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Altera_Forum
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11 years ago

Altera SDI II Core - Can it transmit 1024 x 768 resolution video?

Hi

I have video processing blocks which output 1024 x 768 (60 fps) Avalon-ST video stream. At the end of the chain, it is connected to Clocked Video Output (1024 x 768) with embedded synchronization. I connected the CVO output signals to the SDI Tx IP core.

Given I don't have a way to physically test the SDI video output, can someone please confirm if the SDI Tx core can output a video at 1024 x 768 resolution? The SDI II user manual only mentions the typical widescreen resolutions (e.g. 480p, 720p, 1080p).

Thanks in advance!

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  • Altera_Forum's avatar
    Altera_Forum
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    11 years ago

    Hi mbp2014,

    SDI is a format not typically found outside of broadcast facilities. Some of the resolutions match what you might see on a monitor such as 1920x1080 (1080i or 1080p). However, 1024x768 isn't a TV resolution and the SDI core doesn't support it. I'm also not sure what data rate you're using at the end of your chain but as an example, 1080p SDI is roughly 2.97 Gbps.

    If you know the format of your receiver, it might be easier to use a transceiver Native PHY and handle the protocol layer in HDL. Also, opencores.org may have a design that you can use directly or modify for your needs.

    Hope this helps!