* 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
+#define _GNU_SOURCE
+#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_SYSCONF
+#include <unistd.h>
+#endif
+
+static int cpuflags_mask = -1, checked;
int av_get_cpu_flags(void)
{
- static int flags, checked;
+ static int flags;
if (checked)
return flags;
- 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();
+ 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();
+ flags &= cpuflags_mask;
checked = 1;
+
return flags;
}
-#ifdef TEST
-
-#undef printf
-#include <stdio.h>
+void av_set_cpu_flags_mask(int mask)
+{
+ cpuflags_mask = mask;
+ checked = 0;
+}
-int main(void)
+int av_parse_cpu_flags(const char *s)
{
- int cpu_flags = av_get_cpu_flags();
-
- printf("cpu_flags = 0x%08X\n", cpu_flags);
- printf("cpu_flags = %s%s%s%s%s%s%s%s%s%s%s%s%s\n",
-#if ARCH_ARM
- cpu_flags & AV_CPU_FLAG_IWMMXT ? "IWMMXT " : "",
-#elif ARCH_PPC
- cpu_flags & AV_CPU_FLAG_ALTIVEC ? "ALTIVEC " : "",
+#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_AVXSLOW (AV_CPU_FLAG_AVXSLOW | CPUFLAG_AVX)
+#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_BMI2 (AV_CPU_FLAG_BMI2 | AV_CPU_FLAG_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
- cpu_flags & AV_CPU_FLAG_MMX ? "MMX " : "",
- cpu_flags & AV_CPU_FLAG_MMX2 ? "MMX2 " : "",
- cpu_flags & AV_CPU_FLAG_SSE ? "SSE " : "",
- cpu_flags & AV_CPU_FLAG_SSE2 ? "SSE2 " : "",
- cpu_flags & AV_CPU_FLAG_SSE2SLOW ? "SSE2(slow) " : "",
- cpu_flags & AV_CPU_FLAG_SSE3 ? "SSE3 " : "",
- cpu_flags & AV_CPU_FLAG_SSE3SLOW ? "SSE3(slow) " : "",
- cpu_flags & AV_CPU_FLAG_SSSE3 ? "SSSE3 " : "",
- cpu_flags & AV_CPU_FLAG_SSE4 ? "SSE4.1 " : "",
- cpu_flags & AV_CPU_FLAG_SSE42 ? "SSE4.2 " : "",
- cpu_flags & AV_CPU_FLAG_AVX ? "AVX " : "",
- cpu_flags & AV_CPU_FLAG_3DNOW ? "3DNow " : "",
- cpu_flags & AV_CPU_FLAG_3DNOWEXT ? "3DNowExt " : "");
+ { "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" },
+ { "avxslow" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_AVXSLOW }, .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 = AV_CPU_FLAG_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" },
+ { "vfp_vm", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_VFP_VM }, .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
- return 0;
+ { 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_cpu_count(void)
+{
+ 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
+
+ return nb_cpus;
+}
projects / ffmpeg / blobdiff