2 * VC-1 and WMV3 decoder
3 * Copyright (c) 2006-2007 Konstantin Shishkov
4 * Partly based on vc9.c (c) 2005 Anonymous, Alex Beregszaszi, Michael Niedermayer
6 * This file is part of Libav.
8 * Libav is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * Libav is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with Libav; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
25 * VC-1 and WMV3 decoder
31 #include "mpegvideo.h"
35 #include "vc1acdata.h"
36 #include "msmpeg4data.h"
38 #include "simple_idct.h"
40 #include "vdpau_internal.h"
45 #define MB_INTRA_VLC_BITS 9
50 static const uint16_t vlc_offs[] = {
51 0, 520, 552, 616, 1128, 1160, 1224, 1740, 1772, 1836, 1900, 2436,
52 2986, 3050, 3610, 4154, 4218, 4746, 5326, 5390, 5902, 6554, 7658, 8620,
53 9262, 10202, 10756, 11310, 12228, 15078
57 * Init VC-1 specific tables and VC1Context members
58 * @param v The VC1Context to initialize
61 static int vc1_init_common(VC1Context *v)
65 static VLC_TYPE vlc_table[15078][2];
67 v->hrd_rate = v->hrd_buffer = NULL;
72 INIT_VLC_STATIC(&ff_vc1_bfraction_vlc, VC1_BFRACTION_VLC_BITS, 23,
73 ff_vc1_bfraction_bits, 1, 1,
74 ff_vc1_bfraction_codes, 1, 1, 1 << VC1_BFRACTION_VLC_BITS);
75 INIT_VLC_STATIC(&ff_vc1_norm2_vlc, VC1_NORM2_VLC_BITS, 4,
76 ff_vc1_norm2_bits, 1, 1,
77 ff_vc1_norm2_codes, 1, 1, 1 << VC1_NORM2_VLC_BITS);
78 INIT_VLC_STATIC(&ff_vc1_norm6_vlc, VC1_NORM6_VLC_BITS, 64,
79 ff_vc1_norm6_bits, 1, 1,
80 ff_vc1_norm6_codes, 2, 2, 556);
81 INIT_VLC_STATIC(&ff_vc1_imode_vlc, VC1_IMODE_VLC_BITS, 7,
82 ff_vc1_imode_bits, 1, 1,
83 ff_vc1_imode_codes, 1, 1, 1 << VC1_IMODE_VLC_BITS);
86 ff_vc1_ttmb_vlc[i].table = &vlc_table[vlc_offs[i*3+0]];
87 ff_vc1_ttmb_vlc[i].table_allocated = vlc_offs[i*3+1] - vlc_offs[i*3+0];
88 init_vlc(&ff_vc1_ttmb_vlc[i], VC1_TTMB_VLC_BITS, 16,
89 ff_vc1_ttmb_bits[i], 1, 1,
90 ff_vc1_ttmb_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
91 ff_vc1_ttblk_vlc[i].table = &vlc_table[vlc_offs[i*3+1]];
92 ff_vc1_ttblk_vlc[i].table_allocated = vlc_offs[i*3+2] - vlc_offs[i*3+1];
93 init_vlc(&ff_vc1_ttblk_vlc[i], VC1_TTBLK_VLC_BITS, 8,
94 ff_vc1_ttblk_bits[i], 1, 1,
95 ff_vc1_ttblk_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
96 ff_vc1_subblkpat_vlc[i].table = &vlc_table[vlc_offs[i*3+2]];
97 ff_vc1_subblkpat_vlc[i].table_allocated = vlc_offs[i*3+3] - vlc_offs[i*3+2];
98 init_vlc(&ff_vc1_subblkpat_vlc[i], VC1_SUBBLKPAT_VLC_BITS, 15,
99 ff_vc1_subblkpat_bits[i], 1, 1,
100 ff_vc1_subblkpat_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
104 ff_vc1_4mv_block_pattern_vlc[i].table = &vlc_table[vlc_offs[i*3+9]];
105 ff_vc1_4mv_block_pattern_vlc[i].table_allocated = vlc_offs[i*3+10] - vlc_offs[i*3+9];
106 init_vlc(&ff_vc1_4mv_block_pattern_vlc[i], VC1_4MV_BLOCK_PATTERN_VLC_BITS, 16,
107 ff_vc1_4mv_block_pattern_bits[i], 1, 1,
108 ff_vc1_4mv_block_pattern_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
109 ff_vc1_cbpcy_p_vlc[i].table = &vlc_table[vlc_offs[i*3+10]];
110 ff_vc1_cbpcy_p_vlc[i].table_allocated = vlc_offs[i*3+11] - vlc_offs[i*3+10];
111 init_vlc(&ff_vc1_cbpcy_p_vlc[i], VC1_CBPCY_P_VLC_BITS, 64,
112 ff_vc1_cbpcy_p_bits[i], 1, 1,
113 ff_vc1_cbpcy_p_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
114 ff_vc1_mv_diff_vlc[i].table = &vlc_table[vlc_offs[i*3+11]];
115 ff_vc1_mv_diff_vlc[i].table_allocated = vlc_offs[i*3+12] - vlc_offs[i*3+11];
116 init_vlc(&ff_vc1_mv_diff_vlc[i], VC1_MV_DIFF_VLC_BITS, 73,
117 ff_vc1_mv_diff_bits[i], 1, 1,
118 ff_vc1_mv_diff_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
121 ff_vc1_ac_coeff_table[i].table = &vlc_table[vlc_offs[i+21]];
122 ff_vc1_ac_coeff_table[i].table_allocated = vlc_offs[i+22] - vlc_offs[i+21];
123 init_vlc(&ff_vc1_ac_coeff_table[i], AC_VLC_BITS, vc1_ac_sizes[i],
124 &vc1_ac_tables[i][0][1], 8, 4,
125 &vc1_ac_tables[i][0][0], 8, 4, INIT_VLC_USE_NEW_STATIC);
132 v->mvrange = 0; /* 7.1.1.18, p80 */
137 /***********************************************************************/
139 * @name VC-1 Bitplane decoding
157 /** @} */ //imode defines
160 /** @} */ //Bitplane group
162 static void vc1_put_signed_blocks_clamped(VC1Context *v)
164 MpegEncContext *s = &v->s;
166 /* The put pixels loop is always one MB row behind the decoding loop,
167 * because we can only put pixels when overlap filtering is done, and
168 * for filtering of the bottom edge of a MB, we need the next MB row
170 * Within the row, the put pixels loop is also one MB col behind the
171 * decoding loop. The reason for this is again, because for filtering
172 * of the right MB edge, we need the next MB present. */
173 if (!s->first_slice_line) {
175 s->dsp.put_signed_pixels_clamped(v->block[v->topleft_blk_idx][0],
176 s->dest[0] - 16 * s->linesize - 16,
178 s->dsp.put_signed_pixels_clamped(v->block[v->topleft_blk_idx][1],
179 s->dest[0] - 16 * s->linesize - 8,
181 s->dsp.put_signed_pixels_clamped(v->block[v->topleft_blk_idx][2],
182 s->dest[0] - 8 * s->linesize - 16,
184 s->dsp.put_signed_pixels_clamped(v->block[v->topleft_blk_idx][3],
185 s->dest[0] - 8 * s->linesize - 8,
187 s->dsp.put_signed_pixels_clamped(v->block[v->topleft_blk_idx][4],
188 s->dest[1] - 8 * s->uvlinesize - 8,
190 s->dsp.put_signed_pixels_clamped(v->block[v->topleft_blk_idx][5],
191 s->dest[2] - 8 * s->uvlinesize - 8,
194 if (s->mb_x == s->mb_width - 1) {
195 s->dsp.put_signed_pixels_clamped(v->block[v->top_blk_idx][0],
196 s->dest[0] - 16 * s->linesize,
198 s->dsp.put_signed_pixels_clamped(v->block[v->top_blk_idx][1],
199 s->dest[0] - 16 * s->linesize + 8,
201 s->dsp.put_signed_pixels_clamped(v->block[v->top_blk_idx][2],
202 s->dest[0] - 8 * s->linesize,
204 s->dsp.put_signed_pixels_clamped(v->block[v->top_blk_idx][3],
205 s->dest[0] - 8 * s->linesize + 8,
207 s->dsp.put_signed_pixels_clamped(v->block[v->top_blk_idx][4],
208 s->dest[1] - 8 * s->uvlinesize,
210 s->dsp.put_signed_pixels_clamped(v->block[v->top_blk_idx][5],
211 s->dest[2] - 8 * s->uvlinesize,
216 #define inc_blk_idx(idx) do { \
218 if (idx >= v->n_allocated_blks) \
222 inc_blk_idx(v->topleft_blk_idx);
223 inc_blk_idx(v->top_blk_idx);
224 inc_blk_idx(v->left_blk_idx);
225 inc_blk_idx(v->cur_blk_idx);
228 static void vc1_loop_filter_iblk(VC1Context *v, int pq)
230 MpegEncContext *s = &v->s;
232 if (!s->first_slice_line) {
233 v->vc1dsp.vc1_v_loop_filter16(s->dest[0], s->linesize, pq);
235 v->vc1dsp.vc1_h_loop_filter16(s->dest[0] - 16*s->linesize, s->linesize, pq);
236 v->vc1dsp.vc1_h_loop_filter16(s->dest[0] - 16*s->linesize+8, s->linesize, pq);
237 for(j = 0; j < 2; j++){
238 v->vc1dsp.vc1_v_loop_filter8(s->dest[j+1], s->uvlinesize, pq);
240 v->vc1dsp.vc1_h_loop_filter8(s->dest[j+1]-8*s->uvlinesize, s->uvlinesize, pq);
243 v->vc1dsp.vc1_v_loop_filter16(s->dest[0] + 8*s->linesize, s->linesize, pq);
245 if (s->mb_y == s->mb_height-1) {
247 v->vc1dsp.vc1_h_loop_filter16(s->dest[0], s->linesize, pq);
248 v->vc1dsp.vc1_h_loop_filter8(s->dest[1], s->uvlinesize, pq);
249 v->vc1dsp.vc1_h_loop_filter8(s->dest[2], s->uvlinesize, pq);
251 v->vc1dsp.vc1_h_loop_filter16(s->dest[0] + 8, s->linesize, pq);
255 static void vc1_loop_filter_iblk_delayed(VC1Context *v, int pq)
257 MpegEncContext *s = &v->s;
260 /* The loopfilter runs 1 row and 1 column behind the overlap filter, which
261 * means it runs two rows/cols behind the decoding loop. */
262 if (!s->first_slice_line) {
264 if (s->mb_y >= s->start_mb_y + 2) {
265 v->vc1dsp.vc1_v_loop_filter16(s->dest[0] - 16 * s->linesize - 16, s->linesize, pq);
268 v->vc1dsp.vc1_h_loop_filter16(s->dest[0] - 32 * s->linesize - 16, s->linesize, pq);
269 v->vc1dsp.vc1_h_loop_filter16(s->dest[0] - 32 * s->linesize - 8, s->linesize, pq);
270 for(j = 0; j < 2; j++) {
271 v->vc1dsp.vc1_v_loop_filter8(s->dest[j+1] - 8 * s->uvlinesize - 8, s->uvlinesize, pq);
273 v->vc1dsp.vc1_h_loop_filter8(s->dest[j+1] - 16 * s->uvlinesize - 8, s->uvlinesize, pq);
277 v->vc1dsp.vc1_v_loop_filter16(s->dest[0] - 8 * s->linesize - 16, s->linesize, pq);
280 if (s->mb_x == s->mb_width - 1) {
281 if (s->mb_y >= s->start_mb_y + 2) {
282 v->vc1dsp.vc1_v_loop_filter16(s->dest[0] - 16 * s->linesize, s->linesize, pq);
285 v->vc1dsp.vc1_h_loop_filter16(s->dest[0] - 32 * s->linesize, s->linesize, pq);
286 v->vc1dsp.vc1_h_loop_filter16(s->dest[0] - 32 * s->linesize + 8, s->linesize, pq);
287 for(j = 0; j < 2; j++) {
288 v->vc1dsp.vc1_v_loop_filter8(s->dest[j+1] - 8 * s->uvlinesize, s->uvlinesize, pq);
290 v->vc1dsp.vc1_h_loop_filter8(s->dest[j+1] - 16 * s->uvlinesize, s->uvlinesize, pq);
294 v->vc1dsp.vc1_v_loop_filter16(s->dest[0] - 8 * s->linesize, s->linesize, pq);
297 if (s->mb_y == s->mb_height) {
300 v->vc1dsp.vc1_h_loop_filter16(s->dest[0] - 16 * s->linesize - 16, s->linesize, pq);
301 v->vc1dsp.vc1_h_loop_filter16(s->dest[0] - 16 * s->linesize - 8, s->linesize, pq);
303 for(j = 0; j < 2; j++) {
304 v->vc1dsp.vc1_h_loop_filter8(s->dest[j+1] - 8 * s->uvlinesize - 8, s->uvlinesize, pq);
309 if (s->mb_x == s->mb_width - 1) {
311 v->vc1dsp.vc1_h_loop_filter16(s->dest[0] - 16 * s->linesize, s->linesize, pq);
312 v->vc1dsp.vc1_h_loop_filter16(s->dest[0] - 16 * s->linesize + 8, s->linesize, pq);
314 for(j = 0; j < 2; j++) {
315 v->vc1dsp.vc1_h_loop_filter8(s->dest[j+1] - 8 * s->uvlinesize, s->uvlinesize, pq);
323 static void vc1_smooth_overlap_filter_iblk(VC1Context *v)
325 MpegEncContext *s = &v->s;
328 if (v->condover == CONDOVER_NONE)
331 mb_pos = s->mb_x + s->mb_y * s->mb_stride;
333 /* Within a MB, the horizontal overlap always runs before the vertical.
334 * To accomplish that, we run the H on left and internal borders of the
335 * currently decoded MB. Then, we wait for the next overlap iteration
336 * to do H overlap on the right edge of this MB, before moving over and
337 * running the V overlap. Therefore, the V overlap makes us trail by one
338 * MB col and the H overlap filter makes us trail by one MB row. This
339 * is reflected in the time at which we run the put_pixels loop. */
340 if(v->condover == CONDOVER_ALL || v->pq >= 9 || v->over_flags_plane[mb_pos]) {
341 if(s->mb_x && (v->condover == CONDOVER_ALL || v->pq >= 9 ||
342 v->over_flags_plane[mb_pos - 1])) {
343 v->vc1dsp.vc1_h_s_overlap(v->block[v->left_blk_idx][1],
344 v->block[v->cur_blk_idx][0]);
345 v->vc1dsp.vc1_h_s_overlap(v->block[v->left_blk_idx][3],
346 v->block[v->cur_blk_idx][2]);
347 if(!(s->flags & CODEC_FLAG_GRAY)) {
348 v->vc1dsp.vc1_h_s_overlap(v->block[v->left_blk_idx][4],
349 v->block[v->cur_blk_idx][4]);
350 v->vc1dsp.vc1_h_s_overlap(v->block[v->left_blk_idx][5],
351 v->block[v->cur_blk_idx][5]);
354 v->vc1dsp.vc1_h_s_overlap(v->block[v->cur_blk_idx][0],
355 v->block[v->cur_blk_idx][1]);
356 v->vc1dsp.vc1_h_s_overlap(v->block[v->cur_blk_idx][2],
357 v->block[v->cur_blk_idx][3]);
359 if (s->mb_x == s->mb_width - 1) {
360 if(!s->first_slice_line && (v->condover == CONDOVER_ALL || v->pq >= 9 ||
361 v->over_flags_plane[mb_pos - s->mb_stride])) {
362 v->vc1dsp.vc1_v_s_overlap(v->block[v->top_blk_idx][2],
363 v->block[v->cur_blk_idx][0]);
364 v->vc1dsp.vc1_v_s_overlap(v->block[v->top_blk_idx][3],
365 v->block[v->cur_blk_idx][1]);
366 if(!(s->flags & CODEC_FLAG_GRAY)) {
367 v->vc1dsp.vc1_v_s_overlap(v->block[v->top_blk_idx][4],
368 v->block[v->cur_blk_idx][4]);
369 v->vc1dsp.vc1_v_s_overlap(v->block[v->top_blk_idx][5],
370 v->block[v->cur_blk_idx][5]);
373 v->vc1dsp.vc1_v_s_overlap(v->block[v->cur_blk_idx][0],
374 v->block[v->cur_blk_idx][2]);
375 v->vc1dsp.vc1_v_s_overlap(v->block[v->cur_blk_idx][1],
376 v->block[v->cur_blk_idx][3]);
379 if (s->mb_x && (v->condover == CONDOVER_ALL || v->over_flags_plane[mb_pos - 1])) {
380 if(!s->first_slice_line && (v->condover == CONDOVER_ALL || v->pq >= 9 ||
381 v->over_flags_plane[mb_pos - s->mb_stride - 1])) {
382 v->vc1dsp.vc1_v_s_overlap(v->block[v->topleft_blk_idx][2],
383 v->block[v->left_blk_idx][0]);
384 v->vc1dsp.vc1_v_s_overlap(v->block[v->topleft_blk_idx][3],
385 v->block[v->left_blk_idx][1]);
386 if(!(s->flags & CODEC_FLAG_GRAY)) {
387 v->vc1dsp.vc1_v_s_overlap(v->block[v->topleft_blk_idx][4],
388 v->block[v->left_blk_idx][4]);
389 v->vc1dsp.vc1_v_s_overlap(v->block[v->topleft_blk_idx][5],
390 v->block[v->left_blk_idx][5]);
393 v->vc1dsp.vc1_v_s_overlap(v->block[v->left_blk_idx][0],
394 v->block[v->left_blk_idx][2]);
395 v->vc1dsp.vc1_v_s_overlap(v->block[v->left_blk_idx][1],
396 v->block[v->left_blk_idx][3]);
400 /** Do motion compensation over 1 macroblock
401 * Mostly adapted hpel_motion and qpel_motion from mpegvideo.c
403 static void vc1_mc_1mv(VC1Context *v, int dir)
405 MpegEncContext *s = &v->s;
406 DSPContext *dsp = &v->s.dsp;
407 uint8_t *srcY, *srcU, *srcV;
408 int dxy, mx, my, uvmx, uvmy, src_x, src_y, uvsrc_x, uvsrc_y;
410 if(!v->s.last_picture.f.data[0])return;
412 mx = s->mv[dir][0][0];
413 my = s->mv[dir][0][1];
415 // store motion vectors for further use in B frames
416 if(s->pict_type == AV_PICTURE_TYPE_P) {
417 s->current_picture.f.motion_val[1][s->block_index[0]][0] = mx;
418 s->current_picture.f.motion_val[1][s->block_index[0]][1] = my;
420 uvmx = (mx + ((mx & 3) == 3)) >> 1;
421 uvmy = (my + ((my & 3) == 3)) >> 1;
422 v->luma_mv[s->mb_x][0] = uvmx;
423 v->luma_mv[s->mb_x][1] = uvmy;
425 uvmx = uvmx + ((uvmx<0)?(uvmx&1):-(uvmx&1));
426 uvmy = uvmy + ((uvmy<0)?(uvmy&1):-(uvmy&1));
429 srcY = s->last_picture.f.data[0];
430 srcU = s->last_picture.f.data[1];
431 srcV = s->last_picture.f.data[2];
433 srcY = s->next_picture.f.data[0];
434 srcU = s->next_picture.f.data[1];
435 srcV = s->next_picture.f.data[2];
438 src_x = s->mb_x * 16 + (mx >> 2);
439 src_y = s->mb_y * 16 + (my >> 2);
440 uvsrc_x = s->mb_x * 8 + (uvmx >> 2);
441 uvsrc_y = s->mb_y * 8 + (uvmy >> 2);
443 if(v->profile != PROFILE_ADVANCED){
444 src_x = av_clip( src_x, -16, s->mb_width * 16);
445 src_y = av_clip( src_y, -16, s->mb_height * 16);
446 uvsrc_x = av_clip(uvsrc_x, -8, s->mb_width * 8);
447 uvsrc_y = av_clip(uvsrc_y, -8, s->mb_height * 8);
449 src_x = av_clip( src_x, -17, s->avctx->coded_width);
450 src_y = av_clip( src_y, -18, s->avctx->coded_height + 1);
451 uvsrc_x = av_clip(uvsrc_x, -8, s->avctx->coded_width >> 1);
452 uvsrc_y = av_clip(uvsrc_y, -8, s->avctx->coded_height >> 1);
455 srcY += src_y * s->linesize + src_x;
456 srcU += uvsrc_y * s->uvlinesize + uvsrc_x;
457 srcV += uvsrc_y * s->uvlinesize + uvsrc_x;
459 /* for grayscale we should not try to read from unknown area */
460 if(s->flags & CODEC_FLAG_GRAY) {
461 srcU = s->edge_emu_buffer + 18 * s->linesize;
462 srcV = s->edge_emu_buffer + 18 * s->linesize;
465 if(v->rangeredfrm || (v->mv_mode == MV_PMODE_INTENSITY_COMP)
466 || (unsigned)(src_x - s->mspel) > s->h_edge_pos - (mx&3) - 16 - s->mspel*3
467 || (unsigned)(src_y - s->mspel) > s->v_edge_pos - (my&3) - 16 - s->mspel*3){
468 uint8_t *uvbuf= s->edge_emu_buffer + 19 * s->linesize;
470 srcY -= s->mspel * (1 + s->linesize);
471 s->dsp.emulated_edge_mc(s->edge_emu_buffer, srcY, s->linesize, 17+s->mspel*2, 17+s->mspel*2,
472 src_x - s->mspel, src_y - s->mspel, s->h_edge_pos, s->v_edge_pos);
473 srcY = s->edge_emu_buffer;
474 s->dsp.emulated_edge_mc(uvbuf , srcU, s->uvlinesize, 8+1, 8+1,
475 uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, s->v_edge_pos >> 1);
476 s->dsp.emulated_edge_mc(uvbuf + 16, srcV, s->uvlinesize, 8+1, 8+1,
477 uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, s->v_edge_pos >> 1);
480 /* if we deal with range reduction we need to scale source blocks */
486 for(j = 0; j < 17 + s->mspel*2; j++) {
487 for(i = 0; i < 17 + s->mspel*2; i++) src[i] = ((src[i] - 128) >> 1) + 128;
490 src = srcU; src2 = srcV;
491 for(j = 0; j < 9; j++) {
492 for(i = 0; i < 9; i++) {
493 src[i] = ((src[i] - 128) >> 1) + 128;
494 src2[i] = ((src2[i] - 128) >> 1) + 128;
496 src += s->uvlinesize;
497 src2 += s->uvlinesize;
500 /* if we deal with intensity compensation we need to scale source blocks */
501 if(v->mv_mode == MV_PMODE_INTENSITY_COMP) {
506 for(j = 0; j < 17 + s->mspel*2; j++) {
507 for(i = 0; i < 17 + s->mspel*2; i++) src[i] = v->luty[src[i]];
510 src = srcU; src2 = srcV;
511 for(j = 0; j < 9; j++) {
512 for(i = 0; i < 9; i++) {
513 src[i] = v->lutuv[src[i]];
514 src2[i] = v->lutuv[src2[i]];
516 src += s->uvlinesize;
517 src2 += s->uvlinesize;
520 srcY += s->mspel * (1 + s->linesize);
524 dxy = ((my & 3) << 2) | (mx & 3);
525 v->vc1dsp.put_vc1_mspel_pixels_tab[dxy](s->dest[0] , srcY , s->linesize, v->rnd);
526 v->vc1dsp.put_vc1_mspel_pixels_tab[dxy](s->dest[0] + 8, srcY + 8, s->linesize, v->rnd);
527 srcY += s->linesize * 8;
528 v->vc1dsp.put_vc1_mspel_pixels_tab[dxy](s->dest[0] + 8 * s->linesize , srcY , s->linesize, v->rnd);
529 v->vc1dsp.put_vc1_mspel_pixels_tab[dxy](s->dest[0] + 8 * s->linesize + 8, srcY + 8, s->linesize, v->rnd);
530 } else { // hpel mc - always used for luma
531 dxy = (my & 2) | ((mx & 2) >> 1);
534 dsp->put_pixels_tab[0][dxy](s->dest[0], srcY, s->linesize, 16);
536 dsp->put_no_rnd_pixels_tab[0][dxy](s->dest[0], srcY, s->linesize, 16);
539 if(s->flags & CODEC_FLAG_GRAY) return;
540 /* Chroma MC always uses qpel bilinear */
544 dsp->put_h264_chroma_pixels_tab[0](s->dest[1], srcU, s->uvlinesize, 8, uvmx, uvmy);
545 dsp->put_h264_chroma_pixels_tab[0](s->dest[2], srcV, s->uvlinesize, 8, uvmx, uvmy);
547 v->vc1dsp.put_no_rnd_vc1_chroma_pixels_tab[0](s->dest[1], srcU, s->uvlinesize, 8, uvmx, uvmy);
548 v->vc1dsp.put_no_rnd_vc1_chroma_pixels_tab[0](s->dest[2], srcV, s->uvlinesize, 8, uvmx, uvmy);
552 /** Do motion compensation for 4-MV macroblock - luminance block
554 static void vc1_mc_4mv_luma(VC1Context *v, int n)
556 MpegEncContext *s = &v->s;
557 DSPContext *dsp = &v->s.dsp;
559 int dxy, mx, my, src_x, src_y;
562 if(!v->s.last_picture.f.data[0])return;
565 srcY = s->last_picture.f.data[0];
567 off = s->linesize * 4 * (n&2) + (n&1) * 8;
569 src_x = s->mb_x * 16 + (n&1) * 8 + (mx >> 2);
570 src_y = s->mb_y * 16 + (n&2) * 4 + (my >> 2);
572 if(v->profile != PROFILE_ADVANCED){
573 src_x = av_clip( src_x, -16, s->mb_width * 16);
574 src_y = av_clip( src_y, -16, s->mb_height * 16);
576 src_x = av_clip( src_x, -17, s->avctx->coded_width);
577 src_y = av_clip( src_y, -18, s->avctx->coded_height + 1);
580 srcY += src_y * s->linesize + src_x;
582 if(v->rangeredfrm || (v->mv_mode == MV_PMODE_INTENSITY_COMP)
583 || (unsigned)(src_x - s->mspel) > s->h_edge_pos - (mx&3) - 8 - s->mspel*2
584 || (unsigned)(src_y - s->mspel) > s->v_edge_pos - (my&3) - 8 - s->mspel*2){
585 srcY -= s->mspel * (1 + s->linesize);
586 s->dsp.emulated_edge_mc(s->edge_emu_buffer, srcY, s->linesize, 9+s->mspel*2, 9+s->mspel*2,
587 src_x - s->mspel, src_y - s->mspel, s->h_edge_pos, s->v_edge_pos);
588 srcY = s->edge_emu_buffer;
589 /* if we deal with range reduction we need to scale source blocks */
595 for(j = 0; j < 9 + s->mspel*2; j++) {
596 for(i = 0; i < 9 + s->mspel*2; i++) src[i] = ((src[i] - 128) >> 1) + 128;
600 /* if we deal with intensity compensation we need to scale source blocks */
601 if(v->mv_mode == MV_PMODE_INTENSITY_COMP) {
606 for(j = 0; j < 9 + s->mspel*2; j++) {
607 for(i = 0; i < 9 + s->mspel*2; i++) src[i] = v->luty[src[i]];
611 srcY += s->mspel * (1 + s->linesize);
615 dxy = ((my & 3) << 2) | (mx & 3);
616 v->vc1dsp.put_vc1_mspel_pixels_tab[dxy](s->dest[0] + off, srcY, s->linesize, v->rnd);
617 } else { // hpel mc - always used for luma
618 dxy = (my & 2) | ((mx & 2) >> 1);
620 dsp->put_pixels_tab[1][dxy](s->dest[0] + off, srcY, s->linesize, 8);
622 dsp->put_no_rnd_pixels_tab[1][dxy](s->dest[0] + off, srcY, s->linesize, 8);
626 static inline int median4(int a, int b, int c, int d)
629 if(c < d) return (FFMIN(b, d) + FFMAX(a, c)) / 2;
630 else return (FFMIN(b, c) + FFMAX(a, d)) / 2;
632 if(c < d) return (FFMIN(a, d) + FFMAX(b, c)) / 2;
633 else return (FFMIN(a, c) + FFMAX(b, d)) / 2;
638 /** Do motion compensation for 4-MV macroblock - both chroma blocks
640 static void vc1_mc_4mv_chroma(VC1Context *v)
642 MpegEncContext *s = &v->s;
643 DSPContext *dsp = &v->s.dsp;
644 uint8_t *srcU, *srcV;
645 int uvmx, uvmy, uvsrc_x, uvsrc_y;
646 int i, idx, tx = 0, ty = 0;
647 int mvx[4], mvy[4], intra[4];
648 static const int count[16] = { 0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4};
650 if(!v->s.last_picture.f.data[0])return;
651 if(s->flags & CODEC_FLAG_GRAY) return;
653 for(i = 0; i < 4; i++) {
654 mvx[i] = s->mv[0][i][0];
655 mvy[i] = s->mv[0][i][1];
656 intra[i] = v->mb_type[0][s->block_index[i]];
659 /* calculate chroma MV vector from four luma MVs */
660 idx = (intra[3] << 3) | (intra[2] << 2) | (intra[1] << 1) | intra[0];
661 if(!idx) { // all blocks are inter
662 tx = median4(mvx[0], mvx[1], mvx[2], mvx[3]);
663 ty = median4(mvy[0], mvy[1], mvy[2], mvy[3]);
664 } else if(count[idx] == 1) { // 3 inter blocks
667 tx = mid_pred(mvx[1], mvx[2], mvx[3]);
668 ty = mid_pred(mvy[1], mvy[2], mvy[3]);
671 tx = mid_pred(mvx[0], mvx[2], mvx[3]);
672 ty = mid_pred(mvy[0], mvy[2], mvy[3]);
675 tx = mid_pred(mvx[0], mvx[1], mvx[3]);
676 ty = mid_pred(mvy[0], mvy[1], mvy[3]);
679 tx = mid_pred(mvx[0], mvx[1], mvx[2]);
680 ty = mid_pred(mvy[0], mvy[1], mvy[2]);
683 } else if(count[idx] == 2) {
685 for(i=0; i<3;i++) if(!intra[i]) {t1 = i; break;}
686 for(i= t1+1; i<4; i++)if(!intra[i]) {t2 = i; break;}
687 tx = (mvx[t1] + mvx[t2]) / 2;
688 ty = (mvy[t1] + mvy[t2]) / 2;
690 s->current_picture.f.motion_val[1][s->block_index[0]][0] = 0;
691 s->current_picture.f.motion_val[1][s->block_index[0]][1] = 0;
692 v->luma_mv[s->mb_x][0] = v->luma_mv[s->mb_x][1] = 0;
693 return; //no need to do MC for inter blocks
696 s->current_picture.f.motion_val[1][s->block_index[0]][0] = tx;
697 s->current_picture.f.motion_val[1][s->block_index[0]][1] = ty;
698 uvmx = (tx + ((tx&3) == 3)) >> 1;
699 uvmy = (ty + ((ty&3) == 3)) >> 1;
700 v->luma_mv[s->mb_x][0] = uvmx;
701 v->luma_mv[s->mb_x][1] = uvmy;
703 uvmx = uvmx + ((uvmx<0)?(uvmx&1):-(uvmx&1));
704 uvmy = uvmy + ((uvmy<0)?(uvmy&1):-(uvmy&1));
707 uvsrc_x = s->mb_x * 8 + (uvmx >> 2);
708 uvsrc_y = s->mb_y * 8 + (uvmy >> 2);
710 if(v->profile != PROFILE_ADVANCED){
711 uvsrc_x = av_clip(uvsrc_x, -8, s->mb_width * 8);
712 uvsrc_y = av_clip(uvsrc_y, -8, s->mb_height * 8);
714 uvsrc_x = av_clip(uvsrc_x, -8, s->avctx->coded_width >> 1);
715 uvsrc_y = av_clip(uvsrc_y, -8, s->avctx->coded_height >> 1);
718 srcU = s->last_picture.f.data[1] + uvsrc_y * s->uvlinesize + uvsrc_x;
719 srcV = s->last_picture.f.data[2] + uvsrc_y * s->uvlinesize + uvsrc_x;
720 if(v->rangeredfrm || (v->mv_mode == MV_PMODE_INTENSITY_COMP)
721 || (unsigned)uvsrc_x > (s->h_edge_pos >> 1) - 9
722 || (unsigned)uvsrc_y > (s->v_edge_pos >> 1) - 9){
723 s->dsp.emulated_edge_mc(s->edge_emu_buffer , srcU, s->uvlinesize, 8+1, 8+1,
724 uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, s->v_edge_pos >> 1);
725 s->dsp.emulated_edge_mc(s->edge_emu_buffer + 16, srcV, s->uvlinesize, 8+1, 8+1,
726 uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, s->v_edge_pos >> 1);
727 srcU = s->edge_emu_buffer;
728 srcV = s->edge_emu_buffer + 16;
730 /* if we deal with range reduction we need to scale source blocks */
735 src = srcU; src2 = srcV;
736 for(j = 0; j < 9; j++) {
737 for(i = 0; i < 9; i++) {
738 src[i] = ((src[i] - 128) >> 1) + 128;
739 src2[i] = ((src2[i] - 128) >> 1) + 128;
741 src += s->uvlinesize;
742 src2 += s->uvlinesize;
745 /* if we deal with intensity compensation we need to scale source blocks */
746 if(v->mv_mode == MV_PMODE_INTENSITY_COMP) {
750 src = srcU; src2 = srcV;
751 for(j = 0; j < 9; j++) {
752 for(i = 0; i < 9; i++) {
753 src[i] = v->lutuv[src[i]];
754 src2[i] = v->lutuv[src2[i]];
756 src += s->uvlinesize;
757 src2 += s->uvlinesize;
762 /* Chroma MC always uses qpel bilinear */
766 dsp->put_h264_chroma_pixels_tab[0](s->dest[1], srcU, s->uvlinesize, 8, uvmx, uvmy);
767 dsp->put_h264_chroma_pixels_tab[0](s->dest[2], srcV, s->uvlinesize, 8, uvmx, uvmy);
769 v->vc1dsp.put_no_rnd_vc1_chroma_pixels_tab[0](s->dest[1], srcU, s->uvlinesize, 8, uvmx, uvmy);
770 v->vc1dsp.put_no_rnd_vc1_chroma_pixels_tab[0](s->dest[2], srcV, s->uvlinesize, 8, uvmx, uvmy);
774 /***********************************************************************/
776 * @name VC-1 Block-level functions
777 * @see 7.1.4, p91 and 8.1.1.7, p(1)04
783 * @brief Get macroblock-level quantizer scale
785 #define GET_MQUANT() \
789 if (v->dqprofile == DQPROFILE_ALL_MBS) \
793 mquant = (get_bits1(gb)) ? v->altpq : v->pq; \
797 mqdiff = get_bits(gb, 3); \
798 if (mqdiff != 7) mquant = v->pq + mqdiff; \
799 else mquant = get_bits(gb, 5); \
802 if(v->dqprofile == DQPROFILE_SINGLE_EDGE) \
803 edges = 1 << v->dqsbedge; \
804 else if(v->dqprofile == DQPROFILE_DOUBLE_EDGES) \
805 edges = (3 << v->dqsbedge) % 15; \
806 else if(v->dqprofile == DQPROFILE_FOUR_EDGES) \
808 if((edges&1) && !s->mb_x) \
810 if((edges&2) && s->first_slice_line) \
812 if((edges&4) && s->mb_x == (s->mb_width - 1)) \
814 if((edges&8) && s->mb_y == (s->mb_height - 1)) \
819 * @def GET_MVDATA(_dmv_x, _dmv_y)
820 * @brief Get MV differentials
821 * @see MVDATA decoding from 8.3.5.2, p(1)20
822 * @param _dmv_x Horizontal differential for decoded MV
823 * @param _dmv_y Vertical differential for decoded MV
825 #define GET_MVDATA(_dmv_x, _dmv_y) \
826 index = 1 + get_vlc2(gb, ff_vc1_mv_diff_vlc[s->mv_table_index].table,\
827 VC1_MV_DIFF_VLC_BITS, 2); \
833 else mb_has_coeffs = 0; \
835 if (!index) { _dmv_x = _dmv_y = 0; } \
836 else if (index == 35) \
838 _dmv_x = get_bits(gb, v->k_x - 1 + s->quarter_sample); \
839 _dmv_y = get_bits(gb, v->k_y - 1 + s->quarter_sample); \
841 else if (index == 36) \
850 if (!s->quarter_sample && index1 == 5) val = 1; \
852 if(size_table[index1] - val > 0) \
853 val = get_bits(gb, size_table[index1] - val); \
855 sign = 0 - (val&1); \
856 _dmv_x = (sign ^ ((val>>1) + offset_table[index1])) - sign; \
859 if (!s->quarter_sample && index1 == 5) val = 1; \
861 if(size_table[index1] - val > 0) \
862 val = get_bits(gb, size_table[index1] - val); \
864 sign = 0 - (val&1); \
865 _dmv_y = (sign ^ ((val>>1) + offset_table[index1])) - sign; \
868 /** Predict and set motion vector
870 static inline void vc1_pred_mv(VC1Context *v, int n, int dmv_x, int dmv_y, int mv1, int r_x, int r_y, uint8_t* is_intra)
872 MpegEncContext *s = &v->s;
873 int xy, wrap, off = 0;
878 /* scale MV difference to be quad-pel */
879 dmv_x <<= 1 - s->quarter_sample;
880 dmv_y <<= 1 - s->quarter_sample;
883 xy = s->block_index[n];
886 s->mv[0][n][0] = s->current_picture.f.motion_val[0][xy][0] = 0;
887 s->mv[0][n][1] = s->current_picture.f.motion_val[0][xy][1] = 0;
888 s->current_picture.f.motion_val[1][xy][0] = 0;
889 s->current_picture.f.motion_val[1][xy][1] = 0;
890 if(mv1) { /* duplicate motion data for 1-MV block */
891 s->current_picture.f.motion_val[0][xy + 1][0] = 0;
892 s->current_picture.f.motion_val[0][xy + 1][1] = 0;
893 s->current_picture.f.motion_val[0][xy + wrap][0] = 0;
894 s->current_picture.f.motion_val[0][xy + wrap][1] = 0;
895 s->current_picture.f.motion_val[0][xy + wrap + 1][0] = 0;
896 s->current_picture.f.motion_val[0][xy + wrap + 1][1] = 0;
897 v->luma_mv[s->mb_x][0] = v->luma_mv[s->mb_x][1] = 0;
898 s->current_picture.f.motion_val[1][xy + 1][0] = 0;
899 s->current_picture.f.motion_val[1][xy + 1][1] = 0;
900 s->current_picture.f.motion_val[1][xy + wrap][0] = 0;
901 s->current_picture.f.motion_val[1][xy + wrap][1] = 0;
902 s->current_picture.f.motion_val[1][xy + wrap + 1][0] = 0;
903 s->current_picture.f.motion_val[1][xy + wrap + 1][1] = 0;
908 C = s->current_picture.f.motion_val[0][xy - 1];
909 A = s->current_picture.f.motion_val[0][xy - wrap];
911 off = (s->mb_x == (s->mb_width - 1)) ? -1 : 2;
913 //in 4-MV mode different blocks have different B predictor position
916 off = (s->mb_x > 0) ? -1 : 1;
919 off = (s->mb_x == (s->mb_width - 1)) ? -1 : 1;
928 B = s->current_picture.f.motion_val[0][xy - wrap + off];
930 if(!s->first_slice_line || (n==2 || n==3)) { // predictor A is not out of bounds
931 if(s->mb_width == 1) {
935 px = mid_pred(A[0], B[0], C[0]);
936 py = mid_pred(A[1], B[1], C[1]);
938 } else if(s->mb_x || (n==1 || n==3)) { // predictor C is not out of bounds
944 /* Pullback MV as specified in 8.3.5.3.4 */
947 qx = (s->mb_x << 6) + ((n==1 || n==3) ? 32 : 0);
948 qy = (s->mb_y << 6) + ((n==2 || n==3) ? 32 : 0);
949 X = (s->mb_width << 6) - 4;
950 Y = (s->mb_height << 6) - 4;
952 if(qx + px < -60) px = -60 - qx;
953 if(qy + py < -60) py = -60 - qy;
955 if(qx + px < -28) px = -28 - qx;
956 if(qy + py < -28) py = -28 - qy;
958 if(qx + px > X) px = X - qx;
959 if(qy + py > Y) py = Y - qy;
961 /* Calculate hybrid prediction as specified in 8.3.5.3.5 */
962 if((!s->first_slice_line || (n==2 || n==3)) && (s->mb_x || (n==1 || n==3))) {
963 if(is_intra[xy - wrap])
964 sum = FFABS(px) + FFABS(py);
966 sum = FFABS(px - A[0]) + FFABS(py - A[1]);
968 if(get_bits1(&s->gb)) {
977 sum = FFABS(px) + FFABS(py);
979 sum = FFABS(px - C[0]) + FFABS(py - C[1]);
981 if(get_bits1(&s->gb)) {
991 /* store MV using signed modulus of MV range defined in 4.11 */
992 s->mv[0][n][0] = s->current_picture.f.motion_val[0][xy][0] = ((px + dmv_x + r_x) & ((r_x << 1) - 1)) - r_x;
993 s->mv[0][n][1] = s->current_picture.f.motion_val[0][xy][1] = ((py + dmv_y + r_y) & ((r_y << 1) - 1)) - r_y;
994 if(mv1) { /* duplicate motion data for 1-MV block */
995 s->current_picture.f.motion_val[0][xy + 1][0] = s->current_picture.f.motion_val[0][xy][0];
996 s->current_picture.f.motion_val[0][xy + 1][1] = s->current_picture.f.motion_val[0][xy][1];
997 s->current_picture.f.motion_val[0][xy + wrap][0] = s->current_picture.f.motion_val[0][xy][0];
998 s->current_picture.f.motion_val[0][xy + wrap][1] = s->current_picture.f.motion_val[0][xy][1];
999 s->current_picture.f.motion_val[0][xy + wrap + 1][0] = s->current_picture.f.motion_val[0][xy][0];
1000 s->current_picture.f.motion_val[0][xy + wrap + 1][1] = s->current_picture.f.motion_val[0][xy][1];
1004 /** Motion compensation for direct or interpolated blocks in B-frames
1006 static void vc1_interp_mc(VC1Context *v)
1008 MpegEncContext *s = &v->s;
1009 DSPContext *dsp = &v->s.dsp;
1010 uint8_t *srcY, *srcU, *srcV;
1011 int dxy, mx, my, uvmx, uvmy, src_x, src_y, uvsrc_x, uvsrc_y;
1013 if(!v->s.next_picture.f.data[0])return;
1015 mx = s->mv[1][0][0];
1016 my = s->mv[1][0][1];
1017 uvmx = (mx + ((mx & 3) == 3)) >> 1;
1018 uvmy = (my + ((my & 3) == 3)) >> 1;
1020 uvmx = uvmx + ((uvmx<0)?-(uvmx&1):(uvmx&1));
1021 uvmy = uvmy + ((uvmy<0)?-(uvmy&1):(uvmy&1));
1023 srcY = s->next_picture.f.data[0];
1024 srcU = s->next_picture.f.data[1];
1025 srcV = s->next_picture.f.data[2];
1027 src_x = s->mb_x * 16 + (mx >> 2);
1028 src_y = s->mb_y * 16 + (my >> 2);
1029 uvsrc_x = s->mb_x * 8 + (uvmx >> 2);
1030 uvsrc_y = s->mb_y * 8 + (uvmy >> 2);
1032 if(v->profile != PROFILE_ADVANCED){
1033 src_x = av_clip( src_x, -16, s->mb_width * 16);
1034 src_y = av_clip( src_y, -16, s->mb_height * 16);
1035 uvsrc_x = av_clip(uvsrc_x, -8, s->mb_width * 8);
1036 uvsrc_y = av_clip(uvsrc_y, -8, s->mb_height * 8);
1038 src_x = av_clip( src_x, -17, s->avctx->coded_width);
1039 src_y = av_clip( src_y, -18, s->avctx->coded_height + 1);
1040 uvsrc_x = av_clip(uvsrc_x, -8, s->avctx->coded_width >> 1);
1041 uvsrc_y = av_clip(uvsrc_y, -8, s->avctx->coded_height >> 1);
1044 srcY += src_y * s->linesize + src_x;
1045 srcU += uvsrc_y * s->uvlinesize + uvsrc_x;
1046 srcV += uvsrc_y * s->uvlinesize + uvsrc_x;
1048 /* for grayscale we should not try to read from unknown area */
1049 if(s->flags & CODEC_FLAG_GRAY) {
1050 srcU = s->edge_emu_buffer + 18 * s->linesize;
1051 srcV = s->edge_emu_buffer + 18 * s->linesize;
1055 || (unsigned)(src_x - s->mspel) > s->h_edge_pos - (mx&3) - 16 - s->mspel*3
1056 || (unsigned)(src_y - s->mspel) > s->v_edge_pos - (my&3) - 16 - s->mspel*3){
1057 uint8_t *uvbuf= s->edge_emu_buffer + 19 * s->linesize;
1059 srcY -= s->mspel * (1 + s->linesize);
1060 s->dsp.emulated_edge_mc(s->edge_emu_buffer, srcY, s->linesize, 17+s->mspel*2, 17+s->mspel*2,
1061 src_x - s->mspel, src_y - s->mspel, s->h_edge_pos, s->v_edge_pos);
1062 srcY = s->edge_emu_buffer;
1063 s->dsp.emulated_edge_mc(uvbuf , srcU, s->uvlinesize, 8+1, 8+1,
1064 uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, s->v_edge_pos >> 1);
1065 s->dsp.emulated_edge_mc(uvbuf + 16, srcV, s->uvlinesize, 8+1, 8+1,
1066 uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, s->v_edge_pos >> 1);
1069 /* if we deal with range reduction we need to scale source blocks */
1070 if(v->rangeredfrm) {
1072 uint8_t *src, *src2;
1075 for(j = 0; j < 17 + s->mspel*2; j++) {
1076 for(i = 0; i < 17 + s->mspel*2; i++) src[i] = ((src[i] - 128) >> 1) + 128;
1079 src = srcU; src2 = srcV;
1080 for(j = 0; j < 9; j++) {
1081 for(i = 0; i < 9; i++) {
1082 src[i] = ((src[i] - 128) >> 1) + 128;
1083 src2[i] = ((src2[i] - 128) >> 1) + 128;
1085 src += s->uvlinesize;
1086 src2 += s->uvlinesize;
1089 srcY += s->mspel * (1 + s->linesize);
1093 dxy = ((my & 3) << 2) | (mx & 3);
1094 v->vc1dsp.avg_vc1_mspel_pixels_tab[dxy](s->dest[0] , srcY , s->linesize, v->rnd);
1095 v->vc1dsp.avg_vc1_mspel_pixels_tab[dxy](s->dest[0] + 8, srcY + 8, s->linesize, v->rnd);
1096 srcY += s->linesize * 8;
1097 v->vc1dsp.avg_vc1_mspel_pixels_tab[dxy](s->dest[0] + 8 * s->linesize , srcY , s->linesize, v->rnd);
1098 v->vc1dsp.avg_vc1_mspel_pixels_tab[dxy](s->dest[0] + 8 * s->linesize + 8, srcY + 8, s->linesize, v->rnd);
1100 dxy = (my & 2) | ((mx & 2) >> 1);
1103 dsp->avg_pixels_tab[0][dxy](s->dest[0], srcY, s->linesize, 16);
1105 dsp->avg_no_rnd_pixels_tab[0][dxy](s->dest[0], srcY, s->linesize, 16);
1108 if(s->flags & CODEC_FLAG_GRAY) return;
1109 /* Chroma MC always uses qpel blilinear */
1113 dsp->avg_h264_chroma_pixels_tab[0](s->dest[1], srcU, s->uvlinesize, 8, uvmx, uvmy);
1114 dsp->avg_h264_chroma_pixels_tab[0](s->dest[2], srcV, s->uvlinesize, 8, uvmx, uvmy);
1116 v->vc1dsp.avg_no_rnd_vc1_chroma_pixels_tab[0](s->dest[1], srcU, s->uvlinesize, 8, uvmx, uvmy);
1117 v->vc1dsp.avg_no_rnd_vc1_chroma_pixels_tab[0](s->dest[2], srcV, s->uvlinesize, 8, uvmx, uvmy);
1121 static av_always_inline int scale_mv(int value, int bfrac, int inv, int qs)
1125 #if B_FRACTION_DEN==256
1129 return 2 * ((value * n + 255) >> 9);
1130 return (value * n + 128) >> 8;
1133 n -= B_FRACTION_DEN;
1135 return 2 * ((value * n + B_FRACTION_DEN - 1) / (2 * B_FRACTION_DEN));
1136 return (value * n + B_FRACTION_DEN/2) / B_FRACTION_DEN;
1140 /** Reconstruct motion vector for B-frame and do motion compensation
1142 static inline void vc1_b_mc(VC1Context *v, int dmv_x[2], int dmv_y[2], int direct, int mode)
1145 v->mv_mode2 = v->mv_mode;
1146 v->mv_mode = MV_PMODE_INTENSITY_COMP;
1151 if(v->use_ic) v->mv_mode = v->mv_mode2;
1154 if(mode == BMV_TYPE_INTERPOLATED) {
1157 if(v->use_ic) v->mv_mode = v->mv_mode2;
1161 if(v->use_ic && (mode == BMV_TYPE_BACKWARD)) v->mv_mode = v->mv_mode2;
1162 vc1_mc_1mv(v, (mode == BMV_TYPE_BACKWARD));
1163 if(v->use_ic) v->mv_mode = v->mv_mode2;
1166 static inline void vc1_pred_b_mv(VC1Context *v, int dmv_x[2], int dmv_y[2], int direct, int mvtype)
1168 MpegEncContext *s = &v->s;
1169 int xy, wrap, off = 0;
1174 const uint8_t *is_intra = v->mb_type[0];
1178 /* scale MV difference to be quad-pel */
1179 dmv_x[0] <<= 1 - s->quarter_sample;
1180 dmv_y[0] <<= 1 - s->quarter_sample;
1181 dmv_x[1] <<= 1 - s->quarter_sample;
1182 dmv_y[1] <<= 1 - s->quarter_sample;
1184 wrap = s->b8_stride;
1185 xy = s->block_index[0];
1188 s->current_picture.f.motion_val[0][xy][0] =
1189 s->current_picture.f.motion_val[0][xy][1] =
1190 s->current_picture.f.motion_val[1][xy][0] =
1191 s->current_picture.f.motion_val[1][xy][1] = 0;
1194 s->mv[0][0][0] = scale_mv(s->next_picture.f.motion_val[1][xy][0], v->bfraction, 0, s->quarter_sample);
1195 s->mv[0][0][1] = scale_mv(s->next_picture.f.motion_val[1][xy][1], v->bfraction, 0, s->quarter_sample);
1196 s->mv[1][0][0] = scale_mv(s->next_picture.f.motion_val[1][xy][0], v->bfraction, 1, s->quarter_sample);
1197 s->mv[1][0][1] = scale_mv(s->next_picture.f.motion_val[1][xy][1], v->bfraction, 1, s->quarter_sample);
1199 /* Pullback predicted motion vectors as specified in 8.4.5.4 */
1200 s->mv[0][0][0] = av_clip(s->mv[0][0][0], -60 - (s->mb_x << 6), (s->mb_width << 6) - 4 - (s->mb_x << 6));
1201 s->mv[0][0][1] = av_clip(s->mv[0][0][1], -60 - (s->mb_y << 6), (s->mb_height << 6) - 4 - (s->mb_y << 6));
1202 s->mv[1][0][0] = av_clip(s->mv[1][0][0], -60 - (s->mb_x << 6), (s->mb_width << 6) - 4 - (s->mb_x << 6));
1203 s->mv[1][0][1] = av_clip(s->mv[1][0][1], -60 - (s->mb_y << 6), (s->mb_height << 6) - 4 - (s->mb_y << 6));
1205 s->current_picture.f.motion_val[0][xy][0] = s->mv[0][0][0];
1206 s->current_picture.f.motion_val[0][xy][1] = s->mv[0][0][1];
1207 s->current_picture.f.motion_val[1][xy][0] = s->mv[1][0][0];
1208 s->current_picture.f.motion_val[1][xy][1] = s->mv[1][0][1];
1212 if((mvtype == BMV_TYPE_FORWARD) || (mvtype == BMV_TYPE_INTERPOLATED)) {
1213 C = s->current_picture.f.motion_val[0][xy - 2];
1214 A = s->current_picture.f.motion_val[0][xy - wrap*2];
1215 off = (s->mb_x == (s->mb_width - 1)) ? -2 : 2;
1216 B = s->current_picture.f.motion_val[0][xy - wrap*2 + off];
1218 if(!s->mb_x) C[0] = C[1] = 0;
1219 if(!s->first_slice_line) { // predictor A is not out of bounds
1220 if(s->mb_width == 1) {
1224 px = mid_pred(A[0], B[0], C[0]);
1225 py = mid_pred(A[1], B[1], C[1]);
1227 } else if(s->mb_x) { // predictor C is not out of bounds
1233 /* Pullback MV as specified in 8.3.5.3.4 */
1236 if(v->profile < PROFILE_ADVANCED) {
1237 qx = (s->mb_x << 5);
1238 qy = (s->mb_y << 5);
1239 X = (s->mb_width << 5) - 4;
1240 Y = (s->mb_height << 5) - 4;
1241 if(qx + px < -28) px = -28 - qx;
1242 if(qy + py < -28) py = -28 - qy;
1243 if(qx + px > X) px = X - qx;
1244 if(qy + py > Y) py = Y - qy;
1246 qx = (s->mb_x << 6);
1247 qy = (s->mb_y << 6);
1248 X = (s->mb_width << 6) - 4;
1249 Y = (s->mb_height << 6) - 4;
1250 if(qx + px < -60) px = -60 - qx;
1251 if(qy + py < -60) py = -60 - qy;
1252 if(qx + px > X) px = X - qx;
1253 if(qy + py > Y) py = Y - qy;
1256 /* Calculate hybrid prediction as specified in 8.3.5.3.5 */
1257 if(0 && !s->first_slice_line && s->mb_x) {
1258 if(is_intra[xy - wrap])
1259 sum = FFABS(px) + FFABS(py);
1261 sum = FFABS(px - A[0]) + FFABS(py - A[1]);
1263 if(get_bits1(&s->gb)) {
1271 if(is_intra[xy - 2])
1272 sum = FFABS(px) + FFABS(py);
1274 sum = FFABS(px - C[0]) + FFABS(py - C[1]);
1276 if(get_bits1(&s->gb)) {
1286 /* store MV using signed modulus of MV range defined in 4.11 */
1287 s->mv[0][0][0] = ((px + dmv_x[0] + r_x) & ((r_x << 1) - 1)) - r_x;
1288 s->mv[0][0][1] = ((py + dmv_y[0] + r_y) & ((r_y << 1) - 1)) - r_y;
1290 if((mvtype == BMV_TYPE_BACKWARD) || (mvtype == BMV_TYPE_INTERPOLATED)) {
1291 C = s->current_picture.f.motion_val[1][xy - 2];
1292 A = s->current_picture.f.motion_val[1][xy - wrap*2];
1293 off = (s->mb_x == (s->mb_width - 1)) ? -2 : 2;
1294 B = s->current_picture.f.motion_val[1][xy - wrap*2 + off];
1296 if(!s->mb_x) C[0] = C[1] = 0;
1297 if(!s->first_slice_line) { // predictor A is not out of bounds
1298 if(s->mb_width == 1) {
1302 px = mid_pred(A[0], B[0], C[0]);
1303 py = mid_pred(A[1], B[1], C[1]);
1305 } else if(s->mb_x) { // predictor C is not out of bounds
1311 /* Pullback MV as specified in 8.3.5.3.4 */
1314 if(v->profile < PROFILE_ADVANCED) {
1315 qx = (s->mb_x << 5);
1316 qy = (s->mb_y << 5);
1317 X = (s->mb_width << 5) - 4;
1318 Y = (s->mb_height << 5) - 4;
1319 if(qx + px < -28) px = -28 - qx;
1320 if(qy + py < -28) py = -28 - qy;
1321 if(qx + px > X) px = X - qx;
1322 if(qy + py > Y) py = Y - qy;
1324 qx = (s->mb_x << 6);
1325 qy = (s->mb_y << 6);
1326 X = (s->mb_width << 6) - 4;
1327 Y = (s->mb_height << 6) - 4;
1328 if(qx + px < -60) px = -60 - qx;
1329 if(qy + py < -60) py = -60 - qy;
1330 if(qx + px > X) px = X - qx;
1331 if(qy + py > Y) py = Y - qy;
1334 /* Calculate hybrid prediction as specified in 8.3.5.3.5 */
1335 if(0 && !s->first_slice_line && s->mb_x) {
1336 if(is_intra[xy - wrap])
1337 sum = FFABS(px) + FFABS(py);
1339 sum = FFABS(px - A[0]) + FFABS(py - A[1]);
1341 if(get_bits1(&s->gb)) {
1349 if(is_intra[xy - 2])
1350 sum = FFABS(px) + FFABS(py);
1352 sum = FFABS(px - C[0]) + FFABS(py - C[1]);
1354 if(get_bits1(&s->gb)) {
1364 /* store MV using signed modulus of MV range defined in 4.11 */
1366 s->mv[1][0][0] = ((px + dmv_x[1] + r_x) & ((r_x << 1) - 1)) - r_x;
1367 s->mv[1][0][1] = ((py + dmv_y[1] + r_y) & ((r_y << 1) - 1)) - r_y;
1369 s->current_picture.f.motion_val[0][xy][0] = s->mv[0][0][0];
1370 s->current_picture.f.motion_val[0][xy][1] = s->mv[0][0][1];
1371 s->current_picture.f.motion_val[1][xy][0] = s->mv[1][0][0];
1372 s->current_picture.f.motion_val[1][xy][1] = s->mv[1][0][1];
1375 /** Get predicted DC value for I-frames only
1376 * prediction dir: left=0, top=1
1377 * @param s MpegEncContext
1378 * @param overlap flag indicating that overlap filtering is used
1379 * @param pq integer part of picture quantizer
1380 * @param[in] n block index in the current MB
1381 * @param dc_val_ptr Pointer to DC predictor
1382 * @param dir_ptr Prediction direction for use in AC prediction
1384 static inline int vc1_i_pred_dc(MpegEncContext *s, int overlap, int pq, int n,
1385 int16_t **dc_val_ptr, int *dir_ptr)
1387 int a, b, c, wrap, pred, scale;
1389 static const uint16_t dcpred[32] = {
1390 -1, 1024, 512, 341, 256, 205, 171, 146, 128,
1391 114, 102, 93, 85, 79, 73, 68, 64,
1392 60, 57, 54, 51, 49, 47, 45, 43,
1393 41, 39, 38, 37, 35, 34, 33
1396 /* find prediction - wmv3_dc_scale always used here in fact */
1397 if (n < 4) scale = s->y_dc_scale;
1398 else scale = s->c_dc_scale;
1400 wrap = s->block_wrap[n];
1401 dc_val= s->dc_val[0] + s->block_index[n];
1407 b = dc_val[ - 1 - wrap];
1408 a = dc_val[ - wrap];
1410 if (pq < 9 || !overlap)
1412 /* Set outer values */
1413 if (s->first_slice_line && (n!=2 && n!=3)) b=a=dcpred[scale];
1414 if (s->mb_x == 0 && (n!=1 && n!=3)) b=c=dcpred[scale];
1418 /* Set outer values */
1419 if (s->first_slice_line && (n!=2 && n!=3)) b=a=0;
1420 if (s->mb_x == 0 && (n!=1 && n!=3)) b=c=0;
1423 if (abs(a - b) <= abs(b - c)) {
1431 /* update predictor */
1432 *dc_val_ptr = &dc_val[0];
1437 /** Get predicted DC value
1438 * prediction dir: left=0, top=1
1439 * @param s MpegEncContext
1440 * @param overlap flag indicating that overlap filtering is used
1441 * @param pq integer part of picture quantizer
1442 * @param[in] n block index in the current MB
1443 * @param a_avail flag indicating top block availability
1444 * @param c_avail flag indicating left block availability
1445 * @param dc_val_ptr Pointer to DC predictor
1446 * @param dir_ptr Prediction direction for use in AC prediction
1448 static inline int vc1_pred_dc(MpegEncContext *s, int overlap, int pq, int n,
1449 int a_avail, int c_avail,
1450 int16_t **dc_val_ptr, int *dir_ptr)
1452 int a, b, c, wrap, pred;
1454 int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
1457 wrap = s->block_wrap[n];
1458 dc_val= s->dc_val[0] + s->block_index[n];
1464 b = dc_val[ - 1 - wrap];
1465 a = dc_val[ - wrap];
1466 /* scale predictors if needed */
1467 q1 = s->current_picture.f.qscale_table[mb_pos];
1468 if(c_avail && (n!= 1 && n!=3)) {
1469 q2 = s->current_picture.f.qscale_table[mb_pos - 1];
1471 c = (c * s->y_dc_scale_table[q2] * ff_vc1_dqscale[s->y_dc_scale_table[q1] - 1] + 0x20000) >> 18;
1473 if(a_avail && (n!= 2 && n!=3)) {
1474 q2 = s->current_picture.f.qscale_table[mb_pos - s->mb_stride];
1476 a = (a * s->y_dc_scale_table[q2] * ff_vc1_dqscale[s->y_dc_scale_table[q1] - 1] + 0x20000) >> 18;
1478 if(a_avail && c_avail && (n!=3)) {
1481 if(n != 2) off -= s->mb_stride;
1482 q2 = s->current_picture.f.qscale_table[off];
1484 b = (b * s->y_dc_scale_table[q2] * ff_vc1_dqscale[s->y_dc_scale_table[q1] - 1] + 0x20000) >> 18;
1487 if(a_avail && c_avail) {
1488 if(abs(a - b) <= abs(b - c)) {
1495 } else if(a_avail) {
1498 } else if(c_avail) {
1506 /* update predictor */
1507 *dc_val_ptr = &dc_val[0];
1511 /** @} */ // Block group
1514 * @name VC1 Macroblock-level functions in Simple/Main Profiles
1515 * @see 7.1.4, p91 and 8.1.1.7, p(1)04
1519 static inline int vc1_coded_block_pred(MpegEncContext * s, int n, uint8_t **coded_block_ptr)
1521 int xy, wrap, pred, a, b, c;
1523 xy = s->block_index[n];
1524 wrap = s->b8_stride;
1529 a = s->coded_block[xy - 1 ];
1530 b = s->coded_block[xy - 1 - wrap];
1531 c = s->coded_block[xy - wrap];
1540 *coded_block_ptr = &s->coded_block[xy];
1546 * Decode one AC coefficient
1547 * @param v The VC1 context
1548 * @param last Last coefficient
1549 * @param skip How much zero coefficients to skip
1550 * @param value Decoded AC coefficient value
1551 * @param codingset set of VLC to decode data
1554 static void vc1_decode_ac_coeff(VC1Context *v, int *last, int *skip, int *value, int codingset)
1556 GetBitContext *gb = &v->s.gb;
1557 int index, escape, run = 0, level = 0, lst = 0;
1559 index = get_vlc2(gb, ff_vc1_ac_coeff_table[codingset].table, AC_VLC_BITS, 3);
1560 if (index != vc1_ac_sizes[codingset] - 1) {
1561 run = vc1_index_decode_table[codingset][index][0];
1562 level = vc1_index_decode_table[codingset][index][1];
1563 lst = index >= vc1_last_decode_table[codingset] || get_bits_left(gb) < 0;
1567 escape = decode210(gb);
1569 index = get_vlc2(gb, ff_vc1_ac_coeff_table[codingset].table, AC_VLC_BITS, 3);
1570 run = vc1_index_decode_table[codingset][index][0];
1571 level = vc1_index_decode_table[codingset][index][1];
1572 lst = index >= vc1_last_decode_table[codingset];
1575 level += vc1_last_delta_level_table[codingset][run];
1577 level += vc1_delta_level_table[codingset][run];
1580 run += vc1_last_delta_run_table[codingset][level] + 1;
1582 run += vc1_delta_run_table[codingset][level] + 1;
1588 lst = get_bits1(gb);
1589 if(v->s.esc3_level_length == 0) {
1590 if(v->pq < 8 || v->dquantfrm) { // table 59
1591 v->s.esc3_level_length = get_bits(gb, 3);
1592 if(!v->s.esc3_level_length)
1593 v->s.esc3_level_length = get_bits(gb, 2) + 8;
1595 v->s.esc3_level_length = get_unary(gb, 1, 6) + 2;
1597 v->s.esc3_run_length = 3 + get_bits(gb, 2);
1599 run = get_bits(gb, v->s.esc3_run_length);
1600 sign = get_bits1(gb);
1601 level = get_bits(gb, v->s.esc3_level_length);
1612 /** Decode intra block in intra frames - should be faster than decode_intra_block
1613 * @param v VC1Context
1614 * @param block block to decode
1615 * @param[in] n subblock index
1616 * @param coded are AC coeffs present or not
1617 * @param codingset set of VLC to decode data
1619 static int vc1_decode_i_block(VC1Context *v, DCTELEM block[64], int n, int coded, int codingset)
1621 GetBitContext *gb = &v->s.gb;
1622 MpegEncContext *s = &v->s;
1623 int dc_pred_dir = 0; /* Direction of the DC prediction used */
1626 int16_t *ac_val, *ac_val2;
1629 /* Get DC differential */
1631 dcdiff = get_vlc2(&s->gb, ff_msmp4_dc_luma_vlc[s->dc_table_index].table, DC_VLC_BITS, 3);
1633 dcdiff = get_vlc2(&s->gb, ff_msmp4_dc_chroma_vlc[s->dc_table_index].table, DC_VLC_BITS, 3);
1636 av_log(s->avctx, AV_LOG_ERROR, "Illegal DC VLC\n");
1641 if (dcdiff == 119 /* ESC index value */)
1643 /* TODO: Optimize */
1644 if (v->pq == 1) dcdiff = get_bits(gb, 10);
1645 else if (v->pq == 2) dcdiff = get_bits(gb, 9);
1646 else dcdiff = get_bits(gb, 8);
1651 dcdiff = (dcdiff<<2) + get_bits(gb, 2) - 3;
1652 else if (v->pq == 2)
1653 dcdiff = (dcdiff<<1) + get_bits1(gb) - 1;
1660 dcdiff += vc1_i_pred_dc(&v->s, v->overlap, v->pq, n, &dc_val, &dc_pred_dir);
1663 /* Store the quantized DC coeff, used for prediction */
1665 block[0] = dcdiff * s->y_dc_scale;
1667 block[0] = dcdiff * s->c_dc_scale;
1678 int last = 0, skip, value;
1679 const uint8_t *zz_table;
1683 scale = v->pq * 2 + v->halfpq;
1687 zz_table = v->zz_8x8[2];
1689 zz_table = v->zz_8x8[3];
1691 zz_table = v->zz_8x8[1];
1693 ac_val = s->ac_val[0][0] + s->block_index[n] * 16;
1695 if(dc_pred_dir) //left
1698 ac_val -= 16 * s->block_wrap[n];
1701 vc1_decode_ac_coeff(v, &last, &skip, &value, codingset);
1705 block[zz_table[i++]] = value;
1708 /* apply AC prediction if needed */
1710 if(dc_pred_dir) { //left
1711 for(k = 1; k < 8; k++)
1712 block[k << v->left_blk_sh] += ac_val[k];
1714 for(k = 1; k < 8; k++)
1715 block[k << v->top_blk_sh] += ac_val[k + 8];
1718 /* save AC coeffs for further prediction */
1719 for(k = 1; k < 8; k++) {
1720 ac_val2[k] = block[k << v->left_blk_sh];
1721 ac_val2[k + 8] = block[k << v->top_blk_sh];
1724 /* scale AC coeffs */
1725 for(k = 1; k < 64; k++)
1729 block[k] += (block[k] < 0) ? -v->pq : v->pq;
1732 if(s->ac_pred) i = 63;
1738 ac_val = s->ac_val[0][0] + s->block_index[n] * 16;
1742 scale = v->pq * 2 + v->halfpq;
1743 memset(ac_val2, 0, 16 * 2);
1744 if(dc_pred_dir) {//left
1747 memcpy(ac_val2, ac_val, 8 * 2);
1749 ac_val -= 16 * s->block_wrap[n];
1751 memcpy(ac_val2 + 8, ac_val + 8, 8 * 2);
1754 /* apply AC prediction if needed */
1756 if(dc_pred_dir) { //left
1757 for(k = 1; k < 8; k++) {
1758 block[k << v->left_blk_sh] = ac_val[k] * scale;
1759 if(!v->pquantizer && block[k << v->left_blk_sh])
1760 block[k << v->left_blk_sh] += (block[k << v->left_blk_sh] < 0) ? -v->pq : v->pq;
1763 for(k = 1; k < 8; k++) {
1764 block[k << v->top_blk_sh] = ac_val[k + 8] * scale;
1765 if(!v->pquantizer && block[k << v->top_blk_sh])
1766 block[k << v->top_blk_sh] += (block[k << v->top_blk_sh] < 0) ? -v->pq : v->pq;
1772 s->block_last_index[n] = i;
1777 /** Decode intra block in intra frames - should be faster than decode_intra_block
1778 * @param v VC1Context
1779 * @param block block to decode
1780 * @param[in] n subblock number
1781 * @param coded are AC coeffs present or not
1782 * @param codingset set of VLC to decode data
1783 * @param mquant quantizer value for this macroblock
1785 static int vc1_decode_i_block_adv(VC1Context *v, DCTELEM block[64], int n, int coded, int codingset, int mquant)
1787 GetBitContext *gb = &v->s.gb;
1788 MpegEncContext *s = &v->s;
1789 int dc_pred_dir = 0; /* Direction of the DC prediction used */
1792 int16_t *ac_val, *ac_val2;
1794 int a_avail = v->a_avail, c_avail = v->c_avail;
1795 int use_pred = s->ac_pred;
1798 int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
1800 /* Get DC differential */
1802 dcdiff = get_vlc2(&s->gb, ff_msmp4_dc_luma_vlc[s->dc_table_index].table, DC_VLC_BITS, 3);
1804 dcdiff = get_vlc2(&s->gb, ff_msmp4_dc_chroma_vlc[s->dc_table_index].table, DC_VLC_BITS, 3);
1807 av_log(s->avctx, AV_LOG_ERROR, "Illegal DC VLC\n");
1812 if (dcdiff == 119 /* ESC index value */)
1814 /* TODO: Optimize */
1815 if (mquant == 1) dcdiff = get_bits(gb, 10);
1816 else if (mquant == 2) dcdiff = get_bits(gb, 9);
1817 else dcdiff = get_bits(gb, 8);
1822 dcdiff = (dcdiff<<2) + get_bits(gb, 2) - 3;
1823 else if (mquant == 2)
1824 dcdiff = (dcdiff<<1) + get_bits1(gb) - 1;
1831 dcdiff += vc1_pred_dc(&v->s, v->overlap, mquant, n, v->a_avail, v->c_avail, &dc_val, &dc_pred_dir);
1834 /* Store the quantized DC coeff, used for prediction */
1836 block[0] = dcdiff * s->y_dc_scale;
1838 block[0] = dcdiff * s->c_dc_scale;
1844 /* check if AC is needed at all */
1845 if(!a_avail && !c_avail) use_pred = 0;
1846 ac_val = s->ac_val[0][0] + s->block_index[n] * 16;
1849 scale = mquant * 2 + ((mquant == v->pq) ? v->halfpq : 0);
1851 if(dc_pred_dir) //left
1854 ac_val -= 16 * s->block_wrap[n];
1856 q1 = s->current_picture.f.qscale_table[mb_pos];
1857 if(dc_pred_dir && c_avail && mb_pos) q2 = s->current_picture.f.qscale_table[mb_pos - 1];
1858 if(!dc_pred_dir && a_avail && mb_pos >= s->mb_stride) q2 = s->current_picture.f.qscale_table[mb_pos - s->mb_stride];
1859 if(dc_pred_dir && n==1) q2 = q1;
1860 if(!dc_pred_dir && n==2) q2 = q1;
1864 int last = 0, skip, value;
1865 const uint8_t *zz_table;
1870 zz_table = v->zz_8x8[2];
1872 zz_table = v->zz_8x8[3];
1874 zz_table = v->zz_8x8[1];
1877 vc1_decode_ac_coeff(v, &last, &skip, &value, codingset);
1881 block[zz_table[i++]] = value;
1884 /* apply AC prediction if needed */
1886 /* scale predictors if needed*/
1888 q1 = q1 * 2 + ((q1 == v->pq) ? v->halfpq : 0) - 1;
1889 q2 = q2 * 2 + ((q2 == v->pq) ? v->halfpq : 0) - 1;
1891 if(dc_pred_dir) { //left
1892 for(k = 1; k < 8; k++)
1893 block[k << v->left_blk_sh] += (ac_val[k] * q2 * ff_vc1_dqscale[q1 - 1] + 0x20000) >> 18;
1895 for(k = 1; k < 8; k++)
1896 block[k << v->top_blk_sh] += (ac_val[k + 8] * q2 * ff_vc1_dqscale[q1 - 1] + 0x20000) >> 18;
1899 if(dc_pred_dir) { //left
1900 for(k = 1; k < 8; k++)
1901 block[k << v->left_blk_sh] += ac_val[k];
1903 for(k = 1; k < 8; k++)
1904 block[k << v->top_blk_sh] += ac_val[k + 8];
1908 /* save AC coeffs for further prediction */
1909 for(k = 1; k < 8; k++) {
1910 ac_val2[k ] = block[k << v->left_blk_sh];
1911 ac_val2[k + 8] = block[k << v->top_blk_sh];
1914 /* scale AC coeffs */
1915 for(k = 1; k < 64; k++)
1919 block[k] += (block[k] < 0) ? -mquant : mquant;
1922 if(use_pred) i = 63;
1923 } else { // no AC coeffs
1926 memset(ac_val2, 0, 16 * 2);
1927 if(dc_pred_dir) {//left
1929 memcpy(ac_val2, ac_val, 8 * 2);
1931 q1 = q1 * 2 + ((q1 == v->pq) ? v->halfpq : 0) - 1;
1932 q2 = q2 * 2 + ((q2 == v->pq) ? v->halfpq : 0) - 1;
1933 for(k = 1; k < 8; k++)
1934 ac_val2[k] = (ac_val2[k] * q2 * ff_vc1_dqscale[q1 - 1] + 0x20000) >> 18;
1939 memcpy(ac_val2 + 8, ac_val + 8, 8 * 2);
1941 q1 = q1 * 2 + ((q1 == v->pq) ? v->halfpq : 0) - 1;
1942 q2 = q2 * 2 + ((q2 == v->pq) ? v->halfpq : 0) - 1;
1943 for(k = 1; k < 8; k++)
1944 ac_val2[k + 8] = (ac_val2[k + 8] * q2 * ff_vc1_dqscale[q1 - 1] + 0x20000) >> 18;
1949 /* apply AC prediction if needed */
1951 if(dc_pred_dir) { //left
1952 for(k = 1; k < 8; k++) {
1953 block[k << v->left_blk_sh] = ac_val2[k] * scale;
1954 if(!v->pquantizer && block[k << v->left_blk_sh])
1955 block[k << v->left_blk_sh] += (block[k << v->left_blk_sh] < 0) ? -mquant : mquant;
1958 for(k = 1; k < 8; k++) {
1959 block[k << v->top_blk_sh] = ac_val2[k + 8] * scale;
1960 if(!v->pquantizer && block[k << v->top_blk_sh])
1961 block[k << v->top_blk_sh] += (block[k << v->top_blk_sh] < 0) ? -mquant : mquant;
1967 s->block_last_index[n] = i;
1972 /** Decode intra block in inter frames - more generic version than vc1_decode_i_block
1973 * @param v VC1Context
1974 * @param block block to decode
1975 * @param[in] n subblock index
1976 * @param coded are AC coeffs present or not
1977 * @param mquant block quantizer
1978 * @param codingset set of VLC to decode data
1980 static int vc1_decode_intra_block(VC1Context *v, DCTELEM block[64], int n, int coded, int mquant, int codingset)
1982 GetBitContext *gb = &v->s.gb;
1983 MpegEncContext *s = &v->s;
1984 int dc_pred_dir = 0; /* Direction of the DC prediction used */
1987 int16_t *ac_val, *ac_val2;
1989 int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
1990 int a_avail = v->a_avail, c_avail = v->c_avail;
1991 int use_pred = s->ac_pred;
1995 s->dsp.clear_block(block);
1997 /* XXX: Guard against dumb values of mquant */
1998 mquant = (mquant < 1) ? 0 : ( (mquant>31) ? 31 : mquant );
2000 /* Set DC scale - y and c use the same */
2001 s->y_dc_scale = s->y_dc_scale_table[mquant];
2002 s->c_dc_scale = s->c_dc_scale_table[mquant];
2004 /* Get DC differential */
2006 dcdiff = get_vlc2(&s->gb, ff_msmp4_dc_luma_vlc[s->dc_table_index].table, DC_VLC_BITS, 3);
2008 dcdiff = get_vlc2(&s->gb, ff_msmp4_dc_chroma_vlc[s->dc_table_index].table, DC_VLC_BITS, 3);
2011 av_log(s->avctx, AV_LOG_ERROR, "Illegal DC VLC\n");
2016 if (dcdiff == 119 /* ESC index value */)
2018 /* TODO: Optimize */
2019 if (mquant == 1) dcdiff = get_bits(gb, 10);
2020 else if (mquant == 2) dcdiff = get_bits(gb, 9);
2021 else dcdiff = get_bits(gb, 8);
2026 dcdiff = (dcdiff<<2) + get_bits(gb, 2) - 3;
2027 else if (mquant == 2)
2028 dcdiff = (dcdiff<<1) + get_bits1(gb) - 1;
2035 dcdiff += vc1_pred_dc(&v->s, v->overlap, mquant, n, a_avail, c_avail, &dc_val, &dc_pred_dir);
2038 /* Store the quantized DC coeff, used for prediction */
2041 block[0] = dcdiff * s->y_dc_scale;
2043 block[0] = dcdiff * s->c_dc_scale;
2049 /* check if AC is needed at all and adjust direction if needed */
2050 if(!a_avail) dc_pred_dir = 1;
2051 if(!c_avail) dc_pred_dir = 0;
2052 if(!a_avail && !c_avail) use_pred = 0;
2053 ac_val = s->ac_val[0][0] + s->block_index[n] * 16;
2056 scale = mquant * 2 + v->halfpq;
2058 if(dc_pred_dir) //left
2061 ac_val -= 16 * s->block_wrap[n];
2063 q1 = s->current_picture.f.qscale_table[mb_pos];
2064 if(dc_pred_dir && c_avail && mb_pos) q2 = s->current_picture.f.qscale_table[mb_pos - 1];
2065 if(!dc_pred_dir && a_avail && mb_pos >= s->mb_stride) q2 = s->current_picture.f.qscale_table[mb_pos - s->mb_stride];
2066 if(dc_pred_dir && n==1) q2 = q1;
2067 if(!dc_pred_dir && n==2) q2 = q1;
2071 int last = 0, skip, value;
2075 vc1_decode_ac_coeff(v, &last, &skip, &value, codingset);
2079 block[v->zz_8x8[0][i++]] = value;
2082 /* apply AC prediction if needed */
2084 /* scale predictors if needed*/
2086 q1 = q1 * 2 + ((q1 == v->pq) ? v->halfpq : 0) - 1;
2087 q2 = q2 * 2 + ((q2 == v->pq) ? v->halfpq : 0) - 1;
2089 if(dc_pred_dir) { //left
2090 for(k = 1; k < 8; k++)
2091 block[k << v->left_blk_sh] += (ac_val[k] * q2 * ff_vc1_dqscale[q1 - 1] + 0x20000) >> 18;
2093 for(k = 1; k < 8; k++)
2094 block[k << v->top_blk_sh] += (ac_val[k + 8] * q2 * ff_vc1_dqscale[q1 - 1] + 0x20000) >> 18;
2097 if(dc_pred_dir) { //left
2098 for(k = 1; k < 8; k++)
2099 block[k << v->left_blk_sh] += ac_val[k];
2101 for(k = 1; k < 8; k++)
2102 block[k << v->top_blk_sh] += ac_val[k + 8];
2106 /* save AC coeffs for further prediction */
2107 for(k = 1; k < 8; k++) {
2108 ac_val2[k ] = block[k << v->left_blk_sh];
2109 ac_val2[k + 8] = block[k << v->top_blk_sh];
2112 /* scale AC coeffs */
2113 for(k = 1; k < 64; k++)
2117 block[k] += (block[k] < 0) ? -mquant : mquant;
2120 if(use_pred) i = 63;
2121 } else { // no AC coeffs
2124 memset(ac_val2, 0, 16 * 2);
2125 if(dc_pred_dir) {//left
2127 memcpy(ac_val2, ac_val, 8 * 2);
2129 q1 = q1 * 2 + ((q1 == v->pq) ? v->halfpq : 0) - 1;
2130 q2 = q2 * 2 + ((q2 == v->pq) ? v->halfpq : 0) - 1;
2131 for(k = 1; k < 8; k++)
2132 ac_val2[k] = (ac_val2[k] * q2 * ff_vc1_dqscale[q1 - 1] + 0x20000) >> 18;
2137 memcpy(ac_val2 + 8, ac_val + 8, 8 * 2);
2139 q1 = q1 * 2 + ((q1 == v->pq) ? v->halfpq : 0) - 1;
2140 q2 = q2 * 2 + ((q2 == v->pq) ? v->halfpq : 0) - 1;
2141 for(k = 1; k < 8; k++)
2142 ac_val2[k + 8] = (ac_val2[k + 8] * q2 * ff_vc1_dqscale[q1 - 1] + 0x20000) >> 18;
2147 /* apply AC prediction if needed */
2149 if(dc_pred_dir) { //left
2150 for(k = 1; k < 8; k++) {
2151 block[k << v->left_blk_sh] = ac_val2[k] * scale;
2152 if(!v->pquantizer && block[k << v->left_blk_sh])
2153 block[k << v->left_blk_sh] += (block[k << v->left_blk_sh] < 0) ? -mquant : mquant;
2156 for(k = 1; k < 8; k++) {
2157 block[k << v->top_blk_sh] = ac_val2[k + 8] * scale;
2158 if(!v->pquantizer && block[k << v->top_blk_sh])
2159 block[k << v->top_blk_sh] += (block[k << v->top_blk_sh] < 0) ? -mquant : mquant;
2165 s->block_last_index[n] = i;
2172 static int vc1_decode_p_block(VC1Context *v, DCTELEM block[64], int n, int mquant, int ttmb, int first_block,
2173 uint8_t *dst, int linesize, int skip_block, int *ttmb_out)
2175 MpegEncContext *s = &v->s;
2176 GetBitContext *gb = &s->gb;
2179 int scale, off, idx, last, skip, value;
2180 int ttblk = ttmb & 7;
2183 s->dsp.clear_block(block);
2186 ttblk = ff_vc1_ttblk_to_tt[v->tt_index][get_vlc2(gb, ff_vc1_ttblk_vlc[v->tt_index].table, VC1_TTBLK_VLC_BITS, 1)];
2188 if(ttblk == TT_4X4) {
2189 subblkpat = ~(get_vlc2(gb, ff_vc1_subblkpat_vlc[v->tt_index].table, VC1_SUBBLKPAT_VLC_BITS, 1) + 1);
2191 if((ttblk != TT_8X8 && ttblk != TT_4X4)
2192 && ((v->ttmbf || (ttmb != -1 && (ttmb & 8) && !first_block))
2193 || (!v->res_rtm_flag && !first_block))) {
2194 subblkpat = decode012(gb);
2195 if(subblkpat) subblkpat ^= 3; //swap decoded pattern bits
2196 if(ttblk == TT_8X4_TOP || ttblk == TT_8X4_BOTTOM) ttblk = TT_8X4;
2197 if(ttblk == TT_4X8_RIGHT || ttblk == TT_4X8_LEFT) ttblk = TT_4X8;
2199 scale = 2 * mquant + ((v->pq == mquant) ? v->halfpq : 0);
2201 // convert transforms like 8X4_TOP to generic TT and SUBBLKPAT
2202 if(ttblk == TT_8X4_TOP || ttblk == TT_8X4_BOTTOM) {
2203 subblkpat = 2 - (ttblk == TT_8X4_TOP);
2206 if(ttblk == TT_4X8_RIGHT || ttblk == TT_4X8_LEFT) {
2207 subblkpat = 2 - (ttblk == TT_4X8_LEFT);
2216 vc1_decode_ac_coeff(v, &last, &skip, &value, v->codingset2);
2220 idx = v->zz_8x8[0][i++];
2221 block[idx] = value * scale;
2223 block[idx] += (block[idx] < 0) ? -mquant : mquant;
2227 v->vc1dsp.vc1_inv_trans_8x8_dc(dst, linesize, block);
2229 v->vc1dsp.vc1_inv_trans_8x8(block);
2230 s->dsp.add_pixels_clamped(block, dst, linesize);
2235 pat = ~subblkpat & 0xF;
2236 for(j = 0; j < 4; j++) {
2237 last = subblkpat & (1 << (3 - j));
2239 off = (j & 1) * 4 + (j & 2) * 16;
2241 vc1_decode_ac_coeff(v, &last, &skip, &value, v->codingset2);
2245 idx = ff_vc1_simple_progressive_4x4_zz[i++];
2246 block[idx + off] = value * scale;
2248 block[idx + off] += (block[idx + off] < 0) ? -mquant : mquant;
2250 if(!(subblkpat & (1 << (3 - j))) && !skip_block){
2252 v->vc1dsp.vc1_inv_trans_4x4_dc(dst + (j&1)*4 + (j&2)*2*linesize, linesize, block + off);
2254 v->vc1dsp.vc1_inv_trans_4x4(dst + (j&1)*4 + (j&2)*2*linesize, linesize, block + off);
2259 pat = ~((subblkpat & 2)*6 + (subblkpat & 1)*3) & 0xF;
2260 for(j = 0; j < 2; j++) {
2261 last = subblkpat & (1 << (1 - j));
2265 vc1_decode_ac_coeff(v, &last, &skip, &value, v->codingset2);
2269 idx = v->zz_8x4[i++]+off;
2270 block[idx] = value * scale;
2272 block[idx] += (block[idx] < 0) ? -mquant : mquant;
2274 if(!(subblkpat & (1 << (1 - j))) && !skip_block){
2276 v->vc1dsp.vc1_inv_trans_8x4_dc(dst + j*4*linesize, linesize, block + off);
2278 v->vc1dsp.vc1_inv_trans_8x4(dst + j*4*linesize, linesize, block + off);
2283 pat = ~(subblkpat*5) & 0xF;
2284 for(j = 0; j < 2; j++) {
2285 last = subblkpat & (1 << (1 - j));
2289 vc1_decode_ac_coeff(v, &last, &skip, &value, v->codingset2);
2293 idx = v->zz_4x8[i++]+off;
2294 block[idx] = value * scale;
2296 block[idx] += (block[idx] < 0) ? -mquant : mquant;
2298 if(!(subblkpat & (1 << (1 - j))) && !skip_block){
2300 v->vc1dsp.vc1_inv_trans_4x8_dc(dst + j*4, linesize, block + off);
2302 v->vc1dsp.vc1_inv_trans_4x8(dst + j*4, linesize, block + off);
2308 *ttmb_out |= ttblk << (n * 4);
2312 /** @} */ // Macroblock group
2314 static const int size_table [6] = { 0, 2, 3, 4, 5, 8 };
2315 static const int offset_table[6] = { 0, 1, 3, 7, 15, 31 };
2317 static av_always_inline void vc1_apply_p_v_loop_filter(VC1Context *v, int block_num)
2319 MpegEncContext *s = &v->s;
2320 int mb_cbp = v->cbp[s->mb_x - s->mb_stride],
2321 block_cbp = mb_cbp >> (block_num * 4), bottom_cbp,
2322 mb_is_intra = v->is_intra[s->mb_x - s->mb_stride],
2323 block_is_intra = mb_is_intra >> (block_num * 4), bottom_is_intra;
2324 int idx, linesize = block_num > 3 ? s->uvlinesize : s->linesize, ttblk;
2328 dst = s->dest[block_num - 3];
2330 dst = s->dest[0] + (block_num & 1) * 8 + ((block_num & 2) * 4 - 8) * linesize;
2332 if (s->mb_y != s->mb_height || block_num < 2) {
2337 bottom_cbp = v->cbp[s->mb_x] >> (block_num * 4);
2338 bottom_is_intra = v->is_intra[s->mb_x] >> (block_num * 4);
2339 mv = &v->luma_mv[s->mb_x - s->mb_stride];
2340 mv_stride = s->mb_stride;
2342 bottom_cbp = (block_num < 2) ? (mb_cbp >> ((block_num + 2) * 4)) :
2343 (v->cbp[s->mb_x] >> ((block_num - 2) * 4));
2344 bottom_is_intra = (block_num < 2) ? (mb_is_intra >> ((block_num + 2) * 4)) :
2345 (v->is_intra[s->mb_x] >> ((block_num - 2) * 4));
2346 mv_stride = s->b8_stride;
2347 mv = &s->current_picture.f.motion_val[0][s->block_index[block_num] - 2 * mv_stride];
2350 if (bottom_is_intra & 1 || block_is_intra & 1 ||
2351 mv[0][0] != mv[mv_stride][0] || mv[0][1] != mv[mv_stride][1]) {
2352 v->vc1dsp.vc1_v_loop_filter8(dst, linesize, v->pq);
2354 idx = ((bottom_cbp >> 2) | block_cbp) & 3;
2356 v->vc1dsp.vc1_v_loop_filter8(dst, linesize, v->pq);
2359 v->vc1dsp.vc1_v_loop_filter4(dst + 4, linesize, v->pq);
2361 v->vc1dsp.vc1_v_loop_filter4(dst, linesize, v->pq);
2366 dst -= 4 * linesize;
2367 ttblk = (v->ttblk[s->mb_x - s->mb_stride] >> (block_num * 4)) & 0xf;
2368 if (ttblk == TT_4X4 || ttblk == TT_8X4) {
2369 idx = (block_cbp | (block_cbp >> 2)) & 3;
2371 v->vc1dsp.vc1_v_loop_filter8(dst, linesize, v->pq);
2374 v->vc1dsp.vc1_v_loop_filter4(dst + 4, linesize, v->pq);
2376 v->vc1dsp.vc1_v_loop_filter4(dst, linesize, v->pq);
2381 static av_always_inline void vc1_apply_p_h_loop_filter(VC1Context *v, int block_num)
2383 MpegEncContext *s = &v->s;
2384 int mb_cbp = v->cbp[s->mb_x - 1 - s->mb_stride],
2385 block_cbp = mb_cbp >> (block_num * 4), right_cbp,
2386 mb_is_intra = v->is_intra[s->mb_x - 1 - s->mb_stride],
2387 block_is_intra = mb_is_intra >> (block_num * 4), right_is_intra;
2388 int idx, linesize = block_num > 3 ? s->uvlinesize : s->linesize, ttblk;
2391 if (block_num > 3) {
2392 dst = s->dest[block_num - 3] - 8 * linesize;
2394 dst = s->dest[0] + (block_num & 1) * 8 + ((block_num & 2) * 4 - 16) * linesize - 8;
2397 if (s->mb_x != s->mb_width || !(block_num & 5)) {
2401 right_cbp = v->cbp[s->mb_x - s->mb_stride] >> (block_num * 4);
2402 right_is_intra = v->is_intra[s->mb_x - s->mb_stride] >> (block_num * 4);
2403 mv = &v->luma_mv[s->mb_x - s->mb_stride - 1];
2405 right_cbp = (block_num & 1) ? (v->cbp[s->mb_x - s->mb_stride] >> ((block_num - 1) * 4)) :
2406 (mb_cbp >> ((block_num + 1) * 4));
2407 right_is_intra = (block_num & 1) ? (v->is_intra[s->mb_x - s->mb_stride] >> ((block_num - 1) * 4)) :
2408 (mb_is_intra >> ((block_num + 1) * 4));
2409 mv = &s->current_picture.f.motion_val[0][s->block_index[block_num] - s->b8_stride * 2 - 2];
2411 if (block_is_intra & 1 || right_is_intra & 1 || mv[0][0] != mv[1][0] || mv[0][1] != mv[1][1]) {
2412 v->vc1dsp.vc1_h_loop_filter8(dst, linesize, v->pq);
2414 idx = ((right_cbp >> 1) | block_cbp) & 5; // FIXME check
2416 v->vc1dsp.vc1_h_loop_filter8(dst, linesize, v->pq);
2419 v->vc1dsp.vc1_h_loop_filter4(dst+4*linesize, linesize, v->pq);
2421 v->vc1dsp.vc1_h_loop_filter4(dst, linesize, v->pq);
2427 ttblk = (v->ttblk[s->mb_x - s->mb_stride - 1] >> (block_num * 4)) & 0xf;
2428 if (ttblk == TT_4X4 || ttblk == TT_4X8) {
2429 idx = (block_cbp | (block_cbp >> 1)) & 5;
2431 v->vc1dsp.vc1_h_loop_filter8(dst, linesize, v->pq);
2434 v->vc1dsp.vc1_h_loop_filter4(dst + linesize*4, linesize, v->pq);
2436 v->vc1dsp.vc1_h_loop_filter4(dst, linesize, v->pq);
2441 static void vc1_apply_p_loop_filter(VC1Context *v)
2443 MpegEncContext *s = &v->s;
2446 for (i = 0; i < 6; i++) {
2447 vc1_apply_p_v_loop_filter(v, i);
2450 /* V always preceedes H, therefore we run H one MB before V;
2451 * at the end of a row, we catch up to complete the row */
2453 for (i = 0; i < 6; i++) {
2454 vc1_apply_p_h_loop_filter(v, i);
2456 if (s->mb_x == s->mb_width - 1) {
2458 ff_update_block_index(s);
2459 for (i = 0; i < 6; i++) {
2460 vc1_apply_p_h_loop_filter(v, i);
2466 /** Decode one P-frame MB (in Simple/Main profile)
2468 static int vc1_decode_p_mb(VC1Context *v)
2470 MpegEncContext *s = &v->s;
2471 GetBitContext *gb = &s->gb;
2473 int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
2474 int cbp; /* cbp decoding stuff */
2475 int mqdiff, mquant; /* MB quantization */
2476 int ttmb = v->ttfrm; /* MB Transform type */
2478 int mb_has_coeffs = 1; /* last_flag */
2479 int dmv_x, dmv_y; /* Differential MV components */
2480 int index, index1; /* LUT indexes */
2481 int val, sign; /* temp values */
2482 int first_block = 1;
2484 int skipped, fourmv;
2485 int block_cbp = 0, pat, block_tt = 0, block_intra = 0;
2487 mquant = v->pq; /* Loosy initialization */
2489 if (v->mv_type_is_raw)
2490 fourmv = get_bits1(gb);
2492 fourmv = v->mv_type_mb_plane[mb_pos];
2494 skipped = get_bits1(gb);
2496 skipped = v->s.mbskip_table[mb_pos];
2498 if (!fourmv) /* 1MV mode */
2502 GET_MVDATA(dmv_x, dmv_y);
2505 s->current_picture.f.motion_val[1][s->block_index[0]][0] = 0;
2506 s->current_picture.f.motion_val[1][s->block_index[0]][1] = 0;
2508 s->current_picture.f.mb_type[mb_pos] = s->mb_intra ? MB_TYPE_INTRA : MB_TYPE_16x16;
2509 vc1_pred_mv(v, 0, dmv_x, dmv_y, 1, v->range_x, v->range_y, v->mb_type[0]);
2511 /* FIXME Set DC val for inter block ? */
2512 if (s->mb_intra && !mb_has_coeffs)
2515 s->ac_pred = get_bits1(gb);
2518 else if (mb_has_coeffs)
2520 if (s->mb_intra) s->ac_pred = get_bits1(gb);
2521 cbp = get_vlc2(&v->s.gb, v->cbpcy_vlc->table, VC1_CBPCY_P_VLC_BITS, 2);
2529 s->current_picture.f.qscale_table[mb_pos] = mquant;
2531 if (!v->ttmbf && !s->mb_intra && mb_has_coeffs)
2532 ttmb = get_vlc2(gb, ff_vc1_ttmb_vlc[v->tt_index].table,
2533 VC1_TTMB_VLC_BITS, 2);
2534 if(!s->mb_intra) vc1_mc_1mv(v, 0);
2538 s->dc_val[0][s->block_index[i]] = 0;
2540 val = ((cbp >> (5 - i)) & 1);
2541 off = (i & 4) ? 0 : ((i & 1) * 8 + (i & 2) * 4 * s->linesize);
2542 v->mb_type[0][s->block_index[i]] = s->mb_intra;
2544 /* check if prediction blocks A and C are available */
2545 v->a_avail = v->c_avail = 0;
2546 if(i == 2 || i == 3 || !s->first_slice_line)
2547 v->a_avail = v->mb_type[0][s->block_index[i] - s->block_wrap[i]];
2548 if(i == 1 || i == 3 || s->mb_x)
2549 v->c_avail = v->mb_type[0][s->block_index[i] - 1];
2551 vc1_decode_intra_block(v, s->block[i], i, val, mquant, (i&4)?v->codingset2:v->codingset);
2552 if((i>3) && (s->flags & CODEC_FLAG_GRAY)) continue;
2553 v->vc1dsp.vc1_inv_trans_8x8(s->block[i]);
2554 if(v->rangeredfrm) for(j = 0; j < 64; j++) s->block[i][j] <<= 1;
2555 s->dsp.put_signed_pixels_clamped(s->block[i], s->dest[dst_idx] + off, i & 4 ? s->uvlinesize : s->linesize);
2556 if(v->pq >= 9 && v->overlap) {
2558 v->vc1dsp.vc1_h_overlap(s->dest[dst_idx] + off, i & 4 ? s->uvlinesize : s->linesize);
2560 v->vc1dsp.vc1_v_overlap(s->dest[dst_idx] + off, i & 4 ? s->uvlinesize : s->linesize);
2562 block_cbp |= 0xF << (i << 2);
2563 block_intra |= 1 << i;
2565 pat = vc1_decode_p_block(v, s->block[i], i, mquant, ttmb, first_block, s->dest[dst_idx] + off, (i&4)?s->uvlinesize:s->linesize, (i&4) && (s->flags & CODEC_FLAG_GRAY), &block_tt);
2566 block_cbp |= pat << (i << 2);
2567 if(!v->ttmbf && ttmb < 8) ttmb = -1;
2575 for(i = 0; i < 6; i++) {
2576 v->mb_type[0][s->block_index[i]] = 0;
2577 s->dc_val[0][s->block_index[i]] = 0;
2579 s->current_picture.f.mb_type[mb_pos] = MB_TYPE_SKIP;
2580 s->current_picture.f.qscale_table[mb_pos] = 0;
2581 vc1_pred_mv(v, 0, 0, 0, 1, v->range_x, v->range_y, v->mb_type[0]);
2587 if (!skipped /* unskipped MB */)
2589 int intra_count = 0, coded_inter = 0;
2590 int is_intra[6], is_coded[6];
2592 cbp = get_vlc2(&v->s.gb, v->cbpcy_vlc->table, VC1_CBPCY_P_VLC_BITS, 2);
2595 val = ((cbp >> (5 - i)) & 1);
2596 s->dc_val[0][s->block_index[i]] = 0;
2603 GET_MVDATA(dmv_x, dmv_y);
2605 vc1_pred_mv(v, i, dmv_x, dmv_y, 0, v->range_x, v->range_y, v->mb_type[0]);
2606 if(!s->mb_intra) vc1_mc_4mv_luma(v, i);
2607 intra_count += s->mb_intra;
2608 is_intra[i] = s->mb_intra;
2609 is_coded[i] = mb_has_coeffs;
2612 is_intra[i] = (intra_count >= 3);
2615 if(i == 4) vc1_mc_4mv_chroma(v);
2616 v->mb_type[0][s->block_index[i]] = is_intra[i];
2617 if(!coded_inter) coded_inter = !is_intra[i] & is_coded[i];
2619 // if there are no coded blocks then don't do anything more
2621 if(!intra_count && !coded_inter)
2624 s->current_picture.f.qscale_table[mb_pos] = mquant;
2625 /* test if block is intra and has pred */
2630 if(((!s->first_slice_line || (i==2 || i==3)) && v->mb_type[0][s->block_index[i] - s->block_wrap[i]])
2631 || ((s->mb_x || (i==1 || i==3)) && v->mb_type[0][s->block_index[i] - 1])) {
2636 if(intrapred)s->ac_pred = get_bits1(gb);
2637 else s->ac_pred = 0;
2639 if (!v->ttmbf && coded_inter)
2640 ttmb = get_vlc2(gb, ff_vc1_ttmb_vlc[v->tt_index].table, VC1_TTMB_VLC_BITS, 2);
2644 off = (i & 4) ? 0 : ((i & 1) * 8 + (i & 2) * 4 * s->linesize);
2645 s->mb_intra = is_intra[i];
2647 /* check if prediction blocks A and C are available */
2648 v->a_avail = v->c_avail = 0;
2649 if(i == 2 || i == 3 || !s->first_slice_line)
2650 v->a_avail = v->mb_type[0][s->block_index[i] - s->block_wrap[i]];
2651 if(i == 1 || i == 3 || s->mb_x)
2652 v->c_avail = v->mb_type[0][s->block_index[i] - 1];
2654 vc1_decode_intra_block(v, s->block[i], i, is_coded[i], mquant, (i&4)?v->codingset2:v->codingset);
2655 if((i>3) && (s->flags & CODEC_FLAG_GRAY)) continue;
2656 v->vc1dsp.vc1_inv_trans_8x8(s->block[i]);
2657 if(v->rangeredfrm) for(j = 0; j < 64; j++) s->block[i][j] <<= 1;
2658 s->dsp.put_signed_pixels_clamped(s->block[i], s->dest[dst_idx] + off, (i&4)?s->uvlinesize:s->linesize);
2659 if(v->pq >= 9 && v->overlap) {
2661 v->vc1dsp.vc1_h_overlap(s->dest[dst_idx] + off, i & 4 ? s->uvlinesize : s->linesize);
2663 v->vc1dsp.vc1_v_overlap(s->dest[dst_idx] + off, i & 4 ? s->uvlinesize : s->linesize);
2665 block_cbp |= 0xF << (i << 2);
2666 block_intra |= 1 << i;
2667 } else if(is_coded[i]) {
2668 pat = vc1_decode_p_block(v, s->block[i], i, mquant, ttmb, first_block, s->dest[dst_idx] + off, (i&4)?s->uvlinesize:s->linesize, (i&4) && (s->flags & CODEC_FLAG_GRAY), &block_tt);
2669 block_cbp |= pat << (i << 2);
2670 if(!v->ttmbf && ttmb < 8) ttmb = -1;
2678 s->current_picture.f.qscale_table[mb_pos] = 0;
2679 for (i=0; i<6; i++) {
2680 v->mb_type[0][s->block_index[i]] = 0;
2681 s->dc_val[0][s->block_index[i]] = 0;
2685 vc1_pred_mv(v, i, 0, 0, 0, v->range_x, v->range_y, v->mb_type[0]);
2686 vc1_mc_4mv_luma(v, i);
2688 vc1_mc_4mv_chroma(v);
2689 s->current_picture.f.qscale_table[mb_pos] = 0;
2693 v->cbp[s->mb_x] = block_cbp;
2694 v->ttblk[s->mb_x] = block_tt;
2695 v->is_intra[s->mb_x] = block_intra;
2700 /** Decode one B-frame MB (in Main profile)
2702 static void vc1_decode_b_mb(VC1Context *v)
2704 MpegEncContext *s = &v->s;
2705 GetBitContext *gb = &s->gb;
2707 int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
2708 int cbp = 0; /* cbp decoding stuff */
2709 int mqdiff, mquant; /* MB quantization */
2710 int ttmb = v->ttfrm; /* MB Transform type */
2711 int mb_has_coeffs = 0; /* last_flag */
2712 int index, index1; /* LUT indexes */
2713 int val, sign; /* temp values */
2714 int first_block = 1;
2716 int skipped, direct;
2717 int dmv_x[2], dmv_y[2];
2718 int bmvtype = BMV_TYPE_BACKWARD;
2720 mquant = v->pq; /* Loosy initialization */
2724 direct = get_bits1(gb);
2726 direct = v->direct_mb_plane[mb_pos];
2728 skipped = get_bits1(gb);
2730 skipped = v->s.mbskip_table[mb_pos];
2732 dmv_x[0] = dmv_x[1] = dmv_y[0] = dmv_y[1] = 0;
2733 for(i = 0; i < 6; i++) {
2734 v->mb_type[0][s->block_index[i]] = 0;
2735 s->dc_val[0][s->block_index[i]] = 0;
2737 s->current_picture.f.qscale_table[mb_pos] = 0;
2741 GET_MVDATA(dmv_x[0], dmv_y[0]);
2742 dmv_x[1] = dmv_x[0];
2743 dmv_y[1] = dmv_y[0];
2745 if(skipped || !s->mb_intra) {
2746 bmvtype = decode012(gb);
2749 bmvtype = (v->bfraction >= (B_FRACTION_DEN/2)) ? BMV_TYPE_BACKWARD : BMV_TYPE_FORWARD;
2752 bmvtype = (v->bfraction >= (B_FRACTION_DEN/2)) ? BMV_TYPE_FORWARD : BMV_TYPE_BACKWARD;
2755 bmvtype = BMV_TYPE_INTERPOLATED;
2756 dmv_x[0] = dmv_y[0] = 0;
2760 for(i = 0; i < 6; i++)
2761 v->mb_type[0][s->block_index[i]] = s->mb_intra;
2764 if(direct) bmvtype = BMV_TYPE_INTERPOLATED;
2765 vc1_pred_b_mv(v, dmv_x, dmv_y, direct, bmvtype);
2766 vc1_b_mc(v, dmv_x, dmv_y, direct, bmvtype);
2770 cbp = get_vlc2(&v->s.gb, v->cbpcy_vlc->table, VC1_CBPCY_P_VLC_BITS, 2);
2773 s->current_picture.f.qscale_table[mb_pos] = mquant;
2775 ttmb = get_vlc2(gb, ff_vc1_ttmb_vlc[v->tt_index].table, VC1_TTMB_VLC_BITS, 2);
2776 dmv_x[0] = dmv_y[0] = dmv_x[1] = dmv_y[1] = 0;
2777 vc1_pred_b_mv(v, dmv_x, dmv_y, direct, bmvtype);
2778 vc1_b_mc(v, dmv_x, dmv_y, direct, bmvtype);
2780 if(!mb_has_coeffs && !s->mb_intra) {
2781 /* no coded blocks - effectively skipped */
2782 vc1_pred_b_mv(v, dmv_x, dmv_y, direct, bmvtype);
2783 vc1_b_mc(v, dmv_x, dmv_y, direct, bmvtype);
2786 if(s->mb_intra && !mb_has_coeffs) {
2788 s->current_picture.f.qscale_table[mb_pos] = mquant;
2789 s->ac_pred = get_bits1(gb);
2791 vc1_pred_b_mv(v, dmv_x, dmv_y, direct, bmvtype);
2793 if(bmvtype == BMV_TYPE_INTERPOLATED) {
2794 GET_MVDATA(dmv_x[0], dmv_y[0]);
2795 if(!mb_has_coeffs) {
2796 /* interpolated skipped block */
2797 vc1_pred_b_mv(v, dmv_x, dmv_y, direct, bmvtype);
2798 vc1_b_mc(v, dmv_x, dmv_y, direct, bmvtype);
2802 vc1_pred_b_mv(v, dmv_x, dmv_y, direct, bmvtype);
2804 vc1_b_mc(v, dmv_x, dmv_y, direct, bmvtype);
2807 s->ac_pred = get_bits1(gb);
2808 cbp = get_vlc2(&v->s.gb, v->cbpcy_vlc->table, VC1_CBPCY_P_VLC_BITS, 2);
2810 s->current_picture.f.qscale_table[mb_pos] = mquant;
2811 if(!v->ttmbf && !s->mb_intra && mb_has_coeffs)
2812 ttmb = get_vlc2(gb, ff_vc1_ttmb_vlc[v->tt_index].table, VC1_TTMB_VLC_BITS, 2);
2818 s->dc_val[0][s->block_index[i]] = 0;
2820 val = ((cbp >> (5 - i)) & 1);
2821 off = (i & 4) ? 0 : ((i & 1) * 8 + (i & 2) * 4 * s->linesize);
2822 v->mb_type[0][s->block_index[i]] = s->mb_intra;
2824 /* check if prediction blocks A and C are available */
2825 v->a_avail = v->c_avail = 0;
2826 if(i == 2 || i == 3 || !s->first_slice_line)
2827 v->a_avail = v->mb_type[0][s->block_index[i] - s->block_wrap[i]];
2828 if(i == 1 || i == 3 || s->mb_x)
2829 v->c_avail = v->mb_type[0][s->block_index[i] - 1];
2831 vc1_decode_intra_block(v, s->block[i], i, val, mquant, (i&4)?v->codingset2:v->codingset);
2832 if((i>3) && (s->flags & CODEC_FLAG_GRAY)) continue;
2833 v->vc1dsp.vc1_inv_trans_8x8(s->block[i]);
2834 if(v->rangeredfrm) for(j = 0; j < 64; j++) s->block[i][j] <<= 1;
2835 s->dsp.put_signed_pixels_clamped(s->block[i], s->dest[dst_idx] + off, i & 4 ? s->uvlinesize : s->linesize);
2837 vc1_decode_p_block(v, s->block[i], i, mquant, ttmb, first_block, s->dest[dst_idx] + off, (i&4)?s->uvlinesize:s->linesize, (i&4) && (s->flags & CODEC_FLAG_GRAY), NULL);
2838 if(!v->ttmbf && ttmb < 8) ttmb = -1;
2844 /** Decode blocks of I-frame
2846 static void vc1_decode_i_blocks(VC1Context *v)
2849 MpegEncContext *s = &v->s;
2854 /* select codingmode used for VLC tables selection */
2855 switch(v->y_ac_table_index){
2857 v->codingset = (v->pqindex <= 8) ? CS_HIGH_RATE_INTRA : CS_LOW_MOT_INTRA;
2860 v->codingset = CS_HIGH_MOT_INTRA;
2863 v->codingset = CS_MID_RATE_INTRA;
2867 switch(v->c_ac_table_index){
2869 v->codingset2 = (v->pqindex <= 8) ? CS_HIGH_RATE_INTER : CS_LOW_MOT_INTER;
2872 v->codingset2 = CS_HIGH_MOT_INTER;
2875 v->codingset2 = CS_MID_RATE_INTER;
2879 /* Set DC scale - y and c use the same */
2880 s->y_dc_scale = s->y_dc_scale_table[v->pq];
2881 s->c_dc_scale = s->c_dc_scale_table[v->pq];
2884 s->mb_x = s->mb_y = 0;
2886 s->first_slice_line = 1;
2887 for(s->mb_y = 0; s->mb_y < s->mb_height; s->mb_y++) {
2889 ff_init_block_index(s);
2890 for(; s->mb_x < s->mb_width; s->mb_x++) {
2892 ff_update_block_index(s);
2893 dst[0] = s->dest[0];
2894 dst[1] = dst[0] + 8;
2895 dst[2] = s->dest[0] + s->linesize * 8;
2896 dst[3] = dst[2] + 8;
2897 dst[4] = s->dest[1];
2898 dst[5] = s->dest[2];
2899 s->dsp.clear_blocks(s->block[0]);
2900 mb_pos = s->mb_x + s->mb_y * s->mb_width;
2901 s->current_picture.f.mb_type[mb_pos] = MB_TYPE_INTRA;
2902 s->current_picture.f.qscale_table[mb_pos] = v->pq;
2903 s->current_picture.f.motion_val[1][s->block_index[0]][0] = 0;
2904 s->current_picture.f.motion_val[1][s->block_index[0]][1] = 0;
2906 // do actual MB decoding and displaying
2907 cbp = get_vlc2(&v->s.gb, ff_msmp4_mb_i_vlc.table, MB_INTRA_VLC_BITS, 2);
2908 v->s.ac_pred = get_bits1(&v->s.gb);
2910 for(k = 0; k < 6; k++) {
2911 val = ((cbp >> (5 - k)) & 1);
2914 int pred = vc1_coded_block_pred(&v->s, k, &coded_val);
2918 cbp |= val << (5 - k);
2920 vc1_decode_i_block(v, s->block[k], k, val, (k<4)? v->codingset : v->codingset2);
2922 if (k > 3 && (s->flags & CODEC_FLAG_GRAY)) continue;
2923 v->vc1dsp.vc1_inv_trans_8x8(s->block[k]);
2924 if(v->pq >= 9 && v->overlap) {
2925 if (v->rangeredfrm) for(j = 0; j < 64; j++) s->block[k][j] <<= 1;
2926 s->dsp.put_signed_pixels_clamped(s->block[k], dst[k], k & 4 ? s->uvlinesize : s->linesize);
2928 if (v->rangeredfrm) for(j = 0; j < 64; j++) s->block[k][j] = (s->block[k][j] - 64) << 1;
2929 s->dsp.put_pixels_clamped(s->block[k], dst[k], k & 4 ? s->uvlinesize : s->linesize);
2933 if(v->pq >= 9 && v->overlap) {
2935 v->vc1dsp.vc1_h_overlap(s->dest[0], s->linesize);
2936 v->vc1dsp.vc1_h_overlap(s->dest[0] + 8 * s->linesize, s->linesize);
2937 if(!(s->flags & CODEC_FLAG_GRAY)) {
2938 v->vc1dsp.vc1_h_overlap(s->dest[1], s->uvlinesize);
2939 v->vc1dsp.vc1_h_overlap(s->dest[2], s->uvlinesize);
2942 v->vc1dsp.vc1_h_overlap(s->dest[0] + 8, s->linesize);
2943 v->vc1dsp.vc1_h_overlap(s->dest[0] + 8 * s->linesize + 8, s->linesize);
2944 if(!s->first_slice_line) {
2945 v->vc1dsp.vc1_v_overlap(s->dest[0], s->linesize);
2946 v->vc1dsp.vc1_v_overlap(s->dest[0] + 8, s->linesize);
2947 if(!(s->flags & CODEC_FLAG_GRAY)) {
2948 v->vc1dsp.vc1_v_overlap(s->dest[1], s->uvlinesize);
2949 v->vc1dsp.vc1_v_overlap(s->dest[2], s->uvlinesize);
2952 v->vc1dsp.vc1_v_overlap(s->dest[0] + 8 * s->linesize, s->linesize);
2953 v->vc1dsp.vc1_v_overlap(s->dest[0] + 8 * s->linesize + 8, s->linesize);
2955 if(v->s.loop_filter) vc1_loop_filter_iblk(v, v->pq);
2957 if(get_bits_count(&s->gb) > v->bits) {
2958 ff_er_add_slice(s, 0, 0, s->mb_x, s->mb_y, (AC_END|DC_END|MV_END));
2959 av_log(s->avctx, AV_LOG_ERROR, "Bits overconsumption: %i > %i\n", get_bits_count(&s->gb), v->bits);
2963 if (!v->s.loop_filter)
2964 ff_draw_horiz_band(s, s->mb_y * 16, 16);
2966 ff_draw_horiz_band(s, (s->mb_y-1) * 16, 16);
2968 s->first_slice_line = 0;
2970 if (v->s.loop_filter)
2971 ff_draw_horiz_band(s, (s->mb_height-1)*16, 16);
2972 ff_er_add_slice(s, 0, 0, s->mb_width - 1, s->mb_height - 1, (AC_END|DC_END|MV_END));
2975 /** Decode blocks of I-frame for advanced profile
2977 static void vc1_decode_i_blocks_adv(VC1Context *v)
2980 MpegEncContext *s = &v->s;
2986 GetBitContext *gb = &s->gb;
2988 /* select codingmode used for VLC tables selection */
2989 switch(v->y_ac_table_index){
2991 v->codingset = (v->pqindex <= 8) ? CS_HIGH_RATE_INTRA : CS_LOW_MOT_INTRA;
2994 v->codingset = CS_HIGH_MOT_INTRA;
2997 v->codingset = CS_MID_RATE_INTRA;
3001 switch(v->c_ac_table_index){
3003 v->codingset2 = (v->pqindex <= 8) ? CS_HIGH_RATE_INTER : CS_LOW_MOT_INTER;
3006 v->codingset2 = CS_HIGH_MOT_INTER;
3009 v->codingset2 = CS_MID_RATE_INTER;
3014 s->mb_x = s->mb_y = 0;
3016 s->first_slice_line = 1;
3017 s->mb_y = s->start_mb_y;
3018 if (s->start_mb_y) {
3020 ff_init_block_index(s);
3021 memset(&s->coded_block[s->block_index[0]-s->b8_stride], 0,
3022 s->b8_stride * sizeof(*s->coded_block));
3024 for(; s->mb_y < s->end_mb_y; s->mb_y++) {
3026 ff_init_block_index(s);
3027 for(;s->mb_x < s->mb_width; s->mb_x++) {
3028 DCTELEM (*block)[64] = v->block[v->cur_blk_idx];
3029 ff_update_block_index(s);
3030 s->dsp.clear_blocks(block[0]);
3031 mb_pos = s->mb_x + s->mb_y * s->mb_stride;
3032 s->current_picture.f.mb_type[mb_pos] = MB_TYPE_INTRA;
3033 s->current_picture.f.motion_val[1][s->block_index[0]][0] = 0;
3034 s->current_picture.f.motion_val[1][s->block_index[0]][1] = 0;
3036 // do actual MB decoding and displaying
3037 cbp = get_vlc2(&v->s.gb, ff_msmp4_mb_i_vlc.table, MB_INTRA_VLC_BITS, 2);
3038 if(v->acpred_is_raw)
3039 v->s.ac_pred = get_bits1(&v->s.gb);
3041 v->s.ac_pred = v->acpred_plane[mb_pos];
3043 if (v->condover == CONDOVER_SELECT && v->overflg_is_raw)
3044 v->over_flags_plane[mb_pos] = get_bits1(&v->s.gb);
3048 s->current_picture.f.qscale_table[mb_pos] = mquant;
3049 /* Set DC scale - y and c use the same */
3050 s->y_dc_scale = s->y_dc_scale_table[mquant];
3051 s->c_dc_scale = s->c_dc_scale_table[mquant];
3053 for(k = 0; k < 6; k++) {
3054 val = ((cbp >> (5 - k)) & 1);
3057 int pred = vc1_coded_block_pred(&v->s, k, &coded_val);
3061 cbp |= val << (5 - k);
3063 v->a_avail = !s->first_slice_line || (k==2 || k==3);
3064 v->c_avail = !!s->mb_x || (k==1 || k==3);
3066 vc1_decode_i_block_adv(v, block[k], k, val, (k<4)? v->codingset : v->codingset2, mquant);
3068 if (k > 3 && (s->flags & CODEC_FLAG_GRAY)) continue;
3069 v->vc1dsp.vc1_inv_trans_8x8(block[k]);
3072 vc1_smooth_overlap_filter_iblk(v);
3073 vc1_put_signed_blocks_clamped(v);
3074 if(v->s.loop_filter) vc1_loop_filter_iblk_delayed(v, v->pq);
3076 if(get_bits_count(&s->gb) > v->bits) {
3077 ff_er_add_slice(s, 0, s->start_mb_y, s->mb_x, s->mb_y, (AC_END|DC_END|MV_END));
3078 av_log(s->avctx, AV_LOG_ERROR, "Bits overconsumption: %i > %i\n", get_bits_count(&s->gb), v->bits);
3082 if (!v->s.loop_filter)
3083 ff_draw_horiz_band(s, s->mb_y * 16, 16);
3085 ff_draw_horiz_band(s, (s->mb_y-1) * 16, 16);
3086 s->first_slice_line = 0;
3089 /* raw bottom MB row */
3091 ff_init_block_index(s);
3092 for(;s->mb_x < s->mb_width; s->mb_x++) {
3093 ff_update_block_index(s);
3094 vc1_put_signed_blocks_clamped(v);
3095 if(v->s.loop_filter) vc1_loop_filter_iblk_delayed(v, v->pq);
3097 if (v->s.loop_filter)
3098 ff_draw_horiz_band(s, (s->mb_height-1)*16, 16);
3099 ff_er_add_slice(s, 0, s->start_mb_y, s->mb_width - 1, s->end_mb_y - 1, (AC_END|DC_END|MV_END));
3102 static void vc1_decode_p_blocks(VC1Context *v)
3104 MpegEncContext *s = &v->s;
3105 int apply_loop_filter;
3107 /* select codingmode used for VLC tables selection */
3108 switch(v->c_ac_table_index){
3110 v->codingset = (v->pqindex <= 8) ? CS_HIGH_RATE_INTRA : CS_LOW_MOT_INTRA;
3113 v->codingset = CS_HIGH_MOT_INTRA;
3116 v->codingset = CS_MID_RATE_INTRA;
3120 switch(v->c_ac_table_index){
3122 v->codingset2 = (v->pqindex <= 8) ? CS_HIGH_RATE_INTER : CS_LOW_MOT_INTER;
3125 v->codingset2 = CS_HIGH_MOT_INTER;
3128 v->codingset2 = CS_MID_RATE_INTER;
3132 apply_loop_filter = s->loop_filter && !(s->avctx->skip_loop_filter >= AVDISCARD_NONKEY);
3133 s->first_slice_line = 1;
3134 memset(v->cbp_base, 0, sizeof(v->cbp_base[0])*2*s->mb_stride);
3135 for(s->mb_y = s->start_mb_y; s->mb_y < s->end_mb_y; s->mb_y++) {
3137 ff_init_block_index(s);
3138 for(; s->mb_x < s->mb_width; s->mb_x++) {
3139 ff_update_block_index(s);
3142 if (s->mb_y != s->start_mb_y && apply_loop_filter)
3143 vc1_apply_p_loop_filter(v);
3144 if(get_bits_count(&s->gb) > v->bits || get_bits_count(&s->gb) < 0) {
3145 ff_er_add_slice(s, 0, s->start_mb_y, s->mb_x, s->mb_y, (AC_END|DC_END|MV_END));
3146 av_log(s->avctx, AV_LOG_ERROR, "Bits overconsumption: %i > %i at %ix%i\n", get_bits_count(&s->gb), v->bits,s->mb_x,s->mb_y);
3150 memmove(v->cbp_base, v->cbp, sizeof(v->cbp_base[0])*s->mb_stride);
3151 memmove(v->ttblk_base, v->ttblk, sizeof(v->ttblk_base[0])*s->mb_stride);
3152 memmove(v->is_intra_base, v->is_intra, sizeof(v->is_intra_base[0])*s->mb_stride);
3153 memmove(v->luma_mv_base, v->luma_mv, sizeof(v->luma_mv_base[0])*s->mb_stride);
3154 if (s->mb_y != s->start_mb_y) ff_draw_horiz_band(s, (s->mb_y-1) * 16, 16);
3155 s->first_slice_line = 0;
3157 if (apply_loop_filter) {
3159 ff_init_block_index(s);
3160 for (; s->mb_x < s->mb_width; s->mb_x++) {
3161 ff_update_block_index(s);
3162 vc1_apply_p_loop_filter(v);
3165 if (s->end_mb_y >= s->start_mb_y)
3166 ff_draw_horiz_band(s, (s->end_mb_y-1) * 16, 16);
3167 ff_er_add_slice(s, 0, s->start_mb_y, s->mb_width - 1, s->end_mb_y - 1, (AC_END|DC_END|MV_END));
3170 static void vc1_decode_b_blocks(VC1Context *v)
3172 MpegEncContext *s = &v->s;
3174 /* select codingmode used for VLC tables selection */
3175 switch(v->c_ac_table_index){
3177 v->codingset = (v->pqindex <= 8) ? CS_HIGH_RATE_INTRA : CS_LOW_MOT_INTRA;
3180 v->codingset = CS_HIGH_MOT_INTRA;
3183 v->codingset = CS_MID_RATE_INTRA;
3187 switch(v->c_ac_table_index){
3189 v->codingset2 = (v->pqindex <= 8) ? CS_HIGH_RATE_INTER : CS_LOW_MOT_INTER;
3192 v->codingset2 = CS_HIGH_MOT_INTER;
3195 v->codingset2 = CS_MID_RATE_INTER;
3199 s->first_slice_line = 1;
3200 for(s->mb_y = s->start_mb_y; s->mb_y < s->end_mb_y; s->mb_y++) {
3202 ff_init_block_index(s);
3203 for(; s->mb_x < s->mb_width; s->mb_x++) {
3204 ff_update_block_index(s);
3207 if(get_bits_count(&s->gb) > v->bits || get_bits_count(&s->gb) < 0) {
3208 ff_er_add_slice(s, 0, s->start_mb_y, s->mb_x, s->mb_y, (AC_END|DC_END|MV_END));
3209 av_log(s->avctx, AV_LOG_ERROR, "Bits overconsumption: %i > %i at %ix%i\n", get_bits_count(&s->gb), v->bits,s->mb_x,s->mb_y);
3212 if(v->s.loop_filter) vc1_loop_filter_iblk(v, v->pq);
3214 if (!v->s.loop_filter)
3215 ff_draw_horiz_band(s, s->mb_y * 16, 16);
3217 ff_draw_horiz_band(s, (s->mb_y-1) * 16, 16);
3218 s->first_slice_line = 0;
3220 if (v->s.loop_filter)
3221 ff_draw_horiz_band(s, (s->mb_height-1)*16, 16);
3222 ff_er_add_slice(s, 0, s->start_mb_y, s->mb_width - 1, s->end_mb_y - 1, (AC_END|DC_END|MV_END));
3225 static void vc1_decode_skip_blocks(VC1Context *v)
3227 MpegEncContext *s = &v->s;
3229 ff_er_add_slice(s, 0, 0, s->mb_width - 1, s->mb_height - 1, (AC_END|DC_END|MV_END));
3230 s->first_slice_line = 1;
3231 for(s->mb_y = 0; s->mb_y < s->mb_height; s->mb_y++) {
3233 ff_init_block_index(s);
3234 ff_update_block_index(s);
3235 memcpy(s->dest[0], s->last_picture.f.data[0] + s->mb_y * 16 * s->linesize, s->linesize * 16);
3236 memcpy(s->dest[1], s->last_picture.f.data[1] + s->mb_y * 8 * s->uvlinesize, s->uvlinesize * 8);
3237 memcpy(s->dest[2], s->last_picture.f.data[2] + s->mb_y * 8 * s->uvlinesize, s->uvlinesize * 8);
3238 ff_draw_horiz_band(s, s->mb_y * 16, 16);
3239 s->first_slice_line = 0;
3241 s->pict_type = AV_PICTURE_TYPE_P;
3244 static void vc1_decode_blocks(VC1Context *v)
3247 v->s.esc3_level_length = 0;
3249 ff_intrax8_decode_picture(&v->x8, 2*v->pq+v->halfpq, v->pq*(!v->pquantizer) );
3252 v->left_blk_idx = -1;
3253 v->topleft_blk_idx = 1;
3255 switch(v->s.pict_type) {
3256 case AV_PICTURE_TYPE_I:
3257 if(v->profile == PROFILE_ADVANCED)
3258 vc1_decode_i_blocks_adv(v);
3260 vc1_decode_i_blocks(v);
3262 case AV_PICTURE_TYPE_P:
3263 if(v->p_frame_skipped)
3264 vc1_decode_skip_blocks(v);
3266 vc1_decode_p_blocks(v);
3268 case AV_PICTURE_TYPE_B:
3270 if(v->profile == PROFILE_ADVANCED)
3271 vc1_decode_i_blocks_adv(v);
3273 vc1_decode_i_blocks(v);
3275 vc1_decode_b_blocks(v);
3281 static inline float get_float_val(GetBitContext* gb)
3283 return (float)get_bits_long(gb, 30) / (1<<15) - (1<<14);
3286 static void vc1_sprite_parse_transform(VC1Context *v, GetBitContext* gb, float c[7])
3290 switch (get_bits(gb, 2)) {
3293 c[2] = get_float_val(gb);
3297 c[0] = c[4] = get_float_val(gb);
3298 c[2] = get_float_val(gb);
3301 c[0] = get_float_val(gb);
3302 c[2] = get_float_val(gb);
3303 c[4] = get_float_val(gb);
3306 av_log_ask_for_sample(v->s.avctx, NULL);
3307 c[0] = get_float_val(gb);
3308 c[1] = get_float_val(gb);
3309 c[2] = get_float_val(gb);
3310 c[3] = get_float_val(gb);
3311 c[4] = get_float_val(gb);
3314 c[5] = get_float_val(gb);
3316 c[6] = get_float_val(gb);
3321 static void vc1_parse_sprites(VC1Context *v, GetBitContext* gb)
3323 int effect_type, effect_flag, effect_pcount1, effect_pcount2, i;
3324 float effect_params1[14], effect_params2[10];
3327 vc1_sprite_parse_transform(v, gb, coefs[0]);
3328 av_log(v->s.avctx, AV_LOG_DEBUG, "S1:");
3329 for (i = 0; i < 7; i++)
3330 av_log(v->s.avctx, AV_LOG_DEBUG, " %.3f", coefs[0][i]);
3331 av_log(v->s.avctx, AV_LOG_DEBUG, "\n");
3333 if (v->two_sprites) {
3334 vc1_sprite_parse_transform(v, gb, coefs[1]);
3335 av_log(v->s.avctx, AV_LOG_DEBUG, "S2:");
3336 for (i = 0; i < 7; i++)
3337 av_log(v->s.avctx, AV_LOG_DEBUG, " %.3f", coefs[1][i]);
3338 av_log(v->s.avctx, AV_LOG_DEBUG, "\n");
3341 if (effect_type = get_bits_long(gb, 30)){
3342 switch (effect_pcount1 = get_bits(gb, 4)) {
3344 effect_params1[0] = get_float_val(gb);
3345 effect_params1[1] = get_float_val(gb);
3348 vc1_sprite_parse_transform(v, gb, effect_params1);
3351 vc1_sprite_parse_transform(v, gb, effect_params1);
3352 vc1_sprite_parse_transform(v, gb, &effect_params1[7]);
3355 av_log_ask_for_sample(v->s.avctx, NULL);
3358 if (effect_type != 13 || effect_params1[0] != coefs[0][6]) {
3359 // effect 13 is simple alpha blending and matches the opacity above
3360 av_log(v->s.avctx, AV_LOG_DEBUG, "Effect: %d; params: ", effect_type);
3361 for (i = 0; i < effect_pcount1; i++)
3362 av_log(v->s.avctx, AV_LOG_DEBUG, " %.3f", effect_params1[i]);
3363 av_log(v->s.avctx, AV_LOG_DEBUG, "\n");
3366 effect_pcount2 = get_bits(gb, 16);
3367 if (effect_pcount2 > 10) {
3368 av_log(v->s.avctx, AV_LOG_ERROR, "Too many effect parameters\n");
3370 } else if (effect_pcount2) {
3372 av_log(v->s.avctx, AV_LOG_DEBUG, "Effect params 2: ");
3373 while (i < effect_pcount2){
3374 effect_params2[i] = get_float_val(gb);
3375 av_log(v->s.avctx, AV_LOG_DEBUG, " %.3f", effect_params2[i]);
3378 av_log(v->s.avctx, AV_LOG_DEBUG, "\n");
3381 if (effect_flag = get_bits1(gb))
3382 av_log(v->s.avctx, AV_LOG_DEBUG, "Effect flag set\n");
3384 if (get_bits_count(gb) >= gb->size_in_bits +
3385 (v->s.avctx->codec_id == CODEC_ID_WMV3 ? 64 : 0))
3386 av_log(v->s.avctx, AV_LOG_ERROR, "Buffer overrun\n");
3387 if (get_bits_count(gb) < gb->size_in_bits - 8)
3388 av_log(v->s.avctx, AV_LOG_WARNING, "Buffer not fully read\n");
3391 /** Initialize a VC1/WMV3 decoder
3392 * @todo TODO: Handle VC-1 IDUs (Transport level?)
3393 * @todo TODO: Decypher remaining bits in extra_data
3395 static av_cold int vc1_decode_init(AVCodecContext *avctx)
3397 VC1Context *v = avctx->priv_data;
3398 MpegEncContext *s = &v->s;
3400 int i, cur_width, cur_height;
3402 if (!avctx->extradata_size || !avctx->extradata) return -1;
3403 if (!(avctx->flags & CODEC_FLAG_GRAY))
3404 avctx->pix_fmt = avctx->get_format(avctx, avctx->codec->pix_fmts);
3406 avctx->pix_fmt = PIX_FMT_GRAY8;
3407 avctx->hwaccel = ff_find_hwaccel(avctx->codec->id, avctx->pix_fmt);
3409 avctx->flags |= CODEC_FLAG_EMU_EDGE;
3410 v->s.flags |= CODEC_FLAG_EMU_EDGE;
3412 if(avctx->idct_algo==FF_IDCT_AUTO){
3413 avctx->idct_algo=FF_IDCT_WMV2;
3416 if(ff_msmpeg4_decode_init(avctx) < 0)
3418 if (vc1_init_common(v) < 0) return -1;
3419 ff_vc1dsp_init(&v->vc1dsp);
3421 cur_width = avctx->coded_width = avctx->width;
3422 cur_height = avctx->coded_height = avctx->height;
3423 if (avctx->codec_id == CODEC_ID_WMV3)
3427 // looks like WMV3 has a sequence header stored in the extradata
3428 // advanced sequence header may be before the first frame
3429 // the last byte of the extradata is a version number, 1 for the
3430 // samples we can decode
3432 init_get_bits(&gb, avctx->extradata, avctx->extradata_size*8);
3434 if (vc1_decode_sequence_header(avctx, v, &gb) < 0)
3437 count = avctx->extradata_size*8 - get_bits_count(&gb);
3440 av_log(avctx, AV_LOG_INFO, "Extra data: %i bits left, value: %X\n",
3441 count, get_bits(&gb, count));
3445 av_log(avctx, AV_LOG_INFO, "Read %i bits in overflow\n", -count);
3447 } else { // VC1/WVC1/WVP2
3448 const uint8_t *start = avctx->extradata;
3449 uint8_t *end = avctx->extradata + avctx->extradata_size;
3450 const uint8_t *next;
3451 int size, buf2_size;
3452 uint8_t *buf2 = NULL;
3453 int seq_initialized = 0, ep_initialized = 0;
3455 if(avctx->extradata_size < 16) {
3456 av_log(avctx, AV_LOG_ERROR, "Extradata size too small: %i\n", avctx->extradata_size);
3460 buf2 = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
3461 start = find_next_marker(start, end); // in WVC1 extradata first byte is its size, but can be 0 in mkv
3463 for(; next < end; start = next){
3464 next = find_next_marker(start + 4, end);
3465 size = next - start - 4;
3466 if(size <= 0) continue;
3467 buf2_size = vc1_unescape_buffer(start + 4, size, buf2);
3468 init_get_bits(&gb, buf2, buf2_size * 8);
3469 switch(AV_RB32(start)){
3470 case VC1_CODE_SEQHDR:
3471 if(vc1_decode_sequence_header(avctx, v, &gb) < 0){
3475 seq_initialized = 1;
3477 case VC1_CODE_ENTRYPOINT:
3478 if(vc1_decode_entry_point(avctx, v, &gb) < 0){
3487 if(!seq_initialized || !ep_initialized){
3488 av_log(avctx, AV_LOG_ERROR, "Incomplete extradata\n");
3491 v->res_sprite = (avctx->codec_tag == MKTAG('W','V','P','2'));
3493 // Sequence header information may not have been parsed
3494 // yet when ff_msmpeg4_decode_init was called the fist time
3495 // above. If sequence information changes, we need to call
3497 if (cur_width != avctx->width ||
3498 cur_height != avctx->height) {
3500 if(ff_msmpeg4_decode_init(avctx) < 0)
3502 avctx->coded_width = avctx->width;
3503 avctx->coded_height = avctx->height;
3506 avctx->profile = v->profile;
3507 if (v->profile == PROFILE_ADVANCED)
3508 avctx->level = v->level;
3510 avctx->has_b_frames= !!(avctx->max_b_frames);
3511 s->low_delay = !avctx->has_b_frames;
3513 s->mb_width = (avctx->coded_width+15)>>4;
3514 s->mb_height = (avctx->coded_height+15)>>4;
3516 if (v->profile == PROFILE_ADVANCED || v->res_fasttx) {
3517 for (i = 0; i < 64; i++) {
3518 #define transpose(x) ((x>>3) | ((x&7)<<3))
3519 v->zz_8x8[0][i] = transpose(wmv1_scantable[0][i]);
3520 v->zz_8x8[1][i] = transpose(wmv1_scantable[1][i]);
3521 v->zz_8x8[2][i] = transpose(wmv1_scantable[2][i]);
3522 v->zz_8x8[3][i] = transpose(wmv1_scantable[3][i]);
3527 memcpy(v->zz_8x8, wmv1_scantable, 4*64);
3532 /* Allocate mb bitplanes */
3533 v->mv_type_mb_plane = av_malloc(s->mb_stride * s->mb_height);
3534 v->direct_mb_plane = av_malloc(s->mb_stride * s->mb_height);
3535 v->acpred_plane = av_malloc(s->mb_stride * s->mb_height);
3536 v->over_flags_plane = av_malloc(s->mb_stride * s->mb_height);
3538 v->n_allocated_blks = s->mb_width + 2;
3539 v->block = av_malloc(sizeof(*v->block) * v->n_allocated_blks);
3540 v->cbp_base = av_malloc(sizeof(v->cbp_base[0]) * 2 * s->mb_stride);
3541 v->cbp = v->cbp_base + s->mb_stride;
3542 v->ttblk_base = av_malloc(sizeof(v->ttblk_base[0]) * 2 * s->mb_stride);
3543 v->ttblk = v->ttblk_base + s->mb_stride;
3544 v->is_intra_base = av_malloc(sizeof(v->is_intra_base[0]) * 2 * s->mb_stride);
3545 v->is_intra = v->is_intra_base + s->mb_stride;
3546 v->luma_mv_base = av_malloc(sizeof(v->luma_mv_base[0]) * 2 * s->mb_stride);
3547 v->luma_mv = v->luma_mv_base + s->mb_stride;
3549 /* allocate block type info in that way so it could be used with s->block_index[] */
3550 v->mb_type_base = av_malloc(s->b8_stride * (s->mb_height * 2 + 1) + s->mb_stride * (s->mb_height + 1) * 2);
3551 v->mb_type[0] = v->mb_type_base + s->b8_stride + 1;
3552 v->mb_type[1] = v->mb_type_base + s->b8_stride * (s->mb_height * 2 + 1) + s->mb_stride + 1;
3553 v->mb_type[2] = v->mb_type[1] + s->mb_stride * (s->mb_height + 1);
3555 /* Init coded blocks info */
3556 if (v->profile == PROFILE_ADVANCED)
3558 // if (alloc_bitplane(&v->over_flags_plane, s->mb_width, s->mb_height) < 0)
3560 // if (alloc_bitplane(&v->ac_pred_plane, s->mb_width, s->mb_height) < 0)
3564 ff_intrax8_common_init(&v->x8,s);
3569 /** Decode a VC1/WMV3 frame
3570 * @todo TODO: Handle VC-1 IDUs (Transport level?)
3572 static int vc1_decode_frame(AVCodecContext *avctx,
3573 void *data, int *data_size,
3576 const uint8_t *buf = avpkt->data;
3577 int buf_size = avpkt->size, n_slices = 0, i;
3578 VC1Context *v = avctx->priv_data;
3579 MpegEncContext *s = &v->s;
3580 AVFrame *pict = data;
3581 uint8_t *buf2 = NULL;
3582 const uint8_t *buf_start = buf;
3589 /* no supplementary picture */
3590 if (buf_size == 0 || (buf_size == 4 && AV_RB32(buf) == VC1_CODE_ENDOFSEQ)) {
3591 /* special case for last picture */
3592 if (s->low_delay==0 && s->next_picture_ptr) {
3593 *pict= *(AVFrame*)s->next_picture_ptr;
3594 s->next_picture_ptr= NULL;
3596 *data_size = sizeof(AVFrame);
3602 /* We need to set current_picture_ptr before reading the header,
3603 * otherwise we cannot store anything in there. */
3604 if (s->current_picture_ptr == NULL || s->current_picture_ptr->f.data[0]) {
3605 int i= ff_find_unused_picture(s, 0);
3606 s->current_picture_ptr= &s->picture[i];
3609 if (s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU){
3610 if (v->profile < PROFILE_ADVANCED)
3611 avctx->pix_fmt = PIX_FMT_VDPAU_WMV3;
3613 avctx->pix_fmt = PIX_FMT_VDPAU_VC1;
3616 //for advanced profile we may need to parse and unescape data
3617 if (avctx->codec_id == CODEC_ID_VC1) {
3619 buf2 = av_mallocz(buf_size + FF_INPUT_BUFFER_PADDING_SIZE);
3621 if(IS_MARKER(AV_RB32(buf))){ /* frame starts with marker and needs to be parsed */
3622 const uint8_t *start, *end, *next;
3626 for(start = buf, end = buf + buf_size; next < end; start = next){
3627 next = find_next_marker(start + 4, end);
3628 size = next - start - 4;
3629 if(size <= 0) continue;
3630 switch(AV_RB32(start)){
3631 case VC1_CODE_FRAME:
3632 if (avctx->hwaccel ||
3633 s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)
3635 buf_size2 = vc1_unescape_buffer(start + 4, size, buf2);
3637 case VC1_CODE_ENTRYPOINT: /* it should be before frame data */
3638 buf_size2 = vc1_unescape_buffer(start + 4, size, buf2);
3639 init_get_bits(&s->gb, buf2, buf_size2*8);
3640 vc1_decode_entry_point(avctx, v, &s->gb);
3642 case VC1_CODE_SLICE: {
3644 slices = av_realloc(slices, sizeof(*slices) * (n_slices+1));
3645 if (!slices) goto err;
3646 slices[n_slices].buf = av_mallocz(buf_size + FF_INPUT_BUFFER_PADDING_SIZE);
3647 if (!slices[n_slices].buf) goto err;
3648 buf_size3 = vc1_unescape_buffer(start + 4, size,
3649 slices[n_slices].buf);
3650 init_get_bits(&slices[n_slices].gb, slices[n_slices].buf,
3652 slices[n_slices].mby_start = get_bits(&slices[n_slices].gb, 9);
3658 }else if(v->interlace && ((buf[0] & 0xC0) == 0xC0)){ /* WVC1 interlaced stores both fields divided by marker */
3659 const uint8_t *divider;
3661 divider = find_next_marker(buf, buf + buf_size);
3662 if((divider == (buf + buf_size)) || AV_RB32(divider) != VC1_CODE_FIELD){
3663 av_log(avctx, AV_LOG_ERROR, "Error in WVC1 interlaced frame\n");
3667 buf_size2 = vc1_unescape_buffer(buf, divider - buf, buf2);
3669 if(!v->warn_interlaced++)
3670 av_log(v->s.avctx, AV_LOG_ERROR, "Interlaced WVC1 support is not implemented\n");
3673 buf_size2 = vc1_unescape_buffer(buf, buf_size, buf2);
3675 init_get_bits(&s->gb, buf2, buf_size2*8);
3677 init_get_bits(&s->gb, buf, buf_size*8);
3679 if (v->res_sprite) {
3680 v->new_sprite = !get_bits1(&s->gb);
3681 v->two_sprites = get_bits1(&s->gb);
3686 // do parse frame header
3687 if(v->profile < PROFILE_ADVANCED) {
3688 if(vc1_parse_frame_header(v, &s->gb) == -1) {
3692 if(vc1_parse_frame_header_adv(v, &s->gb) == -1) {
3697 if (v->res_sprite && s->pict_type!=AV_PICTURE_TYPE_I) {
3698 av_log(v->s.avctx, AV_LOG_WARNING, "Sprite decoder: expected I-frame\n");
3701 // for skipping the frame
3702 s->current_picture.f.pict_type = s->pict_type;
3703 s->current_picture.f.key_frame = s->pict_type == AV_PICTURE_TYPE_I;
3705 /* skip B-frames if we don't have reference frames */
3706 if(s->last_picture_ptr==NULL && (s->pict_type==AV_PICTURE_TYPE_B || s->dropable)){
3709 if( (avctx->skip_frame >= AVDISCARD_NONREF && s->pict_type==AV_PICTURE_TYPE_B)
3710 || (avctx->skip_frame >= AVDISCARD_NONKEY && s->pict_type!=AV_PICTURE_TYPE_I)
3711 || avctx->skip_frame >= AVDISCARD_ALL) {
3715 if(s->next_p_frame_damaged){
3716 if(s->pict_type==AV_PICTURE_TYPE_B)
3719 s->next_p_frame_damaged=0;
3722 if(MPV_frame_start(s, avctx) < 0) {
3726 s->me.qpel_put= s->dsp.put_qpel_pixels_tab;
3727 s->me.qpel_avg= s->dsp.avg_qpel_pixels_tab;
3729 if ((CONFIG_VC1_VDPAU_DECODER)
3730 &&s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)
3731 ff_vdpau_vc1_decode_picture(s, buf_start, (buf + buf_size) - buf_start);
3732 else if (avctx->hwaccel) {
3733 if (avctx->hwaccel->start_frame(avctx, buf, buf_size) < 0)
3735 if (avctx->hwaccel->decode_slice(avctx, buf_start, (buf + buf_size) - buf_start) < 0)
3737 if (avctx->hwaccel->end_frame(avctx) < 0)
3740 ff_er_frame_start(s);
3742 v->bits = buf_size * 8;
3743 for (i = 0; i <= n_slices; i++) {
3744 if (i && get_bits1(&s->gb))
3745 vc1_parse_frame_header_adv(v, &s->gb);
3746 s->start_mb_y = (i == 0) ? 0 : FFMAX(0, slices[i-1].mby_start);
3747 s->end_mb_y = (i == n_slices) ? s->mb_height : FFMIN(s->mb_height, slices[i].mby_start);
3748 vc1_decode_blocks(v);
3749 if (i != n_slices) s->gb = slices[i].gb;
3751 //av_log(s->avctx, AV_LOG_INFO, "Consumed %i/%i bits\n", get_bits_count(&s->gb), s->gb.size_in_bits);
3752 // if(get_bits_count(&s->gb) > buf_size * 8)
3759 assert(s->current_picture.f.pict_type == s->current_picture_ptr->f.pict_type);
3760 assert(s->current_picture.f.pict_type == s->pict_type);
3761 if (s->pict_type == AV_PICTURE_TYPE_B || s->low_delay) {
3762 *pict= *(AVFrame*)s->current_picture_ptr;
3763 } else if (s->last_picture_ptr != NULL) {
3764 *pict= *(AVFrame*)s->last_picture_ptr;
3767 if(s->last_picture_ptr || s->low_delay){
3768 *data_size = sizeof(AVFrame);
3769 ff_print_debug_info(s, pict);
3774 vc1_parse_sprites(v, &s->gb);
3776 for (i = 0; i < n_slices; i++)
3777 av_free(slices[i].buf);
3783 for (i = 0; i < n_slices; i++)
3784 av_free(slices[i].buf);
3790 /** Close a VC1/WMV3 decoder
3791 * @warning Initial try at using MpegEncContext stuff
3793 static av_cold int vc1_decode_end(AVCodecContext *avctx)
3795 VC1Context *v = avctx->priv_data;
3797 av_freep(&v->hrd_rate);
3798 av_freep(&v->hrd_buffer);
3799 MPV_common_end(&v->s);
3800 av_freep(&v->mv_type_mb_plane);
3801 av_freep(&v->direct_mb_plane);
3802 av_freep(&v->acpred_plane);
3803 av_freep(&v->over_flags_plane);
3804 av_freep(&v->mb_type_base);
3805 av_freep(&v->block);
3806 av_freep(&v->cbp_base);
3807 av_freep(&v->ttblk_base);
3808 av_freep(&v->is_intra_base); // FIXME use v->mb_type[]
3809 av_freep(&v->luma_mv_base);
3810 ff_intrax8_common_end(&v->x8);
3814 static const AVProfile profiles[] = {
3815 { FF_PROFILE_VC1_SIMPLE, "Simple" },
3816 { FF_PROFILE_VC1_MAIN, "Main" },
3817 { FF_PROFILE_VC1_COMPLEX, "Complex" },
3818 { FF_PROFILE_VC1_ADVANCED, "Advanced" },
3819 { FF_PROFILE_UNKNOWN },
3822 AVCodec ff_vc1_decoder = {
3824 .type = AVMEDIA_TYPE_VIDEO,
3826 .priv_data_size = sizeof(VC1Context),
3827 .init = vc1_decode_init,
3828 .close = vc1_decode_end,
3829 .decode = vc1_decode_frame,
3830 .capabilities = CODEC_CAP_DR1 | CODEC_CAP_DELAY,
3831 .long_name = NULL_IF_CONFIG_SMALL("SMPTE VC-1"),
3832 .pix_fmts = ff_hwaccel_pixfmt_list_420,
3833 .profiles = NULL_IF_CONFIG_SMALL(profiles)
3836 #if CONFIG_WMV3_DECODER
3837 AVCodec ff_wmv3_decoder = {
3839 .type = AVMEDIA_TYPE_VIDEO,
3840 .id = CODEC_ID_WMV3,
3841 .priv_data_size = sizeof(VC1Context),
3842 .init = vc1_decode_init,
3843 .close = vc1_decode_end,
3844 .decode = vc1_decode_frame,
3845 .capabilities = CODEC_CAP_DR1 | CODEC_CAP_DELAY,
3846 .long_name = NULL_IF_CONFIG_SMALL("Windows Media Video 9"),
3847 .pix_fmts = ff_hwaccel_pixfmt_list_420,
3848 .profiles = NULL_IF_CONFIG_SMALL(profiles)
3852 #if CONFIG_WMV3_VDPAU_DECODER
3853 AVCodec ff_wmv3_vdpau_decoder = {
3854 .name = "wmv3_vdpau",
3855 .type = AVMEDIA_TYPE_VIDEO,
3856 .id = CODEC_ID_WMV3,
3857 .priv_data_size = sizeof(VC1Context),
3858 .init = vc1_decode_init,
3859 .close = vc1_decode_end,
3860 .decode = vc1_decode_frame,
3861 .capabilities = CODEC_CAP_DR1 | CODEC_CAP_DELAY | CODEC_CAP_HWACCEL_VDPAU,
3862 .long_name = NULL_IF_CONFIG_SMALL("Windows Media Video 9 VDPAU"),
3863 .pix_fmts = (const enum PixelFormat[]){PIX_FMT_VDPAU_WMV3, PIX_FMT_NONE},
3864 .profiles = NULL_IF_CONFIG_SMALL(profiles)
3868 #if CONFIG_VC1_VDPAU_DECODER
3869 AVCodec ff_vc1_vdpau_decoder = {
3870 .name = "vc1_vdpau",
3871 .type = AVMEDIA_TYPE_VIDEO,
3873 .priv_data_size = sizeof(VC1Context),
3874 .init = vc1_decode_init,
3875 .close = vc1_decode_end,
3876 .decode = vc1_decode_frame,
3877 .capabilities = CODEC_CAP_DR1 | CODEC_CAP_DELAY | CODEC_CAP_HWACCEL_VDPAU,
3878 .long_name = NULL_IF_CONFIG_SMALL("SMPTE VC-1 VDPAU"),
3879 .pix_fmts = (const enum PixelFormat[]){PIX_FMT_VDPAU_VC1, PIX_FMT_NONE},
3880 .profiles = NULL_IF_CONFIG_SMALL(profiles)