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Real-time receiving method of network code stream based on high-speed decoding platform

A network code stream and real-time receiving technology, which is applied in the field of image processing, can solve problems such as network data transmission blockage and difficulty in processing data in time, and achieve the effects of avoiding transmission blockage, saving overhead, and reducing delay

Active Publication Date: 2018-08-03
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that it is difficult to process incoming data in a timely manner, resulting in network data transmission congestion

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  • Real-time receiving method of network code stream based on high-speed decoding platform

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Embodiment Construction

[0034] Attached below figure 1 The implementation steps of the present invention are described in detail.

[0035] Step 1. Initialize each pointer of the code stream storage area.

[0036] There are four pointers in the code stream storage area, the first pointer pS is the start position pointer of the code stream storage area, the second pointer pE is the end position pointer of the code stream storage area, and the third pointer pW is the writable code stream storage area The starting position pointer of the input code stream, the fourth pointer pR is the starting position pointer of the code stream storage area that can read the code stream;

[0037] Apply for a memory space of 500M in the memory space of the high-speed decoding platform to store the received data. During initialization, the first pointer pS points to the starting position of the memory space, the second pointer pE points to the end position of the memory space, and the second pointer pE points to the end ...

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Abstract

The invention discloses a network code stream real-time receiving method based on a high-speed decoding platform, which mainly solves the problem of network data transmission blocking in the prior art. Its implementation steps are: (1) initialize each pointer of the code stream storage area; (2) write the newly received code stream into the code stream storage area; (3) read out the code stream data from the code stream storage area; (4) Split the read code stream data into each frame of JPEG2000 image data, and send the split data into the linked list to be decoded; (5) Take out the linked list to be decoded through the idle core in the high-speed decoding platform The image data is decoded to complete the real-time reception of the network code stream. The invention reduces the time delay in network transmission, can effectively avoid network transmission blocking, and can be used to realize real-time decoding of JPEG2000 images.

Description

technical field [0001] The invention relates to the technical field of image processing, and further relates to a method for receiving network code streams in real time, which can be used for image compression and decoding of multi-core digital devices. Background technique [0002] With the rapid development of data transmission technology, the data bandwidth of the network is getting larger and larger. A large amount of data transmitted at high speed needs to be processed in real time. Ordinary single-core processing systems can no longer meet the needs of real-time data processing, and it is against this background that multi-core processing systems emerge. There are a large number of image compression code streams in these high-speed data. If you want to use these images, you must first decode them. Decoding is a complex task that consumes a lot of computer resources. In addition, a large number of code streams will arrive in a short period of time. It is difficult for...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/423
Inventor 张静牛高阳李云松袁文頔
Owner XIDIAN UNIV