From 1a4d18820d551bedcfa03b7e8ca72df87d4b5cfa Mon Sep 17 00:00:00 2001 From: Paul B Mahol Date: Fri, 11 Oct 2019 12:55:13 +0200 Subject: [PATCH] avfilter/vf_w3fdif: deny processing small videos Fixes #8243 (cherry picked from commit 0e68e8c93f9068596484ec8ba725586860e06fc8) Signed-off-by: Michael Niedermayer --- libavfilter/vf_w3fdif.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/libavfilter/vf_w3fdif.c b/libavfilter/vf_w3fdif.c index bbd8db00d3..90b60a593f 100644 --- a/libavfilter/vf_w3fdif.c +++ b/libavfilter/vf_w3fdif.c @@ -94,6 +94,11 @@ static int config_input(AVFilterLink *inlink) s->planeheight[1] = s->planeheight[2] = FF_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 = ctx->graph->nb_threads; s->work_line = av_calloc(s->nb_threads, sizeof(*s->work_line));