Video & Audio Editing MCP Server

Instructions

Implementation Reference

• server.py:288-307 (handler)

  The handler function for the 'set_audio_sample_rate' MCP tool. It uses FFmpeg to resample the audio file to the specified sample rate (via 'ar' parameter) and handles errors gracefully.

  @mcp.tool()
  def set_audio_sample_rate(input_audio_path: str, output_audio_path: str, sample_rate: int) -> str:
      """Sets the sample rate for an audio file.
      Args:
          input_audio_path: Path to the source audio file.
          output_audio_path: Path to save the audio file with the new sample rate.
          sample_rate: Target audio sample rate in Hz (e.g., 44100, 48000).
      Returns:
          A status message indicating success or failure.
      """
      try:
          ffmpeg.input(input_audio_path).output(output_audio_path, ar=sample_rate).run(capture_stdout=True, capture_stderr=True)
          return f"Audio sample rate set to {sample_rate} Hz and saved to {output_audio_path}"
      except ffmpeg.Error as e:
          error_message = e.stderr.decode('utf8') if e.stderr else str(e)
          return f"Error setting audio sample rate: {error_message}"
      except FileNotFoundError:
          return f"Error: Input audio file not found at {input_audio_path}"
      except Exception as e:
          return f"An unexpected error occurred: {str(e)}"