global.h File Reference

global definitions for H.264 decoder. More...

#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <assert.h>
#include <time.h>
#include <sys/timeb.h>
#include "win32.h"
#include "defines.h"
#include "ifunctions.h"
#include "parsetcommon.h"

Include dependency graph for global.h:

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Data Structures

struct DecodingEnvironment

struct to characterize the state of the arithmetic coding engine More...

struct BiContextType

struct for context management More...

struct MotionInfoContexts

struct TextureInfoContexts

struct DecRefPicMarking_s

struct macroblock

Macroblock. More...

struct syntaxelement

Syntaxelement. More...

struct Bitstream

Bitstream. More...

struct datapartition

DataPartition. More...

struct Slice

Slice. More...

struct img_par

struct snr_par

struct inp_par

struct pix_pos

struct old_slice_par

Defines

#define ET_SIZE   300

#define NUM_MB_TYPE_CTX   11

#define NUM_B8_TYPE_CTX   9

#define NUM_MV_RES_CTX   10

#define NUM_REF_NO_CTX   6

#define NUM_DELTA_QP_CTX   4

#define NUM_MB_AFF_CTX   4

#define NUM_TRANSFORM_SIZE_CTX   3

#define NUM_IPR_CTX   2

#define NUM_CIPR_CTX   4

#define NUM_CBP_CTX   4

#define NUM_BCBP_CTX   4

#define NUM_MAP_CTX   15

#define NUM_LAST_CTX   15

#define NUM_ONE_CTX   5

#define NUM_ABS_CTX   5

Typedefs

typedef DecodingEnvironment * DecodingEnvironmentPtr

typedef BiContextType * BiContextTypePtr

typedef struct DecRefPicMarking_s DecRefPicMarking_t

typedef struct macroblock Macroblock

typedef struct syntaxelement SyntaxElement

typedef struct datapartition DataPartition

typedef struct img_par ImageParameters

typedef struct pix_pos PixelPos

typedef struct old_slice_par OldSliceParams

Enumerations

enum ColorFormat {
  YUV_UNKNOWN = -1, YUV400 = 0, YUV420 = 1, YUV422 = 2,
  YUV444 = 3
}

enum PAR_DP_TYPE { PAR_DP_1, PAR_DP_3 }

enum PAR_OF_TYPE { PAR_OF_ANNEXB, PAR_OF_RTP }

enum SE_type {
  SE_HEADER, SE_PTYPE, SE_MBTYPE, SE_REFFRAME,
  SE_INTRAPREDMODE, SE_MVD, SE_CBP_INTRA, SE_LUM_DC_INTRA,
  SE_CHR_DC_INTRA, SE_LUM_AC_INTRA, SE_CHR_AC_INTRA, SE_CBP_INTER,
  SE_LUM_DC_INTER, SE_CHR_DC_INTER, SE_LUM_AC_INTER, SE_CHR_AC_INTER,
  SE_DELTA_QUANT_INTER, SE_DELTA_QUANT_INTRA, SE_BFRAME, SE_EOS,
  SE_MAX_ELEMENTS
}

enum IntraInterDecision { INTER_MB, INTRA_MB_4x4, INTRA_MB_16x16 }

enum BitCountType {
  BITS_HEADER = 0, BITS_TOTAL_MB = 1, BITS_MB_MODE = 2, BITS_INTER_MB = 3,
  BITS_CBP_MB = 4, BITS_COEFF_Y_MB = 5, BITS_COEFF_CB_MB = 6, BITS_COEFF_CR_MB = 7,
  BITS_DELTA_QUANT_MB = 8, BITS_STUFFING = 9, MAX_BITCOUNTER_MB = 10
}

enum SliceMode { NO_SLICES, FIXED_MB, FIXED_RATE, CALL_BACK }

enum SymbolMode { UVLC, CABAC }

enum Lists { LIST_0 = 0, LIST_1 = 1, BI_PRED = 2 }

enum PictureStructure { FRAME, TOP_FIELD, BOTTOM_FIELD }

enum ColorPlane {
  PLANE_Y = 0, PLANE_U = 1, PLANE_V = 2, PLANE_G = 0,
  PLANE_B = 1, PLANE_R = 2
}

enum SliceType {
  P_SLICE = 0, B_SLICE, I_SLICE, SP_SLICE,
  SI_SLICE
}

enum Component_Type { IS_LUMA = 0, IS_CHROMA = 1 }

enum Color_Component { LumaComp = 0, CrComp = 1, CbComp = 2 }

Functions

void init_conf (struct inp_par *inp, char *config_filename)

void report (struct inp_par *inp, ImageParameters *img, struct snr_par *snr)

void init (ImageParameters *img)

void malloc_slice (struct inp_par *inp, ImageParameters *img)

void free_slice (ImageParameters *img)

void reset_ec_flags (void)

void error (char *text, int code)

int init_global_buffers (void)

void free_global_buffers (void)

int RBSPtoSODB (byte *streamBuffer, int last_byte_pos)

int EBSPtoRBSP (byte *streamBuffer, int end_bytepos, int begin_bytepos)

void FreePartition (DataPartition *dp, int n)

DataPartition * AllocPartition (int n)

void tracebits (const char *trace_str, int len, int info, int value1)

void tracebits2 (const char *trace_str, int len, int info)

unsigned CeilLog2 (unsigned uiVal)

unsigned CeilLog2_sf (unsigned uiVal)

void change_plane_JV (int nplane)

void make_frame_picture_JV (void)

Variables

pic_parameter_set_rbsp_t * active_pps

seq_parameter_set_rbsp_t * active_sps

imgpel ** imgY_ref

imgpel *** imgUV_ref

int ** PicPos

int ReMapRef [20]

int Bframe_ctr

int frame_no

int g_nFrame

int TopFieldForSkip_Y [16][16]

int TopFieldForSkip_UV [2][16][16]

char errortext [ET_SIZE]

ImageParameters * img

struct snr_par * snr

int64 tot_time

struct inp_par * params

OldSliceParams old_slice

int p_out

int p_ref

FILE * p_log

unsigned int previous_frame_num

int ref_flag [17]

int Is_primary_correct

int Is_redundant_correct

int redundant_slice_ref_idx

int(* nal_startcode_follows )(Slice *, int)

int ipmode_DPCM

Detailed Description

global definitions for H.264 decoder.

global.h

Author:: Copyright (C) 1999 Telenor Satellite Services,Norway Ericsson Radio Systems, Sweden

Inge Lille-Langoy <inge.lille-langoy@telenor.com>

Telenor Satellite Services Keysers gt.13 tel.: +47 23 13 86 98 N-0130 Oslo,Norway fax.: +47 22 77 79 80

Rickard Sjoberg <rickard.sjoberg@era.ericsson.se>

Ericsson Radio Systems KI/ERA/T/VV 164 80 Stockholm, Sweden

Definition in file global.h.

Define Documentation

#define ET_SIZE 300

size of error text buffer

Definition at line 61 of file global.h.

Referenced by AllocPartition(), arideco_delete_decoding_environment(), Configure(), init_conf(), malloc_slice(), no_mem_exit(), OpenAnnexBFile(), OpenRTPFile(), read_next_nalu(), and report().

Typedef Documentation

typedef struct datapartition DataPartition

DataPartition.

typedef struct DecRefPicMarking_s DecRefPicMarking_t

Buffer structure for decoded referenc picture marking commands

typedef struct macroblock Macroblock

Macroblock.

typedef struct syntaxelement SyntaxElement

Syntaxelement.

Enumeration Type Documentation

enum ColorFormat

Color formats.

Enumerator:

YUV_UNKNOWN	Unknown color format.
YUV400	Monochrome.
YUV420	4:2:0
YUV422	4:2:2
YUV444	4:4:4

Definition at line 70 of file global.h.

enum PAR_DP_TYPE

Data Partitioning Modes.

Enumerator:

PAR_DP_1	no data partitioning is supported
PAR_DP_3	data partitioning with 3 partitions

Definition at line 79 of file global.h.

enum PAR_OF_TYPE

Output File Types.

Enumerator:

PAR_OF_ANNEXB	Current TML description.
PAR_OF_RTP	RTP Packet Output format.

Definition at line 87 of file global.h.

enum SE_type

definition of H.264 syntax elements

Enumerator:

SE_MAX_ELEMENTS

number of maximum syntax elements, this MUST be the last one!

Definition at line 95 of file global.h.

Function Documentation

DataPartition* AllocPartition ( int n )

Allocates a stand-alone partition structure. Structure should be freed by FreePartition(); data structures.

Input:: n: number of partitions in the array

return: pointer to DataPartition Structure, zero-initialized

Definition at line 818 of file ldecod.c.

References datapartition::bitstream, error(), errortext, ET_SIZE, MAX_CODED_FRAME_SIZE, and Bitstream::streamBuffer.

Referenced by malloc_slice().

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unsigned CeilLog2 ( unsigned uiVal )

calculate Ceil(Log2(uiVal))

Definition at line 42 of file header.c.

Referenced by interpret_motion_constrained_slice_group_set_info(), and RestOfSliceHeader().

void change_plane_JV ( int nplane )

change target plane for 4:4:4 Independent mode

Definition at line 4722 of file macroblock.c.

References dec_picture_JV.

Referenced by decode_one_slice(), and exit_picture().

int EBSPtoRBSP	(	byte *	streamBuffer,
		int	end_bytepos,
		int	begin_bytepos
	)

Converts Encapsulated Byte Sequence Packets to RBSP.

Parameters:

	streamBuffer	pointer to data stream
	end_bytepos	size of data stream
	begin_bytepos	Position after beginning

Definition at line 92 of file nal.c.

Referenced by NALUtoRBSP().

void error	(	char *	text,
		int	code
	)

Error handling procedure. Print error message to stderr and exit with supplied code.

Parameters:

	text	Error message
	code	Exit code

Definition at line 29 of file filehandle.c.

References flush_dpb().

Referenced by adaptive_memory_management(), AllocPartition(), arideco_delete_decoding_environment(), buf2img(), check_num_ref(), conf_read_check(), Configure(), decode_one_component(), decode_poc(), FmoGenerateMapUnitToSliceGroupMap(), free_mem2D(), free_mem2Ddouble(), free_mem2Dint(), free_mem2Dint64(), free_mem2Dodouble(), free_mem2Doint(), free_mem2Dpel(), free_mem2Dshort(), free_mem3D(), free_mem3Ddouble(), free_mem3Dint(), free_mem3Dint64(), free_mem3Dodouble(), free_mem3Doint(), free_mem3Dpel(), free_mem3Dshort(), free_mem4D(), free_mem4Dint(), free_mem4Dpel(), free_mem4Dshort(), free_mem5Dint(), free_mem5Dpel(), free_mem5Dshort(), free_mem6Dshort(), free_mem7Dshort(), free_offset_mem2Dshort(), get_smallest_poc(), getDpbSize(), img2buf_endian(), init_conf(), init_dpb(), init_picture(), initBitsFile(), interpret_picture_timing_info(), intra16x16_hor_pred(), intra16x16_plane_pred(), intra16x16_vert_pred(), intrapred_chroma(), malloc_slice(), mm_assign_long_term_frame_idx(), no_mem_exit(), OpenAnnexBFile(), OpenRTPFile(), output_one_frame_from_dpb(), predict_nnz(), read_ipred_modes(), read_new_slice(), read_next_nalu(), readCoeff4x4_CAVLC(), readMotionInfoFromNAL(), remove_frame_from_dpb(), reorder_ref_pic_list(), report(), RestOfSliceHeader(), start_macroblock(), store_picture_in_dpb(), and write_out_picture().

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void free_global_buffers ( void )

Free allocated memory of frame size related global buffers buffers are defined in global.h, allocated memory is allocated in int init_global_buffers().

Input:: Input Parameters struct inp_par *inp, Image Parameters ImageParameters *img

Output:: none

Definition at line 1039 of file ldecod.c.

References free_mem2D(), free_mem2Dint(), free_mem2Dpel(), free_mem3Dint(), free_mem3Dpel(), free_mem4D(), free_mem4Dint(), img, and imgY_ref.

Referenced by init_global_buffers(), and main().

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void free_slice ( ImageParameters * img )

Memory frees of the Slice structure and of its dependent data structures.

Input:: Input Parameters struct inp_par *inp, ImageParameters *img

Definition at line 930 of file ldecod.c.

References delete_contexts_MotionInfo(), delete_contexts_TextureInfo(), FreePartition(), Slice::mot_ctx, Slice::partArr, and Slice::tex_ctx.

Referenced by main().

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void FreePartition	(	DataPartition *	dp,
		int	n
	)

Frees a partition structure (array).

Input:: Partition to be freed, size of partition Array (Number of Partitions)

return: None

Note:: n must be the same as for the corresponding call of AllocPartition

Definition at line 869 of file ldecod.c.

References datapartition::bitstream, and Bitstream::streamBuffer.

Referenced by free_slice().

void init ( ImageParameters * img )

Initilize some arrays.

Parameters:

img

image parameters

Definition at line 429 of file ldecod.c.

References imgY_ref, and params.

Referenced by main().

void init_conf	(	struct inp_par *	inp,
		char *	config_filename
	)

Read parameters from configuration file.

Input:: Name of configuration filename

Output: none

Definition at line 533 of file ldecod.c.

References conf_read_check(), error(), errortext, ET_SIZE, img, PAR_OF_ANNEXB, and PAR_OF_RTP.

Referenced by Configure().

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int init_global_buffers ( void )

Dynamic memory allocation of frame size related global buffers buffers are defined in global.h, allocated memory must be freed in void free_global_buffers().

Input:: Input Parameters struct inp_par *inp, Image Parameters ImageParameters *img

Output:: Number of allocated bytes

Helper array to access macroblock positions. We add 1 to also consider last MB.

Definition at line 961 of file ldecod.c.

References free_global_buffers(), get_mem2D(), get_mem2Dint(), get_mem2Dpel(), get_mem3Dint(), get_mem3Dpel(), get_mem4D(), get_mem4Dint(), img, imgY_ref, MAX_REFERENCE_PICTURES, no_mem_exit(), and YUV400.

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void make_frame_picture_JV ( void )

make frame picture from each plane data for 4:4:4 Independent mode

Definition at line 4737 of file macroblock.c.

References dec_picture_JV, free_storable_picture(), storable_picture::imgUV, storable_picture::imgY, storable_picture::JVmotion, and storable_picture::motion.

Referenced by exit_picture().

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void malloc_slice	(	struct inp_par *	inp,
		ImageParameters *	img
	)

Allocates the slice structure along with its dependent data structures.

Input:: Input Parameters struct inp_par *inp, ImageParameters *img

you don't know whether we do CABAC hre, hence initialize CABAC anyway

assume data partitioning (worst case) for the following mallocs()

Definition at line 895 of file ldecod.c.

References AllocPartition(), create_contexts_MotionInfo(), create_contexts_TextureInfo(), error(), errortext, ET_SIZE, Slice::max_part_nr, Slice::mot_ctx, Slice::partArr, and Slice::tex_ctx.

Referenced by main().

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int RBSPtoSODB	(	byte *	streamBuffer,
		int	last_byte_pos
	)

Converts RBSP to string of data bits.

Parameters:

	streamBuffer	pointer to buffer containing data
	last_byte_pos	position of the last byte containing data.

Returns:: last_byte_pos position of the last byte pos. If the last-byte was entirely a stuffing byte, it is removed, and the last_byte_pos is updated.

Definition at line 41 of file nal.c.

Referenced by read_new_slice().

void report	(	struct inp_par *	inp,
		ImageParameters *	img,
		struct snr_par *	snr
	)

Reports the gathered information to appropriate outputs.

Input:: struct inp_par *inp, ImageParameters *img, struct snr_par *stat

Output:: None

Definition at line 653 of file ldecod.c.

References error(), errortext, ET_SIZE, p_log, and params.

Referenced by main().

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void reset_ec_flags ( void )

resets EC_Flags called at the start of each slice

Definition at line 154 of file errorconcealment.c.

References ec_flag, NO_EC, and SE_MAX_ELEMENTS.

Variable Documentation

char errortext[ET_SIZE]

buffer for error message for exit with error()

Definition at line 62 of file global.h.

Referenced by AllocPartition(), arideco_delete_decoding_environment(), Configure(), init_conf(), malloc_slice(), no_mem_exit(), OpenAnnexBFile(), OpenRTPFile(), read_next_nalu(), and report().

ImageParameters* img

image parameters

Definition at line 89 of file ldecod.c.

Referenced by adaptive_memory_management(), alloc_ref_pic_list_reordering_buffer(), alloc_storable_picture(), CheckAvailabilityOfNeighbors(), clear_picture(), compute_colocated(), compute_colocated_JV(), conceal_non_ref_pics(), concealByTrial(), copyPredMB(), ercConcealInterFrame(), FirstPartOfSliceHeader(), flush_dpb(), FmoGenerateMbToSliceGroupMap(), FmoGenerateType1MapUnitMap(), FmoGenerateType2MapUnitMap(), FmoGenerateType3MapUnitMap(), FmoGenerateType4MapUnitMap(), FmoGenerateType5MapUnitMap(), FmoGetLastMBInSliceGroup(), FmoGetNextMBNr(), FmoGetSliceGroupId(), FmoInit(), free_dpb(), free_global_buffers(), free_storable_picture(), get_long_term_pic(), get_pic_from_dpb(), get_short_term_pic(), getAffNeighbour(), getNonAffNeighbour(), init_conf(), init_dpb(), init_global_buffers(), init_lists(), init_lists_for_non_reference_loss(), main(), mb_is_available(), output_one_frame_from_dpb(), pixMeanInterpolateBlock(), readRefPictureIdx_VLC(), ref_pic_list_reordering(), reorder_ref_pic_list(), RestOfSliceHeader(), store_picture_in_dpb(), unmark_long_term_field_for_reference_by_frame_idx(), write_lost_non_ref_pic(), write_lost_ref_after_idr(), and write_out_picture().

imgpel** imgY_ref

reference frame find snr

Definition at line 46 of file global.h.

Referenced by find_snr(), free_global_buffers(), init(), and init_global_buffers().

int Is_primary_correct

if primary frame is correct, 0: incorrect

Definition at line 726 of file global.h.

Referenced by decode_one_frame(), Error_tracking(), and read_new_slice().

int Is_redundant_correct

if redundant frame is correct, 0:incorrect

Definition at line 727 of file global.h.

Referenced by decode_one_frame(), Error_tracking(), and read_new_slice().

FILE* p_log

SNR file.

Definition at line 716 of file global.h.

Referenced by report().

int p_out

file descriptor to output YUV file

Definition at line 713 of file global.h.

Referenced by Configure(), interpret_spare_pic(), main(), output_one_frame_from_dpb(), and store_picture_in_dpb().

int p_ref

pointer to input original reference YUV file file

Definition at line 714 of file global.h.

Referenced by Configure(), direct_output(), exit_picture(), insert_picture_in_dpb(), and main().

struct inp_par* params

input parameters from input configuration file

Definition at line 87 of file ldecod.c.

Referenced by calculate_frame_no(), Configure(), direct_output(), exit_picture(), find_snr(), init(), insert_picture_in_dpb(), main(), read_new_slice(), read_next_nalu(), report(), RestOfSliceHeader(), and write_out_picture().

unsigned int previous_frame_num

frame number of previous slice

Definition at line 723 of file global.h.

Referenced by decode_one_frame().

int redundant_slice_ref_idx

reference index of redundant slice

Definition at line 728 of file global.h.

Referenced by Error_tracking(), and ref_pic_list_reordering().

int ref_flag[17]

0: i-th previous frame is incorrect non-zero: i-th previous frame is correct

Definition at line 724 of file global.h.

Referenced by conceal_lost_frames(), decode_one_frame(), Error_tracking(), and main().

struct snr_par* snr

statistics

Definition at line 88 of file ldecod.c.

Referenced by direct_output(), exit_picture(), insert_picture_in_dpb(), and main().


Data Structures
struct	DecodingEnvironment
	struct to characterize the state of the arithmetic coding engine More...
struct	BiContextType
	struct for context management More...
struct	MotionInfoContexts
struct	TextureInfoContexts
struct	DecRefPicMarking_s
struct	macroblock
	Macroblock. More...
struct	syntaxelement
	Syntaxelement. More...
struct	Bitstream
	Bitstream. More...
struct	datapartition
	DataPartition. More...
struct	Slice
	Slice. More...
struct	img_par
struct	snr_par
struct	inp_par
struct	pix_pos
struct	old_slice_par
Defines
#define	ET_SIZE 300
#define	NUM_MB_TYPE_CTX 11
#define	NUM_B8_TYPE_CTX 9
#define	NUM_MV_RES_CTX 10
#define	NUM_REF_NO_CTX 6
#define	NUM_DELTA_QP_CTX 4
#define	NUM_MB_AFF_CTX 4
#define	NUM_TRANSFORM_SIZE_CTX 3
#define	NUM_IPR_CTX 2
#define	NUM_CIPR_CTX 4
#define	NUM_CBP_CTX 4
#define	NUM_BCBP_CTX 4
#define	NUM_MAP_CTX 15
#define	NUM_LAST_CTX 15
#define	NUM_ONE_CTX 5
#define	NUM_ABS_CTX 5
Typedefs
typedef DecodingEnvironment *	DecodingEnvironmentPtr
typedef BiContextType *	BiContextTypePtr
typedef struct DecRefPicMarking_s	DecRefPicMarking_t
typedef struct macroblock	Macroblock
typedef struct syntaxelement	SyntaxElement
typedef struct datapartition	DataPartition
typedef struct img_par	ImageParameters
typedef struct pix_pos	PixelPos
typedef struct old_slice_par	OldSliceParams
Enumerations
enum	ColorFormat { YUV_UNKNOWN = -1, YUV400 = 0, YUV420 = 1, YUV422 = 2, YUV444 = 3 }
enum	PAR_DP_TYPE { PAR_DP_1, PAR_DP_3 }
enum	PAR_OF_TYPE { PAR_OF_ANNEXB, PAR_OF_RTP }
enum	SE_type { SE_HEADER, SE_PTYPE, SE_MBTYPE, SE_REFFRAME, SE_INTRAPREDMODE, SE_MVD, SE_CBP_INTRA, SE_LUM_DC_INTRA, SE_CHR_DC_INTRA, SE_LUM_AC_INTRA, SE_CHR_AC_INTRA, SE_CBP_INTER, SE_LUM_DC_INTER, SE_CHR_DC_INTER, SE_LUM_AC_INTER, SE_CHR_AC_INTER, SE_DELTA_QUANT_INTER, SE_DELTA_QUANT_INTRA, SE_BFRAME, SE_EOS, SE_MAX_ELEMENTS }
enum	IntraInterDecision { INTER_MB, INTRA_MB_4x4, INTRA_MB_16x16 }
enum	BitCountType { BITS_HEADER = 0, BITS_TOTAL_MB = 1, BITS_MB_MODE = 2, BITS_INTER_MB = 3, BITS_CBP_MB = 4, BITS_COEFF_Y_MB = 5, BITS_COEFF_CB_MB = 6, BITS_COEFF_CR_MB = 7, BITS_DELTA_QUANT_MB = 8, BITS_STUFFING = 9, MAX_BITCOUNTER_MB = 10 }
enum	SliceMode { NO_SLICES, FIXED_MB, FIXED_RATE, CALL_BACK }
enum	SymbolMode { UVLC, CABAC }
enum	Lists { LIST_0 = 0, LIST_1 = 1, BI_PRED = 2 }
enum	PictureStructure { FRAME, TOP_FIELD, BOTTOM_FIELD }
enum	ColorPlane { PLANE_Y = 0, PLANE_U = 1, PLANE_V = 2, PLANE_G = 0, PLANE_B = 1, PLANE_R = 2 }
enum	SliceType { P_SLICE = 0, B_SLICE, I_SLICE, SP_SLICE, SI_SLICE }
enum	Component_Type { IS_LUMA = 0, IS_CHROMA = 1 }
enum	Color_Component { LumaComp = 0, CrComp = 1, CbComp = 2 }
Functions
void	init_conf (struct inp_par inp, char config_filename)
void	report (struct inp_par inp, ImageParameters img, struct snr_par *snr)
void	init (ImageParameters *img)
void	malloc_slice (struct inp_par inp, ImageParameters img)
void	free_slice (ImageParameters *img)
void	reset_ec_flags (void)
void	error (char *text, int code)
int	init_global_buffers (void)
void	free_global_buffers (void)
int	RBSPtoSODB (byte *streamBuffer, int last_byte_pos)
int	EBSPtoRBSP (byte *streamBuffer, int end_bytepos, int begin_bytepos)
void	FreePartition (DataPartition *dp, int n)
DataPartition *	AllocPartition (int n)
void	tracebits (const char *trace_str, int len, int info, int value1)
void	tracebits2 (const char *trace_str, int len, int info)
unsigned	CeilLog2 (unsigned uiVal)
unsigned	CeilLog2_sf (unsigned uiVal)
void	change_plane_JV (int nplane)
void	make_frame_picture_JV (void)
Variables
pic_parameter_set_rbsp_t *	active_pps
seq_parameter_set_rbsp_t *	active_sps
imgpel **	imgY_ref
imgpel ***	imgUV_ref
int **	PicPos
int	ReMapRef [20]
int	Bframe_ctr
int	frame_no
int	g_nFrame
int	TopFieldForSkip_Y [16][16]
int	TopFieldForSkip_UV [2][16][16]
char	errortext [ET_SIZE]
ImageParameters *	img
struct snr_par *	snr
int64	tot_time
struct inp_par *	params
OldSliceParams	old_slice
int	p_out
int	p_ref
FILE *	p_log
unsigned int	previous_frame_num
int	ref_flag [17]
int	Is_primary_correct
int	Is_redundant_correct
int	redundant_slice_ref_idx
int(*	nal_startcode_follows )(Slice *, int)
int	ipmode_DPCM