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Hey there.I am looking forward to do some tweaks with the headtracking plugin.Since I do not have a webcam and i do not want to be deprived of the right and pleasure to the tweaking,I was wondering whether:
1)Is there a possibility by which we can make the plugin read from a video file?Only for the sake of testing?
(I tried to change the line 'cvCaptureFromCAM' to 'cvCaptureFromFile' in the code but I cannot figure out whether it works or not)
2)I tried to include printf statements in the code to see the outputs of those tweaks,tried to print the same messages on a file but could not find the file or the place where the output of those printf and fprintf statements are being redirected.Could you help me out in this direction?For eg.where could i get access to those messages etc.

I have installed :
1)Ubuntu 9.10
2)OpenCV-2.1.0
Thanks in advance,
Regards,
Sreevani