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Visitor daltonlai
Registered: ‎04-16-2018

ZCU102 DisplayPort video play blink with SDSoC zero_copy pragma

Hello Sir

We have a SDSoC implementation on ZCU102 with following:

1. decode video file with ffmpeg

2. implement an YUV2RGB hardware function

3. display the transfered RGB video on DisplayPort with framebuffer

Also, DisplayPort have change to dual lanes, and framebuffer in RGBA format.

The problem is:

If we use SDS data copy on all the ports(Y,U,V input/RGB output), everything work well.

And, if we apply SDS data zero_copy on the port(one of them, currently is RGB output), it will cause DisplayPort blink when display.


Any suggestions?

Thanks a lot.

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