How to name vide files by acquisition start time?

I want to record a number of videos using a loop, and use the start time of each recording as its file name, eg 123050 for 12:30:50. Is there any way I can do that in matlab?

Answer 1

[Stephen23]

Use now or clock to grab the time value, and then convert this to a string using datestr. You can use datestr's optional formatOut argument to specify how you want the string to look like:

datestr(clock,12)

or

datestr(clock,'HH:MM:SS')

should work

[IJ]

Thanks for answering, but I am not sure where to put that line in this code (it's part of the loop):

      diskLogger = VideoWriter(file_name_here);   
      vid.DiskLogger = diskLogger;

      start(vid)
      wait(vid, Inf);

Acquisition is hardware controlled, how do I prevent the time grab as soon as the loop is repeated, even if the video is still waiting for a trigger?

[Stephen23]

That depends entirely on which time value you want to use: at the trigger time, the begin or the end of the video sequence? You can try this yourself: try putting that code before start(vid), or before wait or after wait, depending on what time value you are interested in using.