From 4f49fa6abe89e2fca2585cac4c63190315972cf0 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sat, 5 Jun 2021 20:28:24 +0200 Subject: [PATCH] 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 --- libavfilter/af_drmeter.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/libavfilter/af_drmeter.c b/libavfilter/af_drmeter.c index 3774259da3..58932fe6c5 100644 --- a/libavfilter/af_drmeter.c +++ b/libavfilter/af_drmeter.c @@ -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++) {