jiang6777 / Metal_Learn

This project realizes the rendering of real-time video stream through Metal, and the rendered video stream supports NV12, NV21, RGB, BGR and other video formats.

Metal_Learn

This project realizes the rendering of real-time video stream through Metal, and the rendered video stream supports NV12, NV21, RGB, BGR and other video formats，Although the Metal rendering of this project only shows the rendering of the camera on the Mac platform, the iOS platform is also supported.

Ideas

In order to be compatible with many video frame formats, in CVTI420Buffer, I will convert YUV420, RGB and other data formats to I420 through the newI420Frame and toI420 methods, and then render the Y, U, V planes in Metal. This example is rendered by collecting data from a Mac computer camera.

Usage

The specific usage of tmalview is as follows:

if ([CVTMetalView isMetalAvailable]) {

     CGFloat height = self. view. frame. size. width * 9 / 16.0;

     self. metalView = [[CVTMetalView alloc] initWithFrame:NSMakeRect(0, 0, self.view.frame.size.width, height)];

     self. metalView. delegate = self;

     self. metalView. wantsLayer = YES;

     self. metalView. layer. backgroundColor = [NSColor blackColor]. CGColor;

     [self.view addSubview:self.metalView];

 }

Achievement display

End

If you find any problems during use, please send me an email message [e-mail], it is not easy to create, if you think it can help you, I hope you can appreciate it, thank you