pax
0a6818260e
The popout's VideoPlayer is constructed with no mpv attached — mpv
gets wired up in _ensure_mpv on the first set_media call. main_window's
_open_fullscreen_preview syncs preview→popout state right after the
popout is constructed, so it writes is_muted *before* mpv exists. The
old setter only forwarded to mpv if mpv was set:
@is_muted.setter
def is_muted(self, val: bool) -> None:
if self._mpv:
self._mpv.mute = val
self._mute_btn.setText("Unmute" if val else "Mute")
For the popout's pre-mpv VideoPlayer this updated the button text but
silently dropped the value. _ensure_mpv then created the mpv instance
later with default mute=False, so the popout always opened unmuted
even when the embedded preview was muted (or when a previous popout
session had muted and then closed).
Fix: introduce a Python-side _pending_mute field that survives the
lazy mpv creation. The setter writes to _pending_mute unconditionally
and forwards to mpv if it exists. The getter returns _mpv.mute when
mpv is set, otherwise _pending_mute. _ensure_mpv replays _pending_mute
into the freshly-created mpv instance after applying the volume from
the slider, mirroring the existing volume-from-slider replay pattern
that already worked because the slider widget exists from construction
and acts as the volume's persistent storage.
Also threaded _pending_mute through _toggle_mute so the click-driven
toggle path stays consistent with the setter path — without it, a
mute toggle inside the popout would update mpv but not _pending_mute,
and the next sync round-trip via the setter would clobber it.
Verified manually:
- popout video, click mute, close popout, reopen on same video →
mute persisted (button shows "Unmute", audio silent)
- toggle to unmute, close, reopen → unmuted persisted
- embedded preview video mute → close popout → state propagates
correctly via _on_fullscreen_closed's reverse sync
527 lines
22 KiB
Python
527 lines
22 KiB
Python
"""mpv-backed video player widget with transport controls."""
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from __future__ import annotations
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from PySide6.QtCore import Qt, QTimer, Signal, Property
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from PySide6.QtGui import QColor
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from PySide6.QtWidgets import (
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QWidget, QVBoxLayout, QHBoxLayout, QLabel, QPushButton, QSlider, QStyle,
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)
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import mpv as mpvlib
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from .mpv_gl import _MpvGLWidget
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class _ClickSeekSlider(QSlider):
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"""Slider that jumps to the clicked position instead of page-stepping."""
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clicked_position = Signal(int)
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def mousePressEvent(self, event):
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if event.button() == Qt.MouseButton.LeftButton:
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val = QStyle.sliderValueFromPosition(
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self.minimum(), self.maximum(), int(event.position().x()), self.width()
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)
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self.setValue(val)
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self.clicked_position.emit(val)
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super().mousePressEvent(event)
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# -- Video Player (mpv backend via OpenGL render API) --
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class VideoPlayer(QWidget):
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"""Video player with transport controls, powered by mpv."""
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play_next = Signal() # emitted when video ends in "Next" mode
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media_ready = Signal() # emitted when media is loaded and duration is known
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video_size = Signal(int, int) # (width, height) emitted when video dimensions are known
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# QSS-controllable letterbox / pillarbox color. mpv paints the area
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# around the video frame in this color instead of the default black,
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# so portrait videos in a landscape preview slot (or vice versa) blend
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# into the panel theme instead of sitting in a hard black box.
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# Set via `VideoPlayer { qproperty-letterboxColor: ${bg}; }` in a theme.
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# The class default below is just a fallback; __init__ replaces it
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# with the current palette's Window color so systems without a custom
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# QSS (e.g. Windows dark/light mode driven entirely by QPalette) get
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# a letterbox that automatically matches the OS background.
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_letterbox_color = QColor("#000000")
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def _get_letterbox_color(self): return self._letterbox_color
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def _set_letterbox_color(self, c):
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self._letterbox_color = QColor(c) if isinstance(c, str) else c
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self._apply_letterbox_color()
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letterboxColor = Property(QColor, _get_letterbox_color, _set_letterbox_color)
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def _apply_letterbox_color(self) -> None:
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"""Push the current letterbox color into mpv. No-op if mpv hasn't
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been initialized yet — _ensure_mpv() calls this after creating the
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instance so a QSS-set property still takes effect on first use."""
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if self._mpv is None:
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return
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try:
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self._mpv['background'] = 'color'
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self._mpv['background-color'] = self._letterbox_color.name()
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except Exception:
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pass
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def __init__(self, parent: QWidget | None = None, embed_controls: bool = True) -> None:
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"""
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embed_controls: When True (default), the transport controls bar is
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added to this VideoPlayer's own layout below the video — used by the
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popout window which then reparents the bar to its overlay layer.
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When False, the controls bar is constructed but never inserted into
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any layout, leaving the embedded preview a clean video surface with
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no transport controls visible. Use the popout for playback control.
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"""
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super().__init__(parent)
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# Initialize the letterbox color from the current palette's Window
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# role so dark/light mode (or any system without a custom QSS)
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# gets a sensible default that matches the surrounding panel.
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# The QSS qproperty-letterboxColor on the bundled themes still
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# overrides this — Qt calls the setter during widget polish,
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# which happens AFTER __init__ when the widget is shown.
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from PySide6.QtGui import QPalette
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self._letterbox_color = self.palette().color(QPalette.ColorRole.Window)
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layout = QVBoxLayout(self)
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layout.setContentsMargins(0, 0, 0, 0)
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layout.setSpacing(0)
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# Video surface — mpv renders via OpenGL render API
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self._gl_widget = _MpvGLWidget()
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layout.addWidget(self._gl_widget, stretch=1)
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# mpv reference (set by _ensure_mpv)
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self._mpv: mpvlib.MPV | None = None
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# Controls bar — in preview panel this sits in the layout normally;
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# in slideshow mode, FullscreenPreview reparents it as a floating overlay.
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self._controls_bar = QWidget(self)
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controls = QHBoxLayout(self._controls_bar)
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controls.setContentsMargins(4, 2, 4, 2)
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# Compact-padding override matches the top preview toolbar so the
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# bottom controls bar reads as part of the same panel rather than
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# as a stamped-in overlay. Bundled themes' default `padding: 5px 12px`
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# is too wide for short labels in narrow button slots.
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_ctrl_btn_style = "padding: 2px 6px;"
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self._play_btn = QPushButton("Play")
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self._play_btn.setMaximumWidth(65)
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self._play_btn.setStyleSheet(_ctrl_btn_style)
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self._play_btn.clicked.connect(self._toggle_play)
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controls.addWidget(self._play_btn)
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self._time_label = QLabel("0:00")
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self._time_label.setMaximumWidth(45)
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controls.addWidget(self._time_label)
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self._seek_slider = _ClickSeekSlider(Qt.Orientation.Horizontal)
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self._seek_slider.setRange(0, 0)
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self._seek_slider.sliderMoved.connect(self._seek)
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self._seek_slider.clicked_position.connect(self._seek)
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controls.addWidget(self._seek_slider, stretch=1)
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self._duration_label = QLabel("0:00")
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self._duration_label.setMaximumWidth(45)
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controls.addWidget(self._duration_label)
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self._vol_slider = QSlider(Qt.Orientation.Horizontal)
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self._vol_slider.setRange(0, 100)
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self._vol_slider.setValue(50)
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self._vol_slider.setFixedWidth(60)
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self._vol_slider.valueChanged.connect(self._set_volume)
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controls.addWidget(self._vol_slider)
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self._mute_btn = QPushButton("Mute")
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self._mute_btn.setMaximumWidth(80)
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self._mute_btn.setStyleSheet(_ctrl_btn_style)
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self._mute_btn.clicked.connect(self._toggle_mute)
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controls.addWidget(self._mute_btn)
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self._autoplay = True
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self._autoplay_btn = QPushButton("Auto")
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self._autoplay_btn.setMaximumWidth(70)
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self._autoplay_btn.setStyleSheet(_ctrl_btn_style)
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self._autoplay_btn.setCheckable(True)
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self._autoplay_btn.setChecked(True)
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self._autoplay_btn.setToolTip("Auto-play videos when selected")
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self._autoplay_btn.clicked.connect(self._toggle_autoplay)
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self._autoplay_btn.hide()
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controls.addWidget(self._autoplay_btn)
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self._loop_state = 0 # 0=Loop, 1=Once, 2=Next
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self._loop_btn = QPushButton("Loop")
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self._loop_btn.setMaximumWidth(60)
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self._loop_btn.setStyleSheet(_ctrl_btn_style)
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self._loop_btn.setToolTip("Loop: repeat / Once: stop at end / Next: advance")
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self._loop_btn.clicked.connect(self._cycle_loop)
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controls.addWidget(self._loop_btn)
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# NO styleSheet here. The popout (FullscreenPreview) re-applies its
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# own `_slideshow_controls` overlay styling after reparenting the
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# bar to its central widget — see FullscreenPreview.__init__ — so
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# the popout still gets the floating dark-translucent look. The
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# embedded preview leaves the bar unstyled so it inherits the
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# panel theme and visually matches the Bookmark/Save/BL Tag bar
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# at the top of the panel rather than looking like a stamped-in
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# overlay box.
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if embed_controls:
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layout.addWidget(self._controls_bar)
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self._eof_pending = False
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# Stale-eof suppression window. mpv emits `eof-reached=True`
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# whenever a file ends — including via `command('stop')` —
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# and the observer fires asynchronously on mpv's event thread.
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# When set_media swaps to a new file, the previous file's stop
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# generates an eof event that can race with `play_file`'s
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# `_eof_pending = False` reset and arrive AFTER it, sticking
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# the bool back to True. The next `_poll` then runs
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# `_handle_eof` and emits `play_next` in Loop=Next mode →
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# auto-advance past the post the user wanted → SKIP.
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#
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# Fix: ignore eof events for `_eof_ignore_window_secs` after
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# each `play_file` call. The race is single-digit ms, so
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# 250ms is comfortably wide for the suppression and narrow
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# enough not to mask a real EOF on the shortest possible
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# videos (booru video clips are always >= 1s).
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self._eof_ignore_until: float = 0.0
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self._eof_ignore_window_secs: float = 0.25
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# Seek-pending pin window — covers the user-clicked-the-seek-slider
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# race. The flow: user clicks slider → _ClickSeekSlider.setValue
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# (visual jumps to click position) → clicked_position emits →
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# _seek dispatches mpv.seek (async on mpv's thread). Meanwhile
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# the 100ms _poll tick reads mpv.time_pos (still the OLD
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# position) and writes it back to the slider via setValue,
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# snapping the slider visually backward until mpv catches up.
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# The isSliderDown guard at line ~425 only suppresses the
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# writeback during a drag — fast clicks don't trigger
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# isSliderDown. Defence: instead of just *suppressing* the
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# writeback during the window, we *pin* the slider to the user's
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# target position on every poll tick that lands inside the
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# window. That way mpv's lag — however long it is up to the
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# window length — is invisible. After the window expires,
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# normal mpv-driven slider updates resume.
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#
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# Window is wider than the eof one (500ms vs 250ms) because
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# network/streaming seeks can take longer than the local-cache
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# seeks the eof window was sized for.
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self._seek_pending_until: float = 0.0
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self._seek_target_ms: int = 0
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self._seek_pin_window_secs: float = 0.5
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# Polling timer for position/duration/pause/eof state
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self._poll_timer = QTimer(self)
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self._poll_timer.setInterval(100)
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self._poll_timer.timeout.connect(self._poll)
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# Pending values from mpv observers (written from mpv thread)
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self._pending_duration: float | None = None
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self._media_ready_fired = False
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self._current_file: str | None = None
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# Last reported source video size — used to dedupe video-params
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# observer firings so widget-driven re-emissions don't trigger
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# repeated _fit_to_content calls (which would loop forever).
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self._last_video_size: tuple[int, int] | None = None
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# Pending mute state — survives the lazy mpv creation. The popout's
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# video player is constructed with no mpv attached (mpv is wired
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# in _ensure_mpv on first set_media), and main_window's open-popout
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# state sync writes is_muted before mpv exists. Without a Python-
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# side fallback the value would be lost — the setter would update
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# button text but the actual mpv instance (created later) would
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# spawn unmuted by default. _ensure_mpv replays this on creation.
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self._pending_mute: bool = False
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def _ensure_mpv(self) -> mpvlib.MPV:
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"""Set up mpv callbacks on first use. MPV instance is pre-created."""
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if self._mpv is not None:
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return self._mpv
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self._mpv = self._gl_widget._mpv
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self._mpv['loop-file'] = 'inf' # default to loop mode
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self._mpv.volume = self._vol_slider.value()
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self._mpv.mute = self._pending_mute
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self._mpv.observe_property('duration', self._on_duration_change)
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self._mpv.observe_property('eof-reached', self._on_eof_reached)
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self._mpv.observe_property('video-params', self._on_video_params)
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self._pending_video_size: tuple[int, int] | None = None
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# Push any QSS-set letterbox color into mpv now that the instance
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# exists. The qproperty-letterboxColor setter is a no-op if mpv
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# hasn't been initialized yet, so we have to (re)apply on init.
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self._apply_letterbox_color()
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return self._mpv
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# -- Public API (used by app.py for state sync) --
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@property
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def volume(self) -> int:
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return self._vol_slider.value()
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@volume.setter
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def volume(self, val: int) -> None:
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self._vol_slider.setValue(val)
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@property
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def is_muted(self) -> bool:
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if self._mpv:
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return bool(self._mpv.mute)
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return self._pending_mute
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@is_muted.setter
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def is_muted(self, val: bool) -> None:
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self._pending_mute = val
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if self._mpv:
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self._mpv.mute = val
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self._mute_btn.setText("Unmute" if val else "Mute")
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@property
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def autoplay(self) -> bool:
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return self._autoplay
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@autoplay.setter
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def autoplay(self, val: bool) -> None:
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self._autoplay = val
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self._autoplay_btn.setChecked(val)
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self._autoplay_btn.setText("Autoplay" if val else "Manual")
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@property
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def loop_state(self) -> int:
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return self._loop_state
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@loop_state.setter
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def loop_state(self, val: int) -> None:
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self._loop_state = val
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labels = ["Loop", "Once", "Next"]
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self._loop_btn.setText(labels[val])
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self._autoplay_btn.setVisible(val == 2)
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self._apply_loop_to_mpv()
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def get_position_ms(self) -> int:
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if self._mpv and self._mpv.time_pos is not None:
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return int(self._mpv.time_pos * 1000)
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return 0
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def seek_to_ms(self, ms: int) -> None:
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if self._mpv:
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self._mpv.seek(ms / 1000.0, 'absolute+exact')
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def play_file(self, path: str, info: str = "") -> None:
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"""Play a file from a local path OR a remote http(s) URL.
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URL playback is the fast path for uncached videos: rather than
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waiting for `download_image` to finish writing the entire file
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to disk before mpv touches it, the load flow hands mpv the
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remote URL and lets mpv stream + buffer + render the first
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frame in parallel with the cache-populating download. mpv's
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first frame typically lands in 1-2s instead of waiting for
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the full multi-MB transfer.
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For URL paths we set the `referrer` per-file option from the
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booru's hostname so CDNs that gate downloads on Referer don't
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reject mpv's request — same logic our own httpx client uses
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in `cache._referer_for`. python-mpv's `loadfile()` accepts
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per-file `**options` kwargs that become `--key=value` overrides
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for the duration of that file.
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"""
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m = self._ensure_mpv()
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self._gl_widget.ensure_gl_init()
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self._current_file = path
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self._media_ready_fired = False
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self._pending_duration = None
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self._eof_pending = False
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# Open the stale-eof suppression window. Any eof-reached event
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# arriving from mpv's event thread within the next 250ms is
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# treated as belonging to the previous file's stop and
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# ignored — see the long comment at __init__'s
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# `_eof_ignore_until` definition for the race trace.
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import time as _time
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self._eof_ignore_until = _time.monotonic() + self._eof_ignore_window_secs
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self._last_video_size = None # reset dedupe so new file fires a fit
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self._apply_loop_to_mpv()
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if path.startswith(("http://", "https://")):
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from urllib.parse import urlparse
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from ...core.cache import _referer_for
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referer = _referer_for(urlparse(path))
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m.loadfile(path, "replace", referrer=referer)
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else:
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m.loadfile(path)
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if self._autoplay:
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m.pause = False
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else:
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m.pause = True
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self._play_btn.setText("Pause" if not m.pause else "Play")
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self._poll_timer.start()
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def stop(self) -> None:
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self._poll_timer.stop()
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if self._mpv:
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self._mpv.command('stop')
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self._time_label.setText("0:00")
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self._duration_label.setText("0:00")
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self._seek_slider.setRange(0, 0)
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self._play_btn.setText("Play")
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def pause(self) -> None:
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if self._mpv:
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self._mpv.pause = True
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self._play_btn.setText("Play")
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def resume(self) -> None:
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if self._mpv:
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self._mpv.pause = False
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self._play_btn.setText("Pause")
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# -- Internal controls --
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def _toggle_play(self) -> None:
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if not self._mpv:
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return
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self._mpv.pause = not self._mpv.pause
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self._play_btn.setText("Play" if self._mpv.pause else "Pause")
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def _toggle_autoplay(self, checked: bool = True) -> None:
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self._autoplay = self._autoplay_btn.isChecked()
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self._autoplay_btn.setText("Autoplay" if self._autoplay else "Manual")
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def _cycle_loop(self) -> None:
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self.loop_state = (self._loop_state + 1) % 3
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def _apply_loop_to_mpv(self) -> None:
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if not self._mpv:
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return
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if self._loop_state == 0: # Loop
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self._mpv['loop-file'] = 'inf'
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else: # Once or Next
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self._mpv['loop-file'] = 'no'
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def _seek(self, pos: int) -> None:
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"""Seek to position in milliseconds (from slider)."""
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if self._mpv:
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import time as _time
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self._seek_target_ms = pos
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self._seek_pending_until = _time.monotonic() + self._seek_pin_window_secs
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self._mpv.seek(pos / 1000.0, 'absolute')
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def _seek_relative(self, ms: int) -> None:
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if self._mpv:
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self._mpv.seek(ms / 1000.0, 'relative+exact')
|
|
|
|
def _set_volume(self, val: int) -> None:
|
|
if self._mpv:
|
|
self._mpv.volume = val
|
|
|
|
def _toggle_mute(self) -> None:
|
|
if self._mpv:
|
|
self._mpv.mute = not self._mpv.mute
|
|
self._pending_mute = bool(self._mpv.mute)
|
|
self._mute_btn.setText("Unmute" if self._mpv.mute else "Mute")
|
|
|
|
# -- mpv callbacks (called from mpv thread) --
|
|
|
|
def _on_video_params(self, _name: str, value) -> None:
|
|
"""Called from mpv thread when video dimensions become known."""
|
|
if isinstance(value, dict) and value.get('w') and value.get('h'):
|
|
new_size = (value['w'], value['h'])
|
|
# mpv re-fires video-params on output-area changes too. Dedupe
|
|
# against the source dimensions we last reported so resizing the
|
|
# popout doesn't kick off a fit→resize→fit feedback loop.
|
|
if new_size != self._last_video_size:
|
|
self._last_video_size = new_size
|
|
self._pending_video_size = new_size
|
|
|
|
def _on_eof_reached(self, _name: str, value) -> None:
|
|
"""Called from mpv thread when eof-reached changes.
|
|
|
|
Suppresses eof events that arrive within the post-play_file
|
|
ignore window — those are stale events from the previous
|
|
file's stop and would otherwise race the `_eof_pending=False`
|
|
reset and trigger a spurious play_next auto-advance.
|
|
"""
|
|
if value is True:
|
|
import time as _time
|
|
if _time.monotonic() < self._eof_ignore_until:
|
|
# Stale eof from a previous file's stop. Drop it.
|
|
return
|
|
self._eof_pending = True
|
|
|
|
def _on_duration_change(self, _name: str, value) -> None:
|
|
if value is not None and value > 0:
|
|
self._pending_duration = value
|
|
|
|
# -- Main-thread polling --
|
|
|
|
def _poll(self) -> None:
|
|
if not self._mpv:
|
|
return
|
|
# Position
|
|
pos = self._mpv.time_pos
|
|
if pos is not None:
|
|
pos_ms = int(pos * 1000)
|
|
if not self._seek_slider.isSliderDown():
|
|
# Pin the slider to the user's target while a seek is in
|
|
# flight — mpv processes seek async, and any poll tick
|
|
# that fires before mpv reports the new position would
|
|
# otherwise snap the slider backward. Force the value to
|
|
# the target every tick inside the pin window; after the
|
|
# window expires, mpv has caught up and normal writes
|
|
# resume. See __init__'s `_seek_pin_window_secs` block
|
|
# for the race trace.
|
|
import time as _time
|
|
if _time.monotonic() < self._seek_pending_until:
|
|
self._seek_slider.setValue(self._seek_target_ms)
|
|
else:
|
|
self._seek_slider.setValue(pos_ms)
|
|
self._time_label.setText(self._fmt(pos_ms))
|
|
|
|
# Duration (from observer)
|
|
dur = self._pending_duration
|
|
if dur is not None:
|
|
dur_ms = int(dur * 1000)
|
|
if self._seek_slider.maximum() != dur_ms:
|
|
self._seek_slider.setRange(0, dur_ms)
|
|
self._duration_label.setText(self._fmt(dur_ms))
|
|
if not self._media_ready_fired:
|
|
self._media_ready_fired = True
|
|
self.media_ready.emit()
|
|
|
|
# Pause state
|
|
paused = self._mpv.pause
|
|
expected_text = "Play" if paused else "Pause"
|
|
if self._play_btn.text() != expected_text:
|
|
self._play_btn.setText(expected_text)
|
|
|
|
# Video size (set by observer on mpv thread, emitted here on main thread)
|
|
if self._pending_video_size is not None:
|
|
w, h = self._pending_video_size
|
|
self._pending_video_size = None
|
|
self.video_size.emit(w, h)
|
|
|
|
# EOF (set by observer on mpv thread, handled here on main thread)
|
|
if self._eof_pending:
|
|
self._handle_eof()
|
|
|
|
def _handle_eof(self) -> None:
|
|
"""Handle end-of-file on the main thread."""
|
|
if not self._eof_pending:
|
|
return
|
|
self._eof_pending = False
|
|
if self._loop_state == 1: # Once
|
|
self.pause()
|
|
elif self._loop_state == 2: # Next
|
|
self.pause()
|
|
self.play_next.emit()
|
|
|
|
@staticmethod
|
|
def _fmt(ms: int) -> str:
|
|
s = ms // 1000
|
|
m = s // 60
|
|
return f"{m}:{s % 60:02d}"
|
|
|
|
def destroy(self, *args, **kwargs) -> None:
|
|
self._poll_timer.stop()
|
|
self._gl_widget.cleanup()
|
|
self._mpv = None
|
|
super().destroy(*args, **kwargs)
|