[Ffmpeg-user] flv to mp3 conversion - unsupported codec

[Evert|Rooftop]

That post is from februari 15, 2006.. I had high hopes when I heard 
about this..

But they didn't keep their promise..

There is one quite nasty solution to achieve encoding nellymoser->mp3.. 
fire up a flashplayer, capture the audio output and re-encode that..
check: http://nxb.fr/flv2mp3/

Evert

Michel Bardiaux wrote:
> Andy Tawse wrote:
>> Hi
>>
>> I'm posting here after trawling the list archive.
>> I'm trying to convert audio FLVs (created with Flash Media Server) into
>> MP3s.
>> I got the latest release from SVN today and built with lame mp3 support.
>> Here's what happens
>>
>> [root at testing-server1 _definst_]# ffmpeg -i w2.flv w2.mp3
>>
>> FFmpeg version SVN-r8161, Copyright (c) 2000-2007 Fabrice Bellard, et 
>> al.
>>   configuration: --enable-libmp3lame --extra-cflags=-DHAVE_LRINTF
>>   libavutil version: 49.3.0
>>   libavcodec version: 51.35.0
>>   libavformat version: 51.10.0
>>   built on Feb 27 2007 22:32:50, gcc: 3.4.6 20060404 (Red Hat 3.4.6-3)
>> [flv @ 0x830ef80]Unsupported audio codec (6)
>> [flv @ 0x830ef80]Unsupported audio codec (6)
>> Input #0, flv, from 'w2.flv':
>>   Duration: 00:00:01.4, start: 0.000000, bitrate: N/A
>>   Stream #0.0: Audio: 0x0006, 44100 Hz, mono
>> Output #0, mp3, to 'w2.mp3':
>>   Stream #0.0: Audio: mp3, 44100 Hz, mono, 64 kb/s
>> Stream mapping:
>>   Stream #0.0 -> #0.0
>> Unsupported codec (id=0) for input stream #0.0
>
> According to The Holy Source (TM)(R)(C)(Pat Pend), this is 
> FLV_CODECID_NELLYMOSER, and it is indeed not supported. I'm sure Flash 
> Media Server can encode to something civilized like mp3. Oh no, a bit 
> of googling (Copernicking actually) shows it actually *cant*! Now that 
> is really really brain-damaged... But at the same place you can find 
> some hope too:
>
> http://www.progettosinergia.com/flashvideo/flashvideoblog.htm
>
> (Not the ffmpeg advocacy, the bit with "February 15, 2006
> Good News: a Nelly Moser ASAO transcoder from Adobe ?". All you have 
> to do is find it on their site...)
>
> Greetings,