answered 2012-10-19 06:20:37 -0600
You can use the VideoCapture::get. Take a look here. Example of use:
VideoCapture::get
openedvideo.get(CV_CAP_PROP_FPS)
updated 2012-10-19 06:21:44 -0600
double fps = openedvideo.get(CV_CAP_PROP_FPS)