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lavfi/lut: use FF_CEIL_RSHIFT for chroma w/h rounding.

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This commit is contained in:
Clément Bœsch 2013-05-11 00:56:04 +02:00
parent 91cae60ecb
commit 59d33eafd1
1 changed files with 3 additions and 2 deletions
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5
libavfilter/vf_lut.c
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@ -305,13 +305,14 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
for (plane = 0; plane < 4 && in->data[plane]; plane++) {
int vsub = plane == 1 || plane == 2 ? lut->vsub : 0;
int hsub = plane == 1 || plane == 2 ? lut->hsub : 0;
int h = FF_CEIL_RSHIFT(inlink->h, vsub);
int w = FF_CEIL_RSHIFT(inlink->w, hsub);
inrow = in ->data[plane];
outrow = out->data[plane];
for (i = 0; i < (in->height + (1<<vsub) - 1)>>vsub; i ++) {
for (i = 0; i < h; i++) {
const uint8_t *tab = lut->lut[plane];
int w = (inlink->w + (1<<hsub) - 1)>>hsub;
for (j = 0; j < w; j++)
outrow[j] = tab[inrow[j]];
inrow += in ->linesize[plane];