encode_outro_segment_core.py

def encode_outro_segment_core(
    video_file_path: str,
    duration: float = 600.0,  # 10 minutes
    # ... other parameters
) -> Optional[str]:
    """Extract the final 10 minutes using ffmpeg's -sseof flag."""
    
    cmd = [
        "ffmpeg", "-y",
        "-sseof", f"-{duration}",  # Start from end minus duration
        "-i", str(input_path),
        # ... encoding parameters
    ]