Video and Image Processing Suite User Guide

ID 683416
Date 2/12/2021
Public

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9.5. Low-Latency Mode

When you turn on Synchronize background to layer 0 in the Mixer II parameter editor, the IP core operates in low-latency mode.

In low-latency mode, the Mixer II IP core synchronizes its operations to the incoming video on layer 0. Each video frame received on layer 0 generates a frame at the IP core's output. The dimensions of the output video matches the dimensions of the input frame.

For layer mapping in low-latency mode, the Mixer II IP core functions in the following behavior:

  • If you turn off the Layer Position Enable parameter when the IP core is in low-latency mode, the Mixer II IP core synchronizes its operation to input 0 (for this parameterization, input 0 will be mapped to layer 0).
  • If you turn on the Layer Position Enable parameter when the IP core is in low-latency mode, the Mixer IP core synchronizes its operation to the input that is mapped to layer 0 by its Layer position n control register.