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Diffstat (limited to 'libavutil/tests/cpu.c')
| -rw-r--r-- | libavutil/tests/cpu.c | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/libavutil/tests/cpu.c b/libavutil/tests/cpu.c new file mode 100644 index 0000000000..f02a54cbbb --- /dev/null +++ b/libavutil/tests/cpu.c @@ -0,0 +1,147 @@ +/* + * 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 <stdio.h> + +#include "config.h" + +#include "libavutil/cpu.h" +#include "libavutil/avstring.h" + +#if HAVE_UNISTD_H +#include <unistd.h> +#endif +#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_VFP_VM, "vfp_vm" }, + { 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_AVXSLOW, "avxslow" }, + { 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" }, + { AV_CPU_FLAG_AESNI, "aesni" }, +#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; +} |