8mega pixel MIPI CSI-2 camera input

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8mega pixel MIPI CSI-2 camera input

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hyunhoshin
Contributor III

I'm using 8mega pixel MIPI CSI-2 camera(3264 x 2448) on iMX6q

it's find that get 1024 x 1024 pixel image from camera

but more than 1024 x 1024 is not working..

i think that problem by IPU block

How can i remove IPU block in camera input?

I mean "MIPI CSI-2 -> memory".


I'm using 3.0.15 kernel..(sabresd)

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rogerio_silva
NXP Employee
NXP Employee

Hyunho Shin,


MIPI-CSI2 can receive frames up to 8192 x 4096 pixels, but if you need to process the image on some other IPU block (e.g. rotation, resize and etc), the frame size will be limited.


For example, if you need to resize or rotate the image, it will need to pass through the image converter (IC) block and it will limit the input image to 4096x4096 and the output image to 1024x1024. See reference manual chapter 36.3.1.5.3 Image Converter (IC)


This should be the reason you have this limit.


Rgds

Rogerio Pimentel

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rogerio_silva
NXP Employee
NXP Employee

Hyunho Shin,


MIPI-CSI2 can receive frames up to 8192 x 4096 pixels, but if you need to process the image on some other IPU block (e.g. rotation, resize and etc), the frame size will be limited.


For example, if you need to resize or rotate the image, it will need to pass through the image converter (IC) block and it will limit the input image to 4096x4096 and the output image to 1024x1024. See reference manual chapter 36.3.1.5.3 Image Converter (IC)


This should be the reason you have this limit.


Rgds

Rogerio Pimentel

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hyunhoshin
Contributor III

thanks for your reply.

MIPI camera output size is 3264 x 2446 and camera interface output also 3264 x 2446

i think, i don't need to use IC(image converter) block.

but, i think maybe IC block is used.

how can i get 3264 x 2446 image without IC?

I'm using 3.0.15 kernel..(sabresd)

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GaoJianzhong
Contributor IV

Hi

I want to know the frame rate of your camera.

Is it 3264 x 2448@30fps?

Now i have a camra with 2560x1440@30fps,but i can't get the image 2560x1440 image frome it.

Thank you.

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hyunhoshin
Contributor III

i'm using 3264 x 2448 @ 11fps camera

but i also could get 1920 x 1080@30fps without IC(Image Converter)

if you using with IC, only get under 1024 x 1024 image

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GaoJianzhong
Contributor IV

Thank you.

My camera have two modes:4lanes 1280x720@30, and 4lanes 2560x1440@30.

I do not use IC, and i can get the 1280x720@30 images.

But 2560x1440@30 is not work.

Does i.mx6q can support 4lanes 2560x1440@30 camera?

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