Adding mastering display metadata struct to avutil. The mastering display metadata contains information
about the mastering display color volume (SMPTE 2086:2014).

This info comes from HEVC in the SEI_TYPE_MASTERING_DISPLAY_INFO and is soon to be included in MKV:
https://mailarchive.ietf.org/arch/search/?email_list=cellar&gbt=1&index=sZyfPTM-QY69P-0omfOIiTN622o
so it is similar to SEI FPA / stereo_mode in MKV and as such this patch follows how AVStereo3D is implemented.

I'll add support to HEVC in a follow-up (and MKV when spec is approved).
Signed-off-by: Neil Birkbeck <neil.birkbeck@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

This patch corrects the colors of the 2 and 4 bpp palettes.
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Requested by Andy E, fixes bug 687.

* commit '7570c9e0':
  swfdec: support compressed swf
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '34d45b36':
  asfdec: Fix typo in comment
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '40d43d25':
  APIchanges: Add missing av_pix_fmt_get_chroma_sub_sample entry
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '73c8c034':
  arm: Fix vfp dead code elimination with have_vfp_vm
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'fec76cd4':
  checkasm: Check register clobbering on aarch64
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '26ec75ae':
  checkasm: Check register clobbering on arm
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'fa463aa8':
  avpacket: fix size check in packet_alloc
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '06628137':
  asfdec: Remove unused function parameters
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '2aec600a':
  asfdec: reject size > INT64_MAX in asf_read_unknown
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'c69461d7':
  asfdec: only set asf_pkt->data_size after sanity checks
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'd1cd20e4':
  qsvenc: split encoding frames and reading from the async FIFO
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'a6259a6e':
  qsvenc: properly handle the warning from MFXVideoCORE_SyncOperation
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '63f7f8d1':
  avconv: Drop an impossible check
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '7ebf1b4a':
  avconv: Simplify poll_filters() return value check
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

The option became too aggressive with GCC 6, generating nearly 500
warnings from static const variables defined in assorted headers
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: James Almer <jamrial@gmail.com>

Fixes out of array access
Fixes: aaa479088e6fb40b04837b3119f47b04/asan_heap-oob_e38c68_8576_9d653078b2470700e2834636f12ff557.tga

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Paul B Mahol <onemda@gmail.com>

This can overread (either before start or beyond end) of the buffer in
Nx1 (i.e. height=1) images.

Fixes mozilla bug 1240080.

Match the use of AV_PIX_FMT_PAL8 for 1-bit QuickTime Animation in
lavc/qtrle. To reiterate, 1-bit video is not necessary black & white in
QuickTime, merely bi-level. The two colors can be any color. The palette,
either included in the sample description, or the default Macintosh
palette (black & white for 1-bit video) will be set in lavf/qtpalette.
See the QuickTime File Format Specification for details.
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Paul B Mahol <onemda@gmail.com>

Fixes out of array access
Fixes: 83aedfb29af669c4d6e10f1bfad974d2/asan_heap-oob_1ab42fe_4984_9f6ec14462f8d8a00ea24b320572a963.tif

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Avoids misdetection of MPEG (B-)frames.

Reviewed-by: Michael Bradshaw

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes: memleak
Fixes: 6b343214a0c12d94c1ea0ae9c3102dba/signal_sigsegv_262857d_8792_71ba605ad9ca9068b8218a6ce3628c25.mov

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes compilation with --disable-fft.

It seems the previous tables where calculated with 32bit integers ignoring
overflows.
Also check for the max qindex, the value is choosen so that the qfactor/offset
fit in int32.

Fixes: 070b7914fd5dfe8f93248bea71363410/asan_static-oob_c8d034_2764_258e20f4a3c79158aecddb61a833d756.drc
Fixes out of array reads

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

No longer needed since previous commit

TNS was computing filter coefficients incorrectly for short windows
due to a few coefficient addressing bugs. Fixing them fixes lots of
instability with transients (short windows).

I/S energy, especially when it comes to phase cancellations,
needs to use signed coefficients as input, yet it was using
abs'd coefficients. That was a slight bug.

Make sure to properly enforce maximum scalefactor delta in PNS
and I/S, not as an absolute range but relative to the previous
and first scalefactor, the latter important since PNS uses an
implicit inicial scalefactor derived from the global gain, and
encoded in a different way, which makes a big difference in the
allowed range.

The sample factor must be the same for both 8- and 10-bit functions chosen
otherwise the output will be incorrect.

Around 25% faster than the ssse3 version.

Around 35% faster than the avx version.
Signed-off-by: Henrik Gramner <henrik@gramner.com>