project('gst-plugins-base', 'c',

  version : '1.16.1',

  meson_version : '>= 0.47',

  default_options : [ 'warning_level=1',

                      'buildtype=debugoptimized' ])

gst_version = meson.project_version()

version_arr = gst_version.split('.')

gst_version_major = version_arr[0].to_int()

gst_version_minor = version_arr[1].to_int()

gst_version_micro = version_arr[2].to_int()

if version_arr.length() == 4

  gst_version_nano = version_arr[3].to_int()

else

  gst_version_nano = 0

endif

gst_version_is_dev = gst_version_minor % 2 == 1 and gst_version_micro < 90

have_cxx = add_languages('cpp', required : false)

have_objc = add_languages('objc', required : false)

glib_req = '>= 2.40.0'

orc_req = '>= 0.4.24'

gst_req = '>= @0@.@1@.0'.format(gst_version_major, gst_version_minor)

api_version = '1.0'

soversion = 0

# maintaining compatibility with the previous libtool versioning

# current = minor * 100 + micro

curversion = gst_version_minor * 100 + gst_version_micro

libversion = '@0@.@1@.0'.format(soversion, curversion)

osxversion = curversion + 1

plugins_install_dir = join_paths(get_option('libdir'), 'gstreamer-1.0')

cc = meson.get_compiler('c')

host_system = host_machine.system()

if cc.get_id() == 'msvc'

  # Ignore several spurious warnings for things gstreamer does very commonly

  # If a warning is completely useless and spammy, use '/wdXXXX' to suppress it

  # If a warning is harmless but hard to fix, use '/woXXXX' so it's shown once

  # NOTE: Only add warnings here if you are sure they're spurious

  add_project_arguments(

      '/wd4018', # implicit signed/unsigned conversion

      '/wd4146', # unary minus on unsigned (beware INT_MIN)

      '/wd4244', # lossy type conversion (e.g. double -> int)

      '/wd4305', # truncating type conversion (e.g. double -> float)

      cc.get_supported_arguments(['/utf-8']), # set the input encoding to utf-8

      language : 'c')

  # Disable SAFESEH with MSVC for plugins and libs that use external deps that

  # are built with MinGW

  noseh_link_args = ['/SAFESEH:NO']

else

  noseh_link_args = []

endif

if cc.has_link_argument('-Wl,-Bsymbolic-functions')

  add_project_link_arguments('-Wl,-Bsymbolic-functions', language : 'c')

endif

core_conf = configuration_data()

# Symbol visibility

if cc.get_id() == 'msvc'

  export_define = '__declspec(dllexport) extern'

elif cc.has_argument('-fvisibility=hidden')

  add_project_arguments('-fvisibility=hidden', language: 'c')

  export_define = 'extern __attribute__ ((visibility ("default")))'

else

  export_define = 'extern'

endif

# Passing this through the command line would be too messy

core_conf.set('GST_API_EXPORT', export_define)

# Disable strict aliasing

if cc.has_argument('-fno-strict-aliasing')

  add_project_arguments('-fno-strict-aliasing', language: 'c')

endif

# Define G_DISABLE_DEPRECATED for development versions

if gst_version_is_dev

  message('Disabling deprecated GLib API')

  add_project_arguments('-DG_DISABLE_DEPRECATED', language: 'c')

endif

cast_checks = get_option('gobject-cast-checks')

if cast_checks.disabled() or (cast_checks.auto() and not gst_version_is_dev)

  message('Disabling GLib cast checks')

  add_project_arguments('-DG_DISABLE_CAST_CHECKS', language: 'c')

endif

glib_asserts = get_option('glib-asserts')

if glib_asserts.disabled() or (glib_asserts.auto() and not gst_version_is_dev)

  message('Disabling GLib asserts')

  add_project_arguments('-DG_DISABLE_ASSERT', language: 'c')

endif

glib_checks = get_option('glib-checks')

if glib_checks.disabled() or (glib_checks.auto() and not gst_version_is_dev)

  message('Disabling GLib checks')

  add_project_arguments('-DG_DISABLE_CHECKS', language: 'c')

endif

check_headers = [

  ['HAVE_DLFCN_H', 'dlfcn.h'],

  ['HAVE_EMMINTRIN_H', 'emmintrin.h'],

  ['HAVE_INTTYPES_H', 'inttypes.h'],

  ['HAVE_MEMORY_H', 'memory.h'],

  ['HAVE_PROCESS_H', 'process.h'],

  ['HAVE_SMMINTRIN_H', 'smmintrin.h'],

  ['HAVE_STDINT_H', 'stdint.h'],

  ['HAVE_STDLIB_H', 'stdlib.h'],

  ['HAVE_STRINGS_H', 'strings.h'],

  ['HAVE_STRING_H', 'string.h'],

  ['HAVE_SYS_SOCKET_H', 'sys/socket.h'],

  ['HAVE_SYS_STAT_H', 'sys/stat.h'],

  ['HAVE_SYS_TYPES_H', 'sys/types.h'],

  ['HAVE_SYS_WAIT_H', 'sys/wait.h'],

  ['HAVE_UNISTD_H', 'unistd.h'],

  ['HAVE_WINSOCK2_H', 'winsock2.h'],

  ['HAVE_XMMINTRIN_H', 'xmmintrin.h'],

  ['HAVE_LINUX_DMA_BUF_H', 'linux/dma-buf.h'],

]

foreach h : check_headers

  if cc.has_header(h.get(1))

    core_conf.set(h.get(0), 1)

  endif

endforeach

check_functions = [

  ['HAVE_DCGETTEXT', 'dcgettext', '#include<libintl.h>'],

  ['HAVE_GMTIME_R', 'gmtime_r', '#include<time.h>'],

  ['HAVE_LRINTF', 'lrintf', '#include<math.h>'],

  ['HAVE_MMAP', 'mmap', '#include<sys/mman.h>'],

  ['HAVE_LOG2', 'log2', '#include<math.h>'],

]

libm = cc.find_library('m', required : false)

foreach f : check_functions

  if cc.has_function(f.get(1), prefix : f.get(2), dependencies : libm)

    core_conf.set(f.get(0), 1)

  endif

endforeach

core_conf.set('SIZEOF_CHAR', cc.sizeof('char'))

core_conf.set('SIZEOF_INT', cc.sizeof('int'))

core_conf.set('SIZEOF_LONG', cc.sizeof('long'))

core_conf.set('SIZEOF_SHORT', cc.sizeof('short'))

core_conf.set('SIZEOF_VOIDP', cc.sizeof('void*'))

core_conf.set_quoted('GETTEXT_PACKAGE', 'gst-plugins-base-1.0')

core_conf.set_quoted('LOCALEDIR', join_paths(get_option('prefix'), get_option('localedir')))

core_conf.set_quoted('PACKAGE', 'gst-plugins-base')

core_conf.set_quoted('VERSION', gst_version)

core_conf.set_quoted('PACKAGE_VERSION', gst_version)

core_conf.set_quoted('GST_API_VERSION', api_version)

core_conf.set_quoted('GST_DATADIR', join_paths(get_option('prefix'), get_option('datadir')))

core_conf.set_quoted('GST_LICENSE', 'LGPL')

install_plugins_helper = get_option('install_plugins_helper')

if install_plugins_helper == ''

  install_plugins_helper = join_paths(get_option('prefix'),

                                      get_option('libexecdir'),

                                      'gst-install-plugins-helper')

endif

core_conf.set_quoted('GST_INSTALL_PLUGINS_HELPER', install_plugins_helper)

warning_flags = [

  '-Wmissing-declarations',

  '-Wredundant-decls',

  '-Wundef',

  '-Wwrite-strings',

  '-Wformat',

  '-Wformat-nonliteral',

  '-Wformat-security',

  '-Winit-self',

  '-Wmissing-include-dirs',

  '-Waddress',

  '-Wno-multichar',

  '-Wvla',

  '-Wpointer-arith',

]

warning_c_flags = [

  '-Wmissing-prototypes',

  '-Wdeclaration-after-statement',

]

warning_cxx_flags = [

  '-Waggregate-return',

]

if have_cxx

  cxx = meson.get_compiler('cpp')

  foreach extra_arg : warning_cxx_flags

    if cxx.has_argument (extra_arg)

      add_project_arguments([extra_arg], language: 'cpp')

    endif

  endforeach

endif

foreach extra_arg : warning_flags

  if cc.has_argument (extra_arg)

    add_project_arguments([extra_arg], language: 'c')

  endif

  if have_cxx and cxx.has_argument (extra_arg)

    add_project_arguments([extra_arg], language: 'cpp')

  endif

endforeach

foreach extra_arg : warning_c_flags

  if cc.has_argument (extra_arg)

    add_project_arguments([extra_arg], language: 'c')

  endif

endforeach

# GStreamer package name and origin url

gst_package_name = get_option('package-name')

if gst_package_name == ''

  if gst_version_nano == 0

    gst_package_name = 'GStreamer Base Plug-ins source release'

  elif gst_version_nano == 1

    gst_package_name = 'GStreamer Base Plug-ins git'

  else

    gst_package_name = 'GStreamer Base Plug-ins prerelease'

  endif

endif

core_conf.set_quoted('GST_PACKAGE_NAME', gst_package_name)

core_conf.set_quoted('GST_PACKAGE_ORIGIN', get_option('package-origin'))

# FIXME: These should be configure options

core_conf.set_quoted('DEFAULT_VIDEOSINK', 'autovideosink')

core_conf.set_quoted('DEFAULT_AUDIOSINK', 'autoaudiosink')

# Set whether the audioresampling method should be detected at runtime

core_conf.set('AUDIORESAMPLE_FORMAT_' + get_option('audioresample_format').to_upper(), true)

gst_plugins_base_args = ['-DHAVE_CONFIG_H']

if get_option('default_library') == 'static'

  gst_plugins_base_args += ['-DGST_STATIC_COMPILATION']

endif

# X11 checks are for sys/ and tests/

x11_dep = dependency('x11', required : get_option('x11'))

# GLib checks are for the entire project

# Almost everything that uses glib also uses gobject

glib_deps = [dependency('glib-2.0', version : glib_req, fallback: ['glib', 'libglib_dep']),

             dependency('gobject-2.0', fallback: ['glib', 'libgobject_dep'])]

# GIO is used by the GIO plugin, and by the TCP, SDP, and RTSP plugins

gio_dep = dependency('gio-2.0', fallback: ['glib', 'libgio_dep'])

giounix_dep = dependency('', required: false)

if host_system != 'windows'

  giounix_dep = dependency('gio-unix-2.0', version : glib_req,

                           fallback: ['glib', 'libgiounix_dep'])

endif

gmodule_dep = dependency('gmodule-no-export-2.0',

                         fallback: ['glib', 'libgmodule_dep'])

# some of the examples can use gdk-pixbuf and GTK+3

gdk_pixbuf_dep = dependency('gdk-pixbuf-2.0', required : get_option('examples'))

gtk_dep = dependency('gtk+-3.0', version : '>= 3.10', required : get_option('examples'))

# TODO: https://github.com/mesonbuild/meson/issues/3941

if not get_option('x11').disabled()

  gtk_x11_dep = dependency('gtk+-x11-3.0', version : '>= 3.10', required : get_option('examples'))

else

  gtk_x11_dep = dependency('', required : false)

endif

# gtk+ quartz backend is only available on macOS

if host_system == 'darwin'

  gtk_quartz_dep = dependency('gtk+-quartz-3.0', version : '>= 3.10', required : get_option('examples'))

else

  gtk_quartz_dep = dependency('', required : false)

endif

core_conf.set('HAVE_X', x11_dep.found())

core_conf.set('HAVE_GIO_UNIX_2_0', giounix_dep.found())

if gio_dep.type_name() == 'pkgconfig'

    core_conf.set_quoted('GIO_MODULE_DIR',

        gio_dep.get_pkgconfig_variable('giomoduledir'))

    core_conf.set_quoted('GIO_LIBDIR',

        gio_dep.get_pkgconfig_variable('libdir'))

    core_conf.set_quoted('GIO_PREFIX',

        gio_dep.get_pkgconfig_variable('prefix'))

else

    core_conf.set_quoted('GIO_MODULE_DIR', join_paths(get_option('prefix'),

      get_option('libdir'), 'gio/modules'))

    core_conf.set_quoted('GIO_LIBDIR', join_paths(get_option('prefix'),

      get_option('libdir')))

    core_conf.set_quoted('GIO_PREFIX', get_option('prefix'))

endif

configinc = include_directories('.')

libsinc = include_directories('gst-libs')

# To use the subproject make subprojects directory

# and put gstreamer meson git there (symlinking is fine)

gst_dep = dependency('gstreamer-1.0', version : gst_req,

  fallback : ['gstreamer', 'gst_dep'])

gst_base_dep = dependency('gstreamer-base-1.0', version : gst_req,

  fallback : ['gstreamer', 'gst_base_dep'])

gst_net_dep = dependency('gstreamer-net-1.0', version : gst_req,

  fallback : ['gstreamer', 'gst_net_dep'])

gst_check_dep = dependency('gstreamer-check-1.0', version : gst_req,

  required : get_option('tests'),

  fallback : ['gstreamer', 'gst_check_dep'])

gst_controller_dep = dependency('gstreamer-controller-1.0', version : gst_req,

  fallback : ['gstreamer', 'gst_controller_dep'])

have_orcc = false

orcc_args = []

# Used by various libraries/elements that use Orc code

orc_dep = dependency('orc-0.4', version : orc_req, required : get_option('orc'),

    fallback : ['orc', 'orc_dep'])

orcc = find_program('orcc', required : get_option('orc'))

if orc_dep.found() and orcc.found()

  have_orcc = true

  orcc_args = [orcc, '--include', 'glib.h']

  core_conf.set('HAVE_ORC', 1)

else

  message('Orc Compiler not found or disabled, will use backup C code')

  core_conf.set('DISABLE_ORC', 1)

endif

# Used to build SSE* things in audio-resampler

sse_args = '-msse'

sse2_args = '-msse2'

sse41_args = '-msse4.1'

have_sse = cc.has_argument(sse_args)

have_sse2 = cc.has_argument(sse2_args)

have_sse41 = cc.has_argument(sse41_args)

if host_machine.cpu_family() == 'arm'

  if cc.compiles('''

#include <arm_neon.h>

int32x4_t testfunc(int16_t *a, int16_t *b) {

  asm volatile ("vmull.s16 q0, d0, d0" : : : "q0");

  return vmull_s16(vld1_s16(a), vld1_s16(b));

}

''', name : 'NEON support')

    core_conf.set('HAVE_ARM_NEON', true)

  endif

endif

if gst_dep.type_name() == 'internal'

    gst_proj = subproject('gstreamer')

    if not gst_proj.get_variable('gst_debug')

        message('GStreamer debug system is disabled')

        add_project_arguments('-Wno-unused', language: 'c')

    else

        message('GStreamer debug system is enabled')

    endif

else

    # We can't check that in the case of subprojects as we won't

    # be able to build against an internal dependency (which is not built yet)

    if not cc.compiles('''

#include <gst/gstconfig.h>

#ifdef GST_DISABLE_GST_DEBUG

#error "debugging disabled, make compiler fail"

#endif''' , dependencies: gst_dep)

        message('GStreamer debug system is disabled')

        add_project_arguments('-Wno-unused', language: 'c')

    else

        message('GStreamer debug system is enabled')

    endif

endif

gir = find_program('g-ir-scanner', required : get_option('introspection'))

gnome = import('gnome')

build_gir = gir.found() and not meson.is_cross_build()

gir_init_section = [ '--add-init-section=extern void gst_init(gint*,gchar**);' + \

    'g_setenv("GST_REGISTRY_DISABLE", "yes", TRUE);' + \

    'g_setenv("GST_REGISTRY_1.0", "@0@", TRUE);'.format(meson.current_build_dir() + '/gir_empty_registry.reg') + \

    'g_setenv("GST_PLUGIN_PATH_1_0", "", TRUE);' + \

    'g_setenv("GST_PLUGIN_SYSTEM_PATH_1_0", "", TRUE);' + \

    'gst_init(NULL,NULL);', '--quiet']

pkgconfig = import('pkgconfig')

plugins_pkgconfig_install_dir = join_paths(plugins_install_dir, 'pkgconfig')

if get_option('default_library') == 'shared'

  # If we don't build static plugins there is no need to generate pc files

  plugins_pkgconfig_install_dir = disabler()

endif

subdir('gst-libs')

subdir('gst')

subdir('ext')

subdir('sys')

if not get_option('tools').disabled()

  subdir('tools')

endif

subdir('tests')

subdir('pkgconfig')

# xgettext is optional (on Windows for instance)

if find_program('xgettext', required : get_option('nls')).found()

  core_conf.set('ENABLE_NLS', 1)

  subdir('po')

endif

if build_machine.system() == 'windows'

  message('Disabling gtk-doc while building on Windows')

else

  if find_program('gtkdoc-scan', required : get_option('gtk_doc')).found()

    subdir('docs')

  else

    message('Not building documentation as gtk-doc was not found')

  endif

endif

# Use core_conf after all subdirs have set values

configure_file(output : 'config.h', configuration : core_conf)

python3 = import('python').find_installation()

run_command(python3, '-c', 'import shutil; shutil.copy("hooks/pre-commit.hook", ".git/hooks/pre-commit")')