[FFmpeg-trac] #1796(undetermined:open): Unable to extract PCM audio track from AVI file
FFmpeg
trac at avcodec.org
Thu Dec 6 12:36:48 CET 2012
#1796: Unable to extract PCM audio track from AVI file
-------------------------------------+-------------------------------------
Reporter: tom_bogle | Owner:
Type: defect | Status: open
Priority: normal | Component:
Version: git-master | undetermined
Keywords: avi | Resolution:
Blocking: | Blocked By:
Analyzed by developer: 0 | Reproduced by developer: 1
-------------------------------------+-------------------------------------
Changes (by cehoyos):
* keywords: => avi
* status: new => open
* version: unspecified => git-master
* reproduced: 0 => 1
Comment:
(I originally failed to reproduce the problem, sorry.)
out2.wav is significantly longer than out.wav
{{{
$ ffmpeg -i TruncatedPCMAudio_smallsample.avi out.wav
ffmpeg version N-47510-g0f65d56 Copyright (c) 2000-2012 the FFmpeg
developers
built on Dec 6 2012 12:30:03 with gcc 4.7 (SUSE Linux)
configuration: --enable-gpl --disable-indev=jack
libavutil 52. 11.102 / 52. 11.102
libavcodec 54. 79.100 / 54. 79.100
libavformat 54. 46.100 / 54. 46.100
libavdevice 54. 3.102 / 54. 3.102
libavfilter 3. 24.100 / 3. 24.100
libswscale 2. 1.103 / 2. 1.103
libswresample 0. 17.102 / 0. 17.102
libpostproc 52. 2.100 / 52. 2.100
Input #0, avi, from 'TruncatedPCMAudio_smallsample.avi':
Duration: 00:03:52.47, start: 0.000000, bitrate: 88 kb/s
Stream #0:0: Video: dvvideo, yuv411p, 720x480 [SAR 8:9 DAR 4:3], 28771
kb/s, 29.97 tbr, 29.97 tbn, 29.97 tbc
Stream #0:1: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
Output #0, wav, to 'out.wav':
Metadata:
ISFT : Lavf54.46.100
Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz,
stereo, s16, 1536 kb/s
Stream mapping:
Stream #0:1 -> #0:0 (pcm_s16le -> pcm_s16le)
Press [q] to stop, [?] for help
size= 6kB time=00:00:00.03 bitrate=1555.2kbits/s
video:0kB audio:6kB subtitle:0 global headers:0kB muxing overhead
1.248439%
}}}
{{{
$ ffmpeg -i TruncatedPCMAudio_smallsample.avi -qscale 2 out.avi
ffmpeg version N-47510-g0f65d56 Copyright (c) 2000-2012 the FFmpeg
developers
built on Dec 6 2012 12:30:03 with gcc 4.7 (SUSE Linux)
configuration: --enable-gpl --disable-indev=jack
libavutil 52. 11.102 / 52. 11.102
libavcodec 54. 79.100 / 54. 79.100
libavformat 54. 46.100 / 54. 46.100
libavdevice 54. 3.102 / 54. 3.102
libavfilter 3. 24.100 / 3. 24.100
libswscale 2. 1.103 / 2. 1.103
libswresample 0. 17.102 / 0. 17.102
libpostproc 52. 2.100 / 52. 2.100
Input #0, avi, from 'TruncatedPCMAudio_smallsample.avi':
Duration: 00:03:52.47, start: 0.000000, bitrate: 88 kb/s
Stream #0:0: Video: dvvideo, yuv411p, 720x480 [SAR 8:9 DAR 4:3], 28771
kb/s, 29.97 tbr, 29.97 tbn, 29.97 tbc
Stream #0:1: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
Please use -q:a or -q:v, -qscale is ambiguous
Output #0, avi, to 'out.avi':
Metadata:
ISFT : Lavf54.46.100
Stream #0:0: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 720x480 [SAR
8:9 DAR 4:3], q=2-31, 200 kb/s, 29.97 tbn, 29.97 tbc
Stream #0:1: Audio: ac3 ([0] [0][0] / 0x2000), 48000 Hz, stereo, fltp,
192 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (dvvideo -> mpeg4)
Stream #0:1 -> #0:1 (pcm_s16le -> ac3)
Press [q] to stop, [?] for help
[dvvideo @ 0x337b540] [dvvideo @ 0x337b540] AC EOB marker is absent pos=64
[dvvideo @ 0x337b540] AC EOB marker is absent pos=65
[dvvideo @ 0x337b540] Last message repeated 2 times
[dvvideo @ 0x337b540] AC EOB marker is absent pos=66
AC EOB marker is absent pos=67
AC EOB marker is absent pos=64messsage repeated 1 times
[dvvideo @ 0x337b540] AC EOB marker is absent pos=67
Last message repeated 4 times
Last message repeated 4 times
[dvvideo @ 0x337b540] AC EOB marker is absent pos=87
[dvvideo @ 0x337b540] [dvvideo @ 0x337b540] AC EOB marker is absent pos=64
AC EOB marker is absent pos=66mes
[dvvideo @ 0x337b540] AC EOB marker is absent pos=77
[dvvideo @ 0x337b540] AC EOB marker is absent pos=64
[dvvideo @ 0x337b540] AC EOB marker is absent pos=64
AC EOB marker is absent pos=67
Last message repeated 1 times
[dvvideo @ 0x337b540] AC EOB marker is absent pos=65
[dvvideo @ 0x337b540] [dvvideo @ 0x337b540] AC EOB marker is absent pos=78
[dvvideo @ 0x337b540] AC EOB marker is absent pos=64
[dvvideo @ 0x337b540] AC EOB marker is absent pos=66
[dvvideo @ 0x337b540] AC EOB marker is absent pos=75
[dvvideo @ 0x337b540] AC EOB marker is absent pos=71
Last message repeated 6 times
[dvvideo @ 0x337b540] AC EOB marker is absent pos=66
[dvvideo @ 0x337b540] AC EOB marker is absent pos=64
AC EOB marker is absent pos=64mes
Last message repeated 3 times
[dvvideo @ 0x337b540] AC EOB marker is absent pos=74
[dvvideo @ 0x337b540] AC EOB marker is absent pos=67
[dvvideo @ 0x337b540] AC EOB marker is absent pos=84
[dvvideo @ 0x337b540] AC EOB marker is absent pos=64
Last message repeated 2 times
[dvvideo @ 0x337b540] AC EOB marker is absent pos=65
[dvvideo @ 0x337b540] AC EOB marker is absent pos=65
Last message repeated 1 timesssage repeated 1 times
[dvvideo @ 0x337b540] AC EOB marker is absent pos=66
AC EOB marker is absent pos=64mes
[dvvideo @ 0x337b540] [dvvideo @ 0x337b540] AC EOB marker is absent pos=64
[dvvideo @ 0x337b540] AC EOB marker is absent pos=64
[dvvideo @ 0x337b540] Last message repeated 1 times
Last message repeated 1 times
AC EOB marker is absent pos=65
Last message repeated 1 times
[dvvideo @ 0x337b540] AC EOB marker is absent pos=65
AC EOB marker is absent pos=71
[dvvideo @ 0x337b540] AC EOB marker is absent pos=65
[dvvideo @ 0x337b540] AC EOB marker is absent pos=65
[dvvideo @ 0x337b540] AC EOB marker is absent pos=69
Last message repeated 2 times
[dvvideo @ 0x337b540] AC EOB marker is absent pos=66
[dvvideo @ 0x337b540] AC EOB marker is absent pos=64
[dvvideo @ 0x337b540] AC EOB marker is absent pos=68
[dvvideo @ 0x337b540] AC EOB marker is absent pos=64
[dvvideo @ 0x337b540] AC EOB marker is absent pos=64
Last message repeated 2 times
[dvvideo @ 0x337b540] AC EOB marker is absent pos=65
Last message repeated 2 times
[dvvideo @ 0x337b540] [dvvideo @ 0x337b540] [dvvideo @ 0x337b540] AC EOB
marker is absent pos=64
[dvvideo @ 0x337b540] AC EOB marker is absent pos=64
[dvvideo @ 0x337b540] AC EOB marker is absent pos=72
[dvvideo @ 0x337b540] AC EOB marker is absent pos=67
AC EOB marker is absent pos=71
[dvvideo @ 0x337b540] AC EOB marker is absent pos=66
[dvvideo @ 0x337b540] AC EOB marker is absent pos=64
[dvvideo @ 0x337b540] AC EOB marker is absent pos=64
Last message repeated 1 times
[dvvideo @ 0x337b540] [dvvideo @ 0x337b540] AC EOB marker is absent pos=65
AC EOB marker is absent pos=75
[dvvideo @ 0x337b540] AC EOB marker is absent pos=67
[dvvideo @ 0x337b540] AC EOB marker is absent pos=68
Last message repeated 1 timesssage repeated 1 times
[dvvideo @ 0x337b540] AC EOB marker is absent pos=78
Last message repeated 1 times
[dvvideo @ 0x337b540] AC EOB marker is absent pos=65
[dvvideo @ 0x337b540] AC EOB marker is absent pos=66
[dvvideo @ 0x337b540] [dvvideo @ 0x337b540] AC EOB marker is absent pos=79
AC EOB marker is absent pos=65
[dvvideo @ 0x337b540] AC EOB marker is absent pos=74
[dvvideo @ 0x337b540] AC EOB marker is absent pos=64
AC EOB marker is absent pos=66mes
Last message repeated 1 times
[dvvideo @ 0x337b540] AC EOB marker is absent pos=65
[dvvideo @ 0x337b540] AC EOB marker is absent pos=64
[dvvideo @ 0x337b540] AC EOB marker is absent pos=73
[dvvideo @ 0x337b540] AC EOB marker is absent pos=64
[dvvideo @ 0x337b540] Last message repeated 1 times
[dvvideo @ 0x337b540] AC EOB marker is absent pos=64
AC EOB marker is absent pos=66
[dvvideo @ 0x337b540] [dvvideo @ 0x337b540] AC EOB marker is absent pos=64
[dvvideo @ 0x337b540] AC EOB marker is absent pos=66
[dvvideo @ 0x337b540] AC EOB marker is absent pos=66
AC EOB marker is absent pos=65
AC EOB marker is absent pos=79
[dvvideo @ 0x337b540] AC EOB marker is absent pos=64
[dvvideo @ 0x337b540] AC EOB marker is absent pos=64
[dvvideo @ 0x337b540] AC EOB marker is absent pos=79
Last message repeated 1 times
[dvvideo @ 0x337b540] AC EOB marker is absent pos=82
[dvvideo @ 0x337b540] AC EOB marker is absent pos=71
[dvvideo @ 0x337b540] AC EOB marker is absent pos=64
Truncating packet of size 120000 to 88569
frame= 20 fps=0.0 q=2.0 Lsize= 1333kB time=00:00:00.67
bitrate=16253.5kbits/s
video:1307kB audio:16kB subtitle:0 global headers:0kB muxing overhead
0.810966%
}}}
{{{
$ ffmpeg -i out.avi out2.wav
ffmpeg version N-47510-g0f65d56 Copyright (c) 2000-2012 the FFmpeg
developers
built on Dec 6 2012 12:30:03 with gcc 4.7 (SUSE Linux)
configuration: --enable-gpl --disable-indev=jack
libavutil 52. 11.102 / 52. 11.102
libavcodec 54. 79.100 / 54. 79.100
libavformat 54. 46.100 / 54. 46.100
libavdevice 54. 3.102 / 54. 3.102
libavfilter 3. 24.100 / 3. 24.100
libswscale 2. 1.103 / 2. 1.103
libswresample 0. 17.102 / 0. 17.102
libpostproc 52. 2.100 / 52. 2.100
Input #0, avi, from 'out.avi':
Metadata:
encoder : Lavf54.46.100
Duration: 00:00:00.67, start: 0.000000, bitrate: 16253 kb/s
Stream #0:0: Video: mpeg4 (Simple Profile) (FMP4 / 0x34504D46),
yuv420p, 720x480 [SAR 8:9 DAR 4:3], 29.97 fps, 29.97 tbr, 29.97 tbn, 30k
tbc
Stream #0:1: Audio: ac3 ([0] [0][0] / 0x2000), 48000 Hz, stereo, s16,
192 kb/s
Output #0, wav, to 'out2.wav':
Metadata:
ISFT : Lavf54.46.100
Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz,
stereo, s16, 1536 kb/s
Stream mapping:
Stream #0:1 -> #0:0 (ac3 -> pcm_s16le)
Press [q] to stop, [?] for help
size= 126kB time=00:00:00.67 bitrate=1537.0kbits/s
video:0kB audio:126kB subtitle:0 global headers:0kB muxing overhead
0.062004%
}}}
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1796#comment:4>
FFmpeg <http://ffmpeg.org>
FFmpeg issue tracker
More information about the FFmpeg-trac
mailing list