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
29 #include "libavutil/attributes.h"
32 #include "mpegvideo.h"
37 #include "simple_idct.h"
39 /***********************************************************************/
41 * @name VC-1 Bitplane decoding
46 /** Decode rows by checking if they are skipped
47 * @param plane Buffer to store decoded bits
48 * @param[in] width Width of this buffer
49 * @param[in] height Height of this buffer
50 * @param[in] stride of this buffer
52 static void decode_rowskip(uint8_t* plane, int width, int height, int stride,
57 for (y = 0; y < height; y++) {
58 if (!get_bits1(gb)) //rowskip
59 memset(plane, 0, width);
61 for (x = 0; x < width; x++)
62 plane[x] = get_bits1(gb);
67 /** Decode columns by checking if they are skipped
68 * @param plane Buffer to store decoded bits
69 * @param[in] width Width of this buffer
70 * @param[in] height Height of this buffer
71 * @param[in] stride of this buffer
72 * @todo FIXME: Optimize
74 static void decode_colskip(uint8_t* plane, int width, int height, int stride,
79 for (x = 0; x < width; x++) {
80 if (!get_bits1(gb)) //colskip
81 for (y = 0; y < height; y++)
84 for (y = 0; y < height; y++)
85 plane[y*stride] = get_bits1(gb);
90 /** Decode a bitplane's bits
91 * @param data bitplane where to store the decode bits
92 * @param[out] raw_flag pointer to the flag indicating that this bitplane is not coded explicitly
93 * @param v VC-1 context for bit reading and logging
95 * @todo FIXME: Optimize
97 static int bitplane_decoding(uint8_t* data, int *raw_flag, VC1Context *v)
99 GetBitContext *gb = &v->s.gb;
101 int imode, x, y, code, offset;
102 uint8_t invert, *planep = data;
103 int width, height, stride;
105 width = v->s.mb_width;
106 height = v->s.mb_height >> v->field_mode;
107 stride = v->s.mb_stride;
108 invert = get_bits1(gb);
109 imode = get_vlc2(gb, ff_vc1_imode_vlc.table, VC1_IMODE_VLC_BITS, 1);
114 //Data is actually read in the MB layer (same for all tests == "raw")
115 *raw_flag = 1; //invert ignored
119 if ((height * width) & 1) {
120 *planep++ = get_bits1(gb);
122 if (offset == width) {
124 planep += stride - width;
129 // decode bitplane as one long line
130 for (; y < height * width; y += 2) {
131 code = get_vlc2(gb, ff_vc1_norm2_vlc.table, VC1_NORM2_VLC_BITS, 1);
132 *planep++ = code & 1;
134 if (offset == width) {
136 planep += stride - width;
138 *planep++ = code >> 1;
140 if (offset == width) {
142 planep += stride - width;
148 if (!(height % 3) && (width % 3)) { // use 2x3 decoding
149 for (y = 0; y < height; y += 3) {
150 for (x = width & 1; x < width; x += 2) {
151 code = get_vlc2(gb, ff_vc1_norm6_vlc.table, VC1_NORM6_VLC_BITS, 2);
153 av_log(v->s.avctx, AV_LOG_DEBUG, "invalid NORM-6 VLC\n");
156 planep[x + 0] = (code >> 0) & 1;
157 planep[x + 1] = (code >> 1) & 1;
158 planep[x + 0 + stride] = (code >> 2) & 1;
159 planep[x + 1 + stride] = (code >> 3) & 1;
160 planep[x + 0 + stride * 2] = (code >> 4) & 1;
161 planep[x + 1 + stride * 2] = (code >> 5) & 1;
163 planep += stride * 3;
166 decode_colskip(data, 1, height, stride, &v->s.gb);
168 planep += (height & 1) * stride;
169 for (y = height & 1; y < height; y += 2) {
170 for (x = width % 3; x < width; x += 3) {
171 code = get_vlc2(gb, ff_vc1_norm6_vlc.table, VC1_NORM6_VLC_BITS, 2);
173 av_log(v->s.avctx, AV_LOG_DEBUG, "invalid NORM-6 VLC\n");
176 planep[x + 0] = (code >> 0) & 1;
177 planep[x + 1] = (code >> 1) & 1;
178 planep[x + 2] = (code >> 2) & 1;
179 planep[x + 0 + stride] = (code >> 3) & 1;
180 planep[x + 1 + stride] = (code >> 4) & 1;
181 planep[x + 2 + stride] = (code >> 5) & 1;
183 planep += stride * 2;
187 decode_colskip(data, x, height, stride, &v->s.gb);
189 decode_rowskip(data + x, width - x, 1, stride, &v->s.gb);
193 decode_rowskip(data, width, height, stride, &v->s.gb);
196 decode_colskip(data, width, height, stride, &v->s.gb);
202 /* Applying diff operator */
203 if (imode == IMODE_DIFF2 || imode == IMODE_DIFF6) {
206 for (x = 1; x < width; x++)
207 planep[x] ^= planep[x-1];
208 for (y = 1; y < height; y++) {
210 planep[0] ^= planep[-stride];
211 for (x = 1; x < width; x++) {
212 if (planep[x-1] != planep[x-stride]) planep[x] ^= invert;
213 else planep[x] ^= planep[x-1];
218 for (x = 0; x < stride * height; x++)
219 planep[x] = !planep[x]; //FIXME stride
221 return (imode << 1) + invert;
224 /** @} */ //Bitplane group
226 /***********************************************************************/
227 /** VOP Dquant decoding
228 * @param v VC-1 Context
230 static int vop_dquant_decoding(VC1Context *v)
232 GetBitContext *gb = &v->s.gb;
236 if (v->dquant != 2) {
237 v->dquantfrm = get_bits1(gb);
241 v->dqprofile = get_bits(gb, 2);
242 switch (v->dqprofile) {
243 case DQPROFILE_SINGLE_EDGE:
244 case DQPROFILE_DOUBLE_EDGES:
245 v->dqsbedge = get_bits(gb, 2);
247 case DQPROFILE_ALL_MBS:
248 v->dqbilevel = get_bits1(gb);
258 pqdiff = get_bits(gb, 3);
260 v->altpq = get_bits(gb, 5);
262 v->altpq = v->pq + pqdiff + 1;
267 static int decode_sequence_header_adv(VC1Context *v, GetBitContext *gb);
270 * Decode Simple/Main Profiles sequence header
271 * @see Figure 7-8, p16-17
272 * @param avctx Codec context
273 * @param gb GetBit context initialized from Codec context extra_data
276 int ff_vc1_decode_sequence_header(AVCodecContext *avctx, VC1Context *v, GetBitContext *gb)
278 av_log(avctx, AV_LOG_DEBUG, "Header: %0X\n", show_bits_long(gb, 32));
279 v->profile = get_bits(gb, 2);
280 if (v->profile == PROFILE_COMPLEX) {
281 av_log(avctx, AV_LOG_WARNING, "WMV3 Complex Profile is not fully supported\n");
284 if (v->profile == PROFILE_ADVANCED) {
285 v->zz_8x4 = ff_vc1_adv_progressive_8x4_zz;
286 v->zz_4x8 = ff_vc1_adv_progressive_4x8_zz;
287 return decode_sequence_header_adv(v, gb);
290 v->zz_8x4 = ff_wmv2_scantableA;
291 v->zz_4x8 = ff_wmv2_scantableB;
292 v->res_y411 = get_bits1(gb);
293 v->res_sprite = get_bits1(gb);
295 av_log(avctx, AV_LOG_ERROR,
296 "Old interlaced mode is not supported\n");
302 v->frmrtq_postproc = get_bits(gb, 3); //common
303 // (bitrate-32kbps)/64kbps
304 v->bitrtq_postproc = get_bits(gb, 5); //common
305 v->s.loop_filter = get_bits1(gb); //common
306 if (v->s.loop_filter == 1 && v->profile == PROFILE_SIMPLE) {
307 av_log(avctx, AV_LOG_ERROR,
308 "LOOPFILTER shall not be enabled in Simple Profile\n");
310 if (v->s.avctx->skip_loop_filter >= AVDISCARD_ALL)
311 v->s.loop_filter = 0;
313 v->res_x8 = get_bits1(gb); //reserved
314 v->multires = get_bits1(gb);
315 v->res_fasttx = get_bits1(gb);
316 if (!v->res_fasttx) {
317 v->vc1dsp.vc1_inv_trans_8x8 = ff_simple_idct_int16_8bit;
318 v->vc1dsp.vc1_inv_trans_8x4 = ff_simple_idct84_add;
319 v->vc1dsp.vc1_inv_trans_4x8 = ff_simple_idct48_add;
320 v->vc1dsp.vc1_inv_trans_4x4 = ff_simple_idct44_add;
321 v->vc1dsp.vc1_inv_trans_8x8_dc = ff_simple_idct_add_int16_8bit;
322 v->vc1dsp.vc1_inv_trans_8x4_dc = ff_simple_idct84_add;
323 v->vc1dsp.vc1_inv_trans_4x8_dc = ff_simple_idct48_add;
324 v->vc1dsp.vc1_inv_trans_4x4_dc = ff_simple_idct44_add;
327 v->fastuvmc = get_bits1(gb); //common
328 if (!v->profile && !v->fastuvmc) {
329 av_log(avctx, AV_LOG_ERROR,
330 "FASTUVMC unavailable in Simple Profile\n");
333 v->extended_mv = get_bits1(gb); //common
334 if (!v->profile && v->extended_mv) {
335 av_log(avctx, AV_LOG_ERROR,
336 "Extended MVs unavailable in Simple Profile\n");
339 v->dquant = get_bits(gb, 2); //common
340 v->vstransform = get_bits1(gb); //common
342 v->res_transtab = get_bits1(gb);
343 if (v->res_transtab) {
344 av_log(avctx, AV_LOG_ERROR,
345 "1 for reserved RES_TRANSTAB is forbidden\n");
349 v->overlap = get_bits1(gb); //common
351 v->resync_marker = get_bits1(gb);
352 v->rangered = get_bits1(gb);
353 if (v->rangered && v->profile == PROFILE_SIMPLE) {
354 av_log(avctx, AV_LOG_INFO,
355 "RANGERED should be set to 0 in Simple Profile\n");
358 v->s.max_b_frames = avctx->max_b_frames = get_bits(gb, 3); //common
359 v->quantizer_mode = get_bits(gb, 2); //common
361 v->finterpflag = get_bits1(gb); //common
364 int w = get_bits(gb, 11);
365 int h = get_bits(gb, 11);
366 int ret = ff_set_dimensions(v->s.avctx, w, h);
368 av_log(avctx, AV_LOG_ERROR, "Failed to set dimensions %d %d\n", w, h);
371 skip_bits(gb, 5); //frame rate
372 v->res_x8 = get_bits1(gb);
373 if (get_bits1(gb)) { // something to do with DC VLC selection
374 av_log(avctx, AV_LOG_ERROR, "Unsupported sprite feature\n");
377 skip_bits(gb, 3); //slice code
380 v->res_rtm_flag = get_bits1(gb); //reserved
382 //TODO: figure out what they mean (always 0x402F)
385 av_log(avctx, AV_LOG_DEBUG,
386 "Profile %i:\nfrmrtq_postproc=%i, bitrtq_postproc=%i\n"
387 "LoopFilter=%i, MultiRes=%i, FastUVMC=%i, Extended MV=%i\n"
388 "Rangered=%i, VSTransform=%i, Overlap=%i, SyncMarker=%i\n"
389 "DQuant=%i, Quantizer mode=%i, Max B-frames=%i\n",
390 v->profile, v->frmrtq_postproc, v->bitrtq_postproc,
391 v->s.loop_filter, v->multires, v->fastuvmc, v->extended_mv,
392 v->rangered, v->vstransform, v->overlap, v->resync_marker,
393 v->dquant, v->quantizer_mode, avctx->max_b_frames);
397 static int decode_sequence_header_adv(VC1Context *v, GetBitContext *gb)
400 v->level = get_bits(gb, 3);
402 av_log(v->s.avctx, AV_LOG_ERROR, "Reserved LEVEL %i\n",v->level);
404 v->chromaformat = get_bits(gb, 2);
405 if (v->chromaformat != 1) {
406 av_log(v->s.avctx, AV_LOG_ERROR,
407 "Only 4:2:0 chroma format supported\n");
412 v->frmrtq_postproc = get_bits(gb, 3); //common
413 // (bitrate-32kbps)/64kbps
414 v->bitrtq_postproc = get_bits(gb, 5); //common
415 v->postprocflag = get_bits1(gb); //common
417 v->max_coded_width = (get_bits(gb, 12) + 1) << 1;
418 v->max_coded_height = (get_bits(gb, 12) + 1) << 1;
419 v->broadcast = get_bits1(gb);
420 v->interlace = get_bits1(gb);
421 v->tfcntrflag = get_bits1(gb);
422 v->finterpflag = get_bits1(gb);
423 skip_bits1(gb); // reserved
425 av_log(v->s.avctx, AV_LOG_DEBUG,
426 "Advanced Profile level %i:\nfrmrtq_postproc=%i, bitrtq_postproc=%i\n"
427 "LoopFilter=%i, ChromaFormat=%i, Pulldown=%i, Interlace: %i\n"
428 "TFCTRflag=%i, FINTERPflag=%i\n",
429 v->level, v->frmrtq_postproc, v->bitrtq_postproc,
430 v->s.loop_filter, v->chromaformat, v->broadcast, v->interlace,
431 v->tfcntrflag, v->finterpflag);
433 v->psf = get_bits1(gb);
434 if (v->psf) { //PsF, 6.1.13
435 av_log(v->s.avctx, AV_LOG_ERROR, "Progressive Segmented Frame mode: not supported (yet)\n");
438 v->s.max_b_frames = v->s.avctx->max_b_frames = 7;
439 if (get_bits1(gb)) { //Display Info - decoding is not affected by it
441 av_log(v->s.avctx, AV_LOG_DEBUG, "Display extended info:\n");
442 w = get_bits(gb, 14) + 1;
443 h = get_bits(gb, 14) + 1;
444 av_log(v->s.avctx, AV_LOG_DEBUG, "Display dimensions: %ix%i\n", w, h);
446 ar = get_bits(gb, 4);
448 v->s.avctx->sample_aspect_ratio = ff_vc1_pixel_aspect[ar];
449 } else if (ar == 15) {
450 w = get_bits(gb, 8) + 1;
451 h = get_bits(gb, 8) + 1;
452 v->s.avctx->sample_aspect_ratio = (AVRational){w, h};
454 if (v->s.avctx->width > v->max_coded_width ||
455 v->s.avctx->height > v->max_coded_height) {
456 avpriv_request_sample(v->s.avctx, "Huge resolution");
458 av_reduce(&v->s.avctx->sample_aspect_ratio.num,
459 &v->s.avctx->sample_aspect_ratio.den,
460 v->s.avctx->height * w,
461 v->s.avctx->width * h,
464 ff_set_sar(v->s.avctx, v->s.avctx->sample_aspect_ratio);
465 av_log(v->s.avctx, AV_LOG_DEBUG, "Aspect: %i:%i\n",
466 v->s.avctx->sample_aspect_ratio.num,
467 v->s.avctx->sample_aspect_ratio.den);
469 if (get_bits1(gb)) { //framerate stuff
471 v->s.avctx->framerate.den = 32;
472 v->s.avctx->framerate.num = get_bits(gb, 16) + 1;
475 nr = get_bits(gb, 8);
476 dr = get_bits(gb, 4);
477 if (nr > 0 && nr < 8 && dr > 0 && dr < 3) {
478 v->s.avctx->framerate.den = ff_vc1_fps_dr[dr - 1];
479 v->s.avctx->framerate.num = ff_vc1_fps_nr[nr - 1] * 1000;
482 if (v->broadcast) { // Pulldown may be present
483 v->s.avctx->ticks_per_frame = 2;
488 v->color_prim = get_bits(gb, 8);
489 v->transfer_char = get_bits(gb, 8);
490 v->matrix_coef = get_bits(gb, 8);
494 v->hrd_param_flag = get_bits1(gb);
495 if (v->hrd_param_flag) {
497 v->hrd_num_leaky_buckets = get_bits(gb, 5);
498 skip_bits(gb, 4); //bitrate exponent
499 skip_bits(gb, 4); //buffer size exponent
500 for (i = 0; i < v->hrd_num_leaky_buckets; i++) {
501 skip_bits(gb, 16); //hrd_rate[n]
502 skip_bits(gb, 16); //hrd_buffer[n]
508 int ff_vc1_decode_entry_point(AVCodecContext *avctx, VC1Context *v, GetBitContext *gb)
514 av_log(avctx, AV_LOG_DEBUG, "Entry point: %08X\n", show_bits_long(gb, 32));
515 v->broken_link = get_bits1(gb);
516 v->closed_entry = get_bits1(gb);
517 v->panscanflag = get_bits1(gb);
518 v->refdist_flag = get_bits1(gb);
519 v->s.loop_filter = get_bits1(gb);
520 if (v->s.avctx->skip_loop_filter >= AVDISCARD_ALL)
521 v->s.loop_filter = 0;
522 v->fastuvmc = get_bits1(gb);
523 v->extended_mv = get_bits1(gb);
524 v->dquant = get_bits(gb, 2);
525 v->vstransform = get_bits1(gb);
526 v->overlap = get_bits1(gb);
527 v->quantizer_mode = get_bits(gb, 2);
529 if (v->hrd_param_flag) {
530 for (i = 0; i < v->hrd_num_leaky_buckets; i++) {
531 skip_bits(gb, 8); //hrd_full[n]
536 w = (get_bits(gb, 12)+1)<<1;
537 h = (get_bits(gb, 12)+1)<<1;
539 w = v->max_coded_width;
540 h = v->max_coded_height;
542 if ((ret = ff_set_dimensions(avctx, w, h)) < 0) {
543 av_log(avctx, AV_LOG_ERROR, "Failed to set dimensions %d %d\n", w, h);
548 v->extended_dmv = get_bits1(gb);
549 if ((v->range_mapy_flag = get_bits1(gb))) {
550 av_log(avctx, AV_LOG_ERROR, "Luma scaling is not supported, expect wrong picture\n");
551 v->range_mapy = get_bits(gb, 3);
553 if ((v->range_mapuv_flag = get_bits1(gb))) {
554 av_log(avctx, AV_LOG_ERROR, "Chroma scaling is not supported, expect wrong picture\n");
555 v->range_mapuv = get_bits(gb, 3);
558 av_log(avctx, AV_LOG_DEBUG, "Entry point info:\n"
559 "BrokenLink=%i, ClosedEntry=%i, PanscanFlag=%i\n"
560 "RefDist=%i, Postproc=%i, FastUVMC=%i, ExtMV=%i\n"
561 "DQuant=%i, VSTransform=%i, Overlap=%i, Qmode=%i\n",
562 v->broken_link, v->closed_entry, v->panscanflag, v->refdist_flag, v->s.loop_filter,
563 v->fastuvmc, v->extended_mv, v->dquant, v->vstransform, v->overlap, v->quantizer_mode);
568 /* fill lookup tables for intensity compensation */
569 #define INIT_LUT(lumscale, lumshift, luty, lutuv, chain) do { \
570 int scale, shift, i; \
573 shift = (255 - lumshift * 2) * 64; \
577 scale = lumscale + 32; \
579 shift = (lumshift - 64) * 64; \
581 shift = lumshift << 6; \
583 for (i = 0; i < 256; i++) { \
584 int iy = chain ? luty[i] : i; \
585 int iu = chain ? lutuv[i] : i; \
586 luty[i] = av_clip_uint8((scale * iy + shift + 32) >> 6); \
587 lutuv[i] = av_clip_uint8((scale * (iu - 128) + 128*64 + 32) >> 6);\
591 static void rotate_luts(VC1Context *v)
593 #define ROTATE(DEF, L, N, C, A) do { \
594 if (v->s.pict_type == AV_PICTURE_TYPE_BI || v->s.pict_type == AV_PICTURE_TYPE_B) { \
598 memcpy(&tmp, L , sizeof(tmp)); \
599 memcpy(L , N , sizeof(tmp)); \
600 memcpy(N , &tmp, sizeof(tmp)); \
605 ROTATE(int tmp, &v->last_use_ic, &v->next_use_ic, v->curr_use_ic, &v->aux_use_ic);
606 ROTATE(uint8_t tmp[2][256], v->last_luty, v->next_luty, v->curr_luty, v->aux_luty);
607 ROTATE(uint8_t tmp[2][256], v->last_lutuv, v->next_lutuv, v->curr_lutuv, v->aux_lutuv);
609 INIT_LUT(32, 0, v->curr_luty[0], v->curr_lutuv[0], 0);
610 INIT_LUT(32, 0, v->curr_luty[1], v->curr_lutuv[1], 0);
614 static int read_bfraction(VC1Context *v, GetBitContext* gb) {
615 int bfraction_lut_index = get_vlc2(gb, ff_vc1_bfraction_vlc.table, VC1_BFRACTION_VLC_BITS, 1);
617 if (bfraction_lut_index == 21 || bfraction_lut_index < 0) {
618 av_log(v->s.avctx, AV_LOG_ERROR, "bfraction invalid\n");
619 return AVERROR_INVALIDDATA;
621 v->bfraction_lut_index = bfraction_lut_index;
622 v->bfraction = ff_vc1_bfraction_lut[v->bfraction_lut_index];
626 int ff_vc1_parse_frame_header(VC1Context *v, GetBitContext* gb)
628 int pqindex, lowquant, status;
631 v->fcm = PROGRESSIVE;
633 v->interpfrm = get_bits1(gb);
634 if (!v->s.avctx->codec)
636 if (v->s.avctx->codec_id == AV_CODEC_ID_MSS2)
639 v->multires = get_bits(gb, 2) == 1;
641 skip_bits(gb, 2); //framecnt unused
644 v->rangeredfrm = get_bits1(gb);
646 v->s.pict_type = AV_PICTURE_TYPE_P;
648 if (v->s.avctx->max_b_frames && !get_bits1(gb)) {
649 v->s.pict_type = AV_PICTURE_TYPE_B;
651 v->s.pict_type = AV_PICTURE_TYPE_I;
655 if (v->s.pict_type == AV_PICTURE_TYPE_B) {
656 if (read_bfraction(v, gb) < 0)
657 return AVERROR_INVALIDDATA;
658 if (v->bfraction == 0) {
659 v->s.pict_type = AV_PICTURE_TYPE_BI;
662 if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI)
663 skip_bits(gb, 7); // skip buffer fullness
669 if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI)
671 if (v->s.pict_type == AV_PICTURE_TYPE_P)
674 /* Quantizer stuff */
675 pqindex = get_bits(gb, 5);
678 if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
679 v->pq = ff_vc1_pquant_table[0][pqindex];
681 v->pq = ff_vc1_pquant_table[1][pqindex];
682 v->pqindex = pqindex;
684 v->halfpq = get_bits1(gb);
687 switch (v->quantizer_mode) {
688 case QUANT_FRAME_IMPLICIT:
689 v->pquantizer = pqindex < 9;
691 case QUANT_NON_UNIFORM:
694 case QUANT_FRAME_EXPLICIT:
695 v->pquantizer = get_bits1(gb);
702 if (v->extended_mv == 1)
703 v->mvrange = get_unary(gb, 0, 3);
704 v->k_x = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13
705 v->k_y = v->mvrange + 8; //k_y can be 8 9 10 11
706 v->range_x = 1 << (v->k_x - 1);
707 v->range_y = 1 << (v->k_y - 1);
708 if (v->multires && v->s.pict_type != AV_PICTURE_TYPE_B)
709 v->respic = get_bits(gb, 2);
711 if (v->res_x8 && (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI)) {
712 v->x8_type = get_bits1(gb);
715 ff_dlog(v->s.avctx, "%c Frame: QP=[%i]%i (+%i/2) %i\n",
716 (v->s.pict_type == AV_PICTURE_TYPE_P) ? 'P' : ((v->s.pict_type == AV_PICTURE_TYPE_I) ? 'I' : 'B'),
717 pqindex, v->pq, v->halfpq, v->rangeredfrm);
719 if (v->first_pic_header_flag)
722 switch (v->s.pict_type) {
723 case AV_PICTURE_TYPE_P:
724 v->tt_index = (v->pq > 4) + (v->pq > 12);
726 lowquant = (v->pq > 12) ? 0 : 1;
727 v->mv_mode = ff_vc1_mv_pmode_table[lowquant][get_unary(gb, 1, 4)];
728 if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {
729 v->mv_mode2 = ff_vc1_mv_pmode_table2[lowquant][get_unary(gb, 1, 3)];
730 v->lumscale = get_bits(gb, 6);
731 v->lumshift = get_bits(gb, 6);
733 /* fill lookup tables for intensity compensation */
734 INIT_LUT(v->lumscale, v->lumshift, v->last_luty[0], v->last_lutuv[0], 1);
735 INIT_LUT(v->lumscale, v->lumshift, v->last_luty[1], v->last_lutuv[1], 1);
737 v->qs_last = v->s.quarter_sample;
738 if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {
739 v->s.quarter_sample = (v->mv_mode2 != MV_PMODE_1MV_HPEL &&
740 v->mv_mode2 != MV_PMODE_1MV_HPEL_BILIN);
741 v->s.mspel = (v->mv_mode2 != MV_PMODE_1MV_HPEL_BILIN);
743 v->s.quarter_sample = (v->mv_mode != MV_PMODE_1MV_HPEL &&
744 v->mv_mode != MV_PMODE_1MV_HPEL_BILIN);
745 v->s.mspel = (v->mv_mode != MV_PMODE_1MV_HPEL_BILIN);
748 if ((v->mv_mode == MV_PMODE_INTENSITY_COMP &&
749 v->mv_mode2 == MV_PMODE_MIXED_MV) ||
750 v->mv_mode == MV_PMODE_MIXED_MV) {
751 status = bitplane_decoding(v->mv_type_mb_plane, &v->mv_type_is_raw, v);
754 av_log(v->s.avctx, AV_LOG_DEBUG, "MB MV Type plane encoding: "
755 "Imode: %i, Invert: %i\n", status>>1, status&1);
757 v->mv_type_is_raw = 0;
758 memset(v->mv_type_mb_plane, 0, v->s.mb_stride * v->s.mb_height);
760 status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
763 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
764 "Imode: %i, Invert: %i\n", status>>1, status&1);
766 /* Hopefully this is correct for P-frames */
767 v->s.mv_table_index = get_bits(gb, 2); //but using ff_vc1_ tables
768 v->cbptab = get_bits(gb, 2);
769 v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[v->cbptab];
772 av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
773 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)];
781 v->ttfrm = 0; //FIXME Is that so ?
787 case AV_PICTURE_TYPE_B:
788 v->tt_index = (v->pq > 4) + (v->pq > 12);
790 v->mv_mode = get_bits1(gb) ? MV_PMODE_1MV : MV_PMODE_1MV_HPEL_BILIN;
791 v->qs_last = v->s.quarter_sample;
792 v->s.quarter_sample = (v->mv_mode == MV_PMODE_1MV);
793 v->s.mspel = v->s.quarter_sample;
795 status = bitplane_decoding(v->direct_mb_plane, &v->dmb_is_raw, v);
798 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Direct Type plane encoding: "
799 "Imode: %i, Invert: %i\n", status>>1, status&1);
800 status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
803 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
804 "Imode: %i, Invert: %i\n", status>>1, status&1);
806 v->s.mv_table_index = get_bits(gb, 2);
807 v->cbptab = get_bits(gb, 2);
808 v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[v->cbptab];
811 av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
812 vop_dquant_decoding(v);
815 if (v->vstransform) {
816 v->ttmbf = get_bits1(gb);
818 v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
830 v->c_ac_table_index = decode012(gb);
831 if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI) {
832 v->y_ac_table_index = decode012(gb);
835 v->s.dc_table_index = get_bits1(gb);
838 if (v->s.pict_type == AV_PICTURE_TYPE_BI) {
839 v->s.pict_type = AV_PICTURE_TYPE_B;
845 int ff_vc1_parse_frame_header_adv(VC1Context *v, GetBitContext* gb)
847 int pqindex, lowquant;
852 v->p_frame_skipped = 0;
853 if (v->second_field) {
854 if (v->fcm != ILACE_FIELD || v->field_mode!=1)
857 v->s.pict_type = (v->fptype & 1) ? AV_PICTURE_TYPE_BI : AV_PICTURE_TYPE_B;
859 v->s.pict_type = (v->fptype & 1) ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_I;
860 v->s.current_picture_ptr->f->pict_type = v->s.pict_type;
861 if (!v->pic_header_flag)
862 goto parse_common_info;
869 if (fcm == ILACE_FIELD)
875 if (!v->first_pic_header_flag && v->field_mode != field_mode)
876 return AVERROR_INVALIDDATA;
877 v->field_mode = field_mode;
880 av_assert0( v->s.mb_height == v->s.height + 15 >> 4
881 || v->s.mb_height == FFALIGN(v->s.height + 15 >> 4, 2));
883 v->s.mb_height = FFALIGN(v->s.height + 15 >> 4, 2);
884 v->fptype = get_bits(gb, 3);
885 if (v->fptype & 4) // B-picture
886 v->s.pict_type = (v->fptype & 2) ? AV_PICTURE_TYPE_BI : AV_PICTURE_TYPE_B;
888 v->s.pict_type = (v->fptype & 2) ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_I;
890 v->s.mb_height = v->s.height + 15 >> 4;
891 switch (get_unary(gb, 0, 4)) {
893 v->s.pict_type = AV_PICTURE_TYPE_P;
896 v->s.pict_type = AV_PICTURE_TYPE_B;
899 v->s.pict_type = AV_PICTURE_TYPE_I;
902 v->s.pict_type = AV_PICTURE_TYPE_BI;
905 v->s.pict_type = AV_PICTURE_TYPE_P; // skipped pic
906 v->p_frame_skipped = 1;
913 if (!v->interlace || v->psf) {
914 v->rptfrm = get_bits(gb, 2);
916 v->tff = get_bits1(gb);
917 v->rff = get_bits1(gb);
922 if (v->panscanflag) {
923 avpriv_report_missing_feature(v->s.avctx, "Pan-scan");
926 if (v->p_frame_skipped) {
929 v->rnd = get_bits1(gb);
931 v->uvsamp = get_bits1(gb);
932 if(!ff_vc1_bfraction_vlc.table)
933 return 0; //parsing only, vlc tables havnt been allocated
935 if (!v->refdist_flag)
937 else if ((v->s.pict_type != AV_PICTURE_TYPE_B) && (v->s.pict_type != AV_PICTURE_TYPE_BI)) {
938 v->refdist = get_bits(gb, 2);
940 v->refdist += get_unary(gb, 0, 14);
942 return AVERROR_INVALIDDATA;
944 if ((v->s.pict_type == AV_PICTURE_TYPE_B) || (v->s.pict_type == AV_PICTURE_TYPE_BI)) {
945 if (read_bfraction(v, gb) < 0)
946 return AVERROR_INVALIDDATA;
947 v->frfd = (v->bfraction * v->refdist) >> 8;
948 v->brfd = v->refdist - v->frfd - 1;
952 goto parse_common_info;
954 if (v->fcm == PROGRESSIVE) {
956 v->interpfrm = get_bits1(gb);
957 if (v->s.pict_type == AV_PICTURE_TYPE_B) {
958 if (read_bfraction(v, gb) < 0)
959 return AVERROR_INVALIDDATA;
960 if (v->bfraction == 0) {
961 v->s.pict_type = AV_PICTURE_TYPE_BI; /* XXX: should not happen here */
968 v->cur_field_type = !(v->tff ^ v->second_field);
969 pqindex = get_bits(gb, 5);
972 if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
973 v->pq = ff_vc1_pquant_table[0][pqindex];
975 v->pq = ff_vc1_pquant_table[1][pqindex];
976 v->pqindex = pqindex;
978 v->halfpq = get_bits1(gb);
981 switch (v->quantizer_mode) {
982 case QUANT_FRAME_IMPLICIT:
983 v->pquantizer = pqindex < 9;
985 case QUANT_NON_UNIFORM:
988 case QUANT_FRAME_EXPLICIT:
989 v->pquantizer = get_bits1(gb);
997 v->postproc = get_bits(gb, 2);
1002 if (v->first_pic_header_flag)
1005 switch (v->s.pict_type) {
1006 case AV_PICTURE_TYPE_I:
1007 case AV_PICTURE_TYPE_BI:
1008 if (v->fcm == ILACE_FRAME) { //interlace frame picture
1009 status = bitplane_decoding(v->fieldtx_plane, &v->fieldtx_is_raw, v);
1012 av_log(v->s.avctx, AV_LOG_DEBUG, "FIELDTX plane encoding: "
1013 "Imode: %i, Invert: %i\n", status>>1, status&1);
1015 v->fieldtx_is_raw = 0;
1016 status = bitplane_decoding(v->acpred_plane, &v->acpred_is_raw, v);
1019 av_log(v->s.avctx, AV_LOG_DEBUG, "ACPRED plane encoding: "
1020 "Imode: %i, Invert: %i\n", status>>1, status&1);
1021 v->condover = CONDOVER_NONE;
1022 if (v->overlap && v->pq <= 8) {
1023 v->condover = decode012(gb);
1024 if (v->condover == CONDOVER_SELECT) {
1025 status = bitplane_decoding(v->over_flags_plane, &v->overflg_is_raw, v);
1028 av_log(v->s.avctx, AV_LOG_DEBUG, "CONDOVER plane encoding: "
1029 "Imode: %i, Invert: %i\n", status>>1, status&1);
1033 case AV_PICTURE_TYPE_P:
1034 if (v->field_mode) {
1035 v->numref = get_bits1(gb);
1037 v->reffield = get_bits1(gb);
1038 v->ref_field_type[0] = v->reffield ^ !v->cur_field_type;
1042 v->mvrange = get_unary(gb, 0, 3);
1046 if (v->extended_dmv)
1047 v->dmvrange = get_unary(gb, 0, 3);
1050 if (v->fcm == ILACE_FRAME) { // interlaced frame picture
1051 v->fourmvswitch = get_bits1(gb);
1052 v->intcomp = get_bits1(gb);
1054 v->lumscale = get_bits(gb, 6);
1055 v->lumshift = get_bits(gb, 6);
1056 INIT_LUT(v->lumscale, v->lumshift, v->last_luty[0], v->last_lutuv[0], 1);
1057 INIT_LUT(v->lumscale, v->lumshift, v->last_luty[1], v->last_lutuv[1], 1);
1060 status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
1063 av_log(v->s.avctx, AV_LOG_DEBUG, "SKIPMB plane encoding: "
1064 "Imode: %i, Invert: %i\n", status>>1, status&1);
1065 v->mbmodetab = get_bits(gb, 2);
1066 if (v->fourmvswitch)
1067 v->mbmode_vlc = &ff_vc1_intfr_4mv_mbmode_vlc[v->mbmodetab];
1069 v->mbmode_vlc = &ff_vc1_intfr_non4mv_mbmode_vlc[v->mbmodetab];
1070 v->imvtab = get_bits(gb, 2);
1071 v->imv_vlc = &ff_vc1_1ref_mvdata_vlc[v->imvtab];
1072 // interlaced p-picture cbpcy range is [1, 63]
1073 v->icbptab = get_bits(gb, 3);
1074 v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[v->icbptab];
1075 v->twomvbptab = get_bits(gb, 2);
1076 v->twomvbp_vlc = &ff_vc1_2mv_block_pattern_vlc[v->twomvbptab];
1077 if (v->fourmvswitch) {
1078 v->fourmvbptab = get_bits(gb, 2);
1079 v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[v->fourmvbptab];
1083 v->k_x = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13
1084 v->k_y = v->mvrange + 8; //k_y can be 8 9 10 11
1085 v->range_x = 1 << (v->k_x - 1);
1086 v->range_y = 1 << (v->k_y - 1);
1088 v->tt_index = (v->pq > 4) + (v->pq > 12);
1089 if (v->fcm != ILACE_FRAME) {
1091 mvmode = get_unary(gb, 1, 4);
1092 lowquant = (v->pq > 12) ? 0 : 1;
1093 v->mv_mode = ff_vc1_mv_pmode_table[lowquant][mvmode];
1094 if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {
1096 mvmode2 = get_unary(gb, 1, 3);
1097 v->mv_mode2 = ff_vc1_mv_pmode_table2[lowquant][mvmode2];
1098 if (v->field_mode) {
1099 v->intcompfield = decode210(gb) ^ 3;
1101 v->intcompfield = 3;
1103 v->lumscale2 = v->lumscale = 32;
1104 v->lumshift2 = v->lumshift = 0;
1105 if (v->intcompfield & 1) {
1106 v->lumscale = get_bits(gb, 6);
1107 v->lumshift = get_bits(gb, 6);
1109 if ((v->intcompfield & 2) && v->field_mode) {
1110 v->lumscale2 = get_bits(gb, 6);
1111 v->lumshift2 = get_bits(gb, 6);
1112 } else if(!v->field_mode) {
1113 v->lumscale2 = v->lumscale;
1114 v->lumshift2 = v->lumshift;
1116 if (v->field_mode && v->second_field) {
1117 if (v->cur_field_type) {
1118 INIT_LUT(v->lumscale , v->lumshift , v->curr_luty[v->cur_field_type^1], v->curr_lutuv[v->cur_field_type^1], 0);
1119 INIT_LUT(v->lumscale2, v->lumshift2, v->last_luty[v->cur_field_type ], v->last_lutuv[v->cur_field_type ], 1);
1121 INIT_LUT(v->lumscale2, v->lumshift2, v->curr_luty[v->cur_field_type^1], v->curr_lutuv[v->cur_field_type^1], 0);
1122 INIT_LUT(v->lumscale , v->lumshift , v->last_luty[v->cur_field_type ], v->last_lutuv[v->cur_field_type ], 1);
1124 v->next_use_ic = *v->curr_use_ic = 1;
1126 INIT_LUT(v->lumscale , v->lumshift , v->last_luty[0], v->last_lutuv[0], 1);
1127 INIT_LUT(v->lumscale2, v->lumshift2, v->last_luty[1], v->last_lutuv[1], 1);
1131 v->qs_last = v->s.quarter_sample;
1132 if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {
1133 v->s.quarter_sample = (v->mv_mode2 != MV_PMODE_1MV_HPEL &&
1134 v->mv_mode2 != MV_PMODE_1MV_HPEL_BILIN);
1135 v->s.mspel = (v->mv_mode2 != MV_PMODE_1MV_HPEL_BILIN);
1137 v->s.quarter_sample = (v->mv_mode != MV_PMODE_1MV_HPEL &&
1138 v->mv_mode != MV_PMODE_1MV_HPEL_BILIN);
1139 v->s.mspel = (v->mv_mode != MV_PMODE_1MV_HPEL_BILIN);
1142 if (v->fcm == PROGRESSIVE) { // progressive
1143 if ((v->mv_mode == MV_PMODE_INTENSITY_COMP &&
1144 v->mv_mode2 == MV_PMODE_MIXED_MV)
1145 || v->mv_mode == MV_PMODE_MIXED_MV) {
1146 status = bitplane_decoding(v->mv_type_mb_plane, &v->mv_type_is_raw, v);
1149 av_log(v->s.avctx, AV_LOG_DEBUG, "MB MV Type plane encoding: "
1150 "Imode: %i, Invert: %i\n", status>>1, status&1);
1152 v->mv_type_is_raw = 0;
1153 memset(v->mv_type_mb_plane, 0, v->s.mb_stride * v->s.mb_height);
1155 status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
1158 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
1159 "Imode: %i, Invert: %i\n", status>>1, status&1);
1161 /* Hopefully this is correct for P-frames */
1162 v->s.mv_table_index = get_bits(gb, 2); //but using ff_vc1_ tables
1163 v->cbptab = get_bits(gb, 2);
1164 v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[v->cbptab];
1165 } else if (v->fcm == ILACE_FRAME) { // frame interlaced
1166 v->qs_last = v->s.quarter_sample;
1167 v->s.quarter_sample = 1;
1169 } else { // field interlaced
1170 v->mbmodetab = get_bits(gb, 3);
1171 v->imvtab = get_bits(gb, 2 + v->numref);
1173 v->imv_vlc = &ff_vc1_1ref_mvdata_vlc[v->imvtab];
1175 v->imv_vlc = &ff_vc1_2ref_mvdata_vlc[v->imvtab];
1176 v->icbptab = get_bits(gb, 3);
1177 v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[v->icbptab];
1178 if ((v->mv_mode == MV_PMODE_INTENSITY_COMP &&
1179 v->mv_mode2 == MV_PMODE_MIXED_MV) || v->mv_mode == MV_PMODE_MIXED_MV) {
1180 v->fourmvbptab = get_bits(gb, 2);
1181 v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[v->fourmvbptab];
1182 v->mbmode_vlc = &ff_vc1_if_mmv_mbmode_vlc[v->mbmodetab];
1184 v->mbmode_vlc = &ff_vc1_if_1mv_mbmode_vlc[v->mbmodetab];
1188 av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
1189 vop_dquant_decoding(v);
1192 if (v->vstransform) {
1193 v->ttmbf = get_bits1(gb);
1195 v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
1197 v->ttfrm = 0; //FIXME Is that so ?
1203 case AV_PICTURE_TYPE_B:
1204 if (v->fcm == ILACE_FRAME) {
1205 if (read_bfraction(v, gb) < 0)
1206 return AVERROR_INVALIDDATA;
1207 if (v->bfraction == 0) {
1212 v->mvrange = get_unary(gb, 0, 3);
1215 v->k_x = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13
1216 v->k_y = v->mvrange + 8; //k_y can be 8 9 10 11
1217 v->range_x = 1 << (v->k_x - 1);
1218 v->range_y = 1 << (v->k_y - 1);
1220 v->tt_index = (v->pq > 4) + (v->pq > 12);
1222 if (v->field_mode) {
1224 av_log(v->s.avctx, AV_LOG_DEBUG, "B Fields\n");
1225 if (v->extended_dmv)
1226 v->dmvrange = get_unary(gb, 0, 3);
1227 mvmode = get_unary(gb, 1, 3);
1228 lowquant = (v->pq > 12) ? 0 : 1;
1229 v->mv_mode = ff_vc1_mv_pmode_table2[lowquant][mvmode];
1230 v->qs_last = v->s.quarter_sample;
1231 v->s.quarter_sample = (v->mv_mode == MV_PMODE_1MV || v->mv_mode == MV_PMODE_MIXED_MV);
1232 v->s.mspel = (v->mv_mode != MV_PMODE_1MV_HPEL_BILIN);
1233 status = bitplane_decoding(v->forward_mb_plane, &v->fmb_is_raw, v);
1236 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Forward Type plane encoding: "
1237 "Imode: %i, Invert: %i\n", status>>1, status&1);
1238 v->mbmodetab = get_bits(gb, 3);
1239 if (v->mv_mode == MV_PMODE_MIXED_MV)
1240 v->mbmode_vlc = &ff_vc1_if_mmv_mbmode_vlc[v->mbmodetab];
1242 v->mbmode_vlc = &ff_vc1_if_1mv_mbmode_vlc[v->mbmodetab];
1243 v->imvtab = get_bits(gb, 3);
1244 v->imv_vlc = &ff_vc1_2ref_mvdata_vlc[v->imvtab];
1245 v->icbptab = get_bits(gb, 3);
1246 v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[v->icbptab];
1247 if (v->mv_mode == MV_PMODE_MIXED_MV) {
1248 v->fourmvbptab = get_bits(gb, 2);
1249 v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[v->fourmvbptab];
1251 v->numref = 1; // interlaced field B pictures are always 2-ref
1252 } else if (v->fcm == ILACE_FRAME) {
1253 if (v->extended_dmv)
1254 v->dmvrange = get_unary(gb, 0, 3);
1255 if (get_bits1(gb)) /* intcomp - present but shall always be 0 */
1256 av_log(v->s.avctx, AV_LOG_WARNING, "Intensity compensation set for B picture\n");
1258 v->mv_mode = MV_PMODE_1MV;
1259 v->fourmvswitch = 0;
1260 v->qs_last = v->s.quarter_sample;
1261 v->s.quarter_sample = 1;
1263 status = bitplane_decoding(v->direct_mb_plane, &v->dmb_is_raw, v);
1266 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Direct Type plane encoding: "
1267 "Imode: %i, Invert: %i\n", status>>1, status&1);
1268 status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
1271 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
1272 "Imode: %i, Invert: %i\n", status>>1, status&1);
1273 v->mbmodetab = get_bits(gb, 2);
1274 v->mbmode_vlc = &ff_vc1_intfr_non4mv_mbmode_vlc[v->mbmodetab];
1275 v->imvtab = get_bits(gb, 2);
1276 v->imv_vlc = &ff_vc1_1ref_mvdata_vlc[v->imvtab];
1277 // interlaced p/b-picture cbpcy range is [1, 63]
1278 v->icbptab = get_bits(gb, 3);
1279 v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[v->icbptab];
1280 v->twomvbptab = get_bits(gb, 2);
1281 v->twomvbp_vlc = &ff_vc1_2mv_block_pattern_vlc[v->twomvbptab];
1282 v->fourmvbptab = get_bits(gb, 2);
1283 v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[v->fourmvbptab];
1285 v->mv_mode = get_bits1(gb) ? MV_PMODE_1MV : MV_PMODE_1MV_HPEL_BILIN;
1286 v->qs_last = v->s.quarter_sample;
1287 v->s.quarter_sample = (v->mv_mode == MV_PMODE_1MV);
1288 v->s.mspel = v->s.quarter_sample;
1289 status = bitplane_decoding(v->direct_mb_plane, &v->dmb_is_raw, v);
1292 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Direct Type plane encoding: "
1293 "Imode: %i, Invert: %i\n", status>>1, status&1);
1294 status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
1297 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
1298 "Imode: %i, Invert: %i\n", status>>1, status&1);
1299 v->s.mv_table_index = get_bits(gb, 2);
1300 v->cbptab = get_bits(gb, 2);
1301 v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[v->cbptab];
1305 av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
1306 vop_dquant_decoding(v);
1309 if (v->vstransform) {
1310 v->ttmbf = get_bits1(gb);
1312 v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
1324 v->c_ac_table_index = decode012(gb);
1325 if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI) {
1326 v->y_ac_table_index = decode012(gb);
1328 else if (v->fcm != PROGRESSIVE && !v->s.quarter_sample) {
1334 v->s.dc_table_index = get_bits1(gb);
1335 if ((v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI)
1337 av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
1338 vop_dquant_decoding(v);
1341 v->bi_type = (v->s.pict_type == AV_PICTURE_TYPE_BI);
1343 v->s.pict_type = AV_PICTURE_TYPE_B;
1348 static const uint32_t vc1_ac_tables[AC_MODES][186][2] = {
1350 { 0x0001, 2}, { 0x0005, 3}, { 0x000D, 4}, { 0x0012, 5}, { 0x000E, 6}, { 0x0015, 7},
1351 { 0x0013, 8}, { 0x003F, 8}, { 0x004B, 9}, { 0x011F, 9}, { 0x00B8, 10}, { 0x03E3, 10},
1352 { 0x0172, 11}, { 0x024D, 12}, { 0x03DA, 12}, { 0x02DD, 13}, { 0x1F55, 13}, { 0x05B9, 14},
1353 { 0x3EAE, 14}, { 0x0000, 4}, { 0x0010, 5}, { 0x0008, 7}, { 0x0020, 8}, { 0x0029, 9},
1354 { 0x01F4, 9}, { 0x0233, 10}, { 0x01E0, 11}, { 0x012A, 12}, { 0x03DD, 12}, { 0x050A, 13},
1355 { 0x1F29, 13}, { 0x0A42, 14}, { 0x1272, 15}, { 0x1737, 15}, { 0x0003, 5}, { 0x0011, 7},
1356 { 0x00C4, 8}, { 0x004B, 10}, { 0x00B4, 11}, { 0x07D4, 11}, { 0x0345, 12}, { 0x02D7, 13},
1357 { 0x07BF, 13}, { 0x0938, 14}, { 0x0BBB, 14}, { 0x095E, 15}, { 0x0013, 5}, { 0x0078, 7},
1358 { 0x0069, 9}, { 0x0232, 10}, { 0x0461, 11}, { 0x03EC, 12}, { 0x0520, 13}, { 0x1F2A, 13},
1359 { 0x3E50, 14}, { 0x3E51, 14}, { 0x1486, 15}, { 0x000C, 6}, { 0x0024, 9}, { 0x0094, 11},
1360 { 0x08C0, 12}, { 0x0F09, 14}, { 0x1EF0, 15}, { 0x003D, 6}, { 0x0053, 9}, { 0x01A0, 11},
1361 { 0x02D6, 13}, { 0x0F08, 14}, { 0x0013, 7}, { 0x007C, 9}, { 0x07C1, 11}, { 0x04AC, 14},
1362 { 0x001B, 7}, { 0x00A0, 10}, { 0x0344, 12}, { 0x0F79, 14}, { 0x0079, 7}, { 0x03E1, 10},
1363 { 0x02D4, 13}, { 0x2306, 14}, { 0x0021, 8}, { 0x023C, 10}, { 0x0FAE, 12}, { 0x23DE, 14},
1364 { 0x0035, 8}, { 0x0175, 11}, { 0x07B3, 13}, { 0x00C5, 8}, { 0x0174, 11}, { 0x0785, 13},
1365 { 0x0048, 9}, { 0x01A3, 11}, { 0x049E, 13}, { 0x002C, 9}, { 0x00FA, 10}, { 0x07D6, 11},
1366 { 0x0092, 10}, { 0x05CC, 13}, { 0x1EF1, 15}, { 0x00A3, 10}, { 0x03ED, 12}, { 0x093E, 14},
1367 { 0x01E2, 11}, { 0x1273, 15}, { 0x07C4, 11}, { 0x1487, 15}, { 0x0291, 12}, { 0x0293, 12},
1368 { 0x0F8A, 12}, { 0x0509, 13}, { 0x0508, 13}, { 0x078D, 13}, { 0x07BE, 13}, { 0x078C, 13},
1369 { 0x04AE, 14}, { 0x0BBA, 14}, { 0x2307, 14}, { 0x0B9A, 14}, { 0x1736, 15}, { 0x000E, 4},
1370 { 0x0045, 7}, { 0x01F3, 9}, { 0x047A, 11}, { 0x05DC, 13}, { 0x23DF, 14}, { 0x0019, 5},
1371 { 0x0028, 9}, { 0x0176, 11}, { 0x049D, 13}, { 0x23DD, 14}, { 0x0030, 6}, { 0x00A2, 10},
1372 { 0x02EF, 12}, { 0x05B8, 14}, { 0x003F, 6}, { 0x00A5, 10}, { 0x03DB, 12}, { 0x093F, 14},
1373 { 0x0044, 7}, { 0x07CB, 11}, { 0x095F, 15}, { 0x0063, 7}, { 0x03C3, 12}, { 0x0015, 8},
1374 { 0x08F6, 12}, { 0x0017, 8}, { 0x0498, 13}, { 0x002C, 8}, { 0x07B2, 13}, { 0x002F, 8},
1375 { 0x1F54, 13}, { 0x008D, 8}, { 0x07BD, 13}, { 0x008E, 8}, { 0x1182, 13}, { 0x00FB, 8},
1376 { 0x050B, 13}, { 0x002D, 8}, { 0x07C0, 11}, { 0x0079, 9}, { 0x1F5F, 13}, { 0x007A, 9},
1377 { 0x1F56, 13}, { 0x0231, 10}, { 0x03E4, 10}, { 0x01A1, 11}, { 0x0143, 11}, { 0x01F7, 11},
1378 { 0x016F, 12}, { 0x0292, 12}, { 0x02E7, 12}, { 0x016C, 12}, { 0x016D, 12}, { 0x03DC, 12},
1379 { 0x0F8B, 12}, { 0x0499, 13}, { 0x03D8, 12}, { 0x078E, 13}, { 0x02D5, 13}, { 0x1F5E, 13},
1380 { 0x1F2B, 13}, { 0x078F, 13}, { 0x04AD, 14}, { 0x3EAF, 14}, { 0x23DC, 14}, { 0x004A, 9}
1383 { 0x0000, 3}, { 0x0003, 4}, { 0x000B, 5}, { 0x0014, 6}, { 0x003F, 6}, { 0x005D, 7},
1384 { 0x00A2, 8}, { 0x00AC, 9}, { 0x016E, 9}, { 0x020A, 10}, { 0x02E2, 10}, { 0x0432, 11},
1385 { 0x05C9, 11}, { 0x0827, 12}, { 0x0B54, 12}, { 0x04E6, 13}, { 0x105F, 13}, { 0x172A, 13},
1386 { 0x20B2, 14}, { 0x2D4E, 14}, { 0x39F0, 14}, { 0x4175, 15}, { 0x5A9E, 15}, { 0x0004, 4},
1387 { 0x001E, 5}, { 0x0042, 7}, { 0x00B6, 8}, { 0x0173, 9}, { 0x0395, 10}, { 0x072E, 11},
1388 { 0x0B94, 12}, { 0x16A4, 13}, { 0x20B3, 14}, { 0x2E45, 14}, { 0x0005, 5}, { 0x0040, 7},
1389 { 0x0049, 9}, { 0x028F, 10}, { 0x05CB, 11}, { 0x048A, 13}, { 0x09DD, 14}, { 0x73E2, 15},
1390 { 0x0018, 5}, { 0x0025, 8}, { 0x008A, 10}, { 0x051B, 11}, { 0x0E5F, 12}, { 0x09C9, 14},
1391 { 0x139C, 15}, { 0x0029, 6}, { 0x004F, 9}, { 0x0412, 11}, { 0x048D, 13}, { 0x2E41, 14},
1392 { 0x0038, 6}, { 0x010E, 9}, { 0x05A8, 11}, { 0x105C, 13}, { 0x39F2, 14}, { 0x0058, 7},
1393 { 0x021F, 10}, { 0x0E7E, 12}, { 0x39FF, 14}, { 0x0023, 8}, { 0x02E3, 10}, { 0x04E5, 13},
1394 { 0x2E40, 14}, { 0x00A1, 8}, { 0x05BE, 11}, { 0x09C8, 14}, { 0x0083, 8}, { 0x013A, 11},
1395 { 0x1721, 13}, { 0x0044, 9}, { 0x0276, 12}, { 0x39F6, 14}, { 0x008B, 10}, { 0x04EF, 13},
1396 { 0x5A9B, 15}, { 0x0208, 10}, { 0x1CFE, 13}, { 0x0399, 10}, { 0x1CB4, 13}, { 0x039E, 10},
1397 { 0x39F3, 14}, { 0x05AB, 11}, { 0x73E3, 15}, { 0x0737, 11}, { 0x5A9F, 15}, { 0x082D, 12},
1398 { 0x0E69, 12}, { 0x0E68, 12}, { 0x0433, 11}, { 0x0B7B, 12}, { 0x2DF8, 14}, { 0x2E56, 14},
1399 { 0x2E57, 14}, { 0x39F7, 14}, { 0x51A5, 15}, { 0x0003, 3}, { 0x002A, 6}, { 0x00E4, 8},
1400 { 0x028E, 10}, { 0x0735, 11}, { 0x1058, 13}, { 0x1CFA, 13}, { 0x2DF9, 14}, { 0x4174, 15},
1401 { 0x0009, 4}, { 0x0054, 8}, { 0x0398, 10}, { 0x048B, 13}, { 0x139D, 15}, { 0x000D, 4},
1402 { 0x00AD, 9}, { 0x0826, 12}, { 0x2D4C, 14}, { 0x0011, 5}, { 0x016B, 9}, { 0x0B7F, 12},
1403 { 0x51A4, 15}, { 0x0019, 5}, { 0x021B, 10}, { 0x16FD, 13}, { 0x001D, 5}, { 0x0394, 10},
1404 { 0x28D3, 14}, { 0x002B, 6}, { 0x05BC, 11}, { 0x5A9A, 15}, { 0x002F, 6}, { 0x0247, 12},
1405 { 0x0010, 7}, { 0x0A35, 12}, { 0x003E, 6}, { 0x0B7A, 12}, { 0x0059, 7}, { 0x105E, 13},
1406 { 0x0026, 8}, { 0x09CF, 14}, { 0x0055, 8}, { 0x1CB5, 13}, { 0x0057, 8}, { 0x0E5B, 12},
1407 { 0x00A0, 8}, { 0x1468, 13}, { 0x0170, 9}, { 0x0090, 10}, { 0x01CE, 9}, { 0x021A, 10},
1408 { 0x0218, 10}, { 0x0168, 9}, { 0x021E, 10}, { 0x0244, 12}, { 0x0736, 11}, { 0x0138, 11},
1409 { 0x0519, 11}, { 0x0E5E, 12}, { 0x072C, 11}, { 0x0B55, 12}, { 0x09DC, 14}, { 0x20BB, 14},
1410 { 0x048C, 13}, { 0x1723, 13}, { 0x2E44, 14}, { 0x16A5, 13}, { 0x0518, 11}, { 0x39FE, 14},
1414 { 0x0001, 2}, { 0x0006, 3}, { 0x000F, 4}, { 0x0016, 5}, { 0x0020, 6}, { 0x0018, 7},
1415 { 0x0008, 8}, { 0x009A, 8}, { 0x0056, 9}, { 0x013E, 9}, { 0x00F0, 10}, { 0x03A5, 10},
1416 { 0x0077, 11}, { 0x01EF, 11}, { 0x009A, 12}, { 0x005D, 13}, { 0x0001, 4}, { 0x0011, 5},
1417 { 0x0002, 7}, { 0x000B, 8}, { 0x0012, 9}, { 0x01D6, 9}, { 0x027E, 10}, { 0x0191, 11},
1418 { 0x00EA, 12}, { 0x03DC, 12}, { 0x013B, 13}, { 0x0004, 5}, { 0x0014, 7}, { 0x009E, 8},
1419 { 0x0009, 10}, { 0x01AC, 11}, { 0x01E2, 11}, { 0x03CA, 12}, { 0x005F, 13}, { 0x0017, 5},
1420 { 0x004E, 7}, { 0x005E, 9}, { 0x00F3, 10}, { 0x01AD, 11}, { 0x00EC, 12}, { 0x05F0, 13},
1421 { 0x000E, 6}, { 0x00E1, 8}, { 0x03A4, 10}, { 0x009C, 12}, { 0x013D, 13}, { 0x003B, 6},
1422 { 0x001C, 9}, { 0x0014, 11}, { 0x09BE, 12}, { 0x0006, 7}, { 0x007A, 9}, { 0x0190, 11},
1423 { 0x0137, 13}, { 0x001B, 7}, { 0x0008, 10}, { 0x075C, 11}, { 0x0071, 7}, { 0x00D7, 10},
1424 { 0x09BF, 12}, { 0x0007, 8}, { 0x00AF, 10}, { 0x04CC, 11}, { 0x0034, 8}, { 0x0265, 10},
1425 { 0x009F, 12}, { 0x00E0, 8}, { 0x0016, 11}, { 0x0327, 12}, { 0x0015, 9}, { 0x017D, 11},
1426 { 0x0EBB, 12}, { 0x0014, 9}, { 0x00F6, 10}, { 0x01E4, 11}, { 0x00CB, 10}, { 0x099D, 12},
1427 { 0x00CA, 10}, { 0x02FC, 12}, { 0x017F, 11}, { 0x04CD, 11}, { 0x02FD, 12}, { 0x04FE, 11},
1428 { 0x013A, 13}, { 0x000A, 4}, { 0x0042, 7}, { 0x01D3, 9}, { 0x04DD, 11}, { 0x0012, 5},
1429 { 0x00E8, 8}, { 0x004C, 11}, { 0x0136, 13}, { 0x0039, 6}, { 0x0264, 10}, { 0x0EBA, 12},
1430 { 0x0000, 7}, { 0x00AE, 10}, { 0x099C, 12}, { 0x001F, 7}, { 0x04DE, 11}, { 0x0043, 7},
1431 { 0x04DC, 11}, { 0x0003, 8}, { 0x03CB, 12}, { 0x0006, 8}, { 0x099E, 12}, { 0x002A, 8},
1432 { 0x05F1, 13}, { 0x000F, 8}, { 0x09FE, 12}, { 0x0033, 8}, { 0x09FF, 12}, { 0x0098, 8},
1433 { 0x099F, 12}, { 0x00EA, 8}, { 0x013C, 13}, { 0x002E, 8}, { 0x0192, 11}, { 0x0136, 9},
1434 { 0x006A, 9}, { 0x0015, 11}, { 0x03AF, 10}, { 0x01E3, 11}, { 0x0074, 11}, { 0x00EB, 12},
1435 { 0x02F9, 12}, { 0x005C, 13}, { 0x00ED, 12}, { 0x03DD, 12}, { 0x0326, 12}, { 0x005E, 13},
1439 { 0x0004, 3}, { 0x0014, 5}, { 0x0017, 7}, { 0x007F, 8}, { 0x0154, 9}, { 0x01F2, 10},
1440 { 0x00BF, 11}, { 0x0065, 12}, { 0x0AAA, 12}, { 0x0630, 13}, { 0x1597, 13}, { 0x03B7, 14},
1441 { 0x2B22, 14}, { 0x0BE6, 15}, { 0x000B, 4}, { 0x0037, 7}, { 0x0062, 9}, { 0x0007, 11},
1442 { 0x0166, 12}, { 0x00CE, 13}, { 0x1590, 13}, { 0x05F6, 14}, { 0x0BE7, 15}, { 0x0007, 5},
1443 { 0x006D, 8}, { 0x0003, 11}, { 0x031F, 12}, { 0x05F2, 14}, { 0x0002, 6}, { 0x0061, 9},
1444 { 0x0055, 12}, { 0x01DF, 14}, { 0x001A, 6}, { 0x001E, 10}, { 0x0AC9, 12}, { 0x2B23, 14},
1445 { 0x001E, 6}, { 0x001F, 10}, { 0x0AC3, 12}, { 0x2B2B, 14}, { 0x0006, 7}, { 0x0004, 11},
1446 { 0x02F8, 13}, { 0x0019, 7}, { 0x0006, 11}, { 0x063D, 13}, { 0x0057, 7}, { 0x0182, 11},
1447 { 0x2AA2, 14}, { 0x0004, 8}, { 0x0180, 11}, { 0x059C, 14}, { 0x007D, 8}, { 0x0164, 12},
1448 { 0x076D, 15}, { 0x0002, 9}, { 0x018D, 11}, { 0x1581, 13}, { 0x00AD, 8}, { 0x0060, 12},
1449 { 0x0C67, 14}, { 0x001C, 9}, { 0x00EE, 13}, { 0x0003, 9}, { 0x02CF, 13}, { 0x00D9, 9},
1450 { 0x1580, 13}, { 0x0002, 11}, { 0x0183, 11}, { 0x0057, 12}, { 0x0061, 12}, { 0x0031, 11},
1451 { 0x0066, 12}, { 0x0631, 13}, { 0x0632, 13}, { 0x00AC, 13}, { 0x031D, 12}, { 0x0076, 12},
1452 { 0x003A, 11}, { 0x0165, 12}, { 0x0C66, 14}, { 0x0003, 2}, { 0x0054, 7}, { 0x02AB, 10},
1453 { 0x0016, 13}, { 0x05F7, 14}, { 0x0005, 4}, { 0x00F8, 9}, { 0x0AA9, 12}, { 0x005F, 15},
1454 { 0x0004, 4}, { 0x001C, 10}, { 0x1550, 13}, { 0x0004, 5}, { 0x0077, 11}, { 0x076C, 15},
1455 { 0x000E, 5}, { 0x000A, 12}, { 0x000C, 5}, { 0x0562, 11}, { 0x0004, 6}, { 0x031C, 12},
1456 { 0x0006, 6}, { 0x00C8, 13}, { 0x000D, 6}, { 0x01DA, 13}, { 0x0007, 6}, { 0x00C9, 13},
1457 { 0x0001, 7}, { 0x002E, 14}, { 0x0014, 7}, { 0x1596, 13}, { 0x000A, 7}, { 0x0AC2, 12},
1458 { 0x0016, 7}, { 0x015B, 14}, { 0x0015, 7}, { 0x015A, 14}, { 0x000F, 8}, { 0x005E, 15},
1459 { 0x007E, 8}, { 0x00AB, 8}, { 0x002D, 9}, { 0x00D8, 9}, { 0x000B, 9}, { 0x0014, 10},
1460 { 0x02B3, 10}, { 0x01F3, 10}, { 0x003A, 10}, { 0x0000, 10}, { 0x0058, 10}, { 0x002E, 9},
1461 { 0x005E, 10}, { 0x0563, 11}, { 0x00EC, 12}, { 0x0054, 12}, { 0x0AC1, 12}, { 0x1556, 13},
1462 { 0x02FA, 13}, { 0x0181, 11}, { 0x1557, 13}, { 0x059D, 14}, { 0x2AA3, 14}, { 0x2B2A, 14},
1463 { 0x01DE, 14}, { 0x063C, 13}, { 0x00CF, 13}, { 0x1594, 13}, { 0x000D, 9}
1466 { 0x0002, 2}, { 0x0006, 3}, { 0x000F, 4}, { 0x000D, 5}, { 0x000C, 5}, { 0x0015, 6},
1467 { 0x0013, 6}, { 0x0012, 6}, { 0x0017, 7}, { 0x001F, 8}, { 0x001E, 8}, { 0x001D, 8},
1468 { 0x0025, 9}, { 0x0024, 9}, { 0x0023, 9}, { 0x0021, 9}, { 0x0021, 10}, { 0x0020, 10},
1469 { 0x000F, 10}, { 0x000E, 10}, { 0x0007, 11}, { 0x0006, 11}, { 0x0020, 11}, { 0x0021, 11},
1470 { 0x0050, 12}, { 0x0051, 12}, { 0x0052, 12}, { 0x000E, 4}, { 0x0014, 6}, { 0x0016, 7},
1471 { 0x001C, 8}, { 0x0020, 9}, { 0x001F, 9}, { 0x000D, 10}, { 0x0022, 11}, { 0x0053, 12},
1472 { 0x0055, 12}, { 0x000B, 5}, { 0x0015, 7}, { 0x001E, 9}, { 0x000C, 10}, { 0x0056, 12},
1473 { 0x0011, 6}, { 0x001B, 8}, { 0x001D, 9}, { 0x000B, 10}, { 0x0010, 6}, { 0x0022, 9},
1474 { 0x000A, 10}, { 0x000D, 6}, { 0x001C, 9}, { 0x0008, 10}, { 0x0012, 7}, { 0x001B, 9},
1475 { 0x0054, 12}, { 0x0014, 7}, { 0x001A, 9}, { 0x0057, 12}, { 0x0019, 8}, { 0x0009, 10},
1476 { 0x0018, 8}, { 0x0023, 11}, { 0x0017, 8}, { 0x0019, 9}, { 0x0018, 9}, { 0x0007, 10},
1477 { 0x0058, 12}, { 0x0007, 4}, { 0x000C, 6}, { 0x0016, 8}, { 0x0017, 9}, { 0x0006, 10},
1478 { 0x0005, 11}, { 0x0004, 11}, { 0x0059, 12}, { 0x000F, 6}, { 0x0016, 9}, { 0x0005, 10},
1479 { 0x000E, 6}, { 0x0004, 10}, { 0x0011, 7}, { 0x0024, 11}, { 0x0010, 7}, { 0x0025, 11},
1480 { 0x0013, 7}, { 0x005A, 12}, { 0x0015, 8}, { 0x005B, 12}, { 0x0014, 8}, { 0x0013, 8},
1481 { 0x001A, 8}, { 0x0015, 9}, { 0x0014, 9}, { 0x0013, 9}, { 0x0012, 9}, { 0x0011, 9},
1482 { 0x0026, 11}, { 0x0027, 11}, { 0x005C, 12}, { 0x005D, 12}, { 0x005E, 12}, { 0x005F, 12},
1486 { 0x0002, 2}, { 0x000F, 4}, { 0x0015, 6}, { 0x0017, 7}, { 0x001F, 8}, { 0x0025, 9},
1487 { 0x0024, 9}, { 0x0021, 10}, { 0x0020, 10}, { 0x0007, 11}, { 0x0006, 11}, { 0x0020, 11},
1488 { 0x0006, 3}, { 0x0014, 6}, { 0x001E, 8}, { 0x000F, 10}, { 0x0021, 11}, { 0x0050, 12},
1489 { 0x000E, 4}, { 0x001D, 8}, { 0x000E, 10}, { 0x0051, 12}, { 0x000D, 5}, { 0x0023, 9},
1490 { 0x000D, 10}, { 0x000C, 5}, { 0x0022, 9}, { 0x0052, 12}, { 0x000B, 5}, { 0x000C, 10},
1491 { 0x0053, 12}, { 0x0013, 6}, { 0x000B, 10}, { 0x0054, 12}, { 0x0012, 6}, { 0x000A, 10},
1492 { 0x0011, 6}, { 0x0009, 10}, { 0x0010, 6}, { 0x0008, 10}, { 0x0016, 7}, { 0x0055, 12},
1493 { 0x0015, 7}, { 0x0014, 7}, { 0x001C, 8}, { 0x001B, 8}, { 0x0021, 9}, { 0x0020, 9},
1494 { 0x001F, 9}, { 0x001E, 9}, { 0x001D, 9}, { 0x001C, 9}, { 0x001B, 9}, { 0x001A, 9},
1495 { 0x0022, 11}, { 0x0023, 11}, { 0x0056, 12}, { 0x0057, 12}, { 0x0007, 4}, { 0x0019, 9},
1496 { 0x0005, 11}, { 0x000F, 6}, { 0x0004, 11}, { 0x000E, 6}, { 0x000D, 6}, { 0x000C, 6},
1497 { 0x0013, 7}, { 0x0012, 7}, { 0x0011, 7}, { 0x0010, 7}, { 0x001A, 8}, { 0x0019, 8},
1498 { 0x0018, 8}, { 0x0017, 8}, { 0x0016, 8}, { 0x0015, 8}, { 0x0014, 8}, { 0x0013, 8},
1499 { 0x0018, 9}, { 0x0017, 9}, { 0x0016, 9}, { 0x0015, 9}, { 0x0014, 9}, { 0x0013, 9},
1500 { 0x0012, 9}, { 0x0011, 9}, { 0x0007, 10}, { 0x0006, 10}, { 0x0005, 10}, { 0x0004, 10},
1501 { 0x0024, 11}, { 0x0025, 11}, { 0x0026, 11}, { 0x0027, 11}, { 0x0058, 12}, { 0x0059, 12},
1502 { 0x005A, 12}, { 0x005B, 12}, { 0x005C, 12}, { 0x005D, 12}, { 0x005E, 12}, { 0x005F, 12},
1506 { 0x0000, 2}, { 0x0003, 3}, { 0x000D, 4}, { 0x0005, 4}, { 0x001C, 5}, { 0x0016, 5},
1507 { 0x003F, 6}, { 0x003A, 6}, { 0x002E, 6}, { 0x0022, 6}, { 0x007B, 7}, { 0x0067, 7},
1508 { 0x005F, 7}, { 0x0047, 7}, { 0x0026, 7}, { 0x00EF, 8}, { 0x00CD, 8}, { 0x00C1, 8},
1509 { 0x00A9, 8}, { 0x004F, 8}, { 0x01F2, 9}, { 0x01DD, 9}, { 0x0199, 9}, { 0x0185, 9},
1510 { 0x015D, 9}, { 0x011B, 9}, { 0x03EF, 10}, { 0x03E1, 10}, { 0x03C8, 10}, { 0x0331, 10},
1511 { 0x0303, 10}, { 0x02F1, 10}, { 0x02A0, 10}, { 0x0233, 10}, { 0x0126, 10}, { 0x07C0, 11},
1512 { 0x076F, 11}, { 0x076C, 11}, { 0x0661, 11}, { 0x0604, 11}, { 0x0572, 11}, { 0x0551, 11},
1513 { 0x046A, 11}, { 0x0274, 11}, { 0x0F27, 12}, { 0x0F24, 12}, { 0x0EDB, 12}, { 0x0C8E, 12},
1514 { 0x0C0B, 12}, { 0x0C0A, 12}, { 0x0AE3, 12}, { 0x08D6, 12}, { 0x0490, 12}, { 0x0495, 12},
1515 { 0x1F19, 13}, { 0x1DB5, 13}, { 0x0009, 4}, { 0x0010, 5}, { 0x0029, 6}, { 0x0062, 7},
1516 { 0x00F3, 8}, { 0x00AD, 8}, { 0x01E5, 9}, { 0x0179, 9}, { 0x009C, 9}, { 0x03B1, 10},
1517 { 0x02AE, 10}, { 0x0127, 10}, { 0x076E, 11}, { 0x0570, 11}, { 0x0275, 11}, { 0x0F25, 12},
1518 { 0x0EC0, 12}, { 0x0AA0, 12}, { 0x08D7, 12}, { 0x1E4C, 13}, { 0x0008, 5}, { 0x0063, 7},
1519 { 0x00AF, 8}, { 0x017B, 9}, { 0x03B3, 10}, { 0x07DD, 11}, { 0x0640, 11}, { 0x0F8D, 12},
1520 { 0x0BC1, 12}, { 0x0491, 12}, { 0x0028, 6}, { 0x00C3, 8}, { 0x0151, 9}, { 0x02A1, 10},
1521 { 0x0573, 11}, { 0x0EC3, 12}, { 0x1F35, 13}, { 0x0065, 7}, { 0x01DA, 9}, { 0x02AF, 10},
1522 { 0x0277, 11}, { 0x08C9, 12}, { 0x1781, 13}, { 0x0025, 7}, { 0x0118, 9}, { 0x0646, 11},
1523 { 0x0AA6, 12}, { 0x1780, 13}, { 0x00C9, 8}, { 0x0321, 10}, { 0x0F9B, 12}, { 0x191E, 13},
1524 { 0x0048, 8}, { 0x07CC, 11}, { 0x0AA1, 12}, { 0x0180, 9}, { 0x0465, 11}, { 0x1905, 13},
1525 { 0x03E2, 10}, { 0x0EC1, 12}, { 0x3C9B, 14}, { 0x02F4, 10}, { 0x08C8, 12}, { 0x07C1, 11},
1526 { 0x0928, 13}, { 0x05E1, 11}, { 0x320D, 14}, { 0x0EC2, 12}, { 0x6418, 15}, { 0x1F34, 13},
1527 { 0x0078, 7}, { 0x0155, 9}, { 0x0552, 11}, { 0x191F, 13}, { 0x00FA, 8}, { 0x07DC, 11},
1528 { 0x1907, 13}, { 0x00AC, 8}, { 0x0249, 11}, { 0x13B1, 14}, { 0x01F6, 9}, { 0x0AE2, 12},
1529 { 0x01DC, 9}, { 0x04ED, 12}, { 0x0184, 9}, { 0x1904, 13}, { 0x0156, 9}, { 0x09D9, 13},
1530 { 0x03E7, 10}, { 0x0929, 13}, { 0x03B2, 10}, { 0x3B68, 14}, { 0x02F5, 10}, { 0x13B0, 14},
1531 { 0x0322, 10}, { 0x3B69, 14}, { 0x0234, 10}, { 0x7935, 15}, { 0x07C7, 11}, { 0xC833, 16},
1532 { 0x0660, 11}, { 0x7934, 15}, { 0x024B, 11}, { 0xC832, 16}, { 0x0AA7, 12}, { 0x1F18, 13},
1536 { 0x0002, 2}, { 0x0000, 3}, { 0x001E, 5}, { 0x0004, 5}, { 0x0012, 6}, { 0x0070, 7},
1537 { 0x001A, 7}, { 0x005F, 8}, { 0x0047, 8}, { 0x01D3, 9}, { 0x00B5, 9}, { 0x0057, 9},
1538 { 0x03B5, 10}, { 0x016D, 10}, { 0x0162, 10}, { 0x07CE, 11}, { 0x0719, 11}, { 0x0691, 11},
1539 { 0x02C6, 11}, { 0x0156, 11}, { 0x0F92, 12}, { 0x0D2E, 12}, { 0x0D20, 12}, { 0x059E, 12},
1540 { 0x0468, 12}, { 0x02A6, 12}, { 0x1DA2, 13}, { 0x1C60, 13}, { 0x1A43, 13}, { 0x0B1D, 13},
1541 { 0x08C0, 13}, { 0x055D, 13}, { 0x0003, 3}, { 0x000A, 5}, { 0x0077, 7}, { 0x00E5, 8},
1542 { 0x01D9, 9}, { 0x03E5, 10}, { 0x0166, 10}, { 0x0694, 11}, { 0x0152, 11}, { 0x059F, 12},
1543 { 0x1F3C, 13}, { 0x1A4B, 13}, { 0x055E, 13}, { 0x000C, 4}, { 0x007D, 7}, { 0x0044, 8},
1544 { 0x03E0, 10}, { 0x0769, 11}, { 0x0E31, 12}, { 0x1F26, 13}, { 0x055C, 13}, { 0x001B, 5},
1545 { 0x00E2, 8}, { 0x03A5, 10}, { 0x02C9, 11}, { 0x1F23, 13}, { 0x3B47, 14}, { 0x0007, 5},
1546 { 0x01D8, 9}, { 0x02D8, 11}, { 0x1F27, 13}, { 0x3494, 14}, { 0x0035, 6}, { 0x03E1, 10},
1547 { 0x059C, 12}, { 0x38C3, 14}, { 0x000C, 6}, { 0x0165, 10}, { 0x1D23, 13}, { 0x1638, 14},
1548 { 0x0068, 7}, { 0x0693, 11}, { 0x3A45, 14}, { 0x0020, 7}, { 0x0F90, 12}, { 0x7CF6, 15},
1549 { 0x00E8, 8}, { 0x058F, 12}, { 0x2CEF, 15}, { 0x0045, 8}, { 0x0B3A, 13}, { 0x01F1, 9},
1550 { 0x3B46, 14}, { 0x01A7, 9}, { 0x1676, 14}, { 0x0056, 9}, { 0x692A, 15}, { 0x038D, 10},
1551 { 0xE309, 16}, { 0x00AA, 10}, { 0x1C611, 17}, { 0x02DF, 11}, { 0xB3B9, 17}, { 0x02C8, 11},
1552 { 0x38C20, 18}, { 0x01B0, 11}, { 0x16390, 18}, { 0x0F9F, 12}, { 0x16771, 18}, { 0x0ED0, 12},
1553 { 0x71843, 19}, { 0x0D2A, 12}, { 0xF9E8C, 20}, { 0x0461, 12}, { 0xF9E8E, 20}, { 0x0B67, 13},
1554 { 0x055F, 13}, { 0x003F, 6}, { 0x006D, 9}, { 0x0E90, 12}, { 0x054E, 13}, { 0x0013, 6},
1555 { 0x0119, 10}, { 0x0B66, 13}, { 0x000B, 6}, { 0x0235, 11}, { 0x7CF5, 15}, { 0x0075, 7},
1556 { 0x0D24, 12}, { 0xF9E9, 16}, { 0x002E, 7}, { 0x1F22, 13}, { 0x0021, 7}, { 0x054F, 13},
1557 { 0x0014, 7}, { 0x3A44, 14}, { 0x00E4, 8}, { 0x7CF7, 15}, { 0x005E, 8}, { 0x7185, 15},
1558 { 0x0037, 8}, { 0x2C73, 15}, { 0x01DB, 9}, { 0x59DD, 16}, { 0x01C7, 9}, { 0x692B, 15},
1559 { 0x01A6, 9}, { 0x58E5, 16}, { 0x00B4, 9}, { 0x1F3D0, 17}, { 0x00B0, 9}, { 0xB1C9, 17},
1560 { 0x03E6, 10}, { 0x16770, 18}, { 0x016E, 10}, { 0x3E7A2, 18}, { 0x011B, 10}, { 0xF9E8D, 20},
1561 { 0x00D9, 10}, { 0xF9E8F, 20}, { 0x00A8, 10}, { 0x2C723, 19}, { 0x0749, 11}, { 0xE3084, 20},
1562 { 0x0696, 11}, { 0x58E45, 20}, { 0x02DE, 11}, { 0xB1C88, 21}, { 0x0231, 11}, { 0x1C610A, 21},
1563 { 0x01B1, 11}, { 0x71842D, 23}, { 0x0D2B, 12}, { 0x38C217, 22}, { 0x0D2F, 12}, { 0x163913, 22},
1564 { 0x05B2, 12}, { 0x163912, 22}, { 0x0469, 12}, { 0x71842C, 23}, { 0x1A42, 13}, { 0x08C1, 13},
1569 static const uint16_t vlc_offs[] = {
1570 0, 520, 552, 616, 1128, 1160, 1224, 1740, 1772, 1836, 1900, 2436,
1571 2986, 3050, 3610, 4154, 4218, 4746, 5326, 5390, 5902, 6554, 7658, 8342,
1572 9304, 9988, 10630, 11234, 12174, 13006, 13560, 14232, 14786, 15432, 16350, 17522,
1573 20372, 21818, 22330, 22394, 23166, 23678, 23742, 24820, 25332, 25396, 26460, 26980,
1574 27048, 27592, 27600, 27608, 27616, 27624, 28224, 28258, 28290, 28802, 28834, 28866,
1575 29378, 29412, 29444, 29960, 29994, 30026, 30538, 30572, 30604, 31120, 31154, 31186,
1576 31714, 31746, 31778, 32306, 32340, 32372
1580 * Init VC-1 specific tables and VC1Context members
1581 * @param v The VC1Context to initialize
1584 av_cold int ff_vc1_init_common(VC1Context *v)
1586 static int done = 0;
1588 static VLC_TYPE vlc_table[32372][2];
1590 v->hrd_rate = v->hrd_buffer = NULL;
1594 INIT_VLC_STATIC(&ff_vc1_bfraction_vlc, VC1_BFRACTION_VLC_BITS, 23,
1595 ff_vc1_bfraction_bits, 1, 1,
1596 ff_vc1_bfraction_codes, 1, 1, 1 << VC1_BFRACTION_VLC_BITS);
1597 INIT_VLC_STATIC(&ff_vc1_norm2_vlc, VC1_NORM2_VLC_BITS, 4,
1598 ff_vc1_norm2_bits, 1, 1,
1599 ff_vc1_norm2_codes, 1, 1, 1 << VC1_NORM2_VLC_BITS);
1600 INIT_VLC_STATIC(&ff_vc1_norm6_vlc, VC1_NORM6_VLC_BITS, 64,
1601 ff_vc1_norm6_bits, 1, 1,
1602 ff_vc1_norm6_codes, 2, 2, 556);
1603 INIT_VLC_STATIC(&ff_vc1_imode_vlc, VC1_IMODE_VLC_BITS, 7,
1604 ff_vc1_imode_bits, 1, 1,
1605 ff_vc1_imode_codes, 1, 1, 1 << VC1_IMODE_VLC_BITS);
1606 for (i = 0; i < 3; i++) {
1607 ff_vc1_ttmb_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 0]];
1608 ff_vc1_ttmb_vlc[i].table_allocated = vlc_offs[i * 3 + 1] - vlc_offs[i * 3 + 0];
1609 init_vlc(&ff_vc1_ttmb_vlc[i], VC1_TTMB_VLC_BITS, 16,
1610 ff_vc1_ttmb_bits[i], 1, 1,
1611 ff_vc1_ttmb_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
1612 ff_vc1_ttblk_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 1]];
1613 ff_vc1_ttblk_vlc[i].table_allocated = vlc_offs[i * 3 + 2] - vlc_offs[i * 3 + 1];
1614 init_vlc(&ff_vc1_ttblk_vlc[i], VC1_TTBLK_VLC_BITS, 8,
1615 ff_vc1_ttblk_bits[i], 1, 1,
1616 ff_vc1_ttblk_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1617 ff_vc1_subblkpat_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 2]];
1618 ff_vc1_subblkpat_vlc[i].table_allocated = vlc_offs[i * 3 + 3] - vlc_offs[i * 3 + 2];
1619 init_vlc(&ff_vc1_subblkpat_vlc[i], VC1_SUBBLKPAT_VLC_BITS, 15,
1620 ff_vc1_subblkpat_bits[i], 1, 1,
1621 ff_vc1_subblkpat_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1623 for (i = 0; i < 4; i++) {
1624 ff_vc1_4mv_block_pattern_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 9]];
1625 ff_vc1_4mv_block_pattern_vlc[i].table_allocated = vlc_offs[i * 3 + 10] - vlc_offs[i * 3 + 9];
1626 init_vlc(&ff_vc1_4mv_block_pattern_vlc[i], VC1_4MV_BLOCK_PATTERN_VLC_BITS, 16,
1627 ff_vc1_4mv_block_pattern_bits[i], 1, 1,
1628 ff_vc1_4mv_block_pattern_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1629 ff_vc1_cbpcy_p_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 10]];
1630 ff_vc1_cbpcy_p_vlc[i].table_allocated = vlc_offs[i * 3 + 11] - vlc_offs[i * 3 + 10];
1631 init_vlc(&ff_vc1_cbpcy_p_vlc[i], VC1_CBPCY_P_VLC_BITS, 64,
1632 ff_vc1_cbpcy_p_bits[i], 1, 1,
1633 ff_vc1_cbpcy_p_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
1634 ff_vc1_mv_diff_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 11]];
1635 ff_vc1_mv_diff_vlc[i].table_allocated = vlc_offs[i * 3 + 12] - vlc_offs[i * 3 + 11];
1636 init_vlc(&ff_vc1_mv_diff_vlc[i], VC1_MV_DIFF_VLC_BITS, 73,
1637 ff_vc1_mv_diff_bits[i], 1, 1,
1638 ff_vc1_mv_diff_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
1640 for (i = 0; i < 8; i++) {
1641 ff_vc1_ac_coeff_table[i].table = &vlc_table[vlc_offs[i * 2 + 21]];
1642 ff_vc1_ac_coeff_table[i].table_allocated = vlc_offs[i * 2 + 22] - vlc_offs[i * 2 + 21];
1643 init_vlc(&ff_vc1_ac_coeff_table[i], AC_VLC_BITS, ff_vc1_ac_sizes[i],
1644 &vc1_ac_tables[i][0][1], 8, 4,
1645 &vc1_ac_tables[i][0][0], 8, 4, INIT_VLC_USE_NEW_STATIC);
1646 /* initialize interlaced MVDATA tables (2-Ref) */
1647 ff_vc1_2ref_mvdata_vlc[i].table = &vlc_table[vlc_offs[i * 2 + 22]];
1648 ff_vc1_2ref_mvdata_vlc[i].table_allocated = vlc_offs[i * 2 + 23] - vlc_offs[i * 2 + 22];
1649 init_vlc(&ff_vc1_2ref_mvdata_vlc[i], VC1_2REF_MVDATA_VLC_BITS, 126,
1650 ff_vc1_2ref_mvdata_bits[i], 1, 1,
1651 ff_vc1_2ref_mvdata_codes[i], 4, 4, INIT_VLC_USE_NEW_STATIC);
1653 for (i = 0; i < 4; i++) {
1654 /* initialize 4MV MBMODE VLC tables for interlaced frame P picture */
1655 ff_vc1_intfr_4mv_mbmode_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 37]];
1656 ff_vc1_intfr_4mv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 38] - vlc_offs[i * 3 + 37];
1657 init_vlc(&ff_vc1_intfr_4mv_mbmode_vlc[i], VC1_INTFR_4MV_MBMODE_VLC_BITS, 15,
1658 ff_vc1_intfr_4mv_mbmode_bits[i], 1, 1,
1659 ff_vc1_intfr_4mv_mbmode_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
1660 /* initialize NON-4MV MBMODE VLC tables for the same */
1661 ff_vc1_intfr_non4mv_mbmode_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 38]];
1662 ff_vc1_intfr_non4mv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 39] - vlc_offs[i * 3 + 38];
1663 init_vlc(&ff_vc1_intfr_non4mv_mbmode_vlc[i], VC1_INTFR_NON4MV_MBMODE_VLC_BITS, 9,
1664 ff_vc1_intfr_non4mv_mbmode_bits[i], 1, 1,
1665 ff_vc1_intfr_non4mv_mbmode_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1666 /* initialize interlaced MVDATA tables (1-Ref) */
1667 ff_vc1_1ref_mvdata_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 39]];
1668 ff_vc1_1ref_mvdata_vlc[i].table_allocated = vlc_offs[i * 3 + 40] - vlc_offs[i * 3 + 39];
1669 init_vlc(&ff_vc1_1ref_mvdata_vlc[i], VC1_1REF_MVDATA_VLC_BITS, 72,
1670 ff_vc1_1ref_mvdata_bits[i], 1, 1,
1671 ff_vc1_1ref_mvdata_codes[i], 4, 4, INIT_VLC_USE_NEW_STATIC);
1673 for (i = 0; i < 4; i++) {
1674 /* Initialize 2MV Block pattern VLC tables */
1675 ff_vc1_2mv_block_pattern_vlc[i].table = &vlc_table[vlc_offs[i + 49]];
1676 ff_vc1_2mv_block_pattern_vlc[i].table_allocated = vlc_offs[i + 50] - vlc_offs[i + 49];
1677 init_vlc(&ff_vc1_2mv_block_pattern_vlc[i], VC1_2MV_BLOCK_PATTERN_VLC_BITS, 4,
1678 ff_vc1_2mv_block_pattern_bits[i], 1, 1,
1679 ff_vc1_2mv_block_pattern_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1681 for (i = 0; i < 8; i++) {
1682 /* Initialize interlaced CBPCY VLC tables (Table 124 - Table 131) */
1683 ff_vc1_icbpcy_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 53]];
1684 ff_vc1_icbpcy_vlc[i].table_allocated = vlc_offs[i * 3 + 54] - vlc_offs[i * 3 + 53];
1685 init_vlc(&ff_vc1_icbpcy_vlc[i], VC1_ICBPCY_VLC_BITS, 63,
1686 ff_vc1_icbpcy_p_bits[i], 1, 1,
1687 ff_vc1_icbpcy_p_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
1688 /* Initialize interlaced field picture MBMODE VLC tables */
1689 ff_vc1_if_mmv_mbmode_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 54]];
1690 ff_vc1_if_mmv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 55] - vlc_offs[i * 3 + 54];
1691 init_vlc(&ff_vc1_if_mmv_mbmode_vlc[i], VC1_IF_MMV_MBMODE_VLC_BITS, 8,
1692 ff_vc1_if_mmv_mbmode_bits[i], 1, 1,
1693 ff_vc1_if_mmv_mbmode_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1694 ff_vc1_if_1mv_mbmode_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 55]];
1695 ff_vc1_if_1mv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 56] - vlc_offs[i * 3 + 55];
1696 init_vlc(&ff_vc1_if_1mv_mbmode_vlc[i], VC1_IF_1MV_MBMODE_VLC_BITS, 6,
1697 ff_vc1_if_1mv_mbmode_bits[i], 1, 1,
1698 ff_vc1_if_1mv_mbmode_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1703 /* Other defaults */
1705 v->mvrange = 0; /* 7.1.1.18, p80 */
1707 ff_vc1dsp_init(&v->vc1dsp);