1 project('gstreamer-full', 'c',
3 meson_version : '>= 0.62.0',
4 default_options : ['buildtype=debugoptimized',
5 # Needed due to https://github.com/mesonbuild/meson/issues/1889,
6 # but this can cause problems in the future. Remove it
7 # when it's no longer necessary.
11 gst_version = '>= @0@'.format(meson.project_version())
13 build_system = build_machine.system()
14 cc = meson.get_compiler('c')
17 gnome = import('gnome')
18 pkgconfig = import('pkgconfig')
19 python3 = import('python').find_installation()
20 # Ensure that we're not being run from inside the development environment
21 # because that will confuse meson, and it might find the already-built
22 # gstreamer. It's fine if people run `ninja` as long as it doesn't run
23 # reconfigure because ninja doesn't care about the env.
24 ensure_not_devenv = '''
26 assert('GST_ENV' not in os.environ)
28 cmdres = run_command(python3, '-c', ensure_not_devenv, check: false)
29 if cmdres.returncode() != 0
30 error('Do not run `ninja reconfigure` or `meson` for gst-build inside the development environment, you will run into problems')
33 # Install gst-indent pre-commit hook
34 run_command(python3, '-c', 'import shutil; shutil.copy("scripts/git-hooks/multi-pre-commit.hook", ".git/hooks/pre-commit")', check: false)
36 # On macOS, you have to run "Install Certificates.command" otherwise Python
37 # doesn't have access to the latest SSL CA Certificates, and Meson will fail to
38 # download wrap files from websites that use, for example, Let's Encrypt.
39 # We already recommend this in the README, but add a warning here as well.
40 # Can't make this an error because the user might be using XCode's Python
41 # 3 which doesn't have this script.
42 if build_system == 'darwin'
43 python3_cacert_file = python3.get_path('data') / 'etc/openssl/cert.pem'
44 install_cert_cmd = '/Applications/Python @0@/Install Certificates.command'.format(python3.language_version())
45 if not fs.is_symlink(python3_cacert_file) and fs.is_file(install_cert_cmd)
46 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))
50 documented_projects = ''
51 # Make it possible to use msys2 built zlib which fails
52 # when not using the mingw toolchain as it uses unistd.h
53 if not meson.is_subproject() and cc.get_id() == 'msvc'
54 uname = find_program('uname', required: false)
56 ret = run_command(uname, '-o', check: false)
57 if ret.returncode() == 0 and ret.stdout().to_lower() == 'msys'
58 ret = run_command(uname, '-r', check: false)
59 # The kernel version returned by uname is actually the msys version
60 if ret.returncode() == 0 and ret.stdout().startswith('2')
61 # If a system zlib is found, disable UNIX features in zlib.h and zconf.h
62 if cc.find_library('z').found()
63 add_global_arguments('-DZ_SOLO', language: 'c')
70 # Ensure that MSVC interprets all source code as UTF-8. Only do this when we're
71 # not a subproject, because subprojects are not allowed to call
72 # add_global_arguments().
73 if not meson.is_subproject() and cc.get_id() == 'msvc'
75 cc.get_supported_arguments(['/utf-8']), # set the input encoding to utf-8
76 language: ['c', 'cpp'])
79 building_full = get_option('default_library') == 'static'
80 tools_option = 'tools=auto'
81 if building_full and not get_option('tools').disabled()
82 # Do not build subprojects tools when we build them against gst-full
83 tools_option = 'tools=disabled'
86 # Ordered list of subprojects (dict has no ordering guarantees)
88 ['gstreamer', {'build-hotdoc': true, 'subproject_options': [tools_option]}],
89 ['gst-plugins-base', {'option': get_option('base'), 'build-hotdoc': true}],
90 ['gst-plugins-good', {'option': get_option('good'), 'build-hotdoc': true}],
91 ['libnice', { 'option': get_option('libnice'), 'match_gst_version': false}],
92 ['gst-plugins-bad', { 'option': get_option('bad'), 'build-hotdoc': true}],
93 ['gst-plugins-ugly', { 'option': get_option('ugly'), 'build-hotdoc': true}],
94 ['gst-libav', { 'option': get_option('libav'), 'build-hotdoc': true}],
95 ['gst-rtsp-server', { 'option': get_option('rtsp_server'), 'build-hotdoc': true}],
96 ['gst-devtools', { 'option': get_option('devtools'), 'build-hotdoc': true, 'subproject_options': [tools_option]}],
97 ['gst-integration-testsuites', { 'option': get_option('devtools') }],
98 ['gst-editing-services', { 'option': get_option('ges'), 'build-hotdoc': true, 'subproject_options': [tools_option]}],
99 ['gstreamer-vaapi', { 'option': get_option('vaapi'), 'build-hotdoc': true}],
100 ['gst-omx', { 'option': get_option('omx'), 'build-hotdoc': true}],
101 ['gstreamer-sharp', { 'option': get_option('sharp') }],
102 ['pygobject', { 'option': get_option('python'), 'match_gst_version': false, 'sysdep': 'pygobject-3.0', 'sysdep_version': '>= 3.8' }],
103 ['gst-python', { 'option': get_option('python')}],
104 ['gst-examples', { 'option': get_option('gst-examples'), 'match_gst_versions': false}],
105 ['gst-plugins-rs', { 'option': get_option('rs'), 'build-hotdoc': true, 'match_gst_version': false}],
111 os.symlink(os.path.join('@1@', 'subprojects', '@0@'),
112 os.path.join('@1@', '@0@'))
115 if build_system == 'windows'
116 subproject('win-flex-bison-binaries')
117 subproject('win-nasm')
118 elif build_system == 'darwin'
119 subproject('macos-bison-binary')
122 orc_subproject = subproject('orc', required: get_option('orc'))
124 foreach custom_subproj: get_option('custom_subprojects').split(',')
125 if custom_subproj != ''
126 message ('Adding custom subproject ' + custom_subproj)
127 subprojects += [[custom_subproj, {'match_gst_version': false}]]
132 subprojects_names = []
133 plugins_doc_caches = []
134 orc_update_targets = []
137 # Using a list and not a dict to keep the ordering to build the chain of `gir`
140 foreach sp : subprojects
143 is_required = build_infos.get('option', true)
144 sysdep = build_infos.get('sysdep', '')
145 sysdep_version = build_infos.get('sysdep_version', '')
146 match_gst_version = build_infos.get('match_gst_version', true)
147 default_options = build_infos.get('subproject_options', [])
150 subproj = subproject(project_name, version: gst_version, required: is_required, default_options: default_options)
152 sysdep_dep = dependency(sysdep, version: sysdep_version, required: false, default_options: default_options)
153 if not sysdep_dep.found()
154 subproj = subproject(project_name, required: is_required, default_options: default_options)
157 subproj = subproject(project_name, required: is_required, default_options: default_options)
161 plugins = subproj.get_variable('gst_plugins', [])
162 legacy_plugins = subproj.get_variable('plugins', [])
163 all_plugins += plugins
164 if plugins.length() == 0 and legacy_plugins.length() > 0
165 warning(f'DEPRECATED use of the `plugins` variable in @project_name@.')
166 warning('The variable should now be called `gst_plugins` and use:')
167 warning('`declare_dependency( link_with: <plugin_target>, variable: {\'full_path\': <plugin_target>.full_path()})` instead')
168 foreach plugin: legacy_plugins
169 all_plugins += [declare_dependency(link_with: plugin, variables: {'full_path': plugin.full_path()})]
173 all_libraries += subproj.get_variable('gst_libraries', [])
174 if not get_option('tools').disabled()
175 all_tools += subproj.get_variable('gst_tools', {})
178 orc_update_targets += subproj.get_variable('orc_update_targets', [])
180 subprojects_names += [project_name]
182 if not meson.is_cross_build() and build_infos.get('build-hotdoc', false)
183 plugins_doc_caches += [subproj.get_variable('gst_plugins_doc_dep', [])]
184 if documented_projects != ''
185 documented_projects += ','
187 documented_projects += project_name
192 # Check if we need to also build glib-networking for TLS modules
194 glib_dep = dependency('glib-2.0')
195 if glib_dep.type_name() == 'internal'
196 subp = subproject('glib-networking', required : get_option('tls'),
197 default_options: ['gnutls=auto', 'openssl=auto'])
199 giomodules += subp.get_variable('giomodules', [])
203 gst_plugins_doc_dep = custom_target('plugins-doc-cache',
204 command: [python3, '-c', 'print("Built all doc caches")'],
205 input: plugins_doc_caches,
206 output: 'plugins_doc_caches',
210 if meson.is_cross_build() or build_machine.system() == 'windows'
211 if get_option('doc').enabled()
212 error('Documentation enabled but building the doc while cross building or building on windows is not supported yet.')
215 documented_projects = ''
216 message('Documentation not built as building the documentation while cross building or building on windows is not supported yet.')
218 hotdoc_p = find_program('hotdoc', required : get_option('doc'))
219 if not hotdoc_p.found()
220 documented_projects = ''
221 message('Not building documentation as hotdoc was not found')
225 write_file_contents = '''
229 assert len(sys.argv) >= 3
231 contents = sys.argv[2]
233 with open(fname, 'w') as f:
238 output : 'GstDocumentedSubprojects',
240 '-c', write_file_contents,
245 if documented_projects != ''
246 subproject('gst-docs', required: get_option('doc').enabled())
247 message('Gst docs subprojects: ' + documented_projects)
250 all_plugins_paths = []
251 all_plugins_dirs = []
253 foreach plugin: all_plugins
254 plugin_path = plugin.get_variable('full_path')
255 all_plugins_paths += plugin_path
256 all_plugins_dirs += fs.parent(plugin_path)
257 plugins_names += plugin_path
260 # Work around meson bug: https://github.com/mesonbuild/meson/pull/6770
261 pathsep = host_machine.system() == 'windows' ? ';' : ':'
262 all_plugins_paths = pathsep.join(all_plugins_paths)
264 devenv = environment()
266 devenv.prepend('GST_PLUGIN_PATH', all_plugins_dirs)
268 # Make sure the current build directory is first in PATH so we prefer tools
269 # built here that links on gst-full instead instead of those built in
271 devenv.prepend('PATH', meson.current_build_dir())
273 devenv.set('CURRENT_GST', meson.current_source_dir())
274 devenv.set('GST_VERSION', meson.project_version())
275 devenv.set('GST_ENV', 'gst-' + meson.project_version())
276 devenv.set('GST_REGISTRY', meson.current_build_dir() / 'registry.dat')
277 devenv.set('GST_PLUGIN_SYSTEM_PATH', '')
278 meson.add_devenv(devenv)
280 generate_plugins_paths = find_program('scripts/generate_plugins_path.py')
282 output : 'GstPluginsPath.json',
283 command : [generate_plugins_paths,
289 cdata = configuration_data()
290 cdata.set_quoted('GST_API_VERSION', apiversion)
291 cdata.set_quoted('GETTEXT_PACKAGE', 'gstreamer-full-1.0')
292 cdata.set_quoted('PACKAGE_VERSION', gst_version)
293 cdata.set_quoted('GST_PACKAGE_ORIGIN', get_option('package-origin'))
294 configure_file(output : 'config.h', configuration : cdata)
295 configinc = include_directories('.')
296 gst_c_args = ['-DHAVE_CONFIG_H']
298 # Generate a .c file which declare and register all built plugins
299 all_plugin_names = ';'.join(plugins_names)
301 static_plugins = get_option('gst-full-plugins')
302 if static_plugins == '*'
303 static_plugins = all_plugin_names
305 generate_init_static_plugins = find_program('scripts/generate_init_static_plugins.py')
306 init_static_plugins_c = configure_file(
307 output: 'gstinitstaticplugins.c',
308 command : [generate_init_static_plugins,
310 '-p ' + static_plugins,
311 '-e ' + get_option('gst-full-elements'),
312 '-t ' + get_option('gst-full-typefind-functions'),
313 '-d ' + get_option('gst-full-device-providers'),
314 '-T ' + get_option('gst-full-dynamic-types'),
315 '--giomodules', ';'.join(giomodules),
319 gstfull_link_args = cc.get_supported_link_arguments(['-Wl,-Bsymbolic-functions'])
321 # Get a list of libraries that needs to be exposed in the ABI.
326 wanted_libs = ['gstreamer-1.0'] + get_option('gst-full-libraries')
327 all_libs = '*' in wanted_libs
329 foreach pkgname_library : all_libraries
330 pkg_name = pkgname_library[0]
331 lib_def = pkgname_library[1]
333 if pkg_name in wanted_libs or all_libs
334 if lib_def.has_key('lib')
335 exposed_deps += dependency(pkg_name)
336 incdir_deps += dependency(pkg_name).partial_dependency(includes: true, sources: true)
337 exposed_libs += [lib_def['lib']]
340 if lib_def.has_key('gir')
341 exposed_girs += lib_def['gir']
346 # glib and gobject are part of our public API. If we are using glib from the
347 # system then our pkg-config file must require it. If we built it as
348 # subproject then we need to link_whole it.
350 glib_dep = dependency('glib-2.0')
351 gobject_dep = dependency('gobject-2.0')
352 if gobject_dep.type_name() == 'internal'
353 glib_subproject = subproject('glib')
354 exposed_libs += glib_subproject.get_variable('libglib')
355 exposed_libs += glib_subproject.get_variable('libgobject')
357 glib_dep.partial_dependency(includes: true),
358 gobject_dep.partial_dependency(includes: true),
361 glib_deps = [glib_dep, gobject_dep]
365 if get_option('gst-full-version-script') != ''
366 symbol_map = meson.current_source_dir() / get_option('gst-full-version-script')
367 link_arg = '-Wl,--version-script=' + symbol_map
368 if cc.has_link_argument(link_arg)
369 gstfull_link_args += link_arg
370 link_deps += symbol_map
371 elif cc.get_id() == 'msvc'
372 warning('FIXME: Provide a def file to publish the public symbols')
374 warning('FIXME: Linker does not support the supplied version script (' + symbol_map + '), please disable the "gst-full-version-script" option')
379 foreach module : giomodules
380 giomodules_deps += dependency(module)
383 # Build both shared and static library
384 gstfull = both_libraries('gstreamer-full-1.0',
385 init_static_plugins_c,
386 link_args: gstfull_link_args,
387 link_whole : exposed_libs,
388 dependencies : [incdir_deps, glib_deps, all_plugins, giomodules_deps],
389 link_depends : link_deps,
393 gst_full_dep = declare_dependency(link_with: gstfull.get_shared_lib(),
394 dependencies : incdir_deps + glib_deps,
395 include_directories: include_directories('.')
398 gst_full_libs_private = cc.get_supported_link_arguments(['-Wl,--undefined=gst_init_static_plugins'])
399 if gst_full_libs_private == []
400 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.')
403 if not get_option('introspection').disabled()
405 foreach gir: exposed_girs
407 foreach include: gir.get('includes', [])
408 includes += [built_girs.get(include, include)]
412 'includes': includes,
413 'extra_args': gir.get('extra_args', []) + ['--add-include-path=' + meson.current_build_dir()],
416 built_girs += {gir.get('namespace') + '-' + gir.get('nsversion'): gnome.generate_gir(gstfull, kwargs: gir)[0]}
420 pkgconfig.generate(gstfull,
422 libraries_private: gst_full_libs_private,
423 subdirs : 'gstreamer-1.0')
424 meson.override_dependency('gstreamer-full-1.0', gst_full_dep)
426 if not get_option('tools').disabled()
427 foreach tool, data: all_tools
428 exe_name = '@0@-@1@'.format(tool, apiversion)
429 extra_args = data.get('extra_c_args', [])
430 sources = data.get('files')
431 install_tag = data.get('install_tag', 'bin')
433 foreach d : data.get('deps', [])
434 if d not in exposed_deps
442 install_tag: install_tag,
443 include_directories : [configinc],
444 dependencies : [gst_full_dep] + deps,
445 c_args: extra_args + gst_c_args + ['-DG_LOG_DOMAIN="@0@"'.format(exe_name)],
448 if data.has_key('man_page')
449 install_man(data.get('man_page'))
456 message('Building subprojects: ' + ', '.join(subprojects_names))
458 setenv = find_program('gst-env.py')
460 devenv_cmd = [setenv, '--builddir=@0@'.format(meson.global_build_root()),
461 '--srcdir=@0@'.format(meson.global_source_root())]
466 if meson.can_run_host_binaries() and build_machine.system() == 'linux' and host_machine.system() == 'windows'
467 # FIXME: Ideally we could get the wrapper directly from meson
468 devenv_cmd += ['--wine', host_machine.cpu_family() == 'x86_64' ? 'wine64' : 'wine32']
469 sysroot = meson.get_cross_property('sys_root')
472 devenv_cmd += ['--winepath', 'Z:' + join_paths(sysroot, 'bin')]
476 run_target('devenv', command : devenv_cmd)
478 if orc_subproject.found() and orc_update_targets.length() > 0
479 alias_target('update-orc-dist', orc_update_targets)
482 dotnet_format = find_program('dotnet-format', required: false)
483 if dotnet_format.found()
484 run_target('csharp_format_check',
485 command: [join_paths(meson.current_source_dir(), 'scripts', 'format-csharp'),
489 run_target('csharp_format_apply',
490 command: [join_paths(meson.current_source_dir(), 'scripts', 'format-csharp'),
496 'gstreamer-full library': building_full,
497 }, section: 'Build options', bool_yn: true, list_sep: ' ')
500 foreach tool, data: all_tools
506 }, section: 'Build options', list_sep: ', ')