October 14, 2002
Dumped RTP Headers
I wanted to check out the RTP headers of the RTP packet dump I generated last week, specifically to look at the timestamp value and also to see what the header fields look like over the sequence of packets. I can see that the marker bit is set in the last packet of each frame. The sequence number is monotonically increasing. The synchronization source ID is identical. But the 32-bit timestamp, which is supposed to be based on hardware ticks, is either wrapping around quite quickly or not monotonically increasing. This timestamp is based on the UNIX clock if not coming from the capture device.
So, I need to find out first if the RTCP stream is required for Open Mash to acknowledge and process an RTP stream. And second if the RTP packets must be delayed to somewhat match up with the timestamps.
Posted by josuah at October 14, 2002 6:55 PM UTC+00:00
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