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Martin Storsjö 86d9181cf4 rtpdec: Support sending RTCP feedback packets 
This sends NACK for missed packets and PLI (picture loss indication)
if a depacketizer indicates that it needs a new keyframe, according
to RFC 4585.

This is only enabled if the SDP indicated that feedback is supported
(via the AVPF or SAVPF profile names).

The feedback packets are throttled to a certain maximum interval
(currently 250 ms) to make sure the feedback packets don't eat up
too much bandwidth (which might be counterproductive). The RFC
specifies a more elaborate feedback packet scheduling.

The feedback packets are currently sent independently from normal
RTCP RR packets, which is not totally spec compliant, but works
fine in the environments I've tested it in. (RFC 5506 allows this,
but requires a SDP attribute for enabling it.)

Signed-off-by: Martin Storsjö <martin@martin.st>
2013-01-08 17:48:14 +02:00
compat build: Plan 9 support 2012-10-23 12:01:18 +01:00
doc lavr: add a public function for setting a custom channel map 2013-01-07 21:49:06 -05:00
libavcodec Drop Snow codec 2013-01-06 16:30:02 +01:00
libavdevice build: Avoid detecting bogus components named 'x' 2013-01-03 15:11:25 +02:00
libavfilter Drop unnecessary 'l' length modifier when printfing double values. 2012-12-31 11:20:45 +01:00
libavformat rtpdec: Support sending RTCP feedback packets 2013-01-08 17:48:14 +02:00
libavresample lavr: log channel conversion description for any-to-any functions 2013-01-07 21:49:07 -05:00
libavutil x86: ABS1: port to cpuflags 2013-01-06 13:57:01 +01:00
libswscale swscale: fix NULL checking in sws_alloc_context() 2013-01-04 20:44:00 -05:00
presets presets: spelling error in libvpx 1080p50_60 2011-10-22 00:28:56 +02:00
tests Drop Snow codec 2013-01-06 16:30:02 +01:00
tools miscellaneous typo fixes 2012-12-21 00:18:34 +01:00
.gitignore doxygen: Build Doxygen documentation in the doc/ subdirectory 2012-10-23 20:25:30 +02:00
arch.mak arm: rename ARMVFP config symbol to VFP 2012-12-07 16:54:04 +00:00
avconv.c avconv: use new options parser. 2012-12-18 20:14:54 +01:00
avconv.h avconv: use new options parser. 2012-12-18 20:14:54 +01:00
avconv_filter.c cmdutils: add a macro to simplify grow_array() calls. 2012-12-18 20:11:06 +01:00
avconv_opt.c cmdutils: pass number of groups to split_commandline(). 2012-12-19 22:13:41 +01:00
avplay.c avplay: Do not use removed av_get_int() 2012-11-29 10:52:23 +01:00
avprobe.c avprobe: also output dar/par if only defined in stream 2013-01-04 12:55:58 +01:00
avserver.c avserver: replace av_read_packet with av_read_frame 2012-11-15 18:04:53 +01:00
Changelog finalize changelog for version 9 2013-01-05 00:20:33 +01:00
cmdutils.c cmdutils: update copyright year to 2013 2013-01-03 13:35:12 +02:00
cmdutils.h cmdutils: pass number of groups to split_commandline(). 2012-12-19 22:13:41 +01:00
cmdutils_common_opts.h cmdutils: extend -h to allow printing codec details. 2012-08-19 19:22:08 +02:00
common.mak build: fix 'clean' target 2012-12-10 17:23:53 +00:00
configure Drop Snow codec 2013-01-06 16:30:02 +01:00
COPYING.GPLv2 Rename COPYING.GPL --> COPYING.GPLv2 and COPYING.LGPL --> COPYING.LGPLv2.1. 2009-06-05 09:51:31 +00:00
COPYING.GPLv3 Add configure option to upgrade (L)GPL to version 3. 2009-06-05 11:04:03 +00:00
COPYING.LGPLv2.1 cosmetics: Delete empty lines at end of file. 2012-02-09 12:26:45 +01:00
COPYING.LGPLv3 Add configure option to upgrade (L)GPL to version 3. 2009-06-05 11:04:03 +00:00
CREDITS partially rename FFmpeg to Libav 2011-03-16 21:54:39 +01:00
INSTALL doc: clarify configure features 2011-04-07 02:54:12 +02:00
library.mak build: fix 'clean' target 2012-12-10 17:23:53 +00:00
LICENSE doc: Clarify licensing issues arising from external libraries 2012-08-12 13:28:58 +02:00
Makefile build: fix 'clean' target 2012-12-10 17:23:53 +00:00
README cosmetics: fix dashed line length after 070c5d0 2011-03-28 09:53:40 +02:00
RELEASE Prepare for 10_alpha1 Release 2013-01-06 16:23:12 +01:00
version.sh Drop git- prefix from version labels 2011-06-19 19:41:23 +01:00

README 

Libav README
------------

1) Documentation
----------------

* Read the documentation in the doc/ directory.

2) Licensing
------------

* See the LICENSE file.