vcpkg/ports/fdk-aac/portfile.cmake
Be d306ab43c7
[fdk-aac] make patent-encumbered HE-AAC optional (#16007)
* [fdk-aac] make patent-encumbered HE-AAC optional

By default, use a fork of fdk-aac (which was originally written
by Fraunhofer for the Android Open Source Project) which has
support for the patent-encumbered HE-AAC, HE-AACv2, and xHE-AAC
profiles removed. This fork is used by Fedora and Arch Linux to
provide support for most AAC use cases without patent licensing
fees and to permit combining it with GPL software. The upstream
fdk-aac with support for all AAC profiles can be built with the
new 'he-aac' option for this port.

Fedora Legal's opinion, from
https://bugzilla.redhat.com/show_bug.cgi?id=1501522#c112 :
The Fedora Project is aware that the Free Software Foundation
has stated that the Fraunhofer FDK AAC license is GPL
incompatible, specifically, because of Clause 3.

We believe that the fdk-aac software codec implementation that we
wish to include in Fedora is no longer encumbered by AAC patents.
This fact means that Clause 3 in the FDK AAC license is a "no op",
or to put it plainly, if no patents are in play, there are no
patent licenses to disclaim. For this (and only this) specific
implementation of fdk-aac, we believe that the FDK AAC license is
GPL compatible.

Also:
* remove restriction on dynamic linking. Upstream has a .def
file which is used by CMake.
* replace deprecated vcpkg functions

* [ffmpeg] use fdk-aac[he-aac] for fdk-aac feature

There is no point to this feature without HE-AAC because FFmpeg has
its own AAC codec that does not support HE-AAC.
2021-08-12 15:56:51 -07:00

37 lines
1.3 KiB
CMake

vcpkg_check_features(OUT_FEATURE_OPTIONS FEATURE_OPTIONS FEATURES
FEATURES
he-aac HE_AAC
)
if(HE_AAC)
vcpkg_from_github(
REPO mstorsjo/fdk-aac
REF v2.0.2
SHA512 616207e85035d1659a2b7808ca6ec02ef53c1c4b39eb280fe861f82a4cf548e5db2ac381c496bad37dfc2b8c6677fe704d9fd8449e43d1f93d3e636239e0191b
HEAD_REF master
OUT_SOURCE_PATH SOURCE_PATH
)
else()
vcpkg_from_gitlab(
GITLAB_URL https://gitlab.freedesktop.org/
REPO wtaymans/fdk-aac-stripped
REF 585981a49f2186b0d2e47c64bf6b5abf539395f8 # corresponds to v2.0.2 tag in mstorsjo/fdk-aac GitHub repository
HEAD_REF stripped4
SHA512 e0e56396ed0be427302ed4b54fc6e8dc522a172c288b7c1ec40cc3a9ceb13518ca7bbb874bc71b88b2a91e0bbbe4ad0bab6910efa1db63d91e6370976641bac4
OUT_SOURCE_PATH SOURCE_PATH
)
endif()
vcpkg_cmake_configure(
SOURCE_PATH ${SOURCE_PATH}
OPTIONS_RELEASE -DBUILD_PROGRAMS=OFF
)
vcpkg_cmake_install()
vcpkg_cmake_config_fixup(CONFIG_PATH "lib/cmake/${PORT}")
vcpkg_fixup_pkgconfig()
vcpkg_copy_pdbs()
vcpkg_copy_tool_dependencies("${CURRENT_PACKAGES_DIR}/tools/${PORT}")
file(INSTALL "${SOURCE_PATH}/NOTICE" DESTINATION "${CURRENT_PACKAGES_DIR}/share/${PORT}" RENAME "copyright")
file(REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}/debug/include")