i.MX6 convert YUV422 input to ARGB4444 within IPU

[宗標廖]

Hello, Community

I have a question about IPU of i.MX6.

I capture YUV422 video through a camera, and I want to convert YUV422 data to

ARGB4444 data with Color Space Conversion function of Image Converter.

I donnot know whether can I achieve my idea or not.

Could you help me?

Thank you!

Best Regards,

ZongbiaoLiao

[igorpadykov]

Hi 宗標 廖

suggest to look at ipu csc examples below

ipu-examples release notes - v0.1

Best regards

igor

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[宗標廖]

Hello,igor

Thank you for you previous answer.

I have read the release notes- v0.1 and the  source code of ipu csc examples.

Besides,I read the <L3.0.35>/include/linux/ipu.h and <L3.10.17>/include/uapi/linux/ipu.h,

and I have not found a format for ARGB4444.

So I am wondering whether the IPU of i.MX6 supports the conversion from YUV422 to ARGB4444.

Best Regards,

ZongbiaoLiao

[igorpadykov]

Hello ZongbiaoLiao

yes, it supports it.

One can use these examples and sect.

37.4.5 Image Converter IMX6DQRM

for adding support for new formats.

~igor

[宗標廖]

Hello,igor

I changed the output format from v4l2_fourcc('R', 'G', 'B', 'P') to v4l2_fourcc('R', '4', '4', '4') in the

csc_ex1.c file of ipu_examples. And I compiled it with Yocto toolchain.

When I run it on imx6solosabreauto board,I got the message imx-ipuv3 2400000.ipu: mxc ipu: unimplemented pixel format.

I believe that the v4l2_fourcc('R', '4', '4', '4') is represents ARGB4444.So,through my test,I don't think ipu of imx6 supports ARGB4444,

is it right?

Best Regards,

ZongbiaoLiao

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