win32 typically doesn't have unistd.h, so always including it will break
MSVC builds. The usage of those POSIX functions are already guarded by
_WIN32, so use that to guard unistd.h include as well.
When multiple hardwares are available, the default one might not be
Intel Hardware. We can use option vendor_id to choose the required
vendor.
Tested-by: Artem Galin <artem.galin@intel.com>
Signed-off-by: Haihao Xiang <haihao.xiang@intel.com>
User may choose the hardware via option vendor_id when multiple
hardwares are available.
Signed-off-by: Artem Galin <artem.galin@intel.com>
Signed-off-by: Haihao Xiang <haihao.xiang@intel.com>
mfxExtendedDeviceId mightn't be supported in certain configurations of
oneVPL on Linux, so we can't ensure a property filter for
mfxExtendedDeviceId.DeviceID or mfxExtendedDeviceId.VendorID works as
expected. This fixed the issue mentioned in [1]
[1] http://ffmpeg.org/pipermail/ffmpeg-user/2023-October/056983.html
Signed-off-by: Haihao Xiang <haihao.xiang@intel.com>
Gathers are (unsurprisingly) a notable exception to the rule that R-V V
gets faster with larger group multipliers. So roll the function to speed
it up.
Before:
vector_fmul_reverse_fixed_c: 2840.7
vector_fmul_reverse_fixed_rvv_i32: 2430.2
After:
vector_fmul_reverse_fixed_c: 2841.0
vector_fmul_reverse_fixed_rvv_i32: 962.2
It might be possible to further optimise the function by moving the
reverse-subtract out of the loop and adding ad-hoc tail handling.
VK_KHR_PORTABILITY_ENUMERATION_EXTENSION_NAME is required on macOS,
and VK_INSTANCE_CREATE_ENUMERATE_PORTABILITY_BIT_KHR flag should
be set.
Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
When operating on large blocks of data it's common to repeatedly use
an instruction on multiple registers. Using the REPX macro makes it
easy to quickly write dense code to achieve this without having to
explicitly duplicate the same instruction over and over.
For example,
REPX {paddw x, m4}, m0, m1, m2, m3
REPX {mova [r0+16*x], m5}, 0, 1, 2, 3
will expand to
paddw m0, m4
paddw m1, m4
paddw m2, m4
paddw m3, m4
mova [r0+16*0], m5
mova [r0+16*1], m5
mova [r0+16*2], m5
mova [r0+16*3], m5
Commit taken from x264:
6d10612ab0
Signed-off-by: Frank Plowman <post@frankplowman.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
We currently mostly do not empty the MMX state in our MMX
DSP functions; instead we only do so before code that might
be using x87 code. This is a violation of the System V i386 ABI
(and maybe of other ABIs, too):
"The CPU shall be in x87 mode upon entry to a function. Therefore,
every function that uses the MMX registers is required to issue an
emms or femms instruction after using MMX registers, before returning
or calling another function." (See 2.2.1 in [1])
This patch does not intend to change all these functions to abide
by the ABI; it only does so for ff_pixelutils_sad_8x8_mmxext, as this
function can by called by external users, because it is exported
via the pixelutils API. Without this, the following fragment will
assert (on x86/x64):
uint8_t src1[8 * 8], src2[8 * 8];
av_pixelutils_sad_fn fn = av_pixelutils_get_sad_fn(3, 3, 0, NULL);
fn(src1, 8, src2, 8);
av_assert0_fpu();
[1]: https://raw.githubusercontent.com/wiki/hjl-tools/x86-psABI/intel386-psABI-1.1.pdf
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This is cleaner, but it is also a workaround for when
the header exists, but cannot be compiled.
This will happen when the compiler has no inline asm
support.
Possibly the configure check should be improved as well.
There are already several places in the codebase that match desc->name
against "xyz", and many downstream clients replicate this behavior.
I have no idea why this is not just a flag.
Motivated by my desire to add yet another check for XYZ to the codebase,
and I'd rather not keep copy/pasting a string comparison hack.
av_hwframe_transfer_data try with src_ctx first. If the operation
failed with AVERROR(ENOSYS), it will try again with dst_ctx. Return
AVERROR(EINVAL) makes the second step being skipped.
Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
Fixes a validation issue.
The issue is that the function gets called before we've sumitted a frame
for decoding to that context. However, we cannot run queries before
they've been reset, which happens at submission time.
As we'd need to otherwise run a command queue at init-time, just check
if submissions have happened.
Fixes: signed integer overflow: -1028966111 + -1314089526 cannot be represented in type 'int'
Fixes: 63174/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AAC_FIXED_fuzzer-5853273711837184
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Lynne <dev@lynne.ee>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Mapping to ITU-R BS.2051-3 "Sound System J" and ITU-R BS.1196-8 "Channel
Configuration 19".
Signed-off-by: Will Wolcott <wwolcott@netflix.com>
Signed-off-by: James Almer <jamrial@gmail.com>
This layout maps to ITU-R BS.2051-3 "Sound System C" and ITU-R BS.1196-8 "Channel
Configuration 14", and it being the first layout with top layer channels, it's
best to use a different scheme to properly convey the presence and amount of said
channels.
The new name will also be a better fit for the additions in the following commits.
Signed-off-by: James Almer <jamrial@gmail.com>
This eases actual development of the assembly functions, by only
allowing extension instructions within the sections that explicitly
enable them, instead of having all extensions enabled everywhere.
Signed-off-by: Martin Storsjö <martin@martin.st>
When users zero-init'd the struct, or left it as-is, the encode
queue family matched the graphics queue family, which led it to be
incorrectly logged as being used for encode.
This just improves the logging so this isn't printed anymore.
Favour left aligned columns over right aligned columns.
In principle either style should be ok, but some of the cases
easily lead to incorrect indentation in the surrounding code (see
a couple of cases fixed up in the preceding patch), and show up in
automatic indentation correction attempts.
Signed-off-by: Martin Storsjö <martin@martin.st>
Some functions have slightly different indentation styles; try
to match the surrounding code.
libavcodec/aarch64/vc1dsp_neon.S is skipped here, as it intentionally
uses a layered indentation style to visually show how different
unrolled/interleaved phases fit together.
Signed-off-by: Martin Storsjö <martin@martin.st>
Benjamin Cheng
Haihao Xiang
Artem Galin
Rémi Denis-Courmont
Diederik de Haas via ffmpeg-devel
Anton Khirnov
Víctor Manuel Jáquez Leal
Zhao Zhili
James Almer
Henrik Gramner
Andreas Rheinhardt
Reimar Döffinger
Niklas Haas
Martin Storsjö
Michael Niedermayer
Lynne
Will Wolcott
Sean McGovern