Method for performing video display control within a video display system, and associated video processing circuit and video display system

A video processing circuit, the video processing circuit being positioned within a video display system, the video processing circuit comprising:

• a controller arranged to control operations of the video processing circuit;
• a demultiplexer arranged to demultiplex a three-dimensional (3D) video stream into a left video stream and a right video stream;
• two video decoders arranged to respectively decode the left video stream and the right video stream to generate a plurality of 3D frames;
• and
• a buffering module arranged to temporarily store the 3D frames, the buffering module comprising a plurality of buffers, wherein under control of the controller, the buffering module dynamically utilizes two of the plurality of buffers as on-screen buffers for at least a portion of the 3D frames, and under control of the controller, during utilizing any of the two of the plurality of buffers as an on-screen buffer, the buffering module dynamically utilizes at least one other buffer of the plurality of buffers as at least one off-screen buffer for at least one 3D frame;
• wherein the two of the buffers utilized as two on-screen buffer respectively storing a first left 3D frame to be displayed for a left eye of a user and a first right 3D frame to be displayed for a right eye of the user;
• and
• wherein the at least one other buffer utilized as one off-screen buffer alternately stores a second left 3D frame to be displayed for the left eye of the user and a second right 3D frame to be displayed for the right eye of the user.

A video display system, comprising:

• a video processing circuit, comprising:
• a controller arranged to control operations of the video processing circuit;
• a demultiplexer arranged to demultiplex a three-dimensional (3D) video stream into a left video stream and a right video stream;
• two video decoders arranged to respectively decode the left video stream and the right video stream to generate a plurality of 3D frames;
• and
• a buffering module arranged to temporarily store the 3D frames, the buffering module comprising a plurality of buffers, wherein under control of the controller, the buffering module dynamically utilizes two of the plurality of buffers as on-screen buffers for at least a portion of the 3D frames, and under control of the controller, during utilizing any of the two of the plurality of buffers as an on-screen buffer, the buffering module dynamically utilizes at least one other buffer of the plurality of buffers as at least one off-screen buffer for at least one 3D frame;
• wherein the two of the buffers utilized as two on-screen buffer respectively storing a first left 3D frame to be displayed for a left eye of a user and a first right 3D frame to be displayed for a right eye of the user;
• and
• wherein the at least one other buffer utilized as one off-screen buffer alternately stores a second left 3D frame to be displayed for the left eye of the user and a second right 3D frame to be displayed for the right eye of the user.