From 42c1f6dbf4771975654f48122e1b27e633d90412 Mon Sep 17 00:00:00 2001
From: Jingning Han <jingning@google.com>
Date: Wed, 16 Apr 2014 15:43:38 -0700
Subject: [PATCH] Skip fetching original frame pointers for UV in background
check
The background detection only tracks luma component. This commits
removes the frame buffer pointer retrieval for chroma components.
Change-Id: I098bd2950f5e5829ed5dc2b48568167248da7fad
---
vp9/encoder/vp9_encodeframe.c | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)
diff --git a/vp9/encoder/vp9_encodeframe.c b/vp9/encoder/vp9_encodeframe.c
index feaf7043a3..213f3a91f0 100644
--- a/vp9/encoder/vp9_encodeframe.c
+++ b/vp9/encoder/vp9_encodeframe.c
@@ -1273,7 +1273,6 @@ static void set_source_var_based_partition(VP9_COMP *cpi,
static int is_background(VP9_COMP *cpi, const TileInfo *const tile,
int mi_row, int mi_col) {
- MACROBLOCK *const x = &cpi->mb;
uint8_t *src, *pre;
int src_stride, pre_stride;
@@ -1283,11 +1282,10 @@ static int is_background(VP9_COMP *cpi, const TileInfo *const tile,
int this_sad = 0;
int threshold = 0;
- vp9_setup_src_planes(x, cpi->Source, mi_row, mi_col);
-
- src_stride = x->plane[0].src.stride;
- src = x->plane[0].src.buf;
-
+ // This assumes the input source frames are of the same dimension.
+ src_stride = cpi->Source->y_stride;
+ src = cpi->Source->y_buffer + (mi_row * MI_SIZE) * src_stride +
+ (mi_col * MI_SIZE);
pre_stride = cpi->Last_Source->y_stride;
pre = cpi->Last_Source->y_buffer + (mi_row * MI_SIZE) * pre_stride +
(mi_col * MI_SIZE);
--
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