We do cutting rollers, very small in the MLT Framework http://www.mltframework.org/
How to specify a value for OUT source code (producer) in frames, a fractional number for example now 27.0 and need 27.27
or perhaps work in seconds rather than frames?
if we simply write 27.27 is rounded
Your question is not very clear, but the API documentation for converting a property to an integer might be useful. MLT does not support a fraction of a frame; a single video frame is the precision. In addition, this blog post linked to from the main documentation page, contains more information.
