[Live-devel] Question about a FAQ answer

Ross Finlayson finlayson at live555.com
Wed Sep 16 23:48:16 PDT 2009


>The Live555 FAQ has this question and answer:
>
>Q: For many of the "test*Streamer" test prpgrams, the built-in RTSP
>server is optional (and disabled by default). For
>"testAMRudioStreamer", "testMPEG4VideoStreamer" and
>"testWAVAudioStreamer", however, the built-in RTSP server is
>manditory. Why?
>
>A: For those media types (AMR audio, MPEG-4 video, and PCM audio,
>respectively), the stream includes some codec-specific parameters that
>are communicated to clients out-of-band, in a SDP description. Because
>these parameters - and thus the SDP description - can vary from stream
>to stream, the only effective way to communicate this SDP description
>to clients is using the standard RTSP protocol. Therefore, the RTSP
>server is a manditory part of these test programs.
>
>My question is: does this same principle apply to H.264 as well

Yes.
-- 

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


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