Bug#433921: doesn't honor audio bitrate
Jochen Friedrich
jochen at scram.de
Fri Jul 20 11:05:55 UTC 2007
Package: ffmpeg
Version: 0.cvs20070307-6
Severity: normal
Trying to specify a fixed audio bitrate doesn't work:
ffmpeg -i /data/video/Ratten_Sie_sind_ueberall.avi -vn -ab 224 -ar 44100
-ac 2 -acodec mp2 -y /tmp/audio.mp2
FFmpeg version SVN-rUNKNOWN, Copyright (c) 2000-2007 Fabrice Bellard, et
al.
configuration: --enable-gpl --enable-pp --enable-swscaler
--enable-pthreads --enable-libvorbis --enable-libtheora --enable-libogg
--enable-liba52 --enable-libdts --enable-libgsm --enable-dc1394
--disable-debug --enable-shared --prefix=/usr
libavutil version: 1d.49.3.0
libavcodec version: 1d.51.38.0
libavformat version: 1d.51.10.0
built on Jun 23 2007 14:31:53, gcc: 4.1.3 20070601 (prerelease)
(Debian 4.1.2-12)
Input #0, avi, from '/data/video/Ratten_Sie_sind_ueberall.avi':
Duration: 01:23:35.6, start: 0.000000, bitrate: 634 kb/s
Stream #0.0: Video: mpeg4, yuv420p, 512x384, 25.00 fps(r)
Stream #0.1: Audio: mp3, 44100 Hz, stereo, 96 kb/s
Output #0, mp2, to '/tmp/audio.mp2':
Stream #0.0: Audio: mp2, 44100 Hz, stereo, 0 kb/s <<<<<<<<<<<
Stream mapping:
Stream #0.1 -> #0.0
With 0.cvs20060823-8, this worked OK:
ffmpeg -i /data/video/Ratten_Sie_sind_ueberall.avi -vn -ab 224 -ar 44100
-ac 2 -acodec mp2 -y /tmp/audio.mp2
FFmpeg version SVN-rUNKNOWN, Copyright (c) 2000-2004 Fabrice Bellard
configuration: --enable-gpl --enable-pp --enable-pthreads
--enable-vorbis --enable-libogg --enable-a52 --enable-dts
--enable-libgsm --enable-dc1394 --disable-debug --enable-shared
--prefix=/usr
libavutil version: 0d.49.0.0
libavcodec version: 0d.51.11.0
libavformat version: 0d.50.5.0
built on Mar 26 2007 15:50:40, gcc: 4.1.2 20061115 (prerelease)
(Debian 4.1.1-21)
Input #0, avi, from '/data/video/Ratten_Sie_sind_ueberall.avi':
Duration: 01:23:35.6, start: 0.000000, bitrate: 634 kb/s
Stream #0.0: Video: mpeg4, yuv420p, 512x384, 25.00 fps(r)
Stream #0.1: Audio: mp3, 44100 Hz, stereo, 96 kb/s
Output #0, mp2, to '/tmp/audio.mp2':
Stream #0.0: Audio: mp2, 44100 Hz, stereo, 224 kb/s <<<<<<<<<<<<<
Stream mapping:
Stream #0.1 -> #0.0
-- System Information:
Debian Release: lenny/sid
APT prefers unstable
APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1, 'experimental')
Architecture: i386 (i686)
Kernel: Linux 2.6.21-2-686 (SMP w/2 CPU cores)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Versions of packages ffmpeg depends on:
ii libavcodec1d 0.cvs20070307-6 ffmpeg codec library
ii libavformat1d 0.cvs20070307-6 ffmpeg file format library
ii libavutil1d 0.cvs20070307-6 ffmpeg utility library
ii libc6 2.6-2 GNU C Library: Shared libraries
ii libfreetype6 2.3.5-1+b1 FreeType 2 font engine, shared lib
ii libimlib2 1.3.0.0debian1-4 powerful image loading and renderi
ii libsdl1.2debian 1.2.11-9 Simple DirectMedia Layer
ii libswscale1d 0.cvs20070307-6 ffmpeg video scaling library
ffmpeg recommends no packages.
-- no debconf information
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