/*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav 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,
+ * Libav 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
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "cpu.h"
#include "config.h"
+#include "opt.h"
+
+static int cpuflags_mask = -1, checked;
-#if ARCH_ARM
-# include "arm/cpu.h"
-#elif ARCH_PPC
-# include "ppc/cpu.h"
-#elif ARCH_X86
-# include "x86/cpu.h"
-#else
int av_get_cpu_flags(void)
{
- return 0;
+ static int flags;
+
+ if (checked)
+ return flags;
+
+ if (ARCH_ARM) flags = ff_get_cpu_flags_arm();
+ if (ARCH_PPC) flags = ff_get_cpu_flags_ppc();
+ if (ARCH_X86) flags = ff_get_cpu_flags_x86();
+
+ flags &= cpuflags_mask;
+ checked = 1;
+
+ return flags;
+}
+
+void av_set_cpu_flags_mask(int mask)
+{
+ cpuflags_mask = mask;
+ checked = 0;
}
+
+int av_parse_cpu_flags(const char *s)
+{
+#define CPUFLAG_MMX2 (AV_CPU_FLAG_MMX | AV_CPU_FLAG_MMX2)
+#define CPUFLAG_3DNOW (AV_CPU_FLAG_3DNOW | AV_CPU_FLAG_MMX)
+#define CPUFLAG_3DNOWEXT (AV_CPU_FLAG_3DNOWEXT | CPUFLAG_3DNOW)
+#define CPUFLAG_SSE (AV_CPU_FLAG_SSE | CPUFLAG_MMX2)
+#define CPUFLAG_SSE2 (AV_CPU_FLAG_SSE2 | CPUFLAG_SSE)
+#define CPUFLAG_SSE2SLOW (AV_CPU_FLAG_SSE2SLOW | CPUFLAG_SSE2)
+#define CPUFLAG_SSE3 (AV_CPU_FLAG_SSE3 | CPUFLAG_SSE2)
+#define CPUFLAG_SSE3SLOW (AV_CPU_FLAG_SSE3SLOW | CPUFLAG_SSE3)
+#define CPUFLAG_SSSE3 (AV_CPU_FLAG_SSSE3 | CPUFLAG_SSE3)
+#define CPUFLAG_SSE4 (AV_CPU_FLAG_SSE4 | CPUFLAG_SSSE3)
+#define CPUFLAG_SSE42 (AV_CPU_FLAG_SSE42 | CPUFLAG_SSE4)
+#define CPUFLAG_AVX (AV_CPU_FLAG_AVX | CPUFLAG_SSE42)
+#define CPUFLAG_XOP (AV_CPU_FLAG_XOP | CPUFLAG_AVX)
+#define CPUFLAG_FMA4 (AV_CPU_FLAG_FMA4 | CPUFLAG_AVX)
+ static const AVOption cpuflags_opts[] = {
+ { "flags" , NULL, 0, AV_OPT_TYPE_FLAGS, { 0 }, INT64_MIN, INT64_MAX, .unit = "flags" },
+#if ARCH_PPC
+ { "altivec" , NULL, 0, AV_OPT_TYPE_CONST, { AV_CPU_FLAG_ALTIVEC }, .unit = "flags" },
+#elif ARCH_X86
+ { "mmx" , NULL, 0, AV_OPT_TYPE_CONST, { AV_CPU_FLAG_MMX }, .unit = "flags" },
+ { "mmx2" , NULL, 0, AV_OPT_TYPE_CONST, { CPUFLAG_MMX2 }, .unit = "flags" },
+ { "sse" , NULL, 0, AV_OPT_TYPE_CONST, { CPUFLAG_SSE }, .unit = "flags" },
+ { "sse2" , NULL, 0, AV_OPT_TYPE_CONST, { CPUFLAG_SSE2 }, .unit = "flags" },
+ { "sse2slow", NULL, 0, AV_OPT_TYPE_CONST, { CPUFLAG_SSE2SLOW }, .unit = "flags" },
+ { "sse3" , NULL, 0, AV_OPT_TYPE_CONST, { CPUFLAG_SSE3 }, .unit = "flags" },
+ { "sse3slow", NULL, 0, AV_OPT_TYPE_CONST, { CPUFLAG_SSE3SLOW }, .unit = "flags" },
+ { "ssse3" , NULL, 0, AV_OPT_TYPE_CONST, { CPUFLAG_SSSE3 }, .unit = "flags" },
+ { "atom" , NULL, 0, AV_OPT_TYPE_CONST, { AV_CPU_FLAG_ATOM }, .unit = "flags" },
+ { "sse4.1" , NULL, 0, AV_OPT_TYPE_CONST, { CPUFLAG_SSE4 }, .unit = "flags" },
+ { "sse4.2" , NULL, 0, AV_OPT_TYPE_CONST, { CPUFLAG_SSE42 }, .unit = "flags" },
+ { "avx" , NULL, 0, AV_OPT_TYPE_CONST, { CPUFLAG_AVX }, .unit = "flags" },
+ { "xop" , NULL, 0, AV_OPT_TYPE_CONST, { CPUFLAG_XOP }, .unit = "flags" },
+ { "fma4" , NULL, 0, AV_OPT_TYPE_CONST, { CPUFLAG_FMA4 }, .unit = "flags" },
+ { "3dnow" , NULL, 0, AV_OPT_TYPE_CONST, { CPUFLAG_3DNOW }, .unit = "flags" },
+ { "3dnowext", NULL, 0, AV_OPT_TYPE_CONST, { CPUFLAG_3DNOWEXT }, .unit = "flags" },
+#elif ARCH_ARM
+ { "armv5te", NULL, 0, AV_OPT_TYPE_CONST, { AV_CPU_FLAG_ARMV5TE }, .unit = "flags" },
+ { "armv6", NULL, 0, AV_OPT_TYPE_CONST, { AV_CPU_FLAG_ARMV6 }, .unit = "flags" },
+ { "armv6t2", NULL, 0, AV_OPT_TYPE_CONST, { AV_CPU_FLAG_ARMV6T2 }, .unit = "flags" },
+ { "vfp", NULL, 0, AV_OPT_TYPE_CONST, { AV_CPU_FLAG_VFP }, .unit = "flags" },
+ { "vfpv3", NULL, 0, AV_OPT_TYPE_CONST, { AV_CPU_FLAG_VFPV3 }, .unit = "flags" },
+ { "neon", NULL, 0, AV_OPT_TYPE_CONST, { AV_CPU_FLAG_NEON }, .unit = "flags" },
#endif
+ { NULL },
+ };
+ static const AVClass class = {
+ .class_name = "cpuflags",
+ .item_name = av_default_item_name,
+ .option = cpuflags_opts,
+ .version = LIBAVUTIL_VERSION_INT,
+ };
+
+ int flags = 0, ret;
+ const AVClass *pclass = &class;
+
+ if ((ret = av_opt_eval_flags(&pclass, &cpuflags_opts[0], s, &flags)) < 0)
+ return ret;
+
+ return flags & INT_MAX;
+}
#ifdef TEST
#undef printf
+#include <stdio.h>
+
+static const struct {
+ int flag;
+ const char *name;
+} cpu_flag_tab[] = {
+#if 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_VFPV3, "vfpv3" },
+ { AV_CPU_FLAG_NEON, "neon" },
+#elif ARCH_PPC
+ { AV_CPU_FLAG_ALTIVEC, "altivec" },
+#elif ARCH_X86
+ { AV_CPU_FLAG_MMX, "mmx" },
+ { AV_CPU_FLAG_MMX2, "mmx2" },
+ { AV_CPU_FLAG_SSE, "sse" },
+ { AV_CPU_FLAG_SSE2, "sse2" },
+ { AV_CPU_FLAG_SSE2SLOW, "sse2(slow)" },
+ { AV_CPU_FLAG_SSE3, "sse3" },
+ { AV_CPU_FLAG_SSE3SLOW, "sse3(slow)" },
+ { 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_XOP, "xop" },
+ { AV_CPU_FLAG_FMA4, "fma4" },
+ { AV_CPU_FLAG_3DNOW, "3dnow" },
+ { AV_CPU_FLAG_3DNOWEXT, "3dnowext" },
+#endif
+ { 0 }
+};
int main(void)
{
int cpu_flags = av_get_cpu_flags();
+ int i;
printf("cpu_flags = 0x%08X\n", cpu_flags);
- printf("cpu_flags = %s%s%s%s%s%s%s%s%s%s%s%s\n",
-#if ARCH_ARM
- cpu_flags & AV_CPU_FLAG_IWMMXT ? "IWMMXT " : "",
-#elif ARCH_PPC
- cpu_flags & AV_CPU_FLAG_ALTIVEC ? "ALTIVEC " : "",
-#elif ARCH_X86
- cpu_flags & AV_CPU_FLAG_MMX ? "MMX " : "",
- cpu_flags & AV_CPU_FLAG_MMX2 ? "MMX2 " : "",
- cpu_flags & AV_CPU_FLAG_SSE ? "SSE " : "",
- cpu_flags & AV_CPU_FLAG_SSE2 ? "SSE2 " : "",
- cpu_flags & AV_CPU_FLAG_SSE2SLOW ? "SSE2(slow) " : "",
- cpu_flags & AV_CPU_FLAG_SSE3 ? "SSE3 " : "",
- cpu_flags & AV_CPU_FLAG_SSE3SLOW ? "SSE3(slow) " : "",
- cpu_flags & AV_CPU_FLAG_SSSE3 ? "SSSE3 " : "",
- cpu_flags & AV_CPU_FLAG_SSE4 ? "SSE4.1 " : "",
- cpu_flags & AV_CPU_FLAG_SSE42 ? "SSE4.2 " : "",
- cpu_flags & AV_CPU_FLAG_3DNOW ? "3DNow " : "",
- cpu_flags & AV_CPU_FLAG_3DNOWEXT ? "3DNowExt " : "");
-#endif
+ printf("cpu_flags =");
+ 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");
+
return 0;
}
projects / ffmpeg / blobdiff