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project('gst-libav', 'c', 'cpp',
version : '1.17.0.1',
meson_version : '>= 0.48.0',
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
api_version = '1.0'
libavfilter_dep = dependency('libavfilter', version: '>= 7.16.100',
fallback: ['FFmpeg', 'libavfilter_dep'])
libavformat_dep = dependency('libavformat', version: '>= 58.12.100',
fallback: ['FFmpeg', 'libavformat_dep'])
libavcodec_dep = dependency('libavcodec', version: '>= 58.18.100',
fallback: ['FFmpeg', 'libavcodec_dep'])
libavutil_dep = dependency('libavutil', version: '>= 56.14.100',
fallback: ['FFmpeg', 'libavutil_dep'])
libav_deps = [libavfilter_dep, libavformat_dep, libavcodec_dep, libavutil_dep]
cc = meson.get_compiler('c')
check_ffmpeg_src = '''#include <libavcodec/avcodec.h>
#if LIBAVCODEC_VERSION_MICRO >= 100
/* FFmpeg uses 100+ as its micro version */
#else
#error libav provider should be FFmpeg
#endif'''
libav_deps_type_name = ''
foreach dep: libav_deps
if libav_deps_type_name != '' and dep.type_name() != libav_deps_type_name
error('Libav deps must be either all internal or all external')
endif
libav_deps_type_name = dep.type_name()
endforeach
if dep.type_name() != 'internal'
if not cc.compiles(check_ffmpeg_src, dependencies : libav_deps, name : 'libav is provided by FFmpeg')
error('Uncompatible libavcodec found')
endif
endif
cdata = configuration_data()
cdata.set('LIBAV_SOURCE', '"system install"')
cdata.set('PACKAGE_VERSION', '"@0@"'.format(gst_version))
cdata.set('PACKAGE', '"gst-libav"')
# 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 FFMPEG Plug-ins source release'
elif gst_version_nano == 1
gst_package_name = 'GStreamer FFMPEG Plug-ins git'
else
gst_package_name = 'GStreamer FFMPEG Plug-ins prerelease'
endif
endif
cdata.set_quoted('GST_PACKAGE_NAME', gst_package_name)
cdata.set_quoted('GST_PACKAGE_ORIGIN', get_option('package-origin'))
check_headers = [['unistd.h', 'HAVE_UNISTD_H']]
foreach h : check_headers
if cc.has_header(h.get(0))
cdata.set(h.get(1), 1)
endif
endforeach
gst_req = '>= @0@.@1@.0'.format(gst_version_major, gst_version_minor)
gst_dep = dependency('gstreamer-1.0', version : gst_req,
fallback : ['gstreamer', 'gst_dep'])
gstbase_dep = dependency('gstreamer-base-1.0', version : gst_req,
fallback : ['gstreamer', 'gst_base_dep'])
gstvideo_dep = dependency('gstreamer-video-1.0', version : gst_req,
fallback : ['gst-plugins-base', 'video_dep'])
gstaudio_dep = dependency('gstreamer-audio-1.0', version : gst_req,
fallback : ['gst-plugins-base', 'audio_dep'])
gstpbutils_dep = dependency('gstreamer-pbutils-1.0', version : gst_req,
fallback : ['gst-plugins-base', 'pbutils_dep'])
libm = cc.find_library('m', required : false)
configure_file(output : 'config.h', configuration : cdata)
gst_libav_args = ['-DHAVE_CONFIG_H']
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)
language : 'c')
endif
# Symbol visibility
if cc.has_argument('-fvisibility=hidden')
add_project_arguments('-fvisibility=hidden', language: 'c')
endif
# Don't export any symbols from static ffmpeg libraries
if cc.has_link_argument('-Wl,--exclude-libs=ALL')
add_project_link_arguments('-Wl,--exclude-libs=ALL', language: 'c')
endif
# Disable strict aliasing
if cc.has_argument('-fno-strict-aliasing')
add_project_arguments('-fno-strict-aliasing', language: 'c')
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
warning_flags = [
'-Wmissing-declarations',
'-Wmissing-prototypes',
'-Wold-style-definition',
'-Wredundant-decls',
'-Wundef',
'-Wwrite-strings',
'-Wformat',
'-Wformat-nonliteral',
'-Wformat-security',
'-Winit-self',
'-Wmissing-include-dirs',
'-Waddress',
'-Wno-multichar',
'-Waggregate-return',
'-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
configinc = include_directories('.')
plugins_install_dir = '@0@/gstreamer-1.0'.format(get_option('libdir'))
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
plugins = []
subdir('ext/libav')
subdir('docs')
python3 = import('python').find_installation()
run_command(python3, '-c', 'import shutil; shutil.copy("hooks/pre-commit.hook", ".git/hooks/pre-commit")')
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