mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-02 14:36:41 +00:00
286cd75855
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.
103 lines
3 KiB
C
103 lines
3 KiB
C
/*
|
|
* audio-example.c
|
|
*
|
|
* Builds a pipeline with audiotestsource->alsasink and sweeps frequency and
|
|
* volume.
|
|
*
|
|
* Needs gst-plugin-base installed.
|
|
*/
|
|
|
|
#include <gst/gst.h>
|
|
#include <gst/controller/gstcontroller.h>
|
|
#include <gst/controller/gstinterpolationcontrolsource.h>
|
|
|
|
gint
|
|
main (gint argc, gchar ** argv)
|
|
{
|
|
gint res = 1;
|
|
GstElement *src, *sink;
|
|
GstElement *bin;
|
|
GstController *ctrl;
|
|
GstInterpolationControlSource *csource1, *csource2;
|
|
GstClock *clock;
|
|
GstClockID clock_id;
|
|
GstClockReturn wait_ret;
|
|
GValue vol = { 0, };
|
|
|
|
gst_init (&argc, &argv);
|
|
gst_controller_init (&argc, &argv);
|
|
|
|
/* build pipeline */
|
|
bin = gst_pipeline_new ("pipeline");
|
|
clock = gst_pipeline_get_clock (GST_PIPELINE (bin));
|
|
src = gst_element_factory_make ("audiotestsrc", "gen_audio");
|
|
sink = gst_element_factory_make ("alsasink", "play_audio");
|
|
gst_bin_add_many (GST_BIN (bin), src, sink, NULL);
|
|
if (!gst_element_link (src, sink)) {
|
|
GST_WARNING ("can't link elements");
|
|
goto Error;
|
|
}
|
|
|
|
/* square wave
|
|
g_object_set (G_OBJECT(src), "wave", 1, NULL);
|
|
*/
|
|
|
|
/* add a controller to the source */
|
|
if (!(ctrl = gst_controller_new (G_OBJECT (src), "freq", "volume", NULL))) {
|
|
GST_WARNING ("can't control source element");
|
|
goto Error;
|
|
}
|
|
|
|
csource1 = gst_interpolation_control_source_new ();
|
|
csource2 = gst_interpolation_control_source_new ();
|
|
|
|
gst_controller_set_control_source (ctrl, "volume",
|
|
GST_CONTROL_SOURCE (csource1));
|
|
gst_controller_set_control_source (ctrl, "freq",
|
|
GST_CONTROL_SOURCE (csource2));
|
|
|
|
/* Set interpolation mode */
|
|
|
|
gst_interpolation_control_source_set_interpolation_mode (csource1,
|
|
GST_INTERPOLATE_LINEAR);
|
|
gst_interpolation_control_source_set_interpolation_mode (csource2,
|
|
GST_INTERPOLATE_LINEAR);
|
|
|
|
/* set control values */
|
|
g_value_init (&vol, G_TYPE_DOUBLE);
|
|
g_value_set_double (&vol, 0.0);
|
|
gst_interpolation_control_source_set (csource1, 0 * GST_SECOND, &vol);
|
|
g_value_set_double (&vol, 1.0);
|
|
gst_interpolation_control_source_set (csource1, 5 * GST_SECOND, &vol);
|
|
|
|
g_object_unref (csource1);
|
|
|
|
g_value_set_double (&vol, 220.0);
|
|
gst_interpolation_control_source_set (csource2, 0 * GST_SECOND, &vol);
|
|
g_value_set_double (&vol, 3520.0);
|
|
gst_interpolation_control_source_set (csource2, 3 * GST_SECOND, &vol);
|
|
g_value_set_double (&vol, 440.0);
|
|
gst_interpolation_control_source_set (csource2, 6 * GST_SECOND, &vol);
|
|
|
|
g_object_unref (csource2);
|
|
|
|
clock_id =
|
|
gst_clock_new_single_shot_id (clock,
|
|
gst_clock_get_time (clock) + (7 * GST_SECOND));
|
|
|
|
/* run for 7 seconds */
|
|
if (gst_element_set_state (bin, GST_STATE_PLAYING)) {
|
|
if ((wait_ret = gst_clock_id_wait (clock_id, NULL)) != GST_CLOCK_OK) {
|
|
GST_WARNING ("clock_id_wait returned: %d", wait_ret);
|
|
}
|
|
gst_element_set_state (bin, GST_STATE_NULL);
|
|
}
|
|
|
|
/* cleanup */
|
|
g_object_unref (G_OBJECT (ctrl));
|
|
gst_object_unref (G_OBJECT (clock));
|
|
gst_object_unref (G_OBJECT (bin));
|
|
res = 0;
|
|
Error:
|
|
return (res);
|
|
}
|