Zynq UltraScale＋ MPSoC VCU TRD 2019.1 - PCIe Transcode
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In the system to card direction, the DMA block moves data from the host memory to the PL-side through PCIe and then writes the data to PS-DDR via AXI-MM interface. Then VCU IP reads data from PS-DDR, performs Video encoding/decoding and writes it back to the same memory. Lastly, in card to system direction, DMA reads PS-DDR via AXI-MM interface and writes to host system memory through PCIe.
Figure 1: VCU PCIe Hardware Block Diagram
Components, Features, and Functions
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2 Other Information
2.1 Known Issues
- For VCU related known issues please refer AR# 7165372293: PetaLinux 20182019.3 1 - Product Update Release Notes and Known Issues.
2.2 Limitations
- For playback in DP, video input resolution should match to DP's native resolution. This constraint is due to support of GUI. In GUI case if we allow video source other than native resolution(by setting fullscreen overlay) then graphics layer will disappear. To recover back GUI user need to kill and relaunch the GUI app. To avoid such condition TRD only supports video input resolution which is equal to DP's native resolution.
- For VCU related limitations please refer AR# 7165372293: PetaLinux 20182019.3 1 - Product Update Release Notes and Known Issues and PG252 link.
2.3 Optimum VCU Encoder parameters for use-cases:
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