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Simple Principles of Voice Chat and Video Chat in Instant Messaging System
Principles of voice chat and video chat;

Data acquisition, data compression and data transmission.

Application:

Chat, video/conference call.

You can see Voip and ipTV.

If you use java, it is estimated that there are corresponding free components available. It should be rewarding to visit various forums such as csdn and pudn.

You can refer to Jingu video conference.

Let me give you an example. Www.5ailiao.net, the video chat program on this website is not bad, at least it works well, but nothing else can help.