How to handle filebuffer instead of filenames

[CodSnow]

Obtaining audio files via network transfer

• e.g:
  • img = request.file.get('xxx')    # img_buff = BufferedReader(img)
    img_byte = BufferedReader.read(img_buff)    Flac_info = Flac(img_buff, len(img_byte))    info = Flac_info.load(tags=True, duration=True, image=True)

Then an error occurs：
  Invalid flac header

And Replace Flac with ID3, an error occurs：
  Unexpected end of file