How can I play a video in varying frame rate which depends on real time data?

[levent.tuter]

I have developed an application where I'm reading data from a device connected through a serial port. Now I want to display a video whose frame rate/playing speed changes according to the data that I get. The video file will be on a local drive, not a stream.

A pseudo code for the function to manage this, I am guessing, would be like the following;

10 Read Data D

20 Play Video for time T and with frame rate R

           where T is the time it takes to get a new data

               and R is a function of D

30 GoTo 10

I have checked the threads regarding the video applications but I'm really new to Labwindows/CVI and do not know what functions to use.

[Philipp R.]

Dear levent.tuter

Have a look at the example "C:\Programme\National Instruments\CVI81\samples\Vision\2. Functions\AVI\Read AVI Example.prj";
it can easily be extended to adapt the frame rate at run-time - just do something like

SetCtrlAttribute (panelHandle, PANEL_TIMER, ATTR_INTERVAL, (factor * 1.0 / (double)aviInfo.framesPerSecond));

Best regards

Philipp R.