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Video code stream transmission processing method

A processing method and stream transmission technology, applied in television, electrical components, image communication, etc., can solve the problems of low code stream transmission efficiency, easy packet loss, high communication overhead, etc., to improve code stream transmission efficiency and meet real-time performance , the effect of reducing communication overhead

Inactive Publication Date: 2004-01-07
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an efficient video code stream adaptive packaging method to overcome the shortcomings of high communication overhead, low code stream transmission efficiency and easy packet loss when the network is congested

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  • Video code stream transmission processing method
  • Video code stream transmission processing method
  • Video code stream transmission processing method

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Experimental program
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Embodiment Construction

[0029] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0030] Taking the IEEE 802.3 protocol as an example, the video code stream transmission processing method of the present invention is specifically described as follows. See figure 1 :

[0031] The first step is to set the threshold Th1 of the data packet payload based on the maximum number of valid bits of the data packet specified in the IEEE 802.3 protocol, and set two buffers Buf1 and Buf2 with the size of Th1; for the global variable g_nMbPos (representing the macro block Position), g_PacketFrmGob (indicating whether the data packet uses GOB as the encapsulation boundary) initialization; the specific implementation is as follows:

[0032] a. The IEEE 802.3 protocol stipulates that the size of the Ethernet packet is 1.5kByte, while the size of the Ethernet packet header is 14Byte, the IP packet header size is 20Byte, the UDP packet header size is 8Byte, the R...

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Abstract

A video stream transmission process method includes: a data packet effective load threshold 1 two buffer storages 1,2 as large as the threshold are designed and initialized with the biggest effective bit number stipulated in the protocol as the basis, a macrocode stream output from the coder is stored in buffer storage 2 which position attribute is judged, the sum of streams in buffer storages 1 and 2 is judged to see if it is smaller than threshold 1,and to packet and package the streams in case smaller than threshold 1, or continue to packet and package streams in the case bigger or equal to threshold1, to package transmission protocol packets to user data protocol packets to IP packets entering into an IP channel then return back.

Description

Technical field [0001] The invention belongs to the field of image information transmission and processing, and specifically relates to an efficient video code stream adaptive packaging method. Background technique [0002] The transmission of real-time video streams on the Internet has become an important part of Internet multimedia applications, and the packaging of video streams before entering the channel is the key issue in this part, which directly affects the full utilization of network resources and transmission efficiency. If the video data encapsulation mode is not selected properly, it will cause an increase in communication overhead; if the payload of the video data packet is too large, it will easily cause the loss of the video data packet when the network is congested, which will damage the image quality; if the video data packet If the payload is too small, valuable network bandwidth will be wasted. [0003] There are two types of traditional video data packaging m...

Claims

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Application Information

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IPC IPC(8): H04N7/00
Inventor 王宁周蓉林碧霞
Owner ZTE CORP