FFmpeg
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
indeo5.c
Go to the documentation of this file.
1 /*
2  * Indeo Video Interactive v5 compatible decoder
3  * Copyright (c) 2009 Maxim Poliakovski
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 /**
23  * @file
24  * Indeo Video Interactive version 5 decoder
25  *
26  * Indeo5 data is usually transported within .avi or .mov files.
27  * Known FOURCCs: 'IV50'
28  */
29 
30 #define BITSTREAM_READER_LE
31 #include "avcodec.h"
32 #include "get_bits.h"
33 #include "dsputil.h"
34 #include "ivi_dsp.h"
35 #include "ivi_common.h"
36 #include "indeo5data.h"
37 
38 /**
39  * Indeo5 frame types.
40  */
41 enum {
43  FRAMETYPE_INTER = 1, ///< non-droppable P-frame
44  FRAMETYPE_INTER_SCAL = 2, ///< droppable P-frame used in the scalability mode
45  FRAMETYPE_INTER_NOREF = 3, ///< droppable P-frame
46  FRAMETYPE_NULL = 4 ///< empty frame with no data
47 };
48 
49 #define IVI5_PIC_SIZE_ESC 15
50 
51 /**
52  * Decode Indeo5 GOP (Group of pictures) header.
53  * This header is present in key frames only.
54  * It defines parameters for all frames in a GOP.
55  *
56  * @param[in,out] ctx ptr to the decoder context
57  * @param[in] avctx ptr to the AVCodecContext
58  * @return result code: 0 = OK, -1 = error
59  */
61 {
62  int result, i, p, tile_size, pic_size_indx, mb_size, blk_size, is_scalable;
63  int quant_mat, blk_size_changed = 0;
64  IVIBandDesc *band, *band1, *band2;
65  IVIPicConfig pic_conf;
66 
67  ctx->gop_flags = get_bits(&ctx->gb, 8);
68 
69  ctx->gop_hdr_size = (ctx->gop_flags & 1) ? get_bits(&ctx->gb, 16) : 0;
70 
71  if (ctx->gop_flags & IVI5_IS_PROTECTED)
72  ctx->lock_word = get_bits_long(&ctx->gb, 32);
73 
74  tile_size = (ctx->gop_flags & 0x40) ? 64 << get_bits(&ctx->gb, 2) : 0;
75  if (tile_size > 256) {
76  av_log(avctx, AV_LOG_ERROR, "Invalid tile size: %d\n", tile_size);
77  return -1;
78  }
79 
80  /* decode number of wavelet bands */
81  /* num_levels * 3 + 1 */
82  pic_conf.luma_bands = get_bits(&ctx->gb, 2) * 3 + 1;
83  pic_conf.chroma_bands = get_bits1(&ctx->gb) * 3 + 1;
84  is_scalable = pic_conf.luma_bands != 1 || pic_conf.chroma_bands != 1;
85  if (is_scalable && (pic_conf.luma_bands != 4 || pic_conf.chroma_bands != 1)) {
86  av_log(avctx, AV_LOG_ERROR, "Scalability: unsupported subdivision! Luma bands: %d, chroma bands: %d\n",
87  pic_conf.luma_bands, pic_conf.chroma_bands);
88  return -1;
89  }
90 
91  pic_size_indx = get_bits(&ctx->gb, 4);
92  if (pic_size_indx == IVI5_PIC_SIZE_ESC) {
93  pic_conf.pic_height = get_bits(&ctx->gb, 13);
94  pic_conf.pic_width = get_bits(&ctx->gb, 13);
95  } else {
96  pic_conf.pic_height = ivi5_common_pic_sizes[pic_size_indx * 2 + 1] << 2;
97  pic_conf.pic_width = ivi5_common_pic_sizes[pic_size_indx * 2 ] << 2;
98  }
99 
100  if (ctx->gop_flags & 2) {
101  av_log(avctx, AV_LOG_ERROR, "YV12 picture format not supported!\n");
102  return -1;
103  }
104 
105  pic_conf.chroma_height = (pic_conf.pic_height + 3) >> 2;
106  pic_conf.chroma_width = (pic_conf.pic_width + 3) >> 2;
107 
108  if (!tile_size) {
109  pic_conf.tile_height = pic_conf.pic_height;
110  pic_conf.tile_width = pic_conf.pic_width;
111  } else {
112  pic_conf.tile_height = pic_conf.tile_width = tile_size;
113  }
114 
115  /* check if picture layout was changed and reallocate buffers */
116  if (ivi_pic_config_cmp(&pic_conf, &ctx->pic_conf)) {
117  result = ff_ivi_init_planes(ctx->planes, &pic_conf);
118  if (result) {
119  av_log(avctx, AV_LOG_ERROR, "Couldn't reallocate color planes!\n");
120  return -1;
121  }
122  ctx->pic_conf = pic_conf;
123  ctx->is_scalable = is_scalable;
124  blk_size_changed = 1; /* force reallocation of the internal structures */
125  }
126 
127  for (p = 0; p <= 1; p++) {
128  for (i = 0; i < (!p ? pic_conf.luma_bands : pic_conf.chroma_bands); i++) {
129  band = &ctx->planes[p].bands[i];
130 
131  band->is_halfpel = get_bits1(&ctx->gb);
132 
133  mb_size = get_bits1(&ctx->gb);
134  blk_size = 8 >> get_bits1(&ctx->gb);
135  mb_size = blk_size << !mb_size;
136 
137  if (p==0 && blk_size==4) {
138  av_log(avctx, AV_LOG_ERROR, "4x4 luma blocks are unsupported!\n");
139  return AVERROR_PATCHWELCOME;
140  }
141 
142  blk_size_changed = mb_size != band->mb_size || blk_size != band->blk_size;
143  if (blk_size_changed) {
144  band->mb_size = mb_size;
145  band->blk_size = blk_size;
146  }
147 
148  if (get_bits1(&ctx->gb)) {
149  av_log(avctx, AV_LOG_ERROR, "Extended transform info encountered!\n");
150  return -1;
151  }
152 
153  /* select transform function and scan pattern according to plane and band number */
154  switch ((p << 2) + i) {
155  case 0:
158  band->scan = ff_zigzag_direct;
159  band->transform_size= 8;
160  break;
161 
162  case 1:
166  band->transform_size= 8;
167  break;
168 
169  case 2:
173  band->transform_size= 8;
174  break;
175 
176  case 3:
180  band->transform_size= 8;
181  break;
182 
183  case 4:
187  band->transform_size= 4;
188  break;
189  }
190 
193 
194  /* select dequant matrix according to plane and band number */
195  if (!p) {
196  quant_mat = (pic_conf.luma_bands > 1) ? i+1 : 0;
197  } else {
198  quant_mat = 5;
199  }
200 
201  if (band->blk_size == 8) {
202  if(quant_mat >= 5){
203  av_log(avctx, AV_LOG_ERROR, "quant_mat %d too large!\n", quant_mat);
204  return -1;
205  }
206  band->intra_base = &ivi5_base_quant_8x8_intra[quant_mat][0];
207  band->inter_base = &ivi5_base_quant_8x8_inter[quant_mat][0];
208  band->intra_scale = &ivi5_scale_quant_8x8_intra[quant_mat][0];
209  band->inter_scale = &ivi5_scale_quant_8x8_inter[quant_mat][0];
210  } else {
215  }
216 
217  if (get_bits(&ctx->gb, 2)) {
218  av_log(avctx, AV_LOG_ERROR, "End marker missing!\n");
219  return -1;
220  }
221  }
222  }
223 
224  /* copy chroma parameters into the 2nd chroma plane */
225  for (i = 0; i < pic_conf.chroma_bands; i++) {
226  band1 = &ctx->planes[1].bands[i];
227  band2 = &ctx->planes[2].bands[i];
228 
229  band2->width = band1->width;
230  band2->height = band1->height;
231  band2->mb_size = band1->mb_size;
232  band2->blk_size = band1->blk_size;
233  band2->is_halfpel = band1->is_halfpel;
234  band2->intra_base = band1->intra_base;
235  band2->inter_base = band1->inter_base;
236  band2->intra_scale = band1->intra_scale;
237  band2->inter_scale = band1->inter_scale;
238  band2->scan = band1->scan;
239  band2->inv_transform = band1->inv_transform;
240  band2->dc_transform = band1->dc_transform;
241  band2->is_2d_trans = band1->is_2d_trans;
242  band2->transform_size= band1->transform_size;
243  }
244 
245  /* reallocate internal structures if needed */
246  if (blk_size_changed) {
247  result = ff_ivi_init_tiles(ctx->planes, pic_conf.tile_width,
248  pic_conf.tile_height);
249  if (result) {
250  av_log(avctx, AV_LOG_ERROR,
251  "Couldn't reallocate internal structures!\n");
252  return -1;
253  }
254  }
255 
256  if (ctx->gop_flags & 8) {
257  if (get_bits(&ctx->gb, 3)) {
258  av_log(avctx, AV_LOG_ERROR, "Alignment bits are not zero!\n");
259  return -1;
260  }
261 
262  if (get_bits1(&ctx->gb))
263  skip_bits_long(&ctx->gb, 24); /* skip transparency fill color */
264  }
265 
266  align_get_bits(&ctx->gb);
267 
268  skip_bits(&ctx->gb, 23); /* FIXME: unknown meaning */
269 
270  /* skip GOP extension if any */
271  if (get_bits1(&ctx->gb)) {
272  do {
273  i = get_bits(&ctx->gb, 16);
274  } while (i & 0x8000);
275  }
276 
277  align_get_bits(&ctx->gb);
278 
279  return 0;
280 }
281 
282 
283 /**
284  * Skip a header extension.
285  *
286  * @param[in,out] gb the GetBit context
287  */
288 static inline void skip_hdr_extension(GetBitContext *gb)
289 {
290  int i, len;
291 
292  do {
293  len = get_bits(gb, 8);
294  for (i = 0; i < len; i++) skip_bits(gb, 8);
295  } while(len);
296 }
297 
298 
299 /**
300  * Decode Indeo5 picture header.
301  *
302  * @param[in,out] ctx ptr to the decoder context
303  * @param[in] avctx ptr to the AVCodecContext
304  * @return result code: 0 = OK, -1 = error
305  */
307 {
308  if (get_bits(&ctx->gb, 5) != 0x1F) {
309  av_log(avctx, AV_LOG_ERROR, "Invalid picture start code!\n");
310  return -1;
311  }
312 
313  ctx->prev_frame_type = ctx->frame_type;
314  ctx->frame_type = get_bits(&ctx->gb, 3);
315  if (ctx->frame_type >= 5) {
316  av_log(avctx, AV_LOG_ERROR, "Invalid frame type: %d \n", ctx->frame_type);
317  return -1;
318  }
319 
320  ctx->frame_num = get_bits(&ctx->gb, 8);
321 
322  if (ctx->frame_type == FRAMETYPE_INTRA) {
323  ctx->gop_invalid = 1;
324  if (decode_gop_header(ctx, avctx)) {
325  av_log(avctx, AV_LOG_ERROR, "Invalid GOP header, skipping frames.\n");
326  return AVERROR_INVALIDDATA;
327  }
328  ctx->gop_invalid = 0;
329  }
330 
331  if (ctx->frame_type == FRAMETYPE_INTER_SCAL && !ctx->is_scalable) {
332  av_log(avctx, AV_LOG_ERROR, "Scalable inter frame in non scaleable stream\n");
334  return AVERROR_INVALIDDATA;
335  }
336 
337  if (ctx->frame_type != FRAMETYPE_NULL) {
338  ctx->frame_flags = get_bits(&ctx->gb, 8);
339 
340  ctx->pic_hdr_size = (ctx->frame_flags & 1) ? get_bits_long(&ctx->gb, 24) : 0;
341 
342  ctx->checksum = (ctx->frame_flags & 0x10) ? get_bits(&ctx->gb, 16) : 0;
343 
344  /* skip unknown extension if any */
345  if (ctx->frame_flags & 0x20)
346  skip_hdr_extension(&ctx->gb); /* XXX: untested */
347 
348  /* decode macroblock huffman codebook */
349  if (ff_ivi_dec_huff_desc(&ctx->gb, ctx->frame_flags & 0x40, IVI_MB_HUFF, &ctx->mb_vlc, avctx))
350  return -1;
351 
352  skip_bits(&ctx->gb, 3); /* FIXME: unknown meaning! */
353  }
354 
355  align_get_bits(&ctx->gb);
356 
357  return 0;
358 }
359 
360 
361 /**
362  * Decode Indeo5 band header.
363  *
364  * @param[in,out] ctx ptr to the decoder context
365  * @param[in,out] band ptr to the band descriptor
366  * @param[in] avctx ptr to the AVCodecContext
367  * @return result code: 0 = OK, -1 = error
368  */
370  AVCodecContext *avctx)
371 {
372  int i;
373  uint8_t band_flags;
374 
375  band_flags = get_bits(&ctx->gb, 8);
376 
377  if (band_flags & 1) {
378  band->is_empty = 1;
379  return 0;
380  }
381 
382  band->data_size = (ctx->frame_flags & 0x80) ? get_bits_long(&ctx->gb, 24) : 0;
383 
384  band->inherit_mv = band_flags & 2;
385  band->inherit_qdelta = band_flags & 8;
386  band->qdelta_present = band_flags & 4;
387  if (!band->qdelta_present) band->inherit_qdelta = 1;
388 
389  /* decode rvmap probability corrections if any */
390  band->num_corr = 0; /* there are no corrections */
391  if (band_flags & 0x10) {
392  band->num_corr = get_bits(&ctx->gb, 8); /* get number of correction pairs */
393  if (band->num_corr > 61) {
394  av_log(avctx, AV_LOG_ERROR, "Too many corrections: %d\n",
395  band->num_corr);
396  return -1;
397  }
398 
399  /* read correction pairs */
400  for (i = 0; i < band->num_corr * 2; i++)
401  band->corr[i] = get_bits(&ctx->gb, 8);
402  }
403 
404  /* select appropriate rvmap table for this band */
405  band->rvmap_sel = (band_flags & 0x40) ? get_bits(&ctx->gb, 3) : 8;
406 
407  /* decode block huffman codebook */
408  if (ff_ivi_dec_huff_desc(&ctx->gb, band_flags & 0x80, IVI_BLK_HUFF, &band->blk_vlc, avctx))
409  return -1;
410 
411  band->checksum_present = get_bits1(&ctx->gb);
412  if (band->checksum_present)
413  band->checksum = get_bits(&ctx->gb, 16);
414 
415  band->glob_quant = get_bits(&ctx->gb, 5);
416 
417  /* skip unknown extension if any */
418  if (band_flags & 0x20) { /* XXX: untested */
419  align_get_bits(&ctx->gb);
420  skip_hdr_extension(&ctx->gb);
421  }
422 
423  align_get_bits(&ctx->gb);
424 
425  return 0;
426 }
427 
428 
429 /**
430  * Decode info (block type, cbp, quant delta, motion vector)
431  * for all macroblocks in the current tile.
432  *
433  * @param[in,out] ctx ptr to the decoder context
434  * @param[in,out] band ptr to the band descriptor
435  * @param[in,out] tile ptr to the tile descriptor
436  * @param[in] avctx ptr to the AVCodecContext
437  * @return result code: 0 = OK, -1 = error
438  */
440  IVITile *tile, AVCodecContext *avctx)
441 {
442  int x, y, mv_x, mv_y, mv_delta, offs, mb_offset,
443  mv_scale, blks_per_mb, s;
444  IVIMbInfo *mb, *ref_mb;
445  int row_offset = band->mb_size * band->pitch;
446 
447  mb = tile->mbs;
448  ref_mb = tile->ref_mbs;
449  offs = tile->ypos * band->pitch + tile->xpos;
450 
451  if (!ref_mb &&
452  ((band->qdelta_present && band->inherit_qdelta) || band->inherit_mv))
453  return AVERROR_INVALIDDATA;
454 
455  if (tile->num_MBs != IVI_MBs_PER_TILE(tile->width, tile->height, band->mb_size)) {
456  av_log(avctx, AV_LOG_ERROR, "Allocated tile size %d mismatches parameters %d\n",
457  tile->num_MBs, IVI_MBs_PER_TILE(tile->width, tile->height, band->mb_size));
458  return AVERROR_INVALIDDATA;
459  }
460 
461  /* scale factor for motion vectors */
462  mv_scale = (ctx->planes[0].bands[0].mb_size >> 3) - (band->mb_size >> 3);
463  mv_x = mv_y = 0;
464 
465  for (y = tile->ypos; y < (tile->ypos + tile->height); y += band->mb_size) {
466  mb_offset = offs;
467 
468  for (x = tile->xpos; x < (tile->xpos + tile->width); x += band->mb_size) {
469  mb->xpos = x;
470  mb->ypos = y;
471  mb->buf_offs = mb_offset;
472 
473  if (get_bits1(&ctx->gb)) {
474  if (ctx->frame_type == FRAMETYPE_INTRA) {
475  av_log(avctx, AV_LOG_ERROR, "Empty macroblock in an INTRA picture!\n");
476  return -1;
477  }
478  mb->type = 1; /* empty macroblocks are always INTER */
479  mb->cbp = 0; /* all blocks are empty */
480 
481  mb->q_delta = 0;
482  if (!band->plane && !band->band_num && (ctx->frame_flags & 8)) {
483  mb->q_delta = get_vlc2(&ctx->gb, ctx->mb_vlc.tab->table,
484  IVI_VLC_BITS, 1);
485  mb->q_delta = IVI_TOSIGNED(mb->q_delta);
486  }
487 
488  mb->mv_x = mb->mv_y = 0; /* no motion vector coded */
489  if (band->inherit_mv && ref_mb){
490  /* motion vector inheritance */
491  if (mv_scale) {
492  mb->mv_x = ivi_scale_mv(ref_mb->mv_x, mv_scale);
493  mb->mv_y = ivi_scale_mv(ref_mb->mv_y, mv_scale);
494  } else {
495  mb->mv_x = ref_mb->mv_x;
496  mb->mv_y = ref_mb->mv_y;
497  }
498  }
499  } else {
500  if (band->inherit_mv && ref_mb) {
501  mb->type = ref_mb->type; /* copy mb_type from corresponding reference mb */
502  } else if (ctx->frame_type == FRAMETYPE_INTRA) {
503  mb->type = 0; /* mb_type is always INTRA for intra-frames */
504  } else {
505  mb->type = get_bits1(&ctx->gb);
506  }
507 
508  blks_per_mb = band->mb_size != band->blk_size ? 4 : 1;
509  mb->cbp = get_bits(&ctx->gb, blks_per_mb);
510 
511  mb->q_delta = 0;
512  if (band->qdelta_present) {
513  if (band->inherit_qdelta) {
514  if (ref_mb) mb->q_delta = ref_mb->q_delta;
515  } else if (mb->cbp || (!band->plane && !band->band_num &&
516  (ctx->frame_flags & 8))) {
517  mb->q_delta = get_vlc2(&ctx->gb, ctx->mb_vlc.tab->table,
518  IVI_VLC_BITS, 1);
519  mb->q_delta = IVI_TOSIGNED(mb->q_delta);
520  }
521  }
522 
523  if (!mb->type) {
524  mb->mv_x = mb->mv_y = 0; /* there is no motion vector in intra-macroblocks */
525  } else {
526  if (band->inherit_mv && ref_mb){
527  /* motion vector inheritance */
528  if (mv_scale) {
529  mb->mv_x = ivi_scale_mv(ref_mb->mv_x, mv_scale);
530  mb->mv_y = ivi_scale_mv(ref_mb->mv_y, mv_scale);
531  } else {
532  mb->mv_x = ref_mb->mv_x;
533  mb->mv_y = ref_mb->mv_y;
534  }
535  } else {
536  /* decode motion vector deltas */
537  mv_delta = get_vlc2(&ctx->gb, ctx->mb_vlc.tab->table,
538  IVI_VLC_BITS, 1);
539  mv_y += IVI_TOSIGNED(mv_delta);
540  mv_delta = get_vlc2(&ctx->gb, ctx->mb_vlc.tab->table,
541  IVI_VLC_BITS, 1);
542  mv_x += IVI_TOSIGNED(mv_delta);
543  mb->mv_x = mv_x;
544  mb->mv_y = mv_y;
545  }
546  }
547  }
548 
549  s= band->is_halfpel;
550  if (mb->type)
551  if ( x + (mb->mv_x >>s) + (y+ (mb->mv_y >>s))*band->pitch < 0 ||
552  x + ((mb->mv_x+s)>>s) + band->mb_size - 1
553  + (y+band->mb_size - 1 +((mb->mv_y+s)>>s))*band->pitch > band->bufsize - 1) {
554  av_log(avctx, AV_LOG_ERROR, "motion vector %d %d outside reference\n", x*s + mb->mv_x, y*s + mb->mv_y);
555  return AVERROR_INVALIDDATA;
556  }
557 
558  mb++;
559  if (ref_mb)
560  ref_mb++;
561  mb_offset += band->mb_size;
562  }
563 
564  offs += row_offset;
565  }
566 
567  align_get_bits(&ctx->gb);
568 
569  return 0;
570 }
571 
572 
573 /**
574  * Switch buffers.
575  *
576  * @param[in,out] ctx ptr to the decoder context
577  */
579 {
580  switch (ctx->prev_frame_type) {
581  case FRAMETYPE_INTRA:
582  case FRAMETYPE_INTER:
583  ctx->buf_switch ^= 1;
584  ctx->dst_buf = ctx->buf_switch;
585  ctx->ref_buf = ctx->buf_switch ^ 1;
586  break;
588  if (!ctx->inter_scal) {
589  ctx->ref2_buf = 2;
590  ctx->inter_scal = 1;
591  }
592  FFSWAP(int, ctx->dst_buf, ctx->ref2_buf);
593  ctx->ref_buf = ctx->ref2_buf;
594  break;
596  break;
597  }
598 
599  switch (ctx->frame_type) {
600  case FRAMETYPE_INTRA:
601  ctx->buf_switch = 0;
602  /* FALLTHROUGH */
603  case FRAMETYPE_INTER:
604  ctx->inter_scal = 0;
605  ctx->dst_buf = ctx->buf_switch;
606  ctx->ref_buf = ctx->buf_switch ^ 1;
607  break;
610  case FRAMETYPE_NULL:
611  break;
612  }
613 }
614 
615 
617 {
618  return ctx->frame_type != FRAMETYPE_NULL;
619 }
620 
621 
622 /**
623  * Initialize Indeo5 decoder.
624  */
626 {
627  IVI45DecContext *ctx = avctx->priv_data;
628  int result;
629 
631 
632  /* copy rvmap tables in our context so we can apply changes to them */
633  memcpy(ctx->rvmap_tabs, ff_ivi_rvmap_tabs, sizeof(ff_ivi_rvmap_tabs));
634 
635  /* set the initial picture layout according to the basic profile:
636  there is only one band per plane (no scalability), only one tile (no local decoding)
637  and picture format = YVU9 */
638  ctx->pic_conf.pic_width = avctx->width;
639  ctx->pic_conf.pic_height = avctx->height;
640  ctx->pic_conf.chroma_width = (avctx->width + 3) >> 2;
641  ctx->pic_conf.chroma_height = (avctx->height + 3) >> 2;
642  ctx->pic_conf.tile_width = avctx->width;
643  ctx->pic_conf.tile_height = avctx->height;
644  ctx->pic_conf.luma_bands = ctx->pic_conf.chroma_bands = 1;
645 
646  result = ff_ivi_init_planes(ctx->planes, &ctx->pic_conf);
647  if (result) {
648  av_log(avctx, AV_LOG_ERROR, "Couldn't allocate color planes!\n");
649  return -1;
650  }
651 
652  ctx->buf_switch = 0;
653  ctx->inter_scal = 0;
654 
660 
661  avctx->pix_fmt = AV_PIX_FMT_YUV410P;
662 
663  return 0;
664 }
665 
667  .name = "indeo5",
668  .type = AVMEDIA_TYPE_VIDEO,
669  .id = AV_CODEC_ID_INDEO5,
670  .priv_data_size = sizeof(IVI45DecContext),
671  .init = decode_init,
674  .long_name = NULL_IF_CONFIG_SMALL("Intel Indeo Video Interactive 5"),
675  .capabilities = CODEC_CAP_DR1,
676 };