I need someone proficient with C/Linux to implement a virtual camera solution

I am looking for a freelancer who is proficient in C/Linux to implement a virtual camera solution. The project requires the following features:
- Real-time video streaming and storing
- Changing Webcam source

Ideal skills and experience for this job:
- Proficiency in C/Linux programming
- Experience with real-time video streaming
- Knowledge of customizable filters and effects
- Familiarity with integrating software systems
- Understanding of scalability considerations