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Sunshine/cmake/dependencies/FindOpus.cmake
2026-03-05 20:08:34 -05:00

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CMake

# Copyright 2019-2022, Collabora, Ltd.
#
# SPDX-License-Identifier: BSL-1.0
#
# Distributed under the Boost Software License, Version 1.0.
# (See accompanying file LICENSE_1_0.txt or copy at
# http://www.boost.org/LICENSE_1_0.txt)
#
# Original Author:
# 2019-2022 Rylie Pavlik <rylie.pavlik@collabora.com> <rylie@ryliepavlik.com>
#[[.rst:
FindOpus
---------------
Find the opus codec library.
Targets
^^^^^^^
If successful, the following imported target is created
* ``Opus::opus``
Cache variables
^^^^^^^^^^^^^^^
The following cache variable may also be set to assist/control the operation of this module:
``Opus_ROOT_DIR``
The root to search for opus.
#]]
set(Opus_ROOT_DIR # cmake-lint: disable=C0103
"${Opus_ROOT_DIR}"
CACHE PATH "Root to search for opus")
option(OPUS_USE_STATIC "Prefer linking against a static Opus library" OFF)
# Todo: handle in-tree/fetch-content builds?
if(NOT OPUS_FOUND)
# Look for a CMake config file
find_package(Opus QUIET NO_MODULE)
endif()
if(TARGET opus)
# for fetch content/in tree
set(Opus_LIBRARY opus) # cmake-lint: disable=C0103
endif()
if(NOT ANDROID)
find_package(PkgConfig QUIET)
if(PKG_CONFIG_FOUND)
set(_old_prefix_path "${CMAKE_PREFIX_PATH}")
# So pkg-config uses Opus_ROOT_DIR too.
if(Opus_ROOT_DIR)
list(APPEND CMAKE_PREFIX_PATH ${Opus_ROOT_DIR})
endif()
pkg_check_modules(PC_opus QUIET opus)
# Restore
set(CMAKE_PREFIX_PATH "${_old_prefix_path}")
endif()
endif()
set(_opus_library_names opus)
if(OPUS_USE_STATIC)
set(_opus_library_names libopus opus)
endif()
# Temporarily prefer static suffixes when requested.
set(_old_find_suffixes "${CMAKE_FIND_LIBRARY_SUFFIXES}")
if(OPUS_USE_STATIC)
set(CMAKE_FIND_LIBRARY_SUFFIXES ".a" ".lib" ${_old_find_suffixes})
endif()
find_path(
Opus_INCLUDE_DIR
NAMES opus/opus.h
PATHS ${Opus_ROOT_DIR}
HINTS ${PC_opus_INCLUDE_DIRS} ${OPUS_INCLUDE_DIR} ${OPUS_INCLUDE_DIRS}
PATH_SUFFIXES include)
find_library(
Opus_LIBRARY
NAMES ${_opus_library_names}
PATHS ${Opus_ROOT_DIR}
HINTS ${PC_opus_LIBRARY_DIRS}
PATH_SUFFIXES lib)
set(CMAKE_FIND_LIBRARY_SUFFIXES "${_old_find_suffixes}")
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(Opus REQUIRED_VARS Opus_LIBRARY
Opus_INCLUDE_DIR)
if(Opus_FOUND)
if(NOT TARGET Opus::opus)
if(TARGET ${Opus_LIBRARY})
# we want an alias
add_library(Opus::opus ALIAS ${Opus_LIBRARY})
else()
# we want an imported target
if(OPUS_USE_STATIC)
add_library(Opus::opus STATIC IMPORTED)
else()
add_library(Opus::opus UNKNOWN IMPORTED)
endif()
set_target_properties(
Opus::opus
PROPERTIES INTERFACE_INCLUDE_DIRECTORIES "${Opus_INCLUDE_DIR}"
IMPORTED_LINK_INTERFACE_LANGUAGES "C"
IMPORTED_LOCATION ${Opus_LIBRARY})
endif()
endif()
mark_as_advanced(Opus_INCLUDE_DIR Opus_LIBRARY)
endif()
mark_as_advanced(Opus_ROOT_DIR)
include(FeatureSummary)
set_package_properties(
Opus PROPERTIES
URL "https://opus-codec.org/"
DESCRIPTION
"The reference library implementation for the audio codec of the same name."
)