Public bug reported:
Note: "libavcodec-extra-53" is installed
When I issue
ffmpeg -i A.mp4 -ac 2 B.mp4
The result is
ffmpeg version 0.7.2-4:0.7.2-1ubuntu1, Copyright (c) 2000-2011 the Libav
developers
built on Oct 2 2011 15:13:26 with gcc 4.6.1
configuration: --extra-version='4:0.7.2-1ubuntu1' --arch=amd64 --prefix=/usr
--enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger
--enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads
--enable-zlib --enable-libvpx --enable-runtime-cpudetect --enable-vaapi
--enable-gpl --enable-postproc --enable-swscale --enable-x11grab
--enable-libdc1394 --enable-shared --disable-static
WARNING: library configuration mismatch
avutil configuration: --extra-version='4:0.7.2.1ubuntu1' --arch=amd64
--prefix=/usr --enable-vdpau --enable-bzlib --enable-libgsm
--enable-libschroedinger --enable-libspeex --enable-libtheora
--enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx
--enable-runtime-cpudetect --enable-vaapi --enable-libopenjpeg --enable-gpl
--enable-postproc --enable-swscale --enable-x11grab --enable-libdirac
--enable-libmp3lame --enable-librtmp --enable-libx264 --enable-libxvid
--enable-libvo-aacenc --enable-version3 --enable-libvo-amrwbenc
--enable-version3 --enable-libdc1394 --enable-shared --disable-static
avcodec configuration: --extra-version='4:0.7.2.1ubuntu1' --arch=amd64
--prefix=/usr --enable-vdpau --enable-bzlib --enable-libgsm
--enable-libschroedinger --enable-libspeex --enable-libtheora
--enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx
--enable-runtime-cpudetect --enable-vaapi --enable-libopenjpeg --enable-gpl
--enable-postproc --enable-swscale --enable-x11grab --enable-libdirac
--enable-libmp3lame --enable-librtmp --enable-libx264 --enable-libxvid
--enable-libvo-aacenc --enable-version3 --enable-libvo-amrwbenc
--enable-version3 --enable-libdc1394 --enable-shared --disable-static
libavutil 51. 7. 0 / 51. 7. 0
libavcodec 53. 5. 0 / 53. 5. 0
libavformat 53. 2. 0 / 53. 2. 0
libavdevice 53. 0. 0 / 53. 0. 0
libavfilter 2. 4. 0 / 2. 4. 0
libswscale 2. 0. 0 / 2. 0. 0
libpostproc 52. 0. 0 / 52. 0. 0
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'A.mp4':
Metadata:
major_brand : isom
minor_version : 1
compatible_brands: isom
creation_time : 2010-11-18 08:57:45
Duration: 02:03:57.50, start: 0.000000, bitrate: 2880 kb/s
Stream #0.0(und): Video: h264 (High), yuv420p, 1280x528 [PAR 1:1 DAR
80:33], 2496 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc
Metadata:
creation_time : 2010-11-18 08:27:37
Stream #0.1(und): Audio: aac, 48000 Hz, 5.1, s16, 380 kb/s
Metadata:
creation_time : 2010-11-18 08:58:53
[buffer @ 0x1927f60] w:1280 h:528 pixfmt:yuv420p
Output #0, mp4, to 'B.mp4':
Metadata:
major_brand : isom
minor_version : 1
compatible_brands: isom
creation_time : 2010-11-18 08:57:45
encoder : Lavf53.2.0
Stream #0.0(und): Video: mpeg4, yuv420p, 1280x528 [PAR 1:1 DAR 80:33],
q=2-31, 200 kb/s, 24k tbn, 23.98 tbc
Metadata:
creation_time : 2010-11-18 08:27:37
Stream #0.1(und): Audio: libvo_aacenc, 48000 Hz, 2 channels, s16, 64 kb/s
Metadata:
creation_time : 2010-11-18 08:58:53
Stream mapping:
Stream #0.0 -> #0.0
Stream #0.1 -> #0.1
Press ctrl-c to stop encoding
Segmentation fault
ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: ffmpeg 4:0.7.2-1ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-14.23-generic 3.0.9
Uname: Linux 3.0.0-14-generic x86_64
ApportVersion: 1.23-0ubuntu4
Architecture: amd64
Date: Mon Dec 26 02:30:07 2011
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111011)
ProcEnviron:
LANGUAGE=en_GB:en
PATH=(custom, no user)
LANG=en_GB.UTF-8
SHELL=/bin/bash
SourcePackage: libav
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: libav (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug oneiric running-unity
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https://bugs.launchpad.net/bugs/908646
Title:
"Segmentation fault" when converting from 6 to 2 channels
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