Commit graph

1343 commits

Author SHA1 Message Date
Wim Taymans
2aaf72d259 tests: add a unit-test for the stream-status
Add a unit test for the STREAM_STATUS messages.
2009-05-12 00:07:06 +02:00
Wim Taymans
2efaf65c4c tests: fix unit-tests for new stream-status
Fix the unit-tests so that they don't fail on the new stream-status messages
that are emited now.
2009-05-12 00:00:54 +02:00
Stefan Kost
dd3c9ab6b6 controller: factor out duplicated code and add a description for it.
Also fix typo in the tests while reviewing them.
2009-04-14 22:08:56 +03:00
Tim-Philipp Müller
116c8be6bf API: add FIXME and DUMPMEM log levels and convenience macros
Two new log levels to dump FIXMEs into the log and to log data
in form of a hex dump (#578114).

API: GST_CAT_FIXME_OBJECT
API: GST_CAT_MEMDUMP_OBJECT
API: GST_CAT_FIXME
API: GST_CAT_MEMDUMP
API: GST_FIXME_OBJECT
API: GST_MEMDUMP_OBJECT
API: GST_FIXME
API: GST_MEMDUMP
2009-04-08 21:32:05 +01:00
Stefan Kost
c9917a1a84 tests: remove the hacks to workaround the pad-leak 2009-04-08 17:49:18 +03:00
Sebastian Dröge
322d0b0fd8 tests: Don't define global buffers variable, it's already defined by libgstcheck 2009-03-30 15:45:02 +02:00
Wim Taymans
df30f60048 clock: fix 2 wakeup races.
when an entry being waited on in the async thread is unscheduled, clear the
wakeup queue so we can continue waiting on other entries.
When an entry being waited on in the async thread is unlocked because an earlier
entry was added to the list, set the entry to OK again. This makes sure that
only the entries being waited on have the BUSY flag set and wake up the timer
poll when they are unscheduled.
2009-03-26 15:59:17 +01:00
Tim-Philipp Müller
c4e10b9535 API: add gst_tag_list_get_buffer{_index}
Convenience API, mostly for image tags, so people don't have to
figure out the whole GValue/GstValue thing just for this.
2009-03-26 14:21:10 +00:00
Jan Schmidt
4ef524f5ec systemclock: Clean up the tests a bit.
Add some cleanups to the system clock tests, to free all the memory and
unschedule/unref all clock IDs we allocate.

Use a mutex in one test to avoid potential threading problems on multicore
machines.
2009-03-26 12:18:09 +00:00
Jan Schmidt
b35f424858 systemclock: Add a test for sync/async clockid interactions
This test randomly hangs if there are problems with the reliability of
unscheduling sync and async clockID's on the system clock.
2009-03-26 12:18:09 +00:00
Wim Taymans
da0060d3aa pad: call new callbacks set in the block callback
Keep track of when a new callback is installed in the callback and call the new
callback in that case.
Add unit test for checking pad blocking.
Fixes #573823.
2009-03-09 11:48:36 +01:00
Sebastian Dröge
3c6448c64e API: Add gst_util_array_binary_search() for binary searchs on a sorted array
This will be mostly useful in all elements that have some kind of internal
seek/index table. Currently almost all of them (or even all of them)
are using a linear search although the used array is already sorted,
wasting some CPU time without good reason.

Fixes bug #573623.
2009-03-02 16:17:45 +01:00
Edward Hervey
b81b9c0e59 Remove core file from previous commit 2009-02-22 22:09:39 +01:00
Alessandro Decina
d3940f520b GstPad: Add gst_pad_set_blocked_async_full
This allows connecting a GDestroyNotify for when the callback is removed/replaced.
Partially fixes #514717
2009-02-22 20:01:05 +01:00
Wim Taymans
4b986a4a94 Add message to request a state change
Add a GST_MESSAGE_REQUEST_STATE that can be posted by element when they would
like to have the application change the state of the pipeline. the primary use
case is to pause the pipeline when an audio mixer is mixing a higher priority
stream but it can also be used for other purposes.

Add some docs and a unit test.

Implement the REQUEST_STATE message in gst-launch.

API: gst_message_new_request_state()
API: gst_message_parse_request_state()
API: GST_MESSAGE_REQUEST_STATE
2009-02-18 15:31:55 +01:00
Wim Taymans
26f368f7e7 Clear target when the target pad disappears
When the target pad disappears (because it was explicitly unlinked or the
element was removed/unreffed) make sure we receive a notify with the unlink
function on the proxy pad and clear the target. We use a simple flag to not do
this and cause deadlocks when the target was changed explicitly using the
ghostpad functions.

Update the unit test because we now unref the target sooner (and correctly).
2009-02-16 12:58:34 +01:00
Stefan Kost
697055b3e4 tests: GstClockTime is always >= 0 2009-02-05 13:57:05 +02:00
Wim Taymans
fe4233120c GstBaseSink: avoid calling preroll multiple times
Fix a regression introduced by fix for #567725 in commit
1c7ab4ed4f. We should only call the preroll
function once namely when we did not yet commit the state change.

Add a unit test to check that we call the preroll function when interrupting the
clock_wait (see #567725).

Add a unit test to check that we only call the preroll function once.
2009-02-03 12:52:49 +01:00
Jan Schmidt
6f9b066019 check: Fix comment about the timeout for generic stress test.
Setting the timeout to 0 makes it infinite, so fix the comment
above accordingly.
2009-01-31 21:35:22 +00:00
Jan Schmidt
da0a34e493 check: Increase timeout for the tee test
The tee stress test keeps timing out for me on one of the slower
machines, so increase the timeout to 3 mins.
2009-01-31 21:35:21 +00:00
Stefan Kost
dab725ee69 Add a trivial source for tracking gst_init time accross versions. 2009-01-29 17:46:52 +02:00
Jan Schmidt
e89ce19497 Update a bunch of gitignores to clean up my git status output 2009-01-23 16:08:40 +00:00
Wim Taymans
ae76b3d606 do not call the unlink function on the target pad when the ghostpad
is unlinked.
Add some unit tests for this behaviour.
Fixes #566936.
2009-01-21 12:21:49 +01:00
Tim-Philipp Müller
0ee5e36cfb gst/gstbus.c: Fix order of members in GstBusSource structure - the first member must be the parent structure ie. GSou...
Original commit message from CVS:
* gst/gstbus.c: (gst_bus_set_main_context), (gst_bus_create_watch):
Fix order of members in GstBusSource structure - the first member
must be the parent structure ie. GSource. Should make bus sources
attached to non-default main contexts work in all cases now (ie.
primarily in cases where the callback has a non-NULL user data
argument). Fixes #562170.
* tests/check/gst/gstbus.c: (test_custom_main_context):
Add unit test for the above, based on code by
Justin Karneges <justin at affinix com>.
2009-01-17 21:04:41 +00:00
Tim-Philipp Müller
428ead89b8 gst/gstbus.c: Make GstBusSource work with non-default main contexts (#562170).
Original commit message from CVS:
* gst/gstbus.c: (gst_bus_dispose), (gst_bus_get_property),
(gst_bus_wakeup_main_context), (gst_bus_set_main_context),
(gst_bus_post), (gst_bus_source_prepare), (gst_bus_source_finalize),
(gst_bus_create_watch):
Make GstBusSource work with non-default main contexts (#562170).
* tests/check/gst/gstbus.c: (message_func_eos), (message_func_app),
(test_watch), (test_watch_with_custom_context), (gst_bus_suite):
Add test case for GstBusSource with a non-default main context.
* tests/check/libs/.cvsignore:
Ignore more.
2008-12-27 17:41:11 +00:00
Alessandro Decina
1b13418a0a Don't forward gst_pad_set_caps() on a source ghostpad to its target.
Original commit message from CVS:
* gst/gstghostpad.c:
* tests/check/gst/gstghostpad.c:
Don't forward gst_pad_set_caps() on a source ghostpad to its target.
That would cause the ghostpad to emit notify::caps two times (fist
from gst_pad_set_caps() and after from on_src_target_notify()).
2008-12-19 15:11:06 +00:00
Wim Taymans
f1be570630 tests/check/gst/gstghostpad.c: Add some more unit-tests for the ghostpad notify signal, one of which currently fails.
Original commit message from CVS:
* tests/check/gst/gstghostpad.c: (ghost_notify_caps),
(GST_START_TEST):
Add some more unit-tests for the ghostpad notify signal, one of which
currently fails.
2008-12-19 11:24:36 +00:00
Alessandro Decina
c0a2c5839e In a source ghostpad, when caps are changed in the target pad, the change needs to be reflected in the ghostpad.
Original commit message from CVS:
* gst/gstghostpad.c:
* tests/check/gst/gstghostpad.c:
In a source ghostpad, when caps are changed in the target pad, the
change needs to be reflected in the ghostpad.
Fixes #564863.
2008-12-17 16:16:45 +00:00
Stefan Kost
f28a2a6cfc More complete unit tests. Fix handling of empty taglists (they were not merged before).
Original commit message from CVS:
* gst/gsttaglist.c:
* tests/check/gst/gsttag.c:
More complete unit tests. Fix handling of empty taglists (they were
not merged before).
2008-12-16 09:23:21 +00:00
Sebastian Dröge
c09870ede4 tests/check/libs/controller.c: This test should return TRUE now as syncing an uncontrolled object will succeed now (t...
Original commit message from CVS:
* tests/check/libs/controller.c: (GST_START_TEST):
This test should return TRUE now as syncing an uncontrolled
object will succeed now (there's nothing to sync).
2008-12-09 10:58:01 +00:00
Wim Taymans
bb0cd4e7f1 tests/old/testsuite/: Remove references to deprecated API g_mem_chunk*.
Original commit message from CVS:
* tests/old/testsuite/caps/intersection.c: (main):
* tests/old/testsuite/plugin/loading.c: (main):
Remove references to deprecated API g_mem_chunk*.
Fixes #560442.
2008-11-13 18:03:23 +00:00
Wim Taymans
d2e5ffde24 gst/gstsegment.c: Set the last_stop to a more meaningful position when configuring the segment. ie. the start/stop of...
Original commit message from CVS:
* gst/gstsegment.c: (gst_segment_set_newsegment_full):
Set the last_stop to a more meaningful position when configuring the
segment. ie. the start/stop of the segment or clipped against the
updated segment boundaries.
* tests/check/gst/gstsegment.c: (GST_START_TEST):
Add some unit tests for the last_stop.
2008-10-23 09:49:07 +00:00
Dig Ge
8686083e85 tests/examples/helloworld/helloworld.c: Fix copy'n'paste bug in hello world example (#556900).
Original commit message from CVS:
Patch by: Dig Ge <dig.ge.cn at gmail com>
* tests/examples/helloworld/helloworld.c: (main):
Fix copy'n'paste bug in hello world example (#556900).
2008-10-19 10:13:39 +00:00
Sebastian Dröge
075811e654 plugins/elements/gsttee.c: Fix flow aggregation of tee. Error out immediately for all flow returns except OK and NOT_...
Original commit message from CVS:
* plugins/elements/gsttee.c: (gst_tee_handle_buffer):
Fix flow aggregation of tee. Error out immediately for all flow returns
except OK and NOT_LINKED, return NOT_LINKED if all pads are not linked
and return OK if at least one pad is linked.
Before we errored out on "fatal" flow returns (i.e. not for WRONG_STATE)
and otherwise returned the flow return of the last pad, which is wrong.
* tests/check/elements/tee.c: (_fake_chain), (_fake_chain_error),
(GST_START_TEST), (tee_suite):
Add unit tests for the flow aggregation.
2008-10-14 12:34:56 +00:00
Wim Taymans
97ec47cabb docs/design/part-TODO.txt: Remove item from the todo list because it was fixed with the latency state change rewrites.
Original commit message from CVS:
* docs/design/part-TODO.txt:
Remove item from the todo list because it was fixed with the latency
state change rewrites.
* docs/design/part-seeking.txt:
* docs/design/part-segments.txt:
Update some docs.
* gst/gstevent.c: (gst_event_new_new_segment_full),
(gst_event_parse_new_segment_full), (gst_event_new_buffer_size),
(gst_event_parse_buffer_size), (gst_event_new_qos),
(gst_event_parse_qos), (gst_event_new_seek),
(gst_event_parse_seek), (gst_event_new_latency),
(gst_event_parse_latency):
Use quarks to construct and parse events.
* gst/gstquark.c: (_priv_gst_quarks_initialize):
* gst/gstquark.h:
Add some more quarks to the table.
Emit a warning when the quark tables are not in sync.
* tests/check/gst/gstbus.c: (GST_START_TEST):
Add an assert.
2008-10-13 17:19:25 +00:00
Wim Taymans
bc8e367885 gst/gstbin.c: The message src can be NULL, don't try to print the object names in that case.
Original commit message from CVS:
* gst/gstbin.c: (gst_bin_remove_func), (update_degree),
(gst_bin_handle_message_func):
The message src can be NULL, don't try to print the object names in that
case.
* libs/gst/base/gstbasesink.c: (gst_base_sink_pad_activate):
Add some more debug info.
* tests/check/pipelines/simple-launch-lines.c: (run_pipeline),
(GST_START_TEST):
Add some debug.
Fix the test, pull based sinks go ASYNC to PAUSED, just like other
scheduling modes.
2008-10-10 10:38:12 +00:00
Edward Hervey
3159228799 tests/check/gst/gstutils.c: We now see 3 events go through our pad, since basesink now sends upstream latency events.
Original commit message from CVS:
* tests/check/gst/gstutils.c: (probe_do_nothing), (data_probe),
(buffer_probe), (event_probe), (GST_START_TEST):
We now see 3 events go through our pad, since basesink now sends
upstream latency events.
2008-10-10 09:11:10 +00:00
Jan Schmidt
c64e9b0c7a tests/check/: Add Sparc ABI checks
Original commit message from CVS:
* tests/check/Makefile.am:
* tests/check/gst/gstabi.c:
* tests/check/gst/struct_sparc.h:
* tests/check/libs/libsabi.c:
* tests/check/libs/struct_sparc.h:
Add Sparc ABI checks
* tests/check/gst/gstvalue.c: (GST_START_TEST):
Cast signed integer to unsigned to avoid a compiler warning.
2008-10-07 15:12:21 +00:00
Olivier Crete
ee0eaf824b gst/gstbin.c: Keep track of pads that are being linked/unlinked and resync the state changes.
Original commit message from CVS:
Base on Patch by: Olivier Crete <tester at tester dot ca>
* gst/gstbin.c: (gst_bin_init), (gst_bin_add_func),
(gst_bin_remove_func), (update_degree),
(gst_bin_sort_iterator_new), (gst_bin_handle_message_func):
Keep track of pads that are being linked/unlinked and resync the state
changes.
* gst/gstpad.c: (gst_pad_get_direction),
(gst_pad_set_chain_function), (gst_pad_set_getrange_function),
(gst_pad_set_checkgetrange_function), (gst_pad_unlink),
(gst_pad_link_prepare), (gst_pad_link),
(gst_pad_event_default_dispatch), (gst_pad_chain), (gst_pad_push),
(gst_pad_check_pull_range), (gst_pad_get_range),
(gst_pad_pull_range):
Some code cleanups, use macros to check pad direction.
Don't need to take the lock on the pad direction.
Post structure change when pads are linked/unlinked.
Change some checks into _return_if_fail().
* tests/check/gst/gstbin.c:
(test_link_structure_change_state_changed_sync_cb),
(GST_START_TEST), (gst_bin_suite):
Add testcase for pad link/unlinke resync during a state change.
Fixes #510354.
2008-10-06 16:15:02 +00:00
Sebastian Dröge
b377c58e43 Add bit reader and byte reader classes, including documentation and an extensive unit test suite. Fixes bug #553554.
Original commit message from CVS:
* docs/libs/gstreamer-libs-docs.sgml:
* docs/libs/gstreamer-libs-sections.txt:
* libs/gst/base/Makefile.am:
* libs/gst/base/gstbitreader.c: (gst_bit_reader_new),
(gst_bit_reader_new_from_buffer), (gst_bit_reader_free),
(gst_bit_reader_init), (gst_bit_reader_init_from_buffer),
(gst_bit_reader_set_pos), (gst_bit_reader_get_pos),
(gst_bit_reader_get_remaining), (gst_bit_reader_skip),
(gst_bit_reader_skip_to_byte):
* libs/gst/base/gstbitreader.h:
* libs/gst/base/gstbytereader.c: (GDOUBLE_SWAP_LE_BE),
(GFLOAT_SWAP_LE_BE), (gst_byte_reader_new),
(gst_byte_reader_new_from_buffer), (gst_byte_reader_free),
(gst_byte_reader_init), (gst_byte_reader_init_from_buffer),
(gst_byte_reader_set_pos), (gst_byte_reader_get_pos),
(gst_byte_reader_get_remaining), (gst_byte_reader_skip),
(gst_byte_reader_get_uint8), (gst_byte_reader_get_int8),
(gst_byte_reader_peek_uint8), (gst_byte_reader_peek_int8),
(gst_byte_reader_get_uint24_le), (gst_byte_reader_get_uint24_be),
(gst_byte_reader_get_int24_le), (gst_byte_reader_get_int24_be),
(gst_byte_reader_peek_uint24_le), (gst_byte_reader_peek_uint24_be),
(gst_byte_reader_peek_int24_le), (gst_byte_reader_peek_int24_be):
* libs/gst/base/gstbytereader.h:
* tests/check/Makefile.am:
* tests/check/libs/bitreader.c: (GST_START_TEST),
(gst_bit_reader_suite):
* tests/check/libs/bytereader.c: (GST_START_TEST),
(gst_byte_reader_suite):
Add bit reader and byte reader classes, including documentation
and an extensive unit test suite. Fixes bug #553554.
2008-10-06 12:41:53 +00:00
Jan Schmidt
86db1f680c Fix assertion in basetransform when the subclass chooses not to allocate a buffer in prepare_buffer(), and make capsf...
Original commit message from CVS:
* libs/gst/base/gstbasetransform.c:
* plugins/elements/gstcapsfilter.c:
* tests/check/Makefile.am:
* tests/check/elements/.cvsignore:
* tests/check/elements/capsfilter.c:
Fix assertion in basetransform when the subclass chooses not to
allocate a buffer in prepare_buffer(), and make capsfilter error out
cleanly if requested to apply caps that don't completely specify the
buffer. Fixes #551509
2008-09-28 21:19:15 +00:00
Olivier Crete
68037404b8 Add threadsafe replacement functions for getting internal links of an element. Deprecate the old internal links funct...
Original commit message from CVS:
Based on patch by: Olivier Crete <tester at tester dot ca>
* docs/gst/gstreamer-sections.txt:
* win32/common/libgstreamer.def:
* gst/gstpad.c: (gst_pad_init),
(gst_pad_set_iterate_internal_links_function),
(int_link_iter_data_free), (iterate_pad),
(gst_pad_iterate_internal_links_default),
(gst_pad_iterate_internal_links), (gst_pad_get_internal_links):
* gst/gstpad.h:
Add threadsafe replacement functions for getting internal links of an
element. Deprecate the old internal links functions.
API:GstPad::gst_pad_set_iterate_internal_links_function()
API:GstPad::GstPadIterIntLinkFunction
API:GstPad::gst_pad_iterate_internal_links()
API:GstPad::gst_pad_iterate_internal_links_default()
* gst/gstghostpad.c: (gst_proxy_pad_do_iterate_internal_links),
(gst_proxy_pad_init):
Implement threadsafe internal links.
* tests/check/elements/tee.c: (GST_START_TEST), (tee_suite):
Unit test for internal links on tee. See #549504.
2008-09-01 10:42:04 +00:00
Edward Hervey
1639fb5905 tests/check/Makefile.am: libs/transform1 test requires libs/test_transform.c
Original commit message from CVS:
* tests/check/Makefile.am:
libs/transform1 test requires libs/test_transform.c
2008-08-30 12:57:47 +00:00
Edward Hervey
dd80b2030c Fix all leaks due to the bug in gst_pad_template_new() by which it does not steal the refcount of the given caps as s...
Original commit message from CVS:
* gst/gstutils.c: (gst_element_get_compatible_pad):
* tests/check/gst/gstghostpad.c: (GST_START_TEST):
* tests/check/gst/gstpad.c: (name_is_valid), (GST_START_TEST):
Fix all leaks due to the bug in gst_pad_template_new() by which it does
not steal the refcount of the given caps as stated.
REVERT THIS COMMIT ONCE FIXED !
REVERT THIS COMMIT ONCE FIXED !
REVERT THIS COMMIT ONCE FIXED !
REVERT THIS COMMIT ONCE FIXED !
REVERT THIS COMMIT ONCE FIXED !
REVERT THIS COMMIT ONCE FIXED !
2008-08-30 11:55:59 +00:00
Wim Taymans
e93b94afdf libs/gst/base/gstbasesink.c: Improve position reporting in the flushing state.
Original commit message from CVS:
* libs/gst/base/gstbasesink.c: (gst_base_sink_render_object),
(gst_base_sink_event), (gst_base_sink_chain_unlocked),
(gst_base_sink_negotiate_pull), (gst_base_sink_pad_activate_pull),
(gst_base_sink_get_position), (gst_base_sink_change_state):
Improve position reporting in the flushing state.
Also report the position when we are not yet prerolled but we
have a newsegment event. Fixes #543444.
Improve the pull-based negotiation code.
* tests/check/elements/fakesink.c: (GST_START_TEST),
(fakesink_suite):
Add testcase for position reporting while flushing in PAUSED and
PLAYING.
* tests/check/generic/sinks.c: (GST_START_TEST):
Update unit-test, we can now query the position as soon as we receive a
NEWSEGMENT event.
2008-08-19 16:47:07 +00:00
Ole André Vadla Ravnås
fe969e6391 plugins/elements/gsttee.*: Protect pad_alloc with a new lock so that we can be sure that nothing is performing a pad_...
Original commit message from CVS:
Patch by: Ole André Vadla Ravnås  <ole.andre.ravnas at tandberg com>
* plugins/elements/gsttee.c: (gst_tee_finalize), (gst_tee_init),
(gst_tee_request_new_pad), (gst_tee_release_pad),
(gst_tee_find_buffer_alloc), (gst_tee_buffer_alloc):
* plugins/elements/gsttee.h:
Protect pad_alloc with a new lock so that we can be sure that nothing is
performing a pad_alloc when removing the pad. Fixes #547835.
* tests/check/elements/tee.c: (buffer_alloc_harness_setup),
(buffer_alloc_harness_teardown), (app_thread_func),
(final_sinkpad_bufferalloc), (GST_START_TEST), (tee_suite):
Added testcase for shutdown race.
2008-08-15 17:01:07 +00:00
Wim Taymans
dc9983cbea libs/gst/base/gstbasetransform.c: Don't overwrite the outsize when calculating the expected size of a new buffer beca...
Original commit message from CVS:
* libs/gst/base/gstbasetransform.c:
(gst_base_transform_transform_caps),
(gst_base_transform_prepare_output_buffer),
(gst_base_transform_buffer_alloc), (gst_base_transform_suggest):
Don't overwrite the outsize when calculating the expected size of a new
buffer because we still need it in case we cannot process the new
buffer.
When converting the size of the new buffer to an upstream size, actually
use the expected size of the buffer, not some other random value.
Use an atomic int to signal that a new upstream caps suggestion is
available.
When we can convert the current buffer to a new format, check if the
buffer size is of the expected size and allocate a new buffer of the
expected size when this is not the case.
* tests/check/libs/transform1.c: (GST_START_TEST):
remove ifdeffed code from the unit test.
2008-08-14 13:57:58 +00:00
Wim Taymans
b08cd83cbb gst/gstcaps.c: Fix subset test.
Original commit message from CVS:
* gst/gstcaps.c: (gst_caps_structure_is_subset_field):
Fix subset test.
* tests/check/gst/gstcaps.c: (GST_START_TEST):
Improve unit test subset tests and add a testcase for the subset failure
cases.
* tests/check/gst/gstvalue.c: (GST_START_TEST), (gst_value_suite):
Improve subtraction unit test.
2008-08-07 12:28:28 +00:00
Stefan Kost
71ba3c6fce tests/examples/metadata/read-metadata.c: Don't leak old taglist.
Original commit message from CVS:
* tests/examples/metadata/read-metadata.c:
Don't leak old taglist.
2008-08-05 15:42:00 +00:00
Olivier Crete
70a4cad10c gst/gststructure.c: Avoid overflows in fixation code when dealing with MAXINT values, which v4l2src seems to do.
Original commit message from CVS:
Patch by: Olivier Crete <tester at tester dot ca>
* gst/gststructure.c:
(gst_structure_fixate_field_nearest_fraction):
Avoid overflows in fixation code when dealing with MAXINT values, which
v4l2src seems to do.
Fixes #546328.
* tests/check/gst/gststructure.c: (GST_START_TEST):
Make a unit test to check the fix.
2008-08-05 15:03:27 +00:00