lavc: use designated initialisers for all codecs.
[ffmpeg.git] / libavcodec / indeo3.c
1 /*
2  * Intel Indeo 3 (IV31, IV32, etc.) video decoder for ffmpeg
3  * written, produced, and directed by Alan Smithee
4  *
5  * This file is part of Libav.
6  *
7  * Libav 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  * Libav 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 Libav; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21
22 #include <stdio.h>
23 #include <stdlib.h>
24 #include <string.h>
25
26 #include "libavutil/imgutils.h"
27 #include "avcodec.h"
28 #include "dsputil.h"
29 #include "bytestream.h"
30
31 #include "indeo3data.h"
32
33 typedef struct
34 {
35     uint8_t *Ybuf;
36     uint8_t *Ubuf;
37     uint8_t *Vbuf;
38     unsigned short y_w, y_h;
39     unsigned short uv_w, uv_h;
40 } YUVBufs;
41
42 typedef struct Indeo3DecodeContext {
43     AVCodecContext *avctx;
44     int width, height;
45     AVFrame frame;
46
47     uint8_t *buf;
48     YUVBufs iv_frame[2];
49     YUVBufs *cur_frame;
50     YUVBufs *ref_frame;
51
52     uint8_t *ModPred;
53     uint8_t *corrector_type;
54 } Indeo3DecodeContext;
55
56 static const uint8_t corrector_type_0[24] = {
57     195, 159, 133, 115, 101,  93,  87,  77,
58     195, 159, 133, 115, 101,  93,  87,  77,
59     128,  79,  79,  79,  79,  79,  79,  79
60 };
61
62 static const uint8_t corrector_type_2[8] = { 9, 7, 6, 8, 5, 4, 3, 2 };
63
64 static av_cold int build_modpred(Indeo3DecodeContext *s)
65 {
66     int i, j;
67
68     if (!(s->ModPred = av_malloc(8 * 128)))
69         return AVERROR(ENOMEM);
70
71     for (i=0; i < 128; ++i) {
72         s->ModPred[i+0*128] = i >  126 ? 254 : 2*(i + 1 - ((i + 1) % 2));
73         s->ModPred[i+1*128] = i ==   7 ?  20 :
74                               i == 119 ||
75                               i == 120 ? 236 : 2*(i + 2 - ((i + 1) % 3));
76         s->ModPred[i+2*128] = i >  125 ? 248 : 2*(i + 2 - ((i + 2) % 4));
77         s->ModPred[i+3*128] =                  2*(i + 1 - ((i - 3) % 5));
78         s->ModPred[i+4*128] = i ==   8 ?  20 : 2*(i + 1 - ((i - 3) % 6));
79         s->ModPred[i+5*128] =                  2*(i + 4 - ((i + 3) % 7));
80         s->ModPred[i+6*128] = i >  123 ? 240 : 2*(i + 4 - ((i + 4) % 8));
81         s->ModPred[i+7*128] =                  2*(i + 5 - ((i + 4) % 9));
82     }
83
84     if (!(s->corrector_type = av_malloc(24 * 256)))
85         return AVERROR(ENOMEM);
86
87     for (i=0; i < 24; ++i) {
88         for (j=0; j < 256; ++j) {
89             s->corrector_type[i*256+j] = j < corrector_type_0[i]          ? 1 :
90                                          j < 248 || (i == 16 && j == 248) ? 0 :
91                                          corrector_type_2[j - 248];
92         }
93     }
94
95   return 0;
96 }
97
98 static av_cold int iv_alloc_frames(Indeo3DecodeContext *s)
99 {
100     int luma_width    = (s->width           + 3) & ~3,
101         luma_height   = (s->height          + 3) & ~3,
102         chroma_width  = ((luma_width  >> 2) + 3) & ~3,
103         chroma_height = ((luma_height >> 2) + 3) & ~3,
104         luma_pixels   = luma_width   * luma_height,
105         chroma_pixels = chroma_width * chroma_height,
106         i;
107     unsigned int bufsize = luma_pixels * 2 + luma_width * 3 +
108                           (chroma_pixels   + chroma_width) * 4;
109
110     av_freep(&s->buf);
111     if(!(s->buf = av_malloc(bufsize)))
112         return AVERROR(ENOMEM);
113     s->iv_frame[0].y_w = s->iv_frame[1].y_w = luma_width;
114     s->iv_frame[0].y_h = s->iv_frame[1].y_h = luma_height;
115     s->iv_frame[0].uv_w = s->iv_frame[1].uv_w = chroma_width;
116     s->iv_frame[0].uv_h = s->iv_frame[1].uv_h = chroma_height;
117
118     s->iv_frame[0].Ybuf = s->buf + luma_width;
119     i = luma_pixels + luma_width * 2;
120     s->iv_frame[1].Ybuf = s->buf + i;
121     i += (luma_pixels + luma_width);
122     s->iv_frame[0].Ubuf = s->buf + i;
123     i += (chroma_pixels + chroma_width);
124     s->iv_frame[1].Ubuf = s->buf + i;
125     i += (chroma_pixels + chroma_width);
126     s->iv_frame[0].Vbuf = s->buf + i;
127     i += (chroma_pixels + chroma_width);
128     s->iv_frame[1].Vbuf = s->buf + i;
129
130     for(i = 1; i <= luma_width; i++)
131         s->iv_frame[0].Ybuf[-i] = s->iv_frame[1].Ybuf[-i] =
132             s->iv_frame[0].Ubuf[-i] = 0x80;
133
134     for(i = 1; i <= chroma_width; i++) {
135         s->iv_frame[1].Ubuf[-i] = 0x80;
136         s->iv_frame[0].Vbuf[-i] = 0x80;
137         s->iv_frame[1].Vbuf[-i] = 0x80;
138         s->iv_frame[1].Vbuf[chroma_pixels+i-1] = 0x80;
139     }
140
141     return 0;
142 }
143
144 static av_cold void iv_free_func(Indeo3DecodeContext *s)
145 {
146     av_freep(&s->buf);
147     av_freep(&s->ModPred);
148     av_freep(&s->corrector_type);
149 }
150
151 struct ustr {
152     int xpos;
153     int ypos;
154     int width;
155     int height;
156     int split_flag;
157     int split_direction;
158     int usl7;
159 };
160
161
162 #define LV1_CHECK(buf1,rle_v3,lv1,lp2)  \
163     if((lv1 & 0x80) != 0) {             \
164         if(rle_v3 != 0)                 \
165             rle_v3 = 0;                 \
166         else {                          \
167             rle_v3 = 1;                 \
168             buf1 -= 2;                  \
169         }                               \
170     }                                   \
171     lp2 = 4;
172
173
174 #define RLE_V3_CHECK(buf1,rle_v1,rle_v2,rle_v3)  \
175     if(rle_v3 == 0) {                            \
176         rle_v2 = *buf1;                          \
177         rle_v1 = 1;                              \
178         if(rle_v2 > 32) {                        \
179             rle_v2 -= 32;                        \
180             rle_v1 = 0;                          \
181         }                                        \
182         rle_v3 = 1;                              \
183     }                                            \
184     buf1--;
185
186
187 #define LP2_CHECK(buf1,rle_v3,lp2)  \
188     if(lp2 == 0 && rle_v3 != 0)     \
189         rle_v3 = 0;                 \
190     else {                          \
191         buf1--;                     \
192         rle_v3 = 1;                 \
193     }
194
195
196 #define RLE_V2_CHECK(buf1,rle_v2, rle_v3,lp2) \
197     rle_v2--;                                 \
198     if(rle_v2 == 0) {                         \
199         rle_v3 = 0;                           \
200         buf1 += 2;                            \
201     }                                         \
202     lp2 = 4;
203
204 static void iv_Decode_Chunk(Indeo3DecodeContext *s,
205         uint8_t *cur, uint8_t *ref, int width, int height,
206         const uint8_t *buf1, int cb_offset, const uint8_t *hdr,
207         const uint8_t *buf2, int min_width_160)
208 {
209     uint8_t bit_buf;
210     unsigned int bit_pos, lv, lv1, lv2;
211     int *width_tbl, width_tbl_arr[10];
212     const signed char *ref_vectors;
213     uint8_t *cur_frm_pos, *ref_frm_pos, *cp, *cp2;
214     uint32_t *cur_lp, *ref_lp;
215     const uint32_t *correction_lp[2], *correctionloworder_lp[2], *correctionhighorder_lp[2];
216     uint8_t *correction_type_sp[2];
217     struct ustr strip_tbl[20], *strip;
218     int i, j, k, lp1, lp2, flag1, cmd, blks_width, blks_height, region_160_width,
219         rle_v1, rle_v2, rle_v3;
220     unsigned short res;
221
222     bit_buf = 0;
223     ref_vectors = NULL;
224
225     width_tbl = width_tbl_arr + 1;
226     i = (width < 0 ? width + 3 : width)/4;
227     for(j = -1; j < 8; j++)
228         width_tbl[j] = i * j;
229
230     strip = strip_tbl;
231
232     for(region_160_width = 0; region_160_width < (width - min_width_160); region_160_width += min_width_160);
233
234     strip->ypos = strip->xpos = 0;
235     for(strip->width = min_width_160; width > strip->width; strip->width *= 2);
236     strip->height = height;
237     strip->split_direction = 0;
238     strip->split_flag = 0;
239     strip->usl7 = 0;
240
241     bit_pos = 0;
242
243     rle_v1 = rle_v2 = rle_v3 = 0;
244
245     while(strip >= strip_tbl) {
246         if(bit_pos <= 0) {
247             bit_pos = 8;
248             bit_buf = *buf1++;
249         }
250
251         bit_pos -= 2;
252         cmd = (bit_buf >> bit_pos) & 0x03;
253
254         if(cmd == 0) {
255             strip++;
256             if(strip >= strip_tbl + FF_ARRAY_ELEMS(strip_tbl)) {
257                 av_log(s->avctx, AV_LOG_WARNING, "out of range strip\n");
258                 break;
259             }
260             memcpy(strip, strip-1, sizeof(*strip));
261             strip->split_flag = 1;
262             strip->split_direction = 0;
263             strip->height = (strip->height > 8 ? ((strip->height+8)>>4)<<3 : 4);
264             continue;
265         } else if(cmd == 1) {
266             strip++;
267             if(strip >= strip_tbl + FF_ARRAY_ELEMS(strip_tbl)) {
268                 av_log(s->avctx, AV_LOG_WARNING, "out of range strip\n");
269                 break;
270             }
271             memcpy(strip, strip-1, sizeof(*strip));
272             strip->split_flag = 1;
273             strip->split_direction = 1;
274             strip->width = (strip->width > 8 ? ((strip->width+8)>>4)<<3 : 4);
275             continue;
276         } else if(cmd == 2) {
277             if(strip->usl7 == 0) {
278                 strip->usl7 = 1;
279                 ref_vectors = NULL;
280                 continue;
281             }
282         } else if(cmd == 3) {
283             if(strip->usl7 == 0) {
284                 strip->usl7 = 1;
285                 ref_vectors = (const signed char*)buf2 + (*buf1 * 2);
286                 buf1++;
287                 continue;
288             }
289         }
290
291         cur_frm_pos = cur + width * strip->ypos + strip->xpos;
292
293         if((blks_width = strip->width) < 0)
294             blks_width += 3;
295         blks_width >>= 2;
296         blks_height = strip->height;
297
298         if(ref_vectors != NULL) {
299             ref_frm_pos = ref + (ref_vectors[0] + strip->ypos) * width +
300                 ref_vectors[1] + strip->xpos;
301         } else
302             ref_frm_pos = cur_frm_pos - width_tbl[4];
303
304         if(cmd == 2) {
305             if(bit_pos <= 0) {
306                 bit_pos = 8;
307                 bit_buf = *buf1++;
308             }
309
310             bit_pos -= 2;
311             cmd = (bit_buf >> bit_pos) & 0x03;
312
313             if(cmd == 0 || ref_vectors != NULL) {
314                 for(lp1 = 0; lp1 < blks_width; lp1++) {
315                     for(i = 0, j = 0; i < blks_height; i++, j += width_tbl[1])
316                         ((uint32_t *)cur_frm_pos)[j] = ((uint32_t *)ref_frm_pos)[j];
317                     cur_frm_pos += 4;
318                     ref_frm_pos += 4;
319                 }
320             } else if(cmd != 1)
321                 return;
322         } else {
323             k = *buf1 >> 4;
324             j = *buf1 & 0x0f;
325             buf1++;
326             lv = j + cb_offset;
327
328             if((lv - 8) <= 7 && (k == 0 || k == 3 || k == 10)) {
329                 cp2 = s->ModPred + ((lv - 8) << 7);
330                 cp = ref_frm_pos;
331                 for(i = 0; i < blks_width << 2; i++) {
332                     int v = *cp >> 1;
333                     *(cp++) = cp2[v];
334                 }
335             }
336
337             if(k == 1 || k == 4) {
338                 lv = (hdr[j] & 0xf) + cb_offset;
339                 correction_type_sp[0] = s->corrector_type + (lv << 8);
340                 correction_lp[0] = correction + (lv << 8);
341                 lv = (hdr[j] >> 4) + cb_offset;
342                 correction_lp[1] = correction + (lv << 8);
343                 correction_type_sp[1] = s->corrector_type + (lv << 8);
344             } else {
345                 correctionloworder_lp[0] = correctionloworder_lp[1] = correctionloworder + (lv << 8);
346                 correctionhighorder_lp[0] = correctionhighorder_lp[1] = correctionhighorder + (lv << 8);
347                 correction_type_sp[0] = correction_type_sp[1] = s->corrector_type + (lv << 8);
348                 correction_lp[0] = correction_lp[1] = correction + (lv << 8);
349             }
350
351             switch(k) {
352             case 1:
353             case 0:                    /********** CASE 0 **********/
354                 for( ; blks_height > 0; blks_height -= 4) {
355                     for(lp1 = 0; lp1 < blks_width; lp1++) {
356                         for(lp2 = 0; lp2 < 4; ) {
357                             k = *buf1++;
358                             cur_lp = ((uint32_t *)cur_frm_pos) + width_tbl[lp2];
359                             ref_lp = ((uint32_t *)ref_frm_pos) + width_tbl[lp2];
360
361                             switch(correction_type_sp[0][k]) {
362                             case 0:
363                                 *cur_lp = av_le2ne32(((av_le2ne32(*ref_lp) >> 1) + correction_lp[lp2 & 0x01][k]) << 1);
364                                 lp2++;
365                                 break;
366                             case 1:
367                                 res = ((av_le2ne16(((unsigned short *)(ref_lp))[0]) >> 1) + correction_lp[lp2 & 0x01][*buf1]) << 1;
368                                 ((unsigned short *)cur_lp)[0] = av_le2ne16(res);
369                                 res = ((av_le2ne16(((unsigned short *)(ref_lp))[1]) >> 1) + correction_lp[lp2 & 0x01][k]) << 1;
370                                 ((unsigned short *)cur_lp)[1] = av_le2ne16(res);
371                                 buf1++;
372                                 lp2++;
373                                 break;
374                             case 2:
375                                 if(lp2 == 0) {
376                                     for(i = 0, j = 0; i < 2; i++, j += width_tbl[1])
377                                         cur_lp[j] = ref_lp[j];
378                                     lp2 += 2;
379                                 }
380                                 break;
381                             case 3:
382                                 if(lp2 < 2) {
383                                     for(i = 0, j = 0; i < (3 - lp2); i++, j += width_tbl[1])
384                                         cur_lp[j] = ref_lp[j];
385                                     lp2 = 3;
386                                 }
387                                 break;
388                             case 8:
389                                 if(lp2 == 0) {
390                                     RLE_V3_CHECK(buf1,rle_v1,rle_v2,rle_v3)
391
392                                     if(rle_v1 == 1 || ref_vectors != NULL) {
393                                         for(i = 0, j = 0; i < 4; i++, j += width_tbl[1])
394                                             cur_lp[j] = ref_lp[j];
395                                     }
396
397                                     RLE_V2_CHECK(buf1,rle_v2, rle_v3,lp2)
398                                     break;
399                                 } else {
400                                     rle_v1 = 1;
401                                     rle_v2 = *buf1 - 1;
402                                 }
403                             case 5:
404                                 LP2_CHECK(buf1,rle_v3,lp2)
405                             case 4:
406                                 for(i = 0, j = 0; i < (4 - lp2); i++, j += width_tbl[1])
407                                     cur_lp[j] = ref_lp[j];
408                                 lp2 = 4;
409                                 break;
410
411                             case 7:
412                                 if(rle_v3 != 0)
413                                     rle_v3 = 0;
414                                 else {
415                                     buf1--;
416                                     rle_v3 = 1;
417                                 }
418                             case 6:
419                                 if(ref_vectors != NULL) {
420                                     for(i = 0, j = 0; i < 4; i++, j += width_tbl[1])
421                                         cur_lp[j] = ref_lp[j];
422                                 }
423                                 lp2 = 4;
424                                 break;
425
426                             case 9:
427                                 lv1 = *buf1++;
428                                 lv = (lv1 & 0x7F) << 1;
429                                 lv += (lv << 8);
430                                 lv += (lv << 16);
431                                 for(i = 0, j = 0; i < 4; i++, j += width_tbl[1])
432                                     cur_lp[j] = lv;
433
434                                 LV1_CHECK(buf1,rle_v3,lv1,lp2)
435                                 break;
436                             default:
437                                 return;
438                             }
439                         }
440
441                         cur_frm_pos += 4;
442                         ref_frm_pos += 4;
443                     }
444
445                     cur_frm_pos += ((width - blks_width) * 4);
446                     ref_frm_pos += ((width - blks_width) * 4);
447                 }
448                 break;
449
450             case 4:
451             case 3:                    /********** CASE 3 **********/
452                 if(ref_vectors != NULL)
453                     return;
454                 flag1 = 1;
455
456                 for( ; blks_height > 0; blks_height -= 8) {
457                     for(lp1 = 0; lp1 < blks_width; lp1++) {
458                         for(lp2 = 0; lp2 < 4; ) {
459                             k = *buf1++;
460
461                             cur_lp = ((uint32_t *)cur_frm_pos) + width_tbl[lp2 * 2];
462                             ref_lp = ((uint32_t *)cur_frm_pos) + width_tbl[(lp2 * 2) - 1];
463
464                             switch(correction_type_sp[lp2 & 0x01][k]) {
465                             case 0:
466                                 cur_lp[width_tbl[1]] = av_le2ne32(((av_le2ne32(*ref_lp) >> 1) + correction_lp[lp2 & 0x01][k]) << 1);
467                                 if(lp2 > 0 || flag1 == 0 || strip->ypos != 0)
468                                     cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE;
469                                 else
470                                     cur_lp[0] = av_le2ne32(((av_le2ne32(*ref_lp) >> 1) + correction_lp[lp2 & 0x01][k]) << 1);
471                                 lp2++;
472                                 break;
473
474                             case 1:
475                                 res = ((av_le2ne16(((unsigned short *)ref_lp)[0]) >> 1) + correction_lp[lp2 & 0x01][*buf1]) << 1;
476                                 ((unsigned short *)cur_lp)[width_tbl[2]] = av_le2ne16(res);
477                                 res = ((av_le2ne16(((unsigned short *)ref_lp)[1]) >> 1) + correction_lp[lp2 & 0x01][k]) << 1;
478                                 ((unsigned short *)cur_lp)[width_tbl[2]+1] = av_le2ne16(res);
479
480                                 if(lp2 > 0 || flag1 == 0 || strip->ypos != 0)
481                                     cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE;
482                                 else
483                                     cur_lp[0] = cur_lp[width_tbl[1]];
484                                 buf1++;
485                                 lp2++;
486                                 break;
487
488                             case 2:
489                                 if(lp2 == 0) {
490                                     for(i = 0, j = 0; i < 4; i++, j += width_tbl[1])
491                                         cur_lp[j] = *ref_lp;
492                                     lp2 += 2;
493                                 }
494                                 break;
495
496                             case 3:
497                                 if(lp2 < 2) {
498                                     for(i = 0, j = 0; i < 6 - (lp2 * 2); i++, j += width_tbl[1])
499                                         cur_lp[j] = *ref_lp;
500                                     lp2 = 3;
501                                 }
502                                 break;
503
504                             case 6:
505                                 lp2 = 4;
506                                 break;
507
508                             case 7:
509                                 if(rle_v3 != 0)
510                                     rle_v3 = 0;
511                                 else {
512                                     buf1--;
513                                     rle_v3 = 1;
514                                 }
515                                 lp2 = 4;
516                                 break;
517
518                             case 8:
519                                 if(lp2 == 0) {
520                                     RLE_V3_CHECK(buf1,rle_v1,rle_v2,rle_v3)
521
522                                     if(rle_v1 == 1) {
523                                         for(i = 0, j = 0; i < 8; i++, j += width_tbl[1])
524                                             cur_lp[j] = ref_lp[j];
525                                     }
526
527                                     RLE_V2_CHECK(buf1,rle_v2, rle_v3,lp2)
528                                     break;
529                                 } else {
530                                     rle_v2 = (*buf1) - 1;
531                                     rle_v1 = 1;
532                                 }
533                             case 5:
534                                 LP2_CHECK(buf1,rle_v3,lp2)
535                             case 4:
536                                 for(i = 0, j = 0; i < 8 - (lp2 * 2); i++, j += width_tbl[1])
537                                     cur_lp[j] = *ref_lp;
538                                 lp2 = 4;
539                                 break;
540
541                             case 9:
542                                 av_log(s->avctx, AV_LOG_ERROR, "UNTESTED.\n");
543                                 lv1 = *buf1++;
544                                 lv = (lv1 & 0x7F) << 1;
545                                 lv += (lv << 8);
546                                 lv += (lv << 16);
547
548                                 for(i = 0, j = 0; i < 4; i++, j += width_tbl[1])
549                                     cur_lp[j] = lv;
550
551                                 LV1_CHECK(buf1,rle_v3,lv1,lp2)
552                                 break;
553
554                             default:
555                                 return;
556                             }
557                         }
558
559                         cur_frm_pos += 4;
560                     }
561
562                     cur_frm_pos += (((width * 2) - blks_width) * 4);
563                     flag1 = 0;
564                 }
565                 break;
566
567             case 10:                    /********** CASE 10 **********/
568                 if(ref_vectors == NULL) {
569                     flag1 = 1;
570
571                     for( ; blks_height > 0; blks_height -= 8) {
572                         for(lp1 = 0; lp1 < blks_width; lp1 += 2) {
573                             for(lp2 = 0; lp2 < 4; ) {
574                                 k = *buf1++;
575                                 cur_lp = ((uint32_t *)cur_frm_pos) + width_tbl[lp2 * 2];
576                                 ref_lp = ((uint32_t *)cur_frm_pos) + width_tbl[(lp2 * 2) - 1];
577                                 lv1 = ref_lp[0];
578                                 lv2 = ref_lp[1];
579                                 if(lp2 == 0 && flag1 != 0) {
580 #if HAVE_BIGENDIAN
581                                     lv1 = lv1 & 0xFF00FF00;
582                                     lv1 = (lv1 >> 8) | lv1;
583                                     lv2 = lv2 & 0xFF00FF00;
584                                     lv2 = (lv2 >> 8) | lv2;
585 #else
586                                     lv1 = lv1 & 0x00FF00FF;
587                                     lv1 = (lv1 << 8) | lv1;
588                                     lv2 = lv2 & 0x00FF00FF;
589                                     lv2 = (lv2 << 8) | lv2;
590 #endif
591                                 }
592
593                                 switch(correction_type_sp[lp2 & 0x01][k]) {
594                                 case 0:
595                                     cur_lp[width_tbl[1]] = av_le2ne32(((av_le2ne32(lv1) >> 1) + correctionloworder_lp[lp2 & 0x01][k]) << 1);
596                                     cur_lp[width_tbl[1]+1] = av_le2ne32(((av_le2ne32(lv2) >> 1) + correctionhighorder_lp[lp2 & 0x01][k]) << 1);
597                                     if(lp2 > 0 || strip->ypos != 0 || flag1 == 0) {
598                                         cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE;
599                                         cur_lp[1] = ((cur_lp[-width_tbl[1]+1] >> 1) + (cur_lp[width_tbl[1]+1] >> 1)) & 0xFEFEFEFE;
600                                     } else {
601                                         cur_lp[0] = cur_lp[width_tbl[1]];
602                                         cur_lp[1] = cur_lp[width_tbl[1]+1];
603                                     }
604                                     lp2++;
605                                     break;
606
607                                 case 1:
608                                     cur_lp[width_tbl[1]] = av_le2ne32(((av_le2ne32(lv1) >> 1) + correctionloworder_lp[lp2 & 0x01][*buf1]) << 1);
609                                     cur_lp[width_tbl[1]+1] = av_le2ne32(((av_le2ne32(lv2) >> 1) + correctionloworder_lp[lp2 & 0x01][k]) << 1);
610                                     if(lp2 > 0 || strip->ypos != 0 || flag1 == 0) {
611                                         cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE;
612                                         cur_lp[1] = ((cur_lp[-width_tbl[1]+1] >> 1) + (cur_lp[width_tbl[1]+1] >> 1)) & 0xFEFEFEFE;
613                                     } else {
614                                         cur_lp[0] = cur_lp[width_tbl[1]];
615                                         cur_lp[1] = cur_lp[width_tbl[1]+1];
616                                     }
617                                     buf1++;
618                                     lp2++;
619                                     break;
620
621                                 case 2:
622                                     if(lp2 == 0) {
623                                         if(flag1 != 0) {
624                                             for(i = 0, j = width_tbl[1]; i < 3; i++, j += width_tbl[1]) {
625                                                 cur_lp[j] = lv1;
626                                                 cur_lp[j+1] = lv2;
627                                             }
628                                             cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE;
629                                             cur_lp[1] = ((cur_lp[-width_tbl[1]+1] >> 1) + (cur_lp[width_tbl[1]+1] >> 1)) & 0xFEFEFEFE;
630                                         } else {
631                                             for(i = 0, j = 0; i < 4; i++, j += width_tbl[1]) {
632                                                 cur_lp[j] = lv1;
633                                                 cur_lp[j+1] = lv2;
634                                             }
635                                         }
636                                         lp2 += 2;
637                                     }
638                                     break;
639
640                                 case 3:
641                                     if(lp2 < 2) {
642                                         if(lp2 == 0 && flag1 != 0) {
643                                             for(i = 0, j = width_tbl[1]; i < 5; i++, j += width_tbl[1]) {
644                                                 cur_lp[j] = lv1;
645                                                 cur_lp[j+1] = lv2;
646                                             }
647                                             cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE;
648                                             cur_lp[1] = ((cur_lp[-width_tbl[1]+1] >> 1) + (cur_lp[width_tbl[1]+1] >> 1)) & 0xFEFEFEFE;
649                                         } else {
650                                             for(i = 0, j = 0; i < 6 - (lp2 * 2); i++, j += width_tbl[1]) {
651                                                 cur_lp[j] = lv1;
652                                                 cur_lp[j+1] = lv2;
653                                             }
654                                         }
655                                         lp2 = 3;
656                                     }
657                                     break;
658
659                                 case 8:
660                                     if(lp2 == 0) {
661                                         RLE_V3_CHECK(buf1,rle_v1,rle_v2,rle_v3)
662                                         if(rle_v1 == 1) {
663                                             if(flag1 != 0) {
664                                                 for(i = 0, j = width_tbl[1]; i < 7; i++, j += width_tbl[1]) {
665                                                     cur_lp[j] = lv1;
666                                                     cur_lp[j+1] = lv2;
667                                                 }
668                                                 cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE;
669                                                 cur_lp[1] = ((cur_lp[-width_tbl[1]+1] >> 1) + (cur_lp[width_tbl[1]+1] >> 1)) & 0xFEFEFEFE;
670                                             } else {
671                                                 for(i = 0, j = 0; i < 8; i++, j += width_tbl[1]) {
672                                                     cur_lp[j] = lv1;
673                                                     cur_lp[j+1] = lv2;
674                                                 }
675                                             }
676                                         }
677                                         RLE_V2_CHECK(buf1,rle_v2, rle_v3,lp2)
678                                         break;
679                                     } else {
680                                         rle_v1 = 1;
681                                         rle_v2 = (*buf1) - 1;
682                                     }
683                                 case 5:
684                                     LP2_CHECK(buf1,rle_v3,lp2)
685                                 case 4:
686                                     if(lp2 == 0 && flag1 != 0) {
687                                         for(i = 0, j = width_tbl[1]; i < 7; i++, j += width_tbl[1]) {
688                                             cur_lp[j] = lv1;
689                                             cur_lp[j+1] = lv2;
690                                         }
691                                         cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE;
692                                         cur_lp[1] = ((cur_lp[-width_tbl[1]+1] >> 1) + (cur_lp[width_tbl[1]+1] >> 1)) & 0xFEFEFEFE;
693                                     } else {
694                                         for(i = 0, j = 0; i < 8 - (lp2 * 2); i++, j += width_tbl[1]) {
695                                             cur_lp[j] = lv1;
696                                             cur_lp[j+1] = lv2;
697                                         }
698                                     }
699                                     lp2 = 4;
700                                     break;
701
702                                 case 6:
703                                     lp2 = 4;
704                                     break;
705
706                                 case 7:
707                                     if(lp2 == 0) {
708                                         if(rle_v3 != 0)
709                                             rle_v3 = 0;
710                                         else {
711                                             buf1--;
712                                             rle_v3 = 1;
713                                         }
714                                         lp2 = 4;
715                                     }
716                                     break;
717
718                                 case 9:
719                                     av_log(s->avctx, AV_LOG_ERROR, "UNTESTED.\n");
720                                     lv1 = *buf1;
721                                     lv = (lv1 & 0x7F) << 1;
722                                     lv += (lv << 8);
723                                     lv += (lv << 16);
724                                     for(i = 0, j = 0; i < 8; i++, j += width_tbl[1])
725                                         cur_lp[j] = lv;
726                                     LV1_CHECK(buf1,rle_v3,lv1,lp2)
727                                     break;
728
729                                 default:
730                                     return;
731                                 }
732                             }
733
734                             cur_frm_pos += 8;
735                         }
736
737                         cur_frm_pos += (((width * 2) - blks_width) * 4);
738                         flag1 = 0;
739                     }
740                 } else {
741                     for( ; blks_height > 0; blks_height -= 8) {
742                         for(lp1 = 0; lp1 < blks_width; lp1 += 2) {
743                             for(lp2 = 0; lp2 < 4; ) {
744                                 k = *buf1++;
745                                 cur_lp = ((uint32_t *)cur_frm_pos) + width_tbl[lp2 * 2];
746                                 ref_lp = ((uint32_t *)ref_frm_pos) + width_tbl[lp2 * 2];
747
748                                 switch(correction_type_sp[lp2 & 0x01][k]) {
749                                 case 0:
750                                     lv1 = correctionloworder_lp[lp2 & 0x01][k];
751                                     lv2 = correctionhighorder_lp[lp2 & 0x01][k];
752                                     cur_lp[0] = av_le2ne32(((av_le2ne32(ref_lp[0]) >> 1) + lv1) << 1);
753                                     cur_lp[1] = av_le2ne32(((av_le2ne32(ref_lp[1]) >> 1) + lv2) << 1);
754                                     cur_lp[width_tbl[1]] = av_le2ne32(((av_le2ne32(ref_lp[width_tbl[1]]) >> 1) + lv1) << 1);
755                                     cur_lp[width_tbl[1]+1] = av_le2ne32(((av_le2ne32(ref_lp[width_tbl[1]+1]) >> 1) + lv2) << 1);
756                                     lp2++;
757                                     break;
758
759                                 case 1:
760                                     lv1 = correctionloworder_lp[lp2 & 0x01][*buf1++];
761                                     lv2 = correctionloworder_lp[lp2 & 0x01][k];
762                                     cur_lp[0] = av_le2ne32(((av_le2ne32(ref_lp[0]) >> 1) + lv1) << 1);
763                                     cur_lp[1] = av_le2ne32(((av_le2ne32(ref_lp[1]) >> 1) + lv2) << 1);
764                                     cur_lp[width_tbl[1]] = av_le2ne32(((av_le2ne32(ref_lp[width_tbl[1]]) >> 1) + lv1) << 1);
765                                     cur_lp[width_tbl[1]+1] = av_le2ne32(((av_le2ne32(ref_lp[width_tbl[1]+1]) >> 1) + lv2) << 1);
766                                     lp2++;
767                                     break;
768
769                                 case 2:
770                                     if(lp2 == 0) {
771                                         for(i = 0, j = 0; i < 4; i++, j += width_tbl[1]) {
772                                             cur_lp[j] = ref_lp[j];
773                                             cur_lp[j+1] = ref_lp[j+1];
774                                         }
775                                         lp2 += 2;
776                                     }
777                                     break;
778
779                                 case 3:
780                                     if(lp2 < 2) {
781                                         for(i = 0, j = 0; i < 6 - (lp2 * 2); i++, j += width_tbl[1]) {
782                                             cur_lp[j] = ref_lp[j];
783                                             cur_lp[j+1] = ref_lp[j+1];
784                                         }
785                                         lp2 = 3;
786                                     }
787                                     break;
788
789                                 case 8:
790                                     if(lp2 == 0) {
791                                         RLE_V3_CHECK(buf1,rle_v1,rle_v2,rle_v3)
792                                         for(i = 0, j = 0; i < 8; i++, j += width_tbl[1]) {
793                                             ((uint32_t *)cur_frm_pos)[j] = ((uint32_t *)ref_frm_pos)[j];
794                                             ((uint32_t *)cur_frm_pos)[j+1] = ((uint32_t *)ref_frm_pos)[j+1];
795                                         }
796                                         RLE_V2_CHECK(buf1,rle_v2, rle_v3,lp2)
797                                         break;
798                                     } else {
799                                         rle_v1 = 1;
800                                         rle_v2 = (*buf1) - 1;
801                                     }
802                                 case 5:
803                                 case 7:
804                                     LP2_CHECK(buf1,rle_v3,lp2)
805                                 case 6:
806                                 case 4:
807                                     for(i = 0, j = 0; i < 8 - (lp2 * 2); i++, j += width_tbl[1]) {
808                                         cur_lp[j] = ref_lp[j];
809                                         cur_lp[j+1] = ref_lp[j+1];
810                                     }
811                                     lp2 = 4;
812                                     break;
813
814                                 case 9:
815                                     av_log(s->avctx, AV_LOG_ERROR, "UNTESTED.\n");
816                                     lv1 = *buf1;
817                                     lv = (lv1 & 0x7F) << 1;
818                                     lv += (lv << 8);
819                                     lv += (lv << 16);
820                                     for(i = 0, j = 0; i < 8; i++, j += width_tbl[1])
821                                         ((uint32_t *)cur_frm_pos)[j] = ((uint32_t *)cur_frm_pos)[j+1] = lv;
822                                     LV1_CHECK(buf1,rle_v3,lv1,lp2)
823                                     break;
824
825                                 default:
826                                     return;
827                                 }
828                             }
829
830                             cur_frm_pos += 8;
831                             ref_frm_pos += 8;
832                         }
833
834                         cur_frm_pos += (((width * 2) - blks_width) * 4);
835                         ref_frm_pos += (((width * 2) - blks_width) * 4);
836                     }
837                 }
838                 break;
839
840             case 11:                    /********** CASE 11 **********/
841                 if(ref_vectors == NULL)
842                     return;
843
844                 for( ; blks_height > 0; blks_height -= 8) {
845                     for(lp1 = 0; lp1 < blks_width; lp1++) {
846                         for(lp2 = 0; lp2 < 4; ) {
847                             k = *buf1++;
848                             cur_lp = ((uint32_t *)cur_frm_pos) + width_tbl[lp2 * 2];
849                             ref_lp = ((uint32_t *)ref_frm_pos) + width_tbl[lp2 * 2];
850
851                             switch(correction_type_sp[lp2 & 0x01][k]) {
852                             case 0:
853                                 cur_lp[0] = av_le2ne32(((av_le2ne32(*ref_lp) >> 1) + correction_lp[lp2 & 0x01][k]) << 1);
854                                 cur_lp[width_tbl[1]] = av_le2ne32(((av_le2ne32(ref_lp[width_tbl[1]]) >> 1) + correction_lp[lp2 & 0x01][k]) << 1);
855                                 lp2++;
856                                 break;
857
858                             case 1:
859                                 lv1 = (unsigned short)(correction_lp[lp2 & 0x01][*buf1++]);
860                                 lv2 = (unsigned short)(correction_lp[lp2 & 0x01][k]);
861                                 res = (unsigned short)(((av_le2ne16(((unsigned short *)ref_lp)[0]) >> 1) + lv1) << 1);
862                                 ((unsigned short *)cur_lp)[0] = av_le2ne16(res);
863                                 res = (unsigned short)(((av_le2ne16(((unsigned short *)ref_lp)[1]) >> 1) + lv2) << 1);
864                                 ((unsigned short *)cur_lp)[1] = av_le2ne16(res);
865                                 res = (unsigned short)(((av_le2ne16(((unsigned short *)ref_lp)[width_tbl[2]]) >> 1) + lv1) << 1);
866                                 ((unsigned short *)cur_lp)[width_tbl[2]] = av_le2ne16(res);
867                                 res = (unsigned short)(((av_le2ne16(((unsigned short *)ref_lp)[width_tbl[2]+1]) >> 1) + lv2) << 1);
868                                 ((unsigned short *)cur_lp)[width_tbl[2]+1] = av_le2ne16(res);
869                                 lp2++;
870                                 break;
871
872                             case 2:
873                                 if(lp2 == 0) {
874                                     for(i = 0, j = 0; i < 4; i++, j += width_tbl[1])
875                                         cur_lp[j] = ref_lp[j];
876                                     lp2 += 2;
877                                 }
878                                 break;
879
880                             case 3:
881                                 if(lp2 < 2) {
882                                     for(i = 0, j = 0; i < 6 - (lp2 * 2); i++, j += width_tbl[1])
883                                         cur_lp[j] = ref_lp[j];
884                                     lp2 = 3;
885                                 }
886                                 break;
887
888                             case 8:
889                                 if(lp2 == 0) {
890                                     RLE_V3_CHECK(buf1,rle_v1,rle_v2,rle_v3)
891
892                                     for(i = 0, j = 0; i < 8; i++, j += width_tbl[1])
893                                         cur_lp[j] = ref_lp[j];
894
895                                     RLE_V2_CHECK(buf1,rle_v2, rle_v3,lp2)
896                                     break;
897                                 } else {
898                                     rle_v1 = 1;
899                                     rle_v2 = (*buf1) - 1;
900                                 }
901                             case 5:
902                             case 7:
903                                 LP2_CHECK(buf1,rle_v3,lp2)
904                             case 4:
905                             case 6:
906                                 for(i = 0, j = 0; i < 8 - (lp2 * 2); i++, j += width_tbl[1])
907                                     cur_lp[j] = ref_lp[j];
908                                 lp2 = 4;
909                                 break;
910
911                             case 9:
912                                 av_log(s->avctx, AV_LOG_ERROR, "UNTESTED.\n");
913                                 lv1 = *buf1++;
914                                 lv = (lv1 & 0x7F) << 1;
915                                 lv += (lv << 8);
916                                 lv += (lv << 16);
917                                 for(i = 0, j = 0; i < 4; i++, j += width_tbl[1])
918                                     cur_lp[j] = lv;
919                                 LV1_CHECK(buf1,rle_v3,lv1,lp2)
920                                 break;
921
922                             default:
923                                 return;
924                             }
925                         }
926
927                         cur_frm_pos += 4;
928                         ref_frm_pos += 4;
929                     }
930
931                     cur_frm_pos += (((width * 2) - blks_width) * 4);
932                     ref_frm_pos += (((width * 2) - blks_width) * 4);
933                 }
934                 break;
935
936             default:
937                 return;
938             }
939         }
940
941         for( ; strip >= strip_tbl; strip--) {
942             if(strip->split_flag != 0) {
943                 strip->split_flag = 0;
944                 strip->usl7 = (strip-1)->usl7;
945
946                 if(strip->split_direction) {
947                     strip->xpos += strip->width;
948                     strip->width = (strip-1)->width - strip->width;
949                     if(region_160_width <= strip->xpos && width < strip->width + strip->xpos)
950                         strip->width = width - strip->xpos;
951                 } else {
952                     strip->ypos += strip->height;
953                     strip->height = (strip-1)->height - strip->height;
954                 }
955                 break;
956             }
957         }
958     }
959 }
960
961 static av_cold int indeo3_decode_init(AVCodecContext *avctx)
962 {
963     Indeo3DecodeContext *s = avctx->priv_data;
964     int ret = 0;
965
966     s->avctx = avctx;
967     s->width = avctx->width;
968     s->height = avctx->height;
969     avctx->pix_fmt = PIX_FMT_YUV410P;
970
971     if (!(ret = build_modpred(s)))
972         ret = iv_alloc_frames(s);
973     if (ret)
974         iv_free_func(s);
975
976     return ret;
977 }
978
979 static int iv_decode_frame(AVCodecContext *avctx,
980                            const uint8_t *buf, int buf_size)
981 {
982     Indeo3DecodeContext *s = avctx->priv_data;
983     unsigned int image_width, image_height,
984                  chroma_width, chroma_height;
985     unsigned int flags, cb_offset, data_size,
986                   y_offset, v_offset, u_offset, mc_vector_count;
987     const uint8_t *hdr_pos, *buf_pos;
988
989     buf_pos = buf;
990     buf_pos += 18; /* skip OS header (16 bytes) and version number */
991
992     flags = bytestream_get_le16(&buf_pos);
993     data_size = bytestream_get_le32(&buf_pos);
994     cb_offset = *buf_pos++;
995     buf_pos += 3; /* skip reserved byte and checksum */
996     image_height = bytestream_get_le16(&buf_pos);
997     image_width  = bytestream_get_le16(&buf_pos);
998
999     if(av_image_check_size(image_width, image_height, 0, avctx))
1000         return -1;
1001     if (image_width != avctx->width || image_height != avctx->height) {
1002         int ret;
1003         avcodec_set_dimensions(avctx, image_width, image_height);
1004         s->width  = avctx->width;
1005         s->height = avctx->height;
1006         ret = iv_alloc_frames(s);
1007         if (ret < 0) {
1008             s->width = s->height = 0;
1009             return ret;
1010         }
1011     }
1012
1013     chroma_height = ((image_height >> 2) + 3) & 0x7ffc;
1014     chroma_width = ((image_width >> 2) + 3) & 0x7ffc;
1015     y_offset = bytestream_get_le32(&buf_pos);
1016     v_offset = bytestream_get_le32(&buf_pos);
1017     u_offset = bytestream_get_le32(&buf_pos);
1018     buf_pos += 4; /* reserved */
1019     hdr_pos = buf_pos;
1020     if(data_size == 0x80) return 4;
1021
1022     if(FFMAX3(y_offset, v_offset, u_offset) >= buf_size-16) {
1023         av_log(s->avctx, AV_LOG_ERROR, "y/u/v offset outside buffer\n");
1024         return -1;
1025     }
1026
1027     if(flags & 0x200) {
1028         s->cur_frame = s->iv_frame + 1;
1029         s->ref_frame = s->iv_frame;
1030     } else {
1031         s->cur_frame = s->iv_frame;
1032         s->ref_frame = s->iv_frame + 1;
1033     }
1034
1035     buf_pos = buf + 16 + y_offset;
1036     mc_vector_count = bytestream_get_le32(&buf_pos);
1037     if(2LL*mc_vector_count >= buf_size-16-y_offset) {
1038         av_log(s->avctx, AV_LOG_ERROR, "mc_vector_count too large\n");
1039         return -1;
1040     }
1041
1042     iv_Decode_Chunk(s, s->cur_frame->Ybuf, s->ref_frame->Ybuf, image_width,
1043                     image_height, buf_pos + mc_vector_count * 2, cb_offset, hdr_pos, buf_pos,
1044                     FFMIN(image_width, 160));
1045
1046     if (!(s->avctx->flags & CODEC_FLAG_GRAY))
1047     {
1048
1049         buf_pos = buf + 16 + v_offset;
1050         mc_vector_count = bytestream_get_le32(&buf_pos);
1051         if(2LL*mc_vector_count >= buf_size-16-v_offset) {
1052             av_log(s->avctx, AV_LOG_ERROR, "mc_vector_count too large\n");
1053             return -1;
1054         }
1055
1056         iv_Decode_Chunk(s, s->cur_frame->Vbuf, s->ref_frame->Vbuf, chroma_width,
1057                 chroma_height, buf_pos + mc_vector_count * 2, cb_offset, hdr_pos, buf_pos,
1058                 FFMIN(chroma_width, 40));
1059
1060         buf_pos = buf + 16 + u_offset;
1061         mc_vector_count = bytestream_get_le32(&buf_pos);
1062         if(2LL*mc_vector_count >= buf_size-16-u_offset) {
1063             av_log(s->avctx, AV_LOG_ERROR, "mc_vector_count too large\n");
1064             return -1;
1065         }
1066
1067         iv_Decode_Chunk(s, s->cur_frame->Ubuf, s->ref_frame->Ubuf, chroma_width,
1068                 chroma_height, buf_pos + mc_vector_count * 2, cb_offset, hdr_pos, buf_pos,
1069                 FFMIN(chroma_width, 40));
1070
1071     }
1072
1073     return 8;
1074 }
1075
1076 static int indeo3_decode_frame(AVCodecContext *avctx,
1077                                void *data, int *data_size,
1078                                AVPacket *avpkt)
1079 {
1080     const uint8_t *buf = avpkt->data;
1081     int buf_size = avpkt->size;
1082     Indeo3DecodeContext *s=avctx->priv_data;
1083     uint8_t *src, *dest;
1084     int y;
1085
1086     if (iv_decode_frame(avctx, buf, buf_size) < 0)
1087         return -1;
1088
1089     if(s->frame.data[0])
1090         avctx->release_buffer(avctx, &s->frame);
1091
1092     s->frame.reference = 0;
1093     if(avctx->get_buffer(avctx, &s->frame) < 0) {
1094         av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed\n");
1095         return -1;
1096     }
1097
1098     src = s->cur_frame->Ybuf;
1099     dest = s->frame.data[0];
1100     for (y = 0; y < s->height; y++) {
1101         memcpy(dest, src, s->cur_frame->y_w);
1102         src += s->cur_frame->y_w;
1103         dest += s->frame.linesize[0];
1104     }
1105
1106     if (!(s->avctx->flags & CODEC_FLAG_GRAY))
1107     {
1108         src = s->cur_frame->Ubuf;
1109         dest = s->frame.data[1];
1110         for (y = 0; y < s->height / 4; y++) {
1111             memcpy(dest, src, s->cur_frame->uv_w);
1112             src += s->cur_frame->uv_w;
1113             dest += s->frame.linesize[1];
1114         }
1115
1116         src = s->cur_frame->Vbuf;
1117         dest = s->frame.data[2];
1118         for (y = 0; y < s->height / 4; y++) {
1119             memcpy(dest, src, s->cur_frame->uv_w);
1120             src += s->cur_frame->uv_w;
1121             dest += s->frame.linesize[2];
1122         }
1123     }
1124
1125     *data_size=sizeof(AVFrame);
1126     *(AVFrame*)data= s->frame;
1127
1128     return buf_size;
1129 }
1130
1131 static av_cold int indeo3_decode_end(AVCodecContext *avctx)
1132 {
1133     Indeo3DecodeContext *s = avctx->priv_data;
1134
1135     iv_free_func(s);
1136
1137     return 0;
1138 }
1139
1140 AVCodec ff_indeo3_decoder = {
1141     .name           = "indeo3",
1142     .type           = AVMEDIA_TYPE_VIDEO,
1143     .id             = CODEC_ID_INDEO3,
1144     .priv_data_size = sizeof(Indeo3DecodeContext),
1145     .init           = indeo3_decode_init,
1146     .close          = indeo3_decode_end,
1147     .decode         = indeo3_decode_frame,
1148     .capabilities   = CODEC_CAP_DR1,
1149     .long_name = NULL_IF_CONFIG_SMALL("Intel Indeo 3"),
1150 };