* commit '87c6c786':
  vp8: Change type of stride parameters to ptrdiff_t
Merged-by: James Almer <jamrial@gmail.com>

* commit 'd9d26a36':
  vp56: Change type of stride parameters to ptrdiff_t
Merged-by: James Almer <jamrial@gmail.com>

* commit '6892df92':
  vp3: Change type of stride parameters to ptrdiff_t
Merged-by: Clément Bœsch <u@pkh.me>

* commit '963b3ab1':
  doc: Document FATE option HWACCEL
Merged-by: Clément Bœsch <u@pkh.me>

* commit 'd42809f9':
  av1: Add codec_id and basic demuxing support
Merged-by: Clément Bœsch <u@pkh.me>

* commit '24130234':
  rtpdec_mpeg4: validate fmtp fields

Merged with fixed log message.
Merged-by: Clément Bœsch <u@pkh.me>

* commit '46e3936f':
  configure: Set __MSVCRT_VERSION__to 0x0700 for MinGW
Merged-by: Clément Bœsch <u@pkh.me>

* commit '6755eb5b':
  mss12: validate display dimensions

This commit is a noop, see ee9151b6Merged-by: Clément Bœsch <u@pkh.me>

* commit '33f10546':
  vc1: check that slices have a positive height

This commit is a noop, see e985cfd1Merged-by: Clément Bœsch <u@pkh.me>

* commit '09b23786':
  pcx: use the bytestream2 API for reading from input

This commit is a noop, see 8cd1c0feMerged-by: Clément Bœsch <u@pkh.me>

* commit '221402c1':
  pcx: check that the packet is large enough before reading the header

See 8cd1c0feMerged-by: Clément Bœsch <u@pkh.me>

* commit '15ee419b':
  pcx: properly pad the scanline

This commit is a noop, see d24de459Merged-by: Clément Bœsch <u@pkh.me>

* commit '409d1cd2':
  cook: use the bytestream2 API for reading extradata
Merged-by: Clément Bœsch <u@pkh.me>

* commit 'bba9d8bd':
  qpeg: fix an off by 1 error in the MV check

See dd3bfe3cMerged-by: Clément Bœsch <u@pkh.me>

* commit '796dca02':
  alac: do not return success if nothing was decoded

See e11983bdMerged-by: Clément Bœsch <u@pkh.me>

* commit 'f5d46d33':
  vmnc: check that subrectangles fit into their containing rectangles

See 6ba02602

This merge keeps our condition against w-i and h-j instead of bw and bh.
One may be more correct than the other, but I'm keeping our behaviour
here for safety reasons.

The style and formatting is merged.
Merged-by: Clément Bœsch <u@pkh.me>

* commit '83b92a85':
  golomb: Drop disabled cruft
Merged-by: Clément Bœsch <u@pkh.me>

* commit '014852e9':
  simple_idct: arm: Drop disabled code variant
Merged-by: Clément Bœsch <u@pkh.me>

* commit 'e2b99935':
  simple_idct: x86: Drop disabled IDCT implementation
Merged-by: Clément Bœsch <u@pkh.me>

* commit '7effebde':
  dvbsubdec: Remove disabled, near-duplicate debug code
Merged-by: Clément Bœsch <u@pkh.me>

* commit '93fed46a':
  timefilter: test: Drop some disabled debug cruft
Merged-by: Clément Bœsch <u@pkh.me>

* commit '0e285c2f':
  mpegvideo: Kill some disabled code
Merged-by: Clément Bœsch <u@pkh.me>

* commit 'f2f145f3':
  msmpeg4: Drop disabled debug cruft
Merged-by: Clément Bœsch <u@pkh.me>

* commit 'be1db21b':
  mathops: Drop disabled alternative mid_pred() implementation
Merged-by: Clément Bœsch <u@pkh.me>

* commit 'be3363f6':
  nsv: Drop disabled cruft
Merged-by: Clément Bœsch <u@pkh.me>

* commit 'b53d8c3c':
  mjpegdec: Drop disabled code

The last chunk is replaced with a comment describing the structure.
Merged-by: Clément Bœsch <u@pkh.me>

* commit '34c22a9c':
  faan(i)dct: Kill some disabled code
Merged-by: Clément Bœsch <u@pkh.me>

* commit 'a4b1b5aa':
  wc3movie: Drop unused cruft
Merged-by: Clément Bœsch <u@pkh.me>

* commit '17cb56b3':
  ffv1: Remove broken disabled cruft
Merged-by: Clément Bœsch <u@pkh.me>

* commit 'b96f0ab3':
  h264: Kill broken disabled cruft
Merged-by: Clément Bœsch <u@pkh.me>

* commit '42c4c2d2':
  aac: Drop broken cruft
Merged-by: Clément Bœsch <u@pkh.me>

* commit '263efc09':
  jfdct: Kill broken cruft
Merged-by: Clément Bœsch <u@pkh.me>

* commit 'd9442d13':
  rm: Drop broken disabled cruft
Merged-by: Clément Bœsch <u@pkh.me>

* commit 'dab2034b':
  roqvideoenc: Drop broken disabled cruft
Merged-by: Clément Bœsch <u@pkh.me>

* commit '562bec0e':
  pnm_parser: Drop broken disabled cruft
Merged-by: Clément Bœsch <u@pkh.me>

* commit 'a972fc1c':
  wma: Kill non-compiling disabled cruft

See 0755033fMerged-by: Clément Bœsch <u@pkh.me>

* commit 'aa37d2bf':
  swscale: Kill non-compiling disabled cruft

The isGray() chunk is not merged as an alternative patch actually fixing
the dead code is currently under review on the mailing-list.

The SWS_X chunk is merged, with an additional cosmetic.
Merged-by: Clément Bœsch <u@pkh.me>

* commit 'd5fda00e':
  mpeg4videoenc: Kill non-compiling disabled cruft
Merged-by: Clément Bœsch <u@pkh.me>

* commit 'e4d5b551':
  rangecoder: Kill non-compiling disabled cruft
Merged-by: Clément Bœsch <u@pkh.me>

benchmark:
sse2 10.670s
avx   8.763s
fma3  8.380s
Signed-off-by: Muhammad Faiz <mfcc64@gmail.com>