Video and Vision Processing Suite IP User Guide

ID 683329
Date 3/30/2025
Public

Visible to Intel only — GUID: ipf1697540976645

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

54.5. White Balance Correction IP 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_wbc_regs.h

Include file: intel_vvp_wbc.h

Table 1164.   White Balance Correction IP Software API
Name Description
intel_vvp_wbc_init Initialize an IP instance
intel_vvp_core_* Accessors defined in Video and Vision Processing IPs Software Programming Model
intel_vvp_wbc_get_lite_mode Returns if Lite mode is on
intel_vvp_wbc_get_debug_enabled Returns if Debug features is on
intel_vvp_wbc_get_bits_per_sample_in Returns the number of bits per color sample for the streaming input interface
intel_vvp_wbc_get_bits_per_sample_out Returns the number of bits per color sample value for the streaming output interface
intel_vvp_wbc_get_num_color_planes_in Returns the number of color planes of the streaming input interface
intel_vvp_wbc_get_num_color_planes_out Returns the number of color planes of the streaming output interface
intel_vvp_wbc_get_pixels_in_parallel Returns the pixels in parallel of the streaming input and output interfaces
intel_vvp_wbc_get_max_width Returns the maximum number of pixels that the IP supports on the horizontal dimension of an image or video frame
intel_vvp_wbc_get_max_height Returns the maximum number of pixels that the IP supports on the vertical dimension of an image or video frame
intel_vvp_wbc_is_running Reads if the IP is running
intel_vvp_wbc_commit_is_pending Reads if the IP has uncommitted writes
intel_vvp_wbc_get_status Reads the status register
intel_vvp_wbc_get_frame_stats Reads the frame statistics register
intel_vvp_wbc_commit Commit pending writes
intel_vvp_wbc_get_bypass Reads the bypass bit from the status register
intel_vvp_wbc_set_bypass Writes the bypass bit of the status register
intel_vvp_wbc_get_cfa_phase Reads the color filter array phase field from the status register
intel_vvp_wbc_set_cfa_phase Writes the color filter array phase field of the status register
intel_vvp_wbc_get_cfa_00_color_scaler Reads the color scaler register associated with the color filter phase 00
intel_vvp_wbc_set_cfa_00_color_scaler Writes the color scaler register associated with the color filter phase 00
intel_vvp_wbc_get_cfa_01_color_scaler Reads the color scaler register associated with the color filter phase 01
intel_vvp_wbc_set_cfa_01_color_scaler Writes the color scaler register associated with the color filter phase 01
intel_vvp_wbc_get_cfa_10_color_scaler Reads the color scaler register associated with the color filter phase 10
intel_vvp_wbc_set_cfa_10_color_scaler Writes the color scaler register associated with the color filter phase 10
intel_vvp_wbc_get_cfa_11_color_scaler Reads the color scaler register associated with the color filter phase 11
intel_vvp_wbc_set_cfa_11_color_scaler Writes the color scaler register associated with the color filter phase 11

intel_vvp_wbc_init

Prototype
                    int intel_vvp_wbc_init(intel_vvp_wbc_instance* instance, intel_vvp_core_base base);
                
Description

Initialize an IP 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_wbc_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 an error

kIntelVvpCoreInstanceErr if the instance is a null pointer

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 expected product ID (0x017A)

kIntelVvpWbcRegMapVersionErr if the register map is not supported

intel_vvp_wbc_get_lite_mode

Prototype
                    bool intel_vvp_wbc_get_lite_mode(intel_vvp_wbc_instance* instance);
                
Description

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

Arguments

instance - pointer to the intel_vvp_wbc_instance software driver instance structure

Returns

true if the IP is parameterized in lite mode

intel_vvp_wbc_get_debug_enabled

Prototype
                    bool intel_vvp_wbc_get_debug_enabled(intel_vvp_wbc_instance* instance);
                
Description

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

Arguments

instance - pointer to the intel_vvp_wbc_instance software driver instance structure

Returns

true if the IP is parameterized with debug features enabled

intel_vvp_wbc_get_bits_per_sample_in

Prototype
                    uint8_t intel_vvp_wbc_get_bits_per_sample_in(intel_vvp_wbc_instance* instance);
                
Description

Returns the value of the BPS_IN register. The instance must be a valid intel_vvp_wbc_instance fully initialized.

Arguments

instance - pointer to the intel_vvp_wbc_instance software driver instance structure

Returns

the input bits per color sample parameter used to generate the IP

intel_vvp_wbc_get_bits_per_sample_out

Prototype
                    uint8_t intel_vvp_wbc_get_bits_per_sample_out(intel_vvp_wbc_instance* instance);
                
Description

Returns the value of the BPS_OUT register. The instance must be a valid intel_vvp_wbc_instance fully initialized.

Arguments

instance - pointer to the intel_vvp_wbc_instance software driver instance structure

Returns

the output bits per color sample parameter used to generate the IP

intel_vvp_wbc_get_num_color_planes_in

Prototype
                    uint8_t intel_vvp_wbc_get_num_color_planes_in(intel_vvp_wbc_instance* instance);
                
Description

Returns the value of the NUM_COLOR_IN register. The instance must be a valid intel_vvp_wbc_instance fully initialized.

Arguments

instance - pointer to the intel_vvp_wbc_instance software driver instance structure

Returns

the input number of color planes parameter used to generate the IP

intel_vvp_wbc_get_num_color_planes_out

Prototype
                    uint8_t intel_vvp_wbc_get_num_color_planes_out(intel_vvp_wbc_instance* instance);
                
Description

Returns the value of the NUM_COLOR_OUT register. The instance must be a valid intel_vvp_wbc_instance fully initialized.

Arguments

instance - pointer to the intel_vvp_wbc_instance software driver instance structure

Returns

the output number of color planes parameter used to generate the IP

intel_vvp_wbc_get_pixels_in_parallel

Prototype
                    uint8_t intel_vvp_wbc_get_pixels_in_parallel(intel_vvp_wbc_instance* instance);
                
Description

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

Arguments

instance - pointer to the intel_vvp_wbc_instance software driver instance structure

Returns

the pixels in parallel parameter used to generate the IP

intel_vvp_wbc_get_max_width

Prototype
                    uint32_t intel_vvp_wbc_get_max_width(intel_vvp_wbc_instance* instance);
                
Description

Returns the value of the MAX_WIDTH register. The instance must be a valid intel_vvp_wbc_instance fully initialized.

Arguments

instance - pointer to the intel_vvp_wbc_instance software driver instance structure

Returns

the maximum field width parameter used to generate the IP

intel_vvp_wbc_get_max_height

Prototype
                    uint32_t intel_vvp_wbc_get_max_height(intel_vvp_wbc_instance* instance);
                
Description

Returns the value of the MAX_HEIGHT register. The instance must be a valid intel_vvp_wbc_instance fully initialized.

Arguments

instance - pointer to the intel_vvp_wbc_instance software driver instance structure

Returns

the maximum field height parameter used to generate the IP

intel_vvp_wbc_is_running

Prototype
                    bool intel_vvp_wbc_is_running(intel_vvp_wbc_instance* instance);
                
Description

Returns the value of the IP Running bit from the STATUS register. The instance must be a valid intel_vvp_wbc_instance fully initialized.

Arguments

instance - pointer to the intel_vvp_wbc_instance software driver instance structure

Returns

the running bit from the status register

intel_vvp_wbc_commit_is_pending

Prototype
                    bool intel_vvp_wbc_commit_is_pending(intel_vvp_wbc_instance* instance);
                
Description

Returns the value of the commit pending bit from the STATUS register. The instance must be a valid intel_vvp_wbc_instance fully initialized.

Arguments

instance - pointer to the intel_vvp_wbc_instance software driver instance structure

Returns

true if the agent interface has pending writes from a previous commit request

intel_vvp_wbc_get_status

Prototype
                    uint32_t intel_vvp_wbc_get_status(intel_vvp_wbc_instance* instance);
                
Description

Returns the value of the STATUS register. The instance must be a valid intel_vvp_wbc_instance fully initialized.

Arguments

instance - pointer to the intel_vvp_wbc_instance software driver instance structure

Returns

the value of the status register

intel_vvp_wbc_get_frame_stats

Prototype
                    int intel_vvp_wbc_get_frame_stats(intel_vvp_wbc_instance* instance, uint32_t* stats_out);
                
Description

Reads the value of the FRAME_STATS register. The instance must be a valid intel_vvp_wbc_instance fully initialized.

Arguments

instance - pointer to the intel_vvp_wbc_instance software driver instance structure

stats_out - pointer of a variable to return the statistics register value

Returns

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

kIntelVvpCoreInstanceErr if the instance is a null pointer

kIntelVvpWbcPointerErr if stats_out is a null pointer

intel_vvp_wbc_commit

Prototype
                    int intel_vvp_wbc_commit(intel_vvp_wbc_instance* instance);
                
Description

Commits all pending writes before processing the next field. The instance must be a valid intel_vvp_wbc_instance fully initialized.

Arguments

instance - pointer to the intel_vvp_wbc_instance software driver instance structure

Returns

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

kIntelVvpCoreInstanceErr if the instance is a null pointer

intel_vvp_wbc_get_bypass

Prototype
                    bool intel_vvp_wbc_get_bypass(intel_vvp_wbc_instance* instance);
                
Description

Returns the value of the bypass bit from the CONTROL register. The instance must be a valid intel_vvp_wbc_instance fully initialized.

Arguments

instance - pointer to the intel_vvp_wbc_instance software driver instance structure

Returns

the value of the bypass bit form the control register

intel_vvp_wbc_set_bypass

Prototype
                    int intel_vvp_wbc_set_bypass(intel_vvp_wbc_instance* instance, bool bypass);
                
Description

Writes to the bypass bit of the CONTROL register. The instance must be a valid intel_vvp_wbc_instance fully initialized.

Arguments

instance - pointer to the intel_vvp_wbc_instance software driver instance structure

bypass - new value of the bypass bit

Returns

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

kIntelVvpCoreInstanceErr if the instance is a null pointer

kIntelVvpWbcCommitPendingErr if a previous commit request is pending

intel_vvp_wbc_get_cfa_phase

Prototype
                    uint8_t intel_vvp_wbc_get_cfa_phase(intel_vvp_wbc_instance* instance);
                
Description

Returns the value of the color filter array phase field from the CONTROL register. The instance must be a valid intel_vvp_wbc_instance fully initialized.

Arguments

instance - pointer to the intel_vvp_wbc_instance software driver instance structure

Returns

the value of the color filter array phase field form the control register

intel_vvp_wbc_set_cfa_phase

Prototype
                    int intel_vvp_wbc_set_cfa_phase(intel_vvp_wbc_instance* instance, uint8_t cfa_phase);
                
Description

Writes to the color filter array phase field of the CONTROL register. The instance must be a valid intel_vvp_wbc_instance fully initialized.

Arguments

instance - pointer to the intel_vvp_wbc_instance software driver instance structure

cfa_phase - new value of the color filter array phase field

Returns

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

kIntelVvpCoreInstanceErr if the instance is a null pointer

kIntelVvpWbcValueErr if the value of cfa_phase is out of range

kIntelVvpWbcCommitPendingErr if a previous commit request is pending

intel_vvp_wbc_get_cfa_00_color_scaler

Prototype
                    uint32_t intel_vvp_wbc_get_cfa_00_color_scaler(intel_vvp_wbc_instance *instance);
                
Description

Returns the color scaler register associated with the color filter phase 00. The instance must be a valid intel_vvp_wbc_instance fully initialized.

Arguments

instance - pointer to the intel_vvp_wbc_instance software driver instance structure

Returns

the value of the color scaler register associated with the color filter phase 00

intel_vvp_wbc_set_cfa_00_color_scaler

Prototype
                    int intel_vvp_wbc_set_cfa_00_color_scaler(intel_vvp_wbc_instance* instance, uint32_t scaler);
                
Description

Writes to the color scaler register associated with the color filter phase 00. The instance must be a valid intel_vvp_wbc_instance fully initialized.

Arguments

instance - pointer to the intel_vvp_wbc_instance software driver instance structure

scaler - new value of the color scaler register associated with the color filter phase 00

Returns

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

kIntelVvpCoreInstanceErr if the instance is a null pointer

kIntelVvpWbcValueErr if the value of scaler is out of range

kIntelVvpWbcCommitPendingErr if a previous commit request is pending

intel_vvp_wbc_get_cfa_01_color_scaler

Prototype
                    uint32_t intel_vvp_wbc_get_cfa_01_color_scaler(intel_vvp_wbc_instance *instance);
                
Description

Returns the color scaler register associated with the color filter phase 01. The instance must be a valid intel_vvp_wbc_instance fully initialized.

Arguments

instance - pointer to the intel_vvp_wbc_instance software driver instance structure

Returns

the value of the color scaler register associated with the color filter phase 01

intel_vvp_wbc_set_cfa_01_color_scaler

Prototype
                    int intel_vvp_wbc_set_cfa_01_color_scaler(intel_vvp_wbc_instance* instance, uint32_t scaler);
                
Description

Writes to the color scaler register associated with the color filter phase 01. The instance must be a valid intel_vvp_wbc_instance fully initialized.

Arguments

instance - pointer to the intel_vvp_wbc_instance software driver instance structure

scaler - new value of the color scaler register associated with the color filter phase 01

Returns

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

kIntelVvpCoreInstanceErr if the instance is a null pointer

kIntelVvpWbcValueErr if the value of scaler is out of range

kIntelVvpWbcCommitPendingErr if a previous commit request is pending

intel_vvp_wbc_get_cfa_10_color_scaler

Prototype
                    uint32_t intel_vvp_wbc_get_cfa_10_color_scaler(intel_vvp_wbc_instance *instance);
                
Description

Returns the color scaler register associated with the color filter phase 10. The instance must be a valid intel_vvp_wbc_instance fully initialized.

Arguments

instance - pointer to the intel_vvp_wbc_instance software driver instance structure

Returns

the value of the color scaler register associated with the color filter phase 10

intel_vvp_wbc_set_cfa_10_color_scaler

Prototype
                    int intel_vvp_wbc_set_cfa_10_color_scaler(intel_vvp_wbc_instance* instance, uint32_t scaler);
                
Description

Writes to the color scaler register associated with the color filter phase 10. The instance must be a valid intel_vvp_wbc_instance fully initialized.

Arguments

instance - pointer to the intel_vvp_wbc_instance software driver instance structure

scaler - new value of the color scaler register associated with the color filter phase 10

Returns

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

kIntelVvpCoreInstanceErr if the instance is a null pointer

kIntelVvpWbcValueErr if the value of scaler is out of range

kIntelVvpWbcCommitPendingErr if a previous commit request is pending

intel_vvp_wbc_get_cfa_11_color_scaler

Prototype
                    uint32_t intel_vvp_wbc_get_cfa_11_color_scaler(intel_vvp_wbc_instance *instance);
                
Description

Returns the color scaler register associated with the color filter phase 11. The instance must be a valid intel_vvp_wbc_instance fully initialized.

Arguments

instance - pointer to the intel_vvp_wbc_instance software driver instance structure

Returns

the value of the color scaler register associated with the color filter phase 11

intel_vvp_wbc_set_cfa_11_color_scaler

Prototype
                    int intel_vvp_wbc_set_cfa_11_color_scaler(intel_vvp_wbc_instance* instance, uint32_t scaler);
                
Description

Writes to the color scaler register associated with the color filter phase 11. The instance must be a valid intel_vvp_wbc_instance fully initialized.

Arguments

instance - pointer to the intel_vvp_wbc_instance software driver instance structure

scaler - new value of the color scaler register associated with the color filter phase 11

Returns

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

kIntelVvpCoreInstanceErr if the instance is a null pointer

kIntelVvpWbcValueErr if the value of scaler is out of range

kIntelVvpWbcCommitPendingErr if a previous commit request is pending