From 3518c5a96b0417f6e66bd0c8c64bd2b32d936064 Mon Sep 17 00:00:00 2001
From: Alexander Strange <astrange@ithinksw.com>
Date: Mon, 18 Feb 2008 21:35:31 +0000
Subject: [PATCH] fix crash on non-AltiVec powered machines:
 MPV_common_init_altivec doesn't check mm_flags Patch by Alexander Strange
 %astrange A ithinksw PP com %

Originally committed as revision 12137 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavcodec/ppc/mpegvideo_altivec.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libavcodec/ppc/mpegvideo_altivec.c b/libavcodec/ppc/mpegvideo_altivec.c
index 0901ab5e10..3c4610df40 100644
--- a/libavcodec/ppc/mpegvideo_altivec.c
+++ b/libavcodec/ppc/mpegvideo_altivec.c
@@ -608,6 +608,8 @@ extern void idct_add_altivec(uint8_t *dest, int line_size, int16_t *block);
 
 void MPV_common_init_altivec(MpegEncContext *s)
 {
+     if (mm_flags & MM_ALTIVEC == 0) return;
+
     if (s->avctx->lowres==0)
     {
         if ((s->avctx->idct_algo == FF_IDCT_AUTO) ||