This can be used to identify buffers for which a higher percentage
of redundancy should be allocated when performing forward error
correction, or to prevent still video frames from being dropped by
elements due to QoS.
https://bugzilla.gnome.org/show_bug.cgi?id=793008
The following case can happen when two thread try to activate and
deactivate a pad at the same time:
T1: starts to deactivate, calls pre_activate(), sets in_activation
to TRUE and carries on
T2: starts to activate, calls pre_activate(), in_activation is TRUE
so it waits on the GCond
T1: calls post_activate(), tries to acquire the streaming lock ..
but can't because T2 is currently holding it
With this patch, the deadlock will no longer happen but does not
solve the problem that:
T2: will resume activation of the pad, set the pad mode to the target
one (PUSH or PULL) and eventually the streaming lock gets released.
T1: is able to finish calling post_activate() ... but ... the pad
wasn't deactivated (T2 was the last one to "activate" the pad.
https://bugzilla.gnome.org/show_bug.cgi?id=792341
This is a better fit given that the function docs say this
should (only) be used for interval measurements, but also
this seems to give much better granularity on Windows
systems, where before this change there would often be
10-20 lines of debug log with the same timestamp up front.
Fix refcounting issue when plugin was loaded already.
gst_plugin_load() is supposed to return a ref, so it
must always return a ref.
This also fixes the gstplugin unit test on windows where
fork is not available and where test_load_coreelements()
would unref a plugin ref it didn't get and then mess up
the internal registry plugin list state for the next test,
in case where the test registry does not exist yet.
When actually pushing an event, if we get GST_FLOW_CUSTOM_SUCCESS_1
(which is the conversion of GST_PAD_PROBE_HANDLED return value),
don't consider the stick event push as ignored, but as handled
Various plugins use special values (0 or G_MAXUINT32) as an
invalid/unset group_id, but nothing guarantees a groupid won't have
that value.
Instead define a value which group_id will never have and make
gst_group_id_next() always return a value different from that.
API: GST_GROUP_ID_INVALID
While the refcount of the pad is decreased, it's the refcount that is
owned by the parent (i.e. the element) and not the one passed in by the
caller.
Fixes a memory leak in bindings.
On Arch Linux x86_64, gcc 7.2.0-3, -Og -g3:
gstdevicemonitor.c: In function ‘bus_sync_message’:
gstdevicemonitor.c:276:8: error: ‘matches’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
This commit also simplifies the code a bit.
https://bugzilla.gnome.org/show_bug.cgi?id=789983
