Video and Vision Processing Suite Intel® FPGA IP User Guide

ID 683329
Date 5/08/2024
Public

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Document Table of Contents
1. About the Video and Vision Processing Suite 2. Getting Started with the Video and Vision Processing IPs 3. Video and Vision Processing IPs Functional Description 4. Video and Vision Processing IP Interfaces 5. Video and Vision Processing IP Registers 6. Video and Vision Processing IPs Software Programming Model 7. Protocol Converter Intel® FPGA IP 8. 1D LUT Intel® FPGA IP 9. 3D LUT Intel® FPGA IP 10. AXI-Stream Broadcaster Intel® FPGA IP 11. Bits per Color Sample Adapter Intel FPGA IP 12. Black Level Correction Intel® FPGA IP 13. Black Level Statistics Intel® FPGA IP 14. Chroma Key Intel® FPGA IP 15. Chroma Resampler Intel® FPGA IP 16. Clipper Intel® FPGA IP 17. Clocked Video Input Intel® FPGA IP 18. Clocked Video to Full-Raster Converter Intel® FPGA IP 19. Clocked Video Output Intel® FPGA IP 20. Color Plane Manager Intel® FPGA IP 21. Color Space Converter Intel® FPGA IP 22. Defective Pixel Correction Intel® FPGA IP 23. Deinterlacer Intel® FPGA IP 24. Demosaic Intel® FPGA IP 25. FIR Filter Intel® FPGA IP 26. Frame Cleaner Intel® FPGA IP 27. Full-Raster to Clocked Video Converter Intel® FPGA IP 28. Full-Raster to Streaming Converter Intel® FPGA IP 29. Genlock Controller Intel® FPGA IP 30. Generic Crosspoint Intel® FPGA IP 31. Genlock Signal Router Intel® FPGA IP 32. Guard Bands Intel® FPGA IP 33. Histogram Statistics Intel® FPGA IP 34. Interlacer Intel® FPGA IP 35. Mixer Intel® FPGA IP 36. Pixels in Parallel Converter Intel® FPGA IP 37. Scaler Intel® FPGA IP 38. Stream Cleaner Intel® FPGA IP 39. Switch Intel® FPGA IP 40. Tone Mapping Operator Intel® FPGA IP 41. Test Pattern Generator Intel® FPGA IP 42. Unsharp Mask Intel® FPGA IP 43. Video and Vision Monitor Intel FPGA IP 44. Video Frame Buffer Intel® FPGA IP 45. Video Frame Reader Intel FPGA IP 46. Video Frame Writer Intel FPGA IP 47. Video Streaming FIFO Intel® FPGA IP 48. Video Timing Generator Intel® FPGA IP 49. Vignette Correction Intel® FPGA IP 50. Warp Intel® FPGA IP 51. White Balance Correction Intel® FPGA IP 52. White Balance Statistics Intel® FPGA IP 53. Design Security 54. Document Revision History for Video and Vision Processing Suite User Guide

43.3. Video and Vision Monitor IP Functional Description

When using the full variant of the Intel FPGA Streaming Video interface protocol, the Video and Vision Monitor IP searches the incoming video stream for image information packets. The IP decodes the image information packets and then produces the contents of the last image information packet that you receive via the register map. The Image Information packets also specify the expected resolution for each incoming video frame. The IP counts the number of pixels in each line and the number of lines in each frame. Based on the values of these counters and the expected frame size, the IP keeps a count of the number of frames that match and do not match their expected sizes. The IP also counts the number of frames for which the following end-of-field packets assert their broken frame flag. The IP reports all these values to you via the register map. You can also reset the frame counts at any time by writing to an address in the register map.

Lite variants of the Intel FPGA Streaming Video interface protocol have no image information packets in the incoming stream to provide details of the expected frame size. You must supply this information via the register map. Lite variants also have no end-of-field packets, so this counter is not when Lite mode is on. Other than these differences, the behavior of the IP is the same as with the full variant of the protocol.

When the IP and its interfaces are parameterized for a single pixel in parallel, the IP can count the exact number of pixels in each line. The Intel FPGA Streaming Video protocol does not indicate that any of the pixels are unused on the final data beat of each packet when interfaces are parameterized for multiple pixels in parallel. Therefore, the IP cannot exactly count the number of pixels in each line when the number of pixels in parallel is greater than 1. It can count the number of beats of data in the packet and, based on this value, provide an upper and lower bound on the number of pixels.

pixels_in_parallel x (data_beats-1) + 1 <= number_of_pixels <= pixels_in_parallel x data_beats

The IP reports two-line length values to the register map:

  • The minimum number of pixels in any line packet for the most recent frame, taken from the lower bound count of the number of pixels for each line.
  • The maximum number of pixels in any line packet for the most recent frame, taken from the upper bound count of the number of pixels for each line.

If the IP is parameterized for 1 pixel in parallel, for frames that match their specified dimensions both these reported width values match the specified width. If the IP is parameterized for multiple pixels in parallel, the maximum and minimum line lengths have different values but adhere to the following constraints for frames that match their sizes.

expected_width – pixels_in_parallel < minimum_width <= expected_width

expected_width <= maximum_width < expected_width + pixels_in_parallel

The IP checks these constraints when deciding if each frame has to match its expected dimensions.