1 /*
2  * GStreamer
3  * Copyright 2005 Thomas Vander Stichele <thomas@apestaart.org>
4  * Copyright 2005 Ronald S. Bultje <rbultje@ronald.bitfreak.net>
5  * Copyright 2005 Sébastien Moutte <sebastien@moutte.net>
6  * Copyright 2006 Joni Valtanen <joni.valtanen@movial.fi>
7  *
8  * Permission is hereby granted, free of charge, to any person obtaining a
9  * copy of this software and associated documentation files (the "Software"),
10  * to deal in the Software without restriction, including without limitation
11  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12  * and/or sell copies of the Software, and to permit persons to whom the
13  * Software is furnished to do so, subject to the following conditions:
14  *
15  * The above copyright notice and this permission notice shall be included in
16  * all copies or substantial portions of the Software.
17  *
18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
21  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
23  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
24  * DEALINGS IN THE SOFTWARE.
25  *
26  * Alternatively, the contents of this file may be used under the
27  * GNU Lesser General Public License Version 2.1 (the "LGPL"), in
28  * which case the following provisions apply instead of the ones
29  * mentioned above:
30  *
31  * This library is free software; you can redistribute it and/or
32  * modify it under the terms of the GNU Library General Public
33  * License as published by the Free Software Foundation; either
34  * version 2 of the License, or (at your option) any later version.
35  *
36  * This library is distributed in the hope that it will be useful,
37  * but WITHOUT ANY WARRANTY; without even the implied warranty of
38  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
39  * Library General Public License for more details.
40  *
41  * You should have received a copy of the GNU Library General Public
42  * License along with this library; if not, write to the
43  * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
44  * Boston, MA 02110-1301, USA.
45  */
46 
47 #ifndef __GST_DIRECTSOUNDSRC_H__
48 #define __GST_DIRECTSOUNDSRC_H__
49 
50 #include <gst/gst.h>
51 #include <gst/audio/audio.h>
52 #include <gst/audio/gstaudiosrc.h>
53 #include <windows.h>
54 #include <dsound.h>
55 #include <mmsystem.h>
56 
57 /* add here some headers if needed */
58 
59 
60 G_BEGIN_DECLS
61 
62 /* #defines don't like whitespacey bits */
63 #define GST_TYPE_DIRECTSOUND_SRC (gst_directsound_src_get_type())
64 #define GST_DIRECTSOUND_SRC(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_DIRECTSOUND_SRC,GstDirectSoundSrc))
65 #define GST_DIRECTSOUND_SRC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_DIRECTSOUND_SRC,GstDirectSoundSrcClass))
66 #define GST_IS_DIRECTSOUND_SRC(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_DIRECTSOUND_SRC))
67 #define GST_IS_DIRECTSOUND_SRC_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_DIRECTSOUND_SRC))
68 
69 typedef struct _GstDirectSoundSrc      GstDirectSoundSrc;
70 typedef struct _GstDirectSoundSrcClass GstDirectSoundSrcClass;
71 
72 #define GST_DSOUND_LOCK(obj)	(g_mutex_lock (&obj->dsound_lock))
73 #define GST_DSOUND_UNLOCK(obj)	(g_mutex_unlock (&obj->dsound_lock))
74 
75 struct _GstDirectSoundSrc
76 {
77 
78   GstAudioSrc src;
79 
80   LPDIRECTSOUNDCAPTURE pDSC; /* DirectSoundCapture*/
81   LPDIRECTSOUNDCAPTUREBUFFER pDSBSecondary;  /*Secondaty capturebuffer*/
82   DWORD current_circular_offset;
83 
84   guint buffer_size;
85   guint bytes_per_sample;
86 
87   guint latency_time;
88 
89   HMIXER mixer;
90   DWORD mixerline_cchannels;
91   gint control_id_volume;
92   gint control_id_mute;
93   glong dw_vol_max;
94   glong dw_vol_min;
95 
96   glong volume;
97   gboolean mute;
98 
99   GUID *device_guid;
100 
101   char *device_name;
102   char *device_id;
103 
104   GMutex dsound_lock;
105 
106   GstClock *system_clock;
107   GstClockID *read_wait_clock_id;
108   gboolean reset_while_sleeping;
109 };
110 
111 struct _GstDirectSoundSrcClass
112 {
113   GstAudioSrcClass parent_class;
114 };
115 
116 GType gst_directsound_src_get_type (void);
117 
118 #define GST_DIRECTSOUND_SRC_CAPS "audio/x-raw, " \
119         "format = (string) { S16LE, S8 }, " \
120         "layout = (string) interleaved, " \
121         "rate = (int) [ 1, MAX ], " "channels = (int) [ 1, 2 ]"
122 
123 G_END_DECLS
124 
125 #endif /* __GST_DIRECTSOUNDSRC_H__ */
126