2 * GStreamer - SunAudio mixer
3 * Copyright (C) 2005,2006 Sun Microsystems, Inc.,
4 * Brian Cameron <brian.cameron@sun.com>
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Library General Public License for more details.
16 * You should have received a copy of the GNU Library General Public
17 * License along with this library; if not, write to the
18 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 * Boston, MA 02111-1307, USA.
23 * SECTION:element-sunaudiomixer
27 * sunaudiomixer is an mixer that controls the sound input and output
28 * levels with the Sun Audio interface available in Solaris.
37 #include "gstsunaudiomixer.h"
39 static const GstElementDetails gst_sunaudiomixer_details =
40 GST_ELEMENT_DETAILS ("Sun Audio Mixer",
42 "Control sound input and output levels with Sun Audio",
43 "Brian Cameron <brian.cameron@sun.com>");
45 GST_BOILERPLATE_WITH_INTERFACE (GstSunAudioMixer, gst_sunaudiomixer,
46 GstElement, GST_TYPE_ELEMENT, GstMixer, GST_TYPE_MIXER, gst_sunaudiomixer);
48 GST_IMPLEMENT_SUNAUDIO_MIXER_CTRL_METHODS (GstSunAudioMixer, gst_sunaudiomixer);
50 static GstStateChangeReturn gst_sunaudiomixer_change_state (GstElement *
51 element, GstStateChange transition);
54 gst_sunaudiomixer_base_init (gpointer klass)
56 gst_element_class_set_details (GST_ELEMENT_CLASS (klass),
57 &gst_sunaudiomixer_details);
61 gst_sunaudiomixer_class_init (GstSunAudioMixerClass * klass)
63 GstElementClass *element_class;
65 element_class = (GstElementClass *) klass;
67 element_class->change_state = gst_sunaudiomixer_change_state;
71 gst_sunaudiomixer_init (GstSunAudioMixer * this,
72 GstSunAudioMixerClass * g_class)
77 static GstStateChangeReturn
78 gst_sunaudiomixer_change_state (GstElement * element, GstStateChange transition)
80 GstSunAudioMixer *this = GST_SUNAUDIO_MIXER (element);
83 case GST_STATE_CHANGE_NULL_TO_READY:
87 audiodev = g_getenv ("AUDIODEV");
88 if (audiodev == NULL) {
89 this->mixer = gst_sunaudiomixer_ctrl_new ("/dev/audioctl");
91 gchar *device = g_strdup_printf ("%sctl", audiodev);
93 this->mixer = gst_sunaudiomixer_ctrl_new (device);
98 case GST_STATE_CHANGE_READY_TO_NULL:
100 gst_sunaudiomixer_ctrl_free (this->mixer);
108 if (GST_ELEMENT_CLASS (parent_class)->change_state)
109 return GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
111 return GST_STATE_CHANGE_SUCCESS;