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
|
/* //device/servers/AudioFlinger/AudioHardwareStub.cpp
**
** Copyright 2007, The Android Open Source Project
**
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
**
** http://www.apache.org/licenses/LICENSE-2.0
**
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*/
#include <stdint.h>
#include <sys/types.h>
#include <stdlib.h>
#include <unistd.h>
#include <utils/String8.h>
#include "AudioHardwareStub.h"
#include <media/AudioRecord.h>
namespace android_audio_legacy {
// ----------------------------------------------------------------------------
AudioHardwareStub::AudioHardwareStub() : mMicMute(false)
{
}
AudioHardwareStub::~AudioHardwareStub()
{
}
status_t AudioHardwareStub::initCheck()
{
return NO_ERROR;
}
AudioStreamOut* AudioHardwareStub::openOutputStream(
uint32_t devices, int *format, uint32_t *channels, uint32_t *sampleRate, status_t *status)
{
AudioStreamOutStub* out = new AudioStreamOutStub();
status_t lStatus = out->set(format, channels, sampleRate);
if (status) {
*status = lStatus;
}
if (lStatus == NO_ERROR)
return out;
delete out;
return 0;
}
void AudioHardwareStub::closeOutputStream(AudioStreamOut* out)
{
delete out;
}
AudioStreamIn* AudioHardwareStub::openInputStream(
uint32_t devices, int *format, uint32_t *channels, uint32_t *sampleRate,
status_t *status, AudioSystem::audio_in_acoustics acoustics)
{
// check for valid input source
if (!AudioSystem::isInputDevice((AudioSystem::audio_devices)devices)) {
return 0;
}
AudioStreamInStub* in = new AudioStreamInStub();
status_t lStatus = in->set(format, channels, sampleRate, acoustics);
if (status) {
*status = lStatus;
}
if (lStatus == NO_ERROR)
return in;
delete in;
return 0;
}
void AudioHardwareStub::closeInputStream(AudioStreamIn* in)
{
delete in;
}
status_t AudioHardwareStub::setVoiceVolume(float volume)
{
return NO_ERROR;
}
status_t AudioHardwareStub::setMasterVolume(float volume)
{
return NO_ERROR;
}
status_t AudioHardwareStub::dumpInternals(int fd, const Vector<String16>& args)
{
const size_t SIZE = 256;
char buffer[SIZE];
String8 result;
result.append("AudioHardwareStub::dumpInternals\n");
snprintf(buffer, SIZE, "\tmMicMute: %s\n", mMicMute? "true": "false");
result.append(buffer);
::write(fd, result.string(), result.size());
return NO_ERROR;
}
status_t AudioHardwareStub::dump(int fd, const Vector<String16>& args)
{
dumpInternals(fd, args);
return NO_ERROR;
}
// ----------------------------------------------------------------------------
status_t AudioStreamOutStub::set(int *pFormat, uint32_t *pChannels, uint32_t *pRate)
{
if (pFormat) *pFormat = format();
if (pChannels) *pChannels = channels();
if (pRate) *pRate = sampleRate();
return NO_ERROR;
}
ssize_t AudioStreamOutStub::write(const void* buffer, size_t bytes)
{
// fake timing for audio output
usleep(bytes * 1000000 / sizeof(int16_t) /
audio_channel_count_from_out_mask(channels()) / sampleRate());
return bytes;
}
status_t AudioStreamOutStub::standby()
{
return NO_ERROR;
}
status_t AudioStreamOutStub::dump(int fd, const Vector<String16>& args)
{
const size_t SIZE = 256;
char buffer[SIZE];
String8 result;
snprintf(buffer, SIZE, "AudioStreamOutStub::dump\n");
snprintf(buffer, SIZE, "\tsample rate: %d\n", sampleRate());
snprintf(buffer, SIZE, "\tbuffer size: %d\n", bufferSize());
snprintf(buffer, SIZE, "\tchannels: %d\n", channels());
snprintf(buffer, SIZE, "\tformat: %d\n", format());
result.append(buffer);
::write(fd, result.string(), result.size());
return NO_ERROR;
}
String8 AudioStreamOutStub::getParameters(const String8& keys)
{
AudioParameter param = AudioParameter(keys);
return param.toString();
}
status_t AudioStreamOutStub::getRenderPosition(uint32_t *dspFrames)
{
return INVALID_OPERATION;
}
// ----------------------------------------------------------------------------
status_t AudioStreamInStub::set(int *pFormat, uint32_t *pChannels, uint32_t *pRate,
AudioSystem::audio_in_acoustics acoustics)
{
return NO_ERROR;
}
ssize_t AudioStreamInStub::read(void* buffer, ssize_t bytes)
{
// fake timing for audio input
usleep(bytes * 1000000 / sizeof(int16_t) /
audio_channel_count_from_in_mask(channels()) / sampleRate());
memset(buffer, 0, bytes);
return bytes;
}
status_t AudioStreamInStub::dump(int fd, const Vector<String16>& args)
{
const size_t SIZE = 256;
char buffer[SIZE];
String8 result;
snprintf(buffer, SIZE, "AudioStreamInStub::dump\n");
result.append(buffer);
snprintf(buffer, SIZE, "\tsample rate: %d\n", sampleRate());
result.append(buffer);
snprintf(buffer, SIZE, "\tbuffer size: %d\n", bufferSize());
result.append(buffer);
snprintf(buffer, SIZE, "\tchannels: %d\n", channels());
result.append(buffer);
snprintf(buffer, SIZE, "\tformat: %d\n", format());
result.append(buffer);
::write(fd, result.string(), result.size());
return NO_ERROR;
}
String8 AudioStreamInStub::getParameters(const String8& keys)
{
AudioParameter param = AudioParameter(keys);
return param.toString();
}
AudioHardwareInterface* createAudioHardware(void) {
return new AudioHardwareStub();
}
// ----------------------------------------------------------------------------
}; // namespace android
|
