Original commit message from CVS:
* gst/gstbuffer.c: (gst_buffer_new_and_alloc):
some debugging
* gst/gstcaps.h:
whitespace fixes
* gst/gstpad.c: (gst_pad_activate_push), (gst_pad_alloc_buffer):
more debugging
* gst/gststructure.c: (gst_caps_structure_fixate_field_boolean):
* gst/gststructure.h:
add a fixate function for booleans; add a FIXME that these func
names should probably be gst_structure_fixate_*
Original commit message from CVS:
* gst/base/gstbasetransform.c: (gst_base_transform_transform_caps),
(gst_base_transform_handle_buffer):
Also call the transform function if we have ANY caps.
* gst/gstpipeline.c: (gst_pipeline_set_new_stream_time):
Fix debug info.
Original commit message from CVS:
* gst/base/gstbasesrc.c: (gst_base_src_event_handler)
Don't pretend to handle seek events if the source is not seekable
Original commit message from CVS:
* gst/base/gstbasesink.c: (gst_base_sink_handle_object):
Remove extra parameter to debug output
* gst/base/gstbasesrc.c: (gst_base_src_send_discont),
(gst_base_src_do_seek), (gst_base_src_activate_push):
Fix seek event handling.
* gst/gstpipeline.c: (gst_pipeline_change_state):
* gst/gstqueue.c: (gst_queue_handle_sink_event),
(gst_queue_src_activate_push):
Don't start the src pad task on FLUSH_STOP if the pad
isn't linked.
Debug changes.
Original commit message from CVS:
* gst/gstcaps.c: (gst_static_caps_get), (gst_caps_to_string):
Make _static_caps_get() refcounting sane.
* gst/gstelement.c: (gst_element_set_state):
Add g_return_val_if_fail() to protect against segfaults.
Original commit message from CVS:
* check/gst/gstbin.c: (GST_START_TEST):
since we don't know when preroll is done, use refcount range
check for the sink
* gst/check/gstcheck.h:
add macro for checking refcount range
Original commit message from CVS:
* check/Makefile.am:
clean up environment for when registry gets built versus
when actual tests are run; valgrind seems to not report
leaks if GST_PLUGIN_PATH is set to some specific values
* check/gst/gstbin.c: (GST_START_TEST):
add more refcounting checks; maybe this exposes a
preroll lock bug ?
* common/check.mak:
* gst/base/gstbasesink.c: (gst_base_sink_handle_object):
* gst/check/gstcheck.h:
* gst/gstbin.c: (bin_element_is_semi_sink), (gst_bin_get_state),
(gst_bin_change_state):
* gst/gstpad.c: (gst_pad_activate_push), (gst_pad_chain):
add/fix debugging/whitespace
Original commit message from CVS:
* check/gst/gstevent.c: (event_probe), (test_event),
(GST_START_TEST):
Er, don't call gst_bin_watch_for_state_change you idiot.
Original commit message from CVS:
* check/Makefile.am:
Use CHECK_CFLAGS and CHECK_LIBS
* check/gst/gstevent.c: (event_probe), (test_event),
(GST_START_TEST):
Don't leak events.
* gst/base/gstbasesrc.c: (gst_base_src_send_discont),
(gst_base_src_start), (gst_base_src_stop),
(gst_base_src_activate_push), (gst_base_src_activate_pull),
(gst_base_src_change_state):
Sprinkle gst_base_src_stop liberally around error paths to fix
problems reusing a source after failed state changes.
* gst/base/gsttypefindhelper.c: (helper_find_peek),
(helper_find_suggest), (gst_type_find_helper):
Extra debug output. Don't segfault on GST_PAD_GETRANGEFUNC = NULL
* gst/gstevent.h:
* docs/gst/tmpl/gstevent.sgml:
Migrate part of the docs from the SGML file. Wait for ensonic to
tell me how I did it wrong ;)
* tools/gst-typefind.c: (main):
Extra robustness to state changes between files.
Original commit message from CVS:
* check/Makefile.am:
don't valgrind the controller test - it's leaking - Stefan, HELP
* gst/check/gstcheck.c: (gst_check_message_error),
(gst_check_chain_func), (gst_check_setup_element),
(gst_check_teardown_element), (gst_check_setup_src_pad),
(gst_check_teardown_src_pad), (gst_check_setup_sink_pad),
(gst_check_teardown_sink_pad):
* gst/check/gstcheck.h:
add a bunch of methods to set up elements, and src and sink pads
* check/elements/fakesrc.c: (setup_fakesrc), (cleanup_fakesrc):
* check/elements/identity.c: (setup_identity), (cleanup_identity),
(GST_START_TEST):
use them
* gst/gstmessage.c:
* gst/gsttag.h:
whitespace/doc fixes
Original commit message from CVS:
make GST_ELEMENT_ERROR not do GST_ERROR_OBJECT - these errors should
be handled by the application and not always printed as well
Original commit message from CVS:
* check/Makefile.am:
set GST_TOOLS_DIR
* gst/check/gstcheck.c: (gst_check_message_error):
* gst/check/gstcheck.h:
add a fail_unless_equals_int
add fail_unless for error messages
Original commit message from CVS:
* check/gst/gstevents.c: (GST_START_TEST), (event_probe),
(test_event), (timediff), (gstevents_suite):
Should fix build on 64-bit arch's
Original commit message from CVS:
2005-08-18 Andy Wingo <wingo@pobox.com>
Make sure that when a pipeline goes to PLAYING, that data has
actually hit the sink.
* check/states/sinks.c (test_sink): A sink that doesn't get any
data shouldn't return SUCCESS for going to either PLAYING or
PAUSED. Test also the return values on the way back down.
* gst/gstelement.c (gst_element_set_state): When changing the
state of an element currently changing state asynchronously, go to
lost-state after commiting the pending state. Makes future calls
to get_state continue to return ASYNC.
* gst/base/gstbasesink.c (gst_base_sink_change_state): Return
ASYNC when going to PLAYING if we still don't have preroll, as can
happen with live sources.
Original commit message from CVS:
* docs/pwg/advanced-types.xml:
Hack long paragraph into 2 chunks as a workaround for buggy
jadetex version in sid and breezy that loops infinitely and
eats all RAM.
Original commit message from CVS:
* check/gst/gstevents.c: (GST_START_TEST), (event_probe),
(test_event), (timediff), (gstevents_suite):
Provide more error margin in clock measurements to allow for
g_get_current_time inaccuracies.
Original commit message from CVS:
* check/gst/gstevents.c: (GST_START_TEST), (event_probe),
(test_event), (timediff), (gstevents_suite):
Fix error message output so I might be able to tell why the
test works here but fails on the build farm.
Original commit message from CVS:
* check/Makefile.am:
* check/gst/gstevents.c: (GST_START_TEST), (event_probe),
(test_event), (timediff), (gstevents_suite), (main):
I wrote a test!
* docs/design/part-seeking.txt:
Spelling correction
* docs/gst/tmpl/gstevent.sgml:
Docs updates.
* gst/base/gstbasesink.c: (gst_base_sink_handle_object):
Treat a buffer-without-newsegment the same as a receiving
a newsegment not in time format, and disable syncing to the clock
with a warning.
* gst/gstbus.c: (gst_bus_set_sync_handler):
Assert if anyone tries to replace the existing sync_handler for bus,
as only the owner should be setting it.
* gst/gstevent.h:
Have a fixed set of custom event enums with events identified by
their structure name (as in 0.8), rather than a free-for-all
allowing collisions between enum values from different plugins.
* gst/gstpad.c: (gst_pad_class_init):
Docs change.
* gst/gstqueue.c: (gst_queue_handle_sink_event):
Handle out-of-band downstream events from the sending thread.
Original commit message from CVS:
2005-08-17 Andy Wingo <wingo@pobox.com>
* gst/gstpipeline.c (gst_pipeline_change_state): Interpret
play-timeout==0 to mean no timeout at all. In that case, don't
bother with a get_state or a warning, just return directly, even
if it's ASYNC.
Original commit message from CVS:
2005-08-17 Andy Wingo <wingo@pobox.com>
* gst/base/gstbasetransform.c: Debug changes.
* gst/gstutils.h:
* gst/gstutils.c (gst_bin_watch_for_state_change): Add function to
ensure bins post state change messages. A bit of a hack but I can't
think of a way to avoid it.
* check/gst/gstbin.c (test_watch_for_state_change): Added test.
Original commit message from CVS:
2005-08-16 Andy Wingo <wingo@pobox.com>
* gst/base/gstadapter.h:
* gst/base/gstadapter.c (gst_adapter_take): New function, like
peek() but you own the data. Not terribly efficient atm.
Original commit message from CVS:
* gst/gstutils.c: (gst_element_found_tags_for_pad), (push_and_ref),
(gst_element_found_tags):
* gst/gstutils.h:
Add two utility functions for tag handling.
Original commit message from CVS:
* docs/manual/advanced-dataaccess.xml:
* docs/manual/basics-helloworld.xml:
Fix docs to use _bin_add() before _link(), which fixes the examples
with recent core versions (reported by Madhan Raj M
<raj_madan@rediffmail.com>, #313199).
Original commit message from CVS:
* check/Makefile.am:
add a .check target for running the check
* check/gst-libs/controller.c: (GST_START_TEST):
cosmetic fixups
* check/gst/gstbuffer.c: (GST_START_TEST), (gst_test_suite):
complete checks for gstbuffer; would be nice if I could get the
gcov stuff to work so I can see if I actually completed gstbuffer.c
* check/gstcheck.h:
add ASSERT_BUFFER_REFCOUNT
Original commit message from CVS:
* docs/gst/gstreamer-sections.txt:
* gst/gsttag.c: (_gst_tag_initialize), (gst_tag_register):
* gst/gsttag.h:
Add GST_TAG_LANGUAGE_CODE as we have in 0.8, and don't
spew out a warning if a tag that is already registered
is re-registered, unless it is re-registered with a
different type (#308438).
Original commit message from CVS:
* docs/pwg/appendix-porting.xml:
* docs/pwg/building-state.xml:
Add some paragraphs about state changes in 0.9 to the PWG
and the porting guide, in particular about the new meaning
of GST_STATE_PAUSED and how to write state change functions
with concurrent access by multiple threads in mind.
Original commit message from CVS:
* gst/gstghostpad.c: (gst_proxy_pad_set_target_unlocked),
(gst_proxy_pad_set_target), (gst_proxy_pad_get_target),
(gst_proxy_pad_dispose), (gst_ghost_pad_do_activate_push),
(gst_ghost_pad_do_link), (gst_ghost_pad_set_internal),
(gst_ghost_pad_new_notarget), (gst_ghost_pad_get_target),
(gst_ghost_pad_set_target):
Actually implement (re)setting the target on a ghostpad
as described in the docs.
Original commit message from CVS:
* gst/gst.c: (gst_init_check_with_popt_table), (init_pre):
Check whether GST_DEBUG_NO_COLOR environment variable is
set and disable coloured debug output if that is the case.
Original commit message from CVS:
* gst/base/gsttypefindhelper.c: (helper_find_peek),
(gst_type_find_helper):
The memory returned by gst_type_find_peek() needs to
stay valid until the end of a typefind function, and
typefind functions may keep results from different
offsets around, so we can't just unref the buffer from
the previous _peek(), but have to save all buffers
returned by _peek() until typefinding is done and only
free them then.
Original commit message from CVS:
* gst/base/gstadapter.h:
* gst/base/gstbasesink.h:
* gst/base/gstbasesrc.h:
* gst/base/gstbasetransform.h:
* gst/base/gstcollectpads.h:
* gst/base/gstpushsrc.h:
* gst/gstiterator.h:
Add padding to our base elements' class and instance structs and
to GstIterator (you will need to rebuild all plugins and apps!)
Original commit message from CVS:
* gst/gstbin.c: (bin_bus_handler):
Make default message forwarding from child->bus to bin->bus
threadsafe and make it not emit warnings if the parent has no bus.
Original commit message from CVS:
* gst/gstelement.c: (activate_pads):
On paused->ready, set pad->caps to NULL, as is the documented
behaviour in this state change. Fixes playback of series of
media files when visualization is enabled in Totem.
Original commit message from CVS:
added long/short desc for controller docs
added collectpads base class docs
added correct includes to base-class docs
Original commit message from CVS:
2005-08-04 Andy Wingo <wingo@pobox.com>
* gst/elements/gstcapsfilter.c: Reimplement using basetransform,
fixes buffer_alloc proxying among other things.
* gst/base/gstbasetransform.c:
* gst/base/gstbasetransform.h:
Revert patch to gstbasetransform from 7-28 removing
delay_configure.
* gst/base/gstbasetransform.h (GstBaseTransformClass.get_size):
* gst/base/gstbasetransform.c (gst_base_transform_get_size):
Semantics changed, should return not the size of the output buffer
but the byte size of a buffer with a given caps.
* gst/base/gstbasetransform.c (gst_base_transform_getcaps): Better
debug object.
(gst_base_transform_configure_caps): Don't set out_size here: (in,
out) are not the pad caps until setcaps finishes.
(gst_base_transform_buffer_alloc): Proxy the buffer_alloc for the
not-in-place case as well. Deal with changing from in-place to
not-in-place within calling pad_alloc_buffer. Still a bit
concerned about the overhead here...
Original commit message from CVS:
* gst/base/gstcollectpads.c: (gst_collectpads_finalize),
(gst_collectpads_stop):
Broadcast the condition when shutting down, to make sure we wake all
threads up. Shut down pads on finalize, for safety.
Original commit message from CVS:
2005-08-01 Jan Schmidt <thaytan@mad.scientist.com>
* gst/base/gstbasetransform.c: (gst_base_transform_init),
(gst_base_transform_handle_buffer),
(gst_base_transform_change_state):
Handle PAUSED->READY->PAUSED transition after negotiation
occurred already.
* gst/gstmessage.c: (gst_message_init):
Extra piece of debug for new messages.
Original commit message from CVS:
* gst/elements/gsttypefindelement.c:
(gst_type_find_element_have_type), (gst_type_find_element_init),
(stop_typefinding), (gst_type_find_element_handle_event),
(gst_type_find_element_chain), (gst_type_find_element_getrange):
* gst/elements/gsttypefindelement.h:
Set caps on all outgoing buffers, not just the first one.
Original commit message from CVS:
* gst/elements/gsttypefindelement.c:
(gst_type_find_element_have_type),
(gst_type_find_element_check_set_buffer_caps),
(gst_type_find_element_init), (stop_typefinding),
(gst_type_find_element_handle_event),
(gst_type_find_element_chain), (gst_type_find_element_getrange):
* gst/elements/gsttypefindelement.h:
Set caps on first outgoing buffer when we've found the type.
Original commit message from CVS:
* docs/gst/gstreamer-docs.sgml:
* docs/gst/gstreamer-sections.txt:
* docs/gst/tmpl/gstscheduler.sgml:
* docs/gst/tmpl/gstschedulerfactory.sgml:
Remove some old cruft from docs.
Original commit message from CVS:
* configure.ac:
Use AC_SYS_LARGEFILE, which will set _FILE_OFFSET_BITS=64
and _LARGEFILE_SOURCE in config.h as required. Do not
export those flags in our .pc files any longer (#142209).
Remove unused GST_DISABLE_OMEGA_COTHREADS stuff.
* gst/elements/gstfilesink.c: (gst_file_sink_class_init),
(gst_file_sink_do_seek), (gst_file_sink_event),
(gst_file_sink_get_current_offset), (gst_file_sink_render):
Redo seek/tell calls with large file support in mind; add some
debugging messages; add log message that tells us when large
file support is unavailable or not enabled for some reason.
* gst/elements/gstfilesrc.c: (gst_file_src_class_init):
Add log message that tells us when large file support
is unavailable or not enabled for some reason.
Original commit message from CVS:
* check/gst/gstghostpad.c: (GST_START_TEST), (gst_ghost_pad_suite):
Added test for removing an element with ghostpad from a bin.
Fixed test as current implementation does the right thing.
* gst/gstghostpad.c: (gst_proxy_pad_class_init),
(gst_proxy_pad_do_query_type), (gst_proxy_pad_do_event),
(gst_proxy_pad_do_query), (gst_proxy_pad_do_internal_link),
(gst_proxy_pad_do_bufferalloc), (gst_proxy_pad_do_activate),
(gst_proxy_pad_do_activatepull), (gst_proxy_pad_do_activatepush),
(gst_proxy_pad_do_chain), (gst_proxy_pad_do_getrange),
(gst_proxy_pad_do_checkgetrange), (gst_proxy_pad_do_getcaps),
(gst_proxy_pad_do_acceptcaps), (gst_proxy_pad_do_fixatecaps),
(gst_proxy_pad_do_setcaps), (gst_proxy_pad_set_target),
(gst_proxy_pad_get_target), (gst_proxy_pad_init),
(gst_proxy_pad_dispose), (gst_proxy_pad_finalize),
(gst_ghost_pad_class_init), (gst_ghost_pad_do_activate_push),
(gst_ghost_pad_do_link), (gst_ghost_pad_do_unlink),
(gst_ghost_pad_set_internal), (gst_ghost_pad_dispose),
(gst_ghost_pad_new_notarget), (gst_ghost_pad_new),
(gst_ghost_pad_get_target), (gst_ghost_pad_set_target):
* gst/gstghostpad.h:
Clean up ghostpads, remove properties for internal stuff.
Make threadsafe.
Fix refcounting.
Prepare for switching targets, not all use cases work yet.
Original commit message from CVS:
* docs/design/part-gstghostpad.txt:
Small update.
* gst/gstbin.c: (unlink_pads), (gst_bin_add_func),
(gst_bin_remove_func):
Unlinking pads while holding the bin LOCK is not a good
idea.
* gst/gstpad.c: (gst_pad_class_init),
(gst_pad_link_check_hierarchy), (gst_pad_get_caps_unlocked),
(gst_pad_accept_caps), (gst_pad_set_caps), (gst_pad_send_event):
No prob setting template after creating the pad.
Original commit message from CVS:
* gst/gstbus.c: (gst_bus_set_flushing), (gst_bus_pop),
(gst_bus_peek), (gst_bus_source_dispatch),
(gst_bus_add_watch_full), (poll_handler), (poll_timeout),
(poll_destroy), (poll_destroy_timeout), (gst_bus_poll):
gst_bus_poll may be called from other threads. Handle
this nicely by not making poll_data disappear off the
stack once gst_bus_poll returns.
gst_bus_peek now increments the refcount on the returned
message.
Original commit message from CVS:
* docs/design/part-gstghostpad.txt:
Overview of current GhostPad datastructures and use
cases for changing the target.
Original commit message from CVS:
* check/gst/gstbin.c: (GST_START_TEST), (gst_bin_suite):
Added checks for hierarchy consistency whan adding linked
elements to bins.
* check/gst/gstelement.c: (GST_START_TEST), (gst_element_suite):
Added check to test element scheduling without bin/pipeline.
* check/pipelines/simple_launch_lines.c: (GST_START_TEST):
First add elements to bin, then link.
* gst/gstbin.c: (unlink_pads), (gst_bin_add_func),
(gst_bin_remove_func):
Unlink pads from elements added/removed from bin to maintain
hierarchy consistency.
Original commit message from CVS:
* check/gst/gstghostpad.c: (GST_START_TEST), (gst_ghost_pad_suite):
Added some more tests for wrong hierarchy
* docs/design/part-overview.txt:
Some updates.
* gst/gstbin.c: (gst_bin_remove_func), (gst_bin_dispose):
Cleanups.
* gst/gstelement.c: (gst_element_remove_pad), (gst_element_seek),
(gst_element_dispose):
Some more cleanups.
* gst/gstpad.c: (gst_pad_link_check_compatible_unlocked),
(gst_pad_link_check_hierarchy), (gst_pad_link_prepare),
(gst_pad_get_caps_unlocked), (gst_pad_accept_caps),
(gst_pad_set_caps), (gst_pad_send_event):
Check for correct hierarchy when linking pads. Moving to
strict requirement for ghostpads when linking elements in
different bins.
* gst/gstpad.h:
Clean ups. Added WRONG_HIERARCHY return value.
Original commit message from CVS:
* libs/gst/dataprotocol/dataprotocol.c: (gst_dp_packet_from_event),
(gst_dp_event_from_packet):
Fix serialization of seek events.
Original commit message from CVS:
* gst/gstpad.c: (fixate_value), (gst_pad_default_fixate),
(gst_pad_fixate_caps):
Implement default fixation once again, so that gst_pad_fixate()
actually does anything at all. This probably needs to be some
sort of a last resort, and use profile-based fixation first, but
since that doesn't exist yet, this is the best we have. Fixes
visualization in Totem.
Original commit message from CVS:
* docs/design/part-seeking.txt:
Some small additions.
* gst/base/gstbasesink.c: (gst_base_sink_handle_object),
(gst_base_sink_get_times), (gst_base_sink_do_sync),
(gst_base_sink_activate_push), (gst_base_sink_activate_pull):
* gst/base/gstbasesink.h:
discont values are gint64, handle the math correctly.
* gst/base/gstbasesrc.c: (gst_base_src_loop):
Make the basesrc report error if the source pad is not linked.
* gst/gstqueue.c: (gst_queue_link_src), (gst_queue_chain),
(gst_queue_loop), (gst_queue_handle_src_query),
(gst_queue_src_activate_push):
Make queue collect data even if the srcpad is not linked.
Start pushing out data as soon as it is linked.
* gst/gstutils.c: (gst_element_unlink), (gst_flow_get_name):
* gst/gstutils.h:
Added gst_flow_get_name() to ease error reporting.
Original commit message from CVS:
* docs/manual/appendix-porting.xml:
* docs/pwg/appendix-porting.xml:
Document new-pad/state-change signal renames and the FixedList
type rename.
Original commit message from CVS:
* gst/gstinfo.c: (_gst_debug_nameof_funcptr),
(_gst_debug_register_funcptr):
* gst/gstinfo.h:
Fix illegal cast on some platforms (#309253).
Original commit message from CVS:
* gst/gstmessage.c: (gst_message_new_custom):
* gst/gstmessage.h:
Add _new_custom, make _new_application a macro to _new_custom.
Original commit message from CVS:
* gst/base/gstbasesrc.c: (gst_base_src_init),
(gst_base_src_do_seek), (gst_base_src_loop), (gst_base_src_start):
* gst/base/gstbasesrc.h:
Add a gboolean to decide when to push out a discont.
* gst/gstqueue.c: (gst_queue_handle_sink_event), (gst_queue_chain),
(gst_queue_loop), (gst_queue_handle_src_query),
(gst_queue_sink_activate_push), (gst_queue_src_activate_push),
(gst_queue_set_property), (gst_queue_get_property):
Some cleanups.
* tests/threadstate/threadstate1.c: (main):
Make a thread test compile and run... very silly..
Original commit message from CVS:
* docs/pwg/advanced-clock.xml:
* docs/pwg/appendix-porting.xml:
* docs/pwg/intro-preface.xml:
* docs/pwg/other-base.xml:
* docs/pwg/other-manager.xml:
* docs/pwg/other-nton.xml:
* docs/pwg/other-ntoone.xml:
* docs/pwg/other-oneton.xml:
* docs/pwg/pwg.xml:
Document base classes, update sections of n-to-1 and 1-to-n (muxer,
demuxer), remove n-to-n (was never written), fix some code examples
and links and update the porting section to include all this.
Original commit message from CVS:
* gst/gstqueue.c: (gst_queue_init), (gst_queue_handle_sink_event),
(gst_queue_chain), (gst_queue_loop), (gst_queue_handle_src_event),
(gst_queue_handle_src_query), (gst_queue_sink_activate_push),
(gst_queue_src_activate_push), (gst_queue_change_state),
(gst_queue_get_property):
* gst/gstqueue.h:
Propagate GstFlowReturn more intelligently upstream and output
an ERROR/EOS when streaming stopped due to fatal error.
Original commit message from CVS:
* tools/gst-launch.c: (check_intr), (event_loop), (main):
Don't block forever for the state change to complete, the
pipeline already did with a sensible timeout.
Original commit message from CVS:
* gst/base/gstbasesrc.c: (gst_base_src_get_range):
Make sure we never call the create function is we
got deactivated.
Original commit message from CVS:
* docs/design/part-clocks.txt:
* docs/design/part-events.txt:
* gst/base/gstbasesrc.c: (gst_base_src_do_seek):
Small docs updates.
Only update the seeking values when we are not
busy streaming.
Original commit message from CVS:
* gst/base/gstbasesrc.c: (gst_base_src_loop),
(gst_base_src_activate_push):
Send discont event from the loop function, as pads
aren't activated yet in the activate_push handler.
* gst/gstbin.c: (bin_bus_handler):
Don't leak element name.
Original commit message from CVS:
Removed plugable schedulers.
Removed Scheduler/Manager from elements.
Removed gsttypes.h, rearranged includes.
Removed dependency pad<->element, element<>pipeline, and
various others, fix includes.
implement gst_pad_get_parent() with gst_object_get_parent()
Make GstTask sefcontained.
Fix _get_state() on GstBin, it did not return ASYNC with a 0
timeout.
Fix endless loop in iterator_fold_with_resync.
