import sys import os import re import sqlite3 import subprocess from datetime import datetime, timezone from difflib import SequenceMatcher from pathlib import Path from PyQt6.QtWidgets import ( QApplication, QMainWindow, QWidget, QVBoxLayout, QHBoxLayout, QLabel, QPushButton, QLineEdit, QFileDialog, QFrame, QStatusBar, ) from PyQt6.QtCore import Qt, QThread, QTimer, pyqtSignal from PyQt6.QtGui import QPainter, QColor, QPen, QDragEnterEvent, QDropEvent import mpv def build_export_path(folder: str, basename: str, counter: int) -> str: filename = f"{basename}_{counter:03d}.mp4" return os.path.join(folder, filename) def format_time(seconds: float) -> str: m = int(seconds // 60) # Floor-truncate to 1 dp (not round) — prevents "X:60.0" rollover when # seconds is e.g. 59.95. This means display may lag true position by up to 0.1s. s = int(seconds % 60 * 10) / 10 return f"{m}:{s:04.1f}" def build_ffmpeg_command(input_path: str, start: float, output_path: str) -> list[str]: # -ss before -i: fast input-seeking. Safe here because we always re-encode # (libx264/aac), so there is no keyframe-alignment issue from pre-input seek. return [ "ffmpeg", "-y", "-ss", str(start), "-i", input_path, "-t", "8", "-c:v", "libx264", "-c:a", "aac", output_path, ] def _normalize_filename(filename: str) -> str: """Strip extension and common resolution/quality tags for fuzzy comparison.""" name = os.path.splitext(filename)[0].lower() # Use lookaround assertions instead of \b: \b treats '_' as a word char, # so 'clip_2160p' would not form a word boundary before '2160p'. name = re.sub( r'(? None: if not self._enabled: return self._con.execute( "INSERT OR REPLACE INTO processed (filename, processed_at) VALUES (?, ?)", (filename, datetime.now(timezone.utc).isoformat()), ) self._con.commit() def find_similar(self, filename: str) -> str | None: if not self._enabled: return None rows = self._con.execute( "SELECT DISTINCT filename FROM processed" ).fetchall() norm_new = _normalize_filename(filename) best_ratio, best_match = 0.0, None for (stored,) in rows: ratio = SequenceMatcher( None, norm_new, _normalize_filename(stored) ).ratio() if ratio >= 0.75 and ratio > best_ratio: best_ratio, best_match = ratio, stored return best_match class ExportWorker(QThread): finished = pyqtSignal(str) # output path error = pyqtSignal(str) # error message def __init__(self, input_path: str, start: float, output_path: str): super().__init__() self._input = input_path self._start = start self._output = output_path def run(self): cmd = build_ffmpeg_command(self._input, self._start, self._output) try: result = subprocess.run(cmd, capture_output=True, text=True, timeout=120) if result.returncode == 0: self.finished.emit(self._output) else: self.error.emit(result.stderr[-500:]) except FileNotFoundError: self.error.emit("ffmpeg not found — is it installed and on PATH?") except Exception as e: self.error.emit(str(e)) class TimelineWidget(QWidget): cursor_changed = pyqtSignal(float) # emits position in seconds def __init__(self): super().__init__() self.setMinimumHeight(40) self.setMouseTracking(True) self._duration = 0.0 self._cursor = 0.0 def set_duration(self, duration: float): self._duration = duration self._cursor = 0.0 self.update() def set_cursor(self, seconds: float): self._cursor = max(0.0, min(seconds, max(0.0, self._duration - 8.0))) self.update() def _pos_to_time(self, x: int) -> float: if self._duration <= 0 or self.width() <= 0: return 0.0 ratio = max(0.0, min(1.0, x / self.width())) return ratio * self._duration def paintEvent(self, event): p = QPainter(self) try: w, h = self.width(), self.height() # Background p.fillRect(0, 0, w, h, QColor(30, 30, 30)) if self._duration <= 0: return # 8s selection highlight x_start = int(self._cursor / self._duration * w) x_end = int(min(self._cursor + 8.0, self._duration) / self._duration * w) p.fillRect(x_start, 0, x_end - x_start, h, QColor(60, 120, 200, 120)) # Cursor line pen = QPen(QColor(255, 200, 0)) pen.setWidth(2) p.setPen(pen) p.drawLine(x_start, 0, x_start, h) finally: p.end() def mousePressEvent(self, event): self._seek(event.position().x()) def mouseMoveEvent(self, event): if event.buttons(): self._seek(event.position().x()) def _seek(self, x: float): t = self._pos_to_time(int(x)) self.set_cursor(t) self.cursor_changed.emit(self._cursor) class MpvWidget(QFrame): file_loaded = pyqtSignal() # emitted (on Qt thread) when a file is ready def __init__(self): super().__init__() self.setMinimumSize(640, 360) self.setStyleSheet("background: black;") # Required so Qt creates a real native window handle for mpv to embed into. # Without these, mpv opens a separate window instead of embedding. self.setAttribute(Qt.WidgetAttribute.WA_NativeWindow, True) self.setAttribute(Qt.WidgetAttribute.WA_PaintOnScreen, True) self._player = None def _init_player(self): if self._player is not None: return self._player = mpv.MPV( wid=str(int(self.winId())), keep_open=True, pause=True, ) # mpv fires events on its own thread; bounce to Qt thread via QTimer. @self._player.event_callback("file-loaded") def _on_file_loaded(event): QTimer.singleShot(0, self.file_loaded.emit) def load(self, path: str): self._init_player() self._player.play(path) def seek(self, t: float): if self._player: self._player.pause = True self._player.seek(t, "absolute") def play_loop(self, a: float, b: float): if self._player: self._player["ab-loop-a"] = a # Clamp b to duration so AB loop fires even on clips shorter than 8s. self._player["ab-loop-b"] = min(b, self._player.duration or b) self._player.pause = False def stop_loop(self): if self._player: # ab-loop-a/b are numeric properties — setting to "no" via dict # accessor throws TypeError. Disable loop via ab_loop_count instead. self._player.ab_loop_count = 0 self._player.pause = True def get_duration(self) -> float: if self._player: d = self._player.duration return d if d else 0.0 return 0.0 def closeEvent(self, event): if self._player: self._player.terminate() super().closeEvent(event) def main(): # Force X11/XCB mode so mpv can embed via wid — Wayland uses a different # surface handle that mpv's wid parameter cannot accept. os.environ.setdefault("QT_QPA_PLATFORM", "xcb") app = QApplication(sys.argv) app.setStyle("Fusion") app.setStyleSheet(""" QWidget { background: #1e1e1e; color: #ddd; } QPushButton { background: #333; border: 1px solid #555; padding: 4px 10px; border-radius: 3px; } QPushButton:hover { background: #444; } QPushButton:disabled { color: #555; } QLineEdit { background: #2a2a2a; border: 1px solid #555; padding: 3px; border-radius: 3px; } QStatusBar { color: #aaa; } """) win = MainWindow() win.show() sys.exit(app.exec()) class MainWindow(QMainWindow): def __init__(self): super().__init__() self.setWindowTitle("8-cut") self.resize(900, 680) self.setAcceptDrops(True) # State self._file_path: str = "" self._cursor: float = 0.0 self._export_counter: int = 1 self._export_worker: ExportWorker | None = None # Widgets self._mpv = MpvWidget() self._mpv.file_loaded.connect(self._after_load) self._timeline = TimelineWidget() self._timeline.cursor_changed.connect(self._on_cursor_changed) self._lbl_file = QLabel("Drop a video file here") self._lbl_file.setAlignment(Qt.AlignmentFlag.AlignCenter) self._lbl_file.setStyleSheet("color: #aaa; padding: 6px;") self._btn_play = QPushButton("▶ Play 8s") self._btn_play.setEnabled(False) self._btn_play.clicked.connect(self._on_play) self._btn_pause = QPushButton("⏸ Pause") self._btn_pause.setEnabled(False) self._btn_pause.clicked.connect(self._on_pause) self._lbl_cursor = QLabel("cursor: --") self._lbl_duration = QLabel("dur: --") self._txt_name = QLineEdit("clip") self._txt_name.setPlaceholderText("base name") self._txt_name.setMaximumWidth(150) self._txt_name.textChanged.connect(self._reset_counter) self._txt_folder = QLineEdit(str(Path.home())) self._txt_folder.textChanged.connect(self._reset_counter) self._btn_folder = QPushButton("Browse") self._btn_folder.clicked.connect(self._pick_folder) self._lbl_next = QLabel() self._update_next_label() self._btn_export = QPushButton("Export") self._btn_export.setEnabled(False) self._btn_export.clicked.connect(self._on_export) # Layout top_bar = QHBoxLayout() top_bar.addWidget(self._lbl_file, stretch=1) controls = QHBoxLayout() controls.addWidget(self._btn_play) controls.addWidget(self._btn_pause) controls.addStretch() controls.addWidget(self._lbl_cursor) controls.addWidget(self._lbl_duration) export_row = QHBoxLayout() export_row.addWidget(QLabel("Name:")) export_row.addWidget(self._txt_name) export_row.addWidget(QLabel("Folder:")) export_row.addWidget(self._txt_folder, stretch=1) export_row.addWidget(self._btn_folder) export_row.addWidget(self._lbl_next) export_row.addWidget(self._btn_export) root = QVBoxLayout() root.addLayout(top_bar) root.addWidget(self._mpv, stretch=1) root.addWidget(self._timeline) root.addLayout(controls) root.addLayout(export_row) container = QWidget() container.setLayout(root) self.setCentralWidget(container) self.setStatusBar(QStatusBar()) # --- Drag & Drop --- def dragEnterEvent(self, event: QDragEnterEvent): if event.mimeData().hasUrls(): event.acceptProposedAction() def dropEvent(self, event: QDropEvent): urls = event.mimeData().urls() if urls: path = urls[0].toLocalFile() self._load_file(path) def _load_file(self, path: str): if not os.path.isfile(path): self.statusBar().showMessage(f"Not a file: {os.path.basename(path)}") return self._file_path = path self._lbl_file.setText(os.path.basename(path)) self._mpv.load(path) # _after_load is triggered by MpvWidget.file_loaded signal (connected in __init__) def _after_load(self): dur = self._mpv.get_duration() self._timeline.set_duration(dur) self._cursor = 0.0 self._lbl_duration.setText(f"dur: {format_time(dur)}") self._lbl_cursor.setText(f"cursor: {format_time(0.0)}") self._btn_play.setEnabled(True) self._btn_pause.setEnabled(True) self._btn_export.setEnabled(True) # --- Playback --- def _on_cursor_changed(self, t: float): self._cursor = t self._lbl_cursor.setText(f"cursor: {format_time(t)}") self._mpv.seek(t) def _on_play(self): if not self._file_path: return self._mpv.play_loop(self._cursor, self._cursor + 8.0) def _on_pause(self): self._mpv.stop_loop() self._mpv.seek(self._cursor) # --- Export --- def _pick_folder(self): folder = QFileDialog.getExistingDirectory(self, "Select output folder") if folder: self._txt_folder.setText(folder) # textChanged fires _reset_counter def _reset_counter(self): # Counter resets to 1 when name or folder changes. ffmpeg's -y flag # will silently overwrite if the same name+folder is reused later. self._export_counter = 1 self._update_next_label() def _update_next_label(self): path = build_export_path( self._txt_folder.text(), self._txt_name.text() or "clip", self._export_counter, ) self._lbl_next.setText(f"→ {os.path.basename(path)}") def _on_export(self): if not self._file_path: return if self._export_worker and self._export_worker.isRunning(): self.statusBar().showMessage("Export already running…") return output = build_export_path( self._txt_folder.text(), self._txt_name.text() or "clip", self._export_counter, ) self._btn_export.setEnabled(False) self.statusBar().showMessage(f"Exporting {os.path.basename(output)}…") self._export_worker = ExportWorker(self._file_path, self._cursor, output) self._export_worker.finished.connect(self._on_export_done) self._export_worker.error.connect(self._on_export_error) self._export_worker.start() def _on_export_done(self, path: str): self._export_counter += 1 self._update_next_label() self._btn_export.setEnabled(True) self.statusBar().showMessage(f"Exported: {os.path.basename(path)}") def _on_export_error(self, msg: str): self._btn_export.setEnabled(True) self.statusBar().showMessage(f"Export error: {msg}") if __name__ == "__main__": main()