[MEncoder-users] MP3 via LAVC

[double]

Hello,

Is there a chance to encode MP3 via LAVC?

This works ( -oac mp3lame ):

mencoder  source.avi  -o output.flv  -of lavf  -ovc lavc  -oac mp3lame
    -lavcopts vcodec=flv:vbitrate=500  -lameopts abr:br=64
    -lavfopts i_certify_that_my_video_stream_does_not_use_b_frames

This fails ( -oac lavc  -lavcopts acodec=mp3 ):

mencoder  source.avi  -o output.flv  -of lavf  -ovc lavc -oac lavc
    -lavcopts vcodec=flv:vbitrate=500:acodec=mp3:abitrate=64
    -lavfopts i_certify_that_my_video_stream_does_not_use_b_frames

Error message:
Audio LAVC, couldn't find encoder for codec mp3.

"The Wanderer" started a thread 2005 about this issue, but I could not
determine the solution:
http://lists.mplayerhq.hu/pipermail/mplayer-users/2005-November/056781.html

Thank you very much
Markus