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 %                                John Cristy                                  %
  17 %                                 July 1999                                   %
  18 %                                                                             %
  19 %                                                                             %
  20 %  Copyright 1999-2011 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 == MagickSignature);
 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 == MagickSignature);
 191   image=AcquireImage(image_info);
 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);
 205   (void) InvokeDelegate(read_info,image,"mpeg:decode",(char *) NULL,exception);
 206   image=DestroyImage(image);
 207   (void) FormatLocaleString(read_info->filename,MaxTextExtent,"%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=SetMagickInfo("AVI");
 244   entry->decoder=(DecodeImageHandler *) ReadMPEGImage;
 245   entry->magick=(IsImageFormatHandler *) IsAVI;
 246   entry->blob_support=MagickFalse;
 247   entry->description=ConstantString("Microsoft Audio/Visual Interleaved");
 248   entry->module=ConstantString("MPEG");
 249   (void) RegisterMagickInfo(entry);
 250   entry=SetMagickInfo("MOV");
 251   entry->decoder=(DecodeImageHandler *) ReadMPEGImage;
 252   entry->encoder=(EncodeImageHandler *) WriteMPEGImage;
 253   entry->magick=(IsImageFormatHandler *) IsMPEG;
 254   entry->blob_support=MagickFalse;
 255   entry->description=ConstantString("MPEG Video Stream");
 256   entry->module=ConstantString("MPEG");
 257   (void) RegisterMagickInfo(entry);
 258   entry=SetMagickInfo("MPEG");
 259   entry->decoder=(DecodeImageHandler *) ReadMPEGImage;
 260   entry->encoder=(EncodeImageHandler *) WriteMPEGImage;
 261   entry->magick=(IsImageFormatHandler *) IsMPEG;
 262   entry->blob_support=MagickFalse;
 263   entry->description=ConstantString("MPEG Video Stream");
 264   entry->module=ConstantString("MPEG");
 265   (void) RegisterMagickInfo(entry);
 266   entry=SetMagickInfo("MPG");
 267   entry->decoder=(DecodeImageHandler *) ReadMPEGImage;
 268   entry->encoder=(EncodeImageHandler *) WriteMPEGImage;
 269   entry->magick=(IsImageFormatHandler *) IsMPEG;
 270   entry->blob_support=MagickFalse;
 271   entry->description=ConstantString("MPEG Video Stream");
 272   entry->module=ConstantString("MPEG");
 273   (void) RegisterMagickInfo(entry);
 274   entry=SetMagickInfo("MP4");
 275   entry->decoder=(DecodeImageHandler *) ReadMPEGImage;
 276   entry->encoder=(EncodeImageHandler *) WriteMPEGImage;
 277   entry->magick=(IsImageFormatHandler *) IsMPEG;
 278   entry->blob_support=MagickFalse;
 279   entry->description=ConstantString("MPEG-4 Video Stream");
 280   entry->module=ConstantString("MPEG");
 281   (void) RegisterMagickInfo(entry);
 282   entry=SetMagickInfo("M2V");
 283   entry->decoder=(DecodeImageHandler *) ReadMPEGImage;
 284   entry->encoder=(EncodeImageHandler *) WriteMPEGImage;
 285   entry->magick=(IsImageFormatHandler *) IsMPEG;
 286   entry->blob_support=MagickFalse;
 287   entry->description=ConstantString("MPEG Video Stream");
 288   entry->module=ConstantString("MPEG");
 289   (void) RegisterMagickInfo(entry);
 290   entry=SetMagickInfo("M4V");
 291   entry->decoder=(DecodeImageHandler *) ReadMPEGImage;
 292   entry->encoder=(EncodeImageHandler *) WriteMPEGImage;
 293   entry->magick=(IsImageFormatHandler *) IsMPEG;
 294   entry->blob_support=MagickFalse;
 295   entry->description=ConstantString("Raw MPEG-4 Video");
 296   entry->module=ConstantString("MPEG");
 297   (void) RegisterMagickInfo(entry);
 298   entry=SetMagickInfo("WMV");
 299   entry->decoder=(DecodeImageHandler *) ReadMPEGImage;
 300   entry->encoder=(EncodeImageHandler *) WriteMPEGImage;
 301   entry->magick=(IsImageFormatHandler *) IsMPEG;
 302   entry->blob_support=MagickFalse;
 303   entry->description=ConstantString("Windows Media Video");
 304   entry->module=ConstantString("MPEG");
 305   (void) RegisterMagickInfo(entry);
 306   return(MagickImageCoderSignature);
 307 }
 308 \f
 309 /*
 310 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 311 %                                                                             %
 312 %                                                                             %
 313 %                                                                             %
 314 %   U n r e g i s t e r M P E G I m a g e                                     %
 315 %                                                                             %
 316 %                                                                             %
 317 %                                                                             %
 318 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 319 %
 320 %  UnregisterMPEGImage() removes format registrations made by the
 321 %  BIM module from the list of supported formats.
 322 %
 323 %  The format of the UnregisterBIMImage method is:
 324 %
 325 %      UnregisterMPEGImage(void)
 326 %
 327 */
 328 ModuleExport void UnregisterMPEGImage(void)
 329 {
 330   (void) UnregisterMagickInfo("WMV");
 331   (void) UnregisterMagickInfo("M4V");
 332   (void) UnregisterMagickInfo("M2V");
 333   (void) UnregisterMagickInfo("MP4");
 334   (void) UnregisterMagickInfo("MPG");
 335   (void) UnregisterMagickInfo("MPEG");
 336   (void) UnregisterMagickInfo("MOV");
 337   (void) UnregisterMagickInfo("AVI");
 338 }
 339 \f
 340 /*
 341 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 342 %                                                                             %
 343 %                                                                             %
 344 %                                                                             %
 345 %   W r i t e M P E G I m a g e                                               %
 346 %                                                                             %
 347 %                                                                             %
 348 %                                                                             %
 349 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 350 %
 351 %  WriteMPEGImage() writes an image to a file in MPEG video stream format.
 352 %  Lawrence Livermore National Laboratory (LLNL) contributed code to adjust
 353 %  the MPEG parameters to correspond to the compression quality setting.
 354 %
 355 %  The format of the WriteMPEGImage method is:
 356 %
 357 %      MagickBooleanType WriteMPEGImage(const ImageInfo *image_info,
 358 %        Image *image,ExceptionInfo *exception)
 359 %
 360 %  A description of each parameter follows.
 361 %
 362 %    o image_info: the image info.
 363 %
 364 %    o image:  The image.
 365 %
 366 %    o exception: return any errors or warnings in this structure.
 367 %
 368 */
 369
 370 static inline double MagickMax(const double x,const double y)
 371 {
 372   if (x > y)
 373     return(x);
 374   return(y);
 375 }
 376
 377 static inline double MagickMin(const double x,const double y)
 378 {
 379   if (x < y)
 380     return(x);
 381   return(y);
 382 }
 383
 384 static MagickBooleanType CopyDelegateFile(const char *source,
 385   const char *destination)
 386 {
 387   int
 388     destination_file,
 389     source_file;
 390
 391   MagickBooleanType
 392     status;
 393
 394   register size_t
 395     i;
 396
 397   size_t
 398     length,
 399     quantum;
 400
 401   ssize_t
 402     count;
 403
 404   struct stat
 405     attributes;
 406
 407   unsigned char
 408     *buffer;
 409
 410   /*
 411     Return if destination file already exists and is not empty.
 412   */
 413   assert(source != (const char *) NULL);
 414   assert(destination != (char *) NULL);
 415   status=GetPathAttributes(destination,&attributes);
 416   if ((status != MagickFalse) && (attributes.st_size != 0))
 417     return(MagickTrue);
 418   /*
 419     Copy source file to destination.
 420   */
 421   destination_file=open_utf8(destination,O_WRONLY | O_BINARY | O_CREAT,S_MODE);
 422   if (destination_file == -1)
 423     return(MagickFalse);
 424   source_file=open_utf8(source,O_RDONLY | O_BINARY,0);
 425   if (source_file == -1)
 426     {
 427       (void) close(destination_file);
 428       return(MagickFalse);
 429     }
 430   quantum=(size_t) MagickMaxBufferExtent;
 431   if ((fstat(source_file,&attributes) == 0) && (attributes.st_size != 0))
 432     quantum=(size_t) MagickMin((double) attributes.st_size,
 433       MagickMaxBufferExtent);
 434   buffer=(unsigned char *) AcquireQuantumMemory(quantum,sizeof(*buffer));
 435   if (buffer == (unsigned char *) NULL)
 436     {
 437       (void) close(source_file);
 438       (void) close(destination_file);
 439       return(MagickFalse);
 440     }
 441   length=0;
 442   for (i=0; ; i+=count)
 443   {
 444     count=(ssize_t) read(source_file,buffer,quantum);
 445     if (count <= 0)
 446       break;
 447     length=(size_t) count;
 448     count=(ssize_t) write(destination_file,buffer,length);
 449     if ((size_t) count != length)
 450       break;
 451   }
 452   (void) close(destination_file);
 453   (void) close(source_file);
 454   buffer=(unsigned char *) RelinquishMagickMemory(buffer);
 455   return(i != 0 ? MagickTrue : MagickFalse);
 456 }
 457
 458 static MagickBooleanType WriteMPEGImage(const ImageInfo *image_info,
 459   Image *image,ExceptionInfo *exception)
 460 {
 461 #define WriteMPEGIntermediateFormat "jpg"
 462
 463   char
 464     basename[MaxTextExtent],
 465     filename[MaxTextExtent];
 466
 467   double
 468     delay;
 469
 470   Image
 471     *coalesce_image;
 472
 473   ImageInfo
 474     *write_info;
 475
 476   int
 477     file;
 478
 479   MagickBooleanType
 480     status;
 481
 482   register Image
 483     *p;
 484
 485   register ssize_t
 486     i;
 487
 488   size_t
 489     count,
 490     length,
 491     scene;
 492
 493   unsigned char
 494     *blob;
 495
 496   /*
 497     Open output image file.
 498   */
 499   assert(image_info != (const ImageInfo *) NULL);
 500   assert(image_info->signature == MagickSignature);
 501   assert(image != (Image *) NULL);
 502   assert(image->signature == MagickSignature);
 503   if (image->debug != MagickFalse)
 504     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
 505   assert(exception != (ExceptionInfo *) NULL);
 506   assert(exception->signature == MagickSignature);
 507   status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
 508   if (status == MagickFalse)
 509     return(status);
 510   (void) CloseBlob(image);
 511   /*
 512     Write intermediate files.
 513   */
 514   coalesce_image=CoalesceImages(image,exception);
 515   if (coalesce_image == (Image *) NULL)
 516     return(MagickFalse);
 517   file=AcquireUniqueFileResource(basename);
 518   if (file != -1)
 519     file=close(file)-1;
 520   (void) FormatLocaleString(coalesce_image->filename,MaxTextExtent,"%s",
 521     basename);
 522   count=0;
 523   write_info=CloneImageInfo(image_info);
 524   for (p=coalesce_image; p != (Image *) NULL; p=GetNextImageInList(p))
 525   {
 526     char
 527       previous_image[MaxTextExtent];
 528
 529     blob=(unsigned char *) NULL;
 530     length=0;
 531     scene=p->scene;
 532     delay=100.0*p->delay/MagickMax(1.0*p->ticks_per_second,1.0);
 533     for (i=0; i < (ssize_t) MagickMax((1.0*delay+1.0)/3.0,1.0); i++)
 534     {
 535       p->scene=count;
 536       count++;
 537       status=MagickFalse;
 538       switch (i)
 539       {
 540         case 0:
 541         {
 542           Image
 543             *frame;
 544
 545           (void) FormatLocaleString(p->filename,MaxTextExtent,"%s%.20g.%s",
 546             basename,(double) p->scene,WriteMPEGIntermediateFormat);
 547           (void) FormatLocaleString(filename,MaxTextExtent,"%s%.20g.%s",
 548             basename,(double) p->scene,WriteMPEGIntermediateFormat);
 549           (void) FormatLocaleString(previous_image,MaxTextExtent,
 550             "%s%.20g.%s",basename,(double) p->scene,
 551             WriteMPEGIntermediateFormat);
 552           frame=CloneImage(p,0,0,MagickTrue,exception);
 553           if (frame == (Image *) NULL)
 554             break;
 555           status=WriteImage(write_info,frame,exception);
 556           frame=DestroyImage(frame);
 557           break;
 558         }
 559         case 1:
 560         {
 561           blob=(unsigned char *) FileToBlob(previous_image,~0UL,&length,
 562             exception);
 563         }
 564         default:
 565         {
 566           (void) FormatLocaleString(filename,MaxTextExtent,"%s%.20g.%s",
 567             basename,(double) p->scene,WriteMPEGIntermediateFormat);
 568           if (length > 0)
 569             status=BlobToFile(filename,blob,length,exception);
 570           break;
 571         }
 572       }
 573       if (image->debug != MagickFalse)
 574         {
 575           if (status != MagickFalse)
 576             (void) LogMagickEvent(CoderEvent,GetMagickModule(),
 577               "%.20g. Wrote %s file for scene %.20g:",(double) i,
 578               WriteMPEGIntermediateFormat,(double) p->scene);
 579           else
 580             (void) LogMagickEvent(CoderEvent,GetMagickModule(),
 581               "%.20g. Failed to write %s file for scene %.20g:",(double) i,
 582               WriteMPEGIntermediateFormat,(double) p->scene);
 583           (void) LogMagickEvent(CoderEvent,GetMagickModule(),"%s",filename);
 584         }
 585     }
 586     p->scene=scene;
 587     if (blob != (unsigned char *) NULL)
 588       blob=(unsigned char *) RelinquishMagickMemory(blob);
 589     if (status == MagickFalse)
 590       break;
 591   }
 592   /*
 593     Convert JPEG to MPEG.
 594   */
 595   (void) CopyMagickString(coalesce_image->magick_filename,basename,
 596     MaxTextExtent);
 597   (void) CopyMagickString(coalesce_image->filename,basename,MaxTextExtent);
 598   GetPathComponent(image_info->filename,ExtensionPath,coalesce_image->magick);
 599   if (*coalesce_image->magick == '\0')
 600     (void) CopyMagickString(coalesce_image->magick,image->magick,MaxTextExtent);
 601   status=InvokeDelegate(write_info,coalesce_image,(char *) NULL,"mpeg:encode",
 602     exception);
 603   (void) FormatLocaleString(write_info->filename,MaxTextExtent,"%s.%s",
 604     write_info->unique,coalesce_image->magick);
 605   status=CopyDelegateFile(write_info->filename,image->filename);
 606   (void) RelinquishUniqueFileResource(write_info->filename);
 607   write_info=DestroyImageInfo(write_info);
 608   /*
 609     Relinquish resources.
 610   */
 611   count=0;
 612   for (p=coalesce_image; p != (Image *) NULL; p=GetNextImageInList(p))
 613   {
 614     delay=100.0*p->delay/MagickMax(1.0*p->ticks_per_second,1.0);
 615     for (i=0; i < (ssize_t) MagickMax((1.0*delay+1.0)/3.0,1.0); i++)
 616     {
 617       (void) FormatLocaleString(p->filename,MaxTextExtent,"%s%.20g.%s",
 618         basename,(double) count++,WriteMPEGIntermediateFormat);
 619       (void) RelinquishUniqueFileResource(p->filename);
 620     }
 621     (void) CopyMagickString(p->filename,image_info->filename,MaxTextExtent);
 622   }
 623   (void) RelinquishUniqueFileResource(basename);
 624   coalesce_image=DestroyImageList(coalesce_image);
 625   if (image->debug != MagickFalse)
 626     (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit");
 627   return(status);
 628 }