If many calls to 'getframe' are occurring in succession, it is more efficient to avoid calling the 'writeVideo' function every time a new frame is to be written.
Instead, try using the 'repmat' function to pre-initialize a data structure containing a series of video frame structs returned by 'getframe', and write them all to the file at once using 'writeVideo', like so:
>> frameArray = repmat(getframe(figure), 100, 1)
frameArray =
100×1 struct array with fields:
cdata
colormap
This will minimize the amount of calls to the 'writeVideo' function, as well pre-allocate as much space as is needed to store the frames.
