cmake_minimum_required(VERSION 2.8.12) cmake_policy(SET CMP0077 NEW) project(bell) # Configurable options option(BELL_DISABLE_CODECS "Disable the entire audio codec wrapper" OFF) option(BELL_CODEC_AAC "Support libhelix-aac codec" ON) option(BELL_CODEC_MP3 "Support libhelix-mp3 codec" ON) option(BELL_CODEC_VORBIS "Support tremor Vorbis codec" ON) option(BELL_CODEC_ALAC "Support Apple ALAC codec" ON) option(BELL_CODEC_OPUS "Support Opus codec" ON) option(BELL_DISABLE_SINKS "Disable all built-in audio sink implementations" OFF) # These are default OFF, as they're OS-dependent (ESP32 sinks are always enabled - no external deps) option(BELL_SINK_ALSA "Enable ALSA audio sink" OFF) option(BELL_SINK_PORTAUDIO "Enable PortAudio sink" OFF) # cJSON wrapper option(BELL_DISABLE_CJSON "Disable cJSON and JSONObject completely" OFF) set(BELL_EXTERNAL_CJSON "" CACHE STRING "External cJSON library target name, optional") if(BELL_EXTERNAL_MBEDTLS) set(MbedTLS_DIR ${BELL_EXTERNAL_MBEDTLS}) message(STATUS "Setting local mbedtls ${MbedTLS_DIR}") endif() # Backwards compatibility with deprecated options if(BELL_USE_ALSA) message(WARNING "Deprecated Bell options used, replace BELL_USE_ALSA with BELL_SINK_ALSA") set(BELL_SINK_ALSA ${BELL_USE_ALSA}) endif() if(BELL_USE_PORTAUDIO) message(WARNING "Deprecated Bell options used, replace BELL_USE_PORTAUDIO with BELL_SINK_PORTAUDIO") set(BELL_SINK_PORTAUDIO ${BELL_USE_PORTAUDIO}) endif() message(STATUS "Bell options:") message(STATUS " Disable all codecs: ${BELL_DISABLE_CODECS}") if(NOT BELL_DISABLE_CODECS) message(STATUS " - AAC audio codec: ${BELL_CODEC_AAC}") message(STATUS " - MP3 audio codec: ${BELL_CODEC_MP3}") message(STATUS " - Vorbis audio codec: ${BELL_CODEC_VORBIS}") message(STATUS " - Opus audio codec: ${BELL_CODEC_OPUS}") message(STATUS " - ALAC audio codec: ${BELL_CODEC_ALAC}") endif() message(STATUS " Disable built-in audio sinks: ${BELL_DISABLE_SINKS}") if(NOT BELL_DISABLE_SINKS) message(STATUS " - ALSA sink: ${BELL_SINK_ALSA}") message(STATUS " - PortAudio sink: ${BELL_SINK_PORTAUDIO}") endif() message(STATUS " Disable cJSON and JSONObject: ${BELL_DISABLE_CJSON}") # Include nanoPB library set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_CURRENT_SOURCE_DIR}/nanopb/extra") find_package(Nanopb REQUIRED) list(APPEND EXTRA_INCLUDES ${NANOPB_INCLUDE_DIRS}) # CMake options set(CMAKE_CXX_STANDARD 20) set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake") set(AUDIO_DIR "${CMAKE_CURRENT_SOURCE_DIR}/src/audio") add_definitions("-DUSE_DEFAULT_STDLIB=1") # Main library sources file(GLOB SOURCES "src/*.cpp" "src/*.c" "nanopb/*.c") list(APPEND EXTRA_INCLUDES "include/platform") list(APPEND EXTRA_INCLUDES "include/audio/container") # Add platform specific sources if(ESP_PLATFORM) file(GLOB ESP_PLATFORM_SOURCES "src/platform/esp/*.cpp" "src/platform/esp/*.c" "src/asm/biquad_f32_ae32.S") list(APPEND SOURCES ${ESP_PLATFORM_SOURCES}) endif() if(UNIX) file(GLOB UNIX_PLATFORM_SOURCES "src/platform/unix/*.cpp" "src/platform/unix/*.c") list(APPEND SOURCES ${UNIX_PLATFORM_SOURCES}) endif() if(APPLE) file(GLOB APPLE_PLATFORM_SOURCES "src/platform/apple/*.cpp" "src/platform/apple/*.c") list(APPEND SOURCES ${APPLE_PLATFORM_SOURCES}) list(APPEND EXTRA_INCLUDES "/usr/local/opt/mbedtls@3/include") endif() if(UNIX AND NOT APPLE) file(GLOB LINUX_PLATFORM_SOURCES "src/platform/linux/*.cpp" "src/platform/linux/*.c") list(APPEND SOURCES ${LINUX_PLATFORM_SOURCES}) endif() if(WIN32) file(GLOB WIN32_PLATFORM_SOURCES "src/platform/win32/*.cpp" "src/platform/win32/*.c") list(APPEND SOURCES ${WIN32_PLATFORM_SOURCES}) list(APPEND EXTRA_INCLUDES "include/platform/win32") endif() # A hack to make Opus keep quiet function(message) if(NOT MESSAGE_QUIET) _message(${ARGN}) endif() endfunction() if(ESP_PLATFORM) list(APPEND EXTRA_LIBS idf::mbedtls idf::pthread idf::mdns) add_definitions(-Wunused-const-variable -Wchar-subscripts -Wunused-label -Wmaybe-uninitialized -Wmisleading-indentation) else() find_package(Threads REQUIRED) set(THREADS_PREFER_PTHREAD_FLAG ON) list(APPEND EXTRA_LIBS Threads::Threads) find_package(MbedTLS REQUIRED) get_target_property(MBEDTLS_INFO MbedTLS::mbedtls INTERFACE_INCLUDE_DIRECTORIES) list(APPEND EXTRA_INCLUDES ${MBEDTLS_INFO}) # try to handle mbedtls when not system-wide installed if(BELL_EXTERNAL_MBEDTLS) if(MSVC) set(MBEDTLS_RELEASE "RELEASE" CACHE STRING "local mbedtls version") else() set(MBEDTLS_RELEASE "NOCONFIG" CACHE STRING "local mbedtls version") endif() message(STATUS "using local mbedtls version ${MBEDTLS_RELEASE}") get_target_property(MBEDTLS_INFO MbedTLS::mbedtls IMPORTED_LOCATION_${MBEDTLS_RELEASE}) list(APPEND EXTRA_LIBS ${MBEDTLS_INFO}) get_target_property(MBEDTLS_INFO MbedTLS::mbedx509 IMPORTED_LOCATION_${MBEDTLS_RELEASE}) list(APPEND EXTRA_LIBS ${MBEDTLS_INFO}) get_target_property(MBEDTLS_INFO MbedTLS::mbedcrypto IMPORTED_LOCATION_${MBEDTLS_RELEASE}) list(APPEND EXTRA_LIBS ${MBEDTLS_INFO}) else() list(APPEND EXTRA_LIBS mbedtls mbedcrypto mbedx509) endif() if(MSVC) add_compile_definitions(NOMINMAX _CRT_SECURE_NO_WARNINGS) add_definitions(/wd4068 /wd4244 /wd4018 /wd4101 /wd4102 /wd4142) endif() endif() if(NOT BELL_DISABLE_CODECS) file(GLOB EXTRA_SOURCES "src/audio/container/*.cpp") list(APPEND SOURCES "${EXTRA_SOURCES}") list(APPEND SOURCES "${AUDIO_DIR}/codec/DecoderGlobals.cpp") list(APPEND SOURCES "${AUDIO_DIR}/codec/BaseCodec.cpp") list(APPEND SOURCES "${AUDIO_DIR}/codec/AudioCodecs.cpp") list(APPEND EXTRA_INCLUDES "include/audio/codec") # AAC-LC codec if(BELL_CODEC_AAC) file(GLOB LIBHELIX_AAC_SOURCES "libhelix-aac/*.c") list(APPEND LIBHELIX_SOURCES ${LIBHELIX_AAC_SOURCES}) list(APPEND EXTRA_INCLUDES "libhelix-aac") list(APPEND SOURCES "${AUDIO_DIR}/codec/AACDecoder.cpp") list(APPEND CODEC_FLAGS "-DBELL_CODEC_AAC") endif() # MP3 codec if(BELL_CODEC_MP3) file(GLOB LIBHELIX_MP3_SOURCES "libhelix-mp3/*.c") list(APPEND LIBHELIX_SOURCES ${LIBHELIX_MP3_SOURCES}) list(APPEND EXTRA_INCLUDES "libhelix-mp3") list(APPEND SOURCES "${AUDIO_DIR}/codec/MP3Decoder.cpp") list(APPEND CODEC_FLAGS "-DBELL_CODEC_MP3") endif() # MP3 codec if(BELL_CODEC_ALAC) file(GLOB ALAC_SOURCES "alac/*.c" "alac/*.cpp") list(APPEND ALAC_SOURCES ${ALAC_SOURCES}) list(APPEND EXTRA_INCLUDES "alac") # list(APPEND SOURCES "${AUDIO_DIR}/codec/ALACDecoder.cpp") list(APPEND CODEC_FLAGS "-DBELL_CODEC_ALAC") endif() # libhelix Cygwin workaround if(CYGWIN) # Both Cygwin and ESP are Unix-like so this seems to work (or, at least, compile) set_source_files_properties("${AUDIO_DIR}/codec/DecoderGlobals.cpp" ${LIBHELIX_SOURCES} PROPERTIES COMPILE_FLAGS "-DESP_PLATFORM") endif() list(APPEND SOURCES ${LIBHELIX_SOURCES}) list(APPEND SOURCES ${ALAC_SOURCES}) # Vorbis codec if(BELL_CODEC_VORBIS) file(GLOB TREMOR_SOURCES "tremor/*.c") list(REMOVE_ITEM TREMOR_SOURCES "${CMAKE_CURRENT_SOURCE_DIR}/tremor/ivorbisfile_example.c") list(APPEND SOURCES ${TREMOR_SOURCES}) list(APPEND EXTRA_INCLUDES "tremor") list(APPEND SOURCES "${AUDIO_DIR}/codec/VorbisDecoder.cpp") list(APPEND CODEC_FLAGS "-DBELL_CODEC_VORBIS") endif() # Opus codec if(BELL_CODEC_OPUS) set(OPUS_INSTALL_CMAKE_CONFIG_MODULE OFF CACHE BOOL "") set(OPUS_INSTALL_CMAKE_CONFIG_MODULE OFF) set(OPUS_INSTALL_PKG_CONFIG_MODULE OFF CACHE BOOL "") set(OPUS_INSTALL_PKG_CONFIG_MODULE OFF) set(MESSAGE_QUIET ON) add_subdirectory("opus") unset(MESSAGE_QUIET) target_compile_options(opus PRIVATE "-O3") list(APPEND EXTRA_LIBS Opus::opus) list(APPEND SOURCES "${AUDIO_DIR}/codec/OPUSDecoder.cpp") list(APPEND CODEC_FLAGS -DBELL_CODEC_OPUS) endif() # Enable global codecs string(REPLACE ";" " " CODEC_FLAGS "${CODEC_FLAGS}") set_source_files_properties("${AUDIO_DIR}/codec/AudioCodecs.cpp" PROPERTIES COMPILE_FLAGS "${CODEC_FLAGS}") elseif(BELL_EXTERNAL_TREMOR) list(APPEND EXTRA_LIBS ${BELL_EXTERNAL_TREMOR}) endif() if(NOT BELL_DISABLE_SINKS) set(PLATFORM "unix") if(ESP_PLATFORM) set(PLATFORM "esp") endif() # Add all built-in audio sinks file(GLOB SINK_SOURCES "${AUDIO_DIR}/sinks/${PLATFORM}/*.cpp" "${AUDIO_DIR}/sinks/${PLATFORM}/*.c") list(APPEND EXTRA_INCLUDES "include/audio/sinks/${PLATFORM}") # Find ALSA if required, else remove the sink if(BELL_SINK_ALSA) find_package(ALSA REQUIRED) list(APPEND EXTRA_INCLUDES ${ALSA_INCLUDE_DIRS}) list(APPEND EXTRA_LIBS ${ALSA_LIBRARIES}) else() list(REMOVE_ITEM SINK_SOURCES "${AUDIO_DIR}/sinks/unix/ALSAAudioSink.cpp") endif() # Find PortAudio if required, else remove the sink if(BELL_SINK_PORTAUDIO) if(WIN32) list(APPEND EXTRA_INCLUDES "portaudio/include") if(NOT "${CMAKE_GENERATOR}" MATCHES "(Win64|IA64)") list(APPEND EXTRA_LIBS "${CMAKE_CURRENT_SOURCE_DIR}/portaudio/portaudio_win32.lib") else() list(APPEND EXTRA_LIBS "${CMAKE_CURRENT_SOURCE_DIR}/portaudio/portaudio_x64.lib") endif() else() find_package(portaudio REQUIRED) list(APPEND EXTRA_INCLUDES ${PORTAUDIO_INCLUDE_DIRS}) list(APPEND EXTRA_LIBS ${PORTAUDIO_LIBRARIES}) endif() else() list(REMOVE_ITEM SINK_SOURCES "${AUDIO_DIR}/sinks/unix/PortAudioSink.cpp") endif() list(APPEND SOURCES ${SINK_SOURCES}) endif() if(BELL_DISABLE_CJSON) list(REMOVE_ITEM SOURCES "${CMAKE_CURRENT_SOURCE_DIR}/src/JSONObject.cpp") else() if(BELL_EXTERNAL_CJSON) list(APPEND EXTRA_LIBS ${BELL_EXTERNAL_CJSON}) else() list(APPEND SOURCES "cJSON/cJSON.c") list(APPEND EXTRA_INCLUDES "cJSON") endif() endif() add_library(bell STATIC ${SOURCES}) # PUBLIC to propagate esp-idf includes to bell dependents target_link_libraries(bell PUBLIC ${EXTRA_LIBS}) target_include_directories(bell PUBLIC "include" ${EXTRA_INCLUDES} ${CMAKE_CURRENT_BINARY_DIR}) target_compile_definitions(bell PUBLIC PB_ENABLE_MALLOC) if(WIN32) target_compile_definitions(bell PUBLIC PB_NO_STATIC_ASSERT) endif()