Vehicle video display system

A method of controlling a vehicle display system, comprising:

• receiving, at an image processing module, video signals captured by a video camera, and generating first video data in a first format based on the video signals;
• forwarding, by a PCI express switch, the first video data received at the image processing module to a memory controller, and storing the first video data in a first area of a memory;
• executing, at a processor, a system management mode (SMM) program;
• reading, at the processor executing the SMM program, the first video data from the first area of the memory;
• converting, at the processor executing the SMM program, the first video data to second video data in a second format;
• writing, at the processor executing the SMM program, the second video data in a second area of the memory;
• retrieving, by the memory controller, the second video data in the second format from the second area of the memory;
• and
• forwarding, by the PCI express switch, the second video data retrieved by the memory controller to a graphic controller.

A non-transitory computer readable medium storing computer executable codes, wherein the codes, when executed at a processor of a vehicle display system, are configured to

• instruct an image processing module to receive video signals captured by a video camera, and to generate first video data in a first format based on the video signals;
• instruct a PCI express switch to forward the first video data received at the image processing module to a memory controller, and store the first video data in a first area of a memory;
• execute a system management mode (SMM) program;
• read, at the processor executing the SMM program, the first video data from the first area of the memory;
• convert, at the processor executing the SMM program, the first video data to second video data in a second format;
• write, at the processor executing the SMM program, the second video data in a second area of the memory;
• instruct the memory controller to retrieve the second video data in the second format from the second area of the memory;
• and
• instruct the PCI express switch to forward the second video data retrieved by the memory controller to a graphic controller.