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 library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  18  */
  19
  20 #include <stdio.h>
  21 #include <stdlib.h>
  22 #include <string.h>
  23 #include <unistd.h>
  24
  25 #include "common.h"
  26 #include "avcodec.h"
  27 #include "dsputil.h"
  28 #include "mpegvideo.h"
  29 #include "bswap.h"
  30
  31 #include "indeo3data.h"
  32
  33 typedef struct
  34 {
  35   unsigned char *Ybuf;
  36   unsigned char *Ubuf;
  37   unsigned char *Vbuf;
  38   unsigned char *the_buf;
  39   unsigned int the_buf_size;
  40   unsigned short y_w, y_h;
  41   unsigned short uv_w, uv_h;
  42 } YUVBufs;
  43
  44 typedef struct Indeo3DecodeContext {
  45     AVCodecContext *avctx;
  46     int width, height;
  47     AVFrame frame;
  48
  49     YUVBufs iv_frame[2];
  50     YUVBufs *cur_frame;
  51     YUVBufs *ref_frame;
  52
  53     unsigned char *ModPred;
  54     unsigned short *corrector_type;
  55 } Indeo3DecodeContext;
  56
  57 static int 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 int corrector_type_2[8] = { 9, 7, 6, 8, 5, 4, 3, 2 };
  64
  65 static void build_modpred(Indeo3DecodeContext *s)
  66 {
  67   int i, j;
  68
  69   s->ModPred = (unsigned char *) av_malloc (8 * 128);
  70
  71   for (i=0; i < 128; ++i) {
  72     s->ModPred[i+0*128] = (i > 126) ? 254 : 2*((i + 1) - ((i + 1) % 2));
  73     s->ModPred[i+1*128] = (i == 7)  ?  20 : ((i == 119 || i == 120)
  74                                  ? 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   s->corrector_type = (unsigned short *) av_malloc (24 * 256 * sizeof(unsigned short));
  84
  85   for (i=0; i < 24; ++i) {
  86     for (j=0; j < 256; ++j) {
  87       s->corrector_type[i*256+j] = (j < corrector_type_0[i])
  88                                 ? 1 : ((j < 248 || (i == 16 && j == 248))
  89                                        ? 0 : corrector_type_2[j - 248]);
  90     }
  91   }
  92 }
  93
  94 static void iv_Decode_Chunk(Indeo3DecodeContext *s, unsigned char *cur,
  95   unsigned char *ref, int width, int height, unsigned char *buf1,
  96   long fflags2, unsigned char *hdr,
  97   unsigned char *buf2, int min_width_160);
  98
  99 #define min(a,b) ((a) < (b) ? (a) : (b))
 100
 101 /* ---------------------------------------------------------------------- */
 102 static void iv_alloc_frames(Indeo3DecodeContext *s)
 103 {
 104   int luma_width, luma_height, luma_pixels, chroma_width, chroma_height,
 105     chroma_pixels, bufsize, i;
 106
 107   luma_width = (s->width + 15) & -0x10;
 108   luma_height = (s->height + 15) & -0x10;
 109
 110   s->iv_frame[0].y_w = s->iv_frame[0].y_h =
 111     s->iv_frame[0].the_buf_size = 0;
 112   s->iv_frame[1].y_w = s->iv_frame[1].y_h =
 113     s->iv_frame[1].the_buf_size = 0;
 114   s->iv_frame[1].the_buf = NULL;
 115
 116   chroma_width = luma_width >> 2;
 117   chroma_height = luma_height >> 2;
 118   luma_pixels = luma_width * luma_height;
 119   chroma_pixels = chroma_width * chroma_height;
 120
 121   bufsize = luma_pixels * 2 + luma_width * 3 +
 122     (chroma_pixels + chroma_width) * 4;
 123
 124   if((s->iv_frame[0].the_buf =
 125     (s->iv_frame[0].the_buf_size == 0 ? av_malloc(bufsize) :
 126       av_realloc(s->iv_frame[0].the_buf, bufsize))) == NULL)
 127     return;
 128   s->iv_frame[0].y_w = s->iv_frame[1].y_w = luma_width;
 129   s->iv_frame[0].y_h = s->iv_frame[1].y_h = luma_height;
 130   s->iv_frame[0].uv_w = s->iv_frame[1].uv_w = chroma_width;
 131   s->iv_frame[0].uv_h = s->iv_frame[1].uv_h = chroma_height;
 132   s->iv_frame[0].the_buf_size = bufsize;
 133
 134   s->iv_frame[0].Ybuf = s->iv_frame[0].the_buf + luma_width;
 135   i = luma_pixels + luma_width * 2;
 136   s->iv_frame[1].Ybuf = s->iv_frame[0].the_buf + i;
 137   i += (luma_pixels + luma_width);
 138   s->iv_frame[0].Ubuf = s->iv_frame[0].the_buf + i;
 139   i += (chroma_pixels + chroma_width);
 140   s->iv_frame[1].Ubuf = s->iv_frame[0].the_buf + i;
 141   i += (chroma_pixels + chroma_width);
 142   s->iv_frame[0].Vbuf = s->iv_frame[0].the_buf + i;
 143   i += (chroma_pixels + chroma_width);
 144   s->iv_frame[1].Vbuf = s->iv_frame[0].the_buf + i;
 145
 146   for(i = 1; i <= luma_width; i++)
 147     s->iv_frame[0].Ybuf[-i] = s->iv_frame[1].Ybuf[-i] =
 148       s->iv_frame[0].Ubuf[-i] = 0x80;
 149
 150   for(i = 1; i <= chroma_width; i++) {
 151     s->iv_frame[1].Ubuf[-i] = 0x80;
 152     s->iv_frame[0].Vbuf[-i] = 0x80;
 153     s->iv_frame[1].Vbuf[-i] = 0x80;
 154     s->iv_frame[1].Vbuf[chroma_pixels+i-1] = 0x80;
 155   }
 156 }
 157
 158 /* ---------------------------------------------------------------------- */
 159 static void iv_free_func(Indeo3DecodeContext *s)
 160 {
 161   int i;
 162
 163   for(i = 0 ; i < 2 ; i++) {
 164     if(s->iv_frame[i].the_buf != NULL)
 165       av_free(s->iv_frame[i].the_buf);
 166     s->iv_frame[i].Ybuf = s->iv_frame[i].Ubuf =
 167       s->iv_frame[i].Vbuf = NULL;
 168     s->iv_frame[i].the_buf = NULL;
 169     s->iv_frame[i].the_buf_size = 0;
 170     s->iv_frame[i].y_w = s->iv_frame[i].y_h = 0;
 171     s->iv_frame[i].uv_w = s->iv_frame[i].uv_h = 0;
 172   }
 173
 174   av_free(s->ModPred);
 175   av_free(s->corrector_type);
 176 }
 177
 178 /* ---------------------------------------------------------------------- */
 179 static unsigned long iv_decode_frame(Indeo3DecodeContext *s,
 180                                      unsigned char *buf, int buf_size)
 181 {
 182   unsigned int hdr_width, hdr_height,
 183     chroma_width, chroma_height;
 184   unsigned long fflags1, fflags2, fflags3, offs1, offs2, offs3, offs;
 185   unsigned char *hdr_pos, *buf_pos;
 186
 187   buf_pos = buf;
 188   buf_pos += 18;
 189
 190   fflags1 = le2me_16(*(uint16_t *)buf_pos);
 191   buf_pos += 2;
 192   fflags3 = le2me_32(*(uint32_t *)buf_pos);
 193   buf_pos += 4;
 194   fflags2 = *buf_pos++;
 195   buf_pos += 3;
 196   hdr_height = le2me_16(*(uint16_t *)buf_pos);
 197   buf_pos += 2;
 198   hdr_width = le2me_16(*(uint16_t *)buf_pos);
 199   buf_pos += 2;
 200   chroma_height = ((hdr_height >> 2) + 3) & 0x7ffc;
 201   chroma_width = ((hdr_width >> 2) + 3) & 0x7ffc;
 202   offs1 = le2me_32(*(uint32_t *)buf_pos);
 203   buf_pos += 4;
 204   offs2 = le2me_32(*(uint32_t *)buf_pos);
 205   buf_pos += 4;
 206   offs3 = le2me_32(*(uint32_t *)buf_pos);
 207   buf_pos += 8;
 208   hdr_pos = buf_pos;
 209   if(fflags3 == 0x80) return 4;
 210
 211   if(fflags1 & 0x200) {
 212     s->cur_frame = s->iv_frame + 1;
 213     s->ref_frame = s->iv_frame;
 214   } else {
 215     s->cur_frame = s->iv_frame;
 216     s->ref_frame = s->iv_frame + 1;
 217   }
 218
 219   buf_pos = buf + 16 + offs1;
 220   offs = le2me_32(*(uint32_t *)buf_pos);
 221   buf_pos += 4;
 222
 223   iv_Decode_Chunk(s, s->cur_frame->Ybuf, s->ref_frame->Ybuf, hdr_width,
 224     hdr_height, buf_pos + offs * 2, fflags2, hdr_pos, buf_pos,
 225     min(hdr_width, 160));
 226
 227   buf_pos = buf + 16 + offs2;
 228   offs = le2me_32(*(uint32_t *)buf_pos);
 229   buf_pos += 4;
 230
 231   iv_Decode_Chunk(s, s->cur_frame->Vbuf, s->ref_frame->Vbuf, chroma_width,
 232     chroma_height, buf_pos + offs * 2, fflags2, hdr_pos, buf_pos,
 233     min(chroma_width, 40));
 234
 235   buf_pos = buf + 16 + offs3;
 236   offs = le2me_32(*(uint32_t *)buf_pos);
 237   buf_pos += 4;
 238
 239   iv_Decode_Chunk(s, s->cur_frame->Ubuf, s->ref_frame->Ubuf, chroma_width,
 240     chroma_height, buf_pos + offs * 2, fflags2, hdr_pos, buf_pos,
 241     min(chroma_width, 40));
 242
 243   return 8;
 244 }
 245
 246 typedef struct {
 247   long xpos;
 248   long ypos;
 249   long width;
 250   long height;
 251   long split_flag;
 252   long split_direction;
 253   long usl7;
 254 } ustr_t;
 255
 256 /* ---------------------------------------------------------------------- */
 257
 258 static void iv_Decode_Chunk(Indeo3DecodeContext *s,
 259   unsigned char *cur, unsigned char *ref, int width, int height,
 260   unsigned char *buf1, long fflags2, unsigned char *hdr,
 261   unsigned char *buf2, int min_width_160)
 262 {
 263   unsigned char bit_buf;
 264   unsigned long bit_pos, lv, lv1, lv2;
 265   long *width_tbl, width_tbl_arr[10];
 266   char *ref_vectors;
 267   unsigned char *cur_frm_pos, *ref_frm_pos, *cp, *cp2;
 268   unsigned long *cur_lp, *ref_lp, *correction_lp[2], *correctionloworder_lp[2],
 269     *correctionhighorder_lp[2];
 270   unsigned short *correction_type_sp[2];
 271   ustr_t xustr[20], *ptr_ustr;
 272   int i, j, k, lp1, lp2, flag1, cmd, blks_width, blks_height, region_160_width,
 273     rle_v1, rle_v2, rle_v3;
 274
 275   bit_buf = 0;
 276   ref_vectors = NULL;
 277
 278   width_tbl = width_tbl_arr + 1;
 279   i = (width < 0 ? width + 3 : width)/4;
 280   for(j = -1; j < 8; j++)
 281     width_tbl[j] = i * j;
 282
 283   ptr_ustr = xustr;
 284
 285   for(region_160_width = 0; region_160_width < (width - min_width_160); region_160_width += min_width_160);
 286
 287   ptr_ustr->ypos = ptr_ustr->xpos = 0;
 288   for(ptr_ustr->width = min_width_160; width > ptr_ustr->width; ptr_ustr->width *= 2);
 289   ptr_ustr->height = height;
 290   ptr_ustr->split_direction = 0;
 291   ptr_ustr->split_flag = 0;
 292   ptr_ustr->usl7 = 0;
 293
 294   bit_pos = 0;
 295
 296   rle_v1 = rle_v2 = rle_v3 = 0;
 297
 298   while(ptr_ustr >= xustr) {
 299     if(bit_pos <= 0) {
 300       bit_pos = 8;
 301       bit_buf = *buf1++;
 302     }
 303
 304     bit_pos -= 2;
 305     cmd = (bit_buf >> bit_pos) & 0x03;
 306
 307     if(cmd == 0) {
 308       ptr_ustr++;
 309       memcpy(ptr_ustr, ptr_ustr-1, sizeof(ustr_t));
 310       ptr_ustr->split_flag = 1;
 311       ptr_ustr->split_direction = 0;
 312       ptr_ustr->height = (ptr_ustr->height > 8 ? ((ptr_ustr->height+8)>>4)<<3 : 4);
 313       continue;
 314     } else if(cmd == 1) {
 315       ptr_ustr++;
 316       memcpy(ptr_ustr, ptr_ustr-1, sizeof(ustr_t));
 317       ptr_ustr->split_flag = 1;
 318       ptr_ustr->split_direction = 1;
 319       ptr_ustr->width = (ptr_ustr->width > 8 ? ((ptr_ustr->width+8)>>4)<<3 : 4);
 320       continue;
 321     } else if(cmd == 2) {
 322       if(ptr_ustr->usl7 == 0) {
 323         ptr_ustr->usl7 = 1;
 324         ref_vectors = NULL;
 325         continue;
 326       }
 327     } else if(cmd == 3) {
 328       if(ptr_ustr->usl7 == 0) {
 329         ptr_ustr->usl7 = 1;
 330         ref_vectors = buf2 + (*buf1 * 2);
 331         buf1++;
 332         continue;
 333       }
 334     }
 335
 336     cur_frm_pos = cur + width * ptr_ustr->ypos + ptr_ustr->xpos;
 337
 338     if((blks_width = ptr_ustr->width) < 0)
 339       blks_width += 3;
 340     blks_width >>= 2;
 341     blks_height = ptr_ustr->height;
 342
 343     if(ref_vectors != NULL) {
 344       ref_frm_pos = ref + (ref_vectors[0] + ptr_ustr->ypos) * width +
 345         ref_vectors[1] + ptr_ustr->xpos;
 346     } else
 347       ref_frm_pos = cur_frm_pos - width_tbl[4];
 348
 349     if(cmd == 2) {
 350       if(bit_pos <= 0) {
 351         bit_pos = 8;
 352         bit_buf = *buf1++;
 353       }
 354
 355       bit_pos -= 2;
 356       cmd = (bit_buf >> bit_pos) & 0x03;
 357
 358       if(cmd == 0 || ref_vectors != NULL) {
 359         for(lp1 = 0; lp1 < blks_width; lp1++) {
 360           for(i = 0, j = 0; i < blks_height; i++, j += width_tbl[1])
 361             ((unsigned long *)cur_frm_pos)[j] = ((unsigned long *)ref_frm_pos)[j];
 362           cur_frm_pos += 4;
 363           ref_frm_pos += 4;
 364         }
 365       } else if(cmd != 1)
 366         return;
 367     } else {
 368       k = *buf1 >> 4;
 369       j = *buf1 & 0x0f;
 370       buf1++;
 371       lv = j + fflags2;
 372
 373       if((lv - 8) <= 7 && (k == 0 || k == 3 || k == 10)) {
 374         cp2 = s->ModPred + ((lv - 8) << 7);
 375         cp = ref_frm_pos;
 376         for(i = 0; i < blks_width << 2; i++) { *(cp++) = cp2[*cp >> 1]; }
 377       }
 378
 379       if(k == 1 || k == 4) {
 380         lv = (hdr[j] & 0xf) + fflags2;
 381         correction_type_sp[0] = s->corrector_type + (lv << 8);
 382         correction_lp[0] = correction + (lv << 8);
 383         lv = (hdr[j] >> 4) + fflags2;
 384         correction_lp[1] = correction + (lv << 8);
 385         correction_type_sp[1] = s->corrector_type + (lv << 8);
 386       } else {
 387         correctionloworder_lp[0] = correctionloworder_lp[1] = correctionloworder + (lv << 8);
 388         correctionhighorder_lp[0] = correctionhighorder_lp[1] = correctionhighorder + (lv << 8);
 389         correction_type_sp[0] = correction_type_sp[1] = s->corrector_type + (lv << 8);
 390         correction_lp[0] = correction_lp[1] = correction + (lv << 8);
 391       }
 392
 393       switch(k) {
 394         case 1:
 395         case 0:                    /********** CASE 0 **********/
 396           for( ; blks_height > 0; blks_height -= 4) {
 397             for(lp1 = 0; lp1 < blks_width; lp1++) {
 398               for(lp2 = 0; lp2 < 4; ) {
 399                 k = *buf1++;
 400                 cur_lp = ((unsigned long *)cur_frm_pos) + width_tbl[lp2];
 401                 ref_lp = ((unsigned long *)ref_frm_pos) + width_tbl[lp2];
 402
 403                 switch(correction_type_sp[0][k]) {
 404                   case 0:
 405                     *cur_lp = ((*ref_lp >> 1) + correction_lp[lp2 & 0x01][k]) << 1;
 406                     lp2++;
 407                     break;
 408                   case 1:
 409                     ((unsigned short *)cur_lp)[0] = ((((unsigned short *)(ref_lp))[0] >> 1)
 410                       + correction_lp[lp2 & 0x01][*buf1++]) << 1;
 411                     ((unsigned short *)cur_lp)[1] = ((((unsigned short *)(ref_lp))[1] >> 1)
 412                       + correction_lp[lp2 & 0x01][k]) << 1;
 413                     lp2++;
 414                     break;
 415                   case 2:
 416                     if(lp2 == 0) {
 417                       for(i = 0, j = 0; i < 2; i++, j += width_tbl[1])
 418                         cur_lp[j] = ref_lp[j];
 419                       lp2 += 2;
 420                     }
 421                     break;
 422                   case 3:
 423                     if(lp2 < 2) {
 424                       for(i = 0, j = 0; i < (3 - lp2); i++, j += width_tbl[1])
 425                         cur_lp[j] = ref_lp[j];
 426                       lp2 = 3;
 427                     }
 428                     break;
 429                   case 8:
 430                     if(lp2 == 0) {
 431                       if(rle_v3 == 0) {
 432                         rle_v2 = *buf1;
 433                         rle_v1 = 1;
 434                         if(rle_v2 > 32) {
 435                           rle_v2 -= 32;
 436                           rle_v1 = 0;
 437                         }
 438                         rle_v3 = 1;
 439                       }
 440                       buf1--;
 441
 442                       if(rle_v1 == 1 || ref_vectors != NULL) {
 443                         for(i = 0, j = 0; i < 4; i++, j += width_tbl[1])
 444                           cur_lp[j] = ref_lp[j];
 445                       }
 446
 447                       rle_v2--;
 448                       if(rle_v2 == 0) {
 449                         rle_v3 = 0;
 450                         buf1 += 2;
 451                       }
 452                       lp2 = 4;
 453                       break;
 454                     } else {
 455                       rle_v1 = 1;
 456                       rle_v2 = *buf1 - 1;
 457                     }
 458                   case 5:
 459                     if(lp2 == 0 && rle_v3 != 0)
 460                       rle_v3 = 0;
 461                     else {
 462                       buf1--;
 463                       rle_v3 = 1;
 464                     }
 465                   case 4:
 466                     for(i = 0, j = 0; i < (4 - lp2); i++, j += width_tbl[1])
 467                       cur_lp[j] = ref_lp[j];
 468                     lp2 = 4;
 469                     break;
 470
 471                   case 7:
 472                     if(rle_v3 != 0)
 473                       rle_v3 = 0;
 474                     else {
 475                       buf1--;
 476                       rle_v3 = 1;
 477                     }
 478                   case 6:
 479                     if(ref_vectors != NULL) {
 480                       for(i = 0, j = 0; i < 4; i++, j += width_tbl[1])
 481                         cur_lp[j] = ref_lp[j];
 482                     }
 483                     lp2 = 4;
 484                     break;
 485
 486                   case 9:
 487                     lv1 = *buf1++;
 488                     lv = (lv1 & 0x7F) << 1;
 489                     lv += (lv << 8);
 490                     lv += (lv << 16);
 491                     for(i = 0, j = 0; i < 4; i++, j += width_tbl[1])
 492                       cur_lp[j] = lv;
 493
 494                     if((lv1 & 0x80) != 0) {
 495                       if(rle_v3 != 0)
 496                         rle_v3 = 0;
 497                       else {
 498                         rle_v3 = 1;
 499                         buf1 -= 2;
 500                       }
 501                     }
 502                     lp2 = 4;
 503                     break;
 504                   default:
 505                     return;
 506                 }
 507               }
 508
 509               cur_frm_pos += 4;
 510               ref_frm_pos += 4;
 511             }
 512
 513             cur_frm_pos += ((width - blks_width) * 4);
 514             ref_frm_pos += ((width - blks_width) * 4);
 515           }
 516           break;
 517
 518         case 4:
 519         case 3:                    /********** CASE 3 **********/
 520           if(ref_vectors != NULL)
 521             return;
 522           flag1 = 1;
 523
 524           for( ; blks_height > 0; blks_height -= 8) {
 525             for(lp1 = 0; lp1 < blks_width; lp1++) {
 526               for(lp2 = 0; lp2 < 4; ) {
 527                 k = *buf1++;
 528
 529                 cur_lp = ((unsigned long *)cur_frm_pos) + width_tbl[lp2 * 2];
 530                 ref_lp = ((unsigned long *)cur_frm_pos) + width_tbl[(lp2 * 2) - 1];
 531
 532                 switch(correction_type_sp[lp2 & 0x01][k]) {
 533                   case 0:
 534                     cur_lp[width_tbl[1]] = ((*ref_lp >> 1) + correction_lp[lp2 & 0x01][k]) << 1;
 535                     if(lp2 > 0 || flag1 == 0 || ptr_ustr->ypos != 0)
 536                       cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE;
 537                     else
 538                       cur_lp[0] = ((*ref_lp >> 1) + correction_lp[lp2 & 0x01][k]) << 1;
 539                     lp2++;
 540                     break;
 541
 542                   case 1:
 543                     ((unsigned short *)cur_lp)[width_tbl[2]] =
 544                       ((((unsigned short *)ref_lp)[0] >> 1) + correction_lp[lp2 & 0x01][*buf1++]) << 1;
 545                     ((unsigned short *)cur_lp)[width_tbl[2]+1] =
 546                       ((((unsigned short *)ref_lp)[1] >> 1) + correction_lp[lp2 & 0x01][k]) << 1;
 547                     if(lp2 > 0 || flag1 == 0 || ptr_ustr->ypos != 0)
 548                       cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE;
 549                     else
 550                       cur_lp[0] = cur_lp[width_tbl[1]];
 551                     lp2++;
 552                     break;
 553
 554                   case 2:
 555                     if(lp2 == 0) {
 556                       for(i = 0, j = 0; i < 4; i++, j += width_tbl[1])
 557                         cur_lp[j] = *ref_lp;
 558                       lp2 += 2;
 559                     }
 560                     break;
 561
 562                   case 3:
 563                     if(lp2 < 2) {
 564                       for(i = 0, j = 0; i < 6 - (lp2 * 2); i++, j += width_tbl[1])
 565                         cur_lp[j] = *ref_lp;
 566                       lp2 = 3;
 567                     }
 568                     break;
 569
 570                   case 6:
 571                     lp2 = 4;
 572                     break;
 573
 574                   case 7:
 575                     if(rle_v3 != 0)
 576                       rle_v3 = 0;
 577                     else {
 578                       buf1--;
 579                       rle_v3 = 1;
 580                     }
 581                     lp2 = 4;
 582                     break;
 583
 584                   case 8:
 585                     if(lp2 == 0) {
 586                       if(rle_v3 == 0) {
 587                         rle_v2 = *buf1;
 588                         rle_v1 = 1;
 589                         if(rle_v2 > 32) {
 590                           rle_v2 -= 32;
 591                           rle_v1 = 0;
 592                         }
 593                         rle_v3 = 1;
 594                       }
 595                       buf1--;
 596
 597                       if(rle_v1 == 1) {
 598                         for(i = 0, j = 0; i < 8; i++, j += width_tbl[1])
 599                           cur_lp[j] = ref_lp[j];
 600                       }
 601
 602                       rle_v2--;
 603                       if(rle_v2 == 0) {
 604                         rle_v3 = 0;
 605                         buf1 += 2;
 606                       }
 607                       lp2 = 4;
 608                       break;
 609                     } else {
 610                       rle_v2 = (*buf1) - 1;
 611                       rle_v1 = 1;
 612                     }
 613                   case 5:
 614                     if(lp2 == 0 && rle_v3 != 0)
 615                       rle_v3 = 0;
 616                     else {
 617                       buf1--;
 618                       rle_v3 = 1;
 619                     }
 620                   case 4:
 621                     for(i = 0, j = 0; i < 8 - (lp2 * 2); i++, j += width_tbl[1])
 622                       cur_lp[j] = *ref_lp;
 623                     lp2 = 4;
 624                     break;
 625
 626                   case 9:
 627                     fprintf(stderr, "UNTESTED.\n");
 628                     lv1 = *buf1++;
 629                     lv = (lv1 & 0x7F) << 1;
 630                     lv += (lv << 8);
 631                     lv += (lv << 16);
 632
 633                     for(i = 0, j = 0; i < 4; i++, j += width_tbl[1])
 634                       cur_lp[j] = lv;
 635
 636                     if((lv1 & 0x80) != 0) {
 637                       if(rle_v3 != 0)
 638                         rle_v3 = 0;
 639                       else {
 640                         rle_v3 = 1;
 641                         buf1 -= 2;
 642                       }
 643                     }
 644                     lp2 = 4;
 645                     break;
 646
 647                   default:
 648                     return;
 649                 }
 650               }
 651
 652               cur_frm_pos += 4;
 653             }
 654
 655             cur_frm_pos += (((width * 2) - blks_width) * 4);
 656             flag1 = 0;
 657           }
 658           break;
 659
 660         case 10:                    /********** CASE 10 **********/
 661           if(ref_vectors == NULL) {
 662             flag1 = 1;
 663
 664             for( ; blks_height > 0; blks_height -= 8) {
 665               for(lp1 = 0; lp1 < blks_width; lp1 += 2) {
 666                 for(lp2 = 0; lp2 < 4; ) {
 667                   k = *buf1++;
 668                   cur_lp = ((unsigned long *)cur_frm_pos) + width_tbl[lp2 * 2];
 669                   ref_lp = ((unsigned long *)cur_frm_pos) + width_tbl[(lp2 * 2) - 1];
 670                   lv1 = ref_lp[0];
 671                   lv2 = ref_lp[1];
 672                   if(lp2 == 0 && flag1 != 0) {
 673                     lv1 = lv1 & 0x00FF00FF;
 674                     lv1 = (lv1 << 8) | lv1;
 675                     lv2 = lv2 & 0x00FF00FF;
 676                     lv2 = (lv2 << 8) | lv2;
 677                   }
 678
 679                   switch(correction_type_sp[lp2 & 0x01][k]) {
 680                     case 0:
 681                       cur_lp[width_tbl[1]] = ((lv1 >> 1) + correctionloworder_lp[lp2 & 0x01][k]) << 1;
 682                       cur_lp[width_tbl[1]+1] = ((lv2 >> 1) + correctionhighorder_lp[lp2 & 0x01][k]) << 1;
 683                       if(lp2 > 0 || ptr_ustr->ypos != 0 || flag1 == 0) {
 684                         cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE;
 685                         cur_lp[1] = ((cur_lp[-width_tbl[1]+1] >> 1) + (cur_lp[width_tbl[1]+1] >> 1)) & 0xFEFEFEFE;
 686                       } else {
 687                         cur_lp[0] = cur_lp[width_tbl[1]];
 688                         cur_lp[1] = cur_lp[width_tbl[1]+1];
 689                       }
 690                       lp2++;
 691                       break;
 692
 693                     case 1:
 694                       cur_lp[width_tbl[1]] = ((lv1 >> 1) + correctionloworder_lp[lp2 & 0x01][*buf1++]) << 1;
 695                       cur_lp[width_tbl[1]+1] = ((lv2 >> 1) + correctionloworder_lp[lp2 & 0x01][k]) << 1;
 696                       if(lp2 > 0 || ptr_ustr->ypos != 0 || flag1 == 0) {
 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                         cur_lp[0] = cur_lp[width_tbl[1]];
 701                         cur_lp[1] = cur_lp[width_tbl[1]+1];
 702                       }
 703                       lp2++;
 704                       break;
 705
 706                     case 2:
 707                       if(lp2 == 0) {
 708                         if(flag1 != 0) {
 709                           for(i = 0, j = width_tbl[1]; i < 3; i++, j += width_tbl[1]) {
 710                             cur_lp[j] = lv1;
 711                             cur_lp[j+1] = lv2;
 712                           }
 713                           cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE;
 714                           cur_lp[1] = ((cur_lp[-width_tbl[1]+1] >> 1) + (cur_lp[width_tbl[1]+1] >> 1)) & 0xFEFEFEFE;
 715                         } else {
 716                           for(i = 0, j = 0; i < 4; i++, j += width_tbl[1]) {
 717                             cur_lp[j] = lv1;
 718                             cur_lp[j+1] = lv2;
 719                           }
 720                         }
 721                         lp2 += 2;
 722                       }
 723                       break;
 724
 725                     case 3:
 726                       if(lp2 < 2) {
 727                         if(lp2 == 0 && flag1 != 0) {
 728                           for(i = 0, j = width_tbl[1]; i < 5; i++, j += width_tbl[1]) {
 729                             cur_lp[j] = lv1;
 730                             cur_lp[j+1] = lv2;
 731                           }
 732                           cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE;
 733                           cur_lp[1] = ((cur_lp[-width_tbl[1]+1] >> 1) + (cur_lp[width_tbl[1]+1] >> 1)) & 0xFEFEFEFE;
 734                         } else {
 735                           for(i = 0, j = 0; i < 6 - (lp2 * 2); i++, j += width_tbl[1]) {
 736                             cur_lp[j] = lv1;
 737                             cur_lp[j+1] = lv2;
 738                           }
 739                         }
 740                         lp2 = 3;
 741                       }
 742                       break;
 743
 744                     case 8:
 745                       if(lp2 == 0) {
 746                         if(rle_v3 == 0) {
 747                           rle_v2 = *buf1;
 748                           rle_v1 = 1;
 749                           if(rle_v2 > 32) {
 750                             rle_v2 -= 32;
 751                             rle_v1 = 0;
 752                           }
 753                           rle_v3 = 1;
 754                         }
 755                         buf1--;
 756                         if(rle_v1 == 1) {
 757                           if(flag1 != 0) {
 758                             for(i = 0, j = width_tbl[1]; i < 7; i++, j += width_tbl[1]) {
 759                               cur_lp[j] = lv1;
 760                               cur_lp[j+1] = lv2;
 761                             }
 762                             cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE;
 763                             cur_lp[1] = ((cur_lp[-width_tbl[1]+1] >> 1) + (cur_lp[width_tbl[1]+1] >> 1)) & 0xFEFEFEFE;
 764                           } else {
 765                             for(i = 0, j = 0; i < 8; i++, j += width_tbl[1]) {
 766                               cur_lp[j] = lv1;
 767                               cur_lp[j+1] = lv2;
 768                             }
 769                           }
 770                         }
 771                         rle_v2--;
 772                         if(rle_v2 == 0) {
 773                           rle_v3 = 0;
 774                           buf1 += 2;
 775                         }
 776                         lp2 = 4;
 777                         break;
 778                       } else {
 779                         rle_v1 = 1;
 780                         rle_v2 = (*buf1) - 1;
 781                       }
 782                     case 5:
 783                       if(lp2 == 0 && rle_v3 != 0)
 784                         rle_v3 = 0;
 785                       else {
 786                         buf1--;
 787                         rle_v3 = 1;
 788                       }
 789                     case 4:
 790                       if(lp2 == 0 && flag1 != 0) {
 791                         for(i = 0, j = width_tbl[1]; i < 7; i++, j += width_tbl[1]) {
 792                           cur_lp[j] = lv1;
 793                           cur_lp[j+1] = lv2;
 794                         }
 795                         cur_lp[0] = ((cur_lp[-width_tbl[1]] >> 1) + (cur_lp[width_tbl[1]] >> 1)) & 0xFEFEFEFE;
 796                         cur_lp[1] = ((cur_lp[-width_tbl[1]+1] >> 1) + (cur_lp[width_tbl[1]+1] >> 1)) & 0xFEFEFEFE;
 797                       } else {
 798                         for(i = 0, j = 0; i < 8 - (lp2 * 2); i++, j += width_tbl[1]) {
 799                           cur_lp[j] = lv1;
 800                           cur_lp[j+1] = lv2;
 801                         }
 802                       }
 803                       lp2 = 4;
 804                       break;
 805
 806                     case 6:
 807                       lp2 = 4;
 808                       break;
 809
 810                     case 7:
 811                       if(lp2 == 0) {
 812                         if(rle_v3 != 0)
 813                           rle_v3 = 0;
 814                         else {
 815                           buf1--;
 816                           rle_v3 = 1;
 817                         }
 818                         lp2 = 4;
 819                       }
 820                       break;
 821
 822                     case 9:
 823                       fprintf(stderr, "UNTESTED.\n");
 824                       lv1 = *buf1;
 825                       lv = (lv1 & 0x7F) << 1;
 826                       lv += (lv << 8);
 827                       lv += (lv << 16);
 828                       for(i = 0, j = 0; i < 8; i++, j += width_tbl[1])
 829                         cur_lp[j] = lv;
 830                       if((lv1 & 0x80) != 0) {
 831                         if(rle_v3 != 0)
 832                           rle_v3 = 0;
 833                         else {
 834                           rle_v3 = 1;
 835                           buf1 -= 2;
 836                         }
 837                       }
 838                       lp2 = 4;
 839                       break;
 840
 841                     default:
 842                       return;
 843                   }
 844                 }
 845
 846                 cur_frm_pos += 8;
 847               }
 848
 849               cur_frm_pos += (((width * 2) - blks_width) * 4);
 850               flag1 = 0;
 851             }
 852           } else {
 853             for( ; blks_height > 0; blks_height -= 8) {
 854               for(lp1 = 0; lp1 < blks_width; lp1 += 2) {
 855                 for(lp2 = 0; lp2 < 4; ) {
 856                   k = *buf1++;
 857                   cur_lp = ((unsigned long *)cur_frm_pos) + width_tbl[lp2 * 2];
 858                   ref_lp = ((unsigned long *)ref_frm_pos) + width_tbl[lp2 * 2];
 859
 860                   switch(correction_type_sp[lp2 & 0x01][k]) {
 861                     case 0:
 862                       lv1 = correctionloworder_lp[lp2 & 0x01][k];
 863                       lv2 = correctionhighorder_lp[lp2 & 0x01][k];
 864                       cur_lp[0] = ((ref_lp[0] >> 1) + lv1) << 1;
 865                       cur_lp[1] = ((ref_lp[1] >> 1) + lv2) << 1;
 866                       cur_lp[width_tbl[1]] = ((ref_lp[width_tbl[1]] >> 1) + lv1) << 1;
 867                       cur_lp[width_tbl[1]+1] = ((ref_lp[width_tbl[1]+1] >> 1) + lv2) << 1;
 868                       lp2++;
 869                       break;
 870
 871                     case 1:
 872                       lv1 = correctionloworder_lp[lp2 & 0x01][*buf1++];
 873                       lv2 = correctionloworder_lp[lp2 & 0x01][k];
 874                       cur_lp[0] = ((ref_lp[0] >> 1) + lv1) << 1;
 875                       cur_lp[1] = ((ref_lp[1] >> 1) + lv2) << 1;
 876                       cur_lp[width_tbl[1]] = ((ref_lp[width_tbl[1]] >> 1) + lv1) << 1;
 877                       cur_lp[width_tbl[1]+1] = ((ref_lp[width_tbl[1]+1] >> 1) + lv2) << 1;
 878                       lp2++;
 879                       break;
 880
 881                     case 2:
 882                       if(lp2 == 0) {
 883                         for(i = 0, j = 0; i < 4; i++, j += width_tbl[1]) {
 884                           cur_lp[j] = ref_lp[j];
 885                           cur_lp[j+1] = ref_lp[j+1];
 886                         }
 887                         lp2 += 2;
 888                       }
 889                       break;
 890
 891                     case 3:
 892                       if(lp2 < 2) {
 893                         for(i = 0, j = 0; i < 6 - (lp2 * 2); i++, j += width_tbl[1]) {
 894                           cur_lp[j] = ref_lp[j];
 895                           cur_lp[j+1] = ref_lp[j+1];
 896                         }
 897                         lp2 = 3;
 898                       }
 899                       break;
 900
 901                     case 8:
 902                       if(lp2 == 0) {
 903                         if(rle_v3 == 0) {
 904                           rle_v2 = *buf1;
 905                           rle_v1 = 1;
 906                           if(rle_v2 > 32) {
 907                             rle_v2 -= 32;
 908                             rle_v1 = 0;
 909                           }
 910                           rle_v3 = 1;
 911                         }
 912                         buf1--;
 913                         for(i = 0, j = 0; i < 8; i++, j += width_tbl[1]) {
 914                           ((unsigned long *)cur_frm_pos)[j] = ((unsigned long *)ref_frm_pos)[j];
 915                           ((unsigned long *)cur_frm_pos)[j+1] = ((unsigned long *)ref_frm_pos)[j+1];
 916                         }
 917                         rle_v2--;
 918                         if(rle_v2 == 0) {
 919                           rle_v3 = 0;
 920                           buf1 += 2;
 921                         }
 922                         lp2 = 4;
 923                         break;
 924                       } else {
 925                         rle_v1 = 1;
 926                         rle_v2 = (*buf1) - 1;
 927                       }
 928                     case 5:
 929                     case 7:
 930                       if(lp2 == 0 && rle_v3 != 0)
 931                         rle_v3 = 0;
 932                       else {
 933                         buf1--;
 934                         rle_v3 = 1;
 935                       }
 936                     case 6:
 937                     case 4:
 938                       for(i = 0, j = 0; i < 8 - (lp2 * 2); i++, j += width_tbl[1]) {
 939                         cur_lp[j] = ref_lp[j];
 940                         cur_lp[j+1] = ref_lp[j+1];
 941                       }
 942                       lp2 = 4;
 943                       break;
 944
 945                     case 9:
 946                       fprintf(stderr, "UNTESTED.\n");
 947                       lv1 = *buf1;
 948                       lv = (lv1 & 0x7F) << 1;
 949                       lv += (lv << 8);
 950                       lv += (lv << 16);
 951                       for(i = 0, j = 0; i < 8; i++, j += width_tbl[1])
 952                         ((unsigned long *)cur_frm_pos)[j] = ((unsigned long *)cur_frm_pos)[j+1] = lv;
 953                       if((lv1 & 0x80) != 0) {
 954                         if(rle_v3 != 0)
 955                           rle_v3 = 0;
 956                         else {
 957                           rle_v3 = 1;
 958                           buf1 -= 2;
 959                         }
 960                       }
 961                       lp2 = 4;
 962                       break;
 963
 964                     default:
 965                       return;
 966                   }
 967                 }
 968
 969                 cur_frm_pos += 8;
 970                 ref_frm_pos += 8;
 971               }
 972
 973               cur_frm_pos += (((width * 2) - blks_width) * 4);
 974               ref_frm_pos += (((width * 2) - blks_width) * 4);
 975             }
 976           }
 977           break;
 978
 979         case 11:                    /********** CASE 11 **********/
 980           if(ref_vectors == NULL)
 981             return;
 982
 983           for( ; blks_height > 0; blks_height -= 8) {
 984             for(lp1 = 0; lp1 < blks_width; lp1++) {
 985               for(lp2 = 0; lp2 < 4; ) {
 986                 k = *buf1++;
 987                 cur_lp = ((unsigned long *)cur_frm_pos) + width_tbl[lp2 * 2];
 988                 ref_lp = ((unsigned long *)ref_frm_pos) + width_tbl[lp2 * 2];
 989
 990                 switch(correction_type_sp[lp2 & 0x01][k]) {
 991                   case 0:
 992                     cur_lp[0] = ((*ref_lp >> 1) + correction_lp[lp2 & 0x01][k]) << 1;
 993                     cur_lp[width_tbl[1]] = ((ref_lp[width_tbl[1]] >> 1) + correction_lp[lp2 & 0x01][k]) << 1;
 994                     lp2++;
 995                     break;
 996
 997                   case 1:
 998                     lv1 = (unsigned short)(correction_lp[lp2 & 0x01][*buf1++]);
 999                     lv2 = (unsigned short)(correction_lp[lp2 & 0x01][k]);
1000                     ((unsigned short *)cur_lp)[0] = ((((unsigned short *)ref_lp)[0] >> 1) + lv1) << 1;
1001                     ((unsigned short *)cur_lp)[1] = ((((unsigned short *)ref_lp)[1] >> 1) + lv2) << 1;
1002                     ((unsigned short *)cur_lp)[width_tbl[2]] = ((((unsigned short *)ref_lp)[width_tbl[2]] >> 1) + lv1) << 1;
1003                     ((unsigned short *)cur_lp)[width_tbl[2]+1] = ((((unsigned short *)ref_lp)[width_tbl[2]+1] >> 1) + lv2) << 1;
1004                     lp2++;
1005                     break;
1006
1007                   case 2:
1008                     if(lp2 == 0) {
1009                       for(i = 0, j = 0; i < 4; i++, j += width_tbl[1])
1010                         cur_lp[j] = ref_lp[j];
1011                       lp2 += 2;
1012                     }
1013                     break;
1014
1015                   case 3:
1016                     if(lp2 < 2) {
1017                       for(i = 0, j = 0; i < 6 - (lp2 * 2); i++, j += width_tbl[1])
1018                         cur_lp[j] = ref_lp[j];
1019                       lp2 = 3;
1020                     }
1021                     break;
1022
1023                   case 8:
1024                     if(lp2 == 0) {
1025                       if(rle_v3 == 0) {
1026                         rle_v2 = *buf1;
1027                         rle_v1 = 1;
1028                         if(rle_v2 > 32) {
1029                           rle_v2 -= 32;
1030                           rle_v1 = 0;
1031                         }
1032                         rle_v3 = 1;
1033                       }
1034                       buf1--;
1035
1036                       for(i = 0, j = 0; i < 8; i++, j += width_tbl[1])
1037                         cur_lp[j] = ref_lp[j];
1038
1039                       rle_v2--;
1040                       if(rle_v2 == 0) {
1041                         rle_v3 = 0;
1042                         buf1 += 2;
1043                       }
1044                       lp2 = 4;
1045                       break;
1046                     } else {
1047                       rle_v1 = 1;
1048                       rle_v2 = (*buf1) - 1;
1049                     }
1050                   case 5:
1051                   case 7:
1052                     if(lp2 == 0 && rle_v3 != 0)
1053                       rle_v3 = 0;
1054                     else {
1055                       buf1--;
1056                       rle_v3 = 1;
1057                     }
1058                   case 4:
1059                   case 6:
1060                     for(i = 0, j = 0; i < 8 - (lp2 * 2); i++, j += width_tbl[1])
1061                       cur_lp[j] = ref_lp[j];
1062                     lp2 = 4;
1063                     break;
1064
1065                 case 9:
1066                   fprintf(stderr, "UNTESTED.\n");
1067                   lv1 = *buf1++;
1068                   lv = (lv1 & 0x7F) << 1;
1069                   lv += (lv << 8);
1070                   lv += (lv << 16);
1071                   for(i = 0, j = 0; i < 4; i++, j += width_tbl[1])
1072                     cur_lp[j] = lv;
1073                   if((lv1 & 0x80) != 0) {
1074                     if(rle_v3 != 0)
1075                       rle_v3 = 0;
1076                     else {
1077                       rle_v3 = 1;
1078                       buf1 -= 2;
1079                     }
1080                   }
1081                   lp2 = 4;
1082                   break;
1083
1084                   default:
1085                     return;
1086                 }
1087               }
1088
1089               cur_frm_pos += 4;
1090               ref_frm_pos += 4;
1091             }
1092
1093             cur_frm_pos += (((width * 2) - blks_width) * 4);
1094             ref_frm_pos += (((width * 2) - blks_width) * 4);
1095           }
1096           break;
1097
1098         default:
1099           return;
1100       }
1101     }
1102
1103     if(ptr_ustr < xustr)
1104       return;
1105
1106     for( ; ptr_ustr >= xustr; ptr_ustr--) {
1107       if(ptr_ustr->split_flag != 0) {
1108         ptr_ustr->split_flag = 0;
1109         ptr_ustr->usl7 = (ptr_ustr-1)->usl7;
1110
1111         if(ptr_ustr->split_direction) {
1112           ptr_ustr->xpos += ptr_ustr->width;
1113           ptr_ustr->width = (ptr_ustr-1)->width - ptr_ustr->width;
1114           if(region_160_width <= ptr_ustr->xpos && width < ptr_ustr->width + ptr_ustr->xpos)
1115             ptr_ustr->width = width - ptr_ustr->xpos;
1116         } else {
1117           ptr_ustr->ypos += ptr_ustr->height;
1118           ptr_ustr->height = (ptr_ustr-1)->height - ptr_ustr->height;
1119         }
1120         break;
1121       }
1122     }
1123   }
1124 }
1125
1126 static int indeo3_decode_init(AVCodecContext *avctx)
1127 {
1128     Indeo3DecodeContext *s = avctx->priv_data;
1129
1130     s->avctx = avctx;
1131     s->width = avctx->width;
1132     s->height = avctx->height;
1133     avctx->pix_fmt = PIX_FMT_YUV410P;
1134     avctx->has_b_frames = 0;
1135
1136     build_modpred(s);
1137     iv_alloc_frames(s);
1138
1139     return 0;
1140 }
1141
1142 static int indeo3_decode_frame(AVCodecContext *avctx,
1143                                void *data, int *data_size,
1144                                unsigned char *buf, int buf_size)
1145 {
1146     Indeo3DecodeContext *s=avctx->priv_data;
1147     unsigned char *src, *dest;
1148     int y;
1149
1150     iv_decode_frame(s, buf, buf_size);
1151
1152     s->frame.reference = 0;
1153     if(avctx->get_buffer(avctx, &s->frame) < 0) {
1154         fprintf(stderr, "get_buffer() failed\n");
1155         return -1;
1156     }
1157
1158     src = s->cur_frame->Ybuf;
1159     dest = s->frame.data[0];
1160     for (y = 0; y < s->height; y++) {
1161       memcpy(dest, src, s->cur_frame->y_w);
1162       src += s->cur_frame->y_w;
1163       dest += s->frame.linesize[0];
1164     }
1165
1166     src = s->cur_frame->Ubuf;
1167     dest = s->frame.data[1];
1168     for (y = 0; y < s->height / 4; y++) {
1169       memcpy(dest, src, s->cur_frame->uv_w);
1170       src += s->cur_frame->uv_w;
1171       dest += s->frame.linesize[1];
1172     }
1173
1174     src = s->cur_frame->Vbuf;
1175     dest = s->frame.data[2];
1176     for (y = 0; y < s->height / 4; y++) {
1177       memcpy(dest, src, s->cur_frame->uv_w);
1178       src += s->cur_frame->uv_w;
1179       dest += s->frame.linesize[2];
1180     }
1181
1182     *data_size=sizeof(AVFrame);
1183     *(AVFrame*)data= s->frame;
1184
1185     avctx->release_buffer(avctx, &s->frame);
1186
1187     return buf_size;
1188 }
1189
1190 static int indeo3_decode_end(AVCodecContext *avctx)
1191 {
1192     Indeo3DecodeContext *s = avctx->priv_data;
1193
1194     iv_free_func(s);
1195
1196     return 0;
1197 }
1198
1199 AVCodec indeo3_decoder = {
1200     "indeo3",
1201     CODEC_TYPE_VIDEO,
1202     CODEC_ID_INDEO3,
1203     sizeof(Indeo3DecodeContext),
1204     indeo3_decode_init,
1205     NULL,
1206     indeo3_decode_end,
1207     indeo3_decode_frame,
1208     0,
1209     NULL
1210 };