Frame Rate and Need to be in XML file ?

Well I think we do not need 30fps or even 20 fps rather 10 fps should be enough as finger does not moves as fast as eyes. Even eyes should be OK with 10 fps to track changes. I think higher fps would slow down the tracking. Using 30 fps is something like we have unnecessary points to draw a straight line which can be actually drawn with 2 points. Don’t prove our program is a slower one. :)

Actually I think we do not need more than 10 fps and can make it as our suggested standard.
If someone want to use our program then they can convert video to whatever fps they use.

Again the problem comes like we are making our program fixed with 30fps. In case some one try testing a video of 60fps or 15 fps still our xml file should have time = 1/30 * frameNo not 1/15 or 1/60 .

So is there any way picking up fps from video that someone feed to our program ?

If no then … use a standard small fps which is sufficient to analyze data without loosing data and do not take much time to track with our program.

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Fan was wondering whether we need to put frame rates in XML file ?

My Ans is:

We do not need to store frame rate. If we can pick it up from whatever video we open to process then
Calculate time t = (1/frame_rate) * frameNo and put in your XML file.

By this way XML file should have accurate time for a video with whatever fps it has.