[SCM] libav/experimental: Fix behavior when exporting output pad with default query_formats()

[siretart at users.alioth.debian.org]

The following commit has been merged in the experimental branch:
commit 7b712850d2addea6e2b584bb223ffe74c08577bd
Author: Vitor Sessak <vitor1001 at gmail.com>
Date:   Fri Apr 4 20:06:28 2008 +0000

    Fix behavior when exporting output pad with default query_formats()
    
    Commited in SoC by Bobby Bingham on 2007-08-08 04:25:08
    
    Originally committed as revision 12697 to svn://svn.ffmpeg.org/ffmpeg/trunk

diff --git a/libavfilter/avfiltergraph.c b/libavfilter/avfiltergraph.c
index c01e812..dae2c97 100644
--- a/libavfilter/avfiltergraph.c
+++ b/libavfilter/avfiltergraph.c
@@ -257,8 +257,10 @@ static int *graph_out_query_formats(AVFilterLink *link)
 {
     AVFilterLink *link2 = get_intern_output_link(link);
 
-    if(!link2 || !link2->src->output_pads[link2->srcpad].query_formats)
+    if(!link2)
         return avfilter_make_format_list(0);
+    if(!link2->src->output_pads[link2->srcpad].query_formats)
+        return avfilter_default_query_output_formats(link2);
     return link2->src->output_pads[link2->srcpad].query_formats(link2);
 }
 

-- 
Libav/FFmpeg packaging