imx6sololite not support usb Camera YUV422 output

[taowang]

I am now developing a monitoring equipment, because the camera and the imx6sololite is far from the distance, about 20cm, can only use usb camera , can not use the CSI interface

Camera. But the  IMX6SoloLite video interface only supports YUV 420 encoding into h264, and  usb camera can only output YUV422 format。 so I need to use the software to turn,the  YUV422 to  YUV420, but this is seriously  Occupy CPU resources, even though the resolution of 680*480 can reach 80% CPU occupancy rate. 720P is even higher, so the Software conversion format Could not be used

Please comment there is no good way to solve this problem?

[igorpadykov]

Hi tao

i.MX6SoloLite has not VPU, VPU uses YUV420 for encoding into h264.

In general, link below shows examples with CSC for conversion YUV422 to  YUV420

https://community.freescale.com/docs/DOC-94961

Best regards

igor

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[taowang]

Hi igor

thank you。

I am wrong， i used i.MX6Solo  not i.MX6SoloLite。

I used to try to use IPU to convert the format, but it looks like the IPU interface is CSI not USB

Best regards

wang yuntao

[igorpadykov · Accepted solution]

Hi tao

i.MX6Solo has vpu and one can use example on link below

and probably SDK example ips_csc.c

https://community.freescale.com/docs/DOC-94961

Best regards

igor

[taowang]

it works。 thank u very much。