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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  int t, v;
375  int last = 0;
376  const uint8_t *dec_end;
377 
378  CHECK_READ_VAL(gb, b, t);
379  dec_end = b->cur_dec + t;
380  if (dec_end > b->data_end) {
381  av_log(avctx, AV_LOG_ERROR, "Too many block type values\n");
382  return AVERROR_INVALIDDATA;
383  }
384  if (get_bits1(gb)) {
385  v = get_bits(gb, 4);
386  memset(b->cur_dec, v, t);
387  b->cur_dec += t;
388  } else {
389  while (b->cur_dec < dec_end) {
390  v = GET_HUFF(gb, b->tree);
391  if (v < 12) {
392  last = v;
393  *b->cur_dec++ = v;
394  } else {
395  int run = bink_rlelens[v - 12];
396 
397  if (dec_end - b->cur_dec < run)
398  return AVERROR_INVALIDDATA;
399  memset(b->cur_dec, last, run);
400  b->cur_dec += run;
401  }
402  }
403  }
404  return 0;
405 }
406 
408 {
409  int t, v;
410  const uint8_t *dec_end;
411 
412  CHECK_READ_VAL(gb, b, t);
413  dec_end = b->cur_dec + t;
414  if (dec_end > b->data_end) {
415  av_log(avctx, AV_LOG_ERROR, "Too many pattern values\n");
416  return AVERROR_INVALIDDATA;
417  }
418  while (b->cur_dec < dec_end) {
419  v = GET_HUFF(gb, b->tree);
420  v |= GET_HUFF(gb, b->tree) << 4;
421  *b->cur_dec++ = v;
422  }
423 
424  return 0;
425 }
426 
428 {
429  int t, sign, v;
430  const uint8_t *dec_end;
431 
432  CHECK_READ_VAL(gb, b, t);
433  dec_end = b->cur_dec + t;
434  if (dec_end > b->data_end) {
435  av_log(c->avctx, AV_LOG_ERROR, "Too many color values\n");
436  return AVERROR_INVALIDDATA;
437  }
438  if (get_bits1(gb)) {
439  c->col_lastval = GET_HUFF(gb, c->col_high[c->col_lastval]);
440  v = GET_HUFF(gb, b->tree);
441  v = (c->col_lastval << 4) | v;
442  if (c->version < 'i') {
443  sign = ((int8_t) v) >> 7;
444  v = ((v & 0x7F) ^ sign) - sign;
445  v += 0x80;
446  }
447  memset(b->cur_dec, v, t);
448  b->cur_dec += t;
449  } else {
450  while (b->cur_dec < dec_end) {
451  c->col_lastval = GET_HUFF(gb, c->col_high[c->col_lastval]);
452  v = GET_HUFF(gb, b->tree);
453  v = (c->col_lastval << 4) | v;
454  if (c->version < 'i') {
455  sign = ((int8_t) v) >> 7;
456  v = ((v & 0x7F) ^ sign) - sign;
457  v += 0x80;
458  }
459  *b->cur_dec++ = v;
460  }
461  }
462  return 0;
463 }
464 
465 /** number of bits used to store first DC value in bundle */
466 #define DC_START_BITS 11
467 
468 static int read_dcs(AVCodecContext *avctx, GetBitContext *gb, Bundle *b,
469  int start_bits, int has_sign)
470 {
471  int i, j, len, len2, bsize, sign, v, v2;
472  int16_t *dst = (int16_t*)b->cur_dec;
473  int16_t *dst_end = (int16_t*)b->data_end;
474 
475  CHECK_READ_VAL(gb, b, len);
476  v = get_bits(gb, start_bits - has_sign);
477  if (v && has_sign) {
478  sign = -get_bits1(gb);
479  v = (v ^ sign) - sign;
480  }
481  if (dst_end - dst < 1)
482  return AVERROR_INVALIDDATA;
483  *dst++ = v;
484  len--;
485  for (i = 0; i < len; i += 8) {
486  len2 = FFMIN(len - i, 8);
487  if (dst_end - dst < len2)
488  return AVERROR_INVALIDDATA;
489  bsize = get_bits(gb, 4);
490  if (bsize) {
491  for (j = 0; j < len2; j++) {
492  v2 = get_bits(gb, bsize);
493  if (v2) {
494  sign = -get_bits1(gb);
495  v2 = (v2 ^ sign) - sign;
496  }
497  v += v2;
498  *dst++ = v;
499  if (v < -32768 || v > 32767) {
500  av_log(avctx, AV_LOG_ERROR, "DC value went out of bounds: %d\n", v);
501  return AVERROR_INVALIDDATA;
502  }
503  }
504  } else {
505  for (j = 0; j < len2; j++)
506  *dst++ = v;
507  }
508  }
509 
510  b->cur_dec = (uint8_t*)dst;
511  return 0;
512 }
513 
514 /**
515  * Retrieve next value from bundle.
516  *
517  * @param c decoder context
518  * @param bundle bundle number
519  */
520 static inline int get_value(BinkContext *c, int bundle)
521 {
522  int ret;
523 
524  if (bundle < BINK_SRC_X_OFF || bundle == BINK_SRC_RUN)
525  return *c->bundle[bundle].cur_ptr++;
526  if (bundle == BINK_SRC_X_OFF || bundle == BINK_SRC_Y_OFF)
527  return (int8_t)*c->bundle[bundle].cur_ptr++;
528  ret = *(int16_t*)c->bundle[bundle].cur_ptr;
529  c->bundle[bundle].cur_ptr += 2;
530  return ret;
531 }
532 
533 static av_cold void binkb_init_bundle(BinkContext *c, int bundle_num)
534 {
535  c->bundle[bundle_num].cur_dec =
536  c->bundle[bundle_num].cur_ptr = c->bundle[bundle_num].data;
537  c->bundle[bundle_num].len = 13;
538 }
539 
541 {
542  int i;
543  for (i = 0; i < BINKB_NB_SRC; i++)
544  binkb_init_bundle(c, i);
545 }
546 
547 static int binkb_read_bundle(BinkContext *c, GetBitContext *gb, int bundle_num)
548 {
549  const int bits = binkb_bundle_sizes[bundle_num];
550  const int mask = 1 << (bits - 1);
551  const int issigned = binkb_bundle_signed[bundle_num];
552  Bundle *b = &c->bundle[bundle_num];
553  int i, len;
554 
555  CHECK_READ_VAL(gb, b, len);
556  if (b->data_end - b->cur_dec < len * (1 + (bits > 8)))
557  return AVERROR_INVALIDDATA;
558  if (bits <= 8) {
559  if (!issigned) {
560  for (i = 0; i < len; i++)
561  *b->cur_dec++ = get_bits(gb, bits);
562  } else {
563  for (i = 0; i < len; i++)
564  *b->cur_dec++ = get_bits(gb, bits) - mask;
565  }
566  } else {
567  int16_t *dst = (int16_t*)b->cur_dec;
568 
569  if (!issigned) {
570  for (i = 0; i < len; i++)
571  *dst++ = get_bits(gb, bits);
572  } else {
573  for (i = 0; i < len; i++)
574  *dst++ = get_bits(gb, bits) - mask;
575  }
576  b->cur_dec = (uint8_t*)dst;
577  }
578  return 0;
579 }
580 
581 static inline int binkb_get_value(BinkContext *c, int bundle_num)
582 {
583  int16_t ret;
584  const int bits = binkb_bundle_sizes[bundle_num];
585 
586  if (bits <= 8) {
587  int val = *c->bundle[bundle_num].cur_ptr++;
588  return binkb_bundle_signed[bundle_num] ? (int8_t)val : val;
589  }
590  ret = *(int16_t*)c->bundle[bundle_num].cur_ptr;
591  c->bundle[bundle_num].cur_ptr += 2;
592  return ret;
593 }
594 
595 /**
596  * Read 8x8 block of DCT coefficients.
597  *
598  * @param gb context for reading bits
599  * @param block place for storing coefficients
600  * @param scan scan order table
601  * @param quant_matrices quantization matrices
602  * @return 0 for success, negative value in other cases
603  */
605  const uint8_t *scan, int *coef_count_,
606  int coef_idx[64], int q)
607 {
608  int coef_list[128];
609  int mode_list[128];
610  int i, t, bits, ccoef, mode, sign;
611  int list_start = 64, list_end = 64, list_pos;
612  int coef_count = 0;
613  int quant_idx;
614 
615  coef_list[list_end] = 4; mode_list[list_end++] = 0;
616  coef_list[list_end] = 24; mode_list[list_end++] = 0;
617  coef_list[list_end] = 44; mode_list[list_end++] = 0;
618  coef_list[list_end] = 1; mode_list[list_end++] = 3;
619  coef_list[list_end] = 2; mode_list[list_end++] = 3;
620  coef_list[list_end] = 3; mode_list[list_end++] = 3;
621 
622  for (bits = get_bits(gb, 4) - 1; bits >= 0; bits--) {
623  list_pos = list_start;
624  while (list_pos < list_end) {
625  if (!(mode_list[list_pos] | coef_list[list_pos]) || !get_bits1(gb)) {
626  list_pos++;
627  continue;
628  }
629  ccoef = coef_list[list_pos];
630  mode = mode_list[list_pos];
631  switch (mode) {
632  case 0:
633  coef_list[list_pos] = ccoef + 4;
634  mode_list[list_pos] = 1;
635  case 2:
636  if (mode == 2) {
637  coef_list[list_pos] = 0;
638  mode_list[list_pos++] = 0;
639  }
640  for (i = 0; i < 4; i++, ccoef++) {
641  if (get_bits1(gb)) {
642  coef_list[--list_start] = ccoef;
643  mode_list[ list_start] = 3;
644  } else {
645  if (!bits) {
646  t = 1 - (get_bits1(gb) << 1);
647  } else {
648  t = get_bits(gb, bits) | 1 << bits;
649  sign = -get_bits1(gb);
650  t = (t ^ sign) - sign;
651  }
652  block[scan[ccoef]] = t;
653  coef_idx[coef_count++] = ccoef;
654  }
655  }
656  break;
657  case 1:
658  mode_list[list_pos] = 2;
659  for (i = 0; i < 3; i++) {
660  ccoef += 4;
661  coef_list[list_end] = ccoef;
662  mode_list[list_end++] = 2;
663  }
664  break;
665  case 3:
666  if (!bits) {
667  t = 1 - (get_bits1(gb) << 1);
668  } else {
669  t = get_bits(gb, bits) | 1 << bits;
670  sign = -get_bits1(gb);
671  t = (t ^ sign) - sign;
672  }
673  block[scan[ccoef]] = t;
674  coef_idx[coef_count++] = ccoef;
675  coef_list[list_pos] = 0;
676  mode_list[list_pos++] = 0;
677  break;
678  }
679  }
680  }
681 
682  if (q == -1) {
683  quant_idx = get_bits(gb, 4);
684  } else {
685  quant_idx = q;
686  if (quant_idx > 15U) {
687  av_log(NULL, AV_LOG_ERROR, "quant_index %d out of range\n", quant_idx);
688  return AVERROR_INVALIDDATA;
689  }
690  }
691 
692  *coef_count_ = coef_count;
693 
694  return quant_idx;
695 }
696 
697 static void unquantize_dct_coeffs(int32_t block[64], const int32_t quant[64],
698  int coef_count, int coef_idx[64],
699  const uint8_t *scan)
700 {
701  int i;
702  block[0] = (block[0] * quant[0]) >> 11;
703  for (i = 0; i < coef_count; i++) {
704  int idx = coef_idx[i];
705  block[scan[idx]] = (block[scan[idx]] * quant[idx]) >> 11;
706  }
707 }
708 
709 /**
710  * Read 8x8 block with residue after motion compensation.
711  *
712  * @param gb context for reading bits
713  * @param block place to store read data
714  * @param masks_count number of masks to decode
715  * @return 0 on success, negative value in other cases
716  */
717 static int read_residue(GetBitContext *gb, int16_t block[64], int masks_count)
718 {
719  int coef_list[128];
720  int mode_list[128];
721  int i, sign, mask, ccoef, mode;
722  int list_start = 64, list_end = 64, list_pos;
723  int nz_coeff[64];
724  int nz_coeff_count = 0;
725 
726  coef_list[list_end] = 4; mode_list[list_end++] = 0;
727  coef_list[list_end] = 24; mode_list[list_end++] = 0;
728  coef_list[list_end] = 44; mode_list[list_end++] = 0;
729  coef_list[list_end] = 0; mode_list[list_end++] = 2;
730 
731  for (mask = 1 << get_bits(gb, 3); mask; mask >>= 1) {
732  for (i = 0; i < nz_coeff_count; i++) {
733  if (!get_bits1(gb))
734  continue;
735  if (block[nz_coeff[i]] < 0)
736  block[nz_coeff[i]] -= mask;
737  else
738  block[nz_coeff[i]] += mask;
739  masks_count--;
740  if (masks_count < 0)
741  return 0;
742  }
743  list_pos = list_start;
744  while (list_pos < list_end) {
745  if (!(coef_list[list_pos] | mode_list[list_pos]) || !get_bits1(gb)) {
746  list_pos++;
747  continue;
748  }
749  ccoef = coef_list[list_pos];
750  mode = mode_list[list_pos];
751  switch (mode) {
752  case 0:
753  coef_list[list_pos] = ccoef + 4;
754  mode_list[list_pos] = 1;
755  case 2:
756  if (mode == 2) {
757  coef_list[list_pos] = 0;
758  mode_list[list_pos++] = 0;
759  }
760  for (i = 0; i < 4; i++, ccoef++) {
761  if (get_bits1(gb)) {
762  coef_list[--list_start] = ccoef;
763  mode_list[ list_start] = 3;
764  } else {
765  nz_coeff[nz_coeff_count++] = bink_scan[ccoef];
766  sign = -get_bits1(gb);
767  block[bink_scan[ccoef]] = (mask ^ sign) - sign;
768  masks_count--;
769  if (masks_count < 0)
770  return 0;
771  }
772  }
773  break;
774  case 1:
775  mode_list[list_pos] = 2;
776  for (i = 0; i < 3; i++) {
777  ccoef += 4;
778  coef_list[list_end] = ccoef;
779  mode_list[list_end++] = 2;
780  }
781  break;
782  case 3:
783  nz_coeff[nz_coeff_count++] = bink_scan[ccoef];
784  sign = -get_bits1(gb);
785  block[bink_scan[ccoef]] = (mask ^ sign) - sign;
786  coef_list[list_pos] = 0;
787  mode_list[list_pos++] = 0;
788  masks_count--;
789  if (masks_count < 0)
790  return 0;
791  break;
792  }
793  }
794  }
795 
796  return 0;
797 }
798 
799 /**
800  * Copy 8x8 block from source to destination, where src and dst may be overlapped
801  */
802 static inline void put_pixels8x8_overlapped(uint8_t *dst, uint8_t *src, int stride)
803 {
804  uint8_t tmp[64];
805  int i;
806  for (i = 0; i < 8; i++)
807  memcpy(tmp + i*8, src + i*stride, 8);
808  for (i = 0; i < 8; i++)
809  memcpy(dst + i*stride, tmp + i*8, 8);
810 }
811 
813  int plane_idx, int is_key, int is_chroma)
814 {
815  int blk, ret;
816  int i, j, bx, by;
817  uint8_t *dst, *ref, *ref_start, *ref_end;
818  int v, col[2];
819  const uint8_t *scan;
820  int xoff, yoff;
821  LOCAL_ALIGNED_32(int16_t, block, [64]);
822  LOCAL_ALIGNED_16(int32_t, dctblock, [64]);
823  int coordmap[64];
824  int ybias = is_key ? -15 : 0;
825  int qp, quant_idx, coef_count, coef_idx[64];
826 
827  const int stride = frame->linesize[plane_idx];
828  int bw = is_chroma ? (c->avctx->width + 15) >> 4 : (c->avctx->width + 7) >> 3;
829  int bh = is_chroma ? (c->avctx->height + 15) >> 4 : (c->avctx->height + 7) >> 3;
830 
832  ref_start = frame->data[plane_idx];
833  ref_end = frame->data[plane_idx] + (bh * frame->linesize[plane_idx] + bw) * 8;
834 
835  for (i = 0; i < 64; i++)
836  coordmap[i] = (i & 7) + (i >> 3) * stride;
837 
838  for (by = 0; by < bh; by++) {
839  for (i = 0; i < BINKB_NB_SRC; i++) {
840  if ((ret = binkb_read_bundle(c, gb, i)) < 0)
841  return ret;
842  }
843 
844  dst = frame->data[plane_idx] + 8*by*stride;
845  for (bx = 0; bx < bw; bx++, dst += 8) {
847  switch (blk) {
848  case 0:
849  break;
850  case 1:
851  scan = bink_patterns[get_bits(gb, 4)];
852  i = 0;
853  do {
854  int mode, run;
855 
856  mode = get_bits1(gb);
857  run = get_bits(gb, binkb_runbits[i]) + 1;
858 
859  i += run;
860  if (i > 64) {
861  av_log(c->avctx, AV_LOG_ERROR, "Run went out of bounds\n");
862  return AVERROR_INVALIDDATA;
863  }
864  if (mode) {
866  for (j = 0; j < run; j++)
867  dst[coordmap[*scan++]] = v;
868  } else {
869  for (j = 0; j < run; j++)
870  dst[coordmap[*scan++]] = binkb_get_value(c, BINKB_SRC_COLORS);
871  }
872  } while (i < 63);
873  if (i == 63)
874  dst[coordmap[*scan++]] = binkb_get_value(c, BINKB_SRC_COLORS);
875  break;
876  case 2:
877  memset(dctblock, 0, sizeof(*dctblock) * 64);
878  dctblock[0] = binkb_get_value(c, BINKB_SRC_INTRA_DC);
880  if ((quant_idx = read_dct_coeffs(gb, dctblock, bink_scan, &coef_count, coef_idx, qp)) < 0)
881  return quant_idx;
882  unquantize_dct_coeffs(dctblock, binkb_intra_quant[quant_idx], coef_count, coef_idx, bink_scan);
883  c->binkdsp.idct_put(dst, stride, dctblock);
884  break;
885  case 3:
886  xoff = binkb_get_value(c, BINKB_SRC_X_OFF);
887  yoff = binkb_get_value(c, BINKB_SRC_Y_OFF) + ybias;
888  ref = dst + xoff + yoff * stride;
889  if (ref < ref_start || ref + 8*stride > ref_end) {
890  av_log(c->avctx, AV_LOG_WARNING, "Reference block is out of bounds\n");
891  } else if (ref + 8*stride < dst || ref >= dst + 8*stride) {
892  c->hdsp.put_pixels_tab[1][0](dst, ref, stride, 8);
893  } else {
894  put_pixels8x8_overlapped(dst, ref, stride);
895  }
896  c->bdsp.clear_block(block);
898  read_residue(gb, block, v);
899  c->binkdsp.add_pixels8(dst, block, stride);
900  break;
901  case 4:
902  xoff = binkb_get_value(c, BINKB_SRC_X_OFF);
903  yoff = binkb_get_value(c, BINKB_SRC_Y_OFF) + ybias;
904  ref = dst + xoff + yoff * stride;
905  if (ref < ref_start || ref + 8 * stride > ref_end) {
906  av_log(c->avctx, AV_LOG_WARNING, "Reference block is out of bounds\n");
907  } else if (ref + 8*stride < dst || ref >= dst + 8*stride) {
908  c->hdsp.put_pixels_tab[1][0](dst, ref, stride, 8);
909  } else {
910  put_pixels8x8_overlapped(dst, ref, stride);
911  }
912  memset(dctblock, 0, sizeof(*dctblock) * 64);
913  dctblock[0] = binkb_get_value(c, BINKB_SRC_INTER_DC);
915  if ((quant_idx = read_dct_coeffs(gb, dctblock, bink_scan, &coef_count, coef_idx, qp)) < 0)
916  return quant_idx;
917  unquantize_dct_coeffs(dctblock, binkb_inter_quant[quant_idx], coef_count, coef_idx, bink_scan);
918  c->binkdsp.idct_add(dst, stride, dctblock);
919  break;
920  case 5:
922  c->bdsp.fill_block_tab[1](dst, v, stride, 8);
923  break;
924  case 6:
925  for (i = 0; i < 2; i++)
926  col[i] = binkb_get_value(c, BINKB_SRC_COLORS);
927  for (i = 0; i < 8; i++) {
929  for (j = 0; j < 8; j++, v >>= 1)
930  dst[i*stride + j] = col[v & 1];
931  }
932  break;
933  case 7:
934  xoff = binkb_get_value(c, BINKB_SRC_X_OFF);
935  yoff = binkb_get_value(c, BINKB_SRC_Y_OFF) + ybias;
936  ref = dst + xoff + yoff * stride;
937  if (ref < ref_start || ref + 8 * stride > ref_end) {
938  av_log(c->avctx, AV_LOG_WARNING, "Reference block is out of bounds\n");
939  } else if (ref + 8*stride < dst || ref >= dst + 8*stride) {
940  c->hdsp.put_pixels_tab[1][0](dst, ref, stride, 8);
941  } else {
942  put_pixels8x8_overlapped(dst, ref, stride);
943  }
944  break;
945  case 8:
946  for (i = 0; i < 8; i++)
947  memcpy(dst + i*stride, c->bundle[BINKB_SRC_COLORS].cur_ptr + i*8, 8);
948  c->bundle[BINKB_SRC_COLORS].cur_ptr += 64;
949  break;
950  default:
951  av_log(c->avctx, AV_LOG_ERROR, "Unknown block type %d\n", blk);
952  return AVERROR_INVALIDDATA;
953  }
954  }
955  }
956  if (get_bits_count(gb) & 0x1F) //next plane data starts at 32-bit boundary
957  skip_bits_long(gb, 32 - (get_bits_count(gb) & 0x1F));
958 
959  return 0;
960 }
961 
963  uint8_t *dst, uint8_t *prev, int stride,
964  uint8_t *ref_start,
965  uint8_t *ref_end)
966 {
967  int xoff = get_value(c, BINK_SRC_X_OFF);
968  int yoff = get_value(c, BINK_SRC_Y_OFF);
969  uint8_t *ref = prev + xoff + yoff * stride;
970  if (ref < ref_start || ref > ref_end) {
971  av_log(c->avctx, AV_LOG_ERROR, "Copy out of bounds @%d, %d\n",
972  xoff, yoff);
973  return AVERROR_INVALIDDATA;
974  }
975  c->hdsp.put_pixels_tab[1][0](dst, ref, stride, 8);
976 
977  return 0;
978 }
979 
981  int plane_idx, int is_chroma)
982 {
983  int blk, ret;
984  int i, j, bx, by;
985  uint8_t *dst, *prev, *ref_start, *ref_end;
986  int v, col[2];
987  const uint8_t *scan;
988  LOCAL_ALIGNED_32(int16_t, block, [64]);
989  LOCAL_ALIGNED_16(uint8_t, ublock, [64]);
990  LOCAL_ALIGNED_16(int32_t, dctblock, [64]);
991  int coordmap[64], quant_idx, coef_count, coef_idx[64];
992 
993  const int stride = frame->linesize[plane_idx];
994  int bw = is_chroma ? (c->avctx->width + 15) >> 4 : (c->avctx->width + 7) >> 3;
995  int bh = is_chroma ? (c->avctx->height + 15) >> 4 : (c->avctx->height + 7) >> 3;
996  int width = c->avctx->width >> is_chroma;
997 
998  init_lengths(c, FFMAX(width, 8), bw);
999  for (i = 0; i < BINK_NB_SRC; i++)
1000  read_bundle(gb, c, i);
1001 
1002  ref_start = c->last->data[plane_idx] ? c->last->data[plane_idx]
1003  : frame->data[plane_idx];
1004  ref_end = ref_start
1005  + (bw - 1 + c->last->linesize[plane_idx] * (bh - 1)) * 8;
1006 
1007  for (i = 0; i < 64; i++)
1008  coordmap[i] = (i & 7) + (i >> 3) * stride;
1009 
1010  for (by = 0; by < bh; by++) {
1011  if ((ret = read_block_types(c->avctx, gb, &c->bundle[BINK_SRC_BLOCK_TYPES])) < 0)
1012  return ret;
1013  if ((ret = read_block_types(c->avctx, gb, &c->bundle[BINK_SRC_SUB_BLOCK_TYPES])) < 0)
1014  return ret;
1015  if ((ret = read_colors(gb, &c->bundle[BINK_SRC_COLORS], c)) < 0)
1016  return ret;
1017  if ((ret = read_patterns(c->avctx, gb, &c->bundle[BINK_SRC_PATTERN])) < 0)
1018  return ret;
1019  if ((ret = read_motion_values(c->avctx, gb, &c->bundle[BINK_SRC_X_OFF])) < 0)
1020  return ret;
1021  if ((ret = read_motion_values(c->avctx, gb, &c->bundle[BINK_SRC_Y_OFF])) < 0)
1022  return ret;
1023  if ((ret = read_dcs(c->avctx, gb, &c->bundle[BINK_SRC_INTRA_DC], DC_START_BITS, 0)) < 0)
1024  return ret;
1025  if ((ret = read_dcs(c->avctx, gb, &c->bundle[BINK_SRC_INTER_DC], DC_START_BITS, 1)) < 0)
1026  return ret;
1027  if ((ret = read_runs(c->avctx, gb, &c->bundle[BINK_SRC_RUN])) < 0)
1028  return ret;
1029 
1030  if (by == bh)
1031  break;
1032  dst = frame->data[plane_idx] + 8*by*stride;
1033  prev = (c->last->data[plane_idx] ? c->last->data[plane_idx]
1034  : frame->data[plane_idx]) + 8*by*stride;
1035  for (bx = 0; bx < bw; bx++, dst += 8, prev += 8) {
1036  blk = get_value(c, BINK_SRC_BLOCK_TYPES);
1037  // 16x16 block type on odd line means part of the already decoded block, so skip it
1038  if ((by & 1) && blk == SCALED_BLOCK) {
1039  bx++;
1040  dst += 8;
1041  prev += 8;
1042  continue;
1043  }
1044  switch (blk) {
1045  case SKIP_BLOCK:
1046  c->hdsp.put_pixels_tab[1][0](dst, prev, stride, 8);
1047  break;
1048  case SCALED_BLOCK:
1050  switch (blk) {
1051  case RUN_BLOCK:
1052  scan = bink_patterns[get_bits(gb, 4)];
1053  i = 0;
1054  do {
1055  int run = get_value(c, BINK_SRC_RUN) + 1;
1056 
1057  i += run;
1058  if (i > 64) {
1059  av_log(c->avctx, AV_LOG_ERROR, "Run went out of bounds\n");
1060  return AVERROR_INVALIDDATA;
1061  }
1062  if (get_bits1(gb)) {
1063  v = get_value(c, BINK_SRC_COLORS);
1064  for (j = 0; j < run; j++)
1065  ublock[*scan++] = v;
1066  } else {
1067  for (j = 0; j < run; j++)
1068  ublock[*scan++] = get_value(c, BINK_SRC_COLORS);
1069  }
1070  } while (i < 63);
1071  if (i == 63)
1072  ublock[*scan++] = get_value(c, BINK_SRC_COLORS);
1073  break;
1074  case INTRA_BLOCK:
1075  memset(dctblock, 0, sizeof(*dctblock) * 64);
1076  dctblock[0] = get_value(c, BINK_SRC_INTRA_DC);
1077  if ((quant_idx = read_dct_coeffs(gb, dctblock, bink_scan, &coef_count, coef_idx, -1)) < 0)
1078  return quant_idx;
1079  unquantize_dct_coeffs(dctblock, bink_intra_quant[quant_idx], coef_count, coef_idx, bink_scan);
1080  c->binkdsp.idct_put(ublock, 8, dctblock);
1081  break;
1082  case FILL_BLOCK:
1083  v = get_value(c, BINK_SRC_COLORS);
1084  c->bdsp.fill_block_tab[0](dst, v, stride, 16);
1085  break;
1086  case PATTERN_BLOCK:
1087  for (i = 0; i < 2; i++)
1088  col[i] = get_value(c, BINK_SRC_COLORS);
1089  for (j = 0; j < 8; j++) {
1090  v = get_value(c, BINK_SRC_PATTERN);
1091  for (i = 0; i < 8; i++, v >>= 1)
1092  ublock[i + j*8] = col[v & 1];
1093  }
1094  break;
1095  case RAW_BLOCK:
1096  for (j = 0; j < 8; j++)
1097  for (i = 0; i < 8; i++)
1098  ublock[i + j*8] = get_value(c, BINK_SRC_COLORS);
1099  break;
1100  default:
1101  av_log(c->avctx, AV_LOG_ERROR, "Incorrect 16x16 block type %d\n", blk);
1102  return AVERROR_INVALIDDATA;
1103  }
1104  if (blk != FILL_BLOCK)
1105  c->binkdsp.scale_block(ublock, dst, stride);
1106  bx++;
1107  dst += 8;
1108  prev += 8;
1109  break;
1110  case MOTION_BLOCK:
1111  ret = bink_put_pixels(c, dst, prev, stride,
1112  ref_start, ref_end);
1113  if (ret < 0)
1114  return ret;
1115  break;
1116  case RUN_BLOCK:
1117  scan = bink_patterns[get_bits(gb, 4)];
1118  i = 0;
1119  do {
1120  int run = get_value(c, BINK_SRC_RUN) + 1;
1121 
1122  i += run;
1123  if (i > 64) {
1124  av_log(c->avctx, AV_LOG_ERROR, "Run went out of bounds\n");
1125  return AVERROR_INVALIDDATA;
1126  }
1127  if (get_bits1(gb)) {
1128  v = get_value(c, BINK_SRC_COLORS);
1129  for (j = 0; j < run; j++)
1130  dst[coordmap[*scan++]] = v;
1131  } else {
1132  for (j = 0; j < run; j++)
1133  dst[coordmap[*scan++]] = get_value(c, BINK_SRC_COLORS);
1134  }
1135  } while (i < 63);
1136  if (i == 63)
1137  dst[coordmap[*scan++]] = get_value(c, BINK_SRC_COLORS);
1138  break;
1139  case RESIDUE_BLOCK:
1140  ret = bink_put_pixels(c, dst, prev, stride,
1141  ref_start, ref_end);
1142  if (ret < 0)
1143  return ret;
1144  c->bdsp.clear_block(block);
1145  v = get_bits(gb, 7);
1146  read_residue(gb, block, v);
1147  c->binkdsp.add_pixels8(dst, block, stride);
1148  break;
1149  case INTRA_BLOCK:
1150  memset(dctblock, 0, sizeof(*dctblock) * 64);
1151  dctblock[0] = get_value(c, BINK_SRC_INTRA_DC);
1152  if ((quant_idx = read_dct_coeffs(gb, dctblock, bink_scan, &coef_count, coef_idx, -1)) < 0)
1153  return quant_idx;
1154  unquantize_dct_coeffs(dctblock, bink_intra_quant[quant_idx], coef_count, coef_idx, bink_scan);
1155  c->binkdsp.idct_put(dst, stride, dctblock);
1156  break;
1157  case FILL_BLOCK:
1158  v = get_value(c, BINK_SRC_COLORS);
1159  c->bdsp.fill_block_tab[1](dst, v, stride, 8);
1160  break;
1161  case INTER_BLOCK:
1162  ret = bink_put_pixels(c, dst, prev, stride,
1163  ref_start, ref_end);
1164  if (ret < 0)
1165  return ret;
1166  memset(dctblock, 0, sizeof(*dctblock) * 64);
1167  dctblock[0] = get_value(c, BINK_SRC_INTER_DC);
1168  if ((quant_idx = read_dct_coeffs(gb, dctblock, bink_scan, &coef_count, coef_idx, -1)) < 0)
1169  return quant_idx;
1170  unquantize_dct_coeffs(dctblock, bink_inter_quant[quant_idx], coef_count, coef_idx, bink_scan);
1171  c->binkdsp.idct_add(dst, stride, dctblock);
1172  break;
1173  case PATTERN_BLOCK:
1174  for (i = 0; i < 2; i++)
1175  col[i] = get_value(c, BINK_SRC_COLORS);
1176  for (i = 0; i < 8; i++) {
1177  v = get_value(c, BINK_SRC_PATTERN);
1178  for (j = 0; j < 8; j++, v >>= 1)
1179  dst[i*stride + j] = col[v & 1];
1180  }
1181  break;
1182  case RAW_BLOCK:
1183  for (i = 0; i < 8; i++)
1184  memcpy(dst + i*stride, c->bundle[BINK_SRC_COLORS].cur_ptr + i*8, 8);
1185  c->bundle[BINK_SRC_COLORS].cur_ptr += 64;
1186  break;
1187  default:
1188  av_log(c->avctx, AV_LOG_ERROR, "Unknown block type %d\n", blk);
1189  return AVERROR_INVALIDDATA;
1190  }
1191  }
1192  }
1193  if (get_bits_count(gb) & 0x1F) //next plane data starts at 32-bit boundary
1194  skip_bits_long(gb, 32 - (get_bits_count(gb) & 0x1F));
1195 
1196  return 0;
1197 }
1198 
1199 static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *pkt)
1200 {
1201  BinkContext * const c = avctx->priv_data;
1202  AVFrame *frame = data;
1203  GetBitContext gb;
1204  int plane, plane_idx, ret;
1205  int bits_count = pkt->size << 3;
1206 
1207  if (c->version > 'b') {
1208  if ((ret = ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF)) < 0)
1209  return ret;
1210  } else {
1211  if ((ret = ff_reget_buffer(avctx, c->last)) < 0)
1212  return ret;
1213  if ((ret = av_frame_ref(frame, c->last)) < 0)
1214  return ret;
1215  }
1216 
1217  init_get_bits(&gb, pkt->data, bits_count);
1218  if (c->has_alpha) {
1219  if (c->version >= 'i')
1220  skip_bits_long(&gb, 32);
1221  if ((ret = bink_decode_plane(c, frame, &gb, 3, 0)) < 0)
1222  return ret;
1223  }
1224  if (c->version >= 'i')
1225  skip_bits_long(&gb, 32);
1226 
1227  c->frame_num++;
1228 
1229  for (plane = 0; plane < 3; plane++) {
1230  plane_idx = (!plane || !c->swap_planes) ? plane : (plane ^ 3);
1231 
1232  if (c->version > 'b') {
1233  if ((ret = bink_decode_plane(c, frame, &gb, plane_idx, !!plane)) < 0)
1234  return ret;
1235  } else {
1236  if ((ret = binkb_decode_plane(c, frame, &gb, plane_idx,
1237  c->frame_num == 1, !!plane)) < 0)
1238  return ret;
1239  }
1240  if (get_bits_count(&gb) >= bits_count)
1241  break;
1242  }
1243  emms_c();
1244 
1245  if (c->version > 'b') {
1246  av_frame_unref(c->last);
1247  if ((ret = av_frame_ref(c->last, frame)) < 0)
1248  return ret;
1249  }
1250 
1251  *got_frame = 1;
1252 
1253  /* always report that the buffer was completely consumed */
1254  return pkt->size;
1255 }
1256 
1257 /**
1258  * Calculate quantization tables for version b
1259  */
1260 static av_cold void binkb_calc_quant(void)
1261 {
1262  uint8_t inv_bink_scan[64];
1263  static const int s[64]={
1264  1073741824,1489322693,1402911301,1262586814,1073741824, 843633538, 581104888, 296244703,
1265  1489322693,2065749918,1945893874,1751258219,1489322693,1170153332, 806015634, 410903207,
1266  1402911301,1945893874,1832991949,1649649171,1402911301,1102260336, 759250125, 387062357,
1267  1262586814,1751258219,1649649171,1484645031,1262586814, 992008094, 683307060, 348346918,
1268  1073741824,1489322693,1402911301,1262586814,1073741824, 843633538, 581104888, 296244703,
1269  843633538,1170153332,1102260336, 992008094, 843633538, 662838617, 456571181, 232757969,
1270  581104888, 806015634, 759250125, 683307060, 581104888, 456571181, 314491699, 160326478,
1271  296244703, 410903207, 387062357, 348346918, 296244703, 232757969, 160326478, 81733730,
1272  };
1273  int i, j;
1274 #define C (1LL<<30)
1275  for (i = 0; i < 64; i++)
1276  inv_bink_scan[bink_scan[i]] = i;
1277 
1278  for (j = 0; j < 16; j++) {
1279  for (i = 0; i < 64; i++) {
1280  int k = inv_bink_scan[i];
1281  binkb_intra_quant[j][k] = binkb_intra_seed[i] * (int64_t)s[i] *
1282  binkb_num[j]/(binkb_den[j] * (C>>12));
1283  binkb_inter_quant[j][k] = binkb_inter_seed[i] * (int64_t)s[i] *
1284  binkb_num[j]/(binkb_den[j] * (C>>12));
1285  }
1286  }
1287 }
1288 
1290 {
1291  BinkContext * const c = avctx->priv_data;
1292  static VLC_TYPE table[16 * 128][2];
1293  static int binkb_initialised = 0;
1294  int i, ret;
1295  int flags;
1296 
1297  c->version = avctx->codec_tag >> 24;
1298  if (avctx->extradata_size < 4) {
1299  av_log(avctx, AV_LOG_ERROR, "Extradata missing or too short\n");
1300  return AVERROR_INVALIDDATA;
1301  }
1302  flags = AV_RL32(avctx->extradata);
1303  c->has_alpha = flags & BINK_FLAG_ALPHA;
1304  c->swap_planes = c->version >= 'h';
1305  if (!bink_trees[15].table) {
1306  for (i = 0; i < 16; i++) {
1307  const int maxbits = bink_tree_lens[i][15];
1308  bink_trees[i].table = table + i*128;
1309  bink_trees[i].table_allocated = 1 << maxbits;
1310  init_vlc(&bink_trees[i], maxbits, 16,
1311  bink_tree_lens[i], 1, 1,
1313  }
1314  }
1315  c->avctx = avctx;
1316 
1317  c->last = av_frame_alloc();
1318  if (!c->last)
1319  return AVERROR(ENOMEM);
1320 
1321  if ((ret = av_image_check_size(avctx->width, avctx->height, 0, avctx)) < 0)
1322  return ret;
1323 
1325 
1326  ff_blockdsp_init(&c->bdsp, avctx);
1327  ff_hpeldsp_init(&c->hdsp, avctx->flags);
1328  ff_binkdsp_init(&c->binkdsp);
1329 
1330  if ((ret = init_bundles(c)) < 0) {
1331  free_bundles(c);
1332  return ret;
1333  }
1334 
1335  if (c->version == 'b') {
1336  if (!binkb_initialised) {
1337  binkb_calc_quant();
1338  binkb_initialised = 1;
1339  }
1340  }
1341 
1342  return 0;
1343 }
1344 
1346 {
1347  BinkContext * const c = avctx->priv_data;
1348 
1349  av_frame_free(&c->last);
1350 
1351  free_bundles(c);
1352  return 0;
1353 }
1354 
1355 static void flush(AVCodecContext *avctx)
1356 {
1357  BinkContext * const c = avctx->priv_data;
1358 
1359  c->frame_num = 0;
1360 }
1361 
1363  .name = "binkvideo",
1364  .long_name = NULL_IF_CONFIG_SMALL("Bink video"),
1365  .type = AVMEDIA_TYPE_VIDEO,
1366  .id = AV_CODEC_ID_BINKVIDEO,
1367  .priv_data_size = sizeof(BinkContext),
1368  .init = decode_init,
1369  .close = decode_end,
1370  .decode = decode_frame,
1371  .flush = flush,
1372  .capabilities = AV_CODEC_CAP_DR1,
1373 };
int plane
Definition: avisynth_c.h:422
#define NULL
Definition: coverity.c:32
const char const char void * val
Definition: avisynth_c.h:771
const char * s
Definition: avisynth_c.h:768
#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:201
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:261
#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)
Definition: get_bits.h:204
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:35
static const uint8_t binkb_den[16]
Definition: binkdata.h:651
static int read_residue(GetBitContext *gb, int16_t block[64], int masks_count)
Read 8x8 block with residue after motion compensation.
Definition: bink.c:717
int size
Definition: avcodec.h:1401
const char * b
Definition: vf_curves.c:113
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:1697
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:3351
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:1935
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:533
static int read_patterns(AVCodecContext *avctx, GetBitContext *gb, Bundle *b)
Definition: bink.c:407
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:97
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:150
static int binkb_get_value(BinkContext *c, int bundle_num)
Definition: bink.c:581
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:802
Tree tree
Huffman tree-related data.
Definition: bink.c:104
BlockTypes
Bink video block types.
Definition: bink.c:133
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:400
uncoded 8x8 block
Definition: bink.c:143
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
Definition: avcodec.h:1588
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:697
static AVFrame * frame
uint8_t * data
Definition: avcodec.h:1400
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:199
static int flags
Definition: log.c:57
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,...)
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:163
static const struct endianess table[]
#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:1568
uint16_t width
Definition: gdv.c:47
AVCodec ff_bink_decoder
Definition: bink.c:1362
const char * name
Name of the codec implementation.
Definition: avcodec.h:3358
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:1260
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
int width
picture width / height.
Definition: avcodec.h:1660
static int binkb_decode_plane(BinkContext *c, AVFrame *frame, GetBitContext *gb, int plane_idx, int is_key, int is_chroma)
Definition: bink.c:812
Y components of motion value.
Definition: bink.c:50
number of coefficients for residue blocks
Definition: bink.c:55
int32_t
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
#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:980
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:232
#define DC_START_BITS
number of bits used to store first DC value in bundle
Definition: bink.c:466
main external API structure.
Definition: avcodec.h:1488
unsigned int codec_tag
fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
Definition: avcodec.h:1513
int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
Get a buffer for a frame.
Definition: decode.c:1886
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:1289
int extradata_size
Definition: avcodec.h:1589
static unsigned int get_bits1(GetBitContext *s)
Definition: get_bits.h:313
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:540
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:425
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:510
Bundle bundle[BINKB_NB_SRC]
bundles for decoding all data types
Definition: bink.c:125
static void flush(AVCodecContext *avctx)
Definition: bink.c:1355
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:215
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
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:62
static int binkb_read_bundle(BinkContext *c, GetBitContext *gb, int bundle_num)
Definition: bink.c:547
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:427
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:468
static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *pkt)
Definition: bink.c:1199
DC values for intrablocks with DCT.
Definition: bink.c:51
void * priv_data
Definition: avcodec.h:1515
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:962
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:1345
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:604
#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:520
This structure stores compressed data.
Definition: avcodec.h:1377
#define AV_GET_BUFFER_FLAG_REF
The decoder will keep a reference to the frame and may reuse it later.
Definition: avcodec.h:1118
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:956
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