TDA4VMXEVM: Pattern generation with GStreamer: Change video port direction

Brahim Salh

Part Number: TDA4VMXEVM

Hi TI,

I'm using to TDA4 EVM in order to generate video patterns, I run the following command to generate the pattern:

gst-launch-1.0 videotestsrc pattern=4 num-buffers=1000 ! 'video/x-raw, format=(string)BGRA, width=1920, height=1080' ! waylandsink

After the execution, I can see the pattern on the monitor which is connected to Display port 0.

I would like to know how I can do the same thing but through HDMI (via infotainment board) and also through the FPD-Link which is connected to the integrated 941 serializer.

Generally speaking, how I can change the generated pattern direction from display port to FPD-Link interface.

Thank you,

Brahim

over 5 years ago

0 Brijesh Jadav over 5 years ago

TI__Guru**** 495125 points

Hi Brahim,

I think the steps remain same, you still have to use same gStreamer command for HDMI output.

Could you please refer to PSDKLA userguide to see if HDMI is supported and how DSS can be changed to HDMI?

Rgds,

Brijesh

0 Brahim Salh over 5 years ago in reply to Brijesh Jadav

TI__Intellectual 1345 points

Hi Brijesh,

I would like to send the pattern through FPD-Link (HSD Connector).

As you can see in the command above, there is no parameter to choose between Display Port or FPD-Link.

It is not mentioned anywhere in the user guide :(

Thanks,

Brahim

0 Brijesh Jadav over 5 years ago in reply to Brahim Salh

TI__Guru**** 495125 points

Hi Brahim,

I am not sure about it, i think output does not matter, it should just draw pattern and send output via pipeline, then pipeline should be connected to DSI output.

Rgds,

Brijesh

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TDA4VMXEVM: Pattern generation with GStreamer: Change video port direction