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bink.c
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1 /*
2  * Bink video decoder
3  * Copyright (c) 2009 Konstantin Shishkov
4  * Copyright (C) 2011 Peter Ross <pross@xvid.org>
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg 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.
12  *
13  * FFmpeg 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.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 #include "libavutil/attributes.h"
24 #include "libavutil/imgutils.h"
25 #include "libavutil/internal.h"
26 
27 #define BITSTREAM_READER_LE
28 #include "avcodec.h"
29 #include "binkdata.h"
30 #include "binkdsp.h"
31 #include "blockdsp.h"
32 #include "get_bits.h"
33 #include "hpeldsp.h"
34 #include "internal.h"
35 #include "mathops.h"
36 
37 #define BINK_FLAG_ALPHA 0x00100000
38 #define BINK_FLAG_GRAY 0x00020000
39 
40 static VLC bink_trees[16];
41 
42 /**
43  * IDs for different data types used in old version of Bink video codec
44  */
45 enum OldSources {
46  BINKB_SRC_BLOCK_TYPES = 0, ///< 8x8 block types
47  BINKB_SRC_COLORS, ///< pixel values used for different block types
48  BINKB_SRC_PATTERN, ///< 8-bit values for 2-colour pattern fill
49  BINKB_SRC_X_OFF, ///< X components of motion value
50  BINKB_SRC_Y_OFF, ///< Y components of motion value
51  BINKB_SRC_INTRA_DC, ///< DC values for intrablocks with DCT
52  BINKB_SRC_INTER_DC, ///< DC values for interblocks with DCT
53  BINKB_SRC_INTRA_Q, ///< quantizer values for intrablocks with DCT
54  BINKB_SRC_INTER_Q, ///< quantizer values for interblocks with DCT
55  BINKB_SRC_INTER_COEFS, ///< number of coefficients for residue blocks
56 
58 };
59 
60 static const int binkb_bundle_sizes[BINKB_NB_SRC] = {
61  4, 8, 8, 5, 5, 11, 11, 4, 4, 7
62 };
63 
64 static const int binkb_bundle_signed[BINKB_NB_SRC] = {
65  0, 0, 0, 1, 1, 0, 1, 0, 0, 0
66 };
67 
68 static int32_t binkb_intra_quant[16][64];
69 static int32_t binkb_inter_quant[16][64];
70 
71 /**
72  * IDs for different data types used in Bink video codec
73  */
74 enum Sources {
75  BINK_SRC_BLOCK_TYPES = 0, ///< 8x8 block types
76  BINK_SRC_SUB_BLOCK_TYPES, ///< 16x16 block types (a subset of 8x8 block types)
77  BINK_SRC_COLORS, ///< pixel values used for different block types
78  BINK_SRC_PATTERN, ///< 8-bit values for 2-colour pattern fill
79  BINK_SRC_X_OFF, ///< X components of motion value
80  BINK_SRC_Y_OFF, ///< Y components of motion value
81  BINK_SRC_INTRA_DC, ///< DC values for intrablocks with DCT
82  BINK_SRC_INTER_DC, ///< DC values for interblocks with DCT
83  BINK_SRC_RUN, ///< run lengths for special fill block
84 
86 };
87 
88 /**
89  * data needed to decode 4-bit Huffman-coded value
90  */
91 typedef struct Tree {
92  int vlc_num; ///< tree number (in bink_trees[])
93  uint8_t syms[16]; ///< leaf value to symbol mapping
94 } Tree;
95 
96 #define GET_HUFF(gb, tree) (tree).syms[get_vlc2(gb, bink_trees[(tree).vlc_num].table,\
97  bink_trees[(tree).vlc_num].bits, 1)]
98 
99 /**
100  * data structure used for decoding single Bink data type
101  */
102 typedef struct Bundle {
103  int len; ///< length of number of entries to decode (in bits)
104  Tree tree; ///< Huffman tree-related data
105  uint8_t *data; ///< buffer for decoded symbols
106  uint8_t *data_end; ///< buffer end
107  uint8_t *cur_dec; ///< pointer to the not yet decoded part of the buffer
108  uint8_t *cur_ptr; ///< pointer to the data that is not read from buffer yet
109 } Bundle;
110 
111 /*
112  * Decoder context
113  */
114 typedef struct BinkContext {
120  int version; ///< internal Bink file version
123  unsigned frame_num;
124 
125  Bundle bundle[BINKB_NB_SRC]; ///< bundles for decoding all data types
126  Tree col_high[16]; ///< trees for decoding high nibble in "colours" data type
127  int col_lastval; ///< value of last decoded high nibble in "colours" data type
128 } BinkContext;
129 
130 /**
131  * Bink video block types
132  */
134  SKIP_BLOCK = 0, ///< skipped block
135  SCALED_BLOCK, ///< block has size 16x16
136  MOTION_BLOCK, ///< block is copied from previous frame with some offset
137  RUN_BLOCK, ///< block is composed from runs of colours with custom scan order
138  RESIDUE_BLOCK, ///< motion block with some difference added
139  INTRA_BLOCK, ///< intra DCT block
140  FILL_BLOCK, ///< block is filled with single colour
141  INTER_BLOCK, ///< motion block with DCT applied to the difference
142  PATTERN_BLOCK, ///< block is filled with two colours following custom pattern
143  RAW_BLOCK, ///< uncoded 8x8 block
144 };
145 
146 /**
147  * Initialize length in all bundles.
148  *
149  * @param c decoder context
150  * @param width plane width
151  * @param bw plane width in 8x8 blocks
152  */
153 static void init_lengths(BinkContext *c, int width, int bw)
154 {
155  width = FFALIGN(width, 8);
156 
157  c->bundle[BINK_SRC_BLOCK_TYPES].len = av_log2((width >> 3) + 511) + 1;
158 
159  c->bundle[BINK_SRC_SUB_BLOCK_TYPES].len = av_log2((width >> 4) + 511) + 1;
160 
161  c->bundle[BINK_SRC_COLORS].len = av_log2(bw*64 + 511) + 1;
162 
166  c->bundle[BINK_SRC_Y_OFF].len = av_log2((width >> 3) + 511) + 1;
167 
168  c->bundle[BINK_SRC_PATTERN].len = av_log2((bw << 3) + 511) + 1;
169 
170  c->bundle[BINK_SRC_RUN].len = av_log2(bw*48 + 511) + 1;
171 }
172 
173 /**
174  * Allocate memory for bundles.
175  *
176  * @param c decoder context
177  */
179 {
180  int bw, bh, blocks;
181  int i;
182 
183  bw = (c->avctx->width + 7) >> 3;
184  bh = (c->avctx->height + 7) >> 3;
185  blocks = bw * bh;
186 
187  for (i = 0; i < BINKB_NB_SRC; i++) {
188  c->bundle[i].data = av_mallocz(blocks * 64);
189  if (!c->bundle[i].data)
190  return AVERROR(ENOMEM);
191  c->bundle[i].data_end = c->bundle[i].data + blocks * 64;
192  }
193 
194  return 0;
195 }
196 
197 /**
198  * Free memory used by bundles.
199  *
200  * @param c decoder context
201  */
203 {
204  int i;
205  for (i = 0; i < BINKB_NB_SRC; i++)
206  av_freep(&c->bundle[i].data);
207 }
208 
209 /**
210  * Merge two consequent lists of equal size depending on bits read.
211  *
212  * @param gb context for reading bits
213  * @param dst buffer where merged list will be written to
214  * @param src pointer to the head of the first list (the second lists starts at src+size)
215  * @param size input lists size
216  */
217 static void merge(GetBitContext *gb, uint8_t *dst, uint8_t *src, int size)
218 {
219  uint8_t *src2 = src + size;
220  int size2 = size;
221 
222  do {
223  if (!get_bits1(gb)) {
224  *dst++ = *src++;
225  size--;
226  } else {
227  *dst++ = *src2++;
228  size2--;
229  }
230  } while (size && size2);
231 
232  while (size--)
233  *dst++ = *src++;
234  while (size2--)
235  *dst++ = *src2++;
236 }
237 
238 /**
239  * Read information about Huffman tree used to decode data.
240  *
241  * @param gb context for reading bits
242  * @param tree pointer for storing tree data
243  */
244 static void read_tree(GetBitContext *gb, Tree *tree)
245 {
246  uint8_t tmp1[16] = { 0 }, tmp2[16], *in = tmp1, *out = tmp2;
247  int i, t, len;
248 
249  tree->vlc_num = get_bits(gb, 4);
250  if (!tree->vlc_num) {
251  for (i = 0; i < 16; i++)
252  tree->syms[i] = i;
253  return;
254  }
255  if (get_bits1(gb)) {
256  len = get_bits(gb, 3);
257  for (i = 0; i <= len; i++) {
258  tree->syms[i] = get_bits(gb, 4);
259  tmp1[tree->syms[i]] = 1;
260  }
261  for (i = 0; i < 16 && len < 16 - 1; i++)
262  if (!tmp1[i])
263  tree->syms[++len] = i;
264  } else {
265  len = get_bits(gb, 2);
266  for (i = 0; i < 16; i++)
267  in[i] = i;
268  for (i = 0; i <= len; i++) {
269  int size = 1 << i;
270  for (t = 0; t < 16; t += size << 1)
271  merge(gb, out + t, in + t, size);
272  FFSWAP(uint8_t*, in, out);
273  }
274  memcpy(tree->syms, in, 16);
275  }
276 }
277 
278 /**
279  * Prepare bundle for decoding data.
280  *
281  * @param gb context for reading bits
282  * @param c decoder context
283  * @param bundle_num number of the bundle to initialize
284  */
285 static void read_bundle(GetBitContext *gb, BinkContext *c, int bundle_num)
286 {
287  int i;
288 
289  if (bundle_num == BINK_SRC_COLORS) {
290  for (i = 0; i < 16; i++)
291  read_tree(gb, &c->col_high[i]);
292  c->col_lastval = 0;
293  }
294  if (bundle_num != BINK_SRC_INTRA_DC && bundle_num != BINK_SRC_INTER_DC)
295  read_tree(gb, &c->bundle[bundle_num].tree);
296  c->bundle[bundle_num].cur_dec =
297  c->bundle[bundle_num].cur_ptr = c->bundle[bundle_num].data;
298 }
299 
300 /**
301  * common check before starting decoding bundle data
302  *
303  * @param gb context for reading bits
304  * @param b bundle
305  * @param t variable where number of elements to decode will be stored
306  */
307 #define CHECK_READ_VAL(gb, b, t) \
308  if (!b->cur_dec || (b->cur_dec > b->cur_ptr)) \
309  return 0; \
310  t = get_bits(gb, b->len); \
311  if (!t) { \
312  b->cur_dec = NULL; \
313  return 0; \
314  } \
315 
316 static int read_runs(AVCodecContext *avctx, GetBitContext *gb, Bundle *b)
317 {
318  int t, v;
319  const uint8_t *dec_end;
320 
321  CHECK_READ_VAL(gb, b, t);
322  dec_end = b->cur_dec + t;
323  if (dec_end > b->data_end) {
324  av_log(avctx, AV_LOG_ERROR, "Run value went out of bounds\n");
325  return AVERROR_INVALIDDATA;
326  }
327  if (get_bits1(gb)) {
328  v = get_bits(gb, 4);
329  memset(b->cur_dec, v, t);
330  b->cur_dec += t;
331  } else {
332  while (b->cur_dec < dec_end)
333  *b->cur_dec++ = GET_HUFF(gb, b->tree);
334  }
335  return 0;
336 }
337 
339 {
340  int t, sign, v;
341  const uint8_t *dec_end;
342 
343  CHECK_READ_VAL(gb, b, t);
344  dec_end = b->cur_dec + t;
345  if (dec_end > b->data_end) {
346  av_log(avctx, AV_LOG_ERROR, "Too many motion values\n");
347  return AVERROR_INVALIDDATA;
348  }
349  if (get_bits1(gb)) {
350  v = get_bits(gb, 4);
351  if (v) {
352  sign = -get_bits1(gb);
353  v = (v ^ sign) - sign;
354  }
355  memset(b->cur_dec, v, t);
356  b->cur_dec += t;
357  } else {
358  while (b->cur_dec < dec_end) {
359  v = GET_HUFF(gb, b->tree);
360  if (v) {
361  sign = -get_bits1(gb);
362  v = (v ^ sign) - sign;
363  }
364  *b->cur_dec++ = v;
365  }
366  }
367  return 0;
368 }
369 
370 static const uint8_t bink_rlelens[4] = { 4, 8, 12, 32 };
371 
373 {
374  BinkContext * const c = avctx->priv_data;
375  int t, v;
376  int last = 0;
377  const uint8_t *dec_end;
378 
379  CHECK_READ_VAL(gb, b, t);
380  if (c->version == 'k') {
381  t ^= 0xBBu;
382  if (t == 0) {
383  b->cur_dec = NULL;
384  return 0;
385  }
386  }
387  dec_end = b->cur_dec + t;
388  if (dec_end > b->data_end) {
389  av_log(avctx, AV_LOG_ERROR, "Too many block type values\n");
390  return AVERROR_INVALIDDATA;
391  }
392  if (get_bits1(gb)) {
393  v = get_bits(gb, 4);
394  memset(b->cur_dec, v, t);
395  b->cur_dec += t;
396  } else {
397  while (b->cur_dec < dec_end) {
398  v = GET_HUFF(gb, b->tree);
399  if (v < 12) {
400  last = v;
401  *b->cur_dec++ = v;
402  } else {
403  int run = bink_rlelens[v - 12];
404 
405  if (dec_end - b->cur_dec < run)
406  return AVERROR_INVALIDDATA;
407  memset(b->cur_dec, last, run);
408  b->cur_dec += run;
409  }
410  }
411  }
412  return 0;
413 }
414 
416 {
417  int t, v;
418  const uint8_t *dec_end;
419 
420  CHECK_READ_VAL(gb, b, t);
421  dec_end = b->cur_dec + t;
422  if (dec_end > b->data_end) {
423  av_log(avctx, AV_LOG_ERROR, "Too many pattern values\n");
424  return AVERROR_INVALIDDATA;
425  }
426  while (b->cur_dec < dec_end) {
427  v = GET_HUFF(gb, b->tree);
428  v |= GET_HUFF(gb, b->tree) << 4;
429  *b->cur_dec++ = v;
430  }
431 
432  return 0;
433 }
434 
436 {
437  int t, sign, v;
438  const uint8_t *dec_end;
439 
440  CHECK_READ_VAL(gb, b, t);
441  dec_end = b->cur_dec + t;
442  if (dec_end > b->data_end) {
443  av_log(c->avctx, AV_LOG_ERROR, "Too many color values\n");
444  return AVERROR_INVALIDDATA;
445  }
446  if (get_bits1(gb)) {
447  c->col_lastval = GET_HUFF(gb, c->col_high[c->col_lastval]);
448  v = GET_HUFF(gb, b->tree);
449  v = (c->col_lastval << 4) | v;
450  if (c->version < 'i') {
451  sign = ((int8_t) v) >> 7;
452  v = ((v & 0x7F) ^ sign) - sign;
453  v += 0x80;
454  }
455  memset(b->cur_dec, v, t);
456  b->cur_dec += t;
457  } else {
458  while (b->cur_dec < dec_end) {
459  c->col_lastval = GET_HUFF(gb, c->col_high[c->col_lastval]);
460  v = GET_HUFF(gb, b->tree);
461  v = (c->col_lastval << 4) | v;
462  if (c->version < 'i') {
463  sign = ((int8_t) v) >> 7;
464  v = ((v & 0x7F) ^ sign) - sign;
465  v += 0x80;
466  }
467  *b->cur_dec++ = v;
468  }
469  }
470  return 0;
471 }
472 
473 /** number of bits used to store first DC value in bundle */
474 #define DC_START_BITS 11
475 
476 static int read_dcs(AVCodecContext *avctx, GetBitContext *gb, Bundle *b,
477  int start_bits, int has_sign)
478 {
479  int i, j, len, len2, bsize, sign, v, v2;
480  int16_t *dst = (int16_t*)b->cur_dec;
481  int16_t *dst_end = (int16_t*)b->data_end;
482 
483  CHECK_READ_VAL(gb, b, len);
484  v = get_bits(gb, start_bits - has_sign);
485  if (v && has_sign) {
486  sign = -get_bits1(gb);
487  v = (v ^ sign) - sign;
488  }
489  if (dst_end - dst < 1)
490  return AVERROR_INVALIDDATA;
491  *dst++ = v;
492  len--;
493  for (i = 0; i < len; i += 8) {
494  len2 = FFMIN(len - i, 8);
495  if (dst_end - dst < len2)
496  return AVERROR_INVALIDDATA;
497  bsize = get_bits(gb, 4);
498  if (bsize) {
499  for (j = 0; j < len2; j++) {
500  v2 = get_bits(gb, bsize);
501  if (v2) {
502  sign = -get_bits1(gb);
503  v2 = (v2 ^ sign) - sign;
504  }
505  v += v2;
506  *dst++ = v;
507  if (v < -32768 || v > 32767) {
508  av_log(avctx, AV_LOG_ERROR, "DC value went out of bounds: %d\n", v);
509  return AVERROR_INVALIDDATA;
510  }
511  }
512  } else {
513  for (j = 0; j < len2; j++)
514  *dst++ = v;
515  }
516  }
517 
518  b->cur_dec = (uint8_t*)dst;
519  return 0;
520 }
521 
522 /**
523  * Retrieve next value from bundle.
524  *
525  * @param c decoder context
526  * @param bundle bundle number
527  */
528 static inline int get_value(BinkContext *c, int bundle)
529 {
530  int ret;
531 
532  if (bundle < BINK_SRC_X_OFF || bundle == BINK_SRC_RUN)
533  return *c->bundle[bundle].cur_ptr++;
534  if (bundle == BINK_SRC_X_OFF || bundle == BINK_SRC_Y_OFF)
535  return (int8_t)*c->bundle[bundle].cur_ptr++;
536  ret = *(int16_t*)c->bundle[bundle].cur_ptr;
537  c->bundle[bundle].cur_ptr += 2;
538  return ret;
539 }
540 
541 static av_cold void binkb_init_bundle(BinkContext *c, int bundle_num)
542 {
543  c->bundle[bundle_num].cur_dec =
544  c->bundle[bundle_num].cur_ptr = c->bundle[bundle_num].data;
545  c->bundle[bundle_num].len = 13;
546 }
547 
549 {
550  int i;
551  for (i = 0; i < BINKB_NB_SRC; i++)
552  binkb_init_bundle(c, i);
553 }
554 
555 static int binkb_read_bundle(BinkContext *c, GetBitContext *gb, int bundle_num)
556 {
557  const int bits = binkb_bundle_sizes[bundle_num];
558  const int mask = 1 << (bits - 1);
559  const int issigned = binkb_bundle_signed[bundle_num];
560  Bundle *b = &c->bundle[bundle_num];
561  int i, len;
562 
563  CHECK_READ_VAL(gb, b, len);
564  if (b->data_end - b->cur_dec < len * (1 + (bits > 8)))
565  return AVERROR_INVALIDDATA;
566  if (bits <= 8) {
567  if (!issigned) {
568  for (i = 0; i < len; i++)
569  *b->cur_dec++ = get_bits(gb, bits);
570  } else {
571  for (i = 0; i < len; i++)
572  *b->cur_dec++ = get_bits(gb, bits) - mask;
573  }
574  } else {
575  int16_t *dst = (int16_t*)b->cur_dec;
576 
577  if (!issigned) {
578  for (i = 0; i < len; i++)
579  *dst++ = get_bits(gb, bits);
580  } else {
581  for (i = 0; i < len; i++)
582  *dst++ = get_bits(gb, bits) - mask;
583  }
584  b->cur_dec = (uint8_t*)dst;
585  }
586  return 0;
587 }
588 
589 static inline int binkb_get_value(BinkContext *c, int bundle_num)
590 {
591  int16_t ret;
592  const int bits = binkb_bundle_sizes[bundle_num];
593 
594  if (bits <= 8) {
595  int val = *c->bundle[bundle_num].cur_ptr++;
596  return binkb_bundle_signed[bundle_num] ? (int8_t)val : val;
597  }
598  ret = *(int16_t*)c->bundle[bundle_num].cur_ptr;
599  c->bundle[bundle_num].cur_ptr += 2;
600  return ret;
601 }
602 
603 /**
604  * Read 8x8 block of DCT coefficients.
605  *
606  * @param gb context for reading bits
607  * @param block place for storing coefficients
608  * @param scan scan order table
609  * @param quant_matrices quantization matrices
610  * @return 0 for success, negative value in other cases
611  */
613  const uint8_t *scan, int *coef_count_,
614  int coef_idx[64], int q)
615 {
616  int coef_list[128];
617  int mode_list[128];
618  int i, t, bits, ccoef, mode, sign;
619  int list_start = 64, list_end = 64, list_pos;
620  int coef_count = 0;
621  int quant_idx;
622 
623  coef_list[list_end] = 4; mode_list[list_end++] = 0;
624  coef_list[list_end] = 24; mode_list[list_end++] = 0;
625  coef_list[list_end] = 44; mode_list[list_end++] = 0;
626  coef_list[list_end] = 1; mode_list[list_end++] = 3;
627  coef_list[list_end] = 2; mode_list[list_end++] = 3;
628  coef_list[list_end] = 3; mode_list[list_end++] = 3;
629 
630  for (bits = get_bits(gb, 4) - 1; bits >= 0; bits--) {
631  list_pos = list_start;
632  while (list_pos < list_end) {
633  if (!(mode_list[list_pos] | coef_list[list_pos]) || !get_bits1(gb)) {
634  list_pos++;
635  continue;
636  }
637  ccoef = coef_list[list_pos];
638  mode = mode_list[list_pos];
639  switch (mode) {
640  case 0:
641  coef_list[list_pos] = ccoef + 4;
642  mode_list[list_pos] = 1;
643  case 2:
644  if (mode == 2) {
645  coef_list[list_pos] = 0;
646  mode_list[list_pos++] = 0;
647  }
648  for (i = 0; i < 4; i++, ccoef++) {
649  if (get_bits1(gb)) {
650  coef_list[--list_start] = ccoef;
651  mode_list[ list_start] = 3;
652  } else {
653  if (!bits) {
654  t = 1 - (get_bits1(gb) << 1);
655  } else {
656  t = get_bits(gb, bits) | 1 << bits;
657  sign = -get_bits1(gb);
658  t = (t ^ sign) - sign;
659  }
660  block[scan[ccoef]] = t;
661  coef_idx[coef_count++] = ccoef;
662  }
663  }
664  break;
665  case 1:
666  mode_list[list_pos] = 2;
667  for (i = 0; i < 3; i++) {
668  ccoef += 4;
669  coef_list[list_end] = ccoef;
670  mode_list[list_end++] = 2;
671  }
672  break;
673  case 3:
674  if (!bits) {
675  t = 1 - (get_bits1(gb) << 1);
676  } else {
677  t = get_bits(gb, bits) | 1 << bits;
678  sign = -get_bits1(gb);
679  t = (t ^ sign) - sign;
680  }
681  block[scan[ccoef]] = t;
682  coef_idx[coef_count++] = ccoef;
683  coef_list[list_pos] = 0;
684  mode_list[list_pos++] = 0;
685  break;
686  }
687  }
688  }
689 
690  if (q == -1) {
691  quant_idx = get_bits(gb, 4);
692  } else {
693  quant_idx = q;
694  if (quant_idx > 15U) {
695  av_log(NULL, AV_LOG_ERROR, "quant_index %d out of range\n", quant_idx);
696  return AVERROR_INVALIDDATA;
697  }
698  }
699 
700  *coef_count_ = coef_count;
701 
702  return quant_idx;
703 }
704 
705 static void unquantize_dct_coeffs(int32_t block[64], const int32_t quant[64],
706  int coef_count, int coef_idx[64],
707  const uint8_t *scan)
708 {
709  int i;
710  block[0] = (block[0] * quant[0]) >> 11;
711  for (i = 0; i < coef_count; i++) {
712  int idx = coef_idx[i];
713  block[scan[idx]] = (block[scan[idx]] * quant[idx]) >> 11;
714  }
715 }
716 
717 /**
718  * Read 8x8 block with residue after motion compensation.
719  *
720  * @param gb context for reading bits
721  * @param block place to store read data
722  * @param masks_count number of masks to decode
723  * @return 0 on success, negative value in other cases
724  */
725 static int read_residue(GetBitContext *gb, int16_t block[64], int masks_count)
726 {
727  int coef_list[128];
728  int mode_list[128];
729  int i, sign, mask, ccoef, mode;
730  int list_start = 64, list_end = 64, list_pos;
731  int nz_coeff[64];
732  int nz_coeff_count = 0;
733 
734  coef_list[list_end] = 4; mode_list[list_end++] = 0;
735  coef_list[list_end] = 24; mode_list[list_end++] = 0;
736  coef_list[list_end] = 44; mode_list[list_end++] = 0;
737  coef_list[list_end] = 0; mode_list[list_end++] = 2;
738 
739  for (mask = 1 << get_bits(gb, 3); mask; mask >>= 1) {
740  for (i = 0; i < nz_coeff_count; i++) {
741  if (!get_bits1(gb))
742  continue;
743  if (block[nz_coeff[i]] < 0)
744  block[nz_coeff[i]] -= mask;
745  else
746  block[nz_coeff[i]] += mask;
747  masks_count--;
748  if (masks_count < 0)
749  return 0;
750  }
751  list_pos = list_start;
752  while (list_pos < list_end) {
753  if (!(coef_list[list_pos] | mode_list[list_pos]) || !get_bits1(gb)) {
754  list_pos++;
755  continue;
756  }
757  ccoef = coef_list[list_pos];
758  mode = mode_list[list_pos];
759  switch (mode) {
760  case 0:
761  coef_list[list_pos] = ccoef + 4;
762  mode_list[list_pos] = 1;
763  case 2:
764  if (mode == 2) {
765  coef_list[list_pos] = 0;
766  mode_list[list_pos++] = 0;
767  }
768  for (i = 0; i < 4; i++, ccoef++) {
769  if (get_bits1(gb)) {
770  coef_list[--list_start] = ccoef;
771  mode_list[ list_start] = 3;
772  } else {
773  nz_coeff[nz_coeff_count++] = bink_scan[ccoef];
774  sign = -get_bits1(gb);
775  block[bink_scan[ccoef]] = (mask ^ sign) - sign;
776  masks_count--;
777  if (masks_count < 0)
778  return 0;
779  }
780  }
781  break;
782  case 1:
783  mode_list[list_pos] = 2;
784  for (i = 0; i < 3; i++) {
785  ccoef += 4;
786  coef_list[list_end] = ccoef;
787  mode_list[list_end++] = 2;
788  }
789  break;
790  case 3:
791  nz_coeff[nz_coeff_count++] = bink_scan[ccoef];
792  sign = -get_bits1(gb);
793  block[bink_scan[ccoef]] = (mask ^ sign) - sign;
794  coef_list[list_pos] = 0;
795  mode_list[list_pos++] = 0;
796  masks_count--;
797  if (masks_count < 0)
798  return 0;
799  break;
800  }
801  }
802  }
803 
804  return 0;
805 }
806 
807 /**
808  * Copy 8x8 block from source to destination, where src and dst may be overlapped
809  */
810 static inline void put_pixels8x8_overlapped(uint8_t *dst, uint8_t *src, int stride)
811 {
812  uint8_t tmp[64];
813  int i;
814  for (i = 0; i < 8; i++)
815  memcpy(tmp + i*8, src + i*stride, 8);
816  for (i = 0; i < 8; i++)
817  memcpy(dst + i*stride, tmp + i*8, 8);
818 }
819 
821  int plane_idx, int is_key, int is_chroma)
822 {
823  int blk, ret;
824  int i, j, bx, by;
825  uint8_t *dst, *ref, *ref_start, *ref_end;
826  int v, col[2];
827  const uint8_t *scan;
828  int xoff, yoff;
829  LOCAL_ALIGNED_32(int16_t, block, [64]);
830  LOCAL_ALIGNED_16(int32_t, dctblock, [64]);
831  int coordmap[64];
832  int ybias = is_key ? -15 : 0;
833  int qp, quant_idx, coef_count, coef_idx[64];
834 
835  const int stride = frame->linesize[plane_idx];
836  int bw = is_chroma ? (c->avctx->width + 15) >> 4 : (c->avctx->width + 7) >> 3;
837  int bh = is_chroma ? (c->avctx->height + 15) >> 4 : (c->avctx->height + 7) >> 3;
838 
840  ref_start = frame->data[plane_idx];
841  ref_end = frame->data[plane_idx] + (bh * frame->linesize[plane_idx] + bw) * 8;
842 
843  for (i = 0; i < 64; i++)
844  coordmap[i] = (i & 7) + (i >> 3) * stride;
845 
846  for (by = 0; by < bh; by++) {
847  for (i = 0; i < BINKB_NB_SRC; i++) {
848  if ((ret = binkb_read_bundle(c, gb, i)) < 0)
849  return ret;
850  }
851 
852  dst = frame->data[plane_idx] + 8*by*stride;
853  for (bx = 0; bx < bw; bx++, dst += 8) {
855  switch (blk) {
856  case 0:
857  break;
858  case 1:
859  scan = bink_patterns[get_bits(gb, 4)];
860  i = 0;
861  do {
862  int mode, run;
863 
864  mode = get_bits1(gb);
865  run = get_bits(gb, binkb_runbits[i]) + 1;
866 
867  i += run;
868  if (i > 64) {
869  av_log(c->avctx, AV_LOG_ERROR, "Run went out of bounds\n");
870  return AVERROR_INVALIDDATA;
871  }
872  if (mode) {
874  for (j = 0; j < run; j++)
875  dst[coordmap[*scan++]] = v;
876  } else {
877  for (j = 0; j < run; j++)
878  dst[coordmap[*scan++]] = binkb_get_value(c, BINKB_SRC_COLORS);
879  }
880  } while (i < 63);
881  if (i == 63)
882  dst[coordmap[*scan++]] = binkb_get_value(c, BINKB_SRC_COLORS);
883  break;
884  case 2:
885  memset(dctblock, 0, sizeof(*dctblock) * 64);
886  dctblock[0] = binkb_get_value(c, BINKB_SRC_INTRA_DC);
888  if ((quant_idx = read_dct_coeffs(gb, dctblock, bink_scan, &coef_count, coef_idx, qp)) < 0)
889  return quant_idx;
890  unquantize_dct_coeffs(dctblock, binkb_intra_quant[quant_idx], coef_count, coef_idx, bink_scan);
891  c->binkdsp.idct_put(dst, stride, dctblock);
892  break;
893  case 3:
894  xoff = binkb_get_value(c, BINKB_SRC_X_OFF);
895  yoff = binkb_get_value(c, BINKB_SRC_Y_OFF) + ybias;
896  ref = dst + xoff + yoff * stride;
897  if (ref < ref_start || ref + 8*stride > ref_end) {
898  av_log(c->avctx, AV_LOG_WARNING, "Reference block is out of bounds\n");
899  } else if (ref + 8*stride < dst || ref >= dst + 8*stride) {
900  c->hdsp.put_pixels_tab[1][0](dst, ref, stride, 8);
901  } else {
902  put_pixels8x8_overlapped(dst, ref, stride);
903  }
904  c->bdsp.clear_block(block);
906  read_residue(gb, block, v);
907  c->binkdsp.add_pixels8(dst, block, stride);
908  break;
909  case 4:
910  xoff = binkb_get_value(c, BINKB_SRC_X_OFF);
911  yoff = binkb_get_value(c, BINKB_SRC_Y_OFF) + ybias;
912  ref = dst + xoff + yoff * stride;
913  if (ref < ref_start || ref + 8 * stride > ref_end) {
914  av_log(c->avctx, AV_LOG_WARNING, "Reference block is out of bounds\n");
915  } else if (ref + 8*stride < dst || ref >= dst + 8*stride) {
916  c->hdsp.put_pixels_tab[1][0](dst, ref, stride, 8);
917  } else {
918  put_pixels8x8_overlapped(dst, ref, stride);
919  }
920  memset(dctblock, 0, sizeof(*dctblock) * 64);
921  dctblock[0] = binkb_get_value(c, BINKB_SRC_INTER_DC);
923  if ((quant_idx = read_dct_coeffs(gb, dctblock, bink_scan, &coef_count, coef_idx, qp)) < 0)
924  return quant_idx;
925  unquantize_dct_coeffs(dctblock, binkb_inter_quant[quant_idx], coef_count, coef_idx, bink_scan);
926  c->binkdsp.idct_add(dst, stride, dctblock);
927  break;
928  case 5:
930  c->bdsp.fill_block_tab[1](dst, v, stride, 8);
931  break;
932  case 6:
933  for (i = 0; i < 2; i++)
934  col[i] = binkb_get_value(c, BINKB_SRC_COLORS);
935  for (i = 0; i < 8; i++) {
937  for (j = 0; j < 8; j++, v >>= 1)
938  dst[i*stride + j] = col[v & 1];
939  }
940  break;
941  case 7:
942  xoff = binkb_get_value(c, BINKB_SRC_X_OFF);
943  yoff = binkb_get_value(c, BINKB_SRC_Y_OFF) + ybias;
944  ref = dst + xoff + yoff * stride;
945  if (ref < ref_start || ref + 8 * stride > ref_end) {
946  av_log(c->avctx, AV_LOG_WARNING, "Reference block is out of bounds\n");
947  } else if (ref + 8*stride < dst || ref >= dst + 8*stride) {
948  c->hdsp.put_pixels_tab[1][0](dst, ref, stride, 8);
949  } else {
950  put_pixels8x8_overlapped(dst, ref, stride);
951  }
952  break;
953  case 8:
954  for (i = 0; i < 8; i++)
955  memcpy(dst + i*stride, c->bundle[BINKB_SRC_COLORS].cur_ptr + i*8, 8);
956  c->bundle[BINKB_SRC_COLORS].cur_ptr += 64;
957  break;
958  default:
959  av_log(c->avctx, AV_LOG_ERROR, "Unknown block type %d\n", blk);
960  return AVERROR_INVALIDDATA;
961  }
962  }
963  }
964  if (get_bits_count(gb) & 0x1F) //next plane data starts at 32-bit boundary
965  skip_bits_long(gb, 32 - (get_bits_count(gb) & 0x1F));
966 
967  return 0;
968 }
969 
971  uint8_t *dst, uint8_t *prev, int stride,
972  uint8_t *ref_start,
973  uint8_t *ref_end)
974 {
975  int xoff = get_value(c, BINK_SRC_X_OFF);
976  int yoff = get_value(c, BINK_SRC_Y_OFF);
977  uint8_t *ref = prev + xoff + yoff * stride;
978  if (ref < ref_start || ref > ref_end) {
979  av_log(c->avctx, AV_LOG_ERROR, "Copy out of bounds @%d, %d\n",
980  xoff, yoff);
981  return AVERROR_INVALIDDATA;
982  }
983  c->hdsp.put_pixels_tab[1][0](dst, ref, stride, 8);
984 
985  return 0;
986 }
987 
989  int plane_idx, int is_chroma)
990 {
991  int blk, ret;
992  int i, j, bx, by;
993  uint8_t *dst, *prev, *ref_start, *ref_end;
994  int v, col[2];
995  const uint8_t *scan;
996  LOCAL_ALIGNED_32(int16_t, block, [64]);
997  LOCAL_ALIGNED_16(uint8_t, ublock, [64]);
998  LOCAL_ALIGNED_16(int32_t, dctblock, [64]);
999  int coordmap[64], quant_idx, coef_count, coef_idx[64];
1000 
1001  const int stride = frame->linesize[plane_idx];
1002  int bw = is_chroma ? (c->avctx->width + 15) >> 4 : (c->avctx->width + 7) >> 3;
1003  int bh = is_chroma ? (c->avctx->height + 15) >> 4 : (c->avctx->height + 7) >> 3;
1004  int width = c->avctx->width >> is_chroma;
1005  int height = c->avctx->height >> is_chroma;
1006 
1007  if (c->version == 'k' && get_bits1(gb)) {
1008  int fill = get_bits(gb, 8);
1009 
1010  dst = frame->data[plane_idx];
1011 
1012  for (i = 0; i < height; i++)
1013  memset(dst + i * stride, fill, width);
1014  goto end;
1015  }
1016 
1017  init_lengths(c, FFMAX(width, 8), bw);
1018  for (i = 0; i < BINK_NB_SRC; i++)
1019  read_bundle(gb, c, i);
1020 
1021  ref_start = c->last->data[plane_idx] ? c->last->data[plane_idx]
1022  : frame->data[plane_idx];
1023  ref_end = ref_start
1024  + (bw - 1 + c->last->linesize[plane_idx] * (bh - 1)) * 8;
1025 
1026  for (i = 0; i < 64; i++)
1027  coordmap[i] = (i & 7) + (i >> 3) * stride;
1028 
1029  for (by = 0; by < bh; by++) {
1030  if ((ret = read_block_types(c->avctx, gb, &c->bundle[BINK_SRC_BLOCK_TYPES])) < 0)
1031  return ret;
1032  if ((ret = read_block_types(c->avctx, gb, &c->bundle[BINK_SRC_SUB_BLOCK_TYPES])) < 0)
1033  return ret;
1034  if ((ret = read_colors(gb, &c->bundle[BINK_SRC_COLORS], c)) < 0)
1035  return ret;
1036  if ((ret = read_patterns(c->avctx, gb, &c->bundle[BINK_SRC_PATTERN])) < 0)
1037  return ret;
1038  if ((ret = read_motion_values(c->avctx, gb, &c->bundle[BINK_SRC_X_OFF])) < 0)
1039  return ret;
1040  if ((ret = read_motion_values(c->avctx, gb, &c->bundle[BINK_SRC_Y_OFF])) < 0)
1041  return ret;
1042  if ((ret = read_dcs(c->avctx, gb, &c->bundle[BINK_SRC_INTRA_DC], DC_START_BITS, 0)) < 0)
1043  return ret;
1044  if ((ret = read_dcs(c->avctx, gb, &c->bundle[BINK_SRC_INTER_DC], DC_START_BITS, 1)) < 0)
1045  return ret;
1046  if ((ret = read_runs(c->avctx, gb, &c->bundle[BINK_SRC_RUN])) < 0)
1047  return ret;
1048 
1049  if (by == bh)
1050  break;
1051  dst = frame->data[plane_idx] + 8*by*stride;
1052  prev = (c->last->data[plane_idx] ? c->last->data[plane_idx]
1053  : frame->data[plane_idx]) + 8*by*stride;
1054  for (bx = 0; bx < bw; bx++, dst += 8, prev += 8) {
1055  blk = get_value(c, BINK_SRC_BLOCK_TYPES);
1056  // 16x16 block type on odd line means part of the already decoded block, so skip it
1057  if ((by & 1) && blk == SCALED_BLOCK) {
1058  bx++;
1059  dst += 8;
1060  prev += 8;
1061  continue;
1062  }
1063  switch (blk) {
1064  case SKIP_BLOCK:
1065  c->hdsp.put_pixels_tab[1][0](dst, prev, stride, 8);
1066  break;
1067  case SCALED_BLOCK:
1069  switch (blk) {
1070  case RUN_BLOCK:
1071  scan = bink_patterns[get_bits(gb, 4)];
1072  i = 0;
1073  do {
1074  int run = get_value(c, BINK_SRC_RUN) + 1;
1075 
1076  i += run;
1077  if (i > 64) {
1078  av_log(c->avctx, AV_LOG_ERROR, "Run went out of bounds\n");
1079  return AVERROR_INVALIDDATA;
1080  }
1081  if (get_bits1(gb)) {
1082  v = get_value(c, BINK_SRC_COLORS);
1083  for (j = 0; j < run; j++)
1084  ublock[*scan++] = v;
1085  } else {
1086  for (j = 0; j < run; j++)
1087  ublock[*scan++] = get_value(c, BINK_SRC_COLORS);
1088  }
1089  } while (i < 63);
1090  if (i == 63)
1091  ublock[*scan++] = get_value(c, BINK_SRC_COLORS);
1092  break;
1093  case INTRA_BLOCK:
1094  memset(dctblock, 0, sizeof(*dctblock) * 64);
1095  dctblock[0] = get_value(c, BINK_SRC_INTRA_DC);
1096  if ((quant_idx = read_dct_coeffs(gb, dctblock, bink_scan, &coef_count, coef_idx, -1)) < 0)
1097  return quant_idx;
1098  unquantize_dct_coeffs(dctblock, bink_intra_quant[quant_idx], coef_count, coef_idx, bink_scan);
1099  c->binkdsp.idct_put(ublock, 8, dctblock);
1100  break;
1101  case FILL_BLOCK:
1102  v = get_value(c, BINK_SRC_COLORS);
1103  c->bdsp.fill_block_tab[0](dst, v, stride, 16);
1104  break;
1105  case PATTERN_BLOCK:
1106  for (i = 0; i < 2; i++)
1107  col[i] = get_value(c, BINK_SRC_COLORS);
1108  for (j = 0; j < 8; j++) {
1109  v = get_value(c, BINK_SRC_PATTERN);
1110  for (i = 0; i < 8; i++, v >>= 1)
1111  ublock[i + j*8] = col[v & 1];
1112  }
1113  break;
1114  case RAW_BLOCK:
1115  for (j = 0; j < 8; j++)
1116  for (i = 0; i < 8; i++)
1117  ublock[i + j*8] = get_value(c, BINK_SRC_COLORS);
1118  break;
1119  default:
1120  av_log(c->avctx, AV_LOG_ERROR, "Incorrect 16x16 block type %d\n", blk);
1121  return AVERROR_INVALIDDATA;
1122  }
1123  if (blk != FILL_BLOCK)
1124  c->binkdsp.scale_block(ublock, dst, stride);
1125  bx++;
1126  dst += 8;
1127  prev += 8;
1128  break;
1129  case MOTION_BLOCK:
1130  ret = bink_put_pixels(c, dst, prev, stride,
1131  ref_start, ref_end);
1132  if (ret < 0)
1133  return ret;
1134  break;
1135  case RUN_BLOCK:
1136  scan = bink_patterns[get_bits(gb, 4)];
1137  i = 0;
1138  do {
1139  int run = get_value(c, BINK_SRC_RUN) + 1;
1140 
1141  i += run;
1142  if (i > 64) {
1143  av_log(c->avctx, AV_LOG_ERROR, "Run went out of bounds\n");
1144  return AVERROR_INVALIDDATA;
1145  }
1146  if (get_bits1(gb)) {
1147  v = get_value(c, BINK_SRC_COLORS);
1148  for (j = 0; j < run; j++)
1149  dst[coordmap[*scan++]] = v;
1150  } else {
1151  for (j = 0; j < run; j++)
1152  dst[coordmap[*scan++]] = get_value(c, BINK_SRC_COLORS);
1153  }
1154  } while (i < 63);
1155  if (i == 63)
1156  dst[coordmap[*scan++]] = get_value(c, BINK_SRC_COLORS);
1157  break;
1158  case RESIDUE_BLOCK:
1159  ret = bink_put_pixels(c, dst, prev, stride,
1160  ref_start, ref_end);
1161  if (ret < 0)
1162  return ret;
1163  c->bdsp.clear_block(block);
1164  v = get_bits(gb, 7);
1165  read_residue(gb, block, v);
1166  c->binkdsp.add_pixels8(dst, block, stride);
1167  break;
1168  case INTRA_BLOCK:
1169  memset(dctblock, 0, sizeof(*dctblock) * 64);
1170  dctblock[0] = get_value(c, BINK_SRC_INTRA_DC);
1171  if ((quant_idx = read_dct_coeffs(gb, dctblock, bink_scan, &coef_count, coef_idx, -1)) < 0)
1172  return quant_idx;
1173  unquantize_dct_coeffs(dctblock, bink_intra_quant[quant_idx], coef_count, coef_idx, bink_scan);
1174  c->binkdsp.idct_put(dst, stride, dctblock);
1175  break;
1176  case FILL_BLOCK:
1177  v = get_value(c, BINK_SRC_COLORS);
1178  c->bdsp.fill_block_tab[1](dst, v, stride, 8);
1179  break;
1180  case INTER_BLOCK:
1181  ret = bink_put_pixels(c, dst, prev, stride,
1182  ref_start, ref_end);
1183  if (ret < 0)
1184  return ret;
1185  memset(dctblock, 0, sizeof(*dctblock) * 64);
1186  dctblock[0] = get_value(c, BINK_SRC_INTER_DC);
1187  if ((quant_idx = read_dct_coeffs(gb, dctblock, bink_scan, &coef_count, coef_idx, -1)) < 0)
1188  return quant_idx;
1189  unquantize_dct_coeffs(dctblock, bink_inter_quant[quant_idx], coef_count, coef_idx, bink_scan);
1190  c->binkdsp.idct_add(dst, stride, dctblock);
1191  break;
1192  case PATTERN_BLOCK:
1193  for (i = 0; i < 2; i++)
1194  col[i] = get_value(c, BINK_SRC_COLORS);
1195  for (i = 0; i < 8; i++) {
1196  v = get_value(c, BINK_SRC_PATTERN);
1197  for (j = 0; j < 8; j++, v >>= 1)
1198  dst[i*stride + j] = col[v & 1];
1199  }
1200  break;
1201  case RAW_BLOCK:
1202  for (i = 0; i < 8; i++)
1203  memcpy(dst + i*stride, c->bundle[BINK_SRC_COLORS].cur_ptr + i*8, 8);
1204  c->bundle[BINK_SRC_COLORS].cur_ptr += 64;
1205  break;
1206  default:
1207  av_log(c->avctx, AV_LOG_ERROR, "Unknown block type %d\n", blk);
1208  return AVERROR_INVALIDDATA;
1209  }
1210  }
1211  }
1212 
1213 end:
1214  if (get_bits_count(gb) & 0x1F) //next plane data starts at 32-bit boundary
1215  skip_bits_long(gb, 32 - (get_bits_count(gb) & 0x1F));
1216 
1217  return 0;
1218 }
1219 
1220 static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *pkt)
1221 {
1222  BinkContext * const c = avctx->priv_data;
1223  AVFrame *frame = data;
1224  GetBitContext gb;
1225  int plane, plane_idx, ret;
1226  int bits_count = pkt->size << 3;
1227 
1228  if (c->version > 'b') {
1229  if ((ret = ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF)) < 0)
1230  return ret;
1231  } else {
1232  if ((ret = ff_reget_buffer(avctx, c->last)) < 0)
1233  return ret;
1234  if ((ret = av_frame_ref(frame, c->last)) < 0)
1235  return ret;
1236  }
1237 
1238  init_get_bits(&gb, pkt->data, bits_count);
1239  if (c->has_alpha) {
1240  if (c->version >= 'i')
1241  skip_bits_long(&gb, 32);
1242  if ((ret = bink_decode_plane(c, frame, &gb, 3, 0)) < 0)
1243  return ret;
1244  }
1245  if (c->version >= 'i')
1246  skip_bits_long(&gb, 32);
1247 
1248  c->frame_num++;
1249 
1250  for (plane = 0; plane < 3; plane++) {
1251  plane_idx = (!plane || !c->swap_planes) ? plane : (plane ^ 3);
1252 
1253  if (c->version > 'b') {
1254  if ((ret = bink_decode_plane(c, frame, &gb, plane_idx, !!plane)) < 0)
1255  return ret;
1256  } else {
1257  if ((ret = binkb_decode_plane(c, frame, &gb, plane_idx,
1258  c->frame_num == 1, !!plane)) < 0)
1259  return ret;
1260  }
1261  if (get_bits_count(&gb) >= bits_count)
1262  break;
1263  }
1264  emms_c();
1265 
1266  if (c->version > 'b') {
1267  av_frame_unref(c->last);
1268  if ((ret = av_frame_ref(c->last, frame)) < 0)
1269  return ret;
1270  }
1271 
1272  *got_frame = 1;
1273 
1274  /* always report that the buffer was completely consumed */
1275  return pkt->size;
1276 }
1277 
1278 /**
1279  * Calculate quantization tables for version b
1280  */
1281 static av_cold void binkb_calc_quant(void)
1282 {
1283  uint8_t inv_bink_scan[64];
1284  static const int s[64]={
1285  1073741824,1489322693,1402911301,1262586814,1073741824, 843633538, 581104888, 296244703,
1286  1489322693,2065749918,1945893874,1751258219,1489322693,1170153332, 806015634, 410903207,
1287  1402911301,1945893874,1832991949,1649649171,1402911301,1102260336, 759250125, 387062357,
1288  1262586814,1751258219,1649649171,1484645031,1262586814, 992008094, 683307060, 348346918,
1289  1073741824,1489322693,1402911301,1262586814,1073741824, 843633538, 581104888, 296244703,
1290  843633538,1170153332,1102260336, 992008094, 843633538, 662838617, 456571181, 232757969,
1291  581104888, 806015634, 759250125, 683307060, 581104888, 456571181, 314491699, 160326478,
1292  296244703, 410903207, 387062357, 348346918, 296244703, 232757969, 160326478, 81733730,
1293  };
1294  int i, j;
1295 #define C (1LL<<30)
1296  for (i = 0; i < 64; i++)
1297  inv_bink_scan[bink_scan[i]] = i;
1298 
1299  for (j = 0; j < 16; j++) {
1300  for (i = 0; i < 64; i++) {
1301  int k = inv_bink_scan[i];
1302  binkb_intra_quant[j][k] = binkb_intra_seed[i] * (int64_t)s[i] *
1303  binkb_num[j]/(binkb_den[j] * (C>>12));
1304  binkb_inter_quant[j][k] = binkb_inter_seed[i] * (int64_t)s[i] *
1305  binkb_num[j]/(binkb_den[j] * (C>>12));
1306  }
1307  }
1308 }
1309 
1311 {
1312  BinkContext * const c = avctx->priv_data;
1313  static VLC_TYPE table[16 * 128][2];
1314  static int binkb_initialised = 0;
1315  int i, ret;
1316  int flags;
1317 
1318  c->version = avctx->codec_tag >> 24;
1319  if (avctx->extradata_size < 4) {
1320  av_log(avctx, AV_LOG_ERROR, "Extradata missing or too short\n");
1321  return AVERROR_INVALIDDATA;
1322  }
1323  flags = AV_RL32(avctx->extradata);
1324  c->has_alpha = flags & BINK_FLAG_ALPHA;
1325  c->swap_planes = c->version >= 'h';
1326  if (!bink_trees[15].table) {
1327  for (i = 0; i < 16; i++) {
1328  const int maxbits = bink_tree_lens[i][15];
1329  bink_trees[i].table = table + i*128;
1330  bink_trees[i].table_allocated = 1 << maxbits;
1331  init_vlc(&bink_trees[i], maxbits, 16,
1332  bink_tree_lens[i], 1, 1,
1334  }
1335  }
1336  c->avctx = avctx;
1337 
1338  c->last = av_frame_alloc();
1339  if (!c->last)
1340  return AVERROR(ENOMEM);
1341 
1342  if ((ret = av_image_check_size(avctx->width, avctx->height, 0, avctx)) < 0)
1343  return ret;
1344 
1346  avctx->color_range = c->version == 'k' ? AVCOL_RANGE_JPEG : AVCOL_RANGE_MPEG;
1347 
1348  ff_blockdsp_init(&c->bdsp, avctx);
1349  ff_hpeldsp_init(&c->hdsp, avctx->flags);
1350  ff_binkdsp_init(&c->binkdsp);
1351 
1352  if ((ret = init_bundles(c)) < 0) {
1353  free_bundles(c);
1354  return ret;
1355  }
1356 
1357  if (c->version == 'b') {
1358  if (!binkb_initialised) {
1359  binkb_calc_quant();
1360  binkb_initialised = 1;
1361  }
1362  }
1363 
1364  return 0;
1365 }
1366 
1368 {
1369  BinkContext * const c = avctx->priv_data;
1370 
1371  av_frame_free(&c->last);
1372 
1373  free_bundles(c);
1374  return 0;
1375 }
1376 
1377 static void flush(AVCodecContext *avctx)
1378 {
1379  BinkContext * const c = avctx->priv_data;
1380 
1381  c->frame_num = 0;
1382 }
1383 
1385  .name = "binkvideo",
1386  .long_name = NULL_IF_CONFIG_SMALL("Bink video"),
1387  .type = AVMEDIA_TYPE_VIDEO,
1388  .id = AV_CODEC_ID_BINKVIDEO,
1389  .priv_data_size = sizeof(BinkContext),
1390  .init = decode_init,
1391  .close = decode_end,
1392  .decode = decode_frame,
1393  .flush = flush,
1394  .capabilities = AV_CODEC_CAP_DR1,
1395 };
int plane
Definition: avisynth_c.h:422
#define NULL
Definition: coverity.c:32
const char const char void * val
Definition: avisynth_c.h:771
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:59
static const uint8_t bink_tree_lens[16][16]
Definition: binkdata.h:106
8-bit values for 2-colour pattern fill
Definition: bink.c:48
This structure describes decoded (raw) audio or video data.
Definition: frame.h:226
ptrdiff_t const GLvoid * data
Definition: opengl_enc.c:101
av_cold void ff_binkdsp_init(BinkDSPContext *c)
Definition: binkdsp.c:151
static const uint8_t bink_tree_bits[16][16]
Definition: binkdata.h:39
#define C
void(* clear_block)(int16_t *block)
Definition: blockdsp.h:36
#define CHECK_READ_VAL(gb, b, t)
common check before starting decoding bundle data
Definition: bink.c:307
misc image utilities
static unsigned int get_bits(GetBitContext *s, int n)
Read 1-25 bits.
Definition: get_bits.h:381
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
void(* scale_block)(const uint8_t src[64], uint8_t *dst, int linesize)
Definition: binkdsp.h:37
static void skip_bits_long(GetBitContext *s, int n)
Skips the specified number of bits.
Definition: get_bits.h:293
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:35
static const uint8_t binkb_den[16]
Definition: binkdata.h:651
enum AVColorRange color_range
MPEG vs JPEG YUV range.
Definition: avcodec.h:2171
static int read_residue(GetBitContext *gb, int16_t block[64], int masks_count)
Read 8x8 block with residue after motion compensation.
Definition: bink.c:725
int size
Definition: avcodec.h:1453
const char * b
Definition: vf_curves.c:116
av_cold void ff_blockdsp_init(BlockDSPContext *c, AVCodecContext *avctx)
Definition: blockdsp.c:60
int av_log2(unsigned v)
Definition: intmath.c:26
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:1750
8-bit values for 2-colour pattern fill
Definition: bink.c:78
static const uint8_t bink_scan[64]
Bink DCT and residue 8x8 block scan order.
Definition: binkdata.h:28
void(* add_pixels8)(uint8_t *av_restrict pixels, int16_t *block, int line_size)
Definition: binkdsp.h:38
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:236
uint8_t run
Definition: svq3.c:206
static AVPacket pkt
#define blk(i)
Definition: sha.c:185
8x8 block types
Definition: bink.c:75
#define src
Definition: vp8dsp.c:254
Tree col_high[16]
trees for decoding high nibble in "colours" data type
Definition: bink.c:126
AVCodec.
Definition: avcodec.h:3441
static void decode(AVCodecContext *dec_ctx, AVPacket *pkt, AVFrame *frame, FILE *outfile)
Definition: decode_audio.c:42
16x16 block types (a subset of 8x8 block types)
Definition: bink.c:76
int ff_reget_buffer(AVCodecContext *avctx, AVFrame *frame)
Identical in function to av_frame_make_writable(), except it uses ff_get_buffer() to allocate the buf...
Definition: decode.c:1965
int len
length of number of entries to decode (in bits)
Definition: bink.c:103
Macro definitions for various function/variable attributes.
HpelDSPContext hdsp
Definition: bink.c:117
static int32_t binkb_inter_quant[16][64]
Definition: bink.c:69
static int16_t block[64]
Definition: dct.c:115
quantizer values for interblocks with DCT
Definition: bink.c:54
static av_cold void binkb_init_bundle(BinkContext *c, int bundle_num)
Definition: bink.c:541
static int read_patterns(AVCodecContext *avctx, GetBitContext *gb, Bundle *b)
Definition: bink.c:415
X components of motion value.
Definition: bink.c:49
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:101
motion block with DCT applied to the difference
Definition: bink.c:141
uint8_t
#define av_cold
Definition: attributes.h:82
intra DCT block
Definition: bink.c:139
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
Definition: frame.c:189
static int binkb_get_value(BinkContext *c, int bundle_num)
Definition: bink.c:589
static void put_pixels8x8_overlapped(uint8_t *dst, uint8_t *src, int stride)
Copy 8x8 block from source to destination, where src and dst may be overlapped.
Definition: bink.c:810
Tree tree
Huffman tree-related data.
Definition: bink.c:104
BlockTypes
Bink video block types.
Definition: bink.c:133
static av_cold int end(AVCodecContext *avctx)
Definition: avrndec.c:90
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:443
uncoded 8x8 block
Definition: bink.c:143
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
Definition: avcodec.h:1641
#define u(width, name, range_min, range_max)
Definition: cbs_h2645.c:253
static void unquantize_dct_coeffs(int32_t block[64], const int32_t quant[64], int coef_count, int coef_idx[64], const uint8_t *scan)
Definition: bink.c:705
static AVFrame * frame
#define height
uint8_t * data
Definition: avcodec.h:1452
static const int32_t bink_inter_quant[16][64]
Definition: binkdata.h:451
static int get_bits_count(const GetBitContext *s)
Definition: get_bits.h:219
int vlc_num
tree number (in bink_trees[])
Definition: bink.c:92
skipped block
Definition: bink.c:134
bitstream reader API header.
static int read_runs(AVCodecContext *avctx, GetBitContext *gb, Bundle *b)
Definition: bink.c:316
ptrdiff_t size
Definition: opengl_enc.c:101
data structure used for decoding single Bink data type
Definition: bink.c:102
#define FFALIGN(x, a)
Definition: macros.h:48
static const uint8_t bink_patterns[16][64]
Definition: binkdata.h:125
#define av_log(a,...)
static const uint16_t table[]
Definition: prosumer.c:203
uint8_t * data
buffer for decoded symbols
Definition: bink.c:105
Bink DSP routines.
#define U(x)
Definition: vp56_arith.h:37
block is copied from previous frame with some offset
Definition: bink.c:136
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
uint8_t * data_end
buffer end
Definition: bink.c:106
static const uint16_t mask[17]
Definition: lzw.c:38
#define init_vlc(vlc, nb_bits, nb_codes,bits, bits_wrap, bits_size,codes, codes_wrap, codes_size,flags)
Definition: vlc.h:38
unsigned frame_num
Definition: bink.c:123
#define AVERROR(e)
Definition: error.h:43
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:202
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:186
AVCodecContext * avctx
Definition: bink.c:115
static av_cold void free_bundles(BinkContext *c)
Free memory used by bundles.
Definition: bink.c:202
int flags
AV_CODEC_FLAG_*.
Definition: avcodec.h:1620
AVCodec ff_bink_decoder
Definition: bink.c:1384
const char * name
Name of the codec implementation.
Definition: avcodec.h:3448
int col_lastval
value of last decoded high nibble in "colours" data type
Definition: bink.c:127
#define FFMAX(a, b)
Definition: common.h:94
BinkDSPContext binkdsp
Definition: bink.c:118
DC values for interblocks with DCT.
Definition: bink.c:82
Definition: vlc.h:26
av_cold void ff_hpeldsp_init(HpelDSPContext *c, int flags)
Definition: hpeldsp.c:338
block is composed from runs of colours with custom scan order
Definition: bink.c:137
common internal API header
block is filled with single colour
Definition: bink.c:140
static av_cold void binkb_calc_quant(void)
Calculate quantization tables for version b.
Definition: bink.c:1281
int av_image_check_size(unsigned int w, unsigned int h, int log_offset, void *log_ctx)
Check if the given dimension of an image is valid, meaning that all bytes of the image can be address...
Definition: imgutils.c:282
Half-pel DSP context.
Definition: hpeldsp.h:45
#define FFMIN(a, b)
Definition: common.h:96
#define width
int width
picture width / height.
Definition: avcodec.h:1713
static int binkb_decode_plane(BinkContext *c, AVFrame *frame, GetBitContext *gb, int plane_idx, int is_key, int is_chroma)
Definition: bink.c:820
Y components of motion value.
Definition: bink.c:50
number of coefficients for residue blocks
Definition: bink.c:55
int32_t
#define s(width, name)
Definition: cbs_vp9.c:257
int has_alpha
Definition: bink.c:121
block has size 16x16
Definition: bink.c:135
static const uint8_t binkb_inter_seed[64]
Definition: binkdata.h:636
the normal 2^n-1 "JPEG" YUV ranges
Definition: pixfmt.h:512
#define INIT_VLC_LE
Definition: vlc.h:54
int swap_planes
Definition: bink.c:122
static const uint8_t binkb_runbits[64]
Definition: binkdata.h:614
static int bink_decode_plane(BinkContext *c, AVFrame *frame, GetBitContext *gb, int plane_idx, int is_chroma)
Definition: bink.c:988
int table_allocated
Definition: vlc.h:29
data needed to decode 4-bit Huffman-coded value
Definition: bink.c:91
uint8_t * cur_dec
pointer to the not yet decoded part of the buffer
Definition: bink.c:107
Half-pel DSP functions.
Libavcodec external API header.
quantizer values for intrablocks with DCT
Definition: bink.c:53
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:257
#define DC_START_BITS
number of bits used to store first DC value in bundle
Definition: bink.c:474
main external API structure.
Definition: avcodec.h:1540
unsigned int codec_tag
fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
Definition: avcodec.h:1565
int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
Get a buffer for a frame.
Definition: decode.c:1918
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_log(ac->avr, AV_LOG_TRACE,"%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-> in
op_pixels_func put_pixels_tab[4][4]
Halfpel motion compensation with rounding (a+b+1)>>1.
Definition: hpeldsp.h:56
static av_cold int decode_init(AVCodecContext *avctx)
Definition: bink.c:1310
int extradata_size
Definition: avcodec.h:1642
static unsigned int get_bits1(GetBitContext *s)
Definition: get_bits.h:487
static const int32_t bink_intra_quant[16][64]
Definition: binkdata.h:288
DC values for interblocks with DCT.
Definition: bink.c:52
Sources
IDs for different data types used in Bink video codec.
Definition: bink.c:74
block is filled with two colours following custom pattern
Definition: bink.c:142
static av_cold void binkb_init_bundles(BinkContext *c)
Definition: bink.c:548
static int32_t binkb_intra_quant[16][64]
Definition: bink.c:68
static int init_get_bits(GetBitContext *s, const uint8_t *buffer, int bit_size)
Initialize GetBitContext.
Definition: get_bits.h:615
8x8 block types
Definition: bink.c:46
static const uint8_t binkb_num[16]
Definition: binkdata.h:647
#define GET_HUFF(gb, tree)
Definition: bink.c:96
run lengths for special fill block
Definition: bink.c:83
Y components of motion value.
Definition: bink.c:80
static VLC bink_trees[16]
Definition: bink.c:40
static void merge(GetBitContext *gb, uint8_t *dst, uint8_t *src, int size)
Merge two consequent lists of equal size depending on bits read.
Definition: bink.c:217
const uint8_t * quant
void av_frame_unref(AVFrame *frame)
Unreference all the buffers referenced by frame and reset the frame fields.
Definition: frame.c:553
Bundle bundle[BINKB_NB_SRC]
bundles for decoding all data types
Definition: bink.c:125
#define flags(name, subs,...)
Definition: cbs_av1.c:584
static void flush(AVCodecContext *avctx)
Definition: bink.c:1377
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:240
pixel values used for different block types
Definition: bink.c:77
AVFrame * last
Definition: bink.c:119
void(* idct_add)(uint8_t *dest, int line_size, int32_t *block)
Definition: binkdsp.h:36
the normal 219*2^(n-8) "MPEG" YUV ranges
Definition: pixfmt.h:511
X components of motion value.
Definition: bink.c:79
#define LOCAL_ALIGNED_32(t, v,...)
Definition: internal.h:137
uint8_t * cur_ptr
pointer to the data that is not read from buffer yet
Definition: bink.c:108
#define BINK_FLAG_ALPHA
Definition: bink.c:37
GLint GLenum GLboolean GLsizei stride
Definition: opengl_enc.c:105
static const uint8_t binkb_intra_seed[64]
Definition: binkdata.h:625
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
static int binkb_read_bundle(BinkContext *c, GetBitContext *gb, int bundle_num)
Definition: bink.c:555
common internal api header.
if(ret< 0)
Definition: vf_mcdeint.c:279
static int ref[MAX_W *MAX_W]
Definition: jpeg2000dwt.c:107
static void init_lengths(BinkContext *c, int width, int bw)
Initialize length in all bundles.
Definition: bink.c:153
static av_cold int init_bundles(BinkContext *c)
Allocate memory for bundles.
Definition: bink.c:178
static double c[64]
#define INIT_VLC_USE_NEW_STATIC
Definition: vlc.h:55
static int read_colors(GetBitContext *gb, Bundle *b, BinkContext *c)
Definition: bink.c:435
static int read_block_types(AVCodecContext *avctx, GetBitContext *gb, Bundle *b)
Definition: bink.c:372
static void read_tree(GetBitContext *gb, Tree *tree)
Read information about Huffman tree used to decode data.
Definition: bink.c:244
uint8_t syms[16]
leaf value to symbol mapping
Definition: bink.c:93
static int read_dcs(AVCodecContext *avctx, GetBitContext *gb, Bundle *b, int start_bits, int has_sign)
Definition: bink.c:476
static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *pkt)
Definition: bink.c:1220
DC values for intrablocks with DCT.
Definition: bink.c:51
void * priv_data
Definition: avcodec.h:1567
static int read_motion_values(AVCodecContext *avctx, GetBitContext *gb, Bundle *b)
Definition: bink.c:338
motion block with some difference added
Definition: bink.c:138
int len
VLC_TYPE(* table)[2]
code, bits
Definition: vlc.h:28
void(* idct_put)(uint8_t *dest, int line_size, int32_t *block)
Definition: binkdsp.h:35
static int bink_put_pixels(BinkContext *c, uint8_t *dst, uint8_t *prev, int stride, uint8_t *ref_start, uint8_t *ref_end)
Definition: bink.c:970
static const int binkb_bundle_sizes[BINKB_NB_SRC]
Definition: bink.c:60
int version
internal Bink file version
Definition: bink.c:120
static const int binkb_bundle_signed[BINKB_NB_SRC]
Definition: bink.c:64
static av_cold int decode_end(AVCodecContext *avctx)
Definition: bink.c:1367
FILE * out
Definition: movenc.c:54
BlockDSPContext bdsp
Definition: bink.c:116
#define LOCAL_ALIGNED_16(t, v,...)
Definition: internal.h:131
#define av_freep(p)
static int read_dct_coeffs(GetBitContext *gb, int32_t block[64], const uint8_t *scan, int *coef_count_, int coef_idx[64], int q)
Read 8x8 block of DCT coefficients.
Definition: bink.c:612
#define VLC_TYPE
Definition: vlc.h:24
#define FFSWAP(type, a, b)
Definition: common.h:99
static void read_bundle(GetBitContext *gb, BinkContext *c, int bundle_num)
Prepare bundle for decoding data.
Definition: bink.c:285
static const uint8_t bink_rlelens[4]
Definition: bink.c:370
#define stride
pixel values used for different block types
Definition: bink.c:47
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_RL32
Definition: bytestream.h:87
static int get_value(BinkContext *c, int bundle)
Retrieve next value from bundle.
Definition: bink.c:528
This structure stores compressed data.
Definition: avcodec.h:1429
#define AV_GET_BUFFER_FLAG_REF
The decoder will keep a reference to the frame and may reuse it later.
Definition: avcodec.h:1151
mode
Use these values in ebur128_init (or'ed).
Definition: ebur128.h:83
DC values for intrablocks with DCT.
Definition: bink.c:81
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
Definition: avcodec.h:968
OldSources
IDs for different data types used in old version of Bink video codec.
Definition: bink.c:45
op_fill_func fill_block_tab[2]
Definition: blockdsp.h:39
static uint8_t tmp[11]
Definition: aes_ctr.c:26