Win32 Socket using WSAsy-Model

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Hi ! I want to use the WSAAsyncSelect model and udp to transmit the picture captured by the camera , using VFW , the picture formatation is BMP , the GDI+ could convet the BMP to JPG in very limited size . Now I want to transport the .jpg pictures using UDP . but it does not work very well . Is there any other ways to impliment the real-time transmission , forget about the RTP, I know nothing about this protocol.

Posted 26-Sep-11 0:50am

Younth

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Albert Holguin · Answer 1 · 2011-09-26T05:01:00

Solution 1

RTP is just built within UDP, it's not very complex at all. It doesn't really buy you too much over UDP however. Are you looking to transfer video over a network? Why does UDP "not work very well"?

Commercial VTC equipment uses application layer protocols built over UDP. Maybe you just need to re-evaluate your implementation.

Posted 26-Sep-11 5:01am

Albert Holguin

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Younth 27-Sep-11 8:49am

um , I just don't kown the exact way ! remote camera grabs the pictures and saved as BMP format , then convert into jpg , my thoughts very simple but may be just a joke : using winsock2 tranfer the remote jpg to local and using GDI+ to show the jpg, so there are two disk operations ,first save in remote host , then transfer to local machine saved as jpg , it seems not to be a good way to finish the task. If the memory bytes don't need to save in disk with files , that would be better.So how to show a .jpg format picture in memory bytes other then disk files ?

Albert Holguin 27-Sep-11 13:37pm

Don't think I understand your question.

Albert Holguin 27-Sep-11 13:38pm

Why would you need to save an image on the remote machine if you don't have to?