Looks like the image in Rev doesn't have the same width and height as the grabbed picture.
If it's the case, adjust the width and height before putting the picture into the imageData


Hope it helps.

Thierry.

On Tuesday, Dec 30, 2003, at 19:51 Europe/Paris, Trevor DeVore wrote:

On Dec 29, 2003, at 3:29 PM, Thierry Arbellot wrote:
So, the code should look like this:

Okay, I've implemented your code example and am able to get a picture into an image object in Revolution. The pictures I grab from stills or movies don't look right however. You can see what the image should look like here <http://www.mangomultimedia.com/developer/revolution/good_image.jpg> and what the image I am getting in Revolution looks like here <http://www.mangomultimedia.com/developer/revolution/bad_image.jpg>.


I have tried various methods of putting an image into the GWorld (going to a certain time in the movie and putting that into the GWorld as well as using the QT API call GetMoviePict/GetMoviePosterPic) with the same result.

Any ideas on what might be happening?


Here is the code:


// Get movie dimensions and create offscreen GWorld
GetMovieBox(mv, &movieFrame);
NewGWorld(&theGWorld, k32ARGBPixelFormat, &movieFrame, NULL, NULL, (GWorldFlags)0);


SetGWorld(theGWorld, NULL);

// get image from movie and put into GWorld
thePicHandle = GetMoviePosterPict (mv);
EraseRect(&movieFrame);
DrawPicture(thePicHandle, &movieFrame);

LockPixels(GetPortPixMap(theGWorld));
thePixMap = *(GetPortPixMap(theGWorld));

if (thePixMap->baseAddr != NULL) {
        rdata.sptr = thePixMap->baseAddr;
        rdata.length = movieFrame.right * movieFrame.bottom * 4;
        
        SetVariableEx(args[0], "", &rdata, &retvalue);
        
        retstr = (char *)malloc(8);
        sprintf(retstr, "%s", "Success");
} else {
        retstr = (char *)malloc(8);
        sprintf(retstr, "%s", "Failure");
}

UnlockPixels(GetPortPixMap(theGWorld));
DisposeGWorld(theGWorld);
DisposeHandle((Handle)thePicHandle);
CloseMovieFile(refnum);
DisposeMovie(mv);

--
Trevor DeVore
Blue Mango Multimedia
[EMAIL PROTECTED]

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