granicus.if.org Git - imagemagick/blob - coders/dpx.c

   1 /*
   2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   3 %                                                                             %
   4 %                                                                             %
   5 %                                                                             %
   6 %                            DDDD   PPPP   X   X                              %
   7 %                            D   D  P   P   X X                               %
   8 %                            D   D  PPPP    XXX                               %
   9 %                            D   D  P       X X                               %
  10 %                            DDDD   P      X   X                              %
  11 %                                                                             %
  12 %                                                                             %
  13 %                     Read/Write SMTPE DPX Image Format                       %
  14 %                                                                             %
  15 %                              Software Design                                %
  16 %                                   Cristy                                    %
  17 %                                March 2001                                   %
  18 %                                                                             %
  19 %                                                                             %
  20 %  Copyright 1999-2016 ImageMagick Studio LLC, a non-profit organization      %
  21 %  dedicated to making software imaging solutions freely available.           %
  22 %                                                                             %
  23 %  You may not use this file except in compliance with the License.  You may  %
  24 %  obtain a copy of the License at                                            %
  25 %                                                                             %
  26 %    http://www.imagemagick.org/script/license.php                            %
  27 %                                                                             %
  28 %  Unless required by applicable law or agreed to in writing, software        %
  29 %  distributed under the License is distributed on an "AS IS" BASIS,          %
  30 %  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.   %
  31 %  See the License for the specific language governing permissions and        %
  32 %  limitations under the License.                                             %
  33 %                                                                             %
  34 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  35 %
  36 %
  37 */
  38 \f
  39 /*
  40   Include declarations.
  41 */
  42 #include "MagickCore/studio.h"
  43 #include "MagickCore/attribute.h"
  44 #include "MagickCore/artifact.h"
  45 #include "MagickCore/blob.h"
  46 #include "MagickCore/blob-private.h"
  47 #include "MagickCore/cache.h"
  48 #include "MagickCore/colorspace.h"
  49 #include "MagickCore/exception.h"
  50 #include "MagickCore/exception-private.h"
  51 #include "MagickCore/geometry.h"
  52 #include "MagickCore/image.h"
  53 #include "MagickCore/image-private.h"
  54 #include "MagickCore/list.h"
  55 #include "MagickCore/magick.h"
  56 #include "MagickCore/memory_.h"
  57 #include "MagickCore/module.h"
  58 #include "MagickCore/monitor.h"
  59 #include "MagickCore/monitor-private.h"
  60 #include "MagickCore/option.h"
  61 #include "MagickCore/pixel-accessor.h"
  62 #include "MagickCore/profile.h"
  63 #include "MagickCore/property.h"
  64 #include "MagickCore/quantum-private.h"
  65 #include "MagickCore/static.h"
  66 #include "MagickCore/string_.h"
  67 #include "MagickCore/string-private.h"
  68 \f
  69 /*
  70   Define declaration.
  71 */
  72 #define MaxNumberImageElements  8
  73 \f
  74 /*
  75   Typedef declaration.
  76 */
  77 typedef enum
  78 {
  79   UserDefinedColorimetric = 0,
  80   PrintingDensityColorimetric = 1,
  81   LinearColorimetric = 2,
  82   LogarithmicColorimetric = 3,
  83   UnspecifiedVideoColorimetric = 4,
  84   SMTPE_274MColorimetric = 5,
  85   ITU_R709Colorimetric = 6,
  86   ITU_R601_625LColorimetric = 7,
  87   ITU_R601_525LColorimetric = 8,
  88   NTSCCompositeVideoColorimetric = 9,
  89   PALCompositeVideoColorimetric = 10,
  90   ZDepthLinearColorimetric = 11,
  91   DepthHomogeneousColorimetric = 12
  92 } DPXColorimetric;
  93
  94 typedef enum
  95 {
  96   UndefinedComponentType = 0,
  97   RedComponentType = 1,
  98   GreenComponentType = 2,
  99   BlueComponentType = 3,
 100   AlphaComponentType = 4,
 101   LumaComponentType = 6,
 102   ColorDifferenceCbCrComponentType = 7,
 103   DepthComponentType = 8,
 104   CompositeVideoComponentType = 9,
 105   RGBComponentType = 50,
 106   RGBAComponentType = 51,
 107   ABGRComponentType = 52,
 108   CbYCrY422ComponentType = 100,
 109   CbYACrYA4224ComponentType = 101,
 110   CbYCr444ComponentType = 102,
 111   CbYCrA4444ComponentType = 103,
 112   UserDef2ElementComponentType = 150,
 113   UserDef3ElementComponentType = 151,
 114   UserDef4ElementComponentType = 152,
 115   UserDef5ElementComponentType = 153,
 116   UserDef6ElementComponentType = 154,
 117   UserDef7ElementComponentType = 155,
 118   UserDef8ElementComponentType = 156
 119 } DPXComponentType;
 120
 121 typedef enum
 122 {
 123   TransferCharacteristicUserDefined = 0,
 124   TransferCharacteristicPrintingDensity = 1,
 125   TransferCharacteristicLinear = 2,
 126   TransferCharacteristicLogarithmic = 3,
 127   TransferCharacteristicUnspecifiedVideo = 4,
 128   TransferCharacteristicSMTPE274M = 5,     /* 1920x1080 TV */
 129   TransferCharacteristicITU_R709 = 6,      /* ITU R709 */
 130   TransferCharacteristicITU_R601_625L = 7, /* 625 Line */
 131   TransferCharacteristicITU_R601_525L = 8, /* 525 Line */
 132   TransferCharacteristicNTSCCompositeVideo = 9,
 133   TransferCharacteristicPALCompositeVideo = 10,
 134   TransferCharacteristicZDepthLinear = 11,
 135   TransferCharacteristicZDepthHomogeneous = 12
 136 } DPXTransferCharacteristic;
 137
 138 typedef struct _DPXFileInfo
 139 {
 140   unsigned int
 141     magic,
 142     image_offset;
 143
 144   char
 145     version[8];
 146
 147   unsigned int
 148     file_size,
 149     ditto_key,
 150     generic_size,
 151     industry_size,
 152     user_size;
 153
 154   char
 155     filename[100],
 156     timestamp[24],
 157     creator[100],
 158     project[200],
 159     copyright[200];
 160
 161   unsigned int
 162     encrypt_key;
 163
 164   char
 165     reserve[104];
 166 } DPXFileInfo;
 167
 168 typedef struct _DPXFilmInfo
 169 {
 170   char
 171     id[2],
 172     type[2],
 173     offset[2],
 174     prefix[6],
 175     count[4],
 176     format[32];
 177
 178   unsigned int
 179     frame_position,
 180     sequence_extent,
 181     held_count;
 182
 183   float
 184     frame_rate,
 185     shutter_angle;
 186
 187   char
 188     frame_id[32],
 189     slate[100],
 190     reserve[56];
 191 } DPXFilmInfo;
 192
 193 typedef struct _DPXImageElement
 194 {
 195   unsigned int
 196     data_sign,
 197     low_data;
 198
 199   float
 200     low_quantity;
 201
 202   unsigned int
 203     high_data;
 204
 205   float
 206     high_quantity;
 207
 208   unsigned char
 209     descriptor,
 210     transfer_characteristic,
 211     colorimetric,
 212     bit_size;
 213
 214   unsigned short
 215     packing,
 216     encoding;
 217
 218   unsigned int
 219     data_offset,
 220     end_of_line_padding,
 221     end_of_image_padding;
 222
 223   unsigned char
 224     description[32];
 225 } DPXImageElement;
 226
 227 typedef struct _DPXImageInfo
 228 {
 229   unsigned short
 230     orientation,
 231     number_elements;
 232
 233   unsigned int
 234     pixels_per_line,
 235     lines_per_element;
 236
 237   DPXImageElement
 238     image_element[MaxNumberImageElements];
 239
 240   unsigned char
 241     reserve[52];
 242 } DPXImageInfo;
 243
 244 typedef struct _DPXOrientationInfo
 245 {
 246   unsigned int
 247     x_offset,
 248     y_offset;
 249
 250   float
 251     x_center,
 252     y_center;
 253
 254   unsigned int
 255     x_size,
 256     y_size;
 257
 258   char
 259     filename[100],
 260     timestamp[24],
 261     device[32],
 262     serial[32];
 263
 264   unsigned short
 265     border[4];
 266
 267   unsigned int
 268     aspect_ratio[2];
 269
 270   unsigned char
 271     reserve[28];
 272 } DPXOrientationInfo;
 273
 274 typedef struct _DPXTelevisionInfo
 275 {
 276   unsigned int
 277     time_code,
 278     user_bits;
 279
 280   unsigned char
 281     interlace,
 282     field_number,
 283     video_signal,
 284     padding;
 285
 286   float
 287     horizontal_sample_rate,
 288     vertical_sample_rate,
 289     frame_rate,
 290     time_offset,
 291     gamma,
 292     black_level,
 293     black_gain,
 294     break_point,
 295     white_level,
 296     integration_times;
 297
 298   char
 299     reserve[76];
 300 } DPXTelevisionInfo;
 301
 302 typedef struct _DPXUserInfo
 303 {
 304   char
 305     id[32];
 306 } DPXUserInfo;
 307
 308 typedef struct DPXInfo
 309 {
 310   DPXFileInfo
 311     file;
 312
 313   DPXImageInfo
 314     image;
 315
 316   DPXOrientationInfo
 317     orientation;
 318
 319   DPXFilmInfo
 320     film;
 321
 322   DPXTelevisionInfo
 323     television;
 324
 325   DPXUserInfo
 326     user;
 327 } DPXInfo;
 328 \f
 329 /*
 330   Forward declaractions.
 331 */
 332 static MagickBooleanType
 333   WriteDPXImage(const ImageInfo *,Image *,ExceptionInfo *);
 334 \f
 335 /*
 336 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 337 %                                                                             %
 338 %                                                                             %
 339 %                                                                             %
 340 %   I s D P X                                                                 %
 341 %                                                                             %
 342 %                                                                             %
 343 %                                                                             %
 344 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 345 %
 346 %  IsDPX() returns MagickTrue if the image format type, identified by the
 347 %  magick string, is DPX.
 348 %
 349 %  The format of the IsDPX method is:
 350 %
 351 %      MagickBooleanType IsDPX(const unsigned char *magick,const size_t extent)
 352 %
 353 %  A description of each parameter follows:
 354 %
 355 %    o magick: compare image format pattern against these bytes.
 356 %
 357 %    o extent: Specifies the extent of the magick string.
 358 %
 359 */
 360 static MagickBooleanType IsDPX(const unsigned char *magick,const size_t extent)
 361 {
 362   if (extent < 4)
 363     return(MagickFalse);
 364   if (memcmp(magick,"SDPX",4) == 0)
 365     return(MagickTrue);
 366   if (memcmp(magick,"XPDS",4) == 0)
 367     return(MagickTrue);
 368   return(MagickFalse);
 369 }
 370 \f
 371 /*
 372 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 373 %                                                                             %
 374 %                                                                             %
 375 %                                                                             %
 376 %   R e a d D P X I m a g e                                                   %
 377 %                                                                             %
 378 %                                                                             %
 379 %                                                                             %
 380 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 381 %
 382 %  ReadDPXImage() reads an DPX X image file and returns it.  It
 383 %  allocates the memory necessary for the new Image structure and returns a
 384 %  pointer to the new image.
 385 %
 386 %  The format of the ReadDPXImage method is:
 387 %
 388 %      Image *ReadDPXImage(const ImageInfo *image_info,ExceptionInfo *exception)
 389 %
 390 %  A description of each parameter follows:
 391 %
 392 %    o image_info: the image info.
 393 %
 394 %    o exception: return any errors or warnings in this structure.
 395 %
 396 */
 397
 398 static size_t GetBytesPerRow(const size_t columns,
 399   const size_t samples_per_pixel,const size_t bits_per_pixel,
 400   const MagickBooleanType pad)
 401 {
 402   size_t
 403     bytes_per_row;
 404
 405   switch (bits_per_pixel)
 406   {
 407     case 1:
 408     {
 409       bytes_per_row=4*(((size_t) samples_per_pixel*columns*bits_per_pixel+31)/
 410         32);
 411       break;
 412     }
 413     case 8:
 414     default:
 415     {
 416       bytes_per_row=4*(((size_t) samples_per_pixel*columns*bits_per_pixel+31)/
 417         32);
 418       break;
 419     }
 420     case 10:
 421     {
 422       if (pad == MagickFalse)
 423         {
 424           bytes_per_row=4*(((size_t) samples_per_pixel*columns*bits_per_pixel+
 425             31)/32);
 426           break;
 427         }
 428       bytes_per_row=4*(((size_t) (32*((samples_per_pixel*columns+2)/3))+31)/32);
 429       break;
 430     }
 431     case 12:
 432     {
 433       if (pad == MagickFalse)
 434         {
 435           bytes_per_row=4*(((size_t) samples_per_pixel*columns*bits_per_pixel+
 436             31)/32);
 437           break;
 438         }
 439       bytes_per_row=2*(((size_t) (16*samples_per_pixel*columns)+15)/16);
 440       break;
 441     }
 442     case 16:
 443     {
 444       if (pad == MagickFalse)
 445         {
 446           bytes_per_row=2*(((size_t) samples_per_pixel*columns*bits_per_pixel+
 447             15)/16);
 448           break;
 449         }
 450       bytes_per_row=4*(((size_t) samples_per_pixel*columns*bits_per_pixel+31)/
 451         32);
 452       break;
 453     }
 454     case 32:
 455     {
 456       bytes_per_row=4*(((size_t) samples_per_pixel*columns*bits_per_pixel+31)/
 457         32);
 458       break;
 459     }
 460     case 64:
 461     {
 462       bytes_per_row=8*(((size_t) samples_per_pixel*columns*bits_per_pixel+63)/
 463         64);
 464       break;
 465     }
 466   }
 467   return(bytes_per_row);
 468 }
 469
 470 static const char *GetImageTransferCharacteristic(
 471   const DPXTransferCharacteristic characteristic)
 472 {
 473   const char
 474     *transfer;
 475
 476   /*
 477     Get the element transfer characteristic.
 478   */
 479   switch(characteristic)
 480   {
 481     case TransferCharacteristicUserDefined:
 482     {
 483       transfer="UserDefined";
 484       break;
 485     }
 486     case TransferCharacteristicPrintingDensity:
 487     {
 488       transfer="PrintingDensity";
 489       break;
 490     }
 491     case TransferCharacteristicLinear:
 492     {
 493       transfer="Linear";
 494       break;
 495     }
 496     case TransferCharacteristicLogarithmic:
 497     {
 498       transfer="Logarithmic";
 499       break;
 500     }
 501     case TransferCharacteristicUnspecifiedVideo:
 502     {
 503       transfer="UnspecifiedVideo";
 504       break;
 505     }
 506     case TransferCharacteristicSMTPE274M:
 507     {
 508       transfer="SMTPE274M";
 509       break;
 510     }
 511     case TransferCharacteristicITU_R709:
 512     {
 513       transfer="ITU-R709";
 514       break;
 515     }
 516     case TransferCharacteristicITU_R601_625L:
 517     {
 518       transfer="ITU-R601-625L";
 519       break;
 520     }
 521     case TransferCharacteristicITU_R601_525L:
 522     {
 523       transfer="ITU-R601-525L";
 524       break;
 525     }
 526     case TransferCharacteristicNTSCCompositeVideo:
 527     {
 528       transfer="NTSCCompositeVideo";
 529       break;
 530     }
 531     case TransferCharacteristicPALCompositeVideo:
 532     {
 533       transfer="PALCompositeVideo";
 534       break;
 535     }
 536     case TransferCharacteristicZDepthLinear:
 537     {
 538       transfer="ZDepthLinear";
 539       break;
 540     }
 541     case TransferCharacteristicZDepthHomogeneous:
 542     {
 543       transfer="ZDepthHomogeneous";
 544       break;
 545     }
 546     default:
 547       transfer="Reserved";
 548   }
 549   return(transfer);
 550 }
 551
 552 static inline MagickBooleanType IsFloatDefined(const float value)
 553 {
 554   union
 555   {
 556     unsigned int
 557       unsigned_value;
 558
 559     float
 560       float_value;
 561   } quantum;
 562
 563   quantum.unsigned_value=0U;
 564   quantum.float_value=(float) value;
 565   if (quantum.unsigned_value == 0U)
 566     return(MagickFalse);
 567   return(MagickTrue);
 568 }
 569
 570 static void SetPrimaryChromaticity(const DPXColorimetric colorimetric,
 571   ChromaticityInfo *chromaticity_info)
 572 {
 573   switch(colorimetric)
 574   {
 575     case SMTPE_274MColorimetric:
 576     case ITU_R709Colorimetric:
 577     {
 578       chromaticity_info->red_primary.x=0.640;
 579       chromaticity_info->red_primary.y=0.330;
 580       chromaticity_info->red_primary.z=0.030;
 581       chromaticity_info->green_primary.x=0.300;
 582       chromaticity_info->green_primary.y=0.600;
 583       chromaticity_info->green_primary.z=0.100;
 584       chromaticity_info->blue_primary.x=0.150;
 585       chromaticity_info->blue_primary.y=0.060;
 586       chromaticity_info->blue_primary.z=0.790;
 587       chromaticity_info->white_point.x=0.3127;
 588       chromaticity_info->white_point.y=0.3290;
 589       chromaticity_info->white_point.z=0.3582;
 590       break;
 591     }
 592     case NTSCCompositeVideoColorimetric:
 593     {
 594       chromaticity_info->red_primary.x=0.67;
 595       chromaticity_info->red_primary.y=0.33;
 596       chromaticity_info->red_primary.z=0.00;
 597       chromaticity_info->green_primary.x=0.21;
 598       chromaticity_info->green_primary.y=0.71;
 599       chromaticity_info->green_primary.z=0.08;
 600       chromaticity_info->blue_primary.x=0.14;
 601       chromaticity_info->blue_primary.y=0.08;
 602       chromaticity_info->blue_primary.z=0.78;
 603       chromaticity_info->white_point.x=0.310;
 604       chromaticity_info->white_point.y=0.316;
 605       chromaticity_info->white_point.z=0.374;
 606       break;
 607     }
 608     case PALCompositeVideoColorimetric:
 609     {
 610       chromaticity_info->red_primary.x=0.640;
 611       chromaticity_info->red_primary.y=0.330;
 612       chromaticity_info->red_primary.z=0.030;
 613       chromaticity_info->green_primary.x=0.290;
 614       chromaticity_info->green_primary.y=0.600;
 615       chromaticity_info->green_primary.z=0.110;
 616       chromaticity_info->blue_primary.x=0.150;
 617       chromaticity_info->blue_primary.y=0.060;
 618       chromaticity_info->blue_primary.z=0.790;
 619       chromaticity_info->white_point.x=0.3127;
 620       chromaticity_info->white_point.y=0.3290;
 621       chromaticity_info->white_point.z=0.3582;
 622       break;
 623     }
 624     default:
 625       break;
 626   }
 627 }
 628
 629 static void TimeCodeToString(const size_t timestamp,char *code)
 630 {
 631 #define TimeFields  7
 632
 633   unsigned int
 634     shift;
 635
 636   register ssize_t
 637     i;
 638
 639   *code='\0';
 640   shift=4*TimeFields;
 641   for (i=0; i <= TimeFields; i++)
 642   {
 643     (void) FormatLocaleString(code,MagickPathExtent-strlen(code),"%x",
 644       (unsigned int) ((timestamp >> shift) & 0x0fU));
 645     code++;
 646     if (((i % 2) != 0) && (i < TimeFields))
 647       *code++=':';
 648     shift-=4;
 649     *code='\0';
 650   }
 651 }
 652
 653 static Image *ReadDPXImage(const ImageInfo *image_info,ExceptionInfo *exception)
 654 {
 655   char
 656     magick[4],
 657     value[MagickPathExtent];
 658
 659   DPXInfo
 660     dpx;
 661
 662   Image
 663     *image;
 664
 665   MagickBooleanType
 666     status;
 667
 668   MagickOffsetType
 669     offset;
 670
 671   QuantumInfo
 672     *quantum_info;
 673
 674   QuantumType
 675     quantum_type;
 676
 677   register ssize_t
 678     i;
 679
 680   size_t
 681     extent,
 682     samples_per_pixel;
 683
 684   ssize_t
 685     count,
 686     n,
 687     row,
 688     y;
 689
 690   unsigned char
 691     component_type;
 692
 693   /*
 694     Open image file.
 695   */
 696   assert(image_info != (const ImageInfo *) NULL);
 697   assert(image_info->signature == MagickCoreSignature);
 698   if (image_info->debug != MagickFalse)
 699     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
 700       image_info->filename);
 701   assert(exception != (ExceptionInfo *) NULL);
 702   assert(exception->signature == MagickCoreSignature);
 703   image=AcquireImage(image_info,exception);
 704   status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
 705   if (status == MagickFalse)
 706     {
 707       image=DestroyImageList(image);
 708       return((Image *) NULL);
 709     }
 710   /*
 711     Read DPX file header.
 712   */
 713   offset=0;
 714   count=ReadBlob(image,4,(unsigned char *) magick);
 715   offset+=count;
 716   if ((count != 4) || ((LocaleNCompare(magick,"SDPX",4) != 0) &&
 717       (LocaleNCompare((char *) magick,"XPDS",4) != 0)))
 718     ThrowReaderException(CorruptImageError,"ImproperImageHeader");
 719   image->endian=LSBEndian;
 720   if (LocaleNCompare(magick,"SDPX",4) == 0)
 721     image->endian=MSBEndian;
 722   (void) ResetMagickMemory(&dpx,0,sizeof(dpx));
 723   dpx.file.image_offset=ReadBlobLong(image);
 724   offset+=4;
 725   offset+=ReadBlob(image,sizeof(dpx.file.version),(unsigned char *)
 726     dpx.file.version);
 727   (void) FormatImageProperty(image,"dpx:file.version","%.8s",dpx.file.version);
 728   dpx.file.file_size=ReadBlobLong(image);
 729   offset+=4;
 730   dpx.file.ditto_key=ReadBlobLong(image);
 731   offset+=4;
 732   if (dpx.file.ditto_key != ~0U)
 733     (void) FormatImageProperty(image,"dpx:file.ditto.key","%u",
 734       dpx.file.ditto_key);
 735   dpx.file.generic_size=ReadBlobLong(image);
 736   offset+=4;
 737   dpx.file.industry_size=ReadBlobLong(image);
 738   offset+=4;
 739   dpx.file.user_size=ReadBlobLong(image);
 740   offset+=4;
 741   offset+=ReadBlob(image,sizeof(dpx.file.filename),(unsigned char *)
 742     dpx.file.filename);
 743   (void) FormatImageProperty(image,"dpx:file.filename","%.100s",
 744     dpx.file.filename);
 745   (void) FormatImageProperty(image,"document","%.100s",dpx.file.filename);
 746   offset+=ReadBlob(image,sizeof(dpx.file.timestamp),(unsigned char *)
 747     dpx.file.timestamp);
 748   if (*dpx.file.timestamp != '\0')
 749     (void) FormatImageProperty(image,"dpx:file.timestamp","%.24s",
 750       dpx.file.timestamp);
 751   offset+=ReadBlob(image,sizeof(dpx.file.creator),(unsigned char *)
 752     dpx.file.creator);
 753   if (*dpx.file.creator != '\0')
 754     {
 755       (void) FormatImageProperty(image,"dpx:file.creator","%.100s",
 756         dpx.file.creator);
 757       (void) FormatImageProperty(image,"software","%.100s",dpx.file.creator);
 758     }
 759   offset+=ReadBlob(image,sizeof(dpx.file.project),(unsigned char *)
 760     dpx.file.project);
 761   if (*dpx.file.project != '\0')
 762     {
 763       (void) FormatImageProperty(image,"dpx:file.project","%.200s",
 764         dpx.file.project);
 765       (void) FormatImageProperty(image,"comment","%.100s",dpx.file.project);
 766     }
 767   offset+=ReadBlob(image,sizeof(dpx.file.copyright),(unsigned char *)
 768     dpx.file.copyright);
 769   if (*dpx.file.copyright != '\0')
 770     {
 771       (void) FormatImageProperty(image,"dpx:file.copyright","%.200s",
 772         dpx.file.copyright);
 773       (void) FormatImageProperty(image,"copyright","%.100s",
 774         dpx.file.copyright);
 775     }
 776   dpx.file.encrypt_key=ReadBlobLong(image);
 777   offset+=4;
 778   if (dpx.file.encrypt_key != ~0U)
 779     (void) FormatImageProperty(image,"dpx:file.encrypt_key","%u",
 780       dpx.file.encrypt_key);
 781   offset+=ReadBlob(image,sizeof(dpx.file.reserve),(unsigned char *)
 782     dpx.file.reserve);
 783   /*
 784     Read DPX image header.
 785   */
 786   dpx.image.orientation=ReadBlobShort(image);
 787   if (dpx.image.orientation > 7)
 788     ThrowReaderException(CorruptImageError,"ImproperImageHeader");
 789   offset+=2;
 790   if (dpx.image.orientation != (unsigned short) ~0)
 791     (void) FormatImageProperty(image,"dpx:image.orientation","%d",
 792       dpx.image.orientation);
 793   switch (dpx.image.orientation)
 794   {
 795     default:
 796     case 0: image->orientation=TopLeftOrientation; break;
 797     case 1: image->orientation=TopRightOrientation; break;
 798     case 2: image->orientation=BottomLeftOrientation; break;
 799     case 3: image->orientation=BottomRightOrientation; break;
 800     case 4: image->orientation=LeftTopOrientation; break;
 801     case 5: image->orientation=RightTopOrientation; break;
 802     case 6: image->orientation=LeftBottomOrientation; break;
 803     case 7: image->orientation=RightBottomOrientation; break;
 804   }
 805   dpx.image.number_elements=ReadBlobShort(image);
 806   if (dpx.image.number_elements > MaxNumberImageElements)
 807     ThrowReaderException(CorruptImageError,"ImproperImageHeader");
 808   offset+=2;
 809   dpx.image.pixels_per_line=ReadBlobLong(image);
 810   offset+=4;
 811   image->columns=dpx.image.pixels_per_line;
 812   dpx.image.lines_per_element=ReadBlobLong(image);
 813   offset+=4;
 814   image->rows=dpx.image.lines_per_element;
 815   for (i=0; i < 8; i++)
 816   {
 817     char
 818       property[MagickPathExtent];
 819
 820     dpx.image.image_element[i].data_sign=ReadBlobLong(image);
 821     offset+=4;
 822     dpx.image.image_element[i].low_data=ReadBlobLong(image);
 823     offset+=4;
 824     dpx.image.image_element[i].low_quantity=ReadBlobFloat(image);
 825     offset+=4;
 826     dpx.image.image_element[i].high_data=ReadBlobLong(image);
 827     offset+=4;
 828     dpx.image.image_element[i].high_quantity=ReadBlobFloat(image);
 829     offset+=4;
 830     dpx.image.image_element[i].descriptor=(unsigned char) ReadBlobByte(image);
 831     offset++;
 832     dpx.image.image_element[i].transfer_characteristic=(unsigned char)
 833       ReadBlobByte(image);
 834     (void) FormatLocaleString(property,MagickPathExtent,
 835       "dpx:image.element[%lu].transfer-characteristic",(long) i);
 836     (void) FormatImageProperty(image,property,"%s",
 837       GetImageTransferCharacteristic((DPXTransferCharacteristic)
 838       dpx.image.image_element[i].transfer_characteristic));
 839     offset++;
 840     dpx.image.image_element[i].colorimetric=(unsigned char) ReadBlobByte(image);
 841     offset++;
 842     dpx.image.image_element[i].bit_size=(unsigned char) ReadBlobByte(image);
 843     offset++;
 844     dpx.image.image_element[i].packing=ReadBlobShort(image);
 845     offset+=2;
 846     dpx.image.image_element[i].encoding=ReadBlobShort(image);
 847     offset+=2;
 848     dpx.image.image_element[i].data_offset=ReadBlobLong(image);
 849     offset+=4;
 850     dpx.image.image_element[i].end_of_line_padding=ReadBlobLong(image);
 851     offset+=4;
 852     dpx.image.image_element[i].end_of_image_padding=ReadBlobLong(image);
 853     offset+=4;
 854     offset+=ReadBlob(image,sizeof(dpx.image.image_element[i].description),
 855       (unsigned char *) dpx.image.image_element[i].description);
 856   }
 857   SetImageColorspace(image,RGBColorspace,exception);
 858   offset+=ReadBlob(image,sizeof(dpx.image.reserve),(unsigned char *)
 859     dpx.image.reserve);
 860   if (dpx.file.image_offset >= 1664U)
 861     {
 862       /*
 863         Read DPX orientation header.
 864       */
 865       dpx.orientation.x_offset=ReadBlobLong(image);
 866       offset+=4;
 867       if (dpx.orientation.x_offset != ~0U)
 868         (void) FormatImageProperty(image,"dpx:orientation.x_offset","%u",
 869           dpx.orientation.x_offset);
 870       dpx.orientation.y_offset=ReadBlobLong(image);
 871       offset+=4;
 872       if (dpx.orientation.y_offset != ~0U)
 873         (void) FormatImageProperty(image,"dpx:orientation.y_offset","%u",
 874           dpx.orientation.y_offset);
 875       dpx.orientation.x_center=ReadBlobFloat(image);
 876       offset+=4;
 877       if (IsFloatDefined(dpx.orientation.x_center) != MagickFalse)
 878         (void) FormatImageProperty(image,"dpx:orientation.x_center","%g",
 879           dpx.orientation.x_center);
 880       dpx.orientation.y_center=ReadBlobFloat(image);
 881       offset+=4;
 882       if (IsFloatDefined(dpx.orientation.y_center) != MagickFalse)
 883         (void) FormatImageProperty(image,"dpx:orientation.y_center","%g",
 884           dpx.orientation.y_center);
 885       dpx.orientation.x_size=ReadBlobLong(image);
 886       offset+=4;
 887       if (dpx.orientation.x_size != ~0U)
 888         (void) FormatImageProperty(image,"dpx:orientation.x_size","%u",
 889           dpx.orientation.x_size);
 890       dpx.orientation.y_size=ReadBlobLong(image);
 891       offset+=4;
 892       if (dpx.orientation.y_size != ~0U)
 893         (void) FormatImageProperty(image,"dpx:orientation.y_size","%u",
 894           dpx.orientation.y_size);
 895       offset+=ReadBlob(image,sizeof(dpx.orientation.filename),(unsigned char *)
 896         dpx.orientation.filename);
 897       if (*dpx.orientation.filename != '\0')
 898         (void) FormatImageProperty(image,"dpx:orientation.filename","%.100s",
 899           dpx.orientation.filename);
 900       offset+=ReadBlob(image,sizeof(dpx.orientation.timestamp),(unsigned char *)
 901         dpx.orientation.timestamp);
 902       if (*dpx.orientation.timestamp != '\0')
 903         (void) FormatImageProperty(image,"dpx:orientation.timestamp","%.24s",
 904           dpx.orientation.timestamp);
 905       offset+=ReadBlob(image,sizeof(dpx.orientation.device),(unsigned char *)
 906         dpx.orientation.device);
 907       if (*dpx.orientation.device != '\0')
 908         (void) FormatImageProperty(image,"dpx:orientation.device","%.32s",
 909           dpx.orientation.device);
 910       offset+=ReadBlob(image,sizeof(dpx.orientation.serial),(unsigned char *)
 911         dpx.orientation.serial);
 912       if (*dpx.orientation.serial != '\0')
 913         (void) FormatImageProperty(image,"dpx:orientation.serial","%.32s",
 914           dpx.orientation.serial);
 915       for (i=0; i < 4; i++)
 916       {
 917         dpx.orientation.border[i]=ReadBlobShort(image);
 918         offset+=2;
 919       }
 920       if ((dpx.orientation.border[0] != (unsigned short) (~0)) &&
 921           (dpx.orientation.border[1] != (unsigned short) (~0)))
 922         (void) FormatImageProperty(image,"dpx:orientation.border","%dx%d%+d%+d",
 923           dpx.orientation.border[0],dpx.orientation.border[1],
 924           dpx.orientation.border[2],dpx.orientation.border[3]);
 925       for (i=0; i < 2; i++)
 926       {
 927         dpx.orientation.aspect_ratio[i]=ReadBlobLong(image);
 928         offset+=4;
 929       }
 930       if ((dpx.orientation.aspect_ratio[0] != ~0U) &&
 931           (dpx.orientation.aspect_ratio[1] != ~0U))
 932         (void) FormatImageProperty(image,"dpx:orientation.aspect_ratio",
 933           "%ux%u",dpx.orientation.aspect_ratio[0],
 934           dpx.orientation.aspect_ratio[1]);
 935       offset+=ReadBlob(image,sizeof(dpx.orientation.reserve),(unsigned char *)
 936         dpx.orientation.reserve);
 937     }
 938   if (dpx.file.image_offset >= 1920U)
 939     {
 940       /*
 941         Read DPX film header.
 942       */
 943       offset+=ReadBlob(image,sizeof(dpx.film.id),(unsigned char *) dpx.film.id);
 944       if (*dpx.film.id != '\0')
 945         (void) FormatImageProperty(image,"dpx:film.id","%.2s",dpx.film.id);
 946       offset+=ReadBlob(image,sizeof(dpx.film.type),(unsigned char *)
 947         dpx.film.type);
 948       if (*dpx.film.type != '\0')
 949         (void) FormatImageProperty(image,"dpx:film.type","%.2s",dpx.film.type);
 950       offset+=ReadBlob(image,sizeof(dpx.film.offset),(unsigned char *)
 951         dpx.film.offset);
 952       if (*dpx.film.offset != '\0')
 953         (void) FormatImageProperty(image,"dpx:film.offset","%.2s",
 954           dpx.film.offset);
 955       offset+=ReadBlob(image,sizeof(dpx.film.prefix),(unsigned char *)
 956         dpx.film.prefix);
 957       if (*dpx.film.prefix != '\0')
 958         (void) FormatImageProperty(image,"dpx:film.prefix","%.6s",
 959           dpx.film.prefix);
 960       offset+=ReadBlob(image,sizeof(dpx.film.count),(unsigned char *)
 961         dpx.film.count);
 962       if (*dpx.film.count != '\0')
 963         (void) FormatImageProperty(image,"dpx:film.count","%.4s",
 964           dpx.film.count);
 965       offset+=ReadBlob(image,sizeof(dpx.film.format),(unsigned char *)
 966         dpx.film.format);
 967       if (*dpx.film.format != '\0')
 968         (void) FormatImageProperty(image,"dpx:film.format","%.4s",
 969           dpx.film.format);
 970       dpx.film.frame_position=ReadBlobLong(image);
 971       offset+=4;
 972       if (dpx.film.frame_position != ~0U)
 973         (void) FormatImageProperty(image,"dpx:film.frame_position","%u",
 974           dpx.film.frame_position);
 975       dpx.film.sequence_extent=ReadBlobLong(image);
 976       offset+=4;
 977       if (dpx.film.sequence_extent != ~0U)
 978         (void) FormatImageProperty(image,"dpx:film.sequence_extent","%u",
 979           dpx.film.sequence_extent);
 980       dpx.film.held_count=ReadBlobLong(image);
 981       offset+=4;
 982       if (dpx.film.held_count != ~0U)
 983         (void) FormatImageProperty(image,"dpx:film.held_count","%u",
 984           dpx.film.held_count);
 985       dpx.film.frame_rate=ReadBlobFloat(image);
 986       offset+=4;
 987       if (IsFloatDefined(dpx.film.frame_rate) != MagickFalse)
 988         (void) FormatImageProperty(image,"dpx:film.frame_rate","%g",
 989           dpx.film.frame_rate);
 990       dpx.film.shutter_angle=ReadBlobFloat(image);
 991       offset+=4;
 992       if (IsFloatDefined(dpx.film.shutter_angle) != MagickFalse)
 993         (void) FormatImageProperty(image,"dpx:film.shutter_angle","%g",
 994           dpx.film.shutter_angle);
 995       offset+=ReadBlob(image,sizeof(dpx.film.frame_id),(unsigned char *)
 996         dpx.film.frame_id);
 997       if (*dpx.film.frame_id != '\0')
 998         (void) FormatImageProperty(image,"dpx:film.frame_id","%.32s",
 999           dpx.film.frame_id);
1000       offset+=ReadBlob(image,sizeof(dpx.film.slate),(unsigned char *)
1001         dpx.film.slate);
1002       if (*dpx.film.slate != '\0')
1003         (void) FormatImageProperty(image,"dpx:film.slate","%.100s",
1004           dpx.film.slate);
1005       offset+=ReadBlob(image,sizeof(dpx.film.reserve),(unsigned char *)
1006         dpx.film.reserve);
1007     }
1008   if (dpx.file.image_offset >= 2048U)
1009     {
1010       /*
1011         Read DPX television header.
1012       */
1013       dpx.television.time_code=(unsigned int) ReadBlobLong(image);
1014       offset+=4;
1015       TimeCodeToString(dpx.television.time_code,value);
1016       (void) SetImageProperty(image,"dpx:television.time.code",value,exception);
1017       dpx.television.user_bits=(unsigned int) ReadBlobLong(image);
1018       offset+=4;
1019       TimeCodeToString(dpx.television.user_bits,value);
1020       (void) SetImageProperty(image,"dpx:television.user.bits",value,exception);
1021       dpx.television.interlace=(unsigned char) ReadBlobByte(image);
1022       offset++;
1023       if (dpx.television.interlace != 0)
1024         (void) FormatImageProperty(image,"dpx:television.interlace","%.20g",
1025           (double) dpx.television.interlace);
1026       dpx.television.field_number=(unsigned char) ReadBlobByte(image);
1027       offset++;
1028       if (dpx.television.field_number != 0)
1029         (void) FormatImageProperty(image,"dpx:television.field_number","%.20g",
1030           (double) dpx.television.field_number);
1031       dpx.television.video_signal=(unsigned char) ReadBlobByte(image);
1032       offset++;
1033       if (dpx.television.video_signal != 0)
1034         (void) FormatImageProperty(image,"dpx:television.video_signal","%.20g",
1035           (double) dpx.television.video_signal);
1036       dpx.television.padding=(unsigned char) ReadBlobByte(image);
1037       offset++;
1038       if (dpx.television.padding != 0)
1039         (void) FormatImageProperty(image,"dpx:television.padding","%d",
1040           dpx.television.padding);
1041       dpx.television.horizontal_sample_rate=ReadBlobFloat(image);
1042       offset+=4;
1043       if (IsFloatDefined(dpx.television.horizontal_sample_rate) != MagickFalse)
1044         (void) FormatImageProperty(image,
1045           "dpx:television.horizontal_sample_rate","%g",
1046           dpx.television.horizontal_sample_rate);
1047       dpx.television.vertical_sample_rate=ReadBlobFloat(image);
1048       offset+=4;
1049       if (IsFloatDefined(dpx.television.vertical_sample_rate) != MagickFalse)
1050         (void) FormatImageProperty(image,"dpx:television.vertical_sample_rate",
1051           "%g",dpx.television.vertical_sample_rate);
1052       dpx.television.frame_rate=ReadBlobFloat(image);
1053       offset+=4;
1054       if (IsFloatDefined(dpx.television.frame_rate) != MagickFalse)
1055         (void) FormatImageProperty(image,"dpx:television.frame_rate","%g",
1056           dpx.television.frame_rate);
1057       dpx.television.time_offset=ReadBlobFloat(image);
1058       offset+=4;
1059       if (IsFloatDefined(dpx.television.time_offset) != MagickFalse)
1060         (void) FormatImageProperty(image,"dpx:television.time_offset","%g",
1061           dpx.television.time_offset);
1062       dpx.television.gamma=ReadBlobFloat(image);
1063       offset+=4;
1064       if (IsFloatDefined(dpx.television.gamma) != MagickFalse)
1065         (void) FormatImageProperty(image,"dpx:television.gamma","%g",
1066           dpx.television.gamma);
1067       dpx.television.black_level=ReadBlobFloat(image);
1068       offset+=4;
1069       if (IsFloatDefined(dpx.television.black_level) != MagickFalse)
1070         (void) FormatImageProperty(image,"dpx:television.black_level","%g",
1071           dpx.television.black_level);
1072       dpx.television.black_gain=ReadBlobFloat(image);
1073       offset+=4;
1074       if (IsFloatDefined(dpx.television.black_gain) != MagickFalse)
1075         (void) FormatImageProperty(image,"dpx:television.black_gain","%g",
1076           dpx.television.black_gain);
1077       dpx.television.break_point=ReadBlobFloat(image);
1078       offset+=4;
1079       if (IsFloatDefined(dpx.television.break_point) != MagickFalse)
1080         (void) FormatImageProperty(image,"dpx:television.break_point","%g",
1081           dpx.television.break_point);
1082       dpx.television.white_level=ReadBlobFloat(image);
1083       offset+=4;
1084       if (IsFloatDefined(dpx.television.white_level) != MagickFalse)
1085         (void) FormatImageProperty(image,"dpx:television.white_level","%g",
1086           dpx.television.white_level);
1087       dpx.television.integration_times=ReadBlobFloat(image);
1088       offset+=4;
1089       if (IsFloatDefined(dpx.television.integration_times) != MagickFalse)
1090         (void) FormatImageProperty(image,"dpx:television.integration_times",
1091           "%g",dpx.television.integration_times);
1092       offset+=ReadBlob(image,sizeof(dpx.television.reserve),(unsigned char *)
1093         dpx.television.reserve);
1094     }
1095   if (dpx.file.image_offset > 2080U)
1096     {
1097       /*
1098         Read DPX user header.
1099       */
1100       offset+=ReadBlob(image,sizeof(dpx.user.id),(unsigned char *) dpx.user.id);
1101       if (*dpx.user.id != '\0')
1102         (void) FormatImageProperty(image,"dpx:user.id","%.32s",dpx.user.id);
1103       if ((dpx.file.user_size != ~0U) &&
1104           ((size_t) dpx.file.user_size > sizeof(dpx.user.id)))
1105         {
1106           StringInfo
1107             *profile;
1108
1109            profile=BlobToStringInfo((const unsigned char *) NULL,
1110              dpx.file.user_size-sizeof(dpx.user.id));
1111            if (profile == (StringInfo *) NULL)
1112              ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
1113            offset+=ReadBlob(image,GetStringInfoLength(profile),
1114              GetStringInfoDatum(profile));
1115            (void) SetImageProfile(image,"dpx:user-data",profile,exception);
1116            profile=DestroyStringInfo(profile);
1117         }
1118     }
1119   for ( ; offset < (MagickOffsetType) dpx.file.image_offset; offset++)
1120     (void) ReadBlobByte(image);
1121   if (image_info->ping != MagickFalse)
1122     {
1123       (void) CloseBlob(image);
1124       return(GetFirstImageInList(image));
1125     }
1126   status=SetImageExtent(image,image->columns,image->rows,exception);
1127   if (status == MagickFalse)
1128     return(DestroyImageList(image));
1129   for (n=0; n < (ssize_t) dpx.image.number_elements; n++)
1130   {
1131     /*
1132       Convert DPX raster image to pixel packets.
1133     */
1134     if ((dpx.image.image_element[n].data_offset != ~0U) &&
1135         (dpx.image.image_element[n].data_offset != 0U))
1136       {
1137          MagickOffsetType
1138            data_offset;
1139
1140          data_offset=(MagickOffsetType) dpx.image.image_element[n].data_offset;
1141          if (data_offset < offset)
1142            offset=SeekBlob(image,data_offset,SEEK_SET);
1143          else
1144            for ( ; offset < data_offset; offset++)
1145              (void) ReadBlobByte(image);
1146           if (offset != data_offset)
1147             ThrowReaderException(CorruptImageError,"UnableToReadImageData");
1148        }
1149     SetPrimaryChromaticity((DPXColorimetric)
1150       dpx.image.image_element[n].colorimetric,&image->chromaticity);
1151     image->depth=dpx.image.image_element[n].bit_size;
1152     samples_per_pixel=1;
1153     quantum_type=GrayQuantum;
1154     component_type=dpx.image.image_element[n].descriptor;
1155     switch (component_type)
1156     {
1157       case CbYCrY422ComponentType:
1158       {
1159         samples_per_pixel=2;
1160         quantum_type=CbYCrYQuantum;
1161         break;
1162       }
1163       case CbYACrYA4224ComponentType:
1164       case CbYCr444ComponentType:
1165       {
1166         samples_per_pixel=3;
1167         quantum_type=CbYCrQuantum;
1168         break;
1169       }
1170       case RGBComponentType:
1171       {
1172         samples_per_pixel=3;
1173         quantum_type=RGBQuantum;
1174         break;
1175       }
1176       case ABGRComponentType:
1177       case RGBAComponentType:
1178       {
1179         image->alpha_trait=BlendPixelTrait;
1180         samples_per_pixel=4;
1181         quantum_type=RGBAQuantum;
1182         break;
1183       }
1184       default:
1185         break;
1186     }
1187     switch (component_type)
1188     {
1189       case CbYCrY422ComponentType:
1190       case CbYACrYA4224ComponentType:
1191       case CbYCr444ComponentType:
1192       {
1193         SetImageColorspace(image,Rec709YCbCrColorspace,exception);
1194         break;
1195       }
1196       case LumaComponentType:
1197       {
1198         SetImageColorspace(image,GRAYColorspace,exception);
1199         break;
1200       }
1201       default:
1202       {
1203         SetImageColorspace(image,sRGBColorspace,exception);
1204         if (dpx.image.image_element[n].transfer_characteristic == LogarithmicColorimetric)
1205           SetImageColorspace(image,LogColorspace,exception);
1206         if (dpx.image.image_element[n].transfer_characteristic == PrintingDensityColorimetric)
1207           SetImageColorspace(image,LogColorspace,exception);
1208         break;
1209       }
1210     }
1211     extent=GetBytesPerRow(image->columns,samples_per_pixel,image->depth,
1212       dpx.image.image_element[n].packing == 0 ? MagickFalse : MagickTrue);
1213     /*
1214       DPX any-bit pixel format.
1215     */
1216     status=MagickTrue;
1217     row=0;
1218     quantum_info=AcquireQuantumInfo(image_info,image);
1219     if (quantum_info == (QuantumInfo *) NULL)
1220       ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
1221     SetQuantumQuantum(quantum_info,32);
1222     SetQuantumPack(quantum_info,dpx.image.image_element[n].packing == 0 ?
1223       MagickTrue : MagickFalse);
1224     for (y=0; y < (ssize_t) image->rows; y++)
1225     {
1226       const unsigned char
1227         *pixels;
1228
1229       MagickBooleanType
1230         sync;
1231
1232       register Quantum
1233         *q;
1234
1235       size_t
1236         length;
1237
1238       ssize_t
1239         offset;
1240
1241       if (status == MagickFalse)
1242         continue;
1243       pixels=(const unsigned char *) ReadBlobStream(image,extent,
1244         GetQuantumPixels(quantum_info),&count);
1245       if (count != (ssize_t) extent)
1246         status=MagickFalse;
1247       if ((image->progress_monitor != (MagickProgressMonitor) NULL) &&
1248           (image->previous == (Image *) NULL))
1249         {
1250           MagickBooleanType
1251             proceed;
1252
1253           proceed=SetImageProgress(image,LoadImageTag,(MagickOffsetType) row,
1254             image->rows);
1255           if (proceed == MagickFalse)
1256             status=MagickFalse;
1257         }
1258       offset=row++;
1259       q=QueueAuthenticPixels(image,0,offset,image->columns,1,exception);
1260       if (q == (Quantum *) NULL)
1261         {
1262           status=MagickFalse;
1263           continue;
1264         }
1265       length=ImportQuantumPixels(image,(CacheView *) NULL,quantum_info,
1266         quantum_type,pixels,exception);
1267       (void) length;
1268       sync=SyncAuthenticPixels(image,exception);
1269       if (sync == MagickFalse)
1270         status=MagickFalse;
1271     }
1272     quantum_info=DestroyQuantumInfo(quantum_info);
1273     if (status == MagickFalse)
1274       ThrowReaderException(CorruptImageError,"UnableToReadImageData");
1275     SetQuantumImageType(image,quantum_type);
1276     if (EOFBlob(image) != MagickFalse)
1277       ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
1278         image->filename);
1279     if ((i+1) < (ssize_t) dpx.image.number_elements)
1280       {
1281         /*
1282           Allocate next image structure.
1283         */
1284         AcquireNextImage(image_info,image,exception);
1285         if (GetNextImageInList(image) == (Image *) NULL)
1286           {
1287             image=DestroyImageList(image);
1288             return((Image *) NULL);
1289           }
1290         image=SyncNextImageInList(image);
1291         status=SetImageProgress(image,LoadImagesTag,TellBlob(image),
1292           GetBlobSize(image));
1293         if (status == MagickFalse)
1294           break;
1295       }
1296   }
1297   (void) CloseBlob(image);
1298   return(GetFirstImageInList(image));
1299 }
1300 \f
1301 /*
1302 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1303 %                                                                             %
1304 %                                                                             %
1305 %                                                                             %
1306 %   R e g i s t e r D P X I m a g e                                           %
1307 %                                                                             %
1308 %                                                                             %
1309 %                                                                             %
1310 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1311 %
1312 %  RegisterDPXImage() adds properties for the DPX image format to
1313 %  the list of supported formats.  The properties include the image format
1314 %  tag, a method to read and/or write the format, whether the format
1315 %  supports the saving of more than one frame to the same file or blob,
1316 %  whether the format supports native in-memory I/O, and a brief
1317 %  description of the format.
1318 %
1319 %  The format of the RegisterDPXImage method is:
1320 %
1321 %      size_t RegisterDPXImage(void)
1322 %
1323 */
1324 ModuleExport size_t RegisterDPXImage(void)
1325 {
1326   MagickInfo
1327     *entry;
1328
1329   static const char
1330     *DPXNote =
1331     {
1332       "Digital Moving Picture Exchange Bitmap, Version 2.0.\n"
1333       "See SMPTE 268M-2003 specification at http://www.smtpe.org\n"
1334     };
1335
1336   entry=AcquireMagickInfo("DPX","DPX","SMPTE 268M-2003 (DPX 2.0)");
1337   entry->decoder=(DecodeImageHandler *) ReadDPXImage;
1338   entry->encoder=(EncodeImageHandler *) WriteDPXImage;
1339   entry->magick=(IsImageFormatHandler *) IsDPX;
1340   entry->flags^=CoderAdjoinFlag;
1341   entry->flags|=CoderSeekableStreamFlag;
1342   entry->note=ConstantString(DPXNote);
1343   (void) RegisterMagickInfo(entry);
1344   return(MagickImageCoderSignature);
1345 }
1346 \f
1347 /*
1348 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1349 %                                                                             %
1350 %                                                                             %
1351 %                                                                             %
1352 %   U n r e g i s t e r D P X I m a g e                                       %
1353 %                                                                             %
1354 %                                                                             %
1355 %                                                                             %
1356 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1357 %
1358 %  UnregisterDPXImage() removes format registrations made by the
1359 %  DPX module from the list of supported formats.
1360 %
1361 %  The format of the UnregisterDPXImage method is:
1362 %
1363 %      UnregisterDPXImage(void)
1364 %
1365 */
1366 ModuleExport void UnregisterDPXImage(void)
1367 {
1368   (void) UnregisterMagickInfo("DPX");
1369 }
1370 \f
1371 /*
1372 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1373 %                                                                             %
1374 %                                                                             %
1375 %                                                                             %
1376 %   W r i t e D P X I m a g e                                                 %
1377 %                                                                             %
1378 %                                                                             %
1379 %                                                                             %
1380 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1381 %
1382 %  WriteDPXImage() writes an image in DPX encoded image format.
1383 %
1384 %  The format of the WriteDPXImage method is:
1385 %
1386 %      MagickBooleanType WriteDPXImage(const ImageInfo *image_info,
1387 %        Image *image,ExceptionInfo *exception)
1388 %
1389 %  A description of each parameter follows.
1390 %
1391 %    o image_info: the image info.
1392 %
1393 %    o image:  The image.
1394 %
1395 %    o exception: return any errors or warnings in this structure.
1396 %
1397 */
1398
1399 static unsigned int StringToTimeCode(const char *key)
1400 {
1401   char
1402     buffer[2];
1403
1404   register ssize_t
1405     i;
1406
1407   unsigned int
1408     shift,
1409     value;
1410
1411   value=0;
1412   shift=28;
1413   buffer[1]='\0';
1414   for (i=0; (*key != 0) && (i < 11); i++)
1415   {
1416     if (isxdigit((int) ((unsigned char) *key)) == 0)
1417       {
1418         key++;
1419         continue;
1420       }
1421     buffer[0]=(*key++);
1422     value|=(unsigned int) ((strtol(buffer,(char **) NULL,16)) << shift);
1423     shift-=4;
1424   }
1425   return(value);
1426 }
1427
1428 static inline const char *GetDPXProperty(const Image *image,
1429   const char *property,ExceptionInfo *exception)
1430 {
1431   const char
1432     *value;
1433
1434   value=GetImageArtifact(image,property);
1435   if (value != (const char *) NULL)
1436     return(value);
1437   return(GetImageProperty(image,property,exception));
1438 }
1439
1440 static MagickBooleanType WriteDPXImage(const ImageInfo *image_info,Image *image,
1441   ExceptionInfo *exception)
1442 {
1443   char
1444     *url;
1445
1446   const char
1447     *value;
1448
1449   const StringInfo
1450     *profile;
1451
1452   DPXInfo
1453     dpx;
1454
1455   GeometryInfo
1456     geometry_info;
1457
1458   MagickBooleanType
1459     status;
1460
1461   MagickOffsetType
1462     offset;
1463
1464   MagickStatusType
1465     flags;
1466
1467   QuantumInfo
1468     *quantum_info;
1469
1470   QuantumType
1471     quantum_type;
1472
1473   register const Quantum
1474     *p;
1475
1476   register ssize_t
1477     i;
1478
1479   size_t
1480     extent;
1481
1482   ssize_t
1483     count,
1484     horizontal_factor,
1485     vertical_factor,
1486     y;
1487
1488   time_t
1489     seconds;
1490
1491   unsigned char
1492     *pixels;
1493
1494   /*
1495     Open output image file.
1496   */
1497   assert(image_info != (const ImageInfo *) NULL);
1498   assert(image_info->signature == MagickCoreSignature);
1499   assert(image != (Image *) NULL);
1500   assert(image->signature == MagickCoreSignature);
1501   if (image->debug != MagickFalse)
1502     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
1503   horizontal_factor=4;
1504   vertical_factor=4;
1505   if (image_info->sampling_factor != (char *) NULL)
1506     {
1507       flags=ParseGeometry(image_info->sampling_factor,&geometry_info);
1508       horizontal_factor=(ssize_t) geometry_info.rho;
1509       vertical_factor=(ssize_t) geometry_info.sigma;
1510       if ((flags & SigmaValue) == 0)
1511         vertical_factor=horizontal_factor;
1512       if ((horizontal_factor != 1) && (horizontal_factor != 2) &&
1513           (horizontal_factor != 4) && (vertical_factor != 1) &&
1514           (vertical_factor != 2) && (vertical_factor != 4))
1515         ThrowWriterException(CorruptImageError,"UnexpectedSamplingFactor");
1516     }
1517   if ((image->colorspace == YCbCrColorspace) &&
1518       ((horizontal_factor == 2) || (vertical_factor == 2)))
1519     if ((image->columns % 2) != 0)
1520       image->columns++;
1521   assert(exception != (ExceptionInfo *) NULL);
1522   assert(exception->signature == MagickCoreSignature);
1523   status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
1524   if (status == MagickFalse)
1525     return(status);
1526   /*
1527     Write file header.
1528   */
1529   (void) ResetMagickMemory(&dpx,0,sizeof(dpx));
1530   offset=0;
1531   dpx.file.magic=0x53445058U;
1532   offset+=WriteBlobLong(image,dpx.file.magic);
1533   dpx.file.image_offset=0x2000U;
1534   profile=GetImageProfile(image,"dpx:user-data");
1535   if (profile != (StringInfo *) NULL)
1536     {
1537       if (GetStringInfoLength(profile) > 1048576)
1538         ThrowWriterException(ImageError,"WidthOrHeightExceedsLimit");
1539       dpx.file.image_offset+=(unsigned int) GetStringInfoLength(profile);
1540       dpx.file.image_offset=(((dpx.file.image_offset+0x2000-1)/0x2000)*0x2000);
1541     }
1542   offset+=WriteBlobLong(image,dpx.file.image_offset);
1543   (void) strncpy(dpx.file.version,"V2.0",sizeof(dpx.file.version)-1);
1544   offset+=WriteBlob(image,8,(unsigned char *) &dpx.file.version);
1545   dpx.file.file_size=(unsigned int) (4U*image->columns*image->rows+
1546     dpx.file.image_offset);
1547   offset+=WriteBlobLong(image,dpx.file.file_size);
1548   dpx.file.ditto_key=1U;  /* new frame */
1549   offset+=WriteBlobLong(image,dpx.file.ditto_key);
1550   dpx.file.generic_size=0x00000680U;
1551   offset+=WriteBlobLong(image,dpx.file.generic_size);
1552   dpx.file.industry_size=0x00000180U;
1553   offset+=WriteBlobLong(image,dpx.file.industry_size);
1554   dpx.file.user_size=0;
1555   if (profile != (StringInfo *) NULL)
1556     {
1557       dpx.file.user_size+=(unsigned int) GetStringInfoLength(profile);
1558       dpx.file.user_size=(((dpx.file.user_size+0x2000-1)/0x2000)*0x2000);
1559     }
1560   offset+=WriteBlobLong(image,dpx.file.user_size);
1561   value=GetDPXProperty(image,"dpx:file.filename",exception);
1562   if (value != (const char *) NULL)
1563     (void) strncpy(dpx.file.filename,value,sizeof(dpx.file.filename)-1);
1564   offset+=WriteBlob(image,sizeof(dpx.file.filename),(unsigned char *)
1565     dpx.file.filename);
1566   seconds=time((time_t *) NULL);
1567   (void) FormatMagickTime(seconds,sizeof(dpx.file.timestamp),
1568     dpx.file.timestamp);
1569   offset+=WriteBlob(image,sizeof(dpx.file.timestamp),(unsigned char *)
1570     dpx.file.timestamp);
1571   url=GetMagickHomeURL();
1572   (void) strncpy(dpx.file.creator,url,sizeof(dpx.file.creator)-1);
1573   url=DestroyString(url);
1574   value=GetDPXProperty(image,"dpx:file.creator",exception);
1575   if (value != (const char *) NULL)
1576     (void) strncpy(dpx.file.creator,value,sizeof(dpx.file.creator)-1);
1577   offset+=WriteBlob(image,sizeof(dpx.file.creator),(unsigned char *)
1578     dpx.file.creator);
1579   value=GetDPXProperty(image,"dpx:file.project",exception);
1580   if (value != (const char *) NULL)
1581     (void) strncpy(dpx.file.project,value,sizeof(dpx.file.project)-1);
1582   offset+=WriteBlob(image,sizeof(dpx.file.project),(unsigned char *)
1583     dpx.file.project);
1584   value=GetDPXProperty(image,"dpx:file.copyright",exception);
1585   if (value != (const char *) NULL)
1586     (void) strncpy(dpx.file.copyright,value,sizeof(dpx.file.copyright)-1);
1587   offset+=WriteBlob(image,sizeof(dpx.file.copyright),(unsigned char *)
1588     dpx.file.copyright);
1589   dpx.file.encrypt_key=(~0U);
1590   offset+=WriteBlobLong(image,dpx.file.encrypt_key);
1591   offset+=WriteBlob(image,sizeof(dpx.file.reserve),(unsigned char *)
1592     dpx.file.reserve);
1593   /*
1594     Write image header.
1595   */
1596   switch (image->orientation)
1597   {
1598     default:
1599     case TopLeftOrientation: dpx.image.orientation=0; break;
1600     case TopRightOrientation: dpx.image.orientation=1; break;
1601     case BottomLeftOrientation: dpx.image.orientation=2; break;
1602     case BottomRightOrientation: dpx.image.orientation=3; break;
1603     case LeftTopOrientation: dpx.image.orientation=4; break;
1604     case RightTopOrientation: dpx.image.orientation=5; break;
1605     case LeftBottomOrientation: dpx.image.orientation=6; break;
1606     case RightBottomOrientation: dpx.image.orientation=7; break;
1607   }
1608   offset+=WriteBlobShort(image,dpx.image.orientation);
1609   dpx.image.number_elements=1;
1610   offset+=WriteBlobShort(image,dpx.image.number_elements);
1611   if ((image->columns != (unsigned int) image->columns) ||
1612       (image->rows != (unsigned int) image->rows))
1613     ThrowWriterException(ImageError,"WidthOrHeightExceedsLimit");
1614   offset+=WriteBlobLong(image,(unsigned int) image->columns);
1615   offset+=WriteBlobLong(image,(unsigned int) image->rows);
1616   for (i=0; i < 8; i++)
1617   {
1618     dpx.image.image_element[i].data_sign=0U;
1619     offset+=WriteBlobLong(image,dpx.image.image_element[i].data_sign);
1620     dpx.image.image_element[i].low_data=0U;
1621     offset+=WriteBlobLong(image,dpx.image.image_element[i].low_data);
1622     dpx.image.image_element[i].low_quantity=0.0f;
1623     offset+=WriteBlobFloat(image,dpx.image.image_element[i].low_quantity);
1624     dpx.image.image_element[i].high_data=0U;
1625     offset+=WriteBlobLong(image,dpx.image.image_element[i].high_data);
1626     dpx.image.image_element[i].high_quantity=0.0f;
1627     offset+=WriteBlobFloat(image,dpx.image.image_element[i].high_quantity);
1628     dpx.image.image_element[i].descriptor=0;
1629     if (i == 0)
1630       switch (image->colorspace)
1631       {
1632         case Rec601YCbCrColorspace:
1633         case Rec709YCbCrColorspace:
1634         case YCbCrColorspace:
1635         {
1636           dpx.image.image_element[i].descriptor=CbYCr444ComponentType;
1637           if (image->alpha_trait != UndefinedPixelTrait)
1638             dpx.image.image_element[i].descriptor=CbYCrA4444ComponentType;
1639           break;
1640         }
1641         default:
1642         {
1643           dpx.image.image_element[i].descriptor=RGBComponentType;
1644           if (image->alpha_trait != UndefinedPixelTrait)
1645             dpx.image.image_element[i].descriptor=RGBAComponentType;
1646           if ((image_info->type != TrueColorType) &&
1647               (image->alpha_trait == UndefinedPixelTrait) &&
1648               (SetImageGray(image,exception) != MagickFalse))
1649             dpx.image.image_element[i].descriptor=LumaComponentType;
1650           break;
1651         }
1652       }
1653     offset+=WriteBlobByte(image,dpx.image.image_element[i].descriptor);
1654     dpx.image.image_element[i].transfer_characteristic=0;
1655     if (image->colorspace == LogColorspace)
1656       dpx.image.image_element[0].transfer_characteristic=
1657         PrintingDensityColorimetric;
1658     offset+=WriteBlobByte(image,
1659       dpx.image.image_element[i].transfer_characteristic);
1660     dpx.image.image_element[i].colorimetric=0;
1661     offset+=WriteBlobByte(image,dpx.image.image_element[i].colorimetric);
1662     dpx.image.image_element[i].bit_size=0;
1663     if (i == 0)
1664       dpx.image.image_element[i].bit_size=(unsigned char) image->depth;
1665     offset+=WriteBlobByte(image,dpx.image.image_element[i].bit_size);
1666     dpx.image.image_element[i].packing=0;
1667     if ((image->depth == 10) || (image->depth == 12))
1668       dpx.image.image_element[i].packing=1;
1669     offset+=WriteBlobShort(image,dpx.image.image_element[i].packing);
1670     dpx.image.image_element[i].encoding=0;
1671     offset+=WriteBlobShort(image,dpx.image.image_element[i].encoding);
1672     dpx.image.image_element[i].data_offset=0U;
1673     if (i == 0)
1674       dpx.image.image_element[i].data_offset=dpx.file.image_offset;
1675     offset+=WriteBlobLong(image,dpx.image.image_element[i].data_offset);
1676     dpx.image.image_element[i].end_of_line_padding=0U;
1677     offset+=WriteBlobLong(image,dpx.image.image_element[i].end_of_line_padding);
1678     offset+=WriteBlobLong(image,
1679       dpx.image.image_element[i].end_of_image_padding);
1680     offset+=WriteBlob(image,sizeof(dpx.image.image_element[i].description),
1681       (unsigned char *) dpx.image.image_element[i].description);
1682   }
1683   offset+=WriteBlob(image,sizeof(dpx.image.reserve),(unsigned char *)
1684     dpx.image.reserve);
1685   /*
1686     Write orientation header.
1687   */
1688   if ((image->rows != image->magick_rows) ||
1689       (image->columns != image->magick_columns))
1690     {
1691       /*
1692         These properties are not valid if image size changed.
1693       */
1694       (void) DeleteImageProperty(image,"dpx:orientation.x_offset");
1695       (void) DeleteImageProperty(image,"dpx:orientation.y_offset");
1696       (void) DeleteImageProperty(image,"dpx:orientation.x_center");
1697       (void) DeleteImageProperty(image,"dpx:orientation.y_center");
1698       (void) DeleteImageProperty(image,"dpx:orientation.x_size");
1699       (void) DeleteImageProperty(image,"dpx:orientation.y_size");
1700     }
1701   dpx.orientation.x_offset=0U;
1702   value=GetDPXProperty(image,"dpx:orientation.x_offset",exception);
1703   if (value != (const char *) NULL)
1704     dpx.orientation.x_offset=(unsigned int) StringToUnsignedLong(value);
1705   offset+=WriteBlobLong(image,dpx.orientation.x_offset);
1706   dpx.orientation.y_offset=0U;
1707   value=GetDPXProperty(image,"dpx:orientation.y_offset",exception);
1708   if (value != (const char *) NULL)
1709     dpx.orientation.y_offset=(unsigned int) StringToUnsignedLong(value);
1710   offset+=WriteBlobLong(image,dpx.orientation.y_offset);
1711   dpx.orientation.x_center=0.0f;
1712   value=GetDPXProperty(image,"dpx:orientation.x_center",exception);
1713   if (value != (const char *) NULL)
1714     dpx.orientation.x_center=StringToDouble(value,(char **) NULL);
1715   offset+=WriteBlobFloat(image,dpx.orientation.x_center);
1716   dpx.orientation.y_center=0.0f;
1717   value=GetDPXProperty(image,"dpx:orientation.y_center",exception);
1718   if (value != (const char *) NULL)
1719     dpx.orientation.y_center=StringToDouble(value,(char **) NULL);
1720   offset+=WriteBlobFloat(image,dpx.orientation.y_center);
1721   dpx.orientation.x_size=0U;
1722   value=GetDPXProperty(image,"dpx:orientation.x_size",exception);
1723   if (value != (const char *) NULL)
1724     dpx.orientation.x_size=(unsigned int) StringToUnsignedLong(value);
1725   offset+=WriteBlobLong(image,dpx.orientation.x_size);
1726   dpx.orientation.y_size=0U;
1727   value=GetDPXProperty(image,"dpx:orientation.y_size",exception);
1728   if (value != (const char *) NULL)
1729     dpx.orientation.y_size=(unsigned int) StringToUnsignedLong(value);
1730   offset+=WriteBlobLong(image,dpx.orientation.y_size);
1731   value=GetDPXProperty(image,"dpx:orientation.filename",exception);
1732   if (value != (const char *) NULL)
1733     (void) strncpy(dpx.orientation.filename,value,
1734       sizeof(dpx.orientation.filename)-1);
1735   offset+=WriteBlob(image,sizeof(dpx.orientation.filename),(unsigned char *)
1736     dpx.orientation.filename);
1737   offset+=WriteBlob(image,sizeof(dpx.orientation.timestamp),(unsigned char *)
1738     dpx.orientation.timestamp);
1739   value=GetDPXProperty(image,"dpx:orientation.device",exception);
1740   if (value != (const char *) NULL)
1741     (void) strncpy(dpx.orientation.device,value,
1742       sizeof(dpx.orientation.device)-1);
1743   offset+=WriteBlob(image,sizeof(dpx.orientation.device),(unsigned char *)
1744     dpx.orientation.device);
1745   value=GetDPXProperty(image,"dpx:orientation.serial",exception);
1746   if (value != (const char *) NULL)
1747     (void) strncpy(dpx.orientation.serial,value,
1748       sizeof(dpx.orientation.serial)-1);
1749   offset+=WriteBlob(image,sizeof(dpx.orientation.serial),(unsigned char *)
1750     dpx.orientation.serial);
1751   for (i=0; i < 4; i++)
1752     dpx.orientation.border[i]=0;
1753   value=GetDPXProperty(image,"dpx:orientation.border",exception);
1754   if (value != (const char *) NULL)
1755     {
1756       flags=ParseGeometry(value,&geometry_info);
1757       if ((flags & SigmaValue) == 0)
1758         geometry_info.sigma=geometry_info.rho;
1759       dpx.orientation.border[0]=(unsigned short) (geometry_info.rho+0.5);
1760       dpx.orientation.border[1]=(unsigned short) (geometry_info.sigma+0.5);
1761       dpx.orientation.border[2]=(unsigned short) (geometry_info.xi+0.5);
1762       dpx.orientation.border[3]=(unsigned short) (geometry_info.psi+0.5);
1763     }
1764   for (i=0; i < 4; i++)
1765     offset+=WriteBlobShort(image,dpx.orientation.border[i]);
1766   for (i=0; i < 2; i++)
1767     dpx.orientation.aspect_ratio[i]=0U;
1768   value=GetDPXProperty(image,"dpx:orientation.aspect_ratio",exception);
1769   if (value != (const char *) NULL)
1770     {
1771       flags=ParseGeometry(value,&geometry_info);
1772       if ((flags & SigmaValue) == 0)
1773         geometry_info.sigma=geometry_info.rho;
1774       dpx.orientation.aspect_ratio[0]=(unsigned int) (geometry_info.rho+0.5);
1775       dpx.orientation.aspect_ratio[1]=(unsigned int) (geometry_info.sigma+0.5);
1776     }
1777   for (i=0; i < 2; i++)
1778     offset+=WriteBlobLong(image,dpx.orientation.aspect_ratio[i]);
1779   offset+=WriteBlob(image,sizeof(dpx.orientation.reserve),(unsigned char *)
1780     dpx.orientation.reserve);
1781   /*
1782     Write film header.
1783   */
1784   (void) ResetMagickMemory(dpx.film.id,0,sizeof(dpx.film.id));
1785   value=GetDPXProperty(image,"dpx:film.id",exception);
1786   if (value != (const char *) NULL)
1787     (void) strncpy(dpx.film.id,value,sizeof(dpx.film.id)-1);
1788   offset+=WriteBlob(image,sizeof(dpx.film.id),(unsigned char *) dpx.film.id);
1789   (void) ResetMagickMemory(dpx.film.type,0,sizeof(dpx.film.type));
1790   value=GetDPXProperty(image,"dpx:film.type",exception);
1791   if (value != (const char *) NULL)
1792     (void) strncpy(dpx.film.type,value,sizeof(dpx.film.type)-1);
1793   offset+=WriteBlob(image,sizeof(dpx.film.type),(unsigned char *)
1794     dpx.film.type);
1795   (void) ResetMagickMemory(dpx.film.offset,0,sizeof(dpx.film.offset));
1796   value=GetDPXProperty(image,"dpx:film.offset",exception);
1797   if (value != (const char *) NULL)
1798     (void) strncpy(dpx.film.offset,value,sizeof(dpx.film.offset)-1);
1799   offset+=WriteBlob(image,sizeof(dpx.film.offset),(unsigned char *)
1800     dpx.film.offset);
1801   (void) ResetMagickMemory(dpx.film.prefix,0,sizeof(dpx.film.prefix));
1802   value=GetDPXProperty(image,"dpx:film.prefix",exception);
1803   if (value != (const char *) NULL)
1804     (void) strncpy(dpx.film.prefix,value,sizeof(dpx.film.prefix)-1);
1805   offset+=WriteBlob(image,sizeof(dpx.film.prefix),(unsigned char *)
1806     dpx.film.prefix);
1807   (void) ResetMagickMemory(dpx.film.count,0,sizeof(dpx.film.count));
1808   value=GetDPXProperty(image,"dpx:film.count",exception);
1809   if (value != (const char *) NULL)
1810     (void) strncpy(dpx.film.count,value,sizeof(dpx.film.count)-1);
1811   offset+=WriteBlob(image,sizeof(dpx.film.count),(unsigned char *)
1812     dpx.film.count);
1813   (void) ResetMagickMemory(dpx.film.format,0,sizeof(dpx.film.format));
1814   value=GetDPXProperty(image,"dpx:film.format",exception);
1815   if (value != (const char *) NULL)
1816     (void) strncpy(dpx.film.format,value,sizeof(dpx.film.format)-1);
1817   offset+=WriteBlob(image,sizeof(dpx.film.format),(unsigned char *)
1818     dpx.film.format);
1819   dpx.film.frame_position=0U;
1820   value=GetDPXProperty(image,"dpx:film.frame_position",exception);
1821   if (value != (const char *) NULL)
1822     dpx.film.frame_position=(unsigned int) StringToUnsignedLong(value);
1823   offset+=WriteBlobLong(image,dpx.film.frame_position);
1824   dpx.film.sequence_extent=0U;
1825   value=GetDPXProperty(image,"dpx:film.sequence_extent",exception);
1826   if (value != (const char *) NULL)
1827     dpx.film.sequence_extent=(unsigned int) StringToUnsignedLong(value);
1828   offset+=WriteBlobLong(image,dpx.film.sequence_extent);
1829   dpx.film.held_count=0U;
1830   value=GetDPXProperty(image,"dpx:film.held_count",exception);
1831   if (value != (const char *) NULL)
1832     dpx.film.held_count=(unsigned int) StringToUnsignedLong(value);
1833   offset+=WriteBlobLong(image,dpx.film.held_count);
1834   dpx.film.frame_rate=0.0f;
1835   value=GetDPXProperty(image,"dpx:film.frame_rate",exception);
1836   if (value != (const char *) NULL)
1837     dpx.film.frame_rate=StringToDouble(value,(char **) NULL);
1838   offset+=WriteBlobFloat(image,dpx.film.frame_rate);
1839   dpx.film.shutter_angle=0.0f;
1840   value=GetDPXProperty(image,"dpx:film.shutter_angle",exception);
1841   if (value != (const char *) NULL)
1842     dpx.film.shutter_angle=StringToDouble(value,(char **) NULL);
1843   offset+=WriteBlobFloat(image,dpx.film.shutter_angle);
1844   (void) ResetMagickMemory(dpx.film.frame_id,0,sizeof(dpx.film.frame_id));
1845   value=GetDPXProperty(image,"dpx:film.frame_id",exception);
1846   if (value != (const char *) NULL)
1847     (void) strncpy(dpx.film.frame_id,value,sizeof(dpx.film.frame_id)-1);
1848   offset+=WriteBlob(image,sizeof(dpx.film.frame_id),(unsigned char *)
1849     dpx.film.frame_id);
1850   value=GetDPXProperty(image,"dpx:film.slate",exception);
1851   if (value != (const char *) NULL)
1852     (void) strncpy(dpx.film.slate,value,sizeof(dpx.film.slate)-1);
1853   offset+=WriteBlob(image,sizeof(dpx.film.slate),(unsigned char *)
1854     dpx.film.slate);
1855   offset+=WriteBlob(image,sizeof(dpx.film.reserve),(unsigned char *)
1856     dpx.film.reserve);
1857   /*
1858     Write television header.
1859   */
1860   value=GetDPXProperty(image,"dpx:television.time.code",exception);
1861   if (value != (const char *) NULL)
1862     dpx.television.time_code=StringToTimeCode(value);
1863   offset+=WriteBlobLong(image,dpx.television.time_code);
1864   value=GetDPXProperty(image,"dpx:television.user.bits",exception);
1865   if (value != (const char *) NULL)
1866     dpx.television.user_bits=StringToTimeCode(value);
1867   offset+=WriteBlobLong(image,dpx.television.user_bits);
1868   value=GetDPXProperty(image,"dpx:television.interlace",exception);
1869   if (value != (const char *) NULL)
1870     dpx.television.interlace=(unsigned char) StringToLong(value);
1871   offset+=WriteBlobByte(image,dpx.television.interlace);
1872   value=GetDPXProperty(image,"dpx:television.field_number",exception);
1873   if (value != (const char *) NULL)
1874     dpx.television.field_number=(unsigned char) StringToLong(value);
1875   offset+=WriteBlobByte(image,dpx.television.field_number);
1876   dpx.television.video_signal=0;
1877   value=GetDPXProperty(image,"dpx:television.video_signal",exception);
1878   if (value != (const char *) NULL)
1879     dpx.television.video_signal=(unsigned char) StringToLong(value);
1880   offset+=WriteBlobByte(image,dpx.television.video_signal);
1881   dpx.television.padding=0;
1882   value=GetDPXProperty(image,"dpx:television.padding",exception);
1883   if (value != (const char *) NULL)
1884     dpx.television.padding=(unsigned char) StringToLong(value);
1885   offset+=WriteBlobByte(image,dpx.television.padding);
1886   dpx.television.horizontal_sample_rate=0.0f;
1887   value=GetDPXProperty(image,"dpx:television.horizontal_sample_rate",
1888     exception);
1889   if (value != (const char *) NULL)
1890     dpx.television.horizontal_sample_rate=StringToDouble(value,(char **) NULL);
1891   offset+=WriteBlobFloat(image,dpx.television.horizontal_sample_rate);
1892   dpx.television.vertical_sample_rate=0.0f;
1893   value=GetDPXProperty(image,"dpx:television.vertical_sample_rate",exception);
1894   if (value != (const char *) NULL)
1895     dpx.television.vertical_sample_rate=StringToDouble(value,(char **) NULL);
1896   offset+=WriteBlobFloat(image,dpx.television.vertical_sample_rate);
1897   dpx.television.frame_rate=0.0f;
1898   value=GetDPXProperty(image,"dpx:television.frame_rate",exception);
1899   if (value != (const char *) NULL)
1900     dpx.television.frame_rate=StringToDouble(value,(char **) NULL);
1901   offset+=WriteBlobFloat(image,dpx.television.frame_rate);
1902   dpx.television.time_offset=0.0f;
1903   value=GetDPXProperty(image,"dpx:television.time_offset",exception);
1904   if (value != (const char *) NULL)
1905     dpx.television.time_offset=StringToDouble(value,(char **) NULL);
1906   offset+=WriteBlobFloat(image,dpx.television.time_offset);
1907   dpx.television.gamma=0.0f;
1908   value=GetDPXProperty(image,"dpx:television.gamma",exception);
1909   if (value != (const char *) NULL)
1910     dpx.television.gamma=StringToDouble(value,(char **) NULL);
1911   offset+=WriteBlobFloat(image,dpx.television.gamma);
1912   dpx.television.black_level=0.0f;
1913   value=GetDPXProperty(image,"dpx:television.black_level",exception);
1914   if (value != (const char *) NULL)
1915     dpx.television.black_level=StringToDouble(value,(char **) NULL);
1916   offset+=WriteBlobFloat(image,dpx.television.black_level);
1917   dpx.television.black_gain=0.0f;
1918   value=GetDPXProperty(image,"dpx:television.black_gain",exception);
1919   if (value != (const char *) NULL)
1920     dpx.television.black_gain=StringToDouble(value,(char **) NULL);
1921   offset+=WriteBlobFloat(image,dpx.television.black_gain);
1922   dpx.television.break_point=0.0f;
1923   value=GetDPXProperty(image,"dpx:television.break_point",exception);
1924   if (value != (const char *) NULL)
1925     dpx.television.break_point=StringToDouble(value,(char **) NULL);
1926   offset+=WriteBlobFloat(image,dpx.television.break_point);
1927   dpx.television.white_level=0.0f;
1928   value=GetDPXProperty(image,"dpx:television.white_level",exception);
1929   if (value != (const char *) NULL)
1930     dpx.television.white_level=StringToDouble(value,(char **) NULL);
1931   offset+=WriteBlobFloat(image,dpx.television.white_level);
1932   dpx.television.integration_times=0.0f;
1933   value=GetDPXProperty(image,"dpx:television.integration_times",exception);
1934   if (value != (const char *) NULL)
1935     dpx.television.integration_times=StringToDouble(value,(char **) NULL);
1936   offset+=WriteBlobFloat(image,dpx.television.integration_times);
1937   offset+=WriteBlob(image,sizeof(dpx.television.reserve),(unsigned char *)
1938     dpx.television.reserve);
1939   /*
1940     Write user header.
1941   */
1942   value=GetDPXProperty(image,"dpx:user.id",exception);
1943   if (value != (const char *) NULL)
1944     (void) strncpy(dpx.user.id,value,sizeof(dpx.user.id)-1);
1945   offset+=WriteBlob(image,sizeof(dpx.user.id),(unsigned char *) dpx.user.id);
1946   if (profile != (StringInfo *) NULL)
1947     offset+=WriteBlob(image,GetStringInfoLength(profile),
1948       GetStringInfoDatum(profile));
1949   while (offset < (MagickOffsetType) dpx.image.image_element[0].data_offset)
1950   {
1951     count=WriteBlobByte(image,0x00);
1952     if (count != 1)
1953       {
1954         ThrowFileException(exception,FileOpenError,"UnableToWriteFile",
1955           image->filename);
1956         break;
1957       }
1958     offset+=count;
1959   }
1960   /*
1961     Convert pixel packets to DPX raster image.
1962   */
1963   quantum_info=AcquireQuantumInfo(image_info,image);
1964   SetQuantumQuantum(quantum_info,32);
1965   SetQuantumPack(quantum_info,dpx.image.image_element[0].packing == 0 ?
1966     MagickTrue : MagickFalse);
1967   quantum_type=RGBQuantum;
1968   if (image->alpha_trait != UndefinedPixelTrait)
1969     quantum_type=RGBAQuantum;
1970   if (image->colorspace == YCbCrColorspace)
1971     {
1972       quantum_type=CbYCrQuantum;
1973       if (image->alpha_trait != UndefinedPixelTrait)
1974         quantum_type=CbYCrAQuantum;
1975       if ((horizontal_factor == 2) || (vertical_factor == 2))
1976         quantum_type=CbYCrYQuantum;
1977     }
1978   extent=GetBytesPerRow(image->columns,
1979     image->alpha_trait != UndefinedPixelTrait ? 4UL : 3UL,image->depth,
1980     dpx.image.image_element[0].packing == 0 ? MagickFalse : MagickTrue);
1981   if ((image_info->type != TrueColorType) &&
1982       (image->alpha_trait == UndefinedPixelTrait) &&
1983       (SetImageGray(image,exception) != MagickFalse))
1984     {
1985       quantum_type=GrayQuantum;
1986       extent=GetBytesPerRow(image->columns,1UL,image->depth,
1987         dpx.image.image_element[0].packing == 0 ? MagickFalse : MagickTrue);
1988     }
1989   pixels=(unsigned char *) GetQuantumPixels(quantum_info);
1990   for (y=0; y < (ssize_t) image->rows; y++)
1991   {
1992     p=GetVirtualPixels(image,0,y,image->columns,1,exception);
1993     if (p == (const Quantum *) NULL)
1994       break;
1995     (void) ExportQuantumPixels(image,(CacheView *) NULL,quantum_info,
1996       quantum_type,pixels,exception);
1997     count=WriteBlob(image,extent,pixels);
1998     if (count != (ssize_t) extent)
1999       break;
2000     status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
2001       image->rows);
2002     if (status == MagickFalse)
2003       break;
2004   }
2005   quantum_info=DestroyQuantumInfo(quantum_info);
2006   (void) CloseBlob(image);
2007   return(status);
2008 }