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 1999-2017 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   entry->flags|=CoderSeekableStreamFlag;
 248   (void) RegisterMagickInfo(entry);
 249   entry=AcquireMagickInfo("MPEG","MKV","Multimedia Container");
 250   entry->decoder=(DecodeImageHandler *) ReadMPEGImage;
 251   entry->encoder=(EncodeImageHandler *) WriteMPEGImage;
 252   entry->magick=(IsImageFormatHandler *) IsMPEG;
 253   entry->flags^=CoderBlobSupportFlag;
 254   entry->flags|=CoderSeekableStreamFlag;
 255   (void) RegisterMagickInfo(entry);
 256   entry=AcquireMagickInfo("MPEG","MOV","MPEG Video Stream");
 257   entry->decoder=(DecodeImageHandler *) ReadMPEGImage;
 258   entry->encoder=(EncodeImageHandler *) WriteMPEGImage;
 259   entry->magick=(IsImageFormatHandler *) IsMPEG;
 260   entry->flags^=CoderBlobSupportFlag;
 261   entry->flags|=CoderSeekableStreamFlag;
 262   (void) RegisterMagickInfo(entry);
 263   entry=AcquireMagickInfo("MPEG","MPEG","MPEG Video Stream");
 264   entry->decoder=(DecodeImageHandler *) ReadMPEGImage;
 265   entry->encoder=(EncodeImageHandler *) WriteMPEGImage;
 266   entry->magick=(IsImageFormatHandler *) IsMPEG;
 267   entry->flags^=CoderBlobSupportFlag;
 268   entry->flags|=CoderSeekableStreamFlag;
 269   (void) RegisterMagickInfo(entry);
 270   entry=AcquireMagickInfo("MPEG","MPG","MPEG Video Stream");
 271   entry->decoder=(DecodeImageHandler *) ReadMPEGImage;
 272   entry->encoder=(EncodeImageHandler *) WriteMPEGImage;
 273   entry->magick=(IsImageFormatHandler *) IsMPEG;
 274   entry->flags^=CoderBlobSupportFlag;
 275   entry->flags|=CoderSeekableStreamFlag;
 276   (void) RegisterMagickInfo(entry);
 277   entry=AcquireMagickInfo("MPEG","MP4","MPEG-4 Video Stream");
 278   entry->decoder=(DecodeImageHandler *) ReadMPEGImage;
 279   entry->encoder=(EncodeImageHandler *) WriteMPEGImage;
 280   entry->magick=(IsImageFormatHandler *) IsMPEG;
 281   entry->flags^=CoderBlobSupportFlag;
 282   entry->flags|=CoderSeekableStreamFlag;
 283   (void) RegisterMagickInfo(entry);
 284   entry=AcquireMagickInfo("MPEG","M2V","MPEG Video Stream");
 285   entry->decoder=(DecodeImageHandler *) ReadMPEGImage;
 286   entry->encoder=(EncodeImageHandler *) WriteMPEGImage;
 287   entry->magick=(IsImageFormatHandler *) IsMPEG;
 288   entry->flags^=CoderBlobSupportFlag;
 289   entry->flags|=CoderSeekableStreamFlag;
 290   (void) RegisterMagickInfo(entry);
 291   entry=AcquireMagickInfo("MPEG","M4V","Raw MPEG-4 Video");
 292   entry->decoder=(DecodeImageHandler *) ReadMPEGImage;
 293   entry->encoder=(EncodeImageHandler *) WriteMPEGImage;
 294   entry->magick=(IsImageFormatHandler *) IsMPEG;
 295   entry->flags^=CoderBlobSupportFlag;
 296   entry->flags|=CoderSeekableStreamFlag;
 297   (void) RegisterMagickInfo(entry);
 298   entry=AcquireMagickInfo("MPEG","WMV","Windows Media Video");
 299   entry->decoder=(DecodeImageHandler *) ReadMPEGImage;
 300   entry->encoder=(EncodeImageHandler *) WriteMPEGImage;
 301   entry->magick=(IsImageFormatHandler *) IsMPEG;
 302   entry->flags^=CoderBlobSupportFlag;
 303   entry->flags|=CoderSeekableStreamFlag;
 304   (void) RegisterMagickInfo(entry);
 305   return(MagickImageCoderSignature);
 306 }
 307 \f
 308 /*
 309 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 310 %                                                                             %
 311 %                                                                             %
 312 %                                                                             %
 313 %   U n r e g i s t e r M P E G I m a g e                                     %
 314 %                                                                             %
 315 %                                                                             %
 316 %                                                                             %
 317 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 318 %
 319 %  UnregisterMPEGImage() removes format registrations made by the
 320 %  BIM module from the list of supported formats.
 321 %
 322 %  The format of the UnregisterBIMImage method is:
 323 %
 324 %      UnregisterMPEGImage(void)
 325 %
 326 */
 327 ModuleExport void UnregisterMPEGImage(void)
 328 {
 329   (void) UnregisterMagickInfo("WMV");
 330   (void) UnregisterMagickInfo("MOV");
 331   (void) UnregisterMagickInfo("M4V");
 332   (void) UnregisterMagickInfo("M2V");
 333   (void) UnregisterMagickInfo("MP4");
 334   (void) UnregisterMagickInfo("MPG");
 335   (void) UnregisterMagickInfo("MPEG");
 336   (void) UnregisterMagickInfo("MKV");
 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 static MagickBooleanType CopyDelegateFile(const char *source,
 370   const char *destination)
 371 {
 372   int
 373     destination_file,
 374     source_file;
 375
 376   MagickBooleanType
 377     status;
 378
 379   register size_t
 380     i;
 381
 382   size_t
 383     length,
 384     quantum;
 385
 386   ssize_t
 387     count;
 388
 389   struct stat
 390     attributes;
 391
 392   unsigned char
 393     *buffer;
 394
 395   /*
 396     Return if destination file already exists and is not empty.
 397   */
 398   assert(source != (const char *) NULL);
 399   assert(destination != (char *) NULL);
 400   status=GetPathAttributes(destination,&attributes);
 401   if ((status != MagickFalse) && (attributes.st_size > 0))
 402     return(MagickTrue);
 403   /*
 404     Copy source file to destination.
 405   */
 406   destination_file=open_utf8(destination,O_WRONLY | O_BINARY | O_CREAT,S_MODE);
 407   if (destination_file == -1)
 408     return(MagickFalse);
 409   source_file=open_utf8(source,O_RDONLY | O_BINARY,0);
 410   if (source_file == -1)
 411     {
 412       (void) close(destination_file);
 413       return(MagickFalse);
 414     }
 415   quantum=(size_t) MagickMaxBufferExtent;
 416   if ((fstat(source_file,&attributes) == 0) && (attributes.st_size > 0))
 417     quantum=(size_t) MagickMin((double) attributes.st_size,
 418       MagickMaxBufferExtent);
 419   buffer=(unsigned char *) AcquireQuantumMemory(quantum,sizeof(*buffer));
 420   if (buffer == (unsigned char *) NULL)
 421     {
 422       (void) close(source_file);
 423       (void) close(destination_file);
 424       return(MagickFalse);
 425     }
 426   length=0;
 427   for (i=0; ; i+=count)
 428   {
 429     count=(ssize_t) read(source_file,buffer,quantum);
 430     if (count <= 0)
 431       break;
 432     length=(size_t) count;
 433     count=(ssize_t) write(destination_file,buffer,length);
 434     if ((size_t) count != length)
 435       break;
 436   }
 437   (void) close(destination_file);
 438   (void) close(source_file);
 439   buffer=(unsigned char *) RelinquishMagickMemory(buffer);
 440   return(i != 0 ? MagickTrue : MagickFalse);
 441 }
 442
 443 static MagickBooleanType WriteMPEGImage(const ImageInfo *image_info,
 444   Image *image,ExceptionInfo *exception)
 445 {
 446 #define WriteMPEGIntermediateFormat "jpg"
 447
 448   char
 449     basename[MagickPathExtent],
 450     filename[MagickPathExtent];
 451
 452   double
 453     delay;
 454
 455   Image
 456     *coalesce_image;
 457
 458   ImageInfo
 459     *write_info;
 460
 461   int
 462     file;
 463
 464   MagickBooleanType
 465     status;
 466
 467   register Image
 468     *p;
 469
 470   register ssize_t
 471     i;
 472
 473   size_t
 474     count,
 475     length,
 476     scene;
 477
 478   unsigned char
 479     *blob;
 480
 481   /*
 482     Open output image file.
 483   */
 484   assert(image_info != (const ImageInfo *) NULL);
 485   assert(image_info->signature == MagickCoreSignature);
 486   assert(image != (Image *) NULL);
 487   assert(image->signature == MagickCoreSignature);
 488   if (image->debug != MagickFalse)
 489     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
 490   assert(exception != (ExceptionInfo *) NULL);
 491   assert(exception->signature == MagickCoreSignature);
 492   status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
 493   if (status == MagickFalse)
 494     return(status);
 495   (void) CloseBlob(image);
 496   /*
 497     Write intermediate files.
 498   */
 499   coalesce_image=CoalesceImages(image,exception);
 500   if (coalesce_image == (Image *) NULL)
 501     return(MagickFalse);
 502   file=AcquireUniqueFileResource(basename);
 503   if (file != -1)
 504     file=close(file)-1;
 505   (void) FormatLocaleString(coalesce_image->filename,MagickPathExtent,"%s",
 506     basename);
 507   count=0;
 508   write_info=CloneImageInfo(image_info);
 509   *write_info->magick='\0';
 510   for (p=coalesce_image; p != (Image *) NULL; p=GetNextImageInList(p))
 511   {
 512     char
 513       previous_image[MagickPathExtent];
 514
 515     blob=(unsigned char *) NULL;
 516     length=0;
 517     scene=p->scene;
 518     delay=100.0*p->delay/MagickMax(1.0*p->ticks_per_second,1.0);
 519     for (i=0; i < (ssize_t) MagickMax((1.0*delay+1.0)/3.0,1.0); i++)
 520     {
 521       p->scene=count;
 522       count++;
 523       status=MagickFalse;
 524       switch (i)
 525       {
 526         case 0:
 527         {
 528           Image
 529             *frame;
 530
 531           (void) FormatLocaleString(p->filename,MagickPathExtent,"%s%.20g.%s",
 532             basename,(double) p->scene,WriteMPEGIntermediateFormat);
 533           (void) FormatLocaleString(filename,MagickPathExtent,"%s%.20g.%s",
 534             basename,(double) p->scene,WriteMPEGIntermediateFormat);
 535           (void) FormatLocaleString(previous_image,MagickPathExtent,
 536             "%s%.20g.%s",basename,(double) p->scene,
 537             WriteMPEGIntermediateFormat);
 538           frame=CloneImage(p,0,0,MagickTrue,exception);
 539           if (frame == (Image *) NULL)
 540             break;
 541           status=WriteImage(write_info,frame,exception);
 542           frame=DestroyImage(frame);
 543           break;
 544         }
 545         case 1:
 546         {
 547           blob=(unsigned char *) FileToBlob(previous_image,~0UL,&length,
 548             exception);
 549         }
 550         default:
 551         {
 552           (void) FormatLocaleString(filename,MagickPathExtent,"%s%.20g.%s",
 553             basename,(double) p->scene,WriteMPEGIntermediateFormat);
 554           if (length > 0)
 555             status=BlobToFile(filename,blob,length,exception);
 556           break;
 557         }
 558       }
 559       if (image->debug != MagickFalse)
 560         {
 561           if (status != MagickFalse)
 562             (void) LogMagickEvent(CoderEvent,GetMagickModule(),
 563               "%.20g. Wrote %s file for scene %.20g:",(double) i,
 564               WriteMPEGIntermediateFormat,(double) p->scene);
 565           else
 566             (void) LogMagickEvent(CoderEvent,GetMagickModule(),
 567               "%.20g. Failed to write %s file for scene %.20g:",(double) i,
 568               WriteMPEGIntermediateFormat,(double) p->scene);
 569           (void) LogMagickEvent(CoderEvent,GetMagickModule(),"%s",filename);
 570         }
 571     }
 572     p->scene=scene;
 573     if (blob != (unsigned char *) NULL)
 574       blob=(unsigned char *) RelinquishMagickMemory(blob);
 575     if (status == MagickFalse)
 576       break;
 577   }
 578   /*
 579     Convert JPEG to MPEG.
 580   */
 581   (void) CopyMagickString(coalesce_image->magick_filename,basename,
 582     MagickPathExtent);
 583   (void) CopyMagickString(coalesce_image->filename,basename,MagickPathExtent);
 584   GetPathComponent(image_info->filename,ExtensionPath,coalesce_image->magick);
 585   if (*coalesce_image->magick == '\0')
 586     (void) CopyMagickString(coalesce_image->magick,image->magick,MagickPathExtent);
 587   status=InvokeDelegate(write_info,coalesce_image,(char *) NULL,"mpeg:encode",
 588     exception);
 589   (void) FormatLocaleString(write_info->filename,MagickPathExtent,"%s.%s",
 590     write_info->unique,coalesce_image->magick);
 591   status=CopyDelegateFile(write_info->filename,image->filename);
 592   (void) RelinquishUniqueFileResource(write_info->filename);
 593   write_info=DestroyImageInfo(write_info);
 594   /*
 595     Relinquish resources.
 596   */
 597   count=0;
 598   for (p=coalesce_image; p != (Image *) NULL; p=GetNextImageInList(p))
 599   {
 600     delay=100.0*p->delay/MagickMax(1.0*p->ticks_per_second,1.0);
 601     for (i=0; i < (ssize_t) MagickMax((1.0*delay+1.0)/3.0,1.0); i++)
 602     {
 603       (void) FormatLocaleString(p->filename,MagickPathExtent,"%s%.20g.%s",
 604         basename,(double) count++,WriteMPEGIntermediateFormat);
 605       (void) RelinquishUniqueFileResource(p->filename);
 606     }
 607     (void) CopyMagickString(p->filename,image_info->filename,MagickPathExtent);
 608   }
 609   (void) RelinquishUniqueFileResource(basename);
 610   coalesce_image=DestroyImageList(coalesce_image);
 611   if (image->debug != MagickFalse)
 612     (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit");
 613   return(status);
 614 }