Negotiation coding resolution method used for video communication and system thereof

Abstract

The invention discloses a negotiation coding resolution method used for video communication and a system thereof. The negotiation coding resolution method used for the video communication is characterized in that a calling terminal carries out pre-negotiation with a called terminal; when the calling terminal and the called terminal support the coding resolution negotiation, the calling terminal and the called terminal carry out the negotiation by using a maximum coding and decoding resolution which can be supported by a side; if a maximum coding resolution of the calling terminal is not greater than a maximum decoding resolution of the called terminal, the calling terminal uses the coding resolution corresponding to sending data to carry out coding processing on the sending data so as to generate a media stream and the media stream is sent to the called terminal, and the called terminal uses coding resolution information specifically adopted by the calling terminal to carry out decoding on the media stream. Therefore, two parties of communication can establish video communication with different resolutions according to a specific condition of a network side, and service quality of the video communication and a communication experience of a user can be increased.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and system for negotiating encoding 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 terminals with screens to have the ability 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 more and more extensive. [0003] During po...

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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