Here the backtraces (it is important to note that crash appear only if the dimension of the video is "large"):
** Attachment added: "backtrace for laplace effect" http://librarian.launchpad.net/4272751/gdb-camorama-laplace.txt -- camorama crashes on laplace, mirror image effects https://launchpad.net/bugs/40750 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs