jpg to bmp from FrameCallbackProc without fileio

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#313

From: Peter Fagerbrant
Date: Mon, 17 Jan 2005 13:02

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Hi.

Erlier in my application I capture frames from a USB camera with driver set 
at RGB24. I use the:
LRESULT PASCAL FrameCallbackProc(HWND hWnd, LPVIDEOHDR lpVHdr)
{ <snip>

I do some imgageprocessing directly on the bitmap arays.

My problem.
Now I have a new USB camera where I only can set the driver to jpeg.

What I need is to access the bitmapinfo as in my case with the RGB24 
version.

I do not understund the jpeg format well enogh to do a decompress by source.

I do not want to temporary save to a file, I need it to work directly on the 
arrays.
decompress the jpeg data directly from the lpVHdr->lpData and store it to an 
array CAMRESX*CAMRESY*3 large

Any sugestions?

I need to to work in memory becuse I need the speed. At least processing of 
10 frames/sek.

Best reg
Peter Fagerbrant

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From: "Peter Fagerbrant" <peter@fagerbrant.com>
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Subject: jpg to bmp from FrameCallbackProc without fileio
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