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

Michael Niedermayer committed 5 years ago

Commit 4f49fa61 parent 1f213491 file · +5 −0Browse files

Unified · Split

@@ -167,6 +167,11 @@ static void print_stats(AVFilterContext *ctx) · 166 unmodified lines
167	167	float chdr, secondpeak, rmssum = 0;
168	168	int i, j, first = 0;
169	169
	170	+ if (!p->nb_samples) {
	171	+ av_log(ctx, AV_LOG_INFO, "No data, dynamic range not meassurable\n");
	172	+ return;
	173	+ }
	174	+
170	175	finish_block(p);
171	176
172	177	for (i = 0; i <= 10000; i++) {

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