250 lines
8.0 KiB
Python
250 lines
8.0 KiB
Python
from __future__ import unicode_literals
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import datetime
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import logging
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import optparse
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import os
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import sys
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import gobject
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gobject.threads_init()
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# Extract any non-GStreamer arguments, and leave the GStreamer arguments for
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# processing by GStreamer. This needs to be done before GStreamer is imported,
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# so that GStreamer doesn't hijack e.g. ``--help``.
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# NOTE This naive fix does not support values like ``bar`` in
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# ``--gst-foo bar``. Use equals to pass values, like ``--gst-foo=bar``.
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def is_gst_arg(argument):
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return argument.startswith('--gst') or argument == '--help-gst'
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gstreamer_args = [arg for arg in sys.argv[1:] if is_gst_arg(arg)]
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mopidy_args = [arg for arg in sys.argv[1:] if not is_gst_arg(arg)]
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sys.argv[1:] = gstreamer_args
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# Add ../ to the path so we can run Mopidy from a Git checkout without
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# installing it on the system.
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sys.path.insert(
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0, os.path.abspath(os.path.join(os.path.dirname(__file__), '../')))
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import pygst
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pygst.require('0.10')
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import gst
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from mopidy.frontends.mpd import translator as mpd_translator
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from mopidy.models import Track, Artist, Album
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from mopidy.utils import log, path, versioning
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def main():
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options = parse_options()
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config = {} # TODO Read config from new config system
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log.setup_root_logger()
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log.setup_console_logging(options.verbosity_level)
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tracks = []
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def store(data):
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track = translator(data)
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tracks.append(track)
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logging.debug('Added %s', track.uri)
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def debug(uri, error, debug):
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logging.warning('Failed %s: %s', uri, error)
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logging.debug('Debug info for %s: %s', uri, debug)
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logging.info('Scanning %s', config['local']['media_dir'])
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scanner = Scanner(config['local']['media_dir'], store, debug)
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try:
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scanner.start()
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except KeyboardInterrupt:
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scanner.stop()
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logging.info('Done scanning; writing tag cache...')
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for row in mpd_translator.tracks_to_tag_cache_format(
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tracks, config['mpd']['media_dir']):
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if len(row) == 1:
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print ('%s' % row).encode('utf-8')
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else:
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print ('%s: %s' % row).encode('utf-8')
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logging.info('Done writing tag cache')
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def parse_options():
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parser = optparse.OptionParser(
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version='Mopidy %s' % versioning.get_version())
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# NOTE First argument to add_option must be bytestrings on Python < 2.6.2
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# See https://github.com/mopidy/mopidy/issues/302 for details
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parser.add_option(
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b'-q', '--quiet',
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action='store_const', const=0, dest='verbosity_level',
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help='less output (warning level)')
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parser.add_option(
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b'-v', '--verbose',
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action='count', default=1, dest='verbosity_level',
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help='more output (debug level)')
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return parser.parse_args(args=mopidy_args)[0]
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def translator(data):
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albumartist_kwargs = {}
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album_kwargs = {}
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artist_kwargs = {}
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track_kwargs = {}
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# NOTE kwargs dict keys must be bytestrings to work on Python < 2.6.5
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# See https://github.com/mopidy/mopidy/issues/302 for details.
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def _retrieve(source_key, target_key, target):
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if source_key in data:
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target[str(target_key)] = data[source_key]
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_retrieve(gst.TAG_ALBUM, 'name', album_kwargs)
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_retrieve(gst.TAG_TRACK_COUNT, 'num_tracks', album_kwargs)
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_retrieve(gst.TAG_ARTIST, 'name', artist_kwargs)
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if gst.TAG_DATE in data and data[gst.TAG_DATE]:
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date = data[gst.TAG_DATE]
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try:
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date = datetime.date(date.year, date.month, date.day)
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except ValueError:
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pass # Ignore invalid dates
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else:
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track_kwargs[b'date'] = date.isoformat()
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_retrieve(gst.TAG_TITLE, 'name', track_kwargs)
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_retrieve(gst.TAG_TRACK_NUMBER, 'track_no', track_kwargs)
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# Following keys don't seem to have TAG_* constant.
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_retrieve('album-artist', 'name', albumartist_kwargs)
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_retrieve('musicbrainz-trackid', 'musicbrainz_id', track_kwargs)
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_retrieve('musicbrainz-artistid', 'musicbrainz_id', artist_kwargs)
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_retrieve('musicbrainz-albumid', 'musicbrainz_id', album_kwargs)
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_retrieve(
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'musicbrainz-albumartistid', 'musicbrainz_id', albumartist_kwargs)
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if albumartist_kwargs:
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album_kwargs[b'artists'] = [Artist(**albumartist_kwargs)]
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track_kwargs[b'uri'] = data['uri']
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track_kwargs[b'length'] = data[gst.TAG_DURATION]
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track_kwargs[b'album'] = Album(**album_kwargs)
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track_kwargs[b'artists'] = [Artist(**artist_kwargs)]
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return Track(**track_kwargs)
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class Scanner(object):
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def __init__(self, base_dir, data_callback, error_callback=None):
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self.data = {}
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self.files = path.find_files(base_dir)
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self.data_callback = data_callback
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self.error_callback = error_callback
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self.loop = gobject.MainLoop()
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self.fakesink = gst.element_factory_make('fakesink')
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self.fakesink.set_property('signal-handoffs', True)
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self.fakesink.connect('handoff', self.process_handoff)
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self.uribin = gst.element_factory_make('uridecodebin')
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self.uribin.set_property('caps',
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gst.Caps(b'audio/x-raw-int; audio/x-raw-float'))
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self.uribin.connect('pad-added', self.process_new_pad)
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self.pipe = gst.element_factory_make('pipeline')
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self.pipe.add(self.uribin)
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self.pipe.add(self.fakesink)
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bus = self.pipe.get_bus()
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bus.add_signal_watch()
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bus.connect('message::application', self.process_application)
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bus.connect('message::tag', self.process_tags)
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bus.connect('message::error', self.process_error)
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def process_handoff(self, fakesink, buffer_, pad):
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# When this function is called the first buffer has reached the end of
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# the pipeline, and we can continue with the next track. Since we're
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# in another thread, we send a message back to the main thread using
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# the bus.
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structure = gst.Structure('handoff')
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message = gst.message_new_application(fakesink, structure)
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bus = self.pipe.get_bus()
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bus.post(message)
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def process_new_pad(self, source, pad):
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pad.link(self.fakesink.get_pad('sink'))
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def process_application(self, bus, message):
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if message.src != self.fakesink:
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return
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if message.structure.get_name() != 'handoff':
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return
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self.data['uri'] = unicode(self.uribin.get_property('uri'))
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self.data[gst.TAG_DURATION] = self.get_duration()
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try:
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self.data_callback(self.data)
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self.next_uri()
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except KeyboardInterrupt:
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self.stop()
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def process_tags(self, bus, message):
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taglist = message.parse_tag()
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for key in taglist.keys():
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# XXX: For some crazy reason some wma files spit out lists here,
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# not sure if this is due to better data in headers or wma being
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# stupid. So ugly hack for now :/
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if type(taglist[key]) is list:
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self.data[key] = taglist[key][0]
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else:
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self.data[key] = taglist[key]
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def process_error(self, bus, message):
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if self.error_callback:
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uri = self.uribin.get_property('uri')
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error, debug = message.parse_error()
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self.error_callback(uri, error, debug)
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self.next_uri()
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def get_duration(self):
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self.pipe.get_state() # Block until state change is done.
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try:
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return self.pipe.query_duration(
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gst.FORMAT_TIME, None)[0] // gst.MSECOND
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except gst.QueryError:
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return None
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def next_uri(self):
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self.data = {}
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try:
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uri = path.path_to_uri(self.files.next())
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except StopIteration:
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self.stop()
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return False
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self.pipe.set_state(gst.STATE_NULL)
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self.uribin.set_property('uri', uri)
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self.pipe.set_state(gst.STATE_PLAYING)
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return True
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def start(self):
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if self.next_uri():
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self.loop.run()
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def stop(self):
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self.pipe.set_state(gst.STATE_NULL)
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self.loop.quit()
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if __name__ == '__main__':
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main()
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