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authorPaul B Mahol <onemda@gmail.com>2018-10-24 18:30:38 +0200
committerPaul B Mahol <onemda@gmail.com>2018-10-24 18:33:52 +0200
commit22d6d916494498cb6a7a1f8abb5d73f0030b4f78 (patch)
treed3e069f49e6d6546d1a57502ab45e30656817576 /libavfilter/vf_waveform.c
parentd94d2527317dc0e22bc3e1d135a0362ba796bf95 (diff)
avfilter/vf_waveform: abort early if there are no components to show
Diffstat (limited to 'libavfilter/vf_waveform.c')
-rw-r--r--libavfilter/vf_waveform.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/libavfilter/vf_waveform.c b/libavfilter/vf_waveform.c
index b4661e021f..8033628407 100644
--- a/libavfilter/vf_waveform.c
+++ b/libavfilter/vf_waveform.c
@@ -3025,6 +3025,9 @@ static int config_output(AVFilterLink *outlink)
comp++;
}
s->acomp = comp;
+ if (s->acomp == 0)
+ return AVERROR(EINVAL);
+
s->odesc = av_pix_fmt_desc_get(outlink->format);
s->dcomp = s->odesc->nb_components;