Update to MPlayer SVN rev 29473 and FFmpeg SVN rev 19572.
[vaapi:athaifas-mplayer.git] / libavcodec / .svn / text-base / indeo3.c.svn-base
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 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 #include <stdio.h>
23 #include <stdlib.h>
24 #include <string.h>
25
26 #include "avcodec.h"
27 #include "dsputil.h"
28 #include "bytestream.h"
29
30 #include "indeo3data.h"
31
32 typedef struct
33 {
34     uint8_t *Ybuf;
35     uint8_t *Ubuf;
36     uint8_t *Vbuf;
37     unsigned short y_w, y_h;
38     unsigned short uv_w, uv_h;
39 } YUVBufs;
40
41 typedef struct Indeo3DecodeContext {
42     AVCodecContext *avctx;
43     int width, height;
44     AVFrame frame;
45
46     uint8_t *buf;
47     YUVBufs iv_frame[2];
48     YUVBufs *cur_frame;
49     YUVBufs *ref_frame;
50
51     uint8_t *ModPred;
52     uint8_t *corrector_type;
53 } Indeo3DecodeContext;
54
55 static const uint8_t corrector_type_0[24] = {
56     195, 159, 133, 115, 101,  93,  87,  77,
57     195, 159, 133, 115, 101,  93,  87,  77,
58     128,  79,  79,  79,  79,  79,  79,  79
59 };
60
61 static const uint8_t corrector_type_2[8] = { 9, 7, 6, 8, 5, 4, 3, 2 };
62
63 static av_cold int build_modpred(Indeo3DecodeContext *s)
64 {
65     int i, j;
66
67     if (!(s->ModPred = av_malloc(8 * 128)))
68         return AVERROR(ENOMEM);
69
70     for (i=0; i < 128; ++i) {
71         s->ModPred[i+0*128] = i >  126 ? 254 : 2*(i + 1 - ((i + 1) % 2));
72         s->ModPred[i+1*128] = i ==   7 ?  20 :
73                               i == 119 ||
74                               i == 120 ? 236 : 2*(i + 2 - ((i + 1) % 3));
75         s->ModPred[i+2*128] = i >  125 ? 248 : 2*(i + 2 - ((i + 2) % 4));
76         s->ModPred[i+3*128] =                  2*(i + 1 - ((i - 3) % 5));
77         s->ModPred[i+4*128] = i ==   8 ?  20 : 2*(i + 1 - ((i - 3) % 6));
78         s->ModPred[i+5*128] =                  2*(i + 4 - ((i + 3) % 7));
79         s->ModPred[i+6*128] = i >  123 ? 240 : 2*(i + 4 - ((i + 4) % 8));
80         s->ModPred[i+7*128] =                  2*(i + 5 - ((i + 4) % 9));
81     }
82
83     if (!(s->corrector_type = av_malloc(24 * 256)))
84         return AVERROR(ENOMEM);
85
86     for (i=0; i < 24; ++i) {
87         for (j=0; j < 256; ++j) {
88             s->corrector_type[i*256+j] = j < corrector_type_0[i]          ? 1 :
89                                          j < 248 || (i == 16 && j == 248) ? 0 :
90                                          corrector_type_2[j - 248];
91         }
92     }
93
94   return 0;
95 }
96
97 static av_cold int iv_alloc_frames(Indeo3DecodeContext *s)
98 {
99     int luma_width    = (s->width           + 3) & ~3,
100         luma_height   = (s->height          + 3) & ~3,
101         chroma_width  = ((luma_width  >> 2) + 3) & ~3,
102         chroma_height = ((luma_height >> 2) + 3) & ~3,
103         luma_pixels   = luma_width   * luma_height,
104         chroma_pixels = chroma_width * chroma_height,
105         i;
106     unsigned int bufsize = luma_pixels * 2 + luma_width * 3 +
107                           (chroma_pixels   + chroma_width) * 4;
108
109     av_freep(&s->buf);
110     if(!(s->buf = av_malloc(bufsize)))
111         return AVERROR(ENOMEM);
112     s->iv_frame[0].y_w = s->iv_frame[1].y_w = luma_width;
113     s->iv_frame[0].y_h = s->iv_frame[1].y_h = luma_height;
114     s->iv_frame[0].uv_w = s->iv_frame[1].uv_w = chroma_width;
115     s->iv_frame[0].uv_h = s->iv_frame[1].uv_h = chroma_height;
116
117     s->iv_frame[0].Ybuf = s->buf + luma_width;
118     i = luma_pixels + luma_width * 2;
119     s->iv_frame[1].Ybuf = s->buf + i;
120     i += (luma_pixels + luma_width);
121     s->iv_frame[0].Ubuf = s->buf + i;
122     i += (chroma_pixels + chroma_width);
123     s->iv_frame[1].Ubuf = s->buf + i;
124     i += (chroma_pixels + chroma_width);
125     s->iv_frame[0].Vbuf = s->buf + i;
126     i += (chroma_pixels + chroma_width);
127     s->iv_frame[1].Vbuf = s->buf + i;
128
129     for(i = 1; i <= luma_width; i++)
130         s->iv_frame[0].Ybuf[-i] = s->iv_frame[1].Ybuf[-i] =
131             s->iv_frame[0].Ubuf[-i] = 0x80;
132
133     for(i = 1; i <= chroma_width; i++) {
134         s->iv_frame[1].Ubuf[-i] = 0x80;
135         s->iv_frame[0].Vbuf[-i] = 0x80;
136         s->iv_frame[1].Vbuf[-i] = 0x80;
137         s->iv_frame[1].Vbuf[chroma_pixels+i-1] = 0x80;
138     }
139
140     return 0;
141 }
142
143 static av_cold void iv_free_func(Indeo3DecodeContext *s)
144 {
145     av_freep(&s->buf);
146     av_freep(&s->ModPred);
147     av_freep(&s->corrector_type);
148 }
149
150 struct ustr {
151     long xpos;
152     long ypos;
153     long width;
154     long height;
155     long split_flag;
156     long split_direction;
157     long usl7;
158 };
159
160
161 #define LV1_CHECK(buf1,rle_v3,lv1,lp2)  \
162     if((lv1 & 0x80) != 0) {             \
163         if(rle_v3 != 0)                 \
164             rle_v3 = 0;                 \
165         else {                          \
166             rle_v3 = 1;                 \
167             buf1 -= 2;                  \
168         }                               \
169     }                                   \
170     lp2 = 4;
171
172
173 #define RLE_V3_CHECK(buf1,rle_v1,rle_v2,rle_v3)  \
174     if(rle_v3 == 0) {                            \
175         rle_v2 = *buf1;                          \
176         rle_v1 = 1;                              \
177         if(rle_v2 > 32) {                        \
178             rle_v2 -= 32;                        \
179             rle_v1 = 0;                          \
180         }                                        \
181         rle_v3 = 1;                              \
182     }                                            \
183     buf1--;
184
185
186 #define LP2_CHECK(buf1,rle_v3,lp2)  \
187     if(lp2 == 0 && rle_v3 != 0)     \
188         rle_v3 = 0;                 \
189     else {                          \
190         buf1--;                     \
191         rle_v3 = 1;                 \
192     }
193
194
195 #define RLE_V2_CHECK(buf1,rle_v2, rle_v3,lp2) \
196     rle_v2--;                                 \
197     if(rle_v2 == 0) {                         \
198         rle_v3 = 0;                           \
199         buf1 += 2;                            \
200     }                                         \
201     lp2 = 4;
202
203 static void iv_Decode_Chunk(Indeo3DecodeContext *s,
204         uint8_t *cur, uint8_t *ref, int width, int height,
205         const uint8_t *buf1, long cb_offset, const uint8_t *hdr,
206         const uint8_t *buf2, int min_width_160)
207 {
208     uint8_t bit_buf;
209     unsigned long bit_pos, lv, lv1, lv2;
210     long *width_tbl, width_tbl_arr[10];
211     const signed char *ref_vectors;
212     uint8_t *cur_frm_pos, *ref_frm_pos, *cp, *cp2;
213     uint32_t *cur_lp, *ref_lp;
214     const uint32_t *correction_lp[2], *correctionloworder_lp[2], *correctionhighorder_lp[2];
215     uint8_t *correction_type_sp[2];
216     struct ustr strip_tbl[20], *strip;
217     int i, j, k, lp1, lp2, flag1, cmd, blks_width, blks_height, region_160_width,
218         rle_v1, rle_v2, rle_v3;
219     unsigned short res;
220
221     bit_buf = 0;
222     ref_vectors = NULL;
223
224     width_tbl = width_tbl_arr + 1;
225     i = (width < 0 ? width + 3 : width)/4;
226     for(j = -1; j < 8; j++)
227         width_tbl[j] = i * j;
228
229     strip = strip_tbl;
230
231     for(region_160_width = 0; region_160_width < (width - min_width_160); region_160_width += min_width_160);
232
233     strip->ypos = strip->xpos = 0;
234     for(strip->width = min_width_160; width > strip->width; strip->width *= 2);
235     strip->height = height;
236     strip->split_direction = 0;
237     strip->split_flag = 0;
238     strip->usl7 = 0;
239
240     bit_pos = 0;
241
242     rle_v1 = rle_v2 = rle_v3 = 0;
243
244     while(strip >= strip_tbl) {
245         if(bit_pos <= 0) {
246             bit_pos = 8;
247             bit_buf = *buf1++;
248         }
249
250         bit_pos -= 2;
251         cmd = (bit_buf >> bit_pos) & 0x03;
252
253         if(cmd == 0) {
254             strip++;
255             if(strip >= strip_tbl + FF_ARRAY_ELEMS(strip_tbl)) {
256                 av_log(s->avctx, AV_LOG_WARNING, "out of range strip\n");
257                 break;
258             }
259             memcpy(strip, strip-1, sizeof(*strip));
260             strip->split_flag = 1;
261             strip->split_direction = 0;
262             strip->height = (strip->height > 8 ? ((strip->height+8)>>4)<<3 : 4);
263             continue;
264         } else if(cmd == 1) {
265             strip++;
266             if(strip >= strip_tbl + FF_ARRAY_ELEMS(strip_tbl)) {
267                 av_log(s->avctx, AV_LOG_WARNING, "out of range strip\n");
268                 break;
269             }
270             memcpy(strip, strip-1, sizeof(*strip));
271             strip->split_flag = 1;
272             strip->split_direction = 1;
273             strip->width = (strip->width > 8 ? ((strip->width+8)>>4)<<3 : 4);
274             continue;
275         } else if(cmd == 2) {
276             if(strip->usl7 == 0) {
277                 strip->usl7 = 1;
278                 ref_vectors = NULL;
279                 continue;
280             }
281         } else if(cmd == 3) {
282             if(strip->usl7 == 0) {
283                 strip->usl7 = 1;
284                 ref_vectors = (const signed char*)buf2 + (*buf1 * 2);
285                 buf1++;
286                 continue;
287             }
288         }
289
290         cur_frm_pos = cur + width * strip->ypos + strip->xpos;
291
292         if((blks_width = strip->width) < 0)
293             blks_width += 3;
294         blks_width >>= 2;
295         blks_height = strip->height;
296
297         if(ref_vectors != NULL) {
298             ref_frm_pos = ref + (ref_vectors[0] + strip->ypos) * width +
299                 ref_vectors[1] + strip->xpos;
300         } else
301             ref_frm_pos = cur_frm_pos - width_tbl[4];
302
303         if(cmd == 2) {
304             if(bit_pos <= 0) {
305                 bit_pos = 8;
306                 bit_buf = *buf1++;
307             }
308
309             bit_pos -= 2;
310             cmd = (bit_buf >> bit_pos) & 0x03;
311
312             if(cmd == 0 || ref_vectors != NULL) {
313                 for(lp1 = 0; lp1 < blks_width; lp1++) {
314                     for(i = 0, j = 0; i < blks_height; i++, j += width_tbl[1])
315                         ((uint32_t *)cur_frm_pos)[j] = ((uint32_t *)ref_frm_pos)[j];
316                     cur_frm_pos += 4;
317                     ref_frm_pos += 4;
318                 }
319             } else if(cmd != 1)
320                 return;
321         } else {
322             k = *buf1 >> 4;
323             j = *buf1 & 0x0f;
324             buf1++;
325             lv = j + cb_offset;
326
327             if((lv - 8) <= 7 && (k == 0 || k == 3 || k == 10)) {
328                 cp2 = s->ModPred + ((lv - 8) << 7);
329                 cp = ref_frm_pos;
330                 for(i = 0; i < blks_width << 2; i++) {
331                     int v = *cp >> 1;
332                     *(cp++) = cp2[v];
333                 }
334             }
335
336             if(k == 1 || k == 4) {
337                 lv = (hdr[j] & 0xf) + cb_offset;
338                 correction_type_sp[0] = s->corrector_type + (lv << 8);
339                 correction_lp[0] = correction + (lv << 8);
340                 lv = (hdr[j] >> 4) + cb_offset;
341                 correction_lp[1] = correction + (lv << 8);
342                 correction_type_sp[1] = s->corrector_type + (lv << 8);
343             } else {
344                 correctionloworder_lp[0] = correctionloworder_lp[1] = correctionloworder + (lv << 8);
345                 correctionhighorder_lp[0] = correctionhighorder_lp[1] = correctionhighorder + (lv << 8);
346                 correction_type_sp[0] = correction_type_sp[1] = s->corrector_type + (lv << 8);
347                 correction_lp[0] = correction_lp[1] = correction + (lv << 8);
348             }
349
350             switch(k) {
351             case 1:
352             case 0:                    /********** CASE 0 **********/
353                 for( ; blks_height > 0; blks_height -= 4) {
354                     for(lp1 = 0; lp1 < blks_width; lp1++) {
355                         for(lp2 = 0; lp2 < 4; ) {
356                             k = *buf1++;
357                             cur_lp = ((uint32_t *)cur_frm_pos) + width_tbl[lp2];
358                             ref_lp = ((uint32_t *)ref_frm_pos) + width_tbl[lp2];
359
360                             switch(correction_type_sp[0][k]) {
361                             case 0:
362                                 *cur_lp = le2me_32(((le2me_32(*ref_lp) >> 1) + correction_lp[lp2 & 0x01][k]) << 1);
363                                 lp2++;
364                                 break;
365                             case 1:
366                                 res = ((le2me_16(((unsigned short *)(ref_lp))[0]) >> 1) + correction_lp[lp2 & 0x01][*buf1]) << 1;
367                                 ((unsigned short *)cur_lp)[0] = le2me_16(res);
368                                 res = ((le2me_16(((unsigned short *)(ref_lp))[1]) >> 1) + correction_lp[lp2 & 0x01][k]) << 1;
369                                 ((unsigned short *)cur_lp)[1] = le2me_16(res);
370                                 buf1++;
371                                 lp2++;
372                                 break;
373                             case 2:
374                                 if(lp2 == 0) {
375                                     for(i = 0, j = 0; i < 2; i++, j += width_tbl[1])
376                                         cur_lp[j] = ref_lp[j];
377                                     lp2 += 2;
378                                 }
379                                 break;
380                             case 3:
381                                 if(lp2 < 2) {
382                                     for(i = 0, j = 0; i < (3 - lp2); i++, j += width_tbl[1])
383                                         cur_lp[j] = ref_lp[j];
384                                     lp2 = 3;
385                                 }
386                                 break;
387                             case 8:
388                                 if(lp2 == 0) {
389                                     RLE_V3_CHECK(buf1,rle_v1,rle_v2,rle_v3)
390
391                                     if(rle_v1 == 1 || ref_vectors != NULL) {
392                                         for(i = 0, j = 0; i < 4; i++, j += width_tbl[1])
393                                             cur_lp[j] = ref_lp[j];
394                                     }
395
396                                     RLE_V2_CHECK(buf1,rle_v2, rle_v3,lp2)
397                                     break;
398                                 } else {
399                                     rle_v1 = 1;
400                                     rle_v2 = *buf1 - 1;
401                                 }
402                             case 5:
403                                 LP2_CHECK(buf1,rle_v3,lp2)
404                             case 4:
405                                 for(i = 0, j = 0; i < (4 - lp2); i++, j += width_tbl[1])
406                                     cur_lp[j] = ref_lp[j];
407                                 lp2 = 4;
408                                 break;
409
410                             case 7:
411                                 if(rle_v3 != 0)
412                                     rle_v3 = 0;
413                                 else {
414                                     buf1--;
415                                     rle_v3 = 1;
416                                 }
417                             case 6:
418                                 if(ref_vectors != NULL) {
419                                     for(i = 0, j = 0; i < 4; i++, j += width_tbl[1])
420                                         cur_lp[j] = ref_lp[j];
421                                 }
422                                 lp2 = 4;
423                                 break;
424
425                             case 9:
426                                 lv1 = *buf1++;
427                                 lv = (lv1 & 0x7F) << 1;
428                                 lv += (lv << 8);
429                                 lv += (lv << 16);
430                                 for(i = 0, j = 0; i < 4; i++, j += width_tbl[1])
431                                     cur_lp[j] = lv;
432
433                                 LV1_CHECK(buf1,rle_v3,lv1,lp2)
434                                 break;
435                             default:
436                                 return;
437                             }
438                         }
439
440                         cur_frm_pos += 4;
441                         ref_frm_pos += 4;
442                     }
443
444                     cur_frm_pos += ((width - blks_width) * 4);
445                     ref_frm_pos += ((width - blks_width) * 4);
446                 }
447                 break;
448
449             case 4:
450             case 3:                    /********** CASE 3 **********/
451                 if(ref_vectors != NULL)
452                     return;
453                 flag1 = 1;
454
455                 for( ; blks_height > 0; blks_height -= 8) {
456                     for(lp1 = 0; lp1 < blks_width; lp1++) {
457                         for(lp2 = 0; lp2 < 4; ) {
458                             k = *buf1++;
459
460                             cur_lp = ((uint32_t *)cur_frm_pos) + width_tbl[lp2 * 2];
461                             ref_lp = ((uint32_t *)cur_frm_pos) + width_tbl[(lp2 * 2) - 1];
462
463                             switch(correction_type_sp[lp2 & 0x01][k]) {
464                             case 0:
465                                 cur_lp[width_tbl[1]] = le2me_32(((le2me_32(*ref_lp) >> 1) + correction_lp[lp2 & 0x01][k]) << 1);
466                                 if(lp2 > 0 || flag1 == 0 || strip->ypos != 0)
467                                     cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE;
468                                 else
469                                     cur_lp[0] = le2me_32(((le2me_32(*ref_lp) >> 1) + correction_lp[lp2 & 0x01][k]) << 1);
470                                 lp2++;
471                                 break;
472
473                             case 1:
474                                 res = ((le2me_16(((unsigned short *)ref_lp)[0]) >> 1) + correction_lp[lp2 & 0x01][*buf1]) << 1;
475                                 ((unsigned short *)cur_lp)[width_tbl[2]] = le2me_16(res);
476                                 res = ((le2me_16(((unsigned short *)ref_lp)[1]) >> 1) + correction_lp[lp2 & 0x01][k]) << 1;
477                                 ((unsigned short *)cur_lp)[width_tbl[2]+1] = le2me_16(res);
478
479                                 if(lp2 > 0 || flag1 == 0 || strip->ypos != 0)
480                                     cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE;
481                                 else
482                                     cur_lp[0] = cur_lp[width_tbl[1]];
483                                 buf1++;
484                                 lp2++;
485                                 break;
486
487                             case 2:
488                                 if(lp2 == 0) {
489                                     for(i = 0, j = 0; i < 4; i++, j += width_tbl[1])
490                                         cur_lp[j] = *ref_lp;
491                                     lp2 += 2;
492                                 }
493                                 break;
494
495                             case 3:
496                                 if(lp2 < 2) {
497                                     for(i = 0, j = 0; i < 6 - (lp2 * 2); i++, j += width_tbl[1])
498                                         cur_lp[j] = *ref_lp;
499                                     lp2 = 3;
500                                 }
501                                 break;
502
503                             case 6:
504                                 lp2 = 4;
505                                 break;
506
507                             case 7:
508                                 if(rle_v3 != 0)
509                                     rle_v3 = 0;
510                                 else {
511                                     buf1--;
512                                     rle_v3 = 1;
513                                 }
514                                 lp2 = 4;
515                                 break;
516
517                             case 8:
518                                 if(lp2 == 0) {
519                                     RLE_V3_CHECK(buf1,rle_v1,rle_v2,rle_v3)
520
521                                     if(rle_v1 == 1) {
522                                         for(i = 0, j = 0; i < 8; i++, j += width_tbl[1])
523                                             cur_lp[j] = ref_lp[j];
524                                     }
525
526                                     RLE_V2_CHECK(buf1,rle_v2, rle_v3,lp2)
527                                     break;
528                                 } else {
529                                     rle_v2 = (*buf1) - 1;
530                                     rle_v1 = 1;
531                                 }
532                             case 5:
533                                 LP2_CHECK(buf1,rle_v3,lp2)
534                             case 4:
535                                 for(i = 0, j = 0; i < 8 - (lp2 * 2); i++, j += width_tbl[1])
536                                     cur_lp[j] = *ref_lp;
537                                 lp2 = 4;
538                                 break;
539
540                             case 9:
541                                 av_log(s->avctx, AV_LOG_ERROR, "UNTESTED.\n");
542                                 lv1 = *buf1++;
543                                 lv = (lv1 & 0x7F) << 1;
544                                 lv += (lv << 8);
545                                 lv += (lv << 16);
546
547                                 for(i = 0, j = 0; i < 4; i++, j += width_tbl[1])
548                                     cur_lp[j] = lv;
549
550                                 LV1_CHECK(buf1,rle_v3,lv1,lp2)
551                                 break;
552
553                             default:
554                                 return;
555                             }
556                         }
557
558                         cur_frm_pos += 4;
559                     }
560
561                     cur_frm_pos += (((width * 2) - blks_width) * 4);
562                     flag1 = 0;
563                 }
564                 break;
565
566             case 10:                    /********** CASE 10 **********/
567                 if(ref_vectors == NULL) {
568                     flag1 = 1;
569
570                     for( ; blks_height > 0; blks_height -= 8) {
571                         for(lp1 = 0; lp1 < blks_width; lp1 += 2) {
572                             for(lp2 = 0; lp2 < 4; ) {
573                                 k = *buf1++;
574                                 cur_lp = ((uint32_t *)cur_frm_pos) + width_tbl[lp2 * 2];
575                                 ref_lp = ((uint32_t *)cur_frm_pos) + width_tbl[(lp2 * 2) - 1];
576                                 lv1 = ref_lp[0];
577                                 lv2 = ref_lp[1];
578                                 if(lp2 == 0 && flag1 != 0) {
579 #if HAVE_BIGENDIAN
580                                     lv1 = lv1 & 0xFF00FF00;
581                                     lv1 = (lv1 >> 8) | lv1;
582                                     lv2 = lv2 & 0xFF00FF00;
583                                     lv2 = (lv2 >> 8) | lv2;
584 #else
585                                     lv1 = lv1 & 0x00FF00FF;
586                                     lv1 = (lv1 << 8) | lv1;
587                                     lv2 = lv2 & 0x00FF00FF;
588                                     lv2 = (lv2 << 8) | lv2;
589 #endif
590                                 }
591
592                                 switch(correction_type_sp[lp2 & 0x01][k]) {
593                                 case 0:
594                                     cur_lp[width_tbl[1]] = le2me_32(((le2me_32(lv1) >> 1) + correctionloworder_lp[lp2 & 0x01][k]) << 1);
595                                     cur_lp[width_tbl[1]+1] = le2me_32(((le2me_32(lv2) >> 1) + correctionhighorder_lp[lp2 & 0x01][k]) << 1);
596                                     if(lp2 > 0 || strip->ypos != 0 || flag1 == 0) {
597                                         cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE;
598                                         cur_lp[1] = ((cur_lp[-width_tbl[1]+1] >> 1) + (cur_lp[width_tbl[1]+1] >> 1)) & 0xFEFEFEFE;
599                                     } else {
600                                         cur_lp[0] = cur_lp[width_tbl[1]];
601                                         cur_lp[1] = cur_lp[width_tbl[1]+1];
602                                     }
603                                     lp2++;
604                                     break;
605
606                                 case 1:
607                                     cur_lp[width_tbl[1]] = le2me_32(((le2me_32(lv1) >> 1) + correctionloworder_lp[lp2 & 0x01][*buf1]) << 1);
608                                     cur_lp[width_tbl[1]+1] = le2me_32(((le2me_32(lv2) >> 1) + correctionloworder_lp[lp2 & 0x01][k]) << 1);
609                                     if(lp2 > 0 || strip->ypos != 0 || flag1 == 0) {
610                                         cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE;
611                                         cur_lp[1] = ((cur_lp[-width_tbl[1]+1] >> 1) + (cur_lp[width_tbl[1]+1] >> 1)) & 0xFEFEFEFE;
612                                     } else {
613                                         cur_lp[0] = cur_lp[width_tbl[1]];
614                                         cur_lp[1] = cur_lp[width_tbl[1]+1];
615                                     }
616                                     buf1++;
617                                     lp2++;
618                                     break;
619
620                                 case 2:
621                                     if(lp2 == 0) {
622                                         if(flag1 != 0) {
623                                             for(i = 0, j = width_tbl[1]; i < 3; i++, j += width_tbl[1]) {
624                                                 cur_lp[j] = lv1;
625                                                 cur_lp[j+1] = lv2;
626                                             }
627                                             cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE;
628                                             cur_lp[1] = ((cur_lp[-width_tbl[1]+1] >> 1) + (cur_lp[width_tbl[1]+1] >> 1)) & 0xFEFEFEFE;
629                                         } else {
630                                             for(i = 0, j = 0; i < 4; i++, j += width_tbl[1]) {
631                                                 cur_lp[j] = lv1;
632                                                 cur_lp[j+1] = lv2;
633                                             }
634                                         }
635                                         lp2 += 2;
636                                     }
637                                     break;
638
639                                 case 3:
640                                     if(lp2 < 2) {
641                                         if(lp2 == 0 && flag1 != 0) {
642                                             for(i = 0, j = width_tbl[1]; i < 5; i++, j += width_tbl[1]) {
643                                                 cur_lp[j] = lv1;
644                                                 cur_lp[j+1] = lv2;
645                                             }
646                                             cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE;
647                                             cur_lp[1] = ((cur_lp[-width_tbl[1]+1] >> 1) + (cur_lp[width_tbl[1]+1] >> 1)) & 0xFEFEFEFE;
648                                         } else {
649                                             for(i = 0, j = 0; i < 6 - (lp2 * 2); i++, j += width_tbl[1]) {
650                                                 cur_lp[j] = lv1;
651                                                 cur_lp[j+1] = lv2;
652                                             }
653                                         }
654                                         lp2 = 3;
655                                     }
656                                     break;
657
658                                 case 8:
659                                     if(lp2 == 0) {
660                                         RLE_V3_CHECK(buf1,rle_v1,rle_v2,rle_v3)
661                                         if(rle_v1 == 1) {
662                                             if(flag1 != 0) {
663                                                 for(i = 0, j = width_tbl[1]; i < 7; i++, j += width_tbl[1]) {
664                                                     cur_lp[j] = lv1;
665                                                     cur_lp[j+1] = lv2;
666                                                 }
667                                                 cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE;
668                                                 cur_lp[1] = ((cur_lp[-width_tbl[1]+1] >> 1) + (cur_lp[width_tbl[1]+1] >> 1)) & 0xFEFEFEFE;
669                                             } else {
670                                                 for(i = 0, j = 0; i < 8; i++, j += width_tbl[1]) {
671                                                     cur_lp[j] = lv1;
672                                                     cur_lp[j+1] = lv2;
673                                                 }
674                                             }
675                                         }
676                                         RLE_V2_CHECK(buf1,rle_v2, rle_v3,lp2)
677                                         break;
678                                     } else {
679                                         rle_v1 = 1;
680                                         rle_v2 = (*buf1) - 1;
681                                     }
682                                 case 5:
683                                     LP2_CHECK(buf1,rle_v3,lp2)
684                                 case 4:
685                                     if(lp2 == 0 && flag1 != 0) {
686                                         for(i = 0, j = width_tbl[1]; i < 7; i++, j += width_tbl[1]) {
687                                             cur_lp[j] = lv1;
688                                             cur_lp[j+1] = lv2;
689                                         }
690                                         cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE;
691                                         cur_lp[1] = ((cur_lp[-width_tbl[1]+1] >> 1) + (cur_lp[width_tbl[1]+1] >> 1)) & 0xFEFEFEFE;
692                                     } else {
693                                         for(i = 0, j = 0; i < 8 - (lp2 * 2); i++, j += width_tbl[1]) {
694                                             cur_lp[j] = lv1;
695                                             cur_lp[j+1] = lv2;
696                                         }
697                                     }
698                                     lp2 = 4;
699                                     break;
700
701                                 case 6:
702                                     lp2 = 4;
703                                     break;
704
705                                 case 7:
706                                     if(lp2 == 0) {
707                                         if(rle_v3 != 0)
708                                             rle_v3 = 0;
709                                         else {
710                                             buf1--;
711                                             rle_v3 = 1;
712                                         }
713                                         lp2 = 4;
714                                     }
715                                     break;
716
717                                 case 9:
718                                     av_log(s->avctx, AV_LOG_ERROR, "UNTESTED.\n");
719                                     lv1 = *buf1;
720                                     lv = (lv1 & 0x7F) << 1;
721                                     lv += (lv << 8);
722                                     lv += (lv << 16);
723                                     for(i = 0, j = 0; i < 8; i++, j += width_tbl[1])
724                                         cur_lp[j] = lv;
725                                     LV1_CHECK(buf1,rle_v3,lv1,lp2)
726                                     break;
727
728                                 default:
729                                     return;
730                                 }
731                             }
732
733                             cur_frm_pos += 8;
734                         }
735
736                         cur_frm_pos += (((width * 2) - blks_width) * 4);
737                         flag1 = 0;
738                     }
739                 } else {
740                     for( ; blks_height > 0; blks_height -= 8) {
741                         for(lp1 = 0; lp1 < blks_width; lp1 += 2) {
742                             for(lp2 = 0; lp2 < 4; ) {
743                                 k = *buf1++;
744                                 cur_lp = ((uint32_t *)cur_frm_pos) + width_tbl[lp2 * 2];
745                                 ref_lp = ((uint32_t *)ref_frm_pos) + width_tbl[lp2 * 2];
746
747                                 switch(correction_type_sp[lp2 & 0x01][k]) {
748                                 case 0:
749                                     lv1 = correctionloworder_lp[lp2 & 0x01][k];
750                                     lv2 = correctionhighorder_lp[lp2 & 0x01][k];
751                                     cur_lp[0] = le2me_32(((le2me_32(ref_lp[0]) >> 1) + lv1) << 1);
752                                     cur_lp[1] = le2me_32(((le2me_32(ref_lp[1]) >> 1) + lv2) << 1);
753                                     cur_lp[width_tbl[1]] = le2me_32(((le2me_32(ref_lp[width_tbl[1]]) >> 1) + lv1) << 1);
754                                     cur_lp[width_tbl[1]+1] = le2me_32(((le2me_32(ref_lp[width_tbl[1]+1]) >> 1) + lv2) << 1);
755                                     lp2++;
756                                     break;
757
758                                 case 1:
759                                     lv1 = correctionloworder_lp[lp2 & 0x01][*buf1++];
760                                     lv2 = correctionloworder_lp[lp2 & 0x01][k];
761                                     cur_lp[0] = le2me_32(((le2me_32(ref_lp[0]) >> 1) + lv1) << 1);
762                                     cur_lp[1] = le2me_32(((le2me_32(ref_lp[1]) >> 1) + lv2) << 1);
763                                     cur_lp[width_tbl[1]] = le2me_32(((le2me_32(ref_lp[width_tbl[1]]) >> 1) + lv1) << 1);
764                                     cur_lp[width_tbl[1]+1] = le2me_32(((le2me_32(ref_lp[width_tbl[1]+1]) >> 1) + lv2) << 1);
765                                     lp2++;
766                                     break;
767
768                                 case 2:
769                                     if(lp2 == 0) {
770                                         for(i = 0, j = 0; i < 4; i++, j += width_tbl[1]) {
771                                             cur_lp[j] = ref_lp[j];
772                                             cur_lp[j+1] = ref_lp[j+1];
773                                         }
774                                         lp2 += 2;
775                                     }
776                                     break;
777
778                                 case 3:
779                                     if(lp2 < 2) {
780                                         for(i = 0, j = 0; i < 6 - (lp2 * 2); i++, j += width_tbl[1]) {
781                                             cur_lp[j] = ref_lp[j];
782                                             cur_lp[j+1] = ref_lp[j+1];
783                                         }
784                                         lp2 = 3;
785                                     }
786                                     break;
787
788                                 case 8:
789                                     if(lp2 == 0) {
790                                         RLE_V3_CHECK(buf1,rle_v1,rle_v2,rle_v3)
791                                         for(i = 0, j = 0; i < 8; i++, j += width_tbl[1]) {
792                                             ((uint32_t *)cur_frm_pos)[j] = ((uint32_t *)ref_frm_pos)[j];
793                                             ((uint32_t *)cur_frm_pos)[j+1] = ((uint32_t *)ref_frm_pos)[j+1];
794                                         }
795                                         RLE_V2_CHECK(buf1,rle_v2, rle_v3,lp2)
796                                         break;
797                                     } else {
798                                         rle_v1 = 1;
799                                         rle_v2 = (*buf1) - 1;
800                                     }
801                                 case 5:
802                                 case 7:
803                                     LP2_CHECK(buf1,rle_v3,lp2)
804                                 case 6:
805                                 case 4:
806                                     for(i = 0, j = 0; i < 8 - (lp2 * 2); i++, j += width_tbl[1]) {
807                                         cur_lp[j] = ref_lp[j];
808                                         cur_lp[j+1] = ref_lp[j+1];
809                                     }
810                                     lp2 = 4;
811                                     break;
812
813                                 case 9:
814                                     av_log(s->avctx, AV_LOG_ERROR, "UNTESTED.\n");
815                                     lv1 = *buf1;
816                                     lv = (lv1 & 0x7F) << 1;
817                                     lv += (lv << 8);
818                                     lv += (lv << 16);
819                                     for(i = 0, j = 0; i < 8; i++, j += width_tbl[1])
820                                         ((uint32_t *)cur_frm_pos)[j] = ((uint32_t *)cur_frm_pos)[j+1] = lv;
821                                     LV1_CHECK(buf1,rle_v3,lv1,lp2)
822                                     break;
823
824                                 default:
825                                     return;
826                                 }
827                             }
828
829                             cur_frm_pos += 8;
830                             ref_frm_pos += 8;
831                         }
832
833                         cur_frm_pos += (((width * 2) - blks_width) * 4);
834                         ref_frm_pos += (((width * 2) - blks_width) * 4);
835                     }
836                 }
837                 break;
838
839             case 11:                    /********** CASE 11 **********/
840                 if(ref_vectors == NULL)
841                     return;
842
843                 for( ; blks_height > 0; blks_height -= 8) {
844                     for(lp1 = 0; lp1 < blks_width; lp1++) {
845                         for(lp2 = 0; lp2 < 4; ) {
846                             k = *buf1++;
847                             cur_lp = ((uint32_t *)cur_frm_pos) + width_tbl[lp2 * 2];
848                             ref_lp = ((uint32_t *)ref_frm_pos) + width_tbl[lp2 * 2];
849
850                             switch(correction_type_sp[lp2 & 0x01][k]) {
851                             case 0:
852                                 cur_lp[0] = le2me_32(((le2me_32(*ref_lp) >> 1) + correction_lp[lp2 & 0x01][k]) << 1);
853                                 cur_lp[width_tbl[1]] = le2me_32(((le2me_32(ref_lp[width_tbl[1]]) >> 1) + correction_lp[lp2 & 0x01][k]) << 1);
854                                 lp2++;
855                                 break;
856
857                             case 1:
858                                 lv1 = (unsigned short)(correction_lp[lp2 & 0x01][*buf1++]);
859                                 lv2 = (unsigned short)(correction_lp[lp2 & 0x01][k]);
860                                 res = (unsigned short)(((le2me_16(((unsigned short *)ref_lp)[0]) >> 1) + lv1) << 1);
861                                 ((unsigned short *)cur_lp)[0] = le2me_16(res);
862                                 res = (unsigned short)(((le2me_16(((unsigned short *)ref_lp)[1]) >> 1) + lv2) << 1);
863                                 ((unsigned short *)cur_lp)[1] = le2me_16(res);
864                                 res = (unsigned short)(((le2me_16(((unsigned short *)ref_lp)[width_tbl[2]]) >> 1) + lv1) << 1);
865                                 ((unsigned short *)cur_lp)[width_tbl[2]] = le2me_16(res);
866                                 res = (unsigned short)(((le2me_16(((unsigned short *)ref_lp)[width_tbl[2]+1]) >> 1) + lv2) << 1);
867                                 ((unsigned short *)cur_lp)[width_tbl[2]+1] = le2me_16(res);
868                                 lp2++;
869                                 break;
870
871                             case 2:
872                                 if(lp2 == 0) {
873                                     for(i = 0, j = 0; i < 4; i++, j += width_tbl[1])
874                                         cur_lp[j] = ref_lp[j];
875                                     lp2 += 2;
876                                 }
877                                 break;
878
879                             case 3:
880                                 if(lp2 < 2) {
881                                     for(i = 0, j = 0; i < 6 - (lp2 * 2); i++, j += width_tbl[1])
882                                         cur_lp[j] = ref_lp[j];
883                                     lp2 = 3;
884                                 }
885                                 break;
886
887                             case 8:
888                                 if(lp2 == 0) {
889                                     RLE_V3_CHECK(buf1,rle_v1,rle_v2,rle_v3)
890
891                                     for(i = 0, j = 0; i < 8; i++, j += width_tbl[1])
892                                         cur_lp[j] = ref_lp[j];
893
894                                     RLE_V2_CHECK(buf1,rle_v2, rle_v3,lp2)
895                                     break;
896                                 } else {
897                                     rle_v1 = 1;
898                                     rle_v2 = (*buf1) - 1;
899                                 }
900                             case 5:
901                             case 7:
902                                 LP2_CHECK(buf1,rle_v3,lp2)
903                             case 4:
904                             case 6:
905                                 for(i = 0, j = 0; i < 8 - (lp2 * 2); i++, j += width_tbl[1])
906                                     cur_lp[j] = ref_lp[j];
907                                 lp2 = 4;
908                                 break;
909
910                             case 9:
911                                 av_log(s->avctx, AV_LOG_ERROR, "UNTESTED.\n");
912                                 lv1 = *buf1++;
913                                 lv = (lv1 & 0x7F) << 1;
914                                 lv += (lv << 8);
915                                 lv += (lv << 16);
916                                 for(i = 0, j = 0; i < 4; i++, j += width_tbl[1])
917                                     cur_lp[j] = lv;
918                                 LV1_CHECK(buf1,rle_v3,lv1,lp2)
919                                 break;
920
921                             default:
922                                 return;
923                             }
924                         }
925
926                         cur_frm_pos += 4;
927                         ref_frm_pos += 4;
928                     }
929
930                     cur_frm_pos += (((width * 2) - blks_width) * 4);
931                     ref_frm_pos += (((width * 2) - blks_width) * 4);
932                 }
933                 break;
934
935             default:
936                 return;
937             }
938         }
939
940         for( ; strip >= strip_tbl; strip--) {
941             if(strip->split_flag != 0) {
942                 strip->split_flag = 0;
943                 strip->usl7 = (strip-1)->usl7;
944
945                 if(strip->split_direction) {
946                     strip->xpos += strip->width;
947                     strip->width = (strip-1)->width - strip->width;
948                     if(region_160_width <= strip->xpos && width < strip->width + strip->xpos)
949                         strip->width = width - strip->xpos;
950                 } else {
951                     strip->ypos += strip->height;
952                     strip->height = (strip-1)->height - strip->height;
953                 }
954                 break;
955             }
956         }
957     }
958 }
959
960 static av_cold int indeo3_decode_init(AVCodecContext *avctx)
961 {
962     Indeo3DecodeContext *s = avctx->priv_data;
963     int ret = 0;
964
965     s->avctx = avctx;
966     s->width = avctx->width;
967     s->height = avctx->height;
968     avctx->pix_fmt = PIX_FMT_YUV410P;
969
970     if (!(ret = build_modpred(s)))
971         ret = iv_alloc_frames(s);
972     if (ret)
973         iv_free_func(s);
974
975     return ret;
976 }
977
978 static int iv_decode_frame(AVCodecContext *avctx,
979                            const uint8_t *buf, int buf_size)
980 {
981     Indeo3DecodeContext *s = avctx->priv_data;
982     unsigned int image_width, image_height,
983                  chroma_width, chroma_height;
984     unsigned long flags, cb_offset, data_size,
985                   y_offset, v_offset, u_offset, mc_vector_count;
986     const uint8_t *hdr_pos, *buf_pos;
987
988     buf_pos = buf;
989     buf_pos += 18; /* skip OS header (16 bytes) and version number */
990
991     flags = bytestream_get_le16(&buf_pos);
992     data_size = bytestream_get_le32(&buf_pos);
993     cb_offset = *buf_pos++;
994     buf_pos += 3; /* skip reserved byte and checksum */
995     image_height = bytestream_get_le16(&buf_pos);
996     image_width  = bytestream_get_le16(&buf_pos);
997
998     if(avcodec_check_dimensions(avctx, image_width, image_height))
999         return -1;
1000     if (image_width != avctx->width || image_height != avctx->height) {
1001         int ret;
1002         avcodec_set_dimensions(avctx, image_width, image_height);
1003         s->width  = avctx->width;
1004         s->height = avctx->height;
1005         ret = iv_alloc_frames(s);
1006         if (ret < 0) {
1007             s->width = s->height = 0;
1008             return ret;
1009         }
1010     }
1011
1012     chroma_height = ((image_height >> 2) + 3) & 0x7ffc;
1013     chroma_width = ((image_width >> 2) + 3) & 0x7ffc;
1014     y_offset = bytestream_get_le32(&buf_pos);
1015     v_offset = bytestream_get_le32(&buf_pos);
1016     u_offset = bytestream_get_le32(&buf_pos);
1017     buf_pos += 4; /* reserved */
1018     hdr_pos = buf_pos;
1019     if(data_size == 0x80) return 4;
1020
1021     if(FFMAX3(y_offset, v_offset, u_offset) >= buf_size-16) {
1022         av_log(s->avctx, AV_LOG_ERROR, "y/u/v offset outside buffer\n");
1023         return -1;
1024     }
1025
1026     if(flags & 0x200) {
1027         s->cur_frame = s->iv_frame + 1;
1028         s->ref_frame = s->iv_frame;
1029     } else {
1030         s->cur_frame = s->iv_frame;
1031         s->ref_frame = s->iv_frame + 1;
1032     }
1033
1034     buf_pos = buf + 16 + y_offset;
1035     mc_vector_count = bytestream_get_le32(&buf_pos);
1036     if(2LL*mc_vector_count >= buf_size-16-y_offset) {
1037         av_log(s->avctx, AV_LOG_ERROR, "mc_vector_count too large\n");
1038         return -1;
1039     }
1040
1041     iv_Decode_Chunk(s, s->cur_frame->Ybuf, s->ref_frame->Ybuf, image_width,
1042                     image_height, buf_pos + mc_vector_count * 2, cb_offset, hdr_pos, buf_pos,
1043                     FFMIN(image_width, 160));
1044
1045     if (!(s->avctx->flags & CODEC_FLAG_GRAY))
1046     {
1047
1048         buf_pos = buf + 16 + v_offset;
1049         mc_vector_count = bytestream_get_le32(&buf_pos);
1050         if(2LL*mc_vector_count >= buf_size-16-v_offset) {
1051             av_log(s->avctx, AV_LOG_ERROR, "mc_vector_count too large\n");
1052             return -1;
1053         }
1054
1055         iv_Decode_Chunk(s, s->cur_frame->Vbuf, s->ref_frame->Vbuf, chroma_width,
1056                 chroma_height, buf_pos + mc_vector_count * 2, cb_offset, hdr_pos, buf_pos,
1057                 FFMIN(chroma_width, 40));
1058
1059         buf_pos = buf + 16 + u_offset;
1060         mc_vector_count = bytestream_get_le32(&buf_pos);
1061         if(2LL*mc_vector_count >= buf_size-16-u_offset) {
1062             av_log(s->avctx, AV_LOG_ERROR, "mc_vector_count too large\n");
1063             return -1;
1064         }
1065
1066         iv_Decode_Chunk(s, s->cur_frame->Ubuf, s->ref_frame->Ubuf, chroma_width,
1067                 chroma_height, buf_pos + mc_vector_count * 2, cb_offset, hdr_pos, buf_pos,
1068                 FFMIN(chroma_width, 40));
1069
1070     }
1071
1072     return 8;
1073 }
1074
1075 static int indeo3_decode_frame(AVCodecContext *avctx,
1076                                void *data, int *data_size,
1077                                AVPacket *avpkt)
1078 {
1079     const uint8_t *buf = avpkt->data;
1080     int buf_size = avpkt->size;
1081     Indeo3DecodeContext *s=avctx->priv_data;
1082     uint8_t *src, *dest;
1083     int y;
1084
1085     if (iv_decode_frame(avctx, buf, buf_size) < 0)
1086         return -1;
1087
1088     if(s->frame.data[0])
1089         avctx->release_buffer(avctx, &s->frame);
1090
1091     s->frame.reference = 0;
1092     if(avctx->get_buffer(avctx, &s->frame) < 0) {
1093         av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed\n");
1094         return -1;
1095     }
1096
1097     src = s->cur_frame->Ybuf;
1098     dest = s->frame.data[0];
1099     for (y = 0; y < s->height; y++) {
1100         memcpy(dest, src, s->cur_frame->y_w);
1101         src += s->cur_frame->y_w;
1102         dest += s->frame.linesize[0];
1103     }
1104
1105     if (!(s->avctx->flags & CODEC_FLAG_GRAY))
1106     {
1107         src = s->cur_frame->Ubuf;
1108         dest = s->frame.data[1];
1109         for (y = 0; y < s->height / 4; y++) {
1110             memcpy(dest, src, s->cur_frame->uv_w);
1111             src += s->cur_frame->uv_w;
1112             dest += s->frame.linesize[1];
1113         }
1114
1115         src = s->cur_frame->Vbuf;
1116         dest = s->frame.data[2];
1117         for (y = 0; y < s->height / 4; y++) {
1118             memcpy(dest, src, s->cur_frame->uv_w);
1119             src += s->cur_frame->uv_w;
1120             dest += s->frame.linesize[2];
1121         }
1122     }
1123
1124     *data_size=sizeof(AVFrame);
1125     *(AVFrame*)data= s->frame;
1126
1127     return buf_size;
1128 }
1129
1130 static av_cold int indeo3_decode_end(AVCodecContext *avctx)
1131 {
1132     Indeo3DecodeContext *s = avctx->priv_data;
1133
1134     iv_free_func(s);
1135
1136     return 0;
1137 }
1138
1139 AVCodec indeo3_decoder = {
1140     "indeo3",
1141     CODEC_TYPE_VIDEO,
1142     CODEC_ID_INDEO3,
1143     sizeof(Indeo3DecodeContext),
1144     indeo3_decode_init,
1145     NULL,
1146     indeo3_decode_end,
1147     indeo3_decode_frame,
1148     CODEC_CAP_DR1,
1149     NULL,
1150     .long_name = NULL_IF_CONFIG_SMALL("Intel Indeo 3"),
1151 };