AudioPlayer_to_android.cpp revision f5d4ad08eb6318676651f5b026ed8ddd85d122e7
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    default:
842        break;
843    }
844
845    ap->mCallbackProtector->exitCb();
846}
847
848
849//-----------------------------------------------------------------------------
850SLresult android_audioPlayer_checkSourceSink(CAudioPlayer *pAudioPlayer)
851{
852    // verify that the locator types for the source / sink combination is supported
853    pAudioPlayer->mAndroidObjType = audioPlayer_getAndroidObjectTypeForSourceSink(pAudioPlayer);
854    if (INVALID_TYPE == pAudioPlayer->mAndroidObjType) {
855        return SL_RESULT_PARAMETER_INVALID;
856    }
857
858    const SLDataSource *pAudioSrc = &pAudioPlayer->mDataSource.u.mSource;
859    const SLDataSink *pAudioSnk = &pAudioPlayer->mDataSink.u.mSink;
860
861    // format check:
862    const SLuint32 sourceLocatorType = *(SLuint32 *)pAudioSrc->pLocator;
863    const SLuint32 sinkLocatorType = *(SLuint32 *)pAudioSnk->pLocator;
864    const SLuint32 sourceFormatType = *(SLuint32 *)pAudioSrc->pFormat;
865    const SLuint32 sinkFormatType = *(SLuint32 *)pAudioSnk->pFormat;
866
867    switch (sourceLocatorType) {
868    //------------------
869    //   Buffer Queues
870    case SL_DATALOCATOR_BUFFERQUEUE:
871    case SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE:
872        {
873        SLDataLocator_BufferQueue *dl_bq =  (SLDataLocator_BufferQueue *) pAudioSrc->pLocator;
874
875        // Buffer format
876        switch (sourceFormatType) {
877        //     currently only PCM buffer queues are supported,
878        case SL_DATAFORMAT_PCM: {
879            SLDataFormat_PCM *df_pcm = (SLDataFormat_PCM *) pAudioSrc->pFormat;
880            switch (df_pcm->numChannels) {
881            case 1:
882            case 2:
883                break;
884            default:
885                // this should have already been rejected by checkDataFormat
886                SL_LOGE("Cannot create audio player: unsupported " \
887                    "PCM data source with %u channels", (unsigned) df_pcm->numChannels);
888                return SL_RESULT_CONTENT_UNSUPPORTED;
889            }
890            switch (df_pcm->samplesPerSec) {
891            case SL_SAMPLINGRATE_8:
892            case SL_SAMPLINGRATE_11_025:
893            case SL_SAMPLINGRATE_12:
894            case SL_SAMPLINGRATE_16:
895            case SL_SAMPLINGRATE_22_05:
896            case SL_SAMPLINGRATE_24:
897            case SL_SAMPLINGRATE_32:
898            case SL_SAMPLINGRATE_44_1:
899            case SL_SAMPLINGRATE_48:
900                break;
901            case SL_SAMPLINGRATE_64:
902            case SL_SAMPLINGRATE_88_2:
903            case SL_SAMPLINGRATE_96:
904            case SL_SAMPLINGRATE_192:
905            default:
906                SL_LOGE("Cannot create audio player: unsupported sample rate %u milliHz",
907                    (unsigned) df_pcm->samplesPerSec);
908                return SL_RESULT_CONTENT_UNSUPPORTED;
909            }
910            switch (df_pcm->bitsPerSample) {
911            case SL_PCMSAMPLEFORMAT_FIXED_8:
912            case SL_PCMSAMPLEFORMAT_FIXED_16:
913                break;
914                // others
915            default:
916                // this should have already been rejected by checkDataFormat
917                SL_LOGE("Cannot create audio player: unsupported sample bit depth %u",
918                        (SLuint32)df_pcm->bitsPerSample);
919                return SL_RESULT_CONTENT_UNSUPPORTED;
920            }
921            switch (df_pcm->containerSize) {
922            case 8:
923            case 16:
924                break;
925                // others
926            default:
927                SL_LOGE("Cannot create audio player: unsupported container size %u",
928                    (unsigned) df_pcm->containerSize);
929                return SL_RESULT_CONTENT_UNSUPPORTED;
930            }
931            // df_pcm->channelMask: the earlier platform-independent check and the
932            //     upcoming check by sles_to_android_channelMaskOut are sufficient
933            switch (df_pcm->endianness) {
934            case SL_BYTEORDER_LITTLEENDIAN:
935                break;
936            case SL_BYTEORDER_BIGENDIAN:
937                SL_LOGE("Cannot create audio player: unsupported big-endian byte order");
938                return SL_RESULT_CONTENT_UNSUPPORTED;
939                // native is proposed but not yet in spec
940            default:
941                SL_LOGE("Cannot create audio player: unsupported byte order %u",
942                    (unsigned) df_pcm->endianness);
943                return SL_RESULT_CONTENT_UNSUPPORTED;
944            }
945            } //case SL_DATAFORMAT_PCM
946            break;
947        case SL_DATAFORMAT_MIME:
948        case XA_DATAFORMAT_RAWIMAGE:
949            SL_LOGE("Cannot create audio player with buffer queue data source "
950                "without SL_DATAFORMAT_PCM format");
951            return SL_RESULT_CONTENT_UNSUPPORTED;
952        default:
953            // invalid data format is detected earlier
954            assert(false);
955            return SL_RESULT_INTERNAL_ERROR;
956        } // switch (sourceFormatType)
957        } // case SL_DATALOCATOR_BUFFERQUEUE or SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE
958        break;
959    //------------------
960    //   URI
961    case SL_DATALOCATOR_URI:
962        {
963        SLDataLocator_URI *dl_uri =  (SLDataLocator_URI *) pAudioSrc->pLocator;
964        if (NULL == dl_uri->URI) {
965            return SL_RESULT_PARAMETER_INVALID;
966        }
967        // URI format
968        switch (sourceFormatType) {
969        case SL_DATAFORMAT_MIME:
970            break;
971        case SL_DATAFORMAT_PCM:
972        case XA_DATAFORMAT_RAWIMAGE:
973            SL_LOGE("Cannot create audio player with SL_DATALOCATOR_URI data source without "
974                "SL_DATAFORMAT_MIME format");
975            return SL_RESULT_CONTENT_UNSUPPORTED;
976        } // switch (sourceFormatType)
977        // decoding format check
978        if ((sinkLocatorType != SL_DATALOCATOR_OUTPUTMIX) &&
979                !audioPlayer_isSupportedNonOutputMixSink(pAudioSnk)) {
980            return SL_RESULT_CONTENT_UNSUPPORTED;
981        }
982        } // case SL_DATALOCATOR_URI
983        break;
984    //------------------
985    //   File Descriptor
986    case SL_DATALOCATOR_ANDROIDFD:
987        {
988        // fd is already non null
989        switch (sourceFormatType) {
990        case SL_DATAFORMAT_MIME:
991            break;
992        case SL_DATAFORMAT_PCM:
993            // FIXME implement
994            SL_LOGD("[ FIXME implement PCM FD data sources ]");
995            break;
996        case XA_DATAFORMAT_RAWIMAGE:
997            SL_LOGE("Cannot create audio player with SL_DATALOCATOR_ANDROIDFD data source "
998                "without SL_DATAFORMAT_MIME or SL_DATAFORMAT_PCM format");
999            return SL_RESULT_CONTENT_UNSUPPORTED;
1000        default:
1001            // invalid data format is detected earlier
1002            assert(false);
1003            return SL_RESULT_INTERNAL_ERROR;
1004        } // switch (sourceFormatType)
1005        if ((sinkLocatorType != SL_DATALOCATOR_OUTPUTMIX) &&
1006                !audioPlayer_isSupportedNonOutputMixSink(pAudioSnk)) {
1007            return SL_RESULT_CONTENT_UNSUPPORTED;
1008        }
1009        } // case SL_DATALOCATOR_ANDROIDFD
1010        break;
1011    //------------------
1012    //   Stream
1013    case SL_DATALOCATOR_ANDROIDBUFFERQUEUE:
1014    {
1015        switch (sourceFormatType) {
1016        case SL_DATAFORMAT_MIME:
1017        {
1018            SLDataFormat_MIME *df_mime = (SLDataFormat_MIME *) pAudioSrc->pFormat;
1019            if (NULL == df_mime) {
1020                SL_LOGE("MIME type null invalid");
1021                return SL_RESULT_CONTENT_UNSUPPORTED;
1022            }
1023            SL_LOGD("source MIME is %s", (char*)df_mime->mimeType);
1024            switch(df_mime->containerType) {
1025            case SL_CONTAINERTYPE_MPEG_TS:
1026                if (strcasecmp((char*)df_mime->mimeType, ANDROID_MIME_MP2TS)) {
1027                    SL_LOGE("Invalid MIME (%s) for container SL_CONTAINERTYPE_MPEG_TS, expects %s",
1028                            (char*)df_mime->mimeType, ANDROID_MIME_MP2TS);
1029                    return SL_RESULT_CONTENT_UNSUPPORTED;
1030                }
1031                break;
1032            case SL_CONTAINERTYPE_RAW:
1033            case SL_CONTAINERTYPE_AAC:
1034                if (strcasecmp((char*)df_mime->mimeType, ANDROID_MIME_AACADTS) &&
1035                        strcasecmp((char*)df_mime->mimeType,
1036                                ANDROID_MIME_AACADTS_ANDROID_FRAMEWORK)) {
1037                    SL_LOGE("Invalid MIME (%s) for container type %d, expects %s",
1038                            (char*)df_mime->mimeType, df_mime->containerType,
1039                            ANDROID_MIME_AACADTS);
1040                    return SL_RESULT_CONTENT_UNSUPPORTED;
1041                }
1042                break;
1043            default:
1044                SL_LOGE("Cannot create player with SL_DATALOCATOR_ANDROIDBUFFERQUEUE data source "
1045                                        "that is not fed MPEG-2 TS data or AAC ADTS data");
1046                return SL_RESULT_CONTENT_UNSUPPORTED;
1047            }
1048        }
1049        break;
1050        default:
1051            SL_LOGE("Cannot create player with SL_DATALOCATOR_ANDROIDBUFFERQUEUE data source "
1052                    "without SL_DATAFORMAT_MIME format");
1053            return SL_RESULT_CONTENT_UNSUPPORTED;
1054        }
1055    }
1056    break; // case SL_DATALOCATOR_ANDROIDBUFFERQUEUE
1057    //------------------
1058    //   Address
1059    case SL_DATALOCATOR_ADDRESS:
1060    case SL_DATALOCATOR_IODEVICE:
1061    case SL_DATALOCATOR_OUTPUTMIX:
1062    case XA_DATALOCATOR_NATIVEDISPLAY:
1063    case SL_DATALOCATOR_MIDIBUFFERQUEUE:
1064        SL_LOGE("Cannot create audio player with data locator type 0x%x",
1065                (unsigned) sourceLocatorType);
1066        return SL_RESULT_CONTENT_UNSUPPORTED;
1067    default:
1068        SL_LOGE("Cannot create audio player with invalid data locator type 0x%x",
1069                (unsigned) sourceLocatorType);
1070        return SL_RESULT_PARAMETER_INVALID;
1071    }// switch (locatorType)
1072
1073    return SL_RESULT_SUCCESS;
1074}
1075
1076
1077//-----------------------------------------------------------------------------
1078// Callback associated with an AudioTrack of an SL ES AudioPlayer that gets its data
1079// from a buffer queue. This will not be called once the AudioTrack has been destroyed.
1080static void audioTrack_callBack_pullFromBuffQueue(int event, void* user, void *info) {
1081    CAudioPlayer *ap = (CAudioPlayer *)user;
1082
1083    if (!android::CallbackProtector::enterCbIfOk(ap->mCallbackProtector)) {
1084        // it is not safe to enter the callback (the track is about to go away)
1085        return;
1086    }
1087
1088    void * callbackPContext = NULL;
1089    switch(event) {
1090
1091    case android::AudioTrack::EVENT_MORE_DATA: {
1092        //SL_LOGV("received event EVENT_MORE_DATA from AudioTrack TID=%d", gettid());
1093        slBufferQueueCallback callback = NULL;
1094        slPrefetchCallback prefetchCallback = NULL;
1095        void *prefetchContext = NULL;
1096        SLuint32 prefetchEvents = SL_PREFETCHEVENT_NONE;
1097        android::AudioTrack::Buffer* pBuff = (android::AudioTrack::Buffer*)info;
1098
1099        // retrieve data from the buffer queue
1100        interface_lock_exclusive(&ap->mBufferQueue);
1101
1102        if (ap->mBufferQueue.mState.count != 0) {
1103            //SL_LOGV("nbBuffers in queue = %u",ap->mBufferQueue.mState.count);
1104            assert(ap->mBufferQueue.mFront != ap->mBufferQueue.mRear);
1105
1106            BufferHeader *oldFront = ap->mBufferQueue.mFront;
1107            BufferHeader *newFront = &oldFront[1];
1108
1109            // declared as void * because this code supports both 8-bit and 16-bit PCM data
1110            void *pSrc = (char *)oldFront->mBuffer + ap->mBufferQueue.mSizeConsumed;
1111            if (ap->mBufferQueue.mSizeConsumed + pBuff->size < oldFront->mSize) {
1112                // can't consume the whole or rest of the buffer in one shot
1113                ap->mBufferQueue.mSizeConsumed += pBuff->size;
1114                // leave pBuff->size untouched
1115                // consume data
1116                // FIXME can we avoid holding the lock during the copy?
1117                memcpy (pBuff->raw, pSrc, pBuff->size);
1118            } else {
1119                // finish consuming the buffer or consume the buffer in one shot
1120                pBuff->size = oldFront->mSize - ap->mBufferQueue.mSizeConsumed;
1121                ap->mBufferQueue.mSizeConsumed = 0;
1122
1123                if (newFront ==
1124                        &ap->mBufferQueue.mArray
1125                            [ap->mBufferQueue.mNumBuffers + 1])
1126                {
1127                    newFront = ap->mBufferQueue.mArray;
1128                }
1129                ap->mBufferQueue.mFront = newFront;
1130
1131                ap->mBufferQueue.mState.count--;
1132                ap->mBufferQueue.mState.playIndex++;
1133
1134                // consume data
1135                // FIXME can we avoid holding the lock during the copy?
1136                memcpy (pBuff->raw, pSrc, pBuff->size);
1137
1138                // data has been consumed, and the buffer queue state has been updated
1139                // we will notify the client if applicable
1140                callback = ap->mBufferQueue.mCallback;
1141                // save callback data
1142                callbackPContext = ap->mBufferQueue.mContext;
1143            }
1144        } else { // empty queue
1145            // signal no data available
1146            pBuff->size = 0;
1147
1148            // signal we're at the end of the content, but don't pause (see note in function)
1149            audioPlayer_dispatch_headAtEnd_lockPlay(ap, false /*set state to paused?*/, false);
1150
1151            // signal underflow to prefetch status itf
1152            if (IsInterfaceInitialized(&(ap->mObject), MPH_PREFETCHSTATUS)) {
1153                ap->mPrefetchStatus.mStatus = SL_PREFETCHSTATUS_UNDERFLOW;
1154                ap->mPrefetchStatus.mLevel = 0;
1155                // callback or no callback?
1156                prefetchEvents = ap->mPrefetchStatus.mCallbackEventsMask &
1157                        (SL_PREFETCHEVENT_STATUSCHANGE | SL_PREFETCHEVENT_FILLLEVELCHANGE);
1158                if (SL_PREFETCHEVENT_NONE != prefetchEvents) {
1159                    prefetchCallback = ap->mPrefetchStatus.mCallback;
1160                    prefetchContext  = ap->mPrefetchStatus.mContext;
1161                }
1162            }
1163
1164            // stop the track so it restarts playing faster when new data is enqueued
1165            ap->mAudioTrack->stop();
1166        }
1167        interface_unlock_exclusive(&ap->mBufferQueue);
1168
1169        // notify client
1170        if (NULL != prefetchCallback) {
1171            assert(SL_PREFETCHEVENT_NONE != prefetchEvents);
1172            // spec requires separate callbacks for each event
1173            if (prefetchEvents & SL_PREFETCHEVENT_STATUSCHANGE) {
1174                (*prefetchCallback)(&ap->mPrefetchStatus.mItf, prefetchContext,
1175                        SL_PREFETCHEVENT_STATUSCHANGE);
1176            }
1177            if (prefetchEvents & SL_PREFETCHEVENT_FILLLEVELCHANGE) {
1178                (*prefetchCallback)(&ap->mPrefetchStatus.mItf, prefetchContext,
1179                        SL_PREFETCHEVENT_FILLLEVELCHANGE);
1180            }
1181        }
1182        if (NULL != callback) {
1183            (*callback)(&ap->mBufferQueue.mItf, callbackPContext);
1184        }
1185    }
1186    break;
1187
1188    case android::AudioTrack::EVENT_MARKER:
1189        //SL_LOGI("received event EVENT_MARKER from AudioTrack");
1190        audioTrack_handleMarker_lockPlay(ap);
1191        break;
1192
1193    case android::AudioTrack::EVENT_NEW_POS:
1194        //SL_LOGI("received event EVENT_NEW_POS from AudioTrack");
1195        audioTrack_handleNewPos_lockPlay(ap);
1196        break;
1197
1198    case android::AudioTrack::EVENT_UNDERRUN:
1199        //SL_LOGI("received event EVENT_UNDERRUN from AudioTrack");
1200        audioTrack_handleUnderrun_lockPlay(ap);
1201        break;
1202
1203    default:
1204        // FIXME where does the notification of SL_PLAYEVENT_HEADMOVING fit?
1205        SL_LOGE("Encountered unknown AudioTrack event %d for CAudioPlayer %p", event,
1206                (CAudioPlayer *)user);
1207        break;
1208    }
1209
1210    ap->mCallbackProtector->exitCb();
1211}
1212
1213
1214//-----------------------------------------------------------------------------
1215SLresult android_audioPlayer_create(CAudioPlayer *pAudioPlayer) {
1216
1217    SLresult result = SL_RESULT_SUCCESS;
1218    // pAudioPlayer->mAndroidObjType has been set in audioPlayer_getAndroidObjectTypeForSourceSink()
1219    if (INVALID_TYPE == pAudioPlayer->mAndroidObjType) {
1220        audioPlayer_setInvalid(pAudioPlayer);
1221        result = SL_RESULT_PARAMETER_INVALID;
1222    } else {
1223
1224        // These initializations are in the same order as the field declarations in classes.h
1225
1226        // FIXME Consolidate initializations (many of these already in IEngine_CreateAudioPlayer)
1227        // mAndroidObjType: see above comment
1228        pAudioPlayer->mAndroidObjState = ANDROID_UNINITIALIZED;
1229        pAudioPlayer->mSessionId = android::AudioSystem::newAudioSessionId();
1230        pAudioPlayer->mStreamType = ANDROID_DEFAULT_OUTPUT_STREAM_TYPE;
1231
1232        // mAudioTrack
1233        pAudioPlayer->mCallbackProtector = new android::CallbackProtector();
1234        // mAPLayer
1235        // mAuxEffect
1236
1237        pAudioPlayer->mAuxSendLevel = 0;
1238        pAudioPlayer->mAmplFromDirectLevel = 1.0f; // matches initial mDirectLevel value
1239        pAudioPlayer->mDeferredStart = false;
1240
1241        // Already initialized in IEngine_CreateAudioPlayer, to be consolidated
1242        pAudioPlayer->mDirectLevel = 0; // no attenuation
1243
1244        // This section re-initializes interface-specific fields that
1245        // can be set or used regardless of whether the interface is
1246        // exposed on the AudioPlayer or not
1247
1248        // Only AudioTrack supports a non-trivial playback rate
1249        switch (pAudioPlayer->mAndroidObjType) {
1250        case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
1251            pAudioPlayer->mPlaybackRate.mMinRate = AUDIOTRACK_MIN_PLAYBACKRATE_PERMILLE;
1252            pAudioPlayer->mPlaybackRate.mMaxRate = AUDIOTRACK_MAX_PLAYBACKRATE_PERMILLE;
1253            break;
1254        default:
1255            // use the default range
1256            break;
1257        }
1258
1259    }
1260
1261    return result;
1262}
1263
1264
1265//-----------------------------------------------------------------------------
1266SLresult android_audioPlayer_setConfig(CAudioPlayer *ap, const SLchar *configKey,
1267        const void *pConfigValue, SLuint32 valueSize) {
1268
1269    SLresult result;
1270
1271    assert(NULL != ap && NULL != configKey && NULL != pConfigValue);
1272    if(strcmp((const char*)configKey, (const char*)SL_ANDROID_KEY_STREAM_TYPE) == 0) {
1273
1274        // stream type
1275        if (KEY_STREAM_TYPE_PARAMSIZE > valueSize) {
1276            SL_LOGE(ERROR_CONFIG_VALUESIZE_TOO_LOW);
1277            result = SL_RESULT_BUFFER_INSUFFICIENT;
1278        } else {
1279            result = audioPlayer_setStreamType(ap, *(SLuint32*)pConfigValue);
1280        }
1281
1282    } else {
1283        SL_LOGE(ERROR_CONFIG_UNKNOWN_KEY);
1284        result = SL_RESULT_PARAMETER_INVALID;
1285    }
1286
1287    return result;
1288}
1289
1290
1291//-----------------------------------------------------------------------------
1292SLresult android_audioPlayer_getConfig(CAudioPlayer* ap, const SLchar *configKey,
1293        SLuint32* pValueSize, void *pConfigValue) {
1294
1295    SLresult result;
1296
1297    assert(NULL != ap && NULL != configKey && NULL != pValueSize);
1298    if(strcmp((const char*)configKey, (const char*)SL_ANDROID_KEY_STREAM_TYPE) == 0) {
1299
1300        // stream type
1301        if (NULL == pConfigValue) {
1302            result = SL_RESULT_SUCCESS;
1303        } else if (KEY_STREAM_TYPE_PARAMSIZE > *pValueSize) {
1304            SL_LOGE(ERROR_CONFIG_VALUESIZE_TOO_LOW);
1305            result = SL_RESULT_BUFFER_INSUFFICIENT;
1306        } else {
1307            result = audioPlayer_getStreamType(ap, (SLint32*)pConfigValue);
1308        }
1309        *pValueSize = KEY_STREAM_TYPE_PARAMSIZE;
1310
1311    } else {
1312        SL_LOGE(ERROR_CONFIG_UNKNOWN_KEY);
1313        result = SL_RESULT_PARAMETER_INVALID;
1314    }
1315
1316    return result;
1317}
1318
1319
1320//-----------------------------------------------------------------------------
1321// FIXME abstract out the diff between CMediaPlayer and CAudioPlayer
1322SLresult android_audioPlayer_realize(CAudioPlayer *pAudioPlayer, SLboolean async) {
1323
1324    SLresult result = SL_RESULT_SUCCESS;
1325    SL_LOGV("Realize pAudioPlayer=%p", pAudioPlayer);
1326
1327    switch (pAudioPlayer->mAndroidObjType) {
1328    //-----------------------------------
1329    // AudioTrack
1330    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
1331        {
1332        // initialize platform-specific CAudioPlayer fields
1333
1334        SLDataLocator_BufferQueue *dl_bq =  (SLDataLocator_BufferQueue *)
1335                pAudioPlayer->mDynamicSource.mDataSource;
1336        SLDataFormat_PCM *df_pcm = (SLDataFormat_PCM *)
1337                pAudioPlayer->mDynamicSource.mDataSource->pFormat;
1338
1339        uint32_t sampleRate = sles_to_android_sampleRate(df_pcm->samplesPerSec);
1340
1341        pAudioPlayer->mAudioTrack = new android::AudioTrackProxy(new android::AudioTrack(
1342                pAudioPlayer->mStreamType,                           // streamType
1343                sampleRate,                                          // sampleRate
1344                sles_to_android_sampleFormat(df_pcm->bitsPerSample), // format
1345                sles_to_android_channelMaskOut(df_pcm->numChannels, df_pcm->channelMask),
1346                                                                     //channel mask
1347                0,                                                   // frameCount (here min)
1348                0,                                                   // flags
1349                audioTrack_callBack_pullFromBuffQueue,               // callback
1350                (void *) pAudioPlayer,                               // user
1351                0      // FIXME find appropriate frame count         // notificationFrame
1352                , pAudioPlayer->mSessionId
1353                ));
1354        android::status_t status = pAudioPlayer->mAudioTrack->initCheck();
1355        if (status != android::NO_ERROR) {
1356            SL_LOGE("AudioTrack::initCheck status %u", status);
1357            result = SL_RESULT_CONTENT_UNSUPPORTED;
1358            pAudioPlayer->mAudioTrack.clear();
1359            return result;
1360        }
1361
1362        // initialize platform-independent CAudioPlayer fields
1363
1364        pAudioPlayer->mNumChannels = df_pcm->numChannels;
1365        pAudioPlayer->mSampleRateMilliHz = df_pcm->samplesPerSec; // Note: bad field name in SL ES
1366
1367        // This use case does not have a separate "prepare" step
1368        pAudioPlayer->mAndroidObjState = ANDROID_READY;
1369        }
1370        break;
1371    //-----------------------------------
1372    // MediaPlayer
1373    case AUDIOPLAYER_FROM_URIFD: {
1374        assert(pAudioPlayer->mAndroidObjState == ANDROID_UNINITIALIZED);
1375        assert(pAudioPlayer->mNumChannels == UNKNOWN_NUMCHANNELS);
1376        assert(pAudioPlayer->mSampleRateMilliHz == UNKNOWN_SAMPLERATE);
1377        assert(pAudioPlayer->mAudioTrack == 0);
1378
1379        AudioPlayback_Parameters app;
1380        app.sessionId = pAudioPlayer->mSessionId;
1381        app.streamType = pAudioPlayer->mStreamType;
1382
1383        pAudioPlayer->mAPlayer = new android::LocAVPlayer(&app, false /*hasVideo*/);
1384        pAudioPlayer->mAPlayer->init(sfplayer_handlePrefetchEvent,
1385                        (void*)pAudioPlayer /*notifUSer*/);
1386
1387        switch (pAudioPlayer->mDataSource.mLocator.mLocatorType) {
1388            case SL_DATALOCATOR_URI: {
1389                // The legacy implementation ran Stagefright within the application process, and
1390                // so allowed local pathnames specified by URI that were openable by
1391                // the application but were not openable by mediaserver.
1392                // The current implementation runs Stagefright (mostly) within mediaserver,
1393                // which runs as a different UID and likely a different current working directory.
1394                // For backwards compatibility with any applications which may have relied on the
1395                // previous behavior, we convert an openable file URI into an FD.
1396                // Note that unlike SL_DATALOCATOR_ANDROIDFD, this FD is owned by us
1397                // and so we close it as soon as we've passed it (via Binder dup) to mediaserver.
1398                const char *uri = (const char *)pAudioPlayer->mDataSource.mLocator.mURI.URI;
1399                if (!isDistantProtocol(uri)) {
1400                    // don't touch the original uri, we may need it later
1401                    const char *pathname = uri;
1402                    // skip over an optional leading file:// prefix
1403                    if (!strncasecmp(pathname, "file://", 7)) {
1404                        pathname += 7;
1405                    }
1406                    // attempt to open it as a file using the application's credentials
1407                    int fd = ::open(pathname, O_RDONLY);
1408                    if (fd >= 0) {
1409                        // if open is successful, then check to see if it's a regular file
1410                        struct stat statbuf;
1411                        if (!::fstat(fd, &statbuf) && S_ISREG(statbuf.st_mode)) {
1412                            // treat similarly to an FD data locator, but
1413                            // let setDataSource take responsibility for closing fd
1414                            pAudioPlayer->mAPlayer->setDataSource(fd, 0, statbuf.st_size, true);
1415                            break;
1416                        }
1417                        // we were able to open it, but it's not a file, so let mediaserver try
1418                        (void) ::close(fd);
1419                    }
1420                }
1421                // if either the URI didn't look like a file, or open failed, or not a file
1422                pAudioPlayer->mAPlayer->setDataSource(uri);
1423                } break;
1424            case SL_DATALOCATOR_ANDROIDFD: {
1425                int64_t offset = (int64_t)pAudioPlayer->mDataSource.mLocator.mFD.offset;
1426                pAudioPlayer->mAPlayer->setDataSource(
1427                        (int)pAudioPlayer->mDataSource.mLocator.mFD.fd,
1428                        offset == SL_DATALOCATOR_ANDROIDFD_USE_FILE_SIZE ?
1429                                (int64_t)PLAYER_FD_FIND_FILE_SIZE : offset,
1430                        (int64_t)pAudioPlayer->mDataSource.mLocator.mFD.length);
1431                }
1432                break;
1433            default:
1434                SL_LOGE(ERROR_PLAYERREALIZE_UNKNOWN_DATASOURCE_LOCATOR);
1435                break;
1436        }
1437
1438        }
1439        break;
1440    //-----------------------------------
1441    // StreamPlayer
1442    case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE: {
1443        AudioPlayback_Parameters ap_params;
1444        ap_params.sessionId = pAudioPlayer->mSessionId;
1445        ap_params.streamType = pAudioPlayer->mStreamType;
1446        android::StreamPlayer* splr = new android::StreamPlayer(&ap_params, false /*hasVideo*/,
1447                &pAudioPlayer->mAndroidBufferQueue, pAudioPlayer->mCallbackProtector);
1448        pAudioPlayer->mAPlayer = splr;
1449        splr->init(sfplayer_handlePrefetchEvent, (void*)pAudioPlayer);
1450        }
1451        break;
1452    //-----------------------------------
1453    // AudioToCbRenderer
1454    case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE: {
1455        AudioPlayback_Parameters app;
1456        app.sessionId = pAudioPlayer->mSessionId;
1457        app.streamType = pAudioPlayer->mStreamType;
1458
1459        android::AudioToCbRenderer* decoder = new android::AudioToCbRenderer(&app);
1460        pAudioPlayer->mAPlayer = decoder;
1461        // configures the callback for the sink buffer queue
1462        decoder->setDataPushListener(adecoder_writeToBufferQueue, pAudioPlayer);
1463        // configures the callback for the notifications coming from the SF code
1464        decoder->init(sfplayer_handlePrefetchEvent, (void*)pAudioPlayer);
1465
1466        switch (pAudioPlayer->mDataSource.mLocator.mLocatorType) {
1467        case SL_DATALOCATOR_URI:
1468            decoder->setDataSource(
1469                    (const char*)pAudioPlayer->mDataSource.mLocator.mURI.URI);
1470            break;
1471        case SL_DATALOCATOR_ANDROIDFD: {
1472            int64_t offset = (int64_t)pAudioPlayer->mDataSource.mLocator.mFD.offset;
1473            decoder->setDataSource(
1474                    (int)pAudioPlayer->mDataSource.mLocator.mFD.fd,
1475                    offset == SL_DATALOCATOR_ANDROIDFD_USE_FILE_SIZE ?
1476                            (int64_t)PLAYER_FD_FIND_FILE_SIZE : offset,
1477                            (int64_t)pAudioPlayer->mDataSource.mLocator.mFD.length);
1478            }
1479            break;
1480        default:
1481            SL_LOGE(ERROR_PLAYERREALIZE_UNKNOWN_DATASOURCE_LOCATOR);
1482            break;
1483        }
1484
1485        }
1486        break;
1487    //-----------------------------------
1488    // AacBqToPcmCbRenderer
1489    case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE: {
1490        AudioPlayback_Parameters app;
1491        app.sessionId = pAudioPlayer->mSessionId;
1492        app.streamType = pAudioPlayer->mStreamType;
1493        android::AacBqToPcmCbRenderer* bqtobq = new android::AacBqToPcmCbRenderer(&app);
1494        // configures the callback for the sink buffer queue
1495        bqtobq->setDataPushListener(adecoder_writeToBufferQueue, pAudioPlayer);
1496        pAudioPlayer->mAPlayer = bqtobq;
1497        // configures the callback for the notifications coming from the SF code,
1498        // but also implicitly configures the AndroidBufferQueue from which ADTS data is read
1499        pAudioPlayer->mAPlayer->init(sfplayer_handlePrefetchEvent, (void*)pAudioPlayer);
1500        }
1501        break;
1502    //-----------------------------------
1503    default:
1504        SL_LOGE(ERROR_PLAYERREALIZE_UNEXPECTED_OBJECT_TYPE_D, pAudioPlayer->mAndroidObjType);
1505        result = SL_RESULT_INTERNAL_ERROR;
1506        break;
1507    }
1508
1509
1510    // proceed with effect initialization
1511    // initialize EQ
1512    // FIXME use a table of effect descriptors when adding support for more effects
1513    if (memcmp(SL_IID_EQUALIZER, &pAudioPlayer->mEqualizer.mEqDescriptor.type,
1514            sizeof(effect_uuid_t)) == 0) {
1515        SL_LOGV("Need to initialize EQ for AudioPlayer=%p", pAudioPlayer);
1516        android_eq_init(pAudioPlayer->mSessionId, &pAudioPlayer->mEqualizer);
1517    }
1518    // initialize BassBoost
1519    if (memcmp(SL_IID_BASSBOOST, &pAudioPlayer->mBassBoost.mBassBoostDescriptor.type,
1520            sizeof(effect_uuid_t)) == 0) {
1521        SL_LOGV("Need to initialize BassBoost for AudioPlayer=%p", pAudioPlayer);
1522        android_bb_init(pAudioPlayer->mSessionId, &pAudioPlayer->mBassBoost);
1523    }
1524    // initialize Virtualizer
1525    if (memcmp(SL_IID_VIRTUALIZER, &pAudioPlayer->mVirtualizer.mVirtualizerDescriptor.type,
1526               sizeof(effect_uuid_t)) == 0) {
1527        SL_LOGV("Need to initialize Virtualizer for AudioPlayer=%p", pAudioPlayer);
1528        android_virt_init(pAudioPlayer->mSessionId, &pAudioPlayer->mVirtualizer);
1529    }
1530
1531    // initialize EffectSend
1532    // FIXME initialize EffectSend
1533
1534    return result;
1535}
1536
1537
1538//-----------------------------------------------------------------------------
1539/**
1540 * Called with a lock on AudioPlayer, and blocks until safe to destroy
1541 */
1542SLresult android_audioPlayer_preDestroy(CAudioPlayer *pAudioPlayer) {
1543    SL_LOGD("android_audioPlayer_preDestroy(%p)", pAudioPlayer);
1544    SLresult result = SL_RESULT_SUCCESS;
1545
1546  bool disableCallbacksBeforePreDestroy;
1547  switch (pAudioPlayer->mAndroidObjType) {
1548  // Not yet clear why this order is important, but it reduces detected deadlocks
1549  case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1550    disableCallbacksBeforePreDestroy = true;
1551    break;
1552  // Use the old behavior for all other use cases until proven
1553  // case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1554  default:
1555    disableCallbacksBeforePreDestroy = false;
1556    break;
1557  }
1558
1559  if (disableCallbacksBeforePreDestroy) {
1560    object_unlock_exclusive(&pAudioPlayer->mObject);
1561    if (pAudioPlayer->mCallbackProtector != 0) {
1562        pAudioPlayer->mCallbackProtector->requestCbExitAndWait();
1563    }
1564    object_lock_exclusive(&pAudioPlayer->mObject);
1565  }
1566
1567    if (pAudioPlayer->mAPlayer != 0) {
1568        pAudioPlayer->mAPlayer->preDestroy();
1569    }
1570    SL_LOGD("android_audioPlayer_preDestroy(%p) after mAPlayer->preDestroy()", pAudioPlayer);
1571
1572  if (!disableCallbacksBeforePreDestroy) {
1573    object_unlock_exclusive(&pAudioPlayer->mObject);
1574    if (pAudioPlayer->mCallbackProtector != 0) {
1575        pAudioPlayer->mCallbackProtector->requestCbExitAndWait();
1576    }
1577    object_lock_exclusive(&pAudioPlayer->mObject);
1578  }
1579
1580    return result;
1581}
1582
1583
1584//-----------------------------------------------------------------------------
1585SLresult android_audioPlayer_destroy(CAudioPlayer *pAudioPlayer) {
1586    SLresult result = SL_RESULT_SUCCESS;
1587    SL_LOGV("android_audioPlayer_destroy(%p)", pAudioPlayer);
1588    switch (pAudioPlayer->mAndroidObjType) {
1589
1590    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
1591        // We own the audio track for PCM buffer queue players
1592        if (pAudioPlayer->mAudioTrack != 0) {
1593            pAudioPlayer->mAudioTrack->stop();
1594            // Note that there may still be another reference in post-unlock phase of SetPlayState
1595            pAudioPlayer->mAudioTrack.clear();
1596        }
1597        break;
1598
1599    case AUDIOPLAYER_FROM_URIFD:     // intended fall-through
1600    case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:    // intended fall-through
1601    case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE: // intended fall-through
1602    case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1603        pAudioPlayer->mAPlayer.clear();
1604        break;
1605    //-----------------------------------
1606    default:
1607        SL_LOGE(ERROR_PLAYERDESTROY_UNEXPECTED_OBJECT_TYPE_D, pAudioPlayer->mAndroidObjType);
1608        result = SL_RESULT_INTERNAL_ERROR;
1609        break;
1610    }
1611
1612    pAudioPlayer->mCallbackProtector.clear();
1613
1614    // FIXME might not be needed
1615    pAudioPlayer->mAndroidObjType = INVALID_TYPE;
1616
1617    // explicit destructor
1618    pAudioPlayer->mAudioTrack.~sp();
1619    // note that SetPlayState(PLAYING) may still hold a reference
1620    pAudioPlayer->mCallbackProtector.~sp();
1621    pAudioPlayer->mAuxEffect.~sp();
1622    pAudioPlayer->mAPlayer.~sp();
1623
1624    return result;
1625}
1626
1627
1628//-----------------------------------------------------------------------------
1629SLresult android_audioPlayer_setPlaybackRateAndConstraints(CAudioPlayer *ap, SLpermille rate,
1630        SLuint32 constraints) {
1631    SLresult result = SL_RESULT_SUCCESS;
1632    switch(ap->mAndroidObjType) {
1633    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE: {
1634        // these asserts were already checked by the platform-independent layer
1635        assert((AUDIOTRACK_MIN_PLAYBACKRATE_PERMILLE <= rate) &&
1636                (rate <= AUDIOTRACK_MAX_PLAYBACKRATE_PERMILLE));
1637        assert(constraints & SL_RATEPROP_NOPITCHCORAUDIO);
1638        // get the content sample rate
1639        uint32_t contentRate = sles_to_android_sampleRate(ap->mSampleRateMilliHz);
1640        // apply the SL ES playback rate on the AudioTrack as a factor of its content sample rate
1641        if (ap->mAudioTrack != 0) {
1642            ap->mAudioTrack->setSampleRate(contentRate * (rate/1000.0f));
1643        }
1644        }
1645        break;
1646    case AUDIOPLAYER_FROM_URIFD:
1647        assert(rate == 1000);
1648        assert(constraints & SL_RATEPROP_NOPITCHCORAUDIO);
1649        // that was easy
1650        break;
1651
1652    default:
1653        SL_LOGE("Unexpected object type %d", ap->mAndroidObjType);
1654        result = SL_RESULT_FEATURE_UNSUPPORTED;
1655        break;
1656    }
1657    return result;
1658}
1659
1660
1661//-----------------------------------------------------------------------------
1662// precondition
1663//  called with no lock held
1664//  ap != NULL
1665//  pItemCount != NULL
1666SLresult android_audioPlayer_metadata_getItemCount(CAudioPlayer *ap, SLuint32 *pItemCount) {
1667    if (ap->mAPlayer == 0) {
1668        return SL_RESULT_PARAMETER_INVALID;
1669    }
1670    switch(ap->mAndroidObjType) {
1671      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1672      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1673        {
1674            android::AudioSfDecoder* decoder =
1675                    static_cast<android::AudioSfDecoder*>(ap->mAPlayer.get());
1676            *pItemCount = decoder->getPcmFormatKeyCount();
1677        }
1678        break;
1679      default:
1680        *pItemCount = 0;
1681        break;
1682    }
1683    return SL_RESULT_SUCCESS;
1684}
1685
1686
1687//-----------------------------------------------------------------------------
1688// precondition
1689//  called with no lock held
1690//  ap != NULL
1691//  pKeySize != NULL
1692SLresult android_audioPlayer_metadata_getKeySize(CAudioPlayer *ap,
1693        SLuint32 index, SLuint32 *pKeySize) {
1694    if (ap->mAPlayer == 0) {
1695        return SL_RESULT_PARAMETER_INVALID;
1696    }
1697    SLresult res = SL_RESULT_SUCCESS;
1698    switch(ap->mAndroidObjType) {
1699      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1700      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1701        {
1702            android::AudioSfDecoder* decoder =
1703                    static_cast<android::AudioSfDecoder*>(ap->mAPlayer.get());
1704            SLuint32 keyNameSize = 0;
1705            if (!decoder->getPcmFormatKeySize(index, &keyNameSize)) {
1706                res = SL_RESULT_PARAMETER_INVALID;
1707            } else {
1708                // *pKeySize is the size of the region used to store the key name AND
1709                //   the information about the key (size, lang, encoding)
1710                *pKeySize = keyNameSize + sizeof(SLMetadataInfo);
1711            }
1712        }
1713        break;
1714      default:
1715        *pKeySize = 0;
1716        res = SL_RESULT_PARAMETER_INVALID;
1717        break;
1718    }
1719    return res;
1720}
1721
1722
1723//-----------------------------------------------------------------------------
1724// precondition
1725//  called with no lock held
1726//  ap != NULL
1727//  pKey != NULL
1728SLresult android_audioPlayer_metadata_getKey(CAudioPlayer *ap,
1729        SLuint32 index, SLuint32 size, SLMetadataInfo *pKey) {
1730    if (ap->mAPlayer == 0) {
1731        return SL_RESULT_PARAMETER_INVALID;
1732    }
1733    SLresult res = SL_RESULT_SUCCESS;
1734    switch(ap->mAndroidObjType) {
1735      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1736      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1737        {
1738            android::AudioSfDecoder* decoder =
1739                    static_cast<android::AudioSfDecoder*>(ap->mAPlayer.get());
1740            if ((size < sizeof(SLMetadataInfo) ||
1741                    (!decoder->getPcmFormatKeyName(index, size - sizeof(SLMetadataInfo),
1742                            (char*)pKey->data)))) {
1743                res = SL_RESULT_PARAMETER_INVALID;
1744            } else {
1745                // successfully retrieved the key value, update the other fields
1746                pKey->encoding = SL_CHARACTERENCODING_UTF8;
1747                memcpy((char *) pKey->langCountry, "en", 3);
1748                pKey->size = strlen((char*)pKey->data) + 1;
1749            }
1750        }
1751        break;
1752      default:
1753        res = SL_RESULT_PARAMETER_INVALID;
1754        break;
1755    }
1756    return res;
1757}
1758
1759
1760//-----------------------------------------------------------------------------
1761// precondition
1762//  called with no lock held
1763//  ap != NULL
1764//  pValueSize != NULL
1765SLresult android_audioPlayer_metadata_getValueSize(CAudioPlayer *ap,
1766        SLuint32 index, SLuint32 *pValueSize) {
1767    if (ap->mAPlayer == 0) {
1768        return SL_RESULT_PARAMETER_INVALID;
1769    }
1770    SLresult res = SL_RESULT_SUCCESS;
1771    switch(ap->mAndroidObjType) {
1772      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1773      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1774        {
1775            android::AudioSfDecoder* decoder =
1776                    static_cast<android::AudioSfDecoder*>(ap->mAPlayer.get());
1777            SLuint32 valueSize = 0;
1778            if (!decoder->getPcmFormatValueSize(index, &valueSize)) {
1779                res = SL_RESULT_PARAMETER_INVALID;
1780            } else {
1781                // *pValueSize is the size of the region used to store the key value AND
1782                //   the information about the value (size, lang, encoding)
1783                *pValueSize = valueSize + sizeof(SLMetadataInfo);
1784            }
1785        }
1786        break;
1787      default:
1788          *pValueSize = 0;
1789          res = SL_RESULT_PARAMETER_INVALID;
1790          break;
1791    }
1792    return res;
1793}
1794
1795
1796//-----------------------------------------------------------------------------
1797// precondition
1798//  called with no lock held
1799//  ap != NULL
1800//  pValue != NULL
1801SLresult android_audioPlayer_metadata_getValue(CAudioPlayer *ap,
1802        SLuint32 index, SLuint32 size, SLMetadataInfo *pValue) {
1803    if (ap->mAPlayer == 0) {
1804        return SL_RESULT_PARAMETER_INVALID;
1805    }
1806    SLresult res = SL_RESULT_SUCCESS;
1807    switch(ap->mAndroidObjType) {
1808      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1809      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1810        {
1811            android::AudioSfDecoder* decoder =
1812                    static_cast<android::AudioSfDecoder*>(ap->mAPlayer.get());
1813            pValue->encoding = SL_CHARACTERENCODING_BINARY;
1814            memcpy((char *) pValue->langCountry, "en", 3); // applicable here?
1815            SLuint32 valueSize = 0;
1816            if ((size < sizeof(SLMetadataInfo)
1817                    || (!decoder->getPcmFormatValueSize(index, &valueSize))
1818                    || (!decoder->getPcmFormatKeyValue(index, size - sizeof(SLMetadataInfo),
1819                            (SLuint32*)pValue->data)))) {
1820                res = SL_RESULT_PARAMETER_INVALID;
1821            } else {
1822                pValue->size = valueSize;
1823            }
1824        }
1825        break;
1826      default:
1827        res = SL_RESULT_PARAMETER_INVALID;
1828        break;
1829    }
1830    return res;
1831}
1832
1833//-----------------------------------------------------------------------------
1834// preconditions
1835//  ap != NULL
1836//  mutex is locked
1837//  play state has changed
1838void android_audioPlayer_setPlayState(CAudioPlayer *ap) {
1839
1840    SLuint32 playState = ap->mPlay.mState;
1841    AndroidObjectState objState = ap->mAndroidObjState;
1842
1843    switch(ap->mAndroidObjType) {
1844    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
1845        switch (playState) {
1846        case SL_PLAYSTATE_STOPPED:
1847            SL_LOGV("setting AudioPlayer to SL_PLAYSTATE_STOPPED");
1848            if (ap->mAudioTrack != 0) {
1849                ap->mAudioTrack->stop();
1850            }
1851            break;
1852        case SL_PLAYSTATE_PAUSED:
1853            SL_LOGV("setting AudioPlayer to SL_PLAYSTATE_PAUSED");
1854            if (ap->mAudioTrack != 0) {
1855                ap->mAudioTrack->pause();
1856            }
1857            break;
1858        case SL_PLAYSTATE_PLAYING:
1859            SL_LOGV("setting AudioPlayer to SL_PLAYSTATE_PLAYING");
1860            if (ap->mAudioTrack != 0) {
1861                // instead of ap->mAudioTrack->start();
1862                ap->mDeferredStart = true;
1863            }
1864            break;
1865        default:
1866            // checked by caller, should not happen
1867            break;
1868        }
1869        break;
1870
1871    case AUDIOPLAYER_FROM_URIFD:      // intended fall-through
1872    case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:     // intended fall-through
1873    case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:  // intended fall-through
1874    case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1875        // FIXME report and use the return code to the lock mechanism, which is where play state
1876        //   changes are updated (see object_unlock_exclusive_attributes())
1877        aplayer_setPlayState(ap->mAPlayer, playState, &(ap->mAndroidObjState));
1878        break;
1879    default:
1880        SL_LOGE(ERROR_PLAYERSETPLAYSTATE_UNEXPECTED_OBJECT_TYPE_D, ap->mAndroidObjType);
1881        break;
1882    }
1883}
1884
1885
1886//-----------------------------------------------------------------------------
1887// call when either player event flags, marker position, or position update period changes
1888void android_audioPlayer_usePlayEventMask(CAudioPlayer *ap) {
1889    IPlay *pPlayItf = &ap->mPlay;
1890    SLuint32 eventFlags = pPlayItf->mEventFlags;
1891    /*switch(ap->mAndroidObjType) {
1892    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:*/
1893
1894    if (ap->mAPlayer != 0) {
1895        assert(ap->mAudioTrack == 0);
1896        ap->mAPlayer->setPlayEvents((int32_t) eventFlags, (int32_t) pPlayItf->mMarkerPosition,
1897                (int32_t) pPlayItf->mPositionUpdatePeriod);
1898        return;
1899    }
1900
1901    if (ap->mAudioTrack == 0) {
1902        return;
1903    }
1904
1905    if (eventFlags & SL_PLAYEVENT_HEADATMARKER) {
1906        ap->mAudioTrack->setMarkerPosition((uint32_t)((((int64_t)pPlayItf->mMarkerPosition
1907                * sles_to_android_sampleRate(ap->mSampleRateMilliHz)))/1000));
1908    } else {
1909        // clear marker
1910        ap->mAudioTrack->setMarkerPosition(0);
1911    }
1912
1913    if (eventFlags & SL_PLAYEVENT_HEADATNEWPOS) {
1914         ap->mAudioTrack->setPositionUpdatePeriod(
1915                (uint32_t)((((int64_t)pPlayItf->mPositionUpdatePeriod
1916                * sles_to_android_sampleRate(ap->mSampleRateMilliHz)))/1000));
1917    } else {
1918        // clear periodic update
1919        ap->mAudioTrack->setPositionUpdatePeriod(0);
1920    }
1921
1922    if (eventFlags & SL_PLAYEVENT_HEADATEND) {
1923        // nothing to do for SL_PLAYEVENT_HEADATEND, callback event will be checked against mask
1924    }
1925
1926    if (eventFlags & SL_PLAYEVENT_HEADMOVING) {
1927        // FIXME support SL_PLAYEVENT_HEADMOVING
1928        SL_LOGD("[ FIXME: IPlay_SetCallbackEventsMask(SL_PLAYEVENT_HEADMOVING) on an "
1929            "SL_OBJECTID_AUDIOPLAYER to be implemented ]");
1930    }
1931    if (eventFlags & SL_PLAYEVENT_HEADSTALLED) {
1932        // nothing to do for SL_PLAYEVENT_HEADSTALLED, callback event will be checked against mask
1933    }
1934
1935}
1936
1937
1938//-----------------------------------------------------------------------------
1939SLresult android_audioPlayer_getDuration(IPlay *pPlayItf, SLmillisecond *pDurMsec) {
1940    CAudioPlayer *ap = (CAudioPlayer *)pPlayItf->mThis;
1941    switch(ap->mAndroidObjType) {
1942
1943      case AUDIOPLAYER_FROM_URIFD:  // intended fall-through
1944      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE: {
1945        int32_t durationMsec = ANDROID_UNKNOWN_TIME;
1946        if (ap->mAPlayer != 0) {
1947            ap->mAPlayer->getDurationMsec(&durationMsec);
1948        }
1949        *pDurMsec = durationMsec == ANDROID_UNKNOWN_TIME ? SL_TIME_UNKNOWN : durationMsec;
1950        break;
1951      }
1952
1953      case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE: // intended fall-through
1954      case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
1955      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1956      default: {
1957        *pDurMsec = SL_TIME_UNKNOWN;
1958      }
1959    }
1960    return SL_RESULT_SUCCESS;
1961}
1962
1963
1964//-----------------------------------------------------------------------------
1965void android_audioPlayer_getPosition(IPlay *pPlayItf, SLmillisecond *pPosMsec) {
1966    CAudioPlayer *ap = (CAudioPlayer *)pPlayItf->mThis;
1967    switch(ap->mAndroidObjType) {
1968
1969      case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
1970        if ((ap->mSampleRateMilliHz == UNKNOWN_SAMPLERATE) || (ap->mAudioTrack == 0)) {
1971            *pPosMsec = 0;
1972        } else {
1973            uint32_t positionInFrames;
1974            ap->mAudioTrack->getPosition(&positionInFrames);
1975            *pPosMsec = ((int64_t)positionInFrames * 1000) /
1976                    sles_to_android_sampleRate(ap->mSampleRateMilliHz);
1977        }
1978        break;
1979
1980      case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:    // intended fall-through
1981      case AUDIOPLAYER_FROM_URIFD:
1982      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1983      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE: {
1984        int32_t posMsec = ANDROID_UNKNOWN_TIME;
1985        if (ap->mAPlayer != 0) {
1986            ap->mAPlayer->getPositionMsec(&posMsec);
1987        }
1988        *pPosMsec = posMsec == ANDROID_UNKNOWN_TIME ? 0 : posMsec;
1989        break;
1990      }
1991
1992      default:
1993        *pPosMsec = 0;
1994    }
1995}
1996
1997
1998//-----------------------------------------------------------------------------
1999SLresult android_audioPlayer_seek(CAudioPlayer *ap, SLmillisecond posMsec) {
2000    SLresult result = SL_RESULT_SUCCESS;
2001
2002    switch(ap->mAndroidObjType) {
2003
2004      case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:      // intended fall-through
2005      case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:
2006      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
2007        result = SL_RESULT_FEATURE_UNSUPPORTED;
2008        break;
2009
2010      case AUDIOPLAYER_FROM_URIFD:                   // intended fall-through
2011      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
2012        if (ap->mAPlayer != 0) {
2013            ap->mAPlayer->seek(posMsec);
2014        }
2015        break;
2016
2017      default:
2018        break;
2019    }
2020    return result;
2021}
2022
2023
2024//-----------------------------------------------------------------------------
2025SLresult android_audioPlayer_loop(CAudioPlayer *ap, SLboolean loopEnable) {
2026    SLresult result = SL_RESULT_SUCCESS;
2027
2028    switch (ap->mAndroidObjType) {
2029    case AUDIOPLAYER_FROM_URIFD:
2030    // case AUDIOPLAY_FROM_URIFD_TO_PCM_BUFFERQUEUE:
2031    //      would actually work, but what's the point?
2032      if (ap->mAPlayer != 0) {
2033        ap->mAPlayer->loop((bool)loopEnable);
2034      }
2035      break;
2036    default:
2037      result = SL_RESULT_FEATURE_UNSUPPORTED;
2038      break;
2039    }
2040    return result;
2041}
2042
2043
2044//-----------------------------------------------------------------------------
2045SLresult android_audioPlayer_setBufferingUpdateThresholdPerMille(CAudioPlayer *ap,
2046        SLpermille threshold) {
2047    SLresult result = SL_RESULT_SUCCESS;
2048
2049    switch (ap->mAndroidObjType) {
2050      case AUDIOPLAYER_FROM_URIFD:
2051        if (ap->mAPlayer != 0) {
2052            ap->mAPlayer->setBufferingUpdateThreshold(threshold / 10);
2053        }
2054        break;
2055
2056      default: {}
2057    }
2058
2059    return result;
2060}
2061
2062
2063//-----------------------------------------------------------------------------
2064void android_audioPlayer_bufferQueue_onRefilled_l(CAudioPlayer *ap) {
2065    // the AudioTrack associated with the AudioPlayer receiving audio from a PCM buffer
2066    // queue was stopped when the queue become empty, we restart as soon as a new buffer
2067    // has been enqueued since we're in playing state
2068    if (ap->mAudioTrack != 0) {
2069        // instead of ap->mAudioTrack->start();
2070        ap->mDeferredStart = true;
2071    }
2072
2073    // when the queue became empty, an underflow on the prefetch status itf was sent. Now the queue
2074    // has received new data, signal it has sufficient data
2075    if (IsInterfaceInitialized(&(ap->mObject), MPH_PREFETCHSTATUS)) {
2076        // we wouldn't have been called unless we were previously in the underflow state
2077        assert(SL_PREFETCHSTATUS_UNDERFLOW == ap->mPrefetchStatus.mStatus);
2078        assert(0 == ap->mPrefetchStatus.mLevel);
2079        ap->mPrefetchStatus.mStatus = SL_PREFETCHSTATUS_SUFFICIENTDATA;
2080        ap->mPrefetchStatus.mLevel = 1000;
2081        // callback or no callback?
2082        SLuint32 prefetchEvents = ap->mPrefetchStatus.mCallbackEventsMask &
2083                (SL_PREFETCHEVENT_STATUSCHANGE | SL_PREFETCHEVENT_FILLLEVELCHANGE);
2084        if (SL_PREFETCHEVENT_NONE != prefetchEvents) {
2085            ap->mPrefetchStatus.mDeferredPrefetchCallback = ap->mPrefetchStatus.mCallback;
2086            ap->mPrefetchStatus.mDeferredPrefetchContext  = ap->mPrefetchStatus.mContext;
2087            ap->mPrefetchStatus.mDeferredPrefetchEvents   = prefetchEvents;
2088        }
2089    }
2090}
2091
2092
2093//-----------------------------------------------------------------------------
2094/*
2095 * BufferQueue::Clear
2096 */
2097SLresult android_audioPlayer_bufferQueue_onClear(CAudioPlayer *ap) {
2098    SLresult result = SL_RESULT_SUCCESS;
2099
2100    switch (ap->mAndroidObjType) {
2101    //-----------------------------------
2102    // AudioTrack
2103    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
2104        if (ap->mAudioTrack != 0) {
2105            ap->mAudioTrack->flush();
2106        }
2107        break;
2108    default:
2109        result = SL_RESULT_INTERNAL_ERROR;
2110        break;
2111    }
2112
2113    return result;
2114}
2115
2116
2117//-----------------------------------------------------------------------------
2118SLresult android_audioPlayer_androidBufferQueue_registerCallback_l(CAudioPlayer *ap) {
2119    SLresult result = SL_RESULT_SUCCESS;
2120    assert(ap->mAPlayer != 0);
2121    // FIXME investigate why these two cases are not handled symmetrically any more
2122    switch (ap->mAndroidObjType) {
2123      case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE: {
2124        } break;
2125      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE: {
2126          android::AacBqToPcmCbRenderer* dec =
2127                  static_cast<android::AacBqToPcmCbRenderer*>(ap->mAPlayer.get());
2128          dec->registerSourceQueueCallback((const void*)ap /*user*/,
2129                  ap->mAndroidBufferQueue.mContext /*context*/,
2130                  (const void*)&(ap->mAndroidBufferQueue.mItf) /*caller*/);
2131        } break;
2132      default:
2133        SL_LOGE("Error registering AndroidBufferQueue callback: unexpected object type %d",
2134                ap->mAndroidObjType);
2135        result = SL_RESULT_INTERNAL_ERROR;
2136        break;
2137    }
2138    return result;
2139}
2140
2141//-----------------------------------------------------------------------------
2142void android_audioPlayer_androidBufferQueue_clear_l(CAudioPlayer *ap) {
2143    switch (ap->mAndroidObjType) {
2144    case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:
2145      if (ap->mAPlayer != 0) {
2146        android::StreamPlayer* splr = static_cast<android::StreamPlayer*>(ap->mAPlayer.get());
2147        splr->appClear_l();
2148      } break;
2149    case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
2150      // nothing to do here, fall through
2151    default:
2152      break;
2153    }
2154}
2155
2156void android_audioPlayer_androidBufferQueue_onRefilled_l(CAudioPlayer *ap) {
2157    switch (ap->mAndroidObjType) {
2158    case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:
2159      if (ap->mAPlayer != 0) {
2160        android::StreamPlayer* splr = static_cast<android::StreamPlayer*>(ap->mAPlayer.get());
2161        splr->queueRefilled();
2162      } break;
2163    case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
2164      // FIXME this may require waking up the decoder if it is currently starved and isn't polling
2165    default:
2166      break;
2167    }
2168}
2169