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RFC 3550 states that the payload type of an RTP stream can
change at any time, and that the timestamp frequency is dependent on the
payload type. If the payload type changes mid-stream in a way that changes the
frequency of the timestamp (from 16kHz to 8kHz for example), how should this be
handled by the RTP receiver? Will the new timestamps continue where the old
left off (and now at the different frequency), or will they be consistent with
their wall-clock time association (meaning that timestamp values could jump
backward and forward at payload type transitions)? Or, is a new random starting
timestamp chosen? Kevin O’Connor Interactive Intelligence Inc. |
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