cabac.h File Reference

Headerfile for entropy coding routines. More...

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Functions

MotionInfoContexts * create_contexts_MotionInfo (void)

TextureInfoContexts * create_contexts_TextureInfo (void)

void delete_contexts_MotionInfo (MotionInfoContexts *enco_ctx)

void delete_contexts_TextureInfo (TextureInfoContexts *enco_ctx)

void writeMB_I_typeInfo_CABAC (Macroblock *currMB, SyntaxElement *se, DataPartition *dp)

void writeMB_B_typeInfo_CABAC (Macroblock *currMB, SyntaxElement *se, DataPartition *dp)

void writeMB_P_typeInfo_CABAC (Macroblock *currMB, SyntaxElement *se, DataPartition *dp)

void writeIntraPredMode_CABAC (SyntaxElement *se, DataPartition *dp)

void writeB8_typeInfo_CABAC (SyntaxElement *se, DataPartition *dp)

void writeB8_B_typeInfo_CABAC (SyntaxElement *se, DataPartition *dp)

void writeRefPic_B_CABAC (SyntaxElement *se, DataPartition *dp)

void writeRefPic_P_CABAC (SyntaxElement *se, DataPartition *dp)

void writeMVD_CABAC (Macroblock *currMB, SyntaxElement *se, DataPartition *dp)

void writeCBP_CABAC (Macroblock *currMB, SyntaxElement *se, DataPartition *dp)

void writeDquant_CABAC (Macroblock *currMB, SyntaxElement *se, DataPartition *dp)

void writeRunLevel_CABAC (Macroblock *currMB, SyntaxElement *se, DataPartition *dp)

void writeCIPredMode_CABAC (Macroblock *currMB, SyntaxElement *se, DataPartition *dp)

void print_ctx_TextureInfo (TextureInfoContexts *enco_ctx)

void writeMB_Pskip_flagInfo_CABAC (Macroblock *currMB, SyntaxElement *se, DataPartition *dp)

void writeMB_Bskip_flagInfo_CABAC (Macroblock *currMB, SyntaxElement *se, DataPartition *dp)

void writeFieldModeInfo_CABAC (Macroblock *currMB, SyntaxElement *se, DataPartition *dp)

void writeCBP_BIT_CABAC (Macroblock *currMB, int b8, int bit, int cbp, EncodingEnvironmentPtr eep_dp, TextureInfoContexts *ctx)

void CheckAvailabilityOfNeighborsCABAC (Macroblock *currMB)

void writeMB_transform_size_CABAC (Macroblock *currMB, SyntaxElement *se, DataPartition *dp)

void write_and_store_CBP_block_bit_444 (Macroblock *currMB, EncodingEnvironmentPtr eep_dp, int type, int cbp_bit, TextureInfoContexts *tex_ctx)

void write_and_store_CBP_block_bit (Macroblock *currMB, EncodingEnvironmentPtr eep_dp, int type, int cbp_bit, TextureInfoContexts *tex_ctx)

Variables

static const byte maxpos [] = {15, 14, 63, 31, 31, 15, 3, 14, 7, 15, 15, 14, 63, 31, 31, 15, 15, 14, 63, 31, 31, 15}

static const byte c1isdc [] = { 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1}

static const byte type2ctx_bcbp [] = { 0, 1, 2, 3, 3, 4, 5, 6, 5, 5, 10, 11, 12, 13, 13, 14, 16, 17, 18, 19, 19, 20}

static const byte type2ctx_map [] = { 0, 1, 2, 3, 4, 5, 6, 7, 6, 6, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21}

static const byte type2ctx_last [] = { 0, 1, 2, 3, 4, 5, 6, 7, 6, 6, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21}

static const byte type2ctx_one [] = { 0, 1, 2, 3, 3, 4, 5, 6, 5, 5, 10, 11, 12, 13, 13, 14, 16, 17, 18, 19, 19, 20}

static const byte type2ctx_abs [] = { 0, 1, 2, 3, 3, 4, 5, 6, 5, 5, 10, 11, 12, 13, 13, 14, 16, 17, 18, 19, 19, 20}

static const byte max_c2 [] = { 4, 4, 4, 4, 4, 4, 3, 4, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4}

const byte * pos2ctx_map []

const byte * pos2ctx_map_int []

const byte * pos2ctx_last []

Detailed Description

Headerfile for entropy coding routines.

cabac.h

Author:: Detlev Marpe
Copyright (C) 2000 HEINRICH HERTZ INSTITUTE All Rights Reserved.

Date:: 21. Oct 2000 (Changes by Tobias Oelbaum 28.08.2001)

Definition in file cabac.h.

Function Documentation

void CheckAvailabilityOfNeighborsCABAC ( Macroblock * currMB )

Check for available neighbouring blocks and set pointers in current macroblock.

Definition at line 306 of file cabac.c.

References img_par::mb_data, macroblock::mb_left, macroblock::mb_up, and macroblock::p_Img.

Referenced by start_macroblock(), writeMBLayerBSlice(), and writeMBLayerPSlice().

MotionInfoContexts* create_contexts_MotionInfo ( void )

Allocation of contexts models for the motion info used for arithmetic encoding.

Definition at line 333 of file cabac.c.

References no_mem_exit().

Referenced by create_coding_state(), and malloc_slice().

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TextureInfoContexts* create_contexts_TextureInfo ( void )

Allocates of contexts models for the texture info used for arithmetic encoding.

Definition at line 352 of file cabac.c.

References no_mem_exit().

Referenced by create_coding_state(), and malloc_slice().

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void delete_contexts_MotionInfo ( MotionInfoContexts * enco_ctx )

Frees the memory of the contexts models used for arithmetic encoding of the motion info.

Definition at line 368 of file cabac.c.

Referenced by delete_coding_state(), and free_slice().

void delete_contexts_TextureInfo ( TextureInfoContexts * enco_ctx )

Frees the memory of the contexts models used for arithmetic encoding of the texture info.

Definition at line 383 of file cabac.c.

Referenced by delete_coding_state(), and free_slice().

void write_and_store_CBP_block_bit	(	Macroblock *	currMB,
		EncodingEnvironmentPtr	eep_dp,
		int	type,
		int	cbp_bit,
		TextureInfoContexts *	tex_ctx
	)

Write CBP4-BIT.

Definition at line 1632 of file cabac.c.

References biari_encode_symbol(), get4x4Neighbour(), img_par::mb_data, macroblock::mb_type, macroblock::p_Img, macroblock::subblock_x, and macroblock::subblock_y.

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void write_and_store_CBP_block_bit_444	(	Macroblock *	currMB,
		EncodingEnvironmentPtr	eep_dp,
		int	type,
		int	cbp_bit,
		TextureInfoContexts *	tex_ctx
	)

Write CBP4-BIT (for 444 formats).

Definition at line 1405 of file cabac.c.

References biari_encode_symbol(), get4x4Neighbour(), img_par::mb_data, macroblock::mb_type, macroblock::p_Img, macroblock::subblock_x, macroblock::subblock_y, and YUV444.

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void writeB8_B_typeInfo_CABAC	(	SyntaxElement *	se,
		DataPartition *	dp
	)

This function is used to arithmetically encode the 8x8 block type info.

Definition at line 837 of file cabac.c.

References arienco_bits_written(), biari_encode_symbol(), syntaxelement::len, slice::mot_ctx, syntaxelement::value1, and Bitstream::write_flag.

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void writeB8_typeInfo_CABAC	(	SyntaxElement *	se,
		DataPartition *	dp
	)

This function is used to arithmetically encode the 8x8 block type info.

Definition at line 906 of file cabac.c.

References arienco_bits_written(), biari_encode_symbol(), syntaxelement::len, slice::mot_ctx, syntaxelement::value1, and Bitstream::write_flag.

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void writeCBP_BIT_CABAC	(	Macroblock *	currMB,
		int	b8,
		int	bit,
		int	cbp,
		EncodingEnvironmentPtr	eep_dp,
		TextureInfoContexts *	ctx
	)

This function is used to arithmetically encode the coded block pattern of an 8x8 block.

Definition at line 1290 of file cabac.c.

References biari_encode_symbol(), get4x4Neighbour(), img_par::mb_data, macroblock::mb_type, macroblock::mb_up, and macroblock::p_Img.

Referenced by RDCost_for_8x8blocks(), and writeCBP_CABAC().

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void writeCBP_CABAC	(	Macroblock *	currMB,
		SyntaxElement *	se,
		DataPartition *	dp
	)

This function is used to arithmetically encode the coded block pattern of a macroblock.

Definition at line 1333 of file cabac.c.

References arienco_bits_written(), biari_encode_symbol(), syntaxelement::len, macroblock::mb_left, macroblock::mb_up, macroblock::p_slice, slice::tex_ctx, syntaxelement::value1, Bitstream::write_flag, writeCBP_BIT_CABAC(), YUV400, and YUV444.

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void writeCIPredMode_CABAC	(	Macroblock *	currMB,
		SyntaxElement *	se,
		DataPartition *	dp
	)

This function is used to arithmetically encode the chroma intra prediction mode of an 8x8 block.

Definition at line 1253 of file cabac.c.

References arienco_bits_written(), biari_encode_symbol(), macroblock::c_ipred_mode, syntaxelement::len, macroblock::mb_left, macroblock::mb_type, macroblock::mb_up, slice::tex_ctx, unary_bin_max_encode(), syntaxelement::value1, and Bitstream::write_flag.

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void writeDquant_CABAC	(	Macroblock *	currMB,
		SyntaxElement *	se,
		DataPartition *	dp
	)

This function is used to arithmetically encode the coded block pattern of a given delta quant.

Definition at line 1123 of file cabac.c.

References arienco_bits_written(), biari_encode_symbol(), syntaxelement::len, slice::tex_ctx, unary_bin_encode(), syntaxelement::value1, and Bitstream::write_flag.

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void writeFieldModeInfo_CABAC	(	Macroblock *	currMB,
		SyntaxElement *	se,
		DataPartition *	dp
	)

This function is used to arithmetically encode the field mode info of a given MB in the case of mb-based frame/field decision.

Definition at line 399 of file cabac.c.

References arienco_bits_written(), biari_encode_symbol(), syntaxelement::context, syntaxelement::len, img_par::mb_data, macroblock::p_Img, slice::tex_ctx, syntaxelement::value1, and Bitstream::write_flag.

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void writeIntraPredMode_CABAC	(	SyntaxElement *	se,
		DataPartition *	dp
	)

This function is used to arithmetically encode a pair of intra prediction modes of a given MB.

Definition at line 945 of file cabac.c.

References arienco_bits_written(), biari_encode_symbol(), syntaxelement::len, syntaxelement::value1, and Bitstream::write_flag.

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void writeMB_B_typeInfo_CABAC	(	Macroblock *	currMB,
		SyntaxElement *	se,
		DataPartition *	dp
	)

This function is used to arithmetically encode the macroblock type info of a given MB in a B slice.

Definition at line 632 of file cabac.c.

References arienco_bits_written(), biari_encode_symbol(), biari_encode_symbol_final(), syntaxelement::context, syntaxelement::len, macroblock::mb_left, macroblock::mb_type, macroblock::mb_up, slice::mot_ctx, syntaxelement::value1, and Bitstream::write_flag.

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void writeMB_Bskip_flagInfo_CABAC	(	Macroblock *	currMB,
		SyntaxElement *	se,
		DataPartition *	dp
	)

This function is used to arithmetically encode the mb_skip_flag for B slices.

Definition at line 462 of file cabac.c.

References arienco_bits_written(), biari_encode_symbol(), syntaxelement::context, syntaxelement::len, macroblock::mb_left, macroblock::mb_up, slice::mot_ctx, macroblock::p_slice, syntaxelement::value1, syntaxelement::value2, and Bitstream::write_flag.

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void writeMB_I_typeInfo_CABAC	(	Macroblock *	currMB,
		SyntaxElement *	se,
		DataPartition *	dp
	)

This function is used to arithmetically encode the macroblock type info of a given MB in an I Slice.

Definition at line 758 of file cabac.c.

References arienco_bits_written(), biari_encode_symbol(), biari_encode_symbol_final(), syntaxelement::context, syntaxelement::len, macroblock::mb_left, macroblock::mb_type, macroblock::mb_up, slice::mot_ctx, syntaxelement::value1, and Bitstream::write_flag.

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void writeMB_P_typeInfo_CABAC	(	Macroblock *	currMB,
		SyntaxElement *	se,
		DataPartition *	dp
	)

This function is used to arithmetically encode the macroblock type info of a given MB.

Definition at line 526 of file cabac.c.

References arienco_bits_written(), biari_encode_symbol(), biari_encode_symbol_final(), syntaxelement::len, slice::mot_ctx, syntaxelement::value1, and Bitstream::write_flag.

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void writeMB_Pskip_flagInfo_CABAC	(	Macroblock *	currMB,
		SyntaxElement *	se,
		DataPartition *	dp
	)

This function is used to arithmetically encode the mb_skip_flag.

Definition at line 430 of file cabac.c.

References arienco_bits_written(), biari_encode_symbol(), syntaxelement::context, syntaxelement::len, macroblock::mb_left, macroblock::mb_up, slice::mot_ctx, macroblock::p_slice, syntaxelement::value1, and Bitstream::write_flag.

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void writeMB_transform_size_CABAC	(	Macroblock *	currMB,
		SyntaxElement *	se,
		DataPartition *	dp
	)

This function is used to arithmetically encode the macroblock intra_pred_size flag info of a given MB.

Definition at line 497 of file cabac.c.

References arienco_bits_written(), biari_encode_symbol(), syntaxelement::context, syntaxelement::len, macroblock::mb_left, macroblock::mb_up, and Bitstream::write_flag.

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void writeMVD_CABAC	(	Macroblock *	currMB,
		SyntaxElement *	se,
		DataPartition *	dp
	)

This function is used to arithmetically encode the motion vector data of a B-frame MB.

Definition at line 1159 of file cabac.c.

References arienco_bits_written(), biari_encode_symbol(), biari_encode_symbol_eq_prob(), syntaxelement::context, get4x4Neighbour(), syntaxelement::len, img_par::mb_data, img_par::MbaffFrameFlag, slice::mot_ctx, macroblock::mvd, macroblock::p_Img, macroblock::subblock_x, macroblock::subblock_y, unary_exp_golomb_mv_encode(), syntaxelement::value1, syntaxelement::value2, and Bitstream::write_flag.

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void writeRefPic_B_CABAC	(	SyntaxElement *	se,
		DataPartition *	dp
	)

This function is used to arithmetically encode the reference parameter of a given MB.

Definition at line 1042 of file cabac.c.

References arienco_bits_written(), biari_encode_symbol(), syntaxelement::context, get4x4Neighbour(), syntaxelement::len, img_par::mb_data, macroblock::mb_type, img_par::MbaffFrameFlag, slice::mot_ctx, storable_picture::motion, pic_motion_params::ref_idx, macroblock::subblock_x, macroblock::subblock_y, unary_bin_encode(), syntaxelement::value1, syntaxelement::value2, and Bitstream::write_flag.

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void writeRefPic_P_CABAC	(	SyntaxElement *	se,
		DataPartition *	dp
	)

This function is used to arithmetically encode the reference parameter of a given MB.

Definition at line 976 of file cabac.c.

References arienco_bits_written(), biari_encode_symbol(), syntaxelement::context, get4x4Neighbour(), syntaxelement::len, img_par::mb_data, img_par::MbaffFrameFlag, slice::mot_ctx, storable_picture::motion, pic_motion_params::ref_idx, macroblock::subblock_x, macroblock::subblock_y, unary_bin_encode(), syntaxelement::value1, syntaxelement::value2, and Bitstream::write_flag.

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void writeRunLevel_CABAC	(	Macroblock *	currMB,
		SyntaxElement *	se,
		DataPartition *	dp
	)

Write Block-Transform Coefficients.

Definition at line 1840 of file cabac.c.

References arienco_bits_written(), syntaxelement::context, syntaxelement::len, macroblock::p_slice, slice::tex_ctx, syntaxelement::value1, syntaxelement::value2, Bitstream::write_flag, write_significance_map(), and write_significant_coefficients().

Referenced by writeChromaCoeff(), writeCoeff16x16_CABAC(), writeCoeff4x4_CABAC(), and writeCoeff8x8_CABAC().

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Functions
MotionInfoContexts *	create_contexts_MotionInfo (void)
TextureInfoContexts *	create_contexts_TextureInfo (void)
void	delete_contexts_MotionInfo (MotionInfoContexts *enco_ctx)
void	delete_contexts_TextureInfo (TextureInfoContexts *enco_ctx)
void	writeMB_I_typeInfo_CABAC (Macroblock currMB, SyntaxElement se, DataPartition *dp)
void	writeMB_B_typeInfo_CABAC (Macroblock currMB, SyntaxElement se, DataPartition *dp)
void	writeMB_P_typeInfo_CABAC (Macroblock currMB, SyntaxElement se, DataPartition *dp)
void	writeIntraPredMode_CABAC (SyntaxElement se, DataPartition dp)
void	writeB8_typeInfo_CABAC (SyntaxElement se, DataPartition dp)
void	writeB8_B_typeInfo_CABAC (SyntaxElement se, DataPartition dp)
void	writeRefPic_B_CABAC (SyntaxElement se, DataPartition dp)
void	writeRefPic_P_CABAC (SyntaxElement se, DataPartition dp)
void	writeMVD_CABAC (Macroblock currMB, SyntaxElement se, DataPartition *dp)
void	writeCBP_CABAC (Macroblock currMB, SyntaxElement se, DataPartition *dp)
void	writeDquant_CABAC (Macroblock currMB, SyntaxElement se, DataPartition *dp)
void	writeRunLevel_CABAC (Macroblock currMB, SyntaxElement se, DataPartition *dp)
void	writeCIPredMode_CABAC (Macroblock currMB, SyntaxElement se, DataPartition *dp)
void	print_ctx_TextureInfo (TextureInfoContexts *enco_ctx)
void	writeMB_Pskip_flagInfo_CABAC (Macroblock currMB, SyntaxElement se, DataPartition *dp)
void	writeMB_Bskip_flagInfo_CABAC (Macroblock currMB, SyntaxElement se, DataPartition *dp)
void	writeFieldModeInfo_CABAC (Macroblock currMB, SyntaxElement se, DataPartition *dp)
void	writeCBP_BIT_CABAC (Macroblock currMB, int b8, int bit, int cbp, EncodingEnvironmentPtr eep_dp, TextureInfoContexts ctx)
void	CheckAvailabilityOfNeighborsCABAC (Macroblock *currMB)
void	writeMB_transform_size_CABAC (Macroblock currMB, SyntaxElement se, DataPartition *dp)
void	write_and_store_CBP_block_bit_444 (Macroblock currMB, EncodingEnvironmentPtr eep_dp, int type, int cbp_bit, TextureInfoContexts tex_ctx)
void	write_and_store_CBP_block_bit (Macroblock currMB, EncodingEnvironmentPtr eep_dp, int type, int cbp_bit, TextureInfoContexts tex_ctx)
Variables
static const byte	maxpos [] = {15, 14, 63, 31, 31, 15, 3, 14, 7, 15, 15, 14, 63, 31, 31, 15, 15, 14, 63, 31, 31, 15}
static const byte	c1isdc [] = { 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1}
static const byte	type2ctx_bcbp [] = { 0, 1, 2, 3, 3, 4, 5, 6, 5, 5, 10, 11, 12, 13, 13, 14, 16, 17, 18, 19, 19, 20}
static const byte	type2ctx_map [] = { 0, 1, 2, 3, 4, 5, 6, 7, 6, 6, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21}
static const byte	type2ctx_last [] = { 0, 1, 2, 3, 4, 5, 6, 7, 6, 6, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21}
static const byte	type2ctx_one [] = { 0, 1, 2, 3, 3, 4, 5, 6, 5, 5, 10, 11, 12, 13, 13, 14, 16, 17, 18, 19, 19, 20}
static const byte	type2ctx_abs [] = { 0, 1, 2, 3, 3, 4, 5, 6, 5, 5, 10, 11, 12, 13, 13, 14, 16, 17, 18, 19, 19, 20}
static const byte	max_c2 [] = { 4, 4, 4, 4, 4, 4, 3, 4, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4}
const byte *	pos2ctx_map []
const byte *	pos2ctx_map_int []
const byte *	pos2ctx_last []