Known Limitations - Known Limitations - 6.3 English - XD056

Vitis Video Analytics SDK (VVAS) 6.3 User Guide (XD056)

Document_ID
XD056
Release_Date
2026-09-24
Version
6.3 English
  • The release focuses on functionality and some feature may not be fully optimized for performance.

  • Supported batch size is limited to 1 in vvas_xinfer plug-in.

  • Supported inference level is limited to 1 in vvas_xinfer plug-in.

  • Software pre-processing (libvvas_image_process_sw_lib.so) is not supported in this release.

  • This release has been validated with color video formats and does not support monochrome input.

  • Running multiple models concurrently is resulting in occasional failure and putting the board in bad state.

  • Using ctrl-C while application is ongoing may result in abnormal termination.

  • The image_processing kernel requires the minimum cropping width and height to be 16. If the cropping width or height is less than 16, then cropping is not performed.

  • If the Image Processing kernel is being used for resizing, scaling, or cropping, then the output resolution width must be a multiple of 8*PPC (Pixel Per Clock). The image_processing kernel can be configured to process 1, 2, or 4 pixels per clock. The higher the PPC value, the higher the throughput. The kernel will always write the data in chunks of 8*PPC. If the output width is not a multiple of 8*PPC, then there might be some garbage data in the right side of the image, depending on the difference between the actual width and the 8*PPC aligned width.