Inspired by a patch from Martin Storsjö <martin@martin.st>.

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

Avoids a forward-declaration in the following commit.
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

Planes are ordered as the name suggests now.
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

libavcodec/x86/h264_qpel.c:392:785: warning: unused function 'ff_avg_h264_qpel8or16_hv1_lowpass_mmxext' [-Wunused-function]

avplay.c:2928:5: warning: ISO C forbids initialization between function pointer and ‘void *’ [-Wpedantic]

Fixes several warnings of the type
avconv_opt.c:2356:5: warning: ISO C forbids initialization between function pointer and ‘void *’ [-Wpedantic]

This fixes heap-use-after-free detected by AddressSanitizer.
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Handle the internal frame requests, which is required by the HEVC
encoding plugin.
Signed-off-by: Maxym Dmytrychenko <maxym.dmytrychenko@intel.com>

This will allow implementing the allocator more fully, which is needed
by the HEVC encoder plugin with video memory input.
Signed-off-by: Maxym Dmytrychenko <maxym.dmytrychenko@intel.com>

For encoding, this avoids modifying the input surface, which we are not
allowed to do.
This will also be useful in the following commits.
Signed-off-by: Maxym Dmytrychenko <maxym.dmytrychenko@intel.com>

Signed-off-by: Maxym Dmytrychenko <maxym.dmytrychenko@intel.com>

Uploading/downloading data through VPP may not work for some formats, in
that case we can still try to call av_hwframe_transfer_data() on the
child context.
Signed-off-by: Maxym Dmytrychenko <maxym.dmytrychenko@intel.com>

Certain pixel formats (e.g. P8) might not be supported for
download/upload through VPP operations, but can still be used otherwise.
Signed-off-by: Maxym Dmytrychenko <maxym.dmytrychenko@intel.com>

When using GPU surfaces with QSV, one needs to supply a frame allocator,
which will be invoked to pass surface pools to libmfx.
For encoding, this allocator gets invoked not only for the pool of input
frames, but also for a separate pool of (apparently) reconstructed frames
and another pool of MFX_FOURCC_P8, which on Windows needs to return
D3DFMT_P8 D3D surfaces. Those are probably used to store the encoded
bitstream on the GPU.
Signed-off-by: Maxym Dmytrychenko <maxym.dmytrychenko@intel.com>

This format is used internally by the QSV encoder to store the encoded
bitstream.
Signed-off-by: Maxym Dmytrychenko <maxym.dmytrychenko@intel.com>

Signed-off-by: Maxym Dmytrychenko <maxym.dmytrychenko@intel.com>

Fixes a regression introduced in
be630b1eSigned-off-by: Anton Khirnov <anton@khirnov.net>

This is in the same the same vein as 38014692.
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
Signed-off-by: Martin Storsjö <martin@martin.st>

libavcodec/x86/rv40dsp_init.c:97:2: warning: ISO C does not allow extra ‘;’ outside of a function [-Wpedantic]
libavcodec/x86/vp9dsp_init.c:94:40: warning: ISO C does not allow extra ‘;’ outside of a function [-Wpedantic]

In recent lld-link versions, this command prints the version to
stdout, but also prints an error to stderr:

$ lld-link -flavor gnu --version
LLD 4.0.0 (trunk 285641)
lld-link: error: no input files
lld-link: error: target emulation unknown: -m or at least one .o file required
Signed-off-by: Martin Storsjö <martin@martin.st>

This fixes errors like this when building non-pic binaries with armv6
as baseline:

Error: invalid literal constant: pool needs to be closer
Signed-off-by: Martin Storsjö <martin@martin.st>

Can map to any supported software format (using a GPU copy if it
doesn't actually match the surface format underneath).

Takes a frame associated with a hardware context as input and maps it
to something else (another hardware frame or normal memory) for other
processing.  If the frame to map was originally in the target format
(but mapped to something else), the original frame is output.

Also supports mapping backwards, where only the output has a hardware
context.  The link immediately before will be supplied with mapped
hardware frames which it can write directly into, and this filter
then unmaps them back to the actual hardware frames.

Adds the new av_hwframe_map() function, which allows mapping between
hardware frames and normal memory, along with internal support for
implementing it.

Also adds av_hwframe_ctx_create_derived(), for creating a hardware
frames context associated with one device using frames mapped from
another by some hardware-specific means.

libavutil/x86/float_dsp_init.c(144) : warning C4028: formal parameter 1 different from declaration
libavutil/x86/float_dsp_init.c(144) : warning C4028: formal parameter 2 different from declaration

libavcodec/dnxhdenc.c(326) : warning C4028: formal parameter 1 different from declaration
libavcodec/dnxhdenc.c(329) : warning C4028: formal parameter 1 different from declaration

libavcodec/pixblockdsp.c(58) : warning C4028: formal parameter 1 different from declaration
libavcodec/pixblockdsp.c(63) : warning C4028: formal parameter 1 different from declaration
libavcodec/pixblockdsp.c(66) : warning C4028: formal parameter 1 different from declaration

libavcodec/ituh263dec.c(215) : warning C4028: formal parameter 1 different from declaration
libavcodec/ituh263dec.c(215) : warning C4028: formal parameter 2 different from declaration

Broken by e3fb74f7.
Signed-off-by: Diego Biurrun <diego@biurrun.de>

libavcodec/svq3.c:627:29: warning: unused function 'dctcoef_get' [-Wunused-function]