ffmpeg - flv Unsupported audio codec
 

Hello all,

How do I add flv support? I would also be grateful for links to tutorials on how to do this.

Thanks all

This is my version of ffmpeg. It seems old, how can I update it with the latest. I have already updated yum?

ffmpeg -version
FFmpeg version SVN-rUNKNOWN, Copyright (c) 2000-2007 Fabrice Bellard, et al.
configuration: --prefix=/usr --libdir=/usr/lib --mandir=/usr/share/man --incdir=/usr/include/ffmpeg --enable-libmp3lame --enable-libogg --enable-libvorbis --enable-libogg --enable-libtheora --enable-libfaad --enable-libfaac --enable-libgsm --enable-xvid --enable-x264 --enable-liba52 --enable-liba52bin --enable-pp --enable-shared --enable-pthreads --enable-gpl --disable-strip
libavutil version: 49.4.0
libavcodec version: 51.40.4
libavformat version: 51.12.1
built on May 30 2007 15:17:57, gcc: 4.1.2 20070502 (Red Hat 4.1.2-12)
ffmpeg SVN-rUNKNOWN
libavutil 3212288
libavcodec 3352580
libavformat 3345409

what does

ffmpeg -formats | grep flv

show?

FFmpeg version SVN-rUNKNOWN, Copyright (c) 2000-2007 Fabrice Bellard, et al.
configuration: --prefix=/usr --libdir=/usr/lib --mandir=/usr/share/man --incdir=/usr/include/ffmpeg --enable-libmp3lame --enable-libogg --enable-libvorbis --enable-libogg --enable-libtheora --enable-libfaad --enable-libfaac --enable-libgsm --enable-xvid --enable-x264 --enable-liba52 --enable-liba52bin --enable-pp --enable-shared --enable-pthreads --enable-gpl --disable-strip
libavutil version: 49.4.0
libavcodec version: 51.40.4
libavformat version: 51.12.1
built on May 30 2007 15:17:57, gcc: 4.1.2 20070502 (Red Hat 4.1.2-12)
DE flv flv format
DEVSD flv


Ok I must be using it wrong then, I use it like this:

And what happens then?

I get a segmentation fault:

FFmpeg version SVN-rUNKNOWN, Copyright (c) 2000-2007 Fabrice Bellard, et al.
configuration: --prefix=/usr --libdir=/usr/lib --mandir=/usr/share/man --incdir=/usr/include/ffmpeg --enable-libmp3lame --enable-libogg --enable-libvorbis --enable-libogg --enable-libtheora --enable-libfaad --enable-libfaac --enable-libgsm --enable-xvid --enable-x264 --enable-liba52 --enable-liba52bin --enable-pp --enable-shared --enable-pthreads --enable-gpl --disable-strip
libavutil version: 49.4.0
libavcodec version: 51.40.4
libavformat version: 51.12.1
built on May 30 2007 15:17:57, gcc: 4.1.2 20070502 (Red Hat 4.1.2-12)
[flv @ 0xb7fbd114]Unsupported audio codec (6)
[flv @ 0xb7fbd114]Could not find codec parameters (Audio: 0x0006)
Segmentation fault

I think I need the latest ffmpeg because this codec is called "N....." (forgot the name!). They (ffmpeg) have only recently provided support for it.

That's it, it called Nellymoser audio codec.

Damn it - I installed lastest version and I get the following:

Why are you setting vframes to 1 (or trying to)?

I am trying to get a single frame from the flv so I can use it as a thumbnail. What should I change that 1 to?

Ok it works fine when i remove the -vframes l option. Sheesh!

Not sure how to extract a single frame - never done that one

Maybe the example here will help

http://mediacoder.sourceforge.net/wi...p/FFMPEG_Usage

The above I have works now with the removal of "-vframes l". Thanks for the tutorial and your help billymayday :)