avfilter/af_astats: Avoid Zero division in print part.

65ba90ea · Martin Vignali · Paul B Mahol · 9d7e42e6 · 65ba90ea
Commit 65ba90ea authored Mar 08, 2015 by Martin Vignali Committed by Paul B Mahol Mar 08, 2015
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af_astats.c libavfilter/af_astats.c +3 -0

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--- a/libavfilter/af_astats.c
+++ b/libavfilter/af_astats.c
@@ -222,6 +222,9 @@ static void print_stats(AVFilterContext *ctx)
        av_log(ctx, AV_LOG_INFO, "Peak count: %"PRId64"\n", p->min_count + p->max_count);
    }

+    if (!nb_samples || !s->nb_channels)
+        return;
+
    av_log(ctx, AV_LOG_INFO, "Overall\n");
    av_log(ctx, AV_LOG_INFO, "DC offset: %f\n", max_sigma_x / (nb_samples / s->nb_channels));
    av_log(ctx, AV_LOG_INFO, "Min level: %f\n", min);