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comparison: dom/system/gonk/android_audio/IAudioFlinger.h
dom/system/gonk/android_audio/IAudioFlinger.h
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| 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 */ | |
| 16 | |
| 17 #ifndef ANDROID_IAUDIOFLINGER_H | |
| 18 #define ANDROID_IAUDIOFLINGER_H | |
| 19 | |
| 20 #include <stdint.h> | |
| 21 #include <sys/types.h> | |
| 22 #include <unistd.h> | |
| 23 | |
| 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> | |
| 34 | |
| 35 namespace android { | |
| 36 | |
| 37 // ---------------------------------------------------------------------------- | |
| 38 | |
| 39 class IAudioFlinger : public IInterface | |
| 40 { | |
| 41 public: | |
| 42 DECLARE_META_INTERFACE(AudioFlinger); | |
| 43 | |
| 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; | |
| 59 | |
| 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; | |
| 70 | |
| 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; | |
| 79 | |
| 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; | |
| 85 | |
| 86 virtual float masterVolume() const = 0; | |
| 87 virtual bool masterMute() const = 0; | |
| 88 | |
| 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; | |
| 94 | |
| 95 virtual float streamVolume(int stream, int output) const = 0; | |
| 96 virtual bool streamMute(int stream) const = 0; | |
| 97 | |
| 98 // set audio mode | |
| 99 virtual status_t setMode(int mode) = 0; | |
| 100 | |
| 101 // mic mute/state | |
| 102 virtual status_t setMicMute(bool state) = 0; | |
| 103 virtual bool getMicMute() const = 0; | |
| 104 | |
| 105 // is any track active on this stream? | |
| 106 virtual bool isStreamActive(int stream) const = 0; | |
| 107 | |
| 108 virtual status_t setParameters(int ioHandle, const String8& keyValuePairs) = 0; | |
| 109 virtual String8 getParameters(int ioHandle, const String8& keys) = 0; | |
| 110 | |
| 111 // register a current process for audio output change notifications | |
| 112 virtual void registerClient(const sp<IAudioFlingerClient>& client) = 0; | |
| 113 | |
| 114 // retrieve the audio recording buffer size | |
| 115 virtual size_t getInputBufferSize(uint32_t sampleRate, int format, int channelCount) = 0; | |
| 116 | |
| 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; | |
| 127 | |
| 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; | |
| 134 | |
| 135 virtual status_t setStreamOutput(uint32_t stream, int output) = 0; | |
| 136 | |
| 137 virtual status_t setVoiceVolume(float volume) = 0; | |
| 138 | |
| 139 virtual status_t getRenderPosition(uint32_t *halFrames, uint32_t *dspFrames, int output) = 0; | |
| 140 | |
| 141 virtual unsigned int getInputFramesLost(int ioHandle) = 0; | |
| 142 | |
| 143 virtual int newAudioSessionId() = 0; | |
| 144 | |
| 145 virtual status_t loadEffectLibrary(const char *libPath, int *handle) = 0; | |
| 146 | |
| 147 virtual status_t unloadEffectLibrary(int handle) = 0; | |
| 148 | |
| 149 virtual status_t queryNumberEffects(uint32_t *numEffects) = 0; | |
| 150 | |
| 151 virtual status_t queryEffect(uint32_t index, effect_descriptor_t *pDescriptor) = 0; | |
| 152 | |
| 153 virtual status_t getEffectDescriptor(effect_uuid_t *pEffectUUID, effect_descriptor_t *pDescriptor) = 0; | |
| 154 | |
| 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; | |
| 164 | |
| 165 virtual status_t moveEffects(int session, int srcOutput, int dstOutput) = 0; | |
| 166 }; | |
| 167 | |
| 168 | |
| 169 // ---------------------------------------------------------------------------- | |
| 170 | |
| 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 }; | |
| 179 | |
| 180 // ---------------------------------------------------------------------------- | |
| 181 | |
| 182 }; // namespace android | |
| 183 | |
| 184 #endif // ANDROID_IAUDIOFLINGER_H |
