[SIPForum-discussion] FMTP / RTPMAP

[Geo Paul]

When ever a dynamic payload type is used in the sdp or when ever
additional information is required to decode, the additional information
should be given in
      a=rtpmap:<payload type> <encoding name>/<clock rate>[/<encoding
     parameters>]
 
 
a=fmtp:<format> <format specific parameters>
       This attribute allows parameters that are specific to a
       particular format to be conveyed in a way that SDP doesn't have
       to understand them.  The format must be one of the formats
       specified for the media.  Format-specific parameters may be any
       set of parameters required to be conveyed by SDP and given
       unchanged to the media tool that will use this format.
 
       It is a media attribute, and is not dependent on charset.
 
 
Geo

 

 

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From: Mhike [mailto:mhiqe at yahoo.com] 
Sent: Wednesday, October 03, 2007 4:31 AM
To: discussion at sipforum.org
Subject: [SIPForum-discussion] FMTP / RTPMAP

 

Hi,

Can anyone tell me what's the meaning of FMTP and RTPMAP? What are their
differences?

Thanks.

 

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