source/blender/imbuf/intern/anim_movie.c

   1 /*
   2  * ***** BEGIN GPL LICENSE BLOCK *****
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License
   6  * as published by the Free Software Foundation; either version 2
   7  * of the License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software Foundation,
  16  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  17  *
  18  * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
  19  * All rights reserved.
  20  *
  21  * The Original Code is: all of this file.
  22  *
  23  * Contributor(s): none yet.
  24  *
  25  * ***** END GPL LICENSE BLOCK *****
  26  */
  27
  28 /** \file blender/imbuf/intern/anim_movie.c
  29  *  \ingroup imbuf
  30  */
  31
  32
  33 #ifdef _WIN32
  34 #define INC_OLE2
  35 #include <windows.h>
  36 #include <windowsx.h>
  37 #include <mmsystem.h>
  38 #include <memory.h>
  39 #include <commdlg.h>
  40
  41 #ifndef FREE_WINDOWS
  42 #include <vfw.h>
  43 #endif
  44
  45 #undef AVIIF_KEYFRAME /* redefined in AVI_avi.h */
  46 #undef AVIIF_LIST /* redefined in AVI_avi.h */
  47
  48 #define FIXCC(fcc) \
  49         { \
  50                 if (fcc == 0)       { fcc = mmioFOURCC('N', 'o', 'n', 'e'); } \
  51                 if (fcc == BI_RLE8) { fcc = mmioFOURCC('R', 'l', 'e', '8'); } \
  52         } (void)0
  53
  54 #endif
  55
  56 #include <sys/types.h>
  57 #include <ctype.h>
  58 #include <stdlib.h>
  59 #include <stdio.h>
  60 #include <math.h>
  61 #ifndef _WIN32
  62 #include <dirent.h>
  63 #else
  64 #include <io.h>
  65 #endif
  66
  67 #include "BLI_utildefines.h"
  68 #include "BLI_string.h"
  69 #include "BLI_path_util.h"
  70 #include "BLI_math_base.h"
  71
  72 #include "MEM_guardedalloc.h"
  73
  74 #include "DNA_userdef_types.h"
  75
  76 #include "BKE_global.h"
  77 #include "BKE_depsgraph.h"
  78
  79 #include "imbuf.h"
  80
  81 #ifdef WITH_AVI
  82 #  include "AVI_avi.h"
  83 #endif
  84
  85 #ifdef WITH_QUICKTIME
  86 #if defined(_WIN32) || defined(__APPLE__)
  87 #include "quicktime_import.h"
  88 #endif /* _WIN32 || __APPLE__ */
  89 #endif /* WITH_QUICKTIME */
  90
  91 #include "IMB_imbuf_types.h"
  92 #include "IMB_imbuf.h"
  93
  94 #include "IMB_allocimbuf.h"
  95 #include "IMB_anim.h"
  96 #include "IMB_indexer.h"
  97
  98 #ifdef WITH_FFMPEG
  99 #include <libavformat/avformat.h>
 100 #include <libavcodec/avcodec.h>
 101 #include <libavutil/rational.h>
 102 #include <libswscale/swscale.h>
 103
 104 #include "ffmpeg_compat.h"
 105
 106 #endif //WITH_FFMPEG
 107
 108 #ifdef WITH_REDCODE
 109 #ifdef _WIN32 /* on windows we use the ones in extern instead */
 110 #include "libredcode/format.h"
 111 #include "libredcode/codec.h"
 112 #else
 113 #include "libredcode/format.h"
 114 #include "libredcode/codec.h"
 115 #endif
 116 #endif
 117
 118 #include "IMB_colormanagement.h"
 119 #include "IMB_colormanagement_intern.h"
 120
 121 int ismovie(const char *UNUSED(filepath))
 122 {
 123         return 0;
 124 }
 125
 126 /* never called, just keep the linker happy */
 127 static int startmovie(struct anim *UNUSED(anim))
 128 {
 129         return 1;
 130 }
 131 static ImBuf *movie_fetchibuf(struct anim *UNUSED(anim), int UNUSED(position))
 132 {
 133         return NULL;
 134 }
 135 static void free_anim_movie(struct anim *UNUSED(anim))
 136 {
 137         /* pass */
 138 }
 139
 140
 141 #if defined(_WIN32)
 142 # define PATHSEPERATOR '\\'
 143 #else
 144 # define PATHSEPERATOR '/'
 145 #endif
 146
 147 static int an_stringdec(const char *string, char *head, char *tail, unsigned short *numlen)
 148 {
 149         unsigned short len, nume, nums = 0;
 150         short i, found = FALSE;
 151
 152         len = strlen(string);
 153         nume = len;
 154
 155         for (i = len - 1; i >= 0; i--) {
 156                 if (string[i] == PATHSEPERATOR) break;
 157                 if (isdigit(string[i])) {
 158                         if (found) {
 159                                 nums = i;
 160                         }
 161                         else {
 162                                 nume = i;
 163                                 nums = i;
 164                                 found = TRUE;
 165                         }
 166                 }
 167                 else {
 168                         if (found) break;
 169                 }
 170         }
 171         if (found) {
 172                 strcpy(tail, &string[nume + 1]);
 173                 strcpy(head, string);
 174                 head[nums] = '\0';
 175                 *numlen = nume - nums + 1;
 176                 return ((int)atoi(&(string[nums])));
 177         }
 178         tail[0] = '\0';
 179         strcpy(head, string);
 180         *numlen = 0;
 181         return TRUE;
 182 }
 183
 184
 185 static void an_stringenc(char *string, const char *head, const char *tail, unsigned short numlen, int pic)
 186 {
 187         BLI_stringenc(string, head, tail, numlen, pic);
 188 }
 189
 190 #ifdef WITH_AVI
 191 static void free_anim_avi(struct anim *anim)
 192 {
 193 #if defined(_WIN32) && !defined(FREE_WINDOWS)
 194         int i;
 195 #endif
 196
 197         if (anim == NULL) return;
 198         if (anim->avi == NULL) return;
 199
 200         AVI_close(anim->avi);
 201         MEM_freeN(anim->avi);
 202         anim->avi = NULL;
 203
 204 #if defined(_WIN32) && !defined(FREE_WINDOWS)
 205
 206         if (anim->pgf) {
 207                 AVIStreamGetFrameClose(anim->pgf);
 208                 anim->pgf = NULL;
 209         }
 210
 211         for (i = 0; i < anim->avistreams; i++) {
 212                 AVIStreamRelease(anim->pavi[i]);
 213         }
 214         anim->avistreams = 0;
 215
 216         if (anim->pfileopen) {
 217                 AVIFileRelease(anim->pfile);
 218                 anim->pfileopen = 0;
 219                 AVIFileExit();
 220         }
 221 #endif
 222
 223         anim->duration = 0;
 224 }
 225 #endif  /* WITH_AVI */
 226
 227 #ifdef WITH_FFMPEG
 228 static void free_anim_ffmpeg(struct anim *anim);
 229 #endif
 230 #ifdef WITH_REDCODE
 231 static void free_anim_redcode(struct anim *anim);
 232 #endif
 233
 234 void IMB_free_anim(struct anim *anim)
 235 {
 236         if (anim == NULL) {
 237                 printf("free anim, anim == NULL\n");
 238                 return;
 239         }
 240
 241         free_anim_movie(anim);
 242
 243 #ifdef WITH_AVI
 244         free_anim_avi(anim);
 245 #endif
 246
 247 #ifdef WITH_QUICKTIME
 248         free_anim_quicktime(anim);
 249 #endif
 250 #ifdef WITH_FFMPEG
 251         free_anim_ffmpeg(anim);
 252 #endif
 253 #ifdef WITH_REDCODE
 254         free_anim_redcode(anim);
 255 #endif
 256         IMB_free_indices(anim);
 257
 258         MEM_freeN(anim);
 259 }
 260
 261 void IMB_close_anim(struct anim *anim)
 262 {
 263         if (anim == NULL) return;
 264
 265         IMB_free_anim(anim);
 266 }
 267
 268 void IMB_close_anim_proxies(struct anim *anim)
 269 {
 270         if (anim == NULL)
 271                 return;
 272
 273         IMB_free_indices(anim);
 274 }
 275
 276 struct anim *IMB_open_anim(const char *name, int ib_flags, int streamindex, char colorspace[IM_MAX_SPACE])
 277 {
 278         struct anim *anim;
 279
 280         anim = (struct anim *)MEM_callocN(sizeof(struct anim), "anim struct");
 281         if (anim != NULL) {
 282                 if (colorspace) {
 283                         colorspace_set_default_role(colorspace, IM_MAX_SPACE, COLOR_ROLE_DEFAULT_BYTE);
 284                         BLI_strncpy(anim->colorspace, colorspace, sizeof(anim->colorspace));
 285                 }
 286                 else {
 287                         colorspace_set_default_role(anim->colorspace, sizeof(anim->colorspace), COLOR_ROLE_DEFAULT_BYTE);
 288                 }
 289
 290                 BLI_strncpy(anim->name, name, sizeof(anim->name));
 291                 anim->ib_flags = ib_flags;
 292                 anim->streamindex = streamindex;
 293         }
 294         return(anim);
 295 }
 296
 297 #ifdef WITH_AVI
 298 static int startavi(struct anim *anim)
 299 {
 300
 301         AviError avierror;
 302 #if defined(_WIN32) && !defined(FREE_WINDOWS)
 303         HRESULT hr;
 304         int i, firstvideo = -1;
 305         int streamcount;
 306         BYTE abFormat[1024];
 307         LONG l;
 308         LPBITMAPINFOHEADER lpbi;
 309         AVISTREAMINFO avis;
 310
 311         streamcount = anim->streamindex;
 312 #endif
 313
 314         anim->avi = MEM_callocN(sizeof(AviMovie), "animavi");
 315
 316         if (anim->avi == NULL) {
 317                 printf("Can't open avi: %s\n", anim->name);
 318                 return -1;
 319         }
 320
 321         avierror = AVI_open_movie(anim->name, anim->avi);
 322
 323 #if defined(_WIN32) && !defined(FREE_WINDOWS)
 324         if (avierror == AVI_ERROR_COMPRESSION) {
 325                 AVIFileInit();
 326                 hr = AVIFileOpen(&anim->pfile, anim->name, OF_READ, 0L);
 327                 if (hr == 0) {
 328                         anim->pfileopen = 1;
 329                         for (i = 0; i < MAXNUMSTREAMS; i++) {
 330                                 if (AVIFileGetStream(anim->pfile, &anim->pavi[i], 0L, i) != AVIERR_OK) {
 331                                         break;
 332                                 }
 333
 334                                 AVIStreamInfo(anim->pavi[i], &avis, sizeof(avis));
 335                                 if ((avis.fccType == streamtypeVIDEO) && (firstvideo == -1)) {
 336                                         if (streamcount > 0) {
 337                                                 streamcount--;
 338                                                 continue;
 339                                         }
 340                                         anim->pgf = AVIStreamGetFrameOpen(anim->pavi[i], NULL);
 341                                         if (anim->pgf) {
 342                                                 firstvideo = i;
 343
 344                                                 /* get stream length */
 345                                                 anim->avi->header->TotalFrames = AVIStreamLength(anim->pavi[i]);
 346
 347                                                 /* get information about images inside the stream */
 348                                                 l = sizeof(abFormat);
 349                                                 AVIStreamReadFormat(anim->pavi[i], 0, &abFormat, &l);
 350                                                 lpbi = (LPBITMAPINFOHEADER)abFormat;
 351                                                 anim->avi->header->Height = lpbi->biHeight;
 352                                                 anim->avi->header->Width = lpbi->biWidth;
 353                                         }
 354                                         else {
 355                                                 FIXCC(avis.fccHandler);
 356                                                 FIXCC(avis.fccType);
 357                                                 printf("Can't find AVI decoder for type : %4.4hs/%4.4hs\n",
 358                                                        (LPSTR)&avis.fccType,
 359                                                        (LPSTR)&avis.fccHandler);
 360                                         }
 361                                 }
 362                         }
 363
 364                         /* register number of opened avistreams */
 365                         anim->avistreams = i;
 366
 367                         /*
 368                          * Couldn't get any video streams out of this file
 369                          */
 370                         if ((anim->avistreams == 0) || (firstvideo == -1)) {
 371                                 avierror = AVI_ERROR_FORMAT;
 372                         }
 373                         else {
 374                                 avierror = AVI_ERROR_NONE;
 375                                 anim->firstvideo = firstvideo;
 376                         }
 377                 }
 378                 else {
 379                         AVIFileExit();
 380                 }
 381         }
 382 #endif
 383
 384         if (avierror != AVI_ERROR_NONE) {
 385                 AVI_print_error(avierror);
 386                 printf("Error loading avi: %s\n", anim->name);
 387                 free_anim_avi(anim);
 388                 return -1;
 389         }
 390
 391         anim->duration = anim->avi->header->TotalFrames;
 392         anim->params = NULL;
 393
 394         anim->x = anim->avi->header->Width;
 395         anim->y = anim->avi->header->Height;
 396         anim->interlacing = 0;
 397         anim->orientation = 0;
 398         anim->framesize = anim->x * anim->y * 4;
 399
 400         anim->curposition = 0;
 401         anim->preseek = 0;
 402
 403         /*  printf("x:%d y:%d size:%d interl:%d dur:%d\n", anim->x, anim->y, anim->framesize, anim->interlacing, anim->duration);*/
 404
 405         return 0;
 406 }
 407 #endif  /* WITH_AVI */
 408
 409 #ifdef WITH_AVI
 410 static ImBuf *avi_fetchibuf(struct anim *anim, int position)
 411 {
 412         ImBuf *ibuf = NULL;
 413         int *tmp;
 414         int y;
 415
 416         if (anim == NULL) {
 417                 return NULL;
 418         }
 419
 420 #if defined(_WIN32) && !defined(FREE_WINDOWS)
 421         if (anim->avistreams) {
 422                 LPBITMAPINFOHEADER lpbi;
 423
 424                 if (anim->pgf) {
 425                         lpbi = AVIStreamGetFrame(anim->pgf, position + AVIStreamStart(anim->pavi[anim->firstvideo]));
 426                         if (lpbi) {
 427                                 ibuf = IMB_ibImageFromMemory((unsigned char *) lpbi, 100, IB_rect, anim->colorspace, "<avi_fetchibuf>");
 428 //Oh brother...
 429                         }
 430                 }
 431         }
 432         else
 433 #endif
 434         {
 435                 ibuf = IMB_allocImBuf(anim->x, anim->y, 24, IB_rect);
 436
 437                 tmp = AVI_read_frame(anim->avi, AVI_FORMAT_RGB32, position,
 438                                      AVI_get_stream(anim->avi, AVIST_VIDEO, 0));
 439
 440                 if (tmp == NULL) {
 441                         printf("Error reading frame from AVI: '%s'\n", anim->name);
 442                         IMB_freeImBuf(ibuf);
 443                         return NULL;
 444                 }
 445
 446                 for (y = 0; y < anim->y; y++) {
 447                         memcpy(&(ibuf->rect)[((anim->y - y) - 1) * anim->x],  &tmp[y * anim->x],
 448                                anim->x * 4);
 449                 }
 450
 451                 MEM_freeN(tmp);
 452         }
 453
 454         ibuf->rect_colorspace = colormanage_colorspace_get_named(anim->colorspace);
 455
 456         return ibuf;
 457 }
 458 #endif  /* WITH_AVI */
 459
 460 #ifdef WITH_FFMPEG
 461
 462 static int startffmpeg(struct anim *anim)
 463 {
 464         int i, videoStream;
 465
 466         AVCodec *pCodec;
 467         AVFormatContext *pFormatCtx = NULL;
 468         AVCodecContext *pCodecCtx;
 469         AVRational frame_rate;
 470         int frs_num;
 471         double frs_den;
 472         int streamcount;
 473
 474 #ifdef FFMPEG_SWSCALE_COLOR_SPACE_SUPPORT
 475         /* The following for color space determination */
 476         int srcRange, dstRange, brightness, contrast, saturation;
 477         int *table;
 478         const int *inv_table;
 479 #endif
 480
 481         if (anim == NULL) return(-1);
 482
 483         streamcount = anim->streamindex;
 484
 485         if (avformat_open_input(&pFormatCtx, anim->name, NULL, NULL) != 0) {
 486                 return -1;
 487         }
 488
 489         if (avformat_find_stream_info(pFormatCtx, NULL) < 0) {
 490                 avformat_close_input(&pFormatCtx);
 491                 return -1;
 492         }
 493
 494         av_dump_format(pFormatCtx, 0, anim->name, 0);
 495
 496
 497         /* Find the video stream */
 498         videoStream = -1;
 499
 500         for (i = 0; i < pFormatCtx->nb_streams; i++)
 501                 if (pFormatCtx->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
 502                         if (streamcount > 0) {
 503                                 streamcount--;
 504                                 continue;
 505                         }
 506                         videoStream = i;
 507                         break;
 508                 }
 509
 510         if (videoStream == -1) {
 511                 avformat_close_input(&pFormatCtx);
 512                 return -1;
 513         }
 514
 515         pCodecCtx = pFormatCtx->streams[videoStream]->codec;
 516
 517         /* Find the decoder for the video stream */
 518         pCodec = avcodec_find_decoder(pCodecCtx->codec_id);
 519         if (pCodec == NULL) {
 520                 avformat_close_input(&pFormatCtx);
 521                 return -1;
 522         }
 523
 524         pCodecCtx->workaround_bugs = 1;
 525
 526         if (avcodec_open2(pCodecCtx, pCodec, NULL) < 0) {
 527                 avformat_close_input(&pFormatCtx);
 528                 return -1;
 529         }
 530
 531         frame_rate = av_get_r_frame_rate_compat(pFormatCtx->streams[videoStream]);
 532         anim->duration = ceil(pFormatCtx->duration *
 533                               av_q2d(frame_rate) /
 534                               AV_TIME_BASE);
 535         printf("%d\n", anim->duration);
 536
 537         frs_num = frame_rate.num;
 538         frs_den = frame_rate.den;
 539
 540         frs_den *= AV_TIME_BASE;
 541
 542         while (frs_num % 10 == 0 && frs_den >= 2.0 && frs_num > 10) {
 543                 frs_num /= 10;
 544                 frs_den /= 10;
 545         }
 546
 547         anim->frs_sec = frs_num;
 548         anim->frs_sec_base = frs_den;
 549
 550         anim->params = 0;
 551
 552         anim->x = pCodecCtx->width;
 553         anim->y = av_get_cropped_height_from_codec(pCodecCtx);
 554
 555         anim->pFormatCtx = pFormatCtx;
 556         anim->pCodecCtx = pCodecCtx;
 557         anim->pCodec = pCodec;
 558         anim->videoStream = videoStream;
 559
 560         anim->interlacing = 0;
 561         anim->orientation = 0;
 562         anim->framesize = anim->x * anim->y * 4;
 563
 564         anim->curposition = -1;
 565         anim->last_frame = 0;
 566         anim->last_pts = -1;
 567         anim->next_pts = -1;
 568         anim->next_packet.stream_index = -1;
 569
 570         anim->pFrame = avcodec_alloc_frame();
 571         anim->pFrameComplete = FALSE;
 572         anim->pFrameDeinterlaced = avcodec_alloc_frame();
 573         anim->pFrameRGB = avcodec_alloc_frame();
 574
 575         if (avpicture_get_size(PIX_FMT_RGBA, anim->x, anim->y) !=
 576             anim->x * anim->y * 4)
 577         {
 578                 fprintf(stderr,
 579                         "ffmpeg has changed alloc scheme ... ARGHHH!\n");
 580                 avcodec_close(anim->pCodecCtx);
 581                 avformat_close_input(&anim->pFormatCtx);
 582                 av_free(anim->pFrameRGB);
 583                 av_free(anim->pFrameDeinterlaced);
 584                 av_free(anim->pFrame);
 585                 anim->pCodecCtx = NULL;
 586                 return -1;
 587         }
 588
 589         if (anim->ib_flags & IB_animdeinterlace) {
 590                 avpicture_fill((AVPicture *) anim->pFrameDeinterlaced,
 591                                MEM_callocN(avpicture_get_size(
 592                                                anim->pCodecCtx->pix_fmt,
 593                                                anim->pCodecCtx->width,
 594                                                anim->pCodecCtx->height),
 595                                            "ffmpeg deinterlace"),
 596                                anim->pCodecCtx->pix_fmt,
 597                                anim->pCodecCtx->width,
 598                                anim->pCodecCtx->height);
 599         }
 600
 601         if (pCodecCtx->has_b_frames) {
 602                 anim->preseek = 25; /* FIXME: detect gopsize ... */
 603         }
 604         else {
 605                 anim->preseek = 0;
 606         }
 607
 608         anim->img_convert_ctx = sws_getContext(
 609                 anim->x,
 610                 anim->y,
 611                 anim->pCodecCtx->pix_fmt,
 612                 anim->x,
 613                 anim->y,
 614                 PIX_FMT_RGBA,
 615                 SWS_FAST_BILINEAR | SWS_PRINT_INFO | SWS_FULL_CHR_H_INT,
 616                 NULL, NULL, NULL);
 617
 618         if (!anim->img_convert_ctx) {
 619                 fprintf(stderr,
 620                         "Can't transform color space??? Bailing out...\n");
 621                 avcodec_close(anim->pCodecCtx);
 622                 avformat_close_input(&anim->pFormatCtx);
 623                 av_free(anim->pFrameRGB);
 624                 av_free(anim->pFrameDeinterlaced);
 625                 av_free(anim->pFrame);
 626                 anim->pCodecCtx = NULL;
 627                 return -1;
 628         }
 629
 630 #ifdef FFMPEG_SWSCALE_COLOR_SPACE_SUPPORT
 631         /* Try do detect if input has 0-255 YCbCR range (JFIF Jpeg MotionJpeg) */
 632         if (!sws_getColorspaceDetails(anim->img_convert_ctx, (int **)&inv_table, &srcRange,
 633                                       &table, &dstRange, &brightness, &contrast, &saturation))
 634         {
 635                 srcRange = srcRange || anim->pCodecCtx->color_range == AVCOL_RANGE_JPEG;
 636                 inv_table = sws_getCoefficients(anim->pCodecCtx->colorspace);
 637
 638                 if (sws_setColorspaceDetails(anim->img_convert_ctx, (int *)inv_table, srcRange,
 639                                              table, dstRange, brightness, contrast, saturation))
 640                 {
 641                         fprintf(stderr, "Warning: Could not set libswscale colorspace details.\n");
 642                 }
 643         }
 644         else {
 645                 fprintf(stderr, "Warning: Could not set libswscale colorspace details.\n");
 646         }
 647 #endif
 648
 649         return (0);
 650 }
 651
 652 /* postprocess the image in anim->pFrame and do color conversion
 653  * and deinterlacing stuff.
 654  *
 655  * Output is anim->last_frame
 656  */
 657
 658 static void ffmpeg_postprocess(struct anim *anim)
 659 {
 660         AVFrame *input = anim->pFrame;
 661         ImBuf *ibuf = anim->last_frame;
 662         int filter_y = 0;
 663
 664         if (!anim->pFrameComplete) {
 665                 return;
 666         }
 667
 668         /* This means the data wasnt read properly,
 669          * this check stops crashing */
 670         if (input->data[0] == 0 && input->data[1] == 0 &&
 671             input->data[2] == 0 && input->data[3] == 0)
 672         {
 673                 fprintf(stderr, "ffmpeg_fetchibuf: "
 674                         "data not read properly...\n");
 675                 return;
 676         }
 677
 678         av_log(anim->pFormatCtx, AV_LOG_DEBUG,
 679                "  POSTPROC: anim->pFrame planes: %p %p %p %p\n",
 680                input->data[0], input->data[1], input->data[2],
 681                input->data[3]);
 682
 683
 684         if (anim->ib_flags & IB_animdeinterlace) {
 685                 if (avpicture_deinterlace(
 686                         (AVPicture *)
 687                         anim->pFrameDeinterlaced,
 688                         (const AVPicture *)
 689                         anim->pFrame,
 690                         anim->pCodecCtx->pix_fmt,
 691                         anim->pCodecCtx->width,
 692                         anim->pCodecCtx->height) < 0)
 693                 {
 694                         filter_y = TRUE;
 695                 }
 696                 else {
 697                         input = anim->pFrameDeinterlaced;
 698                 }
 699         }
 700
 701         avpicture_fill((AVPicture *) anim->pFrameRGB,
 702                        (unsigned char *) ibuf->rect,
 703                        PIX_FMT_RGBA, anim->x, anim->y);
 704
 705         if (ENDIAN_ORDER == B_ENDIAN) {
 706                 int *dstStride   = anim->pFrameRGB->linesize;
 707                 uint8_t **dst     = anim->pFrameRGB->data;
 708                 int dstStride2[4] = { dstStride[0], 0, 0, 0 };
 709                 uint8_t *dst2[4]  = { dst[0], 0, 0, 0 };
 710                 int x, y, h, w;
 711                 unsigned char *bottom;
 712                 unsigned char *top;
 713
 714                 sws_scale(anim->img_convert_ctx,
 715                           (const uint8_t *const *)input->data,
 716                           input->linesize,
 717                           0,
 718                           anim->y,
 719                           dst2,
 720                           dstStride2);
 721
 722                 bottom = (unsigned char *) ibuf->rect;
 723                 top = bottom + ibuf->x * (ibuf->y - 1) * 4;
 724
 725                 h = (ibuf->y + 1) / 2;
 726                 w = ibuf->x;
 727
 728                 for (y = 0; y < h; y++) {
 729                         unsigned char tmp[4];
 730                         unsigned int *tmp_l =
 731                             (unsigned int *) tmp;
 732
 733                         for (x = 0; x < w; x++) {
 734                                 tmp[0] = bottom[0];
 735                                 tmp[1] = bottom[1];
 736                                 tmp[2] = bottom[2];
 737                                 tmp[3] = bottom[3];
 738
 739                                 bottom[0] = top[0];
 740                                 bottom[1] = top[1];
 741                                 bottom[2] = top[2];
 742                                 bottom[3] = top[3];
 743
 744                                 *(unsigned int *) top = *tmp_l;
 745
 746                                 bottom += 4;
 747                                 top += 4;
 748                         }
 749                         top -= 8 * w;
 750                 }
 751         }
 752         else {
 753                 int *dstStride   = anim->pFrameRGB->linesize;
 754                 uint8_t **dst     = anim->pFrameRGB->data;
 755                 int dstStride2[4] = { -dstStride[0], 0, 0, 0 };
 756                 uint8_t *dst2[4]  = { dst[0] + (anim->y - 1) * dstStride[0],
 757                                           0, 0, 0 };
 758
 759                 sws_scale(anim->img_convert_ctx,
 760                           (const uint8_t *const *)input->data,
 761                           input->linesize,
 762                           0,
 763                           anim->y,
 764                           dst2,
 765                           dstStride2);
 766         }
 767
 768         if (filter_y) {
 769                 IMB_filtery(ibuf);
 770         }
 771 }
 772
 773 /* decode one video frame also considering the packet read into next_packet */
 774
 775 static int ffmpeg_decode_video_frame(struct anim *anim)
 776 {
 777         int rval = 0;
 778
 779         av_log(anim->pFormatCtx, AV_LOG_DEBUG, "  DECODE VIDEO FRAME\n");
 780
 781         if (anim->next_packet.stream_index == anim->videoStream) {
 782                 av_free_packet(&anim->next_packet);
 783                 anim->next_packet.stream_index = -1;
 784         }
 785
 786         while ((rval = av_read_frame(anim->pFormatCtx, &anim->next_packet)) >= 0) {
 787                 av_log(anim->pFormatCtx,
 788                        AV_LOG_DEBUG,
 789                        "%sREAD: strID=%d (VID: %d) dts=%lld pts=%lld "
 790                        "%s\n",
 791                        (anim->next_packet.stream_index == anim->videoStream)
 792                        ? "->" : "  ",
 793                        anim->next_packet.stream_index,
 794                        anim->videoStream,
 795                        (anim->next_packet.dts == AV_NOPTS_VALUE) ? -1 :
 796                        (long long int)anim->next_packet.dts,
 797                        (anim->next_packet.pts == AV_NOPTS_VALUE) ? -1 :
 798                        (long long int)anim->next_packet.pts,
 799                        (anim->next_packet.flags & AV_PKT_FLAG_KEY) ?
 800                        " KEY" : "");
 801                 if (anim->next_packet.stream_index == anim->videoStream) {
 802                         anim->pFrameComplete = 0;
 803
 804                         avcodec_decode_video2(
 805                             anim->pCodecCtx,
 806                             anim->pFrame, &anim->pFrameComplete,
 807                             &anim->next_packet);
 808
 809                         if (anim->pFrameComplete) {
 810                                 anim->next_pts = av_get_pts_from_frame(
 811                                         anim->pFormatCtx, anim->pFrame);
 812
 813                                 av_log(anim->pFormatCtx,
 814                                        AV_LOG_DEBUG,
 815                                        "  FRAME DONE: next_pts=%lld "
 816                                        "pkt_pts=%lld, guessed_pts=%lld\n",
 817                                        (anim->pFrame->pts == AV_NOPTS_VALUE) ?
 818                                        -1 : (long long int)anim->pFrame->pts,
 819                                        (anim->pFrame->pkt_pts == AV_NOPTS_VALUE) ?
 820                                        -1 : (long long int)anim->pFrame->pkt_pts,
 821                                        (long long int)anim->next_pts);
 822                                 break;
 823                         }
 824                 }
 825                 av_free_packet(&anim->next_packet);
 826                 anim->next_packet.stream_index = -1;
 827         }
 828
 829         if (rval == AVERROR_EOF) {
 830                 /* this sets size and data fields to zero,
 831                  * which is necessary to decode the remaining data
 832                  * in the decoder engine after EOF. It also prevents a memory
 833                  * leak, since av_read_frame spills out a full size packet even
 834                  * on EOF... (and: it's save to call on NULL packets) */
 835
 836                 av_free_packet(&anim->next_packet);
 837
 838                 anim->next_packet.size = 0;
 839                 anim->next_packet.data = 0;
 840
 841                 anim->pFrameComplete = 0;
 842
 843                 avcodec_decode_video2(
 844                         anim->pCodecCtx,
 845                         anim->pFrame, &anim->pFrameComplete,
 846                         &anim->next_packet);
 847
 848                 if (anim->pFrameComplete) {
 849                         anim->next_pts = av_get_pts_from_frame(
 850                                 anim->pFormatCtx, anim->pFrame);
 851
 852                         av_log(anim->pFormatCtx,
 853                                AV_LOG_DEBUG,
 854                                "  FRAME DONE (after EOF): next_pts=%lld "
 855                                "pkt_pts=%lld, guessed_pts=%lld\n",
 856                                (anim->pFrame->pts == AV_NOPTS_VALUE) ?
 857                                -1 : (long long int)anim->pFrame->pts,
 858                                (anim->pFrame->pkt_pts == AV_NOPTS_VALUE) ?
 859                                -1 : (long long int)anim->pFrame->pkt_pts,
 860                                (long long int)anim->next_pts);
 861                         rval = 0;
 862                 }
 863         }
 864
 865         if (rval < 0) {
 866                 anim->next_packet.stream_index = -1;
 867
 868                 av_log(anim->pFormatCtx,
 869                        AV_LOG_ERROR, "  DECODE READ FAILED: av_read_frame() "
 870                        "returned error: %d\n",  rval);
 871         }
 872
 873         return (rval >= 0);
 874 }
 875
 876 static void ffmpeg_decode_video_frame_scan(
 877         struct anim *anim, int64_t pts_to_search)
 878 {
 879         /* there seem to exist *very* silly GOP lengths out in the wild... */
 880         int count = 1000;
 881
 882         av_log(anim->pFormatCtx,
 883                AV_LOG_DEBUG,
 884                "SCAN start: considering pts=%lld in search of %lld\n",
 885                (long long int)anim->next_pts, (long long int)pts_to_search);
 886
 887         while (count > 0 && anim->next_pts < pts_to_search) {
 888                 av_log(anim->pFormatCtx,
 889                        AV_LOG_DEBUG,
 890                        "  WHILE: pts=%lld in search of %lld\n",
 891                        (long long int)anim->next_pts, (long long int)pts_to_search);
 892                 if (!ffmpeg_decode_video_frame(anim)) {
 893                         break;
 894                 }
 895                 count--;
 896         }
 897         if (count == 0) {
 898                 av_log(anim->pFormatCtx,
 899                        AV_LOG_ERROR,
 900                        "SCAN failed: completely lost in stream, "
 901                        "bailing out at PTS=%lld, searching for PTS=%lld\n",
 902                        (long long int)anim->next_pts, (long long int)pts_to_search);
 903         }
 904         if (anim->next_pts == pts_to_search) {
 905                 av_log(anim->pFormatCtx,
 906                        AV_LOG_DEBUG, "SCAN HAPPY: we found our PTS!\n");
 907         }
 908         else {
 909                 av_log(anim->pFormatCtx,
 910                        AV_LOG_ERROR, "SCAN UNHAPPY: PTS not matched!\n");
 911         }
 912 }
 913
 914 static int match_format(const char *name, AVFormatContext *pFormatCtx)
 915 {
 916         const char *p;
 917         int len, namelen;
 918
 919         const char *names = pFormatCtx->iformat->name;
 920
 921         if (!name || !names)
 922                 return 0;
 923
 924         namelen = strlen(name);
 925         while ((p = strchr(names, ','))) {
 926                 len = MAX2(p - names, namelen);
 927                 if (!BLI_strncasecmp(name, names, len))
 928                         return 1;
 929                 names = p + 1;
 930         }
 931         return !BLI_strcasecmp(name, names);
 932 }
 933
 934 static int ffmpeg_seek_by_byte(AVFormatContext *pFormatCtx)
 935 {
 936         static const char *byte_seek_list[] = { "mpegts", 0 };
 937         const char **p;
 938
 939         if (pFormatCtx->iformat->flags & AVFMT_TS_DISCONT) {
 940                 return TRUE;
 941         }
 942
 943         p = byte_seek_list;
 944
 945         while (*p) {
 946                 if (match_format(*p++, pFormatCtx)) {
 947                         return TRUE;
 948                 }
 949         }
 950
 951         return FALSE;
 952 }
 953
 954 static ImBuf *ffmpeg_fetchibuf(struct anim *anim, int position,
 955                                IMB_Timecode_Type tc)
 956 {
 957         int64_t pts_to_search = 0;
 958         double frame_rate;
 959         double pts_time_base;
 960         long long st_time;
 961         struct anim_index *tc_index = 0;
 962         AVStream *v_st;
 963         int new_frame_index = 0; /* To quiet gcc barking... */
 964         int old_frame_index = 0; /* To quiet gcc barking... */
 965
 966         if (anim == NULL) return (0);
 967
 968         av_log(anim->pFormatCtx, AV_LOG_DEBUG, "FETCH: pos=%d\n", position);
 969
 970         if (tc != IMB_TC_NONE) {
 971                 tc_index = IMB_anim_open_index(anim, tc);
 972         }
 973
 974         v_st = anim->pFormatCtx->streams[anim->videoStream];
 975
 976         frame_rate = av_q2d(av_get_r_frame_rate_compat(v_st));
 977
 978         st_time = anim->pFormatCtx->start_time;
 979         pts_time_base = av_q2d(v_st->time_base);
 980
 981         if (tc_index) {
 982                 new_frame_index = IMB_indexer_get_frame_index(
 983                         tc_index, position);
 984                 old_frame_index = IMB_indexer_get_frame_index(
 985                         tc_index, anim->curposition);
 986                 pts_to_search = IMB_indexer_get_pts(
 987                         tc_index, new_frame_index);
 988         }
 989         else {
 990                 pts_to_search = (long long)
 991                                 floor(((double) position) /
 992                                       pts_time_base / frame_rate + 0.5);
 993
 994                 if (st_time != AV_NOPTS_VALUE) {
 995                         pts_to_search += st_time / pts_time_base / AV_TIME_BASE;
 996                 }
 997         }
 998
 999         av_log(anim->pFormatCtx, AV_LOG_DEBUG,
1000                "FETCH: looking for PTS=%lld "
1001                "(pts_timebase=%g, frame_rate=%g, st_time=%lld)\n",
1002                (long long int)pts_to_search, pts_time_base, frame_rate, st_time);
1003
1004         if (anim->last_frame &&
1005             anim->last_pts <= pts_to_search && anim->next_pts > pts_to_search)
1006         {
1007                 av_log(anim->pFormatCtx, AV_LOG_DEBUG,
1008                        "FETCH: frame repeat: last: %lld next: %lld\n",
1009                        (long long int)anim->last_pts,
1010                        (long long int)anim->next_pts);
1011                 IMB_refImBuf(anim->last_frame);
1012                 anim->curposition = position;
1013                 return anim->last_frame;
1014         }
1015
1016         if (position > anim->curposition + 1 &&
1017             anim->preseek &&
1018             !tc_index &&
1019             position - (anim->curposition + 1) < anim->preseek)
1020         {
1021                 av_log(anim->pFormatCtx, AV_LOG_DEBUG,
1022                        "FETCH: within preseek interval (no index)\n");
1023
1024                 ffmpeg_decode_video_frame_scan(anim, pts_to_search);
1025         }
1026         else if (tc_index &&
1027                  IMB_indexer_can_scan(tc_index, old_frame_index,
1028                                       new_frame_index))
1029         {
1030                 av_log(anim->pFormatCtx, AV_LOG_DEBUG,
1031                        "FETCH: within preseek interval "
1032                        "(index tells us)\n");
1033
1034                 ffmpeg_decode_video_frame_scan(anim, pts_to_search);
1035         }
1036         else if (position != anim->curposition + 1) {
1037                 long long pos;
1038                 int ret;
1039
1040                 if (tc_index) {
1041                         unsigned long long dts;
1042
1043                         pos = IMB_indexer_get_seek_pos(
1044                             tc_index, new_frame_index);
1045                         dts = IMB_indexer_get_seek_pos_dts(
1046                             tc_index, new_frame_index);
1047
1048                         av_log(anim->pFormatCtx, AV_LOG_DEBUG,
1049                                "TC INDEX seek pos = %lld\n", pos);
1050                         av_log(anim->pFormatCtx, AV_LOG_DEBUG,
1051                                "TC INDEX seek dts = %lld\n", dts);
1052
1053                         if (ffmpeg_seek_by_byte(anim->pFormatCtx)) {
1054                                 av_log(anim->pFormatCtx, AV_LOG_DEBUG,
1055                                        "... using BYTE pos\n");
1056
1057                                 ret = av_seek_frame(anim->pFormatCtx,
1058                                                     -1,
1059                                                     pos, AVSEEK_FLAG_BYTE);
1060                                 av_update_cur_dts(anim->pFormatCtx, v_st, dts);
1061                         }
1062                         else {
1063                                 av_log(anim->pFormatCtx, AV_LOG_DEBUG,
1064                                        "... using DTS pos\n");
1065                                 ret = av_seek_frame(anim->pFormatCtx,
1066                                                     anim->videoStream,
1067                                                     dts, AVSEEK_FLAG_BACKWARD);
1068                         }
1069                 }
1070                 else {
1071                         pos = (long long) (position - anim->preseek) *
1072                               AV_TIME_BASE / frame_rate;
1073
1074                         av_log(anim->pFormatCtx, AV_LOG_DEBUG,
1075                                "NO INDEX seek pos = %lld, st_time = %lld\n",
1076                                pos, (st_time != AV_NOPTS_VALUE) ? st_time : 0);
1077
1078                         if (pos < 0) {
1079                                 pos = 0;
1080                         }
1081
1082                         if (st_time != AV_NOPTS_VALUE) {
1083                                 pos += st_time;
1084                         }
1085
1086                         av_log(anim->pFormatCtx, AV_LOG_DEBUG,
1087                                "NO INDEX final seek pos = %lld\n", pos);
1088
1089                         ret = av_seek_frame(anim->pFormatCtx, -1,
1090                                             pos, AVSEEK_FLAG_BACKWARD);
1091                 }
1092
1093                 if (ret < 0) {
1094                         av_log(anim->pFormatCtx, AV_LOG_ERROR,
1095                                "FETCH: "
1096                                "error while seeking to DTS = %lld "
1097                                "(frameno = %d, PTS = %lld): errcode = %d\n",
1098                                pos, position, (long long int)pts_to_search, ret);
1099                 }
1100
1101                 avcodec_flush_buffers(anim->pCodecCtx);
1102
1103                 anim->next_pts = -1;
1104
1105                 if (anim->next_packet.stream_index == anim->videoStream) {
1106                         av_free_packet(&anim->next_packet);
1107                         anim->next_packet.stream_index = -1;
1108                 }
1109
1110                 /* memset(anim->pFrame, ...) ?? */
1111
1112                 if (ret >= 0) {
1113                         ffmpeg_decode_video_frame_scan(anim, pts_to_search);
1114                 }
1115         }
1116         else if (position == 0 && anim->curposition == -1) {
1117                 /* first frame without seeking special case... */
1118                 ffmpeg_decode_video_frame(anim);
1119         }
1120         else {
1121                 av_log(anim->pFormatCtx, AV_LOG_DEBUG,
1122                        "FETCH: no seek necessary, just continue...\n");
1123         }
1124
1125         IMB_freeImBuf(anim->last_frame);
1126         anim->last_frame = IMB_allocImBuf(anim->x, anim->y, 32, IB_rect);
1127         anim->last_frame->rect_colorspace = colormanage_colorspace_get_named(anim->colorspace);
1128
1129         ffmpeg_postprocess(anim);
1130
1131         anim->last_pts = anim->next_pts;
1132
1133         ffmpeg_decode_video_frame(anim);
1134
1135         anim->curposition = position;
1136
1137         IMB_refImBuf(anim->last_frame);
1138
1139         return anim->last_frame;
1140 }
1141
1142 static void free_anim_ffmpeg(struct anim *anim)
1143 {
1144         if (anim == NULL) return;
1145
1146         if (anim->pCodecCtx) {
1147                 avcodec_close(anim->pCodecCtx);
1148                 avformat_close_input(&anim->pFormatCtx);
1149                 av_free(anim->pFrameRGB);
1150                 av_free(anim->pFrame);
1151
1152                 if (anim->ib_flags & IB_animdeinterlace) {
1153                         MEM_freeN(anim->pFrameDeinterlaced->data[0]);
1154                 }
1155                 av_free(anim->pFrameDeinterlaced);
1156                 sws_freeContext(anim->img_convert_ctx);
1157                 IMB_freeImBuf(anim->last_frame);
1158                 if (anim->next_packet.stream_index != -1) {
1159                         av_free_packet(&anim->next_packet);
1160                 }
1161         }
1162         anim->duration = 0;
1163 }
1164
1165 #endif
1166
1167 #ifdef WITH_REDCODE
1168
1169 static int startredcode(struct anim *anim)
1170 {
1171         anim->redcodeCtx = redcode_open(anim->name);
1172         if (!anim->redcodeCtx) {
1173                 return -1;
1174         }
1175         anim->duration = redcode_get_length(anim->redcodeCtx);
1176
1177         return 0;
1178 }
1179
1180 static ImBuf *redcode_fetchibuf(struct anim *anim, int position)
1181 {
1182         struct ImBuf *ibuf;
1183         struct redcode_frame *frame;
1184         struct redcode_frame_raw *raw_frame;
1185
1186         if (!anim->redcodeCtx) {
1187                 return NULL;
1188         }
1189
1190         frame = redcode_read_video_frame(anim->redcodeCtx, position);
1191
1192         if (!frame) {
1193                 return NULL;
1194         }
1195
1196         raw_frame = redcode_decode_video_raw(frame, 1);
1197
1198         redcode_free_frame(frame);
1199
1200         if (!raw_frame) {
1201                 return NULL;
1202         }
1203
1204         ibuf = IMB_allocImBuf(raw_frame->width * 2,
1205                               raw_frame->height * 2, 32, IB_rectfloat);
1206
1207         redcode_decode_video_float(raw_frame, ibuf->rect_float, 1);
1208
1209         return ibuf;
1210 }
1211
1212 static void free_anim_redcode(struct anim *anim)
1213 {
1214         if (anim->redcodeCtx) {
1215                 redcode_close(anim->redcodeCtx);
1216                 anim->redcodeCtx = 0;
1217         }
1218         anim->duration = 0;
1219 }
1220
1221 #endif
1222
1223 /* Try next picture to read */
1224 /* No picture, try to open next animation */
1225 /* Succeed, remove first image from animation */
1226
1227 static ImBuf *anim_getnew(struct anim *anim)
1228 {
1229         struct ImBuf *ibuf = NULL;
1230
1231         if (anim == NULL) return(NULL);
1232
1233         free_anim_movie(anim);
1234
1235 #ifdef WITH_AVI
1236         free_anim_avi(anim);
1237 #endif
1238
1239 #ifdef WITH_QUICKTIME
1240         free_anim_quicktime(anim);
1241 #endif
1242 #ifdef WITH_FFMPEG
1243         free_anim_ffmpeg(anim);
1244 #endif
1245 #ifdef WITH_REDCODE
1246         free_anim_redcode(anim);
1247 #endif
1248
1249
1250         if (anim->curtype != 0) return (NULL);
1251         anim->curtype = imb_get_anim_type(anim->name);
1252
1253         switch (anim->curtype) {
1254                 case ANIM_SEQUENCE:
1255                         ibuf = IMB_loadiffname(anim->name, anim->ib_flags, anim->colorspace);
1256                         if (ibuf) {
1257                                 BLI_strncpy(anim->first, anim->name, sizeof(anim->first));
1258                                 anim->duration = 1;
1259                         }
1260                         break;
1261                 case ANIM_MOVIE:
1262                         if (startmovie(anim)) return (NULL);
1263                         ibuf = IMB_allocImBuf(anim->x, anim->y, 24, 0); /* fake */
1264                         break;
1265 #ifdef WITH_AVI
1266                 case ANIM_AVI:
1267                         if (startavi(anim)) {
1268                                 printf("couldnt start avi\n");
1269                                 return (NULL);
1270                         }
1271                         ibuf = IMB_allocImBuf(anim->x, anim->y, 24, 0);
1272                         break;
1273 #endif
1274 #ifdef WITH_QUICKTIME
1275                 case ANIM_QTIME:
1276                         if (startquicktime(anim)) return (0);
1277                         ibuf = IMB_allocImBuf(anim->x, anim->y, 24, 0);
1278                         break;
1279 #endif
1280 #ifdef WITH_FFMPEG
1281                 case ANIM_FFMPEG:
1282                         if (startffmpeg(anim)) return (0);
1283                         ibuf = IMB_allocImBuf(anim->x, anim->y, 24, 0);
1284                         break;
1285 #endif
1286 #ifdef WITH_REDCODE
1287                 case ANIM_REDCODE:
1288                         if (startredcode(anim)) return (0);
1289                         ibuf = IMB_allocImBuf(8, 8, 32, 0);
1290                         break;
1291 #endif
1292         }
1293         return(ibuf);
1294 }
1295
1296 struct ImBuf *IMB_anim_previewframe(struct anim *anim)
1297 {
1298         struct ImBuf *ibuf = NULL;
1299         int position = 0;
1300
1301         ibuf = IMB_anim_absolute(anim, 0, IMB_TC_NONE, IMB_PROXY_NONE);
1302         if (ibuf) {
1303                 IMB_freeImBuf(ibuf);
1304                 position = anim->duration / 2;
1305                 ibuf = IMB_anim_absolute(anim, position, IMB_TC_NONE,
1306                                          IMB_PROXY_NONE);
1307         }
1308         return ibuf;
1309 }
1310
1311 struct ImBuf *IMB_anim_absolute(struct anim *anim, int position,
1312                                 IMB_Timecode_Type tc,
1313                                 IMB_Proxy_Size preview_size)
1314 {
1315         struct ImBuf *ibuf = NULL;
1316         char head[256], tail[256];
1317         unsigned short digits;
1318         int pic;
1319         int filter_y;
1320         if (anim == NULL) return(NULL);
1321
1322         filter_y = (anim->ib_flags & IB_animdeinterlace);
1323
1324         if (anim->curtype == 0) {
1325                 ibuf = anim_getnew(anim);
1326                 if (ibuf == NULL) {
1327                         return(NULL);
1328                 }
1329
1330                 IMB_freeImBuf(ibuf); /* ???? */
1331                 ibuf = NULL;
1332         }
1333
1334         if (position < 0) return(NULL);
1335         if (position >= anim->duration) return(NULL);
1336
1337         if (preview_size != IMB_PROXY_NONE) {
1338                 struct anim *proxy = IMB_anim_open_proxy(anim, preview_size);
1339
1340                 if (proxy) {
1341                         position = IMB_anim_index_get_frame_index(
1342                             anim, tc, position);
1343                         return IMB_anim_absolute(
1344                                    proxy, position,
1345                                    IMB_TC_NONE, IMB_PROXY_NONE);
1346                 }
1347         }
1348
1349         switch (anim->curtype) {
1350                 case ANIM_SEQUENCE:
1351                         pic = an_stringdec(anim->first, head, tail, &digits);
1352                         pic += position;
1353                         an_stringenc(anim->name, head, tail, digits, pic);
1354                         ibuf = IMB_loadiffname(anim->name, IB_rect, anim->colorspace);
1355                         if (ibuf) {
1356                                 anim->curposition = position;
1357                         }
1358                         break;
1359                 case ANIM_MOVIE:
1360                         ibuf = movie_fetchibuf(anim, position);
1361                         if (ibuf) {
1362                                 anim->curposition = position;
1363                                 IMB_convert_rgba_to_abgr(ibuf);
1364                         }
1365                         break;
1366 #ifdef WITH_AVI
1367                 case ANIM_AVI:
1368                         ibuf = avi_fetchibuf(anim, position);
1369                         if (ibuf)
1370                                 anim->curposition = position;
1371                         break;
1372 #endif
1373 #ifdef WITH_QUICKTIME
1374                 case ANIM_QTIME:
1375                         ibuf = qtime_fetchibuf(anim, position);
1376                         if (ibuf) {
1377                                 if (ibuf->rect) {
1378                                         /* OCIO_TODO: should happen in quicktime module, but it currently doesn't have access
1379                                          *            to color management's internals
1380                                          */
1381                                         ibuf->rect_colorspace = colormanage_colorspace_get_named(anim->colorspace);
1382                                 }
1383
1384                                 anim->curposition = position;
1385                         }
1386                         break;
1387 #endif
1388 #ifdef WITH_FFMPEG
1389                 case ANIM_FFMPEG:
1390                         ibuf = ffmpeg_fetchibuf(anim, position, tc);
1391                         if (ibuf)
1392                                 anim->curposition = position;
1393                         filter_y = 0; /* done internally */
1394                         break;
1395 #endif
1396 #ifdef WITH_REDCODE
1397                 case ANIM_REDCODE:
1398                         ibuf = redcode_fetchibuf(anim, position);
1399                         if (ibuf) anim->curposition = position;
1400                         break;
1401 #endif
1402         }
1403
1404         if (ibuf) {
1405                 if (filter_y) IMB_filtery(ibuf);
1406                 BLI_snprintf(ibuf->name, sizeof(ibuf->name), "%s.%04d", anim->name, anim->curposition + 1);
1407
1408         }
1409         return(ibuf);
1410 }
1411
1412 /***/
1413
1414 int IMB_anim_get_duration(struct anim *anim, IMB_Timecode_Type tc)
1415 {
1416         struct anim_index *idx;
1417         if (tc == IMB_TC_NONE) {
1418                 return anim->duration;
1419         }
1420
1421         idx = IMB_anim_open_index(anim, tc);
1422         if (!idx) {
1423                 return anim->duration;
1424         }
1425
1426         return IMB_indexer_get_duration(idx);
1427 }
1428
1429 int IMB_anim_get_fps(struct anim *anim,
1430                      short *frs_sec, float *frs_sec_base)
1431 {
1432         if (anim->frs_sec) {
1433                 *frs_sec = anim->frs_sec;
1434                 *frs_sec_base = anim->frs_sec_base;
1435                 return TRUE;
1436         }
1437         return FALSE;
1438 }
1439
1440 void IMB_anim_set_preseek(struct anim *anim, int preseek)
1441 {
1442         anim->preseek = preseek;
1443 }
1444
1445 int IMB_anim_get_preseek(struct anim *anim)
1446 {
1447         return anim->preseek;
1448 }