I am currently working on a web application that requires the ability to control the camera’s focus and zoom directly from the browser. The application is designed to be used on iPhones, and I am looking for a solution that works specifically on iOS devices.

Here are the specific requirements and constraints:

Platform: The solution must work on iPhones running the latest version of iOS.
Browser: It should be compatible with Safari, as it is the default browser on iOS.
Functionality: The API or method must allow us to:
Control the camera’s focus manually.
Adjust the zoom level programmatically.
I have explored the standard getUserMedia API, but it seems to lack direct control over focus and zoom functionalities. I’ve also looked into various JavaScript libraries, but haven’t found one that meets these specific needs.

Has anyone successfully implemented camera focus and zoom control on an iPhone using HTML5, JavaScript, or any other web technologies? If so, could you please share the approach or any resources that might help?

Thank you for your assistance!