2 * VC-1 and WMV3 decoder common code
3 * Copyright (c) 2011 Mashiat Sarker Shakkhar
4 * Copyright (c) 2006-2007 Konstantin Shishkov
5 * Partly based on vc9.c (c) 2005 Anonymous, Alex Beregszaszi, Michael Niedermayer
7 * This file is part of FFmpeg.
9 * FFmpeg is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
14 * FFmpeg is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with FFmpeg; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
26 * VC-1 and WMV3 decoder common code
29 #include "libavutil/attributes.h"
32 #include "mpegvideo.h"
37 #include "simple_idct.h"
39 /***********************************************************************/
41 * @name VC-1 Bitplane decoding
46 /** Decode rows by checking if they are skipped
47 * @param plane Buffer to store decoded bits
48 * @param[in] width Width of this buffer
49 * @param[in] height Height of this buffer
50 * @param[in] stride of this buffer
52 static void decode_rowskip(uint8_t* plane, int width, int height, int stride,
57 for (y = 0; y < height; y++) {
58 if (!get_bits1(gb)) //rowskip
59 memset(plane, 0, width);
61 for (x = 0; x < width; x++)
62 plane[x] = get_bits1(gb);
67 /** Decode columns by checking if they are skipped
68 * @param plane Buffer to store decoded bits
69 * @param[in] width Width of this buffer
70 * @param[in] height Height of this buffer
71 * @param[in] stride of this buffer
72 * @todo FIXME: Optimize
74 static void decode_colskip(uint8_t* plane, int width, int height, int stride,
79 for (x = 0; x < width; x++) {
80 if (!get_bits1(gb)) //colskip
81 for (y = 0; y < height; y++)
84 for (y = 0; y < height; y++)
85 plane[y*stride] = get_bits1(gb);
90 /** Decode a bitplane's bits
91 * @param data bitplane where to store the decode bits
92 * @param[out] raw_flag pointer to the flag indicating that this bitplane is not coded explicitly
93 * @param v VC-1 context for bit reading and logging
95 * @todo FIXME: Optimize
97 static int bitplane_decoding(uint8_t* data, int *raw_flag, VC1Context *v)
99 GetBitContext *gb = &v->s.gb;
101 int imode, x, y, code, offset;
102 uint8_t invert, *planep = data;
103 int width, height, stride;
105 width = v->s.mb_width;
106 height = v->s.mb_height >> v->field_mode;
107 stride = v->s.mb_stride;
108 invert = get_bits1(gb);
109 imode = get_vlc2(gb, ff_vc1_imode_vlc.table, VC1_IMODE_VLC_BITS, 1);
114 //Data is actually read in the MB layer (same for all tests == "raw")
115 *raw_flag = 1; //invert ignored
119 if ((height * width) & 1) {
120 *planep++ = get_bits1(gb);
122 if (offset == width) {
124 planep += stride - width;
129 // decode bitplane as one long line
130 for (; y < height * width; y += 2) {
131 code = get_vlc2(gb, ff_vc1_norm2_vlc.table, VC1_NORM2_VLC_BITS, 1);
132 *planep++ = code & 1;
134 if (offset == width) {
136 planep += stride - width;
138 *planep++ = code >> 1;
140 if (offset == width) {
142 planep += stride - width;
148 if (!(height % 3) && (width % 3)) { // use 2x3 decoding
149 for (y = 0; y < height; y += 3) {
150 for (x = width & 1; x < width; x += 2) {
151 code = get_vlc2(gb, ff_vc1_norm6_vlc.table, VC1_NORM6_VLC_BITS, 2);
153 av_log(v->s.avctx, AV_LOG_DEBUG, "invalid NORM-6 VLC\n");
156 planep[x + 0] = (code >> 0) & 1;
157 planep[x + 1] = (code >> 1) & 1;
158 planep[x + 0 + stride] = (code >> 2) & 1;
159 planep[x + 1 + stride] = (code >> 3) & 1;
160 planep[x + 0 + stride * 2] = (code >> 4) & 1;
161 planep[x + 1 + stride * 2] = (code >> 5) & 1;
163 planep += stride * 3;
166 decode_colskip(data, 1, height, stride, &v->s.gb);
168 planep += (height & 1) * stride;
169 for (y = height & 1; y < height; y += 2) {
170 for (x = width % 3; x < width; x += 3) {
171 code = get_vlc2(gb, ff_vc1_norm6_vlc.table, VC1_NORM6_VLC_BITS, 2);
173 av_log(v->s.avctx, AV_LOG_DEBUG, "invalid NORM-6 VLC\n");
176 planep[x + 0] = (code >> 0) & 1;
177 planep[x + 1] = (code >> 1) & 1;
178 planep[x + 2] = (code >> 2) & 1;
179 planep[x + 0 + stride] = (code >> 3) & 1;
180 planep[x + 1 + stride] = (code >> 4) & 1;
181 planep[x + 2 + stride] = (code >> 5) & 1;
183 planep += stride * 2;
187 decode_colskip(data, x, height, stride, &v->s.gb);
189 decode_rowskip(data + x, width - x, 1, stride, &v->s.gb);
193 decode_rowskip(data, width, height, stride, &v->s.gb);
196 decode_colskip(data, width, height, stride, &v->s.gb);
202 /* Applying diff operator */
203 if (imode == IMODE_DIFF2 || imode == IMODE_DIFF6) {
206 for (x = 1; x < width; x++)
207 planep[x] ^= planep[x-1];
208 for (y = 1; y < height; y++) {
210 planep[0] ^= planep[-stride];
211 for (x = 1; x < width; x++) {
212 if (planep[x-1] != planep[x-stride]) planep[x] ^= invert;
213 else planep[x] ^= planep[x-1];
218 for (x = 0; x < stride * height; x++)
219 planep[x] = !planep[x]; //FIXME stride
221 return (imode << 1) + invert;
224 /** @} */ //Bitplane group
226 /***********************************************************************/
227 /** VOP Dquant decoding
228 * @param v VC-1 Context
230 static int vop_dquant_decoding(VC1Context *v)
232 GetBitContext *gb = &v->s.gb;
236 if (v->dquant != 2) {
237 v->dquantfrm = get_bits1(gb);
241 v->dqprofile = get_bits(gb, 2);
242 switch (v->dqprofile) {
243 case DQPROFILE_SINGLE_EDGE:
244 case DQPROFILE_DOUBLE_EDGES:
245 v->dqsbedge = get_bits(gb, 2);
247 case DQPROFILE_ALL_MBS:
248 v->dqbilevel = get_bits1(gb);
258 pqdiff = get_bits(gb, 3);
260 v->altpq = get_bits(gb, 5);
262 v->altpq = v->pq + pqdiff + 1;
267 static int decode_sequence_header_adv(VC1Context *v, GetBitContext *gb);
270 * Decode Simple/Main Profiles sequence header
271 * @see Figure 7-8, p16-17
272 * @param avctx Codec context
273 * @param gb GetBit context initialized from Codec context extra_data
276 int ff_vc1_decode_sequence_header(AVCodecContext *avctx, VC1Context *v, GetBitContext *gb)
278 av_log(avctx, AV_LOG_DEBUG, "Header: %0X\n", show_bits_long(gb, 32));
279 v->profile = get_bits(gb, 2);
280 if (v->profile == PROFILE_COMPLEX) {
281 av_log(avctx, AV_LOG_WARNING, "WMV3 Complex Profile is not fully supported\n");
284 if (v->profile == PROFILE_ADVANCED) {
285 v->zz_8x4 = ff_vc1_adv_progressive_8x4_zz;
286 v->zz_4x8 = ff_vc1_adv_progressive_4x8_zz;
287 return decode_sequence_header_adv(v, gb);
290 v->zz_8x4 = ff_wmv2_scantableA;
291 v->zz_4x8 = ff_wmv2_scantableB;
292 v->res_y411 = get_bits1(gb);
293 v->res_sprite = get_bits1(gb);
295 av_log(avctx, AV_LOG_ERROR,
296 "Old interlaced mode is not supported\n");
302 v->frmrtq_postproc = get_bits(gb, 3); //common
303 // (bitrate-32kbps)/64kbps
304 v->bitrtq_postproc = get_bits(gb, 5); //common
305 v->s.loop_filter = get_bits1(gb); //common
306 if (v->s.loop_filter == 1 && v->profile == PROFILE_SIMPLE) {
307 av_log(avctx, AV_LOG_ERROR,
308 "LOOPFILTER shall not be enabled in Simple Profile\n");
310 if (v->s.avctx->skip_loop_filter >= AVDISCARD_ALL)
311 v->s.loop_filter = 0;
313 v->res_x8 = get_bits1(gb); //reserved
314 v->multires = get_bits1(gb);
315 v->res_fasttx = get_bits1(gb);
316 if (!v->res_fasttx) {
317 v->vc1dsp.vc1_inv_trans_8x8 = ff_simple_idct_int16_8bit;
318 v->vc1dsp.vc1_inv_trans_8x4 = ff_simple_idct84_add;
319 v->vc1dsp.vc1_inv_trans_4x8 = ff_simple_idct48_add;
320 v->vc1dsp.vc1_inv_trans_4x4 = ff_simple_idct44_add;
321 v->vc1dsp.vc1_inv_trans_8x8_dc = ff_simple_idct_add_int16_8bit;
322 v->vc1dsp.vc1_inv_trans_8x4_dc = ff_simple_idct84_add;
323 v->vc1dsp.vc1_inv_trans_4x8_dc = ff_simple_idct48_add;
324 v->vc1dsp.vc1_inv_trans_4x4_dc = ff_simple_idct44_add;
327 v->fastuvmc = get_bits1(gb); //common
328 if (!v->profile && !v->fastuvmc) {
329 av_log(avctx, AV_LOG_ERROR,
330 "FASTUVMC unavailable in Simple Profile\n");
333 v->extended_mv = get_bits1(gb); //common
334 if (!v->profile && v->extended_mv) {
335 av_log(avctx, AV_LOG_ERROR,
336 "Extended MVs unavailable in Simple Profile\n");
339 v->dquant = get_bits(gb, 2); //common
340 v->vstransform = get_bits1(gb); //common
342 v->res_transtab = get_bits1(gb);
343 if (v->res_transtab) {
344 av_log(avctx, AV_LOG_ERROR,
345 "1 for reserved RES_TRANSTAB is forbidden\n");
349 v->overlap = get_bits1(gb); //common
351 v->resync_marker = get_bits1(gb);
352 v->rangered = get_bits1(gb);
353 if (v->rangered && v->profile == PROFILE_SIMPLE) {
354 av_log(avctx, AV_LOG_INFO,
355 "RANGERED should be set to 0 in Simple Profile\n");
358 v->s.max_b_frames = avctx->max_b_frames = get_bits(gb, 3); //common
359 v->quantizer_mode = get_bits(gb, 2); //common
361 v->finterpflag = get_bits1(gb); //common
364 int w = get_bits(gb, 11);
365 int h = get_bits(gb, 11);
366 int ret = ff_set_dimensions(v->s.avctx, w, h);
368 av_log(avctx, AV_LOG_ERROR, "Failed to set dimensions %d %d\n", w, h);
371 skip_bits(gb, 5); //frame rate
372 v->res_x8 = get_bits1(gb);
373 if (get_bits1(gb)) { // something to do with DC VLC selection
374 av_log(avctx, AV_LOG_ERROR, "Unsupported sprite feature\n");
377 skip_bits(gb, 3); //slice code
380 v->res_rtm_flag = get_bits1(gb); //reserved
382 if (!v->res_rtm_flag) {
383 av_log(avctx, AV_LOG_ERROR,
384 "Old WMV3 version detected, some frames may be decoded incorrectly\n");
387 //TODO: figure out what they mean (always 0x402F)
390 av_log(avctx, AV_LOG_DEBUG,
391 "Profile %i:\nfrmrtq_postproc=%i, bitrtq_postproc=%i\n"
392 "LoopFilter=%i, MultiRes=%i, FastUVMC=%i, Extended MV=%i\n"
393 "Rangered=%i, VSTransform=%i, Overlap=%i, SyncMarker=%i\n"
394 "DQuant=%i, Quantizer mode=%i, Max B-frames=%i\n",
395 v->profile, v->frmrtq_postproc, v->bitrtq_postproc,
396 v->s.loop_filter, v->multires, v->fastuvmc, v->extended_mv,
397 v->rangered, v->vstransform, v->overlap, v->resync_marker,
398 v->dquant, v->quantizer_mode, avctx->max_b_frames);
402 static int decode_sequence_header_adv(VC1Context *v, GetBitContext *gb)
405 v->level = get_bits(gb, 3);
407 av_log(v->s.avctx, AV_LOG_ERROR, "Reserved LEVEL %i\n",v->level);
409 v->chromaformat = get_bits(gb, 2);
410 if (v->chromaformat != 1) {
411 av_log(v->s.avctx, AV_LOG_ERROR,
412 "Only 4:2:0 chroma format supported\n");
417 v->frmrtq_postproc = get_bits(gb, 3); //common
418 // (bitrate-32kbps)/64kbps
419 v->bitrtq_postproc = get_bits(gb, 5); //common
420 v->postprocflag = get_bits1(gb); //common
422 v->max_coded_width = (get_bits(gb, 12) + 1) << 1;
423 v->max_coded_height = (get_bits(gb, 12) + 1) << 1;
424 v->broadcast = get_bits1(gb);
425 v->interlace = get_bits1(gb);
426 v->tfcntrflag = get_bits1(gb);
427 v->finterpflag = get_bits1(gb);
428 skip_bits1(gb); // reserved
430 av_log(v->s.avctx, AV_LOG_DEBUG,
431 "Advanced Profile level %i:\nfrmrtq_postproc=%i, bitrtq_postproc=%i\n"
432 "LoopFilter=%i, ChromaFormat=%i, Pulldown=%i, Interlace: %i\n"
433 "TFCTRflag=%i, FINTERPflag=%i\n",
434 v->level, v->frmrtq_postproc, v->bitrtq_postproc,
435 v->s.loop_filter, v->chromaformat, v->broadcast, v->interlace,
436 v->tfcntrflag, v->finterpflag);
438 v->psf = get_bits1(gb);
439 if (v->psf) { //PsF, 6.1.13
440 av_log(v->s.avctx, AV_LOG_ERROR, "Progressive Segmented Frame mode: not supported (yet)\n");
443 v->s.max_b_frames = v->s.avctx->max_b_frames = 7;
444 if (get_bits1(gb)) { //Display Info - decoding is not affected by it
446 av_log(v->s.avctx, AV_LOG_DEBUG, "Display extended info:\n");
447 w = get_bits(gb, 14) + 1;
448 h = get_bits(gb, 14) + 1;
449 av_log(v->s.avctx, AV_LOG_DEBUG, "Display dimensions: %ix%i\n", w, h);
451 ar = get_bits(gb, 4);
453 v->s.avctx->sample_aspect_ratio = ff_vc1_pixel_aspect[ar];
454 } else if (ar == 15) {
455 w = get_bits(gb, 8) + 1;
456 h = get_bits(gb, 8) + 1;
457 v->s.avctx->sample_aspect_ratio = (AVRational){w, h};
459 av_reduce(&v->s.avctx->sample_aspect_ratio.num,
460 &v->s.avctx->sample_aspect_ratio.den,
461 v->s.avctx->height * w,
462 v->s.avctx->width * h,
465 ff_set_sar(v->s.avctx, v->s.avctx->sample_aspect_ratio);
466 av_log(v->s.avctx, AV_LOG_DEBUG, "Aspect: %i:%i\n",
467 v->s.avctx->sample_aspect_ratio.num,
468 v->s.avctx->sample_aspect_ratio.den);
470 if (get_bits1(gb)) { //framerate stuff
472 v->s.avctx->framerate.den = 32;
473 v->s.avctx->framerate.num = get_bits(gb, 16) + 1;
476 nr = get_bits(gb, 8);
477 dr = get_bits(gb, 4);
478 if (nr > 0 && nr < 8 && dr > 0 && dr < 3) {
479 v->s.avctx->framerate.den = ff_vc1_fps_dr[dr - 1];
480 v->s.avctx->framerate.num = ff_vc1_fps_nr[nr - 1] * 1000;
483 if (v->broadcast) { // Pulldown may be present
484 v->s.avctx->ticks_per_frame = 2;
489 v->color_prim = get_bits(gb, 8);
490 v->transfer_char = get_bits(gb, 8);
491 v->matrix_coef = get_bits(gb, 8);
495 v->hrd_param_flag = get_bits1(gb);
496 if (v->hrd_param_flag) {
498 v->hrd_num_leaky_buckets = get_bits(gb, 5);
499 skip_bits(gb, 4); //bitrate exponent
500 skip_bits(gb, 4); //buffer size exponent
501 for (i = 0; i < v->hrd_num_leaky_buckets; i++) {
502 skip_bits(gb, 16); //hrd_rate[n]
503 skip_bits(gb, 16); //hrd_buffer[n]
509 int ff_vc1_decode_entry_point(AVCodecContext *avctx, VC1Context *v, GetBitContext *gb)
515 av_log(avctx, AV_LOG_DEBUG, "Entry point: %08X\n", show_bits_long(gb, 32));
516 v->broken_link = get_bits1(gb);
517 v->closed_entry = get_bits1(gb);
518 v->panscanflag = get_bits1(gb);
519 v->refdist_flag = get_bits1(gb);
520 v->s.loop_filter = get_bits1(gb);
521 if (v->s.avctx->skip_loop_filter >= AVDISCARD_ALL)
522 v->s.loop_filter = 0;
523 v->fastuvmc = get_bits1(gb);
524 v->extended_mv = get_bits1(gb);
525 v->dquant = get_bits(gb, 2);
526 v->vstransform = get_bits1(gb);
527 v->overlap = get_bits1(gb);
528 v->quantizer_mode = get_bits(gb, 2);
530 if (v->hrd_param_flag) {
531 for (i = 0; i < v->hrd_num_leaky_buckets; i++) {
532 skip_bits(gb, 8); //hrd_full[n]
537 w = (get_bits(gb, 12)+1)<<1;
538 h = (get_bits(gb, 12)+1)<<1;
540 w = v->max_coded_width;
541 h = v->max_coded_height;
543 if ((ret = ff_set_dimensions(avctx, w, h)) < 0) {
544 av_log(avctx, AV_LOG_ERROR, "Failed to set dimensions %d %d\n", w, h);
549 v->extended_dmv = get_bits1(gb);
550 if ((v->range_mapy_flag = get_bits1(gb))) {
551 av_log(avctx, AV_LOG_ERROR, "Luma scaling is not supported, expect wrong picture\n");
552 v->range_mapy = get_bits(gb, 3);
554 if ((v->range_mapuv_flag = get_bits1(gb))) {
555 av_log(avctx, AV_LOG_ERROR, "Chroma scaling is not supported, expect wrong picture\n");
556 v->range_mapuv = get_bits(gb, 3);
559 av_log(avctx, AV_LOG_DEBUG, "Entry point info:\n"
560 "BrokenLink=%i, ClosedEntry=%i, PanscanFlag=%i\n"
561 "RefDist=%i, Postproc=%i, FastUVMC=%i, ExtMV=%i\n"
562 "DQuant=%i, VSTransform=%i, Overlap=%i, Qmode=%i\n",
563 v->broken_link, v->closed_entry, v->panscanflag, v->refdist_flag, v->s.loop_filter,
564 v->fastuvmc, v->extended_mv, v->dquant, v->vstransform, v->overlap, v->quantizer_mode);
569 /* fill lookup tables for intensity compensation */
570 #define INIT_LUT(lumscale, lumshift, luty, lutuv, chain) do { \
571 int scale, shift, i; \
574 shift = (255 - lumshift * 2) * 64; \
578 scale = lumscale + 32; \
580 shift = (lumshift - 64) * 64; \
582 shift = lumshift << 6; \
584 for (i = 0; i < 256; i++) { \
585 int iy = chain ? luty[i] : i; \
586 int iu = chain ? lutuv[i] : i; \
587 luty[i] = av_clip_uint8((scale * iy + shift + 32) >> 6); \
588 lutuv[i] = av_clip_uint8((scale * (iu - 128) + 128*64 + 32) >> 6);\
592 static void rotate_luts(VC1Context *v)
594 #define ROTATE(DEF, L, N, C, A) do { \
595 if (v->s.pict_type == AV_PICTURE_TYPE_BI || v->s.pict_type == AV_PICTURE_TYPE_B) { \
599 memcpy(&tmp, L , sizeof(tmp)); \
600 memcpy(L , N , sizeof(tmp)); \
601 memcpy(N , &tmp, sizeof(tmp)); \
606 ROTATE(int tmp, &v->last_use_ic, &v->next_use_ic, v->curr_use_ic, &v->aux_use_ic);
607 ROTATE(uint8_t tmp[2][256], v->last_luty, v->next_luty, v->curr_luty, v->aux_luty);
608 ROTATE(uint8_t tmp[2][256], v->last_lutuv, v->next_lutuv, v->curr_lutuv, v->aux_lutuv);
610 INIT_LUT(32, 0, v->curr_luty[0], v->curr_lutuv[0], 0);
611 INIT_LUT(32, 0, v->curr_luty[1], v->curr_lutuv[1], 0);
615 static int read_bfraction(VC1Context *v, GetBitContext* gb) {
616 int bfraction_lut_index = get_vlc2(gb, ff_vc1_bfraction_vlc.table, VC1_BFRACTION_VLC_BITS, 1);
618 if (bfraction_lut_index == 21 || bfraction_lut_index < 0) {
619 av_log(v->s.avctx, AV_LOG_ERROR, "bfraction invalid\n");
620 return AVERROR_INVALIDDATA;
622 v->bfraction_lut_index = bfraction_lut_index;
623 v->bfraction = ff_vc1_bfraction_lut[v->bfraction_lut_index];
627 int ff_vc1_parse_frame_header(VC1Context *v, GetBitContext* gb)
629 int pqindex, lowquant, status;
632 v->fcm = PROGRESSIVE;
634 v->interpfrm = get_bits1(gb);
635 if (!v->s.avctx->codec)
637 if (v->s.avctx->codec_id == AV_CODEC_ID_MSS2)
640 v->multires = get_bits(gb, 2) == 1;
642 skip_bits(gb, 2); //framecnt unused
645 v->rangeredfrm = get_bits1(gb);
647 v->s.pict_type = AV_PICTURE_TYPE_P;
649 if (v->s.avctx->max_b_frames && !get_bits1(gb)) {
650 v->s.pict_type = AV_PICTURE_TYPE_B;
652 v->s.pict_type = AV_PICTURE_TYPE_I;
656 if (v->s.pict_type == AV_PICTURE_TYPE_B) {
657 if (read_bfraction(v, gb) < 0)
658 return AVERROR_INVALIDDATA;
659 if (v->bfraction == 0) {
660 v->s.pict_type = AV_PICTURE_TYPE_BI;
663 if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI)
664 skip_bits(gb, 7); // skip buffer fullness
670 if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI)
672 if (v->s.pict_type == AV_PICTURE_TYPE_P)
675 /* Quantizer stuff */
676 pqindex = get_bits(gb, 5);
679 if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
680 v->pq = ff_vc1_pquant_table[0][pqindex];
682 v->pq = ff_vc1_pquant_table[1][pqindex];
683 v->pqindex = pqindex;
685 v->halfpq = get_bits1(gb);
688 switch (v->quantizer_mode) {
689 case QUANT_FRAME_IMPLICIT:
690 v->pquantizer = pqindex < 9;
692 case QUANT_NON_UNIFORM:
695 case QUANT_FRAME_EXPLICIT:
696 v->pquantizer = get_bits1(gb);
703 if (v->extended_mv == 1)
704 v->mvrange = get_unary(gb, 0, 3);
705 v->k_x = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13
706 v->k_y = v->mvrange + 8; //k_y can be 8 9 10 11
707 v->range_x = 1 << (v->k_x - 1);
708 v->range_y = 1 << (v->k_y - 1);
709 if (v->multires && v->s.pict_type != AV_PICTURE_TYPE_B)
710 v->respic = get_bits(gb, 2);
712 if (v->res_x8 && (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI)) {
713 v->x8_type = get_bits1(gb);
716 ff_dlog(v->s.avctx, "%c Frame: QP=[%i]%i (+%i/2) %i\n",
717 (v->s.pict_type == AV_PICTURE_TYPE_P) ? 'P' : ((v->s.pict_type == AV_PICTURE_TYPE_I) ? 'I' : 'B'),
718 pqindex, v->pq, v->halfpq, v->rangeredfrm);
720 if (v->first_pic_header_flag)
723 switch (v->s.pict_type) {
724 case AV_PICTURE_TYPE_P:
725 v->tt_index = (v->pq > 4) + (v->pq > 12);
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_INTENSITY_COMP) {
740 v->s.quarter_sample = (v->mv_mode2 != MV_PMODE_1MV_HPEL &&
741 v->mv_mode2 != MV_PMODE_1MV_HPEL_BILIN);
742 v->s.mspel = (v->mv_mode2 != MV_PMODE_1MV_HPEL_BILIN);
744 v->s.quarter_sample = (v->mv_mode != MV_PMODE_1MV_HPEL &&
745 v->mv_mode != MV_PMODE_1MV_HPEL_BILIN);
746 v->s.mspel = (v->mv_mode != MV_PMODE_1MV_HPEL_BILIN);
749 if ((v->mv_mode == MV_PMODE_INTENSITY_COMP &&
750 v->mv_mode2 == MV_PMODE_MIXED_MV) ||
751 v->mv_mode == MV_PMODE_MIXED_MV) {
752 status = bitplane_decoding(v->mv_type_mb_plane, &v->mv_type_is_raw, v);
755 av_log(v->s.avctx, AV_LOG_DEBUG, "MB MV Type plane encoding: "
756 "Imode: %i, Invert: %i\n", status>>1, status&1);
758 v->mv_type_is_raw = 0;
759 memset(v->mv_type_mb_plane, 0, v->s.mb_stride * v->s.mb_height);
761 status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
764 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
765 "Imode: %i, Invert: %i\n", status>>1, status&1);
767 /* Hopefully this is correct for P-frames */
768 v->s.mv_table_index = get_bits(gb, 2); //but using ff_vc1_ tables
769 v->cbptab = get_bits(gb, 2);
770 v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[v->cbptab];
773 av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
774 vop_dquant_decoding(v);
777 if (v->vstransform) {
778 v->ttmbf = get_bits1(gb);
780 v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
782 v->ttfrm = 0; //FIXME Is that so ?
788 case AV_PICTURE_TYPE_B:
789 v->tt_index = (v->pq > 4) + (v->pq > 12);
791 v->mv_mode = get_bits1(gb) ? MV_PMODE_1MV : MV_PMODE_1MV_HPEL_BILIN;
792 v->qs_last = v->s.quarter_sample;
793 v->s.quarter_sample = (v->mv_mode == MV_PMODE_1MV);
794 v->s.mspel = v->s.quarter_sample;
796 status = bitplane_decoding(v->direct_mb_plane, &v->dmb_is_raw, v);
799 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Direct Type plane encoding: "
800 "Imode: %i, Invert: %i\n", status>>1, status&1);
801 status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
804 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
805 "Imode: %i, Invert: %i\n", status>>1, status&1);
807 v->s.mv_table_index = get_bits(gb, 2);
808 v->cbptab = get_bits(gb, 2);
809 v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[v->cbptab];
812 av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
813 vop_dquant_decoding(v);
816 if (v->vstransform) {
817 v->ttmbf = get_bits1(gb);
819 v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
831 v->c_ac_table_index = decode012(gb);
832 if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI) {
833 v->y_ac_table_index = decode012(gb);
836 v->s.dc_table_index = get_bits1(gb);
839 if (v->s.pict_type == AV_PICTURE_TYPE_BI) {
840 v->s.pict_type = AV_PICTURE_TYPE_B;
846 int ff_vc1_parse_frame_header_adv(VC1Context *v, GetBitContext* gb)
848 int pqindex, lowquant;
853 v->p_frame_skipped = 0;
854 if (v->second_field) {
855 if (v->fcm != ILACE_FIELD || v->field_mode!=1)
858 v->s.pict_type = (v->fptype & 1) ? AV_PICTURE_TYPE_BI : AV_PICTURE_TYPE_B;
860 v->s.pict_type = (v->fptype & 1) ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_I;
861 v->s.current_picture_ptr->f->pict_type = v->s.pict_type;
862 if (!v->pic_header_flag)
863 goto parse_common_info;
870 if (fcm == ILACE_FIELD)
876 if (!v->first_pic_header_flag && v->field_mode != field_mode)
877 return AVERROR_INVALIDDATA;
878 v->field_mode = field_mode;
881 av_assert0( v->s.mb_height == v->s.height + 15 >> 4
882 || v->s.mb_height == FFALIGN(v->s.height + 15 >> 4, 2));
884 v->s.mb_height = FFALIGN(v->s.height + 15 >> 4, 2);
885 v->fptype = get_bits(gb, 3);
886 if (v->fptype & 4) // B-picture
887 v->s.pict_type = (v->fptype & 2) ? AV_PICTURE_TYPE_BI : AV_PICTURE_TYPE_B;
889 v->s.pict_type = (v->fptype & 2) ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_I;
891 v->s.mb_height = v->s.height + 15 >> 4;
892 switch (get_unary(gb, 0, 4)) {
894 v->s.pict_type = AV_PICTURE_TYPE_P;
897 v->s.pict_type = AV_PICTURE_TYPE_B;
900 v->s.pict_type = AV_PICTURE_TYPE_I;
903 v->s.pict_type = AV_PICTURE_TYPE_BI;
906 v->s.pict_type = AV_PICTURE_TYPE_P; // skipped pic
907 v->p_frame_skipped = 1;
914 if (!v->interlace || v->psf) {
915 v->rptfrm = get_bits(gb, 2);
917 v->tff = get_bits1(gb);
918 v->rff = get_bits1(gb);
923 if (v->panscanflag) {
924 avpriv_report_missing_feature(v->s.avctx, "Pan-scan");
927 if (v->p_frame_skipped) {
930 v->rnd = get_bits1(gb);
932 v->uvsamp = get_bits1(gb);
933 if(!ff_vc1_bfraction_vlc.table)
934 return 0; //parsing only, vlc tables havnt been allocated
936 if (!v->refdist_flag)
938 else if ((v->s.pict_type != AV_PICTURE_TYPE_B) && (v->s.pict_type != AV_PICTURE_TYPE_BI)) {
939 v->refdist = get_bits(gb, 2);
941 v->refdist += get_unary(gb, 0, 16);
943 if ((v->s.pict_type == AV_PICTURE_TYPE_B) || (v->s.pict_type == AV_PICTURE_TYPE_BI)) {
944 if (read_bfraction(v, gb) < 0)
945 return AVERROR_INVALIDDATA;
946 v->frfd = (v->bfraction * v->refdist) >> 8;
947 v->brfd = v->refdist - v->frfd - 1;
951 goto parse_common_info;
953 if (v->fcm == PROGRESSIVE) {
955 v->interpfrm = get_bits1(gb);
956 if (v->s.pict_type == AV_PICTURE_TYPE_B) {
957 if (read_bfraction(v, gb) < 0)
958 return AVERROR_INVALIDDATA;
959 if (v->bfraction == 0) {
960 v->s.pict_type = AV_PICTURE_TYPE_BI; /* XXX: should not happen here */
967 v->cur_field_type = !(v->tff ^ v->second_field);
968 pqindex = get_bits(gb, 5);
971 if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
972 v->pq = ff_vc1_pquant_table[0][pqindex];
974 v->pq = ff_vc1_pquant_table[1][pqindex];
975 v->pqindex = pqindex;
977 v->halfpq = get_bits1(gb);
980 switch (v->quantizer_mode) {
981 case QUANT_FRAME_IMPLICIT:
982 v->pquantizer = pqindex < 9;
984 case QUANT_NON_UNIFORM:
987 case QUANT_FRAME_EXPLICIT:
988 v->pquantizer = get_bits1(gb);
996 v->postproc = get_bits(gb, 2);
1001 if (v->first_pic_header_flag)
1004 switch (v->s.pict_type) {
1005 case AV_PICTURE_TYPE_I:
1006 case AV_PICTURE_TYPE_BI:
1007 if (v->fcm == ILACE_FRAME) { //interlace frame picture
1008 status = bitplane_decoding(v->fieldtx_plane, &v->fieldtx_is_raw, v);
1011 av_log(v->s.avctx, AV_LOG_DEBUG, "FIELDTX plane encoding: "
1012 "Imode: %i, Invert: %i\n", status>>1, status&1);
1014 status = bitplane_decoding(v->acpred_plane, &v->acpred_is_raw, v);
1017 av_log(v->s.avctx, AV_LOG_DEBUG, "ACPRED plane encoding: "
1018 "Imode: %i, Invert: %i\n", status>>1, status&1);
1019 v->condover = CONDOVER_NONE;
1020 if (v->overlap && v->pq <= 8) {
1021 v->condover = decode012(gb);
1022 if (v->condover == CONDOVER_SELECT) {
1023 status = bitplane_decoding(v->over_flags_plane, &v->overflg_is_raw, v);
1026 av_log(v->s.avctx, AV_LOG_DEBUG, "CONDOVER plane encoding: "
1027 "Imode: %i, Invert: %i\n", status>>1, status&1);
1031 case AV_PICTURE_TYPE_P:
1032 if (v->field_mode) {
1033 v->numref = get_bits1(gb);
1035 v->reffield = get_bits1(gb);
1036 v->ref_field_type[0] = v->reffield ^ !v->cur_field_type;
1040 v->mvrange = get_unary(gb, 0, 3);
1044 if (v->extended_dmv)
1045 v->dmvrange = get_unary(gb, 0, 3);
1048 if (v->fcm == ILACE_FRAME) { // interlaced frame picture
1049 v->fourmvswitch = get_bits1(gb);
1050 v->intcomp = get_bits1(gb);
1052 v->lumscale = get_bits(gb, 6);
1053 v->lumshift = get_bits(gb, 6);
1054 INIT_LUT(v->lumscale, v->lumshift, v->last_luty[0], v->last_lutuv[0], 1);
1055 INIT_LUT(v->lumscale, v->lumshift, v->last_luty[1], v->last_lutuv[1], 1);
1058 status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
1061 av_log(v->s.avctx, AV_LOG_DEBUG, "SKIPMB plane encoding: "
1062 "Imode: %i, Invert: %i\n", status>>1, status&1);
1063 v->mbmodetab = get_bits(gb, 2);
1064 if (v->fourmvswitch)
1065 v->mbmode_vlc = &ff_vc1_intfr_4mv_mbmode_vlc[v->mbmodetab];
1067 v->mbmode_vlc = &ff_vc1_intfr_non4mv_mbmode_vlc[v->mbmodetab];
1068 v->imvtab = get_bits(gb, 2);
1069 v->imv_vlc = &ff_vc1_1ref_mvdata_vlc[v->imvtab];
1070 // interlaced p-picture cbpcy range is [1, 63]
1071 v->icbptab = get_bits(gb, 3);
1072 v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[v->icbptab];
1073 v->twomvbptab = get_bits(gb, 2);
1074 v->twomvbp_vlc = &ff_vc1_2mv_block_pattern_vlc[v->twomvbptab];
1075 if (v->fourmvswitch) {
1076 v->fourmvbptab = get_bits(gb, 2);
1077 v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[v->fourmvbptab];
1081 v->k_x = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13
1082 v->k_y = v->mvrange + 8; //k_y can be 8 9 10 11
1083 v->range_x = 1 << (v->k_x - 1);
1084 v->range_y = 1 << (v->k_y - 1);
1086 v->tt_index = (v->pq > 4) + (v->pq > 12);
1087 if (v->fcm != ILACE_FRAME) {
1089 mvmode = get_unary(gb, 1, 4);
1090 lowquant = (v->pq > 12) ? 0 : 1;
1091 v->mv_mode = ff_vc1_mv_pmode_table[lowquant][mvmode];
1092 if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {
1094 mvmode2 = get_unary(gb, 1, 3);
1095 v->mv_mode2 = ff_vc1_mv_pmode_table2[lowquant][mvmode2];
1096 if (v->field_mode) {
1097 v->intcompfield = decode210(gb) ^ 3;
1099 v->intcompfield = 3;
1101 v->lumscale2 = v->lumscale = 32;
1102 v->lumshift2 = v->lumshift = 0;
1103 if (v->intcompfield & 1) {
1104 v->lumscale = get_bits(gb, 6);
1105 v->lumshift = get_bits(gb, 6);
1107 if ((v->intcompfield & 2) && v->field_mode) {
1108 v->lumscale2 = get_bits(gb, 6);
1109 v->lumshift2 = get_bits(gb, 6);
1110 } else if(!v->field_mode) {
1111 v->lumscale2 = v->lumscale;
1112 v->lumshift2 = v->lumshift;
1114 if (v->field_mode && v->second_field) {
1115 if (v->cur_field_type) {
1116 INIT_LUT(v->lumscale , v->lumshift , v->curr_luty[v->cur_field_type^1], v->curr_lutuv[v->cur_field_type^1], 0);
1117 INIT_LUT(v->lumscale2, v->lumshift2, v->last_luty[v->cur_field_type ], v->last_lutuv[v->cur_field_type ], 1);
1119 INIT_LUT(v->lumscale2, v->lumshift2, v->curr_luty[v->cur_field_type^1], v->curr_lutuv[v->cur_field_type^1], 0);
1120 INIT_LUT(v->lumscale , v->lumshift , v->last_luty[v->cur_field_type ], v->last_lutuv[v->cur_field_type ], 1);
1122 v->next_use_ic = *v->curr_use_ic = 1;
1124 INIT_LUT(v->lumscale , v->lumshift , v->last_luty[0], v->last_lutuv[0], 1);
1125 INIT_LUT(v->lumscale2, v->lumshift2, v->last_luty[1], v->last_lutuv[1], 1);
1129 v->qs_last = v->s.quarter_sample;
1130 if (v->mv_mode == MV_PMODE_INTENSITY_COMP) {
1131 v->s.quarter_sample = (v->mv_mode2 != MV_PMODE_1MV_HPEL &&
1132 v->mv_mode2 != MV_PMODE_1MV_HPEL_BILIN);
1133 v->s.mspel = (v->mv_mode2 != MV_PMODE_1MV_HPEL_BILIN);
1135 v->s.quarter_sample = (v->mv_mode != MV_PMODE_1MV_HPEL &&
1136 v->mv_mode != MV_PMODE_1MV_HPEL_BILIN);
1137 v->s.mspel = (v->mv_mode != MV_PMODE_1MV_HPEL_BILIN);
1140 if (v->fcm == PROGRESSIVE) { // progressive
1141 if ((v->mv_mode == MV_PMODE_INTENSITY_COMP &&
1142 v->mv_mode2 == MV_PMODE_MIXED_MV)
1143 || v->mv_mode == MV_PMODE_MIXED_MV) {
1144 status = bitplane_decoding(v->mv_type_mb_plane, &v->mv_type_is_raw, v);
1147 av_log(v->s.avctx, AV_LOG_DEBUG, "MB MV Type plane encoding: "
1148 "Imode: %i, Invert: %i\n", status>>1, status&1);
1150 v->mv_type_is_raw = 0;
1151 memset(v->mv_type_mb_plane, 0, v->s.mb_stride * v->s.mb_height);
1153 status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
1156 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
1157 "Imode: %i, Invert: %i\n", status>>1, status&1);
1159 /* Hopefully this is correct for P-frames */
1160 v->s.mv_table_index = get_bits(gb, 2); //but using ff_vc1_ tables
1161 v->cbptab = get_bits(gb, 2);
1162 v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[v->cbptab];
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 v->mbmodetab = get_bits(gb, 3);
1169 v->imvtab = get_bits(gb, 2 + v->numref);
1171 v->imv_vlc = &ff_vc1_1ref_mvdata_vlc[v->imvtab];
1173 v->imv_vlc = &ff_vc1_2ref_mvdata_vlc[v->imvtab];
1174 v->icbptab = get_bits(gb, 3);
1175 v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[v->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 v->fourmvbptab = get_bits(gb, 2);
1179 v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[v->fourmvbptab];
1180 v->mbmode_vlc = &ff_vc1_if_mmv_mbmode_vlc[v->mbmodetab];
1182 v->mbmode_vlc = &ff_vc1_if_1mv_mbmode_vlc[v->mbmodetab];
1186 av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
1187 vop_dquant_decoding(v);
1190 if (v->vstransform) {
1191 v->ttmbf = get_bits1(gb);
1193 v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
1195 v->ttfrm = 0; //FIXME Is that so ?
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);
1218 v->tt_index = (v->pq > 4) + (v->pq > 12);
1220 if (v->field_mode) {
1222 av_log(v->s.avctx, AV_LOG_DEBUG, "B Fields\n");
1223 if (v->extended_dmv)
1224 v->dmvrange = get_unary(gb, 0, 3);
1225 mvmode = get_unary(gb, 1, 3);
1226 lowquant = (v->pq > 12) ? 0 : 1;
1227 v->mv_mode = ff_vc1_mv_pmode_table2[lowquant][mvmode];
1228 v->qs_last = v->s.quarter_sample;
1229 v->s.quarter_sample = (v->mv_mode == MV_PMODE_1MV || v->mv_mode == MV_PMODE_MIXED_MV);
1230 v->s.mspel = (v->mv_mode != MV_PMODE_1MV_HPEL_BILIN);
1231 status = bitplane_decoding(v->forward_mb_plane, &v->fmb_is_raw, v);
1234 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Forward Type plane encoding: "
1235 "Imode: %i, Invert: %i\n", status>>1, status&1);
1236 v->mbmodetab = get_bits(gb, 3);
1237 if (v->mv_mode == MV_PMODE_MIXED_MV)
1238 v->mbmode_vlc = &ff_vc1_if_mmv_mbmode_vlc[v->mbmodetab];
1240 v->mbmode_vlc = &ff_vc1_if_1mv_mbmode_vlc[v->mbmodetab];
1241 v->imvtab = get_bits(gb, 3);
1242 v->imv_vlc = &ff_vc1_2ref_mvdata_vlc[v->imvtab];
1243 v->icbptab = get_bits(gb, 3);
1244 v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[v->icbptab];
1245 if (v->mv_mode == MV_PMODE_MIXED_MV) {
1246 v->fourmvbptab = get_bits(gb, 2);
1247 v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[v->fourmvbptab];
1249 v->numref = 1; // interlaced field B pictures are always 2-ref
1250 } else if (v->fcm == ILACE_FRAME) {
1251 if (v->extended_dmv)
1252 v->dmvrange = get_unary(gb, 0, 3);
1253 if (get_bits1(gb)) /* intcomp - present but shall always be 0 */
1254 av_log(v->s.avctx, AV_LOG_WARNING, "Intensity compensation set for B picture\n");
1256 v->mv_mode = MV_PMODE_1MV;
1257 v->fourmvswitch = 0;
1258 v->qs_last = v->s.quarter_sample;
1259 v->s.quarter_sample = 1;
1261 status = bitplane_decoding(v->direct_mb_plane, &v->dmb_is_raw, v);
1264 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Direct Type plane encoding: "
1265 "Imode: %i, Invert: %i\n", status>>1, status&1);
1266 status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
1269 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
1270 "Imode: %i, Invert: %i\n", status>>1, status&1);
1271 v->mbmodetab = get_bits(gb, 2);
1272 v->mbmode_vlc = &ff_vc1_intfr_non4mv_mbmode_vlc[v->mbmodetab];
1273 v->imvtab = get_bits(gb, 2);
1274 v->imv_vlc = &ff_vc1_1ref_mvdata_vlc[v->imvtab];
1275 // interlaced p/b-picture cbpcy range is [1, 63]
1276 v->icbptab = get_bits(gb, 3);
1277 v->cbpcy_vlc = &ff_vc1_icbpcy_vlc[v->icbptab];
1278 v->twomvbptab = get_bits(gb, 2);
1279 v->twomvbp_vlc = &ff_vc1_2mv_block_pattern_vlc[v->twomvbptab];
1280 v->fourmvbptab = get_bits(gb, 2);
1281 v->fourmvbp_vlc = &ff_vc1_4mv_block_pattern_vlc[v->fourmvbptab];
1283 v->mv_mode = get_bits1(gb) ? MV_PMODE_1MV : MV_PMODE_1MV_HPEL_BILIN;
1284 v->qs_last = v->s.quarter_sample;
1285 v->s.quarter_sample = (v->mv_mode == MV_PMODE_1MV);
1286 v->s.mspel = v->s.quarter_sample;
1287 status = bitplane_decoding(v->direct_mb_plane, &v->dmb_is_raw, v);
1290 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Direct Type plane encoding: "
1291 "Imode: %i, Invert: %i\n", status>>1, status&1);
1292 status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
1295 av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
1296 "Imode: %i, Invert: %i\n", status>>1, status&1);
1297 v->s.mv_table_index = get_bits(gb, 2);
1298 v->cbptab = get_bits(gb, 2);
1299 v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[v->cbptab];
1303 av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
1304 vop_dquant_decoding(v);
1307 if (v->vstransform) {
1308 v->ttmbf = get_bits1(gb);
1310 v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
1320 if (v->fcm != PROGRESSIVE && !v->s.quarter_sample) {
1326 v->c_ac_table_index = decode012(gb);
1327 if (v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI) {
1328 v->y_ac_table_index = decode012(gb);
1331 v->s.dc_table_index = get_bits1(gb);
1332 if ((v->s.pict_type == AV_PICTURE_TYPE_I || v->s.pict_type == AV_PICTURE_TYPE_BI)
1334 av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
1335 vop_dquant_decoding(v);
1338 v->bi_type = (v->s.pict_type == AV_PICTURE_TYPE_BI);
1340 v->s.pict_type = AV_PICTURE_TYPE_B;
1345 static const uint32_t vc1_ac_tables[AC_MODES][186][2] = {
1347 { 0x0001, 2}, { 0x0005, 3}, { 0x000D, 4}, { 0x0012, 5}, { 0x000E, 6}, { 0x0015, 7},
1348 { 0x0013, 8}, { 0x003F, 8}, { 0x004B, 9}, { 0x011F, 9}, { 0x00B8, 10}, { 0x03E3, 10},
1349 { 0x0172, 11}, { 0x024D, 12}, { 0x03DA, 12}, { 0x02DD, 13}, { 0x1F55, 13}, { 0x05B9, 14},
1350 { 0x3EAE, 14}, { 0x0000, 4}, { 0x0010, 5}, { 0x0008, 7}, { 0x0020, 8}, { 0x0029, 9},
1351 { 0x01F4, 9}, { 0x0233, 10}, { 0x01E0, 11}, { 0x012A, 12}, { 0x03DD, 12}, { 0x050A, 13},
1352 { 0x1F29, 13}, { 0x0A42, 14}, { 0x1272, 15}, { 0x1737, 15}, { 0x0003, 5}, { 0x0011, 7},
1353 { 0x00C4, 8}, { 0x004B, 10}, { 0x00B4, 11}, { 0x07D4, 11}, { 0x0345, 12}, { 0x02D7, 13},
1354 { 0x07BF, 13}, { 0x0938, 14}, { 0x0BBB, 14}, { 0x095E, 15}, { 0x0013, 5}, { 0x0078, 7},
1355 { 0x0069, 9}, { 0x0232, 10}, { 0x0461, 11}, { 0x03EC, 12}, { 0x0520, 13}, { 0x1F2A, 13},
1356 { 0x3E50, 14}, { 0x3E51, 14}, { 0x1486, 15}, { 0x000C, 6}, { 0x0024, 9}, { 0x0094, 11},
1357 { 0x08C0, 12}, { 0x0F09, 14}, { 0x1EF0, 15}, { 0x003D, 6}, { 0x0053, 9}, { 0x01A0, 11},
1358 { 0x02D6, 13}, { 0x0F08, 14}, { 0x0013, 7}, { 0x007C, 9}, { 0x07C1, 11}, { 0x04AC, 14},
1359 { 0x001B, 7}, { 0x00A0, 10}, { 0x0344, 12}, { 0x0F79, 14}, { 0x0079, 7}, { 0x03E1, 10},
1360 { 0x02D4, 13}, { 0x2306, 14}, { 0x0021, 8}, { 0x023C, 10}, { 0x0FAE, 12}, { 0x23DE, 14},
1361 { 0x0035, 8}, { 0x0175, 11}, { 0x07B3, 13}, { 0x00C5, 8}, { 0x0174, 11}, { 0x0785, 13},
1362 { 0x0048, 9}, { 0x01A3, 11}, { 0x049E, 13}, { 0x002C, 9}, { 0x00FA, 10}, { 0x07D6, 11},
1363 { 0x0092, 10}, { 0x05CC, 13}, { 0x1EF1, 15}, { 0x00A3, 10}, { 0x03ED, 12}, { 0x093E, 14},
1364 { 0x01E2, 11}, { 0x1273, 15}, { 0x07C4, 11}, { 0x1487, 15}, { 0x0291, 12}, { 0x0293, 12},
1365 { 0x0F8A, 12}, { 0x0509, 13}, { 0x0508, 13}, { 0x078D, 13}, { 0x07BE, 13}, { 0x078C, 13},
1366 { 0x04AE, 14}, { 0x0BBA, 14}, { 0x2307, 14}, { 0x0B9A, 14}, { 0x1736, 15}, { 0x000E, 4},
1367 { 0x0045, 7}, { 0x01F3, 9}, { 0x047A, 11}, { 0x05DC, 13}, { 0x23DF, 14}, { 0x0019, 5},
1368 { 0x0028, 9}, { 0x0176, 11}, { 0x049D, 13}, { 0x23DD, 14}, { 0x0030, 6}, { 0x00A2, 10},
1369 { 0x02EF, 12}, { 0x05B8, 14}, { 0x003F, 6}, { 0x00A5, 10}, { 0x03DB, 12}, { 0x093F, 14},
1370 { 0x0044, 7}, { 0x07CB, 11}, { 0x095F, 15}, { 0x0063, 7}, { 0x03C3, 12}, { 0x0015, 8},
1371 { 0x08F6, 12}, { 0x0017, 8}, { 0x0498, 13}, { 0x002C, 8}, { 0x07B2, 13}, { 0x002F, 8},
1372 { 0x1F54, 13}, { 0x008D, 8}, { 0x07BD, 13}, { 0x008E, 8}, { 0x1182, 13}, { 0x00FB, 8},
1373 { 0x050B, 13}, { 0x002D, 8}, { 0x07C0, 11}, { 0x0079, 9}, { 0x1F5F, 13}, { 0x007A, 9},
1374 { 0x1F56, 13}, { 0x0231, 10}, { 0x03E4, 10}, { 0x01A1, 11}, { 0x0143, 11}, { 0x01F7, 11},
1375 { 0x016F, 12}, { 0x0292, 12}, { 0x02E7, 12}, { 0x016C, 12}, { 0x016D, 12}, { 0x03DC, 12},
1376 { 0x0F8B, 12}, { 0x0499, 13}, { 0x03D8, 12}, { 0x078E, 13}, { 0x02D5, 13}, { 0x1F5E, 13},
1377 { 0x1F2B, 13}, { 0x078F, 13}, { 0x04AD, 14}, { 0x3EAF, 14}, { 0x23DC, 14}, { 0x004A, 9}
1380 { 0x0000, 3}, { 0x0003, 4}, { 0x000B, 5}, { 0x0014, 6}, { 0x003F, 6}, { 0x005D, 7},
1381 { 0x00A2, 8}, { 0x00AC, 9}, { 0x016E, 9}, { 0x020A, 10}, { 0x02E2, 10}, { 0x0432, 11},
1382 { 0x05C9, 11}, { 0x0827, 12}, { 0x0B54, 12}, { 0x04E6, 13}, { 0x105F, 13}, { 0x172A, 13},
1383 { 0x20B2, 14}, { 0x2D4E, 14}, { 0x39F0, 14}, { 0x4175, 15}, { 0x5A9E, 15}, { 0x0004, 4},
1384 { 0x001E, 5}, { 0x0042, 7}, { 0x00B6, 8}, { 0x0173, 9}, { 0x0395, 10}, { 0x072E, 11},
1385 { 0x0B94, 12}, { 0x16A4, 13}, { 0x20B3, 14}, { 0x2E45, 14}, { 0x0005, 5}, { 0x0040, 7},
1386 { 0x0049, 9}, { 0x028F, 10}, { 0x05CB, 11}, { 0x048A, 13}, { 0x09DD, 14}, { 0x73E2, 15},
1387 { 0x0018, 5}, { 0x0025, 8}, { 0x008A, 10}, { 0x051B, 11}, { 0x0E5F, 12}, { 0x09C9, 14},
1388 { 0x139C, 15}, { 0x0029, 6}, { 0x004F, 9}, { 0x0412, 11}, { 0x048D, 13}, { 0x2E41, 14},
1389 { 0x0038, 6}, { 0x010E, 9}, { 0x05A8, 11}, { 0x105C, 13}, { 0x39F2, 14}, { 0x0058, 7},
1390 { 0x021F, 10}, { 0x0E7E, 12}, { 0x39FF, 14}, { 0x0023, 8}, { 0x02E3, 10}, { 0x04E5, 13},
1391 { 0x2E40, 14}, { 0x00A1, 8}, { 0x05BE, 11}, { 0x09C8, 14}, { 0x0083, 8}, { 0x013A, 11},
1392 { 0x1721, 13}, { 0x0044, 9}, { 0x0276, 12}, { 0x39F6, 14}, { 0x008B, 10}, { 0x04EF, 13},
1393 { 0x5A9B, 15}, { 0x0208, 10}, { 0x1CFE, 13}, { 0x0399, 10}, { 0x1CB4, 13}, { 0x039E, 10},
1394 { 0x39F3, 14}, { 0x05AB, 11}, { 0x73E3, 15}, { 0x0737, 11}, { 0x5A9F, 15}, { 0x082D, 12},
1395 { 0x0E69, 12}, { 0x0E68, 12}, { 0x0433, 11}, { 0x0B7B, 12}, { 0x2DF8, 14}, { 0x2E56, 14},
1396 { 0x2E57, 14}, { 0x39F7, 14}, { 0x51A5, 15}, { 0x0003, 3}, { 0x002A, 6}, { 0x00E4, 8},
1397 { 0x028E, 10}, { 0x0735, 11}, { 0x1058, 13}, { 0x1CFA, 13}, { 0x2DF9, 14}, { 0x4174, 15},
1398 { 0x0009, 4}, { 0x0054, 8}, { 0x0398, 10}, { 0x048B, 13}, { 0x139D, 15}, { 0x000D, 4},
1399 { 0x00AD, 9}, { 0x0826, 12}, { 0x2D4C, 14}, { 0x0011, 5}, { 0x016B, 9}, { 0x0B7F, 12},
1400 { 0x51A4, 15}, { 0x0019, 5}, { 0x021B, 10}, { 0x16FD, 13}, { 0x001D, 5}, { 0x0394, 10},
1401 { 0x28D3, 14}, { 0x002B, 6}, { 0x05BC, 11}, { 0x5A9A, 15}, { 0x002F, 6}, { 0x0247, 12},
1402 { 0x0010, 7}, { 0x0A35, 12}, { 0x003E, 6}, { 0x0B7A, 12}, { 0x0059, 7}, { 0x105E, 13},
1403 { 0x0026, 8}, { 0x09CF, 14}, { 0x0055, 8}, { 0x1CB5, 13}, { 0x0057, 8}, { 0x0E5B, 12},
1404 { 0x00A0, 8}, { 0x1468, 13}, { 0x0170, 9}, { 0x0090, 10}, { 0x01CE, 9}, { 0x021A, 10},
1405 { 0x0218, 10}, { 0x0168, 9}, { 0x021E, 10}, { 0x0244, 12}, { 0x0736, 11}, { 0x0138, 11},
1406 { 0x0519, 11}, { 0x0E5E, 12}, { 0x072C, 11}, { 0x0B55, 12}, { 0x09DC, 14}, { 0x20BB, 14},
1407 { 0x048C, 13}, { 0x1723, 13}, { 0x2E44, 14}, { 0x16A5, 13}, { 0x0518, 11}, { 0x39FE, 14},
1411 { 0x0001, 2}, { 0x0006, 3}, { 0x000F, 4}, { 0x0016, 5}, { 0x0020, 6}, { 0x0018, 7},
1412 { 0x0008, 8}, { 0x009A, 8}, { 0x0056, 9}, { 0x013E, 9}, { 0x00F0, 10}, { 0x03A5, 10},
1413 { 0x0077, 11}, { 0x01EF, 11}, { 0x009A, 12}, { 0x005D, 13}, { 0x0001, 4}, { 0x0011, 5},
1414 { 0x0002, 7}, { 0x000B, 8}, { 0x0012, 9}, { 0x01D6, 9}, { 0x027E, 10}, { 0x0191, 11},
1415 { 0x00EA, 12}, { 0x03DC, 12}, { 0x013B, 13}, { 0x0004, 5}, { 0x0014, 7}, { 0x009E, 8},
1416 { 0x0009, 10}, { 0x01AC, 11}, { 0x01E2, 11}, { 0x03CA, 12}, { 0x005F, 13}, { 0x0017, 5},
1417 { 0x004E, 7}, { 0x005E, 9}, { 0x00F3, 10}, { 0x01AD, 11}, { 0x00EC, 12}, { 0x05F0, 13},
1418 { 0x000E, 6}, { 0x00E1, 8}, { 0x03A4, 10}, { 0x009C, 12}, { 0x013D, 13}, { 0x003B, 6},
1419 { 0x001C, 9}, { 0x0014, 11}, { 0x09BE, 12}, { 0x0006, 7}, { 0x007A, 9}, { 0x0190, 11},
1420 { 0x0137, 13}, { 0x001B, 7}, { 0x0008, 10}, { 0x075C, 11}, { 0x0071, 7}, { 0x00D7, 10},
1421 { 0x09BF, 12}, { 0x0007, 8}, { 0x00AF, 10}, { 0x04CC, 11}, { 0x0034, 8}, { 0x0265, 10},
1422 { 0x009F, 12}, { 0x00E0, 8}, { 0x0016, 11}, { 0x0327, 12}, { 0x0015, 9}, { 0x017D, 11},
1423 { 0x0EBB, 12}, { 0x0014, 9}, { 0x00F6, 10}, { 0x01E4, 11}, { 0x00CB, 10}, { 0x099D, 12},
1424 { 0x00CA, 10}, { 0x02FC, 12}, { 0x017F, 11}, { 0x04CD, 11}, { 0x02FD, 12}, { 0x04FE, 11},
1425 { 0x013A, 13}, { 0x000A, 4}, { 0x0042, 7}, { 0x01D3, 9}, { 0x04DD, 11}, { 0x0012, 5},
1426 { 0x00E8, 8}, { 0x004C, 11}, { 0x0136, 13}, { 0x0039, 6}, { 0x0264, 10}, { 0x0EBA, 12},
1427 { 0x0000, 7}, { 0x00AE, 10}, { 0x099C, 12}, { 0x001F, 7}, { 0x04DE, 11}, { 0x0043, 7},
1428 { 0x04DC, 11}, { 0x0003, 8}, { 0x03CB, 12}, { 0x0006, 8}, { 0x099E, 12}, { 0x002A, 8},
1429 { 0x05F1, 13}, { 0x000F, 8}, { 0x09FE, 12}, { 0x0033, 8}, { 0x09FF, 12}, { 0x0098, 8},
1430 { 0x099F, 12}, { 0x00EA, 8}, { 0x013C, 13}, { 0x002E, 8}, { 0x0192, 11}, { 0x0136, 9},
1431 { 0x006A, 9}, { 0x0015, 11}, { 0x03AF, 10}, { 0x01E3, 11}, { 0x0074, 11}, { 0x00EB, 12},
1432 { 0x02F9, 12}, { 0x005C, 13}, { 0x00ED, 12}, { 0x03DD, 12}, { 0x0326, 12}, { 0x005E, 13},
1436 { 0x0004, 3}, { 0x0014, 5}, { 0x0017, 7}, { 0x007F, 8}, { 0x0154, 9}, { 0x01F2, 10},
1437 { 0x00BF, 11}, { 0x0065, 12}, { 0x0AAA, 12}, { 0x0630, 13}, { 0x1597, 13}, { 0x03B7, 14},
1438 { 0x2B22, 14}, { 0x0BE6, 15}, { 0x000B, 4}, { 0x0037, 7}, { 0x0062, 9}, { 0x0007, 11},
1439 { 0x0166, 12}, { 0x00CE, 13}, { 0x1590, 13}, { 0x05F6, 14}, { 0x0BE7, 15}, { 0x0007, 5},
1440 { 0x006D, 8}, { 0x0003, 11}, { 0x031F, 12}, { 0x05F2, 14}, { 0x0002, 6}, { 0x0061, 9},
1441 { 0x0055, 12}, { 0x01DF, 14}, { 0x001A, 6}, { 0x001E, 10}, { 0x0AC9, 12}, { 0x2B23, 14},
1442 { 0x001E, 6}, { 0x001F, 10}, { 0x0AC3, 12}, { 0x2B2B, 14}, { 0x0006, 7}, { 0x0004, 11},
1443 { 0x02F8, 13}, { 0x0019, 7}, { 0x0006, 11}, { 0x063D, 13}, { 0x0057, 7}, { 0x0182, 11},
1444 { 0x2AA2, 14}, { 0x0004, 8}, { 0x0180, 11}, { 0x059C, 14}, { 0x007D, 8}, { 0x0164, 12},
1445 { 0x076D, 15}, { 0x0002, 9}, { 0x018D, 11}, { 0x1581, 13}, { 0x00AD, 8}, { 0x0060, 12},
1446 { 0x0C67, 14}, { 0x001C, 9}, { 0x00EE, 13}, { 0x0003, 9}, { 0x02CF, 13}, { 0x00D9, 9},
1447 { 0x1580, 13}, { 0x0002, 11}, { 0x0183, 11}, { 0x0057, 12}, { 0x0061, 12}, { 0x0031, 11},
1448 { 0x0066, 12}, { 0x0631, 13}, { 0x0632, 13}, { 0x00AC, 13}, { 0x031D, 12}, { 0x0076, 12},
1449 { 0x003A, 11}, { 0x0165, 12}, { 0x0C66, 14}, { 0x0003, 2}, { 0x0054, 7}, { 0x02AB, 10},
1450 { 0x0016, 13}, { 0x05F7, 14}, { 0x0005, 4}, { 0x00F8, 9}, { 0x0AA9, 12}, { 0x005F, 15},
1451 { 0x0004, 4}, { 0x001C, 10}, { 0x1550, 13}, { 0x0004, 5}, { 0x0077, 11}, { 0x076C, 15},
1452 { 0x000E, 5}, { 0x000A, 12}, { 0x000C, 5}, { 0x0562, 11}, { 0x0004, 6}, { 0x031C, 12},
1453 { 0x0006, 6}, { 0x00C8, 13}, { 0x000D, 6}, { 0x01DA, 13}, { 0x0007, 6}, { 0x00C9, 13},
1454 { 0x0001, 7}, { 0x002E, 14}, { 0x0014, 7}, { 0x1596, 13}, { 0x000A, 7}, { 0x0AC2, 12},
1455 { 0x0016, 7}, { 0x015B, 14}, { 0x0015, 7}, { 0x015A, 14}, { 0x000F, 8}, { 0x005E, 15},
1456 { 0x007E, 8}, { 0x00AB, 8}, { 0x002D, 9}, { 0x00D8, 9}, { 0x000B, 9}, { 0x0014, 10},
1457 { 0x02B3, 10}, { 0x01F3, 10}, { 0x003A, 10}, { 0x0000, 10}, { 0x0058, 10}, { 0x002E, 9},
1458 { 0x005E, 10}, { 0x0563, 11}, { 0x00EC, 12}, { 0x0054, 12}, { 0x0AC1, 12}, { 0x1556, 13},
1459 { 0x02FA, 13}, { 0x0181, 11}, { 0x1557, 13}, { 0x059D, 14}, { 0x2AA3, 14}, { 0x2B2A, 14},
1460 { 0x01DE, 14}, { 0x063C, 13}, { 0x00CF, 13}, { 0x1594, 13}, { 0x000D, 9}
1463 { 0x0002, 2}, { 0x0006, 3}, { 0x000F, 4}, { 0x000D, 5}, { 0x000C, 5}, { 0x0015, 6},
1464 { 0x0013, 6}, { 0x0012, 6}, { 0x0017, 7}, { 0x001F, 8}, { 0x001E, 8}, { 0x001D, 8},
1465 { 0x0025, 9}, { 0x0024, 9}, { 0x0023, 9}, { 0x0021, 9}, { 0x0021, 10}, { 0x0020, 10},
1466 { 0x000F, 10}, { 0x000E, 10}, { 0x0007, 11}, { 0x0006, 11}, { 0x0020, 11}, { 0x0021, 11},
1467 { 0x0050, 12}, { 0x0051, 12}, { 0x0052, 12}, { 0x000E, 4}, { 0x0014, 6}, { 0x0016, 7},
1468 { 0x001C, 8}, { 0x0020, 9}, { 0x001F, 9}, { 0x000D, 10}, { 0x0022, 11}, { 0x0053, 12},
1469 { 0x0055, 12}, { 0x000B, 5}, { 0x0015, 7}, { 0x001E, 9}, { 0x000C, 10}, { 0x0056, 12},
1470 { 0x0011, 6}, { 0x001B, 8}, { 0x001D, 9}, { 0x000B, 10}, { 0x0010, 6}, { 0x0022, 9},
1471 { 0x000A, 10}, { 0x000D, 6}, { 0x001C, 9}, { 0x0008, 10}, { 0x0012, 7}, { 0x001B, 9},
1472 { 0x0054, 12}, { 0x0014, 7}, { 0x001A, 9}, { 0x0057, 12}, { 0x0019, 8}, { 0x0009, 10},
1473 { 0x0018, 8}, { 0x0023, 11}, { 0x0017, 8}, { 0x0019, 9}, { 0x0018, 9}, { 0x0007, 10},
1474 { 0x0058, 12}, { 0x0007, 4}, { 0x000C, 6}, { 0x0016, 8}, { 0x0017, 9}, { 0x0006, 10},
1475 { 0x0005, 11}, { 0x0004, 11}, { 0x0059, 12}, { 0x000F, 6}, { 0x0016, 9}, { 0x0005, 10},
1476 { 0x000E, 6}, { 0x0004, 10}, { 0x0011, 7}, { 0x0024, 11}, { 0x0010, 7}, { 0x0025, 11},
1477 { 0x0013, 7}, { 0x005A, 12}, { 0x0015, 8}, { 0x005B, 12}, { 0x0014, 8}, { 0x0013, 8},
1478 { 0x001A, 8}, { 0x0015, 9}, { 0x0014, 9}, { 0x0013, 9}, { 0x0012, 9}, { 0x0011, 9},
1479 { 0x0026, 11}, { 0x0027, 11}, { 0x005C, 12}, { 0x005D, 12}, { 0x005E, 12}, { 0x005F, 12},
1483 { 0x0002, 2}, { 0x000F, 4}, { 0x0015, 6}, { 0x0017, 7}, { 0x001F, 8}, { 0x0025, 9},
1484 { 0x0024, 9}, { 0x0021, 10}, { 0x0020, 10}, { 0x0007, 11}, { 0x0006, 11}, { 0x0020, 11},
1485 { 0x0006, 3}, { 0x0014, 6}, { 0x001E, 8}, { 0x000F, 10}, { 0x0021, 11}, { 0x0050, 12},
1486 { 0x000E, 4}, { 0x001D, 8}, { 0x000E, 10}, { 0x0051, 12}, { 0x000D, 5}, { 0x0023, 9},
1487 { 0x000D, 10}, { 0x000C, 5}, { 0x0022, 9}, { 0x0052, 12}, { 0x000B, 5}, { 0x000C, 10},
1488 { 0x0053, 12}, { 0x0013, 6}, { 0x000B, 10}, { 0x0054, 12}, { 0x0012, 6}, { 0x000A, 10},
1489 { 0x0011, 6}, { 0x0009, 10}, { 0x0010, 6}, { 0x0008, 10}, { 0x0016, 7}, { 0x0055, 12},
1490 { 0x0015, 7}, { 0x0014, 7}, { 0x001C, 8}, { 0x001B, 8}, { 0x0021, 9}, { 0x0020, 9},
1491 { 0x001F, 9}, { 0x001E, 9}, { 0x001D, 9}, { 0x001C, 9}, { 0x001B, 9}, { 0x001A, 9},
1492 { 0x0022, 11}, { 0x0023, 11}, { 0x0056, 12}, { 0x0057, 12}, { 0x0007, 4}, { 0x0019, 9},
1493 { 0x0005, 11}, { 0x000F, 6}, { 0x0004, 11}, { 0x000E, 6}, { 0x000D, 6}, { 0x000C, 6},
1494 { 0x0013, 7}, { 0x0012, 7}, { 0x0011, 7}, { 0x0010, 7}, { 0x001A, 8}, { 0x0019, 8},
1495 { 0x0018, 8}, { 0x0017, 8}, { 0x0016, 8}, { 0x0015, 8}, { 0x0014, 8}, { 0x0013, 8},
1496 { 0x0018, 9}, { 0x0017, 9}, { 0x0016, 9}, { 0x0015, 9}, { 0x0014, 9}, { 0x0013, 9},
1497 { 0x0012, 9}, { 0x0011, 9}, { 0x0007, 10}, { 0x0006, 10}, { 0x0005, 10}, { 0x0004, 10},
1498 { 0x0024, 11}, { 0x0025, 11}, { 0x0026, 11}, { 0x0027, 11}, { 0x0058, 12}, { 0x0059, 12},
1499 { 0x005A, 12}, { 0x005B, 12}, { 0x005C, 12}, { 0x005D, 12}, { 0x005E, 12}, { 0x005F, 12},
1503 { 0x0000, 2}, { 0x0003, 3}, { 0x000D, 4}, { 0x0005, 4}, { 0x001C, 5}, { 0x0016, 5},
1504 { 0x003F, 6}, { 0x003A, 6}, { 0x002E, 6}, { 0x0022, 6}, { 0x007B, 7}, { 0x0067, 7},
1505 { 0x005F, 7}, { 0x0047, 7}, { 0x0026, 7}, { 0x00EF, 8}, { 0x00CD, 8}, { 0x00C1, 8},
1506 { 0x00A9, 8}, { 0x004F, 8}, { 0x01F2, 9}, { 0x01DD, 9}, { 0x0199, 9}, { 0x0185, 9},
1507 { 0x015D, 9}, { 0x011B, 9}, { 0x03EF, 10}, { 0x03E1, 10}, { 0x03C8, 10}, { 0x0331, 10},
1508 { 0x0303, 10}, { 0x02F1, 10}, { 0x02A0, 10}, { 0x0233, 10}, { 0x0126, 10}, { 0x07C0, 11},
1509 { 0x076F, 11}, { 0x076C, 11}, { 0x0661, 11}, { 0x0604, 11}, { 0x0572, 11}, { 0x0551, 11},
1510 { 0x046A, 11}, { 0x0274, 11}, { 0x0F27, 12}, { 0x0F24, 12}, { 0x0EDB, 12}, { 0x0C8E, 12},
1511 { 0x0C0B, 12}, { 0x0C0A, 12}, { 0x0AE3, 12}, { 0x08D6, 12}, { 0x0490, 12}, { 0x0495, 12},
1512 { 0x1F19, 13}, { 0x1DB5, 13}, { 0x0009, 4}, { 0x0010, 5}, { 0x0029, 6}, { 0x0062, 7},
1513 { 0x00F3, 8}, { 0x00AD, 8}, { 0x01E5, 9}, { 0x0179, 9}, { 0x009C, 9}, { 0x03B1, 10},
1514 { 0x02AE, 10}, { 0x0127, 10}, { 0x076E, 11}, { 0x0570, 11}, { 0x0275, 11}, { 0x0F25, 12},
1515 { 0x0EC0, 12}, { 0x0AA0, 12}, { 0x08D7, 12}, { 0x1E4C, 13}, { 0x0008, 5}, { 0x0063, 7},
1516 { 0x00AF, 8}, { 0x017B, 9}, { 0x03B3, 10}, { 0x07DD, 11}, { 0x0640, 11}, { 0x0F8D, 12},
1517 { 0x0BC1, 12}, { 0x0491, 12}, { 0x0028, 6}, { 0x00C3, 8}, { 0x0151, 9}, { 0x02A1, 10},
1518 { 0x0573, 11}, { 0x0EC3, 12}, { 0x1F35, 13}, { 0x0065, 7}, { 0x01DA, 9}, { 0x02AF, 10},
1519 { 0x0277, 11}, { 0x08C9, 12}, { 0x1781, 13}, { 0x0025, 7}, { 0x0118, 9}, { 0x0646, 11},
1520 { 0x0AA6, 12}, { 0x1780, 13}, { 0x00C9, 8}, { 0x0321, 10}, { 0x0F9B, 12}, { 0x191E, 13},
1521 { 0x0048, 8}, { 0x07CC, 11}, { 0x0AA1, 12}, { 0x0180, 9}, { 0x0465, 11}, { 0x1905, 13},
1522 { 0x03E2, 10}, { 0x0EC1, 12}, { 0x3C9B, 14}, { 0x02F4, 10}, { 0x08C8, 12}, { 0x07C1, 11},
1523 { 0x0928, 13}, { 0x05E1, 11}, { 0x320D, 14}, { 0x0EC2, 12}, { 0x6418, 15}, { 0x1F34, 13},
1524 { 0x0078, 7}, { 0x0155, 9}, { 0x0552, 11}, { 0x191F, 13}, { 0x00FA, 8}, { 0x07DC, 11},
1525 { 0x1907, 13}, { 0x00AC, 8}, { 0x0249, 11}, { 0x13B1, 14}, { 0x01F6, 9}, { 0x0AE2, 12},
1526 { 0x01DC, 9}, { 0x04ED, 12}, { 0x0184, 9}, { 0x1904, 13}, { 0x0156, 9}, { 0x09D9, 13},
1527 { 0x03E7, 10}, { 0x0929, 13}, { 0x03B2, 10}, { 0x3B68, 14}, { 0x02F5, 10}, { 0x13B0, 14},
1528 { 0x0322, 10}, { 0x3B69, 14}, { 0x0234, 10}, { 0x7935, 15}, { 0x07C7, 11}, { 0xC833, 16},
1529 { 0x0660, 11}, { 0x7934, 15}, { 0x024B, 11}, { 0xC832, 16}, { 0x0AA7, 12}, { 0x1F18, 13},
1533 { 0x0002, 2}, { 0x0000, 3}, { 0x001E, 5}, { 0x0004, 5}, { 0x0012, 6}, { 0x0070, 7},
1534 { 0x001A, 7}, { 0x005F, 8}, { 0x0047, 8}, { 0x01D3, 9}, { 0x00B5, 9}, { 0x0057, 9},
1535 { 0x03B5, 10}, { 0x016D, 10}, { 0x0162, 10}, { 0x07CE, 11}, { 0x0719, 11}, { 0x0691, 11},
1536 { 0x02C6, 11}, { 0x0156, 11}, { 0x0F92, 12}, { 0x0D2E, 12}, { 0x0D20, 12}, { 0x059E, 12},
1537 { 0x0468, 12}, { 0x02A6, 12}, { 0x1DA2, 13}, { 0x1C60, 13}, { 0x1A43, 13}, { 0x0B1D, 13},
1538 { 0x08C0, 13}, { 0x055D, 13}, { 0x0003, 3}, { 0x000A, 5}, { 0x0077, 7}, { 0x00E5, 8},
1539 { 0x01D9, 9}, { 0x03E5, 10}, { 0x0166, 10}, { 0x0694, 11}, { 0x0152, 11}, { 0x059F, 12},
1540 { 0x1F3C, 13}, { 0x1A4B, 13}, { 0x055E, 13}, { 0x000C, 4}, { 0x007D, 7}, { 0x0044, 8},
1541 { 0x03E0, 10}, { 0x0769, 11}, { 0x0E31, 12}, { 0x1F26, 13}, { 0x055C, 13}, { 0x001B, 5},
1542 { 0x00E2, 8}, { 0x03A5, 10}, { 0x02C9, 11}, { 0x1F23, 13}, { 0x3B47, 14}, { 0x0007, 5},
1543 { 0x01D8, 9}, { 0x02D8, 11}, { 0x1F27, 13}, { 0x3494, 14}, { 0x0035, 6}, { 0x03E1, 10},
1544 { 0x059C, 12}, { 0x38C3, 14}, { 0x000C, 6}, { 0x0165, 10}, { 0x1D23, 13}, { 0x1638, 14},
1545 { 0x0068, 7}, { 0x0693, 11}, { 0x3A45, 14}, { 0x0020, 7}, { 0x0F90, 12}, { 0x7CF6, 15},
1546 { 0x00E8, 8}, { 0x058F, 12}, { 0x2CEF, 15}, { 0x0045, 8}, { 0x0B3A, 13}, { 0x01F1, 9},
1547 { 0x3B46, 14}, { 0x01A7, 9}, { 0x1676, 14}, { 0x0056, 9}, { 0x692A, 15}, { 0x038D, 10},
1548 { 0xE309, 16}, { 0x00AA, 10}, { 0x1C611, 17}, { 0x02DF, 11}, { 0xB3B9, 17}, { 0x02C8, 11},
1549 { 0x38C20, 18}, { 0x01B0, 11}, { 0x16390, 18}, { 0x0F9F, 12}, { 0x16771, 18}, { 0x0ED0, 12},
1550 { 0x71843, 19}, { 0x0D2A, 12}, { 0xF9E8C, 20}, { 0x0461, 12}, { 0xF9E8E, 20}, { 0x0B67, 13},
1551 { 0x055F, 13}, { 0x003F, 6}, { 0x006D, 9}, { 0x0E90, 12}, { 0x054E, 13}, { 0x0013, 6},
1552 { 0x0119, 10}, { 0x0B66, 13}, { 0x000B, 6}, { 0x0235, 11}, { 0x7CF5, 15}, { 0x0075, 7},
1553 { 0x0D24, 12}, { 0xF9E9, 16}, { 0x002E, 7}, { 0x1F22, 13}, { 0x0021, 7}, { 0x054F, 13},
1554 { 0x0014, 7}, { 0x3A44, 14}, { 0x00E4, 8}, { 0x7CF7, 15}, { 0x005E, 8}, { 0x7185, 15},
1555 { 0x0037, 8}, { 0x2C73, 15}, { 0x01DB, 9}, { 0x59DD, 16}, { 0x01C7, 9}, { 0x692B, 15},
1556 { 0x01A6, 9}, { 0x58E5, 16}, { 0x00B4, 9}, { 0x1F3D0, 17}, { 0x00B0, 9}, { 0xB1C9, 17},
1557 { 0x03E6, 10}, { 0x16770, 18}, { 0x016E, 10}, { 0x3E7A2, 18}, { 0x011B, 10}, { 0xF9E8D, 20},
1558 { 0x00D9, 10}, { 0xF9E8F, 20}, { 0x00A8, 10}, { 0x2C723, 19}, { 0x0749, 11}, { 0xE3084, 20},
1559 { 0x0696, 11}, { 0x58E45, 20}, { 0x02DE, 11}, { 0xB1C88, 21}, { 0x0231, 11}, { 0x1C610A, 21},
1560 { 0x01B1, 11}, { 0x71842D, 23}, { 0x0D2B, 12}, { 0x38C217, 22}, { 0x0D2F, 12}, { 0x163913, 22},
1561 { 0x05B2, 12}, { 0x163912, 22}, { 0x0469, 12}, { 0x71842C, 23}, { 0x1A42, 13}, { 0x08C1, 13},
1566 static const uint16_t vlc_offs[] = {
1567 0, 520, 552, 616, 1128, 1160, 1224, 1740, 1772, 1836, 1900, 2436,
1568 2986, 3050, 3610, 4154, 4218, 4746, 5326, 5390, 5902, 6554, 7658, 8342,
1569 9304, 9988, 10630, 11234, 12174, 13006, 13560, 14232, 14786, 15432, 16350, 17522,
1570 20372, 21818, 22330, 22394, 23166, 23678, 23742, 24820, 25332, 25396, 26460, 26980,
1571 27048, 27592, 27600, 27608, 27616, 27624, 28224, 28258, 28290, 28802, 28834, 28866,
1572 29378, 29412, 29444, 29960, 29994, 30026, 30538, 30572, 30604, 31120, 31154, 31186,
1573 31714, 31746, 31778, 32306, 32340, 32372
1577 * Init VC-1 specific tables and VC1Context members
1578 * @param v The VC1Context to initialize
1581 av_cold int ff_vc1_init_common(VC1Context *v)
1583 static int done = 0;
1585 static VLC_TYPE vlc_table[32372][2];
1587 v->hrd_rate = v->hrd_buffer = NULL;
1591 INIT_VLC_STATIC(&ff_vc1_bfraction_vlc, VC1_BFRACTION_VLC_BITS, 23,
1592 ff_vc1_bfraction_bits, 1, 1,
1593 ff_vc1_bfraction_codes, 1, 1, 1 << VC1_BFRACTION_VLC_BITS);
1594 INIT_VLC_STATIC(&ff_vc1_norm2_vlc, VC1_NORM2_VLC_BITS, 4,
1595 ff_vc1_norm2_bits, 1, 1,
1596 ff_vc1_norm2_codes, 1, 1, 1 << VC1_NORM2_VLC_BITS);
1597 INIT_VLC_STATIC(&ff_vc1_norm6_vlc, VC1_NORM6_VLC_BITS, 64,
1598 ff_vc1_norm6_bits, 1, 1,
1599 ff_vc1_norm6_codes, 2, 2, 556);
1600 INIT_VLC_STATIC(&ff_vc1_imode_vlc, VC1_IMODE_VLC_BITS, 7,
1601 ff_vc1_imode_bits, 1, 1,
1602 ff_vc1_imode_codes, 1, 1, 1 << VC1_IMODE_VLC_BITS);
1603 for (i = 0; i < 3; i++) {
1604 ff_vc1_ttmb_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 0]];
1605 ff_vc1_ttmb_vlc[i].table_allocated = vlc_offs[i * 3 + 1] - vlc_offs[i * 3 + 0];
1606 init_vlc(&ff_vc1_ttmb_vlc[i], VC1_TTMB_VLC_BITS, 16,
1607 ff_vc1_ttmb_bits[i], 1, 1,
1608 ff_vc1_ttmb_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
1609 ff_vc1_ttblk_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 1]];
1610 ff_vc1_ttblk_vlc[i].table_allocated = vlc_offs[i * 3 + 2] - vlc_offs[i * 3 + 1];
1611 init_vlc(&ff_vc1_ttblk_vlc[i], VC1_TTBLK_VLC_BITS, 8,
1612 ff_vc1_ttblk_bits[i], 1, 1,
1613 ff_vc1_ttblk_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1614 ff_vc1_subblkpat_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 2]];
1615 ff_vc1_subblkpat_vlc[i].table_allocated = vlc_offs[i * 3 + 3] - vlc_offs[i * 3 + 2];
1616 init_vlc(&ff_vc1_subblkpat_vlc[i], VC1_SUBBLKPAT_VLC_BITS, 15,
1617 ff_vc1_subblkpat_bits[i], 1, 1,
1618 ff_vc1_subblkpat_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1620 for (i = 0; i < 4; i++) {
1621 ff_vc1_4mv_block_pattern_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 9]];
1622 ff_vc1_4mv_block_pattern_vlc[i].table_allocated = vlc_offs[i * 3 + 10] - vlc_offs[i * 3 + 9];
1623 init_vlc(&ff_vc1_4mv_block_pattern_vlc[i], VC1_4MV_BLOCK_PATTERN_VLC_BITS, 16,
1624 ff_vc1_4mv_block_pattern_bits[i], 1, 1,
1625 ff_vc1_4mv_block_pattern_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1626 ff_vc1_cbpcy_p_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 10]];
1627 ff_vc1_cbpcy_p_vlc[i].table_allocated = vlc_offs[i * 3 + 11] - vlc_offs[i * 3 + 10];
1628 init_vlc(&ff_vc1_cbpcy_p_vlc[i], VC1_CBPCY_P_VLC_BITS, 64,
1629 ff_vc1_cbpcy_p_bits[i], 1, 1,
1630 ff_vc1_cbpcy_p_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
1631 ff_vc1_mv_diff_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 11]];
1632 ff_vc1_mv_diff_vlc[i].table_allocated = vlc_offs[i * 3 + 12] - vlc_offs[i * 3 + 11];
1633 init_vlc(&ff_vc1_mv_diff_vlc[i], VC1_MV_DIFF_VLC_BITS, 73,
1634 ff_vc1_mv_diff_bits[i], 1, 1,
1635 ff_vc1_mv_diff_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
1637 for (i = 0; i < 8; i++) {
1638 ff_vc1_ac_coeff_table[i].table = &vlc_table[vlc_offs[i * 2 + 21]];
1639 ff_vc1_ac_coeff_table[i].table_allocated = vlc_offs[i * 2 + 22] - vlc_offs[i * 2 + 21];
1640 init_vlc(&ff_vc1_ac_coeff_table[i], AC_VLC_BITS, ff_vc1_ac_sizes[i],
1641 &vc1_ac_tables[i][0][1], 8, 4,
1642 &vc1_ac_tables[i][0][0], 8, 4, INIT_VLC_USE_NEW_STATIC);
1643 /* initialize interlaced MVDATA tables (2-Ref) */
1644 ff_vc1_2ref_mvdata_vlc[i].table = &vlc_table[vlc_offs[i * 2 + 22]];
1645 ff_vc1_2ref_mvdata_vlc[i].table_allocated = vlc_offs[i * 2 + 23] - vlc_offs[i * 2 + 22];
1646 init_vlc(&ff_vc1_2ref_mvdata_vlc[i], VC1_2REF_MVDATA_VLC_BITS, 126,
1647 ff_vc1_2ref_mvdata_bits[i], 1, 1,
1648 ff_vc1_2ref_mvdata_codes[i], 4, 4, INIT_VLC_USE_NEW_STATIC);
1650 for (i = 0; i < 4; i++) {
1651 /* initialize 4MV MBMODE VLC tables for interlaced frame P picture */
1652 ff_vc1_intfr_4mv_mbmode_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 37]];
1653 ff_vc1_intfr_4mv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 38] - vlc_offs[i * 3 + 37];
1654 init_vlc(&ff_vc1_intfr_4mv_mbmode_vlc[i], VC1_INTFR_4MV_MBMODE_VLC_BITS, 15,
1655 ff_vc1_intfr_4mv_mbmode_bits[i], 1, 1,
1656 ff_vc1_intfr_4mv_mbmode_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
1657 /* initialize NON-4MV MBMODE VLC tables for the same */
1658 ff_vc1_intfr_non4mv_mbmode_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 38]];
1659 ff_vc1_intfr_non4mv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 39] - vlc_offs[i * 3 + 38];
1660 init_vlc(&ff_vc1_intfr_non4mv_mbmode_vlc[i], VC1_INTFR_NON4MV_MBMODE_VLC_BITS, 9,
1661 ff_vc1_intfr_non4mv_mbmode_bits[i], 1, 1,
1662 ff_vc1_intfr_non4mv_mbmode_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1663 /* initialize interlaced MVDATA tables (1-Ref) */
1664 ff_vc1_1ref_mvdata_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 39]];
1665 ff_vc1_1ref_mvdata_vlc[i].table_allocated = vlc_offs[i * 3 + 40] - vlc_offs[i * 3 + 39];
1666 init_vlc(&ff_vc1_1ref_mvdata_vlc[i], VC1_1REF_MVDATA_VLC_BITS, 72,
1667 ff_vc1_1ref_mvdata_bits[i], 1, 1,
1668 ff_vc1_1ref_mvdata_codes[i], 4, 4, INIT_VLC_USE_NEW_STATIC);
1670 for (i = 0; i < 4; i++) {
1671 /* Initialize 2MV Block pattern VLC tables */
1672 ff_vc1_2mv_block_pattern_vlc[i].table = &vlc_table[vlc_offs[i + 49]];
1673 ff_vc1_2mv_block_pattern_vlc[i].table_allocated = vlc_offs[i + 50] - vlc_offs[i + 49];
1674 init_vlc(&ff_vc1_2mv_block_pattern_vlc[i], VC1_2MV_BLOCK_PATTERN_VLC_BITS, 4,
1675 ff_vc1_2mv_block_pattern_bits[i], 1, 1,
1676 ff_vc1_2mv_block_pattern_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1678 for (i = 0; i < 8; i++) {
1679 /* Initialize interlaced CBPCY VLC tables (Table 124 - Table 131) */
1680 ff_vc1_icbpcy_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 53]];
1681 ff_vc1_icbpcy_vlc[i].table_allocated = vlc_offs[i * 3 + 54] - vlc_offs[i * 3 + 53];
1682 init_vlc(&ff_vc1_icbpcy_vlc[i], VC1_ICBPCY_VLC_BITS, 63,
1683 ff_vc1_icbpcy_p_bits[i], 1, 1,
1684 ff_vc1_icbpcy_p_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
1685 /* Initialize interlaced field picture MBMODE VLC tables */
1686 ff_vc1_if_mmv_mbmode_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 54]];
1687 ff_vc1_if_mmv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 55] - vlc_offs[i * 3 + 54];
1688 init_vlc(&ff_vc1_if_mmv_mbmode_vlc[i], VC1_IF_MMV_MBMODE_VLC_BITS, 8,
1689 ff_vc1_if_mmv_mbmode_bits[i], 1, 1,
1690 ff_vc1_if_mmv_mbmode_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1691 ff_vc1_if_1mv_mbmode_vlc[i].table = &vlc_table[vlc_offs[i * 3 + 55]];
1692 ff_vc1_if_1mv_mbmode_vlc[i].table_allocated = vlc_offs[i * 3 + 56] - vlc_offs[i * 3 + 55];
1693 init_vlc(&ff_vc1_if_1mv_mbmode_vlc[i], VC1_IF_1MV_MBMODE_VLC_BITS, 6,
1694 ff_vc1_if_1mv_mbmode_bits[i], 1, 1,
1695 ff_vc1_if_1mv_mbmode_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
1700 /* Other defaults */
1702 v->mvrange = 0; /* 7.1.1.18, p80 */
1704 ff_vc1dsp_init(&v->vc1dsp);