Original commit message from CVS:
* gst/schedulers/threadscheduler.c:
(gst_thread_scheduler_task_start),
(gst_thread_scheduler_task_pause), (gst_thread_scheduler_func):
Ref the task before pushing it on the threadpool. This
makes sure that we have a ref when the threadfunction is
actually called.
Original commit message from CVS:
2005-06-23 Andy Wingo <wingo@pobox.com>
* gst/base/gstbasesrc.c (gst_basesrc_get_range): Check if the
offset is greater than the file's size.
Original commit message from CVS:
2005-06-23 Andy Wingo <wingo@pobox.com>
* gst/gstobject.h (GST_CLASS_LOCK, GST_CLASS_TRYLOCK)
(GST_CLASS_UNLOCK, GST_CLASS_GET_LOCK, GstObjectClass)
* gst/gstobject.c (gst_object_class_init): Make the class lock
recursive. Wim won't let me drop deep_notify. Decodebin works
again, whoopdy doo.
Original commit message from CVS:
2005-06-23 Andy Wingo <wingo@pobox.com>
* gst/gstghostpad.c (on_int_notify): Catches notify::caps on the
internal pad, and hacks accordingly. Doesn't do it on the target
pad because we change its caps. Probably catches all cases of
interest tho.
(gst_ghost_pad_set_property): Connect to notify::caps as
appropritate.
Original commit message from CVS:
2005-06-23 Jan Schmidt <thaytan@mad.scientist.com>
* gst/elements/gsttypefindelement.c:
(gst_type_find_element_handle_event):
Don't restart typefinding on a discont.
* gst/gstelement.c: (gst_element_set_state):
Debug spelling fix.
* gst/gstpad.c: (gst_pad_set_active), (gst_pad_send_event):
Allow changing mode of an active pad.
Debug output fixes.
* gst/registries/gstlibxmlregistry.c: (load_feature):
Don't cast a static pad template to a normal pad template.
Original commit message from CVS:
* check/gst/gstvalue.c: (START_TEST), (gst_value_suite):
* gst/gstvalue.c: (gst_value_deserialize_int_helper):
remove gst_strtoll completely, since it didn't actually do
anything more than what g_ascii_strtoull already does.
check for range errors when deserializing
do a cast for the unsigned cases; but further fixing needs
a decision on what the interpretation of "(int)" and
deserialization should be for values that fall outside the
type's boundaries (ie, refuse, or interpret as casting)
Original commit message from CVS:
Added support for live sources and other elements that
cannot do preroll.
Updated design docs, added live-source design doc.
Implemented live source functionality in basesrc
Fix error condition in _bin_get_state()
Implement live source handling in -launch.
Added check for live sources.
Fixed case in GstBin where elements were changed state
multiple times.
Original commit message from CVS:
2005-06-23 Andy Wingo <wingo@pobox.com>
* gst/gstghostpad.c (gst_proxy_pad_do_setcaps): Call the full
gst_pad_set_caps on the target, not just its setcaps() function.
Original commit message from CVS:
* check/Makefile.am:
* check/gst/capslist.h:
copy over from 0.8, and add two with bitmasks specified with
(int) 0xFF...
* check/gst/gstcaps.c: (START_TEST), (gst_caps_suite):
add test to parse everything from capslist.h
* check/gst/gststructure.c: (START_TEST), (gst_value_suite),
(main):
add test for structure deserialization
* check/gst/gstvalue.c: (START_TEST), (gst_value_suite):
add tests for deserialization of strings to int types
* gst/gststructure.c: (gst_structure_nth_field_name):
* gst/gststructure.h:
add a way to get the name of a field referenced by index
* gst/gstvalue.c: (gst_value_deserialize_int_helper):
instead of checking if the resulting long long lies between
min and max, we check if the long long would fit into
a number of bytes for the final type.
This fixes cases where a string represents 2^32 - 1, which
when cast to int would be the (valid) -1, but is bigger than
G_MAXINT
Original commit message from CVS:
* check/gst/gstvalue.c: (START_TEST):
* gst/gstvalue.c: (gst_value_deserialize):
return long long, not int, so gint64 deserialization actually
works. Is there any flag that makes the compiler check this ?
Fixes#308559
Original commit message from CVS:
* gst/gstpad.c:
Small doc updates.
* gst/gstvalue.c: (gst_value_compare_buffer),
(gst_value_serialize_buffer), (gst_value_deserialize_buffer),
(gst_value_compare_flags), (gst_value_serialize_flags),
(gst_value_deserialize_flags), (_gst_value_initialize):
Fix serialisation of buffers, they are not boxed types anymore
Original commit message from CVS:
2005-06-20 Andy Wingo <wingo@pobox.com>
* gst/gstsystemclock.c (gst_system_clock_init): Unlock the clock
if its socks fill with rocks.
(gst_system_clock_obtain): Set the name on object construction.
Avoid double-checked locking.
Original commit message from CVS:
* check/gstcheck.h:
add macros for checking refcounts on objects and caps
* check/gst/gstpad.c: (START_TEST), (gst_pad_suite):
add some more unit tests
* gst/gstpad.c: (gst_pad_link_check_compatible_unlocked),
(gst_pad_link_prepare), (gst_pad_link), (gst_pad_get_allowed_caps):
fix leaked refcounts (I hope :)) so unittest works
* gst/gstpad.h:
whitespace removal
Original commit message from CVS:
2005-06-17 Andy Wingo <wingo@pobox.com>
* gst/base/gstbasesink.c (gst_basesink_chain): Remove bogus
assert; it's always possible that the pad gets deactivated in
between the checks in gstpad.c and the implementation. Rely on
finish_preroll() to return a FLUSHING or similar instead of on the
assert.
Original commit message from CVS:
2005-06-17 Andy Wingo <wingo@pobox.com>
* gst/base/gstbasesink.c (gst_basesink_event): Only wait for the
clock and post an EOS message if we come out of finish_preroll in
the playing state.
Original commit message from CVS:
* gst/elements/gstcapsfilter.c: (gst_capsfilter_class_init),
(gst_capsfilter_set_property): Allow NULL as possible value
for filter_caps property, indicating GST_CAPS_ANY.
Original commit message from CVS:
* gst/elements/gstfakesrc.c: (gst_fakesrc_create):
fix debug output
* gst/schedulers/Makefile.am:
use libgst prefix
* gstreamer.spec.in:
fix spec for it
Original commit message from CVS:
2005-06-08 Andy Wingo <wingo@pobox.com>
* gst/gstutils.c: RPAD fixes all around.
(gst_element_link_pads): Refcounting fixes.
* tools/gst-inspect.c:
* tools/gst-xmlinspect.c:
* parse/grammar.y:
* gst/base/gsttypefindhelper.c:
* gst/base/gstbasesink.c:
* gst/gstqueue.c: RPAD fixes.
* gst/gstghostpad.h:
* gst/gstghostpad.c: New ghost pad implementation as full proxy
pads. The tricky thing is they provide both source and sink
interfaces, since they proxy the internal pad for the external
pad, and vice versa. Implement with lower-level ProxyPad objects,
with the interior proxy pad as a child of the exterior ghost pad.
Should write a doc on this.
* gst/gstpad.h: s/RPAD/PAD/, s/RealPad/Pad/.
(gst_pad_set_name, gst_pad_set_parent): Macros removed, use
gst_object API.
* gst/gstpad.c: Big changes. No more stub base GstPad, now all
pads are real pads. No ghost pads in this file. Not documenting
the myriad s/RPAD/PAD/ and REALIZE fixes.
(gst_pad_class_init): Add properties for "direction" and
"template". Both are construct-only, so they can't change during
the life of the pad. Fixes properly deriving from GstPad.
(gst_pad_custom_new, gst_pad_custom_new_from_template): Gone. For
derived objects, just set properties when creating the objects via
g_object_new.
(gst_pad_get_parent): Implement as a function, return NULL if the
parent is not an element.
(gst_pad_get_real_parent, gst_pad_add_ghost_pad)
(gst_pad_remove_ghost_pad, gst_pad_realize): Removed.
* gst/gstobject.c (gst_object_class_init): Make name a construct
property. Don't set it in the object init.
* gst/gstelement.c (gst_element_add_pad): Don't allow adding pads
with UNKNOWN direction.
(gst_element_add_ghost_pad): Remove non-orthogonal API. Replace
with gst_element_add_pad (e, gst_ghost_pad_new (name, pad)).
(gst_element_remove_pad): Remove ghost-pad special cases.
(gst_element_pads_activate): Remove rpad cruft.
* gst/gstbin.c (gst_bin_change_state): Use gst_pad_get_parent to
catch the pad's-parent-not-an-element case.
* gst/gst.h: Include gstghostpad.h.
* gst/gst.c (init_post): No more real, ghost pads.
* gst/Makefile.am: Add gstghostpad.[ch].
* check/Makefile.am:
* check/gst/gstbin.c:
* check/gst/gstghostpad.c (test_ghost_pads): Check that linking
into a bin creates ghost pads, and that the refcounts are right.
Partly moved from gstbin.c.
Original commit message from CVS:
* gst/elements/gstcapsfilter.c: (gst_capsfilter_set_property):
Free existing caps if the capsfilter changes. Add a FIXME about
setting those caps on the pads.
* gst/gstutils.c: (gst_element_get_compatible_pad), (ghost_up):
Before adding a ghost pad to a parent bin, check that there isn't
already one for the element on the bin. Prevents infinite recursion
when using decodebin in parse pipelines. Andy says he'll rewrite the
way this works anyway, so ignore the hack.
Original commit message from CVS:
2005-06-02 Andy Wingo <wingo@pobox.com>
* gst/elements/gsttypefindelement.c (do_pull_typefind): Query the
file size, pass it on to the type find helper.
* gst/base/gstbasesrc.c (gst_basesrc_do_seek): Set the
segment_start and segment_end properly according to the seek
method. Segment_end is still a bit flaky because offset can be
negative for CUR and END cases, but it takes -1 as an "unset"
value.
Original commit message from CVS:
* gst/elements/gstidentity.c: (gst_identity_event),
(gst_identity_transform), (gst_identity_get_property):
Protect last_message property as it is accessed from
multiple threads.
Original commit message from CVS:
* gst/gstelement.c: (gst_element_init),
(gst_element_pads_activate), (gst_element_change_state):
Slicker pad activation code.
Original commit message from CVS:
* gst/Makefile.am:
* gst/gstelement.h:
* gst/gstelementfactory.h:
* gst/gsttypes.h:
Move elementfactory methods to separate .h file.
Original commit message from CVS:
* gst/gstbuffer.c: (gst_subbuffer_finalize),
(gst_buffer_create_sub), (gst_buffer_is_span_fast):
* gst/gstbuffer.h:
Avoid typechecking in places where not needed.
Added accessor for malloc_data.
Original commit message from CVS:
* gst/gstpad.c: (gst_real_pad_init), (gst_pad_set_active),
(gst_pad_link_prepare), (gst_pad_link), (gst_pad_accept_caps),
(gst_pad_configure_sink), (gst_pad_configure_src),
(gst_pad_alloc_buffer), (gst_pad_query), (gst_pad_send_event),
(gst_pad_start_task):
Propagate errors from _set_caps() in configure_src/sink
functions instead of returning TRUE.
FLUSH events can travel up and downstream
Original commit message from CVS:
* gst/gstqueue.c: (gst_queue_handle_sink_event), (gst_queue_chain),
(gst_queue_loop), (gst_queue_handle_src_event):
Remove old pieces of code
Flushing the queue in an upstream event is a very bad idea.
Original commit message from CVS:
2005-05-26 Andy Wingo <wingo@pobox.com>
* gst/gstminiobject.c (gst_value_mini_object_collect): Use
gst_value_set_mini_object so as to add a ref on the object (which
will be removed when the value is unset).
* gst/elements/gstfakesink.c (gst_fakesink_class_init): Fix signal
arg type in ::handoff.
* gst/gstelement.c (gst_element_change_state): Also deactivate
pads in READY->NULL, just in case the element didn't make it to
PAUSED. Wingo tested, Wim approved.
Original commit message from CVS:
* gst/gstpad.c: (gst_pad_set_active), (gst_pad_link_prepare),
(gst_pad_link), (gst_pad_accept_caps), (gst_pad_alloc_buffer),
(gst_pad_query), (gst_pad_send_event), (gst_pad_start_task):
A flushing pad cannot be used to alloc_buffer from.
Original commit message from CVS:
* gst/gstbus.c: (gst_bus_init), (gst_bus_dispose), (gst_bus_post),
(gst_bus_pop), (gst_bus_source_prepare), (gst_bus_source_check),
(gst_bus_source_dispatch), (gst_bus_source_finalize),
(gst_bus_create_watch), (gst_bus_add_watch_full):
* gst/gstbus.h:
Implement a real GSource and use g_main_context_wakeup() to
signal new messages instead of the socketpair.
Original commit message from CVS:
* gst/gstbin.c: (bin_element_is_sink), (has_ancestor),
(bin_element_is_semi_sink), (append_child), (gst_bin_change_state):
* gst/gstpad.c: (gst_pad_set_active), (gst_pad_link_prepare),
(gst_pad_link), (gst_pad_accept_caps), (gst_pad_query),
(gst_pad_send_event), (gst_pad_start_task):
* gst/gstqueue.c: (gst_queue_init), (gst_queue_locked_flush),
(gst_queue_handle_sink_event), (gst_queue_chain), (gst_queue_loop),
(gst_queue_sink_activate), (gst_queue_src_activate),
(gst_queue_change_state):
* gst/gstqueue.h:
Fix state changes for non sinks. We now change sinks, then elements
with unconnected srcpads, then the rest.
More efficient queue unlocking in flush and state changes.
Set the pad activate mode even if it does not have an activate
function.
Original commit message from CVS:
* gst/base/gstbasesrc.c: (gst_basesrc_activate):
Don't go in pull mode for non-seekable sources.
* gst/elements/gsttypefindelement.c: (gst_type_find_element_init),
(gst_type_find_element_dispose), (gst_type_find_handle_src_query),
(free_entry), (stop_typefinding),
(gst_type_find_element_handle_event), (find_peek),
(gst_type_find_element_chain), (do_pull_typefind),
(gst_type_find_element_change_state):
Allow typefinding (w/o seeking) in push-mode, simplified version
of what was in 0.8.
* gst/gstutils.c: (gst_buffer_join):
* gst/gstutils.h:
gst_buffer_join() from 0.8.
Original commit message from CVS:
* gst/gstpad.c: (gst_pad_set_active), (gst_pad_link_prepare),
(gst_pad_link), (gst_pad_accept_caps), (gst_pad_query),
(gst_pad_send_event), (gst_pad_start_task):
Disable attempt at mode switching until it is figured out.
Original commit message from CVS:
* gst/gst.c:
* gst/gstmessage.c:
Make sure the class is reffed/unreffed once before threads can be
used. Fixes#304551.
Original commit message from CVS:
* gst/base/gstbasesink.c: (gst_basesink_finish_preroll),
(gst_basesink_chain_unlocked), (gst_basesink_activate):
* gst/gstminiobject.c: (gst_mini_object_get_type),
(gst_mini_object_free):
* gst/gstpad.c: (gst_pad_accept_caps), (gst_pad_query),
(gst_pad_push), (gst_pad_push_event):
* gst/gstqueue.c: (gst_queue_change_state):
Don't queue buffers in basesink when we are flushing.
Unref buffer when flushing in basesink.
Flush queue when going to READY
Unref buffer when _push() returns an error.
Don't free MiniObject instance when refcount is incremented
in _finalize() so that we can recover objects.
Original commit message from CVS:
* gst/gstpad.c: (gst_pad_accept_caps), (gst_pad_set_caps),
(gst_pad_alloc_buffer), (gst_pad_query), (gst_pad_push):
* gst/gstqueue.c: (gst_queue_change_state):
Clear queue when going to READY.
Remove IN_SETCAPS flag too.
Original commit message from CVS:
* gst/base/gstbasesrc.c: (gst_basesrc_change_state):
Remove implicit cast from gboolean to GstElementStateReturn;
make sure we still return failure in paused => ready case if
the parent class fails to change state and our own stop
vfunc succeeds.
Original commit message from CVS:
2005-05-16 Andy Wingo <wingo@pobox.com>
* gst/gstbin.c (sink_iterator_filter): Err... um...
* check/gst/gstbin.c (test_ghost_pads): New test for the
ghosting-if-elements-not-in-same-bin behavior.
Original commit message from CVS:
* gst/elements/Makefile.am: Remove some elements that don't
need to be in the core (or even exist at all).
* gst/elements/gstaggregator.c:
* gst/elements/gstaggregator.h:
* gst/elements/gstmd5sink.c:
* gst/elements/gstmd5sink.h:
* gst/elements/gstmultifilesrc.c:
* gst/elements/gstmultifilesrc.h:
* gst/elements/gstpipefilter.c:
* gst/elements/gstpipefilter.h:
* gst/elements/gstshaper.c:
* gst/elements/gstshaper.h:
* gst/elements/gststatistics.c:
* gst/elements/gststatistics.h:
* po/POTFILES.in: Remove above files.
Original commit message from CVS:
2005-05-14 Andy Wingo <wingo@pobox.com>
* gst/gstbin.c (gst_bin_iterate_sinks): Use sink_iterator_filter
so as to get the refs right.
(sink_iterator_filter): New function, wraps bin_element_is_sink,
unreffing objects that don't pass the filter.
Original commit message from CVS:
2005-05-14 Andy Wingo <wingo@pobox.com>
* gst/gstpipeline.c (gst_pipeline_init): Drop ref on bus after
gst_element_set_bus.
(gst_pipeline_dispose): Set the bus on the pipeline to NULL. In
normal cases, this will destroy the bus.
* gst/gstutils.c (prepare_link_maybe_ghosting): Drop ref on root
object.
Original commit message from CVS:
2005-05-14 Andy Wingo <wingo@pobox.com>
* gst/gstbin.c (gst_bin_change_state): Fix state changes if a bin
has no sinks.
Original commit message from CVS:
2005-05-13 Andy Wingo <wingo@pobox.com>
* gst/gstutils.c (gst_element_link_pads): Instead of calling
gst_pad_link, call pad_link_maybe_ghosting,
(pad_link_maybe_ghosting): Links pads, making sure that the
elements being linked are in the same bin.
(find_common_root, object_has_ancestor, ghost_up, remove_pad):
Helpers for pad_link_maybe_ghosting.
Original commit message from CVS:
* gst/base/gstbasesink.c: (gst_basesink_init),
(gst_basesink_activate):
* gst/base/gstbasesrc.c: (gst_basesrc_unlock),
(gst_basesrc_is_seekable):
* gst/gstbin.c: (gst_bin_add_func), (gst_bin_remove_func),
(bin_element_is_sink), (gst_bin_change_state):
* gst/gstelement.c: (gst_element_add_pad), (gst_element_query):
* gst/gstelement.h:
Identify sinks by their flag to avoid overly complicated
checks (fow now).
Do state changes even for elements not reachable from the
sinks.
BaseSink is a sink now :)
Some more debugging info in the basesrc.
Original commit message from CVS:
* gst/base/gstbasesrc.c: (gst_basesrc_do_seek):
Discont event offset format should be GST_FORMAT_BYTES,
not GST_FORMAT_TIME.
Original commit message from CVS:
* gst/gstbin.c: (gst_bin_add_func), (cb_parent_unset),
(gst_bin_get_state):
If a child is removed from a bin while we remove the child from
the bin and while we're retrieving its state, signal this to the
get_state function so we abort the wait (instead of waiting for
a timeout) and can immediately re-iterate over all other elements.
Original commit message from CVS:
* gst/gstelement.c: (gst_element_add_pad), (gst_element_query):
* gst/gstutils.c: (gst_element_get_compatible_pad_template),
(gst_element_link_pads), (gst_element_query_position),
(gst_element_query_convert), (intersect_caps_func),
(gst_pad_query_position), (gst_pad_query_convert):
Fix refcounting in utils function.
No point in trying to activate a pad when it's added, it could
be added from the state change function and then we deadlock, the
element has to decide what to do.
Original commit message from CVS:
2005-05-10 Andy Wingo <wingo@pobox.com>
* gst/elements/gstfakesink.c (gst_fakesink_render): Er, emit with
*all* the arguments.
* gst/base/gstbasetransform.c (gst_base_transform_event): Grab the
stream lock if it's a FLUSH_DONE; normal flushes don't get the
lock (according to the docs -- if this is wrong change the docs).
* gst/gstpipeline.c (gst_pipeline_change_state): Set the bus to
flush messages in the NULL state.
* gst/gstbus.c (gst_bus_post): If a bus is flushing, unref the
message immediately and return.
(gst_bus_set_flushing): New function. If a bus is flushing, it
flushes out any queued messages and immediately unrefs new
messages. This is so when an element goes to NULL, all of the
unhandled messages coming from it can be freed, and their
references to the element dropped. In other words: message source
ref considered harmful :P
* gst/gstbin.c (gst_bin_change_state): Unref peer element when
we're finished with it.
* gst/gstmessage.c (gst_message_new_state_changed):
Original commit message from CVS:
2005-05-09 Andy Wingo <wingo@pobox.com>
* gst/base/gstbasetransform.c (gst_base_transform_proxy_getcaps):
Intersect the peer's caps with our caps.
Original commit message from CVS:
Remove old query functions. Ported old code.
Added position/convert helper functions to gstutils.
Reordered gstpad.c code, grouping relevant things.
Remove gst_message_new(), always need to speficy a specific
message.
Original commit message from CVS:
2005-05-09 Andy Wingo <wingo@pobox.com>
* gst/gstiterator.h: Add some includes.
* gst/gstqueryutils.h: Include more headers.
* gst/gstpad.h:
* gst/gstpad.c (gst_pad_query_position): New routine, replaces
some uses of gst_pad_query.
* gst/gstqueryutils.c: Build fixes. Make parse functions ignore
NULL out parameters.
(gst_query_new_position): New proc, allocates a new position
query.
* gst/Makefile.am (libgstreamer_@GST_MAJORMINOR@_la_SOURCES): Add
gstqueryutils.c to the build.
* gst/gststructure.c (gst_structure_set_valist): Implement with
the generic G_VALUE_COLLECT.
Original commit message from CVS:
* gst/Makefile.am: (gst_headers):
Added gstqueryutils.h to the list of headers to install, that was
a 'nachty' move wingo :)
Original commit message from CVS:
2005-05-06 Andy Wingo <wingo@pobox.com>
* gst/gstquery.h
* gst/gstquery.c (_gst_query_initialize): Extend GstQuery from
GstData, init a memchunk.
(standard_definitions): Add a few query types, deprecate a few.
(gst_query_get_type): New proc.
(_gst_query_copy, _gst_query_free, gst_query_new): GstData
implementation.
(gst_query_new_application, gst_query_get_structure): New public
procs.
* docs/design/draft-query.txt: Removed LINKS from the query types,
because all the rest can be dispatched to other pads -- seemed
ugly to have a query that couldn't be dispatched. internal_links
is fine as a pad method.
* gst/gstpad.h: Add query2 as a pad method, add the new functions
in gstpad.c, but maintain binary compatibility for the moment.
Will fix before 0.9 is out.
* gst/gstqueryutils.c:
* gst/gstqueryutils.h: New files, implement 3 methods for each
query type: parse_query, parse_response, and set. Probably need an
allocator as well.
* gst/gst.h: Add gstquery.h and gstqueryutils.h to the list.
* gst/elements/gstfilesink.c (gst_filesink_query2):
* gst/base/gstbasesrc.c (gst_basesrc_query2): Replace old query,
query_types, and formats methods.
* gst/gstpad.c (gst_pad_query2, gst_pad_query2_default)
(gst_pad_set_query2_function): New functions.
(gst_real_pad_init): Set query2_default as the default query2
function. Basically just dispatches to internally linked pads.
Needs review!
* gst/gstdata_private.h (_GST_DATA_INIT): Set data->refcount to 1
without using the atomic operations. Only one thread can possibly
be accessing the data at this point. Changed so as to avoid
gst_atomic operations.
Original commit message from CVS:
* gst/base/gstbasetransform.c: (gst_base_transform_proxy_getcaps):
* gst/elements/gstcapsfilter.c: (gst_capsfilter_getcaps):
* gst/gstpad.c: (gst_pad_peer_get_caps):
* gst/gstqueue.c: (gst_queue_init), (gst_queue_getcaps),
(gst_queue_bufferalloc), (gst_queue_handle_sink_event),
(gst_queue_src_activate), (gst_queue_change_state):
* gst/gstqueue.h:
* gst/gstutils.c: (gst_element_get_compatible_pad_template),
(intersect_caps_func):
Fix gst_pad_peer_get_caps(), make it return NULL if no peer.
Always take QUEUE_LOCK after STREAM_LOCK or we might deadlock.
Some fixes for the peer_get_caps() change.
Original commit message from CVS:
* gst/base/gstbasesink.c: (gst_basesink_preroll_queue_empty),
(gst_basesink_handle_buffer), (gst_basesink_chain_unlocked),
(gst_basesink_activate):
Actually do something with error codes returned from the push
functions.
