Xilinx Processor IP Library

Software Drivers

xrgb2ycrcb.c File Reference

Detailed Description

This file contains the implementation of the interface functions for RGB2YCRCB driver. Refer to the header file xrgb2ycrcb.h for more detailed information.

 MODIFICATION HISTORY:

 Ver   Who    Date     Changes
 ----- ------ -------- -------------------------------------------------------
 5.00a tb     02/27/12 Updated for RGB2YCRCB v5.00.a.
 7.0   adk    01/07/14 Changed the file name from "rgb2ycrcb.c" to
                       "xrgb2ycrcb.c".

                       Implemented the following functions:
                       XRgb2YCrCb_CfgInitialize, XRgb2YCrCb_EnableDbgByPass,
                       XRgb2YCrCb_IsDbgByPassEnabled,
                       XRgb2YCrCb_DisableDbgBypass,
                       XRgb2YCrCb_EnableDbgTestPattern,
                       XRgb2YCrCb_IsDbgTestPatternEnabled,
                       XRgb2YCrCb_DisableDbgTestPattern,
                       XRgb2YCrCb_GetVersion, XRgb2YCrCb_GetDbgFrameCount,
                       XRgb2YCrCb_GetDbgLineCount,
                       XRgb2YCrCb_GetDbgPixelCount, XRgb2YCrCb_Setup,
                       XRgb2YCrCb_SetActiveSize, XRgb2YCrCb_GetActiveSize,
                       XRgb2YCrCb_SetYMax, XRgb2YCrCb_GetYMax,
                       XRgb2YCrCb_SetYMin, XRgb2YCrCb_GetYMin,
                       XRgb2YCrCb_SetCbMax, XRgb2YCrCb_GetCbMax,
                       XRgb2YCrCb_SetCbMin, XRgb2YCrCb_GetCbMin,
                       XRgb2YCrCb_SetCrMax, XRgb2YCrCb_GetCrMax,
                       XRgb2YCrCb_SetCrMin, XRgb2YCrCb_GetCrMin,
                       XRgb2YCrCb_SetYOffset, XRgb2YCrCb_GetYOffset,
                       XRgb2YCrCb_SetCbOffset, XRgb2YCrCb_GetCbOffset,
                       XRgb2YCrCb_SetCrOffset, XRgb2YCrCb_GetCrOffset,
                       XRgb2YCrCb_SetCoefs, XRgb2YCrCb_GetCoefs,
                       XRgb2YCrCb_Select_Standard,
                       XRgb2YCrCb_Coefficient_Translation,
                       XRgb2YCrCb_Select_OutputRange.

#include "xrgb2ycrcb.h"

Functions

int XRgb2YCrCb_CfgInitialize (XRgb2YCrCb *InstancePtr, XRgb2YCrCb_Config *CfgPtr, u32 EffectiveAddr)
void XRgb2YCrCb_EnableDbgByPass (XRgb2YCrCb *InstancePtr)
int XRgb2YCrCb_IsDbgByPassEnabled (XRgb2YCrCb *InstancePtr)
void XRgb2YCrCb_DisableDbgBypass (XRgb2YCrCb *InstancePtr)
void XRgb2YCrCb_EnableDbgTestPattern (XRgb2YCrCb *InstancePtr)
int XRgb2YCrCb_IsDbgTestPatternEnabled (XRgb2YCrCb *InstancePtr)
void XRgb2YCrCb_DisableDbgTestPattern (XRgb2YCrCb *InstancePtr)
u32 XRgb2YCrCb_GetVersion (XRgb2YCrCb *InstancePtr)
u32 XRgb2YCrCb_GetDbgFrameCount (XRgb2YCrCb *InstancePtr)
u32 XRgb2YCrCb_GetDbgLineCount (XRgb2YCrCb *InstancePtr)
u32 XRgb2YCrCb_GetDbgPixelCount (XRgb2YCrCb *InstancePtr)
void XRgb2YCrCb_Setup (XRgb2YCrCb *InstancePtr)
void XRgb2YCrCb_SetActiveSize (XRgb2YCrCb *InstancePtr, u16 HSize, u16 VSize)
void XRgb2YCrCb_GetActiveSize (XRgb2YCrCb *InstancePtr, u16 *HSize, u16 *VSize)
void XRgb2YCrCb_SetYMax (XRgb2YCrCb *InstancePtr, u32 YMax)
u32 XRgb2YCrCb_GetYMax (XRgb2YCrCb *InstancePtr)
void XRgb2YCrCb_SetYMin (XRgb2YCrCb *InstancePtr, u32 YMin)
u32 XRgb2YCrCb_GetYMin (XRgb2YCrCb *InstancePtr)
void XRgb2YCrCb_SetCbMax (XRgb2YCrCb *InstancePtr, u32 CbMax)
u32 XRgb2YCrCb_GetCbMax (XRgb2YCrCb *InstancePtr)
void XRgb2YCrCb_SetCbMin (XRgb2YCrCb *InstancePtr, u32 CbMin)
u32 XRgb2YCrCb_GetCbMin (XRgb2YCrCb *InstancePtr)
void XRgb2YCrCb_SetCrMax (XRgb2YCrCb *InstancePtr, u32 CrMax)
u32 XRgb2YCrCb_GetCrMax (XRgb2YCrCb *InstancePtr)
void XRgb2YCrCb_SetCrMin (XRgb2YCrCb *InstancePtr, u32 CrMin)
u32 XRgb2YCrCb_GetCrMin (XRgb2YCrCb *InstancePtr)
void XRgb2YCrCb_SetYOffset (XRgb2YCrCb *InstancePtr, u32 YOffset)
u32 XRgb2YCrCb_GetYOffset (XRgb2YCrCb *InstancePtr)
void XRgb2YCrCb_SetCbOffset (XRgb2YCrCb *InstancePtr, u32 CbOffset)
u32 XRgb2YCrCb_GetCbOffset (XRgb2YCrCb *InstancePtr)
void XRgb2YCrCb_SetCrOffset (XRgb2YCrCb *InstancePtr, u32 CrOffset)
u32 XRgb2YCrCb_GetCrOffset (XRgb2YCrCb *InstancePtr)
void XRgb2YCrCb_SetCoefs (XRgb2YCrCb *InstancePtr, double ACoef, double BCoef, double CCoef, double DCoef)
void XRgb2YCrCb_GetCoefs (XRgb2YCrCb *InstancePtr, double *ACoef, double *BCoef, double *CCoef, double *DCoef)
void XRgb2YCrCb_Select_Standard (XRgb2YCrCb *InstancePtr, enum XRgb_Standards StandardSel, enum XRgb_OutputRanges InputRange, u32 DataWidth, struct XRgb2YCrCb_Coef_Inputs *CoefIn)
u32 XRgb2YCrCb_Coefficient_Translation (XRgb2YCrCb *InstancePtr, struct XRgb2YCrCb_Coef_Inputs *CoefIn, struct XRgb2YCrCb_Coef_Outputs *CoefOut, u32 DataWidth)
void XRgb2YCrCb_Select_OutputRange (XRgb2YCrCb *InstancePtr, enum XRgb_OutputRanges Range)

Function Documentation

int XRgb2YCrCb_CfgInitialize ( XRgb2YCrCb *  InstancePtr,
XRgb2YCrCb_Config *  CfgPtr,
u32  EffectiveAddr 
)

This function initializes the Rgb2YCrCb core. This function must be called prior to using the Rgb2YCrCb core. Initialization of the Rgb2YCrCb includes setting up the instance data and ensuring the hardware is in a quiescent state.

Parameters:
InstancePtr is a pointer to the XRgb2YCrCb instance.
CfgPtr is a reference to a structure containing information about a specific XRgb2YCrCb driver.
EffectiveAddr is the core base address in the virtual memory address space. The caller is responsible for keeping the address mapping from EffectiveAddr to the core physical base address unchanged once this function is invoked. Unexpected errors may occur if the address mapping changes after this function is called. If address translation is not used, pass in the physical address instead.
Returns:
- XST_SUCCESS if initialization was successful.
Note:
None.

u32 XRgb2YCrCb_Coefficient_Translation ( XRgb2YCrCb *  InstancePtr,
struct XRgb2YCrCb_Coef_Inputs *  CoefIn,
struct XRgb2YCrCb_Coef_Outputs *  CoefOut,
u32  DataWidth 
)

This function translates the XRgb2YCrCb_Coef_Inputs structure into the XRgb2YCrCb_Coef_Outputs structure that can be used to program the core's registers. The XRgb2YCrCb_Coef_Inputs structure uses the same values as the core's GUIs. The XRgb2YCrCb_Coef_Outputs structure uses the values that can be programmed into the core's registers.

Parameters:
InstancePtr is a pointer to the XRgb2YCrCb instance.
CoefIn specifies a pointer to a XRgb2YCrCb_Coef_Inputs structure to be translated.
CoefOut specifies a pointer to a XRgb2YCrCb_Coef_Outputs structure with translated values.
DataWidth specifies a valid range of [8,10,12,16] that needs to be set.
Returns:
RetVal, returns the 32-bit value with following bit information:
  • bit(0)= ACoef + BCoef > 1.0.
  • bit(1)= Y Offset outside data width range as [-2^Data_Width, (2^Data_Width)-1].
  • bit(2)= Cb Offset outside data width range as [-2^Data_Width, (2^Data_Width)-1].
  • bit(3)= Cr Offset outside data width range as [-2^Data_Width, (2^Data_Width)-1].
  • bit(4)= Y Max outside data width range as [0, (2^Data_Width)-1].
  • bit(5)= Y Min outside data width range as [0, (2^Data_Width)-1].
  • bit(6)= Cb Max outside data width range as [0, (2^Data_Width)-1].
  • bit(7)= Cb Min outside data width range as [0, (2^Data_Width)-1].
  • bit(8)= Cr Max outside data width range as [0, (2^Data_Width)-1].
  • bit(9)= Cr Min outside data width range as [0, (2^Data_Width)-1].
Note:
None.

void XRgb2YCrCb_DisableDbgBypass ( XRgb2YCrCb *  InstancePtr  ) 

This function disables Bypass mode.

Parameters:
InstancePtr is a pointer to the XRgb2YCrCb core instance to be worked on.
Returns:
None.
Note:
Debug functionality should be enabled.

void XRgb2YCrCb_DisableDbgTestPattern ( XRgb2YCrCb *  InstancePtr  ) 

This function disables debug test pattern mode.

Parameters:
InstancePtr is a pointer to the XRgb2YCrCb core instance to be worked on.
Returns:
None.
Note:
Debug functionality should be enabled.

void XRgb2YCrCb_EnableDbgByPass ( XRgb2YCrCb *  InstancePtr  ) 

This function sets the bypass bit of control register to switch the core to bypass mode if debug is enabled in the IP.

Parameters:
InstancePtr is a pointer to the XRgb2YCrCb instance.
Returns:
None.
Note:
Debug functionality should be enabled.

void XRgb2YCrCb_EnableDbgTestPattern ( XRgb2YCrCb *  InstancePtr  ) 

This function switches the core to test-pattern generator mode if debug feature is enabled.

Parameters:
InstancePtr is a pointer to the XRgb2YCrCb instance.
Returns:
None.
Note:
Debug functionality should be enabled.

void XRgb2YCrCb_GetActiveSize ( XRgb2YCrCb *  InstancePtr,
u16 *  HSize,
u16 *  VSize 
)

This function gets the active H/V sizes of the Rgb2YCrCb core from active size register.

Parameters:
InstancePtr is a pointer to the XRgb2YCrCb instance.
HSize is a pointer to 16-bit variable in which the number of Active Pixels per scanline is returned within the range [32, 7680].
VSize is a pointer to 16-bit variable in which the number of Active Lines per frame is returned within the range [32, 7680].
Returns:
None.
Note:
None.

u32 XRgb2YCrCb_GetCbMax ( XRgb2YCrCb *  InstancePtr  ) 

This function returns the maximum value on the Cb Chroma channel of the output.

Parameters:
InstancePtr is a pointer to the XRgb2YCrCb instance.
Returns:
CbMax, maximum value within range [0, 255] of the Cb Chroma Channel.
Note:
None.

u32 XRgb2YCrCb_GetCbMin ( XRgb2YCrCb *  InstancePtr  ) 

This function returns the minimum value on the Cb Chroma channel of the output.

Parameters:
InstancePtr is a pointer to the XRgb2YCrCb instance.
Returns:
CbMin, minimum value within range [0, 255] on the Cb Chroma Channel.
Note:
None.

u32 XRgb2YCrCb_GetCbOffset ( XRgb2YCrCb *  InstancePtr  ) 

This function returns the offset compensation value for the Cb Chroma channel.

Parameters:
InstancePtr is a pointer to the XRgb2YCrCb instance.
Returns:
CbOffset is the compensation value within range [0, 255] for the Cb Chroma channel.
Note:
None.

void XRgb2YCrCb_GetCoefs ( XRgb2YCrCb *  InstancePtr,
double *  ACoef,
double *  BCoef,
double *  CCoef,
double *  DCoef 
)

This function returns A, B, C and D coefficients.

Parameters:
InstancePtr is a pointer to the XRgb2YCrCb instance.
ACoef is a pointer to double variable in which A coefficient is returned within the range [0.0 to 1.0].
BCoef is a pointer to double variable in which B coefficient is returned within the range [0.0 to 1.0].
CCoef is a pointer to double variable in which C coefficient is returned within the range [0.0 to 1.0].
DCoef is a pointer to double variable in which D coefficient is returned within the range [0.0 to 1.0].
Returns:
None.
Note:
None.

u32 XRgb2YCrCb_GetCrMax ( XRgb2YCrCb *  InstancePtr  ) 

This function returns the maximum value on the Cr Chroma channel of the output

Parameters:
InstancePtr is a pointer to the XRgb2YCrCb instance.
Returns:
CrMax, maximum value within range [0, 255] on the Cr Chroma Channel.
Note:
None.

u32 XRgb2YCrCb_GetCrMin ( XRgb2YCrCb *  InstancePtr  ) 

This function returns the minimum value on the Cr Chroma channel of the output.

Parameters:
InstancePtr is a pointer to the XRgb2YCrCb instance.
Returns:
CrMin, minimum value within range [0, 255] on the Cr Chroma Channel.
Note:
None.

u32 XRgb2YCrCb_GetCrOffset ( XRgb2YCrCb *  InstancePtr  ) 

This function returns the offset compensation value of the Cr Chroma channel.

Parameters:
InstancePtr is a pointer to the XRgb2YCrCb instance.
Returns:
CrOffset is the compensation value within range [0, 255] of the Cr Chroma channel.
Note:
None.

u32 XRgb2YCrCb_GetDbgFrameCount ( XRgb2YCrCb *  InstancePtr  ) 

This function returns the frame count, the number of frames processed since power-up. This is available only if the debugging feature is enabled.

Parameters:
InstancePtr is a pointer to the XRgb2YCrCb instance.
Returns:
DbgFrameCount, number of frames processed since power-up.
Note:
The SYSDEBUG0, or Frame Throughput Monitor register indicates the number of frames processed since power-up or the last time the core was reset. The SYSDEBUG registers can be useful to identify external memory / frame buffer/ throughput bottlenecks in a video system. Debug functionality should be enabled.

u32 XRgb2YCrCb_GetDbgLineCount ( XRgb2YCrCb *  InstancePtr  ) 

This function returns Line count, the number of lines processed since power-up. This is available only if the debugging feature is enabled.

Parameters:
InstancePtr is a pointer to the XRgb2YCrCb instance.
Returns:
DbgLineCount, number of lines processed since power-up.
Note:
The SYSDEBUG1 or Line Throughput Monitor register indicates the number of lines processed since power-up or the last time the core was reset. The SYSDEBUG registers can be useful to identify external memory / Frame buffer / throughput bottlenecks in a video system. Debug functionality should be enabled.

u32 XRgb2YCrCb_GetDbgPixelCount ( XRgb2YCrCb *  InstancePtr  ) 

This function returns the pixel count, the number of pixels processed since power up. This is available only if the debugging feature is enabled.

Parameters:
InstancePtr is a pointer to the XRgb2YCrCb instance.
Returns:
DbgPixelCount, number of pixels processed since power-up.
Note:
The SYSDEBUG2, or Pixel Throughput Monitor register indicates the number of pixel processed since power-up or the last time the core was reset. The SYSDEBUG registers can be useful to identify external memory / Frame buffer / throughput bottlenecks in a video system. Debug functionality should be enabled.

u32 XRgb2YCrCb_GetVersion ( XRgb2YCrCb *  InstancePtr  ) 

This function facilitates software identification of exact version of the RGB2YCrCb hardware (h/w).

Parameters:
InstancePtr is a pointer to the XRgb2YCrCb instance.
Returns:
Version, contents of a Version register.
Note:
None.

u32 XRgb2YCrCb_GetYMax ( XRgb2YCrCb *  InstancePtr  ) 

This function returns the maximum value of the Luma (Y) channel of the output.

Parameters:
InstancePtr is a pointer to the XRgb2YCrCb instance.
Returns:
YMax, Maximum value within range [0, 255] of the Luma channel.
Note:
None.

u32 XRgb2YCrCb_GetYMin ( XRgb2YCrCb *  InstancePtr  ) 

This function returns the minimum value of the Luma (Y) channel of the output.

Parameters:
InstancePtr is a pointer to the XRgb2YCrCb instance.
Returns:
YMin, minimum value within range [0, 255] of the Luma channel.
Note:
None.

u32 XRgb2YCrCb_GetYOffset ( XRgb2YCrCb *  InstancePtr  ) 

This function returns the offset compensation value for the Luma (Y) channel.

Parameters:
InstancePtr is a pointer to the XRgb2YCrCb instance.
Returns:
YOffset is compensation value within range [0, 255] for the Luma (Y) channel.
Note:
None.

int XRgb2YCrCb_IsDbgByPassEnabled ( XRgb2YCrCb *  InstancePtr  ) 

This function returns the current bypass mode of a core.

Parameters:
InstancePtr is a pointer to the XRgb2YCrCb instance.
Returns:
  • TRUE if ByPass mode is enabled.
  • FALSE if ByPpass mode is not enabled.
Note:
Debug functionality should be enabled.

int XRgb2YCrCb_IsDbgTestPatternEnabled ( XRgb2YCrCb *  InstancePtr  ) 

This function returns the test-pattern generator mode (enabled or not), if debug feature is enabled.

Parameters:
InstancePtr is a pointer to the XRgb2YCrCb instance.
Returns:
  • TRUE if Test-pattern mode is enabled.
  • FALSE if Test-pattern mode is not enabled.
Note:
Debug functionality should be enabled.

void XRgb2YCrCb_Select_OutputRange ( XRgb2YCrCb *  InstancePtr,
enum XRgb_OutputRanges  Range 
)

This function governs the range of outputs Y, Cr and Cb by affecting the conversion coefficients as well as the clipping and clamping values.

Parameters:
InstancePtr is a pointer to the XRgb2YCrCb instance.
Range needs to be set from the enum XRgb_OutputRanges values as: 0 = XRGB_TV_16_TO_240, 1 = XRGB_STUDIO_16_TO_235, 2 = XRGB_GRAPHICS_0_TO_255.
Returns:
None.
Note:
None.

void XRgb2YCrCb_Select_Standard ( XRgb2YCrCb *  InstancePtr,
enum XRgb_Standards  StandardSel,
enum XRgb_OutputRanges  InputRange,
u32  DataWidth,
struct XRgb2YCrCb_Coef_Inputs *  CoefIn 
)

This function populates an XRgb2YCrCb_Coef_Inputs structure with the values from the selected video standard.

Parameters:
InstancePtr is a pointer to the XRgb2YCrCb instance.
StandardSel needs to be set from enum XRgb_Standards value as : 0 = XRGB_STANDARD_ITU_601_SD 1 = XRGB_STANDARD_ITU_709_NTSC 2 = XRGB_STANDARD_ITU_709_PAL 3 = XRGB_STANDARD_YUV.
InputRange needs to be set from enum XRgb_OutputRanges value as: 0 = XRGB_TV_16_TO_240, 1 = XRGB_STUDIO_16_TO_235, 2 = XRGB_GRAPHICS_0_TO_255.
DataWidth specifies the valid range of [8,10,12,16] that needs to be set.
CoefIn specifies a pointer to a XRgb2YCrCb_Coef_Inputs structure which is populated with the values from selected video standard.
Returns:
None.
Note:
None.

void XRgb2YCrCb_SetActiveSize ( XRgb2YCrCb *  InstancePtr,
u16  HSize,
u16  VSize 
)

This function sets active H/V sizes in the active size register.

Parameters:
InstancePtr is a pointer to the XRgb2YCrCb instance.
HSize specifies the number of Active Pixels per scanline that needs to be set within the range [32, 7680].
VSize specifies the number of Active Lines per frame that needs to be set within the range [32, 7680].
Returns:
None.
Note:
None.

void XRgb2YCrCb_SetCbMax ( XRgb2YCrCb *  InstancePtr,
u32  CbMax 
)

This function sets the maximum value allowed on the Cb Chroma channel of the output.

Parameters:
InstancePtr is a pointer to the XRgb2YCrCb instance.
CbMax specifies the maximum value within range [0, 255] of Cb Chroma channel that needs to be set.
Returns:
None.
Note:
None.

void XRgb2YCrCb_SetCbMin ( XRgb2YCrCb *  InstancePtr,
u32  CbMin 
)

This function sets the minimum value allowed on the Cb Chroma channel of the output.

Parameters:
InstancePtr is a pointer to the XRgb2YCrCb instance.
CbMin specifies the maximum value within range [0, 255] of Cb Chroma channel needs to set.
Returns:
None.
Note:
None.

void XRgb2YCrCb_SetCbOffset ( XRgb2YCrCb *  InstancePtr,
u32  CbOffset 
)

This function sets the offset compensation value for the Cb Chroma channel.

Parameters:
InstancePtr is a pointer to the XRgb2YCrCb instance.
CbOffset specifies the compensation value within range [0, 255] of Cb Chroma channel that needs to be set.
Returns:
None.
Note:
None.

void XRgb2YCrCb_SetCoefs ( XRgb2YCrCb *  InstancePtr,
double  ACoef,
double  BCoef,
double  CCoef,
double  DCoef 
)

This function sets A, B, C and D coefficients.

Parameters:
InstancePtr is a pointer to the XRgb2YCrCb instance.
ACoef specifies the A coefficient value within the range [0.0 to 1.0] that needs to be set.
BCoef specifies the B coefficient value within the range [0.0 to 1.0] that needs to be set.
CCoef specifies the C coefficient value within the range [0.0 to 1.0] that needs to be set.
DCoef specifies the D coefficient value within the range [0.0 to 1.0] that needs to be set.
Returns:
None.
Note:
None.

void XRgb2YCrCb_SetCrMax ( XRgb2YCrCb *  InstancePtr,
u32  CrMax 
)

This function sets the maximum value allowed on the Cr Chroma channel of the output.

Parameters:
InstancePtr is a pointer to the XRgb2YCrCb instance.
CrMax specifies the maximum value within range [0, 255] of Cr Chroma channel that needs to be set.
Returns:
None.
Note:
None.

void XRgb2YCrCb_SetCrMin ( XRgb2YCrCb *  InstancePtr,
u32  CrMin 
)

This function sets the minimum value allowed on the Cr Chroma channel of the output.

Parameters:
InstancePtr is a pointer to the XRgb2YCrCb instance.
CrMin specifies the minimum value within range [0, 255] of Cr Chroma channel that needs to be set.
Returns:
None.
Note:
None.

void XRgb2YCrCb_SetCrOffset ( XRgb2YCrCb *  InstancePtr,
u32  CrOffset 
)

This function sets the offset compensation value for the Cr Chroma channel.

Parameters:
InstancePtr is a pointer to the XRgb2YCrCb instance.
CrOffset specifies the compensation value within range [0, 255] of Cr Chroma channel that needs to be set.
Returns:
None.
Note:
None.

void XRgb2YCrCb_Setup ( XRgb2YCrCb *  InstancePtr  ) 

This function sets up double buffered ACTIVE_SIZE register and enables the register update.

Parameters:
InstancePtr is a pointer to the XRgb2YCrCb instance.
Returns:
None.
Note:
None.

void XRgb2YCrCb_SetYMax ( XRgb2YCrCb *  InstancePtr,
u32  YMax 
)

This function sets the maximum value allowed on the Luma (Y) channel of the output.

Parameters:
InstancePtr is a pointer to the XRgb2YCrCb instance.
YMax specifies the maximum value within range [0, 255] of Luma channel that needs to be set.
Returns:
None.
Note:
None.

void XRgb2YCrCb_SetYMin ( XRgb2YCrCb *  InstancePtr,
u32  YMin 
)

This function sets the minimum value allowed on the Luma (Y) channel of the output.

Parameters:
InstancePtr is a pointer to the XRgb2YCrCb instance.
YMin specifies the minimum value within range [0, 255] of Luma channel that needs to be set.
Returns:
None.
Note:
None.

void XRgb2YCrCb_SetYOffset ( XRgb2YCrCb *  InstancePtr,
u32  YOffset 
)

This function sets the offset compensation value for the Luma (Y) channel.

Parameters:
InstancePtr is a pointer to the XRgb2YCrCb instance.
YOffset specifies the compensation value within range [0, 255] of Luma channel that needs to be set.
Returns:
None.
Note:
None.

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