Let's start with the changes that make Core Video possible. QuickTime 7 is a long-overdue modernization of the oldest continuously compatible digital media system in the industry. That's largely thanks to some significant changes made to the source of most frames of video in Mac OS X: QuickTime. While this is possible even in earlier versions of Mac OS X, as evidenced by the impressive OpenGL movie player application created by Ars forum member "feelgood," it is much, much easier to do in Tiger using Core Video. Not only must Core Video finish processing each frame of video before the next frame needs to be displayed, it must get the frame in a timely manner in the first place to even have a fighting chance. ![]() Applying them to video, a series of still images produced on the fly by an entirely separate part of the system, is something else entirely. Core Video leverages the GPU via OpenGL, just like Core Image and Quartz Extreme and Quartz 2D Extreme.noticing a trend here?Īpplying a series of filters to a still image is one thing. Since Core Video is useless if it does not execute in real time, it requires a programmable GPU. If you've ever wanted to apply blurs, filters, edge detection, and distortions to live video-and have all of the effects editable in real time-Core Video is the technology for you. If anything, it highlights the real-time performance of the technology behind Core Image. ![]() It's essentially the application of Core Image filters to video instead of still images. ![]() They look good enough to eat.Ĭore Video is a bit of a "secondary" technology, or perhaps a "branding-only" technology. Making logos for abstract technologies like Core Image, Audio, and Video is not easy. I included these icons (and at such a large size) because I think they look cool.
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