2 * VC-1 and WMV3 decoder common code
3 * Copyright (c) 2011 Mashiat Sarker Shakkhar
4 * Copyright (c) 2006-2007 Konstantin Shishkov
5 * Partly based on vc9.c (c) 2005 Anonymous, Alex Beregszaszi, Michael Niedermayer
7 * This file is part of Libav.
9 * Libav is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
14 * Libav is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with Libav; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
26 * VC-1 and WMV3 decoder common code
30 #include "libavutil/attributes.h"
33 #include "mpegvideo.h"
36 #include "msmpeg4data.h"
38 #include "simple_idct.h"
43 /***********************************************************************/
45 * @name VC-1 Bitplane decoding
63 /** @} */ //imode defines
65 /** Decode rows by checking if they are skipped
66 * @param plane Buffer to store decoded bits
67 * @param[in] width Width of this buffer
68 * @param[in] height Height of this buffer
69 * @param[in] stride of this buffer
71 static void decode_rowskip(uint8_t* plane, int width, int height, int stride,
76 for (y = 0; y < height; y++) {
77 if (!get_bits1(gb)) //rowskip
78 memset(plane, 0, width);
80 for (x = 0; x < width; x++)
81 plane[x] = get_bits1(gb);
86 /** Decode columns by checking if they are skipped
87 * @param plane Buffer to store decoded bits
88 * @param[in] width Width of this buffer
89 * @param[in] height Height of this buffer
90 * @param[in] stride of this buffer
91 * @todo FIXME: Optimize
93 static void decode_colskip(uint8_t* plane, int width, int height, int stride,
98 for (x = 0; x < width; x++) {
99 if (!get_bits1(gb)) //colskip
100 for (y = 0; y < height; y++)
103 for (y = 0; y < height; y++)
104 plane[y*stride] = get_bits1(gb);
109 /** Decode a bitplane's bits
110 * @param data bitplane where to store the decode bits
111 * @param[out] raw_flag pointer to the flag indicating that this bitplane is not coded explicitly
112 * @param v VC-1 context for bit reading and logging
114 * @todo FIXME: Optimize
116 static int bitplane_decoding(uint8_t* data, int *raw_flag, VC1Context *v)
118 GetBitContext *gb = &v->s.gb;
120 int imode, x, y, code, offset;
121 uint8_t invert, *planep = data;
122 int width, height, stride;
124 width = v->s.mb_width;
125 height = v->s.mb_height >> v->field_mode;
126 stride = v->s.mb_stride;
127 invert = get_bits1(gb);
128 imode = get_vlc2(gb, ff_vc1_imode_vlc.table, VC1_IMODE_VLC_BITS, 1);
133 //Data is actually read in the MB layer (same for all tests == "raw")
134 *raw_flag = 1; //invert ignored
138 if ((height * width) & 1) {
139 *planep++ = get_bits1(gb);
144 // decode bitplane as one long line
145 for (y = offset; y < height * width; y += 2) {
146 code = get_vlc2(gb, ff_vc1_norm2_vlc.table, VC1_NORM2_VLC_BITS, 1);
147 *planep++ = code & 1;
149 if (offset == width) {
151 planep += stride - width;
153 *planep++ = code >> 1;
155 if (offset == width) {
157 planep += stride - width;
163 if (!(height % 3) && (width % 3)) { // use 2x3 decoding
164 for (y = 0; y < height; y += 3) {
165 for (x = width & 1; x < width; x += 2) {
166 code = get_vlc2(gb, ff_vc1_norm6_vlc.table, VC1_NORM6_VLC_BITS, 2);
168 av_log(v->s.avctx, AV_LOG_DEBUG, "invalid NORM-6 VLC\n");
171 planep[x + 0] = (code >> 0) & 1;
172 planep[x + 1] = (code >> 1) & 1;
173 planep[x + 0 + stride] = (code >> 2) & 1;
174 planep[x + 1 + stride] = (code >> 3) & 1;
175 planep[x + 0 + stride * 2] = (code >> 4) & 1;
176 planep[x + 1 + stride * 2] = (code >> 5) & 1;
178 planep += stride * 3;
181 decode_colskip(data, 1, height, stride, &v->s.gb);
183 planep += (height & 1) * stride;
184 for (y = height & 1; y < height; y += 2) {
185 for (x = width % 3; x < width; x += 3) {
186 code = get_vlc2(gb, ff_vc1_norm6_vlc.table, VC1_NORM6_VLC_BITS, 2);
188 av_log(v->s.avctx, AV_LOG_DEBUG, "invalid NORM-6 VLC\n");
191 planep[x + 0] = (code >> 0) & 1;
192 planep[x + 1] = (code >> 1) & 1;
193 planep[x + 2] = (code >> 2) & 1;
194 planep[x + 0 + stride] = (code >> 3) & 1;
195 planep[x + 1 + stride] = (code >> 4) & 1;
196 planep[x + 2 + stride] = (code >> 5) & 1;
198 planep += stride * 2;
202 decode_colskip(data, x, height, stride, &v->s.gb);
204 decode_rowskip(data + x, width - x, 1, stride, &v->s.gb);
208 decode_rowskip(data, width, height, stride, &v->s.gb);
211 decode_colskip(data, width, height, stride, &v->s.gb);
217 /* Applying diff operator */
218 if (imode == IMODE_DIFF2 || imode == IMODE_DIFF6) {
221 for (x = 1; x < width; x++)
222 planep[x] ^= planep[x-1];
223 for (y = 1; y < height; y++) {
225 planep[0] ^= planep[-stride];
226 for (x = 1; x < width; x++) {
227 if (planep[x-1] != planep[x-stride]) planep[x] ^= invert;
228 else planep[x] ^= planep[x-1];
233 for (x = 0; x < stride * height; x++)
234 planep[x] = !planep[x]; //FIXME stride
236 return (imode << 1) + invert;
239 /** @} */ //Bitplane group
241 /***********************************************************************/
242 /** VOP Dquant decoding
243 * @param v VC-1 Context
245 static int vop_dquant_decoding(VC1Context *v)
247 GetBitContext *gb = &v->s.gb;
251 if (v->dquant == 2) {
252 pqdiff = get_bits(gb, 3);
254 v->altpq = get_bits(gb, 5);
256 v->altpq = v->pq + pqdiff + 1;
258 v->dquantfrm = get_bits1(gb);
260 v->dqprofile = get_bits(gb, 2);
261 switch (v->dqprofile) {
262 case DQPROFILE_SINGLE_EDGE:
263 case DQPROFILE_DOUBLE_EDGES:
264 v->dqsbedge = get_bits(gb, 2);
266 case DQPROFILE_ALL_MBS:
267 v->dqbilevel = get_bits1(gb);
273 if (v->dqbilevel || v->dqprofile != DQPROFILE_ALL_MBS) {
274 pqdiff = get_bits(gb, 3);
276 v->altpq = get_bits(gb, 5);
278 v->altpq = v->pq + pqdiff + 1;
285 static int decode_sequence_header_adv(VC1Context *v, GetBitContext *gb);
288 * Decode Simple/Main Profiles sequence header
289 * @see Figure 7-8, p16-17
290 * @param avctx Codec context
291 * @param gb GetBit context initialized from Codec context extra_data
294 int ff_vc1_decode_sequence_header(AVCodecContext *avctx, VC1Context *v, GetBitContext *gb)
296 av_log(avctx, AV_LOG_DEBUG, "Header: %0X\n", show_bits(gb, 32));
297 v->profile = get_bits(gb, 2);
298 if (v->profile == PROFILE_COMPLEX) {
299 av_log(avctx, AV_LOG_WARNING, "WMV3 Complex Profile is not fully supported\n");
302 if (v->profile == PROFILE_ADVANCED) {
303 v->zz_8x4 = ff_vc1_adv_progressive_8x4_zz;
304 v->zz_4x8 = ff_vc1_adv_progressive_4x8_zz;
305 return decode_sequence_header_adv(v, gb);
307 v->zz_8x4 = ff_wmv2_scantableA;
308 v->zz_4x8 = ff_wmv2_scantableB;
309 v->res_y411 = get_bits1(gb);
310 v->res_sprite = get_bits1(gb);
312 av_log(avctx, AV_LOG_ERROR,
313 "Old interlaced mode is not supported\n");
319 v->frmrtq_postproc = get_bits(gb, 3); //common
320 // (bitrate-32kbps)/64kbps
321 v->bitrtq_postproc = get_bits(gb, 5); //common
322 v->s.loop_filter = get_bits1(gb); //common
323 if (v->s.loop_filter == 1 && v->profile == PROFILE_SIMPLE) {
324 av_log(avctx, AV_LOG_ERROR,
325 "LOOPFILTER shall not be enabled in Simple Profile\n");
327 if (v->s.avctx->skip_loop_filter >= AVDISCARD_ALL)
328 v->s.loop_filter = 0;
330 v->res_x8 = get_bits1(gb); //reserved
331 v->multires = get_bits1(gb);
332 v->res_fasttx = get_bits1(gb);
333 if (!v->res_fasttx) {
334 v->vc1dsp.vc1_inv_trans_8x8 = ff_simple_idct_8;
335 v->vc1dsp.vc1_inv_trans_8x4 = ff_simple_idct84_add;
336 v->vc1dsp.vc1_inv_trans_4x8 = ff_simple_idct48_add;
337 v->vc1dsp.vc1_inv_trans_4x4 = ff_simple_idct44_add;
338 v->vc1dsp.vc1_inv_trans_8x8_dc = ff_simple_idct_add_8;
339 v->vc1dsp.vc1_inv_trans_8x4_dc = ff_simple_idct84_add;
340 v->vc1dsp.vc1_inv_trans_4x8_dc = ff_simple_idct48_add;
341 v->vc1dsp.vc1_inv_trans_4x4_dc = ff_simple_idct44_add;
344 v->fastuvmc = get_bits1(gb); //common
345 if (!v->profile && !v->fastuvmc) {
346 av_log(avctx, AV_LOG_ERROR,
347 "FASTUVMC unavailable in Simple Profile\n");
350 v->extended_mv = get_bits1(gb); //common
351 if (!v->profile && v->extended_mv)
353 av_log(avctx, AV_LOG_ERROR,
354 "Extended MVs unavailable in Simple Profile\n");
357 v->dquant = get_bits(gb, 2); //common
358 v->vstransform = get_bits1(gb); //common
360 v->res_transtab = get_bits1(gb);
363 av_log(avctx, AV_LOG_ERROR,
364 "1 for reserved RES_TRANSTAB is forbidden\n");
368 v->overlap = get_bits1(gb); //common
370 v->s.resync_marker = get_bits1(gb);
371 v->rangered = get_bits1(gb);
372 if (v->rangered && v->profile == PROFILE_SIMPLE) {
373 av_log(avctx, AV_LOG_INFO,
374 "RANGERED should be set to 0 in Simple Profile\n");
377 v->s.max_b_frames = avctx->max_b_frames = get_bits(gb, 3); //common
378 v->quantizer_mode = get_bits(gb, 2); //common
380 v->finterpflag = get_bits1(gb); //common
383 v->s.avctx->width = v->s.avctx->coded_width = get_bits(gb, 11);
384 v->s.avctx->height = v->s.avctx->coded_height = get_bits(gb, 11);
385 skip_bits(gb, 5); //frame rate
386 v->res_x8 = get_bits1(gb);
387 if (get_bits1(gb)) { // something to do with DC VLC selection
388 av_log(avctx, AV_LOG_ERROR, "Unsupported sprite feature\n");
391 skip_bits(gb, 3); //slice code
394 v->res_rtm_flag = get_bits1(gb); //reserved
396 if (!v->res_rtm_flag) {
397 av_log(avctx, AV_LOG_ERROR,
398 "Old WMV3 version detected, some frames may be decoded incorrectly\n");
401 //TODO: figure out what they mean (always 0x402F)
404 av_log(avctx, AV_LOG_DEBUG,
405 "Profile %i:\nfrmrtq_postproc=%i, bitrtq_postproc=%i\n"
406 "LoopFilter=%i, MultiRes=%i, FastUVMC=%i, Extended MV=%i\n"
407 "Rangered=%i, VSTransform=%i, Overlap=%i, SyncMarker=%i\n"
408 "DQuant=%i, Quantizer mode=%i, Max B frames=%i\n",
409 v->profile, v->frmrtq_postproc, v->bitrtq_postproc,
410 v->s.loop_filter, v->multires, v->fastuvmc, v->extended_mv,
411 v->rangered, v->vstransform, v->overlap, v->s.resync_marker,
412 v->dquant, v->quantizer_mode, avctx->max_b_frames);
416 static int decode_sequence_header_adv(VC1Context *v, GetBitContext *gb)
419 v->level = get_bits(gb, 3);
421 av_log(v->s.avctx, AV_LOG_ERROR, "Reserved LEVEL %i\n",v->level);
423 v->chromaformat = get_bits(gb, 2);
424 if (v->chromaformat != 1) {
425 av_log(v->s.avctx, AV_LOG_ERROR,
426 "Only 4:2:0 chroma format supported\n");
431 v->frmrtq_postproc = get_bits(gb, 3); //common
432 // (bitrate-32kbps)/64kbps
433 v->bitrtq_postproc = get_bits(gb, 5); //common
434 v->postprocflag = get_bits1(gb); //common
436 v->s.avctx->coded_width = (get_bits(gb, 12) + 1) << 1;
437 v->s.avctx->coded_height = (get_bits(gb, 12) + 1) << 1;
438 v->s.avctx->width = v->s.avctx->coded_width;
439 v->s.avctx->height = v->s.avctx->coded_height;
440 v->broadcast = get_bits1(gb);
441 v->interlace = get_bits1(gb);
442 v->tfcntrflag = get_bits1(gb);
443 v->finterpflag = get_bits1(gb);
444 skip_bits1(gb); // reserved
446 av_log(v->s.avctx, AV_LOG_DEBUG,
447 "Advanced Profile level %i:\nfrmrtq_postproc=%i, bitrtq_postproc=%i\n"
448 "LoopFilter=%i, ChromaFormat=%i, Pulldown=%i, Interlace: %i\n"
449 "TFCTRflag=%i, FINTERPflag=%i\n",
450 v->level, v->frmrtq_postproc, v->bitrtq_postproc,
451 v->s.loop_filter, v->chromaformat, v->broadcast, v->interlace,
452 v->tfcntrflag, v->finterpflag);
454 v->psf = get_bits1(gb);
455 if (v->psf) { //PsF, 6.1.13
456 av_log(v->s.avctx, AV_LOG_ERROR, "Progressive Segmented Frame mode: not supported (yet)\n");
459 v->s.max_b_frames = v->s.avctx->max_b_frames = 7;
460 if (get_bits1(gb)) { //Display Info - decoding is not affected by it
462 av_log(v->s.avctx, AV_LOG_DEBUG, "Display extended info:\n");
463 w = get_bits(gb, 14) + 1;
464 h = get_bits(gb, 14) + 1;
465 av_log(v->s.avctx, AV_LOG_DEBUG, "Display dimensions: %ix%i\n", w, h);
467 ar = get_bits(gb, 4);
469 v->s.avctx->sample_aspect_ratio = ff_vc1_pixel_aspect[ar];
470 } else if (ar == 15) {
471 w = get_bits(gb, 8) + 1;
472 h = get_bits(gb, 8) + 1;
473 v->s.avctx->sample_aspect_ratio = (AVRational){w, h};
475 av_reduce(&v->s.avctx->sample_aspect_ratio.num,
476 &v->s.avctx->sample_aspect_ratio.den,
477 v->s.avctx->height * w,
478 v->s.avctx->width * h,
481 av_log(v->s.avctx, AV_LOG_DEBUG, "Aspect: %i:%i\n",
482 v->s.avctx->sample_aspect_ratio.num,
483 v->s.avctx->sample_aspect_ratio.den);
485 if (get_bits1(gb)) { //framerate stuff
487 v->s.avctx->time_base.num = 32;
488 v->s.avctx->time_base.den = get_bits(gb, 16) + 1;
491 nr = get_bits(gb, 8);
492 dr = get_bits(gb, 4);
493 if (nr > 0 && nr < 8 && dr > 0 && dr < 3) {
494 v->s.avctx->time_base.num = ff_vc1_fps_dr[dr - 1];
495 v->s.avctx->time_base.den = ff_vc1_fps_nr[nr - 1] * 1000;
498 if (v->broadcast) { // Pulldown may be present
499 v->s.avctx->time_base.den *= 2;
500 v->s.avctx->ticks_per_frame = 2;
505 v->color_prim = get_bits(gb, 8);
506 v->transfer_char = get_bits(gb, 8);
507 v->matrix_coef = get_bits(gb, 8);
511 v->hrd_param_flag = get_bits1(gb);
512 if (v->hrd_param_flag) {
514 v->hrd_num_leaky_buckets = get_bits(gb, 5);
515 skip_bits(gb, 4); //bitrate exponent
516 skip_bits(gb, 4); //buffer size exponent
517 for (i = 0; i < v->hrd_num_leaky_buckets; i++) {
518 skip_bits(gb, 16); //hrd_rate[n]
519 skip_bits(gb, 16); //hrd_buffer[n]
525 int ff_vc1_decode_entry_point(AVCodecContext *avctx, VC1Context *v, GetBitContext *gb)
529 av_log(avctx, AV_LOG_DEBUG, "Entry point: %08X\n", show_bits_long(gb, 32));
530 v->broken_link = get_bits1(gb);
531 v->closed_entry = get_bits1(gb);
532 v->panscanflag = get_bits1(gb);
533 v->refdist_flag = get_bits1(gb);
534 v->s.loop_filter = get_bits1(gb);
535 v->fastuvmc = get_bits1(gb);
536 v->extended_mv = get_bits1(gb);
537 v->dquant = get_bits(gb, 2);
538 v->vstransform = get_bits1(gb);
539 v->overlap = get_bits1(gb);
540 v->quantizer_mode = get_bits(gb, 2);
542 if (v->hrd_param_flag) {
543 for (i = 0; i < v->hrd_num_leaky_buckets; i++) {
544 skip_bits(gb, 8); //hrd_full[n]
549 avctx->width = avctx->coded_width = (get_bits(gb, 12) + 1) << 1;
550 avctx->height = avctx->coded_height = (get_bits(gb, 12) + 1) << 1;
553 v->extended_dmv = get_bits1(gb);
554 if ((v->range_mapy_flag = get_bits1(gb))) {
555 av_log(avctx, AV_LOG_ERROR, "Luma scaling is not supported, expect wrong picture\n");
556 v->range_mapy = get_bits(gb, 3);
558 if ((v->range_mapuv_flag = get_bits1(gb))) {
559 av_log(avctx, AV_LOG_ERROR, "Chroma scaling is not supported, expect wrong picture\n");
560 v->range_mapuv = get_bits(gb, 3);
563 av_log(avctx, AV_LOG_DEBUG, "Entry point info:\n"
564 "BrokenLink=%i, ClosedEntry=%i, PanscanFlag=%i\n"
565 "RefDist=%i, Postproc=%i, FastUVMC=%i, ExtMV=%i\n"
566 "DQuant=%i, VSTransform=%i, Overlap=%i, Qmode=%i\n",
567 v->broken_link, v->closed_entry, v->panscanflag, v->refdist_flag, v->s.loop_filter,
568 v->fastuvmc, v->extended_mv, v->dquant, v->vstransform, v->overlap, v->quantizer_mode);
573 /* fill lookup tables for intensity compensation */
574 #define INIT_LUT(lumscale, lumshift, luty, lutuv) \
577 shift = (255 - lumshift * 2) << 6; \
581 scale = lumscale + 32; \
583 shift = (lumshift - 64) << 6; \
585 shift = lumshift << 6; \
587 for (i = 0; i < 256; i++) { \
588 luty[i] = av_clip_uint8((scale * i + shift + 32) >> 6); \
589 lutuv[i] = av_clip_uint8((scale * (i - 128) + 128*64 + 32) >> 6); \
592 int ff_vc1_parse_frame_header(VC1Context *v, GetBitContext* gb)
594 int pqindex, lowquant, status;
597 v->interpfrm = get_bits1(gb);
598 if (v->s.avctx->codec_id == AV_CODEC_ID_MSS2)
601 v->multires = get_bits(gb, 2) == 1;
603 skip_bits(gb, 2); //framecnt unused
606 v->rangeredfrm = get_bits1(gb);
607 v->s.pict_type = get_bits1(gb);
608 if (v->s.avctx->max_b_frames) {
609 if (!v->s.pict_type) {
611 v->s.pict_type = AV_PICTURE_TYPE_I;
613 v->s.pict_type = AV_PICTURE_TYPE_B;
615 v->s.pict_type = AV_PICTURE_TYPE_P;
617 v->s.pict_type = v->s.pict_type ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_I;
620 if (v->s.pict_type == AV_PICTURE_TYPE_B) {
621 v->bfraction_lut_index = get_vlc2(gb, ff_vc1_bfraction_vlc.table, VC1_BFRACTION_VLC_BITS, 1);
622 v->bfraction = ff_vc1_bfraction_lut[v->bfraction_lut_index];
623 if (v->bfraction == 0) {
624 v->s.pict_type = AV_PICTURE_TYPE_BI;
627 if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI)
628 skip_bits(gb, 7); // skip buffer fullness
634 if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI)
636 if (v->s.pict_type == AV_PICTURE_TYPE_P)
639 /* Quantizer stuff */
640 pqindex = get_bits(gb, 5);
643 if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
644 v->pq = ff_vc1_pquant_table[0][pqindex];
646 v->pq = ff_vc1_pquant_table[1][pqindex];
649 if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
650 v->pquantizer = pqindex < 9;
651 if (v->quantizer_mode == QUANT_NON_UNIFORM)
653 v->pqindex = pqindex;
655 v->halfpq = get_bits1(gb);
658 if (v->quantizer_mode == QUANT_FRAME_EXPLICIT)
659 v->pquantizer = get_bits1(gb);
661 if (v->extended_mv == 1)
662 v->mvrange = get_unary(gb, 0, 3);
663 v->k_x = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13
664 v->k_y = v->mvrange + 8; //k_y can be 8 9 10 11
665 v->range_x = 1 << (v->k_x - 1);
666 v->range_y = 1 << (v->k_y - 1);
667 if (v->multires && v->s.pict_type != AV_PICTURE_TYPE_B)
668 v->respic = get_bits(gb, 2);
670 if (v->res_x8 && (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI)) {
671 v->x8_type = get_bits1(gb);
674 av_dlog(v->s.avctx, "%c Frame: QP=[%i]%i (+%i/2) %i\n",
675 (v->s.pict_type == AV_PICTURE_TYPE_P) ? 'P' : ((v->s.pict_type == AV_PICTURE_TYPE_I) ? 'I' : 'B'),
676 pqindex, v->pq, v->halfpq, v->rangeredfrm);
678 if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_P)
681 switch (v->s.pict_type) {
682 case AV_PICTURE_TYPE_P:
683 if (v->pq < 5) v->tt_index = 0;
684 else if (v->pq < 13) v->tt_index = 1;
685 else v->tt_index = 2;
687 lowquant = (v->pq > 12) ? 0 : 1;
688 v->mv_mode = ff_vc1_mv_pmode_table[lowquant][get_unary(gb, 1, 4)];
689 if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {
691 v->mv_mode2 = ff_vc1_mv_pmode_table2[lowquant][get_unary(gb, 1, 3)];
692 v->lumscale = get_bits(gb, 6);
693 v->lumshift = get_bits(gb, 6);
695 /* fill lookup tables for intensity compensation */
698 shift = (255 - v->lumshift * 2) << 6;
699 if (v->lumshift > 31)
702 scale = v->lumscale + 32;
703 if (v->lumshift > 31)
704 shift = (v->lumshift - 64) << 6;
706 shift = v->lumshift << 6;
708 for (i = 0; i < 256; i++) {
709 v->luty[i] = av_clip_uint8((scale * i + shift + 32) >> 6);
710 v->lutuv[i] = av_clip_uint8((scale * (i - 128) + 128*64 + 32) >> 6);
713 v->qs_last = v->s.quarter_sample;
714 if (v->mv_mode == MV_PMODE_1MV_HPEL || v->mv_mode == MV_PMODE_1MV_HPEL_BILIN)
715 v->s.quarter_sample = 0;
716 else if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {
717 if (v->mv_mode2 == MV_PMODE_1MV_HPEL || v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN)
718 v->s.quarter_sample = 0;
720 v->s.quarter_sample = 1;
722 v->s.quarter_sample = 1;
723 v->s.mspel = !(v->mv_mode == MV_PMODE_1MV_HPEL_BILIN || (v->mv_mode == MV_PMODE_INTENSITY_COMP && v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN));
725 if ((v->mv_mode == MV_PMODE_INTENSITY_COMP &&
726 v->mv_mode2 == MV_PMODE_MIXED_MV) ||
727 v->mv_mode == MV_PMODE_MIXED_MV) {
728 status = bitplane_decoding(v->mv_type_mb_plane, &v->mv_type_is_raw, v);
731 av_log(v->s.avctx, AV_LOG_DEBUG, "MB MV Type plane encoding: "
732 "Imode: %i, Invert: %i\n", status>>1, status&1);
734 v->mv_type_is_raw = 0;
735 memset(v->mv_type_mb_plane, 0, v->s.mb_stride * v->s.mb_height);
737 status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
740 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
741 "Imode: %i, Invert: %i\n", status>>1, status&1);
743 /* Hopefully this is correct for P frames */
744 v->s.mv_table_index = get_bits(gb, 2); //but using ff_vc1_ tables
745 v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];
748 av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
749 vop_dquant_decoding(v);
752 v->ttfrm = 0; //FIXME Is that so ?
753 if (v->vstransform) {
754 v->ttmbf = get_bits1(gb);
756 v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
763 case AV_PICTURE_TYPE_B:
764 if (v->pq < 5) v->tt_index = 0;
765 else if (v->pq < 13) v->tt_index = 1;
766 else v->tt_index = 2;
768 v->mv_mode = get_bits1(gb) ? MV_PMODE_1MV : MV_PMODE_1MV_HPEL_BILIN;
769 v->qs_last = v->s.quarter_sample;
770 v->s.quarter_sample = (v->mv_mode == MV_PMODE_1MV);
771 v->s.mspel = v->s.quarter_sample;
773 status = bitplane_decoding(v->direct_mb_plane, &v->dmb_is_raw, v);
776 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Direct Type plane encoding: "
777 "Imode: %i, Invert: %i\n", status>>1, status&1);
778 status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
781 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
782 "Imode: %i, Invert: %i\n", status>>1, status&1);
784 v->s.mv_table_index = get_bits(gb, 2);
785 v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];
788 av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
789 vop_dquant_decoding(v);
793 if (v->vstransform) {
794 v->ttmbf = get_bits1(gb);
796 v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
807 v->c_ac_table_index = decode012(gb);
808 if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI) {
809 v->y_ac_table_index = decode012(gb);
812 v->s.dc_table_index = get_bits1(gb);
815 if (v->s.pict_type == AV_PICTURE_TYPE_BI) {
816 v->s.pict_type = AV_PICTURE_TYPE_B;
822 int ff_vc1_parse_frame_header_adv(VC1Context *v, GetBitContext* gb)
824 int pqindex, lowquant;
826 int mbmodetab, imvtab, icbptab, twomvbptab, fourmvbptab; /* useful only for debugging */
827 int scale, shift, i; /* for initializing LUT for intensity compensation */
830 v->p_frame_skipped = 0;
831 if (v->second_field) {
832 v->s.pict_type = (v->fptype & 1) ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_I;
834 v->s.pict_type = (v->fptype & 1) ? AV_PICTURE_TYPE_BI : AV_PICTURE_TYPE_B;
835 v->s.current_picture_ptr->f.pict_type = v->s.pict_type;
836 if (!v->pic_header_flag)
837 goto parse_common_info;
844 if (fcm == ILACE_FIELD)
846 if (!v->warn_interlaced++)
847 av_log(v->s.avctx, AV_LOG_ERROR,
848 "Interlaced frames/fields support is incomplete\n");
853 if (!v->first_pic_header_flag && v->field_mode != field_mode)
854 return AVERROR_INVALIDDATA;
855 v->field_mode = field_mode;
859 v->fptype = get_bits(gb, 3);
860 v->s.pict_type = (v->fptype & 2) ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_I;
861 if (v->fptype & 4) // B-picture
862 v->s.pict_type = (v->fptype & 2) ? AV_PICTURE_TYPE_BI : AV_PICTURE_TYPE_B;
864 switch (get_unary(gb, 0, 4)) {
866 v->s.pict_type = AV_PICTURE_TYPE_P;
869 v->s.pict_type = AV_PICTURE_TYPE_B;
872 v->s.pict_type = AV_PICTURE_TYPE_I;
875 v->s.pict_type = AV_PICTURE_TYPE_BI;
878 v->s.pict_type = AV_PICTURE_TYPE_P; // skipped pic
879 v->p_frame_skipped = 1;
886 if (!v->interlace || v->psf) {
887 v->rptfrm = get_bits(gb, 2);
889 v->tff = get_bits1(gb);
890 v->rff = get_bits1(gb);
893 if (v->panscanflag) {
894 avpriv_report_missing_feature(v->s.avctx, "Pan-scan");
897 if (v->p_frame_skipped) {
900 v->rnd = get_bits1(gb);
902 v->uvsamp = get_bits1(gb);
904 if (!v->refdist_flag)
906 else if ((v->s.pict_type != AV_PICTURE_TYPE_B) && (v->s.pict_type != AV_PICTURE_TYPE_BI)) {
907 v->refdist = get_bits(gb, 2);
909 v->refdist += get_unary(gb, 0, 16);
911 if ((v->s.pict_type == AV_PICTURE_TYPE_B) || (v->s.pict_type == AV_PICTURE_TYPE_BI)) {
912 v->bfraction_lut_index = get_vlc2(gb, ff_vc1_bfraction_vlc.table, VC1_BFRACTION_VLC_BITS, 1);
913 v->bfraction = ff_vc1_bfraction_lut[v->bfraction_lut_index];
914 v->frfd = (v->bfraction * v->refdist) >> 8;
915 v->brfd = v->refdist - v->frfd - 1;
919 goto parse_common_info;
921 if (v->fcm == PROGRESSIVE) {
923 v->interpfrm = get_bits1(gb);
924 if (v->s.pict_type == AV_PICTURE_TYPE_B) {
925 v->bfraction_lut_index = get_vlc2(gb, ff_vc1_bfraction_vlc.table, VC1_BFRACTION_VLC_BITS, 1);
926 v->bfraction = ff_vc1_bfraction_lut[v->bfraction_lut_index];
927 if (v->bfraction == 0) {
928 v->s.pict_type = AV_PICTURE_TYPE_BI; /* XXX: should not happen here */
935 v->cur_field_type = !(v->tff ^ v->second_field);
936 pqindex = get_bits(gb, 5);
939 v->pqindex = pqindex;
940 if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
941 v->pq = ff_vc1_pquant_table[0][pqindex];
943 v->pq = ff_vc1_pquant_table[1][pqindex];
946 if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
947 v->pquantizer = pqindex < 9;
948 if (v->quantizer_mode == QUANT_NON_UNIFORM)
950 v->pqindex = pqindex;
952 v->halfpq = get_bits1(gb);
955 if (v->quantizer_mode == QUANT_FRAME_EXPLICIT)
956 v->pquantizer = get_bits1(gb);
958 v->postproc = get_bits(gb, 2);
960 if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_P)
966 switch (v->s.pict_type) {
967 case AV_PICTURE_TYPE_I:
968 case AV_PICTURE_TYPE_BI:
969 if (v->fcm == ILACE_FRAME) { //interlace frame picture
970 status = bitplane_decoding(v->fieldtx_plane, &v->fieldtx_is_raw, v);
973 av_log(v->s.avctx, AV_LOG_DEBUG, "FIELDTX plane encoding: "
974 "Imode: %i, Invert: %i\n", status>>1, status&1);
976 status = bitplane_decoding(v->acpred_plane, &v->acpred_is_raw, v);
979 av_log(v->s.avctx, AV_LOG_DEBUG, "ACPRED plane encoding: "
980 "Imode: %i, Invert: %i\n", status>>1, status&1);
981 v->condover = CONDOVER_NONE;
982 if (v->overlap && v->pq <= 8) {
983 v->condover = decode012(gb);
984 if (v->condover == CONDOVER_SELECT) {
985 status = bitplane_decoding(v->over_flags_plane, &v->overflg_is_raw, v);
988 av_log(v->s.avctx, AV_LOG_DEBUG, "CONDOVER plane encoding: "
989 "Imode: %i, Invert: %i\n", status>>1, status&1);
993 case AV_PICTURE_TYPE_P:
995 v->numref = get_bits1(gb);
997 v->reffield = get_bits1(gb);
998 v->ref_field_type[0] = v->reffield ^ !v->cur_field_type;
1002 v->mvrange = get_unary(gb, 0, 3);
1006 if (v->extended_dmv)
1007 v->dmvrange = get_unary(gb, 0, 3);
1010 if (v->fcm == ILACE_FRAME) { // interlaced frame picture
1011 v->fourmvswitch = get_bits1(gb);
1012 v->intcomp = get_bits1(gb);
1014 v->lumscale = get_bits(gb, 6);
1015 v->lumshift = get_bits(gb, 6);
1016 INIT_LUT(v->lumscale, v->lumshift, v->luty, v->lutuv);
1018 status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
1019 av_log(v->s.avctx, AV_LOG_DEBUG, "SKIPMB plane encoding: "
1020 "Imode: %i, Invert: %i\n", status>>1, status&1);
1021 mbmodetab = get_bits(gb, 2);
1022 if (v->fourmvswitch)
1023 v->mbmode_vlc = &ff_vc1_intfr_4mv_mbmode_vlc[mbmodetab];
1025 v->mbmode_vlc = &ff_vc1_intfr_non4mv_mbmode_vlc[mbmodetab];
1026 imvtab = get_bits(gb, 2);
1027 v->imv_vlc = &ff_vc1_1ref_mvdata_vlc[imvtab];
1028 // interlaced p-picture cbpcy range is [1, 63]
1029 icbptab = get_bits(gb, 3);
1030 v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[icbptab];
1031 twomvbptab = get_bits(gb, 2);
1032 v->twomvbp_vlc = &ff_vc1_2mv_block_pattern_vlc[twomvbptab];
1033 if (v->fourmvswitch) {
1034 fourmvbptab = get_bits(gb, 2);
1035 v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[fourmvbptab];
1039 v->k_x = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13
1040 v->k_y = v->mvrange + 8; //k_y can be 8 9 10 11
1041 v->range_x = 1 << (v->k_x - 1);
1042 v->range_y = 1 << (v->k_y - 1);
1046 else if (v->pq < 13)
1050 if (v->fcm != ILACE_FRAME) {
1052 mvmode = get_unary(gb, 1, 4);
1053 lowquant = (v->pq > 12) ? 0 : 1;
1054 v->mv_mode = ff_vc1_mv_pmode_table[lowquant][mvmode];
1055 if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {
1057 mvmode2 = get_unary(gb, 1, 3);
1058 v->mv_mode2 = ff_vc1_mv_pmode_table2[lowquant][mvmode2];
1060 v->intcompfield = decode210(gb);
1061 v->lumscale = get_bits(gb, 6);
1062 v->lumshift = get_bits(gb, 6);
1063 INIT_LUT(v->lumscale, v->lumshift, v->luty, v->lutuv);
1064 if ((v->field_mode) && !v->intcompfield) {
1065 v->lumscale2 = get_bits(gb, 6);
1066 v->lumshift2 = get_bits(gb, 6);
1067 INIT_LUT(v->lumscale2, v->lumshift2, v->luty2, v->lutuv2);
1071 v->qs_last = v->s.quarter_sample;
1072 if (v->mv_mode == MV_PMODE_1MV_HPEL || v->mv_mode == MV_PMODE_1MV_HPEL_BILIN)
1073 v->s.quarter_sample = 0;
1074 else if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {
1075 if (v->mv_mode2 == MV_PMODE_1MV_HPEL || v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN)
1076 v->s.quarter_sample = 0;
1078 v->s.quarter_sample = 1;
1080 v->s.quarter_sample = 1;
1081 v->s.mspel = !(v->mv_mode == MV_PMODE_1MV_HPEL_BILIN
1082 || (v->mv_mode == MV_PMODE_INTENSITY_COMP
1083 && v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN));
1085 if (v->fcm == PROGRESSIVE) { // progressive
1086 if ((v->mv_mode == MV_PMODE_INTENSITY_COMP &&
1087 v->mv_mode2 == MV_PMODE_MIXED_MV)
1088 || v->mv_mode == MV_PMODE_MIXED_MV) {
1089 status = bitplane_decoding(v->mv_type_mb_plane, &v->mv_type_is_raw, v);
1092 av_log(v->s.avctx, AV_LOG_DEBUG, "MB MV Type plane encoding: "
1093 "Imode: %i, Invert: %i\n", status>>1, status&1);
1095 v->mv_type_is_raw = 0;
1096 memset(v->mv_type_mb_plane, 0, v->s.mb_stride * v->s.mb_height);
1098 status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
1101 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
1102 "Imode: %i, Invert: %i\n", status>>1, status&1);
1104 /* Hopefully this is correct for P frames */
1105 v->s.mv_table_index = get_bits(gb, 2); //but using ff_vc1_ tables
1106 v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];
1107 } else if (v->fcm == ILACE_FRAME) { // frame interlaced
1108 v->qs_last = v->s.quarter_sample;
1109 v->s.quarter_sample = 1;
1111 } else { // field interlaced
1112 mbmodetab = get_bits(gb, 3);
1113 imvtab = get_bits(gb, 2 + v->numref);
1115 v->imv_vlc = &ff_vc1_1ref_mvdata_vlc[imvtab];
1117 v->imv_vlc = &ff_vc1_2ref_mvdata_vlc[imvtab];
1118 icbptab = get_bits(gb, 3);
1119 v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[icbptab];
1120 if ((v->mv_mode == MV_PMODE_INTENSITY_COMP &&
1121 v->mv_mode2 == MV_PMODE_MIXED_MV) || v->mv_mode == MV_PMODE_MIXED_MV) {
1122 fourmvbptab = get_bits(gb, 2);
1123 v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[fourmvbptab];
1124 v->mbmode_vlc = &ff_vc1_if_mmv_mbmode_vlc[mbmodetab];
1126 v->mbmode_vlc = &ff_vc1_if_1mv_mbmode_vlc[mbmodetab];
1130 av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
1131 vop_dquant_decoding(v);
1134 v->ttfrm = 0; //FIXME Is that so ?
1135 if (v->vstransform) {
1136 v->ttmbf = get_bits1(gb);
1138 v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
1145 case AV_PICTURE_TYPE_B:
1146 if (v->fcm == ILACE_FRAME) {
1147 v->bfraction_lut_index = get_vlc2(gb, ff_vc1_bfraction_vlc.table, VC1_BFRACTION_VLC_BITS, 1);
1148 v->bfraction = ff_vc1_bfraction_lut[v->bfraction_lut_index];
1149 if (v->bfraction == 0) {
1152 return -1; // This codepath is still incomplete thus it is disabled
1155 v->mvrange = get_unary(gb, 0, 3);
1158 v->k_x = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13
1159 v->k_y = v->mvrange + 8; //k_y can be 8 9 10 11
1160 v->range_x = 1 << (v->k_x - 1);
1161 v->range_y = 1 << (v->k_y - 1);
1165 else if (v->pq < 13)
1170 if (v->field_mode) {
1172 if (v->extended_dmv)
1173 v->dmvrange = get_unary(gb, 0, 3);
1174 mvmode = get_unary(gb, 1, 3);
1175 lowquant = (v->pq > 12) ? 0 : 1;
1176 v->mv_mode = ff_vc1_mv_pmode_table2[lowquant][mvmode];
1177 v->qs_last = v->s.quarter_sample;
1178 v->s.quarter_sample = (v->mv_mode == MV_PMODE_1MV || v->mv_mode == MV_PMODE_MIXED_MV);
1179 v->s.mspel = !(v->mv_mode == MV_PMODE_1MV_HPEL_BILIN || v->mv_mode == MV_PMODE_1MV_HPEL);
1180 status = bitplane_decoding(v->forward_mb_plane, &v->fmb_is_raw, v);
1183 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Forward Type plane encoding: "
1184 "Imode: %i, Invert: %i\n", status>>1, status&1);
1185 mbmodetab = get_bits(gb, 3);
1186 if (v->mv_mode == MV_PMODE_MIXED_MV)
1187 v->mbmode_vlc = &ff_vc1_if_mmv_mbmode_vlc[mbmodetab];
1189 v->mbmode_vlc = &ff_vc1_if_1mv_mbmode_vlc[mbmodetab];
1190 imvtab = get_bits(gb, 3);
1191 v->imv_vlc = &ff_vc1_2ref_mvdata_vlc[imvtab];
1192 icbptab = get_bits(gb, 3);
1193 v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[icbptab];
1194 if (v->mv_mode == MV_PMODE_MIXED_MV) {
1195 fourmvbptab = get_bits(gb, 2);
1196 v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[fourmvbptab];
1198 v->numref = 1; // interlaced field B pictures are always 2-ref
1199 } else if (v->fcm == ILACE_FRAME) {
1200 if (v->extended_dmv)
1201 v->dmvrange = get_unary(gb, 0, 3);
1202 if (get_bits1(gb)) /* intcomp - present but shall always be 0 */
1203 av_log(v->s.avctx, AV_LOG_WARNING, "Intensity compensation set for B picture\n");
1205 v->mv_mode = MV_PMODE_1MV;
1206 v->fourmvswitch = 0;
1207 v->qs_last = v->s.quarter_sample;
1208 v->s.quarter_sample = 1;
1210 status = bitplane_decoding(v->direct_mb_plane, &v->dmb_is_raw, v);
1213 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Direct Type plane encoding: "
1214 "Imode: %i, Invert: %i\n", status>>1, status&1);
1215 status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
1218 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
1219 "Imode: %i, Invert: %i\n", status>>1, status&1);
1220 mbmodetab = get_bits(gb, 2);
1221 v->mbmode_vlc = &ff_vc1_intfr_non4mv_mbmode_vlc[mbmodetab];
1222 imvtab = get_bits(gb, 2);
1223 v->imv_vlc = &ff_vc1_1ref_mvdata_vlc[imvtab];
1224 // interlaced p/b-picture cbpcy range is [1, 63]
1225 icbptab = get_bits(gb, 3);
1226 v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[icbptab];
1227 twomvbptab = get_bits(gb, 2);
1228 v->twomvbp_vlc = &ff_vc1_2mv_block_pattern_vlc[twomvbptab];
1229 fourmvbptab = get_bits(gb, 2);
1230 v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[fourmvbptab];
1232 v->mv_mode = get_bits1(gb) ? MV_PMODE_1MV : MV_PMODE_1MV_HPEL_BILIN;
1233 v->qs_last = v->s.quarter_sample;
1234 v->s.quarter_sample = (v->mv_mode == MV_PMODE_1MV);
1235 v->s.mspel = v->s.quarter_sample;
1236 status = bitplane_decoding(v->direct_mb_plane, &v->dmb_is_raw, v);
1239 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Direct Type plane encoding: "
1240 "Imode: %i, Invert: %i\n", status>>1, status&1);
1241 status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
1244 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
1245 "Imode: %i, Invert: %i\n", status>>1, status&1);
1246 v->s.mv_table_index = get_bits(gb, 2);
1247 v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];
1251 av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
1252 vop_dquant_decoding(v);
1256 if (v->vstransform) {
1257 v->ttmbf = get_bits1(gb);
1259 v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
1268 if (v->fcm != PROGRESSIVE && !v->s.quarter_sample) {
1274 v->c_ac_table_index = decode012(gb);
1275 if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI) {
1276 v->y_ac_table_index = decode012(gb);
1279 v->s.dc_table_index = get_bits1(gb);
1280 if ((v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI)
1282 av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
1283 vop_dquant_decoding(v);
1287 if (v->s.pict_type == AV_PICTURE_TYPE_BI) {
1288 v->s.pict_type = AV_PICTURE_TYPE_B;
1294 static const uint32_t vc1_ac_tables[AC_MODES][186][2] = {
1296 { 0x0001, 2}, { 0x0005, 3}, { 0x000D, 4}, { 0x0012, 5}, { 0x000E, 6}, { 0x0015, 7},
1297 { 0x0013, 8}, { 0x003F, 8}, { 0x004B, 9}, { 0x011F, 9}, { 0x00B8, 10}, { 0x03E3, 10},
1298 { 0x0172, 11}, { 0x024D, 12}, { 0x03DA, 12}, { 0x02DD, 13}, { 0x1F55, 13}, { 0x05B9, 14},
1299 { 0x3EAE, 14}, { 0x0000, 4}, { 0x0010, 5}, { 0x0008, 7}, { 0x0020, 8}, { 0x0029, 9},
1300 { 0x01F4, 9}, { 0x0233, 10}, { 0x01E0, 11}, { 0x012A, 12}, { 0x03DD, 12}, { 0x050A, 13},
1301 { 0x1F29, 13}, { 0x0A42, 14}, { 0x1272, 15}, { 0x1737, 15}, { 0x0003, 5}, { 0x0011, 7},
1302 { 0x00C4, 8}, { 0x004B, 10}, { 0x00B4, 11}, { 0x07D4, 11}, { 0x0345, 12}, { 0x02D7, 13},
1303 { 0x07BF, 13}, { 0x0938, 14}, { 0x0BBB, 14}, { 0x095E, 15}, { 0x0013, 5}, { 0x0078, 7},
1304 { 0x0069, 9}, { 0x0232, 10}, { 0x0461, 11}, { 0x03EC, 12}, { 0x0520, 13}, { 0x1F2A, 13},
1305 { 0x3E50, 14}, { 0x3E51, 14}, { 0x1486, 15}, { 0x000C, 6}, { 0x0024, 9}, { 0x0094, 11},
1306 { 0x08C0, 12}, { 0x0F09, 14}, { 0x1EF0, 15}, { 0x003D, 6}, { 0x0053, 9}, { 0x01A0, 11},
1307 { 0x02D6, 13}, { 0x0F08, 14}, { 0x0013, 7}, { 0x007C, 9}, { 0x07C1, 11}, { 0x04AC, 14},
1308 { 0x001B, 7}, { 0x00A0, 10}, { 0x0344, 12}, { 0x0F79, 14}, { 0x0079, 7}, { 0x03E1, 10},
1309 { 0x02D4, 13}, { 0x2306, 14}, { 0x0021, 8}, { 0x023C, 10}, { 0x0FAE, 12}, { 0x23DE, 14},
1310 { 0x0035, 8}, { 0x0175, 11}, { 0x07B3, 13}, { 0x00C5, 8}, { 0x0174, 11}, { 0x0785, 13},
1311 { 0x0048, 9}, { 0x01A3, 11}, { 0x049E, 13}, { 0x002C, 9}, { 0x00FA, 10}, { 0x07D6, 11},
1312 { 0x0092, 10}, { 0x05CC, 13}, { 0x1EF1, 15}, { 0x00A3, 10}, { 0x03ED, 12}, { 0x093E, 14},
1313 { 0x01E2, 11}, { 0x1273, 15}, { 0x07C4, 11}, { 0x1487, 15}, { 0x0291, 12}, { 0x0293, 12},
1314 { 0x0F8A, 12}, { 0x0509, 13}, { 0x0508, 13}, { 0x078D, 13}, { 0x07BE, 13}, { 0x078C, 13},
1315 { 0x04AE, 14}, { 0x0BBA, 14}, { 0x2307, 14}, { 0x0B9A, 14}, { 0x1736, 15}, { 0x000E, 4},
1316 { 0x0045, 7}, { 0x01F3, 9}, { 0x047A, 11}, { 0x05DC, 13}, { 0x23DF, 14}, { 0x0019, 5},
1317 { 0x0028, 9}, { 0x0176, 11}, { 0x049D, 13}, { 0x23DD, 14}, { 0x0030, 6}, { 0x00A2, 10},
1318 { 0x02EF, 12}, { 0x05B8, 14}, { 0x003F, 6}, { 0x00A5, 10}, { 0x03DB, 12}, { 0x093F, 14},
1319 { 0x0044, 7}, { 0x07CB, 11}, { 0x095F, 15}, { 0x0063, 7}, { 0x03C3, 12}, { 0x0015, 8},
1320 { 0x08F6, 12}, { 0x0017, 8}, { 0x0498, 13}, { 0x002C, 8}, { 0x07B2, 13}, { 0x002F, 8},
1321 { 0x1F54, 13}, { 0x008D, 8}, { 0x07BD, 13}, { 0x008E, 8}, { 0x1182, 13}, { 0x00FB, 8},
1322 { 0x050B, 13}, { 0x002D, 8}, { 0x07C0, 11}, { 0x0079, 9}, { 0x1F5F, 13}, { 0x007A, 9},
1323 { 0x1F56, 13}, { 0x0231, 10}, { 0x03E4, 10}, { 0x01A1, 11}, { 0x0143, 11}, { 0x01F7, 11},
1324 { 0x016F, 12}, { 0x0292, 12}, { 0x02E7, 12}, { 0x016C, 12}, { 0x016D, 12}, { 0x03DC, 12},
1325 { 0x0F8B, 12}, { 0x0499, 13}, { 0x03D8, 12}, { 0x078E, 13}, { 0x02D5, 13}, { 0x1F5E, 13},
1326 { 0x1F2B, 13}, { 0x078F, 13}, { 0x04AD, 14}, { 0x3EAF, 14}, { 0x23DC, 14}, { 0x004A, 9}
1329 { 0x0000, 3}, { 0x0003, 4}, { 0x000B, 5}, { 0x0014, 6}, { 0x003F, 6}, { 0x005D, 7},
1330 { 0x00A2, 8}, { 0x00AC, 9}, { 0x016E, 9}, { 0x020A, 10}, { 0x02E2, 10}, { 0x0432, 11},
1331 { 0x05C9, 11}, { 0x0827, 12}, { 0x0B54, 12}, { 0x04E6, 13}, { 0x105F, 13}, { 0x172A, 13},
1332 { 0x20B2, 14}, { 0x2D4E, 14}, { 0x39F0, 14}, { 0x4175, 15}, { 0x5A9E, 15}, { 0x0004, 4},
1333 { 0x001E, 5}, { 0x0042, 7}, { 0x00B6, 8}, { 0x0173, 9}, { 0x0395, 10}, { 0x072E, 11},
1334 { 0x0B94, 12}, { 0x16A4, 13}, { 0x20B3, 14}, { 0x2E45, 14}, { 0x0005, 5}, { 0x0040, 7},
1335 { 0x0049, 9}, { 0x028F, 10}, { 0x05CB, 11}, { 0x048A, 13}, { 0x09DD, 14}, { 0x73E2, 15},
1336 { 0x0018, 5}, { 0x0025, 8}, { 0x008A, 10}, { 0x051B, 11}, { 0x0E5F, 12}, { 0x09C9, 14},
1337 { 0x139C, 15}, { 0x0029, 6}, { 0x004F, 9}, { 0x0412, 11}, { 0x048D, 13}, { 0x2E41, 14},
1338 { 0x0038, 6}, { 0x010E, 9}, { 0x05A8, 11}, { 0x105C, 13}, { 0x39F2, 14}, { 0x0058, 7},
1339 { 0x021F, 10}, { 0x0E7E, 12}, { 0x39FF, 14}, { 0x0023, 8}, { 0x02E3, 10}, { 0x04E5, 13},
1340 { 0x2E40, 14}, { 0x00A1, 8}, { 0x05BE, 11}, { 0x09C8, 14}, { 0x0083, 8}, { 0x013A, 11},
1341 { 0x1721, 13}, { 0x0044, 9}, { 0x0276, 12}, { 0x39F6, 14}, { 0x008B, 10}, { 0x04EF, 13},
1342 { 0x5A9B, 15}, { 0x0208, 10}, { 0x1CFE, 13}, { 0x0399, 10}, { 0x1CB4, 13}, { 0x039E, 10},
1343 { 0x39F3, 14}, { 0x05AB, 11}, { 0x73E3, 15}, { 0x0737, 11}, { 0x5A9F, 15}, { 0x082D, 12},
1344 { 0x0E69, 12}, { 0x0E68, 12}, { 0x0433, 11}, { 0x0B7B, 12}, { 0x2DF8, 14}, { 0x2E56, 14},
1345 { 0x2E57, 14}, { 0x39F7, 14}, { 0x51A5, 15}, { 0x0003, 3}, { 0x002A, 6}, { 0x00E4, 8},
1346 { 0x028E, 10}, { 0x0735, 11}, { 0x1058, 13}, { 0x1CFA, 13}, { 0x2DF9, 14}, { 0x4174, 15},
1347 { 0x0009, 4}, { 0x0054, 8}, { 0x0398, 10}, { 0x048B, 13}, { 0x139D, 15}, { 0x000D, 4},
1348 { 0x00AD, 9}, { 0x0826, 12}, { 0x2D4C, 14}, { 0x0011, 5}, { 0x016B, 9}, { 0x0B7F, 12},
1349 { 0x51A4, 15}, { 0x0019, 5}, { 0x021B, 10}, { 0x16FD, 13}, { 0x001D, 5}, { 0x0394, 10},
1350 { 0x28D3, 14}, { 0x002B, 6}, { 0x05BC, 11}, { 0x5A9A, 15}, { 0x002F, 6}, { 0x0247, 12},
1351 { 0x0010, 7}, { 0x0A35, 12}, { 0x003E, 6}, { 0x0B7A, 12}, { 0x0059, 7}, { 0x105E, 13},
1352 { 0x0026, 8}, { 0x09CF, 14}, { 0x0055, 8}, { 0x1CB5, 13}, { 0x0057, 8}, { 0x0E5B, 12},
1353 { 0x00A0, 8}, { 0x1468, 13}, { 0x0170, 9}, { 0x0090, 10}, { 0x01CE, 9}, { 0x021A, 10},
1354 { 0x0218, 10}, { 0x0168, 9}, { 0x021E, 10}, { 0x0244, 12}, { 0x0736, 11}, { 0x0138, 11},
1355 { 0x0519, 11}, { 0x0E5E, 12}, { 0x072C, 11}, { 0x0B55, 12}, { 0x09DC, 14}, { 0x20BB, 14},
1356 { 0x048C, 13}, { 0x1723, 13}, { 0x2E44, 14}, { 0x16A5, 13}, { 0x0518, 11}, { 0x39FE, 14},
1360 { 0x0001, 2}, { 0x0006, 3}, { 0x000F, 4}, { 0x0016, 5}, { 0x0020, 6}, { 0x0018, 7},
1361 { 0x0008, 8}, { 0x009A, 8}, { 0x0056, 9}, { 0x013E, 9}, { 0x00F0, 10}, { 0x03A5, 10},
1362 { 0x0077, 11}, { 0x01EF, 11}, { 0x009A, 12}, { 0x005D, 13}, { 0x0001, 4}, { 0x0011, 5},
1363 { 0x0002, 7}, { 0x000B, 8}, { 0x0012, 9}, { 0x01D6, 9}, { 0x027E, 10}, { 0x0191, 11},
1364 { 0x00EA, 12}, { 0x03DC, 12}, { 0x013B, 13}, { 0x0004, 5}, { 0x0014, 7}, { 0x009E, 8},
1365 { 0x0009, 10}, { 0x01AC, 11}, { 0x01E2, 11}, { 0x03CA, 12}, { 0x005F, 13}, { 0x0017, 5},
1366 { 0x004E, 7}, { 0x005E, 9}, { 0x00F3, 10}, { 0x01AD, 11}, { 0x00EC, 12}, { 0x05F0, 13},
1367 { 0x000E, 6}, { 0x00E1, 8}, { 0x03A4, 10}, { 0x009C, 12}, { 0x013D, 13}, { 0x003B, 6},
1368 { 0x001C, 9}, { 0x0014, 11}, { 0x09BE, 12}, { 0x0006, 7}, { 0x007A, 9}, { 0x0190, 11},
1369 { 0x0137, 13}, { 0x001B, 7}, { 0x0008, 10}, { 0x075C, 11}, { 0x0071, 7}, { 0x00D7, 10},
1370 { 0x09BF, 12}, { 0x0007, 8}, { 0x00AF, 10}, { 0x04CC, 11}, { 0x0034, 8}, { 0x0265, 10},
1371 { 0x009F, 12}, { 0x00E0, 8}, { 0x0016, 11}, { 0x0327, 12}, { 0x0015, 9}, { 0x017D, 11},
1372 { 0x0EBB, 12}, { 0x0014, 9}, { 0x00F6, 10}, { 0x01E4, 11}, { 0x00CB, 10}, { 0x099D, 12},
1373 { 0x00CA, 10}, { 0x02FC, 12}, { 0x017F, 11}, { 0x04CD, 11}, { 0x02FD, 12}, { 0x04FE, 11},
1374 { 0x013A, 13}, { 0x000A, 4}, { 0x0042, 7}, { 0x01D3, 9}, { 0x04DD, 11}, { 0x0012, 5},
1375 { 0x00E8, 8}, { 0x004C, 11}, { 0x0136, 13}, { 0x0039, 6}, { 0x0264, 10}, { 0x0EBA, 12},
1376 { 0x0000, 7}, { 0x00AE, 10}, { 0x099C, 12}, { 0x001F, 7}, { 0x04DE, 11}, { 0x0043, 7},
1377 { 0x04DC, 11}, { 0x0003, 8}, { 0x03CB, 12}, { 0x0006, 8}, { 0x099E, 12}, { 0x002A, 8},
1378 { 0x05F1, 13}, { 0x000F, 8}, { 0x09FE, 12}, { 0x0033, 8}, { 0x09FF, 12}, { 0x0098, 8},
1379 { 0x099F, 12}, { 0x00EA, 8}, { 0x013C, 13}, { 0x002E, 8}, { 0x0192, 11}, { 0x0136, 9},
1380 { 0x006A, 9}, { 0x0015, 11}, { 0x03AF, 10}, { 0x01E3, 11}, { 0x0074, 11}, { 0x00EB, 12},
1381 { 0x02F9, 12}, { 0x005C, 13}, { 0x00ED, 12}, { 0x03DD, 12}, { 0x0326, 12}, { 0x005E, 13},
1385 { 0x0004, 3}, { 0x0014, 5}, { 0x0017, 7}, { 0x007F, 8}, { 0x0154, 9}, { 0x01F2, 10},
1386 { 0x00BF, 11}, { 0x0065, 12}, { 0x0AAA, 12}, { 0x0630, 13}, { 0x1597, 13}, { 0x03B7, 14},
1387 { 0x2B22, 14}, { 0x0BE6, 15}, { 0x000B, 4}, { 0x0037, 7}, { 0x0062, 9}, { 0x0007, 11},
1388 { 0x0166, 12}, { 0x00CE, 13}, { 0x1590, 13}, { 0x05F6, 14}, { 0x0BE7, 15}, { 0x0007, 5},
1389 { 0x006D, 8}, { 0x0003, 11}, { 0x031F, 12}, { 0x05F2, 14}, { 0x0002, 6}, { 0x0061, 9},
1390 { 0x0055, 12}, { 0x01DF, 14}, { 0x001A, 6}, { 0x001E, 10}, { 0x0AC9, 12}, { 0x2B23, 14},
1391 { 0x001E, 6}, { 0x001F, 10}, { 0x0AC3, 12}, { 0x2B2B, 14}, { 0x0006, 7}, { 0x0004, 11},
1392 { 0x02F8, 13}, { 0x0019, 7}, { 0x0006, 11}, { 0x063D, 13}, { 0x0057, 7}, { 0x0182, 11},
1393 { 0x2AA2, 14}, { 0x0004, 8}, { 0x0180, 11}, { 0x059C, 14}, { 0x007D, 8}, { 0x0164, 12},
1394 { 0x076D, 15}, { 0x0002, 9}, { 0x018D, 11}, { 0x1581, 13}, { 0x00AD, 8}, { 0x0060, 12},
1395 { 0x0C67, 14}, { 0x001C, 9}, { 0x00EE, 13}, { 0x0003, 9}, { 0x02CF, 13}, { 0x00D9, 9},
1396 { 0x1580, 13}, { 0x0002, 11}, { 0x0183, 11}, { 0x0057, 12}, { 0x0061, 12}, { 0x0031, 11},
1397 { 0x0066, 12}, { 0x0631, 13}, { 0x0632, 13}, { 0x00AC, 13}, { 0x031D, 12}, { 0x0076, 12},
1398 { 0x003A, 11}, { 0x0165, 12}, { 0x0C66, 14}, { 0x0003, 2}, { 0x0054, 7}, { 0x02AB, 10},
1399 { 0x0016, 13}, { 0x05F7, 14}, { 0x0005, 4}, { 0x00F8, 9}, { 0x0AA9, 12}, { 0x005F, 15},
1400 { 0x0004, 4}, { 0x001C, 10}, { 0x1550, 13}, { 0x0004, 5}, { 0x0077, 11}, { 0x076C, 15},
1401 { 0x000E, 5}, { 0x000A, 12}, { 0x000C, 5}, { 0x0562, 11}, { 0x0004, 6}, { 0x031C, 12},
1402 { 0x0006, 6}, { 0x00C8, 13}, { 0x000D, 6}, { 0x01DA, 13}, { 0x0007, 6}, { 0x00C9, 13},
1403 { 0x0001, 7}, { 0x002E, 14}, { 0x0014, 7}, { 0x1596, 13}, { 0x000A, 7}, { 0x0AC2, 12},
1404 { 0x0016, 7}, { 0x015B, 14}, { 0x0015, 7}, { 0x015A, 14}, { 0x000F, 8}, { 0x005E, 15},
1405 { 0x007E, 8}, { 0x00AB, 8}, { 0x002D, 9}, { 0x00D8, 9}, { 0x000B, 9}, { 0x0014, 10},
1406 { 0x02B3, 10}, { 0x01F3, 10}, { 0x003A, 10}, { 0x0000, 10}, { 0x0058, 10}, { 0x002E, 9},
1407 { 0x005E, 10}, { 0x0563, 11}, { 0x00EC, 12}, { 0x0054, 12}, { 0x0AC1, 12}, { 0x1556, 13},
1408 { 0x02FA, 13}, { 0x0181, 11}, { 0x1557, 13}, { 0x059D, 14}, { 0x2AA3, 14}, { 0x2B2A, 14},
1409 { 0x01DE, 14}, { 0x063C, 13}, { 0x00CF, 13}, { 0x1594, 13}, { 0x000D, 9}
1412 { 0x0002, 2}, { 0x0006, 3}, { 0x000F, 4}, { 0x000D, 5}, { 0x000C, 5}, { 0x0015, 6},
1413 { 0x0013, 6}, { 0x0012, 6}, { 0x0017, 7}, { 0x001F, 8}, { 0x001E, 8}, { 0x001D, 8},
1414 { 0x0025, 9}, { 0x0024, 9}, { 0x0023, 9}, { 0x0021, 9}, { 0x0021, 10}, { 0x0020, 10},
1415 { 0x000F, 10}, { 0x000E, 10}, { 0x0007, 11}, { 0x0006, 11}, { 0x0020, 11}, { 0x0021, 11},
1416 { 0x0050, 12}, { 0x0051, 12}, { 0x0052, 12}, { 0x000E, 4}, { 0x0014, 6}, { 0x0016, 7},
1417 { 0x001C, 8}, { 0x0020, 9}, { 0x001F, 9}, { 0x000D, 10}, { 0x0022, 11}, { 0x0053, 12},
1418 { 0x0055, 12}, { 0x000B, 5}, { 0x0015, 7}, { 0x001E, 9}, { 0x000C, 10}, { 0x0056, 12},
1419 { 0x0011, 6}, { 0x001B, 8}, { 0x001D, 9}, { 0x000B, 10}, { 0x0010, 6}, { 0x0022, 9},
1420 { 0x000A, 10}, { 0x000D, 6}, { 0x001C, 9}, { 0x0008, 10}, { 0x0012, 7}, { 0x001B, 9},
1421 { 0x0054, 12}, { 0x0014, 7}, { 0x001A, 9}, { 0x0057, 12}, { 0x0019, 8}, { 0x0009, 10},
1422 { 0x0018, 8}, { 0x0023, 11}, { 0x0017, 8}, { 0x0019, 9}, { 0x0018, 9}, { 0x0007, 10},
1423 { 0x0058, 12}, { 0x0007, 4}, { 0x000C, 6}, { 0x0016, 8}, { 0x0017, 9}, { 0x0006, 10},
1424 { 0x0005, 11}, { 0x0004, 11}, { 0x0059, 12}, { 0x000F, 6}, { 0x0016, 9}, { 0x0005, 10},
1425 { 0x000E, 6}, { 0x0004, 10}, { 0x0011, 7}, { 0x0024, 11}, { 0x0010, 7}, { 0x0025, 11},
1426 { 0x0013, 7}, { 0x005A, 12}, { 0x0015, 8}, { 0x005B, 12}, { 0x0014, 8}, { 0x0013, 8},
1427 { 0x001A, 8}, { 0x0015, 9}, { 0x0014, 9}, { 0x0013, 9}, { 0x0012, 9}, { 0x0011, 9},
1428 { 0x0026, 11}, { 0x0027, 11}, { 0x005C, 12}, { 0x005D, 12}, { 0x005E, 12}, { 0x005F, 12},
1432 { 0x0002, 2}, { 0x000F, 4}, { 0x0015, 6}, { 0x0017, 7}, { 0x001F, 8}, { 0x0025, 9},
1433 { 0x0024, 9}, { 0x0021, 10}, { 0x0020, 10}, { 0x0007, 11}, { 0x0006, 11}, { 0x0020, 11},
1434 { 0x0006, 3}, { 0x0014, 6}, { 0x001E, 8}, { 0x000F, 10}, { 0x0021, 11}, { 0x0050, 12},
1435 { 0x000E, 4}, { 0x001D, 8}, { 0x000E, 10}, { 0x0051, 12}, { 0x000D, 5}, { 0x0023, 9},
1436 { 0x000D, 10}, { 0x000C, 5}, { 0x0022, 9}, { 0x0052, 12}, { 0x000B, 5}, { 0x000C, 10},
1437 { 0x0053, 12}, { 0x0013, 6}, { 0x000B, 10}, { 0x0054, 12}, { 0x0012, 6}, { 0x000A, 10},
1438 { 0x0011, 6}, { 0x0009, 10}, { 0x0010, 6}, { 0x0008, 10}, { 0x0016, 7}, { 0x0055, 12},
1439 { 0x0015, 7}, { 0x0014, 7}, { 0x001C, 8}, { 0x001B, 8}, { 0x0021, 9}, { 0x0020, 9},
1440 { 0x001F, 9}, { 0x001E, 9}, { 0x001D, 9}, { 0x001C, 9}, { 0x001B, 9}, { 0x001A, 9},
1441 { 0x0022, 11}, { 0x0023, 11}, { 0x0056, 12}, { 0x0057, 12}, { 0x0007, 4}, { 0x0019, 9},
1442 { 0x0005, 11}, { 0x000F, 6}, { 0x0004, 11}, { 0x000E, 6}, { 0x000D, 6}, { 0x000C, 6},
1443 { 0x0013, 7}, { 0x0012, 7}, { 0x0011, 7}, { 0x0010, 7}, { 0x001A, 8}, { 0x0019, 8},
1444 { 0x0018, 8}, { 0x0017, 8}, { 0x0016, 8}, { 0x0015, 8}, { 0x0014, 8}, { 0x0013, 8},
1445 { 0x0018, 9}, { 0x0017, 9}, { 0x0016, 9}, { 0x0015, 9}, { 0x0014, 9}, { 0x0013, 9},
1446 { 0x0012, 9}, { 0x0011, 9}, { 0x0007, 10}, { 0x0006, 10}, { 0x0005, 10}, { 0x0004, 10},
1447 { 0x0024, 11}, { 0x0025, 11}, { 0x0026, 11}, { 0x0027, 11}, { 0x0058, 12}, { 0x0059, 12},
1448 { 0x005A, 12}, { 0x005B, 12}, { 0x005C, 12}, { 0x005D, 12}, { 0x005E, 12}, { 0x005F, 12},
1452 { 0x0000, 2}, { 0x0003, 3}, { 0x000D, 4}, { 0x0005, 4}, { 0x001C, 5}, { 0x0016, 5},
1453 { 0x003F, 6}, { 0x003A, 6}, { 0x002E, 6}, { 0x0022, 6}, { 0x007B, 7}, { 0x0067, 7},
1454 { 0x005F, 7}, { 0x0047, 7}, { 0x0026, 7}, { 0x00EF, 8}, { 0x00CD, 8}, { 0x00C1, 8},
1455 { 0x00A9, 8}, { 0x004F, 8}, { 0x01F2, 9}, { 0x01DD, 9}, { 0x0199, 9}, { 0x0185, 9},
1456 { 0x015D, 9}, { 0x011B, 9}, { 0x03EF, 10}, { 0x03E1, 10}, { 0x03C8, 10}, { 0x0331, 10},
1457 { 0x0303, 10}, { 0x02F1, 10}, { 0x02A0, 10}, { 0x0233, 10}, { 0x0126, 10}, { 0x07C0, 11},
1458 { 0x076F, 11}, { 0x076C, 11}, { 0x0661, 11}, { 0x0604, 11}, { 0x0572, 11}, { 0x0551, 11},
1459 { 0x046A, 11}, { 0x0274, 11}, { 0x0F27, 12}, { 0x0F24, 12}, { 0x0EDB, 12}, { 0x0C8E, 12},
1460 { 0x0C0B, 12}, { 0x0C0A, 12}, { 0x0AE3, 12}, { 0x08D6, 12}, { 0x0490, 12}, { 0x0495, 12},
1461 { 0x1F19, 13}, { 0x1DB5, 13}, { 0x0009, 4}, { 0x0010, 5}, { 0x0029, 6}, { 0x0062, 7},
1462 { 0x00F3, 8}, { 0x00AD, 8}, { 0x01E5, 9}, { 0x0179, 9}, { 0x009C, 9}, { 0x03B1, 10},
1463 { 0x02AE, 10}, { 0x0127, 10}, { 0x076E, 11}, { 0x0570, 11}, { 0x0275, 11}, { 0x0F25, 12},
1464 { 0x0EC0, 12}, { 0x0AA0, 12}, { 0x08D7, 12}, { 0x1E4C, 13}, { 0x0008, 5}, { 0x0063, 7},
1465 { 0x00AF, 8}, { 0x017B, 9}, { 0x03B3, 10}, { 0x07DD, 11}, { 0x0640, 11}, { 0x0F8D, 12},
1466 { 0x0BC1, 12}, { 0x0491, 12}, { 0x0028, 6}, { 0x00C3, 8}, { 0x0151, 9}, { 0x02A1, 10},
1467 { 0x0573, 11}, { 0x0EC3, 12}, { 0x1F35, 13}, { 0x0065, 7}, { 0x01DA, 9}, { 0x02AF, 10},
1468 { 0x0277, 11}, { 0x08C9, 12}, { 0x1781, 13}, { 0x0025, 7}, { 0x0118, 9}, { 0x0646, 11},
1469 { 0x0AA6, 12}, { 0x1780, 13}, { 0x00C9, 8}, { 0x0321, 10}, { 0x0F9B, 12}, { 0x191E, 13},
1470 { 0x0048, 8}, { 0x07CC, 11}, { 0x0AA1, 12}, { 0x0180, 9}, { 0x0465, 11}, { 0x1905, 13},
1471 { 0x03E2, 10}, { 0x0EC1, 12}, { 0x3C9B, 14}, { 0x02F4, 10}, { 0x08C8, 12}, { 0x07C1, 11},
1472 { 0x0928, 13}, { 0x05E1, 11}, { 0x320D, 14}, { 0x0EC2, 12}, { 0x6418, 15}, { 0x1F34, 13},
1473 { 0x0078, 7}, { 0x0155, 9}, { 0x0552, 11}, { 0x191F, 13}, { 0x00FA, 8}, { 0x07DC, 11},
1474 { 0x1907, 13}, { 0x00AC, 8}, { 0x0249, 11}, { 0x13B1, 14}, { 0x01F6, 9}, { 0x0AE2, 12},
1475 { 0x01DC, 9}, { 0x04ED, 12}, { 0x0184, 9}, { 0x1904, 13}, { 0x0156, 9}, { 0x09D9, 13},
1476 { 0x03E7, 10}, { 0x0929, 13}, { 0x03B2, 10}, { 0x3B68, 14}, { 0x02F5, 10}, { 0x13B0, 14},
1477 { 0x0322, 10}, { 0x3B69, 14}, { 0x0234, 10}, { 0x7935, 15}, { 0x07C7, 11}, { 0xC833, 16},
1478 { 0x0660, 11}, { 0x7934, 15}, { 0x024B, 11}, { 0xC832, 16}, { 0x0AA7, 12}, { 0x1F18, 13},
1482 { 0x0002, 2}, { 0x0000, 3}, { 0x001E, 5}, { 0x0004, 5}, { 0x0012, 6}, { 0x0070, 7},
1483 { 0x001A, 7}, { 0x005F, 8}, { 0x0047, 8}, { 0x01D3, 9}, { 0x00B5, 9}, { 0x0057, 9},
1484 { 0x03B5, 10}, { 0x016D, 10}, { 0x0162, 10}, { 0x07CE, 11}, { 0x0719, 11}, { 0x0691, 11},
1485 { 0x02C6, 11}, { 0x0156, 11}, { 0x0F92, 12}, { 0x0D2E, 12}, { 0x0D20, 12}, { 0x059E, 12},
1486 { 0x0468, 12}, { 0x02A6, 12}, { 0x1DA2, 13}, { 0x1C60, 13}, { 0x1A43, 13}, { 0x0B1D, 13},
1487 { 0x08C0, 13}, { 0x055D, 13}, { 0x0003, 3}, { 0x000A, 5}, { 0x0077, 7}, { 0x00E5, 8},
1488 { 0x01D9, 9}, { 0x03E5, 10}, { 0x0166, 10}, { 0x0694, 11}, { 0x0152, 11}, { 0x059F, 12},
1489 { 0x1F3C, 13}, { 0x1A4B, 13}, { 0x055E, 13}, { 0x000C, 4}, { 0x007D, 7}, { 0x0044, 8},
1490 { 0x03E0, 10}, { 0x0769, 11}, { 0x0E31, 12}, { 0x1F26, 13}, { 0x055C, 13}, { 0x001B, 5},
1491 { 0x00E2, 8}, { 0x03A5, 10}, { 0x02C9, 11}, { 0x1F23, 13}, { 0x3B47, 14}, { 0x0007, 5},
1492 { 0x01D8, 9}, { 0x02D8, 11}, { 0x1F27, 13}, { 0x3494, 14}, { 0x0035, 6}, { 0x03E1, 10},
1493 { 0x059C, 12}, { 0x38C3, 14}, { 0x000C, 6}, { 0x0165, 10}, { 0x1D23, 13}, { 0x1638, 14},
1494 { 0x0068, 7}, { 0x0693, 11}, { 0x3A45, 14}, { 0x0020, 7}, { 0x0F90, 12}, { 0x7CF6, 15},
1495 { 0x00E8, 8}, { 0x058F, 12}, { 0x2CEF, 15}, { 0x0045, 8}, { 0x0B3A, 13}, { 0x01F1, 9},
1496 { 0x3B46, 14}, { 0x01A7, 9}, { 0x1676, 14}, { 0x0056, 9}, { 0x692A, 15}, { 0x038D, 10},
1497 { 0xE309, 16}, { 0x00AA, 10}, { 0x1C611, 17}, { 0x02DF, 11}, { 0xB3B9, 17}, { 0x02C8, 11},
1498 { 0x38C20, 18}, { 0x01B0, 11}, { 0x16390, 18}, { 0x0F9F, 12}, { 0x16771, 18}, { 0x0ED0, 12},
1499 { 0x71843, 19}, { 0x0D2A, 12}, { 0xF9E8C, 20}, { 0x0461, 12}, { 0xF9E8E, 20}, { 0x0B67, 13},
1500 { 0x055F, 13}, { 0x003F, 6}, { 0x006D, 9}, { 0x0E90, 12}, { 0x054E, 13}, { 0x0013, 6},
1501 { 0x0119, 10}, { 0x0B66, 13}, { 0x000B, 6}, { 0x0235, 11}, { 0x7CF5, 15}, { 0x0075, 7},
1502 { 0x0D24, 12}, { 0xF9E9, 16}, { 0x002E, 7}, { 0x1F22, 13}, { 0x0021, 7}, { 0x054F, 13},
1503 { 0x0014, 7}, { 0x3A44, 14}, { 0x00E4, 8}, { 0x7CF7, 15}, { 0x005E, 8}, { 0x7185, 15},
1504 { 0x0037, 8}, { 0x2C73, 15}, { 0x01DB, 9}, { 0x59DD, 16}, { 0x01C7, 9}, { 0x692B, 15},
1505 { 0x01A6, 9}, { 0x58E5, 16}, { 0x00B4, 9}, { 0x1F3D0, 17}, { 0x00B0, 9}, { 0xB1C9, 17},
1506 { 0x03E6, 10}, { 0x16770, 18}, { 0x016E, 10}, { 0x3E7A2, 18}, { 0x011B, 10}, { 0xF9E8D, 20},
1507 { 0x00D9, 10}, { 0xF9E8F, 20}, { 0x00A8, 10}, { 0x2C723, 19}, { 0x0749, 11}, { 0xE3084, 20},
1508 { 0x0696, 11}, { 0x58E45, 20}, { 0x02DE, 11}, { 0xB1C88, 21}, { 0x0231, 11}, { 0x1C610A, 21},
1509 { 0x01B1, 11}, { 0x71842D, 23}, { 0x0D2B, 12}, { 0x38C217, 22}, { 0x0D2F, 12}, { 0x163913, 22},
1510 { 0x05B2, 12}, { 0x163912, 22}, { 0x0469, 12}, { 0x71842C, 23}, { 0x1A42, 13}, { 0x08C1, 13},
1515 static const uint16_t vlc_offs[] = {
1516 0, 520, 552, 616, 1128, 1160, 1224, 1740, 1772, 1836, 1900, 2436,
1517 2986, 3050, 3610, 4154, 4218, 4746, 5326, 5390, 5902, 6554, 7658, 8342,
1518 9304, 9988, 10630, 11234, 12174, 13006, 13560, 14232, 14786, 15432, 16350, 17522,
1519 20372, 21818, 22330, 22394, 23166, 23678, 23742, 24820, 25332, 25396, 26460, 26980,
1520 27048, 27592, 27600, 27608, 27616, 27624, 28224, 28258, 28290, 28802, 28834, 28866,
1521 29378, 29412, 29444, 29960, 29994, 30026, 30538, 30572, 30604, 31120, 31154, 31186,
1522 31714, 31746, 31778, 32306, 32340, 32372
1526 * Init VC-1 specific tables and VC1Context members
1527 * @param v The VC1Context to initialize
1530 av_cold int ff_vc1_init_common(VC1Context *v)
1532 static int done = 0;
1534 static VLC_TYPE vlc_table[32372][2];
1536 v->hrd_rate = v->hrd_buffer = NULL;
1540 INIT_VLC_STATIC(&ff_vc1_bfraction_vlc, VC1_BFRACTION_VLC_BITS, 23,
1541 ff_vc1_bfraction_bits, 1, 1,
1542 ff_vc1_bfraction_codes, 1, 1, 1 << VC1_BFRACTION_VLC_BITS);
1543 INIT_VLC_STATIC(&ff_vc1_norm2_vlc, VC1_NORM2_VLC_BITS, 4,
1544 ff_vc1_norm2_bits, 1, 1,
1545 ff_vc1_norm2_codes, 1, 1, 1 << VC1_NORM2_VLC_BITS);
1546 INIT_VLC_STATIC(&ff_vc1_norm6_vlc, VC1_NORM6_VLC_BITS, 64,
1547 ff_vc1_norm6_bits, 1, 1,
1548 ff_vc1_norm6_codes, 2, 2, 556);
1549 INIT_VLC_STATIC(&ff_vc1_imode_vlc, VC1_IMODE_VLC_BITS, 7,
1550 ff_vc1_imode_bits, 1, 1,
1551 ff_vc1_imode_codes, 1, 1, 1 << VC1_IMODE_VLC_BITS);
1552 for (i = 0; i < 3; i++) {
1553 ff_vc1_ttmb_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 0]];
1554 ff_vc1_ttmb_vlc[i].table_allocated = vlc_offs[i * 3 + 1] - vlc_offs[i * 3 + 0];
1555 init_vlc(&ff_vc1_ttmb_vlc[i], VC1_TTMB_VLC_BITS, 16,
1556 ff_vc1_ttmb_bits[i], 1, 1,
1557 ff_vc1_ttmb_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
1558 ff_vc1_ttblk_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 1]];
1559 ff_vc1_ttblk_vlc[i].table_allocated = vlc_offs[i * 3 + 2] - vlc_offs[i * 3 + 1];
1560 init_vlc(&ff_vc1_ttblk_vlc[i], VC1_TTBLK_VLC_BITS, 8,
1561 ff_vc1_ttblk_bits[i], 1, 1,
1562 ff_vc1_ttblk_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1563 ff_vc1_subblkpat_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 2]];
1564 ff_vc1_subblkpat_vlc[i].table_allocated = vlc_offs[i * 3 + 3] - vlc_offs[i * 3 + 2];
1565 init_vlc(&ff_vc1_subblkpat_vlc[i], VC1_SUBBLKPAT_VLC_BITS, 15,
1566 ff_vc1_subblkpat_bits[i], 1, 1,
1567 ff_vc1_subblkpat_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1569 for (i = 0; i < 4; i++) {
1570 ff_vc1_4mv_block_pattern_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 9]];
1571 ff_vc1_4mv_block_pattern_vlc[i].table_allocated = vlc_offs[i * 3 + 10] - vlc_offs[i * 3 + 9];
1572 init_vlc(&ff_vc1_4mv_block_pattern_vlc[i], VC1_4MV_BLOCK_PATTERN_VLC_BITS, 16,
1573 ff_vc1_4mv_block_pattern_bits[i], 1, 1,
1574 ff_vc1_4mv_block_pattern_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1575 ff_vc1_cbpcy_p_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 10]];
1576 ff_vc1_cbpcy_p_vlc[i].table_allocated = vlc_offs[i * 3 + 11] - vlc_offs[i * 3 + 10];
1577 init_vlc(&ff_vc1_cbpcy_p_vlc[i], VC1_CBPCY_P_VLC_BITS, 64,
1578 ff_vc1_cbpcy_p_bits[i], 1, 1,
1579 ff_vc1_cbpcy_p_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
1580 ff_vc1_mv_diff_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 11]];
1581 ff_vc1_mv_diff_vlc[i].table_allocated = vlc_offs[i * 3 + 12] - vlc_offs[i * 3 + 11];
1582 init_vlc(&ff_vc1_mv_diff_vlc[i], VC1_MV_DIFF_VLC_BITS, 73,
1583 ff_vc1_mv_diff_bits[i], 1, 1,
1584 ff_vc1_mv_diff_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
1586 for (i = 0; i < 8; i++) {
1587 ff_vc1_ac_coeff_table[i].table = &vlc_table[vlc_offs[i * 2 + 21]];
1588 ff_vc1_ac_coeff_table[i].table_allocated = vlc_offs[i * 2 + 22] - vlc_offs[i * 2 + 21];
1589 init_vlc(&ff_vc1_ac_coeff_table[i], AC_VLC_BITS, ff_vc1_ac_sizes[i],
1590 &vc1_ac_tables[i][0][1], 8, 4,
1591 &vc1_ac_tables[i][0][0], 8, 4, INIT_VLC_USE_NEW_STATIC);
1592 /* initialize interlaced MVDATA tables (2-Ref) */
1593 ff_vc1_2ref_mvdata_vlc[i].table = &vlc_table[vlc_offs[i * 2 + 22]];
1594 ff_vc1_2ref_mvdata_vlc[i].table_allocated = vlc_offs[i * 2 + 23] - vlc_offs[i * 2 + 22];
1595 init_vlc(&ff_vc1_2ref_mvdata_vlc[i], VC1_2REF_MVDATA_VLC_BITS, 126,
1596 ff_vc1_2ref_mvdata_bits[i], 1, 1,
1597 ff_vc1_2ref_mvdata_codes[i], 4, 4, INIT_VLC_USE_NEW_STATIC);
1599 for (i = 0; i < 4; i++) {
1600 /* initialize 4MV MBMODE VLC tables for interlaced frame P picture */
1601 ff_vc1_intfr_4mv_mbmode_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 37]];
1602 ff_vc1_intfr_4mv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 38] - vlc_offs[i * 3 + 37];
1603 init_vlc(&ff_vc1_intfr_4mv_mbmode_vlc[i], VC1_INTFR_4MV_MBMODE_VLC_BITS, 15,
1604 ff_vc1_intfr_4mv_mbmode_bits[i], 1, 1,
1605 ff_vc1_intfr_4mv_mbmode_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
1606 /* initialize NON-4MV MBMODE VLC tables for the same */
1607 ff_vc1_intfr_non4mv_mbmode_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 38]];
1608 ff_vc1_intfr_non4mv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 39] - vlc_offs[i * 3 + 38];
1609 init_vlc(&ff_vc1_intfr_non4mv_mbmode_vlc[i], VC1_INTFR_NON4MV_MBMODE_VLC_BITS, 9,
1610 ff_vc1_intfr_non4mv_mbmode_bits[i], 1, 1,
1611 ff_vc1_intfr_non4mv_mbmode_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1612 /* initialize interlaced MVDATA tables (1-Ref) */
1613 ff_vc1_1ref_mvdata_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 39]];
1614 ff_vc1_1ref_mvdata_vlc[i].table_allocated = vlc_offs[i * 3 + 40] - vlc_offs[i * 3 + 39];
1615 init_vlc(&ff_vc1_1ref_mvdata_vlc[i], VC1_1REF_MVDATA_VLC_BITS, 72,
1616 ff_vc1_1ref_mvdata_bits[i], 1, 1,
1617 ff_vc1_1ref_mvdata_codes[i], 4, 4, INIT_VLC_USE_NEW_STATIC);
1619 for (i = 0; i < 4; i++) {
1620 /* Initialize 2MV Block pattern VLC tables */
1621 ff_vc1_2mv_block_pattern_vlc[i].table = &vlc_table[vlc_offs[i + 49]];
1622 ff_vc1_2mv_block_pattern_vlc[i].table_allocated = vlc_offs[i + 50] - vlc_offs[i + 49];
1623 init_vlc(&ff_vc1_2mv_block_pattern_vlc[i], VC1_2MV_BLOCK_PATTERN_VLC_BITS, 4,
1624 ff_vc1_2mv_block_pattern_bits[i], 1, 1,
1625 ff_vc1_2mv_block_pattern_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1627 for (i = 0; i < 8; i++) {
1628 /* Initialize interlaced CBPCY VLC tables (Table 124 - Table 131) */
1629 ff_vc1_icbpcy_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 53]];
1630 ff_vc1_icbpcy_vlc[i].table_allocated = vlc_offs[i * 3 + 54] - vlc_offs[i * 3 + 53];
1631 init_vlc(&ff_vc1_icbpcy_vlc[i], VC1_ICBPCY_VLC_BITS, 63,
1632 ff_vc1_icbpcy_p_bits[i], 1, 1,
1633 ff_vc1_icbpcy_p_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
1634 /* Initialize interlaced field picture MBMODE VLC tables */
1635 ff_vc1_if_mmv_mbmode_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 54]];
1636 ff_vc1_if_mmv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 55] - vlc_offs[i * 3 + 54];
1637 init_vlc(&ff_vc1_if_mmv_mbmode_vlc[i], VC1_IF_MMV_MBMODE_VLC_BITS, 8,
1638 ff_vc1_if_mmv_mbmode_bits[i], 1, 1,
1639 ff_vc1_if_mmv_mbmode_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1640 ff_vc1_if_1mv_mbmode_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 55]];
1641 ff_vc1_if_1mv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 56] - vlc_offs[i * 3 + 55];
1642 init_vlc(&ff_vc1_if_1mv_mbmode_vlc[i], VC1_IF_1MV_MBMODE_VLC_BITS, 6,
1643 ff_vc1_if_1mv_mbmode_bits[i], 1, 1,
1644 ff_vc1_if_1mv_mbmode_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1649 /* Other defaults */
1651 v->mvrange = 0; /* 7.1.1.18, p80 */