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
30 #include "libavutil/attributes.h"
33 #include "mpegvideo.h"
36 #include "msmpeg4data.h"
38 #include "simple_idct.h"
43 /***********************************************************************/
45 * @name VC-1 Bitplane decoding
63 /** @} */ //imode defines
65 /** Decode rows by checking if they are skipped
66 * @param plane Buffer to store decoded bits
67 * @param[in] width Width of this buffer
68 * @param[in] height Height of this buffer
69 * @param[in] stride of this buffer
71 static void decode_rowskip(uint8_t* plane, int width, int height, int stride,
76 for (y = 0; y < height; y++) {
77 if (!get_bits1(gb)) //rowskip
78 memset(plane, 0, width);
80 for (x = 0; x < width; x++)
81 plane[x] = get_bits1(gb);
86 /** Decode columns by checking if they are skipped
87 * @param plane Buffer to store decoded bits
88 * @param[in] width Width of this buffer
89 * @param[in] height Height of this buffer
90 * @param[in] stride of this buffer
91 * @todo FIXME: Optimize
93 static void decode_colskip(uint8_t* plane, int width, int height, int stride,
98 for (x = 0; x < width; x++) {
99 if (!get_bits1(gb)) //colskip
100 for (y = 0; y < height; y++)
103 for (y = 0; y < height; y++)
104 plane[y*stride] = get_bits1(gb);
109 /** Decode a bitplane's bits
110 * @param data bitplane where to store the decode bits
111 * @param[out] raw_flag pointer to the flag indicating that this bitplane is not coded explicitly
112 * @param v VC-1 context for bit reading and logging
114 * @todo FIXME: Optimize
116 static int bitplane_decoding(uint8_t* data, int *raw_flag, VC1Context *v)
118 GetBitContext *gb = &v->s.gb;
120 int imode, x, y, code, offset;
121 uint8_t invert, *planep = data;
122 int width, height, stride;
124 width = v->s.mb_width;
125 height = v->s.mb_height >> v->field_mode;
126 stride = v->s.mb_stride;
127 invert = get_bits1(gb);
128 imode = get_vlc2(gb, ff_vc1_imode_vlc.table, VC1_IMODE_VLC_BITS, 1);
133 //Data is actually read in the MB layer (same for all tests == "raw")
134 *raw_flag = 1; //invert ignored
138 if ((height * width) & 1) {
139 *planep++ = get_bits1(gb);
144 // decode bitplane as one long line
145 for (y = offset; y < height * width; y += 2) {
146 code = get_vlc2(gb, ff_vc1_norm2_vlc.table, VC1_NORM2_VLC_BITS, 1);
147 *planep++ = code & 1;
149 if (offset == width) {
151 planep += stride - width;
153 *planep++ = code >> 1;
155 if (offset == width) {
157 planep += stride - width;
163 if (!(height % 3) && (width % 3)) { // use 2x3 decoding
164 for (y = 0; y < height; y += 3) {
165 for (x = width & 1; x < width; x += 2) {
166 code = get_vlc2(gb, ff_vc1_norm6_vlc.table, VC1_NORM6_VLC_BITS, 2);
168 av_log(v->s.avctx, AV_LOG_DEBUG, "invalid NORM-6 VLC\n");
171 planep[x + 0] = (code >> 0) & 1;
172 planep[x + 1] = (code >> 1) & 1;
173 planep[x + 0 + stride] = (code >> 2) & 1;
174 planep[x + 1 + stride] = (code >> 3) & 1;
175 planep[x + 0 + stride * 2] = (code >> 4) & 1;
176 planep[x + 1 + stride * 2] = (code >> 5) & 1;
178 planep += stride * 3;
181 decode_colskip(data, 1, height, stride, &v->s.gb);
183 planep += (height & 1) * stride;
184 for (y = height & 1; y < height; y += 2) {
185 for (x = width % 3; x < width; x += 3) {
186 code = get_vlc2(gb, ff_vc1_norm6_vlc.table, VC1_NORM6_VLC_BITS, 2);
188 av_log(v->s.avctx, AV_LOG_DEBUG, "invalid NORM-6 VLC\n");
191 planep[x + 0] = (code >> 0) & 1;
192 planep[x + 1] = (code >> 1) & 1;
193 planep[x + 2] = (code >> 2) & 1;
194 planep[x + 0 + stride] = (code >> 3) & 1;
195 planep[x + 1 + stride] = (code >> 4) & 1;
196 planep[x + 2 + stride] = (code >> 5) & 1;
198 planep += stride * 2;
202 decode_colskip(data, x, height, stride, &v->s.gb);
204 decode_rowskip(data + x, width - x, 1, stride, &v->s.gb);
208 decode_rowskip(data, width, height, stride, &v->s.gb);
211 decode_colskip(data, width, height, stride, &v->s.gb);
217 /* Applying diff operator */
218 if (imode == IMODE_DIFF2 || imode == IMODE_DIFF6) {
221 for (x = 1; x < width; x++)
222 planep[x] ^= planep[x-1];
223 for (y = 1; y < height; y++) {
225 planep[0] ^= planep[-stride];
226 for (x = 1; x < width; x++) {
227 if (planep[x-1] != planep[x-stride]) planep[x] ^= invert;
228 else planep[x] ^= planep[x-1];
233 for (x = 0; x < stride * height; x++)
234 planep[x] = !planep[x]; //FIXME stride
236 return (imode << 1) + invert;
239 /** @} */ //Bitplane group
241 /***********************************************************************/
242 /** VOP Dquant decoding
243 * @param v VC-1 Context
245 static int vop_dquant_decoding(VC1Context *v)
247 GetBitContext *gb = &v->s.gb;
251 if (v->dquant == 2) {
252 pqdiff = get_bits(gb, 3);
254 v->altpq = get_bits(gb, 5);
256 v->altpq = v->pq + pqdiff + 1;
258 v->dquantfrm = get_bits1(gb);
260 v->dqprofile = get_bits(gb, 2);
261 switch (v->dqprofile) {
262 case DQPROFILE_SINGLE_EDGE:
263 case DQPROFILE_DOUBLE_EDGES:
264 v->dqsbedge = get_bits(gb, 2);
266 case DQPROFILE_ALL_MBS:
267 v->dqbilevel = get_bits1(gb);
273 if (v->dqbilevel || v->dqprofile != DQPROFILE_ALL_MBS) {
274 pqdiff = get_bits(gb, 3);
276 v->altpq = get_bits(gb, 5);
278 v->altpq = v->pq + pqdiff + 1;
285 static int decode_sequence_header_adv(VC1Context *v, GetBitContext *gb);
288 * Decode Simple/Main Profiles sequence header
289 * @see Figure 7-8, p16-17
290 * @param avctx Codec context
291 * @param gb GetBit context initialized from Codec context extra_data
294 int ff_vc1_decode_sequence_header(AVCodecContext *avctx, VC1Context *v, GetBitContext *gb)
296 av_log(avctx, AV_LOG_DEBUG, "Header: %0X\n", show_bits_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 "Old WMV3 version detected, some frames may be decoded incorrectly\n");
402 //TODO: figure out what they mean (always 0x402F)
405 av_log(avctx, AV_LOG_DEBUG,
406 "Profile %i:\nfrmrtq_postproc=%i, bitrtq_postproc=%i\n"
407 "LoopFilter=%i, MultiRes=%i, FastUVMC=%i, Extended MV=%i\n"
408 "Rangered=%i, VSTransform=%i, Overlap=%i, SyncMarker=%i\n"
409 "DQuant=%i, Quantizer mode=%i, Max B frames=%i\n",
410 v->profile, v->frmrtq_postproc, v->bitrtq_postproc,
411 v->s.loop_filter, v->multires, v->fastuvmc, v->extended_mv,
412 v->rangered, v->vstransform, v->overlap, v->s.resync_marker,
413 v->dquant, v->quantizer_mode, avctx->max_b_frames);
417 static int decode_sequence_header_adv(VC1Context *v, GetBitContext *gb)
420 v->level = get_bits(gb, 3);
422 av_log(v->s.avctx, AV_LOG_ERROR, "Reserved LEVEL %i\n",v->level);
424 v->chromaformat = get_bits(gb, 2);
425 if (v->chromaformat != 1) {
426 av_log(v->s.avctx, AV_LOG_ERROR,
427 "Only 4:2:0 chroma format supported\n");
432 v->frmrtq_postproc = get_bits(gb, 3); //common
433 // (bitrate-32kbps)/64kbps
434 v->bitrtq_postproc = get_bits(gb, 5); //common
435 v->postprocflag = get_bits1(gb); //common
437 v->max_coded_width = (get_bits(gb, 12) + 1) << 1;
438 v->max_coded_height = (get_bits(gb, 12) + 1) << 1;
439 v->broadcast = get_bits1(gb);
440 v->interlace = get_bits1(gb);
441 v->tfcntrflag = get_bits1(gb);
442 v->finterpflag = get_bits1(gb);
443 skip_bits1(gb); // reserved
445 av_log(v->s.avctx, AV_LOG_DEBUG,
446 "Advanced Profile level %i:\nfrmrtq_postproc=%i, bitrtq_postproc=%i\n"
447 "LoopFilter=%i, ChromaFormat=%i, Pulldown=%i, Interlace: %i\n"
448 "TFCTRflag=%i, FINTERPflag=%i\n",
449 v->level, v->frmrtq_postproc, v->bitrtq_postproc,
450 v->s.loop_filter, v->chromaformat, v->broadcast, v->interlace,
451 v->tfcntrflag, v->finterpflag);
453 v->psf = get_bits1(gb);
454 if (v->psf) { //PsF, 6.1.13
455 av_log(v->s.avctx, AV_LOG_ERROR, "Progressive Segmented Frame mode: not supported (yet)\n");
458 v->s.max_b_frames = v->s.avctx->max_b_frames = 7;
459 if (get_bits1(gb)) { //Display Info - decoding is not affected by it
461 av_log(v->s.avctx, AV_LOG_DEBUG, "Display extended info:\n");
462 w = get_bits(gb, 14) + 1;
463 h = get_bits(gb, 14) + 1;
464 av_log(v->s.avctx, AV_LOG_DEBUG, "Display dimensions: %ix%i\n", w, h);
466 ar = get_bits(gb, 4);
468 v->s.avctx->sample_aspect_ratio = ff_vc1_pixel_aspect[ar];
469 } else if (ar == 15) {
470 w = get_bits(gb, 8) + 1;
471 h = get_bits(gb, 8) + 1;
472 v->s.avctx->sample_aspect_ratio = (AVRational){w, h};
474 av_reduce(&v->s.avctx->sample_aspect_ratio.num,
475 &v->s.avctx->sample_aspect_ratio.den,
476 v->s.avctx->height * w,
477 v->s.avctx->width * h,
480 av_log(v->s.avctx, AV_LOG_DEBUG, "Aspect: %i:%i\n",
481 v->s.avctx->sample_aspect_ratio.num,
482 v->s.avctx->sample_aspect_ratio.den);
484 if (get_bits1(gb)) { //framerate stuff
486 v->s.avctx->time_base.num = 32;
487 v->s.avctx->time_base.den = get_bits(gb, 16) + 1;
490 nr = get_bits(gb, 8);
491 dr = get_bits(gb, 4);
492 if (nr > 0 && nr < 8 && dr > 0 && dr < 3) {
493 v->s.avctx->time_base.num = ff_vc1_fps_dr[dr - 1];
494 v->s.avctx->time_base.den = ff_vc1_fps_nr[nr - 1] * 1000;
497 if (v->broadcast) { // Pulldown may be present
498 v->s.avctx->time_base.den *= 2;
499 v->s.avctx->ticks_per_frame = 2;
504 v->s.avctx->color_primaries = get_bits(gb, 8);
505 v->s.avctx->color_trc = get_bits(gb, 8);
506 v->s.avctx->colorspace = get_bits(gb, 8);
507 v->s.avctx->color_range = AVCOL_RANGE_MPEG;
511 v->hrd_param_flag = get_bits1(gb);
512 if (v->hrd_param_flag) {
514 v->hrd_num_leaky_buckets = get_bits(gb, 5);
515 skip_bits(gb, 4); //bitrate exponent
516 skip_bits(gb, 4); //buffer size exponent
517 for (i = 0; i < v->hrd_num_leaky_buckets; i++) {
518 skip_bits(gb, 16); //hrd_rate[n]
519 skip_bits(gb, 16); //hrd_buffer[n]
525 int ff_vc1_decode_entry_point(AVCodecContext *avctx, VC1Context *v, GetBitContext *gb)
530 av_log(avctx, AV_LOG_DEBUG, "Entry point: %08X\n", show_bits_long(gb, 32));
531 v->broken_link = get_bits1(gb);
532 v->closed_entry = get_bits1(gb);
533 v->panscanflag = get_bits1(gb);
534 v->refdist_flag = get_bits1(gb);
535 v->s.loop_filter = get_bits1(gb);
536 if (v->s.avctx->skip_loop_filter >= AVDISCARD_ALL)
537 v->s.loop_filter = 0;
538 v->fastuvmc = get_bits1(gb);
539 v->extended_mv = get_bits1(gb);
540 v->dquant = get_bits(gb, 2);
541 v->vstransform = get_bits1(gb);
542 v->overlap = get_bits1(gb);
543 v->quantizer_mode = get_bits(gb, 2);
545 if (v->hrd_param_flag) {
546 for (i = 0; i < v->hrd_num_leaky_buckets; i++) {
547 skip_bits(gb, 8); //hrd_full[n]
552 w = (get_bits(gb, 12)+1)<<1;
553 h = (get_bits(gb, 12)+1)<<1;
555 w = v->max_coded_width;
556 h = v->max_coded_height;
558 avcodec_set_dimensions(avctx, w, h);
560 v->extended_dmv = get_bits1(gb);
561 if ((v->range_mapy_flag = get_bits1(gb))) {
562 av_log(avctx, AV_LOG_ERROR, "Luma scaling is not supported, expect wrong picture\n");
563 v->range_mapy = get_bits(gb, 3);
565 if ((v->range_mapuv_flag = get_bits1(gb))) {
566 av_log(avctx, AV_LOG_ERROR, "Chroma scaling is not supported, expect wrong picture\n");
567 v->range_mapuv = get_bits(gb, 3);
570 av_log(avctx, AV_LOG_DEBUG, "Entry point info:\n"
571 "BrokenLink=%i, ClosedEntry=%i, PanscanFlag=%i\n"
572 "RefDist=%i, Postproc=%i, FastUVMC=%i, ExtMV=%i\n"
573 "DQuant=%i, VSTransform=%i, Overlap=%i, Qmode=%i\n",
574 v->broken_link, v->closed_entry, v->panscanflag, v->refdist_flag, v->s.loop_filter,
575 v->fastuvmc, v->extended_mv, v->dquant, v->vstransform, v->overlap, v->quantizer_mode);
580 /* fill lookup tables for intensity compensation */
581 #define INIT_LUT(lumscale, lumshift, luty, lutuv, chain) do { \
582 int scale, shift, i; \
585 shift = (255 - lumshift * 2) << 6; \
589 scale = lumscale + 32; \
591 shift = (lumshift - 64) << 6; \
593 shift = lumshift << 6; \
595 for (i = 0; i < 256; i++) { \
596 int iy = chain ? luty[i] : i; \
597 int iu = chain ? lutuv[i] : i; \
598 luty[i] = av_clip_uint8((scale * iy + shift + 32) >> 6); \
599 lutuv[i] = av_clip_uint8((scale * (iu - 128) + 128*64 + 32) >> 6);\
604 static void rotate_luts(VC1Context *v)
606 #define ROTATE(DEF, L, N, C, A) do {\
607 if (v->s.pict_type == AV_PICTURE_TYPE_BI || v->s.pict_type == AV_PICTURE_TYPE_B) {\
611 memcpy(&tmp, &L , sizeof(tmp));\
612 memcpy(&L , &N , sizeof(tmp));\
613 memcpy(&N , &tmp, sizeof(tmp));\
618 ROTATE(int tmp , v->last_use_ic, v->next_use_ic, v->curr_use_ic, v->aux_use_ic);
619 ROTATE(uint8_t tmp[2][256], v->last_luty , v->next_luty , v->curr_luty , v->aux_luty);
620 ROTATE(uint8_t tmp[2][256], v->last_lutuv, v->next_lutuv, v->curr_lutuv, v->aux_lutuv);
622 INIT_LUT(32, 0 , v->curr_luty[0] , v->curr_lutuv[0] , 0);
623 INIT_LUT(32, 0 , v->curr_luty[1] , v->curr_lutuv[1] , 0);
627 int ff_vc1_parse_frame_header(VC1Context *v, GetBitContext* gb)
629 int pqindex, lowquant, status;
632 v->interpfrm = get_bits1(gb);
633 if (!v->s.avctx->codec)
635 if (v->s.avctx->codec_id == AV_CODEC_ID_MSS2)
638 v->multires = get_bits(gb, 2) == 1;
640 skip_bits(gb, 2); //framecnt unused
643 v->rangeredfrm = get_bits1(gb);
644 v->s.pict_type = get_bits1(gb);
645 if (v->s.avctx->max_b_frames) {
646 if (!v->s.pict_type) {
648 v->s.pict_type = AV_PICTURE_TYPE_I;
650 v->s.pict_type = AV_PICTURE_TYPE_B;
652 v->s.pict_type = AV_PICTURE_TYPE_P;
654 v->s.pict_type = v->s.pict_type ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_I;
657 if (v->s.pict_type == AV_PICTURE_TYPE_B) {
658 v->bfraction_lut_index = get_vlc2(gb, ff_vc1_bfraction_vlc.table, VC1_BFRACTION_VLC_BITS, 1);
659 v->bfraction = ff_vc1_bfraction_lut[v->bfraction_lut_index];
660 if (v->bfraction == 0) {
661 v->s.pict_type = AV_PICTURE_TYPE_BI;
664 if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI)
665 skip_bits(gb, 7); // skip buffer fullness
671 if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI)
673 if (v->s.pict_type == AV_PICTURE_TYPE_P)
676 /* Quantizer stuff */
677 pqindex = get_bits(gb, 5);
680 if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
681 v->pq = ff_vc1_pquant_table[0][pqindex];
683 v->pq = ff_vc1_pquant_table[1][pqindex];
686 if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
687 v->pquantizer = pqindex < 9;
688 if (v->quantizer_mode == QUANT_NON_UNIFORM)
690 v->pqindex = pqindex;
692 v->halfpq = get_bits1(gb);
695 if (v->quantizer_mode == QUANT_FRAME_EXPLICIT)
696 v->pquantizer = get_bits1(gb);
698 if (v->extended_mv == 1)
699 v->mvrange = get_unary(gb, 0, 3);
700 v->k_x = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13
701 v->k_y = v->mvrange + 8; //k_y can be 8 9 10 11
702 v->range_x = 1 << (v->k_x - 1);
703 v->range_y = 1 << (v->k_y - 1);
704 if (v->multires && v->s.pict_type != AV_PICTURE_TYPE_B)
705 v->respic = get_bits(gb, 2);
707 if (v->res_x8 && (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI)) {
708 v->x8_type = get_bits1(gb);
711 av_dlog(v->s.avctx, "%c Frame: QP=[%i]%i (+%i/2) %i\n",
712 (v->s.pict_type == AV_PICTURE_TYPE_P) ? 'P' : ((v->s.pict_type == AV_PICTURE_TYPE_I) ? 'I' : 'B'),
713 pqindex, v->pq, v->halfpq, v->rangeredfrm);
715 if(v->first_pic_header_flag) {
719 switch (v->s.pict_type) {
720 case AV_PICTURE_TYPE_P:
721 if (v->pq < 5) v->tt_index = 0;
722 else if (v->pq < 13) v->tt_index = 1;
723 else v->tt_index = 2;
725 lowquant = (v->pq > 12) ? 0 : 1;
726 v->mv_mode = ff_vc1_mv_pmode_table[lowquant][get_unary(gb, 1, 4)];
727 if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {
728 v->mv_mode2 = ff_vc1_mv_pmode_table2[lowquant][get_unary(gb, 1, 3)];
729 v->lumscale = get_bits(gb, 6);
730 v->lumshift = get_bits(gb, 6);
732 /* fill lookup tables for intensity compensation */
733 INIT_LUT(v->lumscale, v->lumshift , v->last_luty[0] , v->last_lutuv[0] , 1);
734 INIT_LUT(v->lumscale, v->lumshift , v->last_luty[1] , v->last_lutuv[1] , 1);
736 v->qs_last = v->s.quarter_sample;
737 if (v->mv_mode == MV_PMODE_1MV_HPEL || v->mv_mode == MV_PMODE_1MV_HPEL_BILIN)
738 v->s.quarter_sample = 0;
739 else if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {
740 if (v->mv_mode2 == MV_PMODE_1MV_HPEL || v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN)
741 v->s.quarter_sample = 0;
743 v->s.quarter_sample = 1;
745 v->s.quarter_sample = 1;
746 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));
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->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);
775 v->ttfrm = 0; //FIXME Is that so ?
776 if (v->vstransform) {
777 v->ttmbf = get_bits1(gb);
779 v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
786 case AV_PICTURE_TYPE_B:
787 if (v->pq < 5) v->tt_index = 0;
788 else if (v->pq < 13) v->tt_index = 1;
789 else v->tt_index = 2;
791 v->mv_mode = get_bits1(gb) ? MV_PMODE_1MV : MV_PMODE_1MV_HPEL_BILIN;
792 v->qs_last = v->s.quarter_sample;
793 v->s.quarter_sample = (v->mv_mode == MV_PMODE_1MV);
794 v->s.mspel = v->s.quarter_sample;
796 status = bitplane_decoding(v->direct_mb_plane, &v->dmb_is_raw, v);
799 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Direct Type plane encoding: "
800 "Imode: %i, Invert: %i\n", status>>1, status&1);
801 status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
804 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
805 "Imode: %i, Invert: %i\n", status>>1, status&1);
807 v->s.mv_table_index = get_bits(gb, 2);
808 v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];
811 av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
812 vop_dquant_decoding(v);
816 if (v->vstransform) {
817 v->ttmbf = get_bits1(gb);
819 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;
849 int mbmodetab, imvtab, icbptab, twomvbptab, fourmvbptab; /* useful only for debugging */
853 v->p_frame_skipped = 0;
854 if (v->second_field) {
855 if(v->fcm!=2 || v->field_mode!=1)
857 v->s.pict_type = (v->fptype & 1) ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_I;
859 v->s.pict_type = (v->fptype & 1) ? AV_PICTURE_TYPE_BI : AV_PICTURE_TYPE_B;
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;
881 v->fptype = get_bits(gb, 3);
882 v->s.pict_type = (v->fptype & 2) ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_I;
883 if (v->fptype & 4) // B-picture
884 v->s.pict_type = (v->fptype & 2) ? AV_PICTURE_TYPE_BI : AV_PICTURE_TYPE_B;
886 switch (get_unary(gb, 0, 4)) {
888 v->s.pict_type = AV_PICTURE_TYPE_P;
891 v->s.pict_type = AV_PICTURE_TYPE_B;
894 v->s.pict_type = AV_PICTURE_TYPE_I;
897 v->s.pict_type = AV_PICTURE_TYPE_BI;
900 v->s.pict_type = AV_PICTURE_TYPE_P; // skipped pic
901 v->p_frame_skipped = 1;
908 if (!v->interlace || v->psf) {
909 v->rptfrm = get_bits(gb, 2);
911 v->tff = get_bits1(gb);
912 v->rff = get_bits1(gb);
917 if (v->panscanflag) {
918 avpriv_report_missing_feature(v->s.avctx, "Pan-scan");
921 if (v->p_frame_skipped) {
924 v->rnd = get_bits1(gb);
926 v->uvsamp = get_bits1(gb);
927 if(!ff_vc1_bfraction_vlc.table)
928 return 0; //parsing only, vlc tables havnt been allocated
930 if (!v->refdist_flag)
932 else if ((v->s.pict_type != AV_PICTURE_TYPE_B) && (v->s.pict_type != AV_PICTURE_TYPE_BI)) {
933 v->refdist = get_bits(gb, 2);
935 v->refdist += get_unary(gb, 0, 16);
937 if ((v->s.pict_type == AV_PICTURE_TYPE_B) || (v->s.pict_type == AV_PICTURE_TYPE_BI)) {
938 v->bfraction_lut_index = get_vlc2(gb, ff_vc1_bfraction_vlc.table, VC1_BFRACTION_VLC_BITS, 1);
939 v->bfraction = ff_vc1_bfraction_lut[v->bfraction_lut_index];
940 v->frfd = (v->bfraction * v->refdist) >> 8;
941 v->brfd = v->refdist - v->frfd - 1;
945 goto parse_common_info;
947 if (v->fcm == PROGRESSIVE) {
949 v->interpfrm = get_bits1(gb);
950 if (v->s.pict_type == AV_PICTURE_TYPE_B) {
951 v->bfraction_lut_index = get_vlc2(gb, ff_vc1_bfraction_vlc.table, VC1_BFRACTION_VLC_BITS, 1);
952 v->bfraction = ff_vc1_bfraction_lut[v->bfraction_lut_index];
953 if (v->bfraction == 0) {
954 v->s.pict_type = AV_PICTURE_TYPE_BI; /* XXX: should not happen here */
961 v->cur_field_type = !(v->tff ^ v->second_field);
962 pqindex = get_bits(gb, 5);
965 v->pqindex = pqindex;
966 if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
967 v->pq = ff_vc1_pquant_table[0][pqindex];
969 v->pq = ff_vc1_pquant_table[1][pqindex];
972 if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
973 v->pquantizer = pqindex < 9;
974 if (v->quantizer_mode == QUANT_NON_UNIFORM)
976 v->pqindex = pqindex;
978 v->halfpq = get_bits1(gb);
981 if (v->quantizer_mode == QUANT_FRAME_EXPLICIT)
982 v->pquantizer = get_bits1(gb);
984 v->postproc = get_bits(gb, 2);
989 if(v->first_pic_header_flag) {
993 switch (v->s.pict_type) {
994 case AV_PICTURE_TYPE_I:
995 case AV_PICTURE_TYPE_BI:
996 if (v->fcm == ILACE_FRAME) { //interlace frame picture
997 status = bitplane_decoding(v->fieldtx_plane, &v->fieldtx_is_raw, v);
1000 av_log(v->s.avctx, AV_LOG_DEBUG, "FIELDTX plane encoding: "
1001 "Imode: %i, Invert: %i\n", status>>1, status&1);
1003 status = bitplane_decoding(v->acpred_plane, &v->acpred_is_raw, v);
1006 av_log(v->s.avctx, AV_LOG_DEBUG, "ACPRED plane encoding: "
1007 "Imode: %i, Invert: %i\n", status>>1, status&1);
1008 v->condover = CONDOVER_NONE;
1009 if (v->overlap && v->pq <= 8) {
1010 v->condover = decode012(gb);
1011 if (v->condover == CONDOVER_SELECT) {
1012 status = bitplane_decoding(v->over_flags_plane, &v->overflg_is_raw, v);
1015 av_log(v->s.avctx, AV_LOG_DEBUG, "CONDOVER plane encoding: "
1016 "Imode: %i, Invert: %i\n", status>>1, status&1);
1020 case AV_PICTURE_TYPE_P:
1021 if (v->field_mode) {
1022 v->numref = get_bits1(gb);
1024 v->reffield = get_bits1(gb);
1025 v->ref_field_type[0] = v->reffield ^ !v->cur_field_type;
1029 v->mvrange = get_unary(gb, 0, 3);
1033 if (v->extended_dmv)
1034 v->dmvrange = get_unary(gb, 0, 3);
1037 if (v->fcm == ILACE_FRAME) { // interlaced frame picture
1038 v->fourmvswitch = get_bits1(gb);
1039 v->intcomp = get_bits1(gb);
1041 v->lumscale = get_bits(gb, 6);
1042 v->lumshift = get_bits(gb, 6);
1043 INIT_LUT(v->lumscale, v->lumshift, v->last_luty[0], v->last_lutuv[0], 1);
1044 INIT_LUT(v->lumscale, v->lumshift, v->last_luty[1], v->last_lutuv[1], 1);
1047 status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
1048 av_log(v->s.avctx, AV_LOG_DEBUG, "SKIPMB plane encoding: "
1049 "Imode: %i, Invert: %i\n", status>>1, status&1);
1050 mbmodetab = get_bits(gb, 2);
1051 if (v->fourmvswitch)
1052 v->mbmode_vlc = &ff_vc1_intfr_4mv_mbmode_vlc[mbmodetab];
1054 v->mbmode_vlc = &ff_vc1_intfr_non4mv_mbmode_vlc[mbmodetab];
1055 imvtab = get_bits(gb, 2);
1056 v->imv_vlc = &ff_vc1_1ref_mvdata_vlc[imvtab];
1057 // interlaced p-picture cbpcy range is [1, 63]
1058 icbptab = get_bits(gb, 3);
1059 v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[icbptab];
1060 twomvbptab = get_bits(gb, 2);
1061 v->twomvbp_vlc = &ff_vc1_2mv_block_pattern_vlc[twomvbptab];
1062 if (v->fourmvswitch) {
1063 fourmvbptab = get_bits(gb, 2);
1064 v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[fourmvbptab];
1068 v->k_x = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13
1069 v->k_y = v->mvrange + 8; //k_y can be 8 9 10 11
1070 v->range_x = 1 << (v->k_x - 1);
1071 v->range_y = 1 << (v->k_y - 1);
1075 else if (v->pq < 13)
1079 if (v->fcm != ILACE_FRAME) {
1081 mvmode = get_unary(gb, 1, 4);
1082 lowquant = (v->pq > 12) ? 0 : 1;
1083 v->mv_mode = ff_vc1_mv_pmode_table[lowquant][mvmode];
1084 if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {
1086 mvmode2 = get_unary(gb, 1, 3);
1087 v->mv_mode2 = ff_vc1_mv_pmode_table2[lowquant][mvmode2];
1088 if (v->field_mode) {
1089 v->intcompfield = decode210(gb)^3;
1091 v->intcompfield = 3;
1093 v->lumscale2 = v->lumscale = 32;
1094 v->lumshift2 = v->lumshift = 0;
1095 if (v->intcompfield & 1) {
1096 v->lumscale = get_bits(gb, 6);
1097 v->lumshift = get_bits(gb, 6);
1099 if ((v->intcompfield & 2) && v->field_mode) {
1100 v->lumscale2 = get_bits(gb, 6);
1101 v->lumshift2 = get_bits(gb, 6);
1102 } else if(!v->field_mode) {
1103 v->lumscale2 = v->lumscale;
1104 v->lumshift2 = v->lumshift;
1106 if (v->field_mode && v->second_field) {
1107 if (v->cur_field_type) {
1108 INIT_LUT(v->lumscale , v->lumshift , v->curr_luty[v->cur_field_type^1], v->curr_lutuv[v->cur_field_type^1], 0);
1109 INIT_LUT(v->lumscale2, v->lumshift2, v->last_luty[v->cur_field_type ], v->last_lutuv[v->cur_field_type ], 1);
1111 INIT_LUT(v->lumscale2, v->lumshift2, v->curr_luty[v->cur_field_type^1], v->curr_lutuv[v->cur_field_type^1], 0);
1112 INIT_LUT(v->lumscale , v->lumshift , v->last_luty[v->cur_field_type ], v->last_lutuv[v->cur_field_type ], 1);
1114 v->next_use_ic = v->curr_use_ic = 1;
1116 INIT_LUT(v->lumscale , v->lumshift , v->last_luty[0], v->last_lutuv[0], 1);
1117 INIT_LUT(v->lumscale2, v->lumshift2, v->last_luty[1], v->last_lutuv[1], 1);
1121 v->qs_last = v->s.quarter_sample;
1122 if (v->mv_mode == MV_PMODE_1MV_HPEL || v->mv_mode == MV_PMODE_1MV_HPEL_BILIN)
1123 v->s.quarter_sample = 0;
1124 else if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {
1125 if (v->mv_mode2 == MV_PMODE_1MV_HPEL || v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN)
1126 v->s.quarter_sample = 0;
1128 v->s.quarter_sample = 1;
1130 v->s.quarter_sample = 1;
1131 v->s.mspel = !(v->mv_mode == MV_PMODE_1MV_HPEL_BILIN
1132 || (v->mv_mode == MV_PMODE_INTENSITY_COMP
1133 && v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN));
1135 if (v->fcm == PROGRESSIVE) { // progressive
1136 if ((v->mv_mode == MV_PMODE_INTENSITY_COMP &&
1137 v->mv_mode2 == MV_PMODE_MIXED_MV)
1138 || v->mv_mode == MV_PMODE_MIXED_MV) {
1139 status = bitplane_decoding(v->mv_type_mb_plane, &v->mv_type_is_raw, v);
1142 av_log(v->s.avctx, AV_LOG_DEBUG, "MB MV Type plane encoding: "
1143 "Imode: %i, Invert: %i\n", status>>1, status&1);
1145 v->mv_type_is_raw = 0;
1146 memset(v->mv_type_mb_plane, 0, v->s.mb_stride * v->s.mb_height);
1148 status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
1151 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
1152 "Imode: %i, Invert: %i\n", status>>1, status&1);
1154 /* Hopefully this is correct for P frames */
1155 v->s.mv_table_index = get_bits(gb, 2); //but using ff_vc1_ tables
1156 v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];
1157 } else if (v->fcm == ILACE_FRAME) { // frame interlaced
1158 v->qs_last = v->s.quarter_sample;
1159 v->s.quarter_sample = 1;
1161 } else { // field interlaced
1162 mbmodetab = get_bits(gb, 3);
1163 imvtab = get_bits(gb, 2 + v->numref);
1165 v->imv_vlc = &ff_vc1_1ref_mvdata_vlc[imvtab];
1167 v->imv_vlc = &ff_vc1_2ref_mvdata_vlc[imvtab];
1168 icbptab = get_bits(gb, 3);
1169 v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[icbptab];
1170 if ((v->mv_mode == MV_PMODE_INTENSITY_COMP &&
1171 v->mv_mode2 == MV_PMODE_MIXED_MV) || v->mv_mode == MV_PMODE_MIXED_MV) {
1172 fourmvbptab = get_bits(gb, 2);
1173 v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[fourmvbptab];
1174 v->mbmode_vlc = &ff_vc1_if_mmv_mbmode_vlc[mbmodetab];
1176 v->mbmode_vlc = &ff_vc1_if_1mv_mbmode_vlc[mbmodetab];
1180 av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
1181 vop_dquant_decoding(v);
1184 v->ttfrm = 0; //FIXME Is that so ?
1185 if (v->vstransform) {
1186 v->ttmbf = get_bits1(gb);
1188 v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
1195 case AV_PICTURE_TYPE_B:
1196 if (v->fcm == ILACE_FRAME) {
1197 v->bfraction_lut_index = get_vlc2(gb, ff_vc1_bfraction_vlc.table, VC1_BFRACTION_VLC_BITS, 1);
1198 v->bfraction = ff_vc1_bfraction_lut[v->bfraction_lut_index];
1199 if (v->bfraction == 0) {
1204 v->mvrange = get_unary(gb, 0, 3);
1207 v->k_x = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13
1208 v->k_y = v->mvrange + 8; //k_y can be 8 9 10 11
1209 v->range_x = 1 << (v->k_x - 1);
1210 v->range_y = 1 << (v->k_y - 1);
1214 else if (v->pq < 13)
1219 if (v->field_mode) {
1221 av_log(v->s.avctx, AV_LOG_DEBUG, "B Fields\n");
1222 if (v->extended_dmv)
1223 v->dmvrange = get_unary(gb, 0, 3);
1224 mvmode = get_unary(gb, 1, 3);
1225 lowquant = (v->pq > 12) ? 0 : 1;
1226 v->mv_mode = ff_vc1_mv_pmode_table2[lowquant][mvmode];
1227 v->qs_last = v->s.quarter_sample;
1228 v->s.quarter_sample = (v->mv_mode == MV_PMODE_1MV || v->mv_mode == MV_PMODE_MIXED_MV);
1229 v->s.mspel = !(v->mv_mode == MV_PMODE_1MV_HPEL_BILIN || v->mv_mode == MV_PMODE_1MV_HPEL);
1230 status = bitplane_decoding(v->forward_mb_plane, &v->fmb_is_raw, v);
1233 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Forward Type plane encoding: "
1234 "Imode: %i, Invert: %i\n", status>>1, status&1);
1235 mbmodetab = get_bits(gb, 3);
1236 if (v->mv_mode == MV_PMODE_MIXED_MV)
1237 v->mbmode_vlc = &ff_vc1_if_mmv_mbmode_vlc[mbmodetab];
1239 v->mbmode_vlc = &ff_vc1_if_1mv_mbmode_vlc[mbmodetab];
1240 imvtab = get_bits(gb, 3);
1241 v->imv_vlc = &ff_vc1_2ref_mvdata_vlc[imvtab];
1242 icbptab = get_bits(gb, 3);
1243 v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[icbptab];
1244 if (v->mv_mode == MV_PMODE_MIXED_MV) {
1245 fourmvbptab = get_bits(gb, 2);
1246 v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[fourmvbptab];
1248 v->numref = 1; // interlaced field B pictures are always 2-ref
1249 } else if (v->fcm == ILACE_FRAME) {
1250 if (v->extended_dmv)
1251 v->dmvrange = get_unary(gb, 0, 3);
1252 if (get_bits1(gb)) /* intcomp - present but shall always be 0 */
1253 av_log(v->s.avctx, AV_LOG_WARNING, "Intensity compensation set for B picture\n");
1255 v->mv_mode = MV_PMODE_1MV;
1256 v->fourmvswitch = 0;
1257 v->qs_last = v->s.quarter_sample;
1258 v->s.quarter_sample = 1;
1260 status = bitplane_decoding(v->direct_mb_plane, &v->dmb_is_raw, v);
1263 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Direct Type plane encoding: "
1264 "Imode: %i, Invert: %i\n", status>>1, status&1);
1265 status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
1268 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
1269 "Imode: %i, Invert: %i\n", status>>1, status&1);
1270 mbmodetab = get_bits(gb, 2);
1271 v->mbmode_vlc = &ff_vc1_intfr_non4mv_mbmode_vlc[mbmodetab];
1272 imvtab = get_bits(gb, 2);
1273 v->imv_vlc = &ff_vc1_1ref_mvdata_vlc[imvtab];
1274 // interlaced p/b-picture cbpcy range is [1, 63]
1275 icbptab = get_bits(gb, 3);
1276 v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[icbptab];
1277 twomvbptab = get_bits(gb, 2);
1278 v->twomvbp_vlc = &ff_vc1_2mv_block_pattern_vlc[twomvbptab];
1279 fourmvbptab = get_bits(gb, 2);
1280 v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[fourmvbptab];
1282 v->mv_mode = get_bits1(gb) ? MV_PMODE_1MV : MV_PMODE_1MV_HPEL_BILIN;
1283 v->qs_last = v->s.quarter_sample;
1284 v->s.quarter_sample = (v->mv_mode == MV_PMODE_1MV);
1285 v->s.mspel = v->s.quarter_sample;
1286 status = bitplane_decoding(v->direct_mb_plane, &v->dmb_is_raw, v);
1289 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Direct Type plane encoding: "
1290 "Imode: %i, Invert: %i\n", status>>1, status&1);
1291 status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
1294 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
1295 "Imode: %i, Invert: %i\n", status>>1, status&1);
1296 v->s.mv_table_index = get_bits(gb, 2);
1297 v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];
1301 av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
1302 vop_dquant_decoding(v);
1306 if (v->vstransform) {
1307 v->ttmbf = get_bits1(gb);
1309 v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
1318 if (v->fcm != PROGRESSIVE && !v->s.quarter_sample) {
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);
1329 v->s.dc_table_index = get_bits1(gb);
1330 if ((v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI)
1332 av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
1333 vop_dquant_decoding(v);
1337 if (v->s.pict_type == AV_PICTURE_TYPE_BI) {
1338 v->s.pict_type = AV_PICTURE_TYPE_B;
1344 static const uint32_t vc1_ac_tables[AC_MODES][186][2] = {
1346 { 0x0001, 2}, { 0x0005, 3}, { 0x000D, 4}, { 0x0012, 5}, { 0x000E, 6}, { 0x0015, 7},
1347 { 0x0013, 8}, { 0x003F, 8}, { 0x004B, 9}, { 0x011F, 9}, { 0x00B8, 10}, { 0x03E3, 10},
1348 { 0x0172, 11}, { 0x024D, 12}, { 0x03DA, 12}, { 0x02DD, 13}, { 0x1F55, 13}, { 0x05B9, 14},
1349 { 0x3EAE, 14}, { 0x0000, 4}, { 0x0010, 5}, { 0x0008, 7}, { 0x0020, 8}, { 0x0029, 9},
1350 { 0x01F4, 9}, { 0x0233, 10}, { 0x01E0, 11}, { 0x012A, 12}, { 0x03DD, 12}, { 0x050A, 13},
1351 { 0x1F29, 13}, { 0x0A42, 14}, { 0x1272, 15}, { 0x1737, 15}, { 0x0003, 5}, { 0x0011, 7},
1352 { 0x00C4, 8}, { 0x004B, 10}, { 0x00B4, 11}, { 0x07D4, 11}, { 0x0345, 12}, { 0x02D7, 13},
1353 { 0x07BF, 13}, { 0x0938, 14}, { 0x0BBB, 14}, { 0x095E, 15}, { 0x0013, 5}, { 0x0078, 7},
1354 { 0x0069, 9}, { 0x0232, 10}, { 0x0461, 11}, { 0x03EC, 12}, { 0x0520, 13}, { 0x1F2A, 13},
1355 { 0x3E50, 14}, { 0x3E51, 14}, { 0x1486, 15}, { 0x000C, 6}, { 0x0024, 9}, { 0x0094, 11},
1356 { 0x08C0, 12}, { 0x0F09, 14}, { 0x1EF0, 15}, { 0x003D, 6}, { 0x0053, 9}, { 0x01A0, 11},
1357 { 0x02D6, 13}, { 0x0F08, 14}, { 0x0013, 7}, { 0x007C, 9}, { 0x07C1, 11}, { 0x04AC, 14},
1358 { 0x001B, 7}, { 0x00A0, 10}, { 0x0344, 12}, { 0x0F79, 14}, { 0x0079, 7}, { 0x03E1, 10},
1359 { 0x02D4, 13}, { 0x2306, 14}, { 0x0021, 8}, { 0x023C, 10}, { 0x0FAE, 12}, { 0x23DE, 14},
1360 { 0x0035, 8}, { 0x0175, 11}, { 0x07B3, 13}, { 0x00C5, 8}, { 0x0174, 11}, { 0x0785, 13},
1361 { 0x0048, 9}, { 0x01A3, 11}, { 0x049E, 13}, { 0x002C, 9}, { 0x00FA, 10}, { 0x07D6, 11},
1362 { 0x0092, 10}, { 0x05CC, 13}, { 0x1EF1, 15}, { 0x00A3, 10}, { 0x03ED, 12}, { 0x093E, 14},
1363 { 0x01E2, 11}, { 0x1273, 15}, { 0x07C4, 11}, { 0x1487, 15}, { 0x0291, 12}, { 0x0293, 12},
1364 { 0x0F8A, 12}, { 0x0509, 13}, { 0x0508, 13}, { 0x078D, 13}, { 0x07BE, 13}, { 0x078C, 13},
1365 { 0x04AE, 14}, { 0x0BBA, 14}, { 0x2307, 14}, { 0x0B9A, 14}, { 0x1736, 15}, { 0x000E, 4},
1366 { 0x0045, 7}, { 0x01F3, 9}, { 0x047A, 11}, { 0x05DC, 13}, { 0x23DF, 14}, { 0x0019, 5},
1367 { 0x0028, 9}, { 0x0176, 11}, { 0x049D, 13}, { 0x23DD, 14}, { 0x0030, 6}, { 0x00A2, 10},
1368 { 0x02EF, 12}, { 0x05B8, 14}, { 0x003F, 6}, { 0x00A5, 10}, { 0x03DB, 12}, { 0x093F, 14},
1369 { 0x0044, 7}, { 0x07CB, 11}, { 0x095F, 15}, { 0x0063, 7}, { 0x03C3, 12}, { 0x0015, 8},
1370 { 0x08F6, 12}, { 0x0017, 8}, { 0x0498, 13}, { 0x002C, 8}, { 0x07B2, 13}, { 0x002F, 8},
1371 { 0x1F54, 13}, { 0x008D, 8}, { 0x07BD, 13}, { 0x008E, 8}, { 0x1182, 13}, { 0x00FB, 8},
1372 { 0x050B, 13}, { 0x002D, 8}, { 0x07C0, 11}, { 0x0079, 9}, { 0x1F5F, 13}, { 0x007A, 9},
1373 { 0x1F56, 13}, { 0x0231, 10}, { 0x03E4, 10}, { 0x01A1, 11}, { 0x0143, 11}, { 0x01F7, 11},
1374 { 0x016F, 12}, { 0x0292, 12}, { 0x02E7, 12}, { 0x016C, 12}, { 0x016D, 12}, { 0x03DC, 12},
1375 { 0x0F8B, 12}, { 0x0499, 13}, { 0x03D8, 12}, { 0x078E, 13}, { 0x02D5, 13}, { 0x1F5E, 13},
1376 { 0x1F2B, 13}, { 0x078F, 13}, { 0x04AD, 14}, { 0x3EAF, 14}, { 0x23DC, 14}, { 0x004A, 9}
1379 { 0x0000, 3}, { 0x0003, 4}, { 0x000B, 5}, { 0x0014, 6}, { 0x003F, 6}, { 0x005D, 7},
1380 { 0x00A2, 8}, { 0x00AC, 9}, { 0x016E, 9}, { 0x020A, 10}, { 0x02E2, 10}, { 0x0432, 11},
1381 { 0x05C9, 11}, { 0x0827, 12}, { 0x0B54, 12}, { 0x04E6, 13}, { 0x105F, 13}, { 0x172A, 13},
1382 { 0x20B2, 14}, { 0x2D4E, 14}, { 0x39F0, 14}, { 0x4175, 15}, { 0x5A9E, 15}, { 0x0004, 4},
1383 { 0x001E, 5}, { 0x0042, 7}, { 0x00B6, 8}, { 0x0173, 9}, { 0x0395, 10}, { 0x072E, 11},
1384 { 0x0B94, 12}, { 0x16A4, 13}, { 0x20B3, 14}, { 0x2E45, 14}, { 0x0005, 5}, { 0x0040, 7},
1385 { 0x0049, 9}, { 0x028F, 10}, { 0x05CB, 11}, { 0x048A, 13}, { 0x09DD, 14}, { 0x73E2, 15},
1386 { 0x0018, 5}, { 0x0025, 8}, { 0x008A, 10}, { 0x051B, 11}, { 0x0E5F, 12}, { 0x09C9, 14},
1387 { 0x139C, 15}, { 0x0029, 6}, { 0x004F, 9}, { 0x0412, 11}, { 0x048D, 13}, { 0x2E41, 14},
1388 { 0x0038, 6}, { 0x010E, 9}, { 0x05A8, 11}, { 0x105C, 13}, { 0x39F2, 14}, { 0x0058, 7},
1389 { 0x021F, 10}, { 0x0E7E, 12}, { 0x39FF, 14}, { 0x0023, 8}, { 0x02E3, 10}, { 0x04E5, 13},
1390 { 0x2E40, 14}, { 0x00A1, 8}, { 0x05BE, 11}, { 0x09C8, 14}, { 0x0083, 8}, { 0x013A, 11},
1391 { 0x1721, 13}, { 0x0044, 9}, { 0x0276, 12}, { 0x39F6, 14}, { 0x008B, 10}, { 0x04EF, 13},
1392 { 0x5A9B, 15}, { 0x0208, 10}, { 0x1CFE, 13}, { 0x0399, 10}, { 0x1CB4, 13}, { 0x039E, 10},
1393 { 0x39F3, 14}, { 0x05AB, 11}, { 0x73E3, 15}, { 0x0737, 11}, { 0x5A9F, 15}, { 0x082D, 12},
1394 { 0x0E69, 12}, { 0x0E68, 12}, { 0x0433, 11}, { 0x0B7B, 12}, { 0x2DF8, 14}, { 0x2E56, 14},
1395 { 0x2E57, 14}, { 0x39F7, 14}, { 0x51A5, 15}, { 0x0003, 3}, { 0x002A, 6}, { 0x00E4, 8},
1396 { 0x028E, 10}, { 0x0735, 11}, { 0x1058, 13}, { 0x1CFA, 13}, { 0x2DF9, 14}, { 0x4174, 15},
1397 { 0x0009, 4}, { 0x0054, 8}, { 0x0398, 10}, { 0x048B, 13}, { 0x139D, 15}, { 0x000D, 4},
1398 { 0x00AD, 9}, { 0x0826, 12}, { 0x2D4C, 14}, { 0x0011, 5}, { 0x016B, 9}, { 0x0B7F, 12},
1399 { 0x51A4, 15}, { 0x0019, 5}, { 0x021B, 10}, { 0x16FD, 13}, { 0x001D, 5}, { 0x0394, 10},
1400 { 0x28D3, 14}, { 0x002B, 6}, { 0x05BC, 11}, { 0x5A9A, 15}, { 0x002F, 6}, { 0x0247, 12},
1401 { 0x0010, 7}, { 0x0A35, 12}, { 0x003E, 6}, { 0x0B7A, 12}, { 0x0059, 7}, { 0x105E, 13},
1402 { 0x0026, 8}, { 0x09CF, 14}, { 0x0055, 8}, { 0x1CB5, 13}, { 0x0057, 8}, { 0x0E5B, 12},
1403 { 0x00A0, 8}, { 0x1468, 13}, { 0x0170, 9}, { 0x0090, 10}, { 0x01CE, 9}, { 0x021A, 10},
1404 { 0x0218, 10}, { 0x0168, 9}, { 0x021E, 10}, { 0x0244, 12}, { 0x0736, 11}, { 0x0138, 11},
1405 { 0x0519, 11}, { 0x0E5E, 12}, { 0x072C, 11}, { 0x0B55, 12}, { 0x09DC, 14}, { 0x20BB, 14},
1406 { 0x048C, 13}, { 0x1723, 13}, { 0x2E44, 14}, { 0x16A5, 13}, { 0x0518, 11}, { 0x39FE, 14},
1410 { 0x0001, 2}, { 0x0006, 3}, { 0x000F, 4}, { 0x0016, 5}, { 0x0020, 6}, { 0x0018, 7},
1411 { 0x0008, 8}, { 0x009A, 8}, { 0x0056, 9}, { 0x013E, 9}, { 0x00F0, 10}, { 0x03A5, 10},
1412 { 0x0077, 11}, { 0x01EF, 11}, { 0x009A, 12}, { 0x005D, 13}, { 0x0001, 4}, { 0x0011, 5},
1413 { 0x0002, 7}, { 0x000B, 8}, { 0x0012, 9}, { 0x01D6, 9}, { 0x027E, 10}, { 0x0191, 11},
1414 { 0x00EA, 12}, { 0x03DC, 12}, { 0x013B, 13}, { 0x0004, 5}, { 0x0014, 7}, { 0x009E, 8},
1415 { 0x0009, 10}, { 0x01AC, 11}, { 0x01E2, 11}, { 0x03CA, 12}, { 0x005F, 13}, { 0x0017, 5},
1416 { 0x004E, 7}, { 0x005E, 9}, { 0x00F3, 10}, { 0x01AD, 11}, { 0x00EC, 12}, { 0x05F0, 13},
1417 { 0x000E, 6}, { 0x00E1, 8}, { 0x03A4, 10}, { 0x009C, 12}, { 0x013D, 13}, { 0x003B, 6},
1418 { 0x001C, 9}, { 0x0014, 11}, { 0x09BE, 12}, { 0x0006, 7}, { 0x007A, 9}, { 0x0190, 11},
1419 { 0x0137, 13}, { 0x001B, 7}, { 0x0008, 10}, { 0x075C, 11}, { 0x0071, 7}, { 0x00D7, 10},
1420 { 0x09BF, 12}, { 0x0007, 8}, { 0x00AF, 10}, { 0x04CC, 11}, { 0x0034, 8}, { 0x0265, 10},
1421 { 0x009F, 12}, { 0x00E0, 8}, { 0x0016, 11}, { 0x0327, 12}, { 0x0015, 9}, { 0x017D, 11},
1422 { 0x0EBB, 12}, { 0x0014, 9}, { 0x00F6, 10}, { 0x01E4, 11}, { 0x00CB, 10}, { 0x099D, 12},
1423 { 0x00CA, 10}, { 0x02FC, 12}, { 0x017F, 11}, { 0x04CD, 11}, { 0x02FD, 12}, { 0x04FE, 11},
1424 { 0x013A, 13}, { 0x000A, 4}, { 0x0042, 7}, { 0x01D3, 9}, { 0x04DD, 11}, { 0x0012, 5},
1425 { 0x00E8, 8}, { 0x004C, 11}, { 0x0136, 13}, { 0x0039, 6}, { 0x0264, 10}, { 0x0EBA, 12},
1426 { 0x0000, 7}, { 0x00AE, 10}, { 0x099C, 12}, { 0x001F, 7}, { 0x04DE, 11}, { 0x0043, 7},
1427 { 0x04DC, 11}, { 0x0003, 8}, { 0x03CB, 12}, { 0x0006, 8}, { 0x099E, 12}, { 0x002A, 8},
1428 { 0x05F1, 13}, { 0x000F, 8}, { 0x09FE, 12}, { 0x0033, 8}, { 0x09FF, 12}, { 0x0098, 8},
1429 { 0x099F, 12}, { 0x00EA, 8}, { 0x013C, 13}, { 0x002E, 8}, { 0x0192, 11}, { 0x0136, 9},
1430 { 0x006A, 9}, { 0x0015, 11}, { 0x03AF, 10}, { 0x01E3, 11}, { 0x0074, 11}, { 0x00EB, 12},
1431 { 0x02F9, 12}, { 0x005C, 13}, { 0x00ED, 12}, { 0x03DD, 12}, { 0x0326, 12}, { 0x005E, 13},
1435 { 0x0004, 3}, { 0x0014, 5}, { 0x0017, 7}, { 0x007F, 8}, { 0x0154, 9}, { 0x01F2, 10},
1436 { 0x00BF, 11}, { 0x0065, 12}, { 0x0AAA, 12}, { 0x0630, 13}, { 0x1597, 13}, { 0x03B7, 14},
1437 { 0x2B22, 14}, { 0x0BE6, 15}, { 0x000B, 4}, { 0x0037, 7}, { 0x0062, 9}, { 0x0007, 11},
1438 { 0x0166, 12}, { 0x00CE, 13}, { 0x1590, 13}, { 0x05F6, 14}, { 0x0BE7, 15}, { 0x0007, 5},
1439 { 0x006D, 8}, { 0x0003, 11}, { 0x031F, 12}, { 0x05F2, 14}, { 0x0002, 6}, { 0x0061, 9},
1440 { 0x0055, 12}, { 0x01DF, 14}, { 0x001A, 6}, { 0x001E, 10}, { 0x0AC9, 12}, { 0x2B23, 14},
1441 { 0x001E, 6}, { 0x001F, 10}, { 0x0AC3, 12}, { 0x2B2B, 14}, { 0x0006, 7}, { 0x0004, 11},
1442 { 0x02F8, 13}, { 0x0019, 7}, { 0x0006, 11}, { 0x063D, 13}, { 0x0057, 7}, { 0x0182, 11},
1443 { 0x2AA2, 14}, { 0x0004, 8}, { 0x0180, 11}, { 0x059C, 14}, { 0x007D, 8}, { 0x0164, 12},
1444 { 0x076D, 15}, { 0x0002, 9}, { 0x018D, 11}, { 0x1581, 13}, { 0x00AD, 8}, { 0x0060, 12},
1445 { 0x0C67, 14}, { 0x001C, 9}, { 0x00EE, 13}, { 0x0003, 9}, { 0x02CF, 13}, { 0x00D9, 9},
1446 { 0x1580, 13}, { 0x0002, 11}, { 0x0183, 11}, { 0x0057, 12}, { 0x0061, 12}, { 0x0031, 11},
1447 { 0x0066, 12}, { 0x0631, 13}, { 0x0632, 13}, { 0x00AC, 13}, { 0x031D, 12}, { 0x0076, 12},
1448 { 0x003A, 11}, { 0x0165, 12}, { 0x0C66, 14}, { 0x0003, 2}, { 0x0054, 7}, { 0x02AB, 10},
1449 { 0x0016, 13}, { 0x05F7, 14}, { 0x0005, 4}, { 0x00F8, 9}, { 0x0AA9, 12}, { 0x005F, 15},
1450 { 0x0004, 4}, { 0x001C, 10}, { 0x1550, 13}, { 0x0004, 5}, { 0x0077, 11}, { 0x076C, 15},
1451 { 0x000E, 5}, { 0x000A, 12}, { 0x000C, 5}, { 0x0562, 11}, { 0x0004, 6}, { 0x031C, 12},
1452 { 0x0006, 6}, { 0x00C8, 13}, { 0x000D, 6}, { 0x01DA, 13}, { 0x0007, 6}, { 0x00C9, 13},
1453 { 0x0001, 7}, { 0x002E, 14}, { 0x0014, 7}, { 0x1596, 13}, { 0x000A, 7}, { 0x0AC2, 12},
1454 { 0x0016, 7}, { 0x015B, 14}, { 0x0015, 7}, { 0x015A, 14}, { 0x000F, 8}, { 0x005E, 15},
1455 { 0x007E, 8}, { 0x00AB, 8}, { 0x002D, 9}, { 0x00D8, 9}, { 0x000B, 9}, { 0x0014, 10},
1456 { 0x02B3, 10}, { 0x01F3, 10}, { 0x003A, 10}, { 0x0000, 10}, { 0x0058, 10}, { 0x002E, 9},
1457 { 0x005E, 10}, { 0x0563, 11}, { 0x00EC, 12}, { 0x0054, 12}, { 0x0AC1, 12}, { 0x1556, 13},
1458 { 0x02FA, 13}, { 0x0181, 11}, { 0x1557, 13}, { 0x059D, 14}, { 0x2AA3, 14}, { 0x2B2A, 14},
1459 { 0x01DE, 14}, { 0x063C, 13}, { 0x00CF, 13}, { 0x1594, 13}, { 0x000D, 9}
1462 { 0x0002, 2}, { 0x0006, 3}, { 0x000F, 4}, { 0x000D, 5}, { 0x000C, 5}, { 0x0015, 6},
1463 { 0x0013, 6}, { 0x0012, 6}, { 0x0017, 7}, { 0x001F, 8}, { 0x001E, 8}, { 0x001D, 8},
1464 { 0x0025, 9}, { 0x0024, 9}, { 0x0023, 9}, { 0x0021, 9}, { 0x0021, 10}, { 0x0020, 10},
1465 { 0x000F, 10}, { 0x000E, 10}, { 0x0007, 11}, { 0x0006, 11}, { 0x0020, 11}, { 0x0021, 11},
1466 { 0x0050, 12}, { 0x0051, 12}, { 0x0052, 12}, { 0x000E, 4}, { 0x0014, 6}, { 0x0016, 7},
1467 { 0x001C, 8}, { 0x0020, 9}, { 0x001F, 9}, { 0x000D, 10}, { 0x0022, 11}, { 0x0053, 12},
1468 { 0x0055, 12}, { 0x000B, 5}, { 0x0015, 7}, { 0x001E, 9}, { 0x000C, 10}, { 0x0056, 12},
1469 { 0x0011, 6}, { 0x001B, 8}, { 0x001D, 9}, { 0x000B, 10}, { 0x0010, 6}, { 0x0022, 9},
1470 { 0x000A, 10}, { 0x000D, 6}, { 0x001C, 9}, { 0x0008, 10}, { 0x0012, 7}, { 0x001B, 9},
1471 { 0x0054, 12}, { 0x0014, 7}, { 0x001A, 9}, { 0x0057, 12}, { 0x0019, 8}, { 0x0009, 10},
1472 { 0x0018, 8}, { 0x0023, 11}, { 0x0017, 8}, { 0x0019, 9}, { 0x0018, 9}, { 0x0007, 10},
1473 { 0x0058, 12}, { 0x0007, 4}, { 0x000C, 6}, { 0x0016, 8}, { 0x0017, 9}, { 0x0006, 10},
1474 { 0x0005, 11}, { 0x0004, 11}, { 0x0059, 12}, { 0x000F, 6}, { 0x0016, 9}, { 0x0005, 10},
1475 { 0x000E, 6}, { 0x0004, 10}, { 0x0011, 7}, { 0x0024, 11}, { 0x0010, 7}, { 0x0025, 11},
1476 { 0x0013, 7}, { 0x005A, 12}, { 0x0015, 8}, { 0x005B, 12}, { 0x0014, 8}, { 0x0013, 8},
1477 { 0x001A, 8}, { 0x0015, 9}, { 0x0014, 9}, { 0x0013, 9}, { 0x0012, 9}, { 0x0011, 9},
1478 { 0x0026, 11}, { 0x0027, 11}, { 0x005C, 12}, { 0x005D, 12}, { 0x005E, 12}, { 0x005F, 12},
1482 { 0x0002, 2}, { 0x000F, 4}, { 0x0015, 6}, { 0x0017, 7}, { 0x001F, 8}, { 0x0025, 9},
1483 { 0x0024, 9}, { 0x0021, 10}, { 0x0020, 10}, { 0x0007, 11}, { 0x0006, 11}, { 0x0020, 11},
1484 { 0x0006, 3}, { 0x0014, 6}, { 0x001E, 8}, { 0x000F, 10}, { 0x0021, 11}, { 0x0050, 12},
1485 { 0x000E, 4}, { 0x001D, 8}, { 0x000E, 10}, { 0x0051, 12}, { 0x000D, 5}, { 0x0023, 9},
1486 { 0x000D, 10}, { 0x000C, 5}, { 0x0022, 9}, { 0x0052, 12}, { 0x000B, 5}, { 0x000C, 10},
1487 { 0x0053, 12}, { 0x0013, 6}, { 0x000B, 10}, { 0x0054, 12}, { 0x0012, 6}, { 0x000A, 10},
1488 { 0x0011, 6}, { 0x0009, 10}, { 0x0010, 6}, { 0x0008, 10}, { 0x0016, 7}, { 0x0055, 12},
1489 { 0x0015, 7}, { 0x0014, 7}, { 0x001C, 8}, { 0x001B, 8}, { 0x0021, 9}, { 0x0020, 9},
1490 { 0x001F, 9}, { 0x001E, 9}, { 0x001D, 9}, { 0x001C, 9}, { 0x001B, 9}, { 0x001A, 9},
1491 { 0x0022, 11}, { 0x0023, 11}, { 0x0056, 12}, { 0x0057, 12}, { 0x0007, 4}, { 0x0019, 9},
1492 { 0x0005, 11}, { 0x000F, 6}, { 0x0004, 11}, { 0x000E, 6}, { 0x000D, 6}, { 0x000C, 6},
1493 { 0x0013, 7}, { 0x0012, 7}, { 0x0011, 7}, { 0x0010, 7}, { 0x001A, 8}, { 0x0019, 8},
1494 { 0x0018, 8}, { 0x0017, 8}, { 0x0016, 8}, { 0x0015, 8}, { 0x0014, 8}, { 0x0013, 8},
1495 { 0x0018, 9}, { 0x0017, 9}, { 0x0016, 9}, { 0x0015, 9}, { 0x0014, 9}, { 0x0013, 9},
1496 { 0x0012, 9}, { 0x0011, 9}, { 0x0007, 10}, { 0x0006, 10}, { 0x0005, 10}, { 0x0004, 10},
1497 { 0x0024, 11}, { 0x0025, 11}, { 0x0026, 11}, { 0x0027, 11}, { 0x0058, 12}, { 0x0059, 12},
1498 { 0x005A, 12}, { 0x005B, 12}, { 0x005C, 12}, { 0x005D, 12}, { 0x005E, 12}, { 0x005F, 12},
1502 { 0x0000, 2}, { 0x0003, 3}, { 0x000D, 4}, { 0x0005, 4}, { 0x001C, 5}, { 0x0016, 5},
1503 { 0x003F, 6}, { 0x003A, 6}, { 0x002E, 6}, { 0x0022, 6}, { 0x007B, 7}, { 0x0067, 7},
1504 { 0x005F, 7}, { 0x0047, 7}, { 0x0026, 7}, { 0x00EF, 8}, { 0x00CD, 8}, { 0x00C1, 8},
1505 { 0x00A9, 8}, { 0x004F, 8}, { 0x01F2, 9}, { 0x01DD, 9}, { 0x0199, 9}, { 0x0185, 9},
1506 { 0x015D, 9}, { 0x011B, 9}, { 0x03EF, 10}, { 0x03E1, 10}, { 0x03C8, 10}, { 0x0331, 10},
1507 { 0x0303, 10}, { 0x02F1, 10}, { 0x02A0, 10}, { 0x0233, 10}, { 0x0126, 10}, { 0x07C0, 11},
1508 { 0x076F, 11}, { 0x076C, 11}, { 0x0661, 11}, { 0x0604, 11}, { 0x0572, 11}, { 0x0551, 11},
1509 { 0x046A, 11}, { 0x0274, 11}, { 0x0F27, 12}, { 0x0F24, 12}, { 0x0EDB, 12}, { 0x0C8E, 12},
1510 { 0x0C0B, 12}, { 0x0C0A, 12}, { 0x0AE3, 12}, { 0x08D6, 12}, { 0x0490, 12}, { 0x0495, 12},
1511 { 0x1F19, 13}, { 0x1DB5, 13}, { 0x0009, 4}, { 0x0010, 5}, { 0x0029, 6}, { 0x0062, 7},
1512 { 0x00F3, 8}, { 0x00AD, 8}, { 0x01E5, 9}, { 0x0179, 9}, { 0x009C, 9}, { 0x03B1, 10},
1513 { 0x02AE, 10}, { 0x0127, 10}, { 0x076E, 11}, { 0x0570, 11}, { 0x0275, 11}, { 0x0F25, 12},
1514 { 0x0EC0, 12}, { 0x0AA0, 12}, { 0x08D7, 12}, { 0x1E4C, 13}, { 0x0008, 5}, { 0x0063, 7},
1515 { 0x00AF, 8}, { 0x017B, 9}, { 0x03B3, 10}, { 0x07DD, 11}, { 0x0640, 11}, { 0x0F8D, 12},
1516 { 0x0BC1, 12}, { 0x0491, 12}, { 0x0028, 6}, { 0x00C3, 8}, { 0x0151, 9}, { 0x02A1, 10},
1517 { 0x0573, 11}, { 0x0EC3, 12}, { 0x1F35, 13}, { 0x0065, 7}, { 0x01DA, 9}, { 0x02AF, 10},
1518 { 0x0277, 11}, { 0x08C9, 12}, { 0x1781, 13}, { 0x0025, 7}, { 0x0118, 9}, { 0x0646, 11},
1519 { 0x0AA6, 12}, { 0x1780, 13}, { 0x00C9, 8}, { 0x0321, 10}, { 0x0F9B, 12}, { 0x191E, 13},
1520 { 0x0048, 8}, { 0x07CC, 11}, { 0x0AA1, 12}, { 0x0180, 9}, { 0x0465, 11}, { 0x1905, 13},
1521 { 0x03E2, 10}, { 0x0EC1, 12}, { 0x3C9B, 14}, { 0x02F4, 10}, { 0x08C8, 12}, { 0x07C1, 11},
1522 { 0x0928, 13}, { 0x05E1, 11}, { 0x320D, 14}, { 0x0EC2, 12}, { 0x6418, 15}, { 0x1F34, 13},
1523 { 0x0078, 7}, { 0x0155, 9}, { 0x0552, 11}, { 0x191F, 13}, { 0x00FA, 8}, { 0x07DC, 11},
1524 { 0x1907, 13}, { 0x00AC, 8}, { 0x0249, 11}, { 0x13B1, 14}, { 0x01F6, 9}, { 0x0AE2, 12},
1525 { 0x01DC, 9}, { 0x04ED, 12}, { 0x0184, 9}, { 0x1904, 13}, { 0x0156, 9}, { 0x09D9, 13},
1526 { 0x03E7, 10}, { 0x0929, 13}, { 0x03B2, 10}, { 0x3B68, 14}, { 0x02F5, 10}, { 0x13B0, 14},
1527 { 0x0322, 10}, { 0x3B69, 14}, { 0x0234, 10}, { 0x7935, 15}, { 0x07C7, 11}, { 0xC833, 16},
1528 { 0x0660, 11}, { 0x7934, 15}, { 0x024B, 11}, { 0xC832, 16}, { 0x0AA7, 12}, { 0x1F18, 13},
1532 { 0x0002, 2}, { 0x0000, 3}, { 0x001E, 5}, { 0x0004, 5}, { 0x0012, 6}, { 0x0070, 7},
1533 { 0x001A, 7}, { 0x005F, 8}, { 0x0047, 8}, { 0x01D3, 9}, { 0x00B5, 9}, { 0x0057, 9},
1534 { 0x03B5, 10}, { 0x016D, 10}, { 0x0162, 10}, { 0x07CE, 11}, { 0x0719, 11}, { 0x0691, 11},
1535 { 0x02C6, 11}, { 0x0156, 11}, { 0x0F92, 12}, { 0x0D2E, 12}, { 0x0D20, 12}, { 0x059E, 12},
1536 { 0x0468, 12}, { 0x02A6, 12}, { 0x1DA2, 13}, { 0x1C60, 13}, { 0x1A43, 13}, { 0x0B1D, 13},
1537 { 0x08C0, 13}, { 0x055D, 13}, { 0x0003, 3}, { 0x000A, 5}, { 0x0077, 7}, { 0x00E5, 8},
1538 { 0x01D9, 9}, { 0x03E5, 10}, { 0x0166, 10}, { 0x0694, 11}, { 0x0152, 11}, { 0x059F, 12},
1539 { 0x1F3C, 13}, { 0x1A4B, 13}, { 0x055E, 13}, { 0x000C, 4}, { 0x007D, 7}, { 0x0044, 8},
1540 { 0x03E0, 10}, { 0x0769, 11}, { 0x0E31, 12}, { 0x1F26, 13}, { 0x055C, 13}, { 0x001B, 5},
1541 { 0x00E2, 8}, { 0x03A5, 10}, { 0x02C9, 11}, { 0x1F23, 13}, { 0x3B47, 14}, { 0x0007, 5},
1542 { 0x01D8, 9}, { 0x02D8, 11}, { 0x1F27, 13}, { 0x3494, 14}, { 0x0035, 6}, { 0x03E1, 10},
1543 { 0x059C, 12}, { 0x38C3, 14}, { 0x000C, 6}, { 0x0165, 10}, { 0x1D23, 13}, { 0x1638, 14},
1544 { 0x0068, 7}, { 0x0693, 11}, { 0x3A45, 14}, { 0x0020, 7}, { 0x0F90, 12}, { 0x7CF6, 15},
1545 { 0x00E8, 8}, { 0x058F, 12}, { 0x2CEF, 15}, { 0x0045, 8}, { 0x0B3A, 13}, { 0x01F1, 9},
1546 { 0x3B46, 14}, { 0x01A7, 9}, { 0x1676, 14}, { 0x0056, 9}, { 0x692A, 15}, { 0x038D, 10},
1547 { 0xE309, 16}, { 0x00AA, 10}, { 0x1C611, 17}, { 0x02DF, 11}, { 0xB3B9, 17}, { 0x02C8, 11},
1548 { 0x38C20, 18}, { 0x01B0, 11}, { 0x16390, 18}, { 0x0F9F, 12}, { 0x16771, 18}, { 0x0ED0, 12},
1549 { 0x71843, 19}, { 0x0D2A, 12}, { 0xF9E8C, 20}, { 0x0461, 12}, { 0xF9E8E, 20}, { 0x0B67, 13},
1550 { 0x055F, 13}, { 0x003F, 6}, { 0x006D, 9}, { 0x0E90, 12}, { 0x054E, 13}, { 0x0013, 6},
1551 { 0x0119, 10}, { 0x0B66, 13}, { 0x000B, 6}, { 0x0235, 11}, { 0x7CF5, 15}, { 0x0075, 7},
1552 { 0x0D24, 12}, { 0xF9E9, 16}, { 0x002E, 7}, { 0x1F22, 13}, { 0x0021, 7}, { 0x054F, 13},
1553 { 0x0014, 7}, { 0x3A44, 14}, { 0x00E4, 8}, { 0x7CF7, 15}, { 0x005E, 8}, { 0x7185, 15},
1554 { 0x0037, 8}, { 0x2C73, 15}, { 0x01DB, 9}, { 0x59DD, 16}, { 0x01C7, 9}, { 0x692B, 15},
1555 { 0x01A6, 9}, { 0x58E5, 16}, { 0x00B4, 9}, { 0x1F3D0, 17}, { 0x00B0, 9}, { 0xB1C9, 17},
1556 { 0x03E6, 10}, { 0x16770, 18}, { 0x016E, 10}, { 0x3E7A2, 18}, { 0x011B, 10}, { 0xF9E8D, 20},
1557 { 0x00D9, 10}, { 0xF9E8F, 20}, { 0x00A8, 10}, { 0x2C723, 19}, { 0x0749, 11}, { 0xE3084, 20},
1558 { 0x0696, 11}, { 0x58E45, 20}, { 0x02DE, 11}, { 0xB1C88, 21}, { 0x0231, 11}, { 0x1C610A, 21},
1559 { 0x01B1, 11}, { 0x71842D, 23}, { 0x0D2B, 12}, { 0x38C217, 22}, { 0x0D2F, 12}, { 0x163913, 22},
1560 { 0x05B2, 12}, { 0x163912, 22}, { 0x0469, 12}, { 0x71842C, 23}, { 0x1A42, 13}, { 0x08C1, 13},
1565 static const uint16_t vlc_offs[] = {
1566 0, 520, 552, 616, 1128, 1160, 1224, 1740, 1772, 1836, 1900, 2436,
1567 2986, 3050, 3610, 4154, 4218, 4746, 5326, 5390, 5902, 6554, 7658, 8342,
1568 9304, 9988, 10630, 11234, 12174, 13006, 13560, 14232, 14786, 15432, 16350, 17522,
1569 20372, 21818, 22330, 22394, 23166, 23678, 23742, 24820, 25332, 25396, 26460, 26980,
1570 27048, 27592, 27600, 27608, 27616, 27624, 28224, 28258, 28290, 28802, 28834, 28866,
1571 29378, 29412, 29444, 29960, 29994, 30026, 30538, 30572, 30604, 31120, 31154, 31186,
1572 31714, 31746, 31778, 32306, 32340, 32372
1576 * Init VC-1 specific tables and VC1Context members
1577 * @param v The VC1Context to initialize
1580 av_cold int ff_vc1_init_common(VC1Context *v)
1582 static int done = 0;
1584 static VLC_TYPE vlc_table[32372][2];
1586 v->hrd_rate = v->hrd_buffer = NULL;
1590 INIT_VLC_STATIC(&ff_vc1_bfraction_vlc, VC1_BFRACTION_VLC_BITS, 23,
1591 ff_vc1_bfraction_bits, 1, 1,
1592 ff_vc1_bfraction_codes, 1, 1, 1 << VC1_BFRACTION_VLC_BITS);
1593 INIT_VLC_STATIC(&ff_vc1_norm2_vlc, VC1_NORM2_VLC_BITS, 4,
1594 ff_vc1_norm2_bits, 1, 1,
1595 ff_vc1_norm2_codes, 1, 1, 1 << VC1_NORM2_VLC_BITS);
1596 INIT_VLC_STATIC(&ff_vc1_norm6_vlc, VC1_NORM6_VLC_BITS, 64,
1597 ff_vc1_norm6_bits, 1, 1,
1598 ff_vc1_norm6_codes, 2, 2, 556);
1599 INIT_VLC_STATIC(&ff_vc1_imode_vlc, VC1_IMODE_VLC_BITS, 7,
1600 ff_vc1_imode_bits, 1, 1,
1601 ff_vc1_imode_codes, 1, 1, 1 << VC1_IMODE_VLC_BITS);
1602 for (i = 0; i < 3; i++) {
1603 ff_vc1_ttmb_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 0]];
1604 ff_vc1_ttmb_vlc[i].table_allocated = vlc_offs[i * 3 + 1] - vlc_offs[i * 3 + 0];
1605 init_vlc(&ff_vc1_ttmb_vlc[i], VC1_TTMB_VLC_BITS, 16,
1606 ff_vc1_ttmb_bits[i], 1, 1,
1607 ff_vc1_ttmb_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
1608 ff_vc1_ttblk_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 1]];
1609 ff_vc1_ttblk_vlc[i].table_allocated = vlc_offs[i * 3 + 2] - vlc_offs[i * 3 + 1];
1610 init_vlc(&ff_vc1_ttblk_vlc[i], VC1_TTBLK_VLC_BITS, 8,
1611 ff_vc1_ttblk_bits[i], 1, 1,
1612 ff_vc1_ttblk_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1613 ff_vc1_subblkpat_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 2]];
1614 ff_vc1_subblkpat_vlc[i].table_allocated = vlc_offs[i * 3 + 3] - vlc_offs[i * 3 + 2];
1615 init_vlc(&ff_vc1_subblkpat_vlc[i], VC1_SUBBLKPAT_VLC_BITS, 15,
1616 ff_vc1_subblkpat_bits[i], 1, 1,
1617 ff_vc1_subblkpat_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1619 for (i = 0; i < 4; i++) {
1620 ff_vc1_4mv_block_pattern_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 9]];
1621 ff_vc1_4mv_block_pattern_vlc[i].table_allocated = vlc_offs[i * 3 + 10] - vlc_offs[i * 3 + 9];
1622 init_vlc(&ff_vc1_4mv_block_pattern_vlc[i], VC1_4MV_BLOCK_PATTERN_VLC_BITS, 16,
1623 ff_vc1_4mv_block_pattern_bits[i], 1, 1,
1624 ff_vc1_4mv_block_pattern_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1625 ff_vc1_cbpcy_p_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 10]];
1626 ff_vc1_cbpcy_p_vlc[i].table_allocated = vlc_offs[i * 3 + 11] - vlc_offs[i * 3 + 10];
1627 init_vlc(&ff_vc1_cbpcy_p_vlc[i], VC1_CBPCY_P_VLC_BITS, 64,
1628 ff_vc1_cbpcy_p_bits[i], 1, 1,
1629 ff_vc1_cbpcy_p_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
1630 ff_vc1_mv_diff_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 11]];
1631 ff_vc1_mv_diff_vlc[i].table_allocated = vlc_offs[i * 3 + 12] - vlc_offs[i * 3 + 11];
1632 init_vlc(&ff_vc1_mv_diff_vlc[i], VC1_MV_DIFF_VLC_BITS, 73,
1633 ff_vc1_mv_diff_bits[i], 1, 1,
1634 ff_vc1_mv_diff_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
1636 for (i = 0; i < 8; i++) {
1637 ff_vc1_ac_coeff_table[i].table = &vlc_table[vlc_offs[i * 2 + 21]];
1638 ff_vc1_ac_coeff_table[i].table_allocated = vlc_offs[i * 2 + 22] - vlc_offs[i * 2 + 21];
1639 init_vlc(&ff_vc1_ac_coeff_table[i], AC_VLC_BITS, ff_vc1_ac_sizes[i],
1640 &vc1_ac_tables[i][0][1], 8, 4,
1641 &vc1_ac_tables[i][0][0], 8, 4, INIT_VLC_USE_NEW_STATIC);
1642 /* initialize interlaced MVDATA tables (2-Ref) */
1643 ff_vc1_2ref_mvdata_vlc[i].table = &vlc_table[vlc_offs[i * 2 + 22]];
1644 ff_vc1_2ref_mvdata_vlc[i].table_allocated = vlc_offs[i * 2 + 23] - vlc_offs[i * 2 + 22];
1645 init_vlc(&ff_vc1_2ref_mvdata_vlc[i], VC1_2REF_MVDATA_VLC_BITS, 126,
1646 ff_vc1_2ref_mvdata_bits[i], 1, 1,
1647 ff_vc1_2ref_mvdata_codes[i], 4, 4, INIT_VLC_USE_NEW_STATIC);
1649 for (i = 0; i < 4; i++) {
1650 /* initialize 4MV MBMODE VLC tables for interlaced frame P picture */
1651 ff_vc1_intfr_4mv_mbmode_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 37]];
1652 ff_vc1_intfr_4mv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 38] - vlc_offs[i * 3 + 37];
1653 init_vlc(&ff_vc1_intfr_4mv_mbmode_vlc[i], VC1_INTFR_4MV_MBMODE_VLC_BITS, 15,
1654 ff_vc1_intfr_4mv_mbmode_bits[i], 1, 1,
1655 ff_vc1_intfr_4mv_mbmode_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
1656 /* initialize NON-4MV MBMODE VLC tables for the same */
1657 ff_vc1_intfr_non4mv_mbmode_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 38]];
1658 ff_vc1_intfr_non4mv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 39] - vlc_offs[i * 3 + 38];
1659 init_vlc(&ff_vc1_intfr_non4mv_mbmode_vlc[i], VC1_INTFR_NON4MV_MBMODE_VLC_BITS, 9,
1660 ff_vc1_intfr_non4mv_mbmode_bits[i], 1, 1,
1661 ff_vc1_intfr_non4mv_mbmode_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1662 /* initialize interlaced MVDATA tables (1-Ref) */
1663 ff_vc1_1ref_mvdata_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 39]];
1664 ff_vc1_1ref_mvdata_vlc[i].table_allocated = vlc_offs[i * 3 + 40] - vlc_offs[i * 3 + 39];
1665 init_vlc(&ff_vc1_1ref_mvdata_vlc[i], VC1_1REF_MVDATA_VLC_BITS, 72,
1666 ff_vc1_1ref_mvdata_bits[i], 1, 1,
1667 ff_vc1_1ref_mvdata_codes[i], 4, 4, INIT_VLC_USE_NEW_STATIC);
1669 for (i = 0; i < 4; i++) {
1670 /* Initialize 2MV Block pattern VLC tables */
1671 ff_vc1_2mv_block_pattern_vlc[i].table = &vlc_table[vlc_offs[i + 49]];
1672 ff_vc1_2mv_block_pattern_vlc[i].table_allocated = vlc_offs[i + 50] - vlc_offs[i + 49];
1673 init_vlc(&ff_vc1_2mv_block_pattern_vlc[i], VC1_2MV_BLOCK_PATTERN_VLC_BITS, 4,
1674 ff_vc1_2mv_block_pattern_bits[i], 1, 1,
1675 ff_vc1_2mv_block_pattern_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1677 for (i = 0; i < 8; i++) {
1678 /* Initialize interlaced CBPCY VLC tables (Table 124 - Table 131) */
1679 ff_vc1_icbpcy_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 53]];
1680 ff_vc1_icbpcy_vlc[i].table_allocated = vlc_offs[i * 3 + 54] - vlc_offs[i * 3 + 53];
1681 init_vlc(&ff_vc1_icbpcy_vlc[i], VC1_ICBPCY_VLC_BITS, 63,
1682 ff_vc1_icbpcy_p_bits[i], 1, 1,
1683 ff_vc1_icbpcy_p_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
1684 /* Initialize interlaced field picture MBMODE VLC tables */
1685 ff_vc1_if_mmv_mbmode_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 54]];
1686 ff_vc1_if_mmv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 55] - vlc_offs[i * 3 + 54];
1687 init_vlc(&ff_vc1_if_mmv_mbmode_vlc[i], VC1_IF_MMV_MBMODE_VLC_BITS, 8,
1688 ff_vc1_if_mmv_mbmode_bits[i], 1, 1,
1689 ff_vc1_if_mmv_mbmode_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1690 ff_vc1_if_1mv_mbmode_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 55]];
1691 ff_vc1_if_1mv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 56] - vlc_offs[i * 3 + 55];
1692 init_vlc(&ff_vc1_if_1mv_mbmode_vlc[i], VC1_IF_1MV_MBMODE_VLC_BITS, 6,
1693 ff_vc1_if_1mv_mbmode_bits[i], 1, 1,
1694 ff_vc1_if_1mv_mbmode_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1699 /* Other defaults */
1701 v->mvrange = 0; /* 7.1.1.18, p80 */