ingestion/base64_loader.py

import base64
import tempfile


def decode_base64(data):

    header, encoded = data.split(",", 1)

    binary = base64.b64decode(encoded)

    tmp = tempfile.NamedTemporaryFile(
        delete=False,
        suffix=".mp4"
    )

    tmp.write(binary)
    tmp.close()

    return tmp.name