i.MX ProcessorsのトピックRe: i.MX8MM Support Camera RAW10

i.MX8MM Support Camera RAW10

tcchoub — Mon, 16 Dec 2019 03:17:43 GMT

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

Re: i.MX8MM Support Camera RAW10

joanxie — Thu, 19 Dec 2019 04:40:20 GMT

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)."

Re: i.MX8MM Support Camera RAW10

radhikasomaiya — Mon, 23 Dec 2019 13:07:47 GMT

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.

Re: i.MX8MM Support Camera RAW10

udhayamoorthi — Wed, 23 Nov 2022 06:34:18 GMT

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..

Re: i.MX8MM Support Camera RAW10

btarnowski — Fri, 30 Dec 2022 09:55:26 GMT

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/1573923#M388