ofVideoGrabber scanline / refresh rate problem on iOS

Hey guys,

I’m writing an iOS app that incorporates the ofVideoGrabber and I’m having a problem with scanlines on the image when I try to getPixels() and write to a texture or image on update();

I think this has to do with the updatePixelsCB( CGImageRef & ref ) that sets the unsigned char * pixels, but I haven’t found a solution that ensures I get a clean frame.

I see this on the videoGrabberExample packaged with 007. Attached as an (albeit blurry) screenshot of the problem.

Does anyone know a solution to grab a clean frame (no scanlines / in-between frames) on ofVideoGrabber?


Did you ever fix this? I’m having exactly the same problem.