212 lines
8.1 KiB
C
212 lines
8.1 KiB
C
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/*
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* Copyright (C) 2007 The Android Open Source Project
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* Copyright (c) 2009-2011, The Linux Foundation. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_IAUDIOFLINGER_H
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#define ANDROID_IAUDIOFLINGER_H
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#include <stdint.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <utils/RefBase.h>
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#include <utils/Errors.h>
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#include <binder/IInterface.h>
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#include <media/IAudioTrack.h>
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#include <media/IAudioRecord.h>
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#include <media/IAudioFlingerClient.h>
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#include <media/EffectApi.h>
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#include <media/IEffect.h>
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#include <media/IEffectClient.h>
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#include <utils/String8.h>
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namespace android {
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// ----------------------------------------------------------------------------
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class IAudioFlinger : public IInterface
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{
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public:
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DECLARE_META_INTERFACE(AudioFlinger);
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/* create an audio track and registers it with AudioFlinger.
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* return null if the track cannot be created.
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*/
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virtual sp<IAudioTrack> createTrack(
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pid_t pid,
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int streamType,
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uint32_t sampleRate,
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int format,
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int channelCount,
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int frameCount,
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uint32_t flags,
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const sp<IMemory>& sharedBuffer,
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int output,
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int *sessionId,
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status_t *status) = 0;
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virtual void createSession(
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pid_t pid,
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uint32_t sampleRate,
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int channelCount,
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int *sessionId,
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status_t *status) = 0;
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virtual void deleteSession() = 0;
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virtual void applyEffectsOn(
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int16_t *buffer1,
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int16_t *buffer2,
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int size) = 0;
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virtual sp<IAudioRecord> openRecord(
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pid_t pid,
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int input,
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uint32_t sampleRate,
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int format,
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int channelCount,
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int frameCount,
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uint32_t flags,
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int *sessionId,
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status_t *status) = 0;
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/* query the audio hardware state. This state never changes,
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* and therefore can be cached.
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*/
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virtual uint32_t sampleRate(int output) const = 0;
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virtual int channelCount(int output) const = 0;
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virtual int format(int output) const = 0;
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virtual size_t frameCount(int output) const = 0;
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virtual uint32_t latency(int output) const = 0;
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/* set/get the audio hardware state. This will probably be used by
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* the preference panel, mostly.
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*/
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virtual status_t setMasterVolume(float value) = 0;
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virtual status_t setMasterMute(bool muted) = 0;
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virtual float masterVolume() const = 0;
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virtual bool masterMute() const = 0;
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/* set/get stream type state. This will probably be used by
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* the preference panel, mostly.
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*/
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virtual status_t setStreamVolume(int stream, float value, int output) = 0;
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virtual status_t setStreamMute(int stream, bool muted) = 0;
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virtual float streamVolume(int stream, int output) const = 0;
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virtual bool streamMute(int stream) const = 0;
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// set audio mode
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virtual status_t setMode(int mode) = 0;
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// mic mute/state
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virtual status_t setMicMute(bool state) = 0;
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virtual bool getMicMute() const = 0;
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// is any track active on this stream?
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virtual bool isStreamActive(int stream) const = 0;
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virtual status_t setParameters(int ioHandle, const String8& keyValuePairs) = 0;
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virtual String8 getParameters(int ioHandle, const String8& keys) = 0;
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// register a current process for audio output change notifications
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virtual void registerClient(const sp<IAudioFlingerClient>& client) = 0;
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// retrieve the audio recording buffer size
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virtual size_t getInputBufferSize(uint32_t sampleRate, int format, int channelCount) = 0;
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virtual int openOutput(uint32_t *pDevices,
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uint32_t *pSamplingRate,
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uint32_t *pFormat,
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uint32_t *pChannels,
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uint32_t *pLatencyMs,
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uint32_t flags) = 0;
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virtual int openSession(uint32_t *pDevices,
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uint32_t *pFormat,
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uint32_t flags,
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int32_t stream,
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int32_t sessionId){return 0;};
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virtual status_t pauseSession(int output, int32_t stream) = 0;
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virtual status_t resumeSession(int output, int32_t stream) = 0;
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virtual status_t closeSession(int output) = 0;
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virtual int openDuplicateOutput(int output1, int output2) = 0;
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virtual status_t closeOutput(int output) = 0;
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virtual status_t suspendOutput(int output) = 0;
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virtual status_t restoreOutput(int output) = 0;
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virtual int openInput(uint32_t *pDevices,
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uint32_t *pSamplingRate,
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uint32_t *pFormat,
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uint32_t *pChannels,
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uint32_t acoustics) = 0;
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virtual status_t closeInput(int input) = 0;
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virtual status_t setStreamOutput(uint32_t stream, int output) = 0;
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virtual status_t setVoiceVolume(float volume) = 0;
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virtual status_t getRenderPosition(uint32_t *halFrames, uint32_t *dspFrames, int output) = 0;
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virtual unsigned int getInputFramesLost(int ioHandle) = 0;
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virtual int newAudioSessionId() = 0;
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virtual status_t loadEffectLibrary(const char *libPath, int *handle) = 0;
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virtual status_t unloadEffectLibrary(int handle) = 0;
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virtual status_t queryNumberEffects(uint32_t *numEffects) = 0;
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virtual status_t queryEffect(uint32_t index, effect_descriptor_t *pDescriptor) = 0;
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virtual status_t getEffectDescriptor(effect_uuid_t *pEffectUUID, effect_descriptor_t *pDescriptor) = 0;
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virtual sp<IEffect> createEffect(pid_t pid,
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effect_descriptor_t *pDesc,
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const sp<IEffectClient>& client,
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int32_t priority,
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int output,
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int sessionId,
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status_t *status,
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int *id,
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int *enabled) = 0;
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virtual status_t moveEffects(int session, int srcOutput, int dstOutput) = 0;
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virtual status_t deregisterClient(const sp<IAudioFlingerClient>& client) { return false; };
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virtual status_t setFmVolume(float volume) = 0;
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};
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// ----------------------------------------------------------------------------
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class BnAudioFlinger : public BnInterface<IAudioFlinger>
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{
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public:
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virtual status_t onTransact( uint32_t code,
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const Parcel& data,
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Parcel* reply,
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uint32_t flags = 0);
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};
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// ----------------------------------------------------------------------------
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}; // namespace android
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#endif // ANDROID_IAUDIOFLINGER_H
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