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add XMP read to heifload

This commit is contained in:
John Cupitt 2019-01-28 14:30:12 +00:00
parent ed7c6b9fd4
commit 472f9da0ad
1 changed files with 13 additions and 7 deletions
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20
libvips/foreign/heifload.c
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@ -250,13 +250,6 @@ vips_foreign_load_heif_set_header( VipsForeignLoadHeif *heif, VipsImage *out )
unsigned char *data;
char name[256];
/* exif has a special name.
*/
if( strcasecmp( type, "exif" ) == 0 )
vips_snprintf( name, 256, VIPS_META_EXIF_NAME );
else
vips_snprintf( name, 256, "heif-%s-%d", type, i );
printf( "metadata type = %s, length = %zd\n", type, length );
if( !(data = VIPS_ARRAY( out, length, unsigned char )) )
@ -276,6 +269,19 @@ vips_foreign_load_heif_set_header( VipsForeignLoadHeif *heif, VipsImage *out )
length -= 4;
}
/* exif has a special name.
*
* XMP metadata is just attached with the "mime" type, and
* usually start with "<x:xmpmeta".
*/
if( strcasecmp( type, "exif" ) == 0 )
vips_snprintf( name, 256, VIPS_META_EXIF_NAME );
else if( strcasecmp( type, "mime" ) == 0 &&
vips_isprefix( "<x:xmpmeta", (const char *) data ) )
snprintf( name, 256, VIPS_META_XMP_NAME );
else
vips_snprintf( name, 256, "heif-%s-%d", type, i );
vips_image_set_blob( out, name,
(VipsCallbackFn) NULL, data, length );