It was zero and in some condition it means that the control binding
values where ignored (as shown in the test). Setting it to MAXDOUBLE
so that the first time we sync the values from a a timestamp in the
right range the proper value is computed.
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/564>
Allows proxying the control interface from one property on one GstObject
to another property (of the same type) in another GstObject.
E.g. in a parent-child relationship, one may need to
gst_object_sync_values() on the child and have a binding (set elsewhere)
on the parent update the value.
Note: that this doesn't solve GObject property forwarding and must be
taken care of by the implementation manually or using GBinding.
https://bugzilla.gnome.org/show_bug.cgi?id=774657
We previously forgot to initilize the amplitde property to the default and thus it was 0.0. Therefore a default lfo controlsource returned a series of 0.0 and the test was asserting on that.
Rename the _get_value_array() functions to _get_g_value_array() and reintroduce
the former to operate on plain unboxed c datatypes (like in 0.10). The _g_value
variants are for bindings while the _value ones are more suited to processing
in elements.
The controller object was once copied from buzztards unit tests. Change
TestMonoSource to TestObj as it is not a full fledged element. Split the tests
into a core and library test suite.
Add a GstControlBinding class. This is a preparation for making the
controlsources generate double valued control curves and do the gparamspec
mapping in the control binding. Now the API in GstObject is again mostly
for convenience.
Move most of the code to a GstTimedValueControlSource. Split out the trigger
'interpolation mode' to a new control source class. Move tests and examples to
new api. Update docs.
Fixes#610338
Make that implizit with attaching/detaching controlsources. This is a lot easier
and has less invalid state (controlled property without control source).
This make the controller even more lightweight (no extra object, no extra lock,
less indirections). For object that don't use the controller the only 'overhead'
is a 3 unused fields in the gst_object structure.
This changes some APIs in compatible ways:
- Some functions now take "const char *" arguments, not "char *"
- Some structs now have "conts char *" members, not "char *"
The changes may cause warnings when compiling with the right warning
flags. You've been warned.
Also adds -Wwrite-strings as a warning flag in configure.ac.
https://bugzilla.gnome.org/show_bug.cgi?id=611692
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).
Original commit message from CVS:
* libs/gst/controller/gstinterpolation.c:
* libs/gst/controller/gstinterpolationcontrolsource.c:
* tests/check/libs/controller.c:
Rewrite handling of default values. Fix overflow with unsigned types
in linear interpolation. Remove now obsolete _first_value() function.
Add more tests. Fixes#538201.
Original commit message from CVS:
* tests/check/libs/controller.c:
* tests/check/libs/typefindhelper.c:
* tests/check/pipelines/parse-launch.c:
Don't use GST_PLUGIN_DEFINE_STATIC, it is not portable and is
going to be deprecated (see #498924).
Original commit message from CVS:
* tests/check/libs/controller.c: (GST_START_TEST):
Use fail_unless_equals_int(a, b) instead of
fail_unless_equals (a == b) to get better output on failures.
Original commit message from CVS:
reviewed by: Stefan Kost <ensonic@users.sf.net>
* libs/gst/controller/Makefile.am:
* libs/gst/controller/gstlfocontrolsource.c: (_calculate_pos),
(gst_lfo_waveform_get_type), (gst_lfo_control_source_reset),
(gst_lfo_control_source_new),
(gst_lfo_control_source_set_waveform),
(gst_lfo_control_source_bind), (gst_lfo_control_source_init),
(gst_lfo_control_source_finalize),
(gst_lfo_control_source_dispose),
(gst_lfo_control_source_set_property),
(gst_lfo_control_source_get_property),
(gst_lfo_control_source_class_init):
* libs/gst/controller/gstlfocontrolsource.h:
* libs/gst/controller/gstlfocontrolsourceprivate.h:
API: Add GstLFOControlSource, a control source that gives values
for specific timestamps based on several periodic waveforms.
Fixes#459717.
* tests/check/libs/controller.c: (GST_START_TEST),
(gst_controller_suite):
* docs/libs/gstreamer-libs-docs.sgml:
* docs/libs/gstreamer-libs-sections.txt:
* docs/libs/gstreamer-libs.types:
Add documentation and unit tests for GstLFOControlSource.
Original commit message from CVS:
Reviewed by: Stefan Kost <ensonic@users.sf.net>
* libs/gst/controller/Makefile.am:
* libs/gst/controller/gstcontroller.c:
(gst_controlled_property_add_interpolation_control_source),
(gst_controlled_property_new), (gst_controlled_property_free),
(gst_controller_find_controlled_property),
(gst_controller_new_valist), (gst_controller_new_list),
(gst_controller_new), (gst_controller_remove_properties_valist),
(gst_controller_remove_properties_list),
(gst_controller_remove_properties),
(gst_controller_set_property_disabled),
(gst_controller_set_disabled), (gst_controller_set_control_source),
(gst_controller_get_control_source), (gst_controller_get),
(gst_controller_sync_values), (gst_controller_get_value_array),
(_gst_controller_dispose), (gst_controller_get_type),
(gst_controlled_property_set_interpolation_mode),
(gst_controller_set), (gst_controller_set_from_list),
(gst_controller_unset), (gst_controller_unset_all),
(gst_controller_get_all), (gst_controller_set_interpolation_mode):
* libs/gst/controller/gstcontroller.h:
* libs/gst/controller/gstcontrollerprivate.h:
* libs/gst/controller/gstcontrolsource.c:
(gst_control_source_class_init), (gst_control_source_init),
(gst_control_source_get_value),
(gst_control_source_get_value_array), (gst_control_source_bind):
* libs/gst/controller/gstcontrolsource.h:
* libs/gst/controller/gsthelper.c: (gst_object_set_control_source),
(gst_object_get_control_source):
* libs/gst/controller/gstinterpolation.c:
(gst_interpolation_control_source_find_control_point_node),
(gst_interpolation_control_source_get_first_value),
(_interpolate_none_get), (interpolate_none_get),
(interpolate_none_get_boolean_value_array),
(interpolate_none_get_enum_value_array),
(interpolate_none_get_string_value_array),
(_interpolate_trigger_get), (interpolate_trigger_get),
(interpolate_trigger_get_boolean_value_array),
(interpolate_trigger_get_enum_value_array),
(interpolate_trigger_get_string_value_array):
* libs/gst/controller/gstinterpolationcontrolsource.c:
(gst_control_point_free), (gst_interpolation_control_source_reset),
(gst_interpolation_control_source_new),
(gst_interpolation_control_source_set_interpolation_mode),
(gst_interpolation_control_source_bind),
(gst_control_point_compare), (gst_control_point_find),
(gst_interpolation_control_source_set_internal),
(gst_interpolation_control_source_set),
(gst_interpolation_control_source_set_from_list),
(gst_interpolation_control_source_unset),
(gst_interpolation_control_source_unset_all),
(gst_interpolation_control_source_get_all),
(gst_interpolation_control_source_get_count),
(gst_interpolation_control_source_init),
(gst_interpolation_control_source_finalize),
(gst_interpolation_control_source_dispose),
(gst_interpolation_control_source_class_init):
* libs/gst/controller/gstinterpolationcontrolsource.h:
* libs/gst/controller/gstinterpolationcontrolsourceprivate.h:
API: Refactor GstController into the core controller which can take
a GstControlSource for providing actual values for timestamps.
Implement a interpolation control source and use this for backward
compatibility, deprecate a bunch of functions that are now handled
by GstControlSource or GstInterpolationControlSource.
Make it possible to disable the controller completely or only for
specific properties. Fixes#450711.
* docs/libs/gstreamer-libs-docs.sgml:
* docs/libs/gstreamer-libs-sections.txt:
* docs/libs/gstreamer-libs.types:
Add new functions and classes to the docs.
* tests/check/libs/controller.c: (GST_START_TEST),
(gst_controller_suite):
* tests/examples/controller/audio-example.c: (main):
Port unit test and example to the new API and add some new
unit tests.
Original commit message from CVS:
* docs/libs/gstreamer-libs-sections.txt:
* libs/gst/check/gstcheck.h:
API: add fail_unless_equals_float() and assert_equals_float().
Add documentation for some of the macros.
* tests/check/libs/controller.c: (GST_START_TEST):
Use newly-added asserts.
Original commit message from CVS:
* libs/gst/controller/gstcontroller.c:
(gst_controlled_property_new):
* libs/gst/controller/gstcontrollerprivate.h:
* libs/gst/controller/gstinterpolation.c:
(gst_controlled_property_find_control_point_node),
(interpolate_none_get), (interpolate_none_get_enum_value_array),
(interpolate_none_get_string_value_array),
(interpolate_trigger_get),
(interpolate_trigger_get_enum_value_array),
(interpolate_trigger_get_string_value_array):
Protect against values larger or smaller than the minimum or maximum
allowed value for the property when using values that can be compared.
Optimize trigger interpolator a bit by taking the last requested value
into account instead of always looping through the complete list.
Fix coding style a bit, everywhere else we use "return foo" instead
of "return (foo)".
* tests/check/libs/controller.c: (GST_START_TEST),
(gst_controller_suite):
Add unit test for the protection against too large or too small
values.
Original commit message from CVS:
* libs/gst/controller/gstcontroller.c:
(gst_controlled_property_set_interpolation_mode),
(gst_controlled_property_prepend_default),
(gst_controlled_property_new), (gst_controller_set_unlocked),
(gst_controller_set), (gst_controller_set_from_list),
(gst_controller_unset), (gst_controller_unset_all):
* libs/gst/controller/gstcontrollerprivate.h:
* libs/gst/controller/gstinterpolation.c:
Factor out the 'set' logic into gst_controller_set_unlocked for the
gst_controller_set and gst_controller_set_from_list functions.
To make life of the interpolators easier always add a control point
at timestamp zero with the default value.
In the linear interpolator make things more obvious by better variable
naming (slope).
Implement cubic interpolation mode (by using a natural cubic spline)
and map the quadratic interpolation mode to this too (as quadratic
doesn't make much sense, see discussion on the list).
* tests/check/libs/controller.c: (GST_START_TEST),
(gst_controller_suite):
Add unit test for the cubic interpolation mode and check everywhere
if the interpolation mode could be set as expected.
Original commit message from CVS:
* libs/gst/controller/gstcontroller.c:
(gst_controller_get_value_array):
* libs/gst/controller/gstcontroller.h:
Clarify the docs of gst_controller_get_value_array(): The array where
the values should be written to must be allocated as there seems to be
no way to get the size of a random GType. This doesn't change any
behaviour. Also fix some typos all over the place and remove an unused,
commented function that is not necessary as g_object_set() could be
used instead.
* tests/check/libs/controller.c: (GST_START_TEST),
(gst_controller_suite):
Add unit test for gst_controller_get_value_array().
Original commit message from CVS:
reviewed by: Stefan Kost <ensonic@users.sf.net>
* libs/gst/controller/gstcontroller.c: (gst_control_point_compare),
(gst_control_point_find), (gst_controlled_property_new),
(gst_control_point_free), (gst_controlled_property_free),
(gst_controller_set), (gst_controller_set_from_list),
(gst_controller_unset), (gst_controller_unset_all),
(gst_controller_sync_values):
* libs/gst/controller/gstcontroller.h:
* libs/gst/controller/gstcontrollerprivate.h:
* libs/gst/controller/gstinterpolation.c:
(gst_controlled_property_find_control_point_node),
(interpolate_none_get), (interpolate_trigger_get):
Add a new private GstControlPoint struct which "inherits" from
GstTimedValue to allow different interpolators to store internal
values next to each control point. From the outside everything is
still a GstControlPoint so we don't loose binary compatibility.
Also fixup all the GValue handling to not leak GValues or list nodes.
* tests/check/libs/controller.c: (GST_START_TEST):
Free the list nodes and GValues in the controller_misc test.
Original commit message from CVS:
* libs/gst/controller/gstcontroller.c:
(gst_controlled_property_set_interpolation_mode):
* libs/gst/controller/gstinterpolation.c:
Don't crash if someone tries to set an interpolation mode that
is invalid or that isn't supported yet. Fixes#422295.
* tests/check/libs/controller.c: (GST_START_TEST),
(gst_controller_suite):
Add a test case for the above.
Original commit message from CVS:
* libs/gst/controller/gstcontroller.c: (gst_controller_new_list):
Fix refcounting here too, just like we did for _new_valist() a few
days ago (#357180) (thanks to René Stadler). Also remove all those
'Since: 0.9' from the gtk-doc blobs.
* tests/check/libs/controller.c: (controller_refcount_new_list),
(gst_controller_suite):
Unit test for the above.
Original commit message from CVS:
* tests/check/libs/controller.c: (GST_START_TEST),
(gst_controller_suite):
Add test for the previous fix; add some more tests
for correct refcounting behaviour; fix a few leaks
in test cases; call gst_controller_init() at start
of all tests.
