add jp2ksave

works, but not quite done
This commit is contained in:
John Cupitt 2021-03-19 11:49:07 +00:00
parent 1bcaab00a6
commit 454f448c5b
7 changed files with 704 additions and 36 deletions

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@ -20,7 +20,8 @@
- add vips_fitsload_source(), vips_niftiload_source()
- png and gif load note background colour as metadata [781545872]
- add vips_image_[set|get]_array_double()
- add vips_jp2kload(), vips_jp2kload_source()
- add vips_jp2kload(), vips_jp2kload_source(), vips_jp2ksave(),
vips_jp2ksave_target()
22/12/20 start 8.10.6
- don't seek on bad file descriptors [kleisauke]

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@ -17,6 +17,7 @@ libforeign_la_SOURCES = \
heifload.c \
heifsave.c \
jp2kload.c \
jp2ksave.c \
jpeg2vips.c \
jpeg.h \
jpegload.c \

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@ -2178,6 +2178,8 @@ vips_foreign_operation_init( void )
extern GType vips_foreign_load_jp2k_file_get_type( void );
extern GType vips_foreign_load_jp2k_source_get_type( void );
extern GType vips_foreign_save_jp2k_file_get_type( void );
extern GType vips_foreign_save_jp2k_target_get_type( void );
extern GType vips_foreign_load_heif_file_get_type( void );
extern GType vips_foreign_load_heif_buffer_get_type( void );
@ -2252,6 +2254,8 @@ vips_foreign_operation_init( void )
#ifdef HAVE_LIBOPENJP2
vips_foreign_load_jp2k_file_get_type();
vips_foreign_load_jp2k_source_get_type();
vips_foreign_save_jp2k_file_get_type();
vips_foreign_save_jp2k_target_get_type();
#endif /*HAVE_LIBOPENJP2*/
#ifdef HAVE_GIFLIB

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@ -1,10 +1,7 @@
/* load jp2k from a file
/* load jpeg2000
*
* 29/6/18
* - from fitsload.c
* 9/9/19
* - use double for all floating point scalar metadata, like other loaders
* - remove stray use of "n" property
* 18/3/20
* - from heifload.c
*/
/*
@ -59,10 +56,17 @@
#include "pforeign.h"
/* TODO:
* - we only support 8 and 16-bit images, is this OK?
*
* - we only support images where all components have the same numeric
* type, is this OK?
* - set alpha on save
*
* - params for compression ratio, chrominance subsampling, etc. ...
* imagemagick jp2 files are half the size of ours
*
* - we only support 8 and 16-bit unsigned images ... add 32-bit, plus
* signed and unsigned
*
* - tests
*
*/
/* Surely enough ... does anyone do multispectral imaging with jp2k?
@ -94,10 +98,6 @@ typedef struct _VipsForeignLoadJp2k {
* corrupted images.
*/
int n_errors;
/* An array of int* plane pointers for unpack.
*/
int *planes[MAX_BANDS];
} VipsForeignLoadJp2k;
typedef VipsForeignLoadClass VipsForeignLoadJp2kClass;
@ -423,18 +423,18 @@ vips_foreign_load_jp2k_set_header( VipsForeignLoadJp2k *jp2k, VipsImage *out )
}
switch( jp2k->image->color_space ) {
case OPJ_CLRSPC_SRGB:
interpretation = format == VIPS_FORMAT_UCHAR ?
VIPS_INTERPRETATION_sRGB :
VIPS_INTERPRETATION_RGB16;
break;
case OPJ_CLRSPC_GRAY:
interpretation = format == VIPS_FORMAT_UCHAR ?
VIPS_INTERPRETATION_B_W :
VIPS_INTERPRETATION_GREY16;
break;
case OPJ_CLRSPC_SRGB:
interpretation = format == VIPS_FORMAT_UCHAR ?
VIPS_INTERPRETATION_sRGB :
VIPS_INTERPRETATION_RGB16;
break;
case OPJ_CLRSPC_CMYK:
interpretation = VIPS_INTERPRETATION_CMYK;
break;
@ -506,11 +506,8 @@ vips_foreign_load_jp2k_header( VipsForeignLoad *load )
jp2k->format = vips_foreign_load_jp2k_get_format( jp2k->source );
vips_source_rewind( jp2k->source );
if( !(jp2k->codec = opj_create_decompress( jp2k->format )) ) {
vips_error( class->nickname,
"%s", _( "format not supported by openjpeg" ) );
if( !(jp2k->codec = opj_create_decompress( jp2k->format )) )
return( -1 );
}
vips_foreign_load_jp2k_attach_handlers( jp2k, jp2k->codec );
@ -525,11 +522,8 @@ vips_foreign_load_jp2k_header( VipsForeignLoad *load )
if( !opj_read_header( jp2k->stream, jp2k->codec, &jp2k->image ) )
return( -1 );
if( !(jp2k->info = opj_get_cstr_info( jp2k->codec )) ) {
vips_error( class->nickname,
"%s", _( "unable to read codec info" ) );
if( !(jp2k->info = opj_get_cstr_info( jp2k->codec )) )
return( -1 );
}
if( jp2k->image->numcomps > MAX_BANDS ) {
vips_error( class->nickname,
"%s", _( "too many image bands" ) );
@ -565,7 +559,7 @@ vips_foreign_load_jp2k_repack( VipsForeignLoadJp2k *jp2k,
VipsImage *image, VipsPel *q,
int left, int top, int length )
{
int **planes = jp2k->planes;
int *planes[MAX_BANDS];
int b = jp2k->image->numcomps;
int x, i;
@ -686,12 +680,8 @@ vips_foreign_load_jp2k_generate( VipsRegion *out,
}
if( load->fail &&
jp2k->n_errors > 0 ) {
VipsObjectClass *class = VIPS_OBJECT_GET_CLASS( jp2k );
vips_error( class->nickname, "%s", _( "load error" ) );
jp2k->n_errors > 0 )
return( -1 );
}
return( 0 );
}
@ -803,7 +793,7 @@ vips_foreign_load_jp2k_file_build( VipsObject *object )
return( 0 );
}
const char *vips_foreign_jp2k_suffs[] =
const char *vips__jp2k_suffs[] =
{ ".j2k", ".jp2", ".jpt", ".j2c", ".jpc", NULL };
static int
@ -835,7 +825,7 @@ vips_foreign_load_jp2k_file_class_init(
object_class->nickname = "jp2kload";
object_class->build = vips_foreign_load_jp2k_file_build;
foreign_class->suffs = vips_foreign_jp2k_suffs;
foreign_class->suffs = vips__jp2k_suffs;
load_class->is_a = vips_foreign_load_jp2k_is_a;

666
libvips/foreign/jp2ksave.c Normal file
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@ -0,0 +1,666 @@
/* save as jpeg2000
*
* 18/3/20
* - from jp2kload.c
*/
/*
This file is part of VIPS.
VIPS is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA
*/
/*
These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk
*/
/*
#define DEBUG_VERBOSE
#define DEBUG
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif /*HAVE_CONFIG_H*/
#include <vips/intl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <vips/vips.h>
#include <vips/internal.h>
#ifdef HAVE_LIBOPENJP2
#include <openjpeg.h>
#include "pforeign.h"
/* Surely enough ... does anyone do multispectral imaging with jp2k?
*/
#define MAX_BANDS (100)
typedef struct _VipsForeignSaveJp2k {
VipsForeignSave parent_object;
/* Where to write (set by subclasses).
*/
VipsTarget *target;
int tile_width;
int tile_height;
/* Encoder state.
*/
opj_stream_t *stream;
opj_codec_t *codec;
opj_cparameters_t parameters;
opj_image_cmptparm_t comps[MAX_BANDS];
opj_image_t *image;
/* The line of tiles we are building, and a contiguous buffer we
* repack to for output.
*/
VipsRegion *strip;
VipsPel *tile_buffer;
} VipsForeignSaveJp2k;
typedef VipsForeignSaveClass VipsForeignSaveJp2kClass;
G_DEFINE_ABSTRACT_TYPE( VipsForeignSaveJp2k, vips_foreign_save_jp2k,
VIPS_TYPE_FOREIGN_SAVE );
static void
vips_foreign_save_jp2k_dispose( GObject *gobject )
{
VipsForeignSaveJp2k *jp2k = (VipsForeignSaveJp2k *) gobject;
VIPS_FREEF( opj_destroy_codec, jp2k->codec );
VIPS_FREEF( opj_stream_destroy, jp2k->stream );
VIPS_FREEF( opj_image_destroy, jp2k->image );
VIPS_UNREF( jp2k->target );
VIPS_UNREF( jp2k->strip );
VIPS_FREE( jp2k->tile_buffer );
G_OBJECT_CLASS( vips_foreign_save_jp2k_parent_class )->
dispose( gobject );
}
static OPJ_SIZE_T
vips_foreign_save_jp2k_write_target( void *buffer, size_t length, void *client )
{
VipsTarget *target = VIPS_TARGET( client );
if( vips_target_write( target, buffer, length ) )
return( 0 );
return( length );
}
/* Make a libopenjp2 output stream that wraps a VipsTarget.
*/
static opj_stream_t *
vips_foreign_save_jp2k_target( VipsTarget *target )
{
opj_stream_t *stream;
/* FALSE means a write stream.
*/
if( !(stream = opj_stream_create( OPJ_J2K_STREAM_CHUNK_SIZE, FALSE )) )
return( NULL );
opj_stream_set_user_data( stream, target, NULL );
opj_stream_set_write_function( stream,
vips_foreign_save_jp2k_write_target );
return( stream );
}
static void
vips_foreign_save_jp2k_error_callback( const char *msg, void *client )
{
VipsObjectClass *class = VIPS_OBJECT_GET_CLASS( client );
vips_error( class->nickname, "%s", msg );
}
/* The openjpeg info and warning callbacks are incredibly chatty.
*/
static void
vips_foreign_save_jp2k_warning_callback( const char *msg, void *client )
{
#ifdef DEBUG
VipsObjectClass *class = VIPS_OBJECT_GET_CLASS( client );
g_warning( "%s: %s", class->nickname, msg );
#endif /*DEBUG*/
}
/* The openjpeg info and warning callbacks are incredibly chatty.
*/
static void
vips_foreign_save_jp2k_info_callback( const char *msg, void *client )
{
#ifdef DEBUG
VipsObjectClass *class = VIPS_OBJECT_GET_CLASS( client );
g_info( "%s: %s", class->nickname, msg );
#endif /*DEBUG*/
}
static void
vips_foreign_save_jp2k_attach_handlers( VipsForeignSaveJp2k *jp2k,
opj_codec_t *codec )
{
opj_set_info_handler( codec,
vips_foreign_save_jp2k_info_callback, jp2k );
opj_set_warning_handler( codec,
vips_foreign_save_jp2k_warning_callback, jp2k );
opj_set_error_handler( codec,
vips_foreign_save_jp2k_error_callback, jp2k );
}
#define UNPACK( TYPE ) { \
TYPE **tplanes = (TYPE **) planes; \
TYPE *tp = (TYPE *) p; \
\
for( x = 0; x < tile->width; x++ ) \
for( i = 0; i < b; i++ ) \
*(tplanes[i])++ = *tp++; \
}
static void
vips_foreign_save_jp2k_unpack( VipsForeignSaveJp2k *jp2k, VipsRect *tile )
{
VipsForeignSave *save = (VipsForeignSave *) jp2k;
size_t sizeof_element = VIPS_IMAGE_SIZEOF_ELEMENT( save->ready );
int b = save->ready->Bands;
VipsPel *planes[MAX_BANDS];
int x, y, i;
for( i = 0; i < b; i++ )
planes[i] = jp2k->tile_buffer +
i * sizeof_element * tile->width * tile->height;
for( y = 0; y < tile->height; y++ ) {
VipsPel *p = VIPS_REGION_ADDR( jp2k->strip,
tile->left, tile->top + y );
switch( save->ready->BandFmt ) {
case VIPS_FORMAT_UCHAR:
UNPACK( unsigned char );
break;
case VIPS_FORMAT_USHORT:
UNPACK( unsigned short );
break;
default:
g_assert_not_reached();
break;
}
}
}
static int
vips_foreign_save_jp2k_write_tiles( VipsForeignSaveJp2k *jp2k )
{
VipsForeignSave *save = (VipsForeignSave *) jp2k;
size_t sizeof_pel = VIPS_IMAGE_SIZEOF_PEL( save->ready );
int tiles_across =
VIPS_ROUND_UP( save->ready->Xsize, jp2k->tile_width ) /
jp2k->tile_width;
int x;
for( x = 0; x < save->ready->Xsize; x += jp2k->tile_width ) {
VipsRect tile;
size_t sizeof_tile;
int tile_index;
tile.left = x;
tile.top = jp2k->strip->valid.top;
tile.width = jp2k->tile_width;
tile.height = jp2k->tile_height;
vips_rect_intersectrect( &tile, &jp2k->strip->valid, &tile );
vips_foreign_save_jp2k_unpack( jp2k, &tile );
sizeof_tile = sizeof_pel * tile.width * tile.height;
tile_index = tiles_across * tile.top / jp2k->tile_height +
x / jp2k->tile_width;
if( !opj_write_tile( jp2k->codec, tile_index,
jp2k->tile_buffer, sizeof_tile, jp2k->stream ) )
return( -1 );
}
return( 0 );
}
static int
vips_foreign_save_jp2k_write_block( VipsRegion *region, VipsRect *area,
void *a )
{
VipsForeignSaveJp2k *jp2k = (VipsForeignSaveJp2k *) a;
VipsForeignSave *save = (VipsForeignSave *) jp2k;
#ifdef DEBUG_VERBOSE
printf( "vips_foreign_save_jp2k_write_block: y = %d, nlines = %d\n",
area->top, area->height );
#endif /*DEBUG_VERBOSE*/
for(;;) {
VipsRect hit;
int y;
VipsRect strip_position;
/* The intersection with the strip is the fresh pixels we
* have.
*/
vips_rect_intersectrect( area, &(jp2k->strip->valid), &hit );
/* Copy the new pixels into the strip.
*/
for( y = 0; y < hit.height; y++ ) {
VipsPel *p = VIPS_REGION_ADDR( region,
0, hit.top + y );
VipsPel *q = VIPS_REGION_ADDR( jp2k->strip,
0, hit.top + y );
memcpy( q, p, VIPS_IMAGE_SIZEOF_LINE( region->im ) );
}
/* Have we failed to reach the bottom of the strip? We must
* have run out of fresh pixels, so we are done.
*/
if( VIPS_RECT_BOTTOM( &hit ) !=
VIPS_RECT_BOTTOM( &jp2k->strip->valid ) )
break;
/* We have reached the bottom of the strip. Write this line of
* pixels and ove the strip down.
*/
if( vips_foreign_save_jp2k_write_tiles( jp2k ) )
return( -1 );
strip_position.left = 0;
strip_position.top = jp2k->strip->valid.top + jp2k->tile_height;
strip_position.width = save->ready->Xsize;
strip_position.height = jp2k->tile_height;
if( vips_region_buffer( jp2k->strip, &strip_position ) )
return( -1 );
}
return( 0 );
}
static int
vips_foreign_save_jp2k_build( VipsObject *object )
{
VipsForeignSave *save = (VipsForeignSave *) object;
VipsForeignSaveJp2k *jp2k = (VipsForeignSaveJp2k *) object;
OPJ_COLOR_SPACE color_space;
int expected_bands;
int i;
size_t sizeof_tile;
VipsRect strip_position;
if( VIPS_OBJECT_CLASS( vips_foreign_save_jp2k_parent_class )->
build( object ) )
return( -1 );
/* A JPEG2000 codestream.
*/
jp2k->codec = opj_create_compress( OPJ_CODEC_J2K );
vips_foreign_save_jp2k_attach_handlers( jp2k, jp2k->codec );
opj_set_default_encoder_parameters( &jp2k->parameters );
/* Always tile.
*/
jp2k->parameters.tile_size_on = OPJ_TRUE;
jp2k->parameters.cp_tdx = jp2k->tile_width;
jp2k->parameters.cp_tdy = jp2k->tile_height;
/*
jp2k->parameters.tcp_numlayers = 1;
jp2k->parameters.decod_format = 17;
jp2k->parameters.tcp_mct = 1;
*/
/* Enable YCC encoding for RGB images.
if ((parameters.tcp_mct == 1) && (image->numcomps < 3)) {
fprintf(stderr, "RGB->YCC conversion cannot be used:\n");
fprintf(stderr, "Input image has less than 3 components\n");
*/
/* CIELAB etc. do not seem to be well documented.
*/
switch( save->ready->Type ) {
case VIPS_INTERPRETATION_B_W:
case VIPS_INTERPRETATION_GREY16:
color_space = OPJ_CLRSPC_GRAY;
expected_bands = 1;
break;
case VIPS_INTERPRETATION_sRGB:
case VIPS_INTERPRETATION_RGB16:
color_space = OPJ_CLRSPC_SRGB;
expected_bands = 3;
break;
case VIPS_INTERPRETATION_CMYK:
color_space = OPJ_CLRSPC_CMYK;
expected_bands = 4;
break;
default:
color_space = OPJ_CLRSPC_UNSPECIFIED;
expected_bands = save->ready->Bands;
break;
}
for( i = 0; i < save->ready->Bands; i++ ) {
jp2k->comps[i].dx = 1;
jp2k->comps[i].dy = 1;
jp2k->comps[i].w = save->ready->Xsize;
jp2k->comps[i].h = save->ready->Ysize;
jp2k->comps[i].x0 = 0;
jp2k->comps[i].y0 = 0;
jp2k->comps[i].prec = jp2k->comps[i].bpp =
save->ready->BandFmt == VIPS_FORMAT_UCHAR ? 8 : 16;
jp2k->comps[i].sgnd = 0;
//jp2k->comps[i].alpha = i >= expected_bands;
}
jp2k->image = opj_image_create( save->ready->Bands,
jp2k->comps, color_space );
jp2k->image->x1 = save->ready->Xsize;
jp2k->image->y1 = save->ready->Ysize;
if( !opj_setup_encoder( jp2k->codec, &jp2k->parameters, jp2k->image ) )
return( -1 );
opj_codec_set_threads( jp2k->codec, vips_concurrency_get() );
if( !(jp2k->stream = vips_foreign_save_jp2k_target( jp2k->target )) )
return( -1 );
if( !opj_start_compress( jp2k->codec, jp2k->image, jp2k->stream ) )
return( -1 );
/* The buffer we repack tiles to for write. Large enough for one
* complete tile.
*/
sizeof_tile = VIPS_IMAGE_SIZEOF_PEL( save->ready ) *
jp2k->tile_width * jp2k->tile_height;
if( !(jp2k->tile_buffer = VIPS_ARRAY( NULL, sizeof_tile, VipsPel )) )
return( -1 );
/* The line of tiles we are building.
*/
jp2k->strip = vips_region_new( save->ready );
/* Position strip at the top of the image, the height of a row of
* tiles.
*/
strip_position.left = 0;
strip_position.top = 0;
strip_position.width = save->ready->Xsize;
strip_position.height = jp2k->tile_height;
if( vips_region_buffer( jp2k->strip, &strip_position ) )
return( -1 );
/* Write data.
*/
if( vips_sink_disc( save->ready,
vips_foreign_save_jp2k_write_block, jp2k ) )
return( -1 );
opj_end_compress( jp2k->codec, jp2k->stream );
vips_target_finish( jp2k->target );
return( 0 );
}
/* Save a bit of typing.
*/
#define UC VIPS_FORMAT_UCHAR
#define US VIPS_FORMAT_USHORT
static int vips_jp2k_bandfmt[10] = {
/* UC C US S UI I F X D DX */
UC, UC, US, US, US, US, US, US, US, US
};
static void
vips_foreign_save_jp2k_class_init( VipsForeignSaveJp2kClass *class )
{
GObjectClass *gobject_class = G_OBJECT_CLASS( class );
VipsObjectClass *object_class = (VipsObjectClass *) class;
VipsForeignClass *foreign_class = (VipsForeignClass *) class;
VipsForeignSaveClass *save_class = (VipsForeignSaveClass *) class;
gobject_class->dispose = vips_foreign_save_jp2k_dispose;
gobject_class->set_property = vips_object_set_property;
gobject_class->get_property = vips_object_get_property;
object_class->nickname = "jp2ksave_base";
object_class->description = _( "save image in HEIF format" );
object_class->build = vips_foreign_save_jp2k_build;
foreign_class->suffs = vips__jp2k_suffs;
save_class->saveable = VIPS_SAVEABLE_ANY;
save_class->format_table = vips_jp2k_bandfmt;
VIPS_ARG_INT( class, "tile_width", 11,
_( "Tile width" ),
_( "Tile width in pixels" ),
VIPS_ARGUMENT_OPTIONAL_INPUT,
G_STRUCT_OFFSET( VipsForeignSaveJp2k, tile_width ),
1, 32768, 512 );
VIPS_ARG_INT( class, "tile_height", 12,
_( "Tile height" ),
_( "Tile height in pixels" ),
VIPS_ARGUMENT_OPTIONAL_INPUT,
G_STRUCT_OFFSET( VipsForeignSaveJp2k, tile_height ),
1, 32768, 512 );
}
static void
vips_foreign_save_jp2k_init( VipsForeignSaveJp2k *jp2k )
{
jp2k->tile_width = 512;
jp2k->tile_height = 512;
}
typedef struct _VipsForeignSaveJp2kFile {
VipsForeignSaveJp2k parent_object;
/* Filename for save.
*/
char *filename;
} VipsForeignSaveJp2kFile;
typedef VipsForeignSaveJp2kClass VipsForeignSaveJp2kFileClass;
G_DEFINE_TYPE( VipsForeignSaveJp2kFile, vips_foreign_save_jp2k_file,
vips_foreign_save_jp2k_get_type() );
static int
vips_foreign_save_jp2k_file_build( VipsObject *object )
{
VipsForeignSaveJp2k *jp2k = (VipsForeignSaveJp2k *) object;
VipsForeignSaveJp2kFile *file = (VipsForeignSaveJp2kFile *) object;
if( !(jp2k->target = vips_target_new_to_file( file->filename )) )
return( -1 );
if( VIPS_OBJECT_CLASS( vips_foreign_save_jp2k_file_parent_class )->
build( object ) )
return( -1 );
return( 0 );
}
static void
vips_foreign_save_jp2k_file_class_init( VipsForeignSaveJp2kFileClass *class )
{
GObjectClass *gobject_class = G_OBJECT_CLASS( class );
VipsObjectClass *object_class = (VipsObjectClass *) class;
gobject_class->set_property = vips_object_set_property;
gobject_class->get_property = vips_object_get_property;
object_class->nickname = "jp2ksave";
object_class->build = vips_foreign_save_jp2k_file_build;
VIPS_ARG_STRING( class, "filename", 1,
_( "Filename" ),
_( "Filename to load from" ),
VIPS_ARGUMENT_REQUIRED_INPUT,
G_STRUCT_OFFSET( VipsForeignSaveJp2kFile, filename ),
NULL );
}
static void
vips_foreign_save_jp2k_file_init( VipsForeignSaveJp2kFile *file )
{
}
typedef struct _VipsForeignSaveJp2kTarget {
VipsForeignSaveJp2k parent_object;
VipsTarget *target;
} VipsForeignSaveJp2kTarget;
typedef VipsForeignSaveJp2kClass VipsForeignSaveJp2kTargetClass;
G_DEFINE_TYPE( VipsForeignSaveJp2kTarget, vips_foreign_save_jp2k_target,
vips_foreign_save_jp2k_get_type() );
static int
vips_foreign_save_jp2k_target_build( VipsObject *object )
{
VipsForeignSaveJp2k *jp2k = (VipsForeignSaveJp2k *) object;
VipsForeignSaveJp2kTarget *target =
(VipsForeignSaveJp2kTarget *) object;
if( target->target ) {
jp2k->target = target->target;
g_object_ref( jp2k->target );
}
if( VIPS_OBJECT_CLASS( vips_foreign_save_jp2k_target_parent_class )->
build( object ) )
return( -1 );
return( 0 );
}
static void
vips_foreign_save_jp2k_target_class_init(
VipsForeignSaveJp2kTargetClass *class )
{
GObjectClass *gobject_class = G_OBJECT_CLASS( class );
VipsObjectClass *object_class = (VipsObjectClass *) class;
gobject_class->set_property = vips_object_set_property;
gobject_class->get_property = vips_object_get_property;
object_class->nickname = "jp2ksave_target";
object_class->build = vips_foreign_save_jp2k_target_build;
VIPS_ARG_OBJECT( class, "target", 1,
_( "Target" ),
_( "Target to save to" ),
VIPS_ARGUMENT_REQUIRED_INPUT,
G_STRUCT_OFFSET( VipsForeignSaveJp2kTarget, target ),
VIPS_TYPE_TARGET );
}
static void
vips_foreign_save_jp2k_target_init( VipsForeignSaveJp2kTarget *target )
{
}
#endif /*HAVE_LIBOPENJP2*/
/**
* vips_jp2ksave: (method)
* @in: image to save
* @filename: file to write to
* @...: %NULL-terminated list of optional named arguments
*
* Write a VIPS image to a file in JPEG2000 format.
*
* See also: vips_image_write_to_file(), vips_jp2kload().
*
* Returns: 0 on success, -1 on error.
*/
int
vips_jp2ksave( VipsImage *in, const char *filename, ... )
{
va_list ap;
int result;
va_start( ap, filename );
result = vips_call_split( "jp2ksave", ap, in, filename );
va_end( ap );
return( result );
}
/**
* vips_jp2ksave_target: (method)
* @in: image to save
* @target: save image to this target
* @...: %NULL-terminated list of optional named arguments
*
* As vips_jp2ksave(), but save to a target.
*
* See also: vips_jp2ksave(), vips_image_write_to_target().
*
* Returns: 0 on success, -1 on error.
*/
int
vips_jp2ksave_target( VipsImage *in, VipsTarget *target, ... )
{
va_list ap;
int result;
va_start( ap, target );
result = vips_call_split( "jp2ksave_target", ap, in, target );
va_end( ap );
return( result );
}

View File

@ -245,6 +245,8 @@ void vips__heif_error( struct heif_error *error );
struct heif_image;
void vips__heif_image_print( struct heif_image *img );
extern const char *vips__jp2k_suffs[];
#ifdef __cplusplus
}
#endif /*__cplusplus*/

View File

@ -680,6 +680,10 @@ int vips_jp2kload( const char *filename, VipsImage **out, ... )
__attribute__((sentinel));
int vips_jp2kload_source( VipsSource *source, VipsImage **out, ... )
__attribute__((sentinel));
int vips_jp2ksave( VipsImage *in, const char *filename, ... )
__attribute__((sentinel));
int vips_jp2ksave_target( VipsImage *in, VipsTarget *target, ... )
__attribute__((sentinel));
/**
* VipsForeignDzLayout: