project('gstreamer-full', 'c', version : '1.19.3.1', meson_version : '>= 0.59', 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']) 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 gst-uninstalled env # 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_uninstalled = ''' import os assert('GST_ENV' not in os.environ) ''' cmdres = run_command(python3, '-c', ensure_not_uninstalled) if cmdres.returncode() != 0 error('Do not run `ninja` or `meson` for gst-build inside the uninstalled 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")') # Ensure that the user does not have Strawberry Perl in PATH, since it ships # with a pkg-config.bat and broken pkgconfig files for libffi and zlib. Will # cause a build error, such as in # https://gitlab.freedesktop.org/gstreamer/gst-build/-/issues/41 ensure_no_strawberry_perl = ''' import os assert(r'Strawberry\perl\bin' not in os.environ['PATH']) ''' if build_system == 'windows' and meson.version().version_compare('<0.60.0') cmdres = run_command(python3, '-c', ensure_no_strawberry_perl) if cmdres.returncode() != 0 error('You have Strawberry Perl in PATH which is known to cause build issues with Meson < 0.60.0. Please remove it from PATH, uninstall it, or upgrade Meson.') 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') if ret.returncode() == 0 and ret.stdout().to_lower() == 'msys' ret = run_command(uname, '-r') # 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 # Ordered list of subprojects (dict has no ordering guarantees) subprojects = [ ['gstreamer', {'build-hotdoc': true}], ['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}], ['gst-omx', { 'option': get_option('omx'), 'build-hotdoc': true}], ['gstreamer-sharp', { 'option': get_option('sharp') }], ['pygobject', { 'option': get_option('python'), 'match_gst_version': false, 'sysdep': 'pygobject-3.0', 'sysdep_version': '>= 3.38.1' }], ['gst-python', { 'option': get_option('python')}], ['gst-examples', { 'option': get_option('gst-examples'), 'match_gst_versions': false}], ['gst-plugins-rs', { 'option': get_option('rs'), 'match_gst_version': false}], ] symlink = ''' import os os.symlink(os.path.join('@1@', 'subprojects', '@0@'), os.path.join('@1@', '@0@')) ''' if build_system == 'windows' subproject('win-flex-bison-binaries') subproject('win-nasm') elif build_system == 'darwin' subproject('macos-bison-binary') endif orc_subproject = subproject('orc', required: get_option('orc')) subprojects_names = [] plugins_doc_caches = [] orc_update_targets = [] all_plugins = [] # 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) if match_gst_version subproj = subproject(project_name, version: gst_version, required: is_required) elif sysdep != '' sysdep_dep = dependency(sysdep, version: sysdep_version, required: false) if not sysdep_dep.found() subproj = subproject(project_name, required: is_required) endif else subproj = subproject(project_name, required: is_required) endif if subproj.found() plugins = subproj.get_variable('plugins', []) all_plugins += plugins all_libraries += subproj.get_variable('libraries', []) orc_update_targets += subproj.get_variable('orc_update_targets', []) subprojects_names += [project_name] cmdres = run_command(python3, '-c', symlink.format(project_name, meson.current_source_dir())) if cmdres.returncode() == 0 message('Created symlink to ' + project_name) endif if not meson.is_cross_build() and build_infos.get('build-hotdoc', false) if plugins.length() > 0 plugins_doc_caches += [subproj.get_variable('plugins_doc_dep', [])] endif 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 glib_dep = dependency('glib-2.0') if glib_dep.type_name() == 'internal' subproject('glib-networking', required : get_option('tls'), default_options: ['gnutls=auto', 'openssl=auto']) endif 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, ) 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 != '' subproject('gst-docs', required: get_option('doc').enabled()) message('Gst docs subprojects: ' + documented_projects) endif all_plugins_paths = [] all_plugins_dirs = [] foreach plugin: all_plugins all_plugins_paths += plugin.full_path() all_plugins_dirs += fs.parent(plugin.full_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() devenv.set('GST_PLUGIN_PATH', all_plugins_dirs) 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 get_option('default_library') == 'static' # Generate a .c file which declare and register all built plugins plugins_names = [] foreach plugin: all_plugins plugins_names += plugin.full_path() endforeach 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') ] ) 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_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] lib_def = pkgname_library[1] if pkg_name in wanted_libs or all_libs if lib_def.has_key('lib') 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. 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 error('Failed to link with version script (' + symbol_map + '), check logs for details') endif endif # Build both shared and static library gstfull = both_libraries('gstreamer-full-1.0', init_static_plugins_c, link_with : all_plugins, link_args: gstfull_link_args, link_whole : exposed_libs, dependencies : incdir_deps + glib_deps, link_depends : link_deps, install : true, ) gst_full_dep = declare_dependency(link_with: gstfull.get_shared_lib(), 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 not get_option('introspection').disabled() 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, subdirs : 'gstreamer-1.0') meson.override_dependency('gstreamer-full-1.0', gst_full_dep) endif foreach custom_subproj: get_option('custom_subprojects').split(',') if custom_subproj != '' message ('Adding custom subproject ' + custom_subproj) subproject(custom_subproj) subprojects_names += [custom_subproj] endif endforeach message('Building subprojects: ' + ', '.join(subprojects_names)) setenv = find_program('gst-env.py') devenv_cmd = [setenv, '--builddir=@0@'.format(meson.project_build_root()), '--gstbuilddir=@0@'.format(meson.current_build_dir()), '--srcdir=@0@'.format(meson.project_source_root())] subdir('tests') 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('uninstalled', command : devenv_cmd) 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 summary({ 'gstreamer-full': get_option('default_library') == 'static', }, section: 'Build options', bool_yn: true, list_sep: ' ')