recv() needs MSG_TRUNC flag so it will tell actual data-size if truncate
would happen additional to setting flag for it.
Tested adjustment of MTU by sending data to localhost via netcat:
cat ~/tmp/myfile.mp3|netcat -u 127.0.0.1 1234
and vlc -Idummy -vv udp://@127.0.0.1:1234 --sout="#stat"
without this patch the udp input constantly complains about trunced
input and doesn't adjust the receiving amount.
udp fixup
Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>
(cherry picked from commit 373ee85fe5)
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>
By default we wait -1 as previously, but you can give --udp-timeout as timeout in seconds
how long we wait for next packet before deciding that input has ended.
Similar than rtp input does, doing realloc from 64k->1.5k would
usually mean extra malloc+memcpy per packet.
Also don't pass buffer onward if we don't receive any useful stuff (-1)
Re-license almost all the playback modules to LGPLv2.1+ with
authorization from their respective contributors (230+)
This includes:
- access, codec, packetizers, demux
- audio filters, audio mixers, audio output
- video filters, video chroma, video output
- text renderers
- XML parser
- ARM NEON and SSE2 optimisations (mostly for chromas and filters)
Some modules are not concerned:
- BDA and DShow access modules because Manol Manolov is AWOL
- Real RTSP, because it is derived from Xine
- x264 and t140 because they are encoders only
- DLL Loader, because it is derived from MPlayer
- DTS packetizer, because Jon Lech Johansen is AWOL
- Shine and WMAfixed, because they are derived from Rockbox
- Real demuxer, as it is derived from MPlayer and Wang Bo is AWOL
- MPC demuxer, as Yavor Doganov is AWOL
- Tivo demuxer, because it is derived from an MPlayer fork
- Playlist demuxer, (WPL and ZPL parts missing), because suheaven is AWOL
- iOS audio output and video display, because author refuses the license change
- Equalizer and compressor, because Ronald Wright is AWOL
- Mono, Headphone and Dolby, because author refuses the license change
- hqdn3d and yadif, because they are from MPlayer/libavfilter
- remoteosd, because it derives from RealVNC code
- MMX optimisations, because Ollie Lho, from SiS, is AWOL
- Rotate, because it depends on GPL motion
Nota Bene:
- Some modules depend on GPL-only libraries, a LGPL module does not mean
that the resulting binary module will be LGPL.
Libraries affected would include liba52, libdvdcss, libdvdnav, libdvdread,
faad2, libdca, libmad, libmpeg2, libpostproc, SRC, sid, zvbi and probably others.
If a non-default UDP multicast destination port is used, it can and
should be specified through the MRL. Anyway, you should not use raw UDP
streaming ;-)
It removed the need of access_t.info.b_prebuffered
It reduces latency (removing the need for stream immediate)
It may increase a little the CPU usage but only for demuxer that
already do too much small stream reads.