project('gstreamer', '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

host_system = host_machine.system()

apiversion = '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

prefix = get_option('prefix')

libexecdir = get_option('libexecdir')

helpers_install_dir = join_paths(libexecdir, 'gstreamer-1.0')

cc = meson.get_compiler('c')

cdata = configuration_data()

# 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

if cc.get_id() == 'msvc'

  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')

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

  # FIXME: Add an option for this if people ask for it

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

endif

# Symbol visibility

have_visibility_hidden = false

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")))'

  have_visibility_hidden = true

else

  export_define = 'extern'

endif

# Passing this through the command line would be too messy

cdata.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

cdata.set_quoted('GST_API_VERSION', apiversion)

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

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

cdata.set_quoted('LIBDIR', join_paths(prefix, get_option('libdir')))

cdata.set_quoted('GST_API_VERSION', '1.0')

cdata.set_quoted('GETTEXT_PACKAGE', 'gstreamer-1.0')

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

cdata.set_quoted('PACKAGE', 'gstreamer')

cdata.set_quoted('PACKAGE_NAME', 'GStreamer')

cdata.set_quoted('PACKAGE_STRING', 'GStreamer @0@'.format(gst_version))

cdata.set_quoted('PACKAGE_TARNAME', 'gstreamer')

cdata.set_quoted('PACKAGE_BUGREPORT', 'http://bugzilla.gnome.org/enter_bug.cgi?product=GStreamer')

cdata.set_quoted('PACKAGE_URL', '')

cdata.set_quoted('PACKAGE_VERSION', gst_version)

cdata.set_quoted('PLUGINDIR', join_paths(get_option('prefix'), get_option('libdir'), 'gstreamer-1.0'))

cdata.set_quoted('VERSION', gst_version)

cdata.set_quoted('GST_PLUGIN_SCANNER_INSTALLED', join_paths(prefix, helpers_install_dir, 'gst-plugin-scanner'))

cdata.set_quoted('GST_PTP_HELPER_INSTALLED', join_paths(prefix, helpers_install_dir, 'gst-ptp-helper'))

cdata.set_quoted('GST_PLUGIN_SUBDIR', get_option('libdir'),

  description: 'plugin directory path component, used to find plugins on relocatable builds on windows')

cdata.set_quoted('GST_PLUGIN_SCANNER_SUBDIR', libexecdir,

  description: 'libexecdir path component, used to find plugin-scanner on relocatable builds on windows')

cdata.set('GST_DISABLE_OPTION_PARSING', not get_option('option-parsing'))

mem_align_opt = get_option('memory-alignment')

if mem_align_opt == 'malloc'

  cdata.set('MEMORY_ALIGNMENT_MALLOC', 1)

elif mem_align_opt == 'pagesize'

  cdata.set('MEMORY_ALIGNMENT_PAGESIZE', 1)

else

  cdata.set('MEMORY_ALIGNMENT', mem_align_opt.to_int())

endif

if ['darwin', 'ios'].contains(host_system)

  cdata.set_quoted('GST_EXTRA_MODULE_SUFFIX', '.dylib')

endif

if gst_version_nano > 0

    # Have GST_ERROR message printed when running from git

    cdata.set('GST_LEVEL_DEFAULT', 'GST_LEVEL_ERROR')

else

    cdata.set('GST_LEVEL_DEFAULT', 'GST_LEVEL_NONE')

endif

# 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 source release'

  elif gst_version_nano == 1

    gst_package_name = 'GStreamer git'

  else

    gst_package_name = 'GStreamer prerelease'

  endif

endif

cdata.set_quoted('GST_PACKAGE_NAME', gst_package_name)

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

# These are only needed/used by the ABI tests

host_defines = [

  [ 'x86', 'HAVE_CPU_I386' ],

  [ 'x86_64', 'HAVE_CPU_X86_64' ],

  [ 'arm', 'HAVE_CPU_ARM' ],

  [ 'aarch64', 'HAVE_CPU_AARCH64' ],

  [ 'mips', 'HAVE_CPU_MIPS' ],

  [ 'powerpc', 'HAVE_CPU_PPC' ],

  [ 'powerpc64', 'HAVE_CPU_PPC64' ],

  [ 'alpha', 'HAVE_CPU_ALPHA' ],

  [ 'sparc', 'HAVE_CPU_SPARC' ],

  [ 'ia64', 'HAVE_CPU_IA64' ],

  [ 'hppa', 'HAVE_CPU_HPPA' ],

  [ 'm68k', 'HAVE_CPU_M68K' ],

  [ 's390', 'HAVE_CPU_S390' ],

]

foreach h : host_defines

  if h.get(0) == host_machine.cpu()

    cdata.set(h.get(1), 1)

  endif

endforeach

# FIXME: should really be called HOST_CPU or such

cdata.set_quoted('TARGET_CPU', host_machine.cpu())

check_headers = [

  'dlfcn.h',

  'inttypes.h',

  'memory.h',

  'poll.h',

  'stdint.h',

  'stdio_ext.h',

  'strings.h',

  'string.h',

  'sys/param.h',

  'sys/poll.h',

  'sys/prctl.h',

  'sys/socket.h',

  'sys/stat.h',

  'sys/times.h',

  'sys/time.h',

  'sys/types.h',

  'sys/utsname.h',

  'sys/wait.h',

  'ucontext.h',

  'unistd.h',

  'valgrind/valgrind.h',

  'sys/resource.h',

]

if host_system == 'windows'

  check_headers += ['winsock2.h']

endif

foreach h : check_headers

  if cc.has_header(h)

    define = 'HAVE_' + h.underscorify().to_upper()

    cdata.set(define, 1)

  endif

endforeach

if cc.has_member('struct tm', 'tm_gmtoff', prefix : '#include <time.h>')

  cdata.set('HAVE_TM_GMTOFF', 1)

endif

check_functions = [

  'gmtime_r',

  'sigaction',

  'getrusage',

  'fseeko',

  'ftello',

  'poll',

  'ppoll',

  'pselect',

  'getpagesize',

  'clock_gettime',

  # These are needed by libcheck

  'getline',

  'mkstemp',

  'alarm',

  'gettimeofday',

]

foreach f : check_functions

  if cc.has_function(f)

    define = 'HAVE_' + f.underscorify().to_upper()

    cdata.set(define, 1)

  endif

endforeach

if cc.has_function('localtime_r', prefix : '#include<time.h>')

  cdata.set('HAVE_LOCALTIME_R', 1)

  # Needed by libcheck

  cdata.set('HAVE_DECL_LOCALTIME_R', 1)

endif

if cc.links('''#include <pthread.h>

               int main() {

                 pthread_setname_np("example"); return 0;

               }''', name : 'pthread_setname_np(const char*)')

  cdata.set('HAVE_PTHREAD_SETNAME_NP_WITHOUT_TID', 1)

endif

# Check for posix timers and the monotonic clock

time_prefix = '#include <time.h>\n'

if cdata.has('HAVE_UNISTD_H')

  time_prefix += '#include <unistd.h>'

endif

posix_timers_src = time_prefix + '''

#if !defined(_POSIX_TIMERS) || _POSIX_TIMERS < 0 || !defined(CLOCK_REALTIME)

#error Either _POSIX_TIMERS or CLOCK_REALTIME not defined

#endif

'''

if cc.compiles(posix_timers_src, name : 'posix timers from time.h')

  cdata.set('HAVE_POSIX_TIMERS', 1)

endif

monotonic_clock_src = time_prefix + '''

#if !defined(_POSIX_MONOTONIC_CLOCK) || _POSIX_MONOTONIC_CLOCK < 0 || !defined(CLOCK_MONOTONIC)

#error Either _POSIX_MONOTONIC_CLOCK or CLOCK_MONOTONIC not defined

#endif

'''

if cc.compiles(monotonic_clock_src, name : 'monotonic clock from time.h')

  cdata.set('HAVE_MONOTONIC_CLOCK', 1)

endif

# Check for __uint128_t (gcc) by checking for 128-bit division

uint128_t_src = '''int main() {

static __uint128_t v1 = 100;

static __uint128_t v2 = 10;

static __uint128_t u;

u = v1 / v2;

}'''

if cc.compiles(uint128_t_src, name : '__uint128_t available')

  cdata.set('HAVE_UINT128_T', 1)

endif

# All supported platforms have long long now

cdata.set('HAVE_LONG_LONG', 1)

# We only want to use the __declspec(dllexport/import) dance in GST_EXPORT when

# building with MSVC

if cc.get_id() == 'msvc'

  cdata.set('GSTCONFIG_BUILT_WITH_MSVC', 1)

else

  cdata.set('GSTCONFIG_BUILT_WITH_MSVC', 0)

endif

# -------------------------------------------------------------------------------------

# config.h things needed by libcheck

# -------------------------------------------------------------------------------------

if cc.has_function('getpid')

  cdata.set('HAVE_GETPID', 1)

elif host_system == 'windows' and cc.has_function('_getpid')

  cdata.set('HAVE_PROCESS_H', 1) # Used by gstreamer too

  cdata.set('HAVE__GETPID', 1)

endif

if cc.has_function('strdup')

  cdata.set('HAVE_DECL_STRDUP', 1)

elif host_system == 'windows' and cc.has_function('_strdup')

  cdata.set('HAVE__STRDUP', 1) # Windows (MSVC)

endif

if host_system != 'windows'

  cdata.set('HAVE_FORK', 1)

else

  # libcheck requires HAVE_FORK to be 0 when fork() is not available

  cdata.set('HAVE_FORK', 0)

endif

if cc.has_function('strsignal')

  cdata.set('HAVE_DECL_STRSIGNAL', 1)

endif

# Check for availability of types

if not cc.has_type('clockid_t', prefix : '#include <time.h>')

  cdata.set('clockid_t', 'int')

endif

if not cc.has_type('timer_t', prefix : '#include <time.h>')

  cdata.set('timer_t', 'int')

endif

if not cc.has_members('struct timespec', 'tv_sec', 'tv_nsec',

		      prefix : '#include <time.h>')

  cdata.set('STRUCT_TIMESPEC_DEFINITION_MISSING', 1)

endif

if not cc.has_members('struct itimerspec', 'it_interval', 'it_value',

		      prefix : '#include <time.h>')

  cdata.set('STRUCT_ITIMERSPEC_DEFINITION_MISSING', 1)

endif

# Platform deps; only ws2_32 and execinfo for now

platform_deps = []

if host_system == 'windows'

  platform_deps = [cc.find_library('ws2_32')]

endif

backtrace_deps = []

unwind_dep = dependency('libunwind', required : get_option('libunwind'))

dw_dep = dependency('libdw', required: get_option('libdw'))

dbghelp_dep = dependency('DbgHelp', required : get_option('dbghelp'))

backtrace_deps = [unwind_dep, dw_dep, dbghelp_dep]

if unwind_dep.found()

  cdata.set('HAVE_UNWIND', 1)

  if dw_dep.found()

    cdata.set('HAVE_DW', 1)

  else

    message('Support for backtraces is partial only.')

  endif

elif cc.has_function('backtrace')

  cdata.set('HAVE_BACKTRACE', 1)

elif dbghelp_dep.found()

  cdata.set('HAVE_DBGHELP', 1)

else

  message('NO backtraces support.')

endif

if cc.has_header('execinfo.h')

  if cc.has_function('backtrace', prefix : '#include <execinfo.h>')

    cdata.set('HAVE_BACKTRACE', 1)

  else

    execinfo_dep = cc.find_library('execinfo', required : false)

    if execinfo_dep.found() and cc.has_function('backtrace', prefix : '#include <execinfo.h>', dependencies : execinfo_dep)

      cdata.set('HAVE_BACKTRACE', 1)

      platform_deps += execinfo_dep

    endif

  endif

endif

gst_debug = get_option('gst_debug')

if not gst_debug

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

endif

warning_flags = [

  '-Wmissing-declarations',

  '-Wmissing-prototypes',

  '-Wredundant-decls',

  '-Wundef',

  '-Wwrite-strings',

  '-Wformat',

  '-Wformat-nonliteral',

  '-Wformat-security',

  '-Wold-style-definition',

  '-Winit-self',

  '-Wmissing-include-dirs',

  '-Waddress',

  '-Waggregate-return',

  '-Wno-multichar',

  '-Wdeclaration-after-statement',

  '-Wvla',

  '-Wpointer-arith',

]

foreach extra_arg : warning_flags

  if cc.has_argument (extra_arg)

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

  endif

endforeach

# Used by the gstutils test

gmp_dep = cc.find_library('gmp', required : false)

cdata.set('HAVE_GMP', gmp_dep.found())

gsl_dep = cc.find_library('gsl', required : false)

gslcblas_dep = cc.find_library('gslcblas', required : false)

cdata.set('HAVE_GSL', gsl_dep.found() and gslcblas_dep.found())

test_deps = [gmp_dep, gsl_dep, gslcblas_dep]

# Used by gstinfo.c

dl_dep = cc.find_library('dl', required : false)

cdata.set('HAVE_DLADDR', cc.has_function('dladdr', dependencies : dl_dep))

cdata.set('GST_ENABLE_EXTRA_CHECKS', get_option('extra-checks'))

cdata.set('USE_POISONING', get_option('poisoning'))

configinc = include_directories('.')

libsinc = include_directories('libs')

privinc = include_directories('gst')

# Find dependencies

glib_dep = dependency('glib-2.0', version : '>=2.40.0',

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

gobject_dep = dependency('gobject-2.0',

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

gmodule_dep = dependency('gmodule-2.0',

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

if host_system == 'windows'

    gio_dep = dependency('gio-2.0',

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

else

    gio_dep = [dependency('gio-2.0',

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

               dependency('gio-unix-2.0',

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

endif

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

# Needed for timer_create/settime/delete

# Also provides clock_gettime in glibc < 2.17

rt_lib = cc.find_library('rt', required : false)

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", "/no/way/this/exists.reg", TRUE);' + \

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

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

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

gst_c_args = ['-DHAVE_CONFIG_H']

# FIXME: This is only needed on windows and probably breaks when

# default_library = 'both'. We should add this flag to static_c_args instead

# when Meson supports it: https://github.com/mesonbuild/meson/issues/3304

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

  gst_c_args += ['-DGST_STATIC_COMPILATION']

endif

# Used in gst/parse/meson.build and below

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

bashcomp_option = get_option('bash-completion')

bashcomp_dep = dependency('bash-completion', version : '>= 2.0', required : bashcomp_option)

bash_completions_dir = ''

bash_helpers_dir = ''

bashcomp_found = false

if bashcomp_dep.found()

  bashcomp_found = true

  bash_completions_dir = bashcomp_dep.get_pkgconfig_variable('completionsdir', define_variable: ['prefix', '.'])

  if bash_completions_dir == ''

    msg = 'Found bash-completion but the .pc file did not set \'completionsdir\'.'

    if bashcomp_option.enabled()

      error(msg)

    else

      message(msg)

    endif

    bashcomp_found = false

  endif

  bash_helpers_dir = bashcomp_dep.get_pkgconfig_variable('helpersdir', define_variable: ['prefix', '.'])

  if bash_helpers_dir == ''

    msg = 'Found bash-completion, but the .pc file did not set \'helpersdir\'.'

    if bashcomp_option.enabled()

      error(msg)

    else

      message(msg)

    endif

    bashcomp_found = false

  endif

endif

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

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')

subdir('libs')

subdir('plugins')

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

  subdir('tools')

endif

subdir('pkgconfig')

subdir('tests')

subdir('data')

# xgettext is optional (on Windows for instance)

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

  cdata.set('ENABLE_NLS', 1)

  subdir('po')

endif

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

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

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

install_data('gst-element-check-1.0.m4', install_dir : join_paths(get_option('datadir'), 'aclocal'))