dom/system/gonk/android_audio/IAudioFlinger.h@b8a032363ba2
dom/system/gonk/android_audio/IAudioFlinger.h
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
1 /*
2 * Copyright (C) 2007 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
17 #ifndef ANDROID_IAUDIOFLINGER_H
18 #define ANDROID_IAUDIOFLINGER_H
20 #include <stdint.h>
21 #include <sys/types.h>
22 #include <unistd.h>
24 #include <utils/RefBase.h>
25 #include <utils/Errors.h>
26 #include <binder/IInterface.h>
27 #include "IAudioTrack.h"
28 #include "IAudioRecord.h"
29 #include "IAudioFlingerClient.h"
30 #include "EffectApi.h"
31 #include "IEffect.h"
32 #include "IEffectClient.h"
33 #include <utils/String8.h>
35 namespace android {
37 // ----------------------------------------------------------------------------
39 class IAudioFlinger : public IInterface
40 {
41 public:
42 DECLARE_META_INTERFACE(AudioFlinger);
44 /* create an audio track and registers it with AudioFlinger.
45 * return null if the track cannot be created.
46 */
47 virtual sp<IAudioTrack> createTrack(
48 pid_t pid,
49 int streamType,
50 uint32_t sampleRate,
51 int format,
52 int channelCount,
53 int frameCount,
54 uint32_t flags,
55 const sp<IMemory>& sharedBuffer,
56 int output,
57 int *sessionId,
58 status_t *status) = 0;
60 virtual sp<IAudioRecord> openRecord(
61 pid_t pid,
62 int input,
63 uint32_t sampleRate,
64 int format,
65 int channelCount,
66 int frameCount,
67 uint32_t flags,
68 int *sessionId,
69 status_t *status) = 0;
71 /* query the audio hardware state. This state never changes,
72 * and therefore can be cached.
73 */
74 virtual uint32_t sampleRate(int output) const = 0;
75 virtual int channelCount(int output) const = 0;
76 virtual int format(int output) const = 0;
77 virtual size_t frameCount(int output) const = 0;
78 virtual uint32_t latency(int output) const = 0;
80 /* set/get the audio hardware state. This will probably be used by
81 * the preference panel, mostly.
82 */
83 virtual status_t setMasterVolume(float value) = 0;
84 virtual status_t setMasterMute(bool muted) = 0;
86 virtual float masterVolume() const = 0;
87 virtual bool masterMute() const = 0;
89 /* set/get stream type state. This will probably be used by
90 * the preference panel, mostly.
91 */
92 virtual status_t setStreamVolume(int stream, float value, int output) = 0;
93 virtual status_t setStreamMute(int stream, bool muted) = 0;
95 virtual float streamVolume(int stream, int output) const = 0;
96 virtual bool streamMute(int stream) const = 0;
98 // set audio mode
99 virtual status_t setMode(int mode) = 0;
101 // mic mute/state
102 virtual status_t setMicMute(bool state) = 0;
103 virtual bool getMicMute() const = 0;
105 // is any track active on this stream?
106 virtual bool isStreamActive(int stream) const = 0;
108 virtual status_t setParameters(int ioHandle, const String8& keyValuePairs) = 0;
109 virtual String8 getParameters(int ioHandle, const String8& keys) = 0;
111 // register a current process for audio output change notifications
112 virtual void registerClient(const sp<IAudioFlingerClient>& client) = 0;
114 // retrieve the audio recording buffer size
115 virtual size_t getInputBufferSize(uint32_t sampleRate, int format, int channelCount) = 0;
117 virtual int openOutput(uint32_t *pDevices,
118 uint32_t *pSamplingRate,
119 uint32_t *pFormat,
120 uint32_t *pChannels,
121 uint32_t *pLatencyMs,
122 uint32_t flags) = 0;
123 virtual int openDuplicateOutput(int output1, int output2) = 0;
124 virtual status_t closeOutput(int output) = 0;
125 virtual status_t suspendOutput(int output) = 0;
126 virtual status_t restoreOutput(int output) = 0;
128 virtual int openInput(uint32_t *pDevices,
129 uint32_t *pSamplingRate,
130 uint32_t *pFormat,
131 uint32_t *pChannels,
132 uint32_t acoustics) = 0;
133 virtual status_t closeInput(int input) = 0;
135 virtual status_t setStreamOutput(uint32_t stream, int output) = 0;
137 virtual status_t setVoiceVolume(float volume) = 0;
139 virtual status_t getRenderPosition(uint32_t *halFrames, uint32_t *dspFrames, int output) = 0;
141 virtual unsigned int getInputFramesLost(int ioHandle) = 0;
143 virtual int newAudioSessionId() = 0;
145 virtual status_t loadEffectLibrary(const char *libPath, int *handle) = 0;
147 virtual status_t unloadEffectLibrary(int handle) = 0;
149 virtual status_t queryNumberEffects(uint32_t *numEffects) = 0;
151 virtual status_t queryEffect(uint32_t index, effect_descriptor_t *pDescriptor) = 0;
153 virtual status_t getEffectDescriptor(effect_uuid_t *pEffectUUID, effect_descriptor_t *pDescriptor) = 0;
155 virtual sp<IEffect> createEffect(pid_t pid,
156 effect_descriptor_t *pDesc,
157 const sp<IEffectClient>& client,
158 int32_t priority,
159 int output,
160 int sessionId,
161 status_t *status,
162 int *id,
163 int *enabled) = 0;
165 virtual status_t moveEffects(int session, int srcOutput, int dstOutput) = 0;
166 };
169 // ----------------------------------------------------------------------------
171 class BnAudioFlinger : public BnInterface<IAudioFlinger>
172 {
173 public:
174 virtual status_t onTransact( uint32_t code,
175 const Parcel& data,
176 Parcel* reply,
177 uint32_t flags = 0);
178 };
180 // ----------------------------------------------------------------------------
182 }; // namespace android
184 #endif // ANDROID_IAUDIOFLINGER_H
