Hi Stephen, Op vr 16-08-2002, om 06:01 schreef Stephen Crampton: > > Also, the image freezes briefly every so often. Do you have > > recommendations for how to keep the frame rate more or less constant? > > For instance, does anyone know what C routines would give my process a > higher than ordinary priority (I realize this means I would probably have > to run it as root)? When I'm running the video program, I don't want to > be interrupted by routine system processes. For separate threads, pthread has some functions for that. See pthread_setschedparam() in pthread.h. For the application (main thread), see 'man nice'. 'nice -n -10 -- <yourapp> [options]' would probably be a good start. In C, you would look at nice() (man 2 nice) or setpriority() (man setpriority). And indeed, setting negative priorities (negative means higher priority) requires root. Ronald -- - .-. - /V\ | Ronald Bultje <rbultje@xxxxxxxxxxxxxxxxxxx> - // \\ | Running: Linux-2.4.18-3 and OpenBSD 3.0 - /( )\ | http://ronald.bitfreak.net/ - ^^-^^
