = ost->st->cur_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT);
 +        if (ost->st->cur_dts && ost->st->cur_dts != AV_NOPTS_VALUE &&  max > pkt->dts) {
 +            av_log(s, max - pkt->dts > 2 || avctx->codec_type == AVMEDIA_TYPE_VIDEO ? AV_LOG_WARNING : AV_LOG_DEBUG,
 +                   "st:%d PTS: %"PRId64" DTS: %"PRId64" < %"PRId64" invalid, clipping\n", pkt->stream_index, pkt->pts, pkt->dts, max);
 +            if(pkt->pts >= pkt->dts)
 +                pkt->pts = FFMAX(pkt->pts, max);
 +            pkt->dts = max;
 +        }
 +    }
 +
 +    /*
 +     * Audio encoders may split the packets --  #frames in != #packets out.
 +     * But there is no reordering, so we can limit the number of output packets
 +     * by simply dropping them here.
 +     * Counting encoded video frames needs to be done separately because of
 +     * reordering, see do_video_out()
 +     */
 +    if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
 +        if (ost->frame_number >= ost->max_frames) {
 +            av_free_packet(pkt);
 +            return;
 +        }
 +        ost->frame_number++;
 +    }
 +
 +    while (bsfc) {
 +        AVPacket new_pkt = *pkt;
 +        int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
 +                                           &new_pkt.data, &new_pkt.size,
 +                                           pkt->data, pkt->size,
 +                                           pkt->flags & AV_PKT_FLAG_KEY);
 +        if(a == 0 && new_pkt.data != pkt->data && new_pkt.destruct) {
 +            uint8_t *t = av_malloc(new_pkt.size + FF_INPUT_BUFFER_PADDING_SIZE); //the new should be a subset of the old so cannot overflow
 +            if(t) {
 +                memcpy(t, new_pkt.data, new_pkt.size);
 +                memset(t + new_pkt.size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
 +                new_pkt.data = t;
 +                a = 1;
 +            } else
 +                a = AVERROR(ENOMEM);
 +        }
 +        if (a > 0) {
 +            av_free_packet(pkt);
 +            new_pkt.destruct = av_destruct_packet;
 +        } else if (a < 0) {
 +            av_log(NULL, AV_LOG_ERROR, "Failed to open bitstream filter %s for stream %d with codec %s",
 +                   bsfc->filter->name, pkt->stream_index,
 +                   avctx->codec ? avctx->codec->name : "copy");
 +            print_error("", a);
 +            if (exit_on_error)
-         exit_program(1);
++                exit(1);
 +        }
 +        *pkt = new_pkt;
 +
 +        bsfc = bsfc->next;
 +    }
 +
 +    pkt->stream_index = ost->index;
 +
 +    if (debug_ts) {
 +        av_log(NULL, AV_LOG_INFO, "muxer <- type:%s "
 +                "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s size:%d\n",
 +                av_get_media_type_string(ost->st->codec->codec_type),
 +                av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, &ost->st->time_base),
 +                av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, &ost->st->time_base),
 +                pkt->size
 +              );
 +    }
 +
 +    ret = av_interleaved_write_frame(s, pkt);
 +    if (ret < 0) {
 +        print_error("av_interleaved_write_frame()", ret);
-         exit_program(1);
++        exit(1);
 +    }
 +}
 +
 +static void close_output_stream(OutputStream *ost)
 +{
 +    OutputFile *of = output_files[ost->file_index];
 +
 +    ost->finished = 1;
 +    if (of->shortest) {
 +        int i;
 +        for (i = 0; i < of->ctx->nb_streams; i++)
 +            output_streams[of->ost_index + i]->finished = 1;
 +    }
 +}
 +
 +static int check_recording_time(OutputStream *ost)
 +{
 +    OutputFile *of = output_files[ost->file_index];
 +
 +    if (of->recording_time != INT64_MAX &&
 +        av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
 +                      AV_TIME_BASE_Q) >= 0) {
 +        close_output_stream(ost);
 +        return 0;
 +    }
 +    return 1;
 +}
 +
 +static void do_audio_out(AVFormatContext *s, OutputStream *ost,
 +                         AVFrame *frame)
 +{
 +    AVCodecContext *enc = ost->st->codec;
 +    AVPacket pkt;
 +    int got_packet = 0;
 +
 +    av_init_packet(&pkt);
 +    pkt.data = NULL;
 +    pkt.size = 0;
 +
 +    if (!check_recording_time(ost))
 +        return;
 +
 +    if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
 +        frame->pts = ost->sync_opts;
 +    ost->sync_opts = frame->pts + frame->nb_samples;
 +
 +    av_assert0(pkt.size || !pkt.data);
 +    update_benchmark(NULL);
 +    if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
 +        av_log(NULL, AV_LOG_FATAL, "Audio encoding failed (avcodec_encode_audio2)\n");
-             exit_program(1);
++        exit(1);
 +    }
 +    update_benchmark("encode_audio %d.%d", ost->file_index, ost->index);
 +
 +    if (got_packet) {
 +        if (pkt.pts != AV_NOPTS_VALUE)
 +            pkt.pts      = av_rescale_q(pkt.pts,      enc->time_base, ost->st->time_base);
 +        if (pkt.dts != AV_NOPTS_VALUE)
 +            pkt.dts      = av_rescale_q(pkt.dts,      enc->time_base, ost->st->time_base);
 +        if (pkt.duration > 0)
 +            pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
 +
 +        if (debug_ts) {
 +            av_log(NULL, AV_LOG_INFO, "encoder -> type:audio "
 +                   "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
 +                   av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
 +                   av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
 +        }
 +
 +        audio_size += pkt.size;
 +        write_frame(s, &pkt, ost);
 +
 +        av_free_packet(&pkt);
 +    }
 +}
 +
 +static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
 +{
 +    AVCodecContext *dec;
 +    AVPicture *picture2;
 +    AVPicture picture_tmp;
 +    uint8_t *buf = 0;
 +
 +    dec = ist->st->codec;
 +
 +    /* deinterlace : must be done before any resize */
 +    if (do_deinterlace) {
 +        int size;
 +
 +        /* create temporary picture */
 +        size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
 +        buf  = av_malloc(size);
 +        if (!buf)
 +            return;
 +
 +        picture2 = &picture_tmp;
 +        avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
 +
 +        if (avpicture_deinterlace(picture2, picture,
 +                                 dec->pix_fmt, dec->width, dec->height) < 0) {
 +            /* if error, do not deinterlace */
 +            av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n");
 +            av_free(buf);
 +            buf = NULL;
 +            picture2 = picture;
 +        }
 +    } else {
 +        picture2 = picture;
 +    }
 +
 +    if (picture != picture2)
 +        *picture = *picture2;
 +    *bufp = buf;
 +}
 +
 +static void do_subtitle_out(AVFormatContext *s,
 +                            OutputStream *ost,
 +                            InputStream *ist,
 +                            AVSubtitle *sub)
 +{
 +    int subtitle_out_max_size = 1024 * 1024;
 +    int subtitle_out_size, nb, i;
 +    AVCodecContext *enc;
 +    AVPacket pkt;
 +    int64_t pts;
 +
 +    if (sub->pts == AV_NOPTS_VALUE) {
 +        av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
 +        if (exit_on_error)
-             exit_program(1);
++            exit(1);
 +        return;
 +    }
 +
 +    enc = ost->st->codec;
 +
 +    if (!subtitle_out) {
 +        subtitle_out = av_malloc(subtitle_out_max_size);
 +    }
 +
 +    /* Note: DVB subtitle need one packet to draw them and one other
 +       packet to clear them */
 +    /* XXX: signal it in the codec context ? */
 +    if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
 +        nb = 2;
 +    else
 +        nb = 1;
 +
 +    /* shift timestamp to honor -ss and make check_recording_time() work with -t */
 +    pts = sub->pts - output_files[ost->file_index]->start_time;
 +    for (i = 0; i < nb; i++) {
 +        ost->sync_opts = av_rescale_q(pts, AV_TIME_BASE_Q, enc->time_base);
 +        if (!check_recording_time(ost))
 +            return;
 +
 +        sub->pts = pts;
 +        // start_display_time is required to be 0
 +        sub->pts               += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
 +        sub->end_display_time  -= sub->start_display_time;
 +        sub->start_display_time = 0;
 +        if (i == 1)
 +            sub->num_rects = 0;
 +        subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
 +                                                    subtitle_out_max_size, sub);
 +        if (subtitle_out_size < 0) {
 +            av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
-             exit_program(1);
++            exit(1);
 +        }
 +
 +        av_init_packet(&pkt);
 +        pkt.data = subtitle_out;
 +        pkt.size = subtitle_out_size;
 +        pkt.pts  = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
 +        pkt.duration = av_rescale_q(sub->end_display_time, (AVRational){ 1, 1000 }, ost->st->time_base);
 +        if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
 +            /* XXX: the pts correction is handled here. Maybe handling
 +               it in the codec would be better */
 +            if (i == 0)
 +                pkt.pts += 90 * sub->start_display_time;
 +            else
 +                pkt.pts += 90 * sub->end_display_time;
 +        }
 +        subtitle_size += pkt.size;
 +        write_frame(s, &pkt, ost);
 +    }
 +}
 +
 +static void do_video_out(AVFormatContext *s,
 +                         OutputStream *ost,
 +                         AVFrame *in_picture,
 +                         float quality)
 +{
 +    int ret, format_video_sync;
 +    AVPacket pkt;
 +    AVCodecContext *enc = ost->st->codec;
 +    int nb_frames, i;
 +    double sync_ipts, delta;
 +    double duration = 0;
 +    int frame_size = 0;
 +    InputStream *ist = NULL;
 +
 +    if (ost->source_index >= 0)
 +        ist = input_streams[ost->source_index];
 +
 +    if(ist && ist->st->start_time != AV_NOPTS_VALUE && ist->st->first_dts != AV_NOPTS_VALUE && ost->frame_rate.num)
 +        duration = 1/(av_q2d(ost->frame_rate) * av_q2d(enc->time_base));
 +
 +    sync_ipts = in_picture->pts;
 +    delta = sync_ipts - ost->sync_opts + duration;
 +
 +    /* by default, we output a single frame */
 +    nb_frames = 1;
 +
 +    format_video_sync = video_sync_method;
 +    if (format_video_sync == VSYNC_AUTO)
 +        format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? ((s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH : VSYNC_VFR) : 1;
 +
 +    switch (format_video_sync) {
 +    case VSYNC_CFR:
 +        // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
 +        if (delta < -1.1)
 +            nb_frames = 0;
 +        else if (delta > 1.1)
 +            nb_frames = lrintf(delta);
 +        break;
 +    case VSYNC_VFR:
 +        if (delta <= -0.6)
 +            nb_frames = 0;
 +        else if (delta > 0.6)
 +            ost->sync_opts = lrint(sync_ipts);
 +        break;
 +    case VSYNC_DROP:
 +    case VSYNC_PASSTHROUGH:
 +        ost->sync_opts = lrint(sync_ipts);
 +        break;
 +    default:
 +        av_assert0(0);
 +    }
 +
 +    nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
 +    if (nb_frames == 0) {
 +        nb_frames_drop++;
 +        av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
 +        return;
 +    } else if (nb_frames > 1) {
 +        if (nb_frames > dts_error_threshold * 30) {
 +            av_log(NULL, AV_LOG_ERROR, "%d frame duplication too large, skipping\n", nb_frames - 1);
 +            nb_frames_drop++;
 +            return;
 +        }
 +        nb_frames_dup += nb_frames - 1;
 +        av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
 +    }
 +
 +  /* duplicates frame if needed */
 +  for (i = 0; i < nb_frames; i++) {
 +    av_init_packet(&pkt);
 +    pkt.data = NULL;
 +    pkt.size = 0;
 +
 +    in_picture->pts = ost->sync_opts;
 +
 +    if (!check_recording_time(ost))
 +        return;
 +
 +    if (s->oformat->flags & AVFMT_RAWPICTURE &&
 +        enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
 +        /* raw pictures are written as AVPicture structure to
 +           avoid any copies. We support temporarily the older
 +           method. */
 +        enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
 +        enc->coded_frame->top_field_first  = in_picture->top_field_first;
 +        pkt.data   = (uint8_t *)in_picture;
 +        pkt.size   =  sizeof(AVPicture);
 +        pkt.pts    = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
 +        pkt.flags |= AV_PKT_FLAG_KEY;
 +
 +        video_size += pkt.size;
 +        write_frame(s, &pkt, ost);
 +    } else {
 +        int got_packet;
 +        AVFrame big_picture;
 +
 +        big_picture = *in_picture;
 +        /* better than nothing: use input picture interlaced
 +           settings */
 +        big_picture.interlaced_frame = in_picture->interlaced_frame;
 +        if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
 +            if (ost->top_field_first == -1)
 +                big_picture.top_field_first = in_picture->top_field_first;
 +            else
 +                big_picture.top_field_first = !!ost->top_field_first;
 +        }
 +
 +        /* handles same_quant here. This is not correct because it may
 +           not be a global option */
 +        big_picture.quality = quality;
 +        if (!enc->me_threshold)
 +            big_picture.pict_type = 0;
 +        if (ost->forced_kf_index < ost->forced_kf_count &&
 +            big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
 +            big_picture.pict_type = AV_PICTURE_TYPE_I;
 +            ost->forced_kf_index++;
 +        }
 +        update_benchmark(NULL);
 +        ret = avcodec_encode_video2(enc, &pkt, &big_picture, &got_packet);
 +        update_benchmark("encode_video %d.%d", ost->file_index, ost->index);
 +        if (ret < 0) {
 +            av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
-             exit_program(1);
++            exit(1);
 +        }
 +
 +        if (got_packet) {
 +            if (pkt.pts == AV_NOPTS_VALUE && !(enc->codec->capabilities & CODEC_CAP_DELAY))
 +                pkt.pts = ost->sync_opts;
 +
 +            if (pkt.pts != AV_NOPTS_VALUE)
 +                pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
 +            if (pkt.dts != AV_NOPTS_VALUE)
 +                pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
 +
 +            if (debug_ts) {
 +                av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
 +                    "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
 +                    av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
 +                    av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
 +            }
 +
 +            frame_size = pkt.size;
 +            video_size += pkt.size;
 +            write_frame(s, &pkt, ost);
 +            av_free_packet(&pkt);
 +
 +            /* if two pass, output log */
 +            if (ost->logfile && enc->stats_out) {
 +                fprintf(ost->logfile, "%s", enc->stats_out);
 +            }
 +        }
 +    }
 +    ost->sync_opts++;
 +    /*
 +     * For video, number of frames in == number of packets out.
 +     * But there may be reordering, so we can't throw away frames on encoder
 +     * flush, we need to limit them here, before they go into encoder.
 +     */
 +    ost->frame_number++;
 +  }
 +
 +    if (vstats_filename && frame_size)
 +        do_video_stats(output_files[ost->file_index]->ctx, ost, frame_size);
 +}
 +
 +static double psnr(double d)
 +{
 +    return -10.0 * log(d) / log(10.0);
 +}
 +
 +static void do_video_stats(AVFormatContext *os, OutputStream *ost,
 +                           int frame_size)
 +{
 +    AVCodecContext *enc;
 +    int frame_number;
 +    double ti1, bitrate, avg_bitrate;
 +
 +    /* this is executed just the first time do_video_stats is called */
 +    if (!vstats_file) {
 +        vstats_file = fopen(vstats_filename, "w");
 +        if (!vstats_file) {
 +            perror("fopen");
-                     exit_program(1);
++            exit(1);
 +        }
 +    }
 +
 +    enc = ost->st->codec;
 +    if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
 +        frame_number = ost->frame_number;
 +        fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
 +        if (enc->flags&CODEC_FLAG_PSNR)
 +            fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
 +
 +        fprintf(vstats_file,"f_size= %6d ", frame_size);
 +        /* compute pts value */
 +        ti1 = ost->sync_opts * av_q2d(enc->time_base);
 +        if (ti1 < 0.01)
 +            ti1 = 0.01;
 +
 +        bitrate     = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
 +        avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
 +        fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
 +               (double)video_size / 1024, ti1, bitrate, avg_bitrate);
 +        fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
 +    }
 +}
 +
 +/**
 + * Get and encode new output from any of the filtergraphs, without causing
 + * activity.
 + *
 + * @return  0 for success, <0 for severe errors
 + */
 +static int reap_filters(void)
 +{
 +    AVFilterBufferRef *picref;
 +    AVFrame *filtered_frame = NULL;
 +    int i;
 +    int64_t frame_pts;
 +
 +    /* Reap all buffers present in the buffer sinks */
 +    for (i = 0; i < nb_output_streams; i++) {
 +        OutputStream *ost = output_streams[i];
 +        OutputFile    *of = output_files[ost->file_index];
 +        int ret = 0;
 +
 +        if (!ost->filter)
 +            continue;
 +
 +        if (!ost->filtered_frame && !(ost->filtered_frame = avcodec_alloc_frame())) {
 +            return AVERROR(ENOMEM);
 +        } else
 +            avcodec_get_frame_defaults(ost->filtered_frame);
 +        filtered_frame = ost->filtered_frame;
 +
 +        while (1) {
 +            ret = av_buffersink_get_buffer_ref(ost->filter->filter, &picref,
 +                                               AV_BUFFERSINK_FLAG_NO_REQUEST);
 +            if (ret < 0) {
 +                if (ret != AVERROR(EAGAIN) && ret != AVERROR_EOF) {
 +                    char buf[256];
 +                    av_strerror(ret, buf, sizeof(buf));
 +                    av_log(NULL, AV_LOG_WARNING,
 +                           "Error in av_buffersink_get_buffer_ref(): %s\n", buf);
 +                }
 +                break;
 +            }
 +            frame_pts = AV_NOPTS_VALUE;
 +            if (picref->pts != AV_NOPTS_VALUE) {
 +                filtered_frame->pts = frame_pts = av_rescale_q(picref->pts,
 +                                                ost->filter->filter->inputs[0]->time_base,
 +                                                ost->st->codec->time_base) -
 +                                    av_rescale_q(of->start_time,
 +                                                AV_TIME_BASE_Q,
 +                                                ost->st->codec->time_base);
 +
 +                if (of->start_time && filtered_frame->pts < 0) {
 +                    avfilter_unref_buffer(picref);
 +                    continue;
 +                }
 +            }
 +            //if (ost->source_index >= 0)
 +            //    *filtered_frame= *input_streams[ost->source_index]->decoded_frame; //for me_threshold
 +
 +
 +            switch (ost->filter->filter->inputs[0]->type) {
 +            case AVMEDIA_TYPE_VIDEO:
 +                avfilter_copy_buf_props(filtered_frame, picref);
 +                filtered_frame->pts = frame_pts;
 +                if (!ost->frame_aspect_ratio)
 +                    ost->st->codec->sample_aspect_ratio = picref->video->sample_aspect_ratio;
 +
 +                do_video_out(of->ctx, ost, filtered_frame,
 +                             same_quant ? ost->last_quality :
 +                                          ost->st->codec->global_quality);
 +                break;
 +            case AVMEDIA_TYPE_AUDIO:
 +                avfilter_copy_buf_props(filtered_frame, picref);
 +                filtered_frame->pts = frame_pts;
 +                do_audio_out(of->ctx, ost, filtered_frame);
 +                break;
 +            default:
 +                // TODO support subtitle filters
 +                av_assert0(0);
 +            }
 +
 +            avfilter_unref_buffer(picref);
 +        }
 +    }
 +
 +    return 0;
 +}
 +
 +static void print_report(int is_last_report, int64_t timer_start, int64_t cur_time)
 +{
 +    char buf[1024];
 +    AVBPrint buf_script;
 +    OutputStream *ost;
 +    AVFormatContext *oc;
 +    int64_t total_size;
 +    AVCodecContext *enc;
 +    int frame_number, vid, i;
 +    double bitrate;
 +    int64_t pts = INT64_MIN;
 +    static int64_t last_time = -1;
 +    static int qp_histogram[52];
 +    int hours, mins, secs, us;
 +
 +    if (!print_stats && !is_last_report && !progress_avio)
 +        return;
 +
 +    if (!is_last_report) {
 +        if (last_time == -1) {
 +            last_time = cur_time;
 +            return;
 +        }
 +        if ((cur_time - last_time) < 500000)
 +            return;
 +        last_time = cur_time;
 +    }
 +
 +
 +    oc = output_files[0]->ctx;
 +
 +    total_size = avio_size(oc->pb);
 +    if (total_size < 0) { // FIXME improve avio_size() so it works with non seekable output too
 +        total_size = avio_tell(oc->pb);
 +        if (total_size < 0)
 +            total_size = 0;
 +    }
 +
 +    buf[0] = '\0';
 +    vid = 0;
 +    av_bprint_init(&buf_script, 0, 1);
 +    for (i = 0; i < nb_output_streams; i++) {
 +        float q = -1;
 +        ost = output_streams[i];
 +        enc = ost->st->codec;
 +        if (!ost->stream_copy && enc->coded_frame)
 +            q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
 +        if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
 +            snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
 +            av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
 +                       ost->file_index, ost->index, q);
 +        }
 +        if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
 +            float fps, t = (cur_time-timer_start) / 1000000.0;
 +
 +            frame_number = ost->frame_number;
 +            fps = t > 1 ? frame_number / t : 0;
 +            snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3.*f q=%3.1f ",
 +                     frame_number, fps < 9.95, fps, q);
 +            av_bprintf(&buf_script, "frame=%d\n", frame_number);
 +            av_bprintf(&buf_script, "fps=%.1f\n", fps);
 +            av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
 +                       ost->file_index, ost->index, q);
 +            if (is_last_report)
 +                snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
 +            if (qp_hist) {
 +                int j;
 +                int qp = lrintf(q);
 +                if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
 +                    qp_histogram[qp]++;
 +                for (j = 0; j < 32; j++)
 +                    snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
 +            }
 +            if (enc->flags&CODEC_FLAG_PSNR) {
 +                int j;
 +                double error, error_sum = 0;
 +                double scale, scale_sum = 0;
 +                double p;
 +                char type[3] = { 'Y','U','V' };
 +                snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
 +                for (j = 0; j < 3; j++) {
 +                    if (is_last_report) {
 +                        error = enc->error[j];
 +                        scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
 +                    } else {
 +                        error = enc->coded_frame->error[j];
 +                        scale = enc->width * enc->height * 255.0 * 255.0;
 +                    }
 +                    if (j)
 +                        scale /= 4;
 +                    error_sum += error;
 +                    scale_sum += scale;
 +                    p = psnr(error / scale);
 +                    snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], p);
 +                    av_bprintf(&buf_script, "stream_%d_%d_psnr_%c=%2.2f\n",
 +                               ost->file_index, ost->index, type[i] | 32, p);
 +                }
 +                p = psnr(error_sum / scale_sum);
 +                snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
 +                av_bprintf(&buf_script, "stream_%d_%d_psnr_all=%2.2f\n",
 +                           ost->file_index, ost->index, p);
 +            }
 +            vid = 1;
 +        }
 +        /* compute min output value */
 +        if ((is_last_report || !ost->finished) && ost->st->pts.val != AV_NOPTS_VALUE)
 +            pts = FFMAX(pts, av_rescale_q(ost->st->pts.val,
 +                                          ost->st->time_base, AV_TIME_BASE_Q));
 +    }
 +
 +    secs = pts / AV_TIME_BASE;
 +    us = pts % AV_TIME_BASE;
 +    mins = secs / 60;
 +    secs %= 60;
 +    hours = mins / 60;
 +    mins %= 60;
 +
 +    bitrate = pts ? total_size * 8 / (pts / 1000.0) : 0;
 +
 +    snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
 +             "size=%8.0fkB time=", total_size / 1024.0);
 +    snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
 +             "%02d:%02d:%02d.%02d ", hours, mins, secs,
 +             (100 * us) / AV_TIME_BASE);
 +    snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
 +             "bitrate=%6.1fkbits/s", bitrate);
 +    av_bprintf(&buf_script, "total_size=%"PRId64"\n", total_size);
 +    av_bprintf(&buf_script, "out_time_ms=%"PRId64"\n", pts);
 +    av_bprintf(&buf_script, "out_time=%02d:%02d:%02d.%06d\n",
 +               hours, mins, secs, us);
 +
 +    if (nb_frames_dup || nb_frames_drop)
 +        snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
 +                nb_frames_dup, nb_frames_drop);
 +    av_bprintf(&buf_script, "dup_frames=%d\n", nb_frames_dup);
 +    av_bprintf(&buf_script, "drop_frames=%d\n", nb_frames_drop);
 +
 +    if (print_stats || is_last_report) {
 +    av_log(NULL, AV_LOG_INFO, "%s    \r", buf);
 +
 +    fflush(stderr);
 +    }
 +
 +    if (progress_avio) {
 +        av_bprintf(&buf_script, "progress=%s\n",
 +                   is_last_report ? "end" : "continue");
 +        avio_write(progress_avio, buf_script.str,
 +                   FFMIN(buf_script.len, buf_script.size - 1));
 +        avio_flush(progress_avio);
 +        av_bprint_finalize(&buf_script, NULL);
 +        if (is_last_report) {
 +            avio_close(progress_avio);
 +            progress_avio = NULL;
 +        }
 +    }
 +
 +    if (is_last_report) {
 +        int64_t raw= audio_size + video_size + subtitle_size + extra_size;
 +        av_log(NULL, AV_LOG_INFO, "\n");
 +        av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB subtitle:%1.0f global headers:%1.0fkB muxing overhead %f%%\n",
 +               video_size / 1024.0,
 +               audio_size / 1024.0,
 +               subtitle_size / 1024.0,
 +               extra_size / 1024.0,
 +               100.0 * (total_size - raw) / raw
 +        );
 +        if(video_size + audio_size + subtitle_size + extra_size == 0){
 +            av_log(NULL, AV_LOG_WARNING, "Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)\n");
 +        }
 +    }
 +}
 +
 +static void flush_encoders(void)
 +{
 +    int i, ret;
 +
 +    for (i = 0; i < nb_output_streams; i++) {
 +        OutputStream   *ost = output_streams[i];
 +        AVCodecContext *enc = ost->st->codec;
 +        AVFormatContext *os = output_files[ost->file_index]->ctx;
 +        int stop_encoding = 0;
 +
 +        if (!ost->encoding_needed)
 +            continue;
 +
 +        if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
 +            continue;
 +        if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
 +            continue;
 +
 +        for (;;) {
 +            int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
 +            const char *desc;
 +            int64_t *size;
 +
 +            switch (ost->st->codec->codec_type) {
 +            case AVMEDIA_TYPE_AUDIO:
 +                encode = avcodec_encode_audio2;
 +                desc   = "Audio";
 +                size   = &audio_size;
 +                break;
 +            case AVMEDIA_TYPE_VIDEO:
 +                encode = avcodec_encode_video2;
 +                desc   = "Video";
 +                size   = &video_size;
 +                break;
 +            default:
 +                stop_encoding = 1;
 +            }
 +
 +            if (encode) {
 +                AVPacket pkt;
 +                int got_packet;
 +                av_init_packet(&pkt);
 +                pkt.data = NULL;
 +                pkt.size = 0;
 +
 +                update_benchmark(NULL);
 +                ret = encode(enc, &pkt, NULL, &got_packet);
 +                update_benchmark("flush %s %d.%d", desc, ost->file_index, ost->index);
 +                if (ret < 0) {
 +                    av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
-             exit_program(1);
++                    exit(1);
 +                }
 +                *size += pkt.size;
 +                if (ost->logfile && enc->stats_out) {
 +                    fprintf(ost->logfile, "%s", enc->stats_out);
 +                }
 +                if (!got_packet) {
 +                    stop_encoding = 1;
 +                    break;
 +                }
 +                if (pkt.pts != AV_NOPTS_VALUE)
 +                    pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
 +                if (pkt.dts != AV_NOPTS_VALUE)
 +                    pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
 +                write_frame(os, &pkt, ost);
 +            }
 +
 +            if (stop_encoding)
 +                break;
 +        }
 +    }
 +}
 +
 +/*
 + * Check whether a packet from ist should be written into ost at this time
 + */
 +static int check_output_constraints(InputStream *ist, OutputStream *ost)
 +{
 +    OutputFile *of = output_files[ost->file_index];
 +    int ist_index  = input_files[ist->file_index]->ist_index + ist->st->index;
 +
 +    if (ost->source_index != ist_index)
 +        return 0;
 +
 +    if (of->start_time && ist->pts < of->start_time)
 +        return 0;
 +
 +    return 1;
 +}
 +
 +static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
 +{
 +    OutputFile *of = output_files[ost->file_index];
 +    int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
 +    AVPicture pict;
 +    AVPacket opkt;
 +
 +    av_init_packet(&opkt);
 +
 +    if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
 +        !ost->copy_initial_nonkeyframes)
 +        return;
 +
 +    if (!ost->frame_number && ist->pts < of->start_time &&
 +        !ost->copy_prior_start)
 +        return;
 +
 +    if (of->recording_time != INT64_MAX &&
 +        ist->pts >= of->recording_time + of->start_time) {
 +        close_output_stream(ost);
 +        return;
 +    }
 +
 +    /* force the input stream PTS */
 +    if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
 +        audio_size += pkt->size;
 +    else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
 +        video_size += pkt->size;
 +        ost->sync_opts++;
 +    } else if (ost->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
 +        subtitle_size += pkt->size;
 +    }
 +
 +    if (pkt->pts != AV_NOPTS_VALUE)
 +        opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
 +    else
 +        opkt.pts = AV_NOPTS_VALUE;
 +
 +    if (pkt->dts == AV_NOPTS_VALUE)
 +        opkt.dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ost->st->time_base);
 +    else
 +        opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
 +    opkt.dts -= ost_tb_start_time;
 +
 +    opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
 +    opkt.flags    = pkt->flags;
 +
 +    // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
 +    if (  ost->st->codec->codec_id != AV_CODEC_ID_H264
 +       && ost->st->codec->codec_id != AV_CODEC_ID_MPEG1VIDEO
 +       && ost->st->codec->codec_id != AV_CODEC_ID_MPEG2VIDEO
 +       && ost->st->codec->codec_id != AV_CODEC_ID_VC1
 +       ) {
 +        if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY))
 +            opkt.destruct = av_destruct_packet;
 +    } else {
 +        opkt.data = pkt->data;
 +        opkt.size = pkt->size;
 +    }
 +
 +    if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (of->ctx->oformat->flags & AVFMT_RAWPICTURE)) {
 +        /* store AVPicture in AVPacket, as expected by the output format */
 +        avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
 +        opkt.data = (uint8_t *)&pict;
 +        opkt.size = sizeof(AVPicture);
 +        opkt.flags |= AV_PKT_FLAG_KEY;
 +    }
 +
 +    write_frame(of->ctx, &opkt, ost);
 +    ost->st->codec->frame_number++;
 +    av_free_packet(&opkt);
 +}
 +
 +static void rate_emu_sleep(InputStream *ist)
 +{
 +    if (input_files[ist->file_index]->rate_emu) {
 +        int64_t pts = av_rescale(ist->dts, 1000000, AV_TIME_BASE);
 +        int64_t now = av_gettime() - ist->start;
 +        if (pts > now)
 +            av_usleep(pts - now);
 +    }
 +}
 +
 +int guess_input_channel_layout(InputStream *ist)
 +{
 +    AVCodecContext *dec = ist->st->codec;
 +
 +    if (!dec->channel_layout) {
 +        char layout_name[256];
 +
 +        dec->channel_layout = av_get_default_channel_layout(dec->channels);
 +        if (!dec->channel_layout)
 +            return 0;
 +        av_get_channel_layout_string(layout_name, sizeof(layout_name),
 +                                     dec->channels, dec->channel_layout);
 +        av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for  Input Stream "
 +               "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
 +    }
 +    return 1;
 +}
 +
 +static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
 +{
 +    AVFrame *decoded_frame;
 +    AVCodecContext *avctx = ist->st->codec;
 +    int i, ret, resample_changed;
 +    AVRational decoded_frame_tb;
 +
 +    if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
 +        return AVERROR(ENOMEM);
 +    else
 +        avcodec_get_frame_defaults(ist->decoded_frame);
 +    decoded_frame = ist->decoded_frame;
 +
 +    update_benchmark(NULL);
 +    ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
 +    update_benchmark("decode_audio %d.%d", ist->file_index, ist->st->index);
 +
 +    if (ret >= 0 && avctx->sample_rate <= 0) {
 +        av_log(avctx, AV_LOG_ERROR, "Sample rate %d invalid\n", avctx->sample_rate);
 +        ret = AVERROR_INVALIDDATA;
 +    }
 +
 +    if (!*got_output || ret < 0) {
 +        if (!pkt->size) {
 +            for (i = 0; i < ist->nb_filters; i++)
 +                av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
 +        }
 +        return ret;
 +    }
 +
 +#if 1
 +    /* increment next_dts to use for the case where the input stream does not
 +       have timestamps or there are multiple frames in the packet */
 +    ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
 +                     avctx->sample_rate;
 +    ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
 +                     avctx->sample_rate;
 +#endif
 +
 +    rate_emu_sleep(ist);
 +
 +    resample_changed = ist->resample_sample_fmt     != decoded_frame->format         ||
 +                       ist->resample_channels       != avctx->channels               ||
 +                       ist->resample_channel_layout != decoded_frame->channel_layout ||
 +                       ist->resample_sample_rate    != decoded_frame->sample_rate;
 +    if (resample_changed) {
 +        char layout1[64], layout2[64];
 +
 +        if (!guess_input_channel_layout(ist)) {
 +            av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
 +                   "layout for Input Stream #%d.%d\n", ist->file_index,
 +                   ist->st->index);
-                     exit_program(1);
++            exit(1);
 +        }
 +        decoded_frame->channel_layout = avctx->channel_layout;
 +
 +        av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
 +                                     ist->resample_channel_layout);
 +        av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
 +                                     decoded_frame->channel_layout);
 +
 +        av_log(NULL, AV_LOG_INFO,
 +               "Input stream #%d:%d frame changed from rate:%d fmt:%s ch:%d chl:%s to rate:%d fmt:%s ch:%d chl:%s\n",
 +               ist->file_index, ist->st->index,
 +               ist->resample_sample_rate,  av_get_sample_fmt_name(ist->resample_sample_fmt),
 +               ist->resample_channels, layout1,
 +               decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
 +               avctx->channels, layout2);
 +
 +        ist->resample_sample_fmt     = decoded_frame->format;
 +        ist->resample_sample_rate    = decoded_frame->sample_rate;
 +        ist->resample_channel_layout = decoded_frame->channel_layout;
 +        ist->resample_channels       = avctx->channels;
 +
 +        for (i = 0; i < nb_filtergraphs; i++)
 +            if (ist_in_filtergraph(filtergraphs[i], ist)) {
 +                FilterGraph *fg = filtergraphs[i];
 +                int j;
 +                if (configure_filtergraph(fg) < 0) {
 +                    av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
-                 exit_program(1);
++                    exit(1);
 +                }
 +                for (j = 0; j < fg->nb_outputs; j++) {
 +                    OutputStream *ost = fg->outputs[j]->ost;
 +                    if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
 +                        !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
 +                        av_buffersink_set_frame_size(ost->filter->filter,
 +                                                     ost->st->codec->frame_size);
 +                }
 +            }
 +    }
 +
 +    /* if the decoder provides a pts, use it instead of the last packet pts.
 +       the decoder could be delaying output by a packet or more. */
 +    if (decoded_frame->pts != AV_NOPTS_VALUE) {
 +        ist->dts = ist->next_dts = ist->pts = ist->next_pts = av_rescale_q(decoded_frame->pts, avctx->time_base, AV_TIME_BASE_Q);
 +        decoded_frame_tb   = avctx->time_base;
 +    } else if (decoded_frame->pkt_pts != AV_NOPTS_VALUE) {
 +        decoded_frame->pts = decoded_frame->pkt_pts;
 +        pkt->pts           = AV_NOPTS_VALUE;
 +        decoded_frame_tb   = ist->st->time_base;
 +    } else if (pkt->pts != AV_NOPTS_VALUE) {
 +        decoded_frame->pts = pkt->pts;
 +        pkt->pts           = AV_NOPTS_VALUE;
 +        decoded_frame_tb   = ist->st->time_base;
 +    }else {
 +        decoded_frame->pts = ist->dts;
 +        decoded_frame_tb   = AV_TIME_BASE_Q;
 +    }
 +    if (decoded_frame->pts != AV_NOPTS_VALUE)
 +        decoded_frame->pts = av_rescale_q(decoded_frame->pts,
 +                                          decoded_frame_tb,
 +                                          (AVRational){1, ist->st->codec->sample_rate});
 +    for (i = 0; i < ist->nb_filters; i++)
 +        av_buffersrc_add_frame(ist->filters[i]->filter, decoded_frame,
 +                               AV_BUFFERSRC_FLAG_PUSH);
 +
 +    decoded_frame->pts = AV_NOPTS_VALUE;
 +
 +    return ret;
 +}
 +
 +static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
 +{
 +    AVFrame *decoded_frame;
 +    void *buffer_to_free = NULL;
 +    int i, ret = 0, resample_changed;
 +    int64_t best_effort_timestamp;
 +    AVRational *frame_sample_aspect;
 +    float quality;
 +
 +    if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
 +        return AVERROR(ENOMEM);
 +    else
 +        avcodec_get_frame_defaults(ist->decoded_frame);
 +    decoded_frame = ist->decoded_frame;
 +    pkt->dts  = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ist->st->time_base);
 +
 +    update_benchmark(NULL);
 +    ret = avcodec_decode_video2(ist->st->codec,
 +                                decoded_frame, got_output, pkt);
 +    update_benchmark("decode_video %d.%d", ist->file_index, ist->st->index);
 +    if (!*got_output || ret < 0) {
 +        if (!pkt->size) {
 +            for (i = 0; i < ist->nb_filters; i++)
 +                av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
 +        }
 +        return ret;
 +    }
 +
 +    quality = same_quant ? decoded_frame->quality : 0;
 +
 +    if(ist->top_field_first>=0)
 +        decoded_frame->top_field_first = ist->top_field_first;
 +
 +    best_effort_timestamp= av_frame_get_best_effort_timestamp(decoded_frame);
 +    if(best_effort_timestamp != AV_NOPTS_VALUE)
 +        ist->next_pts = ist->pts = av_rescale_q(decoded_frame->pts = best_effort_timestamp, ist->st->time_base, AV_TIME_BASE_Q);
 +
 +    if (debug_ts) {
 +        av_log(NULL, AV_LOG_INFO, "decoder -> ist_index:%d type:video "
 +                "frame_pts:%s frame_pts_time:%s best_effort_ts:%"PRId64" best_effort_ts_time:%s keyframe:%d frame_type:%d \n",
 +                ist->st->index, av_ts2str(decoded_frame->pts),
 +                av_ts2timestr(decoded_frame->pts, &ist->st->time_base),
 +                best_effort_timestamp,
 +                av_ts2timestr(best_effort_timestamp, &ist->st->time_base),
 +                decoded_frame->key_frame, decoded_frame->pict_type);
 +    }
 +
 +    pkt->size = 0;
 +    pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
 +
 +    rate_emu_sleep(ist);
 +
 +    if (ist->st->sample_aspect_ratio.num)
 +        decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
 +
 +    resample_changed = ist->resample_width   != decoded_frame->width  ||
 +                       ist->resample_height  != decoded_frame->height ||
 +                       ist->resample_pix_fmt != decoded_frame->format;
 +    if (resample_changed) {
 +        av_log(NULL, AV_LOG_INFO,
 +               "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
 +               ist->file_index, ist->st->index,
 +               ist->resample_width,  ist->resample_height,  av_get_pix_fmt_name(ist->resample_pix_fmt),
 +               decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
 +
 +        ist->resample_width   = decoded_frame->width;
 +        ist->resample_height  = decoded_frame->height;
 +        ist->resample_pix_fmt = decoded_frame->format;
 +
 +        for (i = 0; i < nb_filtergraphs; i++)
 +            if (ist_in_filtergraph(filtergraphs[i], ist) &&
 +                configure_filtergraph(filtergraphs[i]) < 0) {
 +                av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
-             exit_program(1);
++                exit(1);
 +            }
 +    }
 +
 +    frame_sample_aspect= av_opt_ptr(avcodec_get_frame_class(), decoded_frame, "sample_aspect_ratio");
 +    for (i = 0; i < ist->nb_filters; i++) {
 +        int changed =      ist->st->codec->width   != ist->filters[i]->filter->outputs[0]->w
 +                        || ist->st->codec->height  != ist->filters[i]->filter->outputs[0]->h
 +                        || ist->st->codec->pix_fmt != ist->filters[i]->filter->outputs[0]->format;
 +        // XXX what an ugly hack
 +        if (ist->filters[i]->graph->nb_outputs == 1)
 +            ist->filters[i]->graph->outputs[0]->ost->last_quality = quality;
 +
 +        if (!frame_sample_aspect->num)
 +            *frame_sample_aspect = ist->st->sample_aspect_ratio;
 +        if (ist->dr1 && decoded_frame->type==FF_BUFFER_TYPE_USER && !changed) {
 +            FrameBuffer      *buf = decoded_frame->opaque;
 +            AVFilterBufferRef *fb = avfilter_get_video_buffer_ref_from_arrays(
 +                                        decoded_frame->data, decoded_frame->linesize,
 +                                        AV_PERM_READ | AV_PERM_PRESERVE,
 +                                        ist->st->codec->width, ist->st->codec->height,
 +                                        ist->st->codec->pix_fmt);
 +
 +            avfilter_copy_frame_props(fb, decoded_frame);
 +            fb->buf->priv           = buf;
 +            fb->buf->free           = filter_release_buffer;
 +
 +            av_assert0(buf->refcount>0);
 +            buf->refcount++;
 +            av_buffersrc_add_ref(ist->filters[i]->filter, fb,
 +                                 AV_BUFFERSRC_FLAG_NO_CHECK_FORMAT |
 +                                 AV_BUFFERSRC_FLAG_NO_COPY |
 +                                 AV_BUFFERSRC_FLAG_PUSH);
 +        } else
 +        if(av_buffersrc_add_frame(ist->filters[i]->filter, decoded_frame, AV_BUFFERSRC_FLAG_PUSH)<0) {
 +            av_log(NULL, AV_LOG_FATAL, "Failed to inject frame into filter network\n");
-         exit_program(1);
++            exit(1);
 +        }
 +
 +    }
 +
 +    av_free(buffer_to_free);
 +    return ret;
 +}
 +
 +static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
 +{
 +    AVSubtitle subtitle;
 +    int i, ret = avcodec_decode_subtitle2(ist->st->codec,
 +                                          &subtitle, got_output, pkt);
 +    if (ret < 0 || !*got_output) {
 +        if (!pkt->size)
 +            sub2video_flush(ist);
 +        return ret;
 +    }
 +
 +    if (ist->fix_sub_duration) {
 +        if (ist->prev_sub.got_output) {
 +            int end = av_rescale(subtitle.pts - ist->prev_sub.subtitle.pts,
 +                                 1000, AV_TIME_BASE);
 +            if (end < ist->prev_sub.subtitle.end_display_time) {
 +                av_log(ist->st->codec, AV_LOG_DEBUG,
 +                       "Subtitle duration reduced from %d to %d\n",
 +                       ist->prev_sub.subtitle.end_display_time, end);
 +                ist->prev_sub.subtitle.end_display_time = end;
 +            }
 +        }
 +        FFSWAP(int,        *got_output, ist->prev_sub.got_output);
 +        FFSWAP(int,        ret,         ist->prev_sub.ret);
 +        FFSWAP(AVSubtitle, subtitle,    ist->prev_sub.subtitle);
 +    }
 +
 +    sub2video_update(ist, &subtitle);
 +
 +    if (!*got_output || !subtitle.num_rects)
 +        return ret;
 +
 +    rate_emu_sleep(ist);
 +
 +    for (i = 0; i < nb_output_streams; i++) {
 +        OutputStream *ost = output_streams[i];
 +
 +        if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
 +            continue;
 +
 +        do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle);
 +    }
 +
 +    avsubtitle_free(&subtitle);
 +    return ret;
 +}
 +
 +/* pkt = NULL means EOF (needed to flush decoder buffers) */
 +static int output_packet(InputStream *ist, const AVPacket *pkt)
 +{
 +    int ret = 0, i;
 +    int got_output;
 +
 +    AVPacket avpkt;
 +    if (!ist->saw_first_ts) {
 +        ist->dts = ist->st->avg_frame_rate.num ? - ist->st->codec->has_b_frames * AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0;
 +        ist->pts = 0;
 +        if (pkt != NULL && pkt->pts != AV_NOPTS_VALUE && !ist->decoding_needed) {
 +            ist->dts += av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
 +            ist->pts = ist->dts; //unused but better to set it to a value thats not totally wrong
 +        }
 +        ist->saw_first_ts = 1;
 +    }
 +
 +    if (ist->next_dts == AV_NOPTS_VALUE)
 +        ist->next_dts = ist->dts;
 +    if (ist->next_pts == AV_NOPTS_VALUE)
 +        ist->next_pts = ist->pts;
 +
 +    if (pkt == NULL) {
 +        /* EOF handling */
 +        av_init_packet(&avpkt);
 +        avpkt.data = NULL;
 +        avpkt.size = 0;
 +        goto handle_eof;
 +    } else {
 +        avpkt = *pkt;
 +    }
 +
 +    if (pkt->dts != AV_NOPTS_VALUE) {
 +        ist->next_dts = ist->dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
 +        if (ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO || !ist->decoding_needed)
 +            ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
 +    }
 +
 +    // while we have more to decode or while the decoder did output something on EOF
 +    while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
 +        int duration;
 +    handle_eof:
 +
 +        ist->pts = ist->next_pts;
 +        ist->dts = ist->next_dts;
 +
 +        if (avpkt.size && avpkt.size != pkt->size) {
 +            av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
 +                   "Multiple frames in a packet from stream %d\n", pkt->stream_index);
 +            ist->showed_multi_packet_warning = 1;
 +        }
 +
 +        switch (ist->st->codec->codec_type) {
 +        case AVMEDIA_TYPE_AUDIO:
 +            ret = decode_audio    (ist, &avpkt, &got_output);
 +            break;
 +        case AVMEDIA_TYPE_VIDEO:
 +            ret = decode_video    (ist, &avpkt, &got_output);
 +            if (avpkt.duration) {
 +                duration = av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
 +            } else if(ist->st->codec->time_base.num != 0 && ist->st->codec->time_base.den != 0) {
 +                int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
 +                duration = ((int64_t)AV_TIME_BASE *
 +                                ist->st->codec->time_base.num * ticks) /
 +                                ist->st->codec->time_base.den;
 +            } else
 +                duration = 0;
 +
 +            if(ist->dts != AV_NOPTS_VALUE && duration) {
 +                ist->next_dts += duration;
 +            }else
 +                ist->next_dts = AV_NOPTS_VALUE;
 +
 +            if (got_output)
 +                ist->next_pts += duration; //FIXME the duration is not correct in some cases
 +            break;
 +        case AVMEDIA_TYPE_SUBTITLE:
 +            ret = transcode_subtitles(ist, &avpkt, &got_output);
 +            break;
 +        default:
 +            return -1;
 +        }
 +
 +        if (ret < 0)
 +            return ret;
 +
 +        avpkt.dts=
 +        avpkt.pts= AV_NOPTS_VALUE;
 +
 +        // touch data and size only if not EOF
 +        if (pkt) {
 +            if(ist->st->codec->codec_type != AVMEDIA_TYPE_AUDIO)
 +                ret = avpkt.size;
 +            avpkt.data += ret;
 +            avpkt.size -= ret;
 +        }
 +        if (!got_output) {
 +            continue;
 +        }
 +    }
 +
 +    /* handle stream copy */
 +    if (!ist->decoding_needed) {
 +        rate_emu_sleep(ist);
 +        ist->dts = ist->next_dts;
 +        switch (ist->st->codec->codec_type) {
 +        case AVMEDIA_TYPE_AUDIO:
 +            ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
 +                             ist->st->codec->sample_rate;
 +            break;
 +        case AVMEDIA_TYPE_VIDEO:
 +            if (pkt->duration) {
 +                ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
 +            } else if(ist->st->codec->time_base.num != 0) {
 +                int ticks= ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
 +                ist->next_dts += ((int64_t)AV_TIME_BASE *
 +                                  ist->st->codec->time_base.num * ticks) /
 +                                  ist->st->codec->time_base.den;
 +            }
 +            break;
 +        }
 +        ist->pts = ist->dts;
 +        ist->next_pts = ist->next_dts;
 +    }
 +    for (i = 0; pkt && i < nb_output_streams; i++) {
 +        OutputStream *ost = output_streams[i];
 +
 +        if (!check_output_constraints(ist, ost) || ost->encoding_needed)
 +            continue;
 +
 +        do_streamcopy(ist, ost, pkt);
 +    }
 +
 +    return 0;
 +}
 +
 +static void print_sdp(void)
 +{
 +    char sdp[2048];
 +    int i;
 +    AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
 +
 +    if (!avc)
-         exit_program(1);
++        exit(1);
 +    for (i = 0; i < nb_output_files; i++)
 +        avc[i] = output_files[i]->ctx;
 +
 +    av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
 +    printf("SDP:\n%s\n", sdp);
 +    fflush(stdout);
 +    av_freep(&avc);
 +}
 +
 +static int init_input_stream(int ist_index, char *error, int error_len)
 +{
 +    InputStream *ist = input_streams[ist_index];
 +
 +    if (ist->decoding_needed) {
 +        AVCodec *codec = ist->dec;
 +        if (!codec) {
 +            snprintf(error, error_len, "Decoder (codec %s) not found for input stream #%d:%d",
 +                    avcodec_get_name(ist->st->codec->codec_id), ist->file_index, ist->st->index);
 +            return AVERROR(EINVAL);
 +        }
 +
 +        ist->dr1 = (codec->capabilities & CODEC_CAP_DR1) && !do_deinterlace;
 +        if (codec->type == AVMEDIA_TYPE_VIDEO && ist->dr1) {
 +            ist->st->codec->get_buffer     = codec_get_buffer;
 +            ist->st->codec->release_buffer = codec_release_buffer;
 +            ist->st->codec->opaque         = &ist->buffer_pool;
 +        }
 +
 +        if (!av_dict_get(ist->opts, "threads", NULL, 0))
 +            av_dict_set(&ist->opts, "threads", "auto", 0);
 +        if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
 +            snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
 +                    ist->file_index, ist->st->index);
 +            return AVERROR(EINVAL);
 +        }
 +        assert_codec_experimental(ist->st->codec, 0);
 +        assert_avoptions(ist->opts);
 +    }
 +
 +    ist->next_pts = AV_NOPTS_VALUE;
 +    ist->next_dts = AV_NOPTS_VALUE;
 +    ist->is_start = 1;
 +
 +    return 0;
 +}
 +
 +static InputStream *get_input_stream(OutputStream *ost)
 +{
 +    if (ost->source_index >= 0)
 +        return input_streams[ost->source_index];
 +    return NULL;
 +}
 +
 +static void parse_forced_key_frames(char *kf, OutputStream *ost,
 +                                    AVCodecContext *avctx)
 +{
 +    char *p;
 +    int n = 1, i;
 +    int64_t t;
 +
 +    for (p = kf; *p; p++)
 +        if (*p == ',')
 +            n++;
 +    ost->forced_kf_count = n;
 +    ost->forced_kf_pts   = av_malloc(sizeof(*ost->forced_kf_pts) * n);
 +    if (!ost->forced_kf_pts) {
 +        av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
-                     exit_program(1);
++        exit(1);
 +    }
 +
 +    p = kf;
 +    for (i = 0; i < n; i++) {
 +        char *next = strchr(p, ',');
 +
 +        if (next)
 +            *next++ = 0;
 +
 +        t = parse_time_or_die("force_key_frames", p, 1);
 +        ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
 +
 +        p = next;
 +    }
 +}
 +
 +static void report_new_stream(int input_index, AVPacket *pkt)
 +{
 +    InputFile *file = input_files[input_index];
 +    AVStream *st = file->ctx->streams[pkt->stream_index];
 +
 +    if (pkt->stream_index < file->nb_streams_warn)
 +        return;
 +    av_log(file->ctx, AV_LOG_WARNING,
 +           "New %s stream %d:%d at pos:%"PRId64" and DTS:%ss\n",
 +           av_get_media_type_string(st->codec->codec_type),
 +           input_index, pkt->stream_index,
 +           pkt->pos, av_ts2timestr(pkt->dts, &st->time_base));
 +    file->nb_streams_warn = pkt->stream_index + 1;
 +}
 +
 +static int transcode_init(void)
 +{
 +    int ret = 0, i, j, k;
 +    AVFormatContext *oc;
 +    AVCodecContext *codec;
 +    OutputStream *ost;
 +    InputStream *ist;
 +    char error[1024];
 +    int want_sdp = 1;
 +
 +    /* init framerate emulation */
 +    for (i = 0; i < nb_input_files; i++) {
 +        InputFile *ifile = input_files[i];
 +        if (ifile->rate_emu)
 +            for (j = 0; j < ifile->nb_streams; j++)
 +                input_streams[j + ifile->ist_index]->start = av_gettime();
 +    }
 +
 +    /* output stream init */
 +    for (i = 0; i < nb_output_files; i++) {
 +        oc = output_files[i]->ctx;
 +        if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
 +            av_dump_format(oc, i, oc->filename, 1);
 +            av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
 +            return AVERROR(EINVAL);
 +        }
 +    }
 +
 +    /* init complex filtergraphs */
 +    for (i = 0; i < nb_filtergraphs; i++)
 +        if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
 +            return ret;
 +
 +    /* for each output stream, we compute the right encoding parameters */
 +    for (i = 0; i < nb_output_streams; i++) {
 +        AVCodecContext *icodec = NULL;
 +        ost = output_streams[i];
 +        oc  = output_files[ost->file_index]->ctx;
 +        ist = get_input_stream(ost);
 +
 +        if (ost->attachment_filename)
 +            continue;
 +
 +        codec  = ost->st->codec;
 +
 +        if (ist) {
 +            icodec = ist->st->codec;
 +
 +            ost->st->disposition          = ist->st->disposition;
 +            codec->bits_per_raw_sample    = icodec->bits_per_raw_sample;
 +            codec->chroma_sample_location = icodec->chroma_sample_location;
 +        }
 +
 +        if (ost->stream_copy) {
 +            uint64_t extra_size;
 +
 +            av_assert0(ist && !ost->filter);
 +
 +            extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
 +
 +            if (extra_size > INT_MAX) {
 +                return AVERROR(EINVAL);
 +            }
 +
 +            /* if stream_copy is selected, no need to decode or encode */
 +            codec->codec_id   = icodec->codec_id;
 +            codec->codec_type = icodec->codec_type;
 +
 +            if (!codec->codec_tag) {
 +                if (!oc->oformat->codec_tag ||
 +                     av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
 +                     av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)
 +                    codec->codec_tag = icodec->codec_tag;
 +            }
 +
 +            codec->bit_rate       = icodec->bit_rate;
 +            codec->rc_max_rate    = icodec->rc_max_rate;
 +            codec->rc_buffer_size = icodec->rc_buffer_size;
 +            codec->field_order    = icodec->field_order;
 +            codec->extradata      = av_mallocz(extra_size);
 +            if (!codec->extradata) {
 +                return AVERROR(ENOMEM);
 +            }
 +            memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
 +            codec->extradata_size= icodec->extradata_size;
 +            codec->bits_per_coded_sample  = icodec->bits_per_coded_sample;
 +
 +            codec->time_base = ist->st->time_base;
 +            /*
 +             * Avi is a special case here because it supports variable fps but
 +             * having the fps and timebase differe significantly adds quite some
 +             * overhead
 +             */
 +            if(!strcmp(oc->oformat->name, "avi")) {
 +                if ( copy_tb<0 && av_q2d(ist->st->r_frame_rate) >= av_q2d(ist->st->avg_frame_rate)
 +                               && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(ist->st->time_base)
 +                               && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(icodec->time_base)
 +                               && av_q2d(ist->st->time_base) < 1.0/500 && av_q2d(icodec->time_base) < 1.0/500
 +                     || copy_tb==2){
 +                    codec->time_base.num = ist->st->r_frame_rate.den;
 +                    codec->time_base.den = 2*ist->st->r_frame_rate.num;
 +                    codec->ticks_per_frame = 2;
 +                } else if (   copy_tb<0 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > 2*av_q2d(ist->st->time_base)
 +                                 && av_q2d(ist->st->time_base) < 1.0/500
 +                    || copy_tb==0){
 +                    codec->time_base = icodec->time_base;
 +                    codec->time_base.num *= icodec->ticks_per_frame;
 +                    codec->time_base.den *= 2;
 +                    codec->ticks_per_frame = 2;
 +                }
 +            } else if(!(oc->oformat->flags & AVFMT_VARIABLE_FPS)
 +                      && strcmp(oc->oformat->name, "mov") && strcmp(oc->oformat->name, "mp4") && strcmp(oc->oformat->name, "3gp")
 +                      && strcmp(oc->oformat->name, "3g2") && strcmp(oc->oformat->name, "psp") && strcmp(oc->oformat->name, "ipod")
 +                      && strcmp(oc->oformat->name, "f4v")
 +            ) {
 +                if(   copy_tb<0 && icodec->time_base.den
 +                                && av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base)
 +                                && av_q2d(ist->st->time_base) < 1.0/500
 +                   || copy_tb==0){
 +                    codec->time_base = icodec->time_base;
 +                    codec->time_base.num *= icodec->ticks_per_frame;
 +                }
 +            }
 +
 +            if(ost->frame_rate.num)
 +                codec->time_base = av_inv_q(ost->frame_rate);
 +
 +            av_reduce(&codec->time_base.num, &codec->time_base.den,
 +                        codec->time_base.num, codec->time_base.den, INT_MAX);
 +
 +            switch (codec->codec_type) {
 +            case AVMEDIA_TYPE_AUDIO:
 +                if (audio_volume != 256) {
 +                    av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
-                             exit_program(1);
++                    exit(1);
 +                }
 +                codec->channel_layout     = icodec->channel_layout;
 +                codec->sample_rate        = icodec->sample_rate;
 +                codec->channels           = icodec->channels;
 +                codec->frame_size         = icodec->frame_size;
 +                codec->audio_service_type = icodec->audio_service_type;
 +                codec->block_align        = icodec->block_align;
 +                if((codec->block_align == 1 || codec->block_align == 1152) && codec->codec_id == AV_CODEC_ID_MP3)
 +                    codec->block_align= 0;
 +                if(codec->codec_id == AV_CODEC_ID_AC3)
 +                    codec->block_align= 0;
 +                break;
 +            case AVMEDIA_TYPE_VIDEO:
 +                codec->pix_fmt            = icodec->pix_fmt;
 +                codec->width              = icodec->width;
 +                codec->height             = icodec->height;
 +                codec->has_b_frames       = icodec->has_b_frames;
 +                if (!codec->sample_aspect_ratio.num) {
 +                    codec->sample_aspect_ratio   =
 +                    ost->st->sample_aspect_ratio =
 +                        ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
 +                        ist->st->codec->sample_aspect_ratio.num ?
 +                        ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
 +                }
 +                ost->st->avg_frame_rate = ist->st->avg_frame_rate;
 +                break;
 +            case AVMEDIA_TYPE_SUBTITLE:
 +                codec->width  = icodec->width;
 +                codec->height = icodec->height;
 +                break;
 +            case AVMEDIA_TYPE_DATA:
 +            case AVMEDIA_TYPE_ATTACHMENT:
 +                break;
 +            default:
 +                abort();
 +            }
 +        } else {
 +            if (!ost->enc)
 +                ost->enc = avcodec_find_encoder(codec->codec_id);
 +            if (!ost->enc) {
 +                /* should only happen when a default codec is not present. */
 +                snprintf(error, sizeof(error), "Encoder (codec %s) not found for output stream #%d:%d",
 +                         avcodec_get_name(ost->st->codec->codec_id), ost->file_index, ost->index);
 +                ret = AVERROR(EINVAL);
 +                goto dump_format;
 +            }
 +
 +            if (ist)
 +                ist->decoding_needed++;
 +            ost->encoding_needed = 1;
 +
 +            if (!ost->filter &&
 +                (codec->codec_type == AVMEDIA_TYPE_VIDEO ||
 +                 codec->codec_type == AVMEDIA_TYPE_AUDIO)) {
 +                    FilterGraph *fg;
 +                    fg = init_simple_filtergraph(ist, ost);
 +                    if (configure_filtergraph(fg)) {
 +                        av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
 +                        exit(1);
 +                    }
 +            }
 +
 +            if (codec->codec_type == AVMEDIA_TYPE_VIDEO) {
 +                if (ost->filter && !ost->frame_rate.num)
 +                    ost->frame_rate = av_buffersink_get_frame_rate(ost->filter->filter);
 +                if (ist && !ost->frame_rate.num)
 +                    ost->frame_rate = ist->framerate;
 +                if (ist && !ost->frame_rate.num)
 +                    ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25, 1};
 +//                    ost->frame_rate = ist->st->avg_frame_rate.num ? ist->st->avg_frame_rate : (AVRational){25, 1};
 +                if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
 +                    int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
 +                    ost->frame_rate = ost->enc->supported_framerates[idx];
 +                }
 +            }
 +
 +            switch (codec->codec_type) {
 +            case AVMEDIA_TYPE_AUDIO:
 +                codec->sample_fmt     = ost->filter->filter->inputs[0]->format;
 +                codec->sample_rate    = ost->filter->filter->inputs[0]->sample_rate;
 +                codec->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
 +                codec->channels       = av_get_channel_layout_nb_channels(codec->channel_layout);
 +                codec->time_base      = (AVRational){ 1, codec->sample_rate };
 +                break;
 +            case AVMEDIA_TYPE_VIDEO:
 +                codec->time_base = av_inv_q(ost->frame_rate);
 +                if (ost->filter && !(codec->time_base.num && codec->time_base.den))
 +                    codec->time_base = ost->filter->filter->inputs[0]->time_base;
 +                if (   av_q2d(codec->time_base) < 0.001 && video_sync_method != VSYNC_PASSTHROUGH
 +                   && (video_sync_method == VSYNC_CFR || (video_sync_method == VSYNC_AUTO && !(oc->oformat->flags & AVFMT_VARIABLE_FPS)))){
 +                    av_log(oc, AV_LOG_WARNING, "Frame rate very high for a muxer not efficiently supporting it.\n"
 +                                               "Please consider specifying a lower framerate, a different muxer or -vsync 2\n");
 +                }
 +                for (j = 0; j < ost->forced_kf_count; j++)
 +                    ost->forced_kf_pts[j] = av_rescale_q(ost->forced_kf_pts[j],
 +                                                         AV_TIME_BASE_Q,
 +                                                         codec->time_base);
 +
 +                codec->width  = ost->filter->filter->inputs[0]->w;
 +                codec->height = ost->filter->filter->inputs[0]->h;
 +                codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
 +                    ost->frame_aspect_ratio ? // overridden by the -aspect cli option
 +                    av_d2q(ost->frame_aspect_ratio * codec->height/codec->width, 255) :
 +                    ost->filter->filter->inputs[0]->sample_aspect_ratio;
 +                codec->pix_fmt = ost->filter->filter->inputs[0]->format;
 +
 +                if (!icodec ||
 +                    codec->width   != icodec->width  ||
 +                    codec->height  != icodec->height ||
 +                    codec->pix_fmt != icodec->pix_fmt) {
 +                    codec->bits_per_raw_sample = frame_bits_per_raw_sample;
 +                }
 +
 +                if (ost->forced_keyframes)
 +                    parse_forced_key_frames(ost->forced_keyframes, ost,
 +                                            ost->st->codec);
 +                break;
 +            case AVMEDIA_TYPE_SUBTITLE:
 +                codec->time_base = (AVRational){1, 1000};
 +                if (!codec->width) {
 +                    codec->width     = input_streams[ost->source_index]->st->codec->width;
 +                    codec->height    = input_streams[ost->source_index]->st->codec->height;
 +                }
 +                break;
 +            default:
 +                abort();
 +                break;
 +            }
 +            /* two pass mode */
 +            if (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2)) {
 +                char logfilename[1024];
 +                FILE *f;
 +
 +                snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
 +                         ost->logfile_prefix ? ost->logfile_prefix :
 +                                               DEFAULT_PASS_LOGFILENAME_PREFIX,
 +                         i);
 +                if (!strcmp(ost->enc->name, "libx264")) {
 +                    av_dict_set(&ost->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
 +                } else {
 +                    if (codec->flags & CODEC_FLAG_PASS2) {
 +                        char  *logbuffer;
 +                        size_t logbuffer_size;
 +                        if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
 +                            av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
 +                                   logfilename);
-                             exit_program(1);
++                            exit(1);
 +                        }
 +                        codec->stats_in = logbuffer;
 +                    }
 +                    if (codec->flags & CODEC_FLAG_PASS1) {
 +                        f = fopen(logfilename, "wb");
 +                        if (!f) {
 +                            av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
 +                                logfilename, strerror(errno));
-                 exit_program(1);
++                            exit(1);
 +                        }
 +                        ost->logfile = f;
 +                    }
 +                }
 +            }
 +        }
 +    }
 +
 +    /* open each encoder */
 +    for (i = 0; i < nb_output_streams; i++) {
 +        ost = output_streams[i];
 +        if (ost->encoding_needed) {
 +            AVCodec      *codec = ost->enc;
 +            AVCodecContext *dec = NULL;
 +
 +            if ((ist = get_input_stream(ost)))
 +                dec = ist->st->codec;
 +            if (dec && dec->subtitle_header) {
 +                /* ASS code assumes this buffer is null terminated so add extra byte. */
 +                ost->st->codec->subtitle_header = av_mallocz(dec->subtitle_header_size + 1);
 +                if (!ost->st->codec->subtitle_header) {
 +                    ret = AVERROR(ENOMEM);
 +                    goto dump_format;
 +                }
 +                memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
 +                ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
 +            }
 +            if (!av_dict_get(ost->opts, "threads", NULL, 0))
 +                av_dict_set(&ost->opts, "threads", "auto", 0);
 +            if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
 +                snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
 +                        ost->file_index, ost->index);
 +                ret = AVERROR(EINVAL);
 +                goto dump_format;
 +            }
 +            if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
 +                !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
 +                av_buffersink_set_frame_size(ost->filter->filter,
 +                                             ost->st->codec->frame_size);
 +            assert_codec_experimental(ost->st->codec, 1);
 +            assert_avoptions(ost->opts);
 +            if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
 +                av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
 +                                             " It takes bits/s as argument, not kbits/s\n");
 +            extra_size += ost->st->codec->extradata_size;
 +
 +            if (ost->st->codec->me_threshold)
 +                input_streams[ost->source_index]->st->codec->debug |= FF_DEBUG_MV;
 +        }
 +    }
 +
 +    /* init input streams */
 +    for (i = 0; i < nb_input_streams; i++)
 +        if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
 +            goto dump_format;
 +
 +    /* discard unused programs */
 +    for (i = 0; i < nb_input_files; i++) {
 +        InputFile *ifile = input_files[i];
 +        for (j = 0; j < ifile->ctx->nb_programs; j++) {
 +            AVProgram *p = ifile->ctx->programs[j];
 +            int discard  = AVDISCARD_ALL;
 +
 +            for (k = 0; k < p->nb_stream_indexes; k++)
 +                if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
 +                    discard = AVDISCARD_DEFAULT;
 +                    break;
 +                }
 +            p->discard = discard;
 +        }
 +    }
 +
 +    /* open files and write file headers */
 +    for (i = 0; i < nb_output_files; i++) {
 +        oc = output_files[i]->ctx;
 +        oc->interrupt_callback = int_cb;
 +        if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
 +            char errbuf[128];
 +            const char *errbuf_ptr = errbuf;
 +            if (av_strerror(ret, errbuf, sizeof(errbuf)) < 0)
 +                errbuf_ptr = strerror(AVUNERROR(ret));
 +            snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?): %s", i, errbuf_ptr);
 +            ret = AVERROR(EINVAL);
 +            goto dump_format;
 +        }
 +//         assert_avoptions(output_files[i]->opts);
 +        if (strcmp(oc->oformat->name, "rtp")) {
 +            want_sdp = 0;
 +        }
 +    }
 +
 + dump_format:
 +    /* dump the file output parameters - cannot be done before in case
 +       of stream copy */
 +    for (i = 0; i < nb_output_files; i++) {
 +        av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
 +    }
 +
 +    /* dump the stream mapping */
 +    av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
 +    for (i = 0; i < nb_input_streams; i++) {
 +        ist = input_streams[i];
 +
 +        for (j = 0; j < ist->nb_filters; j++) {
 +            if (ist->filters[j]->graph->graph_desc) {
 +                av_log(NULL, AV_LOG_INFO, "  Stream #%d:%d (%s) -> %s",
 +                       ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
 +                       ist->filters[j]->name);
 +                if (nb_filtergraphs > 1)
 +                    av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
 +                av_log(NULL, AV_LOG_INFO, "\n");
 +            }
 +        }
 +    }
 +
 +    for (i = 0; i < nb_output_streams; i++) {
 +        ost = output_streams[i];
 +
 +        if (ost->attachment_filename) {
 +            /* an attached file */
 +            av_log(NULL, AV_LOG_INFO, "  File %s -> Stream #%d:%d\n",
 +                   ost->attachment_filename, ost->file_index, ost->index);
 +            continue;
 +        }
 +
 +        if (ost->filter && ost->filter->graph->graph_desc) {
 +            /* output from a complex graph */
 +            av_log(NULL, AV_LOG_INFO, "  %s", ost->filter->name);
 +            if (nb_filtergraphs > 1)
 +                av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
 +
 +            av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
 +                   ost->index, ost->enc ? ost->enc->name : "?");
 +            continue;
 +        }
 +
 +        av_log(NULL, AV_LOG_INFO, "  Stream #%d:%d -> #%d:%d",
 +               input_streams[ost->source_index]->file_index,
 +               input_streams[ost->source_index]->st->index,
 +               ost->file_index,
 +               ost->index);
 +        if (ost->sync_ist != input_streams[ost->source_index])
 +            av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
 +                   ost->sync_ist->file_index,
 +                   ost->sync_ist->st->index);
 +        if (ost->stream_copy)
 +            av_log(NULL, AV_LOG_INFO, " (copy)");
 +        else
 +            av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ?
 +                   input_streams[ost->source_index]->dec->name : "?",
 +                   ost->enc ? ost->enc->name : "?");
 +        av_log(NULL, AV_LOG_INFO, "\n");
 +    }
 +
 +    if (ret) {
 +        av_log(NULL, AV_LOG_ERROR, "%s\n", error);
 +        return ret;
 +    }
 +
 +    if (want_sdp) {
 +        print_sdp();
 +    }
 +
 +    return 0;
 +}
 +
 +/**
 + * @return 1 if there are still streams where more output is wanted,
 + *         0 otherwise
 + */
 +static int need_output(void)
 +{
 +    int i;
 +
 +    for (i = 0; i < nb_output_streams; i++) {
 +        OutputStream *ost    = output_streams[i];
 +        OutputFile *of       = output_files[ost->file_index];
 +        AVFormatContext *os  = output_files[ost->file_index]->ctx;
 +
 +        if (ost->finished ||
 +            (os->pb && avio_tell(os->pb) >= of->limit_filesize))
 +            continue;
 +        if (ost->frame_number >= ost->max_frames) {
 +            int j;
 +            for (j = 0; j < of->ctx->nb_streams; j++)
 +                close_output_stream(output_streams[of->ost_index + j]);
 +            continue;
 +        }
 +
 +        return 1;
 +    }
 +
 +    return 0;
 +}
 +
 +/**
 + * Select the output stream to process.
 + *
 + * @return  selected output stream, or NULL if none available
 + */
 +static OutputStream *choose_output(void)
 +{
 +    int i;
 +    int64_t opts_min = INT64_MAX;
 +    OutputStream *ost_min = NULL;
 +
 +    for (i = 0; i < nb_output_streams; i++) {
 +        OutputStream *ost = output_streams[i];
 +        int64_t opts = av_rescale_q(ost->st->cur_dts, ost->st->time_base,
 +                                    AV_TIME_BASE_Q);
 +        if (!ost->unavailable && !ost->finished && opts < opts_min) {
 +            opts_min = opts;
 +            ost_min  = ost;
 +        }
 +    }
 +    return ost_min;
 +}
 +
 +static int check_keyboard_interaction(int64_t cur_time)
 +{
 +    int i, ret, key;
 +    static int64_t last_time;
 +    if (received_nb_signals)
 +        return AVERROR_EXIT;
 +    /* read_key() returns 0 on EOF */
 +    if(cur_time - last_time >= 100000 && !run_as_daemon){
 +        key =  read_key();
 +        last_time = cur_time;
 +    }else
 +        key = -1;
 +    if (key == 'q')
 +        return AVERROR_EXIT;
 +    if (key == '+') av_log_set_level(av_log_get_level()+10);
 +    if (key == '-') av_log_set_level(av_log_get_level()-10);
 +    if (key == 's') qp_hist     ^= 1;
 +    if (key == 'h'){
 +        if (do_hex_dump){
 +            do_hex_dump = do_pkt_dump = 0;
 +        } else if(do_pkt_dump){
 +            do_hex_dump = 1;
 +        } else
 +            do_pkt_dump = 1;
 +        av_log_set_level(AV_LOG_DEBUG);
 +    }
 +    if (key == 'c' || key == 'C'){
 +        char buf[4096], target[64], command[256], arg[256] = {0};
 +        double time;
 +        int k, n = 0;
 +        fprintf(stderr, "\nEnter command: <target> <time> <command>[ <argument>]\n");
 +        i = 0;
 +        while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1)
 +            if (k > 0)
 +                buf[i++] = k;
 +        buf[i] = 0;
 +        if (k > 0 &&
 +            (n = sscanf(buf, "%63[^ ] %lf %255[^ ] %255[^\n]", target, &time, command, arg)) >= 3) {
 +            av_log(NULL, AV_LOG_DEBUG, "Processing command target:%s time:%f command:%s arg:%s",
 +                   target, time, command, arg);
 +            for (i = 0; i < nb_filtergraphs; i++) {
 +                FilterGraph *fg = filtergraphs[i];
 +                if (fg->graph) {
 +                    if (time < 0) {
 +                        ret = avfilter_graph_send_command(fg->graph, target, command, arg, buf, sizeof(buf),
 +                                                          key == 'c' ? AVFILTER_CMD_FLAG_ONE : 0);
 +                        fprintf(stderr, "Command reply for stream %d: ret:%d res:%s\n", i, ret, buf);
 +                    } else {
 +                        ret = avfilter_graph_queue_command(fg->graph, target, command, arg, 0, time);
 +                    }
 +                }
 +            }
 +        } else {
 +            av_log(NULL, AV_LOG_ERROR,
 +                   "Parse error, at least 3 arguments were expected, "
 +                   "only %d given in string '%s'\n", n, buf);
 +        }
 +    }
 +    if (key == 'd' || key == 'D'){
 +        int debug=0;
 +        if(key == 'D') {
 +            debug = input_streams[0]->st->codec->debug<<1;
 +            if(!debug) debug = 1;
 +            while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
 +                debug += debug;
 +        }else
 +            if(scanf("%d", &debug)!=1)
 +                fprintf(stderr,"error parsing debug value\n");
 +        for(i=0;i<nb_input_streams;i++) {
 +            input_streams[i]->st->codec->debug = debug;
 +        }
 +        for(i=0;i<nb_output_streams;i++) {
 +            OutputStream *ost = output_streams[i];
 +            ost->st->codec->debug = debug;
 +        }
 +        if(debug) av_log_set_level(AV_LOG_DEBUG);
 +        fprintf(stderr,"debug=%d\n", debug);
 +    }
 +    if (key == '?'){
 +        fprintf(stderr, "key    function\n"
 +                        "?      show this help\n"
 +                        "+      increase verbosity\n"
 +                        "-      decrease verbosity\n"
 +                        "c      Send command to filtergraph\n"
 +                        "D      cycle through available debug modes\n"
 +                        "h      dump packets/hex press to cycle through the 3 states\n"
 +                        "q      quit\n"
 +                        "s      Show QP histogram\n"
 +        );
 +    }
 +    return 0;
 +}
 +
 +#if HAVE_PTHREADS
 +static void *input_thread(void *arg)
 +{
 +    InputFile *f = arg;
 +    int ret = 0;
 +
 +    while (!transcoding_finished && ret >= 0) {
 +        AVPacket pkt;
 +        ret = av_read_frame(f->ctx, &pkt);
 +
 +        if (ret == AVERROR(EAGAIN)) {
 +            av_usleep(10000);
 +            ret = 0;
 +            continue;
 +        } else if (ret < 0)
 +            break;
 +
 +        pthread_mutex_lock(&f->fifo_lock);
 +        while (!av_fifo_space(f->fifo))
 +            pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
 +
 +        av_dup_packet(&pkt);
 +        av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
 +
 +        pthread_mutex_unlock(&f->fifo_lock);
 +    }
 +
 +    f->finished = 1;
 +    return NULL;
 +}
 +
 +static void free_input_threads(void)
 +{
 +    int i;
 +
 +    if (nb_input_files == 1)
 +        return;
 +
 +    transcoding_finished = 1;
 +
 +    for (i = 0; i < nb_input_files; i++) {
 +        InputFile *f = input_files[i];
 +        AVPacket pkt;
 +
 +        if (!f->fifo || f->joined)
 +            continue;
 +
 +        pthread_mutex_lock(&f->fifo_lock);
 +        while (av_fifo_size(f->fifo)) {
 +            av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
 +            av_free_packet(&pkt);
 +        }
 +        pthread_cond_signal(&f->fifo_cond);
 +        pthread_mutex_unlock(&f->fifo_lock);
 +
 +        pthread_join(f->thread, NULL);
 +        f->joined = 1;
 +
 +        while (av_fifo_size(f->fifo)) {
 +            av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
 +            av_free_packet(&pkt);
 +        }
 +        av_fifo_free(f->fifo);
 +    }
 +}
 +
 +static int init_input_threads(void)
 +{
 +    int i, ret;
 +
 +    if (nb_input_files == 1)
 +        return 0;
 +
 +    for (i = 0; i < nb_input_files; i++) {
 +        InputFile *f = input_files[i];
 +
 +        if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
 +            return AVERROR(ENOMEM);
 +
 +        pthread_mutex_init(&f->fifo_lock, NULL);
 +        pthread_cond_init (&f->fifo_cond, NULL);
 +
 +        if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
 +            return AVERROR(ret);
 +    }
 +    return 0;
 +}
 +
 +static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
 +{
 +    int ret = 0;
 +
 +    pthread_mutex_lock(&f->fifo_lock);
 +
 +    if (av_fifo_size(f->fifo)) {
 +        av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
 +        pthread_cond_signal(&f->fifo_cond);
 +    } else {
 +        if (f->finished)
 +            ret = AVERROR_EOF;
 +        else
 +            ret = AVERROR(EAGAIN);
 +    }
 +
 +    pthread_mutex_unlock(&f->fifo_lock);
 +
 +    return ret;
 +}
 +#endif
 +
 +static int get_input_packet(InputFile *f, AVPacket *pkt)
 +{
 +#if HAVE_PTHREADS
 +    if (nb_input_files > 1)
 +        return get_input_packet_mt(f, pkt);
 +#endif
 +    return av_read_frame(f->ctx, pkt);
 +}
 +
 +static int got_eagain(void)
 +{
 +    int i;
 +    for (i = 0; i < nb_output_streams; i++)
 +        if (output_streams[i]->unavailable)
 +            return 1;
 +    return 0;
 +}
 +
 +static void reset_eagain(void)
 +{
 +    int i;
 +    for (i = 0; i < nb_input_files; i++)
 +        input_files[i]->eagain = 0;
 +    for (i = 0; i < nb_output_streams; i++)
 +        output_streams[i]->unavailable = 0;
 +}
 +
 +/**
 + * @return
 + * - 0 -- one packet was read and processed
 + * - AVERROR(EAGAIN) -- no packets were available for selected file,
 + *   this function should be called again
 + * - AVERROR_EOF -- this function should not be called again
 + */
 +static int process_input(int file_index)
 +{
 +    InputFile *ifile = input_files[file_index];
 +    AVFormatContext *is;
 +    InputStream *ist;
 +    AVPacket pkt;
 +    int ret, i, j;
 +
 +    is  = ifile->ctx;
 +    ret = get_input_packet(ifile, &pkt);
 +
 +    if (ret == AVERROR(EAGAIN)) {
 +        ifile->eagain = 1;
 +        return ret;
 +    }
 +    if (ret < 0) {
 +        if (ret != AVERROR_EOF) {
 +            print_error(is->filename, ret);
 +            if (exit_on_error)
-             exit_program(1);
++                exit(1);
 +        }
 +        ifile->eof_reached = 1;
 +
 +        for (i = 0; i < ifile->nb_streams; i++) {
 +            ist = input_streams[ifile->ist_index + i];
 +            if (ist->decoding_needed)
 +                output_packet(ist, NULL);
 +
 +            /* mark all outputs that don't go through lavfi as finished */
 +            for (j = 0; j < nb_output_streams; j++) {
 +                OutputStream *ost = output_streams[j];
 +
 +                if (ost->source_index == ifile->ist_index + i &&
 +                    (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
 +                    close_output_stream(ost);
 +            }
 +        }
 +
 +        return AVERROR(EAGAIN);
 +    }
 +
 +    reset_eagain();
 +
 +    if (do_pkt_dump) {
 +        av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
 +                         is->streams[pkt.stream_index]);
 +    }
 +    /* the following test is needed in case new streams appear
 +       dynamically in stream : we ignore them */
 +    if (pkt.stream_index >= ifile->nb_streams) {
 +        report_new_stream(file_index, &pkt);
 +        goto discard_packet;
 +    }
 +
 +    ist = input_streams[ifile->ist_index + pkt.stream_index];
 +    if (ist->discard)
 +        goto discard_packet;
 +
 +    if(!ist->wrap_correction_done && input_files[file_index]->ctx->start_time != AV_NOPTS_VALUE && ist->st->pts_wrap_bits < 64){
 +        int64_t stime = av_rescale_q(input_files[file_index]->ctx->start_time, AV_TIME_BASE_Q, ist->st->time_base);
 +        int64_t stime2= stime + (1ULL<<ist->st->pts_wrap_bits);
 +        ist->wrap_correction_done = 1;
 +
 +        if(stime2 > stime && pkt.dts != AV_NOPTS_VALUE && pkt.dts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
 +            pkt.dts -= 1ULL<<ist->st->pts_wrap_bits;
 +            ist->wrap_correction_done = 0;
 +        }
 +        if(stime2 > stime && pkt.pts != AV_NOPTS_VALUE && pkt.pts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
 +            pkt.pts -= 1ULL<<ist->st->pts_wrap_bits;
 +            ist->wrap_correction_done = 0;
 +        }
 +    }
 +
 +    if (pkt.dts != AV_NOPTS_VALUE)
 +        pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
 +    if (pkt.pts != AV_NOPTS_VALUE)
 +        pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
 +
 +    if (pkt.pts != AV_NOPTS_VALUE)
 +        pkt.pts *= ist->ts_scale;
 +    if (pkt.dts != AV_NOPTS_VALUE)
 +        pkt.dts *= ist->ts_scale;
 +
 +    if (debug_ts) {
 +        av_log(NULL, AV_LOG_INFO, "demuxer -> ist_index:%d type:%s "
 +                "next_dts:%s next_dts_time:%s next_pts:%s next_pts_time:%s  pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s off:%"PRId64"\n",
 +                ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->st->codec->codec_type),
 +                av_ts2str(ist->next_dts), av_ts2timestr(ist->next_dts, &AV_TIME_BASE_Q),
 +                av_ts2str(ist->next_pts), av_ts2timestr(ist->next_pts, &AV_TIME_BASE_Q),
 +                av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
 +                av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
 +                input_files[ist->file_index]->ts_offset);
 +    }
 +
 +    if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
 +        !copy_ts) {
 +        int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
 +        int64_t delta   = pkt_dts - ist->next_dts;
 +        if (is->iformat->flags & AVFMT_TS_DISCONT) {
 +        if(delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
 +            (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
 +                ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) ||
 +            pkt_dts+1<ist->pts){
 +            ifile->ts_offset -= delta;
 +            av_log(NULL, AV_LOG_DEBUG,
 +                   "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
 +                   delta, ifile->ts_offset);
 +            pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
 +            if (pkt.pts != AV_NOPTS_VALUE)
 +                pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
 +        }
 +        } else {
 +            if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
 +                (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)
 +               ) {
 +                av_log(NULL, AV_LOG_WARNING, "DTS %"PRId64", next:%"PRId64" st:%d invalid dropping\n", pkt.dts, ist->next_dts, pkt.stream_index);
 +                pkt.dts = AV_NOPTS_VALUE;
 +            }
 +            if (pkt.pts != AV_NOPTS_VALUE){
 +                int64_t pkt_pts = av_rescale_q(pkt.pts, ist->st->time_base, AV_TIME_BASE_Q);
 +                delta   = pkt_pts - ist->next_dts;
 +                if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
 +                    (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)
 +                   ) {
 +                    av_log(NULL, AV_LOG_WARNING, "PTS %"PRId64", next:%"PRId64" invalid dropping st:%d\n", pkt.pts, ist->next_dts, pkt.stream_index);
 +                    pkt.pts = AV_NOPTS_VALUE;
 +                }
 +            }
 +        }
 +    }
 +
 +    sub2video_heartbeat(ist, pkt.pts);
 +
 +    ret = output_packet(ist, &pkt);
 +    if (ret < 0) {
 +        char buf[128];
 +        av_strerror(ret, buf, sizeof(buf));
 +        av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d: %s\n",
 +                ist->file_index, ist->st->index, buf);
 +        if (exit_on_error)
-         exit_program(1);
++            exit(1);
 +    }
 +
 +discard_packet:
 +    av_free_packet(&pkt);
 +
 +    return 0;
 +}
 +
 +/**
 + * Perform a step of transcoding for the specified filter graph.
 + *
 + * @param[in]  graph     filter graph to consider
 + * @param[out] best_ist  input stream where a frame would allow to continue
 + * @return  0 for success, <0 for error
 + */
 +static int transcode_from_filter(FilterGraph *graph, InputStream **best_ist)
 +{
 +    int i, ret;
 +    int nb_requests, nb_requests_max = 0;
 +    InputFilter *ifilter;
 +    InputStream *ist;
 +
 +    *best_ist = NULL;
 +    ret = avfilter_graph_request_oldest(graph->graph);
 +    if (ret >= 0)
 +        return reap_filters();
 +
 +    if (ret == AVERROR_EOF) {
 +        ret = reap_filters();
 +        for (i = 0; i < graph->nb_outputs; i++)
 +            close_output_stream(graph->outputs[i]->ost);
 +        return ret;
 +    }
 +    if (ret != AVERROR(EAGAIN))
 +        return ret;
 +
 +    for (i = 0; i < graph->nb_inputs; i++) {
 +        ifilter = graph->inputs[i];
 +        ist = ifilter->ist;
 +        if (input_files[ist->file_index]->eagain ||
 +            input_files[ist->file_index]->eof_reached)
 +            continue;
 +        nb_requests = av_buffersrc_get_nb_failed_requests(ifilter->filter);
 +        if (nb_requests > nb_requests_max) {
 +            nb_requests_max = nb_requests;
 +            *best_ist = ist;
 +        }
 +    }
 +
 +    if (!*best_ist)
 +        for (i = 0; i < graph->nb_outputs; i++)
 +            graph->outputs[i]->ost->unavailable = 1;
 +
 +    return 0;
 +}
 +
 +/**
 + * Run a single step of transcoding.
 + *
 + * @return  0 for success, <0 for error
 + */
 +static int transcode_step(void)
 +{
 +    OutputStream *ost;
 +    InputStream  *ist;
 +    int ret;
 +
 +    ost = choose_output();
 +    if (!ost) {
 +        if (got_eagain()) {
 +            reset_eagain();
 +            av_usleep(10000);
 +            return 0;
 +        }
 +        av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishing.\n");
 +        return AVERROR_EOF;
 +    }
 +
 +    if (ost->filter) {
 +        if ((ret = transcode_from_filter(ost->filter->graph, &ist)) < 0)
 +            return ret;
 +        if (!ist)
 +            return 0;
 +    } else {
 +        av_assert0(ost->source_index >= 0);
 +        ist = input_streams[ost->source_index];
 +    }
 +
 +    ret = process_input(ist->file_index);
 +    if (ret == AVERROR(EAGAIN)) {
 +        if (input_files[ist->file_index]->eagain)
 +            ost->unavailable = 1;
 +        return 0;
 +    }
 +    if (ret < 0)
 +        return ret == AVERROR_EOF ? 0 : ret;
 +
 +    return reap_filters();
 +}
 +
 +/*
 + * The following code is the main loop of the file converter
 + */
 +static int transcode(void)
 +{
 +    int ret, i;
 +    AVFormatContext *os;
 +    OutputStream *ost;
 +    InputStream *ist;
 +    int64_t timer_start;
 +
 +    ret = transcode_init();
 +    if (ret < 0)
 +        goto fail;
 +
 +    if (stdin_interaction) {
 +        av_log(NULL, AV_LOG_INFO, "Press [q] to stop, [?] for help\n");
 +    }
 +
 +    timer_start = av_gettime();
 +
 +#if HAVE_PTHREADS
 +    if ((ret = init_input_threads()) < 0)
 +        goto fail;
 +#endif
 +
 +    while (!received_sigterm) {
 +        int64_t cur_time= av_gettime();
 +
 +        /* if 'q' pressed, exits */
 +        if (stdin_interaction)
 +            if (check_keyboard_interaction(cur_time) < 0)
 +                break;
 +
 +        /* check if there's any stream where output is still needed */
 +        if (!need_output()) {
 +            av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
 +            break;
 +        }
 +
 +        ret = transcode_step();
 +        if (ret < 0) {
 +            if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
 +                continue;
 +
 +            av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
 +            break;
 +        }
 +
 +        /* dump report by using the output first video and audio streams */
 +        print_report(0, timer_start, cur_time);
 +    }
 +#if HAVE_PTHREADS
 +    free_input_threads();
 +#endif
 +
 +    /* at the end of stream, we must flush the decoder buffers */
 +    for (i = 0; i < nb_input_streams; i++) {
 +        ist = input_streams[i];
 +        if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
 +            output_packet(ist, NULL);
 +        }
 +    }
 +    flush_encoders();
 +
 +    term_exit();
 +
 +    /* write the trailer if needed and close file */
 +    for (i = 0; i < nb_output_files; i++) {
 +        os = output_files[i]->ctx;
 +        av_write_trailer(os);
 +    }
 +
 +    /* dump report by using the first video and audio streams */
 +    print_report(1, timer_start, av_gettime());
 +
 +    /* close each encoder */
 +    for (i = 0; i < nb_output_streams; i++) {
 +        ost = output_streams[i];
 +        if (ost->encoding_needed) {
 +            av_freep(&ost->st->codec->stats_in);
 +            avcodec_close(ost->st->codec);
 +        }
 +    }
 +
 +    /* close each decoder */
 +    for (i = 0; i < nb_input_streams; i++) {
 +        ist = input_streams[i];
 +        if (ist->decoding_needed) {
 +            avcodec_close(ist->st->codec);
 +        }
 +    }
 +
 +    /* finished ! */
 +    ret = 0;
 +
 + fail:
 +#if HAVE_PTHREADS
 +    free_input_threads();
 +#endif
 +
 +    if (output_streams) {
 +        for (i = 0; i < nb_output_streams; i++) {
 +            ost = output_streams[i];
 +            if (ost) {
 +                if (ost->stream_copy)
 +                    av_freep(&ost->st->codec->extradata);
 +                if (ost->logfile) {
 +                    fclose(ost->logfile);
 +                    ost->logfile = NULL;
 +                }
 +                av_freep(&ost->st->codec->subtitle_header);
 +                av_free(ost->forced_kf_pts);
 +                av_dict_free(&ost->opts);
 +            }
 +        }
 +    }
 +    return ret;
 +}
 +
 +
 +static int64_t getutime(void)
 +{
 +#if HAVE_GETRUSAGE
 +    struct rusage rusage;
 +
 +    getrusage(RUSAGE_SELF, &rusage);
 +    return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
 +#elif HAVE_GETPROCESSTIMES
 +    HANDLE proc;
 +    FILETIME c, e, k, u;
 +    proc = GetCurrentProcess();
 +    GetProcessTimes(proc, &c, &e, &k, &u);
 +    return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
 +#else
 +    return av_gettime();
 +#endif
 +}
 +
 +static int64_t getmaxrss(void)
 +{
 +#if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
 +    struct rusage rusage;
 +    getrusage(RUSAGE_SELF, &rusage);
 +    return (int64_t)rusage.ru_maxrss * 1024;
 +#elif HAVE_GETPROCESSMEMORYINFO
 +    HANDLE proc;
 +    PROCESS_MEMORY_COUNTERS memcounters;
 +    proc = GetCurrentProcess();
 +    memcounters.cb = sizeof(memcounters);
 +    GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
 +    return memcounters.PeakPagefileUsage;
 +#else
 +    return 0;
 +#endif
 +}
 +
 +static void log_callback_null(void *ptr, int level, const char *fmt, va_list vl)
 +{
 +}
 +
 +static void parse_cpuflags(int argc, char **argv, const OptionDef *options)
 +{
 +    int idx = locate_option(argc, argv, options, "cpuflags");
 +    if (idx && argv[idx + 1])
 +        opt_cpuflags(NULL, "cpuflags", argv[idx + 1]);
 +}
 +
 +int main(int argc, char **argv)
 +{
 +    OptionsContext o = { 0 };
 +    int64_t ti;
 +
++    atexit(exit_program);
++
 +    reset_options(&o, 0);
 +
 +    setvbuf(stderr,NULL,_IONBF,0); /* win32 runtime needs this */
 +
 +    av_log_set_flags(AV_LOG_SKIP_REPEATED);
 +    parse_loglevel(argc, argv, options);
 +
 +    if(argc>1 && !strcmp(argv[1], "-d")){
 +        run_as_daemon=1;
 +        av_log_set_callback(log_callback_null);
 +        argc--;
 +        argv++;
 +    }
 +
 +    avcodec_register_all();
 +#if CONFIG_AVDEVICE
 +    avdevice_register_all();
 +#endif
 +    avfilter_register_all();
 +    av_register_all();
 +    avformat_network_init();
 +
 +    show_banner(argc, argv, options);
 +
 +    term_init();
 +
 +    parse_cpuflags(argc, argv, options);
 +
 +    /* parse options */
 +    parse_options(&o, argc, argv, options, opt_output_file);
 +
 +    if (nb_output_files <= 0 && nb_input_files == 0) {
 +        show_usage();
 +        av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
-         exit_program(1);
++        exit(1);
 +    }
 +
 +    /* file converter / grab */
 +    if (nb_output_files <= 0) {
 +        av_log(NULL, AV_LOG_FATAL, "At least one output file must be specified\n");
- //         exit_program(1);
++        exit(1);
 +    }
 +
 +//     if (nb_input_files == 0) {
 +//         av_log(NULL, AV_LOG_FATAL, "At least one input file must be specified\n");
-         exit_program(1);
++//         exit(1);
 +//     }
 +
 +    current_time = ti = getutime();
 +    if (transcode() < 0)
-     exit_program(0);
++        exit(1);
 +    ti = getutime() - ti;
 +    if (do_benchmark) {
 +        int maxrss = getmaxrss() / 1024;
 +        printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);
 +    }
 +
++    exit(0);
 +    return 0;
 +}
diff --cc ffmpeg_filter.c
index 8478edf,0000000..318143d
mode 100644,000000..100644
--- /dev/null
@@@ -1,774 -1,0 +1,774 @@@
-             exit_program(1);
 +/*
 + * ffmpeg filter configuration
 + *
 + * This file is part of FFmpeg.
 + *
 + * FFmpeg is free software; you can redistribute it and/or
 + * modify it under the terms of the GNU Lesser General Public
 + * License as published by the Free Software Foundation; either
 + * version 2.1 of the License, or (at your option) any later version.
 + *
 + * FFmpeg is distributed in the hope that it will be useful,
 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 + * Lesser General Public License for more details.
 + *
 + * You should have received a copy of the GNU Lesser General Public
 + * License along with FFmpeg; if not, write to the Free Software
 + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 + */
 +
 +#include "ffmpeg.h"
 +
 +#include "libavfilter/avfilter.h"
 +#include "libavfilter/avfiltergraph.h"
 +#include "libavfilter/buffersink.h"
 +
 +#include "libavutil/audioconvert.h"
 +#include "libavutil/avassert.h"
 +#include "libavutil/avstring.h"
 +#include "libavutil/bprint.h"
 +#include "libavutil/pixdesc.h"
 +#include "libavutil/pixfmt.h"
 +#include "libavutil/imgutils.h"
 +#include "libavutil/samplefmt.h"
 +
 +enum PixelFormat choose_pixel_fmt(AVStream *st, AVCodec *codec, enum PixelFormat target)
 +{
 +    if (codec && codec->pix_fmts) {
 +        const enum PixelFormat *p = codec->pix_fmts;
 +        int has_alpha= av_pix_fmt_descriptors[target].nb_components % 2 == 0;
 +        enum PixelFormat best= PIX_FMT_NONE;
 +        if (st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL) {
 +            if (st->codec->codec_id == AV_CODEC_ID_MJPEG) {
 +                p = (const enum PixelFormat[]) { PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE };
 +            } else if (st->codec->codec_id == AV_CODEC_ID_LJPEG) {
 +                p = (const enum PixelFormat[]) { PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUVJ444P, PIX_FMT_YUV420P,
 +                                                 PIX_FMT_YUV422P, PIX_FMT_YUV444P, PIX_FMT_BGRA, PIX_FMT_NONE };
 +            }
 +        }
 +        for (; *p != PIX_FMT_NONE; p++) {
 +            best= avcodec_find_best_pix_fmt_of_2(best, *p, target, has_alpha, NULL);
 +            if (*p == target)
 +                break;
 +        }
 +        if (*p == PIX_FMT_NONE) {
 +            if (target != PIX_FMT_NONE)
 +                av_log(NULL, AV_LOG_WARNING,
 +                       "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
 +                       av_pix_fmt_descriptors[target].name,
 +                       codec->name,
 +                       av_pix_fmt_descriptors[best].name);
 +            return best;
 +        }
 +    }
 +    return target;
 +}
 +
 +void choose_sample_fmt(AVStream *st, AVCodec *codec)
 +{
 +    if (codec && codec->sample_fmts) {
 +        const enum AVSampleFormat *p = codec->sample_fmts;
 +        for (; *p != -1; p++) {
 +            if (*p == st->codec->sample_fmt)
 +                break;
 +        }
 +        if (*p == -1) {
 +            if((codec->capabilities & CODEC_CAP_LOSSLESS) && av_get_sample_fmt_name(st->codec->sample_fmt) > av_get_sample_fmt_name(codec->sample_fmts[0]))
 +                av_log(NULL, AV_LOG_ERROR, "Conversion will not be lossless.\n");
 +            if(av_get_sample_fmt_name(st->codec->sample_fmt))
 +            av_log(NULL, AV_LOG_WARNING,
 +                   "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
 +                   av_get_sample_fmt_name(st->codec->sample_fmt),
 +                   codec->name,
 +                   av_get_sample_fmt_name(codec->sample_fmts[0]));
 +            st->codec->sample_fmt = codec->sample_fmts[0];
 +        }
 +    }
 +}
 +
 +static char *choose_pix_fmts(OutputStream *ost)
 +{
 +     if (ost->keep_pix_fmt) {
 +        if (ost->filter)
 +            avfilter_graph_set_auto_convert(ost->filter->graph->graph,
 +                                            AVFILTER_AUTO_CONVERT_NONE);
 +        if (ost->st->codec->pix_fmt == PIX_FMT_NONE)
 +            return NULL;
 +        return av_strdup(av_get_pix_fmt_name(ost->st->codec->pix_fmt));
 +    }
 +    if (ost->st->codec->pix_fmt != PIX_FMT_NONE) {
 +        return av_strdup(av_get_pix_fmt_name(choose_pixel_fmt(ost->st, ost->enc, ost->st->codec->pix_fmt)));
 +    } else if (ost->enc && ost->enc->pix_fmts) {
 +        const enum PixelFormat *p;
 +        AVIOContext *s = NULL;
 +        uint8_t *ret;
 +        int len;
 +
 +        if (avio_open_dyn_buf(&s) < 0)
-             exit_program(1);                                                   \
++            exit(1);
 +
 +        p = ost->enc->pix_fmts;
 +        if (ost->st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL) {
 +            if (ost->st->codec->codec_id == AV_CODEC_ID_MJPEG) {
 +                p = (const enum PixelFormat[]) { PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE };
 +            } else if (ost->st->codec->codec_id == AV_CODEC_ID_LJPEG) {
 +                p = (const enum PixelFormat[]) { PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUVJ444P, PIX_FMT_YUV420P,
 +                                                    PIX_FMT_YUV422P, PIX_FMT_YUV444P, PIX_FMT_BGRA, PIX_FMT_NONE };
 +            }
 +        }
 +
 +        for (; *p != PIX_FMT_NONE; p++) {
 +            const char *name = av_get_pix_fmt_name(*p);
 +            avio_printf(s, "%s:", name);
 +        }
 +        len = avio_close_dyn_buf(s, &ret);
 +        ret[len - 1] = 0;
 +        return ret;
 +    } else
 +        return NULL;
 +}
 +
 +/**
 + * Define a function for building a string containing a list of
 + * allowed formats,
 + */
 +#define DEF_CHOOSE_FORMAT(type, var, supported_list, none, get_name, separator)\
 +static char *choose_ ## var ## s(OutputStream *ost)                            \
 +{                                                                              \
 +    if (ost->st->codec->var != none) {                                         \
 +        get_name(ost->st->codec->var);                                         \
 +        return av_strdup(name);                                                \
 +    } else if (ost->enc->supported_list) {                                     \
 +        const type *p;                                                         \
 +        AVIOContext *s = NULL;                                                 \
 +        uint8_t *ret;                                                          \
 +        int len;                                                               \
 +                                                                               \
 +        if (avio_open_dyn_buf(&s) < 0)                                         \
-         exit_program(1);
++            exit(1);                                                           \
 +                                                                               \
 +        for (p = ost->enc->supported_list; *p != none; p++) {                  \
 +            get_name(*p);                                                      \
 +            avio_printf(s, "%s" separator, name);                              \
 +        }                                                                      \
 +        len = avio_close_dyn_buf(s, &ret);                                     \
 +        ret[len - 1] = 0;                                                      \
 +        return ret;                                                            \
 +    } else                                                                     \
 +        return NULL;                                                           \
 +}
 +
 +// DEF_CHOOSE_FORMAT(enum PixelFormat, pix_fmt, pix_fmts, PIX_FMT_NONE,
 +//                   GET_PIX_FMT_NAME, ":")
 +
 +DEF_CHOOSE_FORMAT(enum AVSampleFormat, sample_fmt, sample_fmts,
 +                  AV_SAMPLE_FMT_NONE, GET_SAMPLE_FMT_NAME, ",")
 +
 +DEF_CHOOSE_FORMAT(int, sample_rate, supported_samplerates, 0,
 +                  GET_SAMPLE_RATE_NAME, ",")
 +
 +DEF_CHOOSE_FORMAT(uint64_t, channel_layout, channel_layouts, 0,
 +                  GET_CH_LAYOUT_NAME, ",")
 +
 +FilterGraph *init_simple_filtergraph(InputStream *ist, OutputStream *ost)
 +{
 +    FilterGraph *fg = av_mallocz(sizeof(*fg));
 +
 +    if (!fg)
-         exit_program(1);
++        exit(1);
 +    fg->index = nb_filtergraphs;
 +
 +    fg->outputs = grow_array(fg->outputs, sizeof(*fg->outputs), &fg->nb_outputs,
 +                             fg->nb_outputs + 1);
 +    if (!(fg->outputs[0] = av_mallocz(sizeof(*fg->outputs[0]))))
-         exit_program(1);
++        exit(1);
 +    fg->outputs[0]->ost   = ost;
 +    fg->outputs[0]->graph = fg;
 +
 +    ost->filter = fg->outputs[0];
 +
 +    fg->inputs = grow_array(fg->inputs, sizeof(*fg->inputs), &fg->nb_inputs,
 +                            fg->nb_inputs + 1);
 +    if (!(fg->inputs[0] = av_mallocz(sizeof(*fg->inputs[0]))))
-         exit_program(1);
++        exit(1);
 +    fg->inputs[0]->ist   = ist;
 +    fg->inputs[0]->graph = fg;
 +
 +    ist->filters = grow_array(ist->filters, sizeof(*ist->filters),
 +                              &ist->nb_filters, ist->nb_filters + 1);
 +    ist->filters[ist->nb_filters - 1] = fg->inputs[0];
 +
 +    filtergraphs = grow_array(filtergraphs, sizeof(*filtergraphs),
 +                              &nb_filtergraphs, nb_filtergraphs + 1);
 +    filtergraphs[nb_filtergraphs - 1] = fg;
 +
 +    return fg;
 +}
 +
 +static void init_input_filter(FilterGraph *fg, AVFilterInOut *in)
 +{
 +    InputStream *ist = NULL;
 +    enum AVMediaType type = avfilter_pad_get_type(in->filter_ctx->input_pads, in->pad_idx);
 +    int i;
 +
 +    // TODO: support other filter types
 +    if (type != AVMEDIA_TYPE_VIDEO && type != AVMEDIA_TYPE_AUDIO) {
 +        av_log(NULL, AV_LOG_FATAL, "Only video and audio filters supported "
 +               "currently.\n");
-             exit_program(1);
++        exit(1);
 +    }
 +
 +    if (in->name) {
 +        AVFormatContext *s;
 +        AVStream       *st = NULL;
 +        char *p;
 +        int file_idx = strtol(in->name, &p, 0);
 +
 +        if (file_idx < 0 || file_idx >= nb_input_files) {
 +            av_log(NULL, AV_LOG_FATAL, "Invalid file index %d in filtergraph description %s.\n",
 +                   file_idx, fg->graph_desc);
-             exit_program(1);
++            exit(1);
 +        }
 +        s = input_files[file_idx]->ctx;
 +
 +        for (i = 0; i < s->nb_streams; i++) {
 +            enum AVMediaType stream_type = s->streams[i]->codec->codec_type;
 +            if (stream_type != type &&
 +                !(stream_type == AVMEDIA_TYPE_SUBTITLE &&
 +                  type == AVMEDIA_TYPE_VIDEO /* sub2video hack */))
 +                continue;
 +            if (check_stream_specifier(s, s->streams[i], *p == ':' ? p + 1 : p) == 1) {
 +                st = s->streams[i];
 +                break;
 +            }
 +        }
 +        if (!st) {
 +            av_log(NULL, AV_LOG_FATAL, "Stream specifier '%s' in filtergraph description %s "
 +                   "matches no streams.\n", p, fg->graph_desc);
-             exit_program(1);
++            exit(1);
 +        }
 +        ist = input_streams[input_files[file_idx]->ist_index + st->index];
 +    } else {
 +        /* find the first unused stream of corresponding type */
 +        for (i = 0; i < nb_input_streams; i++) {
 +            ist = input_streams[i];
 +            if (ist->st->codec->codec_type == type && ist->discard)
 +                break;
 +        }
 +        if (i == nb_input_streams) {
 +            av_log(NULL, AV_LOG_FATAL, "Cannot find a matching stream for "
 +                   "unlabeled input pad %d on filter %s\n", in->pad_idx,
 +                   in->filter_ctx->name);
-         exit_program(1);
++            exit(1);
 +        }
 +    }
 +    av_assert0(ist);
 +
 +    ist->discard         = 0;
 +    ist->decoding_needed++;
 +    ist->st->discard = AVDISCARD_NONE;
 +
 +    fg->inputs = grow_array(fg->inputs, sizeof(*fg->inputs),
 +                            &fg->nb_inputs, fg->nb_inputs + 1);
 +    if (!(fg->inputs[fg->nb_inputs - 1] = av_mallocz(sizeof(*fg->inputs[0]))))
-         exit_program(1);                                           \
++        exit(1);
 +    fg->inputs[fg->nb_inputs - 1]->ist   = ist;
 +    fg->inputs[fg->nb_inputs - 1]->graph = fg;
 +
 +    ist->filters = grow_array(ist->filters, sizeof(*ist->filters),
 +                              &ist->nb_filters, ist->nb_filters + 1);
 +    ist->filters[ist->nb_filters - 1] = fg->inputs[fg->nb_inputs - 1];
 +}
 +
 +static int configure_output_video_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
 +{
 +    char *pix_fmts;
 +    OutputStream *ost = ofilter->ost;
 +    AVCodecContext *codec = ost->st->codec;
 +    AVFilterContext *last_filter = out->filter_ctx;
 +    int pad_idx = out->pad_idx;
 +    int ret;
 +    char name[255];
 +    AVBufferSinkParams *buffersink_params = av_buffersink_params_alloc();
 +
 +    snprintf(name, sizeof(name), "output stream %d:%d", ost->file_index, ost->index);
 +    ret = avfilter_graph_create_filter(&ofilter->filter,
 +                                       avfilter_get_by_name("ffbuffersink"),
 +                                       name, NULL, NULL, fg->graph);
 +    av_freep(&buffersink_params);
 +
 +    if (ret < 0)
 +        return ret;
 +
 +    if (codec->width || codec->height) {
 +        char args[255];
 +        AVFilterContext *filter;
 +
 +        snprintf(args, sizeof(args), "%d:%d:flags=0x%X",
 +                 codec->width,
 +                 codec->height,
 +                 (unsigned)ost->sws_flags);
 +        snprintf(name, sizeof(name), "scaler for output stream %d:%d",
 +                 ost->file_index, ost->index);
 +        if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
 +                                                name, args, NULL, fg->graph)) < 0)
 +            return ret;
 +        if ((ret = avfilter_link(last_filter, pad_idx, filter, 0)) < 0)
 +            return ret;
 +
 +        last_filter = filter;
 +        pad_idx = 0;
 +    }
 +
 +    if ((pix_fmts = choose_pix_fmts(ost))) {
 +        AVFilterContext *filter;
 +        snprintf(name, sizeof(name), "pixel format for output stream %d:%d",
 +                 ost->file_index, ost->index);
 +        if ((ret = avfilter_graph_create_filter(&filter,
 +                                                avfilter_get_by_name("format"),
 +                                                "format", pix_fmts, NULL,
 +                                                fg->graph)) < 0)
 +            return ret;
 +        if ((ret = avfilter_link(last_filter, pad_idx, filter, 0)) < 0)
 +            return ret;
 +
 +        last_filter = filter;
 +        pad_idx     = 0;
 +        av_freep(&pix_fmts);
 +    }
 +
 +    if (ost->frame_rate.num && 0) {
 +        AVFilterContext *fps;
 +        char args[255];
 +
 +        snprintf(args, sizeof(args), "fps=%d/%d", ost->frame_rate.num,
 +                 ost->frame_rate.den);
 +        snprintf(name, sizeof(name), "fps for output stream %d:%d",
 +                 ost->file_index, ost->index);
 +        ret = avfilter_graph_create_filter(&fps, avfilter_get_by_name("fps"),
 +                                           name, args, NULL, fg->graph);
 +        if (ret < 0)
 +            return ret;
 +
 +        ret = avfilter_link(last_filter, pad_idx, fps, 0);
 +        if (ret < 0)
 +            return ret;
 +        last_filter = fps;
 +        pad_idx = 0;
 +    }
 +
 +    if ((ret = avfilter_link(last_filter, pad_idx, ofilter->filter, 0)) < 0)
 +        return ret;
 +
 +    return 0;
 +}
 +
 +static int configure_output_audio_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
 +{
 +    OutputStream *ost = ofilter->ost;
 +    AVCodecContext *codec  = ost->st->codec;
 +    AVFilterContext *last_filter = out->filter_ctx;
 +    int pad_idx = out->pad_idx;
 +    char *sample_fmts, *sample_rates, *channel_layouts;
 +    char name[255];
 +    int ret;
 +
 +
 +    snprintf(name, sizeof(name), "output stream %d:%d", ost->file_index, ost->index);
 +    ret = avfilter_graph_create_filter(&ofilter->filter,
 +                                       avfilter_get_by_name("ffabuffersink"),
 +                                       name, NULL, NULL, fg->graph);
 +    if (ret < 0)
 +        return ret;
 +
 +#define AUTO_INSERT_FILTER(opt_name, filter_name, arg) do {                 \
 +    AVFilterContext *filt_ctx;                                              \
 +                                                                            \
 +    av_log(NULL, AV_LOG_INFO, opt_name " is forwarded to lavfi "            \
 +           "similarly to -af " filter_name "=%s.\n", arg);                  \
 +                                                                            \
 +    ret = avfilter_graph_create_filter(&filt_ctx,                           \
 +                                       avfilter_get_by_name(filter_name),   \
 +                                       filter_name, arg, NULL, fg->graph);  \
 +    if (ret < 0)                                                            \
 +        return ret;                                                         \
 +                                                                            \
 +    ret = avfilter_link(last_filter, pad_idx, filt_ctx, 0);                 \
 +    if (ret < 0)                                                            \
 +        return ret;                                                         \
 +                                                                            \
 +    last_filter = filt_ctx;                                                 \
 +    pad_idx = 0;                                                            \
 +} while (0)
 +    if (ost->audio_channels_mapped) {
 +        int i;
 +        AVBPrint pan_buf;
 +        av_bprint_init(&pan_buf, 256, 8192);
 +        av_bprintf(&pan_buf, "0x%"PRIx64,
 +                   av_get_default_channel_layout(ost->audio_channels_mapped));
 +        for (i = 0; i < ost->audio_channels_mapped; i++)
 +            if (ost->audio_channels_map[i] != -1)
 +                av_bprintf(&pan_buf, ":c%d=c%d", i, ost->audio_channels_map[i]);
 +
 +        AUTO_INSERT_FILTER("-map_channel", "pan", pan_buf.str);
 +        av_bprint_finalize(&pan_buf, NULL);
 +    }
 +
 +    if (codec->channels && !codec->channel_layout)
 +        codec->channel_layout = av_get_default_channel_layout(codec->channels);
 +
 +    sample_fmts     = choose_sample_fmts(ost);
 +    sample_rates    = choose_sample_rates(ost);
 +    channel_layouts = choose_channel_layouts(ost);
 +    if (sample_fmts || sample_rates || channel_layouts) {
 +        AVFilterContext *format;
 +        char args[256];
 +        args[0] = 0;
 +
 +        if (sample_fmts)
 +            av_strlcatf(args, sizeof(args), "sample_fmts=%s:",
 +                            sample_fmts);
 +        if (sample_rates)
 +            av_strlcatf(args, sizeof(args), "sample_rates=%s:",
 +                            sample_rates);
 +        if (channel_layouts)
 +            av_strlcatf(args, sizeof(args), "channel_layouts=%s:",
 +                            channel_layouts);
 +
 +        av_freep(&sample_fmts);
 +        av_freep(&sample_rates);
 +        av_freep(&channel_layouts);
 +
 +        snprintf(name, sizeof(name), "audio format for output stream %d:%d",
 +                 ost->file_index, ost->index);
 +        ret = avfilter_graph_create_filter(&format,
 +                                           avfilter_get_by_name("aformat"),
 +                                           name, args, NULL, fg->graph);
 +        if (ret < 0)
 +            return ret;
 +
 +        ret = avfilter_link(last_filter, pad_idx, format, 0);
 +        if (ret < 0)
 +            return ret;
 +
 +        last_filter = format;
 +        pad_idx = 0;
 +    }
 +
 +    if (audio_volume != 256 && 0) {
 +        char args[256];
 +
 +        snprintf(args, sizeof(args), "%f", audio_volume / 256.);
 +        AUTO_INSERT_FILTER("-vol", "volume", args);
 +    }
 +
 +    if ((ret = avfilter_link(last_filter, pad_idx, ofilter->filter, 0)) < 0)
 +        return ret;
 +
 +    return 0;
 +}
 +
 +#define DESCRIBE_FILTER_LINK(f, inout, in)                         \
 +{                                                                  \
 +    AVFilterContext *ctx = inout->filter_ctx;                      \
 +    AVFilterPad *pads = in ? ctx->input_pads  : ctx->output_pads;  \
 +    int       nb_pads = in ? ctx->input_count : ctx->output_count; \
 +    AVIOContext *pb;                                               \
 +                                                                   \
 +    if (avio_open_dyn_buf(&pb) < 0)                                \
-                 exit_program(1);
++        exit(1);                                                   \
 +                                                                   \
 +    avio_printf(pb, "%s", ctx->filter->name);                      \
 +    if (nb_pads > 1)                                               \
 +        avio_printf(pb, ":%s", avfilter_pad_get_name(pads, inout->pad_idx));\
 +    avio_w8(pb, 0);                                                \
 +    avio_close_dyn_buf(pb, &f->name);                              \
 +}
 +
 +int configure_output_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
 +{
 +    av_freep(&ofilter->name);
 +    DESCRIBE_FILTER_LINK(ofilter, out, 0);
 +
 +    switch (avfilter_pad_get_type(out->filter_ctx->output_pads, out->pad_idx)) {
 +    case AVMEDIA_TYPE_VIDEO: return configure_output_video_filter(fg, ofilter, out);
 +    case AVMEDIA_TYPE_AUDIO: return configure_output_audio_filter(fg, ofilter, out);
 +    default: av_assert0(0);
 +    }
 +}
 +
 +static int sub2video_prepare(InputStream *ist)
 +{
 +    AVFormatContext *avf = input_files[ist->file_index]->ctx;
 +    int i, ret, w, h;
 +    uint8_t *image[4];
 +    int linesize[4];
 +
 +    /* Compute the size of the canvas for the subtitles stream.
 +       If the subtitles codec has set a size, use it. Otherwise use the
 +       maximum dimensions of the video streams in the same file. */
 +    w = ist->st->codec->width;
 +    h = ist->st->codec->height;
 +    if (!(w && h)) {
 +        for (i = 0; i < avf->nb_streams; i++) {
 +            if (avf->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
 +                w = FFMAX(w, avf->streams[i]->codec->width);
 +                h = FFMAX(h, avf->streams[i]->codec->height);
 +            }
 +        }
 +        if (!(w && h)) {
 +            w = FFMAX(w, 720);
 +            h = FFMAX(h, 576);
 +        }
 +        av_log(avf, AV_LOG_INFO, "sub2video: using %dx%d canvas\n", w, h);
 +    }
 +    ist->sub2video.w = ist->st->codec->width  = w;
 +    ist->sub2video.h = ist->st->codec->height = h;
 +
 +    /* rectangles are PIX_FMT_PAL8, but we have no guarantee that the
 +       palettes for all rectangles are identical or compatible */
 +    ist->st->codec->pix_fmt = PIX_FMT_RGB32;
 +
 +    ret = av_image_alloc(image, linesize, w, h, PIX_FMT_RGB32, 32);
 +    if (ret < 0)
 +        return ret;
 +    memset(image[0], 0, h * linesize[0]);
 +    ist->sub2video.ref = avfilter_get_video_buffer_ref_from_arrays(
 +            image, linesize, AV_PERM_READ | AV_PERM_PRESERVE,
 +            w, h, PIX_FMT_RGB32);
 +    if (!ist->sub2video.ref) {
 +        av_free(image[0]);
 +        return AVERROR(ENOMEM);
 +    }
 +    return 0;
 +}
 +
 +static int configure_input_video_filter(FilterGraph *fg, InputFilter *ifilter,
 +                                        AVFilterInOut *in)
 +{
 +    AVFilterContext *first_filter = in->filter_ctx;
 +    AVFilter *filter = avfilter_get_by_name("buffer");
 +    InputStream *ist = ifilter->ist;
 +    AVRational tb = ist->framerate.num ? av_inv_q(ist->framerate) :
 +                                         ist->st->time_base;
 +    AVRational fr = ist->framerate.num ? ist->framerate :
 +                                         ist->st->r_frame_rate;
 +    AVRational sar;
 +    AVBPrint args;
 +    char name[255];
 +    int pad_idx = in->pad_idx;
 +    int ret;
 +
 +    if (ist->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
 +        ret = sub2video_prepare(ist);
 +        if (ret < 0)
 +            return ret;
 +    }
 +
 +    sar = ist->st->sample_aspect_ratio.num ?
 +          ist->st->sample_aspect_ratio :
 +          ist->st->codec->sample_aspect_ratio;
 +    if(!sar.den)
 +        sar = (AVRational){0,1};
 +    av_bprint_init(&args, 0, 1);
 +    av_bprintf(&args,
 +             "video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:"
 +             "pixel_aspect=%d/%d:sws_param=flags=%d", ist->st->codec->width,
 +             ist->st->codec->height, ist->st->codec->pix_fmt,
 +             tb.num, tb.den, sar.num, sar.den,
 +             SWS_BILINEAR + ((ist->st->codec->flags&CODEC_FLAG_BITEXACT) ? SWS_BITEXACT:0));
 +    if (fr.num && fr.den)
 +        av_bprintf(&args, ":frame_rate=%d/%d", fr.num, fr.den);
 +    snprintf(name, sizeof(name), "graph %d input from stream %d:%d", fg->index,
 +             ist->file_index, ist->st->index);
 +
 +    if ((ret = avfilter_graph_create_filter(&ifilter->filter, filter, name,
 +                                            args.str, NULL, fg->graph)) < 0)
 +        return ret;
 +
 +    if (ist->framerate.num) {
 +        AVFilterContext *setpts;
 +
 +        snprintf(name, sizeof(name), "force CFR for input from stream %d:%d",
 +                 ist->file_index, ist->st->index);
 +        if ((ret = avfilter_graph_create_filter(&setpts,
 +                                                avfilter_get_by_name("setpts"),
 +                                                name, "N", NULL,
 +                                                fg->graph)) < 0)
 +            return ret;
 +
 +        if ((ret = avfilter_link(setpts, 0, first_filter, pad_idx)) < 0)
 +            return ret;
 +
 +        first_filter = setpts;
 +        pad_idx = 0;
 +    }
 +
 +    if ((ret = avfilter_link(ifilter->filter, 0, first_filter, pad_idx)) < 0)
 +        return ret;
 +    return 0;
 +}
 +
 +static int configure_input_audio_filter(FilterGraph *fg, InputFilter *ifilter,
 +                                        AVFilterInOut *in)
 +{
 +    AVFilterContext *first_filter = in->filter_ctx;
 +    AVFilter *filter = avfilter_get_by_name("abuffer");
 +    InputStream *ist = ifilter->ist;
 +    int pad_idx = in->pad_idx;
 +    char args[255], name[255];
 +    int ret;
 +
 +    snprintf(args, sizeof(args), "time_base=%d/%d:sample_rate=%d:sample_fmt=%s"
 +             ":channel_layout=0x%"PRIx64,
 +             1, ist->st->codec->sample_rate,
 +             ist->st->codec->sample_rate,
 +             av_get_sample_fmt_name(ist->st->codec->sample_fmt),
 +             ist->st->codec->channel_layout);
 +    snprintf(name, sizeof(name), "graph %d input from stream %d:%d", fg->index,
 +             ist->file_index, ist->st->index);
 +
 +    if ((ret = avfilter_graph_create_filter(&ifilter->filter, filter,
 +                                            name, args, NULL,
 +                                            fg->graph)) < 0)
 +        return ret;
 +
 +#define AUTO_INSERT_FILTER_INPUT(opt_name, filter_name, arg) do {                 \
 +    AVFilterContext *filt_ctx;                                              \
 +                                                                            \
 +    av_log(NULL, AV_LOG_INFO, opt_name " is forwarded to lavfi "            \
 +           "similarly to -af " filter_name "=%s.\n", arg);                  \
 +                                                                            \
 +    snprintf(name, sizeof(name), "graph %d %s for input stream %d:%d",      \
 +                fg->index, filter_name, ist->file_index, ist->st->index);   \
 +    ret = avfilter_graph_create_filter(&filt_ctx,                           \
 +                                       avfilter_get_by_name(filter_name),   \
 +                                       name, arg, NULL, fg->graph);         \
 +    if (ret < 0)                                                            \
 +        return ret;                                                         \
 +                                                                            \
 +    ret = avfilter_link(filt_ctx, 0, first_filter, pad_idx);                \
 +    if (ret < 0)                                                            \
 +        return ret;                                                         \
 +                                                                            \
 +    first_filter = filt_ctx;                                                  \
 +} while (0)
 +
 +    if (audio_sync_method > 0) {
 +        char args[256] = {0};
 +
 +        av_strlcatf(args, sizeof(args), "min_comp=0.001:min_hard_comp=%f", audio_drift_threshold);
 +        if (audio_sync_method > 1)
 +            av_strlcatf(args, sizeof(args), ":max_soft_comp=%f", audio_sync_method/(double)ist->st->codec->sample_rate);
 +        AUTO_INSERT_FILTER_INPUT("-async", "aresample", args);
 +    }
 +
 +//     if (ost->audio_channels_mapped) {
 +//         int i;
 +//         AVBPrint pan_buf;
 +//         av_bprint_init(&pan_buf, 256, 8192);
 +//         av_bprintf(&pan_buf, "0x%"PRIx64,
 +//                    av_get_default_channel_layout(ost->audio_channels_mapped));
 +//         for (i = 0; i < ost->audio_channels_mapped; i++)
 +//             if (ost->audio_channels_map[i] != -1)
 +//                 av_bprintf(&pan_buf, ":c%d=c%d", i, ost->audio_channels_map[i]);
 +//         AUTO_INSERT_FILTER_INPUT("-map_channel", "pan", pan_buf.str);
 +//         av_bprint_finalize(&pan_buf, NULL);
 +//     }
 +
 +    if (audio_volume != 256) {
 +        char args[256];
 +
 +        snprintf(args, sizeof(args), "%f", audio_volume / 256.);
 +        AUTO_INSERT_FILTER_INPUT("-vol", "volume", args);
 +    }
 +    if ((ret = avfilter_link(ifilter->filter, 0, first_filter, pad_idx)) < 0)
 +        return ret;
 +
 +    return 0;
 +}
 +
 +static int configure_input_filter(FilterGraph *fg, InputFilter *ifilter,
 +                                  AVFilterInOut *in)
 +{
 +    av_freep(&ifilter->name);
 +    DESCRIBE_FILTER_LINK(ifilter, in, 1);
 +
 +    switch (avfilter_pad_get_type(in->filter_ctx->input_pads, in->pad_idx)) {
 +    case AVMEDIA_TYPE_VIDEO: return configure_input_video_filter(fg, ifilter, in);
 +    case AVMEDIA_TYPE_AUDIO: return configure_input_audio_filter(fg, ifilter, in);
 +    default: av_assert0(0);
 +    }
 +}
 +
 +int configure_filtergraph(FilterGraph *fg)
 +{
 +    AVFilterInOut *inputs, *outputs, *cur;
 +    int ret, i, init = !fg->graph, simple = !fg->graph_desc;
 +    const char *graph_desc = simple ? fg->outputs[0]->ost->avfilter :
 +                                      fg->graph_desc;
 +
 +    avfilter_graph_free(&fg->graph);
 +    if (!(fg->graph = avfilter_graph_alloc()))
 +        return AVERROR(ENOMEM);
 +
 +    if (simple) {
 +        OutputStream *ost = fg->outputs[0]->ost;
 +        char args[255];
 +        snprintf(args, sizeof(args), "flags=0x%X", (unsigned)ost->sws_flags);
 +        fg->graph->scale_sws_opts = av_strdup(args);
 +    }
 +
 +    if ((ret = avfilter_graph_parse2(fg->graph, graph_desc, &inputs, &outputs)) < 0)
 +        return ret;
 +
 +    if (simple && (!inputs || inputs->next || !outputs || outputs->next)) {
 +        av_log(NULL, AV_LOG_ERROR, "Simple filtergraph '%s' does not have "
 +               "exactly one input and output.\n", graph_desc);
 +        return AVERROR(EINVAL);
 +    }
 +
 +    for (cur = inputs; !simple && init && cur; cur = cur->next)
 +        init_input_filter(fg, cur);
 +
 +    for (cur = inputs, i = 0; cur; cur = cur->next, i++)
 +        if ((ret = configure_input_filter(fg, fg->inputs[i], cur)) < 0)
 +            return ret;
 +    avfilter_inout_free(&inputs);
 +
 +    if (!init || simple) {
 +        /* we already know the mappings between lavfi outputs and output streams,
 +         * so we can finish the setup */
 +        for (cur = outputs, i = 0; cur; cur = cur->next, i++)
 +            configure_output_filter(fg, fg->outputs[i], cur);
 +        avfilter_inout_free(&outputs);
 +
 +        if ((ret = avfilter_graph_config(fg->graph, NULL)) < 0)
 +            return ret;
 +    } else {
 +        /* wait until output mappings are processed */
 +        for (cur = outputs; cur;) {
 +            fg->outputs = grow_array(fg->outputs, sizeof(*fg->outputs),
 +                                     &fg->nb_outputs, fg->nb_outputs + 1);
 +            if (!(fg->outputs[fg->nb_outputs - 1] = av_mallocz(sizeof(*fg->outputs[0]))))
++                exit(1);
 +            fg->outputs[fg->nb_outputs - 1]->graph   = fg;
 +            fg->outputs[fg->nb_outputs - 1]->out_tmp = cur;
 +            cur = cur->next;
 +            fg->outputs[fg->nb_outputs - 1]->out_tmp->next = NULL;
 +        }
 +    }
 +
 +    return 0;
 +}
 +
 +int ist_in_filtergraph(FilterGraph *fg, InputStream *ist)
 +{
 +    int i;
 +    for (i = 0; i < fg->nb_inputs; i++)
 +        if (fg->inputs[i]->ist == ist)
 +            return 1;
 +    return 0;
 +}
 +
diff --cc ffmpeg_opt.c
index 2c5fbfb,0000000..bce66f8
mode 100644,000000..100644
--- /dev/null
@@@ -1,2501 -1,0 +1,2501 @@@
-             exit_program(1);\
 +/*
 + * ffmpeg option parsing
 + *
 + * This file is part of FFmpeg.
 + *
 + * FFmpeg is free software; you can redistribute it and/or
 + * modify it under the terms of the GNU Lesser General Public
 + * License as published by the Free Software Foundation; either
 + * version 2.1 of the License, or (at your option) any later version.
 + *
 + * FFmpeg is distributed in the hope that it will be useful,
 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 + * Lesser General Public License for more details.
 + *
 + * You should have received a copy of the GNU Lesser General Public
 + * License along with FFmpeg; if not, write to the Free Software
 + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 + */
 +
 +#include <stdint.h>
 +
 +#include "ffmpeg.h"
 +#include "cmdutils.h"
 +
 +#include "libavformat/avformat.h"
 +
 +#include "libavcodec/avcodec.h"
 +
 +#include "libavfilter/avfilter.h"
 +#include "libavfilter/avfiltergraph.h"
 +
 +#include "libavutil/audioconvert.h"
 +#include "libavutil/avassert.h"
 +#include "libavutil/avstring.h"
 +#include "libavutil/avutil.h"
 +#include "libavutil/intreadwrite.h"
 +#include "libavutil/fifo.h"
 +#include "libavutil/mathematics.h"
 +#include "libavutil/opt.h"
 +#include "libavutil/parseutils.h"
 +#include "libavutil/pixdesc.h"
 +#include "libavutil/pixfmt.h"
 +
 +#define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
 +{\
 +    int i, ret;\
 +    for (i = 0; i < o->nb_ ## name; i++) {\
 +        char *spec = o->name[i].specifier;\
 +        if ((ret = check_stream_specifier(fmtctx, st, spec)) > 0)\
 +            outvar = o->name[i].u.type;\
 +        else if (ret < 0)\
-     }
++            exit(1);\
 +    }\
 +}
 +
 +#define MATCH_PER_TYPE_OPT(name, type, outvar, fmtctx, mediatype)\
 +{\
 +    int i;\
 +    for (i = 0; i < o->nb_ ## name; i++) {\
 +        char *spec = o->name[i].specifier;\
 +        if (!strcmp(spec, mediatype))\
 +            outvar = o->name[i].u.type;\
 +    }\
 +}
 +char *vstats_filename;
 +
 +float audio_drift_threshold = 0.1;
 +float dts_delta_threshold   = 10;
 +float dts_error_threshold   = 3600*30;
 +
 +int audio_volume      = 256;
 +int audio_sync_method = 0;
 +int video_sync_method = VSYNC_AUTO;
 +int do_deinterlace    = 0;
 +int do_benchmark      = 0;
 +int do_benchmark_all  = 0;
 +int do_hex_dump       = 0;
 +int do_pkt_dump       = 0;
 +int copy_ts           = 0;
 +int copy_tb           = -1;
 +int debug_ts          = 0;
 +int exit_on_error     = 0;
 +int print_stats       = 1;
 +int qp_hist           = 0;
 +int same_quant        = 0;
 +int stdin_interaction = 1;
 +int frame_bits_per_raw_sample = 0;
 +
 +
 +static int intra_only         = 0;
 +static int file_overwrite     = 0;
 +static int no_file_overwrite  = 0;
 +static int video_discard      = 0;
 +static int intra_dc_precision = 8;
 +static int do_psnr            = 0;
 +static int input_sync;
 +
 +void reset_options(OptionsContext *o, int is_input)
 +{
 +    const OptionDef *po = options;
 +    OptionsContext bak= *o;
 +    int i;
 +
 +    /* all OPT_SPEC and OPT_STRING can be freed in generic way */
 +    while (po->name) {
 +        void *dst = (uint8_t*)o + po->u.off;
 +
 +        if (po->flags & OPT_SPEC) {
 +            SpecifierOpt **so = dst;
 +            int i, *count = (int*)(so + 1);
 +            for (i = 0; i < *count; i++) {
 +                av_freep(&(*so)[i].specifier);
 +                if (po->flags & OPT_STRING)
 +                    av_freep(&(*so)[i].u.str);
 +            }
 +            av_freep(so);
 +            *count = 0;
 +        } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
 +            av_freep(dst);
 +        po++;
 +    }
 +
 +    for (i = 0; i < o->nb_stream_maps; i++)
 +        av_freep(&o->stream_maps[i].linklabel);
 +    av_freep(&o->stream_maps);
 +    av_freep(&o->audio_channel_maps);
 +    av_freep(&o->streamid_map);
 +
 +    memset(o, 0, sizeof(*o));
 +
 +    if (is_input) {
 +        o->recording_time = bak.recording_time;
 +        if (o->recording_time != INT64_MAX)
 +            av_log(NULL, AV_LOG_WARNING,
 +                   "-t is not an input option, keeping it for the next output;"
 +                   " consider fixing your command line.\n");
 +    } else
 +    o->recording_time = INT64_MAX;
 +    o->mux_max_delay  = 0.7;
 +    o->limit_filesize = UINT64_MAX;
 +    o->chapters_input_file = INT_MAX;
 +
 +    uninit_opts();
 +    init_opts();
 +}
 +
 +
 +static int opt_frame_crop(void *optctx, const char *opt, const char *arg)
 +{
 +    av_log(NULL, AV_LOG_FATAL, "Option '%s' has been removed, use the crop filter instead\n", opt);
 +    return AVERROR(EINVAL);
 +}
 +
 +static int opt_pad(void *optctx, const char *opt, const char *arg)
 +{
 +    av_log(NULL, AV_LOG_FATAL, "Option '%s' has been removed, use the pad filter instead\n", opt);
 +    return -1;
 +}
 +
 +static int opt_video_channel(void *optctx, const char *opt, const char *arg)
 +{
 +    av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -channel.\n");
 +    return opt_default(optctx, "channel", arg);
-             exit_program(1);
++}
 +
 +static int opt_video_standard(void *optctx, const char *opt, const char *arg)
 +{
 +    av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -standard.\n");
 +    return opt_default(optctx, "standard", arg);
 +}
 +
 +static int opt_audio_codec(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    return parse_option(o, "codec:a", arg, options);
 +}
 +
 +static int opt_video_codec(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    return parse_option(o, "codec:v", arg, options);
 +}
 +
 +static int opt_subtitle_codec(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    return parse_option(o, "codec:s", arg, options);
 +}
 +
 +static int opt_data_codec(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    return parse_option(o, "codec:d", arg, options);
 +}
 +
 +static int opt_map(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    StreamMap *m = NULL;
 +    int i, negative = 0, file_idx;
 +    int sync_file_idx = -1, sync_stream_idx = 0;
 +    char *p, *sync;
 +    char *map;
 +
 +    if (*arg == '-') {
 +        negative = 1;
 +        arg++;
 +    }
 +    map = av_strdup(arg);
 +
 +    /* parse sync stream first, just pick first matching stream */
 +    if (sync = strchr(map, ',')) {
 +        *sync = 0;
 +        sync_file_idx = strtol(sync + 1, &sync, 0);
 +        if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
 +            av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
-             exit_program(1);
++            exit(1);
 +        }
 +        if (*sync)
 +            sync++;
 +        for (i = 0; i < input_files[sync_file_idx]->nb_streams; i++)
 +            if (check_stream_specifier(input_files[sync_file_idx]->ctx,
 +                                       input_files[sync_file_idx]->ctx->streams[i], sync) == 1) {
 +                sync_stream_idx = i;
 +                break;
 +            }
 +        if (i == input_files[sync_file_idx]->nb_streams) {
 +            av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
 +                                       "match any streams.\n", arg);
-             exit_program(1);
++            exit(1);
 +        }
 +    }
 +
 +
 +    if (map[0] == '[') {
 +        /* this mapping refers to lavfi output */
 +        const char *c = map + 1;
 +        o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
 +                                    &o->nb_stream_maps, o->nb_stream_maps + 1);
 +        m = &o->stream_maps[o->nb_stream_maps - 1];
 +        m->linklabel = av_get_token(&c, "]");
 +        if (!m->linklabel) {
 +            av_log(NULL, AV_LOG_ERROR, "Invalid output link label: %s.\n", map);
-             exit_program(1);
++            exit(1);
 +        }
 +    } else {
 +        file_idx = strtol(map, &p, 0);
 +        if (file_idx >= nb_input_files || file_idx < 0) {
 +            av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
-         exit_program(1);
++            exit(1);
 +        }
 +        if (negative)
 +            /* disable some already defined maps */
 +            for (i = 0; i < o->nb_stream_maps; i++) {
 +                m = &o->stream_maps[i];
 +                if (file_idx == m->file_index &&
 +                    check_stream_specifier(input_files[m->file_index]->ctx,
 +                                           input_files[m->file_index]->ctx->streams[m->stream_index],
 +                                           *p == ':' ? p + 1 : p) > 0)
 +                    m->disabled = 1;
 +            }
 +        else
 +            for (i = 0; i < input_files[file_idx]->nb_streams; i++) {
 +                if (check_stream_specifier(input_files[file_idx]->ctx, input_files[file_idx]->ctx->streams[i],
 +                            *p == ':' ? p + 1 : p) <= 0)
 +                    continue;
 +                o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
 +                                            &o->nb_stream_maps, o->nb_stream_maps + 1);
 +                m = &o->stream_maps[o->nb_stream_maps - 1];
 +
 +                m->file_index   = file_idx;
 +                m->stream_index = i;
 +
 +                if (sync_file_idx >= 0) {
 +                    m->sync_file_index   = sync_file_idx;
 +                    m->sync_stream_index = sync_stream_idx;
 +                } else {
 +                    m->sync_file_index   = file_idx;
 +                    m->sync_stream_index = i;
 +                }
 +            }
 +    }
 +
 +    if (!m) {
 +        av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n", arg);
-         exit_program(1);
++        exit(1);
 +    }
 +
 +    av_freep(&map);
 +    return 0;
 +}
 +
 +static int opt_attach(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    o->attachments = grow_array(o->attachments, sizeof(*o->attachments),
 +                                &o->nb_attachments, o->nb_attachments + 1);
 +    o->attachments[o->nb_attachments - 1] = arg;
 +    return 0;
 +}
 +
 +static int opt_map_channel(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    int n;
 +    AVStream *st;
 +    AudioChannelMap *m;
 +
 +    o->audio_channel_maps =
 +        grow_array(o->audio_channel_maps, sizeof(*o->audio_channel_maps),
 +                   &o->nb_audio_channel_maps, o->nb_audio_channel_maps + 1);
 +    m = &o->audio_channel_maps[o->nb_audio_channel_maps - 1];
 +
 +    /* muted channel syntax */
 +    n = sscanf(arg, "%d:%d.%d", &m->channel_idx, &m->ofile_idx, &m->ostream_idx);
 +    if ((n == 1 || n == 3) && m->channel_idx == -1) {
 +        m->file_idx = m->stream_idx = -1;
 +        if (n == 1)
 +            m->ofile_idx = m->ostream_idx = -1;
 +        return 0;
 +    }
 +
 +    /* normal syntax */
 +    n = sscanf(arg, "%d.%d.%d:%d.%d",
 +               &m->file_idx,  &m->stream_idx, &m->channel_idx,
 +               &m->ofile_idx, &m->ostream_idx);
 +
 +    if (n != 3 && n != 5) {
 +        av_log(NULL, AV_LOG_FATAL, "Syntax error, mapchan usage: "
 +               "[file.stream.channel|-1][:syncfile:syncstream]\n");
-         exit_program(1);
++        exit(1);
 +    }
 +
 +    if (n != 5) // only file.stream.channel specified
 +        m->ofile_idx = m->ostream_idx = -1;
 +
 +    /* check input */
 +    if (m->file_idx < 0 || m->file_idx >= nb_input_files) {
 +        av_log(NULL, AV_LOG_FATAL, "mapchan: invalid input file index: %d\n",
 +               m->file_idx);
-         exit_program(1);
++        exit(1);
 +    }
 +    if (m->stream_idx < 0 ||
 +        m->stream_idx >= input_files[m->file_idx]->nb_streams) {
 +        av_log(NULL, AV_LOG_FATAL, "mapchan: invalid input file stream index #%d.%d\n",
 +               m->file_idx, m->stream_idx);
-         exit_program(1);
++        exit(1);
 +    }
 +    st = input_files[m->file_idx]->ctx->streams[m->stream_idx];
 +    if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO) {
 +        av_log(NULL, AV_LOG_FATAL, "mapchan: stream #%d.%d is not an audio stream.\n",
 +               m->file_idx, m->stream_idx);
-         exit_program(1);
++        exit(1);
 +    }
 +    if (m->channel_idx < 0 || m->channel_idx >= st->codec->channels) {
 +        av_log(NULL, AV_LOG_FATAL, "mapchan: invalid audio channel #%d.%d.%d\n",
 +               m->file_idx, m->stream_idx, m->channel_idx);
-                 exit_program(1);
++        exit(1);
 +    }
 +    return 0;
 +}
 +
 +/**
 + * Parse a metadata specifier in arg.
 + * @param type metadata type is written here -- g(lobal)/s(tream)/c(hapter)/p(rogram)
 + * @param index for type c/p, chapter/program index is written here
 + * @param stream_spec for type s, the stream specifier is written here
 + */
 +static void parse_meta_type(char *arg, char *type, int *index, const char **stream_spec)
 +{
 +    if (*arg) {
 +        *type = *arg;
 +        switch (*arg) {
 +        case 'g':
 +            break;
 +        case 's':
 +            if (*(++arg) && *arg != ':') {
 +                av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", arg);
-             exit_program(1);
++                exit(1);
 +            }
 +            *stream_spec = *arg == ':' ? arg + 1 : "";
 +            break;
 +        case 'c':
 +        case 'p':
 +            if (*(++arg) == ':')
 +                *index = strtol(++arg, NULL, 0);
 +            break;
 +        default:
 +            av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
-         exit_program(1);\
++            exit(1);
 +        }
 +    } else
 +        *type = 'g';
 +}
 +
 +static int copy_metadata(char *outspec, char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o)
 +{
 +    AVDictionary **meta_in = NULL;
 +    AVDictionary **meta_out = NULL;
 +    int i, ret = 0;
 +    char type_in, type_out;
 +    const char *istream_spec = NULL, *ostream_spec = NULL;
 +    int idx_in = 0, idx_out = 0;
 +
 +    parse_meta_type(inspec,  &type_in,  &idx_in,  &istream_spec);
 +    parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
 +
 +    if (!ic) {
 +        if (type_out == 'g' || !*outspec)
 +            o->metadata_global_manual = 1;
 +        if (type_out == 's' || !*outspec)
 +            o->metadata_streams_manual = 1;
 +        if (type_out == 'c' || !*outspec)
 +            o->metadata_chapters_manual = 1;
 +        return 0;
 +    }
 +
 +    if (type_in == 'g' || type_out == 'g')
 +        o->metadata_global_manual = 1;
 +    if (type_in == 's' || type_out == 's')
 +        o->metadata_streams_manual = 1;
 +    if (type_in == 'c' || type_out == 'c')
 +        o->metadata_chapters_manual = 1;
 +
 +#define METADATA_CHECK_INDEX(index, nb_elems, desc)\
 +    if ((index) < 0 || (index) >= (nb_elems)) {\
 +        av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps.\n",\
 +                (desc), (index));\
-                 exit_program(1);
++        exit(1);\
 +    }
 +
 +#define SET_DICT(type, meta, context, index)\
 +        switch (type) {\
 +        case 'g':\
 +            meta = &context->metadata;\
 +            break;\
 +        case 'c':\
 +            METADATA_CHECK_INDEX(index, context->nb_chapters, "chapter")\
 +            meta = &context->chapters[index]->metadata;\
 +            break;\
 +        case 'p':\
 +            METADATA_CHECK_INDEX(index, context->nb_programs, "program")\
 +            meta = &context->programs[index]->metadata;\
 +            break;\
 +        default: av_assert0(0);\
 +        case 's':\
 +            break;\
 +        }\
 +
 +    SET_DICT(type_in, meta_in, ic, idx_in);
 +    SET_DICT(type_out, meta_out, oc, idx_out);
 +
 +    /* for input streams choose first matching stream */
 +    if (type_in == 's') {
 +        for (i = 0; i < ic->nb_streams; i++) {
 +            if ((ret = check_stream_specifier(ic, ic->streams[i], istream_spec)) > 0) {
 +                meta_in = &ic->streams[i]->metadata;
 +                break;
 +            } else if (ret < 0)
-             exit_program(1);
++                exit(1);
 +        }
 +        if (!meta_in) {
 +            av_log(NULL, AV_LOG_FATAL, "Stream specifier %s does not match  any streams.\n", istream_spec);
-                 exit_program(1);
++            exit(1);
 +        }
 +    }
 +
 +    if (type_out == 's') {
 +        for (i = 0; i < oc->nb_streams; i++) {
 +            if ((ret = check_stream_specifier(oc, oc->streams[i], ostream_spec)) > 0) {
 +                meta_out = &oc->streams[i]->metadata;
 +                av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
 +            } else if (ret < 0)
-         exit_program(1);
++                exit(1);
 +        }
 +    } else
 +        av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
 +
 +    return 0;
 +}
 +
 +static int opt_recording_timestamp(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    char buf[128];
 +    int64_t recording_timestamp = parse_time_or_die(opt, arg, 0) / 1E6;
 +    struct tm time = *gmtime((time_t*)&recording_timestamp);
 +    strftime(buf, sizeof(buf), "creation_time=%FT%T%z", &time);
 +    parse_option(o, "metadata", buf, options);
 +
 +    av_log(NULL, AV_LOG_WARNING, "%s is deprecated, set the 'creation_time' metadata "
 +                                 "tag instead.\n", opt);
 +    return 0;
 +}
 +
 +static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
 +{
 +    const AVCodecDescriptor *desc;
 +    const char *codec_string = encoder ? "encoder" : "decoder";
 +    AVCodec *codec;
 +
 +    codec = encoder ?
 +        avcodec_find_encoder_by_name(name) :
 +        avcodec_find_decoder_by_name(name);
 +
 +    if (!codec && (desc = avcodec_descriptor_get_by_name(name))) {
 +        codec = encoder ? avcodec_find_encoder(desc->id) :
 +                          avcodec_find_decoder(desc->id);
 +        if (codec)
 +            av_log(NULL, AV_LOG_VERBOSE, "Matched %s '%s' for codec '%s'.\n",
 +                   codec_string, codec->name, desc->name);
 +    }
 +
 +    if (!codec) {
 +        av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
-         exit_program(1);
++        exit(1);
 +    }
 +    if (codec->type != type) {
 +        av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
-             exit_program(1);
++        exit(1);
 +    }
 +    return codec;
 +}
 +
 +static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
 +{
 +    char *codec_name = NULL;
 +
 +    MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
 +    if (codec_name) {
 +        AVCodec *codec = find_codec_or_die(codec_name, st->codec->codec_type, 0);
 +        st->codec->codec_id = codec->id;
 +        return codec;
 +    } else
 +        return avcodec_find_decoder(st->codec->codec_id);
 +}
 +
 +/**
 + * Add all the streams from the given input file to the global
 + * list of input streams.
 + */
 +static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
 +{
 +    int i;
 +    char *next, *codec_tag = NULL;
 +
 +    for (i = 0; i < ic->nb_streams; i++) {
 +        AVStream *st = ic->streams[i];
 +        AVCodecContext *dec = st->codec;
 +        InputStream *ist = av_mallocz(sizeof(*ist));
 +        char *framerate = NULL;
 +
 +        if (!ist)
-                 exit_program(1);
++            exit(1);
 +
 +        input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
 +        input_streams[nb_input_streams - 1] = ist;
 +
 +        ist->st = st;
 +        ist->file_index = nb_input_files;
 +        ist->discard = 1;
 +        st->discard  = AVDISCARD_ALL;
 +        ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st, choose_decoder(o, ic, st));
 +
 +        ist->ts_scale = 1.0;
 +        MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
 +
 +        MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, ic, st);
 +        if (codec_tag) {
 +            uint32_t tag = strtol(codec_tag, &next, 0);
 +            if (*next)
 +                tag = AV_RL32(codec_tag);
 +            st->codec->codec_tag = tag;
 +        }
 +
 +        ist->dec = choose_decoder(o, ic, st);
 +
 +        switch (dec->codec_type) {
 +        case AVMEDIA_TYPE_VIDEO:
 +            if(!ist->dec)
 +                ist->dec = avcodec_find_decoder(dec->codec_id);
 +            if (dec->lowres) {
 +                dec->flags |= CODEC_FLAG_EMU_EDGE;
 +            }
 +
 +            ist->resample_height  = dec->height;
 +            ist->resample_width   = dec->width;
 +            ist->resample_pix_fmt = dec->pix_fmt;
 +
 +            MATCH_PER_STREAM_OPT(frame_rates, str, framerate, ic, st);
 +            if (framerate && av_parse_video_rate(&ist->framerate,
 +                                                 framerate) < 0) {
 +                av_log(NULL, AV_LOG_ERROR, "Error parsing framerate %s.\n",
 +                       framerate);
-                     exit_program(1);
++                exit(1);
 +            }
 +
 +            ist->top_field_first = -1;
 +            MATCH_PER_STREAM_OPT(top_field_first, i, ist->top_field_first, ic, st);
 +
 +            break;
 +        case AVMEDIA_TYPE_AUDIO:
 +            guess_input_channel_layout(ist);
 +
 +            ist->resample_sample_fmt     = dec->sample_fmt;
 +            ist->resample_sample_rate    = dec->sample_rate;
 +            ist->resample_channels       = dec->channels;
 +            ist->resample_channel_layout = dec->channel_layout;
 +
 +            break;
 +        case AVMEDIA_TYPE_DATA:
 +        case AVMEDIA_TYPE_SUBTITLE:
 +            if(!ist->dec)
 +                ist->dec = avcodec_find_decoder(dec->codec_id);
 +            MATCH_PER_STREAM_OPT(fix_sub_duration, i, ist->fix_sub_duration, ic, st);
 +            break;
 +        case AVMEDIA_TYPE_ATTACHMENT:
 +        case AVMEDIA_TYPE_UNKNOWN:
 +            break;
 +        default:
 +            abort();
 +        }
 +    }
 +}
 +
 +static void assert_file_overwrite(const char *filename)
 +{
 +    if ((!file_overwrite || no_file_overwrite) &&
 +        (strchr(filename, ':') == NULL || filename[1] == ':' ||
 +         av_strstart(filename, "file:", NULL))) {
 +        if (avio_check(filename, 0) == 0) {
 +            if (stdin_interaction && (!no_file_overwrite || file_overwrite)) {
 +                fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
 +                fflush(stderr);
 +                term_exit();
 +                signal(SIGINT, SIG_DFL);
 +                if (!read_yesno()) {
 +                    av_log(NULL, AV_LOG_FATAL, "Not overwriting - exiting\n");
-                 exit_program(1);
++                    exit(1);
 +                }
 +                term_init();
 +            }
 +            else {
 +                av_log(NULL, AV_LOG_FATAL, "File '%s' already exists. Exiting.\n", filename);
-         exit_program(1);
++                exit(1);
 +            }
 +        }
 +    }
 +}
 +
 +static void dump_attachment(AVStream *st, const char *filename)
 +{
 +    int ret;
 +    AVIOContext *out = NULL;
 +    AVDictionaryEntry *e;
 +
 +    if (!st->codec->extradata_size) {
 +        av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
 +               nb_input_files - 1, st->index);
 +        return;
 +    }
 +    if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
 +        filename = e->value;
 +    if (!*filename) {
 +        av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
 +               "in stream #%d:%d.\n", nb_input_files - 1, st->index);
-         exit_program(1);
++        exit(1);
 +    }
 +
 +    assert_file_overwrite(filename);
 +
 +    if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &int_cb, NULL)) < 0) {
 +        av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
 +               filename);
-             exit_program(1);
++        exit(1);
 +    }
 +
 +    avio_write(out, st->codec->extradata, st->codec->extradata_size);
 +    avio_flush(out);
 +    avio_close(out);
 +}
 +
 +static int opt_input_file(void *optctx, const char *opt, const char *filename)
 +{
 +    OptionsContext *o = optctx;
 +    AVFormatContext *ic;
 +    AVInputFormat *file_iformat = NULL;
 +    int err, i, ret;
 +    int64_t timestamp;
 +    uint8_t buf[128];
 +    AVDictionary **opts;
 +    int orig_nb_streams;                     // number of streams before avformat_find_stream_info
 +    char *   video_codec_name = NULL;
 +    char *   audio_codec_name = NULL;
 +    char *subtitle_codec_name = NULL;
 +
 +    if (o->format) {
 +        if (!(file_iformat = av_find_input_format(o->format))) {
 +            av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
-         exit_program(1);
++            exit(1);
 +        }
 +    }
 +
 +    if (!strcmp(filename, "-"))
 +        filename = "pipe:";
 +
 +    stdin_interaction &= strncmp(filename, "pipe:", 5) &&
 +                         strcmp(filename, "/dev/stdin");
 +
 +    /* get default parameters from command line */
 +    ic = avformat_alloc_context();
 +    if (!ic) {
 +        print_error(filename, AVERROR(ENOMEM));
-         exit_program(1);
++        exit(1);
 +    }
 +    if (o->nb_audio_sample_rate) {
 +        snprintf(buf, sizeof(buf), "%d", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i);
 +        av_dict_set(&format_opts, "sample_rate", buf, 0);
 +    }
 +    if (o->nb_audio_channels) {
 +        /* because we set audio_channels based on both the "ac" and
 +         * "channel_layout" options, we need to check that the specified
 +         * demuxer actually has the "channels" option before setting it */
 +        if (file_iformat && file_iformat->priv_class &&
 +            av_opt_find(&file_iformat->priv_class, "channels", NULL, 0,
 +                        AV_OPT_SEARCH_FAKE_OBJ)) {
 +            snprintf(buf, sizeof(buf), "%d",
 +                     o->audio_channels[o->nb_audio_channels - 1].u.i);
 +            av_dict_set(&format_opts, "channels", buf, 0);
 +        }
 +    }
 +    if (o->nb_frame_rates) {
 +        /* set the format-level framerate option;
 +         * this is important for video grabbers, e.g. x11 */
 +        if (file_iformat && file_iformat->priv_class &&
 +            av_opt_find(&file_iformat->priv_class, "framerate", NULL, 0,
 +                        AV_OPT_SEARCH_FAKE_OBJ)) {
 +            av_dict_set(&format_opts, "framerate",
 +                        o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
 +        }
 +    }
 +    if (o->nb_frame_sizes) {
 +        av_dict_set(&format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
 +    }
 +    if (o->nb_frame_pix_fmts)
 +        av_dict_set(&format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
 +
 +    MATCH_PER_TYPE_OPT(codec_names, str,    video_codec_name, ic, "v");
 +    MATCH_PER_TYPE_OPT(codec_names, str,    audio_codec_name, ic, "a");
 +    MATCH_PER_TYPE_OPT(codec_names, str, subtitle_codec_name, ic, "s");
 +
 +    ic->video_codec_id   = video_codec_name ?
 +        find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0)->id : AV_CODEC_ID_NONE;
 +    ic->audio_codec_id   = audio_codec_name ?
 +        find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0)->id : AV_CODEC_ID_NONE;
 +    ic->subtitle_codec_id= subtitle_codec_name ?
 +        find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0)->id : AV_CODEC_ID_NONE;
 +    ic->flags |= AVFMT_FLAG_NONBLOCK;
 +    ic->interrupt_callback = int_cb;
 +
 +    /* open the input file with generic avformat function */
 +    err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
 +    if (err < 0) {
 +        print_error(filename, err);
-         exit_program(1);
++        exit(1);
 +    }
 +    assert_avoptions(format_opts);
 +
 +    /* apply forced codec ids */
 +    for (i = 0; i < ic->nb_streams; i++)
 +        choose_decoder(o, ic, ic->streams[i]);
 +
 +    /* Set AVCodecContext options for avformat_find_stream_info */
 +    opts = setup_find_stream_info_opts(ic, codec_opts);
 +    orig_nb_streams = ic->nb_streams;
 +
 +    /* If not enough info to get the stream parameters, we decode the
 +       first frames to get it. (used in mpeg case for example) */
 +    ret = avformat_find_stream_info(ic, opts);
 +    if (ret < 0) {
 +        av_log(NULL, AV_LOG_FATAL, "%s: could not find codec parameters\n", filename);
 +        avformat_close_input(&ic);
-         exit_program(1);
++        exit(1);
 +    }
 +
 +    timestamp = o->start_time;
 +    /* add the stream start time */
 +    if (ic->start_time != AV_NOPTS_VALUE)
 +        timestamp += ic->start_time;
 +
 +    /* if seeking requested, we execute it */
 +    if (o->start_time != 0) {
 +        ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
 +        if (ret < 0) {
 +            av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
 +                   filename, (double)timestamp / AV_TIME_BASE);
 +        }
 +    }
 +
 +    /* update the current parameters so that they match the one of the input stream */
 +    add_input_streams(o, ic);
 +
 +    /* dump the file content */
 +    av_dump_format(ic, nb_input_files, filename, 0);
 +
 +    input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
 +    if (!(input_files[nb_input_files - 1] = av_mallocz(sizeof(*input_files[0]))))
-         exit_program(1);
++        exit(1);
 +
 +    input_files[nb_input_files - 1]->ctx        = ic;
 +    input_files[nb_input_files - 1]->ist_index  = nb_input_streams - ic->nb_streams;
 +    input_files[nb_input_files - 1]->ts_offset  = o->input_ts_offset - (copy_ts ? 0 : timestamp);
 +    input_files[nb_input_files - 1]->nb_streams = ic->nb_streams;
 +    input_files[nb_input_files - 1]->rate_emu   = o->rate_emu;
 +
 +    for (i = 0; i < o->nb_dump_attachment; i++) {
 +        int j;
 +
 +        for (j = 0; j < ic->nb_streams; j++) {
 +            AVStream *st = ic->streams[j];
 +
 +            if (check_stream_specifier(ic, st, o->dump_attachment[i].specifier) == 1)
 +                dump_attachment(st, o->dump_attachment[i].u.str);
 +        }
 +    }
 +
 +    for (i = 0; i < orig_nb_streams; i++)
 +        av_dict_free(&opts[i]);
 +    av_freep(&opts);
 +
 +    reset_options(o, 1);
 +    return 0;
 +}
 +
 +static uint8_t *get_line(AVIOContext *s)
 +{
 +    AVIOContext *line;
 +    uint8_t *buf;
 +    char c;
 +
 +    if (avio_open_dyn_buf(&line) < 0) {
 +        av_log(NULL, AV_LOG_FATAL, "Could not alloc buffer for reading preset.\n");
-         exit_program(1);
++        exit(1);
 +    }
 +
 +    while ((c = avio_r8(s)) && c != '\n')
 +        avio_w8(line, c);
 +    avio_w8(line, 0);
 +    avio_close_dyn_buf(line, &buf);
 +
 +    return buf;
 +}
 +
 +static int get_preset_file_2(const char *preset_name, const char *codec_name, AVIOContext **s)
 +{
 +    int i, ret = 1;
 +    char filename[1000];
 +    const char *base[3] = { getenv("AVCONV_DATADIR"),
 +                            getenv("HOME"),
 +                            AVCONV_DATADIR,
 +                            };
 +
 +    for (i = 0; i < FF_ARRAY_ELEMS(base) && ret; i++) {
 +        if (!base[i])
 +            continue;
 +        if (codec_name) {
 +            snprintf(filename, sizeof(filename), "%s%s/%s-%s.avpreset", base[i],
 +                     i != 1 ? "" : "/.avconv", codec_name, preset_name);
 +            ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
 +        }
 +        if (ret) {
 +            snprintf(filename, sizeof(filename), "%s%s/%s.avpreset", base[i],
 +                     i != 1 ? "" : "/.avconv", preset_name);
 +            ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
 +        }
 +    }
 +    return ret;
 +}
 +
 +static void choose_encoder(OptionsContext *o, AVFormatContext *s, OutputStream *ost)
 +{
 +    char *codec_name = NULL;
 +
 +    MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, ost->st);
 +    if (!codec_name) {
 +        ost->st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename,
 +                                                  NULL, ost->st->codec->codec_type);
 +        ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
 +    } else if (!strcmp(codec_name, "copy"))
 +        ost->stream_copy = 1;
 +    else {
 +        ost->enc = find_codec_or_die(codec_name, ost->st->codec->codec_type, 1);
 +        ost->st->codec->codec_id = ost->enc->id;
 +    }
 +}
 +
 +static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type, int source_index)
 +{
 +    OutputStream *ost;
 +    AVStream *st = avformat_new_stream(oc, NULL);
 +    int idx      = oc->nb_streams - 1, ret = 0;
 +    char *bsf = NULL, *next, *codec_tag = NULL;
 +    AVBitStreamFilterContext *bsfc, *bsfc_prev = NULL;
 +    double qscale = -1;
 +    char *buf = NULL, *arg = NULL, *preset = NULL;
 +    AVIOContext *s = NULL;
 +
 +    if (!st) {
 +        av_log(NULL, AV_LOG_FATAL, "Could not alloc stream.\n");
-         exit_program(1);
++        exit(1);
 +    }
 +
 +    if (oc->nb_streams - 1 < o->nb_streamid_map)
 +        st->id = o->streamid_map[oc->nb_streams - 1];
 +
 +    output_streams = grow_array(output_streams, sizeof(*output_streams), &nb_output_streams,
 +                                nb_output_streams + 1);
 +    if (!(ost = av_mallocz(sizeof(*ost))))
-                 exit_program(1);
++        exit(1);
 +    output_streams[nb_output_streams - 1] = ost;
 +
 +    ost->file_index = nb_output_files;
 +    ost->index      = idx;
 +    ost->st         = st;
 +    st->codec->codec_type = type;
 +    choose_encoder(o, oc, ost);
 +    if (ost->enc) {
 +        ost->opts  = filter_codec_opts(codec_opts, ost->enc->id, oc, st, ost->enc);
 +    }
 +
 +    avcodec_get_context_defaults3(st->codec, ost->enc);
 +    st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
 +
 +    MATCH_PER_STREAM_OPT(presets, str, preset, oc, st);
 +    if (preset && (!(ret = get_preset_file_2(preset, ost->enc->name, &s)))) {
 +        do  {
 +            buf = get_line(s);
 +            if (!buf[0] || buf[0] == '#') {
 +                av_free(buf);
 +                continue;
 +            }
 +            if (!(arg = strchr(buf, '='))) {
 +                av_log(NULL, AV_LOG_FATAL, "Invalid line found in the preset file.\n");
-         exit_program(1);
++                exit(1);
 +            }
 +            *arg++ = 0;
 +            av_dict_set(&ost->opts, buf, arg, AV_DICT_DONT_OVERWRITE);
 +            av_free(buf);
 +        } while (!s->eof_reached);
 +        avio_close(s);
 +    }
 +    if (ret) {
 +        av_log(NULL, AV_LOG_FATAL,
 +               "Preset %s specified for stream %d:%d, but could not be opened.\n",
 +               preset, ost->file_index, ost->index);
-             exit_program(1);
++        exit(1);
 +    }
 +
 +    ost->max_frames = INT64_MAX;
 +    MATCH_PER_STREAM_OPT(max_frames, i64, ost->max_frames, oc, st);
 +
 +    ost->copy_prior_start = -1;
 +    MATCH_PER_STREAM_OPT(copy_prior_start, i, ost->copy_prior_start, oc ,st);
 +
 +    MATCH_PER_STREAM_OPT(bitstream_filters, str, bsf, oc, st);
 +    while (bsf) {
 +        if (next = strchr(bsf, ','))
 +            *next++ = 0;
 +        if (!(bsfc = av_bitstream_filter_init(bsf))) {
 +            av_log(NULL, AV_LOG_FATAL, "Unknown bitstream filter %s\n", bsf);
-             exit_program(1);
++            exit(1);
 +        }
 +        if (bsfc_prev)
 +            bsfc_prev->next = bsfc;
 +        else
 +            ost->bitstream_filters = bsfc;
 +
 +        bsfc_prev = bsfc;
 +        bsf       = next;
 +    }
 +
 +    MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, oc, st);
 +    if (codec_tag) {
 +        uint32_t tag = strtol(codec_tag, &next, 0);
 +        if (*next)
 +            tag = AV_RL32(codec_tag);
 +        st->codec->codec_tag = tag;
 +    }
 +
 +    MATCH_PER_STREAM_OPT(qscale, dbl, qscale, oc, st);
 +    if (qscale >= 0 || same_quant) {
 +        st->codec->flags |= CODEC_FLAG_QSCALE;
 +        st->codec->global_quality = FF_QP2LAMBDA * qscale;
 +    }
 +
 +    if (oc->oformat->flags & AVFMT_GLOBALHEADER)
 +        st->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;
 +
 +    av_opt_get_int(sws_opts, "sws_flags", 0, &ost->sws_flags);
 +    av_opt_get_int   (swr_opts, "dither_method", 0, &ost->swr_dither_method);
 +    av_opt_get_double(swr_opts, "dither_scale" , 0, &ost->swr_dither_scale);
 +
 +    ost->source_index = source_index;
 +    if (source_index >= 0) {
 +        ost->sync_ist = input_streams[source_index];
 +        input_streams[source_index]->discard = 0;
 +        input_streams[source_index]->st->discard = AVDISCARD_NONE;
 +    }
 +
 +    return ost;
 +}
 +
 +static void parse_matrix_coeffs(uint16_t *dest, const char *str)
 +{
 +    int i;
 +    const char *p = str;
 +    for (i = 0;; i++) {
 +        dest[i] = atoi(p);
 +        if (i == 63)
 +            break;
 +        p = strchr(p, ',');
 +        if (!p) {
 +            av_log(NULL, AV_LOG_FATAL, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
-         exit_program(1);
++            exit(1);
 +        }
 +        p++;
 +    }
 +}
 +
 +static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
 +{
 +    AVStream *st;
 +    OutputStream *ost;
 +    AVCodecContext *video_enc;
 +    char *frame_rate = NULL;
 +
 +    ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO, source_index);
 +    st  = ost->st;
 +    video_enc = st->codec;
 +
 +    MATCH_PER_STREAM_OPT(frame_rates, str, frame_rate, oc, st);
 +    if (frame_rate && av_parse_video_rate(&ost->frame_rate, frame_rate) < 0) {
 +        av_log(NULL, AV_LOG_FATAL, "Invalid framerate value: %s\n", frame_rate);
-             exit_program(1);
++        exit(1);
 +    }
 +
 +    if (!ost->stream_copy) {
 +        const char *p = NULL;
 +        char *frame_size = NULL;
 +        char *frame_aspect_ratio = NULL, *frame_pix_fmt = NULL;
 +        char *intra_matrix = NULL, *inter_matrix = NULL;
 +        const char *filters = "null";
 +        int do_pass = 0;
 +        int i;
 +
 +        MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
 +        if (frame_size && av_parse_video_size(&video_enc->width, &video_enc->height, frame_size) < 0) {
 +            av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
-                 exit_program(1);
++            exit(1);
 +        }
 +
 +        MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
 +        if (frame_aspect_ratio) {
 +            AVRational q;
 +            if (av_parse_ratio(&q, frame_aspect_ratio, 255, 0, NULL) < 0 ||
 +                q.num <= 0 || q.den <= 0) {
 +                av_log(NULL, AV_LOG_FATAL, "Invalid aspect ratio: %s\n", frame_aspect_ratio);
-             exit_program(1);
++                exit(1);
 +            }
 +            ost->frame_aspect_ratio = av_q2d(q);
 +        }
 +
 +        video_enc->bits_per_raw_sample = frame_bits_per_raw_sample;
 +        MATCH_PER_STREAM_OPT(frame_pix_fmts, str, frame_pix_fmt, oc, st);
 +        if (frame_pix_fmt && *frame_pix_fmt == '+') {
 +            ost->keep_pix_fmt = 1;
 +            if (!*++frame_pix_fmt)
 +                frame_pix_fmt = NULL;
 +        }
 +        if (frame_pix_fmt && (video_enc->pix_fmt = av_get_pix_fmt(frame_pix_fmt)) == PIX_FMT_NONE) {
 +            av_log(NULL, AV_LOG_FATAL, "Unknown pixel format requested: %s.\n", frame_pix_fmt);
-                 exit_program(1);
++            exit(1);
 +        }
 +        st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
 +
 +        if (intra_only)
 +            video_enc->gop_size = 0;
 +        MATCH_PER_STREAM_OPT(intra_matrices, str, intra_matrix, oc, st);
 +        if (intra_matrix) {
 +            if (!(video_enc->intra_matrix = av_mallocz(sizeof(*video_enc->intra_matrix) * 64))) {
 +                av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
-                 exit_program(1);
++                exit(1);
 +            }
 +            parse_matrix_coeffs(video_enc->intra_matrix, intra_matrix);
 +        }
 +        MATCH_PER_STREAM_OPT(inter_matrices, str, inter_matrix, oc, st);
 +        if (inter_matrix) {
 +            if (!(video_enc->inter_matrix = av_mallocz(sizeof(*video_enc->inter_matrix) * 64))) {
 +                av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for inter matrix.\n");
-                 exit_program(1);
++                exit(1);
 +            }
 +            parse_matrix_coeffs(video_enc->inter_matrix, inter_matrix);
 +        }
 +
 +        MATCH_PER_STREAM_OPT(rc_overrides, str, p, oc, st);
 +        for (i = 0; p; i++) {
 +            int start, end, q;
 +            int e = sscanf(p, "%d,%d,%d", &start, &end, &q);
 +            if (e != 3) {
 +                av_log(NULL, AV_LOG_FATAL, "error parsing rc_override\n");
-             exit_program(1);
++                exit(1);
 +            }
 +            /* FIXME realloc failure */
 +            video_enc->rc_override =
 +                av_realloc(video_enc->rc_override,
 +                           sizeof(RcOverride) * (i + 1));
 +            video_enc->rc_override[i].start_frame = start;
 +            video_enc->rc_override[i].end_frame   = end;
 +            if (q > 0) {
 +                video_enc->rc_override[i].qscale         = q;
 +                video_enc->rc_override[i].quality_factor = 1.0;
 +            }
 +            else {
 +                video_enc->rc_override[i].qscale         = 0;
 +                video_enc->rc_override[i].quality_factor = -q/100.0;
 +            }
 +            p = strchr(p, '/');
 +            if (p) p++;
 +        }
 +        video_enc->rc_override_count = i;
 +        if (!video_enc->rc_initial_buffer_occupancy)
 +            video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size * 3 / 4;
 +        video_enc->intra_dc_precision = intra_dc_precision - 8;
 +
 +        if (do_psnr)
 +            video_enc->flags|= CODEC_FLAG_PSNR;
 +
 +        /* two pass mode */
 +        MATCH_PER_STREAM_OPT(pass, i, do_pass, oc, st);
 +        if (do_pass) {
 +            if (do_pass & 1) {
 +                video_enc->flags |= CODEC_FLAG_PASS1;
 +            }
 +            if (do_pass & 2) {
 +                video_enc->flags |= CODEC_FLAG_PASS2;
 +            }
 +        }
 +
 +        MATCH_PER_STREAM_OPT(passlogfiles, str, ost->logfile_prefix, oc, st);
 +        if (ost->logfile_prefix &&
 +            !(ost->logfile_prefix = av_strdup(ost->logfile_prefix)))
-             exit_program(1);
++            exit(1);
 +
 +        MATCH_PER_STREAM_OPT(forced_key_frames, str, ost->forced_keyframes, oc, st);
 +        if (ost->forced_keyframes)
 +            ost->forced_keyframes = av_strdup(ost->forced_keyframes);
 +
 +        MATCH_PER_STREAM_OPT(force_fps, i, ost->force_fps, oc, st);
 +
 +        ost->top_field_first = -1;
 +        MATCH_PER_STREAM_OPT(top_field_first, i, ost->top_field_first, oc, st);
 +
 +        MATCH_PER_STREAM_OPT(filters, str, filters, oc, st);
 +        ost->avfilter = av_strdup(filters);
 +    } else {
 +        MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc ,st);
 +    }
 +
 +    return ost;
 +}
 +
 +static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
 +{
 +    int n;
 +    AVStream *st;
 +    OutputStream *ost;
 +    AVCodecContext *audio_enc;
 +
 +    ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO, source_index);
 +    st  = ost->st;
 +
 +    audio_enc = st->codec;
 +    audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
 +
 +    if (!ost->stream_copy) {
 +        char *sample_fmt = NULL;
 +        const char *filters = "anull";
 +
 +        MATCH_PER_STREAM_OPT(audio_channels, i, audio_enc->channels, oc, st);
 +
 +        MATCH_PER_STREAM_OPT(sample_fmts, str, sample_fmt, oc, st);
 +        if (sample_fmt &&
 +            (audio_enc->sample_fmt = av_get_sample_fmt(sample_fmt)) == AV_SAMPLE_FMT_NONE) {
 +            av_log(NULL, AV_LOG_FATAL, "Invalid sample format '%s'\n", sample_fmt);
-         exit_program(1);
++            exit(1);
 +        }
 +
 +        MATCH_PER_STREAM_OPT(audio_sample_rate, i, audio_enc->sample_rate, oc, st);
 +
 +        MATCH_PER_STREAM_OPT(filters, str, filters, oc, st);
 +
 +        av_assert1(filters);
 +        ost->avfilter = av_strdup(filters);
 +
 +        /* check for channel mapping for this audio stream */
 +        for (n = 0; n < o->nb_audio_channel_maps; n++) {
 +            AudioChannelMap *map = &o->audio_channel_maps[n];
 +            InputStream *ist = input_streams[ost->source_index];
 +            if ((map->channel_idx == -1 || (ist->file_index == map->file_idx && ist->st->index == map->stream_idx)) &&
 +                (map->ofile_idx   == -1 || ost->file_index == map->ofile_idx) &&
 +                (map->ostream_idx == -1 || ost->st->index  == map->ostream_idx)) {
 +                if (ost->audio_channels_mapped < FF_ARRAY_ELEMS(ost->audio_channels_map))
 +                    ost->audio_channels_map[ost->audio_channels_mapped++] = map->channel_idx;
 +                else
 +                    av_log(NULL, AV_LOG_FATAL, "Max channel mapping for output %d.%d reached\n",
 +                           ost->file_index, ost->st->index);
 +            }
 +        }
 +    }
 +
 +    return ost;
 +}
 +
 +static OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
 +{
 +    OutputStream *ost;
 +
 +    ost = new_output_stream(o, oc, AVMEDIA_TYPE_DATA, source_index);
 +    if (!ost->stream_copy) {
 +        av_log(NULL, AV_LOG_FATAL, "Data stream encoding not supported yet (only streamcopy)\n");
-             exit_program(1);
++        exit(1);
 +    }
 +
 +    return ost;
 +}
 +
 +static OutputStream *new_attachment_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
 +{
 +    OutputStream *ost = new_output_stream(o, oc, AVMEDIA_TYPE_ATTACHMENT, source_index);
 +    ost->stream_copy = 1;
 +    return ost;
 +}
 +
 +static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
 +{
 +    AVStream *st;
 +    OutputStream *ost;
 +    AVCodecContext *subtitle_enc;
 +
 +    ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE, source_index);
 +    st  = ost->st;
 +    subtitle_enc = st->codec;
 +
 +    subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
 +
 +    MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc, st);
 +
 +    if (!ost->stream_copy) {
 +        char *frame_size = NULL;
 +
 +        MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
 +        if (frame_size && av_parse_video_size(&subtitle_enc->width, &subtitle_enc->height, frame_size) < 0) {
 +            av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
-         exit_program(1);
++            exit(1);
 +        }
 +    }
 +
 +    return ost;
 +}
 +
 +/* arg format is "output-stream-index:streamid-value". */
 +static int opt_streamid(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    int idx;
 +    char *p;
 +    char idx_str[16];
 +
 +    av_strlcpy(idx_str, arg, sizeof(idx_str));
 +    p = strchr(idx_str, ':');
 +    if (!p) {
 +        av_log(NULL, AV_LOG_FATAL,
 +               "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
 +               arg, opt);
-         exit_program(1);
++        exit(1);
 +    }
 +    *p++ = '\0';
 +    idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, MAX_STREAMS-1);
 +    o->streamid_map = grow_array(o->streamid_map, sizeof(*o->streamid_map), &o->nb_streamid_map, idx+1);
 +    o->streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
 +    return 0;
 +}
 +
 +static int copy_chapters(InputFile *ifile, OutputFile *ofile, int copy_metadata)
 +{
 +    AVFormatContext *is = ifile->ctx;
 +    AVFormatContext *os = ofile->ctx;
 +    int i;
 +
 +    for (i = 0; i < is->nb_chapters; i++) {
 +        AVChapter *in_ch = is->chapters[i], *out_ch;
 +        int64_t ts_off   = av_rescale_q(ofile->start_time - ifile->ts_offset,
 +                                       AV_TIME_BASE_Q, in_ch->time_base);
 +        int64_t rt       = (ofile->recording_time == INT64_MAX) ? INT64_MAX :
 +                           av_rescale_q(ofile->recording_time, AV_TIME_BASE_Q, in_ch->time_base);
 +
 +
 +        if (in_ch->end < ts_off)
 +            continue;
 +        if (rt != INT64_MAX && in_ch->start > rt + ts_off)
 +            break;
 +
 +        out_ch = av_mallocz(sizeof(AVChapter));
 +        if (!out_ch)
 +            return AVERROR(ENOMEM);
 +
 +        out_ch->id        = in_ch->id;
 +        out_ch->time_base = in_ch->time_base;
 +        out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
 +        out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
 +
 +        if (copy_metadata)
 +            av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
 +
 +        os->nb_chapters++;
 +        os->chapters = av_realloc_f(os->chapters, os->nb_chapters, sizeof(AVChapter));
 +        if (!os->chapters)
 +            return AVERROR(ENOMEM);
 +        os->chapters[os->nb_chapters - 1] = out_ch;
 +    }
 +    return 0;
 +}
 +
 +static int read_ffserver_streams(OptionsContext *o, AVFormatContext *s, const char *filename)
 +{
 +    int i, err;
 +    AVFormatContext *ic = avformat_alloc_context();
 +
 +    ic->interrupt_callback = int_cb;
 +    err = avformat_open_input(&ic, filename, NULL, NULL);
 +    if (err < 0)
 +        return err;
 +    /* copy stream format */
 +    for(i=0;i<ic->nb_streams;i++) {
 +        AVStream *st;
 +        OutputStream *ost;
 +        AVCodec *codec;
 +        AVCodecContext *avctx;
 +
 +        codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
 +        ost   = new_output_stream(o, s, codec->type, -1);
 +        st    = ost->st;
 +        avctx = st->codec;
 +        ost->enc = codec;
 +
 +        // FIXME: a more elegant solution is needed
 +        memcpy(st, ic->streams[i], sizeof(AVStream));
 +        st->cur_dts = 0;
 +        st->info = av_malloc(sizeof(*st->info));
 +        memcpy(st->info, ic->streams[i]->info, sizeof(*st->info));
 +        st->codec= avctx;
 +        avcodec_copy_context(st->codec, ic->streams[i]->codec);
 +
 +        if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && !ost->stream_copy)
 +            choose_sample_fmt(st, codec);
 +        else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && !ost->stream_copy)
 +            choose_pixel_fmt(st, codec, st->codec->pix_fmt);
 +    }
 +
 +    avformat_close_input(&ic);
 +    return 0;
 +}
 +
 +static void init_output_filter(OutputFilter *ofilter, OptionsContext *o,
 +                               AVFormatContext *oc)
 +{
 +    OutputStream *ost;
 +
 +    switch (avfilter_pad_get_type(ofilter->out_tmp->filter_ctx->output_pads,
 +                                  ofilter->out_tmp->pad_idx)) {
 +    case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc, -1); break;
 +    case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc, -1); break;
 +    default:
 +        av_log(NULL, AV_LOG_FATAL, "Only video and audio filters are supported "
 +               "currently.\n");
-         exit_program(1);
++        exit(1);
 +    }
 +
 +    ost->source_index = -1;
 +    ost->filter       = ofilter;
 +
 +    ofilter->ost      = ost;
 +
 +    if (ost->stream_copy) {
 +        av_log(NULL, AV_LOG_ERROR, "Streamcopy requested for output stream %d:%d, "
 +               "which is fed from a complex filtergraph. Filtering and streamcopy "
 +               "cannot be used together.\n", ost->file_index, ost->index);
-         exit_program(1);
++        exit(1);
 +    }
 +
 +    if (configure_output_filter(ofilter->graph, ofilter, ofilter->out_tmp) < 0) {
 +        av_log(NULL, AV_LOG_FATAL, "Error configuring filter.\n");
-         exit_program(1);
++        exit(1);
 +    }
 +    avfilter_inout_free(&ofilter->out_tmp);
 +}
 +
 +static int configure_complex_filters(void)
 +{
 +    int i, ret = 0;
 +
 +    for (i = 0; i < nb_filtergraphs; i++)
 +        if (!filtergraphs[i]->graph &&
 +            (ret = configure_filtergraph(filtergraphs[i])) < 0)
 +            return ret;
 +    return 0;
 +}
 +
 +void opt_output_file(void *optctx, const char *filename)
 +{
 +    OptionsContext *o = optctx;
 +    AVFormatContext *oc;
 +    int i, j, err;
 +    AVOutputFormat *file_oformat;
 +    OutputStream *ost;
 +    InputStream  *ist;
 +
 +    if (configure_complex_filters() < 0) {
 +        av_log(NULL, AV_LOG_FATAL, "Error configuring filters.\n");
-         exit_program(1);
++        exit(1);
 +    }
 +
 +    if (!strcmp(filename, "-"))
 +        filename = "pipe:";
 +
 +    err = avformat_alloc_output_context2(&oc, NULL, o->format, filename);
 +    if (!oc) {
 +        print_error(filename, err);
-             exit_program(1);
++        exit(1);
 +    }
 +    file_oformat= oc->oformat;
 +    oc->interrupt_callback = int_cb;
 +
 +    /* create streams for all unlabeled output pads */
 +    for (i = 0; i < nb_filtergraphs; i++) {
 +        FilterGraph *fg = filtergraphs[i];
 +        for (j = 0; j < fg->nb_outputs; j++) {
 +            OutputFilter *ofilter = fg->outputs[j];
 +
 +            if (!ofilter->out_tmp || ofilter->out_tmp->name)
 +                continue;
 +
 +            switch (avfilter_pad_get_type(ofilter->out_tmp->filter_ctx->output_pads,
 +                                          ofilter->out_tmp->pad_idx)) {
 +            case AVMEDIA_TYPE_VIDEO:    o->video_disable    = 1; break;
 +            case AVMEDIA_TYPE_AUDIO:    o->audio_disable    = 1; break;
 +            case AVMEDIA_TYPE_SUBTITLE: o->subtitle_disable = 1; break;
 +            }
 +            init_output_filter(ofilter, o, oc);
 +        }
 +    }
 +
 +    if (!strcmp(file_oformat->name, "ffm") &&
 +        av_strstart(filename, "http:", NULL)) {
 +        int j;
 +        /* special case for files sent to ffserver: we get the stream
 +           parameters from ffserver */
 +        int err = read_ffserver_streams(o, oc, filename);
 +        if (err < 0) {
 +            print_error(filename, err);
-                 exit_program(1);
++            exit(1);
 +        }
 +        for(j = nb_output_streams - oc->nb_streams; j < nb_output_streams; j++) {
 +            ost = output_streams[j];
 +            for (i = 0; i < nb_input_streams; i++) {
 +                ist = input_streams[i];
 +                if(ist->st->codec->codec_type == ost->st->codec->codec_type){
 +                    ost->sync_ist= ist;
 +                    ost->source_index= i;
 +                    if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) ost->avfilter = av_strdup("anull");
 +                    if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) ost->avfilter = av_strdup("null");
 +                    ist->discard = 0;
 +                    ist->st->discard = AVDISCARD_NONE;
 +                    break;
 +                }
 +            }
 +            if(!ost->sync_ist){
 +                av_log(NULL, AV_LOG_FATAL, "Missing %s stream which is required by this ffm\n", av_get_media_type_string(ost->st->codec->codec_type));
-                     exit_program(1);
++                exit(1);
 +            }
 +        }
 +    } else if (!o->nb_stream_maps) {
 +        char *subtitle_codec_name = NULL;
 +        /* pick the "best" stream of each type */
 +
 +        /* video: highest resolution */
 +        if (!o->video_disable && oc->oformat->video_codec != AV_CODEC_ID_NONE) {
 +            int area = 0, idx = -1;
 +            int qcr = avformat_query_codec(oc->oformat, oc->oformat->video_codec, 0);
 +            for (i = 0; i < nb_input_streams; i++) {
 +                int new_area;
 +                ist = input_streams[i];
 +                new_area = ist->st->codec->width * ist->st->codec->height;
 +                if((qcr!=MKTAG('A', 'P', 'I', 'C')) && (ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
 +                    new_area = 1;
 +                if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
 +                    new_area > area) {
 +                    if((qcr==MKTAG('A', 'P', 'I', 'C')) && !(ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
 +                        continue;
 +                    area = new_area;
 +                    idx = i;
 +                }
 +            }
 +            if (idx >= 0)
 +                new_video_stream(o, oc, idx);
 +        }
 +
 +        /* audio: most channels */
 +        if (!o->audio_disable && oc->oformat->audio_codec != AV_CODEC_ID_NONE) {
 +            int channels = 0, idx = -1;
 +            for (i = 0; i < nb_input_streams; i++) {
 +                ist = input_streams[i];
 +                if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
 +                    ist->st->codec->channels > channels) {
 +                    channels = ist->st->codec->channels;
 +                    idx = i;
 +                }
 +            }
 +            if (idx >= 0)
 +                new_audio_stream(o, oc, idx);
 +        }
 +
 +        /* subtitles: pick first */
 +        MATCH_PER_TYPE_OPT(codec_names, str, subtitle_codec_name, oc, "s");
 +        if (!o->subtitle_disable && (oc->oformat->subtitle_codec != AV_CODEC_ID_NONE || subtitle_codec_name)) {
 +            for (i = 0; i < nb_input_streams; i++)
 +                if (input_streams[i]->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
 +                    new_subtitle_stream(o, oc, i);
 +                    break;
 +                }
 +        }
 +        /* do something with data? */
 +    } else {
 +        for (i = 0; i < o->nb_stream_maps; i++) {
 +            StreamMap *map = &o->stream_maps[i];
 +            int src_idx = input_files[map->file_index]->ist_index + map->stream_index;
 +
 +            if (map->disabled)
 +                continue;
 +
 +            if (map->linklabel) {
 +                FilterGraph *fg;
 +                OutputFilter *ofilter = NULL;
 +                int j, k;
 +
 +                for (j = 0; j < nb_filtergraphs; j++) {
 +                    fg = filtergraphs[j];
 +                    for (k = 0; k < fg->nb_outputs; k++) {
 +                        AVFilterInOut *out = fg->outputs[k]->out_tmp;
 +                        if (out && !strcmp(out->name, map->linklabel)) {
 +                            ofilter = fg->outputs[k];
 +                            goto loop_end;
 +                        }
 +                    }
 +                }
 +loop_end:
 +                if (!ofilter) {
 +                    av_log(NULL, AV_LOG_FATAL, "Output with label '%s' does not exist "
 +                           "in any defined filter graph.\n", map->linklabel);
-                     exit_program(1);
++                    exit(1);
 +                }
 +                init_output_filter(ofilter, o, oc);
 +            } else {
 +                ist = input_streams[input_files[map->file_index]->ist_index + map->stream_index];
 +                if(o->subtitle_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE)
 +                    continue;
 +                if(o->   audio_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
 +                    continue;
 +                if(o->   video_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
 +                    continue;
 +                if(o->    data_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_DATA)
 +                    continue;
 +
 +                switch (ist->st->codec->codec_type) {
 +                case AVMEDIA_TYPE_VIDEO:      ost = new_video_stream     (o, oc, src_idx); break;
 +                case AVMEDIA_TYPE_AUDIO:      ost = new_audio_stream     (o, oc, src_idx); break;
 +                case AVMEDIA_TYPE_SUBTITLE:   ost = new_subtitle_stream  (o, oc, src_idx); break;
 +                case AVMEDIA_TYPE_DATA:       ost = new_data_stream      (o, oc, src_idx); break;
 +                case AVMEDIA_TYPE_ATTACHMENT: ost = new_attachment_stream(o, oc, src_idx); break;
 +                default:
 +                    av_log(NULL, AV_LOG_FATAL, "Cannot map stream #%d:%d - unsupported type.\n",
 +                           map->file_index, map->stream_index);
-                 exit_program(1);
++                    exit(1);
 +                }
 +            }
 +        }
 +    }
 +
 +
 +    for (i = nb_output_streams - oc->nb_streams; i < nb_output_streams; i++) { //for all streams of this output file
 +        AVDictionaryEntry *e;
 +        ost = output_streams[i];
 +
 +        if (   ost->stream_copy
 +            && (e = av_dict_get(codec_opts, "flags", NULL, AV_DICT_IGNORE_SUFFIX))
 +            && (!e->key[5] || check_stream_specifier(oc, ost->st, e->key+6)))
 +            if (av_opt_set(ost->st->codec, "flags", e->value, 0) < 0)
-             exit_program(1);
++                exit(1);
 +    }
 +
 +    /* handle attached files */
 +    for (i = 0; i < o->nb_attachments; i++) {
 +        AVIOContext *pb;
 +        uint8_t *attachment;
 +        const char *p;
 +        int64_t len;
 +
 +        if ((err = avio_open2(&pb, o->attachments[i], AVIO_FLAG_READ, &int_cb, NULL)) < 0) {
 +            av_log(NULL, AV_LOG_FATAL, "Could not open attachment file %s.\n",
 +                   o->attachments[i]);
-             exit_program(1);
++            exit(1);
 +        }
 +        if ((len = avio_size(pb)) <= 0) {
 +            av_log(NULL, AV_LOG_FATAL, "Could not get size of the attachment %s.\n",
 +                   o->attachments[i]);
-             exit_program(1);
++            exit(1);
 +        }
 +        if (!(attachment = av_malloc(len))) {
 +            av_log(NULL, AV_LOG_FATAL, "Attachment %s too large to fit into memory.\n",
 +                   o->attachments[i]);
-         exit_program(1);
++            exit(1);
 +        }
 +        avio_read(pb, attachment, len);
 +
 +        ost = new_attachment_stream(o, oc, -1);
 +        ost->stream_copy               = 0;
 +        ost->attachment_filename       = o->attachments[i];
 +        ost->st->codec->extradata      = attachment;
 +        ost->st->codec->extradata_size = len;
 +
 +        p = strrchr(o->attachments[i], '/');
 +        av_dict_set(&ost->st->metadata, "filename", (p && *p) ? p + 1 : o->attachments[i], AV_DICT_DONT_OVERWRITE);
 +        avio_close(pb);
 +    }
 +
 +    output_files = grow_array(output_files, sizeof(*output_files), &nb_output_files, nb_output_files + 1);
 +    if (!(output_files[nb_output_files - 1] = av_mallocz(sizeof(*output_files[0]))))
-             exit_program(1);
++        exit(1);
 +
 +    output_files[nb_output_files - 1]->ctx            = oc;
 +    output_files[nb_output_files - 1]->ost_index      = nb_output_streams - oc->nb_streams;
 +    output_files[nb_output_files - 1]->recording_time = o->recording_time;
 +    if (o->recording_time != INT64_MAX)
 +        oc->duration = o->recording_time;
 +    output_files[nb_output_files - 1]->start_time     = o->start_time;
 +    output_files[nb_output_files - 1]->limit_filesize = o->limit_filesize;
 +    output_files[nb_output_files - 1]->shortest       = o->shortest;
 +    av_dict_copy(&output_files[nb_output_files - 1]->opts, format_opts, 0);
 +
 +    /* check filename in case of an image number is expected */
 +    if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
 +        if (!av_filename_number_test(oc->filename)) {
 +            print_error(oc->filename, AVERROR(EINVAL));
-             exit_program(1);
++            exit(1);
 +        }
 +    }
 +
 +    if (!(oc->oformat->flags & AVFMT_NOFILE)) {
 +        /* test if it already exists to avoid losing precious files */
 +        assert_file_overwrite(filename);
 +
 +        /* open the file */
 +        if ((err = avio_open2(&oc->pb, filename, AVIO_FLAG_WRITE,
 +                              &oc->interrupt_callback,
 +                              &output_files[nb_output_files - 1]->opts)) < 0) {
 +            print_error(filename, err);
-             exit_program(1);
++            exit(1);
 +        }
 +    }
 +
 +    if (o->mux_preload) {
 +        uint8_t buf[64];
 +        snprintf(buf, sizeof(buf), "%d", (int)(o->mux_preload*AV_TIME_BASE));
 +        av_dict_set(&output_files[nb_output_files - 1]->opts, "preload", buf, 0);
 +    }
 +    oc->max_delay = (int)(o->mux_max_delay * AV_TIME_BASE);
 +
 +    /* copy metadata */
 +    for (i = 0; i < o->nb_metadata_map; i++) {
 +        char *p;
 +        int in_file_index = strtol(o->metadata_map[i].u.str, &p, 0);
 +
 +        if (in_file_index >= nb_input_files) {
 +            av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d while processing metadata maps\n", in_file_index);
-             exit_program(1);
++            exit(1);
 +        }
 +        copy_metadata(o->metadata_map[i].specifier, *p ? p + 1 : p, oc, in_file_index >= 0 ? input_files[in_file_index]->ctx : NULL, o);
 +    }
 +
 +    /* copy chapters */
 +    if (o->chapters_input_file >= nb_input_files) {
 +        if (o->chapters_input_file == INT_MAX) {
 +            /* copy chapters from the first input file that has them*/
 +            o->chapters_input_file = -1;
 +            for (i = 0; i < nb_input_files; i++)
 +                if (input_files[i]->ctx->nb_chapters) {
 +                    o->chapters_input_file = i;
 +                    break;
 +                }
 +        } else {
 +            av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d in chapter mapping.\n",
 +                   o->chapters_input_file);
-             exit_program(1);
++            exit(1);
 +        }
 +    }
 +    if (o->chapters_input_file >= 0)
 +        copy_chapters(input_files[o->chapters_input_file], output_files[nb_output_files - 1],
 +                      !o->metadata_chapters_manual);
 +
 +    /* copy global metadata by default */
 +    if (!o->metadata_global_manual && nb_input_files){
 +        av_dict_copy(&oc->metadata, input_files[0]->ctx->metadata,
 +                     AV_DICT_DONT_OVERWRITE);
 +        if(o->recording_time != INT64_MAX)
 +            av_dict_set(&oc->metadata, "duration", NULL, 0);
 +        av_dict_set(&oc->metadata, "creation_time", NULL, 0);
 +    }
 +    if (!o->metadata_streams_manual)
 +        for (i = output_files[nb_output_files - 1]->ost_index; i < nb_output_streams; i++) {
 +            InputStream *ist;
 +            if (output_streams[i]->source_index < 0)         /* this is true e.g. for attached files */
 +                continue;
 +            ist = input_streams[output_streams[i]->source_index];
 +            av_dict_copy(&output_streams[i]->st->metadata, ist->st->metadata, AV_DICT_DONT_OVERWRITE);
 +        }
 +
 +    /* process manually set metadata */
 +    for (i = 0; i < o->nb_metadata; i++) {
 +        AVDictionary **m;
 +        char type, *val;
 +        const char *stream_spec;
 +        int index = 0, j, ret = 0;
 +
 +        val = strchr(o->metadata[i].u.str, '=');
 +        if (!val) {
 +            av_log(NULL, AV_LOG_FATAL, "No '=' character in metadata string %s.\n",
 +                   o->metadata[i].u.str);
-                     exit_program(1);
++            exit(1);
 +        }
 +        *val++ = 0;
 +
 +        parse_meta_type(o->metadata[i].specifier, &type, &index, &stream_spec);
 +        if (type == 's') {
 +            for (j = 0; j < oc->nb_streams; j++) {
 +                if ((ret = check_stream_specifier(oc, oc->streams[j], stream_spec)) > 0) {
 +                    av_dict_set(&oc->streams[j]->metadata, o->metadata[i].u.str, *val ? val : NULL, 0);
 +                } else if (ret < 0)
-                     exit_program(1);
++                    exit(1);
 +            }
 +        }
 +        else {
 +            switch (type) {
 +            case 'g':
 +                m = &oc->metadata;
 +                break;
 +            case 'c':
 +                if (index < 0 || index >= oc->nb_chapters) {
 +                    av_log(NULL, AV_LOG_FATAL, "Invalid chapter index %d in metadata specifier.\n", index);
-                 exit_program(1);
++                    exit(1);
 +                }
 +                m = &oc->chapters[index]->metadata;
 +                break;
 +            default:
 +                av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", o->metadata[i].specifier);
-         exit_program(1);
++                exit(1);
 +            }
 +            av_dict_set(m, o->metadata[i].u.str, *val ? val : NULL, 0);
 +        }
 +    }
 +
 +    reset_options(o, 0);
 +}
 +
 +static int opt_target(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    enum { PAL, NTSC, FILM, UNKNOWN } norm = UNKNOWN;
 +    static const char *const frame_rates[] = { "25", "30000/1001", "24000/1001" };
 +
 +    if (!strncmp(arg, "pal-", 4)) {
 +        norm = PAL;
 +        arg += 4;
 +    } else if (!strncmp(arg, "ntsc-", 5)) {
 +        norm = NTSC;
 +        arg += 5;
 +    } else if (!strncmp(arg, "film-", 5)) {
 +        norm = FILM;
 +        arg += 5;
 +    } else {
 +        /* Try to determine PAL/NTSC by peeking in the input files */
 +        if (nb_input_files) {
 +            int i, j, fr;
 +            for (j = 0; j < nb_input_files; j++) {
 +                for (i = 0; i < input_files[j]->nb_streams; i++) {
 +                    AVCodecContext *c = input_files[j]->ctx->streams[i]->codec;
 +                    if (c->codec_type != AVMEDIA_TYPE_VIDEO)
 +                        continue;
 +                    fr = c->time_base.den * 1000 / c->time_base.num;
 +                    if (fr == 25000) {
 +                        norm = PAL;
 +                        break;
 +                    } else if ((fr == 29970) || (fr == 23976)) {
 +                        norm = NTSC;
 +                        break;
 +                    }
 +                }
 +                if (norm != UNKNOWN)
 +                    break;
 +            }
 +        }
 +        if (norm != UNKNOWN)
 +            av_log(NULL, AV_LOG_INFO, "Assuming %s for target.\n", norm == PAL ? "PAL" : "NTSC");
 +    }
 +
 +    if (norm == UNKNOWN) {
 +        av_log(NULL, AV_LOG_FATAL, "Could not determine norm (PAL/NTSC/NTSC-Film) for target.\n");
 +        av_log(NULL, AV_LOG_FATAL, "Please prefix target with \"pal-\", \"ntsc-\" or \"film-\",\n");
 +        av_log(NULL, AV_LOG_FATAL, "or set a framerate with \"-r xxx\".\n");
-         exit_program(1);
++        exit(1);
 +    }
 +
 +    if (!strcmp(arg, "vcd")) {
 +        opt_video_codec(o, "c:v", "mpeg1video");
 +        opt_audio_codec(o, "c:a", "mp2");
 +        parse_option(o, "f", "vcd", options);
 +
 +        parse_option(o, "s", norm == PAL ? "352x288" : "352x240", options);
 +        parse_option(o, "r", frame_rates[norm], options);
 +        opt_default(NULL, "g", norm == PAL ? "15" : "18");
 +
 +        opt_default(NULL, "b:v", "1150000");
 +        opt_default(NULL, "maxrate", "1150000");
 +        opt_default(NULL, "minrate", "1150000");
 +        opt_default(NULL, "bufsize", "327680"); // 40*1024*8;
 +
 +        opt_default(NULL, "b:a", "224000");
 +        parse_option(o, "ar", "44100", options);
 +        parse_option(o, "ac", "2", options);
 +
 +        opt_default(NULL, "packetsize", "2324");
 +        opt_default(NULL, "muxrate", "1411200"); // 2352 * 75 * 8;
 +
 +        /* We have to offset the PTS, so that it is consistent with the SCR.
 +           SCR starts at 36000, but the first two packs contain only padding
 +           and the first pack from the other stream, respectively, may also have
 +           been written before.
 +           So the real data starts at SCR 36000+3*1200. */
 +        o->mux_preload = (36000 + 3 * 1200) / 90000.0; // 0.44
 +    } else if (!strcmp(arg, "svcd")) {
 +
 +        opt_video_codec(o, "c:v", "mpeg2video");
 +        opt_audio_codec(o, "c:a", "mp2");
 +        parse_option(o, "f", "svcd", options);
 +
 +        parse_option(o, "s", norm == PAL ? "480x576" : "480x480", options);
 +        parse_option(o, "r", frame_rates[norm], options);
 +        parse_option(o, "pix_fmt", "yuv420p", options);
 +        opt_default(NULL, "g", norm == PAL ? "15" : "18");
 +
 +        opt_default(NULL, "b:v", "2040000");
 +        opt_default(NULL, "maxrate", "2516000");
 +        opt_default(NULL, "minrate", "0"); // 1145000;
 +        opt_default(NULL, "bufsize", "1835008"); // 224*1024*8;
 +        opt_default(NULL, "scan_offset", "1");
 +
 +        opt_default(NULL, "b:a", "224000");
 +        parse_option(o, "ar", "44100", options);
 +
 +        opt_default(NULL, "packetsize", "2324");
 +
 +    } else if (!strcmp(arg, "dvd")) {
 +
 +        opt_video_codec(o, "c:v", "mpeg2video");
 +        opt_audio_codec(o, "c:a", "ac3");
 +        parse_option(o, "f", "dvd", options);
 +
 +        parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
 +        parse_option(o, "r", frame_rates[norm], options);
 +        parse_option(o, "pix_fmt", "yuv420p", options);
 +        opt_default(NULL, "g", norm == PAL ? "15" : "18");
 +
 +        opt_default(NULL, "b:v", "6000000");
 +        opt_default(NULL, "maxrate", "9000000");
 +        opt_default(NULL, "minrate", "0"); // 1500000;
 +        opt_default(NULL, "bufsize", "1835008"); // 224*1024*8;
 +
 +        opt_default(NULL, "packetsize", "2048");  // from www.mpucoder.com: DVD sectors contain 2048 bytes of data, this is also the size of one pack.
 +        opt_default(NULL, "muxrate", "10080000"); // from mplex project: data_rate = 1260000. mux_rate = data_rate * 8
 +
 +        opt_default(NULL, "b:a", "448000");
 +        parse_option(o, "ar", "48000", options);
 +
 +    } else if (!strncmp(arg, "dv", 2)) {
 +
 +        parse_option(o, "f", "dv", options);
 +
 +        parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
 +        parse_option(o, "pix_fmt", !strncmp(arg, "dv50", 4) ? "yuv422p" :
 +                          norm == PAL ? "yuv420p" : "yuv411p", options);
 +        parse_option(o, "r", frame_rates[norm], options);
 +
 +        parse_option(o, "ar", "48000", options);
 +        parse_option(o, "ac", "2", options);
 +
 +    } else {
 +        av_log(NULL, AV_LOG_ERROR, "Unknown target: %s\n", arg);
 +        return AVERROR(EINVAL);
 +    }
 +    return 0;
 +}
 +
 +static int opt_vstats_file(void *optctx, const char *opt, const char *arg)
 +{
 +    av_free (vstats_filename);
 +    vstats_filename = av_strdup (arg);
 +    return 0;
 +}
 +
 +static int opt_vstats(void *optctx, const char *opt, const char *arg)
 +{
 +    char filename[40];
 +    time_t today2 = time(NULL);
 +    struct tm *today = localtime(&today2);
 +
 +    snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
 +             today->tm_sec);
 +    return opt_vstats_file(NULL, opt, filename);
 +}
 +
 +static int opt_video_frames(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    return parse_option(o, "frames:v", arg, options);
 +}
 +
 +static int opt_audio_frames(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    return parse_option(o, "frames:a", arg, options);
 +}
 +
 +static int opt_data_frames(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    return parse_option(o, "frames:d", arg, options);
 +}
 +
 +static int opt_preset(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    FILE *f=NULL;
 +    char filename[1000], line[1000], tmp_line[1000];
 +    const char *codec_name = NULL;
 +
 +    tmp_line[0] = *opt;
 +    tmp_line[1] = 0;
 +    MATCH_PER_TYPE_OPT(codec_names, str, codec_name, NULL, tmp_line);
 +
 +    if (!(f = get_preset_file(filename, sizeof(filename), arg, *opt == 'f', codec_name))) {
 +        if(!strncmp(arg, "libx264-lossless", strlen("libx264-lossless"))){
 +            av_log(NULL, AV_LOG_FATAL, "Please use -preset <speed> -qp 0\n");
 +        }else
 +            av_log(NULL, AV_LOG_FATAL, "File for preset '%s' not found\n", arg);
-             exit_program(1);
++        exit(1);
 +}
 +
 +    while (fgets(line, sizeof(line), f)) {
 +        char *key = tmp_line, *value, *endptr;
 +
 +        if (strcspn(line, "#\n\r") == 0)
 +            continue;
 +        strcpy(tmp_line, line);
 +        if (!av_strtok(key,   "=",    &value) ||
 +            !av_strtok(value, "\r\n", &endptr)) {
 +            av_log(NULL, AV_LOG_FATAL, "%s: Invalid syntax: '%s'\n", filename, line);
-             exit_program(1);
++            exit(1);
 +        }
 +        av_log(NULL, AV_LOG_DEBUG, "ffpreset[%s]: set '%s' = '%s'\n", filename, key, value);
 +
 +        if      (!strcmp(key, "acodec")) opt_audio_codec   (o, key, value);
 +        else if (!strcmp(key, "vcodec")) opt_video_codec   (o, key, value);
 +        else if (!strcmp(key, "scodec")) opt_subtitle_codec(o, key, value);
 +        else if (!strcmp(key, "dcodec")) opt_data_codec    (o, key, value);
 +        else if (opt_default(NULL, key, value) < 0) {
 +            av_log(NULL, AV_LOG_FATAL, "%s: Invalid option or argument: '%s', parsed as '%s' = '%s'\n",
 +                   filename, line, key, value);
++            exit(1);
 +        }
 +    }
 +
 +    fclose(f);
 +
 +    return 0;
 +}
 +
 +static int opt_old2new(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    char *s = av_asprintf("%s:%c", opt + 1, *opt);
 +    int ret = parse_option(o, s, arg, options);
 +    av_free(s);
 +    return ret;
 +}
 +
 +static int opt_bitrate(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    if(!strcmp(opt, "b")){
 +        av_log(NULL, AV_LOG_WARNING, "Please use -b:a or -b:v, -b is ambiguous\n");
 +        return parse_option(o, "b:v", arg, options);
 +    }
 +    return opt_default(optctx, opt, arg);
 +}
 +
 +static int opt_qscale(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    char *s;
 +    int ret;
 +    if(!strcmp(opt, "qscale")){
 +        av_log(NULL, AV_LOG_WARNING, "Please use -q:a or -q:v, -qscale is ambiguous\n");
 +        return parse_option(o, "q:v", arg, options);
 +    }
 +    s = av_asprintf("q%s", opt + 6);
 +    ret = parse_option(o, s, arg, options);
 +    av_free(s);
 +    return ret;
 +}
 +
 +static int opt_profile(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    if(!strcmp(opt, "profile")){
 +        av_log(NULL, AV_LOG_WARNING, "Please use -profile:a or -profile:v, -profile is ambiguous\n");
 +        return parse_option(o, "profile:v", arg, options);
 +    }
 +    return opt_default(optctx, opt, arg);
 +
 +}
 +
 +static int opt_video_filters(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    return parse_option(o, "filter:v", arg, options);
 +}
 +
 +static int opt_audio_filters(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    return parse_option(o, "filter:a", arg, options);
 +}
 +
 +static int opt_vsync(void *optctx, const char *opt, const char *arg)
 +{
 +    if      (!av_strcasecmp(arg, "cfr"))         video_sync_method = VSYNC_CFR;
 +    else if (!av_strcasecmp(arg, "vfr"))         video_sync_method = VSYNC_VFR;
 +    else if (!av_strcasecmp(arg, "passthrough")) video_sync_method = VSYNC_PASSTHROUGH;
 +    else if (!av_strcasecmp(arg, "drop"))        video_sync_method = VSYNC_DROP;
 +
 +    if (video_sync_method == VSYNC_AUTO)
 +        video_sync_method = parse_number_or_die("vsync", arg, OPT_INT, VSYNC_AUTO, VSYNC_VFR);
 +    return 0;
 +}
 +
 +static int opt_deinterlace(void *optctx, const char *opt, const char *arg)
 +{
 +    av_log(NULL, AV_LOG_WARNING, "-%s is deprecated, use -filter:v yadif instead\n", opt);
 +    do_deinterlace = 1;
 +    return 0;
 +}
 +
 +static int opt_timecode(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    char *tcr = av_asprintf("timecode=%s", arg);
 +    int ret = parse_option(o, "metadata:g", tcr, options);
 +    if (ret >= 0)
 +        ret = opt_default(optctx, "gop_timecode", arg);
 +    av_free(tcr);
 +    return ret;
 +}
 +
 +static int opt_channel_layout(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    char layout_str[32];
 +    char *stream_str;
 +    char *ac_str;
 +    int ret, channels, ac_str_size;
 +    uint64_t layout;
 +
 +    layout = av_get_channel_layout(arg);
 +    if (!layout) {
 +        av_log(NULL, AV_LOG_ERROR, "Unknown channel layout: %s\n", arg);
 +        return AVERROR(EINVAL);
 +    }
 +    snprintf(layout_str, sizeof(layout_str), "%"PRIu64, layout);
 +    ret = opt_default(NULL, opt, layout_str);
 +    if (ret < 0)
 +        return ret;
 +
 +    /* set 'ac' option based on channel layout */
 +    channels = av_get_channel_layout_nb_channels(layout);
 +    snprintf(layout_str, sizeof(layout_str), "%d", channels);
 +    stream_str = strchr(opt, ':');
 +    ac_str_size = 3 + (stream_str ? strlen(stream_str) : 0);
 +    ac_str = av_mallocz(ac_str_size);
 +    if (!ac_str)
 +        return AVERROR(ENOMEM);
 +    av_strlcpy(ac_str, "ac", 3);
 +    if (stream_str)
 +        av_strlcat(ac_str, stream_str, ac_str_size);
 +    ret = parse_option(o, ac_str, layout_str, options);
 +    av_free(ac_str);
 +
 +    return ret;
 +}
 +
 +static int opt_audio_qscale(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    return parse_option(o, "q:a", arg, options);
 +}
 +
 +static int opt_filter_complex(void *optctx, const char *opt, const char *arg)
 +{
 +    filtergraphs = grow_array(filtergraphs, sizeof(*filtergraphs),
 +                              &nb_filtergraphs, nb_filtergraphs + 1);
 +    if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
 +        return AVERROR(ENOMEM);
 +    filtergraphs[nb_filtergraphs - 1]->index       = nb_filtergraphs - 1;
 +    filtergraphs[nb_filtergraphs - 1]->graph_desc = arg;
 +    return 0;
 +}
 +
 +void show_help_default(const char *opt, const char *arg)
 +{
 +    /* per-file options have at least one of those set */
 +    const int per_file = OPT_SPEC | OPT_OFFSET | OPT_PERFILE;
 +    int show_advanced = 0, show_avoptions = 0;
 +
 +    if (opt) {
 +        if (!strcmp(opt, "long"))
 +            show_advanced = 1;
 +        else if (!strcmp(opt, "full"))
 +            show_advanced = show_avoptions = 1;
 +        else
 +            av_log(NULL, AV_LOG_ERROR, "Unknown help option '%s'.\n", opt);
 +    }
 +
 +    show_usage();
 +
 +    printf("Getting help:\n"
 +           "    -h      -- print basic options\n"
 +           "    -h long -- print more options\n"
 +           "    -h full -- print all options (including all format and codec specific options, very long)\n"
 +           "    See man %s for detailed description of the options.\n"
 +           "\n", program_name);
 +
 +    show_help_options(options, "Print help / information / capabilities:",
 +                      OPT_EXIT, 0, 0);
 +
 +    show_help_options(options, "Global options (affect whole program "
 +                      "instead of just one file:",
 +                      0, per_file | OPT_EXIT | OPT_EXPERT, 0);
 +    if (show_advanced)
 +        show_help_options(options, "Advanced global options:", OPT_EXPERT,
 +                          per_file | OPT_EXIT, 0);
 +
 +    show_help_options(options, "Per-file main options:", 0,
 +                      OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE |
 +                      OPT_EXIT, per_file);
 +    if (show_advanced)
 +        show_help_options(options, "Advanced per-file options:",
 +                          OPT_EXPERT, OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE, per_file);
 +
 +    show_help_options(options, "Video options:",
 +                      OPT_VIDEO, OPT_EXPERT | OPT_AUDIO, 0);
 +    if (show_advanced)
 +        show_help_options(options, "Advanced Video options:",
 +                          OPT_EXPERT | OPT_VIDEO, OPT_AUDIO, 0);
 +
 +    show_help_options(options, "Audio options:",
 +                      OPT_AUDIO, OPT_EXPERT | OPT_VIDEO, 0);
 +    if (show_advanced)
 +        show_help_options(options, "Advanced Audio options:",
 +                          OPT_EXPERT | OPT_AUDIO, OPT_VIDEO, 0);
 +    show_help_options(options, "Subtitle options:",
 +                      OPT_SUBTITLE, 0, 0);
 +    printf("\n");
 +
 +    if (show_avoptions) {
 +        int flags = AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM;
 +        show_help_children(avcodec_get_class(), flags);
 +        show_help_children(avformat_get_class(), flags);
 +        show_help_children(sws_get_class(), flags);
 +        show_help_children(swr_get_class(), AV_OPT_FLAG_AUDIO_PARAM);
 +        show_help_children(avfilter_get_class(), AV_OPT_FLAG_FILTERING_PARAM);
 +    }
 +}
 +
 +void show_usage(void)
 +{
 +    av_log(NULL, AV_LOG_INFO, "Hyper fast Audio and Video encoder\n");
 +    av_log(NULL, AV_LOG_INFO, "usage: %s [options] [[infile options] -i infile]... {[outfile options] outfile}...\n", program_name);
 +    av_log(NULL, AV_LOG_INFO, "\n");
 +}
 +
 +
 +static int opt_progress(void *optctx, const char *opt, const char *arg)
 +{
 +    AVIOContext *avio = NULL;
 +    int ret;
 +
 +    if (!strcmp(arg, "-"))
 +        arg = "pipe:";
 +    ret = avio_open2(&avio, arg, AVIO_FLAG_WRITE, &int_cb, NULL);
 +    if (ret < 0) {
 +        av_log(0, AV_LOG_ERROR, "Failed to open progress URL \"%s\": %s\n",
 +               arg, av_err2str(ret));
 +        return ret;
 +    }
 +    progress_avio = avio;
 +    return 0;
 +}
 +
 +#define OFFSET(x) offsetof(OptionsContext, x)
 +const OptionDef options[] = {
 +    /* main options */
 +#include "cmdutils_common_opts.h"
 +    { "f",              HAS_ARG | OPT_STRING | OPT_OFFSET,           { .off       = OFFSET(format) },
 +        "force format", "fmt" },
 +    { "i",              HAS_ARG | OPT_PERFILE,                       { .func_arg = opt_input_file },
 +        "input file name", "filename" },
 +    { "y",              OPT_BOOL,                                    {              &file_overwrite },
 +        "overwrite output files" },
 +    { "n",              OPT_BOOL,                                    {              &no_file_overwrite },
 +        "do not overwrite output files" },
 +    { "c",              HAS_ARG | OPT_STRING | OPT_SPEC,             { .off       = OFFSET(codec_names) },
 +        "codec name", "codec" },
 +    { "codec",          HAS_ARG | OPT_STRING | OPT_SPEC,             { .off       = OFFSET(codec_names) },
 +        "codec name", "codec" },
 +    { "pre",            HAS_ARG | OPT_STRING | OPT_SPEC,             { .off       = OFFSET(presets) },
 +        "preset name", "preset" },
 +    { "map",            HAS_ARG | OPT_EXPERT | OPT_PERFILE,          { .func_arg = opt_map },
 +        "set input stream mapping",
 +        "[-]input_file_id[:stream_specifier][,sync_file_id[:stream_specifier]]" },
 +    { "map_channel",    HAS_ARG | OPT_EXPERT | OPT_PERFILE,          { .func_arg = opt_map_channel },
 +        "map an audio channel from one stream to another", "file.stream.channel[:syncfile.syncstream]" },
 +    { "map_metadata",   HAS_ARG | OPT_STRING | OPT_SPEC,             { .off       = OFFSET(metadata_map) },
 +        "set metadata information of outfile from infile",
 +        "outfile[,metadata]:infile[,metadata]" },
 +    { "map_chapters",   HAS_ARG | OPT_INT | OPT_EXPERT | OPT_OFFSET, { .off = OFFSET(chapters_input_file) },
 +        "set chapters mapping", "input_file_index" },
 +    { "t",              HAS_ARG | OPT_TIME | OPT_OFFSET,             { .off = OFFSET(recording_time) },
 +        "record or transcode \"duration\" seconds of audio/video",
 +        "duration" },
 +    { "fs",             HAS_ARG | OPT_INT64 | OPT_OFFSET,            { .off = OFFSET(limit_filesize) },
 +        "set the limit file size in bytes", "limit_size" },
 +    { "ss",             HAS_ARG | OPT_TIME | OPT_OFFSET,             { .off = OFFSET(start_time) },
 +        "set the start time offset", "time_off" },
 +    { "itsoffset",      HAS_ARG | OPT_TIME | OPT_OFFSET | OPT_EXPERT,{ .off = OFFSET(input_ts_offset) },
 +        "set the input ts offset", "time_off" },
 +    { "itsscale",       HAS_ARG | OPT_DOUBLE | OPT_SPEC | OPT_EXPERT,{ .off = OFFSET(ts_scale) },
 +        "set the input ts scale", "scale" },
 +    { "timestamp",      HAS_ARG | OPT_PERFILE,                       { .func_arg = opt_recording_timestamp },
 +        "set the recording timestamp ('now' to set the current time)", "time" },
 +    { "metadata",       HAS_ARG | OPT_STRING | OPT_SPEC,             { .off = OFFSET(metadata) },
 +        "add metadata", "string=string" },
 +    { "dframes",        HAS_ARG | OPT_PERFILE | OPT_EXPERT,          { .func_arg = opt_data_frames },
 +        "set the number of data frames to record", "number" },
 +    { "benchmark",      OPT_BOOL | OPT_EXPERT,                       { &do_benchmark },
 +        "add timings for benchmarking" },
 +    { "benchmark_all",  OPT_BOOL | OPT_EXPERT,                       { &do_benchmark_all },
 +      "add timings for each task" },
 +    { "progress",       HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_progress },
 +      "write program-readable progress information", "url" },
 +    { "stdin",          OPT_BOOL | OPT_EXPERT,                       { &stdin_interaction },
 +      "enable or disable interaction on standard input" },
 +    { "timelimit",      HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_timelimit },
 +        "set max runtime in seconds", "limit" },
 +    { "dump",           OPT_BOOL | OPT_EXPERT,                       { &do_pkt_dump },
 +        "dump each input packet" },
 +    { "hex",            OPT_BOOL | OPT_EXPERT,                       { &do_hex_dump },
 +        "when dumping packets, also dump the payload" },
 +    { "re",             OPT_BOOL | OPT_EXPERT | OPT_OFFSET,          { .off = OFFSET(rate_emu) },
 +        "read input at native frame rate", "" },
 +    { "target",         HAS_ARG | OPT_PERFILE,                       { .func_arg = opt_target },
 +        "specify target file type (\"vcd\", \"svcd\", \"dvd\","
 +        " \"dv\", \"dv50\", \"pal-vcd\", \"ntsc-svcd\", ...)", "type" },
 +    { "vsync",          HAS_ARG | OPT_EXPERT,                        { opt_vsync },
 +        "video sync method", "" },
 +    { "async",          HAS_ARG | OPT_INT | OPT_EXPERT,              { &audio_sync_method },
 +        "audio sync method", "" },
 +    { "adrift_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT,          { &audio_drift_threshold },
 +        "audio drift threshold", "threshold" },
 +    { "copyts",         OPT_BOOL | OPT_EXPERT,                       { &copy_ts },
 +        "copy timestamps" },
 +    { "copytb",         HAS_ARG | OPT_INT | OPT_EXPERT,              { &copy_tb },
 +        "copy input stream time base when stream copying", "mode" },
 +    { "shortest",       OPT_BOOL | OPT_EXPERT | OPT_OFFSET,          { .off = OFFSET(shortest) },
 +        "finish encoding within shortest input" },
 +    { "dts_delta_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT,       { &dts_delta_threshold },
 +        "timestamp discontinuity delta threshold", "threshold" },
 +    { "dts_error_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT,       { &dts_error_threshold },
 +        "timestamp error delta threshold", "threshold" },
 +    { "xerror",         OPT_BOOL | OPT_EXPERT,                       { &exit_on_error },
 +        "exit on error", "error" },
 +    { "copyinkf",       OPT_BOOL | OPT_EXPERT | OPT_SPEC,            { .off = OFFSET(copy_initial_nonkeyframes) },
 +        "copy initial non-keyframes" },
 +    { "copypriorss",    OPT_INT | HAS_ARG | OPT_EXPERT | OPT_SPEC,   { .off = OFFSET(copy_prior_start) },
 +        "copy or discard frames before start time" },
 +    { "frames",         OPT_INT64 | HAS_ARG | OPT_SPEC,              { .off = OFFSET(max_frames) },
 +        "set the number of frames to record", "number" },
 +    { "tag",            OPT_STRING | HAS_ARG | OPT_SPEC | OPT_EXPERT,{ .off = OFFSET(codec_tags) },
 +        "force codec tag/fourcc", "fourcc/tag" },
 +    { "q",              HAS_ARG | OPT_EXPERT | OPT_DOUBLE | OPT_SPEC,{ .off = OFFSET(qscale) },
 +        "use fixed quality scale (VBR)", "q" },
 +    { "qscale",         HAS_ARG | OPT_EXPERT | OPT_PERFILE,          { .func_arg = opt_qscale },
 +        "use fixed quality scale (VBR)", "q" },
 +    { "profile",        HAS_ARG | OPT_EXPERT | OPT_PERFILE,          { .func_arg = opt_profile },
 +        "set profile", "profile" },
 +    { "filter",         HAS_ARG | OPT_STRING | OPT_SPEC,             { .off = OFFSET(filters) },
 +        "set stream filterchain", "filter_list" },
 +    { "filter_complex", HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_filter_complex },
 +        "create a complex filtergraph", "graph_description" },
 +    { "stats",          OPT_BOOL,                                    { &print_stats },
 +        "print progress report during encoding", },
 +    { "attach",         HAS_ARG | OPT_PERFILE | OPT_EXPERT,          { .func_arg = opt_attach },
 +        "add an attachment to the output file", "filename" },
 +    { "dump_attachment", HAS_ARG | OPT_STRING | OPT_SPEC |OPT_EXPERT,{ .off = OFFSET(dump_attachment) },
 +        "extract an attachment into a file", "filename" },
 +    { "debug_ts",       OPT_BOOL | OPT_EXPERT,                       { &debug_ts },
 +        "print timestamp debugging info" },
 +
 +    /* video options */
 +    { "vframes",      OPT_VIDEO | HAS_ARG  | OPT_PERFILE,                        { .func_arg = opt_video_frames },
 +        "set the number of video frames to record", "number" },
 +    { "r",            OPT_VIDEO | HAS_ARG  | OPT_STRING | OPT_SPEC,              { .off = OFFSET(frame_rates) },
 +        "set frame rate (Hz value, fraction or abbreviation)", "rate" },
 +    { "s",            OPT_VIDEO | HAS_ARG | OPT_SUBTITLE | OPT_STRING | OPT_SPEC,{ .off = OFFSET(frame_sizes) },
 +        "set frame size (WxH or abbreviation)", "size" },
 +    { "aspect",       OPT_VIDEO | HAS_ARG  | OPT_STRING | OPT_SPEC,              { .off = OFFSET(frame_aspect_ratios) },
 +        "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" },
 +    { "pix_fmt",      OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_STRING | OPT_SPEC, { .off = OFFSET(frame_pix_fmts) },
 +        "set pixel format", "format" },
 +    { "bits_per_raw_sample", OPT_VIDEO | OPT_INT | HAS_ARG,                      { &frame_bits_per_raw_sample },
 +        "set the number of bits per raw sample", "number" },
 +    { "croptop",      OPT_VIDEO | HAS_ARG,                                       { .func_arg = opt_frame_crop },
 +        "Removed, use the crop filter instead", "size" },
 +    { "cropbottom",   OPT_VIDEO | HAS_ARG,                                       { .func_arg = opt_frame_crop },
 +        "Removed, use the crop filter instead", "size" },
 +    { "cropleft",     OPT_VIDEO | HAS_ARG,                                       { .func_arg = opt_frame_crop },
 +        "Removed, use the crop filter instead", "size" },
 +    { "cropright",    OPT_VIDEO | HAS_ARG,                                       { .func_arg = opt_frame_crop },
 +        "Removed, use the crop filter instead", "size" },
 +    { "padtop",       OPT_VIDEO | HAS_ARG,                                       { .func_arg = opt_pad },
 +        "Removed, use the pad filter instead", "size" },
 +    { "padbottom",    OPT_VIDEO | HAS_ARG,                                       { .func_arg = opt_pad },
 +        "Removed, use the pad filter instead", "size" },
 +    { "padleft",      OPT_VIDEO | HAS_ARG,                                       { .func_arg = opt_pad },
 +        "Removed, use the pad filter instead", "size" },
 +    { "padright",     OPT_VIDEO | HAS_ARG,                                       { .func_arg = opt_pad },
 +        "Removed, use the pad filter instead", "size" },
 +    { "padcolor",     OPT_VIDEO | HAS_ARG,                                       { .func_arg = opt_pad },
 +        "Removed, use the pad filter instead", "color" },
 +    { "intra",        OPT_VIDEO | OPT_BOOL | OPT_EXPERT,                         { &intra_only },
 +        "deprecated use -g 1" },
 +    { "vn",           OPT_VIDEO | OPT_BOOL  | OPT_OFFSET,                        { .off = OFFSET(video_disable) },
 +        "disable video" },
 +    { "vdt",          OPT_VIDEO | OPT_INT | HAS_ARG | OPT_EXPERT ,               { &video_discard },
 +        "discard threshold", "n" },
 +    { "rc_override",  OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_STRING | OPT_SPEC, { .off = OFFSET(rc_overrides) },
 +        "rate control override for specific intervals", "override" },
 +    { "vcodec",       OPT_VIDEO | HAS_ARG  | OPT_PERFILE,                        { .func_arg = opt_video_codec },
 +        "force video codec ('copy' to copy stream)", "codec" },
 +    { "sameq",        OPT_VIDEO | OPT_BOOL | OPT_EXPERT ,                        { &same_quant },
 +        "use same quantizer as source (implies VBR)" },
 +    { "same_quant",   OPT_VIDEO | OPT_BOOL | OPT_EXPERT,                         { &same_quant },
 +        "use same quantizer as source (implies VBR)" },
 +    { "timecode",     OPT_VIDEO | HAS_ARG | OPT_PERFILE,                         { .func_arg = opt_timecode },
 +        "set initial TimeCode value.", "hh:mm:ss[:;.]ff" },
 +    { "pass",         OPT_VIDEO | HAS_ARG | OPT_SPEC | OPT_INT,                  { .off = OFFSET(pass) },
 +        "select the pass number (1 to 3)", "n" },
 +    { "passlogfile",  OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_EXPERT | OPT_SPEC,  { .off = OFFSET(passlogfiles) },
 +        "select two pass log file name prefix", "prefix" },
 +    { "deinterlace",  OPT_VIDEO | OPT_EXPERT ,                                   { .func_arg = opt_deinterlace },
 +        "this option is deprecated, use the yadif filter instead" },
 +    { "psnr",         OPT_VIDEO | OPT_BOOL | OPT_EXPERT,                         { &do_psnr },
 +        "calculate PSNR of compressed frames" },
 +    { "vstats",       OPT_VIDEO | OPT_EXPERT ,                                   { &opt_vstats },
 +        "dump video coding statistics to file" },
 +    { "vstats_file",  OPT_VIDEO | HAS_ARG | OPT_EXPERT ,                         { opt_vstats_file },
 +        "dump video coding statistics to file", "file" },
 +    { "vf",           OPT_VIDEO | HAS_ARG  | OPT_PERFILE,                        { .func_arg = opt_video_filters },
 +        "video filters", "filter list" },
 +    { "intra_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_STRING | OPT_SPEC, { .off = OFFSET(intra_matrices) },
 +        "specify intra matrix coeffs", "matrix" },
 +    { "inter_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_STRING | OPT_SPEC, { .off = OFFSET(inter_matrices) },
 +        "specify inter matrix coeffs", "matrix" },
 +    { "top",          OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_INT| OPT_SPEC,     { .off = OFFSET(top_field_first) },
 +        "top=1/bottom=0/auto=-1 field first", "" },
 +    { "dc",           OPT_VIDEO | OPT_INT | HAS_ARG | OPT_EXPERT ,               { &intra_dc_precision },
 +        "intra_dc_precision", "precision" },
 +    { "vtag",         OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_PERFILE,           { .func_arg = opt_old2new },
 +        "force video tag/fourcc", "fourcc/tag" },
 +    { "qphist",       OPT_VIDEO | OPT_BOOL | OPT_EXPERT ,                        { &qp_hist },
 +        "show QP histogram" },
 +    { "force_fps",    OPT_VIDEO | OPT_BOOL | OPT_EXPERT  | OPT_SPEC,             { .off = OFFSET(force_fps) },
 +        "force the selected framerate, disable the best supported framerate selection" },
 +    { "streamid",     OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE,            { .func_arg = opt_streamid },
 +        "set the value of an outfile streamid", "streamIndex:value" },
 +    { "force_key_frames", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT  | OPT_SPEC,
 +        { .off = OFFSET(forced_key_frames) },
 +        "force key frames at specified timestamps", "timestamps" },
 +    { "b",            OPT_VIDEO | HAS_ARG | OPT_PERFILE,                         { .func_arg = opt_bitrate },
 +        "video bitrate (please use -b:v)", "bitrate" },
 +
 +    /* audio options */
 +    { "aframes",        OPT_AUDIO | HAS_ARG  | OPT_PERFILE,                        { .func_arg = opt_audio_frames },
 +        "set the number of audio frames to record", "number" },
 +    { "aq",             OPT_AUDIO | HAS_ARG  | OPT_PERFILE,                        { .func_arg = opt_audio_qscale },
 +        "set audio quality (codec-specific)", "quality", },
 +    { "ar",             OPT_AUDIO | HAS_ARG  | OPT_INT | OPT_SPEC,                 { .off = OFFSET(audio_sample_rate) },
 +        "set audio sampling rate (in Hz)", "rate" },
 +    { "ac",             OPT_AUDIO | HAS_ARG  | OPT_INT | OPT_SPEC,                 { .off = OFFSET(audio_channels) },
 +        "set number of audio channels", "channels" },
 +    { "an",             OPT_AUDIO | OPT_BOOL | OPT_OFFSET,                         { .off = OFFSET(audio_disable) },
 +        "disable audio" },
 +    { "acodec",         OPT_AUDIO | HAS_ARG  | OPT_PERFILE,                        { .func_arg = opt_audio_codec },
 +        "force audio codec ('copy' to copy stream)", "codec" },
 +    { "atag",           OPT_AUDIO | HAS_ARG  | OPT_EXPERT | OPT_PERFILE,           { .func_arg = opt_old2new },
 +        "force audio tag/fourcc", "fourcc/tag" },
 +    { "vol",            OPT_AUDIO | HAS_ARG  | OPT_INT,                            { &audio_volume },
 +        "change audio volume (256=normal)" , "volume" },
 +    { "sample_fmt",     OPT_AUDIO | HAS_ARG  | OPT_EXPERT | OPT_SPEC | OPT_STRING, { .off = OFFSET(sample_fmts) },
 +        "set sample format", "format" },
 +    { "channel_layout", OPT_AUDIO | HAS_ARG  | OPT_EXPERT | OPT_PERFILE,           { .func_arg = opt_channel_layout },
 +        "set channel layout", "layout" },
 +    { "af",             OPT_AUDIO | HAS_ARG  | OPT_PERFILE,                        { .func_arg = opt_audio_filters },
 +        "audio filters", "filter list" },
 +
 +    /* subtitle options */
 +    { "sn",     OPT_SUBTITLE | OPT_BOOL | OPT_OFFSET, { .off = OFFSET(subtitle_disable) },
 +        "disable subtitle" },
 +    { "scodec", OPT_SUBTITLE | HAS_ARG  | OPT_PERFILE, { .func_arg = opt_subtitle_codec },
 +        "force subtitle codec ('copy' to copy stream)", "codec" },
 +    { "stag",   OPT_SUBTITLE | HAS_ARG  | OPT_EXPERT  | OPT_PERFILE, { .func_arg = opt_old2new }
 +        , "force subtitle tag/fourcc", "fourcc/tag" },
 +    { "fix_sub_duration", OPT_BOOL | OPT_EXPERT | OPT_SUBTITLE | OPT_SPEC, { .off = OFFSET(fix_sub_duration) },
 +        "fix subtitles duration" },
 +
 +    /* grab options */
 +    { "vc", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_video_channel },
 +        "deprecated, use -channel", "channel" },
 +    { "tvstd", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_video_standard },
 +        "deprecated, use -standard", "standard" },
 +    { "isync", OPT_BOOL | OPT_EXPERT, { &input_sync }, "this option is deprecated and does nothing", "" },
 +
 +    /* muxer options */
 +    { "muxdelay",   OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET, { .off = OFFSET(mux_max_delay) },
 +        "set the maximum demux-decode delay", "seconds" },
 +    { "muxpreload", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET, { .off = OFFSET(mux_preload) },
 +        "set the initial demux-decode delay", "seconds" },
 +
 +    { "bsf", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_EXPERT, { .off = OFFSET(bitstream_filters) },
 +        "A comma-separated list of bitstream filters", "bitstream_filters" },
 +    { "absf", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_PERFILE, { .func_arg = opt_old2new },
 +        "deprecated", "audio bitstream_filters" },
 +    { "vbsf", OPT_VIDEO | HAS_ARG | OPT_EXPERT| OPT_PERFILE, { .func_arg = opt_old2new },
 +        "deprecated", "video bitstream_filters" },
 +
 +    { "apre", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_PERFILE,    { .func_arg = opt_preset },
 +        "set the audio options to the indicated preset", "preset" },
 +    { "vpre", OPT_VIDEO | HAS_ARG | OPT_EXPERT| OPT_PERFILE,    { .func_arg = opt_preset },
 +        "set the video options to the indicated preset", "preset" },
 +    { "spre", HAS_ARG | OPT_SUBTITLE | OPT_EXPERT| OPT_PERFILE, { .func_arg = opt_preset },
 +        "set the subtitle options to the indicated preset", "preset" },
 +    { "fpre", HAS_ARG | OPT_EXPERT| OPT_PERFILE,                { .func_arg = opt_preset },
 +        "set options from indicated preset file", "filename" },
 +    /* data codec support */
 +    { "dcodec", HAS_ARG | OPT_DATA | OPT_PERFILE | OPT_EXPERT, { .func_arg = opt_data_codec },
 +        "force data codec ('copy' to copy stream)", "codec" },
 +    { "dn", OPT_BOOL | OPT_VIDEO | OPT_OFFSET, { .off = OFFSET(data_disable) },
 +        "disable data" },
 +
 +    { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, { .func_arg = opt_default },
 +        "generic catch all option", "" },
 +    { NULL, },
 +};
diff --cc ffplay.c
index 2337fe0,0000000..3a21bfa
mode 100644,000000..100644
--- /dev/null
+++ b/ffplay.c
@@@ -1,3198 -1,0 +1,3195 @@@
- void av_noreturn exit_program(int ret)
- {
-     exit(ret);
- }
 +/*
 + * Copyright (c) 2003 Fabrice Bellard
 + *
 + * This file is part of FFmpeg.
 + *
 + * FFmpeg is free software; you can redistribute it and/or
 + * modify it under the terms of the GNU Lesser General Public
 + * License as published by the Free Software Foundation; either
 + * version 2.1 of the License, or (at your option) any later version.
 + *
 + * FFmpeg is distributed in the hope that it will be useful,
 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 + * Lesser General Public License for more details.
 + *
 + * You should have received a copy of the GNU Lesser General Public
 + * License along with FFmpeg; if not, write to the Free Software
 + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 + */
 +
 +/**
 + * @file
 + * simple media player based on the FFmpeg libraries
 + */
 +
 +#include "config.h"
 +#include <inttypes.h>
 +#include <math.h>
 +#include <limits.h>
 +#include <signal.h>
 +#include "libavutil/avstring.h"
 +#include "libavutil/colorspace.h"
 +#include "libavutil/mathematics.h"
 +#include "libavutil/pixdesc.h"
 +#include "libavutil/imgutils.h"
 +#include "libavutil/dict.h"
 +#include "libavutil/parseutils.h"
 +#include "libavutil/samplefmt.h"
 +#include "libavutil/avassert.h"
 +#include "libavutil/time.h"
 +#include "libavformat/avformat.h"
 +#include "libavdevice/avdevice.h"
 +#include "libswscale/swscale.h"
 +#include "libavutil/opt.h"
 +#include "libavcodec/avfft.h"
 +#include "libswresample/swresample.h"
 +
 +#if CONFIG_AVFILTER
 +# include "libavfilter/avcodec.h"
 +# include "libavfilter/avfilter.h"
 +# include "libavfilter/avfiltergraph.h"
 +# include "libavfilter/buffersink.h"
 +# include "libavfilter/buffersrc.h"
 +#endif
 +
 +#include <SDL.h>
 +#include <SDL_thread.h>
 +
 +#include "cmdutils.h"
 +
 +#include <assert.h>
 +
 +const char program_name[] = "ffplay";
 +const int program_birth_year = 2003;
 +
 +#define MAX_QUEUE_SIZE (15 * 1024 * 1024)
 +#define MIN_FRAMES 5
 +
 +/* SDL audio buffer size, in samples. Should be small to have precise
 +   A/V sync as SDL does not have hardware buffer fullness info. */
 +#define SDL_AUDIO_BUFFER_SIZE 1024
 +
 +/* no AV sync correction is done if below the AV sync threshold */
 +#define AV_SYNC_THRESHOLD 0.01
 +/* no AV correction is done if too big error */
 +#define AV_NOSYNC_THRESHOLD 10.0
 +
 +/* maximum audio speed change to get correct sync */
 +#define SAMPLE_CORRECTION_PERCENT_MAX 10
 +
 +/* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
 +#define AUDIO_DIFF_AVG_NB   20
 +
 +/* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
 +/* TODO: We assume that a decoded and resampled frame fits into this buffer */
 +#define SAMPLE_ARRAY_SIZE (8 * 65536)
 +
 +static int sws_flags = SWS_BICUBIC;
 +
 +typedef struct PacketQueue {
 +    AVPacketList *first_pkt, *last_pkt;
 +    int nb_packets;
 +    int size;
 +    int abort_request;
 +    SDL_mutex *mutex;
 +    SDL_cond *cond;
 +} PacketQueue;
 +
 +#define VIDEO_PICTURE_QUEUE_SIZE 4
 +#define SUBPICTURE_QUEUE_SIZE 4
 +
 +typedef struct VideoPicture {
 +    double pts;                                  ///< presentation time stamp for this picture
 +    int64_t pos;                                 ///< byte position in file
 +    int skip;
 +    SDL_Overlay *bmp;
 +    int width, height; /* source height & width */
 +    AVRational sample_aspect_ratio;
 +    int allocated;
 +    int reallocate;
 +
 +#if CONFIG_AVFILTER
 +    AVFilterBufferRef *picref;
 +#endif
 +} VideoPicture;
 +
 +typedef struct SubPicture {
 +    double pts; /* presentation time stamp for this picture */
 +    AVSubtitle sub;
 +} SubPicture;
 +
 +typedef struct AudioParams {
 +    int freq;
 +    int channels;
 +    int channel_layout;
 +    enum AVSampleFormat fmt;
 +} AudioParams;
 +
 +enum {
 +    AV_SYNC_AUDIO_MASTER, /* default choice */
 +    AV_SYNC_VIDEO_MASTER,
 +    AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
 +};
 +
 +typedef struct VideoState {
 +    SDL_Thread *read_tid;
 +    SDL_Thread *video_tid;
 +    SDL_Thread *refresh_tid;
 +    AVInputFormat *iformat;
 +    int no_background;
 +    int abort_request;
 +    int force_refresh;
 +    int paused;
 +    int last_paused;
 +    int que_attachments_req;
 +    int seek_req;
 +    int seek_flags;
 +    int64_t seek_pos;
 +    int64_t seek_rel;
 +    int read_pause_return;
 +    AVFormatContext *ic;
 +
 +    int audio_stream;
 +
 +    int av_sync_type;
 +    double external_clock; /* external clock base */
 +    int64_t external_clock_time;
 +
 +    double audio_clock;
 +    double audio_diff_cum; /* used for AV difference average computation */
 +    double audio_diff_avg_coef;
 +    double audio_diff_threshold;
 +    int audio_diff_avg_count;
 +    AVStream *audio_st;
 +    PacketQueue audioq;
 +    int audio_hw_buf_size;
 +    DECLARE_ALIGNED(16,uint8_t,audio_buf2)[AVCODEC_MAX_AUDIO_FRAME_SIZE * 4];
 +    uint8_t silence_buf[SDL_AUDIO_BUFFER_SIZE];
 +    uint8_t *audio_buf;
 +    uint8_t *audio_buf1;
 +    unsigned int audio_buf_size; /* in bytes */
 +    int audio_buf_index; /* in bytes */
 +    int audio_write_buf_size;
 +    AVPacket audio_pkt_temp;
 +    AVPacket audio_pkt;
 +    struct AudioParams audio_src;
 +    struct AudioParams audio_tgt;
 +    struct SwrContext *swr_ctx;
 +    double audio_current_pts;
 +    double audio_current_pts_drift;
 +    int frame_drops_early;
 +    int frame_drops_late;
 +    AVFrame *frame;
 +
 +    enum ShowMode {
 +        SHOW_MODE_NONE = -1, SHOW_MODE_VIDEO = 0, SHOW_MODE_WAVES, SHOW_MODE_RDFT, SHOW_MODE_NB
 +    } show_mode;
 +    int16_t sample_array[SAMPLE_ARRAY_SIZE];
 +    int sample_array_index;
 +    int last_i_start;
 +    RDFTContext *rdft;
 +    int rdft_bits;
 +    FFTSample *rdft_data;
 +    int xpos;
 +
 +    SDL_Thread *subtitle_tid;
 +    int subtitle_stream;
 +    int subtitle_stream_changed;
 +    AVStream *subtitle_st;
 +    PacketQueue subtitleq;
 +    SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
 +    int subpq_size, subpq_rindex, subpq_windex;
 +    SDL_mutex *subpq_mutex;
 +    SDL_cond *subpq_cond;
 +
 +    double frame_timer;
 +    double frame_last_pts;
 +    double frame_last_duration;
 +    double frame_last_dropped_pts;
 +    double frame_last_returned_time;
 +    double frame_last_filter_delay;
 +    int64_t frame_last_dropped_pos;
 +    double video_clock;                          ///< pts of last decoded frame / predicted pts of next decoded frame
 +    int video_stream;
 +    AVStream *video_st;
 +    PacketQueue videoq;
 +    double video_current_pts;                    ///< current displayed pts (different from video_clock if frame fifos are used)
 +    double video_current_pts_drift;              ///< video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
 +    int64_t video_current_pos;                   ///< current displayed file pos
 +    VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
 +    int pictq_size, pictq_rindex, pictq_windex;
 +    SDL_mutex *pictq_mutex;
 +    SDL_cond *pictq_cond;
 +#if !CONFIG_AVFILTER
 +    struct SwsContext *img_convert_ctx;
 +#endif
 +
 +    char filename[1024];
 +    int width, height, xleft, ytop;
 +    int step;
 +
 +#if CONFIG_AVFILTER
 +    AVFilterContext *in_video_filter;           ///< the first filter in the video chain
 +    AVFilterContext *out_video_filter;          ///< the last filter in the video chain
 +    int use_dr1;
 +    FrameBuffer *buffer_pool;
 +#endif
 +
 +    int refresh;
 +    int last_video_stream, last_audio_stream, last_subtitle_stream;
 +
 +    SDL_cond *continue_read_thread;
 +} VideoState;
 +
 +/* options specified by the user */
 +static AVInputFormat *file_iformat;
 +static const char *input_filename;
 +static const char *window_title;
 +static int fs_screen_width;
 +static int fs_screen_height;
 +static int screen_width  = 0;
 +static int screen_height = 0;
 +static int audio_disable;
 +static int video_disable;
 +static int wanted_stream[AVMEDIA_TYPE_NB] = {
 +    [AVMEDIA_TYPE_AUDIO]    = -1,
 +    [AVMEDIA_TYPE_VIDEO]    = -1,
 +    [AVMEDIA_TYPE_SUBTITLE] = -1,
 +};
 +static int seek_by_bytes = -1;
 +static int display_disable;
 +static int show_status = 1;
 +static int av_sync_type = AV_SYNC_AUDIO_MASTER;
 +static int64_t start_time = AV_NOPTS_VALUE;
 +static int64_t duration = AV_NOPTS_VALUE;
 +static int workaround_bugs = 1;
 +static int fast = 0;
 +static int genpts = 0;
 +static int lowres = 0;
 +static int idct = FF_IDCT_AUTO;
 +static enum AVDiscard skip_frame       = AVDISCARD_DEFAULT;
 +static enum AVDiscard skip_idct        = AVDISCARD_DEFAULT;
 +static enum AVDiscard skip_loop_filter = AVDISCARD_DEFAULT;
 +static int error_concealment = 3;
 +static int decoder_reorder_pts = -1;
 +static int autoexit;
 +static int exit_on_keydown;
 +static int exit_on_mousedown;
 +static int loop = 1;
 +static int framedrop = -1;
 +static int infinite_buffer = 0;
 +static enum ShowMode show_mode = SHOW_MODE_NONE;
 +static const char *audio_codec_name;
 +static const char *subtitle_codec_name;
 +static const char *video_codec_name;
 +static int rdftspeed = 20;
 +#if CONFIG_AVFILTER
 +static char *vfilters = NULL;
 +#endif
 +
 +/* current context */
 +static int is_full_screen;
 +static int64_t audio_callback_time;
 +
 +static AVPacket flush_pkt;
 +
 +#define FF_ALLOC_EVENT   (SDL_USEREVENT)
 +#define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
 +#define FF_QUIT_EVENT    (SDL_USEREVENT + 2)
 +
 +static SDL_Surface *screen;
 +
-         exit_program(1);
++static int packet_queue_put(PacketQueue *q, AVPacket *pkt);
 +
 +static int packet_queue_put_private(PacketQueue *q, AVPacket *pkt)
 +{
 +    AVPacketList *pkt1;
 +
 +    if (q->abort_request)
 +       return -1;
 +
 +    pkt1 = av_malloc(sizeof(AVPacketList));
 +    if (!pkt1)
 +        return -1;
 +    pkt1->pkt = *pkt;
 +    pkt1->next = NULL;
 +
 +    if (!q->last_pkt)
 +        q->first_pkt = pkt1;
 +    else
 +        q->last_pkt->next = pkt1;
 +    q->last_pkt = pkt1;
 +    q->nb_packets++;
 +    q->size += pkt1->pkt.size + sizeof(*pkt1);
 +    /* XXX: should duplicate packet data in DV case */
 +    SDL_CondSignal(q->cond);
 +    return 0;
 +}
 +
 +static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
 +{
 +    int ret;
 +
 +    /* duplicate the packet */
 +    if (pkt != &flush_pkt && av_dup_packet(pkt) < 0)
 +        return -1;
 +
 +    SDL_LockMutex(q->mutex);
 +    ret = packet_queue_put_private(q, pkt);
 +    SDL_UnlockMutex(q->mutex);
 +
 +    if (pkt != &flush_pkt && ret < 0)
 +        av_free_packet(pkt);
 +
 +    return ret;
 +}
 +
 +/* packet queue handling */
 +static void packet_queue_init(PacketQueue *q)
 +{
 +    memset(q, 0, sizeof(PacketQueue));
 +    q->mutex = SDL_CreateMutex();
 +    q->cond = SDL_CreateCond();
 +    q->abort_request = 1;
 +}
 +
 +static void packet_queue_flush(PacketQueue *q)
 +{
 +    AVPacketList *pkt, *pkt1;
 +
 +    SDL_LockMutex(q->mutex);
 +    for (pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
 +        pkt1 = pkt->next;
 +        av_free_packet(&pkt->pkt);
 +        av_freep(&pkt);
 +    }
 +    q->last_pkt = NULL;
 +    q->first_pkt = NULL;
 +    q->nb_packets = 0;
 +    q->size = 0;
 +    SDL_UnlockMutex(q->mutex);
 +}
 +
 +static void packet_queue_destroy(PacketQueue *q)
 +{
 +    packet_queue_flush(q);
 +    SDL_DestroyMutex(q->mutex);
 +    SDL_DestroyCond(q->cond);
 +}
 +
 +static void packet_queue_abort(PacketQueue *q)
 +{
 +    SDL_LockMutex(q->mutex);
 +
 +    q->abort_request = 1;
 +
 +    SDL_CondSignal(q->cond);
 +
 +    SDL_UnlockMutex(q->mutex);
 +}
 +
 +static void packet_queue_start(PacketQueue *q)
 +{
 +    SDL_LockMutex(q->mutex);
 +    q->abort_request = 0;
 +    packet_queue_put_private(q, &flush_pkt);
 +    SDL_UnlockMutex(q->mutex);
 +}
 +
 +/* return < 0 if aborted, 0 if no packet and > 0 if packet.  */
 +static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
 +{
 +    AVPacketList *pkt1;
 +    int ret;
 +
 +    SDL_LockMutex(q->mutex);
 +
 +    for (;;) {
 +        if (q->abort_request) {
 +            ret = -1;
 +            break;
 +        }
 +
 +        pkt1 = q->first_pkt;
 +        if (pkt1) {
 +            q->first_pkt = pkt1->next;
 +            if (!q->first_pkt)
 +                q->last_pkt = NULL;
 +            q->nb_packets--;
 +            q->size -= pkt1->pkt.size + sizeof(*pkt1);
 +            *pkt = pkt1->pkt;
 +            av_free(pkt1);
 +            ret = 1;
 +            break;
 +        } else if (!block) {
 +            ret = 0;
 +            break;
 +        } else {
 +            SDL_CondWait(q->cond, q->mutex);
 +        }
 +    }
 +    SDL_UnlockMutex(q->mutex);
 +    return ret;
 +}
 +
 +static inline void fill_rectangle(SDL_Surface *screen,
 +                                  int x, int y, int w, int h, int color)
 +{
 +    SDL_Rect rect;
 +    rect.x = x;
 +    rect.y = y;
 +    rect.w = w;
 +    rect.h = h;
 +    SDL_FillRect(screen, &rect, color);
 +}
 +
 +#define ALPHA_BLEND(a, oldp, newp, s)\
 +((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
 +
 +#define RGBA_IN(r, g, b, a, s)\
 +{\
 +    unsigned int v = ((const uint32_t *)(s))[0];\
 +    a = (v >> 24) & 0xff;\
 +    r = (v >> 16) & 0xff;\
 +    g = (v >> 8) & 0xff;\
 +    b = v & 0xff;\
 +}
 +
 +#define YUVA_IN(y, u, v, a, s, pal)\
 +{\
 +    unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
 +    a = (val >> 24) & 0xff;\
 +    y = (val >> 16) & 0xff;\
 +    u = (val >> 8) & 0xff;\
 +    v = val & 0xff;\
 +}
 +
 +#define YUVA_OUT(d, y, u, v, a)\
 +{\
 +    ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
 +}
 +
 +
 +#define BPP 1
 +
 +static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
 +{
 +    int wrap, wrap3, width2, skip2;
 +    int y, u, v, a, u1, v1, a1, w, h;
 +    uint8_t *lum, *cb, *cr;
 +    const uint8_t *p;
 +    const uint32_t *pal;
 +    int dstx, dsty, dstw, dsth;
 +
 +    dstw = av_clip(rect->w, 0, imgw);
 +    dsth = av_clip(rect->h, 0, imgh);
 +    dstx = av_clip(rect->x, 0, imgw - dstw);
 +    dsty = av_clip(rect->y, 0, imgh - dsth);
 +    lum = dst->data[0] + dsty * dst->linesize[0];
 +    cb  = dst->data[1] + (dsty >> 1) * dst->linesize[1];
 +    cr  = dst->data[2] + (dsty >> 1) * dst->linesize[2];
 +
 +    width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
 +    skip2 = dstx >> 1;
 +    wrap = dst->linesize[0];
 +    wrap3 = rect->pict.linesize[0];
 +    p = rect->pict.data[0];
 +    pal = (const uint32_t *)rect->pict.data[1];  /* Now in YCrCb! */
 +
 +    if (dsty & 1) {
 +        lum += dstx;
 +        cb += skip2;
 +        cr += skip2;
 +
 +        if (dstx & 1) {
 +            YUVA_IN(y, u, v, a, p, pal);
 +            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 +            cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
 +            cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
 +            cb++;
 +            cr++;
 +            lum++;
 +            p += BPP;
 +        }
 +        for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
 +            YUVA_IN(y, u, v, a, p, pal);
 +            u1 = u;
 +            v1 = v;
 +            a1 = a;
 +            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 +
 +            YUVA_IN(y, u, v, a, p + BPP, pal);
 +            u1 += u;
 +            v1 += v;
 +            a1 += a;
 +            lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
 +            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
 +            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
 +            cb++;
 +            cr++;
 +            p += 2 * BPP;
 +            lum += 2;
 +        }
 +        if (w) {
 +            YUVA_IN(y, u, v, a, p, pal);
 +            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 +            cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
 +            cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
 +            p++;
 +            lum++;
 +        }
 +        p += wrap3 - dstw * BPP;
 +        lum += wrap - dstw - dstx;
 +        cb += dst->linesize[1] - width2 - skip2;
 +        cr += dst->linesize[2] - width2 - skip2;
 +    }
 +    for (h = dsth - (dsty & 1); h >= 2; h -= 2) {
 +        lum += dstx;
 +        cb += skip2;
 +        cr += skip2;
 +
 +        if (dstx & 1) {
 +            YUVA_IN(y, u, v, a, p, pal);
 +            u1 = u;
 +            v1 = v;
 +            a1 = a;
 +            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 +            p += wrap3;
 +            lum += wrap;
 +            YUVA_IN(y, u, v, a, p, pal);
 +            u1 += u;
 +            v1 += v;
 +            a1 += a;
 +            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 +            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
 +            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
 +            cb++;
 +            cr++;
 +            p += -wrap3 + BPP;
 +            lum += -wrap + 1;
 +        }
 +        for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
 +            YUVA_IN(y, u, v, a, p, pal);
 +            u1 = u;
 +            v1 = v;
 +            a1 = a;
 +            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 +
 +            YUVA_IN(y, u, v, a, p + BPP, pal);
 +            u1 += u;
 +            v1 += v;
 +            a1 += a;
 +            lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
 +            p += wrap3;
 +            lum += wrap;
 +
 +            YUVA_IN(y, u, v, a, p, pal);
 +            u1 += u;
 +            v1 += v;
 +            a1 += a;
 +            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 +
 +            YUVA_IN(y, u, v, a, p + BPP, pal);
 +            u1 += u;
 +            v1 += v;
 +            a1 += a;
 +            lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
 +
 +            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
 +            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
 +
 +            cb++;
 +            cr++;
 +            p += -wrap3 + 2 * BPP;
 +            lum += -wrap + 2;
 +        }
 +        if (w) {
 +            YUVA_IN(y, u, v, a, p, pal);
 +            u1 = u;
 +            v1 = v;
 +            a1 = a;
 +            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 +            p += wrap3;
 +            lum += wrap;
 +            YUVA_IN(y, u, v, a, p, pal);
 +            u1 += u;
 +            v1 += v;
 +            a1 += a;
 +            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 +            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
 +            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
 +            cb++;
 +            cr++;
 +            p += -wrap3 + BPP;
 +            lum += -wrap + 1;
 +        }
 +        p += wrap3 + (wrap3 - dstw * BPP);
 +        lum += wrap + (wrap - dstw - dstx);
 +        cb += dst->linesize[1] - width2 - skip2;
 +        cr += dst->linesize[2] - width2 - skip2;
 +    }
 +    /* handle odd height */
 +    if (h) {
 +        lum += dstx;
 +        cb += skip2;
 +        cr += skip2;
 +
 +        if (dstx & 1) {
 +            YUVA_IN(y, u, v, a, p, pal);
 +            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 +            cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
 +            cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
 +            cb++;
 +            cr++;
 +            lum++;
 +            p += BPP;
 +        }
 +        for (w = dstw - (dstx & 1); w >= 2; w -= 2) {
 +            YUVA_IN(y, u, v, a, p, pal);
 +            u1 = u;
 +            v1 = v;
 +            a1 = a;
 +            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 +
 +            YUVA_IN(y, u, v, a, p + BPP, pal);
 +            u1 += u;
 +            v1 += v;
 +            a1 += a;
 +            lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
 +            cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
 +            cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
 +            cb++;
 +            cr++;
 +            p += 2 * BPP;
 +            lum += 2;
 +        }
 +        if (w) {
 +            YUVA_IN(y, u, v, a, p, pal);
 +            lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
 +            cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
 +            cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
 +        }
 +    }
 +}
 +
 +static void free_subpicture(SubPicture *sp)
 +{
 +    avsubtitle_free(&sp->sub);
 +}
 +
 +static void calculate_display_rect(SDL_Rect *rect, int scr_xleft, int scr_ytop, int scr_width, int scr_height, VideoPicture *vp)
 +{
 +    float aspect_ratio;
 +    int width, height, x, y;
 +
 +    if (vp->sample_aspect_ratio.num == 0)
 +        aspect_ratio = 0;
 +    else
 +        aspect_ratio = av_q2d(vp->sample_aspect_ratio);
 +
 +    if (aspect_ratio <= 0.0)
 +        aspect_ratio = 1.0;
 +    aspect_ratio *= (float)vp->width / (float)vp->height;
 +
 +    /* XXX: we suppose the screen has a 1.0 pixel ratio */
 +    height = scr_height;
 +    width = ((int)rint(height * aspect_ratio)) & ~1;
 +    if (width > scr_width) {
 +        width = scr_width;
 +        height = ((int)rint(width / aspect_ratio)) & ~1;
 +    }
 +    x = (scr_width - width) / 2;
 +    y = (scr_height - height) / 2;
 +    rect->x = scr_xleft + x;
 +    rect->y = scr_ytop  + y;
 +    rect->w = FFMAX(width,  1);
 +    rect->h = FFMAX(height, 1);
 +}
 +
 +static void video_image_display(VideoState *is)
 +{
 +    VideoPicture *vp;
 +    SubPicture *sp;
 +    AVPicture pict;
 +    SDL_Rect rect;
 +    int i;
 +
 +    vp = &is->pictq[is->pictq_rindex];
 +    if (vp->bmp) {
 +        if (is->subtitle_st) {
 +            if (is->subpq_size > 0) {
 +                sp = &is->subpq[is->subpq_rindex];
 +
 +                if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000)) {
 +                    SDL_LockYUVOverlay (vp->bmp);
 +
 +                    pict.data[0] = vp->bmp->pixels[0];
 +                    pict.data[1] = vp->bmp->pixels[2];
 +                    pict.data[2] = vp->bmp->pixels[1];
 +
 +                    pict.linesize[0] = vp->bmp->pitches[0];
 +                    pict.linesize[1] = vp->bmp->pitches[2];
 +                    pict.linesize[2] = vp->bmp->pitches[1];
 +
 +                    for (i = 0; i < sp->sub.num_rects; i++)
 +                        blend_subrect(&pict, sp->sub.rects[i],
 +                                      vp->bmp->w, vp->bmp->h);
 +
 +                    SDL_UnlockYUVOverlay (vp->bmp);
 +                }
 +            }
 +        }
 +
 +        calculate_display_rect(&rect, is->xleft, is->ytop, is->width, is->height, vp);
 +
 +        SDL_DisplayYUVOverlay(vp->bmp, &rect);
 +    }
 +}
 +
 +static inline int compute_mod(int a, int b)
 +{
 +    return a < 0 ? a%b + b : a%b;
 +}
 +
 +static void video_audio_display(VideoState *s)
 +{
 +    int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
 +    int ch, channels, h, h2, bgcolor, fgcolor;
 +    int16_t time_diff;
 +    int rdft_bits, nb_freq;
 +
 +    for (rdft_bits = 1; (1 << rdft_bits) < 2 * s->height; rdft_bits++)
 +        ;
 +    nb_freq = 1 << (rdft_bits - 1);
 +
 +    /* compute display index : center on currently output samples */
 +    channels = s->audio_tgt.channels;
 +    nb_display_channels = channels;
 +    if (!s->paused) {
 +        int data_used= s->show_mode == SHOW_MODE_WAVES ? s->width : (2*nb_freq);
 +        n = 2 * channels;
 +        delay = s->audio_write_buf_size;
 +        delay /= n;
 +
 +        /* to be more precise, we take into account the time spent since
 +           the last buffer computation */
 +        if (audio_callback_time) {
 +            time_diff = av_gettime() - audio_callback_time;
 +            delay -= (time_diff * s->audio_tgt.freq) / 1000000;
 +        }
 +
 +        delay += 2 * data_used;
 +        if (delay < data_used)
 +            delay = data_used;
 +
 +        i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
 +        if (s->show_mode == SHOW_MODE_WAVES) {
 +            h = INT_MIN;
 +            for (i = 0; i < 1000; i += channels) {
 +                int idx = (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
 +                int a = s->sample_array[idx];
 +                int b = s->sample_array[(idx + 4 * channels) % SAMPLE_ARRAY_SIZE];
 +                int c = s->sample_array[(idx + 5 * channels) % SAMPLE_ARRAY_SIZE];
 +                int d = s->sample_array[(idx + 9 * channels) % SAMPLE_ARRAY_SIZE];
 +                int score = a - d;
 +                if (h < score && (b ^ c) < 0) {
 +                    h = score;
 +                    i_start = idx;
 +                }
 +            }
 +        }
 +
 +        s->last_i_start = i_start;
 +    } else {
 +        i_start = s->last_i_start;
 +    }
 +
 +    bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
 +    if (s->show_mode == SHOW_MODE_WAVES) {
 +        fill_rectangle(screen,
 +                       s->xleft, s->ytop, s->width, s->height,
 +                       bgcolor);
 +
 +        fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
 +
 +        /* total height for one channel */
 +        h = s->height / nb_display_channels;
 +        /* graph height / 2 */
 +        h2 = (h * 9) / 20;
 +        for (ch = 0; ch < nb_display_channels; ch++) {
 +            i = i_start + ch;
 +            y1 = s->ytop + ch * h + (h / 2); /* position of center line */
 +            for (x = 0; x < s->width; x++) {
 +                y = (s->sample_array[i] * h2) >> 15;
 +                if (y < 0) {
 +                    y = -y;
 +                    ys = y1 - y;
 +                } else {
 +                    ys = y1;
 +                }
 +                fill_rectangle(screen,
 +                               s->xleft + x, ys, 1, y,
 +                               fgcolor);
 +                i += channels;
 +                if (i >= SAMPLE_ARRAY_SIZE)
 +                    i -= SAMPLE_ARRAY_SIZE;
 +            }
 +        }
 +
 +        fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
 +
 +        for (ch = 1; ch < nb_display_channels; ch++) {
 +            y = s->ytop + ch * h;
 +            fill_rectangle(screen,
 +                           s->xleft, y, s->width, 1,
 +                           fgcolor);
 +        }
 +        SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
 +    } else {
 +        nb_display_channels= FFMIN(nb_display_channels, 2);
 +        if (rdft_bits != s->rdft_bits) {
 +            av_rdft_end(s->rdft);
 +            av_free(s->rdft_data);
 +            s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
 +            s->rdft_bits = rdft_bits;
 +            s->rdft_data = av_malloc(4 * nb_freq * sizeof(*s->rdft_data));
 +        }
 +        {
 +            FFTSample *data[2];
 +            for (ch = 0; ch < nb_display_channels; ch++) {
 +                data[ch] = s->rdft_data + 2 * nb_freq * ch;
 +                i = i_start + ch;
 +                for (x = 0; x < 2 * nb_freq; x++) {
 +                    double w = (x-nb_freq) * (1.0 / nb_freq);
 +                    data[ch][x] = s->sample_array[i] * (1.0 - w * w);
 +                    i += channels;
 +                    if (i >= SAMPLE_ARRAY_SIZE)
 +                        i -= SAMPLE_ARRAY_SIZE;
 +                }
 +                av_rdft_calc(s->rdft, data[ch]);
 +            }
 +            // least efficient way to do this, we should of course directly access it but its more than fast enough
 +            for (y = 0; y < s->height; y++) {
 +                double w = 1 / sqrt(nb_freq);
 +                int a = sqrt(w * sqrt(data[0][2 * y + 0] * data[0][2 * y + 0] + data[0][2 * y + 1] * data[0][2 * y + 1]));
 +                int b = (nb_display_channels == 2 ) ? sqrt(w * sqrt(data[1][2 * y + 0] * data[1][2 * y + 0]
 +                       + data[1][2 * y + 1] * data[1][2 * y + 1])) : a;
 +                a = FFMIN(a, 255);
 +                b = FFMIN(b, 255);
 +                fgcolor = SDL_MapRGB(screen->format, a, b, (a + b) / 2);
 +
 +                fill_rectangle(screen,
 +                            s->xpos, s->height-y, 1, 1,
 +                            fgcolor);
 +            }
 +        }
 +        SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
 +        if (!s->paused)
 +            s->xpos++;
 +        if (s->xpos >= s->width)
 +            s->xpos= s->xleft;
 +    }
 +}
 +
 +static void stream_close(VideoState *is)
 +{
 +    VideoPicture *vp;
 +    int i;
 +    /* XXX: use a special url_shutdown call to abort parse cleanly */
 +    is->abort_request = 1;
 +    SDL_WaitThread(is->read_tid, NULL);
 +    SDL_WaitThread(is->refresh_tid, NULL);
 +    packet_queue_destroy(&is->videoq);
 +    packet_queue_destroy(&is->audioq);
 +    packet_queue_destroy(&is->subtitleq);
 +
 +    /* free all pictures */
 +    for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
 +        vp = &is->pictq[i];
 +#if CONFIG_AVFILTER
 +        avfilter_unref_bufferp(&vp->picref);
 +#endif
 +        if (vp->bmp) {
 +            SDL_FreeYUVOverlay(vp->bmp);
 +            vp->bmp = NULL;
 +        }
 +    }
 +    SDL_DestroyMutex(is->pictq_mutex);
 +    SDL_DestroyCond(is->pictq_cond);
 +    SDL_DestroyMutex(is->subpq_mutex);
 +    SDL_DestroyCond(is->subpq_cond);
 +    SDL_DestroyCond(is->continue_read_thread);
 +#if !CONFIG_AVFILTER
 +    if (is->img_convert_ctx)
 +        sws_freeContext(is->img_convert_ctx);
 +#endif
 +    av_free(is);
 +}
 +
 +static void do_exit(VideoState *is)
 +{
 +    if (is) {
 +        stream_close(is);
 +    }
 +    av_lockmgr_register(NULL);
 +    uninit_opts();
 +#if CONFIG_AVFILTER
 +    avfilter_uninit();
 +    av_freep(&vfilters);
 +#endif
 +    avformat_network_deinit();
 +    if (show_status)
 +        printf("\n");
 +    SDL_Quit();
 +    av_log(NULL, AV_LOG_QUIET, "%s", "");
 +    exit(0);
 +}
 +
 +static void sigterm_handler(int sig)
 +{
 +    exit(123);
 +}
 +
 +static int video_open(VideoState *is, int force_set_video_mode)
 +{
 +    int flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL;
 +    int w,h;
 +    VideoPicture *vp = &is->pictq[is->pictq_rindex];
 +    SDL_Rect rect;
 +
 +    if (is_full_screen) flags |= SDL_FULLSCREEN;
 +    else                flags |= SDL_RESIZABLE;
 +
 +    if (is_full_screen && fs_screen_width) {
 +        w = fs_screen_width;
 +        h = fs_screen_height;
 +    } else if (!is_full_screen && screen_width) {
 +        w = screen_width;
 +        h = screen_height;
 +    } else if (vp->width) {
 +        calculate_display_rect(&rect, 0, 0, INT_MAX, vp->height, vp);
 +        w = rect.w;
 +        h = rect.h;
 +    } else {
 +        w = 640;
 +        h = 480;
 +    }
 +    if (screen && is->width == screen->w && screen->w == w
 +       && is->height== screen->h && screen->h == h && !force_set_video_mode)
 +        return 0;
 +    screen = SDL_SetVideoMode(w, h, 0, flags);
 +    if (!screen) {
 +        fprintf(stderr, "SDL: could not set video mode - exiting\n");
 +        do_exit(is);
 +    }
 +    if (!window_title)
 +        window_title = input_filename;
 +    SDL_WM_SetCaption(window_title, window_title);
 +
 +    is->width  = screen->w;
 +    is->height = screen->h;
 +
 +    return 0;
 +}
 +
 +/* display the current picture, if any */
 +static void video_display(VideoState *is)
 +{
 +    if (!screen)
 +        video_open(is, 0);
 +    if (is->audio_st && is->show_mode != SHOW_MODE_VIDEO)
 +        video_audio_display(is);
 +    else if (is->video_st)
 +        video_image_display(is);
 +}
 +
 +static int refresh_thread(void *opaque)
 +{
 +    VideoState *is= opaque;
 +    while (!is->abort_request) {
 +        SDL_Event event;
 +        event.type = FF_REFRESH_EVENT;
 +        event.user.data1 = opaque;
 +        if (!is->refresh && (!is->paused || is->force_refresh)) {
 +            is->refresh = 1;
 +            SDL_PushEvent(&event);
 +        }
 +        //FIXME ideally we should wait the correct time but SDLs event passing is so slow it would be silly
 +        av_usleep(is->audio_st && is->show_mode != SHOW_MODE_VIDEO ? rdftspeed*1000 : 5000);
 +    }
 +    return 0;
 +}
 +
 +/* get the current audio clock value */
 +static double get_audio_clock(VideoState *is)
 +{
 +    if (is->paused) {
 +        return is->audio_current_pts;
 +    } else {
 +        return is->audio_current_pts_drift + av_gettime() / 1000000.0;
 +    }
 +}
 +
 +/* get the current video clock value */
 +static double get_video_clock(VideoState *is)
 +{
 +    if (is->paused) {
 +        return is->video_current_pts;
 +    } else {
 +        return is->video_current_pts_drift + av_gettime() / 1000000.0;
 +    }
 +}
 +
 +/* get the current external clock value */
 +static double get_external_clock(VideoState *is)
 +{
 +    int64_t ti;
 +    ti = av_gettime();
 +    return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
 +}
 +
 +/* get the current master clock value */
 +static double get_master_clock(VideoState *is)
 +{
 +    double val;
 +
 +    if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
 +        if (is->video_st)
 +            val = get_video_clock(is);
 +        else
 +            val = get_audio_clock(is);
 +    } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
 +        if (is->audio_st)
 +            val = get_audio_clock(is);
 +        else
 +            val = get_video_clock(is);
 +    } else {
 +        val = get_external_clock(is);
 +    }
 +    return val;
 +}
 +
 +/* seek in the stream */
 +static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
 +{
 +    if (!is->seek_req) {
 +        is->seek_pos = pos;
 +        is->seek_rel = rel;
 +        is->seek_flags &= ~AVSEEK_FLAG_BYTE;
 +        if (seek_by_bytes)
 +            is->seek_flags |= AVSEEK_FLAG_BYTE;
 +        is->seek_req = 1;
 +    }
 +}
 +
 +/* pause or resume the video */
 +static void stream_toggle_pause(VideoState *is)
 +{
 +    if (is->paused) {
 +        is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
 +        if (is->read_pause_return != AVERROR(ENOSYS)) {
 +            is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
 +        }
 +        is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
 +    }
 +    is->paused = !is->paused;
 +}
 +
 +static double compute_target_delay(double delay, VideoState *is)
 +{
 +    double sync_threshold, diff;
 +
 +    /* update delay to follow master synchronisation source */
 +    if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
 +         is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
 +        /* if video is slave, we try to correct big delays by
 +           duplicating or deleting a frame */
 +        diff = get_video_clock(is) - get_master_clock(is);
 +
 +        /* skip or repeat frame. We take into account the
 +           delay to compute the threshold. I still don't know
 +           if it is the best guess */
 +        sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
 +        if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
 +            if (diff <= -sync_threshold)
 +                delay = 0;
 +            else if (diff >= sync_threshold)
 +                delay = 2 * delay;
 +        }
 +    }
 +
 +    av_dlog(NULL, "video: delay=%0.3f A-V=%f\n",
 +            delay, -diff);
 +
 +    return delay;
 +}
 +
 +static void pictq_next_picture(VideoState *is) {
 +    /* update queue size and signal for next picture */
 +    if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
 +        is->pictq_rindex = 0;
 +
 +    SDL_LockMutex(is->pictq_mutex);
 +    is->pictq_size--;
 +    SDL_CondSignal(is->pictq_cond);
 +    SDL_UnlockMutex(is->pictq_mutex);
 +}
 +
 +static void pictq_prev_picture(VideoState *is) {
 +    VideoPicture *prevvp;
 +    /* update queue size and signal for the previous picture */
 +    prevvp = &is->pictq[(is->pictq_rindex + VIDEO_PICTURE_QUEUE_SIZE - 1) % VIDEO_PICTURE_QUEUE_SIZE];
 +    if (prevvp->allocated && !prevvp->skip) {
 +        SDL_LockMutex(is->pictq_mutex);
 +        if (is->pictq_size < VIDEO_PICTURE_QUEUE_SIZE - 1) {
 +            if (--is->pictq_rindex == -1)
 +                is->pictq_rindex = VIDEO_PICTURE_QUEUE_SIZE - 1;
 +            is->pictq_size++;
 +        }
 +        SDL_CondSignal(is->pictq_cond);
 +        SDL_UnlockMutex(is->pictq_mutex);
 +    }
 +}
 +
 +static void update_video_pts(VideoState *is, double pts, int64_t pos) {
 +    double time = av_gettime() / 1000000.0;
 +    /* update current video pts */
 +    is->video_current_pts = pts;
 +    is->video_current_pts_drift = is->video_current_pts - time;
 +    is->video_current_pos = pos;
 +    is->frame_last_pts = pts;
 +}
 +
 +/* called to display each frame */
 +static void video_refresh(void *opaque)
 +{
 +    VideoState *is = opaque;
 +    VideoPicture *vp;
 +    double time;
 +
 +    SubPicture *sp, *sp2;
 +
 +    if (is->video_st) {
 +        if (is->force_refresh)
 +            pictq_prev_picture(is);
 +retry:
 +        if (is->pictq_size == 0) {
 +            SDL_LockMutex(is->pictq_mutex);
 +            if (is->frame_last_dropped_pts != AV_NOPTS_VALUE && is->frame_last_dropped_pts > is->frame_last_pts) {
 +                update_video_pts(is, is->frame_last_dropped_pts, is->frame_last_dropped_pos);
 +                is->frame_last_dropped_pts = AV_NOPTS_VALUE;
 +            }
 +            SDL_UnlockMutex(is->pictq_mutex);
 +            // nothing to do, no picture to display in the que
 +        } else {
 +            double last_duration, duration, delay;
 +            /* dequeue the picture */
 +            vp = &is->pictq[is->pictq_rindex];
 +
 +            if (vp->skip) {
 +                pictq_next_picture(is);
 +                goto retry;
 +            }
 +
 +            if (is->paused)
 +                goto display;
 +
 +            /* compute nominal last_duration */
 +            last_duration = vp->pts - is->frame_last_pts;
 +            if (last_duration > 0 && last_duration < 10.0) {
 +                /* if duration of the last frame was sane, update last_duration in video state */
 +                is->frame_last_duration = last_duration;
 +            }
 +            delay = compute_target_delay(is->frame_last_duration, is);
 +
 +            time= av_gettime()/1000000.0;
 +            if (time < is->frame_timer + delay)
 +                return;
 +
 +            if (delay > 0)
 +                is->frame_timer += delay * FFMAX(1, floor((time-is->frame_timer) / delay));
 +
 +            SDL_LockMutex(is->pictq_mutex);
 +            update_video_pts(is, vp->pts, vp->pos);
 +            SDL_UnlockMutex(is->pictq_mutex);
 +
 +            if (is->pictq_size > 1) {
 +                VideoPicture *nextvp = &is->pictq[(is->pictq_rindex + 1) % VIDEO_PICTURE_QUEUE_SIZE];
 +                duration = nextvp->pts - vp->pts;
 +                if((framedrop>0 || (framedrop && is->audio_st)) && time > is->frame_timer + duration){
 +                    is->frame_drops_late++;
 +                    pictq_next_picture(is);
 +                    goto retry;
 +                }
 +            }
 +
 +            if (is->subtitle_st) {
 +                if (is->subtitle_stream_changed) {
 +                    SDL_LockMutex(is->subpq_mutex);
 +
 +                    while (is->subpq_size) {
 +                        free_subpicture(&is->subpq[is->subpq_rindex]);
 +
 +                        /* update queue size and signal for next picture */
 +                        if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
 +                            is->subpq_rindex = 0;
 +
 +                        is->subpq_size--;
 +                    }
 +                    is->subtitle_stream_changed = 0;
 +
 +                    SDL_CondSignal(is->subpq_cond);
 +                    SDL_UnlockMutex(is->subpq_mutex);
 +                } else {
 +                    if (is->subpq_size > 0) {
 +                        sp = &is->subpq[is->subpq_rindex];
 +
 +                        if (is->subpq_size > 1)
 +                            sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
 +                        else
 +                            sp2 = NULL;
 +
 +                        if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
 +                                || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
 +                        {
 +                            free_subpicture(sp);
 +
 +                            /* update queue size and signal for next picture */
 +                            if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
 +                                is->subpq_rindex = 0;
 +
 +                            SDL_LockMutex(is->subpq_mutex);
 +                            is->subpq_size--;
 +                            SDL_CondSignal(is->subpq_cond);
 +                            SDL_UnlockMutex(is->subpq_mutex);
 +                        }
 +                    }
 +                }
 +            }
 +
 +display:
 +            /* display picture */
 +            if (!display_disable)
 +                video_display(is);
 +
 +            pictq_next_picture(is);
 +        }
 +    } else if (is->audio_st) {
 +        /* draw the next audio frame */
 +
 +        /* if only audio stream, then display the audio bars (better
 +           than nothing, just to test the implementation */
 +
 +        /* display picture */
 +        if (!display_disable)
 +            video_display(is);
 +    }
 +    is->force_refresh = 0;
 +    if (show_status) {
 +        static int64_t last_time;
 +        int64_t cur_time;
 +        int aqsize, vqsize, sqsize;
 +        double av_diff;
 +
 +        cur_time = av_gettime();
 +        if (!last_time || (cur_time - last_time) >= 30000) {
 +            aqsize = 0;
 +            vqsize = 0;
 +            sqsize = 0;
 +            if (is->audio_st)
 +                aqsize = is->audioq.size;
 +            if (is->video_st)
 +                vqsize = is->videoq.size;
 +            if (is->subtitle_st)
 +                sqsize = is->subtitleq.size;
 +            av_diff = 0;
 +            if (is->audio_st && is->video_st)
 +                av_diff = get_audio_clock(is) - get_video_clock(is);
 +            printf("%7.2f A-V:%7.3f fd=%4d aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64"   \r",
 +                   get_master_clock(is),
 +                   av_diff,
 +                   is->frame_drops_early + is->frame_drops_late,
 +                   aqsize / 1024,
 +                   vqsize / 1024,
 +                   sqsize,
 +                   is->video_st ? is->video_st->codec->pts_correction_num_faulty_dts : 0,
 +                   is->video_st ? is->video_st->codec->pts_correction_num_faulty_pts : 0);
 +            fflush(stdout);
 +            last_time = cur_time;
 +        }
 +    }
 +}
 +
 +/* allocate a picture (needs to do that in main thread to avoid
 +   potential locking problems */
 +static void alloc_picture(VideoState *is)
 +{
 +    VideoPicture *vp;
 +
 +    vp = &is->pictq[is->pictq_windex];
 +
 +    if (vp->bmp)
 +        SDL_FreeYUVOverlay(vp->bmp);
 +
 +#if CONFIG_AVFILTER
 +    avfilter_unref_bufferp(&vp->picref);
 +#endif
 +
 +    video_open(is, 0);
 +
 +    vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
 +                                   SDL_YV12_OVERLAY,
 +                                   screen);
 +    if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
 +        /* SDL allocates a buffer smaller than requested if the video
 +         * overlay hardware is unable to support the requested size. */
 +        fprintf(stderr, "Error: the video system does not support an image\n"
 +                        "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n"
 +                        "to reduce the image size.\n", vp->width, vp->height );
 +        do_exit(is);
 +    }
 +
 +    SDL_LockMutex(is->pictq_mutex);
 +    vp->allocated = 1;
 +    SDL_CondSignal(is->pictq_cond);
 +    SDL_UnlockMutex(is->pictq_mutex);
 +}
 +
 +static int queue_picture(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
 +{
 +    VideoPicture *vp;
 +    double frame_delay, pts = pts1;
 +
 +    /* compute the exact PTS for the picture if it is omitted in the stream
 + &