topic Re: Does it support Color space conversion in fsl-L4.9.11 kernel? in i.MX Processors

Does it support Color space conversion in fsl-L4.9.11 kernel?

liangyan — Wed, 29 Jul 2020 02:51:58 GMT

_ipu_dp_set_csc_coefficients() /drivers/mxc/ipu_disp.c, i want to change CSC using ioctl method, but it has no effect.

if i change dp_csc_param.mode = -1 into dp_csc_param.mode = DP_COM_CONF_CSC_DEF_BOTH, it has effective

so it does not support change CSC, in timely

Re: Does it support Color space conversion in fsl-L4.9.11 kernel?

joanxie — Wed, 29 Jul 2020 05:07:41 GMT

pls refer to the source code as below:

https://community.nxp.com/docs/DOC-101053

Re: Does it support Color space conversion in fsl-L4.9.11 kernel?

liangyan — Wed, 29 Jul 2020 05:22:02 GMT

试过了，不起作用，你们测试过？

Re: Does it support Color space conversion in fsl-L4.9.11 kernel?

liangyan — Wed, 29 Jul 2020 05:23:17 GMT

默认驱动初始化过程中是关闭CSC功能的，

Re: Does it support Color space conversion in fsl-L4.9.11 kernel?

joanxie — Thu, 30 Jul 2020 08:39:12 GMT

yes, this is tested version, another solution that you can use gstreamer, the command like:

Color Space Conversion (CSC)
"gst-launch-1.0 videotestsrc ! video/x-raw,format=NV12 ! imxvideoconvert_ipu ! video/xraw,
format=RGB16 ! ximagesink display=:0"