Webcam Recording with Motion Detection

I'm looking for a professional who can develop a Visual Basic 2015 code to record webcam footage along with voice, but only while motion is detected. Once the motion stops, the recording should end and be saved in MP4 format.

Key Requirements:
- Development in Visual Basic 2015
- Motion detection feature to start and stop the recording
- Save recorded footage in MP4 format

Optional, but a plus:
- Ability to select location for saved recordings

Note you can get the code in ChatGTP.