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Video decoding method and system

A video decoding and decoding module technology, applied in the field of computer chips, can solve problems such as affecting the normal parsing of frame stream data and IP hanging.

Active Publication Date: 2016-04-06
FUZHOU ROCKCHIP SEMICON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] For this reason, it is necessary to provide a technical solution for video decoding to solve the problem that when an error occurs in a certain frame of video code stream data, it is easy to cause IP hangup and affect the normal analysis of subsequent frame code stream data

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Embodiment Construction

[0035] In order to explain in detail the technical content, structural features, achieved goals and effects of the technical solution, the following will be described in detail in conjunction with specific embodiments and accompanying drawings.

[0036]The system includes a video decoder 102, a processing unit 101, an AXI bus 103 and a storage unit 104; the video decoder 102 includes a decoding module 111, a reset module 112 and an AXI interface 113, and the AXI interface 113 includes an error control module 114 The processing unit 101 is connected to the decoding module 111, the decoding module 111 is connected to the reset module 112, the reset module 112 is connected to the AXI interface 113, and the AXI interface 113 is connected to the decoding module 111; the error control module 114 is connected with AXI bus 103;

[0037] The decoding module 111 is used to send one or more data operation requests of the current frame to the AXI bus, the data operation request includes a...

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Abstract

The invention discloses a video decoding system and method. The method is applied to a video decoding system. The system comprises a video decoder, a processing unit, an AXI bus and a storage unit; and the video decoder comprises a decoding module, a resetting module and and AXI interface. When the video decoder generates an error while decoding a certain frame of data, the video decoder will reset a wrong frame and start to analyze the next frame of data after processing all data operation requests sent by the wrong frame to the AXI bus, therefore the influence of the data operation requests of the code stream data of the wrong frame on the analysis of the next frame of data can not only be effectively prevented, meanwhile the wrong frame only processes the sent data operation requests and does not need to continuously analyze all wrong frames, which is conducive to saving the power consumption, and thus the video decoding system and method have a broad market prospect in the field of computer chips.

Description

technical field [0001] The invention relates to the field of computer chips, in particular to a video decoding method and system. Background technique [0002] AXI (advanced extensible interface) is a bus protocol, which is one of the most important parts of the AMBA3.0 protocol proposed by ARM. The AXI bus is an on-chip bus for high performance, high bandwidth, and low latency. Since IP has relatively high bandwidth requirements during the video decoding process, it often uses the AXI bus to realize data interaction. [0003] During the transmission process of video code stream data, some errors often occur due to various factors such as channels. The code stream data is generally decoded in units of frames. When an error occurs in the code stream data of a certain frame, if the operation request for the code stream data of the frame is not processed in time, a chain reaction will often occur, affecting the next Analysis of a frame of stream data. How to ensure that whe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/42H04N19/44H04N19/89
Inventor 陈梅芬
Owner FUZHOU ROCKCHIP SEMICON