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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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Add gstreamer-full library containing all plugins and their deps
When building with -Ddefault_library=static, also build a single library containing all built plugins. Any external dependencies are still dynamically linked. A monolithic library is easier to distribute, and in some envs like Android is required.
This commit is contained in:
Xavier Claessens
parent
7cf00627be
commit
35285c51b8
4 changed files with 154 additions and 0 deletions
29
gstinitstaticplugins.h
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29
gstinitstaticplugins.h
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@ -0,0 +1,29 @@
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/*
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* Copyright (C) 2019 Collabora Ltd.
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* Author: Xavier Claessens <xavier.claessens@collabora.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation
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* version 2.1 of the License.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#pragma once
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#include <gst/gst.h>
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G_BEGIN_DECLS
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void gst_init_static_plugins (void);
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G_END_DECLS
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84
meson.build
84
meson.build
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@ -9,6 +9,7 @@ gst_branch = 'master'
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build_system = build_machine.system()
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cc = meson.get_compiler('c')
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pkgconfig = import('pkgconfig')
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python3 = import('python').find_installation()
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# Ensure that we're not being run from inside the gst-uninstalled env
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# because that will confuse meson, and it might find the already-built
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@ -178,6 +179,89 @@ configure_file(
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all_plugins_paths]
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)
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# FIXME: Create a 'libraries' list in each subproject like we do for 'plugins'
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libraries_map = {
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# name: [subproject_name, variable_name]
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'gstreamer': ['gstreamer', 'libgst'],
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'base': ['gstreamer', 'gst_base'],
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'check': ['gstreamer', 'gst_check'],
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'controller': ['gstreamer', 'gst_controller'],
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'net': ['gstreamer', 'gst_net'],
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'allocators': ['gst-plugins-base', 'gstallocators'],
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'app': ['gst-plugins-base', 'gstapp'],
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'audio': ['gst-plugins-base', 'gstaudio'],
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'fft': ['gst-plugins-base', 'gstfft'],
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'pbutils': ['gst-plugins-base', 'pbutils'],
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'riff': ['gst-plugins-base', 'gstriff'],
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'rtp': ['gst-plugins-base', 'gst_rtp'],
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'rtsp': ['gst-plugins-base', 'gst_rtsp'],
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'sdp': ['gst-plugins-base', 'gstsdp'],
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'tag': ['gst-plugins-base', 'gsttag'],
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'video': ['gst-plugins-base', 'gstvideo'],
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'gl': ['gst-plugins-base', 'gstgl'],
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'bad-audio': ['gst-plugins-bad', 'gstbadaudio'],
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'bad-transcoder': ['gst-plugins-bad', 'gst_transcoder'],
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'codecparsers': ['gst-plugins-bad', 'gstcodecparsers'],
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'insertbin': ['gst-plugins-bad', 'gstinsertbin'],
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'mpegts': ['gst-plugins-bad', 'gstmpegts'],
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'player': ['gst-plugins-bad', 'gstplayer'],
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'sctp': ['gst-plugins-bad', 'libgstsctp'],
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'webrtc': ['gst-plugins-bad', 'gstwebrtc'],
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'vulkan': ['gst-plugins-bad', 'gstvulkan'],
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'rtsp-server': ['gst-rtsp-server', 'gst_rtsp_server'],
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}
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if get_option('default_library') == 'static'
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# Generate a .c file which declare and register all built plugins
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generate_init_static_plugins = find_program('scripts/generate_init_static_plugins.py')
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init_static_plugins_c = configure_file(
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output: 'gstinitstaticplugins.c',
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command : [generate_init_static_plugins,
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'@OUTPUT@',
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all_plugins_paths]
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)
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install_headers('gstinitstaticplugins.h', subdir : 'gstreamer-1.0/gst')
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# Get include paths in source tree
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gst_dep = subproject('gstreamer').get_variable('gst_dep')
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gst_includes = gst_dep.partial_dependency(includes: true, compile_args: true)
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# Get a list of libraries that needs to be exposed in the ABI.
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exposed_libs = []
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foreach name : get_option('gst-full-libraries') + ['gstreamer']
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info = libraries_map[name]
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exposed_libs += subproject(info[0]).get_variable(info[1])
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endforeach
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# glib and gobject are part of our public API. If we are using glib from the
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# system then our pkg-config file must require it. If we built it as
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# subproject then we need to link_whole it.
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requires = []
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gobject_dep = dependency('gobject-2.0', fallback: ['glib', 'libgobject_dep'])
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if gobject_dep.type_name() == 'internal'
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glib_subproject = subproject('glib')
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exposed_libs += glib_subproject.get_variable('libglib')
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exposed_libs += glib_subproject.get_variable('libgobject')
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else
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requires = ['glib-2.0', 'gobject-2.0']
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endif
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# Build both shared and static library
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gstfull = both_libraries('gstreamer-full-1.0',
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init_static_plugins_c,
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link_with : all_plugins,
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link_whole : exposed_libs,
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dependencies : gst_includes,
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install : true,
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)
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pkgconfig.generate(gstfull,
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requires: requires,
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subdirs : 'gstreamer-1.0')
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endif
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message('Building subprojects: ' + ', '.join(subprojects_names))
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setenv = find_program('gst-env.py')
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@ -12,6 +12,8 @@ option('sharp', type : 'feature', value : 'disabled')
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option('custom_subprojects', type : 'string', value : '', description : 'Comma-separated project names')
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option('gst-examples', type : 'feature', value : 'auto', description : 'Build gst-examples')
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option('rs', type : 'feature', value : 'disabled')
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option('gst-full-libraries', type : 'array', value : [],
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description : '''List of libraries to expose in gstreamer-full's ABI. gstreamer, glib and gobject are always included.''')
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# Common options, automatically inherited by subprojects
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option('examples', type : 'feature', value : 'auto', description : 'Build examples')
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39
scripts/generate_init_static_plugins.py
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39
scripts/generate_init_static_plugins.py
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@ -0,0 +1,39 @@
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#!/usr/bin/env python3
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import argparse
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import os
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from string import Template
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TEMPLATE = Template('''
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#include <gst/gst.h>
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$plugins_declaration
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void
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gst_init_static_plugins (void)
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{
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$plugins_registration
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}
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''')
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if __name__ == "__main__":
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parser = argparse.ArgumentParser()
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parser.add_argument(dest="output", help="Output file")
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parser.add_argument(dest="plugins", nargs=argparse.REMAINDER, help="The list of plugins")
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options = parser.parse_args()
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names = set()
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for plugin in options.plugins:
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filename = os.path.basename(plugin)
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if filename.startswith('libgst') and filename.endswith('.a'):
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names.add(filename[len('libgst'):-len('.a')])
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registration = ['GST_PLUGIN_STATIC_REGISTER(%s);' % name for name in names]
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declaration = ['GST_PLUGIN_STATIC_DECLARE(%s);' % name for name in names]
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with open(options.output, "w") as f:
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f.write(TEMPLATE.substitute({
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'plugins_declaration': '\n'.join(declaration),
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'plugins_registration': '\n '.join(registration),
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}))
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