a gray channel in exr, is named Y
we admit that the file need to be interpreted as gray
only if no other channel match (except alpha)

to manage RGB and Y in the color conversion part of decode_block,
the color processing is now made with a for loop.
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

The new HDCD filter really does nothing to show that it is working or
that HDCD control information was even detected in the stream. This
patch collects information about the decode, like which features were
used, and reports it to the user at the end.

Also,
* Fixes low-level gain adjustment
* Updates the documentation
Signed-off-by: Burt P <pburt0@gmail.com>
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Gray encoding crashes with libx265 <= 84, so check the library version.

H264ParamSets has its SPS/PPS stored raw (SODB) and needs to be
converted to NAL units before sending them to MediaCodec.

This patch adds the missing convertion of the SPS/PPS from SOBP to RBSP
which makes the resulting NAL units correct.

Fixes codec initialization on Nexus 4 and Nexus 7.

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

This should avoid long loops
related to CID1361958
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

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

Fixes ticket #5691.

About 10% faster.
Signed-off-by: James Almer <jamrial@gmail.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>

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

Visual Studio 2015 Update 3 introduced a new SSA optimizer, however
it unfortunately causes miscompilations. Until it is fixed, the new
optimizations are disabled and should be re-checked on subsequent
compiler releases.

Fixes recent FATE failure of fate-lavf-pam on VS2015.

Reviewed-by: Ronald S. Bultje <rsbultje@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>

The default value of -1 indicates that ffmpeg should determine the channel
mapping automatically, which was the behavior before this commit.

Unless the -mapping_family argument is provided, behavior is unchanged.
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

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

The code is documented as to require 8byte alignment
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

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

Fixes use of freed memory
Should fix valgrind failures of fate-h264-skip-nointra

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

Changed by committer to ensure context_initialized is reset
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

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

* commit '6e92181b':
  h264: pass just the PPS to get_chroma_qp()
Merged-by: Clément Bœsch <clement@stupeflix.com>

* commit 'd1f539c9':
  h264: merge the two reinit blocks in slice_header_parse()
Merged-by: Clément Bœsch <clement@stupeflix.com>

* commit '3fba16ec':
  h264: factor starting a new field out of parsing the slice header
Merged-by: Clément Bœsch <clement@stupeflix.com>

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

Based-on: patch by James Almer
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

This fixes part of Ticket5676
This fixes kodi, mpv, chromium and ffplay build against 3.0 and linked to 3.1

This is a similar ABI fix to 1eb43af1

Approved-by: BBB
Approved-by: jamrial
Approved-by: BtbN
Approved-by: nevcairiel
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

This ensures the AVStream->codec entry is kept in sync when new streams are
discovered mid-playback or changes to the context occur from other sources.

Fixes trac 5678.
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

This fixes part of Ticket5676
This fixes kodi, mpv, chromium and ffplay build against 3.0 and linked to 3.1

This is a similar ABI fix to 1eb43af1

Approved-by: BBB
Approved-by: jamrial
Approved-by: BtbN
Approved-by: nevcairiel
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

fix ticket #5674

the size of data to process in piz_uncompress, is now calc
using the pixel type of each channel.

the data reorganization, alos take care about the size of
each channel
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

This patch addresses Trac ticket #5570. The optimized functions are in file
libswscale/ppc/input_vsx.c. Each optimized function name is a concatenation of the
corresponding name in libswscale/input.c with suffix _vsx.
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Github: Closes #222

* commit 'bec99338':
  h264: postpone generating the implicit MMCOs
Merged-by: Clément Bœsch <clement@stupeflix.com>

* commit '2d410ebb':
  h264: decode the MMCOs into per-slice contexts
Merged-by: Clément Bœsch <clement@stupeflix.com>

The MBS only flag was not taken into account when checking macroblock dimensions.
Also removes the unneeded check in init_dimensions for slices.

In order to be able to make SPS const in H264ParamSets,
modify decode_scaling_matrices so that it returns if the scaling
matrix are present in the SPS, instead of altering the input SPS
structure.