/plugins/ImageMagick-6.3.2/wand/identify.c
C | 718 lines | 601 code | 27 blank | 90 comment | 239 complexity | 9b061a25c88d13a0fc7cb24aba5c8ab3 MD5 | raw file
Possible License(s): MPL-2.0-no-copyleft-exception, LGPL-2.1
- /*
- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
- % %
- % %
- % %
- % IIIII DDDD EEEEE N N TTTTT IIIII FFFFF Y Y %
- % I D D E NN N T I F Y Y %
- % I D D EEE N N N T I FFF Y %
- % I D D E N NN T I F Y %
- % IIIII DDDD EEEEE N N T IIIII F Y %
- % %
- % %
- % Identify an Image Format and Characteristics. %
- % %
- % Software Design %
- % John Cristy %
- % September 1994 %
- % %
- % %
- % Copyright 1999-2006 ImageMagick Studio LLC, a non-profit organization %
- % dedicated to making software imaging solutions freely available. %
- % %
- % You may not use this file except in compliance with the License. You may %
- % obtain a copy of the License at %
- % %
- % http://www.imagemagick.org/script/license.php %
- % %
- % Unless required by applicable law or agreed to in writing, software %
- % distributed under the License is distributed on an "AS IS" BASIS, %
- % WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. %
- % See the License for the specific language governing permissions and %
- % limitations under the License. %
- % %
- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
- %
- % Identify describes the format and characteristics of one or more image
- % files. It will also report if an image is incomplete or corrupt.
- %
- %
- */
- /*
- Include declarations.
- */
- #include "wand/studio.h"
- #include "wand/MagickWand.h"
- #include "wand/mogrify-private.h"
- /*
- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
- % %
- % %
- % %
- + I d e n t i f y I m a g e C o m m a n d %
- % %
- % %
- % %
- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
- %
- % IdentifyImageCommand() describes the format and characteristics of one or
- % more image files. It will also report if an image is incomplete or corrupt.
- % The information displayed includes the scene number, the file name, the
- % width and height of the image, whether the image is colormapped or not,
- % the number of colors in the image, the number of bytes in the image, the
- % format of the image (JPEG, PNM, etc.), and finally the number of seconds
- % it took to read and process the image.
- %
- % The format of the IdentifyImageCommand method is:
- %
- % MagickBooleanType IdentifyImageCommand(ImageInfo *image_info,int argc,
- % char **argv,char **metadata,ExceptionInfo *exception)
- %
- % A description of each parameter follows:
- %
- % o image_info: The image info.
- %
- % o argc: The number of elements in the argument vector.
- %
- % o argv: A text array containing the command line arguments.
- %
- % o metadata: any metadata is returned here.
- %
- % o exception: Return any errors or warnings in this structure.
- %
- %
- */
- static void IdentifyUsage(void)
- {
- const char
- **p;
- static const char
- *settings[]=
- {
- "-antialias remove pixel-aliasing",
- "-authenticate value decrypt image with this password",
- "-channel type apply option to select image channels",
- "-crop geometry cut out a rectangular region of the image",
- "-debug events display copious debugging information",
- "-define format:option",
- " define one or more image format options",
- "-density geometry horizontal and vertical density of the image",
- "-depth value image depth",
- "-extract geometry extract area from image",
- "-format \"string\" output formatted image characteristics",
- "-fuzz distance colors within this distance are considered equal",
- "-help print program options",
- "-interlace type type of image interlacing scheme",
- "-interpolate method pixel color interpolation method",
- "-limit type value pixel cache resource limit",
- "-list type Color, Configure, Delegate, Format, Magic, Module,",
- " Resource, or Type",
- "-log format format of debugging information",
- "-matte store matte channel if the image has one",
- "-monitor monitor progress",
- "-ping efficiently determine image attributes",
- "-quiet suppress all error or warning messages",
- "-regard-warnings pay attention to warning messages",
- "-sampling-factor geometry",
- " horizontal and vertical sampling factor",
- "-set attribute value set an image attribute",
- "-size geometry width and height of image",
- "-strip strip image of all profiles and comments",
- "-units type the units of image resolution",
- "-verbose print detailed information about the image",
- "-version print version information",
- "-virtual-pixel method",
- " virtual pixel access method",
- (char *) NULL
- };
- (void) printf("Version: %s\n",GetMagickVersion((unsigned long *) NULL));
- (void) printf("Copyright: %s\n\n",GetMagickCopyright());
- (void) printf("Usage: %s [options ...] file [ [options ...] "
- "file ... ]\n",GetClientName());
- (void) printf("\nImage Settings:\n");
- for (p=settings; *p != (char *) NULL; p++)
- (void) printf(" %s\n",*p);
- (void) printf(
- "\nBy default, the image format of `file' is determined by its magic\n");
- (void) printf(
- "number. To specify a particular image format, precede the filename\n");
- (void) printf(
- "with an image format name and a colon (i.e. ps:image) or specify the\n");
- (void) printf(
- "image type as the filename suffix (i.e. image.ps). Specify 'file' as\n");
- (void) printf("'-' for standard input or output.\n");
- exit(0);
- }
- WandExport MagickBooleanType IdentifyImageCommand(ImageInfo *image_info,
- int argc,char **argv,char **metadata,ExceptionInfo *exception)
- {
- #define DestroyIdentify() \
- { \
- for ( ; k >= 0; k--) \
- image_stack[k]=DestroyImageList(image_stack[k]); \
- for (i=0; i < (long) argc; i++) \
- argv[i]=(char *) RelinquishMagickMemory(argv[i]); \
- argv=(char **) RelinquishMagickMemory(argv); \
- }
- #define ThrowIdentifyException(asperity,tag,option) \
- { \
- if (exception->severity == UndefinedException) \
- (void) ThrowMagickException(exception,GetMagickModule(),asperity,tag, \
- "`%s'",option); \
- DestroyIdentify(); \
- return(MagickFalse); \
- }
- #define ThrowIdentifyInvalidArgumentException(option,argument) \
- { \
- (void) ThrowMagickException(exception,GetMagickModule(),OptionError, \
- "InvalidArgument","`%s': %s",argument,option); \
- DestroyIdentify(); \
- return(MagickFalse); \
- }
- const char
- *format,
- *option;
- Image
- *image_stack[MaxImageStackDepth+1];
- long
- j,
- k;
- MagickBooleanType
- fire,
- pend;
- MagickStatusType
- status;
- register long
- i;
- unsigned long
- count;
- /*
- Set defaults.
- */
- assert(image_info != (ImageInfo *) NULL);
- assert(image_info->signature == MagickSignature);
- if (image_info->debug != MagickFalse)
- (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
- assert(exception != (ExceptionInfo *) NULL);
- if (argc < 2)
- IdentifyUsage();
- count=0;
- format=NULL;
- j=1;
- k=0;
- image_stack[k]=NewImageList();
- option=(char *) NULL;
- pend=MagickFalse;
- status=MagickTrue;
- /*
- Identify an image.
- */
- ReadCommandlLine(argc,&argv);
- status=ExpandFilenames(&argc,&argv);
- if (status == MagickFalse)
- {
- char
- *message;
- message=GetExceptionMessage(errno);
- ThrowIdentifyException(ResourceLimitError,"MemoryAllocationFailed",
- message);
- message=(char *) RelinquishMagickMemory(message);
- }
- for (i=1; i < (long) argc; i++)
- {
- option=argv[i];
- if (LocaleCompare(option,"(") == 0)
- {
- if (k == MaxImageStackDepth)
- ThrowIdentifyException(OptionError,"ParenthesisNestedTooDeeply",
- option);
- MogrifyImageStack(image_stack[k],MagickTrue,pend);
- k++;
- image_stack[k]=NewImageList();
- continue;
- }
- if (LocaleCompare(option,")") == 0)
- {
- if (k == 0)
- ThrowIdentifyException(OptionError,"UnableToParseExpression",option);
- if (image_stack[k] != (Image *) NULL)
- {
- MogrifyImageStack(image_stack[k],MagickTrue,MagickTrue);
- AppendImageToList(&image_stack[k-1],image_stack[k]);
- }
- k--;
- continue;
- }
- if (IsMagickOption(option) == MagickFalse)
- {
- char
- *filename;
- Image
- *image;
- ImageInfo
- *identify_info;
- /*
- Read input image.
- */
- MogrifyImageStack(image_stack[k],MagickFalse,pend);
- identify_info=CloneImageInfo(image_info);
- identify_info->verbose=MagickFalse;
- filename=argv[i];
- if ((LocaleCompare(filename,"--") == 0) && (i < (argc-1)))
- filename=argv[++i];
- (void) CopyMagickString(identify_info->filename,filename,MaxTextExtent);
- if ((image_info->verbose != MagickFalse) ||
- (identify_info->ping == MagickFalse))
- image=ReadImage(identify_info,exception);
- else
- image=PingImage(identify_info,exception);
- identify_info=DestroyImageInfo(identify_info);
- status&=(image != (Image *) NULL) &&
- (exception->severity < ErrorException);
- if (image == (Image *) NULL)
- continue;
- AppendImageToList(&image_stack[k],image);
- MogrifyImageStack(image_stack[k],MagickFalse,MagickTrue);
- image=image_stack[k];
- for ( ; image != (Image *) NULL; image=GetNextImageInList(image))
- {
- if (image->scene == 0)
- image->scene=count++;
- if (format == (char *) NULL)
- {
- (void) IdentifyImage(image,stdout,image_info->verbose);
- continue;
- }
- if (metadata != (char **) NULL)
- {
- char
- *text;
- text=InterpretImageProperties(image_info,image,format);
- if (text == (char *) NULL)
- {
- char
- *message;
- message=GetExceptionMessage(errno);
- ThrowIdentifyException(ResourceLimitError,
- "MemoryAllocationFailed",message);
- message=(char *) RelinquishMagickMemory(message);
- }
- (void) ConcatenateString(&(*metadata),text);
- text=(char *) RelinquishMagickMemory(text);
- if (LocaleCompare(format,"%n") == 0)
- break;
- }
- }
- image_stack[k]=DestroyImageList(image_stack[k]);
- continue;
- }
- pend=image_stack[k] != (Image *) NULL ? MagickTrue : MagickFalse;
- switch (*(option+1))
- {
- case 'a':
- {
- if (LocaleCompare("antialias",option+1) == 0)
- break;
- if (LocaleCompare("authenticate",option+1) == 0)
- {
- if (*option == '+')
- break;
- i++;
- if (i == (long) (argc-1))
- ThrowIdentifyException(OptionError,"MissingArgument",option);
- break;
- }
- ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
- }
- case 'c':
- {
- if (LocaleCompare("cache",option+1) == 0)
- {
- if (*option == '+')
- break;
- i++;
- if (i == (long) argc)
- ThrowIdentifyException(OptionError,"MissingArgument",option);
- if (IsGeometry(argv[i]) == MagickFalse)
- ThrowIdentifyInvalidArgumentException(option,argv[i]);
- break;
- }
- if (LocaleCompare("channel",option+1) == 0)
- {
- long
- channel;
- if (*option == '+')
- break;
- i++;
- if (i == (long) (argc-1))
- ThrowIdentifyException(OptionError,"MissingArgument",option);
- channel=ParseChannelOption(argv[i]);
- if (channel < 0)
- ThrowIdentifyException(OptionError,"UnrecognizedChannelType",
- argv[i]);
- break;
- }
- if (LocaleCompare("crop",option+1) == 0)
- {
- if (*option == '+')
- break;
- i++;
- if (i == (long) (argc-1))
- ThrowIdentifyException(OptionError,"MissingArgument",option);
- if (IsGeometry(argv[i]) == MagickFalse)
- ThrowIdentifyInvalidArgumentException(option,argv[i]);
- image_info->ping=MagickFalse;
- break;
- }
- ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
- }
- case 'd':
- {
- if (LocaleCompare("debug",option+1) == 0)
- {
- long
- event;
- if (*option == '+')
- break;
- i++;
- if (i == (long) argc)
- ThrowIdentifyException(OptionError,"MissingArgument",option);
- event=ParseMagickOption(MagickLogEventOptions,MagickFalse,argv[i]);
- if (event < 0)
- ThrowIdentifyException(OptionError,"UnrecognizedEventType",
- argv[i]);
- (void) SetLogEventMask(argv[i]);
- break;
- break;
- }
- if (LocaleCompare("define",option+1) == 0)
- {
- i++;
- if (i == (long) argc)
- ThrowIdentifyException(OptionError,"MissingArgument",option);
- if (*option == '+')
- {
- const char
- *define;
- define=GetImageOption(image_info,argv[i]);
- if (define == (const char *) NULL)
- ThrowIdentifyException(OptionError,"NoSuchOption",argv[i]);
- break;
- }
- break;
- }
- if (LocaleCompare("density",option+1) == 0)
- {
- if (*option == '+')
- break;
- i++;
- if (i == (long) argc)
- ThrowIdentifyException(OptionError,"MissingArgument",option);
- if (IsGeometry(argv[i]) == MagickFalse)
- ThrowIdentifyInvalidArgumentException(option,argv[i]);
- break;
- }
- if (LocaleCompare("depth",option+1) == 0)
- {
- if (*option == '+')
- break;
- i++;
- if (i == (long) argc)
- ThrowIdentifyException(OptionError,"MissingArgument",option);
- if (IsGeometry(argv[i]) == MagickFalse)
- ThrowIdentifyInvalidArgumentException(option,argv[i]);
- break;
- }
- ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
- }
- case 'f':
- {
- if (LocaleCompare("format",option+1) == 0)
- {
- format=(char *) NULL;
- if (*option == '+')
- break;
- i++;
- if (i == (long) argc)
- ThrowIdentifyException(OptionError,"MissingArgument",option);
- format=argv[i];
- break;
- }
- if (LocaleCompare("fuzz",option+1) == 0)
- {
- if (*option == '+')
- break;
- i++;
- if (i == (long) (argc-1))
- ThrowIdentifyException(OptionError,"MissingArgument",option);
- if (IsGeometry(argv[i]) == MagickFalse)
- ThrowIdentifyInvalidArgumentException(option,argv[i]);
- break;
- }
- ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
- }
- case 'h':
- {
- if ((LocaleCompare("help",option+1) == 0) ||
- (LocaleCompare("-help",option+1) == 0))
- IdentifyUsage();
- ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
- }
- case 'i':
- {
- if (LocaleCompare("interlace",option+1) == 0)
- {
- long
- interlace;
- if (*option == '+')
- break;
- i++;
- if (i == (long) argc)
- ThrowIdentifyException(OptionError,"MissingArgument",option);
- interlace=ParseMagickOption(MagickInterlaceOptions,MagickFalse,
- argv[i]);
- if (interlace < 0)
- ThrowIdentifyException(OptionError,
- "UnrecognizedInterlaceType",argv[i]);
- break;
- }
- if (LocaleCompare("interpolate",option+1) == 0)
- {
- long
- interpolate;
- if (*option == '+')
- break;
- i++;
- if (i == (long) argc)
- ThrowIdentifyException(OptionError,"MissingArgument",option);
- interpolate=ParseMagickOption(MagickInterpolateOptions,MagickFalse,
- argv[i]);
- if (interpolate < 0)
- ThrowIdentifyException(OptionError,
- "UnrecognizedInterpolateMethod",argv[i]);
- break;
- }
- ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
- }
- case 'l':
- {
- if (LocaleCompare("limit",option+1) == 0)
- {
- long
- resource;
- if (*option == '+')
- break;
- i++;
- if (i == (long) argc)
- ThrowIdentifyException(OptionError,"MissingArgument",option);
- resource=ParseMagickOption(MagickResourceOptions,MagickFalse,
- argv[i]);
- if (resource < 0)
- ThrowIdentifyException(OptionError,"UnrecognizedResourceType",
- argv[i]);
- i++;
- if (i == (long) argc)
- ThrowIdentifyException(OptionError,"MissingArgument",option);
- if ((LocaleCompare("unlimited",argv[i]) != 0) &&
- (IsGeometry(argv[i]) == MagickFalse))
- ThrowIdentifyInvalidArgumentException(option,argv[i]);
- break;
- }
- if (LocaleCompare("list",option+1) == 0)
- {
- long
- list;
- if (*option == '+')
- break;
- i++;
- if (i == (long) argc)
- ThrowIdentifyException(OptionError,"MissingArgument",option);
- list=ParseMagickOption(MagickListOptions,MagickFalse,argv[i]);
- if (list < 0)
- ThrowIdentifyException(OptionError,"UnrecognizedListType",
- argv[i]);
- (void) MogrifyImageInfo(image_info,(int) (i-j+1),(const char **)
- argv+j,exception);
- DestroyIdentify();
- return(MagickTrue);
- }
- if (LocaleCompare("log",option+1) == 0)
- {
- if (*option == '+')
- break;
- i++;
- if ((i == (long) argc) ||
- (strchr(argv[i],'%') == (char *) NULL))
- ThrowIdentifyException(OptionError,"MissingArgument",option);
- break;
- }
- ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
- }
- case 'm':
- {
- if (LocaleCompare("matte",option+1) == 0)
- break;
- if (LocaleCompare("monitor",option+1) == 0)
- break;
- ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
- }
- case 'p':
- {
- if (LocaleCompare("ping",option+1) == 0)
- break;
- ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
- }
- case 'q':
- {
- if (LocaleCompare("quiet",option+1) == 0)
- break;
- ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
- }
- case 'r':
- {
- if (LocaleCompare("regard-warnings",option+1) == 0)
- break;
- ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
- }
- case 's':
- {
- if (LocaleCompare("sampling-factor",option+1) == 0)
- {
- if (*option == '+')
- break;
- i++;
- if (i == (long) argc)
- ThrowIdentifyException(OptionError,"MissingArgument",option);
- if (IsGeometry(argv[i]) == MagickFalse)
- ThrowIdentifyInvalidArgumentException(option,argv[i]);
- break;
- }
- if (LocaleCompare("set",option+1) == 0)
- {
- i++;
- if (i == (long) argc)
- ThrowIdentifyException(OptionError,"MissingArgument",option);
- if (*option == '+')
- break;
- i++;
- if (i == (long) argc)
- ThrowIdentifyException(OptionError,"MissingArgument",option);
- break;
- }
- if (LocaleCompare("size",option+1) == 0)
- {
- if (*option == '+')
- break;
- i++;
- if (i == (long) argc)
- ThrowIdentifyException(OptionError,"MissingArgument",option);
- if (IsGeometry(argv[i]) == MagickFalse)
- ThrowIdentifyInvalidArgumentException(option,argv[i]);
- break;
- }
- if (LocaleCompare("strip",option+1) == 0)
- break;
- if (LocaleCompare("support",option+1) == 0)
- {
- if (*option == '+')
- break;
- i++;
- if (i == (long) argc)
- ThrowIdentifyException(OptionError,"MissingArgument",option);
- if (IsGeometry(argv[i]) == MagickFalse)
- ThrowIdentifyInvalidArgumentException(option,argv[i]);
- break;
- }
- ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
- }
- case 'u':
- {
- if (LocaleCompare("units",option+1) == 0)
- {
- long
- units;
- if (*option == '+')
- break;
- i++;
- if (i == (long) (argc-1))
- ThrowIdentifyException(OptionError,"MissingArgument",option);
- units=ParseMagickOption(MagickResolutionOptions,MagickFalse,
- argv[i]);
- if (units < 0)
- ThrowIdentifyException(OptionError,"UnrecognizedUnitsType",
- argv[i]);
- break;
- }
- ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
- }
- case 'v':
- {
- if (LocaleCompare("verbose",option+1) == 0)
- break;
- if ((LocaleCompare("version",option+1) == 0) ||
- (LocaleCompare("-version",option+1) == 0))
- break;
- if (LocaleCompare("virtual-pixel",option+1) == 0)
- {
- long
- method;
- if (*option == '+')
- break;
- i++;
- if (i == (long) (argc-1))
- ThrowIdentifyException(OptionError,"MissingArgument",option);
- method=ParseMagickOption(MagickVirtualPixelOptions,MagickFalse,
- argv[i]);
- if (method < 0)
- ThrowIdentifyException(OptionError,
- "UnrecognizedVirtualPixelMethod",argv[i]);
- break;
- }
- ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
- }
- case '?':
- break;
- default:
- ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
- }
- fire=(MagickBooleanType) ParseMagickOption(MagickMogrifyOptions,
- MagickFalse,option+1);
- if (fire == MagickTrue)
- MogrifyImageStack(image_stack[k],MagickTrue,MagickTrue);
- }
- if (k != 0)
- ThrowIdentifyException(OptionError,"UnbalancedParenthesis",argv[i]);
- if (i != argc)
- ThrowIdentifyException(OptionError,"MissingAnImageFilename",argv[i]);
- DestroyIdentify();
- return(status != 0 ? MagickTrue : MagickFalse);
- }