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fetch HEIC metadata from the main image

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since thumbs don't have it, see https://github.com/libvips/libvips/issues/1373
This commit is contained in:
John Cupitt 2019-07-24 16:06:49 +01:00
parent 8cf6a9f9ca
commit 3510e7abcf
2 changed files with 46 additions and 24 deletions
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1
ChangeLog
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@ -1,6 +1,7 @@
9/7/19 started 8.8.2
- better early shutdown in readers
- don't attempt to save large XMP to jpeg [tnextday]
- always fetch HEIC metadata from the main image [zhoux2016]
24/5/19 started 8.8.1
- improve realpath() use on older libc

69
libvips/foreign/heifload.c
View File

@ -2,6 +2,8 @@
*
* 19/1/19
* - from niftiload.c
* 24/7/19 [zhoux2016]
* - always fetch metadata from the main image (thumbs don't have it)
*/
/*
@ -247,19 +249,26 @@ vips_foreign_load_heif_set_page( VipsForeignLoadHeif *heif,
static int
vips_foreign_load_heif_set_header( VipsForeignLoadHeif *heif, VipsImage *out )
{
/* FIXME ... never seen this return TRUE on any image, strangely.
*/
gboolean has_alpha =
heif_image_handle_has_alpha_channel( heif->handle );
int bands = has_alpha ? 4 : 3;
gboolean has_alpha;
int bands;
int i;
/* Surely, 16 metadata items will be enough for anyone.
*/
int i;
heif_item_id id[16];
int n_metadata;
struct heif_error error;
/* We take the metadata from the non-thumbnail first page. HEIC
* thumbnails don't have metadata.
*/
if( vips_foreign_load_heif_set_page( heif, heif->page, FALSE ) )
return( -1 );
/* FIXME ... never seen this return TRUE on any image, strangely.
*/
has_alpha = heif_image_handle_has_alpha_channel( heif->handle );
bands = has_alpha ? 4 : 3;
/* FIXME .. need to test XMP and IPCT.
*/
n_metadata = heif_image_handle_get_list_of_metadata_block_IDs(
@ -399,7 +408,8 @@ vips_foreign_load_heif_set_header( VipsForeignLoadHeif *heif, VipsImage *out )
}
static int
vips_foreign_load_heif_get_width( VipsForeignLoadHeif *heif )
vips_foreign_load_heif_get_width( VipsForeignLoadHeif *heif,
struct heif_image_handle *handle )
{
int width;
@ -407,24 +417,25 @@ vips_foreign_load_heif_get_width( VipsForeignLoadHeif *heif )
* added in 1.3.4. Without it, we just use the transformed dimension
* and have to autorotate.
*/
width = heif_image_handle_get_width( heif->handle );
width = heif_image_handle_get_width( handle );
#ifdef HAVE_HEIF_IMAGE_HANDLE_GET_ISPE_WIDTH
if( !heif->autorotate )
width = heif_image_handle_get_ispe_width( heif->handle );
if( !heif->autorotate )
width = heif_image_handle_get_ispe_width( handle );
#endif /*HAVE_HEIF_IMAGE_HANDLE_GET_ISPE_WIDTH*/
return( width );
}
static int
vips_foreign_load_heif_get_height( VipsForeignLoadHeif *heif )
vips_foreign_load_heif_get_height( VipsForeignLoadHeif *heif,
struct heif_image_handle *handle )
{
int height;
height = heif_image_handle_get_height( heif->handle );
height = heif_image_handle_get_height( handle );
#ifdef HAVE_HEIF_IMAGE_HANDLE_GET_ISPE_WIDTH
if( !heif->autorotate )
height = heif_image_handle_get_ispe_height( heif->handle );
height = heif_image_handle_get_ispe_height( handle );
#endif /*HAVE_HEIF_IMAGE_HANDLE_GET_ISPE_WIDTH*/
return( height );
@ -473,6 +484,10 @@ vips_foreign_load_heif_header( VipsForeignLoad *load )
}
#ifdef DEBUG
#ifdef HAVE_HEIF_IMAGE_HANDLE_GET_ISPE_WIDTH
if( !heif->autorotate )
printf( "using _get_ispe_width() / _height()\n" );
#endif /*HAVE_HEIF_IMAGE_HANDLE_GET_ISPE_WIDTH*/
for( i = heif->page; i < heif->page + heif->n; i++ ) {
heif_item_id thumb_ids[1];
int n_items;
@ -503,9 +518,11 @@ vips_foreign_load_heif_header( VipsForeignLoad *load )
printf( " thumb %d\n", j );
printf( " width = %d\n",
heif_image_handle_get_width( thumb_handle ) );
vips_foreign_load_heif_get_width( heif,
thumb_handle ) );
printf( " height = %d\n",
heif_image_handle_get_height( thumb_handle ) );
vips_foreign_load_heif_get_height( heif,
thumb_handle ) );
}
}
#endif /*DEBUG*/
@ -515,16 +532,18 @@ vips_foreign_load_heif_header( VipsForeignLoad *load )
if( vips_foreign_load_heif_set_page( heif,
heif->page, heif->thumbnail ) )
return( -1 );
heif->page_width = vips_foreign_load_heif_get_width( heif );
heif->page_height = vips_foreign_load_heif_get_height( heif );
heif->page_width = vips_foreign_load_heif_get_width( heif,
heif->handle );
heif->page_height = vips_foreign_load_heif_get_height( heif,
heif->handle );
for( i = heif->page + 1; i < heif->page + heif->n; i++ ) {
if( vips_foreign_load_heif_set_page( heif,
i, heif->thumbnail ) )
return( -1 );
if( vips_foreign_load_heif_get_width( heif ) !=
heif->page_width ||
vips_foreign_load_heif_get_height( heif ) !=
heif->page_height ) {
if( vips_foreign_load_heif_get_width( heif,
heif->handle ) != heif->page_width ||
vips_foreign_load_heif_get_height( heif,
heif->handle ) != heif->page_height ) {
vips_error( class->nickname, "%s",
_( "not all pages are the same size" ) );
return( -1 );
@ -538,9 +557,11 @@ vips_foreign_load_heif_header( VipsForeignLoad *load )
if( vips_foreign_load_heif_set_page( heif, i, FALSE ) )
return( -1 );
printf( " width = %d\n",
heif_image_handle_get_width( heif->handle ) );
vips_foreign_load_heif_get_width( heif,
heif->handle ) );
printf( " height = %d\n",
heif_image_handle_get_height( heif->handle ) );
vips_foreign_load_heif_get_height( heif,
heif->handle ) );
printf( " has_depth = %d\n",
heif_image_handle_has_depth_image( heif->handle ) );
printf( " has_alpha = %d\n",