Signal processing device and display apparatus for vehicle including the same

A signal processing device comprising a processor configured to perform signal processing for a plurality of displays mounted in a vehicle, wherein:

• the processor is configured to execute a server virtual machine and a plurality of guest virtual machines on a hypervisor within the processor,
• a first guest virtual machine and a second guest virtual machine among the plurality of guest virtual machines operate for a first display and a second display, respectively,
• the server virtual machine is configured to encode processed video data and store the encoded video data in a shared memory,
• the first guest virtual machine is configured to receive the encoded video data stored in the shared memory and transmit a decoding request to the server virtual machine,
• the server virtual machine is configured to decode the encoded video data based on the decoding request and store the decoded video data in the shared memory,
• the first guest virtual machine is configured to receive the decoded video data stored in the shared memory and, in an extended-display mode of the plurality of displays, display a first area image corresponding to a first portion of the decoded video data on the first display among the plurality of displays,
• the second guest virtual machine is configured to receive the decoded video data stored in the shared memory and, in the extended-display mode, display a second area image corresponding to a second portion of the decoded video data on the second display, and
• the decoding of the encoded video data is performed once through the server virtual machine.

A display apparatus for a vehicle, the display apparatus comprising:

• a plurality of displays;
• and
• a signal processing device comprising a processor configured to perform signal processing for the plurality of displays, wherein:
• the processor is configured to execute a server virtual machine and a plurality of guest virtual machines on a hypervisor within the processor,
• a first guest virtual machine and a second guest virtual machine among the plurality of guest virtual machines operate for a first display and a second display, respectively,
• the server virtual machine is configured to encode processed video data and store the encoded video data in a shared memory,
• the first guest virtual machine is configured to receive and decode the encoded video data stored in the shared memory, store decoded video data in the shared memory, and, in an extended-display mode of the plurality of displays, display a first area image corresponding to a first portion of the decoded video data on the first display among the plurality of displays,
• the second guest virtual machine is configured to receive the decoded video data stored in the shared memory and, in the extended-display mode, display a second area image corresponding to a second portion of the decoded video data on the second display among the plurality of displays, and
• the decoding of the encoded video data is performed once through the first guest virtual machine.