Method and device for storing video reference frame data
A data storage and reference frame technology, applied in the field of video processing, can solve the problem of many commands and achieve the effect of saving bandwidth
Active Publication Date: 2016-10-05
ACTIONS ZHUHAI TECH CO
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[0006] Embodiments of the present invention provide a method and device for storing video reference frame data to solve the problem in the prior art that luminance and chrominance data are stored separately in the data buffer and external memory of the video decoder, and video decoding The problem that the data buffer in the device sends a large number of commands to the external memory
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[0042] The method for storing video reference frame data in the embodiment of the present invention determines the luminance data and chrominance data that need to be bound and stored in the same position in the reference frame data; stores the luminance data and chrominance data that need to be bound and stored in the determined same position In the same sub-macro block in the memory, there are multiple macro blocks in the memory, and each macro block is composed of multiple sub-macro blocks. Each sub-macro block in the same macro block stores different positions in the same video reference frame data. Luminance data and chrominance data. Since the luminance data and chrominance data are bound and stored in the same sub-macro block of the memory in the embodiment of the present invention, both the luminance and chrominance data can be bound and stored in the data buffer of the decoder and the external memory. This reduces the number of commands sent from the data buffer in the...
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The present invention relates to the field of video processing, and more particularly relates to a method and a device for storing video reference frame data. According to the embodiments of the invention, the method comprises the steps of determining luminance data and chrominance data out of reference frame data, wherein the luminance data and the chrominance data are to be stored in the bound manner at the same location; storing the luminance data and the chrominance data, determined to be stored in the bound manner at the same location, in the same sub-macro-block of a memory, wherein the memory comprises a plurality of macro-blocks and each sub-macro-block in the same macro-block is respectively used for storing the luminance data and the chrominance data out of the data of the same video reference frame at different locations. According to the technical scheme of the invention, the luminance data and the chrominance data are stored in the same sub-macro-block of the memory. In this way, the luminance data and the chrominance data can be stored in the bound manner in a data buffer and an external memory of a video decoder. Therefore, the number of commands sent from the data buffer to the external memory of the video decoder is reduced.
Description
Technical field [0001] The present invention relates to the field of video processing, in particular to a method and device for storing video reference frame data. Background technique [0002] In recent years, the application of video coding and decoding has developed rapidly, and the resolution and bit rate of video have been greatly improved. HEVC (High Efficiency Video Coding, video compression standard) is a joint group established by the two organizations under research. A new generation of video compression coding schemes, mainly for high-definition and ultra-high-definition video images, HEVC aims to double the compression efficiency of high-resolution / high-fidelity video images on the basis of H.264 / AVC high profile, that is Under the premise of ensuring the same video image quality, the bit rate of the video stream is reduced by 50%. [0003] The codec architecture of HEVC uses the traditional hybrid video coding architecture, that is, predictive and entropy coding. Pre...
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IPC IPC(8): H04N5/76H04N5/91
Inventor 旷开智
Owner ACTIONS ZHUHAI TECH CO