i.MX8MM Support Camera RAW10

[tcchoub]

Dear Sir,

I can display camera RAW8 (640x480) on i.MX8MM normally.

(by "gst-launch-1.0 -v v4l2src device=/dev/video0 ! bayer2rgb ! autovideosink")

But, when I display RAW10 (640x480), the image will be very noisy.

(Please see the attached file to display raw10 black-white color-bar)

The warnning message (by --gst-debug-level=3) is below:

--------------------------------------------------------------------------------------------------

 0:00:00.525927500 3957 0x2fcb84a0 WARN v4l2bufferpool gstv4l2bufferpool.c:794:gst_v4l2_buffer_pool_start:<v4l2src0:pool:src> Uncertain or not enough buffers, enabling copy threshold

0:00:01.029631125 3957 0x2fcb84a0 WARN waylandsink wlwindow.c:174:gst_wl_window_new_internal: init surface_state fail, fallback to scale=1 fullscreen (1920x1048)
0:00:01.031814500 3957 0x2fcb8940 WARN v4l2src gstv4l2src.c:692:gst_v4l2src_query:<v4l2src0> Can't give latency since framerate isn't fixated !

--------------------------------------------------------------------------------------------------

I found the following discussion of  "Support Camera RAW10" in NXP Community:

-- Camera Support For RAW10 Format 

-- Ov5640 camera RAW10 format on i.MX8MM  

-- Confirmed support for RAW12 through 4-lane CSI-2 sensor on i.MX8M? 

Currently, I modify "mx6s_capture.c" as below:

(a).

static struct mx6s_fmt formats[] = {

.......................................

{
.name = "RAWRGB10 (SBGGR10)",
.fourcc = V4L2_PIX_FMT_SBGGR10,
.pixelformat = V4L2_PIX_FMT_SBGGR10,
.mbus_code = MEDIA_BUS_FMT_SBGGR10_1X10,
.bpp = 2,
}

}

(b).

witch (csi_dev->fmt->pixelformat) {
.................................................
case V4L2_PIX_FMT_SBGGR10:
width = pix->width * 2;
break;
.................................................
}

(c).

cr1 = csi_read(csi_dev, CSI_CSICR1);
cr1 &= ~BIT_GCLK_MODE;
cr1 |= BIT_PIXEL_BIT; 
csi_write(csi_dev, cr1, CSI_CSICR1);

(d). 

switch (csi_dev->fmt->pixelformat) {

...........................................
PIX_FMT_SBGGR10:
cr18 |= BIT_MIPI_DATA_FORMAT_RAW10;
break;
............................................
}

Does anyone can help us ?  Our Question:

1). Have any configuration I need to modify to support RAW10 ? 

2). For RAW10 data arranged(i.e. 16-bit with actual data in the 10 high bits), does any code/configuration we need to modify ? 

Many thanks for your help.

Sincerely,

TC.Chou

[btarnowski]

There is solution for RAW10 with patches, it works!!!

https://community.nxp.com/t5/i-MX-Graphics/gst-launch-1-0-returns-Internal-data-stream-error/m-p/157...

[radhikasomaiya]

Hi tcchoub@gmail.com ,

Can you please provide the below information:

1.  Are you using gstreamer1.0-plugins-good? if yes, then can you please provide the steps which you have used to add "bayer2rgb"?

2.  Which yocto version you are using?

Regards,

Radhika Somaiya.

[joanxie]

if you can display raw8 but failed with raw10, pls check if you set your sensor correct, another customer used OV725 has the same issue, he fixed this issue as below:

" it was a camera configuration issue. Our camera was sending the one line of meta data as pixel data instead of the correct mipi meta data packet type (0x12)."

[udhayamoorthi]

same issue here.. i can able to stream or capture using raw8 but can't able to stream or capture on raw10 with imx8mm..am i missing something? i have followed some thread to add raw 10 but it didn't helped me..