mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-20 08:41:07 +00:00
a0e6278dba
Starting with Meson 0.62, meson automatically populates the variables
list in the pkgconfig file if you reference builtin directories in the
pkgconfig file (whether via a custom pkgconfig variable or elsewhere).
We need this, because ${prefix}/libexec is a hard-coded value which is
incorrect on, for example, Debian.
Bump requirement to 0.62, and remove version compares that retained
support for older Meson versions.
Fixes https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/1245
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3061>
245 lines
8.5 KiB
Meson
245 lines
8.5 KiB
Meson
project('gst-libav', 'c',
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version : '1.21.0.1',
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meson_version : '>= 0.62',
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default_options : [ 'warning_level=1',
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'buildtype=debugoptimized' ])
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gst_version = meson.project_version()
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version_arr = gst_version.split('.')
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gst_version_major = version_arr[0].to_int()
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gst_version_minor = version_arr[1].to_int()
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gst_version_micro = version_arr[2].to_int()
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if version_arr.length() == 4
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gst_version_nano = version_arr[3].to_int()
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else
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gst_version_nano = 0
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endif
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gst_version_is_stable = gst_version_minor.is_even()
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gst_version_is_dev = gst_version_minor.is_odd() and gst_version_micro < 90
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api_version = '1.0'
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libavfilter_dep = dependency('libavfilter', version: '>= 7.16.100',
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fallback: ['FFmpeg', 'libavfilter_dep'])
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libavformat_dep = dependency('libavformat', version: '>= 58.12.100',
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fallback: ['FFmpeg', 'libavformat_dep'])
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libavcodec_dep = dependency('libavcodec', version: '>= 58.18.100',
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fallback: ['FFmpeg', 'libavcodec_dep'])
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libavutil_dep = dependency('libavutil', version: '>= 56.14.100',
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fallback: ['FFmpeg', 'libavutil_dep'])
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libav_deps = [libavfilter_dep, libavformat_dep, libavcodec_dep, libavutil_dep]
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cc = meson.get_compiler('c')
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static_build = get_option('default_library') == 'static'
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check_ffmpeg_src = '''#include <libavcodec/avcodec.h>
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#if LIBAVCODEC_VERSION_MICRO >= 100
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/* FFmpeg uses 100+ as its micro version */
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#else
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#error libav provider should be FFmpeg
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#endif'''
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libav_deps_type_name = ''
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foreach dep: libav_deps
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if libav_deps_type_name != '' and dep.type_name() != libav_deps_type_name
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error('Libav deps must be either all internal or all external')
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endif
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libav_deps_type_name = dep.type_name()
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endforeach
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if dep.type_name() != 'internal'
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if not cc.compiles(check_ffmpeg_src, dependencies : libav_deps, name : 'libav is provided by FFmpeg')
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error('Uncompatible libavcodec found')
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endif
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endif
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cdata = configuration_data()
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cdata.set('LIBAV_SOURCE', '"system install"')
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cdata.set('PACKAGE_VERSION', '"@0@"'.format(gst_version))
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cdata.set('PACKAGE', '"gst-libav"')
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# GStreamer package name and origin url
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gst_package_name = get_option('package-name')
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if gst_package_name == ''
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if gst_version_nano == 0
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gst_package_name = 'GStreamer FFMPEG Plug-ins source release'
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elif gst_version_nano == 1
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gst_package_name = 'GStreamer FFMPEG Plug-ins git'
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else
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gst_package_name = 'GStreamer FFMPEG Plug-ins prerelease'
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endif
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endif
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cdata.set_quoted('GST_PACKAGE_NAME', gst_package_name)
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cdata.set_quoted('GST_PACKAGE_ORIGIN', get_option('package-origin'))
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check_headers = [['unistd.h', 'HAVE_UNISTD_H']]
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foreach h : check_headers
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if cc.has_header(h.get(0))
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cdata.set(h.get(1), 1)
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endif
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endforeach
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if gst_version_is_stable
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gst_req = '>= @0@.@1@.0'.format(gst_version_major, gst_version_minor)
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else
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gst_req = '>= ' + gst_version
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endif
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gst_dep = dependency('gstreamer-1.0', version : gst_req,
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fallback : ['gstreamer', 'gst_dep'])
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gstbase_dep = dependency('gstreamer-base-1.0', version : gst_req,
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fallback : ['gstreamer', 'gst_base_dep'])
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gstcheck_dep = dependency('gstreamer-check-1.0', version : gst_req,
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required : get_option('tests'),
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fallback : ['gstreamer', 'gst_check_dep'])
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gstvideo_dep = dependency('gstreamer-video-1.0', version : gst_req,
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fallback : ['gst-plugins-base', 'video_dep'])
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gstaudio_dep = dependency('gstreamer-audio-1.0', version : gst_req,
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fallback : ['gst-plugins-base', 'audio_dep'])
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gstpbutils_dep = dependency('gstreamer-pbutils-1.0', version : gst_req,
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fallback : ['gst-plugins-base', 'pbutils_dep'])
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libm = cc.find_library('m', required : false)
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gst_libav_args = ['-DHAVE_CONFIG_H']
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if cc.get_id() == 'msvc'
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msvc_args = [
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# Ignore several spurious warnings for things gstreamer does very commonly
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# If a warning is completely useless and spammy, use '/wdXXXX' to suppress it
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# If a warning is harmless but hard to fix, use '/woXXXX' so it's shown once
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# NOTE: Only add warnings here if you are sure they're spurious
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'/wd4018', # implicit signed/unsigned conversion
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'/wd4146', # unary minus on unsigned (beware INT_MIN)
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'/wd4244', # lossy type conversion (e.g. double -> int)
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'/wd4305', # truncating type conversion (e.g. double -> float)
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cc.get_supported_arguments(['/utf-8']), # set the input encoding to utf-8
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]
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if gst_version_is_dev
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# Enable some warnings on MSVC to match GCC/Clang behaviour
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msvc_args += cc.get_supported_arguments([
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'/we4002', # too many actual parameters for macro 'identifier'
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'/we4003', # not enough actual parameters for macro 'identifier'
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'/we4013', # 'function' undefined; assuming extern returning int
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'/we4020', # 'function' : too many actual parameters
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'/we4027', # function declared without formal parameter list
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'/we4029', # declared formal parameter list different from definition
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'/we4033', # 'function' must return a value
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'/we4045', # 'array' : array bounds overflow
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'/we4047', # 'operator' : 'identifier1' differs in levels of indirection from 'identifier2'
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'/we4053', # one void operand for '?:'
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'/we4062', # enumerator 'identifier' in switch of enum 'enumeration' is not handled
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'/we4098', # 'function' : void function returning a value
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'/we4101', # 'identifier' : unreferenced local variable
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'/we4189', # 'identifier' : local variable is initialized but not referenced
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])
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endif
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add_project_arguments(msvc_args, language: ['c', 'cpp'])
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endif
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# glib doesn't support unloading, which means that unloading and reloading
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# any library that registers static types will fail
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if cc.has_link_argument('-Wl,-z,nodelete')
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add_project_link_arguments('-Wl,-z,nodelete', language: 'c')
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endif
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# Symbol visibility
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if cc.has_argument('-fvisibility=hidden')
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add_project_arguments('-fvisibility=hidden', language: 'c')
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endif
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# Don't export any symbols from static ffmpeg libraries
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if cc.has_link_argument('-Wl,--exclude-libs=ALL')
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add_project_link_arguments('-Wl,--exclude-libs=ALL', language: 'c')
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endif
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# Disable strict aliasing
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if cc.has_argument('-fno-strict-aliasing')
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add_project_arguments('-fno-strict-aliasing', language: 'c')
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endif
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if gst_dep.type_name() == 'internal'
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gst_proj = subproject('gstreamer')
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if not gst_proj.get_variable('gst_debug')
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message('GStreamer debug system is disabled')
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add_project_arguments('-Wno-unused', language: 'c')
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else
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message('GStreamer debug system is enabled')
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endif
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else
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# We can't check that in the case of subprojects as we won't
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# be able to build against an internal dependency (which is not built yet)
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if not cc.compiles('''
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#include <gst/gstconfig.h>
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#ifdef GST_DISABLE_GST_DEBUG
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#error "debugging disabled, make compiler fail"
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#endif''' , dependencies: gst_dep)
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message('GStreamer debug system is disabled')
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add_project_arguments('-Wno-unused', language: 'c')
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else
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message('GStreamer debug system is enabled')
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endif
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endif
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warning_flags = [
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'-Wmissing-declarations',
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'-Wmissing-prototypes',
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'-Wold-style-definition',
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'-Wredundant-decls',
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'-Wundef',
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'-Wwrite-strings',
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'-Wformat',
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'-Wformat-nonliteral',
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'-Wformat-security',
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'-Winit-self',
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'-Wmissing-include-dirs',
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'-Waddress',
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'-Wno-multichar',
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'-Waggregate-return',
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'-Wvla',
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'-Wpointer-arith',
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]
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foreach extra_arg : warning_flags
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if cc.has_argument (extra_arg)
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add_project_arguments([extra_arg], language: 'c')
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endif
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endforeach
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configinc = include_directories('.')
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plugins_install_dir = '@0@/gstreamer-1.0'.format(get_option('libdir'))
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pkgconfig = import('pkgconfig')
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plugins_pkgconfig_install_dir = join_paths(plugins_install_dir, 'pkgconfig')
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if get_option('default_library') == 'shared'
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# If we don't build static plugins there is no need to generate pc files
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plugins_pkgconfig_install_dir = disabler()
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endif
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plugins = []
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subdir('ext/libav')
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subdir('docs')
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subdir('tests')
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# Set release date
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if gst_version_nano == 0
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extract_release_date = find_program('scripts/extract-release-date-from-doap-file.py')
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run_result = run_command(extract_release_date, gst_version, files('gst-libav.doap'), check: true)
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release_date = run_result.stdout().strip()
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cdata.set_quoted('GST_PACKAGE_RELEASE_DATETIME', release_date)
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message('Package release date: ' + release_date)
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endif
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configure_file(output: 'config.h', configuration: cdata)
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gst_plugins = []
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foreach plugin: plugins
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pkgconfig.generate(plugin, install_dir: plugins_pkgconfig_install_dir)
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dep = declare_dependency(link_with: plugin, variables: {'full_path': plugin.full_path()})
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meson.override_dependency(plugin.name(), dep)
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gst_plugins += [dep]
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endforeach
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