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Merge pull request #1679 from lovell/heifload-fixes-nclx-hdr 

heifload: ignore nclx colour profiles, ensure assumed uchar format
This commit is contained in:
John Cupitt 2020-06-10 13:51:50 +01:00 committed by GitHub
parent dbae22ab58 221ad1b9b3
commit f2688ee6c1
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 25 additions and 5 deletions
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12
configure.ac
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@ -940,6 +940,18 @@ if test x"$with_heif" = x"yes"; then
LIBS="$save_LIBS"
fi
# heif_decoding_options.convert_hdr_to_8bit added in 1.7.0
if test x"$with_heif" = x"yes"; then
save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $HEIF_CFLAGS"
AC_CHECK_MEMBER([struct heif_decoding_options.convert_hdr_to_8bit],[
AC_DEFINE(HAVE_HEIF_DECODING_OPTIONS_CONVERT_HDR_TO_8BIT,1,
[define if you have heif_decoding_options.convert_hdr_to_8bit])
],[],
[#include <libheif/heif.h>])
CFLAGS="$save_CFLAGS"
fi
# pdfium
AC_ARG_WITH([pdfium],
AS_HELP_STRING([--without-pdfium], [build without pdfium (default: test)]))

18
libvips/foreign/heifload.c
View File

@ -419,11 +419,11 @@ vips_foreign_load_heif_set_header( VipsForeignLoadHeif *heif, VipsImage *out )
}
#ifdef HAVE_HEIF_COLOR_PROFILE
#ifdef DEBUG
{
enum heif_color_profile_type profile_type =
heif_image_handle_get_color_profile_type( heif->handle );
#ifdef DEBUG
{
printf( "profile type = " );
switch( profile_type ) {
case heif_color_profile_type_not_present:
@ -450,10 +450,10 @@ vips_foreign_load_heif_set_header( VipsForeignLoadHeif *heif, VipsImage *out )
}
#endif /*DEBUG*/
/* FIXME should probably check the profile type ... lcms seems to be
* able to load at least rICC and prof.
/* lcms can load standard (prof) and reduced (rICC) profiles
*/
if( heif_image_handle_get_color_profile_type( heif->handle ) ) {
if( profile_type == heif_color_profile_type_prof ||
profile_type == heif_color_profile_type_rICC ) {
size_t length = heif_image_handle_get_raw_color_profile_size(
heif->handle );
@ -475,6 +475,9 @@ vips_foreign_load_heif_set_header( VipsForeignLoadHeif *heif, VipsImage *out )
vips_image_set_blob( out, VIPS_META_ICC_NAME,
(VipsCallbackFn) NULL, data, length );
}
else if( profile_type == heif_color_profile_type_nclx ) {
g_warning( "heifload: ignoring nclx profile" );
}
#endif /*HAVE_HEIF_COLOR_PROFILE*/
/* If we are using libheif's autorotate, remove the exif one.
@ -717,6 +720,11 @@ vips_foreign_load_heif_generate( VipsRegion *or,
#ifdef HAVE_HEIF_IMAGE_HANDLE_GET_ISPE_WIDTH
options->ignore_transformations = !heif->autorotate;
#endif /*HAVE_HEIF_IMAGE_HANDLE_GET_ISPE_WIDTH*/
#ifdef HAVE_HEIF_DECODING_OPTIONS_CONVERT_HDR_TO_8BIT
/* VIPS_FORMAT_UCHAR is assumed so downsample HDR to 8bpc
*/
options->convert_hdr_to_8bit = TRUE;
#endif /*HAVE_HEIF_DECODING_OPTIONS_CONVERT_HDR_TO_8BIT*/
error = heif_decode_image( heif->handle, &heif->img,
heif_colorspace_RGB, chroma,
options );