RGB parallel camera on IMX6

mariuszpiotrows — Mon, 05 Feb 2018 16:07:22 GMT

I am trying to feed 24 bit per pixel (RGB ) over parallel interface to IMX6 SabreSD board,

as reference I was using OV5640 parallel camera (to mimic camera, video is coming from FPGA with separate syncs anyway),

After gStreamer modification (gstimxv4l2.c)

static guint g_camera_format_IPU[] = {
V4L2_PIX_FMT_YUV420,
V4L2_PIX_FMT_NV12,
V4L2_PIX_FMT_YUYV,
V4L2_PIX_FMT_UYVY,
V4L2_PIX_FMT_RGB24,
V4L2_PIX_FMT_BGR24,
0,
};

gStreamer accept RGB format :

gst-launch-1.0 -v imxv4l2src ! 'video/x-raw, format=RGB, width=1920, height=1080' ! imxv4l2sink &
root@imx6qsabresd:~# gst-launch-1.0 -v imxv4l2src ! 'video/x-raw, format=RGBx, width=1920, height=1080' ! imxv4l2sink

But video is treated as 16 bit RGB565 send to frame buffer,

Is there example of code how to feed 24 bit video to IPU ?

modification of ov5640.c

...

ov5640_data.pix.pixelformat = V4L2_PIX_FMT_RGB24;

is not helping eighter, with this mod in place gStreamer can't start at all.

Could anybody advice what are the steps how to use 24 bit RGB parallel camera with IMX6?

Re: RGB parallel camera on IMX6

igorpadykov — Tue, 06 Feb 2018 11:01:22 GMT

Hi Mariusz

also one can check settings IPUx_CSI0_SENS_CONF (CSI0_SENS_DATA_FORMAT,

CSI0_DATA_WIDTH) and hardware connections with Table 66. Camera Input Signal Cross Reference,

Format, and Bits Per Cycle i.MX6DQ Datasheet

http://www.nxp.com/docs/en/data-sheet/IMX6DQCEC.pdf

try with units tests imx-test (../mxc_v4l2_test)
www.nxp.com/lgfiles/NMG/MAD/YOCTO/imx-test-5.7.tar.gz
some useful links with raw capture examples can be found on

Can imx6 support for RGB RAW camera?

Best regards
igor
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i.MX ProcessorsのトピックRGB parallel camera on IMX6

RGB parallel camera on IMX6

Re: RGB parallel camera on IMX6