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
|
/*
* Copyright (C) 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.
*/
#ifndef ANDROID_IAUDIOFLINGER_H
#define ANDROID_IAUDIOFLINGER_H
#include <stdint.h>
#include <sys/types.h>
#include <unistd.h>
#include <utils/RefBase.h>
#include <utils/Errors.h>
#include <binder/IInterface.h>
#include <media/IAudioTrack.h>
#include <media/IAudioRecord.h>
#include <media/IAudioFlingerClient.h>
#include <utils/String8.h>
namespace android {
// ----------------------------------------------------------------------------
class IAudioFlinger : public IInterface
{
public:
DECLARE_META_INTERFACE(AudioFlinger);
/* create an audio track and registers it with AudioFlinger.
* return null if the track cannot be created.
*/
virtual sp<IAudioTrack> createTrack(
pid_t pid,
int streamType,
uint32_t sampleRate,
int format,
int channelCount,
int frameCount,
uint32_t flags,
const sp<IMemory>& sharedBuffer,
void *output,
status_t *status) = 0;
virtual sp<IAudioRecord> openRecord(
pid_t pid,
void *input,
uint32_t sampleRate,
int format,
int channelCount,
int frameCount,
uint32_t flags,
status_t *status) = 0;
/* query the audio hardware state. This state never changes,
* and therefore can be cached.
*/
virtual uint32_t sampleRate(void *output) const = 0;
virtual int channelCount(void *output) const = 0;
virtual int format(void *output) const = 0;
virtual size_t frameCount(void *output) const = 0;
virtual uint32_t latency(void *output) const = 0;
/* set/get the audio hardware state. This will probably be used by
* the preference panel, mostly.
*/
virtual status_t setMasterVolume(float value) = 0;
virtual status_t setMasterMute(bool muted) = 0;
virtual float masterVolume() const = 0;
virtual bool masterMute() const = 0;
/* set/get stream type state. This will probably be used by
* the preference panel, mostly.
*/
virtual status_t setStreamVolume(int stream, float value, void *output) = 0;
virtual status_t setStreamMute(int stream, bool muted) = 0;
virtual float streamVolume(int stream, void *output) const = 0;
virtual bool streamMute(int stream) const = 0;
// set audio mode
virtual status_t setMode(int mode) = 0;
// mic mute/state
virtual status_t setMicMute(bool state) = 0;
virtual bool getMicMute() const = 0;
// is a music stream active?
virtual bool isMusicActive() const = 0;
virtual status_t setParameters(void *ioHandle, const String8& keyValuePairs) = 0;
virtual String8 getParameters(void *ioHandle, const String8& keys) = 0;
// register a current process for audio output change notifications
virtual void registerClient(const sp<IAudioFlingerClient>& client) = 0;
// retrieve the audio recording buffer size
virtual size_t getInputBufferSize(uint32_t sampleRate, int format, int channelCount) = 0;
virtual void *openOutput(uint32_t *pDevices,
uint32_t *pSamplingRate,
uint32_t *pFormat,
uint32_t *pChannels,
uint32_t *pLatencyMs,
uint32_t flags) = 0;
virtual void *openDuplicateOutput(void *output1, void *output2) = 0;
virtual status_t closeOutput(void *output) = 0;
virtual status_t suspendOutput(void *output) = 0;
virtual status_t restoreOutput(void *output) = 0;
virtual void *openInput(uint32_t *pDevices,
uint32_t *pSamplingRate,
uint32_t *pFormat,
uint32_t *pChannels,
uint32_t acoustics) = 0;
virtual status_t closeInput(void *input) = 0;
virtual status_t setStreamOutput(uint32_t stream, void *output) = 0;
};
// ----------------------------------------------------------------------------
class BnAudioFlinger : public BnInterface<IAudioFlinger>
{
public:
virtual status_t onTransact( uint32_t code,
const Parcel& data,
Parcel* reply,
uint32_t flags = 0);
};
// ----------------------------------------------------------------------------
}; // namespace android
#endif // ANDROID_IAUDIOFLINGER_H
|
