Original commit message from CVS:
* testsuite/debug/commandline.c: (main): Call ./commandline, not
argv[0]. Calling yourself is probably not the best way to
construct a test like this, btw.
Original commit message from CVS:
* gst/gstbin.c: (gst_bin_iterate_func), (gst_bin_iterate):
don't
* gst/schedulers/entryscheduler.c: (safe_cothread_switch),
(safe_cothread_destroy),
(gst_entry_scheduler_remove_all_cothreads),
(gst_entry_scheduler_reset), (_remove_cothread),
(gst_entry_scheduler_state_transition):
hold off cothread destruction if we're not in main cothread
* configure.ac:
* testsuite/Makefile.am:
add new test dir
* testsuite/schedulers/.cvsignore:
* testsuite/schedulers/Makefile.am:
add tests
* testsuite/schedulers/relink.c: (cb_handoff), (main):
check relinking and adding/removing elements from a running pipeline
* testsuite/schedulers/unlink.c: (cb_handoff), (main):
check unlinking in a running pipeline
* testsuite/schedulers/unref.c: (cb_handoff), (main):
check unreffing a running pipeline
* testsuite/schedulers/useless_iteration.c: (main):
check iterating a pipeline that contains running threads works
Original commit message from CVS:
* gst/gstvalue.c: (gst_strtoll), (CREATE_SERIALIZATION),
(CREATE_USERIALIZATION), (_gst_value_initialize),
(gst_value_compare_float), (gst_value_serialize_float),
(gst_value_deserialize_float), (gst_value_compare_enum),
(gst_value_serialize_enum), (gst_value_deserialize_enum):
add serialization and comparison functions for long, int64, enum and
float values
* gst/gstvalue.c: (gst_value_serialize), (gst_value_deserialize):
use best serialization function in type hierarchy instead of only a
matching one. This is required for enums to work.
* gst/parse/grammar.y:
use gst_caps_deserialize
* testsuite/parse/Makefile.am:
parse1 now works
* testsuite/parse/parse1.c: (main):
remove aggregator check, aggregator is broken, this test works now
but fails because of bug #138012
* testsuite/parse/parse2.c: (main):
s/xvideosink/xvimagesink - this test looks a lot like we should
disable it
Original commit message from CVS:
* tests/Makefile.am:
* tests/spidey_bench.c: (handoff), (main):
add benchmark to test how long spider needs to create a pipeline
Original commit message from CVS:
* gst/parse/grammar.y:
fix assert to not trigger when there's no error argument
* gst/parse/parse.l:
fix definition of caps to allow more than two structures
* testsuite/caps/Makefile.am:
* testsuite/caps/renegotiate.c: (main):
it's sinesrc and works in that case
Original commit message from CVS:
The "once more, with feeling" check-in.
* testsuite/caps/Makefile.am: dist caps_strings
* testsuite/caps/renegotiate.c: (main): This test triggers a
segfault in the core. Marking as failing.
Original commit message from CVS:
* testsuite/caps/deserialize.c: (main): Fix problems noticed
by the build bots.
* testsuite/caps/renegotiate.c: (main): Same.
Original commit message from CVS:
* configure.ac: Link plugins with libgstreamer and dependent
libraries
* testsuite/caps/Makefile.am:
* testsuite/caps/caps_strings:
* testsuite/caps/deserialize.c: (main): Add a little test to slog
through a file of caps strings and test each one
Original commit message from CVS:
* gst/gstcaps.c: (gst_caps_structure_subtract_field),
(gst_caps_structure_subtract), (gst_caps_subtract),
(gst_caps_structure_figure_out_union),
(gst_caps_structure_simplify), (gst_caps_do_simplify):
fix simplifying and subtracting not working correctly with optional
properties
solve assorted problems that make it now simplify ebven more
* docs/gst/tmpl/gstcaps.sgml:
* gst/gstcaps.h:
make gst_caps_do_simplify return a bool to indicate if it simplified
* testsuite/caps/simplify.c: (main):
add more checks. The tests is quite a bit useless right now because
the core is heavily simplifying itself.
* testsuite/caps/caps.h:
fix caps to contain all optional properties
Original commit message from CVS:
* docs/gst/tmpl/gstcaps.sgml:
* docs/gst/tmpl/gstfilesrc.sgml:
* docs/gst/tmpl/gststructure.sgml:
* docs/gst/tmpl/gstvalue.sgml:
update for recent API changes
* gst/gstcaps.c: (gst_caps_do_simplify):
fix to stop trying with a freed structure
* gst/gstpad.c: (gst_pad_link_fixate):
simplify caps
* gst/gstpad.c: (gst_pad_template_get_caps_by_name):
remove C++ comment
* gst/gstpad.h:
deprecate gst_pad_template_get_caps_by_name, it doesn't work anyway
* gst/gststructure.c: (gst_structure_value_get_generic_type),
(gst_structure_to_string):
keep the correct type when using lists of ranges
* gst/gstvalue.c: (gst_value_list_prepend_value),
(gst_value_list_append_value):
copy the value before adding to the list (d'oh)
* gst/gstvalue.c: (gst_value_subtract_int_range_int),
(gst_value_subtract_int_range_int_range):
handle overflows correctly
* gst/gstvalue.c: (gst_value_subtract_from_list):
fix memleak
* testsuite/caps/caps.h:
add a caps that caused segfaults
Original commit message from CVS:
* gst/gstcaps.c: (gst_caps_from_string_inplace):
fix bug when converting from empty string.
* gst/gstcaps.c: (gst_caps_new_any), (gst_caps_new_simple),
(gst_caps_new_full_valist), (gst_caps_copy), (gst_caps_copy_1):
use gst_caps_new_empty to allocate a new caps. Only that function
allocates memory for caps now.
* gst/gstcaps.c: (gst_caps_remove_and_get_structure),
(gst_caps_remove_structure):
add ability to remove one structure (but not to header yet)
* gst/gstcaps.c: (gst_caps_compare_structures),
(gst_caps_simplify), (gst_caps_structure_figure_out_union),
(gst_caps_structure_simplify), (gst_caps_do_simplify),
* gst/gstcaps.h:
add gst_caps_do_simplify that tries to simplify a caps in place.
Deprecate old gst_caps_simplify function.
* testsuite/caps/caps.h:
add caps.h containing a common set of caps to test against.
* testsuite/caps/sets.c: (check_caps), (main):
use it.
* testsuite/caps/.cvsignore:
* testsuite/caps/Makefile.am:
* testsuite/caps/simplify.c: (check_caps), (main):
add test to check correctness and efficency of caps simplification.
Original commit message from CVS:
* gst/gstpad.c: (gst_pad_link_negotiate):
refuse to link if the link is not possible
* configure.ac:
* testsuite/Makefile.am:
* testsuite/negotiation/.cvsignore:
* testsuite/negotiation/Makefile.am:
* testsuite/negotiation/pad_link.c: (main):
add test that checks the above behaviour
Original commit message from CVS:
* common/as-libtool.mak: Fine-tune DLL building.
* configure.ac: Link plugins against libgstreamer. Define plugindir
(like gst-plugins)
* examples/plugins/Makefile.am: remove plugindir
* gst/autoplug/Makefile.am: DLL building fixes
* gst/elements/Makefile.am: DLL building fixes. Disable pipefilter on
Windows.
* gst/elements/gstelements.c: Conditionally disable pipefilter.
* gst/indexers/Makefile.am: DLL building fixes
* gst/schedulers/Makefile.am: DLL building fixes.
* libs/gst/bytestream/Makefile.am: DLL building fixes.
* libs/gst/control/Makefile.am: same
* libs/gst/getbits/Makefile.am: same
* testsuite/Makefile.am: New dlopen directory
* testsuite/dlopen/Makefile.am: Tests to check if libgstreamer works
when dlopened.
* testsuite/dlopen/dlopen_gst.c: (main): same
* testsuite/dlopen/loadgst.c: (do_test): same
Original commit message from CVS:
* testsuite/caps/Makefile.am:
* testsuite/caps/filtercaps.c: (main):
add test (that doesn't work right now, but should)
Original commit message from CVS:
* docs/gst/gstreamer-sections.txt: Remove deprecated symbols.
* docs/gst/tmpl/gstinfo.sgml: same
* docs/gst/tmpl/gstutils.sgml: Remove a bunch of bogus crap that
gtk-doc put here.
* gst/gstutils.h: Remove the \ that was confusing gtk-doc.
* examples/queue/queue.c: (main): We iterate pipelines, not
bins. (bug #139996)
Original commit message from CVS:
* testsuite/Makefile.am: define tests_ignore
* testsuite/Rules: Added new tests_ignore, which get compiled,
but not run (generally because they're inconsistent or have
heisenbugs). Now we can ensure all the .c files compile in
testsuite/.
* testsuite/bins/Makefile.am: define tests_ignore
* testsuite/bytestream/Makefile.am:
* testsuite/caps/Makefile.am:
* testsuite/clock/Makefile.am:
* testsuite/debug/Makefile.am:
* testsuite/debug/global.c: (gst_debug_log_one),
(gst_debug_log_two): Fix compilation problem.
* testsuite/dynparams/Makefile.am:
* testsuite/elements/Makefile.am:
* testsuite/ghostpads/Makefile.am:
* testsuite/indexers/Makefile.am:
* testsuite/parse/Makefile.am:
* testsuite/plugin/Makefile.am:
* testsuite/refcounting/Makefile.am:
* testsuite/refcounting/element_pad.c: (main): Don't return leak
results, because it's not calculated correctly.
* testsuite/refcounting/pad.c: (main): same
* testsuite/states/Makefile.am:
* testsuite/tags/Makefile.am:
* testsuite/threads/Makefile.am:
Original commit message from CVS:
* gst/gstbuffer.c: (_gst_buffer_initialize), (gst_buffer_get_type),
(gst_buffer_free_chunk): Added gst_buffer_get_type() and changed
to using it.
* gst/gstbuffer.h: Changed GST_BUFFER_TYPE to gst_buffer_get_type()
* gst/gstcaps.c: (gst_caps_is_fixed_foreach): Buffer is a fixed type
* gst/gstpad.c: (_gst_pad_default_fixate_foreach): same
* gst/gststructure.c: (gst_structure_set_valist),
(gst_structure_from_abbr), (gst_structure_to_abbr): Add vararg
support for buffers.
* gst/gsttag.c: (gst_tag_register): Constify a prototype that was
intended to be const.
* gst/gsttag.h: same
* gst/gstvalue.c: (gst_value_serialize_buffer),
(gst_value_deserialize_buffer), (_gst_value_initialize): Add code
to (de)serialize buffers.
* testsuite/caps/Makefile.am: Add a bit of buffer testing
* testsuite/caps/string-conversions.c: (main):
* testsuite/caps/value_serialize.c: add new test
Original commit message from CVS:
* testsuite/debug/category.c: (main):
* testsuite/debug/commandline.c: (main):
* testsuite/debug/output.c: (main):
fix tests to work again with debugging enabled
Original commit message from CVS:
* testsuite/debug/category.c: (main):
* testsuite/debug/commandline.c: (main):
* testsuite/debug/output.c: (main):
fix tests to work again with debugging enabled
Original commit message from CVS:
* gst/gstvalue.c: (gst_value_union_int_int_range),
(gst_value_union_int_range_int_range), (gst_value_can_union),
(gst_value_union), (_gst_value_initialize): Add some union
implementations. We didn't have any previously.
* testsuite/caps/Makefile.am:
* testsuite/caps/audioscale.c: (gst_audioscale_expand_value),
(gst_audioscale_getcaps), (test_caps), (main): A little test
that is the same as the caps manipulation in audioscale.
Original commit message from CVS:
* gst/gstbin.c: (gst_bin_set_element_sched),
(gst_bin_unset_element_sched):
don't add decoupled elements to schedulers - otherwise it's
impossible to control if a link to a decoupled element was already
removed from a scheduler or not.
* gst/schedulers/cothreads_compat.h:
* gst/schedulers/gthread-cothreads.h:
add COTHREADS_TYPE macro. Make do_cothread_set_func a macro so there
is no "unused" warning.
* gst/schedulers/Makefile.am:
* gst/schedulers/entryscheduler.c:
add new scheduler, based on ideas from talking to David and Martin.
It's supposed to be small and correct. Currently it's also slow (but
it's not noticable)
* examples/retag/retag.c: (main):
* testsuite/bytestream/test1.c: (main):
fix missing NULLs at end of variadic functions
* testsuite/elements/.cvsignore:
update
Original commit message from CVS:
* testsuite/elements/Makefile.am:
* testsuite/elements/gst-compprep-check:
add check to make sure gst-compprep works
* testsuite/elements/gst-inspect-check.in:
improve initialization output
* testsuite/gst-inspect-check:
remove old file
Original commit message from CVS:
* gst/gst.c (init_post): call gst_caps_get_type() instead of
_gst_caps_initalize()
* gst/gstcaps.c: Style fixes, stay closer to glib and friends
(_gst_caps_initialize): Remove, in favor for gst_caps_get_type()
* gst/gstcaps.h (GST_CAPS_IS_SIMPLE): Capitalize macro
* gst/gstcaps.h: Clean up
Original commit message from CVS:
2004-02-05 Andy Wingo <wingo@pobox.com>
* gst/gstpad.c (_gst_real_pad_fixate_accumulator):
s/pointer/boxed/.
* gst/gstmarshal.list (VOID:BOXED, BOXED:BOXED): New marshallers.
* gst/gstpad.c (gst_real_pad_class_init): Use a BOXED:BOXED
marshaller for ::fixate, and VOID:BOXED for ::caps-nego-failed,
with the type=GST_TYPE_CAPS. This allows language bindings to know
what kind of data they're dealing with.
* gst/gstcaps.c (_gst_caps_value_init): GBoxed values initialize
to NULL when g_value_init is called. GstCaps, which rolls its own
type implementation, now does the same instead of allocating empty
caps.
(_gst_caps_initialize, _gst_caps_collect_value,
_gst_caps_lcopy_value): Provide collect_value and lcopy_value type
table methods. This allows G_VALUE_COLLECT to work.
2004-02-05 Andy Wingo <wingo@pobox.com>
* configure.ac:
* testsuite/Makefile.am (SUBDIRS):
* testsuite/ghostpads/Makefile.am:
* testsuite/ghostpads/ghostpads.c: A new test for ghost pads.
* gst/gstpad.c (gst_pad_add_ghost_pad, gst_pad_remove_ghost_pad):
These two routines are the only ones that set
GST_GPAD_REALPAD(gpad), the ghost pad list, and the ghost pad's
pad template. They should be made static, depending on ABI needs.
(gst_real_pad_dispose): Handle the case of ghost pads without a
parent. Assert after dealing with ghost pads that the ghost pad
list is empty.
(gst_ghost_pad_class_init): New property added, ::real-pad. Can be
set after creation.
(gst_ghost_pad_dispose): Set ::real-pad to NULL.
(gst_ghost_pad_set_property, gst_ghost_pad_get_property): New
functions. set_property will call add_ghost_pad/remove_ghost_pad
as appropriate.
(gst_ghost_pad_new): All the work is offloaded to g_object_new.
* gst/gstelement.c (gst_element_add_pad): Handle ghost pads as well.
(gst_element_add_ghost_pad): Remove code duplicated from _add_pad.
(gst_element_remove_pad): Handle ghost pads as well.
(gst_element_remove_ghost_pad): Deprecated (could be removed,
depending on API-stability needs).
2004-02-05 Andy Wingo <wingo@pobox.com>
* gst/gstbin.[ch]: (gst_bin_get_by_interface): GTypes are scalars,
of course they're const
Original commit message from CVS:
2004-01-30 Laurent Vivier <Laurent.Vivier@bull.net>
reviewed by Benjamin Otte
parts of the patch submitted in bug #113913
* configure.ac:
use AC_C_INLINE. Use = instead of == with test
* examples/plugins/example.c:
* gst/autoplug/gstspideridentity.c:
* gst/elements/gstfdsrc.c:
* gst/elements/gstfilesrc.c:
* gst/elements/gstidentity.c:
* gst/elements/gstmultidisksrc.c:
* gst/elements/gststatistics.c:
* gst/gstelement.c:
* gst/gstobject.c:
* gst/gstpad.c:
* gst/gstpipeline.c:
* gst/gstthread.c:
don't end enums with a comma
* gst/gstindex.c: (gst_index_compare_func):
do explicit casting to gint
* gst/gsttrace.c: (gst_trace_text_flush):
#define strsize as a macro
Original commit message from CVS:
* configure.ac: Add detection for HAVE_PRINTF_EXTENSION and
GST_PRINTF_EXTENSION_FORMAT_DEFINE.
* docs/random/ds/0.9-suggested-changes: Notes from Company.
* gst/gstcaps.c: (gst_caps_to_string): Add comment.
* gst/gstconfig.h.in: Add define for GST_PTR_FORMAT
* gst/gstinfo.c: (_gst_debug_init), (gst_debug_print_object),
(gst_debug_log_default), (_gst_info_printf_extension),
(_gst_info_printf_extension_arginfo): Add printf extension.
* gst/gstinfo.h: remove G_GNUC_PRINTF, because it doesn't work with %P
* gst/gststructure.c: (gst_structure_to_string),
(_gst_structure_parse_value): Use gst_value_deserialize() and
remove old code.
* gst/gstvalue.c: (gst_value_deserialize_fourcc),
(gst_value_deserialize_boolean), (gst_strtoi),
(gst_value_deserialize_int), (gst_value_deserialize_double),
(gst_value_deserialize_string), (gst_value_deserialize): Implement
a bunch of deserialize functions and gst_value_deserialize.
* gst/gstvalue.h: er, _de_serialize, not unserialize
* testsuite/caps/string-conversions.c: (main): We don't currently
handle (float) in caps, so convert these to (double).
* testsuite/debug/Makefile.am: Add new test for the printf extension
* testsuite/debug/printf_extension.c: (main): same
Original commit message from CVS:
2004-01-18 Colin Walters <walters@verbum.org>
* examples/retag/retag.c: Call gst_init before processing
program args. Add g_assert to _link_many call.
Original commit message from CVS:
* gst/gstcaps.h:
Added gst_caps_is_simple() macro.
* testsuite/caps/caps.c: (test1):
* testsuite/caps/intersect2.c: (main):
* testsuite/caps/intersection.c: (main):
Fixes to make 'make check' work again after removing
gst_caps_is_chained().
Original commit message from CVS:
2004-01-13 Benjamin Otte <in7y118@public.uni-hamburg.de>
* gst/gstclock.c: (gst_clock_class_init), (gst_clock_init),
(gst_clock_set_speed), (gst_clock_set_active),
(gst_clock_is_active), (gst_clock_reset),
(gst_clock_handle_discont):
* gst/gstclock.h:
deprecate old interface and disable functions that aren't in use
anymore.
* gst/gstelement.h:
* gst/gstelement.c: (gst_element_get_time), (gst_element_wait),
(gst_element_set_time), (gst_element_adjust_time):
add concept of "element time" and functions to get/set this time.
* gst/gstelement.c: (gst_element_change_state):
update element time correctly.
* gst/gstelement.c: (gst_element_get_compatible_pad_filtered):
This is a debug message, not a g_critical.
* gst/gstpad.c: (gst_pad_event_default):
handle discontinuous events right with element time.
* gst/gstscheduler.c: (gst_scheduler_state_transition):
update to clocking fixes.
set clocks on elements in READY=>PAUSED. The old behaviour caused
a wrong element time on the first element that started playing.
* gst/schedulers/gstbasicscheduler.c:
(gst_basic_scheduler_class_init):
* gst/schedulers/gstoptimalscheduler.c:
(gst_opt_scheduler_class_init):
remove code that just implements the default behaviour.
* gst/elements/gstfakesink.c: (gst_fakesink_chain):
update to use new clocking functions
* testsuite/clock/clock1.c: (gst_clock_debug), (main):
* testsuite/clock/clock2.c: (gst_clock_debug), (main):
update to test new element time.
* gst/autoplug/gstspideridentity.c: (gst_spider_identity_getcaps):
use _get_allowed_caps instead of _get_caps. This catches filtered
caps correctly.
* testsuite/debug/commandline.c:
update for new GST_DEBUG syntax.
* testsuite/threads/Makefile.am:
disable a test that only works sometimes.
Original commit message from CVS:
2004-01-07 Ronald Bultje <rbultje@ronald.bitfreak.net>
* gst/elements/gstfilesink.c: (gst_filesink_set_location):
Fix for if we pass NULL as property to location.
* gst/elements/gstpipefilter.c: (gst_pipefilter_init),
(gst_pipefilter_handle_event), (gst_pipefilter_chain):
Fix for instantiate-test (see below).
* gst/gststructure.c: (_gst_structure_parse_value):
Fix compile error on gcc-2.96.
* configure.ac:
* tests/Makefile.am:
* tests/instantiate/Makefile.am:
* tests/instantiate/create.c: (create_all_elements), (main):
Add a test that instantiates all elements. This makes it easy to
track dead code for old API/design (like setting event functions
on sink pads and so on).
Original commit message from CVS:
* gst/elements/gsttee.c: (gst_tee_init), (gst_tee_request_new_pad):
Remove usage of gst_pad_proxy_fixate.
* gst/gstcaps.c: (gst_caps_append), (gst_caps_append_structure),
(gst_caps_split_one), (gst_caps_replace):
Add poisoning code.
* gst/gstmarshal.list:
Add pointer__pointer for fixate signal
* gst/gstpad.c: (gst_real_pad_class_init),
(_gst_real_pad_fixate_accumulator), (gst_pad_link_fixate),
(_gst_pad_default_fixate_func), (gst_pad_proxy_fixate),
(gst_pad_set_explicit_caps), (gst_pad_template_new):
Add poisoning code. Add fixate signal on RealPad. Change
set_explicit_caps() to take const GstCaps, like try_set_caps().
* gst/gstpad.h:
* testsuite/caps/Makefile.am:
* testsuite/caps/app_fixate.c: Add a test for the fixate signal
Original commit message from CVS:
merge in tagging
Includes:
- gsttag.[ch] - The definition of GstTagList and tag registering/querying
- gsttaginterface.[ch] - Interface for elements that can handle setting of tags
- updates and merges to gststructure.[ch] and gstvalue.[ch]
- testsuite/tags - some tests for tagging
- bugfixes
- updates to make make distcheck work
- updates the version number to 0.7.2.1
Does not include:
- including tagging stuff in docs
- extensive tests
Original commit message from CVS:
threadb and threadc are unexpectedly passing on my system (glibc2.3.1 and linux-2.6.0-test9). Commenting them out because they are expectedly failing on other systems.
Original commit message from CVS:
Massive patch to make 'make check' work properly. Many compilation
fixes -- everything should compile now. Some tests pass, some
fail; the expected sucess/failure is coded in the Makefile.am's.
gst-register is properly run for both 'make check' and 'make distcheck'.
Much of the common infrastructure is coded in testsuite/Rules.
Original commit message from CVS:
s/GstBuffer/GstData/ in the API where you can pass events. Fix the plugins to deal with that. Fixes#113488. Also includes scheduler patches, and probably fixes some queue bugs relating to events and buffers.
Original commit message from CVS:
kill some memleaks, add ::signal-handoffs property to fakesrc/sink (default FALSE), cache return values of _gst_debug_nameof_funcptr
Original commit message from CVS:
GST_DEBUG reorganization
This is a big diff (ca 450k), containing loads of stuff:
- gstinfo.[ch] complete rewrite
- changing of all GST_DEBUG messages to reflect that change
- reorganization of subsystem disabling
- addition of gstconfig.h.in so we can track the disablings
- <gst/gst.h> does not include <unistd.h> and <config.h> anymore
- documentation updated for gstinfo stuff (build the docs yourself to know what changed)
- bugfixes for making of the docs (files from CVS are not deleted anymore
- testsuite for debugging changes in testsuite/debug
expect breakage
Original commit message from CVS:
destroyed gst_*_destroy in the examples - use gst_object_unref instead - includes some tries to bufixes, most of the tests still fail
Original commit message from CVS:
- Add more --disable options
- fix makefiles to only compile non-disabled features
- some compile fixes.
- removed extratypes, added gsturitype
- make get/set clock on a bin overridable
- some portability fixes for GUINT64
- separate pools from gstregistry.[ch] into gstregistrypool.[ch]
- make gstobject size fixed, even if we disabled load/save
- don't use 'new' as a variable as it is not a valib C++ variable
Original commit message from CVS:
Convert %lld and %llu in printf formats to G_G[U]INT64_FORMAT. Fix
pointer<->int conversion. Fixes warnings on alpha.
Original commit message from CVS:
- major API breakage (one of the last, I promise...)
- GST_PAD_QUERY -> GST_QUERY
- GstPadQuery -> GstQuery
- Move query definitions to gstquery.h to allow for future dynamic
query types.
- remove _pad_handles_* in favour of extra format/event functions to
make the same checks.
- fix elements
- Implemented missing query/event/formats functions in gstelement
