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yadif: fix slice sizes

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This more evenly distributes the load between threads

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-05-24 17:33:59 +02:00
parent 221f902f1d
commit 1d08e4b584
1 changed files with 2 additions and 3 deletions
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libavfilter/vf_yadif.c
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@ -190,9 +190,8 @@ static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
int refs = s->cur->linesize[td->plane];
int df = (s->csp->comp[td->plane].depth_minus1 + 8) / 8;
int pix_3 = 3 * df;
int slice_h = td->h / nb_jobs;
int slice_start = jobnr * slice_h;
int slice_end = (jobnr == nb_jobs - 1) ? td->h : (jobnr + 1) * slice_h;
int slice_start = (td->h * jobnr ) / nb_jobs;
int slice_end = (td->h * (jobnr+1)) / nb_jobs;
int y;
/* filtering reads 3 pixels to the left/right; to avoid invalid reads,