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| author | Reimar Döffinger <Reimar.Doeffinger@gmx.de> | 2012-02-11 16:04:43 +0100 |
|---|---|---|
| committer | Reimar Döffinger <Reimar.Doeffinger@gmx.de> | 2012-02-12 18:56:06 +0100 |
| commit | b223035511d3431853c1e678d49e2630152c591a (patch) | |
| tree | 61afbfacc486e1268acc93675321c8d01560b0a5 /libavutil/x86/cpu.c | |
| parent | cd1c12b5c5b79195140a93d59cbf990d034f61d8 (diff) | |
| download | ffmpeg-b223035511d3431853c1e678d49e2630152c591a.tar.gz | |
Detect and check for CMOV.
Some MMX-only CPUs do not have support for CMOV.
All SSE/MMX2 CPUs should be fine, thus no check was
added to those functions.
See also https://sourceforge.net/tracker/?func=detail&aid=3358347&group_id=205275&atid=992986
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
Diffstat (limited to 'libavutil/x86/cpu.c')
| -rw-r--r-- | libavutil/x86/cpu.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavutil/x86/cpu.c b/libavutil/x86/cpu.c index 93df737c28..b53379bbd3 100644 --- a/libavutil/x86/cpu.c +++ b/libavutil/x86/cpu.c @@ -83,6 +83,8 @@ int ff_get_cpu_flags_x86(void) cpuid(1, eax, ebx, ecx, std_caps); family = ((eax>>8)&0xf) + ((eax>>20)&0xff); model = ((eax>>4)&0xf) + ((eax>>12)&0xf0); + if (std_caps & (1<<15)) + rval |= AV_CPU_FLAG_CMOV; if (std_caps & (1<<23)) rval |= AV_CPU_FLAG_MMX; if (std_caps & (1<<25)) |