Checked FileWriterPlugin is expecting frames before starting writing (#61)
Checked FileWriterPlugin is expecting frames before starting writing (#61)

* Checked FileWriterPlugin is expecting frames before starting writing

BC-499

* Improve comments to clarify conditional reasoning

BC-499

* Logging changes

odin-detector/odin-data,percival-detector/odin-data,odin-detector/odin-data,percival-detector/odin-data,odin-detector/odin-data,percival-detector/odin-data,odin-detector/odin-data,odin-detector/odin-data,percival-detector/odin-data,percival-detector/odin-data,percival-detector/odin-data,odin-detector/odin-data,percival-detector/odin-data,odin-detector/odin-data