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-rw-r--r--third_party/aom/build/cmake/aom_config_defaults.cmake248
-rw-r--r--third_party/aom/build/cmake/aom_configure.cmake55
-rw-r--r--third_party/aom/build/cmake/aom_experiment_deps.cmake4
-rw-r--r--third_party/aom/build/cmake/aom_optimization.cmake4
-rw-r--r--third_party/aom/build/cmake/exports.cmake7
-rw-r--r--third_party/aom/build/cmake/exports_sources.cmake16
-rw-r--r--third_party/aom/build/cmake/generate_aom_config_templates.cmake19
-rw-r--r--third_party/aom/build/cmake/generate_exports.cmake24
-rw-r--r--third_party/aom/build/cmake/ios-Info.plist37
-rwxr-xr-xthird_party/aom/build/cmake/iosbuild.sh384
-rwxr-xr-xthird_party/aom/build/cmake/rtcd.pl467
-rw-r--r--third_party/aom/build/cmake/util.cmake91
-rwxr-xr-xthird_party/aom/build/cmake/version.pl10
13 files changed, 1233 insertions, 133 deletions
diff --git a/third_party/aom/build/cmake/aom_config_defaults.cmake b/third_party/aom/build/cmake/aom_config_defaults.cmake
index 19af5c43b..a07438cfe 100644
--- a/third_party/aom/build/cmake/aom_config_defaults.cmake
+++ b/third_party/aom/build/cmake/aom_config_defaults.cmake
@@ -7,90 +7,190 @@
# at www.aomedia.org/license/software. If the Alliance for Open Media Patent
# License 1.0 was not distributed with this source code in the PATENTS file, you
# can obtain it at www.aomedia.org/license/patent.
+
+include("${AOM_ROOT}/build/cmake/util.cmake")
+
+# This file sets default values for libaom configuration variables. All libaom
+# config variables are added to the CMake variable cache via the macros provided
+# in util.cmake.
+
#
-# Defaults for every libaom configuration variable. Here we add all libaom
-# config variables to the cmake variable cache, but omit the FORCE parameter to
-# allow users to specify values when executing cmake to generate build files.
-# Values here are used only if not set by the user.
-set(INLINE "" CACHE STRING "Sets INLINE value for current target.")
+# The variables in this section of the file are detected at configuration time,
+# but can be overridden via the use of CONFIG_* and ENABLE_* values also defined
+# in this file.
+#
+
+set_aom_detect_var(INLINE "" STRING "Sets INLINE value for current target.")
# CPUs.
-set(ARCH_ARM 0 CACHE NUMBER "Enables ARM architecture.")
-set(ARCH_MIPS 0 CACHE NUMBER "Enables MIPS architecture.")
-set(ARCH_PPC 0 CACHE NUMBER "Enables PPC architecture.")
-set(ARCH_X86 0 CACHE NUMBER "Enables X86 architecture.")
-set(ARCH_X86_64 0 CACHE NUMBER "Enables X86_64 architecture.")
-
-# ARM optimization flags.
-set(HAVE_NEON 0 CACHE NUMBER "Enables NEON intrinsics optimizations.")
-
-# MIPS optimization flags.
-set(HAVE_DSPR2 0 CACHE NUMBER "Enables DSPR2 optimizations.")
-set(HAVE_MIPS32 0 CACHE NUMBER "Enables MIPS32 optimizations.")
-set(HAVE_MIPS64 0 CACHE NUMBER "Enables MIPS64 optimizations. ")
-set(HAVE_MSA 0 CACHE NUMBER "Enables MSA optimizations.")
-
-# PPC optimization flags.
-set(HAVE_VSX 0 CACHE NUMBER "Enables VSX optimizations.")
-
-# x86/x86_64 optimization flags.
-set(HAVE_AVX 0 CACHE NUMBER "Enables AVX optimizations.")
-set(HAVE_AVX2 0 CACHE NUMBER "Enables AVX2 optimizations.")
-set(HAVE_MMX 0 CACHE NUMBER "Enables MMX optimizations. ")
-set(HAVE_SSE 0 CACHE NUMBER "Enables SSE optimizations.")
-set(HAVE_SSE2 0 CACHE NUMBER "Enables SSE2 optimizations.")
-set(HAVE_SSE3 0 CACHE NUMBER "Enables SSE3 optimizations.")
-set(HAVE_SSE4_1 0 CACHE NUMBER "Enables SSE 4.1 optimizations.")
-set(HAVE_SSE4_2 0 CACHE NUMBER "Enables SSE 4.2 optimizations.")
-set(HAVE_SSSE3 0 CACHE NUMBER "Enables SSSE3 optimizations.")
+set_aom_detect_var(ARCH_ARM 0 NUMBER "Enables ARM architecture.")
+set_aom_detect_var(ARCH_MIPS 0 NUMBER "Enables MIPS architecture.")
+set_aom_detect_var(ARCH_PPC 0 NUMBER "Enables PPC architecture.")
+set_aom_detect_var(ARCH_X86 0 NUMBER "Enables X86 architecture.")
+set_aom_detect_var(ARCH_X86_64 0 NUMBER "Enables X86_64 architecture.")
+
+# ARM feature flags.
+set_aom_detect_var(HAVE_NEON 0 NUMBER "Enables NEON intrinsics optimizations.")
+
+# MIPS feature flags.
+set_aom_detect_var(HAVE_DSPR2 0 NUMBER "Enables DSPR2 optimizations.")
+set_aom_detect_var(HAVE_MIPS32 0 NUMBER "Enables MIPS32 optimizations.")
+set_aom_detect_var(HAVE_MIPS64 0 NUMBER "Enables MIPS64 optimizations. ")
+set_aom_detect_var(HAVE_MSA 0 NUMBER "Enables MSA optimizations.")
+
+# PPC feature flags.
+set_aom_detect_var(HAVE_VSX 0 NUMBER "Enables VSX optimizations.")
+
+# x86/x86_64 feature flags.
+set_aom_detect_var(HAVE_AVX 0 NUMBER "Enables AVX optimizations.")
+set_aom_detect_var(HAVE_AVX2 0 NUMBER "Enables AVX2 optimizations.")
+set_aom_detect_var(HAVE_MMX 0 NUMBER "Enables MMX optimizations. ")
+set_aom_detect_var(HAVE_SSE 0 NUMBER "Enables SSE optimizations.")
+set_aom_detect_var(HAVE_SSE2 0 NUMBER "Enables SSE2 optimizations.")
+set_aom_detect_var(HAVE_SSE3 0 NUMBER "Enables SSE3 optimizations.")
+set_aom_detect_var(HAVE_SSE4_1 0 NUMBER "Enables SSE 4.1 optimizations.")
+set_aom_detect_var(HAVE_SSE4_2 0 NUMBER "Enables SSE 4.2 optimizations.")
+set_aom_detect_var(HAVE_SSSE3 0 NUMBER "Enables SSSE3 optimizations.")
# Flags describing the build environment.
-set(HAVE_FEXCEPT 0 CACHE NUMBER "Internal flag, GNU fenv.h present for target.")
-set(HAVE_PTHREAD_H 0 CACHE NUMBER "Internal flag, target pthread support.")
-set(HAVE_UNISTD_H 0 CACHE NUMBER "Internal flag, unistd.h present for target.")
-set(HAVE_WXWIDGETS 0 CACHE NUMBER "WxWidgets present.")
+set_aom_detect_var(HAVE_FEXCEPT 0 NUMBER
+ "Internal flag, GNU fenv.h present for target.")
+set_aom_detect_var(HAVE_PTHREAD_H 0 NUMBER
+ "Internal flag, target pthread support.")
+set_aom_detect_var(HAVE_UNISTD_H 0 NUMBER
+ "Internal flag, unistd.h present for target.")
+set_aom_detect_var(HAVE_WXWIDGETS 0 NUMBER "WxWidgets present.")
+
+#
+# Variables in this section can be set from the CMake command line or from
+# within the CMake GUI. The variables control libaom features.
+#
# Build configuration flags.
-set(CONFIG_AV1_DECODER 1 CACHE NUMBER "Enable AV1 decoder.")
-set(CONFIG_AV1_ENCODER 1 CACHE NUMBER "Enable AV1 encoder.")
-set(CONFIG_BIG_ENDIAN 0 CACHE NUMBER "Internal flag.")
-set(CONFIG_GCC 0 CACHE NUMBER "Building with GCC (detected).")
-set(CONFIG_GCOV 0 CACHE NUMBER "Enable gcov support.")
-set(CONFIG_GPROF 0 CACHE NUMBER "Enable gprof support.")
-set(CONFIG_LIBYUV 1 CACHE NUMBER "Enables libyuv scaling/conversion support.")
-set(CONFIG_MSVS 0 CACHE NUMBER "Building with MS Visual Studio (detected).")
-set(CONFIG_MULTITHREAD 1 CACHE NUMBER "Multithread support.")
-set(CONFIG_OS_SUPPORT 0 CACHE NUMBER "Internal flag.")
-set(CONFIG_PIC 0 CACHE NUMBER "Build with PIC enabled.")
-set(CONFIG_RUNTIME_CPU_DETECT 1 CACHE NUMBER "Runtime CPU detection support.")
-set(CONFIG_SHARED 0 CACHE NUMBER "Build shared libs.")
-set(CONFIG_STATIC 1 CACHE NUMBER "Build static libs.")
-set(CONFIG_WEBM_IO 1 CACHE NUMBER "Enables WebM support.")
+set_aom_config_var(AOM_RTCD_FLAGS "" STRING
+ "Arguments to pass to rtcd.pl. Separate with ';'")
+set_aom_config_var(CONFIG_AV1_DECODER 1 NUMBER "Enable AV1 decoder.")
+set_aom_config_var(CONFIG_AV1_ENCODER 1 NUMBER "Enable AV1 encoder.")
+set_aom_config_var(CONFIG_BIG_ENDIAN 0 NUMBER "Internal flag.")
+set_aom_config_var(CONFIG_GCC 0 NUMBER "Building with GCC (detect).")
+set_aom_config_var(CONFIG_GCOV 0 NUMBER "Enable gcov support.")
+set_aom_config_var(CONFIG_GPROF 0 NUMBER "Enable gprof support.")
+set_aom_config_var(CONFIG_LIBYUV 1 NUMBER
+ "Enables libyuv scaling/conversion support.")
+
+set_aom_config_var(CONFIG_MULTITHREAD 1 NUMBER "Multithread support.")
+set_aom_config_var(CONFIG_OS_SUPPORT 0 NUMBER "Internal flag.")
+set_aom_config_var(CONFIG_PIC 0 NUMBER "Build with PIC enabled.")
+set_aom_config_var(CONFIG_RUNTIME_CPU_DETECT 1 NUMBER
+ "Runtime CPU detection support.")
+set_aom_config_var(CONFIG_SHARED 0 NUMBER "Build shared libs.")
+set_aom_config_var(CONFIG_STATIC 1 NUMBER "Build static libs.")
+set_aom_config_var(CONFIG_WEBM_IO 1 NUMBER "Enables WebM support.")
# Debugging flags.
-set(CONFIG_BITSTREAM_DEBUG 0 CACHE NUMBER "Bitstream debugging flag.")
-set(CONFIG_DEBUG 0 CACHE NUMBER "Debug build flag.")
-set(CONFIG_MISMATCH_DEBUG 0 CACHE NUMBER "Mismatch debugging flag.")
+set_aom_config_var(CONFIG_BITSTREAM_DEBUG 0 NUMBER "Bitstream debugging flag.")
+set_aom_config_var(CONFIG_DEBUG 0 NUMBER "Debug build flag.")
+set_aom_config_var(CONFIG_MISMATCH_DEBUG 0 NUMBER "Mismatch debugging flag.")
# AV1 feature flags.
-set(CONFIG_ACCOUNTING 0 CACHE NUMBER "Enables bit accounting.")
-set(CONFIG_ANALYZER 0 CACHE NUMBER "Enables bit stream analyzer.")
-set(CONFIG_COEFFICIENT_RANGE_CHECKING 0 CACHE NUMBER "Coefficient range check.")
-set(CONFIG_DENOISE 0 CACHE NUMBER "Denoise/noise modeling support in encoder.")
-set(CONFIG_FILEOPTIONS 1 CACHE NUMBER "Enables encoder config file support.")
-set(CONFIG_INSPECTION 0 CACHE NUMBER "Enables bitstream inspection.")
-set(CONFIG_INTERNAL_STATS 0 CACHE NUMBER "Enables internal encoder stats.")
-set(CONFIG_LOWBITDEPTH 0 CACHE NUMBER "Enables 8-bit optimized pipeline.")
-set(CONFIG_SIZE_LIMIT 0 CACHE NUMBER "Limit max decode width/height.")
-set(CONFIG_SPATIAL_RESAMPLING 1 CACHE NUMBER "Spatial resampling.")
-set(DECODE_HEIGHT_LIMIT 0 CACHE NUMBER "Set limit for decode height.")
-set(DECODE_WIDTH_LIMIT 0 CACHE NUMBER "Set limit for decode width.")
+set_aom_config_var(CONFIG_ACCOUNTING 0 NUMBER "Enables bit accounting.")
+set_aom_config_var(CONFIG_ANALYZER 0 NUMBER "Enables bit stream analyzer.")
+set_aom_config_var(CONFIG_COEFFICIENT_RANGE_CHECKING 0 NUMBER
+ "Coefficient range check.")
+set_aom_config_var(CONFIG_DENOISE 1 NUMBER
+ "Denoise/noise modeling support in encoder.")
+set_aom_config_var(CONFIG_FILEOPTIONS 1 NUMBER
+ "Enables encoder config file support.")
+set_aom_config_var(CONFIG_FIX_GF_LENGTH 1 NUMBER
+ "Fix the GF length if possible")
+set_aom_config_var(CONFIG_INSPECTION 0 NUMBER "Enables bitstream inspection.")
+set_aom_config_var(CONFIG_INTERNAL_STATS 0 NUMBER
+ "Enables internal encoder stats.")
+set_aom_config_var(CONFIG_LOWBITDEPTH 0 NUMBER
+ "Enables 8-bit optimized pipeline.")
+set_aom_config_var(CONFIG_MAX_DECODE_PROFILE 2 NUMBER
+ "Max profile to support decoding.")
+set_aom_config_var(CONFIG_NORMAL_TILE_MODE 0 NUMBER
+ "Only enables normal tile mode.")
+set_aom_config_var(
+ CONFIG_REDUCED_ENCODER_BORDER 0 NUMBER
+ "Enable reduced border extention for encoder. \
+ Disables superres and resize support."
+ )
+set_aom_config_var(CONFIG_SIZE_LIMIT 0 NUMBER "Limit max decode width/height.")
+set_aom_config_var(CONFIG_SPATIAL_RESAMPLING 1 NUMBER "Spatial resampling.")
+set_aom_config_var(DECODE_HEIGHT_LIMIT 0 NUMBER "Set limit for decode height.")
+set_aom_config_var(DECODE_WIDTH_LIMIT 0 NUMBER "Set limit for decode width.")
+set_aom_config_var(CONFIG_GLOBAL_MOTION_SEARCH 1 NUMBER
+ "Global motion search flag.")
# AV1 experiment flags.
-set(CONFIG_COLLECT_INTER_MODE_RD_STATS 1 CACHE NUMBER "AV1 experiment flag.")
-set(CONFIG_COLLECT_RD_STATS 0 CACHE NUMBER "AV1 experiment flag.")
-set(CONFIG_DIST_8X8 1 CACHE NUMBER "AV1 experiment flag.")
-set(CONFIG_ENTROPY_STATS 0 CACHE NUMBER "AV1 experiment flag.")
-set(CONFIG_FP_MB_STATS 0 CACHE NUMBER "AV1 experiment flag.")
-set(CONFIG_INTER_STATS_ONLY 0 CACHE NUMBER "AV1 experiment flag.")
-set(CONFIG_RD_DEBUG 0 CACHE NUMBER "AV1 experiment flag.")
+set_aom_config_var(CONFIG_COLLECT_INTER_MODE_RD_STATS 1 NUMBER
+ "AV1 experiment flag.")
+set_aom_config_var(CONFIG_COLLECT_RD_STATS 0 NUMBER "AV1 experiment flag.")
+set_aom_config_var(CONFIG_DIST_8X8 0 NUMBER "AV1 experiment flag.")
+set_aom_config_var(CONFIG_ENTROPY_STATS 0 NUMBER "AV1 experiment flag.")
+set_aom_config_var(CONFIG_FP_MB_STATS 0 NUMBER "AV1 experiment flag.")
+set_aom_config_var(CONFIG_INTER_STATS_ONLY 0 NUMBER "AV1 experiment flag.")
+set_aom_config_var(CONFIG_RD_DEBUG 0 NUMBER "AV1 experiment flag.")
+set_aom_config_var(CONFIG_2PASS_PARTITION_SEARCH_LVL 1 NUMBER
+ "AV1 experiment flag.")
+set_aom_config_var(CONFIG_SHARP_SETTINGS 0 NUMBER
+ "Use sharper encoding settings")
+
+#
+# Variables in this section control optional features of the build system.
+#
+set_aom_option_var(ENABLE_CCACHE "Enable ccache support." OFF)
+set_aom_option_var(ENABLE_DECODE_PERF_TESTS "Enables decoder performance tests"
+ OFF)
+set_aom_option_var(ENABLE_DISTCC "Enable distcc support." OFF)
+set_aom_option_var(ENABLE_DOCS
+ "Enable documentation generation (doxygen required)." ON)
+set_aom_option_var(ENABLE_ENCODE_PERF_TESTS "Enables encoder performance tests"
+ OFF)
+set_aom_option_var(ENABLE_EXAMPLES "Enables build of example code." ON)
+set_aom_option_var(ENABLE_GOMA "Enable goma support." OFF)
+set_aom_option_var(
+ ENABLE_IDE_TEST_HOSTING
+ "Enables running tests within IDEs like Visual Studio and Xcode." OFF)
+set_aom_option_var(ENABLE_NASM "Use nasm instead of yasm for x86 assembly." OFF)
+set_aom_option_var(ENABLE_TESTDATA "Enables unit test data download targets."
+ ON)
+set_aom_option_var(ENABLE_TESTS "Enables unit tests." ON)
+set_aom_option_var(ENABLE_TOOLS "Enable applications in tools sub directory."
+ ON)
+set_aom_option_var(ENABLE_WERROR "Converts warnings to errors at compile time."
+ OFF)
+
+# ARM assembly/intrinsics flags.
+set_aom_option_var(ENABLE_NEON "Enables NEON optimizations on ARM targets." ON)
+
+# MIPS assembly/intrinsics flags.
+set_aom_option_var(ENABLE_DSPR2 "Enables DSPR2 optimizations on MIPS targets."
+ OFF)
+set_aom_option_var(ENABLE_MSA "Enables MSA optimizations on MIPS targets." OFF)
+
+# VSX intrinsics flags.
+set_aom_option_var(ENABLE_VSX "Enables VSX optimizations on PowerPC targets."
+ ON)
+
+# x86/x86_64 assembly/intrinsics flags.
+set_aom_option_var(ENABLE_MMX
+ "Enables MMX optimizations on x86/x86_64 targets." ON)
+set_aom_option_var(ENABLE_SSE
+ "Enables SSE optimizations on x86/x86_64 targets." ON)
+set_aom_option_var(ENABLE_SSE2
+ "Enables SSE2 optimizations on x86/x86_64 targets." ON)
+set_aom_option_var(ENABLE_SSE3
+ "Enables SSE3 optimizations on x86/x86_64 targets." ON)
+set_aom_option_var(ENABLE_SSSE3
+ "Enables SSSE3 optimizations on x86/x86_64 targets." ON)
+set_aom_option_var(ENABLE_SSE4_1
+ "Enables SSE4_1 optimizations on x86/x86_64 targets." ON)
+set_aom_option_var(ENABLE_SSE4_2
+ "Enables SSE4_2 optimizations on x86/x86_64 targets." ON)
+set_aom_option_var(ENABLE_AVX
+ "Enables AVX optimizations on x86/x86_64 targets." ON)
+set_aom_option_var(ENABLE_AVX2
+ "Enables AVX2 optimizations on x86/x86_64 targets." ON)
diff --git a/third_party/aom/build/cmake/aom_configure.cmake b/third_party/aom/build/cmake/aom_configure.cmake
index a12389778..c0c7381e8 100644
--- a/third_party/aom/build/cmake/aom_configure.cmake
+++ b/third_party/aom/build/cmake/aom_configure.cmake
@@ -20,19 +20,6 @@ include(FindThreads)
set(AOM_SUPPORTED_CPU_TARGETS
"arm64 armv7 armv7s generic mips32 mips64 ppc x86 x86_64")
-# Generate the user config settings. This must occur before include of
-# aom_config_defaults.cmake (because it turns every config variable into a cache
-# variable with its own help string).
-get_cmake_property(cmake_cache_vars CACHE_VARIABLES)
-foreach(cache_var ${cmake_cache_vars})
- get_property(cache_var_helpstring CACHE ${cache_var} PROPERTY HELPSTRING)
- set(cmdline_helpstring "No help, variable specified on the command line.")
- if("${cache_var_helpstring}" STREQUAL "${cmdline_helpstring}")
- set(AOM_CMAKE_CONFIG "${AOM_CMAKE_CONFIG} -D${cache_var}=${${cache_var}}")
- endif()
-endforeach()
-string(STRIP "${AOM_CMAKE_CONFIG}" AOM_CMAKE_CONFIG)
-
include("${AOM_ROOT}/build/cmake/aom_config_defaults.cmake")
include("${AOM_ROOT}/build/cmake/aom_experiment_deps.cmake")
include("${AOM_ROOT}/build/cmake/aom_optimization.cmake")
@@ -40,6 +27,16 @@ include("${AOM_ROOT}/build/cmake/compiler_flags.cmake")
include("${AOM_ROOT}/build/cmake/compiler_tests.cmake")
include("${AOM_ROOT}/build/cmake/util.cmake")
+# Generate the user config settings.
+list(APPEND aom_build_vars ${AOM_CONFIG_VARS} ${AOM_OPTION_VARS})
+foreach(cache_var ${aom_build_vars})
+ get_property(cache_var_helpstring CACHE ${cache_var} PROPERTY HELPSTRING)
+ if("${cache_var_helpstring}" STREQUAL "${cmake_cmdline_helpstring}")
+ set(AOM_CMAKE_CONFIG "${AOM_CMAKE_CONFIG} -D${cache_var}=${${cache_var}}")
+ endif()
+endforeach()
+string(STRIP "${AOM_CMAKE_CONFIG}" AOM_CMAKE_CONFIG)
+
# Detect target CPU.
if(NOT AOM_TARGET_CPU)
if("${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "AMD64" OR
@@ -73,7 +70,9 @@ if(NOT AOM_TARGET_CPU)
endif()
if(CMAKE_TOOLCHAIN_FILE) # Add toolchain file to config string.
- set(toolchain_string "-DCMAKE_TOOLCHAIN_FILE=\\\"${CMAKE_TOOLCHAIN_FILE}\\\"")
+ file(RELATIVE_PATH toolchain_path "${AOM_CONFIG_DIR}"
+ "${CMAKE_TOOLCHAIN_FILE}")
+ set(toolchain_string "-DCMAKE_TOOLCHAIN_FILE=\\\"${toolchain_path}\\\"")
set(AOM_CMAKE_CONFIG "${toolchain_string} ${AOM_CMAKE_CONFIG}")
else()
@@ -81,6 +80,8 @@ else()
set(AOM_CMAKE_CONFIG "-DAOM_TARGET_CPU=${AOM_TARGET_CPU} ${AOM_CMAKE_CONFIG}")
endif()
set(AOM_CMAKE_CONFIG "-G \\\"${CMAKE_GENERATOR}\\\" ${AOM_CMAKE_CONFIG}")
+file(RELATIVE_PATH source_path "${AOM_CONFIG_DIR}" "${AOM_ROOT}")
+set(AOM_CMAKE_CONFIG "cmake ${source_path} ${AOM_CMAKE_CONFIG}")
string(STRIP "${AOM_CMAKE_CONFIG}" AOM_CMAKE_CONFIG)
message("--- aom_configure: Detected CPU: ${AOM_TARGET_CPU}")
@@ -90,13 +91,13 @@ if("${CMAKE_BUILD_TYPE}" MATCHES "Deb")
set(CONFIG_DEBUG 1)
endif()
-if(NOT MSVC)
- if(BUILD_SHARED_LIBS)
- set(CONFIG_PIC 1)
- set(CONFIG_SHARED 1)
- set(CONFIG_STATIC 0)
- endif()
+if(BUILD_SHARED_LIBS)
+ set(CONFIG_PIC 1)
+ set(CONFIG_SHARED 1)
+ set(CONFIG_STATIC 0)
+endif()
+if(NOT MSVC)
if(CONFIG_PIC)
# TODO(tomfinegan): clang needs -pie in CMAKE_EXE_LINKER_FLAGS for this to
@@ -109,8 +110,6 @@ if(NOT MSVC)
set(AOM_AS_FLAGS ${AOM_AS_FLAGS} -DPIC)
endif()
endif()
-else()
- set(CONFIG_MSVS 1)
endif()
if(NOT "${AOM_SUPPORTED_CPU_TARGETS}" MATCHES "${AOM_TARGET_CPU}")
@@ -261,13 +260,15 @@ else()
add_compiler_flag_if_supported("-Wlogical-op")
add_compiler_flag_if_supported("-Wpointer-arith")
add_compiler_flag_if_supported("-Wsign-compare")
- add_compiler_flag_if_supported("-Wstack-usage=360000")
add_compiler_flag_if_supported("-Wstring-conversion")
add_compiler_flag_if_supported("-Wtype-limits")
add_compiler_flag_if_supported("-Wuninitialized")
add_compiler_flag_if_supported("-Wunused")
add_compiler_flag_if_supported("-Wvla")
+ add_c_flag_if_supported("-Wstack-usage=100000")
+ add_cxx_flag_if_supported("-Wstack-usage=360000")
+
# TODO(jzern): this could be added as a cxx flags for test/*.cc only, avoiding
# third_party.
add_c_flag_if_supported("-Wshorten-64-to-32")
@@ -278,6 +279,12 @@ else()
# Add -Wundef only for C files to avoid massive gtest warning spam.
add_c_flag_if_supported("-Wundef")
+ # Quiet gcc 6 vs 7 abi warnings:
+ # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77728
+ if("${AOM_TARGET_CPU}" MATCHES "arm")
+ add_cxx_flag_if_supported("-Wno-psabi")
+ endif()
+
if(ENABLE_WERROR)
add_compiler_flag_if_supported("-Werror")
endif()
@@ -344,7 +351,7 @@ foreach(NUM RANGE ${AOM_RTCD_CUSTOM_COMMAND_COUNT})
list(GET AOM_RTCD_HEADER_FILE_LIST ${NUM} AOM_RTCD_HEADER_FILE)
list(GET AOM_RTCD_SOURCE_FILE_LIST ${NUM} AOM_RTCD_SOURCE_FILE)
list(GET AOM_RTCD_SYMBOL_LIST ${NUM} AOM_RTCD_SYMBOL)
- execute_process(COMMAND ${PERL_EXECUTABLE} "${AOM_ROOT}/build/make/rtcd.pl"
+ execute_process(COMMAND ${PERL_EXECUTABLE} "${AOM_ROOT}/build/cmake/rtcd.pl"
--arch=${AOM_TARGET_CPU}
--sym=${AOM_RTCD_SYMBOL} ${AOM_RTCD_FLAGS}
--config=${AOM_CONFIG_DIR}/config/aom_config.h
diff --git a/third_party/aom/build/cmake/aom_experiment_deps.cmake b/third_party/aom/build/cmake/aom_experiment_deps.cmake
index e2c8102aa..0688704e5 100644
--- a/third_party/aom/build/cmake/aom_experiment_deps.cmake
+++ b/third_party/aom/build/cmake/aom_experiment_deps.cmake
@@ -25,4 +25,8 @@ macro(fix_experiment_configs)
change_config_and_warn(CONFIG_RD_DEBUG 0 CONFIG_JNT_COMP)
endif()
+ if(CONFIG_DIST_8X8 AND CONFIG_MULTITHREAD)
+ change_config_and_warn(CONFIG_DIST_8X8 0 CONFIG_MULTITHREAD)
+ endif()
+
endmacro()
diff --git a/third_party/aom/build/cmake/aom_optimization.cmake b/third_party/aom/build/cmake/aom_optimization.cmake
index ce3dc0340..be32a3212 100644
--- a/third_party/aom/build/cmake/aom_optimization.cmake
+++ b/third_party/aom/build/cmake/aom_optimization.cmake
@@ -193,13 +193,13 @@ function(test_nasm)
endfunction()
# Adds build command for generation of rtcd C source files using
-# build/make/rtcd.pl. $config is the input perl file, $output is the output C
+# build/cmake/rtcd.pl. $config is the input perl file, $output is the output C
# include file, $source is the C source file, and $symbol is used for the symbol
# argument passed to rtcd.pl.
function(add_rtcd_build_step config output source symbol)
add_custom_command(OUTPUT ${output}
COMMAND ${PERL_EXECUTABLE} ARGS
- "${AOM_ROOT}/build/make/rtcd.pl"
+ "${AOM_ROOT}/build/cmake/rtcd.pl"
--arch=${AOM_TARGET_CPU}
--sym=${symbol} ${AOM_RTCD_FLAGS}
--config=${AOM_CONFIG_DIR}/config/aom_config.h
diff --git a/third_party/aom/build/cmake/exports.cmake b/third_party/aom/build/cmake/exports.cmake
index 5abfc9a5f..e0813dc0f 100644
--- a/third_party/aom/build/cmake/exports.cmake
+++ b/third_party/aom/build/cmake/exports.cmake
@@ -34,7 +34,8 @@ function(setup_exports_target)
-DAOM_SYM_FILE="${aom_sym_file}" -DAOM_MSVC=${MSVC}
-DAOM_XCODE=${XCODE} -DCONFIG_NAME=$<CONFIG>
-DCONFIG_AV1_DECODER=${CONFIG_AV1_DECODER}
- -DCONFIG_AV1_ENCODER=${CONFIG_AV1_ENCODER} -P
+ -DCONFIG_AV1_ENCODER=${CONFIG_AV1_ENCODER}
+ -DENABLE_TESTS=${ENABLE_TESTS} -P
"${AOM_ROOT}/build/cmake/generate_exports.cmake"
SOURCES ${AOM_EXPORTS_SOURCES}
DEPENDS ${AOM_EXPORTS_SOURCES})
@@ -47,10 +48,12 @@ function(setup_exports_target)
set_property(TARGET aom APPEND_STRING
PROPERTY LINK_FLAGS "-exported_symbols_list ${aom_sym_file}")
elseif(WIN32)
- message(FATAL_ERROR "Windows DLL builds not supported yet.")
if(NOT MSVC)
set_property(TARGET aom APPEND_STRING
PROPERTY LINK_FLAGS "-Wl,--version-script ${aom_sym_file}")
+ else()
+ set_property(TARGET aom APPEND_STRING
+ PROPERTY LINK_FLAGS "/DEF:${aom_sym_file}")
endif()
# TODO(tomfinegan): Sort out the import lib situation and flags for MSVC.
diff --git a/third_party/aom/build/cmake/exports_sources.cmake b/third_party/aom/build/cmake/exports_sources.cmake
index 48790dbaa..576920e36 100644
--- a/third_party/aom/build/cmake/exports_sources.cmake
+++ b/third_party/aom/build/cmake/exports_sources.cmake
@@ -13,14 +13,20 @@ if(AOM_BUILD_CMAKE_EXPORTS_SOURCES_CMAKE_)
endif() # AOM_BUILD_CMAKE_EXPORTS_SOURCES_CMAKE_
set(AOM_BUILD_CMAKE_EXPORTS_SOURCES_CMAKE_ 1)
-set(AOM_EXPORTS_SOURCES "${AOM_ROOT}/aom/exports_com")
+list(APPEND AOM_EXPORTS_SOURCES "${AOM_ROOT}/aom/exports_com"
+ "${AOM_ROOT}/av1/exports_com")
if(CONFIG_AV1_DECODER)
- set(AOM_EXPORTS_SOURCES ${AOM_EXPORTS_SOURCES} "${AOM_ROOT}/aom/exports_dec"
- "${AOM_ROOT}/av1/exports_dec")
+ list(APPEND AOM_EXPORTS_SOURCES "${AOM_ROOT}/aom/exports_dec"
+ "${AOM_ROOT}/av1/exports_dec")
endif()
if(CONFIG_AV1_ENCODER)
- set(AOM_EXPORTS_SOURCES ${AOM_EXPORTS_SOURCES} "${AOM_ROOT}/aom/exports_enc"
- "${AOM_ROOT}/av1/exports_enc")
+ list(APPEND AOM_EXPORTS_SOURCES "${AOM_ROOT}/aom/exports_enc"
+ "${AOM_ROOT}/av1/exports_enc")
+endif()
+
+if(ENABLE_TESTS)
+ list(APPEND AOM_EXPORTS_SOURCES "${AOM_ROOT}/aom/exports_test"
+ "${AOM_ROOT}/av1/exports_test")
endif()
diff --git a/third_party/aom/build/cmake/generate_aom_config_templates.cmake b/third_party/aom/build/cmake/generate_aom_config_templates.cmake
index 8fbb4737b..b91c036de 100644
--- a/third_party/aom/build/cmake/generate_aom_config_templates.cmake
+++ b/third_party/aom/build/cmake/generate_aom_config_templates.cmake
@@ -78,23 +78,24 @@ if(NOT EXISTS "${AOM_DEFAULTS}")
endif()
include("${AOM_ROOT}/build/cmake/aom_config_defaults.cmake")
-get_cmake_property(cmake_cache_vars CACHE_VARIABLES)
+list(APPEND aom_build_vars ${AOM_DETECT_VARS} ${AOM_CONFIG_VARS})
+list(SORT aom_build_vars)
set(aom_config_h_template "${AOM_CONFIG_DIR}/config/aom_config.h.cmake")
file(WRITE "${aom_config_h_template}" ${h_file_header_block})
-foreach(cache_var ${cmake_cache_vars})
- if(NOT "${cache_var}" MATCHES "AOM_CONFIG_DIR\|AOM_ROOT\|^CMAKE_")
+foreach(aom_var ${aom_build_vars})
+ if(NOT "${aom_var}" STREQUAL "AOM_RTCD_FLAGS")
file(APPEND "${aom_config_h_template}"
- "\#define ${cache_var} \${${cache_var}}\n")
+ "\#define ${aom_var} \${${aom_var}}\n")
endif()
endforeach()
-file(APPEND "${aom_config_h_template}" "\#endif /* AOM_CONFIG_H_ */")
+file(APPEND "${aom_config_h_template}" "\#endif // AOM_CONFIG_H_")
set(aom_asm_config_template "${AOM_CONFIG_DIR}/config/aom_config.asm.cmake")
file(WRITE "${aom_asm_config_template}" ${asm_file_header_block})
-foreach(cache_var ${cmake_cache_vars})
- if(NOT "${cache_var}" MATCHES "AOM_CONFIG_DIR\|AOM_ROOT\|^CMAKE_\|INLINE")
- file(APPEND "${aom_asm_config_template}"
- "${cache_var} equ \${${cache_var}}\n")
+foreach(aom_var ${aom_build_vars})
+ if(NOT "${aom_var}" STREQUAL "INLINE" AND NOT "${aom_var}" STREQUAL
+ "AOM_RTCD_FLAGS")
+ file(APPEND "${aom_asm_config_template}" "${aom_var} equ \${${aom_var}}\n")
endif()
endforeach()
diff --git a/third_party/aom/build/cmake/generate_exports.cmake b/third_party/aom/build/cmake/generate_exports.cmake
index 4dce3a671..7ab5aaef8 100644
--- a/third_party/aom/build/cmake/generate_exports.cmake
+++ b/third_party/aom/build/cmake/generate_exports.cmake
@@ -24,9 +24,7 @@ include("${AOM_ROOT}/build/cmake/exports_sources.cmake")
if("${AOM_TARGET_SYSTEM}" STREQUAL "Darwin")
set(symbol_prefix "_")
elseif("${AOM_TARGET_SYSTEM}" MATCHES "Windows\|MSYS" AND AOM_MSVC)
- set(symbol_prefix "_")
- file(WRITE "${AOM_SYM_FILE}" "LIBRARY libaom INITINSTANCE TERMINSTANCE\n"
- "DATA MULTIPLE NONSHARED\n" "EXPORTS\n")
+ file(WRITE "${AOM_SYM_FILE}" "LIBRARY aom\n" "EXPORTS\n")
else()
set(symbol_suffix ";")
endif()
@@ -35,11 +33,10 @@ set(aom_sym_file "${AOM_SYM_FILE}")
if("${AOM_TARGET_SYSTEM}" STREQUAL "Darwin")
file(REMOVE "${aom_sym_file}")
-elseif("${AOM_TARGET_SYSTEM}" MATCHES "Windows\|MSYS")
- file(WRITE "${aom_sym_file}" "LIBRARY libaom INITINSTANCE TERMINSTANCE\n"
- "DATA MULTIPLE NONSHARED\n" "EXPORTS\n")
+elseif("${AOM_TARGET_SYSTEM}" MATCHES "Windows\|MSYS" AND AOM_MSVC)
+ file(WRITE "${aom_sym_file}" "LIBRARY aom\n" "EXPORTS\n")
else()
- file(WRITE "${aom_sym_file}" "{ global:\n")
+ file(WRITE "${aom_sym_file}" "{\nglobal:\n")
endif()
foreach(export_file ${AOM_EXPORTS_SOURCES})
@@ -50,11 +47,20 @@ endforeach()
foreach(exported_symbol ${exported_symbols})
string(STRIP "${exported_symbol}" exported_symbol)
+ if("${AOM_TARGET_SYSTEM}" MATCHES "Windows\|MSYS" AND AOM_MSVC)
+ string(SUBSTRING ${exported_symbol} 0 4 export_type)
+ string(COMPARE EQUAL "${export_type}" "data" is_data)
+ if(is_data)
+ set(symbol_suffix " DATA")
+ else()
+ set(symbol_suffix "")
+ endif()
+ endif()
string(REGEX REPLACE "text \|data " "" "exported_symbol" "${exported_symbol}")
- set(exported_symbol "${symbol_prefix}${exported_symbol}${symbol_suffix}")
+ set(exported_symbol " ${symbol_prefix}${exported_symbol}${symbol_suffix}")
file(APPEND "${aom_sym_file}" "${exported_symbol}\n")
endforeach()
if("${aom_sym_file}" MATCHES "ver$")
- file(APPEND "${aom_sym_file}" " };")
+ file(APPEND "${aom_sym_file}" " \nlocal:\n *;\n};")
endif()
diff --git a/third_party/aom/build/cmake/ios-Info.plist b/third_party/aom/build/cmake/ios-Info.plist
new file mode 100644
index 000000000..300e3e310
--- /dev/null
+++ b/third_party/aom/build/cmake/ios-Info.plist
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+ <key>CFBundleDevelopmentRegion</key>
+ <string>en</string>
+ <key>CFBundleExecutable</key>
+ <string>AOM</string>
+ <key>CFBundleIdentifier</key>
+ <string>org.webmproject.AOM</string>
+ <key>CFBundleInfoDictionaryVersion</key>
+ <string>6.0</string>
+ <key>CFBundleName</key>
+ <string>AOM</string>
+ <key>CFBundlePackageType</key>
+ <string>FMWK</string>
+ <key>CFBundleShortVersionString</key>
+ <string>${VERSION}</string>
+ <key>CFBundleSignature</key>
+ <string>????</string>
+ <key>CFBundleSupportedPlatforms</key>
+ <array>
+ <string>iPhoneOS</string>
+ </array>
+ <key>CFBundleVersion</key>
+ <string>${VERSION}</string>
+ <key>MinimumOSVersion</key>
+ <string>${IOS_VERSION_MIN}</string>
+ <key>UIDeviceFamily</key>
+ <array>
+ <integer>1</integer>
+ <integer>2</integer>
+ </array>
+ <key>AOMFullVersion</key>
+ <string>${FULLVERSION}</string>
+</dict>
+</plist>
diff --git a/third_party/aom/build/cmake/iosbuild.sh b/third_party/aom/build/cmake/iosbuild.sh
new file mode 100755
index 000000000..167ece200
--- /dev/null
+++ b/third_party/aom/build/cmake/iosbuild.sh
@@ -0,0 +1,384 @@
+#!/bin/sh
+## Copyright (c) 2016, Alliance for Open Media. All rights reserved
+##
+## This source code is subject to the terms of the BSD 2 Clause License and
+## the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+## was not distributed with this source code in the LICENSE file, you can
+## obtain it at www.aomedia.org/license/software. If the Alliance for Open
+## Media Patent License 1.0 was not distributed with this source code in the
+## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+##
+## This script generates 'AOM.framework'. An iOS app can encode and decode AVx
+## video by including 'AOM.framework'.
+##
+## Run iosbuild.sh to create 'AOM.framework' in the current directory.
+##
+set -e
+devnull='> /dev/null 2>&1'
+
+BUILD_ROOT="_iosbuild"
+CONFIGURE_ARGS="--disable-docs
+ --disable-examples
+ --disable-libyuv
+ --disable-unit-tests"
+DIST_DIR="_dist"
+FRAMEWORK_DIR="AOM.framework"
+FRAMEWORK_LIB="AOM.framework/AOM"
+HEADER_DIR="${FRAMEWORK_DIR}/Headers/aom"
+SCRIPT_DIR=$(dirname "$0")
+LIBAOM_SOURCE_DIR=$(cd ${SCRIPT_DIR}/../..; pwd)
+LIPO=$(xcrun -sdk iphoneos${SDK} -find lipo)
+ORIG_PWD="$(pwd)"
+ARM_TARGETS="arm64-darwin-gcc
+ armv7-darwin-gcc
+ armv7s-darwin-gcc"
+SIM_TARGETS="x86-iphonesimulator-gcc
+ x86_64-iphonesimulator-gcc"
+OSX_TARGETS="x86-darwin16-gcc
+ x86_64-darwin16-gcc"
+TARGETS="${ARM_TARGETS} ${SIM_TARGETS}"
+
+# Configures for the target specified by $1, and invokes make with the dist
+# target using $ as the distribution output directory.
+build_target() {
+ local target="$1"
+ local old_pwd="$(pwd)"
+ local target_specific_flags=""
+
+ vlog "***Building target: ${target}***"
+
+ case "${target}" in
+ x86-*)
+ target_specific_flags="--enable-pic"
+ vlog "Enabled PIC for ${target}"
+ ;;
+ esac
+
+ mkdir "${target}"
+ cd "${target}"
+ # TODO(tomfinegan@google.com): switch to cmake.
+ eval "${LIBAOM_SOURCE_DIR}/configure" --target="${target}" \
+ ${CONFIGURE_ARGS} ${EXTRA_CONFIGURE_ARGS} ${target_specific_flags} \
+ ${devnull}
+ export DIST_DIR
+ eval make dist ${devnull}
+ cd "${old_pwd}"
+
+ vlog "***Done building target: ${target}***"
+}
+
+# Returns the preprocessor symbol for the target specified by $1.
+target_to_preproc_symbol() {
+ target="$1"
+ case "${target}" in
+ arm64-*)
+ echo "__aarch64__"
+ ;;
+ armv7-*)
+ echo "__ARM_ARCH_7A__"
+ ;;
+ armv7s-*)
+ echo "__ARM_ARCH_7S__"
+ ;;
+ x86-*)
+ echo "__i386__"
+ ;;
+ x86_64-*)
+ echo "__x86_64__"
+ ;;
+ *)
+ echo "#error ${target} unknown/unsupported"
+ return 1
+ ;;
+ esac
+}
+
+# Create a aom_config.h shim that, based on preprocessor settings for the
+# current target CPU, includes the real aom_config.h for the current target.
+# $1 is the list of targets.
+create_aom_framework_config_shim() {
+ local targets="$1"
+ local config_file="${HEADER_DIR}/aom_config.h"
+ local preproc_symbol=""
+ local target=""
+ local include_guard="AOM_FRAMEWORK_HEADERS_AOM_AOM_CONFIG_H_"
+
+ local file_header="/*
+ * Copyright (c) $(date +%Y), Alliance for Open Media. All rights reserved.
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+/* GENERATED FILE: DO NOT EDIT! */
+
+#ifndef ${include_guard}
+#define ${include_guard}
+
+#if defined"
+
+ printf "%s" "${file_header}" > "${config_file}"
+ for target in ${targets}; do
+ preproc_symbol=$(target_to_preproc_symbol "${target}")
+ printf " ${preproc_symbol}\n" >> "${config_file}"
+ printf "#define AOM_FRAMEWORK_TARGET \"${target}\"\n" >> "${config_file}"
+ printf "#include \"AOM/aom/${target}/aom_config.h\"\n" >> "${config_file}"
+ printf "#elif defined" >> "${config_file}"
+ mkdir "${HEADER_DIR}/${target}"
+ cp -p "${BUILD_ROOT}/${target}/aom_config.h" "${HEADER_DIR}/${target}"
+ done
+
+ # Consume the last line of output from the loop: We don't want it.
+ sed -i '' -e '$d' "${config_file}"
+
+ printf "#endif\n\n" >> "${config_file}"
+ printf "#endif // ${include_guard}" >> "${config_file}"
+}
+
+# Verifies that $FRAMEWORK_LIB fat library contains requested builds.
+verify_framework_targets() {
+ local requested_cpus=""
+ local cpu=""
+
+ # Extract CPU from full target name.
+ for target; do
+ cpu="${target%%-*}"
+ if [ "${cpu}" = "x86" ]; then
+ # lipo -info outputs i386 for libaom x86 targets.
+ cpu="i386"
+ fi
+ requested_cpus="${requested_cpus}${cpu} "
+ done
+
+ # Get target CPUs present in framework library.
+ local targets_built=$(${LIPO} -info ${FRAMEWORK_LIB})
+
+ # $LIPO -info outputs a string like the following:
+ # Architectures in the fat file: $FRAMEWORK_LIB <architectures>
+ # Capture only the architecture strings.
+ targets_built=${targets_built##*: }
+
+ # Sort CPU strings to make the next step a simple string compare.
+ local actual=$(echo ${targets_built} | tr " " "\n" | sort | tr "\n" " ")
+ local requested=$(echo ${requested_cpus} | tr " " "\n" | sort | tr "\n" " ")
+
+ vlog "Requested ${FRAMEWORK_LIB} CPUs: ${requested}"
+ vlog "Actual ${FRAMEWORK_LIB} CPUs: ${actual}"
+
+ if [ "${requested}" != "${actual}" ]; then
+ elog "Actual ${FRAMEWORK_LIB} targets do not match requested target list."
+ elog " Requested target CPUs: ${requested}"
+ elog " Actual target CPUs: ${actual}"
+ return 1
+ fi
+}
+
+# Configures and builds each target specified by $1, and then builds
+# AOM.framework.
+build_framework() {
+ local lib_list=""
+ local targets="$1"
+ local target=""
+ local target_dist_dir=""
+
+ # Clean up from previous build(s).
+ rm -rf "${BUILD_ROOT}" "${FRAMEWORK_DIR}"
+
+ # Create output dirs.
+ mkdir -p "${BUILD_ROOT}"
+ mkdir -p "${HEADER_DIR}"
+
+ cd "${BUILD_ROOT}"
+
+ for target in ${targets}; do
+ build_target "${target}"
+ target_dist_dir="${BUILD_ROOT}/${target}/${DIST_DIR}"
+ if [ "${ENABLE_SHARED}" = "yes" ]; then
+ local suffix="dylib"
+ else
+ local suffix="a"
+ fi
+ lib_list="${lib_list} ${target_dist_dir}/lib/libaom.${suffix}"
+ done
+
+ cd "${ORIG_PWD}"
+
+ # The basic libaom API includes are all the same; just grab the most recent
+ # set.
+ cp -p "${target_dist_dir}"/include/aom/* "${HEADER_DIR}"
+
+ # Build the fat library.
+ ${LIPO} -create ${lib_list} -output ${FRAMEWORK_DIR}/AOM
+
+ # Create the aom_config.h shim that allows usage of aom_config.h from
+ # within AOM.framework.
+ create_aom_framework_config_shim "${targets}"
+
+ # Copy in aom_version.h.
+ cp -p "${BUILD_ROOT}/${target}/aom_version.h" "${HEADER_DIR}"
+
+ if [ "${ENABLE_SHARED}" = "yes" ]; then
+ # Adjust the dylib's name so dynamic linking in apps works as expected.
+ install_name_tool -id '@rpath/AOM.framework/AOM' ${FRAMEWORK_DIR}/AOM
+
+ # Copy in Info.plist.
+ cat "${SCRIPT_DIR}/ios-Info.plist" \
+ | sed "s/\${FULLVERSION}/${FULLVERSION}/g" \
+ | sed "s/\${VERSION}/${VERSION}/g" \
+ | sed "s/\${IOS_VERSION_MIN}/${IOS_VERSION_MIN}/g" \
+ > "${FRAMEWORK_DIR}/Info.plist"
+ fi
+
+ # Confirm AOM.framework/AOM contains the targets requested.
+ verify_framework_targets ${targets}
+
+ vlog "Created fat library ${FRAMEWORK_LIB} containing:"
+ for lib in ${lib_list}; do
+ vlog " $(echo ${lib} | awk -F / '{print $2, $NF}')"
+ done
+}
+
+# Trap function. Cleans up the subtree used to build all targets contained in
+# $TARGETS.
+cleanup() {
+ local res=$?
+ cd "${ORIG_PWD}"
+
+ if [ $res -ne 0 ]; then
+ elog "build exited with error ($res)"
+ fi
+
+ if [ "${PRESERVE_BUILD_OUTPUT}" != "yes" ]; then
+ rm -rf "${BUILD_ROOT}"
+ fi
+}
+
+print_list() {
+ local indent="$1"
+ shift
+ local list="$@"
+ for entry in ${list}; do
+ echo "${indent}${entry}"
+ done
+}
+
+iosbuild_usage() {
+cat << EOF
+ Usage: ${0##*/} [arguments]
+ --help: Display this message and exit.
+ --enable-shared: Build a dynamic framework for use on iOS 8 or later.
+ --extra-configure-args <args>: Extra args to pass when configuring libaom.
+ --macosx: Uses darwin16 targets instead of iphonesimulator targets for x86
+ and x86_64. Allows linking to framework when builds target MacOSX
+ instead of iOS.
+ --preserve-build-output: Do not delete the build directory.
+ --show-build-output: Show output from each library build.
+ --targets <targets>: Override default target list. Defaults:
+$(print_list " " ${TARGETS})
+ --test-link: Confirms all targets can be linked. Functionally identical to
+ passing --enable-examples via --extra-configure-args.
+ --verbose: Output information about the environment and each stage of the
+ build.
+EOF
+}
+
+elog() {
+ echo "${0##*/} failed because: $@" 1>&2
+}
+
+vlog() {
+ if [ "${VERBOSE}" = "yes" ]; then
+ echo "$@"
+ fi
+}
+
+trap cleanup EXIT
+
+# Parse the command line.
+while [ -n "$1" ]; do
+ case "$1" in
+ --extra-configure-args)
+ EXTRA_CONFIGURE_ARGS="$2"
+ shift
+ ;;
+ --help)
+ iosbuild_usage
+ exit
+ ;;
+ --enable-shared)
+ ENABLE_SHARED=yes
+ ;;
+ --preserve-build-output)
+ PRESERVE_BUILD_OUTPUT=yes
+ ;;
+ --show-build-output)
+ devnull=
+ ;;
+ --test-link)
+ EXTRA_CONFIGURE_ARGS="${EXTRA_CONFIGURE_ARGS} --enable-examples"
+ ;;
+ --targets)
+ TARGETS="$2"
+ shift
+ ;;
+ --macosx)
+ TARGETS="${ARM_TARGETS} ${OSX_TARGETS}"
+ ;;
+ --verbose)
+ VERBOSE=yes
+ ;;
+ *)
+ iosbuild_usage
+ exit 1
+ ;;
+ esac
+ shift
+done
+
+if [ "${ENABLE_SHARED}" = "yes" ]; then
+ CONFIGURE_ARGS="--enable-shared ${CONFIGURE_ARGS}"
+fi
+
+FULLVERSION=$("${SCRIPT_DIR}"/version.sh --bare "${LIBAOM_SOURCE_DIR}")
+VERSION=$(echo "${FULLVERSION}" | sed -E 's/^v([0-9]+\.[0-9]+\.[0-9]+).*$/\1/')
+
+if [ "$ENABLE_SHARED" = "yes" ]; then
+ IOS_VERSION_OPTIONS="--enable-shared"
+ IOS_VERSION_MIN="8.0"
+else
+ IOS_VERSION_OPTIONS=""
+ IOS_VERSION_MIN="6.0"
+fi
+
+if [ "${VERBOSE}" = "yes" ]; then
+cat << EOF
+ BUILD_ROOT=${BUILD_ROOT}
+ DIST_DIR=${DIST_DIR}
+ CONFIGURE_ARGS=${CONFIGURE_ARGS}
+ EXTRA_CONFIGURE_ARGS=${EXTRA_CONFIGURE_ARGS}
+ FRAMEWORK_DIR=${FRAMEWORK_DIR}
+ FRAMEWORK_LIB=${FRAMEWORK_LIB}
+ HEADER_DIR=${HEADER_DIR}
+ LIBAOM_SOURCE_DIR=${LIBAOM_SOURCE_DIR}
+ LIPO=${LIPO}
+ MAKEFLAGS=${MAKEFLAGS}
+ ORIG_PWD=${ORIG_PWD}
+ PRESERVE_BUILD_OUTPUT=${PRESERVE_BUILD_OUTPUT}
+ TARGETS="$(print_list "" ${TARGETS})"
+ ENABLE_SHARED=${ENABLE_SHARED}
+ OSX_TARGETS="${OSX_TARGETS}"
+ SIM_TARGETS="${SIM_TARGETS}"
+ SCRIPT_DIR="${SCRIPT_DIR}"
+ FULLVERSION="${FULLVERSION}"
+ VERSION="${VERSION}"
+ IOS_VERSION_MIN="${IOS_VERSION_MIN}"
+EOF
+fi
+
+build_framework "${TARGETS}"
+echo "Successfully built '${FRAMEWORK_DIR}' for:"
+print_list "" ${TARGETS}
diff --git a/third_party/aom/build/cmake/rtcd.pl b/third_party/aom/build/cmake/rtcd.pl
new file mode 100755
index 000000000..46e06907c
--- /dev/null
+++ b/third_party/aom/build/cmake/rtcd.pl
@@ -0,0 +1,467 @@
+#!/usr/bin/env perl
+##
+## Copyright (c) 2017, Alliance for Open Media. All rights reserved
+##
+## This source code is subject to the terms of the BSD 2 Clause License and
+## the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+## was not distributed with this source code in the LICENSE file, you can
+## obtain it at www.aomedia.org/license/software. If the Alliance for Open
+## Media Patent License 1.0 was not distributed with this source code in the
+## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+##
+no strict 'refs';
+use warnings;
+use Getopt::Long;
+Getopt::Long::Configure("auto_help") if $Getopt::Long::VERSION > 2.32;
+
+my %ALL_FUNCS = ();
+my @ALL_ARCHS;
+my @ALL_FORWARD_DECLS;
+my @REQUIRES;
+
+my %opts = ();
+my %disabled = ();
+my %required = ();
+
+my @argv;
+foreach (@ARGV) {
+ $disabled{$1} = 1, next if /--disable-(.*)/;
+ $required{$1} = 1, next if /--require-(.*)/;
+ push @argv, $_;
+}
+
+# NB: use GetOptions() instead of GetOptionsFromArray() for compatibility.
+@ARGV = @argv;
+GetOptions(
+ \%opts,
+ 'arch=s',
+ 'sym=s',
+ 'config=s',
+);
+
+foreach my $opt (qw/arch config/) {
+ if (!defined($opts{$opt})) {
+ warn "--$opt is required!\n";
+ Getopt::Long::HelpMessage('-exit' => 1);
+ }
+}
+
+foreach my $defs_file (@ARGV) {
+ if (!-f $defs_file) {
+ warn "$defs_file: $!\n";
+ Getopt::Long::HelpMessage('-exit' => 1);
+ }
+}
+
+open CONFIG_FILE, $opts{config} or
+ die "Error opening config file '$opts{config}': $!\n";
+
+my %config = ();
+while (<CONFIG_FILE>) {
+ next if !/^#define\s+(?:CONFIG_|HAVE_)/;
+ chomp;
+ my @line_components = split /\s/;
+ scalar @line_components > 2 or
+ die "Invalid input passed to rtcd.pl via $opts{config}.";
+ # $line_components[0] = #define
+ # $line_components[1] = flag name (CONFIG_SOMETHING or HAVE_SOMETHING)
+ # $line_components[2] = flag value (0 or 1)
+ $config{$line_components[1]} = "$line_components[2]" eq "1" ? "yes" : "";
+}
+close CONFIG_FILE;
+
+#
+# Routines for the RTCD DSL to call
+#
+sub aom_config($) {
+ return (defined $config{$_[0]}) ? $config{$_[0]} : "";
+}
+
+sub specialize {
+ if (@_ <= 1) {
+ die "'specialize' must be called with a function name and at least one ",
+ "architecture ('C' is implied): \n@_\n";
+ }
+ my $fn=$_[0];
+ shift;
+ foreach my $opt (@_) {
+ eval "\$${fn}_${opt}=${fn}_${opt}";
+ }
+}
+
+sub add_proto {
+ my $fn = splice(@_, -2, 1);
+ $ALL_FUNCS{$fn} = \@_;
+ specialize $fn, "c";
+}
+
+sub require {
+ foreach my $fn (keys %ALL_FUNCS) {
+ foreach my $opt (@_) {
+ my $ofn = eval "\$${fn}_${opt}";
+ next if !$ofn;
+
+ # if we already have a default, then we can disable it, as we know
+ # we can do better.
+ my $best = eval "\$${fn}_default";
+ if ($best) {
+ my $best_ofn = eval "\$${best}";
+ if ($best_ofn && "$best_ofn" ne "$ofn") {
+ eval "\$${best}_link = 'false'";
+ }
+ }
+ eval "\$${fn}_default=${fn}_${opt}";
+ eval "\$${fn}_${opt}_link='true'";
+ }
+ }
+}
+
+sub forward_decls {
+ push @ALL_FORWARD_DECLS, @_;
+}
+
+#
+# Include the user's directives
+#
+foreach my $f (@ARGV) {
+ open FILE, "<", $f or die "cannot open $f: $!\n";
+ my $contents = join('', <FILE>);
+ close FILE;
+ eval $contents or warn "eval failed: $@\n";
+}
+
+#
+# Process the directives according to the command line
+#
+sub process_forward_decls() {
+ foreach (@ALL_FORWARD_DECLS) {
+ $_->();
+ }
+}
+
+sub determine_indirection {
+ aom_config("CONFIG_RUNTIME_CPU_DETECT") eq "yes" or &require(@ALL_ARCHS);
+ foreach my $fn (keys %ALL_FUNCS) {
+ my $n = "";
+ my @val = @{$ALL_FUNCS{$fn}};
+ my $args = pop @val;
+ my $rtyp = "@val";
+ my $dfn = eval "\$${fn}_default";
+ $dfn = eval "\$${dfn}";
+ foreach my $opt (@_) {
+ my $ofn = eval "\$${fn}_${opt}";
+ next if !$ofn;
+ my $link = eval "\$${fn}_${opt}_link";
+ next if $link && $link eq "false";
+ $n .= "x";
+ }
+ if ($n eq "x") {
+ eval "\$${fn}_indirect = 'false'";
+ } else {
+ eval "\$${fn}_indirect = 'true'";
+ }
+ }
+}
+
+sub declare_function_pointers {
+ foreach my $fn (sort keys %ALL_FUNCS) {
+ my @val = @{$ALL_FUNCS{$fn}};
+ my $args = pop @val;
+ my $rtyp = "@val";
+ my $dfn = eval "\$${fn}_default";
+ $dfn = eval "\$${dfn}";
+ foreach my $opt (@_) {
+ my $ofn = eval "\$${fn}_${opt}";
+ next if !$ofn;
+ print "$rtyp ${ofn}($args);\n";
+ }
+ if (eval "\$${fn}_indirect" eq "false") {
+ print "#define ${fn} ${dfn}\n";
+ } else {
+ print "RTCD_EXTERN $rtyp (*${fn})($args);\n";
+ }
+ print "\n";
+ }
+}
+
+sub set_function_pointers {
+ foreach my $fn (sort keys %ALL_FUNCS) {
+ my @val = @{$ALL_FUNCS{$fn}};
+ my $args = pop @val;
+ my $rtyp = "@val";
+ my $dfn = eval "\$${fn}_default";
+ $dfn = eval "\$${dfn}";
+ if (eval "\$${fn}_indirect" eq "true") {
+ print " $fn = $dfn;\n";
+ foreach my $opt (@_) {
+ my $ofn = eval "\$${fn}_${opt}";
+ next if !$ofn;
+ next if "$ofn" eq "$dfn";
+ my $link = eval "\$${fn}_${opt}_link";
+ next if $link && $link eq "false";
+ my $cond = eval "\$have_${opt}";
+ print " if (${cond}) $fn = $ofn;\n"
+ }
+ }
+ }
+}
+
+sub filter {
+ my @filtered;
+ foreach (@_) { push @filtered, $_ unless $disabled{$_}; }
+ return @filtered;
+}
+
+#
+# Helper functions for generating the arch specific RTCD files
+#
+sub common_top() {
+ my $include_guard = uc($opts{sym})."_H_";
+ print <<EOF;
+// This file is generated. Do not edit.
+#ifndef ${include_guard}
+#define ${include_guard}
+
+#ifdef RTCD_C
+#define RTCD_EXTERN
+#else
+#define RTCD_EXTERN extern
+#endif
+
+EOF
+
+process_forward_decls();
+print <<EOF;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+EOF
+declare_function_pointers("c", @ALL_ARCHS);
+
+print <<EOF;
+void $opts{sym}(void);
+
+EOF
+}
+
+sub common_bottom() {
+ print <<EOF;
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif
+EOF
+}
+
+sub x86() {
+ determine_indirection("c", @ALL_ARCHS);
+
+ # Assign the helper variable for each enabled extension
+ foreach my $opt (@ALL_ARCHS) {
+ my $opt_uc = uc $opt;
+ eval "\$have_${opt}=\"flags & HAS_${opt_uc}\"";
+ }
+
+ common_top;
+ print <<EOF;
+#ifdef RTCD_C
+#include "aom_ports/x86.h"
+static void setup_rtcd_internal(void)
+{
+ int flags = x86_simd_caps();
+
+ (void)flags;
+
+EOF
+
+ set_function_pointers("c", @ALL_ARCHS);
+
+ print <<EOF;
+}
+#endif
+EOF
+ common_bottom;
+}
+
+sub arm() {
+ determine_indirection("c", @ALL_ARCHS);
+
+ # Assign the helper variable for each enabled extension
+ foreach my $opt (@ALL_ARCHS) {
+ my $opt_uc = uc $opt;
+ eval "\$have_${opt}=\"flags & HAS_${opt_uc}\"";
+ }
+
+ common_top;
+ print <<EOF;
+#include "config/aom_config.h"
+
+#ifdef RTCD_C
+#include "aom_ports/arm.h"
+static void setup_rtcd_internal(void)
+{
+ int flags = aom_arm_cpu_caps();
+
+ (void)flags;
+
+EOF
+
+ set_function_pointers("c", @ALL_ARCHS);
+
+ print <<EOF;
+}
+#endif
+EOF
+ common_bottom;
+}
+
+sub mips() {
+ determine_indirection("c", @ALL_ARCHS);
+
+ # Assign the helper variable for each enabled extension
+ foreach my $opt (@ALL_ARCHS) {
+ my $opt_uc = uc $opt;
+ eval "\$have_${opt}=\"flags & HAS_${opt_uc}\"";
+ }
+
+ common_top;
+
+ print <<EOF;
+#include "config/aom_config.h"
+
+#ifdef RTCD_C
+static void setup_rtcd_internal(void)
+{
+EOF
+
+ set_function_pointers("c", @ALL_ARCHS);
+
+ print <<EOF;
+#if HAVE_DSPR2
+void aom_dsputil_static_init();
+aom_dsputil_static_init();
+#endif
+}
+#endif
+EOF
+ common_bottom;
+}
+
+sub ppc() {
+ determine_indirection("c", @ALL_ARCHS);
+
+ # Assign the helper variable for each enabled extension
+ foreach my $opt (@ALL_ARCHS) {
+ my $opt_uc = uc $opt;
+ eval "\$have_${opt}=\"flags & HAS_${opt_uc}\"";
+ }
+
+ common_top;
+
+ print <<EOF;
+#include "config/aom_config.h"
+
+#ifdef RTCD_C
+#include "aom_ports/ppc.h"
+static void setup_rtcd_internal(void)
+{
+ int flags = ppc_simd_caps();
+
+ (void)flags;
+
+EOF
+
+ set_function_pointers("c", @ALL_ARCHS);
+
+ print <<EOF;
+}
+#endif
+EOF
+ common_bottom;
+}
+
+sub unoptimized() {
+ determine_indirection "c";
+ common_top;
+ print <<EOF;
+#include "config/aom_config.h"
+
+#ifdef RTCD_C
+static void setup_rtcd_internal(void)
+{
+EOF
+
+ set_function_pointers "c";
+
+ print <<EOF;
+}
+#endif
+EOF
+ common_bottom;
+}
+
+#
+# Main Driver
+#
+
+&require("c");
+&require(keys %required);
+if ($opts{arch} eq 'x86') {
+ @ALL_ARCHS = filter(qw/mmx sse sse2 sse3 ssse3 sse4_1 sse4_2 avx avx2/);
+ x86;
+} elsif ($opts{arch} eq 'x86_64') {
+ @ALL_ARCHS = filter(qw/mmx sse sse2 sse3 ssse3 sse4_1 sse4_2 avx avx2/);
+ @REQUIRES = filter(qw/mmx sse sse2/);
+ &require(@REQUIRES);
+ x86;
+} elsif ($opts{arch} eq 'mips32' || $opts{arch} eq 'mips64') {
+ @ALL_ARCHS = filter("$opts{arch}");
+ if (aom_config("HAVE_DSPR2") eq "yes") {
+ @ALL_ARCHS = filter("$opts{arch}", qw/dspr2/);
+ } elsif (aom_config("HAVE_MSA") eq "yes") {
+ @ALL_ARCHS = filter("$opts{arch}", qw/msa/);
+ }
+ mips;
+} elsif ($opts{arch} =~ /armv7\w?/) {
+ @ALL_ARCHS = filter(qw/neon/);
+ arm;
+} elsif ($opts{arch} eq 'armv8' || $opts{arch} eq 'arm64' ) {
+ @ALL_ARCHS = filter(qw/neon/);
+ &require("neon");
+ arm;
+} elsif ($opts{arch} eq 'ppc') {
+ @ALL_ARCHS = filter(qw/vsx/);
+ ppc;
+} else {
+ unoptimized;
+}
+
+__END__
+
+=head1 NAME
+
+rtcd -
+
+=head1 SYNOPSIS
+
+Usage: rtcd.pl [options] FILE
+
+See 'perldoc rtcd.pl' for more details.
+
+=head1 DESCRIPTION
+
+Reads the Run Time CPU Detections definitions from FILE and generates a
+C header file on stdout.
+
+=head1 OPTIONS
+
+Options:
+ --arch=ARCH Architecture to generate defs for (required)
+ --disable-EXT Disable support for EXT extensions
+ --require-EXT Require support for EXT extensions
+ --sym=SYMBOL Unique symbol to use for RTCD initialization function
+ --config=FILE Path to file containing C preprocessor directives to parse
diff --git a/third_party/aom/build/cmake/util.cmake b/third_party/aom/build/cmake/util.cmake
index a0c705691..b70ec4013 100644
--- a/third_party/aom/build/cmake/util.cmake
+++ b/third_party/aom/build/cmake/util.cmake
@@ -13,19 +13,21 @@ if(AOM_BUILD_CMAKE_UTIL_CMAKE_)
endif() # AOM_BUILD_CMAKE_UTIL_CMAKE_
set(AOM_BUILD_CMAKE_UTIL_CMAKE_ 1)
+# Directory where generated sources will be written.
+set(AOM_GEN_SRC_DIR "${AOM_CONFIG_DIR}/gen_src")
+
# Creates dummy source file in $AOM_CONFIG_DIR named $basename.$extension and
# returns the full path to the dummy source file via the $out_file_path
# parameter.
-function(create_dummy_source_file basename extension out_file_path)
- set(dummy_source_file "${AOM_CONFIG_DIR}/${basename}_dummy.${extension}")
+macro(create_dummy_source_file basename extension out_file_path)
+ set(dummy_source_file "${AOM_GEN_SRC_DIR}/${basename}_dummy.${extension}")
file(
WRITE
"${dummy_source_file}" "// Generated file. DO NOT EDIT!\n"
"// ${target_name} needs a ${extension} file to force link language, \n"
"// or to silence a harmless CMake warning: Ignore me.\n"
"void ${target_name}_dummy_function(void) {}\n")
- set(${out_file_path} ${dummy_source_file} PARENT_SCOPE)
-endfunction()
+endmacro()
# Convenience function for adding a dummy source file to $target_name using
# $extension as the file extension. Wraps create_dummy_source_file().
@@ -86,3 +88,84 @@ function(set_compiler_launcher launcher_flag launcher_name)
endif()
endfunction()
+# Sentinel value used to detect when a variable has been set via the -D argument
+# passed to CMake on the command line.
+set(cmake_cmdline_helpstring "No help, variable specified on the command line.")
+
+# Wrapper macro for set() that does some book keeping to help with storage of
+# build configuration information.
+#
+# Sets the default value for variable $name when the value of $name has not
+# already been set via the CMake command line.
+#
+# The names of variables defaulted through this macro are added to
+# $AOM_CONFIG_VARS to facilitate build logging and diagnostics.
+macro(set_aom_detect_var name value type helpstring)
+ unset(list_index)
+ list(FIND AOM_DETECT_VARS ${name} list_index)
+ if(${list_index} EQUAL -1)
+ list(APPEND AOM_DETECT_VARS ${name})
+ endif()
+
+ # Update the variable only when it does not carry the CMake assigned help
+ # string for variables specified via the command line.
+ unset(cache_helpstring)
+ get_property(cache_helpstring CACHE ${name} PROPERTY HELPSTRING)
+ if(NOT "${cache_helpstring}" STREQUAL "${cmake_cmdline_helpstring}")
+ set(${name} ${value} CACHE ${type} "${helpstring}")
+ mark_as_advanced(${name})
+ else()
+ message(
+ WARNING
+ "${name} has been set by CMake, but it may be overridden by the build "
+ "system during environment detection")
+ endif()
+endmacro()
+
+# Wrapper macro for set() that does some book keeping to help with storage of
+# build configuration information.
+#
+# Sets the default value for variable $name when the value of $name has not
+# already been set via the CMake command line.
+#
+# The names of variables defaulted through this macro are added to
+# $AOM_CONFIG_VARS to facilitate build logging and diagnostics.
+macro(set_aom_config_var name value type helpstring)
+ unset(list_index)
+ list(FIND AOM_CONFIG_VARS ${name} list_index)
+ if(${list_index} EQUAL -1)
+ list(APPEND AOM_CONFIG_VARS ${name})
+ endif()
+
+ # Update the variable only when it does not carry the CMake assigned help
+ # string for variables specified via the command line.
+ unset(cache_helpstring)
+ get_property(cache_helpstring CACHE ${name} PROPERTY HELPSTRING)
+ if(NOT "${cache_helpstring}" STREQUAL "${cmake_cmdline_helpstring}")
+ set(${name} ${value} CACHE ${type} "${helpstring}")
+ endif()
+endmacro()
+
+# Wrapper macro for option() that does some book keeping to help with storage of
+# build configuration information.
+#
+# Sets the default value for variable $name when the value of $name has not
+# already been set via the CMake command line.
+#
+# The names of variables defaulted through this macro are added to
+# $AOM_OPTION_VARS to facilitate build logging and diagnostics.
+macro(set_aom_option_var name helpstring value)
+ unset(list_index)
+ list(FIND AOM_OPTION_VARS ${name} list_index)
+ if(${list_index} EQUAL -1)
+ list(APPEND AOM_OPTION_VARS ${name})
+ endif()
+
+ # Update the variable only when it does not carry the CMake assigned help
+ # string for variables specified via the command line.
+ unset(cache_helpstring)
+ get_property(cache_helpstring CACHE ${name} PROPERTY HELPSTRING)
+ if(NOT "${cache_helpstring}" STREQUAL "${cmake_cmdline_helpstring}")
+ option(${name} "${helpstring}" ${value})
+ endif()
+endmacro()
diff --git a/third_party/aom/build/cmake/version.pl b/third_party/aom/build/cmake/version.pl
index 7c0608aeb..7d23f2b27 100755
--- a/third_party/aom/build/cmake/version.pl
+++ b/third_party/aom/build/cmake/version.pl
@@ -14,7 +14,7 @@ use warnings;
use 5.010;
use Getopt::Long;
-my $git_desc;
+my $git_desc = '';
my $version_data;
my $version_filename;
GetOptions('version_data=s' => \$version_data,
@@ -68,7 +68,7 @@ if (length($git_desc) > 0) {
open(my $version_file, '>', $version_filename) or
die("Cannot open $version_filename: $!");
-my $version_packed = "((VERSION_MAJOR<<16)|(VERSION_MINOR<<8)|(VERSION_PATCH))";
+my $version_packed = "((VERSION_MAJOR << 16) | (VERSION_MINOR << 8) | (VERSION_PATCH))";
my $year = (localtime)[5] + 1900;
my $lic_block = << "EOF";
/*
@@ -91,7 +91,8 @@ $lic_block
#define VERSION_MINOR $version_minor
#define VERSION_PATCH $version_patch
#define VERSION_EXTRA \"$version_extra\"
-#define VERSION_PACKED $version_packed
+#define VERSION_PACKED \\
+ $version_packed
#define VERSION_STRING_NOSP \"$git_desc\"
#define VERSION_STRING \" $git_desc\"
EOF
@@ -102,7 +103,8 @@ $lic_block
#define VERSION_MINOR $version_minor
#define VERSION_PATCH $version_patch
#define VERSION_EXTRA \"$version_extra\"
-#define VERSION_PACKED $version_packed
+#define VERSION_PACKED \\
+ $version_packed
#define VERSION_STRING_NOSP \"v$version_string\"
#define VERSION_STRING \" v$version_string\"
EOF