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Encoding/decoding method of digital media data and bit stream processing method thereof

A technology of digital media and encoding methods, which is applied in the direction of digital video signal modification, selective content distribution, electrical components, etc., can solve the problems of high memory access rate of main memory, complex memory access behavior of digital media data, etc., and reduce memory access burden, reduce computational burden, and reduce the effect of redundant information

Active Publication Date: 2014-05-07
MEDIATEK INC
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Problems solved by technology

[0007] In order to solve the problems of complex memory access behavior in the encoding and decoding of digital media data and the high memory access rate to the main memory, etc., the present invention provides a method for encoding digital media data, a method for decoding encoded digital media data, and Bit stream processing method of digital media data

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  • Encoding/decoding method of digital media data and bit stream processing method thereof
  • Encoding/decoding method of digital media data and bit stream processing method thereof
  • Encoding/decoding method of digital media data and bit stream processing method thereof

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Embodiment Construction

[0024] Certain terms are used throughout the specification and preceding claims to refer to particular elements. Those of ordinary skill in the art should understand that hardware manufacturers may use different terms to refer to the same component. The description and the preceding claims do not use the difference in name as a way to distinguish components, but use the difference in function of components as a criterion for distinguishing. "Includes" mentioned throughout the specification and the preceding claims is an open-ended term, so it should be interpreted as "including but not limited to". Otherwise, the term "coupled" includes any direct and indirect means of electrical connection. Therefore, if it is described that a first device is coupled to a second device, it means that the first device may be directly electrically connected to the second device, or indirectly electrically connected to the second device through other devices or connection means. In addition, c...

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Abstract

A method for encoding digital media data includes deriving a portion of prediction information and a portion of prediction error information of the digital media data, and encoding the digital media data into a bit stream. The bit stream comprises a first bit stream section and a second bit stream section that respectively carry the portion of prediction information and the portion of prediction error information. In addition, within the bit stream, the portion of prediction information and the portion of prediction error information are not carried in the same macroblock (MB) or the same sub-unit of an MB. A method for decoding encoded digital media data and a method for coding digital media data and a method for processing bit stream of digital media data are also provided.

Description

technical field [0001] The present invention relates to a multi-reference frame architecture (multiple reference frame architecture) for video coding (video coding), in particular to a coding method for digital media data, a decoding method for coded digital media data, and a bit stream of digital media data Approach. Background technique [0002] Considering a multi-reference frame architecture (such as an H.264 compliant device), some problems arise when implementing multi-frame motion compensation, such as complex memory access behavior and high demands on main memory. Memory access rate and other issues, wherein the main memory may be a dynamic random access memory (Dynamic Random Access Memory, DRAM) accessed by the processor of the device. Generally, the processor and the main memory are respectively located in different chips in the device, and due to the aforementioned complex memory access behavior and / or high memory access rate to the main memory, the memory bandw...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/174H04N19/156H04N19/33H04N19/573
CPCH04N21/2389H04N19/00715H04N21/4385H04N19/573
Inventor 李坤傧
Owner MEDIATEK INC
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