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  • h264_mp4toannexb filter failed to receive output packet while ffmpeg concat

    10 août 2022, par AlexZheda

    I am writing a very easy concat script for a list of videos.

    



    (for %i in (*.mp4) do @echo file '%i') > mylist.txt

    



    ffmpeg -safe 0 -f concat -i mylist.txt -c copy merged.mp4

    



    Yet the log says something weird h264_mp4toannexb filter failed to receive output packet”
Those files are rendered in VLC, but at certain timestamps they start to disallow moving the playtime cursor. I suspect that might be the case but I do not see much from the failed files.

    



    The file(s) it fails on has the following description (ffmpeg -i fn.mp4)
enter image description here

    



    EDIT : Truncated stats from all of the files in order.

    



    [{'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 2715 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1664 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1438 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1473 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1479 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1502 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1514 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1581 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1600 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1814 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1136 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1747 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1872 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1538 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 2839 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1595 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1733 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1623 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1634 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1564 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1635 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1674 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1809 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1650 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1773 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1643 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1802 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1766 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1809 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1641 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1812 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1984 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1787 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1912 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1839 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1903 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1826 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1900 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1773 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1799 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1933 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 2023 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1971 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 2071 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1997 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1692 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1785 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1864 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 2007 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1897 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1726 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1799 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1683 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1735 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1751 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 2003 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1208 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1497 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1591 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1662 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1747 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1634 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1891 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1734 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1998 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1997 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1752 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1695 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 2002 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1934 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1799 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1966 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1972 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1968 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 2144 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 2049:2048 DAR 683:384], 1937 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)'},
 {'Stream #0:0': '    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 1674 kb/s, 29.99 fps, 30 tbr, 15360 tbn, 60 tbc (default)',
  'Stream #0:1': '    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 127 kb/s (default)'}]


    


  • Source of random Fatal signal 11 (SIGSEGV) error in app using ffmpeg through ndk

    20 janvier 2015, par grzebyk

    I am getting a nasty but well known error while working with FFmpeg and NDK :

    A/libc(9845): Fatal signal 11 (SIGSEGV), code 1, fault addr 0xa0a9f000 in tid 9921 (AsyncTask #4)

    What am I doing ?

    I am developing an application that streams live video feed from a webcam and enables user to pan and tilt the remote camera. I am using FFmpeg library built with NDK to achieve smooth playback with little delay.

    I am using FFMpeg library to connect to the video stream. Then the ndk part creates bitmap, does the image processing and render frames on the SurfaceView videoSurfaceView object which is located in the android activity (java part).

    To move the webcam I created a separate class - public class CameraMover implements Runnable{/**/}. This class is a separate thread that connects through sockets with the remote camera and manages tasks connected ONLY with pan-tilt movement.

    Next in the main activity i created a touch listener

    videoSurfaceView.setOnTouchListener(new View.OnTouchListener() {/**/
    
cameraMover.setPanTilt(some parameters);
    
/**/}

    which reads user’s finger movement and sends commands to the camera.

    All tasks - moving camera around, touch interface and video playback are working perfectly when the one of the others is disabled, i.e. when I disable possibility to move camera, I can watch video streaming and register touch events till the end of time (or battery at least). The problem occurs only when task are configured to work simultaneously.

    I am unable to find steps to reproduce the problem. It just happens, but only after user touches the screen to move camera. It can be 15 seconds after first interaction, but sometimes it takes app 10 or more minutes to crash. Usually it is something around a minute.

    What have I done to fix it ?

    • I tried to display millions of logs in logcat to find an error but
      the last log was always different.
    • I created a transparent surface, that I put over the videoSurfaceView and assigned touch listener to it. It all ended in the same error.
    • As I mentioned before, I turned off some functionalities to find which one produces the error, but it appears that error occurs only when everything is working simultaneously.

    Types of the error

    Almost every time the error looks like this :

    A/libc(11528): Fatal signal 11 (SIGSEGV), code 1, fault addr 0x9aa9f00c in tid 11637 (AsyncTask #4)

    the difference between two errors is the number right after libc, addr number and tid number. Rarely the AsyncTask number varies - i received #1 couple times but I was unable to reproduce it.

    Question

    How can i avoid this error ? What can be the source of it ?

  • ffmpeg live stream latency

    22 août 2014, par Alex Fu

    I’m currently working on live streaming video from device A (source) to device B (destination) directly via local WiFi network.

    I’ve built FFMPEG to work on the Android platform and I have been able to stream video from A -> B successfully at the expense of latency (takes about 20 seconds for a movement or change to appear on screen ; as if the video was 20 seconds behind actual events).

    Initial start up is around 4 seconds. I’ve been able to trim that initial start up time down by lowering probesize and max_analyze_duration but the 20 second delay is still there.

    I’ve sprinkled some timing events around the code to try an figure out where the most time is being spent...

    • naInit : 0.24575 sec
    • naSetup : 0.043705 sec

    The first video frame isn’t obtained until 0.035342 sec after the decodeAndRender function is called. Subsequent decoding times can be illustrated here : enter image description here http://jsfiddle.net/uff0jdf7/1/ (interactive graph)

    From all the timing data i’ve recorded, nothing really jumps out at me unless I’m doing the timing wrong. Some have suggested that I am buffering too much data, however, as far as I can tell, I’m only buffering an image at a time. Is this too much ?

    Also, the source video that’s coming in is in the format of P264 ; it’s a custom implementation of H264 apparently.

    jint naSetup(JNIEnv *pEnv, jobject pObj, int pWidth, int pHeight) {
    
  width = pWidth;
    
  height = pHeight;
    

    
  //create a bitmap as the buffer for frameRGBA
    
  bitmap = createBitmap(pEnv, pWidth, pHeight);
    
  if (AndroidBitmap_lockPixels(pEnv, bitmap, &pixel_buffer) < 0) {
    
    LOGE("Could not lock bitmap pixels");
    
    return -1;
    
  }
    

    
  //get the scaling context
    
  sws_ctx = sws_getContext(codecCtx->width, codecCtx->height, codecCtx->pix_fmt,
    
      pWidth, pHeight, AV_PIX_FMT_RGBA, SWS_BILINEAR, NULL, NULL, NULL);
    

    
  // Assign appropriate parts of bitmap to image planes in pFrameRGBA
    
  // Note that pFrameRGBA is an AVFrame, but AVFrame is a superset
    
  // of AVPicture
    
  av_image_fill_arrays(frameRGBA->data, frameRGBA->linesize, pixel_buffer, AV_PIX_FMT_RGBA, pWidth, pHeight, 1);
    
  return 0;
    
}
    

    
void decodeAndRender(JNIEnv *pEnv) {
    
  ANativeWindow_Buffer windowBuffer;
    
  AVPacket packet;
    
  AVPacket outputPacket;
    
  int frame_count = 0;
    
  int got_frame;
    

    
  while (!stop && av_read_frame(formatCtx, &packet) >= 0) {
    
    // Is this a packet from the video stream?
    
    if (packet.stream_index == video_stream_index) {
    

    
      // Decode video frame
    
      avcodec_decode_video2(codecCtx, decodedFrame, &got_frame, &packet);
    

    
      // Did we get a video frame?
    
      if (got_frame) {
    
        // Convert the image from its native format to RGBA
    
        sws_scale(sws_ctx, (uint8_t const * const *) decodedFrame->data,
    
            decodedFrame->linesize, 0, codecCtx->height, frameRGBA->data,
    
            frameRGBA->linesize);
    

    
        // lock the window buffer
    
        if (ANativeWindow_lock(window, &windowBuffer, NULL) < 0) {
    
          LOGE("Cannot lock window");
    
        } else {
    
          // draw the frame on buffer
    
          int h;
    
          for (h = 0; h < height; h++) {
    
            memcpy(windowBuffer.bits + h * windowBuffer.stride * 4,
    
                   pixel_buffer + h * frameRGBA->linesize[0],
    
                   width * 4);
    
          }
    
          // unlock the window buffer and post it to display
    
          ANativeWindow_unlockAndPost(window);
    

    
          // count number of frames
    
          ++frame_count;
    
        }
    
      }
    
    }
    

    
    // Free the packet that was allocated by av_read_frame
    
    av_free_packet(&packet);
    
  }
    

    
  LOGI("Total # of frames decoded and rendered %d", frame_count);
    
}

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