This article mainly introduces the process of opening the camera of AIS camera.
The previous article introduced the startup of the ais_v4l2_proxy service, which is used to traverse the configuration in ais_v4l2loopback_config.xml
For all camera devices, for the Android side application, the APP calls the standard Camera API to open the camera, and the subsequent process
Camera Service reaches the bottom layer, and Qualcomm named it v4l2_camera_hal. Of course, other OEMs can
According to the needs of the project, rewrite your own HAL, but it is basically the inheritance and extension of v4l2_camera_hal.
The corresponding relationship has been resolved in ais_v4l2_proxy, and the input_id corresponds to the camera device on the QNX side
intput_id = "0" node= "/dev/video51"
intput_id = "1" node= "/dev/video52"