Transfer coder adaptive to high efficiency video coding (HEVC) standard

Abstract

The invention discloses a transfer coder adaptive to a high efficiency video coding (HEVC) standard and mainly solves the problems in the prior art that transfer blocks are different in sizes and too many multipliers are used. The transfer coder adaptive to the HEVC standard comprises a one-dimensional discrete cosine transformation/ discrete sine transformation (DCT/DST) module (1), a transposing bugger module (2) and a top layer control unit (3). The one-dimensional DCT/DST module (1) is provided with a unified HEVC transfer coding framework and is combined with a butterfly-shaped structure and a matrix multiplication array to achieve resource selection sharing. The transposing bugger module (2) uses path delay between registers and different storing and reading sequences of storages to finish transposing operation of data efficiently, simply and conveniently. The top layer control unit generates rest signals and enable signals of the one-dimensional DCT/DST module and the transposing bugger module, controls the one-dimensional DCT/DST module to perform one-dimensional row transfer for input data and controls the transposing bugger module to transpose the transfer results and output the transfer results to the one-dimensional DCT/DST module so as to finish one-dimensional rank transfer. The transfer coder has the advantages of being simple and ordered in structure, high in reuse degree and capable of achieving integrated circuits, and can achieve high-throughput transfer coding.

Description

technical field [0001] The invention belongs to the technical field of electronic circuits, in particular to a transformation coder structure in HEVC standard video coding, which can be applied to very large scale integrated circuits (VLSI). Background technique [0002] As we all know, video images are a major source for human beings to obtain information about the external world. With the rapid development of video image acquisition equipment, communication networks, and multimedia technologies, high-resolution / high-definition video images have played an increasingly important role in national security, national economy, scientific research, and people's lives. However, after digitization of these video and image information with rich content, the amount of data is very huge. It has brought great difficulties to the transmission and storage of high-resolution / high-definition video images. Especially in the case of limited data transmission bandwidth, the problem of high ...

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Problems solved by technology

[0005] The purpose of the present invention is to address the difficulties and deficiencies in the above-mentioned background technology, and propose a transform encoder suitable for the HEVC standard, so as to complete the conversion of 4×4DCT, 4×4DST, 8×8DCT, 16× 5 types of transformations of 16DCT and 32×32DCT

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