decimate: check for avctx ptr before closing.

Fixes a crash init failed before setting avctx.
12 years ago · 29667a2c20
parent 8cd7aab1bb
commit 29667a2c20
1 changed files with 4 additions and 2 deletions
--- a/libavfilter/vf_decimate.c
+++ b/libavfilter/vf_decimate.c
@ -148,8 +148,10 @@ static av_cold void uninit(AVFilterContext *ctx)
 {
    DecimateContext *decimate = ctx->priv;
    av_frame_free(&decimate->ref);
-    avcodec_close(decimate->avctx);
-    av_freep(&decimate->avctx);
+    if (decimate->avctx) {
+        avcodec_close(decimate->avctx);
+        av_freep(&decimate->avctx);
+    }
 }

 static int query_formats(AVFilterContext *ctx)