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
50 /** Decode rows by checking if they are skipped
51 * @param plane Buffer to store decoded bits
52 * @param[in] width Width of this buffer
53 * @param[in] height Height of this buffer
54 * @param[in] stride of this buffer
56 static void decode_rowskip(uint8_t* plane, int width, int height, int stride,
61 for (y = 0; y < height; y++) {
62 if (!get_bits1(gb)) //rowskip
63 memset(plane, 0, width);
65 for (x = 0; x < width; x++)
66 plane[x] = get_bits1(gb);
71 /** Decode columns by checking if they are skipped
72 * @param plane Buffer to store decoded bits
73 * @param[in] width Width of this buffer
74 * @param[in] height Height of this buffer
75 * @param[in] stride of this buffer
76 * @todo FIXME: Optimize
78 static void decode_colskip(uint8_t* plane, int width, int height, int stride,
83 for (x = 0; x < width; x++) {
84 if (!get_bits1(gb)) //colskip
85 for (y = 0; y < height; y++)
88 for (y = 0; y < height; y++)
89 plane[y*stride] = get_bits1(gb);
94 /** Decode a bitplane's bits
95 * @param data bitplane where to store the decode bits
96 * @param[out] raw_flag pointer to the flag indicating that this bitplane is not coded explicitly
97 * @param v VC-1 context for bit reading and logging
99 * @todo FIXME: Optimize
101 static int bitplane_decoding(uint8_t* data, int *raw_flag, VC1Context *v)
103 GetBitContext *gb = &v->s.gb;
105 int imode, x, y, code, offset;
106 uint8_t invert, *planep = data;
107 int width, height, stride;
109 width = v->s.mb_width;
110 height = v->s.mb_height >> v->field_mode;
111 stride = v->s.mb_stride;
112 invert = get_bits1(gb);
113 imode = get_vlc2(gb, ff_vc1_imode_vlc.table, VC1_IMODE_VLC_BITS, 1);
118 //Data is actually read in the MB layer (same for all tests == "raw")
119 *raw_flag = 1; //invert ignored
123 if ((height * width) & 1) {
124 *planep++ = get_bits1(gb);
126 if (offset == width) {
128 planep += stride - width;
133 // decode bitplane as one long line
134 for (; y < height * width; y += 2) {
135 code = get_vlc2(gb, ff_vc1_norm2_vlc.table, VC1_NORM2_VLC_BITS, 1);
136 *planep++ = code & 1;
138 if (offset == width) {
140 planep += stride - width;
142 *planep++ = code >> 1;
144 if (offset == width) {
146 planep += stride - width;
152 if (!(height % 3) && (width % 3)) { // use 2x3 decoding
153 for (y = 0; y < height; y += 3) {
154 for (x = width & 1; x < width; x += 2) {
155 code = get_vlc2(gb, ff_vc1_norm6_vlc.table, VC1_NORM6_VLC_BITS, 2);
157 av_log(v->s.avctx, AV_LOG_DEBUG, "invalid NORM-6 VLC\n");
160 planep[x + 0] = (code >> 0) & 1;
161 planep[x + 1] = (code >> 1) & 1;
162 planep[x + 0 + stride] = (code >> 2) & 1;
163 planep[x + 1 + stride] = (code >> 3) & 1;
164 planep[x + 0 + stride * 2] = (code >> 4) & 1;
165 planep[x + 1 + stride * 2] = (code >> 5) & 1;
167 planep += stride * 3;
170 decode_colskip(data, 1, height, stride, &v->s.gb);
172 planep += (height & 1) * stride;
173 for (y = height & 1; y < height; y += 2) {
174 for (x = width % 3; x < width; x += 3) {
175 code = get_vlc2(gb, ff_vc1_norm6_vlc.table, VC1_NORM6_VLC_BITS, 2);
177 av_log(v->s.avctx, AV_LOG_DEBUG, "invalid NORM-6 VLC\n");
180 planep[x + 0] = (code >> 0) & 1;
181 planep[x + 1] = (code >> 1) & 1;
182 planep[x + 2] = (code >> 2) & 1;
183 planep[x + 0 + stride] = (code >> 3) & 1;
184 planep[x + 1 + stride] = (code >> 4) & 1;
185 planep[x + 2 + stride] = (code >> 5) & 1;
187 planep += stride * 2;
191 decode_colskip(data, x, height, stride, &v->s.gb);
193 decode_rowskip(data + x, width - x, 1, stride, &v->s.gb);
197 decode_rowskip(data, width, height, stride, &v->s.gb);
200 decode_colskip(data, width, height, stride, &v->s.gb);
206 /* Applying diff operator */
207 if (imode == IMODE_DIFF2 || imode == IMODE_DIFF6) {
210 for (x = 1; x < width; x++)
211 planep[x] ^= planep[x-1];
212 for (y = 1; y < height; y++) {
214 planep[0] ^= planep[-stride];
215 for (x = 1; x < width; x++) {
216 if (planep[x-1] != planep[x-stride]) planep[x] ^= invert;
217 else planep[x] ^= planep[x-1];
222 for (x = 0; x < stride * height; x++)
223 planep[x] = !planep[x]; //FIXME stride
225 return (imode << 1) + invert;
228 /** @} */ //Bitplane group
230 /***********************************************************************/
231 /** VOP Dquant decoding
232 * @param v VC-1 Context
234 static int vop_dquant_decoding(VC1Context *v)
236 GetBitContext *gb = &v->s.gb;
240 if (v->dquant == 2) {
241 pqdiff = get_bits(gb, 3);
243 v->altpq = get_bits(gb, 5);
245 v->altpq = v->pq + pqdiff + 1;
247 v->dquantfrm = get_bits1(gb);
249 v->dqprofile = get_bits(gb, 2);
250 switch (v->dqprofile) {
251 case DQPROFILE_SINGLE_EDGE:
252 case DQPROFILE_DOUBLE_EDGES:
253 v->dqsbedge = get_bits(gb, 2);
255 case DQPROFILE_ALL_MBS:
256 v->dqbilevel = get_bits1(gb);
262 if (v->dqbilevel || v->dqprofile != DQPROFILE_ALL_MBS) {
263 pqdiff = get_bits(gb, 3);
265 v->altpq = get_bits(gb, 5);
267 v->altpq = v->pq + pqdiff + 1;
274 static int decode_sequence_header_adv(VC1Context *v, GetBitContext *gb);
277 * Decode Simple/Main Profiles sequence header
278 * @see Figure 7-8, p16-17
279 * @param avctx Codec context
280 * @param gb GetBit context initialized from Codec context extra_data
283 int ff_vc1_decode_sequence_header(AVCodecContext *avctx, VC1Context *v, GetBitContext *gb)
285 av_log(avctx, AV_LOG_DEBUG, "Header: %0X\n", show_bits_long(gb, 32));
286 v->profile = get_bits(gb, 2);
287 if (v->profile == PROFILE_COMPLEX) {
288 av_log(avctx, AV_LOG_WARNING, "WMV3 Complex Profile is not fully supported\n");
291 if (v->profile == PROFILE_ADVANCED) {
292 v->zz_8x4 = ff_vc1_adv_progressive_8x4_zz;
293 v->zz_4x8 = ff_vc1_adv_progressive_4x8_zz;
294 return decode_sequence_header_adv(v, gb);
297 v->zz_8x4 = ff_wmv2_scantableA;
298 v->zz_4x8 = ff_wmv2_scantableB;
299 v->res_y411 = get_bits1(gb);
300 v->res_sprite = get_bits1(gb);
302 av_log(avctx, AV_LOG_ERROR,
303 "Old interlaced mode is not supported\n");
309 v->frmrtq_postproc = get_bits(gb, 3); //common
310 // (bitrate-32kbps)/64kbps
311 v->bitrtq_postproc = get_bits(gb, 5); //common
312 v->s.loop_filter = get_bits1(gb); //common
313 if (v->s.loop_filter == 1 && v->profile == PROFILE_SIMPLE) {
314 av_log(avctx, AV_LOG_ERROR,
315 "LOOPFILTER shall not be enabled in Simple Profile\n");
317 if (v->s.avctx->skip_loop_filter >= AVDISCARD_ALL)
318 v->s.loop_filter = 0;
320 v->res_x8 = get_bits1(gb); //reserved
321 v->multires = get_bits1(gb);
322 v->res_fasttx = get_bits1(gb);
323 if (!v->res_fasttx) {
324 v->vc1dsp.vc1_inv_trans_8x8 = ff_simple_idct_8;
325 v->vc1dsp.vc1_inv_trans_8x4 = ff_simple_idct84_add;
326 v->vc1dsp.vc1_inv_trans_4x8 = ff_simple_idct48_add;
327 v->vc1dsp.vc1_inv_trans_4x4 = ff_simple_idct44_add;
328 v->vc1dsp.vc1_inv_trans_8x8_dc = ff_simple_idct_add_8;
329 v->vc1dsp.vc1_inv_trans_8x4_dc = ff_simple_idct84_add;
330 v->vc1dsp.vc1_inv_trans_4x8_dc = ff_simple_idct48_add;
331 v->vc1dsp.vc1_inv_trans_4x4_dc = ff_simple_idct44_add;
334 v->fastuvmc = get_bits1(gb); //common
335 if (!v->profile && !v->fastuvmc) {
336 av_log(avctx, AV_LOG_ERROR,
337 "FASTUVMC unavailable in Simple Profile\n");
340 v->extended_mv = get_bits1(gb); //common
341 if (!v->profile && v->extended_mv)
343 av_log(avctx, AV_LOG_ERROR,
344 "Extended MVs unavailable in Simple Profile\n");
347 v->dquant = get_bits(gb, 2); //common
348 v->vstransform = get_bits1(gb); //common
350 v->res_transtab = get_bits1(gb);
353 av_log(avctx, AV_LOG_ERROR,
354 "1 for reserved RES_TRANSTAB is forbidden\n");
358 v->overlap = get_bits1(gb); //common
360 v->resync_marker = get_bits1(gb);
361 v->rangered = get_bits1(gb);
362 if (v->rangered && v->profile == PROFILE_SIMPLE) {
363 av_log(avctx, AV_LOG_INFO,
364 "RANGERED should be set to 0 in Simple Profile\n");
367 v->s.max_b_frames = avctx->max_b_frames = get_bits(gb, 3); //common
368 v->quantizer_mode = get_bits(gb, 2); //common
370 v->finterpflag = get_bits1(gb); //common
373 int w = get_bits(gb, 11);
374 int h = get_bits(gb, 11);
375 avcodec_set_dimensions(v->s.avctx, w, h);
376 skip_bits(gb, 5); //frame rate
377 v->res_x8 = get_bits1(gb);
378 if (get_bits1(gb)) { // something to do with DC VLC selection
379 av_log(avctx, AV_LOG_ERROR, "Unsupported sprite feature\n");
382 skip_bits(gb, 3); //slice code
385 v->res_rtm_flag = get_bits1(gb); //reserved
387 if (!v->res_rtm_flag) {
388 av_log(avctx, AV_LOG_ERROR,
389 "Old WMV3 version detected, some frames may be decoded incorrectly\n");
392 //TODO: figure out what they mean (always 0x402F)
395 av_log(avctx, AV_LOG_DEBUG,
396 "Profile %i:\nfrmrtq_postproc=%i, bitrtq_postproc=%i\n"
397 "LoopFilter=%i, MultiRes=%i, FastUVMC=%i, Extended MV=%i\n"
398 "Rangered=%i, VSTransform=%i, Overlap=%i, SyncMarker=%i\n"
399 "DQuant=%i, Quantizer mode=%i, Max B frames=%i\n",
400 v->profile, v->frmrtq_postproc, v->bitrtq_postproc,
401 v->s.loop_filter, v->multires, v->fastuvmc, v->extended_mv,
402 v->rangered, v->vstransform, v->overlap, v->resync_marker,
403 v->dquant, v->quantizer_mode, avctx->max_b_frames);
407 static int decode_sequence_header_adv(VC1Context *v, GetBitContext *gb)
410 v->level = get_bits(gb, 3);
412 av_log(v->s.avctx, AV_LOG_ERROR, "Reserved LEVEL %i\n",v->level);
414 v->chromaformat = get_bits(gb, 2);
415 if (v->chromaformat != 1) {
416 av_log(v->s.avctx, AV_LOG_ERROR,
417 "Only 4:2:0 chroma format supported\n");
422 v->frmrtq_postproc = get_bits(gb, 3); //common
423 // (bitrate-32kbps)/64kbps
424 v->bitrtq_postproc = get_bits(gb, 5); //common
425 v->postprocflag = get_bits1(gb); //common
427 v->max_coded_width = (get_bits(gb, 12) + 1) << 1;
428 v->max_coded_height = (get_bits(gb, 12) + 1) << 1;
429 v->broadcast = get_bits1(gb);
430 v->interlace = get_bits1(gb);
431 v->tfcntrflag = get_bits1(gb);
432 v->finterpflag = get_bits1(gb);
433 skip_bits1(gb); // reserved
435 av_log(v->s.avctx, AV_LOG_DEBUG,
436 "Advanced Profile level %i:\nfrmrtq_postproc=%i, bitrtq_postproc=%i\n"
437 "LoopFilter=%i, ChromaFormat=%i, Pulldown=%i, Interlace: %i\n"
438 "TFCTRflag=%i, FINTERPflag=%i\n",
439 v->level, v->frmrtq_postproc, v->bitrtq_postproc,
440 v->s.loop_filter, v->chromaformat, v->broadcast, v->interlace,
441 v->tfcntrflag, v->finterpflag);
443 v->psf = get_bits1(gb);
444 if (v->psf) { //PsF, 6.1.13
445 av_log(v->s.avctx, AV_LOG_ERROR, "Progressive Segmented Frame mode: not supported (yet)\n");
448 v->s.max_b_frames = v->s.avctx->max_b_frames = 7;
449 if (get_bits1(gb)) { //Display Info - decoding is not affected by it
451 av_log(v->s.avctx, AV_LOG_DEBUG, "Display extended info:\n");
452 w = get_bits(gb, 14) + 1;
453 h = get_bits(gb, 14) + 1;
454 av_log(v->s.avctx, AV_LOG_DEBUG, "Display dimensions: %ix%i\n", w, h);
456 ar = get_bits(gb, 4);
458 v->s.avctx->sample_aspect_ratio = ff_vc1_pixel_aspect[ar];
459 } else if (ar == 15) {
460 w = get_bits(gb, 8) + 1;
461 h = get_bits(gb, 8) + 1;
462 v->s.avctx->sample_aspect_ratio = (AVRational){w, h};
464 av_reduce(&v->s.avctx->sample_aspect_ratio.num,
465 &v->s.avctx->sample_aspect_ratio.den,
466 v->s.avctx->height * w,
467 v->s.avctx->width * h,
470 av_log(v->s.avctx, AV_LOG_DEBUG, "Aspect: %i:%i\n",
471 v->s.avctx->sample_aspect_ratio.num,
472 v->s.avctx->sample_aspect_ratio.den);
474 if (get_bits1(gb)) { //framerate stuff
476 v->s.avctx->time_base.num = 32;
477 v->s.avctx->time_base.den = get_bits(gb, 16) + 1;
480 nr = get_bits(gb, 8);
481 dr = get_bits(gb, 4);
482 if (nr > 0 && nr < 8 && dr > 0 && dr < 3) {
483 v->s.avctx->time_base.num = ff_vc1_fps_dr[dr - 1];
484 v->s.avctx->time_base.den = ff_vc1_fps_nr[nr - 1] * 1000;
487 if (v->broadcast) { // Pulldown may be present
488 v->s.avctx->time_base.den *= 2;
489 v->s.avctx->ticks_per_frame = 2;
494 v->s.avctx->color_primaries = get_bits(gb, 8);
495 v->s.avctx->color_trc = get_bits(gb, 8);
496 v->s.avctx->colorspace = get_bits(gb, 8);
497 v->s.avctx->color_range = AVCOL_RANGE_MPEG;
501 v->hrd_param_flag = get_bits1(gb);
502 if (v->hrd_param_flag) {
504 v->hrd_num_leaky_buckets = get_bits(gb, 5);
505 skip_bits(gb, 4); //bitrate exponent
506 skip_bits(gb, 4); //buffer size exponent
507 for (i = 0; i < v->hrd_num_leaky_buckets; i++) {
508 skip_bits(gb, 16); //hrd_rate[n]
509 skip_bits(gb, 16); //hrd_buffer[n]
515 int ff_vc1_decode_entry_point(AVCodecContext *avctx, VC1Context *v, GetBitContext *gb)
520 av_log(avctx, AV_LOG_DEBUG, "Entry point: %08X\n", show_bits_long(gb, 32));
521 v->broken_link = get_bits1(gb);
522 v->closed_entry = get_bits1(gb);
523 v->panscanflag = get_bits1(gb);
524 v->refdist_flag = get_bits1(gb);
525 v->s.loop_filter = get_bits1(gb);
526 if (v->s.avctx->skip_loop_filter >= AVDISCARD_ALL)
527 v->s.loop_filter = 0;
528 v->fastuvmc = get_bits1(gb);
529 v->extended_mv = get_bits1(gb);
530 v->dquant = get_bits(gb, 2);
531 v->vstransform = get_bits1(gb);
532 v->overlap = get_bits1(gb);
533 v->quantizer_mode = get_bits(gb, 2);
535 if (v->hrd_param_flag) {
536 for (i = 0; i < v->hrd_num_leaky_buckets; i++) {
537 skip_bits(gb, 8); //hrd_full[n]
542 w = (get_bits(gb, 12)+1)<<1;
543 h = (get_bits(gb, 12)+1)<<1;
545 w = v->max_coded_width;
546 h = v->max_coded_height;
548 avcodec_set_dimensions(avctx, w, h);
550 v->extended_dmv = get_bits1(gb);
551 if ((v->range_mapy_flag = get_bits1(gb))) {
552 av_log(avctx, AV_LOG_ERROR, "Luma scaling is not supported, expect wrong picture\n");
553 v->range_mapy = get_bits(gb, 3);
555 if ((v->range_mapuv_flag = get_bits1(gb))) {
556 av_log(avctx, AV_LOG_ERROR, "Chroma scaling is not supported, expect wrong picture\n");
557 v->range_mapuv = get_bits(gb, 3);
560 av_log(avctx, AV_LOG_DEBUG, "Entry point info:\n"
561 "BrokenLink=%i, ClosedEntry=%i, PanscanFlag=%i\n"
562 "RefDist=%i, Postproc=%i, FastUVMC=%i, ExtMV=%i\n"
563 "DQuant=%i, VSTransform=%i, Overlap=%i, Qmode=%i\n",
564 v->broken_link, v->closed_entry, v->panscanflag, v->refdist_flag, v->s.loop_filter,
565 v->fastuvmc, v->extended_mv, v->dquant, v->vstransform, v->overlap, v->quantizer_mode);
570 /* fill lookup tables for intensity compensation */
571 #define INIT_LUT(lumscale, lumshift, luty, lutuv, chain) do { \
572 int scale, shift, i; \
575 shift = (255 - lumshift * 2) << 6; \
579 scale = lumscale + 32; \
581 shift = (lumshift - 64) << 6; \
583 shift = lumshift << 6; \
585 for (i = 0; i < 256; i++) { \
586 int iy = chain ? luty[i] : i; \
587 int iu = chain ? lutuv[i] : i; \
588 luty[i] = av_clip_uint8((scale * iy + shift + 32) >> 6); \
589 lutuv[i] = av_clip_uint8((scale * (iu - 128) + 128*64 + 32) >> 6);\
593 static void rotate_luts(VC1Context *v)
595 #define ROTATE(DEF, L, N, C, A) do { \
596 if (v->s.pict_type == AV_PICTURE_TYPE_BI || v->s.pict_type == AV_PICTURE_TYPE_B) { \
600 memcpy(&tmp, L , sizeof(tmp)); \
601 memcpy(L , N , sizeof(tmp)); \
602 memcpy(N , &tmp, sizeof(tmp)); \
607 ROTATE(int tmp, &v->last_use_ic, &v->next_use_ic, v->curr_use_ic, &v->aux_use_ic);
608 ROTATE(uint8_t tmp[2][256], v->last_luty, v->next_luty, v->curr_luty, v->aux_luty);
609 ROTATE(uint8_t tmp[2][256], v->last_lutuv, v->next_lutuv, v->curr_lutuv, v->aux_lutuv);
611 INIT_LUT(32, 0, v->curr_luty[0], v->curr_lutuv[0], 0);
612 INIT_LUT(32, 0, v->curr_luty[1], v->curr_lutuv[1], 0);
616 static int read_bfraction(VC1Context *v, GetBitContext* gb) {
617 int bfraction_lut_index = get_vlc2(gb, ff_vc1_bfraction_vlc.table, VC1_BFRACTION_VLC_BITS, 1);
619 if (bfraction_lut_index == 21 || bfraction_lut_index < 0) {
620 av_log(v->s.avctx, AV_LOG_ERROR, "bfraction invalid\n");
621 return AVERROR_INVALIDDATA;
623 v->bfraction_lut_index = bfraction_lut_index;
624 v->bfraction = ff_vc1_bfraction_lut[v->bfraction_lut_index];
628 int ff_vc1_parse_frame_header(VC1Context *v, GetBitContext* gb)
630 int pqindex, lowquant, status;
635 v->interpfrm = get_bits1(gb);
636 if (!v->s.avctx->codec)
638 if (v->s.avctx->codec_id == AV_CODEC_ID_MSS2)
641 v->multires = get_bits(gb, 2) == 1;
643 skip_bits(gb, 2); //framecnt unused
646 v->rangeredfrm = get_bits1(gb);
647 v->s.pict_type = get_bits1(gb);
648 if (v->s.avctx->max_b_frames) {
649 if (!v->s.pict_type) {
651 v->s.pict_type = AV_PICTURE_TYPE_I;
653 v->s.pict_type = AV_PICTURE_TYPE_B;
655 v->s.pict_type = AV_PICTURE_TYPE_P;
657 v->s.pict_type = v->s.pict_type ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_I;
660 if (v->s.pict_type == AV_PICTURE_TYPE_B) {
661 if (read_bfraction(v, gb) < 0)
662 return AVERROR_INVALIDDATA;
663 if (v->bfraction == 0) {
664 v->s.pict_type = AV_PICTURE_TYPE_BI;
667 if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI)
668 skip_bits(gb, 7); // skip buffer fullness
674 if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI)
676 if (v->s.pict_type == AV_PICTURE_TYPE_P)
679 /* Quantizer stuff */
680 pqindex = get_bits(gb, 5);
683 if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
684 v->pq = ff_vc1_pquant_table[0][pqindex];
686 v->pq = ff_vc1_pquant_table[1][pqindex];
689 if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
690 v->pquantizer = pqindex < 9;
691 if (v->quantizer_mode == QUANT_NON_UNIFORM)
693 v->pqindex = pqindex;
695 v->halfpq = get_bits1(gb);
698 if (v->quantizer_mode == QUANT_FRAME_EXPLICIT)
699 v->pquantizer = get_bits1(gb);
701 if (v->extended_mv == 1)
702 v->mvrange = get_unary(gb, 0, 3);
703 v->k_x = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13
704 v->k_y = v->mvrange + 8; //k_y can be 8 9 10 11
705 v->range_x = 1 << (v->k_x - 1);
706 v->range_y = 1 << (v->k_y - 1);
707 if (v->multires && v->s.pict_type != AV_PICTURE_TYPE_B)
708 v->respic = get_bits(gb, 2);
710 if (v->res_x8 && (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI)) {
711 v->x8_type = get_bits1(gb);
714 av_dlog(v->s.avctx, "%c Frame: QP=[%i]%i (+%i/2) %i\n",
715 (v->s.pict_type == AV_PICTURE_TYPE_P) ? 'P' : ((v->s.pict_type == AV_PICTURE_TYPE_I) ? 'I' : 'B'),
716 pqindex, v->pq, v->halfpq, v->rangeredfrm);
718 if (v->first_pic_header_flag)
721 switch (v->s.pict_type) {
722 case AV_PICTURE_TYPE_P:
723 if (v->pq < 5) v->tt_index = 0;
724 else if (v->pq < 13) v->tt_index = 1;
725 else v->tt_index = 2;
727 lowquant = (v->pq > 12) ? 0 : 1;
728 v->mv_mode = ff_vc1_mv_pmode_table[lowquant][get_unary(gb, 1, 4)];
729 if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {
730 v->mv_mode2 = ff_vc1_mv_pmode_table2[lowquant][get_unary(gb, 1, 3)];
731 v->lumscale = get_bits(gb, 6);
732 v->lumshift = get_bits(gb, 6);
734 /* fill lookup tables for intensity compensation */
735 INIT_LUT(v->lumscale, v->lumshift, v->last_luty[0], v->last_lutuv[0], 1);
736 INIT_LUT(v->lumscale, v->lumshift, v->last_luty[1], v->last_lutuv[1], 1);
738 v->qs_last = v->s.quarter_sample;
739 if (v->mv_mode == MV_PMODE_1MV_HPEL || v->mv_mode == MV_PMODE_1MV_HPEL_BILIN)
740 v->s.quarter_sample = 0;
741 else if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {
742 if (v->mv_mode2 == MV_PMODE_1MV_HPEL || v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN)
743 v->s.quarter_sample = 0;
745 v->s.quarter_sample = 1;
747 v->s.quarter_sample = 1;
748 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));
750 if ((v->mv_mode == MV_PMODE_INTENSITY_COMP &&
751 v->mv_mode2 == MV_PMODE_MIXED_MV) ||
752 v->mv_mode == MV_PMODE_MIXED_MV) {
753 status = bitplane_decoding(v->mv_type_mb_plane, &v->mv_type_is_raw, v);
756 av_log(v->s.avctx, AV_LOG_DEBUG, "MB MV Type plane encoding: "
757 "Imode: %i, Invert: %i\n", status>>1, status&1);
759 v->mv_type_is_raw = 0;
760 memset(v->mv_type_mb_plane, 0, v->s.mb_stride * v->s.mb_height);
762 status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
765 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
766 "Imode: %i, Invert: %i\n", status>>1, status&1);
768 /* Hopefully this is correct for P frames */
769 v->s.mv_table_index = get_bits(gb, 2); //but using ff_vc1_ tables
770 v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];
773 av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
774 vop_dquant_decoding(v);
777 v->ttfrm = 0; //FIXME Is that so ?
778 if (v->vstransform) {
779 v->ttmbf = get_bits1(gb);
781 v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
788 case AV_PICTURE_TYPE_B:
789 if (v->pq < 5) v->tt_index = 0;
790 else if (v->pq < 13) v->tt_index = 1;
791 else v->tt_index = 2;
793 v->mv_mode = get_bits1(gb) ? MV_PMODE_1MV : MV_PMODE_1MV_HPEL_BILIN;
794 v->qs_last = v->s.quarter_sample;
795 v->s.quarter_sample = (v->mv_mode == MV_PMODE_1MV);
796 v->s.mspel = v->s.quarter_sample;
798 status = bitplane_decoding(v->direct_mb_plane, &v->dmb_is_raw, v);
801 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Direct Type plane encoding: "
802 "Imode: %i, Invert: %i\n", status>>1, status&1);
803 status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
806 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
807 "Imode: %i, Invert: %i\n", status>>1, status&1);
809 v->s.mv_table_index = get_bits(gb, 2);
810 v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];
813 av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
814 vop_dquant_decoding(v);
818 if (v->vstransform) {
819 v->ttmbf = get_bits1(gb);
821 v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
832 v->c_ac_table_index = decode012(gb);
833 if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI) {
834 v->y_ac_table_index = decode012(gb);
837 v->s.dc_table_index = get_bits1(gb);
840 if (v->s.pict_type == AV_PICTURE_TYPE_BI) {
841 v->s.pict_type = AV_PICTURE_TYPE_B;
847 int ff_vc1_parse_frame_header_adv(VC1Context *v, GetBitContext* gb)
849 int pqindex, lowquant;
851 int mbmodetab, imvtab, icbptab, twomvbptab, fourmvbptab; /* useful only for debugging */
855 v->p_frame_skipped = 0;
856 if (v->second_field) {
857 if(v->fcm!=2 || v->field_mode!=1)
859 v->s.pict_type = (v->fptype & 1) ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_I;
861 v->s.pict_type = (v->fptype & 1) ? AV_PICTURE_TYPE_BI : AV_PICTURE_TYPE_B;
862 v->s.current_picture_ptr->f.pict_type = v->s.pict_type;
863 if (!v->pic_header_flag)
864 goto parse_common_info;
871 if (fcm == ILACE_FIELD)
877 if (!v->first_pic_header_flag && v->field_mode != field_mode)
878 return AVERROR_INVALIDDATA;
879 v->field_mode = field_mode;
882 av_assert0( v->s.mb_height == v->s.height + 15 >> 4
883 || v->s.mb_height == FFALIGN(v->s.height + 15 >> 4, 2));
885 v->s.mb_height = FFALIGN(v->s.height + 15 >> 4, 2);
886 v->fptype = get_bits(gb, 3);
887 v->s.pict_type = (v->fptype & 2) ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_I;
888 if (v->fptype & 4) // B-picture
889 v->s.pict_type = (v->fptype & 2) ? AV_PICTURE_TYPE_BI : AV_PICTURE_TYPE_B;
892 v->s.mb_height = v->s.height + 15 >> 4;
893 switch (get_unary(gb, 0, 4)) {
895 v->s.pict_type = AV_PICTURE_TYPE_P;
898 v->s.pict_type = AV_PICTURE_TYPE_B;
901 v->s.pict_type = AV_PICTURE_TYPE_I;
904 v->s.pict_type = AV_PICTURE_TYPE_BI;
907 v->s.pict_type = AV_PICTURE_TYPE_P; // skipped pic
908 v->p_frame_skipped = 1;
915 if (!v->interlace || v->psf) {
916 v->rptfrm = get_bits(gb, 2);
918 v->tff = get_bits1(gb);
919 v->rff = get_bits1(gb);
924 if (v->panscanflag) {
925 avpriv_report_missing_feature(v->s.avctx, "Pan-scan");
928 if (v->p_frame_skipped) {
931 v->rnd = get_bits1(gb);
933 v->uvsamp = get_bits1(gb);
934 if(!ff_vc1_bfraction_vlc.table)
935 return 0; //parsing only, vlc tables havnt been allocated
937 if (!v->refdist_flag)
939 else if ((v->s.pict_type != AV_PICTURE_TYPE_B) && (v->s.pict_type != AV_PICTURE_TYPE_BI)) {
940 v->refdist = get_bits(gb, 2);
942 v->refdist += get_unary(gb, 0, 16);
944 if ((v->s.pict_type == AV_PICTURE_TYPE_B) || (v->s.pict_type == AV_PICTURE_TYPE_BI)) {
945 if (read_bfraction(v, gb) < 0)
946 return AVERROR_INVALIDDATA;
947 v->frfd = (v->bfraction * v->refdist) >> 8;
948 v->brfd = v->refdist - v->frfd - 1;
952 goto parse_common_info;
954 if (v->fcm == PROGRESSIVE) {
956 v->interpfrm = get_bits1(gb);
957 if (v->s.pict_type == AV_PICTURE_TYPE_B) {
958 if (read_bfraction(v, gb) < 0)
959 return AVERROR_INVALIDDATA;
960 if (v->bfraction == 0) {
961 v->s.pict_type = AV_PICTURE_TYPE_BI; /* XXX: should not happen here */
968 v->cur_field_type = !(v->tff ^ v->second_field);
969 pqindex = get_bits(gb, 5);
972 v->pqindex = pqindex;
973 if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
974 v->pq = ff_vc1_pquant_table[0][pqindex];
976 v->pq = ff_vc1_pquant_table[1][pqindex];
979 if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
980 v->pquantizer = pqindex < 9;
981 if (v->quantizer_mode == QUANT_NON_UNIFORM)
983 v->pqindex = pqindex;
985 v->halfpq = get_bits1(gb);
988 if (v->quantizer_mode == QUANT_FRAME_EXPLICIT)
989 v->pquantizer = get_bits1(gb);
991 v->postproc = get_bits(gb, 2);
996 if (v->first_pic_header_flag)
999 switch (v->s.pict_type) {
1000 case AV_PICTURE_TYPE_I:
1001 case AV_PICTURE_TYPE_BI:
1002 if (v->fcm == ILACE_FRAME) { //interlace frame picture
1003 status = bitplane_decoding(v->fieldtx_plane, &v->fieldtx_is_raw, v);
1006 av_log(v->s.avctx, AV_LOG_DEBUG, "FIELDTX plane encoding: "
1007 "Imode: %i, Invert: %i\n", status>>1, status&1);
1009 status = bitplane_decoding(v->acpred_plane, &v->acpred_is_raw, v);
1012 av_log(v->s.avctx, AV_LOG_DEBUG, "ACPRED plane encoding: "
1013 "Imode: %i, Invert: %i\n", status>>1, status&1);
1014 v->condover = CONDOVER_NONE;
1015 if (v->overlap && v->pq <= 8) {
1016 v->condover = decode012(gb);
1017 if (v->condover == CONDOVER_SELECT) {
1018 status = bitplane_decoding(v->over_flags_plane, &v->overflg_is_raw, v);
1021 av_log(v->s.avctx, AV_LOG_DEBUG, "CONDOVER plane encoding: "
1022 "Imode: %i, Invert: %i\n", status>>1, status&1);
1026 case AV_PICTURE_TYPE_P:
1027 if (v->field_mode) {
1028 v->numref = get_bits1(gb);
1030 v->reffield = get_bits1(gb);
1031 v->ref_field_type[0] = v->reffield ^ !v->cur_field_type;
1035 v->mvrange = get_unary(gb, 0, 3);
1039 if (v->extended_dmv)
1040 v->dmvrange = get_unary(gb, 0, 3);
1043 if (v->fcm == ILACE_FRAME) { // interlaced frame picture
1044 v->fourmvswitch = get_bits1(gb);
1045 v->intcomp = get_bits1(gb);
1047 v->lumscale = get_bits(gb, 6);
1048 v->lumshift = get_bits(gb, 6);
1049 INIT_LUT(v->lumscale, v->lumshift, v->last_luty[0], v->last_lutuv[0], 1);
1050 INIT_LUT(v->lumscale, v->lumshift, v->last_luty[1], v->last_lutuv[1], 1);
1053 status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
1054 av_log(v->s.avctx, AV_LOG_DEBUG, "SKIPMB plane encoding: "
1055 "Imode: %i, Invert: %i\n", status>>1, status&1);
1056 mbmodetab = get_bits(gb, 2);
1057 if (v->fourmvswitch)
1058 v->mbmode_vlc = &ff_vc1_intfr_4mv_mbmode_vlc[mbmodetab];
1060 v->mbmode_vlc = &ff_vc1_intfr_non4mv_mbmode_vlc[mbmodetab];
1061 imvtab = get_bits(gb, 2);
1062 v->imv_vlc = &ff_vc1_1ref_mvdata_vlc[imvtab];
1063 // interlaced p-picture cbpcy range is [1, 63]
1064 icbptab = get_bits(gb, 3);
1065 v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[icbptab];
1066 twomvbptab = get_bits(gb, 2);
1067 v->twomvbp_vlc = &ff_vc1_2mv_block_pattern_vlc[twomvbptab];
1068 if (v->fourmvswitch) {
1069 fourmvbptab = get_bits(gb, 2);
1070 v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[fourmvbptab];
1074 v->k_x = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13
1075 v->k_y = v->mvrange + 8; //k_y can be 8 9 10 11
1076 v->range_x = 1 << (v->k_x - 1);
1077 v->range_y = 1 << (v->k_y - 1);
1081 else if (v->pq < 13)
1085 if (v->fcm != ILACE_FRAME) {
1087 mvmode = get_unary(gb, 1, 4);
1088 lowquant = (v->pq > 12) ? 0 : 1;
1089 v->mv_mode = ff_vc1_mv_pmode_table[lowquant][mvmode];
1090 if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {
1092 mvmode2 = get_unary(gb, 1, 3);
1093 v->mv_mode2 = ff_vc1_mv_pmode_table2[lowquant][mvmode2];
1094 if (v->field_mode) {
1095 v->intcompfield = decode210(gb) ^ 3;
1097 v->intcompfield = 3;
1099 v->lumscale2 = v->lumscale = 32;
1100 v->lumshift2 = v->lumshift = 0;
1101 if (v->intcompfield & 1) {
1102 v->lumscale = get_bits(gb, 6);
1103 v->lumshift = get_bits(gb, 6);
1105 if ((v->intcompfield & 2) && v->field_mode) {
1106 v->lumscale2 = get_bits(gb, 6);
1107 v->lumshift2 = get_bits(gb, 6);
1108 } else if(!v->field_mode) {
1109 v->lumscale2 = v->lumscale;
1110 v->lumshift2 = v->lumshift;
1112 if (v->field_mode && v->second_field) {
1113 if (v->cur_field_type) {
1114 INIT_LUT(v->lumscale , v->lumshift , v->curr_luty[v->cur_field_type^1], v->curr_lutuv[v->cur_field_type^1], 0);
1115 INIT_LUT(v->lumscale2, v->lumshift2, v->last_luty[v->cur_field_type ], v->last_lutuv[v->cur_field_type ], 1);
1117 INIT_LUT(v->lumscale2, v->lumshift2, v->curr_luty[v->cur_field_type^1], v->curr_lutuv[v->cur_field_type^1], 0);
1118 INIT_LUT(v->lumscale , v->lumshift , v->last_luty[v->cur_field_type ], v->last_lutuv[v->cur_field_type ], 1);
1120 v->next_use_ic = *v->curr_use_ic = 1;
1122 INIT_LUT(v->lumscale , v->lumshift , v->last_luty[0], v->last_lutuv[0], 1);
1123 INIT_LUT(v->lumscale2, v->lumshift2, v->last_luty[1], v->last_lutuv[1], 1);
1127 v->qs_last = v->s.quarter_sample;
1128 if (v->mv_mode == MV_PMODE_1MV_HPEL || v->mv_mode == MV_PMODE_1MV_HPEL_BILIN)
1129 v->s.quarter_sample = 0;
1130 else if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {
1131 if (v->mv_mode2 == MV_PMODE_1MV_HPEL || v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN)
1132 v->s.quarter_sample = 0;
1134 v->s.quarter_sample = 1;
1136 v->s.quarter_sample = 1;
1137 v->s.mspel = !(v->mv_mode == MV_PMODE_1MV_HPEL_BILIN
1138 || (v->mv_mode == MV_PMODE_INTENSITY_COMP
1139 && v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN));
1141 if (v->fcm == PROGRESSIVE) { // progressive
1142 if ((v->mv_mode == MV_PMODE_INTENSITY_COMP &&
1143 v->mv_mode2 == MV_PMODE_MIXED_MV)
1144 || v->mv_mode == MV_PMODE_MIXED_MV) {
1145 status = bitplane_decoding(v->mv_type_mb_plane, &v->mv_type_is_raw, v);
1148 av_log(v->s.avctx, AV_LOG_DEBUG, "MB MV Type plane encoding: "
1149 "Imode: %i, Invert: %i\n", status>>1, status&1);
1151 v->mv_type_is_raw = 0;
1152 memset(v->mv_type_mb_plane, 0, v->s.mb_stride * v->s.mb_height);
1154 status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
1157 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
1158 "Imode: %i, Invert: %i\n", status>>1, status&1);
1160 /* Hopefully this is correct for P frames */
1161 v->s.mv_table_index = get_bits(gb, 2); //but using ff_vc1_ tables
1162 v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];
1163 } else if (v->fcm == ILACE_FRAME) { // frame interlaced
1164 v->qs_last = v->s.quarter_sample;
1165 v->s.quarter_sample = 1;
1167 } else { // field interlaced
1168 mbmodetab = get_bits(gb, 3);
1169 imvtab = get_bits(gb, 2 + v->numref);
1171 v->imv_vlc = &ff_vc1_1ref_mvdata_vlc[imvtab];
1173 v->imv_vlc = &ff_vc1_2ref_mvdata_vlc[imvtab];
1174 icbptab = get_bits(gb, 3);
1175 v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[icbptab];
1176 if ((v->mv_mode == MV_PMODE_INTENSITY_COMP &&
1177 v->mv_mode2 == MV_PMODE_MIXED_MV) || v->mv_mode == MV_PMODE_MIXED_MV) {
1178 fourmvbptab = get_bits(gb, 2);
1179 v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[fourmvbptab];
1180 v->mbmode_vlc = &ff_vc1_if_mmv_mbmode_vlc[mbmodetab];
1182 v->mbmode_vlc = &ff_vc1_if_1mv_mbmode_vlc[mbmodetab];
1186 av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
1187 vop_dquant_decoding(v);
1190 v->ttfrm = 0; //FIXME Is that so ?
1191 if (v->vstransform) {
1192 v->ttmbf = get_bits1(gb);
1194 v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
1201 case AV_PICTURE_TYPE_B:
1202 if (v->fcm == ILACE_FRAME) {
1203 if (read_bfraction(v, gb) < 0)
1204 return AVERROR_INVALIDDATA;
1205 if (v->bfraction == 0) {
1210 v->mvrange = get_unary(gb, 0, 3);
1213 v->k_x = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13
1214 v->k_y = v->mvrange + 8; //k_y can be 8 9 10 11
1215 v->range_x = 1 << (v->k_x - 1);
1216 v->range_y = 1 << (v->k_y - 1);
1220 else if (v->pq < 13)
1225 if (v->field_mode) {
1227 av_log(v->s.avctx, AV_LOG_DEBUG, "B Fields\n");
1228 if (v->extended_dmv)
1229 v->dmvrange = get_unary(gb, 0, 3);
1230 mvmode = get_unary(gb, 1, 3);
1231 lowquant = (v->pq > 12) ? 0 : 1;
1232 v->mv_mode = ff_vc1_mv_pmode_table2[lowquant][mvmode];
1233 v->qs_last = v->s.quarter_sample;
1234 v->s.quarter_sample = (v->mv_mode == MV_PMODE_1MV || v->mv_mode == MV_PMODE_MIXED_MV);
1235 v->s.mspel = !(v->mv_mode == MV_PMODE_1MV_HPEL_BILIN || v->mv_mode == MV_PMODE_1MV_HPEL);
1236 status = bitplane_decoding(v->forward_mb_plane, &v->fmb_is_raw, v);
1239 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Forward Type plane encoding: "
1240 "Imode: %i, Invert: %i\n", status>>1, status&1);
1241 mbmodetab = get_bits(gb, 3);
1242 if (v->mv_mode == MV_PMODE_MIXED_MV)
1243 v->mbmode_vlc = &ff_vc1_if_mmv_mbmode_vlc[mbmodetab];
1245 v->mbmode_vlc = &ff_vc1_if_1mv_mbmode_vlc[mbmodetab];
1246 imvtab = get_bits(gb, 3);
1247 v->imv_vlc = &ff_vc1_2ref_mvdata_vlc[imvtab];
1248 icbptab = get_bits(gb, 3);
1249 v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[icbptab];
1250 if (v->mv_mode == MV_PMODE_MIXED_MV) {
1251 fourmvbptab = get_bits(gb, 2);
1252 v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[fourmvbptab];
1254 v->numref = 1; // interlaced field B pictures are always 2-ref
1255 } else if (v->fcm == ILACE_FRAME) {
1256 if (v->extended_dmv)
1257 v->dmvrange = get_unary(gb, 0, 3);
1258 if (get_bits1(gb)) /* intcomp - present but shall always be 0 */
1259 av_log(v->s.avctx, AV_LOG_WARNING, "Intensity compensation set for B picture\n");
1261 v->mv_mode = MV_PMODE_1MV;
1262 v->fourmvswitch = 0;
1263 v->qs_last = v->s.quarter_sample;
1264 v->s.quarter_sample = 1;
1266 status = bitplane_decoding(v->direct_mb_plane, &v->dmb_is_raw, v);
1269 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Direct Type plane encoding: "
1270 "Imode: %i, Invert: %i\n", status>>1, status&1);
1271 status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
1274 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
1275 "Imode: %i, Invert: %i\n", status>>1, status&1);
1276 mbmodetab = get_bits(gb, 2);
1277 v->mbmode_vlc = &ff_vc1_intfr_non4mv_mbmode_vlc[mbmodetab];
1278 imvtab = get_bits(gb, 2);
1279 v->imv_vlc = &ff_vc1_1ref_mvdata_vlc[imvtab];
1280 // interlaced p/b-picture cbpcy range is [1, 63]
1281 icbptab = get_bits(gb, 3);
1282 v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[icbptab];
1283 twomvbptab = get_bits(gb, 2);
1284 v->twomvbp_vlc = &ff_vc1_2mv_block_pattern_vlc[twomvbptab];
1285 fourmvbptab = get_bits(gb, 2);
1286 v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[fourmvbptab];
1288 v->mv_mode = get_bits1(gb) ? MV_PMODE_1MV : MV_PMODE_1MV_HPEL_BILIN;
1289 v->qs_last = v->s.quarter_sample;
1290 v->s.quarter_sample = (v->mv_mode == MV_PMODE_1MV);
1291 v->s.mspel = v->s.quarter_sample;
1292 status = bitplane_decoding(v->direct_mb_plane, &v->dmb_is_raw, v);
1295 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Direct Type plane encoding: "
1296 "Imode: %i, Invert: %i\n", status>>1, status&1);
1297 status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
1300 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
1301 "Imode: %i, Invert: %i\n", status>>1, status&1);
1302 v->s.mv_table_index = get_bits(gb, 2);
1303 v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];
1307 av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
1308 vop_dquant_decoding(v);
1312 if (v->vstransform) {
1313 v->ttmbf = get_bits1(gb);
1315 v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
1324 if (v->fcm != PROGRESSIVE && !v->s.quarter_sample) {
1330 v->c_ac_table_index = decode012(gb);
1331 if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI) {
1332 v->y_ac_table_index = decode012(gb);
1335 v->s.dc_table_index = get_bits1(gb);
1336 if ((v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI)
1338 av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
1339 vop_dquant_decoding(v);
1343 if (v->s.pict_type == AV_PICTURE_TYPE_BI) {
1344 v->s.pict_type = AV_PICTURE_TYPE_B;
1350 static const uint32_t vc1_ac_tables[AC_MODES][186][2] = {
1352 { 0x0001, 2}, { 0x0005, 3}, { 0x000D, 4}, { 0x0012, 5}, { 0x000E, 6}, { 0x0015, 7},
1353 { 0x0013, 8}, { 0x003F, 8}, { 0x004B, 9}, { 0x011F, 9}, { 0x00B8, 10}, { 0x03E3, 10},
1354 { 0x0172, 11}, { 0x024D, 12}, { 0x03DA, 12}, { 0x02DD, 13}, { 0x1F55, 13}, { 0x05B9, 14},
1355 { 0x3EAE, 14}, { 0x0000, 4}, { 0x0010, 5}, { 0x0008, 7}, { 0x0020, 8}, { 0x0029, 9},
1356 { 0x01F4, 9}, { 0x0233, 10}, { 0x01E0, 11}, { 0x012A, 12}, { 0x03DD, 12}, { 0x050A, 13},
1357 { 0x1F29, 13}, { 0x0A42, 14}, { 0x1272, 15}, { 0x1737, 15}, { 0x0003, 5}, { 0x0011, 7},
1358 { 0x00C4, 8}, { 0x004B, 10}, { 0x00B4, 11}, { 0x07D4, 11}, { 0x0345, 12}, { 0x02D7, 13},
1359 { 0x07BF, 13}, { 0x0938, 14}, { 0x0BBB, 14}, { 0x095E, 15}, { 0x0013, 5}, { 0x0078, 7},
1360 { 0x0069, 9}, { 0x0232, 10}, { 0x0461, 11}, { 0x03EC, 12}, { 0x0520, 13}, { 0x1F2A, 13},
1361 { 0x3E50, 14}, { 0x3E51, 14}, { 0x1486, 15}, { 0x000C, 6}, { 0x0024, 9}, { 0x0094, 11},
1362 { 0x08C0, 12}, { 0x0F09, 14}, { 0x1EF0, 15}, { 0x003D, 6}, { 0x0053, 9}, { 0x01A0, 11},
1363 { 0x02D6, 13}, { 0x0F08, 14}, { 0x0013, 7}, { 0x007C, 9}, { 0x07C1, 11}, { 0x04AC, 14},
1364 { 0x001B, 7}, { 0x00A0, 10}, { 0x0344, 12}, { 0x0F79, 14}, { 0x0079, 7}, { 0x03E1, 10},
1365 { 0x02D4, 13}, { 0x2306, 14}, { 0x0021, 8}, { 0x023C, 10}, { 0x0FAE, 12}, { 0x23DE, 14},
1366 { 0x0035, 8}, { 0x0175, 11}, { 0x07B3, 13}, { 0x00C5, 8}, { 0x0174, 11}, { 0x0785, 13},
1367 { 0x0048, 9}, { 0x01A3, 11}, { 0x049E, 13}, { 0x002C, 9}, { 0x00FA, 10}, { 0x07D6, 11},
1368 { 0x0092, 10}, { 0x05CC, 13}, { 0x1EF1, 15}, { 0x00A3, 10}, { 0x03ED, 12}, { 0x093E, 14},
1369 { 0x01E2, 11}, { 0x1273, 15}, { 0x07C4, 11}, { 0x1487, 15}, { 0x0291, 12}, { 0x0293, 12},
1370 { 0x0F8A, 12}, { 0x0509, 13}, { 0x0508, 13}, { 0x078D, 13}, { 0x07BE, 13}, { 0x078C, 13},
1371 { 0x04AE, 14}, { 0x0BBA, 14}, { 0x2307, 14}, { 0x0B9A, 14}, { 0x1736, 15}, { 0x000E, 4},
1372 { 0x0045, 7}, { 0x01F3, 9}, { 0x047A, 11}, { 0x05DC, 13}, { 0x23DF, 14}, { 0x0019, 5},
1373 { 0x0028, 9}, { 0x0176, 11}, { 0x049D, 13}, { 0x23DD, 14}, { 0x0030, 6}, { 0x00A2, 10},
1374 { 0x02EF, 12}, { 0x05B8, 14}, { 0x003F, 6}, { 0x00A5, 10}, { 0x03DB, 12}, { 0x093F, 14},
1375 { 0x0044, 7}, { 0x07CB, 11}, { 0x095F, 15}, { 0x0063, 7}, { 0x03C3, 12}, { 0x0015, 8},
1376 { 0x08F6, 12}, { 0x0017, 8}, { 0x0498, 13}, { 0x002C, 8}, { 0x07B2, 13}, { 0x002F, 8},
1377 { 0x1F54, 13}, { 0x008D, 8}, { 0x07BD, 13}, { 0x008E, 8}, { 0x1182, 13}, { 0x00FB, 8},
1378 { 0x050B, 13}, { 0x002D, 8}, { 0x07C0, 11}, { 0x0079, 9}, { 0x1F5F, 13}, { 0x007A, 9},
1379 { 0x1F56, 13}, { 0x0231, 10}, { 0x03E4, 10}, { 0x01A1, 11}, { 0x0143, 11}, { 0x01F7, 11},
1380 { 0x016F, 12}, { 0x0292, 12}, { 0x02E7, 12}, { 0x016C, 12}, { 0x016D, 12}, { 0x03DC, 12},
1381 { 0x0F8B, 12}, { 0x0499, 13}, { 0x03D8, 12}, { 0x078E, 13}, { 0x02D5, 13}, { 0x1F5E, 13},
1382 { 0x1F2B, 13}, { 0x078F, 13}, { 0x04AD, 14}, { 0x3EAF, 14}, { 0x23DC, 14}, { 0x004A, 9}
1385 { 0x0000, 3}, { 0x0003, 4}, { 0x000B, 5}, { 0x0014, 6}, { 0x003F, 6}, { 0x005D, 7},
1386 { 0x00A2, 8}, { 0x00AC, 9}, { 0x016E, 9}, { 0x020A, 10}, { 0x02E2, 10}, { 0x0432, 11},
1387 { 0x05C9, 11}, { 0x0827, 12}, { 0x0B54, 12}, { 0x04E6, 13}, { 0x105F, 13}, { 0x172A, 13},
1388 { 0x20B2, 14}, { 0x2D4E, 14}, { 0x39F0, 14}, { 0x4175, 15}, { 0x5A9E, 15}, { 0x0004, 4},
1389 { 0x001E, 5}, { 0x0042, 7}, { 0x00B6, 8}, { 0x0173, 9}, { 0x0395, 10}, { 0x072E, 11},
1390 { 0x0B94, 12}, { 0x16A4, 13}, { 0x20B3, 14}, { 0x2E45, 14}, { 0x0005, 5}, { 0x0040, 7},
1391 { 0x0049, 9}, { 0x028F, 10}, { 0x05CB, 11}, { 0x048A, 13}, { 0x09DD, 14}, { 0x73E2, 15},
1392 { 0x0018, 5}, { 0x0025, 8}, { 0x008A, 10}, { 0x051B, 11}, { 0x0E5F, 12}, { 0x09C9, 14},
1393 { 0x139C, 15}, { 0x0029, 6}, { 0x004F, 9}, { 0x0412, 11}, { 0x048D, 13}, { 0x2E41, 14},
1394 { 0x0038, 6}, { 0x010E, 9}, { 0x05A8, 11}, { 0x105C, 13}, { 0x39F2, 14}, { 0x0058, 7},
1395 { 0x021F, 10}, { 0x0E7E, 12}, { 0x39FF, 14}, { 0x0023, 8}, { 0x02E3, 10}, { 0x04E5, 13},
1396 { 0x2E40, 14}, { 0x00A1, 8}, { 0x05BE, 11}, { 0x09C8, 14}, { 0x0083, 8}, { 0x013A, 11},
1397 { 0x1721, 13}, { 0x0044, 9}, { 0x0276, 12}, { 0x39F6, 14}, { 0x008B, 10}, { 0x04EF, 13},
1398 { 0x5A9B, 15}, { 0x0208, 10}, { 0x1CFE, 13}, { 0x0399, 10}, { 0x1CB4, 13}, { 0x039E, 10},
1399 { 0x39F3, 14}, { 0x05AB, 11}, { 0x73E3, 15}, { 0x0737, 11}, { 0x5A9F, 15}, { 0x082D, 12},
1400 { 0x0E69, 12}, { 0x0E68, 12}, { 0x0433, 11}, { 0x0B7B, 12}, { 0x2DF8, 14}, { 0x2E56, 14},
1401 { 0x2E57, 14}, { 0x39F7, 14}, { 0x51A5, 15}, { 0x0003, 3}, { 0x002A, 6}, { 0x00E4, 8},
1402 { 0x028E, 10}, { 0x0735, 11}, { 0x1058, 13}, { 0x1CFA, 13}, { 0x2DF9, 14}, { 0x4174, 15},
1403 { 0x0009, 4}, { 0x0054, 8}, { 0x0398, 10}, { 0x048B, 13}, { 0x139D, 15}, { 0x000D, 4},
1404 { 0x00AD, 9}, { 0x0826, 12}, { 0x2D4C, 14}, { 0x0011, 5}, { 0x016B, 9}, { 0x0B7F, 12},
1405 { 0x51A4, 15}, { 0x0019, 5}, { 0x021B, 10}, { 0x16FD, 13}, { 0x001D, 5}, { 0x0394, 10},
1406 { 0x28D3, 14}, { 0x002B, 6}, { 0x05BC, 11}, { 0x5A9A, 15}, { 0x002F, 6}, { 0x0247, 12},
1407 { 0x0010, 7}, { 0x0A35, 12}, { 0x003E, 6}, { 0x0B7A, 12}, { 0x0059, 7}, { 0x105E, 13},
1408 { 0x0026, 8}, { 0x09CF, 14}, { 0x0055, 8}, { 0x1CB5, 13}, { 0x0057, 8}, { 0x0E5B, 12},
1409 { 0x00A0, 8}, { 0x1468, 13}, { 0x0170, 9}, { 0x0090, 10}, { 0x01CE, 9}, { 0x021A, 10},
1410 { 0x0218, 10}, { 0x0168, 9}, { 0x021E, 10}, { 0x0244, 12}, { 0x0736, 11}, { 0x0138, 11},
1411 { 0x0519, 11}, { 0x0E5E, 12}, { 0x072C, 11}, { 0x0B55, 12}, { 0x09DC, 14}, { 0x20BB, 14},
1412 { 0x048C, 13}, { 0x1723, 13}, { 0x2E44, 14}, { 0x16A5, 13}, { 0x0518, 11}, { 0x39FE, 14},
1416 { 0x0001, 2}, { 0x0006, 3}, { 0x000F, 4}, { 0x0016, 5}, { 0x0020, 6}, { 0x0018, 7},
1417 { 0x0008, 8}, { 0x009A, 8}, { 0x0056, 9}, { 0x013E, 9}, { 0x00F0, 10}, { 0x03A5, 10},
1418 { 0x0077, 11}, { 0x01EF, 11}, { 0x009A, 12}, { 0x005D, 13}, { 0x0001, 4}, { 0x0011, 5},
1419 { 0x0002, 7}, { 0x000B, 8}, { 0x0012, 9}, { 0x01D6, 9}, { 0x027E, 10}, { 0x0191, 11},
1420 { 0x00EA, 12}, { 0x03DC, 12}, { 0x013B, 13}, { 0x0004, 5}, { 0x0014, 7}, { 0x009E, 8},
1421 { 0x0009, 10}, { 0x01AC, 11}, { 0x01E2, 11}, { 0x03CA, 12}, { 0x005F, 13}, { 0x0017, 5},
1422 { 0x004E, 7}, { 0x005E, 9}, { 0x00F3, 10}, { 0x01AD, 11}, { 0x00EC, 12}, { 0x05F0, 13},
1423 { 0x000E, 6}, { 0x00E1, 8}, { 0x03A4, 10}, { 0x009C, 12}, { 0x013D, 13}, { 0x003B, 6},
1424 { 0x001C, 9}, { 0x0014, 11}, { 0x09BE, 12}, { 0x0006, 7}, { 0x007A, 9}, { 0x0190, 11},
1425 { 0x0137, 13}, { 0x001B, 7}, { 0x0008, 10}, { 0x075C, 11}, { 0x0071, 7}, { 0x00D7, 10},
1426 { 0x09BF, 12}, { 0x0007, 8}, { 0x00AF, 10}, { 0x04CC, 11}, { 0x0034, 8}, { 0x0265, 10},
1427 { 0x009F, 12}, { 0x00E0, 8}, { 0x0016, 11}, { 0x0327, 12}, { 0x0015, 9}, { 0x017D, 11},
1428 { 0x0EBB, 12}, { 0x0014, 9}, { 0x00F6, 10}, { 0x01E4, 11}, { 0x00CB, 10}, { 0x099D, 12},
1429 { 0x00CA, 10}, { 0x02FC, 12}, { 0x017F, 11}, { 0x04CD, 11}, { 0x02FD, 12}, { 0x04FE, 11},
1430 { 0x013A, 13}, { 0x000A, 4}, { 0x0042, 7}, { 0x01D3, 9}, { 0x04DD, 11}, { 0x0012, 5},
1431 { 0x00E8, 8}, { 0x004C, 11}, { 0x0136, 13}, { 0x0039, 6}, { 0x0264, 10}, { 0x0EBA, 12},
1432 { 0x0000, 7}, { 0x00AE, 10}, { 0x099C, 12}, { 0x001F, 7}, { 0x04DE, 11}, { 0x0043, 7},
1433 { 0x04DC, 11}, { 0x0003, 8}, { 0x03CB, 12}, { 0x0006, 8}, { 0x099E, 12}, { 0x002A, 8},
1434 { 0x05F1, 13}, { 0x000F, 8}, { 0x09FE, 12}, { 0x0033, 8}, { 0x09FF, 12}, { 0x0098, 8},
1435 { 0x099F, 12}, { 0x00EA, 8}, { 0x013C, 13}, { 0x002E, 8}, { 0x0192, 11}, { 0x0136, 9},
1436 { 0x006A, 9}, { 0x0015, 11}, { 0x03AF, 10}, { 0x01E3, 11}, { 0x0074, 11}, { 0x00EB, 12},
1437 { 0x02F9, 12}, { 0x005C, 13}, { 0x00ED, 12}, { 0x03DD, 12}, { 0x0326, 12}, { 0x005E, 13},
1441 { 0x0004, 3}, { 0x0014, 5}, { 0x0017, 7}, { 0x007F, 8}, { 0x0154, 9}, { 0x01F2, 10},
1442 { 0x00BF, 11}, { 0x0065, 12}, { 0x0AAA, 12}, { 0x0630, 13}, { 0x1597, 13}, { 0x03B7, 14},
1443 { 0x2B22, 14}, { 0x0BE6, 15}, { 0x000B, 4}, { 0x0037, 7}, { 0x0062, 9}, { 0x0007, 11},
1444 { 0x0166, 12}, { 0x00CE, 13}, { 0x1590, 13}, { 0x05F6, 14}, { 0x0BE7, 15}, { 0x0007, 5},
1445 { 0x006D, 8}, { 0x0003, 11}, { 0x031F, 12}, { 0x05F2, 14}, { 0x0002, 6}, { 0x0061, 9},
1446 { 0x0055, 12}, { 0x01DF, 14}, { 0x001A, 6}, { 0x001E, 10}, { 0x0AC9, 12}, { 0x2B23, 14},
1447 { 0x001E, 6}, { 0x001F, 10}, { 0x0AC3, 12}, { 0x2B2B, 14}, { 0x0006, 7}, { 0x0004, 11},
1448 { 0x02F8, 13}, { 0x0019, 7}, { 0x0006, 11}, { 0x063D, 13}, { 0x0057, 7}, { 0x0182, 11},
1449 { 0x2AA2, 14}, { 0x0004, 8}, { 0x0180, 11}, { 0x059C, 14}, { 0x007D, 8}, { 0x0164, 12},
1450 { 0x076D, 15}, { 0x0002, 9}, { 0x018D, 11}, { 0x1581, 13}, { 0x00AD, 8}, { 0x0060, 12},
1451 { 0x0C67, 14}, { 0x001C, 9}, { 0x00EE, 13}, { 0x0003, 9}, { 0x02CF, 13}, { 0x00D9, 9},
1452 { 0x1580, 13}, { 0x0002, 11}, { 0x0183, 11}, { 0x0057, 12}, { 0x0061, 12}, { 0x0031, 11},
1453 { 0x0066, 12}, { 0x0631, 13}, { 0x0632, 13}, { 0x00AC, 13}, { 0x031D, 12}, { 0x0076, 12},
1454 { 0x003A, 11}, { 0x0165, 12}, { 0x0C66, 14}, { 0x0003, 2}, { 0x0054, 7}, { 0x02AB, 10},
1455 { 0x0016, 13}, { 0x05F7, 14}, { 0x0005, 4}, { 0x00F8, 9}, { 0x0AA9, 12}, { 0x005F, 15},
1456 { 0x0004, 4}, { 0x001C, 10}, { 0x1550, 13}, { 0x0004, 5}, { 0x0077, 11}, { 0x076C, 15},
1457 { 0x000E, 5}, { 0x000A, 12}, { 0x000C, 5}, { 0x0562, 11}, { 0x0004, 6}, { 0x031C, 12},
1458 { 0x0006, 6}, { 0x00C8, 13}, { 0x000D, 6}, { 0x01DA, 13}, { 0x0007, 6}, { 0x00C9, 13},
1459 { 0x0001, 7}, { 0x002E, 14}, { 0x0014, 7}, { 0x1596, 13}, { 0x000A, 7}, { 0x0AC2, 12},
1460 { 0x0016, 7}, { 0x015B, 14}, { 0x0015, 7}, { 0x015A, 14}, { 0x000F, 8}, { 0x005E, 15},
1461 { 0x007E, 8}, { 0x00AB, 8}, { 0x002D, 9}, { 0x00D8, 9}, { 0x000B, 9}, { 0x0014, 10},
1462 { 0x02B3, 10}, { 0x01F3, 10}, { 0x003A, 10}, { 0x0000, 10}, { 0x0058, 10}, { 0x002E, 9},
1463 { 0x005E, 10}, { 0x0563, 11}, { 0x00EC, 12}, { 0x0054, 12}, { 0x0AC1, 12}, { 0x1556, 13},
1464 { 0x02FA, 13}, { 0x0181, 11}, { 0x1557, 13}, { 0x059D, 14}, { 0x2AA3, 14}, { 0x2B2A, 14},
1465 { 0x01DE, 14}, { 0x063C, 13}, { 0x00CF, 13}, { 0x1594, 13}, { 0x000D, 9}
1468 { 0x0002, 2}, { 0x0006, 3}, { 0x000F, 4}, { 0x000D, 5}, { 0x000C, 5}, { 0x0015, 6},
1469 { 0x0013, 6}, { 0x0012, 6}, { 0x0017, 7}, { 0x001F, 8}, { 0x001E, 8}, { 0x001D, 8},
1470 { 0x0025, 9}, { 0x0024, 9}, { 0x0023, 9}, { 0x0021, 9}, { 0x0021, 10}, { 0x0020, 10},
1471 { 0x000F, 10}, { 0x000E, 10}, { 0x0007, 11}, { 0x0006, 11}, { 0x0020, 11}, { 0x0021, 11},
1472 { 0x0050, 12}, { 0x0051, 12}, { 0x0052, 12}, { 0x000E, 4}, { 0x0014, 6}, { 0x0016, 7},
1473 { 0x001C, 8}, { 0x0020, 9}, { 0x001F, 9}, { 0x000D, 10}, { 0x0022, 11}, { 0x0053, 12},
1474 { 0x0055, 12}, { 0x000B, 5}, { 0x0015, 7}, { 0x001E, 9}, { 0x000C, 10}, { 0x0056, 12},
1475 { 0x0011, 6}, { 0x001B, 8}, { 0x001D, 9}, { 0x000B, 10}, { 0x0010, 6}, { 0x0022, 9},
1476 { 0x000A, 10}, { 0x000D, 6}, { 0x001C, 9}, { 0x0008, 10}, { 0x0012, 7}, { 0x001B, 9},
1477 { 0x0054, 12}, { 0x0014, 7}, { 0x001A, 9}, { 0x0057, 12}, { 0x0019, 8}, { 0x0009, 10},
1478 { 0x0018, 8}, { 0x0023, 11}, { 0x0017, 8}, { 0x0019, 9}, { 0x0018, 9}, { 0x0007, 10},
1479 { 0x0058, 12}, { 0x0007, 4}, { 0x000C, 6}, { 0x0016, 8}, { 0x0017, 9}, { 0x0006, 10},
1480 { 0x0005, 11}, { 0x0004, 11}, { 0x0059, 12}, { 0x000F, 6}, { 0x0016, 9}, { 0x0005, 10},
1481 { 0x000E, 6}, { 0x0004, 10}, { 0x0011, 7}, { 0x0024, 11}, { 0x0010, 7}, { 0x0025, 11},
1482 { 0x0013, 7}, { 0x005A, 12}, { 0x0015, 8}, { 0x005B, 12}, { 0x0014, 8}, { 0x0013, 8},
1483 { 0x001A, 8}, { 0x0015, 9}, { 0x0014, 9}, { 0x0013, 9}, { 0x0012, 9}, { 0x0011, 9},
1484 { 0x0026, 11}, { 0x0027, 11}, { 0x005C, 12}, { 0x005D, 12}, { 0x005E, 12}, { 0x005F, 12},
1488 { 0x0002, 2}, { 0x000F, 4}, { 0x0015, 6}, { 0x0017, 7}, { 0x001F, 8}, { 0x0025, 9},
1489 { 0x0024, 9}, { 0x0021, 10}, { 0x0020, 10}, { 0x0007, 11}, { 0x0006, 11}, { 0x0020, 11},
1490 { 0x0006, 3}, { 0x0014, 6}, { 0x001E, 8}, { 0x000F, 10}, { 0x0021, 11}, { 0x0050, 12},
1491 { 0x000E, 4}, { 0x001D, 8}, { 0x000E, 10}, { 0x0051, 12}, { 0x000D, 5}, { 0x0023, 9},
1492 { 0x000D, 10}, { 0x000C, 5}, { 0x0022, 9}, { 0x0052, 12}, { 0x000B, 5}, { 0x000C, 10},
1493 { 0x0053, 12}, { 0x0013, 6}, { 0x000B, 10}, { 0x0054, 12}, { 0x0012, 6}, { 0x000A, 10},
1494 { 0x0011, 6}, { 0x0009, 10}, { 0x0010, 6}, { 0x0008, 10}, { 0x0016, 7}, { 0x0055, 12},
1495 { 0x0015, 7}, { 0x0014, 7}, { 0x001C, 8}, { 0x001B, 8}, { 0x0021, 9}, { 0x0020, 9},
1496 { 0x001F, 9}, { 0x001E, 9}, { 0x001D, 9}, { 0x001C, 9}, { 0x001B, 9}, { 0x001A, 9},
1497 { 0x0022, 11}, { 0x0023, 11}, { 0x0056, 12}, { 0x0057, 12}, { 0x0007, 4}, { 0x0019, 9},
1498 { 0x0005, 11}, { 0x000F, 6}, { 0x0004, 11}, { 0x000E, 6}, { 0x000D, 6}, { 0x000C, 6},
1499 { 0x0013, 7}, { 0x0012, 7}, { 0x0011, 7}, { 0x0010, 7}, { 0x001A, 8}, { 0x0019, 8},
1500 { 0x0018, 8}, { 0x0017, 8}, { 0x0016, 8}, { 0x0015, 8}, { 0x0014, 8}, { 0x0013, 8},
1501 { 0x0018, 9}, { 0x0017, 9}, { 0x0016, 9}, { 0x0015, 9}, { 0x0014, 9}, { 0x0013, 9},
1502 { 0x0012, 9}, { 0x0011, 9}, { 0x0007, 10}, { 0x0006, 10}, { 0x0005, 10}, { 0x0004, 10},
1503 { 0x0024, 11}, { 0x0025, 11}, { 0x0026, 11}, { 0x0027, 11}, { 0x0058, 12}, { 0x0059, 12},
1504 { 0x005A, 12}, { 0x005B, 12}, { 0x005C, 12}, { 0x005D, 12}, { 0x005E, 12}, { 0x005F, 12},
1508 { 0x0000, 2}, { 0x0003, 3}, { 0x000D, 4}, { 0x0005, 4}, { 0x001C, 5}, { 0x0016, 5},
1509 { 0x003F, 6}, { 0x003A, 6}, { 0x002E, 6}, { 0x0022, 6}, { 0x007B, 7}, { 0x0067, 7},
1510 { 0x005F, 7}, { 0x0047, 7}, { 0x0026, 7}, { 0x00EF, 8}, { 0x00CD, 8}, { 0x00C1, 8},
1511 { 0x00A9, 8}, { 0x004F, 8}, { 0x01F2, 9}, { 0x01DD, 9}, { 0x0199, 9}, { 0x0185, 9},
1512 { 0x015D, 9}, { 0x011B, 9}, { 0x03EF, 10}, { 0x03E1, 10}, { 0x03C8, 10}, { 0x0331, 10},
1513 { 0x0303, 10}, { 0x02F1, 10}, { 0x02A0, 10}, { 0x0233, 10}, { 0x0126, 10}, { 0x07C0, 11},
1514 { 0x076F, 11}, { 0x076C, 11}, { 0x0661, 11}, { 0x0604, 11}, { 0x0572, 11}, { 0x0551, 11},
1515 { 0x046A, 11}, { 0x0274, 11}, { 0x0F27, 12}, { 0x0F24, 12}, { 0x0EDB, 12}, { 0x0C8E, 12},
1516 { 0x0C0B, 12}, { 0x0C0A, 12}, { 0x0AE3, 12}, { 0x08D6, 12}, { 0x0490, 12}, { 0x0495, 12},
1517 { 0x1F19, 13}, { 0x1DB5, 13}, { 0x0009, 4}, { 0x0010, 5}, { 0x0029, 6}, { 0x0062, 7},
1518 { 0x00F3, 8}, { 0x00AD, 8}, { 0x01E5, 9}, { 0x0179, 9}, { 0x009C, 9}, { 0x03B1, 10},
1519 { 0x02AE, 10}, { 0x0127, 10}, { 0x076E, 11}, { 0x0570, 11}, { 0x0275, 11}, { 0x0F25, 12},
1520 { 0x0EC0, 12}, { 0x0AA0, 12}, { 0x08D7, 12}, { 0x1E4C, 13}, { 0x0008, 5}, { 0x0063, 7},
1521 { 0x00AF, 8}, { 0x017B, 9}, { 0x03B3, 10}, { 0x07DD, 11}, { 0x0640, 11}, { 0x0F8D, 12},
1522 { 0x0BC1, 12}, { 0x0491, 12}, { 0x0028, 6}, { 0x00C3, 8}, { 0x0151, 9}, { 0x02A1, 10},
1523 { 0x0573, 11}, { 0x0EC3, 12}, { 0x1F35, 13}, { 0x0065, 7}, { 0x01DA, 9}, { 0x02AF, 10},
1524 { 0x0277, 11}, { 0x08C9, 12}, { 0x1781, 13}, { 0x0025, 7}, { 0x0118, 9}, { 0x0646, 11},
1525 { 0x0AA6, 12}, { 0x1780, 13}, { 0x00C9, 8}, { 0x0321, 10}, { 0x0F9B, 12}, { 0x191E, 13},
1526 { 0x0048, 8}, { 0x07CC, 11}, { 0x0AA1, 12}, { 0x0180, 9}, { 0x0465, 11}, { 0x1905, 13},
1527 { 0x03E2, 10}, { 0x0EC1, 12}, { 0x3C9B, 14}, { 0x02F4, 10}, { 0x08C8, 12}, { 0x07C1, 11},
1528 { 0x0928, 13}, { 0x05E1, 11}, { 0x320D, 14}, { 0x0EC2, 12}, { 0x6418, 15}, { 0x1F34, 13},
1529 { 0x0078, 7}, { 0x0155, 9}, { 0x0552, 11}, { 0x191F, 13}, { 0x00FA, 8}, { 0x07DC, 11},
1530 { 0x1907, 13}, { 0x00AC, 8}, { 0x0249, 11}, { 0x13B1, 14}, { 0x01F6, 9}, { 0x0AE2, 12},
1531 { 0x01DC, 9}, { 0x04ED, 12}, { 0x0184, 9}, { 0x1904, 13}, { 0x0156, 9}, { 0x09D9, 13},
1532 { 0x03E7, 10}, { 0x0929, 13}, { 0x03B2, 10}, { 0x3B68, 14}, { 0x02F5, 10}, { 0x13B0, 14},
1533 { 0x0322, 10}, { 0x3B69, 14}, { 0x0234, 10}, { 0x7935, 15}, { 0x07C7, 11}, { 0xC833, 16},
1534 { 0x0660, 11}, { 0x7934, 15}, { 0x024B, 11}, { 0xC832, 16}, { 0x0AA7, 12}, { 0x1F18, 13},
1538 { 0x0002, 2}, { 0x0000, 3}, { 0x001E, 5}, { 0x0004, 5}, { 0x0012, 6}, { 0x0070, 7},
1539 { 0x001A, 7}, { 0x005F, 8}, { 0x0047, 8}, { 0x01D3, 9}, { 0x00B5, 9}, { 0x0057, 9},
1540 { 0x03B5, 10}, { 0x016D, 10}, { 0x0162, 10}, { 0x07CE, 11}, { 0x0719, 11}, { 0x0691, 11},
1541 { 0x02C6, 11}, { 0x0156, 11}, { 0x0F92, 12}, { 0x0D2E, 12}, { 0x0D20, 12}, { 0x059E, 12},
1542 { 0x0468, 12}, { 0x02A6, 12}, { 0x1DA2, 13}, { 0x1C60, 13}, { 0x1A43, 13}, { 0x0B1D, 13},
1543 { 0x08C0, 13}, { 0x055D, 13}, { 0x0003, 3}, { 0x000A, 5}, { 0x0077, 7}, { 0x00E5, 8},
1544 { 0x01D9, 9}, { 0x03E5, 10}, { 0x0166, 10}, { 0x0694, 11}, { 0x0152, 11}, { 0x059F, 12},
1545 { 0x1F3C, 13}, { 0x1A4B, 13}, { 0x055E, 13}, { 0x000C, 4}, { 0x007D, 7}, { 0x0044, 8},
1546 { 0x03E0, 10}, { 0x0769, 11}, { 0x0E31, 12}, { 0x1F26, 13}, { 0x055C, 13}, { 0x001B, 5},
1547 { 0x00E2, 8}, { 0x03A5, 10}, { 0x02C9, 11}, { 0x1F23, 13}, { 0x3B47, 14}, { 0x0007, 5},
1548 { 0x01D8, 9}, { 0x02D8, 11}, { 0x1F27, 13}, { 0x3494, 14}, { 0x0035, 6}, { 0x03E1, 10},
1549 { 0x059C, 12}, { 0x38C3, 14}, { 0x000C, 6}, { 0x0165, 10}, { 0x1D23, 13}, { 0x1638, 14},
1550 { 0x0068, 7}, { 0x0693, 11}, { 0x3A45, 14}, { 0x0020, 7}, { 0x0F90, 12}, { 0x7CF6, 15},
1551 { 0x00E8, 8}, { 0x058F, 12}, { 0x2CEF, 15}, { 0x0045, 8}, { 0x0B3A, 13}, { 0x01F1, 9},
1552 { 0x3B46, 14}, { 0x01A7, 9}, { 0x1676, 14}, { 0x0056, 9}, { 0x692A, 15}, { 0x038D, 10},
1553 { 0xE309, 16}, { 0x00AA, 10}, { 0x1C611, 17}, { 0x02DF, 11}, { 0xB3B9, 17}, { 0x02C8, 11},
1554 { 0x38C20, 18}, { 0x01B0, 11}, { 0x16390, 18}, { 0x0F9F, 12}, { 0x16771, 18}, { 0x0ED0, 12},
1555 { 0x71843, 19}, { 0x0D2A, 12}, { 0xF9E8C, 20}, { 0x0461, 12}, { 0xF9E8E, 20}, { 0x0B67, 13},
1556 { 0x055F, 13}, { 0x003F, 6}, { 0x006D, 9}, { 0x0E90, 12}, { 0x054E, 13}, { 0x0013, 6},
1557 { 0x0119, 10}, { 0x0B66, 13}, { 0x000B, 6}, { 0x0235, 11}, { 0x7CF5, 15}, { 0x0075, 7},
1558 { 0x0D24, 12}, { 0xF9E9, 16}, { 0x002E, 7}, { 0x1F22, 13}, { 0x0021, 7}, { 0x054F, 13},
1559 { 0x0014, 7}, { 0x3A44, 14}, { 0x00E4, 8}, { 0x7CF7, 15}, { 0x005E, 8}, { 0x7185, 15},
1560 { 0x0037, 8}, { 0x2C73, 15}, { 0x01DB, 9}, { 0x59DD, 16}, { 0x01C7, 9}, { 0x692B, 15},
1561 { 0x01A6, 9}, { 0x58E5, 16}, { 0x00B4, 9}, { 0x1F3D0, 17}, { 0x00B0, 9}, { 0xB1C9, 17},
1562 { 0x03E6, 10}, { 0x16770, 18}, { 0x016E, 10}, { 0x3E7A2, 18}, { 0x011B, 10}, { 0xF9E8D, 20},
1563 { 0x00D9, 10}, { 0xF9E8F, 20}, { 0x00A8, 10}, { 0x2C723, 19}, { 0x0749, 11}, { 0xE3084, 20},
1564 { 0x0696, 11}, { 0x58E45, 20}, { 0x02DE, 11}, { 0xB1C88, 21}, { 0x0231, 11}, { 0x1C610A, 21},
1565 { 0x01B1, 11}, { 0x71842D, 23}, { 0x0D2B, 12}, { 0x38C217, 22}, { 0x0D2F, 12}, { 0x163913, 22},
1566 { 0x05B2, 12}, { 0x163912, 22}, { 0x0469, 12}, { 0x71842C, 23}, { 0x1A42, 13}, { 0x08C1, 13},
1571 static const uint16_t vlc_offs[] = {
1572 0, 520, 552, 616, 1128, 1160, 1224, 1740, 1772, 1836, 1900, 2436,
1573 2986, 3050, 3610, 4154, 4218, 4746, 5326, 5390, 5902, 6554, 7658, 8342,
1574 9304, 9988, 10630, 11234, 12174, 13006, 13560, 14232, 14786, 15432, 16350, 17522,
1575 20372, 21818, 22330, 22394, 23166, 23678, 23742, 24820, 25332, 25396, 26460, 26980,
1576 27048, 27592, 27600, 27608, 27616, 27624, 28224, 28258, 28290, 28802, 28834, 28866,
1577 29378, 29412, 29444, 29960, 29994, 30026, 30538, 30572, 30604, 31120, 31154, 31186,
1578 31714, 31746, 31778, 32306, 32340, 32372
1582 * Init VC-1 specific tables and VC1Context members
1583 * @param v The VC1Context to initialize
1586 av_cold int ff_vc1_init_common(VC1Context *v)
1588 static int done = 0;
1590 static VLC_TYPE vlc_table[32372][2];
1592 v->hrd_rate = v->hrd_buffer = NULL;
1596 INIT_VLC_STATIC(&ff_vc1_bfraction_vlc, VC1_BFRACTION_VLC_BITS, 23,
1597 ff_vc1_bfraction_bits, 1, 1,
1598 ff_vc1_bfraction_codes, 1, 1, 1 << VC1_BFRACTION_VLC_BITS);
1599 INIT_VLC_STATIC(&ff_vc1_norm2_vlc, VC1_NORM2_VLC_BITS, 4,
1600 ff_vc1_norm2_bits, 1, 1,
1601 ff_vc1_norm2_codes, 1, 1, 1 << VC1_NORM2_VLC_BITS);
1602 INIT_VLC_STATIC(&ff_vc1_norm6_vlc, VC1_NORM6_VLC_BITS, 64,
1603 ff_vc1_norm6_bits, 1, 1,
1604 ff_vc1_norm6_codes, 2, 2, 556);
1605 INIT_VLC_STATIC(&ff_vc1_imode_vlc, VC1_IMODE_VLC_BITS, 7,
1606 ff_vc1_imode_bits, 1, 1,
1607 ff_vc1_imode_codes, 1, 1, 1 << VC1_IMODE_VLC_BITS);
1608 for (i = 0; i < 3; i++) {
1609 ff_vc1_ttmb_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 0]];
1610 ff_vc1_ttmb_vlc[i].table_allocated = vlc_offs[i * 3 + 1] - vlc_offs[i * 3 + 0];
1611 init_vlc(&ff_vc1_ttmb_vlc[i], VC1_TTMB_VLC_BITS, 16,
1612 ff_vc1_ttmb_bits[i], 1, 1,
1613 ff_vc1_ttmb_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
1614 ff_vc1_ttblk_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 1]];
1615 ff_vc1_ttblk_vlc[i].table_allocated = vlc_offs[i * 3 + 2] - vlc_offs[i * 3 + 1];
1616 init_vlc(&ff_vc1_ttblk_vlc[i], VC1_TTBLK_VLC_BITS, 8,
1617 ff_vc1_ttblk_bits[i], 1, 1,
1618 ff_vc1_ttblk_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1619 ff_vc1_subblkpat_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 2]];
1620 ff_vc1_subblkpat_vlc[i].table_allocated = vlc_offs[i * 3 + 3] - vlc_offs[i * 3 + 2];
1621 init_vlc(&ff_vc1_subblkpat_vlc[i], VC1_SUBBLKPAT_VLC_BITS, 15,
1622 ff_vc1_subblkpat_bits[i], 1, 1,
1623 ff_vc1_subblkpat_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1625 for (i = 0; i < 4; i++) {
1626 ff_vc1_4mv_block_pattern_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 9]];
1627 ff_vc1_4mv_block_pattern_vlc[i].table_allocated = vlc_offs[i * 3 + 10] - vlc_offs[i * 3 + 9];
1628 init_vlc(&ff_vc1_4mv_block_pattern_vlc[i], VC1_4MV_BLOCK_PATTERN_VLC_BITS, 16,
1629 ff_vc1_4mv_block_pattern_bits[i], 1, 1,
1630 ff_vc1_4mv_block_pattern_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1631 ff_vc1_cbpcy_p_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 10]];
1632 ff_vc1_cbpcy_p_vlc[i].table_allocated = vlc_offs[i * 3 + 11] - vlc_offs[i * 3 + 10];
1633 init_vlc(&ff_vc1_cbpcy_p_vlc[i], VC1_CBPCY_P_VLC_BITS, 64,
1634 ff_vc1_cbpcy_p_bits[i], 1, 1,
1635 ff_vc1_cbpcy_p_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
1636 ff_vc1_mv_diff_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 11]];
1637 ff_vc1_mv_diff_vlc[i].table_allocated = vlc_offs[i * 3 + 12] - vlc_offs[i * 3 + 11];
1638 init_vlc(&ff_vc1_mv_diff_vlc[i], VC1_MV_DIFF_VLC_BITS, 73,
1639 ff_vc1_mv_diff_bits[i], 1, 1,
1640 ff_vc1_mv_diff_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
1642 for (i = 0; i < 8; i++) {
1643 ff_vc1_ac_coeff_table[i].table = &vlc_table[vlc_offs[i * 2 + 21]];
1644 ff_vc1_ac_coeff_table[i].table_allocated = vlc_offs[i * 2 + 22] - vlc_offs[i * 2 + 21];
1645 init_vlc(&ff_vc1_ac_coeff_table[i], AC_VLC_BITS, ff_vc1_ac_sizes[i],
1646 &vc1_ac_tables[i][0][1], 8, 4,
1647 &vc1_ac_tables[i][0][0], 8, 4, INIT_VLC_USE_NEW_STATIC);
1648 /* initialize interlaced MVDATA tables (2-Ref) */
1649 ff_vc1_2ref_mvdata_vlc[i].table = &vlc_table[vlc_offs[i * 2 + 22]];
1650 ff_vc1_2ref_mvdata_vlc[i].table_allocated = vlc_offs[i * 2 + 23] - vlc_offs[i * 2 + 22];
1651 init_vlc(&ff_vc1_2ref_mvdata_vlc[i], VC1_2REF_MVDATA_VLC_BITS, 126,
1652 ff_vc1_2ref_mvdata_bits[i], 1, 1,
1653 ff_vc1_2ref_mvdata_codes[i], 4, 4, INIT_VLC_USE_NEW_STATIC);
1655 for (i = 0; i < 4; i++) {
1656 /* initialize 4MV MBMODE VLC tables for interlaced frame P picture */
1657 ff_vc1_intfr_4mv_mbmode_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 37]];
1658 ff_vc1_intfr_4mv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 38] - vlc_offs[i * 3 + 37];
1659 init_vlc(&ff_vc1_intfr_4mv_mbmode_vlc[i], VC1_INTFR_4MV_MBMODE_VLC_BITS, 15,
1660 ff_vc1_intfr_4mv_mbmode_bits[i], 1, 1,
1661 ff_vc1_intfr_4mv_mbmode_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
1662 /* initialize NON-4MV MBMODE VLC tables for the same */
1663 ff_vc1_intfr_non4mv_mbmode_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 38]];
1664 ff_vc1_intfr_non4mv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 39] - vlc_offs[i * 3 + 38];
1665 init_vlc(&ff_vc1_intfr_non4mv_mbmode_vlc[i], VC1_INTFR_NON4MV_MBMODE_VLC_BITS, 9,
1666 ff_vc1_intfr_non4mv_mbmode_bits[i], 1, 1,
1667 ff_vc1_intfr_non4mv_mbmode_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1668 /* initialize interlaced MVDATA tables (1-Ref) */
1669 ff_vc1_1ref_mvdata_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 39]];
1670 ff_vc1_1ref_mvdata_vlc[i].table_allocated = vlc_offs[i * 3 + 40] - vlc_offs[i * 3 + 39];
1671 init_vlc(&ff_vc1_1ref_mvdata_vlc[i], VC1_1REF_MVDATA_VLC_BITS, 72,
1672 ff_vc1_1ref_mvdata_bits[i], 1, 1,
1673 ff_vc1_1ref_mvdata_codes[i], 4, 4, INIT_VLC_USE_NEW_STATIC);
1675 for (i = 0; i < 4; i++) {
1676 /* Initialize 2MV Block pattern VLC tables */
1677 ff_vc1_2mv_block_pattern_vlc[i].table = &vlc_table[vlc_offs[i + 49]];
1678 ff_vc1_2mv_block_pattern_vlc[i].table_allocated = vlc_offs[i + 50] - vlc_offs[i + 49];
1679 init_vlc(&ff_vc1_2mv_block_pattern_vlc[i], VC1_2MV_BLOCK_PATTERN_VLC_BITS, 4,
1680 ff_vc1_2mv_block_pattern_bits[i], 1, 1,
1681 ff_vc1_2mv_block_pattern_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1683 for (i = 0; i < 8; i++) {
1684 /* Initialize interlaced CBPCY VLC tables (Table 124 - Table 131) */
1685 ff_vc1_icbpcy_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 53]];
1686 ff_vc1_icbpcy_vlc[i].table_allocated = vlc_offs[i * 3 + 54] - vlc_offs[i * 3 + 53];
1687 init_vlc(&ff_vc1_icbpcy_vlc[i], VC1_ICBPCY_VLC_BITS, 63,
1688 ff_vc1_icbpcy_p_bits[i], 1, 1,
1689 ff_vc1_icbpcy_p_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
1690 /* Initialize interlaced field picture MBMODE VLC tables */
1691 ff_vc1_if_mmv_mbmode_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 54]];
1692 ff_vc1_if_mmv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 55] - vlc_offs[i * 3 + 54];
1693 init_vlc(&ff_vc1_if_mmv_mbmode_vlc[i], VC1_IF_MMV_MBMODE_VLC_BITS, 8,
1694 ff_vc1_if_mmv_mbmode_bits[i], 1, 1,
1695 ff_vc1_if_mmv_mbmode_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1696 ff_vc1_if_1mv_mbmode_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 55]];
1697 ff_vc1_if_1mv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 56] - vlc_offs[i * 3 + 55];
1698 init_vlc(&ff_vc1_if_1mv_mbmode_vlc[i], VC1_IF_1MV_MBMODE_VLC_BITS, 6,
1699 ff_vc1_if_1mv_mbmode_bits[i], 1, 1,
1700 ff_vc1_if_1mv_mbmode_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1705 /* Other defaults */
1707 v->mvrange = 0; /* 7.1.1.18, p80 */