gst-plugins-rs/meson.build

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project('gst-plugins-rs',
'rust',
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'c',
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version: '0.12.1',
meson_version : '>= 1.1')
# dependencies.py needs a toml parsing module
python = import('python').find_installation(modules: ['tomllib'], required: false)
if not python.found()
python = import('python').find_installation(modules: ['tomli'])
endif
fs = import('fs')
host_system = host_machine.system()
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if get_option('debug')
target = 'debug'
else
target = 'release'
endif
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cargo = find_program('cargo', version:'>=1.40')
cargo_wrapper = find_program('cargo_wrapper.py')
cargo_c = find_program('cargo-cbuild', version:'>=0.9.21', required: false)
rustc = meson.get_compiler('rust')
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if not cargo_c.found()
error('cargo-c missing, install it with: \'cargo install cargo-c\'')
endif
system = host_machine.system()
exe_suffix = ''
if system == 'windows'
exe_suffix = '.exe'
ext_dynamic = 'dll'
ext_static = 'lib'
elif system == 'darwin'
ext_dynamic = 'dylib'
ext_static = 'a'
else
ext_dynamic = 'so'
ext_static = 'a'
endif
# Extra env to pass to cargo
extra_env = {}
# Used to not lookup the same dependency multiple times which clutters logs
deps_cache = {}
# Need to depends on all gstreamer-rs deps to ensure they are built
# before gstreamer-rs when building with gst-build.
# Custom targets can't depend on dependency() objects so we have to depend
# on the library variable from the subproject instead.
glib_req = '>=2.62'
gst_req = '>=1.20.0'
depends = []
deps = [
# name, subproject name, subproject dep, library object
['gstreamer-1.0', 'gstreamer', 'gst_dep', 'libgst'],
['gstreamer-app-1.0', 'gst-plugins-base', 'app_dep', 'gstapp'],
['gstreamer-audio-1.0', 'gst-plugins-base', 'audio_dep', 'gstaudio'],
['gstreamer-base-1.0', 'gstreamer', 'gst_base_dep', 'gst_base'],
['gstreamer-video-1.0', 'gst-plugins-base', 'video_dep', 'gstvideo'],
]
webrtc_option = get_option('webrtc')
rtp_option = get_option('rtp').enable_if(webrtc_option.enabled(), error_message: 'webrtc option needs rtp')
rtsp_option = get_option('rtsp')
if get_option('threadshare').allowed() \
or get_option('onvif').allowed() \
or get_option('raptorq').allowed() \
or rtp_option.allowed() \
or webrtc_option.allowed()
deps += [['gstreamer-rtp-1.0', 'gst-plugins-base', 'rtp_dep', 'gst_rtp']]
endif
if get_option('webrtc').allowed() \
or get_option('webrtchttp').allowed()
deps += [['gstreamer-webrtc-1.0', 'gst-plugins-bad', 'gstwebrtc_dep', 'gstwebrtc']]
deps += [['gstreamer-sdp-1.0', 'gst-plugins-base', 'sdp_dep', 'gstsdp']]
endif
if get_option('tests').allowed()
deps += [['gstreamer-check-1.0', 'gstreamer', 'gst_check_dep', 'gst_check']]
endif
if get_option('gtk4').allowed()
deps += [['gstreamer-gl-1.0', 'gst-plugins-base', 'gst_gl_dep', 'gstgl']]
endif
if get_option('threadshare').allowed() or get_option('rtsp').allowed()
deps += [['gstreamer-net-1.0', 'gstreamer', 'gst_net_dep', 'gst_net']]
endif
glib_dep = dependency('glib-2.0', version: glib_req)
deps_cache += {'glib-2.0': glib_dep}
foreach d: deps
dep = dependency(d[0], version: gst_req,
fallback : [d[1], d[2]])
set_variable(d[2], dep)
deps_cache += {d[0]: dep}
if dep.type_name() == 'internal'
lib = subproject(d[1]).get_variable(d[3])
depends += lib
endif
endforeach
# kept in the same order as the `members` list in Cargo.toml
plugins = {
'audiofx': {
'library': 'libgstrsaudiofx',
'examples': ['hrtfrender'],
},
'claxon': {'library': 'libgstclaxon'},
# csound has a non-trivial external dependency, see below
'lewton': {'library': 'libgstlewton'},
'spotify': {'library': 'libgstspotify'},
'file': {'library': 'libgstrsfile'},
# sodium can have an external dependency, see below
'threadshare': {
'library': 'libgstthreadshare',
'examples': [
'ts-benchmark',
'udpsrc-benchmark-sender',
'tcpclientsrc-benchmark-sender',
'ts-standalone',
],
},
'inter': {'library': 'libgstrsinter'},
'mp4': {'library': 'libgstmp4'},
'fmp4': {
'library': 'libgstfmp4',
'examples': [
'dash_vod',
'hls_live',
'hls_vod',
],
},
'aws': {
'library': 'libgstaws',
'extra-deps': {'openssl': ['>=1.1']},
},
'hlssink3': {'library': 'libgsthlssink3'},
'ndi': {'library': 'libgstndi'},
'onvif': {
'library': 'libgstrsonvif',
'extra-deps': {'pangocairo': []},
},
'raptorq': {'library': 'libgstraptorq'},
'reqwest': {'library': 'libgstreqwest'},
'rtsp': {'library': 'libgstrsrtsp'},
'rtp': {'library': 'libgstrsrtp'},
'webrtchttp': {'library': 'libgstwebrtchttp'},
'webrtc': {
'library': 'libgstrswebrtc',
'examples': ['webrtcsink-stats-server'],
},
'textahead': {'library': 'libgsttextahead'},
'json': {'library': 'libgstjson'},
'regex': {'library': 'libgstregex'},
'textwrap': {'library': 'libgsttextwrap'},
'tracers': {'library': 'libgstrstracers'},
'uriplaylistbin': {
'library': 'libgsturiplaylistbin',
'examples': ['playlist'],
'features': ['clap'],
},
'cdg': {'library': 'libgstcdg'},
'closedcaption': {
'library': 'libgstrsclosedcaption',
'extra-deps': {
'pango': [],
'pangocairo': [],
'cairo-gobject': [],
}
},
'dav1d': {
'library': 'libgstdav1d',
'extra-deps': {'dav1d': ['>=1.0', '<1.3']},
},
'ffv1': {'library': 'libgstffv1'},
'flavors': {'library': 'libgstrsflv'},
'gif': {
'library': 'libgstgif',
'examples': ['testvideosrc2gif'],
},
# gtk4 is added below
'hsv': {'library': 'libgsthsv'},
'png': {
'library': 'libgstrspng',
'examples': ['pngenc'],
},
'rav1e': {'library': 'libgstrav1e'},
'videofx': {
'library': 'libgstrsvideofx',
'extra-deps': {'cairo-gobject': []},
},
}
if get_option('examples').allowed()
plugins += {
'fallbackswitch': {
'library': 'libgstfallbackswitch',
'examples': ['gtk-fallbackswitch'],
'features': ['gtk', 'gio', 'gst-plugin-gtk4'],
},
'livesync': {
'library': 'libgstlivesync',
'examples': ['gtk-livesync'],
'features': ['gtk', 'gio', 'gst-plugin-gtk4'],
},
'togglerecord': {
'library': 'libgsttogglerecord',
'examples': ['gtk-recording'],
'features': ['gtk', 'gio', 'gst-plugin-gtk4'],
},
}
else
plugins += {
'fallbackswitch': { 'library': 'libgstfallbackswitch'},
'livesync': { 'library': 'libgstlivesync'},
'togglerecord': { 'library': 'libgsttogglerecord'},
}
endif
# Won't build on platforms where it bundles the sources because of:
# https://github.com/qnighy/libwebp-sys2-rs/issues/12
# the fix is:
# https://github.com/qnighy/libwebp-sys2-rs/pull/13
if host_system not in ['windows', 'darwin']
# FIXME: libwebp-sys2 will build its bundled version on msvc and apple platforms
# https://github.com/qnighy/libwebp-sys2-rs/issues/4
plugins += {'webp': {
'library': 'libgstrswebp',
'extra-deps': {'libwebpdemux': []},
}}
endif
sodium_opt = get_option('sodium')
if sodium_opt.allowed()
sodium_plugin = {'sodium': {
'library': 'libgstsodium',
'examples': ['generate-keys', 'encrypt-example', 'decrypt-example'],
'features': ['serde', 'serde_json', 'clap'],
}}
if get_option('sodium-source') == 'system'
sodium_dep = dependency('libsodium', required: sodium_opt.enabled())
extra_env += {'SODIUM_USE_PKG_CONFIG': '1'}
if sodium_dep.found()
plugins += sodium_plugin
endif
else
plugins += sodium_plugin
endif
endif
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cc = meson.get_compiler('c')
csound_option = get_option('csound')
if csound_option.allowed()
# if csound isn't distributed with pkg-config then user needs to define CSOUND_LIB_DIR with its location
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res = run_command(python, '-c', 'import os; print(os.environ["CSOUND_LIB_DIR"])', check: false)
if res.returncode() == 0
csound_libdir = res.stdout().strip()
csound_dep = cc.find_library('csound64', dirs: csound_libdir, required: false)
if csound_dep.found()
plugins += {'csound': {
'library': 'libgstcsound',
'examples': ['csound-effect'],
}}
extra_env += {'CSOUND_LIB_DIR': csound_libdir}
elif csound_option.enabled()
error('csound option is enabled, but csound64 library could not be found and CSOUND_LIB_DIR was not set')
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endif
endif
endif
if get_option('gtk4').allowed()
gtk4_features = []
gl_winsys = gst_gl_dep.get_variable('gl_winsys').split()
gl_platforms = gst_gl_dep.get_variable('gl_platforms').split()
if 'wayland' in gl_winsys
gtk4_features += 'wayland'
endif
if 'x11' in gl_winsys
if 'egl' in gl_platforms
gtk4_features += 'x11egl'
endif
if 'glx' in gl_platforms
gtk4_features += 'x11glx'
endif
elif host_system == 'windows'
if 'egl' in gl_platforms
gtk4_features += 'winegl'
endif
endif
plugins += {
'gtk4': {
'library': 'libgstgtk4',
'examples': ['gtksink'],
'extra-deps': {'gtk4': ['>=4.6']},
'features': gtk4_features,
},
}
endif
# Process plugins list
default_library = get_option('default_library')
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library_suffixes = []
if default_library in ['shared', 'both']
library_suffixes += [ext_dynamic]
endif
if default_library in ['static', 'both']
library_suffixes += [ext_static]
endif
# cargo packages (plugins) to build
packages = []
# cargo features
features = []
# examples to build
examples = []
# Add the plugin library files as output
output = []
if get_option('gtk4').allowed()
if glib_dep.version().version_compare('>=2.74')
features += ['glib/v2_74', 'gio/v2_74']
elif glib_dep.version().version_compare('>=2.72')
features += ['glib/v2_72', 'gio/v2_72']
elif glib_dep.version().version_compare('>=2.70')
features += ['glib/v2_70', 'gio/v2_70']
elif glib_dep.version().version_compare('>=2.68')
features += ['glib/v2_68', 'gio/v2_68']
elif glib_dep.version().version_compare('>=2.66')
features += ['glib/v2_66', 'gio/v2_66']
elif glib_dep.version().version_compare('>=2.64')
features += ['glib/v2_64', 'gio/v2_64']
elif glib_dep.version().version_compare('>=2.62')
features += ['glib/v2_62', 'gio/v2_62']
elif glib_dep.version().version_compare('>=2.60')
features += ['glib/v2_60', 'gio/v2_60']
elif glib_dep.version().version_compare('>=2.58')
features += ['glib/v2_58', 'gio/v2_58']
endif
endif
if get_option('rav1e').allowed()
nasm = find_program('nasm', required: false)
if nasm.found()
features += 'gst-plugin-rav1e/asm'
extra_env += {'NASM': nasm.full_path()}
endif
endif
if get_option('default_library') == 'static'
extra_env += {
# Tell the pkg-config crate to think of all libraries as static
'PKG_CONFIG_ALL_STATIC': '1',
# Tell the system-deps crate to process linker flag for static deps
'SYSTEM_DEPS_LINK': 'static'
}
endif
foreach plugin_name, details: plugins
plugin_opt = get_variable(f'@plugin_name@_option', get_option(plugin_name))
if plugin_opt.allowed()
plugin_deps_found = true
foreach dep_name, dep_ver: details.get('extra-deps', {})
if dep_ver.length() != 0
dep = dependency(dep_name, version: dep_ver, required: plugin_opt)
else
dep = dependency(dep_name, required: plugin_opt)
endif
deps_cache += {dep_name: dep}
if not dep.found()
plugin_deps_found = false
break
endif
endforeach
plugin_features = details.get('features', [])
if plugin_deps_found
# Validate gst-plugin features
foreach feature: plugin_features
if feature.startswith('gst-plugin') and not packages.contains(feature)
plugin_deps_found = false
break
endif
endforeach
endif
if plugin_deps_found
packages += f'gst-plugin-@plugin_name@'
features += plugin_features
extra_features = run_command('dependencies.py', meson.current_source_dir(), plugin_name,
'--feature', '--gst-version', gst_dep.version(), capture: true, check: true).stdout().strip()
if extra_features != ''
features += extra_features.split(',')
endif
lib = details.get('library')
# No 'lib' suffix with MSVC
if cc.get_argument_syntax() == 'msvc'
lib = lib.substring(3)
endif
if default_library in ['shared', 'both']
output += [lib + '.' + ext_dynamic]
endif
if default_library in ['static', 'both']
output += [lib + '.' + ext_static]
endif
endif
endif
endforeach
feature_args = []
if features.length() > 0
feature_args += ['--features', features]
endif
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plugins_install_dir = get_option('libdir') / 'gstreamer-1.0'
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pkgconfig_install_dir = get_option('libdir') / 'pkgconfig'
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extra_args = []
if get_option('doc').disabled()
extra_args += ['--disable-doc']
endif
# 'pkgconfig' is the entry in the machine file, if specified
pkg_config = find_program('pkgconfig', 'pkg-config')
if pkg_config.found()
extra_env += {'PKG_CONFIG': pkg_config.full_path()}
endif
pkg_config_path = get_option('pkg_config_path')
if pkg_config_path.length() > 0
pathsep = ':'
if host_system == 'windows'
pathsep = ';'
endif
extra_env += {'PKG_CONFIG_PATH': pathsep.join(pkg_config_path)}
endif
# get cmdline for rust
extra_env += {'RUSTC': ' '.join(rustc.cmd_array())}
plugins = []
if output.length() > 0
rs_plugins = custom_target('gst-plugins-rs',
build_by_default: true,
output: output,
console: true,
install: true,
install_dir: plugins_install_dir,
depends: depends,
depfile: 'gst-plugins-rs.dep',
env: extra_env,
command: [cargo_wrapper,
'build',
meson.current_build_dir(),
meson.current_source_dir(),
meson.global_build_root(),
target,
get_option('prefix'),
get_option('libdir'),
'--packages', packages,
'--depfile', '@DEPFILE@',
'--lib-suffixes', library_suffixes,
] + feature_args + extra_args)
plugins = rs_plugins.to_list()
endif
# This is used by GStreamer to static link Rust plugins into gst-full
gst_plugins = []
pc_files = []
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plugin_names = []
foreach plugin : plugins
plugin_name = fs.stem(plugin.full_path())
# skip the 'lib' prefix from plugin path when not building with MSVC
if cc.get_argument_syntax() != 'msvc'
plugin_name = plugin_name.substring(3)
endif
option_name = plugin_name.substring(3)
if option_name.startswith('rs')
option_name = option_name.substring(2)
endif
if option_name == 'flv'
option_name = 'flavors'
endif
if not get_option(option_name).allowed()
continue
endif
# Extract plugin dependencies from their Cargo.toml file
plugin_deps = []
p = run_command('dependencies.py', meson.current_source_dir(), plugin_name,
capture: true,
check: true)
foreach dep_name : p.stdout().strip().split(',')
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dep_name_version = dep_name.split('|')
dep_name = dep_name_version.get(0).strip()
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if dep_name_version.length() > 1
extras = {'version': dep_name_version.get(1).strip()}
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else
extras = {}
endif
if deps_cache.has_key(dep_name)
plugin_deps += deps_cache[dep_name]
else
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dep = dependency(dep_name, required: false, kwargs: extras)
plugin_deps += dep
deps_cache += {dep_name: dep}
endif
endforeach
dep = declare_dependency(
link_with: plugin,
dependencies: plugin_deps,
variables: {'full_path': plugin.full_path()},
)
meson.override_dependency(plugin_name, dep)
if default_library == 'static' and plugin_name in ['gstcsound', 'gstthreadshare', 'gstgtk4']
warning('Static plugin @0@ is known to fail. It will not be included in libgstreamer-full.'.format(plugin_name))
else
gst_plugins += dep
pc_files += [plugin_name + '.pc']
if plugin_name.startswith('gst')
plugin_names += [plugin_name.substring(3)]
else
plugin_names += [plugin_name]
endif
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endif
endforeach
subdir('docs')
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# We don't need to pass a command as we depends on the target above
# but it is currently mandatory ( https://github.com/mesonbuild/meson/issues/8059 )
# so use python as it's guaranteed to be present on any setup
if pc_files.length() > 0
custom_target('gst-plugins-rs-pc-files',
build_by_default: true,
output: pc_files,
console: true,
install: true,
install_dir: pkgconfig_install_dir,
depends: rs_plugins,
command: [python, '-c', '""'])
endif
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if get_option('webrtc').allowed()
custom_target('gst-webrtc-signalling-server',
build_by_default: true,
output: 'gst-webrtc-signalling-server' + exe_suffix,
console: true,
install: true,
install_dir: get_option('bindir'),
depfile: 'gst-webrtc-signalling-server.dep',
env: extra_env,
command: [cargo_wrapper,
'build',
meson.current_build_dir(),
meson.current_source_dir(),
meson.global_build_root(),
target,
get_option('prefix'),
get_option('libdir'),
'--depfile', '@DEPFILE@',
'--bin', 'gst-webrtc-signalling-server',
'--exe-suffix', exe_suffix,
])
endif
if get_option('examples').allowed() and examples.length() > 0
outputs = []
foreach example: examples
outputs += [example + exe_suffix]
endforeach
custom_target('gst-plugins-rs-examples',
build_by_default: true,
output: outputs,
console: true,
install: false,
depfile: 'gst-plugins-rs-examples.dep',
env: extra_env,
command: [cargo_wrapper,
'build',
meson.current_build_dir(),
meson.current_source_dir(),
meson.global_build_root(),
target,
get_option('prefix'),
get_option('libdir'),
'--depfile', '@DEPFILE@',
'--packages', packages,
'--examples', examples,
'--exe-suffix', exe_suffix,
] + feature_args)
endif
if get_option('tests').allowed()
test('tests',
cargo_wrapper,
env: extra_env,
args: ['test',
meson.current_build_dir(),
meson.current_source_dir(),
meson.global_build_root(),
target,
get_option('prefix'),
get_option('libdir'),
'--packages', packages],
timeout: 600)
endif
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summary({
'Plugins': plugin_names,
}, list_sep: ', ')