TDA4VM: Mosaic config with multiple graphs

sagarkirtany

Part Number: TDA4VM

Hello,

We are working with TI TDA4 EVM and PSDK-RTOS-J721E 8.02.00.05.
Our apps are built with Linux+RTOS.

We are trying to build an app with 2 graphs.
The output of the 2 graphs is to be shown in split-screen fashion on the same display.
One problem here is that the latencies of the 2 graphs are different.
However, as soon as output of one graph is available, we want to be able to display it.

How can we configure the mosaic node for this app?
Are there any references in the TI SDK that we can use for this?

Thanks and regards.

over 1 year ago

0 Nikhil Dasan over 1 year ago

TI__Guru* 87076 points

Hi,

If you have 2 graphs, is the mosaic node part of third graph? Could you brief me the flow?

Regards,

Nikhil

0 sagarkirtany over 1 year ago in reply to Nikhil Dasan

Genius 4950 points

Hello Nikhil,

You are correct in that we will need to make the mosaic and DSS part of a 3rd graph.

Thanks and regards.

+1 Nikhil Dasan over 1 year ago in reply to sagarkirtany

TI__Guru* 87076 points

Hi,

The issue here would be that the there would be 2 inputs to the mosaic node and it will only start execution when it has both the inputs ready.

One thing that you could do here is that is you have video pipes to spare, you could use 2 video pipe of Display (one in each graph) and use the Display node to scale down the image and point both the video pipes to the same display.

Regards,

Nikhil

0 sagarkirtany over 1 year ago in reply to Nikhil Dasan

Genius 4950 points

Hello Nikhil,

You are suggesting that we should not use the mosaic node in our app.
Instead, we should propagate our output directly to DSS.
Is this correct?

Thanks and regards.

0 Nikhil Dasan over 1 year ago in reply to sagarkirtany

TI__Guru* 87076 points

Yes, that is correct.

Regards,

Nikhil

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TDA4VM: Mosaic config with multiple graphs