113 lines
4.3 KiB
Python
113 lines
4.3 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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# Copyright (C) 2018 Andy Stewart
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#
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# Author: Andy Stewart <lazycat.manatee@gmail.com>
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# Maintainer: Andy Stewart <lazycat.manatee@gmail.com>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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from PyQt5.QtCore import QSizeF, Qt, QUrl
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from PyQt5.QtGui import QBrush, QColor
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from PyQt5.QtMultimedia import QMediaContent, QMediaPlayer
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from PyQt5.QtMultimediaWidgets import QGraphicsVideoItem
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from PyQt5.QtWidgets import QWidget, QGraphicsScene, QGraphicsView, QVBoxLayout
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from core.buffer import Buffer
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from core.utils import interactive
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class AppBuffer(Buffer):
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def __init__(self, buffer_id, url, config_dir, arguments, emacs_var_dict, module_path):
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Buffer.__init__(self, buffer_id, url, arguments, emacs_var_dict, module_path, True)
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self.background_color = QColor(0, 0, 0)
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self.add_widget(VideoPlayerWidget())
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self.buffer_widget.play(url)
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self.build_all_methods(self.buffer_widget)
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def all_views_hide(self):
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# Pause video before all views hdie, otherwise will got error "Internal data stream error".
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if self.buffer_widget.media_player.state() == QMediaPlayer.PlayingState:
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self.buffer_widget.media_player.pause()
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self.buffer_widget.video_need_replay = True
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def some_view_show(self):
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if self.buffer_widget.video_need_replay is True:
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self.buffer_widget.media_player.play()
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def save_session_data(self):
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return str(self.buffer_widget.media_player.position())
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def restore_session_data(self, session_data):
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position = int(session_data)
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self.buffer_widget.media_player.setPosition(position)
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def toggle_play(self):
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if self.buffer_widget.media_player.state() == QMediaPlayer.PlayingState:
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self.buffer_widget.media_player.pause()
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self.buffer_widget.video_need_replay = False
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else:
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self.buffer_widget.media_player.play()
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self.buffer_widget.video_need_replay = True
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def destroy_buffer(self):
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self.buffer_widget.media_player.pause()
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super().destroy_buffer()
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class VideoPlayerWidget(QWidget):
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def __init__(self, parent=None):
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super(VideoPlayerWidget, self).__init__(parent)
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self.scene = QGraphicsScene(self)
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self.scene.setBackgroundBrush(QBrush(QColor(0, 0, 0, 255)))
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self.graphics_view = QGraphicsView(self.scene)
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self.graphics_view.setHorizontalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
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self.graphics_view.setVerticalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
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self.graphics_view.setFrameStyle(0)
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self.graphics_view.setStyleSheet("QGraphicsView {background: transparent; border: 3px; outline: none;}")
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self.video_item = QGraphicsVideoItem()
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self.scene.addItem(self.video_item)
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self.layout = QVBoxLayout(self)
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self.layout.setContentsMargins(0, 0, 0, 0)
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self.layout.addWidget(self.graphics_view)
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self.media_player = QMediaPlayer(None, QMediaPlayer.VideoSurface)
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self.media_player.setVideoOutput(self.video_item)
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self.video_need_replay = False
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self.video_seek_durcation = 3000 # in milliseconds
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def resizeEvent(self, event):
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self.video_item.setSize(QSizeF(event.size().width(), event.size().height()))
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QWidget.resizeEvent(self, event)
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def play(self, url):
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self.media_player.setMedia(QMediaContent(QUrl.fromLocalFile(url)))
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self.media_player.play()
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@interactive
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def play_forward(self):
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video_position = self.media_player.position()
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self.media_player.setPosition(video_position + self.video_seek_durcation)
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@interactive
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def play_backward(self):
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video_position = self.media_player.position()
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self.media_player.setPosition(max(video_position - self.video_seek_durcation, 0))
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