avfilter/af_astats: clip input value to prevent overflow

4 years ago · 89c9c42c5b
parent 6c24f2bf41
commit 89c9c42c5b
1 changed files with 1 additions and 1 deletions
--- a/libavfilter/af_astats.c
+++ b/libavfilter/af_astats.c
@ -329,7 +329,7 @@ static inline void update_stat(AudioStatsContext *s, ChannelStats *p, double d,

    drop = p->win_samples[p->win_pos];
    p->win_samples[p->win_pos] = nd;
-    index = av_clip(FFABS(nd) * HISTOGRAM_MAX, 0, HISTOGRAM_MAX);
+    index = av_clip(FFABS(av_clipd(nd, -1.0, 1.0)) * HISTOGRAM_MAX, 0, HISTOGRAM_MAX);
    p->max_index = FFMAX(p->max_index, index);
    p->histogram[index]++;
    if (!isnan(p->noise_floor))