Mapping of caps to SDP fields:
a=rtpmap:(payload) (encoding_name) or (clock_rate)[or (encoding_params)]
a=framesize:(payload) (width)-(height)
a=fmtp:(payload) (param)[=(value)];...
a=rtcp-fb:(payload) (param1) param2...
a=extmap:(id)/direction (extensionname) (extensionattributes)
a #GstCaps
a #GstSDPMedia
a #GstSDPResult.
Mapping of caps to SDP fields:
a=rtpmap:(payload) (encoding_name) or (clock_rate)[or (encoding_params)]
a=framesize:(payload) (width)-(height)
a=fmtp:(payload) (param)[=(value)];...
a=rtcp-fb:(payload) (param1) param2...
a=extmap:(id)/direction (extensionname) (extensionattributes)