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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 "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  int bits;
180 
181  /** Simple/Main Profile sequence header */
182  //@{
183  int res_sprite; ///< reserved, sprite mode
184  int res_y411; ///< reserved, old interlaced mode
185  int res_x8; ///< reserved
186  int multires; ///< frame-level RESPIC syntax element present
187  int res_fasttx; ///< reserved, always 1
188  int res_transtab; ///< reserved, always 0
189  int rangered; ///< RANGEREDFRM (range reduction) syntax element present
190  ///< at frame level
191  int res_rtm_flag; ///< reserved, set to 1
192  int reserved; ///< reserved
193  //@}
194 
195  /** Advanced Profile */
196  //@{
197  int level; ///< 3bits, for Advanced/Simple Profile, provided by TS layer
198  int chromaformat; ///< 2bits, 2=4:2:0, only defined
199  int postprocflag; ///< Per-frame processing suggestion flag present
200  int broadcast; ///< TFF/RFF present
201  int interlace; ///< Progressive/interlaced (RPTFTM syntax element)
202  int tfcntrflag; ///< TFCNTR present
203  int panscanflag; ///< NUMPANSCANWIN, TOPLEFT{X,Y}, BOTRIGHT{X,Y} present
204  int refdist_flag; ///< REFDIST syntax element present in II, IP, PI or PP field picture headers
205  int extended_dmv; ///< Additional extended dmv range at P/B frame-level
206  int color_prim; ///< 8bits, chroma coordinates of the color primaries
207  int transfer_char; ///< 8bits, Opto-electronic transfer characteristics
208  int matrix_coef; ///< 8bits, Color primaries->YCbCr transform matrix
209  int hrd_param_flag; ///< Presence of Hypothetical Reference
210  ///< Decoder parameters
211  int psf; ///< Progressive Segmented Frame
212  //@}
213 
214  /** Sequence header data for all Profiles
215  * TODO: choose between ints, uint8_ts and monobit flags
216  */
217  //@{
218  int profile; ///< 2bits, Profile
219  int frmrtq_postproc; ///< 3bits,
220  int bitrtq_postproc; ///< 5bits, quantized framerate-based postprocessing strength
222  int fastuvmc; ///< Rounding of qpel vector to hpel ? (not in Simple)
223  int extended_mv; ///< Ext MV in P/B (not in Simple)
224  int dquant; ///< How qscale varies with MBs, 2bits (not in Simple)
225  int vstransform; ///< variable-size [48]x[48] transform type + info
226  int overlap; ///< overlapped transforms in use
227  int quantizer_mode; ///< 2bits, quantizer mode used for sequence, see QUANT_*
228  int finterpflag; ///< INTERPFRM present
229  //@}
230 
231  /** Frame decoding info for all profiles */
232  //@{
233  uint8_t mv_mode; ///< MV coding monde
234  uint8_t mv_mode2; ///< Secondary MV coding mode (B frames)
235  int k_x; ///< Number of bits for MVs (depends on MV range)
236  int k_y; ///< Number of bits for MVs (depends on MV range)
237  int range_x, range_y; ///< MV range
238  uint8_t pq, altpq; ///< Current/alternate frame quantizer scale
239  uint8_t zz_8x8[4][64]; ///< Zigzag table for TT_8x8, permuted for IDCT
240  int left_blk_sh, top_blk_sh; ///< Either 3 or 0, positions of l/t in blk[]
241  const uint8_t* zz_8x4; ///< Zigzag scan table for TT_8x4 coding mode
242  const uint8_t* zz_4x8; ///< Zigzag scan table for TT_4x8 coding mode
243  /** pquant parameters */
244  //@{
249  //@}
250  /** AC coding set indexes
251  * @see 8.1.1.10, p(1)10
252  */
253  //@{
254  int c_ac_table_index; ///< Chroma index from ACFRM element
255  int y_ac_table_index; ///< Luma index from AC2FRM element
256  //@}
257  int ttfrm; ///< Transform type info present at frame level
258  uint8_t ttmbf; ///< Transform type flag
259  int *ttblk_base, *ttblk; ///< Transform type at the block level
260  int codingset; ///< index of current table set from 11.8 to use for luma block decoding
261  int codingset2; ///< index of current table set from 11.8 to use for chroma block decoding
262  int pqindex; ///< raw pqindex used in coding set selection
265 
266 
267  /** Luma compensation parameters */
268  //@{
271  //@}
272  int16_t bfraction; ///< Relative position % anchors=> how to scale MVs
273  uint8_t halfpq; ///< Uniform quant over image and qp+.5
274  uint8_t respic; ///< Frame-level flag for resized images
275  int buffer_fullness; ///< HRD info
276  /** Ranges:
277  * -# 0 -> [-64n 63.f] x [-32, 31.f]
278  * -# 1 -> [-128, 127.f] x [-64, 63.f]
279  * -# 2 -> [-512, 511.f] x [-128, 127.f]
280  * -# 3 -> [-1024, 1023.f] x [-256, 255.f]
281  */
282  uint8_t mvrange; ///< Extended MV range flag
283  uint8_t pquantizer; ///< Uniform (over sequence) quantizer in use
284  VLC *cbpcy_vlc; ///< CBPCY VLC table
285  int tt_index; ///< Index for Transform Type tables (to decode TTMB)
286  uint8_t* mv_type_mb_plane; ///< bitplane for mv_type == (4MV)
287  uint8_t* direct_mb_plane; ///< bitplane for "direct" MBs
288  uint8_t* forward_mb_plane; ///< bitplane for "forward" MBs
289  int mv_type_is_raw; ///< mv type mb plane is not coded
290  int dmb_is_raw; ///< direct mb plane is raw
291  int fmb_is_raw; ///< forward mb plane is raw
292  int skip_is_raw; ///< skip mb plane is not coded
293  uint8_t last_luty[2][256], last_lutuv[2][256]; ///< lookup tables used for intensity compensation
294  uint8_t aux_luty[2][256], aux_lutuv[2][256]; ///< lookup tables used for intensity compensation
295  uint8_t next_luty[2][256], next_lutuv[2][256]; ///< lookup tables used for intensity compensation
296  uint8_t (*curr_luty)[256] ,(*curr_lutuv)[256];
298  int rnd; ///< rounding control
299 
300  /** Frame decoding info for S/M profiles only */
301  //@{
302  uint8_t rangeredfrm; ///< out_sample = CLIP((in_sample-128)*2+128)
304  //@}
305 
306  /** Frame decoding info for Advanced profile */
307  //@{
312  uint16_t topleftx;
313  uint16_t toplefty;
314  uint16_t bottomrightx;
315  uint16_t bottomrighty;
321  uint8_t* acpred_plane; ///< AC prediction flags bitplane
323  uint8_t* over_flags_plane; ///< Overflags bitplane
326  uint16_t *hrd_rate, *hrd_buffer;
332  //@}
333 
334  /** Frame decoding info for interlaced picture */
335  uint8_t dmvrange; ///< Extended differential MV range flag
337  int intcomp;
338  uint8_t lumscale2; ///< for interlaced field P picture
349  uint8_t *blk_mv_type_base, *blk_mv_type; ///< 0: frame MV, 1: field MV (interlaced frame)
350  uint8_t *mv_f_base, *mv_f[2]; ///< 0: MV obtained from same field, 1: opposite field
352  int field_mode; ///< 1 for interlaced field pictures
353  int fptype;
355  int refdist; ///< distance of the current picture from reference
356  int numref; ///< number of past field pictures used as reference
357  // 0 corresponds to 1 and 1 corresponds to 2 references
358  int reffield; ///< if numref = 0 (1 reference) then reffield decides which
359  // field to use among the two fields from previous frame
360  int intcompfield; ///< which of the two fields to be intensity compensated
361  // 0: both fields, 1: bottom field, 2: top field
362  int cur_field_type; ///< 0: top, 1: bottom
363  int ref_field_type[2]; ///< forward and backward reference field type (top or bottom)
365  int qs_last; ///< if qpel has been used in the previous (tr.) picture
366  int bmvtype;
367  int frfd, brfd; ///< reference frame distance (forward or backward)
370 
371  /** Frame decoding info for sprite modes */
372  //@{
377  uint8_t* sr_rows[2][2]; ///< Sprite resizer line cache
378  //@}
379 
381  int bi_type;
382  int x8_type;
383 
384  int16_t (*block)[6][64];
386  uint32_t *cbp_base, *cbp;
388  int16_t (*luma_mv_base)[2], (*luma_mv)[2];
389  uint8_t bfraction_lut_index; ///< Index for BFRACTION value (see Table 40, reproduced into ff_vc1_bfraction_lut[])
390  uint8_t broken_link; ///< Broken link flag (BROKEN_LINK syntax element)
391  uint8_t closed_entry; ///< Closed entry point flag (CLOSED_ENTRY syntax element)
392 
393  int end_mb_x; ///< Horizontal macroblock limit (used only by mss2)
394 
395  int parse_only; ///< Context is used within parser
396  int resync_marker; ///< could this stream contain resync markers
397 } VC1Context;
398 
399 /**
400  * Decode Simple/Main Profiles sequence header
401  * @see Figure 7-8, p16-17
402  * @param avctx Codec context
403  * @param gb GetBit context initialized from Codec context extra_data
404  * @return Status
405  */
407 
409 
413 
418 
419 void ff_vc1_loop_filter_iblk(VC1Context *v, int pq);
423 
424 void ff_vc1_mc_1mv(VC1Context *v, int dir);
425 void ff_vc1_mc_4mv_luma(VC1Context *v, int n, int dir, int avg);
426 void ff_vc1_mc_4mv_chroma(VC1Context *v, int dir);
427 void ff_vc1_mc_4mv_chroma4(VC1Context *v, int dir, int dir2, int avg);
428 
430 
431 #endif /* AVCODEC_VC1_H */
int color_prim
8bits, chroma coordinates of the color primaries
Definition: vc1.h:206
in the bitstream is reported as 00b
Definition: vc1.h:149
int topleft_blk_idx
Definition: vc1.h:385
VC-1 and WMV3 decoder.
float v
uint8_t bfraction_lut_index
Index for BFRACTION value (see Table 40, reproduced into ff_vc1_bfraction_lut[])
Definition: vc1.h:389
int p_frame_skipped
Definition: vc1.h:380
The VC1 Context.
Definition: vc1.h:173
This structure describes decoded (raw) audio or video data.
Definition: frame.h:171
uint8_t lumscale2
for interlaced field P picture
Definition: vc1.h:338
int k_x
Number of bits for MVs (depends on MV range)
Definition: vc1.h:235
int reffield
if numref = 0 (1 reference) then reffield decides which
Definition: vc1.h:358
uint8_t * mv_f_base
Definition: vc1.h:350
Definition: vc1.h:159
int mv_type_is_raw
mv type mb plane is not coded
Definition: vc1.h:289
Explicitly specified at frame level.
Definition: vc1.h:39
uint8_t dmvrange
Frame decoding info for interlaced picture.
Definition: vc1.h:335
int tt_index
Index for Transform Type tables (to decode TTMB)
Definition: vc1.h:285
int extended_mv
Ext MV in P/B (not in Simple)
Definition: vc1.h:223
CodingSet
Definition: vc1.h:123
int broadcast
TFF/RFF present.
Definition: vc1.h:200
int next_use_ic
Definition: vc1.h:297
int transfer_char
8bits, Opto-electronic transfer characteristics
Definition: vc1.h:207
uint8_t rangeredfrm
Frame decoding info for S/M profiles only.
Definition: vc1.h:302
uint16_t bottomrighty
Definition: vc1.h:315
int frfd
Definition: vc1.h:367
uint8_t zz_8x8[4][64]
Zigzag table for TT_8x8, permuted for IDCT.
Definition: vc1.h:239
mpegvideo header.
int top_blk_idx
Definition: vc1.h:385
IntraX8Context x8
Definition: vc1.h:175
int intcompfield
which of the two fields to be intensity compensated
Definition: vc1.h:360
VLC * imv_vlc
Definition: vc1.h:341
uint8_t dqprofile
Definition: vc1.h:246
uint8_t * mb_type_base
Definition: vc1.h:264
uint8_t * mv_f[2]
0: MV obtained from same field, 1: opposite field
Definition: vc1.h:350
int sprite_height
Definition: vc1.h:376
MVModes
MV modes for P frames.
Definition: vc1.h:78
int last_use_ic
Definition: vc1.h:297
int fastuvmc
Rounding of qpel vector to hpel ? (not in Simple)
Definition: vc1.h:222
int end_mb_x
Horizontal macroblock limit (used only by mss2)
Definition: vc1.h:393
int frmrtq_postproc
3bits,
Definition: vc1.h:219
uint8_t rff
Definition: vc1.h:311
uint8_t numpanscanwin
Definition: vc1.h:309
int hrd_param_flag
Presence of Hypothetical Reference Decoder parameters.
Definition: vc1.h:209
uint8_t lumshift2
Definition: vc1.h:339
int bits
Definition: vc1.h:179
int range_x
Definition: vc1.h:237
uint8_t dqsbedge
Definition: vc1.h:247
int refdist
distance of the current picture from reference
Definition: vc1.h:355
uint8_t * acpred_plane
AC prediction flags bitplane.
Definition: vc1.h:321
int res_transtab
reserved, always 0
Definition: vc1.h:188
int bi_type
Definition: vc1.h:381
int matrix_coef
8bits, Color primaries->YCbCr transform matrix
Definition: vc1.h:208
uint8_t
int first_pic_header_flag
Definition: vc1.h:368
uint16_t * hrd_rate
Definition: vc1.h:326
TransformTypes
Definition: vc1.h:111
int panscanflag
NUMPANSCANWIN, TOPLEFT{X,Y}, BOTRIGHT{X,Y} present.
Definition: vc1.h:203
int left_blk_idx
Definition: vc1.h:385
int interlace
Progressive/interlaced (RPTFTM syntax element)
Definition: vc1.h:201
int y_ac_table_index
Luma index from AC2FRM element.
Definition: vc1.h:255
int second_field
Definition: vc1.h:354
int n_allocated_blks
Definition: vc1.h:385
int c_ac_table_index
AC coding set indexes.
Definition: vc1.h:254
int ttfrm
Transform type info present at frame level.
Definition: vc1.h:257
int codingset2
index of current table set from 11.8 to use for chroma block decoding
Definition: vc1.h:261
uint8_t aux_luty[2][256]
Definition: vc1.h:294
DQSingleEdge
Definition: vc1.h:58
int16_t bfraction
Relative position % anchors=> how to scale MVs.
Definition: vc1.h:272
uint16_t toplefty
Definition: vc1.h:313
int profile
Sequence header data for all Profiles TODO: choose between ints, uint8_ts and monobit flags...
Definition: vc1.h:218
int refdist_flag
REFDIST syntax element present in II, IP, PI or PP field picture headers.
Definition: vc1.h:204
uint8_t * forward_mb_plane
bitplane for "forward" MBs
Definition: vc1.h:288
uint8_t last_luty[2][256]
Definition: vc1.h:293
FrameCodingMode
FCM Frame Coding Mode.
Definition: vc1.h:148
int fieldtx_is_raw
Definition: vc1.h:347
Non-uniform quant used for all frames.
Definition: vc1.h:40
int ff_vc1_decode_entry_point(AVCodecContext *avctx, VC1Context *v, GetBitContext *gb)
Definition: vc1.c:510
uint8_t * over_flags_plane
Overflags bitplane.
Definition: vc1.h:323
uint8_t dqbilevel
Definition: vc1.h:248
uint8_t fourmvbp
Definition: vc1.h:345
int ff_vc1_decode_end(AVCodecContext *avctx)
Close a VC1/WMV3 decoder.
Definition: vc1dec.c:579
int range_y
MV range.
Definition: vc1.h:237
uint8_t last_lutuv[2][256]
lookup tables used for intensity compensation
Definition: vc1.h:293
int psf
Progressive Segmented Frame.
Definition: vc1.h:211
uint8_t ttmbf
Transform type flag.
Definition: vc1.h:258
Definition: vc1.h:119
int k_y
Number of bits for MVs (depends on MV range)
Definition: vc1.h:236
Implicitly specified at frame level.
Definition: vc1.h:38
uint8_t twomvbp
Definition: vc1.h:344
int dmb_is_raw
direct mb plane is raw
Definition: vc1.h:290
int16_t(* block)[6][64]
Definition: vc1.h:384
int res_y411
reserved, old interlaced mode
Definition: vc1.h:184
int overlap
overlapped transforms in use
Definition: vc1.h:226
in the bitstream is reported as 11b
Definition: vc1.h:151
int res_x8
reserved
Definition: vc1.h:185
void ff_vc1_smooth_overlap_filter_iblk(VC1Context *v)
uint8_t * hrd_fullness
Definition: vc1.h:327
int qs_last
if qpel has been used in the previous (tr.) picture
Definition: vc1.h:365
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:643
uint8_t * mv_f_next_base
Definition: vc1.h:351
VLC * mbmode_vlc
Definition: vc1.h:340
int ff_vc1_init_common(VC1Context *v)
Init VC-1 specific tables and VC1Context members.
Definition: vc1.c:1576
void ff_vc1_decode_blocks(VC1Context *v)
Definition: vc1_block.c:2929
int resync_marker
could this stream contain resync markers
Definition: vc1.h:396
void ff_vc1_mc_4mv_chroma(VC1Context *v, int dir)
Do motion compensation for 4-MV macroblock - both chroma blocks.
Definition: vc1_mc.c:507
Libavcodec external API header.
uint8_t broken_link
Broken link flag (BROKEN_LINK syntax element)
Definition: vc1.h:390
const uint8_t * zz_8x4
Zigzag scan table for TT_8x4 coding mode.
Definition: vc1.h:241
int postprocflag
Per-frame processing suggestion flag present.
Definition: vc1.h:199
int res_rtm_flag
reserved, set to 1
Definition: vc1.h:191
Definition: get_bits.h:63
int a_avail
Definition: vc1.h:263
uint8_t * blk_mv_type
0: frame MV, 1: field MV (interlaced frame)
Definition: vc1.h:349
int cur_field_type
0: top, 1: bottom
Definition: vc1.h:362
VLC * twomvbp_vlc
Definition: vc1.h:342
const uint8_t * zz_4x8
Zigzag scan table for TT_4x8 coding mode.
Definition: vc1.h:242
uint8_t buffer_size_exponent
Definition: vc1.h:320
int x8_type
Definition: vc1.h:382
int * curr_use_ic
Definition: vc1.h:297
Imode
Imode types.
Definition: vc1.h:158
uint8_t * blk_mv_type_base
Definition: vc1.h:349
int tfcntrflag
TFCNTR present.
Definition: vc1.h:202
int field_mode
1 for interlaced field pictures
Definition: vc1.h:352
COTypes
Definition: vc1.h:136
uint8_t mv_mode
Frame decoding info for all profiles.
Definition: vc1.h:233
int fourmvswitch
Definition: vc1.h:336
int mb_off
Definition: vc1.h:364
void ff_vc1_loop_filter_iblk_delayed(VC1Context *v, int pq)
MBModesIntfr
MBMODE for interlaced frame P-picture.
Definition: vc1.h:89
int ff_vc1_parse_frame_header_adv(VC1Context *v, GetBitContext *gb)
Definition: vc1.c:845
uint8_t lumscale
Luma compensation parameters.
Definition: vc1.h:269
uint8_t range_mapuv_flag
Definition: vc1.h:329
int n
Definition: avisynth_c.h:547
uint8_t closed_entry
Closed entry point flag (CLOSED_ENTRY syntax element)
Definition: vc1.h:391
DQProfile
Where quant can be changed.
Definition: vc1.h:47
int intcomp
Definition: vc1.h:337
uint32_t * cbp
Definition: vc1.h:386
int left_blk_sh
Definition: vc1.h:240
int16_t(* luma_mv_base)[2]
Definition: vc1.h:388
uint8_t * fieldtx_plane
Definition: vc1.h:346
int * ttblk_base
Definition: vc1.h:259
VLC * cbpcy_vlc
CBPCY VLC table.
Definition: vc1.h:284
uint8_t * sr_rows[2][2]
Sprite resizer line cache.
Definition: vc1.h:377
uint8_t aux_lutuv[2][256]
lookup tables used for intensity compensation
Definition: vc1.h:294
void ff_vc1_loop_filter_iblk(VC1Context *v, int pq)
int rangered
RANGEREDFRM (range reduction) syntax element present at frame level.
Definition: vc1.h:189
int finterpflag
INTERPFRM present.
Definition: vc1.h:228
int chromaformat
2bits, 2=4:2:0, only defined
Definition: vc1.h:198
int res_sprite
Simple/Main Profile sequence header.
Definition: vc1.h:183
int top_blk_sh
Either 3 or 0, positions of l/t in blk[].
Definition: vc1.h:240
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
int c_avail
Definition: vc1.h:263
int multires
frame-level RESPIC syntax element present
Definition: vc1.h:186
uint32_t * cbp_base
Definition: vc1.h:386
main external API structure.
Definition: avcodec.h:1501
uint8_t * is_intra
Definition: vc1.h:387
uint8_t range_mapy
Definition: vc1.h:330
int extended_dmv
Additional extended dmv range at P/B frame-level.
Definition: vc1.h:205
int sprite_width
Definition: vc1.h:376
int fmb_is_raw
forward mb plane is raw
Definition: vc1.h:291
QuantMode
Sequence quantizer mode.
Definition: vc1.h:37
uint8_t * is_intra_base
Definition: vc1.h:387
int fptype
Definition: vc1.h:353
Definition: vc1.h:115
int buffer_fullness
HRD info.
Definition: vc1.h:275
int reserved
reserved
Definition: vc1.h:192
int aux_use_ic
Definition: vc1.h:297
uint8_t respic
Frame-level flag for resized images.
Definition: vc1.h:274
int skip_is_raw
skip mb plane is not coded
Definition: vc1.h:292
uint16_t bottomrightx
Definition: vc1.h:314
int quantizer_mode
2bits, quantizer mode used for sequence, see QUANT_*
Definition: vc1.h:227
uint8_t next_lutuv[2][256]
lookup tables used for intensity compensation
Definition: vc1.h:295
int ref_field_type[2]
forward and backward reference field type (top or bottom)
Definition: vc1.h:363
uint8_t * direct_mb_plane
bitplane for "direct" MBs
Definition: vc1.h:287
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].
Definition: vc1.h:282
int max_coded_width
Definition: vc1.h:221
uint8_t * mv_type_mb_plane
bitplane for mv_type == (4MV)
Definition: vc1.h:286
int vstransform
variable-size [48]x[48] transform type + info
Definition: vc1.h:225
void ff_vc1_apply_p_loop_filter(VC1Context *v)
int numref
number of past field pictures used as reference
Definition: vc1.h:356
int blocks_off
Definition: vc1.h:364
DQDoubleEdge
Which pair of edges is quantized with ALTPQUANT.
Definition: vc1.h:68
uint8_t range_mapuv
Definition: vc1.h:331
uint8_t tff
Definition: vc1.h:311
MpegEncContext s
Definition: vc1.h:174
in the bitstream is reported as 10b
Definition: vc1.h:150
MpegEncContext.
Definition: mpegvideo.h:88
void ff_vc1_init_transposed_scantables(VC1Context *v)
Definition: vc1dec.c:399
int cur_blk_idx
Definition: vc1.h:385
uint8_t pq
Definition: vc1.h:238
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:351
int max_coded_height
Definition: vc1.h:221
int ff_vc1_decode_sequence_header(AVCodecContext *avctx, VC1Context *v, GetBitContext *gb)
Decode Simple/Main Profiles sequence header.
Definition: vc1.c:277
int pqindex
raw pqindex used in coding set selection
Definition: vc1.h:262
int hrd_num_leaky_buckets
Definition: vc1.h:318
int output_width
Definition: vc1.h:376
enum FrameCodingMode fcm
Frame decoding info for Advanced profile.
Definition: vc1.h:308
Uniform quant used for all frames.
Definition: vc1.h:41
uint8_t dquantfrm
pquant parameters
Definition: vc1.h:245
uint8_t lumshift
Definition: vc1.h:270
uint8_t next_luty[2][256]
Definition: vc1.h:295
BMVTypes
Definition: vc1.h:101
int res_fasttx
reserved, always 1
Definition: vc1.h:187
int pic_header_flag
Definition: vc1.h:369
int * ttblk
Transform type at the block level.
Definition: vc1.h:259
uint8_t bit_rate_exponent
Definition: vc1.h:319
uint8_t postproc
Definition: vc1.h:317
uint8_t condover
Definition: vc1.h:325
uint8_t uvsamp
Definition: vc1.h:316
uint8_t pquantizer
Uniform (over sequence) quantizer in use.
Definition: vc1.h:283
int rnd
rounding control
Definition: vc1.h:298
Definition: vc1.h:118
AVFrame * sprite_output_frame
Definition: vc1.h:375
int acpred_is_raw
Definition: vc1.h:322
uint8_t zzi_8x8[64]
Definition: vc1.h:348
void ff_vc1_interp_mc(VC1Context *v)
Motion compensation for direct or interpolated blocks in B-frames.
Definition: vc1_mc.c:748
uint8_t rptfrm
Definition: vc1.h:311
uint8_t(* curr_luty)[256]
Definition: vc1.h:296
int bmvtype
Definition: vc1.h:366
int bitrtq_postproc
5bits, quantized framerate-based postprocessing strength
Definition: vc1.h:220
int parse_only
Context is used within parser.
Definition: vc1.h:395
H264ChromaContext h264chroma
Definition: vc1.h:176
int overflg_is_raw
Definition: vc1.h:324
uint8_t interpfrm
Definition: vc1.h:303
Definition: vc1.h:112
int ff_vc1_decode_init_alloc_tables(VC1Context *v)
Definition: vc1dec.c:323
int level
Advanced Profile.
Definition: vc1.h:197
uint8_t range_mapy_flag
Definition: vc1.h:328
uint8_t tfcntr
Definition: vc1.h:310
int brfd
reference frame distance (forward or backward)
Definition: vc1.h:367
int dquant
How qscale varies with MBs, 2bits (not in Simple)
Definition: vc1.h:224
uint8_t mv_mode2
Secondary MV coding mode (B frames)
Definition: vc1.h:234
int new_sprite
Frame decoding info for sprite modes.
Definition: vc1.h:373
uint8_t * mv_f_next[2]
Definition: vc1.h:351
int ff_vc1_parse_frame_header(VC1Context *v, GetBitContext *gb)
Definition: vc1.c:628
int two_sprites
Definition: vc1.h:374
int codingset
index of current table set from 11.8 to use for luma block decoding
Definition: vc1.h:260
uint8_t * mb_type[3]
Definition: vc1.h:264
uint16_t * hrd_buffer
Definition: vc1.h:326
VLC * fourmvbp_vlc
Definition: vc1.h:343
uint8_t halfpq
Uniform quant over image and qp+.5.
Definition: vc1.h:273
VC1DSPContext vc1dsp
Definition: vc1.h:177
int output_height
Definition: vc1.h:376
uint16_t topleftx
Definition: vc1.h:312
uint8_t altpq
Current/alternate frame quantizer scale.
Definition: vc1.h:238