Video and Vision Processing Suite Intel® FPGA IP User Guide

ID 683329
Date 4/01/2024
Public
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

3.5. Avalon Streaming Video Protocol Versus Intel FPGA Streaming Video Protocol

Intel offers IPs to convert between the two protocols. This topic compares the differences between control and data packets from the Avalon Streaming Video protocol to metapackets and video packets from the Intel Streaming Video Protocol.

Control and Image Information Packets

Figure 7. Control Packets for Both ProtocolsThe Avalon streaming video protocol has a ready latency of 1. The figure shows a transition a to b where the first valid cycle of the packet occurs in cycle 2, one clock cycle after the sink raises its ready. The Intel FPGA streaming video protocol has a ready latency of 0.

The Avalon streaming video protocol indicates control packets with the value 0xf in the low nibble of the first beat of the transaction. The control packet payload is then packed over subsequent beats into the low nibbles of each byte, across the whole width of the data bus. The Intel FPGA streaming video protocol indicates image information packets by setting tuser[1] and 0x0 in the low 5 bits of the first beat. The protocol uses the remaining 11 bits of the first beat and the low 16 bits of subsequent beats to pack the remainder of the image information control packet.

Avalon streaming video carries data for the width field of the control packets in 4 nibbles spread across multiple bytes and often over multiple beats on the bus (w3:w0 in the figure). The Intel FPGA streaming video protocol always contains the 16 width field bits in the second beat of the transaction (w3:w0 in cycle 3 in the figure). Both protocols process the height field in these ways.

Interlace nibble codes have the same semantics in both protocols. Avalon streaming video carries interface nibble codes in the low nibble of the last byte of the packet. Intel FPGA streaming video packs them in positions 8 down to 5 of the first beat of the packet.

The Avalon streaming video protocol makes use of the Avalon streaming empty signal to indicate any empty symbols in the last beat. The Intel FPGA streaming video protocol does not use the AXI4-Stream TKEEP or TSRB signals.

Data packets

Data packets in the Avalon streaming video protocol represent one entire field or frame of video. The Intel FPGA streaming video protocol transports each line of video as individual data packet. Data packets are also ready latency 1 in the Avalon streaming video protocol.

The protocols have other differences for pixel packing and empty symbols. The protocol converter IP manages these differences, so you do not need to understand the difference between the two standards.