feat: Audio Playback

tagstudio/src/qt/widgets/media_player.py

@@ -0,0 +1,207 @@
+# Copyright (C) 2024 Travis Abendshien (CyanVoxel).
+# Licensed under the GPL-3.0 License.
+# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+
+import logging
+import typing
+from pathlib import Path
+from time import gmtime, strftime
+from typing import Any
+
+from PySide6.QtCore import Qt, QUrl
+from PySide6.QtGui import QIcon, QPixmap
+from PySide6.QtMultimedia import QAudioOutput, QMediaDevices, QMediaPlayer
+from PySide6.QtWidgets import (
+    QGridLayout,
+    QHBoxLayout,
+    QLabel,
+    QPushButton,
+    QSizePolicy,
+    QSlider,
+    QWidget,
+)
+
+if typing.TYPE_CHECKING:
+    from src.qt.ts_qt import QtDriver
+
+
+class MediaPlayer(QWidget):
+    """A basic media player widget.
+
+    Gives a basic control set to manage media playback.
+    """
+
+    def __init__(self, driver: "QtDriver") -> None:
+        super().__init__()
+        self.driver = driver
+
+        self.setFixedHeight(50)
+
+        self.filepath: Path | None = None
+        self.player = QMediaPlayer()
+        self.player.setAudioOutput(QAudioOutput(QMediaDevices().defaultAudioOutput(), self.player))
+
+        # Used to keep track of play state.
+        # It would be nice if we could use QMediaPlayer.PlaybackState,
+        # but this will always show StoppedState when changing
+        # tracks. Therefore, we wouldn't know if the previous
+        # state was paused or playing
+        self.is_paused = False
+
+        # Subscribe to player events from MediaPlayer
+        self.player.positionChanged.connect(self.player_position_changed)
+        self.player.mediaStatusChanged.connect(self.media_status_changed)
+        self.player.playingChanged.connect(self.playing_changed)
+        self.player.audioOutput().mutedChanged.connect(self.muted_changed)
+
+        # Media controls
+        self.base_layout = QGridLayout(self)
+        self.base_layout.setContentsMargins(0, 0, 0, 0)
+        self.base_layout.setSpacing(0)
+
+        self.pslider = QSlider(self)
+        self.pslider.setFocusPolicy(Qt.FocusPolicy.StrongFocus)
+        self.pslider.setTickPosition(QSlider.TickPosition.NoTicks)
+        self.pslider.setSingleStep(1)
+        self.pslider.setOrientation(Qt.Orientation.Horizontal)
+
+        self.pslider.sliderReleased.connect(self.slider_released)
+        self.pslider.valueChanged.connect(self.slider_value_changed)
+
+        self.media_btns_layout = QHBoxLayout()
+
+        policy = QSizePolicy(QSizePolicy.Policy.Fixed, QSizePolicy.Policy.Fixed)
+
+        self.play_pause = QPushButton("", self)
+        self.play_pause.setFlat(True)
+        self.play_pause.setSizePolicy(policy)
+        self.play_pause.clicked.connect(self.toggle_pause)
+
+        self.load_play_pause_icon(playing=False)
+
+        self.media_btns_layout.addWidget(self.play_pause)
+
+        self.mute = QPushButton("", self)
+        self.mute.setFlat(True)
+        self.mute.setSizePolicy(policy)
+        self.mute.clicked.connect(self.toggle_mute)
+
+        self.load_mute_unmute_icon(muted=False)
+
+        self.media_btns_layout.addWidget(self.mute)
+
+        self.position_label = QLabel("positionLabel")
+        self.position_label.setAlignment(Qt.AlignmentFlag.AlignRight)
+
+        self.base_layout.addWidget(self.pslider, 0, 0, 1, 2)
+        self.base_layout.addLayout(self.media_btns_layout, 1, 0)
+        self.base_layout.addWidget(self.position_label, 1, 1)
+
+    def format_time(self, ms: int) -> str:
+        """Format the given time.
+
+        Formats the given time in ms to a nicer format.
+
+        Args:
+            ms: Time in ms
+
+        Returns:
+            A formatted time:
+
+            "1:43"
+
+            The formatted time will only include the hour if
+            the provided time is at least 60 minutes.
+        """
+        time = gmtime(ms / 1000)
+        fmt = "%-H:%-M:%S" if time.tm_hour > 0 else "%-M:%S"
+
+        return strftime(fmt, time)
+
+    def toggle_pause(self) -> None:
+        """Toggle the pause state of the media."""
+        if self.player.isPlaying():
+            self.player.pause()
+            self.is_paused = True
+        else:
+            self.player.play()
+            self.is_paused = False
+
+    def toggle_mute(self) -> None:
+        """Toggle the mute state of the media."""
+        if self.player.audioOutput().isMuted():
+            self.player.audioOutput().setMuted(False)
+        else:
+            self.player.audioOutput().setMuted(True)
+
+    def playing_changed(self, playing: bool) -> None:
+        self.load_play_pause_icon(playing)
+
+    def muted_changed(self, muted: bool) -> None:
+        self.load_mute_unmute_icon(muted)
+
+    def stop(self) -> None:
+        """Clear the filepath and stop the player."""
+        self.filepath = None
+        self.player.stop()
+
+    def play(self, filepath: Path) -> None:
+        """Set the source of the QMediaPlayer and play."""
+        self.filepath = filepath
+        if not self.is_paused:
+            self.player.stop()
+            self.player.setSource(QUrl.fromLocalFile(self.filepath))
+            self.player.play()
+        else:
+            self.player.setSource(QUrl.fromLocalFile(self.filepath))
+
+    def load_play_pause_icon(self, playing: bool) -> None:
+        icon = self.driver.rm.pause_icon if playing else self.driver.rm.play_icon
+        self.set_icon(self.play_pause, icon)
+
+    def load_mute_unmute_icon(self, muted: bool) -> None:
+        icon = self.driver.rm.volume_icon if muted else self.driver.rm.volume_mute_icon
+        self.set_icon(self.mute, icon)
+
+    def set_icon(self, btn: QPushButton, icon: Any) -> None:
+        pix_map = QPixmap()
+        if pix_map.loadFromData(icon):
+            btn.setIcon(QIcon(pix_map))
+        else:
+            logging.error("failed to load svg file")
+
+    def slider_value_changed(self, value: int) -> None:
+        current = self.format_time(value)
+        duration = self.format_time(self.player.duration())
+        self.position_label.setText(f"{current} / {duration}")
+
+    def slider_released(self) -> None:
+        was_playing = self.player.isPlaying()
+        self.player.setPosition(self.pslider.value())
+
+        # Setting position causes the player to start playing again.
+        # We should reset back to initial state.
+        if not was_playing:
+            self.player.pause()
+
+    def player_position_changed(self, position: int) -> None:
+        if not self.pslider.isSliderDown():
+            # User isn't using the slider, so update position in widgets.
+            self.pslider.setValue(position)
+            current = self.format_time(self.player.position())
+            duration = self.format_time(self.player.duration())
+            self.position_label.setText(f"{current} / {duration}")
+
+        if self.player.duration() == position:
+            self.player.pause()
+            self.player.setPosition(0)
+
+    def media_status_changed(self, status: QMediaPlayer.MediaStatus) -> None:
+        # We can only set the slider duration once we know the size of the media
+        if status == QMediaPlayer.MediaStatus.LoadedMedia and self.filepath is not None:
+            self.pslider.setMinimum(0)
+            self.pslider.setMaximum(self.player.duration())
+
+            current = self.format_time(self.player.position())
+            duration = self.format_time(self.player.duration())
+            self.position_label.setText(f"{current} / {duration}")

tagstudio/src/qt/widgets/preview_panel.py

@@ -52,6 +52,7 @@
 from src.qt.modals.add_field import AddFieldModal
 from src.qt.platform_strings import PlatformStrings
 from src.qt.widgets.fields import FieldContainer
+from src.qt.widgets.media_player import MediaPlayer
 from src.qt.widgets.panel import PanelModal
 from src.qt.widgets.tag_box import TagBoxWidget
 from src.qt.widgets.text import TextWidget
@@ -163,6 +164,9 @@ def __init__(self, library: Library, driver: "QtDriver"):
             )
         )
 
+        self.media_player = MediaPlayer(driver)
+        self.media_player.hide()
+
         image_layout.addWidget(self.preview_img)
         image_layout.setAlignment(self.preview_img, Qt.AlignmentFlag.AlignCenter)
         image_layout.addWidget(self.preview_gif)
@@ -267,6 +271,7 @@ def __init__(self, library: Library, driver: "QtDriver"):
         )
 
         splitter.addWidget(self.image_container)
+        splitter.addWidget(self.media_player)
         splitter.addWidget(info_section)
         splitter.addWidget(self.libs_flow_container)
         splitter.setStretchFactor(1, 2)
@@ -534,6 +539,8 @@ def update_widgets(self) -> bool:
             self.preview_img.show()
             self.preview_vid.stop()
             self.preview_vid.hide()
+            self.media_player.hide()
+            self.media_player.stop()
             self.preview_gif.hide()
             self.selected = list(self.driver.selected)
             self.add_field_button.setHidden(True)
@@ -566,6 +573,8 @@ def update_widgets(self) -> bool:
             self.preview_img.show()
             self.preview_vid.stop()
             self.preview_vid.hide()
+            self.media_player.stop()
+            self.media_player.hide()
             self.preview_gif.hide()
 
             # If a new selection is made, update the thumbnail and filepath.
@@ -637,6 +646,9 @@ def update_widgets(self) -> bool:
                             rawpy._rawpy.LibRawFileUnsupportedError,
                         ):
                             pass
+                    elif MediaCategories.is_ext_in_category(ext, MediaCategories.AUDIO_TYPES):
+                        self.media_player.show()
+                        self.media_player.play(filepath)
                     elif MediaCategories.is_ext_in_category(
                         ext, MediaCategories.VIDEO_TYPES
                     ) and is_readable_video(filepath):
@@ -743,6 +755,8 @@ def update_widgets(self) -> bool:
             self.preview_gif.hide()
             self.preview_vid.stop()
             self.preview_vid.hide()
+            self.media_player.stop()
+            self.media_player.hide()
             self.update_date_label()
             if self.selected != self.driver.selected:
                 self.file_label.setText(f"<b>{len(self.driver.selected)}</b> Items Selected")