af_amix: prevent memory leak on error path

Fixes CID732272.

af_amix: prevent memory leak on error path
Fixes CID732272.
8501c098 · Janne Grunau · 6f8ef532 · 8501c098
Commit 8501c098 authored Oct 09, 2012 by Janne Grunau
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libavfilter/af_amix.c libavfilter/af_amix.c +3 -1

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--- a/libavfilter/af_amix.c
+++ b/libavfilter/af_amix.c
@@ -285,8 +285,10 @@ static int output_frame(AVFilterLink *outlink, int nb_samples)
        return AVERROR(ENOMEM);

    in_buf = ff_get_audio_buffer(outlink, AV_PERM_WRITE, nb_samples);
-    if (!in_buf)
+    if (!in_buf) {
+        avfilter_unref_buffer(out_buf);
        return AVERROR(ENOMEM);
+    }

    for (i = 0; i < s->nb_inputs; i++) {
        if (s->input_state[i] == INPUT_ON) {