Capturing desktop frame and blurring

Hi there,

I was wondering if there’s a way to blur an image with the h264 encoder parameters. I am not seeing anything obvious in the header files.

Here’s the use-case: We have an image that’s intended for a 72 DPI display but we want that image to work well under a 144 DPI display (e.g. macbook retina screen). We could 2x the resolution but that would be more pixels than we’d like to deal with so we’re thinking maybe we can blur the image a bit to remove the jaggies in the text that occur.

Is this possible? What would you recommend?


Encoder is not a right place to do blurring or any video processing in general. We recommend you to pre-process the video frame and feed it to the encoder.