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avfilter/vf_noise: dont corrupt the picture outside width x height 

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-09-12 16:33:21 +02:00
parent 3eba83daed
commit 51dab60c7b
1 changed files with 5 additions and 1 deletions
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6
libavfilter/vf_noise.c
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@ -57,6 +57,7 @@ typedef struct {
const AVClass *class;
int nb_planes;
int linesize[4];
int bytewidth[4];
int height[4];
FilterParams all;
FilterParams param[4];
@ -196,6 +197,9 @@ static int config_input(AVFilterLink *inlink)
n->height[1] = n->height[2] = FF_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
n->height[0] = n->height[3] = inlink->h;
n->bytewidth [1] = n->bytewidth [2] = FF_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w) * ((desc->comp[0].depth_minus1 + 1) / 8);
n->bytewidth [0] = n->bytewidth [3] = inlink->w * ((desc->comp[0].depth_minus1 + 1) / 8);
return 0;
}
@ -377,7 +381,7 @@ static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
noise(td->out->data[plane] + start * td->out->linesize[plane],
td->in->data[plane] + start * td->in->linesize[plane],
td->out->linesize[plane], td->in->linesize[plane],
s->linesize[plane], start, end, s, plane);
s->bytewidth[plane], start, end, s, plane);
}
return 0;
}