Mobile equipment video stream transmission control method and system

A stream transmission control and mobile device technology, applied in the direction of image communication, selective content distribution, electrical components, etc., can solve problems such as blurred screen, video streaming freezes, etc., and achieve reliable image quality, delay and rapid recovery of fluency , to ensure the effect of image quality

Inactive Publication Date: 2016-01-20
ALLWINNER TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of stuck and blurred screen in video stream playback in the traditional technology, the present invention provides a video stream transmission control method and system for mobile devices with low delay in video stream playback and good image quality

Method used

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  • Mobile equipment video stream transmission control method and system
  • Mobile equipment video stream transmission control method and system
  • Mobile equipment video stream transmission control method and system

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Experimental program
Comparison scheme
Effect test

Embodiment approach

[0049] As an implementable manner, detecting the network detection parameters of the transmission network in real time includes the following steps:

[0050] The internal transmission statistical parameters of the wireless chip network driver are detected in real time as the first input.

[0051] Real-time detection of the total size of the data buffer used by the current streaming media after encapsulation is used as the second input.

[0052] Detect the available memory of the current system in real time as the third input.

[0053] The threshold table stores preset threshold levels for decision-making video encoder parameter adjustment and display resolution adjustment, and serves as the fifth input.

[0054] The weight ratio of the first input > the weight ratio of the second input > the weight ratio of the third input.

[0055] Obtain the internal transmission statistical parameters of the wireless chip network driver, obtain the total data buffer usage size after strea...

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Abstract

The invention provides a mobile equipment video stream transmission control method and system. The method comprises the following steps: in a video stream transmission process, detecting a network detection parameter of a transmission network in real time; and performing adjustment processing on a video and the network transmission parameter once again according to the network detection parameter, wherein the adjustment processing of the video and the network transmission parameter includes parameter adjustment relevant to a video encoding end and parameter adjustment of a wireless chip network driver. According to the method and the system, a preset threshold level satisfied by the network detection parameter in a threshold table is calculated according to a weight ratio of the network detection parameter, and a frame rate, a code rate and a display resolution are adjusted according to the preset threshold level, so that low delay and smoothness of video playing are ensured and can be recovered rapidly under the situation of not influencing or slightly lowering the image quality. Through detection of a flag bit used for distinguishing whether video stream data belong to a B frame or a P frame and output by a video encoder, transmission of video key frames can be ensured, thereby ensuring the reliable image quality, and providing good user experience.

Description

technical field [0001] The invention relates to the field of digital video data transmission in a wireless network, in particular to a method and system for controlling video stream transmission of a mobile device. Background technique [0002] With the rise of smart systems such as iOS (Iphone Operating System, Apple Operating System) and Android (Android Operating System), the functions of mobile devices (smart phones, tablet computers) are becoming more and more powerful. Due to the limitations of mobile device screens, many entertainment content ( Such as video, real-time recording or game) needs to be transmitted to a large-screen device for playback and display. These contents are usually directly transmitted to the content of streaming media files, or real-time capture of the buffer (buffer) displayed by the system, and transmitted to the decoder through video codec On the device side, this poses new challenges to the performance of mobile devices and the performance ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/647H04N21/63
CPCH04N21/647
Inventor 魏子恒
Owner ALLWINNER TECH CO LTD
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