summaryrefslogtreecommitdiffstats
path: root/kradio3/plugins/alsa-sound/alsa-sound.h
blob: 4a7983207fcb7265e5ac2187d092934515ee042c (plain)
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
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
/***************************************************************************
                          alsa-sound.h  -  description
                             -------------------
    begin                : Thu May 26 2005
    copyright            : (C) 2005 by Martin Witte
    email                : [email protected]
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/

#ifndef _KRADIO_ALSA_SOUND_H
#define _KRADIO_ALSA_SOUND_H

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include "../../src/include/ringbuffer.h"
#include "../../src/include/plugins.h"
#include "../../src/include/soundstreamclient_interfaces.h"

#include "alsa-config-mixer-setting.h"

#include <tqobject.h>
#include <tqtimer.h>
#include <alsa/asoundlib.h>

enum DUPLEX_MODE { DUPLEX_UNKNOWN, DUPLEX_FULL, DUPLEX_HALF };


struct SoundStreamConfig
{
    SoundStreamConfig()
        : m_ActiveMode(false),
          m_Channel(TQString()),
          m_Volume(-1),
          m_Muted(false)
       {}

    SoundStreamConfig(const TQString &_channel, bool active_mode = true)
        : m_ActiveMode(active_mode),
          m_Channel(_channel),
          m_Volume(-1),
          m_Muted(false)
       {}

    SoundStreamConfig(const SoundStreamConfig &c)
        : m_ActiveMode(c.m_ActiveMode),
          m_Channel(c.m_Channel),
          m_Volume(c.m_Volume),
          m_Muted(c.m_Muted)
       {}

    bool           m_ActiveMode;
    TQString        m_Channel;
    float          m_Volume;
    bool           m_Muted;
};


class AlsaCaptureThread;

class AlsaMixerElement
{
public:
    AlsaMixerElement()                           { snd_mixer_selem_id_malloc(&m_ID); }
    AlsaMixerElement(snd_mixer_selem_id_t *id)   { snd_mixer_selem_id_malloc(&m_ID); snd_mixer_selem_id_copy(m_ID, id)    ; }
    AlsaMixerElement(const  AlsaMixerElement &x) { snd_mixer_selem_id_malloc(&m_ID); snd_mixer_selem_id_copy(m_ID, x.m_ID); }
    ~AlsaMixerElement() { snd_mixer_selem_id_free (m_ID); }

     operator snd_mixer_selem_id_t *&() { return m_ID; }

     AlsaMixerElement &operator = (const AlsaMixerElement &x) { snd_mixer_selem_id_copy(m_ID, x.m_ID); return *this; }

protected:
    snd_mixer_selem_id_t *m_ID;
};


class AlsaSoundDevice : public TQObject,
                        public PluginBase,
                        public ISoundStreamClient
{
Q_OBJECT
  

public:
    AlsaSoundDevice (const TQString &name);
    virtual ~AlsaSoundDevice ();

    virtual bool   connectI(Interface *i);
    virtual bool   disconnectI(Interface *i);

    // PluginBase

public:
    virtual void   saveState (TDEConfig *) const;
    virtual void   restoreState (TDEConfig *);

    virtual TQString pluginClassName() const { return "AlsaSoundDevice"; }

    virtual const TQString &name() const { return PluginBase::name(); }
    virtual       TQString &name()       { return PluginBase::name(); }

    virtual ConfigPageInfo  createConfigurationPage();
    virtual AboutPageInfo   createAboutPage();

    // ISoundStreamClient: direct device access

RECEIVERS:
    void noticeConnectedI (ISoundStreamServer *s, bool pointer_valid);
    bool preparePlayback(SoundStreamID id, const TQString &channel, bool active_mode, bool start_immediately);
    bool prepareCapture(SoundStreamID id, const TQString &channel);
    bool releasePlayback(SoundStreamID id);
    bool releaseCapture(SoundStreamID id);

ANSWERS:
    bool supportsPlayback() const;
    bool supportsCapture()  const;

    TQString getSoundStreamClientDescription() const;

    // ISoundStreamClient: mixer access

public:
    static
    void getPlaybackMixerChannels(int card, snd_mixer_t *mixer_handle,
                                  TQStringList &retval, TQMap<TQString, AlsaMixerElement> &int2id);
    static
    void getCaptureMixerChannels (int card, snd_mixer_t *mixer_handle,
                                  TQStringList &vol_list, TQMap<TQString, AlsaMixerElement> &vol_ch2id,
                                  TQStringList &sw_list,  TQMap<TQString, AlsaMixerElement> &sw_ch2id,
                                  TQStringList *all_list = NULL);

ANSWERS:
    const TQStringList &getPlaybackChannels() const;
    const TQStringList &getCaptureChannels() const;

RECEIVERS:
    bool setPlaybackVolume(SoundStreamID id, float volume);
    bool setCaptureVolume(SoundStreamID id,  float volume);
    bool getPlaybackVolume(SoundStreamID id, float &volume) const;
    bool getCaptureVolume(SoundStreamID id,  float &volume) const;

    bool mute (SoundStreamID id, bool mute);
    bool unmute (SoundStreamID id, bool unmute);
    bool isMuted(SoundStreamID id, bool &m) const;


    // ISoundStreamClient: generic broadcasts

RECEIVERS:
    bool startPlayback(SoundStreamID id);
    bool pausePlayback(SoundStreamID id);
    bool stopPlayback(SoundStreamID id);
    bool isPlaybackRunning(SoundStreamID id, bool &b) const;

    bool startCaptureWithFormat(SoundStreamID      id,
                      const SoundFormat &proposed_format,
                      SoundFormat       &real_format,
                      bool               force_format);
    bool stopCapture(SoundStreamID id);
    bool isCaptureRunning(SoundStreamID id, bool &b, SoundFormat &sf) const;

    bool noticeSoundStreamClosed(SoundStreamID id);
    bool noticeSoundStreamRedirected(SoundStreamID oldID, SoundStreamID newID);

    bool noticeSoundStreamData(SoundStreamID id,
                               const SoundFormat &,
                               const char *data, size_t size, size_t &consumed_size,
                               const SoundMetaData &md
                              );


    // Config Access

    int            getHWBufferSize()    const { return m_HWBufferSize; }
    int            getBufferSize()      const { return m_BufferSize; }
    bool           isPlaybackEnabled()  const { return m_EnablePlayback; }
    bool           isCaptureEnabled()   const { return m_EnableCapture;  }
    int            getPlaybackCard()    const { return m_PlaybackCard; }
    int            getPlaybackDevice()  const { return m_PlaybackDevice; }
    int            getCaptureCard()     const { return m_CaptureCard; }
    int            getCaptureDevice()   const { return m_CaptureDevice; }
    const TQMap<TQString, AlsaConfigMixerSetting> &
                   getCaptureMixerSettings() const { return m_CaptureMixerSettings; }

    void           setHWBufferSize(int s);
    void           setBufferSize(int s);
    void           enablePlayback(bool on);
    void           enableCapture(bool on);
    void           setPlaybackDevice(int card, int device);
    void           setCaptureDevice(int card, int device);
    void           setCaptureMixerSettings(const TQMap<TQString, AlsaConfigMixerSetting> &map);

protected slots:

    void   slotPollPlayback();
    void   slotPollCapture();

signals:

    void   sigUpdateConfig();

protected:
//     bool   event(TQEvent *_e);

    bool   openAlsaDevice(snd_pcm_t *&alsa_handle, SoundFormat &format, const char *pcm_name, snd_pcm_stream_t stream, int flags, unsigned &latency);

    bool   openPlaybackDevice (const SoundFormat &format, bool reopen = false);
    bool   openCaptureDevice  (const SoundFormat &format, bool reopen = false);
    bool   closePlaybackDevice(bool force = false);
    bool   closeCaptureDevice (bool force = false);

    bool   openPlaybackMixerDevice (bool reopen = false);
    bool   openCaptureMixerDevice  (bool reopen = false);
    static bool   openMixerDevice(snd_mixer_t *&mixer_handle, int card, bool reopen, TQTimer *timer, int timer_latency);
    bool   closeCaptureMixerDevice (bool force = false);
    bool   closePlaybackMixerDevice(bool force = false);
    static bool   closeMixerDevice(snd_mixer_t *&mixer_handle, int card, SoundStreamID id, snd_pcm_t *pcm_handle, bool force, TQTimer *timer);

    void   checkMixerVolume(SoundStreamID id);
    float  readPlaybackMixerVolume(const TQString &channel, bool &muted) const;
    float  readCaptureMixerVolume(const TQString &channel) const;
    bool   writePlaybackMixerVolume(const TQString &channel, float &vol, bool muted);
    bool   writeCaptureMixerVolume(const TQString &channel, float &vol);
    bool   writeCaptureMixerSwitch(const TQString &channel, bool capture);

    void   selectCaptureChannel (const TQString &channel);

    /* ALSA HANDLES */
    snd_pcm_t      *m_hPlayback;
    snd_pcm_t      *m_hCapture;
    snd_mixer_t    *m_hPlaybackMixer;
    snd_mixer_t    *m_hCaptureMixer;

    SoundFormat     m_PlaybackFormat;
    SoundFormat     m_CaptureFormat;
    int             m_PlaybackCard;
    int             m_PlaybackDevice;
    int             m_CaptureCard;
    int             m_CaptureDevice;

    unsigned        m_PlaybackLatency;
    unsigned        m_CaptureLatency;

    TQStringList     m_PlaybackChannels,
                    m_CaptureChannels,
                    m_CaptureChannelsSwitch;

    TQMap<TQString, AlsaMixerElement> m_PlaybackChannels2ID,
                                    m_CaptureChannels2ID,
                                    m_CaptureChannelsSwitch2ID;

    TQMap<SoundStreamID, SoundStreamConfig>
                    m_PlaybackStreams,
                    m_CaptureStreams;

    TQValueList<SoundStreamID>
                    m_PassivePlaybackStreams;
    SoundStreamID   m_PlaybackStreamID,
                    m_CaptureStreamID;

    size_t          m_HWBufferSize;
    size_t          m_BufferSize;
    RingBuffer      m_PlaybackBuffer,
                    m_CaptureBuffer;

    unsigned        m_CaptureRequestCounter;
    TQ_UINT64        m_CapturePos;
    time_t          m_CaptureStartTime;

    size_t          //m_PlaybackSkipCount,
                    m_CaptureSkipCount;

    bool            m_EnablePlayback,
                    m_EnableCapture;

    TQTimer          m_PlaybackPollingTimer;
    TQTimer          m_CapturePollingTimer;

//     AlsaCaptureThread  *m_captureThread;

    TQMap<TQString, AlsaConfigMixerSetting> m_CaptureMixerSettings;

};



#endif