The MTU size was too small since it subtracted the Ethernet header size
which is not included in MTU. This fix results in 14 bytes larger
RTP frames, which increases throughput slightly.
Also added few sizes for IPv6, but they are not used yet.
SCC has an increased chance of losing frames at the receiving end if
used and I think this justifies it disabling. The benefit of SCC is
reduce CPU usage at the sender. Added a flag for enabling it.
This may break some implementation if they don't want start code prefix
for some reason or if they already implemented start code prefix in
their code.
Those who implemented themselves are using an inferior solution
(one extra stream copy for fragmented frames) and should update anyway.
Those who use the flag will just get a warning to update their flags.
Those whose decoder doesn't want start code prefix may not work without
adding a flag.
The API forced uvgRTP to both bind to local port even if user does not
need or want this and it also expects the user to know the remote
remote address which is not always possible.
This commit adds API to session for specifying only one port when
creating media_stream. This commit also adds RCE_SEND_ONLY and
RCE_RECEIVE_ONLY flags which can be used to prevent binding and specify
the meaning of single address and port parameters.
I noticed that H263 uses a very similar fragmentation as
RCE_FRAGMENT_GENERIC and this commit modifies the implementation to use
the exactly same scheme in case we want to support H263 at some point.
I've already created one bug by not being able to distinguish between
different flags. uvgRTP has four types of flags: enable, context, rtp
and socket. I'm planning on adding one more flag type which makes this
a good point to rename all flags.
The dispatching is what technique the class uses, but it does not
describe its responsibilities at all making it very hard to figure out
what role it plays in the architecture just by looking at the name.
Also removed all references to obsolete System call dispatcher
(different concept) in all the comments.
Joni Räsänen