Video encoding system

A video encoding and encoding technology, which is applied in the field of video encoders, can solve the problems of long-distance high-definition video network transmission and control, single transmission mode, etc., and achieve the effects of friendliness, reduced storage requirements, and superior performance

Inactive Publication Date: 2019-08-02
TAISHAN MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that long-distance high-definition video network transmission and control cannot be carried out, and the transmission mode is single, and a video coding system proposed

Method used

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Experimental program
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Embodiment 1

[0028] A video encoding system, comprising the steps of:

[0029] S1. Through an external audio and video data acquisition device, a part of the collected data is transmitted to the logical interface expansion module through the audio and video data interface module, and the other part is directly transmitted to the H.264 encoding module;

[0030] S2. Process the data transmitted to the logical interface expansion module, and transmit the processed data to the H.264 encoding module;

[0031] S3. When the external audio and video data acquisition device is directly connected to the encoder, the main control module transmits the data processed by the H.264 encoding module to the broadcasting station through the signal transmission module for network push;

[0032] S4. When the encoder is connected to the director station, the main control module directly transmits the data processed by the H.264 encoding module to the integrated encoding and broadcasting machine for network stre...

Embodiment 2

[0040] Embodiment 2: the difference based on Embodiment 1 is;

[0041] The H.264 standard in the present invention absorbs the advantages of the previous standards, and the encoding efficiency can save up to 50% of the code rate compared with H.263+ and MPEG-4SP, and the storage requirement is greatly reduced. It is because of the powerful functions of H.264 and its huge market potential that many companies at home and abroad have begun to study the application of H.264 encoding and decoding, and some products have come out one after another. At present, domestic researches on the H.264 standard have been carried out one after another, and many products have been launched using dedicated H.264 codec chips. The speed of the encoding chip is very fast, but its performance is fixed, and it cannot be improved according to the demand. On the other hand, the performance of the new generation of HEVC encoding algorithm is superior, but due to its immature technology application, H.26...

Embodiment 3

[0043] Embodiment 3: the difference based on embodiment 1 and 2 is;

[0044] Use the PQA600 video quality analysis system to evaluate the encoding quality of the encoder. Table 1 shows the indicators of the encoder equipment. The lower the number, the better the effect. The meaning of the PQR value marked in the table below: 1 = barely detectable damage. 3-4=Impairments are visible, but not significantly resembling composite video. 5=similar to 10Mb / sMPEG-2. 7-8=similar to 4Mb / sMPEG-2. 10=clearly observable impairments, similar to 2Mb / sMPEG-2.

[0045]

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Abstract

The invention discloses a video encoding system in the field of video encoders. According to the video encoding system, an H.264 standard has advantages of other standards so that 50% of encoding efficiency can be saved compared with H.263+ and MPEG-4SP. Therefore, the storage demand is greatly reduced. Due to the powerful function and huge market potential of H.264, many companies at home and abroad start to research the H.264 coding and decoding application and have product disputes. At present, the H.264 standard is studied in China, and a plurality of products are pushed out by using a special H.264 coding and decoding chip. Coding chip speed is fast, however, the performance is fixed, according to the high-definition video sequence real-time encoding method, hardware characteristics are combined, a series of optimization is carried out on the encoder, so that the high-definition video sequence is encoded in real time by the encoder, two output modes are adopted, acquired audio andvideo data can be processed in real time, and the problem of network blockage caused by high-capacity video streams is solved.

Description

technical field [0001] The invention relates to the field of video encoders, in particular to a video encoding system. Background technique [0002] There are two main types of existing video compression encoders: one is E1 video encoder, and the other is IP video encoder. E1 video encoder converts the compressed video stream into E1 signal for long-distance transmission; IP video encoder encapsulates the compressed video stream into IP packets, and communicates with external Ethernet through 10M / 100M Ethernet port Connect and then transmit over long distances via Ethernet. Whether it is an E1 video encoder or an IP video encoder, they all need an external network for transmission. Therefore, these encoders need to install additional transmission equipment behind the encoder, which makes the system equipment and management more complicated. In addition, sometimes an independent external IP network is difficult to guarantee the transmission quality. When large-capacity vid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/765H04N7/01H04N19/42H04N19/44H04L29/06
CPCH04N19/44H04N19/42H04N7/0125H04N5/765H04L65/75H04L65/70
Inventor 刘正金旭
Owner TAISHAN MEDICAL UNIV
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