From 2cf0d46d4c3e4590086ec29860772ea54ccd98e6 Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Thu, 28 Jan 2010 11:12:46 +0000
Subject: [PATCH] Restructure check_mv() ~20 cpu cycles faster loopfilter
Originally committed as revision 21505 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
libavcodec/h264_loopfilter.c | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/libavcodec/h264_loopfilter.c b/libavcodec/h264_loopfilter.c
index 20f846dee4..c9d8aecf1e 100644
--- a/libavcodec/h264_loopfilter.c
+++ b/libavcodec/h264_loopfilter.c
@@ -439,14 +439,13 @@ static int check_mv(H264Context *h, long b_idx, long bn_idx, int mvy_limit){
if(v){
if(h->ref_cache[0][b_idx] != h->ref_cache[1][bn_idx] |
- h->mv_cache[0][b_idx][0] - h->mv_cache[1][bn_idx][0] + 3 >= 7U |
- FFABS( h->mv_cache[0][b_idx][1] - h->mv_cache[1][bn_idx][1] ) >= mvy_limit)
+ h->ref_cache[1][b_idx] != h->ref_cache[0][bn_idx])
return 1;
- if(h->ref_cache[1][b_idx] != h->ref_cache[0][bn_idx] |
+ return
+ h->mv_cache[0][b_idx][0] - h->mv_cache[1][bn_idx][0] + 3 >= 7U |
+ FFABS( h->mv_cache[0][b_idx][1] - h->mv_cache[1][bn_idx][1] ) >= mvy_limit |
h->mv_cache[1][b_idx][0] - h->mv_cache[0][bn_idx][0] + 3 >= 7U |
- FFABS( h->mv_cache[1][b_idx][1] - h->mv_cache[0][bn_idx][1] ) >= mvy_limit)
- return 1;
- return 0;
+ FFABS( h->mv_cache[1][b_idx][1] - h->mv_cache[0][bn_idx][1] ) >= mvy_limit;
}
}
--
2.18.1