mirror of https://gitlab.com/openlp/openlp.git
333 lines
12 KiB
Python
333 lines
12 KiB
Python
# -*- coding: utf-8 -*-
|
|
# vim: autoindent shiftwidth=4 expandtab textwidth=120 tabstop=4 softtabstop=4
|
|
|
|
###############################################################################
|
|
# OpenLP - Open Source Lyrics Projection #
|
|
# --------------------------------------------------------------------------- #
|
|
# Copyright (c) 2008-2019 OpenLP Developers #
|
|
# --------------------------------------------------------------------------- #
|
|
# This program is free software; you can redistribute it and/or modify it #
|
|
# under the terms of the GNU General Public License as published by the Free #
|
|
# Software Foundation; version 2 of the License. #
|
|
# #
|
|
# This program is distributed in the hope that it will be useful, but WITHOUT #
|
|
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or #
|
|
# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for #
|
|
# more details. #
|
|
# #
|
|
# You should have received a copy of the GNU General Public License along #
|
|
# with this program; if not, write to the Free Software Foundation, Inc., 59 #
|
|
# Temple Place, Suite 330, Boston, MA 02111-1307 USA #
|
|
###############################################################################
|
|
"""
|
|
The :mod:`~openlp.core.ui.media.systemplayer` contains the system (aka QtMultimedia) player component.
|
|
"""
|
|
import functools
|
|
import logging
|
|
import mimetypes
|
|
|
|
from PyQt5 import QtCore, QtMultimedia, QtMultimediaWidgets
|
|
|
|
from openlp.core.common.i18n import translate
|
|
from openlp.core.threading import ThreadWorker, is_thread_finished, run_thread
|
|
from openlp.core.ui.media import MediaState
|
|
from openlp.core.ui.media.mediaplayer import MediaPlayer
|
|
|
|
|
|
log = logging.getLogger(__name__)
|
|
|
|
ADDITIONAL_EXT = {
|
|
'audio/ac3': ['.ac3'],
|
|
'audio/flac': ['.flac'],
|
|
'audio/x-m4a': ['.m4a'],
|
|
'audio/midi': ['.mid', '.midi'],
|
|
'audio/x-mp3': ['.mp3'],
|
|
'audio/mpeg': ['.mp3', '.mp2', '.mpga', '.mpega', '.m4a'],
|
|
'audio/qcelp': ['.qcp'],
|
|
'audio/x-wma': ['.wma'],
|
|
'audio/x-ms-wma': ['.wma'],
|
|
'video/x-flv': ['.flv'],
|
|
'video/x-matroska': ['.mpv', '.mkv'],
|
|
'video/x-wmv': ['.wmv'],
|
|
'video/x-mpg': ['.mpg'],
|
|
'video/mpeg': ['.mp4', '.mts', '.mov'],
|
|
'video/x-ms-wmv': ['.wmv']
|
|
}
|
|
|
|
|
|
class SystemPlayer(MediaPlayer):
|
|
"""
|
|
A specialised version of the MediaPlayer class, which provides a QtMultimedia display.
|
|
"""
|
|
|
|
def __init__(self, parent):
|
|
"""
|
|
Constructor
|
|
"""
|
|
super(SystemPlayer, self).__init__(parent, 'system')
|
|
self.original_name = 'System'
|
|
self.display_name = '&System'
|
|
self.parent = parent
|
|
self.additional_extensions = ADDITIONAL_EXT
|
|
self.media_player = QtMultimedia.QMediaPlayer(None, QtMultimedia.QMediaPlayer.VideoSurface)
|
|
mimetypes.init()
|
|
media_service = self.media_player.service()
|
|
log.info(media_service.__class__.__name__)
|
|
# supportedMimeTypes doesn't return anything on Linux and Windows and
|
|
# the mimetypes it returns on Mac OS X may not be playable.
|
|
supported_codecs = self.media_player.supportedMimeTypes()
|
|
for mime_type in supported_codecs:
|
|
mime_type = str(mime_type)
|
|
log.info(mime_type)
|
|
if mime_type.startswith('audio/'):
|
|
self._add_to_list(self.audio_extensions_list, mime_type)
|
|
elif mime_type.startswith('video/'):
|
|
self._add_to_list(self.video_extensions_list, mime_type)
|
|
|
|
def _add_to_list(self, mime_type_list, mime_type):
|
|
"""
|
|
Add mimetypes to the provided list
|
|
"""
|
|
# Add all extensions which mimetypes provides us for supported types.
|
|
extensions = mimetypes.guess_all_extensions(mime_type)
|
|
for extension in extensions:
|
|
ext = '*%s' % extension
|
|
if ext not in mime_type_list:
|
|
mime_type_list.append(ext)
|
|
log.info('MediaPlugin: %s extensions: %s', mime_type, ' '.join(extensions))
|
|
|
|
def disconnect_slots(self, signal):
|
|
"""
|
|
Safely disconnect the slots from `signal`
|
|
"""
|
|
try:
|
|
signal.disconnect()
|
|
except TypeError:
|
|
# If disconnect() is called on a signal without slots, it throws a TypeError
|
|
pass
|
|
|
|
def setup(self, display):
|
|
"""
|
|
Set up the player widgets
|
|
:param display:
|
|
"""
|
|
display.video_widget = QtMultimediaWidgets.QVideoWidget(display)
|
|
display.video_widget.resize(display.size())
|
|
display.media_player = QtMultimedia.QMediaPlayer(display)
|
|
display.media_player.setVideoOutput(display.video_widget)
|
|
display.video_widget.raise_()
|
|
display.video_widget.hide()
|
|
self.has_own_widget = True
|
|
|
|
def check_available(self):
|
|
"""
|
|
Check if the player is available
|
|
"""
|
|
return True
|
|
|
|
def load(self, display):
|
|
"""
|
|
Load a video into the display
|
|
|
|
:param display: The display where the media is
|
|
"""
|
|
log.debug('load vid in System Controller')
|
|
controller = display.controller
|
|
volume = controller.media_info.volume
|
|
path = controller.media_info.file_info.absoluteFilePath()
|
|
# Check if file is playable due to mimetype filters being nonexistent on Linux and Windows
|
|
if self.check_media(path):
|
|
display.media_player.setMedia(QtMultimedia.QMediaContent(QtCore.QUrl.fromLocalFile(path)))
|
|
self.volume(display, volume)
|
|
return True
|
|
else:
|
|
return False
|
|
|
|
def resize(self, display):
|
|
"""
|
|
Resize the display
|
|
|
|
:param display: The display where the media is
|
|
"""
|
|
display.video_widget.resize(display.size())
|
|
|
|
def play(self, display):
|
|
"""
|
|
Play the current media item
|
|
|
|
:param display: The display where the media is
|
|
"""
|
|
log.info('Play the current item')
|
|
controller = display.controller
|
|
start_time = 0
|
|
if display.controller.is_live:
|
|
if self.get_live_state() != QtMultimedia.QMediaPlayer.PausedState and controller.media_info.start_time > 0:
|
|
start_time = controller.media_info.start_time
|
|
else:
|
|
if self.get_preview_state() != QtMultimedia.QMediaPlayer.PausedState and \
|
|
controller.media_info.start_time > 0:
|
|
start_time = controller.media_info.start_time
|
|
display.media_player.play()
|
|
if start_time > 0:
|
|
self.seek(display, controller.media_info.start_time * 1000)
|
|
self.volume(display, controller.media_info.volume)
|
|
self.disconnect_slots(display.media_player.durationChanged)
|
|
display.media_player.durationChanged.connect(functools.partial(self.set_duration, controller))
|
|
self.set_state(MediaState.Playing, display)
|
|
display.video_widget.raise_()
|
|
return True
|
|
|
|
def pause(self, display):
|
|
"""
|
|
Pause the current media item
|
|
|
|
:param display: The display where the media is
|
|
"""
|
|
display.media_player.pause()
|
|
if display.controller.is_live:
|
|
if self.get_live_state() == QtMultimedia.QMediaPlayer.PausedState:
|
|
self.set_state(MediaState.Paused, display)
|
|
else:
|
|
if self.get_preview_state() == QtMultimedia.QMediaPlayer.PausedState:
|
|
self.set_state(MediaState.Paused, display)
|
|
|
|
def stop(self, display):
|
|
"""
|
|
Stop the current media item
|
|
|
|
:param display: The display where the media is
|
|
"""
|
|
display.media_player.stop()
|
|
self.set_visible(display, False)
|
|
self.set_state(MediaState.Stopped, display)
|
|
|
|
def volume(self, display, volume):
|
|
"""
|
|
Set the volume
|
|
|
|
:param display: The display where the media is
|
|
:param volume: The volume to be set
|
|
"""
|
|
if display.has_audio:
|
|
display.media_player.setVolume(volume)
|
|
|
|
def seek(self, display, seek_value):
|
|
"""
|
|
Go to a particular point in the current media item
|
|
|
|
:param display: The display where the media is
|
|
:param seek_value: The where to seek to
|
|
"""
|
|
display.media_player.setPosition(seek_value)
|
|
|
|
def reset(self, display):
|
|
"""
|
|
Reset the media player
|
|
|
|
:param display: The display where the media is
|
|
"""
|
|
display.media_player.stop()
|
|
display.media_player.setMedia(QtMultimedia.QMediaContent())
|
|
self.set_visible(display, False)
|
|
display.video_widget.setVisible(False)
|
|
self.set_state(MediaState.Off, display)
|
|
|
|
def set_visible(self, display, status):
|
|
"""
|
|
Set the visibility of the widget
|
|
|
|
:param display: The display where the media is
|
|
:param status: The visibility status to be set
|
|
"""
|
|
if self.has_own_widget:
|
|
display.video_widget.setVisible(status)
|
|
|
|
@staticmethod
|
|
def set_duration(controller, duration):
|
|
"""
|
|
|
|
:param controller: the controller displaying the media
|
|
:param duration: how long is the media
|
|
:return:
|
|
"""
|
|
controller.seek_slider.setMaximum(controller.media_info.length)
|
|
|
|
def update_ui(self, display):
|
|
"""
|
|
Update the UI
|
|
|
|
:param display: The display where the media is
|
|
"""
|
|
if display.media_player.state() == QtMultimedia.QMediaPlayer.PausedState and self.state != MediaState.Paused:
|
|
self.pause(display)
|
|
controller = display.controller
|
|
if controller.media_info.end_time > 0:
|
|
if display.media_player.position() > controller.media_info.end_time:
|
|
self.stop(display)
|
|
self.set_visible(display, False)
|
|
if not controller.seek_slider.isSliderDown():
|
|
controller.seek_slider.blockSignals(True)
|
|
controller.seek_slider.setSliderPosition(display.media_player.position())
|
|
controller.seek_slider.blockSignals(False)
|
|
|
|
def get_media_display_css(self):
|
|
"""
|
|
Add css style sheets to htmlbuilder
|
|
"""
|
|
return ''
|
|
|
|
def get_info(self):
|
|
"""
|
|
Return some info about this player
|
|
"""
|
|
return (translate('Media.player', 'This media player uses your operating system '
|
|
'to provide media capabilities.') +
|
|
'<br/> <strong>' + translate('Media.player', 'Audio') +
|
|
'</strong><br/>' + str(self.audio_extensions_list) +
|
|
'<br/><strong>' + translate('Media.player', 'Video') +
|
|
'</strong><br/>' + str(self.video_extensions_list) + '<br/>')
|
|
|
|
def check_media(self, path):
|
|
"""
|
|
Check if a file can be played
|
|
Uses a separate QMediaPlayer in a thread
|
|
|
|
:param path: Path to file to be checked
|
|
:return: True if file can be played otherwise False
|
|
"""
|
|
check_media_worker = CheckMediaWorker(path)
|
|
check_media_worker.setVolume(0)
|
|
run_thread(check_media_worker, 'check_media')
|
|
while not is_thread_finished('check_media'):
|
|
self.application.processEvents()
|
|
return check_media_worker.result
|
|
|
|
|
|
class CheckMediaWorker(QtMultimedia.QMediaPlayer, ThreadWorker):
|
|
"""
|
|
Class used to check if a media file is playable
|
|
"""
|
|
def __init__(self, path):
|
|
super(CheckMediaWorker, self).__init__(None, QtMultimedia.QMediaPlayer.VideoSurface)
|
|
self.path = path
|
|
|
|
def start(self):
|
|
"""
|
|
Start the thread worker
|
|
"""
|
|
self.result = None
|
|
self.error.connect(functools.partial(self.signals, 'error'))
|
|
self.mediaStatusChanged.connect(functools.partial(self.signals, 'media'))
|
|
self.setMedia(QtMultimedia.QMediaContent(QtCore.QUrl.fromLocalFile(self.path)))
|
|
self.play()
|
|
|
|
def signals(self, origin, status):
|
|
if origin == 'media' and status == self.BufferedMedia:
|
|
self.result = True
|
|
self.stop()
|
|
self.quit.emit()
|
|
elif origin == 'error' and status != self.NoError:
|
|
self.result = False
|
|
self.stop()
|
|
self.quit.emit()
|