Re: [Ccrtp-devel] PCMU payload 0 and DTMF (RFP 2388)

[Federico Montesino Pouzols]

        Hi,

        when you specify the payload type with setPayloadFormat, ccRTP
will use it for two things (that I can remember now :) ):

        - setting the pt field in outgoing packets headers

        - mapping the RTP timestamp to the wallclock. With PCMU, 8000
in the timestamp field equals to 1 second of real time, and from some
RTCP packets ccRTP also guess an absolute reference time.

        Apart from this, no filtering of incoming packets depending of
its pt field is done by default. You can add the filtering by
redefining onRTPPacketRecv.

        Also, there is a newer release, 1.1, at
http://sf.net/projects/cplusplus
       
On Tue, Apr 06, 2004 at 08:14:51PM -0400, Paul Carreiro wrote:
> Hi:
> 
> I’m just wondering if it is possible, with the current release 1.0.2 to be
> able to receive PCMU payload type 0 and audio/telephone-events (RFP 2388)
> off of the same port from the same source?  From the examples, it looks like
> the payload type is specified and I haven’t determined if two PCMU and say
> dynamic type 100 for audio/telephone-events can be received or will the
> library ignore the audio if PCMU is specified?
> 
> Any info would be of great help.
> 
> Thanks,
> 
> Paul

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