From 6c4f4cbb585bbb124cadc2ed6ef7b8aeae5ce82e Mon Sep 17 00:00:00 2001 From: Archit Taneja Date: Thu, 12 Dec 2013 05:36:02 -0300 Subject: [PATCH] [media] v4l: ti-vpe: Add helper to perform color conversion The CSC block can be used for color space conversion between YUV and RGB formats. It is configurable via a programmable set of coefficients. Add functionality to choose the appropriate CSC coefficients and program them in the CSC registers. We take the source and destination colorspace formats as the arguments, and choose the coefficient table accordingly. YUV to RGB coefficients are provided for standard and high definition colorspaces. The coefficients can also be limited or full range. For now, only full range coefficients are chosen. We would need some sort of control ioctl for the user to specify the range needed. Not sure if there is a generic control ioctl for this already? Signed-off-by: Archit Taneja Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- Reading git-format-patch failed