No autofocus with rpiCamera source and rpiCameraAfMode: auto

[Ataman]

Which version are you using?

v1.0.3

Which operating system are you using?

• Linux amd64 standard
• Linux amd64 Docker
• Linux arm64 standard
• Linux arm64 Docker
• Linux arm7 standard
• Linux arm7 Docker
• Linux arm6 standard
• Linux arm6 Docker
• Windows amd64 standard
• Windows amd64 Docker (WSL backend)
• macOS amd64 standard
• macOS amd64 Docker
• Other (please describe)

Describe the issue

Autofocus mode auto with rpiCamera source doesn't seem to work i.e.: setting rpiCameraAfMode to auto doesn't achieve focus. I'm using a Raspberry Camera Module 3 connected to a RPi Zero W. Setting rpiCameraAfWindow to something like 0.25,0.25,0.5,0.5 didn't change anything. Using manual focus and setting the lens position works however and so does the continuous setting.
Server logs don't show anything suspicious.
Versions:
OS: Raspbian GNU/Linux 11 (bullseye)
libcamera: v0.0.5+83-bde9b04f
libfreetype6: 2.10.4+dfsg-1+deb11u1

Describe how to replicate the issue

1. Start server with the following configs:

logLevel: debug
logDestinations: [syslog]
rtsp: yes
protocols: [tcp]
rtspAddress: :554
rtmp: no
hls: no
webrtc: no
srt: no

paths:
  live:
    source: rpiCamera
    rpiCameraCamID: 0
    rpiCameraWidth: 1280
    rpiCameraHeight: 720
    rpiCameraHFlip: False
    rpiCameraVFlip: False
    rpiCameraBrightness: 0.0
    rpiCameraContrast: 1
    rpiCameraSaturation: 1
    rpiCameraSharpness: 0
    rpiCameraExposure: auto
    rpiCameraAWB: auto
    rpiCameraDenoise: "cdn_off"
    rpiCameraShutter: 0
    rpiCameraMetering: centre
    rpiCameraGain: 0
    rpiCameraEV: 0
    rpiCameraHDR: false
    rpiCameraFPS: 30
    rpiCameraIDRPeriod: 60
    rpiCameraBitrate: 2000000
    rpiCameraProfile: main
    rpiCameraLevel: '4.1'
    rpiCameraAfMode: auto
    rpiCameraAfRange: normal
    rpiCameraAfSpeed: normal
    rpiCameraLensPosition: 0

2. Connect with VLC to rtsp://<SERVER_IP>:554/live

Did you attach the server logs?

no

Did you attach a network dump?

no

[andreacampanella]

one up for this, I have the same problem

[aler9]

Hello, in order to control the RPI camera, the server uses the same API behind libcamera-vid.

Try using libcamera-vid with --autofocus-mode and --autofocus-window and post the results here.

If autofocus works with libcamera-vid, then there's a bug inside the server that can be solved, otherwise it's an issue that should be reported to libcamera maintainers.

[andreacampanella]

That's Fair enough, I will try as soon as I can

[Ataman]

I made a mistake and wrote continous instead of continuous. Continuous auto focus does indeed work given the parameter is written correctly.

However, auto does not. It works fine with libcamera-vid (achieves focus on start and keeps it) whereas MediaMTX doesn't focus at all.

[LucHeart]

Agreed, same behavior observable here. Camera Module 3 + PI 4

[kanehekili]

Same here. Using rpiCameraAfMode: manual and rpiCameraLensPosition: 0.0 does not prevent from auto focus. Camera Module 3 with RP 2w zero

[aler9]

i took another look at the sample libcamera apps and i found out that auto focus needs an initial scan, that was not triggered. Please try this nightly release and let me know if it fixes the issue.

@kanehekili your issue is off topic here, please open another issue and provide details on how to replicate.

[link removed]

[Ataman]

@aler9 Your nightly release does indeed fix this issue, thank you for working on it!

[aler9]

added in v1.2.1

[github-actions]

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