On 06/02/2010 12:41 PM, sotlef wrote:
[...]
but now i warry about another problem: does rtp pack every frame in one udp
packet or several
It depends on the payload type, on the frame size, etc... In general, for
video RTP tries to put at most one frame per RTP packet, and tries to avoid
splitting RTP packets in multiple UDP packets (this is, AFAIK, not mandated
by the standard, but recommended).
So, you generally end up with a video frame split in multiple RTP packets
(of size about 1500 bytes).
- I think that video frame packet divided in several udp
packets but each udp packet is rtp packet?
Yes, see above.
how rtp implementation in ffmpeg
solves problem of udp packets which comes not that order which it was
sended?
libavformat currently does not address this problem (so, if packets are
received in the wrong order you might experience a very high packet loss).
People are working on this, and some patches have been recently proposed
(see the ffmpeg-devel archives).
Luca
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