gstreamer/meson.build
Stéphane Cerveau bdbf6e1c17 gst-full: register full features in a plugin
To offer the possibility to get information at plugin
level and get it from the registry, all the
full features are now registered in 'fullstaticfeatures'
meta plugin instead of NULL plugin.
In the case of gst-inspect, the features were not displayed
at plugin level because it was a NULL plugin.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5421>
2023-10-05 11:40:45 +00:00

647 lines
23 KiB
Meson

project('gstreamer-full', 'c',
version : '1.23.0.1',
meson_version : '>= 0.63.0',
default_options : ['buildtype=debugoptimized',
# Needed due to https://github.com/mesonbuild/meson/issues/1889,
# but this can cause problems in the future. Remove it
# when it's no longer necessary.
'cpp_std=c++14'])
apiversion = '1.0'
gst_version = '>= @0@'.format(meson.project_version())
build_system = build_machine.system()
cc = meson.get_compiler('c')
fs = import('fs')
gnome = import('gnome')
pkgconfig = import('pkgconfig')
python3 = import('python').find_installation()
# Ensure that we're not being run from inside the development environment
# because that will confuse meson, and it might find the already-built
# gstreamer. It's fine if people run `ninja` as long as it doesn't run
# reconfigure because ninja doesn't care about the env.
ensure_not_devenv = '''
import os
assert('GST_ENV' not in os.environ)
'''
cmdres = run_command(python3, '-c', ensure_not_devenv, check: false)
if cmdres.returncode() != 0
error('Do not run `ninja reconfigure` or `meson` for gst-build inside the development environment, you will run into problems')
endif
# Install gst-indent pre-commit hook
run_command(python3, '-c', 'import shutil; shutil.copy("scripts/git-hooks/multi-pre-commit.hook", ".git/hooks/pre-commit")', check: false)
gitlint_req = '>= 0.18'
gitlint = find_program('gitlint', version: gitlint_req, required: false)
if gitlint.found()
run_command(gitlint, 'install-hook', check: false)
else
message('gitlint not found or too old, please install it with your package manager or `python3 -m pip install gitlint` to enable the commit message hook')
endif
# On macOS, you have to run "Install Certificates.command" otherwise Python
# doesn't have access to the latest SSL CA Certificates, and Meson will fail to
# download wrap files from websites that use, for example, Let's Encrypt.
# We already recommend this in the README, but add a warning here as well.
# Can't make this an error because the user might be using XCode's Python
# 3 which doesn't have this script.
if build_system == 'darwin'
python3_cacert_file = python3.get_path('data') / 'etc/openssl/cert.pem'
install_cert_cmd = '/Applications/Python @0@/Install Certificates.command'.format(python3.language_version())
if not fs.is_symlink(python3_cacert_file) and fs.is_file(install_cert_cmd)
warning('Please run "@0@" so that Python has access to the latest SSL certificates. Meson might fail to download some wraps without it.'.format(install_cert_cmd))
endif
endif
documented_projects = ''
# Make it possible to use msys2 built zlib which fails
# when not using the mingw toolchain as it uses unistd.h
if not meson.is_subproject() and cc.get_id() == 'msvc'
uname = find_program('uname', required: false)
if uname.found()
ret = run_command(uname, '-o', check: false)
if ret.returncode() == 0 and ret.stdout().to_lower() == 'msys'
ret = run_command(uname, '-r', check: false)
# The kernel version returned by uname is actually the msys version
if ret.returncode() == 0 and ret.stdout().startswith('2')
# If a system zlib is found, disable UNIX features in zlib.h and zconf.h
if cc.find_library('z').found()
add_global_arguments('-DZ_SOLO', language: 'c')
endif
endif
endif
endif
endif
# Ensure that MSVC interprets all source code as UTF-8. Only do this when we're
# not a subproject, because subprojects are not allowed to call
# add_global_arguments().
if not meson.is_subproject() and cc.get_id() == 'msvc'
add_global_arguments(
cc.get_supported_arguments(['/utf-8']), # set the input encoding to utf-8
language: ['c', 'cpp'])
endif
building_full = get_option('default_library') == 'static'
building_full_static = get_option('gst-full-target-type') == 'static_library'
buildind_full_options = []
if building_full
buildind_full_options = ['gstreamer-full=enabled']
endif
# Ordered list of subprojects (dict has no ordering guarantees)
subprojects = [
['gstreamer', {'build-hotdoc': true, 'subproject_options': buildind_full_options}],
['gst-plugins-base', {'option': get_option('base'), 'build-hotdoc': true}],
['gst-plugins-good', {'option': get_option('good'), 'build-hotdoc': true}],
['libnice', { 'option': get_option('libnice'), 'match_gst_version': false}],
['gst-plugins-bad', { 'option': get_option('bad'), 'build-hotdoc': true}],
['gst-plugins-ugly', { 'option': get_option('ugly'), 'build-hotdoc': true}],
['gst-libav', { 'option': get_option('libav'), 'build-hotdoc': true}],
['gst-rtsp-server', { 'option': get_option('rtsp_server'), 'build-hotdoc': true}],
['gst-devtools', { 'option': get_option('devtools'), 'build-hotdoc': true}],
['gst-integration-testsuites', { 'option': get_option('devtools') }],
['gst-editing-services', { 'option': get_option('ges'), 'build-hotdoc': true}],
['gstreamer-vaapi', { 'option': get_option('vaapi'), 'build-hotdoc': true}],
['gstreamer-sharp', { 'option': get_option('sharp') }],
['pygobject', { 'option': get_option('python'), 'match_gst_version': false, 'sysdep': 'pygobject-3.0', 'sysdep_version': '>= 3.8' }],
['gst-python', { 'option': get_option('python')}],
['gst-examples', { 'option': get_option('gst-examples'), 'match_gst_versions': false}],
['gst-plugins-rs', { 'option': get_option('rs'), 'build-hotdoc': true, 'match_gst_version': false}],
]
if get_option('build-tools-source') == 'subproject'
if build_system == 'windows'
subproject('win-flex-bison-binaries')
subproject('win-nasm')
subproject('win-pkgconfig')
elif build_system == 'darwin'
subproject('macos-bison-binary')
# Newer macOS provides /usr/lib/pkgconfig/libpcre2-8.pc which is broken
# because it says headers are in /usr/include but that directory doesn't
# exist. It can only be used to find the library, which only exists on
# newer macOS at /usr/lib/libpcre2-8.dylib, so it's also unusable.
#
# jit support requires macOS 11.0 or newer, so disable it by default
subproject('pcre2', default_options: ['default_library=static', 'jit=disabled'])
endif
endif
orc_option = get_option('orc')
# There is a check below to keep this in sync with subprojects/gst-plugins-base/meson.build
orc_req = '>= 0.4.24'
orc_source_option = get_option('orc-source')
orc_subproject = disabler()
if orc_option.allowed()
if orc_source_option == 'subproject'
orc_subproject = subproject('orc', required: orc_option)
else
dependency('orc-0.4', version: orc_req, required: orc_option,
allow_fallback: orc_source_option == 'auto')
endif
endif
foreach custom_subproj: get_option('custom_subprojects').split(',')
if custom_subproj != ''
message ('Adding custom subproject ' + custom_subproj)
subprojects += [[custom_subproj, {'match_gst_version': false}]]
endif
endforeach
subprojects_names = []
plugins_doc_caches = []
orc_update_targets = []
all_plugins = []
all_tools = {}
all_helpers = {}
gst_tools = []
gst_helpers = []
gst_libraries =[]
# Using a list and not a dict to keep the ordering to build the chain of `gir`
# dependencies
all_libraries = []
foreach sp : subprojects
project_name = sp[0]
build_infos = sp[1]
is_required = build_infos.get('option', true)
sysdep = build_infos.get('sysdep', '')
sysdep_version = build_infos.get('sysdep_version', '')
match_gst_version = build_infos.get('match_gst_version', true)
default_options = build_infos.get('subproject_options', [])
if match_gst_version
subproj = subproject(project_name, version: gst_version, required: is_required, default_options: default_options)
elif sysdep != ''
sysdep_dep = dependency(sysdep, version: sysdep_version, required: is_required, default_options: default_options)
else
subproj = subproject(project_name, required: is_required, default_options: default_options)
endif
if project_name == 'gst-plugins-base'
gst_base_orc_req = subproj.get_variable('orc_req', '')
if gst_base_orc_req != orc_req
error('orc_req is "@0@" but it should be "@1@" from subprojects/gst-plugins-base/meson.build'
.format(orc_req, gst_base_orc_req))
endif
endif
if subproj.found()
plugins = subproj.get_variable('gst_plugins', [])
legacy_plugins = subproj.get_variable('plugins', [])
all_plugins += plugins
if plugins.length() == 0 and legacy_plugins.length() > 0
warning(f'DEPRECATED use of the `plugins` variable in @project_name@.')
warning('The variable should now be called `gst_plugins` and use:')
warning('`declare_dependency( link_with: <plugin_target>, variable: {\'full_path\': <plugin_target>.full_path()})` instead')
foreach plugin: legacy_plugins
all_plugins += [declare_dependency(link_with: plugin, variables: {'full_path': plugin.full_path()})]
endforeach
endif
all_libraries += subproj.get_variable('gst_libraries', [])
if not get_option('tools').disabled()
all_tools += subproj.get_variable('gst_tools', {})
all_helpers += subproj.get_variable('gst_helpers', {})
endif
orc_update_targets += subproj.get_variable('orc_update_targets', [])
subprojects_names += [project_name]
if not meson.is_cross_build() and build_infos.get('build-hotdoc', false)
plugins_doc_caches += [subproj.get_variable('gst_plugins_doc_dep', [])]
if documented_projects != ''
documented_projects += ','
endif
documented_projects += project_name
endif
endif
endforeach
# Check if we need to also build glib-networking for TLS modules
giomodules = []
glib_dep = dependency('glib-2.0')
if glib_dep.type_name() == 'internal'
subp = subproject('glib-networking', required : get_option('tls'),
default_options: ['gnutls=auto', 'openssl=auto'])
if subp.found()
giomodules += subp.get_variable('giomodules', [])
endif
endif
gst_plugins_doc_dep = custom_target('plugins-doc-cache',
command: [python3, '-c', 'print("Built all doc caches")'],
input: plugins_doc_caches,
output: 'plugins_doc_caches',
capture: true,
)
gir_files = []
gir_targets = []
foreach pkgname_library : all_libraries
lib_def = pkgname_library[1]
foreach gir_target: lib_def.get('gir_targets', [])
gir_files += [gir_target[0].full_path()]
gir_targets += gir_target
endforeach
endforeach
custom_target('update_girs',
command: [find_program('scripts/update-girs.py'), meson.build_root()] + gir_files,
output: 'update_girs',
capture: true,
depends: gir_targets
)
if meson.is_cross_build() or build_machine.system() == 'windows'
if get_option('doc').enabled()
error('Documentation enabled but building the doc while cross building or building on windows is not supported yet.')
endif
documented_projects = ''
message('Documentation not built as building the documentation while cross building or building on windows is not supported yet.')
else
hotdoc_p = find_program('hotdoc', required : get_option('doc'))
if not hotdoc_p.found()
documented_projects = ''
message('Not building documentation as hotdoc was not found')
endif
endif
write_file_contents = '''
import os
import sys
assert len(sys.argv) >= 3
fname = sys.argv[1]
contents = sys.argv[2]
with open(fname, 'w') as f:
f.write(contents)
'''
configure_file(
output : 'GstDocumentedSubprojects',
command : [python3,
'-c', write_file_contents,
'@OUTPUT@',
documented_projects]
)
if documented_projects != ''
gst_doc = subproject('gst-docs', required: get_option('doc').enabled())
if gst_doc.found()
gst_doc_target = gst_doc.get_variable('gstreamer_doc')
alias_target('gst-doc', gst_doc_target)
endif
message('Gst docs subprojects: ' + documented_projects)
endif
all_plugins_paths = []
all_plugins_dirs = []
plugins_names = []
foreach plugin: all_plugins
plugin_path = plugin.get_variable('full_path')
all_plugins_paths += plugin_path
all_plugins_dirs += fs.parent(plugin_path)
plugins_names += fs.name(plugin_path)
endforeach
# Work around meson bug: https://github.com/mesonbuild/meson/pull/6770
pathsep = host_machine.system() == 'windows' ? ';' : ':'
all_plugins_paths = pathsep.join(all_plugins_paths)
devenv = environment()
if not building_full
devenv.prepend('GST_PLUGIN_PATH', all_plugins_dirs)
else
# Make sure the current build directory is first in PATH so we prefer tools
# built here that links on gst-full instead instead of those built in
# subprojects.
devenv.prepend('PATH', meson.current_build_dir())
endif
devenv.set('CURRENT_GST', meson.current_source_dir())
devenv.set('GST_VERSION', meson.project_version())
devenv.set('GST_ENV', 'gst-' + meson.project_version())
devenv.set('GST_REGISTRY', meson.current_build_dir() / 'registry.dat')
devenv.set('GST_PLUGIN_SYSTEM_PATH', '')
meson.add_devenv(devenv)
generate_plugins_paths = find_program('scripts/generate_plugins_path.py')
configure_file(
output : 'GstPluginsPath.json',
command : [generate_plugins_paths,
'@OUTPUT@',
all_plugins_paths]
)
if building_full
cdata = configuration_data()
cdata.set_quoted('GST_API_VERSION', apiversion)
cdata.set_quoted('GETTEXT_PACKAGE', 'gstreamer-full-1.0')
cdata.set_quoted('PACKAGE_VERSION', meson.project_version())
cdata.set_quoted('GST_PACKAGE_ORIGIN', get_option('package-origin'))
cdata.set_quoted('GST_FULL_LICENSE', get_option('gstreamer-full-license'))
cdata.set_quoted('GST_PLUGIN_FULL_FEATURES_NAME', 'fullstaticfeatures')
configure_file(output : 'config.h', configuration : cdata)
configinc = include_directories('.')
gst_c_args = ['-DHAVE_CONFIG_H']
# Generate a .c file which declare and register all built plugins
all_plugin_names = ';'.join(plugins_names)
static_plugins = get_option('gst-full-plugins')
if static_plugins == '*'
static_plugins = all_plugin_names
endif
generate_init_static_plugins = find_program('scripts/generate_init_static_plugins.py')
init_static_plugins_c = configure_file(
output: 'gstinitstaticplugins.c',
command : [generate_init_static_plugins,
'-o ' + '@OUTPUT@',
'-p ' + static_plugins,
'-e ' + get_option('gst-full-elements'),
'-t ' + get_option('gst-full-typefind-functions'),
'-d ' + get_option('gst-full-device-providers'),
'-T ' + get_option('gst-full-dynamic-types'),
'--giomodules', ';'.join(giomodules),
]
)
gstfull_link_args = cc.get_supported_link_arguments(['-Wl,-Bsymbolic-functions'])
# Get a list of libraries that needs to be exposed in the ABI.
exposed_libs = []
exposed_deps = []
exposed_girs = []
incdir_deps = []
wanted_libs = ['gstreamer-1.0'] + get_option('gst-full-libraries')
all_libs = '*' in wanted_libs
foreach pkgname_library : all_libraries
pkg_name = pkgname_library[0]
gst_libraries += pkg_name
lib_def = pkgname_library[1]
if pkg_name in wanted_libs or all_libs
if lib_def.has_key('lib')
exposed_deps += dependency(pkg_name)
incdir_deps += dependency(pkg_name).partial_dependency(includes: true, sources: true)
exposed_libs += [lib_def['lib']]
endif
if lib_def.has_key('gir')
exposed_girs += lib_def['gir']
endif
endif
endforeach
# glib and gobject are part of our public API. If we are using glib from the
# system then our pkg-config file must require it. If we built it as
# subproject then we need to link_whole it.
# Note that link_whole dependencies aren't exposed transitively in
# Windows/Cygwin, because symbols from static libraries must
# be manually marked as exported through a module definition file.
# See e.g. https://github.com/FFmpeg/FFmpeg/blob/3057ce797f6e1348b978f5ffe9e2afd2224544f0/configure#L5726
glib_deps = []
glib_dep = dependency('glib-2.0')
gobject_dep = dependency('gobject-2.0')
if gobject_dep.type_name() == 'internal'
glib_subproject = subproject('glib')
exposed_libs += glib_subproject.get_variable('libglib')
exposed_libs += glib_subproject.get_variable('libgobject')
incdir_deps += [
glib_dep.partial_dependency(includes: true),
gobject_dep.partial_dependency(includes: true),
]
else
glib_deps = [glib_dep, gobject_dep]
endif
link_deps = []
if get_option('gst-full-version-script') != ''
symbol_map = meson.current_source_dir() / get_option('gst-full-version-script')
link_arg = '-Wl,--version-script=' + symbol_map
if cc.has_link_argument(link_arg)
gstfull_link_args += link_arg
link_deps += symbol_map
elif cc.get_id() == 'msvc'
warning('FIXME: Provide a def file to publish the public symbols')
else
warning('FIXME: Linker does not support the supplied version script (' + symbol_map + '), please disable the "gst-full-version-script" option')
endif
endif
giomodules_deps = []
foreach module : giomodules
giomodules_deps += dependency(module)
endforeach
# Build shared library
gstfull = build_target('gstreamer-full-1.0',
init_static_plugins_c,
c_args: ['-DBUILDING_GST'] + gst_c_args,
target_type: get_option('gst-full-target-type'),
link_args: gstfull_link_args,
link_whole : exposed_libs,
dependencies : [incdir_deps, glib_deps, all_plugins, giomodules_deps],
link_depends : link_deps,
install : true,
)
gst_full_c_flags = []
if building_full_static or get_option('default_library') == 'static'
gst_full_c_flags += ['-DGST_STATIC_COMPILATION']
endif
gst_full_libs = [gstfull]
# See above re: symbol exports in Win32
if ['windows', 'cygwin'].contains(host_machine.system())
gst_full_libs += exposed_libs
endif
gst_full_dep = declare_dependency(link_with: gst_full_libs,
compile_args: gst_full_c_flags,
dependencies : incdir_deps + glib_deps,
include_directories: include_directories('.')
)
gst_full_libs_private = cc.get_supported_link_arguments(['-Wl,--undefined=gst_init_static_plugins'])
if gst_full_libs_private == []
warning('The compiler does not support `-Wl,--undefined` linker flag. The method `gst_init_static_plugins` might be dropped during the link stage of an application using libgstreamer-full-1.0.a, preventing plugins registration.')
endif
if building_full_static
warning('Introspection is enabled in gst-full static build mode but this is not supported by now. gir generation is now disabled.')
endif
# FIXME: gnome.generate_gir should link with not only gstfull in static gst-full but the whole gstreamer suite.
# tried dependencies without success.
if not get_option('introspection').disabled() and not building_full_static
built_girs = {}
foreach gir: exposed_girs
includes = []
foreach include: gir.get('includes', [])
includes += [built_girs.get(include, include)]
endforeach
gir += {
'includes': includes,
'extra_args': gir.get('extra_args', []) + ['--add-include-path=' + meson.current_build_dir()],
'install': true,
}
built_girs += {gir.get('namespace') + '-' + gir.get('nsversion'): gnome.generate_gir(gstfull, kwargs: gir)[0]}
endforeach
endif
pkgconfig.generate(gstfull,
requires: glib_deps,
libraries_private: gst_full_libs_private,
extra_cflags: gst_full_c_flags,
subdirs : 'gstreamer-1.0')
meson.override_dependency('gstreamer-full-1.0', gst_full_dep)
if not get_option('tools').disabled()
# Loop for tools
foreach tool, data: all_tools
gst_tools += tool
exe_name = '@0@-@1@'.format(tool, apiversion)
deps = []
foreach d : data.get('deps', [])
if d not in exposed_deps
deps += d
endif
endforeach
exe = executable(exe_name,
data.get('files'),
install: data.get('install', true),
install_tag: data.get('install_tag', 'bin'),
install_dir: data.get('install_dir', get_option('bindir')),
include_directories : data.get('include_directories', [configinc]),
dependencies : [gst_full_dep] + deps,
c_args: data.get('extra_c_args', []) + gst_c_args + ['-DG_LOG_DOMAIN="@0@"'.format(exe_name)],
cpp_args: data.get('extra_cpp_args', []),
objc_args: data.get('extra_objc_args', []),
override_options: data.get('override_options', []),
)
if(data.has_key('env'))
env = data.get('env')
value = env[1]
if env[1] == 'exe-full-path'
value = exe.full_path()
endif
meson.add_devenv({env[0]: value})
endif
if data.has_key('man_page')
install_man(data.get('man_page'))
endif
endforeach
# Loop for helpers tools
foreach helper, data: all_helpers
gst_helpers += helper
exe_name = '@0@'.format(helper)
deps = []
foreach d : data.get('deps', [])
if d not in exposed_deps
deps += d
endif
endforeach
exe = executable(exe_name,
data.get('files'),
install: data.get('install', true),
install_tag: data.get('install_tag', 'bin'),
install_dir: data.get('install_dir', get_option('bindir')),
include_directories : data.get('include_directories', [configinc]),
dependencies : [gst_full_dep] + deps,
c_args: data.get('extra_c_args', []) + gst_c_args + ['-DG_LOG_DOMAIN="@0@"'.format(exe_name)],
cpp_args: data.get('extra_cpp_args', []),
objc_args: data.get('extra_objc_args', []),
override_options: data.get('override_options', []),
)
if(data.has_key('env'))
env = data.get('env')
value = env[1]
if env[1] == 'exe-full-path'
value = exe.full_path()
endif
meson.add_devenv({env[0]: value})
endif
if data.has_key('man_page')
install_man(data.get('man_page'))
endif
endforeach
endif
else # not gst_full
foreach tool, data: all_tools
gst_tools += tool
endforeach
foreach helper, data: all_helpers
gst_helpers += helper
endforeach
foreach library : all_libraries
gst_libraries = library[0]
endforeach
endif
message('Building subprojects: ' + ', '.join(subprojects_names))
setenv = find_program('gst-env.py')
devenv_cmd = [setenv, '--builddir=@0@'.format(meson.global_build_root()),
'--srcdir=@0@'.format(meson.global_source_root())]
subdir('tests')
subdir('ci/fuzzing')
if meson.can_run_host_binaries() and build_machine.system() == 'linux' and host_machine.system() == 'windows'
# FIXME: Ideally we could get the wrapper directly from meson
devenv_cmd += ['--wine', host_machine.cpu_family() == 'x86_64' ? 'wine64' : 'wine32']
sysroot = meson.get_cross_property('sys_root')
if sysroot != ''
# Logic from meson
devenv_cmd += ['--winepath', 'Z:' + join_paths(sysroot, 'bin')]
endif
endif
run_target('devenv', command : devenv_cmd)
if orc_subproject.found() and orc_update_targets.length() > 0
alias_target('update-orc-dist', orc_update_targets)
endif
subdir('scripts')
dotnet_format = find_program('dotnet-format', required: false)
if dotnet_format.found()
run_target('csharp_format_check',
command: [join_paths(meson.current_source_dir(), 'scripts', 'format-csharp'),
'--check'
],
)
run_target('csharp_format_apply',
command: [join_paths(meson.current_source_dir(), 'scripts', 'format-csharp'),
],
)
endif
summary({
'gstreamer-full library': building_full,
'gstreamer-full target type': get_option('gst-full-target-type'),
'Tools': gst_tools,
'Helpers': gst_helpers,
'Libraries': gst_libraries,
'Tests and examples disabled': building_full,
}, section: 'Build options', bool_yn: true, list_sep: ' ')