diff --git a/libavformat/allformats.c b/libavformat/allformats.c
index 8e8c9f059f..47bcb4f9c6 100644
--- a/libavformat/allformats.c
+++ b/libavformat/allformats.c
@@ -21,8 +21,6 @@
 /* If you do not call this function, then you can select exactly which
    formats you want to support */
 
-char *video_device = "none";
-
 /**
  * Initialize libavcodec and register all the codecs and formats.
  */
diff --git a/libavformat/avformat.h b/libavformat/avformat.h
index 4646af763d..e67001c81b 100644
--- a/libavformat/avformat.h
+++ b/libavformat/avformat.h
@@ -379,7 +379,11 @@ int filename_number_test(const char *filename);
 int video_grab_init(void);
 int audio_init(void);
 
-extern const char *v4l_device;
+/* DV1394 */
+int dv1394_init(void);
+extern int dv1394_channel;
+
+extern const char *video_device;
 extern const char *audio_device;
 
 #ifdef HAVE_AV_CONFIG_H
diff --git a/libavformat/utils.c b/libavformat/utils.c
index f811b2c628..4ebca7daec 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -41,6 +41,8 @@ AVInputFormat *first_iformat;
 AVOutputFormat *first_oformat;
 AVImageFormat *first_image_format;
 
+const char *video_device = "none";
+
 void av_register_input_format(AVInputFormat *format)
 {
     AVInputFormat **p;