Method and system for dynamically adjusting video call code streams

Abstract

The invention discloses a method and system for dynamically adjusting video call code streams. The method comprises that a first client takes the timing value of a first timer as first time when a video is coded; when the first client sends video data to a second client, the first time is sent to the second client at the same time; the second client decodes and plays the received video data and takes the timing value of a second timer as second time when the video data is decoded and played; the second client obtains the difference value between the first time and the second time and sends the difference value to the first client in real time; the first client obtains a current call performance effect through comparing the difference value with a preset threshold value; and the first client dynamically adjusts the coded video code streams according to the current call performance effect. According to the method and the system, through judging the magnitude of the video image delay, the video call code streams are dynamically and self-adaptively adjusted, and therefore, abnormal phenomena such as image delay and packet loss can be reduced or avoided.

Description

technical field [0001] The invention relates to the field of video communication, in particular to a method and system for dynamically adjusting code streams of video calls. Background technique [0002] Based on video communication technology, the development of video call (or videophone) application products is currently in full swing, and has become the focus of attention of application providers, operators and users. Currently, video calls are developing in the direction of high-definition. [0003] In a real-time video call, the system and the client at the sending end need to encode and compress the audio and video collected locally, and then send the data to the opposite end through the uplink of the local network. The system and client at the receiving end need to receive the audio and video data through the downlink of the local network, and then decode and play. [0004] In practical applications, when the network bandwidth of the video call sender or receiver cha...

AI Technical Summary

Problems solved by technology

Some applications have been improved, that is, the receiving end also detects the downlink bandwidth of the receiving end, but how to feedback it to the sending end in a timely and reliable manner is also a difficult problem

[0008] Second, the sender can only detect the network bandwidth, but cannot provide effective detection methods for the system's processing capabilities (such as memory buffering, codec processing)

The receiving end first obtains the video data from the network transmission port, and then sends it to the system for processing, so the detection of the size of the downlink network stream at the receiving end cannot reflect the system processing capability of the receiving end

[0009] The third is that the implementation method of network speed measurement is relatively complicated. At the same time, because the real-time traffic data of the network port often fluctuates greatly, it will cause the terminal to analyze and judge whether there is an abnormal situation in a timely and reasonable manner.

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