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 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 #include <unistd.h>
  26
  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 int the_buf_size;
  39     unsigned short y_w, y_h;
  40     unsigned short uv_w, uv_h;
  41 } YUVBufs;
  42
  43 typedef struct Indeo3DecodeContext {
  44     AVCodecContext *avctx;
  45     int width, height;
  46     AVFrame frame;
  47
  48     uint8_t *buf;
  49     YUVBufs iv_frame[2];
  50     YUVBufs *cur_frame;
  51     YUVBufs *ref_frame;
  52
  53     uint8_t *ModPred;
  54     uint8_t *corrector_type;
  55 } Indeo3DecodeContext;
  56
  57 static const uint8_t corrector_type_0[24] = {
  58     195, 159, 133, 115, 101,  93,  87,  77,
  59     195, 159, 133, 115, 101,  93,  87,  77,
  60     128,  79,  79,  79,  79,  79,  79,  79
  61 };
  62
  63 static const uint8_t corrector_type_2[8] = { 9, 7, 6, 8, 5, 4, 3, 2 };
  64
  65 static av_cold int build_modpred(Indeo3DecodeContext *s)
  66 {
  67     int i, j;
  68
  69     if (!(s->ModPred = av_malloc(8 * 128)))
  70         return AVERROR(ENOMEM);
  71
  72     for (i=0; i < 128; ++i) {
  73         s->ModPred[i+0*128] = i >  126 ? 254 : 2*(i + 1 - ((i + 1) % 2));
  74         s->ModPred[i+1*128] = i ==   7 ?  20 :
  75                               i == 119 ||
  76                               i == 120 ? 236 : 2*(i + 2 - ((i + 1) % 3));
  77         s->ModPred[i+2*128] = i >  125 ? 248 : 2*(i + 2 - ((i + 2) % 4));
  78         s->ModPred[i+3*128] =                  2*(i + 1 - ((i - 3) % 5));
  79         s->ModPred[i+4*128] = i ==   8 ?  20 : 2*(i + 1 - ((i - 3) % 6));
  80         s->ModPred[i+5*128] =                  2*(i + 4 - ((i + 3) % 7));
  81         s->ModPred[i+6*128] = i >  123 ? 240 : 2*(i + 4 - ((i + 4) % 8));
  82         s->ModPred[i+7*128] =                  2*(i + 5 - ((i + 4) % 9));
  83     }
  84
  85     if (!(s->corrector_type = av_malloc(24 * 256)))
  86         return AVERROR(ENOMEM);
  87
  88     for (i=0; i < 24; ++i) {
  89         for (j=0; j < 256; ++j) {
  90             s->corrector_type[i*256+j] = j < corrector_type_0[i]          ? 1 :
  91                                          j < 248 || (i == 16 && j == 248) ? 0 :
  92                                          corrector_type_2[j - 248];
  93         }
  94     }
  95
  96   return 0;
  97 }
  98
  99 static void iv_Decode_Chunk(Indeo3DecodeContext *s, uint8_t *cur,
 100         uint8_t *ref, int width, int height, const uint8_t *buf1,
 101         long fflags2, const uint8_t *hdr,
 102         const uint8_t *buf2, int min_width_160);
 103
 104 static av_cold int iv_alloc_frames(Indeo3DecodeContext *s)
 105 {
 106     int luma_width, luma_height, luma_pixels, chroma_width, chroma_height,
 107         chroma_pixels, i;
 108     unsigned int bufsize;
 109
 110     luma_width   = (s->width  + 3) & (~3);
 111     luma_height  = (s->height + 3) & (~3);
 112     chroma_width  = ((luma_width >> 2) + 3) & (~3);
 113     chroma_height = ((luma_height>> 2) + 3) & (~3);
 114     luma_pixels = luma_width * luma_height;
 115     chroma_pixels = chroma_width * chroma_height;
 116
 117     bufsize = luma_pixels * 2 + luma_width * 3 +
 118         (chroma_pixels + chroma_width) * 4;
 119
 120     if(!(s->buf = av_malloc(bufsize)))
 121         return AVERROR(ENOMEM);
 122     s->iv_frame[0].y_w = s->iv_frame[1].y_w = luma_width;
 123     s->iv_frame[0].y_h = s->iv_frame[1].y_h = luma_height;
 124     s->iv_frame[0].uv_w = s->iv_frame[1].uv_w = chroma_width;
 125     s->iv_frame[0].uv_h = s->iv_frame[1].uv_h = chroma_height;
 126     s->iv_frame[0].the_buf_size = bufsize;
 127
 128     s->iv_frame[0].Ybuf = s->buf + luma_width;
 129     i = luma_pixels + luma_width * 2;
 130     s->iv_frame[1].Ybuf = s->buf + i;
 131     i += (luma_pixels + luma_width);
 132     s->iv_frame[0].Ubuf = s->buf + i;
 133     i += (chroma_pixels + chroma_width);
 134     s->iv_frame[1].Ubuf = s->buf + i;
 135     i += (chroma_pixels + chroma_width);
 136     s->iv_frame[0].Vbuf = s->buf + i;
 137     i += (chroma_pixels + chroma_width);
 138     s->iv_frame[1].Vbuf = s->buf + i;
 139
 140     for(i = 1; i <= luma_width; i++)
 141         s->iv_frame[0].Ybuf[-i] = s->iv_frame[1].Ybuf[-i] =
 142             s->iv_frame[0].Ubuf[-i] = 0x80;
 143
 144     for(i = 1; i <= chroma_width; i++) {
 145         s->iv_frame[1].Ubuf[-i] = 0x80;
 146         s->iv_frame[0].Vbuf[-i] = 0x80;
 147         s->iv_frame[1].Vbuf[-i] = 0x80;
 148         s->iv_frame[1].Vbuf[chroma_pixels+i-1] = 0x80;
 149     }
 150
 151     return 0;
 152 }
 153
 154 static av_cold void iv_free_func(Indeo3DecodeContext *s)
 155 {
 156     av_free(s->buf);
 157     av_free(s->ModPred);
 158     av_free(s->corrector_type);
 159 }
 160
 161 static unsigned long iv_decode_frame(Indeo3DecodeContext *s,
 162                                      const uint8_t *buf, int buf_size)
 163 {
 164     unsigned int hdr_width, hdr_height,
 165                  chroma_width, chroma_height;
 166     unsigned long fflags1, fflags2, fflags3, offs1, offs2, offs3, offs;
 167     const uint8_t *hdr_pos, *buf_pos;
 168
 169     buf_pos = buf;
 170     buf_pos += 18;
 171
 172     fflags1 = bytestream_get_le16(&buf_pos);
 173     fflags3 = bytestream_get_le32(&buf_pos);
 174     fflags2 = *buf_pos++;
 175     buf_pos += 3;
 176     hdr_height = bytestream_get_le16(&buf_pos);
 177     hdr_width  = bytestream_get_le16(&buf_pos);
 178
 179     if(avcodec_check_dimensions(NULL, hdr_width, hdr_height))
 180         return -1;
 181
 182     chroma_height = ((hdr_height >> 2) + 3) & 0x7ffc;
 183     chroma_width = ((hdr_width >> 2) + 3) & 0x7ffc;
 184     offs1 = bytestream_get_le32(&buf_pos);
 185     offs2 = bytestream_get_le32(&buf_pos);
 186     offs3 = bytestream_get_le32(&buf_pos);
 187     buf_pos += 4;
 188     hdr_pos = buf_pos;
 189     if(fflags3 == 0x80) return 4;
 190
 191     if(fflags1 & 0x200) {
 192         s->cur_frame = s->iv_frame + 1;
 193         s->ref_frame = s->iv_frame;
 194     } else {
 195         s->cur_frame = s->iv_frame;
 196         s->ref_frame = s->iv_frame + 1;
 197     }
 198
 199     buf_pos = buf + 16 + offs1;
 200     offs = bytestream_get_le32(&buf_pos);
 201
 202     iv_Decode_Chunk(s, s->cur_frame->Ybuf, s->ref_frame->Ybuf, hdr_width,
 203                     hdr_height, buf_pos + offs * 2, fflags2, hdr_pos, buf_pos,
 204                     FFMIN(hdr_width, 160));
 205
 206     if (!(s->avctx->flags & CODEC_FLAG_GRAY))
 207     {
 208
 209         buf_pos = buf + 16 + offs2;
 210         offs = bytestream_get_le32(&buf_pos);
 211
 212         iv_Decode_Chunk(s, s->cur_frame->Vbuf, s->ref_frame->Vbuf, chroma_width,
 213                 chroma_height, buf_pos + offs * 2, fflags2, hdr_pos, buf_pos,
 214                 FFMIN(chroma_width, 40));
 215
 216         buf_pos = buf + 16 + offs3;
 217         offs = bytestream_get_le32(&buf_pos);
 218
 219         iv_Decode_Chunk(s, s->cur_frame->Ubuf, s->ref_frame->Ubuf, chroma_width,
 220                 chroma_height, buf_pos + offs * 2, fflags2, hdr_pos, buf_pos,
 221                 FFMIN(chroma_width, 40));
 222
 223     }
 224
 225     return 8;
 226 }
 227
 228 typedef struct {
 229     long xpos;
 230     long ypos;
 231     long width;
 232     long height;
 233     long split_flag;
 234     long split_direction;
 235     long usl7;
 236 } ustr_t;
 237
 238
 239 #define LV1_CHECK(buf1,rle_v3,lv1,lp2)  \
 240     if((lv1 & 0x80) != 0) {             \
 241         if(rle_v3 != 0)                 \
 242             rle_v3 = 0;                 \
 243         else {                          \
 244             rle_v3 = 1;                 \
 245             buf1 -= 2;                  \
 246         }                               \
 247     }                                   \
 248     lp2 = 4;
 249
 250
 251 #define RLE_V3_CHECK(buf1,rle_v1,rle_v2,rle_v3)  \
 252     if(rle_v3 == 0) {                            \
 253         rle_v2 = *buf1;                          \
 254         rle_v1 = 1;                              \
 255         if(rle_v2 > 32) {                        \
 256             rle_v2 -= 32;                        \
 257             rle_v1 = 0;                          \
 258         }                                        \
 259         rle_v3 = 1;                              \
 260     }                                            \
 261     buf1--;
 262
 263
 264 #define LP2_CHECK(buf1,rle_v3,lp2)  \
 265     if(lp2 == 0 && rle_v3 != 0)     \
 266         rle_v3 = 0;                 \
 267     else {                          \
 268         buf1--;                     \
 269         rle_v3 = 1;                 \
 270     }
 271
 272
 273 #define RLE_V2_CHECK(buf1,rle_v2, rle_v3,lp2) \
 274     rle_v2--;                                 \
 275     if(rle_v2 == 0) {                         \
 276         rle_v3 = 0;                           \
 277         buf1 += 2;                            \
 278     }                                         \
 279     lp2 = 4;
 280
 281 static void iv_Decode_Chunk(Indeo3DecodeContext *s,
 282         uint8_t *cur, uint8_t *ref, int width, int height,
 283         const uint8_t *buf1, long fflags2, const uint8_t *hdr,
 284         const uint8_t *buf2, int min_width_160)
 285 {
 286     uint8_t bit_buf;
 287     unsigned long bit_pos, lv, lv1, lv2;
 288     long *width_tbl, width_tbl_arr[10];
 289     const signed char *ref_vectors;
 290     uint8_t *cur_frm_pos, *ref_frm_pos, *cp, *cp2;
 291     uint32_t *cur_lp, *ref_lp;
 292     const uint32_t *correction_lp[2], *correctionloworder_lp[2], *correctionhighorder_lp[2];
 293     uint8_t *correction_type_sp[2];
 294     ustr_t strip_tbl[20], *strip;
 295     int i, j, k, lp1, lp2, flag1, cmd, blks_width, blks_height, region_160_width,
 296         rle_v1, rle_v2, rle_v3;
 297     unsigned short res;
 298
 299     bit_buf = 0;
 300     ref_vectors = NULL;
 301
 302     width_tbl = width_tbl_arr + 1;
 303     i = (width < 0 ? width + 3 : width)/4;
 304     for(j = -1; j < 8; j++)
 305         width_tbl[j] = i * j;
 306
 307     strip = strip_tbl;
 308
 309     for(region_160_width = 0; region_160_width < (width - min_width_160); region_160_width += min_width_160);
 310
 311     strip->ypos = strip->xpos = 0;
 312     for(strip->width = min_width_160; width > strip->width; strip->width *= 2);
 313     strip->height = height;
 314     strip->split_direction = 0;
 315     strip->split_flag = 0;
 316     strip->usl7 = 0;
 317
 318     bit_pos = 0;
 319
 320     rle_v1 = rle_v2 = rle_v3 = 0;
 321
 322     while(strip >= strip_tbl) {
 323         if(bit_pos <= 0) {
 324             bit_pos = 8;
 325             bit_buf = *buf1++;
 326         }
 327
 328         bit_pos -= 2;
 329         cmd = (bit_buf >> bit_pos) & 0x03;
 330
 331         if(cmd == 0) {
 332             strip++;
 333             memcpy(strip, strip-1, sizeof(ustr_t));
 334             strip->split_flag = 1;
 335             strip->split_direction = 0;
 336             strip->height = (strip->height > 8 ? ((strip->height+8)>>4)<<3 : 4);
 337             continue;
 338         } else if(cmd == 1) {
 339             strip++;
 340             memcpy(strip, strip-1, sizeof(ustr_t));
 341             strip->split_flag = 1;
 342             strip->split_direction = 1;
 343             strip->width = (strip->width > 8 ? ((strip->width+8)>>4)<<3 : 4);
 344             continue;
 345         } else if(cmd == 2) {
 346             if(strip->usl7 == 0) {
 347                 strip->usl7 = 1;
 348                 ref_vectors = NULL;
 349                 continue;
 350             }
 351         } else if(cmd == 3) {
 352             if(strip->usl7 == 0) {
 353                 strip->usl7 = 1;
 354                 ref_vectors = (const signed char*)buf2 + (*buf1 * 2);
 355                 buf1++;
 356                 continue;
 357             }
 358         }
 359
 360         cur_frm_pos = cur + width * strip->ypos + strip->xpos;
 361
 362         if((blks_width = strip->width) < 0)
 363             blks_width += 3;
 364         blks_width >>= 2;
 365         blks_height = strip->height;
 366
 367         if(ref_vectors != NULL) {
 368             ref_frm_pos = ref + (ref_vectors[0] + strip->ypos) * width +
 369                 ref_vectors[1] + strip->xpos;
 370         } else
 371             ref_frm_pos = cur_frm_pos - width_tbl[4];
 372
 373         if(cmd == 2) {
 374             if(bit_pos <= 0) {
 375                 bit_pos = 8;
 376                 bit_buf = *buf1++;
 377             }
 378
 379             bit_pos -= 2;
 380             cmd = (bit_buf >> bit_pos) & 0x03;
 381
 382             if(cmd == 0 || ref_vectors != NULL) {
 383                 for(lp1 = 0; lp1 < blks_width; lp1++) {
 384                     for(i = 0, j = 0; i < blks_height; i++, j += width_tbl[1])
 385                         ((uint32_t *)cur_frm_pos)[j] = ((uint32_t *)ref_frm_pos)[j];
 386                     cur_frm_pos += 4;
 387                     ref_frm_pos += 4;
 388                 }
 389             } else if(cmd != 1)
 390                 return;
 391         } else {
 392             k = *buf1 >> 4;
 393             j = *buf1 & 0x0f;
 394             buf1++;
 395             lv = j + fflags2;
 396
 397             if((lv - 8) <= 7 && (k == 0 || k == 3 || k == 10)) {
 398                 cp2 = s->ModPred + ((lv - 8) << 7);
 399                 cp = ref_frm_pos;
 400                 for(i = 0; i < blks_width << 2; i++) {
 401                     int v = *cp >> 1;
 402                     *(cp++) = cp2[v];
 403                 }
 404             }
 405
 406             if(k == 1 || k == 4) {
 407                 lv = (hdr[j] & 0xf) + fflags2;
 408                 correction_type_sp[0] = s->corrector_type + (lv << 8);
 409                 correction_lp[0] = correction + (lv << 8);
 410                 lv = (hdr[j] >> 4) + fflags2;
 411                 correction_lp[1] = correction + (lv << 8);
 412                 correction_type_sp[1] = s->corrector_type + (lv << 8);
 413             } else {
 414                 correctionloworder_lp[0] = correctionloworder_lp[1] = correctionloworder + (lv << 8);
 415                 correctionhighorder_lp[0] = correctionhighorder_lp[1] = correctionhighorder + (lv << 8);
 416                 correction_type_sp[0] = correction_type_sp[1] = s->corrector_type + (lv << 8);
 417                 correction_lp[0] = correction_lp[1] = correction + (lv << 8);
 418             }
 419
 420             switch(k) {
 421             case 1:
 422             case 0:                    /********** CASE 0 **********/
 423                 for( ; blks_height > 0; blks_height -= 4) {
 424                     for(lp1 = 0; lp1 < blks_width; lp1++) {
 425                         for(lp2 = 0; lp2 < 4; ) {
 426                             k = *buf1++;
 427                             cur_lp = ((uint32_t *)cur_frm_pos) + width_tbl[lp2];
 428                             ref_lp = ((uint32_t *)ref_frm_pos) + width_tbl[lp2];
 429
 430                             switch(correction_type_sp[0][k]) {
 431                             case 0:
 432                                 *cur_lp = le2me_32(((le2me_32(*ref_lp) >> 1) + correction_lp[lp2 & 0x01][k]) << 1);
 433                                 lp2++;
 434                                 break;
 435                             case 1:
 436                                 res = ((le2me_16(((unsigned short *)(ref_lp))[0]) >> 1) + correction_lp[lp2 & 0x01][*buf1]) << 1;
 437                                 ((unsigned short *)cur_lp)[0] = le2me_16(res);
 438                                 res = ((le2me_16(((unsigned short *)(ref_lp))[1]) >> 1) + correction_lp[lp2 & 0x01][k]) << 1;
 439                                 ((unsigned short *)cur_lp)[1] = le2me_16(res);
 440                                 buf1++;
 441                                 lp2++;
 442                                 break;
 443                             case 2:
 444                                 if(lp2 == 0) {
 445                                     for(i = 0, j = 0; i < 2; i++, j += width_tbl[1])
 446                                         cur_lp[j] = ref_lp[j];
 447                                     lp2 += 2;
 448                                 }
 449                                 break;
 450                             case 3:
 451                                 if(lp2 < 2) {
 452                                     for(i = 0, j = 0; i < (3 - lp2); i++, j += width_tbl[1])
 453                                         cur_lp[j] = ref_lp[j];
 454                                     lp2 = 3;
 455                                 }
 456                                 break;
 457                             case 8:
 458                                 if(lp2 == 0) {
 459                                     RLE_V3_CHECK(buf1,rle_v1,rle_v2,rle_v3)
 460
 461                                         if(rle_v1 == 1 || ref_vectors != NULL) {
 462                                             for(i = 0, j = 0; i < 4; i++, j += width_tbl[1])
 463                                                 cur_lp[j] = ref_lp[j];
 464                                         }
 465
 466                                     RLE_V2_CHECK(buf1,rle_v2, rle_v3,lp2)
 467                                         break;
 468                                 } else {
 469                                     rle_v1 = 1;
 470                                     rle_v2 = *buf1 - 1;
 471                                 }
 472                             case 5:
 473                                 LP2_CHECK(buf1,rle_v3,lp2)
 474                             case 4:
 475                                 for(i = 0, j = 0; i < (4 - lp2); i++, j += width_tbl[1])
 476                                     cur_lp[j] = ref_lp[j];
 477                                 lp2 = 4;
 478                                 break;
 479
 480                             case 7:
 481                                 if(rle_v3 != 0)
 482                                     rle_v3 = 0;
 483                                 else {
 484                                     buf1--;
 485                                     rle_v3 = 1;
 486                                 }
 487                             case 6:
 488                                 if(ref_vectors != NULL) {
 489                                     for(i = 0, j = 0; i < 4; i++, j += width_tbl[1])
 490                                         cur_lp[j] = ref_lp[j];
 491                                 }
 492                                 lp2 = 4;
 493                                 break;
 494
 495                             case 9:
 496                                 lv1 = *buf1++;
 497                                 lv = (lv1 & 0x7F) << 1;
 498                                 lv += (lv << 8);
 499                                 lv += (lv << 16);
 500                                 for(i = 0, j = 0; i < 4; i++, j += width_tbl[1])
 501                                     cur_lp[j] = lv;
 502
 503                                 LV1_CHECK(buf1,rle_v3,lv1,lp2)
 504                                     break;
 505                             default:
 506                                 return;
 507                             }
 508                         }
 509
 510                         cur_frm_pos += 4;
 511                         ref_frm_pos += 4;
 512                     }
 513
 514                     cur_frm_pos += ((width - blks_width) * 4);
 515                     ref_frm_pos += ((width - blks_width) * 4);
 516                 }
 517                 break;
 518
 519             case 4:
 520             case 3:                    /********** CASE 3 **********/
 521                 if(ref_vectors != NULL)
 522                     return;
 523                 flag1 = 1;
 524
 525                 for( ; blks_height > 0; blks_height -= 8) {
 526                     for(lp1 = 0; lp1 < blks_width; lp1++) {
 527                         for(lp2 = 0; lp2 < 4; ) {
 528                             k = *buf1++;
 529
 530                             cur_lp = ((uint32_t *)cur_frm_pos) + width_tbl[lp2 * 2];
 531                             ref_lp = ((uint32_t *)cur_frm_pos) + width_tbl[(lp2 * 2) - 1];
 532
 533                             switch(correction_type_sp[lp2 & 0x01][k]) {
 534                             case 0:
 535                                 cur_lp[width_tbl[1]] = le2me_32(((le2me_32(*ref_lp) >> 1) + correction_lp[lp2 & 0x01][k]) << 1);
 536                                 if(lp2 > 0 || flag1 == 0 || strip->ypos != 0)
 537                                     cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE;
 538                                 else
 539                                     cur_lp[0] = le2me_32(((le2me_32(*ref_lp) >> 1) + correction_lp[lp2 & 0x01][k]) << 1);
 540                                 lp2++;
 541                                 break;
 542
 543                             case 1:
 544                                 res = ((le2me_16(((unsigned short *)ref_lp)[0]) >> 1) + correction_lp[lp2 & 0x01][*buf1]) << 1;
 545                                 ((unsigned short *)cur_lp)[width_tbl[2]] = le2me_16(res);
 546                                 res = ((le2me_16(((unsigned short *)ref_lp)[1]) >> 1) + correction_lp[lp2 & 0x01][k]) << 1;
 547                                 ((unsigned short *)cur_lp)[width_tbl[2]+1] = le2me_16(res);
 548
 549                                 if(lp2 > 0 || flag1 == 0 || strip->ypos != 0)
 550                                     cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE;
 551                                 else
 552                                     cur_lp[0] = cur_lp[width_tbl[1]];
 553                                 buf1++;
 554                                 lp2++;
 555                                 break;
 556
 557                             case 2:
 558                                 if(lp2 == 0) {
 559                                     for(i = 0, j = 0; i < 4; i++, j += width_tbl[1])
 560                                         cur_lp[j] = *ref_lp;
 561                                     lp2 += 2;
 562                                 }
 563                                 break;
 564
 565                             case 3:
 566                                 if(lp2 < 2) {
 567                                     for(i = 0, j = 0; i < 6 - (lp2 * 2); i++, j += width_tbl[1])
 568                                         cur_lp[j] = *ref_lp;
 569                                     lp2 = 3;
 570                                 }
 571                                 break;
 572
 573                             case 6:
 574                                 lp2 = 4;
 575                                 break;
 576
 577                             case 7:
 578                                 if(rle_v3 != 0)
 579                                     rle_v3 = 0;
 580                                 else {
 581                                     buf1--;
 582                                     rle_v3 = 1;
 583                                 }
 584                                 lp2 = 4;
 585                                 break;
 586
 587                             case 8:
 588                                 if(lp2 == 0) {
 589                                     RLE_V3_CHECK(buf1,rle_v1,rle_v2,rle_v3)
 590
 591                                     if(rle_v1 == 1) {
 592                                         for(i = 0, j = 0; i < 8; i++, j += width_tbl[1])
 593                                             cur_lp[j] = ref_lp[j];
 594                                     }
 595
 596                                     RLE_V2_CHECK(buf1,rle_v2, rle_v3,lp2)
 597                                     break;
 598                                 } else {
 599                                     rle_v2 = (*buf1) - 1;
 600                                     rle_v1 = 1;
 601                                 }
 602                             case 5:
 603                                 LP2_CHECK(buf1,rle_v3,lp2)
 604                             case 4:
 605                                 for(i = 0, j = 0; i < 8 - (lp2 * 2); i++, j += width_tbl[1])
 606                                     cur_lp[j] = *ref_lp;
 607                                 lp2 = 4;
 608                                 break;
 609
 610                             case 9:
 611                                 av_log(s->avctx, AV_LOG_ERROR, "UNTESTED.\n");
 612                                 lv1 = *buf1++;
 613                                 lv = (lv1 & 0x7F) << 1;
 614                                 lv += (lv << 8);
 615                                 lv += (lv << 16);
 616
 617                                 for(i = 0, j = 0; i < 4; i++, j += width_tbl[1])
 618                                     cur_lp[j] = lv;
 619
 620                                 LV1_CHECK(buf1,rle_v3,lv1,lp2)
 621                                 break;
 622
 623                             default:
 624                                 return;
 625                             }
 626                         }
 627
 628                         cur_frm_pos += 4;
 629                     }
 630
 631                     cur_frm_pos += (((width * 2) - blks_width) * 4);
 632                     flag1 = 0;
 633                 }
 634                 break;
 635
 636             case 10:                    /********** CASE 10 **********/
 637                 if(ref_vectors == NULL) {
 638                     flag1 = 1;
 639
 640                     for( ; blks_height > 0; blks_height -= 8) {
 641                         for(lp1 = 0; lp1 < blks_width; lp1 += 2) {
 642                             for(lp2 = 0; lp2 < 4; ) {
 643                                 k = *buf1++;
 644                                 cur_lp = ((uint32_t *)cur_frm_pos) + width_tbl[lp2 * 2];
 645                                 ref_lp = ((uint32_t *)cur_frm_pos) + width_tbl[(lp2 * 2) - 1];
 646                                 lv1 = ref_lp[0];
 647                                 lv2 = ref_lp[1];
 648                                 if(lp2 == 0 && flag1 != 0) {
 649 #ifdef WORDS_BIGENDIAN
 650                                     lv1 = lv1 & 0xFF00FF00;
 651                                     lv1 = (lv1 >> 8) | lv1;
 652                                     lv2 = lv2 & 0xFF00FF00;
 653                                     lv2 = (lv2 >> 8) | lv2;
 654 #else
 655                                     lv1 = lv1 & 0x00FF00FF;
 656                                     lv1 = (lv1 << 8) | lv1;
 657                                     lv2 = lv2 & 0x00FF00FF;
 658                                     lv2 = (lv2 << 8) | lv2;
 659 #endif
 660                                 }
 661
 662                                 switch(correction_type_sp[lp2 & 0x01][k]) {
 663                                 case 0:
 664                                     cur_lp[width_tbl[1]] = le2me_32(((le2me_32(lv1) >> 1) + correctionloworder_lp[lp2 & 0x01][k]) << 1);
 665                                     cur_lp[width_tbl[1]+1] = le2me_32(((le2me_32(lv2) >> 1) + correctionhighorder_lp[lp2 & 0x01][k]) << 1);
 666                                     if(lp2 > 0 || strip->ypos != 0 || flag1 == 0) {
 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                                         cur_lp[0] = cur_lp[width_tbl[1]];
 671                                         cur_lp[1] = cur_lp[width_tbl[1]+1];
 672                                     }
 673                                     lp2++;
 674                                     break;
 675
 676                                 case 1:
 677                                     cur_lp[width_tbl[1]] = le2me_32(((le2me_32(lv1) >> 1) + correctionloworder_lp[lp2 & 0x01][*buf1]) << 1);
 678                                     cur_lp[width_tbl[1]+1] = le2me_32(((le2me_32(lv2) >> 1) + correctionloworder_lp[lp2 & 0x01][k]) << 1);
 679                                     if(lp2 > 0 || strip->ypos != 0 || flag1 == 0) {
 680                                         cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE;
 681                                         cur_lp[1] = ((cur_lp[-width_tbl[1]+1] >> 1) + (cur_lp[width_tbl[1]+1] >> 1)) & 0xFEFEFEFE;
 682                                     } else {
 683                                         cur_lp[0] = cur_lp[width_tbl[1]];
 684                                         cur_lp[1] = cur_lp[width_tbl[1]+1];
 685                                     }
 686                                     buf1++;
 687                                     lp2++;
 688                                     break;
 689
 690                                 case 2:
 691                                     if(lp2 == 0) {
 692                                         if(flag1 != 0) {
 693                                             for(i = 0, j = width_tbl[1]; i < 3; i++, j += width_tbl[1]) {
 694                                                 cur_lp[j] = lv1;
 695                                                 cur_lp[j+1] = lv2;
 696                                             }
 697                                             cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE;
 698                                             cur_lp[1] = ((cur_lp[-width_tbl[1]+1] >> 1) + (cur_lp[width_tbl[1]+1] >> 1)) & 0xFEFEFEFE;
 699                                         } else {
 700                                             for(i = 0, j = 0; i < 4; i++, j += width_tbl[1]) {
 701                                                 cur_lp[j] = lv1;
 702                                                 cur_lp[j+1] = lv2;
 703                                             }
 704                                         }
 705                                         lp2 += 2;
 706                                     }
 707                                     break;
 708
 709                                 case 3:
 710                                     if(lp2 < 2) {
 711                                         if(lp2 == 0 && flag1 != 0) {
 712                                             for(i = 0, j = width_tbl[1]; i < 5; i++, j += width_tbl[1]) {
 713                                                 cur_lp[j] = lv1;
 714                                                 cur_lp[j+1] = lv2;
 715                                             }
 716                                             cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE;
 717                                             cur_lp[1] = ((cur_lp[-width_tbl[1]+1] >> 1) + (cur_lp[width_tbl[1]+1] >> 1)) & 0xFEFEFEFE;
 718                                         } else {
 719                                             for(i = 0, j = 0; i < 6 - (lp2 * 2); i++, j += width_tbl[1]) {
 720                                                 cur_lp[j] = lv1;
 721                                                 cur_lp[j+1] = lv2;
 722                                             }
 723                                         }
 724                                         lp2 = 3;
 725                                     }
 726                                     break;
 727
 728                                 case 8:
 729                                     if(lp2 == 0) {
 730                                         RLE_V3_CHECK(buf1,rle_v1,rle_v2,rle_v3)
 731                                         if(rle_v1 == 1) {
 732                                             if(flag1 != 0) {
 733                                                 for(i = 0, j = width_tbl[1]; i < 7; i++, j += width_tbl[1]) {
 734                                                     cur_lp[j] = lv1;
 735                                                     cur_lp[j+1] = lv2;
 736                                                 }
 737                                                 cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE;
 738                                                 cur_lp[1] = ((cur_lp[-width_tbl[1]+1] >> 1) + (cur_lp[width_tbl[1]+1] >> 1)) & 0xFEFEFEFE;
 739                                             } else {
 740                                                 for(i = 0, j = 0; i < 8; i++, j += width_tbl[1]) {
 741                                                     cur_lp[j] = lv1;
 742                                                     cur_lp[j+1] = lv2;
 743                                                 }
 744                                             }
 745                                         }
 746                                         RLE_V2_CHECK(buf1,rle_v2, rle_v3,lp2)
 747                                         break;
 748                                     } else {
 749                                         rle_v1 = 1;
 750                                         rle_v2 = (*buf1) - 1;
 751                                     }
 752                                 case 5:
 753                                     LP2_CHECK(buf1,rle_v3,lp2)
 754                                 case 4:
 755                                     if(lp2 == 0 && flag1 != 0) {
 756                                         for(i = 0, j = width_tbl[1]; i < 7; i++, j += width_tbl[1]) {
 757                                             cur_lp[j] = lv1;
 758                                             cur_lp[j+1] = lv2;
 759                                         }
 760                                         cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE;
 761                                         cur_lp[1] = ((cur_lp[-width_tbl[1]+1] >> 1) + (cur_lp[width_tbl[1]+1] >> 1)) & 0xFEFEFEFE;
 762                                     } else {
 763                                         for(i = 0, j = 0; i < 8 - (lp2 * 2); i++, j += width_tbl[1]) {
 764                                             cur_lp[j] = lv1;
 765                                             cur_lp[j+1] = lv2;
 766                                         }
 767                                     }
 768                                     lp2 = 4;
 769                                     break;
 770
 771                                 case 6:
 772                                     lp2 = 4;
 773                                     break;
 774
 775                                 case 7:
 776                                     if(lp2 == 0) {
 777                                         if(rle_v3 != 0)
 778                                             rle_v3 = 0;
 779                                         else {
 780                                             buf1--;
 781                                             rle_v3 = 1;
 782                                         }
 783                                         lp2 = 4;
 784                                     }
 785                                     break;
 786
 787                                 case 9:
 788                                     av_log(s->avctx, AV_LOG_ERROR, "UNTESTED.\n");
 789                                     lv1 = *buf1;
 790                                     lv = (lv1 & 0x7F) << 1;
 791                                     lv += (lv << 8);
 792                                     lv += (lv << 16);
 793                                     for(i = 0, j = 0; i < 8; i++, j += width_tbl[1])
 794                                         cur_lp[j] = lv;
 795                                     LV1_CHECK(buf1,rle_v3,lv1,lp2)
 796                                     break;
 797
 798                                 default:
 799                                     return;
 800                                 }
 801                             }
 802
 803                             cur_frm_pos += 8;
 804                         }
 805
 806                         cur_frm_pos += (((width * 2) - blks_width) * 4);
 807                         flag1 = 0;
 808                     }
 809                 } else {
 810                     for( ; blks_height > 0; blks_height -= 8) {
 811                         for(lp1 = 0; lp1 < blks_width; lp1 += 2) {
 812                             for(lp2 = 0; lp2 < 4; ) {
 813                                 k = *buf1++;
 814                                 cur_lp = ((uint32_t *)cur_frm_pos) + width_tbl[lp2 * 2];
 815                                 ref_lp = ((uint32_t *)ref_frm_pos) + width_tbl[lp2 * 2];
 816
 817                                 switch(correction_type_sp[lp2 & 0x01][k]) {
 818                                 case 0:
 819                                     lv1 = correctionloworder_lp[lp2 & 0x01][k];
 820                                     lv2 = correctionhighorder_lp[lp2 & 0x01][k];
 821                                     cur_lp[0] = le2me_32(((le2me_32(ref_lp[0]) >> 1) + lv1) << 1);
 822                                     cur_lp[1] = le2me_32(((le2me_32(ref_lp[1]) >> 1) + lv2) << 1);
 823                                     cur_lp[width_tbl[1]] = le2me_32(((le2me_32(ref_lp[width_tbl[1]]) >> 1) + lv1) << 1);
 824                                     cur_lp[width_tbl[1]+1] = le2me_32(((le2me_32(ref_lp[width_tbl[1]+1]) >> 1) + lv2) << 1);
 825                                     lp2++;
 826                                     break;
 827
 828                                 case 1:
 829                                     lv1 = correctionloworder_lp[lp2 & 0x01][*buf1++];
 830                                     lv2 = correctionloworder_lp[lp2 & 0x01][k];
 831                                     cur_lp[0] = le2me_32(((le2me_32(ref_lp[0]) >> 1) + lv1) << 1);
 832                                     cur_lp[1] = le2me_32(((le2me_32(ref_lp[1]) >> 1) + lv2) << 1);
 833                                     cur_lp[width_tbl[1]] = le2me_32(((le2me_32(ref_lp[width_tbl[1]]) >> 1) + lv1) << 1);
 834                                     cur_lp[width_tbl[1]+1] = le2me_32(((le2me_32(ref_lp[width_tbl[1]+1]) >> 1) + lv2) << 1);
 835                                     lp2++;
 836                                     break;
 837
 838                                 case 2:
 839                                     if(lp2 == 0) {
 840                                         for(i = 0, j = 0; i < 4; i++, j += width_tbl[1]) {
 841                                             cur_lp[j] = ref_lp[j];
 842                                             cur_lp[j+1] = ref_lp[j+1];
 843                                         }
 844                                         lp2 += 2;
 845                                     }
 846                                     break;
 847
 848                                 case 3:
 849                                     if(lp2 < 2) {
 850                                         for(i = 0, j = 0; i < 6 - (lp2 * 2); i++, j += width_tbl[1]) {
 851                                             cur_lp[j] = ref_lp[j];
 852                                             cur_lp[j+1] = ref_lp[j+1];
 853                                         }
 854                                         lp2 = 3;
 855                                     }
 856                                     break;
 857
 858                                 case 8:
 859                                     if(lp2 == 0) {
 860                                         RLE_V3_CHECK(buf1,rle_v1,rle_v2,rle_v3)
 861                                         for(i = 0, j = 0; i < 8; i++, j += width_tbl[1]) {
 862                                             ((uint32_t *)cur_frm_pos)[j] = ((uint32_t *)ref_frm_pos)[j];
 863                                             ((uint32_t *)cur_frm_pos)[j+1] = ((uint32_t *)ref_frm_pos)[j+1];
 864                                         }
 865                                         RLE_V2_CHECK(buf1,rle_v2, rle_v3,lp2)
 866                                         break;
 867                                     } else {
 868                                         rle_v1 = 1;
 869                                         rle_v2 = (*buf1) - 1;
 870                                     }
 871                                 case 5:
 872                                 case 7:
 873                                     LP2_CHECK(buf1,rle_v3,lp2)
 874                                 case 6:
 875                                 case 4:
 876                                     for(i = 0, j = 0; i < 8 - (lp2 * 2); i++, j += width_tbl[1]) {
 877                                         cur_lp[j] = ref_lp[j];
 878                                         cur_lp[j+1] = ref_lp[j+1];
 879                                     }
 880                                     lp2 = 4;
 881                                     break;
 882
 883                                 case 9:
 884                                     av_log(s->avctx, AV_LOG_ERROR, "UNTESTED.\n");
 885                                     lv1 = *buf1;
 886                                     lv = (lv1 & 0x7F) << 1;
 887                                     lv += (lv << 8);
 888                                     lv += (lv << 16);
 889                                     for(i = 0, j = 0; i < 8; i++, j += width_tbl[1])
 890                                         ((uint32_t *)cur_frm_pos)[j] = ((uint32_t *)cur_frm_pos)[j+1] = lv;
 891                                     LV1_CHECK(buf1,rle_v3,lv1,lp2)
 892                                     break;
 893
 894                                 default:
 895                                     return;
 896                                 }
 897                             }
 898
 899                             cur_frm_pos += 8;
 900                             ref_frm_pos += 8;
 901                         }
 902
 903                         cur_frm_pos += (((width * 2) - blks_width) * 4);
 904                         ref_frm_pos += (((width * 2) - blks_width) * 4);
 905                     }
 906                 }
 907                 break;
 908
 909             case 11:                    /********** CASE 11 **********/
 910                 if(ref_vectors == NULL)
 911                     return;
 912
 913                 for( ; blks_height > 0; blks_height -= 8) {
 914                     for(lp1 = 0; lp1 < blks_width; lp1++) {
 915                         for(lp2 = 0; lp2 < 4; ) {
 916                             k = *buf1++;
 917                             cur_lp = ((uint32_t *)cur_frm_pos) + width_tbl[lp2 * 2];
 918                             ref_lp = ((uint32_t *)ref_frm_pos) + width_tbl[lp2 * 2];
 919
 920                             switch(correction_type_sp[lp2 & 0x01][k]) {
 921                             case 0:
 922                                 cur_lp[0] = le2me_32(((le2me_32(*ref_lp) >> 1) + correction_lp[lp2 & 0x01][k]) << 1);
 923                                 cur_lp[width_tbl[1]] = le2me_32(((le2me_32(ref_lp[width_tbl[1]]) >> 1) + correction_lp[lp2 & 0x01][k]) << 1);
 924                                 lp2++;
 925                                 break;
 926
 927                             case 1:
 928                                 lv1 = (unsigned short)(correction_lp[lp2 & 0x01][*buf1++]);
 929                                 lv2 = (unsigned short)(correction_lp[lp2 & 0x01][k]);
 930                                 res = (unsigned short)(((le2me_16(((unsigned short *)ref_lp)[0]) >> 1) + lv1) << 1);
 931                                 ((unsigned short *)cur_lp)[0] = le2me_16(res);
 932                                 res = (unsigned short)(((le2me_16(((unsigned short *)ref_lp)[1]) >> 1) + lv2) << 1);
 933                                 ((unsigned short *)cur_lp)[1] = le2me_16(res);
 934                                 res = (unsigned short)(((le2me_16(((unsigned short *)ref_lp)[width_tbl[2]]) >> 1) + lv1) << 1);
 935                                 ((unsigned short *)cur_lp)[width_tbl[2]] = le2me_16(res);
 936                                 res = (unsigned short)(((le2me_16(((unsigned short *)ref_lp)[width_tbl[2]+1]) >> 1) + lv2) << 1);
 937                                 ((unsigned short *)cur_lp)[width_tbl[2]+1] = le2me_16(res);
 938                                 lp2++;
 939                                 break;
 940
 941                             case 2:
 942                                 if(lp2 == 0) {
 943                                     for(i = 0, j = 0; i < 4; i++, j += width_tbl[1])
 944                                         cur_lp[j] = ref_lp[j];
 945                                     lp2 += 2;
 946                                 }
 947                                 break;
 948
 949                             case 3:
 950                                 if(lp2 < 2) {
 951                                     for(i = 0, j = 0; i < 6 - (lp2 * 2); i++, j += width_tbl[1])
 952                                         cur_lp[j] = ref_lp[j];
 953                                     lp2 = 3;
 954                                 }
 955                                 break;
 956
 957                             case 8:
 958                                 if(lp2 == 0) {
 959                                     RLE_V3_CHECK(buf1,rle_v1,rle_v2,rle_v3)
 960
 961                                     for(i = 0, j = 0; i < 8; i++, j += width_tbl[1])
 962                                         cur_lp[j] = ref_lp[j];
 963
 964                                     RLE_V2_CHECK(buf1,rle_v2, rle_v3,lp2)
 965                                     break;
 966                                 } else {
 967                                     rle_v1 = 1;
 968                                     rle_v2 = (*buf1) - 1;
 969                                 }
 970                             case 5:
 971                             case 7:
 972                                 LP2_CHECK(buf1,rle_v3,lp2)
 973                             case 4:
 974                             case 6:
 975                                 for(i = 0, j = 0; i < 8 - (lp2 * 2); i++, j += width_tbl[1])
 976                                     cur_lp[j] = ref_lp[j];
 977                                 lp2 = 4;
 978                                 break;
 979
 980                             case 9:
 981                                 av_log(s->avctx, AV_LOG_ERROR, "UNTESTED.\n");
 982                                 lv1 = *buf1++;
 983                                 lv = (lv1 & 0x7F) << 1;
 984                                 lv += (lv << 8);
 985                                 lv += (lv << 16);
 986                                 for(i = 0, j = 0; i < 4; i++, j += width_tbl[1])
 987                                     cur_lp[j] = lv;
 988                                 LV1_CHECK(buf1,rle_v3,lv1,lp2)
 989                                 break;
 990
 991                             default:
 992                                 return;
 993                             }
 994                         }
 995
 996                         cur_frm_pos += 4;
 997                         ref_frm_pos += 4;
 998                     }
 999
1000                     cur_frm_pos += (((width * 2) - blks_width) * 4);
1001                     ref_frm_pos += (((width * 2) - blks_width) * 4);
1002                 }
1003                 break;
1004
1005             default:
1006                 return;
1007             }
1008         }
1009
1010         if(strip < strip_tbl)
1011             return;
1012
1013         for( ; strip >= strip_tbl; strip--) {
1014             if(strip->split_flag != 0) {
1015                 strip->split_flag = 0;
1016                 strip->usl7 = (strip-1)->usl7;
1017
1018                 if(strip->split_direction) {
1019                     strip->xpos += strip->width;
1020                     strip->width = (strip-1)->width - strip->width;
1021                     if(region_160_width <= strip->xpos && width < strip->width + strip->xpos)
1022                         strip->width = width - strip->xpos;
1023                 } else {
1024                     strip->ypos += strip->height;
1025                     strip->height = (strip-1)->height - strip->height;
1026                 }
1027                 break;
1028             }
1029         }
1030     }
1031 }
1032
1033 static av_cold int indeo3_decode_init(AVCodecContext *avctx)
1034 {
1035     Indeo3DecodeContext *s = avctx->priv_data;
1036     int ret = 0;
1037
1038     s->avctx = avctx;
1039     s->width = avctx->width;
1040     s->height = avctx->height;
1041     avctx->pix_fmt = PIX_FMT_YUV410P;
1042
1043     if (!(ret = build_modpred(s)))
1044         ret = iv_alloc_frames(s);
1045     if (ret)
1046         iv_free_func(s);
1047
1048     return ret;
1049 }
1050
1051 static int indeo3_decode_frame(AVCodecContext *avctx,
1052                                void *data, int *data_size,
1053                                const uint8_t *buf, int buf_size)
1054 {
1055     Indeo3DecodeContext *s=avctx->priv_data;
1056     uint8_t *src, *dest;
1057     int y;
1058
1059     iv_decode_frame(s, buf, buf_size);
1060
1061     if(s->frame.data[0])
1062         avctx->release_buffer(avctx, &s->frame);
1063
1064     s->frame.reference = 0;
1065     if(avctx->get_buffer(avctx, &s->frame) < 0) {
1066         av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed\n");
1067         return -1;
1068     }
1069
1070     src = s->cur_frame->Ybuf;
1071     dest = s->frame.data[0];
1072     for (y = 0; y < s->height; y++) {
1073         memcpy(dest, src, s->cur_frame->y_w);
1074         src += s->cur_frame->y_w;
1075         dest += s->frame.linesize[0];
1076     }
1077
1078     if (!(s->avctx->flags & CODEC_FLAG_GRAY))
1079     {
1080         src = s->cur_frame->Ubuf;
1081         dest = s->frame.data[1];
1082         for (y = 0; y < s->height / 4; y++) {
1083             memcpy(dest, src, s->cur_frame->uv_w);
1084             src += s->cur_frame->uv_w;
1085             dest += s->frame.linesize[1];
1086         }
1087
1088         src = s->cur_frame->Vbuf;
1089         dest = s->frame.data[2];
1090         for (y = 0; y < s->height / 4; y++) {
1091             memcpy(dest, src, s->cur_frame->uv_w);
1092             src += s->cur_frame->uv_w;
1093             dest += s->frame.linesize[2];
1094         }
1095     }
1096
1097     *data_size=sizeof(AVFrame);
1098     *(AVFrame*)data= s->frame;
1099
1100     return buf_size;
1101 }
1102
1103 static av_cold int indeo3_decode_end(AVCodecContext *avctx)
1104 {
1105     Indeo3DecodeContext *s = avctx->priv_data;
1106
1107     iv_free_func(s);
1108
1109     return 0;
1110 }
1111
1112 AVCodec indeo3_decoder = {
1113     "indeo3",
1114     CODEC_TYPE_VIDEO,
1115     CODEC_ID_INDEO3,
1116     sizeof(Indeo3DecodeContext),
1117     indeo3_decode_init,
1118     NULL,
1119     indeo3_decode_end,
1120     indeo3_decode_frame,
1121     0,
1122     NULL,
1123     .long_name = NULL_IF_CONFIG_SMALL("Intel Indeo 3"),
1124 };