There is no direct way for modifying the vision.VideoPlayer menu objects. However, as a workaround, you may gain access to figure handle of the object and then access the individual parameters using 'findobj'. For example, the two parameters "Drop frame to improve performance" and " Fit to Window" can be modified by executing the following commands:
1. Gain access to figure handle of the vision.VideoPlayer object
>> fig_handle = gcf ;
2. Modify and execute "Fit to Window" option.
>>ftw = fig_handle.findobj ('TooltipString', 'Maintain fit to window')
3. Modify and toggle "Drop frame to improve performance" parameter. Note that the object can also be searched by sequentially navigating through the Children properties of the 'Playback' menu option.
>> df = fig_handle.findobj('Label', 'Dr&op Frames to Improve Performance')
More information on navigating object handles may be found in the documentation at the following links: