AudioPlayer_to_android.cpp revision 86d4c6adc589ad73ff38e480151e65e755a7071a 
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 "sles_allinclusive.h"
18#include "android_prompts.h"
19#include "android/android_AudioToCbRenderer.h"
20#include "android/android_StreamPlayer.h"
21#include "android/android_LocAVPlayer.h"
22#include "android/include/AacBqToPcmCbRenderer.h"
23
24#include <fcntl.h>
25#include <sys/stat.h>
26
27#include <system/audio.h>
28
29template class android::KeyedVector<SLuint32, android::AudioEffect* > ;
30
31#define KEY_STREAM_TYPE_PARAMSIZE  sizeof(SLint32)
32
33#define AUDIOTRACK_MIN_PLAYBACKRATE_PERMILLE  500
34#define AUDIOTRACK_MAX_PLAYBACKRATE_PERMILLE 2000
35
36//-----------------------------------------------------------------------------
37// FIXME this method will be absorbed into android_audioPlayer_setPlayState() once
38//       bufferqueue and uri/fd playback are moved under the GenericPlayer C++ object
39SLresult aplayer_setPlayState(const android::sp<android::GenericPlayer> &ap, SLuint32 playState,
40        AndroidObjectState* pObjState) {
41    SLresult result = SL_RESULT_SUCCESS;
42    AndroidObjectState objState = *pObjState;
43
44    switch (playState) {
45     case SL_PLAYSTATE_STOPPED:
46         SL_LOGV("setting GenericPlayer to SL_PLAYSTATE_STOPPED");
47         ap->stop();
48         break;
49     case SL_PLAYSTATE_PAUSED:
50         SL_LOGV("setting GenericPlayer to SL_PLAYSTATE_PAUSED");
51         switch(objState) {
52         case ANDROID_UNINITIALIZED:
53             *pObjState = ANDROID_PREPARING;
54             ap->prepare();
55             break;
56         case ANDROID_PREPARING:
57             break;
58         case ANDROID_READY:
59             ap->pause();
60             break;
61         default:
62             SL_LOGE(ERROR_PLAYERSETPLAYSTATE_INVALID_OBJECT_STATE_D, playState);
63             result = SL_RESULT_INTERNAL_ERROR;
64             break;
65         }
66         break;
67     case SL_PLAYSTATE_PLAYING: {
68         SL_LOGV("setting GenericPlayer to SL_PLAYSTATE_PLAYING");
69         switch(objState) {
70         case ANDROID_UNINITIALIZED:
71             *pObjState = ANDROID_PREPARING;
72             ap->prepare();
73             // intended fall through
74         case ANDROID_PREPARING:
75             // intended fall through
76         case ANDROID_READY:
77             ap->play();
78             break;
79         default:
80             SL_LOGE(ERROR_PLAYERSETPLAYSTATE_INVALID_OBJECT_STATE_D, playState);
81             result = SL_RESULT_INTERNAL_ERROR;
82             break;
83         }
84         }
85         break;
86     default:
87         // checked by caller, should not happen
88         SL_LOGE(ERROR_SHOULDNT_BE_HERE_S, "aplayer_setPlayState");
89         result = SL_RESULT_INTERNAL_ERROR;
90         break;
91     }
92
93    return result;
94}
95
96
97//-----------------------------------------------------------------------------
98// Callback associated with a AudioToCbRenderer of an SL ES AudioPlayer that gets its data
99// from a URI or FD, to write the decoded audio data to a buffer queue
100static size_t adecoder_writeToBufferQueue(const uint8_t *data, size_t size, CAudioPlayer* ap) {
101    if (!android::CallbackProtector::enterCbIfOk(ap->mCallbackProtector)) {
102        // it is not safe to enter the callback (the player is about to go away)
103        return 0;
104    }
105    size_t sizeConsumed = 0;
106    SL_LOGD("received %d bytes from decoder", size);
107    slBufferQueueCallback callback = NULL;
108    void * callbackPContext = NULL;
109
110    // push decoded data to the buffer queue
111    object_lock_exclusive(&ap->mObject);
112
113    if (ap->mBufferQueue.mState.count != 0) {
114        assert(ap->mBufferQueue.mFront != ap->mBufferQueue.mRear);
115
116        BufferHeader *oldFront = ap->mBufferQueue.mFront;
117        BufferHeader *newFront = &oldFront[1];
118
119        uint8_t *pDest = (uint8_t *)oldFront->mBuffer + ap->mBufferQueue.mSizeConsumed;
120        if (ap->mBufferQueue.mSizeConsumed + size < oldFront->mSize) {
121            // room to consume the whole or rest of the decoded data in one shot
122            ap->mBufferQueue.mSizeConsumed += size;
123            // consume data but no callback to the BufferQueue interface here
124            memcpy (pDest, data, size);
125            sizeConsumed = size;
126        } else {
127            // push as much as possible of the decoded data into the buffer queue
128            sizeConsumed = oldFront->mSize - ap->mBufferQueue.mSizeConsumed;
129
130            // the buffer at the head of the buffer queue is full, update the state
131            ap->mBufferQueue.mSizeConsumed = 0;
132            if (newFront ==  &ap->mBufferQueue.mArray[ap->mBufferQueue.mNumBuffers + 1]) {
133                newFront = ap->mBufferQueue.mArray;
134            }
135            ap->mBufferQueue.mFront = newFront;
136
137            ap->mBufferQueue.mState.count--;
138            ap->mBufferQueue.mState.playIndex++;
139            // consume data
140            memcpy (pDest, data, sizeConsumed);
141            // data has been copied to the buffer, and the buffer queue state has been updated
142            // we will notify the client if applicable
143            callback = ap->mBufferQueue.mCallback;
144            // save callback data
145            callbackPContext = ap->mBufferQueue.mContext;
146        }
147
148    } else {
149        // no available buffers in the queue to write the decoded data
150        sizeConsumed = 0;
151    }
152
153    object_unlock_exclusive(&ap->mObject);
154    // notify client
155    if (NULL != callback) {
156        (*callback)(&ap->mBufferQueue.mItf, callbackPContext);
157    }
158
159    ap->mCallbackProtector->exitCb();
160    return sizeConsumed;
161}
162
163//-----------------------------------------------------------------------------
164int android_getMinFrameCount(uint32_t sampleRate) {
165    int afSampleRate;
166    if (android::AudioSystem::getOutputSamplingRate(&afSampleRate,
167            ANDROID_DEFAULT_OUTPUT_STREAM_TYPE) != android::NO_ERROR) {
168        return ANDROID_DEFAULT_AUDIOTRACK_BUFFER_SIZE;
169    }
170    int afFrameCount;
171    if (android::AudioSystem::getOutputFrameCount(&afFrameCount,
172            ANDROID_DEFAULT_OUTPUT_STREAM_TYPE) != android::NO_ERROR) {
173        return ANDROID_DEFAULT_AUDIOTRACK_BUFFER_SIZE;
174    }
175    uint32_t afLatency;
176    if (android::AudioSystem::getOutputLatency(&afLatency,
177            ANDROID_DEFAULT_OUTPUT_STREAM_TYPE) != android::NO_ERROR) {
178        return ANDROID_DEFAULT_AUDIOTRACK_BUFFER_SIZE;
179    }
180    // minimum nb of buffers to cover output latency, given the size of each hardware audio buffer
181    uint32_t minBufCount = afLatency / ((1000 * afFrameCount)/afSampleRate);
182    if (minBufCount < 2) minBufCount = 2;
183    // minimum number of frames to cover output latency at the sample rate of the content
184    return (afFrameCount*sampleRate*minBufCount)/afSampleRate;
185}
186
187
188//-----------------------------------------------------------------------------
189#define LEFT_CHANNEL_MASK  0x1 << 0
190#define RIGHT_CHANNEL_MASK 0x1 << 1
191
192void android_audioPlayer_volumeUpdate(CAudioPlayer* ap)
193{
194    assert(ap != NULL);
195
196    // the source's channel count, where zero means unknown
197    SLuint8 channelCount = ap->mNumChannels;
198
199    // whether each channel is audible
200    bool leftAudibilityFactor, rightAudibilityFactor;
201
202    // mute has priority over solo
203    if (channelCount >= STEREO_CHANNELS) {
204        if (ap->mMuteMask & LEFT_CHANNEL_MASK) {
205            // left muted
206            leftAudibilityFactor = false;
207        } else {
208            // left not muted
209            if (ap->mSoloMask & LEFT_CHANNEL_MASK) {
210                // left soloed
211                leftAudibilityFactor = true;
212            } else {
213                // left not soloed
214                if (ap->mSoloMask & RIGHT_CHANNEL_MASK) {
215                    // right solo silences left
216                    leftAudibilityFactor = false;
217                } else {
218                    // left and right are not soloed, and left is not muted
219                    leftAudibilityFactor = true;
220                }
221            }
222        }
223
224        if (ap->mMuteMask & RIGHT_CHANNEL_MASK) {
225            // right muted
226            rightAudibilityFactor = false;
227        } else {
228            // right not muted
229            if (ap->mSoloMask & RIGHT_CHANNEL_MASK) {
230                // right soloed
231                rightAudibilityFactor = true;
232            } else {
233                // right not soloed
234                if (ap->mSoloMask & LEFT_CHANNEL_MASK) {
235                    // left solo silences right
236                    rightAudibilityFactor = false;
237                } else {
238                    // left and right are not soloed, and right is not muted
239                    rightAudibilityFactor = true;
240                }
241            }
242        }
243
244    // channel mute and solo are ignored for mono and unknown channel count sources
245    } else {
246        leftAudibilityFactor = true;
247        rightAudibilityFactor = true;
248    }
249
250    // compute volumes without setting
251    const bool audibilityFactors[2] = {leftAudibilityFactor, rightAudibilityFactor};
252    float volumes[2];
253    android_player_volumeUpdate(volumes, &ap->mVolume, channelCount, ap->mAmplFromDirectLevel,
254            audibilityFactors);
255    float leftVol = volumes[0], rightVol = volumes[1];
256
257    // set volume on the underlying media player or audio track
258    if (ap->mAPlayer != 0) {
259        ap->mAPlayer->setVolume(leftVol, rightVol);
260    } else if (ap->mAudioTrack != 0) {
261        ap->mAudioTrack->setVolume(leftVol, rightVol);
262    }
263
264    // changes in the AudioPlayer volume must be reflected in the send level:
265    //  in SLEffectSendItf or in SLAndroidEffectSendItf?
266    // FIXME replace interface test by an internal API once we have one.
267    if (NULL != ap->mEffectSend.mItf) {
268        for (unsigned int i=0 ; i<AUX_MAX ; i++) {
269            if (ap->mEffectSend.mEnableLevels[i].mEnable) {
270                android_fxSend_setSendLevel(ap,
271                        ap->mEffectSend.mEnableLevels[i].mSendLevel + ap->mVolume.mLevel);
272                // there's a single aux bus on Android, so we can stop looking once the first
273                // aux effect is found.
274                break;
275            }
276        }
277    } else if (NULL != ap->mAndroidEffectSend.mItf) {
278        android_fxSend_setSendLevel(ap, ap->mAndroidEffectSend.mSendLevel + ap->mVolume.mLevel);
279    }
280}
281
282// Called by android_audioPlayer_volumeUpdate and android_mediaPlayer_volumeUpdate to compute
283// volumes, but setting volumes is handled by the caller.
284
285void android_player_volumeUpdate(float *pVolumes /*[2]*/, const IVolume *volumeItf, unsigned
286channelCount, float amplFromDirectLevel, const bool *audibilityFactors /*[2]*/)
287{
288    assert(pVolumes != NULL);
289    assert(volumeItf != NULL);
290    // OK for audibilityFactors to be NULL
291
292    bool leftAudibilityFactor, rightAudibilityFactor;
293
294    // apply player mute factor
295    // note that AudioTrack has mute() but not MediaPlayer, so it's easier to use volume
296    // to mute for both rather than calling mute() for AudioTrack
297
298    // player is muted
299    if (volumeItf->mMute) {
300        leftAudibilityFactor = false;
301        rightAudibilityFactor = false;
302    // player isn't muted, and channel mute/solo audibility factors are available (AudioPlayer)
303    } else if (audibilityFactors != NULL) {
304        leftAudibilityFactor = audibilityFactors[0];
305        rightAudibilityFactor = audibilityFactors[1];
306    // player isn't muted, and channel mute/solo audibility factors aren't available (MediaPlayer)
307    } else {
308        leftAudibilityFactor = true;
309        rightAudibilityFactor = true;
310    }
311
312    // compute amplification as the combination of volume level and stereo position
313    //   amplification (or attenuation) from volume level
314    float amplFromVolLevel = sles_to_android_amplification(volumeItf->mLevel);
315    //   amplification from direct level (changed in SLEffectSendtItf and SLAndroidEffectSendItf)
316    float leftVol  = amplFromVolLevel * amplFromDirectLevel;
317    float rightVol = leftVol;
318
319    // amplification from stereo position
320    if (volumeItf->mEnableStereoPosition) {
321        // Left/right amplification (can be attenuations) factors derived for the StereoPosition
322        float amplFromStereoPos[STEREO_CHANNELS];
323        // panning law depends on content channel count: mono to stereo panning vs stereo balance
324        if (1 == channelCount) {
325            // mono to stereo panning
326            double theta = (1000+volumeItf->mStereoPosition)*M_PI_4/1000.0f; // 0 <= theta <= Pi/2
327            amplFromStereoPos[0] = cos(theta);
328            amplFromStereoPos[1] = sin(theta);
329        // channel count is 0 (unknown), 2 (stereo), or > 2 (multi-channel)
330        } else {
331            // stereo balance
332            if (volumeItf->mStereoPosition > 0) {
333                amplFromStereoPos[0] = (1000-volumeItf->mStereoPosition)/1000.0f;
334                amplFromStereoPos[1] = 1.0f;
335            } else {
336                amplFromStereoPos[0] = 1.0f;
337                amplFromStereoPos[1] = (1000+volumeItf->mStereoPosition)/1000.0f;
338            }
339        }
340        leftVol  *= amplFromStereoPos[0];
341        rightVol *= amplFromStereoPos[1];
342    }
343
344    // apply audibility factors
345    if (!leftAudibilityFactor) {
346        leftVol = 0.0;
347    }
348    if (!rightAudibilityFactor) {
349        rightVol = 0.0;
350    }
351
352    // return the computed volumes
353    pVolumes[0] = leftVol;
354    pVolumes[1] = rightVol;
355}
356
357//-----------------------------------------------------------------------------
358void audioTrack_handleMarker_lockPlay(CAudioPlayer* ap) {
359    //SL_LOGV("received event EVENT_MARKER from AudioTrack");
360    slPlayCallback callback = NULL;
361    void* callbackPContext = NULL;
362
363    interface_lock_shared(&ap->mPlay);
364    callback = ap->mPlay.mCallback;
365    callbackPContext = ap->mPlay.mContext;
366    interface_unlock_shared(&ap->mPlay);
367
368    if (NULL != callback) {
369        // getting this event implies SL_PLAYEVENT_HEADATMARKER was set in the event mask
370        (*callback)(&ap->mPlay.mItf, callbackPContext, SL_PLAYEVENT_HEADATMARKER);
371    }
372}
373
374//-----------------------------------------------------------------------------
375void audioTrack_handleNewPos_lockPlay(CAudioPlayer* ap) {
376    //SL_LOGV("received event EVENT_NEW_POS from AudioTrack");
377    slPlayCallback callback = NULL;
378    void* callbackPContext = NULL;
379
380    interface_lock_shared(&ap->mPlay);
381    callback = ap->mPlay.mCallback;
382    callbackPContext = ap->mPlay.mContext;
383    interface_unlock_shared(&ap->mPlay);
384
385    if (NULL != callback) {
386        // getting this event implies SL_PLAYEVENT_HEADATNEWPOS was set in the event mask
387        (*callback)(&ap->mPlay.mItf, callbackPContext, SL_PLAYEVENT_HEADATNEWPOS);
388    }
389}
390
391
392//-----------------------------------------------------------------------------
393void audioTrack_handleUnderrun_lockPlay(CAudioPlayer* ap) {
394    slPlayCallback callback = NULL;
395    void* callbackPContext = NULL;
396
397    interface_lock_shared(&ap->mPlay);
398    callback = ap->mPlay.mCallback;
399    callbackPContext = ap->mPlay.mContext;
400    bool headStalled = (ap->mPlay.mEventFlags & SL_PLAYEVENT_HEADSTALLED) != 0;
401    interface_unlock_shared(&ap->mPlay);
402
403    if ((NULL != callback) && headStalled) {
404        (*callback)(&ap->mPlay.mItf, callbackPContext, SL_PLAYEVENT_HEADSTALLED);
405    }
406}
407
408
409//-----------------------------------------------------------------------------
410/**
411 * post-condition: play state of AudioPlayer is SL_PLAYSTATE_PAUSED if setPlayStateToPaused is true
412 *
413 * note: a conditional flag, setPlayStateToPaused, is used here to specify whether the play state
414 *       needs to be changed when the player reaches the end of the content to play. This is
415 *       relative to what the specification describes for buffer queues vs the
416 *       SL_PLAYEVENT_HEADATEND event. In the OpenSL ES specification 1.0.1:
417 *        - section 8.12 SLBufferQueueItf states "In the case of starvation due to insufficient
418 *          buffers in the queue, the playing of audio data stops. The player remains in the
419 *          SL_PLAYSTATE_PLAYING state."
420 *        - section 9.2.31 SL_PLAYEVENT states "SL_PLAYEVENT_HEADATEND Playback head is at the end
421 *          of the current content and the player has paused."
422 */
423void audioPlayer_dispatch_headAtEnd_lockPlay(CAudioPlayer *ap, bool setPlayStateToPaused,
424        bool needToLock) {
425    //SL_LOGV("ap=%p, setPlayStateToPaused=%d, needToLock=%d", ap, setPlayStateToPaused,
426    //        needToLock);
427    slPlayCallback playCallback = NULL;
428    void * playContext = NULL;
429    // SLPlayItf callback or no callback?
430    if (needToLock) {
431        interface_lock_exclusive(&ap->mPlay);
432    }
433    if (ap->mPlay.mEventFlags & SL_PLAYEVENT_HEADATEND) {
434        playCallback = ap->mPlay.mCallback;
435        playContext = ap->mPlay.mContext;
436    }
437    if (setPlayStateToPaused) {
438        ap->mPlay.mState = SL_PLAYSTATE_PAUSED;
439    }
440    if (needToLock) {
441        interface_unlock_exclusive(&ap->mPlay);
442    }
443    // enqueue callback with no lock held
444    if (NULL != playCallback) {
445#ifndef USE_ASYNCHRONOUS_PLAY_CALLBACK
446        (*playCallback)(&ap->mPlay.mItf, playContext, SL_PLAYEVENT_HEADATEND);
447#else
448        SLresult result = EnqueueAsyncCallback_ppi(ap, playCallback, &ap->mPlay.mItf, playContext,
449                SL_PLAYEVENT_HEADATEND);
450        if (SL_RESULT_SUCCESS != result) {
451            LOGW("Callback %p(%p, %p, SL_PLAYEVENT_HEADATEND) dropped", playCallback,
452                    &ap->mPlay.mItf, playContext);
453        }
454#endif
455    }
456
457}
458
459
460//-----------------------------------------------------------------------------
461SLresult audioPlayer_setStreamType(CAudioPlayer* ap, SLint32 type) {
462    SLresult result = SL_RESULT_SUCCESS;
463    SL_LOGV("type %d", type);
464
465    int newStreamType = ANDROID_DEFAULT_OUTPUT_STREAM_TYPE;
466    switch(type) {
467    case SL_ANDROID_STREAM_VOICE:
468        newStreamType = AUDIO_STREAM_VOICE_CALL;
469        break;
470    case SL_ANDROID_STREAM_SYSTEM:
471        newStreamType = AUDIO_STREAM_SYSTEM;
472        break;
473    case SL_ANDROID_STREAM_RING:
474        newStreamType = AUDIO_STREAM_RING;
475        break;
476    case SL_ANDROID_STREAM_MEDIA:
477        newStreamType = AUDIO_STREAM_MUSIC;
478        break;
479    case SL_ANDROID_STREAM_ALARM:
480        newStreamType = AUDIO_STREAM_ALARM;
481        break;
482    case SL_ANDROID_STREAM_NOTIFICATION:
483        newStreamType = AUDIO_STREAM_NOTIFICATION;
484        break;
485    default:
486        SL_LOGE(ERROR_PLAYERSTREAMTYPE_SET_UNKNOWN_TYPE);
487        result = SL_RESULT_PARAMETER_INVALID;
488        break;
489    }
490
491    // stream type needs to be set before the object is realized
492    // (ap->mAudioTrack is supposed to be NULL until then)
493    if (SL_OBJECT_STATE_UNREALIZED != ap->mObject.mState) {
494        SL_LOGE(ERROR_PLAYERSTREAMTYPE_REALIZED);
495        result = SL_RESULT_PRECONDITIONS_VIOLATED;
496    } else {
497        ap->mStreamType = newStreamType;
498    }
499
500    return result;
501}
502
503
504//-----------------------------------------------------------------------------
505SLresult audioPlayer_getStreamType(CAudioPlayer* ap, SLint32 *pType) {
506    SLresult result = SL_RESULT_SUCCESS;
507
508    switch(ap->mStreamType) {
509    case AUDIO_STREAM_VOICE_CALL:
510        *pType = SL_ANDROID_STREAM_VOICE;
511        break;
512    case AUDIO_STREAM_SYSTEM:
513        *pType = SL_ANDROID_STREAM_SYSTEM;
514        break;
515    case AUDIO_STREAM_RING:
516        *pType = SL_ANDROID_STREAM_RING;
517        break;
518    case AUDIO_STREAM_DEFAULT:
519    case AUDIO_STREAM_MUSIC:
520        *pType = SL_ANDROID_STREAM_MEDIA;
521        break;
522    case AUDIO_STREAM_ALARM:
523        *pType = SL_ANDROID_STREAM_ALARM;
524        break;
525    case AUDIO_STREAM_NOTIFICATION:
526        *pType = SL_ANDROID_STREAM_NOTIFICATION;
527        break;
528    default:
529        result = SL_RESULT_INTERNAL_ERROR;
530        *pType = SL_ANDROID_STREAM_MEDIA;
531        break;
532    }
533
534    return result;
535}
536
537
538//-----------------------------------------------------------------------------
539void audioPlayer_auxEffectUpdate(CAudioPlayer* ap) {
540    if ((ap->mAudioTrack != 0) && (ap->mAuxEffect != 0)) {
541        android_fxSend_attach(ap, true, ap->mAuxEffect, ap->mVolume.mLevel + ap->mAuxSendLevel);
542    }
543}
544
545
546//-----------------------------------------------------------------------------
547void audioPlayer_setInvalid(CAudioPlayer* ap) {
548    ap->mAndroidObjType = INVALID_TYPE;
549}
550
551
552//-----------------------------------------------------------------------------
553/*
554 * returns true if the given data sink is supported by AudioPlayer that doesn't
555 *   play to an OutputMix object, false otherwise
556 *
557 * pre-condition: the locator of the audio sink is not SL_DATALOCATOR_OUTPUTMIX
558 */
559bool audioPlayer_isSupportedNonOutputMixSink(const SLDataSink* pAudioSink) {
560    bool result = true;
561    const SLuint32 sinkLocatorType = *(SLuint32 *)pAudioSink->pLocator;
562    const SLuint32 sinkFormatType = *(SLuint32 *)pAudioSink->pFormat;
563
564    switch (sinkLocatorType) {
565
566    case SL_DATALOCATOR_BUFFERQUEUE:
567    case SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE:
568        if (SL_DATAFORMAT_PCM != sinkFormatType) {
569            SL_LOGE("Unsupported sink format 0x%x, expected SL_DATAFORMAT_PCM",
570                    (unsigned)sinkFormatType);
571            result = false;
572        }
573        // it's no use checking the PCM format fields because additional characteristics
574        // such as the number of channels, or sample size are unknown to the player at this stage
575        break;
576
577    default:
578        SL_LOGE("Unsupported sink locator type 0x%x", (unsigned)sinkLocatorType);
579        result = false;
580        break;
581    }
582
583    return result;
584}
585
586
587//-----------------------------------------------------------------------------
588/*
589 * returns the Android object type if the locator type combinations for the source and sinks
590 *   are supported by this implementation, INVALID_TYPE otherwise
591 */
592AndroidObjectType audioPlayer_getAndroidObjectTypeForSourceSink(CAudioPlayer *ap) {
593
594    const SLDataSource *pAudioSrc = &ap->mDataSource.u.mSource;
595    const SLDataSink *pAudioSnk = &ap->mDataSink.u.mSink;
596    const SLuint32 sourceLocatorType = *(SLuint32 *)pAudioSrc->pLocator;
597    const SLuint32 sinkLocatorType = *(SLuint32 *)pAudioSnk->pLocator;
598    AndroidObjectType type = INVALID_TYPE;
599
600    //--------------------------------------
601    // Sink / source matching check:
602    // the following source / sink combinations are supported
603    //     SL_DATALOCATOR_BUFFERQUEUE                / SL_DATALOCATOR_OUTPUTMIX
604    //     SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE   / SL_DATALOCATOR_OUTPUTMIX
605    //     SL_DATALOCATOR_URI                        / SL_DATALOCATOR_OUTPUTMIX
606    //     SL_DATALOCATOR_ANDROIDFD                  / SL_DATALOCATOR_OUTPUTMIX
607    //     SL_DATALOCATOR_ANDROIDBUFFERQUEUE         / SL_DATALOCATOR_OUTPUTMIX
608    //     SL_DATALOCATOR_ANDROIDBUFFERQUEUE         / SL_DATALOCATOR_BUFFERQUEUE
609    //     SL_DATALOCATOR_URI                        / SL_DATALOCATOR_BUFFERQUEUE
610    //     SL_DATALOCATOR_ANDROIDFD                  / SL_DATALOCATOR_BUFFERQUEUE
611    //     SL_DATALOCATOR_URI                        / SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE
612    //     SL_DATALOCATOR_ANDROIDFD                  / SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE
613    switch (sinkLocatorType) {
614
615    case SL_DATALOCATOR_OUTPUTMIX: {
616        switch (sourceLocatorType) {
617
618        //   Buffer Queue to AudioTrack
619        case SL_DATALOCATOR_BUFFERQUEUE:
620        case SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE:
621            type = AUDIOPLAYER_FROM_PCM_BUFFERQUEUE;
622            break;
623
624        //   URI or FD to MediaPlayer
625        case SL_DATALOCATOR_URI:
626        case SL_DATALOCATOR_ANDROIDFD:
627            type = AUDIOPLAYER_FROM_URIFD;
628            break;
629
630        //   Android BufferQueue to MediaPlayer (shared memory streaming)
631        case SL_DATALOCATOR_ANDROIDBUFFERQUEUE:
632            type = AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE;
633            break;
634
635        default:
636            SL_LOGE("Source data locator 0x%x not supported with SL_DATALOCATOR_OUTPUTMIX sink",
637                    (unsigned)sourceLocatorType);
638            break;
639        }
640        }
641        break;
642
643    case SL_DATALOCATOR_BUFFERQUEUE:
644    case SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE:
645        switch (sourceLocatorType) {
646
647        //   URI or FD decoded to PCM in a buffer queue
648        case SL_DATALOCATOR_URI:
649        case SL_DATALOCATOR_ANDROIDFD:
650            type = AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE;
651            break;
652
653        //   AAC ADTS Android buffer queue decoded to PCM in a buffer queue
654        case SL_DATALOCATOR_ANDROIDBUFFERQUEUE:
655            type = AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE;
656            break;
657
658        default:
659            SL_LOGE("Source data locator 0x%x not supported with SL_DATALOCATOR_BUFFERQUEUE sink",
660                    (unsigned)sourceLocatorType);
661            break;
662        }
663        break;
664
665    default:
666        SL_LOGE("Sink data locator 0x%x not supported", (unsigned)sinkLocatorType);
667        break;
668    }
669
670    return type;
671}
672
673
674//-----------------------------------------------------------------------------
675/*
676 * Callback associated with an SfPlayer of an SL ES AudioPlayer that gets its data
677 * from a URI or FD, for prepare, prefetch, and play events
678 */
679static void sfplayer_handlePrefetchEvent(int event, int data1, int data2, void* user) {
680
681    // FIXME see similar code and comment in player_handleMediaPlayerEventNotifications
682
683    if (NULL == user) {
684        return;
685    }
686
687    CAudioPlayer *ap = (CAudioPlayer *)user;
688    if (!android::CallbackProtector::enterCbIfOk(ap->mCallbackProtector)) {
689        // it is not safe to enter the callback (the track is about to go away)
690        return;
691    }
692    union {
693        char c[sizeof(int)];
694        int i;
695    } u;
696    u.i = event;
697    SL_LOGV("sfplayer_handlePrefetchEvent(event='%c%c%c%c' (%d), data1=%d, data2=%d, user=%p) from "
698            "SfAudioPlayer", u.c[3], u.c[2], u.c[1], u.c[0], event, data1, data2, user);
699    switch(event) {
700
701    case android::GenericPlayer::kEventPrepared: {
702        SL_LOGV("Received GenericPlayer::kEventPrepared for CAudioPlayer %p", ap);
703
704        // assume no callback
705        slPrefetchCallback callback = NULL;
706        void* callbackPContext;
707        SLuint32 events;
708
709        object_lock_exclusive(&ap->mObject);
710
711        // mark object as prepared; same state is used for successful or unsuccessful prepare
712        assert(ap->mAndroidObjState == ANDROID_PREPARING);
713        ap->mAndroidObjState = ANDROID_READY;
714
715        if (PLAYER_SUCCESS == data1) {
716            // Most of successful prepare completion for ap->mAPlayer
717            // is handled by GenericPlayer and its subclasses.
718        } else {
719            // SfPlayer prepare() failed prefetching, there is no event in SLPrefetchStatus to
720            //  indicate a prefetch error, so we signal it by sending simultaneously two events:
721            //  - SL_PREFETCHEVENT_FILLLEVELCHANGE with a level of 0
722            //  - SL_PREFETCHEVENT_STATUSCHANGE with a status of SL_PREFETCHSTATUS_UNDERFLOW
723            SL_LOGE(ERROR_PLAYER_PREFETCH_d, data1);
724            if (IsInterfaceInitialized(&(ap->mObject), MPH_PREFETCHSTATUS)) {
725                ap->mPrefetchStatus.mLevel = 0;
726                ap->mPrefetchStatus.mStatus = SL_PREFETCHSTATUS_UNDERFLOW;
727                if (!(~ap->mPrefetchStatus.mCallbackEventsMask &
728                        (SL_PREFETCHEVENT_FILLLEVELCHANGE | SL_PREFETCHEVENT_STATUSCHANGE))) {
729                    callback = ap->mPrefetchStatus.mCallback;
730                    callbackPContext = ap->mPrefetchStatus.mContext;
731                    events = SL_PREFETCHEVENT_FILLLEVELCHANGE | SL_PREFETCHEVENT_STATUSCHANGE;
732                }
733            }
734        }
735
736        object_unlock_exclusive(&ap->mObject);
737
738        // callback with no lock held
739        if (NULL != callback) {
740            (*callback)(&ap->mPrefetchStatus.mItf, callbackPContext, events);
741        }
742
743    }
744    break;
745
746    case android::GenericPlayer::kEventPrefetchFillLevelUpdate : {
747        if (!IsInterfaceInitialized(&(ap->mObject), MPH_PREFETCHSTATUS)) {
748            break;
749        }
750        slPrefetchCallback callback = NULL;
751        void* callbackPContext = NULL;
752
753        // SLPrefetchStatusItf callback or no callback?
754        interface_lock_exclusive(&ap->mPrefetchStatus);
755        if (ap->mPrefetchStatus.mCallbackEventsMask & SL_PREFETCHEVENT_FILLLEVELCHANGE) {
756            callback = ap->mPrefetchStatus.mCallback;
757            callbackPContext = ap->mPrefetchStatus.mContext;
758        }
759        ap->mPrefetchStatus.mLevel = (SLpermille)data1;
760        interface_unlock_exclusive(&ap->mPrefetchStatus);
761
762        // callback with no lock held
763        if (NULL != callback) {
764            (*callback)(&ap->mPrefetchStatus.mItf, callbackPContext,
765                    SL_PREFETCHEVENT_FILLLEVELCHANGE);
766        }
767    }
768    break;
769
770    case android::GenericPlayer::kEventPrefetchStatusChange: {
771        if (!IsInterfaceInitialized(&(ap->mObject), MPH_PREFETCHSTATUS)) {
772            break;
773        }
774        slPrefetchCallback callback = NULL;
775        void* callbackPContext = NULL;
776
777        // SLPrefetchStatusItf callback or no callback?
778        object_lock_exclusive(&ap->mObject);
779        if (ap->mPrefetchStatus.mCallbackEventsMask & SL_PREFETCHEVENT_STATUSCHANGE) {
780            callback = ap->mPrefetchStatus.mCallback;
781            callbackPContext = ap->mPrefetchStatus.mContext;
782        }
783        if (data1 >= android::kStatusIntermediate) {
784            ap->mPrefetchStatus.mStatus = SL_PREFETCHSTATUS_SUFFICIENTDATA;
785        } else if (data1 < android::kStatusIntermediate) {
786            ap->mPrefetchStatus.mStatus = SL_PREFETCHSTATUS_UNDERFLOW;
787        }
788        object_unlock_exclusive(&ap->mObject);
789
790        // callback with no lock held
791        if (NULL != callback) {
792            (*callback)(&ap->mPrefetchStatus.mItf, callbackPContext, SL_PREFETCHEVENT_STATUSCHANGE);
793        }
794        }
795        break;
796
797    case android::GenericPlayer::kEventEndOfStream: {
798        audioPlayer_dispatch_headAtEnd_lockPlay(ap, true /*set state to paused?*/, true);
799        if ((ap->mAudioTrack != 0) && (!ap->mSeek.mLoopEnabled)) {
800            ap->mAudioTrack->stop();
801        }
802        }
803        break;
804
805    case android::GenericPlayer::kEventChannelCount: {
806        object_lock_exclusive(&ap->mObject);
807        if (UNKNOWN_NUMCHANNELS == ap->mNumChannels && UNKNOWN_NUMCHANNELS != data1) {
808            ap->mNumChannels = data1;
809            android_audioPlayer_volumeUpdate(ap);
810        }
811        object_unlock_exclusive(&ap->mObject);
812        }
813        break;
814
815    case android::GenericPlayer::kEventPlay: {
816        slPlayCallback callback = NULL;
817        void* callbackPContext = NULL;
818
819        interface_lock_shared(&ap->mPlay);
820        callback = ap->mPlay.mCallback;
821        callbackPContext = ap->mPlay.mContext;
822        interface_unlock_shared(&ap->mPlay);
823
824        if (NULL != callback) {
825            SLuint32 event = (SLuint32) data1;  // SL_PLAYEVENT_HEAD*
826#ifndef USE_ASYNCHRONOUS_PLAY_CALLBACK
827            // synchronous callback requires a synchronous GetPosition implementation
828            (*callback)(&ap->mPlay.mItf, callbackPContext, event);
829#else
830            // asynchronous callback works with any GetPosition implementation
831            SLresult result = EnqueueAsyncCallback_ppi(ap, callback, &ap->mPlay.mItf,
832                    callbackPContext, event);
833            if (SL_RESULT_SUCCESS != result) {
834                LOGW("Callback %p(%p, %p, 0x%x) dropped", callback,
835                        &ap->mPlay.mItf, callbackPContext, event);
836            }
837#endif
838        }
839        }
840        break;
841
842      case android::GenericPlayer::kEventErrorAfterPrepare: {
843        SL_LOGV("kEventErrorAfterPrepare");
844
845        // assume no callback
846        slPrefetchCallback callback = NULL;
847        void* callbackPContext = NULL;
848
849        object_lock_exclusive(&ap->mObject);
850        if (IsInterfaceInitialized(&ap->mObject, MPH_PREFETCHSTATUS)) {
851            ap->mPrefetchStatus.mLevel = 0;
852            ap->mPrefetchStatus.mStatus = SL_PREFETCHSTATUS_UNDERFLOW;
853            if (!(~ap->mPrefetchStatus.mCallbackEventsMask &
854                    (SL_PREFETCHEVENT_FILLLEVELCHANGE | SL_PREFETCHEVENT_STATUSCHANGE))) {
855                callback = ap->mPrefetchStatus.mCallback;
856                callbackPContext = ap->mPrefetchStatus.mContext;
857            }
858        }
859        object_unlock_exclusive(&ap->mObject);
860
861        // FIXME there's interesting information in data1, but no API to convey it to client
862        SL_LOGE("Error after prepare: %d", data1);
863
864        // callback with no lock held
865        if (NULL != callback) {
866            (*callback)(&ap->mPrefetchStatus.mItf, callbackPContext,
867                    SL_PREFETCHEVENT_FILLLEVELCHANGE | SL_PREFETCHEVENT_STATUSCHANGE);
868        }
869
870      }
871      break;
872
873    case android::GenericPlayer::kEventHasVideoSize:
874        //SL_LOGW("Unexpected kEventHasVideoSize");
875        break;
876
877    default:
878        break;
879    }
880
881    ap->mCallbackProtector->exitCb();
882}
883
884
885//-----------------------------------------------------------------------------
886SLresult android_audioPlayer_checkSourceSink(CAudioPlayer *pAudioPlayer)
887{
888    // verify that the locator types for the source / sink combination is supported
889    pAudioPlayer->mAndroidObjType = audioPlayer_getAndroidObjectTypeForSourceSink(pAudioPlayer);
890    if (INVALID_TYPE == pAudioPlayer->mAndroidObjType) {
891        return SL_RESULT_PARAMETER_INVALID;
892    }
893
894    const SLDataSource *pAudioSrc = &pAudioPlayer->mDataSource.u.mSource;
895    const SLDataSink *pAudioSnk = &pAudioPlayer->mDataSink.u.mSink;
896
897    // format check:
898    const SLuint32 sourceLocatorType = *(SLuint32 *)pAudioSrc->pLocator;
899    const SLuint32 sinkLocatorType = *(SLuint32 *)pAudioSnk->pLocator;
900    const SLuint32 sourceFormatType = *(SLuint32 *)pAudioSrc->pFormat;
901    const SLuint32 sinkFormatType = *(SLuint32 *)pAudioSnk->pFormat;
902
903    switch (sourceLocatorType) {
904    //------------------
905    //   Buffer Queues
906    case SL_DATALOCATOR_BUFFERQUEUE:
907    case SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE:
908        {
909        SLDataLocator_BufferQueue *dl_bq =  (SLDataLocator_BufferQueue *) pAudioSrc->pLocator;
910
911        // Buffer format
912        switch (sourceFormatType) {
913        //     currently only PCM buffer queues are supported,
914        case SL_DATAFORMAT_PCM: {
915            SLDataFormat_PCM *df_pcm = (SLDataFormat_PCM *) pAudioSrc->pFormat;
916            switch (df_pcm->numChannels) {
917            case 1:
918            case 2:
919                break;
920            default:
921                // this should have already been rejected by checkDataFormat
922                SL_LOGE("Cannot create audio player: unsupported " \
923                    "PCM data source with %u channels", (unsigned) df_pcm->numChannels);
924                return SL_RESULT_CONTENT_UNSUPPORTED;
925            }
926            switch (df_pcm->samplesPerSec) {
927            case SL_SAMPLINGRATE_8:
928            case SL_SAMPLINGRATE_11_025:
929            case SL_SAMPLINGRATE_12:
930            case SL_SAMPLINGRATE_16:
931            case SL_SAMPLINGRATE_22_05:
932            case SL_SAMPLINGRATE_24:
933            case SL_SAMPLINGRATE_32:
934            case SL_SAMPLINGRATE_44_1:
935            case SL_SAMPLINGRATE_48:
936                break;
937            case SL_SAMPLINGRATE_64:
938            case SL_SAMPLINGRATE_88_2:
939            case SL_SAMPLINGRATE_96:
940            case SL_SAMPLINGRATE_192:
941            default:
942                SL_LOGE("Cannot create audio player: unsupported sample rate %u milliHz",
943                    (unsigned) df_pcm->samplesPerSec);
944                return SL_RESULT_CONTENT_UNSUPPORTED;
945            }
946            switch (df_pcm->bitsPerSample) {
947            case SL_PCMSAMPLEFORMAT_FIXED_8:
948            case SL_PCMSAMPLEFORMAT_FIXED_16:
949                break;
950                // others
951            default:
952                // this should have already been rejected by checkDataFormat
953                SL_LOGE("Cannot create audio player: unsupported sample bit depth %u",
954                        (SLuint32)df_pcm->bitsPerSample);
955                return SL_RESULT_CONTENT_UNSUPPORTED;
956            }
957            switch (df_pcm->containerSize) {
958            case 8:
959            case 16:
960                break;
961                // others
962            default:
963                SL_LOGE("Cannot create audio player: unsupported container size %u",
964                    (unsigned) df_pcm->containerSize);
965                return SL_RESULT_CONTENT_UNSUPPORTED;
966            }
967            // df_pcm->channelMask: the earlier platform-independent check and the
968            //     upcoming check by sles_to_android_channelMaskOut are sufficient
969            switch (df_pcm->endianness) {
970            case SL_BYTEORDER_LITTLEENDIAN:
971                break;
972            case SL_BYTEORDER_BIGENDIAN:
973                SL_LOGE("Cannot create audio player: unsupported big-endian byte order");
974                return SL_RESULT_CONTENT_UNSUPPORTED;
975                // native is proposed but not yet in spec
976            default:
977                SL_LOGE("Cannot create audio player: unsupported byte order %u",
978                    (unsigned) df_pcm->endianness);
979                return SL_RESULT_CONTENT_UNSUPPORTED;
980            }
981            } //case SL_DATAFORMAT_PCM
982            break;
983        case SL_DATAFORMAT_MIME:
984        case XA_DATAFORMAT_RAWIMAGE:
985            SL_LOGE("Cannot create audio player with buffer queue data source "
986                "without SL_DATAFORMAT_PCM format");
987            return SL_RESULT_CONTENT_UNSUPPORTED;
988        default:
989            // invalid data format is detected earlier
990            assert(false);
991            return SL_RESULT_INTERNAL_ERROR;
992        } // switch (sourceFormatType)
993        } // case SL_DATALOCATOR_BUFFERQUEUE or SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE
994        break;
995    //------------------
996    //   URI
997    case SL_DATALOCATOR_URI:
998        {
999        SLDataLocator_URI *dl_uri =  (SLDataLocator_URI *) pAudioSrc->pLocator;
1000        if (NULL == dl_uri->URI) {
1001            return SL_RESULT_PARAMETER_INVALID;
1002        }
1003        // URI format
1004        switch (sourceFormatType) {
1005        case SL_DATAFORMAT_MIME:
1006            break;
1007        case SL_DATAFORMAT_PCM:
1008        case XA_DATAFORMAT_RAWIMAGE:
1009            SL_LOGE("Cannot create audio player with SL_DATALOCATOR_URI data source without "
1010                "SL_DATAFORMAT_MIME format");
1011            return SL_RESULT_CONTENT_UNSUPPORTED;
1012        } // switch (sourceFormatType)
1013        // decoding format check
1014        if ((sinkLocatorType != SL_DATALOCATOR_OUTPUTMIX) &&
1015                !audioPlayer_isSupportedNonOutputMixSink(pAudioSnk)) {
1016            return SL_RESULT_CONTENT_UNSUPPORTED;
1017        }
1018        } // case SL_DATALOCATOR_URI
1019        break;
1020    //------------------
1021    //   File Descriptor
1022    case SL_DATALOCATOR_ANDROIDFD:
1023        {
1024        // fd is already non null
1025        switch (sourceFormatType) {
1026        case SL_DATAFORMAT_MIME:
1027            break;
1028        case SL_DATAFORMAT_PCM:
1029            // FIXME implement
1030            SL_LOGD("[ FIXME implement PCM FD data sources ]");
1031            break;
1032        case XA_DATAFORMAT_RAWIMAGE:
1033            SL_LOGE("Cannot create audio player with SL_DATALOCATOR_ANDROIDFD data source "
1034                "without SL_DATAFORMAT_MIME or SL_DATAFORMAT_PCM format");
1035            return SL_RESULT_CONTENT_UNSUPPORTED;
1036        default:
1037            // invalid data format is detected earlier
1038            assert(false);
1039            return SL_RESULT_INTERNAL_ERROR;
1040        } // switch (sourceFormatType)
1041        if ((sinkLocatorType != SL_DATALOCATOR_OUTPUTMIX) &&
1042                !audioPlayer_isSupportedNonOutputMixSink(pAudioSnk)) {
1043            return SL_RESULT_CONTENT_UNSUPPORTED;
1044        }
1045        } // case SL_DATALOCATOR_ANDROIDFD
1046        break;
1047    //------------------
1048    //   Stream
1049    case SL_DATALOCATOR_ANDROIDBUFFERQUEUE:
1050    {
1051        switch (sourceFormatType) {
1052        case SL_DATAFORMAT_MIME:
1053        {
1054            SLDataFormat_MIME *df_mime = (SLDataFormat_MIME *) pAudioSrc->pFormat;
1055            if (NULL == df_mime) {
1056                SL_LOGE("MIME type null invalid");
1057                return SL_RESULT_CONTENT_UNSUPPORTED;
1058            }
1059            SL_LOGD("source MIME is %s", (char*)df_mime->mimeType);
1060            switch(df_mime->containerType) {
1061            case SL_CONTAINERTYPE_MPEG_TS:
1062                if (strcasecmp((char*)df_mime->mimeType, (const char *)XA_ANDROID_MIME_MP2TS)) {
1063                    SL_LOGE("Invalid MIME (%s) for container SL_CONTAINERTYPE_MPEG_TS, expects %s",
1064                            (char*)df_mime->mimeType, XA_ANDROID_MIME_MP2TS);
1065                    return SL_RESULT_CONTENT_UNSUPPORTED;
1066                }
1067                break;
1068            case SL_CONTAINERTYPE_RAW:
1069            case SL_CONTAINERTYPE_AAC:
1070                if (strcasecmp((char*)df_mime->mimeType, (const char *)SL_ANDROID_MIME_AACADTS) &&
1071                        strcasecmp((char*)df_mime->mimeType,
1072                                ANDROID_MIME_AACADTS_ANDROID_FRAMEWORK)) {
1073                    SL_LOGE("Invalid MIME (%s) for container type %d, expects %s",
1074                            (char*)df_mime->mimeType, df_mime->containerType,
1075                            SL_ANDROID_MIME_AACADTS);
1076                    return SL_RESULT_CONTENT_UNSUPPORTED;
1077                }
1078                break;
1079            default:
1080                SL_LOGE("Cannot create player with SL_DATALOCATOR_ANDROIDBUFFERQUEUE data source "
1081                                        "that is not fed MPEG-2 TS data or AAC ADTS data");
1082                return SL_RESULT_CONTENT_UNSUPPORTED;
1083            }
1084        }
1085        break;
1086        default:
1087            SL_LOGE("Cannot create player with SL_DATALOCATOR_ANDROIDBUFFERQUEUE data source "
1088                    "without SL_DATAFORMAT_MIME format");
1089            return SL_RESULT_CONTENT_UNSUPPORTED;
1090        }
1091    }
1092    break; // case SL_DATALOCATOR_ANDROIDBUFFERQUEUE
1093    //------------------
1094    //   Address
1095    case SL_DATALOCATOR_ADDRESS:
1096    case SL_DATALOCATOR_IODEVICE:
1097    case SL_DATALOCATOR_OUTPUTMIX:
1098    case XA_DATALOCATOR_NATIVEDISPLAY:
1099    case SL_DATALOCATOR_MIDIBUFFERQUEUE:
1100        SL_LOGE("Cannot create audio player with data locator type 0x%x",
1101                (unsigned) sourceLocatorType);
1102        return SL_RESULT_CONTENT_UNSUPPORTED;
1103    default:
1104        SL_LOGE("Cannot create audio player with invalid data locator type 0x%x",
1105                (unsigned) sourceLocatorType);
1106        return SL_RESULT_PARAMETER_INVALID;
1107    }// switch (locatorType)
1108
1109    return SL_RESULT_SUCCESS;
1110}
1111
1112
1113//-----------------------------------------------------------------------------
1114// Callback associated with an AudioTrack of an SL ES AudioPlayer that gets its data
1115// from a buffer queue. This will not be called once the AudioTrack has been destroyed.
1116static void audioTrack_callBack_pullFromBuffQueue(int event, void* user, void *info) {
1117    CAudioPlayer *ap = (CAudioPlayer *)user;
1118
1119    if (!android::CallbackProtector::enterCbIfOk(ap->mCallbackProtector)) {
1120        // it is not safe to enter the callback (the track is about to go away)
1121        return;
1122    }
1123
1124    void * callbackPContext = NULL;
1125    switch(event) {
1126
1127    case android::AudioTrack::EVENT_MORE_DATA: {
1128        //SL_LOGV("received event EVENT_MORE_DATA from AudioTrack TID=%d", gettid());
1129        slBufferQueueCallback callback = NULL;
1130        slPrefetchCallback prefetchCallback = NULL;
1131        void *prefetchContext = NULL;
1132        SLuint32 prefetchEvents = SL_PREFETCHEVENT_NONE;
1133        android::AudioTrack::Buffer* pBuff = (android::AudioTrack::Buffer*)info;
1134
1135        // retrieve data from the buffer queue
1136        interface_lock_exclusive(&ap->mBufferQueue);
1137
1138        if (ap->mBufferQueue.mState.count != 0) {
1139            //SL_LOGV("nbBuffers in queue = %u",ap->mBufferQueue.mState.count);
1140            assert(ap->mBufferQueue.mFront != ap->mBufferQueue.mRear);
1141
1142            BufferHeader *oldFront = ap->mBufferQueue.mFront;
1143            BufferHeader *newFront = &oldFront[1];
1144
1145            // declared as void * because this code supports both 8-bit and 16-bit PCM data
1146            void *pSrc = (char *)oldFront->mBuffer + ap->mBufferQueue.mSizeConsumed;
1147            if (ap->mBufferQueue.mSizeConsumed + pBuff->size < oldFront->mSize) {
1148                // can't consume the whole or rest of the buffer in one shot
1149                ap->mBufferQueue.mSizeConsumed += pBuff->size;
1150                // leave pBuff->size untouched
1151                // consume data
1152                // FIXME can we avoid holding the lock during the copy?
1153                memcpy (pBuff->raw, pSrc, pBuff->size);
1154            } else {
1155                // finish consuming the buffer or consume the buffer in one shot
1156                pBuff->size = oldFront->mSize - ap->mBufferQueue.mSizeConsumed;
1157                ap->mBufferQueue.mSizeConsumed = 0;
1158
1159                if (newFront ==
1160                        &ap->mBufferQueue.mArray
1161                            [ap->mBufferQueue.mNumBuffers + 1])
1162                {
1163                    newFront = ap->mBufferQueue.mArray;
1164                }
1165                ap->mBufferQueue.mFront = newFront;
1166
1167                ap->mBufferQueue.mState.count--;
1168                ap->mBufferQueue.mState.playIndex++;
1169
1170                // consume data
1171                // FIXME can we avoid holding the lock during the copy?
1172                memcpy (pBuff->raw, pSrc, pBuff->size);
1173
1174                // data has been consumed, and the buffer queue state has been updated
1175                // we will notify the client if applicable
1176                callback = ap->mBufferQueue.mCallback;
1177                // save callback data
1178                callbackPContext = ap->mBufferQueue.mContext;
1179            }
1180        } else { // empty queue
1181            // signal no data available
1182            pBuff->size = 0;
1183
1184            // signal we're at the end of the content, but don't pause (see note in function)
1185            audioPlayer_dispatch_headAtEnd_lockPlay(ap, false /*set state to paused?*/, false);
1186
1187            // signal underflow to prefetch status itf
1188            if (IsInterfaceInitialized(&(ap->mObject), MPH_PREFETCHSTATUS)) {
1189                ap->mPrefetchStatus.mStatus = SL_PREFETCHSTATUS_UNDERFLOW;
1190                ap->mPrefetchStatus.mLevel = 0;
1191                // callback or no callback?
1192                prefetchEvents = ap->mPrefetchStatus.mCallbackEventsMask &
1193                        (SL_PREFETCHEVENT_STATUSCHANGE | SL_PREFETCHEVENT_FILLLEVELCHANGE);
1194                if (SL_PREFETCHEVENT_NONE != prefetchEvents) {
1195                    prefetchCallback = ap->mPrefetchStatus.mCallback;
1196                    prefetchContext  = ap->mPrefetchStatus.mContext;
1197                }
1198            }
1199
1200            // stop the track so it restarts playing faster when new data is enqueued
1201            ap->mAudioTrack->stop();
1202        }
1203        interface_unlock_exclusive(&ap->mBufferQueue);
1204
1205        // notify client
1206        if (NULL != prefetchCallback) {
1207            assert(SL_PREFETCHEVENT_NONE != prefetchEvents);
1208            // spec requires separate callbacks for each event
1209            if (prefetchEvents & SL_PREFETCHEVENT_STATUSCHANGE) {
1210                (*prefetchCallback)(&ap->mPrefetchStatus.mItf, prefetchContext,
1211                        SL_PREFETCHEVENT_STATUSCHANGE);
1212            }
1213            if (prefetchEvents & SL_PREFETCHEVENT_FILLLEVELCHANGE) {
1214                (*prefetchCallback)(&ap->mPrefetchStatus.mItf, prefetchContext,
1215                        SL_PREFETCHEVENT_FILLLEVELCHANGE);
1216            }
1217        }
1218        if (NULL != callback) {
1219            (*callback)(&ap->mBufferQueue.mItf, callbackPContext);
1220        }
1221    }
1222    break;
1223
1224    case android::AudioTrack::EVENT_MARKER:
1225        //SL_LOGI("received event EVENT_MARKER from AudioTrack");
1226        audioTrack_handleMarker_lockPlay(ap);
1227        break;
1228
1229    case android::AudioTrack::EVENT_NEW_POS:
1230        //SL_LOGI("received event EVENT_NEW_POS from AudioTrack");
1231        audioTrack_handleNewPos_lockPlay(ap);
1232        break;
1233
1234    case android::AudioTrack::EVENT_UNDERRUN:
1235        //SL_LOGI("received event EVENT_UNDERRUN from AudioTrack");
1236        audioTrack_handleUnderrun_lockPlay(ap);
1237        break;
1238
1239    case android::AudioTrack::EVENT_BUFFER_END:
1240    case android::AudioTrack::EVENT_LOOP_END:
1241        // These are unexpected so fall through
1242    default:
1243        // FIXME where does the notification of SL_PLAYEVENT_HEADMOVING fit?
1244        SL_LOGE("Encountered unknown AudioTrack event %d for CAudioPlayer %p", event,
1245                (CAudioPlayer *)user);
1246        break;
1247    }
1248
1249    ap->mCallbackProtector->exitCb();
1250}
1251
1252
1253//-----------------------------------------------------------------------------
1254SLresult android_audioPlayer_create(CAudioPlayer *pAudioPlayer) {
1255
1256    SLresult result = SL_RESULT_SUCCESS;
1257    // pAudioPlayer->mAndroidObjType has been set in audioPlayer_getAndroidObjectTypeForSourceSink()
1258    if (INVALID_TYPE == pAudioPlayer->mAndroidObjType) {
1259        audioPlayer_setInvalid(pAudioPlayer);
1260        result = SL_RESULT_PARAMETER_INVALID;
1261    } else {
1262
1263        // These initializations are in the same order as the field declarations in classes.h
1264
1265        // FIXME Consolidate initializations (many of these already in IEngine_CreateAudioPlayer)
1266        // mAndroidObjType: see above comment
1267        pAudioPlayer->mAndroidObjState = ANDROID_UNINITIALIZED;
1268        pAudioPlayer->mSessionId = android::AudioSystem::newAudioSessionId();
1269        pAudioPlayer->mStreamType = ANDROID_DEFAULT_OUTPUT_STREAM_TYPE;
1270
1271        // mAudioTrack
1272        pAudioPlayer->mCallbackProtector = new android::CallbackProtector();
1273        // mAPLayer
1274        // mAuxEffect
1275
1276        pAudioPlayer->mAuxSendLevel = 0;
1277        pAudioPlayer->mAmplFromDirectLevel = 1.0f; // matches initial mDirectLevel value
1278        pAudioPlayer->mDeferredStart = false;
1279
1280        // Already initialized in IEngine_CreateAudioPlayer, to be consolidated
1281        pAudioPlayer->mDirectLevel = 0; // no attenuation
1282
1283        // This section re-initializes interface-specific fields that
1284        // can be set or used regardless of whether the interface is
1285        // exposed on the AudioPlayer or not
1286
1287        // Only AudioTrack supports a non-trivial playback rate
1288        switch (pAudioPlayer->mAndroidObjType) {
1289        case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
1290            pAudioPlayer->mPlaybackRate.mMinRate = AUDIOTRACK_MIN_PLAYBACKRATE_PERMILLE;
1291            pAudioPlayer->mPlaybackRate.mMaxRate = AUDIOTRACK_MAX_PLAYBACKRATE_PERMILLE;
1292            break;
1293        default:
1294            // use the default range
1295            break;
1296        }
1297
1298    }
1299
1300    return result;
1301}
1302
1303
1304//-----------------------------------------------------------------------------
1305SLresult android_audioPlayer_setConfig(CAudioPlayer *ap, const SLchar *configKey,
1306        const void *pConfigValue, SLuint32 valueSize) {
1307
1308    SLresult result;
1309
1310    assert(NULL != ap && NULL != configKey && NULL != pConfigValue);
1311    if(strcmp((const char*)configKey, (const char*)SL_ANDROID_KEY_STREAM_TYPE) == 0) {
1312
1313        // stream type
1314        if (KEY_STREAM_TYPE_PARAMSIZE > valueSize) {
1315            SL_LOGE(ERROR_CONFIG_VALUESIZE_TOO_LOW);
1316            result = SL_RESULT_BUFFER_INSUFFICIENT;
1317        } else {
1318            result = audioPlayer_setStreamType(ap, *(SLuint32*)pConfigValue);
1319        }
1320
1321    } else {
1322        SL_LOGE(ERROR_CONFIG_UNKNOWN_KEY);
1323        result = SL_RESULT_PARAMETER_INVALID;
1324    }
1325
1326    return result;
1327}
1328
1329
1330//-----------------------------------------------------------------------------
1331SLresult android_audioPlayer_getConfig(CAudioPlayer* ap, const SLchar *configKey,
1332        SLuint32* pValueSize, void *pConfigValue) {
1333
1334    SLresult result;
1335
1336    assert(NULL != ap && NULL != configKey && NULL != pValueSize);
1337    if(strcmp((const char*)configKey, (const char*)SL_ANDROID_KEY_STREAM_TYPE) == 0) {
1338
1339        // stream type
1340        if (NULL == pConfigValue) {
1341            result = SL_RESULT_SUCCESS;
1342        } else if (KEY_STREAM_TYPE_PARAMSIZE > *pValueSize) {
1343            SL_LOGE(ERROR_CONFIG_VALUESIZE_TOO_LOW);
1344            result = SL_RESULT_BUFFER_INSUFFICIENT;
1345        } else {
1346            result = audioPlayer_getStreamType(ap, (SLint32*)pConfigValue);
1347        }
1348        *pValueSize = KEY_STREAM_TYPE_PARAMSIZE;
1349
1350    } else {
1351        SL_LOGE(ERROR_CONFIG_UNKNOWN_KEY);
1352        result = SL_RESULT_PARAMETER_INVALID;
1353    }
1354
1355    return result;
1356}
1357
1358
1359//-----------------------------------------------------------------------------
1360// FIXME abstract out the diff between CMediaPlayer and CAudioPlayer
1361SLresult android_audioPlayer_realize(CAudioPlayer *pAudioPlayer, SLboolean async) {
1362
1363    SLresult result = SL_RESULT_SUCCESS;
1364    SL_LOGV("Realize pAudioPlayer=%p", pAudioPlayer);
1365
1366    AudioPlayback_Parameters app;
1367    app.sessionId = pAudioPlayer->mSessionId;
1368    app.streamType = pAudioPlayer->mStreamType;
1369
1370    switch (pAudioPlayer->mAndroidObjType) {
1371
1372    //-----------------------------------
1373    // AudioTrack
1374    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
1375        {
1376        // initialize platform-specific CAudioPlayer fields
1377
1378        SLDataLocator_BufferQueue *dl_bq =  (SLDataLocator_BufferQueue *)
1379                pAudioPlayer->mDynamicSource.mDataSource;
1380        SLDataFormat_PCM *df_pcm = (SLDataFormat_PCM *)
1381                pAudioPlayer->mDynamicSource.mDataSource->pFormat;
1382
1383        uint32_t sampleRate = sles_to_android_sampleRate(df_pcm->samplesPerSec);
1384
1385        pAudioPlayer->mAudioTrack = new android::AudioTrackProxy(new android::AudioTrack(
1386                pAudioPlayer->mStreamType,                           // streamType
1387                sampleRate,                                          // sampleRate
1388                sles_to_android_sampleFormat(df_pcm->bitsPerSample), // format
1389                sles_to_android_channelMaskOut(df_pcm->numChannels, df_pcm->channelMask),
1390                                                                     //channel mask
1391                0,                                                   // frameCount (here min)
1392                0,                                                   // flags
1393                audioTrack_callBack_pullFromBuffQueue,               // callback
1394                (void *) pAudioPlayer,                               // user
1395                0      // FIXME find appropriate frame count         // notificationFrame
1396                , pAudioPlayer->mSessionId
1397                ));
1398        android::status_t status = pAudioPlayer->mAudioTrack->initCheck();
1399        if (status != android::NO_ERROR) {
1400            SL_LOGE("AudioTrack::initCheck status %u", status);
1401            result = SL_RESULT_CONTENT_UNSUPPORTED;
1402            pAudioPlayer->mAudioTrack.clear();
1403            return result;
1404        }
1405
1406        // initialize platform-independent CAudioPlayer fields
1407
1408        pAudioPlayer->mNumChannels = df_pcm->numChannels;
1409        pAudioPlayer->mSampleRateMilliHz = df_pcm->samplesPerSec; // Note: bad field name in SL ES
1410
1411        // This use case does not have a separate "prepare" step
1412        pAudioPlayer->mAndroidObjState = ANDROID_READY;
1413        }
1414        break;
1415
1416    //-----------------------------------
1417    // MediaPlayer
1418    case AUDIOPLAYER_FROM_URIFD: {
1419        pAudioPlayer->mAPlayer = new android::LocAVPlayer(&app, false /*hasVideo*/);
1420        pAudioPlayer->mAPlayer->init(sfplayer_handlePrefetchEvent,
1421                        (void*)pAudioPlayer /*notifUSer*/);
1422
1423        switch (pAudioPlayer->mDataSource.mLocator.mLocatorType) {
1424            case SL_DATALOCATOR_URI: {
1425                // The legacy implementation ran Stagefright within the application process, and
1426                // so allowed local pathnames specified by URI that were openable by
1427                // the application but were not openable by mediaserver.
1428                // The current implementation runs Stagefright (mostly) within mediaserver,
1429                // which runs as a different UID and likely a different current working directory.
1430                // For backwards compatibility with any applications which may have relied on the
1431                // previous behavior, we convert an openable file URI into an FD.
1432                // Note that unlike SL_DATALOCATOR_ANDROIDFD, this FD is owned by us
1433                // and so we close it as soon as we've passed it (via Binder dup) to mediaserver.
1434                const char *uri = (const char *)pAudioPlayer->mDataSource.mLocator.mURI.URI;
1435                if (!isDistantProtocol(uri)) {
1436                    // don't touch the original uri, we may need it later
1437                    const char *pathname = uri;
1438                    // skip over an optional leading file:// prefix
1439                    if (!strncasecmp(pathname, "file://", 7)) {
1440                        pathname += 7;
1441                    }
1442                    // attempt to open it as a file using the application's credentials
1443                    int fd = ::open(pathname, O_RDONLY);
1444                    if (fd >= 0) {
1445                        // if open is successful, then check to see if it's a regular file
1446                        struct stat statbuf;
1447                        if (!::fstat(fd, &statbuf) && S_ISREG(statbuf.st_mode)) {
1448                            // treat similarly to an FD data locator, but
1449                            // let setDataSource take responsibility for closing fd
1450                            pAudioPlayer->mAPlayer->setDataSource(fd, 0, statbuf.st_size, true);
1451                            break;
1452                        }
1453                        // we were able to open it, but it's not a file, so let mediaserver try
1454                        (void) ::close(fd);
1455                    }
1456                }
1457                // if either the URI didn't look like a file, or open failed, or not a file
1458                pAudioPlayer->mAPlayer->setDataSource(uri);
1459                } break;
1460            case SL_DATALOCATOR_ANDROIDFD: {
1461                int64_t offset = (int64_t)pAudioPlayer->mDataSource.mLocator.mFD.offset;
1462                pAudioPlayer->mAPlayer->setDataSource(
1463                        (int)pAudioPlayer->mDataSource.mLocator.mFD.fd,
1464                        offset == SL_DATALOCATOR_ANDROIDFD_USE_FILE_SIZE ?
1465                                (int64_t)PLAYER_FD_FIND_FILE_SIZE : offset,
1466                        (int64_t)pAudioPlayer->mDataSource.mLocator.mFD.length);
1467                }
1468                break;
1469            default:
1470                SL_LOGE(ERROR_PLAYERREALIZE_UNKNOWN_DATASOURCE_LOCATOR);
1471                break;
1472        }
1473
1474        }
1475        break;
1476
1477    //-----------------------------------
1478    // StreamPlayer
1479    case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE: {
1480        android::StreamPlayer* splr = new android::StreamPlayer(&app, false /*hasVideo*/,
1481                &pAudioPlayer->mAndroidBufferQueue, pAudioPlayer->mCallbackProtector);
1482        pAudioPlayer->mAPlayer = splr;
1483        splr->init(sfplayer_handlePrefetchEvent, (void*)pAudioPlayer);
1484        }
1485        break;
1486
1487    //-----------------------------------
1488    // AudioToCbRenderer
1489    case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE: {
1490        android::AudioToCbRenderer* decoder = new android::AudioToCbRenderer(&app);
1491        pAudioPlayer->mAPlayer = decoder;
1492        // configures the callback for the sink buffer queue
1493        decoder->setDataPushListener(adecoder_writeToBufferQueue, pAudioPlayer);
1494        // configures the callback for the notifications coming from the SF code
1495        decoder->init(sfplayer_handlePrefetchEvent, (void*)pAudioPlayer);
1496
1497        switch (pAudioPlayer->mDataSource.mLocator.mLocatorType) {
1498        case SL_DATALOCATOR_URI:
1499            decoder->setDataSource(
1500                    (const char*)pAudioPlayer->mDataSource.mLocator.mURI.URI);
1501            break;
1502        case SL_DATALOCATOR_ANDROIDFD: {
1503            int64_t offset = (int64_t)pAudioPlayer->mDataSource.mLocator.mFD.offset;
1504            decoder->setDataSource(
1505                    (int)pAudioPlayer->mDataSource.mLocator.mFD.fd,
1506                    offset == SL_DATALOCATOR_ANDROIDFD_USE_FILE_SIZE ?
1507                            (int64_t)PLAYER_FD_FIND_FILE_SIZE : offset,
1508                            (int64_t)pAudioPlayer->mDataSource.mLocator.mFD.length);
1509            }
1510            break;
1511        default:
1512            SL_LOGE(ERROR_PLAYERREALIZE_UNKNOWN_DATASOURCE_LOCATOR);
1513            break;
1514        }
1515
1516        }
1517        break;
1518
1519    //-----------------------------------
1520    // AacBqToPcmCbRenderer
1521    case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE: {
1522        android::AacBqToPcmCbRenderer* bqtobq = new android::AacBqToPcmCbRenderer(&app);
1523        // configures the callback for the sink buffer queue
1524        bqtobq->setDataPushListener(adecoder_writeToBufferQueue, pAudioPlayer);
1525        pAudioPlayer->mAPlayer = bqtobq;
1526        // configures the callback for the notifications coming from the SF code,
1527        // but also implicitly configures the AndroidBufferQueue from which ADTS data is read
1528        pAudioPlayer->mAPlayer->init(sfplayer_handlePrefetchEvent, (void*)pAudioPlayer);
1529        }
1530        break;
1531
1532    //-----------------------------------
1533    default:
1534        SL_LOGE(ERROR_PLAYERREALIZE_UNEXPECTED_OBJECT_TYPE_D, pAudioPlayer->mAndroidObjType);
1535        result = SL_RESULT_INTERNAL_ERROR;
1536        break;
1537    }
1538
1539    // proceed with effect initialization
1540    // initialize EQ
1541    // FIXME use a table of effect descriptors when adding support for more effects
1542    if (memcmp(SL_IID_EQUALIZER, &pAudioPlayer->mEqualizer.mEqDescriptor.type,
1543            sizeof(effect_uuid_t)) == 0) {
1544        SL_LOGV("Need to initialize EQ for AudioPlayer=%p", pAudioPlayer);
1545        android_eq_init(pAudioPlayer->mSessionId, &pAudioPlayer->mEqualizer);
1546    }
1547    // initialize BassBoost
1548    if (memcmp(SL_IID_BASSBOOST, &pAudioPlayer->mBassBoost.mBassBoostDescriptor.type,
1549            sizeof(effect_uuid_t)) == 0) {
1550        SL_LOGV("Need to initialize BassBoost for AudioPlayer=%p", pAudioPlayer);
1551        android_bb_init(pAudioPlayer->mSessionId, &pAudioPlayer->mBassBoost);
1552    }
1553    // initialize Virtualizer
1554    if (memcmp(SL_IID_VIRTUALIZER, &pAudioPlayer->mVirtualizer.mVirtualizerDescriptor.type,
1555               sizeof(effect_uuid_t)) == 0) {
1556        SL_LOGV("Need to initialize Virtualizer for AudioPlayer=%p", pAudioPlayer);
1557        android_virt_init(pAudioPlayer->mSessionId, &pAudioPlayer->mVirtualizer);
1558    }
1559
1560    // initialize EffectSend
1561    // FIXME initialize EffectSend
1562
1563    return result;
1564}
1565
1566
1567//-----------------------------------------------------------------------------
1568/**
1569 * Called with a lock on AudioPlayer, and blocks until safe to destroy
1570 */
1571SLresult android_audioPlayer_preDestroy(CAudioPlayer *pAudioPlayer) {
1572    SL_LOGD("android_audioPlayer_preDestroy(%p)", pAudioPlayer);
1573    SLresult result = SL_RESULT_SUCCESS;
1574
1575  bool disableCallbacksBeforePreDestroy;
1576  switch (pAudioPlayer->mAndroidObjType) {
1577  // Not yet clear why this order is important, but it reduces detected deadlocks
1578  case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1579    disableCallbacksBeforePreDestroy = true;
1580    break;
1581  // Use the old behavior for all other use cases until proven
1582  // case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1583  default:
1584    disableCallbacksBeforePreDestroy = false;
1585    break;
1586  }
1587
1588  if (disableCallbacksBeforePreDestroy) {
1589    object_unlock_exclusive(&pAudioPlayer->mObject);
1590    if (pAudioPlayer->mCallbackProtector != 0) {
1591        pAudioPlayer->mCallbackProtector->requestCbExitAndWait();
1592    }
1593    object_lock_exclusive(&pAudioPlayer->mObject);
1594  }
1595
1596    if (pAudioPlayer->mAPlayer != 0) {
1597        pAudioPlayer->mAPlayer->preDestroy();
1598    }
1599    SL_LOGD("android_audioPlayer_preDestroy(%p) after mAPlayer->preDestroy()", pAudioPlayer);
1600
1601  if (!disableCallbacksBeforePreDestroy) {
1602    object_unlock_exclusive(&pAudioPlayer->mObject);
1603    if (pAudioPlayer->mCallbackProtector != 0) {
1604        pAudioPlayer->mCallbackProtector->requestCbExitAndWait();
1605    }
1606    object_lock_exclusive(&pAudioPlayer->mObject);
1607  }
1608
1609    return result;
1610}
1611
1612
1613//-----------------------------------------------------------------------------
1614SLresult android_audioPlayer_destroy(CAudioPlayer *pAudioPlayer) {
1615    SLresult result = SL_RESULT_SUCCESS;
1616    SL_LOGV("android_audioPlayer_destroy(%p)", pAudioPlayer);
1617    switch (pAudioPlayer->mAndroidObjType) {
1618
1619    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
1620        // We own the audio track for PCM buffer queue players
1621        if (pAudioPlayer->mAudioTrack != 0) {
1622            pAudioPlayer->mAudioTrack->stop();
1623            // Note that there may still be another reference in post-unlock phase of SetPlayState
1624            pAudioPlayer->mAudioTrack.clear();
1625        }
1626        break;
1627
1628    case AUDIOPLAYER_FROM_URIFD:     // intended fall-through
1629    case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:    // intended fall-through
1630    case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE: // intended fall-through
1631    case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1632        pAudioPlayer->mAPlayer.clear();
1633        break;
1634    //-----------------------------------
1635    default:
1636        SL_LOGE(ERROR_PLAYERDESTROY_UNEXPECTED_OBJECT_TYPE_D, pAudioPlayer->mAndroidObjType);
1637        result = SL_RESULT_INTERNAL_ERROR;
1638        break;
1639    }
1640
1641    pAudioPlayer->mCallbackProtector.clear();
1642
1643    // FIXME might not be needed
1644    pAudioPlayer->mAndroidObjType = INVALID_TYPE;
1645
1646    // explicit destructor
1647    pAudioPlayer->mAudioTrack.~sp();
1648    // note that SetPlayState(PLAYING) may still hold a reference
1649    pAudioPlayer->mCallbackProtector.~sp();
1650    pAudioPlayer->mAuxEffect.~sp();
1651    pAudioPlayer->mAPlayer.~sp();
1652
1653    return result;
1654}
1655
1656
1657//-----------------------------------------------------------------------------
1658SLresult android_audioPlayer_setPlaybackRateAndConstraints(CAudioPlayer *ap, SLpermille rate,
1659        SLuint32 constraints) {
1660    SLresult result = SL_RESULT_SUCCESS;
1661    switch(ap->mAndroidObjType) {
1662    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE: {
1663        // these asserts were already checked by the platform-independent layer
1664        assert((AUDIOTRACK_MIN_PLAYBACKRATE_PERMILLE <= rate) &&
1665                (rate <= AUDIOTRACK_MAX_PLAYBACKRATE_PERMILLE));
1666        assert(constraints & SL_RATEPROP_NOPITCHCORAUDIO);
1667        // get the content sample rate
1668        uint32_t contentRate = sles_to_android_sampleRate(ap->mSampleRateMilliHz);
1669        // apply the SL ES playback rate on the AudioTrack as a factor of its content sample rate
1670        if (ap->mAudioTrack != 0) {
1671            ap->mAudioTrack->setSampleRate(contentRate * (rate/1000.0f));
1672        }
1673        }
1674        break;
1675    case AUDIOPLAYER_FROM_URIFD:
1676        assert(rate == 1000);
1677        assert(constraints & SL_RATEPROP_NOPITCHCORAUDIO);
1678        // that was easy
1679        break;
1680
1681    default:
1682        SL_LOGE("Unexpected object type %d", ap->mAndroidObjType);
1683        result = SL_RESULT_FEATURE_UNSUPPORTED;
1684        break;
1685    }
1686    return result;
1687}
1688
1689
1690//-----------------------------------------------------------------------------
1691// precondition
1692//  called with no lock held
1693//  ap != NULL
1694//  pItemCount != NULL
1695SLresult android_audioPlayer_metadata_getItemCount(CAudioPlayer *ap, SLuint32 *pItemCount) {
1696    if (ap->mAPlayer == 0) {
1697        return SL_RESULT_PARAMETER_INVALID;
1698    }
1699    switch(ap->mAndroidObjType) {
1700      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1701      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1702        {
1703            android::AudioSfDecoder* decoder =
1704                    static_cast<android::AudioSfDecoder*>(ap->mAPlayer.get());
1705            *pItemCount = decoder->getPcmFormatKeyCount();
1706        }
1707        break;
1708      default:
1709        *pItemCount = 0;
1710        break;
1711    }
1712    return SL_RESULT_SUCCESS;
1713}
1714
1715
1716//-----------------------------------------------------------------------------
1717// precondition
1718//  called with no lock held
1719//  ap != NULL
1720//  pKeySize != NULL
1721SLresult android_audioPlayer_metadata_getKeySize(CAudioPlayer *ap,
1722        SLuint32 index, SLuint32 *pKeySize) {
1723    if (ap->mAPlayer == 0) {
1724        return SL_RESULT_PARAMETER_INVALID;
1725    }
1726    SLresult res = SL_RESULT_SUCCESS;
1727    switch(ap->mAndroidObjType) {
1728      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1729      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1730        {
1731            android::AudioSfDecoder* decoder =
1732                    static_cast<android::AudioSfDecoder*>(ap->mAPlayer.get());
1733            SLuint32 keyNameSize = 0;
1734            if (!decoder->getPcmFormatKeySize(index, &keyNameSize)) {
1735                res = SL_RESULT_PARAMETER_INVALID;
1736            } else {
1737                // *pKeySize is the size of the region used to store the key name AND
1738                //   the information about the key (size, lang, encoding)
1739                *pKeySize = keyNameSize + sizeof(SLMetadataInfo);
1740            }
1741        }
1742        break;
1743      default:
1744        *pKeySize = 0;
1745        res = SL_RESULT_PARAMETER_INVALID;
1746        break;
1747    }
1748    return res;
1749}
1750
1751
1752//-----------------------------------------------------------------------------
1753// precondition
1754//  called with no lock held
1755//  ap != NULL
1756//  pKey != NULL
1757SLresult android_audioPlayer_metadata_getKey(CAudioPlayer *ap,
1758        SLuint32 index, SLuint32 size, SLMetadataInfo *pKey) {
1759    if (ap->mAPlayer == 0) {
1760        return SL_RESULT_PARAMETER_INVALID;
1761    }
1762    SLresult res = SL_RESULT_SUCCESS;
1763    switch(ap->mAndroidObjType) {
1764      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1765      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1766        {
1767            android::AudioSfDecoder* decoder =
1768                    static_cast<android::AudioSfDecoder*>(ap->mAPlayer.get());
1769            if ((size < sizeof(SLMetadataInfo) ||
1770                    (!decoder->getPcmFormatKeyName(index, size - sizeof(SLMetadataInfo),
1771                            (char*)pKey->data)))) {
1772                res = SL_RESULT_PARAMETER_INVALID;
1773            } else {
1774                // successfully retrieved the key value, update the other fields
1775                pKey->encoding = SL_CHARACTERENCODING_UTF8;
1776                memcpy((char *) pKey->langCountry, "en", 3);
1777                pKey->size = strlen((char*)pKey->data) + 1;
1778            }
1779        }
1780        break;
1781      default:
1782        res = SL_RESULT_PARAMETER_INVALID;
1783        break;
1784    }
1785    return res;
1786}
1787
1788
1789//-----------------------------------------------------------------------------
1790// precondition
1791//  called with no lock held
1792//  ap != NULL
1793//  pValueSize != NULL
1794SLresult android_audioPlayer_metadata_getValueSize(CAudioPlayer *ap,
1795        SLuint32 index, SLuint32 *pValueSize) {
1796    if (ap->mAPlayer == 0) {
1797        return SL_RESULT_PARAMETER_INVALID;
1798    }
1799    SLresult res = SL_RESULT_SUCCESS;
1800    switch(ap->mAndroidObjType) {
1801      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1802      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1803        {
1804            android::AudioSfDecoder* decoder =
1805                    static_cast<android::AudioSfDecoder*>(ap->mAPlayer.get());
1806            SLuint32 valueSize = 0;
1807            if (!decoder->getPcmFormatValueSize(index, &valueSize)) {
1808                res = SL_RESULT_PARAMETER_INVALID;
1809            } else {
1810                // *pValueSize is the size of the region used to store the key value AND
1811                //   the information about the value (size, lang, encoding)
1812                *pValueSize = valueSize + sizeof(SLMetadataInfo);
1813            }
1814        }
1815        break;
1816      default:
1817          *pValueSize = 0;
1818          res = SL_RESULT_PARAMETER_INVALID;
1819          break;
1820    }
1821    return res;
1822}
1823
1824
1825//-----------------------------------------------------------------------------
1826// precondition
1827//  called with no lock held
1828//  ap != NULL
1829//  pValue != NULL
1830SLresult android_audioPlayer_metadata_getValue(CAudioPlayer *ap,
1831        SLuint32 index, SLuint32 size, SLMetadataInfo *pValue) {
1832    if (ap->mAPlayer == 0) {
1833        return SL_RESULT_PARAMETER_INVALID;
1834    }
1835    SLresult res = SL_RESULT_SUCCESS;
1836    switch(ap->mAndroidObjType) {
1837      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1838      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1839        {
1840            android::AudioSfDecoder* decoder =
1841                    static_cast<android::AudioSfDecoder*>(ap->mAPlayer.get());
1842            pValue->encoding = SL_CHARACTERENCODING_BINARY;
1843            memcpy((char *) pValue->langCountry, "en", 3); // applicable here?
1844            SLuint32 valueSize = 0;
1845            if ((size < sizeof(SLMetadataInfo)
1846                    || (!decoder->getPcmFormatValueSize(index, &valueSize))
1847                    || (!decoder->getPcmFormatKeyValue(index, size - sizeof(SLMetadataInfo),
1848                            (SLuint32*)pValue->data)))) {
1849                res = SL_RESULT_PARAMETER_INVALID;
1850            } else {
1851                pValue->size = valueSize;
1852            }
1853        }
1854        break;
1855      default:
1856        res = SL_RESULT_PARAMETER_INVALID;
1857        break;
1858    }
1859    return res;
1860}
1861
1862//-----------------------------------------------------------------------------
1863// preconditions
1864//  ap != NULL
1865//  mutex is locked
1866//  play state has changed
1867void android_audioPlayer_setPlayState(CAudioPlayer *ap) {
1868
1869    SLuint32 playState = ap->mPlay.mState;
1870    AndroidObjectState objState = ap->mAndroidObjState;
1871
1872    switch(ap->mAndroidObjType) {
1873    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
1874        switch (playState) {
1875        case SL_PLAYSTATE_STOPPED:
1876            SL_LOGV("setting AudioPlayer to SL_PLAYSTATE_STOPPED");
1877            if (ap->mAudioTrack != 0) {
1878                ap->mAudioTrack->stop();
1879            }
1880            break;
1881        case SL_PLAYSTATE_PAUSED:
1882            SL_LOGV("setting AudioPlayer to SL_PLAYSTATE_PAUSED");
1883            if (ap->mAudioTrack != 0) {
1884                ap->mAudioTrack->pause();
1885            }
1886            break;
1887        case SL_PLAYSTATE_PLAYING:
1888            SL_LOGV("setting AudioPlayer to SL_PLAYSTATE_PLAYING");
1889            if (ap->mAudioTrack != 0) {
1890                // instead of ap->mAudioTrack->start();
1891                ap->mDeferredStart = true;
1892            }
1893            break;
1894        default:
1895            // checked by caller, should not happen
1896            break;
1897        }
1898        break;
1899
1900    case AUDIOPLAYER_FROM_URIFD:      // intended fall-through
1901    case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:     // intended fall-through
1902    case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:  // intended fall-through
1903    case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1904        // FIXME report and use the return code to the lock mechanism, which is where play state
1905        //   changes are updated (see object_unlock_exclusive_attributes())
1906        aplayer_setPlayState(ap->mAPlayer, playState, &(ap->mAndroidObjState));
1907        break;
1908    default:
1909        SL_LOGE(ERROR_PLAYERSETPLAYSTATE_UNEXPECTED_OBJECT_TYPE_D, ap->mAndroidObjType);
1910        break;
1911    }
1912}
1913
1914
1915//-----------------------------------------------------------------------------
1916// call when either player event flags, marker position, or position update period changes
1917void android_audioPlayer_usePlayEventMask(CAudioPlayer *ap) {
1918    IPlay *pPlayItf = &ap->mPlay;
1919    SLuint32 eventFlags = pPlayItf->mEventFlags;
1920    /*switch(ap->mAndroidObjType) {
1921    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:*/
1922
1923    if (ap->mAPlayer != 0) {
1924        assert(ap->mAudioTrack == 0);
1925        ap->mAPlayer->setPlayEvents((int32_t) eventFlags, (int32_t) pPlayItf->mMarkerPosition,
1926                (int32_t) pPlayItf->mPositionUpdatePeriod);
1927        return;
1928    }
1929
1930    if (ap->mAudioTrack == 0) {
1931        return;
1932    }
1933
1934    if (eventFlags & SL_PLAYEVENT_HEADATMARKER) {
1935        ap->mAudioTrack->setMarkerPosition((uint32_t)((((int64_t)pPlayItf->mMarkerPosition
1936                * sles_to_android_sampleRate(ap->mSampleRateMilliHz)))/1000));
1937    } else {
1938        // clear marker
1939        ap->mAudioTrack->setMarkerPosition(0);
1940    }
1941
1942    if (eventFlags & SL_PLAYEVENT_HEADATNEWPOS) {
1943         ap->mAudioTrack->setPositionUpdatePeriod(
1944                (uint32_t)((((int64_t)pPlayItf->mPositionUpdatePeriod
1945                * sles_to_android_sampleRate(ap->mSampleRateMilliHz)))/1000));
1946    } else {
1947        // clear periodic update
1948        ap->mAudioTrack->setPositionUpdatePeriod(0);
1949    }
1950
1951    if (eventFlags & SL_PLAYEVENT_HEADATEND) {
1952        // nothing to do for SL_PLAYEVENT_HEADATEND, callback event will be checked against mask
1953    }
1954
1955    if (eventFlags & SL_PLAYEVENT_HEADMOVING) {
1956        // FIXME support SL_PLAYEVENT_HEADMOVING
1957        SL_LOGD("[ FIXME: IPlay_SetCallbackEventsMask(SL_PLAYEVENT_HEADMOVING) on an "
1958            "SL_OBJECTID_AUDIOPLAYER to be implemented ]");
1959    }
1960    if (eventFlags & SL_PLAYEVENT_HEADSTALLED) {
1961        // nothing to do for SL_PLAYEVENT_HEADSTALLED, callback event will be checked against mask
1962    }
1963
1964}
1965
1966
1967//-----------------------------------------------------------------------------
1968SLresult android_audioPlayer_getDuration(IPlay *pPlayItf, SLmillisecond *pDurMsec) {
1969    CAudioPlayer *ap = (CAudioPlayer *)pPlayItf->mThis;
1970    switch(ap->mAndroidObjType) {
1971
1972      case AUDIOPLAYER_FROM_URIFD:  // intended fall-through
1973      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE: {
1974        int32_t durationMsec = ANDROID_UNKNOWN_TIME;
1975        if (ap->mAPlayer != 0) {
1976            ap->mAPlayer->getDurationMsec(&durationMsec);
1977        }
1978        *pDurMsec = durationMsec == ANDROID_UNKNOWN_TIME ? SL_TIME_UNKNOWN : durationMsec;
1979        break;
1980      }
1981
1982      case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE: // intended fall-through
1983      case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
1984      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1985      default: {
1986        *pDurMsec = SL_TIME_UNKNOWN;
1987      }
1988    }
1989    return SL_RESULT_SUCCESS;
1990}
1991
1992
1993//-----------------------------------------------------------------------------
1994void android_audioPlayer_getPosition(IPlay *pPlayItf, SLmillisecond *pPosMsec) {
1995    CAudioPlayer *ap = (CAudioPlayer *)pPlayItf->mThis;
1996    switch(ap->mAndroidObjType) {
1997
1998      case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
1999        if ((ap->mSampleRateMilliHz == UNKNOWN_SAMPLERATE) || (ap->mAudioTrack == 0)) {
2000            *pPosMsec = 0;
2001        } else {
2002            uint32_t positionInFrames;
2003            ap->mAudioTrack->getPosition(&positionInFrames);
2004            *pPosMsec = ((int64_t)positionInFrames * 1000) /
2005                    sles_to_android_sampleRate(ap->mSampleRateMilliHz);
2006        }
2007        break;
2008
2009      case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:    // intended fall-through
2010      case AUDIOPLAYER_FROM_URIFD:
2011      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
2012      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE: {
2013        int32_t posMsec = ANDROID_UNKNOWN_TIME;
2014        if (ap->mAPlayer != 0) {
2015            ap->mAPlayer->getPositionMsec(&posMsec);
2016        }
2017        *pPosMsec = posMsec == ANDROID_UNKNOWN_TIME ? 0 : posMsec;
2018        break;
2019      }
2020
2021      default:
2022        *pPosMsec = 0;
2023    }
2024}
2025
2026
2027//-----------------------------------------------------------------------------
2028SLresult android_audioPlayer_seek(CAudioPlayer *ap, SLmillisecond posMsec) {
2029    SLresult result = SL_RESULT_SUCCESS;
2030
2031    switch(ap->mAndroidObjType) {
2032
2033      case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:      // intended fall-through
2034      case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:
2035      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
2036        result = SL_RESULT_FEATURE_UNSUPPORTED;
2037        break;
2038
2039      case AUDIOPLAYER_FROM_URIFD:                   // intended fall-through
2040      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
2041        if (ap->mAPlayer != 0) {
2042            ap->mAPlayer->seek(posMsec);
2043        }
2044        break;
2045
2046      default:
2047        break;
2048    }
2049    return result;
2050}
2051
2052
2053//-----------------------------------------------------------------------------
2054SLresult android_audioPlayer_loop(CAudioPlayer *ap, SLboolean loopEnable) {
2055    SLresult result = SL_RESULT_SUCCESS;
2056
2057    switch (ap->mAndroidObjType) {
2058    case AUDIOPLAYER_FROM_URIFD:
2059    // case AUDIOPLAY_FROM_URIFD_TO_PCM_BUFFERQUEUE:
2060    //      would actually work, but what's the point?
2061      if (ap->mAPlayer != 0) {
2062        ap->mAPlayer->loop((bool)loopEnable);
2063      }
2064      break;
2065    default:
2066      result = SL_RESULT_FEATURE_UNSUPPORTED;
2067      break;
2068    }
2069    return result;
2070}
2071
2072
2073//-----------------------------------------------------------------------------
2074SLresult android_audioPlayer_setBufferingUpdateThresholdPerMille(CAudioPlayer *ap,
2075        SLpermille threshold) {
2076    SLresult result = SL_RESULT_SUCCESS;
2077
2078    switch (ap->mAndroidObjType) {
2079      case AUDIOPLAYER_FROM_URIFD:
2080        if (ap->mAPlayer != 0) {
2081            ap->mAPlayer->setBufferingUpdateThreshold(threshold / 10);
2082        }
2083        break;
2084
2085      default: {}
2086    }
2087
2088    return result;
2089}
2090
2091
2092//-----------------------------------------------------------------------------
2093void android_audioPlayer_bufferQueue_onRefilled_l(CAudioPlayer *ap) {
2094    // the AudioTrack associated with the AudioPlayer receiving audio from a PCM buffer
2095    // queue was stopped when the queue become empty, we restart as soon as a new buffer
2096    // has been enqueued since we're in playing state
2097    if (ap->mAudioTrack != 0) {
2098        // instead of ap->mAudioTrack->start();
2099        ap->mDeferredStart = true;
2100    }
2101
2102    // when the queue became empty, an underflow on the prefetch status itf was sent. Now the queue
2103    // has received new data, signal it has sufficient data
2104    if (IsInterfaceInitialized(&(ap->mObject), MPH_PREFETCHSTATUS)) {
2105        // we wouldn't have been called unless we were previously in the underflow state
2106        assert(SL_PREFETCHSTATUS_UNDERFLOW == ap->mPrefetchStatus.mStatus);
2107        assert(0 == ap->mPrefetchStatus.mLevel);
2108        ap->mPrefetchStatus.mStatus = SL_PREFETCHSTATUS_SUFFICIENTDATA;
2109        ap->mPrefetchStatus.mLevel = 1000;
2110        // callback or no callback?
2111        SLuint32 prefetchEvents = ap->mPrefetchStatus.mCallbackEventsMask &
2112                (SL_PREFETCHEVENT_STATUSCHANGE | SL_PREFETCHEVENT_FILLLEVELCHANGE);
2113        if (SL_PREFETCHEVENT_NONE != prefetchEvents) {
2114            ap->mPrefetchStatus.mDeferredPrefetchCallback = ap->mPrefetchStatus.mCallback;
2115            ap->mPrefetchStatus.mDeferredPrefetchContext  = ap->mPrefetchStatus.mContext;
2116            ap->mPrefetchStatus.mDeferredPrefetchEvents   = prefetchEvents;
2117        }
2118    }
2119}
2120
2121
2122//-----------------------------------------------------------------------------
2123/*
2124 * BufferQueue::Clear
2125 */
2126SLresult android_audioPlayer_bufferQueue_onClear(CAudioPlayer *ap) {
2127    SLresult result = SL_RESULT_SUCCESS;
2128
2129    switch (ap->mAndroidObjType) {
2130    //-----------------------------------
2131    // AudioTrack
2132    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
2133        if (ap->mAudioTrack != 0) {
2134            ap->mAudioTrack->flush();
2135        }
2136        break;
2137    default:
2138        result = SL_RESULT_INTERNAL_ERROR;
2139        break;
2140    }
2141
2142    return result;
2143}
2144
2145
2146//-----------------------------------------------------------------------------
2147SLresult android_audioPlayer_androidBufferQueue_registerCallback_l(CAudioPlayer *ap) {
2148    SLresult result = SL_RESULT_SUCCESS;
2149    assert(ap->mAPlayer != 0);
2150    // FIXME investigate why these two cases are not handled symmetrically any more
2151    switch (ap->mAndroidObjType) {
2152      case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE: {
2153        } break;
2154      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE: {
2155          android::AacBqToPcmCbRenderer* dec =
2156                  static_cast<android::AacBqToPcmCbRenderer*>(ap->mAPlayer.get());
2157          dec->registerSourceQueueCallback((const void*)ap /*user*/,
2158                  ap->mAndroidBufferQueue.mContext /*context*/,
2159                  (const void*)&(ap->mAndroidBufferQueue.mItf) /*caller*/);
2160        } break;
2161      default:
2162        SL_LOGE("Error registering AndroidBufferQueue callback: unexpected object type %d",
2163                ap->mAndroidObjType);
2164        result = SL_RESULT_INTERNAL_ERROR;
2165        break;
2166    }
2167    return result;
2168}
2169
2170//-----------------------------------------------------------------------------
2171void android_audioPlayer_androidBufferQueue_clear_l(CAudioPlayer *ap) {
2172    switch (ap->mAndroidObjType) {
2173    case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:
2174      if (ap->mAPlayer != 0) {
2175        android::StreamPlayer* splr = static_cast<android::StreamPlayer*>(ap->mAPlayer.get());
2176        splr->appClear_l();
2177      } break;
2178    case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
2179      // nothing to do here, fall through
2180    default:
2181      break;
2182    }
2183}
2184
2185void android_audioPlayer_androidBufferQueue_onRefilled_l(CAudioPlayer *ap) {
2186    switch (ap->mAndroidObjType) {
2187    case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:
2188      if (ap->mAPlayer != 0) {
2189        android::StreamPlayer* splr = static_cast<android::StreamPlayer*>(ap->mAPlayer.get());
2190        splr->queueRefilled();
2191      } break;
2192    case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
2193      // FIXME this may require waking up the decoder if it is currently starved and isn't polling
2194    default:
2195      break;
2196    }
2197}
2198