Hi, I'm using avcodec and swcale to to display a MPJEG stream in a Qt application.
avcodec decode image as YUV image and swscale rescale it in a RGB32 image to fit in the windows. I would like to provide a zoom feature, i so i am wondering if any way exists with swscale to rescale only the selected region. For example, I got an original YUV image as 1280x800 pixels, the destination widget is 640x480 pixels, but i want only to display the region [0,0] to [320,240]. Is swscale able to to that? I have some difficulties to understand all variables in the documentation. Thank for your help
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