AudioPlayer_to_android.cpp revision e2e8fa36bd7448b59fbcdf141e0b6d21e5401d91 
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 is handled by a subclass.
717        } else {
718            // SfPlayer prepare() failed prefetching, there is no event in SLPrefetchStatus to
719            //  indicate a prefetch error, so we signal it by sending simultaneously two events:
720            //  - SL_PREFETCHEVENT_FILLLEVELCHANGE with a level of 0
721            //  - SL_PREFETCHEVENT_STATUSCHANGE with a status of SL_PREFETCHSTATUS_UNDERFLOW
722            SL_LOGE(ERROR_PLAYER_PREFETCH_d, data1);
723            if (IsInterfaceInitialized(&(ap->mObject), MPH_PREFETCHSTATUS)) {
724                ap->mPrefetchStatus.mLevel = 0;
725                ap->mPrefetchStatus.mStatus = SL_PREFETCHSTATUS_UNDERFLOW;
726                if (!(~ap->mPrefetchStatus.mCallbackEventsMask &
727                        (SL_PREFETCHEVENT_FILLLEVELCHANGE | SL_PREFETCHEVENT_STATUSCHANGE))) {
728                    callback = ap->mPrefetchStatus.mCallback;
729                    callbackPContext = ap->mPrefetchStatus.mContext;
730                    events = SL_PREFETCHEVENT_FILLLEVELCHANGE | SL_PREFETCHEVENT_STATUSCHANGE;
731                }
732            }
733        }
734
735        object_unlock_exclusive(&ap->mObject);
736
737        // callback with no lock held
738        if (NULL != callback) {
739            (*callback)(&ap->mPrefetchStatus.mItf, callbackPContext, events);
740        }
741
742    }
743    break;
744
745    case android::GenericPlayer::kEventPrefetchFillLevelUpdate : {
746        if (!IsInterfaceInitialized(&(ap->mObject), MPH_PREFETCHSTATUS)) {
747            break;
748        }
749        slPrefetchCallback callback = NULL;
750        void* callbackPContext = NULL;
751
752        // SLPrefetchStatusItf callback or no callback?
753        interface_lock_exclusive(&ap->mPrefetchStatus);
754        if (ap->mPrefetchStatus.mCallbackEventsMask & SL_PREFETCHEVENT_FILLLEVELCHANGE) {
755            callback = ap->mPrefetchStatus.mCallback;
756            callbackPContext = ap->mPrefetchStatus.mContext;
757        }
758        ap->mPrefetchStatus.mLevel = (SLpermille)data1;
759        interface_unlock_exclusive(&ap->mPrefetchStatus);
760
761        // callback with no lock held
762        if (NULL != callback) {
763            (*callback)(&ap->mPrefetchStatus.mItf, callbackPContext,
764                    SL_PREFETCHEVENT_FILLLEVELCHANGE);
765        }
766    }
767    break;
768
769    case android::GenericPlayer::kEventPrefetchStatusChange: {
770        if (!IsInterfaceInitialized(&(ap->mObject), MPH_PREFETCHSTATUS)) {
771            break;
772        }
773        slPrefetchCallback callback = NULL;
774        void* callbackPContext = NULL;
775
776        // SLPrefetchStatusItf callback or no callback?
777        object_lock_exclusive(&ap->mObject);
778        if (ap->mPrefetchStatus.mCallbackEventsMask & SL_PREFETCHEVENT_STATUSCHANGE) {
779            callback = ap->mPrefetchStatus.mCallback;
780            callbackPContext = ap->mPrefetchStatus.mContext;
781        }
782        if (data1 >= android::kStatusIntermediate) {
783            ap->mPrefetchStatus.mStatus = SL_PREFETCHSTATUS_SUFFICIENTDATA;
784        } else if (data1 < android::kStatusIntermediate) {
785            ap->mPrefetchStatus.mStatus = SL_PREFETCHSTATUS_UNDERFLOW;
786        }
787        object_unlock_exclusive(&ap->mObject);
788
789        // callback with no lock held
790        if (NULL != callback) {
791            (*callback)(&ap->mPrefetchStatus.mItf, callbackPContext, SL_PREFETCHEVENT_STATUSCHANGE);
792        }
793        }
794        break;
795
796    case android::GenericPlayer::kEventEndOfStream: {
797        audioPlayer_dispatch_headAtEnd_lockPlay(ap, true /*set state to paused?*/, true);
798        if ((ap->mAudioTrack != 0) && (!ap->mSeek.mLoopEnabled)) {
799            ap->mAudioTrack->stop();
800        }
801        }
802        break;
803
804    case android::GenericPlayer::kEventChannelCount: {
805        object_lock_exclusive(&ap->mObject);
806        if (UNKNOWN_NUMCHANNELS == ap->mNumChannels && UNKNOWN_NUMCHANNELS != data1) {
807            ap->mNumChannels = data1;
808            android_audioPlayer_volumeUpdate(ap);
809        }
810        object_unlock_exclusive(&ap->mObject);
811        }
812        break;
813
814    case android::GenericPlayer::kEventPlay: {
815        slPlayCallback callback = NULL;
816        void* callbackPContext = NULL;
817
818        interface_lock_shared(&ap->mPlay);
819        callback = ap->mPlay.mCallback;
820        callbackPContext = ap->mPlay.mContext;
821        interface_unlock_shared(&ap->mPlay);
822
823        if (NULL != callback) {
824            SLuint32 event = (SLuint32) data1;  // SL_PLAYEVENT_HEAD*
825#ifndef USE_ASYNCHRONOUS_PLAY_CALLBACK
826            // synchronous callback requires a synchronous GetPosition implementation
827            (*callback)(&ap->mPlay.mItf, callbackPContext, event);
828#else
829            // asynchronous callback works with any GetPosition implementation
830            SLresult result = EnqueueAsyncCallback_ppi(ap, callback, &ap->mPlay.mItf,
831                    callbackPContext, event);
832            if (SL_RESULT_SUCCESS != result) {
833                LOGW("Callback %p(%p, %p, 0x%x) dropped", callback,
834                        &ap->mPlay.mItf, callbackPContext, event);
835            }
836#endif
837        }
838        }
839        break;
840
841      case android::GenericPlayer::kEventErrorAfterPrepare: {
842        SL_LOGI("kEventErrorAfterPrepare");
843
844        // assume no callback
845        slPrefetchCallback callback = NULL;
846        void* callbackPContext = NULL;
847
848        object_lock_exclusive(&ap->mObject);
849        if (IsInterfaceInitialized(&ap->mObject, MPH_PREFETCHSTATUS)) {
850            SL_LOGI("inited");
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                SL_LOGI("enabled");
856                callback = ap->mPrefetchStatus.mCallback;
857                callbackPContext = ap->mPrefetchStatus.mContext;
858            }
859        }
860        object_unlock_exclusive(&ap->mObject);
861
862        // FIXME there's interesting information in data1, but no API to convey it to client
863        SL_LOGE("Error after prepare: %d", data1);
864
865        // callback with no lock held
866        SL_LOGE("callback=%p context=%p", callback, callbackPContext);
867        if (NULL != callback) {
868            (*callback)(&ap->mPrefetchStatus.mItf, callbackPContext,
869                    SL_PREFETCHEVENT_FILLLEVELCHANGE | SL_PREFETCHEVENT_STATUSCHANGE);
870        }
871
872      }
873      break;
874
875    case android::GenericPlayer::kEventHasVideoSize:
876        //SL_LOGW("Unexpected kEventHasVideoSize");
877        break;
878
879    default:
880        break;
881    }
882
883    ap->mCallbackProtector->exitCb();
884}
885
886
887//-----------------------------------------------------------------------------
888SLresult android_audioPlayer_checkSourceSink(CAudioPlayer *pAudioPlayer)
889{
890    // verify that the locator types for the source / sink combination is supported
891    pAudioPlayer->mAndroidObjType = audioPlayer_getAndroidObjectTypeForSourceSink(pAudioPlayer);
892    if (INVALID_TYPE == pAudioPlayer->mAndroidObjType) {
893        return SL_RESULT_PARAMETER_INVALID;
894    }
895
896    const SLDataSource *pAudioSrc = &pAudioPlayer->mDataSource.u.mSource;
897    const SLDataSink *pAudioSnk = &pAudioPlayer->mDataSink.u.mSink;
898
899    // format check:
900    const SLuint32 sourceLocatorType = *(SLuint32 *)pAudioSrc->pLocator;
901    const SLuint32 sinkLocatorType = *(SLuint32 *)pAudioSnk->pLocator;
902    const SLuint32 sourceFormatType = *(SLuint32 *)pAudioSrc->pFormat;
903    const SLuint32 sinkFormatType = *(SLuint32 *)pAudioSnk->pFormat;
904
905    switch (sourceLocatorType) {
906    //------------------
907    //   Buffer Queues
908    case SL_DATALOCATOR_BUFFERQUEUE:
909    case SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE:
910        {
911        SLDataLocator_BufferQueue *dl_bq =  (SLDataLocator_BufferQueue *) pAudioSrc->pLocator;
912
913        // Buffer format
914        switch (sourceFormatType) {
915        //     currently only PCM buffer queues are supported,
916        case SL_DATAFORMAT_PCM: {
917            SLDataFormat_PCM *df_pcm = (SLDataFormat_PCM *) pAudioSrc->pFormat;
918            switch (df_pcm->numChannels) {
919            case 1:
920            case 2:
921                break;
922            default:
923                // this should have already been rejected by checkDataFormat
924                SL_LOGE("Cannot create audio player: unsupported " \
925                    "PCM data source with %u channels", (unsigned) df_pcm->numChannels);
926                return SL_RESULT_CONTENT_UNSUPPORTED;
927            }
928            switch (df_pcm->samplesPerSec) {
929            case SL_SAMPLINGRATE_8:
930            case SL_SAMPLINGRATE_11_025:
931            case SL_SAMPLINGRATE_12:
932            case SL_SAMPLINGRATE_16:
933            case SL_SAMPLINGRATE_22_05:
934            case SL_SAMPLINGRATE_24:
935            case SL_SAMPLINGRATE_32:
936            case SL_SAMPLINGRATE_44_1:
937            case SL_SAMPLINGRATE_48:
938                break;
939            case SL_SAMPLINGRATE_64:
940            case SL_SAMPLINGRATE_88_2:
941            case SL_SAMPLINGRATE_96:
942            case SL_SAMPLINGRATE_192:
943            default:
944                SL_LOGE("Cannot create audio player: unsupported sample rate %u milliHz",
945                    (unsigned) df_pcm->samplesPerSec);
946                return SL_RESULT_CONTENT_UNSUPPORTED;
947            }
948            switch (df_pcm->bitsPerSample) {
949            case SL_PCMSAMPLEFORMAT_FIXED_8:
950            case SL_PCMSAMPLEFORMAT_FIXED_16:
951                break;
952                // others
953            default:
954                // this should have already been rejected by checkDataFormat
955                SL_LOGE("Cannot create audio player: unsupported sample bit depth %u",
956                        (SLuint32)df_pcm->bitsPerSample);
957                return SL_RESULT_CONTENT_UNSUPPORTED;
958            }
959            switch (df_pcm->containerSize) {
960            case 8:
961            case 16:
962                break;
963                // others
964            default:
965                SL_LOGE("Cannot create audio player: unsupported container size %u",
966                    (unsigned) df_pcm->containerSize);
967                return SL_RESULT_CONTENT_UNSUPPORTED;
968            }
969            // df_pcm->channelMask: the earlier platform-independent check and the
970            //     upcoming check by sles_to_android_channelMaskOut are sufficient
971            switch (df_pcm->endianness) {
972            case SL_BYTEORDER_LITTLEENDIAN:
973                break;
974            case SL_BYTEORDER_BIGENDIAN:
975                SL_LOGE("Cannot create audio player: unsupported big-endian byte order");
976                return SL_RESULT_CONTENT_UNSUPPORTED;
977                // native is proposed but not yet in spec
978            default:
979                SL_LOGE("Cannot create audio player: unsupported byte order %u",
980                    (unsigned) df_pcm->endianness);
981                return SL_RESULT_CONTENT_UNSUPPORTED;
982            }
983            } //case SL_DATAFORMAT_PCM
984            break;
985        case SL_DATAFORMAT_MIME:
986        case XA_DATAFORMAT_RAWIMAGE:
987            SL_LOGE("Cannot create audio player with buffer queue data source "
988                "without SL_DATAFORMAT_PCM format");
989            return SL_RESULT_CONTENT_UNSUPPORTED;
990        default:
991            // invalid data format is detected earlier
992            assert(false);
993            return SL_RESULT_INTERNAL_ERROR;
994        } // switch (sourceFormatType)
995        } // case SL_DATALOCATOR_BUFFERQUEUE or SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE
996        break;
997    //------------------
998    //   URI
999    case SL_DATALOCATOR_URI:
1000        {
1001        SLDataLocator_URI *dl_uri =  (SLDataLocator_URI *) pAudioSrc->pLocator;
1002        if (NULL == dl_uri->URI) {
1003            return SL_RESULT_PARAMETER_INVALID;
1004        }
1005        // URI format
1006        switch (sourceFormatType) {
1007        case SL_DATAFORMAT_MIME:
1008            break;
1009        case SL_DATAFORMAT_PCM:
1010        case XA_DATAFORMAT_RAWIMAGE:
1011            SL_LOGE("Cannot create audio player with SL_DATALOCATOR_URI data source without "
1012                "SL_DATAFORMAT_MIME format");
1013            return SL_RESULT_CONTENT_UNSUPPORTED;
1014        } // switch (sourceFormatType)
1015        // decoding format check
1016        if ((sinkLocatorType != SL_DATALOCATOR_OUTPUTMIX) &&
1017                !audioPlayer_isSupportedNonOutputMixSink(pAudioSnk)) {
1018            return SL_RESULT_CONTENT_UNSUPPORTED;
1019        }
1020        } // case SL_DATALOCATOR_URI
1021        break;
1022    //------------------
1023    //   File Descriptor
1024    case SL_DATALOCATOR_ANDROIDFD:
1025        {
1026        // fd is already non null
1027        switch (sourceFormatType) {
1028        case SL_DATAFORMAT_MIME:
1029            break;
1030        case SL_DATAFORMAT_PCM:
1031            // FIXME implement
1032            SL_LOGD("[ FIXME implement PCM FD data sources ]");
1033            break;
1034        case XA_DATAFORMAT_RAWIMAGE:
1035            SL_LOGE("Cannot create audio player with SL_DATALOCATOR_ANDROIDFD data source "
1036                "without SL_DATAFORMAT_MIME or SL_DATAFORMAT_PCM format");
1037            return SL_RESULT_CONTENT_UNSUPPORTED;
1038        default:
1039            // invalid data format is detected earlier
1040            assert(false);
1041            return SL_RESULT_INTERNAL_ERROR;
1042        } // switch (sourceFormatType)
1043        if ((sinkLocatorType != SL_DATALOCATOR_OUTPUTMIX) &&
1044                !audioPlayer_isSupportedNonOutputMixSink(pAudioSnk)) {
1045            return SL_RESULT_CONTENT_UNSUPPORTED;
1046        }
1047        } // case SL_DATALOCATOR_ANDROIDFD
1048        break;
1049    //------------------
1050    //   Stream
1051    case SL_DATALOCATOR_ANDROIDBUFFERQUEUE:
1052    {
1053        switch (sourceFormatType) {
1054        case SL_DATAFORMAT_MIME:
1055        {
1056            SLDataFormat_MIME *df_mime = (SLDataFormat_MIME *) pAudioSrc->pFormat;
1057            if (NULL == df_mime) {
1058                SL_LOGE("MIME type null invalid");
1059                return SL_RESULT_CONTENT_UNSUPPORTED;
1060            }
1061            SL_LOGD("source MIME is %s", (char*)df_mime->mimeType);
1062            switch(df_mime->containerType) {
1063            case SL_CONTAINERTYPE_MPEG_TS:
1064                if (strcasecmp((char*)df_mime->mimeType, (const char *)XA_ANDROID_MIME_MP2TS)) {
1065                    SL_LOGE("Invalid MIME (%s) for container SL_CONTAINERTYPE_MPEG_TS, expects %s",
1066                            (char*)df_mime->mimeType, XA_ANDROID_MIME_MP2TS);
1067                    return SL_RESULT_CONTENT_UNSUPPORTED;
1068                }
1069                break;
1070            case SL_CONTAINERTYPE_RAW:
1071            case SL_CONTAINERTYPE_AAC:
1072                if (strcasecmp((char*)df_mime->mimeType, (const char *)SL_ANDROID_MIME_AACADTS) &&
1073                        strcasecmp((char*)df_mime->mimeType,
1074                                ANDROID_MIME_AACADTS_ANDROID_FRAMEWORK)) {
1075                    SL_LOGE("Invalid MIME (%s) for container type %d, expects %s",
1076                            (char*)df_mime->mimeType, df_mime->containerType,
1077                            SL_ANDROID_MIME_AACADTS);
1078                    return SL_RESULT_CONTENT_UNSUPPORTED;
1079                }
1080                break;
1081            default:
1082                SL_LOGE("Cannot create player with SL_DATALOCATOR_ANDROIDBUFFERQUEUE data source "
1083                                        "that is not fed MPEG-2 TS data or AAC ADTS data");
1084                return SL_RESULT_CONTENT_UNSUPPORTED;
1085            }
1086        }
1087        break;
1088        default:
1089            SL_LOGE("Cannot create player with SL_DATALOCATOR_ANDROIDBUFFERQUEUE data source "
1090                    "without SL_DATAFORMAT_MIME format");
1091            return SL_RESULT_CONTENT_UNSUPPORTED;
1092        }
1093    }
1094    break; // case SL_DATALOCATOR_ANDROIDBUFFERQUEUE
1095    //------------------
1096    //   Address
1097    case SL_DATALOCATOR_ADDRESS:
1098    case SL_DATALOCATOR_IODEVICE:
1099    case SL_DATALOCATOR_OUTPUTMIX:
1100    case XA_DATALOCATOR_NATIVEDISPLAY:
1101    case SL_DATALOCATOR_MIDIBUFFERQUEUE:
1102        SL_LOGE("Cannot create audio player with data locator type 0x%x",
1103                (unsigned) sourceLocatorType);
1104        return SL_RESULT_CONTENT_UNSUPPORTED;
1105    default:
1106        SL_LOGE("Cannot create audio player with invalid data locator type 0x%x",
1107                (unsigned) sourceLocatorType);
1108        return SL_RESULT_PARAMETER_INVALID;
1109    }// switch (locatorType)
1110
1111    return SL_RESULT_SUCCESS;
1112}
1113
1114
1115//-----------------------------------------------------------------------------
1116// Callback associated with an AudioTrack of an SL ES AudioPlayer that gets its data
1117// from a buffer queue. This will not be called once the AudioTrack has been destroyed.
1118static void audioTrack_callBack_pullFromBuffQueue(int event, void* user, void *info) {
1119    CAudioPlayer *ap = (CAudioPlayer *)user;
1120
1121    if (!android::CallbackProtector::enterCbIfOk(ap->mCallbackProtector)) {
1122        // it is not safe to enter the callback (the track is about to go away)
1123        return;
1124    }
1125
1126    void * callbackPContext = NULL;
1127    switch(event) {
1128
1129    case android::AudioTrack::EVENT_MORE_DATA: {
1130        //SL_LOGV("received event EVENT_MORE_DATA from AudioTrack TID=%d", gettid());
1131        slBufferQueueCallback callback = NULL;
1132        slPrefetchCallback prefetchCallback = NULL;
1133        void *prefetchContext = NULL;
1134        SLuint32 prefetchEvents = SL_PREFETCHEVENT_NONE;
1135        android::AudioTrack::Buffer* pBuff = (android::AudioTrack::Buffer*)info;
1136
1137        // retrieve data from the buffer queue
1138        interface_lock_exclusive(&ap->mBufferQueue);
1139
1140        if (ap->mBufferQueue.mState.count != 0) {
1141            //SL_LOGV("nbBuffers in queue = %u",ap->mBufferQueue.mState.count);
1142            assert(ap->mBufferQueue.mFront != ap->mBufferQueue.mRear);
1143
1144            BufferHeader *oldFront = ap->mBufferQueue.mFront;
1145            BufferHeader *newFront = &oldFront[1];
1146
1147            // declared as void * because this code supports both 8-bit and 16-bit PCM data
1148            void *pSrc = (char *)oldFront->mBuffer + ap->mBufferQueue.mSizeConsumed;
1149            if (ap->mBufferQueue.mSizeConsumed + pBuff->size < oldFront->mSize) {
1150                // can't consume the whole or rest of the buffer in one shot
1151                ap->mBufferQueue.mSizeConsumed += pBuff->size;
1152                // leave pBuff->size untouched
1153                // consume data
1154                // FIXME can we avoid holding the lock during the copy?
1155                memcpy (pBuff->raw, pSrc, pBuff->size);
1156            } else {
1157                // finish consuming the buffer or consume the buffer in one shot
1158                pBuff->size = oldFront->mSize - ap->mBufferQueue.mSizeConsumed;
1159                ap->mBufferQueue.mSizeConsumed = 0;
1160
1161                if (newFront ==
1162                        &ap->mBufferQueue.mArray
1163                            [ap->mBufferQueue.mNumBuffers + 1])
1164                {
1165                    newFront = ap->mBufferQueue.mArray;
1166                }
1167                ap->mBufferQueue.mFront = newFront;
1168
1169                ap->mBufferQueue.mState.count--;
1170                ap->mBufferQueue.mState.playIndex++;
1171
1172                // consume data
1173                // FIXME can we avoid holding the lock during the copy?
1174                memcpy (pBuff->raw, pSrc, pBuff->size);
1175
1176                // data has been consumed, and the buffer queue state has been updated
1177                // we will notify the client if applicable
1178                callback = ap->mBufferQueue.mCallback;
1179                // save callback data
1180                callbackPContext = ap->mBufferQueue.mContext;
1181            }
1182        } else { // empty queue
1183            // signal no data available
1184            pBuff->size = 0;
1185
1186            // signal we're at the end of the content, but don't pause (see note in function)
1187            audioPlayer_dispatch_headAtEnd_lockPlay(ap, false /*set state to paused?*/, false);
1188
1189            // signal underflow to prefetch status itf
1190            if (IsInterfaceInitialized(&(ap->mObject), MPH_PREFETCHSTATUS)) {
1191                ap->mPrefetchStatus.mStatus = SL_PREFETCHSTATUS_UNDERFLOW;
1192                ap->mPrefetchStatus.mLevel = 0;
1193                // callback or no callback?
1194                prefetchEvents = ap->mPrefetchStatus.mCallbackEventsMask &
1195                        (SL_PREFETCHEVENT_STATUSCHANGE | SL_PREFETCHEVENT_FILLLEVELCHANGE);
1196                if (SL_PREFETCHEVENT_NONE != prefetchEvents) {
1197                    prefetchCallback = ap->mPrefetchStatus.mCallback;
1198                    prefetchContext  = ap->mPrefetchStatus.mContext;
1199                }
1200            }
1201
1202            // stop the track so it restarts playing faster when new data is enqueued
1203            ap->mAudioTrack->stop();
1204        }
1205        interface_unlock_exclusive(&ap->mBufferQueue);
1206
1207        // notify client
1208        if (NULL != prefetchCallback) {
1209            assert(SL_PREFETCHEVENT_NONE != prefetchEvents);
1210            // spec requires separate callbacks for each event
1211            if (prefetchEvents & SL_PREFETCHEVENT_STATUSCHANGE) {
1212                (*prefetchCallback)(&ap->mPrefetchStatus.mItf, prefetchContext,
1213                        SL_PREFETCHEVENT_STATUSCHANGE);
1214            }
1215            if (prefetchEvents & SL_PREFETCHEVENT_FILLLEVELCHANGE) {
1216                (*prefetchCallback)(&ap->mPrefetchStatus.mItf, prefetchContext,
1217                        SL_PREFETCHEVENT_FILLLEVELCHANGE);
1218            }
1219        }
1220        if (NULL != callback) {
1221            (*callback)(&ap->mBufferQueue.mItf, callbackPContext);
1222        }
1223    }
1224    break;
1225
1226    case android::AudioTrack::EVENT_MARKER:
1227        //SL_LOGI("received event EVENT_MARKER from AudioTrack");
1228        audioTrack_handleMarker_lockPlay(ap);
1229        break;
1230
1231    case android::AudioTrack::EVENT_NEW_POS:
1232        //SL_LOGI("received event EVENT_NEW_POS from AudioTrack");
1233        audioTrack_handleNewPos_lockPlay(ap);
1234        break;
1235
1236    case android::AudioTrack::EVENT_UNDERRUN:
1237        //SL_LOGI("received event EVENT_UNDERRUN from AudioTrack");
1238        audioTrack_handleUnderrun_lockPlay(ap);
1239        break;
1240
1241    case android::AudioTrack::EVENT_BUFFER_END:
1242    case android::AudioTrack::EVENT_LOOP_END:
1243        // These are unexpected so fall through
1244    default:
1245        // FIXME where does the notification of SL_PLAYEVENT_HEADMOVING fit?
1246        SL_LOGE("Encountered unknown AudioTrack event %d for CAudioPlayer %p", event,
1247                (CAudioPlayer *)user);
1248        break;
1249    }
1250
1251    ap->mCallbackProtector->exitCb();
1252}
1253
1254
1255//-----------------------------------------------------------------------------
1256SLresult android_audioPlayer_create(CAudioPlayer *pAudioPlayer) {
1257
1258    SLresult result = SL_RESULT_SUCCESS;
1259    // pAudioPlayer->mAndroidObjType has been set in audioPlayer_getAndroidObjectTypeForSourceSink()
1260    if (INVALID_TYPE == pAudioPlayer->mAndroidObjType) {
1261        audioPlayer_setInvalid(pAudioPlayer);
1262        result = SL_RESULT_PARAMETER_INVALID;
1263    } else {
1264
1265        // These initializations are in the same order as the field declarations in classes.h
1266
1267        // FIXME Consolidate initializations (many of these already in IEngine_CreateAudioPlayer)
1268        // mAndroidObjType: see above comment
1269        pAudioPlayer->mAndroidObjState = ANDROID_UNINITIALIZED;
1270        pAudioPlayer->mSessionId = android::AudioSystem::newAudioSessionId();
1271        pAudioPlayer->mStreamType = ANDROID_DEFAULT_OUTPUT_STREAM_TYPE;
1272
1273        // mAudioTrack
1274        pAudioPlayer->mCallbackProtector = new android::CallbackProtector();
1275        // mAPLayer
1276        // mAuxEffect
1277
1278        pAudioPlayer->mAuxSendLevel = 0;
1279        pAudioPlayer->mAmplFromDirectLevel = 1.0f; // matches initial mDirectLevel value
1280        pAudioPlayer->mDeferredStart = false;
1281
1282        // Already initialized in IEngine_CreateAudioPlayer, to be consolidated
1283        pAudioPlayer->mDirectLevel = 0; // no attenuation
1284
1285        // This section re-initializes interface-specific fields that
1286        // can be set or used regardless of whether the interface is
1287        // exposed on the AudioPlayer or not
1288
1289        // Only AudioTrack supports a non-trivial playback rate
1290        switch (pAudioPlayer->mAndroidObjType) {
1291        case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
1292            pAudioPlayer->mPlaybackRate.mMinRate = AUDIOTRACK_MIN_PLAYBACKRATE_PERMILLE;
1293            pAudioPlayer->mPlaybackRate.mMaxRate = AUDIOTRACK_MAX_PLAYBACKRATE_PERMILLE;
1294            break;
1295        default:
1296            // use the default range
1297            break;
1298        }
1299
1300    }
1301
1302    return result;
1303}
1304
1305
1306//-----------------------------------------------------------------------------
1307SLresult android_audioPlayer_setConfig(CAudioPlayer *ap, const SLchar *configKey,
1308        const void *pConfigValue, SLuint32 valueSize) {
1309
1310    SLresult result;
1311
1312    assert(NULL != ap && NULL != configKey && NULL != pConfigValue);
1313    if(strcmp((const char*)configKey, (const char*)SL_ANDROID_KEY_STREAM_TYPE) == 0) {
1314
1315        // stream type
1316        if (KEY_STREAM_TYPE_PARAMSIZE > valueSize) {
1317            SL_LOGE(ERROR_CONFIG_VALUESIZE_TOO_LOW);
1318            result = SL_RESULT_BUFFER_INSUFFICIENT;
1319        } else {
1320            result = audioPlayer_setStreamType(ap, *(SLuint32*)pConfigValue);
1321        }
1322
1323    } else {
1324        SL_LOGE(ERROR_CONFIG_UNKNOWN_KEY);
1325        result = SL_RESULT_PARAMETER_INVALID;
1326    }
1327
1328    return result;
1329}
1330
1331
1332//-----------------------------------------------------------------------------
1333SLresult android_audioPlayer_getConfig(CAudioPlayer* ap, const SLchar *configKey,
1334        SLuint32* pValueSize, void *pConfigValue) {
1335
1336    SLresult result;
1337
1338    assert(NULL != ap && NULL != configKey && NULL != pValueSize);
1339    if(strcmp((const char*)configKey, (const char*)SL_ANDROID_KEY_STREAM_TYPE) == 0) {
1340
1341        // stream type
1342        if (NULL == pConfigValue) {
1343            result = SL_RESULT_SUCCESS;
1344        } else if (KEY_STREAM_TYPE_PARAMSIZE > *pValueSize) {
1345            SL_LOGE(ERROR_CONFIG_VALUESIZE_TOO_LOW);
1346            result = SL_RESULT_BUFFER_INSUFFICIENT;
1347        } else {
1348            result = audioPlayer_getStreamType(ap, (SLint32*)pConfigValue);
1349        }
1350        *pValueSize = KEY_STREAM_TYPE_PARAMSIZE;
1351
1352    } else {
1353        SL_LOGE(ERROR_CONFIG_UNKNOWN_KEY);
1354        result = SL_RESULT_PARAMETER_INVALID;
1355    }
1356
1357    return result;
1358}
1359
1360
1361//-----------------------------------------------------------------------------
1362// FIXME abstract out the diff between CMediaPlayer and CAudioPlayer
1363SLresult android_audioPlayer_realize(CAudioPlayer *pAudioPlayer, SLboolean async) {
1364
1365    SLresult result = SL_RESULT_SUCCESS;
1366    SL_LOGV("Realize pAudioPlayer=%p", pAudioPlayer);
1367
1368    AudioPlayback_Parameters app;
1369    app.sessionId = pAudioPlayer->mSessionId;
1370    app.streamType = pAudioPlayer->mStreamType;
1371
1372    switch (pAudioPlayer->mAndroidObjType) {
1373
1374    //-----------------------------------
1375    // AudioTrack
1376    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
1377        {
1378        // initialize platform-specific CAudioPlayer fields
1379
1380        SLDataLocator_BufferQueue *dl_bq =  (SLDataLocator_BufferQueue *)
1381                pAudioPlayer->mDynamicSource.mDataSource;
1382        SLDataFormat_PCM *df_pcm = (SLDataFormat_PCM *)
1383                pAudioPlayer->mDynamicSource.mDataSource->pFormat;
1384
1385        uint32_t sampleRate = sles_to_android_sampleRate(df_pcm->samplesPerSec);
1386
1387        pAudioPlayer->mAudioTrack = new android::AudioTrackProxy(new android::AudioTrack(
1388                pAudioPlayer->mStreamType,                           // streamType
1389                sampleRate,                                          // sampleRate
1390                sles_to_android_sampleFormat(df_pcm->bitsPerSample), // format
1391                sles_to_android_channelMaskOut(df_pcm->numChannels, df_pcm->channelMask),
1392                                                                     //channel mask
1393                0,                                                   // frameCount (here min)
1394                0,                                                   // flags
1395                audioTrack_callBack_pullFromBuffQueue,               // callback
1396                (void *) pAudioPlayer,                               // user
1397                0      // FIXME find appropriate frame count         // notificationFrame
1398                , pAudioPlayer->mSessionId
1399                ));
1400        android::status_t status = pAudioPlayer->mAudioTrack->initCheck();
1401        if (status != android::NO_ERROR) {
1402            SL_LOGE("AudioTrack::initCheck status %u", status);
1403            result = SL_RESULT_CONTENT_UNSUPPORTED;
1404            pAudioPlayer->mAudioTrack.clear();
1405            return result;
1406        }
1407
1408        // initialize platform-independent CAudioPlayer fields
1409
1410        pAudioPlayer->mNumChannels = df_pcm->numChannels;
1411        pAudioPlayer->mSampleRateMilliHz = df_pcm->samplesPerSec; // Note: bad field name in SL ES
1412
1413        // This use case does not have a separate "prepare" step
1414        pAudioPlayer->mAndroidObjState = ANDROID_READY;
1415        }
1416        break;
1417
1418    //-----------------------------------
1419    // MediaPlayer
1420    case AUDIOPLAYER_FROM_URIFD: {
1421        pAudioPlayer->mAPlayer = new android::LocAVPlayer(&app, false /*hasVideo*/);
1422        pAudioPlayer->mAPlayer->init(sfplayer_handlePrefetchEvent,
1423                        (void*)pAudioPlayer /*notifUSer*/);
1424
1425        switch (pAudioPlayer->mDataSource.mLocator.mLocatorType) {
1426            case SL_DATALOCATOR_URI: {
1427                // The legacy implementation ran Stagefright within the application process, and
1428                // so allowed local pathnames specified by URI that were openable by
1429                // the application but were not openable by mediaserver.
1430                // The current implementation runs Stagefright (mostly) within mediaserver,
1431                // which runs as a different UID and likely a different current working directory.
1432                // For backwards compatibility with any applications which may have relied on the
1433                // previous behavior, we convert an openable file URI into an FD.
1434                // Note that unlike SL_DATALOCATOR_ANDROIDFD, this FD is owned by us
1435                // and so we close it as soon as we've passed it (via Binder dup) to mediaserver.
1436                const char *uri = (const char *)pAudioPlayer->mDataSource.mLocator.mURI.URI;
1437                if (!isDistantProtocol(uri)) {
1438                    // don't touch the original uri, we may need it later
1439                    const char *pathname = uri;
1440                    // skip over an optional leading file:// prefix
1441                    if (!strncasecmp(pathname, "file://", 7)) {
1442                        pathname += 7;
1443                    }
1444                    // attempt to open it as a file using the application's credentials
1445                    int fd = ::open(pathname, O_RDONLY);
1446                    if (fd >= 0) {
1447                        // if open is successful, then check to see if it's a regular file
1448                        struct stat statbuf;
1449                        if (!::fstat(fd, &statbuf) && S_ISREG(statbuf.st_mode)) {
1450                            // treat similarly to an FD data locator, but
1451                            // let setDataSource take responsibility for closing fd
1452                            pAudioPlayer->mAPlayer->setDataSource(fd, 0, statbuf.st_size, true);
1453                            break;
1454                        }
1455                        // we were able to open it, but it's not a file, so let mediaserver try
1456                        (void) ::close(fd);
1457                    }
1458                }
1459                // if either the URI didn't look like a file, or open failed, or not a file
1460                pAudioPlayer->mAPlayer->setDataSource(uri);
1461                } break;
1462            case SL_DATALOCATOR_ANDROIDFD: {
1463                int64_t offset = (int64_t)pAudioPlayer->mDataSource.mLocator.mFD.offset;
1464                pAudioPlayer->mAPlayer->setDataSource(
1465                        (int)pAudioPlayer->mDataSource.mLocator.mFD.fd,
1466                        offset == SL_DATALOCATOR_ANDROIDFD_USE_FILE_SIZE ?
1467                                (int64_t)PLAYER_FD_FIND_FILE_SIZE : offset,
1468                        (int64_t)pAudioPlayer->mDataSource.mLocator.mFD.length);
1469                }
1470                break;
1471            default:
1472                SL_LOGE(ERROR_PLAYERREALIZE_UNKNOWN_DATASOURCE_LOCATOR);
1473                break;
1474        }
1475
1476        }
1477        break;
1478
1479    //-----------------------------------
1480    // StreamPlayer
1481    case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE: {
1482        android::StreamPlayer* splr = new android::StreamPlayer(&app, false /*hasVideo*/,
1483                &pAudioPlayer->mAndroidBufferQueue, pAudioPlayer->mCallbackProtector);
1484        pAudioPlayer->mAPlayer = splr;
1485        splr->init(sfplayer_handlePrefetchEvent, (void*)pAudioPlayer);
1486        }
1487        break;
1488
1489    //-----------------------------------
1490    // AudioToCbRenderer
1491    case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE: {
1492        android::AudioToCbRenderer* decoder = new android::AudioToCbRenderer(&app);
1493        pAudioPlayer->mAPlayer = decoder;
1494        // configures the callback for the sink buffer queue
1495        decoder->setDataPushListener(adecoder_writeToBufferQueue, pAudioPlayer);
1496        // configures the callback for the notifications coming from the SF code
1497        decoder->init(sfplayer_handlePrefetchEvent, (void*)pAudioPlayer);
1498
1499        switch (pAudioPlayer->mDataSource.mLocator.mLocatorType) {
1500        case SL_DATALOCATOR_URI:
1501            decoder->setDataSource(
1502                    (const char*)pAudioPlayer->mDataSource.mLocator.mURI.URI);
1503            break;
1504        case SL_DATALOCATOR_ANDROIDFD: {
1505            int64_t offset = (int64_t)pAudioPlayer->mDataSource.mLocator.mFD.offset;
1506            decoder->setDataSource(
1507                    (int)pAudioPlayer->mDataSource.mLocator.mFD.fd,
1508                    offset == SL_DATALOCATOR_ANDROIDFD_USE_FILE_SIZE ?
1509                            (int64_t)PLAYER_FD_FIND_FILE_SIZE : offset,
1510                            (int64_t)pAudioPlayer->mDataSource.mLocator.mFD.length);
1511            }
1512            break;
1513        default:
1514            SL_LOGE(ERROR_PLAYERREALIZE_UNKNOWN_DATASOURCE_LOCATOR);
1515            break;
1516        }
1517
1518        }
1519        break;
1520
1521    //-----------------------------------
1522    // AacBqToPcmCbRenderer
1523    case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE: {
1524        android::AacBqToPcmCbRenderer* bqtobq = new android::AacBqToPcmCbRenderer(&app);
1525        // configures the callback for the sink buffer queue
1526        bqtobq->setDataPushListener(adecoder_writeToBufferQueue, pAudioPlayer);
1527        pAudioPlayer->mAPlayer = bqtobq;
1528        // configures the callback for the notifications coming from the SF code,
1529        // but also implicitly configures the AndroidBufferQueue from which ADTS data is read
1530        pAudioPlayer->mAPlayer->init(sfplayer_handlePrefetchEvent, (void*)pAudioPlayer);
1531        }
1532        break;
1533
1534    //-----------------------------------
1535    default:
1536        SL_LOGE(ERROR_PLAYERREALIZE_UNEXPECTED_OBJECT_TYPE_D, pAudioPlayer->mAndroidObjType);
1537        result = SL_RESULT_INTERNAL_ERROR;
1538        break;
1539    }
1540
1541    // proceed with effect initialization
1542    // initialize EQ
1543    // FIXME use a table of effect descriptors when adding support for more effects
1544    if (memcmp(SL_IID_EQUALIZER, &pAudioPlayer->mEqualizer.mEqDescriptor.type,
1545            sizeof(effect_uuid_t)) == 0) {
1546        SL_LOGV("Need to initialize EQ for AudioPlayer=%p", pAudioPlayer);
1547        android_eq_init(pAudioPlayer->mSessionId, &pAudioPlayer->mEqualizer);
1548    }
1549    // initialize BassBoost
1550    if (memcmp(SL_IID_BASSBOOST, &pAudioPlayer->mBassBoost.mBassBoostDescriptor.type,
1551            sizeof(effect_uuid_t)) == 0) {
1552        SL_LOGV("Need to initialize BassBoost for AudioPlayer=%p", pAudioPlayer);
1553        android_bb_init(pAudioPlayer->mSessionId, &pAudioPlayer->mBassBoost);
1554    }
1555    // initialize Virtualizer
1556    if (memcmp(SL_IID_VIRTUALIZER, &pAudioPlayer->mVirtualizer.mVirtualizerDescriptor.type,
1557               sizeof(effect_uuid_t)) == 0) {
1558        SL_LOGV("Need to initialize Virtualizer for AudioPlayer=%p", pAudioPlayer);
1559        android_virt_init(pAudioPlayer->mSessionId, &pAudioPlayer->mVirtualizer);
1560    }
1561
1562    // initialize EffectSend
1563    // FIXME initialize EffectSend
1564
1565    return result;
1566}
1567
1568
1569//-----------------------------------------------------------------------------
1570/**
1571 * Called with a lock on AudioPlayer, and blocks until safe to destroy
1572 */
1573SLresult android_audioPlayer_preDestroy(CAudioPlayer *pAudioPlayer) {
1574    SL_LOGD("android_audioPlayer_preDestroy(%p)", pAudioPlayer);
1575    SLresult result = SL_RESULT_SUCCESS;
1576
1577  bool disableCallbacksBeforePreDestroy;
1578  switch (pAudioPlayer->mAndroidObjType) {
1579  // Not yet clear why this order is important, but it reduces detected deadlocks
1580  case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1581    disableCallbacksBeforePreDestroy = true;
1582    break;
1583  // Use the old behavior for all other use cases until proven
1584  // case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1585  default:
1586    disableCallbacksBeforePreDestroy = false;
1587    break;
1588  }
1589
1590  if (disableCallbacksBeforePreDestroy) {
1591    object_unlock_exclusive(&pAudioPlayer->mObject);
1592    if (pAudioPlayer->mCallbackProtector != 0) {
1593        pAudioPlayer->mCallbackProtector->requestCbExitAndWait();
1594    }
1595    object_lock_exclusive(&pAudioPlayer->mObject);
1596  }
1597
1598    if (pAudioPlayer->mAPlayer != 0) {
1599        pAudioPlayer->mAPlayer->preDestroy();
1600    }
1601    SL_LOGD("android_audioPlayer_preDestroy(%p) after mAPlayer->preDestroy()", pAudioPlayer);
1602
1603  if (!disableCallbacksBeforePreDestroy) {
1604    object_unlock_exclusive(&pAudioPlayer->mObject);
1605    if (pAudioPlayer->mCallbackProtector != 0) {
1606        pAudioPlayer->mCallbackProtector->requestCbExitAndWait();
1607    }
1608    object_lock_exclusive(&pAudioPlayer->mObject);
1609  }
1610
1611    return result;
1612}
1613
1614
1615//-----------------------------------------------------------------------------
1616SLresult android_audioPlayer_destroy(CAudioPlayer *pAudioPlayer) {
1617    SLresult result = SL_RESULT_SUCCESS;
1618    SL_LOGV("android_audioPlayer_destroy(%p)", pAudioPlayer);
1619    switch (pAudioPlayer->mAndroidObjType) {
1620
1621    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
1622        // We own the audio track for PCM buffer queue players
1623        if (pAudioPlayer->mAudioTrack != 0) {
1624            pAudioPlayer->mAudioTrack->stop();
1625            // Note that there may still be another reference in post-unlock phase of SetPlayState
1626            pAudioPlayer->mAudioTrack.clear();
1627        }
1628        break;
1629
1630    case AUDIOPLAYER_FROM_URIFD:     // intended fall-through
1631    case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:    // intended fall-through
1632    case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE: // intended fall-through
1633    case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1634        pAudioPlayer->mAPlayer.clear();
1635        break;
1636    //-----------------------------------
1637    default:
1638        SL_LOGE(ERROR_PLAYERDESTROY_UNEXPECTED_OBJECT_TYPE_D, pAudioPlayer->mAndroidObjType);
1639        result = SL_RESULT_INTERNAL_ERROR;
1640        break;
1641    }
1642
1643    pAudioPlayer->mCallbackProtector.clear();
1644
1645    // FIXME might not be needed
1646    pAudioPlayer->mAndroidObjType = INVALID_TYPE;
1647
1648    // explicit destructor
1649    pAudioPlayer->mAudioTrack.~sp();
1650    // note that SetPlayState(PLAYING) may still hold a reference
1651    pAudioPlayer->mCallbackProtector.~sp();
1652    pAudioPlayer->mAuxEffect.~sp();
1653    pAudioPlayer->mAPlayer.~sp();
1654
1655    return result;
1656}
1657
1658
1659//-----------------------------------------------------------------------------
1660SLresult android_audioPlayer_setPlaybackRateAndConstraints(CAudioPlayer *ap, SLpermille rate,
1661        SLuint32 constraints) {
1662    SLresult result = SL_RESULT_SUCCESS;
1663    switch(ap->mAndroidObjType) {
1664    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE: {
1665        // these asserts were already checked by the platform-independent layer
1666        assert((AUDIOTRACK_MIN_PLAYBACKRATE_PERMILLE <= rate) &&
1667                (rate <= AUDIOTRACK_MAX_PLAYBACKRATE_PERMILLE));
1668        assert(constraints & SL_RATEPROP_NOPITCHCORAUDIO);
1669        // get the content sample rate
1670        uint32_t contentRate = sles_to_android_sampleRate(ap->mSampleRateMilliHz);
1671        // apply the SL ES playback rate on the AudioTrack as a factor of its content sample rate
1672        if (ap->mAudioTrack != 0) {
1673            ap->mAudioTrack->setSampleRate(contentRate * (rate/1000.0f));
1674        }
1675        }
1676        break;
1677    case AUDIOPLAYER_FROM_URIFD:
1678        assert(rate == 1000);
1679        assert(constraints & SL_RATEPROP_NOPITCHCORAUDIO);
1680        // that was easy
1681        break;
1682
1683    default:
1684        SL_LOGE("Unexpected object type %d", ap->mAndroidObjType);
1685        result = SL_RESULT_FEATURE_UNSUPPORTED;
1686        break;
1687    }
1688    return result;
1689}
1690
1691
1692//-----------------------------------------------------------------------------
1693// precondition
1694//  called with no lock held
1695//  ap != NULL
1696//  pItemCount != NULL
1697SLresult android_audioPlayer_metadata_getItemCount(CAudioPlayer *ap, SLuint32 *pItemCount) {
1698    if (ap->mAPlayer == 0) {
1699        return SL_RESULT_PARAMETER_INVALID;
1700    }
1701    switch(ap->mAndroidObjType) {
1702      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1703      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1704        {
1705            android::AudioSfDecoder* decoder =
1706                    static_cast<android::AudioSfDecoder*>(ap->mAPlayer.get());
1707            *pItemCount = decoder->getPcmFormatKeyCount();
1708        }
1709        break;
1710      default:
1711        *pItemCount = 0;
1712        break;
1713    }
1714    return SL_RESULT_SUCCESS;
1715}
1716
1717
1718//-----------------------------------------------------------------------------
1719// precondition
1720//  called with no lock held
1721//  ap != NULL
1722//  pKeySize != NULL
1723SLresult android_audioPlayer_metadata_getKeySize(CAudioPlayer *ap,
1724        SLuint32 index, SLuint32 *pKeySize) {
1725    if (ap->mAPlayer == 0) {
1726        return SL_RESULT_PARAMETER_INVALID;
1727    }
1728    SLresult res = SL_RESULT_SUCCESS;
1729    switch(ap->mAndroidObjType) {
1730      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1731      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1732        {
1733            android::AudioSfDecoder* decoder =
1734                    static_cast<android::AudioSfDecoder*>(ap->mAPlayer.get());
1735            SLuint32 keyNameSize = 0;
1736            if (!decoder->getPcmFormatKeySize(index, &keyNameSize)) {
1737                res = SL_RESULT_PARAMETER_INVALID;
1738            } else {
1739                // *pKeySize is the size of the region used to store the key name AND
1740                //   the information about the key (size, lang, encoding)
1741                *pKeySize = keyNameSize + sizeof(SLMetadataInfo);
1742            }
1743        }
1744        break;
1745      default:
1746        *pKeySize = 0;
1747        res = SL_RESULT_PARAMETER_INVALID;
1748        break;
1749    }
1750    return res;
1751}
1752
1753
1754//-----------------------------------------------------------------------------
1755// precondition
1756//  called with no lock held
1757//  ap != NULL
1758//  pKey != NULL
1759SLresult android_audioPlayer_metadata_getKey(CAudioPlayer *ap,
1760        SLuint32 index, SLuint32 size, SLMetadataInfo *pKey) {
1761    if (ap->mAPlayer == 0) {
1762        return SL_RESULT_PARAMETER_INVALID;
1763    }
1764    SLresult res = SL_RESULT_SUCCESS;
1765    switch(ap->mAndroidObjType) {
1766      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1767      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1768        {
1769            android::AudioSfDecoder* decoder =
1770                    static_cast<android::AudioSfDecoder*>(ap->mAPlayer.get());
1771            if ((size < sizeof(SLMetadataInfo) ||
1772                    (!decoder->getPcmFormatKeyName(index, size - sizeof(SLMetadataInfo),
1773                            (char*)pKey->data)))) {
1774                res = SL_RESULT_PARAMETER_INVALID;
1775            } else {
1776                // successfully retrieved the key value, update the other fields
1777                pKey->encoding = SL_CHARACTERENCODING_UTF8;
1778                memcpy((char *) pKey->langCountry, "en", 3);
1779                pKey->size = strlen((char*)pKey->data) + 1;
1780            }
1781        }
1782        break;
1783      default:
1784        res = SL_RESULT_PARAMETER_INVALID;
1785        break;
1786    }
1787    return res;
1788}
1789
1790
1791//-----------------------------------------------------------------------------
1792// precondition
1793//  called with no lock held
1794//  ap != NULL
1795//  pValueSize != NULL
1796SLresult android_audioPlayer_metadata_getValueSize(CAudioPlayer *ap,
1797        SLuint32 index, SLuint32 *pValueSize) {
1798    if (ap->mAPlayer == 0) {
1799        return SL_RESULT_PARAMETER_INVALID;
1800    }
1801    SLresult res = SL_RESULT_SUCCESS;
1802    switch(ap->mAndroidObjType) {
1803      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1804      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1805        {
1806            android::AudioSfDecoder* decoder =
1807                    static_cast<android::AudioSfDecoder*>(ap->mAPlayer.get());
1808            SLuint32 valueSize = 0;
1809            if (!decoder->getPcmFormatValueSize(index, &valueSize)) {
1810                res = SL_RESULT_PARAMETER_INVALID;
1811            } else {
1812                // *pValueSize is the size of the region used to store the key value AND
1813                //   the information about the value (size, lang, encoding)
1814                *pValueSize = valueSize + sizeof(SLMetadataInfo);
1815            }
1816        }
1817        break;
1818      default:
1819          *pValueSize = 0;
1820          res = SL_RESULT_PARAMETER_INVALID;
1821          break;
1822    }
1823    return res;
1824}
1825
1826
1827//-----------------------------------------------------------------------------
1828// precondition
1829//  called with no lock held
1830//  ap != NULL
1831//  pValue != NULL
1832SLresult android_audioPlayer_metadata_getValue(CAudioPlayer *ap,
1833        SLuint32 index, SLuint32 size, SLMetadataInfo *pValue) {
1834    if (ap->mAPlayer == 0) {
1835        return SL_RESULT_PARAMETER_INVALID;
1836    }
1837    SLresult res = SL_RESULT_SUCCESS;
1838    switch(ap->mAndroidObjType) {
1839      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1840      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1841        {
1842            android::AudioSfDecoder* decoder =
1843                    static_cast<android::AudioSfDecoder*>(ap->mAPlayer.get());
1844            pValue->encoding = SL_CHARACTERENCODING_BINARY;
1845            memcpy((char *) pValue->langCountry, "en", 3); // applicable here?
1846            SLuint32 valueSize = 0;
1847            if ((size < sizeof(SLMetadataInfo)
1848                    || (!decoder->getPcmFormatValueSize(index, &valueSize))
1849                    || (!decoder->getPcmFormatKeyValue(index, size - sizeof(SLMetadataInfo),
1850                            (SLuint32*)pValue->data)))) {
1851                res = SL_RESULT_PARAMETER_INVALID;
1852            } else {
1853                pValue->size = valueSize;
1854            }
1855        }
1856        break;
1857      default:
1858        res = SL_RESULT_PARAMETER_INVALID;
1859        break;
1860    }
1861    return res;
1862}
1863
1864//-----------------------------------------------------------------------------
1865// preconditions
1866//  ap != NULL
1867//  mutex is locked
1868//  play state has changed
1869void android_audioPlayer_setPlayState(CAudioPlayer *ap) {
1870
1871    SLuint32 playState = ap->mPlay.mState;
1872    AndroidObjectState objState = ap->mAndroidObjState;
1873
1874    switch(ap->mAndroidObjType) {
1875    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
1876        switch (playState) {
1877        case SL_PLAYSTATE_STOPPED:
1878            SL_LOGV("setting AudioPlayer to SL_PLAYSTATE_STOPPED");
1879            if (ap->mAudioTrack != 0) {
1880                ap->mAudioTrack->stop();
1881            }
1882            break;
1883        case SL_PLAYSTATE_PAUSED:
1884            SL_LOGV("setting AudioPlayer to SL_PLAYSTATE_PAUSED");
1885            if (ap->mAudioTrack != 0) {
1886                ap->mAudioTrack->pause();
1887            }
1888            break;
1889        case SL_PLAYSTATE_PLAYING:
1890            SL_LOGV("setting AudioPlayer to SL_PLAYSTATE_PLAYING");
1891            if (ap->mAudioTrack != 0) {
1892                // instead of ap->mAudioTrack->start();
1893                ap->mDeferredStart = true;
1894            }
1895            break;
1896        default:
1897            // checked by caller, should not happen
1898            break;
1899        }
1900        break;
1901
1902    case AUDIOPLAYER_FROM_URIFD:      // intended fall-through
1903    case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:     // intended fall-through
1904    case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:  // intended fall-through
1905    case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1906        // FIXME report and use the return code to the lock mechanism, which is where play state
1907        //   changes are updated (see object_unlock_exclusive_attributes())
1908        aplayer_setPlayState(ap->mAPlayer, playState, &(ap->mAndroidObjState));
1909        break;
1910    default:
1911        SL_LOGE(ERROR_PLAYERSETPLAYSTATE_UNEXPECTED_OBJECT_TYPE_D, ap->mAndroidObjType);
1912        break;
1913    }
1914}
1915
1916
1917//-----------------------------------------------------------------------------
1918// call when either player event flags, marker position, or position update period changes
1919void android_audioPlayer_usePlayEventMask(CAudioPlayer *ap) {
1920    IPlay *pPlayItf = &ap->mPlay;
1921    SLuint32 eventFlags = pPlayItf->mEventFlags;
1922    /*switch(ap->mAndroidObjType) {
1923    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:*/
1924
1925    if (ap->mAPlayer != 0) {
1926        assert(ap->mAudioTrack == 0);
1927        ap->mAPlayer->setPlayEvents((int32_t) eventFlags, (int32_t) pPlayItf->mMarkerPosition,
1928                (int32_t) pPlayItf->mPositionUpdatePeriod);
1929        return;
1930    }
1931
1932    if (ap->mAudioTrack == 0) {
1933        return;
1934    }
1935
1936    if (eventFlags & SL_PLAYEVENT_HEADATMARKER) {
1937        ap->mAudioTrack->setMarkerPosition((uint32_t)((((int64_t)pPlayItf->mMarkerPosition
1938                * sles_to_android_sampleRate(ap->mSampleRateMilliHz)))/1000));
1939    } else {
1940        // clear marker
1941        ap->mAudioTrack->setMarkerPosition(0);
1942    }
1943
1944    if (eventFlags & SL_PLAYEVENT_HEADATNEWPOS) {
1945         ap->mAudioTrack->setPositionUpdatePeriod(
1946                (uint32_t)((((int64_t)pPlayItf->mPositionUpdatePeriod
1947                * sles_to_android_sampleRate(ap->mSampleRateMilliHz)))/1000));
1948    } else {
1949        // clear periodic update
1950        ap->mAudioTrack->setPositionUpdatePeriod(0);
1951    }
1952
1953    if (eventFlags & SL_PLAYEVENT_HEADATEND) {
1954        // nothing to do for SL_PLAYEVENT_HEADATEND, callback event will be checked against mask
1955    }
1956
1957    if (eventFlags & SL_PLAYEVENT_HEADMOVING) {
1958        // FIXME support SL_PLAYEVENT_HEADMOVING
1959        SL_LOGD("[ FIXME: IPlay_SetCallbackEventsMask(SL_PLAYEVENT_HEADMOVING) on an "
1960            "SL_OBJECTID_AUDIOPLAYER to be implemented ]");
1961    }
1962    if (eventFlags & SL_PLAYEVENT_HEADSTALLED) {
1963        // nothing to do for SL_PLAYEVENT_HEADSTALLED, callback event will be checked against mask
1964    }
1965
1966}
1967
1968
1969//-----------------------------------------------------------------------------
1970SLresult android_audioPlayer_getDuration(IPlay *pPlayItf, SLmillisecond *pDurMsec) {
1971    CAudioPlayer *ap = (CAudioPlayer *)pPlayItf->mThis;
1972    switch(ap->mAndroidObjType) {
1973
1974      case AUDIOPLAYER_FROM_URIFD:  // intended fall-through
1975      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE: {
1976        int32_t durationMsec = ANDROID_UNKNOWN_TIME;
1977        if (ap->mAPlayer != 0) {
1978            ap->mAPlayer->getDurationMsec(&durationMsec);
1979        }
1980        *pDurMsec = durationMsec == ANDROID_UNKNOWN_TIME ? SL_TIME_UNKNOWN : durationMsec;
1981        break;
1982      }
1983
1984      case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE: // intended fall-through
1985      case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
1986      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1987      default: {
1988        *pDurMsec = SL_TIME_UNKNOWN;
1989      }
1990    }
1991    return SL_RESULT_SUCCESS;
1992}
1993
1994
1995//-----------------------------------------------------------------------------
1996void android_audioPlayer_getPosition(IPlay *pPlayItf, SLmillisecond *pPosMsec) {
1997    CAudioPlayer *ap = (CAudioPlayer *)pPlayItf->mThis;
1998    switch(ap->mAndroidObjType) {
1999
2000      case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
2001        if ((ap->mSampleRateMilliHz == UNKNOWN_SAMPLERATE) || (ap->mAudioTrack == 0)) {
2002            *pPosMsec = 0;
2003        } else {
2004            uint32_t positionInFrames;
2005            ap->mAudioTrack->getPosition(&positionInFrames);
2006            *pPosMsec = ((int64_t)positionInFrames * 1000) /
2007                    sles_to_android_sampleRate(ap->mSampleRateMilliHz);
2008        }
2009        break;
2010
2011      case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:    // intended fall-through
2012      case AUDIOPLAYER_FROM_URIFD:
2013      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
2014      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE: {
2015        int32_t posMsec = ANDROID_UNKNOWN_TIME;
2016        if (ap->mAPlayer != 0) {
2017            ap->mAPlayer->getPositionMsec(&posMsec);
2018        }
2019        *pPosMsec = posMsec == ANDROID_UNKNOWN_TIME ? 0 : posMsec;
2020        break;
2021      }
2022
2023      default:
2024        *pPosMsec = 0;
2025    }
2026}
2027
2028
2029//-----------------------------------------------------------------------------
2030SLresult android_audioPlayer_seek(CAudioPlayer *ap, SLmillisecond posMsec) {
2031    SLresult result = SL_RESULT_SUCCESS;
2032
2033    switch(ap->mAndroidObjType) {
2034
2035      case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:      // intended fall-through
2036      case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:
2037      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
2038        result = SL_RESULT_FEATURE_UNSUPPORTED;
2039        break;
2040
2041      case AUDIOPLAYER_FROM_URIFD:                   // intended fall-through
2042      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
2043        if (ap->mAPlayer != 0) {
2044            ap->mAPlayer->seek(posMsec);
2045        }
2046        break;
2047
2048      default:
2049        break;
2050    }
2051    return result;
2052}
2053
2054
2055//-----------------------------------------------------------------------------
2056SLresult android_audioPlayer_loop(CAudioPlayer *ap, SLboolean loopEnable) {
2057    SLresult result = SL_RESULT_SUCCESS;
2058
2059    switch (ap->mAndroidObjType) {
2060    case AUDIOPLAYER_FROM_URIFD:
2061    // case AUDIOPLAY_FROM_URIFD_TO_PCM_BUFFERQUEUE:
2062    //      would actually work, but what's the point?
2063      if (ap->mAPlayer != 0) {
2064        ap->mAPlayer->loop((bool)loopEnable);
2065      }
2066      break;
2067    default:
2068      result = SL_RESULT_FEATURE_UNSUPPORTED;
2069      break;
2070    }
2071    return result;
2072}
2073
2074
2075//-----------------------------------------------------------------------------
2076SLresult android_audioPlayer_setBufferingUpdateThresholdPerMille(CAudioPlayer *ap,
2077        SLpermille threshold) {
2078    SLresult result = SL_RESULT_SUCCESS;
2079
2080    switch (ap->mAndroidObjType) {
2081      case AUDIOPLAYER_FROM_URIFD:
2082        if (ap->mAPlayer != 0) {
2083            ap->mAPlayer->setBufferingUpdateThreshold(threshold / 10);
2084        }
2085        break;
2086
2087      default: {}
2088    }
2089
2090    return result;
2091}
2092
2093
2094//-----------------------------------------------------------------------------
2095void android_audioPlayer_bufferQueue_onRefilled_l(CAudioPlayer *ap) {
2096    // the AudioTrack associated with the AudioPlayer receiving audio from a PCM buffer
2097    // queue was stopped when the queue become empty, we restart as soon as a new buffer
2098    // has been enqueued since we're in playing state
2099    if (ap->mAudioTrack != 0) {
2100        // instead of ap->mAudioTrack->start();
2101        ap->mDeferredStart = true;
2102    }
2103
2104    // when the queue became empty, an underflow on the prefetch status itf was sent. Now the queue
2105    // has received new data, signal it has sufficient data
2106    if (IsInterfaceInitialized(&(ap->mObject), MPH_PREFETCHSTATUS)) {
2107        // we wouldn't have been called unless we were previously in the underflow state
2108        assert(SL_PREFETCHSTATUS_UNDERFLOW == ap->mPrefetchStatus.mStatus);
2109        assert(0 == ap->mPrefetchStatus.mLevel);
2110        ap->mPrefetchStatus.mStatus = SL_PREFETCHSTATUS_SUFFICIENTDATA;
2111        ap->mPrefetchStatus.mLevel = 1000;
2112        // callback or no callback?
2113        SLuint32 prefetchEvents = ap->mPrefetchStatus.mCallbackEventsMask &
2114                (SL_PREFETCHEVENT_STATUSCHANGE | SL_PREFETCHEVENT_FILLLEVELCHANGE);
2115        if (SL_PREFETCHEVENT_NONE != prefetchEvents) {
2116            ap->mPrefetchStatus.mDeferredPrefetchCallback = ap->mPrefetchStatus.mCallback;
2117            ap->mPrefetchStatus.mDeferredPrefetchContext  = ap->mPrefetchStatus.mContext;
2118            ap->mPrefetchStatus.mDeferredPrefetchEvents   = prefetchEvents;
2119        }
2120    }
2121}
2122
2123
2124//-----------------------------------------------------------------------------
2125/*
2126 * BufferQueue::Clear
2127 */
2128SLresult android_audioPlayer_bufferQueue_onClear(CAudioPlayer *ap) {
2129    SLresult result = SL_RESULT_SUCCESS;
2130
2131    switch (ap->mAndroidObjType) {
2132    //-----------------------------------
2133    // AudioTrack
2134    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
2135        if (ap->mAudioTrack != 0) {
2136            ap->mAudioTrack->flush();
2137        }
2138        break;
2139    default:
2140        result = SL_RESULT_INTERNAL_ERROR;
2141        break;
2142    }
2143
2144    return result;
2145}
2146
2147
2148//-----------------------------------------------------------------------------
2149SLresult android_audioPlayer_androidBufferQueue_registerCallback_l(CAudioPlayer *ap) {
2150    SLresult result = SL_RESULT_SUCCESS;
2151    assert(ap->mAPlayer != 0);
2152    // FIXME investigate why these two cases are not handled symmetrically any more
2153    switch (ap->mAndroidObjType) {
2154      case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE: {
2155        } break;
2156      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE: {
2157          android::AacBqToPcmCbRenderer* dec =
2158                  static_cast<android::AacBqToPcmCbRenderer*>(ap->mAPlayer.get());
2159          dec->registerSourceQueueCallback((const void*)ap /*user*/,
2160                  ap->mAndroidBufferQueue.mContext /*context*/,
2161                  (const void*)&(ap->mAndroidBufferQueue.mItf) /*caller*/);
2162        } break;
2163      default:
2164        SL_LOGE("Error registering AndroidBufferQueue callback: unexpected object type %d",
2165                ap->mAndroidObjType);
2166        result = SL_RESULT_INTERNAL_ERROR;
2167        break;
2168    }
2169    return result;
2170}
2171
2172//-----------------------------------------------------------------------------
2173void android_audioPlayer_androidBufferQueue_clear_l(CAudioPlayer *ap) {
2174    switch (ap->mAndroidObjType) {
2175    case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:
2176      if (ap->mAPlayer != 0) {
2177        android::StreamPlayer* splr = static_cast<android::StreamPlayer*>(ap->mAPlayer.get());
2178        splr->appClear_l();
2179      } break;
2180    case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
2181      // nothing to do here, fall through
2182    default:
2183      break;
2184    }
2185}
2186
2187void android_audioPlayer_androidBufferQueue_onRefilled_l(CAudioPlayer *ap) {
2188    switch (ap->mAndroidObjType) {
2189    case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:
2190      if (ap->mAPlayer != 0) {
2191        android::StreamPlayer* splr = static_cast<android::StreamPlayer*>(ap->mAPlayer.get());
2192        splr->queueRefilled();
2193      } break;
2194    case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
2195      // FIXME this may require waking up the decoder if it is currently starved and isn't polling
2196    default:
2197      break;
2198    }
2199}
2200