Hi Hamza,
I can see that you are facing issue with the 'videoinput' using 'Image Acquisition Toolbox' in MATLAB. For recording a video using the 'Image Acquisition Toolbox' for releases after R2014a you will have to install support packages via MATLAB® Add-Ons.
You can refer to the following link for installing the Support Packages for Image Acquisition Toolbox Adaptors.
I hope this link will help in resloving the issue!