Sergey Sharybin
6dc4ea34e4
This commit implements multi-threaded calculation of frames when building proxies. Both scaling and undistortion steps are now threaded. Frames and proxy resolution are still handled one-by-one, saving files after every single step. So if HDD is not so fast, this commit could have not so much benefit. Internal changes: - Added IMB_scaleImBuf_threaded which scales given image buffer in multiple threads and uses bilinear filtering. - libmv's camera intrinsics now have SetThreads() method which is used to specify how many OpenMP threads to use for buffer distortion/undistortion. And yeah, this code is using OpenMP for threading. - Reshuffled a bit libmv-capi calls and added function BKE_tracking_distortion_set_threads to specify number of threads used by intrinscis.