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
|
/*
* Copyright (C) 2016 The CyanogenMod 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.
*/
package cyanogenmod.media;
import android.os.Parcel;
import android.os.Parcelable;
import java.util.Objects;
import cyanogenmod.os.Build;
import cyanogenmod.os.Concierge;
import cyanogenmod.os.Concierge.ParcelInfo;
/**
* AudioSessionInfo represents a single instance of an audio session.
* Audio sessions are created when a new AudioTrack is started, and
* removed when the track is released. Audio session identifiers
* are unique (but may be reused) and are used as a handle by which
* an application may create audio effects on the output stream.
*
* A list of global audio sessions can be obtained by calling
* listAudioSessions() via {@link CMAudioManager}, or a component can listen
* for the {@link CMAudioManager#ACTION_AUDIO_SESSIONS_CHANGED} broadcast.
*
* @hide
*/
public final class AudioSessionInfo implements Parcelable {
/**
* Unique session id
*/
private final int mSessionId;
/**
* Stream type - see audio_stream_type_t
*/
private final int mStream;
/**
* Output flags - see audio_output_flags_t
*/
private final int mFlags;
/**
* Channel mask - see audio_channel_mask_t
*/
private final int mChannelMask;
/**
* UID of the source application
*/
private final int mUid;
public AudioSessionInfo(int sessionId, int stream, int flags, int channelMask, int uid) {
mSessionId = sessionId;
mStream = stream;
mFlags = flags;
mChannelMask = channelMask;
mUid = uid;
}
private AudioSessionInfo(Parcel in) {
// Read parcelable version via the Concierge
ParcelInfo parcelInfo = Concierge.receiveParcel(in);
int parcelableVersion = parcelInfo.getParcelVersion();
/* -- FIG -- */
mSessionId = in.readInt();
mStream = in.readInt();
mFlags = in.readInt();
mChannelMask = in.readInt();
mUid = in.readInt();
if (parcelableVersion > Build.CM_VERSION_CODES.FIG) {
// next-gen mind-altering shit goes here
}
// Complete parcel info for the concierge
parcelInfo.complete();
}
public int getSessionId() {
return mSessionId;
}
public int getStream() {
return mStream;
}
public int getFlags() {
return mFlags;
}
public int getChannelMask() {
return mChannelMask;
}
public int getUid() {
return mUid;
}
@Override
public String toString() {
return String.format(
"audioSessionInfo[sessionId=%d, stream=%d, flags=%d, channelMask=%d, uid=%d",
mSessionId, mStream, mFlags, mChannelMask, mUid);
}
@Override
public int hashCode() {
return Objects.hash(mSessionId, mStream, mFlags, mChannelMask, mUid);
}
@Override
public boolean equals(Object obj) {
if (obj == null || !(obj instanceof AudioSessionInfo)) {
return false;
}
final AudioSessionInfo other = (AudioSessionInfo)obj;
return this == other ||
(mSessionId == other.mSessionId &&
mStream == other.mStream &&
mFlags == other.mFlags &&
mChannelMask == other.mChannelMask &&
mUid == other.mUid);
}
/** @hide */
@Override
public int describeContents() {
return 0;
}
/** @hide */
@Override
public void writeToParcel(Parcel dest, int flags) {
// Tell the concierge to prepare the parcel
ParcelInfo parcelInfo = Concierge.prepareParcel(dest);
/* -- FIG -- */
dest.writeInt(mSessionId);
dest.writeInt(mStream);
dest.writeInt(mFlags);
dest.writeInt(mChannelMask);
dest.writeInt(mUid);
parcelInfo.complete();
}
/** @hide */
public static final Creator<AudioSessionInfo> CREATOR = new Creator<AudioSessionInfo>() {
@Override
public AudioSessionInfo createFromParcel(Parcel source) {
return new AudioSessionInfo(source);
}
@Override
public AudioSessionInfo[] newArray(int size) {
return new AudioSessionInfo[size];
}
};
}
|
