2 * This file is part of Libav.
4 * Libav is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
9 * Libav is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with Libav; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 int av_get_cpu_flags(void)
24 static int flags, checked;
29 if (ARCH_ARM) flags = ff_get_cpu_flags_arm();
30 if (ARCH_PPC) flags = ff_get_cpu_flags_ppc();
31 if (ARCH_X86) flags = ff_get_cpu_flags_x86();
47 { AV_CPU_FLAG_IWMMXT, "iwmmxt" },
49 { AV_CPU_FLAG_ALTIVEC, "altivec" },
51 { AV_CPU_FLAG_MMX, "mmx" },
52 { AV_CPU_FLAG_MMX2, "mmx2" },
53 { AV_CPU_FLAG_SSE, "sse" },
54 { AV_CPU_FLAG_SSE2, "sse2" },
55 { AV_CPU_FLAG_SSE2SLOW, "sse2(slow)" },
56 { AV_CPU_FLAG_SSE3, "sse3" },
57 { AV_CPU_FLAG_SSE3SLOW, "sse3(slow)" },
58 { AV_CPU_FLAG_SSSE3, "ssse3" },
59 { AV_CPU_FLAG_ATOM, "atom" },
60 { AV_CPU_FLAG_SSE4, "sse4.1" },
61 { AV_CPU_FLAG_SSE42, "sse4.2" },
62 { AV_CPU_FLAG_AVX, "avx" },
63 { AV_CPU_FLAG_XOP, "xop" },
64 { AV_CPU_FLAG_FMA4, "fma4" },
65 { AV_CPU_FLAG_3DNOW, "3dnow" },
66 { AV_CPU_FLAG_3DNOWEXT, "3dnowext" },
73 int cpu_flags = av_get_cpu_flags();
76 printf("cpu_flags = 0x%08X\n", cpu_flags);
77 printf("cpu_flags =");
78 for (i = 0; cpu_flag_tab[i].flag; i++)
79 if (cpu_flags & cpu_flag_tab[i].flag)
80 printf(" %s", cpu_flag_tab[i].name);