Add support for Opus files (needs dev version of Mutagen)

http://tickets.musicbrainz.org/browse/PICARD-289

picard/formats/__init__.py

@@ -164,11 +164,15 @@ from picard.formats.vorbis import (
     OggSpeexFile,
     OggVorbisFile,
     OggAudioFile,
+    OggOpusFile,
+    with_opus,
     )
 register_format(FLACFile)
 register_format(OggFLACFile)
 register_format(OggSpeexFile)
 register_format(OggVorbisFile)
+if with_opus:
+    register_format(OggOpusFile)
 register_format(OggAudioFile)
 
 try:

picard/formats/vorbis.py

@@ -24,6 +24,12 @@ import mutagen.oggflac
 import mutagen.oggspeex
 import mutagen.oggtheora
 import mutagen.oggvorbis
+try:
+    from mutagen.oggopus import OggOpus
+    with_opus = True
+except ImportError:
+    OggOpus = None
+    with_opus = False
 from picard.file import File
 from picard.metadata import Metadata
 from picard.util import encode_filename, sanitize_date
@@ -203,6 +209,15 @@ class OggVorbisFile(VCommentFile):
         super(OggVorbisFile, self)._info(metadata, file)
         metadata['~format'] = self.NAME
 
+class OggOpusFile(VCommentFile):
+    """Ogg Opus file."""
+    EXTENSIONS = [".opus"]
+    NAME = "Ogg Opus"
+    _File = OggOpus
+    def _info(self, metadata, file):
+        super(OggOpusFile, self)._info(metadata, file)
+        metadata['~format'] = self.NAME
+
 def OggAudioFile(filename):
     """Generic Ogg audio file."""
     options = [OggFLACFile, OggSpeexFile, OggVorbisFile]