Encoder and associated encoding method

By employing multi-core circuitry in the encoder to process superblocks in parallel and update the CDF table, the problem of bit rate control in low-latency applications of the encoder is solved, achieving efficient encoding process and bit rate control, and improving the overall performance of the encoder.

CN122420531APending Publication Date: 2026-07-17REALTEK SEMICON CORP

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
REALTEK SEMICON CORP
Filing Date
2025-03-13
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, encoders struggle to effectively control fixed or variable bit rates in low-latency applications. In particular, the use and updating of the CDF table presents problems in multi-core parallel processing, and the latency between the quantization parameter determination module and the CABAC encoding module leads to low encoding efficiency.

Method used

Multiple core circuits are used to process multiple superblocks in parallel. By updating the CDF table during the encoding process of each superblock and using the encoding result of the previous superblock as a reference, the update delay problem of the CDF table is solved. At the same time, preset information is used as a temporary reference for quantization parameters to ensure the smooth progress of the encoding process.

Benefits of technology

It enables effective bitrate control in low-latency applications, improves encoding efficiency and accelerates the process, reduces the impact of bitrate control, and enhances the overall performance of the encoder.

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Abstract

本发明公开了编码器及相关的编码方法。一种编码器,其包含有M个核心电路。该M个核心电路用来对一影像图框的第一行超级区块至第M行超级区块进行编码,并在每一个超级区块进行编码的过程中相应地更新一CDF表,其中M为大于1的正整数;以及该M个核心电路分别对该影像图框的第(M+1)行超级区块至第(2*M)行超级区块进行编码,并在每一个超级区块进行编码的过程中相应地更新该CDF表,其中该M个核心电路的第一个核心电路使用该第一行超级区块的最后一个超级区块在编码过程中所产生的该CDF表,以对该第(M+1)行超级区块的第一个超级区块进行编码。
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