VC1Context Struct Reference

The VC1 Context. More...

#include <vc1.h>

Data Fields

MpegEncContext s

IntraX8Context x8

int bits

int ttfrm

Transform type info present at frame level.

uint8_t ttmbf

Transform type flag.

uint8_t ttblk4x4

Value of ttblk which indicates a 4x4 transform.

int codingset

index of current table set from 11.8 to use for luma block decoding

int codingset2

index of current table set from 11.8 to use for chroma block decoding

int pqindex

raw pqindex used in coding set selection

int a_avail

int c_avail

uint8_t * mb_type_base

uint8_t * mb_type [3]

int16_t bfraction

Relative position % anchors=> how to scale MVs.

uint8_t halfpq

Uniform quant over image and qp+.5.

uint8_t respic

Frame-level flag for resized images.

int buffer_fullness

HRD info.

uint8_t mvrange

Ranges:

0 -> [-64n 63.f] x [-32, 31.f]
1 -> [-128, 127.f] x [-64, 63.f]
2 -> [-512, 511.f] x [-128, 127.f]
3 -> [-1024, 1023.f] x [-256, 255.f].

uint8_t pquantizer

Uniform (over sequence) quantizer in use.

VLC * cbpcy_vlc

CBPCY VLC table.

int tt_index

Index for Transform Type tables.

uint8_t * mv_type_mb_plane

bitplane for mv_type == (4MV)

uint8_t * direct_mb_plane

bitplane for "direct" MBs

int mv_type_is_raw

mv type mb plane is not coded

int dmb_is_raw

direct mb plane is raw

int skip_is_raw

skip mb plane is not coded

uint8_t luty [256]

uint8_t lutuv [256]

int use_ic

use intensity compensation in B-frames

int rnd

rounding control

int p_frame_skipped

int bi_type

int x8_type

uint32_t * cbp_base

uint32_t * cbp

uint8_t bfraction_lut_index

Index for BFRACTION value (see Table 40, reproduced into ff_vc1_bfraction_lut[]).

uint8_t broken_link

Broken link flag (BROKEN_LINK syntax element).

uint8_t closed_entry

Closed entry point flag (CLOSED_ENTRY syntax element).

int res_sm

Simple/Main Profile sequence header.

int res_x8

reserved

int multires

frame-level RESPIC syntax element present

int res_fasttx

reserved, always 1

int res_transtab

reserved, always 0

int rangered

RANGEREDFRM (range reduction) syntax element present at frame level.

int res_rtm_flag

reserved, set to 1

int reserved

reserved

int level

Advanced Profile.

int chromaformat

2bits, 2=4:2:0, only defined

int postprocflag

Per-frame processing suggestion flag present.

int broadcast

TFF/RFF present.

int interlace

Progressive/interlaced (RPTFTM syntax element).

int tfcntrflag

TFCNTR present.

int panscanflag

NUMPANSCANWIN, TOPLEFT{X,Y}, BOTRIGHT{X,Y} present.

int refdist_flag

REFDIST syntax element present in II, IP, PI or PP field picture headers.

int extended_dmv

Additional extended dmv range at P/B frame-level.

int color_prim

8bits, chroma coordinates of the color primaries

int transfer_char

8bits, Opto-electronic transfer characteristics

int matrix_coef

8bits, Color primaries->YCbCr transform matrix

int hrd_param_flag

Presence of Hypothetical Reference Decoder parameters.

int psf

Progressive Segmented Frame.

int profile

Sequence header data for all Profiles TODO: choose between ints, uint8_ts and monobit flags.

int frmrtq_postproc

3bits,

int bitrtq_postproc

5bits, quantized framerate-based postprocessing strength

int fastuvmc

Rounding of qpel vector to hpel ? (not in Simple).

int extended_mv

Ext MV in P/B (not in Simple).

int dquant

How qscale varies with MBs, 2bits (not in Simple).

int vstransform

variable-size [48]x[48] transform type + info

int overlap

overlapped transforms in use

int quantizer_mode

2bits, quantizer mode used for sequence, see QUANT_*

int finterpflag

INTERPFRM present.

uint8_t mv_mode

Frame decoding info for all profiles.

uint8_t mv_mode2

Secondary MV coding mode (B frames).

int k_x

Number of bits for MVs (depends on MV range).

int k_y

Number of bits for MVs (depends on MV range).

int range_x

int range_y

MV range.

uint8_t pq

uint8_t altpq

Current/alternate frame quantizer scale.

const uint8_t * zz_8x4

Zigzag scan table for TT_8x4 coding mode.

const uint8_t * zz_4x8

Zigzag scan table for TT_4x8 coding mode.

uint8_t dquantfrm

pquant parameters

uint8_t dqprofile

uint8_t dqsbedge

uint8_t dqbilevel

int c_ac_table_index

AC coding set indexes.

int y_ac_table_index

Luma index from AC2FRM element.

uint8_t lumscale

Luma compensation parameters.

uint8_t lumshift

uint8_t rangeredfrm

Frame decoding info for S/M profiles only.

uint8_t interpfrm

uint8_t fcm

Frame decoding info for Advanced profile.

uint8_t numpanscanwin

uint8_t tfcntr

uint8_t rptfrm

uint8_t tff

uint8_t rff

uint16_t topleftx

uint16_t toplefty

uint16_t bottomrightx

uint16_t bottomrighty

uint8_t uvsamp

uint8_t postproc

int hrd_num_leaky_buckets

uint8_t bit_rate_exponent

uint8_t buffer_size_exponent

uint8_t * acpred_plane

AC prediction flags bitplane.

int acpred_is_raw

uint8_t * over_flags_plane

Overflags bitplane.

int overflg_is_raw

uint8_t condover

uint16_t * hrd_rate

uint16_t * hrd_buffer

uint8_t * hrd_fullness

uint8_t range_mapy_flag

uint8_t range_mapuv_flag

uint8_t range_mapy

uint8_t range_mapuv

Detailed Description

The VC1 Context.

Todo:: Change size wherever another size is more efficient Many members are only used for Advanced Profile

Definition at line 155 of file vc1.h.

Field Documentation

int VC1Context::a_avail

Definition at line 239 of file vc1.h.

Referenced by vc1_decode_b_mb(), vc1_decode_i_block_adv(), vc1_decode_i_blocks_adv(), vc1_decode_intra_block(), and vc1_decode_p_mb().

int VC1Context::acpred_is_raw

Definition at line 293 of file vc1.h.

Referenced by vc1_decode_i_blocks_adv(), and vc1_parse_frame_header_adv().

uint8_t* VC1Context::acpred_plane

AC prediction flags bitplane.

Definition at line 292 of file vc1.h.

Referenced by vc1_decode_end(), vc1_decode_i_blocks_adv(), vc1_decode_init(), and vc1_parse_frame_header_adv().

uint8_t VC1Context::altpq

Current/alternate frame quantizer scale.

Definition at line 216 of file vc1.h.

Referenced by vop_dquant_decoding().

int16_t VC1Context::bfraction

Relative position % anchors=> how to scale MVs.

Definition at line 248 of file vc1.h.

Referenced by vc1_decode_b_mb(), vc1_parse_frame_header(), vc1_parse_frame_header_adv(), and vc1_pred_b_mv().

uint8_t VC1Context::bfraction_lut_index

Index for BFRACTION value (see Table 40, reproduced into ff_vc1_bfraction_lut[]).

Definition at line 310 of file vc1.h.

Referenced by vc1_parse_frame_header(), and vc1_parse_frame_header_adv().

int VC1Context::bi_type

Definition at line 306 of file vc1.h.

Referenced by ff_vdpau_vc1_decode_picture(), vc1_decode_blocks(), vc1_parse_frame_header(), and vc1_parse_frame_header_adv().

uint8_t VC1Context::bit_rate_exponent

Definition at line 290 of file vc1.h.

int VC1Context::bitrtq_postproc

5bits, quantized framerate-based postprocessing strength

Definition at line 199 of file vc1.h.

Referenced by decode_sequence_header(), and decode_sequence_header_adv().

int VC1Context::bits

Definition at line 159 of file vc1.h.

Referenced by vc1_decode_b_blocks(), vc1_decode_frame(), vc1_decode_i_blocks(), vc1_decode_i_blocks_adv(), and vc1_decode_p_blocks().

uint16_t VC1Context::bottomrightx

Definition at line 285 of file vc1.h.

uint16_t VC1Context::bottomrighty

Definition at line 286 of file vc1.h.

int VC1Context::broadcast

TFF/RFF present.

Definition at line 179 of file vc1.h.

Referenced by decode_sequence_header_adv(), ff_vdpau_vc1_decode_picture(), and vc1_parse_frame_header_adv().

uint8_t VC1Context::broken_link

Broken link flag (BROKEN_LINK syntax element).

Definition at line 311 of file vc1.h.

Referenced by decode_entry_point().

int VC1Context::buffer_fullness

HRD info.

Definition at line 251 of file vc1.h.

uint8_t VC1Context::buffer_size_exponent

Definition at line 291 of file vc1.h.

int VC1Context::c_ac_table_index

AC coding set indexes.

See also:: 8.1.1.10, p(1)10 Chroma index from ACFRM element

Definition at line 230 of file vc1.h.

Referenced by vc1_decode_b_blocks(), vc1_decode_i_blocks(), vc1_decode_i_blocks_adv(), vc1_decode_p_blocks(), vc1_parse_frame_header(), and vc1_parse_frame_header_adv().

int VC1Context::c_avail

Definition at line 239 of file vc1.h.

Referenced by vc1_decode_b_mb(), vc1_decode_i_block_adv(), vc1_decode_i_blocks_adv(), vc1_decode_intra_block(), and vc1_decode_p_mb().

uint32_t * VC1Context::cbp

Definition at line 309 of file vc1.h.

Referenced by vc1_decode_init(), vc1_decode_p_blocks(), and vc1_decode_p_mb().

uint32_t* VC1Context::cbp_base

Definition at line 309 of file vc1.h.

Referenced by vc1_decode_end(), vc1_decode_init(), and vc1_decode_p_blocks().

VLC* VC1Context::cbpcy_vlc

CBPCY VLC table.

Definition at line 260 of file vc1.h.

Referenced by vc1_decode_b_mb(), vc1_decode_p_mb(), vc1_parse_frame_header(), and vc1_parse_frame_header_adv().

int VC1Context::chromaformat

2bits, 2=4:2:0, only defined

Definition at line 177 of file vc1.h.

Referenced by decode_sequence_header_adv().

uint8_t VC1Context::closed_entry

Closed entry point flag (CLOSED_ENTRY syntax element).

Definition at line 312 of file vc1.h.

Referenced by decode_entry_point().

int VC1Context::codingset

index of current table set from 11.8 to use for luma block decoding

Definition at line 236 of file vc1.h.

Referenced by vc1_decode_b_blocks(), vc1_decode_b_mb(), vc1_decode_i_blocks(), vc1_decode_i_blocks_adv(), vc1_decode_p_blocks(), and vc1_decode_p_mb().

int VC1Context::codingset2

index of current table set from 11.8 to use for chroma block decoding

Definition at line 237 of file vc1.h.

Referenced by vc1_decode_b_blocks(), vc1_decode_b_mb(), vc1_decode_i_blocks(), vc1_decode_i_blocks_adv(), vc1_decode_p_block(), vc1_decode_p_blocks(), and vc1_decode_p_mb().

int VC1Context::color_prim

8bits, chroma coordinates of the color primaries

Definition at line 185 of file vc1.h.

Referenced by decode_sequence_header_adv().

uint8_t VC1Context::condover

Definition at line 296 of file vc1.h.

Referenced by vc1_decode_i_blocks_adv(), and vc1_parse_frame_header_adv().

uint8_t* VC1Context::direct_mb_plane

bitplane for "direct" MBs

Definition at line 263 of file vc1.h.

Referenced by vc1_decode_b_mb(), vc1_decode_end(), vc1_decode_init(), vc1_parse_frame_header(), and vc1_parse_frame_header_adv().

int VC1Context::dmb_is_raw

direct mb plane is raw

Definition at line 265 of file vc1.h.

Referenced by vc1_decode_b_mb(), vc1_parse_frame_header(), and vc1_parse_frame_header_adv().

uint8_t VC1Context::dqbilevel

Definition at line 224 of file vc1.h.

Referenced by vop_dquant_decoding().

uint8_t VC1Context::dqprofile

Definition at line 222 of file vc1.h.

Referenced by vop_dquant_decoding().

uint8_t VC1Context::dqsbedge

Definition at line 223 of file vc1.h.

Referenced by vop_dquant_decoding().

int VC1Context::dquant

How qscale varies with MBs, 2bits (not in Simple).

Definition at line 202 of file vc1.h.

Referenced by decode_entry_point(), decode_sequence_header(), ff_vdpau_vc1_decode_picture(), vc1_parse_frame_header(), vc1_parse_frame_header_adv(), and vop_dquant_decoding().

uint8_t VC1Context::dquantfrm

pquant parameters

Definition at line 221 of file vc1.h.

Referenced by vc1_decode_ac_coeff(), vc1_parse_frame_header(), and vop_dquant_decoding().

int VC1Context::extended_dmv

Additional extended dmv range at P/B frame-level.

Definition at line 184 of file vc1.h.

Referenced by decode_entry_point(), and ff_vdpau_vc1_decode_picture().

int VC1Context::extended_mv

Ext MV in P/B (not in Simple).

Definition at line 201 of file vc1.h.

Referenced by decode_entry_point(), decode_sequence_header(), ff_vdpau_vc1_decode_picture(), vc1_parse_frame_header(), and vc1_parse_frame_header_adv().

int VC1Context::fastuvmc

Rounding of qpel vector to hpel ? (not in Simple).

Definition at line 200 of file vc1.h.

Referenced by decode_entry_point(), decode_sequence_header(), ff_vdpau_vc1_decode_picture(), vc1_interp_mc(), vc1_mc_1mv(), and vc1_mc_4mv_chroma().

uint8_t VC1Context::fcm

Frame decoding info for Advanced profile.

0->Progressive, 2->Frame-Interlace, 3->Field-Interlace

Definition at line 279 of file vc1.h.

Referenced by ff_vdpau_vc1_decode_picture(), and vc1_parse_frame_header_adv().

int VC1Context::finterpflag

INTERPFRM present.

Definition at line 206 of file vc1.h.

Referenced by decode_sequence_header(), decode_sequence_header_adv(), ff_vdpau_vc1_decode_picture(), vc1_parse_frame_header(), and vc1_parse_frame_header_adv().

int VC1Context::frmrtq_postproc

3bits,

Definition at line 198 of file vc1.h.

Referenced by decode_sequence_header(), and decode_sequence_header_adv().

uint8_t VC1Context::halfpq

Uniform quant over image and qp+.5.

Definition at line 249 of file vc1.h.

Referenced by vc1_decode_blocks(), vc1_decode_i_block(), vc1_decode_i_block_adv(), vc1_decode_intra_block(), vc1_decode_p_block(), vc1_parse_frame_header(), vc1_parse_frame_header_adv(), and vop_dquant_decoding().

uint16_t * VC1Context::hrd_buffer

Definition at line 297 of file vc1.h.

Referenced by vc1_decode_end(), and vc1_init_common().

uint8_t* VC1Context::hrd_fullness

Definition at line 298 of file vc1.h.

int VC1Context::hrd_num_leaky_buckets

Definition at line 289 of file vc1.h.

Referenced by decode_entry_point(), and decode_sequence_header_adv().

int VC1Context::hrd_param_flag

Presence of Hypothetical Reference Decoder parameters.

Definition at line 188 of file vc1.h.

Referenced by decode_entry_point(), and decode_sequence_header_adv().

uint16_t* VC1Context::hrd_rate

Definition at line 297 of file vc1.h.

Referenced by vc1_decode_end(), and vc1_init_common().

int VC1Context::interlace

Progressive/interlaced (RPTFTM syntax element).

Definition at line 180 of file vc1.h.

Referenced by decode_sequence_header_adv(), ff_vdpau_vc1_decode_picture(), vc1_decode_frame(), and vc1_parse_frame_header_adv().

uint8_t VC1Context::interpfrm

Definition at line 274 of file vc1.h.

Referenced by vc1_parse_frame_header(), and vc1_parse_frame_header_adv().

int VC1Context::k_x

Number of bits for MVs (depends on MV range).

Definition at line 213 of file vc1.h.

Referenced by vc1_parse_frame_header(), and vc1_parse_frame_header_adv().

int VC1Context::k_y

Number of bits for MVs (depends on MV range).

Definition at line 214 of file vc1.h.

Referenced by vc1_parse_frame_header(), and vc1_parse_frame_header_adv().

int VC1Context::level

Advanced Profile.

3bits, for Advanced/Simple Profile, provided by TS layer

Definition at line 176 of file vc1.h.

Referenced by decode_sequence_header_adv().

uint8_t VC1Context::lumscale

Luma compensation parameters.

Definition at line 245 of file vc1.h.

Referenced by vc1_parse_frame_header(), and vc1_parse_frame_header_adv().

uint8_t VC1Context::lumshift

Definition at line 246 of file vc1.h.

Referenced by vc1_parse_frame_header(), and vc1_parse_frame_header_adv().

uint8_t VC1Context::lutuv[256]

Definition at line 267 of file vc1.h.

Referenced by vc1_mc_1mv(), vc1_mc_4mv_chroma(), vc1_parse_frame_header(), and vc1_parse_frame_header_adv().

uint8_t VC1Context::luty[256]

Definition at line 267 of file vc1.h.

Referenced by vc1_mc_1mv(), vc1_mc_4mv_luma(), vc1_parse_frame_header(), and vc1_parse_frame_header_adv().

int VC1Context::matrix_coef

8bits, Color primaries->YCbCr transform matrix

Definition at line 187 of file vc1.h.

Referenced by decode_sequence_header_adv().

uint8_t * VC1Context::mb_type[3]

Definition at line 240 of file vc1.h.

Referenced by vc1_decode_b_mb(), vc1_decode_init(), vc1_decode_p_mb(), vc1_mc_4mv_chroma(), and vc1_pred_b_mv().

uint8_t* VC1Context::mb_type_base

Definition at line 240 of file vc1.h.

Referenced by vc1_decode_end(), and vc1_decode_init().

int VC1Context::multires

frame-level RESPIC syntax element present

Definition at line 165 of file vc1.h.

Referenced by decode_sequence_header(), ff_vdpau_vc1_decode_picture(), and vc1_parse_frame_header().

uint8_t VC1Context::mv_mode

Frame decoding info for all profiles.

MV coding monde

Definition at line 211 of file vc1.h.

Referenced by vc1_b_mc(), vc1_mc_1mv(), vc1_mc_4mv_chroma(), vc1_mc_4mv_luma(), vc1_parse_frame_header(), and vc1_parse_frame_header_adv().

uint8_t VC1Context::mv_mode2

Secondary MV coding mode (B frames).

Definition at line 212 of file vc1.h.

Referenced by vc1_b_mc(), vc1_parse_frame_header(), and vc1_parse_frame_header_adv().

int VC1Context::mv_type_is_raw

mv type mb plane is not coded

Definition at line 264 of file vc1.h.

Referenced by vc1_decode_p_mb(), vc1_parse_frame_header(), and vc1_parse_frame_header_adv().

uint8_t* VC1Context::mv_type_mb_plane

bitplane for mv_type == (4MV)

Definition at line 262 of file vc1.h.

Referenced by vc1_decode_end(), vc1_decode_init(), vc1_decode_p_mb(), vc1_parse_frame_header(), and vc1_parse_frame_header_adv().

uint8_t VC1Context::mvrange

Ranges:

0 -> [-64n 63.f] x [-32, 31.f]
1 -> [-128, 127.f] x [-64, 63.f]
2 -> [-512, 511.f] x [-128, 127.f]
3 -> [-1024, 1023.f] x [-256, 255.f].

Definition at line 258 of file vc1.h.

Referenced by vc1_init_common(), vc1_parse_frame_header(), and vc1_parse_frame_header_adv().

uint8_t VC1Context::numpanscanwin

Definition at line 280 of file vc1.h.

uint8_t* VC1Context::over_flags_plane

Overflags bitplane.

Definition at line 294 of file vc1.h.

Referenced by vc1_decode_end(), vc1_decode_i_blocks_adv(), vc1_decode_init(), and vc1_parse_frame_header_adv().

int VC1Context::overflg_is_raw

Definition at line 295 of file vc1.h.

Referenced by vc1_decode_i_blocks_adv(), and vc1_parse_frame_header_adv().

int VC1Context::overlap

overlapped transforms in use

Definition at line 204 of file vc1.h.

Referenced by decode_entry_point(), decode_sequence_header(), ff_vdpau_vc1_decode_picture(), vc1_decode_i_block(), vc1_decode_i_block_adv(), vc1_decode_i_blocks(), vc1_decode_intra_block(), vc1_decode_p_mb(), and vc1_parse_frame_header_adv().

int VC1Context::p_frame_skipped

Definition at line 305 of file vc1.h.

Referenced by vc1_decode_blocks(), and vc1_parse_frame_header_adv().

int VC1Context::panscanflag

NUMPANSCANWIN, TOPLEFT{X,Y}, BOTRIGHT{X,Y} present.

Definition at line 182 of file vc1.h.

Referenced by decode_entry_point(), ff_vdpau_vc1_decode_picture(), and vc1_parse_frame_header_adv().

uint8_t VC1Context::postproc

Definition at line 288 of file vc1.h.

Referenced by vc1_parse_frame_header_adv().

int VC1Context::postprocflag

Per-frame processing suggestion flag present.

Definition at line 178 of file vc1.h.

Referenced by decode_sequence_header_adv(), ff_vdpau_vc1_decode_picture(), and vc1_parse_frame_header_adv().

uint8_t VC1Context::pq

Definition at line 216 of file vc1.h.

Referenced by ff_vdpau_vc1_decode_picture(), vc1_decode_ac_coeff(), vc1_decode_b_mb(), vc1_decode_blocks(), vc1_decode_i_block(), vc1_decode_i_block_adv(), vc1_decode_i_blocks(), vc1_decode_i_blocks_adv(), vc1_decode_intra_block(), vc1_decode_p_block(), vc1_decode_p_mb(), vc1_init_common(), vc1_parse_frame_header(), vc1_parse_frame_header_adv(), and vop_dquant_decoding().

int VC1Context::pqindex

raw pqindex used in coding set selection

Definition at line 238 of file vc1.h.

Referenced by vc1_decode_b_blocks(), vc1_decode_i_blocks(), vc1_decode_i_blocks_adv(), vc1_decode_p_blocks(), vc1_parse_frame_header(), and vc1_parse_frame_header_adv().

uint8_t VC1Context::pquantizer

Uniform (over sequence) quantizer in use.

Definition at line 259 of file vc1.h.

Referenced by vc1_decode_blocks(), vc1_decode_i_block(), vc1_decode_i_block_adv(), vc1_decode_intra_block(), vc1_decode_p_block(), vc1_parse_frame_header(), and vc1_parse_frame_header_adv().

int VC1Context::profile

Sequence header data for all Profiles TODO: choose between ints, uint8_ts and monobit flags.

2bits, Profile

Definition at line 197 of file vc1.h.

Referenced by decode_sequence_header(), vc1_decode_blocks(), vc1_decode_frame(), vc1_decode_init(), vc1_interp_mc(), vc1_mc_1mv(), vc1_mc_4mv_chroma(), vc1_mc_4mv_luma(), and vc1_pred_b_mv().

int VC1Context::psf

Progressive Segmented Frame.

Definition at line 190 of file vc1.h.

Referenced by decode_sequence_header_adv(), ff_vdpau_vc1_decode_picture(), and vc1_parse_frame_header_adv().

int VC1Context::quantizer_mode

2bits, quantizer mode used for sequence, see QUANT_*

Definition at line 205 of file vc1.h.

Referenced by decode_entry_point(), decode_sequence_header(), ff_vdpau_vc1_decode_picture(), vc1_parse_frame_header(), and vc1_parse_frame_header_adv().

uint8_t VC1Context::range_mapuv

Definition at line 302 of file vc1.h.

Referenced by decode_entry_point(), and ff_vdpau_vc1_decode_picture().

uint8_t VC1Context::range_mapuv_flag

Definition at line 300 of file vc1.h.

Referenced by decode_entry_point(), and ff_vdpau_vc1_decode_picture().

uint8_t VC1Context::range_mapy

Definition at line 301 of file vc1.h.

Referenced by decode_entry_point(), and ff_vdpau_vc1_decode_picture().

uint8_t VC1Context::range_mapy_flag

Definition at line 299 of file vc1.h.

Referenced by decode_entry_point(), and ff_vdpau_vc1_decode_picture().

int VC1Context::range_x

Definition at line 215 of file vc1.h.

Referenced by vc1_decode_p_mb(), vc1_parse_frame_header(), vc1_parse_frame_header_adv(), and vc1_pred_b_mv().

int VC1Context::range_y

MV range.

Definition at line 215 of file vc1.h.

Referenced by vc1_decode_p_mb(), vc1_parse_frame_header(), vc1_parse_frame_header_adv(), and vc1_pred_b_mv().

int VC1Context::rangered

RANGEREDFRM (range reduction) syntax element present at frame level.

Definition at line 168 of file vc1.h.

Referenced by decode_sequence_header(), ff_vdpau_vc1_decode_picture(), and vc1_parse_frame_header().

uint8_t VC1Context::rangeredfrm

Frame decoding info for S/M profiles only.

out_sample = CLIP((in_sample-128)*2+128)

Definition at line 273 of file vc1.h.

Referenced by ff_vdpau_vc1_decode_picture(), vc1_decode_b_mb(), vc1_decode_p_mb(), vc1_interp_mc(), vc1_mc_1mv(), vc1_mc_4mv_chroma(), vc1_mc_4mv_luma(), vc1_parse_frame_header(), and vc1_put_block().

int VC1Context::refdist_flag

REFDIST syntax element present in II, IP, PI or PP field picture headers.

Definition at line 183 of file vc1.h.

Referenced by decode_entry_point(), and ff_vdpau_vc1_decode_picture().

int VC1Context::res_fasttx

reserved, always 1

Definition at line 166 of file vc1.h.

Referenced by decode_sequence_header().

int VC1Context::res_rtm_flag

reserved, set to 1

Definition at line 170 of file vc1.h.

Referenced by decode_sequence_header(), decode_sequence_header_adv(), and vc1_decode_frame().

int VC1Context::res_sm

Simple/Main Profile sequence header.

reserved, 2b

Definition at line 163 of file vc1.h.

Referenced by decode_sequence_header().

int VC1Context::res_transtab

reserved, always 0

Definition at line 167 of file vc1.h.

Referenced by decode_sequence_header().

int VC1Context::res_x8

reserved

Definition at line 164 of file vc1.h.

Referenced by decode_sequence_header(), and vc1_parse_frame_header().

int VC1Context::reserved

reserved

Definition at line 171 of file vc1.h.

uint8_t VC1Context::respic

Frame-level flag for resized images.

Definition at line 250 of file vc1.h.

Referenced by vc1_parse_frame_header().

uint8_t VC1Context::rff

Definition at line 282 of file vc1.h.

int VC1Context::rnd

rounding control

Definition at line 269 of file vc1.h.

Referenced by vc1_mc_1mv(), vc1_mc_4mv_chroma(), vc1_mc_4mv_luma(), vc1_parse_frame_header(), and vc1_parse_frame_header_adv().

uint8_t VC1Context::rptfrm

Definition at line 282 of file vc1.h.

Referenced by vc1_parse_frame_header_adv().

int VC1Context::skip_is_raw

skip mb plane is not coded

Definition at line 266 of file vc1.h.

Referenced by vc1_decode_b_mb(), vc1_decode_p_mb(), vc1_parse_frame_header(), and vc1_parse_frame_header_adv().

uint8_t VC1Context::tfcntr

Definition at line 281 of file vc1.h.

int VC1Context::tfcntrflag

TFCNTR present.

Definition at line 181 of file vc1.h.

Referenced by decode_sequence_header_adv(), ff_vdpau_vc1_decode_picture(), and vc1_parse_frame_header_adv().

uint8_t VC1Context::tff

Definition at line 282 of file vc1.h.

Referenced by vc1_parse_frame_header_adv().

uint16_t VC1Context::topleftx

Definition at line 283 of file vc1.h.

uint16_t VC1Context::toplefty

Definition at line 284 of file vc1.h.

int VC1Context::transfer_char

8bits, Opto-electronic transfer characteristics

Definition at line 186 of file vc1.h.

Referenced by decode_sequence_header_adv().

int VC1Context::tt_index

Index for Transform Type tables.

Definition at line 261 of file vc1.h.

Referenced by vc1_decode_b_mb(), vc1_decode_p_block(), vc1_decode_p_mb(), vc1_parse_frame_header(), and vc1_parse_frame_header_adv().

uint8_t VC1Context::ttblk4x4

Value of ttblk which indicates a 4x4 transform.

Definition at line 235 of file vc1.h.

int VC1Context::ttfrm

Transform type info present at frame level.

Definition at line 233 of file vc1.h.

Referenced by vc1_decode_b_mb(), vc1_decode_p_mb(), vc1_parse_frame_header(), and vc1_parse_frame_header_adv().

uint8_t VC1Context::ttmbf

Transform type flag.

Definition at line 234 of file vc1.h.

Referenced by vc1_decode_b_mb(), vc1_decode_p_block(), vc1_decode_p_mb(), vc1_parse_frame_header(), and vc1_parse_frame_header_adv().

int VC1Context::use_ic

use intensity compensation in B-frames

Definition at line 268 of file vc1.h.

Referenced by vc1_b_mc(), vc1_parse_frame_header(), and vc1_parse_frame_header_adv().

uint8_t VC1Context::uvsamp

Definition at line 287 of file vc1.h.

Referenced by vc1_parse_frame_header_adv().

int VC1Context::vstransform

variable-size [48]x[48] transform type + info

Definition at line 203 of file vc1.h.

Referenced by decode_entry_point(), decode_sequence_header(), ff_vdpau_vc1_decode_picture(), vc1_parse_frame_header(), and vc1_parse_frame_header_adv().

IntraX8Context VC1Context::x8

Definition at line 157 of file vc1.h.

Referenced by vc1_decode_blocks(), vc1_decode_end(), and vc1_decode_init().

int VC1Context::x8_type

Definition at line 307 of file vc1.h.

Referenced by vc1_decode_blocks(), and vc1_parse_frame_header().

int VC1Context::y_ac_table_index

Luma index from AC2FRM element.

Definition at line 231 of file vc1.h.

Referenced by vc1_decode_i_blocks(), vc1_decode_i_blocks_adv(), vc1_parse_frame_header(), and vc1_parse_frame_header_adv().

const uint8_t* VC1Context::zz_4x8

Zigzag scan table for TT_4x8 coding mode.

Definition at line 218 of file vc1.h.

Referenced by decode_sequence_header(), and vc1_decode_p_block().

const uint8_t* VC1Context::zz_8x4

Zigzag scan table for TT_8x4 coding mode.

Definition at line 217 of file vc1.h.

Referenced by decode_sequence_header(), and vc1_decode_p_block().

The documentation for this struct was generated from the following file:

libavcodec/vc1.h


Data Fields
MpegEncContext	s
IntraX8Context	x8
int	bits
int	ttfrm
	Transform type info present at frame level.
uint8_t	ttmbf
	Transform type flag.
uint8_t	ttblk4x4
	Value of ttblk which indicates a 4x4 transform.
int	codingset
	index of current table set from 11.8 to use for luma block decoding
int	codingset2
	index of current table set from 11.8 to use for chroma block decoding
int	pqindex
	raw pqindex used in coding set selection
int	a_avail
int	c_avail
uint8_t *	mb_type_base
uint8_t *	mb_type [3]
int16_t	bfraction
	Relative position % anchors=> how to scale MVs.
uint8_t	halfpq
	Uniform quant over image and qp+.5.
uint8_t	respic
	Frame-level flag for resized images.
int	buffer_fullness
	HRD info.
uint8_t	mvrange
	Ranges: 0 -> [-64n 63.f] x [-32, 31.f] 1 -> [-128, 127.f] x [-64, 63.f] 2 -> [-512, 511.f] x [-128, 127.f] 3 -> [-1024, 1023.f] x [-256, 255.f].
uint8_t	pquantizer
	Uniform (over sequence) quantizer in use.
VLC *	cbpcy_vlc
	CBPCY VLC table.
int	tt_index
	Index for Transform Type tables.
uint8_t *	mv_type_mb_plane
	bitplane for mv_type == (4MV)
uint8_t *	direct_mb_plane
	bitplane for "direct" MBs
int	mv_type_is_raw
	mv type mb plane is not coded
int	dmb_is_raw
	direct mb plane is raw
int	skip_is_raw
	skip mb plane is not coded
uint8_t	luty [256]
uint8_t	lutuv [256]
int	use_ic
	use intensity compensation in B-frames
int	rnd
	rounding control
int	p_frame_skipped
int	bi_type
int	x8_type
uint32_t *	cbp_base
uint32_t *	cbp
uint8_t	bfraction_lut_index
	Index for BFRACTION value (see Table 40, reproduced into ff_vc1_bfraction_lut[]).
uint8_t	broken_link
	Broken link flag (BROKEN_LINK syntax element).
uint8_t	closed_entry
	Closed entry point flag (CLOSED_ENTRY syntax element).

int	res_sm
	Simple/Main Profile sequence header.
int	res_x8
	reserved
int	multires
	frame-level RESPIC syntax element present
int	res_fasttx
	reserved, always 1
int	res_transtab
	reserved, always 0
int	rangered
	RANGEREDFRM (range reduction) syntax element present at frame level.
int	res_rtm_flag
	reserved, set to 1
int	reserved
	reserved

int	level
	Advanced Profile.
int	chromaformat
	2bits, 2=4:2:0, only defined
int	postprocflag
	Per-frame processing suggestion flag present.
int	broadcast
	TFF/RFF present.
int	interlace
	Progressive/interlaced (RPTFTM syntax element).
int	tfcntrflag
	TFCNTR present.
int	panscanflag
	NUMPANSCANWIN, TOPLEFT{X,Y}, BOTRIGHT{X,Y} present.
int	refdist_flag
	REFDIST syntax element present in II, IP, PI or PP field picture headers.
int	extended_dmv
	Additional extended dmv range at P/B frame-level.
int	color_prim
	8bits, chroma coordinates of the color primaries
int	transfer_char
	8bits, Opto-electronic transfer characteristics
int	matrix_coef
	8bits, Color primaries->YCbCr transform matrix
int	hrd_param_flag
	Presence of Hypothetical Reference Decoder parameters.
int	psf
	Progressive Segmented Frame.

int	profile
	Sequence header data for all Profiles TODO: choose between ints, uint8_ts and monobit flags.
int	frmrtq_postproc
	3bits,
int	bitrtq_postproc
	5bits, quantized framerate-based postprocessing strength
int	fastuvmc
	Rounding of qpel vector to hpel ? (not in Simple).
int	extended_mv
	Ext MV in P/B (not in Simple).
int	dquant
	How qscale varies with MBs, 2bits (not in Simple).
int	vstransform
	variable-size [48]x[48] transform type + info
int	overlap
	overlapped transforms in use
int	quantizer_mode
	2bits, quantizer mode used for sequence, see QUANT_*
int	finterpflag
	INTERPFRM present.

uint8_t	mv_mode
	Frame decoding info for all profiles.
uint8_t	mv_mode2
	Secondary MV coding mode (B frames).
int	k_x
	Number of bits for MVs (depends on MV range).
int	k_y
	Number of bits for MVs (depends on MV range).
int	range_x
int	range_y
	MV range.
uint8_t	pq
uint8_t	altpq
	Current/alternate frame quantizer scale.
const uint8_t *	zz_8x4
	Zigzag scan table for TT_8x4 coding mode.
const uint8_t *	zz_4x8
	Zigzag scan table for TT_4x8 coding mode.
uint8_t	dquantfrm
	pquant parameters
uint8_t	dqprofile
uint8_t	dqsbedge
uint8_t	dqbilevel

int	c_ac_table_index
	AC coding set indexes.
int	y_ac_table_index
	Luma index from AC2FRM element.

uint8_t	lumscale
	Luma compensation parameters.
uint8_t	lumshift

uint8_t	rangeredfrm
	Frame decoding info for S/M profiles only.
uint8_t	interpfrm

uint8_t	fcm
	Frame decoding info for Advanced profile.
uint8_t	numpanscanwin
uint8_t	tfcntr
uint8_t	rptfrm
uint8_t	tff
uint8_t	rff
uint16_t	topleftx
uint16_t	toplefty
uint16_t	bottomrightx
uint16_t	bottomrighty
uint8_t	uvsamp
uint8_t	postproc
int	hrd_num_leaky_buckets
uint8_t	bit_rate_exponent
uint8_t	buffer_size_exponent
uint8_t *	acpred_plane
	AC prediction flags bitplane.
int	acpred_is_raw
uint8_t *	over_flags_plane
	Overflags bitplane.
int	overflg_is_raw
uint8_t	condover
uint16_t *	hrd_rate
uint16_t *	hrd_buffer
uint8_t *	hrd_fullness
uint8_t	range_mapy_flag
uint8_t	range_mapuv_flag
uint8_t	range_mapy
uint8_t	range_mapuv