doc: Document segment_list_type
rtsp: Factor out fmtp parsing
rtsp: Support misordered fmtp rtpmap

Issue present in Avigilon IP cameras.
hevc: Mark num_bins_in_se as unused

Only its size is actually used. Silence a clang warning.
doc/bitstream_filters: document imxdump

Partially addresses ticket #3198.

Signed-off-by: Lou Logan <lou@lrcd.com>
Tested-by: Dave Rice <dave@dericed.com>
dsputil: Split clear_block*/fill_block* off into a separate context
Merge commit '49a242687cf44f86570b706db3c5912ff06bc6c2'

* commit '49a242687cf44f86570b706db3c5912ff06bc6c2':
  doc: Document segment_list_type

Conflicts:
	doc/muxers.texi

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit 'c9c1e00f95350e7a36b0d05a03939c7f6438e371'

* commit 'c9c1e00f95350e7a36b0d05a03939c7f6438e371':
  rtsp: Factor out fmtp parsing

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit 'c385313d2590fd26e26bb9bdacddef78162ab490'

* commit 'c385313d2590fd26e26bb9bdacddef78162ab490':
  rtsp: Support misordered fmtp rtpmap

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit '869fc416f7c78ed4e397e0208acd1545771c0502'

* commit '869fc416f7c78ed4e397e0208acd1545771c0502':
  hevc: Mark num_bins_in_se as unused

Merged-by: Michael Niedermayer <michaelni@gmx.at>
ppc: Fix the bug of fft for little endian environment on POWER7 and later

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit 'e74433a8e6fc00c8dbde293c97a3e45384c2c1d9'

* commit 'e74433a8e6fc00c8dbde293c97a3e45384c2c1d9':
  dsputil: Split clear_block*/fill_block* off into a separate context

Conflicts:
	configure
	libavcodec/asvdec.c
	libavcodec/dnxhddec.c
	libavcodec/dnxhdenc.c
	libavcodec/dsputil.h
	libavcodec/eamad.c
	libavcodec/intrax8.c
	libavcodec/mjpegdec.c
	libavcodec/ppc/dsputil_ppc.c
	libavcodec/vc1dec.c
	libavcodec/x86/dsputil_init.c
	libavcodec/x86/dsputil_mmx.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/x86/lossless_videodsp: Fix size of values read for left/left_top

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
huffyuv: change statistics initialization

Normally, a Laplace distribution is more typical of the residuals
encoded, but for noisy input, it's both better and simpler to be
safe and use a 1/d^2 distribution. Second hunk could use some
renormalization but it has effectively little impact.

Output size of ffvhuff on various 4:2:0 sequences:
context=0,1/d:    851974   27226   1137281
context=0,1/d²:   619081   25069   1051500
context=0,1/d³:   501983   30454   1290561
context=0,lapl:   500650   31754   1304082

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Support raw dvdsub palette as stored on normal dvd's

This is how the palette is stored on dvd's. Currently
only xbmc passes the palette information to libavcodec
this way.
Check return value of avio_seek and avoid modifying state if it fails

The code still modifies state if the timestamp is not found. Not
sure exactly how to avoid that.
asf hacks
if av_read_packet returns AVERROR_IO, we are done. ffmpeg's codecs might or might not handle returning any completed demuxed packets correctly
added: Ticket #7187, TV Teletext support for DVB EBU Teletext streams
Don't accept mpegts PMT that isn't current