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CMakeLists.txt

cmake_minimum_required ( VERSION 3.23)

# Only interpret if() arguments as variables or keywords when unquoted.

cmake_policy ( SET CMP0054 NEW )

# MSVC runtime library flags are selected by an abstraction.

cmake_policy ( SET CMP0091 NEW )

set (SORA_CPP_SDK_TARGET "" CACHE STRING "ビルドターゲット" )

set (WEBRTC_INCLUDE_DIR "" CACHE PATH "WebRTC のインクルードディレクトリ" )

set (WEBRTC_LIBRARY_DIR "" CACHE PATH "WebRTC のライブラリディレクトリ" )

set (WEBRTC_LIBRARY_NAME "webrtc" CACHE STRING "WebRTC のライブラリ名" )

set (USE_LIBCXX OFF CACHE BOOL "libstdc++ の代わりに libc++ を使うかどうか" )

set (LIBCXX_INCLUDE_DIR "" CACHE PATH "libc++ を使う場合の libc++ のインクルードディレクトリ \n 空文字だった場合はデフォルト検索パスの libc++ を利用する" )

set (USE_NVCODEC_ENCODER OFF CACHE BOOL "NVIDIA Video Codec SDK によるハードウェアエンコーダを利用するかどうか" )

project (sora-cpp-sdk C CXX)

set (SORA_TARGET ${SORA_CPP_SDK_TARGET} )

if (SORA_TARGET STREQUAL "windows_x86_64" )

set (SORA_TARGET_OS "windows" )

set (SORA_TARGET_ARCH "x86_64" )

set (SORA_TARGET_DEF "SORA_CPP_SDK_WINDOWS" )

elseif (SORA_TARGET STREQUAL "macos_x86_64" )

set (SORA_TARGET_OS "macos" )

set (SORA_TARGET_ARCH "x86_64" )

set (SORA_TARGET_DEF "SORA_CPP_SDK_MACOS" )

elseif (SORA_TARGET STREQUAL "macos_arm64" )

set (SORA_TARGET_OS "macos" )

set (SORA_TARGET_ARCH "arm64" )

set (SORA_TARGET_DEF "SORA_CPP_SDK_MACOS" )

elseif (SORA_TARGET STREQUAL "ios" )

set (SORA_TARGET_OS "ios" )

set (SORA_TARGET_DEF "SORA_CPP_SDK_IOS" )

elseif (SORA_TARGET STREQUAL "android" )

set (SORA_TARGET_OS "android" )

set (SORA_TARGET_DEF "SORA_CPP_SDK_ANDROID" )

elseif (SORA_TARGET STREQUAL "ubuntu-20.04_x86_64" )

set (SORA_TARGET_OS "ubuntu" )

set (SORA_TARGET_OS_VERSION "20.04" )

set (SORA_TARGET_ARCH "x86_64" )

set (SORA_TARGET_DEF "SORA_CPP_SDK_UBUNTU_2004" )

elseif (SORA_TARGET STREQUAL "ubuntu-22.04_x86_64" )

set (SORA_TARGET_OS "ubuntu" )

set (SORA_TARGET_OS_VERSION "22.04" )

set (SORA_TARGET_ARCH "x86_64" )

set (SORA_TARGET_DEF "SORA_CPP_SDK_UBUNTU_2204" )

elseif (SORA_TARGET STREQUAL "ubuntu-24.04_x86_64" )

set (SORA_TARGET_OS "ubuntu" )

set (SORA_TARGET_OS_VERSION "24.04" )

set (SORA_TARGET_ARCH "x86_64" )

set (SORA_TARGET_DEF "SORA_CPP_SDK_UBUNTU_2404" )

endif ()

list ( APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR} /cmake)

if (USE_VPL_ENCODER)

list ( APPEND CMAKE_PREFIX_PATH ${VPL_ROOT_DIR} /lib/cmake/vpl)

endif ()

set (Boost_USE_STATIC_LIBS ON )

if ( WIN32 )

set (Boost_USE_STATIC_RUNTIME ON )

endif ()

set (CMAKE_FIND_ROOT_PATH_MODE_LIBRARY NEVER)

set (CMAKE_FIND_ROOT_PATH_MODE_INCLUDE NEVER)

set (CMAKE_FIND_ROOT_PATH_MODE_PACKAGE NEVER)

find_package (WebRTC REQUIRED )

find_package (Boost REQUIRED COMPONENTS json filesystem)

find_package (Threads REQUIRED )

set (CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY )

set (CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY )

set (CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY )

# libsora.a を作る

add_library (sora STATIC )

set_target_properties (sora PROPERTIES CXX_STANDARD 20 C_STANDARD 20)

string ( SUBSTRING " ${SORA_CPP_SDK_COMMIT} " 0 8 SORA_CPP_SDK_COMMIT_SHORT)

string ( SUBSTRING " ${WEBRTC_COMMIT} " 0 8 WEBRTC_COMMIT_SHORT)

configure_file (src/version.gen.h.template ${CMAKE_CURRENT_BINARY_DIR} /version.gen.h)

target_include_directories (sora PRIVATE ${CMAKE_CURRENT_BINARY_DIR} )

target_sources (sora

PRIVATE

src/aligned_encoder_adapter.cpp

src/audio_device_module.cpp

src/audio_output_helper.cpp

src/camera_device_capturer.cpp

src/data_channel.cpp

src/default_video_formats.cpp

src/device_list.cpp

src/device_video_capturer.cpp

src/i420_encoder_adapter.cpp

src/java_context.cpp

src/open_h264_video_encoder.cpp

src/rtc_ssl_verifier.cpp

src/rtc_stats.cpp

src/scalable_track_source.cpp

src/session_description.cpp

src/sora_client_context.cpp

src/sora_peer_connection_factory.cpp

src/sora_signaling.cpp

src/sora_video_decoder_factory.cpp

src/sora_video_encoder_factory.cpp

src/srtp_keying_material_exporter.cpp

src/ssl_verifier.cpp

src/url_parts.cpp

src/version.cpp

src/websocket.cpp

src/zlib_helper.cpp

)

target_compile_definitions (sora PRIVATE ${SORA_TARGET_DEF} )

# インストールするヘッダーファイル

file ( GLOB_RECURSE SORA_HEADERS RELATIVE ${CMAKE_SOURCE_DIR} "include/*" )

target_sources (sora

PUBLIC

FILE_SET HEADERS

BASE_DIRS include

FILES ${SORA_HEADERS} )

# NvCodec が無効な場合もダミーの実装をコンパイルする

if ( NOT USE_NVCODEC_ENCODER)

target_sources (sora PRIVATE src/cuda_context_cuda.cpp)

endif ()

target_link_libraries (sora

PUBLIC

WebRTC::webrtc

Boost::json

Boost::filesystem

)

if (USE_LIBCXX)

target_compile_options (sora

PRIVATE

"$<$<COMPILE_LANGUAGE:CXX>:-nostdinc++>"

"$<$<AND:$<COMPILE_LANGUAGE:CXX>,$<BOOL:LIBCXX_INCLUDE_DIR>>:-isystem ${LIBCXX_INCLUDE_DIR} >"

)

endif ()

target_include_directories (sora PRIVATE ${CMAKE_CURRENT_SOURCE_DIR} /include)

target_include_directories (sora INTERFACE $< BUILD_INTERFACE : ${CMAKE_CURRENT_SOURCE_DIR} > $< INSTALL_INTERFACE :include>)

target_compile_definitions (sora

PRIVATE

$<$<BOOL: ${USE_NVCODEC_ENCODER} >:USE_NVCODEC_ENCODER>

$<$<BOOL: ${USE_VPL_ENCODER} >:USE_VPL_ENCODER>

)

# OpenH264

target_include_directories (sora PRIVATE ${OPENH264_ROOT} /include)

# 指定したライブラリを自身の静的ライブラリにバンドルする

function (bundle_static_library target static_libs bundled_target)

file ( MAKE_DIRECTORY ${CMAKE_BINARY_DIR} /bundled)

set (bundled_tgt_full_name

${CMAKE_BINARY_DIR} /bundled/ ${CMAKE_STATIC_LIBRARY_PREFIX}${target}${CMAKE_STATIC_LIBRARY_SUFFIX} )

if (MSVC)

add_custom_command (

COMMAND ${CMAKE_AR} /NOLOGO /OUT: ${bundled_tgt_full_name} $< TARGET_FILE : ${target} > ${static_libs}

OUTPUT ${bundled_tgt_full_name}

VERBATIM

COMMENT "Bundling libs: ${static_libs} to $<TARGET_FILE: ${target} >" )

else ()

file ( WRITE ${CMAKE_BINARY_DIR} / ${bundled_target} .ar.in "CREATE ${bundled_tgt_full_name} \n " )

file ( APPEND ${CMAKE_BINARY_DIR} / ${bundled_target} .ar.in "ADDLIB $<TARGET_FILE: ${target} > \n " )

foreach (lib IN LISTS static_libs)

file ( APPEND ${CMAKE_BINARY_DIR} / ${bundled_target} .ar.in "ADDLIB ${lib} \n " )

endforeach ()

file ( APPEND ${CMAKE_BINARY_DIR} / ${bundled_target} .ar.in "SAVE \n " )

file ( APPEND ${CMAKE_BINARY_DIR} / ${bundled_target} .ar.in "END \n " )

file ( GENERATE

OUTPUT ${CMAKE_BINARY_DIR} / ${bundled_target} .ar

INPUT ${CMAKE_BINARY_DIR} / ${bundled_target} .ar.in)

add_custom_command (

COMMAND ${CMAKE_AR} -M < ${CMAKE_BINARY_DIR} / ${bundled_target} .ar

OUTPUT ${bundled_tgt_full_name}

VERBATIM

COMMENT "Bundling libs: ${static_libs} to $<TARGET_FILE: ${target} >" )

endif ()

add_custom_target ( ${bundled_target} _bundling ALL DEPENDS ${bundled_tgt_full_name} )

add_dependencies ( ${bundled_target} _bundling ${target} )

add_library ( ${bundled_target} STATIC IMPORTED )

set_target_properties ( ${bundled_target}

PROPERTIES

IMPORTED_LOCATION ${bundled_tgt_full_name}

INTERFACE_INCLUDE_DIRECTORIES $<TARGET_PROPERTY: ${target} ,INTERFACE_INCLUDE_DIRECTORIES>)

add_dependencies ( ${bundled_target} ${bundled_target} _bundling)

endfunction ()

set (BUNDLE_STATIC_LIBS)

if (SORA_TARGET_OS STREQUAL "windows" )

# 文字コードを utf-8 として扱うのと、シンボルテーブル数を増やす

target_compile_options (sora PRIVATE /utf-8 /bigobj)

set_target_properties (sora

PROPERTIES

# CRTライブラリを静的リンクさせる

MSVC_RUNTIME_LIBRARY "MultiThreaded$<$<CONFIG:Debug>:Debug>"

)

target_link_libraries (sora

PUBLIC

# dbghelp.lib

# delayimp.lib

# dnsapi.lib

# msimg32.lib

# oleaut32.lib

# psapi.lib

# shell32.lib

# shlwapi.lib

# usp10.lib

# version.lib

# wininet.lib

winmm.lib

ws2_32.lib

# amstrmid.lib

Strmiids.lib

# crypt32.lib

dmoguids.lib

iphlpapi.lib

msdmo.lib

Secur32.lib

wmcodecdspuuid.lib

)

target_compile_definitions (sora

PRIVATE

_CONSOLE

_WIN32_WINNT=0x0A00

WEBRTC_WIN

NOMINMAX

WIN32_LEAN_AND_MEAN

UNICODE

_UNICODE

)

target_compile_definitions (sora

PUBLIC

WEBRTC_WIN

RTC_ENABLE_H265

_ITERATOR_DEBUG_LEVEL=0

)

if (USE_NVCODEC_ENCODER)

target_sources (sora

PRIVATE

src/hwenc_nvcodec/nvcodec_video_encoder.cpp

third_party/NvCodec/NvCodec/NvEncoder/NvEncoder.cpp

third_party/NvCodec/NvCodec/NvEncoder/NvEncoderD3D11.cpp

src/hwenc_nvcodec/nvcodec_video_decoder.cpp)

target_include_directories (sora

PRIVATE

third_party/NvCodec/include

third_party/NvCodec/NvCodec)

target_link_libraries (sora

PRIVATE

DXGI.lib

D3D11.lib

)

# enable_language(CUDA) は CUDA 用 Visual Studio Integration を利用して CUDA を検出しているが、

# CUDA ドライバがインストールできない場所では VS Integration をインストールできないため、

# enable_language(CUDA) は利用できない。

# なので（deprecated だけど）FindCUDA を利用してコンパイルする。

find_package (CUDA REQUIRED )

set_source_files_properties (

src/cuda_context_cuda.cpp

third_party/NvCodec/NvCodec/NvDecoder/NvDecoder.cpp

src/hwenc_nvcodec/nvcodec_decoder_cuda.cpp

PROPERTIES

CUDA_SOURCE_PROPERTY_FORMAT OBJ

)

cuda_compile(CUDA_FILES

src/cuda_context_cuda.cpp

third_party/NvCodec/NvCodec/NvDecoder/NvDecoder.cpp

src/hwenc_nvcodec/nvcodec_decoder_cuda.cpp

OPTIONS

# VS 2022 の 17.10.x 以上に上げると、ツールセットのバージョンが 14.40 以上になってしまい、以下のエラーが出るため -allow-unsupported-compiler を指定する

# G:\dev\sora-cpp-sdk\_install\windows_x86_64\release\cuda\include\crt/host_config.h(153): fatal error C1189: #error: -- unsupported Microsoft Visual Studio version! Only the versions between 20 17 and 2022 (inclusive) are supported! The nvcc flag '-allow-unsupported-compiler' can be used to override this version check; however, using an unsupported host compiler may cause compilation failure or incorrect run time execution. Use at your own risk. [G:\dev\sora-cpp-sdk\_build\windows_x86_64\release\sora\sora.vcxproj]

# host_config.h では以下のような記述になっている

# ```

# #if _MSC_VER < 1910 || _MSC_VER >= 1940

# #error -- unsupported Microsoft Visual Studio version! Only the versions between 2017 and 2022 (inclusive) are supported! (...snip...)

# ```

# 17.10 は _MSC_VER が 1940 になるため、このエラーが出る。

# VS のバージョンと _MSC_VER のリストは以下を参照:

# https://devblogs.microsoft.com/cppblog/msvc-toolset-minor-version-number-14-40-in-vs-2022-v17-10/

-allow-unsupported-compiler

-Xcompiler /utf-8

-Xcompiler /I ${CMAKE_CURRENT_SOURCE_DIR} /third_party/NvCodec/include

-Xcompiler /I ${CMAKE_CURRENT_SOURCE_DIR} /third_party/NvCodec/NvCodec

-Xcompiler /I ${CMAKE_CURRENT_SOURCE_DIR} /include

-Xcompiler "/MT$<$<CONFIG:Debug>:d>"

-Xcompiler /D_HAS_ITERATOR_DEBUGGING=0

-Xcompiler /DUSE_NVCODEC_ENCODER=1

)

target_sources (sora PRIVATE ${CUDA_FILES} )

target_include_directories (sora PRIVATE ${CUDA_INCLUDE_DIRS} )

# CUDA を要求したくないので sora.lib に含める

list ( APPEND BUNDLE_STATIC_LIBS ${CUDA_TOOLKIT_ROOT_DIR} /lib/x64/cudart_static.lib)

endif ()

if (USE_VPL_ENCODER)

find_package (VPL REQUIRED )

target_sources (sora

PRIVATE

src/hwenc_vpl/vpl_session_impl.cpp

src/hwenc_vpl/vpl_video_decoder.cpp

src/hwenc_vpl/vpl_video_encoder.cpp

)

target_link_libraries (sora PRIVATE "$<BUILD_INTERFACE:VPL::dispatcher>" )

# vpl を要求したくないので sora.lib に含める

list ( APPEND BUNDLE_STATIC_LIBS ${VPL_ROOT_DIR} /lib/vpl$<$< CONFIG :Debug>:d>.lib)

endif ()

elseif (SORA_TARGET_OS STREQUAL "macos" )

enable_language (OBJCXX)

target_sources (sora

PRIVATE

src/mac/mac_capturer.mm

src/mac/mac_version.mm

src/mac/mac_video_factory.mm

)

target_compile_options (sora PRIVATE -fconstant-string-class=NSConstantString)

target_link_options(sora PUBLIC -ObjC)

set_target_properties (sora PROPERTIES CXX_VISIBILITY_PRESET hidden)

target_compile_definitions (sora

PUBLIC

WEBRTC_POSIX

WEBRTC_MAC

)

target_link_libraries (sora

PUBLIC

# "-framework Foundation"

"-framework AVFoundation"

# "-framework CoreServices"

# "-framework CoreFoundation"

# "-framework AudioUnit"

"-framework AudioToolbox"

"-framework CoreAudio"

"-framework QuartzCore"

# "-framework CoreGraphics"

"-framework CoreMedia"

# "-framework CoreVideo"

"-framework VideoToolbox"

"-framework AppKit"

"-framework Metal"

"-framework MetalKit"

"-framework OpenGL"

"-framework IOSurface"

)

elseif (SORA_TARGET_OS STREQUAL "ios" )

enable_language (OBJCXX)

target_sources (sora

PRIVATE

src/mac/mac_audio_output_helper.mm

src/mac/mac_capturer.mm

src/mac/mac_version.mm

src/mac/mac_video_factory.mm

)

target_compile_options (sora PRIVATE -fconstant-string-class=NSConstantString)

target_link_options(sora PUBLIC -ObjC)

set_target_properties (sora PROPERTIES CXX_VISIBILITY_PRESET hidden)

target_compile_definitions (sora

PUBLIC

WEBRTC_POSIX

WEBRTC_MAC

WEBRTC_IOS

OPENSSL_IS_BORINGSSL

)

elseif (SORA_TARGET_OS STREQUAL "android" )

target_sources (sora

PRIVATE

src/android/android_video_factory.cpp

src/android/android_capturer.cpp

)

target_compile_options (sora

PUBLIC

-fexperimental-relative-c++-abi-vtables

)

target_compile_definitions (sora

PUBLIC

WEBRTC_POSIX

WEBRTC_LINUX

WEBRTC_ANDROID

_LIBCPP_ABI_NAMESPACE=Cr

_LIBCPP_ABI_VERSION=2

_LIBCPP_DISABLE_AVAILABILITY

_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS

_LIBCXXABI_DISABLE_VISIBILITY_ANNOTATIONS

_LIBCPP_ENABLE_NODISCARD

_LIBCPP_HARDENING_MODE=_LIBCPP_HARDENING_MODE_EXTENSIVE

# https://github.com/boostorg/container_hash/issues/22 と同じ問題が clang-15 でも起きるので、これを手動で定義して回避する

BOOST_NO_CXX98_FUNCTION_BASE

)

elseif (SORA_TARGET_OS STREQUAL "ubuntu" )

target_sources (sora PRIVATE src/v4l2/v4l2_video_capturer.cpp)

target_compile_definitions (sora

PUBLIC

WEBRTC_POSIX

WEBRTC_LINUX

_LIBCPP_ABI_NAMESPACE=Cr

_LIBCPP_ABI_VERSION=2

_LIBCPP_DISABLE_AVAILABILITY

_LIBCPP_HARDENING_MODE=_LIBCPP_HARDENING_MODE_EXTENSIVE

# https://github.com/boostorg/container_hash/issues/22 と同じ問題が clang-15 でも起きるので、これを手動で定義して回避する

BOOST_NO_CXX98_FUNCTION_BASE

RTC_ENABLE_H265

)

set_target_properties (sora PROPERTIES POSITION_INDEPENDENT_CODE ON )

target_link_libraries (sora

PRIVATE

X11

# Xau

# Xdmcp

# Xtst

# xcb

# plds4

# Xext

# expat

# nss3

# nssutil3

# plc4

# nspr4

Threads::Threads

)

if (USE_NVCODEC_ENCODER)

target_sources (sora

PRIVATE

src/cuda_context_cuda.cpp

src/hwenc_nvcodec/nvcodec_video_encoder.cpp

src/hwenc_nvcodec/nvcodec_v4l2_capturer.cpp

src/hwenc_nvcodec/nvcodec_video_encoder_cuda.cpp

src/hwenc_nvcodec/nvcodec_decoder_cuda.cpp

src/hwenc_nvcodec/nvcodec_video_decoder.cpp

third_party/NvCodec/NvCodec/NvDecoder/NvDecoder.cpp

third_party/NvCodec/NvCodec/NvEncoder/NvEncoder.cpp

third_party/NvCodec/NvCodec/NvEncoder/NvEncoderCuda.cpp)

target_include_directories (sora

PRIVATE

third_party/NvCodec/include

third_party/NvCodec/NvCodec

/usr/local/cuda/include)

# これらのソースは CUDA としてコンパイルする

set_source_files_properties (

src/cuda_context_cuda.cpp

src/hwenc_nvcodec/nvcodec_video_encoder_cuda.cpp

src/hwenc_nvcodec/nvcodec_decoder_cuda.cpp

third_party/NvCodec/NvCodec/NvDecoder/NvDecoder.cpp

third_party/NvCodec/NvCodec/NvEncoder/NvEncoderCuda.cpp

PROPERTIES

COMPILE_OPTIONS "-xcuda;--cuda-gpu-arch=sm_35;-std=gnu++17"

)

# CUDA を要求したくないので libsora.a に含める

list ( APPEND BUNDLE_STATIC_LIBS /usr/local/cuda/lib64/libcudart_static.a)

endif ()

if (USE_VPL_ENCODER)

find_package (Libdrm REQUIRED )

find_package (Libva REQUIRED )

find_package (VPL REQUIRED )

target_include_directories (sora PRIVATE /usr/local/cuda/include)

target_sources (sora

PRIVATE

src/hwenc_vpl/vpl_session_impl.cpp

src/hwenc_vpl/vpl_video_decoder.cpp

src/hwenc_vpl/vpl_video_encoder.cpp

src/hwenc_vpl/vaapi_utils_drm.cpp

src/hwenc_vpl/vaapi_utils.cpp

)

target_link_libraries (sora PRIVATE "$<BUILD_INTERFACE:VPL::dispatcher>" )

# va と drm は依存に含める

target_link_libraries (sora PUBLIC Libdrm::drm Libva::va Libva::va_drm)

# vpl を要求したくないので libsora.a に含める

list ( APPEND BUNDLE_STATIC_LIBS $< TARGET_FILE :VPL::dispatcher>)

endif ()

# 静的ライブラリを sora.lib に含める

if (BUNDLE_STATIC_LIBS)

bundle_static_library(sora " ${BUNDLE_STATIC_LIBS} " bundled_sora)

add_library (Sora::sora ALIAS bundled_sora)

else ()

add_library (Sora::sora ALIAS sora)

endif ()

include (GNUInstallDirs)

install ( TARGETS sora

EXPORT sora-config

FILE_SET HEADERS

# Android の場合はライブラリを ANDROID_ABI 以下のディレクトリにインストールする

LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} /$<$< STREQUAL : ${SORA_TARGET} , "android" >:/ ${ANDROID_ABI} >

)

install ( EXPORT sora-config

DESTINATION ${CMAKE_INSTALL_DATADIR} /sora

NAMESPACE Sora::

)

install (

FILES

cmake/FindWebRTC.cmake

cmake/FindLibdrm.cmake

cmake/FindLibva.cmake

DESTINATION ${CMAKE_INSTALL_DATADIR} /cmake

)

install ( FILES LICENSE NOTICE.md

DESTINATION ${CMAKE_INSTALL_PREFIX}

)

if (SORA_TARGET STREQUAL "android" )

install ( FILES ${SORA_WEBRTC_LDFLAGS}

DESTINATION ${CMAKE_INSTALL_DATADIR}

)

endif ()

CMakeLists.txt

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CMakeLists.txt

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