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avfilter/af_drmeter: Check that there is data

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Fixes: floating point division by 0
Fixes: -nan is outside the range of representable values of type 'int'
Fixes: Ticket8307

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 4f49fa6abe)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2021-06-05 20:28:24 +02:00
parent 853147f753
commit 3d3a60533b
1 changed files with 5 additions and 0 deletions
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libavfilter/af_drmeter.c
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@ -167,6 +167,11 @@ static void print_stats(AVFilterContext *ctx)
float chdr, secondpeak, rmssum = 0; float chdr, secondpeak, rmssum = 0;
int i, j, first = 0; int i, j, first = 0;
if (!p->nb_samples) {
av_log(ctx, AV_LOG_INFO, "No data, dynamic range not meassurable\n");
return;
}
finish_block(p); finish_block(p);
for (i = 0; i <= 10000; i++) { for (i = 0; i <= 10000; i++) {