使用97型区分动态RTP有效负载

Question

When receiving and parsing RTP audio, how do I differentiate between the various payload types that all use the same dynamic payload type in the RTP header? For example, I've got both Speex and iLBC packets coming in and both specify payload type 97 in the RTP header. How else can I tell them apart?

Answer 1

有效负载类型96-127属于动态有效负载类型（请参阅RFC3551 ），这意味着如果您需要有关媒体类型的更多信息，则需要SDP。