FFmpeg  4.3.7
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 int 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  if (get_bits_left(gb) < 4)
250  return AVERROR_INVALIDDATA;
251 
252  tree->vlc_num = get_bits(gb, 4);
253  if (!tree->vlc_num) {
254  for (i = 0; i < 16; i++)
255  tree->syms[i] = i;
256  return 0;
257  }
258  if (get_bits1(gb)) {
259  len = get_bits(gb, 3);
260  for (i = 0; i <= len; i++) {
261  tree->syms[i] = get_bits(gb, 4);
262  tmp1[tree->syms[i]] = 1;
263  }
264  for (i = 0; i < 16 && len < 16 - 1; i++)
265  if (!tmp1[i])
266  tree->syms[++len] = i;
267  } else {
268  len = get_bits(gb, 2);
269  for (i = 0; i < 16; i++)
270  in[i] = i;
271  for (i = 0; i <= len; i++) {
272  int size = 1 << i;
273  for (t = 0; t < 16; t += size << 1)
274  merge(gb, out + t, in + t, size);
275  FFSWAP(uint8_t*, in, out);
276  }
277  memcpy(tree->syms, in, 16);
278  }
279  return 0;
280 }
281 
282 /**
283  * Prepare bundle for decoding data.
284  *
285  * @param gb context for reading bits
286  * @param c decoder context
287  * @param bundle_num number of the bundle to initialize
288  */
289 static int read_bundle(GetBitContext *gb, BinkContext *c, int bundle_num)
290 {
291  int i;
292 
293  if (bundle_num == BINK_SRC_COLORS) {
294  for (i = 0; i < 16; i++) {
295  int ret = read_tree(gb, &c->col_high[i]);
296  if (ret < 0)
297  return ret;
298  }
299  c->col_lastval = 0;
300  }
301  if (bundle_num != BINK_SRC_INTRA_DC && bundle_num != BINK_SRC_INTER_DC) {
302  int ret = read_tree(gb, &c->bundle[bundle_num].tree);
303  if (ret < 0)
304  return ret;
305  }
306  c->bundle[bundle_num].cur_dec =
307  c->bundle[bundle_num].cur_ptr = c->bundle[bundle_num].data;
308 
309  return 0;
310 }
311 
312 /**
313  * common check before starting decoding bundle data
314  *
315  * @param gb context for reading bits
316  * @param b bundle
317  * @param t variable where number of elements to decode will be stored
318  */
319 #define CHECK_READ_VAL(gb, b, t) \
320  if (!b->cur_dec || (b->cur_dec > b->cur_ptr)) \
321  return 0; \
322  t = get_bits(gb, b->len); \
323  if (!t) { \
324  b->cur_dec = NULL; \
325  return 0; \
326  } \
327 
328 static int read_runs(AVCodecContext *avctx, GetBitContext *gb, Bundle *b)
329 {
330  int t, v;
331  const uint8_t *dec_end;
332 
333  CHECK_READ_VAL(gb, b, t);
334  dec_end = b->cur_dec + t;
335  if (dec_end > b->data_end) {
336  av_log(avctx, AV_LOG_ERROR, "Run value went out of bounds\n");
337  return AVERROR_INVALIDDATA;
338  }
339  if (get_bits_left(gb) < 1)
340  return AVERROR_INVALIDDATA;
341  if (get_bits1(gb)) {
342  v = get_bits(gb, 4);
343  memset(b->cur_dec, v, t);
344  b->cur_dec += t;
345  } else {
346  while (b->cur_dec < dec_end)
347  *b->cur_dec++ = GET_HUFF(gb, b->tree);
348  }
349  return 0;
350 }
351 
353 {
354  int t, sign, v;
355  const uint8_t *dec_end;
356 
357  CHECK_READ_VAL(gb, b, t);
358  dec_end = b->cur_dec + t;
359  if (dec_end > b->data_end) {
360  av_log(avctx, AV_LOG_ERROR, "Too many motion values\n");
361  return AVERROR_INVALIDDATA;
362  }
363  if (get_bits_left(gb) < 1)
364  return AVERROR_INVALIDDATA;
365  if (get_bits1(gb)) {
366  v = get_bits(gb, 4);
367  if (v) {
368  sign = -get_bits1(gb);
369  v = (v ^ sign) - sign;
370  }
371  memset(b->cur_dec, v, t);
372  b->cur_dec += t;
373  } else {
374  while (b->cur_dec < dec_end) {
375  v = GET_HUFF(gb, b->tree);
376  if (v) {
377  sign = -get_bits1(gb);
378  v = (v ^ sign) - sign;
379  }
380  *b->cur_dec++ = v;
381  }
382  }
383  return 0;
384 }
385 
386 static const uint8_t bink_rlelens[4] = { 4, 8, 12, 32 };
387 
389 {
390  BinkContext * const c = avctx->priv_data;
391  int t, v;
392  int last = 0;
393  const uint8_t *dec_end;
394 
395  CHECK_READ_VAL(gb, b, t);
396  if (c->version == 'k') {
397  t ^= 0xBBu;
398  if (t == 0) {
399  b->cur_dec = NULL;
400  return 0;
401  }
402  }
403  dec_end = b->cur_dec + t;
404  if (dec_end > b->data_end) {
405  av_log(avctx, AV_LOG_ERROR, "Too many block type values\n");
406  return AVERROR_INVALIDDATA;
407  }
408  if (get_bits_left(gb) < 1)
409  return AVERROR_INVALIDDATA;
410  if (get_bits1(gb)) {
411  v = get_bits(gb, 4);
412  memset(b->cur_dec, v, t);
413  b->cur_dec += t;
414  } else {
415  while (b->cur_dec < dec_end) {
416  v = GET_HUFF(gb, b->tree);
417  if (v < 12) {
418  last = v;
419  *b->cur_dec++ = v;
420  } else {
421  int run = bink_rlelens[v - 12];
422 
423  if (dec_end - b->cur_dec < run)
424  return AVERROR_INVALIDDATA;
425  memset(b->cur_dec, last, run);
426  b->cur_dec += run;
427  }
428  }
429  }
430  return 0;
431 }
432 
434 {
435  int t, v;
436  const uint8_t *dec_end;
437 
438  CHECK_READ_VAL(gb, b, t);
439  dec_end = b->cur_dec + t;
440  if (dec_end > b->data_end) {
441  av_log(avctx, AV_LOG_ERROR, "Too many pattern values\n");
442  return AVERROR_INVALIDDATA;
443  }
444  while (b->cur_dec < dec_end) {
445  if (get_bits_left(gb) < 2)
446  return AVERROR_INVALIDDATA;
447  v = GET_HUFF(gb, b->tree);
448  v |= GET_HUFF(gb, b->tree) << 4;
449  *b->cur_dec++ = v;
450  }
451 
452  return 0;
453 }
454 
456 {
457  int t, sign, v;
458  const uint8_t *dec_end;
459 
460  CHECK_READ_VAL(gb, b, t);
461  dec_end = b->cur_dec + t;
462  if (dec_end > b->data_end) {
463  av_log(c->avctx, AV_LOG_ERROR, "Too many color values\n");
464  return AVERROR_INVALIDDATA;
465  }
466  if (get_bits_left(gb) < 1)
467  return AVERROR_INVALIDDATA;
468  if (get_bits1(gb)) {
469  c->col_lastval = GET_HUFF(gb, c->col_high[c->col_lastval]);
470  v = GET_HUFF(gb, b->tree);
471  v = (c->col_lastval << 4) | v;
472  if (c->version < 'i') {
473  sign = ((int8_t) v) >> 7;
474  v = ((v & 0x7F) ^ sign) - sign;
475  v += 0x80;
476  }
477  memset(b->cur_dec, v, t);
478  b->cur_dec += t;
479  } else {
480  while (b->cur_dec < dec_end) {
481  if (get_bits_left(gb) < 2)
482  return AVERROR_INVALIDDATA;
483  c->col_lastval = GET_HUFF(gb, c->col_high[c->col_lastval]);
484  v = GET_HUFF(gb, b->tree);
485  v = (c->col_lastval << 4) | v;
486  if (c->version < 'i') {
487  sign = ((int8_t) v) >> 7;
488  v = ((v & 0x7F) ^ sign) - sign;
489  v += 0x80;
490  }
491  *b->cur_dec++ = v;
492  }
493  }
494  return 0;
495 }
496 
497 /** number of bits used to store first DC value in bundle */
498 #define DC_START_BITS 11
499 
500 static int read_dcs(AVCodecContext *avctx, GetBitContext *gb, Bundle *b,
501  int start_bits, int has_sign)
502 {
503  int i, j, len, len2, bsize, sign, v, v2;
504  int16_t *dst = (int16_t*)b->cur_dec;
505  int16_t *dst_end = (int16_t*)b->data_end;
506 
507  CHECK_READ_VAL(gb, b, len);
508  if (get_bits_left(gb) < start_bits - has_sign)
509  return AVERROR_INVALIDDATA;
510  v = get_bits(gb, start_bits - has_sign);
511  if (v && has_sign) {
512  sign = -get_bits1(gb);
513  v = (v ^ sign) - sign;
514  }
515  if (dst_end - dst < 1)
516  return AVERROR_INVALIDDATA;
517  *dst++ = v;
518  len--;
519  for (i = 0; i < len; i += 8) {
520  len2 = FFMIN(len - i, 8);
521  if (dst_end - dst < len2)
522  return AVERROR_INVALIDDATA;
523  bsize = get_bits(gb, 4);
524  if (bsize) {
525  for (j = 0; j < len2; j++) {
526  v2 = get_bits(gb, bsize);
527  if (v2) {
528  sign = -get_bits1(gb);
529  v2 = (v2 ^ sign) - sign;
530  }
531  v += v2;
532  *dst++ = v;
533  if (v < -32768 || v > 32767) {
534  av_log(avctx, AV_LOG_ERROR, "DC value went out of bounds: %d\n", v);
535  return AVERROR_INVALIDDATA;
536  }
537  }
538  } else {
539  for (j = 0; j < len2; j++)
540  *dst++ = v;
541  }
542  }
543 
544  b->cur_dec = (uint8_t*)dst;
545  return 0;
546 }
547 
548 /**
549  * Retrieve next value from bundle.
550  *
551  * @param c decoder context
552  * @param bundle bundle number
553  */
554 static inline int get_value(BinkContext *c, int bundle)
555 {
556  int ret;
557 
558  if (bundle < BINK_SRC_X_OFF || bundle == BINK_SRC_RUN)
559  return *c->bundle[bundle].cur_ptr++;
560  if (bundle == BINK_SRC_X_OFF || bundle == BINK_SRC_Y_OFF)
561  return (int8_t)*c->bundle[bundle].cur_ptr++;
562  ret = *(int16_t*)c->bundle[bundle].cur_ptr;
563  c->bundle[bundle].cur_ptr += 2;
564  return ret;
565 }
566 
567 static av_cold void binkb_init_bundle(BinkContext *c, int bundle_num)
568 {
569  c->bundle[bundle_num].cur_dec =
570  c->bundle[bundle_num].cur_ptr = c->bundle[bundle_num].data;
571  c->bundle[bundle_num].len = 13;
572 }
573 
575 {
576  int i;
577  for (i = 0; i < BINKB_NB_SRC; i++)
578  binkb_init_bundle(c, i);
579 }
580 
581 static int binkb_read_bundle(BinkContext *c, GetBitContext *gb, int bundle_num)
582 {
583  const int bits = binkb_bundle_sizes[bundle_num];
584  const int mask = 1 << (bits - 1);
585  const int issigned = binkb_bundle_signed[bundle_num];
586  Bundle *b = &c->bundle[bundle_num];
587  int i, len;
588 
589  CHECK_READ_VAL(gb, b, len);
590  if (b->data_end - b->cur_dec < len * (1 + (bits > 8)))
591  return AVERROR_INVALIDDATA;
592  if (bits <= 8) {
593  if (!issigned) {
594  for (i = 0; i < len; i++)
595  *b->cur_dec++ = get_bits(gb, bits);
596  } else {
597  for (i = 0; i < len; i++)
598  *b->cur_dec++ = get_bits(gb, bits) - mask;
599  }
600  } else {
601  int16_t *dst = (int16_t*)b->cur_dec;
602 
603  if (!issigned) {
604  for (i = 0; i < len; i++)
605  *dst++ = get_bits(gb, bits);
606  } else {
607  for (i = 0; i < len; i++)
608  *dst++ = get_bits(gb, bits) - mask;
609  }
610  b->cur_dec = (uint8_t*)dst;
611  }
612  return 0;
613 }
614 
615 static inline int binkb_get_value(BinkContext *c, int bundle_num)
616 {
617  int16_t ret;
618  const int bits = binkb_bundle_sizes[bundle_num];
619 
620  if (bits <= 8) {
621  int val = *c->bundle[bundle_num].cur_ptr++;
622  return binkb_bundle_signed[bundle_num] ? (int8_t)val : val;
623  }
624  ret = *(int16_t*)c->bundle[bundle_num].cur_ptr;
625  c->bundle[bundle_num].cur_ptr += 2;
626  return ret;
627 }
628 
629 /**
630  * Read 8x8 block of DCT coefficients.
631  *
632  * @param gb context for reading bits
633  * @param block place for storing coefficients
634  * @param scan scan order table
635  * @param quant_matrices quantization matrices
636  * @return 0 for success, negative value in other cases
637  */
639  const uint8_t *scan, int *coef_count_,
640  int coef_idx[64], int q)
641 {
642  int coef_list[128];
643  int mode_list[128];
644  int i, t, bits, ccoef, mode, sign;
645  int list_start = 64, list_end = 64, list_pos;
646  int coef_count = 0;
647  int quant_idx;
648 
649  if (get_bits_left(gb) < 4)
650  return AVERROR_INVALIDDATA;
651 
652  coef_list[list_end] = 4; mode_list[list_end++] = 0;
653  coef_list[list_end] = 24; mode_list[list_end++] = 0;
654  coef_list[list_end] = 44; mode_list[list_end++] = 0;
655  coef_list[list_end] = 1; mode_list[list_end++] = 3;
656  coef_list[list_end] = 2; mode_list[list_end++] = 3;
657  coef_list[list_end] = 3; mode_list[list_end++] = 3;
658 
659  for (bits = get_bits(gb, 4) - 1; bits >= 0; bits--) {
660  list_pos = list_start;
661  while (list_pos < list_end) {
662  if (!(mode_list[list_pos] | coef_list[list_pos]) || !get_bits1(gb)) {
663  list_pos++;
664  continue;
665  }
666  ccoef = coef_list[list_pos];
667  mode = mode_list[list_pos];
668  switch (mode) {
669  case 0:
670  coef_list[list_pos] = ccoef + 4;
671  mode_list[list_pos] = 1;
672  case 2:
673  if (mode == 2) {
674  coef_list[list_pos] = 0;
675  mode_list[list_pos++] = 0;
676  }
677  for (i = 0; i < 4; i++, ccoef++) {
678  if (get_bits1(gb)) {
679  coef_list[--list_start] = ccoef;
680  mode_list[ list_start] = 3;
681  } else {
682  if (!bits) {
683  t = 1 - (get_bits1(gb) << 1);
684  } else {
685  t = get_bits(gb, bits) | 1 << bits;
686  sign = -get_bits1(gb);
687  t = (t ^ sign) - sign;
688  }
689  block[scan[ccoef]] = t;
690  coef_idx[coef_count++] = ccoef;
691  }
692  }
693  break;
694  case 1:
695  mode_list[list_pos] = 2;
696  for (i = 0; i < 3; i++) {
697  ccoef += 4;
698  coef_list[list_end] = ccoef;
699  mode_list[list_end++] = 2;
700  }
701  break;
702  case 3:
703  if (!bits) {
704  t = 1 - (get_bits1(gb) << 1);
705  } else {
706  t = get_bits(gb, bits) | 1 << bits;
707  sign = -get_bits1(gb);
708  t = (t ^ sign) - sign;
709  }
710  block[scan[ccoef]] = t;
711  coef_idx[coef_count++] = ccoef;
712  coef_list[list_pos] = 0;
713  mode_list[list_pos++] = 0;
714  break;
715  }
716  }
717  }
718 
719  if (q == -1) {
720  quant_idx = get_bits(gb, 4);
721  } else {
722  quant_idx = q;
723  if (quant_idx > 15U) {
724  av_log(c->avctx, AV_LOG_ERROR, "quant_index %d out of range\n", quant_idx);
725  return AVERROR_INVALIDDATA;
726  }
727  }
728 
729  *coef_count_ = coef_count;
730 
731  return quant_idx;
732 }
733 
734 static void unquantize_dct_coeffs(int32_t block[64], const uint32_t quant[64],
735  int coef_count, int coef_idx[64],
736  const uint8_t *scan)
737 {
738  int i;
739  block[0] = (int)(block[0] * quant[0]) >> 11;
740  for (i = 0; i < coef_count; i++) {
741  int idx = coef_idx[i];
742  block[scan[idx]] = (int)(block[scan[idx]] * quant[idx]) >> 11;
743  }
744 }
745 
746 /**
747  * Read 8x8 block with residue after motion compensation.
748  *
749  * @param gb context for reading bits
750  * @param block place to store read data
751  * @param masks_count number of masks to decode
752  * @return 0 on success, negative value in other cases
753  */
754 static int read_residue(GetBitContext *gb, int16_t block[64], int masks_count)
755 {
756  int coef_list[128];
757  int mode_list[128];
758  int i, sign, mask, ccoef, mode;
759  int list_start = 64, list_end = 64, list_pos;
760  int nz_coeff[64];
761  int nz_coeff_count = 0;
762 
763  coef_list[list_end] = 4; mode_list[list_end++] = 0;
764  coef_list[list_end] = 24; mode_list[list_end++] = 0;
765  coef_list[list_end] = 44; mode_list[list_end++] = 0;
766  coef_list[list_end] = 0; mode_list[list_end++] = 2;
767 
768  for (mask = 1 << get_bits(gb, 3); mask; mask >>= 1) {
769  for (i = 0; i < nz_coeff_count; i++) {
770  if (!get_bits1(gb))
771  continue;
772  if (block[nz_coeff[i]] < 0)
773  block[nz_coeff[i]] -= mask;
774  else
775  block[nz_coeff[i]] += mask;
776  masks_count--;
777  if (masks_count < 0)
778  return 0;
779  }
780  list_pos = list_start;
781  while (list_pos < list_end) {
782  if (!(coef_list[list_pos] | mode_list[list_pos]) || !get_bits1(gb)) {
783  list_pos++;
784  continue;
785  }
786  ccoef = coef_list[list_pos];
787  mode = mode_list[list_pos];
788  switch (mode) {
789  case 0:
790  coef_list[list_pos] = ccoef + 4;
791  mode_list[list_pos] = 1;
792  case 2:
793  if (mode == 2) {
794  coef_list[list_pos] = 0;
795  mode_list[list_pos++] = 0;
796  }
797  for (i = 0; i < 4; i++, ccoef++) {
798  if (get_bits1(gb)) {
799  coef_list[--list_start] = ccoef;
800  mode_list[ list_start] = 3;
801  } else {
802  nz_coeff[nz_coeff_count++] = bink_scan[ccoef];
803  sign = -get_bits1(gb);
804  block[bink_scan[ccoef]] = (mask ^ sign) - sign;
805  masks_count--;
806  if (masks_count < 0)
807  return 0;
808  }
809  }
810  break;
811  case 1:
812  mode_list[list_pos] = 2;
813  for (i = 0; i < 3; i++) {
814  ccoef += 4;
815  coef_list[list_end] = ccoef;
816  mode_list[list_end++] = 2;
817  }
818  break;
819  case 3:
820  nz_coeff[nz_coeff_count++] = bink_scan[ccoef];
821  sign = -get_bits1(gb);
822  block[bink_scan[ccoef]] = (mask ^ sign) - sign;
823  coef_list[list_pos] = 0;
824  mode_list[list_pos++] = 0;
825  masks_count--;
826  if (masks_count < 0)
827  return 0;
828  break;
829  }
830  }
831  }
832 
833  return 0;
834 }
835 
836 /**
837  * Copy 8x8 block from source to destination, where src and dst may be overlapped
838  */
839 static inline void put_pixels8x8_overlapped(uint8_t *dst, uint8_t *src, int stride)
840 {
841  uint8_t tmp[64];
842  int i;
843  for (i = 0; i < 8; i++)
844  memcpy(tmp + i*8, src + i*stride, 8);
845  for (i = 0; i < 8; i++)
846  memcpy(dst + i*stride, tmp + i*8, 8);
847 }
848 
850  int plane_idx, int is_key, int is_chroma)
851 {
852  int blk, ret;
853  int i, j, bx, by;
854  uint8_t *dst, *ref, *ref_start, *ref_end;
855  int v, col[2];
856  const uint8_t *scan;
857  int xoff, yoff;
858  LOCAL_ALIGNED_32(int16_t, block, [64]);
859  LOCAL_ALIGNED_16(int32_t, dctblock, [64]);
860  int coordmap[64];
861  int ybias = is_key ? -15 : 0;
862  int qp, quant_idx, coef_count, coef_idx[64];
863 
864  const int stride = frame->linesize[plane_idx];
865  int bw = is_chroma ? (c->avctx->width + 15) >> 4 : (c->avctx->width + 7) >> 3;
866  int bh = is_chroma ? (c->avctx->height + 15) >> 4 : (c->avctx->height + 7) >> 3;
867 
869  ref_start = frame->data[plane_idx];
870  ref_end = frame->data[plane_idx] + ((bh - 1) * frame->linesize[plane_idx] + bw - 1) * 8;
871 
872  for (i = 0; i < 64; i++)
873  coordmap[i] = (i & 7) + (i >> 3) * stride;
874 
875  for (by = 0; by < bh; by++) {
876  for (i = 0; i < BINKB_NB_SRC; i++) {
877  if ((ret = binkb_read_bundle(c, gb, i)) < 0)
878  return ret;
879  }
880 
881  dst = frame->data[plane_idx] + 8*by*stride;
882  for (bx = 0; bx < bw; bx++, dst += 8) {
884  switch (blk) {
885  case 0:
886  break;
887  case 1:
888  scan = bink_patterns[get_bits(gb, 4)];
889  i = 0;
890  do {
891  int mode, run;
892 
893  mode = get_bits1(gb);
894  run = get_bits(gb, binkb_runbits[i]) + 1;
895 
896  i += run;
897  if (i > 64) {
898  av_log(c->avctx, AV_LOG_ERROR, "Run went out of bounds\n");
899  return AVERROR_INVALIDDATA;
900  }
901  if (mode) {
903  for (j = 0; j < run; j++)
904  dst[coordmap[*scan++]] = v;
905  } else {
906  for (j = 0; j < run; j++)
907  dst[coordmap[*scan++]] = binkb_get_value(c, BINKB_SRC_COLORS);
908  }
909  } while (i < 63);
910  if (i == 63)
911  dst[coordmap[*scan++]] = binkb_get_value(c, BINKB_SRC_COLORS);
912  break;
913  case 2:
914  memset(dctblock, 0, sizeof(*dctblock) * 64);
915  dctblock[0] = binkb_get_value(c, BINKB_SRC_INTRA_DC);
917  if ((quant_idx = read_dct_coeffs(c, gb, dctblock, bink_scan, &coef_count, coef_idx, qp)) < 0)
918  return quant_idx;
919  unquantize_dct_coeffs(dctblock, binkb_intra_quant[quant_idx], coef_count, coef_idx, bink_scan);
920  c->binkdsp.idct_put(dst, stride, dctblock);
921  break;
922  case 3:
923  xoff = binkb_get_value(c, BINKB_SRC_X_OFF);
924  yoff = binkb_get_value(c, BINKB_SRC_Y_OFF) + ybias;
925  ref = dst + xoff + yoff * stride;
926  if (ref < ref_start || ref > ref_end) {
927  av_log(c->avctx, AV_LOG_WARNING, "Reference block is out of bounds\n");
928  } else if (ref + 8*stride < dst || ref >= dst + 8*stride) {
929  c->hdsp.put_pixels_tab[1][0](dst, ref, stride, 8);
930  } else {
931  put_pixels8x8_overlapped(dst, ref, stride);
932  }
933  c->bdsp.clear_block(block);
935  read_residue(gb, block, v);
936  c->binkdsp.add_pixels8(dst, block, stride);
937  break;
938  case 4:
939  xoff = binkb_get_value(c, BINKB_SRC_X_OFF);
940  yoff = binkb_get_value(c, BINKB_SRC_Y_OFF) + ybias;
941  ref = dst + xoff + yoff * stride;
942  if (ref < ref_start || ref > ref_end) {
943  av_log(c->avctx, AV_LOG_WARNING, "Reference block is out of bounds\n");
944  } else if (ref + 8*stride < dst || ref >= dst + 8*stride) {
945  c->hdsp.put_pixels_tab[1][0](dst, ref, stride, 8);
946  } else {
947  put_pixels8x8_overlapped(dst, ref, stride);
948  }
949  memset(dctblock, 0, sizeof(*dctblock) * 64);
950  dctblock[0] = binkb_get_value(c, BINKB_SRC_INTER_DC);
952  if ((quant_idx = read_dct_coeffs(c, gb, dctblock, bink_scan, &coef_count, coef_idx, qp)) < 0)
953  return quant_idx;
954  unquantize_dct_coeffs(dctblock, binkb_inter_quant[quant_idx], coef_count, coef_idx, bink_scan);
955  c->binkdsp.idct_add(dst, stride, dctblock);
956  break;
957  case 5:
959  c->bdsp.fill_block_tab[1](dst, v, stride, 8);
960  break;
961  case 6:
962  for (i = 0; i < 2; i++)
963  col[i] = binkb_get_value(c, BINKB_SRC_COLORS);
964  for (i = 0; i < 8; i++) {
966  for (j = 0; j < 8; j++, v >>= 1)
967  dst[i*stride + j] = col[v & 1];
968  }
969  break;
970  case 7:
971  xoff = binkb_get_value(c, BINKB_SRC_X_OFF);
972  yoff = binkb_get_value(c, BINKB_SRC_Y_OFF) + ybias;
973  ref = dst + xoff + yoff * stride;
974  if (ref < ref_start || ref > ref_end) {
975  av_log(c->avctx, AV_LOG_WARNING, "Reference block is out of bounds\n");
976  } else if (ref + 8*stride < dst || ref >= dst + 8*stride) {
977  c->hdsp.put_pixels_tab[1][0](dst, ref, stride, 8);
978  } else {
979  put_pixels8x8_overlapped(dst, ref, stride);
980  }
981  break;
982  case 8:
983  for (i = 0; i < 8; i++)
984  memcpy(dst + i*stride, c->bundle[BINKB_SRC_COLORS].cur_ptr + i*8, 8);
985  c->bundle[BINKB_SRC_COLORS].cur_ptr += 64;
986  break;
987  default:
988  av_log(c->avctx, AV_LOG_ERROR, "Unknown block type %d\n", blk);
989  return AVERROR_INVALIDDATA;
990  }
991  }
992  }
993  if (get_bits_count(gb) & 0x1F) //next plane data starts at 32-bit boundary
994  skip_bits_long(gb, 32 - (get_bits_count(gb) & 0x1F));
995 
996  return 0;
997 }
998 
1000  uint8_t *dst, uint8_t *prev, int stride,
1001  uint8_t *ref_start,
1002  uint8_t *ref_end)
1003 {
1004  int xoff = get_value(c, BINK_SRC_X_OFF);
1005  int yoff = get_value(c, BINK_SRC_Y_OFF);
1006  uint8_t *ref = prev + xoff + yoff * stride;
1007  if (ref < ref_start || ref > ref_end) {
1008  av_log(c->avctx, AV_LOG_ERROR, "Copy out of bounds @%d, %d\n",
1009  xoff, yoff);
1010  return AVERROR_INVALIDDATA;
1011  }
1012  c->hdsp.put_pixels_tab[1][0](dst, ref, stride, 8);
1013 
1014  return 0;
1015 }
1016 
1018  int plane_idx, int is_chroma)
1019 {
1020  int blk, ret;
1021  int i, j, bx, by;
1022  uint8_t *dst, *prev, *ref_start, *ref_end;
1023  int v, col[2];
1024  const uint8_t *scan;
1025  LOCAL_ALIGNED_32(int16_t, block, [64]);
1026  LOCAL_ALIGNED_16(uint8_t, ublock, [64]);
1027  LOCAL_ALIGNED_16(int32_t, dctblock, [64]);
1028  int coordmap[64], quant_idx, coef_count, coef_idx[64];
1029 
1030  const int stride = frame->linesize[plane_idx];
1031  int bw = is_chroma ? (c->avctx->width + 15) >> 4 : (c->avctx->width + 7) >> 3;
1032  int bh = is_chroma ? (c->avctx->height + 15) >> 4 : (c->avctx->height + 7) >> 3;
1033  int width = c->avctx->width >> is_chroma;
1034  int height = c->avctx->height >> is_chroma;
1035 
1036  if (c->version == 'k' && get_bits1(gb)) {
1037  int fill = get_bits(gb, 8);
1038 
1039  dst = frame->data[plane_idx];
1040 
1041  for (i = 0; i < height; i++)
1042  memset(dst + i * stride, fill, width);
1043  goto end;
1044  }
1045 
1046  init_lengths(c, FFMAX(width, 8), bw);
1047  for (i = 0; i < BINK_NB_SRC; i++) {
1048  ret = read_bundle(gb, c, i);
1049  if (ret < 0)
1050  return ret;
1051  }
1052 
1053  ref_start = c->last->data[plane_idx] ? c->last->data[plane_idx]
1054  : frame->data[plane_idx];
1055  ref_end = ref_start
1056  + (bw - 1 + c->last->linesize[plane_idx] * (bh - 1)) * 8;
1057 
1058  for (i = 0; i < 64; i++)
1059  coordmap[i] = (i & 7) + (i >> 3) * stride;
1060 
1061  for (by = 0; by < bh; by++) {
1062  if ((ret = read_block_types(c->avctx, gb, &c->bundle[BINK_SRC_BLOCK_TYPES])) < 0)
1063  return ret;
1064  if ((ret = read_block_types(c->avctx, gb, &c->bundle[BINK_SRC_SUB_BLOCK_TYPES])) < 0)
1065  return ret;
1066  if ((ret = read_colors(gb, &c->bundle[BINK_SRC_COLORS], c)) < 0)
1067  return ret;
1068  if ((ret = read_patterns(c->avctx, gb, &c->bundle[BINK_SRC_PATTERN])) < 0)
1069  return ret;
1070  if ((ret = read_motion_values(c->avctx, gb, &c->bundle[BINK_SRC_X_OFF])) < 0)
1071  return ret;
1072  if ((ret = read_motion_values(c->avctx, gb, &c->bundle[BINK_SRC_Y_OFF])) < 0)
1073  return ret;
1074  if ((ret = read_dcs(c->avctx, gb, &c->bundle[BINK_SRC_INTRA_DC], DC_START_BITS, 0)) < 0)
1075  return ret;
1076  if ((ret = read_dcs(c->avctx, gb, &c->bundle[BINK_SRC_INTER_DC], DC_START_BITS, 1)) < 0)
1077  return ret;
1078  if ((ret = read_runs(c->avctx, gb, &c->bundle[BINK_SRC_RUN])) < 0)
1079  return ret;
1080 
1081  dst = frame->data[plane_idx] + 8*by*stride;
1082  prev = (c->last->data[plane_idx] ? c->last->data[plane_idx]
1083  : frame->data[plane_idx]) + 8*by*stride;
1084  for (bx = 0; bx < bw; bx++, dst += 8, prev += 8) {
1085  blk = get_value(c, BINK_SRC_BLOCK_TYPES);
1086  // 16x16 block type on odd line means part of the already decoded block, so skip it
1087  if (((by & 1) || (bx & 1)) && blk == SCALED_BLOCK) {
1088  bx++;
1089  dst += 8;
1090  prev += 8;
1091  continue;
1092  }
1093  switch (blk) {
1094  case SKIP_BLOCK:
1095  c->hdsp.put_pixels_tab[1][0](dst, prev, stride, 8);
1096  break;
1097  case SCALED_BLOCK:
1099  switch (blk) {
1100  case RUN_BLOCK:
1101  if (get_bits_left(gb) < 4)
1102  return AVERROR_INVALIDDATA;
1103  scan = bink_patterns[get_bits(gb, 4)];
1104  i = 0;
1105  do {
1106  int run = get_value(c, BINK_SRC_RUN) + 1;
1107 
1108  i += run;
1109  if (i > 64) {
1110  av_log(c->avctx, AV_LOG_ERROR, "Run went out of bounds\n");
1111  return AVERROR_INVALIDDATA;
1112  }
1113  if (get_bits1(gb)) {
1114  v = get_value(c, BINK_SRC_COLORS);
1115  for (j = 0; j < run; j++)
1116  ublock[*scan++] = v;
1117  } else {
1118  for (j = 0; j < run; j++)
1119  ublock[*scan++] = get_value(c, BINK_SRC_COLORS);
1120  }
1121  } while (i < 63);
1122  if (i == 63)
1123  ublock[*scan++] = get_value(c, BINK_SRC_COLORS);
1124  break;
1125  case INTRA_BLOCK:
1126  memset(dctblock, 0, sizeof(*dctblock) * 64);
1127  dctblock[0] = get_value(c, BINK_SRC_INTRA_DC);
1128  if ((quant_idx = read_dct_coeffs(c, gb, dctblock, bink_scan, &coef_count, coef_idx, -1)) < 0)
1129  return quant_idx;
1130  unquantize_dct_coeffs(dctblock, bink_intra_quant[quant_idx], coef_count, coef_idx, bink_scan);
1131  c->binkdsp.idct_put(ublock, 8, dctblock);
1132  break;
1133  case FILL_BLOCK:
1134  v = get_value(c, BINK_SRC_COLORS);
1135  c->bdsp.fill_block_tab[0](dst, v, stride, 16);
1136  break;
1137  case PATTERN_BLOCK:
1138  for (i = 0; i < 2; i++)
1139  col[i] = get_value(c, BINK_SRC_COLORS);
1140  for (j = 0; j < 8; j++) {
1141  v = get_value(c, BINK_SRC_PATTERN);
1142  for (i = 0; i < 8; i++, v >>= 1)
1143  ublock[i + j*8] = col[v & 1];
1144  }
1145  break;
1146  case RAW_BLOCK:
1147  for (j = 0; j < 8; j++)
1148  for (i = 0; i < 8; i++)
1149  ublock[i + j*8] = get_value(c, BINK_SRC_COLORS);
1150  break;
1151  default:
1152  av_log(c->avctx, AV_LOG_ERROR, "Incorrect 16x16 block type %d\n", blk);
1153  return AVERROR_INVALIDDATA;
1154  }
1155  if (blk != FILL_BLOCK)
1156  c->binkdsp.scale_block(ublock, dst, stride);
1157  bx++;
1158  dst += 8;
1159  prev += 8;
1160  break;
1161  case MOTION_BLOCK:
1162  ret = bink_put_pixels(c, dst, prev, stride,
1163  ref_start, ref_end);
1164  if (ret < 0)
1165  return ret;
1166  break;
1167  case RUN_BLOCK:
1168  scan = bink_patterns[get_bits(gb, 4)];
1169  i = 0;
1170  do {
1171  int run = get_value(c, BINK_SRC_RUN) + 1;
1172 
1173  i += run;
1174  if (i > 64) {
1175  av_log(c->avctx, AV_LOG_ERROR, "Run went out of bounds\n");
1176  return AVERROR_INVALIDDATA;
1177  }
1178  if (get_bits1(gb)) {
1179  v = get_value(c, BINK_SRC_COLORS);
1180  for (j = 0; j < run; j++)
1181  dst[coordmap[*scan++]] = v;
1182  } else {
1183  for (j = 0; j < run; j++)
1184  dst[coordmap[*scan++]] = get_value(c, BINK_SRC_COLORS);
1185  }
1186  } while (i < 63);
1187  if (i == 63)
1188  dst[coordmap[*scan++]] = get_value(c, BINK_SRC_COLORS);
1189  break;
1190  case RESIDUE_BLOCK:
1191  ret = bink_put_pixels(c, dst, prev, stride,
1192  ref_start, ref_end);
1193  if (ret < 0)
1194  return ret;
1195  c->bdsp.clear_block(block);
1196  v = get_bits(gb, 7);
1197  read_residue(gb, block, v);
1198  c->binkdsp.add_pixels8(dst, block, stride);
1199  break;
1200  case INTRA_BLOCK:
1201  memset(dctblock, 0, sizeof(*dctblock) * 64);
1202  dctblock[0] = get_value(c, BINK_SRC_INTRA_DC);
1203  if ((quant_idx = read_dct_coeffs(c, gb, dctblock, bink_scan, &coef_count, coef_idx, -1)) < 0)
1204  return quant_idx;
1205  unquantize_dct_coeffs(dctblock, bink_intra_quant[quant_idx], coef_count, coef_idx, bink_scan);
1206  c->binkdsp.idct_put(dst, stride, dctblock);
1207  break;
1208  case FILL_BLOCK:
1209  v = get_value(c, BINK_SRC_COLORS);
1210  c->bdsp.fill_block_tab[1](dst, v, stride, 8);
1211  break;
1212  case INTER_BLOCK:
1213  ret = bink_put_pixels(c, dst, prev, stride,
1214  ref_start, ref_end);
1215  if (ret < 0)
1216  return ret;
1217  memset(dctblock, 0, sizeof(*dctblock) * 64);
1218  dctblock[0] = get_value(c, BINK_SRC_INTER_DC);
1219  if ((quant_idx = read_dct_coeffs(c, gb, dctblock, bink_scan, &coef_count, coef_idx, -1)) < 0)
1220  return quant_idx;
1221  unquantize_dct_coeffs(dctblock, bink_inter_quant[quant_idx], coef_count, coef_idx, bink_scan);
1222  c->binkdsp.idct_add(dst, stride, dctblock);
1223  break;
1224  case PATTERN_BLOCK:
1225  for (i = 0; i < 2; i++)
1226  col[i] = get_value(c, BINK_SRC_COLORS);
1227  for (i = 0; i < 8; i++) {
1228  v = get_value(c, BINK_SRC_PATTERN);
1229  for (j = 0; j < 8; j++, v >>= 1)
1230  dst[i*stride + j] = col[v & 1];
1231  }
1232  break;
1233  case RAW_BLOCK:
1234  for (i = 0; i < 8; i++)
1235  memcpy(dst + i*stride, c->bundle[BINK_SRC_COLORS].cur_ptr + i*8, 8);
1236  c->bundle[BINK_SRC_COLORS].cur_ptr += 64;
1237  break;
1238  default:
1239  av_log(c->avctx, AV_LOG_ERROR, "Unknown block type %d\n", blk);
1240  return AVERROR_INVALIDDATA;
1241  }
1242  }
1243  }
1244 
1245 end:
1246  if (get_bits_count(gb) & 0x1F) //next plane data starts at 32-bit boundary
1247  skip_bits_long(gb, 32 - (get_bits_count(gb) & 0x1F));
1248 
1249  return 0;
1250 }
1251 
1252 static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *pkt)
1253 {
1254  BinkContext * const c = avctx->priv_data;
1255  AVFrame *frame = data;
1256  GetBitContext gb;
1257  int plane, plane_idx, ret;
1258  int bits_count = pkt->size << 3;
1259 
1260  if (c->version > 'b') {
1261  if ((ret = ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF)) < 0)
1262  return ret;
1263  } else {
1264  if ((ret = ff_reget_buffer(avctx, c->last, 0)) < 0)
1265  return ret;
1266  if ((ret = av_frame_ref(frame, c->last)) < 0)
1267  return ret;
1268  }
1269 
1270  init_get_bits(&gb, pkt->data, bits_count);
1271  if (c->has_alpha) {
1272  if (c->version >= 'i')
1273  skip_bits_long(&gb, 32);
1274  if ((ret = bink_decode_plane(c, frame, &gb, 3, 0)) < 0)
1275  return ret;
1276  }
1277  if (c->version >= 'i')
1278  skip_bits_long(&gb, 32);
1279 
1280  c->frame_num++;
1281 
1282  for (plane = 0; plane < 3; plane++) {
1283  plane_idx = (!plane || !c->swap_planes) ? plane : (plane ^ 3);
1284 
1285  if (c->version > 'b') {
1286  if ((ret = bink_decode_plane(c, frame, &gb, plane_idx, !!plane)) < 0)
1287  return ret;
1288  } else {
1289  if ((ret = binkb_decode_plane(c, frame, &gb, plane_idx,
1290  c->frame_num == 1, !!plane)) < 0)
1291  return ret;
1292  }
1293  if (get_bits_count(&gb) >= bits_count)
1294  break;
1295  }
1296  emms_c();
1297 
1298  if (c->version > 'b') {
1299  av_frame_unref(c->last);
1300  if ((ret = av_frame_ref(c->last, frame)) < 0)
1301  return ret;
1302  }
1303 
1304  *got_frame = 1;
1305 
1306  /* always report that the buffer was completely consumed */
1307  return pkt->size;
1308 }
1309 
1310 /**
1311  * Calculate quantization tables for version b
1312  */
1313 static av_cold void binkb_calc_quant(void)
1314 {
1315  uint8_t inv_bink_scan[64];
1316  static const int s[64]={
1317  1073741824,1489322693,1402911301,1262586814,1073741824, 843633538, 581104888, 296244703,
1318  1489322693,2065749918,1945893874,1751258219,1489322693,1170153332, 806015634, 410903207,
1319  1402911301,1945893874,1832991949,1649649171,1402911301,1102260336, 759250125, 387062357,
1320  1262586814,1751258219,1649649171,1484645031,1262586814, 992008094, 683307060, 348346918,
1321  1073741824,1489322693,1402911301,1262586814,1073741824, 843633538, 581104888, 296244703,
1322  843633538,1170153332,1102260336, 992008094, 843633538, 662838617, 456571181, 232757969,
1323  581104888, 806015634, 759250125, 683307060, 581104888, 456571181, 314491699, 160326478,
1324  296244703, 410903207, 387062357, 348346918, 296244703, 232757969, 160326478, 81733730,
1325  };
1326  int i, j;
1327 #define C (1LL<<30)
1328  for (i = 0; i < 64; i++)
1329  inv_bink_scan[bink_scan[i]] = i;
1330 
1331  for (j = 0; j < 16; j++) {
1332  for (i = 0; i < 64; i++) {
1333  int k = inv_bink_scan[i];
1334  binkb_intra_quant[j][k] = binkb_intra_seed[i] * (int64_t)s[i] *
1335  binkb_num[j]/(binkb_den[j] * (C>>12));
1336  binkb_inter_quant[j][k] = binkb_inter_seed[i] * (int64_t)s[i] *
1337  binkb_num[j]/(binkb_den[j] * (C>>12));
1338  }
1339  }
1340 }
1341 
1343 {
1344  BinkContext * const c = avctx->priv_data;
1345  static VLC_TYPE table[16 * 128][2];
1346  static int binkb_initialised = 0;
1347  int i, ret;
1348  int flags;
1349 
1350  c->version = avctx->codec_tag >> 24;
1351  if (avctx->extradata_size < 4) {
1352  av_log(avctx, AV_LOG_ERROR, "Extradata missing or too short\n");
1353  return AVERROR_INVALIDDATA;
1354  }
1355  flags = AV_RL32(avctx->extradata);
1356  c->has_alpha = flags & BINK_FLAG_ALPHA;
1357  c->swap_planes = c->version >= 'h';
1358  if (!bink_trees[15].table) {
1359  for (i = 0; i < 16; i++) {
1360  const int maxbits = bink_tree_lens[i][15];
1361  bink_trees[i].table = table + i*128;
1362  bink_trees[i].table_allocated = 1 << maxbits;
1363  init_vlc(&bink_trees[i], maxbits, 16,
1364  bink_tree_lens[i], 1, 1,
1366  }
1367  }
1368  c->avctx = avctx;
1369 
1370  if ((ret = av_image_check_size(avctx->width, avctx->height, 0, avctx)) < 0)
1371  return ret;
1372 
1373  c->last = av_frame_alloc();
1374  if (!c->last)
1375  return AVERROR(ENOMEM);
1376 
1378  avctx->color_range = c->version == 'k' ? AVCOL_RANGE_JPEG : AVCOL_RANGE_MPEG;
1379 
1380  ff_blockdsp_init(&c->bdsp, avctx);
1381  ff_hpeldsp_init(&c->hdsp, avctx->flags);
1382  ff_binkdsp_init(&c->binkdsp);
1383 
1384  if ((ret = init_bundles(c)) < 0)
1385  return ret;
1386 
1387  if (c->version == 'b') {
1388  if (!binkb_initialised) {
1389  binkb_calc_quant();
1390  binkb_initialised = 1;
1391  }
1392  }
1393 
1394  return 0;
1395 }
1396 
1398 {
1399  BinkContext * const c = avctx->priv_data;
1400 
1401  av_frame_free(&c->last);
1402 
1403  free_bundles(c);
1404  return 0;
1405 }
1406 
1407 static void flush(AVCodecContext *avctx)
1408 {
1409  BinkContext * const c = avctx->priv_data;
1410 
1411  c->frame_num = 0;
1412 }
1413 
1415  .name = "binkvideo",
1416  .long_name = NULL_IF_CONFIG_SMALL("Bink video"),
1417  .type = AVMEDIA_TYPE_VIDEO,
1418  .id = AV_CODEC_ID_BINKVIDEO,
1419  .priv_data_size = sizeof(BinkContext),
1420  .init = decode_init,
1421  .close = decode_end,
1422  .decode = decode_frame,
1423  .flush = flush,
1424  .capabilities = AV_CODEC_CAP_DR1,
1425  .caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
1426 };
#define FF_CODEC_CAP_INIT_CLEANUP
The codec allows calling the close function for deallocation even if the init function returned a fai...
Definition: internal.h:48
#define NULL
Definition: coverity.c:32
#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
int size
8-bit values for 2-colour pattern fill
Definition: bink.c:48
This structure describes decoded (raw) audio or video data.
Definition: frame.h:300
av_cold void ff_binkdsp_init(BinkDSPContext *c)
Definition: binkdsp.c:153
static const uint8_t bink_tree_bits[16][16]
Definition: binkdata.h:39
#define C
#define CHECK_READ_VAL(gb, b, t)
common check before starting decoding bundle data
Definition: bink.c:319
misc image utilities
static unsigned int get_bits(GetBitContext *s, int n)
Read 1-25 bits.
Definition: get_bits.h:379
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
static void skip_bits_long(GetBitContext *s, int n)
Skips the specified number of bits.
Definition: get_bits.h:291
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:35
void(* clear_block)(int16_t *block)
Definition: blockdsp.h:36
void(* scale_block)(const uint8_t src[64], uint8_t *dst, int linesize)
Definition: binkdsp.h:37
static const uint8_t binkb_den[16]
Definition: binkdata.h:651
enum AVColorRange color_range
MPEG vs JPEG YUV range.
Definition: avcodec.h:1161
static int read_residue(GetBitContext *gb, int16_t block[64], int masks_count)
Read 8x8 block with residue after motion compensation.
Definition: bink.c:754
int size
Definition: packet.h:356
const char * b
Definition: vf_curves.c:116
av_cold void ff_blockdsp_init(BlockDSPContext *c, AVCodecContext *avctx)
Definition: blockdsp.c:60
static void unquantize_dct_coeffs(int32_t block[64], const uint32_t quant[64], int coef_count, int coef_idx[64], const uint8_t *scan)
Definition: bink.c:734
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:736
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
uint8_t run
Definition: svq3.c:209
static AVPacket pkt
#define init_vlc(vlc, nb_bits, nb_codes, bits, bits_wrap, bits_size, codes, codes_wrap, codes_size, flags)
Definition: vlc.h:38
#define blk(i)
Definition: sha.c:185
8x8 block types
Definition: bink.c:75
Tree col_high[16]
trees for decoding high nibble in "colours" data type
Definition: bink.c:126
int stride
Definition: mace.c:144
AVCodec.
Definition: codec.h:190
static void decode(AVCodecContext *dec_ctx, AVPacket *pkt, AVFrame *frame, FILE *outfile)
Definition: decode_audio.c:71
16x16 block types (a subset of 8x8 block types)
Definition: bink.c:76
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
void(* idct_put)(uint8_t *dest, int line_size, int32_t *block)
Definition: binkdsp.h:35
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:567
static int read_patterns(AVCodecContext *avctx, GetBitContext *gb, Bundle *b)
Definition: bink.c:433
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:88
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:190
static int binkb_get_value(BinkContext *c, int bundle_num)
Definition: bink.c:615
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:839
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:92
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:444
#define emms_c()
Definition: internal.h:55
uncoded 8x8 block
Definition: bink.c:143
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
Definition: avcodec.h:627
#define u(width, name, range_min, range_max)
Definition: cbs_h2645.c:262
static AVFrame * frame
const char data[16]
Definition: mxf.c:91
#define height
uint8_t * data
Definition: packet.h:355
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:328
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:206
uint8_t * data
buffer for decoded symbols
Definition: bink.c:105
Bink DSP routines.
#define U(x)
Definition: vp56_arith.h:37
#define src
Definition: vp8dsp.c:254
block is copied from previous frame with some offset
Definition: bink.c:136
static int get_bits_left(GetBitContext *gb)
Definition: get_bits.h:849
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:269
#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
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:203
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:188
int ff_reget_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
Identical in function to ff_get_buffer(), except it reuses the existing buffer if available...
Definition: decode.c:1961
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:606
AVCodec ff_bink_decoder
Definition: bink.c:1414
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:237
const char * name
Name of the codec implementation.
Definition: codec.h:197
uint8_t bits
Definition: vp3data.h:202
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:1313
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:699
static int binkb_decode_plane(BinkContext *c, AVFrame *frame, GetBitContext *gb, int plane_idx, int is_key, int is_chroma)
Definition: bink.c:849
Y components of motion value.
Definition: bink.c:50
void(* idct_add)(uint8_t *dest, int line_size, int32_t *block)
Definition: binkdsp.h:36
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
#define AV_RL32
Definition: intreadwrite.h:146
block has size 16x16
Definition: bink.c:135
static const uint8_t binkb_inter_seed[64]
Definition: binkdata.h:636
#define av_log2
Definition: intmath.h:83
the normal 2^n-1 "JPEG" YUV ranges
Definition: pixfmt.h:535
#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:1017
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:331
void(* add_pixels8)(uint8_t *av_restrict pixels, int16_t *block, int line_size)
Definition: binkdsp.h:38
#define DC_START_BITS
number of bits used to store first DC value in bundle
Definition: bink.c:498
main external API structure.
Definition: avcodec.h:526
unsigned int codec_tag
fourcc (LSB first, so "ABCD" -> (&#39;D&#39;<<24) + (&#39;C&#39;<<16) + (&#39;B&#39;<<8) + &#39;A&#39;).
Definition: avcodec.h:551
int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
Get a buffer for a frame.
Definition: decode.c:1854
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:1342
int extradata_size
Definition: avcodec.h:628
static unsigned int get_bits1(GetBitContext *s)
Definition: get_bits.h:498
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(const int16_t *) pi >> 8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(const int32_t *) pi >> 24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31)))) #define SET_CONV_FUNC_GROUP(ofmt, ifmt) static void set_generic_function(AudioConvert *ac) { } void ff_audio_convert_free(AudioConvert **ac) { if(! *ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);} AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, int sample_rate, int apply_map) { AudioConvert *ac;int in_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) return NULL;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);return NULL;} return ac;} 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;} else if(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;else ac->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);return ac;} int ff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in) { int use_generic=1;int len=in->nb_samples;int p;if(ac->dc) { av_log(ac->avr, AV_LOG_TRACE, "%d samples - audio_convert: %s to %s (dithered)\", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));return ff_convert_dither(ac-> in
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:574
static int32_t binkb_intra_quant[16][64]
Definition: bink.c:68
static int read_dct_coeffs(BinkContext *c, 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:638
static int init_get_bits(GetBitContext *s, const uint8_t *buffer, int bit_size)
Initialize GetBitContext.
Definition: get_bits.h:659
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
static int read_bundle(GetBitContext *gb, BinkContext *c, int bundle_num)
Prepare bundle for decoding data.
Definition: bink.c:289
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:554
Bundle bundle[BINKB_NB_SRC]
bundles for decoding all data types
Definition: bink.c:125
#define flags(name, subs,...)
Definition: cbs_av1.c:565
static void flush(AVCodecContext *avctx)
Definition: bink.c:1407
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:314
pixel values used for different block types
Definition: bink.c:77
AVFrame * last
Definition: bink.c:119
the normal 219*2^(n-8) "MPEG" YUV ranges
Definition: pixfmt.h:534
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
int
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:581
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:455
static int read_block_types(AVCodecContext *avctx, GetBitContext *gb, Bundle *b)
Definition: bink.c:388
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:500
static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *pkt)
Definition: bink.c:1252
DC values for intrablocks with DCT.
Definition: bink.c:51
void * priv_data
Definition: avcodec.h:553
static int read_tree(GetBitContext *gb, Tree *tree)
Read information about Huffman tree used to decode data.
Definition: bink.c:244
static int read_motion_values(AVCodecContext *avctx, GetBitContext *gb, Bundle *b)
Definition: bink.c:352
motion block with some difference added
Definition: bink.c:138
int len
VLC_TYPE(* table)[2]
code, bits
Definition: vlc.h:28
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:999
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:1397
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)
#define VLC_TYPE
Definition: vlc.h:24
#define FFSWAP(type, a, b)
Definition: common.h:99
static const uint8_t bink_rlelens[4]
Definition: bink.c:386
pixel values used for different block types
Definition: bink.c:47
static int get_value(BinkContext *c, int bundle)
Retrieve next value from bundle.
Definition: bink.c:554
static double val(void *priv, double ch)
Definition: aeval.c:76
This structure stores compressed data.
Definition: packet.h:332
#define AV_GET_BUFFER_FLAG_REF
The decoder will keep a reference to the frame and may reuse it later.
Definition: avcodec.h:509
mode
Use these values in ebur128_init (or&#39;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: codec.h:50
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