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Decoding abnormality detection method and device based on reduced instruction set computer structure

A technology of computer structure and simplified instruction set, applied in the field of decoding anomaly detection, can solve problems such as reducing the efficiency of video decoding

Active Publication Date: 2016-10-12
GLENFLY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the software detection of decoding exceptions needs to add a large number of jump instructions in the shader, which will greatly reduce the efficiency of video decoding

Method used

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  • Decoding abnormality detection method and device based on reduced instruction set computer structure
  • Decoding abnormality detection method and device based on reduced instruction set computer structure
  • Decoding abnormality detection method and device based on reduced instruction set computer structure

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Embodiment Construction

[0012] The following description is a preferred implementation mode of the invention, and its purpose is to describe the basic spirit of the invention, but not to limit the invention. For the actual content of the invention, reference must be made to the scope of the claims that follow.

[0013] It must be understood that words such as "comprising" and "including" used in this specification are used to indicate the existence of specific technical features, values, method steps, operations, components and / or components, but do not exclude the possibility of adding More technical characteristics, values, method steps, job processing, components, components, or any combination of the above.

[0014] Words such as "first", "second", and "third" used in the claims are used to modify the components in the claims, and are not used to indicate that there is an order of priority, an antecedent relationship, or a component Prior to another component, or the chronological order in which...

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Abstract

The embodiment of the invention provides a decoding abnormality detection device based on a reduced instruction set computer structure. The device at least comprises an abnormality register, an execution level and a counting unit. The execution level is coupled to the abnormality register and is used for executing code stream error detection in each clock cycle, setting a value in the abnormality register as logic ''1'' once finding that the code stream has an error and that the error cannot be corrected, indicating an unrecoverable code stream error and ignoring the current instruction to not execute the code stream error detection. The counting unit is coupled between the abnormality register and the execution level, comprises a counter and is used for checking whether the value in the abnormality register is logic ''1'' in each clock cycle, and setting the counter as an instruction number needing to be ignored by the execution level if the value in the abnormality register is logic ''1''.

Description

technical field [0001] The invention relates to a decoding anomaly detection technology, in particular to a decoding anomaly detection method based on a reduced instruction set computer structure and a device using the method. Background technique [0002] Due to network transmission errors and other reasons, the video decoding chip needs to process incorrect code streams to detect various possible error situations and to end the erroneous decoding unit in time so that the video can be played normally. These decoding exceptions can appear in various parts of the code stream, for example, sequence header syntax (sequence header syntax), frame header syntax (frame header syntax), slice header syntax (slice header syntax), macroblock header syntax (Macroblock header syntax) or various The residual value of the macroblock, etc. [0003] In a video decoding chip based on a Reduced Instruction Set Computer (RISC, Reduced Instruction Set Computer) structure, this decoding anomaly ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/30G06F11/07
CPCG06F9/30098G06F11/0706
Inventor 邵瑾吴永海
Owner GLENFLY TECH CO LTD