Ubuntu Startup script

Job ID: 34458389

Budget: $10 – $30 USD

I want to run a program when unbuntu pc starts.
Following works are needed.

1. When I turn on pc, one image file is on screen.
2. Run the program : mplayer tv:// -tv driver-v4l2:device=/dev/video0: -vf
3. After the program stops, the pc turns off.

I have tried this as per the instructions in websites but I have failed.
I need the detailed instructions step by step.
You can provide a video clip for the instruction as the solution.
Related categories: Linux Software Architecture Shell Script Ubuntu