Say that I have a 16:9 image and that I want to create a square thumbnail of it without distorting the image. the thumbnail would be 100 by 100 pixels. Finding the point on the 16:9 image where I want the thumbnail to start would those coordinate go into the dst_x/y or the src_x/y.
plus can someone tell me where the 0,0 coordinate is? Is it in the bottom left corner or is it in the top left corner, ect...
