Fixes the following gcc warning:
libavcodec/bitstream_filter.c:39:12: warning: return discards 'const' qualifier from pointer target type

According to EBU tech 3285 supplement 3 the dwPosPeakOfPeaks field
should contain the absolute position to the maximum audio sample value,
but the current implementation writes the relative peak frame index
instead.

Fix the issue by writing the "unknown" value (-1) for now until the
feature is implemented correctly.

Previous version reviewed-by: Peter Bubestinger <p.bubestinger@av-rd.com>
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Tobias Rapp <t.rapp@noa-archive.com>

This prevents potential ABI issues with GetByteContext.
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>

This prevents potential ABI issues with GetBitContext.
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>

Signed-off-by: Zhong Li <zhong.li@intel.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

This patch uses dithering in DITHER_COPY macro only if
it was not used option '-sws_dither none'.
With option '-sws_dither none' it uses downshift.

For human eye dithering is OK, for video codecs not necessarily.
If user don't want to use dithering, we should respect that.
Signed-off-by: Mateusz Brzostek <mateuszb@poczta.onet.pl>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Use immediate unsigned saturation for clip to max saving one vector register.
Signed-off-by: Kaustubh Raste <kaustubh.raste@imgtec.com>
Reviewed-by: Manojkumar Bhosale <Manojkumar.Bhosale@imgtec.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Replace generic with block size specific function.
Load the specific destination bytes instead of MSA load and pack.
Signed-off-by: Kaustubh Raste <kaustubh.raste@imgtec.com>
Reviewed-by: Manojkumar Bhosale <Manojkumar.Bhosale@imgtec.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Remove loops and unroll as block sizes are known.
Signed-off-by: Kaustubh Raste <kaustubh.raste@imgtec.com>
Reviewed-by: Manojkumar Bhosale <Manojkumar.Bhosale@imgtec.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

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

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

Technically _tzcnt* intrinsics are only available when the BMI
instruction set is present. However the instruction encoding
degrades to "rep bsf" on older processors.

Clang for Windows debatably restricts the _tzcnt* instrinics behind
the __BMI__ architecture define, so check for its presence or
exclude the usage of these intrinics when clang is present.

See also:
https://ffmpeg.org/pipermail/ffmpeg-devel/2015-November/183404.html
https://bugs.llvm.org/show_bug.cgi?id=30506
http://lists.llvm.org/pipermail/cfe-dev/2016-October/051034.htmlSigned-off-by: Dale Curtis <dalecurtis@chromium.org>
Reviewed-by: Matt Oliver <protogonoi@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

* commit '26d9b603':
  hevc: Avoid using LOCAL_ALIGNED for 4 byte alignment
Merged-by: James Almer <jamrial@gmail.com>

* commit '163cc67b':
  takdec: Use ISO C printf conversion specifiers where appropriate
  dcadec: remove extra indirection
  hevcdec: Use LOCAL_ALIGNED_* for declaring local variables with alignment
  arm: Always build the hevcdsp_init_arm.c file

This commit is a noop.
Merged-by: James Almer <jamrial@gmail.com>

Signed-off-by: Zhong Li <zhong.li@intel.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

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

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

Enables demuxing of Ambisonics content coded with channel mapping 2
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

* commit '5a969f64':
  jack: Drop support for old (2012) JACK versions
Merged-by: James Almer <jamrial@gmail.com>

* commit '1bd986ed':
  hwcontext: Move NONE to the be the first member of AVHWDeviceType
Merged-by: James Almer <jamrial@gmail.com>

* commit '0b9a237b':
  hevc: Add NEON 4x4 and 8x8 IDCT

[15:12:59] <@ubitux> hevc_idct_4x4_8_c: 389.1
[15:13:00] <@ubitux> hevc_idct_4x4_8_neon: 126.6
[15:13:02] <@ubitux> our ^
[15:13:06] <@ubitux> hevc_idct_4x4_8_c: 389.3
[15:13:08] <@ubitux> hevc_idct_4x4_8_neon: 107.8
[15:13:10] <@ubitux> hevc_idct_4x4_10_c: 418.6
[15:13:12] <@ubitux> hevc_idct_4x4_10_neon: 108.1
[15:13:14] <@ubitux> libav ^
[15:13:30] <@ubitux> so yeah, we can probably trash our versions here
Merged-by: James Almer <jamrial@gmail.com>

This should refer to the existing SPS structure, not the VAAPI sequence
parameter buffer (which is not yet initialised).
Signed-off-by: Jun Zhao <jun.zhao@intel.com>
Signed-off-by: Wang, Yi A <yi.a.wang@intel.com>
Signed-off-by: Mark Thompson <sw@jkqxz.net>

Fixes 256-colour dvb subtitle encoding.

Fixes ticket #6769.

Adds a hunk forgotten in 8a6799d2

Fixes the following warning:
libavfilter/tests/filtfmts.c: In function ‘main’:
libavfilter/tests/filtfmts.c:103:18: warning: assignment discards ‘const’ qualifier from pointer target type

* commit '75ef9154':
  configure: Disable inline assembly for PathScale compilers
Merged-by: James Almer <jamrial@gmail.com>

* commit 'fe6eea99':
  nsvdec: don't ignore the return value of av_get_packet()

This commit is a noop, see
edf1cb7a
8d7ce5cdMerged-by: James Almer <jamrial@gmail.com>

* commit 'd4f3c26b':
  rtmpproto: send swfverify value as swfurl if latter is unused

This commit is a noop, see c0b3781bMerged-by: James Almer <jamrial@gmail.com>

* commit 'd6390090':
  configure: Skip check for inline assembly capabilities when explicitly disabled
Merged-by: James Almer <jamrial@gmail.com>

* commit '083ea876':
  APIchanges: Update bump dates
Merged-by: James Almer <jamrial@gmail.com>

* commit '8c616b3b':
  avplay: Use the named syntax for buffersrc arguments

This commit is a noop, see 251f3987Merged-by: James Almer <jamrial@gmail.com>

* commit '883ce264':
  vf_showinfo: Display spherical properties
Merged-by: James Almer <jamrial@gmail.com>

* commit '3f128fc4':
  vf_showinfo: Simplify reporting stereo3d information
Merged-by: James Almer <jamrial@gmail.com>

* commit '5f90ad99':
  spherical: Change types of bounding and pad to uint32_t

This commit is a noop, see f20bcec4Merged-by: James Almer <jamrial@gmail.com>

* commit '35cf146a':
  lavu: Drop deprecated av_dlog macro
Merged-by: James Almer <jamrial@gmail.com>

* commit '619a433e':
  lavu: Drop deprecated option type
Merged-by: James Almer <jamrial@gmail.com>

* commit 'dd343fd9':
  lavu: Drop deprecated VDPAU pixel formats
Merged-by: James Almer <jamrial@gmail.com>