LTVideoRecorder

This project demonstrates how to use CoreImage to add filter, drawing, and text to a video.

The flow is:

• for every frame, get CVPixelBuffer from a AVCaptureSession, convert it to a CIImage instance
• add filter to the CIImage
• add drawing and text layer to the CIImage
• render the CIImage to the screen
• write the CIImage to the file

<img src="https://raw.githubusercontent.com/ltebean/LTVideoRecorder/master/pics/1.jpg" width="180"> <img src="https://raw.githubusercontent.com/ltebean/LTVideoRecorder/master/pics/2.jpg" width="180"> <img src="https://raw.githubusercontent.com/ltebean/LTVideoRecorder/master/pics/3.jpg" width="180">