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How to add/interface a third video input to the DM8168 ?

What I would like to:  Have three HDMI inputs (1080p60 / 148.5 MHz, 2 x 8 bits) connected to the DM8168. Each of the inputs must be routed to the HDVICP2 devices for encoding / compression. Bandwidth reduced outputs from the HDVICP2 devices will have to be streamed over EMAC and/or USB devices.

I guess the best way to do this, is to use the two HDVPSS devices for the video capture from the first two HDMI receivers, but how to I route a third input. ?

Initially I thought that I could use the GPIO ports for this, but as they are limited to 125MHz system clock, I will have to add extra hardware to de-multiplex, and then multiplex internally in the DM8168 before inputting to the third HDVICP2 component.  I guess it could be done with DMM tiler 1, but it requires a lot of work. 

Is there another easy way to connect a third input ?

 

 

 

 

  • Casper,

    The video ports are limited to 2 ports at 148.5MHz. If you reduce the pixel clock then you can possibly capture more streams depending on their formats.

    The only other way to get an additional video stream in that I can think of is through either USB of PCIe, but this then becomes a significantly more complex design.

    BR,

    Steve