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Get Video Length in Seconds

Description​

The get_video_length_in_seconds function retrieves the duration of a video in seconds. It uses ffmpeg to extract the video duration and calculates the total duration in seconds from the video file's metadata.

Function Signature:​

def get_video_length_in_seconds(file_path: str):

Parameters​

  • file_path (str): The path to the video file whose duration is to be determined.

Returns​

  • float: The total length of the video in seconds.

Example Usage​

video_length = get_video_length_in_seconds('video.mp4')
print(f"The video length is {video_length} seconds.")

Notes​

  • This function uses ffmpeg to extract the video duration by reading the video file's metadata.
  • The duration is parsed from the standard error output of ffmpeg using regular expressions.
  • The ffmpeg command used is ffmpeg -i <file_path>, which outputs metadata including the video duration.

Error Handling​

  • If the duration cannot be extracted from the video file, a ValueError is raised with a descriptive error message indicating that the video duration could not be determined.