c74b93fdf3
Don't remove effects until the session they are in goes away or all AudioEffects have been explicitly released. This allows the control panel process to die without stopping the effects. Change-Id: I4496e5df080230ca1af149dec95c1309ab8ea888
181 lines
6.8 KiB
C++
181 lines
6.8 KiB
C++
/*
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* Copyright (C) 2007 The Android Open Source Project
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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 <hardware/audio_effect.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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uint32_t format,
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uint32_t channelMask,
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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 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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uint32_t format,
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uint32_t channelMask,
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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 uint32_t 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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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 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 void acquireAudioSessionId(int audioSession) = 0;
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virtual void releaseAudioSessionId(int audioSession) = 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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};
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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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