Comments (6)
Will consider the "render to YUV" feature.
from metalpetal.
Output to CVPixelBuffer at the end of the chain, would be great. So we can use that output for other stuff like making videos or publishing to a live stream or something else.
from metalpetal.
MTIContext object supports rendering a MTIImage to a CVPixelBuffer. However it can only render to a BGRA pixel buffer for now.
from metalpetal.
i see CoreImage support render to yuv CVPixelBuffer. but it cost too much cpu. more than 100% cpu will be used.
[ciContext render:outimage toCVPixelBuffer:outPixelBuffer];
is there any way to reduce the cpu use?
from metalpetal.
it seems it is because of https://github.com/YuAo/YUCIHighPassSkinSmoothing, move the discussion to YuAo/YUCIHighPassSkinSmoothing#11
from metalpetal.
@omarojo @notedit Render to YUV pixel buffer is implemented on supported hardware (MTLFeatureSet_iOS_GPUFamily3_v1). ref: 2226c0f
Not fully tested, use with caution.
Here's an example:
NSError *error;
CVPixelBufferRef pixelBuffer;
CVPixelBufferCreate(kCFAllocatorDefault, outputImage.size.width, outputImage.size.height, kCVPixelFormatType_420YpCbCr8BiPlanarFullRange, (__bridge CFDictionaryRef)(@{(id)kCVPixelBufferIOSurfacePropertiesKey: @{}}), &pixelBuffer);
[context renderImage:outputImage toCVPixelBuffer:pixelBuffer error:&error];
//use the pixelBuffer
//....
//release the pixelBuffer
CVPixelBufferRelease(pixelBuffer);
from metalpetal.
Related Issues (20)
- View to display video while editing
- iOS 16 Error: use of undeclared identifier 'metalpetal' HOT 2
- Video overlay on a video using MTIBlendMode.screen
- Disregard
- This library format is not supported on this platform (or was built with an old version of the tools) HOT 3
- MetalPetal on macOS Sonoma
- General shader slow rendering
- How to fix 'MTIShaderLib.h' file not found in package? HOT 5
- MTIImageView always displays images using scaleAspectFit HOT 1
- Extend MTIImageView.init with context parameter
- Value of type 'MTIRenderPipelineKernel' has no member 'apply' HOT 1
- Memory consumption too high while applying asset transform on sourceImage
- Unable to read custom metal shader files
- Rendering image to drawable: no texture found on color attachment 0. This could happen when the drawable size is less than 16x16 p HOT 1
- Hey guys, HOT 1
- export gif file as overlay with MTIVideoComposition
- enablesRenderGraphOptimization option hangs
- Adding a 3D LUT (.cube file) to a MTLTexture?
- Importing video problems HOT 2
- Memory optimisation HOT 2
Recommend Projects
-
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
-
Vue.js
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
-
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
-
TensorFlow
An Open Source Machine Learning Framework for Everyone
-
Django
The Web framework for perfectionists with deadlines.
-
Laravel
A PHP framework for web artisans
-
D3
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
-
Recommend Topics
-
javascript
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
-
web
Some thing interesting about web. New door for the world.
-
server
A server is a program made to process requests and deliver data to clients.
-
Machine learning
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
-
Visualization
Some thing interesting about visualization, use data art
-
Game
Some thing interesting about game, make everyone happy.
Recommend Org
-
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
-
Microsoft
Open source projects and samples from Microsoft.
-
Google
Google ❤️ Open Source for everyone.
-
Alibaba
Alibaba Open Source for everyone
-
D3
Data-Driven Documents codes.
-
Tencent
China tencent open source team.
from metalpetal.