Merge remote-tracking branch 'qatar/master'
authorMichael Niedermayer <michaelni@gmx.at>
Wed, 15 Feb 2012 00:38:34 +0000 (01:38 +0100)
committerMichael Niedermayer <michaelni@gmx.at>
Wed, 15 Feb 2012 00:52:14 +0000 (01:52 +0100)
* qatar/master: (21 commits)
  CDXL demuxer and decoder
  hls: Re-add legacy applehttp name to preserve interface compatibility.
  hlsproto: Rename the functions and context
  hlsproto: Encourage users to try the hls demuxer instead of the proto
  doc: Move the hls protocol section into the right place
  libavformat: Rename the applehttp protocol to hls
  hls: Rename the functions and context
  libavformat: Rename the applehttp demuxer to hls
  rtpdec: Support H263 in RFC 2190 format
  rv30: check block type validity
  ttadec: CRC checking
  movenc: Support muxing VC1
  avconv: Don't split out inline sequence headers when stream copying VC1
  rv34: handle size changes during frame multithreading
  rv40: prevent undefined signed overflow in rv40_loop_filter()
  rv34: use AVERROR return values in ff_rv34_decode_frame()
  rv34: use uint16_t for RV34DecContext.deblock_coefs
  librtmp: Add "lib" prefix to librtmp URLProtocol declarations.
  movenc: Use defines instead of hardcoded numbers for RTCP types
  smjpegdec: implement seeking
  ...

Conflicts:
Changelog
doc/general.texi
libavcodec/avcodec.h
libavcodec/rv30.c
libavcodec/tta.c
libavcodec/version.h
libavformat/Makefile
libavformat/allformats.c
libavformat/version.h
libswscale/x86/swscale_mmx.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
24 files changed:
1  2 
Changelog
configure
doc/general.texi
doc/protocols.texi
ffmpeg.c
libavcodec/Makefile
libavcodec/allcodecs.c
libavcodec/avcodec.h
libavcodec/rv34.c
libavcodec/rv34.h
libavcodec/rv40.c
libavcodec/tta.c
libavcodec/version.h
libavformat/Makefile
libavformat/allformats.c
libavformat/hls.c
libavformat/hlsproto.c
libavformat/librtmp.c
libavformat/movenc.c
libavformat/movenc.h
libavformat/movenchint.c
libavformat/rtpdec.c
libavformat/rtpdec_formats.h
libavformat/version.h

diff --cc Changelog
+++ b/Changelog
@@@ -1,57 -1,35 +1,58 @@@
  Entries are sorted chronologically from oldest to youngest within each release,
  releases are sorted from youngest to oldest.
  
 -version <next>:
 -
 -- XWD encoder and decoder
 -- Support for fragmentation in the mov/mp4 muxer
 -- ISMV (Smooth Streaming) muxer
 +version next:
 +- v408 Quicktime and Microsoft AYUV Uncompressed 4:4:4:4 encoder and decoder
 +- setfield filter
+ - CDXL demuxer and decoder
  
  
 -version 0.8:
 -
 +version 0.10:
 +- Fixes: CVE-2011-3929, CVE-2011-3934, CVE-2011-3935, CVE-2011-3936,
 +         CVE-2011-3937, CVE-2011-3940, CVE-2011-3941, CVE-2011-3944,
 +         CVE-2011-3945, CVE-2011-3946, CVE-2011-3947, CVE-2011-3949,
 +         CVE-2011-3950, CVE-2011-3951, CVE-2011-3952
 +- v410 Quicktime Uncompressed 4:4:4 10-bit encoder and decoder
 +- SBaGen (SBG) binaural beats script demuxer
 +- OpenMG Audio muxer
 +- Timecode extraction in DV and MOV
 +- thumbnail video filter
 +- XML output in ffprobe
 +- asplit audio filter
 +- tinterlace video filter
 +- astreamsync audio filter
 +- amerge audio filter
 +- ISMV (Smooth Streaming) muxer
  - GSM audio parser
  - SMJPEG muxer
 -
 -
 -version 0.8_beta2:
 -
 +- XWD encoder and decoder
  - Automatic thread count based on detection number of (available) CPU cores
 -- Deprecate libpostproc. If desired, the switch --enable-postproc will
 -  enable it but it may be removed in a later Libav release.
 +- y41p Brooktree Uncompressed 4:1:1 12-bit encoder and decoder
 +- ffprobe -show_error option
 +- Avid 1:1 10-bit RGB Packer codec
 +- v308 Quicktime Uncompressed 4:4:4 encoder and decoder
 +- yuv4 libquicktime packed 4:2:0 encoder and decoder
 +- ffprobe -show_frames option
 +- silencedetect audio filter
 +- ffprobe -show_program_version, -show_library_versions, -show_versions options
  - rv34: frame-level multi-threading
  - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
 +- Improved PGS subtitle decoder
 +- dumpgraph option to lavfi device
 +- r210 and r10k encoders
 +- ffwavesynth decoder
 +- aviocat tool
 +- ffeval tool
  
  
 -version 0.8_beta1:
 +version 0.9:
  
 +- openal input device added
 +- boxblur filter added
  - BWF muxer
  - Flash Screen Video 2 decoder
 -- ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
 -- ffmpeg deprecated, added avconv, which is almost the same for now, except
 +- lavfi input device added
 +- added avconv, which is almost the same for now, except
  for a few incompatible changes in the options, which will hopefully make them
  easier to use. The changes are:
      * The options placement is now strictly enforced! While in theory the
diff --cc configure
Simple merge
@@@ -143,7 -131,9 +143,9 @@@ library
      @tab Multimedia format used by Delphine Software games.
  @item CD+G                      @tab   @tab X
      @tab Video format used by CD+G karaoke disks
 -@item Core Audio Format         @tab   @tab X
+ @item Commodore CDXL            @tab   @tab X
+     @tab Amiga CD video format
 +@item Core Audio Format         @tab X @tab X
      @tab Apple Core Audio Format
  @item CRC testing format        @tab X @tab
  @item Creative Voice            @tab X @tab X
Simple merge
diff --cc ffmpeg.c
index 36a445e,0000000..efe579a
mode 100644,000000..100644
--- /dev/null
+++ b/ffmpeg.c
@@@ -1,5155 -1,0 +1,5156 @@@
 +/*
 + * 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 <signal.h>
 +#include <limits.h>
 +#include <unistd.h>
 +#include "libavformat/avformat.h"
 +#include "libavdevice/avdevice.h"
 +#include "libswscale/swscale.h"
 +#include "libavutil/opt.h"
 +#include "libavcodec/audioconvert.h"
 +#include "libavutil/audioconvert.h"
 +#include "libavutil/parseutils.h"
 +#include "libavutil/samplefmt.h"
 +#include "libavutil/colorspace.h"
 +#include "libavutil/fifo.h"
 +#include "libavutil/intreadwrite.h"
 +#include "libavutil/dict.h"
 +#include "libavutil/mathematics.h"
 +#include "libavutil/pixdesc.h"
 +#include "libavutil/avstring.h"
 +#include "libavutil/libm.h"
 +#include "libavutil/imgutils.h"
 +#include "libavutil/timestamp.h"
 +#include "libavformat/os_support.h"
 +#include "libswresample/swresample.h"
 +
 +#include "libavformat/ffm.h" // not public API
 +
 +#if CONFIG_AVFILTER
 +# include "libavfilter/avcodec.h"
 +# include "libavfilter/avfilter.h"
 +# include "libavfilter/avfiltergraph.h"
 +# include "libavfilter/buffersink.h"
 +# include "libavfilter/buffersrc.h"
 +# include "libavfilter/vsrc_buffer.h"
 +#endif
 +
 +#if HAVE_SYS_RESOURCE_H
 +#include <sys/types.h>
 +#include <sys/time.h>
 +#include <sys/resource.h>
 +#elif HAVE_GETPROCESSTIMES
 +#include <windows.h>
 +#endif
 +#if HAVE_GETPROCESSMEMORYINFO
 +#include <windows.h>
 +#include <psapi.h>
 +#endif
 +
 +#if HAVE_SYS_SELECT_H
 +#include <sys/select.h>
 +#endif
 +
 +#if HAVE_TERMIOS_H
 +#include <fcntl.h>
 +#include <sys/ioctl.h>
 +#include <sys/time.h>
 +#include <termios.h>
 +#elif HAVE_KBHIT
 +#include <conio.h>
 +#endif
 +#include <time.h>
 +
 +#include "cmdutils.h"
 +
 +#include "libavutil/avassert.h"
 +
 +#define VSYNC_AUTO       -1
 +#define VSYNC_PASSTHROUGH 0
 +#define VSYNC_CFR         1
 +#define VSYNC_VFR         2
 +#define VSYNC_DROP        0xff
 +
 +const char program_name[] = "ffmpeg";
 +const int program_birth_year = 2000;
 +
 +/* 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;
 +} StreamMap;
 +
 +typedef struct {
 +    int  file_idx,  stream_idx,  channel_idx; // input
 +    int ofile_idx, ostream_idx;               // output
 +} AudioChannelMap;
 +
 +/**
 + * select an input file for an output file
 + */
 +typedef struct MetadataMap {
 +    int  file;      ///< file index
 +    char type;      ///< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
 +    int  index;     ///< stream/chapter/program number
 +} MetadataMap;
 +
 +static const OptionDef options[];
 +
 +#define MAX_STREAMS 1024    /* arbitrary sanity check value */
 +
 +static int frame_bits_per_raw_sample = 0;
 +static int video_discard = 0;
 +static int same_quant = 0;
 +static int do_deinterlace = 0;
 +static int intra_dc_precision = 8;
 +static int qp_hist = 0;
 +static int intra_only = 0;
 +static const char *video_codec_name    = NULL;
 +static const char *audio_codec_name    = NULL;
 +static const char *subtitle_codec_name = NULL;
 +
 +static int file_overwrite = 0;
 +static int no_file_overwrite = 0;
 +static int do_benchmark = 0;
 +static int do_hex_dump = 0;
 +static int do_pkt_dump = 0;
 +static int do_psnr = 0;
 +static int do_pass = 0;
 +static const char *pass_logfilename_prefix;
 +static int video_sync_method = VSYNC_AUTO;
 +static int audio_sync_method = 0;
 +static float audio_drift_threshold = 0.1;
 +static int copy_ts = 0;
 +static int copy_tb = -1;
 +static int opt_shortest = 0;
 +static char *vstats_filename;
 +static FILE *vstats_file;
 +
 +static int audio_volume = 256;
 +
 +static int exit_on_error = 0;
 +static int using_stdin = 0;
 +static int run_as_daemon  = 0;
 +static volatile int received_nb_signals = 0;
 +static int64_t video_size = 0;
 +static int64_t audio_size = 0;
 +static int64_t extra_size = 0;
 +static int nb_frames_dup = 0;
 +static int nb_frames_drop = 0;
 +static int input_sync;
 +
 +static float dts_delta_threshold = 10;
 +static float dts_error_threshold = 3600*30;
 +
 +static int print_stats = 1;
 +static int debug_ts = 0;
 +
 +static uint8_t *audio_buf;
 +static unsigned int allocated_audio_buf_size;
 +
 +static uint8_t *input_tmp= NULL;
 +
 +#define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
 +
 +typedef struct FrameBuffer {
 +    uint8_t *base[4];
 +    uint8_t *data[4];
 +    int  linesize[4];
 +
 +    int h, w;
 +    enum PixelFormat pix_fmt;
 +
 +    int refcount;
 +    struct InputStream *ist;
 +    struct FrameBuffer *next;
 +} FrameBuffer;
 +
 +typedef struct InputStream {
 +    int file_index;
 +    AVStream *st;
 +    int discard;             /* true if stream data should be discarded */
 +    int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
 +    AVCodec *dec;
 +    AVFrame *decoded_frame;
 +    AVFrame *filtered_frame;
 +
 +    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 */
 +    int64_t       next_dts;
 +    /* dts of the last packet read for this stream */
 +    int64_t       dts;
 +
 +    int64_t       next_pts;  ///< synthetic pts for the next decode frame
 +    int64_t       pts;       ///< current pts of the decoded frame
 +    double ts_scale;
 +    int is_start;            /* is 1 at the start and after a discontinuity */
 +    int showed_multi_packet_warning;
 +    AVDictionary *opts;
 +
 +    /* a pool of free buffers for decoded data */
 +    FrameBuffer *buffer_pool;
 +    int dr1;
 +} InputStream;
 +
 +typedef struct InputFile {
 +    AVFormatContext *ctx;
 +    int eof_reached;      /* true if eof reached */
 +    int ist_index;        /* index of first stream in input_streams */
 +    int buffer_size;      /* current total buffer size */
 +    int64_t ts_offset;
 +    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 rate_emu;
 +} InputFile;
 +
 +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
 +    AVBitStreamFilterContext *bitstream_filters;
 +    AVCodec *enc;
 +    int64_t max_frames;
 +    AVFrame *output_frame;
 +
 +    /* video only */
 +    int video_resample;
 +    AVFrame resample_frame;              /* temporary frame for image resampling */
 +    struct SwsContext *img_resample_ctx; /* for image resampling */
 +    int resample_height;
 +    int resample_width;
 +    int resample_pix_fmt;
 +    AVRational frame_rate;
 +    int force_fps;
 +    int top_field_first;
 +
 +    float frame_aspect_ratio;
 +
 +    /* forced key frames */
 +    int64_t *forced_kf_pts;
 +    int forced_kf_count;
 +    int forced_kf_index;
 +
 +    /* audio only */
 +    int audio_resample;
 +    int audio_channels_map[SWR_CH_MAX];  ///< list of the channels id to pick from the source stream
 +    int audio_channels_mapped;           ///< number of channels in audio_channels_map
 +    int resample_sample_fmt;
 +    int resample_channels;
 +    int resample_sample_rate;
 +    float rematrix_volume;
 +    AVFifoBuffer *fifo;     /* for compression: one audio fifo per codec */
 +    FILE *logfile;
 +
 +    struct SwrContext *swr;
 +
 +#if CONFIG_AVFILTER
 +    AVFilterContext *output_video_filter;
 +    AVFilterContext *input_video_filter;
 +    AVFilterBufferRef *picref;
 +    char *avfilter;
 +    AVFilterGraph *graph;
 +#endif
 +
 +    int64_t sws_flags;
 +    AVDictionary *opts;
 +    int is_past_recording_time;
 +    int stream_copy;
 +    const char *attachment_filename;
 +    int copy_initial_nonkeyframes;
 +} OutputStream;
 +
 +
 +#if HAVE_TERMIOS_H
 +
 +/* init terminal so that we can grab keys */
 +static struct termios oldtty;
 +static int restore_tty;
 +#endif
 +
 +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 */
 +    int64_t start_time;     /* start time in microseconds */
 +    uint64_t limit_filesize; /* filesize limit expressed in bytes */
 +} OutputFile;
 +
 +static InputStream *input_streams   = NULL;
 +static int         nb_input_streams = 0;
 +static InputFile   *input_files     = NULL;
 +static int         nb_input_files   = 0;
 +
 +static OutputStream *output_streams = NULL;
 +static int        nb_output_streams = 0;
 +static OutputFile   *output_files   = NULL;
 +static int        nb_output_files   = 0;
 +
 +typedef struct OptionsContext {
 +    /* input/output options */
 +    int64_t start_time;
 +    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 *rematrix_volume;
 +    int        nb_rematrix_volume;
 +    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;
 +
 +    SpecifierOpt *ts_scale;
 +    int        nb_ts_scale;
 +    SpecifierOpt *dump_attachment;
 +    int        nb_dump_attachment;
 +
 +    /* 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
 +    /* first item specifies output metadata, second is input */
 +    MetadataMap (*meta_data_maps)[2];
 +    int nb_meta_data_maps;
 +    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;
 +    uint64_t limit_filesize;
 +    float mux_preload;
 +    float mux_max_delay;
 +
 +    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 *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;
 +#if CONFIG_AVFILTER
 +    SpecifierOpt *filters;
 +    int        nb_filters;
 +#endif
 +} OptionsContext;
 +
 +#define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
 +{\
 +    int i, ret;\
 +    for (i = 0; i < o->nb_ ## name; i++) {\
 +        char *spec = o->name[i].specifier;\
 +        if ((ret = check_stream_specifier(fmtctx, st, spec)) > 0)\
 +            outvar = o->name[i].u.type;\
 +        else if (ret < 0)\
 +            exit_program(1);\
 +    }\
 +}
 +
 +static void reset_options(OptionsContext *o, int is_input)
 +{
 +    const OptionDef *po = options;
 +    OptionsContext bak= *o;
 +
 +    /* all OPT_SPEC and OPT_STRING can be freed in generic way */
 +    while (po->name) {
 +        void *dst = (uint8_t*)o + po->u.off;
 +
 +        if (po->flags & OPT_SPEC) {
 +            SpecifierOpt **so = dst;
 +            int i, *count = (int*)(so + 1);
 +            for (i = 0; i < *count; i++) {
 +                av_freep(&(*so)[i].specifier);
 +                if (po->flags & OPT_STRING)
 +                    av_freep(&(*so)[i].u.str);
 +            }
 +            av_freep(so);
 +            *count = 0;
 +        } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
 +            av_freep(dst);
 +        po++;
 +    }
 +
 +    av_freep(&o->stream_maps);
 +    av_freep(&o->audio_channel_maps);
 +    av_freep(&o->meta_data_maps);
 +    av_freep(&o->streamid_map);
 +
 +    memset(o, 0, sizeof(*o));
 +
 +    if(is_input) o->recording_time = bak.recording_time;
 +    else         o->recording_time = INT64_MAX;
 +    o->mux_max_delay  = 0.7;
 +    o->limit_filesize = UINT64_MAX;
 +    o->chapters_input_file = INT_MAX;
 +
 +    uninit_opts();
 +    init_opts();
 +}
 +
 +static int alloc_buffer(AVCodecContext *s, InputStream *ist, FrameBuffer **pbuf)
 +{
 +    FrameBuffer  *buf = av_mallocz(sizeof(*buf));
 +    int i, ret;
 +    const int pixel_size = av_pix_fmt_descriptors[s->pix_fmt].comp[0].step_minus1+1;
 +    int h_chroma_shift, v_chroma_shift;
 +    int edge = 32; // XXX should be avcodec_get_edge_width(), but that fails on svq1
 +    int w = s->width, h = s->height;
 +
 +    if (!buf)
 +        return AVERROR(ENOMEM);
 +
 +    if (!(s->flags & CODEC_FLAG_EMU_EDGE)) {
 +        w += 2*edge;
 +        h += 2*edge;
 +    }
 +
 +    avcodec_align_dimensions(s, &w, &h);
 +    if ((ret = av_image_alloc(buf->base, buf->linesize, w, h,
 +                              s->pix_fmt, 32)) < 0) {
 +        av_freep(&buf);
 +        return ret;
 +    }
 +    /* XXX this shouldn't be needed, but some tests break without this line
 +     * those decoders are buggy and need to be fixed.
 +     * the following tests fail:
 +     * bethsoft-vid, cdgraphics, ansi, aasc, fraps-v1, qtrle-1bit
 +     */
 +    memset(buf->base[0], 128, ret);
 +
 +    avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift);
 +    for (i = 0; i < FF_ARRAY_ELEMS(buf->data); i++) {
 +        const int h_shift = i==0 ? 0 : h_chroma_shift;
 +        const int v_shift = i==0 ? 0 : v_chroma_shift;
 +        if (s->flags & CODEC_FLAG_EMU_EDGE)
 +            buf->data[i] = buf->base[i];
 +        else
 +            buf->data[i] = buf->base[i] +
 +                           FFALIGN((buf->linesize[i]*edge >> v_shift) +
 +                                   (pixel_size*edge >> h_shift), 32);
 +    }
 +    buf->w       = s->width;
 +    buf->h       = s->height;
 +    buf->pix_fmt = s->pix_fmt;
 +    buf->ist     = ist;
 +
 +    *pbuf = buf;
 +    return 0;
 +}
 +
 +static void free_buffer_pool(InputStream *ist)
 +{
 +    FrameBuffer *buf = ist->buffer_pool;
 +    while (buf) {
 +        ist->buffer_pool = buf->next;
 +        av_freep(&buf->base[0]);
 +        av_free(buf);
 +        buf = ist->buffer_pool;
 +    }
 +}
 +
 +static void unref_buffer(InputStream *ist, FrameBuffer *buf)
 +{
 +    av_assert0(buf->refcount);
 +    buf->refcount--;
 +    if (!buf->refcount) {
 +        buf->next = ist->buffer_pool;
 +        ist->buffer_pool = buf;
 +    }
 +}
 +
 +static int codec_get_buffer(AVCodecContext *s, AVFrame *frame)
 +{
 +    InputStream *ist = s->opaque;
 +    FrameBuffer *buf;
 +    int ret, i;
 +
 +    if(av_image_check_size(s->width, s->height, 0, s))
 +        return -1;
 +
 +    if (!ist->buffer_pool && (ret = alloc_buffer(s, ist, &ist->buffer_pool)) < 0)
 +        return ret;
 +
 +    buf              = ist->buffer_pool;
 +    ist->buffer_pool = buf->next;
 +    buf->next        = NULL;
 +    if (buf->w != s->width || buf->h != s->height || buf->pix_fmt != s->pix_fmt) {
 +        av_freep(&buf->base[0]);
 +        av_free(buf);
 +        ist->dr1 = 0;
 +        if ((ret = alloc_buffer(s, ist, &buf)) < 0)
 +            return ret;
 +    }
 +    buf->refcount++;
 +
 +    frame->opaque        = buf;
 +    frame->type          = FF_BUFFER_TYPE_USER;
 +    frame->extended_data = frame->data;
 +    frame->pkt_pts       = s->pkt ? s->pkt->pts : AV_NOPTS_VALUE;
 +
 +    for (i = 0; i < FF_ARRAY_ELEMS(buf->data); i++) {
 +        frame->base[i]     = buf->base[i];  // XXX h264.c uses base though it shouldn't
 +        frame->data[i]     = buf->data[i];
 +        frame->linesize[i] = buf->linesize[i];
 +    }
 +
 +    return 0;
 +}
 +
 +static void codec_release_buffer(AVCodecContext *s, AVFrame *frame)
 +{
 +    InputStream *ist = s->opaque;
 +    FrameBuffer *buf = frame->opaque;
 +    int i;
 +
 +    if(frame->type!=FF_BUFFER_TYPE_USER)
 +        return avcodec_default_release_buffer(s, frame);
 +
 +    for (i = 0; i < FF_ARRAY_ELEMS(frame->data); i++)
 +        frame->data[i] = NULL;
 +
 +    unref_buffer(ist, buf);
 +}
 +
 +static void filter_release_buffer(AVFilterBuffer *fb)
 +{
 +    FrameBuffer *buf = fb->priv;
 +    av_free(fb);
 +    unref_buffer(buf->ist, buf);
 +}
 +
 +#if CONFIG_AVFILTER
 +
 +static int configure_video_filters(InputStream *ist, OutputStream *ost)
 +{
 +    AVFilterContext *last_filter, *filter;
 +    /** filter graph containing all filters including input & output */
 +    AVCodecContext *codec = ost->st->codec;
 +    AVCodecContext *icodec = ist->st->codec;
 +    enum PixelFormat pix_fmts[] = { codec->pix_fmt, PIX_FMT_NONE };
 +    AVBufferSinkParams *buffersink_params = av_buffersink_params_alloc();
 +    AVRational sample_aspect_ratio;
 +    char args[255];
 +    int ret;
 +
 +    ost->graph = avfilter_graph_alloc();
 +    if (!ost->graph)
 +        return AVERROR(ENOMEM);
 +
 +    if (ist->st->sample_aspect_ratio.num) {
 +        sample_aspect_ratio = ist->st->sample_aspect_ratio;
 +    } else
 +        sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
 +
 +    snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
 +             ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
 +             sample_aspect_ratio.num, sample_aspect_ratio.den);
 +
 +    ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
 +                                       "src", args, NULL, ost->graph);
 +    if (ret < 0)
 +        return ret;
 +
 +#if FF_API_OLD_VSINK_API
 +    ret = avfilter_graph_create_filter(&ost->output_video_filter, avfilter_get_by_name("buffersink"),
 +                                       "out", NULL, pix_fmts, ost->graph);
 +#else
 +    buffersink_params->pixel_fmts = pix_fmts;
 +    ret = avfilter_graph_create_filter(&ost->output_video_filter, avfilter_get_by_name("buffersink"),
 +                                       "out", NULL, buffersink_params, ost->graph);
 +#endif
 +    av_freep(&buffersink_params);
 +
 +    if (ret < 0)
 +        return ret;
 +    last_filter = ost->input_video_filter;
 +
 +    if (codec->width != icodec->width || codec->height != icodec->height) {
 +        snprintf(args, 255, "%d:%d:flags=0x%X",
 +                 codec->width,
 +                 codec->height,
 +                 (unsigned)ost->sws_flags);
 +        if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
 +                                                NULL, args, NULL, ost->graph)) < 0)
 +            return ret;
 +        if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
 +            return ret;
 +        last_filter = filter;
 +    }
 +
 +    snprintf(args, sizeof(args), "flags=0x%X", (unsigned)ost->sws_flags);
 +    ost->graph->scale_sws_opts = av_strdup(args);
 +
 +    if (ost->avfilter) {
 +        AVFilterInOut *outputs = avfilter_inout_alloc();
 +        AVFilterInOut *inputs  = avfilter_inout_alloc();
 +
 +        outputs->name    = av_strdup("in");
 +        outputs->filter_ctx = last_filter;
 +        outputs->pad_idx = 0;
 +        outputs->next    = NULL;
 +
 +        inputs->name    = av_strdup("out");
 +        inputs->filter_ctx = ost->output_video_filter;
 +        inputs->pad_idx = 0;
 +        inputs->next    = NULL;
 +
 +        if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, &inputs, &outputs, NULL)) < 0)
 +            return ret;
 +        av_freep(&ost->avfilter);
 +    } else {
 +        if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
 +            return ret;
 +    }
 +
 +    if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
 +        return ret;
 +
 +    codec->width  = ost->output_video_filter->inputs[0]->w;
 +    codec->height = ost->output_video_filter->inputs[0]->h;
 +    codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
 +        ost->frame_aspect_ratio ? // overridden by the -aspect cli option
 +        av_d2q(ost->frame_aspect_ratio * codec->height/codec->width, 255) :
 +        ost->output_video_filter->inputs[0]->sample_aspect_ratio;
 +
 +    return 0;
 +}
 +#endif /* CONFIG_AVFILTER */
 +
 +static void term_exit(void)
 +{
 +    av_log(NULL, AV_LOG_QUIET, "%s", "");
 +#if HAVE_TERMIOS_H
 +    if(restore_tty)
 +        tcsetattr (0, TCSANOW, &oldtty);
 +#endif
 +}
 +
 +static volatile int received_sigterm = 0;
 +
 +static void sigterm_handler(int sig)
 +{
 +    received_sigterm = sig;
 +    received_nb_signals++;
 +    term_exit();
 +    if(received_nb_signals > 3)
 +        exit(123);
 +}
 +
 +static void term_init(void)
 +{
 +#if HAVE_TERMIOS_H
 +    if(!run_as_daemon){
 +    struct termios tty;
 +
 +    if (tcgetattr (0, &tty) == 0) {
 +    oldtty = tty;
 +    restore_tty = 1;
 +    atexit(term_exit);
 +
 +    tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
 +                          |INLCR|IGNCR|ICRNL|IXON);
 +    tty.c_oflag |= OPOST;
 +    tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
 +    tty.c_cflag &= ~(CSIZE|PARENB);
 +    tty.c_cflag |= CS8;
 +    tty.c_cc[VMIN] = 1;
 +    tty.c_cc[VTIME] = 0;
 +
 +    tcsetattr (0, TCSANOW, &tty);
 +    }
 +    signal(SIGQUIT, sigterm_handler); /* Quit (POSIX).  */
 +    }
 +#endif
 +    avformat_network_deinit();
 +
 +    signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).    */
 +    signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
 +#ifdef SIGXCPU
 +    signal(SIGXCPU, sigterm_handler);
 +#endif
 +}
 +
 +/* read a key without blocking */
 +static int read_key(void)
 +{
 +    unsigned char ch;
 +#if HAVE_TERMIOS_H
 +    int n = 1;
 +    struct timeval tv;
 +    fd_set rfds;
 +
 +    FD_ZERO(&rfds);
 +    FD_SET(0, &rfds);
 +    tv.tv_sec = 0;
 +    tv.tv_usec = 0;
 +    n = select(1, &rfds, NULL, NULL, &tv);
 +    if (n > 0) {
 +        n = read(0, &ch, 1);
 +        if (n == 1)
 +            return ch;
 +
 +        return n;
 +    }
 +#elif HAVE_KBHIT
 +#    if HAVE_PEEKNAMEDPIPE
 +    static int is_pipe;
 +    static HANDLE input_handle;
 +    DWORD dw, nchars;
 +    if(!input_handle){
 +        input_handle = GetStdHandle(STD_INPUT_HANDLE);
 +        is_pipe = !GetConsoleMode(input_handle, &dw);
 +    }
 +
 +    if (stdin->_cnt > 0) {
 +        read(0, &ch, 1);
 +        return ch;
 +    }
 +    if (is_pipe) {
 +        /* When running under a GUI, you will end here. */
 +        if (!PeekNamedPipe(input_handle, NULL, 0, NULL, &nchars, NULL))
 +            return -1;
 +        //Read it
 +        if(nchars != 0) {
 +            read(0, &ch, 1);
 +            return ch;
 +        }else{
 +            return -1;
 +        }
 +    }
 +#    endif
 +    if(kbhit())
 +        return(getch());
 +#endif
 +    return -1;
 +}
 +
 +static int decode_interrupt_cb(void *ctx)
 +{
 +    return received_nb_signals > 1;
 +}
 +
 +static const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
 +
 +void av_noreturn exit_program(int ret)
 +{
 +    int i;
 +
 +    /* close files */
 +    for (i = 0; i < nb_output_files; i++) {
 +        AVFormatContext *s = output_files[i].ctx;
 +        if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
 +            avio_close(s->pb);
 +        avformat_free_context(s);
 +        av_dict_free(&output_files[i].opts);
 +    }
 +    for (i = 0; i < nb_output_streams; i++) {
 +        AVBitStreamFilterContext *bsfc = output_streams[i].bitstream_filters;
 +        while (bsfc) {
 +            AVBitStreamFilterContext *next = bsfc->next;
 +            av_bitstream_filter_close(bsfc);
 +            bsfc = next;
 +        }
 +        output_streams[i].bitstream_filters = NULL;
 +
 +        if (output_streams[i].output_frame) {
 +            AVFrame *frame = output_streams[i].output_frame;
 +            if (frame->extended_data != frame->data)
 +                av_freep(&frame->extended_data);
 +            av_freep(&frame);
 +        }
 +    }
 +    for (i = 0; i < nb_input_files; i++) {
 +        avformat_close_input(&input_files[i].ctx);
 +    }
 +    for (i = 0; i < nb_input_streams; i++) {
 +        av_freep(&input_streams[i].decoded_frame);
 +        av_freep(&input_streams[i].filtered_frame);
 +        av_dict_free(&input_streams[i].opts);
 +        free_buffer_pool(&input_streams[i]);
 +    }
 +
 +    if (vstats_file)
 +        fclose(vstats_file);
 +    av_free(vstats_filename);
 +
 +    av_freep(&input_streams);
 +    av_freep(&input_files);
 +    av_freep(&output_streams);
 +    av_freep(&output_files);
 +
 +    uninit_opts();
 +    av_free(audio_buf);
 +    allocated_audio_buf_size = 0;
 +
 +#if CONFIG_AVFILTER
 +    avfilter_uninit();
 +#endif
 +    avformat_network_deinit();
 +
 +    av_freep(&input_tmp);
 +
 +    if (received_sigterm) {
 +        av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
 +               (int) received_sigterm);
 +        exit (255);
 +    }
 +
 +    exit(ret); /* not all OS-es handle main() return value */
 +}
 +
 +static 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 assert_codec_experimental(AVCodecContext *c, int encoder)
 +{
 +    const char *codec_string = encoder ? "encoder" : "decoder";
 +    AVCodec *codec;
 +    if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
 +        c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
 +        av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
 +                "results.\nAdd '-strict experimental' if you want to use it.\n",
 +                codec_string, c->codec->name);
 +        codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
 +        if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
 +            av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
 +                   codec_string, codec->name);
 +        exit_program(1);
 +    }
 +}
 +
 +static void choose_sample_fmt(AVStream *st, AVCodec *codec)
 +{
 +    if (codec && codec->sample_fmts) {
 +        const enum AVSampleFormat *p = codec->sample_fmts;
 +        for (; *p != -1; p++) {
 +            if (*p == st->codec->sample_fmt)
 +                break;
 +        }
 +        if (*p == -1) {
 +            if((codec->capabilities & CODEC_CAP_LOSSLESS) && av_get_sample_fmt_name(st->codec->sample_fmt) > av_get_sample_fmt_name(codec->sample_fmts[0]))
 +                av_log(NULL, AV_LOG_ERROR, "Conversion will not be lossless.\n");
 +            if(av_get_sample_fmt_name(st->codec->sample_fmt))
 +            av_log(NULL, AV_LOG_WARNING,
 +                   "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
 +                   av_get_sample_fmt_name(st->codec->sample_fmt),
 +                   codec->name,
 +                   av_get_sample_fmt_name(codec->sample_fmts[0]));
 +            st->codec->sample_fmt = codec->sample_fmts[0];
 +        }
 +    }
 +}
 +
 +static void choose_sample_rate(AVStream *st, AVCodec *codec)
 +{
 +    if (codec && codec->supported_samplerates) {
 +        const int *p  = codec->supported_samplerates;
 +        int best      = 0;
 +        int best_dist = INT_MAX;
 +        for (; *p; p++) {
 +            int dist = abs(st->codec->sample_rate - *p);
 +            if (dist < best_dist) {
 +                best_dist = dist;
 +                best      = *p;
 +            }
 +        }
 +        if (best_dist) {
 +            av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
 +        }
 +        st->codec->sample_rate = best;
 +    }
 +}
 +
 +static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
 +{
 +    if (codec && codec->pix_fmts) {
 +        const enum PixelFormat *p = codec->pix_fmts;
 +        int has_alpha= av_pix_fmt_descriptors[st->codec->pix_fmt].nb_components % 2 == 0;
 +        enum PixelFormat best= PIX_FMT_NONE;
 +        if (st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL) {
 +            if (st->codec->codec_id == CODEC_ID_MJPEG) {
 +                p = (const enum PixelFormat[]) { PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE };
 +            } else if (st->codec->codec_id == CODEC_ID_LJPEG) {
 +                p = (const enum PixelFormat[]) { PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUVJ444P, PIX_FMT_YUV420P,
 +                                                 PIX_FMT_YUV422P, PIX_FMT_YUV444P, PIX_FMT_BGRA, PIX_FMT_NONE };
 +            }
 +        }
 +        for (; *p != PIX_FMT_NONE; p++) {
 +            best= avcodec_find_best_pix_fmt2(best, *p, st->codec->pix_fmt, has_alpha, NULL);
 +            if (*p == st->codec->pix_fmt)
 +                break;
 +        }
 +        if (*p == PIX_FMT_NONE) {
 +            if (st->codec->pix_fmt != PIX_FMT_NONE)
 +                av_log(NULL, AV_LOG_WARNING,
 +                       "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
 +                       av_pix_fmt_descriptors[st->codec->pix_fmt].name,
 +                       codec->name,
 +                       av_pix_fmt_descriptors[best].name);
 +            st->codec->pix_fmt = best;
 +        }
 +    }
 +}
 +
 +static double
 +get_sync_ipts(const OutputStream *ost, int64_t pts)
 +{
 +    OutputFile *of = &output_files[ost->file_index];
 +    return (double)(pts - of->start_time) / AV_TIME_BASE;
 +}
 +
 +static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
 +{
 +    AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
 +    AVCodecContext          *avctx = ost->st->codec;
 +    int ret;
 +
 +    /*
 +     * 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)
 +            return;
 +        ost->frame_number++;
 +    }
 +
 +    while (bsfc) {
 +        AVPacket new_pkt = *pkt;
 +        int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
 +                                           &new_pkt.data, &new_pkt.size,
 +                                           pkt->data, pkt->size,
 +                                           pkt->flags & AV_PKT_FLAG_KEY);
 +        if (a > 0) {
 +            av_free_packet(pkt);
 +            new_pkt.destruct = av_destruct_packet;
 +        } else if (a < 0) {
 +            av_log(NULL, AV_LOG_ERROR, "Failed to open bitstream filter %s for stream %d with codec %s",
 +                   bsfc->filter->name, pkt->stream_index,
 +                   avctx->codec ? avctx->codec->name : "copy");
 +            print_error("", a);
 +            if (exit_on_error)
 +                exit_program(1);
 +        }
 +        *pkt = new_pkt;
 +
 +        bsfc = bsfc->next;
 +    }
 +
 +    pkt->stream_index = ost->index;
 +    ret = av_interleaved_write_frame(s, pkt);
 +    if (ret < 0) {
 +        print_error("av_interleaved_write_frame()", ret);
 +        exit_program(1);
 +    }
 +}
 +
 +static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
 +{
 +    int fill_char = 0x00;
 +    if (sample_fmt == AV_SAMPLE_FMT_U8)
 +        fill_char = 0x80;
 +    memset(buf, fill_char, size);
 +}
 +
 +static int encode_audio_frame(AVFormatContext *s, OutputStream *ost,
 +                              const uint8_t *buf, int buf_size)
 +{
 +    AVCodecContext *enc = ost->st->codec;
 +    AVFrame *frame = NULL;
 +    AVPacket pkt;
 +    int ret, got_packet;
 +
 +    av_init_packet(&pkt);
 +    pkt.data = NULL;
 +    pkt.size = 0;
 +
 +    if (buf) {
 +        if (!ost->output_frame) {
 +            ost->output_frame = avcodec_alloc_frame();
 +            if (!ost->output_frame) {
 +                av_log(NULL, AV_LOG_FATAL, "out-of-memory in encode_audio_frame()\n");
 +                exit_program(1);
 +            }
 +        }
 +        frame = ost->output_frame;
 +        if (frame->extended_data != frame->data)
 +            av_freep(&frame->extended_data);
 +        avcodec_get_frame_defaults(frame);
 +
 +        frame->nb_samples  = buf_size /
 +                             (enc->channels * av_get_bytes_per_sample(enc->sample_fmt));
 +        if ((ret = avcodec_fill_audio_frame(frame, enc->channels, enc->sample_fmt,
 +                                            buf, buf_size, 1)) < 0) {
 +            av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
 +            exit_program(1);
 +        }
 +
 +        ost->sync_opts += frame->nb_samples;
 +    }
 +
 +    got_packet = 0;
 +    if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
 +        av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
 +        exit_program(1);
 +    }
 +
 +    ret = pkt.size;
 +
 +    if (got_packet) {
 +        if (pkt.pts != AV_NOPTS_VALUE)
 +            pkt.pts      = av_rescale_q(pkt.pts,      enc->time_base, ost->st->time_base);
 +        if (pkt.dts != AV_NOPTS_VALUE)
 +            pkt.dts      = av_rescale_q(pkt.dts,      enc->time_base, ost->st->time_base);
 +        if (pkt.duration > 0)
 +            pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
 +
 +        write_frame(s, &pkt, ost);
 +
 +        audio_size += pkt.size;
 +
 +        av_free_packet(&pkt);
 +    }
 +
 +    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));
 +    }
 +
 +    return ret;
 +}
 +
 +static void do_audio_out(AVFormatContext *s, OutputStream *ost,
 +                         InputStream *ist, AVFrame *decoded_frame)
 +{
 +    uint8_t *buftmp;
 +    int64_t audio_buf_size, size_out;
 +
 +    int frame_bytes, resample_changed;
 +    AVCodecContext *enc = ost->st->codec;
 +    AVCodecContext *dec = ist->st->codec;
 +    int osize = av_get_bytes_per_sample(enc->sample_fmt);
 +    int isize = av_get_bytes_per_sample(dec->sample_fmt);
 +    uint8_t *buf = decoded_frame->data[0];
 +    int size     = decoded_frame->nb_samples * dec->channels * isize;
 +    int64_t allocated_for_size = size;
 +
 +need_realloc:
 +    audio_buf_size  = (allocated_for_size + isize * dec->channels - 1) / (isize * dec->channels);
 +    audio_buf_size  = (audio_buf_size * enc->sample_rate + dec->sample_rate) / dec->sample_rate;
 +    audio_buf_size  = audio_buf_size * 2 + 10000; // safety factors for the deprecated resampling API
 +    audio_buf_size  = FFMAX(audio_buf_size, enc->frame_size);
 +    audio_buf_size *= osize * enc->channels;
 +
 +    if (audio_buf_size > INT_MAX) {
 +        av_log(NULL, AV_LOG_FATAL, "Buffer sizes too large\n");
 +        exit_program(1);
 +    }
 +
 +    av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
 +    if (!audio_buf) {
 +        av_log(NULL, AV_LOG_FATAL, "Out of memory in do_audio_out\n");
 +        exit_program(1);
 +    }
 +
 +    if (enc->channels != dec->channels
 +     || enc->sample_fmt != dec->sample_fmt
 +     || enc->sample_rate!= dec->sample_rate
 +    )
 +        ost->audio_resample = 1;
 +
 +    resample_changed = ost->resample_sample_fmt  != dec->sample_fmt ||
 +                       ost->resample_channels    != dec->channels   ||
 +                       ost->resample_sample_rate != dec->sample_rate;
 +
 +    if ((ost->audio_resample && !ost->swr) || resample_changed || ost->audio_channels_mapped) {
 +        if (resample_changed) {
 +            av_log(NULL, AV_LOG_INFO, "Input stream #%d:%d frame changed from rate:%d fmt:%s ch:%d to rate:%d fmt:%s ch:%d\n",
 +                   ist->file_index, ist->st->index,
 +                   ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
 +                   dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
 +            ost->resample_sample_fmt  = dec->sample_fmt;
 +            ost->resample_channels    = dec->channels;
 +            ost->resample_sample_rate = dec->sample_rate;
 +            swr_free(&ost->swr);
 +        }
 +        /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
 +        if (audio_sync_method <= 1 && !ost->audio_channels_mapped &&
 +            ost->resample_sample_fmt  == enc->sample_fmt &&
 +            ost->resample_channels    == enc->channels   &&
 +            ost->resample_sample_rate == enc->sample_rate) {
 +            //ost->swr = NULL;
 +            ost->audio_resample = 0;
 +        } else {
 +            ost->swr = swr_alloc_set_opts(ost->swr,
 +                                          enc->channel_layout, enc->sample_fmt, enc->sample_rate,
 +                                          dec->channel_layout, dec->sample_fmt, dec->sample_rate,
 +                                          0, NULL);
 +            if (ost->audio_channels_mapped)
 +                swr_set_channel_mapping(ost->swr, ost->audio_channels_map);
 +            av_opt_set_double(ost->swr, "rmvol", ost->rematrix_volume, 0);
 +            if (ost->audio_channels_mapped) {
 +                av_opt_set_int(ost->swr, "icl", av_get_default_channel_layout(ost->audio_channels_mapped), 0);
 +                av_opt_set_int(ost->swr, "uch", ost->audio_channels_mapped, 0);
 +            }
 +            if (av_opt_set_int(ost->swr, "ich", dec->channels, 0) < 0) {
 +                av_log(NULL, AV_LOG_FATAL, "Unsupported number of input channels\n");
 +                exit_program(1);
 +            }
 +            if (av_opt_set_int(ost->swr, "och", enc->channels, 0) < 0) {
 +                av_log(NULL, AV_LOG_FATAL, "Unsupported number of output channels\n");
 +                exit_program(1);
 +            }
 +            if(audio_sync_method>1) av_opt_set_int(ost->swr, "flags", SWR_FLAG_RESAMPLE, 0);
 +            if(ost->swr && swr_init(ost->swr) < 0){
 +                av_log(NULL, AV_LOG_FATAL, "swr_init() failed\n");
 +                swr_free(&ost->swr);
 +            }
 +
 +            if (!ost->swr) {
 +                av_log(NULL, AV_LOG_FATAL, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
 +                        dec->channels, dec->sample_rate,
 +                        enc->channels, enc->sample_rate);
 +                exit_program(1);
 +            }
 +        }
 +    }
 +
 +    av_assert0(ost->audio_resample || dec->sample_fmt==enc->sample_fmt);
 +
 +    if (audio_sync_method) {
 +        double delta = get_sync_ipts(ost, ist->pts) * enc->sample_rate - ost->sync_opts -
 +                       av_fifo_size(ost->fifo) / (enc->channels * osize);
 +        int idelta = delta * dec->sample_rate / enc->sample_rate;
 +        int byte_delta = idelta * isize * dec->channels;
 +
 +        // FIXME resample delay
 +        if (fabs(delta) > 50) {
 +            if (ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate) {
 +                if (byte_delta < 0) {
 +                    byte_delta = FFMAX(byte_delta, -size);
 +                    size += byte_delta;
 +                    buf  -= byte_delta;
 +                    av_log(NULL, AV_LOG_VERBOSE, "discarding %d audio samples\n",
 +                           -byte_delta / (isize * dec->channels));
 +                    if (!size)
 +                        return;
 +                    ist->is_start = 0;
 +                } else {
 +                    input_tmp = av_realloc(input_tmp, byte_delta + size);
 +
 +                    if (byte_delta > allocated_for_size - size) {
 +                        allocated_for_size = byte_delta + (int64_t)size;
 +                        goto need_realloc;
 +                    }
 +                    ist->is_start = 0;
 +
 +                    generate_silence(input_tmp, dec->sample_fmt, byte_delta);
 +                    memcpy(input_tmp + byte_delta, buf, size);
 +                    buf = input_tmp;
 +                    size += byte_delta;
 +                    av_log(NULL, AV_LOG_VERBOSE, "adding %d audio samples of silence\n", idelta);
 +                }
 +            } else if (audio_sync_method > 1) {
 +                int comp = av_clip(delta, -audio_sync_method, audio_sync_method);
 +                av_assert0(ost->audio_resample);
 +                av_log(NULL, AV_LOG_VERBOSE, "compensating audio timestamp drift:%f compensation:%d in:%d\n",
 +                       delta, comp, enc->sample_rate);
 +//                fprintf(stderr, "drift:%f len:%d opts:%"PRId64" ipts:%"PRId64" fifo:%d\n", delta, -1, ost->sync_opts, (int64_t)(get_sync_ipts(ost) * enc->sample_rate), av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2));
 +                swr_set_compensation(ost->swr, comp, enc->sample_rate);
 +            }
 +        }
 +    } else
 +        ost->sync_opts = lrintf(get_sync_ipts(ost, ist->pts) * enc->sample_rate) -
 +                                av_fifo_size(ost->fifo) / (enc->channels * osize); // FIXME wrong
 +
 +    if (ost->audio_resample || ost->audio_channels_mapped) {
 +        buftmp = audio_buf;
 +        size_out = swr_convert(ost->swr, (      uint8_t*[]){buftmp}, audio_buf_size / (enc->channels * osize),
 +                                         (const uint8_t*[]){buf   }, size / (dec->channels * isize));
 +        size_out = size_out * enc->channels * osize;
 +    } else {
 +        buftmp = buf;
 +        size_out = size;
 +    }
 +
 +    av_assert0(ost->audio_resample || dec->sample_fmt==enc->sample_fmt);
 +
 +    /* now encode as many frames as possible */
 +    if (!(enc->codec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE)) {
 +        /* output resampled raw samples */
 +        if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
 +            av_log(NULL, AV_LOG_FATAL, "av_fifo_realloc2() failed\n");
 +            exit_program(1);
 +        }
 +        av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
 +
 +        frame_bytes = enc->frame_size * osize * enc->channels;
 +
 +        while (av_fifo_size(ost->fifo) >= frame_bytes) {
 +            av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
 +            encode_audio_frame(s, ost, audio_buf, frame_bytes);
 +        }
 +    } else {
 +        encode_audio_frame(s, ost, buftmp, size_out);
 +    }
 +}
 +
 +static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
 +{
 +    AVCodecContext *dec;
 +    AVPicture *picture2;
 +    AVPicture picture_tmp;
 +    uint8_t *buf = 0;
 +
 +    dec = ist->st->codec;
 +
 +    /* deinterlace : must be done before any resize */
 +    if (do_deinterlace) {
 +        int size;
 +
 +        /* create temporary picture */
 +        size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
 +        buf  = av_malloc(size);
 +        if (!buf)
 +            return;
 +
 +        picture2 = &picture_tmp;
 +        avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
 +
 +        if (avpicture_deinterlace(picture2, picture,
 +                                 dec->pix_fmt, dec->width, dec->height) < 0) {
 +            /* if error, do not deinterlace */
 +            av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n");
 +            av_free(buf);
 +            buf = NULL;
 +            picture2 = picture;
 +        }
 +    } else {
 +        picture2 = picture;
 +    }
 +
 +    if (picture != picture2)
 +        *picture = *picture2;
 +    *bufp = buf;
 +}
 +
 +static void do_subtitle_out(AVFormatContext *s,
 +                            OutputStream *ost,
 +                            InputStream *ist,
 +                            AVSubtitle *sub,
 +                            int64_t pts)
 +{
 +    static uint8_t *subtitle_out = NULL;
 +    int subtitle_out_max_size = 1024 * 1024;
 +    int subtitle_out_size, nb, i;
 +    AVCodecContext *enc;
 +    AVPacket pkt;
 +
 +    if (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->st->codec;
 +
 +    if (!subtitle_out) {
 +        subtitle_out = av_malloc(subtitle_out_max_size);
 +    }
 +
 +    /* Note: DVB subtitle need one packet to draw them and one other
 +       packet to clear them */
 +    /* XXX: signal it in the codec context ? */
 +    if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
 +        nb = 2;
 +    else
 +        nb = 1;
 +
 +    for (i = 0; i < nb; i++) {
 +        ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
 +
 +        sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
 +        // 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;
 +        subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
 +                                                    subtitle_out_max_size, sub);
 +        if (subtitle_out_size < 0) {
 +            av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
 +            exit_program(1);
 +        }
 +
 +        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);
 +        if (enc->codec_id == 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;
 +        }
 +        write_frame(s, &pkt, ost);
 +    }
 +}
 +
 +static void do_video_resample(OutputStream *ost,
 +                              InputStream *ist,
 +                              AVFrame *in_picture,
 +                              AVFrame **out_picture)
 +{
 +#if CONFIG_AVFILTER
 +    *out_picture = in_picture;
 +#else
 +    AVCodecContext *dec = ist->st->codec;
 +    AVCodecContext *enc = ost->st->codec;
 +    int resample_changed = ost->resample_width   != in_picture->width  ||
 +                           ost->resample_height  != in_picture->height ||
 +                           ost->resample_pix_fmt != in_picture->format;
 +
 +    *out_picture = in_picture;
 +    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 / frm size:%dx%d fmt:%s\n",
 +               ist->file_index, ist->st->index,
 +               ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
 +               dec->width         , dec->height         , av_get_pix_fmt_name(dec->pix_fmt),
 +               in_picture->width, in_picture->height, av_get_pix_fmt_name(in_picture->format));
 +        ost->resample_width   = in_picture->width;
 +        ost->resample_height  = in_picture->height;
 +        ost->resample_pix_fmt = in_picture->format;
 +    }
 +
 +    ost->video_resample = in_picture->width   != enc->width  ||
 +                          in_picture->height  != enc->height ||
 +                          in_picture->format  != enc->pix_fmt;
 +
 +    if (ost->video_resample) {
 +        *out_picture = &ost->resample_frame;
 +        if (!ost->img_resample_ctx || resample_changed) {
 +            /* initialize the destination picture */
 +            if (!ost->resample_frame.data[0]) {
 +                avcodec_get_frame_defaults(&ost->resample_frame);
 +                if (avpicture_alloc((AVPicture *)&ost->resample_frame, enc->pix_fmt,
 +                                    enc->width, enc->height)) {
 +                    av_log(NULL, AV_LOG_FATAL, "Cannot allocate temp picture, check pix fmt\n");
 +                    exit_program(1);
 +                }
 +            }
 +            /* initialize a new scaler context */
 +            sws_freeContext(ost->img_resample_ctx);
 +            ost->img_resample_ctx = sws_getContext(in_picture->width, in_picture->height, in_picture->format,
 +                                                   enc->width, enc->height, enc->pix_fmt,
 +                                                   ost->sws_flags, NULL, NULL, NULL);
 +            if (ost->img_resample_ctx == NULL) {
 +                av_log(NULL, AV_LOG_FATAL, "Cannot get resampling context\n");
 +                exit_program(1);
 +            }
 +        }
 +        sws_scale(ost->img_resample_ctx, in_picture->data, in_picture->linesize,
 +              0, ost->resample_height, (*out_picture)->data, (*out_picture)->linesize);
 +    }
 +#endif
 +}
 +
 +static double psnr(double d)
 +{
 +    return -10.0 * log(d) / log(10.0);
 +}
 +
 +static void do_video_stats(AVFormatContext *os, OutputStream *ost,
 +                           int frame_size)
 +{
 +    AVCodecContext *enc;
 +    int frame_number;
 +    double ti1, bitrate, avg_bitrate;
 +
 +    /* this is executed just the first time do_video_stats is called */
 +    if (!vstats_file) {
 +        vstats_file = fopen(vstats_filename, "w");
 +        if (!vstats_file) {
 +            perror("fopen");
 +            exit_program(1);
 +        }
 +    }
 +
 +    enc = ost->st->codec;
 +    if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
 +        frame_number = ost->frame_number;
 +        fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
 +        if (enc->flags&CODEC_FLAG_PSNR)
 +            fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
 +
 +        fprintf(vstats_file,"f_size= %6d ", frame_size);
 +        /* compute pts value */
 +        ti1 = ost->sync_opts * av_q2d(enc->time_base);
 +        if (ti1 < 0.01)
 +            ti1 = 0.01;
 +
 +        bitrate     = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
 +        avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
 +        fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
 +               (double)video_size / 1024, ti1, bitrate, avg_bitrate);
 +        fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
 +    }
 +}
 +
 +
 +static void do_video_out(AVFormatContext *s, OutputStream *ost,
 +                         InputStream *ist, AVFrame *in_picture)
 +{
 +    int nb_frames, i, ret, format_video_sync;
 +    AVFrame *final_picture;
 +    AVCodecContext *enc;
 +    double sync_ipts;
 +    double duration = 0;
 +    int frame_size = 0;
 +    float quality = same_quant ? in_picture->quality
 +                               : ost->st->codec->global_quality;
 +
 +    enc = ost->st->codec;
 +
 +    if (ist->st->start_time != AV_NOPTS_VALUE && ist->st->first_dts != AV_NOPTS_VALUE) {
 +        duration = FFMAX(av_q2d(ist->st->time_base), av_q2d(ist->st->codec->time_base));
 +        if(ist->st->avg_frame_rate.num)
 +            duration= FFMAX(duration, 1/av_q2d(ist->st->avg_frame_rate));
 +
 +        duration /= av_q2d(enc->time_base);
 +    }
 +
 +    sync_ipts = get_sync_ipts(ost, in_picture->pts) / av_q2d(enc->time_base);
 +
 +    /* by default, we output a single frame */
 +    nb_frames = 1;
 +
 +    format_video_sync = video_sync_method;
 +    if (format_video_sync == VSYNC_AUTO)
 +        format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? ((s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH : VSYNC_VFR) : 1;
 +
 +    if (format_video_sync != VSYNC_PASSTHROUGH && format_video_sync != VSYNC_DROP) {
 +        double vdelta = sync_ipts - ost->sync_opts + duration;
 +        // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
 +        if (vdelta < -1.1)
 +            nb_frames = 0;
 +        else if (format_video_sync == VSYNC_VFR) {
 +            if (vdelta <= -0.6) {
 +                nb_frames = 0;
 +            } else if (vdelta > 0.6)
 +                ost->sync_opts = lrintf(sync_ipts);
 +        } else if (vdelta > 1.1)
 +            nb_frames = lrintf(vdelta);
 +        if (nb_frames == 0) {
 +            ++nb_frames_drop;
 +            av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
 +        } else if (nb_frames > 1) {
 +            nb_frames_dup += nb_frames - 1;
 +            av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
 +        }
 +    } else
 +        ost->sync_opts = lrintf(sync_ipts);
 +
 +    nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
 +    if (nb_frames <= 0)
 +        return;
 +
 +    do_video_resample(ost, ist, in_picture, &final_picture);
 +
 +    /* duplicates frame if needed */
 +    for (i = 0; i < nb_frames; i++) {
 +        AVPacket pkt;
 +        av_init_packet(&pkt);
 +        pkt.data = NULL;
 +        pkt.size = 0;
 +
 +        if (s->oformat->flags & AVFMT_RAWPICTURE &&
 +            enc->codec->id == CODEC_ID_RAWVIDEO) {
 +            /* raw pictures are written as AVPicture structure to
 +               avoid any copies. We support temporarily the older
 +               method. */
 +            enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
 +            enc->coded_frame->top_field_first  = in_picture->top_field_first;
 +            pkt.data   = (uint8_t *)final_picture;
 +            pkt.size   =  sizeof(AVPicture);
 +            pkt.pts    = av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
 +            pkt.flags |= AV_PKT_FLAG_KEY;
 +
 +            write_frame(s, &pkt, ost);
 +        } else {
 +            int got_packet;
 +            AVFrame big_picture;
 +
 +            big_picture = *final_picture;
 +            /* better than nothing: use input picture interlaced
 +               settings */
 +            big_picture.interlaced_frame = in_picture->interlaced_frame;
 +            if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
 +                if (ost->top_field_first == -1)
 +                    big_picture.top_field_first = in_picture->top_field_first;
 +                else
 +                    big_picture.top_field_first = !!ost->top_field_first;
 +            }
 +
 +            /* handles same_quant here. This is not correct because it may
 +               not be a global option */
 +            big_picture.quality = quality;
 +            if (!enc->me_threshold)
 +                big_picture.pict_type = 0;
 +            big_picture.pts = ost->sync_opts;
 +            if (ost->forced_kf_index < ost->forced_kf_count &&
 +                big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
 +                big_picture.pict_type = AV_PICTURE_TYPE_I;
 +                ost->forced_kf_index++;
 +            }
 +            ret = avcodec_encode_video2(enc, &pkt, &big_picture, &got_packet);
 +            if (ret < 0) {
 +                av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
 +                exit_program(1);
 +            }
 +
 +            if (got_packet) {
 +                if (pkt.pts == AV_NOPTS_VALUE && !(enc->codec->capabilities & CODEC_CAP_DELAY))
 +                    pkt.pts = ost->sync_opts;
 +
 +                if (pkt.pts != AV_NOPTS_VALUE)
 +                    pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
 +                if (pkt.dts != AV_NOPTS_VALUE)
 +                    pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
 +
 +                if (debug_ts) {
 +                    av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
 +                           "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
 +                           av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
 +                           av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
 +                }
 +
 +                if (format_video_sync == VSYNC_DROP)
 +                    pkt.pts = pkt.dts = AV_NOPTS_VALUE;
 +
 +                write_frame(s, &pkt, ost);
 +                frame_size = pkt.size;
 +                video_size += pkt.size;
 +
 +                /* if two pass, output log */
 +                if (ost->logfile && enc->stats_out) {
 +                    fprintf(ost->logfile, "%s", enc->stats_out);
 +                }
 +            }
 +        }
 +        ost->sync_opts++;
 +        /*
 +         * For video, number of frames in == number of packets out.
 +         * But there may be reordering, so we can't throw away frames on encoder
 +         * flush, we need to limit them here, before they go into encoder.
 +         */
 +        ost->frame_number++;
 +    }
 +    if (vstats_filename && frame_size)
 +        do_video_stats(output_files[ost->file_index].ctx, ost, frame_size);
 +}
 +
 +static void print_report(OutputFile *output_files,
 +                         OutputStream *ost_table, int nb_ostreams,
 +                         int is_last_report, int64_t timer_start, int64_t cur_time)
 +{
 +    char buf[1024];
 +    OutputStream *ost;
 +    AVFormatContext *oc;
 +    int64_t total_size;
 +    AVCodecContext *enc;
 +    int frame_number, vid, i;
 +    double bitrate;
 +    int64_t pts = INT64_MAX;
 +    static int64_t last_time = -1;
 +    static int qp_histogram[52];
 +    int hours, mins, secs, us;
 +
 +    if (!print_stats && !is_last_report)
 +        return;
 +
 +    if (!is_last_report) {
 +        if (last_time == -1) {
 +            last_time = cur_time;
 +            return;
 +        }
 +        if ((cur_time - last_time) < 500000)
 +            return;
 +        last_time = cur_time;
 +    }
 +
 +
 +    oc = output_files[0].ctx;
 +
 +    total_size = avio_size(oc->pb);
 +    if (total_size < 0) { // FIXME improve avio_size() so it works with non seekable output too
 +        total_size = avio_tell(oc->pb);
 +        if (total_size < 0)
 +            total_size = 0;
 +    }
 +
 +    buf[0] = '\0';
 +    vid = 0;
 +    for (i = 0; i < nb_ostreams; i++) {
 +        float q = -1;
 +        ost = &ost_table[i];
 +        enc = ost->st->codec;
 +        if (!ost->stream_copy && enc->coded_frame)
 +            q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
 +        if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
 +            snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
 +        }
 +        if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
 +            float t = (cur_time-timer_start) / 1000000.0;
 +
 +            frame_number = ost->frame_number;
 +            snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
 +                     frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, 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(log(qp_histogram[j] + 1) / log(2)));
 +            }
 +            if (enc->flags&CODEC_FLAG_PSNR) {
 +                int j;
 +                double error, error_sum = 0;
 +                double scale, scale_sum = 0;
 +                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;
 +                    snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
 +                }
 +                snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
 +            }
 +            vid = 1;
 +        }
 +        /* compute min output value */
 +        pts = FFMIN(pts, av_rescale_q(ost->st->pts.val,
 +                                      ost->st->time_base, AV_TIME_BASE_Q));
 +    }
 +
 +    secs = pts / AV_TIME_BASE;
 +    us = pts % AV_TIME_BASE;
 +    mins = secs / 60;
 +    secs %= 60;
 +    hours = mins / 60;
 +    mins %= 60;
 +
 +    bitrate = pts ? total_size * 8 / (pts / 1000.0) : 0;
 +
 +    snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
 +             "size=%8.0fkB time=", total_size / 1024.0);
 +    snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
 +             "%02d:%02d:%02d.%02d ", hours, mins, secs,
 +             (100 * us) / AV_TIME_BASE);
 +    snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
 +             "bitrate=%6.1fkbits/s", bitrate);
 +
 +    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_log(NULL, AV_LOG_INFO, "%s    \r", buf);
 +
 +    fflush(stderr);
 +
 +    if (is_last_report) {
 +        int64_t raw= audio_size + video_size + extra_size;
 +        av_log(NULL, AV_LOG_INFO, "\n");
 +        av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
 +               video_size / 1024.0,
 +               audio_size / 1024.0,
 +               extra_size / 1024.0,
 +               100.0 * (total_size - raw) / raw
 +        );
 +        if(video_size + audio_size + extra_size == 0){
 +            av_log(NULL, AV_LOG_WARNING, "Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)\n");
 +        }
 +    }
 +}
 +
 +static void flush_encoders(OutputStream *ost_table, int nb_ostreams)
 +{
 +    int i, ret;
 +
 +    for (i = 0; i < nb_ostreams; i++) {
 +        OutputStream   *ost = &ost_table[i];
 +        AVCodecContext *enc = ost->st->codec;
 +        AVFormatContext *os = output_files[ost->file_index].ctx;
 +        int stop_encoding = 0;
 +
 +        if (!ost->encoding_needed)
 +            continue;
 +
 +        if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
 +            continue;
 +        if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == CODEC_ID_RAWVIDEO)
 +            continue;
 +
 +        for (;;) {
 +            AVPacket pkt;
 +            int fifo_bytes, got_packet;
 +            av_init_packet(&pkt);
 +            pkt.data = NULL;
 +            pkt.size = 0;
 +
 +            switch (ost->st->codec->codec_type) {
 +            case AVMEDIA_TYPE_AUDIO:
 +                fifo_bytes = av_fifo_size(ost->fifo);
 +                if (fifo_bytes > 0) {
 +                    /* encode any samples remaining in fifo */
 +                    int frame_bytes = fifo_bytes;
 +
 +                    av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
 +
 +                    /* pad last frame with silence if needed */
 +                    if (!(enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME)) {
 +                        frame_bytes = enc->frame_size * enc->channels *
 +                                      av_get_bytes_per_sample(enc->sample_fmt);
 +                        if (allocated_audio_buf_size < frame_bytes)
 +                            exit_program(1);
 +                        generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
 +                    }
 +                    encode_audio_frame(os, ost, audio_buf, frame_bytes);
 +                } else {
 +                    /* flush encoder with NULL frames until it is done
 +                       returning packets */
 +                    if (encode_audio_frame(os, ost, NULL, 0) == 0) {
 +                        stop_encoding = 1;
 +                        break;
 +                    }
 +                }
 +                break;
 +            case AVMEDIA_TYPE_VIDEO:
 +                ret = avcodec_encode_video2(enc, &pkt, NULL, &got_packet);
 +                if (ret < 0) {
 +                    av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
 +                    exit_program(1);
 +                }
 +                video_size += pkt.size;
 +                if (ost->logfile && enc->stats_out) {
 +                    fprintf(ost->logfile, "%s", enc->stats_out);
 +                }
 +                if (!got_packet) {
 +                    stop_encoding = 1;
 +                    break;
 +                }
 +                if (pkt.pts != AV_NOPTS_VALUE)
 +                    pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
 +                if (pkt.dts != AV_NOPTS_VALUE)
 +                    pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
 +                write_frame(os, &pkt, ost);
 +                break;
 +            default:
 +                stop_encoding = 1;
 +            }
 +            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  = ist - input_streams;
 +
 +    if (ost->source_index != ist_index)
 +        return 0;
 +
 +    if (of->start_time && ist->pts < of->start_time)
 +        return 0;
 +
 +    if (of->recording_time != INT64_MAX &&
 +        av_compare_ts(ist->pts, AV_TIME_BASE_Q, of->recording_time + of->start_time,
 +                      (AVRational){ 1, 1000000 }) >= 0) {
 +        ost->is_past_recording_time = 1;
 +        return 0;
 +    }
 +
 +    return 1;
 +}
 +
 +static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
 +{
 +    OutputFile *of = &output_files[ost->file_index];
 +    int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
 +    AVPicture pict;
 +    AVPacket opkt;
 +
 +    av_init_packet(&opkt);
 +
 +    if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
 +        !ost->copy_initial_nonkeyframes)
 +        return;
 +
 +    /* force the input stream PTS */
 +    if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
 +        audio_size += pkt->size;
 +    else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
 +        video_size += pkt->size;
 +        ost->sync_opts++;
 +    }
 +
 +    if (pkt->pts != AV_NOPTS_VALUE)
 +        opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
 +    else
 +        opkt.pts = AV_NOPTS_VALUE;
 +
 +    if (pkt->dts == AV_NOPTS_VALUE)
 +        opkt.dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ost->st->time_base);
 +    else
 +        opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
 +    opkt.dts -= ost_tb_start_time;
 +
 +    opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
 +    opkt.flags    = pkt->flags;
 +
 +    // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
 +    if (  ost->st->codec->codec_id != CODEC_ID_H264
 +       && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
 +       && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
++       && ost->st->codec->codec_id != CODEC_ID_VC1
 +       ) {
 +        if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY))
 +            opkt.destruct = av_destruct_packet;
 +    } else {
 +        opkt.data = pkt->data;
 +        opkt.size = pkt->size;
 +    }
 +    if (of->ctx->oformat->flags & AVFMT_RAWPICTURE) {
 +        /* store AVPicture in AVPacket, as expected by the output format */
 +        avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
 +        opkt.data = (uint8_t *)&pict;
 +        opkt.size = sizeof(AVPicture);
 +        opkt.flags |= AV_PKT_FLAG_KEY;
 +    }
 +
 +    write_frame(of->ctx, &opkt, ost);
 +    ost->st->codec->frame_number++;
 +    av_free_packet(&opkt);
 +}
 +
 +static void rate_emu_sleep(InputStream *ist)
 +{
 +    if (input_files[ist->file_index].rate_emu) {
 +        int64_t pts = av_rescale(ist->dts, 1000000, AV_TIME_BASE);
 +        int64_t now = av_gettime() - ist->start;
 +        if (pts > now)
 +            usleep(pts - now);
 +    }
 +}
 +
 +static int transcode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
 +{
 +    AVFrame *decoded_frame;
 +    AVCodecContext *avctx = ist->st->codec;
 +    int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
 +    int i, ret;
 +
 +    if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
 +        return AVERROR(ENOMEM);
 +    else
 +        avcodec_get_frame_defaults(ist->decoded_frame);
 +    decoded_frame = ist->decoded_frame;
 +
 +    ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
 +    if (ret < 0) {
 +        return ret;
 +    }
 +
 +    if (!*got_output) {
 +        /* no audio frame */
 +        return ret;
 +    }
 +
 +    /* 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 = decoded_frame->pts;
 +
 +    /* 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;
 +
 +
 +    // preprocess audio (volume)
 +    if (audio_volume != 256) {
 +        int decoded_data_size = decoded_frame->nb_samples * avctx->channels * bps;
 +        void *samples = decoded_frame->data[0];
 +        switch (avctx->sample_fmt) {
 +        case AV_SAMPLE_FMT_U8:
 +        {
 +            uint8_t *volp = samples;
 +            for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
 +                int v = (((*volp - 128) * audio_volume + 128) >> 8) + 128;
 +                *volp++ = av_clip_uint8(v);
 +            }
 +            break;
 +        }
 +        case AV_SAMPLE_FMT_S16:
 +        {
 +            int16_t *volp = samples;
 +            for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
 +                int v = ((*volp) * audio_volume + 128) >> 8;
 +                *volp++ = av_clip_int16(v);
 +            }
 +            break;
 +        }
 +        case AV_SAMPLE_FMT_S32:
 +        {
 +            int32_t *volp = samples;
 +            for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
 +                int64_t v = (((int64_t)*volp * audio_volume + 128) >> 8);
 +                *volp++ = av_clipl_int32(v);
 +            }
 +            break;
 +        }
 +        case AV_SAMPLE_FMT_FLT:
 +        {
 +            float *volp = samples;
 +            float scale = audio_volume / 256.f;
 +            for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
 +                *volp++ *= scale;
 +            }
 +            break;
 +        }
 +        case AV_SAMPLE_FMT_DBL:
 +        {
 +            double *volp = samples;
 +            double scale = audio_volume / 256.;
 +            for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
 +                *volp++ *= scale;
 +            }
 +            break;
 +        }
 +        default:
 +            av_log(NULL, AV_LOG_FATAL,
 +                   "Audio volume adjustment on sample format %s is not supported.\n",
 +                   av_get_sample_fmt_name(ist->st->codec->sample_fmt));
 +            exit_program(1);
 +        }
 +    }
 +
 +    rate_emu_sleep(ist);
 +
 +    for (i = 0; i < nb_output_streams; i++) {
 +        OutputStream *ost = &output_streams[i];
 +
 +        if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
 +            continue;
 +        do_audio_out(output_files[ost->file_index].ctx, ost, ist, decoded_frame);
 +    }
 +
 +    return ret;
 +}
 +
 +static int transcode_video(InputStream *ist, AVPacket *pkt, int *got_output, int64_t *pkt_pts)
 +{
 +    AVFrame *decoded_frame;
 +    void *buffer_to_free = NULL;
 +    int i, ret = 0;
 +    int64_t *best_effort_timestamp;
 +    AVRational *frame_sample_aspect;
 +
 +    if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
 +        return AVERROR(ENOMEM);
 +    else
 +        avcodec_get_frame_defaults(ist->decoded_frame);
 +    decoded_frame = ist->decoded_frame;
 +    pkt->pts  = *pkt_pts;
 +    pkt->dts  = ist->dts;
 +    *pkt_pts  = AV_NOPTS_VALUE;
 +
 +    ret = avcodec_decode_video2(ist->st->codec,
 +                                decoded_frame, got_output, pkt);
 +    if (ret < 0)
 +        return ret;
 +
 +    if (!*got_output) {
 +        /* no picture yet */
 +        return ret;
 +    }
 +
 +    best_effort_timestamp= av_opt_ptr(avcodec_get_frame_class(), decoded_frame, "best_effort_timestamp");
 +    if(*best_effort_timestamp != AV_NOPTS_VALUE)
 +        ist->next_pts = ist->pts = decoded_frame->pts = *best_effort_timestamp;
 +
 +    pkt->size = 0;
 +
 +    pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
 +
 +#if CONFIG_AVFILTER
 +    frame_sample_aspect= av_opt_ptr(avcodec_get_frame_class(), decoded_frame, "sample_aspect_ratio");
 +    for(i=0;i<nb_output_streams;i++) {
 +        OutputStream *ost = ost = &output_streams[i];
 +        if(check_output_constraints(ist, ost) && ost->encoding_needed){
 +            if (!frame_sample_aspect->num)
 +                *frame_sample_aspect = ist->st->sample_aspect_ratio;
 +            decoded_frame->pts = ist->pts;
 +            if (ist->dr1 && decoded_frame->type==FF_BUFFER_TYPE_USER) {
 +                FrameBuffer      *buf = decoded_frame->opaque;
 +                AVFilterBufferRef *fb = avfilter_get_video_buffer_ref_from_arrays(
 +                                            decoded_frame->data, decoded_frame->linesize,
 +                                            AV_PERM_READ | AV_PERM_PRESERVE,
 +                                            ist->st->codec->width, ist->st->codec->height,
 +                                            ist->st->codec->pix_fmt);
 +
 +                avfilter_copy_frame_props(fb, decoded_frame);
 +                fb->buf->priv           = buf;
 +                fb->buf->free           = filter_release_buffer;
 +
 +                buf->refcount++;
 +                av_buffersrc_buffer(ost->input_video_filter, fb);
 +            } else
 +            if((av_vsrc_buffer_add_frame(ost->input_video_filter, decoded_frame, AV_VSRC_BUF_FLAG_OVERWRITE)) < 0){
 +                av_log(NULL, AV_LOG_FATAL, "Failed to inject frame into filter network\n");
 +                exit_program(1);
 +            }
 +        }
 +    }
 +#endif
 +
 +    rate_emu_sleep(ist);
 +
 +    for (i = 0; i < nb_output_streams; i++) {
 +        OutputStream *ost = &output_streams[i];
 +
 +        if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
 +            continue;
 +
 +#if CONFIG_AVFILTER
 +        while (av_buffersink_poll_frame(ost->output_video_filter)) {
 +            AVRational ist_pts_tb = ost->output_video_filter->inputs[0]->time_base;
 +            AVFrame *filtered_frame;
 +
 +            if (av_buffersink_get_buffer_ref(ost->output_video_filter, &ost->picref, 0) < 0){
 +                av_log(NULL, AV_LOG_WARNING, "AV Filter told us it has a frame available but failed to output one\n");
 +                goto cont;
 +            }
 +            if (!ist->filtered_frame && !(ist->filtered_frame = avcodec_alloc_frame())) {
 +                ret = AVERROR(ENOMEM);
 +                goto end;
 +            }
 +            filtered_frame = ist->filtered_frame;
 +            *filtered_frame= *decoded_frame; //for me_threshold
 +            avfilter_fill_frame_from_video_buffer_ref(filtered_frame, ost->picref);
 +            filtered_frame->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
 +            if (ost->picref->video && !ost->frame_aspect_ratio)
 +                ost->st->codec->sample_aspect_ratio = ost->picref->video->sample_aspect_ratio;
 +            do_video_out(output_files[ost->file_index].ctx, ost, ist, filtered_frame);
 +            cont:
 +            avfilter_unref_buffer(ost->picref);
 +        }
 +#else
 +        do_video_out(output_files[ost->file_index].ctx, ost, ist, decoded_frame);
 +#endif
 +    }
 +
 +end:
 +    av_free(buffer_to_free);
 +    return ret;
 +}
 +
 +static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
 +{
 +    AVSubtitle subtitle;
 +    int i, ret = avcodec_decode_subtitle2(ist->st->codec,
 +                                          &subtitle, got_output, pkt);
 +    if (ret < 0)
 +        return ret;
 +    if (!*got_output)
 +        return ret;
 +
 +    rate_emu_sleep(ist);
 +
 +    for (i = 0; i < nb_output_streams; i++) {
 +        OutputStream *ost = &output_streams[i];
 +
 +        if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
 +            continue;
 +
 +        do_subtitle_out(output_files[ost->file_index].ctx, ost, ist, &subtitle, pkt->pts);
 +    }
 +
 +    avsubtitle_free(&subtitle);
 +    return ret;
 +}
 +
 +/* pkt = NULL means EOF (needed to flush decoder buffers) */
 +static int output_packet(InputStream *ist,
 +                         OutputStream *ost_table, int nb_ostreams,
 +                         const AVPacket *pkt)
 +{
 +    int ret = 0, i;
 +    int got_output;
 +    int64_t pkt_pts = AV_NOPTS_VALUE;
 +
 +    AVPacket avpkt;
 +
 +    if (ist->next_dts == AV_NOPTS_VALUE)
 +        ist->next_dts = ist->dts;
 +    if (ist->next_pts == AV_NOPTS_VALUE)
 +        ist->next_pts = ist->pts;
 +
 +    if (pkt == NULL) {
 +        /* EOF handling */
 +        av_init_packet(&avpkt);
 +        avpkt.data = NULL;
 +        avpkt.size = 0;
 +        goto handle_eof;
 +    } else {
 +        avpkt = *pkt;
 +    }
 +
 +    if (pkt->dts != AV_NOPTS_VALUE) {
 +        ist->next_dts = ist->dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
 +        if (ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO || !ist->decoding_needed)
 +            ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
 +    }
 +    if(pkt->pts != AV_NOPTS_VALUE)
 +        pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
 +
 +    // while we have more to decode or while the decoder did output something on EOF
 +    while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
 +        int duration;
 +    handle_eof:
 +
 +        ist->pts = ist->next_pts;
 +        ist->dts = ist->next_dts;
 +
 +        if (avpkt.size && avpkt.size != pkt->size) {
 +            av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
 +                   "Multiple frames in a packet from stream %d\n", pkt->stream_index);
 +            ist->showed_multi_packet_warning = 1;
 +        }
 +
 +        switch (ist->st->codec->codec_type) {
 +        case AVMEDIA_TYPE_AUDIO:
 +            ret = transcode_audio    (ist, &avpkt, &got_output);
 +            break;
 +        case AVMEDIA_TYPE_VIDEO:
 +            ret = transcode_video    (ist, &avpkt, &got_output, &pkt_pts);
 +            if (avpkt.duration) {
 +                duration = av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
 +            } else if(ist->st->codec->time_base.num != 0) {
 +                int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
 +                duration = ((int64_t)AV_TIME_BASE *
 +                                ist->st->codec->time_base.num * ticks) /
 +                                ist->st->codec->time_base.den;
 +            } else
 +                duration = 0;
 +
 +            if(ist->dts != AV_NOPTS_VALUE && duration) {
 +                ist->next_dts += duration;
 +            }else
 +                ist->next_dts = AV_NOPTS_VALUE;
 +
 +            if (got_output)
 +                ist->next_pts += duration; //FIXME the duration is not correct in some cases
 +            break;
 +        case AVMEDIA_TYPE_SUBTITLE:
 +            ret = transcode_subtitles(ist, &avpkt, &got_output);
 +            break;
 +        default:
 +            return -1;
 +        }
 +
 +        if (ret < 0)
 +            return ret;
 +
 +        avpkt.dts=
 +        avpkt.pts= AV_NOPTS_VALUE;
 +
 +        // touch data and size only if not EOF
 +        if (pkt) {
 +            if(ist->st->codec->codec_type != AVMEDIA_TYPE_AUDIO)
 +                ret = avpkt.size;
 +            avpkt.data += ret;
 +            avpkt.size -= ret;
 +        }
 +        if (!got_output) {
 +            continue;
 +        }
 +    }
 +
 +    /* handle stream copy */
 +    if (!ist->decoding_needed) {
 +        rate_emu_sleep(ist);
 +        ist->dts = ist->next_dts;
 +        switch (ist->st->codec->codec_type) {
 +        case AVMEDIA_TYPE_AUDIO:
 +            ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
 +                             ist->st->codec->sample_rate;
 +            break;
 +        case AVMEDIA_TYPE_VIDEO:
 +            if (pkt->duration) {
 +                ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
 +            } else if(ist->st->codec->time_base.num != 0) {
 +                int ticks= ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
 +                ist->next_dts += ((int64_t)AV_TIME_BASE *
 +                                  ist->st->codec->time_base.num * ticks) /
 +                                  ist->st->codec->time_base.den;
 +            }
 +            break;
 +        }
 +        ist->pts = ist->dts;
 +        ist->next_pts = ist->next_dts;
 +    }
 +    for (i = 0; pkt && i < nb_ostreams; i++) {
 +        OutputStream *ost = &ost_table[i];
 +
 +        if (!check_output_constraints(ist, ost) || ost->encoding_needed)
 +            continue;
 +
 +        do_streamcopy(ist, ost, pkt);
 +    }
 +
 +    return 0;
 +}
 +
 +static void print_sdp(OutputFile *output_files, int n)
 +{
 +    char sdp[2048];
 +    int i;
 +    AVFormatContext **avc = av_malloc(sizeof(*avc) * n);
 +
 +    if (!avc)
 +        exit_program(1);
 +    for (i = 0; i < n; i++)
 +        avc[i] = output_files[i].ctx;
 +
 +    av_sdp_create(avc, n, sdp, sizeof(sdp));
 +    printf("SDP:\n%s\n", sdp);
 +    fflush(stdout);
 +    av_freep(&avc);
 +}
 +
 +static int init_input_stream(int ist_index, OutputStream *output_streams, int nb_output_streams,
 +                             char *error, int error_len)
 +{
 +    InputStream *ist = &input_streams[ist_index];
 +    if (ist->decoding_needed) {
 +        AVCodec *codec = ist->dec;
 +        if (!codec) {
 +            snprintf(error, error_len, "Decoder (codec %s) not found for input stream #%d:%d",
 +                    avcodec_get_name(ist->st->codec->codec_id), ist->file_index, ist->st->index);
 +            return AVERROR(EINVAL);
 +        }
 +
 +        ist->dr1 = codec->capabilities & CODEC_CAP_DR1;
 +        if (codec->type == AVMEDIA_TYPE_VIDEO && ist->dr1) {
 +            ist->st->codec->get_buffer     = codec_get_buffer;
 +            ist->st->codec->release_buffer = codec_release_buffer;
 +            ist->st->codec->opaque         = ist;
 +        }
 +
 +        if (!av_dict_get(ist->opts, "threads", NULL, 0))
 +            av_dict_set(&ist->opts, "threads", "auto", 0);
 +        if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
 +            snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
 +                    ist->file_index, ist->st->index);
 +            return AVERROR(EINVAL);
 +        }
 +        assert_codec_experimental(ist->st->codec, 0);
 +        assert_avoptions(ist->opts);
 +    }
 +
 +    ist->dts = ist->st->avg_frame_rate.num ? - ist->st->codec->has_b_frames * AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0;
 +    ist->next_pts = AV_NOPTS_VALUE;
 +    ist->next_dts = AV_NOPTS_VALUE;
 +    ist->is_start = 1;
 +
 +    return 0;
 +}
 +
 +static int transcode_init(OutputFile *output_files, int nb_output_files,
 +                          InputFile  *input_files,  int nb_input_files)
 +{
 +    int ret = 0, i, j, k;
 +    AVFormatContext *oc;
 +    AVCodecContext *codec, *icodec;
 +    OutputStream *ost;
 +    InputStream *ist;
 +    char error[1024];
 +    int want_sdp = 1;
 +
 +    /* init framerate emulation */
 +    for (i = 0; i < nb_input_files; i++) {
 +        InputFile *ifile = &input_files[i];
 +        if (ifile->rate_emu)
 +            for (j = 0; j < ifile->nb_streams; j++)
 +                input_streams[j + ifile->ist_index].start = av_gettime();
 +    }
 +
 +    /* output stream init */
 +    for (i = 0; i < nb_output_files; i++) {
 +        oc = output_files[i].ctx;
 +        if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
 +            av_dump_format(oc, i, oc->filename, 1);
 +            av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
 +            return AVERROR(EINVAL);
 +        }
 +    }
 +
 +    /* for each output stream, we compute the right encoding parameters */
 +    for (i = 0; i < nb_output_streams; i++) {
 +        ost = &output_streams[i];
 +        oc  = output_files[ost->file_index].ctx;
 +        ist = &input_streams[ost->source_index];
 +
 +        if (ost->attachment_filename)
 +            continue;
 +
 +        codec  = ost->st->codec;
 +        icodec = ist->st->codec;
 +
 +        ost->st->disposition          = ist->st->disposition;
 +        codec->bits_per_raw_sample    = icodec->bits_per_raw_sample;
 +        codec->chroma_sample_location = icodec->chroma_sample_location;
 +
 +        if (ost->stream_copy) {
 +            uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
 +
 +            if (extra_size > INT_MAX) {
 +                return AVERROR(EINVAL);
 +            }
 +
 +            /* if stream_copy is selected, no need to decode or encode */
 +            codec->codec_id   = icodec->codec_id;
 +            codec->codec_type = icodec->codec_type;
 +
 +            if (!codec->codec_tag) {
 +                if (!oc->oformat->codec_tag ||
 +                     av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
 +                     av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)
 +                    codec->codec_tag = icodec->codec_tag;
 +            }
 +
 +            codec->bit_rate       = icodec->bit_rate;
 +            codec->rc_max_rate    = icodec->rc_max_rate;
 +            codec->rc_buffer_size = icodec->rc_buffer_size;
 +            codec->field_order    = icodec->field_order;
 +            codec->extradata      = av_mallocz(extra_size);
 +            if (!codec->extradata) {
 +                return AVERROR(ENOMEM);
 +            }
 +            memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
 +            codec->extradata_size= icodec->extradata_size;
 +
 +            codec->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(icodec->time_base)*icodec->ticks_per_frame > 2*av_q2d(ist->st->time_base)
 +                                 && av_q2d(ist->st->time_base) < 1.0/500
 +                    || copy_tb==0){
 +                    codec->time_base = icodec->time_base;
 +                    codec->time_base.num *= icodec->ticks_per_frame;
 +                    codec->time_base.den *= 2;
 +                }
 +            } 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")
 +            ) {
 +                if(   copy_tb<0 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base)
 +                                && av_q2d(ist->st->time_base) < 1.0/500
 +                   || copy_tb==0){
 +                    codec->time_base = icodec->time_base;
 +                    codec->time_base.num *= icodec->ticks_per_frame;
 +                }
 +            }
 +            av_reduce(&codec->time_base.num, &codec->time_base.den,
 +                        codec->time_base.num, codec->time_base.den, INT_MAX);
 +
 +            switch (codec->codec_type) {
 +            case AVMEDIA_TYPE_AUDIO:
 +                if (audio_volume != 256) {
 +                    av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
 +                    exit_program(1);
 +                }
 +                codec->channel_layout     = icodec->channel_layout;
 +                codec->sample_rate        = icodec->sample_rate;
 +                codec->channels           = icodec->channels;
 +                codec->frame_size         = icodec->frame_size;
 +                codec->audio_service_type = icodec->audio_service_type;
 +                codec->block_align        = icodec->block_align;
 +                break;
 +            case AVMEDIA_TYPE_VIDEO:
 +                codec->pix_fmt            = icodec->pix_fmt;
 +                codec->width              = icodec->width;
 +                codec->height             = icodec->height;
 +                codec->has_b_frames       = icodec->has_b_frames;
 +                if (!codec->sample_aspect_ratio.num) {
 +                    codec->sample_aspect_ratio   =
 +                    ost->st->sample_aspect_ratio =
 +                        ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
 +                        ist->st->codec->sample_aspect_ratio.num ?
 +                        ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
 +                }
 +                ost->st->avg_frame_rate = ist->st->avg_frame_rate;
 +                break;
 +            case AVMEDIA_TYPE_SUBTITLE:
 +                codec->width  = icodec->width;
 +                codec->height = icodec->height;
 +                break;
 +            case AVMEDIA_TYPE_DATA:
 +            case AVMEDIA_TYPE_ATTACHMENT:
 +                break;
 +            default:
 +                abort();
 +            }
 +        } else {
 +            if (!ost->enc)
 +                ost->enc = avcodec_find_encoder(codec->codec_id);
 +
 +            ist->decoding_needed = 1;
 +            ost->encoding_needed = 1;
 +
 +            switch (codec->codec_type) {
 +            case AVMEDIA_TYPE_AUDIO:
 +                ost->fifo = av_fifo_alloc(1024);
 +                if (!ost->fifo) {
 +                    return AVERROR(ENOMEM);
 +                }
 +                if (!codec->sample_rate)
 +                    codec->sample_rate = icodec->sample_rate;
 +                choose_sample_rate(ost->st, ost->enc);
 +                codec->time_base = (AVRational){ 1, codec->sample_rate };
 +
 +                if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
 +                    codec->sample_fmt = icodec->sample_fmt;
 +                choose_sample_fmt(ost->st, ost->enc);
 +
 +                if (ost->audio_channels_mapped) {
 +                    /* the requested output channel is set to the number of
 +                     * -map_channel only if no -ac are specified */
 +                    if (!codec->channels) {
 +                        codec->channels       = ost->audio_channels_mapped;
 +                        codec->channel_layout = av_get_default_channel_layout(codec->channels);
 +                        if (!codec->channel_layout) {
 +                            av_log(NULL, AV_LOG_FATAL, "Unable to find an appropriate channel layout for requested number of channel\n");
 +                            exit_program(1);
 +                        }
 +                    }
 +                    /* fill unused channel mapping with -1 (which means a muted
 +                     * channel in case the number of output channels is bigger
 +                     * than the number of mapped channel) */
 +                    for (j = ost->audio_channels_mapped; j < FF_ARRAY_ELEMS(ost->audio_channels_map); j++)
 +                        ost->audio_channels_map[j] = -1;
 +                } else if (!codec->channels) {
 +                    codec->channels = icodec->channels;
 +                    codec->channel_layout = icodec->channel_layout;
 +                }
 +                if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
 +                    codec->channel_layout = 0;
 +
 +                ost->audio_resample       = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
 +                ost->audio_resample      |=    codec->sample_fmt     != icodec->sample_fmt
 +                                            || codec->channel_layout != icodec->channel_layout;
 +                icodec->request_channels  = codec->channels;
 +                ost->resample_sample_fmt  = icodec->sample_fmt;
 +                ost->resample_sample_rate = icodec->sample_rate;
 +                ost->resample_channels    = icodec->channels;
 +                break;
 +            case AVMEDIA_TYPE_VIDEO:
 +                if (codec->pix_fmt == PIX_FMT_NONE)
 +                    codec->pix_fmt = icodec->pix_fmt;
 +                choose_pixel_fmt(ost->st, ost->enc);
 +
 +                if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
 +                    av_log(NULL, AV_LOG_FATAL, "Video pixel format is unknown, stream cannot be encoded\n");
 +                    exit_program(1);
 +                }
 +
 +                if (!codec->width || !codec->height) {
 +                    codec->width  = icodec->width;
 +                    codec->height = icodec->height;
 +                }
 +
 +                ost->video_resample = codec->width   != icodec->width  ||
 +                                      codec->height  != icodec->height ||
 +                                      codec->pix_fmt != icodec->pix_fmt;
 +                if (ost->video_resample) {
 +                    codec->bits_per_raw_sample = frame_bits_per_raw_sample;
 +                }
 +
 +                ost->resample_height  = icodec->height;
 +                ost->resample_width   = icodec->width;
 +                ost->resample_pix_fmt = icodec->pix_fmt;
 +
 +                if (!ost->frame_rate.num)
 +                    ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_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];
 +                }
 +                codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
 +                if (   av_q2d(codec->time_base) < 0.001 && video_sync_method != VSYNC_PASSTHROUGH
 +                   && (video_sync_method == VSYNC_CFR || (video_sync_method == VSYNC_AUTO && !(oc->oformat->flags & AVFMT_VARIABLE_FPS)))){
 +                    av_log(oc, AV_LOG_WARNING, "Frame rate very high for a muxer not effciciently supporting it.\n"
 +                                               "Please consider specifiying a lower framerate, a different muxer or -vsync 2\n");
 +                }
 +                for (j = 0; j < ost->forced_kf_count; j++)
 +                    ost->forced_kf_pts[j] = av_rescale_q(ost->forced_kf_pts[j],
 +                                                         AV_TIME_BASE_Q,
 +                                                         codec->time_base);
 +
 +#if CONFIG_AVFILTER
 +                if (configure_video_filters(ist, ost)) {
 +                    av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
 +                    exit_program(1);
 +                }
 +#endif
 +                break;
 +            case AVMEDIA_TYPE_SUBTITLE:
 +                codec->time_base = (AVRational){1, 1000};
 +                break;
 +            default:
 +                abort();
 +                break;
 +            }
 +            /* two pass mode */
 +            if (codec->codec_id != CODEC_ID_H264 &&
 +                (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
 +                char logfilename[1024];
 +                FILE *f;
 +
 +                snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
 +                         pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
 +                         i);
 +                if (codec->flags & CODEC_FLAG_PASS2) {
 +                    char  *logbuffer;
 +                    size_t logbuffer_size;
 +                    if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
 +                        av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
 +                               logfilename);
 +                        exit_program(1);
 +                    }
 +                    codec->stats_in = logbuffer;
 +                }
 +                if (codec->flags & CODEC_FLAG_PASS1) {
 +                    f = fopen(logfilename, "wb");
 +                    if (!f) {
 +                        av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
 +                               logfilename, strerror(errno));
 +                        exit_program(1);
 +                    }
 +                    ost->logfile = f;
 +                }
 +            }
 +        }
 +    }
 +
 +    /* open each encoder */
 +    for (i = 0; i < nb_output_streams; i++) {
 +        ost = &output_streams[i];
 +        if (ost->encoding_needed) {
 +            AVCodec      *codec = ost->enc;
 +            AVCodecContext *dec = input_streams[ost->source_index].st->codec;
 +            if (!codec) {
 +                snprintf(error, sizeof(error), "Encoder (codec %s) not found for output stream #%d:%d",
 +                         avcodec_get_name(ost->st->codec->codec_id), ost->file_index, ost->index);
 +                ret = AVERROR(EINVAL);
 +                goto dump_format;
 +            }
 +            if (dec->subtitle_header) {
 +                ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
 +                if (!ost->st->codec->subtitle_header) {
 +                    ret = AVERROR(ENOMEM);
 +                    goto dump_format;
 +                }
 +                memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
 +                ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
 +            }
 +            if (!av_dict_get(ost->opts, "threads", NULL, 0))
 +                av_dict_set(&ost->opts, "threads", "auto", 0);
 +            if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
 +                snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
 +                        ost->file_index, ost->index);
 +                ret = AVERROR(EINVAL);
 +                goto dump_format;
 +            }
 +            assert_codec_experimental(ost->st->codec, 1);
 +            assert_avoptions(ost->opts);
 +            if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
 +                av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
 +                                             " It takes bits/s as argument, not kbits/s\n");
 +            extra_size += ost->st->codec->extradata_size;
 +
 +            if (ost->st->codec->me_threshold)
 +                input_streams[ost->source_index].st->codec->debug |= FF_DEBUG_MV;
 +        }
 +    }
 +
 +    /* init input streams */
 +    for (i = 0; i < nb_input_streams; i++)
 +        if ((ret = init_input_stream(i, output_streams, nb_output_streams, error, sizeof(error))) < 0)
 +            goto dump_format;
 +
 +    /* discard unused programs */
 +    for (i = 0; i < nb_input_files; i++) {
 +        InputFile *ifile = &input_files[i];
 +        for (j = 0; j < ifile->ctx->nb_programs; j++) {
 +            AVProgram *p = ifile->ctx->programs[j];
 +            int discard  = AVDISCARD_ALL;
 +
 +            for (k = 0; k < p->nb_stream_indexes; k++)
 +                if (!input_streams[ifile->ist_index + p->stream_index[k]].discard) {
 +                    discard = AVDISCARD_DEFAULT;
 +                    break;
 +                }
 +            p->discard = discard;
 +        }
 +    }
 +
 +    /* open files and write file headers */
 +    for (i = 0; i < nb_output_files; i++) {
 +        oc = output_files[i].ctx;
 +        oc->interrupt_callback = int_cb;
 +        if (avformat_write_header(oc, &output_files[i].opts) < 0) {
 +            snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
 +            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_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;
 +        }
 +        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->audio_channels_mapped) {
 +            av_log(NULL, AV_LOG_INFO, " [ch:");
 +            for (j = 0; j < ost->audio_channels_mapped; j++)
 +                if (ost->audio_channels_map[j] == -1)
 +                    av_log(NULL, AV_LOG_INFO, " M");
 +                else
 +                    av_log(NULL, AV_LOG_INFO, " %d", ost->audio_channels_map[j]);
 +            av_log(NULL, AV_LOG_INFO, "]");
 +        }
 +        if (ost->sync_ist != &input_streams[ost->source_index])
 +            av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
 +                   ost->sync_ist->file_index,
 +                   ost->sync_ist->st->index);
 +        if (ost->stream_copy)
 +            av_log(NULL, AV_LOG_INFO, " (copy)");
 +        else
 +            av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index].dec ?
 +                   input_streams[ost->source_index].dec->name : "?",
 +                   ost->enc ? ost->enc->name : "?");
 +        av_log(NULL, AV_LOG_INFO, "\n");
 +    }
 +
 +    if (ret) {
 +        av_log(NULL, AV_LOG_ERROR, "%s\n", error);
 +        return ret;
 +    }
 +
 +    if (want_sdp) {
 +        print_sdp(output_files, nb_output_files);
 +    }
 +
 +    return 0;
 +}
 +
 +/*
 + * The following code is the main loop of the file converter
 + */
 +static int transcode(OutputFile *output_files, int nb_output_files,
 +                     InputFile  *input_files,  int nb_input_files)
 +{
 +    int ret, i;
 +    AVFormatContext *is, *os;
 +    OutputStream *ost;
 +    InputStream *ist;
 +    uint8_t *no_packet;
 +    int no_packet_count = 0;
 +    int64_t timer_start;
 +    int key;
 +
 +    if (!(no_packet = av_mallocz(nb_input_files)))
 +        exit_program(1);
 +
 +    ret = transcode_init(output_files, nb_output_files, input_files, nb_input_files);
 +    if (ret < 0)
 +        goto fail;
 +
 +    if (!using_stdin) {
 +        av_log(NULL, AV_LOG_INFO, "Press [q] to stop, [?] for help\n");
 +    }
 +
 +    timer_start = av_gettime();
 +
 +    for (; received_sigterm == 0;) {
 +        int file_index, ist_index;
 +        AVPacket pkt;
 +        int64_t ipts_min;
 +        double opts_min;
 +        int64_t cur_time= av_gettime();
 +
 +        ipts_min = INT64_MAX;
 +        opts_min = 1e100;
 +        /* if 'q' pressed, exits */
 +        if (!using_stdin) {
 +            static int64_t last_time;
 +            if (received_nb_signals)
 +                break;
 +            /* 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')
 +                break;
 +            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 CONFIG_AVFILTER
 +            if (key == 'c' || key == 'C'){
 +                char buf[4096], target[64], command[256], arg[256] = {0};
 +                double time;
 +                int k, n = 0;
 +                fprintf(stderr, "\nEnter command: <target> <time> <command>[ <argument>]\n");
 +                i = 0;
 +                while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1)
 +                    if (k > 0)
 +                        buf[i++] = k;
 +                buf[i] = 0;
 +                if (k > 0 &&
 +                    (n = sscanf(buf, "%63[^ ] %lf %255[^ ] %255[^\n]", target, &time, command, arg)) >= 3) {
 +                    av_log(NULL, AV_LOG_DEBUG, "Processing command target:%s time:%f command:%s arg:%s",
 +                           target, time, command, arg);
 +                    for (i = 0; i < nb_output_streams; i++) {
 +                        ost = &output_streams[i];
 +                        if (ost->graph) {
 +                            if (time < 0) {
 +                                ret = avfilter_graph_send_command(ost->graph, target, command, arg, buf, sizeof(buf),
 +                                                                  key == 'c' ? AVFILTER_CMD_FLAG_ONE : 0);
 +                                fprintf(stderr, "Command reply for stream %d: ret:%d res:%s\n", i, ret, buf);
 +                            } else {
 +                                ret = avfilter_graph_queue_command(ost->graph, target, command, arg, 0, time);
 +                            }
 +                        }
 +                    }
 +                } else {
 +                    av_log(NULL, AV_LOG_ERROR,
 +                           "Parse error, at least 3 arguments were expected, "
 +                           "only %d given in string '%s'\n", n, buf);
 +                }
 +            }
 +#endif
 +            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++) {
 +                    ost = &output_streams[i];
 +                    ost->st->codec->debug = debug;
 +                }
 +                if(debug) av_log_set_level(AV_LOG_DEBUG);
 +                fprintf(stderr,"debug=%d\n", debug);
 +            }
 +            if (key == '?'){
 +                fprintf(stderr, "key    function\n"
 +                                "?      show this help\n"
 +                                "+      increase verbosity\n"
 +                                "-      decrease verbosity\n"
 +                                "c      Send command to filtergraph\n"
 +                                "D      cycle through available debug modes\n"
 +                                "h      dump packets/hex press to cycle through the 3 states\n"
 +                                "q      quit\n"
 +                                "s      Show QP histogram\n"
 +                );
 +            }
 +        }
 +
 +        /* select the stream that we must read now by looking at the
 +           smallest output pts */
 +        file_index = -1;
 +        for (i = 0; i < nb_output_streams; i++) {
 +            OutputFile *of;
 +            int64_t ipts;
 +            double  opts;
 +            ost = &output_streams[i];
 +            of = &output_files[ost->file_index];
 +            os = output_files[ost->file_index].ctx;
 +            ist = &input_streams[ost->source_index];
 +            if (ost->is_past_recording_time || no_packet[ist->file_index] ||
 +                (os->pb && avio_tell(os->pb) >= of->limit_filesize))
 +                continue;
 +            opts = ost->st->pts.val * av_q2d(ost->st->time_base);
 +            ipts = ist->pts;
 +            if (!input_files[ist->file_index].eof_reached) {
 +                if (ipts < ipts_min) {
 +                    ipts_min = ipts;
 +                    if (input_sync)
 +                        file_index = ist->file_index;
 +                }
 +                if (opts < opts_min) {
 +                    opts_min = opts;
 +                    if (!input_sync) file_index = ist->file_index;
 +                }
 +            }
 +            if (ost->frame_number >= ost->max_frames) {
 +                int j;
 +                for (j = 0; j < of->ctx->nb_streams; j++)
 +                    output_streams[of->ost_index + j].is_past_recording_time = 1;
 +                continue;
 +            }
 +        }
 +        /* if none, if is finished */
 +        if (file_index < 0) {
 +            if (no_packet_count) {
 +                no_packet_count = 0;
 +                memset(no_packet, 0, nb_input_files);
 +                usleep(10000);
 +                continue;
 +            }
 +            break;
 +        }
 +
 +        /* read a frame from it and output it in the fifo */
 +        is  = input_files[file_index].ctx;
 +        ret = av_read_frame(is, &pkt);
 +        if (ret == AVERROR(EAGAIN)) {
 +            no_packet[file_index] = 1;
 +            no_packet_count++;
 +            continue;
 +        }
 +        if (ret < 0) {
 +            input_files[file_index].eof_reached = 1;
 +            if (opt_shortest)
 +                break;
 +            else
 +                continue;
 +        }
 +
 +        no_packet_count = 0;
 +        memset(no_packet, 0, nb_input_files);
 +
 +        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 >= input_files[file_index].nb_streams)
 +            goto discard_packet;
 +        ist_index = input_files[file_index].ist_index + pkt.stream_index;
 +        ist = &input_streams[ist_index];
 +        if (ist->discard)
 +            goto discard_packet;
 +
 +        if (pkt.dts != AV_NOPTS_VALUE)
 +            pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
 +        if (pkt.pts != AV_NOPTS_VALUE)
 +            pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
 +
 +        if (pkt.pts != AV_NOPTS_VALUE)
 +            pkt.pts *= ist->ts_scale;
 +        if (pkt.dts != AV_NOPTS_VALUE)
 +            pkt.dts *= ist->ts_scale;
 +
 +        if (debug_ts) {
 +            av_log(NULL, AV_LOG_INFO, "demuxer -> ist_index:%d type:%s "
 +                    "next_pts:%s next_pts_time:%s pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s off:%"PRId64"\n",
 +                    ist_index, av_get_media_type_string(ist->st->codec->codec_type),
 +                    av_ts2str(ist->next_pts), av_ts2timestr(ist->next_pts, &ist->st->time_base),
 +                    av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
 +                    av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
 +                    input_files[ist->file_index].ts_offset);
 +        }
 +
 +        if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE && !copy_ts) {
 +            int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
 +            int64_t delta   = pkt_dts - ist->next_dts;
 +            if (is->iformat->flags & AVFMT_TS_DISCONT) {
 +            if(delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
 +                (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
 +                 ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) ||
 +                pkt_dts+1<ist->pts){
 +                input_files[ist->file_index].ts_offset -= delta;
 +                av_log(NULL, AV_LOG_DEBUG,
 +                       "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
 +                       delta, input_files[ist->file_index].ts_offset);
 +                pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
 +                if (pkt.pts != AV_NOPTS_VALUE)
 +                    pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
 +            }
 +            } else {
 +                if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
 +                    (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) ||
 +                     pkt_dts+1<ist->pts){
 +                    av_log(NULL, AV_LOG_WARNING, "DTS %"PRId64", next:%"PRId64" st:%d invalid droping\n", pkt.dts, ist->next_dts, pkt.stream_index);
 +                    pkt.dts = AV_NOPTS_VALUE;
 +                }
 +                if (pkt.pts != AV_NOPTS_VALUE){
 +                    int64_t pkt_pts = av_rescale_q(pkt.pts, ist->st->time_base, AV_TIME_BASE_Q);
 +                    delta   = pkt_pts - ist->next_dts;
 +                    if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
 +                        (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)) {
 +                        av_log(NULL, AV_LOG_WARNING, "PTS %"PRId64", next:%"PRId64" invalid droping st:%d\n", pkt.pts, ist->next_dts, pkt.stream_index);
 +                        pkt.pts = AV_NOPTS_VALUE;
 +                    }
 +                }
 +            }
 +        }
 +
 +        // fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
 +        if (output_packet(ist, output_streams, nb_output_streams, &pkt) < 0) {
 +
 +            av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
 +                   ist->file_index, ist->st->index);
 +            if (exit_on_error)
 +                exit_program(1);
 +            av_free_packet(&pkt);
 +            continue;
 +        }
 +
 +    discard_packet:
 +        av_free_packet(&pkt);
 +
 +        /* dump report by using the output first video and audio streams */
 +        print_report(output_files, output_streams, nb_output_streams, 0, timer_start, cur_time);
 +    }
 +
 +    /* at the end of stream, we must flush the decoder buffers */
 +    for (i = 0; i < nb_input_streams; i++) {
 +        ist = &input_streams[i];
 +        if (ist->decoding_needed) {
 +            output_packet(ist, output_streams, nb_output_streams, NULL);
 +        }
 +    }
 +    flush_encoders(output_streams, nb_output_streams);
 +
 +    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(output_files, output_streams, nb_output_streams, 1, timer_start, av_gettime());
 +
 +    /* close each encoder */
 +    for (i = 0; i < nb_output_streams; i++) {
 +        ost = &output_streams[i];
 +        if (ost->encoding_needed) {
 +            av_freep(&ost->st->codec->stats_in);
 +            avcodec_close(ost->st->codec);
 +        }
 +#if CONFIG_AVFILTER
 +        avfilter_graph_free(&ost->graph);
 +#endif
 +    }
 +
 +    /* close each decoder */
 +    for (i = 0; i < nb_input_streams; i++) {
 +        ist = &input_streams[i];
 +        if (ist->decoding_needed) {
 +            avcodec_close(ist->st->codec);
 +        }
 +    }
 +
 +    /* finished ! */
 +    ret = 0;
 +
 + fail:
 +    av_freep(&no_packet);
 +
 +    if (output_streams) {
 +        for (i = 0; i < nb_output_streams; i++) {
 +            ost = &output_streams[i];
 +            if (ost) {
 +                if (ost->stream_copy)
 +                    av_freep(&ost->st->codec->extradata);
 +                if (ost->logfile) {
 +                    fclose(ost->logfile);
 +                    ost->logfile = NULL;
 +                }
 +                av_fifo_free(ost->fifo); /* works even if fifo is not
 +                                             initialized but set to zero */
 +                av_freep(&ost->st->codec->subtitle_header);
 +                av_free(ost->resample_frame.data[0]);
 +                av_free(ost->forced_kf_pts);
 +                if (ost->video_resample)
 +                    sws_freeContext(ost->img_resample_ctx);
 +                swr_free(&ost->swr);
 +                av_dict_free(&ost->opts);
 +            }
 +        }
 +    }
 +    return ret;
 +}
 +
 +static int opt_frame_crop(const char *opt, const char *arg)
 +{
 +    av_log(NULL, AV_LOG_FATAL, "Option '%s' has been removed, use the crop filter instead\n", opt);
 +    return AVERROR(EINVAL);
 +}
 +
 +static int opt_pad(const char *opt, const char *arg)
 +{
 +    av_log(NULL, AV_LOG_FATAL, "Option '%s' has been removed, use the pad filter instead\n", opt);
 +    return -1;
 +}
 +
 +static int opt_video_channel(const char *opt, const char *arg)
 +{
 +    av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -channel.\n");
 +    return opt_default("channel", arg);
 +}
 +
 +static int opt_video_standard(const char *opt, const char *arg)
 +{
 +    av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -standard.\n");
 +    return opt_default("standard", arg);
 +}
 +
 +static int opt_audio_codec(OptionsContext *o, const char *opt, const char *arg)
 +{
 +    audio_codec_name = arg;
 +    return parse_option(o, "codec:a", arg, options);
 +}
 +
 +static int opt_video_codec(OptionsContext *o, const char *opt, const char *arg)
 +{
 +    video_codec_name = arg;
 +    return parse_option(o, "codec:v", arg, options);
 +}
 +
 +static int opt_subtitle_codec(OptionsContext *o, const char *opt, const char *arg)
 +{
 +    subtitle_codec_name = arg;
 +    return parse_option(o, "codec:s", arg, options);
 +}
 +
 +static int opt_data_codec(OptionsContext *o, const char *opt, const char *arg)
 +{
 +    return parse_option(o, "codec:d", arg, options);
 +}
 +
 +static int opt_map(OptionsContext *o, const char *opt, const char *arg)
 +{
 +    StreamMap *m = NULL;
 +    int i, negative = 0, file_idx;
 +    int sync_file_idx = -1, sync_stream_idx = 0;
 +    char *p, *sync;
 +    char *map;
 +
 +    if (*arg == '-') {
 +        negative = 1;
 +        arg++;
 +    }
 +    map = av_strdup(arg);
 +
 +    /* parse sync stream first, just pick first matching stream */
 +    if (sync = strchr(map, ',')) {
 +        *sync = 0;
 +        sync_file_idx = strtol(sync + 1, &sync, 0);
 +        if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
 +            av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
 +            exit_program(1);
 +        }
 +        if (*sync)
 +            sync++;
 +        for (i = 0; i < input_files[sync_file_idx].nb_streams; i++)
 +            if (check_stream_specifier(input_files[sync_file_idx].ctx,
 +                                       input_files[sync_file_idx].ctx->streams[i], sync) == 1) {
 +                sync_stream_idx = i;
 +                break;
 +            }
 +        if (i == input_files[sync_file_idx].nb_streams) {
 +            av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
 +                                       "match any streams.\n", arg);
 +            exit_program(1);
 +        }
 +    }
 +
 +
 +    file_idx = strtol(map, &p, 0);
 +    if (file_idx >= nb_input_files || file_idx < 0) {
 +        av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
 +        exit_program(1);
 +    }
 +    if (negative)
 +        /* disable some already defined maps */
 +        for (i = 0; i < o->nb_stream_maps; i++) {
 +            m = &o->stream_maps[i];
 +            if (file_idx == m->file_index &&
 +                check_stream_specifier(input_files[m->file_index].ctx,
 +                                       input_files[m->file_index].ctx->streams[m->stream_index],
 +                                       *p == ':' ? p + 1 : p) > 0)
 +                m->disabled = 1;
 +        }
 +    else
 +        for (i = 0; i < input_files[file_idx].nb_streams; i++) {
 +            if (check_stream_specifier(input_files[file_idx].ctx, input_files[file_idx].ctx->streams[i],
 +                        *p == ':' ? p + 1 : p) <= 0)
 +                continue;
 +            o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
 +                                        &o->nb_stream_maps, o->nb_stream_maps + 1);
 +            m = &o->stream_maps[o->nb_stream_maps - 1];
 +
 +            m->file_index   = file_idx;
 +            m->stream_index = i;
 +
 +            if (sync_file_idx >= 0) {
 +                m->sync_file_index   = sync_file_idx;
 +                m->sync_stream_index = sync_stream_idx;
 +            } else {
 +                m->sync_file_index   = file_idx;
 +                m->sync_stream_index = i;
 +            }
 +        }
 +
 +    if (!m) {
 +        av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n", arg);
 +        exit_program(1);
 +    }
 +
 +    av_freep(&map);
 +    return 0;
 +}
 +
 +static int opt_attach(OptionsContext *o, const char *opt, const char *arg)
 +{
 +    o->attachments = grow_array(o->attachments, sizeof(*o->attachments),
 +                                &o->nb_attachments, o->nb_attachments + 1);
 +    o->attachments[o->nb_attachments - 1] = arg;
 +    return 0;
 +}
 +
 +static int opt_map_channel(OptionsContext *o, const char *opt, const char *arg)
 +{
 +    int n;
 +    AVStream *st;
 +    AudioChannelMap *m;
 +
 +    o->audio_channel_maps =
 +        grow_array(o->audio_channel_maps, sizeof(*o->audio_channel_maps),
 +                   &o->nb_audio_channel_maps, o->nb_audio_channel_maps + 1);
 +    m = &o->audio_channel_maps[o->nb_audio_channel_maps - 1];
 +
 +    /* muted channel syntax */
 +    n = sscanf(arg, "%d:%d.%d", &m->channel_idx, &m->ofile_idx, &m->ostream_idx);
 +    if ((n == 1 || n == 3) && m->channel_idx == -1) {
 +        m->file_idx = m->stream_idx = -1;
 +        if (n == 1)
 +            m->ofile_idx = m->ostream_idx = -1;
 +        return 0;
 +    }
 +
 +    /* normal syntax */
 +    n = sscanf(arg, "%d.%d.%d:%d.%d",
 +               &m->file_idx,  &m->stream_idx, &m->channel_idx,
 +               &m->ofile_idx, &m->ostream_idx);
 +
 +    if (n != 3 && n != 5) {
 +        av_log(NULL, AV_LOG_FATAL, "Syntax error, mapchan usage: "
 +               "[file.stream.channel|-1][:syncfile:syncstream]\n");
 +        exit_program(1);
 +    }
 +
 +    if (n != 5) // only file.stream.channel specified
 +        m->ofile_idx = m->ostream_idx = -1;
 +
 +    /* check input */
 +    if (m->file_idx < 0 || m->file_idx >= nb_input_files) {
 +        av_log(NULL, AV_LOG_FATAL, "mapchan: invalid input file index: %d\n",
 +               m->file_idx);
 +        exit_program(1);
 +    }
 +    if (m->stream_idx < 0 ||
 +        m->stream_idx >= input_files[m->file_idx].nb_streams) {
 +        av_log(NULL, AV_LOG_FATAL, "mapchan: invalid input file stream index #%d.%d\n",
 +               m->file_idx, m->stream_idx);
 +        exit_program(1);
 +    }
 +    st = input_files[m->file_idx].ctx->streams[m->stream_idx];
 +    if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO) {
 +        av_log(NULL, AV_LOG_FATAL, "mapchan: stream #%d.%d is not an audio stream.\n",
 +               m->file_idx, m->stream_idx);
 +        exit_program(1);
 +    }
 +    if (m->channel_idx < 0 || m->channel_idx >= st->codec->channels) {
 +        av_log(NULL, AV_LOG_FATAL, "mapchan: invalid audio channel #%d.%d.%d\n",
 +               m->file_idx, m->stream_idx, m->channel_idx);
 +        exit_program(1);
 +    }
 +    return 0;
 +}
 +
 +/**
 + * Parse a metadata specifier in arg.
 + * @param type metadata type is written here -- g(lobal)/s(tream)/c(hapter)/p(rogram)
 + * @param index for type c/p, chapter/program index is written here
 + * @param stream_spec for type s, the stream specifier is written here
 + */
 +static void parse_meta_type(char *arg, char *type, int *index, const char **stream_spec)
 +{
 +    if (*arg) {
 +        *type = *arg;
 +        switch (*arg) {
 +        case 'g':
 +            break;
 +        case 's':
 +            if (*(++arg) && *arg != ':') {
 +                av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", arg);
 +                exit_program(1);
 +            }
 +            *stream_spec = *arg == ':' ? arg + 1 : "";
 +            break;
 +        case 'c':
 +        case 'p':
 +            if (*(++arg) == ':')
 +                *index = strtol(++arg, NULL, 0);
 +            break;
 +        default:
 +            av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
 +            exit_program(1);
 +        }
 +    } else
 +        *type = 'g';
 +}
 +
 +static int copy_metadata(char *outspec, char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o)
 +{
 +    AVDictionary **meta_in = NULL;
 +    AVDictionary **meta_out = NULL;
 +    int i, ret = 0;
 +    char type_in, type_out;
 +    const char *istream_spec = NULL, *ostream_spec = NULL;
 +    int idx_in = 0, idx_out = 0;
 +
 +    parse_meta_type(inspec,  &type_in,  &idx_in,  &istream_spec);
 +    parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
 +
 +    if (type_in == 'g' || type_out == 'g')
 +        o->metadata_global_manual = 1;
 +    if (type_in == 's' || type_out == 's')
 +        o->metadata_streams_manual = 1;
 +    if (type_in == 'c' || type_out == 'c')
 +        o->metadata_chapters_manual = 1;
 +
 +#define METADATA_CHECK_INDEX(index, nb_elems, desc)\
 +    if ((index) < 0 || (index) >= (nb_elems)) {\
 +        av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps.\n",\
 +                (desc), (index));\
 +        exit_program(1);\
 +    }
 +
 +#define SET_DICT(type, meta, context, index)\
 +        switch (type) {\
 +        case 'g':\
 +            meta = &context->metadata;\
 +            break;\
 +        case 'c':\
 +            METADATA_CHECK_INDEX(index, context->nb_chapters, "chapter")\
 +            meta = &context->chapters[index]->metadata;\
 +            break;\
 +        case 'p':\
 +            METADATA_CHECK_INDEX(index, context->nb_programs, "program")\
 +            meta = &context->programs[index]->metadata;\
 +            break;\
 +        }\
 +
 +    SET_DICT(type_in, meta_in, ic, idx_in);
 +    SET_DICT(type_out, meta_out, oc, idx_out);
 +
 +    /* for input streams choose first matching stream */
 +    if (type_in == 's') {
 +        for (i = 0; i < ic->nb_streams; i++) {
 +            if ((ret = check_stream_specifier(ic, ic->streams[i], istream_spec)) > 0) {
 +                meta_in = &ic->streams[i]->metadata;
 +                break;
 +            } else if (ret < 0)
 +                exit_program(1);
 +        }
 +        if (!meta_in) {
 +            av_log(NULL, AV_LOG_FATAL, "Stream specifier %s does not match  any streams.\n", istream_spec);
 +            exit_program(1);
 +        }
 +    }
 +
 +    if (type_out == 's') {
 +        for (i = 0; i < oc->nb_streams; i++) {
 +            if ((ret = check_stream_specifier(oc, oc->streams[i], ostream_spec)) > 0) {
 +                meta_out = &oc->streams[i]->metadata;
 +                av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
 +            } else if (ret < 0)
 +                exit_program(1);
 +        }
 +    } else
 +        av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
 +
 +    return 0;
 +}
 +
 +static int opt_recording_timestamp(OptionsContext *o, const char *opt, const char *arg)
 +{
 +    char buf[128];
 +    int64_t recording_timestamp = parse_time_or_die(opt, arg, 0) / 1E6;
 +    struct tm time = *gmtime((time_t*)&recording_timestamp);
 +    strftime(buf, sizeof(buf), "creation_time=%FT%T%z", &time);
 +    parse_option(o, "metadata", buf, options);
 +
 +    av_log(NULL, AV_LOG_WARNING, "%s is deprecated, set the 'creation_time' metadata "
 +                                 "tag instead.\n", opt);
 +    return 0;
 +}
 +
 +static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
 +{
 +    const char *codec_string = encoder ? "encoder" : "decoder";
 +    AVCodec *codec;
 +
 +    codec = encoder ?
 +        avcodec_find_encoder_by_name(name) :
 +        avcodec_find_decoder_by_name(name);
 +    if (!codec) {
 +        av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
 +        exit_program(1);
 +    }
 +    if (codec->type != type) {
 +        av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
 +        exit_program(1);
 +    }
 +    return codec;
 +}
 +
 +static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
 +{
 +    char *codec_name = NULL;
 +
 +    MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
 +    if (codec_name) {
 +        AVCodec *codec = find_codec_or_die(codec_name, st->codec->codec_type, 0);
 +        st->codec->codec_id = codec->id;
 +        return codec;
 +    } else
 +        return avcodec_find_decoder(st->codec->codec_id);
 +}
 +
 +/**
 + * Add all the streams from the given input file to the global
 + * list of input streams.
 + */
 +static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
 +{
 +    int i;
 +    char *next, *codec_tag = NULL;
 +
 +    for (i = 0; i < ic->nb_streams; i++) {
 +        AVStream *st = ic->streams[i];
 +        AVCodecContext *dec = st->codec;
 +        InputStream *ist;
 +
 +        input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
 +        ist = &input_streams[nb_input_streams - 1];
 +        ist->st = st;
 +        ist->file_index = nb_input_files;
 +        ist->discard = 1;
 +        ist->opts = filter_codec_opts(codec_opts, choose_decoder(o, ic, st), ic, st);
 +
 +        ist->ts_scale = 1.0;
 +        MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
 +
 +        MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, ic, st);
 +        if (codec_tag) {
 +            uint32_t tag = strtol(codec_tag, &next, 0);
 +            if (*next)
 +                tag = AV_RL32(codec_tag);
 +            st->codec->codec_tag = tag;
 +        }
 +
 +        ist->dec = choose_decoder(o, ic, st);
 +
 +        switch (dec->codec_type) {
 +        case AVMEDIA_TYPE_AUDIO:
 +            if (!ist->dec)
 +                ist->dec = avcodec_find_decoder(dec->codec_id);
 +            if (o->audio_disable)
 +                st->discard = AVDISCARD_ALL;
 +            break;
 +        case AVMEDIA_TYPE_VIDEO:
 +            if(!ist->dec)
 +                ist->dec = avcodec_find_decoder(dec->codec_id);
 +            if (dec->lowres) {
 +                dec->flags |= CODEC_FLAG_EMU_EDGE;
 +            }
 +
 +            if (o->video_disable)
 +                st->discard = AVDISCARD_ALL;
 +            else if (video_discard)
 +                st->discard = video_discard;
 +            break;
 +        case AVMEDIA_TYPE_DATA:
 +            if (o->data_disable)
 +                st->discard= AVDISCARD_ALL;
 +            break;
 +        case AVMEDIA_TYPE_SUBTITLE:
 +            if(!ist->dec)
 +                ist->dec = avcodec_find_decoder(dec->codec_id);
 +            if(o->subtitle_disable)
 +                st->discard = AVDISCARD_ALL;
 +            break;
 +        case AVMEDIA_TYPE_ATTACHMENT:
 +        case AVMEDIA_TYPE_UNKNOWN:
 +            break;
 +        default:
 +            abort();
 +        }
 +    }
 +}
 +
 +static void assert_file_overwrite(const char *filename)
 +{
 +    if ((!file_overwrite || no_file_overwrite) &&
 +        (strchr(filename, ':') == NULL || filename[1] == ':' ||
 +         av_strstart(filename, "file:", NULL))) {
 +        if (avio_check(filename, 0) == 0) {
 +            if (!using_stdin && (!no_file_overwrite || file_overwrite)) {
 +                fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
 +                fflush(stderr);
 +                term_exit();
 +                signal(SIGINT, SIG_DFL);
 +                if (!read_yesno()) {
 +                    av_log(NULL, AV_LOG_FATAL, "Not overwriting - exiting\n");
 +                    exit_program(1);
 +                }
 +                term_init();
 +            }
 +            else {
 +                av_log(NULL, AV_LOG_FATAL, "File '%s' already exists. Exiting.\n", filename);
 +                exit_program(1);
 +            }
 +        }
 +    }
 +}
 +
 +static void dump_attachment(AVStream *st, const char *filename)
 +{
 +    int ret;
 +    AVIOContext *out = NULL;
 +    AVDictionaryEntry *e;
 +
 +    if (!st->codec->extradata_size) {
 +        av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
 +               nb_input_files - 1, st->index);
 +        return;
 +    }
 +    if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
 +        filename = e->value;
 +    if (!*filename) {
 +        av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
 +               "in stream #%d:%d.\n", nb_input_files - 1, st->index);
 +        exit_program(1);
 +    }
 +
 +    assert_file_overwrite(filename);
 +
 +    if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &int_cb, NULL)) < 0) {
 +        av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
 +               filename);
 +        exit_program(1);
 +    }
 +
 +    avio_write(out, st->codec->extradata, st->codec->extradata_size);
 +    avio_flush(out);
 +    avio_close(out);
 +}
 +
 +static int opt_input_file(OptionsContext *o, const char *opt, const char *filename)
 +{
 +    AVFormatContext *ic;
 +    AVInputFormat *file_iformat = NULL;
 +    int err, i, ret;
 +    int64_t timestamp;
 +    uint8_t buf[128];
 +    AVDictionary **opts;
 +    int orig_nb_streams;                     // number of streams before avformat_find_stream_info
 +
 +    if (o->format) {
 +        if (!(file_iformat = av_find_input_format(o->format))) {
 +            av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
 +            exit_program(1);
 +        }
 +    }
 +
 +    if (!strcmp(filename, "-"))
 +        filename = "pipe:";
 +
 +    using_stdin |= !strncmp(filename, "pipe:", 5) ||
 +                    !strcmp(filename, "/dev/stdin");
 +
 +    /* get default parameters from command line */
 +    ic = avformat_alloc_context();
 +    if (!ic) {
 +        print_error(filename, AVERROR(ENOMEM));
 +        exit_program(1);
 +    }
 +    if (o->nb_audio_sample_rate) {
 +        snprintf(buf, sizeof(buf), "%d", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i);
 +        av_dict_set(&format_opts, "sample_rate", buf, 0);
 +    }
 +    if (o->nb_audio_channels) {
 +        snprintf(buf, sizeof(buf), "%d", o->audio_channels[o->nb_audio_channels - 1].u.i);
 +        av_dict_set(&format_opts, "channels", buf, 0);
 +    }
 +    if (o->nb_frame_rates) {
 +        av_dict_set(&format_opts, "framerate", o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
 +    }
 +    if (o->nb_frame_sizes) {
 +        av_dict_set(&format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
 +    }
 +    if (o->nb_frame_pix_fmts)
 +        av_dict_set(&format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
 +
 +    ic->video_codec_id   = video_codec_name ?
 +        find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0)->id : CODEC_ID_NONE;
 +    ic->audio_codec_id   = audio_codec_name ?
 +        find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0)->id : CODEC_ID_NONE;
 +    ic->subtitle_codec_id= subtitle_codec_name ?
 +        find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0)->id : CODEC_ID_NONE;
 +    ic->flags |= AVFMT_FLAG_NONBLOCK;
 +    ic->interrupt_callback = int_cb;
 +
 +    /* open the input file with generic avformat function */
 +    err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
 +    if (err < 0) {
 +        print_error(filename, err);
 +        exit_program(1);
 +    }
 +    assert_avoptions(format_opts);
 +
 +    /* apply forced codec ids */
 +    for (i = 0; i < ic->nb_streams; i++)
 +        choose_decoder(o, ic, ic->streams[i]);
 +
 +    /* Set AVCodecContext options for avformat_find_stream_info */
 +    opts = setup_find_stream_info_opts(ic, codec_opts);
 +    orig_nb_streams = ic->nb_streams;
 +
 +    /* If not enough info to get the stream parameters, we decode the
 +       first frames to get it. (used in mpeg case for example) */
 +    ret = avformat_find_stream_info(ic, opts);
 +    if (ret < 0) {
 +        av_log(NULL, AV_LOG_FATAL, "%s: could not find codec parameters\n", filename);
 +        avformat_close_input(&ic);
 +        exit_program(1);
 +    }
 +
 +    timestamp = o->start_time;
 +    /* add the stream start time */
 +    if (ic->start_time != AV_NOPTS_VALUE)
 +        timestamp += ic->start_time;
 +
 +    /* if seeking requested, we execute it */
 +    if (o->start_time != 0) {
 +        ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
 +        if (ret < 0) {
 +            av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
 +                   filename, (double)timestamp / AV_TIME_BASE);
 +        }
 +    }
 +
 +    /* update the current parameters so that they match the one of the input stream */
 +    add_input_streams(o, ic);
 +
 +    /* dump the file content */
 +    av_dump_format(ic, nb_input_files, filename, 0);
 +
 +    input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
 +    input_files[nb_input_files - 1].ctx        = ic;
 +    input_files[nb_input_files - 1].ist_index  = nb_input_streams - ic->nb_streams;
 +    input_files[nb_input_files - 1].ts_offset  = o->input_ts_offset - (copy_ts ? 0 : timestamp);
 +    input_files[nb_input_files - 1].nb_streams = ic->nb_streams;
 +    input_files[nb_input_files - 1].rate_emu   = o->rate_emu;
 +
 +    for (i = 0; i < o->nb_dump_attachment; i++) {
 +        int j;
 +
 +        for (j = 0; j < ic->nb_streams; j++) {
 +            AVStream *st = ic->streams[j];
 +
 +            if (check_stream_specifier(ic, st, o->dump_attachment[i].specifier) == 1)
 +                dump_attachment(st, o->dump_attachment[i].u.str);
 +        }
 +    }
 +
 +    for (i = 0; i < orig_nb_streams; i++)
 +        av_dict_free(&opts[i]);
 +    av_freep(&opts);
 +
 +    reset_options(o, 1);
 +    return 0;
 +}
 +
 +static void parse_forced_key_frames(char *kf, OutputStream *ost)
 +{
 +    char *p;
 +    int n = 1, i;
 +
 +    for (p = kf; *p; p++)
 +        if (*p == ',')
 +            n++;
 +    ost->forced_kf_count = n;
 +    ost->forced_kf_pts   = av_malloc(sizeof(*ost->forced_kf_pts) * n);
 +    if (!ost->forced_kf_pts) {
 +        av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
 +        exit_program(1);
 +    }
 +    for (i = 0; i < n; i++) {
 +        p = i ? strchr(p, ',') + 1 : kf;
 +        ost->forced_kf_pts[i] = parse_time_or_die("force_key_frames", p, 1);
 +    }
 +}
 +
 +static uint8_t *get_line(AVIOContext *s)
 +{
 +    AVIOContext *line;
 +    uint8_t *buf;
 +    char c;
 +
 +    if (avio_open_dyn_buf(&line) < 0) {
 +        av_log(NULL, AV_LOG_FATAL, "Could not alloc buffer for reading preset.\n");
 +        exit_program(1);
 +    }
 +
 +    while ((c = avio_r8(s)) && c != '\n')
 +        avio_w8(line, c);
 +    avio_w8(line, 0);
 +    avio_close_dyn_buf(line, &buf);
 +
 +    return buf;
 +}
 +
 +static int get_preset_file_2(const char *preset_name, const char *codec_name, AVIOContext **s)
 +{
 +    int i, ret = 1;
 +    char filename[1000];
 +    const char *base[3] = { getenv("AVCONV_DATADIR"),
 +                            getenv("HOME"),
 +                            AVCONV_DATADIR,
 +                            };
 +
 +    for (i = 0; i < FF_ARRAY_ELEMS(base) && ret; i++) {
 +        if (!base[i])
 +            continue;
 +        if (codec_name) {
 +            snprintf(filename, sizeof(filename), "%s%s/%s-%s.avpreset", base[i],
 +                     i != 1 ? "" : "/.avconv", codec_name, preset_name);
 +            ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
 +        }
 +        if (ret) {
 +            snprintf(filename, sizeof(filename), "%s%s/%s.avpreset", base[i],
 +                     i != 1 ? "" : "/.avconv", preset_name);
 +            ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
 +        }
 +    }
 +    return ret;
 +}
 +
 +static void choose_encoder(OptionsContext *o, AVFormatContext *s, OutputStream *ost)
 +{
 +    char *codec_name = NULL;
 +
 +    MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, ost->st);
 +    if (!codec_name) {
 +        ost->st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename,
 +                                                  NULL, ost->st->codec->codec_type);
 +        ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
 +    } else if (!strcmp(codec_name, "copy"))
 +        ost->stream_copy = 1;
 +    else {
 +        ost->enc = find_codec_or_die(codec_name, ost->st->codec->codec_type, 1);
 +        ost->st->codec->codec_id = ost->enc->id;
 +    }
 +}
 +
 +static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type)
 +{
 +    OutputStream *ost;
 +    AVStream *st = avformat_new_stream(oc, NULL);
 +    int idx      = oc->nb_streams - 1, ret = 0;
 +    char *bsf = NULL, *next, *codec_tag = NULL;
 +    AVBitStreamFilterContext *bsfc, *bsfc_prev = NULL;
 +    double qscale = -1;
 +    char *buf = NULL, *arg = NULL, *preset = NULL;
 +    AVIOContext *s = NULL;
 +
 +    if (!st) {
 +        av_log(NULL, AV_LOG_FATAL, "Could not alloc stream.\n");
 +        exit_program(1);
 +    }
 +
 +    if (oc->nb_streams - 1 < o->nb_streamid_map)
 +        st->id = o->streamid_map[oc->nb_streams - 1];
 +
 +    output_streams = grow_array(output_streams, sizeof(*output_streams), &nb_output_streams,
 +                                nb_output_streams + 1);
 +    ost = &output_streams[nb_output_streams - 1];
 +    ost->file_index = nb_output_files;
 +    ost->index      = idx;
 +    ost->st         = st;
 +    st->codec->codec_type = type;
 +    choose_encoder(o, oc, ost);
 +    if (ost->enc) {
 +        ost->opts  = filter_codec_opts(codec_opts, ost->enc, oc, st);
 +    }
 +
 +    avcodec_get_context_defaults3(st->codec, ost->enc);
 +    st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
 +
 +    MATCH_PER_STREAM_OPT(presets, str, preset, oc, st);
 +    if (preset && (!(ret = get_preset_file_2(preset, ost->enc->name, &s)))) {
 +        do  {
 +            buf = get_line(s);
 +            if (!buf[0] || buf[0] == '#') {
 +                av_free(buf);
 +                continue;
 +            }
 +            if (!(arg = strchr(buf, '='))) {
 +                av_log(NULL, AV_LOG_FATAL, "Invalid line found in the preset file.\n");
 +                exit_program(1);
 +            }
 +            *arg++ = 0;
 +            av_dict_set(&ost->opts, buf, arg, AV_DICT_DONT_OVERWRITE);
 +            av_free(buf);
 +        } while (!s->eof_reached);
 +        avio_close(s);
 +    }
 +    if (ret) {
 +        av_log(NULL, AV_LOG_FATAL,
 +               "Preset %s specified for stream %d:%d, but could not be opened.\n",
 +               preset, ost->file_index, ost->index);
 +        exit_program(1);
 +    }
 +
 +    ost->max_frames = INT64_MAX;
 +    MATCH_PER_STREAM_OPT(max_frames, i64, ost->max_frames, oc, st);
 +
 +    MATCH_PER_STREAM_OPT(bitstream_filters, str, bsf, oc, st);
 +    while (bsf) {
 +        if (next = strchr(bsf, ','))
 +            *next++ = 0;
 +        if (!(bsfc = av_bitstream_filter_init(bsf))) {
 +            av_log(NULL, AV_LOG_FATAL, "Unknown bitstream filter %s\n", bsf);
 +            exit_program(1);
 +        }
 +        if (bsfc_prev)
 +            bsfc_prev->next = bsfc;
 +        else
 +            ost->bitstream_filters = bsfc;
 +
 +        bsfc_prev = bsfc;
 +        bsf       = next;
 +    }
 +
 +    MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, oc, st);
 +    if (codec_tag) {
 +        uint32_t tag = strtol(codec_tag, &next, 0);
 +        if (*next)
 +            tag = AV_RL32(codec_tag);
 +        st->codec->codec_tag = tag;
 +    }
 +
 +    MATCH_PER_STREAM_OPT(qscale, dbl, qscale, oc, st);
 +    if (qscale >= 0 || same_quant) {
 +        st->codec->flags |= CODEC_FLAG_QSCALE;
 +        st->codec->global_quality = FF_QP2LAMBDA * qscale;
 +    }
 +
 +    if (oc->oformat->flags & AVFMT_GLOBALHEADER)
 +        st->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;
 +
 +    av_opt_get_int(sws_opts, "sws_flags", 0, &ost->sws_flags);
 +    return ost;
 +}
 +
 +static void parse_matrix_coeffs(uint16_t *dest, const char *str)
 +{
 +    int i;
 +    const char *p = str;
 +    for (i = 0;; i++) {
 +        dest[i] = atoi(p);
 +        if (i == 63)
 +            break;
 +        p = strchr(p, ',');
 +        if (!p) {
 +            av_log(NULL, AV_LOG_FATAL, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
 +            exit_program(1);
 +        }
 +        p++;
 +    }
 +}
 +
 +static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc)
 +{
 +    AVStream *st;
 +    OutputStream *ost;
 +    AVCodecContext *video_enc;
 +
 +    ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO);
 +    st  = ost->st;
 +    video_enc = st->codec;
 +
 +    if (!ost->stream_copy) {
 +        const char *p = NULL;
 +        char *forced_key_frames = NULL, *frame_rate = NULL, *frame_size = NULL;
 +        char *frame_aspect_ratio = NULL, *frame_pix_fmt = NULL;
 +        char *intra_matrix = NULL, *inter_matrix = NULL, *filters = NULL;
 +        int i;
 +
 +        MATCH_PER_STREAM_OPT(frame_rates, str, frame_rate, oc, st);
 +        if (frame_rate && av_parse_video_rate(&ost->frame_rate, frame_rate) < 0) {
 +            av_log(NULL, AV_LOG_FATAL, "Invalid framerate value: %s\n", frame_rate);
 +            exit_program(1);
 +        }
 +
 +        MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
 +        if (frame_size && av_parse_video_size(&video_enc->width, &video_enc->height, frame_size) < 0) {
 +            av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
 +            exit_program(1);
 +        }
 +
 +        MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
 +        if (frame_aspect_ratio) {
 +            AVRational q;
 +            if (av_parse_ratio(&q, frame_aspect_ratio, 255, 0, NULL) < 0 ||
 +                q.num <= 0 || q.den <= 0) {
 +                av_log(NULL, AV_LOG_FATAL, "Invalid aspect ratio: %s\n", frame_aspect_ratio);
 +                exit_program(1);
 +            }
 +            ost->frame_aspect_ratio = av_q2d(q);
 +        }
 +
 +        video_enc->bits_per_raw_sample = frame_bits_per_raw_sample;
 +        MATCH_PER_STREAM_OPT(frame_pix_fmts, str, frame_pix_fmt, oc, st);
 +        if (frame_pix_fmt && (video_enc->pix_fmt = av_get_pix_fmt(frame_pix_fmt)) == PIX_FMT_NONE) {
 +            av_log(NULL, AV_LOG_FATAL, "Unknown pixel format requested: %s.\n", frame_pix_fmt);
 +            exit_program(1);
 +        }
 +        st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
 +
 +        if (intra_only)
 +            video_enc->gop_size = 0;
 +        MATCH_PER_STREAM_OPT(intra_matrices, str, intra_matrix, oc, st);
 +        if (intra_matrix) {
 +            if (!(video_enc->intra_matrix = av_mallocz(sizeof(*video_enc->intra_matrix) * 64))) {
 +                av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
 +                exit_program(1);
 +            }
 +            parse_matrix_coeffs(video_enc->intra_matrix, intra_matrix);
 +        }
 +        MATCH_PER_STREAM_OPT(inter_matrices, str, inter_matrix, oc, st);
 +        if (inter_matrix) {
 +            if (!(video_enc->inter_matrix = av_mallocz(sizeof(*video_enc->inter_matrix) * 64))) {
 +                av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for inter matrix.\n");
 +                exit_program(1);
 +            }
 +            parse_matrix_coeffs(video_enc->inter_matrix, inter_matrix);
 +        }
 +
 +        MATCH_PER_STREAM_OPT(rc_overrides, str, p, oc, st);
 +        for (i = 0; p; i++) {
 +            int start, end, q;
 +            int e = sscanf(p, "%d,%d,%d", &start, &end, &q);
 +            if (e != 3) {
 +                av_log(NULL, AV_LOG_FATAL, "error parsing rc_override\n");
 +                exit_program(1);
 +            }
 +            /* FIXME realloc failure */
 +            video_enc->rc_override =
 +                av_realloc(video_enc->rc_override,
 +                           sizeof(RcOverride) * (i + 1));
 +            video_enc->rc_override[i].start_frame = start;
 +            video_enc->rc_override[i].end_frame   = end;
 +            if (q > 0) {
 +                video_enc->rc_override[i].qscale         = q;
 +                video_enc->rc_override[i].quality_factor = 1.0;
 +            }
 +            else {
 +                video_enc->rc_override[i].qscale         = 0;
 +                video_enc->rc_override[i].quality_factor = -q/100.0;
 +            }
 +            p = strchr(p, '/');
 +            if (p) p++;
 +        }
 +        video_enc->rc_override_count = i;
 +        if (!video_enc->rc_initial_buffer_occupancy)
 +            video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size * 3 / 4;
 +        video_enc->intra_dc_precision = intra_dc_precision - 8;
 +
 +        if (do_psnr)
 +            video_enc->flags|= CODEC_FLAG_PSNR;
 +
 +        /* two pass mode */
 +        if (do_pass) {
 +            if (do_pass & 1) {
 +                video_enc->flags |= CODEC_FLAG_PASS1;
 +            }
 +            if (do_pass & 2) {
 +                video_enc->flags |= CODEC_FLAG_PASS2;
 +            }
 +        }
 +
 +        MATCH_PER_STREAM_OPT(forced_key_frames, str, forced_key_frames, oc, st);
 +        if (forced_key_frames)
 +            parse_forced_key_frames(forced_key_frames, ost);
 +
 +        MATCH_PER_STREAM_OPT(force_fps, i, ost->force_fps, oc, st);
 +
 +        ost->top_field_first = -1;
 +        MATCH_PER_STREAM_OPT(top_field_first, i, ost->top_field_first, oc, st);
 +
 +#if CONFIG_AVFILTER
 +        MATCH_PER_STREAM_OPT(filters, str, filters, oc, st);
 +        if (filters)
 +            ost->avfilter = av_strdup(filters);
 +#endif
 +    } else {
 +        MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc ,st);
 +    }
 +
 +    return ost;
 +}
 +
 +static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc)
 +{
 +    int n;
 +    AVStream *st;
 +    OutputStream *ost;
 +    AVCodecContext *audio_enc;
 +
 +    ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO);
 +    st  = ost->st;
 +
 +    audio_enc = st->codec;
 +    audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
 +
 +    if (!ost->stream_copy) {
 +        char *sample_fmt = NULL;
 +
 +        MATCH_PER_STREAM_OPT(audio_channels, i, audio_enc->channels, oc, st);
 +
 +        MATCH_PER_STREAM_OPT(sample_fmts, str, sample_fmt, oc, st);
 +        if (sample_fmt &&
 +            (audio_enc->sample_fmt = av_get_sample_fmt(sample_fmt)) == AV_SAMPLE_FMT_NONE) {
 +            av_log(NULL, AV_LOG_FATAL, "Invalid sample format '%s'\n", sample_fmt);
 +            exit_program(1);
 +        }
 +
 +        MATCH_PER_STREAM_OPT(audio_sample_rate, i, audio_enc->sample_rate, oc, st);
 +
 +        ost->rematrix_volume=1.0;
 +        MATCH_PER_STREAM_OPT(rematrix_volume, f, ost->rematrix_volume, oc, st);
 +    }
 +
 +    /* check for channel mapping for this audio stream */
 +    for (n = 0; n < o->nb_audio_channel_maps; n++) {
 +        AudioChannelMap *map = &o->audio_channel_maps[n];
 +        InputStream *ist = &input_streams[ost->source_index];
 +        if ((map->channel_idx == -1 || (ist->file_index == map->file_idx && ist->st->index == map->stream_idx)) &&
 +            (map->ofile_idx   == -1 || ost->file_index == map->ofile_idx) &&
 +            (map->ostream_idx == -1 || ost->st->index  == map->ostream_idx)) {
 +            if (ost->audio_channels_mapped < FF_ARRAY_ELEMS(ost->audio_channels_map))
 +                ost->audio_channels_map[ost->audio_channels_mapped++] = map->channel_idx;
 +            else
 +                av_log(NULL, AV_LOG_FATAL, "Max channel mapping for output %d.%d reached\n",
 +                       ost->file_index, ost->st->index);
 +        }
 +    }
 +
 +    return ost;
 +}
 +
 +static OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc)
 +{
 +    OutputStream *ost;
 +
 +    ost = new_output_stream(o, oc, AVMEDIA_TYPE_DATA);
 +    if (!ost->stream_copy) {
 +        av_log(NULL, AV_LOG_FATAL, "Data stream encoding not supported yet (only streamcopy)\n");
 +        exit_program(1);
 +    }
 +
 +    return ost;
 +}
 +
 +static OutputStream *new_attachment_stream(OptionsContext *o, AVFormatContext *oc)
 +{
 +    OutputStream *ost = new_output_stream(o, oc, AVMEDIA_TYPE_ATTACHMENT);
 +    ost->stream_copy = 1;
 +    return ost;
 +}
 +
 +static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc)
 +{
 +    AVStream *st;
 +    OutputStream *ost;
 +    AVCodecContext *subtitle_enc;
 +
 +    ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE);
 +    st  = ost->st;
 +    subtitle_enc = st->codec;
 +
 +    subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
 +
 +    return ost;
 +}
 +
 +/* arg format is "output-stream-index:streamid-value". */
 +static int opt_streamid(OptionsContext *o, const char *opt, const char *arg)
 +{
 +    int idx;
 +    char *p;
 +    char idx_str[16];
 +
 +    av_strlcpy(idx_str, arg, sizeof(idx_str));
 +    p = strchr(idx_str, ':');
 +    if (!p) {
 +        av_log(NULL, AV_LOG_FATAL,
 +               "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
 +               arg, opt);
 +        exit_program(1);
 +    }
 +    *p++ = '\0';
 +    idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, MAX_STREAMS-1);
 +    o->streamid_map = grow_array(o->streamid_map, sizeof(*o->streamid_map), &o->nb_streamid_map, idx+1);
 +    o->streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
 +    return 0;
 +}
 +
 +static int copy_chapters(InputFile *ifile, OutputFile *ofile, int copy_metadata)
 +{
 +    AVFormatContext *is = ifile->ctx;
 +    AVFormatContext *os = ofile->ctx;
 +    int i;
 +
 +    for (i = 0; i < is->nb_chapters; i++) {
 +        AVChapter *in_ch = is->chapters[i], *out_ch;
 +        int64_t ts_off   = av_rescale_q(ofile->start_time - ifile->ts_offset,
 +                                       AV_TIME_BASE_Q, in_ch->time_base);
 +        int64_t rt       = (ofile->recording_time == INT64_MAX) ? INT64_MAX :
 +                           av_rescale_q(ofile->recording_time, AV_TIME_BASE_Q, in_ch->time_base);
 +
 +
 +        if (in_ch->end < ts_off)
 +            continue;
 +        if (rt != INT64_MAX && in_ch->start > rt + ts_off)
 +            break;
 +
 +        out_ch = av_mallocz(sizeof(AVChapter));
 +        if (!out_ch)
 +            return AVERROR(ENOMEM);
 +
 +        out_ch->id        = in_ch->id;
 +        out_ch->time_base = in_ch->time_base;
 +        out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
 +        out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
 +
 +        if (copy_metadata)
 +            av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
 +
 +        os->nb_chapters++;
 +        os->chapters = av_realloc_f(os->chapters, os->nb_chapters, sizeof(AVChapter));
 +        if (!os->chapters)
 +            return AVERROR(ENOMEM);
 +        os->chapters[os->nb_chapters - 1] = out_ch;
 +    }
 +    return 0;
 +}
 +
 +static int read_ffserver_streams(OptionsContext *o, AVFormatContext *s, const char *filename)
 +{
 +    int i, err;
 +    AVFormatContext *ic = avformat_alloc_context();
 +
 +    ic->interrupt_callback = int_cb;
 +    err = avformat_open_input(&ic, filename, NULL, NULL);
 +    if (err < 0)
 +        return err;
 +    /* copy stream format */
 +    for(i=0;i<ic->nb_streams;i++) {
 +        AVStream *st;
 +        OutputStream *ost;
 +        AVCodec *codec;
 +        AVCodecContext *avctx;
 +
 +        codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
 +        ost   = new_output_stream(o, s, codec->type);
 +        st    = ost->st;
 +        avctx = st->codec;
 +        ost->enc = codec;
 +
 +        // FIXME: a more elegant solution is needed
 +        memcpy(st, ic->streams[i], sizeof(AVStream));
 +        st->info = av_malloc(sizeof(*st->info));
 +        memcpy(st->info, ic->streams[i]->info, sizeof(*st->info));
 +        st->codec= avctx;
 +        avcodec_copy_context(st->codec, ic->streams[i]->codec);
 +
 +        if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && !ost->stream_copy)
 +            choose_sample_fmt(st, codec);
 +        else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && !ost->stream_copy)
 +            choose_pixel_fmt(st, codec);
 +    }
 +
 +    avformat_close_input(&ic);
 +    return 0;
 +}
 +
 +static void opt_output_file(void *optctx, const char *filename)
 +{
 +    OptionsContext *o = optctx;
 +    AVFormatContext *oc;
 +    int i, err;
 +    AVOutputFormat *file_oformat;
 +    OutputStream *ost;
 +    InputStream  *ist;
 +
 +    if (!strcmp(filename, "-"))
 +        filename = "pipe:";
 +
 +    err = avformat_alloc_output_context2(&oc, NULL, o->format, filename);
 +    if (!oc) {
 +        print_error(filename, err);
 +        exit_program(1);
 +    }
 +    file_oformat= oc->oformat;
 +    oc->interrupt_callback = int_cb;
 +
 +    if (!strcmp(file_oformat->name, "ffm") &&
 +        av_strstart(filename, "http:", NULL)) {
 +        int j;
 +        /* special case for files sent to ffserver: we get the stream
 +           parameters from ffserver */
 +        int err = read_ffserver_streams(o, oc, filename);
 +        if (err < 0) {
 +            print_error(filename, err);
 +            exit_program(1);
 +        }
 +        for(j = nb_output_streams - oc->nb_streams; j < nb_output_streams; j++) {
 +            ost = &output_streams[j];
 +            for (i = 0; i < nb_input_streams; i++) {
 +                ist = &input_streams[i];
 +                if(ist->st->codec->codec_type == ost->st->codec->codec_type){
 +                    ost->sync_ist= ist;
 +                    ost->source_index= i;
 +                    ist->discard = 0;
 +                    break;
 +                }
 +            }
 +            if(!ost->sync_ist){
 +                av_log(NULL, AV_LOG_FATAL, "Missing %s stream which is required by this ffm\n", av_get_media_type_string(ost->st->codec->codec_type));
 +                exit_program(1);
 +            }
 +        }
 +    } else if (!o->nb_stream_maps) {
 +        /* pick the "best" stream of each type */
 +#define NEW_STREAM(type, index)\
 +        if (index >= 0) {\
 +            ost = new_ ## type ## _stream(o, oc);\
 +            ost->source_index = index;\
 +            ost->sync_ist     = &input_streams[index];\
 +            input_streams[index].discard = 0;\
 +        }
 +
 +        /* video: highest resolution */
 +        if (!o->video_disable && oc->oformat->video_codec != CODEC_ID_NONE) {
 +            int area = 0, idx = -1;
 +            for (i = 0; i < nb_input_streams; i++) {
 +                ist = &input_streams[i];
 +                if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
 +                    ist->st->codec->width * ist->st->codec->height > area) {
 +                    area = ist->st->codec->width * ist->st->codec->height;
 +                    idx = i;
 +                }
 +            }
 +            NEW_STREAM(video, idx);
 +        }
 +
 +        /* audio: most channels */
 +        if (!o->audio_disable && oc->oformat->audio_codec != CODEC_ID_NONE) {
 +            int channels = 0, idx = -1;
 +            for (i = 0; i < nb_input_streams; i++) {
 +                ist = &input_streams[i];
 +                if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
 +                    ist->st->codec->channels > channels) {
 +                    channels = ist->st->codec->channels;
 +                    idx = i;
 +                }
 +            }
 +            NEW_STREAM(audio, idx);
 +        }
 +
 +        /* subtitles: pick first */
 +        if (!o->subtitle_disable && (oc->oformat->subtitle_codec != CODEC_ID_NONE || subtitle_codec_name)) {
 +            for (i = 0; i < nb_input_streams; i++)
 +                if (input_streams[i].st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
 +                    NEW_STREAM(subtitle, i);
 +                    break;
 +                }
 +        }
 +        /* do something with data? */
 +    } else {
 +        for (i = 0; i < o->nb_stream_maps; i++) {
 +            StreamMap *map = &o->stream_maps[i];
 +
 +            if (map->disabled)
 +                continue;
 +
 +            ist = &input_streams[input_files[map->file_index].ist_index + map->stream_index];
 +            if(o->subtitle_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE)
 +                continue;
 +            if(o->   audio_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
 +                continue;
 +            if(o->   video_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
 +                continue;
 +            if(o->    data_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_DATA)
 +                continue;
 +
 +            switch (ist->st->codec->codec_type) {
 +            case AVMEDIA_TYPE_VIDEO:    ost = new_video_stream(o, oc);    break;
 +            case AVMEDIA_TYPE_AUDIO:    ost = new_audio_stream(o, oc);    break;
 +            case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream(o, oc); break;
 +            case AVMEDIA_TYPE_DATA:     ost = new_data_stream(o, oc);     break;
 +            case AVMEDIA_TYPE_ATTACHMENT: ost = new_attachment_stream(o, oc); break;
 +            default:
 +                av_log(NULL, AV_LOG_FATAL, "Cannot map stream #%d:%d - unsupported type.\n",
 +                       map->file_index, map->stream_index);
 +                exit_program(1);
 +            }
 +
 +            ost->source_index = input_files[map->file_index].ist_index + map->stream_index;
 +            ost->sync_ist     = &input_streams[input_files[map->sync_file_index].ist_index +
 +                                           map->sync_stream_index];
 +            ist->discard = 0;
 +        }
 +    }
 +
 +    /* handle attached files */
 +    for (i = 0; i < o->nb_attachments; i++) {
 +        AVIOContext *pb;
 +        uint8_t *attachment;
 +        const char *p;
 +        int64_t len;
 +
 +        if ((err = avio_open2(&pb, o->attachments[i], AVIO_FLAG_READ, &int_cb, NULL)) < 0) {
 +            av_log(NULL, AV_LOG_FATAL, "Could not open attachment file %s.\n",
 +                   o->attachments[i]);
 +            exit_program(1);
 +        }
 +        if ((len = avio_size(pb)) <= 0) {
 +            av_log(NULL, AV_LOG_FATAL, "Could not get size of the attachment %s.\n",
 +                   o->attachments[i]);
 +            exit_program(1);
 +        }
 +        if (!(attachment = av_malloc(len))) {
 +            av_log(NULL, AV_LOG_FATAL, "Attachment %s too large to fit into memory.\n",
 +                   o->attachments[i]);
 +            exit_program(1);
 +        }
 +        avio_read(pb, attachment, len);
 +
 +        ost = new_attachment_stream(o, oc);
 +        ost->stream_copy               = 0;
 +        ost->source_index              = -1;
 +        ost->attachment_filename       = o->attachments[i];
 +        ost->st->codec->extradata      = attachment;
 +        ost->st->codec->extradata_size = len;
 +
 +        p = strrchr(o->attachments[i], '/');
 +        av_dict_set(&ost->st->metadata, "filename", (p && *p) ? p + 1 : o->attachments[i], AV_DICT_DONT_OVERWRITE);
 +        avio_close(pb);
 +    }
 +
 +    output_files = grow_array(output_files, sizeof(*output_files), &nb_output_files, nb_output_files + 1);
 +    output_files[nb_output_files - 1].ctx       = oc;
 +    output_files[nb_output_files - 1].ost_index = nb_output_streams - oc->nb_streams;
 +    output_files[nb_output_files - 1].recording_time = o->recording_time;
 +    if (o->recording_time != INT64_MAX)
 +        oc->duration = o->recording_time;
 +    output_files[nb_output_files - 1].start_time     = o->start_time;
 +    output_files[nb_output_files - 1].limit_filesize = o->limit_filesize;
 +    av_dict_copy(&output_files[nb_output_files - 1].opts, format_opts, 0);
 +
 +    /* check filename in case of an image number is expected */
 +    if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
 +        if (!av_filename_number_test(oc->filename)) {
 +            print_error(oc->filename, AVERROR(EINVAL));
 +            exit_program(1);
 +        }
 +    }
 +
 +    if (!(oc->oformat->flags & AVFMT_NOFILE)) {
 +        /* test if it already exists to avoid losing precious files */
 +        assert_file_overwrite(filename);
 +
 +        /* open the file */
 +        if ((err = avio_open2(&oc->pb, filename, AVIO_FLAG_WRITE,
 +                              &oc->interrupt_callback,
 +                              &output_files[nb_output_files - 1].opts)) < 0) {
 +            print_error(filename, err);
 +            exit_program(1);
 +        }
 +    }
 +
 +    if (o->mux_preload) {
 +        uint8_t buf[64];
 +        snprintf(buf, sizeof(buf), "%d", (int)(o->mux_preload*AV_TIME_BASE));
 +        av_dict_set(&output_files[nb_output_files - 1].opts, "preload", buf, 0);
 +    }
 +    oc->max_delay = (int)(o->mux_max_delay * AV_TIME_BASE);
 +
 +    /* copy metadata */
 +    for (i = 0; i < o->nb_metadata_map; i++) {
 +        char *p;
 +        int in_file_index = strtol(o->metadata_map[i].u.str, &p, 0);
 +
 +        if (in_file_index < 0)
 +            continue;
 +        if (in_file_index >= nb_input_files) {
 +            av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d while processing metadata maps\n", in_file_index);
 +            exit_program(1);
 +        }
 +        copy_metadata(o->metadata_map[i].specifier, *p ? p + 1 : p, oc, input_files[in_file_index].ctx, o);
 +    }
 +
 +    /* copy chapters */
 +    if (o->chapters_input_file >= nb_input_files) {
 +        if (o->chapters_input_file == INT_MAX) {
 +            /* copy chapters from the first input file that has them*/
 +            o->chapters_input_file = -1;
 +            for (i = 0; i < nb_input_files; i++)
 +                if (input_files[i].ctx->nb_chapters) {
 +                    o->chapters_input_file = i;
 +                    break;
 +                }
 +        } else {
 +            av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d in chapter mapping.\n",
 +                   o->chapters_input_file);
 +            exit_program(1);
 +        }
 +    }
 +    if (o->chapters_input_file >= 0)
 +        copy_chapters(&input_files[o->chapters_input_file], &output_files[nb_output_files - 1],
 +                      !o->metadata_chapters_manual);
 +
 +    /* copy global metadata by default */
 +    if (!o->metadata_global_manual && nb_input_files){
 +        av_dict_copy(&oc->metadata, input_files[0].ctx->metadata,
 +                     AV_DICT_DONT_OVERWRITE);
 +        if(o->recording_time != INT64_MAX)
 +            av_dict_set(&oc->metadata, "duration", NULL, 0);
 +    }
 +    if (!o->metadata_streams_manual)
 +        for (i = output_files[nb_output_files - 1].ost_index; i < nb_output_streams; i++) {
 +            InputStream *ist;
 +            if (output_streams[i].source_index < 0)         /* this is true e.g. for attached files */
 +                continue;
 +            ist = &input_streams[output_streams[i].source_index];
 +            av_dict_copy(&output_streams[i].st->metadata, ist->st->metadata, AV_DICT_DONT_OVERWRITE);
 +        }
 +
 +    /* process manually set metadata */
 +    for (i = 0; i < o->nb_metadata; i++) {
 +        AVDictionary **m;
 +        char type, *val;
 +        const char *stream_spec;
 +        int index = 0, j, ret = 0;
 +
 +        val = strchr(o->metadata[i].u.str, '=');
 +        if (!val) {
 +            av_log(NULL, AV_LOG_FATAL, "No '=' character in metadata string %s.\n",
 +                   o->metadata[i].u.str);
 +            exit_program(1);
 +        }
 +        *val++ = 0;
 +
 +        parse_meta_type(o->metadata[i].specifier, &type, &index, &stream_spec);
 +        if (type == 's') {
 +            for (j = 0; j < oc->nb_streams; j++) {
 +                if ((ret = check_stream_specifier(oc, oc->streams[j], stream_spec)) > 0) {
 +                    av_dict_set(&oc->streams[j]->metadata, o->metadata[i].u.str, *val ? val : NULL, 0);
 +                } else if (ret < 0)
 +                    exit_program(1);
 +            }
 +            printf("ret %d, stream_spec %s\n", ret, stream_spec);
 +        }
 +        else {
 +            switch (type) {
 +            case 'g':
 +                m = &oc->metadata;
 +                break;
 +            case 'c':
 +                if (index < 0 || index >= oc->nb_chapters) {
 +                    av_log(NULL, AV_LOG_FATAL, "Invalid chapter index %d in metadata specifier.\n", index);
 +                    exit_program(1);
 +                }
 +                m = &oc->chapters[index]->metadata;
 +                break;
 +            default:
 +                av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", o->metadata[i].specifier);
 +                exit_program(1);
 +            }
 +            av_dict_set(m, o->metadata[i].u.str, *val ? val : NULL, 0);
 +        }
 +    }
 +
 +    reset_options(o, 0);
 +}
 +
 +/* same option as mencoder */
 +static int opt_pass(const char *opt, const char *arg)
 +{
 +    do_pass = parse_number_or_die(opt, arg, OPT_INT, 1, 3);
 +    return 0;
 +}
 +
 +static int64_t getutime(void)
 +{
 +#if HAVE_GETRUSAGE
 +    struct rusage rusage;
 +
 +    getrusage(RUSAGE_SELF, &rusage);
 +    return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
 +#elif HAVE_GETPROCESSTIMES
 +    HANDLE proc;
 +    FILETIME c, e, k, u;
 +    proc = GetCurrentProcess();
 +    GetProcessTimes(proc, &c, &e, &k, &u);
 +    return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
 +#else
 +    return av_gettime();
 +#endif
 +}
 +
 +static int64_t getmaxrss(void)
 +{
 +#if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
 +    struct rusage rusage;
 +    getrusage(RUSAGE_SELF, &rusage);
 +    return (int64_t)rusage.ru_maxrss * 1024;
 +#elif HAVE_GETPROCESSMEMORYINFO
 +    HANDLE proc;
 +    PROCESS_MEMORY_COUNTERS memcounters;
 +    proc = GetCurrentProcess();
 +    memcounters.cb = sizeof(memcounters);
 +    GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
 +    return memcounters.PeakPagefileUsage;
 +#else
 +    return 0;
 +#endif
 +}
 +
 +static int opt_audio_qscale(OptionsContext *o, const char *opt, const char *arg)
 +{
 +    return parse_option(o, "q:a", arg, options);
 +}
 +
 +static void show_usage(void)
 +{
 +    av_log(NULL, AV_LOG_INFO, "Hyper fast Audio and Video encoder\n");
 +    av_log(NULL, AV_LOG_INFO, "usage: %s [options] [[infile options] -i infile]... {[outfile options] outfile}...\n", program_name);
 +    av_log(NULL, AV_LOG_INFO, "\n");
 +}
 +
 +static int opt_help(const char *opt, const char *arg)
 +{
 +    int flags = AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM;
 +    av_log_set_callback(log_callback_help);
 +    show_usage();
 +    show_help_options(options, "Main options:\n",
 +                      OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE | OPT_GRAB, 0);
 +    show_help_options(options, "\nAdvanced options:\n",
 +                      OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE | OPT_GRAB,
 +                      OPT_EXPERT);
 +    show_help_options(options, "\nVideo options:\n",
 +                      OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
 +                      OPT_VIDEO);
 +    show_help_options(options, "\nAdvanced Video options:\n",
 +                      OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
 +                      OPT_VIDEO | OPT_EXPERT);
 +    show_help_options(options, "\nAudio options:\n",
 +                      OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
 +                      OPT_AUDIO);
 +    show_help_options(options, "\nAdvanced Audio options:\n",
 +                      OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
 +                      OPT_AUDIO | OPT_EXPERT);
 +    show_help_options(options, "\nSubtitle options:\n",
 +                      OPT_SUBTITLE | OPT_GRAB,
 +                      OPT_SUBTITLE);
 +    show_help_options(options, "\nAudio/Video grab options:\n",
 +                      OPT_GRAB,
 +                      OPT_GRAB);
 +    printf("\n");
 +    show_help_children(avcodec_get_class(), flags);
 +    show_help_children(avformat_get_class(), flags);
 +    show_help_children(sws_get_class(), flags);
 +
 +    return 0;
 +}
 +
 +static int opt_target(OptionsContext *o, const char *opt, const char *arg)
 +{
 +    enum { PAL, NTSC, FILM, UNKNOWN } norm = UNKNOWN;
 +    static const char *const frame_rates[] = { "25", "30000/1001", "24000/1001" };
 +
 +    if (!strncmp(arg, "pal-", 4)) {
 +        norm = PAL;
 +        arg += 4;
 +    } else if (!strncmp(arg, "ntsc-", 5)) {
 +        norm = NTSC;
 +        arg += 5;
 +    } else if (!strncmp(arg, "film-", 5)) {
 +        norm = FILM;
 +        arg += 5;
 +    } else {
 +        /* Try to determine PAL/NTSC by peeking in the input files */
 +        if (nb_input_files) {
 +            int i, j, fr;
 +            for (j = 0; j < nb_input_files; j++) {
 +                for (i = 0; i < input_files[j].nb_streams; i++) {
 +                    AVCodecContext *c = input_files[j].ctx->streams[i]->codec;
 +                    if (c->codec_type != AVMEDIA_TYPE_VIDEO)
 +                        continue;
 +                    fr = c->time_base.den * 1000 / c->time_base.num;
 +                    if (fr == 25000) {
 +                        norm = PAL;
 +                        break;
 +                    } else if ((fr == 29970) || (fr == 23976)) {
 +                        norm = NTSC;
 +                        break;
 +                    }
 +                }
 +                if (norm != UNKNOWN)
 +                    break;
 +            }
 +        }
 +        if (norm != UNKNOWN)
 +            av_log(NULL, AV_LOG_INFO, "Assuming %s for target.\n", norm == PAL ? "PAL" : "NTSC");
 +    }
 +
 +    if (norm == UNKNOWN) {
 +        av_log(NULL, AV_LOG_FATAL, "Could not determine norm (PAL/NTSC/NTSC-Film) for target.\n");
 +        av_log(NULL, AV_LOG_FATAL, "Please prefix target with \"pal-\", \"ntsc-\" or \"film-\",\n");
 +        av_log(NULL, AV_LOG_FATAL, "or set a framerate with \"-r xxx\".\n");
 +        exit_program(1);
 +    }
 +
 +    if (!strcmp(arg, "vcd")) {
 +        opt_video_codec(o, "c:v", "mpeg1video");
 +        opt_audio_codec(o, "c:a", "mp2");
 +        parse_option(o, "f", "vcd", options);
 +
 +        parse_option(o, "s", norm == PAL ? "352x288" : "352x240", options);
 +        parse_option(o, "r", frame_rates[norm], options);
 +        opt_default("g", norm == PAL ? "15" : "18");
 +
 +        opt_default("b:v", "1150000");
 +        opt_default("maxrate", "1150000");
 +        opt_default("minrate", "1150000");
 +        opt_default("bufsize", "327680"); // 40*1024*8;
 +
 +        opt_default("b:a", "224000");
 +        parse_option(o, "ar", "44100", options);
 +        parse_option(o, "ac", "2", options);
 +
 +        opt_default("packetsize", "2324");
 +        opt_default("muxrate", "1411200"); // 2352 * 75 * 8;
 +
 +        /* We have to offset the PTS, so that it is consistent with the SCR.
 +           SCR starts at 36000, but the first two packs contain only padding
 +           and the first pack from the other stream, respectively, may also have
 +           been written before.
 +           So the real data starts at SCR 36000+3*1200. */
 +        o->mux_preload = (36000 + 3 * 1200) / 90000.0; // 0.44
 +    } else if (!strcmp(arg, "svcd")) {
 +
 +        opt_video_codec(o, "c:v", "mpeg2video");
 +        opt_audio_codec(o, "c:a", "mp2");
 +        parse_option(o, "f", "svcd", options);
 +
 +        parse_option(o, "s", norm == PAL ? "480x576" : "480x480", options);
 +        parse_option(o, "r", frame_rates[norm], options);
 +        parse_option(o, "pix_fmt", "yuv420p", options);
 +        opt_default("g", norm == PAL ? "15" : "18");
 +
 +        opt_default("b:v", "2040000");
 +        opt_default("maxrate", "2516000");
 +        opt_default("minrate", "0"); // 1145000;
 +        opt_default("bufsize", "1835008"); // 224*1024*8;
 +        opt_default("flags", "+scan_offset");
 +
 +
 +        opt_default("b:a", "224000");
 +        parse_option(o, "ar", "44100", options);
 +
 +        opt_default("packetsize", "2324");
 +
 +    } else if (!strcmp(arg, "dvd")) {
 +
 +        opt_video_codec(o, "c:v", "mpeg2video");
 +        opt_audio_codec(o, "c:a", "ac3");
 +        parse_option(o, "f", "dvd", options);
 +
 +        parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
 +        parse_option(o, "r", frame_rates[norm], options);
 +        parse_option(o, "pix_fmt", "yuv420p", options);
 +        opt_default("g", norm == PAL ? "15" : "18");
 +
 +        opt_default("b:v", "6000000");
 +        opt_default("maxrate", "9000000");
 +        opt_default("minrate", "0"); // 1500000;
 +        opt_default("bufsize", "1835008"); // 224*1024*8;
 +
 +        opt_default("packetsize", "2048");  // from www.mpucoder.com: DVD sectors contain 2048 bytes of data, this is also the size of one pack.
 +        opt_default("muxrate", "10080000"); // from mplex project: data_rate = 1260000. mux_rate = data_rate * 8
 +
 +        opt_default("b:a", "448000");
 +        parse_option(o, "ar", "48000", options);
 +
 +    } else if (!strncmp(arg, "dv", 2)) {
 +
 +        parse_option(o, "f", "dv", options);
 +
 +        parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
 +        parse_option(o, "pix_fmt", !strncmp(arg, "dv50", 4) ? "yuv422p" :
 +                          norm == PAL ? "yuv420p" : "yuv411p", options);
 +        parse_option(o, "r", frame_rates[norm], options);
 +
 +        parse_option(o, "ar", "48000", options);
 +        parse_option(o, "ac", "2", options);
 +
 +    } else {
 +        av_log(NULL, AV_LOG_ERROR, "Unknown target: %s\n", arg);
 +        return AVERROR(EINVAL);
 +    }
 +    return 0;
 +}
 +
 +static int opt_vstats_file(const char *opt, const char *arg)
 +{
 +    av_free (vstats_filename);
 +    vstats_filename = av_strdup (arg);
 +    return 0;
 +}
 +
 +static int opt_vstats(const char *opt, const char *arg)
 +{
 +    char filename[40];
 +    time_t today2 = time(NULL);
 +    struct tm *today = localtime(&today2);
 +
 +    snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
 +             today->tm_sec);
 +    return opt_vstats_file(opt, filename);
 +}
 +
 +static int opt_video_frames(OptionsContext *o, const char *opt, const char *arg)
 +{
 +    return parse_option(o, "frames:v", arg, options);
 +}
 +
 +static int opt_audio_frames(OptionsContext *o, const char *opt, const char *arg)
 +{
 +    return parse_option(o, "frames:a", arg, options);
 +}
 +
 +static int opt_data_frames(OptionsContext *o, const char *opt, const char *arg)
 +{
 +    return parse_option(o, "frames:d", arg, options);
 +}
 +
 +static int opt_preset(OptionsContext *o, const char *opt, const char *arg)
 +{
 +    FILE *f=NULL;
 +    char filename[1000], tmp[1000], tmp2[1000], line[1000];
 +    const char *codec_name = *opt == 'v' ? video_codec_name :
 +                             *opt == 'a' ? audio_codec_name :
 +                                           subtitle_codec_name;
 +
 +    if (!(f = get_preset_file(filename, sizeof(filename), arg, *opt == 'f', codec_name))) {
 +        if(!strncmp(arg, "libx264-lossless", strlen("libx264-lossless"))){
 +            av_log(NULL, AV_LOG_FATAL, "Please use -preset <speed> -qp 0\n");
 +        }else
 +            av_log(NULL, AV_LOG_FATAL, "File for preset '%s' not found\n", arg);
 +        exit_program(1);
 +    }
 +
 +    while(!feof(f)){
 +        int e= fscanf(f, "%999[^\n]\n", line) - 1;
 +        if(line[0] == '#' && !e)
 +            continue;
 +        e|= sscanf(line, "%999[^=]=%999[^\n]\n", tmp, tmp2) - 2;
 +        if(e){
 +            av_log(NULL, AV_LOG_FATAL, "%s: Invalid syntax: '%s'\n", filename, line);
 +            exit_program(1);
 +        }
 +        if(!strcmp(tmp, "acodec")){
 +            opt_audio_codec(o, tmp, tmp2);
 +        }else if(!strcmp(tmp, "vcodec")){
 +            opt_video_codec(o, tmp, tmp2);
 +        }else if(!strcmp(tmp, "scodec")){
 +            opt_subtitle_codec(o, tmp, tmp2);
 +        }else if(!strcmp(tmp, "dcodec")){
 +            opt_data_codec(o, tmp, tmp2);
 +        }else if(opt_default(tmp, tmp2) < 0){
 +            av_log(NULL, AV_LOG_FATAL, "%s: Invalid option or argument: '%s', parsed as '%s' = '%s'\n", filename, line, tmp, tmp2);
 +            exit_program(1);
 +        }
 +    }
 +
 +    fclose(f);
 +
 +    return 0;
 +}
 +
 +static void log_callback_null(void *ptr, int level, const char *fmt, va_list vl)
 +{
 +}
 +
 +static int opt_passlogfile(const char *opt, const char *arg)
 +{
 +    pass_logfilename_prefix = arg;
 +#if CONFIG_LIBX264_ENCODER
 +    return opt_default(opt, arg);
 +#else
 +    return 0;
 +#endif
 +}
 +
 +static int opt_old2new(OptionsContext *o, const char *opt, const char *arg)
 +{
 +    char *s = av_asprintf("%s:%c", opt + 1, *opt);
 +    int ret = parse_option(o, s, arg, options);
 +    av_free(s);
 +    return ret;
 +}
 +
 +static int opt_bitrate(OptionsContext *o, const char *opt, const char *arg)
 +{
 +    if(!strcmp(opt, "b")){
 +        av_log(NULL, AV_LOG_WARNING, "Please use -b:a or -b:v, -b is ambiguous\n");
 +        return parse_option(o, "b:v", arg, options);
 +    }
 +    return opt_default(opt, arg);
 +}
 +
 +static int opt_qscale(OptionsContext *o, const char *opt, const char *arg)
 +{
 +    char *s;
 +    int ret;
 +    if(!strcmp(opt, "qscale")){
 +        av_log(NULL, AV_LOG_WARNING, "Please use -q:a or -q:v, -qscale is ambiguous\n");
 +        return parse_option(o, "q:v", arg, options);
 +    }
 +    s = av_asprintf("q%s", opt + 6);
 +    ret = parse_option(o, s, arg, options);
 +    av_free(s);
 +    return ret;
 +}
 +
 +static int opt_video_filters(OptionsContext *o, const char *opt, const char *arg)
 +{
 +    return parse_option(o, "filter:v", arg, options);
 +}
 +
 +static int opt_vsync(const char *opt, const char *arg)
 +{
 +    if      (!av_strcasecmp(arg, "cfr"))         video_sync_method = VSYNC_CFR;
 +    else if (!av_strcasecmp(arg, "vfr"))         video_sync_method = VSYNC_VFR;
 +    else if (!av_strcasecmp(arg, "passthrough")) video_sync_method = VSYNC_PASSTHROUGH;
 +    else if (!av_strcasecmp(arg, "drop"))        video_sync_method = VSYNC_DROP;
 +
 +    if (video_sync_method == VSYNC_AUTO)
 +        video_sync_method = parse_number_or_die("vsync", arg, OPT_INT, VSYNC_AUTO, VSYNC_VFR);
 +    return 0;
 +}
 +
 +static int opt_deinterlace(const char *opt, const char *arg)
 +{
 +    av_log(NULL, AV_LOG_WARNING, "-%s is deprecated, use -filter:v yadif instead\n", opt);
 +    do_deinterlace = 1;
 +    return 0;
 +}
 +
 +#define OFFSET(x) offsetof(OptionsContext, x)
 +static const OptionDef options[] = {
 +    /* main options */
 +#include "cmdutils_common_opts.h"
 +    { "f", HAS_ARG | OPT_STRING | OPT_OFFSET, {.off = OFFSET(format)}, "force format", "fmt" },
 +    { "i", HAS_ARG | OPT_FUNC2, {(void*)opt_input_file}, "input file name", "filename" },
 +    { "y", OPT_BOOL, {(void*)&file_overwrite}, "overwrite output files" },
 +    { "n", OPT_BOOL, {(void*)&no_file_overwrite}, "do not overwrite output files" },
 +    { "c", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(codec_names)}, "codec name", "codec" },
 +    { "codec", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(codec_names)}, "codec name", "codec" },
 +    { "pre", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(presets)}, "preset name", "preset" },
 +    { "map", HAS_ARG | OPT_EXPERT | OPT_FUNC2, {(void*)opt_map}, "set input stream mapping", "[-]input_file_id[:stream_specifier][,sync_file_id[:stream_specifier]]" },
 +    { "map_channel", HAS_ARG | OPT_EXPERT | OPT_FUNC2, {(void*)opt_map_channel}, "map an audio channel from one stream to another", "file.stream.channel[:syncfile.syncstream]" },
 +    { "map_metadata", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(metadata_map)}, "set metadata information of outfile from infile",
 +      "outfile[,metadata]:infile[,metadata]" },
 +    { "map_chapters",  OPT_INT | HAS_ARG | OPT_EXPERT | OPT_OFFSET, {.off = OFFSET(chapters_input_file)},  "set chapters mapping", "input_file_index" },
 +    { "t", HAS_ARG | OPT_TIME | OPT_OFFSET, {.off = OFFSET(recording_time)}, "record or transcode \"duration\" seconds of audio/video", "duration" },
 +    { "fs", HAS_ARG | OPT_INT64 | OPT_OFFSET, {.off = OFFSET(limit_filesize)}, "set the limit file size in bytes", "limit_size" }, //
 +    { "ss", HAS_ARG | OPT_TIME | OPT_OFFSET, {.off = OFFSET(start_time)}, "set the start time offset", "time_off" },
 +    { "itsoffset", HAS_ARG | OPT_TIME | OPT_OFFSET, {.off = OFFSET(input_ts_offset)}, "set the input ts offset", "time_off" },
 +    { "itsscale", HAS_ARG | OPT_DOUBLE | OPT_SPEC, {.off = OFFSET(ts_scale)}, "set the input ts scale", "scale" },
 +    { "timestamp", HAS_ARG | OPT_FUNC2, {(void*)opt_recording_timestamp}, "set the recording timestamp ('now' to set the current time)", "time" },
 +    { "metadata", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(metadata)}, "add metadata", "string=string" },
 +    { "dframes", HAS_ARG | OPT_FUNC2, {(void*)opt_data_frames}, "set the number of data frames to record", "number" },
 +    { "benchmark", OPT_BOOL | OPT_EXPERT, {(void*)&do_benchmark},
 +      "add timings for benchmarking" },
 +    { "timelimit", HAS_ARG, {(void*)opt_timelimit}, "set max runtime in seconds", "limit" },
 +    { "dump", OPT_BOOL | OPT_EXPERT, {(void*)&do_pkt_dump},
 +      "dump each input packet" },
 +    { "hex", OPT_BOOL | OPT_EXPERT, {(void*)&do_hex_dump},
 +      "when dumping packets, also dump the payload" },
 +    { "re", OPT_BOOL | OPT_EXPERT | OPT_OFFSET, {.off = OFFSET(rate_emu)}, "read input at native frame rate", "" },
 +    { "target", HAS_ARG | OPT_FUNC2, {(void*)opt_target}, "specify target file type (\"vcd\", \"svcd\", \"dvd\", \"dv\", \"dv50\", \"pal-vcd\", \"ntsc-svcd\", ...)", "type" },
 +    { "vsync", HAS_ARG | OPT_EXPERT, {(void*)opt_vsync}, "video sync method", "" },
 +    { "async", HAS_ARG | OPT_INT | OPT_EXPERT, {(void*)&audio_sync_method}, "audio sync method", "" },
 +    { "adrift_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, {(void*)&audio_drift_threshold}, "audio drift threshold", "threshold" },
 +    { "copyts", OPT_BOOL | OPT_EXPERT, {(void*)&copy_ts}, "copy timestamps" },
 +    { "copytb", HAS_ARG | OPT_INT | OPT_EXPERT, {(void*)&copy_tb}, "copy input stream time base when stream copying", "source" },
 +    { "shortest", OPT_BOOL | OPT_EXPERT, {(void*)&opt_shortest}, "finish encoding within shortest input" }, //
 +    { "dts_delta_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, {(void*)&dts_delta_threshold}, "timestamp discontinuity delta threshold", "threshold" },
 +    { "dts_error_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, {(void*)&dts_error_threshold}, "timestamp error delta threshold", "threshold" },
 +    { "xerror", OPT_BOOL, {(void*)&exit_on_error}, "exit on error", "error" },
 +    { "copyinkf", OPT_BOOL | OPT_EXPERT | OPT_SPEC, {.off = OFFSET(copy_initial_nonkeyframes)}, "copy initial non-keyframes" },
 +    { "frames", OPT_INT64 | HAS_ARG | OPT_SPEC, {.off = OFFSET(max_frames)}, "set the number of frames to record", "number" },
 +    { "tag",   OPT_STRING | HAS_ARG | OPT_SPEC, {.off = OFFSET(codec_tags)}, "force codec tag/fourcc", "fourcc/tag" },
 +    { "q", HAS_ARG | OPT_EXPERT | OPT_DOUBLE | OPT_SPEC, {.off = OFFSET(qscale)}, "use fixed quality scale (VBR)", "q" },
 +    { "qscale", HAS_ARG | OPT_EXPERT | OPT_FUNC2, {(void*)opt_qscale}, "use fixed quality scale (VBR)", "q" },
 +#if CONFIG_AVFILTER
 +    { "filter", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(filters)}, "set stream filterchain", "filter_list" },
 +#endif
 +    { "stats", OPT_BOOL, {&print_stats}, "print progress report during encoding", },
 +    { "attach", HAS_ARG | OPT_FUNC2, {(void*)opt_attach}, "add an attachment to the output file", "filename" },
 +    { "dump_attachment", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(dump_attachment)}, "extract an attachment into a file", "filename" },
 +    { "debug_ts", OPT_BOOL | OPT_EXPERT, {&debug_ts}, "print timestamp debugging info" },
 +
 +    /* video options */
 +    { "vframes", HAS_ARG | OPT_VIDEO | OPT_FUNC2, {(void*)opt_video_frames}, "set the number of video frames to record", "number" },
 +    { "r", HAS_ARG | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(frame_rates)}, "set frame rate (Hz value, fraction or abbreviation)", "rate" },
 +    { "s", HAS_ARG | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(frame_sizes)}, "set frame size (WxH or abbreviation)", "size" },
 +    { "aspect", HAS_ARG | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(frame_aspect_ratios)}, "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" },
 +    { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(frame_pix_fmts)}, "set pixel format", "format" },
 +    { "bits_per_raw_sample", OPT_INT | HAS_ARG | OPT_VIDEO, {(void*)&frame_bits_per_raw_sample}, "set the number of bits per raw sample", "number" },
 +    { "croptop",  HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop}, "Removed, use the crop filter instead", "size" },
 +    { "cropbottom", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop}, "Removed, use the crop filter instead", "size" },
 +    { "cropleft", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop}, "Removed, use the crop filter instead", "size" },
 +    { "cropright", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_crop}, "Removed, use the crop filter instead", "size" },
 +    { "padtop", HAS_ARG | OPT_VIDEO, {(void*)opt_pad}, "Removed, use the pad filter instead", "size" },
 +    { "padbottom", HAS_ARG | OPT_VIDEO, {(void*)opt_pad}, "Removed, use the pad filter instead", "size" },
 +    { "padleft", HAS_ARG | OPT_VIDEO, {(void*)opt_pad}, "Removed, use the pad filter instead", "size" },
 +    { "padright", HAS_ARG | OPT_VIDEO, {(void*)opt_pad}, "Removed, use the pad filter instead", "size" },
 +    { "padcolor", HAS_ARG | OPT_VIDEO, {(void*)opt_pad}, "Removed, use the pad filter instead", "color" },
 +    { "intra", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&intra_only}, "use only intra frames"},
 +    { "vn", OPT_BOOL | OPT_VIDEO | OPT_OFFSET, {.off = OFFSET(video_disable)}, "disable video" },
 +    { "vdt", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)&video_discard}, "discard threshold", "n" },
 +    { "rc_override", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(rc_overrides)}, "rate control override for specific intervals", "override" },
 +    { "vcodec", HAS_ARG | OPT_VIDEO | OPT_FUNC2, {(void*)opt_video_codec}, "force video codec ('copy' to copy stream)", "codec" },
 +    { "sameq", OPT_BOOL | OPT_VIDEO, {(void*)&same_quant}, "use same quantizer as source (implies VBR)" },
 +    { "same_quant", OPT_BOOL | OPT_VIDEO, {(void*)&same_quant},
 +      "use same quantizer as source (implies VBR)" },
 +    { "pass", HAS_ARG | OPT_VIDEO, {(void*)opt_pass}, "select the pass number (1 or 2)", "n" },
 +    { "passlogfile", HAS_ARG | OPT_VIDEO, {(void*)&opt_passlogfile}, "select two pass log file name prefix", "prefix" },
 +    { "deinterlace", OPT_EXPERT | OPT_VIDEO, {(void*)opt_deinterlace},
 +      "this option is deprecated, use the yadif filter instead" },
 +    { "psnr", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&do_psnr}, "calculate PSNR of compressed frames" },
 +    { "vstats", OPT_EXPERT | OPT_VIDEO, {(void*)&opt_vstats}, "dump video coding statistics to file" },
 +    { "vstats_file", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_vstats_file}, "dump video coding statistics to file", "file" },
 +#if CONFIG_AVFILTER
 +    { "vf", HAS_ARG | OPT_VIDEO | OPT_FUNC2, {(void*)opt_video_filters}, "video filters", "filter list" },
 +#endif
 +    { "intra_matrix", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(intra_matrices)}, "specify intra matrix coeffs", "matrix" },
 +    { "inter_matrix", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(inter_matrices)}, "specify inter matrix coeffs", "matrix" },
 +    { "top", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_INT| OPT_SPEC, {.off = OFFSET(top_field_first)}, "top=1/bottom=0/auto=-1 field first", "" },
 +    { "dc", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)&intra_dc_precision}, "intra_dc_precision", "precision" },
 +    { "vtag", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_FUNC2, {(void*)opt_old2new}, "force video tag/fourcc", "fourcc/tag" },
 +    { "qphist", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, { (void *)&qp_hist }, "show QP histogram" },
 +    { "force_fps", OPT_BOOL | OPT_EXPERT | OPT_VIDEO | OPT_SPEC, {.off = OFFSET(force_fps)}, "force the selected framerate, disable the best supported framerate selection" },
 +    { "streamid", HAS_ARG | OPT_EXPERT | OPT_FUNC2, {(void*)opt_streamid}, "set the value of an outfile streamid", "streamIndex:value" },
 +    { "force_key_frames", OPT_STRING | HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_SPEC, {.off = OFFSET(forced_key_frames)}, "force key frames at specified timestamps", "timestamps" },
 +    { "b", HAS_ARG | OPT_VIDEO | OPT_FUNC2, {(void*)opt_bitrate}, "video bitrate (please use -b:v)", "bitrate" },
 +
 +    /* audio options */
 +    { "aframes", HAS_ARG | OPT_AUDIO | OPT_FUNC2, {(void*)opt_audio_frames}, "set the number of audio frames to record", "number" },
 +    { "aq", HAS_ARG | OPT_AUDIO | OPT_FUNC2, {(void*)opt_audio_qscale}, "set audio quality (codec-specific)", "quality", },
 +    { "ar", HAS_ARG | OPT_AUDIO | OPT_INT | OPT_SPEC, {.off = OFFSET(audio_sample_rate)}, "set audio sampling rate (in Hz)", "rate" },
 +    { "ac", HAS_ARG | OPT_AUDIO | OPT_INT | OPT_SPEC, {.off = OFFSET(audio_channels)}, "set number of audio channels", "channels" },
 +    { "an", OPT_BOOL | OPT_AUDIO | OPT_OFFSET, {.off = OFFSET(audio_disable)}, "disable audio" },
 +    { "acodec", HAS_ARG | OPT_AUDIO | OPT_FUNC2, {(void*)opt_audio_codec}, "force audio codec ('copy' to copy stream)", "codec" },
 +    { "atag", HAS_ARG | OPT_EXPERT | OPT_AUDIO | OPT_FUNC2, {(void*)opt_old2new}, "force audio tag/fourcc", "fourcc/tag" },
 +    { "vol", OPT_INT | HAS_ARG | OPT_AUDIO, {(void*)&audio_volume}, "change audio volume (256=normal)" , "volume" }, //
 +    { "sample_fmt", HAS_ARG | OPT_EXPERT | OPT_AUDIO | OPT_SPEC | OPT_STRING, {.off = OFFSET(sample_fmts)}, "set sample format", "format" },
 +    { "rmvol", HAS_ARG | OPT_AUDIO | OPT_FLOAT | OPT_SPEC, {.off = OFFSET(rematrix_volume)}, "rematrix volume (as factor)", "volume" },
 +
 +    /* subtitle options */
 +    { "sn", OPT_BOOL | OPT_SUBTITLE | OPT_OFFSET, {.off = OFFSET(subtitle_disable)}, "disable subtitle" },
 +    { "scodec", HAS_ARG | OPT_SUBTITLE | OPT_FUNC2, {(void*)opt_subtitle_codec}, "force subtitle codec ('copy' to copy stream)", "codec" },
 +    { "stag", HAS_ARG | OPT_EXPERT | OPT_SUBTITLE | OPT_FUNC2, {(void*)opt_old2new}, "force subtitle tag/fourcc", "fourcc/tag" },
 +
 +    /* grab options */
 +    { "vc", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_GRAB, {(void*)opt_video_channel}, "deprecated, use -channel", "channel" },
 +    { "tvstd", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_GRAB, {(void*)opt_video_standard}, "deprecated, use -standard", "standard" },
 +    { "isync", OPT_BOOL | OPT_EXPERT | OPT_GRAB, {(void*)&input_sync}, "sync read on input", "" },
 +
 +    /* muxer options */
 +    { "muxdelay", OPT_FLOAT | HAS_ARG | OPT_EXPERT   | OPT_OFFSET, {.off = OFFSET(mux_max_delay)}, "set the maximum demux-decode delay", "seconds" },
 +    { "muxpreload", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET, {.off = OFFSET(mux_preload)},   "set the initial demux-decode delay", "seconds" },
 +
 +    { "bsf", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(bitstream_filters)}, "A comma-separated list of bitstream filters", "bitstream_filters" },
 +    { "absf", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_FUNC2, {(void*)opt_old2new}, "deprecated", "audio bitstream_filters" },
 +    { "vbsf", HAS_ARG | OPT_VIDEO | OPT_EXPERT| OPT_FUNC2, {(void*)opt_old2new}, "deprecated", "video bitstream_filters" },
 +
 +    { "apre", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_FUNC2, {(void*)opt_preset}, "set the audio options to the indicated preset", "preset" },
 +    { "vpre", HAS_ARG | OPT_VIDEO | OPT_EXPERT| OPT_FUNC2, {(void*)opt_preset}, "set the video options to the indicated preset", "preset" },
 +    { "spre", HAS_ARG | OPT_SUBTITLE | OPT_EXPERT| OPT_FUNC2, {(void*)opt_preset}, "set the subtitle options to the indicated preset", "preset" },
 +    { "fpre", HAS_ARG | OPT_EXPERT| OPT_FUNC2, {(void*)opt_preset}, "set options from indicated preset file", "filename" },
 +    /* data codec support */
 +    { "dcodec", HAS_ARG | OPT_DATA | OPT_FUNC2, {(void*)opt_data_codec}, "force data codec ('copy' to copy stream)", "codec" },
 +    { "dn", OPT_BOOL | OPT_VIDEO | OPT_OFFSET, {.off = OFFSET(data_disable)}, "disable data" },
 +
 +    { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
 +    { NULL, },
 +};
 +
 +int main(int argc, char **argv)
 +{
 +    OptionsContext o = { 0 };
 +    int64_t ti;
 +
 +    reset_options(&o, 0);
 +
 +    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
 +#if CONFIG_AVFILTER
 +    avfilter_register_all();
 +#endif
 +    av_register_all();
 +    avformat_network_init();
 +
 +    show_banner(argc, argv, options);
 +
 +    term_init();
 +
 +    /* parse options */
 +    parse_options(&o, argc, argv, options, opt_output_file);
 +
 +    if (nb_output_files <= 0 && nb_input_files == 0) {
 +        show_usage();
 +        av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
 +        exit_program(1);
 +    }
 +
 +    /* 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);
 +    }
 +
 +    ti = getutime();
 +    if (transcode(output_files, nb_output_files, input_files, nb_input_files) < 0)
 +        exit_program(1);
 +    ti = getutime() - ti;
 +    if (do_benchmark) {
 +        int maxrss = getmaxrss() / 1024;
 +        printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);
 +    }
 +
 +    exit_program(0);
 +    return 0;
 +}
Simple merge
Simple merge
@@@ -246,15 -244,7 +246,16 @@@ enum CodecID 
      CODEC_ID_DXTORY,
      CODEC_ID_V410,
      CODEC_ID_XWD,
+     CODEC_ID_CDXL,
 +    CODEC_ID_Y41P       = MKBETAG('Y','4','1','P'),
 +    CODEC_ID_ESCAPE130  = MKBETAG('E','1','3','0'),
 +    CODEC_ID_AVRP       = MKBETAG('A','V','R','P'),
 +
 +    CODEC_ID_G2M        = MKBETAG( 0 ,'G','2','M'),
 +    CODEC_ID_AYUV       = MKBETAG('A','Y','U','V'),
 +    CODEC_ID_V308       = MKBETAG('V','3','0','8'),
 +    CODEC_ID_V408       = MKBETAG('V','4','0','8'),
 +    CODEC_ID_YUV4       = MKBETAG('Y','U','V','4'),
  
      /* various PCM "codecs" */
      CODEC_ID_FIRST_AUDIO = 0x10000,     ///< A dummy id pointing at the start of audio codecs
Simple merge
Simple merge
Simple merge
@@@ -188,16 -190,20 +190,30 @@@ static int tta_get_unary(GetBitContext 
      return ret;
  }
  
 +static const int64_t tta_channel_layouts[7] = {
 +    AV_CH_LAYOUT_STEREO,
 +    AV_CH_LAYOUT_STEREO|AV_CH_LOW_FREQUENCY,
 +    AV_CH_LAYOUT_QUAD,
 +    0,
 +    AV_CH_LAYOUT_5POINT1_BACK,
 +    AV_CH_LAYOUT_5POINT1_BACK|AV_CH_BACK_CENTER,
 +    AV_CH_LAYOUT_7POINT1_WIDE
 +};
 +
+ static int tta_check_crc(TTAContext *s, const uint8_t *buf, int buf_size)
+ {
+     uint32_t crc, CRC;
+     CRC = AV_RL32(buf + buf_size);
+     crc = av_crc(s->crc_table, 0xFFFFFFFFU, buf, buf_size);
+     if (CRC != (crc ^ 0xFFFFFFFFU)) {
+         av_log(s->avctx, AV_LOG_ERROR, "CRC error\n");
+         return AVERROR_INVALIDDATA;
+     }
+     return 0;
+ }
  static av_cold int tta_decode_init(AVCodecContext * avctx)
  {
      TTAContext *s = avctx->priv_data;
@@@ -21,8 -21,8 +21,8 @@@
  #define AVCODEC_VERSION_H
  
  #define LIBAVCODEC_VERSION_MAJOR 54
--#define LIBAVCODEC_VERSION_MINOR  1
 -#define LIBAVCODEC_VERSION_MICRO  0
++#define LIBAVCODEC_VERSION_MINOR  2
 +#define LIBAVCODEC_VERSION_MICRO 100
  
  #define LIBAVCODEC_VERSION_INT  AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
                                                 LIBAVCODEC_VERSION_MINOR, \
@@@ -114,9 -103,8 +114,10 @@@ OBJS-$(CONFIG_H263_DEMUXER
  OBJS-$(CONFIG_H263_MUXER)                += rawenc.o
  OBJS-$(CONFIG_H264_DEMUXER)              += h264dec.o rawdec.o
  OBJS-$(CONFIG_H264_MUXER)                += rawenc.o
+ OBJS-$(CONFIG_HLS_DEMUXER)               += hls.o
 +OBJS-$(CONFIG_ICO_DEMUXER)               += icodec.o
  OBJS-$(CONFIG_IDCIN_DEMUXER)             += idcin.o
 +OBJS-$(CONFIG_IDF_DEMUXER)               += bintext.o
  OBJS-$(CONFIG_IFF_DEMUXER)               += iff.o
  OBJS-$(CONFIG_IMAGE2_DEMUXER)            += img2.o
  OBJS-$(CONFIG_IMAGE2_MUXER)              += img2.o
@@@ -341,15 -323,14 +343,16 @@@ OBJS-$(CONFIG_YUV4MPEGPIPE_MUXER
  OBJS-$(CONFIG_YUV4MPEGPIPE_DEMUXER)      += yuv4mpeg.o
  
  # external libraries
 +OBJS-$(CONFIG_LIBMODPLUG_DEMUXER)        += libmodplug.o
  OBJS-$(CONFIG_LIBNUT_DEMUXER)            += libnut.o
  OBJS-$(CONFIG_LIBNUT_MUXER)              += libnut.o
+ OBJS-$(CONFIG_LIBRTMP)                   += librtmp.o
  
  # protocols I/O
  OBJS+= avio.o aviobuf.o
  
- OBJS-$(CONFIG_APPLEHTTP_PROTOCOL)        += applehttpproto.o
+ OBJS-$(CONFIG_APPLEHTTP_PROTOCOL)        += hlsproto.o
 +OBJS-$(CONFIG_CACHE_PROTOCOL)            += cache.o
  OBJS-$(CONFIG_CONCAT_PROTOCOL)           += concat.o
  OBJS-$(CONFIG_CRYPTO_PROTOCOL)           += crypto.o
  OBJS-$(CONFIG_FILE_PROTOCOL)             += file.o
@@@ -72,14 -70,13 +72,15 @@@ void av_register_all(void
      REGISTER_DEMUXER  (AVS, avs);
      REGISTER_DEMUXER  (BETHSOFTVID, bethsoftvid);
      REGISTER_DEMUXER  (BFI, bfi);
 +    REGISTER_DEMUXER  (BINTEXT, bintext);
      REGISTER_DEMUXER  (BINK, bink);
 +    REGISTER_MUXDEMUX (BIT, bit);
      REGISTER_DEMUXER  (BMV, bmv);
      REGISTER_DEMUXER  (C93, c93);
 -    REGISTER_DEMUXER  (CAF, caf);
 +    REGISTER_MUXDEMUX (CAF, caf);
      REGISTER_MUXDEMUX (CAVSVIDEO, cavsvideo);
      REGISTER_DEMUXER  (CDG, cdg);
+     REGISTER_DEMUXER  (CDXL, cdxl);
      REGISTER_MUXER    (CRC, crc);
      REGISTER_MUXDEMUX (DAUD, daud);
      REGISTER_DEMUXER  (DFA, dfa);
      REGISTER_MUXDEMUX (H261, h261);
      REGISTER_MUXDEMUX (H263, h263);
      REGISTER_MUXDEMUX (H264, h264);
+     REGISTER_DEMUXER  (HLS, hls);
 +    REGISTER_DEMUXER  (ICO, ico);
      REGISTER_DEMUXER  (IDCIN, idcin);
 +    REGISTER_DEMUXER  (IDF, idf);
      REGISTER_DEMUXER  (IFF, iff);
      REGISTER_MUXDEMUX (IMAGE2, image2);
      REGISTER_MUXDEMUX (IMAGE2PIPE, image2pipe);
      REGISTER_DEMUXER  (YOP, yop);
      REGISTER_MUXDEMUX (YUV4MPEGPIPE, yuv4mpegpipe);
  
-     REGISTER_MUXDEMUX (LIBNUT, libnut);
 +    /* external libraries */
 +#if CONFIG_LIBMODPLUG
 +    REGISTER_DEMUXER  (LIBMODPLUG, libmodplug);
 +#endif
      /* protocols */
+ #if FF_API_APPLEHTTP_PROTO
      REGISTER_PROTOCOL (APPLEHTTP, applehttp);
+ #endif
 +    REGISTER_PROTOCOL (CACHE, cache);
      REGISTER_PROTOCOL (CONCAT, concat);
      REGISTER_PROTOCOL (CRYPTO, crypto);
      REGISTER_PROTOCOL (FILE, file);
index 0000000,82aa764..c27b7d3
mode 000000,100644..100644
--- /dev/null
@@@ -1,0 -1,711 +1,754 @@@
 - * This file is part of Libav.
+ /*
+  * Apple HTTP Live Streaming demuxer
+  * Copyright (c) 2010 Martin Storsjo
+  *
 - * Libav is free software; you can redistribute it and/or
++ * This file is part of FFmpeg.
+  *
 - * Libav is distributed in the hope that it will be useful,
++ * 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.
+  *
 - * License along with Libav; if not, write to the Free Software
++ * 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
 -    while (!in->eof_reached) {
++ * License along with FFmpeg; if not, write to the Free Software
+  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+  */
+ /**
+  * @file
+  * Apple HTTP Live Streaming demuxer
+  * http://tools.ietf.org/html/draft-pantos-http-live-streaming
+  */
+ #include "libavutil/avstring.h"
+ #include "libavutil/intreadwrite.h"
+ #include "libavutil/mathematics.h"
+ #include "libavutil/opt.h"
+ #include "libavutil/dict.h"
+ #include "avformat.h"
+ #include "internal.h"
+ #include <unistd.h>
+ #include "avio_internal.h"
+ #include "url.h"
+ #define INITIAL_BUFFER_SIZE 32768
+ /*
+  * An apple http stream consists of a playlist with media segment files,
+  * played sequentially. There may be several playlists with the same
+  * video content, in different bandwidth variants, that are played in
+  * parallel (preferrably only one bandwidth variant at a time). In this case,
+  * the user supplied the url to a main playlist that only lists the variant
+  * playlists.
+  *
+  * If the main playlist doesn't point at any variants, we still create
+  * one anonymous toplevel variant for this, to maintain the structure.
+  */
+ enum KeyType {
+     KEY_NONE,
+     KEY_AES_128,
+ };
+ struct segment {
+     int duration;
+     char url[MAX_URL_SIZE];
+     char key[MAX_URL_SIZE];
+     enum KeyType key_type;
+     uint8_t iv[16];
+ };
+ /*
+  * Each variant has its own demuxer. If it currently is active,
+  * it has an open AVIOContext too, and potentially an AVPacket
+  * containing the next packet from this stream.
+  */
+ struct variant {
+     int bandwidth;
+     char url[MAX_URL_SIZE];
+     AVIOContext pb;
+     uint8_t* read_buffer;
+     URLContext *input;
+     AVFormatContext *parent;
+     int index;
+     AVFormatContext *ctx;
+     AVPacket pkt;
+     int stream_offset;
+     int finished;
+     int target_duration;
+     int start_seq_no;
+     int n_segments;
+     struct segment **segments;
+     int needed, cur_needed;
+     int cur_seq_no;
+     int64_t last_load_time;
+     char key_url[MAX_URL_SIZE];
+     uint8_t key[16];
+ };
+ typedef struct HLSContext {
+     int n_variants;
+     struct variant **variants;
+     int cur_seq_no;
+     int end_of_segment;
+     int first_packet;
+     int64_t first_timestamp;
++    int64_t seek_timestamp;
++    int seek_flags;
+     AVIOInterruptCB *interrupt_callback;
+ } HLSContext;
+ static int read_chomp_line(AVIOContext *s, char *buf, int maxlen)
+ {
+     int len = ff_get_line(s, buf, maxlen);
+     while (len > 0 && isspace(buf[len - 1]))
+         buf[--len] = '\0';
+     return len;
+ }
+ static void free_segment_list(struct variant *var)
+ {
+     int i;
+     for (i = 0; i < var->n_segments; i++)
+         av_free(var->segments[i]);
+     av_freep(&var->segments);
+     var->n_segments = 0;
+ }
+ static void free_variant_list(HLSContext *c)
+ {
+     int i;
+     for (i = 0; i < c->n_variants; i++) {
+         struct variant *var = c->variants[i];
+         free_segment_list(var);
+         av_free_packet(&var->pkt);
+         av_free(var->pb.buffer);
+         if (var->input)
+             ffurl_close(var->input);
+         if (var->ctx) {
+             var->ctx->pb = NULL;
+             avformat_close_input(&var->ctx);
+         }
+         av_free(var);
+     }
+     av_freep(&c->variants);
+     c->n_variants = 0;
+ }
+ /*
+  * Used to reset a statically allocated AVPacket to a clean slate,
+  * containing no data.
+  */
+ static void reset_packet(AVPacket *pkt)
+ {
+     av_init_packet(pkt);
+     pkt->data = NULL;
+ }
+ static struct variant *new_variant(HLSContext *c, int bandwidth,
+                                    const char *url, const char *base)
+ {
+     struct variant *var = av_mallocz(sizeof(struct variant));
+     if (!var)
+         return NULL;
+     reset_packet(&var->pkt);
+     var->bandwidth = bandwidth;
+     ff_make_absolute_url(var->url, sizeof(var->url), base, url);
+     dynarray_add(&c->variants, &c->n_variants, var);
+     return var;
+ }
+ struct variant_info {
+     char bandwidth[20];
+ };
+ static void handle_variant_args(struct variant_info *info, const char *key,
+                                 int key_len, char **dest, int *dest_len)
+ {
+     if (!strncmp(key, "BANDWIDTH=", key_len)) {
+         *dest     =        info->bandwidth;
+         *dest_len = sizeof(info->bandwidth);
+     }
+ }
+ struct key_info {
+      char uri[MAX_URL_SIZE];
+      char method[10];
+      char iv[35];
+ };
+ static void handle_key_args(struct key_info *info, const char *key,
+                             int key_len, char **dest, int *dest_len)
+ {
+     if (!strncmp(key, "METHOD=", key_len)) {
+         *dest     =        info->method;
+         *dest_len = sizeof(info->method);
+     } else if (!strncmp(key, "URI=", key_len)) {
+         *dest     =        info->uri;
+         *dest_len = sizeof(info->uri);
+     } else if (!strncmp(key, "IV=", key_len)) {
+         *dest     =        info->iv;
+         *dest_len = sizeof(info->iv);
+     }
+ }
+ static int parse_playlist(HLSContext *c, const char *url,
+                           struct variant *var, AVIOContext *in)
+ {
+     int ret = 0, duration = 0, is_segment = 0, is_variant = 0, bandwidth = 0;
+     enum KeyType key_type = KEY_NONE;
+     uint8_t iv[16] = "";
+     int has_iv = 0;
+     char key[MAX_URL_SIZE] = "";
+     char line[1024];
+     const char *ptr;
+     int close_in = 0;
+     if (!in) {
+         close_in = 1;
+         if ((ret = avio_open2(&in, url, AVIO_FLAG_READ,
+                               c->interrupt_callback, NULL)) < 0)
+             return ret;
+     }
+     read_chomp_line(in, line, sizeof(line));
+     if (strcmp(line, "#EXTM3U")) {
+         ret = AVERROR_INVALIDDATA;
+         goto fail;
+     }
+     if (var) {
+         free_segment_list(var);
+         var->finished = 0;
+     }
 -        c->variants[i]->cur_needed = 0;;
++    while (!url_feof(in)) {
+         read_chomp_line(in, line, sizeof(line));
+         if (av_strstart(line, "#EXT-X-STREAM-INF:", &ptr)) {
+             struct variant_info info = {{0}};
+             is_variant = 1;
+             ff_parse_key_value(ptr, (ff_parse_key_val_cb) handle_variant_args,
+                                &info);
+             bandwidth = atoi(info.bandwidth);
+         } else if (av_strstart(line, "#EXT-X-KEY:", &ptr)) {
+             struct key_info info = {{0}};
+             ff_parse_key_value(ptr, (ff_parse_key_val_cb) handle_key_args,
+                                &info);
+             key_type = KEY_NONE;
+             has_iv = 0;
+             if (!strcmp(info.method, "AES-128"))
+                 key_type = KEY_AES_128;
+             if (!strncmp(info.iv, "0x", 2) || !strncmp(info.iv, "0X", 2)) {
+                 ff_hex_to_data(iv, info.iv + 2);
+                 has_iv = 1;
+             }
+             av_strlcpy(key, info.uri, sizeof(key));
+         } else if (av_strstart(line, "#EXT-X-TARGETDURATION:", &ptr)) {
+             if (!var) {
+                 var = new_variant(c, 0, url, NULL);
+                 if (!var) {
+                     ret = AVERROR(ENOMEM);
+                     goto fail;
+                 }
+             }
+             var->target_duration = atoi(ptr);
+         } else if (av_strstart(line, "#EXT-X-MEDIA-SEQUENCE:", &ptr)) {
+             if (!var) {
+                 var = new_variant(c, 0, url, NULL);
+                 if (!var) {
+                     ret = AVERROR(ENOMEM);
+                     goto fail;
+                 }
+             }
+             var->start_seq_no = atoi(ptr);
+         } else if (av_strstart(line, "#EXT-X-ENDLIST", &ptr)) {
+             if (var)
+                 var->finished = 1;
+         } else if (av_strstart(line, "#EXTINF:", &ptr)) {
+             is_segment = 1;
+             duration   = atoi(ptr);
+         } else if (av_strstart(line, "#", NULL)) {
+             continue;
+         } else if (line[0]) {
+             if (is_variant) {
+                 if (!new_variant(c, bandwidth, line, url)) {
+                     ret = AVERROR(ENOMEM);
+                     goto fail;
+                 }
+                 is_variant = 0;
+                 bandwidth  = 0;
+             }
+             if (is_segment) {
+                 struct segment *seg;
+                 if (!var) {
+                     var = new_variant(c, 0, url, NULL);
+                     if (!var) {
+                         ret = AVERROR(ENOMEM);
+                         goto fail;
+                     }
+                 }
+                 seg = av_malloc(sizeof(struct segment));
+                 if (!seg) {
+                     ret = AVERROR(ENOMEM);
+                     goto fail;
+                 }
+                 seg->duration = duration;
+                 seg->key_type = key_type;
+                 if (has_iv) {
+                     memcpy(seg->iv, iv, sizeof(iv));
+                 } else {
+                     int seq = var->start_seq_no + var->n_segments;
+                     memset(seg->iv, 0, sizeof(seg->iv));
+                     AV_WB32(seg->iv + 12, seq);
+                 }
+                 ff_make_absolute_url(seg->key, sizeof(seg->key), url, key);
+                 ff_make_absolute_url(seg->url, sizeof(seg->url), url, line);
+                 dynarray_add(&var->segments, &var->n_segments, seg);
+                 is_segment = 0;
+             }
+         }
+     }
+     if (var)
+         var->last_load_time = av_gettime();
+ fail:
+     if (close_in)
+         avio_close(in);
+     return ret;
+ }
+ static int open_input(struct variant *var)
+ {
+     struct segment *seg = var->segments[var->cur_seq_no - var->start_seq_no];
+     if (seg->key_type == KEY_NONE) {
+         return ffurl_open(&var->input, seg->url, AVIO_FLAG_READ,
+                           &var->parent->interrupt_callback, NULL);
+     } else if (seg->key_type == KEY_AES_128) {
+         char iv[33], key[33], url[MAX_URL_SIZE];
+         int ret;
+         if (strcmp(seg->key, var->key_url)) {
+             URLContext *uc;
+             if (ffurl_open(&uc, seg->key, AVIO_FLAG_READ,
+                            &var->parent->interrupt_callback, NULL) == 0) {
+                 if (ffurl_read_complete(uc, var->key, sizeof(var->key))
+                     != sizeof(var->key)) {
+                     av_log(NULL, AV_LOG_ERROR, "Unable to read key file %s\n",
+                            seg->key);
+                 }
+                 ffurl_close(uc);
+             } else {
+                 av_log(NULL, AV_LOG_ERROR, "Unable to open key file %s\n",
+                        seg->key);
+             }
+             av_strlcpy(var->key_url, seg->key, sizeof(var->key_url));
+         }
+         ff_data_to_hex(iv, seg->iv, sizeof(seg->iv), 0);
+         ff_data_to_hex(key, var->key, sizeof(var->key), 0);
+         iv[32] = key[32] = '\0';
+         if (strstr(seg->url, "://"))
+             snprintf(url, sizeof(url), "crypto+%s", seg->url);
+         else
+             snprintf(url, sizeof(url), "crypto:%s", seg->url);
+         if ((ret = ffurl_alloc(&var->input, url, AVIO_FLAG_READ,
+                                &var->parent->interrupt_callback)) < 0)
+             return ret;
+         av_opt_set(var->input->priv_data, "key", key, 0);
+         av_opt_set(var->input->priv_data, "iv", iv, 0);
+         if ((ret = ffurl_connect(var->input, NULL)) < 0) {
+             ffurl_close(var->input);
+             var->input = NULL;
+             return ret;
+         }
+         return 0;
+     }
+     return AVERROR(ENOSYS);
+ }
+ static int read_data(void *opaque, uint8_t *buf, int buf_size)
+ {
+     struct variant *v = opaque;
+     HLSContext *c = v->parent->priv_data;
+     int ret, i;
+ restart:
+     if (!v->input) {
+         /* If this is a live stream and the reload interval has elapsed since
+          * the last playlist reload, reload the variant playlists now. */
+         int64_t reload_interval = v->n_segments > 0 ?
+                                   v->segments[v->n_segments - 1]->duration :
+                                   v->target_duration;
+         reload_interval *= 1000000;
+ reload:
+         if (!v->finished &&
+             av_gettime() - v->last_load_time >= reload_interval) {
+             if ((ret = parse_playlist(c, v->url, v, NULL)) < 0)
+                 return ret;
+             /* If we need to reload the playlist again below (if
+              * there's still no more segments), switch to a reload
+              * interval of half the target duration. */
+             reload_interval = v->target_duration * 500000;
+         }
+         if (v->cur_seq_no < v->start_seq_no) {
+             av_log(NULL, AV_LOG_WARNING,
+                    "skipping %d segments ahead, expired from playlists\n",
+                    v->start_seq_no - v->cur_seq_no);
+             v->cur_seq_no = v->start_seq_no;
+         }
+         if (v->cur_seq_no >= v->start_seq_no + v->n_segments) {
+             if (v->finished)
+                 return AVERROR_EOF;
+             while (av_gettime() - v->last_load_time < reload_interval) {
+                 if (ff_check_interrupt(c->interrupt_callback))
+                     return AVERROR_EXIT;
+                 usleep(100*1000);
+             }
+             /* Enough time has elapsed since the last reload */
+             goto reload;
+         }
+         ret = open_input(v);
+         if (ret < 0)
+             return ret;
+     }
+     ret = ffurl_read(v->input, buf, buf_size);
+     if (ret > 0)
+         return ret;
+     if (ret < 0 && ret != AVERROR_EOF)
+         return ret;
+     ffurl_close(v->input);
+     v->input = NULL;
+     v->cur_seq_no++;
+     c->end_of_segment = 1;
+     c->cur_seq_no = v->cur_seq_no;
+     if (v->ctx && v->ctx->nb_streams) {
+         v->needed = 0;
+         for (i = v->stream_offset; i < v->stream_offset + v->ctx->nb_streams;
+              i++) {
+             if (v->parent->streams[i]->discard < AVDISCARD_ALL)
+                 v->needed = 1;
+         }
+     }
+     if (!v->needed) {
+         av_log(v->parent, AV_LOG_INFO, "No longer receiving variant %d\n",
+                v->index);
+         return AVERROR_EOF;
+     }
+     goto restart;
+ }
+ static int hls_read_header(AVFormatContext *s)
+ {
+     HLSContext *c = s->priv_data;
+     int ret = 0, i, j, stream_offset = 0;
+     c->interrupt_callback = &s->interrupt_callback;
+     if ((ret = parse_playlist(c, s->filename, NULL, s->pb)) < 0)
+         goto fail;
+     if (c->n_variants == 0) {
+         av_log(NULL, AV_LOG_WARNING, "Empty playlist\n");
+         ret = AVERROR_EOF;
+         goto fail;
+     }
+     /* If the playlist only contained variants, parse each individual
+      * variant playlist. */
+     if (c->n_variants > 1 || c->variants[0]->n_segments == 0) {
+         for (i = 0; i < c->n_variants; i++) {
+             struct variant *v = c->variants[i];
+             if ((ret = parse_playlist(c, v->url, v, NULL)) < 0)
+                 goto fail;
+         }
+     }
+     if (c->variants[0]->n_segments == 0) {
+         av_log(NULL, AV_LOG_WARNING, "Empty playlist\n");
+         ret = AVERROR_EOF;
+         goto fail;
+     }
+     /* If this isn't a live stream, calculate the total duration of the
+      * stream. */
+     if (c->variants[0]->finished) {
+         int64_t duration = 0;
+         for (i = 0; i < c->variants[0]->n_segments; i++)
+             duration += c->variants[0]->segments[i]->duration;
+         s->duration = duration * AV_TIME_BASE;
+     }
+     /* Open the demuxer for each variant */
+     for (i = 0; i < c->n_variants; i++) {
+         struct variant *v = c->variants[i];
+         AVInputFormat *in_fmt = NULL;
+         char bitrate_str[20];
+         if (v->n_segments == 0)
+             continue;
+         if (!(v->ctx = avformat_alloc_context())) {
+             ret = AVERROR(ENOMEM);
+             goto fail;
+         }
+         v->index  = i;
+         v->needed = 1;
+         v->parent = s;
+         /* If this is a live stream with more than 3 segments, start at the
+          * third last segment. */
+         v->cur_seq_no = v->start_seq_no;
+         if (!v->finished && v->n_segments > 3)
+             v->cur_seq_no = v->start_seq_no + v->n_segments - 3;
+         v->read_buffer = av_malloc(INITIAL_BUFFER_SIZE);
+         ffio_init_context(&v->pb, v->read_buffer, INITIAL_BUFFER_SIZE, 0, v,
+                           read_data, NULL, NULL);
+         v->pb.seekable = 0;
+         ret = av_probe_input_buffer(&v->pb, &in_fmt, v->segments[0]->url,
+                                     NULL, 0, 0);
+         if (ret < 0) {
+             /* Free the ctx - it isn't initialized properly at this point,
+              * so avformat_close_input shouldn't be called. If
+              * avformat_open_input fails below, it frees and zeros the
+              * context, so it doesn't need any special treatment like this. */
+             avformat_free_context(v->ctx);
+             v->ctx = NULL;
+             goto fail;
+         }
+         v->ctx->pb       = &v->pb;
+         ret = avformat_open_input(&v->ctx, v->segments[0]->url, in_fmt, NULL);
+         if (ret < 0)
+             goto fail;
+         v->stream_offset = stream_offset;
+         snprintf(bitrate_str, sizeof(bitrate_str), "%d", v->bandwidth);
+         /* Create new AVStreams for each stream in this variant */
+         for (j = 0; j < v->ctx->nb_streams; j++) {
+             AVStream *st = avformat_new_stream(s, NULL);
+             if (!st) {
+                 ret = AVERROR(ENOMEM);
+                 goto fail;
+             }
+             st->id = i;
+             avcodec_copy_context(st->codec, v->ctx->streams[j]->codec);
+             if (v->bandwidth)
+                 av_dict_set(&st->metadata, "variant_bitrate", bitrate_str,
+                                  0);
+         }
+         stream_offset += v->ctx->nb_streams;
+     }
+     c->first_packet = 1;
+     c->first_timestamp = AV_NOPTS_VALUE;
++    c->seek_timestamp = AV_NOPTS_VALUE;
+     return 0;
+ fail:
+     free_variant_list(c);
+     return ret;
+ }
+ static int recheck_discard_flags(AVFormatContext *s, int first)
+ {
+     HLSContext *c = s->priv_data;
+     int i, changed = 0;
+     /* Check if any new streams are needed */
+     for (i = 0; i < c->n_variants; i++)
 -            ret = av_read_frame(var->ctx, &var->pkt);
 -            if (ret < 0) {
 -                if (!var->pb.eof_reached)
 -                    return ret;
 -                reset_packet(&var->pkt);
 -            } else {
 -                if (c->first_timestamp == AV_NOPTS_VALUE)
 -                    c->first_timestamp = var->pkt.dts;
++        c->variants[i]->cur_needed = 0;
+     for (i = 0; i < s->nb_streams; i++) {
+         AVStream *st = s->streams[i];
+         struct variant *var = c->variants[s->streams[i]->id];
+         if (st->discard < AVDISCARD_ALL)
+             var->cur_needed = 1;
+     }
+     for (i = 0; i < c->n_variants; i++) {
+         struct variant *v = c->variants[i];
+         if (v->cur_needed && !v->needed) {
+             v->needed = 1;
+             changed = 1;
+             v->cur_seq_no = c->cur_seq_no;
+             v->pb.eof_reached = 0;
+             av_log(s, AV_LOG_INFO, "Now receiving variant %d\n", i);
+         } else if (first && !v->cur_needed && v->needed) {
+             if (v->input)
+                 ffurl_close(v->input);
+             v->input = NULL;
+             v->needed = 0;
+             changed = 1;
+             av_log(s, AV_LOG_INFO, "No longer receiving variant %d\n", i);
+         }
+     }
+     return changed;
+ }
+ static int hls_read_packet(AVFormatContext *s, AVPacket *pkt)
+ {
+     HLSContext *c = s->priv_data;
+     int ret, i, minvariant = -1;
+     if (c->first_packet) {
+         recheck_discard_flags(s, 1);
+         c->first_packet = 0;
+     }
+ start:
+     c->end_of_segment = 0;
+     for (i = 0; i < c->n_variants; i++) {
+         struct variant *var = c->variants[i];
+         /* Make sure we've got one buffered packet from each open variant
+          * stream */
+         if (var->needed && !var->pkt.data) {
 -                      av_rescale_rnd(c->first_timestamp, 1,
 -                          stream_index >= 0 ? s->streams[stream_index]->time_base.den : AV_TIME_BASE,
 -                          flags & AVSEEK_FLAG_BACKWARD ? AV_ROUND_DOWN : AV_ROUND_UP);
 -        if (var->input) {
++            while (1) {
++                int64_t ts_diff;
++                ret = av_read_frame(var->ctx, &var->pkt);
++                if (ret < 0) {
++                    if (!url_feof(&var->pb)) {
++                        return ret;
++                    } else {
++                        if ((var->cur_seq_no - var->start_seq_no) == (var->n_segments)) {
++                            return AVERROR_EOF;
++                        }
++                    }
++                    reset_packet(&var->pkt);
++                } else {
++                    if (c->first_timestamp == AV_NOPTS_VALUE)
++                        c->first_timestamp = var->pkt.dts;
++                }
++
++                if (c->seek_timestamp == AV_NOPTS_VALUE)
++                    break;
++
++                if (var->pkt.dts == AV_NOPTS_VALUE) {
++                    c->seek_timestamp = AV_NOPTS_VALUE;
++                    break;
++                }
++
++                ts_diff = var->pkt.dts - c->seek_timestamp;
++                if (ts_diff >= 0) {
++                    if (c->seek_flags & AVSEEK_FLAG_ANY) {
++                        c->seek_timestamp = AV_NOPTS_VALUE;
++                        break;
++                    }
++
++                    /* Seek to keyframe */
++                    if (var->pkt.flags & AV_PKT_FLAG_KEY) {
++                        c->seek_timestamp = AV_NOPTS_VALUE;
++                        break;
++                    }
++                }
+             }
+         }
+         /* Check if this stream has the packet with the lowest dts */
+         if (var->pkt.data) {
+             if (minvariant < 0 ||
+                 var->pkt.dts < c->variants[minvariant]->pkt.dts)
+                 minvariant = i;
+         }
+     }
+     if (c->end_of_segment) {
+         if (recheck_discard_flags(s, 0))
+             goto start;
+     }
+     /* If we got a packet, return it */
+     if (minvariant >= 0) {
+         *pkt = c->variants[minvariant]->pkt;
+         pkt->stream_index += c->variants[minvariant]->stream_offset;
+         reset_packet(&c->variants[minvariant]->pkt);
+         return 0;
+     }
+     return AVERROR_EOF;
+ }
+ static int hls_close(AVFormatContext *s)
+ {
+     HLSContext *c = s->priv_data;
+     free_variant_list(c);
+     return 0;
+ }
+ static int hls_read_seek(AVFormatContext *s, int stream_index,
+                                int64_t timestamp, int flags)
+ {
+     HLSContext *c = s->priv_data;
+     int i, j, ret;
+     if ((flags & AVSEEK_FLAG_BYTE) || !c->variants[0]->finished)
+         return AVERROR(ENOSYS);
++    c->seek_timestamp = timestamp;
++    c->seek_flags = flags;
+     timestamp = av_rescale_rnd(timestamp, 1, stream_index >= 0 ?
+                                s->streams[stream_index]->time_base.den :
+                                AV_TIME_BASE, flags & AVSEEK_FLAG_BACKWARD ?
+                                AV_ROUND_DOWN : AV_ROUND_UP);
++    if (s->duration < c->seek_timestamp) {
++        c->seek_timestamp = AV_NOPTS_VALUE;
++        return AVERROR(EIO);
++    }
++
+     ret = AVERROR(EIO);
+     for (i = 0; i < c->n_variants; i++) {
+         /* Reset reading */
+         struct variant *var = c->variants[i];
+         int64_t pos = c->first_timestamp == AV_NOPTS_VALUE ? 0 :
++                      av_rescale_rnd(c->first_timestamp, 1, stream_index >= 0 ?
++                               s->streams[stream_index]->time_base.den :
++                               AV_TIME_BASE, flags & AVSEEK_FLAG_BACKWARD ?
++                               AV_ROUND_DOWN : AV_ROUND_UP);
++         if (var->input) {
+             ffurl_close(var->input);
+             var->input = NULL;
+         }
+         av_free_packet(&var->pkt);
+         reset_packet(&var->pkt);
+         var->pb.eof_reached = 0;
+         /* Locate the segment that contains the target timestamp */
+         for (j = 0; j < var->n_segments; j++) {
+             if (timestamp >= pos &&
+                 timestamp < pos + var->segments[j]->duration) {
+                 var->cur_seq_no = var->start_seq_no + j;
+                 ret = 0;
+                 break;
+             }
+             pos += var->segments[j]->duration;
+         }
++        if (ret != 0)
++            c->seek_timestamp = AV_NOPTS_VALUE;
+     }
+     return ret;
+ }
+ static int hls_probe(AVProbeData *p)
+ {
+     /* Require #EXTM3U at the start, and either one of the ones below
+      * somewhere for a proper match. */
+     if (strncmp(p->buf, "#EXTM3U", 7))
+         return 0;
+     if (strstr(p->buf, "#EXT-X-STREAM-INF:")     ||
+         strstr(p->buf, "#EXT-X-TARGETDURATION:") ||
+         strstr(p->buf, "#EXT-X-MEDIA-SEQUENCE:"))
+         return AVPROBE_SCORE_MAX;
+     return 0;
+ }
+ AVInputFormat ff_hls_demuxer = {
+     .name           = "hls,applehttp",
+     .long_name      = NULL_IF_CONFIG_SMALL("Apple HTTP Live Streaming format"),
+     .priv_data_size = sizeof(HLSContext),
+     .read_probe     = hls_probe,
+     .read_header    = hls_read_header,
+     .read_packet    = hls_read_packet,
+     .read_close     = hls_close,
+     .read_seek      = hls_read_seek,
+ };
index 0000000,044b7ff..8c25689
mode 000000,100644..100644
--- /dev/null
@@@ -1,0 -1,347 +1,347 @@@
 - * This file is part of Libav.
+ /*
+  * Apple HTTP Live Streaming Protocol Handler
+  * Copyright (c) 2010 Martin Storsjo
+  *
 - * Libav is free software; you can redistribute it and/or
++ * This file is part of FFmpeg.
+  *
 - * Libav is distributed in the hope that it will be useful,
++ * 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.
+  *
 - * License along with Libav; if not, write to the Free Software
++ * 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
 -    while (!in->eof_reached) {
++ * License along with FFmpeg; if not, write to the Free Software
+  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+  */
+ /**
+  * @file
+  * Apple HTTP Live Streaming Protocol Handler
+  * http://tools.ietf.org/html/draft-pantos-http-live-streaming
+  */
+ #include "libavutil/avstring.h"
+ #include "avformat.h"
+ #include "internal.h"
+ #include "url.h"
+ #include "version.h"
+ #include <unistd.h>
+ /*
+  * An apple http stream consists of a playlist with media segment files,
+  * played sequentially. There may be several playlists with the same
+  * video content, in different bandwidth variants, that are played in
+  * parallel (preferrably only one bandwidth variant at a time). In this case,
+  * the user supplied the url to a main playlist that only lists the variant
+  * playlists.
+  *
+  * If the main playlist doesn't point at any variants, we still create
+  * one anonymous toplevel variant for this, to maintain the structure.
+  */
+ struct segment {
+     int duration;
+     char url[MAX_URL_SIZE];
+ };
+ struct variant {
+     int bandwidth;
+     char url[MAX_URL_SIZE];
+ };
+ typedef struct HLSContext {
+     char playlisturl[MAX_URL_SIZE];
+     int target_duration;
+     int start_seq_no;
+     int finished;
+     int n_segments;
+     struct segment **segments;
+     int n_variants;
+     struct variant **variants;
+     int cur_seq_no;
+     URLContext *seg_hd;
+     int64_t last_load_time;
+ } HLSContext;
+ static int read_chomp_line(AVIOContext *s, char *buf, int maxlen)
+ {
+     int len = ff_get_line(s, buf, maxlen);
+     while (len > 0 && isspace(buf[len - 1]))
+         buf[--len] = '\0';
+     return len;
+ }
+ static void free_segment_list(HLSContext *s)
+ {
+     int i;
+     for (i = 0; i < s->n_segments; i++)
+         av_free(s->segments[i]);
+     av_freep(&s->segments);
+     s->n_segments = 0;
+ }
+ static void free_variant_list(HLSContext *s)
+ {
+     int i;
+     for (i = 0; i < s->n_variants; i++)
+         av_free(s->variants[i]);
+     av_freep(&s->variants);
+     s->n_variants = 0;
+ }
+ struct variant_info {
+     char bandwidth[20];
+ };
+ static void handle_variant_args(struct variant_info *info, const char *key,
+                                 int key_len, char **dest, int *dest_len)
+ {
+     if (!strncmp(key, "BANDWIDTH=", key_len)) {
+         *dest     =        info->bandwidth;
+         *dest_len = sizeof(info->bandwidth);
+     }
+ }
+ static int parse_playlist(URLContext *h, const char *url)
+ {
+     HLSContext *s = h->priv_data;
+     AVIOContext *in;
+     int ret = 0, duration = 0, is_segment = 0, is_variant = 0, bandwidth = 0;
+     char line[1024];
+     const char *ptr;
+     if ((ret = avio_open2(&in, url, AVIO_FLAG_READ,
+                           &h->interrupt_callback, NULL)) < 0)
+         return ret;
+     read_chomp_line(in, line, sizeof(line));
+     if (strcmp(line, "#EXTM3U"))
+         return AVERROR_INVALIDDATA;
+     free_segment_list(s);
+     s->finished = 0;
++    while (!url_feof(in)) {
+         read_chomp_line(in, line, sizeof(line));
+         if (av_strstart(line, "#EXT-X-STREAM-INF:", &ptr)) {
+             struct variant_info info = {{0}};
+             is_variant = 1;
+             ff_parse_key_value(ptr, (ff_parse_key_val_cb) handle_variant_args,
+                                &info);
+             bandwidth = atoi(info.bandwidth);
+         } else if (av_strstart(line, "#EXT-X-TARGETDURATION:", &ptr)) {
+             s->target_duration = atoi(ptr);
+         } else if (av_strstart(line, "#EXT-X-MEDIA-SEQUENCE:", &ptr)) {
+             s->start_seq_no = atoi(ptr);
+         } else if (av_strstart(line, "#EXT-X-ENDLIST", &ptr)) {
+             s->finished = 1;
+         } else if (av_strstart(line, "#EXTINF:", &ptr)) {
+             is_segment = 1;
+             duration = atoi(ptr);
+         } else if (av_strstart(line, "#", NULL)) {
+             continue;
+         } else if (line[0]) {
+             if (is_segment) {
+                 struct segment *seg = av_malloc(sizeof(struct segment));
+                 if (!seg) {
+                     ret = AVERROR(ENOMEM);
+                     goto fail;
+                 }
+                 seg->duration = duration;
+                 ff_make_absolute_url(seg->url, sizeof(seg->url), url, line);
+                 dynarray_add(&s->segments, &s->n_segments, seg);
+                 is_segment = 0;
+             } else if (is_variant) {
+                 struct variant *var = av_malloc(sizeof(struct variant));
+                 if (!var) {
+                     ret = AVERROR(ENOMEM);
+                     goto fail;
+                 }
+                 var->bandwidth = bandwidth;
+                 ff_make_absolute_url(var->url, sizeof(var->url), url, line);
+                 dynarray_add(&s->variants, &s->n_variants, var);
+                 is_variant = 0;
+             }
+         }
+     }
+     s->last_load_time = av_gettime();
+ fail:
+     avio_close(in);
+     return ret;
+ }
+ static int hls_close(URLContext *h)
+ {
+     HLSContext *s = h->priv_data;
+     free_segment_list(s);
+     free_variant_list(s);
+     ffurl_close(s->seg_hd);
+     return 0;
+ }
+ static int hls_open(URLContext *h, const char *uri, int flags)
+ {
+     HLSContext *s = h->priv_data;
+     int ret, i;
+     const char *nested_url;
+     if (flags & AVIO_FLAG_WRITE)
+         return AVERROR(ENOSYS);
+     h->is_streamed = 1;
+     if (av_strstart(uri, "hls+", &nested_url)) {
+         av_strlcpy(s->playlisturl, nested_url, sizeof(s->playlisturl));
+     } else if (av_strstart(uri, "hls://", &nested_url)) {
+         av_log(h, AV_LOG_ERROR,
+                "No nested protocol specified. Specify e.g. hls+http://%s\n",
+                nested_url);
+         ret = AVERROR(EINVAL);
+         goto fail;
+ #if FF_API_APPLEHTTP_PROTO
+     } else if (av_strstart(uri, "applehttp+", &nested_url)) {
+         av_strlcpy(s->playlisturl, nested_url, sizeof(s->playlisturl));
+         av_log(h, AV_LOG_WARNING,
+                "The applehttp protocol is deprecated, use hls+%s as url "
+                "instead.\n", nested_url);
+     } else if (av_strstart(uri, "applehttp://", &nested_url)) {
+         av_strlcpy(s->playlisturl, "http://", sizeof(s->playlisturl));
+         av_strlcat(s->playlisturl, nested_url, sizeof(s->playlisturl));
+         av_log(h, AV_LOG_WARNING,
+                "The applehttp protocol is deprecated, use hls+http://%s as url "
+                "instead.\n", nested_url);
+ #endif
+     } else {
+         av_log(h, AV_LOG_ERROR, "Unsupported url %s\n", uri);
+         ret = AVERROR(EINVAL);
+         goto fail;
+     }
+     av_log(h, AV_LOG_WARNING,
+            "Using the hls protocol is discouraged, please try using the "
+            "hls demuxer instead. The hls demuxer should be more complete "
+            "and work as well as the protocol implementation. (If not, "
+            "please report it.) To use the demuxer, simply use %s as url.\n",
+            s->playlisturl);
+     if ((ret = parse_playlist(h, s->playlisturl)) < 0)
+         goto fail;
+     if (s->n_segments == 0 && s->n_variants > 0) {
+         int max_bandwidth = 0, maxvar = -1;
+         for (i = 0; i < s->n_variants; i++) {
+             if (s->variants[i]->bandwidth > max_bandwidth || i == 0) {
+                 max_bandwidth = s->variants[i]->bandwidth;
+                 maxvar = i;
+             }
+         }
+         av_strlcpy(s->playlisturl, s->variants[maxvar]->url,
+                    sizeof(s->playlisturl));
+         if ((ret = parse_playlist(h, s->playlisturl)) < 0)
+             goto fail;
+     }
+     if (s->n_segments == 0) {
+         av_log(h, AV_LOG_WARNING, "Empty playlist\n");
+         ret = AVERROR(EIO);
+         goto fail;
+     }
+     s->cur_seq_no = s->start_seq_no;
+     if (!s->finished && s->n_segments >= 3)
+         s->cur_seq_no = s->start_seq_no + s->n_segments - 3;
+     return 0;
+ fail:
+     hls_close(h);
+     return ret;
+ }
+ static int hls_read(URLContext *h, uint8_t *buf, int size)
+ {
+     HLSContext *s = h->priv_data;
+     const char *url;
+     int ret;
+     int64_t reload_interval;
+ start:
+     if (s->seg_hd) {
+         ret = ffurl_read(s->seg_hd, buf, size);
+         if (ret > 0)
+             return ret;
+     }
+     if (s->seg_hd) {
+         ffurl_close(s->seg_hd);
+         s->seg_hd = NULL;
+         s->cur_seq_no++;
+     }
+     reload_interval = s->n_segments > 0 ?
+                       s->segments[s->n_segments - 1]->duration :
+                       s->target_duration;
+     reload_interval *= 1000000;
+ retry:
+     if (!s->finished) {
+         int64_t now = av_gettime();
+         if (now - s->last_load_time >= reload_interval) {
+             if ((ret = parse_playlist(h, s->playlisturl)) < 0)
+                 return ret;
+             /* If we need to reload the playlist again below (if
+              * there's still no more segments), switch to a reload
+              * interval of half the target duration. */
+             reload_interval = s->target_duration * 500000;
+         }
+     }
+     if (s->cur_seq_no < s->start_seq_no) {
+         av_log(h, AV_LOG_WARNING,
+                "skipping %d segments ahead, expired from playlist\n",
+                s->start_seq_no - s->cur_seq_no);
+         s->cur_seq_no = s->start_seq_no;
+     }
+     if (s->cur_seq_no - s->start_seq_no >= s->n_segments) {
+         if (s->finished)
+             return AVERROR_EOF;
+         while (av_gettime() - s->last_load_time < reload_interval) {
+             if (ff_check_interrupt(&h->interrupt_callback))
+                 return AVERROR_EXIT;
+             usleep(100*1000);
+         }
+         goto retry;
+     }
+     url = s->segments[s->cur_seq_no - s->start_seq_no]->url,
+     av_log(h, AV_LOG_DEBUG, "opening %s\n", url);
+     ret = ffurl_open(&s->seg_hd, url, AVIO_FLAG_READ,
+                      &h->interrupt_callback, NULL);
+     if (ret < 0) {
+         if (ff_check_interrupt(&h->interrupt_callback))
+             return AVERROR_EXIT;
+         av_log(h, AV_LOG_WARNING, "Unable to open %s\n", url);
+         s->cur_seq_no++;
+         goto retry;
+     }
+     goto start;
+ }
+ #if FF_API_APPLEHTTP_PROTO
+ URLProtocol ff_applehttp_protocol = {
+     .name           = "applehttp",
+     .url_open       = hls_open,
+     .url_read       = hls_read,
+     .url_close      = hls_close,
+     .flags          = URL_PROTOCOL_FLAG_NESTED_SCHEME,
+     .priv_data_size = sizeof(HLSContext),
+ };
+ #endif
+ URLProtocol ff_hls_protocol = {
+     .name           = "hls",
+     .url_open       = hls_open,
+     .url_read       = hls_read,
+     .url_close      = hls_close,
+     .flags          = URL_PROTOCOL_FLAG_NESTED_SCHEME,
+     .priv_data_size = sizeof(HLSContext),
+ };
Simple merge
Simple merge
Simple merge
Simple merge
Simple merge
Simple merge
@@@ -30,8 -30,8 +30,8 @@@
  #include "libavutil/avutil.h"
  
  #define LIBAVFORMAT_VERSION_MAJOR 54
- #define LIBAVFORMAT_VERSION_MINOR  0
+ #define LIBAVFORMAT_VERSION_MINOR  1
 -#define LIBAVFORMAT_VERSION_MICRO  0
 +#define LIBAVFORMAT_VERSION_MICRO 100
  
  #define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \
                                                 LIBAVFORMAT_VERSION_MINOR, \