topic Re: iMX8MQ ADV7282-M frame problem in i.MX Processors

iMX8MQ ADV7282-M frame problem

leandroschmitz — Tue, 15 Dec 2020 22:26:00 GMT

Hello, I'm using the driver media/i2c/adv7180.c in kernel 4.19.35 to interface ADV7282-M.

When I use the command gst-launch-1.0 -v v4l2src device="/dev/video0" ! video/x-raw,width=720,height=480,framerate=30/1,format=UYVY ! autovideosink I get image rolling with 6 copies in my 1280x800 screen.

In bar color the image is perfect, but when capturing from the camera the video seems like the attached picture.

I'd like to know if the problem may be in resizing the image, I try to do position and sync adjustment with no effect.

Any help is welcome.

Tks

Re: iMX8MQ ADV7282-M frame problem

igorpadykov — Wed, 16 Dec 2020 00:21:11 GMT

Hi leandroschmitz

for frame problems may be recommended to tweak HSSETTLE as described on

https://community.nxp.com/t5/i-MX-Processors/Explenation-for-HS-SETTLE-parameter-in-MIPI-CSI-D-PHY-registers/m-p/764265

Best regards
igor

Re: iMX8MQ ADV7282-M frame problem

leandroschmitz — Sat, 30 Jan 2021 16:20:07 GMT

Hello Igor,

I did changes in HS-SETTLE and the frame seemed better, but it still drooling over.

I use the command below and see a lot of lost frames.

Any suggestion?

gst-launch-1.0 -v --gst-debug-level=2 v4l2src device="/dev/video0" ! video/x-raw,format=UYVY,width=720,height=480,framerate=30/1 ! autovideosink

0:00:10.049632485 2363 0x29d23c00 WARN v4l2src gstv4l2src.c:980:gst_v4l2src_create:<v4l2src0> lost frames detected: count = 3 - ts: 0:00:09.769480975
0:00:10.133956248 2363 0x29d23c00 WARN v4l2src gstv4l2src.c:980:gst_v4l2src_create:<v4l2src0> lost frames detected: count = 1 - ts: 0:00:09.819049855
0:00:10.154938729 2363 0x29d23c00 WARN v4l2src gstv4l2src.c:980:gst_v4l2src_create:<v4l2src0> lost frames detected: count = 2 - ts: 0:00:09.869953855
0:00:10.218251452 2363 0x29d23c00 WARN v4l2src gstv4l2src.c:980:gst_v4l2src_create:<v4l2src0> lost frames detected: count = 1 - ts: 0:00:09.902210615
0:00:10.262537093 2363 0x29d23c00 WARN v4l2src gstv4l2src.c:980:gst_v4l2src_create:<v4l2src0> lost frames detected: count = 3 - ts: 0:00:09.985278855
0:00:10.365793377 2363 0x29d23c00 WARN v4l2src gstv4l2src.c:980:gst_v4l2src_create:<v4l2src0> lost frames detected: count = 3 - ts: 0:00:10.085224095
0:00:10.450089421 2363 0x29d23c00 WARN v4l2src gstv4l2src.c:980:gst_v4l2src_create:<v4l2src0> lost frames detected: count = 1 - ts: 0:00:10.136004975
0:00:10.471050542 2363 0x29d23c00 WARN v4l2src gstv4l2src.c:980:gst_v4l2src_create:<v4l2src0> lost frames detected: count = 2 - ts: 0:00:10.185198855

Re: iMX8MQ ADV7282-M frame problem

leandroschmitz — Sat, 30 Jan 2021 17:16:36 GMT

Hello Igor,

I did changes in HS-SETTLE and the frame seemed better, but it still drooling over.

I use the command below and see a lot of lost frames.

Any suggestion?

gst-launch-1.0 -v --gst-debug-level=2 v4l2src device="/dev/video0" ! video/x-raw,format=UYVY,width=720,height=480,framerate=30/1 ! autovideosink

Re: iMX8MQ ADV7282-M frame problem

leandroschmitz — Sat, 30 Jan 2021 22:33:23 GMT

Hello Igor,

I did changes in HS-SETTLE and the frame seemed better, but it still drooling over.

I use the command below and see a lot of lost frames.

Any suggestion?

gst-launch-1.0 -v --gst-debug-level=2 v4l2src device="/dev/video0" ! video/x-raw,format=UYVY,width=720,height=480,framerate=30/1 ! autovideosink

Re: iMX8MQ ADV7282-M frame problem

leandroschmitz — Mon, 08 Feb 2021 13:40:02 GMT

Hi,

I add sync=false to the gst-launch command, the screen still scrolling but now de fps is 45.6 before sync=false it was 26.8 fps

gst-launch-1.0 v4l2src device=/dev/video0 --gst-debug-level=2 ! video/x-raw,width=720,height=480 ! autovideosink sync=false

I have to change HS-SETTLE in mxc-mipi-csi2_yav.c from 6 to 0x1f with no success.

adv7282ma is configured to output 720x480@30fps in ITU-R BT.656-3 in 1 Lane with ADC Clock of 57.27MHz.

I think the problem may be csi clock settings, but I don't know how to change it.

Any help?