From 5759cce70db528c4feef48e480747e690a500b48 Mon Sep 17 00:00:00 2001
From: Anton Khirnov <anton@khirnov.net>
Date: Tue, 16 Aug 2011 11:32:57 +0200
Subject: [PATCH] avconv: don't segfault on 0 input files.

---
 avconv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/avconv.c b/avconv.c
index 7be68043e5..24f6cd6221 100644
--- a/avconv.c
+++ b/avconv.c
@@ -3656,7 +3656,7 @@ static void opt_output_file(const char *filename)
     }
 
     /* copy global metadata by default */
-    if (metadata_global_autocopy)
+    if (metadata_global_autocopy && nb_input_files)
         av_dict_copy(&oc->metadata, input_files[0].ctx->metadata,
                      AV_DICT_DONT_OVERWRITE);
     if (metadata_streams_autocopy)