API: gst_mini_object_weak_ref()
API: gst_mini_object_weak_unref()
Add weak referencing functionality to GstMiniObject, which
allows to get notifications when an mini object is destroyed
but doesn't increase the real refcount. This is mostly
useful for bindings.
Fixes bug #609473.
gst_mini_object_unref() has guards that check the type already, so
we don't really need to re-check it here again while getting the
class (there's not really much point to that anyway, since we don't
check the return value of the get_class, so we'd crash anyway if
we're not dealing with a mini object, the only question would
be if there'd be a warning before the crash or not).
This is not really necessary here because everything is
initialized from gst_init() already but using G_DEFINE_TYPE()
removes some copy&paste boilerplate code.
This makes it possible to easily get a *:5 debug log without all
the refcounting noise, and drastically reduces the number of lines
output for a normal log (46m to 28m for a 20min video). The full log
including refcounting information can still be gotten using *:7.
Fixes#620460.
This changes some APIs in compatible ways:
- Some functions now take "const char *" arguments, not "char *"
- Some structs now have "conts char *" members, not "char *"
The changes may cause warnings when compiling with the right warning
flags. You've been warned.
Also adds -Wwrite-strings as a warning flag in configure.ac.
https://bugzilla.gnome.org/show_bug.cgi?id=611692
Avoid a race where a miniobject is recycled and quickly freed, which causes the
g_type_free_instance() to be called on the same object twice.
Ref the object before calling the finalize method and check if we still need to
free it afterward.
Also add a unit test for this case.
Fixes#601587
Original commit message from CVS:
* gst/gstminiobject.c: (gst_value_get_mini_object):
Fix 'Since:' version in gst_value_dup_mini_object() docs blurb: this
function was not in the unscheduled 0.10.19 release.
Original commit message from CVS:
* gst/gstminiobject.c: (gst_value_dup_mini_object),
(gst_param_spec_mini_object):
* gst/gstminiobject.h:
* win32/common/libgstreamer.def:
* docs/gst/gstreamer-sections.txt:
API: Add GST_IS_PARAM_SPEC_MINI_OBJECT, GST_PARAM_SPEC_MINI_OBJECT
GST_TYPE_PARAM_MINI_OBJECT and gst_value_dup_mini_object. Also move
GstParamSpecMiniObject into a public header for this.
This make GstMiniObject a bit more consistent with GObject and makes
it possible to extend the param specs.
gst_value_dup_mini_object is mainly useful for set_property methods.
Fixes bug #523798.
* tools/gst-inspect.c: (print_element_properties_info):
Print something useful for GstMiniObject properties and not just
"unknown type".
Original commit message from CVS:
* gst/gstminiobject.c:
Import gst_private.h before any other header that might include other
glib headers. This fixes the build on windows using native compilers.
Original commit message from CVS:
* gst/gstminiobject.c:
Add FIXME for 0.11 to make GstMiniObjectClass::copy() a bit more
friendly to subclasses and not require them to know all internals
of their parent class.
Original commit message from CVS:
* gst/gstminiobject.c: (gst_mini_object_replace):
When replacing a miniobject, do a quick equality check first so that we
can avoid a ref/unref pair.
Original commit message from CVS:
* gst/gstminiobject.c: (gst_mini_object_get_type),
(gst_mini_object_class_init), (gst_mini_object_copy_default),
(gst_mini_object_finalize), (gst_mini_object_copy),
(gst_mini_object_is_writable), (gst_mini_object_make_writable),
(gst_mini_object_replace), (param_mini_object_validate),
(gst_param_spec_mini_object_get_type):
Some cleanup and checking against invalid function parameters.
Original commit message from CVS:
* gst/gst.c: (ensure_current_registry_forking):
Ignore EINTR when reading from the child registry pipe.
Explicitly ignore the return value from close, since it makes no
difference.
* gst/gstminiobject.c: (gst_mini_object_ref),
(gst_mini_object_unref):
When debugging refcounts, check GST_IS_MINI_OBJECT and warn.
* gst/gstregistry.c: (_priv_gst_registry_remove_cache_plugins):
When removing cached plugins, remove their features too, so they're
not visible after they've disappeared.
* gst/gstutils.c: (prepare_link_maybe_ghosting):
In the unlikely case that we are linking pads with no parents, don't
crash trying to get the non-existent parent bin.
* gst/parse/grammar.y:
Output debug in the PIPELINE category
Original commit message from CVS:
* gst/gstminiobject.c:
update docs
* plugins/elements/gstfdsrc.c: (gst_fd_src_set_property),
(gst_fd_src_create):
log recurring events at LOG level
add more debug for when the fd gets set
Original commit message from CVS:
* gst/gstbuffer.h:
* gst/gstminiobject.c:
Add note about refcounting and miniobject/buffer writeability
to docs. Fixes#340604
* gst/gstelementfactory.h:
Added some explanation about @klass.
