prefetch pixels for future motion compensation. 2-5% faster h264.

Originally committed as revision 5203 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 2 insertions, 0 deletions

diff --git a/libavcodec/dsputil.h b/libavcodec/dsputil.h
index 8fe9be7798..626e6d2d13 100644
--- a/libavcodec/dsputil.h
+++ b/libavcodec/dsputil.h
@@ -343,6 +343,8 @@ typedef struct DSPContext {
     void (*vertical_compose97i)(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, DWTELEM *b3, DWTELEM *b4, DWTELEM *b5, int width);
     void (*horizontal_compose97i)(DWTELEM *b, int width);
     void (*inner_add_yblock)(uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h, int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8);
+
+    void (*prefetch)(void *mem, int stride, int h);
 } DSPContext;
 
 void dsputil_static_init(void);