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Diffstat (limited to 'examples/multimedia/player/player.py')
| -rw-r--r-- | examples/multimedia/player/player.py | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/examples/multimedia/player/player.py b/examples/multimedia/player/player.py new file mode 100644 index 000000000..d28f2887e --- /dev/null +++ b/examples/multimedia/player/player.py @@ -0,0 +1,194 @@ +# Copyright (C) 2022 The Qt Company Ltd. +# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +"""PySide6 Multimedia player example""" + +import sys +from PySide6.QtCore import QStandardPaths, Qt, Slot +from PySide6.QtGui import QAction, QIcon, QKeySequence +from PySide6.QtWidgets import (QApplication, QDialog, QFileDialog, + QMainWindow, QSlider, QStyle, QToolBar) +from PySide6.QtMultimedia import (QAudioOutput, QMediaFormat, + QMediaPlayer) +from PySide6.QtMultimediaWidgets import QVideoWidget + + +AVI = "video/x-msvideo" # AVI + + +MP4 = 'video/mp4' + + +def get_supported_mime_types(): + result = [] + for f in QMediaFormat().supportedFileFormats(QMediaFormat.Decode): + mime_type = QMediaFormat(f).mimeType() + result.append(mime_type.name()) + return result + + +class MainWindow(QMainWindow): + + def __init__(self): + super().__init__() + + self._playlist = [] # FIXME 6.3: Replace by QMediaPlaylist? + self._playlist_index = -1 + self._audio_output = QAudioOutput() + self._player = QMediaPlayer() + self._player.setAudioOutput(self._audio_output) + + self._player.errorOccurred.connect(self._player_error) + + tool_bar = QToolBar() + self.addToolBar(tool_bar) + + file_menu = self.menuBar().addMenu("&File") + icon = QIcon.fromTheme(QIcon.ThemeIcon.DocumentOpen) + open_action = QAction(icon, "&Open...", self, + shortcut=QKeySequence.Open, triggered=self.open) + file_menu.addAction(open_action) + tool_bar.addAction(open_action) + icon = QIcon.fromTheme(QIcon.ThemeIcon.ApplicationExit) + exit_action = QAction(icon, "E&xit", self, + shortcut="Ctrl+Q", triggered=self.close) + file_menu.addAction(exit_action) + + play_menu = self.menuBar().addMenu("&Play") + style = self.style() + icon = QIcon.fromTheme(QIcon.ThemeIcon.MediaPlaybackStart, + style.standardIcon(QStyle.SP_MediaPlay)) + self._play_action = tool_bar.addAction(icon, "Play") + self._play_action.triggered.connect(self._player.play) + play_menu.addAction(self._play_action) + + icon = QIcon.fromTheme(QIcon.ThemeIcon.MediaSkipBackward, + style.standardIcon(QStyle.SP_MediaSkipBackward)) + self._previous_action = tool_bar.addAction(icon, "Previous") + self._previous_action.triggered.connect(self.previous_clicked) + play_menu.addAction(self._previous_action) + + icon = QIcon.fromTheme(QIcon.ThemeIcon.MediaPlaybackPause, + style.standardIcon(QStyle.SP_MediaPause)) + self._pause_action = tool_bar.addAction(icon, "Pause") + self._pause_action.triggered.connect(self._player.pause) + play_menu.addAction(self._pause_action) + + icon = QIcon.fromTheme(QIcon.ThemeIcon.MediaSkipForward, + style.standardIcon(QStyle.SP_MediaSkipForward)) + self._next_action = tool_bar.addAction(icon, "Next") + self._next_action.triggered.connect(self.next_clicked) + play_menu.addAction(self._next_action) + + icon = QIcon.fromTheme(QIcon.ThemeIcon.MediaPlaybackStop, + style.standardIcon(QStyle.SP_MediaStop)) + self._stop_action = tool_bar.addAction(icon, "Stop") + self._stop_action.triggered.connect(self._ensure_stopped) + play_menu.addAction(self._stop_action) + + self._volume_slider = QSlider() + self._volume_slider.setOrientation(Qt.Horizontal) + self._volume_slider.setMinimum(0) + self._volume_slider.setMaximum(100) + available_width = self.screen().availableGeometry().width() + self._volume_slider.setFixedWidth(available_width / 10) + self._volume_slider.setValue(self._audio_output.volume()) + self._volume_slider.setTickInterval(10) + self._volume_slider.setTickPosition(QSlider.TicksBelow) + self._volume_slider.setToolTip("Volume") + self._volume_slider.valueChanged.connect(self._audio_output.setVolume) + tool_bar.addWidget(self._volume_slider) + + icon = QIcon.fromTheme(QIcon.ThemeIcon.HelpAbout) + about_menu = self.menuBar().addMenu("&About") + about_qt_act = QAction(icon, "About &Qt", self, triggered=qApp.aboutQt) # noqa: F821 + about_menu.addAction(about_qt_act) + + self._video_widget = QVideoWidget() + self.setCentralWidget(self._video_widget) + self._player.playbackStateChanged.connect(self.update_buttons) + self._player.setVideoOutput(self._video_widget) + + self.update_buttons(self._player.playbackState()) + self._mime_types = [] + + def closeEvent(self, event): + self._ensure_stopped() + event.accept() + + @Slot() + def open(self): + self._ensure_stopped() + file_dialog = QFileDialog(self) + + is_windows = sys.platform == 'win32' + if not self._mime_types: + self._mime_types = get_supported_mime_types() + if (is_windows and AVI not in self._mime_types): + self._mime_types.append(AVI) + elif MP4 not in self._mime_types: + self._mime_types.append(MP4) + + file_dialog.setMimeTypeFilters(self._mime_types) + + default_mimetype = AVI if is_windows else MP4 + if default_mimetype in self._mime_types: + file_dialog.selectMimeTypeFilter(default_mimetype) + + movies_location = QStandardPaths.writableLocation(QStandardPaths.MoviesLocation) + file_dialog.setDirectory(movies_location) + if file_dialog.exec() == QDialog.Accepted: + url = file_dialog.selectedUrls()[0] + self._playlist.append(url) + self._playlist_index = len(self._playlist) - 1 + self._player.setSource(url) + self._player.play() + + @Slot() + def _ensure_stopped(self): + if self._player.playbackState() != QMediaPlayer.StoppedState: + self._player.stop() + + @Slot() + def previous_clicked(self): + # Go to previous track if we are within the first 5 seconds of playback + # Otherwise, seek to the beginning. + if self._player.position() <= 5000 and self._playlist_index > 0: + self._playlist_index -= 1 + self._playlist.previous() + self._player.setSource(self._playlist[self._playlist_index]) + else: + self._player.setPosition(0) + + @Slot() + def next_clicked(self): + if self._playlist_index < len(self._playlist) - 1: + self._playlist_index += 1 + self._player.setSource(self._playlist[self._playlist_index]) + + @Slot("QMediaPlayer::PlaybackState") + def update_buttons(self, state): + media_count = len(self._playlist) + self._play_action.setEnabled(media_count > 0 and state != QMediaPlayer.PlayingState) + self._pause_action.setEnabled(state == QMediaPlayer.PlayingState) + self._stop_action.setEnabled(state != QMediaPlayer.StoppedState) + self._previous_action.setEnabled(self._player.position() > 0) + self._next_action.setEnabled(media_count > 1) + + def show_status_message(self, message): + self.statusBar().showMessage(message, 5000) + + @Slot("QMediaPlayer::Error", str) + def _player_error(self, error, error_string): + print(error_string, file=sys.stderr) + self.show_status_message(error_string) + + +if __name__ == '__main__': + app = QApplication(sys.argv) + main_win = MainWindow() + available_geometry = main_win.screen().availableGeometry() + main_win.resize(available_geometry.width() / 3, + available_geometry.height() / 2) + main_win.show() + sys.exit(app.exec()) |