73 lines
2.0 KiB
Python
73 lines
2.0 KiB
Python
import os
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import subprocess
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import sys
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from PyQt6.QtCore import QThread, pyqtSignal
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from PyQt6.QtWidgets import QApplication, QMainWindow
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def build_export_path(folder: str, basename: str, counter: int) -> str:
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filename = f"{basename}_{counter:03d}.mp4"
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return os.path.join(folder, filename)
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def format_time(seconds: float) -> str:
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m = int(seconds // 60)
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s = int(seconds % 60 * 10) / 10 # floor-truncate to 1dp, prevents "X:60.0" rollover
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return f"{m}:{s:04.1f}"
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def build_ffmpeg_command(input_path: str, start: float, output_path: str) -> list[str]:
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# -ss before -i: fast input-seeking. Safe here because we always re-encode
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# (libx264/aac), so there is no keyframe-alignment issue from pre-input seek.
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return [
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"ffmpeg", "-y",
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"-ss", str(start),
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"-i", input_path,
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"-t", "8",
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"-c:v", "libx264",
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"-c:a", "aac",
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output_path,
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]
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class ExportWorker(QThread):
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finished = pyqtSignal(str) # output path
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error = pyqtSignal(str) # error message
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def __init__(self, input_path: str, start: float, output_path: str):
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super().__init__()
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self._input = input_path
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self._start = start
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self._output = output_path
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def run(self):
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cmd = build_ffmpeg_command(self._input, self._start, self._output)
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try:
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result = subprocess.run(cmd, capture_output=True, text=True, timeout=120)
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if result.returncode == 0:
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self.finished.emit(self._output)
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else:
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self.error.emit(result.stderr[-500:])
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except FileNotFoundError:
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self.error.emit("ffmpeg not found — is it installed and on PATH?")
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except Exception as e:
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self.error.emit(str(e))
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def main():
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app = QApplication(sys.argv)
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win = MainWindow()
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win.show()
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sys.exit(app.exec())
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class MainWindow(QMainWindow):
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def __init__(self):
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super().__init__()
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self.setWindowTitle("8-cut")
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self.resize(900, 650)
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if __name__ == "__main__":
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main()
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