I am using Xcode 6.1 with iOS SDK 8.1.
I added the static library as described on Github readme and added this code.
GPUImageStillCamera *rearCamera = [[GPUImageStillCamera alloc] init];
rearCamera.outputImageOrientation = UIInterfaceOrientationPortrait;
GPUImageBrightnessFilter *filter = [[GPUImageBrightnessFilter alloc] init];
[rearCamera addTarget:filter];
[filter addTarget:_viewRoot];
_viewRearCamera.hidden=YES;
_viewFrontCamera.hidden=YES;
_viewAdMobBG.hidden=YES;
[rearCamera startCameraCapture];
_viewRoot
is a GPUImageView instance in Storyboard which is connected to VC as @property (strong, nonatomic) IBOutlet GPUImageView *viewRoot;
All I get is white screen and the camera won't load. I am using latest GPUImage code from Github.