用ffmpeg检查视频文件时长

一个视频文件的时长有很多种:

  • 容器时长
  • 流时长
  • 文件时长
def get_video_seconds(video_file_path: Path) -> int:
    import av
    with av.open(str(video_file_path), metadata_encoding='utf-8', metadata_errors='ignore') as container:
        stream = container.streams.video[0]
        return int(stream.frames/stream.average_rate)

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