q_offsets.c File Reference

read Quantization Offset matrix parameters from input file: q_OffsetMatrix.cfg More...

#include "global.h"
#include "memalloc.h"
#include "q_matrix.h"
#include "q_offsets.h"

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Defines

#define MAX_ITEMS_TO_PARSE   2000

Functions

char * GetConfigFileContent (char *Filename, int error_type)
void InitOffsetParam ()
void allocate_QOffsets ()
void free_QOffsets ()
int CheckOffsetParameterName (char *s, int *type)
void ParseQOffsetMatrix (char *buf, int bufsize)
void Init_QOffsetMatrix ()
void CalculateOffsetParam ()
void CalculateOffset8Param ()
void SelectColorType (int colour_id)

Variables

int offset4x4_check [6] = { 0, 0, 0, 0, 0, 0 }
int offset8x8_check [6] = { 0, 0, 0, 0, 0, 0 }
static const char OffsetType4x4 [15][24]
static const char OffsetType8x8 [15][24]
int ***** LevelOffset4x4Comp
int ***** LevelOffset8x8Comp
int **** ptLevelOffset4x4
int **** ptLevelOffset8x8
int AdaptRndWeight
int AdaptRndCrWeight
short ** OffsetList4x4input
short ** OffsetList8x8input
short *** OffsetList4x4
short *** OffsetList8x8
const int OffsetBits = 11
static const short Offset_intra_default_intra [16]
static const short Offset_intra_default_chroma [16]
static const short Offset_intra_default_inter [16]
static const short Offset_inter_default [16]
static const short Offset8_intra_default_intra [64]
static const short Offset8_intra_default_chroma [64]
static const short Offset8_intra_default_inter [64]
static const short Offset8_inter_default [64]

Detailed Description

read Quantization Offset matrix parameters from input file: q_OffsetMatrix.cfg

Definition in file q_offsets.c.

Function Documentation

void allocate_QOffsets (  ) 

Allocate Q matrix arrays.

Definition at line 159 of file q_offsets.c.

References InputParameters::AdaptRoundingFixed, get_mem2Dshort(), get_mem3Dshort(), get_mem5Dint(), and InputParameters::output.

Referenced by Init_QOffsetMatrix().

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void CalculateOffset8Param ( void   ) 

Calculate the quantisation offset parameters.

Definition at line 627 of file q_offsets.c.

References InputParameters::AdaptRoundingFixed, ImageParameters::bitdepth_chroma_qp_scale, ImageParameters::bitdepth_luma_qp_scale, ImageParameters::colour_plane_id, and ImageParameters::type.

Referenced by code_a_plane(), encode_one_slice(), and encode_one_slice_MBAFF().

void CalculateOffsetParam ( void   ) 

Calculation of the quantization offset params at the frame level.

Input:
none
Output:
none

Definition at line 489 of file q_offsets.c.

References InputParameters::AdaptRndCrWFactor, InputParameters::AdaptRndWFactor, InputParameters::AdaptRoundingFixed, ImageParameters::bitdepth_chroma_qp_scale, ImageParameters::bitdepth_luma_qp_scale, ImageParameters::colour_plane_id, ImageParameters::nal_reference_idc, and ImageParameters::type.

Referenced by code_a_plane(), encode_one_slice(), and encode_one_slice_MBAFF().

int CheckOffsetParameterName ( char *  s,
int *  type 
)

Check the parameter name.

Parameters:
s parameter name string
type 4x4 or 8x8 offset matrix type
Returns:
the index number if the string is a valid parameter name,
-1 for error

Definition at line 223 of file q_offsets.c.

Referenced by ParseQOffsetMatrix().

void free_QOffsets ( void   ) 

Free Q matrix arrays.

Definition at line 188 of file q_offsets.c.

References InputParameters::AdaptRoundingFixed, free_mem2Dshort(), free_mem3Dshort(), and free_mem5Dint().

Referenced by free_global_buffers().

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void Init_QOffsetMatrix ( void   ) 

Initialise Q offset matrix values.

Now set up all offset params. This process could be reused if we wish to re-init offsets

Definition at line 386 of file q_offsets.c.

References allocate_QOffsets(), errortext, GetConfigFileContent(), InitOffsetParam(), InputParameters::OffsetMatrixPresentFlag, ParseQOffsetMatrix(), and InputParameters::QOffsetMatrixFile.

Referenced by init_encoder().

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void InitOffsetParam (  ) 

Intit quantization offset params.

Input:
none
Output:
none

Definition at line 428 of file q_offsets.c.

References InputParameters::AdaptRoundingFixed, InputParameters::OffsetMatrixPresentFlag, and InputParameters::output.

Referenced by Init_QOffsetMatrix().

void ParseQOffsetMatrix ( char *  buf,
int  bufsize 
)

Parse the Q Offset Matrix values read from cfg file.

Parameters:
buf buffer to be parsed
bufsize buffer size of buffer

Definition at line 259 of file q_offsets.c.

References CheckOffsetParameterName(), error(), errortext, and ET_SIZE.

Referenced by Init_QOffsetMatrix().

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Variable Documentation

const short Offset8_inter_default[64] [static]

Initial value:

 {
  342, 342, 342, 342, 342, 342, 342, 342,
  342, 342, 342, 342, 342, 342, 342, 342,
  342, 342, 342, 342, 342, 342, 342, 342,
  342, 342, 342, 342, 342, 342, 342, 342,
  342, 342, 342, 342, 342, 342, 342, 342,
  342, 342, 342, 342, 342, 342, 342, 342,
  342, 342, 342, 342, 342, 342, 342, 342,
  342, 342, 342, 342, 342, 342, 342, 342
}

Definition at line 142 of file q_offsets.c.

const short Offset8_intra_default_chroma[64] [static]

Initial value:

 {
  682, 682, 682, 682, 682, 682, 682, 682,
  682, 682, 682, 682, 682, 682, 682, 682,
  682, 682, 682, 682, 682, 682, 682, 682,
  682, 682, 682, 682, 682, 682, 682, 682,
  682, 682, 682, 682, 682, 682, 682, 682,
  682, 682, 682, 682, 682, 682, 682, 682,
  682, 682, 682, 682, 682, 682, 682, 682,
  682, 682, 682, 682, 682, 682, 682, 682
}

Definition at line 120 of file q_offsets.c.

const short Offset8_intra_default_inter[64] [static]

Initial value:

 {
  342, 342, 342, 342, 342, 342, 342, 342,
  342, 342, 342, 342, 342, 342, 342, 342,
  342, 342, 342, 342, 342, 342, 342, 342,
  342, 342, 342, 342, 342, 342, 342, 342,
  342, 342, 342, 342, 342, 342, 342, 342,
  342, 342, 342, 342, 342, 342, 342, 342,
  342, 342, 342, 342, 342, 342, 342, 342,
  342, 342, 342, 342, 342, 342, 342, 342
}

Definition at line 131 of file q_offsets.c.

const short Offset8_intra_default_intra[64] [static]

Initial value:

 {
  682, 682, 682, 682, 682, 682, 682, 682,
  682, 682, 682, 682, 682, 682, 682, 682,
  682, 682, 682, 682, 682, 682, 682, 682,
  682, 682, 682, 682, 682, 682, 682, 682,
  682, 682, 682, 682, 682, 682, 682, 682,
  682, 682, 682, 682, 682, 682, 682, 682,
  682, 682, 682, 682, 682, 682, 682, 682,
  682, 682, 682, 682, 682, 682, 682, 682
}

Definition at line 109 of file q_offsets.c.

const short Offset_inter_default[16] [static]

Initial value:

 {
  342, 342, 342, 342,
  342, 342, 342, 342,
  342, 342, 342, 342,
  342, 342, 342, 342,
}

Definition at line 102 of file q_offsets.c.

const short Offset_intra_default_chroma[16] [static]

Initial value:

 {
  682, 682, 682, 682,
  682, 682, 682, 682,
  682, 682, 682, 682,
  682, 682, 682, 682
}

Definition at line 87 of file q_offsets.c.

const short Offset_intra_default_inter[16] [static]

Initial value:

 {
  342, 342, 342, 342,
  342, 342, 342, 342,
  342, 342, 342, 342,
  342, 342, 342, 342,
}

Definition at line 95 of file q_offsets.c.

const short Offset_intra_default_intra[16] [static]

Initial value:

 {
  682, 682, 682, 682,
  682, 682, 682, 682,
  682, 682, 682, 682,
  682, 682, 682, 682
}

Definition at line 80 of file q_offsets.c.

const char OffsetType4x4[15][24] [static]

Initial value:

 {
  "INTRA4X4_LUMA_INTRA",
  "INTRA4X4_CHROMAU_INTRA",
  "INTRA4X4_CHROMAV_INTRA",
  "INTRA4X4_LUMA_INTERP",
  "INTRA4X4_CHROMAU_INTERP",
  "INTRA4X4_CHROMAV_INTERP",
  "INTRA4X4_LUMA_INTERB",
  "INTRA4X4_CHROMAU_INTERB",
  "INTRA4X4_CHROMAV_INTERB",
  "INTER4X4_LUMA_INTERP",
  "INTER4X4_CHROMAU_INTERP",
  "INTER4X4_CHROMAV_INTERP",
  "INTER4X4_LUMA_INTERB",
  "INTER4X4_CHROMAU_INTERB",
  "INTER4X4_CHROMAV_INTERB"
}

Definition at line 24 of file q_offsets.c.

const char OffsetType8x8[15][24] [static]

Initial value:

 {
  "INTRA8X8_LUMA_INTRA",
  "INTRA8X8_LUMA_INTERP",
  "INTRA8X8_LUMA_INTERB",
  "INTER8X8_LUMA_INTERP",
  "INTER8X8_LUMA_INTERB",
  "INTRA8X8_CHROMAU_INTRA",
  "INTRA8X8_CHROMAU_INTERP",
  "INTRA8X8_CHROMAU_INTERB",
  "INTER8X8_CHROMAU_INTERP",
  "INTER8X8_CHROMAU_INTERB",
  "INTRA8X8_CHROMAV_INTRA",
  "INTRA8X8_CHROMAV_INTERP",
  "INTRA8X8_CHROMAV_INTERB",
  "INTER8X8_CHROMAV_INTERP",
  "INTER8X8_CHROMAV_INTERB"
}

Definition at line 42 of file q_offsets.c.

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