1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
<html>
<head>
<title>Camstream: CamStream API documentation</title>
<link rel="stylesheet" href="../../tech.css" type="text/css">
</head>
<body>
<!-- Generated by Doxygen 1.3.7 -->
<div class="qindex"><a class="qindex" href="index.html">Main Page</a> | <a class="qindex" href="hierarchy.html">Class Hierarchy</a> | <a class="qindex" href="classes.html">Alphabetical List</a> | <a class="qindex" href="annotated.html">Class List</a> | <a class="qindex" href="files.html">File List</a> | <a class="qindex" href="functions.html">Class Members</a> | <a class="qindex" href="globals.html">File Members</a></div>
<h1>AudioDeviceLinux.h</h1><a href="_audio_device_linux_8h.html">Go to the documentation of this file.</a><pre class="fragment"><div>00001 <span class="comment">/* audiodevs: Abstraction layer for audio hardware & samples</span>
00002 <span class="comment"> Copyright (C) 2003-2004 Nemosoft Unv.</span>
00003 <span class="comment"></span>
00004 <span class="comment"> This program is free software; you can redistribute it and/or modify</span>
00005 <span class="comment"> it under the terms of the GNU General Public License as published by</span>
00006 <span class="comment"> the Free Software Foundation; either version 2 of the License, or</span>
00007 <span class="comment"> (at your option) any later version.</span>
00008 <span class="comment"></span>
00009 <span class="comment"> This program is distributed in the hope that it will be useful,</span>
00010 <span class="comment"> but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
00011 <span class="comment"> MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
00012 <span class="comment"> GNU General Public License for more details.</span>
00013 <span class="comment"></span>
00014 <span class="comment"> You should have received a copy of the GNU General Public License</span>
00015 <span class="comment"> along with this program; if not, write to the Free Software</span>
00016 <span class="comment"> Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</span>
00017 <span class="comment"></span>
00018 <span class="comment"> For questions, remarks, patches, etc. for this program, the author can be</span>
00019 <span class="comment"> reached at camstream@smcc.demon.nl.</span>
00020 <span class="comment">*/</span>
00021 <span class="preprocessor">#ifndef AUDIODEVICELINUX_HPP</span>
00022 <span class="preprocessor"></span><span class="preprocessor">#define AUDIODEVICELINUX_HPP</span>
00023 <span class="preprocessor"></span>
00024 <span class="preprocessor">#ifdef HAVE_CONFIG_H</span>
00025 <span class="preprocessor"></span><span class="preprocessor">#include "<a class="code" href="config_8h.html">config.h</a>"</span>
00026 <span class="preprocessor">#endif</span>
00027 <span class="preprocessor"></span>
<a name="l00028"></a><a class="code" href="_audio_device_linux_8h.html#a0">00028</a> <span class="preprocessor">#define ALSA_PCM_NEW_HW_PARAMS_API</span>
<a name="l00029"></a><a class="code" href="_audio_device_linux_8h.html#a1">00029</a> <span class="preprocessor"></span><span class="preprocessor">#define ALSA_PCM_NEW_SW_PARAMS_API</span>
00030 <span class="preprocessor"></span><span class="preprocessor">#include <alsa/asoundlib.h></span>
00031
00032 <span class="preprocessor">#include <qstring.h></span>
00033
00034 <span class="preprocessor">#include "<a class="code" href="_audio_device_8h.html">AudioDevice.h</a>"</span>
00035
00036 <span class="keyword">class </span><a class="code" href="class_c_audio_control_linux.html">CAudioControlLinux</a>;
00037
<a name="l00038"></a><a class="code" href="class_c_audio_device_linux.html">00038</a> <span class="keyword">class </span><a class="code" href="class_c_audio_device_linux.html">CAudioDeviceLinux</a>: <span class="keyword">public</span> <a class="code" href="class_c_audio_device.html">CAudioDevice</a>
00039 {
00040 Q_OBJECT
00041 <span class="keyword">private</span>:
00042 <span class="keywordtype">int</span> m_CardNumber;
00043 <span class="keywordtype">bool</span> m_StopCapture, m_StopPlayback;
00044 <span class="comment">//QWaitCondition m_CaptureFinished, m_PlaybackFinished;</span>
00045 QMutex m_ResetBusy;
00046
00047 snd_pcm_t *m_pSndPcm;
00048 snd_pcm_hw_params_t *m_pHWParams;
00049 snd_pcm_sw_params_t *m_pSWParams;
00050 snd_pcm_channel_area_t m_ChannelArea[32];
00051 snd_pcm_format_t m_Format;
00052 snd_pcm_uframes_t m_SamplesWritten, m_SamplesRead;
00053 snd_pcm_uframes_t m_MinBufferSize, m_MaxBufferSize, m_CurrentBufferSize;
00054
00055 <a class="code" href="class_c_audio_control_linux.html">CAudioControlLinux</a> *m_pControl;
00056
00057 <span class="keywordtype">int</span> GetHWParameters();
00058 <span class="keywordtype">int</span> SetHWParameters();
00059 <span class="keywordtype">void</span> DumpHWParameters();
00060 <span class="keywordtype">int</span> SetSWParamaters();
00061
00062 <span class="keyword">private</span> slots:
00063 <span class="keywordtype">void</span> ResetStream();
00064
00065 <span class="keyword">protected</span>:
00066 <span class="keywordtype">void</span> <a class="code" href="class_c_audio_device_linux.html#b0">run</a>();
00067
00068 <span class="keyword">virtual</span> <span class="keywordtype">bool</span> <a class="code" href="class_c_audio_device_linux.html#b1">Init</a>();
00069 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_c_audio_device_linux.html#b2">Exit</a>();
00070
00071 <span class="keyword">virtual</span> <span class="keywordtype">int</span> <a class="code" href="class_c_audio_device_linux.html#b3">StartCapture</a>();
00072 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_c_audio_device_linux.html#b4">StopCapture</a>();
00073 <span class="keyword">virtual</span> <span class="keywordtype">int</span> <a class="code" href="class_c_audio_device_linux.html#b5">StartPlayback</a>();
00074 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_c_audio_device_linux.html#b6">StopPlayback</a>();
00075
00076 <span class="keyword">public</span>:
00077 <a class="code" href="class_c_audio_device_linux.html">CAudioDeviceLinux</a>(<span class="keywordtype">int</span> card_number);
00078 <span class="keyword">virtual</span> <a class="code" href="class_c_audio_device_linux.html#a1">~CAudioDeviceLinux</a>();
00079
00080 <span class="keyword">virtual</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <a class="code" href="class_c_audio_device_linux.html#a2">GetPlaybackPointer</a>() <span class="keyword">const</span>;
00081
00082 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_c_audio_device_linux.html#a3">SetBufferLength</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> len, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> chunk_length = 0);
00083 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_c_audio_device_linux.html#a4">SetBufferTime</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> ms, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> chunk_length = 0);
00084 <span class="comment">//virtual int WriteDirectly(const void *, unsigned int len) = 0;</span>
00085
00086 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_c_audio_device_linux.html#a5">GetMixerSettings</a>(QDomNode &) <span class="keyword">const</span>;
00087 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_c_audio_device_linux.html#a6">SetMixerSettings</a>(<span class="keyword">const</span> QDomNode &) <span class="keyword">const</span>;
00088
00089 <span class="keyword">public</span> slots:
00091 <span class="keywordtype">void</span> <a class="code" href="class_c_audio_device_linux.html#i0">ShowMixerControls</a>();
00092 };
00093
00094 <span class="preprocessor">#endif</span>
</div></pre><hr size="1"><address style="align: right;"><small>Generated on Wed Dec 13 23:38:46 2006 for CamStream by
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border=0 ></a> 1.3.7 </small></address>
</body>
</html>
|
