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vc1.h
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1 /*
2  * VC-1 and WMV3 decoder
3  * Copyright (c) 2006-2007 Konstantin Shishkov
4  * Partly based on vc9.c (c) 2005 Anonymous, Alex Beregszaszi, Michael Niedermayer
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 #ifndef AVCODEC_VC1_H
24 #define AVCODEC_VC1_H
25 
26 #include "avcodec.h"
27 #include "get_bits.h"
28 #include "h264chroma.h"
29 #include "mpegvideo.h"
30 #include "intrax8.h"
31 #include "vc1_common.h"
32 #include "vc1dsp.h"
33 
34 #include "libavutil/mem_internal.h"
35 
36 #define AC_VLC_BITS 9
37 
38 /** Sequence quantizer mode */
39 //@{
40 enum QuantMode {
41  QUANT_FRAME_IMPLICIT, ///< Implicitly specified at frame level
42  QUANT_FRAME_EXPLICIT, ///< Explicitly specified at frame level
43  QUANT_NON_UNIFORM, ///< Non-uniform quant used for all frames
44  QUANT_UNIFORM ///< Uniform quant used for all frames
45 };
46 //@}
47 
48 /** Where quant can be changed */
49 //@{
50 enum DQProfile {
55 };
56 //@}
57 
58 /** @name Where quant can be changed
59  */
60 //@{
66 };
67 //@}
68 
69 /** Which pair of edges is quantized with ALTPQUANT */
70 //@{
76 };
77 //@}
78 
79 /** MV modes for P-frames */
80 //@{
81 enum MVModes {
87 };
88 //@}
89 
90 /** MBMODE for interlaced frame P-picture */
91 //@{
99 };
100 //@}
101 
102 /** @name MV types for B-frames */
103 //@{
104 enum BMVTypes {
109 };
110 //@}
111 
112 /** @name Block types for P/B-frames */
113 //@{
118  TT_8X4, // both halves
121  TT_4X8, // both halves
123 };
124 //@}
125 
126 enum CodingSet {
135 };
136 
137 /** @name Overlap conditions for Advanced Profile */
138 //@{
139 enum COTypes {
143 };
144 //@}
145 
146 /**
147  * FCM Frame Coding Mode
148  * @note some content might be marked interlaced
149  * but have fcm set to 0 as well (e.g. HD-DVD)
150  */
152  PROGRESSIVE = 0, ///< in the bitstream is reported as 00b
153  ILACE_FRAME, ///< in the bitstream is reported as 10b
154  ILACE_FIELD ///< in the bitstream is reported as 11b
155 };
156 
157 /**
158  * Imode types
159  * @{
160  */
161 enum Imode {
169 };
170 /** @} */ //imode defines
171 
172 /** The VC1 Context
173  * @todo Change size wherever another size is more efficient
174  * Many members are only used for Advanced Profile
175  */
176 typedef struct VC1Context{
182 
183  /** Simple/Main Profile sequence header */
184  //@{
185  int res_sprite; ///< reserved, sprite mode
186  int res_y411; ///< reserved, old interlaced mode
187  int res_x8; ///< reserved
188  int multires; ///< frame-level RESPIC syntax element present
189  int res_fasttx; ///< reserved, always 1
190  int res_transtab; ///< reserved, always 0
191  int rangered; ///< RANGEREDFRM (range reduction) syntax element present
192  ///< at frame level
193  int res_rtm_flag; ///< reserved, set to 1
194  int reserved; ///< reserved
195  //@}
196 
197  /** Advanced Profile */
198  //@{
199  int level; ///< 3 bits, for Advanced/Simple Profile, provided by TS layer
200  int chromaformat; ///< 2 bits, 2=4:2:0, only defined
201  int postprocflag; ///< Per-frame processing suggestion flag present
202  int broadcast; ///< TFF/RFF present
203  int interlace; ///< Progressive/interlaced (RPTFTM syntax element)
204  int tfcntrflag; ///< TFCNTR present
205  int panscanflag; ///< NUMPANSCANWIN, TOPLEFT{X,Y}, BOTRIGHT{X,Y} present
206  int refdist_flag; ///< REFDIST syntax element present in II, IP, PI or PP field picture headers
207  int extended_dmv; ///< Additional extended dmv range at P/B-frame-level
208  int color_prim; ///< 8 bits, chroma coordinates of the color primaries
209  int transfer_char; ///< 8 bits, Opto-electronic transfer characteristics
210  int matrix_coef; ///< 8 bits, Color primaries->YCbCr transform matrix
211  int hrd_param_flag; ///< Presence of Hypothetical Reference
212  ///< Decoder parameters
213  int psf; ///< Progressive Segmented Frame
214  //@}
215 
216  /** Sequence header data for all Profiles
217  * TODO: choose between ints, uint8_ts and monobit flags
218  */
219  //@{
220  int profile; ///< 2 bits, Profile
221  int frmrtq_postproc; ///< 3 bits,
222  int bitrtq_postproc; ///< 5 bits, quantized framerate-based postprocessing strength
225  int fastuvmc; ///< Rounding of qpel vector to hpel ? (not in Simple)
226  int extended_mv; ///< Ext MV in P/B (not in Simple)
227  int dquant; ///< How qscale varies with MBs, 2 bits (not in Simple)
228  int vstransform; ///< variable-size [48]x[48] transform type + info
229  int overlap; ///< overlapped transforms in use
230  int max_b_frames; ///< max number of B-frames
231  int quantizer_mode; ///< 2 bits, quantizer mode used for sequence, see QUANT_*
232  int finterpflag; ///< INTERPFRM present
233  //@}
234 
235  /** Frame decoding info for all profiles */
236  //@{
237  uint8_t mv_mode; ///< MV coding mode
238  uint8_t mv_mode2; ///< Secondary MV coding mode (B-frames)
239  int k_x; ///< Number of bits for MVs (depends on MV range)
240  int k_y; ///< Number of bits for MVs (depends on MV range)
241  int range_x, range_y; ///< MV range
242  uint8_t pq, altpq; ///< Current/alternate frame quantizer scale
243  uint8_t zz_8x8[4][64]; ///< Zigzag table for TT_8x8, permuted for IDCT
244  int left_blk_sh, top_blk_sh; ///< Either 3 or 0, positions of l/t in blk[]
245  const uint8_t* zz_8x4; ///< Zigzag scan table for TT_8x4 coding mode
246  const uint8_t* zz_4x8; ///< Zigzag scan table for TT_4x8 coding mode
247  /** pquant parameters */
248  //@{
249  uint8_t dquantfrm;
250  uint8_t dqprofile;
251  uint8_t dqsbedge;
252  uint8_t dqbilevel;
253  //@}
255  /** AC coding set indexes
256  * @see 8.1.1.10, p(1)10
257  */
258  //@{
259  int c_ac_table_index; ///< Chroma index from ACFRM element
260  int y_ac_table_index; ///< Luma index from AC2FRM element
261  //@}
264  int ttfrm; ///< Transform type info present at frame level
265  uint8_t ttmbf; ///< Transform type flag
266  int *ttblk_base, *ttblk; ///< Transform type at the block level
267  int codingset; ///< index of current table set from 11.8 to use for luma block decoding
268  int codingset2; ///< index of current table set from 11.8 to use for chroma block decoding
269  int pqindex; ///< raw pqindex used in coding set selection
271  uint8_t *mb_type_base, *mb_type;
272 
273 
274  /** Luma compensation parameters */
275  //@{
276  uint8_t lumscale;
277  uint8_t lumshift;
278  //@}
279  int16_t bfraction; ///< Relative position % anchors=> how to scale MVs
280  uint8_t halfpq; ///< Uniform quant over image and qp+.5
281  uint8_t respic; ///< Frame-level flag for resized images
282  int buffer_fullness; ///< HRD info
283  /** Ranges:
284  * -# 0 -> [-64n 63.f] x [-32, 31.f]
285  * -# 1 -> [-128, 127.f] x [-64, 63.f]
286  * -# 2 -> [-512, 511.f] x [-128, 127.f]
287  * -# 3 -> [-1024, 1023.f] x [-256, 255.f]
288  */
289  uint8_t mvrange; ///< Extended MV range flag
290  uint8_t pquantizer; ///< Uniform (over sequence) quantizer in use
291  const VLCElem *cbpcy_vlc; ///< CBPCY VLC table
292  int tt_index; ///< Index for Transform Type tables (to decode TTMB)
294  uint8_t* mv_type_mb_plane; ///< bitplane for mv_type == (4MV)
295  uint8_t* direct_mb_plane; ///< bitplane for "direct" MBs
296  uint8_t* forward_mb_plane; ///< bitplane for "forward" MBs
297  int mv_type_is_raw; ///< mv type mb plane is not coded
298  int dmb_is_raw; ///< direct mb plane is raw
299  int fmb_is_raw; ///< forward mb plane is raw
300  int skip_is_raw; ///< skip mb plane is not coded
301  uint8_t last_luty[2][256], last_lutuv[2][256]; ///< lookup tables used for intensity compensation
302  uint8_t aux_luty[2][256], aux_lutuv[2][256]; ///< lookup tables used for intensity compensation
303  uint8_t next_luty[2][256], next_lutuv[2][256]; ///< lookup tables used for intensity compensation
304  uint8_t (*curr_luty)[256] ,(*curr_lutuv)[256];
306  int last_interlaced, next_interlaced; ///< whether last_pic, next_pic is interlaced
307  int rnd; ///< rounding control
308  int cbptab;
309 
310  /** Frame decoding info for S/M profiles only */
311  //@{
312  uint8_t rangeredfrm; ///< out_sample = CLIP((in_sample-128)*2+128)
313  uint8_t interpfrm;
314  //@}
315 
316  /** Frame decoding info for Advanced profile */
317  //@{
319  uint8_t numpanscanwin;
320  uint8_t tfcntr;
321  uint8_t rptfrm, tff, rff;
322  uint8_t uvsamp;
323  uint8_t postproc;
327  uint8_t* acpred_plane; ///< AC prediction flags bitplane
329  uint8_t* over_flags_plane; ///< Overflags bitplane
331  uint8_t condover;
334  uint8_t range_mapy;
335  uint8_t range_mapuv;
336  //@}
337 
338  /** Frame decoding info for interlaced picture */
339  uint8_t dmvrange; ///< Extended differential MV range flag
341  int intcomp;
342  uint8_t lumscale2; ///< for interlaced field P picture
343  uint8_t lumshift2;
345  const VLCElem *imv_vlc;
348  uint8_t twomvbp;
349  uint8_t fourmvbp;
350  uint8_t* fieldtx_plane;
352  uint8_t zzi_8x8[64];
353  uint8_t *blk_mv_type_base, *blk_mv_type; ///< 0: frame MV, 1: field MV (interlaced frame)
354  uint8_t *mv_f_base, *mv_f[2]; ///< 0: MV obtained from same field, 1: opposite field
355  uint8_t *mv_f_next_base, *mv_f_next[2];
356  int field_mode; ///< 1 for interlaced field pictures
357  int fptype;
359  int refdist; ///< distance of the current picture from reference
360  int numref; ///< number of past field pictures used as reference
361  // 0 corresponds to 1 and 1 corresponds to 2 references
362  int reffield; ///< if numref = 0 (1 reference) then reffield decides which
363  // field to use among the two fields from previous frame
364  int intcompfield; ///< which of the two fields to be intensity compensated
365  // 0: both fields, 1: bottom field, 2: top field
366  int cur_field_type; ///< 0: top, 1: bottom
367  int ref_field_type[2]; ///< forward and backward reference field type (top or bottom)
369  int bmvtype;
370  int frfd, brfd; ///< reference frame distance (forward or backward)
374  int icbptab;
375  int imvtab;
378 
379  /** Frame decoding info for sprite modes */
380  //@{
385  uint8_t* sr_rows[2][2]; ///< Sprite resizer line cache
386  //@}
387 
389  int bi_type;
390  int x8_type;
391 
392  int16_t (*block)[6][64];
394  uint32_t *cbp_base, *cbp;
396  int16_t (*luma_mv_base)[2], (*luma_mv)[2];
397  uint8_t bfraction_lut_index; ///< Index for BFRACTION value (see Table 40, reproduced into ff_vc1_bfraction_lut[])
398  uint8_t broken_link; ///< Broken link flag (BROKEN_LINK syntax element)
399  uint8_t closed_entry; ///< Closed entry point flag (CLOSED_ENTRY syntax element)
400 
401  int end_mb_x; ///< Horizontal macroblock limit (used only by mss2)
402 
403  int parse_only; ///< Context is used within parser
404  int resync_marker; ///< could this stream contain resync markers
405 
406  DECLARE_ALIGNED_32(int16_t, blocks)[6][64];
407 } VC1Context;
408 
409 /**
410  * Decode Simple/Main Profiles sequence header
411  * @see Figure 7-8, p16-17
412  * @param avctx Codec context
413  * @param gb GetBit context initialized from Codec context extra_data
414  * @return Status
415  */
417 
419 
423 
428 
435 
436 void ff_vc1_mc_1mv(VC1Context *v, int dir);
437 void ff_vc1_mc_4mv_luma(VC1Context *v, int n, int dir, int avg);
438 void ff_vc1_mc_4mv_chroma(VC1Context *v, int dir);
439 void ff_vc1_mc_4mv_chroma4(VC1Context *v, int dir, int dir2, int avg);
440 
442 
443 #endif /* AVCODEC_VC1_H */
VC1Context::zz_8x8
uint8_t zz_8x8[4][64]
Zigzag table for TT_8x8, permuted for IDCT.
Definition: vc1.h:243
VC1Context::new_sprite
int new_sprite
Frame decoding info for sprite modes.
Definition: vc1.h:381
VC1Context::lumscale2
uint8_t lumscale2
for interlaced field P picture
Definition: vc1.h:342
DQSINGLE_BEDGE_TOP
@ DQSINGLE_BEDGE_TOP
Definition: vc1.h:63
IMODE_RAW
@ IMODE_RAW
Definition: vc1.h:162
VC1Context::next_luty
uint8_t next_luty[2][256]
Definition: vc1.h:303
VC1Context::mbmodetab
int mbmodetab
Definition: vc1.h:373
VC1Context::two_sprites
int two_sprites
Definition: vc1.h:382
VC1Context
The VC1 Context.
Definition: vc1.h:176
PROGRESSIVE
@ PROGRESSIVE
in the bitstream is reported as 00b
Definition: vc1.h:152
MBModesIntfr
MBModesIntfr
MBMODE for interlaced frame P-picture.
Definition: vc1.h:92
VC1Context::condover
uint8_t condover
Definition: vc1.h:331
VC1Context::left_blk_idx
int left_blk_idx
Definition: vc1.h:393
mem_internal.h
DQPROFILE_DOUBLE_EDGES
@ DQPROFILE_DOUBLE_EDGES
Definition: vc1.h:52
VC1Context::intcomp
int intcomp
Definition: vc1.h:341
VC1Context::topleft_blk_idx
int topleft_blk_idx
Definition: vc1.h:393
VC1Context::cbp
uint32_t * cbp
Definition: vc1.h:394
VC1Context::end_mb_x
int end_mb_x
Horizontal macroblock limit (used only by mss2)
Definition: vc1.h:401
VC1Context::overlap
int overlap
overlapped transforms in use
Definition: vc1.h:229
VC1Context::dqprofile
uint8_t dqprofile
Definition: vc1.h:250
VC1Context::interlace
int interlace
Progressive/interlaced (RPTFTM syntax element)
Definition: vc1.h:203
VC1Context::altpq
uint8_t altpq
Current/alternate frame quantizer scale.
Definition: vc1.h:242
VC1Context::curr_luty
uint8_t(* curr_luty)[256]
Definition: vc1.h:304
vc1dsp.h
ILACE_FRAME
@ ILACE_FRAME
in the bitstream is reported as 10b
Definition: vc1.h:153
VC1Context::dc_table_index
int dc_table_index
Definition: vc1.h:254
DQDOUBLE_BEDGE_BOTTOMLEFT
@ DQDOUBLE_BEDGE_BOTTOMLEFT
Definition: vc1.h:75
VC1Context::interpfrm
uint8_t interpfrm
Definition: vc1.h:313
TT_8X4_BOTTOM
@ TT_8X4_BOTTOM
Definition: vc1.h:116
ff_vc1_init_transposed_scantables
void ff_vc1_init_transposed_scantables(VC1Context *v)
Definition: vc1dec.c:482
VC1Context::sprite_height
int sprite_height
Definition: vc1.h:384
TT_8X4_TOP
@ TT_8X4_TOP
Definition: vc1.h:117
VC1Context::left_blk_sh
int left_blk_sh
Definition: vc1.h:244
DQProfile
DQProfile
Where quant can be changed.
Definition: vc1.h:50
BMV_TYPE_DIRECT
@ BMV_TYPE_DIRECT
Definition: vc1.h:108
MV_PMODE_1MV_HPEL_BILIN
@ MV_PMODE_1MV_HPEL_BILIN
Definition: vc1.h:82
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:421
ff_vc1_mc_4mv_luma
void ff_vc1_mc_4mv_luma(VC1Context *v, int n, int dir, int avg)
Do motion compensation for 4-MV macroblock - luminance block.
Definition: vc1_mc.c:452
ff_vc1_decode_init
int ff_vc1_decode_init(AVCodecContext *avctx)
Definition: vc1dec.c:451
CS_HIGH_RATE_INTER
@ CS_HIGH_RATE_INTER
Definition: vc1.h:134
VC1Context::reffield
int reffield
if numref = 0 (1 reference) then reffield decides which
Definition: vc1.h:362
VC1Context::cbp_base
uint32_t * cbp_base
Definition: vc1.h:394
VC1Context::fastuvmc
int fastuvmc
Rounding of qpel vector to hpel ? (not in Simple)
Definition: vc1.h:225
VC1Context::mv_type_mb_plane
uint8_t * mv_type_mb_plane
bitplane for mv_type == (4MV)
Definition: vc1.h:294
MV_PMODE_INTENSITY_COMP
@ MV_PMODE_INTENSITY_COMP
Definition: vc1.h:86
VC1Context::last_interlaced
int last_interlaced
Definition: vc1.h:306
VC1Context::zz_8x4
const uint8_t * zz_8x4
Zigzag scan table for TT_8x4 coding mode.
Definition: vc1.h:245
mpegvideo.h
VC1Context::imvtab
int imvtab
Definition: vc1.h:375
VC1Context::dmvrange
uint8_t dmvrange
Frame decoding info for interlaced picture.
Definition: vc1.h:339
VC1Context::closed_entry
uint8_t closed_entry
Closed entry point flag (CLOSED_ENTRY syntax element)
Definition: vc1.h:399
VC1Context::loop_filter
int loop_filter
Definition: vc1.h:223
VC1Context::next_interlaced
int next_interlaced
whether last_pic, next_pic is interlaced
Definition: vc1.h:306
VC1Context::numpanscanwin
uint8_t numpanscanwin
Definition: vc1.h:319
VC1Context::output_height
int output_height
Definition: vc1.h:384
VC1Context::twomvbptab
int twomvbptab
Definition: vc1.h:376
VC1Context::DECLARE_ALIGNED_32
DECLARE_ALIGNED_32(int16_t, blocks)[6][64]
QUANT_NON_UNIFORM
@ QUANT_NON_UNIFORM
Non-uniform quant used for all frames.
Definition: vc1.h:43
VC1Context::last_use_ic
int last_use_ic
Definition: vc1.h:305
CS_HIGH_RATE_INTRA
@ CS_HIGH_RATE_INTRA
Definition: vc1.h:133
VC1Context::rptfrm
uint8_t rptfrm
Definition: vc1.h:321
ff_vc1_interp_mc
void ff_vc1_interp_mc(VC1Context *v)
Motion compensation for direct or interpolated blocks in B-frames.
Definition: vc1_mc.c:1004
VC1Context::fieldtx_is_raw
int fieldtx_is_raw
Definition: vc1.h:351
VC1Context::last_lutuv
uint8_t last_lutuv[2][256]
lookup tables used for intensity compensation
Definition: vc1.h:301
DQSINGLE_BEDGE_LEFT
@ DQSINGLE_BEDGE_LEFT
Definition: vc1.h:62
ILACE_FIELD
@ ILACE_FIELD
in the bitstream is reported as 11b
Definition: vc1.h:154
VC1Context::multires
int multires
frame-level RESPIC syntax element present
Definition: vc1.h:188
CS_LOW_MOT_INTER
@ CS_LOW_MOT_INTER
Definition: vc1.h:130
GetBitContext
Definition: get_bits.h:108
VC1Context::res_x8
int res_x8
reserved
Definition: vc1.h:187
VC1Context::first_pic_header_flag
int first_pic_header_flag
Definition: vc1.h:371
IMODE_DIFF2
@ IMODE_DIFF2
Definition: vc1.h:164
VC1Context::numref
int numref
number of past field pictures used as reference
Definition: vc1.h:360
MV_PMODE_INTFR_2MV_FIELD
@ MV_PMODE_INTFR_2MV_FIELD
Definition: vc1.h:94
ff_vc1_p_overlap_filter
void ff_vc1_p_overlap_filter(VC1Context *v)
Definition: vc1_loopfilter.c:161
VC1Context::n_allocated_blks
int n_allocated_blks
Definition: vc1.h:393
VC1Context::c_ac_table_index
int c_ac_table_index
AC coding set indexes.
Definition: vc1.h:259
VC1Context::k_y
int k_y
Number of bits for MVs (depends on MV range)
Definition: vc1.h:240
VC1Context::imv_vlc
const VLCElem * imv_vlc
Definition: vc1.h:345
VC1Context::dquant
int dquant
How qscale varies with MBs, 2 bits (not in Simple)
Definition: vc1.h:227
VC1Context::esc3_level_length
int esc3_level_length
Definition: vc1.h:262
ff_vc1_parse_frame_header_adv
int ff_vc1_parse_frame_header_adv(VC1Context *v, GetBitContext *gb)
Definition: vc1.c:836
CONDOVER_NONE
@ CONDOVER_NONE
Definition: vc1.h:140
VC1Context::refdist
int refdist
distance of the current picture from reference
Definition: vc1.h:359
CS_MID_RATE_INTER
@ CS_MID_RATE_INTER
Definition: vc1.h:132
VC1Context::mb_type
uint8_t * mb_type
Definition: vc1.h:271
VC1Context::twomvbp_vlc
const VLCElem * twomvbp_vlc
Definition: vc1.h:346
ff_vc1_parse_frame_header
int ff_vc1_parse_frame_header(VC1Context *v, GetBitContext *gb)
Definition: vc1.c:616
VC1Context::res_sprite
int res_sprite
Simple/Main Profile sequence header.
Definition: vc1.h:185
VC1Context::res_fasttx
int res_fasttx
reserved, always 1
Definition: vc1.h:189
QuantMode
QuantMode
Sequence quantizer mode.
Definition: vc1.h:40
VC1Context::range_mapuv_flag
uint8_t range_mapuv_flag
Definition: vc1.h:333
VC1Context::mv_f
uint8_t * mv_f[2]
0: MV obtained from same field, 1: opposite field
Definition: vc1.h:354
ff_vc1_mc_1mv
void ff_vc1_mc_1mv(VC1Context *v, int dir)
Do motion compensation over 1 macroblock Mostly adapted hpel_motion and qpel_motion from mpegvideo....
Definition: vc1_mc.c:172
VC1Context::postprocflag
int postprocflag
Per-frame processing suggestion flag present.
Definition: vc1.h:201
IMODE_NORM2
@ IMODE_NORM2
Definition: vc1.h:163
VC1Context::mb_type_base
uint8_t * mb_type_base
Definition: vc1.h:271
IMODE_DIFF6
@ IMODE_DIFF6
Definition: vc1.h:166
VC1Context::x8
IntraX8Context x8
Definition: vc1.h:179
DQPROFILE_SINGLE_EDGE
@ DQPROFILE_SINGLE_EDGE
Definition: vc1.h:53
VC1Context::over_flags_plane
uint8_t * over_flags_plane
Overflags bitplane.
Definition: vc1.h:329
TT_8X4
@ TT_8X4
Definition: vc1.h:118
VC1Context::rangered
int rangered
RANGEREDFRM (range reduction) syntax element present at frame level.
Definition: vc1.h:191
ff_vc1_decode_end
int ff_vc1_decode_end(AVCodecContext *avctx)
Close a MSS2/VC1/WMV3 decoder.
Definition: vc1dec.c:805
QUANT_FRAME_IMPLICIT
@ QUANT_FRAME_IMPLICIT
Implicitly specified at frame level.
Definition: vc1.h:41
get_bits.h
VC1Context::hrd_param_flag
int hrd_param_flag
Presence of Hypothetical Reference Decoder parameters.
Definition: vc1.h:211
VC1Context::tt_index
int tt_index
Index for Transform Type tables (to decode TTMB)
Definition: vc1.h:292
VC1Context::last_luty
uint8_t last_luty[2][256]
Definition: vc1.h:301
ff_vc1_i_overlap_filter
void ff_vc1_i_overlap_filter(VC1Context *v)
Definition: vc1_loopfilter.c:105
VC1Context::rnd
int rnd
rounding control
Definition: vc1.h:307
ff_vc1_init_common
void ff_vc1_init_common(VC1Context *v)
Init VC-1 specific tables and VC1Context members.
Definition: vc1dec.c:592
CS_HIGH_MOT_INTER
@ CS_HIGH_MOT_INTER
Definition: vc1.h:128
TT_4X8_LEFT
@ TT_4X8_LEFT
Definition: vc1.h:120
MVModes
MVModes
MV modes for P-frames.
Definition: vc1.h:81
ff_vc1_mc_4mv_chroma4
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: vc1_mc.c:839
IntraX8Context
Definition: intrax8.h:28
VC1Context::top_blk_sh
int top_blk_sh
Either 3 or 0, positions of l/t in blk[].
Definition: vc1.h:244
VC1Context::frfd
int frfd
Definition: vc1.h:370
VC1Context::mv_mode
uint8_t mv_mode
Frame decoding info for all profiles.
Definition: vc1.h:237
VC1Context::dqsbedge
uint8_t dqsbedge
Definition: vc1.h:251
VC1Context::pq
uint8_t pq
Definition: vc1.h:242
DQSINGLE_BEDGE_RIGHT
@ DQSINGLE_BEDGE_RIGHT
Definition: vc1.h:64
VC1Context::forward_mb_plane
uint8_t * forward_mb_plane
bitplane for "forward" MBs
Definition: vc1.h:296
VC1Context::pqindex
int pqindex
raw pqindex used in coding set selection
Definition: vc1.h:269
VC1Context::skip_is_raw
int skip_is_raw
skip mb plane is not coded
Definition: vc1.h:300
VC1Context::range_mapy_flag
uint8_t range_mapy_flag
Definition: vc1.h:332
VC1Context::direct_mb_plane
uint8_t * direct_mb_plane
bitplane for "direct" MBs
Definition: vc1.h:295
VC1Context::lumscale
uint8_t lumscale
Luma compensation parameters.
Definition: vc1.h:276
VC1Context::field_mode
int field_mode
1 for interlaced field pictures
Definition: vc1.h:356
ff_vc1_decode_blocks
void ff_vc1_decode_blocks(VC1Context *v)
Definition: vc1_block.c:2946
VC1Context::blk_mv_type_base
uint8_t * blk_mv_type_base
Definition: vc1.h:353
VC1Context::panscanflag
int panscanflag
NUMPANSCANWIN, TOPLEFT{X,Y}, BOTRIGHT{X,Y} present.
Definition: vc1.h:205
Imode
Imode
Imode types.
Definition: vc1.h:161
VC1Context::mvrange
uint8_t mvrange
Ranges:
Definition: vc1.h:289
VC1Context::a_avail
int a_avail
Definition: vc1.h:270
VC1Context::block
int16_t(* block)[6][64]
Definition: vc1.h:392
VC1Context::range_mapuv
uint8_t range_mapuv
Definition: vc1.h:335
CS_LOW_MOT_INTRA
@ CS_LOW_MOT_INTRA
Definition: vc1.h:129
VC1Context::fmb_is_raw
int fmb_is_raw
forward mb plane is raw
Definition: vc1.h:299
VC1Context::mbmode_vlc
const VLCElem * mbmode_vlc
Definition: vc1.h:344
VC1Context::vc1dsp
VC1DSPContext vc1dsp
Definition: vc1.h:181
TransformTypes
TransformTypes
Definition: vc1.h:114
VC1Context::resync_marker
int resync_marker
could this stream contain resync markers
Definition: vc1.h:404
ff_vc1_decode_sequence_header
int ff_vc1_decode_sequence_header(AVCodecContext *avctx, VC1Context *v, GetBitContext *gb)
Decode Simple/Main Profiles sequence header.
Definition: vc1.c:274
VC1Context::cbpcy_vlc
const VLCElem * cbpcy_vlc
CBPCY VLC table.
Definition: vc1.h:291
VC1Context::cbptab
int cbptab
Definition: vc1.h:308
VC1Context::luma_mv_base
int16_t(* luma_mv_base)[2]
Definition: vc1.h:396
QUANT_UNIFORM
@ QUANT_UNIFORM
Uniform quant used for all frames.
Definition: vc1.h:44
VC1Context::esc3_run_length
int esc3_run_length
Definition: vc1.h:263
VC1Context::halfpq
uint8_t halfpq
Uniform quant over image and qp+.5.
Definition: vc1.h:280
DQPROFILE_ALL_MBS
@ DQPROFILE_ALL_MBS
Definition: vc1.h:54
DQDOUBLE_BEDGE_TOPRIGHT
@ DQDOUBLE_BEDGE_TOPRIGHT
Definition: vc1.h:73
VC1Context::h264chroma
H264ChromaContext h264chroma
Definition: vc1.h:180
VC1Context::ttmbf
uint8_t ttmbf
Transform type flag.
Definition: vc1.h:265
ff_vc1_i_loop_filter
void ff_vc1_i_loop_filter(VC1Context *v)
Definition: vc1_loopfilter.c:271
VC1Context::refdist_flag
int refdist_flag
REFDIST syntax element present in II, IP, PI or PP field picture headers.
Definition: vc1.h:206
VC1Context::fieldtx_plane
uint8_t * fieldtx_plane
Definition: vc1.h:350
intrax8.h
VC1Context::intcompfield
int intcompfield
which of the two fields to be intensity compensated
Definition: vc1.h:364
VC1Context::fourmvbp
uint8_t fourmvbp
Definition: vc1.h:349
VC1Context::tfcntr
uint8_t tfcntr
Definition: vc1.h:320
DQDOUBLE_BEDGE_BOTTOMRIGHT
@ DQDOUBLE_BEDGE_BOTTOMRIGHT
Definition: vc1.h:74
CONDOVER_ALL
@ CONDOVER_ALL
Definition: vc1.h:141
DQSingleEdge
DQSingleEdge
Definition: vc1.h:61
VC1Context::mv_mode2
uint8_t mv_mode2
Secondary MV coding mode (B-frames)
Definition: vc1.h:238
ff_vc1_p_intfr_loop_filter
void ff_vc1_p_intfr_loop_filter(VC1Context *v)
Definition: vc1_loopfilter.c:911
VC1Context::mv_f_next
uint8_t * mv_f_next[2]
Definition: vc1.h:355
MV_PMODE_INTFR_4MV
@ MV_PMODE_INTFR_4MV
Definition: vc1.h:97
VC1Context::is_intra
uint8_t * is_intra
Definition: vc1.h:395
DQDoubleEdge
DQDoubleEdge
Which pair of edges is quantized with ALTPQUANT.
Definition: vc1.h:71
VC1Context::ttfrm
int ttfrm
Transform type info present at frame level.
Definition: vc1.h:264
VC1Context::codingset
int codingset
index of current table set from 11.8 to use for luma block decoding
Definition: vc1.h:267
ff_vc1_decode_entry_point
int ff_vc1_decode_entry_point(AVCodecContext *avctx, VC1Context *v, GetBitContext *gb)
Definition: vc1.c:493
VC1Context::ttblk_base
int * ttblk_base
Definition: vc1.h:266
VC1Context::mb_off
int mb_off
Definition: vc1.h:368
VC1Context::bfraction
int16_t bfraction
Relative position % anchors=> how to scale MVs.
Definition: vc1.h:279
ff_vc1_p_loop_filter
void ff_vc1_p_loop_filter(VC1Context *v)
Definition: vc1_loopfilter.c:471
VC1Context::parse_only
int parse_only
Context is used within parser.
Definition: vc1.h:403
MV_PMODE_MIXED_MV
@ MV_PMODE_MIXED_MV
Definition: vc1.h:85
VC1Context::zzi_8x8
uint8_t zzi_8x8[64]
Definition: vc1.h:352
VLCElem
Definition: vlc.h:32
BMV_TYPE_INTERPOLATED
@ BMV_TYPE_INTERPOLATED
Definition: vc1.h:107
VC1Context::sprite_width
int sprite_width
Definition: vc1.h:384
h264chroma.h
VC1Context::fourmvswitch
int fourmvswitch
Definition: vc1.h:340
VC1Context::rangeredfrm
uint8_t rangeredfrm
Frame decoding info for S/M profiles only.
Definition: vc1.h:312
avg
#define avg(a, b, c, d)
Definition: colorspacedsp_template.c:28
VC1Context::top_blk_idx
int top_blk_idx
Definition: vc1.h:393
VC1Context::chromaformat
int chromaformat
2 bits, 2=4:2:0, only defined
Definition: vc1.h:200
VC1Context::res_transtab
int res_transtab
reserved, always 0
Definition: vc1.h:190
VC1Context::next_use_ic
int next_use_ic
Definition: vc1.h:305
VC1Context::respic
uint8_t respic
Frame-level flag for resized images.
Definition: vc1.h:281
MV_PMODE_1MV_HPEL
@ MV_PMODE_1MV_HPEL
Definition: vc1.h:84
CS_HIGH_MOT_INTRA
@ CS_HIGH_MOT_INTRA
Definition: vc1.h:127
VC1Context::broken_link
uint8_t broken_link
Broken link flag (BROKEN_LINK syntax element)
Definition: vc1.h:398
VC1Context::tfcntrflag
int tfcntrflag
TFCNTR present.
Definition: vc1.h:204
VC1Context::fptype
int fptype
Definition: vc1.h:357
MV_PMODE_INTFR_INTRA
@ MV_PMODE_INTFR_INTRA
Definition: vc1.h:98
vc1_common.h
VC1Context::sr_rows
uint8_t * sr_rows[2][2]
Sprite resizer line cache.
Definition: vc1.h:385
CodingSet
CodingSet
Definition: vc1.h:126
VC1Context::cur_field_type
int cur_field_type
0: top, 1: bottom
Definition: vc1.h:366
QUANT_FRAME_EXPLICIT
@ QUANT_FRAME_EXPLICIT
Explicitly specified at frame level.
Definition: vc1.h:42
VC1Context::k_x
int k_x
Number of bits for MVs (depends on MV range)
Definition: vc1.h:239
MV_PMODE_INTFR_4MV_FIELD
@ MV_PMODE_INTFR_4MV_FIELD
Definition: vc1.h:96
VC1Context::range_x
int range_x
Definition: vc1.h:241
DQDOUBLE_BEDGE_TOPLEFT
@ DQDOUBLE_BEDGE_TOPLEFT
Definition: vc1.h:72
VC1Context::frmrtq_postproc
int frmrtq_postproc
3 bits,
Definition: vc1.h:221
VC1Context::max_b_frames
int max_b_frames
max number of B-frames
Definition: vc1.h:230
BMV_TYPE_FORWARD
@ BMV_TYPE_FORWARD
Definition: vc1.h:106
VC1Context::buffer_size_exponent
uint8_t buffer_size_exponent
Definition: vc1.h:326
VC1Context::s
MpegEncContext s
Definition: vc1.h:177
VC1Context::max_coded_height
int max_coded_height
Definition: vc1.h:224
VC1Context::extended_mv
int extended_mv
Ext MV in P/B (not in Simple)
Definition: vc1.h:226
VC1Context::reserved
int reserved
reserved
Definition: vc1.h:194
VC1Context::hrd_num_leaky_buckets
int hrd_num_leaky_buckets
Definition: vc1.h:324
VC1Context::zz_4x8
const uint8_t * zz_4x8
Zigzag scan table for TT_4x8 coding mode.
Definition: vc1.h:246
VC1Context::pic_header_flag
int pic_header_flag
Definition: vc1.h:372
VC1Context::ttblk
int * ttblk
Transform type at the block level.
Definition: vc1.h:266
VC1Context::is_intra_base
uint8_t * is_intra_base
Definition: vc1.h:395
COTypes
COTypes
Definition: vc1.h:139
VC1Context::res_y411
int res_y411
reserved, old interlaced mode
Definition: vc1.h:186
avcodec.h
VC1Context::fourmvbp_vlc
const VLCElem * fourmvbp_vlc
Definition: vc1.h:347
VC1DSPContext
Definition: vc1dsp.h:37
VC1Context::second_field
int second_field
Definition: vc1.h:358
VC1Context::y_ac_table_index
int y_ac_table_index
Luma index from AC2FRM element.
Definition: vc1.h:260
VC1Context::twomvbp
uint8_t twomvbp
Definition: vc1.h:348
VC1Context::ref_field_type
int ref_field_type[2]
forward and backward reference field type (top or bottom)
Definition: vc1.h:367
VC1Context::sprite_output_frame
AVFrame * sprite_output_frame
Definition: vc1.h:383
VC1Context::output_width
int output_width
Definition: vc1.h:384
VC1Context::aux_luty
uint8_t aux_luty[2][256]
Definition: vc1.h:302
VC1Context::color_prim
int color_prim
8 bits, chroma coordinates of the color primaries
Definition: vc1.h:208
VC1Context::overflg_is_raw
int overflg_is_raw
Definition: vc1.h:330
DQSINGLE_BEDGE_BOTTOM
@ DQSINGLE_BEDGE_BOTTOM
Definition: vc1.h:65
VC1Context::mv_f_next_base
uint8_t * mv_f_next_base
Definition: vc1.h:355
VC1Context::pquantizer
uint8_t pquantizer
Uniform (over sequence) quantizer in use.
Definition: vc1.h:290
CS_MID_RATE_INTRA
@ CS_MID_RATE_INTRA
Definition: vc1.h:131
VC1Context::codingset2
int codingset2
index of current table set from 11.8 to use for chroma block decoding
Definition: vc1.h:268
VC1Context::buffer_fullness
int buffer_fullness
HRD info.
Definition: vc1.h:282
BMV_TYPE_BACKWARD
@ BMV_TYPE_BACKWARD
Definition: vc1.h:105
AVCodecContext
main external API structure.
Definition: avcodec.h:431
VC1Context::p_frame_skipped
int p_frame_skipped
Definition: vc1.h:388
VC1Context::bfraction_lut_index
uint8_t bfraction_lut_index
Index for BFRACTION value (see Table 40, reproduced into ff_vc1_bfraction_lut[])
Definition: vc1.h:397
FrameCodingMode
FrameCodingMode
FCM Frame Coding Mode.
Definition: vc1.h:151
VC1Context::tff
uint8_t tff
Definition: vc1.h:321
VC1Context::x8_type
int x8_type
Definition: vc1.h:390
VC1Context::brfd
int brfd
reference frame distance (forward or backward)
Definition: vc1.h:370
VC1Context::res_rtm_flag
int res_rtm_flag
reserved, set to 1
Definition: vc1.h:193
VC1Context::fourmvbptab
int fourmvbptab
Definition: vc1.h:377
VC1Context::profile
int profile
Sequence header data for all Profiles TODO: choose between ints, uint8_ts and monobit flags.
Definition: vc1.h:220
VC1Context::mv_table_index
int mv_table_index
Definition: vc1.h:293
VC1Context::vstransform
int vstransform
variable-size [48]x[48] transform type + info
Definition: vc1.h:228
VC1Context::c_avail
int c_avail
Definition: vc1.h:270
BMVTypes
BMVTypes
Definition: vc1.h:104
ff_vc1_mc_4mv_chroma
void ff_vc1_mc_4mv_chroma(VC1Context *v, int dir)
Do motion compensation for 4-MV macroblock - both chroma blocks.
Definition: vc1_mc.c:634
VC1Context::lumshift2
uint8_t lumshift2
Definition: vc1.h:343
VC1Context::matrix_coef
int matrix_coef
8 bits, Color primaries->YCbCr transform matrix
Definition: vc1.h:210
VC1Context::bi_type
int bi_type
Definition: vc1.h:389
VC1Context::range_y
int range_y
MV range.
Definition: vc1.h:241
MV_PMODE_INTFR_1MV
@ MV_PMODE_INTFR_1MV
Definition: vc1.h:93
VC1Context::dqbilevel
uint8_t dqbilevel
Definition: vc1.h:252
VC1Context::mv_f_base
uint8_t * mv_f_base
Definition: vc1.h:354
TT_4X8
@ TT_4X8
Definition: vc1.h:121
VC1Context::next_lutuv
uint8_t next_lutuv[2][256]
lookup tables used for intensity compensation
Definition: vc1.h:303
VC1Context::fcm
enum FrameCodingMode fcm
Frame decoding info for Advanced profile.
Definition: vc1.h:318
VC1Context::mv_type_is_raw
int mv_type_is_raw
mv type mb plane is not coded
Definition: vc1.h:297
VC1Context::psf
int psf
Progressive Segmented Frame.
Definition: vc1.h:213
IMODE_COLSKIP
@ IMODE_COLSKIP
Definition: vc1.h:168
VC1Context::curr_use_ic
int * curr_use_ic
Definition: vc1.h:305
VC1Context::lumshift
uint8_t lumshift
Definition: vc1.h:277
MV_PMODE_INTFR_2MV
@ MV_PMODE_INTFR_2MV
Definition: vc1.h:95
VC1Context::broadcast
int broadcast
TFF/RFF present.
Definition: vc1.h:202
H264ChromaContext
Definition: h264chroma.h:27
VC1Context::bmvtype
int bmvtype
Definition: vc1.h:369
VC1Context::dmb_is_raw
int dmb_is_raw
direct mb plane is raw
Definition: vc1.h:298
VC1Context::cur_blk_idx
int cur_blk_idx
Definition: vc1.h:393
VC1Context::level
int level
Advanced Profile.
Definition: vc1.h:199
IMODE_ROWSKIP
@ IMODE_ROWSKIP
Definition: vc1.h:167
VC1Context::acpred_plane
uint8_t * acpred_plane
AC prediction flags bitplane.
Definition: vc1.h:327
TT_8X8
@ TT_8X8
Definition: vc1.h:115
VC1Context::acpred_is_raw
int acpred_is_raw
Definition: vc1.h:328
TT_4X8_RIGHT
@ TT_4X8_RIGHT
Definition: vc1.h:119
VC1Context::finterpflag
int finterpflag
INTERPFRM present.
Definition: vc1.h:232
VC1Context::transfer_char
int transfer_char
8 bits, Opto-electronic transfer characteristics
Definition: vc1.h:209
VC1Context::icbptab
int icbptab
Definition: vc1.h:374
VC1Context::blk_mv_type
uint8_t * blk_mv_type
0: frame MV, 1: field MV (interlaced frame)
Definition: vc1.h:353
ff_vc1_b_intfi_loop_filter
void ff_vc1_b_intfi_loop_filter(VC1Context *v)
Definition: vc1_loopfilter.c:1173
VC1Context::dquantfrm
uint8_t dquantfrm
pquant parameters
Definition: vc1.h:249
IMODE_NORM6
@ IMODE_NORM6
Definition: vc1.h:165
VC1Context::quantizer_mode
int quantizer_mode
2 bits, quantizer mode used for sequence, see QUANT_*
Definition: vc1.h:231
VC1Context::aux_use_ic
int aux_use_ic
Definition: vc1.h:305
CONDOVER_SELECT
@ CONDOVER_SELECT
Definition: vc1.h:142
MV_PMODE_1MV
@ MV_PMODE_1MV
Definition: vc1.h:83
VC1Context::postproc
uint8_t postproc
Definition: vc1.h:323
VC1Context::blocks_off
int blocks_off
Definition: vc1.h:368
TT_4X4
@ TT_4X4
Definition: vc1.h:122
VC1Context::range_mapy
uint8_t range_mapy
Definition: vc1.h:334
MpegEncContext
MpegEncContext.
Definition: mpegvideo.h:63
VC1Context::uvsamp
uint8_t uvsamp
Definition: vc1.h:322
VC1Context::gb
GetBitContext gb
Definition: vc1.h:178
VC1Context::max_coded_width
int max_coded_width
Definition: vc1.h:224
VC1Context::extended_dmv
int extended_dmv
Additional extended dmv range at P/B-frame-level.
Definition: vc1.h:207
VC1Context::bit_rate_exponent
uint8_t bit_rate_exponent
Definition: vc1.h:325
VC1Context::rff
uint8_t rff
Definition: vc1.h:321
VC1Context::aux_lutuv
uint8_t aux_lutuv[2][256]
lookup tables used for intensity compensation
Definition: vc1.h:302
DQPROFILE_FOUR_EDGES
@ DQPROFILE_FOUR_EDGES
Definition: vc1.h:51
VC1Context::bitrtq_postproc
int bitrtq_postproc
5 bits, quantized framerate-based postprocessing strength
Definition: vc1.h:222