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| author | Michael Niedermayer <michaelni@gmx.at> | 2011-02-18 19:10:33 +0100 |
|---|---|---|
| committer | Anton Khirnov <anton@khirnov.net> | 2011-04-03 08:46:19 +0200 |
| commit | 233ed6b314ee6b8d37d16a958f1bc309ae667393 (patch) | |
| tree | 80f624355d5e2d4e5172ebe2290837b52b060128 /libavfilter/vf_yadif.c | |
| parent | 4e3945fd2875c497d25f49a3c35cd6cf6577259e (diff) | |
Change yadif to not use out of picture lines.
Fixes issue2272.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
Diffstat (limited to 'libavfilter/vf_yadif.c')
| -rw-r--r-- | libavfilter/vf_yadif.c | 31 |
1 files changed, 16 insertions, 15 deletions
diff --git a/libavfilter/vf_yadif.c b/libavfilter/vf_yadif.c index e12a3c31b7..176349a5c4 100644 --- a/libavfilter/vf_yadif.c +++ b/libavfilter/vf_yadif.c @@ -50,42 +50,42 @@ typedef struct { AVFilterBufferRef *out; void (*filter_line)(uint8_t *dst, uint8_t *prev, uint8_t *cur, uint8_t *next, - int w, int refs, int parity, int mode); + int w, int prefs, int mrefs, int parity, int mode); } YADIFContext; static void filter_line_c(uint8_t *dst, uint8_t *prev, uint8_t *cur, uint8_t *next, - int w, int refs, int parity, int mode) + int w, int prefs, int mrefs, int parity, int mode) { int x; uint8_t *prev2 = parity ? prev : cur ; uint8_t *next2 = parity ? cur : next; for (x = 0; x < w; x++) { - int c = cur[-refs]; + int c = cur[mrefs]; int d = (prev2[0] + next2[0])>>1; - int e = cur[+refs]; + int e = cur[prefs]; int temporal_diff0 = FFABS(prev2[0] - next2[0]); - int temporal_diff1 =(FFABS(prev[-refs] - c) + FFABS(prev[+refs] - e) )>>1; - int temporal_diff2 =(FFABS(next[-refs] - c) + FFABS(next[+refs] - e) )>>1; + int temporal_diff1 =(FFABS(prev[mrefs] - c) + FFABS(prev[prefs] - e) )>>1; + int temporal_diff2 =(FFABS(next[mrefs] - c) + FFABS(next[prefs] - e) )>>1; int diff = FFMAX3(temporal_diff0>>1, temporal_diff1, temporal_diff2); int spatial_pred = (c+e)>>1; - int spatial_score = FFABS(cur[-refs-1] - cur[+refs-1]) + FFABS(c-e) - + FFABS(cur[-refs+1] - cur[+refs+1]) - 1; + int spatial_score = FFABS(cur[mrefs-1] - cur[prefs-1]) + FFABS(c-e) + + FFABS(cur[mrefs+1] - cur[prefs+1]) - 1; #define CHECK(j)\ - { int score = FFABS(cur[-refs-1+(j)] - cur[+refs-1-(j)])\ - + FFABS(cur[-refs +(j)] - cur[+refs -(j)])\ - + FFABS(cur[-refs+1+(j)] - cur[+refs+1-(j)]);\ + { int score = FFABS(cur[mrefs-1+(j)] - cur[prefs-1-(j)])\ + + FFABS(cur[mrefs +(j)] - cur[prefs -(j)])\ + + FFABS(cur[mrefs+1+(j)] - cur[prefs+1-(j)]);\ if (score < spatial_score) {\ spatial_score= score;\ - spatial_pred= (cur[-refs +(j)] + cur[+refs -(j)])>>1;\ + spatial_pred= (cur[mrefs +(j)] + cur[prefs -(j)])>>1;\ CHECK(-1) CHECK(-2) }} }} CHECK( 1) CHECK( 2) }} }} if (mode < 2) { - int b = (prev2[-2*refs] + next2[-2*refs])>>1; - int f = (prev2[+2*refs] + next2[+2*refs])>>1; + int b = (prev2[2*mrefs] + next2[2*mrefs])>>1; + int f = (prev2[2*prefs] + next2[2*prefs])>>1; #if 0 int a = cur[-3*refs]; int g = cur[+3*refs]; @@ -133,7 +133,8 @@ static void filter(AVFilterContext *ctx, AVFilterBufferRef *dstpic, uint8_t *cur = &yadif->cur ->data[i][y*refs]; uint8_t *next = &yadif->next->data[i][y*refs]; uint8_t *dst = &dstpic->data[i][y*dstpic->linesize[i]]; - yadif->filter_line(dst, prev, cur, next, w, refs, parity ^ tff, yadif->mode); + int mode = y==1 || y+2==h ? 2 : yadif->mode; + yadif->filter_line(dst, prev, cur, next, w, y+1<h ? refs : -refs, y ? -refs : refs, parity ^ tff, mode); } else { memcpy(&dstpic->data[i][y*dstpic->linesize[i]], &yadif->cur->data[i][y*refs], w); |