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A video decoder and video decoding technology, applied in digital video signal modification, electrical components, image communication, etc., can solve the problems of large chip area and power consumption, long development cycle, etc., and achieve the effect of reducing module development
Active Publication Date: 2017-07-14
浙江杭海新城控股集团有限公司
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It can solve the shortcomings of long development cycle and large chip area and power consumption of multi-protocol video decoders in the prior art
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[0056] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0057] see figure 1 , is a video decoding method according to an embodiment of the present invention. In this embodiment, the method includes:
[0058] S101. Transform the transformation unit and the prediction unit obtained after decoding the compressed video stream into an M×M residual block and an M×M prediction block, where M=16, 8 or 4.
[0059] Specifically, on the video encoder side, when the video encoder performs HEVC protocol, VP9 protocol or AVS2.0 prot...
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Abstract
The embodiment of the present invention discloses a video decoding method, including: transforming the transformation unit and the prediction unit obtained after decoding the video compression code stream into an M×M residual block and an M×M prediction block, respectively, wherein , M=16, 8 or 4, the video compression code stream includes any one of the HEVC code stream, VP9 code stream and AVS2.0 code stream; the reconstructed image block is obtained according to the residual block and the prediction block ; Filter the reconstructed image block to obtain a decoded reconstructed image. The embodiment of the invention also discloses a video decoder. By adopting the invention, the module development of the multi-protocol video decoder is reduced, and the area and power consumption of the video decoder are reduced.
Description
technical field [0001] The invention relates to the field of image processing, in particular to a video decoding method and a video decoder. Background technique [0002] Video compression technology is widely used in Internet, TV broadcasting, storage media and communication and other fields. Since the MPEG (Motion Pictures Experts Group) standard was established in 1993, after years of inheritance and development, a large number of video compression formats coexist. So far, a commercial video decoder needs to support at least a dozen video compression formats, such as MPEG-1, MPEG-2, MPEG-4, H.263, H.264, H.265, Real8, Real9, VC1 , AVSP2, VP8, VP9 and DIVX etc. This has brought serious challenges to the video decoder, especially the rise of smart devices, which has put forward strict requirements on the area and power consumption of the hardware video decoder. [0003] Protocols before 2013, such as (MPEG-1, MPEG-2, MPEG-4, H.263, H.264, Real8, Real9, VC1, AVSP2, VP8, V...
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