Video encoding rate self-adaptive device and method in mobile network environment

A mobile network and video coding technology, applied in digital video signal modification, electrical components, image communication, etc., can solve problems such as waste and shortage of network resources, and achieve the effects of convenient adjustment, convenient control strategy, and network utilization expansion

Inactive Publication Date: 2016-01-06
北京易视云科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the technical problem of waste or shortage of network resources in the existing fixed code rate, the present invention provides an adaptive device and method for video coding code rate in a mobile network environment

Method used

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  • Video encoding rate self-adaptive device and method in mobile network environment
  • Video encoding rate self-adaptive device and method in mobile network environment
  • Video encoding rate self-adaptive device and method in mobile network environment

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Embodiment 1

[0037] Such as figure 1 Shown is a video coding rate adaptive device 100 in a mobile network environment provided by this embodiment, and the device 100 includes:

[0038] The encoder 101 is used to encode the data to be transmitted according to predetermined rules, and the encoder 101 can adjust the encoding code rate according to the network status during the data transmission process, instead of setting it to a fixed code rate;

[0039] a buffer 102, configured to buffer the data to be transmitted encoded by the encoder;

[0040] A channel detector 103, configured to detect the state of the buffer, so as to obtain whether the current network bandwidth matches the current code rate;

[0041] The code rate controller 104 of the encoder is configured to increase or decrease or maintain the current code rate according to the detection result of the channel detector.

[0042] Preferably, the code rate controller 104 always controls the buffer 102 to maintain a half-full state,...

Embodiment 2

[0061] The method for adaptive video coding rate in the mobile network environment provided by this embodiment can refer to the first embodiment, the difference is that the control strategy provided by the second embodiment does not keep the buffer half full.

[0062] Specifically, such as image 3 As shown, the video coding bit rate adaptive method in the mobile network environment provided by this embodiment includes:

[0063] S301. Detect the buffer status of the current buffer through the channel detector;

[0064] S302, judging whether the current network bandwidth matches the current code rate, the criterion for judging is whether the current network bandwidth can allow the buffer 102 to work in a fully loaded state, that is, the amount of data cached in the buffer 102 is close to what can be stored in the buffer 102 The state of the maximum storage capacity; if yes, execute S303, otherwise execute S304;

[0065] S303. Maintain the current code rate of the encoder;

...

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Abstract

In order to solve the technical problem of network resource waste or insufficiency of a constant code rate in the prior art, the invention provides a video encoding rate self-adaptive device and method in a mobile network environment. The device comprises an encoder, a buffer and a channel detector used for detecting the state of the buffer to determine whether a current network bandwidth is matched with a current code rate; a code rate controller of the encoder used for increasing or decreasing or maintaining the current code rate according to a detection result of the channel detector and making full use of the current channel capability on the premise of guaranteeing the implementation of upload or download; and thus the network utilization rate is expanded on the condition that effective data transmission can be guaranteed.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, and in particular to a device and method for adapting video coding rate in a mobile network environment. Background technique [0002] Mobile networks are widely deployed and can be used to provide various communication services such as data, voice, video, etc. These networks include at least wireless wide area network (WWAN), wireless local area network (WLAN) and wireless personal area network using wireless communication technology network (WPAN), etc. [0003] With the development of wireless communication technology, people's communication and exchanges have become more convenient, and Internet technology has entered into various fields of people's lives more quickly. For example, in the Chinese patent application with the Chinese patent application number CN201310222507.7, a technical solution for detecting and demodulating signal / transmission is disclosed. Specifica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/146H04N19/164
Inventor 陈建文
Owner 北京易视云科技有限公司
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