From cd99146253cf9de5dad5694b97027d5612fdc61d Mon Sep 17 00:00:00 2001
From: Anton Khirnov <anton@khirnov.net>
Date: Mon, 2 Jul 2012 20:13:40 +0200
Subject: lavfi: add error handling to filter_samples().

---
 libavfilter/internal.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'libavfilter/internal.h')

diff --git a/libavfilter/internal.h b/libavfilter/internal.h
index 954610e3ca..26059c927b 100644
--- a/libavfilter/internal.h
+++ b/libavfilter/internal.h
@@ -111,8 +111,12 @@ struct AVFilterPad {
      * and should do its processing.
      *
      * Input audio pads only.
+     *
+     * @return >= 0 on success, a negative AVERROR on error. This function
+     * must ensure that samplesref is properly unreferenced on error if it
+     * hasn't been passed on to another filter.
      */
-    void (*filter_samples)(AVFilterLink *link, AVFilterBufferRef *samplesref);
+    int (*filter_samples)(AVFilterLink *link, AVFilterBufferRef *samplesref);
 
     /**
      * Frame poll callback. This returns the number of immediately available
-- 
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