mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-11-21 10:55:51 +02:00
1e519b9d40
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>
406 lines
17 KiB
C
406 lines
17 KiB
C
/*
|
|
* 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
|
|
*/
|
|
|
|
#include <stdint.h>
|
|
|
|
#include "cpu.h"
|
|
#include "cpu_internal.h"
|
|
#include "config.h"
|
|
#include "opt.h"
|
|
#include "common.h"
|
|
|
|
#if HAVE_SCHED_GETAFFINITY
|
|
#ifndef _GNU_SOURCE
|
|
# define _GNU_SOURCE
|
|
#endif
|
|
#include <sched.h>
|
|
#endif
|
|
#if HAVE_GETPROCESSAFFINITYMASK
|
|
#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
|
|
#if HAVE_UNISTD_H
|
|
#include <unistd.h>
|
|
#endif
|
|
|
|
static int flags, checked;
|
|
|
|
void av_force_cpu_flags(int arg){
|
|
if ( (arg & ( AV_CPU_FLAG_3DNOW |
|
|
AV_CPU_FLAG_3DNOWEXT |
|
|
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 |
|
|
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;
|
|
}
|
|
|
|
flags = arg;
|
|
checked = arg != -1;
|
|
}
|
|
|
|
int av_get_cpu_flags(void)
|
|
{
|
|
if (checked)
|
|
return flags;
|
|
|
|
if (ARCH_AARCH64)
|
|
flags = ff_get_cpu_flags_aarch64();
|
|
if (ARCH_ARM)
|
|
flags = ff_get_cpu_flags_arm();
|
|
if (ARCH_PPC)
|
|
flags = ff_get_cpu_flags_ppc();
|
|
if (ARCH_X86)
|
|
flags = ff_get_cpu_flags_x86();
|
|
|
|
checked = 1;
|
|
return flags;
|
|
}
|
|
|
|
void av_set_cpu_flags_mask(int mask)
|
|
{
|
|
checked = 0;
|
|
flags = av_get_cpu_flags() & mask;
|
|
checked = 1;
|
|
}
|
|
|
|
int av_parse_cpu_flags(const char *s)
|
|
{
|
|
#define CPUFLAG_MMXEXT (AV_CPU_FLAG_MMX | AV_CPU_FLAG_MMXEXT | AV_CPU_FLAG_CMOV)
|
|
#define CPUFLAG_3DNOW (AV_CPU_FLAG_3DNOW | AV_CPU_FLAG_MMX)
|
|
#define CPUFLAG_3DNOWEXT (AV_CPU_FLAG_3DNOWEXT | CPUFLAG_3DNOW)
|
|
#define CPUFLAG_SSE (AV_CPU_FLAG_SSE | CPUFLAG_MMXEXT)
|
|
#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)
|
|
#define CPUFLAG_XOP (AV_CPU_FLAG_XOP | CPUFLAG_AVX)
|
|
#define CPUFLAG_FMA3 (AV_CPU_FLAG_FMA3 | CPUFLAG_AVX)
|
|
#define CPUFLAG_FMA4 (AV_CPU_FLAG_FMA4 | CPUFLAG_AVX)
|
|
#define CPUFLAG_AVX2 (AV_CPU_FLAG_AVX2 | CPUFLAG_AVX)
|
|
#define CPUFLAG_BMI1 (AV_CPU_FLAG_BMI1)
|
|
#define CPUFLAG_BMI2 (AV_CPU_FLAG_BMI2 | CPUFLAG_BMI1)
|
|
static const AVOption cpuflags_opts[] = {
|
|
{ "flags" , NULL, 0, AV_OPT_TYPE_FLAGS, { .i64 = 0 }, INT64_MIN, INT64_MAX, .unit = "flags" },
|
|
#if ARCH_PPC
|
|
{ "altivec" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ALTIVEC }, .unit = "flags" },
|
|
#elif ARCH_X86
|
|
{ "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" },
|
|
{ "xop" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_XOP }, .unit = "flags" },
|
|
{ "fma3" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_FMA3 }, .unit = "flags" },
|
|
{ "fma4" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_FMA4 }, .unit = "flags" },
|
|
{ "avx2" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_AVX2 }, .unit = "flags" },
|
|
{ "bmi1" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_BMI1 }, .unit = "flags" },
|
|
{ "bmi2" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_BMI2 }, .unit = "flags" },
|
|
{ "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" },
|
|
#elif ARCH_ARM
|
|
{ "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" },
|
|
{ "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" },
|
|
#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" },
|
|
#endif
|
|
{ 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;
|
|
}
|
|
|
|
int av_parse_cpu_caps(unsigned *flags, const char *s)
|
|
{
|
|
static const AVOption cpuflags_opts[] = {
|
|
{ "flags" , NULL, 0, AV_OPT_TYPE_FLAGS, { .i64 = 0 }, INT64_MIN, INT64_MAX, .unit = "flags" },
|
|
#if ARCH_PPC
|
|
{ "altivec" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ALTIVEC }, .unit = "flags" },
|
|
#elif ARCH_X86
|
|
{ "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" },
|
|
{ "xop" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_XOP }, .unit = "flags" },
|
|
{ "fma3" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_FMA3 }, .unit = "flags" },
|
|
{ "fma4" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_FMA4 }, .unit = "flags" },
|
|
{ "avx2" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_AVX2 }, .unit = "flags" },
|
|
{ "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" },
|
|
{ "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" },
|
|
{ "cmov", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_CMOV }, .unit = "flags" },
|
|
|
|
#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" },
|
|
#elif ARCH_ARM
|
|
{ "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" },
|
|
{ "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" },
|
|
{ "setend", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_SETEND }, .unit = "flags" },
|
|
#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" },
|
|
#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);
|
|
}
|
|
|
|
int av_cpu_count(void)
|
|
{
|
|
static volatile int printed;
|
|
|
|
int nb_cpus = 1;
|
|
#if HAVE_SCHED_GETAFFINITY && defined(CPU_COUNT)
|
|
cpu_set_t cpuset;
|
|
|
|
CPU_ZERO(&cpuset);
|
|
|
|
if (!sched_getaffinity(0, sizeof(cpuset), &cpuset))
|
|
nb_cpus = CPU_COUNT(&cpuset);
|
|
#elif HAVE_GETPROCESSAFFINITYMASK
|
|
DWORD_PTR proc_aff, sys_aff;
|
|
if (GetProcessAffinityMask(GetCurrentProcess(), &proc_aff, &sys_aff))
|
|
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);
|
|
|
|
if (sysctl(mib, 2, &nb_cpus, &len, NULL, 0) == -1)
|
|
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);
|
|
#endif
|
|
|
|
if (!printed) {
|
|
av_log(NULL, AV_LOG_DEBUG, "detected %d logical cores\n", nb_cpus);
|
|
printed = 1;
|
|
}
|
|
|
|
return nb_cpus;
|
|
}
|
|
|
|
#ifdef TEST
|
|
|
|
#include <stdio.h>
|
|
#include "avstring.h"
|
|
|
|
#if !HAVE_GETOPT
|
|
#include "compat/getopt.c"
|
|
#endif
|
|
|
|
static const struct {
|
|
int flag;
|
|
const char *name;
|
|
} cpu_flag_tab[] = {
|
|
#if ARCH_AARCH64
|
|
{ AV_CPU_FLAG_ARMV8, "armv8" },
|
|
{ AV_CPU_FLAG_NEON, "neon" },
|
|
{ AV_CPU_FLAG_VFP, "vfp" },
|
|
#elif ARCH_ARM
|
|
{ AV_CPU_FLAG_ARMV5TE, "armv5te" },
|
|
{ AV_CPU_FLAG_ARMV6, "armv6" },
|
|
{ AV_CPU_FLAG_ARMV6T2, "armv6t2" },
|
|
{ AV_CPU_FLAG_VFP, "vfp" },
|
|
{ AV_CPU_FLAG_VFPV3, "vfpv3" },
|
|
{ AV_CPU_FLAG_NEON, "neon" },
|
|
{ AV_CPU_FLAG_SETEND, "setend" },
|
|
#elif ARCH_PPC
|
|
{ AV_CPU_FLAG_ALTIVEC, "altivec" },
|
|
#elif ARCH_X86
|
|
{ AV_CPU_FLAG_MMX, "mmx" },
|
|
{ AV_CPU_FLAG_MMXEXT, "mmxext" },
|
|
{ AV_CPU_FLAG_SSE, "sse" },
|
|
{ AV_CPU_FLAG_SSE2, "sse2" },
|
|
{ AV_CPU_FLAG_SSE2SLOW, "sse2slow" },
|
|
{ AV_CPU_FLAG_SSE3, "sse3" },
|
|
{ AV_CPU_FLAG_SSE3SLOW, "sse3slow" },
|
|
{ AV_CPU_FLAG_SSSE3, "ssse3" },
|
|
{ AV_CPU_FLAG_ATOM, "atom" },
|
|
{ AV_CPU_FLAG_SSE4, "sse4.1" },
|
|
{ AV_CPU_FLAG_SSE42, "sse4.2" },
|
|
{ AV_CPU_FLAG_AVX, "avx" },
|
|
{ AV_CPU_FLAG_XOP, "xop" },
|
|
{ AV_CPU_FLAG_FMA3, "fma3" },
|
|
{ AV_CPU_FLAG_FMA4, "fma4" },
|
|
{ AV_CPU_FLAG_3DNOW, "3dnow" },
|
|
{ AV_CPU_FLAG_3DNOWEXT, "3dnowext" },
|
|
{ AV_CPU_FLAG_CMOV, "cmov" },
|
|
{ AV_CPU_FLAG_AVX2, "avx2" },
|
|
{ AV_CPU_FLAG_BMI1, "bmi1" },
|
|
{ AV_CPU_FLAG_BMI2, "bmi2" },
|
|
#endif
|
|
{ 0 }
|
|
};
|
|
|
|
static void print_cpu_flags(int cpu_flags, const char *type)
|
|
{
|
|
int i;
|
|
|
|
printf("cpu_flags(%s) = 0x%08X\n", type, cpu_flags);
|
|
printf("cpu_flags_str(%s) =", type);
|
|
for (i = 0; cpu_flag_tab[i].flag; i++)
|
|
if (cpu_flags & cpu_flag_tab[i].flag)
|
|
printf(" %s", cpu_flag_tab[i].name);
|
|
printf("\n");
|
|
}
|
|
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
int cpu_flags_raw = av_get_cpu_flags();
|
|
int cpu_flags_eff;
|
|
int cpu_count = av_cpu_count();
|
|
char threads[5] = "auto";
|
|
int i;
|
|
|
|
for(i = 0; cpu_flag_tab[i].flag; i++) {
|
|
unsigned tmp = 0;
|
|
if (av_parse_cpu_caps(&tmp, cpu_flag_tab[i].name) < 0) {
|
|
fprintf(stderr, "Table missing %s\n", cpu_flag_tab[i].name);
|
|
return 4;
|
|
}
|
|
}
|
|
|
|
if (cpu_flags_raw < 0)
|
|
return 1;
|
|
|
|
for (;;) {
|
|
int c = getopt(argc, argv, "c:t:");
|
|
if (c == -1)
|
|
break;
|
|
switch (c) {
|
|
case 'c':
|
|
{
|
|
unsigned flags = av_get_cpu_flags();
|
|
if (av_parse_cpu_caps(&flags, optarg) < 0)
|
|
return 2;
|
|
|
|
av_force_cpu_flags(flags);
|
|
break;
|
|
}
|
|
case 't':
|
|
{
|
|
int len = av_strlcpy(threads, optarg, sizeof(threads));
|
|
if (len >= sizeof(threads)) {
|
|
fprintf(stderr, "Invalid thread count '%s'\n", optarg);
|
|
return 2;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
cpu_flags_eff = av_get_cpu_flags();
|
|
|
|
if (cpu_flags_eff < 0)
|
|
return 3;
|
|
|
|
print_cpu_flags(cpu_flags_raw, "raw");
|
|
print_cpu_flags(cpu_flags_eff, "effective");
|
|
printf("threads = %s (cpu_count = %d)\n", threads, cpu_count);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#endif
|