Video frame transport
AssigneeATI Technologies ULC
InventorWing-Chi Chow
Life of this patent
Estimating the term…
Abstract
In response to a video aspect ratio of a frame of video not matching an aspect ratio of a display panel of a display device, a source device of a processing system transmits only the frame to the display device and metadata indicating that the display device is to generate bars for letterboxing or pillarboxing. By generating the bars for letterboxing or pillarboxing at the display device instead of transmitting the bars from the source device to the display device or storing the bars at a frame buffer of the display device, the processing system conserves power and bandwidth.
Claims20
A method comprising:
- in response to an aspect ratio of a video frame not matching an aspect ratio of a display panel of a display device, transmitting the video frame from a source device to the display device with metadata indicating that the display device is to generate bars for at least one of letterboxing and pillarboxing for the video frame.
A device, comprising:
- a source device configured to:
- transmit a video frame to a display device;
- and
- transmit metadata indicating that the display device is to generate at least one of letterboxing and pillarboxing for the video frame in response to an aspect ratio of the video frame not matching an aspect ratio of a display panel of the display device.
A method comprising:
- receiving, at a display device, a video frame from a source device with metadata indicating that the display device is to generate bars for at least one of letterboxing and pillarboxing for the video frame in response to an aspect ratio of the video frame not matching an aspect ratio of a display panel of the display device.
Dependencies are inferred from the claim text.