|
|
/*
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
% Y Y U U V V %
|
|
|
% Y Y U U V V %
|
|
|
% Y U U V V %
|
|
|
% Y U U V V %
|
|
|
% Y UUU V %
|
|
|
% %
|
|
|
% %
|
|
|
% Read/Write Raw CCIR 601 4:1:1 or 4:2:2 Image Format %
|
|
|
% %
|
|
|
% Software Design %
|
|
|
% Cristy %
|
|
|
% July 1992 %
|
|
|
% %
|
|
|
% %
|
|
|
% Copyright 1999-2021 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/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. %
|
|
|
% %
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
%
|
|
|
%
|
|
|
*/
|
|
|
|
|
|
/*
|
|
|
Include declarations.
|
|
|
*/
|
|
|
#include "MagickCore/studio.h"
|
|
|
#include "MagickCore/blob.h"
|
|
|
#include "MagickCore/blob-private.h"
|
|
|
#include "MagickCore/cache.h"
|
|
|
#include "MagickCore/colorspace.h"
|
|
|
#include "MagickCore/constitute.h"
|
|
|
#include "MagickCore/exception.h"
|
|
|
#include "MagickCore/exception-private.h"
|
|
|
#include "MagickCore/geometry.h"
|
|
|
#include "MagickCore/image.h"
|
|
|
#include "MagickCore/image-private.h"
|
|
|
#include "MagickCore/list.h"
|
|
|
#include "MagickCore/magick.h"
|
|
|
#include "MagickCore/memory_.h"
|
|
|
#include "MagickCore/monitor.h"
|
|
|
#include "MagickCore/monitor-private.h"
|
|
|
#include "MagickCore/pixel-accessor.h"
|
|
|
#include "MagickCore/resize.h"
|
|
|
#include "MagickCore/quantum-private.h"
|
|
|
#include "MagickCore/static.h"
|
|
|
#include "MagickCore/string_.h"
|
|
|
#include "MagickCore/module.h"
|
|
|
#include "MagickCore/utility.h"
|
|
|
|
|
|
/*
|
|
|
Forward declarations.
|
|
|
*/
|
|
|
static MagickBooleanType
|
|
|
WriteYUVImage(const ImageInfo *,Image *,ExceptionInfo *);
|
|
|
|
|
|
/*
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
% R e a d Y U V I m a g e %
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
%
|
|
|
% ReadYUVImage() reads an image with digital YUV (CCIR 601 4:1:1, plane
|
|
|
% or partition interlaced, or 4:2:2 plane, partition interlaced or
|
|
|
% noninterlaced) bytes and returns it. It allocates the memory necessary
|
|
|
% for the new Image structure and returns a pointer to the new image.
|
|
|
%
|
|
|
% The format of the ReadYUVImage method is:
|
|
|
%
|
|
|
% Image *ReadYUVImage(const ImageInfo *image_info,ExceptionInfo *exception)
|
|
|
%
|
|
|
% A description of each parameter follows:
|
|
|
%
|
|
|
% o image_info: the image info.
|
|
|
%
|
|
|
% o exception: return any errors or warnings in this structure.
|
|
|
%
|
|
|
*/
|
|
|
static Image *ReadYUVImage(const ImageInfo *image_info,ExceptionInfo *exception)
|
|
|
{
|
|
|
Image
|
|
|
*chroma_image,
|
|
|
*image,
|
|
|
*resize_image;
|
|
|
|
|
|
InterlaceType
|
|
|
interlace;
|
|
|
|
|
|
MagickBooleanType
|
|
|
status;
|
|
|
|
|
|
ssize_t
|
|
|
x;
|
|
|
|
|
|
Quantum
|
|
|
*q;
|
|
|
|
|
|
unsigned char
|
|
|
*p;
|
|
|
|
|
|
ssize_t
|
|
|
count,
|
|
|
horizontal_factor,
|
|
|
vertical_factor,
|
|
|
y;
|
|
|
|
|
|
size_t
|
|
|
length,
|
|
|
quantum;
|
|
|
|
|
|
unsigned char
|
|
|
*scanline;
|
|
|
|
|
|
/*
|
|
|
Allocate image structure.
|
|
|
*/
|
|
|
assert(image_info != (const ImageInfo *) NULL);
|
|
|
assert(image_info->signature == MagickCoreSignature);
|
|
|
if (image_info->debug != MagickFalse)
|
|
|
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
|
|
|
image_info->filename);
|
|
|
assert(exception != (ExceptionInfo *) NULL);
|
|
|
assert(exception->signature == MagickCoreSignature);
|
|
|
image=AcquireImage(image_info,exception);
|
|
|
if ((image->columns == 0) || (image->rows == 0))
|
|
|
ThrowReaderException(OptionError,"MustSpecifyImageSize");
|
|
|
status=SetImageExtent(image,image->columns,image->rows,exception);
|
|
|
if (status == MagickFalse)
|
|
|
return(DestroyImageList(image));
|
|
|
quantum=(ssize_t) (image->depth <= 8 ? 1 : 2);
|
|
|
interlace=image_info->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))
|
|
|
ThrowReaderException(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 image file.
|
|
|
*/
|
|
|
status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
|
|
|
if (status == MagickFalse)
|
|
|
{
|
|
|
image=DestroyImageList(image);
|
|
|
return((Image *) NULL);
|
|
|
}
|
|
|
if (DiscardBlobBytes(image,(MagickSizeType) image->offset) == MagickFalse)
|
|
|
ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
|
|
|
image->filename);
|
|
|
}
|
|
|
/*
|
|
|
Allocate memory for a scanline.
|
|
|
*/
|
|
|
if (interlace == NoInterlace)
|
|
|
scanline=(unsigned char *) AcquireQuantumMemory((size_t) (2UL*
|
|
|
image->columns+2UL),(size_t) quantum*sizeof(*scanline));
|
|
|
else
|
|
|
scanline=(unsigned char *) AcquireQuantumMemory(image->columns,
|
|
|
(size_t) quantum*sizeof(*scanline));
|
|
|
if (scanline == (unsigned char *) NULL)
|
|
|
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
|
|
|
status=MagickTrue;
|
|
|
do
|
|
|
{
|
|
|
chroma_image=CloneImage(image,(image->columns+horizontal_factor-1)/
|
|
|
horizontal_factor,(image->rows+vertical_factor-1)/vertical_factor,
|
|
|
MagickTrue,exception);
|
|
|
if (chroma_image == (Image *) NULL)
|
|
|
{
|
|
|
scanline=(unsigned char *) RelinquishMagickMemory(scanline);
|
|
|
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
|
|
|
}
|
|
|
/*
|
|
|
Convert raster image to pixel packets.
|
|
|
*/
|
|
|
if ((image_info->ping != MagickFalse) && (image_info->number_scenes != 0))
|
|
|
if (image->scene >= (image_info->scene+image_info->number_scenes-1))
|
|
|
break;
|
|
|
status=SetImageExtent(image,image->columns,image->rows,exception);
|
|
|
if (status == MagickFalse)
|
|
|
break;
|
|
|
if (interlace == PartitionInterlace)
|
|
|
{
|
|
|
AppendImageFormat("Y",image->filename);
|
|
|
status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
|
|
|
if (status == MagickFalse)
|
|
|
{
|
|
|
scanline=(unsigned char *) RelinquishMagickMemory(scanline);
|
|
|
image=DestroyImageList(image);
|
|
|
return((Image *) NULL);
|
|
|
}
|
|
|
}
|
|
|
for (y=0; y < (ssize_t) image->rows; y++)
|
|
|
{
|
|
|
Quantum
|
|
|
*chroma_pixels;
|
|
|
|
|
|
if (interlace == NoInterlace)
|
|
|
{
|
|
|
if ((y > 0) || (GetPreviousImageInList(image) == (Image *) NULL))
|
|
|
{
|
|
|
length=2*quantum*image->columns;
|
|
|
count=ReadBlob(image,length,scanline);
|
|
|
if (count != (ssize_t) length)
|
|
|
{
|
|
|
status=MagickFalse;
|
|
|
ThrowFileException(exception,CorruptImageError,
|
|
|
"UnexpectedEndOfFile",image->filename);
|
|
|
break;
|
|
|
}
|
|
|
}
|
|
|
p=scanline;
|
|
|
q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
|
|
|
if (q == (Quantum *) NULL)
|
|
|
break;
|
|
|
chroma_pixels=QueueAuthenticPixels(chroma_image,0,y,
|
|
|
chroma_image->columns,1,exception);
|
|
|
if (chroma_pixels == (Quantum *) NULL)
|
|
|
break;
|
|
|
for (x=0; x < (ssize_t) image->columns; x+=2)
|
|
|
{
|
|
|
SetPixelRed(chroma_image,0,chroma_pixels);
|
|
|
if (quantum == 1)
|
|
|
SetPixelGreen(chroma_image,ScaleCharToQuantum(*p++),
|
|
|
chroma_pixels);
|
|
|
else
|
|
|
{
|
|
|
SetPixelGreen(chroma_image,ScaleShortToQuantum(((*p) << 8) |
|
|
|
*(p+1)),chroma_pixels);
|
|
|
p+=2;
|
|
|
}
|
|
|
if (quantum == 1)
|
|
|
SetPixelRed(image,ScaleCharToQuantum(*p++),q);
|
|
|
else
|
|
|
{
|
|
|
SetPixelRed(image,ScaleShortToQuantum(((*p) << 8) | *(p+1)),q);
|
|
|
p+=2;
|
|
|
}
|
|
|
SetPixelGreen(image,0,q);
|
|
|
SetPixelBlue(image,0,q);
|
|
|
q+=GetPixelChannels(image);
|
|
|
SetPixelGreen(image,0,q);
|
|
|
SetPixelBlue(image,0,q);
|
|
|
if (quantum == 1)
|
|
|
SetPixelBlue(chroma_image,ScaleCharToQuantum(*p++),chroma_pixels);
|
|
|
else
|
|
|
{
|
|
|
SetPixelBlue(chroma_image,ScaleShortToQuantum(((*p) << 8) |
|
|
|
*(p+1)),chroma_pixels);
|
|
|
p+=2;
|
|
|
}
|
|
|
if (quantum == 1)
|
|
|
SetPixelRed(image,ScaleCharToQuantum(*p++),q);
|
|
|
else
|
|
|
{
|
|
|
SetPixelRed(image,ScaleShortToQuantum(((*p) << 8) | *(p+1)),q);
|
|
|
p+=2;
|
|
|
}
|
|
|
chroma_pixels+=GetPixelChannels(chroma_image);
|
|
|
q+=GetPixelChannels(image);
|
|
|
}
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
if ((y > 0) || (GetPreviousImageInList(image) == (Image *) NULL))
|
|
|
{
|
|
|
length=quantum*image->columns;
|
|
|
count=ReadBlob(image,length,scanline);
|
|
|
if (count != (ssize_t) length)
|
|
|
{
|
|
|
status=MagickFalse;
|
|
|
ThrowFileException(exception,CorruptImageError,
|
|
|
"UnexpectedEndOfFile",image->filename);
|
|
|
break;
|
|
|
}
|
|
|
}
|
|
|
p=scanline;
|
|
|
q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
|
|
|
if (q == (Quantum *) NULL)
|
|
|
break;
|
|
|
for (x=0; x < (ssize_t) image->columns; x++)
|
|
|
{
|
|
|
if (quantum == 1)
|
|
|
SetPixelRed(image,ScaleCharToQuantum(*p++),q);
|
|
|
else
|
|
|
{
|
|
|
SetPixelRed(image,ScaleShortToQuantum(((*p) << 8) | *(p+1)),q);
|
|
|
p+=2;
|
|
|
}
|
|
|
SetPixelGreen(image,0,q);
|
|
|
SetPixelBlue(image,0,q);
|
|
|
q+=GetPixelChannels(image);
|
|
|
}
|
|
|
}
|
|
|
if (SyncAuthenticPixels(image,exception) == MagickFalse)
|
|
|
break;
|
|
|
if (interlace == NoInterlace)
|
|
|
if (SyncAuthenticPixels(chroma_image,exception) == MagickFalse)
|
|
|
break;
|
|
|
if (image->previous == (Image *) NULL)
|
|
|
{
|
|
|
status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y,
|
|
|
image->rows);
|
|
|
if (status == MagickFalse)
|
|
|
break;
|
|
|
}
|
|
|
}
|
|
|
if (interlace == PartitionInterlace)
|
|
|
{
|
|
|
(void) CloseBlob(image);
|
|
|
AppendImageFormat("U",image->filename);
|
|
|
status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
|
|
|
if (status == MagickFalse)
|
|
|
{
|
|
|
scanline=(unsigned char *) RelinquishMagickMemory(scanline);
|
|
|
image=DestroyImageList(image);
|
|
|
return((Image *) NULL);
|
|
|
}
|
|
|
}
|
|
|
if (interlace != NoInterlace)
|
|
|
{
|
|
|
for (y=0; y < (ssize_t) chroma_image->rows; y++)
|
|
|
{
|
|
|
length=quantum*chroma_image->columns;
|
|
|
count=ReadBlob(image,length,scanline);
|
|
|
if (count != (ssize_t) length)
|
|
|
{
|
|
|
status=MagickFalse;
|
|
|
ThrowFileException(exception,CorruptImageError,
|
|
|
"UnexpectedEndOfFile",image->filename);
|
|
|
break;
|
|
|
}
|
|
|
p=scanline;
|
|
|
q=QueueAuthenticPixels(chroma_image,0,y,chroma_image->columns,1,
|
|
|
exception);
|
|
|
if (q == (Quantum *) NULL)
|
|
|
break;
|
|
|
for (x=0; x < (ssize_t) chroma_image->columns; x++)
|
|
|
{
|
|
|
SetPixelRed(chroma_image,0,q);
|
|
|
if (quantum == 1)
|
|
|
SetPixelGreen(chroma_image,ScaleCharToQuantum(*p++),q);
|
|
|
else
|
|
|
{
|
|
|
SetPixelGreen(chroma_image,ScaleShortToQuantum(((*p) << 8) |
|
|
|
*(p+1)),q);
|
|
|
p+=2;
|
|
|
}
|
|
|
SetPixelBlue(chroma_image,0,q);
|
|
|
q+=GetPixelChannels(chroma_image);
|
|
|
}
|
|
|
if (SyncAuthenticPixels(chroma_image,exception) == MagickFalse)
|
|
|
break;
|
|
|
}
|
|
|
if (interlace == PartitionInterlace)
|
|
|
{
|
|
|
(void) CloseBlob(image);
|
|
|
AppendImageFormat("V",image->filename);
|
|
|
status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
|
|
|
if (status == MagickFalse)
|
|
|
{
|
|
|
scanline=(unsigned char *) RelinquishMagickMemory(scanline);
|
|
|
image=DestroyImageList(image);
|
|
|
return((Image *) NULL);
|
|
|
}
|
|
|
}
|
|
|
for (y=0; y < (ssize_t) chroma_image->rows; y++)
|
|
|
{
|
|
|
length=quantum*chroma_image->columns;
|
|
|
count=ReadBlob(image,length,scanline);
|
|
|
if (count != (ssize_t) length)
|
|
|
{
|
|
|
status=MagickFalse;
|
|
|
ThrowFileException(exception,CorruptImageError,
|
|
|
"UnexpectedEndOfFile",image->filename);
|
|
|
break;
|
|
|
}
|
|
|
p=scanline;
|
|
|
q=GetAuthenticPixels(chroma_image,0,y,chroma_image->columns,1,
|
|
|
exception);
|
|
|
if (q == (Quantum *) NULL)
|
|
|
break;
|
|
|
for (x=0; x < (ssize_t) chroma_image->columns; x++)
|
|
|
{
|
|
|
if (quantum == 1)
|
|
|
SetPixelBlue(chroma_image,ScaleCharToQuantum(*p++),q);
|
|
|
else
|
|
|
{
|
|
|
SetPixelBlue(chroma_image,ScaleShortToQuantum(((*p) << 8) |
|
|
|
*(p+1)),q);
|
|
|
p+=2;
|
|
|
}
|
|
|
q+=GetPixelChannels(chroma_image);
|
|
|
}
|
|
|
if (SyncAuthenticPixels(chroma_image,exception) == MagickFalse)
|
|
|
break;
|
|
|
}
|
|
|
}
|
|
|
/*
|
|
|
Scale image.
|
|
|
*/
|
|
|
resize_image=ResizeImage(chroma_image,image->columns,image->rows,
|
|
|
TriangleFilter,exception);
|
|
|
chroma_image=DestroyImage(chroma_image);
|
|
|
if (resize_image == (Image *) NULL)
|
|
|
{
|
|
|
scanline=(unsigned char *) RelinquishMagickMemory(scanline);
|
|
|
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
|
|
|
}
|
|
|
for (y=0; y < (ssize_t) image->rows; y++)
|
|
|
{
|
|
|
const Quantum
|
|
|
*chroma_pixels;
|
|
|
|
|
|
q=GetAuthenticPixels(image,0,y,image->columns,1,exception);
|
|
|
chroma_pixels=GetVirtualPixels(resize_image,0,y,resize_image->columns,1,
|
|
|
exception);
|
|
|
if ((q == (Quantum *) NULL) ||
|
|
|
(chroma_pixels == (const Quantum *) NULL))
|
|
|
break;
|
|
|
for (x=0; x < (ssize_t) image->columns; x++)
|
|
|
{
|
|
|
SetPixelGreen(image,GetPixelGreen(resize_image,chroma_pixels),q);
|
|
|
SetPixelBlue(image,GetPixelBlue(resize_image,chroma_pixels),q);
|
|
|
chroma_pixels+=GetPixelChannels(resize_image);
|
|
|
q+=GetPixelChannels(image);
|
|
|
}
|
|
|
if (SyncAuthenticPixels(image,exception) == MagickFalse)
|
|
|
break;
|
|
|
}
|
|
|
resize_image=DestroyImage(resize_image);
|
|
|
if (SetImageColorspace(image,YCbCrColorspace,exception) == MagickFalse)
|
|
|
break;
|
|
|
if (interlace == PartitionInterlace)
|
|
|
(void) CopyMagickString(image->filename,image_info->filename,
|
|
|
MagickPathExtent);
|
|
|
if (EOFBlob(image) != MagickFalse)
|
|
|
{
|
|
|
ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
|
|
|
image->filename);
|
|
|
break;
|
|
|
}
|
|
|
/*
|
|
|
Proceed to next image.
|
|
|
*/
|
|
|
if (image_info->number_scenes != 0)
|
|
|
if (image->scene >= (image_info->scene+image_info->number_scenes-1))
|
|
|
break;
|
|
|
if (interlace == NoInterlace)
|
|
|
count=ReadBlob(image,(size_t) (2*quantum*image->columns),scanline);
|
|
|
else
|
|
|
count=ReadBlob(image,(size_t) quantum*image->columns,scanline);
|
|
|
if (count != 0)
|
|
|
{
|
|
|
/*
|
|
|
Allocate next image structure.
|
|
|
*/
|
|
|
AcquireNextImage(image_info,image,exception);
|
|
|
if (GetNextImageInList(image) == (Image *) NULL)
|
|
|
{
|
|
|
status=MagickFalse;
|
|
|
break;
|
|
|
}
|
|
|
image=SyncNextImageInList(image);
|
|
|
status=SetImageProgress(image,LoadImagesTag,TellBlob(image),
|
|
|
GetBlobSize(image));
|
|
|
if (status == MagickFalse)
|
|
|
break;
|
|
|
}
|
|
|
} while (count != 0);
|
|
|
scanline=(unsigned char *) RelinquishMagickMemory(scanline);
|
|
|
(void) CloseBlob(image);
|
|
|
if (status == MagickFalse)
|
|
|
return(DestroyImageList(image));
|
|
|
return(GetFirstImageInList(image));
|
|
|
}
|
|
|
|
|
|
/*
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
% R e g i s t e r Y U V I m a g e %
|
|
|
% %
|
|
|
% %
|
|
|
% %
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
%
|
|
|
% RegisterYUVImage() adds attributes for the YUV image format to
|
|
|
% the list of supported formats. The attributes include the image format
|
|
|
% tag, a method to read and/or write the format, whether the format
|
|
|
% supports the saving of more than one frame to the same file or blob,
|
|
|
% whether the format supports native in-memory I/O, and a brief
|
|
|
% description of the format.
|
|
|
%
|
|
|
% The format of the RegisterYUVImage method is:
|
|
|
%
|
|
|
% size_t RegisterYUVImage(void)
|
|
|
%
|
|
|
*/
|
|
|
ModuleExport size_t RegisterYUVImage(void)
|
|
|
{
|
|
|
MagickInfo
|
|
|
*entry;
|
|
|
|
|
|
entry=AcquireMagickInfo("YUV","YUV","CCIR 601 4:1:1 or 4:2:2");
|
|
|
entry->decoder=(DecodeImageHandler *) ReadYUVImage;
|
|
|
entry->encoder=(EncodeImageHandler *) WriteYUVImage;
|
|
|
entry->flags^=CoderAdjoinFlag;
|
|
|
entry->flags|=CoderRawSupportFlag;
|
|
|
(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,ExceptionInfo *exception)
|
|
|
%
|
|
|
% A description of each parameter follows.
|
|
|
%
|
|
|
% o image_info: the image info.
|
|
|
%
|
|
|
% o image: The image.
|
|
|
%
|
|
|
% o exception: return any errors or warnings in this structure.
|
|
|
%
|
|
|
*/
|
|
|
static MagickBooleanType WriteYUVImage(const ImageInfo *image_info,Image *image,
|
|
|
ExceptionInfo *exception)
|
|
|
{
|
|
|
Image
|
|
|
*chroma_image,
|
|
|
*yuv_image;
|
|
|
|
|
|
InterlaceType
|
|
|
interlace;
|
|
|
|
|
|
MagickBooleanType
|
|
|
status;
|
|
|
|
|
|
MagickOffsetType
|
|
|
scene;
|
|
|
|
|
|
const Quantum
|
|
|
*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,exception);
|
|
|
if (status == MagickFalse)
|
|
|
return(status);
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
AppendImageFormat("Y",image->filename);
|
|
|
status=OpenBlob(image_info,image,WriteBinaryBlobMode,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,exception);
|
|
|
if (yuv_image == (Image *) NULL)
|
|
|
{
|
|
|
(void) CloseBlob(image);
|
|
|
return(MagickFalse);
|
|
|
}
|
|
|
(void) TransformImageColorspace(yuv_image,YCbCrColorspace,exception);
|
|
|
/*
|
|
|
Downsample image.
|
|
|
*/
|
|
|
chroma_image=ResizeImage(image,width/horizontal_factor,
|
|
|
height/vertical_factor,TriangleFilter,exception);
|
|
|
if (chroma_image == (Image *) NULL)
|
|
|
{
|
|
|
(void) CloseBlob(image);
|
|
|
return(MagickFalse);
|
|
|
}
|
|
|
(void) TransformImageColorspace(chroma_image,YCbCrColorspace,exception);
|
|
|
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,exception);
|
|
|
if (p == (const Quantum *) NULL)
|
|
|
break;
|
|
|
s=GetVirtualPixels(chroma_image,0,y,chroma_image->columns,1,
|
|
|
exception);
|
|
|
if (s == (const Quantum *) NULL)
|
|
|
break;
|
|
|
for (x=0; x < (ssize_t) yuv_image->columns; x+=2)
|
|
|
{
|
|
|
if (quantum == 1)
|
|
|
{
|
|
|
(void) WriteBlobByte(image,ScaleQuantumToChar(
|
|
|
GetPixelGreen(yuv_image,s)));
|
|
|
(void) WriteBlobByte(image,ScaleQuantumToChar(
|
|
|
GetPixelRed(yuv_image,p)));
|
|
|
p+=GetPixelChannels(yuv_image);
|
|
|
(void) WriteBlobByte(image,ScaleQuantumToChar(
|
|
|
GetPixelBlue(yuv_image,s)));
|
|
|
(void) WriteBlobByte(image,ScaleQuantumToChar(
|
|
|
GetPixelRed(yuv_image,p)));
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
(void) WriteBlobByte(image,ScaleQuantumToChar(
|
|
|
GetPixelGreen(yuv_image,s)));
|
|
|
(void) WriteBlobShort(image,ScaleQuantumToShort(
|
|
|
GetPixelRed(yuv_image,p)));
|
|
|
p+=GetPixelChannels(yuv_image);
|
|
|
(void) WriteBlobByte(image,ScaleQuantumToChar(
|
|
|
GetPixelBlue(yuv_image,s)));
|
|
|
(void) WriteBlobShort(image,ScaleQuantumToShort(
|
|
|
GetPixelRed(yuv_image,p)));
|
|
|
}
|
|
|
p+=GetPixelChannels(yuv_image);
|
|
|
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,exception);
|
|
|
if (p == (const Quantum *) NULL)
|
|
|
break;
|
|
|
for (x=0; x < (ssize_t) yuv_image->columns; x++)
|
|
|
{
|
|
|
if (quantum == 1)
|
|
|
(void) WriteBlobByte(image,ScaleQuantumToChar(
|
|
|
GetPixelRed(yuv_image,p)));
|
|
|
else
|
|
|
(void) WriteBlobShort(image,ScaleQuantumToShort(
|
|
|
GetPixelRed(yuv_image,p)));
|
|
|
p+=GetPixelChannels(yuv_image);
|
|
|
}
|
|
|
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,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,
|
|
|
exception);
|
|
|
if (p == (const Quantum *) NULL)
|
|
|
break;
|
|
|
for (x=0; x < (ssize_t) chroma_image->columns; x++)
|
|
|
{
|
|
|
if (quantum == 1)
|
|
|
(void) WriteBlobByte(image,ScaleQuantumToChar(
|
|
|
GetPixelGreen(chroma_image,p)));
|
|
|
else
|
|
|
(void) WriteBlobShort(image,ScaleQuantumToShort(
|
|
|
GetPixelGreen(chroma_image,p)));
|
|
|
p+=GetPixelChannels(chroma_image);
|
|
|
}
|
|
|
}
|
|
|
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,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,
|
|
|
exception);
|
|
|
if (p == (const Quantum *) NULL)
|
|
|
break;
|
|
|
for (x=0; x < (ssize_t) chroma_image->columns; x++)
|
|
|
{
|
|
|
if (quantum == 1)
|
|
|
(void) WriteBlobByte(image,ScaleQuantumToChar(
|
|
|
GetPixelBlue(chroma_image,p)));
|
|
|
else
|
|
|
(void) WriteBlobShort(image,ScaleQuantumToShort(
|
|
|
GetPixelBlue(chroma_image,p)));
|
|
|
p+=GetPixelChannels(chroma_image);
|
|
|
}
|
|
|
}
|
|
|
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,
|
|
|
MagickPathExtent);
|
|
|
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);
|
|
|
}
|
