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8d77759834
GstPtpClock implements a PTP (IEEE1588:2008) ordinary clock in slave-only mode, that allows a GStreamer pipeline to synchronize to a PTP network clock in some specific domain. The PTP subsystem can be initialized with gst_ptp_init(), which then starts a helper process to do the actual communication via the PTP ports. This is required as PTP listens on ports < 1024 and thus requires special privileges. Once this helper process is started, the main process will synchronize to all PTP domains that are detected on the selected interfaces. gst_ptp_clock_new() then allows to create a GstClock that provides the PTP time from a master clock inside a specific PTP domain. This clock will only return valid timestamps once the timestamps in the PTP domain are known. To check this, the GstPtpClock::internal-clock property and the related notify::clock signal can be used. Once the internal clock is not NULL, the PTP domain's time is known. Alternatively you can wait for this with gst_ptp_clock_wait_ready(). To gather statistics about the PTP clock synchronization, gst_ptp_statistics_callback_add() can be used. This gives the application the possibility to collect all kinds of statistics from the clock synchronization. https://bugzilla.gnome.org/show_bug.cgi?id=749391
95 lines
3.3 KiB
Makefile
95 lines
3.3 KiB
Makefile
lib_LTLIBRARIES = libgstnet-@GST_API_VERSION@.la
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libgstnet_@GST_API_VERSION@_includedir = $(includedir)/gstreamer-@GST_API_VERSION@/gst/net
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libgstnet_@GST_API_VERSION@_include_HEADERS = \
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net.h \
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gstnet.h \
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gstnetaddressmeta.h \
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gstnetclientclock.h \
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gstnetcontrolmessagemeta.h \
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gstnettimepacket.h \
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gstnettimeprovider.h \
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gstptpclock.h
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libgstnet_@GST_API_VERSION@_la_SOURCES = \
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gstnetaddressmeta.c \
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gstnetclientclock.c \
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gstnetcontrolmessagemeta.c \
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gstnettimepacket.c \
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gstnettimeprovider.c \
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gstptpclock.c
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noinst_HEADERS = gstptp_private.h
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libgstnet_@GST_API_VERSION@_la_CFLAGS = $(GST_OBJ_CFLAGS) $(GIO_CFLAGS)
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libgstnet_@GST_API_VERSION@_la_LIBADD = $(GST_OBJ_LIBS) $(GIO_LIBS) \
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$(top_builddir)/libs/gst/base/libgstbase-@GST_API_VERSION@.la
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libgstnet_@GST_API_VERSION@_la_LDFLAGS = $(GST_LIB_LDFLAGS) $(GST_ALL_LDFLAGS) $(GST_LT_LDFLAGS)
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# try to prevent packaging errors
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check-libexecdir-consistency:
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@if test "${GST_PTP_HELPER_INSTALLED}" != "${libexecdir}/gstreamer-$(GST_API_VERSION)/gst-ptp-helper"; then \
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echo "*** Inconsistent libexecdir! Please use ./configure --libexecdir=/foo/bar"; \
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echo "*** to set the libexecdir and not make libexecdir=/foo/bar or the like."; \
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echo "*** The same goes for prefix, libdir etc."; \
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echo "*** ${GST_PTP_HELPER_INSTALLED} != ${libexecdir}/gstreamer-$(GST_API_VERSION)/gst-ptp-helper"; \
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exit 1; \
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fi
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all-local: check-libexecdir-consistency
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CLEANFILES = *.gcno *.gcda *.gcov
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%.c.gcov: .libs/libgstnet_@GST_API_VERSION@_la-%.gcda %.c
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$(GCOV) -b -f -o $^ > $@.out
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gcov: $(libgstnet_@GST_API_VERSION@_la_SOURCES:=.gcov)
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if HAVE_INTROSPECTION
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BUILT_GIRSOURCES = GstNet-@GST_API_VERSION@.gir
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gir_headers=$(patsubst %,$(srcdir)/%, $(libgstnet_@GST_API_VERSION@_include_HEADERS))
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gir_sources=$(patsubst %,$(srcdir)/%, $(libgstnet_@GST_API_VERSION@_la_SOURCES))
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gir_cincludes=--c-include="gst/net/net.h"
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GstNet-@GST_API_VERSION@.gir: $(INTROSPECTION_SCANNER) libgstnet-@GST_API_VERSION@.la
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$(AM_V_GEN)PKG_CONFIG_PATH="$(GST_PKG_CONFIG_PATH)" GI_SCANNER_DISABLE_CACHE=yes\
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GST_PLUGIN_SYSTEM_PATH_1_0="" GST_PLUGIN_PATH_1_0="" GST_REGISTRY_UPDATE=no \
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$(INTROSPECTION_SCANNER) -v --namespace GstNet \
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--strip-prefix=Gst \
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--warn-all \
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--nsversion=@GST_API_VERSION@ \
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-I$(top_srcdir) \
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-I$(top_srcdir)/libs \
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-I$(top_builddir) \
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-I$(top_builddir)/libs \
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$(gir_cincludes) \
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--add-include-path=$(top_builddir)/gst \
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--library-path=$(top_builddir)/gst \
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--library=libgstnet-@GST_API_VERSION@.la \
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--include=Gst-@GST_API_VERSION@ \
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--include=Gio-2.0 \
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--libtool="${LIBTOOL}" \
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--pkg gstreamer-@GST_API_VERSION@ \
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--pkg gio-2.0 \
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--pkg-export="gstreamer-net-@GST_API_VERSION@" \
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--add-init-section="gst_init(NULL,NULL);" \
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--output $@ \
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$(gir_headers) \
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$(gir_sources)
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# INTROSPECTION_GIRDIR/INTROSPECTION_TYPELIBDIR aren't the right place to
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# install anything - we need to install inside our prefix.
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girdir = $(datadir)/gir-1.0
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gir_DATA = $(BUILT_GIRSOURCES)
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typelibsdir = $(libdir)/girepository-1.0/
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typelibs_DATA = $(BUILT_GIRSOURCES:.gir=.typelib)
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%.typelib: %.gir $(INTROSPECTION_COMPILER)
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$(AM_V_GEN)$(INTROSPECTION_COMPILER) --includedir=$(srcdir) --includedir=$(builddir) --includedir=$(top_builddir)/gst $(INTROSPECTION_COMPILER_OPTS) $< -o $(@F)
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CLEANFILES += $(BUILT_GIRSOURCES) $(typelibs_DATA)
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endif
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