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RTP over RTSP (TCP) support in QuickTime

Subject: RTP over RTSP (TCP) support in QuickTime
From: Skye Poier Nott <email@hidden>
Date: Wed, 21 Feb 2007 16:53:14 -0800
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Hi, a new question. I'd like to make sure I'm understanding this correctly.

It looks like even though DSS/QTSS supports "interleaved RTP" (ie RTP over the RTSP TCP channel) for NAT traversal, QuickTime Player doesn't support it!

This seems kind of crazy to me. From the debug logs, QT Player first tries RTP over UDP and when that times out, falls back to the special Apple-only RTP tunneled over HTTP method. Is that right? Why does Apple's server support a nice NAT traversal mechanism that their own player doesn't implement??

I've verified DSS works fine in RTP over RTSP mode with the openRTSP client in "-t" mode (which sends a SETUP with Transport: RTP/AVP/ TCP;unicast;interleaved=0-1 and works great behind NAT)

Thanks!
Skye

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