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stream.c
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% SSSSS TTTTT RRRR EEEEE AAA M M %
% SS T R R E A A MM MM %
% SSS T RRRR EEE AAAAA M M M %
% SS T R R E A A M M %
% SSSSS T R R EEEEE A A M M %
% %
% %
% Stream Image to a Raw Image Format %
% %
% Software Design %
% Cristy %
% July 1992 %
% %
% %
% Copyright @ 1999 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 %
% %
% https://imagemagick.org/license/ %
% %
% 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. %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% Stream is a lightweight tool to stream one or more pixel components of the
% image or portion of the image to your choice of storage formats. It writes
% the pixel components as they are read from the input image a row at a time
% making stream desirable when working with large images or when you require
% raw pixel components.
%
*/
␌
/*
Include declarations.
*/
#include "MagickWand/studio.h"
#include "MagickWand/MagickWand.h"
#include "MagickWand/mogrify-private.h"
#include "MagickCore/stream-private.h"
#include "MagickCore/string-private.h"
␌
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% S t r e a m I m a g e C o m m a n d %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% StreamImageCommand() is a lightweight method designed to extract pixels
% from large image files to a raw format using a minimum of system resources.
% The entire image or any regular portion of the image can be extracted.
%
% The format of the StreamImageCommand method is:
%
% MagickBooleanType StreamImageCommand(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 MagickBooleanType StreamUsage(void)
{
static const char
miscellaneous[] =
" -channel mask set the image channel mask\n"
" -debug events display copious debugging information\n"
" -help print program options\n"
" -list type print a list of supported option arguments\n"
" -log format format of debugging information\n"
" -version print version information",
settings[] =
" -authenticate password\n"
" decipher image with this password\n"
" -colorspace type alternate image colorspace\n"
" -compress type type of pixel compression when writing the image\n"
" -define format:option\n"
" define one or more image format options\n"
" -density geometry horizontal and vertical density of the image\n"
" -depth value image depth\n"
" -extract geometry extract area from image\n"
" -identify identify the format and characteristics of the image\n"
" -interlace type type of image interlacing scheme\n"
" -interpolate method pixel color interpolation method\n"
" -limit type value pixel cache resource limit\n"
" -map components one or more pixel components\n"
" -monitor monitor progress\n"
" -quantize colorspace reduce colors in this colorspace\n"
" -quiet suppress all warning messages\n"
" -regard-warnings pay attention to warning messages\n"
" -respect-parentheses settings remain in effect until parenthesis boundary\n"
" -sampling-factor geometry\n"
" horizontal and vertical sampling factor\n"
" -seed value seed a new sequence of pseudo-random numbers\n"
" -set attribute value set an image attribute\n"
" -size geometry width and height of image\n"
" -storage-type type pixel storage type\n"
" -synchronize synchronize image to storage device\n"
" -taint declare the image as modified\n"
" -transparent-color color\n"
" transparent color\n"
" -verbose print detailed information about the image\n"
" -virtual-pixel method\n"
" virtual pixel access method";
ListMagickVersion(stdout);
(void) printf("Usage: %s [options ...] input-image raw-image\n",
GetClientName());
(void) printf("\nImage Settings:\n");
(void) puts(settings);
(void) printf("\nMiscellaneous Options:\n");
(void) puts(miscellaneous);
(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");
return(MagickTrue);
}
WandExport MagickBooleanType StreamImageCommand(ImageInfo *image_info,
int argc,char **argv,char **metadata,ExceptionInfo *exception)
{
#define DestroyStream() \
{ \
DestroyImageStack(); \
stream_info=DestroyStreamInfo(stream_info); \
for (i=0; i < (ssize_t) argc; i++) \
argv[i]=DestroyString(argv[i]); \
argv=(char **) RelinquishMagickMemory(argv); \
}
#define ThrowStreamException(asperity,tag,option) \
{ \
(void) ThrowMagickException(exception,GetMagickModule(),asperity,tag,"`%s'", \
option); \
DestroyStream(); \
return(MagickFalse); \
}
#define ThrowStreamInvalidArgumentException(option,argument) \
{ \
(void) ThrowMagickException(exception,GetMagickModule(),OptionError, \
"InvalidArgument","'%s': %s",option,argument); \
DestroyStream(); \
return(MagickFalse); \
}
char
*filename,
*option;
const char
*format;
Image
*image = (Image *) NULL;
ImageStack
image_stack[MaxImageStackDepth+1];
MagickBooleanType
fire,
pend,
respect_parentheses;
MagickStatusType
status;
ssize_t
i;
ssize_t
j,
k;
StreamInfo
*stream_info;
/*
Set defaults.
*/
assert(image_info != (ImageInfo *) NULL);
assert(image_info->signature == MagickCoreSignature);
assert(exception != (ExceptionInfo *) NULL);
if (IsEventLogging() != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
(void) metadata;
if (argc == 2)
{
option=argv[1];
if ((LocaleCompare("help",option+1) == 0) ||
(LocaleCompare("-help",option+1) == 0))
return(StreamUsage());
if ((LocaleCompare("version",option+1) == 0) ||
(LocaleCompare("-version",option+1) == 0))
{
ListMagickVersion(stdout);
return(MagickFalse);
}
}
if (argc < 3)
{
(void) ThrowMagickException(exception,GetMagickModule(),OptionError,
"MissingArgument","%s","");
(void) StreamUsage();
return(MagickFalse);
}
format="%w,%h,%m";
(void) format;
j=1;
k=0;
NewImageStack();
option=(char *) NULL;
pend=MagickFalse;
respect_parentheses=MagickFalse;
stream_info=AcquireStreamInfo(image_info,exception);
status=MagickTrue;
/*
Stream an image.
*/
ReadCommandlLine(argc,&argv);
status=ExpandFilenames(&argc,&argv);
if (status == MagickFalse)
ThrowStreamException(ResourceLimitError,"MemoryAllocationFailed",
GetExceptionMessage(errno));
status=OpenStream(image_info,stream_info,argv[argc-1],exception);
if (status == MagickFalse)
{
DestroyStream();
return(MagickFalse);
}
for (i=1; i < ((ssize_t) argc-1); i++)
{
option=argv[i];
if (LocaleCompare(option,"(") == 0)
{
FireImageStack(MagickFalse,MagickTrue,pend);
if (k == MaxImageStackDepth)
ThrowStreamException(OptionError,"ParenthesisNestedTooDeeply",option);
PushImageStack();
continue;
}
if (LocaleCompare(option,")") == 0)
{
FireImageStack(MagickFalse,MagickTrue,MagickTrue);
if (k == 0)
ThrowStreamException(OptionError,"UnableToParseExpression",option);
PopImageStack();
continue;
}
if (IsCommandOption(option) == MagickFalse)
{
Image
*images;
/*
Stream input image.
*/
FireImageStack(MagickFalse,MagickFalse,pend);
filename=argv[i];
if ((LocaleCompare(filename,"--") == 0) && (i < ((ssize_t) argc-1)))
filename=argv[++i];
(void) CopyMagickString(image_info->filename,filename,MagickPathExtent);
images=StreamImage(image_info,stream_info,exception);
status&=(MagickStatusType) (images != (Image *) NULL) &&
(exception->severity < ErrorException);
if (images == (Image *) NULL)
continue;
AppendImageStack(images);
continue;
}
pend=image != (Image *) NULL ? MagickTrue : MagickFalse;
switch (*(option+1))
{
case 'a':
{
if (LocaleCompare("authenticate",option+1) == 0)
{
if (*option == '+')
break;
i++;
if (i == (ssize_t) argc)
ThrowStreamException(OptionError,"MissingArgument",option);
break;
}
ThrowStreamException(OptionError,"UnrecognizedOption",option)
}
case 'c':
{
if (LocaleCompare("cache",option+1) == 0)
{
if (*option == '+')
break;
i++;
if (i == (ssize_t) argc)
ThrowStreamException(OptionError,"MissingArgument",option);
if (IsGeometry(argv[i]) == MagickFalse)
ThrowStreamInvalidArgumentException(option,argv[i]);
break;
}
if (LocaleCompare("channel",option+1) == 0)
{
ssize_t
channel;
if (*option == '+')
break;
i++;
if (i == (ssize_t) argc)
ThrowStreamException(OptionError,"MissingArgument",option);
channel=ParseChannelOption(argv[i]);
if (channel < 0)
ThrowStreamException(OptionError,"UnrecognizedChannelType",
argv[i]);
break;
}
if (LocaleCompare("colorspace",option+1) == 0)
{
ssize_t
colorspace;
if (*option == '+')
break;
i++;
if (i == (ssize_t) argc)
ThrowStreamException(OptionError,"MissingArgument",option);
colorspace=ParseCommandOption(MagickColorspaceOptions,MagickFalse,
argv[i]);
if (colorspace < 0)
ThrowStreamException(OptionError,"UnrecognizedColorspace",
argv[i]);
break;
}
if (LocaleCompare("compress",option+1) == 0)
{
ssize_t
compress;
if (*option == '+')
break;
i++;
if (i == (ssize_t) argc)
ThrowStreamException(OptionError,"MissingArgument",option);
compress=ParseCommandOption(MagickCompressOptions,MagickFalse,
argv[i]);
if (compress < 0)
ThrowStreamException(OptionError,"UnrecognizedImageCompression",
argv[i]);
break;
}
if (LocaleCompare("concurrent",option+1) == 0)
break;
ThrowStreamException(OptionError,"UnrecognizedOption",option)
}
case 'd':
{
if (LocaleCompare("debug",option+1) == 0)
{
ssize_t
event;
if (*option == '+')
break;
i++;
if (i == (ssize_t) argc)
ThrowStreamException(OptionError,"MissingArgument",option);
event=ParseCommandOption(MagickLogEventOptions,MagickFalse,argv[i]);
if (event < 0)
ThrowStreamException(OptionError,"UnrecognizedEventType",argv[i]);
(void) SetLogEventMask(argv[i]);
break;
}
if (LocaleCompare("define",option+1) == 0)
{
i++;
if (i == (ssize_t) argc)
ThrowStreamException(OptionError,"MissingArgument",option);
if (*option == '+')
{
const char
*define;
define=GetImageOption(image_info,argv[i]);
if (define == (const char *) NULL)
ThrowStreamException(OptionError,"NoSuchOption",argv[i]);
break;
}
break;
}
if (LocaleCompare("density",option+1) == 0)
{
if (*option == '+')
break;
i++;
if (i == (ssize_t) argc)
ThrowStreamException(OptionError,"MissingArgument",option);
if (IsGeometry(argv[i]) == MagickFalse)
ThrowStreamInvalidArgumentException(option,argv[i]);
break;
}
if (LocaleCompare("depth",option+1) == 0)
{
if (*option == '+')
break;
i++;
if (i == (ssize_t) argc)
ThrowStreamException(OptionError,"MissingArgument",option);
if (IsGeometry(argv[i]) == MagickFalse)
ThrowStreamInvalidArgumentException(option,argv[i]);
break;
}
if (LocaleCompare("duration",option+1) == 0)
{
if (*option == '+')
break;
i++;
if (i == (ssize_t) argc)
ThrowStreamException(OptionError,"MissingArgument",option);
if (IsGeometry(argv[i]) == MagickFalse)
ThrowStreamInvalidArgumentException(option,argv[i]);
break;
}
ThrowStreamException(OptionError,"UnrecognizedOption",option)
}
case 'e':
{
if (LocaleCompare("extract",option+1) == 0)
{
if (*option == '+')
break;
i++;
if (i == (ssize_t) argc)
ThrowStreamException(OptionError,"MissingArgument",option);
if (IsGeometry(argv[i]) == MagickFalse)
ThrowStreamInvalidArgumentException(option,argv[i]);
break;
}
ThrowStreamException(OptionError,"UnrecognizedOption",option)
}
case 'h':
{
if ((LocaleCompare("help",option+1) == 0) ||
(LocaleCompare("-help",option+1) == 0))
{
DestroyStream();
return(StreamUsage());
}
ThrowStreamException(OptionError,"UnrecognizedOption",option)
}
case 'i':
{
if (LocaleCompare("identify",option+1) == 0)
break;
if (LocaleCompare("interlace",option+1) == 0)
{
ssize_t
interlace;
if (*option == '+')
break;
i++;
if (i == (ssize_t) argc)
ThrowStreamException(OptionError,"MissingArgument",option);
interlace=ParseCommandOption(MagickInterlaceOptions,MagickFalse,
argv[i]);
if (interlace < 0)
ThrowStreamException(OptionError,"UnrecognizedInterlaceType",
argv[i]);
break;
}
if (LocaleCompare("interpolate",option+1) == 0)
{
ssize_t
interpolate;
if (*option == '+')
break;
i++;
if (i == (ssize_t) argc)
ThrowStreamException(OptionError,"MissingArgument",option);
interpolate=ParseCommandOption(MagickInterpolateOptions,MagickFalse,
argv[i]);
if (interpolate < 0)
ThrowStreamException(OptionError,"UnrecognizedInterpolateMethod",
argv[i]);
break;
}
ThrowStreamException(OptionError,"UnrecognizedOption",option)
}
case 'l':
{
if (LocaleCompare("limit",option+1) == 0)
{
char
*p;
double
value;
ssize_t
resource;
if (*option == '+')
break;
i++;
if (i == (ssize_t) argc)
ThrowStreamException(OptionError,"MissingArgument",option);
resource=ParseCommandOption(MagickResourceOptions,MagickFalse,
argv[i]);
if (resource < 0)
ThrowStreamException(OptionError,"UnrecognizedResourceType",
argv[i]);
i++;
if (i == (ssize_t) argc)
ThrowStreamException(OptionError,"MissingArgument",option);
value=StringToDouble(argv[i],&p);
(void) value;
if ((p == argv[i]) && (LocaleCompare("unlimited",argv[i]) != 0))
ThrowStreamInvalidArgumentException(option,argv[i]);
break;
}
if (LocaleCompare("list",option+1) == 0)
{
ssize_t
list;
if (*option == '+')
break;
i++;
if (i == (ssize_t) argc)
ThrowStreamException(OptionError,"MissingArgument",option);
list=ParseCommandOption(MagickListOptions,MagickFalse,argv[i]);
if (list < 0)
ThrowStreamException(OptionError,"UnrecognizedListType",argv[i]);
status=MogrifyImageInfo(image_info,(int) (i-j+1),(const char **)
argv+j,exception);
DestroyStream();
return(status == 0 ? MagickFalse : MagickTrue);
}
if (LocaleCompare("log",option+1) == 0)
{
if (*option == '+')
break;
i++;
if ((i == (ssize_t) argc) || (strchr(argv[i],'%') == (char *) NULL))
ThrowStreamException(OptionError,"MissingArgument",option);
break;
}
ThrowStreamException(OptionError,"UnrecognizedOption",option)
}
case 'm':
{
if (LocaleCompare("map",option+1) == 0)
{
(void) CopyMagickString(argv[i]+1,"san",MagickPathExtent);
if (*option == '+')
break;
i++;
SetStreamInfoMap(stream_info,argv[i]);
break;
}
if (LocaleCompare("monitor",option+1) == 0)
break;
ThrowStreamException(OptionError,"UnrecognizedOption",option)
}
case 'q':
{
if (LocaleCompare("quantize",option+1) == 0)
{
ssize_t
colorspace;
if (*option == '+')
break;
i++;
if (i == (ssize_t) argc)
ThrowStreamException(OptionError,"MissingArgument",option);
colorspace=ParseCommandOption(MagickColorspaceOptions,
MagickFalse,argv[i]);
if (colorspace < 0)
ThrowStreamException(OptionError,"UnrecognizedColorspace",
argv[i]);
break;
}
if (LocaleCompare("quiet",option+1) == 0)
break;
ThrowStreamException(OptionError,"UnrecognizedOption",option)
}
case 'r':
{
if (LocaleCompare("regard-warnings",option+1) == 0)
break;
if (LocaleNCompare("respect-parentheses",option+1,17) == 0)
{
respect_parentheses=(*option == '-') ? MagickTrue : MagickFalse;
break;
}
ThrowStreamException(OptionError,"UnrecognizedOption",option)
}
case 's':
{
if (LocaleCompare("sampling-factor",option+1) == 0)
{
if (*option == '+')
break;
i++;
if (i == (ssize_t) argc)
ThrowStreamException(OptionError,"MissingArgument",option);
if (IsGeometry(argv[i]) == MagickFalse)
ThrowStreamInvalidArgumentException(option,argv[i]);
break;
}
if (LocaleCompare("seed",option+1) == 0)
{
if (*option == '+')
break;
i++;
if (i == (ssize_t) argc)
ThrowStreamException(OptionError,"MissingArgument",option);
if (IsGeometry(argv[i]) == MagickFalse)
ThrowStreamInvalidArgumentException(option,argv[i]);
break;
}
if (LocaleCompare("set",option+1) == 0)
{
i++;
if (i == (ssize_t) argc)
ThrowStreamException(OptionError,"MissingArgument",option);
if (*option == '+')
break;
i++;
if (i == (ssize_t) argc)
ThrowStreamException(OptionError,"MissingArgument",option);
break;
}
if (LocaleCompare("size",option+1) == 0)
{
if (*option == '+')
break;
i++;
if (i == (ssize_t) argc)
ThrowStreamException(OptionError,"MissingArgument",option);
if (IsGeometry(argv[i]) == MagickFalse)
ThrowStreamInvalidArgumentException(option,argv[i]);
break;
}
if (LocaleCompare("storage-type",option+1) == 0)
{
ssize_t
type;
if (*option == '+')
break;
i++;
if (i == (ssize_t) argc)
ThrowStreamException(OptionError,"MissingArgument",option);
type=ParseCommandOption(MagickStorageOptions,MagickFalse,argv[i]);
if (type < 0)
ThrowStreamException(OptionError,"UnrecognizedStorageType",
argv[i]);
SetStreamInfoStorageType(stream_info,(StorageType) type);
break;
}
if (LocaleCompare("synchronize",option+1) == 0)
break;
ThrowStreamException(OptionError,"UnrecognizedOption",option)
}
case 't':
{
if (LocaleCompare("taint",option+1) == 0)
break;
if (LocaleCompare("transparent-color",option+1) == 0)
{
if (*option == '+')
break;
i++;
if (i == (ssize_t) argc)
ThrowStreamException(OptionError,"MissingArgument",option);
break;
}
ThrowStreamException(OptionError,"UnrecognizedOption",option)
}
case 'v':
{
if (LocaleCompare("verbose",option+1) == 0)
break;
if ((LocaleCompare("version",option+1) == 0) ||
(LocaleCompare("-version",option+1) == 0))
{
ListMagickVersion(stdout);
break;
}
if (LocaleCompare("virtual-pixel",option+1) == 0)
{
ssize_t
method;
if (*option == '+')
break;
i++;
if (i == (ssize_t) argc)
ThrowStreamException(OptionError,"MissingArgument",option);
method=ParseCommandOption(MagickVirtualPixelOptions,MagickFalse,
argv[i]);
if (method < 0)
ThrowStreamException(OptionError,"UnrecognizedVirtualPixelMethod",
argv[i]);
break;
}
ThrowStreamException(OptionError,"UnrecognizedOption",option)
}
case '?':
break;
default:
ThrowStreamException(OptionError,"UnrecognizedOption",option)
}
fire=(GetCommandOptionFlags(MagickCommandOptions,MagickFalse,option) &
FireOptionFlag) == 0 ? MagickFalse : MagickTrue;
if (fire != MagickFalse)
FireImageStack(MagickFalse,MagickTrue,MagickTrue);
}
if (k != 0)
ThrowStreamException(OptionError,"UnbalancedParenthesis",argv[i]);
if (i-- != ((ssize_t) argc-1))
ThrowStreamException(OptionError,"MissingAnImageFilename",argv[i]);
if (image == (Image *) NULL)
ThrowStreamException(OptionError,"MissingAnImageFilename",argv[i]);
FinalizeImageSettings(image_info,image,MagickTrue);
if (image == (Image *) NULL)
ThrowStreamException(OptionError,"MissingAnImageFilename",argv[i]);
DestroyStream();
return(status != 0 ? MagickTrue : MagickFalse);
}