tag_rva2: name the CHANNEL_* enum

src/tag_rva2.c

@@ -24,16 +24,7 @@
 #include <glib.h>
 #include <id3tag.h>
 
-bool
-tag_rva2_parse(struct id3_tag *tag, struct replay_gain_info *replay_gain_info)
-{
-	struct id3_frame const * frame;
-
-	id3_latin1_t const *id;
-	id3_byte_t const *data;
-	id3_length_t length;
-
-	enum {
+enum rva2_channel {
 	CHANNEL_OTHER = 0x00,
 	CHANNEL_MASTER_VOLUME = 0x01,
 	CHANNEL_FRONT_RIGHT = 0x02,
@@ -43,7 +34,16 @@ tag_rva2_parse(struct id3_tag *tag, struct replay_gain_info *replay_gain_info)
 	CHANNEL_FRONT_CENTRE = 0x06,
 	CHANNEL_BACK_CENTRE = 0x07,
 	CHANNEL_SUBWOOFER = 0x08
-	};
+};
+
+bool
+tag_rva2_parse(struct id3_tag *tag, struct replay_gain_info *replay_gain_info)
+{
+	struct id3_frame const * frame;
+
+	id3_latin1_t const *id;
+	id3_byte_t const *data;
+	id3_length_t length;
 
 	/* relative volume adjustment information */