Example of running gstreamer on GMSL camera

youngtaek 发表于 2020-10-16 14:32
Okay got it.

Sending YUV from camera means that, it will bypass ISP in xavier, right?

Sorry for late replay.

>>Sending YUV from camera means that, it will bypass ISP in xavier, right?
Yes.

>>Does image format conversion (to supported image formats in SDK) rely on CPU/GPU?
No. Just checked the code.
It's handled by IVC, nor CPU or GPU. The GPU mentioned in header file is wrong.

>>For the specific camera function requirement, what I think important is
>>1) ROI of white balance
>>>2) Upper/lower limit of auto gain /  exposure time
Now, these 2 is handled in camera's ISP, and they didn't provide such API.
We can introduce the camera vendor to you, maybe they can help.

Here is Camera spec by Sensing

大米力 发表于 2020-10-16 19:40
Here is Camera spec by Sensing

I still have no idea why the camera pipeline design is like this.
Since you're having control over all the xavier components, let the camera sending raw output and controlling it with ISP in xavier is much easier to customize rather than contacting camera manufacturer everytime when you need.
But anyway if you can provide me specific contact point, I'll ask them to get something, get back to you to apply those changes.

youngtaek 发表于 2020-10-19 12:35
I still have no idea why the camera pipeline design is like this.
Since you're having control over ...

Hi，because MIIVII is not a camera vender, so we can't do ISP tuning, its hard to use libargus on Xavier. so we choose camera with ISP to send YUV data.

大米力 发表于 2020-10-28 17:41
Hi，because MIIVII is not a camera vender, so we can't do ISP tuning, its hard to use libargus on  ...

I got it.
When can I get contact point of camera vendor?

youngtaek 发表于 2020-10-30 14:31
I got it.
When can I get contact point of camera vendor?

you can contact sales@sensing-world.com
or

peter@sensing-world.com

米米米 发表于 2020-10-16 13:23
You are correct. It's not limited by gstreamer, but by the default source plugin.

Regarding ISP,  ...

Hi,

I remember that you've mentioned about either opensourcing or sharing the code
Any progress?

youngtaek 发表于 2020-11-5 11:54
Hi,

I remember that you've mentioned about either opensourcing or sharing the code

Hi, sorry for being late.
We are discussing the IP of this issue, it's not possible to compatible with v4l in the current time.
And maintain a gstreamer source is out of the capacity of our team.

The most possible solution is to create a gstreamer source with the SDK.
And you can do it without our support.

Thanks.