[Ffmpeg-cvslog] r6664 - trunk/libavcodec/h264.c

[lorenm]

Author: lorenm
Date: Wed Oct 11 23:34:15 2006
New Revision: 6664

Modified:
   trunk/libavcodec/h264.c

Log:
more prefetches, 2% faster h264


Modified: trunk/libavcodec/h264.c
==============================================================================
--- trunk/libavcodec/h264.c	(original)
+++ trunk/libavcodec/h264.c	Wed Oct 11 23:34:15 2006
@@ -3639,6 +3639,9 @@
     dest_cb = s->current_picture.data[1] + (mb_y * 8 * s->uvlinesize) + mb_x * 8;
     dest_cr = s->current_picture.data[2] + (mb_y * 8 * s->uvlinesize) + mb_x * 8;
 
+    s->dsp.prefetch(dest_y + (s->mb_x&3)*4*s->linesize + 64, s->linesize, 4);
+    s->dsp.prefetch(dest_cb + (s->mb_x&7)*s->uvlinesize + 64, dest_cr - dest_cb, 2);
+
     if (MB_FIELD) {
         linesize   = h->mb_linesize   = s->linesize * 2;
         uvlinesize = h->mb_uvlinesize = s->uvlinesize * 2;