137 lines
4.0 KiB
C
137 lines
4.0 KiB
C
/*
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* This file is part of Libav.
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*
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* Libav is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* Libav is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with Libav; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "config.h"
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#if HAVE_UNISTD_H
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#include <unistd.h>
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#elif !HAVE_GETOPT
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#include "compat/getopt.c"
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#endif
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#include <stdint.h>
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#include <stdio.h>
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#include "libavutil/avstring.h"
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#include "libavutil/common.h"
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#include "libavutil/cpu.h"
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static const struct {
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int flag;
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const char *name;
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} cpu_flag_tab[] = {
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#if ARCH_AARCH64
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{ AV_CPU_FLAG_ARMV8, "armv8" },
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{ AV_CPU_FLAG_NEON, "neon" },
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{ AV_CPU_FLAG_VFP, "vfp" },
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#elif ARCH_ARM
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{ AV_CPU_FLAG_ARMV5TE, "armv5te" },
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{ AV_CPU_FLAG_ARMV6, "armv6" },
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{ AV_CPU_FLAG_ARMV6T2, "armv6t2" },
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{ AV_CPU_FLAG_VFP, "vfp" },
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{ AV_CPU_FLAG_VFP_VM, "vfp_vm" },
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{ AV_CPU_FLAG_VFPV3, "vfpv3" },
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{ AV_CPU_FLAG_NEON, "neon" },
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#elif ARCH_PPC
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{ AV_CPU_FLAG_ALTIVEC, "altivec" },
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#elif ARCH_X86
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{ AV_CPU_FLAG_MMX, "mmx" },
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{ AV_CPU_FLAG_MMXEXT, "mmxext" },
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{ AV_CPU_FLAG_SSE, "sse" },
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{ AV_CPU_FLAG_SSE2, "sse2" },
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{ AV_CPU_FLAG_SSE2SLOW, "sse2(slow)" },
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{ AV_CPU_FLAG_SSE3, "sse3" },
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{ AV_CPU_FLAG_SSE3SLOW, "sse3(slow)" },
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{ AV_CPU_FLAG_SSSE3, "ssse3" },
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{ AV_CPU_FLAG_ATOM, "atom" },
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{ AV_CPU_FLAG_SSE4, "sse4.1" },
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{ AV_CPU_FLAG_SSE42, "sse4.2" },
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{ AV_CPU_FLAG_AVX, "avx" },
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{ AV_CPU_FLAG_AVXSLOW, "avxslow" },
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{ AV_CPU_FLAG_XOP, "xop" },
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{ AV_CPU_FLAG_FMA3, "fma3" },
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{ AV_CPU_FLAG_FMA4, "fma4" },
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{ AV_CPU_FLAG_3DNOW, "3dnow" },
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{ AV_CPU_FLAG_3DNOWEXT, "3dnowext" },
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{ AV_CPU_FLAG_CMOV, "cmov" },
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{ AV_CPU_FLAG_AVX2, "avx2" },
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{ AV_CPU_FLAG_BMI1, "bmi1" },
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{ AV_CPU_FLAG_BMI2, "bmi2" },
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#endif
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{ 0 }
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};
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static void print_cpu_flags(int cpu_flags, const char *type)
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{
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int i;
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fprintf(stderr, "cpu_flags(%s) = 0x%08X\n", type, cpu_flags);
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fprintf(stderr, "cpu_flags_str(%s) =", type);
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for (i = 0; cpu_flag_tab[i].flag; i++)
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if (cpu_flags & cpu_flag_tab[i].flag)
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fprintf(stderr, " %s", cpu_flag_tab[i].name);
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fprintf(stderr, "\n");
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}
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int main(int argc, char **argv)
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{
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int cpu_flags_raw = av_get_cpu_flags();
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int cpu_flags_eff;
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int cpu_count = av_cpu_count();
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char threads[5] = "auto";
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if (cpu_flags_raw < 0)
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return 1;
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for (;;) {
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int c = getopt(argc, argv, "c:t:");
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if (c == -1)
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break;
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switch (c) {
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case 'c':
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{
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int cpuflags = av_parse_cpu_flags(optarg);
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if (cpuflags < 0)
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return 2;
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av_set_cpu_flags_mask(cpuflags);
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break;
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}
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case 't':
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{
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int len = av_strlcpy(threads, optarg, sizeof(threads));
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if (len >= sizeof(threads)) {
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fprintf(stderr, "Invalid thread count '%s'\n", optarg);
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return 2;
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}
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}
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}
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}
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cpu_flags_eff = av_get_cpu_flags();
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if (cpu_flags_eff < 0)
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return 3;
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print_cpu_flags(cpu_flags_raw, "raw");
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print_cpu_flags(cpu_flags_eff, "effective");
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fprintf(stderr, "threads = %s (cpu_count = %d)\n", threads, cpu_count);
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return 0;
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}
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