formats: make tag method optional

3 files changed, 7 insertions, 4 deletions

diff --git a/cutter b/cutter
index 8112c27..d3d8890 100755
--- a/cutter
+++ b/cutter
@@ -351,6 +351,7 @@ class CueSplitter:
 		self.tracktotal = len(list(self.all_tracks()))
 
 		self.enctype = formats.handler(opt.type, logger=printf)
+		self.tag_supported = self.enctype.is_tag_supported()
 
 		self.tags = {
 			"album": self.opt.album or self.cue.get("title"),
@@ -448,6 +449,9 @@ class CueSplitter:
 		return self.track_info[track].tags
 
 	def tag(self, track, path):
+		if not self.tag_supported:
+			return
+
 		printf("Tag [%s] : ", path)
 		if not self.enctype.tag(path, self.track_tags(track)):
 			printf("FAILED\n")
diff --git a/formats/__base__.py b/formats/__base__.py
index 4bb6598..f17748a 100644
--- a/formats/__base__.py
+++ b/formats/__base__.py
@@ -23,3 +23,6 @@ class BaseHandler:
 			self.add("-b %d" % opt.bits_per_sample)
 		if opt.channels and opt.channels != info.channels:
 			self.add("-c %d" % opt.channels)
+
+	def is_tag_supported(self):
+		return hasattr(self, "tag")
diff --git a/formats/wav.py b/formats/wav.py
index 76c2ed3..66169fc 100644
--- a/formats/wav.py
+++ b/formats/wav.py
@@ -11,9 +11,5 @@ class WavHandler(BaseHandler):
 
 		return self.build()
 
-	def tag(self, *args):
-		self.log("SKIP ")
-		return True
-
 def init():
 	return WavHandler