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1 /*
2  * Copyright (C) 2010 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 #include "Configuration.h"
18 #ifdef ANDROID
19 #include <jni.h>
20 
21 #include "media/AudioEffect.h"
22 #include "hardware/audio_effect.h"
23 #endif
24 
25 /* Interface structures */
26 
27 typedef struct Object_interface {
28     const struct SLObjectItf_ *mItf;    // const
29     // field mThis would be redundant within an IObject, so we substitute mEngine
30     CEngine *mEngine;               // const
31     const ClassTable *mClass;       // const
32     SLuint32 mInstanceID;           // const for debugger and for RPC, 0 means unpublished
33     slObjectCallback mCallback;
34     void *mContext;
35     unsigned mGottenMask;           ///< bit-mask of interfaces exposed or added, then gotten
36     unsigned mLossOfControlMask;    // interfaces with loss of control enabled
37     unsigned mAttributesMask;       // attributes which have changed since last sync
38 #if USE_PROFILES & USE_PROFILES_BASE
39     SLint32 mPriority;
40 #endif
41     pthread_mutex_t mMutex;
42 #ifdef USE_DEBUG
43     // Only keep the pthread_t, not the kernel tid, because pthread_self() is very fast
44     // (typically just arithmetic on the stack pointer). But a gettid() is a kernel call
45     // and so too slow to do every time a mutex is acquired. However, we can determine
46     // the kernel tid from the pthread_t.
47     pthread_t mOwner;
48     const char *mFile;
49     int mLine;
50     volatile int32_t mGeneration;   // read without a lock, incremented with a lock
51 #endif
52     pthread_cond_t mCond;
53     SLuint8 mState;                 // really SLuint32, but SLuint8 to save space
54 #if USE_PROFILES & USE_PROFILES_BASE
55     SLuint8 mPreemptable;           // really SLboolean, but SLuint8 to save space
56 #else
57     SLuint8 mPadding;
58 #endif
59     SLuint8 mStrongRefCount;        // number of strong references to this object
60     // (object cannot be destroyed as long as > 0, and referrers _prefer_ it stay in Realized state)
61     // for best alignment, do not add any fields here
62 #define INTERFACES_Default 1
63     SLuint8 mInterfaceStates[INTERFACES_Default];    // state of each of interface
64     // do not add any fields here
65 } IObject;
66 
67 #include "locks.h"
68 
69 typedef struct {
70     const struct SL3DCommitItf_ *mItf;
71     IObject *mThis;
72     SLboolean mDeferred;
73     SLuint32 mGeneration;   // incremented each master clock cycle
74     SLuint32 mWaiting;      // number of threads waiting in Commit
75 } I3DCommit;
76 
77 enum CartesianSphericalActive {
78     CARTESIAN_COMPUTED_SPHERICAL_SET,
79     CARTESIAN_REQUESTED_SPHERICAL_SET,
80     CARTESIAN_UNKNOWN_SPHERICAL_SET,
81     CARTESIAN_SET_SPHERICAL_COMPUTED,   // not in 1.0.1
82     CARTESIAN_SET_SPHERICAL_REQUESTED,  // not in 1.0.1
83     CARTESIAN_SET_SPHERICAL_UNKNOWN
84 };
85 
86 typedef struct {
87     const struct SL3DDopplerItf_ *mItf;
88     IObject *mThis;
89     // The API allows client to specify either Cartesian and spherical velocities.
90     // But an implementation will likely prefer one or the other. So for
91     // maximum portablity, we maintain both units and an indication of which
92     // unit was set most recently. In addition, we keep a flag saying whether
93     // the other unit has been derived yet. It can take significant time
94     // to compute the other unit, so this may be deferred to another thread.
95     // For this reason we also keep an indication of whether the secondary
96     // has been computed yet, and its accuracy.
97     // Though only one unit is primary at a time, a union is inappropriate:
98     // the application might read in both units (not in 1.0.1),
99     // and due to multi-threading concerns.
100     SLVec3D mVelocityCartesian;
101     struct {
102         SLmillidegree mAzimuth;
103         SLmillidegree mElevation;
104         SLmillidegree mSpeed;
105     } mVelocitySpherical;
106     enum CartesianSphericalActive mVelocityActive;
107     SLpermille mDopplerFactor;
108 } I3DDoppler;
109 
110 typedef struct {
111     const struct SL3DGroupingItf_ *mItf;
112     IObject *mThis;
113     C3DGroup *mGroup;   // strong reference to associated group or NULL
114 } I3DGrouping;
115 
116 enum AnglesVectorsActive {
117     ANGLES_COMPUTED_VECTORS_SET,    // not in 1.0.1
118     ANGLES_REQUESTED_VECTORS_SET,   // not in 1.0.1
119     ANGLES_UNKNOWN_VECTORS_SET,
120     ANGLES_SET_VECTORS_COMPUTED,
121     ANGLES_SET_VECTORS_REQUESTED,
122     ANGLES_SET_VECTORS_UNKNOWN
123 };
124 
125 typedef struct {
126     const struct SL3DLocationItf_ *mItf;
127     IObject *mThis;
128     SLVec3D mLocationCartesian;
129     struct {
130         SLmillidegree mAzimuth;
131         SLmillidegree mElevation;
132         SLmillimeter mDistance;
133     } mLocationSpherical;
134     enum CartesianSphericalActive mLocationActive;
135     struct {
136         SLmillidegree mHeading;
137         SLmillidegree mPitch;
138         SLmillidegree mRoll;
139     } mOrientationAngles;
140     struct {
141         SLVec3D mFront;
142         SLVec3D mAbove;
143         SLVec3D mUp;
144     } mOrientationVectors;
145     enum AnglesVectorsActive mOrientationActive;
146     // Rotations can be slow, so are deferred.
147     SLmillidegree mTheta;
148     SLVec3D mAxis;
149     SLboolean mRotatePending;
150 } I3DLocation;
151 
152 typedef struct {
153     const struct SL3DMacroscopicItf_ *mItf;
154     IObject *mThis;
155     struct {
156         SLmillimeter mWidth;
157         SLmillimeter mHeight;
158         SLmillimeter mDepth;
159     } mSize;
160     struct {
161         SLmillimeter mHeading;
162         SLmillimeter mPitch;
163         SLmillimeter mRoll;
164     } mOrientationAngles;
165     struct {
166         SLVec3D mFront;
167         SLVec3D mAbove;
168         SLVec3D mUp;
169     } mOrientationVectors;
170     enum AnglesVectorsActive mOrientationActive;
171     // Rotations can be slow, so are deferred.
172     SLmillidegree mTheta;
173     SLVec3D mAxis;
174     SLboolean mRotatePending;
175 } I3DMacroscopic;
176 
177 typedef struct {
178     const struct SL3DSourceItf_ *mItf;
179     IObject *mThis;
180     SLboolean mHeadRelative;
181     SLboolean mRolloffMaxDistanceMute;
182     SLmillimeter mMaxDistance;
183     SLmillimeter mMinDistance;
184     SLmillidegree mConeInnerAngle;
185     SLmillidegree mConeOuterAngle;
186     SLmillibel mConeOuterLevel;
187     SLpermille mRolloffFactor;
188     SLpermille mRoomRolloffFactor;
189     SLuint8 mDistanceModel;
190 } I3DSource;
191 
192 typedef struct {
193     const struct SLAudioDecoderCapabilitiesItf_ *mItf;
194     IObject *mThis;
195 } IAudioDecoderCapabilities;
196 
197 typedef struct {
198     const struct SLAudioEncoderItf_ *mItf;
199     IObject *mThis;
200     SLAudioEncoderSettings mSettings;
201 } IAudioEncoder;
202 
203 typedef struct {
204     const struct SLAudioEncoderCapabilitiesItf_ *mItf;
205     IObject *mThis;
206 } IAudioEncoderCapabilities;
207 
208 typedef struct {
209     const struct SLAudioIODeviceCapabilitiesItf_ *mItf;
210     IObject *mThis;
211     slAvailableAudioInputsChangedCallback mAvailableAudioInputsChangedCallback;
212     void *mAvailableAudioInputsChangedContext;
213     slAvailableAudioOutputsChangedCallback mAvailableAudioOutputsChangedCallback;
214     void *mAvailableAudioOutputsChangedContext;
215     slDefaultDeviceIDMapChangedCallback mDefaultDeviceIDMapChangedCallback;
216     void *mDefaultDeviceIDMapChangedContext;
217 } IAudioIODeviceCapabilities;
218 
219 typedef struct {
220     const struct SLBassBoostItf_ *mItf;
221     IObject *mThis;
222     SLboolean mEnabled;
223     SLpermille mStrength;
224 #if defined(ANDROID)
225     effect_descriptor_t mBassBoostDescriptor;
226     android::sp<android::AudioEffect> mBassBoostEffect;
227 #endif
228 } IBassBoost;
229 
230 typedef struct BufferQueue_interface {
231     const struct SLBufferQueueItf_ *mItf;
232     IObject *mThis;
233     SLBufferQueueState mState;
234     slBufferQueueCallback mCallback;
235     void *mContext;
236     // originally SLuint32, but range-checked down to SLuint16
237     SLuint16 mNumBuffers;
238     /*SLboolean*/ SLuint16 mClearRequested;
239     BufferHeader *mArray;
240     BufferHeader *mFront, *mRear;
241 #ifdef ANDROID
242     SLuint32 mSizeConsumed;
243     bool mCallbackPending;
244 #endif
245     // saves a malloc in the typical case
246 #define BUFFER_HEADER_TYPICAL 4
247     BufferHeader mTypical[BUFFER_HEADER_TYPICAL+1];
248 } IBufferQueue;
249 
250 #define MAX_DEVICE 2    // hard-coded array size for default in/out
251 
252 typedef struct {
253     const struct SLDeviceVolumeItf_ *mItf;
254     IObject *mThis;
255     SLint32 mVolume[MAX_DEVICE];
256 } IDeviceVolume;
257 
258 typedef struct {
259     const struct SLDynamicInterfaceManagementItf_ *mItf;
260     IObject *mThis;
261     slDynamicInterfaceManagementCallback mCallback;
262     void *mContext;
263 } IDynamicInterfaceManagement;
264 
265 typedef struct {
266     const struct SLDynamicSourceItf_ *mItf;
267     IObject *mThis;
268     SLDataSource *mDataSource;
269 } IDynamicSource;
270 
271 // private
272 
273 struct EnableLevel {
274     SLboolean mEnable;
275     SLmillibel mSendLevel;
276 };
277 
278 // indexes into IEffectSend.mEnableLevels
279 
280 #define AUX_ENVIRONMENTALREVERB 0
281 #define AUX_PRESETREVERB        1
282 #define AUX_MAX                 2
283 
284 typedef struct {
285     const struct SLEffectSendItf_ *mItf;
286     IObject *mThis;
287     struct EnableLevel mEnableLevels[AUX_MAX];  // wet enable and volume per effect type
288 } IEffectSend;
289 
290 typedef struct Engine_interface {
291     const struct SLEngineItf_ *mItf;
292     IObject *mThis;
293     SLboolean mLossOfControlGlobal;
294 #ifdef USE_SDL
295     COutputMix *mOutputMix; // SDL pulls PCM from an arbitrary IOutputMixExt
296 #endif
297     // Each engine is its own universe.
298     SLuint32 mInstanceCount;
299     unsigned mInstanceMask; // 1 bit per active object
300     unsigned mChangedMask;  // objects which have changed since last sync
301 #define MAX_INSTANCE 32     // maximum active objects per engine, see mInstanceMask
302     IObject *mInstances[MAX_INSTANCE];
303     SLboolean mShutdown;
304     SLboolean mShutdownAck;
305     // SLuint32 mVersion;      // 0xXXYYZZ where XX=major, YY=minor, ZZ=step
306     SLuint32 mNativeEndianness; // one of SL_BYTEORDER_LITTLEENDIAN or SL_BYTEORDER_BIGENDIAN
307 } IEngine;
308 
309 typedef struct {
310     const struct SLEngineCapabilitiesItf_ *mItf;
311     IObject *mThis;
312     SLboolean mThreadSafe;
313     // const
314     SLuint32 mMaxIndexLED;
315     SLuint32 mMaxIndexVibra;
316 } IEngineCapabilities;
317 
318 typedef struct {
319     const struct SLEnvironmentalReverbItf_ *mItf;
320     IObject *mThis;
321     SLEnvironmentalReverbSettings mProperties;
322 #if defined(ANDROID)
323     effect_descriptor_t mEnvironmentalReverbDescriptor;
324     android::sp<android::AudioEffect> mEnvironmentalReverbEffect;
325 #endif
326 } IEnvironmentalReverb;
327 
328 struct EqualizerBand {
329     SLmilliHertz mMin;
330     SLmilliHertz mCenter;
331     SLmilliHertz mMax;
332 };
333 
334 #if defined(ANDROID)
335 #define MAX_EQ_BANDS 0
336 #else
337 #define MAX_EQ_BANDS 4  // compile-time limit, runtime limit may be smaller
338 #endif
339 
340 typedef struct {
341     const struct SLEqualizerItf_ *mItf;
342     IObject *mThis;
343     SLboolean mEnabled;
344     SLuint16 mPreset;
345 #if 0 < MAX_EQ_BANDS
346     SLmillibel mLevels[MAX_EQ_BANDS];
347 #endif
348     // const to end of struct
349     SLuint16 mNumPresets;
350     SLuint16 mNumBands;
351 #if !defined(ANDROID)
352     const struct EqualizerBand *mBands;
353     const struct EqualizerPreset *mPresets;
354 #endif
355     SLmillibel mBandLevelRangeMin;
356     SLmillibel mBandLevelRangeMax;
357 #if defined(ANDROID)
358     effect_descriptor_t mEqDescriptor;
359     android::sp<android::AudioEffect> mEqEffect;
360 #endif
361 } IEqualizer;
362 
363 #define MAX_LED_COUNT 32
364 
365 typedef struct {
366     const struct SLLEDArrayItf_ *mItf;
367     IObject *mThis;
368     SLuint32 mLightMask;
369     SLHSL mColors[MAX_LED_COUNT];
370     // const
371     SLuint8 mCount;
372 } ILEDArray;
373 
374 typedef struct {
375     const struct SLMetadataExtractionItf_ *mItf;
376     IObject *mThis;
377     SLuint32 mKeySize;
378     const void *mKey;
379     SLuint32 mKeyEncoding;
380     const SLchar *mValueLangCountry;
381     SLuint32 mValueEncoding;
382     SLuint8 mFilterMask;
383     int mKeyFilter;
384 } IMetadataExtraction;
385 
386 typedef struct {
387     const struct SLMetadataTraversalItf_ *mItf;
388     IObject *mThis;
389     SLuint32 mIndex;
390     SLuint32 mMode;
391     SLuint32 mCount;
392     SLuint32 mSize;
393 } IMetadataTraversal;
394 
395 typedef struct {
396     const struct SLMIDIMessageItf_ *mItf;
397     IObject *mThis;
398     slMetaEventCallback mMetaEventCallback;
399     void *mMetaEventContext;
400     slMIDIMessageCallback mMessageCallback;
401     void *mMessageContext;
402     SLuint8 mMessageTypes;
403 } IMIDIMessage;
404 
405 typedef struct {
406     const struct SLMIDIMuteSoloItf_ *mItf;
407     IObject *mThis;
408     SLuint16 mChannelMuteMask;
409     SLuint16 mChannelSoloMask;
410     SLuint32 mTrackMuteMask;
411     SLuint32 mTrackSoloMask;
412     // const
413     SLuint16 mTrackCount;
414 } IMIDIMuteSolo;
415 
416 typedef struct {
417     const struct SLMIDITempoItf_ *mItf;
418     IObject *mThis;
419     SLuint32 mTicksPerQuarterNote;
420     SLuint32 mMicrosecondsPerQuarterNote;
421 } IMIDITempo;
422 
423 typedef struct {
424     const struct SLMIDITimeItf_ *mItf;
425     IObject *mThis;
426     SLuint32 mDuration;
427     SLuint32 mPosition;
428     SLuint32 mStartTick;
429     SLuint32 mNumTicks;
430 } IMIDITime;
431 
432 typedef struct {
433     const struct SLMuteSoloItf_ *mItf;
434     IObject *mThis;
435     // fields that were formerly here are now at CAudioPlayer
436 } IMuteSolo;
437 
438 #define MAX_TRACK 32        // see mActiveMask
439 
440 typedef struct {
441     const struct SLOutputMixItf_ *mItf;
442     IObject *mThis;
443     slMixDeviceChangeCallback mCallback;
444     void *mContext;
445 } IOutputMix;
446 
447 #ifdef USE_OUTPUTMIXEXT
448 typedef struct {
449     const struct SLOutputMixExtItf_ *mItf;
450     IObject *mThis;
451     unsigned mActiveMask;   // 1 bit per active track
452     Track mTracks[MAX_TRACK];
453     SLboolean mDestroyRequested;    ///< Mixer to acknowledge application's call to Object::Destroy
454 } IOutputMixExt;
455 #endif
456 
457 typedef struct {
458     const struct SLPitchItf_ *mItf;
459     IObject *mThis;
460     SLpermille mPitch;
461     // const
462     SLpermille mMinPitch;
463     SLpermille mMaxPitch;
464 } IPitch;
465 
466 typedef struct Play_interface {
467     const struct SLPlayItf_ *mItf;
468     IObject *mThis;
469     SLuint32 mState;
470     // next 2 fields are read-only to application
471     SLmillisecond mDuration;
472     SLmillisecond mPosition;
473     slPlayCallback mCallback;
474     void *mContext;
475     SLuint32 mEventFlags;
476     // the ISeek trick of using a distinct value doesn't work here because it's readable by app
477     SLmillisecond mMarkerPosition;
478     SLmillisecond mPositionUpdatePeriod; // Zero means do not do position updates (FIXME ~0)
479 #ifdef USE_OUTPUTMIXEXT
480     SLuint32 mFrameUpdatePeriod;         // mPositionUpdatePeriod in frame units
481     SLmillisecond mLastSeekPosition;     // Last known accurate position, set at Seek
482     SLuint32 mFramesSinceLastSeek;       // Frames mixed since last known accurate position
483     SLuint32 mFramesSincePositionUpdate; // Frames mixed since last position update callback
484 #endif
485 } IPlay;
486 
487 typedef struct {
488     const struct SLPlaybackRateItf_ *mItf;
489     IObject *mThis;
490     SLpermille mRate;
491     SLuint32 mProperties;
492     // const after initialization
493     SLpermille mMinRate;
494     SLpermille mMaxRate;
495     SLpermille mStepSize;
496     SLuint32 mCapabilities;
497 } IPlaybackRate;
498 
499 typedef struct {
500     const struct SLPrefetchStatusItf_ *mItf;
501     IObject *mThis;
502     SLuint32 mStatus;
503     SLpermille mLevel;
504     slPrefetchCallback mCallback;
505     void *mContext;
506     SLuint32 mCallbackEventsMask;
507     SLpermille mFillUpdatePeriod;
508 #ifdef ANDROID
509     /** FIXME used to call PrefetchStatus callback with object unlocked prior to return from API */
510     slPrefetchCallback mDeferredPrefetchCallback;
511     void *mDeferredPrefetchContext;
512     SLuint32 mDeferredPrefetchEvents;
513 #endif
514 } IPrefetchStatus;
515 
516 typedef struct {
517     const struct SLPresetReverbItf_ *mItf;
518     IObject *mThis;
519     SLuint16 mPreset;
520 #if defined(ANDROID)
521     effect_descriptor_t mPresetReverbDescriptor;
522     android::sp<android::AudioEffect> mPresetReverbEffect;
523 #endif
524 } IPresetReverb;
525 
526 typedef struct {
527     const struct SLRatePitchItf_ *mItf;
528     IObject *mThis;
529     SLpermille mRate;
530     // const
531     SLpermille mMinRate;
532     SLpermille mMaxRate;
533 } IRatePitch;
534 
535 typedef struct {
536     const struct SLRecordItf_ *mItf;
537     IObject *mThis;
538     SLuint32 mState;
539     SLmillisecond mDurationLimit;
540     SLmillisecond mPosition;
541     slRecordCallback mCallback;
542     void *mContext;
543     SLuint32 mCallbackEventsMask;
544     SLmillisecond mMarkerPosition;
545     SLmillisecond mPositionUpdatePeriod;
546 } IRecord;
547 
548 typedef struct {
549     const struct SLSeekItf_ *mItf;
550     IObject *mThis;
551     SLmillisecond mPos;     // mPos != SL_TIME_UNKNOWN means pending seek request
552     SLboolean mLoopEnabled;
553     SLmillisecond mStartPos;
554     SLmillisecond mEndPos;
555 } ISeek;
556 
557 typedef struct {
558     const struct SLThreadSyncItf_ *mItf;
559     IObject *mThis;
560     SLboolean mInCriticalSection;
561     SLuint32 mWaiting;  // number of threads waiting
562     pthread_t mOwner;
563 } IThreadSync;
564 
565 typedef struct {
566     const struct SLVibraItf_ *mItf;
567     IObject *mThis;
568     SLboolean mVibrate;
569     SLmilliHertz mFrequency;
570     SLpermille mIntensity;
571 } IVibra;
572 
573 typedef struct {
574     const struct SLVirtualizerItf_ *mItf;
575     IObject *mThis;
576     SLboolean mEnabled;
577     SLpermille mStrength;
578 #if defined(ANDROID)
579     effect_descriptor_t mVirtualizerDescriptor;
580     android::sp<android::AudioEffect> mVirtualizerEffect;
581 #endif
582 } IVirtualizer;
583 
584 typedef struct {
585     const struct SLVisualizationItf_ *mItf;
586     IObject *mThis;
587     slVisualizationCallback mCallback;
588     void *mContext;
589     SLmilliHertz mRate;
590 } IVisualization;
591 
592 typedef struct /*Volume_interface*/ {
593     const struct SLVolumeItf_ *mItf;
594     IObject *mThis;
595     // Values as specified by the application
596     SLmillibel mLevel;
597     SLpermille mStereoPosition;
598     SLuint8 /*SLboolean*/ mMute;
599     SLuint8 /*SLboolean*/ mEnableStereoPosition;
600 } IVolume;
601 
602 typedef struct {
603     const struct XAEngineItf_ *mItf;
604     IObject *mThis;
605 } IXAEngine;
606 
607 #define NB_SUPPORTED_STREAMS 1 // only one (video) stream supported in this implementation
608 typedef struct {
609     const struct XAStreamInformationItf_ *mItf;
610     IObject *mThis;
611     xaStreamEventChangeCallback mCallback;
612     void *mContext;
613     XAboolean mActiveStreams[NB_SUPPORTED_STREAMS];
614 #ifdef ANDROID
615     android::Vector<StreamInfo> mStreamInfoTable;
616 #endif
617 } IStreamInformation;
618 
619 typedef struct {
620     const struct XAVideoDecoderCapabilitiesItf_ *mItf;
621     IObject *mThis;
622 } IVideoDecoderCapabilities;
623 
624 /* Class structures */
625 
626 /*typedef*/ struct C3DGroup_struct {
627     IObject mObject;
628 #define INTERFACES_3DGroup 6 // see MPH_to_3DGroup in MPH_to.c for list of interfaces
629     SLuint8 mInterfaceStates2[INTERFACES_3DGroup - INTERFACES_Default];
630     IDynamicInterfaceManagement mDynamicInterfaceManagement;
631     I3DLocation m3DLocation;
632     I3DDoppler m3DDoppler;
633     I3DSource m3DSource;
634     I3DMacroscopic m3DMacroscopic;
635     // remaining are per-instance private fields not associated with an interface
636     unsigned mMemberMask;   // set of member objects
637 } /*C3DGroup*/;
638 
639 #ifdef ANDROID
640 
641 // FIXME Move these into the I... section above
642 
643 typedef struct {
644     const struct SLAndroidEffectItf_ *mItf;
645     IObject *mThis;
646     android::KeyedVector<SLuint32, android::sp<android::AudioEffect> > *mEffects;
647 } IAndroidEffect;
648 
649 typedef struct {
650     const struct SLAndroidEffectCapabilitiesItf_ *mItf;
651     IObject *mThis;
652     SLuint32 mNumFx;
653     effect_descriptor_t* mFxDescriptors;
654 } IAndroidEffectCapabilities;
655 
656 typedef struct {
657     const struct SLAndroidEffectSendItf_ *mItf;
658     IObject *mThis;
659     // only one send per interface for now (1 bus)
660     SLboolean mEnabled;
661     SLmillibel mSendLevel; //android::KeyedVector<SLuint32, SLmillibel> mSendLevels;
662 } IAndroidEffectSend;
663 
664 typedef struct {
665     const struct SLAndroidConfigurationItf_ *mItf;
666     IObject *mThis;
667     // only 1 each. When we support other Proxy types, we will need to get more clever about this.
668     jobject mRoutingProxy;
669 } IAndroidConfiguration;
670 
671 typedef struct {
672     const struct SLAndroidBufferQueueItf_ *mItf;
673     IObject *mThis;
674     SLAndroidBufferQueueState mState;
675     slAndroidBufferQueueCallback mCallback;
676     SLuint32 mCallbackEventsMask;
677     void *mContext;
678     SLuint16 mNumBuffers;
679     AndroidBufferType_type mBufferType;
680     AdvancedBufferHeader *mBufferArray;
681     AdvancedBufferHeader *mFront, *mRear;
682     bool mEOS;  // whether EOS has been enqueued; never reset
683 } IAndroidBufferQueue;
684 
685 typedef struct {
686     const struct SLAndroidAcousticEchoCancellationItf_ *mItf;
687     IObject *mThis;
688     SLboolean mEnabled;
689     effect_descriptor_t mAECDescriptor;
690     android::sp<android::AudioEffect> mAECEffect;
691 } IAndroidAcousticEchoCancellation;
692 
693 typedef struct {
694     const struct SLAndroidAutomaticGainControlItf_ *mItf;
695     IObject *mThis;
696     SLboolean mEnabled;
697      effect_descriptor_t mAGCDescriptor;
698      android::sp<android::AudioEffect> mAGCEffect;
699 } IAndroidAutomaticGainControl;
700 
701 typedef struct {
702     const struct SLAndroidNoiseSuppressionItf_ *mItf;
703     IObject *mThis;
704     SLboolean mEnabled;
705     effect_descriptor_t mNSDescriptor;
706     android::sp<android::AudioEffect> mNSEffect;
707 } IAndroidNoiseSuppression;
708 
709 #endif
710