Cycle counts for large MCs (old -> new on ped1080p.webm, mx!=0&&my!=0):
16x8:    876 ->   870  (0.7%)
16x16:  1444 ->  1435  (0.7%)
16x32:  2784 ->  2748  (1.3%)
32x16:  2455 ->  2349  (4.5%)
32x32:  4641 ->  4084 (13.6%)
32x64:  9200 ->  7834 (17.4%)
64x32:  8980 ->  7197 (24.8%)
64x64: 17330 -> 13796 (25.6%)
Total decoding time goes from 9.326sec to 9.182sec.

Sub8x8 speed (w/o dc-only case) goes from ~750 cycles (inter) or ~735
cycles (intra) to ~415 cycles (inter) or ~430 cycles (intra). Average
overall 16x16 idct speed goes from ~635 cycles (inter) or ~720 cycles
(intra) to ~415 cycles (inter) or ~545 (intra) - all measurements done
using ped1080p.webm.

The reference map is never used in such cases, but we accidently copied
it anyway. This could cause crashes if this map has not yet been
allocated. Fixes trac ticket 3188.
Reviewed-by: Clément Bœsch <u@pkh.me>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes trac ticket 3228.
Reviewed-by: Clément Bœsch <u@pkh.me>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Reviewed-by: Nicolas George <george@nsup.org>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This occurs when muxing E-AC-3.
Signed-off-by: Peter Ross <pross@xvid.org>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This permits H264, AAC, AAC-LATM muxing.

Fixes ticket #536.
Signed-off-by: Peter Ross <pross@xvid.org>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Peter Ross <pross@xvid.org>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

The new name is more explicit.

The zmq context is not a valid log context. Fix crash.

Fixes use of uninitialized memory
Fixes part of msan_uninit-mem_7fa0d8c8bd58_8417_sh3.ape
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes assertion failure
Fixes part of msan_uninit-mem_7fa0d8c8bd58_8417_sh3.ape
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

There seems to be nothing that sets coded_frame
also av_free is wrong
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes use of uninitialized data
Fixes: msan_uninit-mem_7f883205ce82_15_0001010100.iss
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes ticket #2835.
Signed-off-by: Peter Ross <pross@xvid.org>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

* qatar/master:
  lavu: fix typo in documentation.

See: e5306115Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '57ead844':
  doc: fix link to the ISC license text in the developer documentation.
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '6c0e8351':
  doc: fix a coding style error in the developer documentation.
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes use of uninitialized data
Fixes: msan_uninit-mem_7fd85b654950_4005_because.wv
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Ivan Kalvachev <ikalvachev@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

* qatar/master:
  vc1: Fix intensity compensation performance regression

Conflicts:
	libavcodec/vc1.c

See: ed5bed41Merged-by: Michael Niedermayer <michaelni@gmx.at>

this allows seperate installation of shared libs that should not conflict with
whatever is already installed.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

ffmpeg: use timestamp from before and after the decoder to detect backward moving dts for discontinuity detection

This should make discontinuity detection more robust and detect
more cases. Timestamps after the decoder can be delayed due to threads,
timestamps before can be missing

no testcase available/known
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This fixes an assertion failure and regression and restores previous behaviour
Fixes Ticket3197

An alternative would be to fail hard in this case and refuse to mux such data.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Introduced by 28243b0d

Intensity compensation is always used once it was encountered, because
v->next_use_ic is never set back to zero.

Reset v->next_use_ic, when resetting v->next_luty/uv.
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fix https://trac.ffmpeg.org/ticket/3204

The problem was that intensity compensation was always used once it was
encountered. This is because v->next_use_ic was never set back to zero.
To fix this, when resetting v->next_luty/uv, also reset v->next_use_ic.

This improved (restored) performance by 85% when decoding
http://bit.ly/bbbwmvSigned-off-by: Michael Niedermayer <michaelni@gmx.at>

* qatar/master:
  hevc: move DSP declarations from hevc.h into hevcdsp.h

Conflicts:
	libavcodec/hevc.h
	libavcodec/hevcdsp.c
	libavcodec/hevcdsp.h

See: c8dd048aMerged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'be7c3231':
  Add a libwebp encoder

Conflicts:
	Changelog
	doc/encoders.texi
	doc/general.texi
	libavcodec/version.h
	libavformat/img2enc.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>