Using moviepy v2.x to dub an audio clip over a video clip

gistfile1.txt

from argparse import ArgumentParser
from moviepy import VideoFileClip, AudioFileClip

def dub_video(video_path: str, audio_path: str, audio_start: int, output_path: str):
    """
    Dubs audio over a video clip.

    Args:
        video_path (str): Path to the video file.
        audio_path (str): Path to the audio file.
        audio_start (int): Where in the audio file to start from.
        output_path (str): Path to save the output video file.
    """
    try:
        video_clip = VideoFileClip(video_path)
        audio_clip = AudioFileClip(audio_path)
        audio_clip = audio_clip.subclipped(audio_start, audio_start + video_clip.duration)
        final_clip: VideoFileClip = video_clip.with_audio(audio_clip)
        final_clip.write_videofile(filename=output_path)
        print(f"Video with dubbing saved to {output_path}")
    except Exception as e:
        print(f"Error (video: {video_path}, audio: {audio_path}, output: {output_path}): {e}")


if __name__ == '__main__':
    parser = ArgumentParser(description="Dub a video with a new audio track.")
    parser.add_argument("-v", "--video", type=str, required=True, help="Path to input video (e.g., input.mp4)")
    parser.add_argument("-a", "--audio", type=str, required=True, help="Path to input audio (e.g., dub.mp3)")
    parser.add_argument("-s", "--start", type=int, default=0, help="Where to start audio extraction in s (e.g., 82)")
    parser.add_argument("-o", "--output", type=str, default="output.mp4", help="Path to output dubbed video (default: output.mp4)")
    args = parser.parse_args()
    dub_video(args.video, args.audio, args.start, args.output)