Commit graph

17 commits

Author SHA1 Message Date
Sebastian Dröge
8d77759834 ptp: Initial implementation of a PTP clock
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
2015-06-03 13:55:28 +02:00
Tim-Philipp Müller
6386934b3f tests: remove some pointless ancient code examples 2015-04-28 20:07:40 +01:00
HoonHee Lee
fadabe8b78 streamiddemux: Add streamiddemux element
Demultiplex a stream to multiple source pads based on the stream ids from the
stream-start events. This basically reverses the behaviour of funnel.

https://bugzilla.gnome.org/show_bug.cgi?id=707605
2015-03-12 14:42:18 +00:00
Jan Schmidt
f9f45834e7 netclock: Add simple network clock server and client examples 2015-01-21 22:27:18 +11:00
Wim Taymans
b2b934a928 tests: add memory example 2012-07-05 16:17:20 +02:00
Sebastian Dröge
5f4a965f67 gstxml: Deprecate GstXml and related functions
Pipeline serialisation to and from XML is horribly broken for all
but the most simple use cases, and will likely never be fixed.
Make sure everyone playing around with these tools is aware of
this, to avoid frustration. See countless bug reports in bugzilla.

Fixes bug #622685.
2010-06-25 18:25:40 +02:00
Tim-Philipp Müller
890042bc92 build: build examples subdirectories in parallel if requested 2010-03-30 12:35:05 +01:00
Jan Schmidt
ca482c75ce dist: Don't list the streams subdir twice in examples Makefile
Listing the 'streams' subdir twice in DIST_SUBDIRS breaks distcheck.
2009-09-01 12:08:17 +01:00
Sebastian Dröge
b0b971ff32 examples: Link rtpool-test to libpthread for using the POSIX threads
Also the other streams example can run without pthreads therefore
enable it even if pthreads are not available.

Fixes bug #592314.
2009-08-19 15:25:41 +02:00
Wim Taymans
fbaa49faf4 tests: conditionally compile the streams example
Detect pthreads.h in configure.ac
Only compile the streams example when pthreads.h is present.

Fixes #585039
2009-06-07 22:20:54 +02:00
Wim Taymans
cb9597a271 Add frame stepping in PAUSED example 2009-06-01 13:37:26 +02:00
Wim Taymans
5eccc07856 tests: add example app for stream-status
Add an example application that adjusts the thread priority of a task using the
stream-status messages.
2009-05-12 00:09:30 +02:00
Tim-Philipp Müller
40f4221ac5 Compile adapter test/example only if the required headers are available (fixes #391915).
Original commit message from CVS:
* configure.ac:
* tests/examples/Makefile.am:
Compile adapter test/example only if the required headers are
available (fixes #391915).
2007-01-02 17:01:33 +00:00
Jan Schmidt
6f363cd89b Do some optimisation work in GstAdapter to avoid copies in more cases.
Original commit message from CVS:
* Makefile.am:
* configure.ac:
* libs/gst/base/gstadapter.c: (gst_adapter_clear),
(gst_adapter_push), (gst_adapter_peek_into), (gst_adapter_peek),
(gst_adapter_flush), (gst_adapter_take), (gst_adapter_take_buffer):
* libs/gst/base/gstadapter.h:
* tests/check/libs/adapter.c: (create_and_fill_adapter),
(GST_START_TEST), (gst_adapter_suite):
* tests/examples/Makefile.am:
Do some optimisation work in GstAdapter to avoid copies in more cases.
It could still do slightly better by merging buffers when
gst_buffer_is_span_fast is true, but is already faster.
Also, avoid traversing a single-linked list to append each incoming
buffer inside the adapter.
Add simple test app that times the adapter behaviour in different
situations, and extend the unit test to check that bytes enter and
exit the adapter in their original order.
2006-11-09 14:37:38 +00:00
Thomas Vander Stichele
147373d4a7 Extract the manual examples again like we used to do.
Original commit message from CVS:
* configure.ac:
* docs/manual/advanced-autoplugging.xml:
* tests/examples/Makefile.am:
* tests/examples/manual/.cvsignore:
* tests/examples/manual/Makefile.am:
* tests/examples/manual/extract.pl:
Extract the manual examples again like we used to do.
Fix one of them.
2006-09-16 10:49:47 +00:00
Thomas Vander Stichele
94cb0d62f0 gst/Makefile.am
Original commit message from CVS:

* gst/Makefile.am
* tests/examples/Makefile.am:
fix --disable-parse build
2006-03-21 17:25:22 +00:00
Stefan Kost
15d4e4548d tests/examples/Makefile.am: added that too
Original commit message from CVS:
* tests/examples/Makefile.am:
added that too
2005-12-12 14:08:09 +00:00