> In my opinion this behaviour is inappropriate, since I use TCP streaming
> exactly because I never must drop a frame.
This is unrealistic, and impossible if your network stream is exceeding the
capacity of your network - which is what’s happening in your case.
You are streaming datagrams, which means that - even if you’re encapsulating
them within a TCP connection - you have to be prepared for the possibility of
some of these datagrams being lost. It’s important to understand the
difference between transmitting a stream - which occurs at a fixed data rate,
regardless of what kind of network you happen to have underneath you - and
downloading a file (i.e, the World-Wide Web), which occurs over TCP connections
whose speed automatically matches the speed of the underlying network. We’re
doing the former; not the latter.
I won’t be changing the existing code in this case. Please also read these
earlier responses to other people who have asked the same thing:
http://lists.live555.com/pipermail/live-devel/2014-September/018693.html
http://lists.live555.com/pipermail/live-devel/2015-July/019523.html
> I also find that increasing the TCP sendbuffer from 50kB to 1MB in
> GenericMediaServer.cpp is helpful in this cause.
FYI, this is something that you can do yourself, in your own code - e.g., in
your implementation of the “createNewRTPSink()” virtual function.
Also:
> especially when I send big I-Frames.
It’s best not to try and transmit very large I-frames. Instead, they are best
broken up into multiple ‘slice’ NAL units. This is also something that I’ve
covered multiple times, e.g.,
http://lists.live555.com/pipermail/live-devel/2011-December/014190.html
http://lists.live555.com/pipermail/live-devel/2012-August/015615.html
http://lists.live555.com/pipermail/live-devel/2013-May/016994.html
http://lists.live555.com/pipermail/live-devel/2014-June/018426.html
http://lists.live555.com/pipermail/live-devel/2014-June/018432.html
http://lists.live555.com/pipermail/live-devel/2014-June/018433.html
http://lists.live555.com/pipermail/live-devel/2014-June/018434.html
http://lists.live555.com/pipermail/live-devel/2015-March/019135.html
http://lists.live555.com/pipermail/live-devel/2015-April/019228.html
Ross Finlayson
Live Networks, Inc.
http://www.live555.com/
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