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avfilter/vf_w3fdif: deny processing small videos

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Fixes #8243

(cherry picked from commit 0e68e8c93f9068596484ec8ba725586860e06fc8)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Paul B Mahol 2019-10-11 12:55:13 +02:00 committed by Michael Niedermayer
parent cde751ce49
commit da58e7fb9e
1 changed files with 5 additions and 0 deletions
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5
libavfilter/vf_w3fdif.c
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@ -274,6 +274,11 @@ static int config_input(AVFilterLink *inlink)
s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
s->planeheight[0] = s->planeheight[3] = inlink->h;
if (inlink->h < 3) {
av_log(ctx, AV_LOG_ERROR, "Video of less than 3 lines is not supported\n");
return AVERROR(EINVAL);
}
s->nb_planes = av_pix_fmt_count_planes(inlink->format);
s->nb_threads = ff_filter_get_nb_threads(ctx);
s->work_line = av_calloc(s->nb_threads, sizeof(*s->work_line));