/*
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
% %
|
% %
|
% %
|
% H H EEEEE IIIII CCCC %
|
% H H E I C %
|
% HHHHH EEE I C %
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% H H E I C %
|
% H H EEEEE IIIII CCCC %
|
% %
|
% %
|
% Read/Write Heic Image Format %
|
% %
|
% Dirk Farin %
|
% April 2018 %
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% %
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% Copyright 2018 Struktur AG %
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% %
|
% Anton Kortunov %
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% December 2017 %
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% %
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% Copyright 2017-2018 YANDEX LLC. %
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% %
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% Copyright 1999-2019 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 %
|
% distributed under the License is distributed on an "AS IS" BASIS, %
|
% 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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%
|
*/
|
|
/*
|
Include declarations.
|
*/
|
#include "MagickCore/studio.h"
|
#include "MagickCore/artifact.h"
|
#include "MagickCore/blob.h"
|
#include "MagickCore/blob-private.h"
|
#include "MagickCore/client.h"
|
#include "MagickCore/colorspace-private.h"
|
#include "MagickCore/property.h"
|
#include "MagickCore/display.h"
|
#include "MagickCore/exception.h"
|
#include "MagickCore/exception-private.h"
|
#include "MagickCore/image.h"
|
#include "MagickCore/image-private.h"
|
#include "MagickCore/list.h"
|
#include "MagickCore/magick.h"
|
#include "MagickCore/monitor.h"
|
#include "MagickCore/monitor-private.h"
|
#include "MagickCore/montage.h"
|
#include "MagickCore/transform.h"
|
#include "MagickCore/distort.h"
|
#include "MagickCore/memory_.h"
|
#include "MagickCore/memory-private.h"
|
#include "MagickCore/option.h"
|
#include "MagickCore/pixel-accessor.h"
|
#include "MagickCore/quantum-private.h"
|
#include "MagickCore/static.h"
|
#include "MagickCore/string_.h"
|
#include "MagickCore/string-private.h"
|
#include "MagickCore/module.h"
|
#include "MagickCore/utility.h"
|
#if defined(MAGICKCORE_HEIC_DELEGATE)
|
#if defined(MAGICKCORE_WINDOWS_SUPPORT)
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#include <heif.h>
|
#else
|
#include <libheif/heif.h>
|
#endif
|
#endif
|
|
|
#if defined(MAGICKCORE_HEIC_DELEGATE)
|
|
/*
|
Const declarations.
|
*/
|
static const char *xmp_namespace = "http://ns.adobe.com/xap/1.0/ ";
|
#define XmpNamespaceExtent 28
|
|
/*
|
Forward declarations.
|
*/
|
|
#if !defined(MAGICKCORE_WINDOWS_SUPPORT)
|
static MagickBooleanType
|
WriteHEICImage(const ImageInfo *,Image *,ExceptionInfo *);
|
#endif
|
|
/*x
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
% %
|
% %
|
% %
|
% R e a d H E I C I m a g e %
|
% %
|
% %
|
% %
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
%
|
% ReadHEICImage retrieves an image via a file descriptor, decodes the image,
|
% 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 ReadHEICImage method is:
|
%
|
% Image *ReadHEICImage(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 MagickBooleanType IsHeifSuccess(struct heif_error *error,Image *image,
|
ExceptionInfo *exception)
|
{
|
if (error->code == 0)
|
return(MagickTrue);
|
|
ThrowBinaryException(CorruptImageError,error->message,image->filename);
|
}
|
|
static Image *ReadHEICImage(const ImageInfo *image_info,
|
ExceptionInfo *exception)
|
{
|
heif_item_id
|
exif_id;
|
|
Image
|
*image;
|
|
int
|
count,
|
stride_y,
|
stride_cb,
|
stride_cr;
|
|
MagickBooleanType
|
status;
|
|
MagickSizeType
|
length;
|
|
ssize_t
|
y;
|
|
struct heif_context
|
*heif_context;
|
|
struct heif_error
|
error;
|
|
struct heif_image
|
*heif_image;
|
|
struct heif_image_handle
|
*image_handle;
|
|
struct heif_decoding_options
|
*decode_options;
|
|
uint8_t
|
*p_y,
|
*p_cb,
|
*p_cr;
|
|
void
|
*file_data;
|
|
const char
|
*option;
|
|
/*
|
Open image file.
|
*/
|
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);
|
status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
|
if (status == MagickFalse)
|
return(DestroyImageList(image));
|
length=GetBlobSize(image);
|
file_data=AcquireMagickMemory(length);
|
if (file_data == (void *) NULL)
|
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
|
if (ReadBlob(image,length,file_data) != (ssize_t) length)
|
{
|
file_data=RelinquishMagickMemory(file_data);
|
ThrowReaderException(CorruptImageError,"InsufficientImageDataInFile");
|
}
|
/*
|
Decode HEIF file
|
*/
|
heif_context=heif_context_alloc();
|
error=heif_context_read_from_memory(heif_context,file_data,length,NULL);
|
file_data=RelinquishMagickMemory(file_data);
|
if (IsHeifSuccess(&error,image,exception) == MagickFalse)
|
{
|
heif_context_free(heif_context);
|
return(DestroyImageList(image));
|
}
|
image_handle=(struct heif_image_handle *) NULL;
|
error=heif_context_get_primary_image_handle(heif_context,&image_handle);
|
if (IsHeifSuccess(&error,image,exception) == MagickFalse)
|
{
|
heif_context_free(heif_context);
|
return(DestroyImageList(image));
|
}
|
/*
|
Read Exif data from HEIC file
|
*/
|
count=heif_image_handle_get_list_of_metadata_block_IDs(image_handle,"Exif",
|
&exif_id,1);
|
if (count > 0)
|
{
|
size_t
|
exif_size;
|
|
unsigned char
|
*exif_buffer;
|
|
exif_size=heif_image_handle_get_metadata_size(image_handle,exif_id);
|
if (exif_size > GetBlobSize(image))
|
{
|
heif_image_handle_release(image_handle);
|
heif_context_free(heif_context);
|
ThrowReaderException(CorruptImageError,
|
"InsufficientImageDataInFile");
|
}
|
exif_buffer=(unsigned char *) AcquireMagickMemory(exif_size);
|
if (exif_buffer !=(unsigned char *) NULL)
|
{
|
error=heif_image_handle_get_metadata(image_handle,
|
exif_id,exif_buffer);
|
if (error.code == 0)
|
{
|
StringInfo
|
*profile;
|
|
// The first 4 byte should be skipped since they indicate the
|
// offset to the start of the TIFF header of the Exif data.
|
profile=(StringInfo*) NULL;
|
if (exif_size > 8)
|
profile=BlobToStringInfo(exif_buffer+4,exif_size-4);
|
if (profile != (StringInfo*) NULL)
|
{
|
SetImageProfile(image,"exif",profile,exception);
|
profile=DestroyStringInfo(profile);
|
}
|
}
|
}
|
exif_buffer=RelinquishMagickMemory(exif_buffer);
|
}
|
/*
|
Set image size
|
*/
|
image->depth=8;
|
image->columns=(size_t) heif_image_handle_get_width(image_handle);
|
image->rows=(size_t) heif_image_handle_get_height(image_handle);
|
if (image_info->ping != MagickFalse)
|
{
|
image->colorspace=YCbCrColorspace;
|
heif_image_handle_release(image_handle);
|
heif_context_free(heif_context);
|
return(GetFirstImageInList(image));
|
}
|
status=SetImageExtent(image,image->columns,image->rows,exception);
|
if (status == MagickFalse)
|
{
|
heif_image_handle_release(image_handle);
|
heif_context_free(heif_context);
|
return(DestroyImageList(image));
|
}
|
/*
|
Copy HEIF image into ImageMagick data structures
|
*/
|
(void) SetImageColorspace(image,YCbCrColorspace,exception);
|
decode_options=(struct heif_decoding_options *) NULL;
|
option=GetImageOption(image_info,"heic:preserve-orientation");
|
if (IsStringTrue(option) == MagickTrue)
|
{
|
decode_options=heif_decoding_options_alloc();
|
decode_options->ignore_transformations=1;
|
}
|
else
|
SetImageProperty(image,"exif:Orientation","1",exception);
|
error=heif_decode_image(image_handle,&heif_image,heif_colorspace_YCbCr,
|
heif_chroma_420,decode_options);
|
if (decode_options != (struct heif_decoding_options *) NULL)
|
{
|
/* Correct the width and height of the image */
|
image->columns=(size_t) heif_image_get_width(heif_image,heif_channel_Y);
|
image->rows=(size_t) heif_image_get_height(heif_image,heif_channel_Y);
|
status=SetImageExtent(image,image->columns,image->rows,exception);
|
heif_decoding_options_free(decode_options);
|
}
|
if ((IsHeifSuccess(&error,image,exception) == MagickFalse) ||
|
(status == MagickFalse))
|
{
|
heif_image_handle_release(image_handle);
|
heif_context_free(heif_context);
|
return(DestroyImageList(image));
|
}
|
p_y=heif_image_get_plane(heif_image,heif_channel_Y,&stride_y);
|
p_cb=heif_image_get_plane(heif_image,heif_channel_Cb,&stride_cb);
|
p_cr=heif_image_get_plane(heif_image,heif_channel_Cr,&stride_cr);
|
for (y=0; y < (ssize_t) image->rows; y++)
|
{
|
Quantum
|
*q;
|
|
register ssize_t
|
x;
|
|
q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
|
if (q == (Quantum *) NULL)
|
break;
|
for (x=0; x < (long) image->columns; x++)
|
{
|
SetPixelRed(image,ScaleCharToQuantum(p_y[y*stride_y + x]),q);
|
SetPixelGreen(image,ScaleCharToQuantum(p_cb[(y/2)*stride_cb + x/2]),q);
|
SetPixelBlue(image,ScaleCharToQuantum(p_cr[(y/2)*stride_cr + x/2]),q);
|
q+=GetPixelChannels(image);
|
}
|
if (SyncAuthenticPixels(image,exception) == MagickFalse)
|
break;
|
}
|
heif_image_release(heif_image);
|
heif_image_handle_release(image_handle);
|
heif_context_free(heif_context);
|
return(GetFirstImageInList(image));
|
}
|
#endif
|
|
/*
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
% %
|
% %
|
% %
|
% I s H E I C %
|
% %
|
% %
|
% %
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
%
|
% IsHEIC() returns MagickTrue if the image format type, identified by the
|
% magick string, is Heic.
|
%
|
% The format of the IsHEIC method is:
|
%
|
% MagickBooleanType IsHEIC(const unsigned char *magick,const size_t length)
|
%
|
% A description of each parameter follows:
|
%
|
% o magick: compare image format pattern against these bytes.
|
%
|
% o length: Specifies the length of the magick string.
|
%
|
*/
|
static MagickBooleanType IsHEIC(const unsigned char *magick,const size_t length)
|
{
|
if (length < 12)
|
return(MagickFalse);
|
if (LocaleNCompare((const char *) magick+4,"ftyp",4) != 0)
|
return(MagickFalse);
|
if (LocaleNCompare((const char *) magick+8,"heic",4) == 0)
|
return(MagickTrue);
|
if (LocaleNCompare((const char *) magick+8,"heix",4) == 0)
|
return(MagickTrue);
|
if (LocaleNCompare((const char *) magick+8,"mif1",4) == 0)
|
return(MagickTrue);
|
return(MagickFalse);
|
}
|
|
/*
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
% %
|
% %
|
% %
|
% R e g i s t e r H E I C I m a g e %
|
% %
|
% %
|
% %
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
%
|
% RegisterHEICImage() adds attributes for the HEIC 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 RegisterHEICImage method is:
|
%
|
% size_t RegisterHEICImage(void)
|
%
|
*/
|
ModuleExport size_t RegisterHEICImage(void)
|
{
|
MagickInfo
|
*entry;
|
|
entry=AcquireMagickInfo("HEIC","HEIC","High Efficiency Image Format");
|
#if defined(MAGICKCORE_HEIC_DELEGATE)
|
entry->decoder=(DecodeImageHandler *) ReadHEICImage;
|
#if !defined(MAGICKCORE_WINDOWS_SUPPORT)
|
entry->encoder=(EncodeImageHandler *) WriteHEICImage;
|
#endif
|
#endif
|
entry->magick=(IsImageFormatHandler *) IsHEIC;
|
entry->mime_type=ConstantString("image/x-heic");
|
#if defined(LIBHEIF_VERSION)
|
entry->version=ConstantString(LIBHEIF_VERSION);
|
#endif
|
entry->flags|=CoderDecoderSeekableStreamFlag;
|
entry->flags^=CoderAdjoinFlag;
|
(void) RegisterMagickInfo(entry);
|
return(MagickImageCoderSignature);
|
}
|
|
/*
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
% %
|
% %
|
% %
|
% U n r e g i s t e r H E I C I m a g e %
|
% %
|
% %
|
% %
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
%
|
% UnregisterHEICImage() removes format registrations made by the HEIC module
|
% from the list of supported formats.
|
%
|
% The format of the UnregisterHEICImage method is:
|
%
|
% UnregisterHEICImage(void)
|
%
|
*/
|
ModuleExport void UnregisterHEICImage(void)
|
{
|
(void) UnregisterMagickInfo("HEIC");
|
}
|
|
/*
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
% %
|
% %
|
% %
|
% W r i t e H E I C I m a g e %
|
% %
|
% %
|
% %
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
%
|
% WriteHEICImage() writes an HEIF image using the libheif library.
|
%
|
% The format of the WriteHEICImage method is:
|
%
|
% MagickBooleanType WriteHEICImage(const ImageInfo *image_info,
|
% Image *image)
|
%
|
% 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.
|
%
|
*/
|
#if defined(MAGICKCORE_HEIC_DELEGATE) && !defined(MAGICKCORE_WINDOWS_SUPPORT)
|
static void WriteProfile(struct heif_context* ctx,Image *image,
|
ExceptionInfo *exception)
|
{
|
const char
|
*name;
|
|
const StringInfo
|
*profile;
|
|
MagickBooleanType
|
iptc;
|
|
register ssize_t
|
i;
|
|
size_t
|
length;
|
|
StringInfo
|
*custom_profile;
|
|
struct heif_error
|
error;
|
|
struct heif_image_handle
|
*image_handle;
|
|
/*Get image handle*/
|
image_handle=(struct heif_image_handle *) NULL;
|
error=heif_context_get_primary_image_handle(ctx,&image_handle);
|
if (error.code != 0)
|
return;
|
|
/*
|
Save image profile as a APP marker.
|
*/
|
iptc=MagickFalse;
|
custom_profile=AcquireStringInfo(65535L);
|
ResetImageProfileIterator(image);
|
for (name=GetNextImageProfile(image); name != (const char *) NULL; )
|
{
|
profile=GetImageProfile(image,name);
|
length=GetStringInfoLength(profile);
|
|
if (LocaleCompare(name,"EXIF") == 0)
|
{
|
length=GetStringInfoLength(profile);
|
if (length > 65533L)
|
{
|
(void) ThrowMagickException(exception,GetMagickModule(),
|
CoderWarning,"ExifProfileSizeExceedsLimit","`%s'",
|
image->filename);
|
length=65533L;
|
}
|
(void) heif_context_add_exif_metadata(ctx,image_handle,
|
(void*) GetStringInfoDatum(profile),length);
|
}
|
|
if (LocaleCompare(name,"XMP") == 0)
|
{
|
StringInfo
|
*xmp_profile;
|
|
xmp_profile=StringToStringInfo(xmp_namespace);
|
if (xmp_profile != (StringInfo *) NULL)
|
{
|
if (profile != (StringInfo *) NULL)
|
ConcatenateStringInfo(xmp_profile,profile);
|
GetStringInfoDatum(xmp_profile)[XmpNamespaceExtent]='\0';
|
for (i=0; i < (ssize_t) GetStringInfoLength(xmp_profile); i+=65533L)
|
{
|
length=MagickMin(GetStringInfoLength(xmp_profile)-i,65533L);
|
error=heif_context_add_XMP_metadata(ctx,image_handle,
|
(void*) (GetStringInfoDatum(xmp_profile)+i),length);
|
if (error.code != 0)
|
break;
|
}
|
xmp_profile=DestroyStringInfo(xmp_profile);
|
}
|
}
|
if (image->debug != MagickFalse)
|
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
|
"%s profile: %.20g bytes",name,(double) GetStringInfoLength(profile));
|
name=GetNextImageProfile(image);
|
}
|
custom_profile=DestroyStringInfo(custom_profile);
|
heif_image_handle_release(image_handle);
|
}
|
|
static struct heif_error heif_write_func(struct heif_context *ctx,const void* data,
|
size_t size,void* userdata)
|
{
|
Image
|
*image;
|
|
struct heif_error
|
error_ok;
|
|
(void) ctx;
|
image=(Image*) userdata;
|
(void) WriteBlob(image,size,data);
|
error_ok.code=heif_error_Ok;
|
error_ok.subcode=heif_suberror_Unspecified;
|
error_ok.message="ok";
|
return(error_ok);
|
}
|
|
static MagickBooleanType WriteHEICImage(const ImageInfo *image_info,Image *image,
|
ExceptionInfo *exception)
|
{
|
long
|
x,
|
y;
|
|
MagickBooleanType
|
status;
|
|
MagickOffsetType
|
scene;
|
|
struct heif_context
|
*heif_context;
|
|
struct heif_encoder
|
*heif_encoder;
|
|
struct heif_image
|
*heif_image;
|
|
/*
|
Open output image file.
|
*/
|
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);
|
status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
|
if (status == MagickFalse)
|
return(status);
|
scene=0;
|
heif_context=heif_context_alloc();
|
heif_image=(struct heif_image*) NULL;
|
heif_encoder=(struct heif_encoder*) NULL;
|
do
|
{
|
const Quantum
|
*p;
|
|
int
|
stride_y,
|
stride_cb,
|
stride_cr;
|
|
struct heif_error
|
error;
|
|
struct heif_writer
|
writer;
|
|
uint8_t
|
*p_y,
|
*p_cb,
|
*p_cr;
|
|
/*
|
Transform colorspace to YCbCr.
|
*/
|
if (image->colorspace != YCbCrColorspace)
|
status=TransformImageColorspace(image,YCbCrColorspace,exception);
|
if (status == MagickFalse)
|
break;
|
/*
|
Initialize HEIF encoder context
|
*/
|
error=heif_image_create((int) image->columns,(int) image->rows,
|
heif_colorspace_YCbCr,heif_chroma_420,&heif_image);
|
status=IsHeifSuccess(&error,image,exception);
|
if (status == MagickFalse)
|
break;
|
error=heif_image_add_plane(heif_image,heif_channel_Y,(int) image->columns,
|
(int) image->rows,8);
|
status=IsHeifSuccess(&error,image,exception);
|
if (status == MagickFalse)
|
break;
|
error=heif_image_add_plane(heif_image,heif_channel_Cb,
|
((int) image->columns+1)/2,((int) image->rows+1)/2,8);
|
status=IsHeifSuccess(&error,image,exception);
|
if (status == MagickFalse)
|
break;
|
error=heif_image_add_plane(heif_image,heif_channel_Cr,
|
((int) image->columns+1)/2,((int) image->rows+1)/2,8);
|
status=IsHeifSuccess(&error,image,exception);
|
if (status == MagickFalse)
|
break;
|
p_y=heif_image_get_plane(heif_image,heif_channel_Y,&stride_y);
|
p_cb=heif_image_get_plane(heif_image,heif_channel_Cb,&stride_cb);
|
p_cr=heif_image_get_plane(heif_image,heif_channel_Cr,&stride_cr);
|
/*
|
Copy image to heif_image
|
*/
|
for (y=0; y < (long) image->rows; y++)
|
{
|
p=GetVirtualPixels(image,0,y,image->columns,1,exception);
|
if (p == (const Quantum *) NULL)
|
{
|
status=MagickFalse;
|
break;
|
}
|
if ((y & 1)==0)
|
{
|
for (x=0; x < (long) image->columns; x+=2)
|
{
|
p_y[y*stride_y+x]=ScaleQuantumToChar(GetPixelRed(image,p));
|
p_cb[y/2*stride_cb+x/2]=ScaleQuantumToChar(GetPixelGreen(image,
|
p));
|
p_cr[y/2*stride_cr+x/2]=ScaleQuantumToChar(GetPixelBlue(image,
|
p));
|
p+=GetPixelChannels(image);
|
|
if (x+1 < (long) image->columns)
|
{
|
p_y[y*stride_y + x+1]=ScaleQuantumToChar(GetPixelRed(image,
|
p));
|
p+=GetPixelChannels(image);
|
}
|
}
|
}
|
else
|
{
|
for (x=0; x < (long) image->columns; x++)
|
{
|
p_y[y*stride_y + x]=ScaleQuantumToChar(GetPixelRed(image,p));
|
p+=GetPixelChannels(image);
|
}
|
}
|
if (image->previous == (Image *) NULL)
|
{
|
status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
|
image->rows);
|
if (status == MagickFalse)
|
break;
|
}
|
}
|
if (status == MagickFalse)
|
break;
|
/*
|
Code and actually write the HEIC image
|
*/
|
error=heif_context_get_encoder_for_format(heif_context,
|
heif_compression_HEVC,&heif_encoder);
|
status=IsHeifSuccess(&error,image,exception);
|
if (status == MagickFalse)
|
break;
|
if (image_info->quality != UndefinedCompressionQuality)
|
{
|
error=heif_encoder_set_lossy_quality(heif_encoder,
|
(int) image_info->quality);
|
status=IsHeifSuccess(&error,image,exception);
|
if (status == MagickFalse)
|
break;
|
}
|
error=heif_context_encode_image(heif_context,heif_image,heif_encoder,
|
(const struct heif_encoding_options*) NULL,
|
(struct heif_image_handle**) NULL);
|
status=IsHeifSuccess(&error,image,exception);
|
if (status == MagickFalse)
|
break;
|
writer.writer_api_version=1;
|
writer.write=heif_write_func;
|
|
if (image->profiles != (void *) NULL)
|
WriteProfile(heif_context, image, exception);
|
|
error=heif_context_write(heif_context,&writer,image);
|
status=IsHeifSuccess(&error,image,exception);
|
if (status == MagickFalse)
|
break;
|
if (GetNextImageInList(image) == (Image *) NULL)
|
break;
|
image=SyncNextImageInList(image);
|
status=SetImageProgress(image,SaveImagesTag,scene,
|
GetImageListLength(image));
|
if (status == MagickFalse)
|
break;
|
heif_encoder_release(heif_encoder);
|
heif_encoder=(struct heif_encoder*) NULL;
|
heif_image_release(heif_image);
|
heif_image=(struct heif_image*) NULL;
|
scene++;
|
} while (image_info->adjoin != MagickFalse);
|
|
if (heif_encoder != (struct heif_encoder*) NULL)
|
heif_encoder_release(heif_encoder);
|
if (heif_image != (struct heif_image*) NULL)
|
heif_image_release(heif_image);
|
heif_context_free(heif_context);
|
|
(void) CloseBlob(image);
|
return(status);
|
}
|
#endif
|
