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97beb82173
Original commit message from CVS: Some prettification fixes to this interface... Make it look good, make it simple and make it more GObject'ific. This means that it now works largely almost the same as GObject (concerning arguments that you give to the functions, and layout of the virtual functions). I've also got an OSS implementation for this, but it needs one small change before I commit that. Expect that this weekend or so.
97 lines
3.5 KiB
C
97 lines
3.5 KiB
C
/* GStreamer PropertyProbe
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* Copyright (C) 2003 David A. Schleef <ds@schleef.org>
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*
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* property_probe.h: property_probe interface design
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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_PROPERTY_PROBE_H__
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#define __GST_PROPERTY_PROBE_H__
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#include <gst/gst.h>
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G_BEGIN_DECLS
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#define GST_TYPE_PROPERTY_PROBE \
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(gst_property_probe_get_type ())
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#define GST_PROPERTY_PROBE(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_PROPERTY_PROBE, GstPropertyProbe))
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#define GST_IS_PROPERTY_PROBE(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_PROPERTY_PROBE))
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#define GST_PROPERTY_PROBE_GET_IFACE(obj) \
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(G_TYPE_INSTANCE_GET_INTERFACE ((obj), GST_TYPE_PROPERTY_PROBE, GstPropertyProbeInterface))
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typedef struct _GstPropertyProbe GstPropertyProbe; /* dummy typedef */
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typedef struct _GstPropertyProbeInterface {
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GTypeInterface klass;
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/* signals */
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void (*probe_needed) (GstPropertyProbe *probe,
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const GParamSpec *pspec);
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/* virtual functions */
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const GList * (*get_properties) (GstPropertyProbe *probe);
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gboolean (*needs_probe) (GstPropertyProbe *probe,
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guint prop_id,
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const GParamSpec *pspec);
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void (*probe_property) (GstPropertyProbe *probe,
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guint prop_id,
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const GParamSpec *pspec);
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GValueArray * (*get_values) (GstPropertyProbe *probe,
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guint prop_id,
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const GParamSpec *pspec);
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GST_CLASS_PADDING
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} GstPropertyProbeInterface;
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GType gst_property_probe_get_type (void);
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/* virtual class function wrappers */
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/* returns list of GParamSpecs */
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const GList * gst_property_probe_get_properties (GstPropertyProbe *probe);
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const GParamSpec *gst_property_probe_get_property (GstPropertyProbe *probe,
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const gchar *name);
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/* probe one property */
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void gst_property_probe_probe_property (GstPropertyProbe *probe,
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const GParamSpec *pspec);
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void gst_property_probe_probe_property_name (GstPropertyProbe *probe,
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const gchar *name);
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/* do we need a probe? */
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gboolean gst_property_probe_needs_probe (GstPropertyProbe *probe,
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const GParamSpec *pspec);
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gboolean gst_property_probe_needs_probe_name (GstPropertyProbe *probe,
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const gchar *name);
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/* returns list of GValues */
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GValueArray * gst_property_probe_get_values (GstPropertyProbe *probe,
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const GParamSpec *pspec);
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GValueArray * gst_property_probe_get_values_name (GstPropertyProbe *probe,
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const gchar *name);
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/* sugar */
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GValueArray * gst_property_probe_probe_and_get_values (GstPropertyProbe *probe,
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const GParamSpec *pspec);
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GValueArray * gst_property_probe_probe_and_get_values_name (GstPropertyProbe *probe,
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const gchar *name);
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G_END_DECLS
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#endif /* __GST_PROPERTY_PROBE_H__ */
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