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Fix out-of-bounds detection in mv-search.

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All blocks were intra because no movement vectors could be found.
This commit is contained in:
Ari Koivula 2013-09-30 10:47:05 +03:00
parent 571fec7c39
commit f58e418a1a
1 changed files with 8 additions and 6 deletions
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14
src/search.c
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@ -30,7 +30,10 @@
#define USE_FULL_SEARCH 0
#define USE_CHROMA_IN_MV_SEARCH 0
#define IN_FRAME(x, y, width, height, block) ((x) >= 0 && (y) >= 0 && (x) + (block) <= (width) && (y) + (block) <= (height))
#define IN_FRAME(x, y, width, height, block_width, block_height) \
((x) >= 0 && (y) >= 0 \
&& (x) + (block_width) <= (width) \
&& (y) + (block_height) <= (height))
/**
@ -52,16 +55,15 @@ unsigned get_block_sad(picture *pic, picture *ref,
uint8_t *pic_data, *ref_data;
int width = pic->width;
int height = pic->height;
int block = pic->width;
unsigned result = 1; // Start from 1 so result is never 0.
// 0 means invalid, for now.
if (!IN_FRAME(ref_x, ref_y, width, height, block)) return 0;
if (!IN_FRAME(ref_x, ref_y, width, height, block_width, block_height)) return 0;
pic_data = &pic->y_data[pic_y * width + pic_x];
ref_data = &ref->y_data[ref_y * width + ref_x];
result += sad(pic_data, ref_data, block, block, width);
result += sad(pic_data, ref_data, block_width, block_height, width);
#if USE_CHROMA_IN_MV_SEARCH
// Halve everything because chroma is half the resolution.
@ -74,11 +76,11 @@ unsigned get_block_sad(picture *pic, picture *ref,
pic_data = &pic->u_data[pic_y * width + pic_x];
ref_data = &ref->u_data[ref_y * width + ref_x];
result += sad(pic_data, ref_data, block, block, width);
result += sad(pic_data, ref_data, block_width, block_height, width);
pic_data = &pic->v_data[pic_y * width + pic_x];
ref_data = &ref->v_data[ref_y * width + ref_x];
result += sad(pic_data, ref_data, block, block, width);
result += sad(pic_data, ref_data, block_width, block_height, width);
#endif
return result;