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AR# 70014

2017.3 Zynq UltraScale+ MPSoC VCU: Multistream decoder > 4 FULL HD instance fails with memory allocation errors in Linux

Description

In the 2017.3 Zynq UltraScale+ MPSoC Video Codec Unit (VCU), device memory consumption at various software levels (gstreamer, OMX and control software) is higher than the theoretical values.

This results in memory allocation failure if there are more than 4 instances of the Decoder.

Solution

To resolve this issue, limit the multistream count to 4 1080p30 or increase the CMA size accordingly to support 8 streams.

AR# 70014
Date 10/18/2017
Status Active
Type Known Issues
Devices
  • Zynq UltraScale+ MPSoC
Tools
  • Linux
IP
  • VCU
Boards & Kits
  • Zynq UltraScale Plus MPSoC ZCU106 Evaluation Kit
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