AnsweredAssumed Answered

Convert 8bit grayscale buffer to be accepted by vpuenc gstreamer element?

Question asked by chris whittenburg on Sep 8, 2014
Latest reply on Oct 9, 2014 by chris whittenburg

I have a monochrom image sensor connected to my imx6q board, capturing 30fps 1280x960 8bit grayscale images using gstreamer and the mfw_v4lsrc element.  Converting from 8bit grayscale to I420 should be quick, but it appears memcpy out of a dma coherent buffer is very inefficient.  What other tricks can I use to do this in hardware?  Converting to I420 should involve just growing the buffer by 614,400 bytes and filling that area with 128.

Outcomes