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Code Issues Releases Activity

Support 16-bit in yadif

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James Darnley 2010-11-24 21:25:09 +01:00 committed by Michael Niedermayer
parent 257ac5f1d6
commit 457be6962b
1 changed files with 71 additions and 1 deletions
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72
libavfilter/vf_yadif.c
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@ -118,6 +118,69 @@ static void filter_line_c(uint8_t *dst,
}
}
static void filter_line_c_16bit(uint16_t *dst,
uint16_t *prev, uint16_t *cur, uint16_t *next,
int w, int refs, int parity, int mode)
{
int x;
uint16_t *prev2 = parity ? prev : cur ;
uint16_t *next2 = parity ? cur : next;
refs /= 2;
for (x = 0; x < w; x++) {
int c = cur[-refs];
int d = (prev2[0] + next2[0])>>1;
int e = cur[+refs];
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 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;
#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]);\
if (score < spatial_score) {\
spatial_score= score;\
spatial_pred= (cur[-refs +j] + cur[+refs -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;
#if 0
int a = cur[-3*refs];
int g = cur[+3*refs];
int max = FFMAX3(d-e, d-c, FFMIN3(FFMAX(b-c,f-e),FFMAX(b-c,b-a),FFMAX(f-g,f-e)) );
int min = FFMIN3(d-e, d-c, FFMAX3(FFMIN(b-c,f-e),FFMIN(b-c,b-a),FFMIN(f-g,f-e)) );
#else
int max = FFMAX3(d-e, d-c, FFMIN(b-c, f-e));
int min = FFMIN3(d-e, d-c, FFMAX(b-c, f-e));
#endif
diff = FFMAX3(diff, min, -max);
}
if (spatial_pred > d + diff)
spatial_pred = d + diff;
else if (spatial_pred < d - diff)
spatial_pred = d - diff;
dst[0] = spatial_pred;
dst++;
cur++;
prev++;
next++;
prev2++;
next2++;
}
}
static void filter(AVFilterContext *ctx, AVFilterBufferRef *dstpic,
int parity, int tff)
{
@ -128,6 +191,7 @@ static void filter(AVFilterContext *ctx, AVFilterBufferRef *dstpic,
int w = dstpic->video->w;
int h = dstpic->video->h;
int refs = yadif->cur->linesize[i];
int df = (yadif->csp->comp[i].depth_minus1+1) / 8;
if (i) {
/* Why is this not part of the per-plane description thing? */
@ -145,7 +209,7 @@ static void filter(AVFilterContext *ctx, AVFilterBufferRef *dstpic,
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);
&yadif->cur->data[i][y*refs], w*df);
}
}
}
@ -191,6 +255,8 @@ static void return_frame(AVFilterContext *ctx, int is_second)
if (!yadif->csp)
yadif->csp = &av_pix_fmt_descriptors[link->format];
if (yadif->csp->comp[0].depth_minus1 == 15)
yadif->filter_line = filter_line_c_16bit;
filter(ctx, yadif->out, tff ^ !is_second, tff);
@ -311,8 +377,12 @@ static int query_formats(AVFilterContext *ctx)
PIX_FMT_YUVJ420P,
PIX_FMT_YUVJ422P,
PIX_FMT_YUVJ444P,
AV_NE( PIX_FMT_GRAY16BE, PIX_FMT_GRAY16LE ),
PIX_FMT_YUV440P,
PIX_FMT_YUVJ440P,
AV_NE( PIX_FMT_YUV420P16BE, PIX_FMT_YUV420P16LE ),
AV_NE( PIX_FMT_YUV422P16BE, PIX_FMT_YUV422P16LE ),
AV_NE( PIX_FMT_YUV444P16BE, PIX_FMT_YUV444P16LE ),
PIX_FMT_NONE
};