These directories are not just for object files.

SRT API Documentation:
This flag is superfluous if both parties are at least version 1.3.0
(this shall be enforced by setting this value to SRTO_MINVERSION if
you expect that it be true) and therefore support HSv5 handshake,
where the SRT extended handshake is done with the overall handshake
process.

This flag is however obligatory if at least one party may be using
SRT below version 1.3.0 and does not support HSv5.

Fixes checkasm errors after adding the h264 deblock tests.

The "new" entry point actually has existed since OpenH264 1.4 in
2015 and is the the recommended decoding entry point.

The name of this function, DecodeFrameNoDelay, is rather backwards
considering that it doesn't return the latest decoded frame immediately,
but actually does proper delaying and reordering of frames.
Signed-off-by: Martin Storsjö <martin@martin.st>

Add my neon asm from x264 relicensed under the LGPL 2.1 or later. Ported
(x264 uses nv12 chroma) and optimized.

Cycle count for checkasm --bench on a Snapdragon 820e:
h264_h_loop_filter_luma_intra_8bpp_c: 60.0
h264_h_loop_filter_luma_intra_8bpp_neon: 54.2
h264_v_loop_filter_luma_intra_8bpp_c: 148.3
h264_v_loop_filter_luma_intra_8bpp_neon: 73.8
h264_h_loop_filter_chroma_intra_8bpp_c: 27.8
h264_h_loop_filter_chroma_intra_8bpp_neon: 21.4
h264_h_loop_filter_chroma_mbaff_intra_8bpp_c: 15.8
h264_h_loop_filter_chroma_mbaff_intra_8bpp_neon: 15.7
h264_v_loop_filter_chroma_intra_8bpp_c: 45.8
h264_v_loop_filter_chroma_intra_8bpp_neon: 17.3

Exit as soon as possible if no filtering will be done.

Improves the checkasm --bench cycle count on a Snapdragon 820e:
h264_h_loop_filter_luma_8bpp_c:      72.4 ->  72.5
h264_h_loop_filter_luma_8bpp_neon:   97.1 ->  56.3
h264_v_loop_filter_luma_8bpp_c:     174.0 -> 173.5
h264_v_loop_filter_luma_8bpp_neon:   62.9 ->  60.9
h264_h_loop_filter_chroma_8bpp_c:    30.2 ->  30.3
h264_h_loop_filter_chroma_8bpp_neon: 51.6 ->  25.7
h264_v_loop_filter_chroma_8bpp_c:    57.3 ->  57.3
h264_v_loop_filter_chroma_8bpp_neon: 28.0 ->  24.0

As .rodata isn't one of the default created sections for COFF, it was
created as a read-write data section. By using the default .rdata
section name for COFF, it automatically becomes a read-only data section.
The existing ".section .rodata" works as intended for ELF though.

This is based on an original patch and diagnose by Tom Tan
<Tom.Tan@microsoft.com>.
Signed-off-by: Martin Storsjö <martin@martin.st>

Dav1dPictures contain more than one buffer reference, so we're forced to use the
API properly to free them all.
Signed-off-by: James Almer <jamrial@gmail.com>

Thanks to Kostya for digging it out and telling me.

The color fields were moved to another struct, and a way to propagate
timestamps and other input metadata was introduced, so the packet
fifo can be removed.

Add support for 12bit streams, an option to disable film grain, and
read the profile from the sequence header referenced by the ouput
picture instead of guessing based on output pix_fmt.
Signed-off-by: James Almer <jamrial@gmail.com>

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

Add VDENC(lowpower mode) support for QSV h264 and HEVC

It's an experimental function(like lowpower in vaapi) with
some limitations:
- CBR/VBR require HuC which should be explicitly loaded via i915
module parameter(i915.enable_guc=2 for linux kerner version >= 4.16)
- HEVC VDENC was supported >= ICE LAKE

use option "-low_power 1" to enable VDENC.
Signed-off-by: Linjie Fu <linjie.fu@intel.com>

Originally written by Ronald S. Bultje, with fixes, optimizations and
improvements by James Almer.
Signed-off-by: James Almer <jamrial@gmail.com>

Based on ab839054 by Luca Barbato.
Signed-off-by: James Almer <jamrial@gmail.com>

Based on 7471352f by Luca Barbato.
Signed-off-by: James Almer <jamrial@gmail.com>

libx264 does have a field for opaque data to pass along with frames
through the encoder, but it is a pointer, while the libavcodec
reordered_opaque field is an int64_t. Therefore, allocate an array
within the libx264 wrapper, where reordered_opaque values in flight
are stored, and pass a pointer to this array to libx264.

Update the public libavcodec documentation for the AVCodecContext
field to explain this usage, and add a codec capability that allows
detecting whether an encoder handles this field.
Signed-off-by: Martin Storsjö <martin@martin.st>

This was marked as deprecated (but only in the doxygen, not with an
actual deprecation attribute) in 81c623fa in 2011, but was
undeprecated in ad1ee5fa.
Signed-off-by: Martin Storsjö <martin@martin.st>

Support for it was apparently never in the codebase, and the enum
value was recently removed from the public headers [1]

[1] https://aomedia.googlesource.com/aom/+/f1570f0c2f70832dd170285f8de60bd2379c8efaSigned-off-by: James Almer <jamrial@gmail.com>

Revert "decode: copy the output parameters from the last bsf in the chain back to the AVCodecContext"

This reverts commit 662558f9.

The avcodec_parameters_to_context() call was freeing and reallocating
AVCodecContext->extradata, essentially taking ownership of it, which according
to the doxy is user owned. This is an API break and has produces crashes in
some library users like Firefox.
Revert until a better solution is found to internally propagate the filtered
extradata back into the decoder context.
Signed-off-by: James Almer <jamrial@gmail.com>

Keep alignment with vaapi mjpeg encoder.
Signed-off-by: Zhong Li <zhong.li@intel.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Currently qsv (m)jpeg encoding is broken.
Regression introducing by the commit(id: c1bcd3): fix async support,
which requires the minimum async_depth to be 1, instead previous zero.
But the default async_depth of qsv (m)jpeg encoding is still initialized
(mostly) as zero.

This patch also abviously improves qsv (m)jpeg encoding performance
due to the default async_depth is changed to 4.
Signed-off-by: Zhong Li <zhong.li@intel.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Prior to Xcode 9.3, the clang built-in assembler didn't support
altmacro, and gas-preprocessor was used for assembling for arm/darwin.

For thumb functions, gas-preprocessor took care of adding the .thumb_func
directives, but when now being able to assemble without gas-preprocessor,
we need to add these directives ourselves.
Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Support for it was apparently never in the codebase, and the enum
value was recently removed from the public headers [1]

[1] https://aomedia.googlesource.com/aom/+/df4ffb73140fe31bebdabd17c1a7b53721e74838Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Based on hevc_parser code. This prevents repeated unnecessary allocations
and frees on every packet processed by the bsf.
Reviewed-by: Jun Zhao <mypopydev@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

There is no need to allocate a new packet for it.
Reviewed-by: Mark Thompson <sw@jkqxz.net>
Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Reviewed-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Use of this function can save unnecessary malloc operation
in bitstream filter.
Signed-off-by: Jan Sebechlebsky <sebechlebskyjan@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Variable 'ret' hasn't been initialized，thus introducing a random
hwupload failure regression due to qsv session uninitialized.
Signed-off-by: Zhong Li <zhong.li@intel.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Fixes high memory usage and prevents over allocation of the frames via
proper unref.

Can be checked as:
-hwaccel qsv -c:v h264_qsv -i ../h264-conformance/CANL2_Sony_E.jsv -c:v
h264_qsv -b:v 2000k -y qsv.mp4

MSVC expands the preprocessor directives differently, making the
version check fail in the previous form.

Clang can warn about this with -Wexpansion-to-defined (not currently
enabled by default):
warning: macro expansion producing 'defined' has undefined behavior [-Wexpansion-to-defined]
Signed-off-by: Martin Storsjö <martin@martin.st>

This is a new feature in FDK v2.
Signed-off-by: Martin Storsjö <martin@martin.st>