From 74853ed3f845212f4092e7b7e89dc2262926f4f5 Mon Sep 17 00:00:00 2001
From: Anton Khirnov <anton@khirnov.net>
Date: Mon, 25 Jun 2012 13:16:57 +0200
Subject: [PATCH] avconv: shut up an uninitialized variable warning.
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The warning silenced was:
avconv.c: In function ‘configure_filtergraph’:
avconv.c:603:8: warning: ‘ist’ may be used uninitialized in this function [-Wuninitialized]
avconv.c:549:18: note: ‘ist’ was declared here
---
 avconv.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/avconv.c b/avconv.c
index ff06bceafd..7aacbe0da7 100644
--- a/avconv.c
+++ b/avconv.c
@@ -546,7 +546,7 @@ static FilterGraph *init_simple_filtergraph(InputStream *ist, OutputStream *ost)
 
 static void init_input_filter(FilterGraph *fg, AVFilterInOut *in)
 {
-    InputStream *ist;
+    InputStream *ist = NULL;
     enum AVMediaType type = avfilter_pad_get_type(in->filter_ctx->input_pads, in->pad_idx);
     int i;
 
@@ -598,6 +598,8 @@ static void init_input_filter(FilterGraph *fg, AVFilterInOut *in)
             exit_program(1);
         }
     }
+    av_assert0(ist);
+
     ist->discard         = 0;
     ist->decoding_needed = 1;
     ist->st->discard = AVDISCARD_NONE;