forked from openlp/openlp
265 lines
10 KiB
Python
265 lines
10 KiB
Python
# -*- coding: utf-8 -*-
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# vim: autoindent shiftwidth=4 expandtab textwidth=120 tabstop=4 softtabstop=4
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###############################################################################
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# OpenLP - Open Source Lyrics Projection #
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# --------------------------------------------------------------------------- #
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# Copyright (c) 2008-2014 Raoul Snyman #
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# Portions copyright (c) 2008-2014 Tim Bentley, Gerald Britton, Jonathan #
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# Corwin, Samuel Findlay, Michael Gorven, Scott Guerrieri, Matthias Hub, #
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# Meinert Jordan, Armin Köhler, Erik Lundin, Edwin Lunando, Brian T. Meyer. #
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# Joshua Miller, Stevan Pettit, Andreas Preikschat, Mattias Põldaru, #
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# Christian Richter, Philip Ridout, Simon Scudder, Jeffrey Smith, #
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# Maikel Stuivenberg, Martin Thompson, Jon Tibble, Dave Warnock, #
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# Frode Woldsund, Martin Zibricky, Patrick Zimmermann #
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# --------------------------------------------------------------------------- #
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# This program is free software; you can redistribute it and/or modify it #
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# under the terms of the GNU General Public License as published by the Free #
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# Software Foundation; version 2 of the License. #
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# #
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# This program is distributed in the hope that it will be useful, but WITHOUT #
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or #
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# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for #
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# more details. #
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# #
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# You should have received a copy of the GNU General Public License along #
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# with this program; if not, write to the Free Software Foundation, Inc., 59 #
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# Temple Place, Suite 330, Boston, MA 02111-1307 USA #
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###############################################################################
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"""
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The :mod:`~openlp.core.ui.media.phononplayer` contains the Phonon player component.
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"""
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import logging
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import mimetypes
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from datetime import datetime
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from PyQt4.phonon import Phonon
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from openlp.core.lib import translate
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from openlp.core.ui.media import MediaState
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from openlp.core.ui.media.mediaplayer import MediaPlayer
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log = logging.getLogger(__name__)
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ADDITIONAL_EXT = {
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'audio/ac3': ['.ac3'],
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'audio/flac': ['.flac'],
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'audio/x-m4a': ['.m4a'],
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'audio/midi': ['.mid', '.midi'],
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'audio/x-mp3': ['.mp3'],
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'audio/mpeg': ['.mp3', '.mp2', '.mpga', '.mpega', '.m4a'],
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'audio/qcelp': ['.qcp'],
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'audio/x-wma': ['.wma'],
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'audio/x-ms-wma': ['.wma'],
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'video/x-flv': ['.flv'],
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'video/x-matroska': ['.mpv', '.mkv'],
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'video/x-wmv': ['.wmv'],
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'video/x-mpg': ['.mpg'],
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'video/mpeg': ['.mp4', '.mts', '.mov'],
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'video/x-ms-wmv': ['.wmv']
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}
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class PhononPlayer(MediaPlayer):
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"""
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A specialised version of the MediaPlayer class, which provides a Phonon display.
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"""
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def __init__(self, parent):
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"""
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Constructor
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"""
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super(PhononPlayer, self).__init__(parent, 'phonon')
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self.original_name = 'Phonon'
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self.display_name = '&Phonon'
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self.parent = parent
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self.additional_extensions = ADDITIONAL_EXT
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mimetypes.init()
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for mime_type in Phonon.BackendCapabilities.availableMimeTypes():
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mime_type = str(mime_type)
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if mime_type.startswith('audio/'):
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self._add_to_list(self.audio_extensions_list, mime_type)
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elif mime_type.startswith('video/'):
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self._add_to_list(self.video_extensions_list, mime_type)
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def _add_to_list(self, mime_type_list, mimetype):
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"""
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Add mimetypes to the provided list
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"""
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# Add all extensions which mimetypes provides us for supported types.
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extensions = mimetypes.guess_all_extensions(str(mimetype))
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for extension in extensions:
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ext = '*%s' % extension
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if ext not in mime_type_list:
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mime_type_list.append(ext)
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log.info('MediaPlugin: %s extensions: %s' % (mimetype, ' '.join(extensions)))
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# Add extensions for this mimetype from self.additional_extensions.
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# This hack clears mimetypes' and operating system's shortcomings
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# by providing possibly missing extensions.
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if mimetype in list(self.additional_extensions.keys()):
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for extension in self.additional_extensions[mimetype]:
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ext = '*%s' % extension
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if ext not in mime_type_list:
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mime_type_list.append(ext)
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log.info('MediaPlugin: %s additional extensions: %s' %
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(mimetype, ' '.join(self.additional_extensions[mimetype])))
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def setup(self, display):
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"""
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Set up the player widgets
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"""
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display.phonon_widget = Phonon.VideoWidget(display)
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display.phonon_widget.resize(display.size())
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display.media_object = Phonon.MediaObject(display)
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Phonon.createPath(display.media_object, display.phonon_widget)
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if display.has_audio:
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display.audio = Phonon.AudioOutput(Phonon.VideoCategory, display.media_object)
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Phonon.createPath(display.media_object, display.audio)
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display.phonon_widget.raise_()
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display.phonon_widget.hide()
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self.has_own_widget = True
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def check_available(self):
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"""
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Check if the player is available
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"""
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return True
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def load(self, display):
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"""
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Load a video into the display
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"""
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log.debug('load vid in Phonon Controller')
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controller = display.controller
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volume = controller.media_info.volume
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path = controller.media_info.file_info.absoluteFilePath()
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display.media_object.setCurrentSource(Phonon.MediaSource(path))
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if not self.media_state_wait(display, Phonon.StoppedState):
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return False
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self.volume(display, volume)
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return True
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def media_state_wait(self, display, media_state):
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"""
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Wait for the video to change its state
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Wait no longer than 5 seconds.
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"""
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start = datetime.now()
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current_state = display.media_object.state()
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while current_state != media_state:
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current_state = display.media_object.state()
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if current_state == Phonon.ErrorState:
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return False
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self.application.process_events()
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if (datetime.now() - start).seconds > 5:
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return False
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return True
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def resize(self, display):
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"""
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Resize the display
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"""
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display.phonon_widget.resize(display.size())
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def play(self, display):
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"""
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Play the current media item
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"""
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controller = display.controller
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start_time = 0
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if display.media_object.state() != Phonon.PausedState and controller.media_info.start_time > 0:
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start_time = controller.media_info.start_time
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display.media_object.play()
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if not self.media_state_wait(display, Phonon.PlayingState):
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return False
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if start_time > 0:
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self.seek(display, controller.media_info.start_time * 1000)
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self.volume(display, controller.media_info.volume)
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controller.media_info.length = int(display.media_object.totalTime() / 1000)
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controller.seek_slider.setMaximum(controller.media_info.length * 1000)
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self.state = MediaState.Playing
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display.phonon_widget.raise_()
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return True
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def pause(self, display):
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"""
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Pause the current media item
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"""
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display.media_object.pause()
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if self.media_state_wait(display, Phonon.PausedState):
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self.state = MediaState.Paused
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def stop(self, display):
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"""
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Stop the current media item
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"""
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display.media_object.stop()
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self.set_visible(display, False)
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self.state = MediaState.Stopped
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def volume(self, display, vol):
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"""
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Set the volume
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"""
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# 1.0 is the highest value
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if display.has_audio:
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vol = float(vol) / float(100)
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display.audio.setVolume(vol)
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def seek(self, display, seek_value):
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"""
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Go to a particular point in the current media item
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"""
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display.media_object.seek(seek_value)
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def reset(self, display):
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"""
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Reset the media player
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"""
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display.media_object.stop()
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display.media_object.clearQueue()
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self.set_visible(display, False)
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display.phonon_widget.setVisible(False)
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self.state = MediaState.Off
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def set_visible(self, display, status):
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"""
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Set the visibility of the widget
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"""
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if self.has_own_widget:
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display.phonon_widget.setVisible(status)
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def update_ui(self, display):
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"""
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Update the UI
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"""
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if display.media_object.state() == Phonon.PausedState and self.state != MediaState.Paused:
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self.stop(display)
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controller = display.controller
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if controller.media_info.end_time > 0:
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if display.media_object.currentTime() > controller.media_info.end_time * 1000:
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self.stop(display)
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self.set_visible(display, False)
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if not controller.seek_slider.isSliderDown():
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controller.seek_slider.blockSignals(True)
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controller.seek_slider.setSliderPosition(display.media_object.currentTime())
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controller.seek_slider.blockSignals(False)
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def get_media_display_css(self):
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"""
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Add css style sheets to htmlbuilder
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"""
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return ''
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def get_info(self):
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"""
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Return some info about this player
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"""
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return(translate('Media.player', 'Phonon is a media player which '
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'interacts with the operating system to provide media capabilities.') +
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'<br/> <strong>' + translate('Media.player', 'Audio') +
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'</strong><br/>' + str(self.audio_extensions_list) +
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'<br/><strong>' + translate('Media.player', 'Video') +
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'</strong><br/>' + str(self.video_extensions_list) + '<br/>')
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