Patent ID: 11956452
Assignee: ROCKCHIP ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 11:
12. An encoding method performed by a H.265 encoding device, the H.265 encoding device includes a preprocessing module, a coarse selection module, and an accurate comparison module, the method comprises:
dividing, by the preprocessing module, a current frame from an original video into multiple CTU blocks;
dividing, by the coarse selection module, a CTU block selected from the multiple CTU blocks based on multiple partition modes, each one of the partition modes dividing the CTU block into corresponding CU blocks, and dividing each one of the CU blocks into a corresponding one or more PU blocks;
performing, by the coarse selection module, inter-prediction and intra-prediction in each one of the partition modes for each one of the CTU blocks, and generating a prediction information corresponding to each one of the partition modes;
comparing, by the precise comparison module, costs of the prediction information corresponding to each one of the partition modes for each one of the CTU blocks; and
selecting, by the precise comparison module, a partition mode with the lowest cost for each one of the CTU blocks and the encoding information corresponding to the partition mode, and generating entropy coding information and reconstruction information according to the selected partition mode and its corresponding encoding information, wherein the entropy coding information is used for generating the current frame into an H.265 code stream, and the reconstruction information is used for generating the current frame into a reconstructed frame.