#523: Assertion "channel_count == channel_count(channel_layout)" fails
--------------------------------------+------------------------------------
Reporter: cehoyos | Owner: michael
Type: defect | Status: new
Priority: important | Component: swresample
Version: git-master | Keywords:
Blocked By: | Blocking:
Reproduced by developer: 0 | Analyzed by developer: 0
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Some AAC samples are detected as "2 channels (FC)", leading to an assert
when converting to ac3.
{{{
$ ffmpeg -i out.loas out.ac3
ffmpeg version N-33192-gfe70c1f, Copyright (c) 2000-2011 the FFmpeg
developers
built on Oct 1 2011 12:36:37 with gcc 4.3.2 [gcc-4_3-branch revision
141291]
configuration: --enable-libopenjpeg
libavutil 51. 18. 0 / 51. 18. 0
libavcodec 53. 19. 0 / 53. 19. 0
libavformat 53. 13. 0 / 53. 13. 0
libavdevice 53. 4. 0 / 53. 4. 0
libavfilter 2. 43. 6 / 2. 43. 6
libswscale 2. 1. 0 / 2. 1. 0
[loas @ 0x8d3faa0] max_analyze_duration 5000000 reached at 5034667
[loas @ 0x8d3faa0] Estimating duration from bitrate, this may be
inaccurate
Input #0, loas, from 'out.loas':
Duration: N/A, bitrate: N/A
Stream #0:0: Audio: aac_latm, 48000 Hz, 2 channels (FC), s16
Incompatible sample format 's16' for codec 'ac3', auto-selecting format
'flt'
[ac3 @ 0x8d46940] channel_layout not specified
[ac3 @ 0x8d46940] No channel layout specified. The encoder will guess the
layout, but it might be incorrect.
Output #0, ac3, to 'out.ac3':
Metadata:
encoder : Lavf53.13.0
Stream #0:0: Audio: ac3, 48000 Hz, stereo, flt, 128 kb/s
Stream mapping:
Stream #0.0 -> #0.0 (aac_latm -> ac3)
Press [q] to stop, [?] for help
0.707107
0.707107
Assertion in ->ch_count == av_get_channel_layout_nb_channels(s->
in_ch_layout) failed at libswresample/rematrix.c:231
Aborted
}}}
--
Ticket URL: <http://www.avcodec.org/trac/ffmpeg/ticket/523>
FFmpeg <http://ffmpeg.org>
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