[FFmpeg-trac] #929(avcodec:new): AAC 5.1 channel decoding issue
FFmpeg
trac at avcodec.org
Sat Jan 21 18:06:26 CET 2012
#929: AAC 5.1 channel decoding issue
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Reporter: kaijun61 | Owner:
Type: defect | Status: new
Priority: normal | Component: avcodec
Version: git-master | Resolution:
Keywords: AAC | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Changes (by cehoyos):
* version: unspecified => git-master
Comment:
Replying to [comment:2 kaijun61]:
> it sounds like 5 channels not downmixed when compared with a DSP aac
codec.
>
> ffmpeg -i test.mp4
Since the command line you provide does not downmix anything (it only
prints information about a media file and you do not claim that anything
about the printed information is wrong), I don't think anybody could
reproduce your issue.
Please provide a ffmpeg command line that allows to reproduce the problem
together with the complete, uncut console output.
> ffmpeg version git-2012-01-20-003b81b Copyright (c) 2000-2012 the FFmpeg
developers
> built on Jan 20 2012 21:40:59 with gcc 4.5.3 20110311 (prerelease)
> configuration: --enable-shared --enable-pthreads --disable-stripping
--disable-gpl --disable-postproc --disable-avfilter --enable-swscale
--enable-swresample --enable-neon --enable-pic --enable-debug --enable-
ffmpeg --enable-ffplay --disable-avprobe --disable-avserver --cross-prefix
=arm-angstrom-linux-gnueabi- --prefix=/usr --disable-x11grab --disable-
libgsm --enable-libmp3lame --enable-libschroedinger --enable-libtheora
--enable-libvorbis --disable-libvpx --arch=arm --target-os=linux --enable-
cross-compile --disable-optimizations --extra-cflags=' -O0 -fno-omit-
frame-pointer -ggdb3 -march=armv7-a -mtune=cortex-a8 -mfpu=neon -mfloat-
abi=softfp -mthumb-interwork -mno-thumb
--sysroot=/home/tang/Projects/OE/build/tmp/sysroots/armv7a-angstrom-linux-
gnueabi' --extra-ldflags='-Wl,-O1 -Wl,--hash-style=gnu'
--sysroot=/home/tang/Projects/OE/build/tmp/sysroots/armv7a-angstrom-linux-
gnueabi --enable-hardcoded-tables --cpu=cortex-a8
> WARNING: library configuration mismatch
While this is probably not related, you could make testing and reproducing
the problem much easier if you you compiled without "--enable-shared"
Any reason why you compile with "--disable-optimizations"?
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/929#comment:3>
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