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• Merge Two Videos side by side in C# Not working with large file

  7 juillet 2017, par Muhammad Zeeshan

  i am trying to merge two videos side by side using ffmpeg. it is working fine if the size of each video is less then 1 mb if it exceed from 1mb conversion process take infinite time. is there any way to make it fast or i need to change command line. here is snippet am trying

    ProcessStartInfo proce = new ProcessStartInfo("ffmpeg.exe");
  
          proce.WorkingDirectory = @"d:\vid";
  
          Process p = Process.Start(proce);
  
          string wavefilep = @"D:\vid\camVid1.avi";
  
          string videop = @"D:\vid\DeskCamVid1.avi";
  
          string fileout = @"D:\vid\OutPut123.avi";
  
          System.Diagnostics.Process proc = new System.Diagnostics.Process();
  
          try
  
          {
  
  
  
              proc.StartInfo.Arguments = string.Format(" -i {0} -i {1} -filter_complex \"[0:v:0]pad=iw*4:iw[bg]; [bg][1:v:0] overlay=h\" {2}",wavefilep,videop,fileout);
  
  
  
              proc.StartInfo.UseShellExecute = false;
  
              proc.StartInfo.CreateNoWindow = false;
  
              proc.StartInfo.RedirectStandardOutput = true;
  
              proc.StartInfo.RedirectStandardError = true;
  
              proc.StartInfo.FileName = @"d:\vid\ffmpeg.exe";
  
              proc.Start();
  
              string StdOutVideo = proc.StandardOutput.ReadToEnd();
  
              string StdErrVideo = proc.StandardError.ReadToEnd();
  
              MessageBox.Show(" video done");

  here is the command am using with to merge videos

  -i vidoe1.avi -i video2.avi -filter_complex "[0:v:0]pad=iw*2:ih[bg]; [bg][1:v:0]overlay=3*w" output.avi

  here is the output log of ffmpeg every time i run application it stuck at this frame

  ffmpeg version N-86482-gbc40674 Copyright (c) 2000-2017 the FFmpeg developers
  
    built with gcc 7.1.0 (GCC)
  
    configuration: --enable-gpl --enable-version3 --enable-cuda --enable-cuvid --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --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-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --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-zlib
  
    libavutil      55. 66.100 / 55. 66.100
  
    libavcodec     57. 99.100 / 57. 99.100
  
    libavformat    57. 73.100 / 57. 73.100
  
    libavdevice    57.  7.100 / 57.  7.100
  
    libavfilter     6. 92.100 /  6. 92.100
  
    libswscale      4.  7.101 /  4.  7.101
  
    libswresample   2.  8.100 /  2.  8.100
  
    libpostproc    54.  6.100 / 54.  6.100
  
  Input #0, avi, from 'd:\vid\camVid1.avi':
  
    Metadata:
  
      encoder         : Lavf57.56.100
  
    Duration: 00:01:49.64, start: 0.000000, bitrate: 347 kb/s
  
      Stream #0:0: Video: mpeg4 (Simple Profile) (FMP4 / 0x34504D46), yuv420p, 640x480 [SAR 1:1 DAR 4:3], 342 kb/s, 25 fps, 25 tbr, 25 tbn, 25 tbc
  
  Input #1, avi, from 'd:\vid\DeskCamVid1.avi':
  
    Metadata:
  
      encoder         : Lavf57.56.100
  
    Duration: 00:01:48.80, start: 0.000000, bitrate: 427 kb/s
  
      Stream #1:0: Video: mpeg4 (Simple Profile) (FMP4 / 0x34504D46), yuv420p, 1366x768 [SAR 1:1 DAR 683:384], 422 kb/s, 25 fps, 25 tbr, 25 tbn, 25 tbc
  
  File 'd:\vid\outap.avi' already exists. Overwrite ? [y/N] Stream mapping:
  
    Stream #0:0 (mpeg4) -> pad
  
    Stream #1:0 (mpeg4) -> overlay:overlay
  
    overlay -> Stream #0:0 (mpeg4)
  
  Press [q] to stop, [?] for help
  
  Output #0, avi, to 'd:\vid\outap.avi':
  
    Metadata:
  
      ISFT            : Lavf57.73.100
  
      Stream #0:0: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 2560x640 [SAR 1:1 DAR 4:1], q=2-31, 200 kb/s, 25 fps, 25 tbn, 25 tbc (default)
  
      Metadata:
  
        encoder         : Lavc57.99.100 mpeg4
  
      Side data:
  
        cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
  
  frame=   28 fps=0.0 q=31.0 size=     325kB time=00:00:03.60 bitrate= 740.3kbits/s speed=7.12x    
  
  frame=   59 fps= 59 q=31.0 size=     416kB time=00:00:07.72 bitrate= 441.8kbits/s speed=7.67x    
  
  frame=   90 fps= 60 q=31.0 size=     536kB time=00:00:11.84 bitrate= 370.8kbits/s speed=7.85x    
  
  frame=  121 fps= 60 q=24.8 size=     661kB time=00:00:15.96 bitrate= 339.5kbits/s speed= 7.9x    
  
  frame=  152 fps= 60 q=31.0 size=     762kB time=00:00:20.08 bitrate= 310.9kbits/s speed=7.96x    
  
  frame=  183 fps= 61 q=31.0 size=     883kB time=00:00:24.20 bitrate= 299.0kbits/s speed=   8x    
  
  frame=  215 fps= 61 q=31.0 size=     974kB time=00:00:28.44 bitrate= 280.6kbits/s speed=8.05x    
  
  frame=  246 fps= 61 q=31.0 size=    1100kB time=00:00:32.56 bitrate= 276.8kbits/s speed=8.05x    
  
  frame=  278 fps= 61 q=31.0 size=    1234kB time=00:00:36.80 bitrate= 274.6kbits/s speed=8.08x    
  
  frame=  310 fps= 61 q=31.0 size=    1327kB time=00:00:41.08 bitrate= 264.6kbits/s speed=8.13x    
  
  frame=  340 fps= 61 q=31.0 size=    1439kB time=00:00:45.04 bitrate= 261.7kbits/s speed=8.11x    
  
  frame=  371 fps= 61 q=31.0 size=    1525kB time=00:00:49.16 bitrate= 254.1kbits/s speed=8.11x    
  
  frame=  403 fps= 61 q=31.0 size=    1639kB time=00:00:53.44 bitrate= 251.2kbits/s speed=8.13x    
  
  frame=  434 fps= 61 q=31.0 size=    1753kB time=00:00:57.56 bitrate= 249.5kbits/s speed=8.14x    
  
  frame=  466 fps= 61 q=31.0 size=    1845kB time=00:01:01.80 bitrate= 244.6kbits/s speed=8.16x    
  
  frame=  497 fps= 61 q=31.0 size=    1958kB time=00:01:05.92 bitrate= 243.3kbits/s speed=8.15x  

• build : Allow generating dependencies as a side-effect of assembling

  13 octobre 2016, par Diego Biurrun

  build : Allow generating dependencies as a side-effect of assembling
  (Cherry-picked from libav commit 3c0efbd03349ae68d3a25a082222652a102e3fd4)
  Signed-off-by : James Almer <jamrial@gmail.com>
  

  • [DH] configure
  • [DH] ffbuild/common.mak

• avcodec/decode : Update decode_simple_internal() to get the side data correctly.

  14 juin 2017, par John Rummell

  avcodec/decode : Update decode_simple_internal() to get the side data correctly.
  Use avci->last_pkt_props to get the side data. Using |pkt| doesn't work
  
  when FF_API_MERGE_SD is set, as the compressed side data is expanded into
  
  |tmp|, leaving the original |pkt| unchanged.
  Signed-off-by : James Almer <jamrial@gmail.com>
  

  • [DH] libavcodec/decode.c