[iMX8MP] [ISP] What should be correct value of streamid in vvext?

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[iMX8MP] [ISP] What should be correct value of streamid in vvext?

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khang_letruong
Senior Contributor III

Hello Community,

I am developing with isp-imx-4.2.2.11.0 and isp-vvcam-rel_imx_5.4.70_2.3.2. I would like to know what is the role of streamid as input of vvext utility :

 

root@imx-camera:/opt/imx8-isp/bin# ./vvext     
ERROR  : [VVEXT:] usage: ./vvext videoid streamid
ERROR  : [VVEXT:] OR
ERROR  : [VVEXT:] usage: ./vvext videoid streamid 'windowname' 'param string' 

 

And what should be the correct value? In case I have dual cameras /dev/video0 and /dev/video1, should streamid = 0 for /dev/video0 and 1 for /dev/video1 or it can be 0 for both cameras :

 

root@imx-camera:/opt/imx8-isp/bin# ./vvext 0 0 
root@imx-camera:/opt/imx8-isp/bin# ./vvext 1 1

 

or

 

root@imx-camera:/opt/imx8-isp/bin# ./vvext 0 0
root@imx-camera:/opt/imx8-isp/bin# ./vvext 1 0

 

Thanks in advance and best regards,

Khang.

 

 

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joanxie
NXP TechSupport
NXP TechSupport

for vvext value, we don't have fixed value for every customer, customer needs to test by themselves based on their own application

 

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