| set(AVIF_LOCAL_AOM_GIT_TAG v3.9.1) |
| set(AVIF_LOCAL_AVM_GIT_TAG research-v7.0.1) |
| |
| if(AVIF_CODEC_AVM) |
| # Building the avm repository generates files such as "libaom.a" because it is a fork of aom, |
| # so its build can be treated the same as aom |
| set(AOM_PACKAGE_NAME avm) |
| set(AOM_MESSAGE_PREFIX "libavif(AVIF_CODEC_AVM=LOCAL)") |
| else() |
| set(AOM_PACKAGE_NAME aom) |
| set(AOM_MESSAGE_PREFIX "libavif(AVIF_CODEC_AOM=LOCAL)") |
| endif() |
| |
| set(AOM_EXT_SOURCE_DIR "${AVIF_SOURCE_DIR}/ext/${AOM_PACKAGE_NAME}") |
| set(LIB_FILENAME "${AOM_EXT_SOURCE_DIR}/build.libavif/${CMAKE_STATIC_LIBRARY_PREFIX}aom${CMAKE_STATIC_LIBRARY_SUFFIX}") |
| |
| if(EXISTS "${LIB_FILENAME}") |
| message(STATUS "${AOM_MESSAGE_PREFIX}: compiled library found at ${LIB_FILENAME}") |
| add_library(aom STATIC IMPORTED GLOBAL) |
| set_target_properties(aom PROPERTIES IMPORTED_LOCATION "${LIB_FILENAME}" AVIF_LOCAL ON) |
| target_include_directories(aom INTERFACE "${AOM_EXT_SOURCE_DIR}") |
| if(AVIF_CODEC_AVM) |
| # ext/avm/aom/aom_encoder.h includes config/aom_config.h which is generated by the local build of avm. |
| target_include_directories(aom INTERFACE "${AOM_EXT_SOURCE_DIR}/build.libavif") |
| endif() |
| |
| # Add link dependency flags from the aom.pc file in ext/aom or ext/avm |
| # by prepending the build directory to PKG_CONFIG_PATH and then calling |
| # pkg_check_modules |
| if(WIN32) |
| set(ENV{PKG_CONFIG_PATH} "${AOM_EXT_SOURCE_DIR}/build.libavif;$ENV{PKG_CONFIG_PATH}") |
| else() |
| set(ENV{PKG_CONFIG_PATH} "${AOM_EXT_SOURCE_DIR}/build.libavif:$ENV{PKG_CONFIG_PATH}") |
| endif() |
| |
| pkg_check_modules(_AOM QUIET aom) |
| |
| set(_AOM_PC_LIBRARIES "${_AOM_STATIC_LIBRARIES}") |
| # remove "aom" so we only have library dependencies |
| list(REMOVE_ITEM _AOM_PC_LIBRARIES "aom") |
| # Work around crbug.com/aomedia/356153293: aom.pc has -lm in the |
| # Libs.private field on all platforms, whether libm or m.lib exists or not. |
| if(WIN32 OR APPLE) |
| list(REMOVE_ITEM _AOM_PC_LIBRARIES "m") |
| endif() |
| |
| # Add absolute paths to libraries |
| foreach(_lib ${_AOM_PC_LIBRARIES}) |
| find_library(_aom_dep_lib_${_lib} ${_lib} HINTS ${_AOM_STATIC_LIBRARY_DIRS}) |
| target_link_libraries(aom INTERFACE ${_aom_dep_lib_${_lib}}) |
| endforeach() |
| else() |
| message(STATUS "${AOM_MESSAGE_PREFIX}: compiled library not found at ${LIB_FILENAME}, using FetchContent") |
| if(EXISTS "${AOM_EXT_SOURCE_DIR}") |
| message(STATUS "${AOM_MESSAGE_PREFIX}: ext/${AOM_PACKAGE_NAME} found; using as FetchContent SOURCE_DIR") |
| set(FETCHCONTENT_SOURCE_DIR_AOM "${AOM_EXT_SOURCE_DIR}") |
| message(CHECK_START "${AOM_MESSAGE_PREFIX}: configuring ${AOM_PACKAGE_NAME}") |
| else() |
| message(CHECK_START "${AOM_MESSAGE_PREFIX}: fetching and configuring ${AOM_PACKAGE_NAME}") |
| endif() |
| |
| # aom sets its compile options by setting variables like CMAKE_C_FLAGS_RELEASE using |
| # CACHE FORCE, which effectively adds those flags to all targets. We stash and restore |
| # the original values and call avif_set_aom_compile_options to instead set the flags on all aom |
| # targets |
| function(avif_set_aom_compile_options target config) |
| string(REPLACE " " ";" AOM_C_FLAGS_LIST "${CMAKE_C_FLAGS_${config}}") |
| string(REPLACE " " ";" AOM_CXX_FLAGS_LIST "${CMAKE_CXX_FLAGS_${config}}") |
| foreach(flag ${AOM_C_FLAGS_LIST}) |
| target_compile_options(${target} PRIVATE $<$<COMPILE_LANGUAGE:C>:${flag}>) |
| endforeach() |
| foreach(flag ${AOM_CXX_FLAGS_LIST}) |
| target_compile_options(${target} PRIVATE $<$<COMPILE_LANGUAGE:CXX>:${flag}>) |
| endforeach() |
| |
| get_target_property(sources ${target} SOURCES) |
| foreach(src ${sources}) |
| if(src MATCHES "TARGET_OBJECTS:") |
| string(REGEX REPLACE "\\$<TARGET_OBJECTS:(.*)>" "\\1" source_target ${src}) |
| avif_set_aom_compile_options(${source_target} ${config}) |
| endif() |
| endforeach() |
| endfunction() |
| |
| set(AOM_BINARY_DIR "${FETCHCONTENT_BASE_DIR}/${AOM_PACKAGE_NAME}-build") |
| |
| if(ANDROID_ABI) |
| set(AOM_BINARY_DIR "${AOM_BINARY_DIR}/${ANDROID_ABI}") |
| endif() |
| |
| if(AVIF_CODEC_AVM) |
| FetchContent_Declare( |
| libaom |
| GIT_REPOSITORY "https://gitlab.com/AOMediaCodec/avm.git" |
| BINARY_DIR "${AOM_BINARY_DIR}" |
| GIT_TAG ${AVIF_LOCAL_AVM_GIT_TAG} |
| GIT_PROGRESS ON |
| GIT_SHALLOW ON |
| UPDATE_COMMAND "" |
| ) |
| else() |
| FetchContent_Declare( |
| libaom URL "https://aomedia.googlesource.com/aom/+archive/${AVIF_LOCAL_AOM_GIT_TAG}.tar.gz" BINARY_DIR |
| "${AOM_BINARY_DIR}" UPDATE_COMMAND "" |
| ) |
| endif() |
| |
| set(CONFIG_PIC 1 CACHE INTERNAL "") |
| if(libyuv_FOUND) |
| set(CONFIG_LIBYUV 0 CACHE INTERNAL "") |
| else() |
| set(CONFIG_LIBYUV 1 CACHE INTERNAL "") |
| endif() |
| set(CONFIG_WEBM_IO 0 CACHE INTERNAL "") |
| set(ENABLE_DOCS 0 CACHE INTERNAL "") |
| set(ENABLE_EXAMPLES 0 CACHE INTERNAL "") |
| set(ENABLE_TESTDATA 0 CACHE INTERNAL "") |
| set(ENABLE_TESTS 0 CACHE INTERNAL "") |
| set(ENABLE_TOOLS 0 CACHE INTERNAL "") |
| if(CMAKE_OSX_ARCHITECTURES STREQUAL "arm64") |
| set(AOM_TARGET_CPU "arm64") |
| endif() |
| |
| if(NOT libaom_POPULATED) |
| # Guard against the project setting cmake variables that would affect the parent build |
| # See comment above for avif_set_aom_compile_options |
| foreach(_config_setting CMAKE_C_FLAGS CMAKE_CXX_FLAGS CMAKE_EXE_LINKER_FLAGS) |
| foreach(_config_type DEBUG RELEASE MINSIZEREL RELWITHDEBINFO) |
| set(${_config_setting}_${_config_type}_ORIG ${${_config_setting}_${_config_type}}) |
| endforeach() |
| endforeach() |
| |
| avif_fetchcontent_populate_cmake(libaom) |
| |
| set(_aom_config RELEASE) |
| if(CMAKE_BUILD_TYPE) |
| string(TOUPPER ${CMAKE_BUILD_TYPE} _aom_config) |
| endif() |
| list(LENGTH CMAKE_CONFIGURATION_TYPES num_configs) |
| if(${num_configs} GREATER 0) |
| list(GET CMAKE_CONFIGURATION_TYPES 0 _aom_config_type) |
| string(TOUPPER ${_aom_config_type} _aom_config) |
| endif() |
| avif_set_aom_compile_options(aom ${_aom_config}) |
| |
| foreach(_config_setting CMAKE_C_FLAGS CMAKE_CXX_FLAGS CMAKE_EXE_LINKER_FLAGS) |
| foreach(_config_type DEBUG RELEASE MINSIZEREL RELWITHDEBINFO) |
| set(${_config_setting}_${_config_type} ${${_config_setting}_${_config_type}_ORIG} CACHE STRING "" FORCE) |
| unset(${_config_setting}_${_config_type}_ORIG) |
| endforeach() |
| endforeach() |
| unset(_config_type) |
| unset(_config_setting) |
| endif() |
| |
| # If we have libyuv, we disable CONFIG_LIBYUV so that aom does not include the libyuv |
| # sources from its third-party vendor library. But we still want AOM to have libyuv, only |
| # linked against this project's target. Here we update the value in aom_config.h and add libyuv |
| # to AOM's link libraries |
| if(libyuv_FOUND) |
| file(READ ${AOM_BINARY_DIR}/config/aom_config.h AOM_CONFIG_H) |
| if("${AOM_CONFIG_H}" MATCHES "CONFIG_LIBYUV 0") |
| string(REPLACE "CONFIG_LIBYUV 0" "CONFIG_LIBYUV 1" AOM_CONFIG_H "${AOM_CONFIG_H}") |
| file(WRITE ${AOM_BINARY_DIR}/config/aom_config.h "${AOM_CONFIG_H}") |
| endif() |
| target_link_libraries(aom PRIVATE $<TARGET_FILE:yuv::yuv>) |
| endif() |
| |
| set_property(TARGET aom PROPERTY AVIF_LOCAL ON) |
| target_include_directories(aom INTERFACE "${libaom_SOURCE_DIR}" ${AOM_BINARY_DIR}) |
| |
| message(CHECK_PASS "complete") |
| endif() |
