SGA: A Sporadic GDI Adapter for Smooth Motion Recording on Computer Screen

摘要: Users need to record whole motions on their computer screens in many applications, such as distance learning, video/audio conference, share desktop and remote control etc. Capturing from VGA output interfaces form a video capturing desktops become proprietary file are two technologies screen. (1)Using capture video, images of screen the usually blurred recorded is large. (2)Using daemon utilizes too much system resource. Therefore, recording quality cannot be guaranteed useri¦s operations computers definitely affected. This paper focuses improving performance directly desktop. A dynamic mechanism, called Sporadic GDI Adapter (SGA) proposed smooth motion In order verify effect SGA this tests mechanism four different web browsing, text editing, slide presentation, playback. The dramatically reduces workload handling recording. addition reduce workload, also guarantee (smooth presentation full screen). Experimental results show that CPU utilization, by more than 50%.