fixes fate on alpha

cherry picked from commit 0a8ce1cbdaff7cd026bcf95ee3787bc7b4c063ee
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This partially reverts 9ce64ba1.

FATE still needs it until its design is updated to the new website
version.

Signed-off-by: db0 <db0company@gmail.com>
Signed-off-by: Clément Bœsch <u@pkh.me>

Fixes part of Ticket3785
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

30000/1001 fps isnt implemented as i dont know which are the correct interleaving parameters,
pointers to the appropriate spec and page are welcome

Fixes Ticket2597
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

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

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

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

When dealing with MVs, both components may be processed at a time.

On Win64, 560 to 539 cycles for derive_spatial_merge_candidates.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

There's a lag of one CTB line for SAO behind deblocking filter, except for
last line. However, once SAO has been completed on a line, all its pixels,
i.e. up to y+ctb_size are filtered and ready to be used as reference.

Without SAO, when deblocking filter finishes a CTB line, only the bottom
bottom 4 pixels may be filtered when next CTB is process by the deblocing.

The await_progess for hevc then checks whether the bottom pixels of a PU
requires access beyond that point, so the reporting should effectively
report up to the the above limits.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

* commit '1a583c0c':
  fdct: Move ppc-specific declarations to a header in the ppc directory
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '5dcc2015':
  simple_idct: Move x86-specific declarations to a header in the x86 directory

Conflicts:
	libavcodec/x86/simple_idct.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '85cabb8d':
  fdct: Move x86-specific declarations to a header in the x86 directory
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'd6e1d371':
  oss_audio: Split muxer and demuxer

Conflicts:
	libavdevice/Makefile
	libavdevice/oss_audio.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Should fix MSVC build

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

Found-by: jamrial
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>

* commit 'e0a2e60c':
  dct-test: Reuse enum idct_permutation_type instead of duplicating it

Conflicts:
	libavcodec/dct-test.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Also add a note about SNDCTL_DSP_GETFMTS which may fail even if OSS is
available.
Signed-off-by: Timothy Gu <timothygu99@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

cherry picked from commit 4a16cb2c70728a55d2fd723aff01b13ea259c4df
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Diego Biurrun <diego@biurrun.de>

cherry picked from commit 243cb99cff727d6a14c32cdff2748f6c255dbaf4
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Based on a patch by contact at iridiummobile ru.
Fixes ticket #3780.

Fixes ticket #3769.

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

- adding one extra pixel all around the frame
- do not copy when SAO is not applied

5% improvement

cherry picked from commit 10fc29fc19a12c4d8168fbe1a954b76386db12d0
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

* commit '913fa85a':
  dct-test: Skip indirection for MMX IDCT permutation
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '9e0b2991':
  x86: dnxhdenc: Eliminate some unnecessary ifdefs
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'b4edbe9a':
  libgsm: Split decoder and encoder

Conflicts:
	libavcodec/libgsmenc.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '8b0dd494':
  idctdsp: prettyprinting cosmetics

Conflicts:
	libavcodec/idctdsp.c
	libavcodec/ppc/idctdsp.c
	libavcodec/x86/idctdsp_init.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'b4987f72':
  idct: Convert IDCT permutation #defines to an enum

Conflicts:
	libavcodec/idctdsp.c
	libavcodec/x86/cavsdsp.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>