AM62A7-Q1: fbdevsink issue

Kim TaeJung

Intellectual 620 points

Part Number: AM62A7-Q1

Tool/software:

Hi,

We are currently outputting camera video to fbdevsink.

The testing environment is in progress at DEVKIT.

There is a strange symptom where lines appear on the screen when printing.

What's the problem?

Regards,

Kim

over 1 year ago

0 Suren Porwar over 1 year ago

TI__Mastermind 29655 points

Hi Kim,

Could you share the pipeline you are testing with? Also I am guessing you are using 9.2 SDK released software.

This will help reproduce the issue on our end and debug.

Best Regards,

Suren

0 Kim TaeJung over 1 year ago in reply to Suren Porwar

Intellectual 620 points

Hi,

We are testing on 9.1 sdk.

The above symptoms did not appear when using kmssink.

gst-launch-1.0 v4l2src device=/dev/video3 ! video/x-raw, width=640, height=480, format=UYVY ! tiovxdlcolorconvert ! videoconvert ! fbdevsink sync=false

Regards,

Kim

0 Suren Porwar over 1 year ago in reply to Kim TaeJung

TI__Mastermind 29655 points

Hi Kim,

Any reasons why you are using fbdevsink over kmssink/waylandsink?

Best Regards,

Suren

0 Kim TaeJung over 1 year ago in reply to Suren Porwar

Intellectual 620 points

Hi,

We plan to output the camera using fbdevsink and then overlay it with kmssink.

Regards,

Kim

0 Kim TaeJung over 1 year ago in reply to Kim TaeJung

Intellectual 620 points

Suren Porwar

Is there no way?

0 Kim TaeJung over 1 year ago in reply to Kim TaeJung

Intellectual 620 points

Even if test with a USB camera in the devkit, the symptoms are the same.

0 Suren Porwar over 1 year ago in reply to Kim TaeJung

TI__Mastermind 29655 points

Hi Kim,

fbdevsink is not supported on our SDK. kmssink and waylandsink are replacement for fbdevsink.

Hope this helps.

Best Regards,

Suren

0 Kim TaeJung over 1 year ago in reply to Suren Porwar

Intellectual 620 points

Hi,

I understand that kmssink cannot be used when using waylandsink.

Right?

So is there a way to do two outputs on one display?

Regards,

Kim

0 Suren Porwar over 1 year ago in reply to Kim TaeJung

TI__Mastermind 29655 points

Hi Kim,

Yes thats correct understanding, we cannot use waylandsink and kmssink together.

You could try using tiovxmosaic to display two or more outputs on a single display. They would be displayed side by side(based on the x and y co-ordinates) that we can specify.

Something like this:

gst-launch-1.0 \
videotestsrc num-buffers=100 pattern=ball ! "video/x-raw,format=NV12, width=640, height=480" ! queue ! mosaic.sink_0 \
videotestsrc num-buffers=100 pattern=ball ! "video/x-raw,format=NV12, width=640, height=480" ! queue ! mosaic.sink_1 \
videotestsrc num-buffers=100 pattern=ball ! "video/x-raw,format=NV12, width=640, height=480" ! queue ! mosaic.sink_2 \
videotestsrc num-buffers=100 pattern=ball ! "video/x-raw,format=NV12, width=640, height=480" ! queue ! mosaic.sink_3 \
tiovxmosaic name=mosaic \
sink_0::startx="<0>" sink_0::starty="<0>" \
sink_1::startx="<640>" sink_1::starty="<480>" \
sink_2::startx="<0>" sink_2::starty="<480>" \
sink_3::startx="<640>" sink_3::starty="<0>" ! kmssink driver-name=tidss plane_id=41 force-modesetting=true

Best Regards,

Suren

0 Kim TaeJung over 1 year ago in reply to Suren Porwar

Intellectual 620 points

Hi,

Thanks for the example.

What I want to do is put the image on top of the camera output.

Are there any similar examples?

Regards,

Kim

+1 Suren Porwar over 1 year ago in reply to Kim TaeJung

TI__Mastermind 29655 points

Do you want to overlay a still image on top of the camera output?

I had done something like this where i am overlaying a png file on top of the camera capture while displaying.

gst-launch-1.0 -v v4l2src device=/dev/video-imx219-cam0 io-mode=5 ! \
video/x-bayer, width=1920, height=1080, framerate=30/1, format=rggb10 ! queue leaky=2 ! \
tiovxisp sink_0::device=/dev/v4l-imx219-subdev0 sensor-name="SENSOR_SONY_IMX219_RPI" dcc-isp-file=/opt/imaging/imx219/linear/dcc_viss_10b.bin sink_0::dcc-2a-file=/opt/imaging/imx219/linear/dcc_2a_10b.bin format-msb=9 ! \
video/x-raw, format=NV12, width=1920, height=1080, framerate=30/1 ! queue ! \
gdkpixbufoverlay location=planets.png offset-x=400 offset-y=400 ! queue ! \
clockoverlay time-format="%D %H:%M:%S" ! \
kmssink driver-name=tidss sync=false force-modesetting=true

Best Regards,

Suren

0 Kim TaeJung over 1 year ago in reply to Suren Porwar

Intellectual 620 points

Hi,

It works well

Thanks

Regards,

Kim

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AM62A7-Q1: fbdevsink issue