Recherche avancée

Sur d’autres sites (15641)

• Audio and video out of sync. Stream mp4 files Concatenation using fluent-ffmpeg

  13 mars 2021, par JosepB

  First of all sorry if the question is duplicated. But I couldn't find out the right answer in other questions.

  


  I'm trying to concatenate AWS S3 mp4 files using streams and fluent-ffmpeg. I managed to download and upload the concatenated files without storing it to the disk.

  


  The concatenation seems correct but when I'm selecting a point in time of the video player (VLC media player or QuickTime) time bar seems the audio and video are out of sync.

  


  This is the nodejs fluent-ffmpeg implementation :

  


  concatenation = (listFileName, passthroughStream) => {

    return new Promise((resolve) => {  
        let command = ffmpeg().input(listFileName)
            .inputOptions(['-f concat', '-safe 0', '-protocol_whitelist', 'file,http,tcp,https,tls'])
            //.videoCodec('libx264')
            .outputFormat('mp4')
            .outputOptions('-movflags frag_keyframe+empty_moov')
            
            var ffstream = command.on('end', function() {
                const result = 'files have been merged succesfully';
                resolve(result);
            })
            .on('error', function(err) {
                console.log('an error happened: ' + err.message);
                reject(err);
            }).pipe(passthroughStream);
            ffstream.on('data', ((chunk) => {
                console.log('ffmpeg just wrote ' + chunk.length + ' bytes');
            }));
    });        
}


  


  I'm using S3 file signed URLs in the file. Somthing like this :

  


  file 'https://bucket.s3.region.amazonaws.com/file_0.mp4'
file 'https://bucket.s3.region.amazonaws.com/file_1.mp4'


  


  I think that this out of sync is because of the fragmentated output and maybe is not possible to do that without downloading the files, but maybe there's a possible solution.

  


  Is there some way to do the mp4 concatenation without storing the files to the disk ? Or am I doing something wrong ?

  


• avcodec/pngdec : Fix APNG_DISPOSE_OP_BACKGROUND

  20 août 2022, par Andreas Rheinhardt

  avcodec/pngdec : Fix APNG_DISPOSE_OP_BACKGROUND
  APNG works with a single reference frame and an output frame.
  
  According to the spec, decoding APNG works by decoding
  
  the current IDAT/fdAT chunks (which decodes to a rectangular
  
  subregion of the whole image region), followed by either
  
  overwriting the region of the output frame with the newly
  
  decoded data or by blending the newly decoded data with
  
  the data from the reference frame onto the current subregion
  
  of the output frame. The remainder of the output frame
  
  is just copied from the reference frame.
  
  Then the reference frame might be left untouched
  
  (APNG_DISPOSE_OP_PREVIOUS), it might be replaced by the output
  
  frame (APNG_DISPOSE_OP_NONE) or the rectangular subregion
  
  corresponding to the just decoded frame has to be reset
  
  to black (APNG_DISPOSE_OP_BACKGROUND).
  The latter case is not handled correctly by our decoder :
  
  It only performs resetting the rectangle in the reference frame
  
  when decoding the next frame ; and since commit
  
  b593abda6c642cb0c3959752dd235c2faf66837f it does not reset
  
  the reference frame permanently, but only temporarily (i.e.
  
  it only affects decoding the frame after the frame with
  
  APNG_DISPOSE_OP_BACKGROUND). This is a problem if the
  
  frame after the APNG_DISPOSE_OP_BACKGROUND frame uses
  
  APNG_DISPOSE_OP_PREVIOUS, because then the frame after
  
  the APNG_DISPOSE_OP_PREVIOUS frame has an incorrect reference
  
  frame. (If it is not followed by an APNG_DISPOSE_OP_PREVIOUS
  
  frame, the decoder only keeps a reference to the output frame,
  
  which is ok.)
  This commit fixes this by being much closer to the spec
  
  than the earlier code : Resetting the background is no longer
  
  postponed until the next frame ; instead it is applied to
  
  the reference frame.
  Fixes ticket #9602.
  (For multithreaded decoding it was actually already broken
  
  since commit 5663301560d77486c7f7c03c1aa5f542fab23c24.)
  Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
  

  • [DH] libavcodec/pngdec.c

• LibVLC DXVA2 Windows C++ Hardware Acceleration

  15 novembre 2016, par Sergiu Vlad

  I want to decode a h264 RTSP stream using DXVA2 Accelerated decoder. In VLC it does work but in my code have the following output :

  avcodec generic warning: threaded frame decoding is not compatible with DXVA2, disabled
  
  avcodec generic debug: available hardware decoder output format 61 (dxva2_vld)
  
  avcodec generic debug: available hardware decoder output format 128 (d3d11va_vld)
  
  avcodec generic debug: available software decoder output format 12 (yuvj420p)
  
  core generic debug: looking for hw decoder module matching "any": 1 candidates
  
  core generic debug: no hw decoder modules matched

  Is this a problem with NV12 conversion ? Is there a way to force DXVA2 ?

  Thanks

  CODE :

      #include 
  
  #include 
  
  #include 
  
  #include 
  
  #include 
  
  #include <iostream>
  
  
  
  #include 
  
  #include <ctime>
  
  #include <vlc></vlc>vlc.h>
  
  
  
  // RTSP address
  
  const char* rtspAddress = "rtsp://admin:admin@192.168.0.245/live_st1";
  
  // Video resolution WxH
  
  cv::Size rtspRes(1920, 1080);
  
  
  
  struct VideoDataStruct
  
  {
  
      int param;
  
  };
  
  
  
  int done = 0;
  
  libvlc_media_player_t *mp;
  
  unsigned int videoBufferSize = 0;
  
  uint8_t *videoBuffer = 0;
  
  
  
  void cbVideoPrerender(void *p_video_data, uint8_t **pp_pixel_buffer, int size)
  
  {
  
      if (size > videoBufferSize || !videoBuffer)
  
      {
  
          printf("Reallocate raw video buffer %d bytes\n", size);
  
          free(videoBuffer);
  
          videoBuffer = (uint8_t *)malloc(size);
  
          videoBufferSize = size;
  
      }
  
  
  
      // videoBuffer = (uint8_t *)malloc(size);
  
      *pp_pixel_buffer = videoBuffer;
  
  }
  
  void cbVideoPostrender(void *p_video_data, uint8_t *p_pixel_buffer, int width, int height, int pixel_pitch, int size, int64_t pts)
  
  {
  
      // Unlocking
  
      //CloseHandle(hMutex);
  
  
  
  }
  
  
  
  //static void handleEvent(const libvlc_event_t* pEvt, void* pUserData)
  
  //{
  
  //    libvlc_time_t time;
  
  //    switch (pEvt->type)
  
  //    {
  
  //    case libvlc_MediaPlayerTimeChanged:
  
  //        time = libvlc_media_player_get_time(mp);
  
  //        printf("MediaPlayerTimeChanged %lld ms\n", (long long)time);
  
  //        break;
  
  //    case libvlc_MediaPlayerEndReached:
  
  //        printf("MediaPlayerEndReached\n");
  
  //        done = 1;
  
  //        break;
  
  //    default:
  
  //        printf("%s\n", libvlc_event_type_name(pEvt->type));
  
  //    }
  
  //}
  
  
  
  clock_t startTime[8];
  
  int framesReceivedThisSecond[8];
  
  
  
  int main()
  
  {
  
  
  
  
  
      // VLC pointers
  
      libvlc_instance_t *inst;
  
      libvlc_media_t *m;
  
      void *pUserData = 0;
  
  
  
      VideoDataStruct dataStruct;
  
  
  
      // VLC options
  
      char smem_options[1000];
  
  
  
      // RV24
  
      sprintf(smem_options
  
              , "#transcode{vcodec=RV24}:smem{"
  
                "video-prerender-callback=%lld,"
  
                "video-postrender-callback=%lld,"
  
                "video-data=%lld,"
  
                "no-time-sync},"
  
              , (long long int)(intptr_t)(void*)&amp;cbVideoPrerender
  
              , (long long int)(intptr_t)(void*)&amp;cbVideoPostrender
  
              , (long long int)(intptr_t)(void*)&amp;dataStruct
  
              );
  
  
  
      const char * const vlc_args[] = {
  
          "-I", "dummy",            // Don't use any interface
  
          "--ignore-config",        // Don't use VLC's config
  
          "--extraintf=logger",     // Log anything
  
          "--verbose=4",            // Be verbose
  
          //        "--ffmpeg-hw",
  
          //        "-vvv",
  
          "--ffmpeg-hw",
  
          "--avcodec-hw=any",
  
          "--sout", smem_options    // Stream to memory
  
  
  
      };
  
  
  
      // Launch VLC
  
      inst = libvlc_new(sizeof(vlc_args) / sizeof(vlc_args[0]), vlc_args);
  
  
  
      // Create a new item
  
      m = libvlc_media_new_location(inst, rtspAddress);
  
  
  
  
  
  
  
      // Create a media player playing environement
  
      mp = libvlc_media_player_new_from_media(m);
  
  
  
      //    libvlc_event_manager_t* eventManager = libvlc_media_player_event_manager(mp);
  
      //    libvlc_event_attach(eventManager, libvlc_MediaPlayerTimeChanged, handleEvent, pUserData);
  
      //    libvlc_event_attach(eventManager, libvlc_MediaPlayerEndReached, handleEvent, pUserData);
  
      //    libvlc_event_attach(eventManager, libvlc_MediaPlayerPositionChanged, handleEvent, pUserData);
  
  
  
      //libvlc_video_set_format(mp, "RV24", 240, 320, 240 * 3 );
  
  
  
      // play the media_player
  
      libvlc_media_player_play(mp);
  
  
  
  
  
      // Create a window for displaying the video
  
      std::string winName("Demo Video");
  
      cv::namedWindow(winName, cv::WINDOW_AUTOSIZE);
  
  
  
      cv::Mat frame;
  
      int key = 0;
  
  
  
      // Endless loop, press Esc to quit
  
      while (key != 27)
  
      {
  
  
  
          // Check for invalid input
  
          if (videoBuffer)
  
          {
  
              // CV_8UC3 = 8 bits, 3 chanels
  
              frame = cv::Mat(rtspRes, CV_8UC3, videoBuffer);
  
          }
  
  
  
  
  
          if (frame.rows == 0 || frame.cols == 0)
  
              continue;
  
  
  
          int stream_number=0;
  
          framesReceivedThisSecond[stream_number]++;
  
          long    duration = ( std::clock() - startTime[stream_number] );
  
          if(duration>1000)
  
          {
  
              std::cout&lt;&lt;"\n"&lt;&lt;"FPS "&lt;code></ctime></iostream>

  FULL LOG :

  core libvlc debug: Copyright © 1996-2016 the VideoLAN team
  
  core libvlc debug: revision 2.2.3-37-g888b7e89
  
  core libvlc debug: configured with ../extras/package/win32/../../../configure  '--enable-update-check' '--enable-lua' '--enable-faad' '--enable-flac' '--enable-theora' '--enable-twolame' '--enable-quicktime' '--enable-avcodec' '--enable-merge-ffmpeg' '--enable-dca' '--enable-mpc' '--enable-libass' '--enable-x264' '--enable-schroedinger' '--enable-realrtsp' '--enable-live555' '--enable-dvdread' '--enable-shout' '--enable-goom' '--enable-caca' '--disable-sdl' '--enable-qt' '--enable-skins2' '--enable-sse' '--enable-mmx' '--enable-libcddb' '--enable-zvbi' '--disable-telx' '--enable-nls' '--host=i686-w64-mingw32' '--build=x86_64-pc-linux-gnu' 'build_alias=x86_64-pc-linux-gnu' 'host_alias=i686-w64-mingw32' 'PKG_CONFIG_PATH=/opt/intel/opencl:' 'PKG_CONFIG_LIBDIR=/home/svlad/DEV/vlc/contrib/i686-w64-mingw32/lib/pkgconfig'
  
  core libvlc debug: using multimedia timers as clock source
  
  core libvlc debug:  min period: 1 ms, max period: 1000000 ms
  
  core libvlc debug: searching plug-in modules
  
  core libvlc debug: loading plugins cache file C:\DEV\VLCStreamProcessor\build-untitled-Desktop_Qt_5_5_1_MSVC2013_32bit-Debug\debug\plugins\plugins.dat
  
  core libvlc debug: recursively browsing `C:\DEV\VLCStreamProcessor\build-untitled-Desktop_Qt_5_5_1_MSVC2013_32bit-Debug\debug\plugins'
  
  core libvlc debug: saving plugins cache C:\DEV\VLCStreamProcessor\build-untitled-Desktop_Qt_5_5_1_MSVC2013_32bit-Debug\debug\plugins\plugins.dat
  
  core libvlc debug: plug-ins loaded: 418 modules
  
  core libvlc debug: translation test: code is "C"
  
  core libvlc debug: CPU has capabilities MMX MMXEXT SSE SSE2 SSE3 SSSE3 SSE4.1 SSE4.2 FPU 
  
  core playlist debug: creating audio output
  
  core audio output debug: looking for audio output module matching "any": 6 candidates
  
  directsound audio output debug: found 2 devices
  
  core audio output debug: using audio output module "directsound"
  
  core playlist debug: keeping audio output
  
  core interface debug: looking for interface module matching "logger,none": 16 candidates
  
  logger interface: VLC media player - 2.2.4 Weatherwax
  
  logger interface: Copyright © 1996-2016 the VideoLAN team
  
  logger interface: 
  
  Warning: if you cannot access the GUI anymore, open a command-line window, go to the directory where you installed VLC and run "vlc -I qt"
  
  logger interface: using logger.
  
  logger interface warning: no log filename provided, using `vlc-log.txt'
  
  logger interface debug: opening logfile `vlc-log.txt'
  
  core libvlc debug: VLC media player - 2.2.4 Weatherwax
  
  core libvlc debug: Copyright © 1996-2016 the VideoLAN team
  
  core libvlc debug: revision 2.2.3-37-g888b7e89
  
  core libvlc debug: configured with ../extras/package/win32/../../../configure  '--enable-update-check' '--enable-lua' '--enable-faad' '--enable-flac' '--enable-theora' '--enable-twolame' '--enable-quicktime' '--enable-avcodec' '--enable-merge-ffmpeg' '--enable-dca' '--enable-mpc' '--enable-libass' '--enable-x264' '--enable-schroedinger' '--enable-realrtsp' '--enable-live555' '--enable-dvdread' '--enable-shout' '--enable-goom' '--enable-caca' '--disable-sdl' '--enable-qt' '--enable-skins2' '--enable-sse' '--enable-mmx' '--enable-libcddb' '--enable-zvbi' '--disable-telx' '--enable-nls' '--host=i686-w64-mingw32' '--build=x86_64-pc-linux-gnu' 'build_alias=x86_64-pc-linux-gnu' 'host_alias=i686-w64-mingw32' 'PKG_CONFIG_PATH=/opt/intel/opencl:' 'PKG_CONFIG_LIBDIR=/home/svlad/DEV/vlc/contrib/i686-w64-mingw32/lib/pkgconfig'
  
  core interface debug: using interface module "logger"
  
  core generic debug: creating audio output
  
  core audio output debug: looking for audio output module matching "any": 6 candidates
  
  directsound audio output debug: found 2 devices
  
  core audio output debug: using audio output module "directsound"
  
  core generic debug: keeping audio output
  
  core input debug: Creating an input for 'rtsp://192.168.0.245/live_st1'
  
  core stream output debug: using sout chain=`transcode{vcodec=RV24}:smem{video-prerender-callback=15667245,video-postrender-callback=15667630,video-data=3471900,no-time-sync},'
  
  core stream output debug: stream=`smem'
  
  core stream out debug: looking for sout stream module matching "smem": 22 candidates
  
  core stream out debug: set config option: sout-smem-video-prerender-callback to 15667245
  
  core stream out debug: set config option: sout-smem-video-postrender-callback to 15667630
  
  core stream out debug: set config option: sout-smem-video-data to 3471900
  
  core stream out debug: set config option: sout-smem-time-sync to (null)
  
  core stream out debug: using sout stream module "stream_out_smem"
  
  core stream output debug: stream=`transcode'
  
  core stream out debug: looking for sout stream module matching "transcode": 22 candidates
  
  core stream out debug: set config option: sout-transcode-vcodec to RV24
  
  stream_out_transcode stream out debug: Checking video codec mapping for RV24 got RV24 
  
  stream_out_transcode stream out debug: codec video=RV24 0x0 scaling: 0.000000 0kb/s
  
  core stream out debug: using sout stream module "stream_out_transcode"
  
  core input debug: using timeshift granularity of 50 MiB, in path 'C:\Users\BCDVideo\AppData\Local\Temp'
  
  core input debug: `rtsp://admin:admin@192.168.0.245/live_st1' gives access `rtsp' demux `' path `admin:admin@192.168.0.245/live_st1'
  
  core input debug: specified demux `any'
  
  core input debug: creating demux: access='rtsp' demux='any' location='admin:admin@192.168.0.245/live_st1' file='\\admin:admin@192.168.0.245\live_st1'
  
  core demux debug: looking for access_demux module matching "rtsp": 12 candidates
  
  live555 demux debug: version 2016.01.12
  
  live555 demux debug: RTP subsession 'video/H264'
  
  core input debug: selecting program id=0
  
  live555 demux debug: setup start: 0.000000 stop:0.000000
  
  live555 demux debug: We have a timeout of 60 seconds
  
  live555 demux debug: spawned timeout thread
  
  live555 demux debug: play start: 0.000000 stop:0.000000
  
  core demux debug: using access_demux module "live555"
  
  core decoder debug: looking for packetizer module matching "any": 23 candidates
  
  packetizer_h264 decoder debug: found NAL_SPS (sps_id=0)
  
  packetizer_h264 decoder debug: found NAL_PPS (pps_id=0 sps_id=0)
  
  core decoder debug: using packetizer module "packetizer_h264"
  
  core input debug: starting in sync mode
  
  core demux meta debug: looking for meta reader module matching "any": 2 candidates
  
  lua demux meta debug: Trying Lua scripts in C:\Users\BCDVideo\AppData\Roaming\vlc\lua\meta\reader
  
  lua demux meta debug: Trying Lua scripts in C:\DEV\VLCStreamProcessor\build-untitled-Desktop_Qt_5_5_1_MSVC2013_32bit-Debug\debug\lua\meta\reader
  
  core demux meta debug: no meta reader modules matched
  
  core input debug: `rtsp://admin:admin@192.168.0.245/live_st1' successfully opened
  
  core input debug: switching to async mode
  
  core input debug: Buffering 0%
  
  core input debug: Buffering 3%
  
  core input debug: Buffering 10%
  
  core stream output debug: adding a new sout input (sout_input:00c21c50)
  
  core input debug: Buffering 13%
  
  stream_out_transcode stream out debug: creating video transcoding from fcc=`h264' to fcc=`RV24'
  
  core input debug: Buffering 16%
  
  core generic debug: looking for decoder module matching "any": 43 candidates
  
  core input debug: Buffering 20%
  
  core input debug: Buffering 23%
  
  avcodec generic debug: CPU flags: 0x0107d3db
  
  core input debug: Buffering 30%
  
  avcodec generic debug: trying to use direct rendering
  
  core input debug: Buffering 33%
  
  avcodec generic debug: allowing 4 thread(s) for decoding
  
  core input debug: Buffering 36%
  
  avcodec generic warning: threaded frame decoding is not compatible with DXVA2, disabled
  
  core input debug: Buffering 40%
  
  avcodec generic debug: avcodec codec (H264 - MPEG-4 AVC (part 10)) started
  
  core input debug: Buffering 43%
  
  avcodec generic debug: using slice thread mode with 4 threads
  
  core input debug: Buffering 50%
  
  core generic debug: using decoder module "avcodec"
  
  core input debug: Buffering 53%
  
  core encoder debug: looking for encoder module matching "any": 20 candidates
  
  core input debug: Buffering 56%
  
  core input debug: Buffering 60%
  
  avcodec encoder debug: CPU flags: 0x0107d3db
  
  core input debug: Buffering 63%
  
  avcodec encoder debug: Time base for probing setted to 1/1000000
  
  core input debug: Buffering 70%
  
  avcodec encoder debug: Time base set to 1/1000000
  
  core input debug: Buffering 73%
  
  avcodec encoder debug: found encoder Raw video
  
  core input debug: Buffering 76%
  
  core encoder debug: using encoder module "avcodec"
  
  core input debug: Buffering 80%
  
  core encoder debug: removing module "avcodec"
  
  core input debug: Buffering 83%
  
  core input debug: Buffering 90%
  
  core input debug: Buffering 93%
  
  core input debug: Buffering 96%
  
  core input debug: Stream buffering done (1002 ms in 834 ms)
  
  core input debug: Decoder wait done in 0 ms
  
  avcodec generic debug: available hardware decoder output format 61 (dxva2_vld)
  
  avcodec generic debug: available hardware decoder output format 128 (d3d11va_vld)
  
  avcodec generic debug: available software decoder output format 12 (yuvj420p)
  
  core generic debug: looking for hw decoder module matching "any": 1 candidates
  
  core generic debug: no hw decoder modules matched
  
  avcodec generic warning: plane 0 not aligned
  
  avcodec generic warning: disabling direct rendering
  
  stream_out_transcode stream out debug: decoder aspect is 1.761468:1
  
  stream_out_transcode stream out debug: source pixel aspect is 0.990826:1
  
  stream_out_transcode stream out debug: scaled pixel aspect is 0.990826:1
  
  stream_out_transcode stream out debug: source 1920x1080, destination 1920x1080
  
  stream_out_transcode stream out debug: source fps 30/1, destination 30/1
  
  stream_out_transcode stream out: input interval 33333 (base 1)
  
  stream_out_transcode stream out: output interval 33333 (base 1)
  
  stream_out_transcode stream out debug: encoder aspect is 1920:1090
  
  core filter debug: looking for video filter2 module matching "any": 58 candidates
  
  swscale filter debug: 1920x1080 (1920x1090) chroma: J420 -> 1920x1080 (1920x1090) chroma: RV24 with scaling using Bicubic (good quality)
  
  core filter debug: using video filter2 module "swscale"
  
  core stream out debug: Filter 'Swscale' (0089a2cc) appended to chain
  
  stream_out_transcode stream out debug: destination (after video filters) 1920x1090
  
  core encoder debug: looking for encoder module matching "any": 20 candidates
  
  avcodec encoder debug: CPU flags: 0x0107d3db
  
  avcodec encoder debug: Time base for probing setted to 1/30
  
  avcodec encoder debug: Time base set to 1/30
  
  avcodec encoder debug: found encoder Raw video
  
  core encoder debug: using encoder module "avcodec"
  
  stream_out_transcode stream out warning: Reseting video sync
  
  stream_out_transcode stream out warning: Reseting video sync
  
  stream_out_transcode stream out warning: Reseting video sync
  
  stream_out_transcode stream out warning: Reseting video sync
  
  avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518755, last: 1518769)
  
  avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518756, last: 1518769)
  
  avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518757, last: 1518769)
  
  avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518758, last: 1518769)
  
  avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518759, last: 1518769)
  
  avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518760, last: 1518769)
  
  avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518761, last: 1518769)
  
  avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518762, last: 1518769)
  
  avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518763, last: 1518769)
  
  avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518764, last: 1518769)
  
  stream_out_transcode stream out warning: Reseting video sync
  
  stream_out_transcode stream out warning: Reseting video sync
  
  avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518784, last: 1518795)
  
  live555 demux debug: tk->rtpSource->hasBeenSynchronizedUsingRTCP()
  
  core input error: ES_OUT_RESET_PCR called
  
  avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518785, last: 1518795)
  
  core input debug: Buffering 0%
  
  core input debug: Buffering 3%
  
  core input debug: Buffering 6%
  
  core input debug: Buffering 10%
  
  core input debug: Buffering 13%
  
  core input debug: Buffering 20%
  
  core input debug: Buffering 23%
  
  core input debug: Buffering 26%
  
  core input debug: Buffering 30%
  
  core input debug: Buffering 33%
  
  core input debug: Buffering 40%
  
  core input debug: Buffering 43%
  
  core input debug: Buffering 46%
  
  core input debug: Buffering 50%
  
  core input debug: Buffering 53%
  
  core input debug: Buffering 60%
  
  core input debug: Buffering 63%
  
  core input debug: Buffering 66%
  
  core input debug: Buffering 70%
  
  core input debug: Buffering 73%
  
  core input debug: Buffering 80%
  
  core input debug: Buffering 83%
  
  core input debug: Buffering 86%
  
  core input debug: Buffering 90%
  
  core input debug: Buffering 93%
  
  core input debug: Stream buffering done (1002 ms in 817 ms)
  
  core input debug: Decoder wait done in 0 ms
  
  stream_out_transcode stream out warning: Reseting video sync
  
  stream_out_transcode stream out warning: Reseting video sync
  
  stream_out_transcode stream out warning: Reseting video sync
  
  stream_out_transcode stream out warning: Reseting video sync
  
  avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518834, last: 1518837)
  
  avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518835, last: 1518837)
  
  avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518836, last: 1518837)
  
  avcodec encoder warning: almost fed libavcodec with two frames with the same PTS (1518837)
  
  stream_out_transcode stream out warning: Reseting video sync
  
  stream_out_transcode stream out warning: Reseting video sync