Library scan freezes when mutagen raises an error

[mamaar]

The library scanning freezes when mutagen raises an error.

Traceback (most recent call last):
  File "/home/mamaar/projects/decibel-audio-player/src/modules/Library.py", line 182, in refreshLibrary
    files[filename] = [mTime, media.readInfo((tags[media.NFO_FIL],))[0]]
  File "/home/mamaar/projects/decibel-audio-player/src/media/__init__.py", line 63, in readInfo
    info.append(module.readInfo(file))
  File "/home/mamaar/projects/decibel-audio-player/src/media/mp3.py", line 42, in readInfo
    info[media.NFO_LEN] = int(MP3(file).info.length)
  File "/usr/lib/python2.5/site-packages/mutagen/__init__.py", line 75, in __init__
    self.load(filename, *args, **kwargs)
  File "/usr/lib/python2.5/site-packages/mutagen/id3.py", line 1921, in load
    self.info = self._Info(fileobj, offset)
  File "/usr/lib/python2.5/site-packages/mutagen/mp3.py", line 101, in __init__
    self.__try(fileobj, offset, size - offset, False)
  File "/usr/lib/python2.5/site-packages/mutagen/mp3.py", line 138, in __try
    raise HeaderNotFoundError("can't sync to an MPEG frame")
mutagen.mp3.HeaderNotFoundError: can't sync to an MPEG frame

[mamaar (mamaar)]

Here is a patch for the problem. Don't know if it's the best way to do it, but it removes the crash and I get my library loaded.

[Anonym25712 (anonym25712)]

Are you sure that file is actually a MP3 file, regardless of its extension? If so, it must be seriously broken.
Anyway, I'll add more checking there.