> I am developing an application that receives data from a microphone, > compresses it, sends it and decompresses it. > > Now I would like to have the option to compress the data to different formats > e.g. mp3, wav etc. This should be send to the receiver which will then > choose the best decoder based on the type of data received. > > Can this information be included in the SDPDescription?
Yes, you could do this by (in your server) adding two separate "ServerMediaSubsession" (subclass) objects to your "ServerMediaSession" object: One "ServerMediaSubsession" (subclass) object for the MP3 audio, and another "ServerMediaSubsession" (subclass) object for the PCM audio. These will appear as separate "m=" limes in the SDP description, and will - if streamed - be sent as separate RTP streams, on separate port numbers. A RTSP client could - in principle - use the SDP description to decide which of these streams it wants to "PLAY". Ross Finlayson Live Networks, Inc. http://www.live555.com/
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