Splits input video into frames.
["input", "output"]: splits video specified by input into its frames and outputs them into the data collection specified at output.
["input",stepsize, "output"]: e.g. stepsize = 5 -> splits a video and takes every 5th frame, uploading them into the data collection.
You can specify the input as a data api url, a direct url to a video file, or a Youtube url. Keep in mind that youtube videos have to be licensed with creative commons.