Audio buffer size

[pierre.crc at gmail.com (Pierre CLARENC)]

Hi,

I play audio stream (mp3) using RTSP and I want to adjust dynamically the
plackback speed (using the playback speed variable).

However, I can play faster only for a short time (until buffer underflow or
overflow). So, I want to adjust audio buffer size to increase this time.

But using "-cache 1024" (which is a lot of audio buffering!) and "-min-cache
50" seems to have no effect. Are these options works only for video playback
? How does Mplayer manage audio buffering (default size) ?

Thanks in advance,

Pierre Crc