[FFmpeg-trac] #4042(undetermined:reopened): Broken console output when transcoding (broken) MEncoder files (was: ffmpeg is not able to convert mp2 audio)
FFmpeg
trac at avcodec.org
Sun Oct 19 15:04:11 CEST 2014
#4042: Broken console output when transcoding (broken) MEncoder files
-------------------------------------+-------------------------------------
Reporter: f_rush | Owner:
Type: defect | Status: reopened
Priority: minor | Component:
Version: git-master | undetermined
Keywords: | Resolution:
Blocking: | Blocked By:
Analyzed by developer: 0 | Reproduced by developer: 0
-------------------------------------+-------------------------------------
Changes (by cehoyos):
* priority: normal => minor
* status: closed => reopened
* version: 2.4.2 => git-master
* resolution: invalid =>
Comment:
When transcoding (broken) avi files made with current MEncoder, FFmpeg
shows completely wrong time information for the audio track. The attached
sample is fifteen seconds long.
{{{
$ ffmpeg -i mencoder.avi out.mp2
ffmpeg version N-67022-g69071e8 Copyright (c) 2000-2014 the FFmpeg
developers
built on Oct 19 2014 14:53:44 with gcc 4.7 (SUSE Linux)
configuration: --enable-gpl
libavutil 54. 10.100 / 54. 10.100
libavcodec 56. 8.102 / 56. 8.102
libavformat 56. 9.101 / 56. 9.101
libavdevice 56. 1.100 / 56. 1.100
libavfilter 5. 1.106 / 5. 1.106
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 3.100 / 53. 3.100
[avi @ 0x2d77d20] non-interleaved AVI
Input #0, avi, from 'mencoder.avi':
Metadata:
encoder : MEncoder SVN-r37259-4.7
Duration: 00:00:15.03, start: 0.000000, bitrate: 933 kb/s
Stream #0:0: Video: mpeg4 (Simple Profile) (FMP4 / 0x34504D46),
yuv420p, 320x240 [SAR 1:1 DAR 4:3], 695 kb/s, 30 fps, 30 tbr, 30 tbn, 30
tbc
Stream #0:1: Audio: mp2 (P[0][0][0] / 0x0050), 44100 Hz, mono, s16p,
224 kb/s
Output #0, mp2, to 'out.mp2':
Metadata:
encoder : Lavf56.9.101
Stream #0:0: Audio: mp2, 44100 Hz, mono, s16, 384 kb/s
Metadata:
encoder : Lavc56.8.102 mp2
Stream mapping:
Stream #0:1 -> #0:0 (mp2 (native) -> mp2 (native))
Press [q] to stop, [?] for help
size= 704kB time=03:02:47.26 bitrate= 0.5kbits/s
video:0kB audio:704kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: 0.000000%
}}}
The output file is fifteen seconds long and plays fine.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/4042#comment:8>
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