FFmpeg
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 "h264chroma.h"
28 #include "mpegvideo.h"
29 #include "intrax8.h"
30 #include "vc1_common.h"
31 #include "vc1dsp.h"
32 
33 #define AC_VLC_BITS 9
34 
35 /** Sequence quantizer mode */
36 //@{
37 enum QuantMode {
38  QUANT_FRAME_IMPLICIT, ///< Implicitly specified at frame level
39  QUANT_FRAME_EXPLICIT, ///< Explicitly specified at frame level
40  QUANT_NON_UNIFORM, ///< Non-uniform quant used for all frames
41  QUANT_UNIFORM ///< Uniform quant used for all frames
42 };
43 //@}
44 
45 /** Where quant can be changed */
46 //@{
47 enum DQProfile {
52 };
53 //@}
54 
55 /** @name Where quant can be changed
56  */
57 //@{
63 };
64 //@}
65 
66 /** Which pair of edges is quantized with ALTPQUANT */
67 //@{
73 };
74 //@}
75 
76 /** MV modes for P-frames */
77 //@{
78 enum MVModes {
84 };
85 //@}
86 
87 /** MBMODE for interlaced frame P-picture */
88 //@{
96 };
97 //@}
98 
99 /** @name MV types for B-frames */
100 //@{
101 enum BMVTypes {
106 };
107 //@}
108 
109 /** @name Block types for P/B-frames */
110 //@{
115  TT_8X4, // both halves
118  TT_4X8, // both halves
120 };
121 //@}
122 
123 enum CodingSet {
132 };
133 
134 /** @name Overlap conditions for Advanced Profile */
135 //@{
136 enum COTypes {
140 };
141 //@}
142 
143 /**
144  * FCM Frame Coding Mode
145  * @note some content might be marked interlaced
146  * but have fcm set to 0 as well (e.g. HD-DVD)
147  */
149  PROGRESSIVE = 0, ///< in the bitstream is reported as 00b
150  ILACE_FRAME, ///< in the bitstream is reported as 10b
151  ILACE_FIELD ///< in the bitstream is reported as 11b
152 };
153 
154 /**
155  * Imode types
156  * @{
157  */
158 enum Imode {
166 };
167 /** @} */ //imode defines
168 
169 /** The VC1 Context
170  * @todo Change size wherever another size is more efficient
171  * Many members are only used for Advanced Profile
172  */
173 typedef struct VC1Context{
178 
179  /** Simple/Main Profile sequence header */
180  //@{
181  int res_sprite; ///< reserved, sprite mode
182  int res_y411; ///< reserved, old interlaced mode
183  int res_x8; ///< reserved
184  int multires; ///< frame-level RESPIC syntax element present
185  int res_fasttx; ///< reserved, always 1
186  int res_transtab; ///< reserved, always 0
187  int rangered; ///< RANGEREDFRM (range reduction) syntax element present
188  ///< at frame level
189  int res_rtm_flag; ///< reserved, set to 1
190  int reserved; ///< reserved
191  //@}
192 
193  /** Advanced Profile */
194  //@{
195  int level; ///< 3 bits, for Advanced/Simple Profile, provided by TS layer
196  int chromaformat; ///< 2 bits, 2=4:2:0, only defined
197  int postprocflag; ///< Per-frame processing suggestion flag present
198  int broadcast; ///< TFF/RFF present
199  int interlace; ///< Progressive/interlaced (RPTFTM syntax element)
200  int tfcntrflag; ///< TFCNTR present
201  int panscanflag; ///< NUMPANSCANWIN, TOPLEFT{X,Y}, BOTRIGHT{X,Y} present
202  int refdist_flag; ///< REFDIST syntax element present in II, IP, PI or PP field picture headers
203  int extended_dmv; ///< Additional extended dmv range at P/B-frame-level
204  int color_prim; ///< 8 bits, chroma coordinates of the color primaries
205  int transfer_char; ///< 8 bits, Opto-electronic transfer characteristics
206  int matrix_coef; ///< 8 bits, Color primaries->YCbCr transform matrix
207  int hrd_param_flag; ///< Presence of Hypothetical Reference
208  ///< Decoder parameters
209  int psf; ///< Progressive Segmented Frame
210  //@}
211 
212  /** Sequence header data for all Profiles
213  * TODO: choose between ints, uint8_ts and monobit flags
214  */
215  //@{
216  int profile; ///< 2 bits, Profile
217  int frmrtq_postproc; ///< 3 bits,
218  int bitrtq_postproc; ///< 5 bits, quantized framerate-based postprocessing strength
220  int fastuvmc; ///< Rounding of qpel vector to hpel ? (not in Simple)
221  int extended_mv; ///< Ext MV in P/B (not in Simple)
222  int dquant; ///< How qscale varies with MBs, 2 bits (not in Simple)
223  int vstransform; ///< variable-size [48]x[48] transform type + info
224  int overlap; ///< overlapped transforms in use
225  int quantizer_mode; ///< 2 bits, quantizer mode used for sequence, see QUANT_*
226  int finterpflag; ///< INTERPFRM present
227  //@}
228 
229  /** Frame decoding info for all profiles */
230  //@{
231  uint8_t mv_mode; ///< MV coding mode
232  uint8_t mv_mode2; ///< Secondary MV coding mode (B-frames)
233  int k_x; ///< Number of bits for MVs (depends on MV range)
234  int k_y; ///< Number of bits for MVs (depends on MV range)
235  int range_x, range_y; ///< MV range
236  uint8_t pq, altpq; ///< Current/alternate frame quantizer scale
237  uint8_t zz_8x8[4][64]; ///< Zigzag table for TT_8x8, permuted for IDCT
238  int left_blk_sh, top_blk_sh; ///< Either 3 or 0, positions of l/t in blk[]
239  const uint8_t* zz_8x4; ///< Zigzag scan table for TT_8x4 coding mode
240  const uint8_t* zz_4x8; ///< Zigzag scan table for TT_4x8 coding mode
241  /** pquant parameters */
242  //@{
243  uint8_t dquantfrm;
244  uint8_t dqprofile;
245  uint8_t dqsbedge;
246  uint8_t dqbilevel;
247  //@}
248  /** AC coding set indexes
249  * @see 8.1.1.10, p(1)10
250  */
251  //@{
252  int c_ac_table_index; ///< Chroma index from ACFRM element
253  int y_ac_table_index; ///< Luma index from AC2FRM element
254  //@}
255  int ttfrm; ///< Transform type info present at frame level
256  uint8_t ttmbf; ///< Transform type flag
257  int *ttblk_base, *ttblk; ///< Transform type at the block level
258  int codingset; ///< index of current table set from 11.8 to use for luma block decoding
259  int codingset2; ///< index of current table set from 11.8 to use for chroma block decoding
260  int pqindex; ///< raw pqindex used in coding set selection
262  uint8_t *mb_type_base, *mb_type[3];
263 
264 
265  /** Luma compensation parameters */
266  //@{
267  uint8_t lumscale;
268  uint8_t lumshift;
269  //@}
270  int16_t bfraction; ///< Relative position % anchors=> how to scale MVs
271  uint8_t halfpq; ///< Uniform quant over image and qp+.5
272  uint8_t respic; ///< Frame-level flag for resized images
273  int buffer_fullness; ///< HRD info
274  /** Ranges:
275  * -# 0 -> [-64n 63.f] x [-32, 31.f]
276  * -# 1 -> [-128, 127.f] x [-64, 63.f]
277  * -# 2 -> [-512, 511.f] x [-128, 127.f]
278  * -# 3 -> [-1024, 1023.f] x [-256, 255.f]
279  */
280  uint8_t mvrange; ///< Extended MV range flag
281  uint8_t pquantizer; ///< Uniform (over sequence) quantizer in use
282  VLC *cbpcy_vlc; ///< CBPCY VLC table
283  int tt_index; ///< Index for Transform Type tables (to decode TTMB)
284  uint8_t* mv_type_mb_plane; ///< bitplane for mv_type == (4MV)
285  uint8_t* direct_mb_plane; ///< bitplane for "direct" MBs
286  uint8_t* forward_mb_plane; ///< bitplane for "forward" MBs
287  int mv_type_is_raw; ///< mv type mb plane is not coded
288  int dmb_is_raw; ///< direct mb plane is raw
289  int fmb_is_raw; ///< forward mb plane is raw
290  int skip_is_raw; ///< skip mb plane is not coded
291  uint8_t last_luty[2][256], last_lutuv[2][256]; ///< lookup tables used for intensity compensation
292  uint8_t aux_luty[2][256], aux_lutuv[2][256]; ///< lookup tables used for intensity compensation
293  uint8_t next_luty[2][256], next_lutuv[2][256]; ///< lookup tables used for intensity compensation
294  uint8_t (*curr_luty)[256] ,(*curr_lutuv)[256];
296  int rnd; ///< rounding control
297  int cbptab;
298 
299  /** Frame decoding info for S/M profiles only */
300  //@{
301  uint8_t rangeredfrm; ///< out_sample = CLIP((in_sample-128)*2+128)
302  uint8_t interpfrm;
303  //@}
304 
305  /** Frame decoding info for Advanced profile */
306  //@{
308  uint8_t numpanscanwin;
309  uint8_t tfcntr;
310  uint8_t rptfrm, tff, rff;
311  uint16_t topleftx;
312  uint16_t toplefty;
313  uint16_t bottomrightx;
314  uint16_t bottomrighty;
315  uint8_t uvsamp;
316  uint8_t postproc;
320  uint8_t* acpred_plane; ///< AC prediction flags bitplane
322  uint8_t* over_flags_plane; ///< Overflags bitplane
324  uint8_t condover;
327  uint8_t range_mapy;
328  uint8_t range_mapuv;
329  //@}
330 
331  /** Frame decoding info for interlaced picture */
332  uint8_t dmvrange; ///< Extended differential MV range flag
334  int intcomp;
335  uint8_t lumscale2; ///< for interlaced field P picture
336  uint8_t lumshift2;
341  uint8_t twomvbp;
342  uint8_t fourmvbp;
343  uint8_t* fieldtx_plane;
345  uint8_t zzi_8x8[64];
346  uint8_t *blk_mv_type_base, *blk_mv_type; ///< 0: frame MV, 1: field MV (interlaced frame)
347  uint8_t *mv_f_base, *mv_f[2]; ///< 0: MV obtained from same field, 1: opposite field
348  uint8_t *mv_f_next_base, *mv_f_next[2];
349  int field_mode; ///< 1 for interlaced field pictures
350  int fptype;
352  int refdist; ///< distance of the current picture from reference
353  int numref; ///< number of past field pictures used as reference
354  // 0 corresponds to 1 and 1 corresponds to 2 references
355  int reffield; ///< if numref = 0 (1 reference) then reffield decides which
356  // field to use among the two fields from previous frame
357  int intcompfield; ///< which of the two fields to be intensity compensated
358  // 0: both fields, 1: bottom field, 2: top field
359  int cur_field_type; ///< 0: top, 1: bottom
360  int ref_field_type[2]; ///< forward and backward reference field type (top or bottom)
362  int qs_last; ///< if qpel has been used in the previous (tr.) picture
363  int bmvtype;
364  int frfd, brfd; ///< reference frame distance (forward or backward)
368  int icbptab;
369  int imvtab;
372 
373  /** Frame decoding info for sprite modes */
374  //@{
379  uint8_t* sr_rows[2][2]; ///< Sprite resizer line cache
380  //@}
381 
383  int bi_type;
384  int x8_type;
385 
386  int16_t (*block)[6][64];
388  uint32_t *cbp_base, *cbp;
390  int16_t (*luma_mv_base)[2], (*luma_mv)[2];
391  uint8_t bfraction_lut_index; ///< Index for BFRACTION value (see Table 40, reproduced into ff_vc1_bfraction_lut[])
392  uint8_t broken_link; ///< Broken link flag (BROKEN_LINK syntax element)
393  uint8_t closed_entry; ///< Closed entry point flag (CLOSED_ENTRY syntax element)
394 
395  int end_mb_x; ///< Horizontal macroblock limit (used only by mss2)
396 
397  int parse_only; ///< Context is used within parser
398  int resync_marker; ///< could this stream contain resync markers
399 } VC1Context;
400 
401 /**
402  * Decode Simple/Main Profiles sequence header
403  * @see Figure 7-8, p16-17
404  * @param avctx Codec context
405  * @param gb GetBit context initialized from Codec context extra_data
406  * @return Status
407  */
409 
411 
415 
420 
427 
428 void ff_vc1_mc_1mv(VC1Context *v, int dir);
429 void ff_vc1_mc_4mv_luma(VC1Context *v, int n, int dir, int avg);
430 void ff_vc1_mc_4mv_chroma(VC1Context *v, int dir);
431 void ff_vc1_mc_4mv_chroma4(VC1Context *v, int dir, int dir2, int avg);
432 
434 
435 #endif /* AVCODEC_VC1_H */
VC1Context::zz_8x8
uint8_t zz_8x8[4][64]
Zigzag table for TT_8x8, permuted for IDCT.
Definition: vc1.h:237
VC1Context::new_sprite
int new_sprite
Frame decoding info for sprite modes.
Definition: vc1.h:375
VC1Context::lumscale2
uint8_t lumscale2
for interlaced field P picture
Definition: vc1.h:335
DQSINGLE_BEDGE_TOP
@ DQSINGLE_BEDGE_TOP
Definition: vc1.h:60
IMODE_RAW
@ IMODE_RAW
Definition: vc1.h:159
VC1Context::next_luty
uint8_t next_luty[2][256]
Definition: vc1.h:293
VC1Context::mbmodetab
int mbmodetab
Definition: vc1.h:367
VC1Context::two_sprites
int two_sprites
Definition: vc1.h:376
VC1Context
The VC1 Context.
Definition: vc1.h:173
PROGRESSIVE
@ PROGRESSIVE
in the bitstream is reported as 00b
Definition: vc1.h:149
MBModesIntfr
MBModesIntfr
MBMODE for interlaced frame P-picture.
Definition: vc1.h:89
VC1Context::condover
uint8_t condover
Definition: vc1.h:324
VC1Context::left_blk_idx
int left_blk_idx
Definition: vc1.h:387
DQPROFILE_DOUBLE_EDGES
@ DQPROFILE_DOUBLE_EDGES
Definition: vc1.h:49
VC1Context::intcomp
int intcomp
Definition: vc1.h:334
VC1Context::topleft_blk_idx
int topleft_blk_idx
Definition: vc1.h:387
VC1Context::cbp
uint32_t * cbp
Definition: vc1.h:388
VC1Context::end_mb_x
int end_mb_x
Horizontal macroblock limit (used only by mss2)
Definition: vc1.h:395
VC1Context::overlap
int overlap
overlapped transforms in use
Definition: vc1.h:224
VC1Context::dqprofile
uint8_t dqprofile
Definition: vc1.h:244
VC1Context::interlace
int interlace
Progressive/interlaced (RPTFTM syntax element)
Definition: vc1.h:199
VC1Context::altpq
uint8_t altpq
Current/alternate frame quantizer scale.
Definition: vc1.h:236
VC1Context::curr_luty
uint8_t(* curr_luty)[256]
Definition: vc1.h:294
vc1dsp.h
ILACE_FRAME
@ ILACE_FRAME
in the bitstream is reported as 10b
Definition: vc1.h:150
VC1Context::toplefty
uint16_t toplefty
Definition: vc1.h:312
DQDOUBLE_BEDGE_BOTTOMLEFT
@ DQDOUBLE_BEDGE_BOTTOMLEFT
Definition: vc1.h:72
VC1Context::interpfrm
uint8_t interpfrm
Definition: vc1.h:302
TT_8X4_BOTTOM
@ TT_8X4_BOTTOM
Definition: vc1.h:113
ff_vc1_init_transposed_scantables
void ff_vc1_init_transposed_scantables(VC1Context *v)
Definition: vc1dec.c:403
VC1Context::sprite_height
int sprite_height
Definition: vc1.h:378
TT_8X4_TOP
@ TT_8X4_TOP
Definition: vc1.h:114
VC1Context::left_blk_sh
int left_blk_sh
Definition: vc1.h:238
DQProfile
DQProfile
Where quant can be changed.
Definition: vc1.h:47
BMV_TYPE_DIRECT
@ BMV_TYPE_DIRECT
Definition: vc1.h:105
MV_PMODE_1MV_HPEL_BILIN
@ MV_PMODE_1MV_HPEL_BILIN
Definition: vc1.h:79
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:303
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
CS_HIGH_RATE_INTER
@ CS_HIGH_RATE_INTER
Definition: vc1.h:131
VC1Context::reffield
int reffield
if numref = 0 (1 reference) then reffield decides which
Definition: vc1.h:355
VC1Context::cbp_base
uint32_t * cbp_base
Definition: vc1.h:388
VC1Context::fastuvmc
int fastuvmc
Rounding of qpel vector to hpel ? (not in Simple)
Definition: vc1.h:220
VC1Context::mv_type_mb_plane
uint8_t * mv_type_mb_plane
bitplane for mv_type == (4MV)
Definition: vc1.h:284
MV_PMODE_INTENSITY_COMP
@ MV_PMODE_INTENSITY_COMP
Definition: vc1.h:83
VC1Context::zz_8x4
const uint8_t * zz_8x4
Zigzag scan table for TT_8x4 coding mode.
Definition: vc1.h:239
mpegvideo.h
VC1Context::imvtab
int imvtab
Definition: vc1.h:369
VC1Context::dmvrange
uint8_t dmvrange
Frame decoding info for interlaced picture.
Definition: vc1.h:332
VC1Context::closed_entry
uint8_t closed_entry
Closed entry point flag (CLOSED_ENTRY syntax element)
Definition: vc1.h:393
VC1Context::numpanscanwin
uint8_t numpanscanwin
Definition: vc1.h:308
VC1Context::output_height
int output_height
Definition: vc1.h:378
VC1Context::twomvbptab
int twomvbptab
Definition: vc1.h:370
QUANT_NON_UNIFORM
@ QUANT_NON_UNIFORM
Non-uniform quant used for all frames.
Definition: vc1.h:40
VC1Context::last_use_ic
int last_use_ic
Definition: vc1.h:295
CS_HIGH_RATE_INTRA
@ CS_HIGH_RATE_INTRA
Definition: vc1.h:130
VC1Context::rptfrm
uint8_t rptfrm
Definition: vc1.h:310
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:344
VC1Context::last_lutuv
uint8_t last_lutuv[2][256]
lookup tables used for intensity compensation
Definition: vc1.h:291
DQSINGLE_BEDGE_LEFT
@ DQSINGLE_BEDGE_LEFT
Definition: vc1.h:59
ILACE_FIELD
@ ILACE_FIELD
in the bitstream is reported as 11b
Definition: vc1.h:151
VC1Context::multires
int multires
frame-level RESPIC syntax element present
Definition: vc1.h:184
CS_LOW_MOT_INTER
@ CS_LOW_MOT_INTER
Definition: vc1.h:127
GetBitContext
Definition: get_bits.h:62
VC1Context::res_x8
int res_x8
reserved
Definition: vc1.h:183
VC1Context::first_pic_header_flag
int first_pic_header_flag
Definition: vc1.h:365
IMODE_DIFF2
@ IMODE_DIFF2
Definition: vc1.h:161
VC1Context::numref
int numref
number of past field pictures used as reference
Definition: vc1.h:353
MV_PMODE_INTFR_2MV_FIELD
@ MV_PMODE_INTFR_2MV_FIELD
Definition: vc1.h:91
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:387
VC1Context::c_ac_table_index
int c_ac_table_index
AC coding set indexes.
Definition: vc1.h:252
VC1Context::k_y
int k_y
Number of bits for MVs (depends on MV range)
Definition: vc1.h:234
VC1Context::dquant
int dquant
How qscale varies with MBs, 2 bits (not in Simple)
Definition: vc1.h:222
ff_vc1_parse_frame_header_adv
int ff_vc1_parse_frame_header_adv(VC1Context *v, GetBitContext *gb)
Definition: vc1.c:851
CONDOVER_NONE
@ CONDOVER_NONE
Definition: vc1.h:137
VC1Context::refdist
int refdist
distance of the current picture from reference
Definition: vc1.h:352
CS_MID_RATE_INTER
@ CS_MID_RATE_INTER
Definition: vc1.h:129
VC1Context::mb_type
uint8_t * mb_type[3]
Definition: vc1.h:262
ff_vc1_parse_frame_header
int ff_vc1_parse_frame_header(VC1Context *v, GetBitContext *gb)
Definition: vc1.c:627
VC1Context::res_sprite
int res_sprite
Simple/Main Profile sequence header.
Definition: vc1.h:181
VC1Context::res_fasttx
int res_fasttx
reserved, always 1
Definition: vc1.h:185
QuantMode
QuantMode
Sequence quantizer mode.
Definition: vc1.h:37
VC1Context::range_mapuv_flag
uint8_t range_mapuv_flag
Definition: vc1.h:326
VC1Context::mv_f
uint8_t * mv_f[2]
0: MV obtained from same field, 1: opposite field
Definition: vc1.h:347
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:197
IMODE_NORM2
@ IMODE_NORM2
Definition: vc1.h:160
VC1Context::imv_vlc
VLC * imv_vlc
Definition: vc1.h:338
VC1Context::mb_type_base
uint8_t * mb_type_base
Definition: vc1.h:262
IMODE_DIFF6
@ IMODE_DIFF6
Definition: vc1.h:163
VC1Context::x8
IntraX8Context x8
Definition: vc1.h:175
DQPROFILE_SINGLE_EDGE
@ DQPROFILE_SINGLE_EDGE
Definition: vc1.h:50
VC1Context::over_flags_plane
uint8_t * over_flags_plane
Overflags bitplane.
Definition: vc1.h:322
TT_8X4
@ TT_8X4
Definition: vc1.h:115
VC1Context::rangered
int rangered
RANGEREDFRM (range reduction) syntax element present at frame level.
Definition: vc1.h:187
ff_vc1_decode_end
int ff_vc1_decode_end(AVCodecContext *avctx)
Close a VC1/WMV3 decoder.
Definition: vc1dec.c:587
QUANT_FRAME_IMPLICIT
@ QUANT_FRAME_IMPLICIT
Implicitly specified at frame level.
Definition: vc1.h:38
VC1Context::hrd_param_flag
int hrd_param_flag
Presence of Hypothetical Reference Decoder parameters.
Definition: vc1.h:207
VC1Context::tt_index
int tt_index
Index for Transform Type tables (to decode TTMB)
Definition: vc1.h:283
VC1Context::last_luty
uint8_t last_luty[2][256]
Definition: vc1.h:291
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:296
ff_vc1_init_common
void ff_vc1_init_common(VC1Context *v)
Init VC-1 specific tables and VC1Context members.
Definition: vc1.c:1703
CS_HIGH_MOT_INTER
@ CS_HIGH_MOT_INTER
Definition: vc1.h:125
TT_4X8_LEFT
@ TT_4X8_LEFT
Definition: vc1.h:117
MVModes
MVModes
MV modes for P-frames.
Definition: vc1.h:78
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:29
VC1Context::top_blk_sh
int top_blk_sh
Either 3 or 0, positions of l/t in blk[].
Definition: vc1.h:238
VC1Context::frfd
int frfd
Definition: vc1.h:364
VC1Context::mv_mode
uint8_t mv_mode
Frame decoding info for all profiles.
Definition: vc1.h:231
VC1Context::dqsbedge
uint8_t dqsbedge
Definition: vc1.h:245
VC1Context::pq
uint8_t pq
Definition: vc1.h:236
DQSINGLE_BEDGE_RIGHT
@ DQSINGLE_BEDGE_RIGHT
Definition: vc1.h:61
VC1Context::forward_mb_plane
uint8_t * forward_mb_plane
bitplane for "forward" MBs
Definition: vc1.h:286
VC1Context::pqindex
int pqindex
raw pqindex used in coding set selection
Definition: vc1.h:260
VC1Context::skip_is_raw
int skip_is_raw
skip mb plane is not coded
Definition: vc1.h:290
VC1Context::range_mapy_flag
uint8_t range_mapy_flag
Definition: vc1.h:325
VC1Context::direct_mb_plane
uint8_t * direct_mb_plane
bitplane for "direct" MBs
Definition: vc1.h:285
VC1Context::lumscale
uint8_t lumscale
Luma compensation parameters.
Definition: vc1.h:267
VC1Context::field_mode
int field_mode
1 for interlaced field pictures
Definition: vc1.h:349
ff_vc1_decode_blocks
void ff_vc1_decode_blocks(VC1Context *v)
Definition: vc1_block.c:2993
VC1Context::blk_mv_type_base
uint8_t * blk_mv_type_base
Definition: vc1.h:346
VC1Context::panscanflag
int panscanflag
NUMPANSCANWIN, TOPLEFT{X,Y}, BOTRIGHT{X,Y} present.
Definition: vc1.h:201
Imode
Imode
Imode types.
Definition: vc1.h:158
VC1Context::qs_last
int qs_last
if qpel has been used in the previous (tr.) picture
Definition: vc1.h:362
VC1Context::mvrange
uint8_t mvrange
Ranges:
Definition: vc1.h:280
VC1Context::a_avail
int a_avail
Definition: vc1.h:261
VC1Context::block
int16_t(* block)[6][64]
Definition: vc1.h:386
VC1Context::range_mapuv
uint8_t range_mapuv
Definition: vc1.h:328
CS_LOW_MOT_INTRA
@ CS_LOW_MOT_INTRA
Definition: vc1.h:126
VC1Context::fmb_is_raw
int fmb_is_raw
forward mb plane is raw
Definition: vc1.h:289
VC1Context::vc1dsp
VC1DSPContext vc1dsp
Definition: vc1.h:177
VC1Context::twomvbp_vlc
VLC * twomvbp_vlc
Definition: vc1.h:339
TransformTypes
TransformTypes
Definition: vc1.h:111
VC1Context::resync_marker
int resync_marker
could this stream contain resync markers
Definition: vc1.h:398
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:277
VC1Context::cbptab
int cbptab
Definition: vc1.h:297
VC1Context::luma_mv_base
int16_t(* luma_mv_base)[2]
Definition: vc1.h:390
QUANT_UNIFORM
@ QUANT_UNIFORM
Uniform quant used for all frames.
Definition: vc1.h:41
VC1Context::halfpq
uint8_t halfpq
Uniform quant over image and qp+.5.
Definition: vc1.h:271
DQPROFILE_ALL_MBS
@ DQPROFILE_ALL_MBS
Definition: vc1.h:51
VC1Context::bottomrightx
uint16_t bottomrightx
Definition: vc1.h:313
DQDOUBLE_BEDGE_TOPRIGHT
@ DQDOUBLE_BEDGE_TOPRIGHT
Definition: vc1.h:70
VC1Context::h264chroma
H264ChromaContext h264chroma
Definition: vc1.h:176
VC1Context::ttmbf
uint8_t ttmbf
Transform type flag.
Definition: vc1.h:256
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:202
VC1Context::fieldtx_plane
uint8_t * fieldtx_plane
Definition: vc1.h:343
intrax8.h
VC1Context::intcompfield
int intcompfield
which of the two fields to be intensity compensated
Definition: vc1.h:357
VC1Context::fourmvbp
uint8_t fourmvbp
Definition: vc1.h:342
VC1Context::tfcntr
uint8_t tfcntr
Definition: vc1.h:309
DQDOUBLE_BEDGE_BOTTOMRIGHT
@ DQDOUBLE_BEDGE_BOTTOMRIGHT
Definition: vc1.h:71
CONDOVER_ALL
@ CONDOVER_ALL
Definition: vc1.h:138
DQSingleEdge
DQSingleEdge
Definition: vc1.h:58
VC1Context::mv_mode2
uint8_t mv_mode2
Secondary MV coding mode (B-frames)
Definition: vc1.h:232
ff_vc1_p_intfr_loop_filter
void ff_vc1_p_intfr_loop_filter(VC1Context *v)
Definition: vc1_loopfilter.c:909
VC1Context::mv_f_next
uint8_t * mv_f_next[2]
Definition: vc1.h:348
MV_PMODE_INTFR_4MV
@ MV_PMODE_INTFR_4MV
Definition: vc1.h:94
VC1Context::is_intra
uint8_t * is_intra
Definition: vc1.h:389
DQDoubleEdge
DQDoubleEdge
Which pair of edges is quantized with ALTPQUANT.
Definition: vc1.h:68
VC1Context::ttfrm
int ttfrm
Transform type info present at frame level.
Definition: vc1.h:255
VC1Context::codingset
int codingset
index of current table set from 11.8 to use for luma block decoding
Definition: vc1.h:258
ff_vc1_decode_entry_point
int ff_vc1_decode_entry_point(AVCodecContext *avctx, VC1Context *v, GetBitContext *gb)
Definition: vc1.c:509
VC1Context::ttblk_base
int * ttblk_base
Definition: vc1.h:257
VC1Context::mb_off
int mb_off
Definition: vc1.h:361
VC1Context::bfraction
int16_t bfraction
Relative position % anchors=> how to scale MVs.
Definition: vc1.h:270
ff_vc1_p_loop_filter
void ff_vc1_p_loop_filter(VC1Context *v)
Definition: vc1_loopfilter.c:470
VC1Context::parse_only
int parse_only
Context is used within parser.
Definition: vc1.h:397
MV_PMODE_MIXED_MV
@ MV_PMODE_MIXED_MV
Definition: vc1.h:82
VC1Context::zzi_8x8
uint8_t zzi_8x8[64]
Definition: vc1.h:345
BMV_TYPE_INTERPOLATED
@ BMV_TYPE_INTERPOLATED
Definition: vc1.h:104
VC1Context::sprite_width
int sprite_width
Definition: vc1.h:378
h264chroma.h
VC1Context::fourmvswitch
int fourmvswitch
Definition: vc1.h:333
VC1Context::rangeredfrm
uint8_t rangeredfrm
Frame decoding info for S/M profiles only.
Definition: vc1.h:301
avg
#define avg(a, b, c, d)
Definition: colorspacedsp_template.c:28
VC1Context::top_blk_idx
int top_blk_idx
Definition: vc1.h:387
VC1Context::chromaformat
int chromaformat
2 bits, 2=4:2:0, only defined
Definition: vc1.h:196
VC1Context::res_transtab
int res_transtab
reserved, always 0
Definition: vc1.h:186
VC1Context::next_use_ic
int next_use_ic
Definition: vc1.h:295
VC1Context::respic
uint8_t respic
Frame-level flag for resized images.
Definition: vc1.h:272
VC1Context::mbmode_vlc
VLC * mbmode_vlc
Definition: vc1.h:337
MV_PMODE_1MV_HPEL
@ MV_PMODE_1MV_HPEL
Definition: vc1.h:81
CS_HIGH_MOT_INTRA
@ CS_HIGH_MOT_INTRA
Definition: vc1.h:124
VC1Context::broken_link
uint8_t broken_link
Broken link flag (BROKEN_LINK syntax element)
Definition: vc1.h:392
VC1Context::tfcntrflag
int tfcntrflag
TFCNTR present.
Definition: vc1.h:200
VC1Context::fptype
int fptype
Definition: vc1.h:350
MV_PMODE_INTFR_INTRA
@ MV_PMODE_INTFR_INTRA
Definition: vc1.h:95
vc1_common.h
VC1Context::sr_rows
uint8_t * sr_rows[2][2]
Sprite resizer line cache.
Definition: vc1.h:379
ff_vc1_decode_init_alloc_tables
int ff_vc1_decode_init_alloc_tables(VC1Context *v)
Definition: vc1dec.c:324
CodingSet
CodingSet
Definition: vc1.h:123
VC1Context::cur_field_type
int cur_field_type
0: top, 1: bottom
Definition: vc1.h:359
QUANT_FRAME_EXPLICIT
@ QUANT_FRAME_EXPLICIT
Explicitly specified at frame level.
Definition: vc1.h:39
VC1Context::k_x
int k_x
Number of bits for MVs (depends on MV range)
Definition: vc1.h:233
MV_PMODE_INTFR_4MV_FIELD
@ MV_PMODE_INTFR_4MV_FIELD
Definition: vc1.h:93
VC1Context::range_x
int range_x
Definition: vc1.h:235
DQDOUBLE_BEDGE_TOPLEFT
@ DQDOUBLE_BEDGE_TOPLEFT
Definition: vc1.h:69
VC1Context::frmrtq_postproc
int frmrtq_postproc
3 bits,
Definition: vc1.h:217
BMV_TYPE_FORWARD
@ BMV_TYPE_FORWARD
Definition: vc1.h:103
VC1Context::buffer_size_exponent
uint8_t buffer_size_exponent
Definition: vc1.h:319
VC1Context::s
MpegEncContext s
Definition: vc1.h:174
VC1Context::max_coded_height
int max_coded_height
Definition: vc1.h:219
VC1Context::extended_mv
int extended_mv
Ext MV in P/B (not in Simple)
Definition: vc1.h:221
VC1Context::reserved
int reserved
reserved
Definition: vc1.h:190
VC1Context::hrd_num_leaky_buckets
int hrd_num_leaky_buckets
Definition: vc1.h:317
VC1Context::zz_4x8
const uint8_t * zz_4x8
Zigzag scan table for TT_4x8 coding mode.
Definition: vc1.h:240
VC1Context::pic_header_flag
int pic_header_flag
Definition: vc1.h:366
VC1Context::ttblk
int * ttblk
Transform type at the block level.
Definition: vc1.h:257
VC1Context::is_intra_base
uint8_t * is_intra_base
Definition: vc1.h:389
COTypes
COTypes
Definition: vc1.h:136
VC1Context::res_y411
int res_y411
reserved, old interlaced mode
Definition: vc1.h:182
avcodec.h
VC1DSPContext
Definition: vc1dsp.h:35
VC1Context::second_field
int second_field
Definition: vc1.h:351
VC1Context::y_ac_table_index
int y_ac_table_index
Luma index from AC2FRM element.
Definition: vc1.h:253
VC1Context::twomvbp
uint8_t twomvbp
Definition: vc1.h:341
VC1Context::ref_field_type
int ref_field_type[2]
forward and backward reference field type (top or bottom)
Definition: vc1.h:360
VC1Context::sprite_output_frame
AVFrame * sprite_output_frame
Definition: vc1.h:377
VC1Context::output_width
int output_width
Definition: vc1.h:378
VC1Context::aux_luty
uint8_t aux_luty[2][256]
Definition: vc1.h:292
VC1Context::color_prim
int color_prim
8 bits, chroma coordinates of the color primaries
Definition: vc1.h:204
VC1Context::overflg_is_raw
int overflg_is_raw
Definition: vc1.h:323
DQSINGLE_BEDGE_BOTTOM
@ DQSINGLE_BEDGE_BOTTOM
Definition: vc1.h:62
VC1Context::mv_f_next_base
uint8_t * mv_f_next_base
Definition: vc1.h:348
VC1Context::pquantizer
uint8_t pquantizer
Uniform (over sequence) quantizer in use.
Definition: vc1.h:281
CS_MID_RATE_INTRA
@ CS_MID_RATE_INTRA
Definition: vc1.h:128
VC1Context::codingset2
int codingset2
index of current table set from 11.8 to use for chroma block decoding
Definition: vc1.h:259
VC1Context::buffer_fullness
int buffer_fullness
HRD info.
Definition: vc1.h:273
BMV_TYPE_BACKWARD
@ BMV_TYPE_BACKWARD
Definition: vc1.h:102
AVCodecContext
main external API structure.
Definition: avcodec.h:379
VC1Context::p_frame_skipped
int p_frame_skipped
Definition: vc1.h:382
VC1Context::cbpcy_vlc
VLC * cbpcy_vlc
CBPCY VLC table.
Definition: vc1.h:282
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:391
FrameCodingMode
FrameCodingMode
FCM Frame Coding Mode.
Definition: vc1.h:148
VC1Context::tff
uint8_t tff
Definition: vc1.h:310
VLC
Definition: vlc.h:26
VC1Context::x8_type
int x8_type
Definition: vc1.h:384
VC1Context::brfd
int brfd
reference frame distance (forward or backward)
Definition: vc1.h:364
VC1Context::res_rtm_flag
int res_rtm_flag
reserved, set to 1
Definition: vc1.h:189
VC1Context::fourmvbptab
int fourmvbptab
Definition: vc1.h:371
VC1Context::profile
int profile
Sequence header data for all Profiles TODO: choose between ints, uint8_ts and monobit flags.
Definition: vc1.h:216
VC1Context::vstransform
int vstransform
variable-size [48]x[48] transform type + info
Definition: vc1.h:223
VC1Context::c_avail
int c_avail
Definition: vc1.h:261
BMVTypes
BMVTypes
Definition: vc1.h:101
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:336
VC1Context::matrix_coef
int matrix_coef
8 bits, Color primaries->YCbCr transform matrix
Definition: vc1.h:206
VC1Context::bi_type
int bi_type
Definition: vc1.h:383
VC1Context::range_y
int range_y
MV range.
Definition: vc1.h:235
MV_PMODE_INTFR_1MV
@ MV_PMODE_INTFR_1MV
Definition: vc1.h:90
VC1Context::dqbilevel
uint8_t dqbilevel
Definition: vc1.h:246
VC1Context::mv_f_base
uint8_t * mv_f_base
Definition: vc1.h:347
TT_4X8
@ TT_4X8
Definition: vc1.h:118
VC1Context::next_lutuv
uint8_t next_lutuv[2][256]
lookup tables used for intensity compensation
Definition: vc1.h:293
VC1Context::fcm
enum FrameCodingMode fcm
Frame decoding info for Advanced profile.
Definition: vc1.h:307
VC1Context::mv_type_is_raw
int mv_type_is_raw
mv type mb plane is not coded
Definition: vc1.h:287
VC1Context::psf
int psf
Progressive Segmented Frame.
Definition: vc1.h:209
IMODE_COLSKIP
@ IMODE_COLSKIP
Definition: vc1.h:165
VC1Context::curr_use_ic
int * curr_use_ic
Definition: vc1.h:295
VC1Context::lumshift
uint8_t lumshift
Definition: vc1.h:268
MV_PMODE_INTFR_2MV
@ MV_PMODE_INTFR_2MV
Definition: vc1.h:92
VC1Context::broadcast
int broadcast
TFF/RFF present.
Definition: vc1.h:198
VC1Context::topleftx
uint16_t topleftx
Definition: vc1.h:311
H264ChromaContext
Definition: h264chroma.h:27
VC1Context::bmvtype
int bmvtype
Definition: vc1.h:363
VC1Context::dmb_is_raw
int dmb_is_raw
direct mb plane is raw
Definition: vc1.h:288
VC1Context::cur_blk_idx
int cur_blk_idx
Definition: vc1.h:387
VC1Context::level
int level
Advanced Profile.
Definition: vc1.h:195
IMODE_ROWSKIP
@ IMODE_ROWSKIP
Definition: vc1.h:164
VC1Context::acpred_plane
uint8_t * acpred_plane
AC prediction flags bitplane.
Definition: vc1.h:320
TT_8X8
@ TT_8X8
Definition: vc1.h:112
VC1Context::fourmvbp_vlc
VLC * fourmvbp_vlc
Definition: vc1.h:340
VC1Context::acpred_is_raw
int acpred_is_raw
Definition: vc1.h:321
TT_4X8_RIGHT
@ TT_4X8_RIGHT
Definition: vc1.h:116
VC1Context::finterpflag
int finterpflag
INTERPFRM present.
Definition: vc1.h:226
VC1Context::bottomrighty
uint16_t bottomrighty
Definition: vc1.h:314
VC1Context::transfer_char
int transfer_char
8 bits, Opto-electronic transfer characteristics
Definition: vc1.h:205
VC1Context::icbptab
int icbptab
Definition: vc1.h:368
VC1Context::blk_mv_type
uint8_t * blk_mv_type
0: frame MV, 1: field MV (interlaced frame)
Definition: vc1.h:346
ff_vc1_b_intfi_loop_filter
void ff_vc1_b_intfi_loop_filter(VC1Context *v)
Definition: vc1_loopfilter.c:1172
VC1Context::dquantfrm
uint8_t dquantfrm
pquant parameters
Definition: vc1.h:243
IMODE_NORM6
@ IMODE_NORM6
Definition: vc1.h:162
VC1Context::quantizer_mode
int quantizer_mode
2 bits, quantizer mode used for sequence, see QUANT_*
Definition: vc1.h:225
VC1Context::aux_use_ic
int aux_use_ic
Definition: vc1.h:295
CONDOVER_SELECT
@ CONDOVER_SELECT
Definition: vc1.h:139
MV_PMODE_1MV
@ MV_PMODE_1MV
Definition: vc1.h:80
VC1Context::postproc
uint8_t postproc
Definition: vc1.h:316
VC1Context::blocks_off
int blocks_off
Definition: vc1.h:361
TT_4X4
@ TT_4X4
Definition: vc1.h:119
VC1Context::range_mapy
uint8_t range_mapy
Definition: vc1.h:327
MpegEncContext
MpegEncContext.
Definition: mpegvideo.h:81
VC1Context::uvsamp
uint8_t uvsamp
Definition: vc1.h:315
VC1Context::max_coded_width
int max_coded_width
Definition: vc1.h:219
VC1Context::extended_dmv
int extended_dmv
Additional extended dmv range at P/B-frame-level.
Definition: vc1.h:203
VC1Context::bit_rate_exponent
uint8_t bit_rate_exponent
Definition: vc1.h:318
VC1Context::rff
uint8_t rff
Definition: vc1.h:310
VC1Context::aux_lutuv
uint8_t aux_lutuv[2][256]
lookup tables used for intensity compensation
Definition: vc1.h:292
DQPROFILE_FOUR_EDGES
@ DQPROFILE_FOUR_EDGES
Definition: vc1.h:48
VC1Context::bitrtq_postproc
int bitrtq_postproc
5 bits, quantized framerate-based postprocessing strength
Definition: vc1.h:218