[FFmpeg-trac] #2341(avformat:new): No audio in damaged dv stream

[FFmpeg]

#2341: No audio in damaged dv stream
--------------------------------------+----------------------------------
               Reporter:  cehoyos     |                  Owner:
                   Type:  defect      |                 Status:  new
               Priority:  normal      |              Component:  avformat
                Version:  git-master  |               Keywords:  dvvideo
             Blocked By:              |               Blocking:
Reproduced by developer:  0           |  Analyzed by developer:  0
--------------------------------------+----------------------------------
 http://thread.gmane.org/gmane.comp.video.ffmpeg.user/44228 related to
 ticket #2340
 FFmpeg does not detect audio in a dv stream if the initial frames are
 damaged.
 {{{
 $ ffmpeg -i error_no_audio_detected.dv
 ffmpeg version N-50601-g98c4268 Copyright (c) 2000-2013 the FFmpeg
 developers
   built on Mar  9 2013 15:29:33 with gcc 4.7 (SUSE Linux)
   configuration: --enable-gpl --disable-indev=jack
   libavutil      52. 19.100 / 52. 19.100
   libavcodec     54. 92.100 / 54. 92.100
   libavformat    54. 63.104 / 54. 63.104
   libavdevice    54.  3.103 / 54.  3.103
   libavfilter     3. 42.103 /  3. 42.103
   libswscale      2.  2.100 /  2.  2.100
   libswresample   0. 17.102 /  0. 17.102
   libpostproc    52.  2.100 / 52.  2.100
 [dv @ 0x1d60a20] Detected timecode is invalid
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=65
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=67
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=64
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=65
     Last message repeated 1 times
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=64
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=66
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=64
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=65
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=64
     Last message repeated 3 times
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=65
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=70
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=72
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=64
     Last message repeated 7 times
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=65
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=64
     Last message repeated 1 times
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=66
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=64
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=77
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=64
     Last message repeated 1 times
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=65
     Last message repeated 1 times
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=64
     Last message repeated 4 times
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=67
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=64
     Last message repeated 1 times
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=66
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=64
     Last message repeated 5 times
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=65
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=67
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=64
     Last message repeated 2 times
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=66
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=65
     Last message repeated 2 times
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=64
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=100
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=65
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=64
     Last message repeated 1 times
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=67
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=69
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=64
     Last message repeated 1 times
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=109
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=64
     Last message repeated 1 times
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=66
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=65
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=64
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=74
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=64
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=66
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=65
     Last message repeated 1 times
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=64
     Last message repeated 3 times
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=87
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=65
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=64
     Last message repeated 2 times
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=70
     Last message repeated 1 times
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=64
     Last message repeated 3 times
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=69
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=64
     Last message repeated 1 times
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=67
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=65
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=64
     Last message repeated 4 times
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=66
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=64
     Last message repeated 2 times
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=65
     Last message repeated 1 times
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=64
     Last message repeated 1 times
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=65
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=64
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=69
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=65
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=64
     Last message repeated 1 times
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=67
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=64
     Last message repeated 7 times
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=65
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=64
     Last message repeated 3 times
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=66
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=64
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=66
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=64
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=65
     Last message repeated 3 times
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=66
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=64
 [dvvideo @ 0x1d613c0] AC EOB marker is absent pos=65
 [dv @ 0x1d60a20] Estimating duration from bitrate, this may be inaccurate
 Input #0, dv, from 'error_no_audio_detected.dv':
   Duration: 00:00:04.97, start: 0.000000, bitrate: 28736 kb/s
     Stream #0:0: Video: dvvideo, yuv411p, 720x480, 28771 kb/s, SAR 8:9 DAR
 4:3, 29.97 tbr, 29.97 tbn, 29.97 tbc
 At least one output file must be specified
 }}}
 {{{
 $ ffmpeg -skip_initial_bytes 1100k -i error_no_audio_detected.dv
 ffmpeg version N-50601-g98c4268 Copyright (c) 2000-2013 the FFmpeg
 developers
   built on Mar  9 2013 15:29:33 with gcc 4.7 (SUSE Linux)
   configuration: --enable-gpl --disable-indev=jack
   libavutil      52. 19.100 / 52. 19.100
   libavcodec     54. 92.100 / 54. 92.100
   libavformat    54. 63.104 / 54. 63.104
   libavdevice    54.  3.103 / 54.  3.103
   libavfilter     3. 42.103 /  3. 42.103
   libswscale      2.  2.100 /  2.  2.100
   libswresample   0. 17.102 /  0. 17.102
   libpostproc    52.  2.100 / 52.  2.100
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=67
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=65
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=81
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=64
     Last message repeated 2 times
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=65
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=64
     Last message repeated 1 times
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=65
     Last message repeated 1 times
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=64
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=65
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=68
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=66
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=65
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=70
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=66
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=68
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=67
     Last message repeated 1 times
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=64
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=66
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=64
     Last message repeated 2 times
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=65
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=64
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=70
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=66
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=67
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=64
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=66
     Last message repeated 1 times
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=64
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=66
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=64
     Last message repeated 1 times
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=104
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=67
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=64
     Last message repeated 1 times
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=69
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=66
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=64
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=65
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=66
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=65
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=64
     Last message repeated 4 times
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=67
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=64
     Last message repeated 2 times
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=65
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=64
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=66
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=64
     Last message repeated 4 times
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=100
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=64
     Last message repeated 1 times
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=65
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=64
     Last message repeated 1 times
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=65
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=68
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=64
     Last message repeated 2 times
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=72
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=65
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=64
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=66
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=64
     Last message repeated 5 times
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=66
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=64
     Last message repeated 1 times
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=67
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=64
     Last message repeated 3 times
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=68
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=65
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=78
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=66
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=64
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=66
     Last message repeated 1 times
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=64
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=65
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=64
     Last message repeated 1 times
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=66
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=64
     Last message repeated 2 times
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=65
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=64
     Last message repeated 7 times
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=81
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=64
     Last message repeated 3 times
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=76
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=69
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=64
     Last message repeated 2 times
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=65
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=66
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=64
     Last message repeated 3 times
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=68
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=64
     Last message repeated 7 times
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=65
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=64
     Last message repeated 3 times
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=65
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=64
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=69
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=66
 [dvvideo @ 0x2ea59a0] AC EOB marker is absent pos=64
     Last message repeated 1 times
 [dv @ 0x2e9cbc0] Estimating duration from bitrate, this may be inaccurate
 Input #0, dv, from 'error_no_audio_detected.dv':
   Metadata:
     timecode        : 01:10:14:15
   Duration: 00:00:04.97, start: 0.000000, bitrate: 28736 kb/s
     Stream #0:0: Video: dvvideo, yuv411p, 720x480, 28771 kb/s, SAR 8:9 DAR
 4:3, 29.97 tbr, 29.97 tbn, 29.97 tbc
     Stream #0:1: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
 At least one output file must be specified
 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2341>
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