[Ffmpeg-devel] ffmpeg does not recognize sound in 3gp file

[Marcus Engene]

Hi,

I have a bunch of films from an Ericsson (? whichever model, a friend 
was filming with his phone) which are fully playable with sound in 
Apple's Quicktime player. Ffmpeg does however not want to output any 
sound from it.

Is it supposed to work?

An example file (260kB) can be found at engene.se/potatiskanon.3gp

Best regards,
Marcus

$ ffmpeg -i potatiskanon.3gp -acodec mp3 banan.mov
ffmpeg version 0.4.9-pre1, build 4755, Copyright (c) 2000-2004 Fabrice 
Bellard
  configuration:  --enable-gpl --enable-vhook --enable-mp3lame 
--enable-xvid --enable-shared --disable-mmx
  built on May 23 2005 11:37:12, gcc: 3.4.3 20050227 (Red Hat 3.4.3-22.fc3)
Input #0, mov,mp4,m4a,3gp,3g2, from 'Potatiskanon.3gp':
  Duration: 00:05:10.4, start: 0.000000, bitrate: 6 kb/s
  Stream #0.0: Video: h263, yuv420p, 176x144, 9.81 fps
  Stream #0.1: Audio: 0x726d6173, 8000 Hz, mono
Output #0, mov, to 'banan.mov':
  Stream #0.0: Video: mpeg4, yuv420p, 176x144, 9.81 fps, q=2-31, 200 kb/s
  Stream #0.1: Audio: mp3, 8000 Hz, mono, 64 kb/s
Stream mapping:
  Stream #0.0 -> #0.0
  Stream #0.1 -> #0.1
Unsupported codec (id=73728) for input stream #0.1