Video and Image Processing Suite User Guide

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Date 2/12/2021
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Document Table of Contents
Document Table of Contents x
1. About the Video and Image Processing Suite 2. Avalon Streaming Video 3. Clocked Video 4. VIP Run-Time Control 5. Getting Started 6. VIP Connectivity Interfacing 7. Clocked Video Interface IPs 8. 2D FIR II IP Core 9. Mixer II IP Core 10. Clipper II IP Core 11. Color Plane Sequencer II IP Core 12. Color Space Converter II IP Core 13. Chroma Resampler II IP Core 14. Control Synchronizer IP Core 15. Deinterlacer II IP Core 16. Frame Buffer II IP Core 17. Gamma Corrector II IP Core 18. Configurable Guard Bands IP Core 19. Interlacer II IP Core 20. Scaler II IP Core 21. Switch II IP Core 22. Test Pattern Generator II IP Core 23. Trace System IP Core 24. Warp Lite Intel FPGA IP 25. Avalon-ST Video Stream Cleaner IP Core 26. Avalon-ST Video Monitor IP Core 27. VIP IP Core Software Control 28. Security Considerations 29. Video and Image Processing Suite User Guide Archives 30. Document Revision History for the Video and Image Processing Suite User Guide A. Avalon-ST Video Verification IP Suite
1. About the Video and Image Processing Suite x
1.1. Release Information 1.2. Device Family Support 1.3. Latency 1.4. In-System Performance and Resource Guidance 1.5. Stall Behavior and Error Recovery
2. Avalon Streaming Video x
2.1. Avalon-ST Video Configuration Types 2.2. Avalon-ST Video Packet Types 2.3. Avalon-ST Video Operation 2.4. Avalon-ST Video Error Cases
2.2. Avalon-ST Video Packet Types x
2.2.1. Avalon-ST Video Control Packets 2.2.2. Avalon-ST Video Video Packets 2.2.3. Avalon-ST Video User Packets
3. Clocked Video x
3.1. Video Formats
3.1. Video Formats x
3.1.1. Embedded Synchronization Format: Clocked Video Output 3.1.2. Embedded Synchronization Format: Clocked Video Input 3.1.3. Separate Synchronization Format 3.1.4. Video Locked Signal 3.1.5. Clocked Video and 4:2:0 Chroma Subsampling
3.1.1. Embedded Synchronization Format: Clocked Video Output x
3.1.1.1. Clocked Video Output and SDI II TX Interface
3.1.5. Clocked Video and 4:2:0 Chroma Subsampling x
3.1.5.1. Avalon-ST Video Control Packets for 4:2:0 Video 3.1.5.2. 4:2:0 Clocked Video 3.1.5.3. Resampling 4:2:0
5. Getting Started x
5.1. IP Catalog and VIP Parameter Editor 5.2. Installing and Licensing IP Cores
5.1. IP Catalog and VIP Parameter Editor x
5.1.1. Specifying IP Core Parameters and Options
5.2. Installing and Licensing IP Cores x
5.2.1. Intel® FPGA IP Evaluation Mode
6. VIP Connectivity Interfacing x
6.1. Avalon-ST Color Space Mappings
6.1. Avalon-ST Color Space Mappings x
6.1.1. Interfacing with High-Definition Multimedia Interface (HDMI) 6.1.2. Interfacing with DisplayPort 6.1.3. Interfacing with Serial Digital Interface (SDI) 6.1.4. Unsupported SDI Mappings 6.1.5. 12G-SDI
6.1.5. 12G-SDI x
6.1.5.1. 12G-SDI with Clocked Video Input II 6.1.5.2. 12G-SDI with Clocked Video Output II
7. Clocked Video Interface IPs x
7.1. Supported Features for Clocked Video Output II IP 7.2. Control Port 7.3. Clocked Video Input IP Format Detection 7.4. Clocked Video Output IP Video Modes 7.5. Clocked Video Output II Latency Mode 7.6. Generator Lock 7.7. Underflow and Overflow 7.8. Timing Constraints 7.9. Handling Ancillary Packets 7.10. Modules for Clocked Video Input II IP Core 7.11. Clocked Video Input II Signals, Parameters, and Registers 7.12. Clocked Video Output II Signals, Parameters, and Registers
7.3. Clocked Video Input IP Format Detection x
7.3.1. Format Detection in Clocked Video Input II 7.3.2. Interrupts
7.4. Clocked Video Output IP Video Modes x
7.4.1. Interrupts
7.11. Clocked Video Input II Signals, Parameters, and Registers x
7.11.1. Clocked Video Input II Interface Signals 7.11.2. Clocked Video Input II Parameter Settings 7.11.3. Clocked Video Input II Control Registers
7.12. Clocked Video Output II Signals, Parameters, and Registers x
7.12.1. Clocked Video Output II Interface Signals 7.12.2. Clocked Video Output II Parameter Settings 7.12.3. Clocked Video Output II Control Registers
8. 2D FIR II IP Core x
8.1. 2D FIR Filter Processing 8.2. 2D FIR Filter Precision 8.3. 2D FIR Coefficient Specification 8.4. 2D FIR Filter Symmetry 8.5. Result to Output Data Type Conversion 8.6. Edge-Adaptive Sharpen Mode 8.7. 2D FIR Filter Parameter Settings 8.8. 2D FIR Filter Control Registers
8.4. 2D FIR Filter Symmetry x
8.4.1. No Symmetry 8.4.2. Horizontal Symmetry 8.4.3. Vertical Symmetry 8.4.4. Horizontal and Vertical Symmetry 8.4.5. Diagonal Symmetry
8.6. Edge-Adaptive Sharpen Mode x
8.6.1. Edge Detection 8.6.2. Filtering 8.6.3. Precision
9. Mixer II IP Core x
9.1. Alpha Blending 9.2. Mixer II Parameter Settings 9.3. Mixer II Control Registers 9.4. Layer Mapping 9.5. Low-Latency Mode
10. Clipper II IP Core x
10.1. Clipper II Parameter Settings 10.2. Clipper II Control Registers
11. Color Plane Sequencer II IP Core x
11.1. Combining Color Patterns 11.2. Rearranging Color Patterns 11.3. Splitting and Duplicating 11.4. Handling of Subsampled Data 11.5. Handling of Non-Image Avalon-ST Packets 11.6. Color Plane Sequencer Parameter Settings
12. Color Space Converter II IP Core x
12.1. Input and Output Data Types 12.2. Color Space Conversion 12.3. Result of Output Data Type Conversion 12.4. Color Space Converter Parameter Settings 12.5. Color Space Conversion Control Registers
12.2. Color Space Conversion x
12.2.1. Predefined Conversions
13. Chroma Resampler II IP Core x
13.1. Chroma Resampler Algorithms 13.2. Chroma Resampler Parameter Settings 13.3. Chroma Resampler Control Registers
13.1. Chroma Resampler Algorithms x
13.1.1. Nearest Neighbor 13.1.2. Bilinear 13.1.3. Filtered
14. Control Synchronizer IP Core x
14.1. Using the Control Synchronizer IP Core 14.2. Control Synchronizer Parameter Settings 14.3. Control Synchronizer Control Registers
15. Deinterlacer II IP Core x
15.1. Deinterlacing Algorithm Options 15.2. Deinterlacing Algorithms 15.3. Run-time Control 15.4. Pass-Through Mode for Progressive Frames 15.5. Cadence Detection (Motion Adaptive Deinterlacing Only) 15.6. Avalon-MM Interface to Memory 15.7. Motion Adaptive Mode Bandwidth Requirements 15.8. Avalon-ST Video Support 15.9. 4K Video Passthrough Support 15.10. Behavior When Unexpected Fields are Received 15.11. Handling of Avalon-ST Video Control Packets 15.12. Deinterlacer II Parameter Settings 15.13. Deinterlacing Control Registers
15.2. Deinterlacing Algorithms x
15.2.1. Vertical Interpolation (Bob) 15.2.2. Field Weaving (Weave) 15.2.3. Motion Adaptive 15.2.4. Motion Adaptive High Quality (Sobel Edge Interpolation)
15.9. 4K Video Passthrough Support x
15.9.1. Approach A 15.9.2. Approach B
15.13. Deinterlacing Control Registers x
15.13.1. Scene Change Motion Multiplier Value 15.13.2. Tuning Motion Shift and Motion Scale Registers
16. Frame Buffer II IP Core x
16.1. Double Buffering 16.2. Triple Buffering 16.3. Locked Frame Rate Conversion 16.4. Handling of Avalon-ST Video Control Packets and User Packets 16.5. Frame Buffer Parameter Settings 16.6. Frame Buffer Application Examples 16.7. Frame Buffer Control Registers
16.3. Locked Frame Rate Conversion x
16.3.1. Converting Frame Rates
16.7. Frame Buffer Control Registers x
16.7.1. Frame Writer Only Mode 16.7.2. Frame Reader Only Mode 16.7.3. Memory Map for Frame Reader or Writer Configurations
17. Gamma Corrector II IP Core x
17.1. Gamma Corrector Parameter Settings 17.2. Gamma Corrector Control Registers
18. Configurable Guard Bands IP Core x
18.1. Guard Bands Parameter Settings 18.2. Configurable Guard Bands Control Registers
19. Interlacer II IP Core x
19.1. Interlacer Parameter Settings 19.2. Interlacer Control Registers
20. Scaler II IP Core x
20.1. Nearest Neighbor Algorithm 20.2. Bilinear Algorithm 20.3. Polyphase and Bicubic Algorithm 20.4. Edge-Adaptive Scaling Algorithm 20.5. Scaler II Parameter Settings 20.6. Scaler II Control Registers
20.2. Bilinear Algorithm x
20.2.1. Bilinear Algorithmic Description
20.3. Polyphase and Bicubic Algorithm x
20.3.1. Double-Buffering 20.3.2. Polyphase Algorithmic Description 20.3.3. Choosing and Loading Coefficients
21. Switch II IP Core x
21.1. Switch II Parameter Settings 21.2. Switch II Control Registers
22. Test Pattern Generator II IP Core x
22.1. Test Patterns 22.2. Output Subsampling and Color Space 22.3. Generation of Avalon-ST Video Control Packets and Run-Time Control 22.4. Test Pattern Generator II Parameter Settings 22.5. Test Pattern Generator II Control Registers
22.1. Test Patterns x
22.1.1. Color Bars 22.1.2. Grayscale Bars 22.1.3. Black and White Bars 22.1.4. SDI Pathological 22.1.5. Uniform Background
23. Trace System IP Core x
23.1. Trace System Parameter Settings 23.2. Trace System Signals 23.3. Operating the Trace System from System Console
23.3. Operating the Trace System from System Console x
23.3.1. Loading the Project and Connecting to the Hardware 23.3.2. Trace Within System Console 23.3.3. TCL Shell Commands
24. Warp Lite Intel FPGA IP x
24.1. Warp Lite IP Release Information 24.2. About Image Warping 24.3. About the Warp Lite Intel FPGA IP 24.4. Operating the Warp Lite IP 24.5. Warp Lite IP Parameters 24.6. Warp Lite IP Control Registers' Map 24.7. Warp Lite IP Line Store 24.8. Warp Lite IP API
24.3. About the Warp Lite Intel FPGA IP x
24.3.1. Warp Definition Equations 24.3.2. Resampling and Interpolation
24.3.1. Warp Definition Equations x
24.3.1.1. Transform Matrix and Keystone Region Corners 24.3.1.2. Horizontal Flip Equation
24.7. Warp Lite IP Line Store x
24.7.1. Line Store RAM Utilization 24.7.2. Buffer Ingress and Egress Overlap
25. Avalon-ST Video Stream Cleaner IP Core x
25.1. Avalon-ST Video Protocol 25.2. Repairing Non-Ideal and Error Cases 25.3. Avalon-ST Video Stream Cleaner Parameter Settings 25.4. Avalon-ST Video Stream Cleaner Control Registers
26. Avalon-ST Video Monitor IP Core x
26.1. Packet Visualization 26.2. Monitor Settings 26.3. Avalon-ST Video Monitor Parameter Settings 26.4. Avalon-ST Video Monitor Control Registers
27. VIP IP Core Software Control x
27.1. HAL Device Drivers for Nios II SBT
28. Security Considerations x
28.1. Using Avalon-ST Video Monitor Debug Tools 28.2. Configuring Memory Subsystems
A. Avalon-ST Video Verification IP Suite x
A.1. Avalon-ST Video Class Library A.2. Example Tests A.3. Complete Class Reference A.4. Data Format
A.2. Example Tests x
A.2.1. Generating the Testbench Netlist A.2.2. Running the Test in Intel® Quartus® Prime Standard Edition A.2.3. Running the Test in Intel® Quartus® Prime Pro Edition A.2.4. Viewing the Video File A.2.5. Verification Files A.2.6. Constrained Random Test
A.2.5. Verification Files x
A.2.5.1. bfm_drivers.sv A.2.5.2. nios_control_model.sv
A.3. Complete Class Reference x
A.3.1. c_av_st_video_control A.3.2. c_av_st_video_data A.3.3. c_av_st_video_file_io A.3.4. c_av_st_video_item A.3.5. c_av_st_video_source_sink_base A.3.6. c_av_st_video_sink_bfm_’SINK A.3.7. c_av_st_video_source_bfm_’SOURCE A.3.8. c_av_st_video_user_packet A.3.9. c_pixel A.3.10. av_mm_transaction A.3.11. av_mm_master_bfm_`MASTER_NAME A.3.12. av_mm_slave_bfm_`SLAVE_NAME A.3.13. av_mm_control_register A.3.14. av_mm_control_base
1. About the Video and Image Processing Suite
2. Avalon Streaming Video
3. Clocked Video
4. VIP Run-Time Control
5. Getting Started
6. VIP Connectivity Interfacing
7. Clocked Video Interface IPs
8. 2D FIR II IP Core
9. Mixer II IP Core
10. Clipper II IP Core
11. Color Plane Sequencer II IP Core
12. Color Space Converter II IP Core
13. Chroma Resampler II IP Core
14. Control Synchronizer IP Core
15. Deinterlacer II IP Core
16. Frame Buffer II IP Core
17. Gamma Corrector II IP Core
18. Configurable Guard Bands IP Core
19. Interlacer II IP Core
20. Scaler II IP Core
21. Switch II IP Core
22. Test Pattern Generator II IP Core
23. Trace System IP Core
24. Warp Lite Intel FPGA IP
25. Avalon-ST Video Stream Cleaner IP Core
26. Avalon-ST Video Monitor IP Core
27. VIP IP Core Software Control
28. Security Considerations
29. Video and Image Processing Suite User Guide Archives
30. Document Revision History for the Video and Image Processing Suite User Guide
A. Avalon-ST Video Verification IP Suite

20.3. Polyphase and Bicubic Algorithm

Polyphase and bicubic algorithms offer the best image quality, but use more resources than the other modes of the Scaler II.

The polyphase and bicubic algorithms allow scaling to be performed in such a way as to preserve sharp edges, but without losing the smooth interpolation effect on graduated areas. For down scaling, a long polyphase filter can reduce aliasing effects.

The bicubic and polyphase algorithms use different mathematics to derive their filter coefficients. The implementation of the bicubic algorithm is just the polyphase algorithm with four vertical and four horizontal taps. In the following discussion, all comments relating to the polyphase algorithm are applicable to the bicubic algorithm assuming 4×4 taps.

Figure 70. Polyphase Mode Scaler Block DiagramThe figure below shows the flow of data through an instance of the Scaler II in polyphase mode.
Data from multiple lines of the input image are assembled into line buffers–one for each vertical tap. These data are then fed into parallel multipliers, before summation and possible loss of precision. The results are gathered into registers–one for each horizontal tap. These are again multiplied and summed before precision loss down to the output data bit width.
Note: The progress of data through the taps (line buffer and register delays) and the coefficient values in the multiplication are controlled by logic that is not present in the diagram.

Consider the following for an instance of the polyphase scaler.

  • Nv = vertical taps
  • Nh = horizontal taps
  • Bdata = bit width of the data samples
  • Bv = bit width of the vertical coefficients
  • Bh = bit width of the horizontal coefficients
  • Pv = user-defined number of vertical phases for each coefficient set (must be a power of 2)
  • Ph = user-defined number of horizontal phases for each coefficient set (must be a power of 2)
  • Cv = number of vertical coefficient banks
  • Ch = number of horizontal coefficient banks

The total number of multipliers is Nv + Nh per channel in parallel.

The width of each vertical multiplier is max(Bdata, Bv )

The width of each horizontal multiplier is the maximum of the horizontal coefficient width, Bh, and the bit width of the horizontal kernel, Bkh .

The bit width of the horizontal kernel determines the precision of the results of vertical filtering and is user-configurable.

The memory requirement is Nv line-buffers plus vertical and horizontal coefficient banks. As in the nearest-neighbor and bilinear methods, each line buffer is the same size as one line from the clipped input image.

The vertical coefficient banks are stored in memory that is Bv bits wide and Pv ×Nv ×Cv words deep. The horizontal coefficient banks are stored in memory that is Bh ×Nh bits wide and Ph ×Ch words deep. For each coefficient type, the Intel® Quartus® Prime software maps these appropriately to physical on-chip RAM or logic elements as constrained by the width and depth requirements.

Note: If the horizontal and vertical coefficients are identical, they are stored in the horizontal memory (as defined above). If you turn on Share horizontal /vertical coefficients in the parameter editor, this setting is forced even when the coefficients are loaded at run time.
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