avfilter/f_metadata: do not memleak expr

a6e2cf5e · Paul B Mahol · 9c9d5bf2 · a6e2cf5e
Commit a6e2cf5e authored Sep 30, 2019 by Paul B Mahol
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f_metadata.c libavfilter/f_metadata.c +2 -0

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--- a/libavfilter/f_metadata.c
+++ b/libavfilter/f_metadata.c
@@ -283,6 +283,8 @@ static av_cold void uninit(AVFilterContext *ctx)
 {
    MetadataContext *s = ctx->priv;
+    av_expr_free(s->expr);
+    s->expr = NULL;
    if (s->avio_context) {
        avio_closep(&s->avio_context);
    }