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avfilter/vf_waveform: only use available components 

Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2016-03-05 20:22:35 +01:00
parent e0f5f9267a
commit f3c00be2a3
1 changed files with 1 additions and 1 deletions
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2
libavfilter/vf_waveform.c
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@ -1158,7 +1158,7 @@ static int config_output(AVFilterLink *outlink)
if (!s->peak)
return AVERROR(ENOMEM);
for (p = 0; p < 4; p++) {
for (p = 0; p < s->ncomp; p++) {
const int is_chroma = (p == 1 || p == 2);
const int shift_w = (is_chroma ? s->desc->log2_chroma_w : 0);
const int shift_h = (is_chroma ? s->desc->log2_chroma_h : 0);