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libvips/libvips/foreign/heifsave.c

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/* save to heif
*
* 5/7/18
* - from niftisave.c
* 3/7/19 [lovell]
* - add "compression" option
* 1/9/19 [meyermarcel]
* - save alpha when necessary
* 15/3/20
* - revise for new VipsTarget API
* 14/2/21 kleisauke
* - move GObject part to vips2heif.c
* 30/7/21
* - rename "speed" as "effort" for consistency with other savers
* 22/12/21
* - add >8 bit support
* 22/10/11
* - improve rules for 16-bit write [johntrunc]
*/
/*
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 <glib/gi18n-lib.h>
#ifdef HAVE_HEIF_ENCODER
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <vips/vips.h>
#include <vips/internal.h>
#include "pforeign.h"
#include <libheif/heif.h>
typedef struct _VipsForeignSaveHeif {
VipsForeignSave parent_object;
/* Where to write (set by subclasses).
*/
VipsTarget *target;
/* Coding quality factor (1 - 100).
*/
int Q;
/* bitdepth to save at for >8 bit images.
*/
int bitdepth;
/* Lossless compression.
*/
gboolean lossless;
/* Compression format
*/
VipsForeignHeifCompression compression;
/* CPU effort (0 - 9).
*/
int effort;
/* Chroma subsampling.
*/
VipsForeignSubsample subsample_mode;
/* The image we save. This is a copy of save->ready since we need to
* be able to update the metadata.
*/
VipsImage *image;
int page_width;
int page_height;
int n_pages;
struct heif_context *ctx;
struct heif_encoder *encoder;
/* The current page we are writing.
*/
struct heif_image_handle *handle;
/* The current page in memory which we build as we scan down the
* image.
*/
struct heif_image *img;
/* The libheif memory area we fill with pixels from the libvips
* pipe.
*/
uint8_t *data;
int stride;
/* Deprecated ... this is now called effort for consistency with the
* other encoders.
*/
int speed;
} VipsForeignSaveHeif;
typedef VipsForeignSaveClass VipsForeignSaveHeifClass;
/* Defined in heifload.c
*/
void vips__heif_image_print( struct heif_image *img );
void vips__heif_error( struct heif_error *error );
G_DEFINE_ABSTRACT_TYPE( VipsForeignSaveHeif, vips_foreign_save_heif,
VIPS_TYPE_FOREIGN_SAVE );
static void
vips_foreign_save_heif_dispose( GObject *gobject )
{
VipsForeignSaveHeif *heif = (VipsForeignSaveHeif *) gobject;
VIPS_UNREF( heif->target );
VIPS_UNREF( heif->image );
VIPS_FREEF( heif_image_release, heif->img );
VIPS_FREEF( heif_image_handle_release, heif->handle );
VIPS_FREEF( heif_encoder_release, heif->encoder );
VIPS_FREEF( heif_context_free, heif->ctx );
G_OBJECT_CLASS( vips_foreign_save_heif_parent_class )->
dispose( gobject );
}
typedef struct heif_error (*libheif_metadata_fn)( struct heif_context *,
const struct heif_image_handle *,
const void *, int );
/* String-based metadata fields we add.
*/
typedef struct _VipsForeignSaveHeifMetadata {
const char *name; /* as understood by libvips */
libheif_metadata_fn saver; /* as understood by libheif */
} VipsForeignSaveHeifMetadata;
static VipsForeignSaveHeifMetadata libheif_metadata[] = {
{ VIPS_META_EXIF_NAME, heif_context_add_exif_metadata },
{ VIPS_META_XMP_NAME, heif_context_add_XMP_metadata }
};
static int
vips_foreign_save_heif_write_metadata( VipsForeignSaveHeif *heif )
{
int i;
struct heif_error error;
/* Rebuild exif from tags, if we'll be saving it.
*/
if( vips__exif_update( heif->image ) )
return( -1 );
for( i = 0; i < VIPS_NUMBER( libheif_metadata ); i++ )
if( vips_image_get_typeof( heif->image,
libheif_metadata[i].name ) ) {
const void *data;
size_t length;
#ifdef DEBUG
printf( "attaching %s ..\n",
libheif_metadata[i].name );
#endif /*DEBUG*/
if( vips_image_get_blob( heif->image,
libheif_metadata[i].name, &data, &length ) )
return( -1 );
error = libheif_metadata[i].saver( heif->ctx,
heif->handle, data, length );
if( error.code ) {
vips__heif_error( &error );
return( -1 );
}
}
return( 0 );
}
static int
vips_foreign_save_heif_write_page( VipsForeignSaveHeif *heif, int page )
{
VipsForeignSave *save = (VipsForeignSave *) heif;
struct heif_error error;
struct heif_encoding_options *options;
#ifdef HAVE_HEIF_COLOR_PROFILE
if( !save->strip &&
vips_image_get_typeof( heif->image, VIPS_META_ICC_NAME ) ) {
const void *data;
size_t length;
#ifdef DEBUG
printf( "attaching profile ..\n" );
#endif /*DEBUG*/
if( vips_image_get_blob( heif->image,
VIPS_META_ICC_NAME, &data, &length ) )
return( -1 );
/* FIXME .. also see heif_image_set_nclx_color_profile()
*/
error = heif_image_set_raw_color_profile( heif->img,
"rICC", data, length );
if( error.code ) {
vips__heif_error( &error );
return( -1 );
}
}
#endif /*HAVE_HEIF_COLOR_PROFILE*/
options = heif_encoding_options_alloc();
if( vips_image_hasalpha( heif->image ) )
options->save_alpha_channel = 1;
#ifdef DEBUG
{
GTimer *timer = g_timer_new();
printf( "calling heif_context_encode_image() ...\n" );
#endif /*DEBUG*/
error = heif_context_encode_image( heif->ctx,
heif->img, heif->encoder, options, &heif->handle );
#ifdef DEBUG
printf( "... libheif took %.2g seconds\n",
g_timer_elapsed( timer, NULL ) );
g_timer_destroy( timer );
}
#endif /*DEBUG*/
heif_encoding_options_free( options );
if( error.code ) {
vips__heif_error( &error );
return( -1 );
}
if( vips_image_get_typeof( heif->image, "heif-primary" ) ) {
int primary;
if( vips_image_get_int( heif->image,
"heif-primary", &primary ) )
return( -1 );
if( page == primary ) {
error = heif_context_set_primary_image( heif->ctx,
heif->handle );
if( error.code ) {
vips__heif_error( &error );
return( -1 );
}
}
}
if( !save->strip &&
vips_foreign_save_heif_write_metadata( heif ) )
return( -1 );
VIPS_FREEF( heif_image_handle_release, heif->handle );
return( 0 );
}
static int
vips_foreign_save_heif_pack( VipsForeignSaveHeif *heif,
VipsPel *q, VipsPel *p, int ne )
{
int i;
if( heif->image->BandFmt == VIPS_FORMAT_UCHAR &&
heif->bitdepth == 8 )
/* Most common case -- 8 bit to 8 bit.
*/
memcpy( q, p, ne );
else if( heif->image->BandFmt == VIPS_FORMAT_UCHAR &&
heif->bitdepth > 8 ) {
/* 8-bit source, write a bigendian short, shifted up.
*/
int shift = heif->bitdepth - 8;
for( i = 0; i < ne; i++ ) {
guint16 v = p[i] << shift;
q[0] = v >> 8;
q[1] = v;
q += 2;
}
}
else if( heif->image->BandFmt == VIPS_FORMAT_USHORT &&
heif->bitdepth <= 8 ) {
/* 16-bit native byte order source, 8 bit write.
*
* Pick the high or low bits of the source.
*/
int vips_bitdepth =
heif->image->Type == VIPS_INTERPRETATION_RGB16 ||
heif->image->Type == VIPS_INTERPRETATION_GREY16 ?
16 : 8;
int shift = vips_bitdepth - heif->bitdepth;
for( i = 0; i < ne; i++ ) {
guint16 v = *((gushort *) p) >> shift;
q[i] = v;
p += 2;
}
}
else if( heif->image->BandFmt == VIPS_FORMAT_USHORT &&
heif->bitdepth > 8 ) {
/* 16-bit native byte order source, 16 bit bigendian write.
*/
int vips_bitdepth =
heif->image->Type == VIPS_INTERPRETATION_RGB16 ||
heif->image->Type == VIPS_INTERPRETATION_GREY16 ?
16 : 8;
int shift = vips_bitdepth - heif->bitdepth;
for( i = 0; i < ne; i++ ) {
guint16 v = *((gushort *) p) >> shift;
q[0] = v >> 8;
q[1] = v;
p += 2;
q += 2;
}
}
else {
VipsObjectClass *class = VIPS_OBJECT_CLASS( heif );
vips_error( class->nickname,
"%s", _( "unimplemeted format conversion" ) );
return( -1 );
}
return( 0 );
}
static int
vips_foreign_save_heif_write_block( VipsRegion *region, VipsRect *area,
void *a )
{
VipsForeignSaveHeif *heif = (VipsForeignSaveHeif *) a;
int y;
#ifdef DEBUG
printf( "vips_foreign_save_heif_write_block: y = %d\n", area->top );
#endif /*DEBUG*/
/* Copy a line at a time into our output image, write each time the
* image fills.
*/
for( y = 0; y < area->height; y++ ) {
/* Y in page.
*/
int page = (area->top + y) / heif->page_height;
int line = (area->top + y) % heif->page_height;
VipsPel *p = VIPS_REGION_ADDR( region, 0, area->top + y );
VipsPel *q = heif->data + line * heif->stride;
if( vips_foreign_save_heif_pack( heif,
q, p, VIPS_REGION_N_ELEMENTS( region ) ) )
return( -1 );
/* Did we just write the final line? Write as a new page
* into the output.
*/
if( line == heif->page_height - 1 )
if( vips_foreign_save_heif_write_page( heif, page ) )
return( -1 );
}
return( 0 );
}
struct heif_error
vips_foreign_save_heif_write( struct heif_context *ctx,
const void *data, size_t length, void *userdata )
{
VipsForeignSaveHeif *heif = (VipsForeignSaveHeif *) userdata;
struct heif_error error;
error.code = 0;
if( vips_target_write( heif->target, data, length ) )
error.code = -1;
return( error );
}
static int
vips_foreign_save_heif_build( VipsObject *object )
{
VipsForeignSave *save = (VipsForeignSave *) object;
VipsForeignSaveHeif *heif = (VipsForeignSaveHeif *) object;
struct heif_error error;
struct heif_writer writer;
char *chroma;
if( VIPS_OBJECT_CLASS( vips_foreign_save_heif_parent_class )->
build( object ) )
return( -1 );
/* Make a copy of the image in case we modify the metadata eg. for
* exif_update.
*/
if( vips_copy( save->ready, &heif->image, NULL ) )
return( -1 );
/* If the old, deprecated "speed" param is being used and the new
* "effort" param is not, use speed to init effort.
*/
if( vips_object_argument_isset( object, "speed" ) &&
!vips_object_argument_isset( object, "effort" ) )
heif->effort = 9 - heif->speed;
/* Default 12 bit save for 16-bit images. HEIC (for example) implements
* 8 / 10 / 12.
*/
if( !vips_object_argument_isset( object, "bitdepth" ) )
heif->bitdepth =
heif->image->Type == VIPS_INTERPRETATION_RGB16 ||
heif->image->Type == VIPS_INTERPRETATION_GREY16 ?
12 : 8;
error = heif_context_get_encoder_for_format( heif->ctx,
(enum heif_compression_format) heif->compression,
&heif->encoder );
if( error.code ) {
if( error.code == heif_error_Unsupported_filetype )
vips_error( "heifsave",
"%s", _( "Unsupported compression" ) );
else
vips__heif_error( &error );
return( -1 );
}
error = heif_encoder_set_lossy_quality( heif->encoder, heif->Q );
if( error.code ) {
vips__heif_error( &error );
return( -1 );
}
error = heif_encoder_set_lossless( heif->encoder, heif->lossless );
if( error.code ) {
vips__heif_error( &error );
return( -1 );
}
error = heif_encoder_set_parameter_integer( heif->encoder,
"speed", 9 - heif->effort );
if( error.code &&
error.subcode != heif_suberror_Unsupported_parameter ) {
vips__heif_error( &error );
return( -1 );
}
chroma = heif->subsample_mode == VIPS_FOREIGN_SUBSAMPLE_OFF ||
(heif->subsample_mode == VIPS_FOREIGN_SUBSAMPLE_AUTO &&
heif->Q >= 90) ? "444" : "420";
error = heif_encoder_set_parameter_string( heif->encoder,
"chroma", chroma );
if( error.code &&
error.subcode != heif_suberror_Unsupported_parameter ) {
vips__heif_error( &error );
return( -1 );
}
/* TODO .. support extra per-encoder params with
* heif_encoder_list_parameters().
*/
heif->page_width = heif->image->Xsize;
heif->page_height = vips_image_get_page_height( heif->image );
heif->n_pages = heif->image->Ysize / heif->page_height;
/* Make a heif image the size of a page. We send sink_disc() output
* here and write a frame each time it fills.
*/
#ifdef DEBUG
printf( "vips_foreign_save_heif_build:\n" );
printf( "\twidth = %d\n", heif->page_width );
printf( "\theight = %d\n", heif->page_height );
printf( "\talpha = %d\n", vips_image_hasalpha( heif->image ) );
#endif /*DEBUG*/
error = heif_image_create( heif->page_width, heif->page_height,
heif_colorspace_RGB,
vips__heif_chroma( heif->bitdepth,
vips_image_hasalpha( heif->image ) ),
&heif->img );
if( error.code ) {
vips__heif_error( &error );
return( -1 );
}
error = heif_image_add_plane( heif->img, heif_channel_interleaved,
heif->page_width, heif->page_height,
heif->bitdepth );
if( error.code ) {
vips__heif_error( &error );
return( -1 );
}
#ifdef DEBUG
vips__heif_image_print( heif->img );
#endif /*DEBUG*/
heif->data = heif_image_get_plane( heif->img,
heif_channel_interleaved, &heif->stride );
/* Write data.
*/
if( vips_sink_disc( heif->image,
vips_foreign_save_heif_write_block, heif ) )
return( -1 );
/* This has to come right at the end :-( so there's no support for
* incremental writes.
*/
writer.writer_api_version = 1;
writer.write = vips_foreign_save_heif_write;
error = heif_context_write( heif->ctx, &writer, heif );
if( error.code ) {
vips__heif_error( &error );
return( -1 );
}
if( vips_target_end( heif->target ) )
return( -1 );
return( 0 );
}
#define UC VIPS_FORMAT_UCHAR
#define US VIPS_FORMAT_USHORT
/* Except for 8-bit inputs, we send everything else to 16. We decide on 8-bit
* vs. 12 bit save based on Type in_build(), see above.
*/
static VipsBandFormat vips_heif_bandfmt[10] = {
/* Band format: UC C US S UI I F X D DX */
/* Promotion: */ UC, UC, US, US, US, US, US, US, US, US
};
static void
vips_foreign_save_heif_class_init( VipsForeignSaveHeifClass *class )
{
GObjectClass *gobject_class = G_OBJECT_CLASS( class );
VipsObjectClass *object_class = (VipsObjectClass *) class;
VipsForeignSaveClass *save_class = (VipsForeignSaveClass *) class;
gobject_class->dispose = vips_foreign_save_heif_dispose;
gobject_class->set_property = vips_object_set_property;
gobject_class->get_property = vips_object_get_property;
object_class->nickname = "heifsave_base";
object_class->description = _( "save image in HEIF format" );
object_class->build = vips_foreign_save_heif_build;
save_class->saveable = VIPS_SAVEABLE_RGBA_ONLY;
save_class->format_table = vips_heif_bandfmt;
VIPS_ARG_INT( class, "Q", 10,
_( "Q" ),
_( "Q factor" ),
VIPS_ARGUMENT_OPTIONAL_INPUT,
G_STRUCT_OFFSET( VipsForeignSaveHeif, Q ),
1, 100, 50 );
VIPS_ARG_INT( class, "bitdepth", 11,
_( "Bit depth" ),
_( "Number of bits per pixel" ),
VIPS_ARGUMENT_OPTIONAL_INPUT,
G_STRUCT_OFFSET( VipsForeignSaveHeif, bitdepth ),
1, 16, 12 );
VIPS_ARG_BOOL( class, "lossless", 13,
_( "Lossless" ),
_( "Enable lossless compression" ),
VIPS_ARGUMENT_OPTIONAL_INPUT,
G_STRUCT_OFFSET( VipsForeignSaveHeif, lossless ),
FALSE );
VIPS_ARG_ENUM( class, "compression", 14,
_( "Compression" ),
_( "Compression format" ),
VIPS_ARGUMENT_OPTIONAL_INPUT,
G_STRUCT_OFFSET( VipsForeignSaveHeif, compression ),
VIPS_TYPE_FOREIGN_HEIF_COMPRESSION,
VIPS_FOREIGN_HEIF_COMPRESSION_HEVC );
VIPS_ARG_INT( class, "effort", 15,
_( "Effort" ),
_( "CPU effort" ),
VIPS_ARGUMENT_OPTIONAL_INPUT,
G_STRUCT_OFFSET( VipsForeignSaveHeif, effort ),
0, 9, 4 );
VIPS_ARG_ENUM( class, "subsample_mode", 16,
_( "Subsample mode" ),
_( "Select chroma subsample operation mode" ),
VIPS_ARGUMENT_OPTIONAL_INPUT,
G_STRUCT_OFFSET( VipsForeignSaveHeif, subsample_mode ),
VIPS_TYPE_FOREIGN_SUBSAMPLE,
VIPS_FOREIGN_SUBSAMPLE_AUTO );
VIPS_ARG_INT( class, "speed", 17,
_( "Speed" ),
_( "CPU effort" ),
VIPS_ARGUMENT_OPTIONAL_INPUT | VIPS_ARGUMENT_DEPRECATED,
G_STRUCT_OFFSET( VipsForeignSaveHeif, speed ),
0, 9, 5 );
}
static void
vips_foreign_save_heif_init( VipsForeignSaveHeif *heif )
{
heif->ctx = heif_context_alloc();
heif->Q = 50;
heif->bitdepth = 12;
heif->compression = VIPS_FOREIGN_HEIF_COMPRESSION_HEVC;
heif->effort = 4;
heif->subsample_mode = VIPS_FOREIGN_SUBSAMPLE_AUTO;
/* Deprecated.
*/
heif->speed = 5;
}
typedef struct _VipsForeignSaveHeifFile {
VipsForeignSaveHeif parent_object;
/* Filename for save.
*/
char *filename;
} VipsForeignSaveHeifFile;
typedef VipsForeignSaveHeifClass VipsForeignSaveHeifFileClass;
G_DEFINE_TYPE( VipsForeignSaveHeifFile, vips_foreign_save_heif_file,
vips_foreign_save_heif_get_type() );
static int
vips_foreign_save_heif_file_build( VipsObject *object )
{
VipsForeignSaveHeif *heif = (VipsForeignSaveHeif *) object;
VipsForeignSaveHeifFile *file = (VipsForeignSaveHeifFile *) object;
if( !(heif->target = vips_target_new_to_file( file->filename )) )
return( -1 );
if( vips_iscasepostfix( file->filename, ".avif" ) )
heif->compression = VIPS_FOREIGN_HEIF_COMPRESSION_AV1;
if( VIPS_OBJECT_CLASS( vips_foreign_save_heif_file_parent_class )->
build( object ) )
return( -1 );
return( 0 );
}
static void
vips_foreign_save_heif_file_class_init( VipsForeignSaveHeifFileClass *class )
{
GObjectClass *gobject_class = G_OBJECT_CLASS( class );
VipsObjectClass *object_class = (VipsObjectClass *) class;
VipsForeignClass *foreign_class = (VipsForeignClass *) class;
gobject_class->set_property = vips_object_set_property;
gobject_class->get_property = vips_object_get_property;
object_class->nickname = "heifsave";
object_class->build = vips_foreign_save_heif_file_build;
foreign_class->suffs = vips__heif_suffs;
VIPS_ARG_STRING( class, "filename", 1,
_( "Filename" ),
_( "Filename to save to" ),
VIPS_ARGUMENT_REQUIRED_INPUT,
G_STRUCT_OFFSET( VipsForeignSaveHeifFile, filename ),
NULL );
}
static void
vips_foreign_save_heif_file_init( VipsForeignSaveHeifFile *file )
{
}
typedef struct _VipsForeignSaveHeifBuffer {
VipsForeignSaveHeif parent_object;
/* Save to a buffer.
*/
VipsArea *buf;
} VipsForeignSaveHeifBuffer;
typedef VipsForeignSaveHeifClass VipsForeignSaveHeifBufferClass;
G_DEFINE_TYPE( VipsForeignSaveHeifBuffer, vips_foreign_save_heif_buffer,
vips_foreign_save_heif_get_type() );
static int
vips_foreign_save_heif_buffer_build( VipsObject *object )
{
VipsForeignSaveHeif *heif = (VipsForeignSaveHeif *) object;
VipsForeignSaveHeifBuffer *buffer =
(VipsForeignSaveHeifBuffer *) object;
VipsBlob *blob;
if( !(heif->target = vips_target_new_to_memory()) )
return( -1 );
if( VIPS_OBJECT_CLASS( vips_foreign_save_heif_buffer_parent_class )->
build( object ) )
return( -1 );
g_object_get( heif->target, "blob", &blob, NULL );
g_object_set( buffer, "buffer", blob, NULL );
vips_area_unref( VIPS_AREA( blob ) );
return( 0 );
}
static void
vips_foreign_save_heif_buffer_class_init(
VipsForeignSaveHeifBufferClass *class )
{
GObjectClass *gobject_class = G_OBJECT_CLASS( class );
VipsObjectClass *object_class = (VipsObjectClass *) class;
VipsForeignClass *foreign_class = (VipsForeignClass *) class;
gobject_class->set_property = vips_object_set_property;
gobject_class->get_property = vips_object_get_property;
object_class->nickname = "heifsave_buffer";
object_class->build = vips_foreign_save_heif_buffer_build;
foreign_class->suffs = vips__heic_suffs;
VIPS_ARG_BOXED( class, "buffer", 1,
_( "Buffer" ),
_( "Buffer to save to" ),
VIPS_ARGUMENT_REQUIRED_OUTPUT,
G_STRUCT_OFFSET( VipsForeignSaveHeifBuffer, buf ),
VIPS_TYPE_BLOB );
}
static void
vips_foreign_save_heif_buffer_init( VipsForeignSaveHeifBuffer *buffer )
{
}
typedef struct _VipsForeignSaveHeifTarget {
VipsForeignSaveHeif parent_object;
VipsTarget *target;
} VipsForeignSaveHeifTarget;
typedef VipsForeignSaveHeifClass VipsForeignSaveHeifTargetClass;
G_DEFINE_TYPE( VipsForeignSaveHeifTarget, vips_foreign_save_heif_target,
vips_foreign_save_heif_get_type() );
static int
vips_foreign_save_heif_target_build( VipsObject *object )
{
VipsForeignSaveHeif *heif = (VipsForeignSaveHeif *) object;
VipsForeignSaveHeifTarget *target =
(VipsForeignSaveHeifTarget *) object;
if( target->target ) {
heif->target = target->target;
g_object_ref( heif->target );
}
if( VIPS_OBJECT_CLASS( vips_foreign_save_heif_target_parent_class )->
build( object ) )
return( -1 );
return( 0 );
}
static void
vips_foreign_save_heif_target_class_init(
VipsForeignSaveHeifTargetClass *class )
{
GObjectClass *gobject_class = G_OBJECT_CLASS( class );
VipsObjectClass *object_class = (VipsObjectClass *) class;
VipsForeignClass *foreign_class = (VipsForeignClass *) class;
gobject_class->set_property = vips_object_set_property;
gobject_class->get_property = vips_object_get_property;
object_class->nickname = "heifsave_target";
object_class->build = vips_foreign_save_heif_target_build;
foreign_class->suffs = vips__heic_suffs;
VIPS_ARG_OBJECT( class, "target", 1,
_( "Target" ),
_( "Target to save to" ),
VIPS_ARGUMENT_REQUIRED_INPUT,
G_STRUCT_OFFSET( VipsForeignSaveHeifTarget, target ),
VIPS_TYPE_TARGET );
}
static void
vips_foreign_save_heif_target_init( VipsForeignSaveHeifTarget *target )
{
}
typedef VipsForeignSaveHeifTarget VipsForeignSaveAvifTarget;
typedef VipsForeignSaveHeifTargetClass VipsForeignSaveAvifTargetClass;
G_DEFINE_TYPE( VipsForeignSaveAvifTarget, vips_foreign_save_avif_target,
vips_foreign_save_heif_target_get_type() );
static void
vips_foreign_save_avif_target_class_init(
VipsForeignSaveAvifTargetClass *class )
{
VipsObjectClass *object_class = (VipsObjectClass *) class;
VipsForeignClass *foreign_class = (VipsForeignClass *) class;
VipsOperationClass *operation_class = (VipsOperationClass *) class;
object_class->nickname = "avifsave_target";
object_class->description = _( "save image in AVIF format" );
foreign_class->suffs = vips__avif_suffs;
/* Hide from UI.
*/
operation_class->flags |= VIPS_OPERATION_DEPRECATED;
}
static void
vips_foreign_save_avif_target_init( VipsForeignSaveAvifTarget *target )
{
VipsForeignSaveHeif *heif = (VipsForeignSaveHeif *) target;
heif->compression = VIPS_FOREIGN_HEIF_COMPRESSION_AV1;
}
#endif /*HAVE_HEIF_ENCODER*/
/* The C API wrappers are defined in foreign.c.
*/
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