https://bugs.kde.org/show_bug.cgi?id=398582
--- Comment #129 from caulier.gil...@gmail.com ---
libavif notes about codecs are listed below :
No AV1 codecs are enabled by default. Enable them by enabling any of the
following CMake options (e.g. -DAVIF_CODEC_AOM=ON):
AVIF_CODEC_AOM for libaom (encoder and decoder)
AVIF_CODEC_DAV1D for dav1d (decoder)
AVIF_CODEC_LIBGAV1 for libgav1 (decoder)
AVIF_CODEC_RAV1E for rav1e (encoder)
AVIF_CODEC_SVT for SVT-AV1 (encoder)
These libraries (in their C API form) must be externally available
(discoverable via CMake's FIND_LIBRARY) to use them, or if libavif is a child
CMake project, the appropriate CMake target must already exist by the time
libavif's CMake scripts are executed.
libavif come from VCPKG package. The port file is this one :
gilles@KU23:~/Devel/Devel/vcpkg/ports/libavif$ cat portfile.cmake
vcpkg_from_github(
OUT_SOURCE_PATH SOURCE_PATH
REPO AOMediaCodec/libavif
REF "v${VERSION}"
SHA512
f7c35e40f9214314afeae69d5da6ab345e6dbd025e737a920ea4270452cdf7ff7010d7af5cc18d27e93b217114eb6b613cd349703d0e1bb7814dbeb84a9fd70f
HEAD_REF master
PATCHES
disable-source-utf8.patch
find-dependency.patch # from
https://github.com/AOMediaCodec/libavif/pull/1339
)
vcpkg_check_features(OUT_FEATURE_OPTIONS FEATURE_OPTIONS
FEATURES
aom AVIF_CODEC_AOM
)
vcpkg_cmake_configure(
SOURCE_PATH "${SOURCE_PATH}"
OPTIONS
-DAVIF_BUILD_APPS=OFF
-DCMAKE_REQUIRE_FIND_PACKAGE_libyuv=ON
${FEATURE_OPTIONS}
)
vcpkg_cmake_install()
vcpkg_copy_pdbs()
# Move cmake configs
vcpkg_cmake_config_fixup(CONFIG_PATH lib/cmake/${PORT})
# Fix pkg-config files
vcpkg_fixup_pkgconfig()
# Remove duplicate files
file(REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}/debug/include"
"${CURRENT_PACKAGES_DIR}/debug/share")
# Handle copyright
vcpkg_install_copyright(FILE_LIST "${SOURCE_PATH}/LICENSE")
...and the json conf :
gilles@KU23:~/Devel/Devel/vcpkg/ports/libavif$ cat vcpkg.json
{
"name": "libavif",
"version-semver": "1.0.1",
"description": "Library for encoding and decoding AVIF files",
"homepage": "https://github.com/AOMediaCodec/libavif";,
"license": "BSD-2-Clause AND Apache-2.0",
"dependencies": [
"libyuv",
{
"name": "vcpkg-cmake",
"host": true
},
{
"name": "vcpkg-cmake-config",
"host": true
}
],
"features": {
"aom": {
"description": "AV1 codec library",
"dependencies": [
"aom"
]
}
}
}
Look well, no codec is enable, and AOM is the only one provided as option, not
enabled by default. This want mean that libavif decode nothing, as i don't
enable the aom codec while building.
NOTE: This VCPKG rules is stupid at all. Why to provide a library which can the
essential by default ?
Gilles
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