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FFmpeg/libavutil/cpu.c

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Move mm_support() from libavcodec to libavutil, make it a public function and rename it to av_get_cpu_flags(). Originally committed as revision 25076 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-09-08 18:07:14 +03:00
/*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
cpu: add a function for querying maximum required data alignment
2017-02-08 10:32:17 +02:00
#include <stddef.h>
Add missing #includes for *INT64_MAX and *INT64_C
2013-11-23 23:32:55 +03:00
#include <stdint.h>
avutil: fix data race in av_get_cpu_flags() Make the one-time initialization in av_get_cpu_flags() thread-safe. The static variable |cpu_flags| in libavutil/cpu.c is read and written using normal load and store operations. These are considered as data races. The fix is to use atomic load and store operations. The fix can be verified by running the libavutil/tests/cpu_init.c test program under ThreadSanitizer: ./configure --toolchain=clang-tsan make libavutil/tests/cpu_init libavutil/tests/cpu_init There should be no warnings from ThreadSanitizer. Co-author: Dmitry Vyukov of Google, who suggested the data race fix. Signed-off-by: Wan-Teh Chang <wtc@google.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2016-12-07 04:16:13 +02:00
#include <stdatomic.h>
Add missing #includes for *INT64_MAX and *INT64_C
2013-11-23 23:32:55 +03:00
Merge commit 'e6bff23f1e11aefb16a2b5d6ee72bf7469c5a66e' * commit 'e6bff23f1e11aefb16a2b5d6ee72bf7469c5a66e': cpu: add a function for querying maximum required data alignment Adapted to work with the arbitrary runtime cpuflag changes av_force_cpu_flags() can generate. Merged-by: James Almer <jamrial@gmail.com>
2017-09-28 03:56:53 +02:00
#include "attributes.h"
Move mm_support() from libavcodec to libavutil, make it a public function and rename it to av_get_cpu_flags(). Originally committed as revision 25076 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-09-08 18:07:14 +03:00
#include "cpu.h"
avutil: Move internal CPU detection function declarations to private header
2013-08-20 18:49:01 +03:00
#include "cpu_internal.h"
Move mm_support() from libavcodec to libavutil, make it a public function and rename it to av_get_cpu_flags(). Originally committed as revision 25076 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-09-08 18:07:14 +03:00
#include "config.h"
avutil: add av_parse_cpu_flags() function This moves the cpu flag parsing code from avconv to avutil so it can be accessed elsewhere. Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-04-25 20:06:51 +03:00
#include "opt.h"
cpu: Include common.h for av_popcount64 This fixes build failures on windows since 2a6eaeaa8. Signed-off-by: Martin Storsjö <martin@martin.st>
2013-05-24 12:24:27 +03:00
#include "common.h"
Move mm_support() from libavcodec to libavutil, make it a public function and rename it to av_get_cpu_flags(). Originally committed as revision 25076 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-09-08 18:07:14 +03:00
Move get_logical_cpus() from lavc/pthread to lavu/cpu. It will be useful in lavfi, and could conceivably be useful to the user applications as well.
2013-05-23 09:59:07 +03:00
#if HAVE_SCHED_GETAFFINITY
Merge commit '2a6eaeaa85d17b27ee0dd449183ec197c35c9675' * commit '2a6eaeaa85d17b27ee0dd449183ec197c35c9675': Move get_logical_cpus() from lavc/pthread to lavu/cpu. Conflicts: doc/APIchanges libavcodec/pthread.c libavutil/cpu.c libavutil/cpu.h libavutil/version.h Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-05-24 14:13:03 +03:00
#ifndef _GNU_SOURCE
# define _GNU_SOURCE
#endif
Move get_logical_cpus() from lavc/pthread to lavu/cpu. It will be useful in lavfi, and could conceivably be useful to the user applications as well.
2013-05-23 09:59:07 +03:00
#include <sched.h>
#endif
winrt: multithreading support _beginthreadex is for desktop only. CreateThread is available for windows store apps on windows (and phone) 8.1 and later. http://msdn.microsoft.com/en-us/library/ms682453%28VS.85%29.aspx Signed-off-by: Matt Oliver <protogonoi@gmail.com>
2015-09-29 12:11:03 +02:00
#if HAVE_GETPROCESSAFFINITYMASK || HAVE_WINRT
Move get_logical_cpus() from lavc/pthread to lavu/cpu. It will be useful in lavfi, and could conceivably be useful to the user applications as well.
2013-05-23 09:59:07 +03:00
#include <windows.h>
#endif
#if HAVE_SYSCTL
#if HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#include <sys/types.h>
#include <sys/sysctl.h>
#endif
avutil/cpu: Use HAVE_UNISTD_H instead of HAVE_SYSCONF for #include <unistd.h> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-07-08 03:50:24 +03:00
#if HAVE_UNISTD_H
Move get_logical_cpus() from lavc/pthread to lavu/cpu. It will be useful in lavfi, and could conceivably be useful to the user applications as well.
2013-05-23 09:59:07 +03:00
#include <unistd.h>
#endif
avutil: fix data race in av_get_cpu_flags() Make the one-time initialization in av_get_cpu_flags() thread-safe. The static variable |cpu_flags| in libavutil/cpu.c is read and written using normal load and store operations. These are considered as data races. The fix is to use atomic load and store operations. The fix can be verified by running the libavutil/tests/cpu_init.c test program under ThreadSanitizer: ./configure --toolchain=clang-tsan make libavutil/tests/cpu_init libavutil/tests/cpu_init There should be no warnings from ThreadSanitizer. Co-author: Dmitry Vyukov of Google, who suggested the data race fix. Signed-off-by: Wan-Teh Chang <wtc@google.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2016-12-07 04:16:13 +02:00
static atomic_int cpu_flags = ATOMIC_VAR_INIT(-1);
avutil/cpu: remove the |checked| static variable Remove the |checked| variable because the invalid value of -1 for |flags| can be used to indicate the same condition. Also rename |flags| to |cpu_flags| because there are a local variable and a function parameter named |flags| in the same file. Co-author: Dmitry Vyukov of Google Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2016-11-23 21:21:56 +02:00
static int get_cpu_flags(void)
{
if (ARCH_AARCH64)
return ff_get_cpu_flags_aarch64();
if (ARCH_ARM)
return ff_get_cpu_flags_arm();
if (ARCH_PPC)
return ff_get_cpu_flags_ppc();
if (ARCH_X86)
return ff_get_cpu_flags_x86();
return 0;
}
cpudetect: add av_force_cpu_flags() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-06-02 17:09:22 +03:00
void av_force_cpu_flags(int arg){
lavu/cpu: disable MMX warning on non x86 platforms We have AV_CPU_FLAG_ARMV8 == AV_CPU_FLAG_SSE3 which causes a trigger of this MMX warning on AArch64.
2017-06-28 15:20:45 +02:00
if (ARCH_X86 &&
(arg & ( AV_CPU_FLAG_3DNOW |
avutil/cpu: force mmx on selection of higher x86 SIMD features Fixes various runtime failures with manually set flags that represent no existing CPU Fixes Ticket3653 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-05-20 06:23:52 +03:00
AV_CPU_FLAG_3DNOWEXT |
avutil/cpu: add missing check for mmxext to av_force_cpu_flags Reviewed-by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: James Almer <jamrial@gmail.com>
2015-03-26 07:11:55 +02:00
AV_CPU_FLAG_MMXEXT |
avutil/cpu: force mmx on selection of higher x86 SIMD features Fixes various runtime failures with manually set flags that represent no existing CPU Fixes Ticket3653 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-05-20 06:23:52 +03:00
AV_CPU_FLAG_SSE |
AV_CPU_FLAG_SSE2 |
AV_CPU_FLAG_SSE2SLOW |
AV_CPU_FLAG_SSE3 |
AV_CPU_FLAG_SSE3SLOW |
AV_CPU_FLAG_SSSE3 |
AV_CPU_FLAG_SSE4 |
AV_CPU_FLAG_SSE42 |
AV_CPU_FLAG_AVX |
x86/cpu: add AV_CPU_FLAG_AVXSLOW flag Reviewed-by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: James Almer <jamrial@gmail.com>
2015-05-27 08:30:20 +02:00
AV_CPU_FLAG_AVXSLOW |
avutil/cpu: force mmx on selection of higher x86 SIMD features Fixes various runtime failures with manually set flags that represent no existing CPU Fixes Ticket3653 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-05-20 06:23:52 +03:00
AV_CPU_FLAG_XOP |
AV_CPU_FLAG_FMA3 |
AV_CPU_FLAG_FMA4 |
AV_CPU_FLAG_AVX2 ))
&& !(arg & AV_CPU_FLAG_MMX)) {
av_log(NULL, AV_LOG_WARNING, "MMX implied by specified flags\n");
arg |= AV_CPU_FLAG_MMX;
}
avutil: fix data race in av_get_cpu_flags() Make the one-time initialization in av_get_cpu_flags() thread-safe. The static variable |cpu_flags| in libavutil/cpu.c is read and written using normal load and store operations. These are considered as data races. The fix is to use atomic load and store operations. The fix can be verified by running the libavutil/tests/cpu_init.c test program under ThreadSanitizer: ./configure --toolchain=clang-tsan make libavutil/tests/cpu_init libavutil/tests/cpu_init There should be no warnings from ThreadSanitizer. Co-author: Dmitry Vyukov of Google, who suggested the data race fix. Signed-off-by: Wan-Teh Chang <wtc@google.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2016-12-07 04:16:13 +02:00
atomic_store_explicit(&cpu_flags, arg, memory_order_relaxed);
cpudetect: add av_force_cpu_flags() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-06-02 17:09:22 +03:00
}
Move mm_support() from libavcodec to libavutil, make it a public function and rename it to av_get_cpu_flags(). Originally committed as revision 25076 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-09-08 18:07:14 +03:00
int av_get_cpu_flags(void)
{
avutil: fix data race in av_get_cpu_flags() Make the one-time initialization in av_get_cpu_flags() thread-safe. The static variable |cpu_flags| in libavutil/cpu.c is read and written using normal load and store operations. These are considered as data races. The fix is to use atomic load and store operations. The fix can be verified by running the libavutil/tests/cpu_init.c test program under ThreadSanitizer: ./configure --toolchain=clang-tsan make libavutil/tests/cpu_init libavutil/tests/cpu_init There should be no warnings from ThreadSanitizer. Co-author: Dmitry Vyukov of Google, who suggested the data race fix. Signed-off-by: Wan-Teh Chang <wtc@google.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2016-12-07 04:16:13 +02:00
int flags = atomic_load_explicit(&cpu_flags, memory_order_relaxed);
avutil/cpu: remove the |checked| static variable Remove the |checked| variable because the invalid value of -1 for |flags| can be used to indicate the same condition. Also rename |flags| to |cpu_flags| because there are a local variable and a function parameter named |flags| in the same file. Co-author: Dmitry Vyukov of Google Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2016-11-23 21:21:56 +02:00
if (flags == -1) {
flags = get_cpu_flags();
avutil: fix data race in av_get_cpu_flags() Make the one-time initialization in av_get_cpu_flags() thread-safe. The static variable |cpu_flags| in libavutil/cpu.c is read and written using normal load and store operations. These are considered as data races. The fix is to use atomic load and store operations. The fix can be verified by running the libavutil/tests/cpu_init.c test program under ThreadSanitizer: ./configure --toolchain=clang-tsan make libavutil/tests/cpu_init libavutil/tests/cpu_init There should be no warnings from ThreadSanitizer. Co-author: Dmitry Vyukov of Google, who suggested the data race fix. Signed-off-by: Wan-Teh Chang <wtc@google.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2016-12-07 04:16:13 +02:00
atomic_store_explicit(&cpu_flags, flags, memory_order_relaxed);
avutil/cpu: remove the |checked| static variable Remove the |checked| variable because the invalid value of -1 for |flags| can be used to indicate the same condition. Also rename |flags| to |cpu_flags| because there are a local variable and a function parameter named |flags| in the same file. Co-author: Dmitry Vyukov of Google Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2016-11-23 21:21:56 +02:00
}
Cache detected CPU flags Originally committed as revision 25085 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-09-09 21:51:49 +03:00
return flags;
Move mm_support() from libavcodec to libavutil, make it a public function and rename it to av_get_cpu_flags(). Originally committed as revision 25076 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-09-08 18:07:14 +03:00
}
cpu: add av_set_cpu_flags_mask().
2012-03-04 18:08:48 +03:00
void av_set_cpu_flags_mask(int mask)
{
avutil: fix data race in av_get_cpu_flags() Make the one-time initialization in av_get_cpu_flags() thread-safe. The static variable |cpu_flags| in libavutil/cpu.c is read and written using normal load and store operations. These are considered as data races. The fix is to use atomic load and store operations. The fix can be verified by running the libavutil/tests/cpu_init.c test program under ThreadSanitizer: ./configure --toolchain=clang-tsan make libavutil/tests/cpu_init libavutil/tests/cpu_init There should be no warnings from ThreadSanitizer. Co-author: Dmitry Vyukov of Google, who suggested the data race fix. Signed-off-by: Wan-Teh Chang <wtc@google.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2016-12-07 04:16:13 +02:00
atomic_store_explicit(&cpu_flags, get_cpu_flags() & mask,
memory_order_relaxed);
cpu: add av_set_cpu_flags_mask().
2012-03-04 18:08:48 +03:00
}
avutil: add av_parse_cpu_flags() function This moves the cpu flag parsing code from avconv to avutil so it can be accessed elsewhere. Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-04-25 20:06:51 +03:00
int av_parse_cpu_flags(const char *s)
{
x86: build: replace mmx2 by mmxext Refactoring mmx2/mmxext YASM code with cpuflags will force renames. So switching to a consistent naming scheme beforehand is sensible. The name "mmxext" is more official and widespread and also the name of the CPU flag, as reported e.g. by the Linux kernel.
2012-07-08 19:42:12 +03:00
#define CPUFLAG_MMXEXT (AV_CPU_FLAG_MMX | AV_CPU_FLAG_MMXEXT | AV_CPU_FLAG_CMOV)
avutil: add av_parse_cpu_flags() function This moves the cpu flag parsing code from avconv to avutil so it can be accessed elsewhere. Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-04-25 20:06:51 +03:00
#define CPUFLAG_3DNOW (AV_CPU_FLAG_3DNOW | AV_CPU_FLAG_MMX)
#define CPUFLAG_3DNOWEXT (AV_CPU_FLAG_3DNOWEXT | CPUFLAG_3DNOW)
x86: build: replace mmx2 by mmxext Refactoring mmx2/mmxext YASM code with cpuflags will force renames. So switching to a consistent naming scheme beforehand is sensible. The name "mmxext" is more official and widespread and also the name of the CPU flag, as reported e.g. by the Linux kernel.
2012-07-08 19:42:12 +03:00
#define CPUFLAG_SSE (AV_CPU_FLAG_SSE | CPUFLAG_MMXEXT)
avutil: add av_parse_cpu_flags() function This moves the cpu flag parsing code from avconv to avutil so it can be accessed elsewhere. Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-04-25 20:06:51 +03:00
#define CPUFLAG_SSE2 (AV_CPU_FLAG_SSE2 | CPUFLAG_SSE)
#define CPUFLAG_SSE2SLOW (AV_CPU_FLAG_SSE2SLOW | CPUFLAG_SSE2)
#define CPUFLAG_SSE3 (AV_CPU_FLAG_SSE3 | CPUFLAG_SSE2)
#define CPUFLAG_SSE3SLOW (AV_CPU_FLAG_SSE3SLOW | CPUFLAG_SSE3)
#define CPUFLAG_SSSE3 (AV_CPU_FLAG_SSSE3 | CPUFLAG_SSE3)
#define CPUFLAG_SSE4 (AV_CPU_FLAG_SSE4 | CPUFLAG_SSSE3)
#define CPUFLAG_SSE42 (AV_CPU_FLAG_SSE42 | CPUFLAG_SSE4)
#define CPUFLAG_AVX (AV_CPU_FLAG_AVX | CPUFLAG_SSE42)
x86/cpu: add AV_CPU_FLAG_AVXSLOW flag Reviewed-by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: James Almer <jamrial@gmail.com>
2015-05-27 08:30:20 +02:00
#define CPUFLAG_AVXSLOW (AV_CPU_FLAG_AVXSLOW | CPUFLAG_AVX)
avutil: add av_parse_cpu_flags() function This moves the cpu flag parsing code from avconv to avutil so it can be accessed elsewhere. Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-04-25 20:06:51 +03:00
#define CPUFLAG_XOP (AV_CPU_FLAG_XOP | CPUFLAG_AVX)
x86: add detection for FMA3 instruction set Based on x264 code Signed-off-by: James Almer <jamrial@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-02-22 08:47:01 +03:00
#define CPUFLAG_FMA3 (AV_CPU_FLAG_FMA3 | CPUFLAG_AVX)
avutil: add av_parse_cpu_flags() function This moves the cpu flag parsing code from avconv to avutil so it can be accessed elsewhere. Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-04-25 20:06:51 +03:00
#define CPUFLAG_FMA4 (AV_CPU_FLAG_FMA4 | CPUFLAG_AVX)
Add AVX2 capable CPU detection. Patch based on x264's AVX2 detection Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-10-20 18:28:38 +03:00
#define CPUFLAG_AVX2 (AV_CPU_FLAG_AVX2 | CPUFLAG_AVX)
avutil: remove pointless bmi1 define Reviewed-by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: James Almer <jamrial@gmail.com>
2015-04-19 01:06:21 +02:00
#define CPUFLAG_BMI2 (AV_CPU_FLAG_BMI2 | AV_CPU_FLAG_BMI1)
lavu: add AESNI CPU flag
2015-10-26 09:08:58 +02:00
#define CPUFLAG_AESNI (AV_CPU_FLAG_AESNI | CPUFLAG_SSE42)
avutil: add av_parse_cpu_flags() function This moves the cpu flag parsing code from avconv to avutil so it can be accessed elsewhere. Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-04-25 20:06:51 +03:00
static const AVOption cpuflags_opts[] = {
avopt: Store defaults for AV_OPT_TYPE_FLAGS in the i64 union member Signed-off-by: Martin Storsjö <martin@martin.st>
2012-08-31 12:52:18 +03:00
{ "flags" , NULL, 0, AV_OPT_TYPE_FLAGS, { .i64 = 0 }, INT64_MIN, INT64_MAX, .unit = "flags" },
cpu: recognise only cpu flag names pertinent to the architecture Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-04-25 20:11:33 +03:00
#if ARCH_PPC
avopt: Store defaults for AV_OPT_TYPE_CONST in the i64 union member Signed-off-by: Martin Storsjö <martin@martin.st>
2012-08-31 12:45:52 +03:00
{ "altivec" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ALTIVEC }, .unit = "flags" },
cpu: recognise only cpu flag names pertinent to the architecture Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-04-25 20:11:33 +03:00
#elif ARCH_X86
avopt: Store defaults for AV_OPT_TYPE_CONST in the i64 union member Signed-off-by: Martin Storsjö <martin@martin.st>
2012-08-31 12:45:52 +03:00
{ "mmx" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_MMX }, .unit = "flags" },
{ "mmxext" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_MMXEXT }, .unit = "flags" },
{ "sse" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_SSE }, .unit = "flags" },
{ "sse2" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_SSE2 }, .unit = "flags" },
{ "sse2slow", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_SSE2SLOW }, .unit = "flags" },
{ "sse3" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_SSE3 }, .unit = "flags" },
{ "sse3slow", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_SSE3SLOW }, .unit = "flags" },
{ "ssse3" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_SSSE3 }, .unit = "flags" },
{ "atom" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ATOM }, .unit = "flags" },
{ "sse4.1" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_SSE4 }, .unit = "flags" },
{ "sse4.2" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_SSE42 }, .unit = "flags" },
{ "avx" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_AVX }, .unit = "flags" },
x86/cpu: add AV_CPU_FLAG_AVXSLOW flag Reviewed-by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: James Almer <jamrial@gmail.com>
2015-05-27 08:30:20 +02:00
{ "avxslow" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_AVXSLOW }, .unit = "flags" },
avopt: Store defaults for AV_OPT_TYPE_CONST in the i64 union member Signed-off-by: Martin Storsjö <martin@martin.st>
2012-08-31 12:45:52 +03:00
{ "xop" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_XOP }, .unit = "flags" },
x86: add detection for FMA3 instruction set Based on x264 code Signed-off-by: James Almer <jamrial@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-02-22 08:47:01 +03:00
{ "fma3" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_FMA3 }, .unit = "flags" },
avopt: Store defaults for AV_OPT_TYPE_CONST in the i64 union member Signed-off-by: Martin Storsjö <martin@martin.st>
2012-08-31 12:45:52 +03:00
{ "fma4" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_FMA4 }, .unit = "flags" },
Add AVX2 capable CPU detection. Patch based on x264's AVX2 detection Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-10-20 18:28:38 +03:00
{ "avx2" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_AVX2 }, .unit = "flags" },
avutil: remove pointless bmi1 define Reviewed-by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: James Almer <jamrial@gmail.com>
2015-04-19 01:06:21 +02:00
{ "bmi1" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_BMI1 }, .unit = "flags" },
x86: add detection for Bit Manipulation Instruction sets Based on x264 code Signed-off-by: James Almer <jamrial@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-02-22 08:47:02 +03:00
{ "bmi2" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_BMI2 }, .unit = "flags" },
avopt: Store defaults for AV_OPT_TYPE_CONST in the i64 union member Signed-off-by: Martin Storsjö <martin@martin.st>
2012-08-31 12:45:52 +03:00
{ "3dnow" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_3DNOW }, .unit = "flags" },
{ "3dnowext", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_3DNOWEXT }, .unit = "flags" },
{ "cmov", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_CMOV }, .unit = "flags" },
lavu: add AESNI CPU flag
2015-10-26 09:08:58 +02:00
{ "aesni" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_AESNI }, .unit = "flags" },
cpu: recognise only cpu flag names pertinent to the architecture Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-04-25 20:11:33 +03:00
#elif ARCH_ARM
avopt: Store defaults for AV_OPT_TYPE_CONST in the i64 union member Signed-off-by: Martin Storsjö <martin@martin.st>
2012-08-31 12:45:52 +03:00
{ "armv5te", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ARMV5TE }, .unit = "flags" },
{ "armv6", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ARMV6 }, .unit = "flags" },
{ "armv6t2", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ARMV6T2 }, .unit = "flags" },
{ "vfp", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_VFP }, .unit = "flags" },
arm: add a cpu flag for the VFPv2 vector mode The vector mode was deprecated in ARMv7-A/VFPv3 and various cpu implementations do not support it in hardware. Vector mode code will depending the OS either be emulated in software or result in an illegal instruction on cpus which does not support it. This was not really problem in practice since NEON implementations of the same functions are preferred. It will however become a problem for checkasm which tests every cpu flag separately. Since this is a cpu feature newer cpu do not support anymore the behaviour of this flag differs from the other flags. It can be only activated by runtime cpu feature selection.
2015-12-09 23:28:36 +02:00
{ "vfp_vm", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_VFP_VM }, .unit = "flags" },
avopt: Store defaults for AV_OPT_TYPE_CONST in the i64 union member Signed-off-by: Martin Storsjö <martin@martin.st>
2012-08-31 12:45:52 +03:00
{ "vfpv3", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_VFPV3 }, .unit = "flags" },
{ "neon", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_NEON }, .unit = "flags" },
aarch64: add cpuflags support for NEON and VFP NEON and VFP are currently mandatory for all ARMv8 profiles. Both are handled as extensions as far as cpuflags are concerned. This is consistent with handling x86_64 which always has SSE2, but still handles it as an extension.
2013-12-10 22:13:32 +03:00
#elif ARCH_AARCH64
aarch64: add armv8 CPU flag
2014-04-05 14:46:51 +03:00
{ "armv8", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ARMV8 }, .unit = "flags" },
aarch64: add cpuflags support for NEON and VFP NEON and VFP are currently mandatory for all ARMv8 profiles. Both are handled as extensions as far as cpuflags are concerned. This is consistent with handling x86_64 which always has SSE2, but still handles it as an extension.
2013-12-10 22:13:32 +03:00
{ "neon", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_NEON }, .unit = "flags" },
{ "vfp", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_VFP }, .unit = "flags" },
cpu: recognise only cpu flag names pertinent to the architecture Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-04-25 20:11:33 +03:00
#endif
avutil: add av_parse_cpu_flags() function This moves the cpu flag parsing code from avconv to avutil so it can be accessed elsewhere. Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-04-25 20:06:51 +03:00
{ NULL },
};
static const AVClass class = {
.class_name = "cpuflags",
.item_name = av_default_item_name,
.option = cpuflags_opts,
.version = LIBAVUTIL_VERSION_INT,
};
int flags = 0, ret;
const AVClass *pclass = &class;
if ((ret = av_opt_eval_flags(&pclass, &cpuflags_opts[0], s, &flags)) < 0)
return ret;
return flags & INT_MAX;
}
cmdutils/avutil: Move cpu caps parse code into av_parse_cpu_caps() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-04-27 00:21:43 +03:00
int av_parse_cpu_caps(unsigned *flags, const char *s)
{
static const AVOption cpuflags_opts[] = {
Merge commit 'd58dd4b5b5d31cfd4092e38a5f2c894eee2ab078' * commit 'd58dd4b5b5d31cfd4092e38a5f2c894eee2ab078': avopt: Store defaults for AV_OPT_TYPE_FLAGS in the i64 union member Conflicts: libavcodec/libvpxenc.c libavcodec/options_table.h libavfilter/vf_drawtext.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-09-05 15:09:09 +03:00
{ "flags" , NULL, 0, AV_OPT_TYPE_FLAGS, { .i64 = 0 }, INT64_MIN, INT64_MAX, .unit = "flags" },
cmdutils/avutil: Move cpu caps parse code into av_parse_cpu_caps() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-04-27 00:21:43 +03:00
#if ARCH_PPC
Merge commit '124134e42455763b28cc346fed1d07017a76e84e' * commit '124134e42455763b28cc346fed1d07017a76e84e': avopt: Store defaults for AV_OPT_TYPE_CONST in the i64 union member Conflicts: libavcodec/aacenc.c libavcodec/libopenjpegenc.c libavcodec/options_table.h libavdevice/bktr.c libavdevice/v4l2.c libavdevice/x11grab.c libavfilter/af_amix.c libavfilter/vf_drawtext.c libavformat/movenc.c libavformat/options_table.h libavutil/opt.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-09-05 14:58:11 +03:00
{ "altivec" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ALTIVEC }, .unit = "flags" },
cmdutils/avutil: Move cpu caps parse code into av_parse_cpu_caps() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-04-27 00:21:43 +03:00
#elif ARCH_X86
Merge commit '124134e42455763b28cc346fed1d07017a76e84e' * commit '124134e42455763b28cc346fed1d07017a76e84e': avopt: Store defaults for AV_OPT_TYPE_CONST in the i64 union member Conflicts: libavcodec/aacenc.c libavcodec/libopenjpegenc.c libavcodec/options_table.h libavdevice/bktr.c libavdevice/v4l2.c libavdevice/x11grab.c libavfilter/af_amix.c libavfilter/vf_drawtext.c libavformat/movenc.c libavformat/options_table.h libavutil/opt.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-09-05 14:58:11 +03:00
{ "mmx" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_MMX }, .unit = "flags" },
{ "mmx2" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_MMX2 }, .unit = "flags" },
{ "mmxext" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_MMX2 }, .unit = "flags" },
{ "sse" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_SSE }, .unit = "flags" },
{ "sse2" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_SSE2 }, .unit = "flags" },
{ "sse2slow", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_SSE2SLOW }, .unit = "flags" },
{ "sse3" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_SSE3 }, .unit = "flags" },
{ "sse3slow", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_SSE3SLOW }, .unit = "flags" },
{ "ssse3" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_SSSE3 }, .unit = "flags" },
{ "atom" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ATOM }, .unit = "flags" },
{ "sse4.1" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_SSE4 }, .unit = "flags" },
{ "sse4.2" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_SSE42 }, .unit = "flags" },
{ "avx" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_AVX }, .unit = "flags" },
x86/cpu: add AV_CPU_FLAG_AVXSLOW flag Reviewed-by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: James Almer <jamrial@gmail.com>
2015-05-27 08:30:20 +02:00
{ "avxslow" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_AVXSLOW }, .unit = "flags" },
Merge commit '124134e42455763b28cc346fed1d07017a76e84e' * commit '124134e42455763b28cc346fed1d07017a76e84e': avopt: Store defaults for AV_OPT_TYPE_CONST in the i64 union member Conflicts: libavcodec/aacenc.c libavcodec/libopenjpegenc.c libavcodec/options_table.h libavdevice/bktr.c libavdevice/v4l2.c libavdevice/x11grab.c libavfilter/af_amix.c libavfilter/vf_drawtext.c libavformat/movenc.c libavformat/options_table.h libavutil/opt.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-09-05 14:58:11 +03:00
{ "xop" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_XOP }, .unit = "flags" },
x86: add detection for FMA3 instruction set Based on x264 code Signed-off-by: James Almer <jamrial@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-02-22 08:47:01 +03:00
{ "fma3" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_FMA3 }, .unit = "flags" },
Merge commit '124134e42455763b28cc346fed1d07017a76e84e' * commit '124134e42455763b28cc346fed1d07017a76e84e': avopt: Store defaults for AV_OPT_TYPE_CONST in the i64 union member Conflicts: libavcodec/aacenc.c libavcodec/libopenjpegenc.c libavcodec/options_table.h libavdevice/bktr.c libavdevice/v4l2.c libavdevice/x11grab.c libavfilter/af_amix.c libavfilter/vf_drawtext.c libavformat/movenc.c libavformat/options_table.h libavutil/opt.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-09-05 14:58:11 +03:00
{ "fma4" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_FMA4 }, .unit = "flags" },
x86/cpu: add missing avx2 AVOption in av_parse_cpu_flags() Signed-off-by: James Almer <jamrial@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-02-06 07:34:01 +03:00
{ "avx2" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_AVX2 }, .unit = "flags" },
x86: add detection for Bit Manipulation Instruction sets Based on x264 code Signed-off-by: James Almer <jamrial@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-02-22 08:47:02 +03:00
{ "bmi1" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_BMI1 }, .unit = "flags" },
{ "bmi2" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_BMI2 }, .unit = "flags" },
Merge commit '124134e42455763b28cc346fed1d07017a76e84e' * commit '124134e42455763b28cc346fed1d07017a76e84e': avopt: Store defaults for AV_OPT_TYPE_CONST in the i64 union member Conflicts: libavcodec/aacenc.c libavcodec/libopenjpegenc.c libavcodec/options_table.h libavdevice/bktr.c libavdevice/v4l2.c libavdevice/x11grab.c libavfilter/af_amix.c libavfilter/vf_drawtext.c libavformat/movenc.c libavformat/options_table.h libavutil/opt.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-09-05 14:58:11 +03:00
{ "3dnow" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_3DNOW }, .unit = "flags" },
{ "3dnowext", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_3DNOWEXT }, .unit = "flags" },
cpu: add cmov ro the table, which appears to have been forgotten Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-11-17 04:04:30 +03:00
{ "cmov", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_CMOV }, .unit = "flags" },
lavu: add AESNI CPU flag
2015-10-26 09:08:58 +02:00
{ "aesni", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_AESNI }, .unit = "flags" },
cpu: add a few cpu names as aliases for their cpu flags Help to complete this list is welcome! Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-11-17 04:08:12 +03:00
#define CPU_FLAG_P2 AV_CPU_FLAG_CMOV | AV_CPU_FLAG_MMX
#define CPU_FLAG_P3 CPU_FLAG_P2 | AV_CPU_FLAG_MMX2 | AV_CPU_FLAG_SSE
#define CPU_FLAG_P4 CPU_FLAG_P3| AV_CPU_FLAG_SSE2
{ "pentium2", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPU_FLAG_P2 }, .unit = "flags" },
{ "pentium3", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPU_FLAG_P3 }, .unit = "flags" },
{ "pentium4", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPU_FLAG_P4 }, .unit = "flags" },
#define CPU_FLAG_K62 AV_CPU_FLAG_MMX | AV_CPU_FLAG_3DNOW
#define CPU_FLAG_ATHLON CPU_FLAG_K62 | AV_CPU_FLAG_CMOV | AV_CPU_FLAG_3DNOWEXT | AV_CPU_FLAG_MMX2
#define CPU_FLAG_ATHLONXP CPU_FLAG_ATHLON | AV_CPU_FLAG_SSE
#define CPU_FLAG_K8 CPU_FLAG_ATHLONXP | AV_CPU_FLAG_SSE2
{ "k6", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_MMX }, .unit = "flags" },
{ "k62", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPU_FLAG_K62 }, .unit = "flags" },
{ "athlon", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPU_FLAG_ATHLON }, .unit = "flags" },
{ "athlonxp", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPU_FLAG_ATHLONXP }, .unit = "flags" },
{ "k8", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPU_FLAG_K8 }, .unit = "flags" },
cmdutils/avutil: Move cpu caps parse code into av_parse_cpu_caps() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-04-27 00:21:43 +03:00
#elif ARCH_ARM
Merge commit '124134e42455763b28cc346fed1d07017a76e84e' * commit '124134e42455763b28cc346fed1d07017a76e84e': avopt: Store defaults for AV_OPT_TYPE_CONST in the i64 union member Conflicts: libavcodec/aacenc.c libavcodec/libopenjpegenc.c libavcodec/options_table.h libavdevice/bktr.c libavdevice/v4l2.c libavdevice/x11grab.c libavfilter/af_amix.c libavfilter/vf_drawtext.c libavformat/movenc.c libavformat/options_table.h libavutil/opt.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-09-05 14:58:11 +03:00
{ "armv5te", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ARMV5TE }, .unit = "flags" },
{ "armv6", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ARMV6 }, .unit = "flags" },
{ "armv6t2", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ARMV6T2 }, .unit = "flags" },
{ "vfp", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_VFP }, .unit = "flags" },
avutil/cpu: add missing entry for vfp_vm to av_parse_cpu_caps
2016-01-02 20:07:08 +02:00
{ "vfp_vm", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_VFP_VM }, .unit = "flags" },
Merge commit '124134e42455763b28cc346fed1d07017a76e84e' * commit '124134e42455763b28cc346fed1d07017a76e84e': avopt: Store defaults for AV_OPT_TYPE_CONST in the i64 union member Conflicts: libavcodec/aacenc.c libavcodec/libopenjpegenc.c libavcodec/options_table.h libavdevice/bktr.c libavdevice/v4l2.c libavdevice/x11grab.c libavfilter/af_amix.c libavfilter/vf_drawtext.c libavformat/movenc.c libavformat/options_table.h libavutil/opt.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-09-05 14:58:11 +03:00
{ "vfpv3", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_VFPV3 }, .unit = "flags" },
{ "neon", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_NEON }, .unit = "flags" },
avutil: turn arm setend into a cpuflag this allows disabling and enabling it it also prevents crashes if vfpv3 and neon are disabled which previously would have enabled the flag And last but not least one can enable setend on cpus like cortex-a8 where its fast but disabled by default Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-08-07 19:34:35 +03:00
{ "setend", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_SETEND }, .unit = "flags" },
avutil/cpu: add aarch64 entries to 2nd table Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-08-06 14:59:18 +03:00
#elif ARCH_AARCH64
{ "armv8", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ARMV8 }, .unit = "flags" },
{ "neon", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_NEON }, .unit = "flags" },
{ "vfp", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_VFP }, .unit = "flags" },
cmdutils/avutil: Move cpu caps parse code into av_parse_cpu_caps() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-04-27 00:21:43 +03:00
#endif
{ NULL },
};
static const AVClass class = {
.class_name = "cpuflags",
.item_name = av_default_item_name,
.option = cpuflags_opts,
.version = LIBAVUTIL_VERSION_INT,
};
const AVClass *pclass = &class;
return av_opt_eval_flags(&pclass, &cpuflags_opts[0], s, flags);
}
Merge commit '2a6eaeaa85d17b27ee0dd449183ec197c35c9675' * commit '2a6eaeaa85d17b27ee0dd449183ec197c35c9675': Move get_logical_cpus() from lavc/pthread to lavu/cpu. Conflicts: doc/APIchanges libavcodec/pthread.c libavutil/cpu.c libavutil/cpu.h libavutil/version.h Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-05-24 14:13:03 +03:00
Move get_logical_cpus() from lavc/pthread to lavu/cpu. It will be useful in lavfi, and could conceivably be useful to the user applications as well.
2013-05-23 09:59:07 +03:00
int av_cpu_count(void)
{
av_cpu_count: factorize "detected %d logical cores" message Also print the message just once Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-05-26 03:18:38 +03:00
static volatile int printed;
cpu: Restructure code to avoid pointless ret variable indirection libavutil/cpu.c:133:9: warning: unused variable ‘ret’ [-Wunused-variable]
2013-06-01 16:38:51 +03:00
int nb_cpus = 1;
winrt: multithreading support _beginthreadex is for desktop only. CreateThread is available for windows store apps on windows (and phone) 8.1 and later. http://msdn.microsoft.com/en-us/library/ms682453%28VS.85%29.aspx Signed-off-by: Matt Oliver <protogonoi@gmail.com>
2015-09-29 12:11:03 +02:00
#if HAVE_WINRT
SYSTEM_INFO sysinfo;
#endif
Move get_logical_cpus() from lavc/pthread to lavu/cpu. It will be useful in lavfi, and could conceivably be useful to the user applications as well.
2013-05-23 09:59:07 +03:00
#if HAVE_SCHED_GETAFFINITY && defined(CPU_COUNT)
cpu_set_t cpuset;
CPU_ZERO(&cpuset);
cpu: Restructure code to avoid pointless ret variable indirection libavutil/cpu.c:133:9: warning: unused variable ‘ret’ [-Wunused-variable]
2013-06-01 16:38:51 +03:00
if (!sched_getaffinity(0, sizeof(cpuset), &cpuset))
Move get_logical_cpus() from lavc/pthread to lavu/cpu. It will be useful in lavfi, and could conceivably be useful to the user applications as well.
2013-05-23 09:59:07 +03:00
nb_cpus = CPU_COUNT(&cpuset);
#elif HAVE_GETPROCESSAFFINITYMASK
DWORD_PTR proc_aff, sys_aff;
cpu: Restructure code to avoid pointless ret variable indirection libavutil/cpu.c:133:9: warning: unused variable ‘ret’ [-Wunused-variable]
2013-06-01 16:38:51 +03:00
if (GetProcessAffinityMask(GetCurrentProcess(), &proc_aff, &sys_aff))
Move get_logical_cpus() from lavc/pthread to lavu/cpu. It will be useful in lavfi, and could conceivably be useful to the user applications as well.
2013-05-23 09:59:07 +03:00
nb_cpus = av_popcount64(proc_aff);
#elif HAVE_SYSCTL && defined(HW_NCPU)
int mib[2] = { CTL_HW, HW_NCPU };
size_t len = sizeof(nb_cpus);
cpu: Restructure code to avoid pointless ret variable indirection libavutil/cpu.c:133:9: warning: unused variable ‘ret’ [-Wunused-variable]
2013-06-01 16:38:51 +03:00
if (sysctl(mib, 2, &nb_cpus, &len, NULL, 0) == -1)
Move get_logical_cpus() from lavc/pthread to lavu/cpu. It will be useful in lavfi, and could conceivably be useful to the user applications as well.
2013-05-23 09:59:07 +03:00
nb_cpus = 0;
#elif HAVE_SYSCONF && defined(_SC_NPROC_ONLN)
nb_cpus = sysconf(_SC_NPROC_ONLN);
#elif HAVE_SYSCONF && defined(_SC_NPROCESSORS_ONLN)
nb_cpus = sysconf(_SC_NPROCESSORS_ONLN);
winrt: multithreading support _beginthreadex is for desktop only. CreateThread is available for windows store apps on windows (and phone) 8.1 and later. http://msdn.microsoft.com/en-us/library/ms682453%28VS.85%29.aspx Signed-off-by: Matt Oliver <protogonoi@gmail.com>
2015-09-29 12:11:03 +02:00
#elif HAVE_WINRT
GetNativeSystemInfo(&sysinfo);
nb_cpus = sysinfo.dwNumberOfProcessors;
Move get_logical_cpus() from lavc/pthread to lavu/cpu. It will be useful in lavfi, and could conceivably be useful to the user applications as well.
2013-05-23 09:59:07 +03:00
#endif
av_cpu_count: factorize "detected %d logical cores" message Also print the message just once Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-05-26 03:18:38 +03:00
if (!printed) {
av_log(NULL, AV_LOG_DEBUG, "detected %d logical cores\n", nb_cpus);
printed = 1;
}
Move get_logical_cpus() from lavc/pthread to lavu/cpu. It will be useful in lavfi, and could conceivably be useful to the user applications as well.
2013-05-23 09:59:07 +03:00
return nb_cpus;
}
cpu: add a function for querying maximum required data alignment
2017-02-08 10:32:17 +02:00
size_t av_cpu_max_align(void)
{
avutil/cpu: split flag checks per arch in av_cpu_max_align() Signed-off-by: James Almer <jamrial@gmail.com>
2017-09-28 04:10:09 +02:00
if (ARCH_AARCH64)
return ff_get_cpu_max_align_aarch64();
if (ARCH_ARM)
return ff_get_cpu_max_align_arm();
if (ARCH_PPC)
return ff_get_cpu_max_align_ppc();
if (ARCH_X86)
return ff_get_cpu_max_align_x86();
cpu: add a function for querying maximum required data alignment
2017-02-08 10:32:17 +02:00
return 8;
}
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