UPDATE FILE SIZE (Myth Protocol)
From MythTV Official Wiki
UPDATE_FILE_SIZE
Arguments
Event String: <chanid> <starttime> <filesize>
Additional: empty
Examples
81 BACKEND_MESSAGE[]:[]UPDATE_FILE_SIZE 4092 2009-09-29T02:58:42 290586314[]:[]empty
Description
Specifies a change in file size for an active recording.