add resolution argument

[bonnieking]

No description provided.

[Copilot]

Pull request overview

This PR adds command-line control over camera resolution by introducing an --resolution argument that allows users to specify custom width and height values for the video stream.

Key changes:

• Modified start_stream() to accept configurable width and height parameters with backward-compatible defaults (854x480)
• Added argparse-based command-line argument parsing for resolution specification in WIDTHxHEIGHT format
• Updated the main execution flow to parse and pass resolution values to the streaming function

[Copilot]

The resolution parsing logic doesn't validate that the parsed width and height values are positive integers or within reasonable bounds. Negative values or zero could be passed to start_stream(), which may cause unexpected behavior in the camera command. Consider adding validation such as if width <= 0 or height <= 0: ... after parsing.

[sgbaird]

@copilot, these will need to be variables that's imported from my_secrets.py, similar to other variables and secrets. Since this will be going to YouTube, we might want to restrict it to the following options: 240p, 360p, 480p, 720p. It would also be good to allow people to rotate by 90 degrees (in addition to being able to flip vertically or horizontally) to have a portrait mode stream. However, default should be non-rotated. You can include the allowed options in the comments of my_secrets.py

remove all the CLI code

[Copilot]

@sgbaird I've opened a new pull request, #539, to work on those changes. Once the pull request is ready, I'll request review from you.