avfilter/af_drmeter: Check that there is data

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>
This commit is contained in:
Michael Niedermayer 2021-06-05 20:28:24 +02:00
parent 1f21349d20
commit 4f49fa6abe

View File

@ -167,6 +167,11 @@ static void print_stats(AVFilterContext *ctx)
float chdr, secondpeak, rmssum = 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);
for (i = 0; i <= 10000; i++) {