cameraservice api

The CameraService API is a set of tools and functions that allow developers to interact with the camera hardware on Android devices. It provides a way to access and control the camera's settings, capture and record images and videos, and manage camera sessions. The API is part of the Android Camera2 framework, which offers more advanced features and performance compared to the older Camera API. Some common tasks that can be accomplished using the CameraService API include:

- Opening and closing the camera
- Setting camera parameters such as focus, exposure, and white balance
- Capturing images and videos with different resolutions, formats, and modes
- Previewing camera output on the screen or in a SurfaceView
- Adding image and video processing effects with filters and shaders
- Managing multiple camera devices and streams
- Handling camera events such as errors, state changes, and callbacks

To use the CameraService API, developers need to obtain a CameraManager instance, which is responsible for discovering and connecting to available camera devices. They can then create a CameraDevice object for a specific camera and configure its CaptureRequest with various settings and targets. When ready, they can start a CaptureSession to capture images or record videos, and handle the results with a CaptureCallback. The API also supports advanced features such as RAW image capture, burst mode, and manual camera controls for professional photography applications.