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/*
* 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 ARCH_AARCH64
#include "libavutil/aarch64/cpu.h"
#elif ARCH_RISCV
#include "libavutil/riscv/cpu.h"
#endif
#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" },
{ AV_CPU_FLAG_DOTPROD, "dotprod" },
{ AV_CPU_FLAG_I8MM, "i8mm" },
{ AV_CPU_FLAG_SVE, "sve" },
{ AV_CPU_FLAG_SVE2, "sve2" },
#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" },
{ AV_CPU_FLAG_VSX, "vsx" },
{ AV_CPU_FLAG_POWER8, "power8" },
#elif ARCH_MIPS
{ AV_CPU_FLAG_MMI, "mmi" },
{ AV_CPU_FLAG_MSA, "msa" },
#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" },
{ AV_CPU_FLAG_AVX512, "avx512" },
{ AV_CPU_FLAG_AVX512ICL, "avx512icl" },
{ AV_CPU_FLAG_SLOW_GATHER, "slowgather" },
#elif ARCH_LOONGARCH
{ AV_CPU_FLAG_LSX, "lsx" },
{ AV_CPU_FLAG_LASX, "lasx" },
#elif ARCH_RISCV
{ AV_CPU_FLAG_RVI, "rvi" },
{ AV_CPU_FLAG_RVB_BASIC, "zbb" },
{ AV_CPU_FLAG_RVB, "rvb" },
{ AV_CPU_FLAG_RVV_I32, "zve32x" },
{ AV_CPU_FLAG_RVV_F32, "zve32f" },
{ AV_CPU_FLAG_RVV_I64, "zve64x" },
{ AV_CPU_FLAG_RVV_F64, "zve64d" },
{ AV_CPU_FLAG_RV_ZVBB, "zvbb" },
{ AV_CPU_FLAG_RV_MISALIGNED, "misaligned" },
#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();
const char *threads = "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':
{
threads = optarg;
}
}
}
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);
#if ARCH_AARCH64 && HAVE_SVE
if (cpu_flags_raw & AV_CPU_FLAG_SVE)
printf("sve_vector_length = %d\n", 8 * ff_aarch64_sve_length());
#elif ARCH_RISCV && HAVE_RVV
if (cpu_flags_raw & AV_CPU_FLAG_RVV_I32) {
size_t bytes = ff_get_rv_vlenb();
printf("rv_vlenb = %zu (%zu bits)\n", bytes, 8 * bytes);
}
#endif
return 0;
}
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