Top "Core-video" questions

Core Video is a pipeline model for digital video in MacOS X 10.

How to get Bytes from CMSampleBufferRef , To Send Over Network

Am Captuing video using AVFoundation frame work .With the help of Apple Documentation http://developer.apple.com/library/ios/#documentation/…

ios video-capture avfoundation video-processing core-video
Knowing resolution of AVCaptureSession's session presets

I'm accessing the camera in iOS and using session presets as so: captureSession.sessionPreset = AVCaptureSessionPresetMedium; Pretty standard stuff. However, I'd …

ios avfoundation core-video
Reading video frame-by-frame under iOS

I'm looking for a way to retrieve the individual frames of a video using iOS API. I tried using AVAssetImageGenerator …

ios video frame avfoundation core-video
How to choose the a pixel format type (kCVPixelBufferPixelFormatTypeKey) for use with AVAssetReader?

We are using AVAssetReader and AVAssetWriter somewhat in the style as noted in Video Encoding using AVAssetWriter - CRASHES basically …

ios avassetwriter core-video avassetreader
Create CVPixelBufferRef from CIImage for Writing to File

I'm writing a custom Movie Recording app and have implemented AVAssetWriter and AVAssetWriterInputPixelBufferAdaptor for writing frames to a file. In …

objective-c ios core-image avassetwriter core-video
AVAssetWriterInputPixelBufferAdaptor returns null pixel buffer pool

I'm sure something's wrong with my buffer attributes, but it's not clear to me what -- it's not well documented …

ios core-foundation avassetwriter core-video
How do I convert a CGImage to CMSampleBufferRef?

I’d like to convert a CGImage to CMSampleBufferRef and append it to a AVAssetWriterInput using the appendSampleBuffer: method. I’…

ios avfoundation core-video core-media
What is a CVPixelBuffer in iOS?

According to Apple docs, it's an image stored in main memory, but how are those images used to make a …

ios core-video cvpixelbuffer