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
32 #include "mpegvideo.h"
35 #include "msmpeg4data.h"
37 #include "simple_idct.h"
42 /***********************************************************************/
44 * @name VC-1 Bitplane decoding
62 /** @} */ //imode defines
64 /** Decode rows by checking if they are skipped
65 * @param plane Buffer to store decoded bits
66 * @param[in] width Width of this buffer
67 * @param[in] height Height of this buffer
68 * @param[in] stride of this buffer
70 static void decode_rowskip(uint8_t* plane, int width, int height, int stride,
75 for (y = 0; y < height; y++) {
76 if (!get_bits1(gb)) //rowskip
77 memset(plane, 0, width);
79 for (x = 0; x < width; x++)
80 plane[x] = get_bits1(gb);
85 /** Decode columns by checking if they are skipped
86 * @param plane Buffer to store decoded bits
87 * @param[in] width Width of this buffer
88 * @param[in] height Height of this buffer
89 * @param[in] stride of this buffer
90 * @todo FIXME: Optimize
92 static void decode_colskip(uint8_t* plane, int width, int height, int stride,
97 for (x = 0; x < width; x++) {
98 if (!get_bits1(gb)) //colskip
99 for (y = 0; y < height; y++)
102 for (y = 0; y < height; y++)
103 plane[y*stride] = get_bits1(gb);
108 /** Decode a bitplane's bits
109 * @param data bitplane where to store the decode bits
110 * @param[out] raw_flag pointer to the flag indicating that this bitplane is not coded explicitly
111 * @param v VC-1 context for bit reading and logging
113 * @todo FIXME: Optimize
115 static int bitplane_decoding(uint8_t* data, int *raw_flag, VC1Context *v)
117 GetBitContext *gb = &v->s.gb;
119 int imode, x, y, code, offset;
120 uint8_t invert, *planep = data;
121 int width, height, stride;
123 width = v->s.mb_width;
124 height = v->s.mb_height >> v->field_mode;
125 stride = v->s.mb_stride;
126 invert = get_bits1(gb);
127 imode = get_vlc2(gb, ff_vc1_imode_vlc.table, VC1_IMODE_VLC_BITS, 1);
132 //Data is actually read in the MB layer (same for all tests == "raw")
133 *raw_flag = 1; //invert ignored
137 if ((height * width) & 1) {
138 *planep++ = get_bits1(gb);
143 // decode bitplane as one long line
144 for (y = offset; y < height * width; y += 2) {
145 code = get_vlc2(gb, ff_vc1_norm2_vlc.table, VC1_NORM2_VLC_BITS, 1);
146 *planep++ = code & 1;
148 if (offset == width) {
150 planep += stride - width;
152 *planep++ = code >> 1;
154 if (offset == width) {
156 planep += stride - width;
162 if (!(height % 3) && (width % 3)) { // use 2x3 decoding
163 for (y = 0; y < height; y += 3) {
164 for (x = width & 1; x < width; x += 2) {
165 code = get_vlc2(gb, ff_vc1_norm6_vlc.table, VC1_NORM6_VLC_BITS, 2);
167 av_log(v->s.avctx, AV_LOG_DEBUG, "invalid NORM-6 VLC\n");
170 planep[x + 0] = (code >> 0) & 1;
171 planep[x + 1] = (code >> 1) & 1;
172 planep[x + 0 + stride] = (code >> 2) & 1;
173 planep[x + 1 + stride] = (code >> 3) & 1;
174 planep[x + 0 + stride * 2] = (code >> 4) & 1;
175 planep[x + 1 + stride * 2] = (code >> 5) & 1;
177 planep += stride * 3;
180 decode_colskip(data, 1, height, stride, &v->s.gb);
182 planep += (height & 1) * stride;
183 for (y = height & 1; y < height; y += 2) {
184 for (x = width % 3; x < width; x += 3) {
185 code = get_vlc2(gb, ff_vc1_norm6_vlc.table, VC1_NORM6_VLC_BITS, 2);
187 av_log(v->s.avctx, AV_LOG_DEBUG, "invalid NORM-6 VLC\n");
190 planep[x + 0] = (code >> 0) & 1;
191 planep[x + 1] = (code >> 1) & 1;
192 planep[x + 2] = (code >> 2) & 1;
193 planep[x + 0 + stride] = (code >> 3) & 1;
194 planep[x + 1 + stride] = (code >> 4) & 1;
195 planep[x + 2 + stride] = (code >> 5) & 1;
197 planep += stride * 2;
201 decode_colskip(data, x, height, stride, &v->s.gb);
203 decode_rowskip(data + x, width - x, 1, stride, &v->s.gb);
207 decode_rowskip(data, width, height, stride, &v->s.gb);
210 decode_colskip(data, width, height, stride, &v->s.gb);
216 /* Applying diff operator */
217 if (imode == IMODE_DIFF2 || imode == IMODE_DIFF6) {
220 for (x = 1; x < width; x++)
221 planep[x] ^= planep[x-1];
222 for (y = 1; y < height; y++) {
224 planep[0] ^= planep[-stride];
225 for (x = 1; x < width; x++) {
226 if (planep[x-1] != planep[x-stride]) planep[x] ^= invert;
227 else planep[x] ^= planep[x-1];
232 for (x = 0; x < stride * height; x++)
233 planep[x] = !planep[x]; //FIXME stride
235 return (imode << 1) + invert;
238 /** @} */ //Bitplane group
240 /***********************************************************************/
241 /** VOP Dquant decoding
242 * @param v VC-1 Context
244 static int vop_dquant_decoding(VC1Context *v)
246 GetBitContext *gb = &v->s.gb;
250 if (v->dquant == 2) {
251 pqdiff = get_bits(gb, 3);
253 v->altpq = get_bits(gb, 5);
255 v->altpq = v->pq + pqdiff + 1;
257 v->dquantfrm = get_bits1(gb);
259 v->dqprofile = get_bits(gb, 2);
260 switch (v->dqprofile) {
261 case DQPROFILE_SINGLE_EDGE:
262 case DQPROFILE_DOUBLE_EDGES:
263 v->dqsbedge = get_bits(gb, 2);
265 case DQPROFILE_ALL_MBS:
266 v->dqbilevel = get_bits1(gb);
272 if (v->dqbilevel || v->dqprofile != DQPROFILE_ALL_MBS) {
273 pqdiff = get_bits(gb, 3);
275 v->altpq = get_bits(gb, 5);
277 v->altpq = v->pq + pqdiff + 1;
284 static int decode_sequence_header_adv(VC1Context *v, GetBitContext *gb);
287 * Decode Simple/Main Profiles sequence header
288 * @see Figure 7-8, p16-17
289 * @param avctx Codec context
290 * @param gb GetBit context initialized from Codec context extra_data
293 int ff_vc1_decode_sequence_header(AVCodecContext *avctx, VC1Context *v, GetBitContext *gb)
295 av_log(avctx, AV_LOG_DEBUG, "Header: %0X\n", show_bits_long(gb, 32));
296 v->profile = get_bits(gb, 2);
297 if (v->profile == PROFILE_COMPLEX) {
298 av_log(avctx, AV_LOG_WARNING, "WMV3 Complex Profile is not fully supported\n");
301 if (v->profile == PROFILE_ADVANCED) {
302 v->zz_8x4 = ff_vc1_adv_progressive_8x4_zz;
303 v->zz_4x8 = ff_vc1_adv_progressive_4x8_zz;
304 return decode_sequence_header_adv(v, gb);
306 v->zz_8x4 = ff_wmv2_scantableA;
307 v->zz_4x8 = ff_wmv2_scantableB;
308 v->res_y411 = get_bits1(gb);
309 v->res_sprite = get_bits1(gb);
311 av_log(avctx, AV_LOG_ERROR,
312 "Old interlaced mode is not supported\n");
318 v->frmrtq_postproc = get_bits(gb, 3); //common
319 // (bitrate-32kbps)/64kbps
320 v->bitrtq_postproc = get_bits(gb, 5); //common
321 v->s.loop_filter = get_bits1(gb); //common
322 if (v->s.loop_filter == 1 && v->profile == PROFILE_SIMPLE) {
323 av_log(avctx, AV_LOG_ERROR,
324 "LOOPFILTER shall not be enabled in Simple Profile\n");
326 if (v->s.avctx->skip_loop_filter >= AVDISCARD_ALL)
327 v->s.loop_filter = 0;
329 v->res_x8 = get_bits1(gb); //reserved
330 v->multires = get_bits1(gb);
331 v->res_fasttx = get_bits1(gb);
332 if (!v->res_fasttx) {
333 v->vc1dsp.vc1_inv_trans_8x8 = ff_simple_idct_8;
334 v->vc1dsp.vc1_inv_trans_8x4 = ff_simple_idct84_add;
335 v->vc1dsp.vc1_inv_trans_4x8 = ff_simple_idct48_add;
336 v->vc1dsp.vc1_inv_trans_4x4 = ff_simple_idct44_add;
337 v->vc1dsp.vc1_inv_trans_8x8_dc = ff_simple_idct_add_8;
338 v->vc1dsp.vc1_inv_trans_8x4_dc = ff_simple_idct84_add;
339 v->vc1dsp.vc1_inv_trans_4x8_dc = ff_simple_idct48_add;
340 v->vc1dsp.vc1_inv_trans_4x4_dc = ff_simple_idct44_add;
343 v->fastuvmc = get_bits1(gb); //common
344 if (!v->profile && !v->fastuvmc) {
345 av_log(avctx, AV_LOG_ERROR,
346 "FASTUVMC unavailable in Simple Profile\n");
349 v->extended_mv = get_bits1(gb); //common
350 if (!v->profile && v->extended_mv)
352 av_log(avctx, AV_LOG_ERROR,
353 "Extended MVs unavailable in Simple Profile\n");
356 v->dquant = get_bits(gb, 2); //common
357 v->vstransform = get_bits1(gb); //common
359 v->res_transtab = get_bits1(gb);
362 av_log(avctx, AV_LOG_ERROR,
363 "1 for reserved RES_TRANSTAB is forbidden\n");
367 v->overlap = get_bits1(gb); //common
369 v->s.resync_marker = get_bits1(gb);
370 v->rangered = get_bits1(gb);
371 if (v->rangered && v->profile == PROFILE_SIMPLE) {
372 av_log(avctx, AV_LOG_INFO,
373 "RANGERED should be set to 0 in Simple Profile\n");
376 v->s.max_b_frames = avctx->max_b_frames = get_bits(gb, 3); //common
377 v->quantizer_mode = get_bits(gb, 2); //common
379 v->finterpflag = get_bits1(gb); //common
382 int w = get_bits(gb, 11);
383 int h = get_bits(gb, 11);
384 avcodec_set_dimensions(v->s.avctx, w, h);
385 skip_bits(gb, 5); //frame rate
386 v->res_x8 = get_bits1(gb);
387 if (get_bits1(gb)) { // something to do with DC VLC selection
388 av_log(avctx, AV_LOG_ERROR, "Unsupported sprite feature\n");
391 skip_bits(gb, 3); //slice code
394 v->res_rtm_flag = get_bits1(gb); //reserved
396 if (!v->res_rtm_flag) {
397 av_log(avctx, AV_LOG_ERROR,
398 "Old WMV3 version detected, some frames may be decoded incorrectly\n");
401 //TODO: figure out what they mean (always 0x402F)
404 av_log(avctx, AV_LOG_DEBUG,
405 "Profile %i:\nfrmrtq_postproc=%i, bitrtq_postproc=%i\n"
406 "LoopFilter=%i, MultiRes=%i, FastUVMC=%i, Extended MV=%i\n"
407 "Rangered=%i, VSTransform=%i, Overlap=%i, SyncMarker=%i\n"
408 "DQuant=%i, Quantizer mode=%i, Max B frames=%i\n",
409 v->profile, v->frmrtq_postproc, v->bitrtq_postproc,
410 v->s.loop_filter, v->multires, v->fastuvmc, v->extended_mv,
411 v->rangered, v->vstransform, v->overlap, v->s.resync_marker,
412 v->dquant, v->quantizer_mode, avctx->max_b_frames);
416 static int decode_sequence_header_adv(VC1Context *v, GetBitContext *gb)
419 v->level = get_bits(gb, 3);
421 av_log(v->s.avctx, AV_LOG_ERROR, "Reserved LEVEL %i\n",v->level);
423 v->chromaformat = get_bits(gb, 2);
424 if (v->chromaformat != 1) {
425 av_log(v->s.avctx, AV_LOG_ERROR,
426 "Only 4:2:0 chroma format supported\n");
431 v->frmrtq_postproc = get_bits(gb, 3); //common
432 // (bitrate-32kbps)/64kbps
433 v->bitrtq_postproc = get_bits(gb, 5); //common
434 v->postprocflag = get_bits1(gb); //common
436 v->max_coded_width = (get_bits(gb, 12) + 1) << 1;
437 v->max_coded_height = (get_bits(gb, 12) + 1) << 1;
438 v->broadcast = get_bits1(gb);
439 v->interlace = get_bits1(gb);
440 v->tfcntrflag = get_bits1(gb);
441 v->finterpflag = get_bits1(gb);
442 skip_bits1(gb); // reserved
444 av_log(v->s.avctx, AV_LOG_DEBUG,
445 "Advanced Profile level %i:\nfrmrtq_postproc=%i, bitrtq_postproc=%i\n"
446 "LoopFilter=%i, ChromaFormat=%i, Pulldown=%i, Interlace: %i\n"
447 "TFCTRflag=%i, FINTERPflag=%i\n",
448 v->level, v->frmrtq_postproc, v->bitrtq_postproc,
449 v->s.loop_filter, v->chromaformat, v->broadcast, v->interlace,
450 v->tfcntrflag, v->finterpflag);
452 v->psf = get_bits1(gb);
453 if (v->psf) { //PsF, 6.1.13
454 av_log(v->s.avctx, AV_LOG_ERROR, "Progressive Segmented Frame mode: not supported (yet)\n");
457 v->s.max_b_frames = v->s.avctx->max_b_frames = 7;
458 if (get_bits1(gb)) { //Display Info - decoding is not affected by it
460 av_log(v->s.avctx, AV_LOG_DEBUG, "Display extended info:\n");
461 w = get_bits(gb, 14) + 1;
462 h = get_bits(gb, 14) + 1;
463 av_log(v->s.avctx, AV_LOG_DEBUG, "Display dimensions: %ix%i\n", w, h);
465 ar = get_bits(gb, 4);
467 v->s.avctx->sample_aspect_ratio = ff_vc1_pixel_aspect[ar];
468 } else if (ar == 15) {
469 w = get_bits(gb, 8) + 1;
470 h = get_bits(gb, 8) + 1;
471 v->s.avctx->sample_aspect_ratio = (AVRational){w, h};
473 av_reduce(&v->s.avctx->sample_aspect_ratio.num,
474 &v->s.avctx->sample_aspect_ratio.den,
475 v->s.avctx->height * w,
476 v->s.avctx->width * h,
479 av_log(v->s.avctx, AV_LOG_DEBUG, "Aspect: %i:%i\n",
480 v->s.avctx->sample_aspect_ratio.num,
481 v->s.avctx->sample_aspect_ratio.den);
483 if (get_bits1(gb)) { //framerate stuff
485 v->s.avctx->time_base.num = 32;
486 v->s.avctx->time_base.den = get_bits(gb, 16) + 1;
489 nr = get_bits(gb, 8);
490 dr = get_bits(gb, 4);
491 if (nr > 0 && nr < 8 && dr > 0 && dr < 3) {
492 v->s.avctx->time_base.num = ff_vc1_fps_dr[dr - 1];
493 v->s.avctx->time_base.den = ff_vc1_fps_nr[nr - 1] * 1000;
496 if (v->broadcast) { // Pulldown may be present
497 v->s.avctx->time_base.den *= 2;
498 v->s.avctx->ticks_per_frame = 2;
503 v->s.avctx->color_primaries = get_bits(gb, 8);
504 v->s.avctx->color_trc = get_bits(gb, 8);
505 v->s.avctx->colorspace = get_bits(gb, 8);
506 v->s.avctx->color_range = AVCOL_RANGE_MPEG;
510 v->hrd_param_flag = get_bits1(gb);
511 if (v->hrd_param_flag) {
513 v->hrd_num_leaky_buckets = get_bits(gb, 5);
514 skip_bits(gb, 4); //bitrate exponent
515 skip_bits(gb, 4); //buffer size exponent
516 for (i = 0; i < v->hrd_num_leaky_buckets; i++) {
517 skip_bits(gb, 16); //hrd_rate[n]
518 skip_bits(gb, 16); //hrd_buffer[n]
524 int ff_vc1_decode_entry_point(AVCodecContext *avctx, VC1Context *v, GetBitContext *gb)
529 av_log(avctx, AV_LOG_DEBUG, "Entry point: %08X\n", show_bits_long(gb, 32));
530 v->broken_link = get_bits1(gb);
531 v->closed_entry = get_bits1(gb);
532 v->panscanflag = get_bits1(gb);
533 v->refdist_flag = get_bits1(gb);
534 v->s.loop_filter = get_bits1(gb);
535 if (v->s.avctx->skip_loop_filter >= AVDISCARD_ALL)
536 v->s.loop_filter = 0;
537 v->fastuvmc = get_bits1(gb);
538 v->extended_mv = get_bits1(gb);
539 v->dquant = get_bits(gb, 2);
540 v->vstransform = get_bits1(gb);
541 v->overlap = get_bits1(gb);
542 v->quantizer_mode = get_bits(gb, 2);
544 if (v->hrd_param_flag) {
545 for (i = 0; i < v->hrd_num_leaky_buckets; i++) {
546 skip_bits(gb, 8); //hrd_full[n]
551 w = (get_bits(gb, 12)+1)<<1;
552 h = (get_bits(gb, 12)+1)<<1;
554 w = v->max_coded_width;
555 h = v->max_coded_height;
557 avcodec_set_dimensions(avctx, w, h);
559 v->extended_dmv = get_bits1(gb);
560 if ((v->range_mapy_flag = get_bits1(gb))) {
561 av_log(avctx, AV_LOG_ERROR, "Luma scaling is not supported, expect wrong picture\n");
562 v->range_mapy = get_bits(gb, 3);
564 if ((v->range_mapuv_flag = get_bits1(gb))) {
565 av_log(avctx, AV_LOG_ERROR, "Chroma scaling is not supported, expect wrong picture\n");
566 v->range_mapuv = get_bits(gb, 3);
569 av_log(avctx, AV_LOG_DEBUG, "Entry point info:\n"
570 "BrokenLink=%i, ClosedEntry=%i, PanscanFlag=%i\n"
571 "RefDist=%i, Postproc=%i, FastUVMC=%i, ExtMV=%i\n"
572 "DQuant=%i, VSTransform=%i, Overlap=%i, Qmode=%i\n",
573 v->broken_link, v->closed_entry, v->panscanflag, v->refdist_flag, v->s.loop_filter,
574 v->fastuvmc, v->extended_mv, v->dquant, v->vstransform, v->overlap, v->quantizer_mode);
579 /* fill lookup tables for intensity compensation */
580 #define INIT_LUT(lumscale, lumshift, luty, lutuv) do {\
581 int scale, shift, i; \
584 shift = (255 - lumshift * 2) << 6; \
588 scale = lumscale + 32; \
590 shift = (lumshift - 64) << 6; \
592 shift = lumshift << 6; \
594 for (i = 0; i < 256; i++) { \
595 luty[i] = av_clip_uint8((scale * i + shift + 32) >> 6); \
596 lutuv[i] = av_clip_uint8((scale * (i - 128) + 128*64 + 32) >> 6); \
600 int ff_vc1_parse_frame_header(VC1Context *v, GetBitContext* gb)
602 int pqindex, lowquant, status;
605 v->interpfrm = get_bits1(gb);
606 if (!v->s.avctx->codec)
608 if (v->s.avctx->codec_id == AV_CODEC_ID_MSS2)
611 v->multires = get_bits(gb, 2) == 1;
613 skip_bits(gb, 2); //framecnt unused
616 v->rangeredfrm = get_bits1(gb);
617 v->s.pict_type = get_bits1(gb);
618 if (v->s.avctx->max_b_frames) {
619 if (!v->s.pict_type) {
621 v->s.pict_type = AV_PICTURE_TYPE_I;
623 v->s.pict_type = AV_PICTURE_TYPE_B;
625 v->s.pict_type = AV_PICTURE_TYPE_P;
627 v->s.pict_type = v->s.pict_type ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_I;
630 if (v->s.pict_type == AV_PICTURE_TYPE_B) {
631 v->bfraction_lut_index = get_vlc2(gb, ff_vc1_bfraction_vlc.table, VC1_BFRACTION_VLC_BITS, 1);
632 v->bfraction = ff_vc1_bfraction_lut[v->bfraction_lut_index];
633 if (v->bfraction == 0) {
634 v->s.pict_type = AV_PICTURE_TYPE_BI;
637 if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI)
638 skip_bits(gb, 7); // skip buffer fullness
644 if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI)
646 if (v->s.pict_type == AV_PICTURE_TYPE_P)
649 /* Quantizer stuff */
650 pqindex = get_bits(gb, 5);
653 if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
654 v->pq = ff_vc1_pquant_table[0][pqindex];
656 v->pq = ff_vc1_pquant_table[1][pqindex];
659 if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
660 v->pquantizer = pqindex < 9;
661 if (v->quantizer_mode == QUANT_NON_UNIFORM)
663 v->pqindex = pqindex;
665 v->halfpq = get_bits1(gb);
668 if (v->quantizer_mode == QUANT_FRAME_EXPLICIT)
669 v->pquantizer = get_bits1(gb);
671 if (v->extended_mv == 1)
672 v->mvrange = get_unary(gb, 0, 3);
673 v->k_x = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13
674 v->k_y = v->mvrange + 8; //k_y can be 8 9 10 11
675 v->range_x = 1 << (v->k_x - 1);
676 v->range_y = 1 << (v->k_y - 1);
677 if (v->multires && v->s.pict_type != AV_PICTURE_TYPE_B)
678 v->respic = get_bits(gb, 2);
680 if (v->res_x8 && (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI)) {
681 v->x8_type = get_bits1(gb);
684 av_dlog(v->s.avctx, "%c Frame: QP=[%i]%i (+%i/2) %i\n",
685 (v->s.pict_type == AV_PICTURE_TYPE_P) ? 'P' : ((v->s.pict_type == AV_PICTURE_TYPE_I) ? 'I' : 'B'),
686 pqindex, v->pq, v->halfpq, v->rangeredfrm);
688 if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_P)
691 switch (v->s.pict_type) {
692 case AV_PICTURE_TYPE_P:
693 if (v->pq < 5) v->tt_index = 0;
694 else if (v->pq < 13) v->tt_index = 1;
695 else v->tt_index = 2;
697 lowquant = (v->pq > 12) ? 0 : 1;
698 v->mv_mode = ff_vc1_mv_pmode_table[lowquant][get_unary(gb, 1, 4)];
699 if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {
700 v->mv_mode2 = ff_vc1_mv_pmode_table2[lowquant][get_unary(gb, 1, 3)];
701 v->lumscale = get_bits(gb, 6);
702 v->lumshift = get_bits(gb, 6);
704 /* fill lookup tables for intensity compensation */
705 INIT_LUT(v->lumscale, v->lumshift, v->luty, v->lutuv);
707 v->qs_last = v->s.quarter_sample;
708 if (v->mv_mode == MV_PMODE_1MV_HPEL || v->mv_mode == MV_PMODE_1MV_HPEL_BILIN)
709 v->s.quarter_sample = 0;
710 else if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {
711 if (v->mv_mode2 == MV_PMODE_1MV_HPEL || v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN)
712 v->s.quarter_sample = 0;
714 v->s.quarter_sample = 1;
716 v->s.quarter_sample = 1;
717 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));
719 if ((v->mv_mode == MV_PMODE_INTENSITY_COMP &&
720 v->mv_mode2 == MV_PMODE_MIXED_MV) ||
721 v->mv_mode == MV_PMODE_MIXED_MV) {
722 status = bitplane_decoding(v->mv_type_mb_plane, &v->mv_type_is_raw, v);
725 av_log(v->s.avctx, AV_LOG_DEBUG, "MB MV Type plane encoding: "
726 "Imode: %i, Invert: %i\n", status>>1, status&1);
728 v->mv_type_is_raw = 0;
729 memset(v->mv_type_mb_plane, 0, v->s.mb_stride * v->s.mb_height);
731 status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
734 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
735 "Imode: %i, Invert: %i\n", status>>1, status&1);
737 /* Hopefully this is correct for P frames */
738 v->s.mv_table_index = get_bits(gb, 2); //but using ff_vc1_ tables
739 v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];
742 av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
743 vop_dquant_decoding(v);
746 v->ttfrm = 0; //FIXME Is that so ?
747 if (v->vstransform) {
748 v->ttmbf = get_bits1(gb);
750 v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
757 case AV_PICTURE_TYPE_B:
758 if (v->pq < 5) v->tt_index = 0;
759 else if (v->pq < 13) v->tt_index = 1;
760 else v->tt_index = 2;
762 v->mv_mode = get_bits1(gb) ? MV_PMODE_1MV : MV_PMODE_1MV_HPEL_BILIN;
763 v->qs_last = v->s.quarter_sample;
764 v->s.quarter_sample = (v->mv_mode == MV_PMODE_1MV);
765 v->s.mspel = v->s.quarter_sample;
767 status = bitplane_decoding(v->direct_mb_plane, &v->dmb_is_raw, v);
770 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Direct Type plane encoding: "
771 "Imode: %i, Invert: %i\n", status>>1, status&1);
772 status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
775 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
776 "Imode: %i, Invert: %i\n", status>>1, status&1);
778 v->s.mv_table_index = get_bits(gb, 2);
779 v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];
782 av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
783 vop_dquant_decoding(v);
787 if (v->vstransform) {
788 v->ttmbf = get_bits1(gb);
790 v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
801 v->c_ac_table_index = decode012(gb);
802 if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI) {
803 v->y_ac_table_index = decode012(gb);
806 v->s.dc_table_index = get_bits1(gb);
809 if (v->s.pict_type == AV_PICTURE_TYPE_BI) {
810 v->s.pict_type = AV_PICTURE_TYPE_B;
816 int ff_vc1_parse_frame_header_adv(VC1Context *v, GetBitContext* gb)
818 int pqindex, lowquant;
820 int mbmodetab, imvtab, icbptab, twomvbptab, fourmvbptab; /* useful only for debugging */
824 v->p_frame_skipped = 0;
825 if (v->second_field) {
826 if(v->fcm!=2 || v->field_mode!=1)
828 v->s.pict_type = (v->fptype & 1) ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_I;
830 v->s.pict_type = (v->fptype & 1) ? AV_PICTURE_TYPE_BI : AV_PICTURE_TYPE_B;
831 v->s.current_picture_ptr->f.pict_type = v->s.pict_type;
832 if (!v->pic_header_flag)
833 goto parse_common_info;
840 if (fcm == ILACE_FIELD)
842 if (!v->warn_interlaced++)
843 av_log(v->s.avctx, AV_LOG_ERROR,
844 "Interlaced frames/fields support is incomplete\n");
849 if (!v->first_pic_header_flag && v->field_mode != field_mode)
851 v->field_mode = field_mode;
855 v->fptype = get_bits(gb, 3);
856 v->s.pict_type = (v->fptype & 2) ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_I;
857 if (v->fptype & 4) // B-picture
858 v->s.pict_type = (v->fptype & 2) ? AV_PICTURE_TYPE_BI : AV_PICTURE_TYPE_B;
860 switch (get_unary(gb, 0, 4)) {
862 v->s.pict_type = AV_PICTURE_TYPE_P;
865 v->s.pict_type = AV_PICTURE_TYPE_B;
868 v->s.pict_type = AV_PICTURE_TYPE_I;
871 v->s.pict_type = AV_PICTURE_TYPE_BI;
874 v->s.pict_type = AV_PICTURE_TYPE_P; // skipped pic
875 v->p_frame_skipped = 1;
882 if (!v->interlace || v->psf) {
883 v->rptfrm = get_bits(gb, 2);
885 v->tff = get_bits1(gb);
886 v->rff = get_bits1(gb);
891 if (v->panscanflag) {
892 avpriv_report_missing_feature(v->s.avctx, "Pan-scan");
895 if (v->p_frame_skipped) {
898 v->rnd = get_bits1(gb);
900 v->uvsamp = get_bits1(gb);
901 if(!ff_vc1_bfraction_vlc.table)
902 return 0; //parsing only, vlc tables havnt been allocated
904 if (!v->refdist_flag)
906 else if ((v->s.pict_type != AV_PICTURE_TYPE_B) && (v->s.pict_type != AV_PICTURE_TYPE_BI)) {
907 v->refdist = get_bits(gb, 2);
909 v->refdist += get_unary(gb, 0, 16);
911 if ((v->s.pict_type == AV_PICTURE_TYPE_B) || (v->s.pict_type == AV_PICTURE_TYPE_BI)) {
912 v->bfraction_lut_index = get_vlc2(gb, ff_vc1_bfraction_vlc.table, VC1_BFRACTION_VLC_BITS, 1);
913 v->bfraction = ff_vc1_bfraction_lut[v->bfraction_lut_index];
914 v->frfd = (v->bfraction * v->refdist) >> 8;
915 v->brfd = v->refdist - v->frfd - 1;
919 goto parse_common_info;
921 if (v->fcm == PROGRESSIVE) {
923 v->interpfrm = get_bits1(gb);
924 if (v->s.pict_type == AV_PICTURE_TYPE_B) {
925 v->bfraction_lut_index = get_vlc2(gb, ff_vc1_bfraction_vlc.table, VC1_BFRACTION_VLC_BITS, 1);
926 v->bfraction = ff_vc1_bfraction_lut[v->bfraction_lut_index];
927 if (v->bfraction == 0) {
928 v->s.pict_type = AV_PICTURE_TYPE_BI; /* XXX: should not happen here */
935 v->cur_field_type = !(v->tff ^ v->second_field);
936 pqindex = get_bits(gb, 5);
939 v->pqindex = pqindex;
940 if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
941 v->pq = ff_vc1_pquant_table[0][pqindex];
943 v->pq = ff_vc1_pquant_table[1][pqindex];
946 if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
947 v->pquantizer = pqindex < 9;
948 if (v->quantizer_mode == QUANT_NON_UNIFORM)
950 v->pqindex = pqindex;
952 v->halfpq = get_bits1(gb);
955 if (v->quantizer_mode == QUANT_FRAME_EXPLICIT)
956 v->pquantizer = get_bits1(gb);
958 v->postproc = get_bits(gb, 2);
960 if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_P)
966 switch (v->s.pict_type) {
967 case AV_PICTURE_TYPE_I:
968 case AV_PICTURE_TYPE_BI:
969 if (v->fcm == ILACE_FRAME) { //interlace frame picture
970 status = bitplane_decoding(v->fieldtx_plane, &v->fieldtx_is_raw, v);
973 av_log(v->s.avctx, AV_LOG_DEBUG, "FIELDTX plane encoding: "
974 "Imode: %i, Invert: %i\n", status>>1, status&1);
976 status = bitplane_decoding(v->acpred_plane, &v->acpred_is_raw, v);
979 av_log(v->s.avctx, AV_LOG_DEBUG, "ACPRED plane encoding: "
980 "Imode: %i, Invert: %i\n", status>>1, status&1);
981 v->condover = CONDOVER_NONE;
982 if (v->overlap && v->pq <= 8) {
983 v->condover = decode012(gb);
984 if (v->condover == CONDOVER_SELECT) {
985 status = bitplane_decoding(v->over_flags_plane, &v->overflg_is_raw, v);
988 av_log(v->s.avctx, AV_LOG_DEBUG, "CONDOVER plane encoding: "
989 "Imode: %i, Invert: %i\n", status>>1, status&1);
993 case AV_PICTURE_TYPE_P:
995 v->numref = get_bits1(gb);
997 v->reffield = get_bits1(gb);
998 v->ref_field_type[0] = v->reffield ^ !v->cur_field_type;
1002 v->mvrange = get_unary(gb, 0, 3);
1006 if (v->extended_dmv)
1007 v->dmvrange = get_unary(gb, 0, 3);
1010 if (v->fcm == ILACE_FRAME) { // interlaced frame picture
1011 v->fourmvswitch = get_bits1(gb);
1012 v->intcomp = get_bits1(gb);
1014 v->lumscale = get_bits(gb, 6);
1015 v->lumshift = get_bits(gb, 6);
1016 INIT_LUT(v->lumscale, v->lumshift, v->luty, v->lutuv);
1018 status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
1019 av_log(v->s.avctx, AV_LOG_DEBUG, "SKIPMB plane encoding: "
1020 "Imode: %i, Invert: %i\n", status>>1, status&1);
1021 mbmodetab = get_bits(gb, 2);
1022 if (v->fourmvswitch)
1023 v->mbmode_vlc = &ff_vc1_intfr_4mv_mbmode_vlc[mbmodetab];
1025 v->mbmode_vlc = &ff_vc1_intfr_non4mv_mbmode_vlc[mbmodetab];
1026 imvtab = get_bits(gb, 2);
1027 v->imv_vlc = &ff_vc1_1ref_mvdata_vlc[imvtab];
1028 // interlaced p-picture cbpcy range is [1, 63]
1029 icbptab = get_bits(gb, 3);
1030 v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[icbptab];
1031 twomvbptab = get_bits(gb, 2);
1032 v->twomvbp_vlc = &ff_vc1_2mv_block_pattern_vlc[twomvbptab];
1033 if (v->fourmvswitch) {
1034 fourmvbptab = get_bits(gb, 2);
1035 v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[fourmvbptab];
1039 v->k_x = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13
1040 v->k_y = v->mvrange + 8; //k_y can be 8 9 10 11
1041 v->range_x = 1 << (v->k_x - 1);
1042 v->range_y = 1 << (v->k_y - 1);
1046 else if (v->pq < 13)
1050 if (v->fcm != ILACE_FRAME) {
1052 mvmode = get_unary(gb, 1, 4);
1053 lowquant = (v->pq > 12) ? 0 : 1;
1054 v->mv_mode = ff_vc1_mv_pmode_table[lowquant][mvmode];
1055 if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {
1057 mvmode2 = get_unary(gb, 1, 3);
1058 v->mv_mode2 = ff_vc1_mv_pmode_table2[lowquant][mvmode2];
1060 v->intcompfield = decode210(gb);
1061 v->lumscale = get_bits(gb, 6);
1062 v->lumshift = get_bits(gb, 6);
1063 INIT_LUT(v->lumscale, v->lumshift, v->luty, v->lutuv);
1064 if ((v->field_mode) && !v->intcompfield) {
1065 v->lumscale2 = get_bits(gb, 6);
1066 v->lumshift2 = get_bits(gb, 6);
1067 INIT_LUT(v->lumscale2, v->lumshift2, v->luty2, v->lutuv2);
1071 v->qs_last = v->s.quarter_sample;
1072 if (v->mv_mode == MV_PMODE_1MV_HPEL || v->mv_mode == MV_PMODE_1MV_HPEL_BILIN)
1073 v->s.quarter_sample = 0;
1074 else if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {
1075 if (v->mv_mode2 == MV_PMODE_1MV_HPEL || v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN)
1076 v->s.quarter_sample = 0;
1078 v->s.quarter_sample = 1;
1080 v->s.quarter_sample = 1;
1081 v->s.mspel = !(v->mv_mode == MV_PMODE_1MV_HPEL_BILIN
1082 || (v->mv_mode == MV_PMODE_INTENSITY_COMP
1083 && v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN));
1085 if (v->fcm == PROGRESSIVE) { // progressive
1086 if ((v->mv_mode == MV_PMODE_INTENSITY_COMP &&
1087 v->mv_mode2 == MV_PMODE_MIXED_MV)
1088 || v->mv_mode == MV_PMODE_MIXED_MV) {
1089 status = bitplane_decoding(v->mv_type_mb_plane, &v->mv_type_is_raw, v);
1092 av_log(v->s.avctx, AV_LOG_DEBUG, "MB MV Type plane encoding: "
1093 "Imode: %i, Invert: %i\n", status>>1, status&1);
1095 v->mv_type_is_raw = 0;
1096 memset(v->mv_type_mb_plane, 0, v->s.mb_stride * v->s.mb_height);
1098 status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
1101 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
1102 "Imode: %i, Invert: %i\n", status>>1, status&1);
1104 /* Hopefully this is correct for P frames */
1105 v->s.mv_table_index = get_bits(gb, 2); //but using ff_vc1_ tables
1106 v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];
1107 } else if (v->fcm == ILACE_FRAME) { // frame interlaced
1108 v->qs_last = v->s.quarter_sample;
1109 v->s.quarter_sample = 1;
1111 } else { // field interlaced
1112 mbmodetab = get_bits(gb, 3);
1113 imvtab = get_bits(gb, 2 + v->numref);
1115 v->imv_vlc = &ff_vc1_1ref_mvdata_vlc[imvtab];
1117 v->imv_vlc = &ff_vc1_2ref_mvdata_vlc[imvtab];
1118 icbptab = get_bits(gb, 3);
1119 v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[icbptab];
1120 if ((v->mv_mode == MV_PMODE_INTENSITY_COMP &&
1121 v->mv_mode2 == MV_PMODE_MIXED_MV) || v->mv_mode == MV_PMODE_MIXED_MV) {
1122 fourmvbptab = get_bits(gb, 2);
1123 v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[fourmvbptab];
1124 v->mbmode_vlc = &ff_vc1_if_mmv_mbmode_vlc[mbmodetab];
1126 v->mbmode_vlc = &ff_vc1_if_1mv_mbmode_vlc[mbmodetab];
1130 av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
1131 vop_dquant_decoding(v);
1134 v->ttfrm = 0; //FIXME Is that so ?
1135 if (v->vstransform) {
1136 v->ttmbf = get_bits1(gb);
1138 v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
1145 case AV_PICTURE_TYPE_B:
1146 if (v->fcm == ILACE_FRAME) {
1147 v->bfraction_lut_index = get_vlc2(gb, ff_vc1_bfraction_vlc.table, VC1_BFRACTION_VLC_BITS, 1);
1148 v->bfraction = ff_vc1_bfraction_lut[v->bfraction_lut_index];
1149 if (v->bfraction == 0) {
1154 v->mvrange = get_unary(gb, 0, 3);
1157 v->k_x = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13
1158 v->k_y = v->mvrange + 8; //k_y can be 8 9 10 11
1159 v->range_x = 1 << (v->k_x - 1);
1160 v->range_y = 1 << (v->k_y - 1);
1164 else if (v->pq < 13)
1169 if (v->field_mode) {
1171 av_log(v->s.avctx, AV_LOG_DEBUG, "B Fields\n");
1172 if (v->extended_dmv)
1173 v->dmvrange = get_unary(gb, 0, 3);
1174 mvmode = get_unary(gb, 1, 3);
1175 lowquant = (v->pq > 12) ? 0 : 1;
1176 v->mv_mode = ff_vc1_mv_pmode_table2[lowquant][mvmode];
1177 v->qs_last = v->s.quarter_sample;
1178 v->s.quarter_sample = (v->mv_mode == MV_PMODE_1MV || v->mv_mode == MV_PMODE_MIXED_MV);
1179 v->s.mspel = !(v->mv_mode == MV_PMODE_1MV_HPEL_BILIN || v->mv_mode == MV_PMODE_1MV_HPEL);
1180 status = bitplane_decoding(v->forward_mb_plane, &v->fmb_is_raw, v);
1183 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Forward Type plane encoding: "
1184 "Imode: %i, Invert: %i\n", status>>1, status&1);
1185 mbmodetab = get_bits(gb, 3);
1186 if (v->mv_mode == MV_PMODE_MIXED_MV)
1187 v->mbmode_vlc = &ff_vc1_if_mmv_mbmode_vlc[mbmodetab];
1189 v->mbmode_vlc = &ff_vc1_if_1mv_mbmode_vlc[mbmodetab];
1190 imvtab = get_bits(gb, 3);
1191 v->imv_vlc = &ff_vc1_2ref_mvdata_vlc[imvtab];
1192 icbptab = get_bits(gb, 3);
1193 v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[icbptab];
1194 if (v->mv_mode == MV_PMODE_MIXED_MV) {
1195 fourmvbptab = get_bits(gb, 2);
1196 v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[fourmvbptab];
1198 v->numref = 1; // interlaced field B pictures are always 2-ref
1199 } else if (v->fcm == ILACE_FRAME) {
1200 if (v->extended_dmv)
1201 v->dmvrange = get_unary(gb, 0, 3);
1202 get_bits1(gb); /* intcomp - present but shall always be 0 */
1204 v->mv_mode = MV_PMODE_1MV;
1205 v->fourmvswitch = 0;
1206 v->qs_last = v->s.quarter_sample;
1207 v->s.quarter_sample = 1;
1209 status = bitplane_decoding(v->direct_mb_plane, &v->dmb_is_raw, v);
1212 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Direct Type plane encoding: "
1213 "Imode: %i, Invert: %i\n", status>>1, status&1);
1214 status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
1217 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
1218 "Imode: %i, Invert: %i\n", status>>1, status&1);
1219 mbmodetab = get_bits(gb, 2);
1220 v->mbmode_vlc = &ff_vc1_intfr_non4mv_mbmode_vlc[mbmodetab];
1221 imvtab = get_bits(gb, 2);
1222 v->imv_vlc = &ff_vc1_1ref_mvdata_vlc[imvtab];
1223 // interlaced p/b-picture cbpcy range is [1, 63]
1224 icbptab = get_bits(gb, 3);
1225 v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[icbptab];
1226 twomvbptab = get_bits(gb, 2);
1227 v->twomvbp_vlc = &ff_vc1_2mv_block_pattern_vlc[twomvbptab];
1228 fourmvbptab = get_bits(gb, 2);
1229 v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[fourmvbptab];
1231 v->mv_mode = get_bits1(gb) ? MV_PMODE_1MV : MV_PMODE_1MV_HPEL_BILIN;
1232 v->qs_last = v->s.quarter_sample;
1233 v->s.quarter_sample = (v->mv_mode == MV_PMODE_1MV);
1234 v->s.mspel = v->s.quarter_sample;
1235 status = bitplane_decoding(v->direct_mb_plane, &v->dmb_is_raw, v);
1238 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Direct Type plane encoding: "
1239 "Imode: %i, Invert: %i\n", status>>1, status&1);
1240 status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
1243 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
1244 "Imode: %i, Invert: %i\n", status>>1, status&1);
1245 v->s.mv_table_index = get_bits(gb, 2);
1246 v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];
1250 av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
1251 vop_dquant_decoding(v);
1255 if (v->vstransform) {
1256 v->ttmbf = get_bits1(gb);
1258 v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
1267 if (v->fcm != PROGRESSIVE && !v->s.quarter_sample) {
1273 v->c_ac_table_index = decode012(gb);
1274 if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI) {
1275 v->y_ac_table_index = decode012(gb);
1278 v->s.dc_table_index = get_bits1(gb);
1279 if ((v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI)
1281 av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
1282 vop_dquant_decoding(v);
1286 if (v->s.pict_type == AV_PICTURE_TYPE_BI) {
1287 v->s.pict_type = AV_PICTURE_TYPE_B;
1293 static const uint32_t vc1_ac_tables[AC_MODES][186][2] = {
1295 { 0x0001, 2}, { 0x0005, 3}, { 0x000D, 4}, { 0x0012, 5}, { 0x000E, 6}, { 0x0015, 7},
1296 { 0x0013, 8}, { 0x003F, 8}, { 0x004B, 9}, { 0x011F, 9}, { 0x00B8, 10}, { 0x03E3, 10},
1297 { 0x0172, 11}, { 0x024D, 12}, { 0x03DA, 12}, { 0x02DD, 13}, { 0x1F55, 13}, { 0x05B9, 14},
1298 { 0x3EAE, 14}, { 0x0000, 4}, { 0x0010, 5}, { 0x0008, 7}, { 0x0020, 8}, { 0x0029, 9},
1299 { 0x01F4, 9}, { 0x0233, 10}, { 0x01E0, 11}, { 0x012A, 12}, { 0x03DD, 12}, { 0x050A, 13},
1300 { 0x1F29, 13}, { 0x0A42, 14}, { 0x1272, 15}, { 0x1737, 15}, { 0x0003, 5}, { 0x0011, 7},
1301 { 0x00C4, 8}, { 0x004B, 10}, { 0x00B4, 11}, { 0x07D4, 11}, { 0x0345, 12}, { 0x02D7, 13},
1302 { 0x07BF, 13}, { 0x0938, 14}, { 0x0BBB, 14}, { 0x095E, 15}, { 0x0013, 5}, { 0x0078, 7},
1303 { 0x0069, 9}, { 0x0232, 10}, { 0x0461, 11}, { 0x03EC, 12}, { 0x0520, 13}, { 0x1F2A, 13},
1304 { 0x3E50, 14}, { 0x3E51, 14}, { 0x1486, 15}, { 0x000C, 6}, { 0x0024, 9}, { 0x0094, 11},
1305 { 0x08C0, 12}, { 0x0F09, 14}, { 0x1EF0, 15}, { 0x003D, 6}, { 0x0053, 9}, { 0x01A0, 11},
1306 { 0x02D6, 13}, { 0x0F08, 14}, { 0x0013, 7}, { 0x007C, 9}, { 0x07C1, 11}, { 0x04AC, 14},
1307 { 0x001B, 7}, { 0x00A0, 10}, { 0x0344, 12}, { 0x0F79, 14}, { 0x0079, 7}, { 0x03E1, 10},
1308 { 0x02D4, 13}, { 0x2306, 14}, { 0x0021, 8}, { 0x023C, 10}, { 0x0FAE, 12}, { 0x23DE, 14},
1309 { 0x0035, 8}, { 0x0175, 11}, { 0x07B3, 13}, { 0x00C5, 8}, { 0x0174, 11}, { 0x0785, 13},
1310 { 0x0048, 9}, { 0x01A3, 11}, { 0x049E, 13}, { 0x002C, 9}, { 0x00FA, 10}, { 0x07D6, 11},
1311 { 0x0092, 10}, { 0x05CC, 13}, { 0x1EF1, 15}, { 0x00A3, 10}, { 0x03ED, 12}, { 0x093E, 14},
1312 { 0x01E2, 11}, { 0x1273, 15}, { 0x07C4, 11}, { 0x1487, 15}, { 0x0291, 12}, { 0x0293, 12},
1313 { 0x0F8A, 12}, { 0x0509, 13}, { 0x0508, 13}, { 0x078D, 13}, { 0x07BE, 13}, { 0x078C, 13},
1314 { 0x04AE, 14}, { 0x0BBA, 14}, { 0x2307, 14}, { 0x0B9A, 14}, { 0x1736, 15}, { 0x000E, 4},
1315 { 0x0045, 7}, { 0x01F3, 9}, { 0x047A, 11}, { 0x05DC, 13}, { 0x23DF, 14}, { 0x0019, 5},
1316 { 0x0028, 9}, { 0x0176, 11}, { 0x049D, 13}, { 0x23DD, 14}, { 0x0030, 6}, { 0x00A2, 10},
1317 { 0x02EF, 12}, { 0x05B8, 14}, { 0x003F, 6}, { 0x00A5, 10}, { 0x03DB, 12}, { 0x093F, 14},
1318 { 0x0044, 7}, { 0x07CB, 11}, { 0x095F, 15}, { 0x0063, 7}, { 0x03C3, 12}, { 0x0015, 8},
1319 { 0x08F6, 12}, { 0x0017, 8}, { 0x0498, 13}, { 0x002C, 8}, { 0x07B2, 13}, { 0x002F, 8},
1320 { 0x1F54, 13}, { 0x008D, 8}, { 0x07BD, 13}, { 0x008E, 8}, { 0x1182, 13}, { 0x00FB, 8},
1321 { 0x050B, 13}, { 0x002D, 8}, { 0x07C0, 11}, { 0x0079, 9}, { 0x1F5F, 13}, { 0x007A, 9},
1322 { 0x1F56, 13}, { 0x0231, 10}, { 0x03E4, 10}, { 0x01A1, 11}, { 0x0143, 11}, { 0x01F7, 11},
1323 { 0x016F, 12}, { 0x0292, 12}, { 0x02E7, 12}, { 0x016C, 12}, { 0x016D, 12}, { 0x03DC, 12},
1324 { 0x0F8B, 12}, { 0x0499, 13}, { 0x03D8, 12}, { 0x078E, 13}, { 0x02D5, 13}, { 0x1F5E, 13},
1325 { 0x1F2B, 13}, { 0x078F, 13}, { 0x04AD, 14}, { 0x3EAF, 14}, { 0x23DC, 14}, { 0x004A, 9}
1328 { 0x0000, 3}, { 0x0003, 4}, { 0x000B, 5}, { 0x0014, 6}, { 0x003F, 6}, { 0x005D, 7},
1329 { 0x00A2, 8}, { 0x00AC, 9}, { 0x016E, 9}, { 0x020A, 10}, { 0x02E2, 10}, { 0x0432, 11},
1330 { 0x05C9, 11}, { 0x0827, 12}, { 0x0B54, 12}, { 0x04E6, 13}, { 0x105F, 13}, { 0x172A, 13},
1331 { 0x20B2, 14}, { 0x2D4E, 14}, { 0x39F0, 14}, { 0x4175, 15}, { 0x5A9E, 15}, { 0x0004, 4},
1332 { 0x001E, 5}, { 0x0042, 7}, { 0x00B6, 8}, { 0x0173, 9}, { 0x0395, 10}, { 0x072E, 11},
1333 { 0x0B94, 12}, { 0x16A4, 13}, { 0x20B3, 14}, { 0x2E45, 14}, { 0x0005, 5}, { 0x0040, 7},
1334 { 0x0049, 9}, { 0x028F, 10}, { 0x05CB, 11}, { 0x048A, 13}, { 0x09DD, 14}, { 0x73E2, 15},
1335 { 0x0018, 5}, { 0x0025, 8}, { 0x008A, 10}, { 0x051B, 11}, { 0x0E5F, 12}, { 0x09C9, 14},
1336 { 0x139C, 15}, { 0x0029, 6}, { 0x004F, 9}, { 0x0412, 11}, { 0x048D, 13}, { 0x2E41, 14},
1337 { 0x0038, 6}, { 0x010E, 9}, { 0x05A8, 11}, { 0x105C, 13}, { 0x39F2, 14}, { 0x0058, 7},
1338 { 0x021F, 10}, { 0x0E7E, 12}, { 0x39FF, 14}, { 0x0023, 8}, { 0x02E3, 10}, { 0x04E5, 13},
1339 { 0x2E40, 14}, { 0x00A1, 8}, { 0x05BE, 11}, { 0x09C8, 14}, { 0x0083, 8}, { 0x013A, 11},
1340 { 0x1721, 13}, { 0x0044, 9}, { 0x0276, 12}, { 0x39F6, 14}, { 0x008B, 10}, { 0x04EF, 13},
1341 { 0x5A9B, 15}, { 0x0208, 10}, { 0x1CFE, 13}, { 0x0399, 10}, { 0x1CB4, 13}, { 0x039E, 10},
1342 { 0x39F3, 14}, { 0x05AB, 11}, { 0x73E3, 15}, { 0x0737, 11}, { 0x5A9F, 15}, { 0x082D, 12},
1343 { 0x0E69, 12}, { 0x0E68, 12}, { 0x0433, 11}, { 0x0B7B, 12}, { 0x2DF8, 14}, { 0x2E56, 14},
1344 { 0x2E57, 14}, { 0x39F7, 14}, { 0x51A5, 15}, { 0x0003, 3}, { 0x002A, 6}, { 0x00E4, 8},
1345 { 0x028E, 10}, { 0x0735, 11}, { 0x1058, 13}, { 0x1CFA, 13}, { 0x2DF9, 14}, { 0x4174, 15},
1346 { 0x0009, 4}, { 0x0054, 8}, { 0x0398, 10}, { 0x048B, 13}, { 0x139D, 15}, { 0x000D, 4},
1347 { 0x00AD, 9}, { 0x0826, 12}, { 0x2D4C, 14}, { 0x0011, 5}, { 0x016B, 9}, { 0x0B7F, 12},
1348 { 0x51A4, 15}, { 0x0019, 5}, { 0x021B, 10}, { 0x16FD, 13}, { 0x001D, 5}, { 0x0394, 10},
1349 { 0x28D3, 14}, { 0x002B, 6}, { 0x05BC, 11}, { 0x5A9A, 15}, { 0x002F, 6}, { 0x0247, 12},
1350 { 0x0010, 7}, { 0x0A35, 12}, { 0x003E, 6}, { 0x0B7A, 12}, { 0x0059, 7}, { 0x105E, 13},
1351 { 0x0026, 8}, { 0x09CF, 14}, { 0x0055, 8}, { 0x1CB5, 13}, { 0x0057, 8}, { 0x0E5B, 12},
1352 { 0x00A0, 8}, { 0x1468, 13}, { 0x0170, 9}, { 0x0090, 10}, { 0x01CE, 9}, { 0x021A, 10},
1353 { 0x0218, 10}, { 0x0168, 9}, { 0x021E, 10}, { 0x0244, 12}, { 0x0736, 11}, { 0x0138, 11},
1354 { 0x0519, 11}, { 0x0E5E, 12}, { 0x072C, 11}, { 0x0B55, 12}, { 0x09DC, 14}, { 0x20BB, 14},
1355 { 0x048C, 13}, { 0x1723, 13}, { 0x2E44, 14}, { 0x16A5, 13}, { 0x0518, 11}, { 0x39FE, 14},
1359 { 0x0001, 2}, { 0x0006, 3}, { 0x000F, 4}, { 0x0016, 5}, { 0x0020, 6}, { 0x0018, 7},
1360 { 0x0008, 8}, { 0x009A, 8}, { 0x0056, 9}, { 0x013E, 9}, { 0x00F0, 10}, { 0x03A5, 10},
1361 { 0x0077, 11}, { 0x01EF, 11}, { 0x009A, 12}, { 0x005D, 13}, { 0x0001, 4}, { 0x0011, 5},
1362 { 0x0002, 7}, { 0x000B, 8}, { 0x0012, 9}, { 0x01D6, 9}, { 0x027E, 10}, { 0x0191, 11},
1363 { 0x00EA, 12}, { 0x03DC, 12}, { 0x013B, 13}, { 0x0004, 5}, { 0x0014, 7}, { 0x009E, 8},
1364 { 0x0009, 10}, { 0x01AC, 11}, { 0x01E2, 11}, { 0x03CA, 12}, { 0x005F, 13}, { 0x0017, 5},
1365 { 0x004E, 7}, { 0x005E, 9}, { 0x00F3, 10}, { 0x01AD, 11}, { 0x00EC, 12}, { 0x05F0, 13},
1366 { 0x000E, 6}, { 0x00E1, 8}, { 0x03A4, 10}, { 0x009C, 12}, { 0x013D, 13}, { 0x003B, 6},
1367 { 0x001C, 9}, { 0x0014, 11}, { 0x09BE, 12}, { 0x0006, 7}, { 0x007A, 9}, { 0x0190, 11},
1368 { 0x0137, 13}, { 0x001B, 7}, { 0x0008, 10}, { 0x075C, 11}, { 0x0071, 7}, { 0x00D7, 10},
1369 { 0x09BF, 12}, { 0x0007, 8}, { 0x00AF, 10}, { 0x04CC, 11}, { 0x0034, 8}, { 0x0265, 10},
1370 { 0x009F, 12}, { 0x00E0, 8}, { 0x0016, 11}, { 0x0327, 12}, { 0x0015, 9}, { 0x017D, 11},
1371 { 0x0EBB, 12}, { 0x0014, 9}, { 0x00F6, 10}, { 0x01E4, 11}, { 0x00CB, 10}, { 0x099D, 12},
1372 { 0x00CA, 10}, { 0x02FC, 12}, { 0x017F, 11}, { 0x04CD, 11}, { 0x02FD, 12}, { 0x04FE, 11},
1373 { 0x013A, 13}, { 0x000A, 4}, { 0x0042, 7}, { 0x01D3, 9}, { 0x04DD, 11}, { 0x0012, 5},
1374 { 0x00E8, 8}, { 0x004C, 11}, { 0x0136, 13}, { 0x0039, 6}, { 0x0264, 10}, { 0x0EBA, 12},
1375 { 0x0000, 7}, { 0x00AE, 10}, { 0x099C, 12}, { 0x001F, 7}, { 0x04DE, 11}, { 0x0043, 7},
1376 { 0x04DC, 11}, { 0x0003, 8}, { 0x03CB, 12}, { 0x0006, 8}, { 0x099E, 12}, { 0x002A, 8},
1377 { 0x05F1, 13}, { 0x000F, 8}, { 0x09FE, 12}, { 0x0033, 8}, { 0x09FF, 12}, { 0x0098, 8},
1378 { 0x099F, 12}, { 0x00EA, 8}, { 0x013C, 13}, { 0x002E, 8}, { 0x0192, 11}, { 0x0136, 9},
1379 { 0x006A, 9}, { 0x0015, 11}, { 0x03AF, 10}, { 0x01E3, 11}, { 0x0074, 11}, { 0x00EB, 12},
1380 { 0x02F9, 12}, { 0x005C, 13}, { 0x00ED, 12}, { 0x03DD, 12}, { 0x0326, 12}, { 0x005E, 13},
1384 { 0x0004, 3}, { 0x0014, 5}, { 0x0017, 7}, { 0x007F, 8}, { 0x0154, 9}, { 0x01F2, 10},
1385 { 0x00BF, 11}, { 0x0065, 12}, { 0x0AAA, 12}, { 0x0630, 13}, { 0x1597, 13}, { 0x03B7, 14},
1386 { 0x2B22, 14}, { 0x0BE6, 15}, { 0x000B, 4}, { 0x0037, 7}, { 0x0062, 9}, { 0x0007, 11},
1387 { 0x0166, 12}, { 0x00CE, 13}, { 0x1590, 13}, { 0x05F6, 14}, { 0x0BE7, 15}, { 0x0007, 5},
1388 { 0x006D, 8}, { 0x0003, 11}, { 0x031F, 12}, { 0x05F2, 14}, { 0x0002, 6}, { 0x0061, 9},
1389 { 0x0055, 12}, { 0x01DF, 14}, { 0x001A, 6}, { 0x001E, 10}, { 0x0AC9, 12}, { 0x2B23, 14},
1390 { 0x001E, 6}, { 0x001F, 10}, { 0x0AC3, 12}, { 0x2B2B, 14}, { 0x0006, 7}, { 0x0004, 11},
1391 { 0x02F8, 13}, { 0x0019, 7}, { 0x0006, 11}, { 0x063D, 13}, { 0x0057, 7}, { 0x0182, 11},
1392 { 0x2AA2, 14}, { 0x0004, 8}, { 0x0180, 11}, { 0x059C, 14}, { 0x007D, 8}, { 0x0164, 12},
1393 { 0x076D, 15}, { 0x0002, 9}, { 0x018D, 11}, { 0x1581, 13}, { 0x00AD, 8}, { 0x0060, 12},
1394 { 0x0C67, 14}, { 0x001C, 9}, { 0x00EE, 13}, { 0x0003, 9}, { 0x02CF, 13}, { 0x00D9, 9},
1395 { 0x1580, 13}, { 0x0002, 11}, { 0x0183, 11}, { 0x0057, 12}, { 0x0061, 12}, { 0x0031, 11},
1396 { 0x0066, 12}, { 0x0631, 13}, { 0x0632, 13}, { 0x00AC, 13}, { 0x031D, 12}, { 0x0076, 12},
1397 { 0x003A, 11}, { 0x0165, 12}, { 0x0C66, 14}, { 0x0003, 2}, { 0x0054, 7}, { 0x02AB, 10},
1398 { 0x0016, 13}, { 0x05F7, 14}, { 0x0005, 4}, { 0x00F8, 9}, { 0x0AA9, 12}, { 0x005F, 15},
1399 { 0x0004, 4}, { 0x001C, 10}, { 0x1550, 13}, { 0x0004, 5}, { 0x0077, 11}, { 0x076C, 15},
1400 { 0x000E, 5}, { 0x000A, 12}, { 0x000C, 5}, { 0x0562, 11}, { 0x0004, 6}, { 0x031C, 12},
1401 { 0x0006, 6}, { 0x00C8, 13}, { 0x000D, 6}, { 0x01DA, 13}, { 0x0007, 6}, { 0x00C9, 13},
1402 { 0x0001, 7}, { 0x002E, 14}, { 0x0014, 7}, { 0x1596, 13}, { 0x000A, 7}, { 0x0AC2, 12},
1403 { 0x0016, 7}, { 0x015B, 14}, { 0x0015, 7}, { 0x015A, 14}, { 0x000F, 8}, { 0x005E, 15},
1404 { 0x007E, 8}, { 0x00AB, 8}, { 0x002D, 9}, { 0x00D8, 9}, { 0x000B, 9}, { 0x0014, 10},
1405 { 0x02B3, 10}, { 0x01F3, 10}, { 0x003A, 10}, { 0x0000, 10}, { 0x0058, 10}, { 0x002E, 9},
1406 { 0x005E, 10}, { 0x0563, 11}, { 0x00EC, 12}, { 0x0054, 12}, { 0x0AC1, 12}, { 0x1556, 13},
1407 { 0x02FA, 13}, { 0x0181, 11}, { 0x1557, 13}, { 0x059D, 14}, { 0x2AA3, 14}, { 0x2B2A, 14},
1408 { 0x01DE, 14}, { 0x063C, 13}, { 0x00CF, 13}, { 0x1594, 13}, { 0x000D, 9}
1411 { 0x0002, 2}, { 0x0006, 3}, { 0x000F, 4}, { 0x000D, 5}, { 0x000C, 5}, { 0x0015, 6},
1412 { 0x0013, 6}, { 0x0012, 6}, { 0x0017, 7}, { 0x001F, 8}, { 0x001E, 8}, { 0x001D, 8},
1413 { 0x0025, 9}, { 0x0024, 9}, { 0x0023, 9}, { 0x0021, 9}, { 0x0021, 10}, { 0x0020, 10},
1414 { 0x000F, 10}, { 0x000E, 10}, { 0x0007, 11}, { 0x0006, 11}, { 0x0020, 11}, { 0x0021, 11},
1415 { 0x0050, 12}, { 0x0051, 12}, { 0x0052, 12}, { 0x000E, 4}, { 0x0014, 6}, { 0x0016, 7},
1416 { 0x001C, 8}, { 0x0020, 9}, { 0x001F, 9}, { 0x000D, 10}, { 0x0022, 11}, { 0x0053, 12},
1417 { 0x0055, 12}, { 0x000B, 5}, { 0x0015, 7}, { 0x001E, 9}, { 0x000C, 10}, { 0x0056, 12},
1418 { 0x0011, 6}, { 0x001B, 8}, { 0x001D, 9}, { 0x000B, 10}, { 0x0010, 6}, { 0x0022, 9},
1419 { 0x000A, 10}, { 0x000D, 6}, { 0x001C, 9}, { 0x0008, 10}, { 0x0012, 7}, { 0x001B, 9},
1420 { 0x0054, 12}, { 0x0014, 7}, { 0x001A, 9}, { 0x0057, 12}, { 0x0019, 8}, { 0x0009, 10},
1421 { 0x0018, 8}, { 0x0023, 11}, { 0x0017, 8}, { 0x0019, 9}, { 0x0018, 9}, { 0x0007, 10},
1422 { 0x0058, 12}, { 0x0007, 4}, { 0x000C, 6}, { 0x0016, 8}, { 0x0017, 9}, { 0x0006, 10},
1423 { 0x0005, 11}, { 0x0004, 11}, { 0x0059, 12}, { 0x000F, 6}, { 0x0016, 9}, { 0x0005, 10},
1424 { 0x000E, 6}, { 0x0004, 10}, { 0x0011, 7}, { 0x0024, 11}, { 0x0010, 7}, { 0x0025, 11},
1425 { 0x0013, 7}, { 0x005A, 12}, { 0x0015, 8}, { 0x005B, 12}, { 0x0014, 8}, { 0x0013, 8},
1426 { 0x001A, 8}, { 0x0015, 9}, { 0x0014, 9}, { 0x0013, 9}, { 0x0012, 9}, { 0x0011, 9},
1427 { 0x0026, 11}, { 0x0027, 11}, { 0x005C, 12}, { 0x005D, 12}, { 0x005E, 12}, { 0x005F, 12},
1431 { 0x0002, 2}, { 0x000F, 4}, { 0x0015, 6}, { 0x0017, 7}, { 0x001F, 8}, { 0x0025, 9},
1432 { 0x0024, 9}, { 0x0021, 10}, { 0x0020, 10}, { 0x0007, 11}, { 0x0006, 11}, { 0x0020, 11},
1433 { 0x0006, 3}, { 0x0014, 6}, { 0x001E, 8}, { 0x000F, 10}, { 0x0021, 11}, { 0x0050, 12},
1434 { 0x000E, 4}, { 0x001D, 8}, { 0x000E, 10}, { 0x0051, 12}, { 0x000D, 5}, { 0x0023, 9},
1435 { 0x000D, 10}, { 0x000C, 5}, { 0x0022, 9}, { 0x0052, 12}, { 0x000B, 5}, { 0x000C, 10},
1436 { 0x0053, 12}, { 0x0013, 6}, { 0x000B, 10}, { 0x0054, 12}, { 0x0012, 6}, { 0x000A, 10},
1437 { 0x0011, 6}, { 0x0009, 10}, { 0x0010, 6}, { 0x0008, 10}, { 0x0016, 7}, { 0x0055, 12},
1438 { 0x0015, 7}, { 0x0014, 7}, { 0x001C, 8}, { 0x001B, 8}, { 0x0021, 9}, { 0x0020, 9},
1439 { 0x001F, 9}, { 0x001E, 9}, { 0x001D, 9}, { 0x001C, 9}, { 0x001B, 9}, { 0x001A, 9},
1440 { 0x0022, 11}, { 0x0023, 11}, { 0x0056, 12}, { 0x0057, 12}, { 0x0007, 4}, { 0x0019, 9},
1441 { 0x0005, 11}, { 0x000F, 6}, { 0x0004, 11}, { 0x000E, 6}, { 0x000D, 6}, { 0x000C, 6},
1442 { 0x0013, 7}, { 0x0012, 7}, { 0x0011, 7}, { 0x0010, 7}, { 0x001A, 8}, { 0x0019, 8},
1443 { 0x0018, 8}, { 0x0017, 8}, { 0x0016, 8}, { 0x0015, 8}, { 0x0014, 8}, { 0x0013, 8},
1444 { 0x0018, 9}, { 0x0017, 9}, { 0x0016, 9}, { 0x0015, 9}, { 0x0014, 9}, { 0x0013, 9},
1445 { 0x0012, 9}, { 0x0011, 9}, { 0x0007, 10}, { 0x0006, 10}, { 0x0005, 10}, { 0x0004, 10},
1446 { 0x0024, 11}, { 0x0025, 11}, { 0x0026, 11}, { 0x0027, 11}, { 0x0058, 12}, { 0x0059, 12},
1447 { 0x005A, 12}, { 0x005B, 12}, { 0x005C, 12}, { 0x005D, 12}, { 0x005E, 12}, { 0x005F, 12},
1451 { 0x0000, 2}, { 0x0003, 3}, { 0x000D, 4}, { 0x0005, 4}, { 0x001C, 5}, { 0x0016, 5},
1452 { 0x003F, 6}, { 0x003A, 6}, { 0x002E, 6}, { 0x0022, 6}, { 0x007B, 7}, { 0x0067, 7},
1453 { 0x005F, 7}, { 0x0047, 7}, { 0x0026, 7}, { 0x00EF, 8}, { 0x00CD, 8}, { 0x00C1, 8},
1454 { 0x00A9, 8}, { 0x004F, 8}, { 0x01F2, 9}, { 0x01DD, 9}, { 0x0199, 9}, { 0x0185, 9},
1455 { 0x015D, 9}, { 0x011B, 9}, { 0x03EF, 10}, { 0x03E1, 10}, { 0x03C8, 10}, { 0x0331, 10},
1456 { 0x0303, 10}, { 0x02F1, 10}, { 0x02A0, 10}, { 0x0233, 10}, { 0x0126, 10}, { 0x07C0, 11},
1457 { 0x076F, 11}, { 0x076C, 11}, { 0x0661, 11}, { 0x0604, 11}, { 0x0572, 11}, { 0x0551, 11},
1458 { 0x046A, 11}, { 0x0274, 11}, { 0x0F27, 12}, { 0x0F24, 12}, { 0x0EDB, 12}, { 0x0C8E, 12},
1459 { 0x0C0B, 12}, { 0x0C0A, 12}, { 0x0AE3, 12}, { 0x08D6, 12}, { 0x0490, 12}, { 0x0495, 12},
1460 { 0x1F19, 13}, { 0x1DB5, 13}, { 0x0009, 4}, { 0x0010, 5}, { 0x0029, 6}, { 0x0062, 7},
1461 { 0x00F3, 8}, { 0x00AD, 8}, { 0x01E5, 9}, { 0x0179, 9}, { 0x009C, 9}, { 0x03B1, 10},
1462 { 0x02AE, 10}, { 0x0127, 10}, { 0x076E, 11}, { 0x0570, 11}, { 0x0275, 11}, { 0x0F25, 12},
1463 { 0x0EC0, 12}, { 0x0AA0, 12}, { 0x08D7, 12}, { 0x1E4C, 13}, { 0x0008, 5}, { 0x0063, 7},
1464 { 0x00AF, 8}, { 0x017B, 9}, { 0x03B3, 10}, { 0x07DD, 11}, { 0x0640, 11}, { 0x0F8D, 12},
1465 { 0x0BC1, 12}, { 0x0491, 12}, { 0x0028, 6}, { 0x00C3, 8}, { 0x0151, 9}, { 0x02A1, 10},
1466 { 0x0573, 11}, { 0x0EC3, 12}, { 0x1F35, 13}, { 0x0065, 7}, { 0x01DA, 9}, { 0x02AF, 10},
1467 { 0x0277, 11}, { 0x08C9, 12}, { 0x1781, 13}, { 0x0025, 7}, { 0x0118, 9}, { 0x0646, 11},
1468 { 0x0AA6, 12}, { 0x1780, 13}, { 0x00C9, 8}, { 0x0321, 10}, { 0x0F9B, 12}, { 0x191E, 13},
1469 { 0x0048, 8}, { 0x07CC, 11}, { 0x0AA1, 12}, { 0x0180, 9}, { 0x0465, 11}, { 0x1905, 13},
1470 { 0x03E2, 10}, { 0x0EC1, 12}, { 0x3C9B, 14}, { 0x02F4, 10}, { 0x08C8, 12}, { 0x07C1, 11},
1471 { 0x0928, 13}, { 0x05E1, 11}, { 0x320D, 14}, { 0x0EC2, 12}, { 0x6418, 15}, { 0x1F34, 13},
1472 { 0x0078, 7}, { 0x0155, 9}, { 0x0552, 11}, { 0x191F, 13}, { 0x00FA, 8}, { 0x07DC, 11},
1473 { 0x1907, 13}, { 0x00AC, 8}, { 0x0249, 11}, { 0x13B1, 14}, { 0x01F6, 9}, { 0x0AE2, 12},
1474 { 0x01DC, 9}, { 0x04ED, 12}, { 0x0184, 9}, { 0x1904, 13}, { 0x0156, 9}, { 0x09D9, 13},
1475 { 0x03E7, 10}, { 0x0929, 13}, { 0x03B2, 10}, { 0x3B68, 14}, { 0x02F5, 10}, { 0x13B0, 14},
1476 { 0x0322, 10}, { 0x3B69, 14}, { 0x0234, 10}, { 0x7935, 15}, { 0x07C7, 11}, { 0xC833, 16},
1477 { 0x0660, 11}, { 0x7934, 15}, { 0x024B, 11}, { 0xC832, 16}, { 0x0AA7, 12}, { 0x1F18, 13},
1481 { 0x0002, 2}, { 0x0000, 3}, { 0x001E, 5}, { 0x0004, 5}, { 0x0012, 6}, { 0x0070, 7},
1482 { 0x001A, 7}, { 0x005F, 8}, { 0x0047, 8}, { 0x01D3, 9}, { 0x00B5, 9}, { 0x0057, 9},
1483 { 0x03B5, 10}, { 0x016D, 10}, { 0x0162, 10}, { 0x07CE, 11}, { 0x0719, 11}, { 0x0691, 11},
1484 { 0x02C6, 11}, { 0x0156, 11}, { 0x0F92, 12}, { 0x0D2E, 12}, { 0x0D20, 12}, { 0x059E, 12},
1485 { 0x0468, 12}, { 0x02A6, 12}, { 0x1DA2, 13}, { 0x1C60, 13}, { 0x1A43, 13}, { 0x0B1D, 13},
1486 { 0x08C0, 13}, { 0x055D, 13}, { 0x0003, 3}, { 0x000A, 5}, { 0x0077, 7}, { 0x00E5, 8},
1487 { 0x01D9, 9}, { 0x03E5, 10}, { 0x0166, 10}, { 0x0694, 11}, { 0x0152, 11}, { 0x059F, 12},
1488 { 0x1F3C, 13}, { 0x1A4B, 13}, { 0x055E, 13}, { 0x000C, 4}, { 0x007D, 7}, { 0x0044, 8},
1489 { 0x03E0, 10}, { 0x0769, 11}, { 0x0E31, 12}, { 0x1F26, 13}, { 0x055C, 13}, { 0x001B, 5},
1490 { 0x00E2, 8}, { 0x03A5, 10}, { 0x02C9, 11}, { 0x1F23, 13}, { 0x3B47, 14}, { 0x0007, 5},
1491 { 0x01D8, 9}, { 0x02D8, 11}, { 0x1F27, 13}, { 0x3494, 14}, { 0x0035, 6}, { 0x03E1, 10},
1492 { 0x059C, 12}, { 0x38C3, 14}, { 0x000C, 6}, { 0x0165, 10}, { 0x1D23, 13}, { 0x1638, 14},
1493 { 0x0068, 7}, { 0x0693, 11}, { 0x3A45, 14}, { 0x0020, 7}, { 0x0F90, 12}, { 0x7CF6, 15},
1494 { 0x00E8, 8}, { 0x058F, 12}, { 0x2CEF, 15}, { 0x0045, 8}, { 0x0B3A, 13}, { 0x01F1, 9},
1495 { 0x3B46, 14}, { 0x01A7, 9}, { 0x1676, 14}, { 0x0056, 9}, { 0x692A, 15}, { 0x038D, 10},
1496 { 0xE309, 16}, { 0x00AA, 10}, { 0x1C611, 17}, { 0x02DF, 11}, { 0xB3B9, 17}, { 0x02C8, 11},
1497 { 0x38C20, 18}, { 0x01B0, 11}, { 0x16390, 18}, { 0x0F9F, 12}, { 0x16771, 18}, { 0x0ED0, 12},
1498 { 0x71843, 19}, { 0x0D2A, 12}, { 0xF9E8C, 20}, { 0x0461, 12}, { 0xF9E8E, 20}, { 0x0B67, 13},
1499 { 0x055F, 13}, { 0x003F, 6}, { 0x006D, 9}, { 0x0E90, 12}, { 0x054E, 13}, { 0x0013, 6},
1500 { 0x0119, 10}, { 0x0B66, 13}, { 0x000B, 6}, { 0x0235, 11}, { 0x7CF5, 15}, { 0x0075, 7},
1501 { 0x0D24, 12}, { 0xF9E9, 16}, { 0x002E, 7}, { 0x1F22, 13}, { 0x0021, 7}, { 0x054F, 13},
1502 { 0x0014, 7}, { 0x3A44, 14}, { 0x00E4, 8}, { 0x7CF7, 15}, { 0x005E, 8}, { 0x7185, 15},
1503 { 0x0037, 8}, { 0x2C73, 15}, { 0x01DB, 9}, { 0x59DD, 16}, { 0x01C7, 9}, { 0x692B, 15},
1504 { 0x01A6, 9}, { 0x58E5, 16}, { 0x00B4, 9}, { 0x1F3D0, 17}, { 0x00B0, 9}, { 0xB1C9, 17},
1505 { 0x03E6, 10}, { 0x16770, 18}, { 0x016E, 10}, { 0x3E7A2, 18}, { 0x011B, 10}, { 0xF9E8D, 20},
1506 { 0x00D9, 10}, { 0xF9E8F, 20}, { 0x00A8, 10}, { 0x2C723, 19}, { 0x0749, 11}, { 0xE3084, 20},
1507 { 0x0696, 11}, { 0x58E45, 20}, { 0x02DE, 11}, { 0xB1C88, 21}, { 0x0231, 11}, { 0x1C610A, 21},
1508 { 0x01B1, 11}, { 0x71842D, 23}, { 0x0D2B, 12}, { 0x38C217, 22}, { 0x0D2F, 12}, { 0x163913, 22},
1509 { 0x05B2, 12}, { 0x163912, 22}, { 0x0469, 12}, { 0x71842C, 23}, { 0x1A42, 13}, { 0x08C1, 13},
1514 static const uint16_t vlc_offs[] = {
1515 0, 520, 552, 616, 1128, 1160, 1224, 1740, 1772, 1836, 1900, 2436,
1516 2986, 3050, 3610, 4154, 4218, 4746, 5326, 5390, 5902, 6554, 7658, 8342,
1517 9304, 9988, 10630, 11234, 12174, 13006, 13560, 14232, 14786, 15432, 16350, 17522,
1518 20372, 21818, 22330, 22394, 23166, 23678, 23742, 24820, 25332, 25396, 26460, 26980,
1519 27048, 27592, 27600, 27608, 27616, 27624, 28224, 28258, 28290, 28802, 28834, 28866,
1520 29378, 29412, 29444, 29960, 29994, 30026, 30538, 30572, 30604, 31120, 31154, 31186,
1521 31714, 31746, 31778, 32306, 32340, 32372
1525 * Init VC-1 specific tables and VC1Context members
1526 * @param v The VC1Context to initialize
1529 int ff_vc1_init_common(VC1Context *v)
1531 static int done = 0;
1533 static VLC_TYPE vlc_table[32372][2];
1535 v->hrd_rate = v->hrd_buffer = NULL;
1539 INIT_VLC_STATIC(&ff_vc1_bfraction_vlc, VC1_BFRACTION_VLC_BITS, 23,
1540 ff_vc1_bfraction_bits, 1, 1,
1541 ff_vc1_bfraction_codes, 1, 1, 1 << VC1_BFRACTION_VLC_BITS);
1542 INIT_VLC_STATIC(&ff_vc1_norm2_vlc, VC1_NORM2_VLC_BITS, 4,
1543 ff_vc1_norm2_bits, 1, 1,
1544 ff_vc1_norm2_codes, 1, 1, 1 << VC1_NORM2_VLC_BITS);
1545 INIT_VLC_STATIC(&ff_vc1_norm6_vlc, VC1_NORM6_VLC_BITS, 64,
1546 ff_vc1_norm6_bits, 1, 1,
1547 ff_vc1_norm6_codes, 2, 2, 556);
1548 INIT_VLC_STATIC(&ff_vc1_imode_vlc, VC1_IMODE_VLC_BITS, 7,
1549 ff_vc1_imode_bits, 1, 1,
1550 ff_vc1_imode_codes, 1, 1, 1 << VC1_IMODE_VLC_BITS);
1551 for (i = 0; i < 3; i++) {
1552 ff_vc1_ttmb_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 0]];
1553 ff_vc1_ttmb_vlc[i].table_allocated = vlc_offs[i * 3 + 1] - vlc_offs[i * 3 + 0];
1554 init_vlc(&ff_vc1_ttmb_vlc[i], VC1_TTMB_VLC_BITS, 16,
1555 ff_vc1_ttmb_bits[i], 1, 1,
1556 ff_vc1_ttmb_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
1557 ff_vc1_ttblk_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 1]];
1558 ff_vc1_ttblk_vlc[i].table_allocated = vlc_offs[i * 3 + 2] - vlc_offs[i * 3 + 1];
1559 init_vlc(&ff_vc1_ttblk_vlc[i], VC1_TTBLK_VLC_BITS, 8,
1560 ff_vc1_ttblk_bits[i], 1, 1,
1561 ff_vc1_ttblk_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1562 ff_vc1_subblkpat_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 2]];
1563 ff_vc1_subblkpat_vlc[i].table_allocated = vlc_offs[i * 3 + 3] - vlc_offs[i * 3 + 2];
1564 init_vlc(&ff_vc1_subblkpat_vlc[i], VC1_SUBBLKPAT_VLC_BITS, 15,
1565 ff_vc1_subblkpat_bits[i], 1, 1,
1566 ff_vc1_subblkpat_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1568 for (i = 0; i < 4; i++) {
1569 ff_vc1_4mv_block_pattern_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 9]];
1570 ff_vc1_4mv_block_pattern_vlc[i].table_allocated = vlc_offs[i * 3 + 10] - vlc_offs[i * 3 + 9];
1571 init_vlc(&ff_vc1_4mv_block_pattern_vlc[i], VC1_4MV_BLOCK_PATTERN_VLC_BITS, 16,
1572 ff_vc1_4mv_block_pattern_bits[i], 1, 1,
1573 ff_vc1_4mv_block_pattern_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1574 ff_vc1_cbpcy_p_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 10]];
1575 ff_vc1_cbpcy_p_vlc[i].table_allocated = vlc_offs[i * 3 + 11] - vlc_offs[i * 3 + 10];
1576 init_vlc(&ff_vc1_cbpcy_p_vlc[i], VC1_CBPCY_P_VLC_BITS, 64,
1577 ff_vc1_cbpcy_p_bits[i], 1, 1,
1578 ff_vc1_cbpcy_p_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
1579 ff_vc1_mv_diff_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 11]];
1580 ff_vc1_mv_diff_vlc[i].table_allocated = vlc_offs[i * 3 + 12] - vlc_offs[i * 3 + 11];
1581 init_vlc(&ff_vc1_mv_diff_vlc[i], VC1_MV_DIFF_VLC_BITS, 73,
1582 ff_vc1_mv_diff_bits[i], 1, 1,
1583 ff_vc1_mv_diff_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
1585 for (i = 0; i < 8; i++) {
1586 ff_vc1_ac_coeff_table[i].table = &vlc_table[vlc_offs[i * 2 + 21]];
1587 ff_vc1_ac_coeff_table[i].table_allocated = vlc_offs[i * 2 + 22] - vlc_offs[i * 2 + 21];
1588 init_vlc(&ff_vc1_ac_coeff_table[i], AC_VLC_BITS, ff_vc1_ac_sizes[i],
1589 &vc1_ac_tables[i][0][1], 8, 4,
1590 &vc1_ac_tables[i][0][0], 8, 4, INIT_VLC_USE_NEW_STATIC);
1591 /* initialize interlaced MVDATA tables (2-Ref) */
1592 ff_vc1_2ref_mvdata_vlc[i].table = &vlc_table[vlc_offs[i * 2 + 22]];
1593 ff_vc1_2ref_mvdata_vlc[i].table_allocated = vlc_offs[i * 2 + 23] - vlc_offs[i * 2 + 22];
1594 init_vlc(&ff_vc1_2ref_mvdata_vlc[i], VC1_2REF_MVDATA_VLC_BITS, 126,
1595 ff_vc1_2ref_mvdata_bits[i], 1, 1,
1596 ff_vc1_2ref_mvdata_codes[i], 4, 4, INIT_VLC_USE_NEW_STATIC);
1598 for (i = 0; i < 4; i++) {
1599 /* initialize 4MV MBMODE VLC tables for interlaced frame P picture */
1600 ff_vc1_intfr_4mv_mbmode_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 37]];
1601 ff_vc1_intfr_4mv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 38] - vlc_offs[i * 3 + 37];
1602 init_vlc(&ff_vc1_intfr_4mv_mbmode_vlc[i], VC1_INTFR_4MV_MBMODE_VLC_BITS, 15,
1603 ff_vc1_intfr_4mv_mbmode_bits[i], 1, 1,
1604 ff_vc1_intfr_4mv_mbmode_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
1605 /* initialize NON-4MV MBMODE VLC tables for the same */
1606 ff_vc1_intfr_non4mv_mbmode_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 38]];
1607 ff_vc1_intfr_non4mv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 39] - vlc_offs[i * 3 + 38];
1608 init_vlc(&ff_vc1_intfr_non4mv_mbmode_vlc[i], VC1_INTFR_NON4MV_MBMODE_VLC_BITS, 9,
1609 ff_vc1_intfr_non4mv_mbmode_bits[i], 1, 1,
1610 ff_vc1_intfr_non4mv_mbmode_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1611 /* initialize interlaced MVDATA tables (1-Ref) */
1612 ff_vc1_1ref_mvdata_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 39]];
1613 ff_vc1_1ref_mvdata_vlc[i].table_allocated = vlc_offs[i * 3 + 40] - vlc_offs[i * 3 + 39];
1614 init_vlc(&ff_vc1_1ref_mvdata_vlc[i], VC1_1REF_MVDATA_VLC_BITS, 72,
1615 ff_vc1_1ref_mvdata_bits[i], 1, 1,
1616 ff_vc1_1ref_mvdata_codes[i], 4, 4, INIT_VLC_USE_NEW_STATIC);
1618 for (i = 0; i < 4; i++) {
1619 /* Initialize 2MV Block pattern VLC tables */
1620 ff_vc1_2mv_block_pattern_vlc[i].table = &vlc_table[vlc_offs[i + 49]];
1621 ff_vc1_2mv_block_pattern_vlc[i].table_allocated = vlc_offs[i + 50] - vlc_offs[i + 49];
1622 init_vlc(&ff_vc1_2mv_block_pattern_vlc[i], VC1_2MV_BLOCK_PATTERN_VLC_BITS, 4,
1623 ff_vc1_2mv_block_pattern_bits[i], 1, 1,
1624 ff_vc1_2mv_block_pattern_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1626 for (i = 0; i < 8; i++) {
1627 /* Initialize interlaced CBPCY VLC tables (Table 124 - Table 131) */
1628 ff_vc1_icbpcy_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 53]];
1629 ff_vc1_icbpcy_vlc[i].table_allocated = vlc_offs[i * 3 + 54] - vlc_offs[i * 3 + 53];
1630 init_vlc(&ff_vc1_icbpcy_vlc[i], VC1_ICBPCY_VLC_BITS, 63,
1631 ff_vc1_icbpcy_p_bits[i], 1, 1,
1632 ff_vc1_icbpcy_p_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
1633 /* Initialize interlaced field picture MBMODE VLC tables */
1634 ff_vc1_if_mmv_mbmode_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 54]];
1635 ff_vc1_if_mmv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 55] - vlc_offs[i * 3 + 54];
1636 init_vlc(&ff_vc1_if_mmv_mbmode_vlc[i], VC1_IF_MMV_MBMODE_VLC_BITS, 8,
1637 ff_vc1_if_mmv_mbmode_bits[i], 1, 1,
1638 ff_vc1_if_mmv_mbmode_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1639 ff_vc1_if_1mv_mbmode_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 55]];
1640 ff_vc1_if_1mv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 56] - vlc_offs[i * 3 + 55];
1641 init_vlc(&ff_vc1_if_1mv_mbmode_vlc[i], VC1_IF_1MV_MBMODE_VLC_BITS, 6,
1642 ff_vc1_if_1mv_mbmode_bits[i], 1, 1,
1643 ff_vc1_if_1mv_mbmode_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1648 /* Other defaults */
1650 v->mvrange = 0; /* 7.1.1.18, p80 */