[FFmpeg-cvslog] dirac: Only use MMX if MMX is available.

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Mon Jan 28 20:00:55 2013 +0100| [5c9cae744752932d46fd847fa4161790620daccf] | committer: Michael Niedermayer

dirac: Only use MMX if MMX is available.

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=5c9cae744752932d46fd847fa4161790620daccf
---

 libavcodec/x86/diracdsp_mmx.c |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/libavcodec/x86/diracdsp_mmx.c b/libavcodec/x86/diracdsp_mmx.c
index ee89295..cb6465f 100644
--- a/libavcodec/x86/diracdsp_mmx.c
+++ b/libavcodec/x86/diracdsp_mmx.c
@@ -60,6 +60,9 @@ void ff_diracdsp_init_mmx(DiracDSPContext* c)
 {
     int mm_flags = av_get_cpu_flags();
 
+    if (!(mm_flags & AV_CPU_FLAG_MMX))
+        return;
+
 #if HAVE_YASM
     c->add_dirac_obmc[0] = ff_add_dirac_obmc8_mmx;
 #if !ARCH_X86_64