As showcased in the recent wwdc regarding action classifier can one use tfrecord files as testing and training data to create a model?
The action classifier cannot operate directly on TFRecord data. Instead, you can use either the original video files, or keypoints (previously extracted from video files) and stored as a MLDataTable, JSON, or CSV file. See this API reference for some more details: https://developer.apple.com/documentation/createml/mlactionclassifier/datasource