mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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a9d1a493a7
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
155 lines
5.8 KiB
C
155 lines
5.8 KiB
C
/* GStreamer
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*
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* Copyright (C) <2005> Stefan Kost <ensonic at users dot sf dot net>
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*
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* gst-controller.h: dynamic parameter control subsystem
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_CONTROLLER_H__
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#define __GST_CONTROLLER_H__
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#include <string.h>
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#include <glib.h>
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#include <glib-object.h>
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#include <glib/gprintf.h>
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#include <gst/gst.h>
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#include "gstcontrolsource.h"
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#include "gstinterpolationcontrolsource.h"
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G_BEGIN_DECLS
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/* type macros */
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#define GST_TYPE_CONTROLLER (gst_controller_get_type ())
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#define GST_CONTROLLER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_CONTROLLER, GstController))
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#define GST_CONTROLLER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_CONTROLLER, GstControllerClass))
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#define GST_IS_CONTROLLER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_CONTROLLER))
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#define GST_IS_CONTROLLER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_CONTROLLERE))
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#define GST_CONTROLLER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_CONTROLLER, GstControllerClass))
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typedef struct _GstController GstController;
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typedef struct _GstControllerClass GstControllerClass;
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typedef struct _GstControllerPrivate GstControllerPrivate;
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/**
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* GstController:
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*
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* The instance structure of GstController
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*/
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struct _GstController
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{
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GObject parent;
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GList *properties; /* List of GstControlledProperty */
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GMutex *lock; /* Secure property access, elements will access from threads */
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GObject *object; /* the object we control */
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/*< private >*/
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GstControllerPrivate *priv;
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gpointer _gst_reserved[GST_PADDING - 1];
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};
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struct _GstControllerClass
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{
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GObjectClass parent_class;
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/*< private >*/
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gpointer _gst_reserved[GST_PADDING];
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};
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GType gst_controller_get_type (void);
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/* GstController functions */
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GstController *gst_controller_new_valist (GObject * object, va_list var_args);
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GstController *gst_controller_new_list (GObject * object, GList *list);
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GstController *gst_controller_new (GObject * object, ...) G_GNUC_NULL_TERMINATED;
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gboolean gst_controller_remove_properties_valist (GstController * self,
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va_list var_args);
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gboolean gst_controller_remove_properties_list (GstController * self,
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GList *list);
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gboolean gst_controller_remove_properties (GstController * self, ...) G_GNUC_NULL_TERMINATED;
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void gst_controller_set_disabled (GstController *self, gboolean disabled);
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void gst_controller_set_property_disabled (GstController *self, const gchar * property_name, gboolean disabled);
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gboolean gst_controller_set_control_source (GstController *self, const gchar * property_name, GstControlSource *csource);
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GstControlSource * gst_controller_get_control_source (GstController *self, const gchar * property_name);
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GstClockTime gst_controller_suggest_next_sync (GstController *self);
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gboolean gst_controller_sync_values (GstController * self,
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GstClockTime timestamp);
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GValue *gst_controller_get (GstController * self, const gchar * property_name,
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GstClockTime timestamp);
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gboolean gst_controller_get_value_arrays (GstController * self,
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GstClockTime timestamp, GSList * value_arrays);
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gboolean gst_controller_get_value_array (GstController * self,
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GstClockTime timestamp, GstValueArray * value_array);
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/* GObject convenience functions */
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GstController *gst_object_control_properties (GObject * object, ...) G_GNUC_NULL_TERMINATED;
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gboolean gst_object_uncontrol_properties (GObject * object, ...) G_GNUC_NULL_TERMINATED;
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GstController *gst_object_get_controller (GObject * object);
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gboolean gst_object_set_controller (GObject * object, GstController * controller);
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GstClockTime gst_object_suggest_next_sync (GObject * object);
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gboolean gst_object_sync_values (GObject * object, GstClockTime timestamp);
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gboolean gst_object_set_control_source (GObject *object, const gchar * property_name, GstControlSource *csource);
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GstControlSource * gst_object_get_control_source (GObject *object, const gchar * property_name);
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gboolean gst_object_get_value_arrays (GObject * object,
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GstClockTime timestamp, GSList * value_arrays);
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gboolean gst_object_get_value_array (GObject * object,
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GstClockTime timestamp, GstValueArray * value_array);
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GstClockTime gst_object_get_control_rate (GObject * object);
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void gst_object_set_control_rate (GObject * object, GstClockTime control_rate);
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/* lib init/done */
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gboolean gst_controller_init (int * argc, char ***argv);
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/* FIXME: deprecated functions */
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#ifndef GST_DISABLE_DEPRECATED
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gboolean gst_controller_set (GstController * self, const gchar * property_name,
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GstClockTime timestamp, GValue * value);
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gboolean gst_controller_set_from_list (GstController * self,
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const gchar * property_name, GSList * timedvalues);
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gboolean gst_controller_unset (GstController * self, const gchar * property_name,
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GstClockTime timestamp);
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gboolean gst_controller_unset_all (GstController * self, const gchar * property_name);
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const GList *gst_controller_get_all (GstController * self,
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const gchar * property_name);
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gboolean gst_controller_set_interpolation_mode (GstController * self,
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const gchar * property_name, GstInterpolateMode mode);
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#endif /* GST_DISABLE_DEPRECATED */
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G_END_DECLS
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#endif /* __GST_CONTROLLER_H__ */
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