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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
53 lines
1.8 KiB
Makefile
53 lines
1.8 KiB
Makefile
if ENABLE_BASH_COMPLETION
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bin_PROGRAMS = gst-completion-helper-@GST_API_VERSION@
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gst_completion_helper_@GST_API_VERSION@_SOURCES = gst-completion-helper.c
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gst_completion_helper_@GST_API_VERSION@_CFLAGS = $(GST_OBJ_CFLAGS)
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gst_completion_helper_@GST_API_VERSION@_LDADD = $(GST_OBJ_LIBS)
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bashhelpersdir = $(BASH_HELPERS_DIR)
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dist_bashhelpers_DATA = gst
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endif
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helpers_PROGRAMS = gst-plugin-scanner
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helpersdir=$(libexecdir)/gstreamer-$(GST_API_VERSION)
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gst_plugin_scanner_SOURCES = gst-plugin-scanner.c
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gst_plugin_scanner_CFLAGS = $(GST_OBJ_CFLAGS)
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gst_plugin_scanner_LDADD = $(GST_OBJ_LIBS)
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if HAVE_PTP
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helpers_PROGRAMS += gst-ptp-helper
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gst_ptp_helper_SOURCES = gst-ptp-helper.c
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gst_ptp_helper_CFLAGS = $(GST_OBJ_CFLAGS) $(GIO_CFLAGS)
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gst_ptp_helper_LDADD = $(GST_OBJ_LIBS) $(GIO_LIBS) $(CAP_LIBS)
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endif
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install-exec-hook:
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if HAVE_PTP
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if HAVE_PTP_HELPER_SETUID
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chown root $(DESTDIR)$(helpersdir)/gst-ptp-helper
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chmod u+s $(DESTDIR)$(helpersdir)/gst-ptp-helper
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endif
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if HAVE_PTP_HELPER_CAPABILITIES
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$(SETCAP) cap_net_bind_service,cap_net_admin+ep $(DESTDIR)$(helpersdir)/gst-ptp-helper
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endif
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endif
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if ENABLE_BASH_COMPLETION
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$(MKDIR_P) $(DESTDIR)$(BASH_HELPERS_DIR) && \
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cd $(DESTDIR)$(bindir) && \
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$(INSTALL) `echo "gst-completion-helper-" | sed '$(transform)'`@GST_API_VERSION@$(EXEEXT) \
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$(DESTDIR)$(BASH_HELPERS_DIR)/gst-completion-helper-@GST_API_VERSION@$(EXEEXT) && \
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rm `echo "gst-completion-helper-" | sed '$(transform)'`@GST_API_VERSION@$(EXEEXT)
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uninstall-hook:
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rm -f $(DESTDIR)$(BASH_HELPERS_DIR)/gst-completion-helper-@GST_API_VERSION@$(EXEEXT)
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endif
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# clean out the old one to make sure everything is udpated correctly
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# remove again after release
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CLEANFILES = plugin-scanner
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if ENABLE_BASH_COMPLETION
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CLEANFILES += gst-completion-helper-@GST_API_VERSION@
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endif
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