fork() is never used conditionally.

It should be sys/soundcard.h nowadays.

libgsm never installed more than a single header, the headers installed into
the gsm/ subdirectory by some distros are private. Who started this nonsense
is a mystery, but it got cargo-culted around ever since.

We already rely on just mmap() in other places.

It is detected as a part of the ID3D11VideoDecoder check.

It is detected as a part of the libdl check.

The variable lists are for variables whose values end up in output files.

This proprietary Unix flavor dropped from the face of the earth more
than a decade ago. Nothing of value was lost.

Build h2645_parse.o with it, as every hevc_ps dependency also needs it.
This is more in line with h264's h264parse module.
Signed-off-by: James Almer <jamrial@gmail.com>

ret is 0 by default.
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>

Removes the extra code to preserve global CFLAGS.
Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Diego Biurrun <diego@biurrun.de>

This helper is split off check_pkg_config(), setting only the pkg CFLAGS
and extralibs. This is useful for checks that do not require or do not
benefit from setting global CFLAGS.
Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Diego Biurrun <diego@biurrun.de>

It exists as an alias for string.h in most C libraries, so usually this
line is harmless.

Should improve the performance on multiple transcoding from a single
source.

It is needed to have the calls to MFXJoinSession succeed.

Signed-off-by: Martin Storsjö <martin@martin.st>

Use the appropriate metadata filter for each codec - in the absence of any
options to modify the stream, the output bitstream should be identical to
the input (though the output file may differ in padding).

All tests use conformance bitstreams, the MPEG-2 streams are newly added
from the conformance test streams
<http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_IEC_13818-4_2004_Conformance_Testing/Video/>

This fixes redirects, where the original redirect response indicated
support for compression, while the actual redirected content didn't.
Signed-off-by: Martin Storsjö <martin@martin.st>

Tested with the alphaconformanceG sample.

Bug-Id: 1073

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Sean McGovern <gseanmcg@gmail.com>

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

The filter supports two inputs and (implicitly) scaling the second input
during composition, unlike the software overlay.

The code has been separated into common interface and qsv overlay
implementation. The common part mainly creates the qsv session and
manages the surface which is nearly the same for all qsv filters.
So the qsvvpp.c/qsvvpp.h API can be used by other QSV vpp filters
to reduce code redundancy.

Usage:
 -hwaccel qsv -c:v mpeg2_qsv -r 25 -i in.m2v -hwaccel qsv -c:v h264_qsv
 -i in.h264 -filter_complex
 "overlay_qsv=eof_action=repeat:x=(W-w)/2:y=(H-h)/2"  -b 2M -maxrate 3M
 -c:v h264_qsv -y out.h264

Two inputs should have different sizes otherwise one will be completely
covered or you need to scale the second input as follows:
  -hwaccel qsv -c:v mpeg2_qsv -r 25 -i in.m2v -hwaccel qsv -c:v h264_qsv
  -i in.h264 -filter_complex
  "overlay_qsv=w=720:h=576:x=(W-w)/2:y=(H-h)/2" -b 2M -maxrate 3M -c:v
  h264_qsv -y out.h264
Signed-off-by: ChaoX A Liu <chaox.a.liu@gmail.com>
Signed-off-by: Zhengxu Huang <zhengxu.maxwell@gmail.com>
Signed-off-by: Andrew Zhang <huazh407@gmail.com>
  Change-Id: I5c381febb0af6e2f9622c54ba00490ab99d48297
Signed-off-by: Maxym Dmytrychenko <maxim.d33@gmail.com>

Add common filters of the qsv vpp features including scale,denosie,
deinterlace,frc,crop and procAmp.

Performance will be significantly reduced in the test if using cascade
mode just like qsv framerate + qsv scale + qsv deinterlace + qsv denoise in
separated way no matter in system or video memmory cases.
And the code is so redundant because so much the same just as session and
surface's creation and management.
So we add a common qsv filter.

Usage:
-hwaccel qsv -c:v h264_qsv -r 25 -i in -vf
vpp_qsv=w=iw/2:h=400:deinterlace=1:framerate=60:detail=50:denoise=50
-b 2M -maxrate 3M -c:v h264_qsv -y out.h264
Signed-off-by: ChaoX A Liu <chaox.a.liu@gmail.com>
Signed-off-by: Zhengxu Huang <zhengxu.maxwell@gmail.com>
Signed-off-by: Andrew Zhang <huazh407@gmail.com>
Change-Id: I130392ce722138c209ab658c5f03f0009b6e8024
Signed-off-by: Maxym Dmytrychenko <maxim.d33@gmail.com>

It must be freed using avio_context_free() starting with commit
99684f3a.
Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Previously in the mpeg2_metadata filter.  Also adds a test.

The bracketing was wrong - '-' binds before '<<'.  This would
previously incorrectly reject the streams in the WP_A and WP_B
conformance tests.

This should be ticks, not time_scale steps - it was wrong for all
framerates not a multiple of 1/2.

This reverts commit a14a12ca.

The CTU size is always 32x32; the surface size is what actually sets
the desired property, and it is already correct.

Whether the udu string should be freed depends on whether the SEI it
gets added to was created internally by cbs or externally by the bsf.
The current code frees it twice in the former case.

Remove any trailing zeroes from H.26[45] NAL units at the same time.

Only on Windows the software plugin is available.
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>