Method and system for negotiating encoding resolution in video communications

Abstract

The invention discloses a method and system for negotiating encoding resolution in video communication. Among them, in the method for negotiating encoding resolution in video communication, the calling terminal performs pre-negotiation with the called terminal. When both the calling terminal and the called terminal support encoding resolution negotiation, the calling terminal and the called terminal The terminal negotiates with the maximum codec resolution supported by the local side. If the maximum codec resolution of the calling terminal is not greater than the maximum decoding resolution of the called terminal, the calling terminal uses the codec resolution corresponding to the sent data to The transmitted data is encoded to generate a media stream, and the media stream is sent to the called terminal, and the called terminal decodes the media stream by using the encoding resolution information specifically adopted by the calling terminal. Therefore, the communication parties can establish video communication with different resolutions according to the specific conditions of the network side, and can improve the service quality of video communication and the user's communication experience.

Description

Technical field [0001] The present invention relates to the field of communication, and in particular to a method and system for negotiating coding resolution in video communication. Background technique [0002] The development of the mobile Internet has promoted the growth of the smart terminal industry chain, and smart phones and tablet computers have become hot spots in the terminal market. The introduction of new operating systems and the improvement of chip processing performance have enabled various screened terminals to support the development of video communication functions. Operators, terminal developers, and Internet manufacturers have developed and launched Internet-based or 3G (The Third Generation , The third-generation mobile communication technology) point-to-point video communication function. From Facetime on IPhone4 to various telepresence products, the application of video communication is becoming more and more extensive. [0003] In point-to-point video com...

AI Technical Summary

Problems solved by technology

At present, due to the different uplink bandwidth and downlink bandwidth of different networks, the downlink bandwidth of some users is more than 10 times the uplink bandwidth. The current symmetrical negotiation requires the video communication terminal to have the same encoding and decoding resolution. The uplink bandwidth at one end is insufficient. In order to reduce the bit rate, a lower resolution must be used for video communication, which cannot make full use of the network bandwidth, resulting in poor user experience.

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