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• ffmpeg says : "option framerate not found"

  29 novembre 2018, par Jason

  Good afternoon.

  I’ve been trying to use ffmpeg to split a .mpeg into a sequence of .jpeg images. Please note that this is the inverse problem of the one specified here, but the problem I’m facing is not the same as the problem the author of that thread is facing.

  Specifically, I have tried all the following mpeg codecs available in my ffmpeg installation :

  DEV D  ffv1            FFmpeg video codec #1
  
  DEVSD  ffvhuff         Huffyuv FFmpeg variant
  
  DEVSDT mpeg1video      MPEG-1 video
  
  D V DT mpeg1video_vdpau MPEG-1 video (VDPAU acceleration)
  
  D V D  mpeg2_crystalhd MPEG-2 Video (CrystalHD acceleration)
  
  DEVSDT mpeg2video      MPEG-2 video
  
  DEVSDT mpeg4           MPEG-4 part 2
  
  D V D  mpeg4_crystalhd MPEG-4 Part 2 (CrystalHD acceleration)
  
  D V DT mpeg4_vdpau     MPEG-4 part 2 (VDPAU)
  
  D VSDT mpegvideo       MPEG-1 video
  
  D V DT mpegvideo_vdpau MPEG-1/2 video (VDPAU acceleration)
  
  D VSDT mpegvideo_xvmc  MPEG-1/2 video XvMC (X-Video Motion Compensation)
  
  DEVSD  msmpeg4         MPEG-4 part 2 Microsoft variant version 3
  
  D V D  msmpeg4_crystalhd MPEG-4 Part 2 Microsoft variant version 3 (CrystalHD acceleration)
  
  D VSD  msmpeg4v1       MPEG-4 part 2 Microsoft variant version 1
  
  DEVSD  msmpeg4v2       MPEG-4 part 2 Microsoft variant version 2

  I’ve tried supplying ffmpeg with all different codecs to try to split an input .mpeg video file with 2548 frames into 2548 .jpegs, by using the -vcodec option :

  ffmpeg -r 2548 -i frames.mpeg frames_%06d.jpg -vcodec $codec

  where $codec is any codec among the ones listed above, e.g. ffv1, mpeg4, etc. However, all my efforts result in the following error :

  [NULL @ 0x1948f20] Value 4707126720094797824.000000 for parameter 'probesize' out of range
  
  [NULL @ 0x1948f20] Value 4707126720094797824.000000 for parameter 'analyzeduration' out of range
  
  [NULL @ 0x1948f20] Value 4697254411347427328.000000 for parameter 'indexmem' out of range
  
  [NULL @ 0x1948f20] Value 4703785510416416768.000000 for parameter 'rtbufsize' out of range
  
  [NULL @ 0x1948f20] Value -4616189618054758400.000000 for parameter 'fpsprobesize' out of range
  
  [NULL @ 0x1948f20] Value 4607182418800017408.000000 for parameter 'f_err_detect' out of     range
  
  [NULL @ 0x1948f20] Value 4607182418800017408.000000 for parameter 'err_detect' out of range
  
  Option framerate not found.  

  Which is weird, because I’ve actually specified the frame rate parameter through the -r switch. I googled a bit and it appears that this error was mentioned approximately a year and a half ago on the ffmpeg bug tracker but that information makes little sense to me because it’s relevant to the devs. Curiously, if I interchange the position of the parameters and put -r after -i or even after -vcodec, the error message changes to :

  [NULL @ 0x24abf20] Value 4707126720094797824.000000 for parameter 'probesize' out of range
  
  [NULL @ 0x24abf20] Value 4707126720094797824.000000 for parameter 'analyzeduration' out of range
  
  [NULL @ 0x24abf20] Value 4697254411347427328.000000 for parameter 'indexmem' out of range
  
  [NULL @ 0x24abf20] Value 4703785510416416768.000000 for parameter 'rtbufsize' out of range
  
  [NULL @ 0x24abf20] Value -4616189618054758400.000000 for parameter 'fpsprobesize' out of  range
  
  [NULL @ 0x24abf20] Value 4607182418800017408.000000 for parameter 'f_err_detect' out of  range
  
  [NULL @ 0x24abf20] Value 4607182418800017408.000000 for parameter 'err_detect' out of range
  
  [NULL @ 0x24b23c0] Value 4686111960511545344.000000 for parameter 'b' out of range
  
  [NULL @ 0x24b23c0] Value 4683532506232782848.000000 for parameter 'ab' out of range
  
  [NULL @ 0x24b23c0] Value 4705844345939427328.000000 for parameter 'bt' out of range
  
  [NULL @ 0x24b23c0] Value 4617315517961601024.000000 for parameter 'me_method' out of range
  
  [NULL @ 0x24b23c0] Value 4622945017495814144.000000 for parameter 'g' out of range
  
  [NULL @ 0x24b23c0] Value 4611686018427387904.000000 for parameter 'qmin' out of range
  
  [NULL @ 0x24b23c0] Value 4629418941960159232.000000 for parameter 'qmax' out of range
  
  [NULL @ 0x24b23c0] Value 4613937818241073152.000000 for parameter 'qdiff' out of range
  
  [NULL @ 0x24b23c0] Value -4616189618054758400.000000 for parameter 'wpredp' out of range
  
  [NULL @ 0x24b23c0] Value 4607182418800017408.000000 for parameter 'bug' out of range
  
  [NULL @ 0x24b23c0] Value 4607182418800017408.000000 for parameter 'er' out of range
  
  [NULL @ 0x24b23c0] Value 4607182418800017408.000000 for parameter 'err_detect' out of range
  
  [NULL @ 0x24b23c0] Value 4613937818241073152.000000 for parameter 'ec' out of range
  
  [NULL @ 0x24b23c0] Value 4620693217682128896.000000 for parameter 'ildctcmp' out of range
  
  [NULL @ 0x24b23c0] Value 4620693217682128896.000000 for parameter 'subq' out of range
  
  [NULL @ 0x24b23c0] Value 4696837138094751744.000000 for parameter 'ibias' out of range
  
  [NULL @ 0x24b23c0] Value 4696837138094751744.000000 for parameter 'pbias' out of range
  
  [NULL @ 0x24b23c0] Value 4642507528377204736.000000 for parameter 'lmin' out of range
  
  [NULL @ 0x24b23c0] Value 4660262442142531584.000000 for parameter 'lmax' out of range
  
  [NULL @ 0x24b23c0] Value 4696130710463840256.000000 for parameter 'flags2' out of range
  
  [NULL @ 0x24b23c0] Value 4607182418800017408.000000 for parameter 'threads' out of range
  
  [NULL @ 0x24b23c0] Value 4620693217682128896.000000 for parameter 'nssew' out of range
  
  [NULL @ 0x24b23c0] Value -4586705114244317184.000000 for parameter 'profile' out of range
  
  [NULL @ 0x24b23c0] Value -4586705114244317184.000000 for parameter 'level' out of range
  
  [NULL @ 0x24b23c0] Value 4623507967449235456.000000 for parameter 'skipcmp' out of range
  
  [NULL @ 0x24b23c0] Value 4642507528377204736.000000 for parameter 'mblmin' out of range
  
  [NULL @ 0x24b23c0] Value 4660262442142531584.000000 for parameter 'mblmax' out of range
  
  [NULL @ 0x24b23c0] Value 4643211215818981376.000000 for parameter 'mepc' out of range
  
  [NULL @ 0x24b23c0] Value 4607182418800017408.000000 for parameter 'bidir_refine' out of range
  
  [NULL @ 0x24b23c0] Value -4616189618054758400.000000 for parameter 'cqp' out of range
  
  [NULL @ 0x24b23c0] Value 4627730092099895296.000000 for parameter 'keyint_min' out of range
  
  [NULL @ 0x24b23c0] Value 4607182418800017408.000000 for parameter 'refs' out of range
  
  [NULL @ 0x24b23c0] Value -4616189618054758400.000000 for parameter 'directpred' out of range
  
  [NULL @ 0x24b23c0] Value 4618441417868443648.000000 for parameter 'sc_factor' out of range
  
  [NULL @ 0x24b23c0] Value 4643211215818981376.000000 for parameter 'mv0_threshold' out of range
  
  [NULL @ 0x24b23c0] Value 4630826316843712512.000000 for parameter 'b_sensitivity' out of range
  
  [NULL @ 0x24b23c0] Value -4616189618054758400.000000 for parameter 'compression_level' out of range
  
  [NULL @ 0x24b23c0] Value -4616189618054758400.000000 for parameter 'min_prediction_order' out of range
  
  [NULL @ 0x24b23c0] Value -4616189618054758400.000000 for parameter 'max_prediction_order' out of range
  
  [NULL @ 0x24b23c0] Value -4616189618054758400.000000 for parameter 'prediction_order_method' out of range
  
  [NULL @ 0x24b23c0] Value -4616189618054758400.000000 for parameter 'min_partition_order' out of range
  
  [NULL @ 0x24b23c0] Value -4616189618054758400.000000 for parameter 'max_partition_order' out of range
  
  [NULL @ 0x24b23c0] Value 4607182418800017408.000000 for parameter 'ticks_per_frame' out of range
  
  [NULL @ 0x24b23c0] Value 4611686018427387904.000000 for parameter 'color_primaries' out of range
  
  [NULL @ 0x24b23c0] Value 4611686018427387904.000000 for parameter 'color_trc' out of range
  
  [NULL @ 0x24b23c0] Value 4611686018427387904.000000 for parameter 'colorspace' out of range
  
  [NULL @ 0x24b23c0] Value -4616189618054758400.000000 for parameter 'aq_mode' out of range
  
  [NULL @ 0x24b23c0] Value -4616189618054758400.000000 for parameter 'rc_lookahead' out of range
  
  [NULL @ 0x24b23c0] Value -4616189618054758400.000000 for parameter 'lpc_type' out of range
  
  [NULL @ 0x24b23c0] Value -4616189618054758400.000000 for parameter 'lpc_passes' out of range
  
  [NULL @ 0x24b23c0] Value 4613937818241073152.000000 for parameter 'thread_type' out of range
  
  [NULL @ 0x24b23c0] Value -4616189618054758400.000000 for parameter 'request_sample_fmt' out of range
  
  frames.mpeg: could not find codec parameters

  I’m at a loss as to what to do with this problem, and am looking for some assistance.

  Kind regards,

  Jason

• h264/aac encoded video not playing in Edge, but working Chrome and Firefox

  7 août 2016, par Flai

  I am trying to encode a video to use in the HTML5 video-Element. However, it doesn’t work in IE Edge on my PC. It does, however, work on :

  • Chrome, Firefox
  • My android smartphone (Chrome, Firefox)

  I have two very similar files (one being the big bucks bunny trailer, the second being the video I’m trying to encode) :

  Picture : Encoding-Settings

  As you can see "1.mp4" is playing correctly, and "3.mp4" is not.

  You can download the files here : 3.mp4 - change 3.mp4 to 1.mp4 to get the other video.

  My ffmpeg-commandline is this :

  ffmpeg.exe -i in.mp4 -c:v libx264 -movflags faststart -profile:v baseline -level 3.1 -preset slower -crf 30 -c:a copy 3.mp4

  However, I have also tried :

  ffmpeg.exe -i in.mp4 -c:v libx264 -profile:v baseline -level 3.1 -preset slower -crf 30 -c:a copy 3.mp4

  and

  ffmpeg.exe -i in.mp4 -c:v libx264 -preset slower -crf 30 -c:a copy 3.mp4

  The output of ffprobe of the result is (for the file that works) :

  $ ffprobe.exe 1.mp4
  
  ffprobe version N-81045-g450cf40 Copyright (c) 2007-2016 the FFmpeg developers
  
    built with gcc 5.4.0 (GCC)
  
    configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --enable-libebur128 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-decklink --enable-zlib
  
    libavutil      55. 28.100 / 55. 28.100
  
    libavcodec     57. 50.100 / 57. 50.100
  
    libavformat    57. 42.100 / 57. 42.100
  
    libavdevice    57.  0.102 / 57.  0.102
  
    libavfilter     6. 47.100 /  6. 47.100
  
    libswscale      4.  1.100 /  4.  1.100
  
    libswresample   2.  1.100 /  2.  1.100
  
    libpostproc    54.  0.100 / 54.  0.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '1.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf55.12.102
  
    Duration: 00:00:33.05, start: 0.000000, bitrate: 891 kb/s
  
      Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 512x288, 770 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
      Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 127 kb/s (default)
  
      Metadata:
  
        handler_name    : SoundHandler

  and for the file that doesn’t work :

  $ ffprobe.exe 3.mp4
  
  ffprobe version N-81045-g450cf40 Copyright (c) 2007-2016 the FFmpeg developers
  
    built with gcc 5.4.0 (GCC)
  
    configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --enable-libebur128 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-decklink --enable-zlib
  
    libavutil      55. 28.100 / 55. 28.100
  
    libavcodec     57. 50.100 / 57. 50.100
  
    libavformat    57. 42.100 / 57. 42.100
  
    libavdevice    57.  0.102 / 57.  0.102
  
    libavfilter     6. 47.100 /  6. 47.100
  
    libswscale      4.  1.100 /  4.  1.100
  
    libswresample   2.  1.100 /  2.  1.100
  
    libpostproc    54.  0.100 / 54.  0.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '3.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf57.42.100
  
    Duration: 00:00:13.10, start: 0.000000, bitrate: 2317 kb/s
  
      Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 2143 kb/s, 60 fps, 60 tbr, 15360 tbn, 120 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
      Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 163 kb/s (default)
  
      Metadata:
  
        handler_name    : SoundHandler

  Can anyone point me in the right direction what the difference between the two videos is and how I can fix my ffmpeg command-line to play "3.mp4" in IE Edge ?

• ffmpeg convert to webm error "too many invisible frames"

  24 janvier 2019, par Вадим Коломиец

  I need to convert any format (for example, mp4, avi etc) to .webm with own ioContext. I build ffmpeg with vpx, ogg, vorbis, opus and create simple project. But when i write any frame i get error "Too many invisible frames. Failed to send packet to filter vp9_superframe for stream 0"

  I’ve already tried convert from webm to webm with copy codec params with avcodec_parameters_copy and this works.

      #include <qcoreapplication>
  
  #include <qfileinfo>
  
  #include <iostream>
  
  #include <fstream>
  
  
  
  extern "C" {
  
  #include <libavcodec></libavcodec>avcodec.h>
  
  #include <libavformat></libavformat>avformat.h>
  
  #include <libavutil></libavutil>timestamp.h>
  
  #include <libavformat></libavformat>avformat.h>
  
  #include <libavfilter></libavfilter>buffersink.h>
  
  #include <libavfilter></libavfilter>buffersrc.h>
  
  #include <libavutil></libavutil>opt.h>
  
  #include <libavutil></libavutil>pixdesc.h>
  
  }
  
  
  
  using namespace std;
  
  
  
  struct BufferData {
  
      QByteArray data;
  
      uint fullsize;
  
  
  
      BufferData() {
  
          fullsize =0;
  
      }
  
  };
  
  
  
  
  
  static int write_packet_to_buffer(void *opaque, uint8_t *buf, int buf_size)         {
  
      BufferData *bufferData = static_cast(opaque);
  
      bufferData->fullsize += buf_size;
  
      bufferData->data.append((const char*)buf, buf_size);
  
      return buf_size;
  
  }
  
  
  
  
  
  static bool writeBuffer(const QString &amp;filename, BufferData *bufferData) {
  
      QFile file(filename);
  
      if( !file.open(QIODevice::WriteOnly) )  return false;
  
      file.write(bufferData->data);
  
      qDebug()&lt;&lt;"FILE SIZE = " &lt;&lt; file.size();
  
      file.close();
  
      return true;
  
  }
  
  
  
  int main(int argc, char *argv[])
  
  {
  
      QCoreApplication a(argc, argv);
  
      AVOutputFormat *ofmt = NULL;
  
      AVFormatContext *ifmt_ctx = NULL, *ofmt_ctx = NULL;
  
      AVPacket pkt;
  
      int ret;
  
      int stream_index = 0;
  
      int *stream_mapping = NULL;
  
      int stream_mapping_size = 0;
  
  
  
      const char *in_filename  = "../assets/sample.mp4";
  
      const char *out_filename = "../assets/sample_new.webm";
  
  
  
  
  
      //------------------------  Input file  ----------------------------
  
      if ((ret = avformat_open_input(&amp;ifmt_ctx, in_filename, 0, 0)) &lt; 0) {
  
          fprintf(stderr, "Could not open input file '%s'", in_filename);
  
          return 1;
  
      }
  
  
  
      if ((ret = avformat_find_stream_info(ifmt_ctx, 0)) &lt; 0) {
  
          fprintf(stderr, "Failed to retrieve input stream information");
  
          return 1;
  
      }
  
      av_dump_format(ifmt_ctx, 0, in_filename, 0);
  
      //-----------------------------------------------------------------
  
  
  
  
  
      //---------------------- BUFFER -------------------------
  
     AVIOContext *avio_ctx = NULL;
  
     uint8_t *avio_ctx_buffer = NULL;
  
     size_t avio_ctx_buffer_size = 4096*1024;
  
     const size_t bd_buf_size = 1024*1024;
  
     /* fill opaque structure used by the AVIOContext write callback */
  
     avio_ctx_buffer = (uint8_t*)av_malloc(avio_ctx_buffer_size);
  
     if (!avio_ctx_buffer) return AVERROR(ENOMEM);
  
  
  
     BufferData bufferData;
  
     avio_ctx = avio_alloc_context(avio_ctx_buffer, avio_ctx_buffer_size,
  
                                   1, &amp;bufferData, NULL,
  
                                   &amp;write_packet_to_buffer, NULL);
  
  
  
  
  
     if (!avio_ctx) return AVERROR(ENOMEM);
  
     //------------------------------------------------------
  
  
  
  
  
      avformat_alloc_output_context2(&amp;ofmt_ctx, NULL, NULL, out_filename);
  
          if (!ofmt_ctx) {
  
          fprintf(stderr, "Could not create output context\n");
  
          ret = AVERROR_UNKNOWN;
  
          return 1;
  
      }
  
  
  
      //------------------------  Stream list  ----------------------------
  
      stream_mapping_size = ifmt_ctx->nb_streams;
  
      stream_mapping = (int*)av_mallocz_array(stream_mapping_size,     sizeof(*stream_mapping));
  
      if (!stream_mapping) {
  
          ret = AVERROR(ENOMEM);
  
          return 1;
  
      }
  
      //-------------------------------------------------------------------
  
  
  
  
  
  
  
      //------------------------  Output file  ----------------------------
  
      AVCodec *encoder;
  
      AVCodecContext *input_ctx;
  
      AVCodecContext *enc_ctx;
  
      for (int i=0; i &lt; ifmt_ctx->nb_streams; i++) {
  
          AVStream *out_stream;
  
          AVStream *in_stream = ifmt_ctx->streams[i];
  
          AVCodecParameters *in_codecpar = in_stream->codecpar;
  
  
  
          if (in_codecpar->codec_type != AVMEDIA_TYPE_AUDIO &amp;&amp;
  
              in_codecpar->codec_type != AVMEDIA_TYPE_VIDEO &amp;&amp;
  
              in_codecpar->codec_type != AVMEDIA_TYPE_SUBTITLE) {
  
              stream_mapping[i] = -1;
  
              continue;
  
          }
  
  
  
          enc_ctx = avcodec_alloc_context3(encoder);
  
          if (!enc_ctx) {
  
              av_log(NULL, AV_LOG_FATAL, "Failed to allocate the encoder context\n");
  
              return AVERROR(ENOMEM);
  
          }
  
  
  
          stream_mapping[i] = stream_index++;
  
  
  
          out_stream = avformat_new_stream(ofmt_ctx, NULL);
  
          if (!out_stream) {
  
              fprintf(stderr, "Failed allocating output stream\n");
  
              ret = AVERROR_UNKNOWN;
  
              return 1;
  
          }
  
  
  
          out_stream->codecpar->width = in_codecpar->width;
  
          out_stream->codecpar->height = in_codecpar->height;
  
          out_stream->codecpar->level = in_codecpar->level;
  
          out_stream->codecpar->format =in_codecpar->format;
  
          out_stream->codecpar->profile =in_codecpar->profile;
  
          out_stream->codecpar->bit_rate =in_codecpar->bit_rate;
  
          out_stream->codecpar->channels =in_codecpar->channels;
  
          out_stream->codecpar->codec_tag = 0;
  
          out_stream->codecpar->color_trc =in_codecpar->color_trc;
  
          out_stream->codecpar->codec_type =in_codecpar->codec_type;
  
          out_stream->codecpar->frame_size =in_codecpar->frame_size;
  
          out_stream->codecpar->block_align =in_codecpar->block_align;
  
          out_stream->codecpar->color_range =in_codecpar->color_range;
  
          out_stream->codecpar->color_space =in_codecpar->color_space;
  
          out_stream->codecpar->field_order =in_codecpar->field_order;
  
          out_stream->codecpar->sample_rate =in_codecpar->sample_rate;
  
          out_stream->codecpar->video_delay =in_codecpar->video_delay;
  
          out_stream->codecpar->seek_preroll =in_codecpar->seek_preroll;
  
          out_stream->codecpar->channel_layout =in_codecpar->channel_layout;
  
          out_stream->codecpar->chroma_location =in_codecpar->chroma_location;
  
          out_stream->codecpar->color_primaries =in_codecpar->color_primaries;
  
          out_stream->codecpar->initial_padding =in_codecpar->initial_padding;
  
          out_stream->codecpar->trailing_padding =in_codecpar->trailing_padding;
  
          out_stream->codecpar->bits_per_raw_sample = in_codecpar->bits_per_raw_sample;
  
          out_stream->codecpar->sample_aspect_ratio.num = in_codecpar->sample_aspect_ratio.num;
  
          out_stream->codecpar->sample_aspect_ratio.den = in_codecpar->sample_aspect_ratio.den;
  
          out_stream->codecpar->bits_per_coded_sample   = in_codecpar->bits_per_coded_sample;
  
  
  
  
  
          if (in_codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
  
              out_stream->codecpar->codec_id =ofmt_ctx->oformat->video_codec;
  
          }
  
          else if(in_codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
  
              out_stream->codecpar->codec_id = ofmt_ctx->oformat-    >audio_codec;
  
          }
  
      }
  
      av_dump_format(ofmt_ctx, 0, out_filename, 1);
  
      ofmt_ctx->pb = avio_ctx;
  
  
  
      ret = avformat_write_header(ofmt_ctx, NULL);
  
      if (ret &lt; 0) {
  
          fprintf(stderr, "Error occurred when opening output file\n");
  
          return 1;
  
      }
  
      //------------------------------------------------------------------------------
  
  
  
  
  
      while (1) {
  
          AVStream *in_stream, *out_stream;
  
  
  
          ret = av_read_frame(ifmt_ctx, &amp;pkt);
  
          if (ret &lt; 0)
  
              break;
  
  
  
          in_stream  = ifmt_ctx->streams[pkt.stream_index];
  
          if (pkt.stream_index >= stream_mapping_size ||
  
              stream_mapping[pkt.stream_index] &lt; 0) {
  
              av_packet_unref(&amp;pkt);
  
              continue;
  
          }
  
  
  
          pkt.stream_index = stream_mapping[pkt.stream_index];
  
          out_stream = ofmt_ctx->streams[pkt.stream_index];
  
  
  
          /* copy packet */
  
          pkt.pts = av_rescale_q_rnd(pkt.pts, in_stream->time_base, out_stream->time_base, AVRounding(AV_ROUND_NEAR_INF|AV_ROUND_PASS_MINMAX));
  
          pkt.dts = av_rescale_q_rnd(pkt.dts, in_stream->time_base, out_stream->time_base, AVRounding(AV_ROUND_NEAR_INF|AV_ROUND_PASS_MINMAX));
  
          pkt.duration = av_rescale_q(pkt.duration, in_stream->time_base, out_stream->time_base);
  
          pkt.pos = -1;
  
  
  
          ret = av_interleaved_write_frame(ofmt_ctx, &amp;pkt);
  
          if (ret &lt; 0) {
  
              fprintf(stderr, "Error muxing packet\n");
  
              break;
  
          }
  
          av_packet_unref(&amp;pkt);
  
      }
  
      av_write_trailer(ofmt_ctx);
  
      avformat_close_input(&amp;ifmt_ctx);
  
  
  
      /* close output */
  
      writeBuffer(fileNameOut, &amp;bufferData);
  
      avformat_free_context(ofmt_ctx);
  
      av_freep(&amp;stream_mapping);
  
      if (ret &lt; 0 &amp;&amp; ret != AVERROR_EOF) {
  
          fprintf(stderr, "Error occurred: %d\n",ret);
  
          return 1;
  
      }
  
      return a.exec();
  
  }
  
  </fstream></iostream></qfileinfo></qcoreapplication>