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Method and system for transmitting ultra-high compressed code streams by audio and video network, and using method thereof

A technology of compressed code stream and network transmission, which is applied in the field of data transmission, and can solve the problems of monitoring audio and video cannot be transmitted, large audio and video picture delay, and large storage space, so as to achieve clear and smooth pictures, smooth communication, and simple implementation Effect

Inactive Publication Date: 2019-04-23
上海和绪信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, in the existing technologies, the encoding compression rate is relatively low, monitoring audio and video cannot be transmitted or the picture is almost unclear, and the delay of audio and video images is relatively large, the storage space is relatively large, the packet loss rate is relatively high, and the phenomenon of dropped packets is serious. , the network transmission is not smooth, and the number of transmission monitoring audio and video channels is relatively small, etc.

Method used

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  • Method and system for transmitting ultra-high compressed code streams by audio and video network, and using method thereof

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Embodiment 1

[0031] An audio and video network transmission ultra-high compression stream system, comprising:

[0032] The first network port is used to receive the compressed code stream transmitted by the player;

[0033] The PC control terminal transmits the compressed code stream to the transcoder;

[0034] The transcoder includes a code stream analysis tool, a bare code stream extraction tool and a code stream packaging tool;

[0035] The code stream analysis tool decodes and analyzes the compressed code stream;

[0036] The naked code stream extraction tool strips the analyzed code stream out of the naked code stream;

[0037] The naked code stream is encoded by an ultra-high compression encoding algorithm;

[0038] The code stream encapsulation tool repackages and compresses the code stream encoded by the ultra-high compression coding algorithm;

[0039] The code stream is integrated and processed into a complete code stream after being repackaged;

[0040] After the code strea...

Embodiment 2

[0045] The present invention also provides a method for transmitting an ultra-highly compressed code stream through an audio and video network, including a signal decomposition and collection transmission unit and a transcoder unit; the signal decomposition and collection transmission unit decomposes, collects and transmits the input signal to the transcoder The transcoder unit first controls the signal through a general encoder, and converts, scales and quantizes the signal, then inversely converts and scales the signal and transmits it to the filter for control analysis, and decodes and transmits the signal to the image buffer, and then through the signal output unit to output the signal.

[0046] After the signal is transformed, scaled and quantized, estimation and prediction are performed on the intra-frame coded image, and intra-prediction data is generated.

[0047] The transcoder performs motion compensation and estimation on the image buffer, and generates motion data....

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Abstract

The invention discloses a method and system for transmitting ultra-high compressed code streams by an audio and video network. The system comprises a first network port, wherein a PC control terminaltransmits the compressed code streams to a transcoder; a code stream analysis tool decodes and analyzes the compressed code streams; a bare code stream extraction tool strips bare code streams out ofthe analyzed code streams; the bare code streams are encoded by the ultra-high compressed coding algorithm; a code stream encapsulation tool repackages and compresses the code streams coded by the ultra-high compressed coding algorithm; the code streams are integrated into a complete code stream after re-encapsulation; and the code stream is output through the second network port after integration. The invention, which overcomes the deficiencies of the prior art, adopts the ultra-high compressed code stream algorithm, the optimized code transmission structure, the TCP retransmission algorithmand the ultra-low delay network transmission technology to make simpler realization of the monitoring audio and video transmission, clearer and smoother pictures, lower and more accurate voice delay,smoother communication, and more space-saving storage.

Description

technical field [0001] The invention relates to the technical field of data transmission, in particular to a method and system for transmitting an ultra-high compression code stream over an audio and video network and a method for using the same. Background technique [0002] At present, the mainstream similar products include DVRs from manufacturers such as Dahua, Hikvision, and Huawei as codec devices. Its main features are monitoring audio and video encoding and decoding; using H.264 or H.265 encoding technology for compressed transmission and storage. [0003] However, in the existing technologies, the encoding compression rate is relatively low, monitoring audio and video cannot be transmitted or the picture is almost unclear, and the delay of audio and video images is relatively large, the storage space is relatively large, the packet loss rate is relatively high, and the phenomenon of dropped packets is serious. , The network transmission is not smooth, and the numbe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/18H04N21/2343H04N19/42H04N19/40H04N19/13
CPCH04N7/18H04N19/13H04N19/40H04N19/42H04N21/234309
Inventor 吕臣柱王智慧
Owner 上海和绪信息科技有限公司
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