Muxed video and audio streaming

[doon]

I have read the RFC subparagraph about stream multiplexing. So I should use
one port for only one media type and 2 ports for rtcp sender and receiver.
So if I want to create a video and audio call, then I need to use 12 ports?
Video sender and two rtcp, audio sender and two rtcp, video receiver and two
rtcp, audio receiver and two rtcp. 
I tink it's too much! Is it so? And what alternatives can you suggest?

doon wrote
> I want to stream video(webcam) and audio(micro) via udp transport. But I
> only found pipelines with rtp in udp and with separate ports for video and
> audio. 
> How it will affect on synchronization of video and audio? 
> What methods I can use for synchronization? 
> And may be I can just mux video and audio and send it using udp or rtp
> with udp(or if I cant why?)?





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