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librabryant
Visitor
Visitor
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Registered: ‎04-24-2019

zcu106 board 2018.3:gstreamer tools can't work on PL, from mixer to HDMI output the Y8 format video

I meet the issue by using the gstream tools to out put the Y8 format video

step1: use the following the command to check the video source. -----ok

yavta --enum-formats /dev/video0

step2: use the following the command to capture the video . -----ok

yavta /dev/video0 -c1 -n1 -s 3840x2160 -f Y8 -Fbayers.raw

step3: use the following the command to configure the hdmi . -----ok

modetest -D a0070000.v_mix -s 40:3840x2160-60@BG24 &

step4: use the following the command to enable the video capture and hdmi output . -----fail

gst-launch-1.0 v4l2src device=/dev/video0 io-mode=4 ! video/x-raw, width=3840, height=2160, format=GREY, framerate=60/1 ! fpsdisplaysink text-overlay=false video-sink="kmssink bus-id="a0070000.v_mix" plane-id=29"

y8.txt is the testing log
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watari
Teacher
Teacher
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Registered: ‎06-16-2013

Hi @librabryant 

 

Since HDMI Tx doesn't support gray scale, you are facing this issue.

What do you want to do ?

Output gray scale (Y8) ?

If yes, would you convert it from Y8 to RGB888 ?

 

Best regards,

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