Luckfox Forums

brentr

Turns out, the FEC works fine after one sets this in rkisp.ini:

[isp.0.enhancement]
distortion_correction = FEC

distortion correction is normally a boolean. However, 'FEC' is a 3rd value reserved for use with the RV1126B. You don't get per stream selection. FEC is on for all streams or off for ...

brentr

Thank you for the prompt response!

Could you provide a link to the "appendix document" or its full title?

brentr

We now have the Luckfox RV1126B running rkipc providing video 1920X1080 @60fps from a IMX415 camera.

This post was very helpful in getting the ISP to work with the IMX415 in binned HD 60fps mode:
https://forums.luckfox.com/viewtopic.php?t=1432

Can anyone point me to comprehensive documentation ...

brentr

Modified imx415.c driver in the supplied SDK to create a binned 1920x1080 60fps native video mode.
I'd be happy to share the patch if there were some way to do so on this message board.

brentr

When we start the rkaiq_3A_server, the video produced on /dev/video13
become monochrome. Automatic exposure is working well.

Is there a different /dev/video or /dev/media output for color frames?
Is there some configuration we are missing?

We have tested with the unmodified imx415 driver.

brentr

We do need the native 1920x1080 image format and have modified the imx415.c driver accordingly.
The system now streams HD video at 38fps.
The vertical_blanking control is set to its minimum value of 1154.

Like the poster of https://forums.luckfox.com/viewtopic.php?t=2577
we would like to get the ...

brentr

The IMX415 recommended for use with this board is limited to 19.4fps due to the processing limits of the RV1126B.

We do not need the sensor's full 4K resolution.
How does one configure the sensor for 2x2 binning to reduce its readout to HD
(1920x1080) resolution?

brentr

I've figured out how to slow the frame rate by increasing the vertical blanking interval with:

v4l2-ctl -d /dev/v4l-subdev4 --set-ctrl vertical_blanking=200 #any value >58
although the system responds with:
VIDIOC_SUBDEV_S_CLIENT_CAP: failed: Inappropriate ioctl for device
it still performs the ...

brentr

I followed the instructions in:
https://forums.luckfox.com/viewtopic.php?p=7829

to add hardware video encoding/decoding to the standard Debian Trixie image.

The test code pipeline:
gst-launch-1.0 videotestsrc num-buffers=600 ! video/x-raw,format=NV12,width=640,height=320,framerate=60/1 ...

brentr

Why can't this board boot from its SDcard?
Is it due to some hardware limitation, or simply a limitation in the supplied bootloader?

Note that I maintain Armbian for the RockPI-S and am considering porting it to this (very similar) board.
That would involve porting Armbian's U-Boot over to it ...

Search found 11 matches

Re: RKIPC configuration

Re: RKIPC configuration

RKIPC configuration

Re: v4lsrc device="/dev/video13" always streams at 19.4 frames per second

rkaiq_3A_server produces monochrome video

Re: v4lsrc device="/dev/video13" always streams at 19.4 frames per second

How to enable IMX415 readout 2x2 binning (mode 3)?

Re: v4lsrc device="/dev/video13" always streams at 19.4 frames per second

v4lsrc device="/dev/video13" always streams at 19.4 frames per second

Boot from SDcard?