241 lines
9.5 KiB
Python
241 lines
9.5 KiB
Python
"""
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Monitors the Kodi playqueue and adjusts the Plex playqueue accordingly
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"""
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from logging import getLogger
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from threading import Thread
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from re import compile as re_compile
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from xbmc import Player, PlayList, PLAYLIST_MUSIC, PLAYLIST_VIDEO, sleep
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from utils import thread_methods
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import playlist_func as PL
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from PlexFunctions import GetAllPlexChildren
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from PlexAPI import API
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from plexbmchelper.subscribers import LOCK
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from playback import play_xml
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import json_rpc as js
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import variables as v
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import state
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###############################################################################
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LOG = getLogger("PLEX." + __name__)
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PLUGIN = 'plugin://%s' % v.ADDON_ID
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REGEX = re_compile(r'''plex_id=(\d+)''')
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# Our PKC playqueues (3 instances of Playqueue_Object())
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PLAYQUEUES = []
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###############################################################################
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def init_playqueues():
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"""
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Call this once on startup to initialize the PKC playqueue objects in
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the list PLAYQUEUES
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"""
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if PLAYQUEUES:
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LOG.debug('Playqueues have already been initialized')
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return
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# Initialize Kodi playqueues
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with LOCK:
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for i in (0, 1, 2):
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# Just in case the Kodi response is not sorted correctly
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for queue in js.get_playlists():
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if queue['playlistid'] != i:
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continue
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playqueue = PL.Playqueue_Object()
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playqueue.playlistid = i
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playqueue.type = queue['type']
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# Initialize each Kodi playlist
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if playqueue.type == v.KODI_TYPE_AUDIO:
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playqueue.kodi_pl = PlayList(PLAYLIST_MUSIC)
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elif playqueue.type == v.KODI_TYPE_VIDEO:
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playqueue.kodi_pl = PlayList(PLAYLIST_VIDEO)
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else:
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# Currently, only video or audio playqueues available
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playqueue.kodi_pl = PlayList(PLAYLIST_VIDEO)
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# Overwrite 'picture' with 'photo'
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playqueue.type = v.KODI_TYPE_PHOTO
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PLAYQUEUES.append(playqueue)
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LOG.debug('Initialized the Kodi playqueues: %s', PLAYQUEUES)
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def get_playqueue_from_type(kodi_playlist_type):
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"""
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Returns the playqueue according to the kodi_playlist_type ('video',
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'audio', 'picture') passed in
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"""
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with LOCK:
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for playqueue in PLAYQUEUES:
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if playqueue.type == kodi_playlist_type:
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break
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else:
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raise ValueError('Wrong playlist type passed in: %s',
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kodi_playlist_type)
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return playqueue
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def init_playqueue_from_plex_children(plex_id, transient_token=None):
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"""
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Init a new playqueue e.g. from an album. Alexa does this
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Returns the Playlist_Object
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"""
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xml = GetAllPlexChildren(plex_id)
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try:
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xml[0].attrib
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except (TypeError, IndexError, AttributeError):
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LOG.error('Could not download the PMS xml for %s', plex_id)
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return
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playqueue = get_playqueue_from_type(
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v.KODI_PLAYLIST_TYPE_FROM_PLEX_TYPE[xml[0].attrib['type']])
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playqueue.clear()
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for i, child in enumerate(xml):
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api = API(child)
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PL.add_item_to_playlist(playqueue, i, plex_id=api.plex_id())
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playqueue.plex_transient_token = transient_token
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LOG.debug('Firing up Kodi player')
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Player().play(playqueue.kodi_pl, None, False, 0)
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return playqueue
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def update_playqueue_from_PMS(playqueue,
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playqueue_id=None,
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repeat=None,
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offset=None,
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transient_token=None):
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"""
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Completely updates the Kodi playqueue with the new Plex playqueue. Pass
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in playqueue_id if we need to fetch a new playqueue
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repeat = 0, 1, 2
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offset = time offset in Plextime (milliseconds)
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"""
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LOG.info('New playqueue %s received from Plex companion with offset '
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'%s, repeat %s', playqueue_id, offset, repeat)
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# Safe transient token from being deleted
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if transient_token is None:
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transient_token = playqueue.plex_transient_token
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with LOCK:
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xml = PL.get_PMS_playlist(playqueue, playqueue_id)
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playqueue.clear()
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try:
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PL.get_playlist_details_from_xml(playqueue, xml)
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except PL.PlaylistError:
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LOG.error('Could not get playqueue ID %s', playqueue_id)
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return
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playqueue.repeat = 0 if not repeat else int(repeat)
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playqueue.plex_transient_token = transient_token
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play_xml(playqueue, xml, offset)
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@thread_methods(add_suspends=['PMS_STATUS'])
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class PlayqueueMonitor(Thread):
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"""
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Unfortunately, Kodi does not tell if items within a Kodi playqueue
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(playlist) are swapped. This is what this monitor is for. Don't replace
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this mechanism till Kodi's implementation of playlists has improved
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"""
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def _compare_playqueues(self, playqueue, new):
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"""
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Used to poll the Kodi playqueue and update the Plex playqueue if needed
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"""
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old = list(playqueue.items)
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index = list(range(0, len(old)))
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LOG.debug('Comparing new Kodi playqueue %s with our play queue %s',
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new, old)
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for i, new_item in enumerate(new):
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if (new_item['file'].startswith('plugin://') and
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not new_item['file'].startswith(PLUGIN)):
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# Ignore new media added by other addons
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continue
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for j, old_item in enumerate(old):
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if self.stopped():
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# Chances are that we got an empty Kodi playlist due to
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# Kodi exit
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return
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try:
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if (old_item.file.startswith('plugin://') and
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not old_item.file.startswith(PLUGIN)):
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# Ignore media by other addons
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continue
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except AttributeError:
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# were not passed a filename; ignore
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pass
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if 'id' in new_item:
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identical = (old_item.kodi_id == new_item['id'] and
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old_item.kodi_type == new_item['type'])
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else:
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try:
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plex_id = REGEX.findall(new_item['file'])[0]
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except IndexError:
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LOG.debug('Comparing paths directly as a fallback')
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identical = old_item.file == new_item['file']
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else:
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identical = plex_id == old_item.plex_id
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if j == 0 and identical:
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del old[j], index[j]
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break
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elif identical:
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LOG.debug('Detected playqueue item %s moved to position %s',
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i + j, i)
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PL.move_playlist_item(playqueue, i + j, i)
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del old[j], index[j]
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break
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else:
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LOG.debug('Detected new Kodi element at position %s: %s ',
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i, new_item)
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try:
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if playqueue.id is None:
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PL.init_plex_playqueue(playqueue, kodi_item=new_item)
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else:
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PL.add_item_to_plex_playqueue(playqueue,
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i,
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kodi_item=new_item)
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except PL.PlaylistError:
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# Could not add the element
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pass
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except IndexError:
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# This is really a hack - happens when using Addon Paths
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# and repeatedly starting the same element. Kodi will then
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# not pass kodi id nor file path AND will also not
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# start-up playback. Hence kodimonitor kicks off playback.
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# Also see kodimonitor.py - _playlist_onadd()
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pass
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else:
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for j in range(i, len(index)):
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index[j] += 1
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for i in reversed(index):
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if self.stopped():
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# Chances are that we got an empty Kodi playlist due to
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# Kodi exit
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return
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LOG.debug('Detected deletion of playqueue element at pos %s', i)
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PL.delete_playlist_item_from_PMS(playqueue, i)
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LOG.debug('Done comparing playqueues')
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def run(self):
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stopped = self.stopped
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suspended = self.suspended
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LOG.info("----===## Starting PlayqueueMonitor ##===----")
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while not stopped():
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while suspended():
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if stopped():
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break
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sleep(1000)
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with LOCK:
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for playqueue in PLAYQUEUES:
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kodi_pl = js.playlist_get_items(playqueue.playlistid)
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if playqueue.old_kodi_pl != kodi_pl:
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if playqueue.id is None and (not state.DIRECT_PATHS or
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state.CONTEXT_MENU_PLAY):
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# Only initialize if directly fired up using direct
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# paths. Otherwise let default.py do its magic
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LOG.debug('Not yet initiating playback')
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else:
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# compare old and new playqueue
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self._compare_playqueues(playqueue, kodi_pl)
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playqueue.old_kodi_pl = list(kodi_pl)
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sleep(200)
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LOG.info("----===## PlayqueueMonitor stopped ##===----")
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