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

   1 /*
   2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   3 %                                                                             %
   4 %                                                                             %
   5 %                                                                             %
   6 %                        M   M  PPPP   EEEEE   GGGG                           %
   7 %                        MM MM  P   P  E      G                               %
   8 %                        M M M  PPPP   EEE    G  GG                           %
   9 %                        M   M  P      E      G   G                           %
  10 %                        M   M  P      EEEEE   GGGG                           %
  11 %                                                                             %
  12 %                                                                             %
  13 %                       Read/Write MPEG Image Format                          %
  14 %                                                                             %
  15 %                              Software Design                                %
  16 %                                   Cristy                                    %
  17 %                                 July 1999                                   %
  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 /*
  39   Include declarations.
  40 */
  41 #include "MagickCore/studio.h"
  42 #include "MagickCore/blob.h"
  43 #include "MagickCore/blob-private.h"
  44 #include "MagickCore/constitute.h"
  45 #include "MagickCore/delegate.h"
  46 #include "MagickCore/exception.h"
  47 #include "MagickCore/exception-private.h"
  48 #include "MagickCore/geometry.h"
  49 #include "MagickCore/image.h"
  50 #include "MagickCore/image-private.h"
  51 #include "MagickCore/layer.h"
  52 #include "MagickCore/list.h"
  53 #include "MagickCore/log.h"
  54 #include "MagickCore/magick.h"
  55 #include "MagickCore/memory_.h"
  56 #include "MagickCore/resource_.h"
  57 #include "MagickCore/quantum-private.h"
  58 #include "MagickCore/static.h"
  59 #include "MagickCore/string_.h"
  60 #include "MagickCore/module.h"
  61 #include "MagickCore/transform.h"
  62 #include "MagickCore/utility.h"
  63 #include "MagickCore/utility-private.h"
  64 \f
  65 /*
  66   Forward declarations.
  67 */
  68 static MagickBooleanType
  69   WriteMPEGImage(const ImageInfo *,Image *,ExceptionInfo *);
  70 \f
  71 /*
  72 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  73 %                                                                             %
  74 %                                                                             %
  75 %                                                                             %
  76 %   I s A V I                                                                 %
  77 %                                                                             %
  78 %                                                                             %
  79 %                                                                             %
  80 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  81 %
  82 %  IsAVI() returns MagickTrue if the image format type, identified by the
  83 %  magick string, is Audio/Video Interleaved file format.
  84 %
  85 %  The format of the IsAVI method is:
  86 %
  87 %      size_t IsAVI(const unsigned char *magick,const size_t length)
  88 %
  89 %  A description of each parameter follows:
  90 %
  91 %    o magick: compare image format pattern against these bytes.
  92 %
  93 %    o length: Specifies the length of the magick string.
  94 %
  95 */
  96 static MagickBooleanType IsAVI(const unsigned char *magick,const size_t length)
  97 {
  98   if (length < 4)
  99     return(MagickFalse);
 100   if (memcmp(magick,"RIFF",4) == 0)
 101     return(MagickTrue);
 102   return(MagickFalse);
 103 }
 104 \f
 105 /*
 106 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 107 %                                                                             %
 108 %                                                                             %
 109 %                                                                             %
 110 %   I s M P E G                                                               %
 111 %                                                                             %
 112 %                                                                             %
 113 %                                                                             %
 114 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 115 %
 116 %  IsMPEG() returns MagickTrue if the image format type, identified by the
 117 %  magick string, is MPEG.
 118 %
 119 %  The format of the IsMPEG method is:
 120 %
 121 %      MagickBooleanType IsMPEG(const unsigned char *magick,const size_t length)
 122 %
 123 %  A description of each parameter follows:
 124 %
 125 %    o magick: compare image format pattern against these bytes.
 126 %
 127 %    o length: Specifies the length of the magick string.
 128 %
 129 */
 130 static MagickBooleanType IsMPEG(const unsigned char *magick,const size_t length)
 131 {
 132   if (length < 4)
 133     return(MagickFalse);
 134   if (memcmp(magick,"\000\000\001\263",4) == 0)
 135     return(MagickTrue);
 136   return(MagickFalse);
 137 }
 138 \f
 139 /*
 140 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 141 %                                                                             %
 142 %                                                                             %
 143 %                                                                             %
 144 %   R e a d M P E G I m a g e                                                 %
 145 %                                                                             %
 146 %                                                                             %
 147 %                                                                             %
 148 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 149 %
 150 %  ReadMPEGImage() reads an binary file in the MPEG video stream format
 151 %  and returns it.  It allocates the memory necessary for the new Image
 152 %  structure and returns a pointer to the new image.
 153 %
 154 %  The format of the ReadMPEGImage method is:
 155 %
 156 %      Image *ReadMPEGImage(const ImageInfo *image_info,
 157 %        ExceptionInfo *exception)
 158 %
 159 %  A description of each parameter follows:
 160 %
 161 %    o image_info: the image info.
 162 %
 163 %    o exception: return any errors or warnings in this structure.
 164 %
 165 */
 166 static Image *ReadMPEGImage(const ImageInfo *image_info,
 167   ExceptionInfo *exception)
 168 {
 169 #define ReadMPEGIntermediateFormat "pam"
 170
 171   Image
 172     *image,
 173     *images;
 174
 175   ImageInfo
 176     *read_info;
 177
 178   MagickBooleanType
 179     status;
 180
 181   /*
 182     Open image file.
 183   */
 184   assert(image_info != (const ImageInfo *) NULL);
 185   assert(image_info->signature == MagickCoreSignature);
 186   if (image_info->debug != MagickFalse)
 187     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
 188       image_info->filename);
 189   assert(exception != (ExceptionInfo *) NULL);
 190   assert(exception->signature == MagickCoreSignature);
 191   image=AcquireImage(image_info,exception);
 192   status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
 193   if (status == MagickFalse)
 194     {
 195       image=DestroyImageList(image);
 196       return((Image *) NULL);
 197     }
 198   (void) CloseBlob(image);
 199   (void) DestroyImageList(image);
 200   /*
 201     Convert MPEG to PAM with delegate.
 202   */
 203   read_info=CloneImageInfo(image_info);
 204   image=AcquireImage(image_info,exception);
 205   (void) InvokeDelegate(read_info,image,"mpeg:decode",(char *) NULL,exception);
 206   image=DestroyImage(image);
 207   (void) FormatLocaleString(read_info->filename,MagickPathExtent,"%s.%s",
 208     read_info->unique,ReadMPEGIntermediateFormat);
 209   images=ReadImage(read_info,exception);
 210   (void) RelinquishUniqueFileResource(read_info->filename);
 211   read_info=DestroyImageInfo(read_info);
 212   return(images);
 213 }
 214 \f
 215 /*
 216 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 217 %                                                                             %
 218 %                                                                             %
 219 %                                                                             %
 220 %   R e g i s t e r M P E G I m a g e                                         %
 221 %                                                                             %
 222 %                                                                             %
 223 %                                                                             %
 224 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 225 %
 226 %  RegisterMPEGImage() adds attributes for the MPEG image format to
 227 %  the list of supported formats.  The attributes include the image format
 228 %  tag, a method to read and/or write the format, whether the format
 229 %  supports the saving of more than one frame to the same file or blob,
 230 %  whether the format supports native in-memory I/O, and a brief
 231 %  description of the format.
 232 %
 233 %  The format of the RegisterMPEGImage method is:
 234 %
 235 %      size_t RegisterMPEGImage(void)
 236 %
 237 */
 238 ModuleExport size_t RegisterMPEGImage(void)
 239 {
 240   MagickInfo
 241     *entry;
 242
 243   entry=AcquireMagickInfo("MPEG","AVI","Microsoft Audio/Visual Interleaved");
 244   entry->decoder=(DecodeImageHandler *) ReadMPEGImage;
 245   entry->magick=(IsImageFormatHandler *) IsAVI;
 246   entry->flags^=CoderBlobSupportFlag;
 247   (void) RegisterMagickInfo(entry);
 248   entry=AcquireMagickInfo("MPEG","MKV","Multimedia Container");
 249   entry->decoder=(DecodeImageHandler *) ReadMPEGImage;
 250   entry->encoder=(EncodeImageHandler *) WriteMPEGImage;
 251   entry->magick=(IsImageFormatHandler *) IsMPEG;
 252   entry->flags^=CoderBlobSupportFlag;
 253   (void) RegisterMagickInfo(entry);
 254   entry=AcquireMagickInfo("MPEG","MOV","MPEG Video Stream");
 255   entry->decoder=(DecodeImageHandler *) ReadMPEGImage;
 256   entry->encoder=(EncodeImageHandler *) WriteMPEGImage;
 257   entry->magick=(IsImageFormatHandler *) IsMPEG;
 258   entry->flags^=CoderBlobSupportFlag;
 259   (void) RegisterMagickInfo(entry);
 260   entry=AcquireMagickInfo("MPEG","MPEG","MPEG Video Stream");
 261   entry->decoder=(DecodeImageHandler *) ReadMPEGImage;
 262   entry->encoder=(EncodeImageHandler *) WriteMPEGImage;
 263   entry->magick=(IsImageFormatHandler *) IsMPEG;
 264   entry->flags^=CoderBlobSupportFlag;
 265   (void) RegisterMagickInfo(entry);
 266   entry=AcquireMagickInfo("MPEG","MPG","MPEG Video Stream");
 267   entry->decoder=(DecodeImageHandler *) ReadMPEGImage;
 268   entry->encoder=(EncodeImageHandler *) WriteMPEGImage;
 269   entry->magick=(IsImageFormatHandler *) IsMPEG;
 270   entry->flags^=CoderBlobSupportFlag;
 271   (void) RegisterMagickInfo(entry);
 272   entry=AcquireMagickInfo("MPEG","MP4","MPEG-4 Video Stream");
 273   entry->decoder=(DecodeImageHandler *) ReadMPEGImage;
 274   entry->encoder=(EncodeImageHandler *) WriteMPEGImage;
 275   entry->magick=(IsImageFormatHandler *) IsMPEG;
 276   entry->flags^=CoderBlobSupportFlag;
 277   (void) RegisterMagickInfo(entry);
 278   entry=AcquireMagickInfo("MPEG","M2V","MPEG Video Stream");
 279   entry->decoder=(DecodeImageHandler *) ReadMPEGImage;
 280   entry->encoder=(EncodeImageHandler *) WriteMPEGImage;
 281   entry->magick=(IsImageFormatHandler *) IsMPEG;
 282   entry->flags^=CoderBlobSupportFlag;
 283   (void) RegisterMagickInfo(entry);
 284   entry=AcquireMagickInfo("MPEG","M4V","Raw MPEG-4 Video");
 285   entry->decoder=(DecodeImageHandler *) ReadMPEGImage;
 286   entry->encoder=(EncodeImageHandler *) WriteMPEGImage;
 287   entry->magick=(IsImageFormatHandler *) IsMPEG;
 288   entry->flags^=CoderBlobSupportFlag;
 289   (void) RegisterMagickInfo(entry);
 290   entry=AcquireMagickInfo("MPEG","WMV","Windows Media Video");
 291   entry->decoder=(DecodeImageHandler *) ReadMPEGImage;
 292   entry->encoder=(EncodeImageHandler *) WriteMPEGImage;
 293   entry->magick=(IsImageFormatHandler *) IsMPEG;
 294   entry->flags^=CoderBlobSupportFlag;
 295   (void) RegisterMagickInfo(entry);
 296   return(MagickImageCoderSignature);
 297 }
 298 \f
 299 /*
 300 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 301 %                                                                             %
 302 %                                                                             %
 303 %                                                                             %
 304 %   U n r e g i s t e r M P E G I m a g e                                     %
 305 %                                                                             %
 306 %                                                                             %
 307 %                                                                             %
 308 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 309 %
 310 %  UnregisterMPEGImage() removes format registrations made by the
 311 %  BIM module from the list of supported formats.
 312 %
 313 %  The format of the UnregisterBIMImage method is:
 314 %
 315 %      UnregisterMPEGImage(void)
 316 %
 317 */
 318 ModuleExport void UnregisterMPEGImage(void)
 319 {
 320   (void) UnregisterMagickInfo("WMV");
 321   (void) UnregisterMagickInfo("MOV");
 322   (void) UnregisterMagickInfo("M4V");
 323   (void) UnregisterMagickInfo("M2V");
 324   (void) UnregisterMagickInfo("MP4");
 325   (void) UnregisterMagickInfo("MPG");
 326   (void) UnregisterMagickInfo("MPEG");
 327   (void) UnregisterMagickInfo("MKV");
 328   (void) UnregisterMagickInfo("AVI");
 329 }
 330 \f
 331 /*
 332 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 333 %                                                                             %
 334 %                                                                             %
 335 %                                                                             %
 336 %   W r i t e M P E G I m a g e                                               %
 337 %                                                                             %
 338 %                                                                             %
 339 %                                                                             %
 340 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 341 %
 342 %  WriteMPEGImage() writes an image to a file in MPEG video stream format.
 343 %  Lawrence Livermore National Laboratory (LLNL) contributed code to adjust
 344 %  the MPEG parameters to correspond to the compression quality setting.
 345 %
 346 %  The format of the WriteMPEGImage method is:
 347 %
 348 %      MagickBooleanType WriteMPEGImage(const ImageInfo *image_info,
 349 %        Image *image,ExceptionInfo *exception)
 350 %
 351 %  A description of each parameter follows.
 352 %
 353 %    o image_info: the image info.
 354 %
 355 %    o image:  The image.
 356 %
 357 %    o exception: return any errors or warnings in this structure.
 358 %
 359 */
 360 static MagickBooleanType CopyDelegateFile(const char *source,
 361   const char *destination)
 362 {
 363   int
 364     destination_file,
 365     source_file;
 366
 367   MagickBooleanType
 368     status;
 369
 370   register size_t
 371     i;
 372
 373   size_t
 374     length,
 375     quantum;
 376
 377   ssize_t
 378     count;
 379
 380   struct stat
 381     attributes;
 382
 383   unsigned char
 384     *buffer;
 385
 386   /*
 387     Return if destination file already exists and is not empty.
 388   */
 389   assert(source != (const char *) NULL);
 390   assert(destination != (char *) NULL);
 391   status=GetPathAttributes(destination,&attributes);
 392   if ((status != MagickFalse) && (attributes.st_size > 0))
 393     return(MagickTrue);
 394   /*
 395     Copy source file to destination.
 396   */
 397   destination_file=open_utf8(destination,O_WRONLY | O_BINARY | O_CREAT,S_MODE);
 398   if (destination_file == -1)
 399     return(MagickFalse);
 400   source_file=open_utf8(source,O_RDONLY | O_BINARY,0);
 401   if (source_file == -1)
 402     {
 403       (void) close(destination_file);
 404       return(MagickFalse);
 405     }
 406   quantum=(size_t) MagickMaxBufferExtent;
 407   if ((fstat(source_file,&attributes) == 0) && (attributes.st_size > 0))
 408     quantum=(size_t) MagickMin((double) attributes.st_size,
 409       MagickMaxBufferExtent);
 410   buffer=(unsigned char *) AcquireQuantumMemory(quantum,sizeof(*buffer));
 411   if (buffer == (unsigned char *) NULL)
 412     {
 413       (void) close(source_file);
 414       (void) close(destination_file);
 415       return(MagickFalse);
 416     }
 417   length=0;
 418   for (i=0; ; i+=count)
 419   {
 420     count=(ssize_t) read(source_file,buffer,quantum);
 421     if (count <= 0)
 422       break;
 423     length=(size_t) count;
 424     count=(ssize_t) write(destination_file,buffer,length);
 425     if ((size_t) count != length)
 426       break;
 427   }
 428   (void) close(destination_file);
 429   (void) close(source_file);
 430   buffer=(unsigned char *) RelinquishMagickMemory(buffer);
 431   return(i != 0 ? MagickTrue : MagickFalse);
 432 }
 433
 434 static MagickBooleanType WriteMPEGImage(const ImageInfo *image_info,
 435   Image *image,ExceptionInfo *exception)
 436 {
 437 #define WriteMPEGIntermediateFormat "jpg"
 438
 439   char
 440     basename[MagickPathExtent],
 441     filename[MagickPathExtent];
 442
 443   double
 444     delay;
 445
 446   Image
 447     *coalesce_image;
 448
 449   ImageInfo
 450     *write_info;
 451
 452   int
 453     file;
 454
 455   MagickBooleanType
 456     status;
 457
 458   register Image
 459     *p;
 460
 461   register ssize_t
 462     i;
 463
 464   size_t
 465     count,
 466     length,
 467     scene;
 468
 469   unsigned char
 470     *blob;
 471
 472   /*
 473     Open output image file.
 474   */
 475   assert(image_info != (const ImageInfo *) NULL);
 476   assert(image_info->signature == MagickCoreSignature);
 477   assert(image != (Image *) NULL);
 478   assert(image->signature == MagickCoreSignature);
 479   if (image->debug != MagickFalse)
 480     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
 481   assert(exception != (ExceptionInfo *) NULL);
 482   assert(exception->signature == MagickCoreSignature);
 483   status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
 484   if (status == MagickFalse)
 485     return(status);
 486   (void) CloseBlob(image);
 487   /*
 488     Write intermediate files.
 489   */
 490   coalesce_image=CoalesceImages(image,exception);
 491   if (coalesce_image == (Image *) NULL)
 492     return(MagickFalse);
 493   file=AcquireUniqueFileResource(basename);
 494   if (file != -1)
 495     file=close(file)-1;
 496   (void) FormatLocaleString(coalesce_image->filename,MagickPathExtent,"%s",
 497     basename);
 498   count=0;
 499   write_info=CloneImageInfo(image_info);
 500   *write_info->magick='\0';
 501   for (p=coalesce_image; p != (Image *) NULL; p=GetNextImageInList(p))
 502   {
 503     char
 504       previous_image[MagickPathExtent];
 505
 506     blob=(unsigned char *) NULL;
 507     length=0;
 508     scene=p->scene;
 509     delay=100.0*p->delay/MagickMax(1.0*p->ticks_per_second,1.0);
 510     for (i=0; i < (ssize_t) MagickMax((1.0*delay+1.0)/3.0,1.0); i++)
 511     {
 512       p->scene=count;
 513       count++;
 514       status=MagickFalse;
 515       switch (i)
 516       {
 517         case 0:
 518         {
 519           Image
 520             *frame;
 521
 522           (void) FormatLocaleString(p->filename,MagickPathExtent,"%s%.20g.%s",
 523             basename,(double) p->scene,WriteMPEGIntermediateFormat);
 524           (void) FormatLocaleString(filename,MagickPathExtent,"%s%.20g.%s",
 525             basename,(double) p->scene,WriteMPEGIntermediateFormat);
 526           (void) FormatLocaleString(previous_image,MagickPathExtent,
 527             "%s%.20g.%s",basename,(double) p->scene,
 528             WriteMPEGIntermediateFormat);
 529           frame=CloneImage(p,0,0,MagickTrue,exception);
 530           if (frame == (Image *) NULL)
 531             break;
 532           status=WriteImage(write_info,frame,exception);
 533           frame=DestroyImage(frame);
 534           break;
 535         }
 536         case 1:
 537         {
 538           blob=(unsigned char *) FileToBlob(previous_image,~0UL,&length,
 539             exception);
 540         }
 541         default:
 542         {
 543           (void) FormatLocaleString(filename,MagickPathExtent,"%s%.20g.%s",
 544             basename,(double) p->scene,WriteMPEGIntermediateFormat);
 545           if (length > 0)
 546             status=BlobToFile(filename,blob,length,exception);
 547           break;
 548         }
 549       }
 550       if (image->debug != MagickFalse)
 551         {
 552           if (status != MagickFalse)
 553             (void) LogMagickEvent(CoderEvent,GetMagickModule(),
 554               "%.20g. Wrote %s file for scene %.20g:",(double) i,
 555               WriteMPEGIntermediateFormat,(double) p->scene);
 556           else
 557             (void) LogMagickEvent(CoderEvent,GetMagickModule(),
 558               "%.20g. Failed to write %s file for scene %.20g:",(double) i,
 559               WriteMPEGIntermediateFormat,(double) p->scene);
 560           (void) LogMagickEvent(CoderEvent,GetMagickModule(),"%s",filename);
 561         }
 562     }
 563     p->scene=scene;
 564     if (blob != (unsigned char *) NULL)
 565       blob=(unsigned char *) RelinquishMagickMemory(blob);
 566     if (status == MagickFalse)
 567       break;
 568   }
 569   /*
 570     Convert JPEG to MPEG.
 571   */
 572   (void) CopyMagickString(coalesce_image->magick_filename,basename,
 573     MagickPathExtent);
 574   (void) CopyMagickString(coalesce_image->filename,basename,MagickPathExtent);
 575   GetPathComponent(image_info->filename,ExtensionPath,coalesce_image->magick);
 576   if (*coalesce_image->magick == '\0')
 577     (void) CopyMagickString(coalesce_image->magick,image->magick,MagickPathExtent);
 578   status=InvokeDelegate(write_info,coalesce_image,(char *) NULL,"mpeg:encode",
 579     exception);
 580   (void) FormatLocaleString(write_info->filename,MagickPathExtent,"%s.%s",
 581     write_info->unique,coalesce_image->magick);
 582   status=CopyDelegateFile(write_info->filename,image->filename);
 583   (void) RelinquishUniqueFileResource(write_info->filename);
 584   write_info=DestroyImageInfo(write_info);
 585   /*
 586     Relinquish resources.
 587   */
 588   count=0;
 589   for (p=coalesce_image; p != (Image *) NULL; p=GetNextImageInList(p))
 590   {
 591     delay=100.0*p->delay/MagickMax(1.0*p->ticks_per_second,1.0);
 592     for (i=0; i < (ssize_t) MagickMax((1.0*delay+1.0)/3.0,1.0); i++)
 593     {
 594       (void) FormatLocaleString(p->filename,MagickPathExtent,"%s%.20g.%s",
 595         basename,(double) count++,WriteMPEGIntermediateFormat);
 596       (void) RelinquishUniqueFileResource(p->filename);
 597     }
 598     (void) CopyMagickString(p->filename,image_info->filename,MagickPathExtent);
 599   }
 600   (void) RelinquishUniqueFileResource(basename);
 601   coalesce_image=DestroyImageList(coalesce_image);
 602   if (image->debug != MagickFalse)
 603     (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit");
 604   return(status);
 605 }