Video and Vision Processing Suite IP User Guide

ID 683329
Date 3/30/2025
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 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

46.5. Video and Vision Monitor Software API

The IP includes software for run-time control. The IP does not fit any of the generic device models provided by the Nios II HAL and it exposes a set of dedicated accessors to the control and status registers. The IP driver structure inherits the base driver structure so all common methods defined in Video and Vision Processing IPs Software API are applicable.

Register definition header file: intel_vvp_snoop_regs.h

Include file: intel_vvp_snoop.h

Table 895.  Video and Vision Monitor IP Software API
Name Description
intel_vvp_snoop_init Initialize the Video and Vision Monitor instance
intel_vvp_core_* Accessors defined in Video and Vision Processing IPs Software Programming Model . Writable when Lite is on. Readable when Lite is off and Debug features is on.
intel_vvp_snoop_get_lite_mode Returns if Lite mode is on
intel_vvp_snoop_get_debug_enabled Returns if Debug features is on
intel_vvp_snoop_get_pixels_in_parallel Returns the number of pixels streamed in parallel
intel_vvp_snoop_is_running Returns if the IP is currently processing video data
intel_vvp_snoop_get_status Reads the status register
intel_vvp_snoop_get_num_good_fields Returns the numbers of valid fields processed
intel_vvp_snoop_get_num_broken_fields Returns the numbers of broken fields processed (full variant)
intel_vvp_snoop_get_num_mismatch_fields EReturns the numbers of invalid/mismatched fields processed
intel_vvp_snoop_get_last_num_lines Returns the number of lines in the last processed field
intel_vvp_snoop_get_last_min_width Returns the width of the smallest line in the last processed field
intel_vvp_snoop_get_last_max_width Returns the width of the largest line in the last processed field
intel_vvp_snoop_reset_counters Resets all debug counters

intel_vvp_snoop_init

Prototype
int intel_vvp_snoop_init(intel_vvp_snoop_instance *instance, intel_vvp_core_base base);
Description

Initializes a Video and Vision Monitor instance. The initialization stops early if the vendor ID or product ID read at the base address are not a match or if the register map version is not supported. Otherwise, the function proceeds to read and store the IP compile-time parameterization. The instance is not fully initialized and the application should not use it further if returning a non-zero error code.

Arguments

instance - pointer to the intel_vvp_snoop_instance software driver instance structure

base - base address of the register map

Returns

kIntelVvpCoreOk (0) in case of success, a negative error code in case of error

kIntelVvpCoreVidErr if the vendor id of the core is not the IntelFPGA vendor ID (0x6AF7).

kIntelVvpCorePidErr if the product_id does not match with the Video and Vision Monitor product ID

kIntelVvpCoreInstanceErr if the instance is a null pointer

kIntelVvpSnoopRegMapVersionErr if the register map is not supported

intel_vvp_snoop_get_lite_mode

Prototype
bool intel_vvp_snoop_get_lite_mode(intel_vvp_snoop_instance *instance);
Description

Returns the value of the LITE_MODE register. The instance must be a valid intel_vvp_snoop_instance fully initialized

Arguments

instance - pointer to the intel_vvp_snoop_instance software driver instance structure

Returns

true if the IP is parameterized in lite mode

intel_vvp_snoop_get_debug_enabled

Prototype
 bool intel_vvp_snoop_get_debug_enabled(intel_vvp_snoop_instance *instance);
Description

Returns the value of the DEBUG_ENABLED register. The instance must be a valid intel_vvp_snoop_instance fully initialized.

Arguments

instance - pointer to the intel_vvp_snoop_instance software driver instance structure

Returns

true if the IP is parameterized with debug features enabled

intel_vvp_snoop_get_pixels_in_parallel

Prototype
 uint8_t intel_vvp_snoop_get_pixels_in_parallel(intel_vvp_snoop_instance *instance);
Description

Returns the value of the PIXELS_IN_PARALLEL register. The instance must be a valid intel_vvp_snoop_instance fully initialized.

Arguments

instance - pointer to the intel_vvp_snoop_instance software driver instance structure

Returns

the number of pixels streamed in parallel in the monitored Video and Vision stream interface

intel_vvp_snoop_is_running

Prototype
 bool intel_vvp_snoop_is_running(intel_vvp_snoop_instance* instance);
Description

Reads and returns the running bit of the STATUS register. The instance must be a valid intel_vvp_snoop_instance fully initialized.

Arguments

instance - pointer to the intel_vvp_snoop_instance software driver instance structure

Returns

True is the IP is currently receiving/storing an input field, false when between two input fields

intel_vvp_snoop_get_status

Prototype
 uint32_t intel_vvp_snoop_get_status(intel_vvp_snoop_instance* instance);
Description

Reads the STATUS register. The instance must be a valid intel_vvp_snoop_instance fully initialized.

Arguments

instance - pointer to the intel_vvp_snoop_instance software driver instance structure

Returns

The content of the STATUS register

intel_vvp_snoop_get_num_good_fields

Prototype
 uint16_t intel_vvp_snoop_get_num_good_fields(intel_vvp_snoop_instance* instance);
Description

Reads the NUM_GOOD_FIELDS register. The instance must be a valid intel_vvp_snoop_instance fully initialized.

Arguments

instance - pointer to the intel_vvp_snoop_instance software driver instance structure

Returns

the number of valid fields processed so far

intel_vvp_snoop_get_num_broken_fields

Prototype
 uint16_t intel_vvp_snoop_get_num_broken_fields(intel_vvp_snoop_instance *instance);
Description

Reads the NUM_BROKEN_FIELDS register. The instance must be a valid intel_vvp_snoop_instance fully initialized and configured in lite variant.

Arguments

instance - pointer to the intel_vvp_snoop_instance software driver instance structure

Returns

the number of broken fields processed so far (counted using the broken flag in EOF packets in full variant)

intel_vvp_snoop_get_num_mismatch_fields

Prototype
 uint16_t intel_vvp_snoop_get_num_mismatch_fields(intel_vvp_snoop_instance* instance);
Description

Reads the NUM_MISMATCH_FIELDS register. The instance must be a valid intel_vvp_snoop_instance fully initialized

Arguments

instance - pointer to the intel_vvp_snoop_instance software driver instance structure

Returns

the number of invalid fields processed so far, counted by looking for discrepencies between the image information and the number of pixels/lines received

intel_vvp_snoop_get_last_num_lines

Prototype
 uint32_t intel_vvp_snoop_get_last_num_lines(intel_vvp_snoop_instance *instance)
Description

Reads the LAST_NUM_LINES register. The instance must be a valid intel_vvp_snoop_instance fully initialized

Arguments

instance - pointer to the intel_vvp_snoop_instance software driver instance structure

Returns

the number of lines in the last processed field

intel_vvp_snoop_get_last_min_width

Prototype
uint32_t intel_vvp_snoop_get_last_min_width(intel_vvp_snoop_instance *instance)
Description

Reads the LAST_MIN_WIDTH register. The instance must be a valid intel_vvp_snoop_instance fully initialized

Arguments

instance - pointer to the intel_vvp_snoop_instance software driver instance structure

Returns

the width of the smallest line in the last processed field

intel_vvp_snoop_get_last_max_width

Prototype
 uint32_t intel_vvp_snoop_get_last_max_width(intel_vvp_snoop_instance *instance)
Description

Reads the LAST_MAX_WIDTH register. The instance must be a valid intel_vvp_snoop_instance fully initialized

Arguments

instance - pointer to the intel_vvp_snoop_instance software driver instance structure

Returns

the width of the largest line in the last processed field

intel_vvp_snoop_reset_counters

Prototype
 int intel_vvp_snoop_reset_counters(intel_vvp_snoop_instance *instance)
Description

Resets all debug counters to zero

Arguments

instance - pointer to the intel_vvp_snoop_instance software driver instance structure

Returns

kIntelVvpCoreOk for success, negative error code in case of failures

kIntelVvpCoreInstanceErr if the instance is invalid