vc1.h File Reference

#include "avcodec.h"
#include "h264chroma.h"
#include "mpegvideo.h"
#include "intrax8.h"
#include "vc1_common.h"
#include "vc1dsp.h"

Go to the source code of this file.

Data Structures
struct	VC1Context
	The VC1 Context. More...

Macros
#define	AC_VLC_BITS   9

Enumerations
enum	CodingSet {   CS_HIGH_MOT_INTRA = 0, CS_HIGH_MOT_INTER, CS_LOW_MOT_INTRA, CS_LOW_MOT_INTER,   CS_MID_RATE_INTRA, CS_MID_RATE_INTER, CS_HIGH_RATE_INTRA, CS_HIGH_RATE_INTER }
enum	FrameCodingMode { PROGRESSIVE = 0, ILACE_FRAME, ILACE_FIELD }
	FCM Frame Coding Mode. More...
enum	QuantMode { QUANT_FRAME_IMPLICIT, QUANT_FRAME_EXPLICIT, QUANT_NON_UNIFORM, QUANT_UNIFORM }
	Sequence quantizer mode. More...
enum	DQProfile { DQPROFILE_FOUR_EDGES, DQPROFILE_DOUBLE_EDGES, DQPROFILE_SINGLE_EDGE, DQPROFILE_ALL_MBS }
	Where quant can be changed. More...
Where quant can be changed
enum	DQSingleEdge { DQSINGLE_BEDGE_LEFT, DQSINGLE_BEDGE_TOP, DQSINGLE_BEDGE_RIGHT, DQSINGLE_BEDGE_BOTTOM }
enum	DQDoubleEdge { DQDOUBLE_BEDGE_TOPLEFT, DQDOUBLE_BEDGE_TOPRIGHT, DQDOUBLE_BEDGE_BOTTOMRIGHT, DQDOUBLE_BEDGE_BOTTOMLEFT }
	Which pair of edges is quantized with ALTPQUANT. More...
enum	MVModes {   MV_PMODE_1MV_HPEL_BILIN, MV_PMODE_1MV, MV_PMODE_1MV_HPEL, MV_PMODE_MIXED_MV,   MV_PMODE_INTENSITY_COMP }
	MV modes for P frames. More...
enum	MBModesIntfr {   MV_PMODE_INTFR_1MV, MV_PMODE_INTFR_2MV_FIELD, MV_PMODE_INTFR_2MV, MV_PMODE_INTFR_4MV_FIELD,   MV_PMODE_INTFR_4MV, MV_PMODE_INTFR_INTRA }
	MBMODE for interlaced frame P-picture. More...
MV types for B frames
enum	BMVTypes { BMV_TYPE_BACKWARD, BMV_TYPE_FORWARD, BMV_TYPE_INTERPOLATED, BMV_TYPE_DIRECT }
Block types for P/B frames
enum	TransformTypes {   TT_8X8, TT_8X4_BOTTOM, TT_8X4_TOP, TT_8X4,   TT_4X8_RIGHT, TT_4X8_LEFT, TT_4X8, TT_4X4 }
Overlap conditions for Advanced Profile
enum	COTypes { CONDOVER_NONE = 0, CONDOVER_ALL, CONDOVER_SELECT }
enum	Imode {   IMODE_RAW, IMODE_NORM2, IMODE_DIFF2, IMODE_NORM6,   IMODE_DIFF6, IMODE_ROWSKIP, IMODE_COLSKIP }
	Imode types. More...

Functions
int	ff_vc1_decode_sequence_header (AVCodecContext *avctx, VC1Context *v, GetBitContext *gb)
	Decode Simple/Main Profiles sequence header.
int	ff_vc1_decode_entry_point (AVCodecContext *avctx, VC1Context *v, GetBitContext *gb)
int	ff_vc1_parse_frame_header (VC1Context *v, GetBitContext *gb)
int	ff_vc1_parse_frame_header_adv (VC1Context *v, GetBitContext *gb)
int	ff_vc1_init_common (VC1Context *v)
	Init VC-1 specific tables and VC1Context members.
int	ff_vc1_decode_init_alloc_tables (VC1Context *v)
void	ff_vc1_init_transposed_scantables (VC1Context *v)
int	ff_vc1_decode_end (AVCodecContext *avctx)
	Close a VC1/WMV3 decoder.
void	ff_vc1_decode_blocks (VC1Context *v)
void	ff_vc1_loop_filter_iblk (VC1Context *v, int pq)
void	ff_vc1_loop_filter_iblk_delayed (VC1Context *v, int pq)
void	ff_vc1_smooth_overlap_filter_iblk (VC1Context *v)
void	ff_vc1_apply_p_loop_filter (VC1Context *v)
void	ff_vc1_mc_1mv (VC1Context *v, int dir)
	Do motion compensation over 1 macroblock Mostly adapted hpel_motion and qpel_motion from mpegvideo.c.
void	ff_vc1_mc_4mv_luma (VC1Context *v, int n, int dir, int avg)
	Do motion compensation for 4-MV macroblock - luminance block.
void	ff_vc1_mc_4mv_chroma (VC1Context *v, int dir)
	Do motion compensation for 4-MV macroblock - both chroma blocks.
void	ff_vc1_mc_4mv_chroma4 (VC1Context *v, int dir, int dir2, int avg)
	Do motion compensation for 4-MV interlaced frame chroma macroblock (both U and V)
void	ff_vc1_interp_mc (VC1Context *v)
	Motion compensation for direct or interpolated blocks in B-frames.

Macro Definition Documentation

#define AC_VLC_BITS   9

Definition at line 33 of file vc1.h.

Enumeration Type Documentation

enum QuantMode

Sequence quantizer mode.

Enumerator:

QUANT_FRAME_IMPLICIT	Implicitly specified at frame level.
QUANT_FRAME_EXPLICIT	Explicitly specified at frame level.
QUANT_NON_UNIFORM	Non-uniform quant used for all frames.
QUANT_UNIFORM	Uniform quant used for all frames.

Definition at line 37 of file vc1.h.

enum DQProfile

Where quant can be changed.

Enumerator:

DQPROFILE_FOUR_EDGES
DQPROFILE_DOUBLE_EDGES
DQPROFILE_SINGLE_EDGE
DQPROFILE_ALL_MBS

Definition at line 47 of file vc1.h.

enum DQSingleEdge

Enumerator:

DQSINGLE_BEDGE_LEFT
DQSINGLE_BEDGE_TOP
DQSINGLE_BEDGE_RIGHT
DQSINGLE_BEDGE_BOTTOM

Definition at line 58 of file vc1.h.

enum DQDoubleEdge

Which pair of edges is quantized with ALTPQUANT.

Enumerator:

DQDOUBLE_BEDGE_TOPLEFT
DQDOUBLE_BEDGE_TOPRIGHT
DQDOUBLE_BEDGE_BOTTOMRIGHT
DQDOUBLE_BEDGE_BOTTOMLEFT

Definition at line 68 of file vc1.h.

enum MVModes

MV modes for P frames.

Enumerator:

MV_PMODE_1MV_HPEL_BILIN
MV_PMODE_1MV
MV_PMODE_1MV_HPEL
MV_PMODE_MIXED_MV
MV_PMODE_INTENSITY_COMP

Definition at line 78 of file vc1.h.

enum MBModesIntfr

MBMODE for interlaced frame P-picture.

Enumerator:

MV_PMODE_INTFR_1MV
MV_PMODE_INTFR_2MV_FIELD
MV_PMODE_INTFR_2MV
MV_PMODE_INTFR_4MV_FIELD
MV_PMODE_INTFR_4MV
MV_PMODE_INTFR_INTRA

Definition at line 89 of file vc1.h.

enum BMVTypes

Enumerator:

BMV_TYPE_BACKWARD
BMV_TYPE_FORWARD
BMV_TYPE_INTERPOLATED
BMV_TYPE_DIRECT

Definition at line 101 of file vc1.h.

enum TransformTypes

Enumerator:

TT_8X8
TT_8X4_BOTTOM
TT_8X4_TOP
TT_8X4
TT_4X8_RIGHT
TT_4X8_LEFT
TT_4X8
TT_4X4

Definition at line 111 of file vc1.h.

enum CodingSet

Enumerator:

CS_HIGH_MOT_INTRA
CS_HIGH_MOT_INTER
CS_LOW_MOT_INTRA
CS_LOW_MOT_INTER
CS_MID_RATE_INTRA
CS_MID_RATE_INTER
CS_HIGH_RATE_INTRA
CS_HIGH_RATE_INTER

Definition at line 123 of file vc1.h.

enum COTypes

Enumerator:

CONDOVER_NONE
CONDOVER_ALL
CONDOVER_SELECT

Definition at line 136 of file vc1.h.

enum FrameCodingMode

FCM Frame Coding Mode.

Note

some content might be marked interlaced but have fcm set to 0 as well (e.g. HD-DVD)

Enumerator:

PROGRESSIVE	in the bitstream is reported as 00b
ILACE_FRAME	in the bitstream is reported as 10b
ILACE_FIELD	in the bitstream is reported as 11b

Definition at line 148 of file vc1.h.

enum Imode

Imode types.

Enumerator:

IMODE_RAW
IMODE_NORM2
IMODE_DIFF2
IMODE_NORM6
IMODE_DIFF6
IMODE_ROWSKIP
IMODE_COLSKIP

Definition at line 158 of file vc1.h.

Function Documentation

int ff_vc1_decode_sequence_header	(	AVCodecContext *	avctx,
		VC1Context *	v,
		GetBitContext *	gb
	)

Decode Simple/Main Profiles sequence header.

See Also

Figure 7-8, p16-17

Parameters

avctx	Codec context
gb	GetBit context initialized from Codec context extra_data

Returns

Status

Definition at line 283 of file vc1.c.

Referenced by vc1_decode_init(), and vc1_extract_header().

int ff_vc1_decode_entry_point	(	AVCodecContext *	avctx,
		VC1Context *	v,
		GetBitContext *	gb
	)

Definition at line 518 of file vc1.c.

Referenced by vc1_decode_frame(), vc1_decode_init(), and vc1_extract_header().

int ff_vc1_parse_frame_header	(	VC1Context *	v,
		GetBitContext *	gb
	)

Definition at line 636 of file vc1.c.

Referenced by decode_wmv9(), vc1_decode_frame(), and vc1_extract_header().

int ff_vc1_parse_frame_header_adv	(	VC1Context *	v,
		GetBitContext *	gb
	)

Definition at line 855 of file vc1.c.

Referenced by vc1_decode_frame(), and vc1_extract_header().

int ff_vc1_init_common

(

VC1Context *

v

)

Init VC-1 specific tables and VC1Context members.

Parameters

v	The VC1Context to initialize

Returns

Status

Definition at line 1594 of file vc1.c.

Referenced by vc1_decode_init(), vc1_parse_init(), and wmv9_init().

int ff_vc1_decode_init_alloc_tables

(

VC1Context *

v

)

Definition at line 322 of file vc1dec.c.

Referenced by vc1_decode_frame(), vc1_decode_init(), and wmv9_init().

void ff_vc1_init_transposed_scantables

(

VC1Context *

v

)

Definition at line 398 of file vc1dec.c.

Referenced by vc1_decode_init(), and wmv9_init().

int ff_vc1_decode_end

(

AVCodecContext *

avctx

)

Close a VC1/WMV3 decoder.

Warning

Initial try at using MpegEncContext stuff

Definition at line 572 of file vc1dec.c.

Referenced by mss2_decode_end(), vc1_decode_frame(), and vc1_decode_init().

void ff_vc1_decode_blocks

(

VC1Context *

v

)

Definition at line 3013 of file vc1_block.c.

Referenced by decode_wmv9(), and vc1_decode_frame().

void ff_vc1_loop_filter_iblk	(	VC1Context *	v,
		int	pq
	)

Definition at line 34 of file vc1_loopfilter.c.

Referenced by vc1_decode_b_blocks(), and vc1_decode_i_blocks().

void ff_vc1_loop_filter_iblk_delayed	(	VC1Context *	v,
		int	pq
	)

Definition at line 61 of file vc1_loopfilter.c.

Referenced by vc1_decode_i_blocks_adv().

void ff_vc1_smooth_overlap_filter_iblk

(

VC1Context *

v

)

Definition at line 129 of file vc1_loopfilter.c.

Referenced by vc1_decode_i_blocks_adv().

void ff_vc1_apply_p_loop_filter

(

VC1Context *

v

)

Definition at line 330 of file vc1_loopfilter.c.

Referenced by vc1_decode_p_blocks().

void ff_vc1_mc_1mv	(	VC1Context *	v,
		int	dir
	)

Do motion compensation over 1 macroblock Mostly adapted hpel_motion and qpel_motion from mpegvideo.c.

Definition at line 38 of file vc1_mc.c.

Referenced by vc1_b_mc(), vc1_decode_b_mb_intfr(), vc1_decode_p_mb(), vc1_decode_p_mb_intfi(), and vc1_decode_p_mb_intfr().

void ff_vc1_mc_4mv_luma	(	VC1Context *	v,
		int	n,
		int	dir,
		int	avg
	)

Do motion compensation for 4-MV macroblock - luminance block.

Definition at line 256 of file vc1_mc.c.

Referenced by vc1_decode_b_mb_intfi(), vc1_decode_b_mb_intfr(), vc1_decode_p_mb(), vc1_decode_p_mb_intfi(), and vc1_decode_p_mb_intfr().

void ff_vc1_mc_4mv_chroma	(	VC1Context *	v,
		int	dir
	)

Do motion compensation for 4-MV macroblock - both chroma blocks.

Definition at line 502 of file vc1_mc.c.

Referenced by vc1_decode_b_mb_intfi(), vc1_decode_p_mb(), and vc1_decode_p_mb_intfi().

void ff_vc1_mc_4mv_chroma4	(	VC1Context *	v,
		int	dir,
		int	dir2,
		int	avg
	)

Do motion compensation for 4-MV interlaced frame chroma macroblock (both U and V)

Definition at line 674 of file vc1_mc.c.

Referenced by vc1_decode_b_mb_intfr(), and vc1_decode_p_mb_intfr().

void ff_vc1_interp_mc

(

VC1Context *

v

)

Motion compensation for direct or interpolated blocks in B-frames.

Definition at line 788 of file vc1_mc.c.

Referenced by vc1_b_mc(), and vc1_decode_b_mb_intfr().