/* * 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" },#elif ARCH_WASM    { AV_CPU_FLAG_SIMD128,   "simd128"    },#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;}