[Live-devel] Query on AMRDeinterleaver::deliverIncomingFrame

Ross Finlayson finlayson at live555.com
Thu Jan 21 04:36:45 PST 2010

>Have someone tested the functions used to deinterleave multi AMR 
>frames in a single RTP packet? Here I have a question on the method 
>I suspect this method can only support the scenario that one RTP 
>packet contains only one AMR frame.

No.  Although our current implementation supports only the 
transmission of only one AMR frame in each RTP packet 
("AMRAudioRTPSink"), it *does* support the reception (and 
deinterleaving) of multiple frames in each RTP packet.  It does this 
by redefining the virtual function "nextEnclosedFrameSize()" (in the 
class "AMRBufferedPacket").  Because of this, each "RawAMRRTPSource" 
delivers only one AMR frame at a time to its downstream object (an 
"AMRDeinterleaver"), regardless of how many AMR frames were actually 
present in the incoming RTP packet.

Ross Finlayson
Live Networks, Inc.

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