Merge commit '5d3addb937946eca5391e40b5e6308e74ac6f77b'
authorMichael Niedermayer <michael@niedermayer.cc>
Mon, 20 Jul 2015 22:54:42 +0000 (00:54 +0200)
committerMichael Niedermayer <michael@niedermayer.cc>
Mon, 20 Jul 2015 22:54:42 +0000 (00:54 +0200)
* commit '5d3addb937946eca5391e40b5e6308e74ac6f77b':
  Add a quality factor packet side data

Conflicts:
doc/APIchanges
ffmpeg.c
libavcodec/avcodec.h
libavcodec/mpegvideo_enc.c
libavcodec/version.h

Merged-by: Michael Niedermayer <michael@niedermayer.cc>
12 files changed:
1  2 
doc/APIchanges
ffmpeg.c
ffmpeg.h
libavcodec/avcodec.h
libavcodec/dnxhdenc.c
libavcodec/libx264.c
libavcodec/libxavs.c
libavcodec/libxvid.c
libavcodec/mpegvideo_enc.c
libavcodec/svq1enc.c
libavcodec/version.h
libavformat/dump.c

diff --cc doc/APIchanges
@@@ -15,10 -13,9 +15,13 @@@ libavutil:     2014-08-0
  
  API changes, most recent first:
  
+ 2015-xx-xx - xxxxxxx - lavc 56.33.0 - avcodec.h
+   Add AV_PKT_DATA_QUALITY_FACTOR to export the quality value of an AVPacket.
 +2015-07-16 - xxxxxxxx - lavc 56.49.100
 +  Add av_codec_get_codec_properties(), FF_CODEC_PROPERTY_LOSSLESS
 +  and FF_CODEC_PROPERTY_CLOSED_CAPTIONS
 +
  2015-xx-xx - xxxxxxx - lavu 56.15.0
    Add av_version_info().
  
diff --cc ffmpeg.c
index f9052ff,0000000..635ac31
mode 100644,000000..100644
--- /dev/null
+++ b/ffmpeg.c
@@@ -1,4131 -1,0 +1,4138 @@@
-         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame ? enc->coded_frame->quality / (float)FF_QP2LAMBDA : 0);
 +/*
 + * 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>
 +#include <stdint.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 "libswresample/swresample.h"
 +#include "libavutil/opt.h"
 +#include "libavutil/channel_layout.h"
 +#include "libavutil/parseutils.h"
 +#include "libavutil/samplefmt.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 "libavutil/threadmessage.h"
 +#include "libavcodec/mathops.h"
 +#include "libavformat/os_support.h"
 +
 +# include "libavfilter/avcodec.h"
 +# include "libavfilter/avfilter.h"
 +# include "libavfilter/buffersrc.h"
 +# include "libavfilter/buffersink.h"
 +
 +#if HAVE_SYS_RESOURCE_H
 +#include <sys/time.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_SETCONSOLECTRLHANDLER
 +#include <windows.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;
 +
 +const char *const forced_keyframes_const_names[] = {
 +    "n",
 +    "n_forced",
 +    "prev_forced_n",
 +    "prev_forced_t",
 +    "t",
 +    NULL
 +};
 +
 +static void do_video_stats(OutputStream *ost, int frame_size);
 +static int64_t getutime(void);
 +static int64_t getmaxrss(void);
 +
 +static int run_as_daemon  = 0;
 +static int nb_frames_dup = 0;
 +static int nb_frames_drop = 0;
 +static int64_t decode_error_stat[2];
 +
 +static int current_time;
 +AVIOContext *progress_avio = NULL;
 +
 +static uint8_t *subtitle_out;
 +
 +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
 +
 +#if HAVE_PTHREADS
 +static void free_input_threads(void);
 +#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 int sub2video_get_blank_frame(InputStream *ist)
 +{
 +    int ret;
 +    AVFrame *frame = ist->sub2video.frame;
 +
 +    av_frame_unref(frame);
 +    ist->sub2video.frame->width  = ist->sub2video.w;
 +    ist->sub2video.frame->height = ist->sub2video.h;
 +    ist->sub2video.frame->format = AV_PIX_FMT_RGB32;
 +    if ((ret = av_frame_get_buffer(frame, 32)) < 0)
 +        return ret;
 +    memset(frame->data[0], 0, frame->height * frame->linesize[0]);
 +    return 0;
 +}
 +
 +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)
 +{
 +    AVFrame *frame = ist->sub2video.frame;
 +    int i;
 +
 +    av_assert1(frame->data[0]);
 +    ist->sub2video.last_pts = frame->pts = pts;
 +    for (i = 0; i < ist->nb_filters; i++)
 +        av_buffersrc_add_frame_flags(ist->filters[i]->filter, frame,
 +                                     AV_BUFFERSRC_FLAG_KEEP_REF |
 +                                     AV_BUFFERSRC_FLAG_PUSH);
 +}
 +
 +static void sub2video_update(InputStream *ist, AVSubtitle *sub)
 +{
 +    int w = ist->sub2video.w, h = ist->sub2video.h;
 +    AVFrame *frame = ist->sub2video.frame;
 +    int8_t *dst;
 +    int     dst_linesize;
 +    int num_rects, i;
 +    int64_t pts, end_pts;
 +
 +    if (!frame)
 +        return;
 +    if (sub) {
 +        pts       = av_rescale_q(sub->pts + sub->start_display_time * 1000LL,
 +                                 AV_TIME_BASE_Q, ist->st->time_base);
 +        end_pts   = av_rescale_q(sub->pts + sub->end_display_time   * 1000LL,
 +                                 AV_TIME_BASE_Q, ist->st->time_base);
 +        num_rects = sub->num_rects;
 +    } else {
 +        pts       = ist->sub2video.end_pts;
 +        end_pts   = INT64_MAX;
 +        num_rects = 0;
 +    }
 +    if (sub2video_get_blank_frame(ist) < 0) {
 +        av_log(ist->dec_ctx, AV_LOG_ERROR,
 +               "Impossible to get a blank canvas.\n");
 +        return;
 +    }
 +    dst          = frame->data    [0];
 +    dst_linesize = frame->linesize[0];
 +    for (i = 0; i < num_rects; i++)
 +        sub2video_copy_rect(dst, dst_linesize, w, h, sub->rects[i]);
 +    sub2video_push_ref(ist, pts);
 +    ist->sub2video.end_pts = end_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.frame)
 +            continue;
 +        /* subtitles seem to be usually muxed ahead of other streams;
 +           if not, subtracting 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;
 +        if (pts2 >= ist2->sub2video.end_pts || !ist2->sub2video.frame->data[0])
 +            sub2video_update(ist2, NULL);
 +        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;
 +
 +    if (ist->sub2video.end_pts < INT64_MAX)
 +        sub2video_update(ist, NULL);
 +    for (i = 0; i < ist->nb_filters; i++)
 +        av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
 +}
 +
 +/* end of sub2video hack */
 +
 +static void term_exit_sigsafe(void)
 +{
 +#if HAVE_TERMIOS_H
 +    if(restore_tty)
 +        tcsetattr (0, TCSANOW, &oldtty);
 +#endif
 +}
 +
 +void term_exit(void)
 +{
 +    av_log(NULL, AV_LOG_QUIET, "%s", "");
 +    term_exit_sigsafe();
 +}
 +
 +static volatile int received_sigterm = 0;
 +static volatile int received_nb_signals = 0;
 +static volatile int transcode_init_done = 0;
 +static volatile int ffmpeg_exited = 0;
 +static int main_return_code = 0;
 +
 +static void
 +sigterm_handler(int sig)
 +{
 +    received_sigterm = sig;
 +    received_nb_signals++;
 +    term_exit_sigsafe();
 +    if(received_nb_signals > 3) {
 +        write(2/*STDERR_FILENO*/, "Received > 3 system signals, hard exiting\n",
 +                           strlen("Received > 3 system signals, hard exiting\n"));
 +
 +        exit(123);
 +    }
 +}
 +
 +#if HAVE_SETCONSOLECTRLHANDLER
 +static BOOL WINAPI CtrlHandler(DWORD fdwCtrlType)
 +{
 +    av_log(NULL, AV_LOG_DEBUG, "\nReceived windows signal %ld\n", fdwCtrlType);
 +
 +    switch (fdwCtrlType)
 +    {
 +    case CTRL_C_EVENT:
 +    case CTRL_BREAK_EVENT:
 +        sigterm_handler(SIGINT);
 +        return TRUE;
 +
 +    case CTRL_CLOSE_EVENT:
 +    case CTRL_LOGOFF_EVENT:
 +    case CTRL_SHUTDOWN_EVENT:
 +        sigterm_handler(SIGTERM);
 +        /* Basically, with these 3 events, when we return from this method the
 +           process is hard terminated, so stall as long as we need to
 +           to try and let the main thread(s) clean up and gracefully terminate
 +           (we have at most 5 seconds, but should be done far before that). */
 +        while (!ffmpeg_exited) {
 +            Sleep(0);
 +        }
 +        return TRUE;
 +
 +    default:
 +        av_log(NULL, AV_LOG_ERROR, "Received unknown windows signal %ld\n", fdwCtrlType);
 +        return FALSE;
 +    }
 +}
 +#endif
 +
 +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;
 +
 +            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
 +
 +    signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).    */
 +    signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
 +#ifdef SIGXCPU
 +    signal(SIGXCPU, sigterm_handler);
 +#endif
 +#if HAVE_SETCONSOLECTRLHANDLER
 +    SetConsoleCtrlHandler((PHANDLER_ROUTINE) CtrlHandler, TRUE);
 +#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)) {
 +            // input pipe may have been closed by the program that ran ffmpeg
 +            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 > transcode_init_done;
 +}
 +
 +const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
 +
 +static void ffmpeg_cleanup(int ret)
 +{
 +    int i, j;
 +
 +    if (do_benchmark) {
 +        int maxrss = getmaxrss() / 1024;
 +        av_log(NULL, AV_LOG_INFO, "bench: maxrss=%ikB\n", maxrss);
 +    }
 +
 +    for (i = 0; i < nb_filtergraphs; i++) {
 +        FilterGraph *fg = filtergraphs[i];
 +        avfilter_graph_free(&fg->graph);
 +        for (j = 0; j < fg->nb_inputs; j++) {
 +            av_freep(&fg->inputs[j]->name);
 +            av_freep(&fg->inputs[j]);
 +        }
 +        av_freep(&fg->inputs);
 +        for (j = 0; j < fg->nb_outputs; j++) {
 +            av_freep(&fg->outputs[j]->name);
 +            av_freep(&fg->outputs[j]);
 +        }
 +        av_freep(&fg->outputs);
 +        av_freep(&fg->graph_desc);
 +
 +        av_freep(&filtergraphs[i]);
 +    }
 +    av_freep(&filtergraphs);
 +
 +    av_freep(&subtitle_out);
 +
 +    /* close files */
 +    for (i = 0; i < nb_output_files; i++) {
 +        OutputFile *of = output_files[i];
 +        AVFormatContext *s;
 +        if (!of)
 +            continue;
 +        s = of->ctx;
 +        if (s && s->oformat && !(s->oformat->flags & AVFMT_NOFILE))
 +            avio_closep(&s->pb);
 +        avformat_free_context(s);
 +        av_dict_free(&of->opts);
 +
 +        av_freep(&output_files[i]);
 +    }
 +    for (i = 0; i < nb_output_streams; i++) {
 +        OutputStream *ost = output_streams[i];
 +        AVBitStreamFilterContext *bsfc;
 +
 +        if (!ost)
 +            continue;
 +
 +        bsfc = ost->bitstream_filters;
 +        while (bsfc) {
 +            AVBitStreamFilterContext *next = bsfc->next;
 +            av_bitstream_filter_close(bsfc);
 +            bsfc = next;
 +        }
 +        ost->bitstream_filters = NULL;
 +        av_frame_free(&ost->filtered_frame);
 +        av_frame_free(&ost->last_frame);
 +
 +        av_parser_close(ost->parser);
 +
 +        av_freep(&ost->forced_keyframes);
 +        av_expr_free(ost->forced_keyframes_pexpr);
 +        av_freep(&ost->avfilter);
 +        av_freep(&ost->logfile_prefix);
 +
 +        av_freep(&ost->audio_channels_map);
 +        ost->audio_channels_mapped = 0;
 +
 +        avcodec_free_context(&ost->enc_ctx);
 +
 +        av_freep(&output_streams[i]);
 +    }
 +#if HAVE_PTHREADS
 +    free_input_threads();
 +#endif
 +    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++) {
 +        InputStream *ist = input_streams[i];
 +
 +        av_frame_free(&ist->decoded_frame);
 +        av_frame_free(&ist->filter_frame);
 +        av_dict_free(&ist->decoder_opts);
 +        avsubtitle_free(&ist->prev_sub.subtitle);
 +        av_frame_free(&ist->sub2video.frame);
 +        av_freep(&ist->filters);
 +        av_freep(&ist->hwaccel_device);
 +
 +        avcodec_free_context(&ist->dec_ctx);
 +
 +        av_freep(&input_streams[i]);
 +    }
 +
 +    if (vstats_file)
 +        fclose(vstats_file);
 +    av_freep(&vstats_filename);
 +
 +    av_freep(&input_streams);
 +    av_freep(&input_files);
 +    av_freep(&output_streams);
 +    av_freep(&output_files);
 +
 +    uninit_opts();
 +
 +    avformat_network_deinit();
 +
 +    if (received_sigterm) {
 +        av_log(NULL, AV_LOG_INFO, "Exiting normally, received signal %d.\n",
 +               (int) received_sigterm);
 +    } else if (ret && transcode_init_done) {
 +        av_log(NULL, AV_LOG_INFO, "Conversion failed!\n");
 +    }
 +    term_exit();
 +    ffmpeg_exited = 1;
 +}
 +
 +void remove_avoptions(AVDictionary **a, AVDictionary *b)
 +{
 +    AVDictionaryEntry *t = NULL;
 +
 +    while ((t = av_dict_get(b, "", t, AV_DICT_IGNORE_SUFFIX))) {
 +        av_dict_set(a, t->key, NULL, AV_DICT_MATCH_CASE);
 +    }
 +}
 +
 +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);
 +    }
 +}
 +
 +static void abort_codec_experimental(AVCodec *c, int encoder)
 +{
 +    exit_program(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);
 +            av_log(NULL, AV_LOG_INFO, "bench: %8"PRIu64" %s \n", t - current_time, buf);
 +        }
 +        current_time = t;
 +    }
 +}
 +
 +static void close_all_output_streams(OutputStream *ost, OSTFinished this_stream, OSTFinished others)
 +{
 +    int i;
 +    for (i = 0; i < nb_output_streams; i++) {
 +        OutputStream *ost2 = output_streams[i];
 +        ost2->finished |= ost == ost2 ? this_stream : others;
 +    }
 +}
 +
 +static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
 +{
 +    AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
 +    AVCodecContext          *avctx = ost->encoding_needed ? ost->enc_ctx : ost->st->codec;
 +    int ret;
 +
 +    if (!ost->st->codec->extradata_size && ost->enc_ctx->extradata_size) {
 +        ost->st->codec->extradata = av_mallocz(ost->enc_ctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 +        if (ost->st->codec->extradata) {
 +            memcpy(ost->st->codec->extradata, ost->enc_ctx->extradata, ost->enc_ctx->extradata_size);
 +            ost->st->codec->extradata_size = ost->enc_ctx->extradata_size;
 +        }
 +    }
 +
 +    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;
 +
 +    /*
 +     * 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++;
 +    }
++    if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
++        uint8_t *sd = av_packet_get_side_data(pkt, AV_PKT_DATA_QUALITY_FACTOR,
++                                              NULL);
++        ost->quality = sd ? *(int *)sd : -1;
++    }
 +
 +    if (bsfc)
 +        av_packet_split_side_data(pkt);
 +
 +    while (bsfc) {
 +        AVPacket new_pkt = *pkt;
 +        AVDictionaryEntry *bsf_arg = av_dict_get(ost->bsf_args,
 +                                                 bsfc->filter->name,
 +                                                 NULL, 0);
 +        int a = av_bitstream_filter_filter(bsfc, avctx,
 +                                           bsf_arg ? bsf_arg->value : 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;
 +                new_pkt.buf = NULL;
 +                a = 1;
 +            } else
 +                a = AVERROR(ENOMEM);
 +        }
 +        if (a > 0) {
 +            pkt->side_data = NULL;
 +            pkt->side_data_elems = 0;
 +            av_free_packet(pkt);
 +            new_pkt.buf = av_buffer_create(new_pkt.data, new_pkt.size,
 +                                           av_buffer_default_free, NULL, 0);
 +            if (!new_pkt.buf)
 +                exit_program(1);
 +        } else if (a < 0) {
 +            new_pkt = *pkt;
 +            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);
 +        }
 +        *pkt = new_pkt;
 +
 +        bsfc = bsfc->next;
 +    }
 +
 +    if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS)) {
 +        if (pkt->dts != AV_NOPTS_VALUE &&
 +            pkt->pts != AV_NOPTS_VALUE &&
 +            pkt->dts > pkt->pts) {
 +            av_log(s, AV_LOG_WARNING, "Invalid DTS: %"PRId64" PTS: %"PRId64" in output stream %d:%d, replacing by guess\n",
 +                   pkt->dts, pkt->pts,
 +                   ost->file_index, ost->st->index);
 +            pkt->pts =
 +            pkt->dts = pkt->pts + pkt->dts + ost->last_mux_dts + 1
 +                     - FFMIN3(pkt->pts, pkt->dts, ost->last_mux_dts + 1)
 +                     - FFMAX3(pkt->pts, pkt->dts, ost->last_mux_dts + 1);
 +        }
 +     if(
 +        (avctx->codec_type == AVMEDIA_TYPE_AUDIO || avctx->codec_type == AVMEDIA_TYPE_VIDEO) &&
 +        pkt->dts != AV_NOPTS_VALUE &&
 +        ost->last_mux_dts != AV_NOPTS_VALUE) {
 +      int64_t max = ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT);
 +      if (pkt->dts < max) {
 +        int loglevel = max - pkt->dts > 2 || avctx->codec_type == AVMEDIA_TYPE_VIDEO ? AV_LOG_WARNING : AV_LOG_DEBUG;
 +        av_log(s, loglevel, "Non-monotonous DTS in output stream "
 +               "%d:%d; previous: %"PRId64", current: %"PRId64"; ",
 +               ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts);
 +        if (exit_on_error) {
 +            av_log(NULL, AV_LOG_FATAL, "aborting.\n");
 +            exit_program(1);
 +        }
 +        av_log(s, loglevel, "changing to %"PRId64". This may result "
 +               "in incorrect timestamps in the output file.\n",
 +               max);
 +        if(pkt->pts >= pkt->dts)
 +            pkt->pts = FFMAX(pkt->pts, max);
 +        pkt->dts = max;
 +      }
 +     }
 +    }
 +    ost->last_mux_dts = pkt->dts;
 +
 +    ost->data_size += pkt->size;
 +    ost->packets_written++;
 +
 +    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->enc_ctx->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);
 +        main_return_code = 1;
 +        close_all_output_streams(ost, MUXER_FINISHED | ENCODER_FINISHED, ENCODER_FINISHED);
 +    }
 +    av_free_packet(pkt);
 +}
 +
 +static void close_output_stream(OutputStream *ost)
 +{
 +    OutputFile *of = output_files[ost->file_index];
 +
 +    ost->finished |= ENCODER_FINISHED;
 +    if (of->shortest) {
 +        int64_t end = av_rescale_q(ost->sync_opts - ost->first_pts, ost->enc_ctx->time_base, AV_TIME_BASE_Q);
 +        of->recording_time = FFMIN(of->recording_time, end);
 +    }
 +}
 +
 +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->enc_ctx->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->enc_ctx;
 +    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;
 +    ost->samples_encoded += frame->nb_samples;
 +    ost->frames_encoded++;
 +
 +    av_assert0(pkt.size || !pkt.data);
 +    update_benchmark(NULL);
 +    if (debug_ts) {
 +        av_log(NULL, AV_LOG_INFO, "encoder <- type:audio "
 +               "frame_pts:%s frame_pts_time:%s time_base:%d/%d\n",
 +               av_ts2str(frame->pts), av_ts2timestr(frame->pts, &enc->time_base),
 +               enc->time_base.num, enc->time_base.den);
 +    }
 +
 +    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);
 +    }
 +    update_benchmark("encode_audio %d.%d", ost->file_index, ost->index);
 +
 +    if (got_packet) {
 +        av_packet_rescale_ts(&pkt, 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));
 +        }
 +
 +        write_frame(s, &pkt, ost);
 +    }
 +}
 +
 +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);
 +        return;
 +    }
 +
 +    enc = ost->enc_ctx;
 +
 +    if (!subtitle_out) {
 +        subtitle_out = av_malloc(subtitle_out_max_size);
 +        if (!subtitle_out) {
 +            av_log(NULL, AV_LOG_FATAL, "Failed to allocate subtitle_out\n");
 +            exit_program(1);
 +        }
 +    }
 +
 +    /* 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;
 +    if (output_files[ost->file_index]->start_time != AV_NOPTS_VALUE)
 +        pts -= output_files[ost->file_index]->start_time;
 +    for (i = 0; i < nb; i++) {
 +        unsigned save_num_rects = sub->num_rects;
 +
 +        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;
 +
 +        ost->frames_encoded++;
 +
 +        subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
 +                                                    subtitle_out_max_size, sub);
 +        if (i == 1)
 +            sub->num_rects = save_num_rects;
 +        if (subtitle_out_size < 0) {
 +            av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
 +            exit_program(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;
 +        }
 +        pkt.dts = pkt.pts;
 +        write_frame(s, &pkt, ost);
 +    }
 +}
 +
 +static void do_video_out(AVFormatContext *s,
 +                         OutputStream *ost,
 +                         AVFrame *next_picture,
 +                         double sync_ipts)
 +{
 +    int ret, format_video_sync;
 +    AVPacket pkt;
 +    AVCodecContext *enc = ost->enc_ctx;
 +    AVCodecContext *mux_enc = ost->st->codec;
 +    int nb_frames, nb0_frames, i;
 +    double delta, delta0;
 +    double duration = 0;
 +    int frame_size = 0;
 +    InputStream *ist = NULL;
 +    AVFilterContext *filter = ost->filter->filter;
 +
 +    if (ost->source_index >= 0)
 +        ist = input_streams[ost->source_index];
 +
 +    if (filter->inputs[0]->frame_rate.num > 0 &&
 +        filter->inputs[0]->frame_rate.den > 0)
 +        duration = 1/(av_q2d(filter->inputs[0]->frame_rate) * av_q2d(enc->time_base));
 +
 +    if(ist && ist->st->start_time != AV_NOPTS_VALUE && ist->st->first_dts != AV_NOPTS_VALUE && ost->frame_rate.num)
 +        duration = FFMIN(duration, 1/(av_q2d(ost->frame_rate) * av_q2d(enc->time_base)));
 +
 +    if (!ost->filters_script &&
 +        !ost->filters &&
 +        next_picture &&
 +        ist &&
 +        lrintf(av_frame_get_pkt_duration(next_picture) * av_q2d(ist->st->time_base) / av_q2d(enc->time_base)) > 0) {
 +        duration = lrintf(av_frame_get_pkt_duration(next_picture) * av_q2d(ist->st->time_base) / av_q2d(enc->time_base));
 +    }
 +
 +    if (!next_picture) {
 +        //end, flushing
 +        nb0_frames = nb_frames = mid_pred(ost->last_nb0_frames[0],
 +                                          ost->last_nb0_frames[1],
 +                                          ost->last_nb0_frames[2]);
 +    } else {
 +        delta0 = sync_ipts - ost->sync_opts;
 +        delta  = delta0 + duration;
 +
 +        /* by default, we output a single frame */
 +        nb0_frames = 0;
 +        nb_frames = 1;
 +
 +        format_video_sync = video_sync_method;
 +        if (format_video_sync == VSYNC_AUTO) {
 +            if(!strcmp(s->oformat->name, "avi")) {
 +                format_video_sync = VSYNC_VFR;
 +            } else
 +                format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? ((s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH : VSYNC_VFR) : VSYNC_CFR;
 +            if (   ist
 +                && format_video_sync == VSYNC_CFR
 +                && input_files[ist->file_index]->ctx->nb_streams == 1
 +                && input_files[ist->file_index]->input_ts_offset == 0) {
 +                format_video_sync = VSYNC_VSCFR;
 +            }
 +            if (format_video_sync == VSYNC_CFR && copy_ts) {
 +                format_video_sync = VSYNC_VSCFR;
 +            }
 +        }
 +
 +        if (delta0 < 0 &&
 +            delta > 0 &&
 +            format_video_sync != VSYNC_PASSTHROUGH &&
 +            format_video_sync != VSYNC_DROP) {
 +            double cor = FFMIN(-delta0, duration);
 +            if (delta0 < -0.6) {
 +                av_log(NULL, AV_LOG_WARNING, "Past duration %f too large\n", -delta0);
 +            } else
 +                av_log(NULL, AV_LOG_DEBUG, "Cliping frame in rate conversion by %f\n", -delta0);
 +            sync_ipts += cor;
 +            duration -= cor;
 +            delta0 += cor;
 +        }
 +
 +        switch (format_video_sync) {
 +        case VSYNC_VSCFR:
 +            if (ost->frame_number == 0 && delta - duration >= 0.5) {
 +                av_log(NULL, AV_LOG_DEBUG, "Not duplicating %d initial frames\n", (int)lrintf(delta - duration));
 +                delta = duration;
 +                delta0 = 0;
 +                ost->sync_opts = lrint(sync_ipts);
 +            }
 +        case VSYNC_CFR:
 +            // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
 +            if (frame_drop_threshold && delta < frame_drop_threshold && ost->frame_number) {
 +                nb_frames = 0;
 +            } else if (delta < -1.1)
 +                nb_frames = 0;
 +            else if (delta > 1.1) {
 +                nb_frames = lrintf(delta);
 +                if (delta0 > 1.1)
 +                    nb0_frames = lrintf(delta0 - 0.6);
 +            }
 +            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);
 +    nb0_frames = FFMIN(nb0_frames, nb_frames);
 +
 +    memmove(ost->last_nb0_frames + 1,
 +            ost->last_nb0_frames,
 +            sizeof(ost->last_nb0_frames[0]) * (FF_ARRAY_ELEMS(ost->last_nb0_frames) - 1));
 +    ost->last_nb0_frames[0] = nb0_frames;
 +
 +    if (nb0_frames == 0 && ost->last_droped) {
 +        nb_frames_drop++;
 +        av_log(NULL, AV_LOG_VERBOSE,
 +               "*** dropping frame %d from stream %d at ts %"PRId64"\n",
 +               ost->frame_number, ost->st->index, ost->last_frame->pts);
 +    }
 +    if (nb_frames > (nb0_frames && ost->last_droped) + (nb_frames > nb0_frames)) {
 +        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 - (nb0_frames && ost->last_droped) - (nb_frames > nb0_frames);
 +        av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
 +    }
 +    ost->last_droped = nb_frames == nb0_frames && next_picture;
 +
 +  /* duplicates frame if needed */
 +  for (i = 0; i < nb_frames; i++) {
 +    AVFrame *in_picture;
 +    av_init_packet(&pkt);
 +    pkt.data = NULL;
 +    pkt.size = 0;
 +
 +    if (i < nb0_frames && ost->last_frame) {
 +        in_picture = ost->last_frame;
 +    } else
 +        in_picture = next_picture;
 +
 +    if (!in_picture)
 +        return;
 +
 +    in_picture->pts = ost->sync_opts;
 +
 +#if 1
 +    if (!check_recording_time(ost))
 +#else
 +    if (ost->frame_number >= ost->max_frames)
 +#endif
 +        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. */
 +        if (in_picture->interlaced_frame)
 +            mux_enc->field_order = in_picture->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
 +        else
 +            mux_enc->field_order = AV_FIELD_PROGRESSIVE;
 +        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;
 +
 +        write_frame(s, &pkt, ost);
 +    } else {
 +        int got_packet, forced_keyframe = 0;
 +        double pts_time;
 +
 +        if (enc->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME) &&
 +            ost->top_field_first >= 0)
 +            in_picture->top_field_first = !!ost->top_field_first;
 +
 +        if (in_picture->interlaced_frame) {
 +            if (enc->codec->id == AV_CODEC_ID_MJPEG)
 +                mux_enc->field_order = in_picture->top_field_first ? AV_FIELD_TT:AV_FIELD_BB;
 +            else
 +                mux_enc->field_order = in_picture->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
 +        } else
 +            mux_enc->field_order = AV_FIELD_PROGRESSIVE;
 +
 +        in_picture->quality = enc->global_quality;
 +        in_picture->pict_type = 0;
 +
 +        pts_time = in_picture->pts != AV_NOPTS_VALUE ?
 +            in_picture->pts * av_q2d(enc->time_base) : NAN;
 +        if (ost->forced_kf_index < ost->forced_kf_count &&
 +            in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
 +            ost->forced_kf_index++;
 +            forced_keyframe = 1;
 +        } else if (ost->forced_keyframes_pexpr) {
 +            double res;
 +            ost->forced_keyframes_expr_const_values[FKF_T] = pts_time;
 +            res = av_expr_eval(ost->forced_keyframes_pexpr,
 +                               ost->forced_keyframes_expr_const_values, NULL);
 +            av_dlog(NULL, "force_key_frame: n:%f n_forced:%f prev_forced_n:%f t:%f prev_forced_t:%f -> res:%f\n",
 +                    ost->forced_keyframes_expr_const_values[FKF_N],
 +                    ost->forced_keyframes_expr_const_values[FKF_N_FORCED],
 +                    ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N],
 +                    ost->forced_keyframes_expr_const_values[FKF_T],
 +                    ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T],
 +                    res);
 +            if (res) {
 +                forced_keyframe = 1;
 +                ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N] =
 +                    ost->forced_keyframes_expr_const_values[FKF_N];
 +                ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T] =
 +                    ost->forced_keyframes_expr_const_values[FKF_T];
 +                ost->forced_keyframes_expr_const_values[FKF_N_FORCED] += 1;
 +            }
 +
 +            ost->forced_keyframes_expr_const_values[FKF_N] += 1;
 +        } else if (   ost->forced_keyframes
 +                   && !strncmp(ost->forced_keyframes, "source", 6)
 +                   && in_picture->key_frame==1) {
 +            forced_keyframe = 1;
 +        }
 +
 +        if (forced_keyframe) {
 +            in_picture->pict_type = AV_PICTURE_TYPE_I;
 +            av_log(NULL, AV_LOG_DEBUG, "Forced keyframe at time %f\n", pts_time);
 +        }
 +
 +        update_benchmark(NULL);
 +        if (debug_ts) {
 +            av_log(NULL, AV_LOG_INFO, "encoder <- type:video "
 +                   "frame_pts:%s frame_pts_time:%s time_base:%d/%d\n",
 +                   av_ts2str(in_picture->pts), av_ts2timestr(in_picture->pts, &enc->time_base),
 +                   enc->time_base.num, enc->time_base.den);
 +        }
 +
 +        ost->frames_encoded++;
 +
 +        ret = avcodec_encode_video2(enc, &pkt, in_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);
 +        }
 +
 +        if (got_packet) {
 +            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, &enc->time_base),
 +                       av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &enc->time_base));
 +            }
 +
 +            if (pkt.pts == AV_NOPTS_VALUE && !(enc->codec->capabilities & CODEC_CAP_DELAY))
 +                pkt.pts = ost->sync_opts;
 +
 +            av_packet_rescale_ts(&pkt, 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;
 +            write_frame(s, &pkt, ost);
 +
 +            /* 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(ost, frame_size);
 +  }
 +
 +    if (!ost->last_frame)
 +        ost->last_frame = av_frame_alloc();
 +    av_frame_unref(ost->last_frame);
 +    if (next_picture && ost->last_frame)
 +        av_frame_ref(ost->last_frame, next_picture);
 +    else
 +        av_frame_free(&ost->last_frame);
 +}
 +
 +static double psnr(double d)
 +{
 +    return -10.0 * log(d) / log(10.0);
 +}
 +
 +static void do_video_stats(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);
 +        }
 +    }
 +
 +    enc = ost->enc_ctx;
 +    if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
 +        frame_number = ost->st->nb_frames;
-         if (!ost->stream_copy && enc->coded_frame)
-             q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
++        fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number,
++                ost->quality / (float)FF_QP2LAMBDA);
 +        if (enc->coded_frame && (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 = av_stream_get_end_pts(ost->st) * av_q2d(ost->st->time_base);
 +        if (ti1 < 0.01)
 +            ti1 = 0.01;
 +
 +        bitrate     = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
 +        avg_bitrate = (double)(ost->data_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)ost->data_size / 1024, ti1, bitrate, avg_bitrate);
 +        fprintf(vstats_file, "type= %c\n", enc->coded_frame ? av_get_picture_type_char(enc->coded_frame->pict_type) : 'I');
 +    }
 +}
 +
 +static void finish_output_stream(OutputStream *ost)
 +{
 +    OutputFile *of = output_files[ost->file_index];
 +    int i;
 +
 +    ost->finished = ENCODER_FINISHED | MUXER_FINISHED;
 +
 +    if (of->shortest) {
 +        for (i = 0; i < of->ctx->nb_streams; i++)
 +            output_streams[of->ost_index + i]->finished = ENCODER_FINISHED | MUXER_FINISHED;
 +    }
 +}
 +
 +/**
 + * 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(int flush)
 +{
 +    AVFrame *filtered_frame = NULL;
 +    int i;
 +
 +    /* 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];
 +        AVFilterContext *filter;
 +        AVCodecContext *enc = ost->enc_ctx;
 +        int ret = 0;
 +
 +        if (!ost->filter)
 +            continue;
 +        filter = ost->filter->filter;
 +
 +        if (!ost->filtered_frame && !(ost->filtered_frame = av_frame_alloc())) {
 +            return AVERROR(ENOMEM);
 +        }
 +        filtered_frame = ost->filtered_frame;
 +
 +        while (1) {
 +            double float_pts = AV_NOPTS_VALUE; // this is identical to filtered_frame.pts but with higher precision
 +            ret = av_buffersink_get_frame_flags(filter, filtered_frame,
 +                                               AV_BUFFERSINK_FLAG_NO_REQUEST);
 +            if (ret < 0) {
 +                if (ret != AVERROR(EAGAIN) && ret != AVERROR_EOF) {
 +                    av_log(NULL, AV_LOG_WARNING,
 +                           "Error in av_buffersink_get_frame_flags(): %s\n", av_err2str(ret));
 +                } else if (flush && ret == AVERROR_EOF) {
 +                    if (filter->inputs[0]->type == AVMEDIA_TYPE_VIDEO)
 +                        do_video_out(of->ctx, ost, NULL, AV_NOPTS_VALUE);
 +                }
 +                break;
 +            }
 +            if (ost->finished) {
 +                av_frame_unref(filtered_frame);
 +                continue;
 +            }
 +            if (filtered_frame->pts != AV_NOPTS_VALUE) {
 +                int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
 +                AVRational tb = enc->time_base;
 +                int extra_bits = av_clip(29 - av_log2(tb.den), 0, 16);
 +
 +                tb.den <<= extra_bits;
 +                float_pts =
 +                    av_rescale_q(filtered_frame->pts, filter->inputs[0]->time_base, tb) -
 +                    av_rescale_q(start_time, AV_TIME_BASE_Q, tb);
 +                float_pts /= 1 << extra_bits;
 +                // avoid exact midoints to reduce the chance of rounding differences, this can be removed in case the fps code is changed to work with integers
 +                float_pts += FFSIGN(float_pts) * 1.0 / (1<<17);
 +
 +                filtered_frame->pts =
 +                    av_rescale_q(filtered_frame->pts, filter->inputs[0]->time_base, enc->time_base) -
 +                    av_rescale_q(start_time, AV_TIME_BASE_Q, enc->time_base);
 +            }
 +            //if (ost->source_index >= 0)
 +            //    *filtered_frame= *input_streams[ost->source_index]->decoded_frame; //for me_threshold
 +
 +            switch (filter->inputs[0]->type) {
 +            case AVMEDIA_TYPE_VIDEO:
 +                if (!ost->frame_aspect_ratio.num)
 +                    enc->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
 +
 +                if (debug_ts) {
 +                    av_log(NULL, AV_LOG_INFO, "filter -> pts:%s pts_time:%s exact:%f time_base:%d/%d\n",
 +                            av_ts2str(filtered_frame->pts), av_ts2timestr(filtered_frame->pts, &enc->time_base),
 +                            float_pts,
 +                            enc->time_base.num, enc->time_base.den);
 +                }
 +
 +                do_video_out(of->ctx, ost, filtered_frame, float_pts);
 +                break;
 +            case AVMEDIA_TYPE_AUDIO:
 +                if (!(enc->codec->capabilities & CODEC_CAP_PARAM_CHANGE) &&
 +                    enc->channels != av_frame_get_channels(filtered_frame)) {
 +                    av_log(NULL, AV_LOG_ERROR,
 +                           "Audio filter graph output is not normalized and encoder does not support parameter changes\n");
 +                    break;
 +                }
 +                do_audio_out(of->ctx, ost, filtered_frame);
 +                break;
 +            default:
 +                // TODO support subtitle filters
 +                av_assert0(0);
 +            }
 +
 +            av_frame_unref(filtered_frame);
 +        }
 +    }
 +
 +    return 0;
 +}
 +
 +static void print_final_stats(int64_t total_size)
 +{
 +    uint64_t video_size = 0, audio_size = 0, extra_size = 0, other_size = 0;
 +    uint64_t subtitle_size = 0;
 +    uint64_t data_size = 0;
 +    float percent = -1.0;
 +    int i, j;
 +    int pass1_used = 1;
 +
 +    for (i = 0; i < nb_output_streams; i++) {
 +        OutputStream *ost = output_streams[i];
 +        switch (ost->enc_ctx->codec_type) {
 +            case AVMEDIA_TYPE_VIDEO: video_size += ost->data_size; break;
 +            case AVMEDIA_TYPE_AUDIO: audio_size += ost->data_size; break;
 +            case AVMEDIA_TYPE_SUBTITLE: subtitle_size += ost->data_size; break;
 +            default:                 other_size += ost->data_size; break;
 +        }
 +        extra_size += ost->enc_ctx->extradata_size;
 +        data_size  += ost->data_size;
 +        if (   (ost->enc_ctx->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))
 +            != CODEC_FLAG_PASS1)
 +            pass1_used = 0;
 +    }
 +
 +    if (data_size && total_size>0 && total_size >= data_size)
 +        percent = 100.0 * (total_size - data_size) / data_size;
 +
 +    av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB subtitle:%1.0fkB other streams:%1.0fkB global headers:%1.0fkB muxing overhead: ",
 +           video_size / 1024.0,
 +           audio_size / 1024.0,
 +           subtitle_size / 1024.0,
 +           other_size / 1024.0,
 +           extra_size / 1024.0);
 +    if (percent >= 0.0)
 +        av_log(NULL, AV_LOG_INFO, "%f%%", percent);
 +    else
 +        av_log(NULL, AV_LOG_INFO, "unknown");
 +    av_log(NULL, AV_LOG_INFO, "\n");
 +
 +    /* print verbose per-stream stats */
 +    for (i = 0; i < nb_input_files; i++) {
 +        InputFile *f = input_files[i];
 +        uint64_t total_packets = 0, total_size = 0;
 +
 +        av_log(NULL, AV_LOG_VERBOSE, "Input file #%d (%s):\n",
 +               i, f->ctx->filename);
 +
 +        for (j = 0; j < f->nb_streams; j++) {
 +            InputStream *ist = input_streams[f->ist_index + j];
 +            enum AVMediaType type = ist->dec_ctx->codec_type;
 +
 +            total_size    += ist->data_size;
 +            total_packets += ist->nb_packets;
 +
 +            av_log(NULL, AV_LOG_VERBOSE, "  Input stream #%d:%d (%s): ",
 +                   i, j, media_type_string(type));
 +            av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets read (%"PRIu64" bytes); ",
 +                   ist->nb_packets, ist->data_size);
 +
 +            if (ist->decoding_needed) {
 +                av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames decoded",
 +                       ist->frames_decoded);
 +                if (type == AVMEDIA_TYPE_AUDIO)
 +                    av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ist->samples_decoded);
 +                av_log(NULL, AV_LOG_VERBOSE, "; ");
 +            }
 +
 +            av_log(NULL, AV_LOG_VERBOSE, "\n");
 +        }
 +
 +        av_log(NULL, AV_LOG_VERBOSE, "  Total: %"PRIu64" packets (%"PRIu64" bytes) demuxed\n",
 +               total_packets, total_size);
 +    }
 +
 +    for (i = 0; i < nb_output_files; i++) {
 +        OutputFile *of = output_files[i];
 +        uint64_t total_packets = 0, total_size = 0;
 +
 +        av_log(NULL, AV_LOG_VERBOSE, "Output file #%d (%s):\n",
 +               i, of->ctx->filename);
 +
 +        for (j = 0; j < of->ctx->nb_streams; j++) {
 +            OutputStream *ost = output_streams[of->ost_index + j];
 +            enum AVMediaType type = ost->enc_ctx->codec_type;
 +
 +            total_size    += ost->data_size;
 +            total_packets += ost->packets_written;
 +
 +            av_log(NULL, AV_LOG_VERBOSE, "  Output stream #%d:%d (%s): ",
 +                   i, j, media_type_string(type));
 +            if (ost->encoding_needed) {
 +                av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames encoded",
 +                       ost->frames_encoded);
 +                if (type == AVMEDIA_TYPE_AUDIO)
 +                    av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ost->samples_encoded);
 +                av_log(NULL, AV_LOG_VERBOSE, "; ");
 +            }
 +
 +            av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets muxed (%"PRIu64" bytes); ",
 +                   ost->packets_written, ost->data_size);
 +
 +            av_log(NULL, AV_LOG_VERBOSE, "\n");
 +        }
 +
 +        av_log(NULL, AV_LOG_VERBOSE, "  Total: %"PRIu64" packets (%"PRIu64" bytes) muxed\n",
 +               total_packets, total_size);
 +    }
 +    if(video_size + data_size + audio_size + subtitle_size + extra_size == 0){
 +        av_log(NULL, AV_LOG_WARNING, "Output file is empty, nothing was encoded ");
 +        if (pass1_used) {
 +            av_log(NULL, AV_LOG_WARNING, "\n");
 +        } else {
 +            av_log(NULL, AV_LOG_WARNING, "(check -ss / -t / -frames parameters if used)\n");
 +        }
 +    }
 +}
 +
 +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);
 +
 +    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->enc_ctx;
++        if (!ost->stream_copy)
++            q = ost->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) && (enc->coded_frame || is_last_report)) {
 +                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[j] | 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 (av_stream_get_end_pts(ost->st) != AV_NOPTS_VALUE)
 +            pts = FFMAX(pts, av_rescale_q(av_stream_get_end_pts(ost->st),
 +                                          ost->st->time_base, AV_TIME_BASE_Q));
 +        if (is_last_report)
 +            nb_frames_drop += ost->last_droped;
 +    }
 +
 +    secs = FFABS(pts) / AV_TIME_BASE;
 +    us = FFABS(pts) % AV_TIME_BASE;
 +    mins = secs / 60;
 +    secs %= 60;
 +    hours = mins / 60;
 +    mins %= 60;
 +
 +    bitrate = pts && total_size >= 0 ? total_size * 8 / (pts / 1000.0) : -1;
 +
 +    if (total_size < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
 +                                 "size=N/A time=");
 +    else                snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
 +                                 "size=%8.0fkB time=", total_size / 1024.0);
 +    if (pts < 0)
 +        snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "-");
 +    snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
 +             "%02d:%02d:%02d.%02d ", hours, mins, secs,
 +             (100 * us) / AV_TIME_BASE);
 +
 +    if (bitrate < 0) {
 +        snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),"bitrate=N/A");
 +        av_bprintf(&buf_script, "bitrate=N/A\n");
 +    }else{
 +        snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),"bitrate=%6.1fkbits/s", bitrate);
 +        av_bprintf(&buf_script, "bitrate=%6.1fkbits/s\n", bitrate);
 +    }
 +
 +    if (total_size < 0) av_bprintf(&buf_script, "total_size=N/A\n");
 +    else                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) {
 +        const char end = is_last_report ? '\n' : '\r';
 +        if (print_stats==1 && AV_LOG_INFO > av_log_get_level()) {
 +            fprintf(stderr, "%s    %c", buf, end);
 +        } else
 +            av_log(NULL, AV_LOG_INFO, "%s    %c", buf, end);
 +
 +    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_closep(&progress_avio);
 +        }
 +    }
 +
 +    if (is_last_report)
 +        print_final_stats(total_size);
 +}
 +
 +static void flush_encoders(void)
 +{
 +    int i, ret;
 +
 +    for (i = 0; i < nb_output_streams; i++) {
 +        OutputStream   *ost = output_streams[i];
 +        AVCodecContext *enc = ost->enc_ctx;
 +        AVFormatContext *os = output_files[ost->file_index]->ctx;
 +        int stop_encoding = 0;
 +
 +        if (!ost->encoding_needed)
 +            continue;
 +
 +        if (enc->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
 +            continue;
 +        if (enc->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;
 +
 +            switch (enc->codec_type) {
 +            case AVMEDIA_TYPE_AUDIO:
 +                encode = avcodec_encode_audio2;
 +                desc   = "Audio";
 +                break;
 +            case AVMEDIA_TYPE_VIDEO:
 +                encode = avcodec_encode_video2;
 +                desc   = "Video";
 +                break;
 +            default:
 +                stop_encoding = 1;
 +            }
 +
 +            if (encode) {
 +                AVPacket pkt;
 +                int pkt_size;
 +                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);
 +                }
 +                if (ost->logfile && enc->stats_out) {
 +                    fprintf(ost->logfile, "%s", enc->stats_out);
 +                }
 +                if (!got_packet) {
 +                    stop_encoding = 1;
 +                    break;
 +                }
 +                if (ost->finished & MUXER_FINISHED) {
 +                    av_free_packet(&pkt);
 +                    continue;
 +                }
 +                av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base);
 +                pkt_size = pkt.size;
 +                write_frame(os, &pkt, ost);
 +                if (ost->enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO && vstats_filename) {
 +                    do_video_stats(ost, pkt_size);
 +                }
 +            }
 +
 +            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 (ost->finished)
 +        return 0;
 +
 +    if (of->start_time != AV_NOPTS_VALUE && 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];
 +    InputFile   *f = input_files [ist->file_index];
 +    int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
 +    int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
 +    int64_t ist_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ist->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 (pkt->pts == AV_NOPTS_VALUE) {
 +        if (!ost->frame_number && ist->pts < start_time &&
 +            !ost->copy_prior_start)
 +            return;
 +    } else {
 +        if (!ost->frame_number && pkt->pts < ist_tb_start_time &&
 +            !ost->copy_prior_start)
 +            return;
 +    }
 +
 +    if (of->recording_time != INT64_MAX &&
 +        ist->pts >= of->recording_time + start_time) {
 +        close_output_stream(ost);
 +        return;
 +    }
 +
 +    if (f->recording_time != INT64_MAX) {
 +        start_time = f->ctx->start_time;
 +        if (f->start_time != AV_NOPTS_VALUE)
 +            start_time += f->start_time;
 +        if (ist->pts >= f->recording_time + start_time) {
 +            close_output_stream(ost);
 +            return;
 +        }
 +    }
 +
 +    /* force the input stream PTS */
 +    if (ost->enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO)
 +        ost->sync_opts++;
 +
 +    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;
 +
 +    if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && pkt->dts != AV_NOPTS_VALUE) {
 +        int duration = av_get_audio_frame_duration(ist->dec_ctx, pkt->size);
 +        if(!duration)
 +            duration = ist->dec_ctx->frame_size;
 +        opkt.dts = opkt.pts = av_rescale_delta(ist->st->time_base, pkt->dts,
 +                                               (AVRational){1, ist->dec_ctx->sample_rate}, duration, &ist->filter_in_rescale_delta_last,
 +                                               ost->st->time_base) - 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->enc_ctx->codec_id != AV_CODEC_ID_H264
 +       && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG1VIDEO
 +       && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG2VIDEO
 +       && ost->enc_ctx->codec_id != AV_CODEC_ID_VC1
 +       ) {
 +        if (av_parser_change(ost->parser, ost->st->codec,
 +                             &opkt.data, &opkt.size,
 +                             pkt->data, pkt->size,
 +                             pkt->flags & AV_PKT_FLAG_KEY)) {
 +            opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
 +            if (!opkt.buf)
 +                exit_program(1);
 +        }
 +    } else {
 +        opkt.data = pkt->data;
 +        opkt.size = pkt->size;
 +    }
 +    av_copy_packet_side_data(&opkt, pkt);
 +
 +    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);
 +}
 +
 +int guess_input_channel_layout(InputStream *ist)
 +{
 +    AVCodecContext *dec = ist->dec_ctx;
 +
 +    if (!dec->channel_layout) {
 +        char layout_name[256];
 +
 +        if (dec->channels > ist->guess_layout_max)
 +            return 0;
 +        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, *f;
 +    AVCodecContext *avctx = ist->dec_ctx;
 +    int i, ret, err = 0, resample_changed;
 +    AVRational decoded_frame_tb;
 +
 +    if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
 +        return AVERROR(ENOMEM);
 +    if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
 +        return AVERROR(ENOMEM);
 +    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)
 +        decode_error_stat[ret<0] ++;
 +
 +    if (ret < 0 && exit_on_error)
 +        exit_program(1);
 +
 +    if (!*got_output || ret < 0)
 +        return ret;
 +
 +    ist->samples_decoded += decoded_frame->nb_samples;
 +    ist->frames_decoded++;
 +
 +#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
 +
 +    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);
 +        }
 +        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];
 +                if (configure_filtergraph(fg) < 0) {
 +                    av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
 +                    exit_program(1);
 +                }
 +            }
 +    }
 +
 +    /* 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;
 +        decoded_frame_tb   = ist->st->time_base;
 +    } else if (pkt->pts != AV_NOPTS_VALUE) {
 +        decoded_frame->pts = pkt->pts;
 +        decoded_frame_tb   = ist->st->time_base;
 +    }else {
 +        decoded_frame->pts = ist->dts;
 +        decoded_frame_tb   = AV_TIME_BASE_Q;
 +    }
 +    pkt->pts           = AV_NOPTS_VALUE;
 +    if (decoded_frame->pts != AV_NOPTS_VALUE)
 +        decoded_frame->pts = av_rescale_delta(decoded_frame_tb, decoded_frame->pts,
 +                                              (AVRational){1, avctx->sample_rate}, decoded_frame->nb_samples, &ist->filter_in_rescale_delta_last,
 +                                              (AVRational){1, avctx->sample_rate});
 +    for (i = 0; i < ist->nb_filters; i++) {
 +        if (i < ist->nb_filters - 1) {
 +            f = ist->filter_frame;
 +            err = av_frame_ref(f, decoded_frame);
 +            if (err < 0)
 +                break;
 +        } else
 +            f = decoded_frame;
 +        err = av_buffersrc_add_frame_flags(ist->filters[i]->filter, f,
 +                                     AV_BUFFERSRC_FLAG_PUSH);
 +        if (err == AVERROR_EOF)
 +            err = 0; /* ignore */
 +        if (err < 0)
 +            break;
 +    }
 +    decoded_frame->pts = AV_NOPTS_VALUE;
 +
 +    av_frame_unref(ist->filter_frame);
 +    av_frame_unref(decoded_frame);
 +    return err < 0 ? err : ret;
 +}
 +
 +static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
 +{
 +    AVFrame *decoded_frame, *f;
 +    int i, ret = 0, err = 0, resample_changed;
 +    int64_t best_effort_timestamp;
 +    AVRational *frame_sample_aspect;
 +
 +    if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
 +        return AVERROR(ENOMEM);
 +    if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
 +        return AVERROR(ENOMEM);
 +    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->dec_ctx,
 +                                decoded_frame, got_output, pkt);
 +    update_benchmark("decode_video %d.%d", ist->file_index, ist->st->index);
 +
 +    // The following line may be required in some cases where there is no parser
 +    // or the parser does not has_b_frames correctly
 +    if (ist->st->codec->has_b_frames < ist->dec_ctx->has_b_frames) {
 +        if (ist->dec_ctx->codec_id == AV_CODEC_ID_H264) {
 +            ist->st->codec->has_b_frames = ist->dec_ctx->has_b_frames;
 +        } else
 +            av_log_ask_for_sample(
 +                ist->dec_ctx,
 +                "has_b_frames is larger in decoder than demuxer %d > %d ",
 +                ist->dec_ctx->has_b_frames,
 +                ist->st->codec->has_b_frames
 +            );
 +    }
 +
 +    if (*got_output || ret<0)
 +        decode_error_stat[ret<0] ++;
 +
 +    if (ret < 0 && exit_on_error)
 +        exit_program(1);
 +
 +    if (*got_output && ret >= 0) {
 +        if (ist->dec_ctx->width  != decoded_frame->width ||
 +            ist->dec_ctx->height != decoded_frame->height ||
 +            ist->dec_ctx->pix_fmt != decoded_frame->format) {
 +            av_log(NULL, AV_LOG_DEBUG, "Frame parameters mismatch context %d,%d,%d != %d,%d,%d\n",
 +                decoded_frame->width,
 +                decoded_frame->height,
 +                decoded_frame->format,
 +                ist->dec_ctx->width,
 +                ist->dec_ctx->height,
 +                ist->dec_ctx->pix_fmt);
 +        }
 +    }
 +
 +    if (!*got_output || ret < 0)
 +        return ret;
 +
 +    if(ist->top_field_first>=0)
 +        decoded_frame->top_field_first = ist->top_field_first;
 +
 +    ist->frames_decoded++;
 +
 +    if (ist->hwaccel_retrieve_data && decoded_frame->format == ist->hwaccel_pix_fmt) {
 +        err = ist->hwaccel_retrieve_data(ist->dec_ctx, decoded_frame);
 +        if (err < 0)
 +            goto fail;
 +    }
 +    ist->hwaccel_retrieved_pix_fmt = decoded_frame->format;
 +
 +    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 time_base:%d/%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,
 +               ist->st->time_base.num, ist->st->time_base.den);
 +    }
 +
 +    pkt->size = 0;
 +
 +    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) && ist->reinit_filters &&
 +                configure_filtergraph(filtergraphs[i]) < 0) {
 +                av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
 +                exit_program(1);
 +            }
 +        }
 +    }
 +
 +    frame_sample_aspect= av_opt_ptr(avcodec_get_frame_class(), decoded_frame, "sample_aspect_ratio");
 +    for (i = 0; i < ist->nb_filters; i++) {
 +        if (!frame_sample_aspect->num)
 +            *frame_sample_aspect = ist->st->sample_aspect_ratio;
 +
 +        if (i < ist->nb_filters - 1) {
 +            f = ist->filter_frame;
 +            err = av_frame_ref(f, decoded_frame);
 +            if (err < 0)
 +                break;
 +        } else
 +            f = decoded_frame;
 +        ret = av_buffersrc_add_frame_flags(ist->filters[i]->filter, f, AV_BUFFERSRC_FLAG_PUSH);
 +        if (ret == AVERROR_EOF) {
 +            ret = 0; /* ignore */
 +        } else if (ret < 0) {
 +            av_log(NULL, AV_LOG_FATAL,
 +                   "Failed to inject frame into filter network: %s\n", av_err2str(ret));
 +            exit_program(1);
 +        }
 +    }
 +
 +fail:
 +    av_frame_unref(ist->filter_frame);
 +    av_frame_unref(decoded_frame);
 +    return err < 0 ? err : ret;
 +}
 +
 +static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
 +{
 +    AVSubtitle subtitle;
 +    int i, ret = avcodec_decode_subtitle2(ist->dec_ctx,
 +                                          &subtitle, got_output, pkt);
 +
 +    if (*got_output || ret<0)
 +        decode_error_stat[ret<0] ++;
 +
 +    if (ret < 0 && exit_on_error)
 +        exit_program(1);
 +
 +    if (ret < 0 || !*got_output) {
 +        if (!pkt->size)
 +            sub2video_flush(ist);
 +        return ret;
 +    }
 +
 +    if (ist->fix_sub_duration) {
 +        int end = 1;
 +        if (ist->prev_sub.got_output) {
 +            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->dec_ctx, AV_LOG_DEBUG,
 +                       "Subtitle duration reduced from %d to %d%s\n",
 +                       ist->prev_sub.subtitle.end_display_time, end,
 +                       end <= 0 ? ", dropping it" : "");
 +                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);
 +        if (end <= 0)
 +            goto out;
 +    }
 +
 +    if (!*got_output)
 +        return ret;
 +
 +    sub2video_update(ist, &subtitle);
 +
 +    if (!subtitle.num_rects)
 +        goto out;
 +
 +    ist->frames_decoded++;
 +
 +    for (i = 0; i < nb_output_streams; i++) {
 +        OutputStream *ost = output_streams[i];
 +
 +        if (!check_output_constraints(ist, ost) || !ost->encoding_needed
 +            || ost->enc->type != AVMEDIA_TYPE_SUBTITLE)
 +            continue;
 +
 +        do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle);
 +    }
 +
 +out:
 +    avsubtitle_free(&subtitle);
 +    return ret;
 +}
 +
 +static int send_filter_eof(InputStream *ist)
 +{
 +    int i, ret;
 +    for (i = 0; i < ist->nb_filters; i++) {
 +#if 1
 +        ret = av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
 +#else
 +        ret = av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
 +#endif
 +        if (ret < 0)
 +            return ret;
 +    }
 +    return 0;
 +}
 +
 +/* pkt = NULL means EOF (needed to flush decoder buffers) */
 +static int process_input_packet(InputStream *ist, const AVPacket *pkt)
 +{
 +    int ret = 0, i;
 +    int got_output = 0;
 +
 +    AVPacket avpkt;
 +    if (!ist->saw_first_ts) {
 +        ist->dts = ist->st->avg_frame_rate.num ? - ist->dec_ctx->has_b_frames * AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0;
 +        ist->pts = 0;
 +        if (pkt && 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) {
 +        /* 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->dec_ctx->codec_type != AVMEDIA_TYPE_VIDEO || !ist->decoding_needed)
 +            ist->next_pts = ist->pts = ist->dts;
 +    }
 +
 +    // 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 &&
 +            !(ist->dec->capabilities & CODEC_CAP_SUBFRAMES)) {
 +            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->dec_ctx->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->dec_ctx->framerate.num != 0 && ist->dec_ctx->framerate.den != 0) {
 +                int ticks= av_stream_get_parser(ist->st) ? av_stream_get_parser(ist->st)->repeat_pict+1 : ist->dec_ctx->ticks_per_frame;
 +                duration = ((int64_t)AV_TIME_BASE *
 +                                ist->dec_ctx->framerate.den * ticks) /
 +                                ist->dec_ctx->framerate.num / ist->dec_ctx->ticks_per_frame;
 +            } 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) {
 +            av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d: %s\n",
 +                   ist->file_index, ist->st->index, av_err2str(ret));
 +            if (exit_on_error)
 +                exit_program(1);
 +            break;
 +        }
 +
 +        avpkt.dts=
 +        avpkt.pts= AV_NOPTS_VALUE;
 +
 +        // touch data and size only if not EOF
 +        if (pkt) {
 +            if(ist->dec_ctx->codec_type != AVMEDIA_TYPE_AUDIO)
 +                ret = avpkt.size;
 +            avpkt.data += ret;
 +            avpkt.size -= ret;
 +        }
 +        if (!got_output) {
 +            continue;
 +        }
 +        if (got_output && !pkt)
 +            break;
 +    }
 +
 +    /* after flushing, send an EOF on all the filter inputs attached to the stream */
 +    if (!pkt && ist->decoding_needed && !got_output) {
 +        int ret = send_filter_eof(ist);
 +        if (ret < 0) {
 +            av_log(NULL, AV_LOG_FATAL, "Error marking filters as finished\n");
 +            exit_program(1);
 +        }
 +    }
 +
 +    /* handle stream copy */
 +    if (!ist->decoding_needed) {
 +        ist->dts = ist->next_dts;
 +        switch (ist->dec_ctx->codec_type) {
 +        case AVMEDIA_TYPE_AUDIO:
 +            ist->next_dts += ((int64_t)AV_TIME_BASE * ist->dec_ctx->frame_size) /
 +                             ist->dec_ctx->sample_rate;
 +            break;
 +        case AVMEDIA_TYPE_VIDEO:
 +            if (ist->framerate.num) {
 +                // TODO: Remove work-around for c99-to-c89 issue 7
 +                AVRational time_base_q = AV_TIME_BASE_Q;
 +                int64_t next_dts = av_rescale_q(ist->next_dts, time_base_q, av_inv_q(ist->framerate));
 +                ist->next_dts = av_rescale_q(next_dts + 1, av_inv_q(ist->framerate), time_base_q);
 +            } else if (pkt->duration) {
 +                ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
 +            } else if(ist->dec_ctx->framerate.num != 0) {
 +                int ticks= av_stream_get_parser(ist->st) ? av_stream_get_parser(ist->st)->repeat_pict + 1 : ist->dec_ctx->ticks_per_frame;
 +                ist->next_dts += ((int64_t)AV_TIME_BASE *
 +                                  ist->dec_ctx->framerate.den * ticks) /
 +                                  ist->dec_ctx->framerate.num / ist->dec_ctx->ticks_per_frame;
 +            }
 +            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 got_output;
 +}
 +
 +static void print_sdp(void)
 +{
 +    char sdp[16384];
 +    int i;
 +    int j;
 +    AVIOContext *sdp_pb;
 +    AVFormatContext **avc = av_malloc_array(nb_output_files, sizeof(*avc));
 +
 +    if (!avc)
 +        exit_program(1);
 +    for (i = 0, j = 0; i < nb_output_files; i++) {
 +        if (!strcmp(output_files[i]->ctx->oformat->name, "rtp")) {
 +            avc[j] = output_files[i]->ctx;
 +            j++;
 +        }
 +    }
 +
 +    av_sdp_create(avc, j, sdp, sizeof(sdp));
 +
 +    if (!sdp_filename) {
 +        printf("SDP:\n%s\n", sdp);
 +        fflush(stdout);
 +    } else {
 +        if (avio_open2(&sdp_pb, sdp_filename, AVIO_FLAG_WRITE, &int_cb, NULL) < 0) {
 +            av_log(NULL, AV_LOG_ERROR, "Failed to open sdp file '%s'\n", sdp_filename);
 +        } else {
 +            avio_printf(sdp_pb, "SDP:\n%s", sdp);
 +            avio_closep(&sdp_pb);
 +            av_freep(&sdp_filename);
 +        }
 +    }
 +
 +    av_freep(&avc);
 +}
 +
 +static const HWAccel *get_hwaccel(enum AVPixelFormat pix_fmt)
 +{
 +    int i;
 +    for (i = 0; hwaccels[i].name; i++)
 +        if (hwaccels[i].pix_fmt == pix_fmt)
 +            return &hwaccels[i];
 +    return NULL;
 +}
 +
 +static enum AVPixelFormat get_format(AVCodecContext *s, const enum AVPixelFormat *pix_fmts)
 +{
 +    InputStream *ist = s->opaque;
 +    const enum AVPixelFormat *p;
 +    int ret;
 +
 +    for (p = pix_fmts; *p != -1; p++) {
 +        const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(*p);
 +        const HWAccel *hwaccel;
 +
 +        if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
 +            break;
 +
 +        hwaccel = get_hwaccel(*p);
 +        if (!hwaccel ||
 +            (ist->active_hwaccel_id && ist->active_hwaccel_id != hwaccel->id) ||
 +            (ist->hwaccel_id != HWACCEL_AUTO && ist->hwaccel_id != hwaccel->id))
 +            continue;
 +
 +        ret = hwaccel->init(s);
 +        if (ret < 0) {
 +            if (ist->hwaccel_id == hwaccel->id) {
 +                av_log(NULL, AV_LOG_FATAL,
 +                       "%s hwaccel requested for input stream #%d:%d, "
 +                       "but cannot be initialized.\n", hwaccel->name,
 +                       ist->file_index, ist->st->index);
 +                return AV_PIX_FMT_NONE;
 +            }
 +            continue;
 +        }
 +        ist->active_hwaccel_id = hwaccel->id;
 +        ist->hwaccel_pix_fmt   = *p;
 +        break;
 +    }
 +
 +    return *p;
 +}
 +
 +static int get_buffer(AVCodecContext *s, AVFrame *frame, int flags)
 +{
 +    InputStream *ist = s->opaque;
 +
 +    if (ist->hwaccel_get_buffer && frame->format == ist->hwaccel_pix_fmt)
 +        return ist->hwaccel_get_buffer(s, frame, flags);
 +
 +    return avcodec_default_get_buffer2(s, frame, flags);
 +}
 +
 +static int init_input_stream(int ist_index, char *error, int error_len)
 +{
 +    int ret;
 +    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->dec_ctx->codec_id), ist->file_index, ist->st->index);
 +            return AVERROR(EINVAL);
 +        }
 +
 +        ist->dec_ctx->opaque                = ist;
 +        ist->dec_ctx->get_format            = get_format;
 +        ist->dec_ctx->get_buffer2           = get_buffer;
 +        ist->dec_ctx->thread_safe_callbacks = 1;
 +
 +        av_opt_set_int(ist->dec_ctx, "refcounted_frames", 1, 0);
 +        if (ist->dec_ctx->codec_id == AV_CODEC_ID_DVB_SUBTITLE &&
 +           (ist->decoding_needed & DECODING_FOR_OST)) {
 +            av_dict_set(&ist->decoder_opts, "compute_edt", "1", AV_DICT_DONT_OVERWRITE);
 +            if (ist->decoding_needed & DECODING_FOR_FILTER)
 +                av_log(NULL, AV_LOG_WARNING, "Warning using DVB subtitles for filtering and output at the same time is not fully supported, also see -compute_edt [0|1]\n");
 +        }
 +
 +        if (!av_dict_get(ist->decoder_opts, "threads", NULL, 0))
 +            av_dict_set(&ist->decoder_opts, "threads", "auto", 0);
 +        if ((ret = avcodec_open2(ist->dec_ctx, codec, &ist->decoder_opts)) < 0) {
 +            if (ret == AVERROR_EXPERIMENTAL)
 +                abort_codec_experimental(codec, 0);
 +
 +            snprintf(error, error_len,
 +                     "Error while opening decoder for input stream "
 +                     "#%d:%d : %s",
 +                     ist->file_index, ist->st->index, av_err2str(ret));
 +            return ret;
 +        }
 +        assert_avoptions(ist->decoder_opts);
 +    }
 +
 +    ist->next_pts = AV_NOPTS_VALUE;
 +    ist->next_dts = AV_NOPTS_VALUE;
 +
 +    return 0;
 +}
 +
 +static InputStream *get_input_stream(OutputStream *ost)
 +{
 +    if (ost->source_index >= 0)
 +        return input_streams[ost->source_index];
 +    return NULL;
 +}
 +
 +static int compare_int64(const void *a, const void *b)
 +{
 +    int64_t va = *(int64_t *)a, vb = *(int64_t *)b;
 +    return va < vb ? -1 : va > vb ? +1 : 0;
 +}
 +
 +static int init_output_stream(OutputStream *ost, char *error, int error_len)
 +{
 +    int ret = 0;
 +
 +    if (ost->encoding_needed) {
 +        AVCodec      *codec = ost->enc;
 +        AVCodecContext *dec = NULL;
 +        InputStream *ist;
 +
 +        if ((ist = get_input_stream(ost)))
 +            dec = ist->dec_ctx;
 +        if (dec && dec->subtitle_header) {
 +            /* ASS code assumes this buffer is null terminated so add extra byte. */
 +            ost->enc_ctx->subtitle_header = av_mallocz(dec->subtitle_header_size + 1);
 +            if (!ost->enc_ctx->subtitle_header)
 +                return AVERROR(ENOMEM);
 +            memcpy(ost->enc_ctx->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
 +            ost->enc_ctx->subtitle_header_size = dec->subtitle_header_size;
 +        }
 +        if (!av_dict_get(ost->encoder_opts, "threads", NULL, 0))
 +            av_dict_set(&ost->encoder_opts, "threads", "auto", 0);
 +        av_dict_set(&ost->encoder_opts, "side_data_only_packets", "1", 0);
 +
 +        if ((ret = avcodec_open2(ost->enc_ctx, codec, &ost->encoder_opts)) < 0) {
 +            if (ret == AVERROR_EXPERIMENTAL)
 +                abort_codec_experimental(codec, 1);
 +            snprintf(error, error_len,
 +                     "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);
 +            return ret;
 +        }
 +        if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
 +            !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
 +            av_buffersink_set_frame_size(ost->filter->filter,
 +                                            ost->enc_ctx->frame_size);
 +        assert_avoptions(ost->encoder_opts);
 +        if (ost->enc_ctx->bit_rate && ost->enc_ctx->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");
 +
 +        ret = avcodec_copy_context(ost->st->codec, ost->enc_ctx);
 +        if (ret < 0) {
 +            av_log(NULL, AV_LOG_FATAL,
 +                   "Error initializing the output stream codec context.\n");
 +            exit_program(1);
 +        }
 +
 +        // copy timebase while removing common factors
 +        ost->st->time_base = av_add_q(ost->enc_ctx->time_base, (AVRational){0, 1});
 +        ost->st->codec->codec= ost->enc_ctx->codec;
 +    } else {
 +        ret = av_opt_set_dict(ost->enc_ctx, &ost->encoder_opts);
 +        if (ret < 0) {
 +           av_log(NULL, AV_LOG_FATAL,
 +                  "Error setting up codec context options.\n");
 +           return ret;
 +        }
 +        // copy timebase while removing common factors
 +        ost->st->time_base = av_add_q(ost->st->codec->time_base, (AVRational){0, 1});
 +    }
 +
 +    return ret;
 +}
 +
 +static void parse_forced_key_frames(char *kf, OutputStream *ost,
 +                                    AVCodecContext *avctx)
 +{
 +    char *p;
 +    int n = 1, i, size, index = 0;
 +    int64_t t, *pts;
 +
 +    for (p = kf; *p; p++)
 +        if (*p == ',')
 +            n++;
 +    size = n;
 +    pts = av_malloc_array(size, sizeof(*pts));
 +    if (!pts) {
 +        av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
 +        exit_program(1);
 +    }
 +
 +    p = kf;
 +    for (i = 0; i < n; i++) {
 +        char *next = strchr(p, ',');
 +
 +        if (next)
 +            *next++ = 0;
 +
 +        if (!memcmp(p, "chapters", 8)) {
 +
 +            AVFormatContext *avf = output_files[ost->file_index]->ctx;
 +            int j;
 +
 +            if (avf->nb_chapters > INT_MAX - size ||
 +                !(pts = av_realloc_f(pts, size += avf->nb_chapters - 1,
 +                                     sizeof(*pts)))) {
 +                av_log(NULL, AV_LOG_FATAL,
 +                       "Could not allocate forced key frames array.\n");
 +                exit_program(1);
 +            }
 +            t = p[8] ? parse_time_or_die("force_key_frames", p + 8, 1) : 0;
 +            t = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
 +
 +            for (j = 0; j < avf->nb_chapters; j++) {
 +                AVChapter *c = avf->chapters[j];
 +                av_assert1(index < size);
 +                pts[index++] = av_rescale_q(c->start, c->time_base,
 +                                            avctx->time_base) + t;
 +            }
 +
 +        } else {
 +
 +            t = parse_time_or_die("force_key_frames", p, 1);
 +            av_assert1(index < size);
 +            pts[index++] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
 +
 +        }
 +
 +        p = next;
 +    }
 +
 +    av_assert0(index == size);
 +    qsort(pts, size, sizeof(*pts), compare_int64);
 +    ost->forced_kf_count = size;
 +    ost->forced_kf_pts   = pts;
 +}
 +
 +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 void set_encoder_id(OutputFile *of, OutputStream *ost)
 +{
 +    AVDictionaryEntry *e;
 +
 +    uint8_t *encoder_string;
 +    int encoder_string_len;
 +    int format_flags = 0;
 +    int codec_flags = 0;
 +
 +    if (av_dict_get(ost->st->metadata, "encoder",  NULL, 0))
 +        return;
 +
 +    e = av_dict_get(of->opts, "fflags", NULL, 0);
 +    if (e) {
 +        const AVOption *o = av_opt_find(of->ctx, "fflags", NULL, 0, 0);
 +        if (!o)
 +            return;
 +        av_opt_eval_flags(of->ctx, o, e->value, &format_flags);
 +    }
 +    e = av_dict_get(ost->encoder_opts, "flags", NULL, 0);
 +    if (e) {
 +        const AVOption *o = av_opt_find(ost->enc_ctx, "flags", NULL, 0, 0);
 +        if (!o)
 +            return;
 +        av_opt_eval_flags(ost->enc_ctx, o, e->value, &codec_flags);
 +    }
 +
 +    encoder_string_len = sizeof(LIBAVCODEC_IDENT) + strlen(ost->enc->name) + 2;
 +    encoder_string     = av_mallocz(encoder_string_len);
 +    if (!encoder_string)
 +        exit_program(1);
 +
 +    if (!(format_flags & AVFMT_FLAG_BITEXACT) && !(codec_flags & CODEC_FLAG_BITEXACT))
 +        av_strlcpy(encoder_string, LIBAVCODEC_IDENT " ", encoder_string_len);
 +    else
 +        av_strlcpy(encoder_string, "Lavc ", encoder_string_len);
 +    av_strlcat(encoder_string, ost->enc->name, encoder_string_len);
 +    av_dict_set(&ost->st->metadata, "encoder",  encoder_string,
 +                AV_DICT_DONT_STRDUP_VAL | AV_DICT_DONT_OVERWRITE);
 +}
 +
 +static int transcode_init(void)
 +{
 +    int ret = 0, i, j, k;
 +    AVFormatContext *oc;
 +    OutputStream *ost;
 +    InputStream *ist;
 +    char error[1024] = {0};
 +    int want_sdp = 1;
 +
 +    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->ost || ofilter->ost->source_index >= 0)
 +                continue;
 +            if (fg->nb_inputs != 1)
 +                continue;
 +            for (k = nb_input_streams-1; k >= 0 ; k--)
 +                if (fg->inputs[0]->ist == input_streams[k])
 +                    break;
 +            ofilter->ost->source_index = k;
 +        }
 +    }
 +
 +    /* 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_relative();
 +    }
 +
 +    /* for each output stream, we compute the right encoding parameters */
 +    for (i = 0; i < nb_output_streams; i++) {
 +        AVCodecContext *enc_ctx;
 +        AVCodecContext *dec_ctx = NULL;
 +        ost = output_streams[i];
 +        oc  = output_files[ost->file_index]->ctx;
 +        ist = get_input_stream(ost);
 +
 +        if (ost->attachment_filename)
 +            continue;
 +
 +        enc_ctx = ost->stream_copy ? ost->st->codec : ost->enc_ctx;
 +
 +        if (ist) {
 +            dec_ctx = ist->dec_ctx;
 +
 +            ost->st->disposition          = ist->st->disposition;
 +            enc_ctx->bits_per_raw_sample    = dec_ctx->bits_per_raw_sample;
 +            enc_ctx->chroma_sample_location = dec_ctx->chroma_sample_location;
 +        } else {
 +            for (j=0; j<oc->nb_streams; j++) {
 +                AVStream *st = oc->streams[j];
 +                if (st != ost->st && st->codec->codec_type == enc_ctx->codec_type)
 +                    break;
 +            }
 +            if (j == oc->nb_streams)
 +                if (enc_ctx->codec_type == AVMEDIA_TYPE_AUDIO || enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO)
 +                    ost->st->disposition = AV_DISPOSITION_DEFAULT;
 +        }
 +
 +        if (ost->stream_copy) {
 +            AVRational sar;
 +            uint64_t extra_size;
 +
 +            av_assert0(ist && !ost->filter);
 +
 +            extra_size = (uint64_t)dec_ctx->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 */
 +            enc_ctx->codec_id   = dec_ctx->codec_id;
 +            enc_ctx->codec_type = dec_ctx->codec_type;
 +
 +            if (!enc_ctx->codec_tag) {
 +                unsigned int codec_tag;
 +                if (!oc->oformat->codec_tag ||
 +                     av_codec_get_id (oc->oformat->codec_tag, dec_ctx->codec_tag) == enc_ctx->codec_id ||
 +                     !av_codec_get_tag2(oc->oformat->codec_tag, dec_ctx->codec_id, &codec_tag))
 +                    enc_ctx->codec_tag = dec_ctx->codec_tag;
 +            }
 +
 +            enc_ctx->bit_rate       = dec_ctx->bit_rate;
 +            enc_ctx->rc_max_rate    = dec_ctx->rc_max_rate;
 +            enc_ctx->rc_buffer_size = dec_ctx->rc_buffer_size;
 +            enc_ctx->field_order    = dec_ctx->field_order;
 +            if (dec_ctx->extradata_size) {
 +                enc_ctx->extradata      = av_mallocz(extra_size);
 +                if (!enc_ctx->extradata) {
 +                    return AVERROR(ENOMEM);
 +                }
 +                memcpy(enc_ctx->extradata, dec_ctx->extradata, dec_ctx->extradata_size);
 +            }
 +            enc_ctx->extradata_size= dec_ctx->extradata_size;
 +            enc_ctx->bits_per_coded_sample  = dec_ctx->bits_per_coded_sample;
 +
 +            enc_ctx->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(dec_ctx->time_base)
 +                               && av_q2d(ist->st->time_base) < 1.0/500 && av_q2d(dec_ctx->time_base) < 1.0/500
 +                     || copy_tb==2){
 +                    enc_ctx->time_base.num = ist->st->r_frame_rate.den;
 +                    enc_ctx->time_base.den = 2*ist->st->r_frame_rate.num;
 +                    enc_ctx->ticks_per_frame = 2;
 +                } else if (   copy_tb<0 && av_q2d(dec_ctx->time_base)*dec_ctx->ticks_per_frame > 2*av_q2d(ist->st->time_base)
 +                                 && av_q2d(ist->st->time_base) < 1.0/500
 +                    || copy_tb==0){
 +                    enc_ctx->time_base = dec_ctx->time_base;
 +                    enc_ctx->time_base.num *= dec_ctx->ticks_per_frame;
 +                    enc_ctx->time_base.den *= 2;
 +                    enc_ctx->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 && dec_ctx->time_base.den
 +                                && av_q2d(dec_ctx->time_base)*dec_ctx->ticks_per_frame > av_q2d(ist->st->time_base)
 +                                && av_q2d(ist->st->time_base) < 1.0/500
 +                   || copy_tb==0){
 +                    enc_ctx->time_base = dec_ctx->time_base;
 +                    enc_ctx->time_base.num *= dec_ctx->ticks_per_frame;
 +                }
 +            }
 +            if (   enc_ctx->codec_tag == AV_RL32("tmcd")
 +                && dec_ctx->time_base.num < dec_ctx->time_base.den
 +                && dec_ctx->time_base.num > 0
 +                && 121LL*dec_ctx->time_base.num > dec_ctx->time_base.den) {
 +                enc_ctx->time_base = dec_ctx->time_base;
 +            }
 +
 +            if (ist && !ost->frame_rate.num)
 +                ost->frame_rate = ist->framerate;
 +            if(ost->frame_rate.num)
 +                enc_ctx->time_base = av_inv_q(ost->frame_rate);
 +
 +            av_reduce(&enc_ctx->time_base.num, &enc_ctx->time_base.den,
 +                        enc_ctx->time_base.num, enc_ctx->time_base.den, INT_MAX);
 +
 +            if (ist->st->nb_side_data) {
 +                ost->st->side_data = av_realloc_array(NULL, ist->st->nb_side_data,
 +                                                      sizeof(*ist->st->side_data));
 +                if (!ost->st->side_data)
 +                    return AVERROR(ENOMEM);
 +
 +                ost->st->nb_side_data = 0;
 +                for (j = 0; j < ist->st->nb_side_data; j++) {
 +                    const AVPacketSideData *sd_src = &ist->st->side_data[j];
 +                    AVPacketSideData *sd_dst = &ost->st->side_data[ost->st->nb_side_data];
 +
 +                    if (ost->rotate_overridden && sd_src->type == AV_PKT_DATA_DISPLAYMATRIX)
 +                        continue;
 +
 +                    sd_dst->data = av_malloc(sd_src->size);
 +                    if (!sd_dst->data)
 +                        return AVERROR(ENOMEM);
 +                    memcpy(sd_dst->data, sd_src->data, sd_src->size);
 +                    sd_dst->size = sd_src->size;
 +                    sd_dst->type = sd_src->type;
 +                    ost->st->nb_side_data++;
 +                }
 +            }
 +
 +            ost->parser = av_parser_init(enc_ctx->codec_id);
 +
 +            switch (enc_ctx->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);
 +                }
 +                enc_ctx->channel_layout     = dec_ctx->channel_layout;
 +                enc_ctx->sample_rate        = dec_ctx->sample_rate;
 +                enc_ctx->channels           = dec_ctx->channels;
 +                enc_ctx->frame_size         = dec_ctx->frame_size;
 +                enc_ctx->audio_service_type = dec_ctx->audio_service_type;
 +                enc_ctx->block_align        = dec_ctx->block_align;
 +                enc_ctx->initial_padding    = dec_ctx->delay;
 +#if FF_API_AUDIOENC_DELAY
 +                enc_ctx->delay              = dec_ctx->delay;
 +#endif
 +                if((enc_ctx->block_align == 1 || enc_ctx->block_align == 1152 || enc_ctx->block_align == 576) && enc_ctx->codec_id == AV_CODEC_ID_MP3)
 +                    enc_ctx->block_align= 0;
 +                if(enc_ctx->codec_id == AV_CODEC_ID_AC3)
 +                    enc_ctx->block_align= 0;
 +                break;
 +            case AVMEDIA_TYPE_VIDEO:
 +                enc_ctx->pix_fmt            = dec_ctx->pix_fmt;
 +                enc_ctx->width              = dec_ctx->width;
 +                enc_ctx->height             = dec_ctx->height;
 +                enc_ctx->has_b_frames       = dec_ctx->has_b_frames;
 +                if (ost->frame_aspect_ratio.num) { // overridden by the -aspect cli option
 +                    sar =
 +                        av_mul_q(ost->frame_aspect_ratio,
 +                                 (AVRational){ enc_ctx->height, enc_ctx->width });
 +                    av_log(NULL, AV_LOG_WARNING, "Overriding aspect ratio "
 +                           "with stream copy may produce invalid files\n");
 +                }
 +                else if (ist->st->sample_aspect_ratio.num)
 +                    sar = ist->st->sample_aspect_ratio;
 +                else
 +                    sar = dec_ctx->sample_aspect_ratio;
 +                ost->st->sample_aspect_ratio = enc_ctx->sample_aspect_ratio = sar;
 +                ost->st->avg_frame_rate = ist->st->avg_frame_rate;
 +                ost->st->r_frame_rate = ist->st->r_frame_rate;
 +                break;
 +            case AVMEDIA_TYPE_SUBTITLE:
 +                enc_ctx->width  = dec_ctx->width;
 +                enc_ctx->height = dec_ctx->height;
 +                break;
 +            case AVMEDIA_TYPE_UNKNOWN:
 +            case AVMEDIA_TYPE_DATA:
 +            case AVMEDIA_TYPE_ATTACHMENT:
 +                break;
 +            default:
 +                abort();
 +            }
 +        } else {
 +            if (!ost->enc)
 +                ost->enc = avcodec_find_encoder(enc_ctx->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;
 +            }
 +
 +            set_encoder_id(output_files[ost->file_index], ost);
 +
 +            if (!ost->filter &&
 +                (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
 +                 enc_ctx->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_program(1);
 +                    }
 +            }
 +
 +            if (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO) {
 +                if (!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;
 +                if (ist && !ost->frame_rate.num) {
 +                    ost->frame_rate = (AVRational){25, 1};
 +                    av_log(NULL, AV_LOG_WARNING,
 +                           "No information "
 +                           "about the input framerate is available. Falling "
 +                           "back to a default value of 25fps for output stream #%d:%d. Use the -r option "
 +                           "if you want a different framerate.\n",
 +                           ost->file_index, ost->index);
 +                }
 +//                    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];
 +                }
 +                // reduce frame rate for mpeg4 to be within the spec limits
 +                if (enc_ctx->codec_id == AV_CODEC_ID_MPEG4) {
 +                    av_reduce(&ost->frame_rate.num, &ost->frame_rate.den,
 +                              ost->frame_rate.num, ost->frame_rate.den, 65535);
 +                }
 +            }
 +
 +            switch (enc_ctx->codec_type) {
 +            case AVMEDIA_TYPE_AUDIO:
 +                enc_ctx->sample_fmt     = ost->filter->filter->inputs[0]->format;
 +                enc_ctx->sample_rate    = ost->filter->filter->inputs[0]->sample_rate;
 +                enc_ctx->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
 +                enc_ctx->channels       = avfilter_link_get_channels(ost->filter->filter->inputs[0]);
 +                enc_ctx->time_base      = (AVRational){ 1, enc_ctx->sample_rate };
 +                break;
 +            case AVMEDIA_TYPE_VIDEO:
 +                enc_ctx->time_base = av_inv_q(ost->frame_rate);
 +                if (!(enc_ctx->time_base.num && enc_ctx->time_base.den))
 +                    enc_ctx->time_base = ost->filter->filter->inputs[0]->time_base;
 +                if (   av_q2d(enc_ctx->time_base) < 0.001 && video_sync_method != VSYNC_PASSTHROUGH
 +                   && (video_sync_method == VSYNC_CFR || video_sync_method == VSYNC_VSCFR || (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,
 +                                                         enc_ctx->time_base);
 +
 +                enc_ctx->width  = ost->filter->filter->inputs[0]->w;
 +                enc_ctx->height = ost->filter->filter->inputs[0]->h;
 +                enc_ctx->sample_aspect_ratio = ost->st->sample_aspect_ratio =
 +                    ost->frame_aspect_ratio.num ? // overridden by the -aspect cli option
 +                    av_mul_q(ost->frame_aspect_ratio, (AVRational){ enc_ctx->height, enc_ctx->width }) :
 +                    ost->filter->filter->inputs[0]->sample_aspect_ratio;
 +                if (!strncmp(ost->enc->name, "libx264", 7) &&
 +                    enc_ctx->pix_fmt == AV_PIX_FMT_NONE &&
 +                    ost->filter->filter->inputs[0]->format != AV_PIX_FMT_YUV420P)
 +                    av_log(NULL, AV_LOG_WARNING,
 +                           "No pixel format specified, %s for H.264 encoding chosen.\n"
 +                           "Use -pix_fmt yuv420p for compatibility with outdated media players.\n",
 +                           av_get_pix_fmt_name(ost->filter->filter->inputs[0]->format));
 +                if (!strncmp(ost->enc->name, "mpeg2video", 10) &&
 +                    enc_ctx->pix_fmt == AV_PIX_FMT_NONE &&
 +                    ost->filter->filter->inputs[0]->format != AV_PIX_FMT_YUV420P)
 +                    av_log(NULL, AV_LOG_WARNING,
 +                           "No pixel format specified, %s for MPEG-2 encoding chosen.\n"
 +                           "Use -pix_fmt yuv420p for compatibility with outdated media players.\n",
 +                           av_get_pix_fmt_name(ost->filter->filter->inputs[0]->format));
 +                enc_ctx->pix_fmt = ost->filter->filter->inputs[0]->format;
 +
 +                ost->st->avg_frame_rate = ost->frame_rate;
 +
 +                if (!dec_ctx ||
 +                    enc_ctx->width   != dec_ctx->width  ||
 +                    enc_ctx->height  != dec_ctx->height ||
 +                    enc_ctx->pix_fmt != dec_ctx->pix_fmt) {
 +                    enc_ctx->bits_per_raw_sample = frame_bits_per_raw_sample;
 +                }
 +
 +                if (ost->forced_keyframes) {
 +                    if (!strncmp(ost->forced_keyframes, "expr:", 5)) {
 +                        ret = av_expr_parse(&ost->forced_keyframes_pexpr, ost->forced_keyframes+5,
 +                                            forced_keyframes_const_names, NULL, NULL, NULL, NULL, 0, NULL);
 +                        if (ret < 0) {
 +                            av_log(NULL, AV_LOG_ERROR,
 +                                   "Invalid force_key_frames expression '%s'\n", ost->forced_keyframes+5);
 +                            return ret;
 +                        }
 +                        ost->forced_keyframes_expr_const_values[FKF_N] = 0;
 +                        ost->forced_keyframes_expr_const_values[FKF_N_FORCED] = 0;
 +                        ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N] = NAN;
 +                        ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T] = NAN;
 +
 +                        // Don't parse the 'forced_keyframes' in case of 'keep-source-keyframes',
 +                        // parse it only for static kf timings
 +                    } else if(strncmp(ost->forced_keyframes, "source", 6)) {
 +                        parse_forced_key_frames(ost->forced_keyframes, ost, ost->enc_ctx);
 +                    }
 +                }
 +                break;
 +            case AVMEDIA_TYPE_SUBTITLE:
 +                enc_ctx->time_base = (AVRational){1, 1000};
 +                if (!enc_ctx->width) {
 +                    enc_ctx->width     = input_streams[ost->source_index]->st->codec->width;
 +                    enc_ctx->height    = input_streams[ost->source_index]->st->codec->height;
 +                }
 +                break;
 +            case AVMEDIA_TYPE_DATA:
 +                break;
 +            default:
 +                abort();
 +                break;
 +            }
 +        }
 +
 +        if (ost->disposition) {
 +            static const AVOption opts[] = {
 +                { "disposition"         , NULL, 0, AV_OPT_TYPE_FLAGS, { .i64 = 0 }, INT64_MIN, INT64_MAX, .unit = "flags" },
 +                { "default"             , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_DEFAULT           },    .unit = "flags" },
 +                { "dub"                 , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_DUB               },    .unit = "flags" },
 +                { "original"            , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_ORIGINAL          },    .unit = "flags" },
 +                { "comment"             , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_COMMENT           },    .unit = "flags" },
 +                { "lyrics"              , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_LYRICS            },    .unit = "flags" },
 +                { "karaoke"             , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_KARAOKE           },    .unit = "flags" },
 +                { "forced"              , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_FORCED            },    .unit = "flags" },
 +                { "hearing_impaired"    , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_HEARING_IMPAIRED  },    .unit = "flags" },
 +                { "visual_impaired"     , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_VISUAL_IMPAIRED   },    .unit = "flags" },
 +                { "clean_effects"       , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_CLEAN_EFFECTS     },    .unit = "flags" },
 +                { "captions"            , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_CAPTIONS          },    .unit = "flags" },
 +                { "descriptions"        , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_DESCRIPTIONS      },    .unit = "flags" },
 +                { "metadata"            , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_METADATA          },    .unit = "flags" },
 +                { NULL },
 +            };
 +            static const AVClass class = {
 +                .class_name = "",
 +                .item_name  = av_default_item_name,
 +                .option     = opts,
 +                .version    = LIBAVUTIL_VERSION_INT,
 +            };
 +            const AVClass *pclass = &class;
 +
 +            ret = av_opt_eval_flags(&pclass, &opts[0], ost->disposition, &ost->st->disposition);
 +            if (ret < 0)
 +                goto dump_format;
 +        }
 +    }
 +
 +    /* open each encoder */
 +    for (i = 0; i < nb_output_streams; i++) {
 +        ret = init_output_stream(output_streams[i], error, sizeof(error));
 +        if (ret < 0)
 +            goto dump_format;
 +    }
 +
 +    /* init input streams */
 +    for (i = 0; i < nb_input_streams; i++)
 +        if ((ret = init_input_stream(i, error, sizeof(error))) < 0) {
 +            for (i = 0; i < nb_output_streams; i++) {
 +                ost = output_streams[i];
 +                avcodec_close(ost->enc_ctx);
 +            }
 +            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) {
 +            snprintf(error, sizeof(error),
 +                     "Could not write header for output file #%d "
 +                     "(incorrect codec parameters ?): %s",
 +                     i, av_err2str(ret));
 +            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 {
 +            const AVCodec *in_codec    = input_streams[ost->source_index]->dec;
 +            const AVCodec *out_codec   = ost->enc;
 +            const char *decoder_name   = "?";
 +            const char *in_codec_name  = "?";
 +            const char *encoder_name   = "?";
 +            const char *out_codec_name = "?";
 +            const AVCodecDescriptor *desc;
 +
 +            if (in_codec) {
 +                decoder_name  = in_codec->name;
 +                desc = avcodec_descriptor_get(in_codec->id);
 +                if (desc)
 +                    in_codec_name = desc->name;
 +                if (!strcmp(decoder_name, in_codec_name))
 +                    decoder_name = "native";
 +            }
 +
 +            if (out_codec) {
 +                encoder_name   = out_codec->name;
 +                desc = avcodec_descriptor_get(out_codec->id);
 +                if (desc)
 +                    out_codec_name = desc->name;
 +                if (!strcmp(encoder_name, out_codec_name))
 +                    encoder_name = "native";
 +            }
 +
 +            av_log(NULL, AV_LOG_INFO, " (%s (%s) -> %s (%s))",
 +                   in_codec_name, decoder_name,
 +                   out_codec_name, encoder_name);
 +        }
 +        av_log(NULL, AV_LOG_INFO, "\n");
 +    }
 +
 +    if (ret) {
 +        av_log(NULL, AV_LOG_ERROR, "%s\n", error);
 +        return ret;
 +    }
 +
 +    if (sdp_filename || want_sdp) {
 +        print_sdp();
 +    }
 +
 +    transcode_init_done = 1;
 +
 +    return 0;
 +}
 +
 +/* Return 1 if there remain 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->finished && opts < opts_min) {
 +            opts_min = opts;
 +            ost_min  = ost->unavailable ? NULL : 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>|all <time>|-1 <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:\n%s", i, ret, buf);
 +                    } else if (key == 'c') {
 +                        fprintf(stderr, "Queing commands only on filters supporting the specific command is unsupported\n");
 +                        ret = AVERROR_PATCHWELCOME;
 +                    } else {
 +                        ret = avfilter_graph_queue_command(fg->graph, target, command, arg, 0, time);
 +                        if (ret < 0)
 +                            fprintf(stderr, "Queing command failed with error %s\n", av_err2str(ret));
 +                    }
 +                }
 +            }
 +        } 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->enc_ctx->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 first matching filter supporting it\n"
 +                        "C      Send/Que command to all matching filters\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;
 +    unsigned flags = f->non_blocking ? AV_THREAD_MESSAGE_NONBLOCK : 0;
 +    int ret = 0;
 +
 +    while (1) {
 +        AVPacket pkt;
 +        ret = av_read_frame(f->ctx, &pkt);
 +
 +        if (ret == AVERROR(EAGAIN)) {
 +            av_usleep(10000);
 +            continue;
 +        }
 +        if (ret < 0) {
 +            av_thread_message_queue_set_err_recv(f->in_thread_queue, ret);
 +            break;
 +        }
 +        av_dup_packet(&pkt);
 +        ret = av_thread_message_queue_send(f->in_thread_queue, &pkt, flags);
 +        if (flags && ret == AVERROR(EAGAIN)) {
 +            flags = 0;
 +            ret = av_thread_message_queue_send(f->in_thread_queue, &pkt, flags);
 +            av_log(f->ctx, AV_LOG_WARNING,
 +                   "Thread message queue blocking; consider raising the "
 +                   "thread_queue_size option (current value: %d)\n",
 +                   f->thread_queue_size);
 +        }
 +        if (ret < 0) {
 +            if (ret != AVERROR_EOF)
 +                av_log(f->ctx, AV_LOG_ERROR,
 +                       "Unable to send packet to main thread: %s\n",
 +                       av_err2str(ret));
 +            av_free_packet(&pkt);
 +            av_thread_message_queue_set_err_recv(f->in_thread_queue, ret);
 +            break;
 +        }
 +    }
 +
 +    return NULL;
 +}
 +
 +static void free_input_threads(void)
 +{
 +    int i;
 +
 +    for (i = 0; i < nb_input_files; i++) {
 +        InputFile *f = input_files[i];
 +        AVPacket pkt;
 +
 +        if (!f || !f->in_thread_queue)
 +            continue;
 +        av_thread_message_queue_set_err_send(f->in_thread_queue, AVERROR_EOF);
 +        while (av_thread_message_queue_recv(f->in_thread_queue, &pkt, 0) >= 0)
 +            av_free_packet(&pkt);
 +
 +        pthread_join(f->thread, NULL);
 +        f->joined = 1;
 +        av_thread_message_queue_free(&f->in_thread_queue);
 +    }
 +}
 +
 +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->ctx->pb ? !f->ctx->pb->seekable :
 +            strcmp(f->ctx->iformat->name, "lavfi"))
 +            f->non_blocking = 1;
 +        ret = av_thread_message_queue_alloc(&f->in_thread_queue,
 +                                            f->thread_queue_size, sizeof(AVPacket));
 +        if (ret < 0)
 +            return ret;
 +
 +        if ((ret = pthread_create(&f->thread, NULL, input_thread, f))) {
 +            av_log(NULL, AV_LOG_ERROR, "pthread_create failed: %s. Try to increase `ulimit -v` or decrease `ulimit -s`.\n", strerror(ret));
 +            av_thread_message_queue_free(&f->in_thread_queue);
 +            return AVERROR(ret);
 +        }
 +    }
 +    return 0;
 +}
 +
 +static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
 +{
 +    return av_thread_message_queue_recv(f->in_thread_queue, pkt,
 +                                        f->non_blocking ?
 +                                        AV_THREAD_MESSAGE_NONBLOCK : 0);
 +}
 +#endif
 +
 +static int get_input_packet(InputFile *f, AVPacket *pkt)
 +{
 +    if (f->rate_emu) {
 +        int i;
 +        for (i = 0; i < f->nb_streams; i++) {
 +            InputStream *ist = input_streams[f->ist_index + i];
 +            int64_t pts = av_rescale(ist->dts, 1000000, AV_TIME_BASE);
 +            int64_t now = av_gettime_relative() - ist->start;
 +            if (pts > now)
 +                return AVERROR(EAGAIN);
 +        }
 +    }
 +
 +#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);
 +        }
 +
 +        for (i = 0; i < ifile->nb_streams; i++) {
 +            ist = input_streams[ifile->ist_index + i];
 +            if (ist->decoding_needed) {
 +                ret = process_input_packet(ist, NULL);
 +                if (ret>0)
 +                    return 0;
 +            }
 +
 +            /* 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))
 +                    finish_output_stream(ost);
 +            }
 +        }
 +
 +        ifile->eof_reached = 1;
 +        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];
 +
 +    ist->data_size += pkt.size;
 +    ist->nb_packets++;
 +
 +    if (ist->discard)
 +        goto discard_packet;
 +
 +    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:%s off_time:%s\n",
 +               ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->dec_ctx->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),
 +               av_ts2str(input_files[ist->file_index]->ts_offset),
 +               av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
 +    }
 +
 +    if(!ist->wrap_correction_done && is->start_time != AV_NOPTS_VALUE && ist->st->pts_wrap_bits < 64){
 +        int64_t stime, stime2;
 +        // Correcting starttime based on the enabled streams
 +        // FIXME this ideally should be done before the first use of starttime but we do not know which are the enabled streams at that point.
 +        //       so we instead do it here as part of discontinuity handling
 +        if (   ist->next_dts == AV_NOPTS_VALUE
 +            && ifile->ts_offset == -is->start_time
 +            && (is->iformat->flags & AVFMT_TS_DISCONT)) {
 +            int64_t new_start_time = INT64_MAX;
 +            for (i=0; i<is->nb_streams; i++) {
 +                AVStream *st = is->streams[i];
 +                if(st->discard == AVDISCARD_ALL || st->start_time == AV_NOPTS_VALUE)
 +                    continue;
 +                new_start_time = FFMIN(new_start_time, av_rescale_q(st->start_time, st->time_base, AV_TIME_BASE_Q));
 +            }
 +            if (new_start_time > is->start_time) {
 +                av_log(is, AV_LOG_VERBOSE, "Correcting start time by %"PRId64"\n", new_start_time - is->start_time);
 +                ifile->ts_offset = -new_start_time;
 +            }
 +        }
 +
 +        stime = av_rescale_q(is->start_time, AV_TIME_BASE_Q, ist->st->time_base);
 +        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;
 +        }
 +    }
 +
 +    /* add the stream-global side data to the first packet */
 +    if (ist->nb_packets == 1) {
 +        if (ist->st->nb_side_data)
 +            av_packet_split_side_data(&pkt);
 +        for (i = 0; i < ist->st->nb_side_data; i++) {
 +            AVPacketSideData *src_sd = &ist->st->side_data[i];
 +            uint8_t *dst_data;
 +
 +            if (av_packet_get_side_data(&pkt, src_sd->type, NULL))
 +                continue;
 +            if (ist->autorotate && src_sd->type == AV_PKT_DATA_DISPLAYMATRIX)
 +                continue;
 +
 +            dst_data = av_packet_new_side_data(&pkt, src_sd->type, src_sd->size);
 +            if (!dst_data)
 +                exit_program(1);
 +
 +            memcpy(dst_data, src_sd->data, src_sd->size);
 +        }
 +    }
 +
 +    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 ((ist->dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
 +         ist->dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) &&
 +        pkt.dts != AV_NOPTS_VALUE && ist->next_dts == AV_NOPTS_VALUE && !copy_ts
 +        && (is->iformat->flags & AVFMT_TS_DISCONT) && ifile->last_ts != AV_NOPTS_VALUE) {
 +        int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
 +        int64_t delta   = pkt_dts - ifile->last_ts;
 +        if (delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
 +            delta >  1LL*dts_delta_threshold*AV_TIME_BASE){
 +            ifile->ts_offset -= delta;
 +            av_log(NULL, AV_LOG_DEBUG,
 +                   "Inter stream 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);
 +        }
 +    }
 +
 +    if ((ist->dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
 +         ist->dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) &&
 +         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 ||
 +                pkt_dts + AV_TIME_BASE/10 < FFMAX(ist->pts, ist->dts)) {
 +                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) {
 +                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) {
 +                    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;
 +                }
 +            }
 +        }
 +    }
 +
 +    if (pkt.dts != AV_NOPTS_VALUE)
 +        ifile->last_ts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
 +
 +    if (debug_ts) {
 +        av_log(NULL, AV_LOG_INFO, "demuxer+ffmpeg -> ist_index:%d type:%s pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s off:%s off_time:%s\n",
 +               ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->dec_ctx->codec_type),
 +               av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
 +               av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
 +               av_ts2str(input_files[ist->file_index]->ts_offset),
 +               av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
 +    }
 +
 +    sub2video_heartbeat(ist, pkt.pts);
 +
 +    process_input_packet(ist, &pkt);
 +
 +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(0);
 +
 +    if (ret == AVERROR_EOF) {
 +        ret = reap_filters(1);
 +        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(0);
 +}
 +
 +/*
 + * 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_relative();
 +
 +#if HAVE_PTHREADS
 +    if ((ret = init_input_threads()) < 0)
 +        goto fail;
 +#endif
 +
 +    while (!received_sigterm) {
 +        int64_t cur_time= av_gettime_relative();
 +
 +        /* 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;
 +            } else {
 +                char errbuf[128];
 +                av_strerror(ret, errbuf, sizeof(errbuf));
 +
 +                av_log(NULL, AV_LOG_ERROR, "Error while filtering: %s\n", errbuf);
 +                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) {
 +            process_input_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_relative());
 +
 +    /* close each encoder */
 +    for (i = 0; i < nb_output_streams; i++) {
 +        ost = output_streams[i];
 +        if (ost->encoding_needed) {
 +            av_freep(&ost->enc_ctx->stats_in);
 +        }
 +    }
 +
 +    /* close each decoder */
 +    for (i = 0; i < nb_input_streams; i++) {
 +        ist = input_streams[i];
 +        if (ist->decoding_needed) {
 +            avcodec_close(ist->dec_ctx);
 +            if (ist->hwaccel_uninit)
 +                ist->hwaccel_uninit(ist->dec_ctx);
 +        }
 +    }
 +
 +    /* 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->logfile) {
 +                    fclose(ost->logfile);
 +                    ost->logfile = NULL;
 +                }
 +                av_freep(&ost->forced_kf_pts);
 +                av_freep(&ost->apad);
 +                av_freep(&ost->disposition);
 +                av_dict_free(&ost->encoder_opts);
 +                av_dict_free(&ost->swr_opts);
 +                av_dict_free(&ost->resample_opts);
 +                av_dict_free(&ost->bsf_args);
 +            }
 +        }
 +    }
 +    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_relative();
 +#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)
 +{
 +}
 +
 +int main(int argc, char **argv)
 +{
 +    int ret;
 +    int64_t ti;
 +
 +    register_exit(ffmpeg_cleanup);
 +
 +    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 options and open all input/output files */
 +    ret = ffmpeg_parse_options(argc, argv);
 +    if (ret < 0)
 +        exit_program(1);
 +
 +    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);
 +    }
 +
 +    /* 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);
 +    }
 +
 +//     if (nb_input_files == 0) {
 +//         av_log(NULL, AV_LOG_FATAL, "At least one input file must be specified\n");
 +//         exit_program(1);
 +//     }
 +
 +    current_time = ti = getutime();
 +    if (transcode() < 0)
 +        exit_program(1);
 +    ti = getutime() - ti;
 +    if (do_benchmark) {
 +        av_log(NULL, AV_LOG_INFO, "bench: utime=%0.3fs\n", ti / 1000000.0);
 +    }
 +    av_log(NULL, AV_LOG_DEBUG, "%"PRIu64" frames successfully decoded, %"PRIu64" decoding errors\n",
 +           decode_error_stat[0], decode_error_stat[1]);
 +    if ((decode_error_stat[0] + decode_error_stat[1]) * max_error_rate < decode_error_stat[1])
 +        exit_program(69);
 +
 +    exit_program(received_nb_signals ? 255 : main_return_code);
 +    return main_return_code;
 +}
diff --cc ffmpeg.h
index cf2865f,0000000..e43c985
mode 100644,000000..100644
--- /dev/null
+++ b/ffmpeg.h
@@@ -1,548 -1,0 +1,551 @@@
 +/*
 + * 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
 + */
 +
 +#ifndef FFMPEG_H
 +#define FFMPEG_H
 +
 +#include "config.h"
 +
 +#include <stdint.h>
 +#include <stdio.h>
 +#include <signal.h>
 +
 +#if HAVE_PTHREADS
 +#include <pthread.h>
 +#endif
 +
 +#include "cmdutils.h"
 +
 +#include "libavformat/avformat.h"
 +#include "libavformat/avio.h"
 +
 +#include "libavcodec/avcodec.h"
 +
 +#include "libavfilter/avfilter.h"
 +
 +#include "libavutil/avutil.h"
 +#include "libavutil/dict.h"
 +#include "libavutil/eval.h"
 +#include "libavutil/fifo.h"
 +#include "libavutil/pixfmt.h"
 +#include "libavutil/rational.h"
 +#include "libavutil/threadmessage.h"
 +
 +#include "libswresample/swresample.h"
 +
 +#define VSYNC_AUTO       -1
 +#define VSYNC_PASSTHROUGH 0
 +#define VSYNC_CFR         1
 +#define VSYNC_VFR         2
 +#define VSYNC_VSCFR       0xfe
 +#define VSYNC_DROP        0xff
 +
 +#define MAX_STREAMS 1024    /* arbitrary sanity check value */
 +
 +enum HWAccelID {
 +    HWACCEL_NONE = 0,
 +    HWACCEL_AUTO,
 +    HWACCEL_VDPAU,
 +    HWACCEL_DXVA2,
 +    HWACCEL_VDA,
 +};
 +
 +typedef struct HWAccel {
 +    const char *name;
 +    int (*init)(AVCodecContext *s);
 +    enum HWAccelID id;
 +    enum AVPixelFormat pix_fmt;
 +} HWAccel;
 +
 +/* select an input stream for an output stream */
 +typedef struct StreamMap {
 +    int disabled;           /* 1 is this mapping is disabled by a negative map */
 +    int file_index;
 +    int stream_index;
 +    int sync_file_index;
 +    int sync_stream_index;
 +    char *linklabel;       /* name of an output link, for mapping lavfi outputs */
 +} StreamMap;
 +
 +typedef struct {
 +    int  file_idx,  stream_idx,  channel_idx; // input
 +    int ofile_idx, ostream_idx;               // output
 +} AudioChannelMap;
 +
 +typedef struct OptionsContext {
 +    OptionGroup *g;
 +
 +    /* input/output options */
 +    int64_t start_time;
 +    int seek_timestamp;
 +    const char *format;
 +
 +    SpecifierOpt *codec_names;
 +    int        nb_codec_names;
 +    SpecifierOpt *audio_channels;
 +    int        nb_audio_channels;
 +    SpecifierOpt *audio_sample_rate;
 +    int        nb_audio_sample_rate;
 +    SpecifierOpt *frame_rates;
 +    int        nb_frame_rates;
 +    SpecifierOpt *frame_sizes;
 +    int        nb_frame_sizes;
 +    SpecifierOpt *frame_pix_fmts;
 +    int        nb_frame_pix_fmts;
 +
 +    /* input options */
 +    int64_t input_ts_offset;
 +    int rate_emu;
 +    int accurate_seek;
 +    int thread_queue_size;
 +
 +    SpecifierOpt *ts_scale;
 +    int        nb_ts_scale;
 +    SpecifierOpt *dump_attachment;
 +    int        nb_dump_attachment;
 +    SpecifierOpt *hwaccels;
 +    int        nb_hwaccels;
 +    SpecifierOpt *hwaccel_devices;
 +    int        nb_hwaccel_devices;
 +    SpecifierOpt *autorotate;
 +    int        nb_autorotate;
 +
 +    /* output options */
 +    StreamMap *stream_maps;
 +    int     nb_stream_maps;
 +    AudioChannelMap *audio_channel_maps; /* one info entry per -map_channel */
 +    int           nb_audio_channel_maps; /* number of (valid) -map_channel settings */
 +    int metadata_global_manual;
 +    int metadata_streams_manual;
 +    int metadata_chapters_manual;
 +    const char **attachments;
 +    int       nb_attachments;
 +
 +    int chapters_input_file;
 +
 +    int64_t recording_time;
 +    int64_t stop_time;
 +    uint64_t limit_filesize;
 +    float mux_preload;
 +    float mux_max_delay;
 +    int shortest;
 +
 +    int video_disable;
 +    int audio_disable;
 +    int subtitle_disable;
 +    int data_disable;
 +
 +    /* indexed by output file stream index */
 +    int   *streamid_map;
 +    int nb_streamid_map;
 +
 +    SpecifierOpt *metadata;
 +    int        nb_metadata;
 +    SpecifierOpt *max_frames;
 +    int        nb_max_frames;
 +    SpecifierOpt *bitstream_filters;
 +    int        nb_bitstream_filters;
 +    SpecifierOpt *codec_tags;
 +    int        nb_codec_tags;
 +    SpecifierOpt *sample_fmts;
 +    int        nb_sample_fmts;
 +    SpecifierOpt *qscale;
 +    int        nb_qscale;
 +    SpecifierOpt *forced_key_frames;
 +    int        nb_forced_key_frames;
 +    SpecifierOpt *force_fps;
 +    int        nb_force_fps;
 +    SpecifierOpt *frame_aspect_ratios;
 +    int        nb_frame_aspect_ratios;
 +    SpecifierOpt *rc_overrides;
 +    int        nb_rc_overrides;
 +    SpecifierOpt *intra_matrices;
 +    int        nb_intra_matrices;
 +    SpecifierOpt *inter_matrices;
 +    int        nb_inter_matrices;
 +    SpecifierOpt *chroma_intra_matrices;
 +    int        nb_chroma_intra_matrices;
 +    SpecifierOpt *top_field_first;
 +    int        nb_top_field_first;
 +    SpecifierOpt *metadata_map;
 +    int        nb_metadata_map;
 +    SpecifierOpt *presets;
 +    int        nb_presets;
 +    SpecifierOpt *copy_initial_nonkeyframes;
 +    int        nb_copy_initial_nonkeyframes;
 +    SpecifierOpt *copy_prior_start;
 +    int        nb_copy_prior_start;
 +    SpecifierOpt *filters;
 +    int        nb_filters;
 +    SpecifierOpt *filter_scripts;
 +    int        nb_filter_scripts;
 +    SpecifierOpt *reinit_filters;
 +    int        nb_reinit_filters;
 +    SpecifierOpt *fix_sub_duration;
 +    int        nb_fix_sub_duration;
 +    SpecifierOpt *canvas_sizes;
 +    int        nb_canvas_sizes;
 +    SpecifierOpt *pass;
 +    int        nb_pass;
 +    SpecifierOpt *passlogfiles;
 +    int        nb_passlogfiles;
 +    SpecifierOpt *guess_layout_max;
 +    int        nb_guess_layout_max;
 +    SpecifierOpt *apad;
 +    int        nb_apad;
 +    SpecifierOpt *discard;
 +    int        nb_discard;
 +    SpecifierOpt *disposition;
 +    int        nb_disposition;
 +} OptionsContext;
 +
 +typedef struct InputFilter {
 +    AVFilterContext    *filter;
 +    struct InputStream *ist;
 +    struct FilterGraph *graph;
 +    uint8_t            *name;
 +} InputFilter;
 +
 +typedef struct OutputFilter {
 +    AVFilterContext     *filter;
 +    struct OutputStream *ost;
 +    struct FilterGraph  *graph;
 +    uint8_t             *name;
 +
 +    /* temporary storage until stream maps are processed */
 +    AVFilterInOut       *out_tmp;
 +    enum AVMediaType     type;
 +} OutputFilter;
 +
 +typedef struct FilterGraph {
 +    int            index;
 +    const char    *graph_desc;
 +
 +    AVFilterGraph *graph;
 +    int reconfiguration;
 +
 +    InputFilter   **inputs;
 +    int          nb_inputs;
 +    OutputFilter **outputs;
 +    int         nb_outputs;
 +} FilterGraph;
 +
 +typedef struct InputStream {
 +    int file_index;
 +    AVStream *st;
 +    int discard;             /* true if stream data should be discarded */
 +    int user_set_discard;
 +    int decoding_needed;     /* non zero if the packets must be decoded in 'raw_fifo', see DECODING_FOR_* */
 +#define DECODING_FOR_OST    1
 +#define DECODING_FOR_FILTER 2
 +
 +    AVCodecContext *dec_ctx;
 +    AVCodec *dec;
 +    AVFrame *decoded_frame;
 +    AVFrame *filter_frame; /* a ref of decoded_frame, to be sent to filters */
 +
 +    int64_t       start;     /* time when read started */
 +    /* predicted dts of the next packet read for this stream or (when there are
 +     * several frames in a packet) of the next frame in current packet (in AV_TIME_BASE units) */
 +    int64_t       next_dts;
 +    int64_t       dts;       ///< dts of the last packet read for this stream (in AV_TIME_BASE units)
 +
 +    int64_t       next_pts;  ///< synthetic pts for the next decode frame (in AV_TIME_BASE units)
 +    int64_t       pts;       ///< current pts of the decoded frame  (in AV_TIME_BASE units)
 +    int           wrap_correction_done;
 +
 +    int64_t filter_in_rescale_delta_last;
 +
 +    double ts_scale;
 +    int saw_first_ts;
 +    int showed_multi_packet_warning;
 +    AVDictionary *decoder_opts;
 +    AVRational framerate;               /* framerate forced with -r */
 +    int top_field_first;
 +    int guess_layout_max;
 +
 +    int autorotate;
 +    int resample_height;
 +    int resample_width;
 +    int resample_pix_fmt;
 +
 +    int      resample_sample_fmt;
 +    int      resample_sample_rate;
 +    int      resample_channels;
 +    uint64_t resample_channel_layout;
 +
 +    int fix_sub_duration;
 +    struct { /* previous decoded subtitle and related variables */
 +        int got_output;
 +        int ret;
 +        AVSubtitle subtitle;
 +    } prev_sub;
 +
 +    struct sub2video {
 +        int64_t last_pts;
 +        int64_t end_pts;
 +        AVFrame *frame;
 +        int w, h;
 +    } sub2video;
 +
 +    int dr1;
 +
 +    /* decoded data from this stream goes into all those filters
 +     * currently video and audio only */
 +    InputFilter **filters;
 +    int        nb_filters;
 +
 +    int reinit_filters;
 +
 +    /* hwaccel options */
 +    enum HWAccelID hwaccel_id;
 +    char  *hwaccel_device;
 +
 +    /* hwaccel context */
 +    enum HWAccelID active_hwaccel_id;
 +    void  *hwaccel_ctx;
 +    void (*hwaccel_uninit)(AVCodecContext *s);
 +    int  (*hwaccel_get_buffer)(AVCodecContext *s, AVFrame *frame, int flags);
 +    int  (*hwaccel_retrieve_data)(AVCodecContext *s, AVFrame *frame);
 +    enum AVPixelFormat hwaccel_pix_fmt;
 +    enum AVPixelFormat hwaccel_retrieved_pix_fmt;
 +
 +    /* stats */
 +    // combined size of all the packets read
 +    uint64_t data_size;
 +    /* number of packets successfully read for this stream */
 +    uint64_t nb_packets;
 +    // number of frames/samples retrieved from the decoder
 +    uint64_t frames_decoded;
 +    uint64_t samples_decoded;
 +} InputStream;
 +
 +typedef struct InputFile {
 +    AVFormatContext *ctx;
 +    int eof_reached;      /* true if eof reached */
 +    int eagain;           /* true if last read attempt returned EAGAIN */
 +    int ist_index;        /* index of first stream in input_streams */
 +    int64_t input_ts_offset;
 +    int64_t ts_offset;
 +    int64_t last_ts;
 +    int64_t start_time;   /* user-specified start time in AV_TIME_BASE or AV_NOPTS_VALUE */
 +    int seek_timestamp;
 +    int64_t recording_time;
 +    int nb_streams;       /* number of stream that ffmpeg is aware of; may be different
 +                             from ctx.nb_streams if new streams appear during av_read_frame() */
 +    int nb_streams_warn;  /* number of streams that the user was warned of */
 +    int rate_emu;
 +    int accurate_seek;
 +
 +#if HAVE_PTHREADS
 +    AVThreadMessageQueue *in_thread_queue;
 +    pthread_t thread;           /* thread reading from this file */
 +    int non_blocking;           /* reading packets from the thread should not block */
 +    int joined;                 /* the thread has been joined */
 +    int thread_queue_size;      /* maximum number of queued packets */
 +#endif
 +} InputFile;
 +
 +enum forced_keyframes_const {
 +    FKF_N,
 +    FKF_N_FORCED,
 +    FKF_PREV_FORCED_N,
 +    FKF_PREV_FORCED_T,
 +    FKF_T,
 +    FKF_NB
 +};
 +
 +extern const char *const forced_keyframes_const_names[];
 +
 +typedef enum {
 +    ENCODER_FINISHED = 1,
 +    MUXER_FINISHED = 2,
 +} OSTFinished ;
 +
 +typedef struct OutputStream {
 +    int file_index;          /* file index */
 +    int index;               /* stream index in the output file */
 +    int source_index;        /* InputStream index */
 +    AVStream *st;            /* stream in the output file */
 +    int encoding_needed;     /* true if encoding needed for this stream */
 +    int frame_number;
 +    /* input pts and corresponding output pts
 +       for A/V sync */
 +    struct InputStream *sync_ist; /* input stream to sync against */
 +    int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ // FIXME look at frame_number
 +    /* pts of the first frame encoded for this stream, used for limiting
 +     * recording time */
 +    int64_t first_pts;
 +    /* dts of the last packet sent to the muxer */
 +    int64_t last_mux_dts;
 +    AVBitStreamFilterContext *bitstream_filters;
 +    AVCodecContext *enc_ctx;
 +    AVCodec *enc;
 +    int64_t max_frames;
 +    AVFrame *filtered_frame;
 +    AVFrame *last_frame;
 +    int last_droped;
 +    int last_nb0_frames[3];
 +
 +    /* video only */
 +    AVRational frame_rate;
 +    int force_fps;
 +    int top_field_first;
 +    int rotate_overridden;
 +
 +    AVRational frame_aspect_ratio;
 +
 +    /* forced key frames */
 +    int64_t *forced_kf_pts;
 +    int forced_kf_count;
 +    int forced_kf_index;
 +    char *forced_keyframes;
 +    AVExpr *forced_keyframes_pexpr;
 +    double forced_keyframes_expr_const_values[FKF_NB];
 +
 +    /* audio only */
 +    int *audio_channels_map;             /* list of the channels id to pick from the source stream */
 +    int audio_channels_mapped;           /* number of channels in audio_channels_map */
 +
 +    char *logfile_prefix;
 +    FILE *logfile;
 +
 +    OutputFilter *filter;
 +    char *avfilter;
 +    char *filters;         ///< filtergraph associated to the -filter option
 +    char *filters_script;  ///< filtergraph script associated to the -filter_script option
 +
 +    int64_t sws_flags;
 +    AVDictionary *encoder_opts;
 +    AVDictionary *swr_opts;
 +    AVDictionary *resample_opts;
 +    AVDictionary *bsf_args;
 +    char *apad;
 +    OSTFinished finished;        /* no more packets should be written for this stream */
 +    int unavailable;                     /* true if the steram is unavailable (possibly temporarily) */
 +    int stream_copy;
 +    const char *attachment_filename;
 +    int copy_initial_nonkeyframes;
 +    int copy_prior_start;
 +    char *disposition;
 +
 +    int keep_pix_fmt;
 +
 +    AVCodecParserContext *parser;
 +
 +    /* stats */
 +    // combined size of all the packets written
 +    uint64_t data_size;
 +    // number of packets send to the muxer
 +    uint64_t packets_written;
 +    // number of frames/samples sent to the encoder
 +    uint64_t frames_encoded;
 +    uint64_t samples_encoded;
++
++    /* packet quality factor */
++    int quality;
 +} OutputStream;
 +
 +typedef struct OutputFile {
 +    AVFormatContext *ctx;
 +    AVDictionary *opts;
 +    int ost_index;       /* index of the first stream in output_streams */
 +    int64_t recording_time;  ///< desired length of the resulting file in microseconds == AV_TIME_BASE units
 +    int64_t start_time;      ///< start time in microseconds == AV_TIME_BASE units
 +    uint64_t limit_filesize; /* filesize limit expressed in bytes */
 +
 +    int shortest;
 +} OutputFile;
 +
 +extern InputStream **input_streams;
 +extern int        nb_input_streams;
 +extern InputFile   **input_files;
 +extern int        nb_input_files;
 +
 +extern OutputStream **output_streams;
 +extern int         nb_output_streams;
 +extern OutputFile   **output_files;
 +extern int         nb_output_files;
 +
 +extern FilterGraph **filtergraphs;
 +extern int        nb_filtergraphs;
 +
 +extern char *vstats_filename;
 +extern char *sdp_filename;
 +
 +extern float audio_drift_threshold;
 +extern float dts_delta_threshold;
 +extern float dts_error_threshold;
 +
 +extern int audio_volume;
 +extern int audio_sync_method;
 +extern int video_sync_method;
 +extern float frame_drop_threshold;
 +extern int do_benchmark;
 +extern int do_benchmark_all;
 +extern int do_deinterlace;
 +extern int do_hex_dump;
 +extern int do_pkt_dump;
 +extern int copy_ts;
 +extern int start_at_zero;
 +extern int copy_tb;
 +extern int debug_ts;
 +extern int exit_on_error;
 +extern int print_stats;
 +extern int qp_hist;
 +extern int stdin_interaction;
 +extern int frame_bits_per_raw_sample;
 +extern AVIOContext *progress_avio;
 +extern float max_error_rate;
 +extern int vdpau_api_ver;
 +
 +extern const AVIOInterruptCB int_cb;
 +
 +extern const OptionDef options[];
 +extern const HWAccel hwaccels[];
 +
 +
 +void term_init(void);
 +void term_exit(void);
 +
 +void reset_options(OptionsContext *o, int is_input);
 +void show_usage(void);
 +
 +void opt_output_file(void *optctx, const char *filename);
 +
 +void remove_avoptions(AVDictionary **a, AVDictionary *b);
 +void assert_avoptions(AVDictionary *m);
 +
 +int guess_input_channel_layout(InputStream *ist);
 +
 +enum AVPixelFormat choose_pixel_fmt(AVStream *st, AVCodecContext *avctx, AVCodec *codec, enum AVPixelFormat target);
 +void choose_sample_fmt(AVStream *st, AVCodec *codec);
 +
 +int configure_filtergraph(FilterGraph *fg);
 +int configure_output_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out);
 +int ist_in_filtergraph(FilterGraph *fg, InputStream *ist);
 +FilterGraph *init_simple_filtergraph(InputStream *ist, OutputStream *ost);
 +int init_complex_filtergraph(FilterGraph *fg);
 +
 +int ffmpeg_parse_options(int argc, char **argv);
 +
 +int vdpau_init(AVCodecContext *s);
 +int dxva2_init(AVCodecContext *s);
 +int vda_init(AVCodecContext *s);
 +
 +#endif /* FFMPEG_H */
@@@ -1055,68 -932,11 +1055,75 @@@ enum AVPacketSideDataType 
      AV_PKT_DATA_AUDIO_SERVICE_TYPE,
  
      /**
+      * This side data contains an integer value representing the quality
+      * factor of the compressed frame. Allowed range is between 1 (good)
+      * and FF_LAMBDA_MAX (bad).
+      */
+     AV_PKT_DATA_QUALITY_FACTOR,
++
++    /**
 +     * Recommmends skipping the specified number of samples
 +     * @code
 +     * u32le number of samples to skip from start of this packet
 +     * u32le number of samples to skip from end of this packet
 +     * u8    reason for start skip
 +     * u8    reason for end   skip (0=padding silence, 1=convergence)
 +     * @endcode
 +     */
 +    AV_PKT_DATA_SKIP_SAMPLES=70,
 +
 +    /**
 +     * An AV_PKT_DATA_JP_DUALMONO side data packet indicates that
 +     * the packet may contain "dual mono" audio specific to Japanese DTV
 +     * and if it is true, recommends only the selected channel to be used.
 +     * @code
 +     * u8    selected channels (0=mail/left, 1=sub/right, 2=both)
 +     * @endcode
 +     */
 +    AV_PKT_DATA_JP_DUALMONO,
 +
 +    /**
 +     * A list of zero terminated key/value strings. There is no end marker for
 +     * the list, so it is required to rely on the side data size to stop.
 +     */
 +    AV_PKT_DATA_STRINGS_METADATA,
 +
 +    /**
 +     * Subtitle event position
 +     * @code
 +     * u32le x1
 +     * u32le y1
 +     * u32le x2
 +     * u32le y2
 +     * @endcode
 +     */
 +    AV_PKT_DATA_SUBTITLE_POSITION,
 +
 +    /**
 +     * Data found in BlockAdditional element of matroska container. There is
 +     * no end marker for the data, so it is required to rely on the side data
 +     * size to recognize the end. 8 byte id (as found in BlockAddId) followed
 +     * by data.
 +     */
 +    AV_PKT_DATA_MATROSKA_BLOCKADDITIONAL,
 +
 +    /**
 +     * The optional first identifier line of a WebVTT cue.
 +     */
 +    AV_PKT_DATA_WEBVTT_IDENTIFIER,
 +
 +    /**
 +     * The optional settings (rendering instructions) that immediately
 +     * follow the timestamp specifier of a WebVTT cue.
 +     */
 +    AV_PKT_DATA_WEBVTT_SETTINGS,
 +
 +    /**
 +     * A list of zero terminated key/value strings. There is no end marker for
 +     * the list, so it is required to rely on the side data size to stop. This
 +     * side data includes updated metadata which appeared in the stream.
 +     */
 +    AV_PKT_DATA_METADATA_UPDATE,
  };
  
  typedef struct AVPacketSideData {
@@@ -1050,10 -1036,13 +1050,10 @@@ static int dnxhd_encode_picture(AVCodec
      DNXHDEncContext *ctx = avctx->priv_data;
      int first_field = 1;
      int offset, i, ret;
-     uint8_t *buf;
+     uint8_t *buf, *sd;
  
 -    if ((ret = ff_alloc_packet(pkt, ctx->cid_table->frame_size)) < 0) {
 -        av_log(avctx, AV_LOG_ERROR,
 -               "output buffer is too small to compress picture\n");
 +    if ((ret = ff_alloc_packet2(avctx, pkt, ctx->cid_table->frame_size)) < 0)
          return ret;
 -    }
      buf = pkt->data;
  
      dnxhd_load_picture(ctx, frame);
Simple merge
Simple merge
Simple merge
@@@ -1731,11 -1589,9 +1731,12 @@@ int ff_mpv_encode_picture(AVCodecContex
  
      /* output? */
      if (s->new_picture.f->data[0]) {
 -        if (!pkt->data &&
 -            (ret = ff_alloc_packet(pkt, s->mb_width*s->mb_height*MAX_MB_BYTES)) < 0)
+         uint8_t *sd;
 +        int growing_buffer = context_count == 1 && !pkt->data && !s->data_partitioning;
 +        int pkt_size = growing_buffer ? FFMAX(s->mb_width*s->mb_height*64+10000, avctx->internal->byte_buffer_size) - FF_INPUT_BUFFER_PADDING_SIZE
 +                                              :
 +                                              s->mb_width*s->mb_height*(MAX_MB_BYTES+100)+10000;
 +        if ((ret = ff_alloc_packet2(avctx, pkt, pkt_size)) < 0)
              return ret;
          if (s->mb_info) {
              s->mb_info_ptr = av_packet_new_side_data(pkt,
@@@ -574,10 -569,14 +574,11 @@@ static int svq1_encode_frame(AVCodecCon
  {
      SVQ1EncContext *const s = avctx->priv_data;
      int i, ret;
+     uint8_t *sd;
  
 -    if (!pkt->data &&
 -        (ret = av_new_packet(pkt, s->y_block_width * s->y_block_height *
 -                             MAX_MB_BYTES * 3 + FF_MIN_BUFFER_SIZE)) < 0) {
 -        av_log(avctx, AV_LOG_ERROR, "Error getting output packet.\n");
 +    if ((ret = ff_alloc_packet2(avctx, pkt, s->y_block_width * s->y_block_height *
 +                             MAX_MB_BYTES*3 + FF_MIN_BUFFER_SIZE)) < 0)
          return ret;
 -    }
  
      if (avctx->pix_fmt != AV_PIX_FMT_YUV410P) {
          av_log(avctx, AV_LOG_ERROR, "unsupported pixel format\n");
@@@ -29,8 -29,8 +29,8 @@@
  #include "libavutil/version.h"
  
  #define LIBAVCODEC_VERSION_MAJOR 56
- #define LIBAVCODEC_VERSION_MINOR  49
- #define LIBAVCODEC_VERSION_MICRO 101
 -#define LIBAVCODEC_VERSION_MINOR 33
 -#define LIBAVCODEC_VERSION_MICRO  0
++#define LIBAVCODEC_VERSION_MINOR  50
++#define LIBAVCODEC_VERSION_MICRO 100
  
  #define LIBAVCODEC_VERSION_INT  AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
                                                 LIBAVCODEC_VERSION_MINOR, \
Simple merge