Cache detected CPU flags

Originally committed as revision 25085 to svn://svn.ffmpeg.org/ffmpeg/trunk
oldabi
Måns Rullgård 14 years ago
parent 9275438a19
commit a3f0d2b967
  1. 15
      libavutil/cpu.c

@ -21,10 +21,17 @@
int av_get_cpu_flags(void)
{
if (ARCH_ARM) return ff_get_cpu_flags_arm();
if (ARCH_PPC) return ff_get_cpu_flags_ppc();
if (ARCH_X86) return ff_get_cpu_flags_x86();
return 0;
static int flags, checked;
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();
checked = 1;
return flags;
}
#ifdef TEST

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