forked from openkylin/imagemagick
873 lines
30 KiB
C
873 lines
30 KiB
C
/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% Y Y U U V V %
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% Y Y U U V V %
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% Y U U V V %
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% Y U U V V %
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% Y UUU V %
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% %
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% %
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% Read/Write Raw CCIR 601 4:1:1 or 4:2:2 Image Format %
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% %
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% Software Design %
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% Cristy %
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% July 1992 %
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% %
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% %
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% Copyright 1999-2021 ImageMagick Studio LLC, a non-profit organization %
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% dedicated to making software imaging solutions freely available. %
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% %
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% You may not use this file except in compliance with the License. You may %
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% obtain a copy of the License at %
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% %
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% https://imagemagick.org/script/license.php %
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% %
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% Unless required by applicable law or agreed to in writing, software %
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% distributed under the License is distributed on an "AS IS" BASIS, %
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% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. %
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% See the License for the specific language governing permissions and %
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% limitations under the License. %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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%
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*/
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/*
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Include declarations.
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*/
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#include "magick/studio.h"
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#include "magick/blob.h"
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#include "magick/blob-private.h"
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#include "magick/cache.h"
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#include "magick/colorspace.h"
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#include "magick/constitute.h"
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#include "magick/exception.h"
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#include "magick/exception-private.h"
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#include "magick/geometry.h"
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#include "magick/image.h"
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#include "magick/image-private.h"
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#include "magick/list.h"
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#include "magick/magick.h"
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#include "magick/memory_.h"
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#include "magick/monitor.h"
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#include "magick/monitor-private.h"
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#include "magick/pixel-accessor.h"
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#include "magick/quantum-private.h"
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#include "magick/resize.h"
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#include "magick/static.h"
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#include "magick/string_.h"
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#include "magick/module.h"
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#include "magick/utility.h"
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/*
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Forward declarations.
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*/
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static MagickBooleanType
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WriteYUVImage(const ImageInfo *,Image *);
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/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% R e a d Y U V I m a g e %
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% %
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% %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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% ReadYUVImage() reads an image with digital YUV (CCIR 601 4:1:1, plane
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% or partition interlaced, or 4:2:2 plane, partition interlaced or
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% noninterlaced) bytes and returns it. It allocates the memory necessary
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% for the new Image structure and returns a pointer to the new image.
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%
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% The format of the ReadYUVImage method is:
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%
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% Image *ReadYUVImage(const ImageInfo *image_info,ExceptionInfo *exception)
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%
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% A description of each parameter follows:
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%
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% o image_info: the image info.
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%
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% o exception: return any errors or warnings in this structure.
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%
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*/
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static Image *ReadYUVImage(const ImageInfo *image_info,ExceptionInfo *exception)
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{
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Image
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*chroma_image,
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*image,
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*resize_image;
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InterlaceType
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interlace;
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MagickBooleanType
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status;
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const PixelPacket
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*chroma_pixels;
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ssize_t
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x;
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PixelPacket
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*q;
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unsigned char
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*p;
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ssize_t
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count,
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horizontal_factor,
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vertical_factor,
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y;
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size_t
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length,
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quantum;
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unsigned char
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*scanline;
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/*
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Allocate image structure.
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*/
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assert(image_info != (const ImageInfo *) NULL);
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assert(image_info->signature == MagickCoreSignature);
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if (image_info->debug != MagickFalse)
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(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
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image_info->filename);
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assert(exception != (ExceptionInfo *) NULL);
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assert(exception->signature == MagickCoreSignature);
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image=AcquireImage(image_info);
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if ((image->columns == 0) || (image->rows == 0))
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ThrowReaderException(OptionError,"MustSpecifyImageSize");
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status=SetImageExtent(image,image->columns,image->rows);
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if (status == MagickFalse)
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{
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InheritException(exception,&image->exception);
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return(DestroyImageList(image));
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}
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quantum=(size_t) (image->depth <= 8 ? 1 : 2);
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interlace=image_info->interlace;
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horizontal_factor=2;
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vertical_factor=2;
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if (image_info->sampling_factor != (char *) NULL)
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{
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GeometryInfo
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geometry_info;
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MagickStatusType
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flags;
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flags=ParseGeometry(image_info->sampling_factor,&geometry_info);
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horizontal_factor=(ssize_t) geometry_info.rho;
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vertical_factor=(ssize_t) geometry_info.sigma;
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if ((flags & SigmaValue) == 0)
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vertical_factor=horizontal_factor;
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if ((horizontal_factor != 1) && (horizontal_factor != 2) &&
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(vertical_factor != 1) && (vertical_factor != 2))
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ThrowReaderException(CorruptImageError,"UnexpectedSamplingFactor");
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}
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if ((interlace == UndefinedInterlace) ||
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((interlace == NoInterlace) && (vertical_factor == 2)))
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{
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interlace=NoInterlace; /* CCIR 4:2:2 */
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if (vertical_factor == 2)
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interlace=PlaneInterlace; /* CCIR 4:1:1 */
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}
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if (interlace != PartitionInterlace)
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{
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/*
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Open image file.
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*/
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status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
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if (status == MagickFalse)
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{
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image=DestroyImageList(image);
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return((Image *) NULL);
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}
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if (DiscardBlobBytes(image,(MagickSizeType) image->offset) == MagickFalse)
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ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
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image->filename);
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}
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/*
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Allocate memory for a scanline.
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*/
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if (interlace == NoInterlace)
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scanline=(unsigned char *) AcquireQuantumMemory((size_t) 2UL*
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image->columns+2UL,quantum*sizeof(*scanline));
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else
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scanline=(unsigned char *) AcquireQuantumMemory(image->columns,
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quantum*sizeof(*scanline));
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if (scanline == (unsigned char *) NULL)
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ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
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status=MagickTrue;
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do
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{
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chroma_image=CloneImage(image,(image->columns+horizontal_factor-1)/
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horizontal_factor,(image->rows+vertical_factor-1)/vertical_factor,
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MagickTrue,exception);
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if (chroma_image == (Image *) NULL)
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ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
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/*
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Convert raster image to pixel packets.
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*/
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if ((image_info->ping != MagickFalse) && (image_info->number_scenes != 0))
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if (image->scene >= (image_info->scene+image_info->number_scenes-1))
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break;
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status=SetImageExtent(image,image->columns,image->rows);
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if (status == MagickFalse)
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break;
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if (interlace == PartitionInterlace)
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{
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AppendImageFormat("Y",image->filename);
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status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
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if (status == MagickFalse)
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{
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image=DestroyImageList(image);
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return((Image *) NULL);
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}
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}
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for (y=0; y < (ssize_t) image->rows; y++)
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{
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PixelPacket
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*chroma_pixels;
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if (interlace == NoInterlace)
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{
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if ((y > 0) || (GetPreviousImageInList(image) == (Image *) NULL))
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{
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length=2*quantum*image->columns;
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count=ReadBlob(image,length,scanline);
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if (count != (ssize_t) length)
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{
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status=MagickFalse;
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ThrowFileException(exception,CorruptImageError,
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"UnexpectedEndOfFile",image->filename);
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break;
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}
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}
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p=scanline;
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q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
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if (q == (PixelPacket *) NULL)
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break;
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chroma_pixels=QueueAuthenticPixels(chroma_image,0,y,
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chroma_image->columns,1,exception);
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if (chroma_pixels == (PixelPacket *) NULL)
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break;
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for (x=0; x < (ssize_t) image->columns; x+=2)
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{
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SetPixelRed(chroma_pixels,0);
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if (quantum == 1)
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SetPixelGreen(chroma_pixels,ScaleCharToQuantum(*p++));
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else
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{
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SetPixelGreen(chroma_pixels,ScaleShortToQuantum(((*p) << 8) |
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*(p+1)));
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p+=2;
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}
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if (quantum == 1)
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SetPixelRed(q,ScaleCharToQuantum(*p++));
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else
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{
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SetPixelRed(q,ScaleShortToQuantum(((*p) << 8) | *(p+1)));
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p+=2;
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}
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SetPixelGreen(q,0);
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SetPixelBlue(q,0);
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q++;
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SetPixelGreen(q,0);
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SetPixelBlue(q,0);
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if (quantum == 1)
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SetPixelBlue(chroma_pixels,ScaleCharToQuantum(*p++));
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else
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{
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SetPixelBlue(chroma_pixels,ScaleShortToQuantum(((*p) << 8) |
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*(p+1)));
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p+=2;
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}
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if (quantum == 1)
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SetPixelRed(q,ScaleCharToQuantum(*p++));
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else
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{
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SetPixelRed(q,ScaleShortToQuantum(((*p) << 8) | *(p+1)));
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p+=2;
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}
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chroma_pixels++;
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q++;
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}
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}
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else
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{
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if ((y > 0) || (GetPreviousImageInList(image) == (Image *) NULL))
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{
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length=quantum*image->columns;
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count=ReadBlob(image,length,scanline);
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if (count != (ssize_t) length)
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{
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status=MagickFalse;
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ThrowFileException(exception,CorruptImageError,
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"UnexpectedEndOfFile",image->filename);
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break;
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}
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}
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p=scanline;
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q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
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if (q == (PixelPacket *) NULL)
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break;
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for (x=0; x < (ssize_t) image->columns; x++)
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{
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if (quantum == 1)
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SetPixelRed(q,ScaleCharToQuantum(*p++));
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else
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{
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SetPixelRed(q,ScaleShortToQuantum(((*p) << 8) | *(p+1)));
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p+=2;
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}
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SetPixelGreen(q,0);
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SetPixelBlue(q,0);
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q++;
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}
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}
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if (SyncAuthenticPixels(image,exception) == MagickFalse)
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break;
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if (interlace == NoInterlace)
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if (SyncAuthenticPixels(chroma_image,exception) == MagickFalse)
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break;
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if (image->previous == (Image *) NULL)
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{
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status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y,
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image->rows);
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if (status == MagickFalse)
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break;
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}
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}
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if (interlace == PartitionInterlace)
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{
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(void) CloseBlob(image);
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AppendImageFormat("U",image->filename);
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status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
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if (status == MagickFalse)
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{
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image=DestroyImageList(image);
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return((Image *) NULL);
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}
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}
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if (interlace != NoInterlace)
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{
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for (y=0; y < (ssize_t) chroma_image->rows; y++)
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{
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length=quantum*chroma_image->columns;
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count=ReadBlob(image,length,scanline);
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if (count != (ssize_t) length)
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{
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status=MagickFalse;
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ThrowFileException(exception,CorruptImageError,
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"UnexpectedEndOfFile",image->filename);
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break;
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}
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p=scanline;
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q=QueueAuthenticPixels(chroma_image,0,y,chroma_image->columns,1,
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exception);
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if (q == (PixelPacket *) NULL)
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break;
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for (x=0; x < (ssize_t) chroma_image->columns; x++)
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{
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SetPixelRed(q,0);
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if (quantum == 1)
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SetPixelGreen(q,ScaleCharToQuantum(*p++));
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else
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{
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SetPixelGreen(q,ScaleShortToQuantum(((*p) << 8) | *(p+1)));
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p+=2;
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}
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SetPixelBlue(q,0);
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q++;
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}
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if (SyncAuthenticPixels(chroma_image,exception) == MagickFalse)
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break;
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}
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if (interlace == PartitionInterlace)
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{
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(void) CloseBlob(image);
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AppendImageFormat("V",image->filename);
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status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
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if (status == MagickFalse)
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{
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image=DestroyImageList(image);
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return((Image *) NULL);
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}
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}
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for (y=0; y < (ssize_t) chroma_image->rows; y++)
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{
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length=quantum*chroma_image->columns;
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count=ReadBlob(image,length,scanline);
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if (count != (ssize_t) length)
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{
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status=MagickFalse;
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ThrowFileException(exception,CorruptImageError,
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"UnexpectedEndOfFile",image->filename);
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break;
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}
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p=scanline;
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q=GetAuthenticPixels(chroma_image,0,y,chroma_image->columns,1,
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exception);
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if (q == (PixelPacket *) NULL)
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break;
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for (x=0; x < (ssize_t) chroma_image->columns; x++)
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{
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if (quantum == 1)
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SetPixelBlue(q,ScaleCharToQuantum(*p++));
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else
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{
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SetPixelBlue(q,ScaleShortToQuantum(((*p) << 8) | *(p+1)));
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p+=2;
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}
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q++;
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}
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if (SyncAuthenticPixels(chroma_image,exception) == MagickFalse)
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break;
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}
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}
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/*
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Scale image.
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*/
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resize_image=ResizeImage(chroma_image,image->columns,image->rows,
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TriangleFilter,1.0,exception);
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chroma_image=DestroyImage(chroma_image);
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if (resize_image == (Image *) NULL)
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ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
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for (y=0; y < (ssize_t) image->rows; y++)
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{
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q=GetAuthenticPixels(image,0,y,image->columns,1,exception);
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chroma_pixels=GetVirtualPixels(resize_image,0,y,resize_image->columns,1,
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&resize_image->exception);
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if ((q == (PixelPacket *) NULL) ||
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(chroma_pixels == (const PixelPacket *) NULL))
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break;
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for (x=0; x < (ssize_t) image->columns; x++)
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{
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SetPixelGreen(q,GetPixelGreen(chroma_pixels));
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SetPixelBlue(q,GetPixelBlue(chroma_pixels));
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chroma_pixels++;
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q++;
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}
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if (SyncAuthenticPixels(image,exception) == MagickFalse)
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break;
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}
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resize_image=DestroyImage(resize_image);
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if (SetImageColorspace(image,YCbCrColorspace) == MagickFalse)
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break;
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if (interlace == PartitionInterlace)
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(void) CopyMagickString(image->filename,image_info->filename,
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MaxTextExtent);
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if (EOFBlob(image) != MagickFalse)
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{
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ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
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image->filename);
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break;
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}
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/*
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Proceed to next image.
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*/
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if (image_info->number_scenes != 0)
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if (image->scene >= (image_info->scene+image_info->number_scenes-1))
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break;
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if (interlace == NoInterlace)
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count=ReadBlob(image,(size_t) (2*quantum*image->columns),scanline);
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else
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count=ReadBlob(image,(size_t) quantum*image->columns,scanline);
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if (count != 0)
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{
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/*
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Allocate next image structure.
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*/
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AcquireNextImage(image_info,image);
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if (GetNextImageInList(image) == (Image *) NULL)
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{
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status=MagickFalse;
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break;
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}
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image=SyncNextImageInList(image);
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status=SetImageProgress(image,LoadImagesTag,TellBlob(image),
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GetBlobSize(image));
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if (status == MagickFalse)
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break;
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}
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} while (count != 0);
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scanline=(unsigned char *) RelinquishMagickMemory(scanline);
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InheritException(exception,&image->exception);
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(void) CloseBlob(image);
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if (status == MagickFalse)
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return(DestroyImageList(image));
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return(GetFirstImageInList(image));
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}
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/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
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% %
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||
% %
|
||
% %
|
||
% R e g i s t e r Y U V I m a g e %
|
||
% %
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||
% %
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||
% %
|
||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
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%
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% RegisterYUVImage() adds attributes for the YUV image format to
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% the list of supported formats. The attributes include the image format
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% tag, a method to read and/or write the format, whether the format
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% supports the saving of more than one frame to the same file or blob,
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% whether the format supports native in-memory I/O, and a brief
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% description of the format.
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%
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% The format of the RegisterYUVImage method is:
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||
%
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% size_t RegisterYUVImage(void)
|
||
%
|
||
*/
|
||
ModuleExport size_t RegisterYUVImage(void)
|
||
{
|
||
MagickInfo
|
||
*entry;
|
||
|
||
entry=SetMagickInfo("YUV");
|
||
entry->decoder=(DecodeImageHandler *) ReadYUVImage;
|
||
entry->encoder=(EncodeImageHandler *) WriteYUVImage;
|
||
entry->adjoin=MagickFalse;
|
||
entry->raw=MagickTrue;
|
||
entry->description=ConstantString("CCIR 601 4:1:1 or 4:2:2");
|
||
entry->magick_module=ConstantString("YUV");
|
||
(void) RegisterMagickInfo(entry);
|
||
return(MagickImageCoderSignature);
|
||
}
|
||
|
||
/*
|
||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||
% %
|
||
% %
|
||
% %
|
||
% U n r e g i s t e r Y U V I m a g e %
|
||
% %
|
||
% %
|
||
% %
|
||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||
%
|
||
% UnregisterYUVImage() removes format registrations made by the
|
||
% YUV module from the list of supported formats.
|
||
%
|
||
% The format of the UnregisterYUVImage method is:
|
||
%
|
||
% UnregisterYUVImage(void)
|
||
%
|
||
*/
|
||
ModuleExport void UnregisterYUVImage(void)
|
||
{
|
||
(void) UnregisterMagickInfo("YUV");
|
||
}
|
||
|
||
/*
|
||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||
% %
|
||
% %
|
||
% %
|
||
% W r i t e Y U V I m a g e %
|
||
% %
|
||
% %
|
||
% %
|
||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||
%
|
||
% WriteYUVImage() writes an image to a file in the digital YUV
|
||
% (CCIR 601 4:1:1, plane or partition interlaced, or 4:2:2 plane, partition
|
||
% interlaced or noninterlaced) bytes and returns it.
|
||
%
|
||
% The format of the WriteYUVImage method is:
|
||
%
|
||
% MagickBooleanType WriteYUVImage(const ImageInfo *image_info,Image *image)
|
||
%
|
||
% A description of each parameter follows.
|
||
%
|
||
% o image_info: the image info.
|
||
%
|
||
% o image: The image.
|
||
%
|
||
*/
|
||
static MagickBooleanType WriteYUVImage(const ImageInfo *image_info,Image *image)
|
||
{
|
||
Image
|
||
*chroma_image,
|
||
*yuv_image;
|
||
|
||
InterlaceType
|
||
interlace;
|
||
|
||
MagickBooleanType
|
||
status;
|
||
|
||
MagickOffsetType
|
||
scene;
|
||
|
||
const PixelPacket
|
||
*p,
|
||
*s;
|
||
|
||
ssize_t
|
||
x;
|
||
|
||
size_t
|
||
height,
|
||
imageListLength,
|
||
quantum,
|
||
width;
|
||
|
||
ssize_t
|
||
horizontal_factor,
|
||
vertical_factor,
|
||
y;
|
||
|
||
assert(image_info != (const ImageInfo *) NULL);
|
||
assert(image_info->signature == MagickCoreSignature);
|
||
assert(image != (Image *) NULL);
|
||
assert(image->signature == MagickCoreSignature);
|
||
if (image->debug != MagickFalse)
|
||
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
|
||
quantum=(size_t) (image->depth <= 8 ? 1 : 2);
|
||
interlace=image->interlace;
|
||
horizontal_factor=2;
|
||
vertical_factor=2;
|
||
if (image_info->sampling_factor != (char *) NULL)
|
||
{
|
||
GeometryInfo
|
||
geometry_info;
|
||
|
||
MagickStatusType
|
||
flags;
|
||
|
||
flags=ParseGeometry(image_info->sampling_factor,&geometry_info);
|
||
horizontal_factor=(ssize_t) geometry_info.rho;
|
||
vertical_factor=(ssize_t) geometry_info.sigma;
|
||
if ((flags & SigmaValue) == 0)
|
||
vertical_factor=horizontal_factor;
|
||
if ((horizontal_factor != 1) && (horizontal_factor != 2) &&
|
||
(vertical_factor != 1) && (vertical_factor != 2))
|
||
ThrowWriterException(CorruptImageError,"UnexpectedSamplingFactor");
|
||
}
|
||
if ((interlace == UndefinedInterlace) ||
|
||
((interlace == NoInterlace) && (vertical_factor == 2)))
|
||
{
|
||
interlace=NoInterlace; /* CCIR 4:2:2 */
|
||
if (vertical_factor == 2)
|
||
interlace=PlaneInterlace; /* CCIR 4:1:1 */
|
||
}
|
||
if (interlace != PartitionInterlace)
|
||
{
|
||
/*
|
||
Open output image file.
|
||
*/
|
||
status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception);
|
||
if (status == MagickFalse)
|
||
return(status);
|
||
}
|
||
else
|
||
{
|
||
AppendImageFormat("Y",image->filename);
|
||
status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception);
|
||
if (status == MagickFalse)
|
||
return(status);
|
||
}
|
||
scene=0;
|
||
imageListLength=GetImageListLength(image);
|
||
do
|
||
{
|
||
/*
|
||
Sample image to an even width and height, if necessary.
|
||
*/
|
||
image->depth=(size_t) (quantum == 1 ? 8 : 16);
|
||
width=image->columns+(image->columns & (horizontal_factor-1));
|
||
height=image->rows+(image->rows & (vertical_factor-1));
|
||
yuv_image=ResizeImage(image,width,height,TriangleFilter,1.0,
|
||
&image->exception);
|
||
if (yuv_image == (Image *) NULL)
|
||
ThrowWriterException(ResourceLimitError,image->exception.reason);
|
||
(void) TransformImageColorspace(yuv_image,YCbCrColorspace);
|
||
/*
|
||
Downsample image.
|
||
*/
|
||
chroma_image=ResizeImage(image,width/horizontal_factor,
|
||
height/vertical_factor,TriangleFilter,1.0,&image->exception);
|
||
if (chroma_image == (Image *) NULL)
|
||
ThrowWriterException(ResourceLimitError,image->exception.reason);
|
||
(void) TransformImageColorspace(chroma_image,YCbCrColorspace);
|
||
if (interlace == NoInterlace)
|
||
{
|
||
/*
|
||
Write noninterlaced YUV.
|
||
*/
|
||
for (y=0; y < (ssize_t) yuv_image->rows; y++)
|
||
{
|
||
p=GetVirtualPixels(yuv_image,0,y,yuv_image->columns,1,
|
||
&yuv_image->exception);
|
||
if (p == (const PixelPacket *) NULL)
|
||
break;
|
||
s=GetVirtualPixels(chroma_image,0,y,chroma_image->columns,1,
|
||
&chroma_image->exception);
|
||
if (s == (const PixelPacket *) NULL)
|
||
break;
|
||
for (x=0; x < (ssize_t) yuv_image->columns; x+=2)
|
||
{
|
||
if (quantum == 1)
|
||
{
|
||
(void) WriteBlobByte(image,ScaleQuantumToChar(
|
||
GetPixelGreen(s)));
|
||
(void) WriteBlobByte(image,ScaleQuantumToChar(GetPixelRed(p)));
|
||
p++;
|
||
(void) WriteBlobByte(image,ScaleQuantumToChar(GetPixelBlue(s)));
|
||
(void) WriteBlobByte(image,ScaleQuantumToChar(GetPixelRed(p)));
|
||
}
|
||
else
|
||
{
|
||
(void) WriteBlobByte(image,ScaleQuantumToChar(
|
||
GetPixelGreen(s)));
|
||
(void) WriteBlobShort(image,ScaleQuantumToShort(
|
||
GetPixelRed(p)));
|
||
p++;
|
||
(void) WriteBlobByte(image,ScaleQuantumToChar(GetPixelBlue(s)));
|
||
(void) WriteBlobShort(image,ScaleQuantumToShort(
|
||
GetPixelRed(p)));
|
||
}
|
||
p++;
|
||
s++;
|
||
}
|
||
if (image->previous == (Image *) NULL)
|
||
{
|
||
status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
|
||
image->rows);
|
||
if (status == MagickFalse)
|
||
break;
|
||
}
|
||
}
|
||
yuv_image=DestroyImage(yuv_image);
|
||
}
|
||
else
|
||
{
|
||
/*
|
||
Initialize Y channel.
|
||
*/
|
||
for (y=0; y < (ssize_t) yuv_image->rows; y++)
|
||
{
|
||
p=GetVirtualPixels(yuv_image,0,y,yuv_image->columns,1,
|
||
&yuv_image->exception);
|
||
if (p == (const PixelPacket *) NULL)
|
||
break;
|
||
for (x=0; x < (ssize_t) yuv_image->columns; x++)
|
||
{
|
||
if (quantum == 1)
|
||
(void) WriteBlobByte(image,ScaleQuantumToChar(GetPixelRed(p)));
|
||
else
|
||
(void) WriteBlobShort(image,ScaleQuantumToShort(GetPixelRed(p)));
|
||
p++;
|
||
}
|
||
if (image->previous == (Image *) NULL)
|
||
{
|
||
status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
|
||
image->rows);
|
||
if (status == MagickFalse)
|
||
break;
|
||
}
|
||
}
|
||
yuv_image=DestroyImage(yuv_image);
|
||
if (image->previous == (Image *) NULL)
|
||
{
|
||
status=SetImageProgress(image,SaveImageTag,1,3);
|
||
if (status == MagickFalse)
|
||
break;
|
||
}
|
||
/*
|
||
Initialize U channel.
|
||
*/
|
||
if (interlace == PartitionInterlace)
|
||
{
|
||
(void) CloseBlob(image);
|
||
AppendImageFormat("U",image->filename);
|
||
status=OpenBlob(image_info,image,WriteBinaryBlobMode,
|
||
&image->exception);
|
||
if (status == MagickFalse)
|
||
return(status);
|
||
}
|
||
for (y=0; y < (ssize_t) chroma_image->rows; y++)
|
||
{
|
||
p=GetVirtualPixels(chroma_image,0,y,chroma_image->columns,1,
|
||
&chroma_image->exception);
|
||
if (p == (const PixelPacket *) NULL)
|
||
break;
|
||
for (x=0; x < (ssize_t) chroma_image->columns; x++)
|
||
{
|
||
if (quantum == 1)
|
||
(void) WriteBlobByte(image,ScaleQuantumToChar(GetPixelGreen(p)));
|
||
else
|
||
(void) WriteBlobShort(image,ScaleQuantumToShort(
|
||
GetPixelGreen(p)));
|
||
p++;
|
||
}
|
||
}
|
||
if (image->previous == (Image *) NULL)
|
||
{
|
||
status=SetImageProgress(image,SaveImageTag,2,3);
|
||
if (status == MagickFalse)
|
||
break;
|
||
}
|
||
/*
|
||
Initialize V channel.
|
||
*/
|
||
if (interlace == PartitionInterlace)
|
||
{
|
||
(void) CloseBlob(image);
|
||
AppendImageFormat("V",image->filename);
|
||
status=OpenBlob(image_info,image,WriteBinaryBlobMode,
|
||
&image->exception);
|
||
if (status == MagickFalse)
|
||
return(status);
|
||
}
|
||
for (y=0; y < (ssize_t) chroma_image->rows; y++)
|
||
{
|
||
p=GetVirtualPixels(chroma_image,0,y,chroma_image->columns,1,
|
||
&chroma_image->exception);
|
||
if (p == (const PixelPacket *) NULL)
|
||
break;
|
||
for (x=0; x < (ssize_t) chroma_image->columns; x++)
|
||
{
|
||
if (quantum == 1)
|
||
(void) WriteBlobByte(image,ScaleQuantumToChar(GetPixelBlue(p)));
|
||
else
|
||
(void) WriteBlobShort(image,ScaleQuantumToShort(GetPixelBlue(p)));
|
||
p++;
|
||
}
|
||
}
|
||
if (image->previous == (Image *) NULL)
|
||
{
|
||
status=SetImageProgress(image,SaveImageTag,2,3);
|
||
if (status == MagickFalse)
|
||
break;
|
||
}
|
||
}
|
||
chroma_image=DestroyImage(chroma_image);
|
||
if (interlace == PartitionInterlace)
|
||
(void) CopyMagickString(image->filename,image_info->filename,
|
||
MaxTextExtent);
|
||
if (GetNextImageInList(image) == (Image *) NULL)
|
||
break;
|
||
image=SyncNextImageInList(image);
|
||
status=SetImageProgress(image,SaveImagesTag,scene++,imageListLength);
|
||
if (status == MagickFalse)
|
||
break;
|
||
} while (image_info->adjoin != MagickFalse);
|
||
(void) CloseBlob(image);
|
||
return(MagickTrue);
|
||
}
|