* 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;
}
+void av_set_cpu_flags_mask(int mask)
+{
+ cpuflags_mask = mask;
+ checked = 0;
+}
+
+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_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;
+}
+
#ifdef TEST
-#undef printf
#include <stdio.h>
+#if HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#include "avstring.h"
+
+#if !HAVE_GETOPT
+#include "compat/getopt.c"
+#endif
static const struct {
int flag;
const char *name;
} cpu_flag_tab[] = {
-#if ARCH_ARM
- { AV_CPU_FLAG_IWMMXT, "iwmmxt" },
+#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" },
#elif ARCH_PPC
{ AV_CPU_FLAG_ALTIVEC, "altivec" },
#elif ARCH_X86
{ AV_CPU_FLAG_MMX, "mmx" },
- { AV_CPU_FLAG_MMX2, "mmx2" },
+ { AV_CPU_FLAG_MMXEXT, "mmxext" },
{ AV_CPU_FLAG_SSE, "sse" },
{ AV_CPU_FLAG_SSE2, "sse2" },
{ AV_CPU_FLAG_SSE2SLOW, "sse2(slow)" },
{ 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 }
};
-int main(void)
+static void print_cpu_flags(int cpu_flags, const char *type)
{
- int cpu_flags = av_get_cpu_flags();
int i;
- printf("cpu_flags = 0x%08X\n", cpu_flags);
- printf("cpu_flags =");
+ fprintf(stderr, "cpu_flags(%s) = 0x%08X\n", type, cpu_flags);
+ fprintf(stderr, "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");
+ fprintf(stderr, " %s", cpu_flag_tab[i].name);
+ fprintf(stderr, "\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";
+
+ if (cpu_flags_raw < 0)
+ return 1;
+
+ for (;;) {
+ int c = getopt(argc, argv, "c:t:");
+ if (c == -1)
+ break;
+ switch (c) {
+ case 'c':
+ {
+ int cpuflags = av_parse_cpu_flags(optarg);
+ if (cpuflags < 0)
+ return 2;
+ av_set_cpu_flags_mask(cpuflags);
+ 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");
+ fprintf(stderr, "threads = %s (cpu_count = %d)\n", threads, cpu_count);
return 0;
}
projects / ffmpeg / blobdiff