CODEWITHSUNDEEP
qtnetwork-programming
Afonso Tsukamoto
Afonso Tsukamoto

Reputation: 1214

Video and Audio Chat Protocols/Frameworks

I've been doing some research in how to implement a server free, point-to-point video/audio chat (i.e., my own skype without text messaging).

I've been looking for ways to implement it and I had this next ideas:

  1. A multithreaded c++ (cause I know some c++) program getting audio and video (with qt), sending it through 2 different UDP sockets and reading video and audio from 2 other different UDP sockets from the other 'point'. So I'll had to write the UDP server and client multithreaded with a sum of 4 threads: 2 for sending audio and video, other 2 to receive audio and video.

  2. Writing my own protocol to enable video and audio in the same thread, something like parsing half of the packet data size for audio and video buffering, which would leave me with only 2 threads in the application and a lot more 'error prone' code to write.

  3. I've been looking to some real time media protocols, and some of them looked interesting. Maybe study and implement interfaces to this protocols and use them instead of 'creating' my own.

Now, the actual question(s):

  1. Are there some documentation on how to accomplish this? Maybe some 'state of the art' apis/protocols that are being used or well implemented/suited solutions for this problem?

  2. If I choose to implement audio separated from video, is VoIP a possible solution to the audio connection?

  3. Is Qt a good tool for this purpose? I never used Qt before, and for video and audio interfaces I also thought about openframeworks, so I was wondering if anyone has ever used one of this frameworks and if this is the right choice.

I know that my question has no code and that the range of possible answers is wide, but I really need some help here.

Thanks.

Upvotes: 1

Views: 1442

Answers (2)

MineScript
MineScript

Reputation: 321

You need VOIP library’s :)

There's no need to start from scratch you can use library’s opensource like: opalvoip

Upvotes: 0

Dmitry Sazonov
Dmitry Sazonov

Reputation: 8994

First, you should answer on question: How your clients should connect / authorize without server part?

Notes: 1) Skype has servers. 2) A lot of internet users are visiting web throught NAT / Proxy.

Ofc, you can try to implement something for learning proposes, but if you want to create something usefull - try thirdparty solutions that are created by specialists. For example: google libjingle.

Upvotes: 1

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