Add support for tagging TAK files

picard/file.py

@@ -373,7 +373,8 @@ class File(LockableObject, Item):
         return False
 
     def _info(self, metadata, file):
-        metadata.length = int(file.info.length * 1000)
+        if hasattr(file.info, 'length'):
+            metadata.length = int(file.info.length * 1000)
         if hasattr(file.info, 'bitrate') and file.info.bitrate:
             metadata['~#bitrate'] = file.info.bitrate / 1000.0
         if hasattr(file.info, 'sample_rate') and file.info.sample_rate:

picard/formats/__init__.py

@@ -150,11 +150,13 @@ from picard.formats.apev2 import (
     MusepackFile,
     OptimFROGFile,
     WavPackFile,
+    TAKFile,
     )
 register_format(MusepackFile)
 register_format(WavPackFile)
 register_format(OptimFROGFile)
 register_format(MonkeysAudioFile)
+register_format(TAKFile)
 
 from picard.formats.vorbis import (
     FLACFile,

picard/formats/apev2.py

@@ -22,6 +22,7 @@ import mutagen.monkeysaudio
 import mutagen.musepack
 import mutagen.wavpack
 import mutagen.optimfrog
+import mutagenext.tak
 from picard.file import File
 from picard.metadata import Metadata
 from picard.util import encode_filename, sanitize_date
@@ -161,3 +162,12 @@ class MonkeysAudioFile(APEv2File):
     def _info(self, metadata, file):
         super(MonkeysAudioFile, self)._info(metadata, file)
         metadata['~format'] = self.NAME
+
+class TAKFile(APEv2File):
+    """TAK file."""
+    EXTENSIONS = [".tak"]
+    NAME = "Tom's lossless Audio Kompressor"
+    _File = mutagenext.tak.TAK
+    def _info(self, metadata, file):
+        super(TAKFile, self)._info(metadata, file)
+        metadata['~format'] = self.NAME

picard/formats/mutagenext/tak.py

@@ -0,0 +1,48 @@
+# Tom's lossless Audio Kompressor (TAK) reader/tagger
+#
+# Copyright 2008 Lukas Lalinsky <lalinsky@gmail.com>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# $$
+
+"""Tom's lossless Audio Kompressor streams with APEv2 tags.
+
+TAK is a lossless audio compressor developed by Thomas Becker.
+
+For more information, see http://wiki.hydrogenaudio.org/index.php?title=TAK
+and http://en.wikipedia.org/wiki/TAK_(audio_codec)
+"""
+
+__all__ = ["TAK", "Open", "delete"]
+
+from mutagen.apev2 import APEv2File, error, delete
+
+class TAKHeaderError(error): pass
+
+class TAKInfo(object):
+    """TAK stream information.
+
+    Attributes:
+      (none at the moment)
+    """
+
+    def __init__(self, fileobj):
+        header = fileobj.read(4)
+        if len(header) != 4 or not header.startswith("tBaK"):
+            raise TAKHeaderError("not a TAK file")
+
+    def pprint(self):
+        return "Tom's lossless Audio Kompressor"
+
+class TAK(APEv2File):
+    _Info = TAKInfo
+    _mimes = ["audio/x-tak"]
+
+    def score(filename, fileobj, header):
+        return header.startswith("tBaK") + filename.lower().endswith(".tak")
+    score = staticmethod(score)
+
+Open = TAK