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Video data flow transmission method, terminal and system

A technology for sending terminals and data streams, which is applied in the direction of video conferencing systems, transmission systems, two-way working systems, etc., to achieve the effect of avoiding transmission overhead

Active Publication Date: 2014-01-22
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Embodiments of the present invention provide a video data stream sending method, terminal, and system to solve the problem that existing video data stream sending schemes will generate unnecessary transmission overhead

Method used

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  • Video data flow transmission method, terminal and system
  • Video data flow transmission method, terminal and system
  • Video data flow transmission method, terminal and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0087] The basis for selecting the sending rule of the video data stream may be "whether the video conferencing terminal detects that it continues to receive voice signals" as described above, or whether the video conferencing terminal receives user input for instructing the video conferencing terminal to turn the microphone The instruction message for setting to mute, whether the video conferencing terminal is connected with an audio signal acquisition device, or whether the video image presentation window of the video conferencing is the focus window currently displayed by the video conferencing terminal, etc.

Embodiment 2

[0089] When the video conferencing terminal sends the video data stream, it can independently adjust the number of encoding layers of the video data stream, that is, adjust the number of extended layer video data streams to be sent.

[0090] In addition, the video conferencing terminal can also adjust the sending rate of the video data stream. For example, for a video conferencing terminal that supports an adaptive rate video codec algorithm, the transmission rate of the extension layer video data stream can be adjusted by adjusting parameters such as the video image frame transmission rate, the video image sampling rate, and the quantization step size;

[0091] For a video conferencing terminal that supports multiple video codec algorithms at different rates, when the video conferencing terminal at the sender switches from sending the basic layer video data stream and the extended layer video data stream to only sending the basic layer video data stream, it can communicate wit...

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Abstract

The invention discloses a video data flow transmission method and terminal, and a video data flow transmission system. A video data flow transmission terminal determines a transmission rule of a video data flow according to the state information of a local multimedia device, and transmits the video data flow to a receiver device according to the transmission rule, thus avoiding unnecessary transmission overheads caused by blind video data flow transmission.

Description

technical field [0001] The invention relates to the field of data services, in particular to a method for sending video data streams, a terminal and a transmission system for video data streams. Background technique [0002] Browser-based real-time communication (RTCWeb, Real-Time Communications Web) is a web application running on a browser, which can be implemented in different A real-time communication connection is established between terminals, so as to transmit media streams (including audio data streams and / or video data streams). [0003] Compared with traditional VoIP applications, the characteristics of RTCWeb are: the local control of the media plane and the terminal is realized by the browser running on the terminal, while the signaling plane is realized by the script program (such as Java script program) embedded in the Web page . Specifically, the process of establishing a media stream transmission channel between different terminals based on a browser and a ...

Claims

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Application Information

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IPC IPC(8): H04N7/15H04N7/24
CPCH04N7/152H04N21/6373H04L65/762H04L65/612
Inventor 邓灵莉朱宇翔陆璐彭晋
Owner CHINA MOBILE COMM GRP CO LTD
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