From ebc8d974817fe456a0afe6867fdeb22c761fb04f Mon Sep 17 00:00:00 2001
From: Anton Khirnov <anton@khirnov.net>
Date: Sun, 8 Jul 2012 17:29:42 +0200
Subject: lavfi: add error handling to start_frame().

---
 libavfilter/avfilter.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'libavfilter/avfilter.h')

diff --git a/libavfilter/avfilter.h b/libavfilter/avfilter.h
index 7fbdd8a..a685761cf 100644
--- a/libavfilter/avfilter.h
+++ b/libavfilter/avfilter.h
@@ -258,8 +258,11 @@ struct AVFilterPad {
      * picture inside the link structure.
      *
      * Input video pads only.
+     *
+     * @return >= 0 on success, a negative AVERROR on error. picref will be
+     * unreferenced by the caller in case of error.
      */
-    void (*start_frame)(AVFilterLink *link, AVFilterBufferRef *picref);
+    int (*start_frame)(AVFilterLink *link, AVFilterBufferRef *picref);
 
     /**
      * Callback function to get a video buffer. If NULL, the filter system will
-- 
cgit v1.1


From e9b992d035b58209d66115bd7d964741dd31d592 Mon Sep 17 00:00:00 2001
From: Anton Khirnov <anton@khirnov.net>
Date: Sat, 14 Jul 2012 09:25:33 +0200
Subject: lavfi: add error handling to draw_slice().

---
 libavfilter/avfilter.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'libavfilter/avfilter.h')

diff --git a/libavfilter/avfilter.h b/libavfilter/avfilter.h
index a685761cf..3cd65da 100644
--- a/libavfilter/avfilter.h
+++ b/libavfilter/avfilter.h
@@ -295,8 +295,10 @@ struct AVFilterPad {
      * and should do its processing.
      *
      * Input video pads only.
+     *
+     * @return >= 0 on success, a negative AVERROR on error.
      */
-    void (*draw_slice)(AVFilterLink *link, int y, int height, int slice_dir);
+    int (*draw_slice)(AVFilterLink *link, int y, int height, int slice_dir);
 
     /**
      * Samples filtering callback. This is where a filter receives audio data
-- 
cgit v1.1


From d4f89906e3b310609b636cf6071313ec557ec873 Mon Sep 17 00:00:00 2001
From: Anton Khirnov <anton@khirnov.net>
Date: Sat, 14 Jul 2012 09:25:33 +0200
Subject: lavfi: add error handling to end_frame().

---
 libavfilter/avfilter.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'libavfilter/avfilter.h')

diff --git a/libavfilter/avfilter.h b/libavfilter/avfilter.h
index 3cd65da..7ca9eb4 100644
--- a/libavfilter/avfilter.h
+++ b/libavfilter/avfilter.h
@@ -287,8 +287,10 @@ struct AVFilterPad {
      * in the link structure during start_frame().
      *
      * Input video pads only.
+     *
+     * @return >= 0 on success, a negative AVERROR on error.
      */
-    void (*end_frame)(AVFilterLink *link);
+    int (*end_frame)(AVFilterLink *link);
 
     /**
      * Slice drawing callback. This is where a filter receives video data
-- 
cgit v1.1