For idct16, only when called from a adst16x16 variant, so impact is
minor. For idct32, for all, so relatively major impact.

They all overflow in various samples that are considered valid input.

avcodec/mpegvideo: Fix null pointer dereference with grayscale decoding with mpeg2_field_encoding.ts
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>

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 Ticket4542
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

Fixes ticket #4030.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

This was introduced in cde6e328Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

1.Loongson now have two series CPU supported MMI(Multi-Media Instruct).
  Loongson-3 designed multi-core have good performance in decoding.
  Loongson-2's support is comming soon.
2.Replaced loongson with loongson2 and loongson3.
Signed-off-by: ZhouXiaoyong <zhouxiaoyong@loongson.cn>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

APIC tags always have a description. Tag writers obviously leave it
empty if there is no description. In this case, libavformat would export
"" as title. Do not set the title instead.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

AV_PIX_FMT_GRAY8/16 are considered YUV formats, and the color_range is
not set - so the API user will have to assume limitted range. (Unless
the API user adds a special-case for the PNG decoder.)

Just export the correct range - full range.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

Signed-off-by: James Almer <jamrial@gmail.com>

Signed-off-by: James Almer <jamrial@gmail.com>

Fix alpha position error for edge blocks of odd-dimensioned frames
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>

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

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

Image dimensions were rounded down causing rows to wrap early if dimensions were not a multiple of 4.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avcodec/mips: MSA (MIPS-SIMD-Arch) optimizations for HEVC uni copy, uni horizontal and uni vertical mc functions
Signed-off-by: Shivraj Patil <shivraj.patil@imgtec.com>
Reviewed-by: Nedeljko Babic <Nedeljko.Babic@imgtec.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This allows the removal of a few branches.

Before:
lavu       RIPEMD-160   size: 1048576  runs:   1024  time:    7.052 +- 0.010

After:
lavu       RIPEMD-160   size: 1048576  runs:   1024  time:    6.865 +- 0.015
Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Reviewed-by: "Ronald S. Bultje" <rsbultje@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Reviewed-by: "Ronald S. Bultje" <rsbultje@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

* rbultje/vp9-profile23-wip:
  libvpxdec: add 440 pixfmts.
  vp9: add profile 2/3 fate tests.
  vp9: add inter-frame profile 2/3 suport.
  vp9: add keyframe profile 2/3 support.
  vp9: parse profile 2/3 bitdepth in frame header.
  vp9: add profile 2/3 to exported profiles.
  fate: add/update reference files for 440 addition.
  swscale: add yuv440p10/12 pixfmts.
  lavc: add yuv440p10/12 formats to aligned pixfmt list.
  lavu: add yuv440p10/12 pixfmts.
Merged-by: Michael Niedermayer <michaelni@gmx.at>

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