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
|
/***************************************************************************
* Copyright (C) 2009-2020 by Ilya Kotov *
* forkotov02@ya.ru *
* *
* 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. *
* *
* This program 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 General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#include <QObject>
#include <unistd.h>
#include <stdio.h>
#include <string.h>
#include <iostream>
#include <qmmp/buffer.h>
#include <qmmp/visual.h>
#include "outputwaveout.h"
#define MAX_WAVEBLOCKS 256
static CRITICAL_SECTION cs;
static HWAVEOUT dev = NULL;
static unsigned int ScheduledBlocks = 0;
static int PlayedWaveHeadersCount = 0; // free index
static WAVEHDR* PlayedWaveHeaders [MAX_WAVEBLOCKS];
static void CALLBACK wave_callback (HWAVE hWave, UINT uMsg, DWORD dwInstance, DWORD dwParam1, DWORD dwParam2)
{
Q_UNUSED(hWave);
Q_UNUSED(dwInstance);
Q_UNUSED(dwParam2);
if (uMsg == WOM_DONE)
{
EnterCriticalSection (&cs);
PlayedWaveHeaders [PlayedWaveHeadersCount++] = (WAVEHDR*) dwParam1;
ScheduledBlocks--; // decrease the number of USED blocks
LeaveCriticalSection (&cs);
}
}
static void
free_memory (void)
{
WAVEHDR* wh;
HGLOBAL hg;
EnterCriticalSection (&cs);
wh = PlayedWaveHeaders [--PlayedWaveHeadersCount];
LeaveCriticalSection (&cs);
waveOutUnprepareHeader (dev, wh, sizeof (WAVEHDR));
hg = GlobalHandle (wh -> lpData); // Deallocate the buffer memory
GlobalUnlock (hg);
GlobalFree (hg);
hg = GlobalHandle (wh); // Deallocate the header memory
GlobalUnlock (hg);
GlobalFree (hg);
}
OutputWaveOut::OutputWaveOut() : Output()
{
m_totalWritten = 0;
m_frameSize = 0;
}
OutputWaveOut::~OutputWaveOut()
{
uninitialize();
}
bool OutputWaveOut::initialize(quint32 freq, ChannelMap map, Qmmp::AudioFormat format)
{
Q_UNUSED(format);
m_totalWritten = 0;
if (!waveOutGetNumDevs ())
{
qWarning("OutputWaveOut: no audio device found");
return false;
}
WAVEFORMATEX fmt;
UINT deviceID = WAVE_MAPPER;
fmt.wFormatTag = WAVE_FORMAT_PCM;
fmt.wBitsPerSample = 16;
fmt.nChannels = map.count();
fmt.nSamplesPerSec = (unsigned long)(freq);
fmt.nBlockAlign = fmt.nChannels * fmt.wBitsPerSample/8;
fmt.nAvgBytesPerSec = fmt.nSamplesPerSec * fmt.nChannels * fmt.wBitsPerSample/8;
switch (waveOutOpen (&dev, deviceID, &fmt, (DWORD)wave_callback, 0, CALLBACK_FUNCTION))
{
case MMSYSERR_ALLOCATED:
qWarning("OutputWaveOut: Device is already open.");
return false;
case MMSYSERR_BADDEVICEID:
qWarning("OutputWaveOut: The specified device is out of range.");
return false;
case MMSYSERR_NODRIVER:
qWarning("OutputWaveOut: There is no audio driver in this system.");
return false;
case MMSYSERR_NOMEM:
qWarning("OutputWaveOut: Unable to allocate sound memory.");
return false;
case WAVERR_BADFORMAT:
qWarning("OutputWaveOut: This audio format is not supported.");
return false;
case WAVERR_SYNC:
qWarning("OutputWaveOut: The device is synchronous.");
return false;
default:
qWarning("OutputWaveOut: Unknown media error.");
return false;
case MMSYSERR_NOERROR:
break;
}
waveOutReset (dev);
InitializeCriticalSection (&cs);
configure(freq, map, Qmmp::PCM_S16LE);
m_frameSize = channels() * sampleSize();
return true;
}
qint64 OutputWaveOut::latency()
{
MMTIME mmtime;
mmtime.wType = TIME_SAMPLES;
if(waveOutGetPosition(dev, &mmtime, sizeof(MMTIME)) != MMSYSERR_NOERROR)
return 0;
return (m_totalWritten / m_frameSize - mmtime.u.sample) * 1000 / sampleRate();
}
qint64 OutputWaveOut::writeAudio(unsigned char *data, qint64 len)
{
HGLOBAL hg;
HGLOBAL hg2;
LPWAVEHDR wh;
void* allocptr;
len = qMin(len, (qint64)1024);
while (PlayedWaveHeadersCount > 0) // free used blocks ...
free_memory ();
if (ScheduledBlocks >= sizeof(PlayedWaveHeaders)/sizeof(*PlayedWaveHeaders)) // wait for a free block ...
{
usleep(50000);
return 0;
}
if ((hg2 = GlobalAlloc (GMEM_MOVEABLE, len)) == NULL) // allocate some memory for a copy of the buffer
{
qWarning("OutputWaveOut: GlobalAlloc failed");
return 0;
}
allocptr = GlobalLock (hg2);
CopyMemory (allocptr, data, len); // Here we can call any modification output functions we want....
if ((hg = GlobalAlloc (GMEM_MOVEABLE | GMEM_ZEROINIT, sizeof (WAVEHDR))) == NULL) // now make a header and WRITE IT!
return -1;
wh = (wavehdr_tag*)GlobalLock (hg);
wh->dwBufferLength = len;
wh->lpData = (CHAR *)allocptr;
if (waveOutPrepareHeader (dev, wh, sizeof (WAVEHDR)) != MMSYSERR_NOERROR)
{
GlobalUnlock (hg);
GlobalFree (hg);
return -1;
}
if (waveOutWrite (dev, wh, sizeof (WAVEHDR)) != MMSYSERR_NOERROR)
{
GlobalUnlock (hg);
GlobalFree (hg);
return -1;
}
EnterCriticalSection (&cs);
ScheduledBlocks++;
LeaveCriticalSection (&cs);
m_totalWritten += len;
return len;
}
void OutputWaveOut::drain()
{
while (ScheduledBlocks > 0)
Sleep(10);
while (PlayedWaveHeadersCount > 0) // free used blocks ...
free_memory();
}
void OutputWaveOut::suspend()
{
waveOutPause(dev);
}
void OutputWaveOut::resume()
{
waveOutRestart(dev);
}
void OutputWaveOut::reset()
{
while (PlayedWaveHeadersCount > 0) // free used blocks ...
free_memory ();
waveOutReset (dev);
m_totalWritten = 0;
}
void OutputWaveOut::uninitialize()
{
if (dev)
{
waveOutReset(dev); // reset the device
while (ScheduledBlocks > 0)
Sleep (10);
while (PlayedWaveHeadersCount > 0) // free used blocks ...
free_memory ();
waveOutReset (dev); // reset the device
waveOutClose (dev); // close the device
dev = nullptr;
}
DeleteCriticalSection (&cs);
m_totalWritten = 0;
return;
}
/***** MIXER *****/
VolumeWaveOut::VolumeWaveOut()
{}
VolumeWaveOut::~VolumeWaveOut()
{}
void VolumeWaveOut::setVolume(const VolumeSettings &vol)
{
DWORD data = (vol.right*0xFFFF/100 << 16) | vol.left*0xFFFF/100;
waveOutSetVolume(nullptr, data);
}
VolumeSettings VolumeWaveOut::volume() const
{
VolumeSettings vol;
DWORD data;
waveOutGetVolume(nullptr, (PDWORD)&data);
vol.left = (long)LOWORD(data) * 100 / 0xFFFF + 1;
vol.right = (long)HIWORD(data) * 100 / 0xFFFF + 1;
return vol;
}
bool VolumeWaveOut::isSupported() const
{
WAVEOUTCAPS waveCaps;
if(waveOutGetDevCaps(0,(LPWAVEOUTCAPS)&waveCaps, sizeof(WAVEOUTCAPS)) != MMSYSERR_NOERROR)
return false;
return (waveCaps.dwSupport & WAVECAPS_VOLUME) != 0;
}
|
