[Live-devel] H264 FU-A

Ross Finlayson finlayson at live555.com
Sun Aug 13 08:40:56 PDT 2006


>I'm looking into H264 a bit more.
>I was wondering. I cannot find what liveMedia does with "incomplete" 
>FU-A or FU-B packets.

(I assume you're referring to *receiving* H.264/RTP packets.)

The receiving code ("H264VideoRTPSource", and its parent class 
"MultiFramedRTPSource") treats NAL units (including FU-A and FU-B) as 
being discrete 'frames'.  Their data is not delivered to the 
downstream reader unless *all* fragments are received.  (If any 
fragment is lost, then the entire NAL unit is discarded.)
-- 

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


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