[SCM] libav/experimental: Split *_type setting up, 4 cpu cycles faster.

siretart at users.alioth.debian.org siretart at users.alioth.debian.org
Sun Jun 30 17:01:57 UTC 2013


The following commit has been merged in the experimental branch:
commit 82fb5bb2ee991405e7cd60c961b2df0605ce3a18
Author: Michael Niedermayer <michaelni at gmx.at>
Date:   Sat Feb 27 03:46:16 2010 +0000

    Split *_type setting up, 4 cpu cycles faster.
    
    Originally committed as revision 22085 to svn://svn.ffmpeg.org/ffmpeg/trunk

diff --git a/libavcodec/h264.h b/libavcodec/h264.h
index 5eae1e2..d4d87b1 100644
--- a/libavcodec/h264.h
+++ b/libavcodec/h264.h
@@ -811,11 +811,18 @@ static void fill_decode_neighbors(H264Context *h, int mb_type){
     h->left_mb_xy[0] = left_xy[0];
     h->left_mb_xy[1] = left_xy[1];
     //FIXME do we need all in the context?
-    h->topleft_type = h->slice_table[topleft_xy ] == h->slice_num ? s->current_picture.mb_type[topleft_xy] : 0;
-    h->top_type     = h->slice_table[top_xy     ] == h->slice_num ? s->current_picture.mb_type[top_xy]     : 0;
-    h->topright_type= h->slice_table[topright_xy] == h->slice_num ? s->current_picture.mb_type[topright_xy]: 0;
-    h->left_type[0] = h->slice_table[left_xy[0] ] == h->slice_num ? s->current_picture.mb_type[left_xy[0]] : 0;
-    h->left_type[1] = h->slice_table[left_xy[1] ] == h->slice_num ? s->current_picture.mb_type[left_xy[1]] : 0;
+
+    h->topleft_type = s->current_picture.mb_type[topleft_xy] ;
+    h->top_type     = s->current_picture.mb_type[top_xy]     ;
+    h->topright_type= s->current_picture.mb_type[topright_xy];
+    h->left_type[0] = s->current_picture.mb_type[left_xy[0]] ;
+    h->left_type[1] = s->current_picture.mb_type[left_xy[1]] ;
+
+    if(h->slice_table[topleft_xy ] != h->slice_num) h->topleft_type = 0;
+    if(h->slice_table[top_xy     ] != h->slice_num) h->top_type     = 0;
+    if(h->slice_table[topright_xy] != h->slice_num) h->topright_type= 0;
+    if(h->slice_table[left_xy[0] ] != h->slice_num) h->left_type[0] = 0;
+    if(h->slice_table[left_xy[1] ] != h->slice_num) h->left_type[1] = 0;
 }
 
 static void fill_decode_caches(H264Context *h, int mb_type){

-- 
Libav/FFmpeg packaging



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