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# -*- Mode: Python -*- vi:si:et:sw=4:sts=4:ts=4:syntax=python
from custom import GStreamer
from cerbero.utils import messages as m
from cerbero.utils import shell, determine_num_cargo_jobs
from pathlib import Path
import re
import shutil
import subprocess
import tempfile
class Recipe(recipe.Recipe):
name = 'gst-plugins-rs'
version = '0.12.0-alpha.1'
stype = SourceType.GIT
remotes = {'origin': 'https://gitlab.freedesktop.org/gstreamer/%(name)s.git'}
if GStreamer.tagged_for_release:
commit = f'gstreamer-{GStreamer.version}'
else:
commit = 'origin/main'
# Each plugin uses one or more of these licenses.
licenses = [{
License.Apachev2: ['LICENSE-APACHE'],
License.MIT: ['LICENSE-MIT'],
License.LGPLv2_1Plus: None,
}]
btype = BuildType.CARGO_C
cargoc_packages = [
'audiofx',
'aws',
'cdg',
'claxon',
'closedcaption',
'dav1d',
'fallbackswitch',
'ffv1',
'fmp4',
'gif',
'hlssink3',
'hsv',
'json',
'livesync',
'lewton',
'mp4',
'ndi',
'onvif',
'rav1e',
'regex',
'reqwest',
'raptorq',
'png',
'rtp',
'textahead',
'textwrap',
'threadshare',
'togglerecord',
'tracers',
'uriplaylistbin',
'videofx',
'webrtc',
'webrtchttp',
]
# If the system has less than 8GB ram or less than 4 cores,
# block parallelism at both recipe and architectural level.
if determine_num_cargo_jobs() == 1:
allow_parallel_build = False
allow_universal_parallel_build = False
# Needed for openssl
use_system_libs = True
deps = ['gstreamer-1.0', 'gst-plugins-base-1.0', 'pango', 'cairo',
'gst-plugins-bad-1.0', 'dav1d']
def enable_plugin(self, name, category):
if LibraryType.SHARED in self.library_type:
attr = f'files_plugins_{category}'
if not hasattr(self, attr):
setattr(self, attr, [])
self.update_categories()
f = getattr(self, attr)
f += [f'%(libdir)s/gstreamer-1.0/libgst{name}%(mext)s']
if LibraryType.STATIC in self.library_type:
attr = f'files_plugins_{category}_devel'
if not hasattr(self, attr):
setattr(self, attr, [])
d = getattr(self, attr)
d += [
f'%(libdir)s/gstreamer-1.0/libgst{name}.a',
f'%(libdir)s/gstreamer-1.0/libgst{name}.la',
]
def prepare(self):
# See "static plugins" bullet point in phase 2 at
# https://gitlab.freedesktop.org/gstreamer/cerbero/-/issues/381
if self.config.target_platform in (Platform.IOS, Platform.ANDROID):
self.library_type = LibraryType.STATIC
else:
self.library_type = LibraryType.SHARED
if self.config.target_platform != Platform.LINUX or self.config.cross_compiling():
self.deps.append('openssl')
plugin_files = {
'core': ['fallbackswitch', 'livesync', 'rstracers', 'threadshare',
'togglerecord'],
'net': ['aws', 'hlssink3', 'ndi', 'rsonvif', 'raptorq', 'rsrtp',
'reqwest', 'webrtchttp', 'rswebrtc'],
'effects': ['rsaudiofx', 'rsvideofx'],
'codecs': ['cdg', 'claxon', 'dav1d', 'rsclosedcaption', 'ffv1',
'fmp4', 'mp4', 'gif', 'hsv', 'lewton', 'rav1e', 'json',
'rspng', 'regex', 'textwrap', 'textahead'],
'playback': ['uriplaylistbin'],
}
for category, names in plugin_files.items():
for name in names:
self.enable_plugin(name, category)
self.cargoc_packages = [f'gst-plugin-{pkg}' for pkg in self.cargoc_packages]
# Build with Cerbero's latest glib version as minimum version
self.cargo_features += ['glib/v2_74', 'gio/v2_74']
# Enable assembly optimizations via nasm
self.cargo_features.append('gst-plugin-rav1e/asm')
# Build with the current GStreamer version as minimum version
components = ('', '-app', '-audio', '-base', '-check', '-net', '-pbutils',
'-plugin-tracers', '-rtp', '-sdp', '-utils', '-video', '-webrtc')
for each in components:
self.cargo_features.append(f'gst{each}/v1_22')
self.cargo_features.append('gst-plugin-webrtc/v1_22')
async def configure(self):
# Check that the Cargo.toml version matches the recipe version
toml_version = self.get_cargo_toml_version()
if toml_version != self.version:
msg = f'{self.name} version {self.version} doesn\'t match Cargo.toml version {toml_version}'
if GStreamer.tagged_for_release:
raise FatalError(msg)
else:
m.warning(msg)
await super().configure()
def post_install(self):
# Cargo-C currently can't install pc files into custom dirs, so we need
# to move these plugin pkgconfig files to the right place.
for f in self.files_list_by_category(self.DEVEL_CAT):
if not f.endswith('.pc') or not 'gstreamer-1.0' in f:
continue
name = os.path.basename(f)
src = os.path.join(self.config.libdir, 'pkgconfig', name)
dst = os.path.join(self.config.prefix, f)
if os.path.exists(src):
shutil.copy(src, dst)
# Cargo-C names MinGW DLLs as foo.dll instead of libfoo.dll
# https://github.com/lu-zero/cargo-c/issues/280
# It also follows MSVC convention for static/import libraries
if self.using_msvc():
for f in self.files_list_by_category(self.DEVEL_CAT):
if not f.endswith('.a'):
continue
dst = Path(self.config.prefix) / f
src = dst.with_name(f'{dst.stem[3:]}.lib')
if src.exists():
shutil.copy(src, dst)
else:
for f in self.dist_files_list():
if not f.endswith('.dll'):
continue
name = os.path.basename(f)
d = os.path.dirname(f)
src = os.path.join(self.config.prefix, d, f'{name[3:]}')
dst = os.path.join(self.config.prefix, f)
if os.path.exists(src):
shutil.copy(src, dst)
# if there's a .dll.a it also needs renaming
if os.path.exists(src + '.a'):
shutil.copy(src + '.a', dst + '.a')
libraries = [f for f in self.devel_files_list()
if f.endswith('.a')]
for f in libraries:
if self.config.target_platform in (Platform.ANDROID, Platform.LINUX):
shell.new_call([self.env['STRIP'], '--wildcard', '--strip-all',
'--keep-symbol=gst_plugin_*', f], self.config.prefix, env=self.env)
elif self.config.target_platform == Platform.IOS:
# Unlike ELF, for MachO Apple wants you to do
# Single-Object Prelink
source = Path(f)
# Only global symbols
# Only symbol names
# Use portable output format
# Skip undefined symbols
# Write pathname of the object file
manifest = subprocess.check_output([self.get_llvm_tool('nm'),
'-gjPUA', source.absolute()],
universal_newlines=True,
text=True)
# Now we need to match the symbols to the pattern
# Here's the catch: Apple strip is silly enough to be unable to
# -undefined suppress a .o because of the -two_level_namespace being
# the default post-10.1. So we need to determine which objects have
# matching symbols. The rest can be safely stripped.
# The symbol listing format is as follows:
# ./libgstrswebrtc.a[gstrswebrtc-3a8116aacab254c2.2u9b7sba8k2fvc9v.rcgu.o]: _gst_plugin_rswebrtc_get_desc T 500 0
# Field 1 has the object name between brackets.
# Field 2 is the symbol name.
symbol_pattern = re.compile('_gst_plugin_*')
with tempfile.TemporaryDirectory(prefix='cerbero', dir=self.config.home_dir) as tmp:
# List those symbols that will be kept
symbols_to_keep = set()
for line in manifest.stdout.splitlines():
data = line.split(' ')
symbol = data[1]
if symbol_pattern.match(symbol):
symbols_to_keep.add(symbol)
module = (
Path(tmp) / source.name).with_suffix('.symbols')
with module.open('w', encoding='utf-8') as f:
f.write('# Stripped by Cerbero\n')
for symbol in symbols_to_keep:
f.write(f'{symbol}\n')
m.log(f'Symbols to preserve in {source.absolute()}:')
for symbol in symbols_to_keep:
m.log(f'\t{symbol}')
# Unpack archive
m.log(f"Unpacking {source.absolute()} with ar")
shell.new_call(
[shutil.which('ar'), 'xv', source.absolute()], cmd_dir=tmp, logfile=self.logfile)
# Now everything is flat in the pwd
print('Performing Single-Object Prelinking')
prelinked_obj = (
Path(tmp) / source.name).with_suffix('.prelinked.o')
cmd = ' '.join([
shutil.which('ld'),
'-r',
'-exported_symbols_list',
module,
'-o',
prelinked_obj,
'*.o',
])
shell.new_call(cmd, cmd_dir=tmp,
shell=True, logfile=self.logfile)
# With the stripping done, all files now need to be rearchived
dest = Path(tmp) / source.name
print(f'Repacking library to {dest.absolute()}')
shell.new_call([shutil.which('libtool'), '-static', '-o',
dest.absolute(), prelinked_obj.absolute()], logfile=self.logfile)
# And now we paper over
os.replace(dest.absolute(), f)
super().post_install()
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