Method and apparatus for capturing full-screen frames
AssigneeASUSTeK COMPUTER INC.
InventorsKao-Yi Chiu, Yu-Hsuan Lai
Life of this patent
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Abstract
An apparatus for capturing full-screen frames, which are displayed by a display unit having a first display buffer and a second display buffer, in real time. The display unit selects one of the first and second display buffers as a front buffer for displaying the full-screen frames. The apparatus includes a capture unit, and a display driver unit for driving the display unit. When data in the front buffer is updated, the display driver unit generates image data and saves the image data in a temporary buffer. Then, the display driver unit copies the image data to a share buffer. The capture unit reads the image data from the share buffer and generates a video bitstream accordingly.
Claims20
An apparatus for capturing full-screen frames displayed by a display unit and the display unit having a first display buffer and a second display buffer and one of those display buffers being selected as a front buffer for displaying the full-screen frames, the apparatus comprising:
- a display driver unit for driving the display unit, generating an image data and saving the image data to a temporary buffer when the data in the front buffer being updated, and copying the image data from the temporary buffer to a share buffer;
- and
- a capture unit for reading the image data from the share buffer and generating a video bitstream according to the image data.
A method of capturing full-screen frames displayed by a display unit, the display unit having a first display buffer and a second display buffer and one of those display buffers being selected as a front buffer for displaying the full-screen frames, the method comprising the steps of:
- generating an image data and saving the image data to a temporary buffer when the data in the front buffer being updated;
- copying the image data in the temporary buffer to a share buffer;
- and
- reading the image data from the share buffer and generating a video bitstream according to the image data.
Dependencies are inferred from the claim text.