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 FFmpeg.
9 * FFmpeg 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 * FFmpeg 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 FFmpeg; 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
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_long(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 int w = get_bits(gb, 11);
384 int h = get_bits(gb, 11);
385 avcodec_set_dimensions(v->s.avctx, w, h);
386 skip_bits(gb, 5); //frame rate
387 v->res_x8 = get_bits1(gb);
388 if (get_bits1(gb)) { // something to do with DC VLC selection
389 av_log(avctx, AV_LOG_ERROR, "Unsupported sprite feature\n");
392 skip_bits(gb, 3); //slice code
395 v->res_rtm_flag = get_bits1(gb); //reserved
397 if (!v->res_rtm_flag) {
398 // av_log(avctx, AV_LOG_ERROR,
399 // "0 for reserved RES_RTM_FLAG is forbidden\n");
400 av_log(avctx, AV_LOG_ERROR,
401 "Old WMV3 version detected, some frames may be decoded incorrectly\n");
404 //TODO: figure out what they mean (always 0x402F)
407 av_log(avctx, AV_LOG_DEBUG,
408 "Profile %i:\nfrmrtq_postproc=%i, bitrtq_postproc=%i\n"
409 "LoopFilter=%i, MultiRes=%i, FastUVMC=%i, Extended MV=%i\n"
410 "Rangered=%i, VSTransform=%i, Overlap=%i, SyncMarker=%i\n"
411 "DQuant=%i, Quantizer mode=%i, Max B frames=%i\n",
412 v->profile, v->frmrtq_postproc, v->bitrtq_postproc,
413 v->s.loop_filter, v->multires, v->fastuvmc, v->extended_mv,
414 v->rangered, v->vstransform, v->overlap, v->s.resync_marker,
415 v->dquant, v->quantizer_mode, avctx->max_b_frames);
419 static int decode_sequence_header_adv(VC1Context *v, GetBitContext *gb)
422 v->level = get_bits(gb, 3);
424 av_log(v->s.avctx, AV_LOG_ERROR, "Reserved LEVEL %i\n",v->level);
426 v->chromaformat = get_bits(gb, 2);
427 if (v->chromaformat != 1) {
428 av_log(v->s.avctx, AV_LOG_ERROR,
429 "Only 4:2:0 chroma format supported\n");
434 v->frmrtq_postproc = get_bits(gb, 3); //common
435 // (bitrate-32kbps)/64kbps
436 v->bitrtq_postproc = get_bits(gb, 5); //common
437 v->postprocflag = get_bits1(gb); //common
439 v->max_coded_width = (get_bits(gb, 12) + 1) << 1;
440 v->max_coded_height = (get_bits(gb, 12) + 1) << 1;
441 v->broadcast = get_bits1(gb);
442 v->interlace = get_bits1(gb);
443 v->tfcntrflag = get_bits1(gb);
444 v->finterpflag = get_bits1(gb);
445 skip_bits1(gb); // reserved
447 av_log(v->s.avctx, AV_LOG_DEBUG,
448 "Advanced Profile level %i:\nfrmrtq_postproc=%i, bitrtq_postproc=%i\n"
449 "LoopFilter=%i, ChromaFormat=%i, Pulldown=%i, Interlace: %i\n"
450 "TFCTRflag=%i, FINTERPflag=%i\n",
451 v->level, v->frmrtq_postproc, v->bitrtq_postproc,
452 v->s.loop_filter, v->chromaformat, v->broadcast, v->interlace,
453 v->tfcntrflag, v->finterpflag);
455 v->psf = get_bits1(gb);
456 if (v->psf) { //PsF, 6.1.13
457 av_log(v->s.avctx, AV_LOG_ERROR, "Progressive Segmented Frame mode: not supported (yet)\n");
460 v->s.max_b_frames = v->s.avctx->max_b_frames = 7;
461 if (get_bits1(gb)) { //Display Info - decoding is not affected by it
463 av_log(v->s.avctx, AV_LOG_DEBUG, "Display extended info:\n");
464 w = get_bits(gb, 14) + 1;
465 h = get_bits(gb, 14) + 1;
466 av_log(v->s.avctx, AV_LOG_DEBUG, "Display dimensions: %ix%i\n", w, h);
468 ar = get_bits(gb, 4);
470 v->s.avctx->sample_aspect_ratio = ff_vc1_pixel_aspect[ar];
471 } else if (ar == 15) {
472 w = get_bits(gb, 8) + 1;
473 h = get_bits(gb, 8) + 1;
474 v->s.avctx->sample_aspect_ratio = (AVRational){w, h};
476 av_reduce(&v->s.avctx->sample_aspect_ratio.num,
477 &v->s.avctx->sample_aspect_ratio.den,
478 v->s.avctx->height * w,
479 v->s.avctx->width * h,
482 av_log(v->s.avctx, AV_LOG_DEBUG, "Aspect: %i:%i\n",
483 v->s.avctx->sample_aspect_ratio.num,
484 v->s.avctx->sample_aspect_ratio.den);
486 if (get_bits1(gb)) { //framerate stuff
488 v->s.avctx->time_base.num = 32;
489 v->s.avctx->time_base.den = get_bits(gb, 16) + 1;
492 nr = get_bits(gb, 8);
493 dr = get_bits(gb, 4);
494 if (nr > 0 && nr < 8 && dr > 0 && dr < 3) {
495 v->s.avctx->time_base.num = ff_vc1_fps_dr[dr - 1];
496 v->s.avctx->time_base.den = ff_vc1_fps_nr[nr - 1] * 1000;
499 if (v->broadcast) { // Pulldown may be present
500 v->s.avctx->time_base.den *= 2;
501 v->s.avctx->ticks_per_frame = 2;
506 v->color_prim = get_bits(gb, 8);
507 v->transfer_char = get_bits(gb, 8);
508 v->matrix_coef = get_bits(gb, 8);
512 v->hrd_param_flag = get_bits1(gb);
513 if (v->hrd_param_flag) {
515 v->hrd_num_leaky_buckets = get_bits(gb, 5);
516 skip_bits(gb, 4); //bitrate exponent
517 skip_bits(gb, 4); //buffer size exponent
518 for (i = 0; i < v->hrd_num_leaky_buckets; i++) {
519 skip_bits(gb, 16); //hrd_rate[n]
520 skip_bits(gb, 16); //hrd_buffer[n]
526 int ff_vc1_decode_entry_point(AVCodecContext *avctx, VC1Context *v, GetBitContext *gb)
531 av_log(avctx, AV_LOG_DEBUG, "Entry point: %08X\n", show_bits_long(gb, 32));
532 v->broken_link = get_bits1(gb);
533 v->closed_entry = get_bits1(gb);
534 v->panscanflag = get_bits1(gb);
535 v->refdist_flag = get_bits1(gb);
536 v->s.loop_filter = get_bits1(gb);
537 if (v->s.avctx->skip_loop_filter >= AVDISCARD_ALL)
538 v->s.loop_filter = 0;
539 v->fastuvmc = get_bits1(gb);
540 v->extended_mv = get_bits1(gb);
541 v->dquant = get_bits(gb, 2);
542 v->vstransform = get_bits1(gb);
543 v->overlap = get_bits1(gb);
544 v->quantizer_mode = get_bits(gb, 2);
546 if (v->hrd_param_flag) {
547 for (i = 0; i < v->hrd_num_leaky_buckets; i++) {
548 skip_bits(gb, 8); //hrd_full[n]
553 w = (get_bits(gb, 12)+1)<<1;
554 h = (get_bits(gb, 12)+1)<<1;
556 w = v->max_coded_width;
557 h = v->max_coded_height;
559 avcodec_set_dimensions(avctx, w, h);
561 v->extended_dmv = get_bits1(gb);
562 if ((v->range_mapy_flag = get_bits1(gb))) {
563 av_log(avctx, AV_LOG_ERROR, "Luma scaling is not supported, expect wrong picture\n");
564 v->range_mapy = get_bits(gb, 3);
566 if ((v->range_mapuv_flag = get_bits1(gb))) {
567 av_log(avctx, AV_LOG_ERROR, "Chroma scaling is not supported, expect wrong picture\n");
568 v->range_mapuv = get_bits(gb, 3);
571 av_log(avctx, AV_LOG_DEBUG, "Entry point info:\n"
572 "BrokenLink=%i, ClosedEntry=%i, PanscanFlag=%i\n"
573 "RefDist=%i, Postproc=%i, FastUVMC=%i, ExtMV=%i\n"
574 "DQuant=%i, VSTransform=%i, Overlap=%i, Qmode=%i\n",
575 v->broken_link, v->closed_entry, v->panscanflag, v->refdist_flag, v->s.loop_filter,
576 v->fastuvmc, v->extended_mv, v->dquant, v->vstransform, v->overlap, v->quantizer_mode);
581 int ff_vc1_parse_frame_header(VC1Context *v, GetBitContext* gb)
583 int pqindex, lowquant, status;
586 v->interpfrm = get_bits1(gb);
587 skip_bits(gb, 2); //framecnt unused
590 v->rangeredfrm = get_bits1(gb);
591 v->s.pict_type = get_bits1(gb);
592 if (v->s.avctx->max_b_frames) {
593 if (!v->s.pict_type) {
595 v->s.pict_type = AV_PICTURE_TYPE_I;
597 v->s.pict_type = AV_PICTURE_TYPE_B;
599 v->s.pict_type = AV_PICTURE_TYPE_P;
601 v->s.pict_type = v->s.pict_type ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_I;
604 if (v->s.pict_type == AV_PICTURE_TYPE_B) {
605 v->bfraction_lut_index = get_vlc2(gb, ff_vc1_bfraction_vlc.table, VC1_BFRACTION_VLC_BITS, 1);
606 v->bfraction = ff_vc1_bfraction_lut[v->bfraction_lut_index];
607 if (v->bfraction == 0) {
608 v->s.pict_type = AV_PICTURE_TYPE_BI;
611 if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI)
612 skip_bits(gb, 7); // skip buffer fullness
618 if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI)
620 if (v->s.pict_type == AV_PICTURE_TYPE_P)
623 /* Quantizer stuff */
624 pqindex = get_bits(gb, 5);
627 if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
628 v->pq = ff_vc1_pquant_table[0][pqindex];
630 v->pq = ff_vc1_pquant_table[1][pqindex];
633 if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
634 v->pquantizer = pqindex < 9;
635 if (v->quantizer_mode == QUANT_NON_UNIFORM)
637 v->pqindex = pqindex;
639 v->halfpq = get_bits1(gb);
642 if (v->quantizer_mode == QUANT_FRAME_EXPLICIT)
643 v->pquantizer = get_bits1(gb);
645 if (v->extended_mv == 1)
646 v->mvrange = get_unary(gb, 0, 3);
647 v->k_x = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13
648 v->k_y = v->mvrange + 8; //k_y can be 8 9 10 11
649 v->range_x = 1 << (v->k_x - 1);
650 v->range_y = 1 << (v->k_y - 1);
651 if (v->multires && v->s.pict_type != AV_PICTURE_TYPE_B)
652 v->respic = get_bits(gb, 2);
654 if (v->res_x8 && (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI)) {
655 v->x8_type = get_bits1(gb);
658 //av_log(v->s.avctx, AV_LOG_INFO, "%c Frame: QP=[%i]%i (+%i/2) %i\n",
659 // (v->s.pict_type == AV_PICTURE_TYPE_P) ? 'P' : ((v->s.pict_type == AV_PICTURE_TYPE_I) ? 'I' : 'B'), pqindex, v->pq, v->halfpq, v->rangeredfrm);
661 if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_P)
664 switch (v->s.pict_type) {
665 case AV_PICTURE_TYPE_P:
666 if (v->pq < 5) v->tt_index = 0;
667 else if (v->pq < 13) v->tt_index = 1;
668 else v->tt_index = 2;
670 lowquant = (v->pq > 12) ? 0 : 1;
671 v->mv_mode = ff_vc1_mv_pmode_table[lowquant][get_unary(gb, 1, 4)];
672 if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {
674 v->mv_mode2 = ff_vc1_mv_pmode_table2[lowquant][get_unary(gb, 1, 3)];
675 v->lumscale = get_bits(gb, 6);
676 v->lumshift = get_bits(gb, 6);
678 /* fill lookup tables for intensity compensation */
681 shift = (255 - v->lumshift * 2) << 6;
682 if (v->lumshift > 31)
685 scale = v->lumscale + 32;
686 if (v->lumshift > 31)
687 shift = (v->lumshift - 64) << 6;
689 shift = v->lumshift << 6;
691 for (i = 0; i < 256; i++) {
692 v->luty[i] = av_clip_uint8((scale * i + shift + 32) >> 6);
693 v->lutuv[i] = av_clip_uint8((scale * (i - 128) + 128*64 + 32) >> 6);
696 v->qs_last = v->s.quarter_sample;
697 if (v->mv_mode == MV_PMODE_1MV_HPEL || v->mv_mode == MV_PMODE_1MV_HPEL_BILIN)
698 v->s.quarter_sample = 0;
699 else if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {
700 if (v->mv_mode2 == MV_PMODE_1MV_HPEL || v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN)
701 v->s.quarter_sample = 0;
703 v->s.quarter_sample = 1;
705 v->s.quarter_sample = 1;
706 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));
708 if ((v->mv_mode == MV_PMODE_INTENSITY_COMP &&
709 v->mv_mode2 == MV_PMODE_MIXED_MV) ||
710 v->mv_mode == MV_PMODE_MIXED_MV) {
711 status = bitplane_decoding(v->mv_type_mb_plane, &v->mv_type_is_raw, v);
714 av_log(v->s.avctx, AV_LOG_DEBUG, "MB MV Type plane encoding: "
715 "Imode: %i, Invert: %i\n", status>>1, status&1);
717 v->mv_type_is_raw = 0;
718 memset(v->mv_type_mb_plane, 0, v->s.mb_stride * v->s.mb_height);
720 status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
723 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
724 "Imode: %i, Invert: %i\n", status>>1, status&1);
726 /* Hopefully this is correct for P frames */
727 v->s.mv_table_index = get_bits(gb, 2); //but using ff_vc1_ tables
728 v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];
731 av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
732 vop_dquant_decoding(v);
735 v->ttfrm = 0; //FIXME Is that so ?
736 if (v->vstransform) {
737 v->ttmbf = get_bits1(gb);
739 v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
746 case AV_PICTURE_TYPE_B:
747 if (v->pq < 5) v->tt_index = 0;
748 else if (v->pq < 13) v->tt_index = 1;
749 else v->tt_index = 2;
751 v->mv_mode = get_bits1(gb) ? MV_PMODE_1MV : MV_PMODE_1MV_HPEL_BILIN;
752 v->qs_last = v->s.quarter_sample;
753 v->s.quarter_sample = (v->mv_mode == MV_PMODE_1MV);
754 v->s.mspel = v->s.quarter_sample;
756 status = bitplane_decoding(v->direct_mb_plane, &v->dmb_is_raw, v);
759 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Direct Type plane encoding: "
760 "Imode: %i, Invert: %i\n", status>>1, status&1);
761 status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
764 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
765 "Imode: %i, Invert: %i\n", status>>1, status&1);
767 v->s.mv_table_index = get_bits(gb, 2);
768 v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];
771 av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
772 vop_dquant_decoding(v);
776 if (v->vstransform) {
777 v->ttmbf = get_bits1(gb);
779 v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
790 v->c_ac_table_index = decode012(gb);
791 if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI) {
792 v->y_ac_table_index = decode012(gb);
795 v->s.dc_table_index = get_bits1(gb);
798 if (v->s.pict_type == AV_PICTURE_TYPE_BI) {
799 v->s.pict_type = AV_PICTURE_TYPE_B;
805 /* fill lookup tables for intensity compensation */
806 #define INIT_LUT(lumscale, lumshift, luty, lutuv) \
809 shift = (255 - lumshift * 2) << 6; \
813 scale = lumscale + 32; \
815 shift = (lumshift - 64) << 6; \
817 shift = lumshift << 6; \
819 for (i = 0; i < 256; i++) { \
820 luty[i] = av_clip_uint8((scale * i + shift + 32) >> 6); \
821 lutuv[i] = av_clip_uint8((scale * (i - 128) + 128*64 + 32) >> 6); \
824 int ff_vc1_parse_frame_header_adv(VC1Context *v, GetBitContext* gb)
826 int pqindex, lowquant;
828 int mbmodetab, imvtab, icbptab, twomvbptab, fourmvbptab; /* useful only for debugging */
829 int scale, shift, i; /* for initializing LUT for intensity compensation */
832 v->p_frame_skipped = 0;
833 if (v->second_field) {
834 if(v->fcm!=2 || v->field_mode!=1)
836 v->s.pict_type = (v->fptype & 1) ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_I;
838 v->s.pict_type = (v->fptype & 1) ? AV_PICTURE_TYPE_BI : AV_PICTURE_TYPE_B;
839 v->s.current_picture_ptr->f.pict_type = v->s.pict_type;
840 if (!v->pic_header_flag)
841 goto parse_common_info;
846 v->fcm = decode012(gb);
848 if (v->fcm == ILACE_FIELD)
850 if (!v->warn_interlaced++)
851 av_log(v->s.avctx, AV_LOG_ERROR,
852 "Interlaced frames/fields support is incomplete\n");
855 v->fcm = PROGRESSIVE;
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 av_log_missing_feature(v->s.avctx, "Pan-scan", 0);
897 if (v->p_frame_skipped) {
900 v->rnd = get_bits1(gb);
902 v->uvsamp = get_bits1(gb);
903 if(!ff_vc1_bfraction_vlc.table)
904 return 0; //parsing only, vlc tables havnt been allocated
906 if (!v->refdist_flag)
908 else if ((v->s.pict_type != AV_PICTURE_TYPE_B) && (v->s.pict_type != AV_PICTURE_TYPE_BI)) {
909 v->refdist = get_bits(gb, 2);
911 v->refdist += get_unary(gb, 0, 16);
913 if ((v->s.pict_type == AV_PICTURE_TYPE_B) || (v->s.pict_type == AV_PICTURE_TYPE_BI)) {
914 v->bfraction_lut_index = get_vlc2(gb, ff_vc1_bfraction_vlc.table, VC1_BFRACTION_VLC_BITS, 1);
915 v->bfraction = ff_vc1_bfraction_lut[v->bfraction_lut_index];
916 v->frfd = (v->bfraction * v->refdist) >> 8;
917 v->brfd = v->refdist - v->frfd - 1;
921 goto parse_common_info;
923 if (v->fcm == PROGRESSIVE) {
925 v->interpfrm = get_bits1(gb);
926 if (v->s.pict_type == AV_PICTURE_TYPE_B) {
927 v->bfraction_lut_index = get_vlc2(gb, ff_vc1_bfraction_vlc.table, VC1_BFRACTION_VLC_BITS, 1);
928 v->bfraction = ff_vc1_bfraction_lut[v->bfraction_lut_index];
929 if (v->bfraction == 0) {
930 v->s.pict_type = AV_PICTURE_TYPE_BI; /* XXX: should not happen here */
937 v->cur_field_type = !(v->tff ^ v->second_field);
938 pqindex = get_bits(gb, 5);
941 v->pqindex = pqindex;
942 if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
943 v->pq = ff_vc1_pquant_table[0][pqindex];
945 v->pq = ff_vc1_pquant_table[1][pqindex];
948 if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
949 v->pquantizer = pqindex < 9;
950 if (v->quantizer_mode == QUANT_NON_UNIFORM)
952 v->pqindex = pqindex;
954 v->halfpq = get_bits1(gb);
957 if (v->quantizer_mode == QUANT_FRAME_EXPLICIT)
958 v->pquantizer = get_bits1(gb);
960 v->postproc = get_bits(gb, 2);
962 if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_P)
968 switch (v->s.pict_type) {
969 case AV_PICTURE_TYPE_I:
970 case AV_PICTURE_TYPE_BI:
971 if (v->fcm == ILACE_FRAME) { //interlace frame picture
972 status = bitplane_decoding(v->fieldtx_plane, &v->fieldtx_is_raw, v);
975 av_log(v->s.avctx, AV_LOG_DEBUG, "FIELDTX plane encoding: "
976 "Imode: %i, Invert: %i\n", status>>1, status&1);
978 status = bitplane_decoding(v->acpred_plane, &v->acpred_is_raw, v);
981 av_log(v->s.avctx, AV_LOG_DEBUG, "ACPRED plane encoding: "
982 "Imode: %i, Invert: %i\n", status>>1, status&1);
983 v->condover = CONDOVER_NONE;
984 if (v->overlap && v->pq <= 8) {
985 v->condover = decode012(gb);
986 if (v->condover == CONDOVER_SELECT) {
987 status = bitplane_decoding(v->over_flags_plane, &v->overflg_is_raw, v);
990 av_log(v->s.avctx, AV_LOG_DEBUG, "CONDOVER plane encoding: "
991 "Imode: %i, Invert: %i\n", status>>1, status&1);
995 case AV_PICTURE_TYPE_P:
997 v->numref = get_bits1(gb);
999 v->reffield = get_bits1(gb);
1000 v->ref_field_type[0] = v->reffield ^ !v->cur_field_type;
1004 v->mvrange = get_unary(gb, 0, 3);
1008 if (v->extended_dmv)
1009 v->dmvrange = get_unary(gb, 0, 3);
1012 if (v->fcm == ILACE_FRAME) { // interlaced frame picture
1013 v->fourmvswitch = get_bits1(gb);
1014 v->intcomp = get_bits1(gb);
1016 v->lumscale = get_bits(gb, 6);
1017 v->lumshift = get_bits(gb, 6);
1018 INIT_LUT(v->lumscale, v->lumshift, v->luty, v->lutuv);
1020 status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
1021 av_log(v->s.avctx, AV_LOG_DEBUG, "SKIPMB plane encoding: "
1022 "Imode: %i, Invert: %i\n", status>>1, status&1);
1023 mbmodetab = get_bits(gb, 2);
1024 if (v->fourmvswitch)
1025 v->mbmode_vlc = &ff_vc1_intfr_4mv_mbmode_vlc[mbmodetab];
1027 v->mbmode_vlc = &ff_vc1_intfr_non4mv_mbmode_vlc[mbmodetab];
1028 imvtab = get_bits(gb, 2);
1029 v->imv_vlc = &ff_vc1_1ref_mvdata_vlc[imvtab];
1030 // interlaced p-picture cbpcy range is [1, 63]
1031 icbptab = get_bits(gb, 3);
1032 v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[icbptab];
1033 twomvbptab = get_bits(gb, 2);
1034 v->twomvbp_vlc = &ff_vc1_2mv_block_pattern_vlc[twomvbptab];
1035 if (v->fourmvswitch) {
1036 fourmvbptab = get_bits(gb, 2);
1037 v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[fourmvbptab];
1041 v->k_x = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13
1042 v->k_y = v->mvrange + 8; //k_y can be 8 9 10 11
1043 v->range_x = 1 << (v->k_x - 1);
1044 v->range_y = 1 << (v->k_y - 1);
1048 else if (v->pq < 13)
1052 if (v->fcm != ILACE_FRAME) {
1054 mvmode = get_unary(gb, 1, 4);
1055 lowquant = (v->pq > 12) ? 0 : 1;
1056 v->mv_mode = ff_vc1_mv_pmode_table[lowquant][mvmode];
1057 if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {
1059 mvmode2 = get_unary(gb, 1, 3);
1060 v->mv_mode2 = ff_vc1_mv_pmode_table2[lowquant][mvmode2];
1062 v->intcompfield = decode210(gb);
1063 v->lumscale = get_bits(gb, 6);
1064 v->lumshift = get_bits(gb, 6);
1065 INIT_LUT(v->lumscale, v->lumshift, v->luty, v->lutuv);
1066 if ((v->field_mode) && !v->intcompfield) {
1067 v->lumscale2 = get_bits(gb, 6);
1068 v->lumshift2 = get_bits(gb, 6);
1069 INIT_LUT(v->lumscale2, v->lumshift2, v->luty2, v->lutuv2);
1073 v->qs_last = v->s.quarter_sample;
1074 if (v->mv_mode == MV_PMODE_1MV_HPEL || v->mv_mode == MV_PMODE_1MV_HPEL_BILIN)
1075 v->s.quarter_sample = 0;
1076 else if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {
1077 if (v->mv_mode2 == MV_PMODE_1MV_HPEL || v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN)
1078 v->s.quarter_sample = 0;
1080 v->s.quarter_sample = 1;
1082 v->s.quarter_sample = 1;
1083 v->s.mspel = !(v->mv_mode == MV_PMODE_1MV_HPEL_BILIN
1084 || (v->mv_mode == MV_PMODE_INTENSITY_COMP
1085 && v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN));
1087 if (v->fcm == PROGRESSIVE) { // progressive
1088 if ((v->mv_mode == MV_PMODE_INTENSITY_COMP &&
1089 v->mv_mode2 == MV_PMODE_MIXED_MV)
1090 || v->mv_mode == MV_PMODE_MIXED_MV) {
1091 status = bitplane_decoding(v->mv_type_mb_plane, &v->mv_type_is_raw, v);
1094 av_log(v->s.avctx, AV_LOG_DEBUG, "MB MV Type plane encoding: "
1095 "Imode: %i, Invert: %i\n", status>>1, status&1);
1097 v->mv_type_is_raw = 0;
1098 memset(v->mv_type_mb_plane, 0, v->s.mb_stride * v->s.mb_height);
1100 status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
1103 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
1104 "Imode: %i, Invert: %i\n", status>>1, status&1);
1106 /* Hopefully this is correct for P frames */
1107 v->s.mv_table_index = get_bits(gb, 2); //but using ff_vc1_ tables
1108 v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];
1109 } else if (v->fcm == ILACE_FRAME) { // frame interlaced
1110 v->qs_last = v->s.quarter_sample;
1111 v->s.quarter_sample = 1;
1113 } else { // field interlaced
1114 mbmodetab = get_bits(gb, 3);
1115 imvtab = get_bits(gb, 2 + v->numref);
1117 v->imv_vlc = &ff_vc1_1ref_mvdata_vlc[imvtab];
1119 v->imv_vlc = &ff_vc1_2ref_mvdata_vlc[imvtab];
1120 icbptab = get_bits(gb, 3);
1121 v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[icbptab];
1122 if ((v->mv_mode == MV_PMODE_INTENSITY_COMP &&
1123 v->mv_mode2 == MV_PMODE_MIXED_MV) || v->mv_mode == MV_PMODE_MIXED_MV) {
1124 fourmvbptab = get_bits(gb, 2);
1125 v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[fourmvbptab];
1126 v->mbmode_vlc = &ff_vc1_if_mmv_mbmode_vlc[mbmodetab];
1128 v->mbmode_vlc = &ff_vc1_if_1mv_mbmode_vlc[mbmodetab];
1132 av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
1133 vop_dquant_decoding(v);
1136 v->ttfrm = 0; //FIXME Is that so ?
1137 if (v->vstransform) {
1138 v->ttmbf = get_bits1(gb);
1140 v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
1147 case AV_PICTURE_TYPE_B:
1148 if (v->fcm == ILACE_FRAME) {
1149 v->bfraction_lut_index = get_vlc2(gb, ff_vc1_bfraction_vlc.table, VC1_BFRACTION_VLC_BITS, 1);
1150 v->bfraction = ff_vc1_bfraction_lut[v->bfraction_lut_index];
1151 if (v->bfraction == 0) {
1154 return -1; // This codepath is still incomplete thus it is disabled
1157 v->mvrange = get_unary(gb, 0, 3);
1160 v->k_x = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13
1161 v->k_y = v->mvrange + 8; //k_y can be 8 9 10 11
1162 v->range_x = 1 << (v->k_x - 1);
1163 v->range_y = 1 << (v->k_y - 1);
1167 else if (v->pq < 13)
1172 if (v->field_mode) {
1174 av_log(v->s.avctx, AV_LOG_DEBUG, "B Fields\n");
1175 if (v->extended_dmv)
1176 v->dmvrange = get_unary(gb, 0, 3);
1177 mvmode = get_unary(gb, 1, 3);
1178 lowquant = (v->pq > 12) ? 0 : 1;
1179 v->mv_mode = ff_vc1_mv_pmode_table2[lowquant][mvmode];
1180 v->qs_last = v->s.quarter_sample;
1181 v->s.quarter_sample = (v->mv_mode == MV_PMODE_1MV || v->mv_mode == MV_PMODE_MIXED_MV);
1182 v->s.mspel = !(v->mv_mode == MV_PMODE_1MV_HPEL_BILIN || v->mv_mode == MV_PMODE_1MV_HPEL);
1183 status = bitplane_decoding(v->forward_mb_plane, &v->fmb_is_raw, v);
1186 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Forward Type plane encoding: "
1187 "Imode: %i, Invert: %i\n", status>>1, status&1);
1188 mbmodetab = get_bits(gb, 3);
1189 if (v->mv_mode == MV_PMODE_MIXED_MV)
1190 v->mbmode_vlc = &ff_vc1_if_mmv_mbmode_vlc[mbmodetab];
1192 v->mbmode_vlc = &ff_vc1_if_1mv_mbmode_vlc[mbmodetab];
1193 imvtab = get_bits(gb, 3);
1194 v->imv_vlc = &ff_vc1_2ref_mvdata_vlc[imvtab];
1195 icbptab = get_bits(gb, 3);
1196 v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[icbptab];
1197 if (v->mv_mode == MV_PMODE_MIXED_MV) {
1198 fourmvbptab = get_bits(gb, 2);
1199 v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[fourmvbptab];
1201 v->numref = 1; // interlaced field B pictures are always 2-ref
1202 } else if (v->fcm == ILACE_FRAME) {
1203 if (v->extended_dmv)
1204 v->dmvrange = get_unary(gb, 0, 3);
1205 get_bits1(gb); /* intcomp - present but shall always be 0 */
1207 v->mv_mode = MV_PMODE_1MV;
1208 v->fourmvswitch = 0;
1209 v->qs_last = v->s.quarter_sample;
1210 v->s.quarter_sample = 1;
1212 status = bitplane_decoding(v->direct_mb_plane, &v->dmb_is_raw, v);
1215 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Direct Type plane encoding: "
1216 "Imode: %i, Invert: %i\n", status>>1, status&1);
1217 status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
1220 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
1221 "Imode: %i, Invert: %i\n", status>>1, status&1);
1222 mbmodetab = get_bits(gb, 2);
1223 v->mbmode_vlc = &ff_vc1_intfr_non4mv_mbmode_vlc[mbmodetab];
1224 imvtab = get_bits(gb, 2);
1225 v->imv_vlc = &ff_vc1_1ref_mvdata_vlc[imvtab];
1226 // interlaced p/b-picture cbpcy range is [1, 63]
1227 icbptab = get_bits(gb, 3);
1228 v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[icbptab];
1229 twomvbptab = get_bits(gb, 2);
1230 v->twomvbp_vlc = &ff_vc1_2mv_block_pattern_vlc[twomvbptab];
1231 fourmvbptab = get_bits(gb, 2);
1232 v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[fourmvbptab];
1234 v->mv_mode = get_bits1(gb) ? MV_PMODE_1MV : MV_PMODE_1MV_HPEL_BILIN;
1235 v->qs_last = v->s.quarter_sample;
1236 v->s.quarter_sample = (v->mv_mode == MV_PMODE_1MV);
1237 v->s.mspel = v->s.quarter_sample;
1238 status = bitplane_decoding(v->direct_mb_plane, &v->dmb_is_raw, v);
1241 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Direct Type plane encoding: "
1242 "Imode: %i, Invert: %i\n", status>>1, status&1);
1243 status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
1246 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
1247 "Imode: %i, Invert: %i\n", status>>1, status&1);
1248 v->s.mv_table_index = get_bits(gb, 2);
1249 v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];
1253 av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
1254 vop_dquant_decoding(v);
1258 if (v->vstransform) {
1259 v->ttmbf = get_bits1(gb);
1261 v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
1271 v->c_ac_table_index = decode012(gb);
1272 if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI) {
1273 v->y_ac_table_index = decode012(gb);
1276 v->s.dc_table_index = get_bits1(gb);
1277 if ((v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI)
1279 av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
1280 vop_dquant_decoding(v);
1284 if (v->s.pict_type == AV_PICTURE_TYPE_BI) {
1285 v->s.pict_type = AV_PICTURE_TYPE_B;
1291 static const uint32_t vc1_ac_tables[AC_MODES][186][2] = {
1293 { 0x0001, 2}, { 0x0005, 3}, { 0x000D, 4}, { 0x0012, 5}, { 0x000E, 6}, { 0x0015, 7},
1294 { 0x0013, 8}, { 0x003F, 8}, { 0x004B, 9}, { 0x011F, 9}, { 0x00B8, 10}, { 0x03E3, 10},
1295 { 0x0172, 11}, { 0x024D, 12}, { 0x03DA, 12}, { 0x02DD, 13}, { 0x1F55, 13}, { 0x05B9, 14},
1296 { 0x3EAE, 14}, { 0x0000, 4}, { 0x0010, 5}, { 0x0008, 7}, { 0x0020, 8}, { 0x0029, 9},
1297 { 0x01F4, 9}, { 0x0233, 10}, { 0x01E0, 11}, { 0x012A, 12}, { 0x03DD, 12}, { 0x050A, 13},
1298 { 0x1F29, 13}, { 0x0A42, 14}, { 0x1272, 15}, { 0x1737, 15}, { 0x0003, 5}, { 0x0011, 7},
1299 { 0x00C4, 8}, { 0x004B, 10}, { 0x00B4, 11}, { 0x07D4, 11}, { 0x0345, 12}, { 0x02D7, 13},
1300 { 0x07BF, 13}, { 0x0938, 14}, { 0x0BBB, 14}, { 0x095E, 15}, { 0x0013, 5}, { 0x0078, 7},
1301 { 0x0069, 9}, { 0x0232, 10}, { 0x0461, 11}, { 0x03EC, 12}, { 0x0520, 13}, { 0x1F2A, 13},
1302 { 0x3E50, 14}, { 0x3E51, 14}, { 0x1486, 15}, { 0x000C, 6}, { 0x0024, 9}, { 0x0094, 11},
1303 { 0x08C0, 12}, { 0x0F09, 14}, { 0x1EF0, 15}, { 0x003D, 6}, { 0x0053, 9}, { 0x01A0, 11},
1304 { 0x02D6, 13}, { 0x0F08, 14}, { 0x0013, 7}, { 0x007C, 9}, { 0x07C1, 11}, { 0x04AC, 14},
1305 { 0x001B, 7}, { 0x00A0, 10}, { 0x0344, 12}, { 0x0F79, 14}, { 0x0079, 7}, { 0x03E1, 10},
1306 { 0x02D4, 13}, { 0x2306, 14}, { 0x0021, 8}, { 0x023C, 10}, { 0x0FAE, 12}, { 0x23DE, 14},
1307 { 0x0035, 8}, { 0x0175, 11}, { 0x07B3, 13}, { 0x00C5, 8}, { 0x0174, 11}, { 0x0785, 13},
1308 { 0x0048, 9}, { 0x01A3, 11}, { 0x049E, 13}, { 0x002C, 9}, { 0x00FA, 10}, { 0x07D6, 11},
1309 { 0x0092, 10}, { 0x05CC, 13}, { 0x1EF1, 15}, { 0x00A3, 10}, { 0x03ED, 12}, { 0x093E, 14},
1310 { 0x01E2, 11}, { 0x1273, 15}, { 0x07C4, 11}, { 0x1487, 15}, { 0x0291, 12}, { 0x0293, 12},
1311 { 0x0F8A, 12}, { 0x0509, 13}, { 0x0508, 13}, { 0x078D, 13}, { 0x07BE, 13}, { 0x078C, 13},
1312 { 0x04AE, 14}, { 0x0BBA, 14}, { 0x2307, 14}, { 0x0B9A, 14}, { 0x1736, 15}, { 0x000E, 4},
1313 { 0x0045, 7}, { 0x01F3, 9}, { 0x047A, 11}, { 0x05DC, 13}, { 0x23DF, 14}, { 0x0019, 5},
1314 { 0x0028, 9}, { 0x0176, 11}, { 0x049D, 13}, { 0x23DD, 14}, { 0x0030, 6}, { 0x00A2, 10},
1315 { 0x02EF, 12}, { 0x05B8, 14}, { 0x003F, 6}, { 0x00A5, 10}, { 0x03DB, 12}, { 0x093F, 14},
1316 { 0x0044, 7}, { 0x07CB, 11}, { 0x095F, 15}, { 0x0063, 7}, { 0x03C3, 12}, { 0x0015, 8},
1317 { 0x08F6, 12}, { 0x0017, 8}, { 0x0498, 13}, { 0x002C, 8}, { 0x07B2, 13}, { 0x002F, 8},
1318 { 0x1F54, 13}, { 0x008D, 8}, { 0x07BD, 13}, { 0x008E, 8}, { 0x1182, 13}, { 0x00FB, 8},
1319 { 0x050B, 13}, { 0x002D, 8}, { 0x07C0, 11}, { 0x0079, 9}, { 0x1F5F, 13}, { 0x007A, 9},
1320 { 0x1F56, 13}, { 0x0231, 10}, { 0x03E4, 10}, { 0x01A1, 11}, { 0x0143, 11}, { 0x01F7, 11},
1321 { 0x016F, 12}, { 0x0292, 12}, { 0x02E7, 12}, { 0x016C, 12}, { 0x016D, 12}, { 0x03DC, 12},
1322 { 0x0F8B, 12}, { 0x0499, 13}, { 0x03D8, 12}, { 0x078E, 13}, { 0x02D5, 13}, { 0x1F5E, 13},
1323 { 0x1F2B, 13}, { 0x078F, 13}, { 0x04AD, 14}, { 0x3EAF, 14}, { 0x23DC, 14}, { 0x004A, 9}
1326 { 0x0000, 3}, { 0x0003, 4}, { 0x000B, 5}, { 0x0014, 6}, { 0x003F, 6}, { 0x005D, 7},
1327 { 0x00A2, 8}, { 0x00AC, 9}, { 0x016E, 9}, { 0x020A, 10}, { 0x02E2, 10}, { 0x0432, 11},
1328 { 0x05C9, 11}, { 0x0827, 12}, { 0x0B54, 12}, { 0x04E6, 13}, { 0x105F, 13}, { 0x172A, 13},
1329 { 0x20B2, 14}, { 0x2D4E, 14}, { 0x39F0, 14}, { 0x4175, 15}, { 0x5A9E, 15}, { 0x0004, 4},
1330 { 0x001E, 5}, { 0x0042, 7}, { 0x00B6, 8}, { 0x0173, 9}, { 0x0395, 10}, { 0x072E, 11},
1331 { 0x0B94, 12}, { 0x16A4, 13}, { 0x20B3, 14}, { 0x2E45, 14}, { 0x0005, 5}, { 0x0040, 7},
1332 { 0x0049, 9}, { 0x028F, 10}, { 0x05CB, 11}, { 0x048A, 13}, { 0x09DD, 14}, { 0x73E2, 15},
1333 { 0x0018, 5}, { 0x0025, 8}, { 0x008A, 10}, { 0x051B, 11}, { 0x0E5F, 12}, { 0x09C9, 14},
1334 { 0x139C, 15}, { 0x0029, 6}, { 0x004F, 9}, { 0x0412, 11}, { 0x048D, 13}, { 0x2E41, 14},
1335 { 0x0038, 6}, { 0x010E, 9}, { 0x05A8, 11}, { 0x105C, 13}, { 0x39F2, 14}, { 0x0058, 7},
1336 { 0x021F, 10}, { 0x0E7E, 12}, { 0x39FF, 14}, { 0x0023, 8}, { 0x02E3, 10}, { 0x04E5, 13},
1337 { 0x2E40, 14}, { 0x00A1, 8}, { 0x05BE, 11}, { 0x09C8, 14}, { 0x0083, 8}, { 0x013A, 11},
1338 { 0x1721, 13}, { 0x0044, 9}, { 0x0276, 12}, { 0x39F6, 14}, { 0x008B, 10}, { 0x04EF, 13},
1339 { 0x5A9B, 15}, { 0x0208, 10}, { 0x1CFE, 13}, { 0x0399, 10}, { 0x1CB4, 13}, { 0x039E, 10},
1340 { 0x39F3, 14}, { 0x05AB, 11}, { 0x73E3, 15}, { 0x0737, 11}, { 0x5A9F, 15}, { 0x082D, 12},
1341 { 0x0E69, 12}, { 0x0E68, 12}, { 0x0433, 11}, { 0x0B7B, 12}, { 0x2DF8, 14}, { 0x2E56, 14},
1342 { 0x2E57, 14}, { 0x39F7, 14}, { 0x51A5, 15}, { 0x0003, 3}, { 0x002A, 6}, { 0x00E4, 8},
1343 { 0x028E, 10}, { 0x0735, 11}, { 0x1058, 13}, { 0x1CFA, 13}, { 0x2DF9, 14}, { 0x4174, 15},
1344 { 0x0009, 4}, { 0x0054, 8}, { 0x0398, 10}, { 0x048B, 13}, { 0x139D, 15}, { 0x000D, 4},
1345 { 0x00AD, 9}, { 0x0826, 12}, { 0x2D4C, 14}, { 0x0011, 5}, { 0x016B, 9}, { 0x0B7F, 12},
1346 { 0x51A4, 15}, { 0x0019, 5}, { 0x021B, 10}, { 0x16FD, 13}, { 0x001D, 5}, { 0x0394, 10},
1347 { 0x28D3, 14}, { 0x002B, 6}, { 0x05BC, 11}, { 0x5A9A, 15}, { 0x002F, 6}, { 0x0247, 12},
1348 { 0x0010, 7}, { 0x0A35, 12}, { 0x003E, 6}, { 0x0B7A, 12}, { 0x0059, 7}, { 0x105E, 13},
1349 { 0x0026, 8}, { 0x09CF, 14}, { 0x0055, 8}, { 0x1CB5, 13}, { 0x0057, 8}, { 0x0E5B, 12},
1350 { 0x00A0, 8}, { 0x1468, 13}, { 0x0170, 9}, { 0x0090, 10}, { 0x01CE, 9}, { 0x021A, 10},
1351 { 0x0218, 10}, { 0x0168, 9}, { 0x021E, 10}, { 0x0244, 12}, { 0x0736, 11}, { 0x0138, 11},
1352 { 0x0519, 11}, { 0x0E5E, 12}, { 0x072C, 11}, { 0x0B55, 12}, { 0x09DC, 14}, { 0x20BB, 14},
1353 { 0x048C, 13}, { 0x1723, 13}, { 0x2E44, 14}, { 0x16A5, 13}, { 0x0518, 11}, { 0x39FE, 14},
1357 { 0x0001, 2}, { 0x0006, 3}, { 0x000F, 4}, { 0x0016, 5}, { 0x0020, 6}, { 0x0018, 7},
1358 { 0x0008, 8}, { 0x009A, 8}, { 0x0056, 9}, { 0x013E, 9}, { 0x00F0, 10}, { 0x03A5, 10},
1359 { 0x0077, 11}, { 0x01EF, 11}, { 0x009A, 12}, { 0x005D, 13}, { 0x0001, 4}, { 0x0011, 5},
1360 { 0x0002, 7}, { 0x000B, 8}, { 0x0012, 9}, { 0x01D6, 9}, { 0x027E, 10}, { 0x0191, 11},
1361 { 0x00EA, 12}, { 0x03DC, 12}, { 0x013B, 13}, { 0x0004, 5}, { 0x0014, 7}, { 0x009E, 8},
1362 { 0x0009, 10}, { 0x01AC, 11}, { 0x01E2, 11}, { 0x03CA, 12}, { 0x005F, 13}, { 0x0017, 5},
1363 { 0x004E, 7}, { 0x005E, 9}, { 0x00F3, 10}, { 0x01AD, 11}, { 0x00EC, 12}, { 0x05F0, 13},
1364 { 0x000E, 6}, { 0x00E1, 8}, { 0x03A4, 10}, { 0x009C, 12}, { 0x013D, 13}, { 0x003B, 6},
1365 { 0x001C, 9}, { 0x0014, 11}, { 0x09BE, 12}, { 0x0006, 7}, { 0x007A, 9}, { 0x0190, 11},
1366 { 0x0137, 13}, { 0x001B, 7}, { 0x0008, 10}, { 0x075C, 11}, { 0x0071, 7}, { 0x00D7, 10},
1367 { 0x09BF, 12}, { 0x0007, 8}, { 0x00AF, 10}, { 0x04CC, 11}, { 0x0034, 8}, { 0x0265, 10},
1368 { 0x009F, 12}, { 0x00E0, 8}, { 0x0016, 11}, { 0x0327, 12}, { 0x0015, 9}, { 0x017D, 11},
1369 { 0x0EBB, 12}, { 0x0014, 9}, { 0x00F6, 10}, { 0x01E4, 11}, { 0x00CB, 10}, { 0x099D, 12},
1370 { 0x00CA, 10}, { 0x02FC, 12}, { 0x017F, 11}, { 0x04CD, 11}, { 0x02FD, 12}, { 0x04FE, 11},
1371 { 0x013A, 13}, { 0x000A, 4}, { 0x0042, 7}, { 0x01D3, 9}, { 0x04DD, 11}, { 0x0012, 5},
1372 { 0x00E8, 8}, { 0x004C, 11}, { 0x0136, 13}, { 0x0039, 6}, { 0x0264, 10}, { 0x0EBA, 12},
1373 { 0x0000, 7}, { 0x00AE, 10}, { 0x099C, 12}, { 0x001F, 7}, { 0x04DE, 11}, { 0x0043, 7},
1374 { 0x04DC, 11}, { 0x0003, 8}, { 0x03CB, 12}, { 0x0006, 8}, { 0x099E, 12}, { 0x002A, 8},
1375 { 0x05F1, 13}, { 0x000F, 8}, { 0x09FE, 12}, { 0x0033, 8}, { 0x09FF, 12}, { 0x0098, 8},
1376 { 0x099F, 12}, { 0x00EA, 8}, { 0x013C, 13}, { 0x002E, 8}, { 0x0192, 11}, { 0x0136, 9},
1377 { 0x006A, 9}, { 0x0015, 11}, { 0x03AF, 10}, { 0x01E3, 11}, { 0x0074, 11}, { 0x00EB, 12},
1378 { 0x02F9, 12}, { 0x005C, 13}, { 0x00ED, 12}, { 0x03DD, 12}, { 0x0326, 12}, { 0x005E, 13},
1382 { 0x0004, 3}, { 0x0014, 5}, { 0x0017, 7}, { 0x007F, 8}, { 0x0154, 9}, { 0x01F2, 10},
1383 { 0x00BF, 11}, { 0x0065, 12}, { 0x0AAA, 12}, { 0x0630, 13}, { 0x1597, 13}, { 0x03B7, 14},
1384 { 0x2B22, 14}, { 0x0BE6, 15}, { 0x000B, 4}, { 0x0037, 7}, { 0x0062, 9}, { 0x0007, 11},
1385 { 0x0166, 12}, { 0x00CE, 13}, { 0x1590, 13}, { 0x05F6, 14}, { 0x0BE7, 15}, { 0x0007, 5},
1386 { 0x006D, 8}, { 0x0003, 11}, { 0x031F, 12}, { 0x05F2, 14}, { 0x0002, 6}, { 0x0061, 9},
1387 { 0x0055, 12}, { 0x01DF, 14}, { 0x001A, 6}, { 0x001E, 10}, { 0x0AC9, 12}, { 0x2B23, 14},
1388 { 0x001E, 6}, { 0x001F, 10}, { 0x0AC3, 12}, { 0x2B2B, 14}, { 0x0006, 7}, { 0x0004, 11},
1389 { 0x02F8, 13}, { 0x0019, 7}, { 0x0006, 11}, { 0x063D, 13}, { 0x0057, 7}, { 0x0182, 11},
1390 { 0x2AA2, 14}, { 0x0004, 8}, { 0x0180, 11}, { 0x059C, 14}, { 0x007D, 8}, { 0x0164, 12},
1391 { 0x076D, 15}, { 0x0002, 9}, { 0x018D, 11}, { 0x1581, 13}, { 0x00AD, 8}, { 0x0060, 12},
1392 { 0x0C67, 14}, { 0x001C, 9}, { 0x00EE, 13}, { 0x0003, 9}, { 0x02CF, 13}, { 0x00D9, 9},
1393 { 0x1580, 13}, { 0x0002, 11}, { 0x0183, 11}, { 0x0057, 12}, { 0x0061, 12}, { 0x0031, 11},
1394 { 0x0066, 12}, { 0x0631, 13}, { 0x0632, 13}, { 0x00AC, 13}, { 0x031D, 12}, { 0x0076, 12},
1395 { 0x003A, 11}, { 0x0165, 12}, { 0x0C66, 14}, { 0x0003, 2}, { 0x0054, 7}, { 0x02AB, 10},
1396 { 0x0016, 13}, { 0x05F7, 14}, { 0x0005, 4}, { 0x00F8, 9}, { 0x0AA9, 12}, { 0x005F, 15},
1397 { 0x0004, 4}, { 0x001C, 10}, { 0x1550, 13}, { 0x0004, 5}, { 0x0077, 11}, { 0x076C, 15},
1398 { 0x000E, 5}, { 0x000A, 12}, { 0x000C, 5}, { 0x0562, 11}, { 0x0004, 6}, { 0x031C, 12},
1399 { 0x0006, 6}, { 0x00C8, 13}, { 0x000D, 6}, { 0x01DA, 13}, { 0x0007, 6}, { 0x00C9, 13},
1400 { 0x0001, 7}, { 0x002E, 14}, { 0x0014, 7}, { 0x1596, 13}, { 0x000A, 7}, { 0x0AC2, 12},
1401 { 0x0016, 7}, { 0x015B, 14}, { 0x0015, 7}, { 0x015A, 14}, { 0x000F, 8}, { 0x005E, 15},
1402 { 0x007E, 8}, { 0x00AB, 8}, { 0x002D, 9}, { 0x00D8, 9}, { 0x000B, 9}, { 0x0014, 10},
1403 { 0x02B3, 10}, { 0x01F3, 10}, { 0x003A, 10}, { 0x0000, 10}, { 0x0058, 10}, { 0x002E, 9},
1404 { 0x005E, 10}, { 0x0563, 11}, { 0x00EC, 12}, { 0x0054, 12}, { 0x0AC1, 12}, { 0x1556, 13},
1405 { 0x02FA, 13}, { 0x0181, 11}, { 0x1557, 13}, { 0x059D, 14}, { 0x2AA3, 14}, { 0x2B2A, 14},
1406 { 0x01DE, 14}, { 0x063C, 13}, { 0x00CF, 13}, { 0x1594, 13}, { 0x000D, 9}
1409 { 0x0002, 2}, { 0x0006, 3}, { 0x000F, 4}, { 0x000D, 5}, { 0x000C, 5}, { 0x0015, 6},
1410 { 0x0013, 6}, { 0x0012, 6}, { 0x0017, 7}, { 0x001F, 8}, { 0x001E, 8}, { 0x001D, 8},
1411 { 0x0025, 9}, { 0x0024, 9}, { 0x0023, 9}, { 0x0021, 9}, { 0x0021, 10}, { 0x0020, 10},
1412 { 0x000F, 10}, { 0x000E, 10}, { 0x0007, 11}, { 0x0006, 11}, { 0x0020, 11}, { 0x0021, 11},
1413 { 0x0050, 12}, { 0x0051, 12}, { 0x0052, 12}, { 0x000E, 4}, { 0x0014, 6}, { 0x0016, 7},
1414 { 0x001C, 8}, { 0x0020, 9}, { 0x001F, 9}, { 0x000D, 10}, { 0x0022, 11}, { 0x0053, 12},
1415 { 0x0055, 12}, { 0x000B, 5}, { 0x0015, 7}, { 0x001E, 9}, { 0x000C, 10}, { 0x0056, 12},
1416 { 0x0011, 6}, { 0x001B, 8}, { 0x001D, 9}, { 0x000B, 10}, { 0x0010, 6}, { 0x0022, 9},
1417 { 0x000A, 10}, { 0x000D, 6}, { 0x001C, 9}, { 0x0008, 10}, { 0x0012, 7}, { 0x001B, 9},
1418 { 0x0054, 12}, { 0x0014, 7}, { 0x001A, 9}, { 0x0057, 12}, { 0x0019, 8}, { 0x0009, 10},
1419 { 0x0018, 8}, { 0x0023, 11}, { 0x0017, 8}, { 0x0019, 9}, { 0x0018, 9}, { 0x0007, 10},
1420 { 0x0058, 12}, { 0x0007, 4}, { 0x000C, 6}, { 0x0016, 8}, { 0x0017, 9}, { 0x0006, 10},
1421 { 0x0005, 11}, { 0x0004, 11}, { 0x0059, 12}, { 0x000F, 6}, { 0x0016, 9}, { 0x0005, 10},
1422 { 0x000E, 6}, { 0x0004, 10}, { 0x0011, 7}, { 0x0024, 11}, { 0x0010, 7}, { 0x0025, 11},
1423 { 0x0013, 7}, { 0x005A, 12}, { 0x0015, 8}, { 0x005B, 12}, { 0x0014, 8}, { 0x0013, 8},
1424 { 0x001A, 8}, { 0x0015, 9}, { 0x0014, 9}, { 0x0013, 9}, { 0x0012, 9}, { 0x0011, 9},
1425 { 0x0026, 11}, { 0x0027, 11}, { 0x005C, 12}, { 0x005D, 12}, { 0x005E, 12}, { 0x005F, 12},
1429 { 0x0002, 2}, { 0x000F, 4}, { 0x0015, 6}, { 0x0017, 7}, { 0x001F, 8}, { 0x0025, 9},
1430 { 0x0024, 9}, { 0x0021, 10}, { 0x0020, 10}, { 0x0007, 11}, { 0x0006, 11}, { 0x0020, 11},
1431 { 0x0006, 3}, { 0x0014, 6}, { 0x001E, 8}, { 0x000F, 10}, { 0x0021, 11}, { 0x0050, 12},
1432 { 0x000E, 4}, { 0x001D, 8}, { 0x000E, 10}, { 0x0051, 12}, { 0x000D, 5}, { 0x0023, 9},
1433 { 0x000D, 10}, { 0x000C, 5}, { 0x0022, 9}, { 0x0052, 12}, { 0x000B, 5}, { 0x000C, 10},
1434 { 0x0053, 12}, { 0x0013, 6}, { 0x000B, 10}, { 0x0054, 12}, { 0x0012, 6}, { 0x000A, 10},
1435 { 0x0011, 6}, { 0x0009, 10}, { 0x0010, 6}, { 0x0008, 10}, { 0x0016, 7}, { 0x0055, 12},
1436 { 0x0015, 7}, { 0x0014, 7}, { 0x001C, 8}, { 0x001B, 8}, { 0x0021, 9}, { 0x0020, 9},
1437 { 0x001F, 9}, { 0x001E, 9}, { 0x001D, 9}, { 0x001C, 9}, { 0x001B, 9}, { 0x001A, 9},
1438 { 0x0022, 11}, { 0x0023, 11}, { 0x0056, 12}, { 0x0057, 12}, { 0x0007, 4}, { 0x0019, 9},
1439 { 0x0005, 11}, { 0x000F, 6}, { 0x0004, 11}, { 0x000E, 6}, { 0x000D, 6}, { 0x000C, 6},
1440 { 0x0013, 7}, { 0x0012, 7}, { 0x0011, 7}, { 0x0010, 7}, { 0x001A, 8}, { 0x0019, 8},
1441 { 0x0018, 8}, { 0x0017, 8}, { 0x0016, 8}, { 0x0015, 8}, { 0x0014, 8}, { 0x0013, 8},
1442 { 0x0018, 9}, { 0x0017, 9}, { 0x0016, 9}, { 0x0015, 9}, { 0x0014, 9}, { 0x0013, 9},
1443 { 0x0012, 9}, { 0x0011, 9}, { 0x0007, 10}, { 0x0006, 10}, { 0x0005, 10}, { 0x0004, 10},
1444 { 0x0024, 11}, { 0x0025, 11}, { 0x0026, 11}, { 0x0027, 11}, { 0x0058, 12}, { 0x0059, 12},
1445 { 0x005A, 12}, { 0x005B, 12}, { 0x005C, 12}, { 0x005D, 12}, { 0x005E, 12}, { 0x005F, 12},
1449 { 0x0000, 2}, { 0x0003, 3}, { 0x000D, 4}, { 0x0005, 4}, { 0x001C, 5}, { 0x0016, 5},
1450 { 0x003F, 6}, { 0x003A, 6}, { 0x002E, 6}, { 0x0022, 6}, { 0x007B, 7}, { 0x0067, 7},
1451 { 0x005F, 7}, { 0x0047, 7}, { 0x0026, 7}, { 0x00EF, 8}, { 0x00CD, 8}, { 0x00C1, 8},
1452 { 0x00A9, 8}, { 0x004F, 8}, { 0x01F2, 9}, { 0x01DD, 9}, { 0x0199, 9}, { 0x0185, 9},
1453 { 0x015D, 9}, { 0x011B, 9}, { 0x03EF, 10}, { 0x03E1, 10}, { 0x03C8, 10}, { 0x0331, 10},
1454 { 0x0303, 10}, { 0x02F1, 10}, { 0x02A0, 10}, { 0x0233, 10}, { 0x0126, 10}, { 0x07C0, 11},
1455 { 0x076F, 11}, { 0x076C, 11}, { 0x0661, 11}, { 0x0604, 11}, { 0x0572, 11}, { 0x0551, 11},
1456 { 0x046A, 11}, { 0x0274, 11}, { 0x0F27, 12}, { 0x0F24, 12}, { 0x0EDB, 12}, { 0x0C8E, 12},
1457 { 0x0C0B, 12}, { 0x0C0A, 12}, { 0x0AE3, 12}, { 0x08D6, 12}, { 0x0490, 12}, { 0x0495, 12},
1458 { 0x1F19, 13}, { 0x1DB5, 13}, { 0x0009, 4}, { 0x0010, 5}, { 0x0029, 6}, { 0x0062, 7},
1459 { 0x00F3, 8}, { 0x00AD, 8}, { 0x01E5, 9}, { 0x0179, 9}, { 0x009C, 9}, { 0x03B1, 10},
1460 { 0x02AE, 10}, { 0x0127, 10}, { 0x076E, 11}, { 0x0570, 11}, { 0x0275, 11}, { 0x0F25, 12},
1461 { 0x0EC0, 12}, { 0x0AA0, 12}, { 0x08D7, 12}, { 0x1E4C, 13}, { 0x0008, 5}, { 0x0063, 7},
1462 { 0x00AF, 8}, { 0x017B, 9}, { 0x03B3, 10}, { 0x07DD, 11}, { 0x0640, 11}, { 0x0F8D, 12},
1463 { 0x0BC1, 12}, { 0x0491, 12}, { 0x0028, 6}, { 0x00C3, 8}, { 0x0151, 9}, { 0x02A1, 10},
1464 { 0x0573, 11}, { 0x0EC3, 12}, { 0x1F35, 13}, { 0x0065, 7}, { 0x01DA, 9}, { 0x02AF, 10},
1465 { 0x0277, 11}, { 0x08C9, 12}, { 0x1781, 13}, { 0x0025, 7}, { 0x0118, 9}, { 0x0646, 11},
1466 { 0x0AA6, 12}, { 0x1780, 13}, { 0x00C9, 8}, { 0x0321, 10}, { 0x0F9B, 12}, { 0x191E, 13},
1467 { 0x0048, 8}, { 0x07CC, 11}, { 0x0AA1, 12}, { 0x0180, 9}, { 0x0465, 11}, { 0x1905, 13},
1468 { 0x03E2, 10}, { 0x0EC1, 12}, { 0x3C9B, 14}, { 0x02F4, 10}, { 0x08C8, 12}, { 0x07C1, 11},
1469 { 0x0928, 13}, { 0x05E1, 11}, { 0x320D, 14}, { 0x0EC2, 12}, { 0x6418, 15}, { 0x1F34, 13},
1470 { 0x0078, 7}, { 0x0155, 9}, { 0x0552, 11}, { 0x191F, 13}, { 0x00FA, 8}, { 0x07DC, 11},
1471 { 0x1907, 13}, { 0x00AC, 8}, { 0x0249, 11}, { 0x13B1, 14}, { 0x01F6, 9}, { 0x0AE2, 12},
1472 { 0x01DC, 9}, { 0x04ED, 12}, { 0x0184, 9}, { 0x1904, 13}, { 0x0156, 9}, { 0x09D9, 13},
1473 { 0x03E7, 10}, { 0x0929, 13}, { 0x03B2, 10}, { 0x3B68, 14}, { 0x02F5, 10}, { 0x13B0, 14},
1474 { 0x0322, 10}, { 0x3B69, 14}, { 0x0234, 10}, { 0x7935, 15}, { 0x07C7, 11}, { 0xC833, 16},
1475 { 0x0660, 11}, { 0x7934, 15}, { 0x024B, 11}, { 0xC832, 16}, { 0x0AA7, 12}, { 0x1F18, 13},
1479 { 0x0002, 2}, { 0x0000, 3}, { 0x001E, 5}, { 0x0004, 5}, { 0x0012, 6}, { 0x0070, 7},
1480 { 0x001A, 7}, { 0x005F, 8}, { 0x0047, 8}, { 0x01D3, 9}, { 0x00B5, 9}, { 0x0057, 9},
1481 { 0x03B5, 10}, { 0x016D, 10}, { 0x0162, 10}, { 0x07CE, 11}, { 0x0719, 11}, { 0x0691, 11},
1482 { 0x02C6, 11}, { 0x0156, 11}, { 0x0F92, 12}, { 0x0D2E, 12}, { 0x0D20, 12}, { 0x059E, 12},
1483 { 0x0468, 12}, { 0x02A6, 12}, { 0x1DA2, 13}, { 0x1C60, 13}, { 0x1A43, 13}, { 0x0B1D, 13},
1484 { 0x08C0, 13}, { 0x055D, 13}, { 0x0003, 3}, { 0x000A, 5}, { 0x0077, 7}, { 0x00E5, 8},
1485 { 0x01D9, 9}, { 0x03E5, 10}, { 0x0166, 10}, { 0x0694, 11}, { 0x0152, 11}, { 0x059F, 12},
1486 { 0x1F3C, 13}, { 0x1A4B, 13}, { 0x055E, 13}, { 0x000C, 4}, { 0x007D, 7}, { 0x0044, 8},
1487 { 0x03E0, 10}, { 0x0769, 11}, { 0x0E31, 12}, { 0x1F26, 13}, { 0x055C, 13}, { 0x001B, 5},
1488 { 0x00E2, 8}, { 0x03A5, 10}, { 0x02C9, 11}, { 0x1F23, 13}, { 0x3B47, 14}, { 0x0007, 5},
1489 { 0x01D8, 9}, { 0x02D8, 11}, { 0x1F27, 13}, { 0x3494, 14}, { 0x0035, 6}, { 0x03E1, 10},
1490 { 0x059C, 12}, { 0x38C3, 14}, { 0x000C, 6}, { 0x0165, 10}, { 0x1D23, 13}, { 0x1638, 14},
1491 { 0x0068, 7}, { 0x0693, 11}, { 0x3A45, 14}, { 0x0020, 7}, { 0x0F90, 12}, { 0x7CF6, 15},
1492 { 0x00E8, 8}, { 0x058F, 12}, { 0x2CEF, 15}, { 0x0045, 8}, { 0x0B3A, 13}, { 0x01F1, 9},
1493 { 0x3B46, 14}, { 0x01A7, 9}, { 0x1676, 14}, { 0x0056, 9}, { 0x692A, 15}, { 0x038D, 10},
1494 { 0xE309, 16}, { 0x00AA, 10}, { 0x1C611, 17}, { 0x02DF, 11}, { 0xB3B9, 17}, { 0x02C8, 11},
1495 { 0x38C20, 18}, { 0x01B0, 11}, { 0x16390, 18}, { 0x0F9F, 12}, { 0x16771, 18}, { 0x0ED0, 12},
1496 { 0x71843, 19}, { 0x0D2A, 12}, { 0xF9E8C, 20}, { 0x0461, 12}, { 0xF9E8E, 20}, { 0x0B67, 13},
1497 { 0x055F, 13}, { 0x003F, 6}, { 0x006D, 9}, { 0x0E90, 12}, { 0x054E, 13}, { 0x0013, 6},
1498 { 0x0119, 10}, { 0x0B66, 13}, { 0x000B, 6}, { 0x0235, 11}, { 0x7CF5, 15}, { 0x0075, 7},
1499 { 0x0D24, 12}, { 0xF9E9, 16}, { 0x002E, 7}, { 0x1F22, 13}, { 0x0021, 7}, { 0x054F, 13},
1500 { 0x0014, 7}, { 0x3A44, 14}, { 0x00E4, 8}, { 0x7CF7, 15}, { 0x005E, 8}, { 0x7185, 15},
1501 { 0x0037, 8}, { 0x2C73, 15}, { 0x01DB, 9}, { 0x59DD, 16}, { 0x01C7, 9}, { 0x692B, 15},
1502 { 0x01A6, 9}, { 0x58E5, 16}, { 0x00B4, 9}, { 0x1F3D0, 17}, { 0x00B0, 9}, { 0xB1C9, 17},
1503 { 0x03E6, 10}, { 0x16770, 18}, { 0x016E, 10}, { 0x3E7A2, 18}, { 0x011B, 10}, { 0xF9E8D, 20},
1504 { 0x00D9, 10}, { 0xF9E8F, 20}, { 0x00A8, 10}, { 0x2C723, 19}, { 0x0749, 11}, { 0xE3084, 20},
1505 { 0x0696, 11}, { 0x58E45, 20}, { 0x02DE, 11}, { 0xB1C88, 21}, { 0x0231, 11}, { 0x1C610A, 21},
1506 { 0x01B1, 11}, { 0x71842D, 23}, { 0x0D2B, 12}, { 0x38C217, 22}, { 0x0D2F, 12}, { 0x163913, 22},
1507 { 0x05B2, 12}, { 0x163912, 22}, { 0x0469, 12}, { 0x71842C, 23}, { 0x1A42, 13}, { 0x08C1, 13},
1512 static const uint16_t vlc_offs[] = {
1513 0, 520, 552, 616, 1128, 1160, 1224, 1740, 1772, 1836, 1900, 2436,
1514 2986, 3050, 3610, 4154, 4218, 4746, 5326, 5390, 5902, 6554, 7658, 8342,
1515 9304, 9988, 10630, 11234, 12174, 13006, 13560, 14232, 14786, 15432, 16350, 17522,
1516 20372, 21818, 22330, 22394, 23166, 23678, 23742, 24820, 25332, 25396, 26460, 26980,
1517 27048, 27592, 27600, 27608, 27616, 27624, 28224, 28258, 28290, 28802, 28834, 28866,
1518 29378, 29412, 29444, 29960, 29994, 30026, 30538, 30572, 30604, 31120, 31154, 31186,
1519 31714, 31746, 31778, 32306, 32340, 32372
1523 * Init VC-1 specific tables and VC1Context members
1524 * @param v The VC1Context to initialize
1527 int ff_vc1_init_common(VC1Context *v)
1529 static int done = 0;
1531 static VLC_TYPE vlc_table[32372][2];
1533 v->hrd_rate = v->hrd_buffer = NULL;
1537 INIT_VLC_STATIC(&ff_vc1_bfraction_vlc, VC1_BFRACTION_VLC_BITS, 23,
1538 ff_vc1_bfraction_bits, 1, 1,
1539 ff_vc1_bfraction_codes, 1, 1, 1 << VC1_BFRACTION_VLC_BITS);
1540 INIT_VLC_STATIC(&ff_vc1_norm2_vlc, VC1_NORM2_VLC_BITS, 4,
1541 ff_vc1_norm2_bits, 1, 1,
1542 ff_vc1_norm2_codes, 1, 1, 1 << VC1_NORM2_VLC_BITS);
1543 INIT_VLC_STATIC(&ff_vc1_norm6_vlc, VC1_NORM6_VLC_BITS, 64,
1544 ff_vc1_norm6_bits, 1, 1,
1545 ff_vc1_norm6_codes, 2, 2, 556);
1546 INIT_VLC_STATIC(&ff_vc1_imode_vlc, VC1_IMODE_VLC_BITS, 7,
1547 ff_vc1_imode_bits, 1, 1,
1548 ff_vc1_imode_codes, 1, 1, 1 << VC1_IMODE_VLC_BITS);
1549 for (i = 0; i < 3; i++) {
1550 ff_vc1_ttmb_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 0]];
1551 ff_vc1_ttmb_vlc[i].table_allocated = vlc_offs[i * 3 + 1] - vlc_offs[i * 3 + 0];
1552 init_vlc(&ff_vc1_ttmb_vlc[i], VC1_TTMB_VLC_BITS, 16,
1553 ff_vc1_ttmb_bits[i], 1, 1,
1554 ff_vc1_ttmb_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
1555 ff_vc1_ttblk_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 1]];
1556 ff_vc1_ttblk_vlc[i].table_allocated = vlc_offs[i * 3 + 2] - vlc_offs[i * 3 + 1];
1557 init_vlc(&ff_vc1_ttblk_vlc[i], VC1_TTBLK_VLC_BITS, 8,
1558 ff_vc1_ttblk_bits[i], 1, 1,
1559 ff_vc1_ttblk_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1560 ff_vc1_subblkpat_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 2]];
1561 ff_vc1_subblkpat_vlc[i].table_allocated = vlc_offs[i * 3 + 3] - vlc_offs[i * 3 + 2];
1562 init_vlc(&ff_vc1_subblkpat_vlc[i], VC1_SUBBLKPAT_VLC_BITS, 15,
1563 ff_vc1_subblkpat_bits[i], 1, 1,
1564 ff_vc1_subblkpat_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1566 for (i = 0; i < 4; i++) {
1567 ff_vc1_4mv_block_pattern_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 9]];
1568 ff_vc1_4mv_block_pattern_vlc[i].table_allocated = vlc_offs[i * 3 + 10] - vlc_offs[i * 3 + 9];
1569 init_vlc(&ff_vc1_4mv_block_pattern_vlc[i], VC1_4MV_BLOCK_PATTERN_VLC_BITS, 16,
1570 ff_vc1_4mv_block_pattern_bits[i], 1, 1,
1571 ff_vc1_4mv_block_pattern_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1572 ff_vc1_cbpcy_p_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 10]];
1573 ff_vc1_cbpcy_p_vlc[i].table_allocated = vlc_offs[i * 3 + 11] - vlc_offs[i * 3 + 10];
1574 init_vlc(&ff_vc1_cbpcy_p_vlc[i], VC1_CBPCY_P_VLC_BITS, 64,
1575 ff_vc1_cbpcy_p_bits[i], 1, 1,
1576 ff_vc1_cbpcy_p_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
1577 ff_vc1_mv_diff_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 11]];
1578 ff_vc1_mv_diff_vlc[i].table_allocated = vlc_offs[i * 3 + 12] - vlc_offs[i * 3 + 11];
1579 init_vlc(&ff_vc1_mv_diff_vlc[i], VC1_MV_DIFF_VLC_BITS, 73,
1580 ff_vc1_mv_diff_bits[i], 1, 1,
1581 ff_vc1_mv_diff_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
1583 for (i = 0; i < 8; i++) {
1584 ff_vc1_ac_coeff_table[i].table = &vlc_table[vlc_offs[i * 2 + 21]];
1585 ff_vc1_ac_coeff_table[i].table_allocated = vlc_offs[i * 2 + 22] - vlc_offs[i * 2 + 21];
1586 init_vlc(&ff_vc1_ac_coeff_table[i], AC_VLC_BITS, ff_vc1_ac_sizes[i],
1587 &vc1_ac_tables[i][0][1], 8, 4,
1588 &vc1_ac_tables[i][0][0], 8, 4, INIT_VLC_USE_NEW_STATIC);
1589 /* initialize interlaced MVDATA tables (2-Ref) */
1590 ff_vc1_2ref_mvdata_vlc[i].table = &vlc_table[vlc_offs[i * 2 + 22]];
1591 ff_vc1_2ref_mvdata_vlc[i].table_allocated = vlc_offs[i * 2 + 23] - vlc_offs[i * 2 + 22];
1592 init_vlc(&ff_vc1_2ref_mvdata_vlc[i], VC1_2REF_MVDATA_VLC_BITS, 126,
1593 ff_vc1_2ref_mvdata_bits[i], 1, 1,
1594 ff_vc1_2ref_mvdata_codes[i], 4, 4, INIT_VLC_USE_NEW_STATIC);
1596 for (i = 0; i < 4; i++) {
1597 /* initialize 4MV MBMODE VLC tables for interlaced frame P picture */
1598 ff_vc1_intfr_4mv_mbmode_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 37]];
1599 ff_vc1_intfr_4mv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 38] - vlc_offs[i * 3 + 37];
1600 init_vlc(&ff_vc1_intfr_4mv_mbmode_vlc[i], VC1_INTFR_4MV_MBMODE_VLC_BITS, 15,
1601 ff_vc1_intfr_4mv_mbmode_bits[i], 1, 1,
1602 ff_vc1_intfr_4mv_mbmode_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
1603 /* initialize NON-4MV MBMODE VLC tables for the same */
1604 ff_vc1_intfr_non4mv_mbmode_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 38]];
1605 ff_vc1_intfr_non4mv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 39] - vlc_offs[i * 3 + 38];
1606 init_vlc(&ff_vc1_intfr_non4mv_mbmode_vlc[i], VC1_INTFR_NON4MV_MBMODE_VLC_BITS, 9,
1607 ff_vc1_intfr_non4mv_mbmode_bits[i], 1, 1,
1608 ff_vc1_intfr_non4mv_mbmode_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1609 /* initialize interlaced MVDATA tables (1-Ref) */
1610 ff_vc1_1ref_mvdata_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 39]];
1611 ff_vc1_1ref_mvdata_vlc[i].table_allocated = vlc_offs[i * 3 + 40] - vlc_offs[i * 3 + 39];
1612 init_vlc(&ff_vc1_1ref_mvdata_vlc[i], VC1_1REF_MVDATA_VLC_BITS, 72,
1613 ff_vc1_1ref_mvdata_bits[i], 1, 1,
1614 ff_vc1_1ref_mvdata_codes[i], 4, 4, INIT_VLC_USE_NEW_STATIC);
1616 for (i = 0; i < 4; i++) {
1617 /* Initialize 2MV Block pattern VLC tables */
1618 ff_vc1_2mv_block_pattern_vlc[i].table = &vlc_table[vlc_offs[i + 49]];
1619 ff_vc1_2mv_block_pattern_vlc[i].table_allocated = vlc_offs[i + 50] - vlc_offs[i + 49];
1620 init_vlc(&ff_vc1_2mv_block_pattern_vlc[i], VC1_2MV_BLOCK_PATTERN_VLC_BITS, 4,
1621 ff_vc1_2mv_block_pattern_bits[i], 1, 1,
1622 ff_vc1_2mv_block_pattern_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1624 for (i = 0; i < 8; i++) {
1625 /* Initialize interlaced CBPCY VLC tables (Table 124 - Table 131) */
1626 ff_vc1_icbpcy_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 53]];
1627 ff_vc1_icbpcy_vlc[i].table_allocated = vlc_offs[i * 3 + 54] - vlc_offs[i * 3 + 53];
1628 init_vlc(&ff_vc1_icbpcy_vlc[i], VC1_ICBPCY_VLC_BITS, 63,
1629 ff_vc1_icbpcy_p_bits[i], 1, 1,
1630 ff_vc1_icbpcy_p_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
1631 /* Initialize interlaced field picture MBMODE VLC tables */
1632 ff_vc1_if_mmv_mbmode_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 54]];
1633 ff_vc1_if_mmv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 55] - vlc_offs[i * 3 + 54];
1634 init_vlc(&ff_vc1_if_mmv_mbmode_vlc[i], VC1_IF_MMV_MBMODE_VLC_BITS, 8,
1635 ff_vc1_if_mmv_mbmode_bits[i], 1, 1,
1636 ff_vc1_if_mmv_mbmode_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1637 ff_vc1_if_1mv_mbmode_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 55]];
1638 ff_vc1_if_1mv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 56] - vlc_offs[i * 3 + 55];
1639 init_vlc(&ff_vc1_if_1mv_mbmode_vlc[i], VC1_IF_1MV_MBMODE_VLC_BITS, 6,
1640 ff_vc1_if_1mv_mbmode_bits[i], 1, 1,
1641 ff_vc1_if_1mv_mbmode_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1646 /* Other defaults */
1648 v->mvrange = 0; /* 7.1.1.18, p80 */