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meson.build
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meson.build
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project('openh264', ['c', 'cpp'],
version : '2.5.0',
meson_version : '>= 0.52',
default_options : [ 'warning_level=1',
'buildtype=debugoptimized' ])
major_version = '7'
cpp = meson.get_compiler('cpp')
inc = include_directories([
join_paths('codec', 'api', 'wels'),
join_paths('codec', 'common', 'inc'),
])
processing_inc = include_directories([
join_paths('codec', 'processing', 'interface'),
join_paths('codec', 'processing', 'src', 'common'),
join_paths('codec', 'processing', 'src', 'adaptivequantization'),
join_paths('codec', 'processing', 'src', 'downsample'),
join_paths('codec', 'processing', 'src', 'scrolldetection'),
join_paths('codec', 'processing', 'src', 'vaacalc'),
])
console_common_inc = include_directories([
join_paths('codec', 'console', 'common', 'inc')
])
decoder_inc = include_directories([
join_paths('codec', 'decoder', 'core', 'inc'),
join_paths('codec', 'decoder', 'plus', 'inc'),
])
encoder_inc = include_directories([
join_paths('codec', 'encoder', 'core', 'inc'),
join_paths('codec', 'encoder', 'plus', 'inc'),
])
system = host_machine.system()
cpu_family = host_machine.cpu_family()
supported_arguments = cpp.get_supported_arguments([
'-Wno-non-virtual-dtor',
'-Werror',
'-Wunused-but-set-variable',
'-Wno-strict-aliasing'])
add_project_arguments(supported_arguments, language: 'cpp')
deps = [dependency('threads')]
c_args = []
cpp_args = []
asm_args = []
asm_inc = []
casm_inc = []
cpp_lib = '-lstdc++'
libm_dep = cpp.find_library('m', required : false)
deps += [libm_dep]
if ['linux', 'android', 'ios', 'darwin'].contains(system)
asm_format32 = 'elf'
asm_format64 = 'elf64'
if ['ios', 'darwin'].contains(system)
asm_format32 = 'macho32'
asm_format64 = 'macho64'
endif
if cpu_family == 'x86'
asm_format = asm_format32
asm_args += ['-DX86_32', '-DHAVE_AVX2']
add_project_arguments('-DHAVE_AVX2', language: 'cpp')
add_project_arguments('-DHAVE_AVX2', '-DX86_ASM', '-DX86_32_ASM', language: 'c')
asm_inc = join_paths(meson.current_source_dir(), 'codec', 'common', 'x86', '')
elif cpu_family == 'x86_64'
asm_format = asm_format64
asm_args += ['-DUNIX64', '-DHAVE_AVX2']
add_project_arguments('-DHAVE_AVX2', language: 'cpp')
add_project_arguments('-DHAVE_AVX2', '-DX86_ASM', language: 'c')
asm_inc = join_paths(meson.current_source_dir(), 'codec', 'common', 'x86', '')
elif cpu_family == 'arm'
asm_format = asm_format32
add_project_arguments('-DHAVE_NEON', language: 'c')
add_project_arguments('-DHAVE_NEON', language: 'c')
casm_inc = include_directories(join_paths('codec', 'common', 'arm'))
elif cpu_family == 'aarch64'
asm_format = asm_format64
add_project_arguments('-DHAVE_NEON_AARCH64', language: 'c')
add_project_arguments('-DHAVE_NEON_AARCH64', language: 'cpp')
casm_inc = include_directories(join_paths('codec', 'common', 'arm64'))
elif cpu_family == 'loongarch32'
asm_format = asm_format32
add_project_arguments('-mlsx', '-DHAVE_LSX', '-mlasx', '-DHAVE_LASX', language: 'c')
add_project_arguments('-DHAVE_LSX', '-DHAVE_LASX', language: 'cpp')
casm_inc = include_directories(join_paths('codec', 'common', 'loongarch'))
elif cpu_family == 'loongarch64'
asm_format = asm_format64
add_project_arguments('-mlsx', '-DHAVE_LSX', '-mlasx', '-DHAVE_LASX', language: 'c')
add_project_arguments('-DHAVE_LSX', '-DHAVE_LASX', language: 'cpp')
casm_inc = include_directories(join_paths('codec', 'common', 'loongarch'))
elif cpu_family == 'riscv64'
# We dont't have riscv64-specific optimization for now.
asm_format = asm_format64
else
error('FIXME: unhandled CPU family @0@ for @1@'.format(cpu_family, system))
endif
if ['ios', 'darwin', 'android'].contains(system)
cpp_lib = '-lc++'
endif
elif system == 'windows'
if cpu_family == 'x86'
asm_format = 'win32'
asm_args += ['-DPREFIX', '-DX86_32']
asm_inc = join_paths(meson.current_source_dir(), 'codec', 'common', 'x86', '')
elif cpu_family == 'x86_64'
asm_format = 'win64'
asm_args += ['-DWIN64']
asm_inc = join_paths(meson.current_source_dir(), 'codec', 'common', 'x86', '')
elif cpu_family == 'arm'
if cpp.get_argument_syntax() == 'msvc'
asm_format = 'armasm'
asm_args += ['-nologo', '-DHAVE_NEON', '-ignore', '4509']
asm_cmds = ['armasm']
else
asm_format = 'clang'
asm_args += ['-DHAVE_NEON', '-mimplicit-it=always']
asm_cmds = cpp.cmd_array()
endif
asm_inc = join_paths(meson.current_source_dir(), 'codec', 'common', 'arm', '')
elif cpu_family == 'aarch64'
asm_format = 'armasm'
asm_args += ['-nologo', '-DHAVE_NEON_AARCH64']
asm_inc = join_paths(meson.current_source_dir(), 'codec', 'common', 'arm64', '')
else
error('FIXME: unhandled CPU family @0@ for Windows'.format(cpu_family))
endif
else
error('FIXME: Unhandled system @0@'.format(system))
endif
use_asm_gen = false
if cpu_family in ['x86', 'x86_64']
nasm = find_program('nasm')
use_asm_gen = true
asm_gen = generator(nasm,
output : '@[email protected]',
arguments : [
'-f', asm_format,
'-i', asm_inc,
'@INPUT@',
'-o', '@OUTPUT@'] + asm_args)
elif system == 'windows'
if cpu_family == 'arm'
# For ARM, gas-preprocessor is needed for converting the asm to be
# buildable as thumb even with Clang.
use_asm_gen = true
gasprep = find_program('gas-preprocessor.pl')
asm_gen = generator(gasprep,
output : '@[email protected]',
arguments : [
'-as-type', asm_format,
'-force-thumb',
'--'
] + asm_cmds + [
'-I' + asm_inc] + asm_args + [
'@INPUT@',
'-c', '-o', '@OUTPUT@'])
elif cpu_family == 'aarch64'
# For ARM64, Clang can build the assembly as-is without needing to use
# either gas-preprocessor or armasm64.
if cpp.get_argument_syntax() == 'msvc' and (cpp.get_id() != 'clang-cl' or meson.version().version_compare('<0.58.0'))
use_asm_gen = true
gasprep = find_program('gas-preprocessor.pl')
asm_gen = generator(gasprep,
output : '@[email protected]',
arguments : [
'-as-type', asm_format,
'-arch', 'aarch64',
'--',
'armasm64',
'-I' + asm_inc] + asm_args + [
'@INPUT@',
'-c', '-o', '@OUTPUT@'])
endif
else
# Windows only supports x86, x86_64, arm, arm64
error('unreachable code')
endif
endif
subdir ('codec')
subdir ('test')
libopenh264 = library('openh264',
link_whole: [libcommon, libprocessing, libencoder, libdecoder],
install: true,
soversion: major_version,
version: meson.project_version(),
vs_module_defs: 'openh264.def',
dependencies: deps)
openh264_dep = declare_dependency(
link_with: libopenh264,
include_directories: include_directories('codec/api'),
dependencies: deps)
pkg = import('pkgconfig')
pkg.generate(libopenh264,
description: 'OpenH264 is a codec library which supports H.264 encoding ' +
'and decoding. It is suitable for use in real time ' +
'applications such as WebRTC.',
)