[Live-devel] [MediaServer] Streaming mp3 file issues

[Ross Finlayson]

>I'm currently using mediaServer to stream various media on a local network.
>Next, I implemented a small RTSP client to receive & play that stream.
>
>It works really great with WAV/PCM files, but I experience some 
>issues with MP3 files.
>After some investigation, I found out what is going on : I use 
>systematically provided samplerate (rtpTimeStampFrequency), which is 
>set to 90khz for mP3 files (RTP payload :14)...
>Incorrect value of course, and it messes up all my playback routines 
>afterwards...
>
>Is it possible to obtain an accurate sample rate value through 
>liveMedia classes, or do I need to do some computing ?

The latter.  The sampling frequency for MPEG-1 or 2 audio (which 
includes 'MP3') is encoded in the data's MPEG audio header.  It has 
nothing to do with the RTP timestamp frequency.
-- 

Ross Finlayson
Live Networks, Inc.
http://www.live555.com/