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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
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
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
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
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24.8. Warp Lite IP API
The API simplifies programming the control registers.
The recommended sequence at startup is:
set_off_screen_R(<unsigned int> value);
set_off_screen_G(<unsigned int> value);
set_off_screen_B(<unsigned int> value);
gen_coefficients(<float> distortion, <bool> top_correction, <bool> h_flip, <int> width, <int> height)
apply_coefficients()
start()
The start() function (and its stop() counterpart) are inherited from the VipCore class.
The sequence to change coefficients in use is simply
gen_coefficients(<float> distortion, <bool> top_correction, <bool> h_flip, <int> width, <int> height)
apply_coefficients()
Name | Description |
---|---|
gen_coefficients | Generates a valid set of coefficients for the control registers from the input arguments. Write the arguments to the control registers using the apply_coefficients() function. If the input arguments generate an invalid coefficient set, the coefficient set is left unmodified and a terminal message is displayed. If you call the apply_coefficients() function, the IP applies the last valid set and you see no change in IP behavior. |
apply_coefficients | Produces a coefficient set generated by the gen_coefficients() function to the control registers. If you never call the gen_coefficients() function, the IP produces the default passthrough coefficients. If you calll the gen_coefficients() function but it fails, the IP produces the previous valid values. If you set no such values, the IP produces the default passthrough coefficients. |
set_offscreen_R | Sets the value of the RGB[R]/YCbCr[Y] component for the IP to use for offscreen pixels. |
set_offscreen_G | Sets the value of the RGB[G]/YCbCr[Cb] component for the IP to use for offscreen pixels. |
set_offscreen_B | Sets the value of the RGB[B]/YCbCr[Cr] component for the IP to use for offscreen pixels. |
Start | Sets the GO bit of the control register. |
Stop | Clears the GO bit of the control register. |
gen_coefficients Function
- Arguments
- float distortion_ratio: Amount of distortion to apply from 0 to 0.3
- bool top_correction: Select edge to which vertical keystone applies. Top(true) or bottom (false).
- bool h_flip: Select whether to apply horizontal flip (true) or not (false)
- int width: Width of image to warp. int height: Height of image to warp.
- Return Value
- Void
- Example
- gen_coefficients(0.15, true, false, 1920,1080); Specify a top edge keystone correction of 15% to HD frames
- gen_coefficients(0,false,true,720,576);Apply a horizontal flip without keystone to SD frames.
- gen_coefficients(0.3,false,true,1280,720); Apply a bottom edge keystone of 30% with horizontal flip to 1280x720 frames.
apply_coefficients Function
- Arguments
- Void
- Return Value
- Void
- Example
- apply_coefficients();
set_offscreen_R Function
- Arguments
- Int: Value
- Return Value
- Void
- Example
- Set_offscreen_R(255); Set the RGB R component to full red for 8 bit color planes.
set_offscreen_G Function
- Arguments
- Int: Value
- Return Value
- Void
- Example
- Set_offscreen_G(255); Set the RGB G component to full green for 8 bit color planes.
set_offscreen_B Function
- Arguments
- Int: Value
- Return Value
- Void
- Example
- Set_offscreen_B(255); Set the RGB B component to full blue for 8 bit color planes.
Start Function
- Arguments
- Void
- Return Value
- Void
- Example
- stop();
Start Function
- Arguments
- Void
- Return Value
- Void
- Example
- stop();