Initial commit

added libraries:
opus
flac
libsndfile

updated:
libvorbis
libogg
openal

- Everything works as expected for now. Bare in mind libsndfile needed the check for whether or not it could find the xiph libraries removed in order for this to work.

Engine/lib/opus/cmake/CFeatureCheck.cmake

@@ -0,0 +1,39 @@
+# - Compile and run code to check for C features
+#
+# This functions compiles a source file under the `cmake` folder
+# and adds the corresponding `HAVE_[FILENAME]` flag to the CMake
+# environment
+#
+#  c_feature_check(<FLAG> [<VARIANT>])
+#
+# - Example
+#
+# include(CFeatureCheck)
+# c_feature_check(VLA)
+
+if(__c_feature_check)
+  return()
+endif()
+set(__c_feature_check INCLUDED)
+
+function(c_feature_check FILE)
+  string(TOLOWER ${FILE} FILE)
+  string(TOUPPER ${FILE} VAR)
+  string(TOUPPER "${VAR}_SUPPORTED" FEATURE)
+  if (DEFINED ${VAR}_SUPPORTED)
+    set(${VAR}_SUPPORTED 1 PARENT_SCOPE)
+    return()
+  endif()
+
+  if (NOT DEFINED COMPILE_${FEATURE})
+      message(STATUS "Performing Test ${FEATURE}")
+      try_compile(COMPILE_${FEATURE} ${PROJECT_BINARY_DIR} ${PROJECT_SOURCE_DIR}/cmake/${FILE}.c)
+  endif()
+
+  if(COMPILE_${FEATURE})
+    message(STATUS "Performing Test ${FEATURE} -- success")
+    set(${VAR}_SUPPORTED 1 PARENT_SCOPE)
+  else()
+    message(STATUS "Performing Test ${FEATURE} -- failed to compile")
+  endif()
+endfunction()

Engine/lib/opus/cmake/OpusBuildtype.cmake

@@ -0,0 +1,27 @@
+# Set a default build type if none was specified
+if(__opus_buildtype)
+  return()
+endif()
+set(__opus_buildtype INCLUDED)
+
+if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
+  if(CMAKE_C_FLAGS)
+    message(STATUS "CMAKE_C_FLAGS: " ${CMAKE_C_FLAGS})
+  else()
+    set(default_build_type "Release")
+    message(
+      STATUS
+        "Setting build type to '${default_build_type}' as none was specified and no CFLAGS was exported."
+      )
+    set(CMAKE_BUILD_TYPE "${default_build_type}"
+        CACHE STRING "Choose the type of build."
+        FORCE)
+    # Set the possible values of build type for cmake-gui
+    set_property(CACHE CMAKE_BUILD_TYPE
+                 PROPERTY STRINGS
+                          "Debug"
+                          "Release"
+                          "MinSizeRel"
+                          "RelWithDebInfo")
+  endif()
+endif()

Engine/lib/opus/cmake/OpusConfig.cmake

@@ -0,0 +1,115 @@
+if(__opus_config)
+  return()
+endif()
+set(__opus_config INCLUDED)
+
+include(OpusFunctions)
+
+configure_file(cmake/config.h.cmake.in config.h @ONLY)
+add_definitions(-DHAVE_CONFIG_H)
+
+set_property(GLOBAL PROPERTY USE_FOLDERS ON)
+
+if(MSVC)
+  # For compilers that have no notion of a C standard level,
+  # such as Microsoft Visual C++ before VS 16.7,
+  # this property has no effect.
+  set(CMAKE_C_STANDARD 11)
+else()
+  set(CMAKE_C_STANDARD 99)
+endif()
+
+if(MSVC)
+  add_definitions(-D_CRT_SECURE_NO_WARNINGS)
+endif()
+
+include(CFeatureCheck)
+c_feature_check(VLA)
+
+include(CheckIncludeFile)
+check_include_file(alloca.h HAVE_ALLOCA_H)
+
+include(CheckSymbolExists)
+if(HAVE_ALLOCA_H)
+  add_definitions(-DHAVE_ALLOCA_H)
+  check_symbol_exists(alloca "alloca.h" USE_ALLOCA_SUPPORTED)
+else()
+  check_symbol_exists(alloca "stdlib.h;malloc.h" USE_ALLOCA_SUPPORTED)
+endif()
+
+include(CMakePushCheckState)
+cmake_push_check_state(RESET)
+include(CheckLibraryExists)
+check_library_exists(m floor "" HAVE_LIBM)
+if(HAVE_LIBM)
+  list(APPEND OPUS_REQUIRED_LIBRARIES m)
+  set(CMAKE_REQUIRED_LIBRARIES m)
+endif()
+
+check_symbol_exists(lrintf "math.h" HAVE_LRINTF)
+check_symbol_exists(lrint "math.h" HAVE_LRINT)
+cmake_pop_check_state()
+
+if(CMAKE_SYSTEM_PROCESSOR MATCHES "(i[0-9]86|x86|X86|amd64|AMD64|x86_64)")
+  if(CMAKE_SIZEOF_VOID_P EQUAL 8)
+    set(OPUS_CPU_X64 1)
+  else()
+    set(OPUS_CPU_X86 1)
+  endif()
+elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "(arm|aarch64)")
+  set(OPUS_CPU_ARM 1)
+endif()
+
+if(NOT OPUS_DISABLE_INTRINSICS)
+  opus_supports_cpu_detection(RUNTIME_CPU_CAPABILITY_DETECTION)
+endif()
+
+if(OPUS_CPU_X86 OR OPUS_CPU_X64 AND NOT OPUS_DISABLE_INTRINSICS)
+  opus_detect_sse(COMPILER_SUPPORT_SIMD)
+elseif(OPUS_CPU_ARM AND NOT OPUS_DISABLE_INTRINSICS)
+  opus_detect_neon(COMPILER_SUPPORT_NEON)
+  if(COMPILER_SUPPORT_NEON)
+    option(OPUS_USE_NEON "Option to enable NEON" ON)
+    option(OPUS_MAY_HAVE_NEON "Does runtime check for neon support" ON)
+    option(OPUS_PRESUME_NEON "Assume target CPU has NEON support" OFF)
+    if(CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64")
+      set(OPUS_PRESUME_NEON ON)
+    elseif(CMAKE_SYSTEM_NAME MATCHES "iOS")
+      set(OPUS_PRESUME_NEON ON)
+    endif()
+  endif()
+endif()
+
+if(MSVC)
+  check_flag(FAST_MATH /fp:fast)
+  check_flag(STACK_PROTECTOR /GS)
+  check_flag(STACK_PROTECTOR_DISABLED /GS-)
+else()
+  check_flag(FAST_MATH -ffast-math)
+  check_flag(STACK_PROTECTOR -fstack-protector-strong)
+  check_flag(HIDDEN_VISIBILITY -fvisibility=hidden)
+  set(FORTIFY_SOURCE_SUPPORTED 1)
+endif()
+
+if(MINGW)
+  # For MINGW we need to link ssp lib for security features such as
+  # stack protector and fortify_sources
+  check_library_exists(ssp __stack_chk_fail "" HAVE_LIBSSP)
+  if(NOT HAVE_LIBSSP)
+    message(WARNING "Could not find libssp in MinGW, disabling STACK_PROTECTOR and FORTIFY_SOURCE")
+    set(STACK_PROTECTOR_SUPPORTED 0)
+    set(FORTIFY_SOURCE_SUPPORTED 0)
+  endif()
+endif()
+
+if(NOT MSVC)
+  set(WARNING_LIST -Wall -W -Wstrict-prototypes -Wextra -Wcast-align -Wnested-externs -Wshadow)
+  include(CheckCCompilerFlag)
+  foreach(WARNING_FLAG ${WARNING_LIST})
+    string(REPLACE - "" WARNING_VAR ${WARNING_FLAG})
+    check_c_compiler_flag(${WARNING_FLAG} ${WARNING_VAR}_SUPPORTED)
+    if(${WARNING_VAR}_SUPPORTED)
+      add_compile_options(${WARNING_FLAG})
+    endif()
+  endforeach()
+endif()

Engine/lib/opus/cmake/OpusConfig.cmake.in

@@ -0,0 +1,20 @@
+set(OPUS_VERSION @PROJECT_VERSION@)
+set(OPUS_VERSION_STRING @PROJECT_VERSION@)
+set(OPUS_VERSION_MAJOR @PROJECT_VERSION_MAJOR@)
+set(OPUS_VERSION_MINOR @PROJECT_VERSION_MINOR@)
+set(OPUS_VERSION_PATCH @PROJECT_VERSION_PATCH@)
+
+@PACKAGE_INIT@
+
+set_and_check(OPUS_INCLUDE_DIR "@PACKAGE_INCLUDE_INSTALL_DIR@")
+set(OPUS_INCLUDE_DIR ${OPUS_INCLUDE_DIR};${OPUS_INCLUDE_DIR}/opus)
+set(OPUS_INCLUDE_DIRS "@PACKAGE_INCLUDE_INSTALL_DIR@;@PACKAGE_INCLUDE_INSTALL_DIR@/opus")
+
+include(${CMAKE_CURRENT_LIST_DIR}/OpusTargets.cmake)
+
+set(OPUS_LIBRARY Opus::opus)
+set(OPUS_LIBRARIES Opus::opus)
+
+check_required_components(Opus)
+
+set(OPUS_FOUND 1)

Engine/lib/opus/cmake/OpusFunctions.cmake

@@ -0,0 +1,229 @@
+if(__opus_functions)
+  return()
+endif()
+set(__opus_functions INCLUDED)
+
+function(get_library_version OPUS_LIBRARY_VERSION OPUS_LIBRARY_VERSION_MAJOR)
+  file(STRINGS configure.ac opus_lt_current_string
+       LIMIT_COUNT 1
+       REGEX "OPUS_LT_CURRENT=")
+  string(REGEX MATCH
+               "OPUS_LT_CURRENT=([0-9]*)"
+               _
+               ${opus_lt_current_string})
+  set(OPUS_LT_CURRENT ${CMAKE_MATCH_1})
+
+  file(STRINGS configure.ac opus_lt_revision_string
+       LIMIT_COUNT 1
+       REGEX "OPUS_LT_REVISION=")
+  string(REGEX MATCH
+               "OPUS_LT_REVISION=([0-9]*)"
+               _
+               ${opus_lt_revision_string})
+  set(OPUS_LT_REVISION ${CMAKE_MATCH_1})
+
+  file(STRINGS configure.ac opus_lt_age_string
+       LIMIT_COUNT 1
+       REGEX "OPUS_LT_AGE=")
+  string(REGEX MATCH
+               "OPUS_LT_AGE=([0-9]*)"
+               _
+               ${opus_lt_age_string})
+  set(OPUS_LT_AGE ${CMAKE_MATCH_1})
+
+  math(EXPR OPUS_LIBRARY_VERSION_MAJOR "${OPUS_LT_CURRENT} - ${OPUS_LT_AGE}")
+  set(OPUS_LIBRARY_VERSION_MINOR ${OPUS_LT_AGE})
+  set(OPUS_LIBRARY_VERSION_PATCH ${OPUS_LT_REVISION})
+  set(
+    OPUS_LIBRARY_VERSION
+    "${OPUS_LIBRARY_VERSION_MAJOR}.${OPUS_LIBRARY_VERSION_MINOR}.${OPUS_LIBRARY_VERSION_PATCH}"
+    PARENT_SCOPE)
+  set(OPUS_LIBRARY_VERSION_MAJOR ${OPUS_LIBRARY_VERSION_MAJOR} PARENT_SCOPE)
+endfunction()
+
+function(check_flag NAME FLAG)
+  include(CheckCCompilerFlag)
+  check_c_compiler_flag(${FLAG} ${NAME}_SUPPORTED)
+endfunction()
+
+include(CheckIncludeFile)
+# function to check if compiler supports SSE, SSE2, SSE4.1 and AVX if target
+# systems may not have SSE support then use OPUS_MAY_HAVE_SSE option if target
+# system is guaranteed to have SSE support then OPUS_PRESUME_SSE can be used to
+# skip SSE runtime check
+function(opus_detect_sse COMPILER_SUPPORT_SIMD)
+  message(STATUS "Check SIMD support by compiler")
+  check_include_file(xmmintrin.h HAVE_XMMINTRIN_H) # SSE1
+  if(HAVE_XMMINTRIN_H)
+    if(MSVC)
+      # different arch options for 32 and 64 bit target for MSVC
+      if(CMAKE_SIZEOF_VOID_P EQUAL 4)
+        check_flag(SSE1 /arch:SSE)
+      else()
+        set(SSE1_SUPPORTED
+            1
+            PARENT_SCOPE)
+      endif()
+    else()
+      check_flag(SSE1 -msse)
+    endif()
+  else()
+    set(SSE1_SUPPORTED
+        0
+        PARENT_SCOPE)
+  endif()
+
+  check_include_file(emmintrin.h HAVE_EMMINTRIN_H) # SSE2
+  if(HAVE_EMMINTRIN_H)
+    if(MSVC)
+      if(CMAKE_SIZEOF_VOID_P EQUAL 4)
+        check_flag(SSE2 /arch:SSE2)
+      else()
+        set(SSE2_SUPPORTED
+            1
+            PARENT_SCOPE)
+      endif()
+    else()
+      check_flag(SSE2 -msse2)
+    endif()
+  else()
+    set(SSE2_SUPPORTED
+        0
+        PARENT_SCOPE)
+  endif()
+
+  check_include_file(smmintrin.h HAVE_SMMINTRIN_H) # SSE4.1
+  if(HAVE_SMMINTRIN_H)
+    if(MSVC)
+      if(CMAKE_SIZEOF_VOID_P EQUAL 4)
+        check_flag(SSE4_1 /arch:SSE2) # SSE2 and above
+      else()
+        set(SSE4_1_SUPPORTED
+            1
+            PARENT_SCOPE)
+      endif()
+    else()
+      check_flag(SSE4_1 -msse4.1)
+    endif()
+  else()
+    set(SSE4_1_SUPPORTED
+        0
+        PARENT_SCOPE)
+  endif()
+
+  check_include_file(immintrin.h HAVE_IMMINTRIN_H) # AVX
+  if(HAVE_IMMINTRIN_H)
+    if(MSVC)
+      check_flag(AVX /arch:AVX)
+    else()
+      check_flag(AVX -mavx)
+    endif()
+  else()
+    set(AVX_SUPPORTED
+        0
+        PARENT_SCOPE)
+  endif()
+
+  if(SSE1_SUPPORTED OR SSE2_SUPPORTED OR SSE4_1_SUPPORTED OR AVX_SUPPORTED)
+    set(COMPILER_SUPPORT_SIMD 1 PARENT_SCOPE)
+  else()
+    message(STATUS "No SIMD support in compiler")
+  endif()
+endfunction()
+
+function(opus_detect_neon COMPILER_SUPPORT_NEON)
+  if(CMAKE_SYSTEM_PROCESSOR MATCHES "(arm|aarch64)")
+    message(STATUS "Check NEON support by compiler")
+    check_include_file(arm_neon.h HAVE_ARM_NEON_H)
+    if(HAVE_ARM_NEON_H)
+      set(COMPILER_SUPPORT_NEON ${HAVE_ARM_NEON_H} PARENT_SCOPE)
+    endif()
+  endif()
+endfunction()
+
+function(opus_supports_cpu_detection RUNTIME_CPU_CAPABILITY_DETECTION)
+  set(RUNTIME_CPU_CAPABILITY_DETECTION 0 PARENT_SCOPE)
+  if(OPUS_CPU_X86 OR OPUS_CPU_X64)
+    if(MSVC)
+      check_include_file(intrin.h HAVE_INTRIN_H)
+      if(HAVE_INTRIN_H)
+        # if intrin.h is available we assume __cpuid is there
+        set(RUNTIME_CPU_CAPABILITY_DETECTION 1 PARENT_SCOPE)
+      endif()
+    else()
+      include(CFeatureCheck)
+      c_feature_check(CPU_INFO_BY_ASM)
+      set(CPU_INFO_BY_ASM_SUPPORTED ${CPU_INFO_BY_ASM_SUPPORTED} PARENT_SCOPE)
+      check_include_file(cpuid.h HAVE_CPUID_H)
+      if(HAVE_CPUID_H)
+        c_feature_check(CPU_INFO_BY_C)
+        set(CPU_INFO_BY_C_SUPPORTED ${CPU_INFO_BY_C_SUPPORTED} PARENT_SCOPE)
+      endif()
+      if(CPU_INFO_BY_ASM_SUPPORTED OR CPU_INFO_BY_C_SUPPORTED)
+        set(RUNTIME_CPU_CAPABILITY_DETECTION 1 PARENT_SCOPE)
+      endif()
+    endif()
+  elseif(OPUS_CPU_ARM)
+    # ARM cpu detection is implemented for Windows and anything
+    # using a Linux kernel (such as Android).
+    if (CMAKE_SYSTEM_NAME MATCHES "(Windows|Linux|Android)")
+      set(RUNTIME_CPU_CAPABILITY_DETECTION 1 PARENT_SCOPE)
+    endif ()
+  else()
+    set(RUNTIME_CPU_CAPABILITY_DETECTION 0 PARENT_SCOPE)
+  endif()
+endfunction()
+
+function(add_sources_group target group)
+  target_sources(${target} PRIVATE ${ARGN})
+  source_group(${group} FILES ${ARGN})
+endfunction()
+
+function(get_opus_sources SOURCE_GROUP MAKE_FILE SOURCES)
+  # read file, each item in list is one group
+  file(STRINGS ${MAKE_FILE} opus_sources)
+
+  # add wildcard for regex match
+  string(CONCAT SOURCE_GROUP ${SOURCE_GROUP} ".*$")
+
+  # find group
+  foreach(val IN LISTS opus_sources)
+    if(val MATCHES ${SOURCE_GROUP})
+      list(LENGTH val list_length)
+      if(${list_length} EQUAL 1)
+        # for tests split by '=' and clean up the rest into a list
+        string(FIND ${val} "=" index)
+        math(EXPR index "${index} + 1")
+        string(SUBSTRING ${val}
+                         ${index}
+                         -1
+                         sources)
+        string(REPLACE " "
+                       ";"
+                       sources
+                       ${sources})
+      else()
+        # discard the group
+        list(REMOVE_AT val 0)
+        set(sources ${val})
+      endif()
+      break()
+    endif()
+  endforeach()
+
+  list(LENGTH sources list_length)
+  if(${list_length} LESS 1)
+    message(
+      FATAL_ERROR
+        "No files parsed succesfully from ${SOURCE_GROUP} in ${MAKE_FILE}")
+  endif()
+
+  # remove trailing whitespaces
+  set(list_var "")
+  foreach(source ${sources})
+    string(STRIP "${source}" source)
+    list(APPEND list_var "${source}")
+  endforeach()
+
+  set(${SOURCES} ${list_var} PARENT_SCOPE)
+endfunction()

Engine/lib/opus/cmake/OpusPackageVersion.cmake

@@ -0,0 +1,70 @@
+if(__opus_version)
+  return()
+endif()
+set(__opus_version INCLUDED)
+
+function(get_package_version PACKAGE_VERSION PROJECT_VERSION)
+
+  find_package(Git)
+  if(GIT_FOUND AND EXISTS "${CMAKE_CURRENT_LIST_DIR}/.git")
+    execute_process(COMMAND ${GIT_EXECUTABLE}
+                    --git-dir=${CMAKE_CURRENT_LIST_DIR}/.git describe
+                    --tags --match "v*" OUTPUT_VARIABLE OPUS_PACKAGE_VERSION)
+    if(OPUS_PACKAGE_VERSION)
+      string(STRIP ${OPUS_PACKAGE_VERSION}, OPUS_PACKAGE_VERSION)
+      string(REPLACE \n
+                     ""
+                     OPUS_PACKAGE_VERSION
+                     ${OPUS_PACKAGE_VERSION})
+      string(REPLACE ,
+                     ""
+                     OPUS_PACKAGE_VERSION
+                     ${OPUS_PACKAGE_VERSION})
+
+      string(SUBSTRING ${OPUS_PACKAGE_VERSION}
+                       1
+                       -1
+                       OPUS_PACKAGE_VERSION)
+      message(STATUS "Opus package version from git repo: ${OPUS_PACKAGE_VERSION}")
+    endif()
+
+  elseif(EXISTS "${CMAKE_CURRENT_LIST_DIR}/package_version"
+         AND NOT OPUS_PACKAGE_VERSION)
+    # Not a git repo, lets' try to parse it from package_version file if exists
+    file(STRINGS package_version OPUS_PACKAGE_VERSION
+         LIMIT_COUNT 1
+         REGEX "PACKAGE_VERSION=")
+    string(REPLACE "PACKAGE_VERSION="
+                   ""
+                   OPUS_PACKAGE_VERSION
+                   ${OPUS_PACKAGE_VERSION})
+    string(REPLACE "\""
+                   ""
+                   OPUS_PACKAGE_VERSION
+                   ${OPUS_PACKAGE_VERSION})
+    # In case we have a unknown dist here we just replace it with 0
+    string(REPLACE "unknown"
+                   "0"
+                   OPUS_PACKAGE_VERSION
+                   ${OPUS_PACKAGE_VERSION})
+      message(STATUS "Opus package version from package_version file: ${OPUS_PACKAGE_VERSION}")
+  endif()
+
+  if(OPUS_PACKAGE_VERSION)
+    string(REGEX
+      REPLACE "^([0-9]+.[0-9]+\\.?([0-9]+)?).*"
+               "\\1"
+               OPUS_PROJECT_VERSION
+               ${OPUS_PACKAGE_VERSION})
+  else()
+    # fail to parse version from git and package version
+    message(WARNING "Could not get package version.")
+    set(OPUS_PACKAGE_VERSION 0)
+    set(OPUS_PROJECT_VERSION 0)
+  endif()
+
+  message(STATUS "Opus project version: ${OPUS_PROJECT_VERSION}")
+
+  set(PACKAGE_VERSION ${OPUS_PACKAGE_VERSION} PARENT_SCOPE)
+  set(PROJECT_VERSION ${OPUS_PROJECT_VERSION} PARENT_SCOPE)
+endfunction()

Engine/lib/opus/cmake/OpusSources.cmake

@@ -0,0 +1,49 @@
+if(__opus_sources)
+  return()
+endif()
+set(__opus_sources INCLUDED)
+
+include(OpusFunctions)
+
+get_opus_sources(SILK_HEAD silk_headers.mk silk_headers)
+get_opus_sources(SILK_SOURCES silk_sources.mk silk_sources)
+get_opus_sources(SILK_SOURCES_FLOAT silk_sources.mk silk_sources_float)
+get_opus_sources(SILK_SOURCES_FIXED silk_sources.mk silk_sources_fixed)
+get_opus_sources(SILK_SOURCES_X86_RTCD silk_sources.mk silk_sources_x86_rtcd)
+get_opus_sources(SILK_SOURCES_SSE4_1 silk_sources.mk silk_sources_sse4_1)
+get_opus_sources(SILK_SOURCES_FIXED_SSE4_1 silk_sources.mk
+                 silk_sources_fixed_sse4_1)
+get_opus_sources(SILK_SOURCES_ARM_RTCD silk_sources.mk silk_sources_arm_rtcd)
+get_opus_sources(SILK_SOURCES_ARM_NEON_INTR silk_sources.mk
+                 silk_sources_arm_neon_intr)
+get_opus_sources(SILK_SOURCES_FIXED_ARM_NEON_INTR silk_sources.mk
+                 silk_sources_fixed_arm_neon_intr)
+
+get_opus_sources(OPUS_HEAD opus_headers.mk opus_headers)
+get_opus_sources(OPUS_SOURCES opus_sources.mk opus_sources)
+get_opus_sources(OPUS_SOURCES_FLOAT opus_sources.mk opus_sources_float)
+
+get_opus_sources(CELT_HEAD celt_headers.mk celt_headers)
+get_opus_sources(CELT_SOURCES celt_sources.mk celt_sources)
+get_opus_sources(CELT_SOURCES_X86_RTCD celt_sources.mk celt_sources_x86_rtcd)
+get_opus_sources(CELT_SOURCES_SSE celt_sources.mk celt_sources_sse)
+get_opus_sources(CELT_SOURCES_SSE2 celt_sources.mk celt_sources_sse2)
+get_opus_sources(CELT_SOURCES_SSE4_1 celt_sources.mk celt_sources_sse4_1)
+get_opus_sources(CELT_SOURCES_ARM_RTCD celt_sources.mk celt_sources_arm_rtcd)
+get_opus_sources(CELT_SOURCES_ARM_ASM celt_sources.mk celt_sources_arm_asm)
+get_opus_sources(CELT_AM_SOURCES_ARM_ASM celt_sources.mk
+                 celt_am_sources_arm_asm)
+get_opus_sources(CELT_SOURCES_ARM_NEON_INTR celt_sources.mk
+                 celt_sources_arm_neon_intr)
+get_opus_sources(CELT_SOURCES_ARM_NE10 celt_sources.mk celt_sources_arm_ne10)
+
+get_opus_sources(opus_demo_SOURCES Makefile.am opus_demo_sources)
+get_opus_sources(opus_custom_demo_SOURCES Makefile.am opus_custom_demo_sources)
+get_opus_sources(opus_compare_SOURCES Makefile.am opus_compare_sources)
+get_opus_sources(tests_test_opus_api_SOURCES Makefile.am test_opus_api_sources)
+get_opus_sources(tests_test_opus_encode_SOURCES Makefile.am
+                 test_opus_encode_sources)
+get_opus_sources(tests_test_opus_decode_SOURCES Makefile.am
+                 test_opus_decode_sources)
+get_opus_sources(tests_test_opus_padding_SOURCES Makefile.am
+                 test_opus_padding_sources)

Engine/lib/opus/cmake/RunTest.cmake

@@ -0,0 +1,61 @@
+if(NOT EXISTS ${TEST_EXECUTABLE})
+    message(FATAL_ERROR "Error could not find ${TEST_EXECUTABLE}, ensure that you built the test binary")
+endif()
+
+if(CMAKE_SYSTEM_NAME STREQUAL "Android")
+
+  # support to run plain old binary on android devices
+  # requires android debug bridge to be installed
+
+  find_program(adb_executable adb)
+  if(NOT adb_executable)
+    message(FATAL_ERROR "Error could not find adb")
+  endif()
+
+  # check if any device emulator is attached
+  execute_process(COMMAND ${adb_executable} shell echo RESULT_VARIABLE CMD_RESULT)
+  if(CMD_RESULT)
+    message(FATAL_ERROR "Error adb: no devices/emulators found")
+  endif()
+
+  # push binary
+  set(android_path /data/local/tmp)
+  execute_process(COMMAND ${adb_executable} push ${TEST_EXECUTABLE} ${android_path} RESULT_VARIABLE CMD_RESULT)
+  if(CMD_RESULT)
+    message(FATAL_ERROR "Error running ${adb_executable} push ${TEST_EXECUTABLE} ${android_path} failed with result ${CMD_RESULT}")
+  endif()
+
+  # set permissions
+  get_filename_component(test_executable ${TEST_EXECUTABLE} NAME)
+  set(test_executable_on_android /data/local/tmp/${test_executable})
+  execute_process(COMMAND ${adb_executable} shell chmod 555 ${test_executable_on_android} RESULT_VARIABLE CMD_RESULT)
+  if(CMD_RESULT)
+    message(FATAL_ERROR "Error running ${adb_executable} shell chmod 555 ${test_executable_on_android} failed with result ${CMD_RESULT}")
+  endif()
+
+  # run executable
+  execute_process(COMMAND ${adb_executable} shell ${test_executable_on_android} RESULT_VARIABLE CMD_RESULT)
+  if(CMD_RESULT)
+    message(FATAL_ERROR "Error running ${adb_executable} shell ${test_executable_on_android} failed with result ${CMD_RESULT}")
+  endif()
+
+  # clean up binary
+  execute_process(COMMAND ${adb_executable} shell rm ${test_executable_on_android} RESULT_VARIABLE CMD_RESULT)
+  if(CMD_RESULT)
+    message(FATAL_ERROR "Error running ${adb_executable} shell rm ${test_executable_on_android} failed with result ${CMD_RESULT}")
+  endif()
+
+elseif(CMAKE_SYSTEM_NAME STREQUAL "iOS")
+  # CTest doesn't support iOS
+
+  message(FATAL_ERROR "Error CTest is not supported on iOS")
+
+else()
+  # for other platforms just execute test binary on host
+
+  execute_process(COMMAND ${TEST_EXECUTABLE} RESULT_VARIABLE CMD_RESULT)
+  if(CMD_RESULT)
+    message(FATAL_ERROR "Error running ${TEST_EXECUTABLE} failed with result ${CMD_RESULT}")
+  endif()
+
+endif()

Engine/lib/opus/cmake/config.h.cmake.in

@@ -0,0 +1 @@
+#cmakedefine PACKAGE_VERSION "@PACKAGE_VERSION@"

Engine/lib/opus/cmake/cpu_info_by_asm.c

@@ -0,0 +1,31 @@
+#include <stdio.h>
+int main() {
+    unsigned int CPUInfo0;
+    unsigned int CPUInfo1;
+    unsigned int CPUInfo2;
+    unsigned int CPUInfo3;
+    unsigned int InfoType;
+#if defined(__i386__) && defined(__PIC__)
+/* %ebx is PIC register in 32-bit, so mustn't clobber it. */
+    __asm__ __volatile__ (
+        "xchg %%ebx, %1\n"
+        "cpuid\n"
+        "xchg %%ebx, %1\n":
+        "=a" (CPUInfo0),
+        "=r" (CPUInfo1),
+        "=c" (CPUInfo2),
+        "=d" (CPUInfo3) :
+        "0" (InfoType), "2" (0)
+    );
+#else
+    __asm__ __volatile__ (
+        "cpuid":
+        "=a" (CPUInfo0),
+        "=b" (CPUInfo1),
+        "=c" (CPUInfo2),
+        "=d" (CPUInfo3) :
+        "0" (InfoType), "2" (0)
+    );
+#endif
+    return 0;
+}

Engine/lib/opus/cmake/cpu_info_by_c.c

@@ -0,0 +1,9 @@
+#include <cpuid.h>
+int main() {
+    unsigned int CPUInfo0;
+    unsigned int CPUInfo1;
+    unsigned int CPUInfo2;
+    unsigned int CPUInfo3;
+    unsigned int InfoType;
+    return __get_cpuid_count(InfoType, 0, &CPUInfo0, &CPUInfo1, &CPUInfo2, &CPUInfo3);
+}

Engine/lib/opus/cmake/vla.c

@@ -0,0 +1,7 @@
+int main() {
+    static int x;
+    char a[++x];
+    a[sizeof a - 1] = 0;
+    int N;
+    return a[0];
+}