Libcamera-apps built from source does not have autofocus option

Raspberry Pi Cameras
1

I am using IMX230 and followed the instructions in “1.2. Build from the source code” to build libcamera and libcamera-apps.

The built binaries do not accept the --autofocus option.

On the other hand, the pre-compiled binaries does accept the --autofocus option.

Do I need to add any options at build time?

2

Sorry.
I found the following in the documentation.

Note: Please install the Arducam latest version of libcamera-dev and libcamera-apps, and update the firmware of Pivariety(contacting Arducam: [email protected]) if the camera can not autofocus.

3

Hi @genarks

Yes, we have added some controls, but we haven’t released its source code yet (the changes are a bit ugly), if you need it, I can send you a patch.

4

Hello @wong

That’s a very nice offer!!
Could you please send me the patch?

Thank you.

5

libcamera-apps:
base on: 729df015fb37ab25abd73c4832f9e7fa5d1cb8de
libcamera-apps.patch (2.3 KB)

libcamera:
base on: 579f55b1086db0d7df1608ad24513a673818f408
libcamera-focus.patch (2.0 KB)

2 Likes
6

Thanks @wong

I modified the signal handler in libcamera-vid to autofocus when a signal is received.

IMX230 is very cool!!!

7

I’m glad you like it. Since libcamera does not have auto focus support yet, we added this hack ourselves. Its implementation is a bit ugly. I believe libcamera will officially add auto focus support in the near future. I am looking forward to it.

1 Like
8

I just found this patches here. I have two questions:

  1. Are this still the latest versions of this patches?
  2. Do they still apply to the current main branche ob libcamera-apps?
  3. Could you place the patches somewhere on GitHub, where it is easier to find them?
  4. What is the license of this patches?
9

Basically, yes.

No, you need to pay attention to the commit information on the patch.

Thanks for the suggestion, we’re sorting it out, I think we should be able to create a fork of libcamera-apps.

It’s currently not explicitly specified, you can think of it as the same BSD 2-Clause protocol as libcamera-apps.

1 Like
10

Thanks for the answers. :+1: A fork of libcamera-apps would be grate, please ping me if you created something usable.

11

FYI I made a fork of the latest libcamera-apps with the patches included:

12

@wong Any update on the release of the source code ? I need to build a custom version of libcamera-jpeg and it has been more than a year since you said you would release it.

Thanks for the help

13

@GuillaumeLeclerc

We have made the source code open source and available to the public.

libcamera:

libcamera-apps