This allows to add pad templates and set metadata in class_init instead of
base_init. base_init is a concept that is not supported by almost all
languages and copying the templates/metadata for subclasses is the more
intuitive way of doing things.
Subclasses can override pad templates of parent classes by adding a new
template with the same now.
Also gst_element_class_add_pad_template() now takes ownership of the
pad template, which was assumed by all code before anyway.
Fixes bug #491501.
Some applications are requesting the same pad name multiple times
and the behaviour is undefined and different from element to element
but we don't want to break applications that work just fine.
In 0.11 this check should be an assertion again, although elements
have to do manual checking if the pad already exists again because
it can't be done in a threadsafe way here.
This commit changes the request pad behaviour for plugins and applications.
Reopens Bug #402562
The proper fix for that bug is to keep track of created request pads.
This reverts commit a5e44ffffa.
gstelement.c: In function ‘gst_element_get_request_pad’:
gstelement.c:1052:18: error: variable ‘tmp’ set but not used [-Werror=unused-but-set-variable]
https://bugzilla.gnome.org/show_bug.cgi?id=640850
The new request_new_pad_full vmethod provides an additional caps field,
which allows elements to take better decision process.
Also, add a gst_element_request_pad() function to allow developers to be
able to specify which pad template they want a pad of.
Convert gstutils to use that new method instead of the old one when more
efficient.
This is useful for being able to request pads in a more flexible way,
especially when the element can provide pads whose caps depend on
runtime configuration and therefore can't provide pre-registered
pad templates.
API: GstElement::request_new_pad_full
API: gst_element_request_pad
https://bugzilla.gnome.org/show_bug.cgi?id=637300
Add a GstStructure to GstElementClass and GstElementFactory. Add setters/getter.
Handle it in the registry code. Print items in gst-inspect.
Fixes#396774.
API: gst_element_class_set_meta_data(), gst_element_factory_get_meta_data_detail()
Since everything GstXML related has been deprecated, we can now skip the
libxml includes from the public headers when GST_DISABLE_DEPRECATED is
defined.
See #463435.
Pipeline serialisation to and from XML is horribly broken for all
but the most simple use cases, and will likely never be fixed.
Make sure everyone playing around with these tools is aware of
this, to avoid frustration. See countless bug reports in bugzilla.
Fixes bug #622685.
A pad is 'negotiable' when its container element is in a state greater
than GST_STATE_READY
API:gst_pad_is_negotiable
API:gst_pad_set_negotiable
API:GST_PAD_NEGOTIABLE
https://bugzilla.gnome.org/show_bug.cgi?id=618644
Use gst_element_class_set_details_simple() instead. If you want to
convert automatically, here's a script:
for file in `git grep -l GstElementDetails`; do
sed -i -n -r '
1h
1!H
$ {
g
s/((\/\*[^\n]*\*\/)?\n)*[^\n]*GstElementDetails .* =\s*GST_ELEMENT_DETAILS\s*\((\"[^\"]*\",\s*\"[^\"]*\",\s*\"[^\"]*\",\s*(\"[^\"]*\"\s*)*)\);\n*(.*)gst_element_class_set_details \(([^,]*),\s*[^)]*\)/\n\n\5gst_element_class_set_details_simple (\6, \3)/
s/((\/\*[^\n]*\*\/)?\n)*[^\n]*GstElementDetails .* =\s*\{\s*(\"[^\"]*\",\s*\"[^\"]*\",\s*\"[^\"]*\",\s*(\"[^\"]*\"\s*)*)\};\n*(.*)gst_element_class_set_details \(([^,]*),\s*[^)]*\)/\n\n\5gst_element_class_set_details_simple (\6, \3)/
p
}' $file
~/gst/gstreamer/tools/gst-indent $file
done
There's not much point in using GST_DEBUG_FUNCPTR with GObject
virtual functions such as get_property, set_propery, finalize and
dispose, since they'll never be used by anyone anyway. Saves a
few bytes and possibly a tenth of a polar bear.
It is not too obvious that getting and releasing request pads is not entierly
symetrical regarding to the pad refcount. Add a note about that to the docs.
This might deserve a FIXME-0.11 too.
The first time one calls gst_element_factory_make(), gst recreates the plugin
feature and the element factory. As a side effect we ref the class to fill
in detail we already have filled from the registry cache. This patch changes
the behaviour to just update the existing entries. The factory is now attached
to the type and set in gst_element_base_class_init().
Add a start_time field and some methods. The start_time will contain the
running_time of when the element last went to paused. This time can be user to
report the position in PAUSED but also to do more correct clipping and
stepping later.
Add a gst_element_lost_state_full() with an extra argument to control
distribution of a new base_time. We will need this for flushing step
operations.
API: GstElement::gst_element_lost_state_full()
When an element lost its state but was busy doing a state change, still post the
async-start message with the base_time reset flag or else we might end up with
an old base_time.
this can happen when a sink is goin async to paused and then a flushing seek is
performed. This would cause the base_time to remain unmodified because the
async-start message was not sent.
Original commit message from CVS:
* gst/gstelement.c: (gst_element_message_full),
(gst_element_pads_activate):
* gst/gstobject.c: (gst_object_dispatch_properties_changed):
* gst/gstutils.c: (gst_pad_proxy_getcaps), (gst_pad_proxy_setcaps),
(gst_pad_add_data_probe_full), (gst_pad_add_event_probe_full),
(gst_pad_add_buffer_probe_full), (gst_pad_remove_data_probe),
(gst_pad_remove_event_probe), (gst_pad_remove_buffer_probe):
Assign debug statements to relevant categories instead of the 'default'
category so they don't get lost in debugging.
Original commit message from CVS:
Based on patch by: Antoine Tremblay <hexa00 at gmail dot com>
* gst/gstelement.c: (gst_element_sync_state_with_parent):
Avoid leaking the parent ref when we fail changing the state of the
element using gst_element_sync_state_with_parent(). Fixes#551978.
Original commit message from CVS:
* configure.ac:
* docs/gst/gstreamer-sections.txt:
* docs/gst/gstreamer.types:
* docs/gst/gstreamer.types.in:
* gst/Makefile.am:
* gst/gst.c:
* gst/gstbin.c: (gst_bin_class_init), (gst_bin_set_index_func):
* gst/gstconfig.h.in:
* gst/gstelement.c: (gst_element_get_index):
* gst/gstregistrybinary.c: (gst_registry_binary_save_feature),
(gst_registry_binary_load_feature),
(gst_registry_binary_read_cache):
* gst/gstregistryxml.c: (load_feature),
(gst_registry_xml_read_cache), (gst_registry_xml_save_feature):
* plugins/Makefile.am:
* tools/gst-indent:
* tools/gst-inspect.c: (print_index_info), (print_element_list),
(print_plugin_features), (print_element_features):
* tools/gst-xmlinspect.c: (print_event_masks),
(print_element_info):
* win32/common/gstconfig.h:
Remove GST_DISABLE_(ENUMTYPES|INDEX|URI) everywhere.
Disabling the indexers and URI handler code will only reduce the
required amount of memory by a very small amount but on the other hand
requires much more maintaince work. Apart from that many places of
code are broken when disabling them.
Disabling the enum types doesn't reduce the required amount of memory
by more than a few bytes and makes it hard to fix bugs like #539772,
i.e. use the enums as GObject properties.
Original commit message from CVS:
* gst/gstelement.c:
* gst/gstelement.h:
Deprecated gst_element_get_pad() as it can't be used sanely. It's not
clear of the reference to the resulting pad must be released later
or not, resulting in possible leaks. Fixes bug #533865.
Original commit message from CVS:
* gst/gstelement.c: (gst_element_base_class_init),
(gst_element_class_add_pad_template):
* gst/gstpadtemplate.c:
Make it possible (and recommended) to set element details and add
pad templates in the class_init functions by copying the details/pad
templates in GstElement's base_init.
Also make it possible to replace existing pad templates by adding
a new one with the same name. This was done in a hackish fashion
in same elements before already.
Don't reference pad templates that are added a second time. A
new pad template has a refcount of one and is not floating anymore
and to be owned by the element's class. Make this more explicit by
mentioning it in the docs of gst_element_class_add_pad_template().
These changes are backwards compatible. Fixes bug #491501.
* tests/check/gst/gstelement.c:
Add unit test for setting element details, adding pad templates and
replacing them in a subclass.
Original commit message from CVS:
* gst/gstelement.c: (gst_element_set_state_func):
Only change the state cookie if a different state was set on the
element. See #492729.
Original commit message from CVS:
* gst/gstbin.c: (bin_query_latency_fold), (gst_bin_query):
A latency query fails when one of the sinks fail.
* gst/gstelement.c: (gst_element_set_base_time):
Improve debugging.
Original commit message from CVS:
* docs/design/part-TODO.txt:
Add some more TODO items
* gst/gstbin.c: (find_message), (gst_bin_change_state_func):
Improve debugging.
* gst/gstcaps.c: (gst_caps_intersect):
Optimize trivial intersection case between identical caps pointers.
* gst/gstelement.c: (gst_element_continue_state),
(gst_element_set_state_func):
* gst/gstpad.c:
Fix spelling and grammar mistakes.
Original commit message from CVS:
* gst/gstelement.c: (gst_element_class_set_details_simple):
* gst/gstelement.h:
Make strings passed to gst_element_class_set_details_simple()
constant, as they should be (#462752).
Original commit message from CVS:
* docs/gst/gstreamer-sections.txt:
* gst/gstelement.c:
* gst/gstutils.c: (gst_type_register_static_full):
Beef up and include the docs for gst_type_register_static_full and
gst_element_class_set_details_simple and add the API keyword
in the ChangeLog.
Original commit message from CVS:
* gst/gstbin.c: (gst_bin_init), (gst_bin_add_func),
(gst_bin_remove_func), (gst_bin_get_state_func),
(gst_bin_element_set_state), (gst_bin_continue_func),
(bin_push_state_continue), (bin_handle_async_start),
(bin_handle_async_done), (gst_bin_handle_message_func):
* gst/gstbin.h:
Immediatly commit the toplevel bin state when receiving an async-done
message. This enables us to avoid spawning a thread to commit the state
in some common cases and it also avoids some races.
Avoid spawning a state thread when adding/removing async elements to a
toplevel bin. Instead we immediatly update the bin state.
Get rid of iterating all the children when getting the state in the bin
because it is now always up-to-date.
Fix bug where locked elements would always return _SUCCESS even it they
returned NO_PREROLL before being locked.
Fix the order of the state_change, async-start/done messages that was
sometimes incorrect.
Mark the state_dirty field as deprecated, we don't need it anymore as we
are always up-to-date.
* gst/gstelement.c: (gst_element_get_state_func),
(gst_element_continue_state):
Small debug inprovements.
Return the previous element state return when nothing is pending instead
of blindly returning SUCCESS.
* tests/check/generic/sinks.c: (GST_START_TEST), (pad_blocked_cb),
(gst_sinks_suite):
Add a whole bunch of new testcases.
Original commit message from CVS:
* gst/gstelement.c: (gst_element_get_state_func):
Don't output the same debug statement twice.
* libs/gst/base/gstadapter.c: (gst_adapter_try_to_merge_up),
(gst_adapter_peek), (gst_adapter_take_buffer):
Optimise the case where we have buffers at the head of the queue that
can be joined quickly (because they're contiguous sub-buffers) by
merging them together rather than copying data out into new memory.
* gst/parse/grammar.y:
* tests/check/pipelines/parse-launch.c:
Fix a leak in an error path for parse_launch, and add a check
for it to the testsuite.
Original commit message from CVS:
* gst/gstelement.c: (gst_element_get_request_pad),
(gst_element_class_get_request_pad_template):
Make gst_element_get_request_pad() create request pads only for
request pad templates and not for, say, sometimes pad templates.
Original commit message from CVS:
Patch by: Olivier Crete <tester at tester dot ca>
* gst/gstelement.c: (gst_element_sync_state_with_parent):
Look at the pending state too when syncing the element state to the
parent. Fixes#420133.
Original commit message from CVS:
Patch by: Evan Nemerson <evan at coeus dash group dot com>
* gst/gstelement.c: (gst_element_class_init):
Fix pad-added and pad-removed signal signatures so that the pad type is
stated as GST_TYPE_PAD instead of G_TYPE_OBJECT. Fixes#419851.
Original commit message from CVS:
* docs/gst/gstreamer-sections.txt:
Add new element field and method.
* gst/gstbin.c: (gst_bin_class_init), (gst_bin_init),
(bin_remove_messages), (gst_bin_add_func), (gst_bin_remove_func),
(gst_bin_recalc_state), (gst_bin_get_state_func),
(gst_bin_element_set_state), (gst_bin_change_state_func),
(gst_bin_continue_func), (bin_bus_handler),
(bin_push_state_continue), (bin_handle_async_start),
(bin_handle_async_done), (gst_bin_handle_message_func):
Make async state changes a bit smarter by using new ASYNC_START and
ASYNC_DONE messages. This reduces the number of times we run the state
recalculation thread.
Don't change state of element with a pending ASYNC_START message.
Deprecate STATE_DIRTY messages.
* gst/gstelement.c: (gst_element_init), (gst_element_send_event),
(gst_element_get_state_func), (gst_element_continue_state),
(gst_element_lost_state), (gst_element_set_state_func),
(gst_element_change_state):
* gst/gstelement.h:
Keep the state that was last set by the app in a new element field.
Don't allow state changes when handling an element event.
Post ASYNC_START and ASYNC_DONE messages.
Change lost_state so that we go to PAUSED and wait for the parent to set
us to PLAYING again (so latency calculation can be performed)
Export gst_element_change_state() method so that subclasses can use it.
API: gst_element_change_state()
API: GST_STATE_TARGET
* gst/gstpipeline.c: (gst_pipeline_class_init),
(reset_stream_time), (gst_pipeline_change_state),
(gst_pipeline_handle_message), (gst_pipeline_set_new_stream_time):
Using the new ASYNC_START message we can reset the base_time when
needed. This can then be used to implement base_time redistribution in
flushing seeks so that we can remove the explicit seek handling.
Perform latency query and configuration when going to PLAYING.
* libs/gst/base/gstbasesink.c: (gst_base_sink_commit_state),
(gst_base_sink_query), (gst_base_sink_change_state):
Post new ASYNC_START/ASYNC_DONE messages.
* tests/check/generic/sinks.c: (GST_START_TEST):
Fix test because the bin will not set the async element to PLAYING right
away.
* tests/check/gst/gstbin.c: (pop_async_done), (GST_START_TEST):
Make the message check a little stronger.
Handle ASYNC messages.
* tests/check/pipelines/cleanup.c: (GST_START_TEST):
* tests/check/pipelines/simple-launch-lines.c: (GST_START_TEST):
Expect ASYNC_DONE messages.
Original commit message from CVS:
* gst/gstelement.c: (gst_element_dispose):
There's no need to warn if VOID_PENDING is not NONE here, as
long as the state is NULL it's ok, and that's checked immediately
above.
Original commit message from CVS:
* gst/gstelement.c: (gst_element_message_full),
(gst_element_set_locked_state), (gst_element_get_state_func),
(gst_element_change_state):
Handle INFO messages from the GST_ELEMENT_INFO macro as well.
Documentation updates.
Small code cleanups.
* gst/gstmessage.c: (gst_message_new_info),
(gst_message_parse_info):
* gst/gstmessage.h:
API: gst_message_new_info()
API: gst_message_parse_info()
Add INFO message create and parse code.
Original commit message from CVS:
* gst/gstelement.c: (gst_element_add_pad):
* gst/gstghostpad.c: (gst_ghost_pad_new_full):
* gst/gstpad.c: (gst_pad_init):
Set pads to FLUSHING when they are created. Check, warn and fix when a
demuxer adds an inactive pad to itself when running. Fixes#339326.
