Enhance the movie -L option to handle timestamps
|Target version:||Candidate for next minor release|
The -L option can set frame counters and any item from the input_ times.txt_ file. However, we wish to also allow either elapsed time and absolute time:
- Elapsed time could be selected via -Le and optionally take a scale +s<scale> to indicate the elapsed real time per frame [Default is implied by the frame rate].
- Absolute time would be read via one of the data columns and indicated if that column is selected in -L then we consult the FORMAT_DATE_MAP and FORMAT_DATE_CLOCK settings for formatting.
The -L option needs to be repeatable so that one can set both a frame counter in one corner and a clock in another.