VC9Context Struct Reference

Collaboration diagram for VC9Context:

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Data Fields

MpegEncContext s
int ttfrm
 Transform type info present at frame level.
uint8_t ttmbf
 Transform type flag.
int ttmb
 Transform type.
uint8_t ttblk4x4
 Value of ttblk which indicates a 4x4 transform.
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
uint8_t pquantizer
 Uniform (over sequence) quantizer in use.
uint8_t * previous_line_cbpcy
 To use for predicted CBPCY.
VLC * cbpcy_vlc
 CBPCY VLC table.
int tt_index
 Index for Transform Type tables.
BitPlane mv_type_mb_plane
 bitplane for mv_type == (4MV)
BitPlane skip_mb_plane
 bitplane for skipped MBs
BitPlane direct_mb_plane
 bitplane for "direct" MBs
int res_sm
 reserved, 2b
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
int res_rtm_flag
 reserved, set to 1
int reserved
 reserved
int profile
 2bits, Profile
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
 MV coding monde.
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).
uint8_t pq
uint8_t altpq
 Current/alternate frame quantizer scale.
uint8_t dquantfrm
uint8_t dqprofile
uint8_t dqsbedge
uint8_t dqbilevel
int c_ac_table_index
 Chroma index from ACFRM element.
int y_ac_table_index
 Luma index from AC2FRM element.
uint8_t lumscale
uint8_t lumshift
uint8_t rangeredfrm
 out_sample = CLIP((in_sample-128)*2+128)
uint8_t interpfrm

Detailed Description

The VC9 Context Change size wherever another size is more efficient Many members are only used for Advanced Profile

Definition at line 197 of file vc9.c.

Field Documentation

MpegEncContext VC9Context::s

Definition at line 198 of file vc9.c.

Referenced by bitplane_decoding(), decode_b_picture_primary_header(), decode_b_picture_secondary_header(), decode_i_picture_primary_header(), decode_i_picture_secondary_header(), decode_p_picture_primary_header(), decode_p_picture_secondary_header(), decode_sequence_header(), standard_decode_mbs(), standard_decode_picture_primary_header(), standard_decode_picture_secondary_header(), vc9_decode_b_mb(), vc9_decode_block(), vc9_decode_end(), vc9_decode_frame(), vc9_decode_i_mb(), vc9_decode_init(), vc9_decode_p_mb(), and vop_dquant_decoding().

int VC9Context::res_sm

reserved, 2b

Simple/Main Profile sequence header

Definition at line 202 of file vc9.c.

Referenced by decode_sequence_header().

int VC9Context::res_x8

reserved

Definition at line 203 of file vc9.c.

Referenced by decode_sequence_header().

int VC9Context::multires

frame-level RESPIC syntax element present

Definition at line 204 of file vc9.c.

Referenced by decode_p_picture_primary_header(), decode_sequence_header(), and vc9_decode_frame().

int VC9Context::res_fasttx

reserved, always 1

Definition at line 205 of file vc9.c.

Referenced by decode_sequence_header().

int VC9Context::res_transtab

reserved, always 0

Definition at line 206 of file vc9.c.

Referenced by decode_sequence_header().

int VC9Context::rangered

RANGEREDFRM (range reduction) syntax element present at frame level

Definition at line 207 of file vc9.c.

Referenced by decode_sequence_header(), and standard_decode_picture_primary_header().

int VC9Context::res_rtm_flag

reserved, set to 1

Definition at line 209 of file vc9.c.

Referenced by decode_sequence_header().

int VC9Context::reserved

reserved

Definition at line 210 of file vc9.c.

int VC9Context::profile

2bits, Profile

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

Definition at line 237 of file vc9.c.

Referenced by decode_b_picture_primary_header(), decode_i_picture_primary_header(), decode_i_picture_secondary_header(), decode_p_picture_primary_header(), decode_sequence_header(), vc9_decode_frame(), and vc9_decode_init().

int VC9Context::frmrtq_postproc

3bits,

Definition at line 238 of file vc9.c.

Referenced by decode_sequence_header().

int VC9Context::bitrtq_postproc

5bits, quantized framerate-based postprocessing strength

Definition at line 239 of file vc9.c.

Referenced by decode_sequence_header().

int VC9Context::fastuvmc

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

Definition at line 240 of file vc9.c.

Referenced by decode_sequence_header().

int VC9Context::extended_mv

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

Definition at line 241 of file vc9.c.

Referenced by decode_b_picture_primary_header(), decode_p_picture_primary_header(), and decode_sequence_header().

int VC9Context::dquant

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

Definition at line 242 of file vc9.c.

Referenced by decode_b_picture_secondary_header(), decode_p_picture_secondary_header(), decode_sequence_header(), and vop_dquant_decoding().

int VC9Context::vstransform

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

Definition at line 243 of file vc9.c.

Referenced by decode_b_picture_secondary_header(), decode_p_picture_secondary_header(), and decode_sequence_header().

int VC9Context::overlap

overlapped transforms in use

Definition at line 244 of file vc9.c.

Referenced by decode_i_picture_secondary_header(), and decode_sequence_header().

int VC9Context::quantizer_mode

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

Definition at line 245 of file vc9.c.

Referenced by decode_b_picture_primary_header(), decode_i_picture_primary_header(), decode_p_picture_primary_header(), and decode_sequence_header().

int VC9Context::finterpflag

INTERPFRM present.

Definition at line 246 of file vc9.c.

Referenced by decode_sequence_header(), and standard_decode_picture_primary_header().

uint8_t VC9Context::mv_mode

MV coding monde.

Frame decoding info for all profiles

Definition at line 251 of file vc9.c.

Referenced by decode_b_picture_primary_header(), decode_b_picture_secondary_header(), decode_p_picture_primary_header(), decode_p_picture_secondary_header(), standard_decode_mbs(), and vc9_decode_p_mb().

uint8_t VC9Context::mv_mode2

Secondary MV coding mode (B frames).

Definition at line 252 of file vc9.c.

Referenced by decode_p_picture_primary_header(), and decode_p_picture_secondary_header().

int VC9Context::k_x

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

Definition at line 253 of file vc9.c.

Referenced by standard_decode_mbs().

int VC9Context::k_y

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

Definition at line 254 of file vc9.c.

Referenced by standard_decode_mbs().

uint8_t VC9Context::pq

Definition at line 255 of file vc9.c.

Referenced by decode_b_picture_primary_header(), decode_i_picture_primary_header(), decode_i_picture_secondary_header(), decode_p_picture_primary_header(), standard_decode_mbs(), vc9_decode_b_mb(), vc9_decode_block(), vc9_decode_i_mb(), vc9_decode_p_mb(), vc9_init_common(), and vop_dquant_decoding().

uint8_t VC9Context::altpq

Current/alternate frame quantizer scale.

Definition at line 255 of file vc9.c.

Referenced by vop_dquant_decoding().

uint8_t VC9Context::dquantfrm

pquant parameters

Definition at line 258 of file vc9.c.

Referenced by vop_dquant_decoding().

uint8_t VC9Context::dqprofile

Definition at line 259 of file vc9.c.

Referenced by vop_dquant_decoding().

uint8_t VC9Context::dqsbedge

Definition at line 260 of file vc9.c.

Referenced by vop_dquant_decoding().

uint8_t VC9Context::dqbilevel

Definition at line 261 of file vc9.c.

Referenced by vop_dquant_decoding().

int VC9Context::c_ac_table_index

Chroma index from ACFRM element.

AC coding set indexes

See also:
8.1.1.10, p(1)10

Definition at line 267 of file vc9.c.

Referenced by standard_decode_picture_secondary_header().

int VC9Context::y_ac_table_index

Luma index from AC2FRM element.

Definition at line 268 of file vc9.c.

Referenced by standard_decode_picture_secondary_header().

int VC9Context::ttfrm

Transform type info present at frame level.

Definition at line 270 of file vc9.c.

Referenced by decode_b_picture_secondary_header(), and decode_p_picture_secondary_header().

uint8_t VC9Context::ttmbf

Transform type flag.

Definition at line 271 of file vc9.c.

Referenced by decode_b_picture_secondary_header(), decode_p_picture_secondary_header(), vc9_decode_b_mb(), and vc9_decode_p_mb().

int VC9Context::ttmb

Transform type.

Definition at line 272 of file vc9.c.

Referenced by vc9_decode_block().

uint8_t VC9Context::ttblk4x4

Value of ttblk which indicates a 4x4 transform.

Definition at line 273 of file vc9.c.

Referenced by standard_decode_mbs(), and vc9_decode_block().

uint8_t VC9Context::lumscale

Luma compensation parameters

Definition at line 276 of file vc9.c.

Referenced by decode_p_picture_primary_header().

uint8_t VC9Context::lumshift

Definition at line 277 of file vc9.c.

Referenced by decode_p_picture_primary_header().

int16_t VC9Context::bfraction

Relative position % anchors=> how to scale MVs.

Definition at line 279 of file vc9.c.

Referenced by decode_b_picture_primary_header(), and vc9_decode_b_mb().

uint8_t VC9Context::halfpq

Uniform quant over image and qp+.5.

Definition at line 280 of file vc9.c.

Referenced by decode_b_picture_primary_header(), decode_i_picture_primary_header(), and decode_p_picture_primary_header().

uint8_t VC9Context::respic

Frame-level flag for resized images.

Definition at line 281 of file vc9.c.

Referenced by decode_p_picture_primary_header().

int VC9Context::buffer_fullness

HRD info.

Definition at line 282 of file vc9.c.

Referenced by decode_b_picture_primary_header().

uint8_t VC9Context::mvrange

Ranges:

  1. 0 -> [-64n 63.f] x [-32, 31.f]
  2. 1 -> [-128, 127.f] x [-64, 63.f]
  3. 2 -> [-512, 511.f] x [-128, 127.f]
  4. 3 -> [-1024, 1023.f] x [-256, 255.f]

Definition at line 289 of file vc9.c.

Referenced by decode_b_picture_primary_header(), decode_p_picture_primary_header(), standard_decode_mbs(), and vc9_init_common().

uint8_t VC9Context::pquantizer

Uniform (over sequence) quantizer in use.

Definition at line 290 of file vc9.c.

Referenced by decode_b_picture_primary_header(), decode_i_picture_primary_header(), and decode_p_picture_primary_header().

uint8_t* VC9Context::previous_line_cbpcy

To use for predicted CBPCY.

Definition at line 291 of file vc9.c.

Referenced by vc9_decode_init().

VLC* VC9Context::cbpcy_vlc

CBPCY VLC table.

Definition at line 292 of file vc9.c.

Referenced by decode_b_picture_secondary_header(), decode_p_picture_secondary_header(), and vc9_decode_p_mb().

int VC9Context::tt_index

Index for Transform Type tables.

Definition at line 293 of file vc9.c.

Referenced by standard_decode_mbs(), vc9_decode_b_mb(), vc9_decode_block(), and vc9_decode_p_mb().

BitPlane VC9Context::mv_type_mb_plane

bitplane for mv_type == (4MV)

Definition at line 294 of file vc9.c.

Referenced by decode_b_picture_secondary_header(), decode_p_picture_secondary_header(), vc9_decode_end(), vc9_decode_init(), vc9_decode_p_mb(), and vc9_init_common().

BitPlane VC9Context::skip_mb_plane

bitplane for skipped MBs

Definition at line 295 of file vc9.c.

Referenced by decode_b_picture_secondary_header(), decode_p_picture_secondary_header(), vc9_decode_b_mb(), vc9_decode_end(), vc9_decode_init(), vc9_decode_p_mb(), and vc9_init_common().

BitPlane VC9Context::direct_mb_plane

bitplane for "direct" MBs

Definition at line 296 of file vc9.c.

Referenced by decode_b_picture_secondary_header(), vc9_decode_b_mb(), vc9_decode_end(), vc9_decode_init(), and vc9_init_common().

uint8_t VC9Context::rangeredfrm

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

Frame decoding info for S/M profiles only

Definition at line 300 of file vc9.c.

Referenced by standard_decode_picture_primary_header().

uint8_t VC9Context::interpfrm

Definition at line 301 of file vc9.c.

Referenced by standard_decode_picture_primary_header().

The documentation for this struct was generated from the following file:
Generated on Mon Apr 28 14:48:17 2008 for Cinelerra by  doxygen 1.5.5