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• Getting error while streaming with ffmpeg

  30 novembre 2019, par Tirtha

  I am trying to stream with ffmpeg. Video source is vmix. While streaming ffmpeg throws i/o error and stops.
  Available Devices :

  [dshow @ 0000028c44498ec0] DirectShow video devices (some may be both video and audio devices)
  
  [dshow @ 0000028c44498ec0]  "e2eSoft VCam"
  
  [dshow @ 0000028c44498ec0]     Alternative name "@device_pnp_\\?\root#image#0000#{65e8773d-8f56-11d0-a3b9-00a0c9223196}\global"
  
  [dshow @ 0000028c44498ec0]  "HP Truevision HD"
  
  [dshow @ 0000028c44498ec0]     Alternative name "@device_pnp_\\?\usb#vid_04f2&pid_b50d&mi_00#6&2557162&1&0000#{65e8773d-8f56-11d0-a3b9-00a0c9223196}\global"
  
  [dshow @ 0000028c44498ec0]  "vMix Video"
  
  [dshow @ 0000028c44498ec0]     Alternative name "@device_sw_{860BB310-5D01-11D0-BD3B-00A0C911CE86}\{8E14549A-DB61-4309-AFA1-3578E927E938}"
  
  [dshow @ 0000028c44498ec0]  "vMix Video External 2"
  
  [dshow @ 0000028c44498ec0]     Alternative name "@device_sw_{860BB310-5D01-11D0-BD3B-00A0C911CE86}\{8E14549A-DB61-4309-AFA1-3578E927F974}"
  
  [dshow @ 0000028c44498ec0]  "vMix Video YV12"
  
  [dshow @ 0000028c44498ec0]     Alternative name "@device_sw_{860BB310-5D01-11D0-BD3B-00A0C911CE86}\{8E14549A-DB61-4309-AFA1-3578E927FF92}"
  
  [dshow @ 0000028c44498ec0] DirectShow audio devices
  
  [dshow @ 0000028c44498ec0]  "Microphone (Realtek High Definition Audio)"
  
  [dshow @ 0000028c44498ec0]     Alternative name "@device_cm_{33D9A762-90C8-11D0-BD43-00A0C911CE86}\wave_{3522D665-FB21-41E0-AF83-CC3432431D30}"
  
  [dshow @ 0000028c44498ec0]  "vMix Audio"
  
  [dshow @ 0000028c44498ec0]     Alternative name "@device_sw_{33D9A762-90C8-11D0-BD43-00A0C911CE86}\{008E145B-DB61-4309-AEA1-3578E927E940}"
  
  [dshow @ 0000028c44498ec0]  "vMix Audio - Bus A"
  
  [dshow @ 0000028c44498ec0]     Alternative name "@device_sw_{33D9A762-90C8-11D0-BD43-00A0C911CE86}\{008E145B-DB61-4309-AEA1-3578E927E944}"
  
  [dshow @ 0000028c44498ec0]  "vMix Audio - Bus B"
  
  [dshow @ 0000028c44498ec0]     Alternative name "@device_sw_{33D9A762-90C8-11D0-BD43-00A0C911CE86}\{008E145B-DB61-4309-AEA1-3578E927E948}"
  
  [dshow @ 0000028c44498ec0]  "vMix Audio - M A B"
  
  [dshow @ 0000028c44498ec0]     Alternative name "@device_sw_{33D9A762-90C8-11D0-BD43-00A0C911CE86}\{008E145B-DB61-4309-AEA1-3578E927E952}"
  
  [dshow @ 0000028c44498ec0]  "vMix Audio - M A"
  
  [dshow @ 0000028c44498ec0]     Alternative name "@device_sw_{33D9A762-90C8-11D0-BD43-00A0C911CE86}\{008E145B-DB61-4309-AEA1-3578E927E956}"
  
  [dshow @ 0000028c44498ec0]  "CABLE Output (VB-Audio Virtual Cable)"
  
  [dshow @ 0000028c44498ec0]     Alternative name "@device_cm_{33D9A762-90C8-11D0-BD43-00A0C911CE86}\wave_{D27F382E-4EA5-49D0-8F87-2B5F144BC155}"

  I tried to stream using the command as :

  ffmpeg -re -rtbufsize 1024M -framerate 25 -f dshow -video_size 1280x720 -channels 2 -i video="vMix Video":audio="vMix Audio" -c:v libx264 -pix_fmt yuv420p -g 50 -crf 20 -profile:v high -preset:v veryfast -tune film -c:a libfaac -b:a 256k -f mp4 "D:\recordedfile.mp4"

  Getting error as :

  [dshow @ 0000028144d4c7c0] Could not set video options
  
  video=vMix Video:audio=vMix Audio: I/O error

  Video interface works fine if i use other tools like gstreamer but its not working with ffmpeg. Please suggest where I am wrong or what I am missing ? I am using windows OS. Thank you for reading.

• ffmpeg crashes on crossfades between 3 clips if 2 clips coming from same input file [closed]

  14 avril 2020, par Erik

  I observed that ffmpeg 4.2.2 (macOS) crashes in particular cases of crossfades between clips, if one clip comes from file 1.dv, and two clips are cut out of file 2.dv, as shown below :

  



  ffmpeg -f lavfi -i color=black:size=720x576:duration=11:rate=25 -i 1.dv -i 2.dv -filter_complex "\
    [1:v]trim=5:10,setpts=expr=PTS-STARTPTS,yadif,fade=alpha=1:d=2:st=3:type=out,setpts=expr=PTS-STARTPTS,fifo[s5];\
    [2:v]split=2[s7][s8];\
    [s7]trim=5:10,setpts=expr=PTS-STARTPTS,yadif,fade=alpha=1:d=2:type=in,fade=alpha=1:d=2:st=6:type=out,setpts=expr=PTS-STARTPTS+(3/TB),fifo[s15];\
    [s8]trim=12:17,setpts=expr=PTS-STARTPTS,yadif,fade=alpha=1:d=2:type=in,setpts=expr=PTS-STARTPTS+(6/TB),fifo[s22];\
    [0:v][s5]overlay=eof_action=repeat[s6];\
    [s6][s15]overlay=eof_action=repeat[s16];\
    [s16][s22]overlay=eof_action=repeat[s24];\
    [1:a]atrim=5:10,asetpts=expr=PTS-STARTPTS[s26];\
    [2:a]asplit=2[s27][s28];\
    [s27]atrim=5:10,asetpts=expr=PTS-STARTPTS[s30];\
    [s28]atrim=12:17,asetpts=expr=PTS-STARTPTS[s33];\
    [s26][s30]acrossfade=d=2[s31];\
    [s31][s33]acrossfade=d=2[s36]" \
     -map "[s24]" -map "[s36]" -ab 128k -acodec aac -crf 23 -movflags faststart -preset medium -tune film -vcodec libx264 -aspect 1024:576 out.mp4 -y


  



  The order makes a difference : if the two clips from 2.dv are used first and then the clip from 1.dv is appended, everything works fine. Also, if all clips are coming from different files.

  



  ffmpeg 3.4.6 (ubuntu 18.04) shows no issues in any case.

  



  A self-compiled ffmpeg version N-97322-gb1699f4 (commit 2020-04-13) works with short clips as above, but crashes if one of the two clips taken from 2.dv is getting longer. In my tests 1500 frames (64 sec) is OK, 1700 (68 sec) leads to a segmentation fault. That is, if you replace in the command line above :

  



  

  • [s7]trim=5:10... -> [s7]trim=0:68 and accordingly

  


  • [s27]atrim=5:10... -> [s27]atrim=0:68

  


  



  Interestingly, the length of the clip taken from 1.dv does not play a role.

  



  The ffmpeg output shows about 20 times :

  



  frame=    0 fps=0.0 q=0.0 size=       0kB time=00:00:00.00 bitrate=N/A speed=   0x  


  



  before it continues (seg fault case) :

  



  frame=    4 fps=0.3 q=0.0 size=       0kB time=00:00:00.00 bitrate=N/A speed=   0x    
frame=   24 fps=1.6 q=0.0 size=       0kB time=00:00:00.00 bitrate=N/A speed=   0x    
frame=   25 fps=1.5 q=0.0 size=       0kB time=00:00:00.00 bitrate=N/A speed=   0x    
frame=   34 fps=1.9 q=0.0 size=       0kB time=00:00:00.00 bitrate=N/A speed=   0x    
frame=   36 fps=2.0 q=0.0 size=       0kB time=00:00:00.00 bitrate=N/A speed=   0x    
frame=   39 fps=2.1 q=0.0 size=       0kB time=00:00:00.00 bitrate=N/A speed=   0x    
frame=   40 fps=2.0 q=0.0 size=       0kB time=00:00:00.00 bitrate=N/A speed=   0x    
frame=   40 fps=2.0 q=0.0 size=       0kB time=00:00:00.00 bitrate=N/A speed=   0x    
frame=   40 fps=1.9 q=0.0 size=       0kB time=00:00:00.00 bitrate=N/A speed=   0x    



  



  success case :

  



  frame=    5 fps=0.4 q=0.0 size=       0kB time=00:00:00.00 bitrate=N/A speed=   0x    
frame=   42 fps=3.2 q=28.0 size=       0kB time=00:00:00.00 bitrate=N/A speed=   0x    
frame=   53 fps=3.9 q=28.0 size=       0kB time=00:00:00.36 bitrate=   2.9kbits/s speed=0.0264x    
frame=   65 fps=4.6 q=28.0 size=       0kB time=00:00:00.84 bitrate=   1.2kbits/s speed=0.0594x 
...   


  



  Slightly older versions included in the newest MacOS builds from zeranoe.com (git-2020-04-13-59e3a9a) and evermeet.cx (N-97308-g14dd0a9057-tessus, from 2020-04-12) are working nicely - also on my production cases (longer clips).

  



  Any feedback would be appreciated !

  


• FFMPEG process Killed and raises returncode 137 when executed through python3 subprocess.Popen but runs fine from the command line

  22 novembre 2017, par Stuart Clarke

  I’m not sure if this is the best way to go about this, but I have another question here which I don’t think was asked very well (or more to the point I realised the actual problem and have a simpler way of asking for help). If you can answer this question you’ll have the answer to the other.

  I’m using python 3.5.2 and ffmpeg 3.3.4-2 and have this function to run my ffmpeg commands :

  def ffmpegPro(args):
  
      err = None
  
      for i, arg in enumerate(args):
  
          if(" " in arg or "(" in arg or "[" in arg):
  
              args[i] = "\"" + arg + "\""
  
      command = [
  
          ffmpegcmd, '-y',
  
          '-loglevel', loglevel
  
      ] + args
  
      commandStr = " ".join(command)
  
      ffmpeg = subprocess.Popen(commandStr, stdin=subprocess.PIPE, stderr=subprocess.PIPE, stdout=subprocess.PIPE, universal_newlines=True, shell=True)
  
      out, err = ffmpeg.communicate()
  
      if ffmpeg.returncode != 0:
  
          print(commandStr + "\n" + "ERROR CODE: " + str(ffmpeg.returncode))
  
          raise Exception(err)

  When I pass the following args the returncode is 137 and the process is Killed. This only occurs when executed in python, when I run the same command at the command line it executes as expected.

  ['-i', '/var/www/temp/film.mp4', '-vf', 'scale=1920:1080:force_original_aspect_ratio=decrease,pad=1920:1080:x=(1920-iw)/2:y=(1080-ih)/2:color=black', '/var/www/temp/videoHD.mp4']

  The resulting command is :

  ffmpeg -y -loglevel verbose -i /var/www/temp/film.mp4 -vf "scale=1920:1080:force_original_aspect_ratio=decrease,pad=1920:1080:x=(1920-iw)/2:y=(1080-ih)/2:color=black" /var/www/temp/videoHD.mp4

  When executed through python :

  ERROR CODE: 137
  
  Traceback (most recent call last):
  
    File "getInsta2.py", line 740, in <module>
  
      populate(media_feed, last, saved)
  
    File "getInsta2.py", line 679, in populate
  
      videoPost(media, hasVids, thisSaved)
  
    File "getInsta2.py", line 639, in videoPost
  
      processVideo(film, final, noMusic, audios, lengths)
  
    File "getInsta2.py", line 358, in processVideo
  
      ffmpegPro(args)
  
    File "getInsta2.py", line 170, in ffmpegPro
  
      raise Exception(err)
  
  Exception: ffmpeg version 3.3.4-2~16.04.york0 Copyright (c) 2000-2017 the FFmpeg developers
  
    built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.4) 20160609
  
    configuration: --prefix=/usr --extra-version='2~16.04.york0' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
  
    libavutil      55. 58.100 / 55. 58.100
  
    libavcodec     57. 89.100 / 57. 89.100
  
    libavformat    57. 71.100 / 57. 71.100
  
    libavdevice    57.  6.100 / 57.  6.100
  
    libavfilter     6. 82.100 /  6. 82.100
  
    libavresample   3.  5.  0 /  3.  5.  0
  
    libswscale      4.  6.100 /  4.  6.100
  
    libswresample   2.  7.100 /  2.  7.100
  
    libpostproc    54.  5.100 / 54.  5.100
  
  [h264 @ 0x7fa3db55a560] Reinit context to 640x368, pix_fmt: yuv420p
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/var/www/temp/film.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf57.71.100
  
    Duration: 00:06:19.80, start: 0.000000, bitrate: 451 kb/s
  
      Stream #0:0(und): Video: h264 (High), 1 reference frame (avc1 / 0x31637661), yuv420p(left), 640x358 (640x368), 313 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
      Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
  
      Metadata:
  
        handler_name    : SoundHandler
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  
    Stream #0:1 -> #0:1 (aac (native) -> aac (native))
  
  Press [q] to stop, [?] for help
  
  [h264 @ 0x7fa3db59c700] Reinit context to 640x368, pix_fmt: yuv420p
  
  [graph_1_in_0_1 @ 0x7fa3db7115e0] tb:1/48000 samplefmt:fltp samplerate:48000 chlayout:0x3
  
  [Parsed_scale_0 @ 0x7fa3db72e000] w:1920 h:1080 flags:'bicubic' interl:0
  
  [graph 0 input from stream 0:0 @ 0x7fa3db72f6a0] w:640 h:358 pixfmt:yuv420p tb:1/15360 fr:30/1 sar:0/1 sws_param:flags=2
  
  [Parsed_scale_0 @ 0x7fa3db72e000] w:640 h:358 fmt:yuv420p sar:0/1 -> w:1920 h:1074 fmt:yuv420p sar:0/1 flags:0x4
  
  [Parsed_pad_1 @ 0x7fa3db72eac0] w:1920 h:1074 -> w:1920 h:1080 x:0 y:2 color:0x000000FF
  
  [libx264 @ 0x7fa3db7309e0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
  
  [libx264 @ 0x7fa3db7309e0] profile High, level 4.0
  
  [libx264 @ 0x7fa3db7309e0] 264 - core 148 r2795 aaa9aa8 - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
  
  Output #0, mp4, to '/var/www/temp/videoHD.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf57.71.100
  
      Stream #0:0(und): Video: h264 (libx264), 1 reference frame ([33][0][0][0] / 0x0021), yuv420p(left), 1920x1080, q=-1--1, 30 fps, 15360 tbn, 30 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
        encoder         : Lavc57.89.100 libx264
  
      Side data:
  
        cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
  
      Stream #0:1(und): Audio: aac (LC) ([64][0][0][0] / 0x0040), 48000 Hz, stereo, fltp, delay 1024, 128 kb/s (default)
  
      Metadata:
  
        handler_name    : SoundHandler
  
        encoder         : Lavc57.89.100 aac
  
  Killed
  
  </module>

  Note the Killed at the end. This occurs just before any processing begins.

  BUT when run from the command line (cutting and pasting the command as outputted by the code) we get :

  ffmpeg version 3.3.4-2~16.04.york0 Copyright (c) 2000-2017 the FFmpeg developers
  
    built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.4) 20160609
  
    configuration: --prefix=/usr --extra-version='2~16.04.york0' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
  
    libavutil      55. 58.100 / 55. 58.100
  
    libavcodec     57. 89.100 / 57. 89.100
  
    libavformat    57. 71.100 / 57. 71.100
  
    libavdevice    57.  6.100 / 57.  6.100
  
    libavfilter     6. 82.100 /  6. 82.100
  
    libavresample   3.  5.  0 /  3.  5.  0
  
    libswscale      4.  6.100 /  4.  6.100
  
    libswresample   2.  7.100 /  2.  7.100
  
    libpostproc    54.  5.100 / 54.  5.100
  
  [h264 @ 0x7f68c918f560] Reinit context to 640x368, pix_fmt: yuv420p
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/var/www/temp/film.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf57.71.100
  
    Duration: 00:06:19.80, start: 0.000000, bitrate: 451 kb/s
  
      Stream #0:0(und): Video: h264 (High), 1 reference frame (avc1 / 0x31637661), yuv420p(left), 640x358 (640x368), 313 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
      Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
  
      Metadata:
  
        handler_name    : SoundHandler
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  
    Stream #0:1 -> #0:1 (aac (native) -> aac (native))
  
  Press [q] to stop, [?] for help
  
  [h264 @ 0x7f68c91d1700] Reinit context to 640x368, pix_fmt: yuv420p
  
  [graph_1_in_0_1 @ 0x7f68c93465e0] tb:1/48000 samplefmt:fltp samplerate:48000 chlayout:0x3
  
  [Parsed_scale_0 @ 0x7f68c9363000] w:1920 h:1080 flags:'bicubic' interl:0
  
  [graph 0 input from stream 0:0 @ 0x7f68c93646a0] w:640 h:358 pixfmt:yuv420p tb:1/15360 fr:30/1 sar:0/1 sws_param:flags=2
  
  [Parsed_scale_0 @ 0x7f68c9363000] w:640 h:358 fmt:yuv420p sar:0/1 -> w:1920 h:1074 fmt:yuv420p sar:0/1 flags:0x4
  
  [Parsed_pad_1 @ 0x7f68c9363ac0] w:1920 h:1074 -> w:1920 h:1080 x:0 y:2 color:0x000000FF
  
  [libx264 @ 0x7f68c93659e0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
  
  [libx264 @ 0x7f68c93659e0] profile High, level 4.0
  
  [libx264 @ 0x7f68c93659e0] 264 - core 148 r2795 aaa9aa8 - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
  
  Output #0, mp4, to '/var/www/temp/videoHD.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf57.71.100
  
      Stream #0:0(und): Video: h264 (libx264), 1 reference frame ([33][0][0][0] / 0x0021), yuv420p(left), 1920x1080, q=-1--1, 30 fps, 15360 tbn, 30 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
        encoder         : Lavc57.89.100 libx264
  
      Side data:
  
        cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
  
      Stream #0:1(und): Audio: aac (LC) ([64][0][0][0] / 0x0040), 48000 Hz, stereo, fltp, delay 1024, 128 kb/s (default)
  
      Metadata:
  
        handler_name    : SoundHandler
  
        encoder         : Lavc57.89.100 aac
  
  frame=   46 fps=0.0 q=0.0 size=       0kB time=00:00:01.62 bitrate=   0.0kbits/s
  
  frame=   59 fps= 46 q=29.0 size=     116kB time=00:00:02.04 bitrate= 464.8kbits/
  
  frame=   72 fps= 40 q=29.0 size=     203kB time=00:00:02.49 bitrate= 667.2kbits/
  
  frame=   84 fps= 36 q=29.0 size=     308kB time=00:00:02.88 bitrate= 875.9kbits/
  
      Blah
  
      Blah
  
      Blah
  
  frame=11351 fps= 21 q=26.0 size=   97572kB time=00:06:18.45 bitrate=2112.1kbits/
  
  frame=11367 fps= 21 q=29.0 size=   97732kB time=00:06:18.98 bitrate=2112.5kbits/
  
  frame=11384 fps= 22 q=29.0 size=   97809kB time=00:06:19.56 bitrate=2111.0kbits/
  
  No more output streams to write to, finishing.
  
  frame=11392 fps= 21 q=-1.0 Lsize=   98519kB time=00:06:19.77 bitrate=2125.1kbits/s speed=0.715x    
  
  video:92124kB audio:5986kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.416313%
  
  Input file #0 (/var/www/temp/film.mp4):
  
    Input stream #0:0 (video): 11392 packets read (14892948 bytes); 11392 frames decoded; 
  
    Input stream #0:1 (audio): 17803 packets read (6112540 bytes); 17802 frames decoded (18229248 samples); 
  
    Total: 29195 packets (21005488 bytes) demuxed
  
  Output file #0 (/var/www/temp/videoHD.mp4):
  
    Output stream #0:0 (video): 11392 frames encoded; 11392 packets muxed (94334785 bytes); 
  
    Output stream #0:1 (audio): 17802 frames encoded (18229248 samples); 17803 packets muxed (6129981 bytes); 
  
    Total: 29195 packets (100464766 bytes) muxed
  
  [libx264 @ 0x7f68c93659e0] frame I:74    Avg QP:19.08  size: 51540
  
  [libx264 @ 0x7f68c93659e0] frame P:3506  Avg QP:21.34  size: 19348
  
  [libx264 @ 0x7f68c93659e0] frame B:7812  Avg QP:24.07  size:  2904
  
  [libx264 @ 0x7f68c93659e0] consecutive B-frames:  1.3% 20.2%  4.6% 73.9%
  
  [libx264 @ 0x7f68c93659e0] mb I  I16..4: 19.7% 73.6%  6.7%
  
  [libx264 @ 0x7f68c93659e0] mb P  I16..4:  3.2%  6.4%  0.1%  P16..4: 52.5%  7.6%  2.6%  0.0%  0.0%    skip:27.6%
  
  [libx264 @ 0x7f68c93659e0] mb B  I16..4:  0.2%  0.2%  0.0%  B16..8: 23.2%  0.4%  0.0%  direct: 0.5%  skip:75.5%  L0:51.8% L1:46.6% BI: 1.6%
  
  [libx264 @ 0x7f68c93659e0] 8x8 transform intra:66.4% inter:94.0%
  
  [libx264 @ 0x7f68c93659e0] coded y,uvDC,uvAC intra: 33.6% 53.4% 7.3% inter: 5.3% 14.2% 0.0%
  
  [libx264 @ 0x7f68c93659e0] i16 v,h,dc,p: 22% 27%  5% 46%
  
  [libx264 @ 0x7f68c93659e0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 29% 19% 20%  4%  7%  7%  7%  5%  4%
  
  [libx264 @ 0x7f68c93659e0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 31% 28% 11%  3%  9%  7%  6%  3%  2%
  
  [libx264 @ 0x7f68c93659e0] i8c dc,h,v,p: 49% 21% 20% 10%
  
  [libx264 @ 0x7f68c93659e0] Weighted P-Frames: Y:0.5% UV:0.1%
  
  [libx264 @ 0x7f68c93659e0] ref P L0: 63.4%  8.9% 21.4%  6.3%  0.0%
  
  [libx264 @ 0x7f68c93659e0] ref B L0: 89.3%  9.1%  1.6%
  
  [libx264 @ 0x7f68c93659e0] ref B L1: 98.1%  1.9%
  
  [libx264 @ 0x7f68c93659e0] kb/s:1987.38
  
  [aac @ 0x7f68c9366e80] Qavg: 1160.814

  and the output video is fine.

  Why would this process be killed by python ?

  Thanks,

  Stu