diff options
author | Mans Rullgard <mans@mansr.com> | 2012-04-25 21:06:51 +0400 |
---|---|---|
committer | Mans Rullgard <mans@mansr.com> | 2012-04-26 02:19:40 +0400 |
commit | 3527a7393392b80e1780cbb24b7d8c91a51a7a18 (patch) | |
tree | 0998bec7d9e36a785627f4fab7c2ba49fa1aef1f /libavutil/cpu.c | |
parent | 3d11c2d76dd8aefca66de20328985dd30d7958f9 (diff) |
avutil: add av_parse_cpu_flags() function
This moves the cpu flag parsing code from avconv to avutil so
it can be accessed elsewhere.
Signed-off-by: Mans Rullgard <mans@mansr.com>
Diffstat (limited to 'libavutil/cpu.c')
-rw-r--r-- | libavutil/cpu.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/libavutil/cpu.c b/libavutil/cpu.c index e23d40180f..d11ff40d83 100644 --- a/libavutil/cpu.c +++ b/libavutil/cpu.c @@ -18,6 +18,7 @@ #include "cpu.h" #include "config.h" +#include "opt.h" static int cpuflags_mask = -1, checked; @@ -44,6 +45,67 @@ void av_set_cpu_flags_mask(int 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" }, + { "altivec" , NULL, 0, AV_OPT_TYPE_CONST, { AV_CPU_FLAG_ALTIVEC }, .unit = "flags" }, + { "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" }, + + { "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" }, + + { 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 |