Patent ID: 11889057
Assignee: NOVATEK MICROELECTRONICS CORP.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method for a video encoder, comprising:
receiving a series of input frames;
performing at least one of intra-prediction and inter-prediction on the series of input frames for generating at least one of an intra frame (I-frame), a predictive frame (P-frame), and a key predictive frame (key P-frame);
generating an encoded bitstream with respect to a first input frame determined as the I-frame among the series of input frames, and storing the encoded bitstream in a bitstream buffer of the video encoder;
decoding the encoded bitstream stored in the bitstream buffer to generate a first reference frame, and storing the first reference frame in a frame buffer of the video encoder; and
performing inter-prediction on a second input frame determined as a key P-frame among the series of input frames according to the first reference frame obtained from the frame buffer;
wherein the step of generating the encoded bitstream with respect to the first input frame determined as the I-frame among the series of input frames comprises:
performing intra-prediction on the first input frame determined as the I-frame among the series of input frames to generate an intra-predicted frame;
generating a residual frame based on the intra-predicted frame and the first input frame; and
performing entropy coding based on quantized transform coefficients corresponding to the residual frame and associated intra-prediction mode information to generate the encoded bitstream with respect to the first input frame.