avfilter/af_adelay: do not crash if allocation of chandelay failed

bf5bdbdb · Paul B Mahol · 444cdb42 · bf5bdbdb
Commit bf5bdbdb authored Oct 18, 2018 by Paul B Mahol
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Showing with 4 additions and 3 deletions

af_adelay.c libavfilter/af_adelay.c +4 -3

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--- a/libavfilter/af_adelay.c
+++ b/libavfilter/af_adelay.c
@@ -249,10 +249,11 @@ static int request_frame(AVFilterLink *outlink)
 static av_cold void uninit(AVFilterContext *ctx)
 {
    AudioDelayContext *s = ctx->priv;
-    int i;
-    for (i = 0; i < s->nb_delays; i++)
+    if (s->chandelay) {
-        av_freep(&s->chandelay[i].samples);
+        for (int i = 0; i < s->nb_delays; i++)
+            av_freep(&s->chandelay[i].samples);
+    }
    av_freep(&s->chandelay);
 }