Using AV Foundation to capture photos with image processing.

AVCamPhotoFilter demonstrates how to use AV Foundation's capture API to draw a live camera preview and capture photos with image processing (filtering) applied.

Two "rosy" filters are provided: one is implemented using Core Image, and the other is implemented as a Metal shader. A horizontal swipe on the camera preview switches between the filters.

On devices that support depth map delivery, AVCamPhotoFilter provides depth data visualization (via a Metal shader). When depth visualization is enabled, a slider enables crossfading between video and depth visualization.

AVCamPhotoFilter also shows how to properly propagate sample buffer attachments and attributes, including EXIF metadata and color space information (e.g. wide gamut).

Xcode 9.0 or later; iOS 11.0 SDK or later.

• Note: AVCamPhotoFilter can only be built for an actual iOS device, not for the simulator.

iOS 11.0 or later

• Note: AVCamPhotoFilter can only be run on an actual iOS device, not on the simulator.