Camera Streaming (iOS)

Guide for implementing camera streaming and photo capture with the DAT SDK.

For PCM audio delivered with this stream, use the audio-streaming skill.

Key concepts

• DeviceSession: The connection to the glasses. Create and start it first; it can stay connected with no camera attached.
• Camera: The capability you attach to a started DeviceSession with addCamera(config:). It owns the Stream.
• Stream: camera.stream — start/stop streaming, capture photos, observe frames, state, and errors.
• VideoFrame: Individual video frames. Use .makeUIImage() to render, or .sampleBuffer when you need the raw CMSampleBuffer (for example to write compressed frames to a file).
• StreamConfiguration: Configure video codec, resolution, and frame rate.
• PhotoData: Still image captured from glasses (.data plus .format).

Treat "start a session" and "start the preview" as two separate user-visible steps, as the CameraAccess sample does. That keeps the session reusable when the user stops and restarts the preview.

Creating a DeviceSession