Video and Vision Processing Suite IP User Guide

ID 683329
Date 3/30/2025
Public

Visible to Intel only — GUID: jbo1660918515331

Ixiasoft

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 IP 8. 1D LUT IP 9. 3D LUT IP 10. Adaptive Noise Reduction IP 11. Advanced Test Pattern Generator IP 12. AXI-Stream Broadcaster IP 13. Bits per Color Sample Adapter IP 14. Black Level Correction IP 15. Black Level Statistics IP 16. Chroma Key IP 17. Chroma Resampler IP 18. Clipper IP 19. Clocked Video Input IP 20. Clocked Video to Full-Raster Converter IP 21. Clocked Video Output IP 22. Color Plane Manager IP 23. Color Space Converter IP 24. Defective Pixel Correction IP 25. Deinterlacer IP 26. Demosaic IP 27. FIR Filter IP 28. Frame Cleaner IP 29. Full-Raster to Clocked Video Converter IP 30. Full-Raster to Streaming Converter IP 31. Genlock Controller IP 32. Generic Crosspoint IP 33. Genlock Signal Router IP 34. Guard Bands IP 35. Histogram Statistics IP 36. Interlacer IP 37. Mixer IP 38. Pixels in Parallel Converter IP 39. Scaler IP 40. Stream Cleaner IP 41. Switch IP 42. Text Box IP 43. Tone Mapping Operator IP 44. Test Pattern Generator IP 45. Unsharp Mask IP 46. Video and Vision Monitor Intel FPGA IP 47. Video Frame Buffer IP 48. Video Frame Reader Intel FPGA IP 49. Video Frame Writer Intel FPGA IP 50. Video Streaming FIFO IP 51. Video Timing Generator IP 52. Vignette Correction IP 53. Warp IP 54. White Balance Correction IP 55. White Balance Statistics IP 56. Design Security 57. Document Revision History for Video and Vision Processing Suite User Guide

36.3. Interlacer IP Functional Description

The IP converts input sequences of progressive frames into sequences of alternating F0 and F1 fields. F0 fields contain the even indexed lines from the progressive frame and F1 fields contain the odd indexed lines. Each progressive frame is converted into a single output field, either F0 or F1. The IP has no option to buffer the input frame and output both fields. If the Interlacer IP receives content that is already interlaced, the incoming interlaced fields propagate to the output unaltered.

It may not be appropriate for the interlacer to produce an interlaced sequence according to the original interlaced history for the progressive frames. For example, if frame rate conversion occurs after deinterlacing and before the interlacer, the rate conversion may destroy the original sequence of alternating F0 and F1 fields. You can set a parameter for this feature if you do not turn on Memory-mapped control interface via the register map, or via a register map setting if Memory-mapped control interface is on. This feature is only available when using the full variant of the Intel FPGA Streaming Video protocol as image information packets make it work. Image information packets are not available with the lite variant.

If you do not turn on run-time control of the IP through the register map, the IP converts all progressive input frames to interlaced fields. After any change to the height, width, or interlace identifier specified in the incoming image information packets, the IP resets the sequence of F0 and F1 fields at the output. The Send F1 first parameter sets whether F0 or F1 is sent first after any reset. If you turn on run-time control via the register map, you can select whether the output sequence restarts with an F0 or an F1 field at run time, and the parameter is unused. Run-time control also allows you to turn off interlacing and pass through the progressive frames unaltered. If you turn on Lite mode, you must set the image information values (input frame width, input frame height and input interlace nibble) via the register map. Any edits to these registers cause a reset of the output interlacing sequence. Similarly, changes to these values in the incoming image information packets cause a reset with the full variant of the protocol.

Override of interlace sequence from image information packet

The interlaced nibble field in the Intel FPGA Streaming Video image information packets indicates the progressive or interlaced format for each video field.

Table 629.  Interfaced Nibble Frame Format

The table shows the format specified for each value of this field.

Interlaced nibble Frame format
0 Progressive frame, deinterlaced from an F0 field
1 Progressive frame, deinterlaced from an F1 field
2 Progressive frame
3 Progressive frame
4 Progressive frame, deinterlaced from an F0 field
5 Progressive frame, deinterlaced from an F1 field
6 Progressive frame
7 Progressive frame
8 Interlaced F0 field, paired with the F1 field preceding it
9 Interlaced F0 field, paired with the F1 field following it
10 Interlaced F0 field, pairing unknown
11 Interlaced F0 field, pairing none
12 Interlaced F1 field, paired with the F0 field following it
13 Interlaced F1 field, paired with the F0 field preceding it
14 Interlaced F1 field, pairing unknown
15 Interlaced F1 field, pairing none

By default, the IP passes through fields preceded by image information packets that specify interlaced unaltered. The IP converts progressive frames to an alternating sequence of F0 and F1 fields. However, if a progressive frame has been created as a result of deinterlacing original interlaced content, you may want the interlacer to restore this original interlaced content. Interlace nibble values 0, 1, 4 and 5 allow a system to communicate the original interlaced format of a progressive frame to the interlacer so that this process can be reliably implemented.

If you do not want the interlacer to process any original interlaced history for the progressive frames, the IP does not preserve the original sequence of alternating F0 and F1. For example, if the applies frame fate conversion to progressive frames. You can set a parameter for this feature if you do not turn on Memory-mapped control interface via the register map, or via a register map setting if Memory-mapped control interface is on. This feature is only available when using the full variant of the Intel FPGA Streaming Video protocol as image information packets make it work. Image information packets are not available with the lite variant.