[vlc-devel] [PATCH 3/3] access/udp: reduce mtu amount on initial packets

Francois Cartegnie fcvlcdev at free.fr
Tue Oct 16 15:52:18 CEST 2018

Le 16/10/2018 à 15:28, Ilkka Ollakka a écrit :
> Like mentioned previously, this patch doesn't touch the RTP receiving
> side of things. If you have case where plain udp access gets highly
> variable size packets that breaks up, then I'm interested to hear about
> that.
> But if you think I don't need the capture or RTP case is unresolvable by
> nature without using really high buffers, then we are stuck and we
> should focus on other things.

UDP packet size depends on RTP payload. All your test streams really do
aggregate RTP packets at byte level and use padding on end ?

You can clearly see the H264 RTP stream with each NAL < (MTU - headers)
being in a single packet, so final packet < MTU:


Francois Cartegnie
VideoLAN - VLC Developer

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