FFmpeg  4.1.4
ivi.c
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1 /*
2  * common functions for Indeo Video Interactive codecs (Indeo4 and Indeo5)
3  *
4  * Copyright (c) 2009 Maxim Poliakovski
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 /**
24  * @file
25  * This file contains functions and data shared by both Indeo4 and
26  * Indeo5 decoders.
27  */
28 
29 #include <inttypes.h>
30 
31 #include "libavutil/attributes.h"
32 #include "libavutil/imgutils.h"
33 #include "libavutil/timer.h"
34 
35 #define BITSTREAM_READER_LE
36 #include "avcodec.h"
37 #include "get_bits.h"
38 #include "internal.h"
39 #include "mathops.h"
40 #include "ivi.h"
41 #include "ivi_dsp.h"
42 
43 /**
44  * These are 2x8 predefined Huffman codebooks for coding macroblock/block
45  * signals. They are specified using "huffman descriptors" in order to
46  * avoid huge static tables. The decoding tables will be generated at
47  * startup from these descriptors.
48  */
49 /** static macroblock huffman tables */
50 static const IVIHuffDesc ivi_mb_huff_desc[8] = {
51  {8, {0, 4, 5, 4, 4, 4, 6, 6}},
52  {12, {0, 2, 2, 3, 3, 3, 3, 5, 3, 2, 2, 2}},
53  {12, {0, 2, 3, 4, 3, 3, 3, 3, 4, 3, 2, 2}},
54  {12, {0, 3, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2}},
55  {13, {0, 4, 4, 3, 3, 3, 3, 2, 3, 3, 2, 1, 1}},
56  {9, {0, 4, 4, 4, 4, 3, 3, 3, 2}},
57  {10, {0, 4, 4, 4, 4, 3, 3, 2, 2, 2}},
58  {12, {0, 4, 4, 4, 3, 3, 2, 3, 2, 2, 2, 2}}
59 };
60 
61 /** static block huffman tables */
62 static const IVIHuffDesc ivi_blk_huff_desc[8] = {
63  {10, {1, 2, 3, 4, 4, 7, 5, 5, 4, 1}},
64  {11, {2, 3, 4, 4, 4, 7, 5, 4, 3, 3, 2}},
65  {12, {2, 4, 5, 5, 5, 5, 6, 4, 4, 3, 1, 1}},
66  {13, {3, 3, 4, 4, 5, 6, 6, 4, 4, 3, 2, 1, 1}},
67  {11, {3, 4, 4, 5, 5, 5, 6, 5, 4, 2, 2}},
68  {13, {3, 4, 5, 5, 5, 5, 6, 4, 3, 3, 2, 1, 1}},
69  {13, {3, 4, 5, 5, 5, 6, 5, 4, 3, 3, 2, 1, 1}},
70  {9, {3, 4, 4, 5, 5, 5, 6, 5, 5}}
71 };
72 
73 static VLC ivi_mb_vlc_tabs [8]; ///< static macroblock Huffman tables
74 static VLC ivi_blk_vlc_tabs[8]; ///< static block Huffman tables
75 
76 typedef void (*ivi_mc_func) (int16_t *buf, const int16_t *ref_buf,
77  ptrdiff_t pitch, int mc_type);
78 typedef void (*ivi_mc_avg_func) (int16_t *buf, const int16_t *ref_buf1,
79  const int16_t *ref_buf2,
80  ptrdiff_t pitch, int mc_type, int mc_type2);
81 
82 static int ivi_mc(IVIBandDesc *band, ivi_mc_func mc, ivi_mc_avg_func mc_avg,
83  int offs, int mv_x, int mv_y, int mv_x2, int mv_y2,
84  int mc_type, int mc_type2)
85 {
86  int ref_offs = offs + mv_y * band->pitch + mv_x;
87  int buf_size = band->pitch * band->aheight;
88  int min_size = band->pitch * (band->blk_size - 1) + band->blk_size;
89  int ref_size = (mc_type > 1) * band->pitch + (mc_type & 1);
90 
91  if (mc_type != -1) {
92  av_assert0(offs >= 0 && ref_offs >= 0 && band->ref_buf);
93  av_assert0(buf_size - min_size >= offs);
94  av_assert0(buf_size - min_size - ref_size >= ref_offs);
95  }
96 
97  if (mc_type2 == -1) {
98  mc(band->buf + offs, band->ref_buf + ref_offs, band->pitch, mc_type);
99  } else {
100  int ref_offs2 = offs + mv_y2 * band->pitch + mv_x2;
101  int ref_size2 = (mc_type2 > 1) * band->pitch + (mc_type2 & 1);
102  if (offs < 0 || ref_offs2 < 0 || !band->b_ref_buf)
103  return AVERROR_INVALIDDATA;
104  if (buf_size - min_size - ref_size2 < ref_offs2)
105  return AVERROR_INVALIDDATA;
106 
107  if (mc_type == -1)
108  mc(band->buf + offs, band->b_ref_buf + ref_offs2,
109  band->pitch, mc_type2);
110  else
111  mc_avg(band->buf + offs, band->ref_buf + ref_offs,
112  band->b_ref_buf + ref_offs2, band->pitch,
113  mc_type, mc_type2);
114  }
115 
116  return 0;
117 }
118 
119 /**
120  * Reverse "nbits" bits of the value "val" and return the result
121  * in the least significant bits.
122  */
123 static uint16_t inv_bits(uint16_t val, int nbits)
124 {
125  uint16_t res;
126 
127  if (nbits <= 8) {
128  res = ff_reverse[val] >> (8 - nbits);
129  } else
130  res = ((ff_reverse[val & 0xFF] << 8) +
131  (ff_reverse[val >> 8])) >> (16 - nbits);
132 
133  return res;
134 }
135 
136 /*
137  * Generate a huffman codebook from the given descriptor
138  * and convert it into the FFmpeg VLC table.
139  *
140  * @param[in] cb pointer to codebook descriptor
141  * @param[out] vlc where to place the generated VLC table
142  * @param[in] flag flag: 1 - for static or 0 for dynamic tables
143  * @return result code: 0 - OK, -1 = error (invalid codebook descriptor)
144  */
145 static int ivi_create_huff_from_desc(const IVIHuffDesc *cb, VLC *vlc, int flag)
146 {
147  int pos, i, j, codes_per_row, prefix, not_last_row;
148  uint16_t codewords[256]; /* FIXME: move this temporal storage out? */
149  uint8_t bits[256];
150 
151  pos = 0; /* current position = 0 */
152 
153  for (i = 0; i < cb->num_rows; i++) {
154  codes_per_row = 1 << cb->xbits[i];
155  not_last_row = (i != cb->num_rows - 1);
156  prefix = ((1 << i) - 1) << (cb->xbits[i] + not_last_row);
157 
158  for (j = 0; j < codes_per_row; j++) {
159  if (pos >= 256) /* Some Indeo5 codebooks can have more than 256 */
160  break; /* elements, but only 256 codes are allowed! */
161 
162  bits[pos] = i + cb->xbits[i] + not_last_row;
163  if (bits[pos] > IVI_VLC_BITS)
164  return AVERROR_INVALIDDATA; /* invalid descriptor */
165 
166  codewords[pos] = inv_bits((prefix | j), bits[pos]);
167  if (!bits[pos])
168  bits[pos] = 1;
169 
170  pos++;
171  }//for j
172  }//for i
173 
174  /* number of codewords = pos */
175  return init_vlc(vlc, IVI_VLC_BITS, pos, bits, 1, 1, codewords, 2, 2,
176  (flag ? INIT_VLC_USE_NEW_STATIC : 0) | INIT_VLC_LE);
177 }
178 
180 {
181  int i;
182  static VLC_TYPE table_data[8192 * 16][2];
183  static int initialized_vlcs = 0;
184 
185  if (initialized_vlcs)
186  return;
187  for (i = 0; i < 8; i++) {
188  ivi_mb_vlc_tabs[i].table = table_data + i * 2 * 8192;
189  ivi_mb_vlc_tabs[i].table_allocated = 8192;
190  ivi_create_huff_from_desc(&ivi_mb_huff_desc[i],
191  &ivi_mb_vlc_tabs[i], 1);
192  ivi_blk_vlc_tabs[i].table = table_data + (i * 2 + 1) * 8192;
193  ivi_blk_vlc_tabs[i].table_allocated = 8192;
194  ivi_create_huff_from_desc(&ivi_blk_huff_desc[i],
195  &ivi_blk_vlc_tabs[i], 1);
196  }
197  initialized_vlcs = 1;
198 }
199 
200 /*
201  * Copy huffman codebook descriptors.
202  *
203  * @param[out] dst ptr to the destination descriptor
204  * @param[in] src ptr to the source descriptor
205  */
207 {
208  dst->num_rows = src->num_rows;
209  memcpy(dst->xbits, src->xbits, src->num_rows);
210 }
211 
212 /*
213  * Compare two huffman codebook descriptors.
214  *
215  * @param[in] desc1 ptr to the 1st descriptor to compare
216  * @param[in] desc2 ptr to the 2nd descriptor to compare
217  * @return comparison result: 0 - equal, 1 - not equal
218  */
219 static int ivi_huff_desc_cmp(const IVIHuffDesc *desc1,
220  const IVIHuffDesc *desc2)
221 {
222  return desc1->num_rows != desc2->num_rows ||
223  memcmp(desc1->xbits, desc2->xbits, desc1->num_rows);
224 }
225 
226 int ff_ivi_dec_huff_desc(GetBitContext *gb, int desc_coded, int which_tab,
227  IVIHuffTab *huff_tab, AVCodecContext *avctx)
228 {
229  int i, result;
230  IVIHuffDesc new_huff;
231 
232  if (!desc_coded) {
233  /* select default table */
234  huff_tab->tab = (which_tab) ? &ivi_blk_vlc_tabs[7]
235  : &ivi_mb_vlc_tabs [7];
236  return 0;
237  }
238 
239  huff_tab->tab_sel = get_bits(gb, 3);
240  if (huff_tab->tab_sel == 7) {
241  /* custom huffman table (explicitly encoded) */
242  new_huff.num_rows = get_bits(gb, 4);
243  if (!new_huff.num_rows) {
244  av_log(avctx, AV_LOG_ERROR, "Empty custom Huffman table!\n");
245  return AVERROR_INVALIDDATA;
246  }
247 
248  for (i = 0; i < new_huff.num_rows; i++)
249  new_huff.xbits[i] = get_bits(gb, 4);
250 
251  /* Have we got the same custom table? Rebuild if not. */
252  if (ivi_huff_desc_cmp(&new_huff, &huff_tab->cust_desc) || !huff_tab->cust_tab.table) {
253  ivi_huff_desc_copy(&huff_tab->cust_desc, &new_huff);
254 
255  if (huff_tab->cust_tab.table)
256  ff_free_vlc(&huff_tab->cust_tab);
257  result = ivi_create_huff_from_desc(&huff_tab->cust_desc,
258  &huff_tab->cust_tab, 0);
259  if (result) {
260  // reset faulty description
261  huff_tab->cust_desc.num_rows = 0;
262  av_log(avctx, AV_LOG_ERROR,
263  "Error while initializing custom vlc table!\n");
264  return result;
265  }
266  }
267  huff_tab->tab = &huff_tab->cust_tab;
268  } else {
269  /* select one of predefined tables */
270  huff_tab->tab = (which_tab) ? &ivi_blk_vlc_tabs[huff_tab->tab_sel]
271  : &ivi_mb_vlc_tabs [huff_tab->tab_sel];
272  }
273 
274  return 0;
275 }
276 
277 /*
278  * Free planes, bands and macroblocks buffers.
279  *
280  * @param[in] planes pointer to the array of the plane descriptors
281  */
283 {
284  int p, b, t;
285 
286  for (p = 0; p < 3; p++) {
287  if (planes[p].bands)
288  for (b = 0; b < planes[p].num_bands; b++) {
289  av_freep(&planes[p].bands[b].bufs[0]);
290  av_freep(&planes[p].bands[b].bufs[1]);
291  av_freep(&planes[p].bands[b].bufs[2]);
292  av_freep(&planes[p].bands[b].bufs[3]);
293 
294  if (planes[p].bands[b].blk_vlc.cust_tab.table)
295  ff_free_vlc(&planes[p].bands[b].blk_vlc.cust_tab);
296  for (t = 0; t < planes[p].bands[b].num_tiles; t++)
297  av_freep(&planes[p].bands[b].tiles[t].mbs);
298  av_freep(&planes[p].bands[b].tiles);
299  }
300  av_freep(&planes[p].bands);
301  planes[p].num_bands = 0;
302  }
303 }
304 
306  int is_indeo4)
307 {
308  int p, b;
309  uint32_t b_width, b_height, align_fac, width_aligned,
310  height_aligned, buf_size;
311  IVIBandDesc *band;
312 
313  ivi_free_buffers(planes);
314 
315  if (av_image_check_size2(cfg->pic_width, cfg->pic_height, avctx->max_pixels, AV_PIX_FMT_YUV410P, 0, avctx) < 0 ||
316  cfg->luma_bands < 1 || cfg->chroma_bands < 1)
317  return AVERROR_INVALIDDATA;
318 
319  /* fill in the descriptor of the luminance plane */
320  planes[0].width = cfg->pic_width;
321  planes[0].height = cfg->pic_height;
322  planes[0].num_bands = cfg->luma_bands;
323 
324  /* fill in the descriptors of the chrominance planes */
325  planes[1].width = planes[2].width = (cfg->pic_width + 3) >> 2;
326  planes[1].height = planes[2].height = (cfg->pic_height + 3) >> 2;
327  planes[1].num_bands = planes[2].num_bands = cfg->chroma_bands;
328 
329  for (p = 0; p < 3; p++) {
330  planes[p].bands = av_mallocz_array(planes[p].num_bands, sizeof(IVIBandDesc));
331  if (!planes[p].bands)
332  return AVERROR(ENOMEM);
333 
334  /* select band dimensions: if there is only one band then it
335  * has the full size, if there are several bands each of them
336  * has only half size */
337  b_width = planes[p].num_bands == 1 ? planes[p].width
338  : (planes[p].width + 1) >> 1;
339  b_height = planes[p].num_bands == 1 ? planes[p].height
340  : (planes[p].height + 1) >> 1;
341 
342  /* luma band buffers will be aligned on 16x16 (max macroblock size) */
343  /* chroma band buffers will be aligned on 8x8 (max macroblock size) */
344  align_fac = p ? 8 : 16;
345  width_aligned = FFALIGN(b_width , align_fac);
346  height_aligned = FFALIGN(b_height, align_fac);
347  buf_size = width_aligned * height_aligned * sizeof(int16_t);
348 
349  for (b = 0; b < planes[p].num_bands; b++) {
350  band = &planes[p].bands[b]; /* select appropriate plane/band */
351  band->plane = p;
352  band->band_num = b;
353  band->width = b_width;
354  band->height = b_height;
355  band->pitch = width_aligned;
356  band->aheight = height_aligned;
357  band->bufs[0] = av_mallocz(buf_size);
358  band->bufs[1] = av_mallocz(buf_size);
359  band->bufsize = buf_size/2;
360  if (!band->bufs[0] || !band->bufs[1])
361  return AVERROR(ENOMEM);
362 
363  /* allocate the 3rd band buffer for scalability mode */
364  if (cfg->luma_bands > 1) {
365  band->bufs[2] = av_mallocz(buf_size);
366  if (!band->bufs[2])
367  return AVERROR(ENOMEM);
368  }
369  if (is_indeo4) {
370  band->bufs[3] = av_mallocz(buf_size);
371  if (!band->bufs[3])
372  return AVERROR(ENOMEM);
373  }
374  /* reset custom vlc */
375  planes[p].bands[0].blk_vlc.cust_desc.num_rows = 0;
376  }
377  }
378 
379  return 0;
380 }
381 
382 static int ivi_init_tiles(IVIBandDesc *band, IVITile *ref_tile,
383  int p, int b, int t_height, int t_width)
384 {
385  int x, y;
386  IVITile *tile = band->tiles;
387 
388  for (y = 0; y < band->height; y += t_height) {
389  for (x = 0; x < band->width; x += t_width) {
390  tile->xpos = x;
391  tile->ypos = y;
392  tile->mb_size = band->mb_size;
393  tile->width = FFMIN(band->width - x, t_width);
394  tile->height = FFMIN(band->height - y, t_height);
395  tile->is_empty = tile->data_size = 0;
396  /* calculate number of macroblocks */
397  tile->num_MBs = IVI_MBs_PER_TILE(tile->width, tile->height,
398  band->mb_size);
399 
400  av_freep(&tile->mbs);
401  tile->mbs = av_mallocz_array(tile->num_MBs, sizeof(IVIMbInfo));
402  if (!tile->mbs)
403  return AVERROR(ENOMEM);
404 
405  tile->ref_mbs = 0;
406  if (p || b) {
407  if (tile->num_MBs != ref_tile->num_MBs) {
408  av_log(NULL, AV_LOG_DEBUG, "ref_tile mismatch\n");
409  return AVERROR_INVALIDDATA;
410  }
411  tile->ref_mbs = ref_tile->mbs;
412  ref_tile++;
413  }
414  tile++;
415  }
416  }
417 
418  return 0;
419 }
420 
422  int tile_width, int tile_height)
423 {
424  int p, b, x_tiles, y_tiles, t_width, t_height, ret;
425  IVIBandDesc *band;
426 
427  for (p = 0; p < 3; p++) {
428  t_width = !p ? tile_width : (tile_width + 3) >> 2;
429  t_height = !p ? tile_height : (tile_height + 3) >> 2;
430 
431  if (!p && planes[0].num_bands == 4) {
432  t_width >>= 1;
433  t_height >>= 1;
434  }
435  if(t_width<=0 || t_height<=0)
436  return AVERROR(EINVAL);
437 
438  for (b = 0; b < planes[p].num_bands; b++) {
439  band = &planes[p].bands[b];
440  x_tiles = IVI_NUM_TILES(band->width, t_width);
441  y_tiles = IVI_NUM_TILES(band->height, t_height);
442  band->num_tiles = x_tiles * y_tiles;
443 
444  av_freep(&band->tiles);
445  band->tiles = av_mallocz_array(band->num_tiles, sizeof(IVITile));
446  if (!band->tiles)
447  return AVERROR(ENOMEM);
448 
449  /* use the first luma band as reference for motion vectors
450  * and quant */
451  ret = ivi_init_tiles(band, planes[0].bands[0].tiles,
452  p, b, t_height, t_width);
453  if (ret < 0)
454  return ret;
455  }
456  }
457 
458  return 0;
459 }
460 
461 /*
462  * Decode size of the tile data.
463  * The size is stored as a variable-length field having the following format:
464  * if (tile_data_size < 255) than this field is only one byte long
465  * if (tile_data_size >= 255) than this field four is byte long: 0xFF X1 X2 X3
466  * where X1-X3 is size of the tile data
467  *
468  * @param[in,out] gb the GetBit context
469  * @return size of the tile data in bytes
470  */
472 {
473  int len;
474 
475  len = 0;
476  if (get_bits1(gb)) {
477  len = get_bits(gb, 8);
478  if (len == 255)
479  len = get_bits_long(gb, 24);
480  }
481 
482  /* align the bitstream reader on the byte boundary */
483  align_get_bits(gb);
484 
485  return len;
486 }
487 
488 static int ivi_dc_transform(IVIBandDesc *band, int *prev_dc, int buf_offs,
489  int blk_size)
490 {
491  band->dc_transform(prev_dc, band->buf + buf_offs,
492  band->pitch, blk_size);
493 
494  return 0;
495 }
496 
499  int mv_x, int mv_y,
500  int mv_x2, int mv_y2,
501  int *prev_dc, int is_intra,
502  int mc_type, int mc_type2,
503  uint32_t quant, int offs,
504  AVCodecContext *avctx)
505 {
506  const uint16_t *base_tab = is_intra ? band->intra_base : band->inter_base;
507  RVMapDesc *rvmap = band->rv_map;
508  uint8_t col_flags[8];
509  int32_t trvec[64];
510  uint32_t sym = 0, lo, hi, q;
511  int pos, run, val;
512  int blk_size = band->blk_size;
513  int num_coeffs = blk_size * blk_size;
514  int col_mask = blk_size - 1;
515  int scan_pos = -1;
516  int min_size = band->pitch * (band->transform_size - 1) +
517  band->transform_size;
518  int buf_size = band->pitch * band->aheight - offs;
519 
520  if (min_size > buf_size)
521  return AVERROR_INVALIDDATA;
522 
523  if (!band->scan) {
524  av_log(avctx, AV_LOG_ERROR, "Scan pattern is not set.\n");
525  return AVERROR_INVALIDDATA;
526  }
527 
528  /* zero transform vector */
529  memset(trvec, 0, num_coeffs * sizeof(trvec[0]));
530  /* zero column flags */
531  memset(col_flags, 0, sizeof(col_flags));
532  while (scan_pos <= num_coeffs) {
533  sym = get_vlc2(gb, band->blk_vlc.tab->table,
534  IVI_VLC_BITS, 1);
535  if (sym == rvmap->eob_sym)
536  break; /* End of block */
537 
538  /* Escape - run/val explicitly coded using 3 vlc codes */
539  if (sym == rvmap->esc_sym) {
540  run = get_vlc2(gb, band->blk_vlc.tab->table, IVI_VLC_BITS, 1) + 1;
541  lo = get_vlc2(gb, band->blk_vlc.tab->table, IVI_VLC_BITS, 1);
542  hi = get_vlc2(gb, band->blk_vlc.tab->table, IVI_VLC_BITS, 1);
543  /* merge them and convert into signed val */
544  val = IVI_TOSIGNED((hi << 6) | lo);
545  } else {
546  if (sym >= 256U) {
547  av_log(avctx, AV_LOG_ERROR, "Invalid sym encountered: %"PRIu32".\n", sym);
548  return AVERROR_INVALIDDATA;
549  }
550  run = rvmap->runtab[sym];
551  val = rvmap->valtab[sym];
552  }
553 
554  /* de-zigzag and dequantize */
555  scan_pos += run;
556  if (scan_pos >= num_coeffs || scan_pos < 0)
557  break;
558  pos = band->scan[scan_pos];
559 
560  if (!val)
561  ff_dlog(avctx, "Val = 0 encountered!\n");
562 
563  q = (base_tab[pos] * quant) >> 9;
564  if (q > 1)
565  val = val * q + FFSIGN(val) * (((q ^ 1) - 1) >> 1);
566  trvec[pos] = val;
567  /* track columns containing non-zero coeffs */
568  col_flags[pos & col_mask] |= !!val;
569  }
570 
571  if (scan_pos < 0 || scan_pos >= num_coeffs && sym != rvmap->eob_sym)
572  return AVERROR_INVALIDDATA; /* corrupt block data */
573 
574  /* undoing DC coeff prediction for intra-blocks */
575  if (is_intra && band->is_2d_trans) {
576  *prev_dc += trvec[0];
577  trvec[0] = *prev_dc;
578  col_flags[0] |= !!*prev_dc;
579  }
580 
581  if(band->transform_size > band->blk_size){
582  av_log(NULL, AV_LOG_ERROR, "Too large transform\n");
583  return AVERROR_INVALIDDATA;
584  }
585 
586  /* apply inverse transform */
587  band->inv_transform(trvec, band->buf + offs,
588  band->pitch, col_flags);
589 
590  /* apply motion compensation */
591  if (!is_intra)
592  return ivi_mc(band, mc, mc_avg, offs, mv_x, mv_y, mv_x2, mv_y2,
593  mc_type, mc_type2);
594 
595  return 0;
596 }
597 /*
598  * Decode block data:
599  * extract huffman-coded transform coefficients from the bitstream,
600  * dequantize them, apply inverse transform and motion compensation
601  * in order to reconstruct the picture.
602  *
603  * @param[in,out] gb the GetBit context
604  * @param[in] band pointer to the band descriptor
605  * @param[in] tile pointer to the tile descriptor
606  * @return result code: 0 - OK, -1 = error (corrupted blocks data)
607  */
609  IVITile *tile, AVCodecContext *avctx)
610 {
611  int mbn, blk, num_blocks, blk_size, ret, is_intra;
612  int mc_type = 0, mc_type2 = -1;
613  int mv_x = 0, mv_y = 0, mv_x2 = 0, mv_y2 = 0;
614  int32_t prev_dc;
615  uint32_t cbp, quant, buf_offs;
616  IVIMbInfo *mb;
617  ivi_mc_func mc_with_delta_func, mc_no_delta_func;
618  ivi_mc_avg_func mc_avg_with_delta_func, mc_avg_no_delta_func;
619  const uint8_t *scale_tab;
620 
621  /* init intra prediction for the DC coefficient */
622  prev_dc = 0;
623  blk_size = band->blk_size;
624  /* number of blocks per mb */
625  num_blocks = (band->mb_size != blk_size) ? 4 : 1;
626  if (blk_size == 8) {
627  mc_with_delta_func = ff_ivi_mc_8x8_delta;
628  mc_no_delta_func = ff_ivi_mc_8x8_no_delta;
629  mc_avg_with_delta_func = ff_ivi_mc_avg_8x8_delta;
630  mc_avg_no_delta_func = ff_ivi_mc_avg_8x8_no_delta;
631  } else {
632  mc_with_delta_func = ff_ivi_mc_4x4_delta;
633  mc_no_delta_func = ff_ivi_mc_4x4_no_delta;
634  mc_avg_with_delta_func = ff_ivi_mc_avg_4x4_delta;
635  mc_avg_no_delta_func = ff_ivi_mc_avg_4x4_no_delta;
636  }
637 
638  for (mbn = 0, mb = tile->mbs; mbn < tile->num_MBs; mb++, mbn++) {
639  is_intra = !mb->type;
640  cbp = mb->cbp;
641  buf_offs = mb->buf_offs;
642 
643  quant = band->glob_quant + mb->q_delta;
644  if (avctx->codec_id == AV_CODEC_ID_INDEO4)
645  quant = av_clip_uintp2(quant, 5);
646  else
647  quant = av_clip(quant, 0, 23);
648 
649  scale_tab = is_intra ? band->intra_scale : band->inter_scale;
650  if (scale_tab)
651  quant = scale_tab[quant];
652 
653  if (!is_intra) {
654  mv_x = mb->mv_x;
655  mv_y = mb->mv_y;
656  mv_x2 = mb->b_mv_x;
657  mv_y2 = mb->b_mv_y;
658  if (band->is_halfpel) {
659  mc_type = ((mv_y & 1) << 1) | (mv_x & 1);
660  mc_type2 = ((mv_y2 & 1) << 1) | (mv_x2 & 1);
661  mv_x >>= 1;
662  mv_y >>= 1;
663  mv_x2 >>= 1;
664  mv_y2 >>= 1; /* convert halfpel vectors into fullpel ones */
665  }
666  if (mb->type == 2)
667  mc_type = -1;
668  if (mb->type != 2 && mb->type != 3)
669  mc_type2 = -1;
670  if (mb->type) {
671  int dmv_x, dmv_y, cx, cy;
672 
673  dmv_x = mb->mv_x >> band->is_halfpel;
674  dmv_y = mb->mv_y >> band->is_halfpel;
675  cx = mb->mv_x & band->is_halfpel;
676  cy = mb->mv_y & band->is_halfpel;
677 
678  if (mb->xpos + dmv_x < 0 ||
679  mb->xpos + dmv_x + band->mb_size + cx > band->pitch ||
680  mb->ypos + dmv_y < 0 ||
681  mb->ypos + dmv_y + band->mb_size + cy > band->aheight) {
682  return AVERROR_INVALIDDATA;
683  }
684  }
685  if (mb->type == 2 || mb->type == 3) {
686  int dmv_x, dmv_y, cx, cy;
687 
688  dmv_x = mb->b_mv_x >> band->is_halfpel;
689  dmv_y = mb->b_mv_y >> band->is_halfpel;
690  cx = mb->b_mv_x & band->is_halfpel;
691  cy = mb->b_mv_y & band->is_halfpel;
692 
693  if (mb->xpos + dmv_x < 0 ||
694  mb->xpos + dmv_x + band->mb_size + cx > band->pitch ||
695  mb->ypos + dmv_y < 0 ||
696  mb->ypos + dmv_y + band->mb_size + cy > band->aheight) {
697  return AVERROR_INVALIDDATA;
698  }
699  }
700  }
701 
702  for (blk = 0; blk < num_blocks; blk++) {
703  /* adjust block position in the buffer according to its number */
704  if (blk & 1) {
705  buf_offs += blk_size;
706  } else if (blk == 2) {
707  buf_offs -= blk_size;
708  buf_offs += blk_size * band->pitch;
709  }
710 
711  if (cbp & 1) { /* block coded ? */
712  ret = ivi_decode_coded_blocks(gb, band, mc_with_delta_func,
713  mc_avg_with_delta_func,
714  mv_x, mv_y, mv_x2, mv_y2,
715  &prev_dc, is_intra,
716  mc_type, mc_type2, quant,
717  buf_offs, avctx);
718  if (ret < 0)
719  return ret;
720  } else {
721  int buf_size = band->pitch * band->aheight - buf_offs;
722  int min_size = (blk_size - 1) * band->pitch + blk_size;
723 
724  if (min_size > buf_size)
725  return AVERROR_INVALIDDATA;
726  /* block not coded */
727  /* for intra blocks apply the dc slant transform */
728  /* for inter - perform the motion compensation without delta */
729  if (is_intra) {
730  ret = ivi_dc_transform(band, &prev_dc, buf_offs, blk_size);
731  if (ret < 0)
732  return ret;
733  } else {
734  ret = ivi_mc(band, mc_no_delta_func, mc_avg_no_delta_func,
735  buf_offs, mv_x, mv_y, mv_x2, mv_y2,
736  mc_type, mc_type2);
737  if (ret < 0)
738  return ret;
739  }
740  }
741 
742  cbp >>= 1;
743  }// for blk
744  }// for mbn
745 
746  align_get_bits(gb);
747 
748  return 0;
749 }
750 
751 /**
752  * Handle empty tiles by performing data copying and motion
753  * compensation respectively.
754  *
755  * @param[in] avctx ptr to the AVCodecContext
756  * @param[in] band pointer to the band descriptor
757  * @param[in] tile pointer to the tile descriptor
758  * @param[in] mv_scale scaling factor for motion vectors
759  */
761  IVITile *tile, int32_t mv_scale)
762 {
763  int x, y, need_mc, mbn, blk, num_blocks, mv_x, mv_y, mc_type;
764  int offs, mb_offset, row_offset, ret;
765  IVIMbInfo *mb, *ref_mb;
766  const int16_t *src;
767  int16_t *dst;
768  ivi_mc_func mc_no_delta_func;
769 
770  if (tile->num_MBs != IVI_MBs_PER_TILE(tile->width, tile->height, band->mb_size)) {
771  av_log(avctx, AV_LOG_ERROR, "Allocated tile size %d mismatches "
772  "parameters %d in ivi_process_empty_tile()\n",
773  tile->num_MBs, IVI_MBs_PER_TILE(tile->width, tile->height, band->mb_size));
774  return AVERROR_INVALIDDATA;
775  }
776 
777  offs = tile->ypos * band->pitch + tile->xpos;
778  mb = tile->mbs;
779  ref_mb = tile->ref_mbs;
780  row_offset = band->mb_size * band->pitch;
781  need_mc = 0; /* reset the mc tracking flag */
782 
783  for (y = tile->ypos; y < (tile->ypos + tile->height); y += band->mb_size) {
784  mb_offset = offs;
785 
786  for (x = tile->xpos; x < (tile->xpos + tile->width); x += band->mb_size) {
787  mb->xpos = x;
788  mb->ypos = y;
789  mb->buf_offs = mb_offset;
790 
791  mb->type = 1; /* set the macroblocks type = INTER */
792  mb->cbp = 0; /* all blocks are empty */
793 
794  if (!band->qdelta_present && !band->plane && !band->band_num) {
795  mb->q_delta = band->glob_quant;
796  mb->mv_x = 0;
797  mb->mv_y = 0;
798  }
799 
800  if (band->inherit_qdelta && ref_mb)
801  mb->q_delta = ref_mb->q_delta;
802 
803  if (band->inherit_mv && ref_mb) {
804  /* motion vector inheritance */
805  if (mv_scale) {
806  mb->mv_x = ivi_scale_mv(ref_mb->mv_x, mv_scale);
807  mb->mv_y = ivi_scale_mv(ref_mb->mv_y, mv_scale);
808  } else {
809  mb->mv_x = ref_mb->mv_x;
810  mb->mv_y = ref_mb->mv_y;
811  }
812  need_mc |= mb->mv_x || mb->mv_y; /* tracking non-zero motion vectors */
813  {
814  int dmv_x, dmv_y, cx, cy;
815 
816  dmv_x = mb->mv_x >> band->is_halfpel;
817  dmv_y = mb->mv_y >> band->is_halfpel;
818  cx = mb->mv_x & band->is_halfpel;
819  cy = mb->mv_y & band->is_halfpel;
820 
821  if ( mb->xpos + dmv_x < 0
822  || mb->xpos + dmv_x + band->mb_size + cx > band->pitch
823  || mb->ypos + dmv_y < 0
824  || mb->ypos + dmv_y + band->mb_size + cy > band->aheight) {
825  av_log(avctx, AV_LOG_ERROR, "MV out of bounds\n");
826  return AVERROR_INVALIDDATA;
827  }
828  }
829  }
830 
831  mb++;
832  if (ref_mb)
833  ref_mb++;
834  mb_offset += band->mb_size;
835  } // for x
836  offs += row_offset;
837  } // for y
838 
839  if (band->inherit_mv && need_mc) { /* apply motion compensation if there is at least one non-zero motion vector */
840  num_blocks = (band->mb_size != band->blk_size) ? 4 : 1; /* number of blocks per mb */
841  mc_no_delta_func = (band->blk_size == 8) ? ff_ivi_mc_8x8_no_delta
843 
844  for (mbn = 0, mb = tile->mbs; mbn < tile->num_MBs; mb++, mbn++) {
845  mv_x = mb->mv_x;
846  mv_y = mb->mv_y;
847  if (!band->is_halfpel) {
848  mc_type = 0; /* we have only fullpel vectors */
849  } else {
850  mc_type = ((mv_y & 1) << 1) | (mv_x & 1);
851  mv_x >>= 1;
852  mv_y >>= 1; /* convert halfpel vectors into fullpel ones */
853  }
854 
855  for (blk = 0; blk < num_blocks; blk++) {
856  /* adjust block position in the buffer according with its number */
857  offs = mb->buf_offs + band->blk_size * ((blk & 1) + !!(blk & 2) * band->pitch);
858  ret = ivi_mc(band, mc_no_delta_func, 0, offs,
859  mv_x, mv_y, 0, 0, mc_type, -1);
860  if (ret < 0)
861  return ret;
862  }
863  }
864  } else {
865  /* copy data from the reference tile into the current one */
866  src = band->ref_buf + tile->ypos * band->pitch + tile->xpos;
867  dst = band->buf + tile->ypos * band->pitch + tile->xpos;
868  for (y = 0; y < tile->height; y++) {
869  memcpy(dst, src, tile->width*sizeof(band->buf[0]));
870  src += band->pitch;
871  dst += band->pitch;
872  }
873  }
874 
875  return 0;
876 }
877 
878 
879 #ifdef DEBUG
880 static uint16_t ivi_calc_band_checksum(IVIBandDesc *band)
881 {
882  int x, y;
883  int16_t *src, checksum;
884 
885  src = band->buf;
886  checksum = 0;
887 
888  for (y = 0; y < band->height; src += band->pitch, y++)
889  for (x = 0; x < band->width; x++)
890  checksum += src[x];
891 
892  return checksum;
893 }
894 #endif
895 
896 /*
897  * Convert and output the current plane.
898  * This conversion is done by adding back the bias value of 128
899  * (subtracted in the encoder) and clipping the result.
900  *
901  * @param[in] plane pointer to the descriptor of the plane being processed
902  * @param[out] dst pointer to the buffer receiving converted pixels
903  * @param[in] dst_pitch pitch for moving to the next y line
904  */
905 static void ivi_output_plane(IVIPlaneDesc *plane, uint8_t *dst, ptrdiff_t dst_pitch)
906 {
907  int x, y;
908  const int16_t *src = plane->bands[0].buf;
909  ptrdiff_t pitch = plane->bands[0].pitch;
910 
911  if (!src)
912  return;
913 
914  for (y = 0; y < plane->height; y++) {
915  int m = 0;
916  int w = plane->width;
917  for (x = 0; x < w; x++) {
918  int t = src[x] + 128;
919  dst[x] = t;
920  m |= t;
921  }
922  if (m & ~255)
923  for (x = 0; x < w; x++)
924  dst[x] = av_clip_uint8(src[x] + 128);
925  src += pitch;
926  dst += dst_pitch;
927  }
928 }
929 
930 /**
931  * Decode an Indeo 4 or 5 band.
932  *
933  * @param[in,out] ctx ptr to the decoder context
934  * @param[in,out] band ptr to the band descriptor
935  * @param[in] avctx ptr to the AVCodecContext
936  * @return result code: 0 = OK, -1 = error
937  */
939  IVIBandDesc *band, AVCodecContext *avctx)
940 {
941  int result, i, t, idx1, idx2, pos;
942  IVITile *tile;
943 
944  band->buf = band->bufs[ctx->dst_buf];
945  if (!band->buf) {
946  av_log(avctx, AV_LOG_ERROR, "Band buffer points to no data!\n");
947  return AVERROR_INVALIDDATA;
948  }
949  if (ctx->is_indeo4 && ctx->frame_type == IVI4_FRAMETYPE_BIDIR) {
950  band->ref_buf = band->bufs[ctx->b_ref_buf];
951  band->b_ref_buf = band->bufs[ctx->ref_buf];
952  } else {
953  band->ref_buf = band->bufs[ctx->ref_buf];
954  band->b_ref_buf = 0;
955  }
956  band->data_ptr = ctx->frame_data + (get_bits_count(&ctx->gb) >> 3);
957 
958  result = ctx->decode_band_hdr(ctx, band, avctx);
959  if (result) {
960  av_log(avctx, AV_LOG_ERROR, "Error while decoding band header: %d\n",
961  result);
962  return result;
963  }
964 
965  if (band->is_empty) {
966  av_log(avctx, AV_LOG_ERROR, "Empty band encountered!\n");
967  return AVERROR_INVALIDDATA;
968  }
969 
970  band->rv_map = &ctx->rvmap_tabs[band->rvmap_sel];
971 
972  /* apply corrections to the selected rvmap table if present */
973  for (i = 0; i < band->num_corr; i++) {
974  idx1 = band->corr[i * 2];
975  idx2 = band->corr[i * 2 + 1];
976  FFSWAP(uint8_t, band->rv_map->runtab[idx1], band->rv_map->runtab[idx2]);
977  FFSWAP(int16_t, band->rv_map->valtab[idx1], band->rv_map->valtab[idx2]);
978  if (idx1 == band->rv_map->eob_sym || idx2 == band->rv_map->eob_sym)
979  band->rv_map->eob_sym ^= idx1 ^ idx2;
980  if (idx1 == band->rv_map->esc_sym || idx2 == band->rv_map->esc_sym)
981  band->rv_map->esc_sym ^= idx1 ^ idx2;
982  }
983 
984  pos = get_bits_count(&ctx->gb);
985 
986  for (t = 0; t < band->num_tiles; t++) {
987  tile = &band->tiles[t];
988 
989  if (tile->mb_size != band->mb_size) {
990  av_log(avctx, AV_LOG_ERROR, "MB sizes mismatch: %d vs. %d\n",
991  band->mb_size, tile->mb_size);
992  return AVERROR_INVALIDDATA;
993  }
994  tile->is_empty = get_bits1(&ctx->gb);
995  if (tile->is_empty) {
996  result = ivi_process_empty_tile(avctx, band, tile,
997  (ctx->planes[0].bands[0].mb_size >> 3) - (band->mb_size >> 3));
998  if (result < 0)
999  break;
1000  ff_dlog(avctx, "Empty tile encountered!\n");
1001  } else {
1002  tile->data_size = ivi_dec_tile_data_size(&ctx->gb);
1003  if (!tile->data_size) {
1004  av_log(avctx, AV_LOG_ERROR, "Tile data size is zero!\n");
1005  result = AVERROR_INVALIDDATA;
1006  break;
1007  }
1008 
1009  result = ctx->decode_mb_info(ctx, band, tile, avctx);
1010  if (result < 0)
1011  break;
1012 
1013  result = ivi_decode_blocks(&ctx->gb, band, tile, avctx);
1014  if (result < 0) {
1015  av_log(avctx, AV_LOG_ERROR,
1016  "Corrupted tile data encountered!\n");
1017  break;
1018  }
1019 
1020  if (((get_bits_count(&ctx->gb) - pos) >> 3) != tile->data_size) {
1021  av_log(avctx, AV_LOG_ERROR,
1022  "Tile data_size mismatch!\n");
1023  result = AVERROR_INVALIDDATA;
1024  break;
1025  }
1026 
1027  pos += tile->data_size << 3; // skip to next tile
1028  }
1029  }
1030 
1031  /* restore the selected rvmap table by applying its corrections in
1032  * reverse order */
1033  for (i = band->num_corr-1; i >= 0; i--) {
1034  idx1 = band->corr[i*2];
1035  idx2 = band->corr[i*2+1];
1036  FFSWAP(uint8_t, band->rv_map->runtab[idx1], band->rv_map->runtab[idx2]);
1037  FFSWAP(int16_t, band->rv_map->valtab[idx1], band->rv_map->valtab[idx2]);
1038  if (idx1 == band->rv_map->eob_sym || idx2 == band->rv_map->eob_sym)
1039  band->rv_map->eob_sym ^= idx1 ^ idx2;
1040  if (idx1 == band->rv_map->esc_sym || idx2 == band->rv_map->esc_sym)
1041  band->rv_map->esc_sym ^= idx1 ^ idx2;
1042  }
1043 
1044 #ifdef DEBUG
1045  if (band->checksum_present) {
1046  uint16_t chksum = ivi_calc_band_checksum(band);
1047  if (chksum != band->checksum) {
1048  av_log(avctx, AV_LOG_ERROR,
1049  "Band checksum mismatch! Plane %d, band %d, "
1050  "received: %"PRIx32", calculated: %"PRIx16"\n",
1051  band->plane, band->band_num, band->checksum, chksum);
1052  }
1053  }
1054 #endif
1055 
1056  align_get_bits(&ctx->gb);
1057 
1058  return result;
1059 }
1060 
1061 int ff_ivi_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
1062  AVPacket *avpkt)
1063 {
1064  IVI45DecContext *ctx = avctx->priv_data;
1065  const uint8_t *buf = avpkt->data;
1066  AVFrame *frame = data;
1067  int buf_size = avpkt->size;
1068  int result, p, b;
1069 
1070  result = init_get_bits8(&ctx->gb, buf, buf_size);
1071  if (result < 0)
1072  return result;
1073  ctx->frame_data = buf;
1074  ctx->frame_size = buf_size;
1075 
1076  result = ctx->decode_pic_hdr(ctx, avctx);
1077  if (result) {
1078  av_log(avctx, AV_LOG_ERROR,
1079  "Error while decoding picture header: %d\n", result);
1080  return result;
1081  }
1082  if (ctx->gop_invalid)
1083  return AVERROR_INVALIDDATA;
1084 
1085  if (ctx->is_indeo4 && ctx->frame_type == IVI4_FRAMETYPE_NULL_LAST) {
1086  if (ctx->got_p_frame) {
1087  av_frame_move_ref(data, ctx->p_frame);
1088  *got_frame = 1;
1089  ctx->got_p_frame = 0;
1090  } else {
1091  *got_frame = 0;
1092  }
1093  return buf_size;
1094  }
1095 
1096  if (ctx->gop_flags & IVI5_IS_PROTECTED) {
1097  avpriv_report_missing_feature(avctx, "Password-protected clip");
1098  return AVERROR_PATCHWELCOME;
1099  }
1100 
1101  if (!ctx->planes[0].bands) {
1102  av_log(avctx, AV_LOG_ERROR, "Color planes not initialized yet\n");
1103  return AVERROR_INVALIDDATA;
1104  }
1105 
1106  ctx->switch_buffers(ctx);
1107 
1108  //{ START_TIMER;
1109 
1110  if (ctx->is_nonnull_frame(ctx)) {
1111  ctx->buf_invalid[ctx->dst_buf] = 1;
1112  for (p = 0; p < 3; p++) {
1113  for (b = 0; b < ctx->planes[p].num_bands; b++) {
1114  result = decode_band(ctx, &ctx->planes[p].bands[b], avctx);
1115  if (result < 0) {
1116  av_log(avctx, AV_LOG_ERROR,
1117  "Error while decoding band: %d, plane: %d\n", b, p);
1118  return result;
1119  }
1120  }
1121  }
1122  ctx->buf_invalid[ctx->dst_buf] = 0;
1123  } else {
1124  if (ctx->is_scalable)
1125  return AVERROR_INVALIDDATA;
1126 
1127  for (p = 0; p < 3; p++) {
1128  if (!ctx->planes[p].bands[0].buf)
1129  return AVERROR_INVALIDDATA;
1130  }
1131  }
1132  if (ctx->buf_invalid[ctx->dst_buf])
1133  return -1;
1134 
1135  //STOP_TIMER("decode_planes"); }
1136 
1137  if (!ctx->is_nonnull_frame(ctx))
1138  return buf_size;
1139 
1140  result = ff_set_dimensions(avctx, ctx->planes[0].width, ctx->planes[0].height);
1141  if (result < 0)
1142  return result;
1143 
1144  if ((result = ff_get_buffer(avctx, frame, 0)) < 0)
1145  return result;
1146 
1147  if (ctx->is_scalable) {
1148  if (ctx->is_indeo4)
1149  ff_ivi_recompose_haar(&ctx->planes[0], frame->data[0], frame->linesize[0]);
1150  else
1151  ff_ivi_recompose53 (&ctx->planes[0], frame->data[0], frame->linesize[0]);
1152  } else {
1153  ivi_output_plane(&ctx->planes[0], frame->data[0], frame->linesize[0]);
1154  }
1155 
1156  ivi_output_plane(&ctx->planes[2], frame->data[1], frame->linesize[1]);
1157  ivi_output_plane(&ctx->planes[1], frame->data[2], frame->linesize[2]);
1158 
1159  *got_frame = 1;
1160 
1161  /* If the bidirectional mode is enabled, next I and the following P
1162  * frame will be sent together. Unfortunately the approach below seems
1163  * to be the only way to handle the B-frames mode.
1164  * That's exactly the same Intel decoders do.
1165  */
1166  if (ctx->is_indeo4 && ctx->frame_type == IVI4_FRAMETYPE_INTRA) {
1167  int left;
1168 
1169  // skip version string
1170  while (get_bits(&ctx->gb, 8)) {
1171  if (get_bits_left(&ctx->gb) < 8)
1172  return AVERROR_INVALIDDATA;
1173  }
1174  left = get_bits_count(&ctx->gb) & 0x18;
1175  skip_bits_long(&ctx->gb, 64 - left);
1176  if (get_bits_left(&ctx->gb) > 18 &&
1177  show_bits_long(&ctx->gb, 21) == 0xBFFF8) { // syncheader + inter type
1178  AVPacket pkt;
1179  pkt.data = avpkt->data + (get_bits_count(&ctx->gb) >> 3);
1180  pkt.size = get_bits_left(&ctx->gb) >> 3;
1181  ff_ivi_decode_frame(avctx, ctx->p_frame, &ctx->got_p_frame, &pkt);
1182  }
1183  }
1184 
1185  if (ctx->show_indeo4_info) {
1186  if (ctx->is_scalable)
1187  av_log(avctx, AV_LOG_DEBUG, "This video uses scalability mode\n");
1188  if (ctx->uses_tiling)
1189  av_log(avctx, AV_LOG_DEBUG, "This video uses local decoding\n");
1190  if (ctx->has_b_frames)
1191  av_log(avctx, AV_LOG_DEBUG, "This video contains B-frames\n");
1192  if (ctx->has_transp)
1193  av_log(avctx, AV_LOG_DEBUG, "Transparency mode is enabled\n");
1194  if (ctx->uses_haar)
1195  av_log(avctx, AV_LOG_DEBUG, "This video uses Haar transform\n");
1196  if (ctx->uses_fullpel)
1197  av_log(avctx, AV_LOG_DEBUG, "This video uses fullpel motion vectors\n");
1198  ctx->show_indeo4_info = 0;
1199  }
1200 
1201  return buf_size;
1202 }
1203 
1204 /**
1205  * Close Indeo5 decoder and clean up its context.
1206  */
1208 {
1209  IVI45DecContext *ctx = avctx->priv_data;
1210 
1211  ivi_free_buffers(&ctx->planes[0]);
1212 
1213  if (ctx->mb_vlc.cust_tab.table)
1214  ff_free_vlc(&ctx->mb_vlc.cust_tab);
1215 
1216  if (ctx->blk_vlc.cust_tab.table)
1217  ff_free_vlc(&ctx->blk_vlc.cust_tab);
1218 
1219  av_frame_free(&ctx->p_frame);
1220 
1221  return 0;
1222 }
1223 
1224 
1225 /**
1226  * Scan patterns shared between indeo4 and indeo5
1227  */
1229  0, 8, 16, 24, 32, 40, 48, 56,
1230  1, 9, 17, 25, 33, 41, 49, 57,
1231  2, 10, 18, 26, 34, 42, 50, 58,
1232  3, 11, 19, 27, 35, 43, 51, 59,
1233  4, 12, 20, 28, 36, 44, 52, 60,
1234  5, 13, 21, 29, 37, 45, 53, 61,
1235  6, 14, 22, 30, 38, 46, 54, 62,
1236  7, 15, 23, 31, 39, 47, 55, 63
1237 };
1238 
1240  0, 1, 2, 3, 4, 5, 6, 7,
1241  8, 9, 10, 11, 12, 13, 14, 15,
1242  16, 17, 18, 19, 20, 21, 22, 23,
1243  24, 25, 26, 27, 28, 29, 30, 31,
1244  32, 33, 34, 35, 36, 37, 38, 39,
1245  40, 41, 42, 43, 44, 45, 46, 47,
1246  48, 49, 50, 51, 52, 53, 54, 55,
1247  56, 57, 58, 59, 60, 61, 62, 63
1248 };
1249 
1251  0, 1, 4, 8, 5, 2, 3, 6, 9, 12, 13, 10, 7, 11, 14, 15
1252 };
1253 
1254 
1255 /**
1256  * Run-value (RLE) tables.
1257  */
1259 { /* MapTab0 */
1260  5, /* eob_sym */
1261  2, /* esc_sym */
1262  /* run table */
1263  {1, 1, 0, 1, 1, 0, 1, 1, 2, 2, 1, 1, 1, 1, 3, 3,
1264  1, 1, 2, 2, 1, 1, 4, 4, 1, 1, 1, 1, 2, 2, 5, 5,
1265  1, 1, 3, 3, 1, 1, 6, 6, 1, 2, 1, 2, 7, 7, 1, 1,
1266  8, 8, 1, 1, 4, 2, 1, 4, 2, 1, 3, 3, 1, 1, 1, 9,
1267  9, 1, 2, 1, 2, 1, 5, 5, 1, 1, 10, 10, 1, 1, 3, 3,
1268  2, 2, 1, 1, 11, 11, 6, 4, 4, 1, 6, 1, 2, 1, 2, 12,
1269  8, 1, 12, 7, 8, 7, 1, 16, 1, 16, 1, 3, 3, 13, 1, 13,
1270  2, 2, 1, 15, 1, 5, 14, 15, 1, 5, 14, 1, 17, 8, 17, 8,
1271  1, 4, 4, 2, 2, 1, 25, 25, 24, 24, 1, 3, 1, 3, 1, 8,
1272  6, 7, 6, 1, 18, 8, 18, 1, 7, 23, 2, 2, 23, 1, 1, 21,
1273  22, 9, 9, 22, 19, 1, 21, 5, 19, 5, 1, 33, 20, 33, 20, 8,
1274  4, 4, 1, 32, 2, 2, 8, 3, 32, 26, 3, 1, 7, 7, 26, 6,
1275  1, 6, 1, 1, 16, 1, 10, 1, 10, 2, 16, 29, 28, 2, 29, 28,
1276  1, 27, 5, 8, 5, 27, 1, 8, 3, 7, 3, 31, 41, 31, 1, 41,
1277  6, 1, 6, 7, 4, 4, 1, 1, 2, 1, 2, 11, 34, 30, 11, 1,
1278  30, 15, 15, 34, 36, 40, 36, 40, 35, 35, 37, 37, 39, 39, 38, 38},
1279 
1280  /* value table */
1281  { 1, -1, 0, 2, -2, 0, 3, -3, 1, -1, 4, -4, 5, -5, 1, -1,
1282  6, -6, 2, -2, 7, -7, 1, -1, 8, -8, 9, -9, 3, -3, 1, -1,
1283  10, -10, 2, -2, 11, -11, 1, -1, 12, 4, -12, -4, 1, -1, 13, -13,
1284  1, -1, 14, -14, 2, 5, 15, -2, -5, -15, -3, 3, 16, -16, 17, 1,
1285  -1, -17, 6, 18, -6, -18, 2, -2, 19, -19, 1, -1, 20, -20, 4, -4,
1286  7, -7, 21, -21, 1, -1, 2, 3, -3, 22, -2, -22, 8, 23, -8, 1,
1287  2, -23, -1, 2, -2, -2, 24, 1, -24, -1, 25, 5, -5, 1, -25, -1,
1288  9, -9, 26, 1, -26, 3, 1, -1, 27, -3, -1, -27, 1, 3, -1, -3,
1289  28, -4, 4, 10, -10, -28, 1, -1, 1, -1, 29, 6, -29, -6, 30, -4,
1290  3, 3, -3, -30, 1, 4, -1, 31, -3, 1, 11, -11, -1, -31, 32, -1,
1291  -1, 2, -2, 1, 1, -32, 1, 4, -1, -4, 33, -1, 1, 1, -1, 5,
1292  5, -5, -33, -1, -12, 12, -5, -7, 1, 1, 7, 34, 4, -4, -1, 4,
1293  -34, -4, 35, 36, -2, -35, -2, -36, 2, 13, 2, -1, 1, -13, 1, -1,
1294  37, 1, -5, 6, 5, -1, 38, -6, -8, 5, 8, -1, 1, 1, -37, -1,
1295  5, 39, -5, -5, 6, -6, -38, -39, -14, 40, 14, 2, 1, 1, -2, -40,
1296  -1, -2, 2, -1, -1, -1, 1, 1, 1, -1, 1, -1, 1, -1, 1, -1}
1297 },{
1298  /* MapTab1 */
1299  0, /* eob_sym */
1300  38, /* esc_sym */
1301  /* run table */
1302  {0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 8, 6, 8, 7,
1303  7, 9, 9, 10, 10, 11, 11, 1, 12, 1, 12, 13, 13, 16, 14, 16,
1304  14, 15, 15, 17, 17, 18, 0, 18, 19, 20, 21, 19, 22, 21, 20, 22,
1305  25, 24, 2, 25, 24, 23, 23, 2, 26, 28, 26, 28, 29, 27, 29, 27,
1306  33, 33, 1, 32, 1, 3, 32, 30, 36, 3, 36, 30, 31, 31, 35, 34,
1307  37, 41, 34, 35, 37, 4, 41, 4, 49, 8, 8, 49, 40, 38, 5, 38,
1308  40, 39, 5, 39, 42, 43, 42, 7, 57, 6, 43, 44, 6, 50, 7, 44,
1309  57, 48, 50, 48, 45, 45, 46, 47, 51, 46, 47, 58, 1, 51, 58, 1,
1310  52, 59, 53, 9, 52, 55, 55, 59, 53, 56, 54, 56, 54, 9, 64, 64,
1311  60, 63, 60, 63, 61, 62, 61, 62, 2, 10, 2, 10, 11, 1, 11, 13,
1312  12, 1, 12, 13, 16, 16, 8, 8, 14, 3, 3, 15, 14, 15, 4, 4,
1313  1, 17, 17, 5, 1, 7, 7, 5, 6, 1, 2, 2, 6, 22, 1, 25,
1314  21, 22, 8, 24, 1, 21, 25, 24, 8, 18, 18, 23, 9, 20, 23, 33,
1315  29, 33, 20, 1, 19, 1, 29, 36, 9, 36, 19, 41, 28, 57, 32, 3,
1316  28, 3, 1, 27, 49, 49, 1, 32, 26, 26, 2, 4, 4, 7, 57, 41,
1317  2, 7, 10, 5, 37, 16, 10, 27, 8, 8, 13, 16, 37, 13, 1, 5},
1318 
1319  /* value table */
1320  {0, 1, -1, 1, -1, 1, -1, 1, -1, 1, -1, 1, 1, -1, -1, 1,
1321  -1, 1, -1, 1, -1, 1, -1, 2, 1, -2, -1, 1, -1, 1, 1, -1,
1322  -1, 1, -1, 1, -1, 1, 0, -1, 1, 1, 1, -1, 1, -1, -1, -1,
1323  1, 1, 2, -1, -1, 1, -1, -2, 1, 1, -1, -1, 1, 1, -1, -1,
1324  1, -1, 3, 1, -3, 2, -1, 1, 1, -2, -1, -1, -1, 1, 1, 1,
1325  1, 1, -1, -1, -1, 2, -1, -2, 1, 2, -2, -1, 1, 1, 2, -1,
1326  -1, 1, -2, -1, 1, 1, -1, 2, 1, 2, -1, 1, -2, -1, -2, -1,
1327  -1, 1, 1, -1, 1, -1, 1, 1, 1, -1, -1, 1, 4, -1, -1, -4,
1328  1, 1, 1, 2, -1, -1, 1, -1, -1, 1, -1, -1, 1, -2, 1, -1,
1329  1, 1, -1, -1, 1, 1, -1, -1, 3, 2, -3, -2, 2, 5, -2, 2,
1330  2, -5, -2, -2, -2, 2, -3, 3, 2, 3, -3, 2, -2, -2, 3, -3,
1331  6, 2, -2, 3, -6, 3, -3, -3, 3, 7, -4, 4, -3, 2, -7, 2,
1332  2, -2, -4, 2, 8, -2, -2, -2, 4, 2, -2, 2, 3, 2, -2, -2,
1333  2, 2, -2, -8, -2, 9, -2, 2, -3, -2, 2, -2, 2, 2, 2, 4,
1334  -2, -4, 10, 2, 2, -2, -9, -2, 2, -2, 5, 4, -4, 4, -2, 2,
1335  -5, -4, -3, 4, 2, -3, 3, -2, -5, 5, 3, 3, -2, -3, -10, -4}
1336 },{
1337  /* MapTab2 */
1338  2, /* eob_sym */
1339  11, /* esc_sym */
1340  /* run table */
1341  {1, 1, 0, 2, 2, 1, 1, 3, 3, 4, 4, 0, 1, 1, 5, 5,
1342  2, 2, 6, 6, 7, 7, 1, 8, 1, 8, 3, 3, 9, 9, 1, 2,
1343  2, 1, 4, 10, 4, 10, 11, 11, 1, 5, 12, 12, 1, 5, 13, 13,
1344  3, 3, 6, 6, 2, 2, 14, 14, 16, 16, 15, 7, 15, 8, 8, 7,
1345  1, 1, 17, 17, 4, 4, 1, 1, 18, 18, 2, 2, 5, 5, 25, 3,
1346  9, 3, 25, 9, 19, 24, 19, 24, 1, 21, 20, 1, 21, 22, 20, 22,
1347  23, 23, 8, 6, 33, 6, 8, 33, 7, 7, 26, 26, 1, 32, 1, 32,
1348  28, 4, 28, 10, 29, 27, 27, 10, 41, 4, 29, 2, 2, 41, 36, 31,
1349  49, 31, 34, 30, 34, 36, 30, 35, 1, 49, 11, 5, 35, 11, 1, 3,
1350  3, 5, 37, 37, 8, 40, 8, 40, 12, 12, 42, 42, 1, 38, 16, 57,
1351  1, 6, 16, 39, 38, 6, 7, 7, 13, 13, 39, 43, 2, 43, 57, 2,
1352  50, 9, 44, 9, 50, 4, 15, 48, 44, 4, 1, 15, 48, 14, 14, 1,
1353  45, 45, 8, 3, 5, 8, 51, 47, 3, 46, 46, 47, 5, 51, 1, 17,
1354  17, 58, 1, 58, 2, 52, 52, 2, 53, 7, 59, 6, 6, 56, 53, 55,
1355  7, 55, 1, 54, 59, 56, 54, 10, 1, 10, 4, 60, 1, 60, 8, 4,
1356  8, 64, 64, 61, 1, 63, 3, 63, 62, 61, 5, 11, 5, 3, 11, 62},
1357 
1358  /* value table */
1359  { 1, -1, 0, 1, -1, 2, -2, 1, -1, 1, -1, 0, 3, -3, 1, -1,
1360  2, -2, 1, -1, 1, -1, 4, 1, -4, -1, 2, -2, 1, -1, 5, 3,
1361  -3, -5, 2, 1, -2, -1, 1, -1, 6, 2, 1, -1, -6, -2, 1, -1,
1362  3, -3, 2, -2, 4, -4, 1, -1, 1, -1, 1, 2, -1, 2, -2, -2,
1363  7, -7, 1, -1, 3, -3, 8, -8, 1, -1, 5, -5, 3, -3, 1, 4,
1364  2, -4, -1, -2, 1, 1, -1, -1, 9, 1, 1, -9, -1, 1, -1, -1,
1365  1, -1, 3, -3, 1, 3, -3, -1, 3, -3, 1, -1, 10, 1, -10, -1,
1366  1, 4, -1, 2, 1, -1, 1, -2, 1, -4, -1, 6, -6, -1, 1, 1,
1367  1, -1, 1, 1, -1, -1, -1, 1, 11, -1, -2, 4, -1, 2, -11, 5,
1368  -5, -4, -1, 1, 4, 1, -4, -1, -2, 2, 1, -1, 12, 1, -2, 1,
1369  -12, 4, 2, 1, -1, -4, 4, -4, 2, -2, -1, 1, 7, -1, -1, -7,
1370  -1, -3, 1, 3, 1, 5, 2, 1, -1, -5, 13, -2, -1, 2, -2, -13,
1371  1, -1, 5, 6, 5, -5, 1, 1, -6, 1, -1, -1, -5, -1, 14, 2,
1372  -2, 1, -14, -1, 8, 1, -1, -8, 1, 5, 1, 5, -5, 1, -1, 1,
1373  -5, -1, 15, 1, -1, -1, -1, 3, -15, -3, 6, 1, 16, -1, 6, -6,
1374  -6, 1, -1, 1, -16, 1, 7, -1, 1, -1, -6, -3, 6, -7, 3, -1}
1375 },{
1376  /* MapTab3 */
1377  0, /* eob_sym */
1378  35, /* esc_sym */
1379  /* run table */
1380  {0, 1, 1, 2, 2, 3, 3, 4, 4, 1, 1, 5, 5, 6, 6, 7,
1381  7, 8, 8, 9, 9, 2, 2, 10, 10, 1, 1, 11, 11, 12, 12, 3,
1382  3, 13, 13, 0, 14, 14, 16, 15, 16, 15, 4, 4, 17, 1, 17, 1,
1383  5, 5, 18, 18, 2, 2, 6, 6, 8, 19, 7, 8, 7, 19, 20, 20,
1384  21, 21, 22, 24, 22, 24, 23, 23, 1, 1, 25, 25, 3, 3, 26, 26,
1385  9, 9, 27, 27, 28, 28, 33, 29, 4, 33, 29, 1, 4, 1, 32, 32,
1386  2, 2, 31, 10, 30, 10, 30, 31, 34, 34, 5, 5, 36, 36, 35, 41,
1387  35, 11, 41, 11, 37, 1, 8, 8, 37, 6, 1, 6, 40, 7, 7, 40,
1388  12, 38, 12, 39, 39, 38, 49, 13, 49, 13, 3, 42, 3, 42, 16, 16,
1389  43, 43, 14, 14, 1, 1, 44, 15, 44, 15, 2, 2, 57, 48, 50, 48,
1390  57, 50, 4, 45, 45, 4, 46, 47, 47, 46, 1, 51, 1, 17, 17, 51,
1391  8, 9, 9, 5, 58, 8, 58, 5, 52, 52, 55, 56, 53, 56, 55, 59,
1392  59, 53, 54, 1, 6, 54, 7, 7, 6, 1, 2, 3, 2, 3, 64, 60,
1393  60, 10, 10, 64, 61, 62, 61, 63, 1, 63, 62, 1, 18, 24, 18, 4,
1394  25, 4, 8, 21, 21, 1, 24, 22, 25, 22, 8, 11, 19, 11, 23, 1,
1395  20, 23, 19, 20, 5, 12, 5, 1, 16, 2, 12, 13, 2, 13, 1, 16},
1396 
1397  /* value table */
1398  { 0, 1, -1, 1, -1, 1, -1, 1, -1, 2, -2, 1, -1, 1, -1, 1,
1399  -1, 1, -1, 1, -1, 2, -2, 1, -1, 3, -3, 1, -1, 1, -1, 2,
1400  -2, 1, -1, 0, 1, -1, 1, 1, -1, -1, 2, -2, 1, 4, -1, -4,
1401  2, -2, 1, -1, -3, 3, 2, -2, 2, 1, 2, -2, -2, -1, 1, -1,
1402  1, -1, 1, 1, -1, -1, 1, -1, 5, -5, 1, -1, 3, -3, 1, -1,
1403  2, -2, 1, -1, 1, -1, 1, 1, 3, -1, -1, 6, -3, -6, -1, 1,
1404  4, -4, 1, 2, 1, -2, -1, -1, 1, -1, 3, -3, 1, -1, 1, 1,
1405  -1, 2, -1, -2, 1, 7, -3, 3, -1, 3, -7, -3, 1, -3, 3, -1,
1406  2, 1, -2, 1, -1, -1, 1, 2, -1, -2, -4, -1, 4, 1, 2, -2,
1407  1, -1, -2, 2, 8, -8, -1, 2, 1, -2, -5, 5, 1, -1, -1, 1,
1408  -1, 1, 4, -1, 1, -4, -1, -1, 1, 1, 9, 1, -9, 2, -2, -1,
1409  -4, 3, -3, -4, -1, 4, 1, 4, 1, -1, 1, -1, 1, 1, -1, 1,
1410  -1, -1, -1, 10, 4, 1, 4, -4, -4, -10, 6, 5, -6, -5, 1, -1,
1411  1, 3, -3, -1, 1, -1, -1, -1, 11, 1, 1, -11, -2, -2, 2, 5,
1412  -2, -5, -5, 2, -2, 12, 2, -2, 2, 2, 5, -3, -2, 3, -2, -12,
1413  -2, 2, 2, 2, -5, 3, 5, 13, -3, 7, -3, -3, -7, 3, -13, 3}
1414 },{
1415  /* MapTab4 */
1416  0, /* eob_sym */
1417  34, /* esc_sym */
1418  /* run table */
1419  {0, 1, 1, 1, 2, 2, 1, 3, 3, 1, 1, 1, 4, 4, 1, 5,
1420  2, 1, 5, 2, 1, 1, 6, 6, 1, 1, 1, 1, 1, 7, 3, 1,
1421  2, 3, 0, 1, 2, 7, 1, 1, 1, 8, 1, 1, 8, 1, 1, 1,
1422  9, 1, 9, 1, 2, 1, 1, 2, 1, 1, 10, 4, 1, 10, 1, 4,
1423  1, 1, 1, 1, 1, 3, 1, 1, 1, 3, 2, 1, 5, 1, 1, 1,
1424  2, 5, 1, 11, 1, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1425  2, 1, 6, 1, 6, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 12,
1426  3, 1, 12, 1, 1, 1, 2, 1, 1, 3, 1, 1, 1, 1, 1, 1,
1427  4, 1, 1, 1, 2, 1, 1, 4, 1, 1, 1, 1, 1, 1, 2, 1,
1428  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 2, 1, 1, 5,
1429  1, 1, 1, 1, 1, 7, 1, 7, 1, 1, 2, 3, 1, 1, 1, 1,
1430  5, 1, 1, 1, 1, 1, 1, 2, 13, 1, 1, 1, 1, 1, 1, 1,
1431  1, 1, 1, 1, 1, 1, 1, 1, 13, 2, 1, 1, 4, 1, 1, 1,
1432  3, 1, 6, 1, 1, 1, 14, 1, 1, 1, 1, 1, 14, 6, 1, 1,
1433  1, 1, 15, 2, 4, 1, 2, 3, 15, 1, 1, 1, 8, 1, 1, 8,
1434  1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1},
1435 
1436  /* value table */
1437  { 0, 1, -1, 2, 1, -1, -2, 1, -1, 3, -3, 4, 1, -1, -4, 1,
1438  2, 5, -1, -2, -5, 6, 1, -1, -6, 7, -7, 8, -8, 1, 2, 9,
1439  3, -2, 0, -9, -3, -1, 10, -10, 11, 1, -11, 12, -1, -12, 13, -13,
1440  1, 14, -1, -14, 4, 15, -15, -4, 16, -16, 1, 2, 17, -1, -17, -2,
1441  18, -18, 19, -19, 20, 3, -20, 21, -21, -3, 5, 22, 2, -22, -23, 23,
1442  -5, -2, 24, 1, -24, -1, 25, -25, 26, -26, -27, 27, 28, 29, -28, -29,
1443  6, 30, 2, -31, -2, -30, 31, -6, -32, 32, 33, -33, 34, -35, -34, 1,
1444  4, -36, -1, 35, 37, 36, 7, -37, 38, -4, -38, 39, 41, 40, -40, -39,
1445  3, 42, -43, -41, -7, -42, 43, -3, 44, -44, 45, -45, 46, 47, 8, -47,
1446  -48, -46, 50, -50, 48, 49, 51, -49, 52, -52, 5, -51, -8, -53, 53, 3,
1447  -56, 56, 55, 54, -54, 2, 60, -2, -55, 58, 9, -5, 59, 57, -57, -63,
1448  -3, -58, -60, -61, 61, -59, -62, -9, 1, 64, 62, 69, -64, 63, 65, -67,
1449  -68, 66, -65, 68, -66, -69, 67, -70, -1, 10, 71, -71, 4, 73, 72, 70,
1450  6, -76, -3, 74, -78, -74, 1, 78, 80, -72, -75, 76, -1, 3, -73, 79,
1451  75, 77, 1, 11, -4, -79, -10, -6, -1, -77, -83, -80, 2, 81, -84, -2,
1452  83, -81, 82, -82, 84, -87, -86, 85, -11, -85, 86, -89, 87, -88, 88, 89}
1453 },{
1454  /* MapTab5 */
1455  2, /* eob_sym */
1456  33, /* esc_sym */
1457  /* run table */
1458  {1, 1, 0, 2, 1, 2, 1, 3, 3, 1, 1, 4, 4, 2, 2, 1,
1459  1, 5, 5, 6, 1, 6, 1, 7, 7, 3, 3, 2, 8, 2, 8, 1,
1460  1, 0, 9, 9, 1, 1, 10, 4, 10, 4, 11, 11, 2, 1, 2, 1,
1461  12, 12, 3, 3, 1, 1, 13, 5, 5, 13, 14, 1, 1, 14, 2, 2,
1462  6, 6, 15, 1, 1, 15, 16, 4, 7, 16, 4, 7, 1, 1, 3, 3,
1463  8, 8, 2, 2, 1, 1, 17, 17, 1, 1, 18, 18, 5, 5, 2, 2,
1464  1, 1, 9, 19, 9, 19, 20, 3, 3, 20, 1, 10, 21, 1, 10, 4,
1465  4, 21, 22, 6, 6, 22, 1, 1, 23, 24, 2, 2, 23, 24, 11, 1,
1466  1, 11, 7, 25, 7, 1, 1, 25, 8, 8, 3, 26, 3, 1, 12, 2,
1467  2, 26, 1, 12, 5, 5, 27, 4, 1, 4, 1, 27, 28, 1, 28, 13,
1468  1, 13, 2, 29, 2, 1, 32, 6, 1, 30, 14, 29, 14, 6, 3, 31,
1469  3, 1, 30, 1, 32, 31, 33, 9, 33, 1, 1, 7, 9, 7, 2, 2,
1470  1, 1, 4, 36, 34, 4, 5, 10, 10, 5, 34, 1, 1, 35, 8, 8,
1471  36, 3, 35, 1, 15, 3, 2, 1, 16, 15, 16, 2, 37, 1, 37, 1,
1472  1, 1, 6, 6, 38, 1, 38, 11, 1, 39, 39, 40, 11, 2, 41, 4,
1473  40, 1, 2, 4, 1, 1, 1, 41, 3, 1, 3, 1, 5, 7, 5, 7},
1474 
1475  /* value table */
1476  { 1, -1, 0, 1, 2, -1, -2, 1, -1, 3, -3, 1, -1, 2, -2, 4,
1477  -4, 1, -1, 1, 5, -1, -5, 1, -1, 2, -2, 3, 1, -3, -1, 6,
1478  -6, 0, 1, -1, 7, -7, 1, 2, -1, -2, 1, -1, 4, 8, -4, -8,
1479  1, -1, 3, -3, 9, -9, 1, 2, -2, -1, 1, 10, -10, -1, 5, -5,
1480  2, -2, 1, 11, -11, -1, 1, 3, 2, -1, -3, -2, 12, -12, 4, -4,
1481  2, -2, -6, 6, 13, -13, 1, -1, 14, -14, 1, -1, 3, -3, 7, -7,
1482  15, -15, 2, 1, -2, -1, 1, 5, -5, -1, -16, 2, 1, 16, -2, 4,
1483  -4, -1, 1, 3, -3, -1, 17, -17, 1, 1, -8, 8, -1, -1, 2, 18,
1484  -18, -2, 3, 1, -3, 19, -19, -1, 3, -3, 6, 1, -6, 20, 2, 9,
1485  -9, -1, -20, -2, 4, -4, 1, -5, 21, 5, -21, -1, 1, -22, -1, 2,
1486  22, -2, 10, 1, -10, 23, 1, 4, -23, 1, 2, -1, -2, -4, -7, 1,
1487  7, -24, -1, 24, -1, -1, 1, 3, -1, -25, 25, 4, -3, -4, 11, -11,
1488  26, -26, 6, 1, 1, -6, -5, -3, 3, 5, -1, -27, 27, 1, 4, -4,
1489  -1, -8, -1, 28, 2, 8, -12, -28, -2, -2, 2, 12, -1, 29, 1, -29,
1490  30, -30, 5, -5, 1, -31, -1, 3, 31, -1, 1, 1, -3, -13, 1, -7,
1491  -1, -32, 13, 7, 32, 33, -33, -1, -9, -34, 9, 34, -6, 5, 6, -5}
1492 },{
1493  /* MapTab6 */
1494  2, /* eob_sym */
1495  13, /* esc_sym */
1496  /* run table */
1497  {1, 1, 0, 1, 1, 2, 2, 1, 1, 3, 3, 1, 1, 0, 2, 2,
1498  4, 1, 4, 1, 1, 1, 5, 5, 1, 1, 6, 6, 2, 2, 1, 1,
1499  3, 3, 7, 7, 1, 1, 8, 8, 1, 1, 2, 2, 1, 9, 1, 9,
1500  4, 4, 10, 1, 1, 10, 1, 1, 11, 11, 3, 3, 1, 2, 1, 2,
1501  1, 1, 12, 12, 5, 5, 1, 1, 13, 1, 1, 13, 2, 2, 1, 1,
1502  6, 6, 1, 1, 4, 14, 4, 14, 3, 1, 3, 1, 1, 1, 15, 7,
1503  15, 2, 2, 7, 1, 1, 1, 8, 1, 8, 16, 16, 1, 1, 1, 1,
1504  2, 1, 1, 2, 1, 1, 3, 5, 5, 3, 4, 1, 1, 4, 1, 1,
1505  17, 17, 9, 1, 1, 9, 2, 2, 1, 1, 10, 10, 1, 6, 1, 1,
1506  6, 18, 1, 1, 18, 1, 1, 1, 2, 2, 3, 1, 3, 1, 1, 1,
1507  4, 1, 19, 1, 19, 7, 1, 1, 20, 1, 4, 20, 1, 7, 11, 2,
1508  1, 11, 21, 2, 8, 5, 1, 8, 1, 5, 21, 1, 1, 1, 22, 1,
1509  1, 22, 1, 1, 3, 3, 1, 23, 2, 12, 24, 1, 1, 2, 1, 1,
1510  12, 23, 1, 1, 24, 1, 1, 1, 4, 1, 1, 1, 2, 1, 6, 6,
1511  4, 2, 1, 1, 1, 1, 1, 1, 1, 14, 13, 3, 1, 25, 9, 25,
1512  14, 1, 9, 3, 13, 1, 1, 1, 1, 1, 10, 1, 1, 2, 10, 2},
1513 
1514  /* value table */
1515  {-20, -1, 0, 2, -2, 1, -1, 3, -3, 1, -1, 4, -4, 0, 2, -2,
1516  1, 5, -1, -5, 6, -6, 1, -1, 7, -7, 1, -1, 3, -3, 8, -8,
1517  2, -2, 1, -1, 9, -9, 1, -1, 10, -10, 4, -4, 11, 1, -11, -1,
1518  2, -2, 1, 12, -12, -1, 13, -13, 1, -1, 3, -3, 14, 5, -14, -5,
1519  -15, 15, -1, 1, 2, -2, 16, -16, 1, 17, -17, -1, 6, -6, 18, -18,
1520  2, -2, -19, 19, -3, 1, 3, -1, 4, 20, -4, 1, -21, 21, 1, 2,
1521  -1, -7, 7, -2, 22, -22, 23, 2, -23, -2, 1, -1, -24, 24, -25, 25,
1522  -8, -26, 26, 8, -27, 27, 5, 3, -3, -5, -4, 28, -28, 4, 29, -29,
1523  1, -1, -2, -30, 30, 2, 9, -9, -31, 31, 2, -2, -32, 3, 32, -33,
1524  -3, 1, 33, -34, -1, 34, -35, 35, -10, 10, -6, 36, 6, -36, 37, -37,
1525  -5, 38, 1, -38, -1, 3, 39, -39, -1, 40, 5, 1, -40, -3, 2, -11,
1526  -41, -2, 1, 11, -3, -4, 41, 3, 42, 4, -1, -43, -42, 43, 1, -44,
1527  45, -1, 44, -45, -7, 7, -46, 1, -12, 2, 1, -47, 46, 12, 47, 48,
1528  -2, -1, -48, 49, -1, -50, -49, 50, -6, -51, 51, 52, -13, 53, -4, 4,
1529  6, 13, -53, -52, -54, 55, 54, -55, -56, -2, 2, -8, 56, 1, -3, -1,
1530  2, 58, 3, 8, -2, 57, -58, -60, -59, -57, -3, 60, 59, -14, 3, 14}
1531 },{
1532  /* MapTab7 */
1533  2, /* eob_sym */
1534  38, /* esc_sym */
1535  /* run table */
1536  {1, 1, 0, 2, 2, 1, 1, 3, 3, 4, 4, 5, 5, 1, 1, 6,
1537  6, 2, 2, 7, 7, 8, 8, 1, 1, 3, 3, 9, 9, 10, 10, 1,
1538  1, 2, 2, 4, 4, 11, 0, 11, 12, 12, 13, 13, 1, 1, 5, 5,
1539  14, 14, 15, 16, 15, 16, 3, 3, 1, 6, 1, 6, 2, 2, 7, 7,
1540  8, 8, 17, 17, 1, 1, 4, 4, 18, 18, 2, 2, 1, 19, 1, 20,
1541  19, 20, 21, 21, 3, 3, 22, 22, 5, 5, 24, 1, 1, 23, 9, 23,
1542  24, 9, 2, 2, 10, 1, 1, 10, 6, 6, 25, 4, 4, 25, 7, 7,
1543  26, 8, 1, 8, 3, 1, 26, 3, 11, 11, 27, 27, 2, 28, 1, 2,
1544  28, 1, 12, 12, 5, 5, 29, 13, 13, 29, 32, 1, 1, 33, 31, 30,
1545  32, 4, 30, 33, 4, 31, 3, 14, 1, 1, 3, 34, 34, 2, 2, 14,
1546  6, 6, 35, 36, 35, 36, 1, 15, 1, 16, 16, 15, 7, 9, 7, 9,
1547  37, 8, 8, 37, 1, 1, 39, 2, 38, 39, 2, 40, 5, 38, 40, 5,
1548  3, 3, 4, 4, 10, 10, 1, 1, 1, 1, 41, 2, 41, 2, 6, 6,
1549  1, 1, 11, 42, 11, 43, 3, 42, 3, 17, 4, 43, 1, 17, 7, 1,
1550  8, 44, 4, 7, 44, 5, 8, 2, 5, 1, 2, 48, 45, 1, 12, 45,
1551  12, 48, 13, 13, 1, 9, 9, 46, 1, 46, 47, 47, 49, 18, 18, 49},
1552 
1553  /* value table */
1554  { 1, -1, 0, 1, -1, 2, -2, 1, -1, 1, -1, 1, -1, 3, -3, 1,
1555  -1, -2, 2, 1, -1, 1, -1, 4, -4, -2, 2, 1, -1, 1, -1, 5,
1556  -5, -3, 3, 2, -2, 1, 0, -1, 1, -1, 1, -1, 6, -6, 2, -2,
1557  1, -1, 1, 1, -1, -1, -3, 3, 7, 2, -7, -2, -4, 4, 2, -2,
1558  2, -2, 1, -1, 8, -8, 3, -3, 1, -1, -5, 5, 9, 1, -9, 1,
1559  -1, -1, 1, -1, -4, 4, 1, -1, 3, -3, 1, -10, 10, 1, 2, -1,
1560  -1, -2, 6, -6, 2, 11, -11, -2, 3, -3, 1, -4, 4, -1, 3, -3,
1561  1, 3, 12, -3, -5, -12, -1, 5, 2, -2, 1, -1, -7, 1, 13, 7,
1562  -1, -13, 2, -2, 4, -4, 1, 2, -2, -1, 1, 14, -14, 1, 1, 1,
1563  -1, -5, -1, -1, 5, -1, -6, 2, -15, 15, 6, 1, -1, -8, 8, -2,
1564  -4, 4, 1, 1, -1, -1, 16, 2, -16, -2, 2, -2, 4, 3, -4, -3,
1565  -1, -4, 4, 1, -17, 17, -1, -9, 1, 1, 9, 1, -5, -1, -1, 5,
1566  -7, 7, 6, -6, 3, -3, 18, -18, 19, -19, 1, -10, -1, 10, -5, 5,
1567  20, -20, -3, 1, 3, 1, 8, -1, -8, 2, 7, -1, -21, -2, 5, 21,
1568  5, -1, -7, -5, 1, -6, -5, -11, 6, 22, 11, 1, 1, -22, -3, -1,
1569  3, -1, 3, -3, -23, 4, -4, 1, 23, -1, 1, -1, 1, -2, 2, -1}
1570 },{
1571  /* MapTab8 */
1572  4, /* eob_sym */
1573  11, /* esc_sym */
1574  /* run table */
1575  {1, 1, 1, 1, 0, 2, 2, 1, 1, 3, 3, 0, 1, 1, 2, 2,
1576  4, 4, 1, 1, 5, 5, 1, 1, 2, 2, 3, 3, 6, 6, 1, 1,
1577  7, 7, 8, 1, 8, 2, 2, 1, 4, 4, 1, 3, 1, 3, 9, 9,
1578  2, 2, 1, 5, 1, 5, 10, 10, 1, 1, 11, 11, 3, 6, 3, 4,
1579  4, 6, 2, 2, 1, 12, 1, 12, 7, 13, 7, 13, 1, 1, 8, 8,
1580  2, 2, 14, 14, 16, 15, 16, 5, 5, 1, 3, 15, 1, 3, 4, 4,
1581  1, 1, 17, 17, 2, 2, 6, 6, 1, 18, 1, 18, 22, 21, 22, 21,
1582  25, 24, 25, 19, 9, 20, 9, 23, 19, 24, 20, 3, 23, 7, 3, 1,
1583  1, 7, 28, 26, 29, 5, 28, 26, 5, 8, 29, 4, 8, 27, 2, 2,
1584  4, 27, 1, 1, 10, 36, 10, 33, 33, 36, 30, 1, 32, 32, 1, 30,
1585  6, 31, 31, 35, 3, 6, 11, 11, 3, 2, 35, 2, 34, 1, 34, 1,
1586  37, 37, 12, 7, 12, 5, 41, 5, 4, 7, 1, 8, 13, 4, 1, 41,
1587  13, 38, 8, 38, 9, 1, 40, 40, 9, 1, 39, 2, 2, 49, 39, 42,
1588  3, 3, 14, 16, 49, 14, 16, 42, 43, 43, 6, 6, 15, 1, 1, 15,
1589  44, 44, 1, 1, 50, 48, 4, 5, 4, 7, 5, 2, 10, 10, 48, 7,
1590  50, 45, 2, 1, 45, 8, 8, 1, 46, 46, 3, 47, 47, 3, 1, 1},
1591 
1592  /* value table */
1593  { 1, -1, 2, -2, 0, 1, -1, 3, -3, 1, -1, 0, 4, -4, 2, -2,
1594  1, -1, 5, -5, 1, -1, 6, -6, 3, -3, 2, -2, 1, -1, 7, -7,
1595  1, -1, 1, 8, -1, 4, -4, -8, 2, -2, 9, 3, -9, -3, 1, -1,
1596  5, -5, 10, 2, -10, -2, 1, -1, 11, -11, 1, -1, -4, 2, 4, 3,
1597  -3, -2, 6, -6, 12, 1, -12, -1, 2, 1, -2, -1, 13, -13, 2, -2,
1598  7, -7, 1, -1, 1, 1, -1, 3, -3, 14, 5, -1, -14, -5, 4, -4,
1599  15, -15, 1, -1, 8, -8, -3, 3, 16, 1, -16, -1, 1, 1, -1, -1,
1600  1, 1, -1, 1, 2, 1, -2, 1, -1, -1, -1, 6, -1, 3, -6, 17,
1601  -17, -3, 1, 1, 1, 4, -1, -1, -4, 3, -1, 5, -3, -1, -9, 9,
1602  -5, 1, 18, -18, 2, 1, -2, 1, -1, -1, 1, 19, -1, 1, -19, -1,
1603  4, 1, -1, 1, 7, -4, -2, 2, -7, 10, -1, -10, 1, 20, -1, -20,
1604  1, -1, 2, 4, -2, 5, 1, -5, 6, -4, 21, 4, 2, -6, -21, -1,
1605  -2, 1, -4, -1, -3, 22, -1, 1, 3, -22, -1, 11, -11, 1, 1, 1,
1606  8, -8, 2, 2, -1, -2, -2, -1, 1, -1, -5, 5, 2, 23, -23, -2,
1607  1, -1, 24, -24, -1, -1, 7, 6, -7, 5, -6, 12, -3, 3, 1, -5,
1608  1, 1, -12, 25, -1, -5, 5, -25, -1, 1, 9, 1, -1, -9, 26, -26}
1609 }
1610 };
#define IVI_NUM_TILES(stride, tile_size)
calculate number of tiles in a stride
Definition: ivi.h:283
static unsigned int show_bits_long(GetBitContext *s, int n)
Show 0-32 bits.
Definition: get_bits.h:587
int plane
Definition: avisynth_c.h:422
int is_empty
= 1 if this band doesn&#39;t contain any data
Definition: ivi.h:157
static int ivi_process_empty_tile(AVCodecContext *avctx, IVIBandDesc *band, IVITile *tile, int32_t mv_scale)
Handle empty tiles by performing data copying and motion compensation respectively.
Definition: ivi.c:760
const uint8_t ff_ivi_direct_scan_4x4[16]
Definition: ivi.c:1250
uint8_t type
macroblock type: 0 - INTRA, 1 - INTER
Definition: ivi.h:114
int num_MBs
number of macroblocks in this tile
Definition: ivi.h:135
#define NULL
Definition: coverity.c:32
const char const char void * val
Definition: avisynth_c.h:771
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:59
static const IVIHuffDesc ivi_mb_huff_desc[8]
These are 2x8 predefined Huffman codebooks for coding macroblock/block signals.
Definition: ivi.c:50
static av_always_inline void mv_scale(Mv *dst, Mv *src, int td, int tb)
Definition: hevc_mvs.c:115
This structure describes decoded (raw) audio or video data.
Definition: frame.h:226
macroblock/block huffman table descriptor
Definition: ivi.h:63
int(* is_nonnull_frame)(struct IVI45DecContext *ctx)
Definition: ivi.h:262
InvTransformPtr * inv_transform
Definition: ivi.h:177
bidirectional frame
Definition: ivi.h:43
misc image utilities
static unsigned int get_bits(GetBitContext *s, int n)
Read 1-25 bits.
Definition: get_bits.h:381
int ff_set_dimensions(AVCodecContext *s, int width, int height)
Check that the provided frame dimensions are valid and set them on the codec context.
Definition: utils.c:104
static void skip_bits_long(GetBitContext *s, int n)
Skips the specified number of bits.
Definition: get_bits.h:293
static int ivi_huff_desc_cmp(const IVIHuffDesc *desc1, const IVIHuffDesc *desc2)
Definition: ivi.c:219
#define IVI_MBs_PER_TILE(tile_width, tile_height, mb_size)
calculate number of macroblocks in a tile
Definition: ivi.h:286
const uint8_t ff_reverse[256]
Definition: reverse.c:23
int8_t b_mv_y
second motion vector (y component)
Definition: ivi.h:120
av_cold int ff_ivi_decode_close(AVCodecContext *avctx)
Close Indeo5 decoder and clean up its context.
Definition: ivi.c:1207
#define IVI_VLC_BITS
max number of bits of the ivi&#39;s huffman codes
Definition: ivi.h:49
int num_tiles
number of tiles in this band
Definition: ivi.h:175
int dst_buf
buffer index for the currently decoded frame
Definition: ivi.h:233
int16_t * ref_buf
pointer to the reference frame buffer (for motion compensation)
Definition: ivi.h:153
int size
Definition: avcodec.h:1446
const char * b
Definition: vf_curves.c:116
uint8_t eob_sym
end of block symbol
Definition: ivi.h:98
int ff_ivi_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
Definition: ivi.c:1061
int16_t * buf
pointer to the output buffer for this band
Definition: ivi.h:152
DSP functions (inverse transforms, motion compensations, wavelet recomposition) for Indeo Video Inter...
IVITile * tiles
array of tile descriptors
Definition: ivi.h:176
void(* ivi_mc_avg_func)(int16_t *buf, const int16_t *ref_buf1, const int16_t *ref_buf2, ptrdiff_t pitch, int mc_type, int mc_type2)
Definition: ivi.c:78
int is_halfpel
precision of the motion compensation: 0 - fullpel, 1 - halfpel
Definition: ivi.h:160
uint8_t chroma_bands
Definition: ivi.h:210
int(* decode_pic_hdr)(struct IVI45DecContext *ctx, AVCodecContext *avctx)
Definition: ivi.h:258
void av_frame_move_ref(AVFrame *dst, AVFrame *src)
Move everything contained in src to dst and reset src.
Definition: frame.c:582
int plane
plane number this band belongs to
Definition: ivi.h:145
int mb_size
Definition: ivi.h:132
int bufsize
band buffer size in bytes
Definition: ivi.h:183
uint8_t run
Definition: svq3.c:206
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
#define src
Definition: vp8dsp.c:254
static const IVIHuffDesc ivi_blk_huff_desc[8]
static block huffman tables
Definition: ivi.c:62
uint16_t height
Definition: ivi.h:196
uint8_t has_b_frames
Definition: ivi.h:252
void(* switch_buffers)(struct IVI45DecContext *ctx)
Definition: ivi.h:261
int height
Definition: ivi.h:148
Macro definitions for various function/variable attributes.
void ff_ivi_mc_8x8_no_delta(int16_t *buf, const int16_t *ref_buf, ptrdiff_t pitch, int mc_type)
motion compensation without adding delta
RVMapDesc * rv_map
ptr to the RLE table for this band
Definition: ivi.h:174
uint8_t xbits[16]
Definition: ivi.h:57
int8_t b_mv_x
second motion vector (x component)
Definition: ivi.h:119
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
static double cb(void *priv, double x, double y)
Definition: vf_geq.c:112
uint8_t uses_tiling
Definition: ivi.h:254
uint8_t luma_bands
Definition: ivi.h:209
void ff_ivi_recompose53(const IVIPlaneDesc *plane, uint8_t *dst, const ptrdiff_t dst_pitch)
5/3 wavelet recomposition filter for Indeo5
Definition: ivi_dsp.c:33
ptrdiff_t pitch
pitch associated with the buffers above
Definition: ivi.h:156
static int ivi_dec_tile_data_size(GetBitContext *gb)
Definition: ivi.c:471
VLC * tab
index of one of the predefined tables or "7" for custom one
Definition: ivi.h:66
uint8_t
#define av_cold
Definition: attributes.h:82
#define mb
const uint8_t * frame_data
input frame data pointer
Definition: ivi.h:222
const uint16_t * inter_base
quantization matrix for inter blocks
Definition: ivi.h:185
const uint8_t * data_ptr
ptr to the first byte of the band data
Definition: ivi.h:150
void ff_ivi_mc_avg_8x8_no_delta(int16_t *buf, const int16_t *ref_buf, const int16_t *ref_buf2, ptrdiff_t pitch, int mc_type, int mc_type2)
motion compensation without adding delta for B-frames
uint16_t pic_height
Definition: ivi.h:204
void ff_ivi_mc_4x4_delta(int16_t *buf, const int16_t *ref_buf, ptrdiff_t pitch, int mc_type)
4x4 block motion compensation with adding delta
int inherit_mv
tells if motion vector is inherited from reference macroblock
Definition: ivi.h:161
int16_t * bufs[4]
array of pointers to the band buffers
Definition: ivi.h:155
static AVFrame * frame
GetBitContext gb
Definition: ivi.h:214
const char data[16]
Definition: mxf.c:91
uint8_t * data
Definition: avcodec.h:1445
const uint8_t ff_ivi_vertical_scan_8x8[64]
Scan patterns shared between indeo4 and indeo5.
Definition: ivi.c:1228
static int get_bits_count(const GetBitContext *s)
Definition: get_bits.h:219
uint8_t cbp
coded block pattern
Definition: ivi.h:115
int qdelta_present
tells if Qdelta signal is present in the bitstream (Indeo5 only)
Definition: ivi.h:163
#define ff_dlog(a,...)
#define IVI5_IS_PROTECTED
Definition: ivi.h:50
bitstream reader API header.
static VLC_TYPE table_data[117592][2]
Definition: rv34.c:99
uint16_t pic_width
Definition: ivi.h:203
high precision timer, useful to profile code
int gop_invalid
Definition: ivi.h:264
int(* decode_band_hdr)(struct IVI45DecContext *ctx, IVIBandDesc *band, AVCodecContext *avctx)
Definition: ivi.h:259
#define FFALIGN(x, a)
Definition: macros.h:48
IVIPlaneDesc planes[3]
color planes
Definition: ivi.h:230
#define av_log(a,...)
const uint16_t * intra_base
quantization matrix for intra blocks
Definition: ivi.h:184
int width
Definition: ivi.h:147
int got_p_frame
Definition: ivi.h:270
static int ivi_decode_blocks(GetBitContext *gb, IVIBandDesc *band, IVITile *tile, AVCodecContext *avctx)
Definition: ivi.c:608
IVIHuffDesc cust_desc
pointer to the table associated with tab_sel
Definition: ivi.h:69
#define U(x)
Definition: vp56_arith.h:37
static int get_bits_left(GetBitContext *gb)
Definition: get_bits.h:814
int blk_size
block size
Definition: ivi.h:159
uint8_t runtab[256]
Definition: ivi.h:100
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
uint8_t corr[61 *2]
rvmap correction pairs
Definition: ivi.h:172
int32_t tab_sel
Definition: ivi.h:64
RVMapDesc rvmap_tabs[9]
local corrected copy of the static rvmap tables
Definition: ivi.h:215
#define AVERROR(e)
Definition: error.h:43
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:202
int show_indeo4_info
Definition: ivi.h:251
int is_indeo4
Definition: ivi.h:267
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:197
av_cold int ff_ivi_init_tiles(IVIPlaneDesc *planes, int tile_width, int tile_height)
Initialize tile and macroblock descriptors.
Definition: ivi.c:421
int ref_buf
inter frame reference buffer index
Definition: ivi.h:234
DCTransformPtr * dc_transform
Definition: ivi.h:179
This file contains structures and macros shared by both Indeo4 and Indeo5 decoders.
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
void ff_ivi_mc_4x4_no_delta(int16_t *buf, const int16_t *ref_buf, ptrdiff_t pitch, int mc_type)
4x4 block motion compensation without adding delta
int64_t max_pixels
The number of pixels per image to maximally accept.
Definition: avcodec.h:3243
int32_t num_rows
Definition: ivi.h:56
static int decode_band(IVI45DecContext *ctx, IVIBandDesc *band, AVCodecContext *avctx)
Decode an Indeo 4 or 5 band.
Definition: ivi.c:938
uint8_t esc_sym
escape symbol
Definition: ivi.h:99
static int ivi_create_huff_from_desc(const IVIHuffDesc *cb, VLC *vlc, int flag)
Definition: ivi.c:145
uint16_t width
Definition: ivi.h:195
void ff_ivi_mc_8x8_delta(int16_t *buf, const int16_t *ref_buf, ptrdiff_t pitch, int mc_type)
8x8 block motion compensation with adding delta
Definition: vlc.h:26
static uint16_t inv_bits(uint16_t val, int nbits)
Reverse "nbits" bits of the value "val" and return the result in the least significant bits...
Definition: ivi.c:123
run-value (RLE) table descriptor
Definition: ivi.h:97
static VLC ivi_blk_vlc_tabs[8]
static block Huffman tables
Definition: ivi.c:74
int inherit_qdelta
tells if quantiser delta is inherited from reference macroblock
Definition: ivi.h:162
empty frame with no data
Definition: ivi.h:46
static const struct @304 planes[]
AVFrame * p_frame
Definition: ivi.h:269
static int ivi_init_tiles(IVIBandDesc *band, IVITile *ref_tile, int p, int b, int t_height, int t_width)
Definition: ivi.c:382
uint8_t num_bands
number of bands this plane subdivided into
Definition: ivi.h:197
const uint8_t ff_ivi_horizontal_scan_8x8[64]
Definition: ivi.c:1239
const RVMapDesc ff_ivi_rvmap_tabs[9]
Run-value (RLE) tables.
Definition: ivi.c:1258
#define FFMIN(a, b)
Definition: common.h:96
int is_scalable
Definition: ivi.h:221
#define FFSIGN(a)
Definition: common.h:73
uint8_t w
Definition: llviddspenc.c:38
IVIMbInfo * mbs
array of macroblock descriptors
Definition: ivi.h:136
int32_t
AVFormatContext * ctx
Definition: movenc.c:48
int16_t * b_ref_buf
pointer to the second reference frame buffer (for motion compensation)
Definition: ivi.h:154
void ff_ivi_mc_avg_8x8_delta(int16_t *buf, const int16_t *ref_buf, const int16_t *ref_buf2, ptrdiff_t pitch, int mc_type, int mc_type2)
8x8 block motion compensation with adding delta
const uint8_t * inter_scale
quantization coefficient for inter blocks
Definition: ivi.h:187
static av_always_inline int get_vlc2(GetBitContext *s, VLC_TYPE(*table)[2], int bits, int max_depth)
Parse a vlc code.
Definition: get_bits.h:762
int ff_ivi_dec_huff_desc(GetBitContext *gb, int desc_coded, int which_tab, IVIHuffTab *huff_tab, AVCodecContext *avctx)
Decode a huffman codebook descriptor from the bitstream and select specified huffman table...
Definition: ivi.c:226
static int ivi_dc_transform(IVIBandDesc *band, int *prev_dc, int buf_offs, int blk_size)
Definition: ivi.c:488
static volatile int checksum
Definition: adler32.c:30
static void ivi_huff_desc_copy(IVIHuffDesc *dst, const IVIHuffDesc *src)
Definition: ivi.c:206
if(ret< 0)
Definition: vf_mcdeint.c:279
int8_t q_delta
quant delta
Definition: ivi.h:116
uint32_t frame_size
frame size in bytes
Definition: ivi.h:224
#define INIT_VLC_LE
Definition: vlc.h:54
#define mc
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
Definition: error.h:62
int table_allocated
Definition: vlc.h:29
static VLC ivi_mb_vlc_tabs[8]
static macroblock Huffman tables
Definition: ivi.c:73
int ypos
Definition: ivi.h:129
IVIHuffTab mb_vlc
current macroblock table descriptor
Definition: ivi.h:238
int is_2d_trans
1 indicates that the two-dimensional inverse transform is used
Definition: ivi.h:180
Libavcodec external API header.
int glob_quant
quant base for this band
Definition: ivi.h:165
typedef void(RENAME(mix_any_func_type))
enum AVCodecID codec_id
Definition: avcodec.h:1543
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:257
static int init_get_bits8(GetBitContext *s, const uint8_t *buffer, int byte_size)
Initialize GetBitContext.
Definition: get_bits.h:650
void ff_ivi_recompose_haar(const IVIPlaneDesc *plane, uint8_t *dst, const ptrdiff_t dst_pitch)
Haar wavelet recomposition filter for Indeo 4.
Definition: ivi_dsp.c:190
int height
Definition: ivi.h:131
av_cold int ff_ivi_init_planes(AVCodecContext *avctx, IVIPlaneDesc *planes, const IVIPicConfig *cfg, int is_indeo4)
Initialize planes (prepares descriptors, allocates buffers etc).
Definition: ivi.c:305
main external API structure.
Definition: avcodec.h:1533
int aheight
aligned band height
Definition: ivi.h:149
int is_empty
= 1 if this tile doesn&#39;t contain any data
Definition: ivi.h:133
static const float bands[]
int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
Get a buffer for a frame.
Definition: decode.c:1918
int8_t valtab[256]
Definition: ivi.h:101
int num_corr
number of correction entries
Definition: ivi.h:171
static int ivi_scale_mv(int mv, int mv_scale)
scale motion vector
Definition: ivi.h:293
information for Indeo tile
Definition: ivi.h:127
void * buf
Definition: avisynth_c.h:690
static unsigned int get_bits1(GetBitContext *s)
Definition: get_bits.h:487
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:72
uint8_t gop_flags
Definition: ivi.h:248
uint8_t uses_haar
Definition: ivi.h:255
IVIBandDesc * bands
array of band descriptors
Definition: ivi.h:198
int32_t checksum
for debug purposes
Definition: ivi.h:181
int rvmap_sel
rvmap table selector
Definition: ivi.h:173
int8_t mv_x
motion vector (x component)
Definition: ivi.h:117
int8_t mv_y
motion vector (y component)
Definition: ivi.h:118
#define IVI_TOSIGNED(val)
convert unsigned values into signed ones (the sign is in the LSB)
Definition: ivi.h:290
int mb_size
macroblock size
Definition: ivi.h:158
static av_cold void ivi_free_buffers(IVIPlaneDesc *planes)
Definition: ivi.c:282
huffman codebook descriptor
Definition: ivi.h:55
static unsigned int get_bits_long(GetBitContext *s, int n)
Read 0-32 bits.
Definition: get_bits.h:531
IVIMbInfo * ref_mbs
ptr to the macroblock descriptors of the reference tile
Definition: ivi.h:137
int xpos
Definition: ivi.h:128
const uint8_t * quant
static void ivi_output_plane(IVIPlaneDesc *plane, uint8_t *dst, ptrdiff_t dst_pitch)
Definition: ivi.c:905
void avpriv_report_missing_feature(void *avc, const char *msg,...) av_printf_format(2
Log a generic warning message about a missing feature.
void(* ivi_mc_func)(int16_t *buf, const int16_t *ref_buf, ptrdiff_t pitch, int mc_type)
Definition: ivi.c:76
IVIHuffTab blk_vlc
current block table descriptor
Definition: ivi.h:239
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:240
int16_t xpos
Definition: ivi.h:111
int band_num
band number
Definition: ivi.h:146
common internal api header.
int buf_invalid[4]
Definition: ivi.h:265
int transform_size
Definition: ivi.h:178
void ff_ivi_mc_avg_4x4_delta(int16_t *buf, const int16_t *ref_buf, const int16_t *ref_buf2, ptrdiff_t pitch, int mc_type, int mc_type2)
4x4 block motion compensation with adding delta
#define flag(name)
Definition: cbs_av1.c:598
#define INIT_VLC_USE_NEW_STATIC
Definition: vlc.h:55
VLC cust_tab
custom Huffman codebook descriptor
Definition: ivi.h:70
int av_image_check_size2(unsigned int w, unsigned int h, int64_t max_pixels, enum AVPixelFormat pix_fmt, int log_offset, void *log_ctx)
Check if the given dimension of an image is valid, meaning that all bytes of a plane of an image with...
Definition: imgutils.c:253
const uint8_t * scan
ptr to the scan pattern
Definition: ivi.h:166
void * priv_data
Definition: avcodec.h:1560
int width
Definition: ivi.h:130
int len
int checksum_present
Definition: ivi.h:182
uint8_t has_transp
transparency mode status: 1 - enabled
Definition: ivi.h:253
VLC_TYPE(* table)[2]
code, bits
Definition: vlc.h:28
static const uint8_t * align_get_bits(GetBitContext *s)
Definition: get_bits.h:658
void ff_ivi_mc_avg_4x4_no_delta(int16_t *buf, const int16_t *ref_buf, const int16_t *ref_buf2, ptrdiff_t pitch, int mc_type, int mc_type2)
4x4 block motion compensation without adding delta for B-frames
int(* decode_mb_info)(struct IVI45DecContext *ctx, IVIBandDesc *band, IVITile *tile, AVCodecContext *avctx)
Definition: ivi.h:260
int16_t ypos
Definition: ivi.h:112
information for Indeo macroblock (16x16, 8x8 or 4x4)
Definition: ivi.h:110
IVIHuffTab blk_vlc
vlc table for decoding block data
Definition: ivi.h:169
#define av_freep(p)
av_cold void ff_ivi_init_static_vlc(void)
Initialize static codes used for macroblock and block decoding.
Definition: ivi.c:179
const uint8_t * intra_scale
quantization coefficient for intra blocks
Definition: ivi.h:186
color plane (luma or chroma) information
Definition: ivi.h:194
#define VLC_TYPE
Definition: vlc.h:24
uint8_t uses_fullpel
Definition: ivi.h:256
#define FFSWAP(type, a, b)
Definition: common.h:99
uint32_t buf_offs
address in the output buffer for this mb
Definition: ivi.h:113
BYTE int dst_pitch
Definition: avisynth_c.h:813
int b_ref_buf
second reference frame buffer index
Definition: ivi.h:236
information for Indeo wavelet band
Definition: ivi.h:144
This structure stores compressed data.
Definition: avcodec.h:1422
void ff_free_vlc(VLC *vlc)
Definition: bitstream.c:359
static int ivi_mc(IVIBandDesc *band, ivi_mc_func mc, ivi_mc_avg_func mc_avg, int offs, int mv_x, int mv_y, int mv_x2, int mv_y2, int mc_type, int mc_type2)
Definition: ivi.c:82
int frame_type
Definition: ivi.h:218
void * av_mallocz_array(size_t nmemb, size_t size)
Allocate a memory block for an array with av_mallocz().
Definition: mem.c:191
int data_size
size of the data in bytes
Definition: ivi.h:134
static int ivi_decode_coded_blocks(GetBitContext *gb, IVIBandDesc *band, ivi_mc_func mc, ivi_mc_avg_func mc_avg, int mv_x, int mv_y, int mv_x2, int mv_y2, int *prev_dc, int is_intra, int mc_type, int mc_type2, uint32_t quant, int offs, AVCodecContext *avctx)
Definition: ivi.c:497