The VideoLAN Forums

Hey all, I downloaded flv files from ustream.tv and they are H.263 video and "nelly moser" audio codec. The video plays fine but VLC won't play the audio. Says its an unsupported codec. This nellymoser codec seems to be quite popular in Flash. Hope we can add it soon.

Michael Campbell

PS - I'm on a Mac Pro always with the latest OS X.

http://wiki.videolan.org/VLC_Features_Formats
it says it should be supported.

Yes, Nellymoser audio is supported.
But... FLV's from ustream.tv is problematic.
VLC not recognised audio in this files (and not only VLC).
But... MPC (intenal splitter + ffdshow), The KMP (internal splitter and decoders) and MPlayer (exclude build used in actual SMPlayer) not have this problem.

[EDIT]
I'm miss info about Mac.

Yes, I found other players that would play the ustream.tv videos on the Mac OS X just fine. SWF & FLV Player by Elitma and Wimpy FLV player come to mind and both can play ustream.tv FLV files just fine.

My real motivation though is in converting these files to MP4 or something that can be viewed on the iPod nano et al. I'm using VisualHub by Techspansion to try and convert files, but it has the same trouble as Quicktime using the Perian plug-in and VLC. I get the video ok, but neither app can play or convert the NellyMoser codec in the ustream.tv files.

Still hoping someone can name me a Mac OS X converter to get the ustream.tv files into the iPod nano.

What are the messages in development version about that?

I'm check some FLV's from ustream.tv under Windows XP.

VLC media player 0.8.f - can't decode audio.

main error: no suitable decoder module for fourcc `undf'.
VLC probably does not support this sound or video format.

VLC media player 0.9.0-git-20080529-0003 - decode audio , but... unstable (crash with libffmpeg_plugin.dll when close player) and can't convert (can't open source video).