Libav
rv34.c
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1 /*
2  * RV30/40 decoder common data
3  * Copyright (c) 2007 Mike Melanson, Konstantin Shishkov
4  *
5  * This file is part of Libav.
6  *
7  * Libav is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * Libav is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with Libav; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
27 #include "libavutil/internal.h"
28 
29 #include "avcodec.h"
30 #include "error_resilience.h"
31 #include "mpegutils.h"
32 #include "mpegvideo.h"
33 #include "golomb.h"
34 #include "internal.h"
35 #include "mathops.h"
36 #include "mpeg_er.h"
37 #include "qpeldsp.h"
38 #include "rectangle.h"
39 #include "thread.h"
40 
41 #include "rv34vlc.h"
42 #include "rv34data.h"
43 #include "rv34.h"
44 
45 static inline void ZERO8x2(void* dst, int stride)
46 {
47  fill_rectangle(dst, 1, 2, stride, 0, 4);
48  fill_rectangle(((uint8_t*)(dst))+4, 1, 2, stride, 0, 4);
49 }
50 
52 static const int rv34_mb_type_to_lavc[12] = {
65 };
66 
67 
69 
70 static int rv34_decode_mv(RV34DecContext *r, int block_type);
71 
77 static const int table_offs[] = {
78  0, 1818, 3622, 4144, 4698, 5234, 5804, 5868, 5900, 5932,
79  5996, 6252, 6316, 6348, 6380, 7674, 8944, 10274, 11668, 12250,
80  14060, 15846, 16372, 16962, 17512, 18148, 18180, 18212, 18244, 18308,
81  18564, 18628, 18660, 18692, 20036, 21314, 22648, 23968, 24614, 26384,
82  28190, 28736, 29366, 29938, 30608, 30640, 30672, 30704, 30768, 31024,
83  31088, 31120, 31184, 32570, 33898, 35236, 36644, 37286, 39020, 40802,
84  41368, 42052, 42692, 43348, 43380, 43412, 43444, 43476, 43604, 43668,
85  43700, 43732, 45100, 46430, 47778, 49160, 49802, 51550, 53340, 53972,
86  54648, 55348, 55994, 56122, 56154, 56186, 56218, 56346, 56410, 56442,
87  56474, 57878, 59290, 60636, 62036, 62682, 64460, 64524, 64588, 64716,
88  64844, 66076, 67466, 67978, 68542, 69064, 69648, 70296, 72010, 72074,
89  72138, 72202, 72330, 73572, 74936, 75454, 76030, 76566, 77176, 77822,
90  79582, 79646, 79678, 79742, 79870, 81180, 82536, 83064, 83672, 84242,
91  84934, 85576, 87384, 87448, 87480, 87544, 87672, 88982, 90340, 90902,
92  91598, 92182, 92846, 93488, 95246, 95278, 95310, 95374, 95502, 96878,
93  98266, 98848, 99542, 100234, 100884, 101524, 103320, 103352, 103384, 103416,
94  103480, 104874, 106222, 106910, 107584, 108258, 108902, 109544, 111366, 111398,
95  111430, 111462, 111494, 112878, 114320, 114988, 115660, 116310, 116950, 117592
96 };
97 
98 static VLC_TYPE table_data[117592][2];
99 
108 static void rv34_gen_vlc(const uint8_t *bits, int size, VLC *vlc, const uint8_t *insyms,
109  const int num)
110 {
111  int i;
112  int counts[17] = {0}, codes[17];
113  uint16_t cw[MAX_VLC_SIZE], syms[MAX_VLC_SIZE];
115  int maxbits = 0, realsize = 0;
116 
117  for(i = 0; i < size; i++){
118  if(bits[i]){
119  bits2[realsize] = bits[i];
120  syms[realsize] = insyms ? insyms[i] : i;
121  realsize++;
122  maxbits = FFMAX(maxbits, bits[i]);
123  counts[bits[i]]++;
124  }
125  }
126 
127  codes[0] = 0;
128  for(i = 0; i < 16; i++)
129  codes[i+1] = (codes[i] + counts[i]) << 1;
130  for(i = 0; i < realsize; i++)
131  cw[i] = codes[bits2[i]]++;
132 
133  vlc->table = &table_data[table_offs[num]];
134  vlc->table_allocated = table_offs[num + 1] - table_offs[num];
135  ff_init_vlc_sparse(vlc, FFMIN(maxbits, 9), realsize,
136  bits2, 1, 1,
137  cw, 2, 2,
138  syms, 2, 2, INIT_VLC_USE_NEW_STATIC);
139 }
140 
144 static av_cold void rv34_init_tables(void)
145 {
146  int i, j, k;
147 
148  for(i = 0; i < NUM_INTRA_TABLES; i++){
149  for(j = 0; j < 2; j++){
150  rv34_gen_vlc(rv34_table_intra_cbppat [i][j], CBPPAT_VLC_SIZE, &intra_vlcs[i].cbppattern[j], NULL, 19*i + 0 + j);
151  rv34_gen_vlc(rv34_table_intra_secondpat[i][j], OTHERBLK_VLC_SIZE, &intra_vlcs[i].second_pattern[j], NULL, 19*i + 2 + j);
152  rv34_gen_vlc(rv34_table_intra_thirdpat [i][j], OTHERBLK_VLC_SIZE, &intra_vlcs[i].third_pattern[j], NULL, 19*i + 4 + j);
153  for(k = 0; k < 4; k++){
154  rv34_gen_vlc(rv34_table_intra_cbp[i][j+k*2], CBP_VLC_SIZE, &intra_vlcs[i].cbp[j][k], rv34_cbp_code, 19*i + 6 + j*4 + k);
155  }
156  }
157  for(j = 0; j < 4; j++){
158  rv34_gen_vlc(rv34_table_intra_firstpat[i][j], FIRSTBLK_VLC_SIZE, &intra_vlcs[i].first_pattern[j], NULL, 19*i + 14 + j);
159  }
160  rv34_gen_vlc(rv34_intra_coeff[i], COEFF_VLC_SIZE, &intra_vlcs[i].coefficient, NULL, 19*i + 18);
161  }
162 
163  for(i = 0; i < NUM_INTER_TABLES; i++){
164  rv34_gen_vlc(rv34_inter_cbppat[i], CBPPAT_VLC_SIZE, &inter_vlcs[i].cbppattern[0], NULL, i*12 + 95);
165  for(j = 0; j < 4; j++){
166  rv34_gen_vlc(rv34_inter_cbp[i][j], CBP_VLC_SIZE, &inter_vlcs[i].cbp[0][j], rv34_cbp_code, i*12 + 96 + j);
167  }
168  for(j = 0; j < 2; j++){
169  rv34_gen_vlc(rv34_table_inter_firstpat [i][j], FIRSTBLK_VLC_SIZE, &inter_vlcs[i].first_pattern[j], NULL, i*12 + 100 + j);
170  rv34_gen_vlc(rv34_table_inter_secondpat[i][j], OTHERBLK_VLC_SIZE, &inter_vlcs[i].second_pattern[j], NULL, i*12 + 102 + j);
171  rv34_gen_vlc(rv34_table_inter_thirdpat [i][j], OTHERBLK_VLC_SIZE, &inter_vlcs[i].third_pattern[j], NULL, i*12 + 104 + j);
172  }
173  rv34_gen_vlc(rv34_inter_coeff[i], COEFF_VLC_SIZE, &inter_vlcs[i].coefficient, NULL, i*12 + 106);
174  }
175 }
176  // vlc group
178 
187 static int rv34_decode_cbp(GetBitContext *gb, RV34VLC *vlc, int table)
188 {
189  int pattern, code, cbp=0;
190  int ones;
191  static const int cbp_masks[3] = {0x100000, 0x010000, 0x110000};
192  static const int shifts[4] = { 0, 2, 8, 10 };
193  const int *curshift = shifts;
194  int i, t, mask;
195 
196  code = get_vlc2(gb, vlc->cbppattern[table].table, 9, 2);
197  pattern = code & 0xF;
198  code >>= 4;
199 
200  ones = rv34_count_ones[pattern];
201 
202  for(mask = 8; mask; mask >>= 1, curshift++){
203  if(pattern & mask)
204  cbp |= get_vlc2(gb, vlc->cbp[table][ones].table, vlc->cbp[table][ones].bits, 1) << curshift[0];
205  }
206 
207  for(i = 0; i < 4; i++){
208  t = (modulo_three_table[code] >> (6 - 2*i)) & 3;
209  if(t == 1)
210  cbp |= cbp_masks[get_bits1(gb)] << i;
211  if(t == 2)
212  cbp |= cbp_masks[2] << i;
213  }
214  return cbp;
215 }
216 
220 static inline void decode_coeff(int16_t *dst, int coef, int esc, GetBitContext *gb, VLC* vlc, int q)
221 {
222  if(coef){
223  if(coef == esc){
224  coef = get_vlc2(gb, vlc->table, 9, 2);
225  if(coef > 23){
226  coef -= 23;
227  coef = 22 + ((1 << coef) | get_bits(gb, coef));
228  }
229  coef += esc;
230  }
231  if(get_bits1(gb))
232  coef = -coef;
233  *dst = (coef*q + 8) >> 4;
234  }
235 }
236 
240 static inline void decode_subblock(int16_t *dst, int code, const int is_block2, GetBitContext *gb, VLC *vlc, int q)
241 {
242  int flags = modulo_three_table[code];
243 
244  decode_coeff( dst+0*4+0, (flags >> 6) , 3, gb, vlc, q);
245  if(is_block2){
246  decode_coeff(dst+1*4+0, (flags >> 4) & 3, 2, gb, vlc, q);
247  decode_coeff(dst+0*4+1, (flags >> 2) & 3, 2, gb, vlc, q);
248  }else{
249  decode_coeff(dst+0*4+1, (flags >> 4) & 3, 2, gb, vlc, q);
250  decode_coeff(dst+1*4+0, (flags >> 2) & 3, 2, gb, vlc, q);
251  }
252  decode_coeff( dst+1*4+1, (flags >> 0) & 3, 2, gb, vlc, q);
253 }
254 
258 static inline void decode_subblock1(int16_t *dst, int code, GetBitContext *gb, VLC *vlc, int q)
259 {
260  int coeff = modulo_three_table[code] >> 6;
261  decode_coeff(dst, coeff, 3, gb, vlc, q);
262 }
263 
264 static inline void decode_subblock3(int16_t *dst, int code, GetBitContext *gb, VLC *vlc,
265  int q_dc, int q_ac1, int q_ac2)
266 {
267  int flags = modulo_three_table[code];
268 
269  decode_coeff(dst+0*4+0, (flags >> 6) , 3, gb, vlc, q_dc);
270  decode_coeff(dst+0*4+1, (flags >> 4) & 3, 2, gb, vlc, q_ac1);
271  decode_coeff(dst+1*4+0, (flags >> 2) & 3, 2, gb, vlc, q_ac1);
272  decode_coeff(dst+1*4+1, (flags >> 0) & 3, 2, gb, vlc, q_ac2);
273 }
274 
286 static int rv34_decode_block(int16_t *dst, GetBitContext *gb, RV34VLC *rvlc, int fc, int sc, int q_dc, int q_ac1, int q_ac2)
287 {
288  int code, pattern, has_ac = 1;
289 
290  code = get_vlc2(gb, rvlc->first_pattern[fc].table, 9, 2);
291 
292  pattern = code & 0x7;
293 
294  code >>= 3;
295 
296  if (modulo_three_table[code] & 0x3F) {
297  decode_subblock3(dst, code, gb, &rvlc->coefficient, q_dc, q_ac1, q_ac2);
298  } else {
299  decode_subblock1(dst, code, gb, &rvlc->coefficient, q_dc);
300  if (!pattern)
301  return 0;
302  has_ac = 0;
303  }
304 
305  if(pattern & 4){
306  code = get_vlc2(gb, rvlc->second_pattern[sc].table, 9, 2);
307  decode_subblock(dst + 4*0+2, code, 0, gb, &rvlc->coefficient, q_ac2);
308  }
309  if(pattern & 2){ // Looks like coefficients 1 and 2 are swapped for this block
310  code = get_vlc2(gb, rvlc->second_pattern[sc].table, 9, 2);
311  decode_subblock(dst + 4*2+0, code, 1, gb, &rvlc->coefficient, q_ac2);
312  }
313  if(pattern & 1){
314  code = get_vlc2(gb, rvlc->third_pattern[sc].table, 9, 2);
315  decode_subblock(dst + 4*2+2, code, 0, gb, &rvlc->coefficient, q_ac2);
316  }
317  return has_ac | pattern;
318 }
319 
330 {
331  int i;
332  for(i = 0; i < 5; i++)
333  if(rv34_mb_max_sizes[i] >= mb_size - 1)
334  break;
335  return rv34_mb_bits_sizes[i];
336 }
337 
341 static inline RV34VLC* choose_vlc_set(int quant, int mod, int type)
342 {
343  if(mod == 2 && quant < 19) quant += 10;
344  else if(mod && quant < 26) quant += 5;
345  return type ? &inter_vlcs[rv34_quant_to_vlc_set[1][av_clip(quant, 0, 30)]]
346  : &intra_vlcs[rv34_quant_to_vlc_set[0][av_clip(quant, 0, 30)]];
347 }
348 
352 static int rv34_decode_intra_mb_header(RV34DecContext *r, int8_t *intra_types)
353 {
354  MpegEncContext *s = &r->s;
355  GetBitContext *gb = &s->gb;
356  int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
357  int t;
358 
359  r->is16 = get_bits1(gb);
360  if(r->is16){
363  t = get_bits(gb, 2);
364  fill_rectangle(intra_types, 4, 4, r->intra_types_stride, t, sizeof(intra_types[0]));
365  r->luma_vlc = 2;
366  }else{
367  if(!r->rv30){
368  if(!get_bits1(gb))
369  av_log(s->avctx, AV_LOG_ERROR, "Need DQUANT\n");
370  }
373  if(r->decode_intra_types(r, gb, intra_types) < 0)
374  return -1;
375  r->luma_vlc = 1;
376  }
377 
378  r->chroma_vlc = 0;
379  r->cur_vlcs = choose_vlc_set(r->si.quant, r->si.vlc_set, 0);
380 
381  return rv34_decode_cbp(gb, r->cur_vlcs, r->is16);
382 }
383 
387 static int rv34_decode_inter_mb_header(RV34DecContext *r, int8_t *intra_types)
388 {
389  MpegEncContext *s = &r->s;
390  GetBitContext *gb = &s->gb;
391  int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
392  int i, t;
393 
394  r->block_type = r->decode_mb_info(r);
395  if(r->block_type == -1)
396  return -1;
398  r->mb_type[mb_pos] = r->block_type;
399  if(r->block_type == RV34_MB_SKIP){
400  if(s->pict_type == AV_PICTURE_TYPE_P)
401  r->mb_type[mb_pos] = RV34_MB_P_16x16;
402  if(s->pict_type == AV_PICTURE_TYPE_B)
403  r->mb_type[mb_pos] = RV34_MB_B_DIRECT;
404  }
405  r->is16 = !!IS_INTRA16x16(s->current_picture_ptr->mb_type[mb_pos]);
406  rv34_decode_mv(r, r->block_type);
407  if(r->block_type == RV34_MB_SKIP){
408  fill_rectangle(intra_types, 4, 4, r->intra_types_stride, 0, sizeof(intra_types[0]));
409  return 0;
410  }
411  r->chroma_vlc = 1;
412  r->luma_vlc = 0;
413 
414  if(IS_INTRA(s->current_picture_ptr->mb_type[mb_pos])){
415  if(r->is16){
416  t = get_bits(gb, 2);
417  fill_rectangle(intra_types, 4, 4, r->intra_types_stride, t, sizeof(intra_types[0]));
418  r->luma_vlc = 2;
419  }else{
420  if(r->decode_intra_types(r, gb, intra_types) < 0)
421  return -1;
422  r->luma_vlc = 1;
423  }
424  r->chroma_vlc = 0;
425  r->cur_vlcs = choose_vlc_set(r->si.quant, r->si.vlc_set, 0);
426  }else{
427  for(i = 0; i < 16; i++)
428  intra_types[(i & 3) + (i>>2) * r->intra_types_stride] = 0;
429  r->cur_vlcs = choose_vlc_set(r->si.quant, r->si.vlc_set, 1);
430  if(r->mb_type[mb_pos] == RV34_MB_P_MIX16x16){
431  r->is16 = 1;
432  r->chroma_vlc = 1;
433  r->luma_vlc = 2;
434  r->cur_vlcs = choose_vlc_set(r->si.quant, r->si.vlc_set, 0);
435  }
436  }
437 
438  return rv34_decode_cbp(gb, r->cur_vlcs, r->is16);
439 }
440  //bitstream functions
442 
449 static const uint8_t part_sizes_w[RV34_MB_TYPES] = { 2, 2, 2, 1, 2, 2, 2, 2, 2, 1, 2, 2 };
450 
452 static const uint8_t part_sizes_h[RV34_MB_TYPES] = { 2, 2, 2, 1, 2, 2, 2, 2, 1, 2, 2, 2 };
453 
455 static const uint8_t avail_indexes[4] = { 6, 7, 10, 11 };
456 
464 static void rv34_pred_mv(RV34DecContext *r, int block_type, int subblock_no, int dmv_no)
465 {
466  MpegEncContext *s = &r->s;
467  int mv_pos = s->mb_x * 2 + s->mb_y * 2 * s->b8_stride;
468  int A[2] = {0}, B[2], C[2];
469  int i, j;
470  int mx, my;
471  int* avail = r->avail_cache + avail_indexes[subblock_no];
472  int c_off = part_sizes_w[block_type];
473 
474  mv_pos += (subblock_no & 1) + (subblock_no >> 1)*s->b8_stride;
475  if(subblock_no == 3)
476  c_off = -1;
477 
478  if(avail[-1]){
479  A[0] = s->current_picture_ptr->motion_val[0][mv_pos-1][0];
480  A[1] = s->current_picture_ptr->motion_val[0][mv_pos-1][1];
481  }
482  if(avail[-4]){
483  B[0] = s->current_picture_ptr->motion_val[0][mv_pos-s->b8_stride][0];
484  B[1] = s->current_picture_ptr->motion_val[0][mv_pos-s->b8_stride][1];
485  }else{
486  B[0] = A[0];
487  B[1] = A[1];
488  }
489  if(!avail[c_off-4]){
490  if(avail[-4] && (avail[-1] || r->rv30)){
491  C[0] = s->current_picture_ptr->motion_val[0][mv_pos-s->b8_stride-1][0];
492  C[1] = s->current_picture_ptr->motion_val[0][mv_pos-s->b8_stride-1][1];
493  }else{
494  C[0] = A[0];
495  C[1] = A[1];
496  }
497  }else{
498  C[0] = s->current_picture_ptr->motion_val[0][mv_pos-s->b8_stride+c_off][0];
499  C[1] = s->current_picture_ptr->motion_val[0][mv_pos-s->b8_stride+c_off][1];
500  }
501  mx = mid_pred(A[0], B[0], C[0]);
502  my = mid_pred(A[1], B[1], C[1]);
503  mx += r->dmv[dmv_no][0];
504  my += r->dmv[dmv_no][1];
505  for(j = 0; j < part_sizes_h[block_type]; j++){
506  for(i = 0; i < part_sizes_w[block_type]; i++){
507  s->current_picture_ptr->motion_val[0][mv_pos + i + j*s->b8_stride][0] = mx;
508  s->current_picture_ptr->motion_val[0][mv_pos + i + j*s->b8_stride][1] = my;
509  }
510  }
511 }
512 
513 #define GET_PTS_DIFF(a, b) ((a - b + 8192) & 0x1FFF)
514 
518 static int calc_add_mv(RV34DecContext *r, int dir, int val)
519 {
520  int mul = dir ? -r->mv_weight2 : r->mv_weight1;
521 
522  return (val * mul + 0x2000) >> 14;
523 }
524 
528 static inline void rv34_pred_b_vector(int A[2], int B[2], int C[2],
529  int A_avail, int B_avail, int C_avail,
530  int *mx, int *my)
531 {
532  if(A_avail + B_avail + C_avail != 3){
533  *mx = A[0] + B[0] + C[0];
534  *my = A[1] + B[1] + C[1];
535  if(A_avail + B_avail + C_avail == 2){
536  *mx /= 2;
537  *my /= 2;
538  }
539  }else{
540  *mx = mid_pred(A[0], B[0], C[0]);
541  *my = mid_pred(A[1], B[1], C[1]);
542  }
543 }
544 
548 static void rv34_pred_mv_b(RV34DecContext *r, int block_type, int dir)
549 {
550  MpegEncContext *s = &r->s;
551  int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
552  int mv_pos = s->mb_x * 2 + s->mb_y * 2 * s->b8_stride;
553  int A[2] = { 0 }, B[2] = { 0 }, C[2] = { 0 };
554  int has_A = 0, has_B = 0, has_C = 0;
555  int mx, my;
556  int i, j;
557  Picture *cur_pic = s->current_picture_ptr;
558  const int mask = dir ? MB_TYPE_L1 : MB_TYPE_L0;
559  int type = cur_pic->mb_type[mb_pos];
560 
561  if((r->avail_cache[6-1] & type) & mask){
562  A[0] = cur_pic->motion_val[dir][mv_pos - 1][0];
563  A[1] = cur_pic->motion_val[dir][mv_pos - 1][1];
564  has_A = 1;
565  }
566  if((r->avail_cache[6-4] & type) & mask){
567  B[0] = cur_pic->motion_val[dir][mv_pos - s->b8_stride][0];
568  B[1] = cur_pic->motion_val[dir][mv_pos - s->b8_stride][1];
569  has_B = 1;
570  }
571  if(r->avail_cache[6-4] && (r->avail_cache[6-2] & type) & mask){
572  C[0] = cur_pic->motion_val[dir][mv_pos - s->b8_stride + 2][0];
573  C[1] = cur_pic->motion_val[dir][mv_pos - s->b8_stride + 2][1];
574  has_C = 1;
575  }else if((s->mb_x+1) == s->mb_width && (r->avail_cache[6-5] & type) & mask){
576  C[0] = cur_pic->motion_val[dir][mv_pos - s->b8_stride - 1][0];
577  C[1] = cur_pic->motion_val[dir][mv_pos - s->b8_stride - 1][1];
578  has_C = 1;
579  }
580 
581  rv34_pred_b_vector(A, B, C, has_A, has_B, has_C, &mx, &my);
582 
583  mx += r->dmv[dir][0];
584  my += r->dmv[dir][1];
585 
586  for(j = 0; j < 2; j++){
587  for(i = 0; i < 2; i++){
588  cur_pic->motion_val[dir][mv_pos + i + j*s->b8_stride][0] = mx;
589  cur_pic->motion_val[dir][mv_pos + i + j*s->b8_stride][1] = my;
590  }
591  }
592  if(block_type == RV34_MB_B_BACKWARD || block_type == RV34_MB_B_FORWARD){
593  ZERO8x2(cur_pic->motion_val[!dir][mv_pos], s->b8_stride);
594  }
595 }
596 
600 static void rv34_pred_mv_rv3(RV34DecContext *r, int block_type, int dir)
601 {
602  MpegEncContext *s = &r->s;
603  int mv_pos = s->mb_x * 2 + s->mb_y * 2 * s->b8_stride;
604  int A[2] = {0}, B[2], C[2];
605  int i, j, k;
606  int mx, my;
607  int* avail = r->avail_cache + avail_indexes[0];
608 
609  if(avail[-1]){
610  A[0] = s->current_picture_ptr->motion_val[0][mv_pos - 1][0];
611  A[1] = s->current_picture_ptr->motion_val[0][mv_pos - 1][1];
612  }
613  if(avail[-4]){
614  B[0] = s->current_picture_ptr->motion_val[0][mv_pos - s->b8_stride][0];
615  B[1] = s->current_picture_ptr->motion_val[0][mv_pos - s->b8_stride][1];
616  }else{
617  B[0] = A[0];
618  B[1] = A[1];
619  }
620  if(!avail[-4 + 2]){
621  if(avail[-4] && (avail[-1])){
622  C[0] = s->current_picture_ptr->motion_val[0][mv_pos - s->b8_stride - 1][0];
623  C[1] = s->current_picture_ptr->motion_val[0][mv_pos - s->b8_stride - 1][1];
624  }else{
625  C[0] = A[0];
626  C[1] = A[1];
627  }
628  }else{
629  C[0] = s->current_picture_ptr->motion_val[0][mv_pos - s->b8_stride + 2][0];
630  C[1] = s->current_picture_ptr->motion_val[0][mv_pos - s->b8_stride + 2][1];
631  }
632  mx = mid_pred(A[0], B[0], C[0]);
633  my = mid_pred(A[1], B[1], C[1]);
634  mx += r->dmv[0][0];
635  my += r->dmv[0][1];
636  for(j = 0; j < 2; j++){
637  for(i = 0; i < 2; i++){
638  for(k = 0; k < 2; k++){
639  s->current_picture_ptr->motion_val[k][mv_pos + i + j*s->b8_stride][0] = mx;
640  s->current_picture_ptr->motion_val[k][mv_pos + i + j*s->b8_stride][1] = my;
641  }
642  }
643  }
644 }
645 
646 static const int chroma_coeffs[3] = { 0, 3, 5 };
647 
663 static inline void rv34_mc(RV34DecContext *r, const int block_type,
664  const int xoff, const int yoff, int mv_off,
665  const int width, const int height, int dir,
666  const int thirdpel, int weighted,
667  qpel_mc_func (*qpel_mc)[16],
669 {
670  MpegEncContext *s = &r->s;
671  uint8_t *Y, *U, *V, *srcY, *srcU, *srcV;
672  int dxy, mx, my, umx, umy, lx, ly, uvmx, uvmy, src_x, src_y, uvsrc_x, uvsrc_y;
673  int mv_pos = s->mb_x * 2 + s->mb_y * 2 * s->b8_stride + mv_off;
674  int is16x16 = 1;
675 
676  if(thirdpel){
677  int chroma_mx, chroma_my;
678  mx = (s->current_picture_ptr->motion_val[dir][mv_pos][0] + (3 << 24)) / 3 - (1 << 24);
679  my = (s->current_picture_ptr->motion_val[dir][mv_pos][1] + (3 << 24)) / 3 - (1 << 24);
680  lx = (s->current_picture_ptr->motion_val[dir][mv_pos][0] + (3 << 24)) % 3;
681  ly = (s->current_picture_ptr->motion_val[dir][mv_pos][1] + (3 << 24)) % 3;
682  chroma_mx = s->current_picture_ptr->motion_val[dir][mv_pos][0] / 2;
683  chroma_my = s->current_picture_ptr->motion_val[dir][mv_pos][1] / 2;
684  umx = (chroma_mx + (3 << 24)) / 3 - (1 << 24);
685  umy = (chroma_my + (3 << 24)) / 3 - (1 << 24);
686  uvmx = chroma_coeffs[(chroma_mx + (3 << 24)) % 3];
687  uvmy = chroma_coeffs[(chroma_my + (3 << 24)) % 3];
688  }else{
689  int cx, cy;
690  mx = s->current_picture_ptr->motion_val[dir][mv_pos][0] >> 2;
691  my = s->current_picture_ptr->motion_val[dir][mv_pos][1] >> 2;
692  lx = s->current_picture_ptr->motion_val[dir][mv_pos][0] & 3;
693  ly = s->current_picture_ptr->motion_val[dir][mv_pos][1] & 3;
694  cx = s->current_picture_ptr->motion_val[dir][mv_pos][0] / 2;
695  cy = s->current_picture_ptr->motion_val[dir][mv_pos][1] / 2;
696  umx = cx >> 2;
697  umy = cy >> 2;
698  uvmx = (cx & 3) << 1;
699  uvmy = (cy & 3) << 1;
700  //due to some flaw RV40 uses the same MC compensation routine for H2V2 and H3V3
701  if(uvmx == 6 && uvmy == 6)
702  uvmx = uvmy = 4;
703  }
704 
706  /* wait for the referenced mb row to be finished */
707  int mb_row = s->mb_y + ((yoff + my + 5 + 8 * height) >> 4);
708  ThreadFrame *f = dir ? &s->next_picture_ptr->tf : &s->last_picture_ptr->tf;
709  ff_thread_await_progress(f, mb_row, 0);
710  }
711 
712  dxy = ly*4 + lx;
713  srcY = dir ? s->next_picture_ptr->f->data[0] : s->last_picture_ptr->f->data[0];
714  srcU = dir ? s->next_picture_ptr->f->data[1] : s->last_picture_ptr->f->data[1];
715  srcV = dir ? s->next_picture_ptr->f->data[2] : s->last_picture_ptr->f->data[2];
716  src_x = s->mb_x * 16 + xoff + mx;
717  src_y = s->mb_y * 16 + yoff + my;
718  uvsrc_x = s->mb_x * 8 + (xoff >> 1) + umx;
719  uvsrc_y = s->mb_y * 8 + (yoff >> 1) + umy;
720  srcY += src_y * s->linesize + src_x;
721  srcU += uvsrc_y * s->uvlinesize + uvsrc_x;
722  srcV += uvsrc_y * s->uvlinesize + uvsrc_x;
723  if(s->h_edge_pos - (width << 3) < 6 || s->v_edge_pos - (height << 3) < 6 ||
724  (unsigned)(src_x - !!lx*2) > s->h_edge_pos - !!lx*2 - (width <<3) - 4 ||
725  (unsigned)(src_y - !!ly*2) > s->v_edge_pos - !!ly*2 - (height<<3) - 4) {
726  uint8_t *uvbuf = s->edge_emu_buffer + 22 * s->linesize;
727 
728  srcY -= 2 + 2*s->linesize;
730  s->linesize, s->linesize,
731  (width << 3) + 6, (height << 3) + 6,
732  src_x - 2, src_y - 2, s->h_edge_pos, s->v_edge_pos);
733  srcY = s->edge_emu_buffer + 2 + 2*s->linesize;
734  s->vdsp.emulated_edge_mc(uvbuf, srcU,
735  s->uvlinesize,s->uvlinesize,
736  (width << 2) + 1, (height << 2) + 1,
737  uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, s->v_edge_pos >> 1);
738  s->vdsp.emulated_edge_mc(uvbuf + 16, srcV,
739  s->uvlinesize, s->uvlinesize,
740  (width << 2) + 1, (height << 2) + 1,
741  uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, s->v_edge_pos >> 1);
742  srcU = uvbuf;
743  srcV = uvbuf + 16;
744  }
745  if(!weighted){
746  Y = s->dest[0] + xoff + yoff *s->linesize;
747  U = s->dest[1] + (xoff>>1) + (yoff>>1)*s->uvlinesize;
748  V = s->dest[2] + (xoff>>1) + (yoff>>1)*s->uvlinesize;
749  }else{
750  Y = r->tmp_b_block_y [dir] + xoff + yoff *s->linesize;
751  U = r->tmp_b_block_uv[dir*2] + (xoff>>1) + (yoff>>1)*s->uvlinesize;
752  V = r->tmp_b_block_uv[dir*2+1] + (xoff>>1) + (yoff>>1)*s->uvlinesize;
753  }
754 
755  if(block_type == RV34_MB_P_16x8){
756  qpel_mc[1][dxy](Y, srcY, s->linesize);
757  Y += 8;
758  srcY += 8;
759  }else if(block_type == RV34_MB_P_8x16){
760  qpel_mc[1][dxy](Y, srcY, s->linesize);
761  Y += 8 * s->linesize;
762  srcY += 8 * s->linesize;
763  }
764  is16x16 = (block_type != RV34_MB_P_8x8) && (block_type != RV34_MB_P_16x8) && (block_type != RV34_MB_P_8x16);
765  qpel_mc[!is16x16][dxy](Y, srcY, s->linesize);
766  chroma_mc[2-width] (U, srcU, s->uvlinesize, height*4, uvmx, uvmy);
767  chroma_mc[2-width] (V, srcV, s->uvlinesize, height*4, uvmx, uvmy);
768 }
769 
770 static void rv34_mc_1mv(RV34DecContext *r, const int block_type,
771  const int xoff, const int yoff, int mv_off,
772  const int width, const int height, int dir)
773 {
774  rv34_mc(r, block_type, xoff, yoff, mv_off, width, height, dir, r->rv30, 0,
775  r->rdsp.put_pixels_tab,
777 }
778 
779 static void rv4_weight(RV34DecContext *r)
780 {
782  r->tmp_b_block_y[0],
783  r->tmp_b_block_y[1],
784  r->weight1,
785  r->weight2,
786  r->s.linesize);
788  r->tmp_b_block_uv[0],
789  r->tmp_b_block_uv[2],
790  r->weight1,
791  r->weight2,
792  r->s.uvlinesize);
794  r->tmp_b_block_uv[1],
795  r->tmp_b_block_uv[3],
796  r->weight1,
797  r->weight2,
798  r->s.uvlinesize);
799 }
800 
801 static void rv34_mc_2mv(RV34DecContext *r, const int block_type)
802 {
803  int weighted = !r->rv30 && block_type != RV34_MB_B_BIDIR && r->weight1 != 8192;
804 
805  rv34_mc(r, block_type, 0, 0, 0, 2, 2, 0, r->rv30, weighted,
806  r->rdsp.put_pixels_tab,
808  if(!weighted){
809  rv34_mc(r, block_type, 0, 0, 0, 2, 2, 1, r->rv30, 0,
810  r->rdsp.avg_pixels_tab,
812  }else{
813  rv34_mc(r, block_type, 0, 0, 0, 2, 2, 1, r->rv30, 1,
814  r->rdsp.put_pixels_tab,
816  rv4_weight(r);
817  }
818 }
819 
821 {
822  int i, j;
823  int weighted = !r->rv30 && r->weight1 != 8192;
824 
825  for(j = 0; j < 2; j++)
826  for(i = 0; i < 2; i++){
827  rv34_mc(r, RV34_MB_P_8x8, i*8, j*8, i+j*r->s.b8_stride, 1, 1, 0, r->rv30,
828  weighted,
829  r->rdsp.put_pixels_tab,
831  rv34_mc(r, RV34_MB_P_8x8, i*8, j*8, i+j*r->s.b8_stride, 1, 1, 1, r->rv30,
832  weighted,
833  weighted ? r->rdsp.put_pixels_tab : r->rdsp.avg_pixels_tab,
835  }
836  if(weighted)
837  rv4_weight(r);
838 }
839 
841 static const int num_mvs[RV34_MB_TYPES] = { 0, 0, 1, 4, 1, 1, 0, 0, 2, 2, 2, 1 };
842 
847 static int rv34_decode_mv(RV34DecContext *r, int block_type)
848 {
849  MpegEncContext *s = &r->s;
850  GetBitContext *gb = &s->gb;
851  int i, j, k, l;
852  int mv_pos = s->mb_x * 2 + s->mb_y * 2 * s->b8_stride;
853  int next_bt;
854 
855  memset(r->dmv, 0, sizeof(r->dmv));
856  for(i = 0; i < num_mvs[block_type]; i++){
857  r->dmv[i][0] = svq3_get_se_golomb(gb);
858  r->dmv[i][1] = svq3_get_se_golomb(gb);
859  }
860  switch(block_type){
861  case RV34_MB_TYPE_INTRA:
863  ZERO8x2(s->current_picture_ptr->motion_val[0][s->mb_x * 2 + s->mb_y * 2 * s->b8_stride], s->b8_stride);
864  return 0;
865  case RV34_MB_SKIP:
866  if(s->pict_type == AV_PICTURE_TYPE_P){
867  ZERO8x2(s->current_picture_ptr->motion_val[0][s->mb_x * 2 + s->mb_y * 2 * s->b8_stride], s->b8_stride);
868  rv34_mc_1mv (r, block_type, 0, 0, 0, 2, 2, 0);
869  break;
870  }
871  case RV34_MB_B_DIRECT:
872  //surprisingly, it uses motion scheme from next reference frame
873  /* wait for the current mb row to be finished */
876 
877  next_bt = s->next_picture_ptr->mb_type[s->mb_x + s->mb_y * s->mb_stride];
878  if(IS_INTRA(next_bt) || IS_SKIP(next_bt)){
879  ZERO8x2(s->current_picture_ptr->motion_val[0][s->mb_x * 2 + s->mb_y * 2 * s->b8_stride], s->b8_stride);
880  ZERO8x2(s->current_picture_ptr->motion_val[1][s->mb_x * 2 + s->mb_y * 2 * s->b8_stride], s->b8_stride);
881  }else
882  for(j = 0; j < 2; j++)
883  for(i = 0; i < 2; i++)
884  for(k = 0; k < 2; k++)
885  for(l = 0; l < 2; l++)
886  s->current_picture_ptr->motion_val[l][mv_pos + i + j*s->b8_stride][k] = calc_add_mv(r, l, s->next_picture_ptr->motion_val[0][mv_pos + i + j*s->b8_stride][k]);
887  if(!(IS_16X8(next_bt) || IS_8X16(next_bt) || IS_8X8(next_bt))) //we can use whole macroblock MC
888  rv34_mc_2mv(r, block_type);
889  else
890  rv34_mc_2mv_skip(r);
891  ZERO8x2(s->current_picture_ptr->motion_val[0][s->mb_x * 2 + s->mb_y * 2 * s->b8_stride], s->b8_stride);
892  break;
893  case RV34_MB_P_16x16:
894  case RV34_MB_P_MIX16x16:
895  rv34_pred_mv(r, block_type, 0, 0);
896  rv34_mc_1mv (r, block_type, 0, 0, 0, 2, 2, 0);
897  break;
898  case RV34_MB_B_FORWARD:
899  case RV34_MB_B_BACKWARD:
900  r->dmv[1][0] = r->dmv[0][0];
901  r->dmv[1][1] = r->dmv[0][1];
902  if(r->rv30)
903  rv34_pred_mv_rv3(r, block_type, block_type == RV34_MB_B_BACKWARD);
904  else
905  rv34_pred_mv_b (r, block_type, block_type == RV34_MB_B_BACKWARD);
906  rv34_mc_1mv (r, block_type, 0, 0, 0, 2, 2, block_type == RV34_MB_B_BACKWARD);
907  break;
908  case RV34_MB_P_16x8:
909  case RV34_MB_P_8x16:
910  rv34_pred_mv(r, block_type, 0, 0);
911  rv34_pred_mv(r, block_type, 1 + (block_type == RV34_MB_P_16x8), 1);
912  if(block_type == RV34_MB_P_16x8){
913  rv34_mc_1mv(r, block_type, 0, 0, 0, 2, 1, 0);
914  rv34_mc_1mv(r, block_type, 0, 8, s->b8_stride, 2, 1, 0);
915  }
916  if(block_type == RV34_MB_P_8x16){
917  rv34_mc_1mv(r, block_type, 0, 0, 0, 1, 2, 0);
918  rv34_mc_1mv(r, block_type, 8, 0, 1, 1, 2, 0);
919  }
920  break;
921  case RV34_MB_B_BIDIR:
922  rv34_pred_mv_b (r, block_type, 0);
923  rv34_pred_mv_b (r, block_type, 1);
924  rv34_mc_2mv (r, block_type);
925  break;
926  case RV34_MB_P_8x8:
927  for(i=0;i< 4;i++){
928  rv34_pred_mv(r, block_type, i, i);
929  rv34_mc_1mv (r, block_type, (i&1)<<3, (i&2)<<2, (i&1)+(i>>1)*s->b8_stride, 1, 1, 0);
930  }
931  break;
932  }
933 
934  return 0;
935 } // mv group
937 
943 static const int ittrans[9] = {
946 };
947 
949 static const int ittrans16[4] = {
951 };
952 
956 static void rv34_pred_4x4_block(RV34DecContext *r, uint8_t *dst, int stride, int itype, int up, int left, int down, int right)
957 {
958  uint8_t *prev = dst - stride + 4;
959  uint32_t topleft;
960 
961  if(!up && !left)
962  itype = DC_128_PRED;
963  else if(!up){
964  if(itype == VERT_PRED) itype = HOR_PRED;
965  if(itype == DC_PRED) itype = LEFT_DC_PRED;
966  }else if(!left){
967  if(itype == HOR_PRED) itype = VERT_PRED;
968  if(itype == DC_PRED) itype = TOP_DC_PRED;
970  }
971  if(!down){
973  if(itype == HOR_UP_PRED) itype = HOR_UP_PRED_RV40_NODOWN;
974  if(itype == VERT_LEFT_PRED) itype = VERT_LEFT_PRED_RV40_NODOWN;
975  }
976  if(!right && up){
977  topleft = dst[-stride + 3] * 0x01010101u;
978  prev = (uint8_t*)&topleft;
979  }
980  r->h.pred4x4[itype](dst, prev, stride);
981 }
982 
983 static inline int adjust_pred16(int itype, int up, int left)
984 {
985  if(!up && !left)
986  itype = DC_128_PRED8x8;
987  else if(!up){
988  if(itype == PLANE_PRED8x8)itype = HOR_PRED8x8;
989  if(itype == VERT_PRED8x8) itype = HOR_PRED8x8;
990  if(itype == DC_PRED8x8) itype = LEFT_DC_PRED8x8;
991  }else if(!left){
992  if(itype == PLANE_PRED8x8)itype = VERT_PRED8x8;
993  if(itype == HOR_PRED8x8) itype = VERT_PRED8x8;
994  if(itype == DC_PRED8x8) itype = TOP_DC_PRED8x8;
995  }
996  return itype;
997 }
998 
999 static inline void rv34_process_block(RV34DecContext *r,
1000  uint8_t *pdst, int stride,
1001  int fc, int sc, int q_dc, int q_ac)
1002 {
1003  MpegEncContext *s = &r->s;
1004  int16_t *ptr = s->block[0];
1005  int has_ac = rv34_decode_block(ptr, &s->gb, r->cur_vlcs,
1006  fc, sc, q_dc, q_ac, q_ac);
1007  if(has_ac){
1008  r->rdsp.rv34_idct_add(pdst, stride, ptr);
1009  }else{
1010  r->rdsp.rv34_idct_dc_add(pdst, stride, ptr[0]);
1011  ptr[0] = 0;
1012  }
1013 }
1014 
1015 static void rv34_output_i16x16(RV34DecContext *r, int8_t *intra_types, int cbp)
1016 {
1017  LOCAL_ALIGNED_16(int16_t, block16, [16]);
1018  MpegEncContext *s = &r->s;
1019  GetBitContext *gb = &s->gb;
1020  int q_dc = rv34_qscale_tab[ r->luma_dc_quant_i[s->qscale] ],
1021  q_ac = rv34_qscale_tab[s->qscale];
1022  uint8_t *dst = s->dest[0];
1023  int16_t *ptr = s->block[0];
1024  int i, j, itype, has_ac;
1025 
1026  memset(block16, 0, 16 * sizeof(*block16));
1027 
1028  has_ac = rv34_decode_block(block16, gb, r->cur_vlcs, 3, 0, q_dc, q_dc, q_ac);
1029  if(has_ac)
1030  r->rdsp.rv34_inv_transform(block16);
1031  else
1032  r->rdsp.rv34_inv_transform_dc(block16);
1033 
1034  itype = ittrans16[intra_types[0]];
1035  itype = adjust_pred16(itype, r->avail_cache[6-4], r->avail_cache[6-1]);
1036  r->h.pred16x16[itype](dst, s->linesize);
1037 
1038  for(j = 0; j < 4; j++){
1039  for(i = 0; i < 4; i++, cbp >>= 1){
1040  int dc = block16[i + j*4];
1041 
1042  if(cbp & 1){
1043  has_ac = rv34_decode_block(ptr, gb, r->cur_vlcs, r->luma_vlc, 0, q_ac, q_ac, q_ac);
1044  }else
1045  has_ac = 0;
1046 
1047  if(has_ac){
1048  ptr[0] = dc;
1049  r->rdsp.rv34_idct_add(dst+4*i, s->linesize, ptr);
1050  }else
1051  r->rdsp.rv34_idct_dc_add(dst+4*i, s->linesize, dc);
1052  }
1053 
1054  dst += 4*s->linesize;
1055  }
1056 
1057  itype = ittrans16[intra_types[0]];
1058  if(itype == PLANE_PRED8x8) itype = DC_PRED8x8;
1059  itype = adjust_pred16(itype, r->avail_cache[6-4], r->avail_cache[6-1]);
1060 
1061  q_dc = rv34_qscale_tab[rv34_chroma_quant[1][s->qscale]];
1062  q_ac = rv34_qscale_tab[rv34_chroma_quant[0][s->qscale]];
1063 
1064  for(j = 1; j < 3; j++){
1065  dst = s->dest[j];
1066  r->h.pred8x8[itype](dst, s->uvlinesize);
1067  for(i = 0; i < 4; i++, cbp >>= 1){
1068  uint8_t *pdst;
1069  if(!(cbp & 1)) continue;
1070  pdst = dst + (i&1)*4 + (i&2)*2*s->uvlinesize;
1071 
1072  rv34_process_block(r, pdst, s->uvlinesize,
1073  r->chroma_vlc, 1, q_dc, q_ac);
1074  }
1075  }
1076 }
1077 
1078 static void rv34_output_intra(RV34DecContext *r, int8_t *intra_types, int cbp)
1079 {
1080  MpegEncContext *s = &r->s;
1081  uint8_t *dst = s->dest[0];
1082  int avail[6*8] = {0};
1083  int i, j, k;
1084  int idx, q_ac, q_dc;
1085 
1086  // Set neighbour information.
1087  if(r->avail_cache[1])
1088  avail[0] = 1;
1089  if(r->avail_cache[2])
1090  avail[1] = avail[2] = 1;
1091  if(r->avail_cache[3])
1092  avail[3] = avail[4] = 1;
1093  if(r->avail_cache[4])
1094  avail[5] = 1;
1095  if(r->avail_cache[5])
1096  avail[8] = avail[16] = 1;
1097  if(r->avail_cache[9])
1098  avail[24] = avail[32] = 1;
1099 
1100  q_ac = rv34_qscale_tab[s->qscale];
1101  for(j = 0; j < 4; j++){
1102  idx = 9 + j*8;
1103  for(i = 0; i < 4; i++, cbp >>= 1, dst += 4, idx++){
1104  rv34_pred_4x4_block(r, dst, s->linesize, ittrans[intra_types[i]], avail[idx-8], avail[idx-1], avail[idx+7], avail[idx-7]);
1105  avail[idx] = 1;
1106  if(!(cbp & 1)) continue;
1107 
1108  rv34_process_block(r, dst, s->linesize,
1109  r->luma_vlc, 0, q_ac, q_ac);
1110  }
1111  dst += s->linesize * 4 - 4*4;
1112  intra_types += r->intra_types_stride;
1113  }
1114 
1115  intra_types -= r->intra_types_stride * 4;
1116 
1117  q_dc = rv34_qscale_tab[rv34_chroma_quant[1][s->qscale]];
1118  q_ac = rv34_qscale_tab[rv34_chroma_quant[0][s->qscale]];
1119 
1120  for(k = 0; k < 2; k++){
1121  dst = s->dest[1+k];
1122  fill_rectangle(r->avail_cache + 6, 2, 2, 4, 0, 4);
1123 
1124  for(j = 0; j < 2; j++){
1125  int* acache = r->avail_cache + 6 + j*4;
1126  for(i = 0; i < 2; i++, cbp >>= 1, acache++){
1127  int itype = ittrans[intra_types[i*2+j*2*r->intra_types_stride]];
1128  rv34_pred_4x4_block(r, dst+4*i, s->uvlinesize, itype, acache[-4], acache[-1], !i && !j, acache[-3]);
1129  acache[0] = 1;
1130 
1131  if(!(cbp&1)) continue;
1132 
1133  rv34_process_block(r, dst + 4*i, s->uvlinesize,
1134  r->chroma_vlc, 1, q_dc, q_ac);
1135  }
1136 
1137  dst += 4*s->uvlinesize;
1138  }
1139  }
1140 }
1141 
1142 static int is_mv_diff_gt_3(int16_t (*motion_val)[2], int step)
1143 {
1144  int d;
1145  d = motion_val[0][0] - motion_val[-step][0];
1146  if(d < -3 || d > 3)
1147  return 1;
1148  d = motion_val[0][1] - motion_val[-step][1];
1149  if(d < -3 || d > 3)
1150  return 1;
1151  return 0;
1152 }
1153 
1155 {
1156  MpegEncContext *s = &r->s;
1157  int hmvmask = 0, vmvmask = 0, i, j;
1158  int midx = s->mb_x * 2 + s->mb_y * 2 * s->b8_stride;
1159  int16_t (*motion_val)[2] = &s->current_picture_ptr->motion_val[0][midx];
1160  for(j = 0; j < 16; j += 8){
1161  for(i = 0; i < 2; i++){
1162  if(is_mv_diff_gt_3(motion_val + i, 1))
1163  vmvmask |= 0x11 << (j + i*2);
1164  if((j || s->mb_y) && is_mv_diff_gt_3(motion_val + i, s->b8_stride))
1165  hmvmask |= 0x03 << (j + i*2);
1166  }
1167  motion_val += s->b8_stride;
1168  }
1169  if(s->first_slice_line)
1170  hmvmask &= ~0x000F;
1171  if(!s->mb_x)
1172  vmvmask &= ~0x1111;
1173  if(r->rv30){ //RV30 marks both subblocks on the edge for filtering
1174  vmvmask |= (vmvmask & 0x4444) >> 1;
1175  hmvmask |= (hmvmask & 0x0F00) >> 4;
1176  if(s->mb_x)
1177  r->deblock_coefs[s->mb_x - 1 + s->mb_y*s->mb_stride] |= (vmvmask & 0x1111) << 3;
1178  if(!s->first_slice_line)
1179  r->deblock_coefs[s->mb_x + (s->mb_y - 1)*s->mb_stride] |= (hmvmask & 0xF) << 12;
1180  }
1181  return hmvmask | vmvmask;
1182 }
1183 
1184 static int rv34_decode_inter_macroblock(RV34DecContext *r, int8_t *intra_types)
1185 {
1186  MpegEncContext *s = &r->s;
1187  GetBitContext *gb = &s->gb;
1188  uint8_t *dst = s->dest[0];
1189  int16_t *ptr = s->block[0];
1190  int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
1191  int cbp, cbp2;
1192  int q_dc, q_ac, has_ac;
1193  int i, j;
1194  int dist;
1195 
1196  // Calculate which neighbours are available. Maybe it's worth optimizing too.
1197  memset(r->avail_cache, 0, sizeof(r->avail_cache));
1198  fill_rectangle(r->avail_cache + 6, 2, 2, 4, 1, 4);
1199  dist = (s->mb_x - s->resync_mb_x) + (s->mb_y - s->resync_mb_y) * s->mb_width;
1200  if(s->mb_x && dist)
1201  r->avail_cache[5] =
1202  r->avail_cache[9] = s->current_picture_ptr->mb_type[mb_pos - 1];
1203  if(dist >= s->mb_width)
1204  r->avail_cache[2] =
1205  r->avail_cache[3] = s->current_picture_ptr->mb_type[mb_pos - s->mb_stride];
1206  if(((s->mb_x+1) < s->mb_width) && dist >= s->mb_width - 1)
1207  r->avail_cache[4] = s->current_picture_ptr->mb_type[mb_pos - s->mb_stride + 1];
1208  if(s->mb_x && dist > s->mb_width)
1209  r->avail_cache[1] = s->current_picture_ptr->mb_type[mb_pos - s->mb_stride - 1];
1210 
1211  s->qscale = r->si.quant;
1212  cbp = cbp2 = rv34_decode_inter_mb_header(r, intra_types);
1213  r->cbp_luma [mb_pos] = cbp;
1214  r->cbp_chroma[mb_pos] = cbp >> 16;
1215  r->deblock_coefs[mb_pos] = rv34_set_deblock_coef(r) | r->cbp_luma[mb_pos];
1216  s->current_picture_ptr->qscale_table[mb_pos] = s->qscale;
1217 
1218  if(cbp == -1)
1219  return -1;
1220 
1221  if (IS_INTRA(s->current_picture_ptr->mb_type[mb_pos])){
1222  if(r->is16) rv34_output_i16x16(r, intra_types, cbp);
1223  else rv34_output_intra(r, intra_types, cbp);
1224  return 0;
1225  }
1226 
1227  if(r->is16){
1228  // Only for RV34_MB_P_MIX16x16
1229  LOCAL_ALIGNED_16(int16_t, block16, [16]);
1230  memset(block16, 0, 16 * sizeof(*block16));
1231  q_dc = rv34_qscale_tab[ r->luma_dc_quant_p[s->qscale] ];
1232  q_ac = rv34_qscale_tab[s->qscale];
1233  if (rv34_decode_block(block16, gb, r->cur_vlcs, 3, 0, q_dc, q_dc, q_ac))
1234  r->rdsp.rv34_inv_transform(block16);
1235  else
1236  r->rdsp.rv34_inv_transform_dc(block16);
1237 
1238  q_ac = rv34_qscale_tab[s->qscale];
1239 
1240  for(j = 0; j < 4; j++){
1241  for(i = 0; i < 4; i++, cbp >>= 1){
1242  int dc = block16[i + j*4];
1243 
1244  if(cbp & 1){
1245  has_ac = rv34_decode_block(ptr, gb, r->cur_vlcs, r->luma_vlc, 0, q_ac, q_ac, q_ac);
1246  }else
1247  has_ac = 0;
1248 
1249  if(has_ac){
1250  ptr[0] = dc;
1251  r->rdsp.rv34_idct_add(dst+4*i, s->linesize, ptr);
1252  }else
1253  r->rdsp.rv34_idct_dc_add(dst+4*i, s->linesize, dc);
1254  }
1255 
1256  dst += 4*s->linesize;
1257  }
1258 
1259  r->cur_vlcs = choose_vlc_set(r->si.quant, r->si.vlc_set, 1);
1260  }else{
1261  q_ac = rv34_qscale_tab[s->qscale];
1262 
1263  for(j = 0; j < 4; j++){
1264  for(i = 0; i < 4; i++, cbp >>= 1){
1265  if(!(cbp & 1)) continue;
1266 
1267  rv34_process_block(r, dst + 4*i, s->linesize,
1268  r->luma_vlc, 0, q_ac, q_ac);
1269  }
1270  dst += 4*s->linesize;
1271  }
1272  }
1273 
1274  q_dc = rv34_qscale_tab[rv34_chroma_quant[1][s->qscale]];
1275  q_ac = rv34_qscale_tab[rv34_chroma_quant[0][s->qscale]];
1276 
1277  for(j = 1; j < 3; j++){
1278  dst = s->dest[j];
1279  for(i = 0; i < 4; i++, cbp >>= 1){
1280  uint8_t *pdst;
1281  if(!(cbp & 1)) continue;
1282  pdst = dst + (i&1)*4 + (i&2)*2*s->uvlinesize;
1283 
1284  rv34_process_block(r, pdst, s->uvlinesize,
1285  r->chroma_vlc, 1, q_dc, q_ac);
1286  }
1287  }
1288 
1289  return 0;
1290 }
1291 
1292 static int rv34_decode_intra_macroblock(RV34DecContext *r, int8_t *intra_types)
1293 {
1294  MpegEncContext *s = &r->s;
1295  int cbp, dist;
1296  int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
1297 
1298  // Calculate which neighbours are available. Maybe it's worth optimizing too.
1299  memset(r->avail_cache, 0, sizeof(r->avail_cache));
1300  fill_rectangle(r->avail_cache + 6, 2, 2, 4, 1, 4);
1301  dist = (s->mb_x - s->resync_mb_x) + (s->mb_y - s->resync_mb_y) * s->mb_width;
1302  if(s->mb_x && dist)
1303  r->avail_cache[5] =
1304  r->avail_cache[9] = s->current_picture_ptr->mb_type[mb_pos - 1];
1305  if(dist >= s->mb_width)
1306  r->avail_cache[2] =
1307  r->avail_cache[3] = s->current_picture_ptr->mb_type[mb_pos - s->mb_stride];
1308  if(((s->mb_x+1) < s->mb_width) && dist >= s->mb_width - 1)
1309  r->avail_cache[4] = s->current_picture_ptr->mb_type[mb_pos - s->mb_stride + 1];
1310  if(s->mb_x && dist > s->mb_width)
1311  r->avail_cache[1] = s->current_picture_ptr->mb_type[mb_pos - s->mb_stride - 1];
1312 
1313  s->qscale = r->si.quant;
1314  cbp = rv34_decode_intra_mb_header(r, intra_types);
1315  r->cbp_luma [mb_pos] = cbp;
1316  r->cbp_chroma[mb_pos] = cbp >> 16;
1317  r->deblock_coefs[mb_pos] = 0xFFFF;
1318  s->current_picture_ptr->qscale_table[mb_pos] = s->qscale;
1319 
1320  if(cbp == -1)
1321  return -1;
1322 
1323  if(r->is16){
1324  rv34_output_i16x16(r, intra_types, cbp);
1325  return 0;
1326  }
1327 
1328  rv34_output_intra(r, intra_types, cbp);
1329  return 0;
1330 }
1331 
1333 {
1334  int bits;
1335  if(s->mb_y >= s->mb_height)
1336  return 1;
1337  if(!s->mb_num_left)
1338  return 1;
1339  if(r->s.mb_skip_run > 1)
1340  return 0;
1341  bits = get_bits_left(&s->gb);
1342  if(bits < 0 || (bits < 8 && !show_bits(&s->gb, bits)))
1343  return 1;
1344  return 0;
1345 }
1346 
1347 
1349 {
1351  r->intra_types = NULL;
1353  av_freep(&r->mb_type);
1354  av_freep(&r->cbp_luma);
1355  av_freep(&r->cbp_chroma);
1356  av_freep(&r->deblock_coefs);
1357 }
1358 
1359 
1361 {
1362  r->intra_types_stride = r->s.mb_width * 4 + 4;
1363 
1364  r->cbp_chroma = av_malloc(r->s.mb_stride * r->s.mb_height *
1365  sizeof(*r->cbp_chroma));
1366  r->cbp_luma = av_malloc(r->s.mb_stride * r->s.mb_height *
1367  sizeof(*r->cbp_luma));
1368  r->deblock_coefs = av_malloc(r->s.mb_stride * r->s.mb_height *
1369  sizeof(*r->deblock_coefs));
1371  sizeof(*r->intra_types_hist));
1372  r->mb_type = av_mallocz(r->s.mb_stride * r->s.mb_height *
1373  sizeof(*r->mb_type));
1374 
1375  if (!(r->cbp_chroma && r->cbp_luma && r->deblock_coefs &&
1376  r->intra_types_hist && r->mb_type)) {
1377  rv34_decoder_free(r);
1378  return AVERROR(ENOMEM);
1379  }
1380 
1382 
1383  return 0;
1384 }
1385 
1386 
1388 {
1389  rv34_decoder_free(r);
1390  return rv34_decoder_alloc(r);
1391 }
1392 
1393 
1394 static int rv34_decode_slice(RV34DecContext *r, int end, const uint8_t* buf, int buf_size)
1395 {
1396  MpegEncContext *s = &r->s;
1397  GetBitContext *gb = &s->gb;
1398  int mb_pos, slice_type;
1399  int res;
1400 
1401  init_get_bits(&r->s.gb, buf, buf_size*8);
1402  res = r->parse_slice_header(r, gb, &r->si);
1403  if(res < 0){
1404  av_log(s->avctx, AV_LOG_ERROR, "Incorrect or unknown slice header\n");
1405  return -1;
1406  }
1407 
1408  slice_type = r->si.type ? r->si.type : AV_PICTURE_TYPE_I;
1409  if (slice_type != s->pict_type) {
1410  av_log(s->avctx, AV_LOG_ERROR, "Slice type mismatch\n");
1411  return AVERROR_INVALIDDATA;
1412  }
1413 
1414  r->si.end = end;
1415  s->qscale = r->si.quant;
1416  s->mb_num_left = r->si.end - r->si.start;
1417  r->s.mb_skip_run = 0;
1418 
1419  mb_pos = s->mb_x + s->mb_y * s->mb_width;
1420  if(r->si.start != mb_pos){
1421  av_log(s->avctx, AV_LOG_ERROR, "Slice indicates MB offset %d, got %d\n", r->si.start, mb_pos);
1422  s->mb_x = r->si.start % s->mb_width;
1423  s->mb_y = r->si.start / s->mb_width;
1424  }
1425  memset(r->intra_types_hist, -1, r->intra_types_stride * 4 * 2 * sizeof(*r->intra_types_hist));
1426  s->first_slice_line = 1;
1427  s->resync_mb_x = s->mb_x;
1428  s->resync_mb_y = s->mb_y;
1429 
1431  while(!check_slice_end(r, s)) {
1433 
1434  if(r->si.type)
1435  res = rv34_decode_inter_macroblock(r, r->intra_types + s->mb_x * 4 + 4);
1436  else
1437  res = rv34_decode_intra_macroblock(r, r->intra_types + s->mb_x * 4 + 4);
1438  if(res < 0){
1439  ff_er_add_slice(&s->er, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, ER_MB_ERROR);
1440  return -1;
1441  }
1442  if (++s->mb_x == s->mb_width) {
1443  s->mb_x = 0;
1444  s->mb_y++;
1446 
1447  memmove(r->intra_types_hist, r->intra_types, r->intra_types_stride * 4 * sizeof(*r->intra_types_hist));
1448  memset(r->intra_types, -1, r->intra_types_stride * 4 * sizeof(*r->intra_types_hist));
1449 
1450  if(r->loop_filter && s->mb_y >= 2)
1451  r->loop_filter(r, s->mb_y - 2);
1452 
1455  s->mb_y - 2, 0);
1456 
1457  }
1458  if(s->mb_x == s->resync_mb_x)
1459  s->first_slice_line=0;
1460  s->mb_num_left--;
1461  }
1462  ff_er_add_slice(&s->er, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, ER_MB_END);
1463 
1464  return s->mb_y == s->mb_height;
1465 }
1466  // recons group end
1468 
1473 {
1474  RV34DecContext *r = avctx->priv_data;
1475  MpegEncContext *s = &r->s;
1476  int ret;
1477 
1479  s->avctx = avctx;
1480  s->out_format = FMT_H263;
1481  s->codec_id = avctx->codec_id;
1482 
1483  s->width = avctx->width;
1484  s->height = avctx->height;
1485 
1486  r->s.avctx = avctx;
1487  avctx->pix_fmt = AV_PIX_FMT_YUV420P;
1488  avctx->has_b_frames = 1;
1489  s->low_delay = 0;
1490 
1491  ff_mpv_idct_init(s);
1492  if ((ret = ff_mpv_common_init(s)) < 0)
1493  return ret;
1494 
1495  ff_h264_pred_init(&r->h, AV_CODEC_ID_RV40, 8, 1);
1496 
1497 #if CONFIG_RV30_DECODER
1498  if (avctx->codec_id == AV_CODEC_ID_RV30)
1499  ff_rv30dsp_init(&r->rdsp);
1500 #endif
1501 #if CONFIG_RV40_DECODER
1502  if (avctx->codec_id == AV_CODEC_ID_RV40)
1503  ff_rv40dsp_init(&r->rdsp);
1504 #endif
1505 
1506  if ((ret = rv34_decoder_alloc(r)) < 0) {
1507  ff_mpv_common_end(&r->s);
1508  return ret;
1509  }
1510 
1511  if(!intra_vlcs[0].cbppattern[0].bits)
1512  rv34_init_tables();
1513 
1514  avctx->internal->allocate_progress = 1;
1515 
1516  return 0;
1517 }
1518 
1520 {
1521  int err;
1522  RV34DecContext *r = avctx->priv_data;
1523 
1524  r->s.avctx = avctx;
1525 
1526  if (avctx->internal->is_copy) {
1527  r->tmp_b_block_base = NULL;
1528  ff_mpv_idct_init(&r->s);
1529  if ((err = ff_mpv_common_init(&r->s)) < 0)
1530  return err;
1531  if ((err = rv34_decoder_alloc(r)) < 0) {
1532  ff_mpv_common_end(&r->s);
1533  return err;
1534  }
1535  }
1536 
1537  return 0;
1538 }
1539 
1541 {
1542  RV34DecContext *r = dst->priv_data, *r1 = src->priv_data;
1543  MpegEncContext * const s = &r->s, * const s1 = &r1->s;
1544  int err;
1545 
1546  if (dst == src || !s1->context_initialized)
1547  return 0;
1548 
1549  if (s->height != s1->height || s->width != s1->width) {
1550  s->height = s1->height;
1551  s->width = s1->width;
1552  if ((err = ff_mpv_common_frame_size_change(s)) < 0)
1553  return err;
1554  if ((err = rv34_decoder_realloc(r)) < 0)
1555  return err;
1556  }
1557 
1558  if ((err = ff_mpeg_update_thread_context(dst, src)))
1559  return err;
1560 
1561  r->cur_pts = r1->cur_pts;
1562  r->last_pts = r1->last_pts;
1563  r->next_pts = r1->next_pts;
1564 
1565  memset(&r->si, 0, sizeof(r->si));
1566 
1567  return 0;
1568 }
1569 
1570 static int get_slice_offset(AVCodecContext *avctx, const uint8_t *buf, int n)
1571 {
1572  if(avctx->slice_count) return avctx->slice_offset[n];
1573  else return AV_RL32(buf + n*8 - 4) == 1 ? AV_RL32(buf + n*8) : AV_RB32(buf + n*8);
1574 }
1575 
1576 static int finish_frame(AVCodecContext *avctx, AVFrame *pict)
1577 {
1578  RV34DecContext *r = avctx->priv_data;
1579  MpegEncContext *s = &r->s;
1580  int got_picture = 0, ret;
1581 
1582  ff_er_frame_end(&s->er);
1583  ff_mpv_frame_end(s);
1584  s->mb_num_left = 0;
1585 
1588 
1589  if (s->pict_type == AV_PICTURE_TYPE_B || s->low_delay) {
1590  if ((ret = av_frame_ref(pict, s->current_picture_ptr->f)) < 0)
1591  return ret;
1593  got_picture = 1;
1594  } else if (s->last_picture_ptr) {
1595  if ((ret = av_frame_ref(pict, s->last_picture_ptr->f)) < 0)
1596  return ret;
1598  got_picture = 1;
1599  }
1600 
1601  return got_picture;
1602 }
1603 
1605  void *data, int *got_picture_ptr,
1606  AVPacket *avpkt)
1607 {
1608  const uint8_t *buf = avpkt->data;
1609  int buf_size = avpkt->size;
1610  RV34DecContext *r = avctx->priv_data;
1611  MpegEncContext *s = &r->s;
1612  AVFrame *pict = data;
1613  SliceInfo si;
1614  int i, ret;
1615  int slice_count;
1616  const uint8_t *slices_hdr = NULL;
1617  int last = 0;
1618 
1619  /* no supplementary picture */
1620  if (buf_size == 0) {
1621  /* special case for last picture */
1622  if (s->low_delay==0 && s->next_picture_ptr) {
1623  if ((ret = av_frame_ref(pict, s->next_picture_ptr->f)) < 0)
1624  return ret;
1625  s->next_picture_ptr = NULL;
1626 
1627  *got_picture_ptr = 1;
1628  }
1629  return 0;
1630  }
1631 
1632  if(!avctx->slice_count){
1633  slice_count = (*buf++) + 1;
1634  slices_hdr = buf + 4;
1635  buf += 8 * slice_count;
1636  buf_size -= 1 + 8 * slice_count;
1637  }else
1638  slice_count = avctx->slice_count;
1639 
1640  //parse first slice header to check whether this frame can be decoded
1641  if(get_slice_offset(avctx, slices_hdr, 0) < 0 ||
1642  get_slice_offset(avctx, slices_hdr, 0) > buf_size){
1643  av_log(avctx, AV_LOG_ERROR, "Slice offset is invalid\n");
1644  return AVERROR_INVALIDDATA;
1645  }
1646  init_get_bits(&s->gb, buf+get_slice_offset(avctx, slices_hdr, 0), (buf_size-get_slice_offset(avctx, slices_hdr, 0))*8);
1647  if(r->parse_slice_header(r, &r->s.gb, &si) < 0 || si.start){
1648  av_log(avctx, AV_LOG_ERROR, "First slice header is incorrect\n");
1649  return AVERROR_INVALIDDATA;
1650  }
1651  if ((!s->last_picture_ptr || !s->last_picture_ptr->f->data[0]) &&
1652  si.type == AV_PICTURE_TYPE_B) {
1653  av_log(avctx, AV_LOG_ERROR, "Invalid decoder state: B-frame without "
1654  "reference data.\n");
1655  return AVERROR_INVALIDDATA;
1656  }
1657  if( (avctx->skip_frame >= AVDISCARD_NONREF && si.type==AV_PICTURE_TYPE_B)
1658  || (avctx->skip_frame >= AVDISCARD_NONKEY && si.type!=AV_PICTURE_TYPE_I)
1659  || avctx->skip_frame >= AVDISCARD_ALL)
1660  return avpkt->size;
1661 
1662  /* first slice */
1663  if (si.start == 0) {
1664  if (s->mb_num_left > 0) {
1665  av_log(avctx, AV_LOG_ERROR, "New frame but still %d MB left.",
1666  s->mb_num_left);
1667  ff_er_frame_end(&s->er);
1668  ff_mpv_frame_end(s);
1669  }
1670 
1671  if (s->width != si.width || s->height != si.height) {
1672  int err;
1673 
1674  av_log(s->avctx, AV_LOG_WARNING, "Changing dimensions to %dx%d\n",
1675  si.width, si.height);
1676 
1677  s->width = si.width;
1678  s->height = si.height;
1679 
1680  err = ff_set_dimensions(s->avctx, s->width, s->height);
1681  if (err < 0)
1682  return err;
1683 
1684  if ((err = ff_mpv_common_frame_size_change(s)) < 0)
1685  return err;
1686  if ((err = rv34_decoder_realloc(r)) < 0)
1687  return err;
1688  }
1689  s->pict_type = si.type ? si.type : AV_PICTURE_TYPE_I;
1690  if (ff_mpv_frame_start(s, s->avctx) < 0)
1691  return -1;
1693  if (!r->tmp_b_block_base) {
1694  int i;
1695 
1696  r->tmp_b_block_base = av_malloc(s->linesize * 48);
1697  for (i = 0; i < 2; i++)
1698  r->tmp_b_block_y[i] = r->tmp_b_block_base
1699  + i * 16 * s->linesize;
1700  for (i = 0; i < 4; i++)
1701  r->tmp_b_block_uv[i] = r->tmp_b_block_base + 32 * s->linesize
1702  + (i >> 1) * 8 * s->uvlinesize
1703  + (i & 1) * 16;
1704  }
1705  r->cur_pts = si.pts;
1706  if (s->pict_type != AV_PICTURE_TYPE_B) {
1707  r->last_pts = r->next_pts;
1708  r->next_pts = r->cur_pts;
1709  } else {
1710  int refdist = GET_PTS_DIFF(r->next_pts, r->last_pts);
1711  int dist0 = GET_PTS_DIFF(r->cur_pts, r->last_pts);
1712  int dist1 = GET_PTS_DIFF(r->next_pts, r->cur_pts);
1713 
1714  if(!refdist){
1715  r->mv_weight1 = r->mv_weight2 = r->weight1 = r->weight2 = 8192;
1716  r->scaled_weight = 0;
1717  }else{
1718  r->mv_weight1 = (dist0 << 14) / refdist;
1719  r->mv_weight2 = (dist1 << 14) / refdist;
1720  if((r->mv_weight1|r->mv_weight2) & 511){
1721  r->weight1 = r->mv_weight1;
1722  r->weight2 = r->mv_weight2;
1723  r->scaled_weight = 0;
1724  }else{
1725  r->weight1 = r->mv_weight1 >> 9;
1726  r->weight2 = r->mv_weight2 >> 9;
1727  r->scaled_weight = 1;
1728  }
1729  }
1730  }
1731  s->mb_x = s->mb_y = 0;
1733  } else if (HAVE_THREADS &&
1735  av_log(s->avctx, AV_LOG_ERROR, "Decoder needs full frames in frame "
1736  "multithreading mode (start MB is %d).\n", si.start);
1737  return AVERROR_INVALIDDATA;
1738  }
1739 
1740  for(i = 0; i < slice_count; i++){
1741  int offset = get_slice_offset(avctx, slices_hdr, i);
1742  int size;
1743  if(i+1 == slice_count)
1744  size = buf_size - offset;
1745  else
1746  size = get_slice_offset(avctx, slices_hdr, i+1) - offset;
1747 
1748  if(offset < 0 || offset > buf_size){
1749  av_log(avctx, AV_LOG_ERROR, "Slice offset is invalid\n");
1750  break;
1751  }
1752 
1753  r->si.end = s->mb_width * s->mb_height;
1754  s->mb_num_left = r->s.mb_x + r->s.mb_y*r->s.mb_width - r->si.start;
1755 
1756  if(i+1 < slice_count){
1757  if (get_slice_offset(avctx, slices_hdr, i+1) < 0 ||
1758  get_slice_offset(avctx, slices_hdr, i+1) > buf_size) {
1759  av_log(avctx, AV_LOG_ERROR, "Slice offset is invalid\n");
1760  break;
1761  }
1762  init_get_bits(&s->gb, buf+get_slice_offset(avctx, slices_hdr, i+1), (buf_size-get_slice_offset(avctx, slices_hdr, i+1))*8);
1763  if(r->parse_slice_header(r, &r->s.gb, &si) < 0){
1764  if(i+2 < slice_count)
1765  size = get_slice_offset(avctx, slices_hdr, i+2) - offset;
1766  else
1767  size = buf_size - offset;
1768  }else
1769  r->si.end = si.start;
1770  }
1771  if (size < 0 || size > buf_size - offset) {
1772  av_log(avctx, AV_LOG_ERROR, "Slice size is invalid\n");
1773  break;
1774  }
1775  last = rv34_decode_slice(r, r->si.end, buf + offset, size);
1776  if(last)
1777  break;
1778  }
1779 
1780  if (s->current_picture_ptr) {
1781  if (last) {
1782  if(r->loop_filter)
1783  r->loop_filter(r, s->mb_height - 1);
1784 
1785  ret = finish_frame(avctx, pict);
1786  if (ret < 0)
1787  return ret;
1788  *got_picture_ptr = ret;
1789  } else if (HAVE_THREADS &&
1791  av_log(avctx, AV_LOG_INFO, "marking unfished frame as finished\n");
1792  /* always mark the current frame as finished, frame-mt supports
1793  * only complete frames */
1794  ff_er_frame_end(&s->er);
1795  ff_mpv_frame_end(s);
1796  s->mb_num_left = 0;
1798  return AVERROR_INVALIDDATA;
1799  }
1800  }
1801 
1802  return avpkt->size;
1803 }
1804 
1806 {
1807  RV34DecContext *r = avctx->priv_data;
1808 
1809  ff_mpv_common_end(&r->s);
1810  rv34_decoder_free(r);
1811 
1812  return 0;
1813 }
#define FFMAX(a, b)
Definition: common.h:55
qpel_mc_func put_pixels_tab[4][16]
Definition: rv34dsp.h:58
P-frame macroblock with DCs in a separate 4x4 block, one motion vector.
Definition: rv34.h:54
void ff_rv40dsp_init(RV34DSPContext *c)
Definition: rv40dsp.c:613
#define MB_TYPE_INTRA16x16
Definition: avcodec.h:776
#define VERT_PRED8x8
Definition: h264pred.h:70
#define MB_TYPE_SKIP
Definition: avcodec.h:786
int vlc_set
VLCs used for this slice.
Definition: rv34.h:76
VLC second_pattern[2]
VLCs used for decoding coefficients in the subblocks 2 and 3.
Definition: rv34.h:67
discard all frames except keyframes
Definition: avcodec.h:567
void ff_init_block_index(MpegEncContext *s)
Definition: mpegvideo.c:2368
Definition: vp9.h:55
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:54
static const uint8_t rv34_table_inter_secondpat[NUM_INTER_TABLES][2][OTHERBLK_VLC_SIZE]
Definition: rv34vlc.h:3737
#define DC_128_PRED8x8
Definition: h264pred.h:76
int last_pts
Definition: rv34.h:107
int size
P-frame macroblock, 16x8 motion compensation partitions.
Definition: rv34.h:51
This structure describes decoded (raw) audio or video data.
Definition: frame.h:135
static void rv34_output_i16x16(RV34DecContext *r, int8_t *intra_types, int cbp)
Definition: rv34.c:1015
uint8_t * tmp_b_block_y[2]
temporary blocks for RV4 weighted MC
Definition: rv34.h:120
uint32_t avail_cache[3 *4]
8x8 block available flags (for MV prediction)
Definition: rv34.h:117
static unsigned int get_bits(GetBitContext *s, int n)
Read 1-25 bits.
Definition: get_bits.h:240
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:129
#define ER_MB_END
static const int ittrans[9]
mapping of RV30/40 intra prediction types to standard H.264 types
Definition: rv34.c:943
B-frame macroblock, forward prediction.
Definition: rv34.h:47
int dmv[4][2]
differential motion vectors for the current macroblock
Definition: rv34.h:102
int ff_set_dimensions(AVCodecContext *s, int width, int height)
Check that the provided frame dimensions are valid and set them on the codec context.
Definition: utils.c:133
Bidirectionally predicted B-frame macroblock, two motion vectors.
Definition: rv34.h:53
MpegEncContext s
Definition: rv34.h:85
static int rv34_decode_block(int16_t *dst, GetBitContext *gb, RV34VLC *rvlc, int fc, int sc, int q_dc, int q_ac1, int q_ac2)
Decode coefficients for 4x4 block.
Definition: rv34.c:286
static int rv34_decode_intra_mb_header(RV34DecContext *r, int8_t *intra_types)
Decode intra macroblock header and return CBP in case of success, -1 otherwise.
Definition: rv34.c:352
int v_edge_pos
horizontal / vertical position of the right/bottom edge (pixel replication)
Definition: mpegvideo.h:258
void ff_er_frame_end(ERContext *s)
static const uint8_t rv34_chroma_quant[2][32]
quantizer values used for AC and DC coefficients in chroma blocks
Definition: rv34data.h:74
int height
coded height
Definition: rv34.h:79
int size
Definition: avcodec.h:974
enum AVCodecID codec_id
Definition: mpegvideo.h:235
Bidirectionally predicted B-frame macroblock, no motion vectors.
Definition: rv34.h:50
#define MB_TYPE_INTRA
Definition: mpegutils.h:69
void ff_print_debug_info(MpegEncContext *s, Picture *p)
Print debugging info for the given picture.
Definition: mpegvideo.c:1910
void av_log(void *avcl, int level, const char *fmt,...) av_printf_format(3
Send the specified message to the log if the level is less than or equal to the current av_log_level...
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:1254
static int rv34_decode_mv(RV34DecContext *r, int block_type)
Decode motion vector differences and perform motion vector reconstruction and motion compensation...
Definition: rv34.c:847
Definition: vf_drawbox.c:37
#define VLC_TYPE
Definition: get_bits.h:62
mpegvideo header.
static void rv34_pred_b_vector(int A[2], int B[2], int C[2], int A_avail, int B_avail, int C_avail, int *mx, int *my)
Predict motion vector for B-frame macroblock.
Definition: rv34.c:528
VLC cbppattern[2]
VLCs used for pattern of coded block patterns decoding.
Definition: rv34.h:64
static int finish_frame(AVCodecContext *avctx, AVFrame *pict)
Definition: rv34.c:1576
int weight2
B frame distance fractions (0.14) used in motion compensation.
Definition: rv34.h:109
#define GET_PTS_DIFF(a, b)
Definition: rv34.c:513
RV30 and RV40 decoder common data declarations.
discard all
Definition: avcodec.h:568
static int rv34_decode_slice(RV34DecContext *r, int end, const uint8_t *buf, int buf_size)
Definition: rv34.c:1394
void ff_thread_await_progress(ThreadFrame *f, int n, int field)
Wait for earlier decoding threads to finish reference pictures.
static void rv34_pred_4x4_block(RV34DecContext *r, uint8_t *dst, int stride, int itype, int up, int left, int down, int right)
Perform 4x4 intra prediction.
Definition: rv34.c:956
int * slice_offset
slice offsets in the frame in bytes
Definition: avcodec.h:1420
int start
Definition: rv34.h:77
#define HOR_PRED8x8
Definition: h264pred.h:69
static const int rv34_mb_type_to_lavc[12]
translation of RV30/40 macroblock types to lavc ones
Definition: rv34.c:52
int stride
Definition: mace.c:144
#define NUM_INTRA_TABLES
Definition: rv34vlc.h:32
int qscale
QP.
Definition: mpegvideo.h:332
#define DIAG_DOWN_LEFT_PRED_RV40_NODOWN
Definition: h264pred.h:54
const uint8_t * luma_dc_quant_p
luma subblock DC quantizer for interframes
Definition: rv34.h:91
static void decode_subblock3(int16_t *dst, int code, GetBitContext *gb, VLC *vlc, int q_dc, int q_ac1, int q_ac2)
Definition: rv34.c:264
void av_freep(void *ptr)
Free a memory block which has been allocated with av_malloc(z)() or av_realloc() and set the pointer ...
Definition: mem.c:198
enum AVDiscard skip_frame
Definition: avcodec.h:2727
#define PLANE_PRED8x8
Definition: h264pred.h:71
#define CBPPAT_VLC_SIZE
Definition: rv34vlc.h:35
uint8_t * tmp_b_block_base
Definition: rv34.h:122
int mb_num_left
number of MBs left in this video packet (for partitioned Slices only)
Definition: mpegvideo.h:475
static void rv34_gen_vlc(const uint8_t *bits, int size, VLC *vlc, const uint8_t *insyms, const int num)
Generate VLC from codeword lengths.
Definition: rv34.c:108
int ff_init_vlc_sparse(VLC *vlc, int nb_bits, int nb_codes, const void *bits, int bits_wrap, int bits_size, const void *codes, int codes_wrap, int codes_size, const void *symbols, int symbols_wrap, int symbols_size, int flags)
Definition: bitstream.c:266
uint8_t bits
Definition: crc.c:251
uint8_t
static void rv34_process_block(RV34DecContext *r, uint8_t *pdst, int stride, int fc, int sc, int q_dc, int q_ac)
Definition: rv34.c:999
static const uint8_t rv34_table_intra_firstpat[NUM_INTRA_TABLES][4][FIRSTBLK_VLC_SIZE]
Definition: rv34vlc.h:940
#define DC_PRED8x8
Definition: h264pred.h:68
int scaled_weight
Definition: rv34.h:108
uint16_t * cbp_luma
CBP values for luma subblocks.
Definition: rv34.h:112
static const uint16_t rv34_mb_max_sizes[6]
maximum number of macroblocks for each of the possible slice offset sizes
Definition: rv34data.h:119
enum OutputFormat out_format
output format
Definition: mpegvideo.h:227
static const int chroma_coeffs[3]
Definition: rv34.c:646
static void rv34_mc_2mv_skip(RV34DecContext *r)
Definition: rv34.c:820
int ff_mpv_common_frame_size_change(MpegEncContext *s)
Definition: mpegvideo.c:1405
Multithreading support functions.
Definition: vp9.h:54
int width
coded width
Definition: rv34.h:78
#define TOP_DC_PRED8x8
Definition: h264pred.h:75
#define ER_MB_ERROR
#define HOR_UP_PRED_RV40_NODOWN
Definition: h264pred.h:55
int av_frame_ref(AVFrame *dst, const AVFrame *src)
Set up a new reference to the data described by the source frame.
Definition: frame.c:188
#define MB_TYPE_SEPARATE_DC
Definition: rv34.h:36
rv40_weight_func rv40_weight_pixels_tab[2][2]
Biweight functions, first dimension is transform size (16/8), second is whether the weight is prescal...
Definition: rv34dsp.h:67
uint16_t * deblock_coefs
deblock coefficients for each macroblock
Definition: rv34.h:114
void(* pred8x8[4+3+4])(uint8_t *src, ptrdiff_t stride)
Definition: h264pred.h:97
quarterpel DSP functions
static const uint8_t part_sizes_h[RV34_MB_TYPES]
macroblock partition height in 8x8 blocks
Definition: rv34.c:452
const char data[16]
Definition: mxf.c:70
static RV34VLC inter_vlcs[NUM_INTER_TABLES]
Definition: rv34.c:68
static int flags
Definition: log.c:44
struct AVCodecInternal * internal
Private context used for internal data.
Definition: avcodec.h:1100
static const uint8_t bits2[81]
Definition: aactab.c:122
static int is_mv_diff_gt_3(int16_t(*motion_val)[2], int step)
Definition: rv34.c:1142
Skipped block.
Definition: rv34.h:49
static VLC_TYPE table_data[117592][2]
Definition: rv34.c:98
av_cold void ff_mpv_idct_init(MpegEncContext *s)
Definition: mpegvideo.c:408
int mb_height
number of MBs horizontally & vertically
Definition: mpegvideo.h:255
static const uint16_t rv34_qscale_tab[32]
This table is used for dequantizing.
Definition: rv34data.h:84
#define B
Definition: huffyuv.h:49
void ff_thread_finish_setup(AVCodecContext *avctx)
If the codec defines update_thread_context(), call this when they are ready for the next thread to st...
static void rv34_output_intra(RV34DecContext *r, int8_t *intra_types, int cbp)
Definition: rv34.c:1078
void(* pred4x4[9+3+3])(uint8_t *src, const uint8_t *topright, ptrdiff_t stride)
Definition: h264pred.h:93
rv34_idct_add_func rv34_idct_add
Definition: rv34dsp.h:70
P-frame macroblock, 8x16 motion compensation partitions.
Definition: rv34.h:52
static void ff_update_block_index(MpegEncContext *s)
Definition: mpegvideo.h:756
#define r
Definition: input.c:51
static const uint8_t rv34_quant_to_vlc_set[2][31]
tables used to translate a quantizer value into a VLC set for decoding The first table is used for in...
Definition: rv34data.h:95
static void decode_subblock1(int16_t *dst, int code, GetBitContext *gb, VLC *vlc, int q)
Decode a single coefficient.
Definition: rv34.c:258
int slice_count
slice count
Definition: avcodec.h:1404
ThreadFrame tf
Definition: mpegvideo.h:101
int quant
quantizer used for this slice
Definition: rv34.h:75
static int get_bits_left(GetBitContext *gb)
Definition: get_bits.h:555
static const int table_offs[]
Definition: rv34.c:77
qpel_mc_func avg_pixels_tab[4][16]
Definition: rv34dsp.h:59
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:123
int has_b_frames
Size of the frame reordering buffer in the decoder.
Definition: avcodec.h:1339
static void rv4_weight(RV34DecContext *r)
Definition: rv34.c:779
#define chroma_mc(a)
Definition: vc1dsp.c:699
static const int ittrans16[4]
mapping of RV30/40 intra 16x16 prediction types to standard H.264 types
Definition: rv34.c:949
void ff_er_add_slice(ERContext *s, int startx, int starty, int endx, int endy, int status)
Add a slice.
static const uint16_t mask[17]
Definition: lzw.c:38
void(* qpel_mc_func)(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)
Definition: qpeldsp.h:65
int is_copy
Whether the parent AVCodecContext is a copy of the context which had init() called on it...
Definition: internal.h:64
rv34_idct_dc_add_func rv34_idct_dc_add
Definition: rv34dsp.h:71
#define AVERROR(e)
Definition: error.h:43
av_cold void ff_rv30dsp_init(RV34DSPContext *c)
Definition: rv30dsp.c:265
ERContext er
Definition: mpegvideo.h:638
int active_thread_type
Which multithreading methods are in use by the codec.
Definition: avcodec.h:2559
static void rv34_mc_2mv(RV34DecContext *r, const int block_type)
Definition: rv34.c:801
static void rv34_pred_mv(RV34DecContext *r, int block_type, int subblock_no, int dmv_no)
motion vector prediction
Definition: rv34.c:464
int luma_vlc
which VLC set will be used for decoding of luma blocks
Definition: rv34.h:99
uint8_t * edge_emu_buffer
temporary buffer for if MVs point to out-of-frame data
Definition: mpegvideo.h:327
#define COEFF_VLC_SIZE
Definition: rv34vlc.h:39
#define IS_SKIP(a)
Definition: mpegutils.h:77
static int rv34_decoder_realloc(RV34DecContext *r)
Definition: rv34.c:1387
int low_delay
no reordering needed / has no b-frames
Definition: mpegvideo.h:519
GetBitContext gb
Definition: mpegvideo.h:558
void ff_mpv_common_end(MpegEncContext *s)
Definition: mpegvideo.c:1478
#define CBP_VLC_SIZE
Definition: rv34vlc.h:36
Libavcodec external API header.
rv34_inv_transform_func rv34_inv_transform_dc
Definition: rv34dsp.h:69
VLC tables used by the decoder.
Definition: rv34.h:63
Definition: vf_drawbox.c:37
Definition: get_bits.h:64
int end
start and end macroblocks of the slice
Definition: rv34.h:77
int resync_mb_x
x position of last resync marker
Definition: mpegvideo.h:472
static int svq3_get_se_golomb(GetBitContext *gb)
Definition: golomb.h:221
static int rv34_set_deblock_coef(RV34DecContext *r)
Definition: rv34.c:1154
common internal API header
useful rectangle filling function
static void ZERO8x2(void *dst, int stride)
Definition: rv34.c:45
#define V
Definition: options_table.h:35
int(* parse_slice_header)(struct RV34DecContext *r, GetBitContext *gb, SliceInfo *si)
Definition: rv34.h:124
Intra macroblock with DCs in a separate 4x4 block.
Definition: rv34.h:44
#define IS_16X8(a)
Definition: mpegutils.h:83
static void rv34_pred_mv_b(RV34DecContext *r, int block_type, int dir)
motion vector prediction for B-frames
Definition: rv34.c:548
#define MB_TYPE_DIRECT2
Definition: avcodec.h:783
int * mb_type
internal macroblock types
Definition: rv34.h:97
static int adjust_pred16(int itype, int up, int left)
Definition: rv34.c:983
int width
picture width / height.
Definition: avcodec.h:1224
int16_t(*[2] motion_val)[2]
Definition: mpegvideo.h:107
Picture * current_picture_ptr
pointer to the current picture
Definition: mpegvideo.h:310
void ff_mpeg_er_frame_start(MpegEncContext *s)
Definition: mpeg_er.c:45
Picture.
Definition: mpegvideo.h:99
static int calc_add_mv(RV34DecContext *r, int dir, int val)
Calculate motion vector component that should be added for direct blocks.
Definition: rv34.c:518
void * av_malloc(size_t size) av_malloc_attrib 1(1)
Allocate a block of size bytes with alignment suitable for all memory accesses (including vectors if ...
Definition: mem.c:62
H264PredContext h
functions for 4x4 and 16x16 intra block prediction
Definition: rv34.h:94
static RV34VLC * choose_vlc_set(int quant, int mod, int type)
Select VLC set for decoding from current quantizer, modifier and frame type.
Definition: rv34.c:341
VLC coefficient
VLCs used for decoding big coefficients.
Definition: rv34.h:69
void ff_thread_report_progress(ThreadFrame *f, int n, int field)
Notify later decoding threads when part of their reference picture is ready.
void(* emulated_edge_mc)(uint8_t *buf, const uint8_t *src, ptrdiff_t buf_linesize, ptrdiff_t src_linesize, int block_w, int block_h, int src_x, int src_y, int w, int h)
Copy a rectangular area of samples to a temporary buffer and replicate the border samples...
Definition: videodsp.h:52
static int rv34_decoder_alloc(RV34DecContext *r)
Definition: rv34.c:1360
VLC first_pattern[4]
VLCs used for decoding coefficients in the first subblock.
Definition: rv34.h:66
static unsigned int show_bits(GetBitContext *s, int n)
Show 1-25 bits.
Definition: get_bits.h:254
static void fill_rectangle(SDL_Surface *screen, int x, int y, int w, int h, int color)
Definition: avplay.c:396
#define FIRSTBLK_VLC_SIZE
Definition: rv34vlc.h:37
int mv_weight1
Definition: rv34.h:110
#define MB_TYPE_L0L1
Definition: avcodec.h:793
void(* h264_chroma_mc_func)(uint8_t *dst, uint8_t *src, int srcStride, int h, int x, int y)
Definition: h264chroma.h:24
static av_always_inline int get_vlc2(GetBitContext *s, VLC_TYPE(*table)[2], int bits, int max_depth)
Parse a vlc code.
Definition: get_bits.h:522
static const uint8_t rv34_table_intra_secondpat[NUM_INTRA_TABLES][2][OTHERBLK_VLC_SIZE]
Definition: rv34vlc.h:2074
#define MB_TYPE_L1
Definition: avcodec.h:792
static const uint8_t rv34_table_intra_thirdpat[NUM_INTRA_TABLES][2][OTHERBLK_VLC_SIZE]
Definition: rv34vlc.h:2177
static const uint8_t rv34_inter_coeff[NUM_INTER_TABLES][COEFF_VLC_SIZE]
Definition: rv34vlc.h:4024
#define HAVE_THREADS
Definition: config.h:283
#define INIT_VLC_USE_NEW_STATIC
Definition: get_bits.h:441
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:65
int ff_mpeg_update_thread_context(AVCodecContext *dst, const AVCodecContext *src)
Definition: mpegvideo.c:899
#define LEFT_DC_PRED8x8
Definition: h264pred.h:74
av_cold void ff_h264_pred_init(H264PredContext *h, int codec_id, const int bit_depth, const int chroma_format_idc)
Set the intra prediction function pointers.
Definition: h264pred.c:402
void ff_mpv_decode_defaults(MpegEncContext *s)
Set the given MpegEncContext to defaults for decoding.
Definition: mpegvideo.c:1050
static void rv34_mc_1mv(RV34DecContext *r, const int block_type, const int xoff, const int yoff, int mv_off, const int width, const int height, int dir)
Definition: rv34.c:770
#define IS_INTRA16x16(a)
Definition: mpegutils.h:72
int bits
Definition: get_bits.h:65
RV30/40 VLC tables.
int table_allocated
Definition: get_bits.h:67
int(* decode_mb_info)(struct RV34DecContext *r)
Definition: rv34.h:125
int first_slice_line
used in mpeg4 too to handle resync markers
Definition: mpegvideo.h:546
static const uint8_t rv34_inter_cbp[NUM_INTER_TABLES][4][CBP_VLC_SIZE]
Definition: rv34vlc.h:2890
int ff_rv34_decode_init_thread_copy(AVCodecContext *avctx)
Definition: rv34.c:1519
static void rv34_mc(RV34DecContext *r, const int block_type, const int xoff, const int yoff, int mv_off, const int width, const int height, int dir, const int thirdpel, int weighted, qpel_mc_func(*qpel_mc)[16], h264_chroma_mc_func(*chroma_mc))
generic motion compensation function
Definition: rv34.c:663
NULL
Definition: eval.c:55
static int rv34_decode_intra_macroblock(RV34DecContext *r, int8_t *intra_types)
Definition: rv34.c:1292
static int width
Definition: utils.c:156
#define AV_LOG_INFO
Standard information.
Definition: log.h:134
static int get_slice_offset(AVCodecContext *avctx, const uint8_t *buf, int n)
Definition: rv34.c:1570
#define MB_TYPE_8x16
Definition: avcodec.h:780
essential slice information
Definition: rv34.h:73
#define av_cold
Definition: attributes.h:66
ptrdiff_t linesize
line size, in bytes, may be different from width
Definition: mpegvideo.h:260
enum AVCodecID codec_id
Definition: avcodec.h:1067
static const uint8_t rv34_table_inter_firstpat[NUM_INTER_TABLES][2][FIRSTBLK_VLC_SIZE]
Definition: rv34vlc.h:2936
static const uint8_t rv34_table_intra_cbppat[NUM_INTRA_TABLES][2][CBPPAT_VLC_SIZE]
Definition: rv34vlc.h:42
static int rv34_decode_inter_mb_header(RV34DecContext *r, int8_t *intra_types)
Decode inter macroblock header and return CBP in case of success, -1 otherwise.
Definition: rv34.c:387
main external API structure.
Definition: avcodec.h:1050
#define FF_THREAD_FRAME
Decode more than one frame at once.
Definition: avcodec.h:2551
static const uint8_t part_sizes_w[RV34_MB_TYPES]
macroblock partition width in 8x8 blocks
Definition: rv34.c:449
#define MAX_VLC_SIZE
Definition: rv34vlc.h:40
RV34VLC * cur_vlcs
VLC set used for current frame decoding.
Definition: rv34.h:93
int height
picture size. must be a multiple of 16
Definition: mpegvideo.h:223
static const uint8_t rv34_inter_cbppat[NUM_INTER_TABLES][CBPPAT_VLC_SIZE]
Definition: rv34vlc.h:2305
SliceInfo si
current slice information
Definition: rv34.h:95
void(* pred16x16[4+3+2])(uint8_t *src, ptrdiff_t stride)
Definition: h264pred.h:98
P-frame macroblock, 8x8 motion compensation partitions.
Definition: rv34.h:46
static unsigned int get_bits1(GetBitContext *s)
Definition: get_bits.h:271
static void rv34_decoder_free(RV34DecContext *r)
Definition: rv34.c:1348
VLC cbp[2][4]
VLCs used for coded block patterns decoding.
Definition: rv34.h:65
struct AVFrame * f
Definition: mpegvideo.h:100
#define IS_8X16(a)
Definition: mpegutils.h:84
uint8_t * data
Definition: avcodec.h:973
static av_cold void rv34_init_tables(void)
Initialize all tables.
Definition: rv34.c:144
static int init_get_bits(GetBitContext *s, const uint8_t *buffer, int bit_size)
Initialize GetBitContext.
Definition: get_bits.h:375
av_cold int ff_rv34_decode_init(AVCodecContext *avctx)
Initialize decoder.
Definition: rv34.c:1472
#define MB_TYPE_16x16
Definition: avcodec.h:778
#define mid_pred
Definition: mathops.h:98
ptrdiff_t uvlinesize
line size, for chroma in bytes, may be different from width
Definition: mpegvideo.h:261
int ff_rv34_decode_frame(AVCodecContext *avctx, void *data, int *got_picture_ptr, AVPacket *avpkt)
Definition: rv34.c:1604
static int step
Definition: avplay.c:247
static const uint8_t rv34_table_inter_thirdpat[NUM_INTER_TABLES][2][OTHERBLK_VLC_SIZE]
Definition: rv34vlc.h:3880
int ff_mpv_frame_start(MpegEncContext *s, AVCodecContext *avctx)
generic function called after decoding the header and before a frame is decoded.
Definition: mpegvideo.c:1677
static int rv34_decode_inter_macroblock(RV34DecContext *r, int8_t *intra_types)
Definition: rv34.c:1184
int allocate_progress
Whether to allocate progress for frame threading.
Definition: internal.h:79
int intra_types_stride
block types array stride
Definition: rv34.h:89
int pict_type
AV_PICTURE_TYPE_I, AV_PICTURE_TYPE_P, AV_PICTURE_TYPE_B, ...
Definition: mpegvideo.h:339
miscellaneous RV30/40 tables
int(* decode_intra_types)(struct RV34DecContext *r, GetBitContext *gb, int8_t *dst)
Definition: rv34.h:126
const uint8_t * quant
static void rv34_pred_mv_rv3(RV34DecContext *r, int block_type, int dir)
motion vector prediction - RV3 version
Definition: rv34.c:600
static int check_slice_end(RV34DecContext *r, MpegEncContext *s)
Definition: rv34.c:1332
void * priv_data
Definition: avcodec.h:1092
int is16
current block has additional 16x16 specific features or not
Definition: rv34.h:101
int8_t * intra_types
block types
Definition: rv34.h:88
static const uint8_t rv34_table_intra_cbp[NUM_INTRA_TABLES][8][CBP_VLC_SIZE]
Definition: rv34vlc.h:886
P-frame macroblock, one motion frame.
Definition: rv34.h:45
int b8_stride
2*mb_width+1 used for some 8x8 block arrays to allow simple addressing
Definition: mpegvideo.h:257
int cur_pts
Definition: rv34.h:107
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31))))#defineSET_CONV_FUNC_GROUP(ofmt, ifmt) staticvoidset_generic_function(AudioConvert *ac){}voidff_audio_convert_free(AudioConvert **ac){if(!*ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, intsample_rate, intapply_map){AudioConvert *ac;intin_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) returnNULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method!=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt)>2){ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc){av_free(ac);returnNULL;}returnac;}in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar){ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar?ac->channels:1;}elseif(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;elseac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);returnac;}intff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){intuse_generic=1;intlen=in->nb_samples;intp;if(ac->dc){av_dlog(ac->avr,"%dsamples-audio_convert:%sto%s(dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));returnff_convert_dither(ac-> dc
Definition: vp9.h:56
static int rv34_decode_cbp(GetBitContext *gb, RV34VLC *vlc, int table)
Decode coded block pattern.
Definition: rv34.c:187
int height
Definition: gxfenc.c:72
MpegEncContext.
Definition: mpegvideo.h:204
Picture * next_picture_ptr
pointer to the next picture (for bidir pred)
Definition: mpegvideo.h:309
av_cold int ff_rv34_decode_end(AVCodecContext *avctx)
Definition: rv34.c:1805
int8_t * qscale_table
Definition: mpegvideo.h:104
struct AVCodecContext * avctx
Definition: mpegvideo.h:221
static const uint8_t rv34_cbp_code[16]
values used to reconstruct coded block pattern
Definition: rv34data.h:42
int weight1
Definition: rv34.h:109
#define VERT_LEFT_PRED_RV40_NODOWN
Definition: h264pred.h:56
discard all non reference
Definition: avcodec.h:565
#define OTHERBLK_VLC_SIZE
Definition: rv34vlc.h:38
static const uint8_t avail_indexes[4]
availability index for subblocks
Definition: rv34.c:455
uint8_t * tmp_b_block_uv[4]
Definition: rv34.h:121
common internal api header.
int mb_stride
mb_width+1 used for some arrays to allow simple addressing of left & top MBs without sig11 ...
Definition: mpegvideo.h:256
int mv_weight2
Definition: rv34.h:110
uint8_t * dest[3]
Definition: mpegvideo.h:417
#define MB_TYPE_8x8
Definition: avcodec.h:781
B-frame macroblock, backward prediction.
Definition: rv34.h:48
static const uint8_t rv34_mb_bits_sizes[6]
bits needed to code the slice offset for the given size
Definition: rv34data.h:124
int ff_rv34_decode_update_thread_context(AVCodecContext *dst, const AVCodecContext *src)
Definition: rv34.c:1540
Picture * last_picture_ptr
pointer to the previous picture.
Definition: mpegvideo.h:308
Bi-dir predicted.
Definition: avutil.h:255
VLC third_pattern[2]
VLCs used for decoding coefficients in the last subblock.
Definition: rv34.h:68
static const int num_mvs[RV34_MB_TYPES]
number of motion vectors in each macroblock type
Definition: rv34.c:841
int ff_rv34_get_start_offset(GetBitContext *gb, int mb_size)
Decode starting slice position.
Definition: rv34.c:329
#define MB_TYPE_16x8
Definition: avcodec.h:779
static const uint8_t modulo_three_table[108]
precalculated results of division by three and modulo three for values 0-107
Definition: rv34data.h:53
#define IS_INTRA(x, y)
#define NUM_INTER_TABLES
Definition: rv34vlc.h:33
decoder context
Definition: rv34.h:84
#define AV_RB32(x)
Definition: intreadwrite.h:232
Definition: vf_drawbox.c:37
av_cold int ff_mpv_common_init(MpegEncContext *s)
init common structure for both encoder and decoder.
Definition: mpegvideo.c:1235
VideoDSPContext vdsp
Definition: mpegvideo.h:360
#define IS_8X8(a)
Definition: mpegutils.h:85
#define AV_RL32(x)
Definition: intreadwrite.h:248
void ff_mpv_frame_end(MpegEncContext *s)
Definition: mpegvideo.c:1889
int resync_mb_y
y position of last resync marker
Definition: mpegvideo.h:473
int16_t(* block)[64]
points to one of the following blocks
Definition: mpegvideo.h:600
int block_type
current block type
Definition: rv34.h:98
VLC_TYPE(* table)[2]
code, bits
Definition: get_bits.h:66
int next_pts
Definition: rv34.h:107
const uint8_t * luma_dc_quant_i
luma subblock DC quantizer for intraframes
Definition: rv34.h:90
static const uint8_t rv34_count_ones[16]
number of ones in nibble minus one
Definition: rv34data.h:35
int8_t * intra_types_hist
old block types, used for prediction
Definition: rv34.h:87
rv34_inv_transform_func rv34_inv_transform
Definition: rv34dsp.h:68
uint32_t * mb_type
types and macros are defined in mpegutils.h
Definition: mpegvideo.h:110
#define LOCAL_ALIGNED_16(t, v,...)
Definition: internal.h:114
static void decode_subblock(int16_t *dst, int code, const int is_block2, GetBitContext *gb, VLC *vlc, int q)
Decode 2x2 subblock of coefficients.
Definition: rv34.c:240
int type
slice type (intra, inter)
Definition: rv34.h:74
h264_chroma_mc_func avg_chroma_pixels_tab[3]
Definition: rv34dsp.h:61
static void decode_coeff(int16_t *dst, int coef, int esc, GetBitContext *gb, VLC *vlc, int q)
Get one coefficient value from the bistream and store it.
Definition: rv34.c:220
static RV34VLC intra_vlcs[NUM_INTRA_TABLES]
Definition: rv34.c:68
int rv30
indicates which RV variasnt is currently decoded
Definition: rv34.h:104
exp golomb vlc stuff
This structure stores compressed data.
Definition: avcodec.h:950
h264_chroma_mc_func put_chroma_pixels_tab[3]
Definition: rv34dsp.h:60
Intra macroblock.
Definition: rv34.h:43
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:141
void(* loop_filter)(struct RV34DecContext *r, int row)
Definition: rv34.h:127
int chroma_vlc
which VLC set will be used for decoding of chroma blocks
Definition: rv34.h:100
#define FFMIN(a, b)
Definition: common.h:57
for(j=16;j >0;--j)
RV34DSPContext rdsp
Definition: rv34.h:86
#define MB_TYPE_L0
Definition: avcodec.h:791
Predicted.
Definition: avutil.h:254
int pts
frame timestamp
Definition: rv34.h:80
void * av_mallocz(size_t size) av_malloc_attrib 1(1)
Allocate a block of size bytes with alignment suitable for all memory accesses (including vectors if ...
Definition: mem.c:205
static const uint8_t rv34_intra_coeff[NUM_INTRA_TABLES][COEFF_VLC_SIZE]
Definition: rv34vlc.h:2281
uint8_t * cbp_chroma
CBP values for chroma subblocks.
Definition: rv34.h:113