[Ffmpeg-devel] Bug in FLV video size recognition?

Michel Bardiaux mbardiaux
Thu Jan 25 16:11:32 CET 2007


deadhead wrote:
> 2007/1/23, Michael Niedermayer <michaelni at gmx.at>:
>> Hi
> ...snip...
> 
> First of all thank you for all your answers .
> Unfortunately I'm  not so skilled  to fully understand what have you 
> proposed :P
> 
> The fact that the video is misrecognized, due to some bad info in the
> file make me happy because at least now I know where the problem is:
> in  the program that has generated that video.
> 
> That fact make me even unhappy because from this video I have to
> generate 2  other videos. One with reduced quality and the other with
> an impressed logo, done using imlib2.
> 
> I create the low quality version with
> 
> ffmpeg -y -i  1172.flv  -acodec mp3 -ar 22050 -ab 48 -b 256k 1172_lowq.flv
> 
> http://deadhead.altervista.org/ffmpeg/1172_lowq.flv
> 
> and this is the response from ffmpeg
> 
> ffmpeg -i 1172_lowq.flv
> FFmpeg version SVN-rUNKNOWN, Copyright (c) 2000-2006 Fabrice Bellard, et 
> al.
> configuration:  --prefix=/usr/local --enable-mp3lame --enable-faac
> --enable-faad --enable-gpl --enable-pp --enable-pthreads
> --cpu=pentium4 --disable-altivec --disable-bktr --disable-debug
> --disable-dv1394 --disable-v4l --disable-v4l2 --disable-audio-oss
> --disable-audio-beos --disable-mpegaudio-hp --disable-ipv6
> libavutil version: 49.2.0
> libavcodec version: 51.28.0
> libavformat version: 51.7.0
> built on Jan 20 2007 10:49:07, gcc: 4.1.2 20061028 (prerelease)
> (Debian 4.1.1-19)

Michael fixed the size recognition problem in r7668. Upgrade and retry. 
Note that ffmpeg should NOT announce SVN-rUNKNOWN then. If it does, 
something is broken with your build process.

-- 
Michel Bardiaux
R&D Director
T +32 [0] 2 790 29 41
F +32 [0] 2 790 29 02
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