gstreamer/ext/pulse/pulseprobe.h
2011-12-21 11:59:46 +01:00

126 lines
6.1 KiB
C

/*-*- Mode: C; c-basic-offset: 2 -*-*/
/*
* GStreamer pulseaudio plugin
*
* Copyright (c) 2004-2008 Lennart Poettering
*
* gst-pulse is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of the
* License, or (at your option) any later version.
*
* gst-pulse is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with gst-pulse; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA.
*/
#ifndef __GST_PULSEPROBE_H__
#define __GST_PULSEPROBE_H__
#include <gst/gst.h>
G_BEGIN_DECLS
#include <pulse/pulseaudio.h>
#include <pulse/thread-mainloop.h>
typedef struct _GstPulseProbe GstPulseProbe;
struct _GstPulseProbe
{
GObject *object;
gchar *server;
GList *devices;
gboolean devices_valid:1;
gboolean operation_success:1;
gboolean enumerate_sinks:1;
gboolean enumerate_sources:1;
pa_threaded_mainloop *mainloop;
pa_context *context;
GList *properties;
guint prop_id;
};
GstPulseProbe *gst_pulseprobe_new (GObject *object, GObjectClass * klass,
guint prop_id, const gchar * server, gboolean sinks, gboolean sources);
void gst_pulseprobe_free (GstPulseProbe * probe);
const GList *gst_pulseprobe_get_properties (GstPulseProbe * probe);
gboolean gst_pulseprobe_needs_probe (GstPulseProbe * probe, guint prop_id,
const GParamSpec * pspec);
void gst_pulseprobe_probe_property (GstPulseProbe * probe, guint prop_id,
const GParamSpec * pspec);
GValueArray *gst_pulseprobe_get_values (GstPulseProbe * probe, guint prop_id,
const GParamSpec * pspec);
void gst_pulseprobe_set_server (GstPulseProbe * c, const gchar * server);
#define GST_IMPLEMENT_PULSEPROBE_METHODS(Type, interface_as_function) \
static const GList* \
interface_as_function ## _get_properties(GstPropertyProbe * probe) \
{ \
Type *this = (Type*) probe; \
\
g_return_val_if_fail(this != NULL, NULL); \
g_return_val_if_fail(this->probe != NULL, NULL); \
\
return gst_pulseprobe_get_properties(this->probe); \
} \
static gboolean \
interface_as_function ## _needs_probe(GstPropertyProbe *probe, guint prop_id, \
const GParamSpec *pspec) \
{ \
Type *this = (Type*) probe; \
\
g_return_val_if_fail(this != NULL, FALSE); \
g_return_val_if_fail(this->probe != NULL, FALSE); \
\
return gst_pulseprobe_needs_probe(this->probe, prop_id, pspec); \
} \
static void \
interface_as_function ## _probe_property(GstPropertyProbe *probe, \
guint prop_id, const GParamSpec *pspec) \
{ \
Type *this = (Type*) probe; \
\
g_return_if_fail(this != NULL); \
g_return_if_fail(this->probe != NULL); \
\
gst_pulseprobe_probe_property(this->probe, prop_id, pspec); \
} \
static GValueArray* \
interface_as_function ## _get_values(GstPropertyProbe *probe, guint prop_id, \
const GParamSpec *pspec) \
{ \
Type *this = (Type*) probe; \
\
g_return_val_if_fail(this != NULL, NULL); \
g_return_val_if_fail(this->probe != NULL, NULL); \
\
return gst_pulseprobe_get_values(this->probe, prop_id, pspec); \
} \
static void \
interface_as_function ## _property_probe_interface_init(GstPropertyProbeInterface *iface)\
{ \
iface->get_properties = interface_as_function ## _get_properties; \
iface->needs_probe = interface_as_function ## _needs_probe; \
iface->probe_property = interface_as_function ## _probe_property; \
iface->get_values = interface_as_function ## _get_values; \
}
G_END_DECLS
#endif