AudioPlayer_to_android.cpp revision 513222822545c3e954176476b263df52a47f43a4 
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_LOGV("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            ap->mPrefetchStatus.mLevel = 0;
851            ap->mPrefetchStatus.mStatus = SL_PREFETCHSTATUS_UNDERFLOW;
852            if (!(~ap->mPrefetchStatus.mCallbackEventsMask &
853                    (SL_PREFETCHEVENT_FILLLEVELCHANGE | SL_PREFETCHEVENT_STATUSCHANGE))) {
854                callback = ap->mPrefetchStatus.mCallback;
855                callbackPContext = ap->mPrefetchStatus.mContext;
856            }
857        }
858        object_unlock_exclusive(&ap->mObject);
859
860        // FIXME there's interesting information in data1, but no API to convey it to client
861        SL_LOGE("Error after prepare: %d", data1);
862
863        // callback with no lock held
864        if (NULL != callback) {
865            (*callback)(&ap->mPrefetchStatus.mItf, callbackPContext,
866                    SL_PREFETCHEVENT_FILLLEVELCHANGE | SL_PREFETCHEVENT_STATUSCHANGE);
867        }
868
869      }
870      break;
871
872
873    default:
874        break;
875    }
876
877    ap->mCallbackProtector->exitCb();
878}
879
880
881//-----------------------------------------------------------------------------
882SLresult android_audioPlayer_checkSourceSink(CAudioPlayer *pAudioPlayer)
883{
884    // verify that the locator types for the source / sink combination is supported
885    pAudioPlayer->mAndroidObjType = audioPlayer_getAndroidObjectTypeForSourceSink(pAudioPlayer);
886    if (INVALID_TYPE == pAudioPlayer->mAndroidObjType) {
887        return SL_RESULT_PARAMETER_INVALID;
888    }
889
890    const SLDataSource *pAudioSrc = &pAudioPlayer->mDataSource.u.mSource;
891    const SLDataSink *pAudioSnk = &pAudioPlayer->mDataSink.u.mSink;
892
893    // format check:
894    const SLuint32 sourceLocatorType = *(SLuint32 *)pAudioSrc->pLocator;
895    const SLuint32 sinkLocatorType = *(SLuint32 *)pAudioSnk->pLocator;
896    const SLuint32 sourceFormatType = *(SLuint32 *)pAudioSrc->pFormat;
897    const SLuint32 sinkFormatType = *(SLuint32 *)pAudioSnk->pFormat;
898
899    switch (sourceLocatorType) {
900    //------------------
901    //   Buffer Queues
902    case SL_DATALOCATOR_BUFFERQUEUE:
903    case SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE:
904        {
905        SLDataLocator_BufferQueue *dl_bq =  (SLDataLocator_BufferQueue *) pAudioSrc->pLocator;
906
907        // Buffer format
908        switch (sourceFormatType) {
909        //     currently only PCM buffer queues are supported,
910        case SL_DATAFORMAT_PCM: {
911            SLDataFormat_PCM *df_pcm = (SLDataFormat_PCM *) pAudioSrc->pFormat;
912            switch (df_pcm->numChannels) {
913            case 1:
914            case 2:
915                break;
916            default:
917                // this should have already been rejected by checkDataFormat
918                SL_LOGE("Cannot create audio player: unsupported " \
919                    "PCM data source with %u channels", (unsigned) df_pcm->numChannels);
920                return SL_RESULT_CONTENT_UNSUPPORTED;
921            }
922            switch (df_pcm->samplesPerSec) {
923            case SL_SAMPLINGRATE_8:
924            case SL_SAMPLINGRATE_11_025:
925            case SL_SAMPLINGRATE_12:
926            case SL_SAMPLINGRATE_16:
927            case SL_SAMPLINGRATE_22_05:
928            case SL_SAMPLINGRATE_24:
929            case SL_SAMPLINGRATE_32:
930            case SL_SAMPLINGRATE_44_1:
931            case SL_SAMPLINGRATE_48:
932                break;
933            case SL_SAMPLINGRATE_64:
934            case SL_SAMPLINGRATE_88_2:
935            case SL_SAMPLINGRATE_96:
936            case SL_SAMPLINGRATE_192:
937            default:
938                SL_LOGE("Cannot create audio player: unsupported sample rate %u milliHz",
939                    (unsigned) df_pcm->samplesPerSec);
940                return SL_RESULT_CONTENT_UNSUPPORTED;
941            }
942            switch (df_pcm->bitsPerSample) {
943            case SL_PCMSAMPLEFORMAT_FIXED_8:
944            case SL_PCMSAMPLEFORMAT_FIXED_16:
945                break;
946                // others
947            default:
948                // this should have already been rejected by checkDataFormat
949                SL_LOGE("Cannot create audio player: unsupported sample bit depth %u",
950                        (SLuint32)df_pcm->bitsPerSample);
951                return SL_RESULT_CONTENT_UNSUPPORTED;
952            }
953            switch (df_pcm->containerSize) {
954            case 8:
955            case 16:
956                break;
957                // others
958            default:
959                SL_LOGE("Cannot create audio player: unsupported container size %u",
960                    (unsigned) df_pcm->containerSize);
961                return SL_RESULT_CONTENT_UNSUPPORTED;
962            }
963            // df_pcm->channelMask: the earlier platform-independent check and the
964            //     upcoming check by sles_to_android_channelMaskOut are sufficient
965            switch (df_pcm->endianness) {
966            case SL_BYTEORDER_LITTLEENDIAN:
967                break;
968            case SL_BYTEORDER_BIGENDIAN:
969                SL_LOGE("Cannot create audio player: unsupported big-endian byte order");
970                return SL_RESULT_CONTENT_UNSUPPORTED;
971                // native is proposed but not yet in spec
972            default:
973                SL_LOGE("Cannot create audio player: unsupported byte order %u",
974                    (unsigned) df_pcm->endianness);
975                return SL_RESULT_CONTENT_UNSUPPORTED;
976            }
977            } //case SL_DATAFORMAT_PCM
978            break;
979        case SL_DATAFORMAT_MIME:
980        case XA_DATAFORMAT_RAWIMAGE:
981            SL_LOGE("Cannot create audio player with buffer queue data source "
982                "without SL_DATAFORMAT_PCM format");
983            return SL_RESULT_CONTENT_UNSUPPORTED;
984        default:
985            // invalid data format is detected earlier
986            assert(false);
987            return SL_RESULT_INTERNAL_ERROR;
988        } // switch (sourceFormatType)
989        } // case SL_DATALOCATOR_BUFFERQUEUE or SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE
990        break;
991    //------------------
992    //   URI
993    case SL_DATALOCATOR_URI:
994        {
995        SLDataLocator_URI *dl_uri =  (SLDataLocator_URI *) pAudioSrc->pLocator;
996        if (NULL == dl_uri->URI) {
997            return SL_RESULT_PARAMETER_INVALID;
998        }
999        // URI format
1000        switch (sourceFormatType) {
1001        case SL_DATAFORMAT_MIME:
1002            break;
1003        case SL_DATAFORMAT_PCM:
1004        case XA_DATAFORMAT_RAWIMAGE:
1005            SL_LOGE("Cannot create audio player with SL_DATALOCATOR_URI data source without "
1006                "SL_DATAFORMAT_MIME format");
1007            return SL_RESULT_CONTENT_UNSUPPORTED;
1008        } // switch (sourceFormatType)
1009        // decoding format check
1010        if ((sinkLocatorType != SL_DATALOCATOR_OUTPUTMIX) &&
1011                !audioPlayer_isSupportedNonOutputMixSink(pAudioSnk)) {
1012            return SL_RESULT_CONTENT_UNSUPPORTED;
1013        }
1014        } // case SL_DATALOCATOR_URI
1015        break;
1016    //------------------
1017    //   File Descriptor
1018    case SL_DATALOCATOR_ANDROIDFD:
1019        {
1020        // fd is already non null
1021        switch (sourceFormatType) {
1022        case SL_DATAFORMAT_MIME:
1023            break;
1024        case SL_DATAFORMAT_PCM:
1025            // FIXME implement
1026            SL_LOGD("[ FIXME implement PCM FD data sources ]");
1027            break;
1028        case XA_DATAFORMAT_RAWIMAGE:
1029            SL_LOGE("Cannot create audio player with SL_DATALOCATOR_ANDROIDFD data source "
1030                "without SL_DATAFORMAT_MIME or SL_DATAFORMAT_PCM format");
1031            return SL_RESULT_CONTENT_UNSUPPORTED;
1032        default:
1033            // invalid data format is detected earlier
1034            assert(false);
1035            return SL_RESULT_INTERNAL_ERROR;
1036        } // switch (sourceFormatType)
1037        if ((sinkLocatorType != SL_DATALOCATOR_OUTPUTMIX) &&
1038                !audioPlayer_isSupportedNonOutputMixSink(pAudioSnk)) {
1039            return SL_RESULT_CONTENT_UNSUPPORTED;
1040        }
1041        } // case SL_DATALOCATOR_ANDROIDFD
1042        break;
1043    //------------------
1044    //   Stream
1045    case SL_DATALOCATOR_ANDROIDBUFFERQUEUE:
1046    {
1047        switch (sourceFormatType) {
1048        case SL_DATAFORMAT_MIME:
1049        {
1050            SLDataFormat_MIME *df_mime = (SLDataFormat_MIME *) pAudioSrc->pFormat;
1051            if (NULL == df_mime) {
1052                SL_LOGE("MIME type null invalid");
1053                return SL_RESULT_CONTENT_UNSUPPORTED;
1054            }
1055            SL_LOGD("source MIME is %s", (char*)df_mime->mimeType);
1056            switch(df_mime->containerType) {
1057            case SL_CONTAINERTYPE_MPEG_TS:
1058                if (strcasecmp((char*)df_mime->mimeType, (const char *)XA_ANDROID_MIME_MP2TS)) {
1059                    SL_LOGE("Invalid MIME (%s) for container SL_CONTAINERTYPE_MPEG_TS, expects %s",
1060                            (char*)df_mime->mimeType, XA_ANDROID_MIME_MP2TS);
1061                    return SL_RESULT_CONTENT_UNSUPPORTED;
1062                }
1063                break;
1064            case SL_CONTAINERTYPE_RAW:
1065            case SL_CONTAINERTYPE_AAC:
1066                if (strcasecmp((char*)df_mime->mimeType, (const char *)SL_ANDROID_MIME_AACADTS) &&
1067                        strcasecmp((char*)df_mime->mimeType,
1068                                ANDROID_MIME_AACADTS_ANDROID_FRAMEWORK)) {
1069                    SL_LOGE("Invalid MIME (%s) for container type %d, expects %s",
1070                            (char*)df_mime->mimeType, df_mime->containerType,
1071                            SL_ANDROID_MIME_AACADTS);
1072                    return SL_RESULT_CONTENT_UNSUPPORTED;
1073                }
1074                break;
1075            default:
1076                SL_LOGE("Cannot create player with SL_DATALOCATOR_ANDROIDBUFFERQUEUE data source "
1077                                        "that is not fed MPEG-2 TS data or AAC ADTS data");
1078                return SL_RESULT_CONTENT_UNSUPPORTED;
1079            }
1080        }
1081        break;
1082        default:
1083            SL_LOGE("Cannot create player with SL_DATALOCATOR_ANDROIDBUFFERQUEUE data source "
1084                    "without SL_DATAFORMAT_MIME format");
1085            return SL_RESULT_CONTENT_UNSUPPORTED;
1086        }
1087    }
1088    break; // case SL_DATALOCATOR_ANDROIDBUFFERQUEUE
1089    //------------------
1090    //   Address
1091    case SL_DATALOCATOR_ADDRESS:
1092    case SL_DATALOCATOR_IODEVICE:
1093    case SL_DATALOCATOR_OUTPUTMIX:
1094    case XA_DATALOCATOR_NATIVEDISPLAY:
1095    case SL_DATALOCATOR_MIDIBUFFERQUEUE:
1096        SL_LOGE("Cannot create audio player with data locator type 0x%x",
1097                (unsigned) sourceLocatorType);
1098        return SL_RESULT_CONTENT_UNSUPPORTED;
1099    default:
1100        SL_LOGE("Cannot create audio player with invalid data locator type 0x%x",
1101                (unsigned) sourceLocatorType);
1102        return SL_RESULT_PARAMETER_INVALID;
1103    }// switch (locatorType)
1104
1105    return SL_RESULT_SUCCESS;
1106}
1107
1108
1109//-----------------------------------------------------------------------------
1110// Callback associated with an AudioTrack of an SL ES AudioPlayer that gets its data
1111// from a buffer queue. This will not be called once the AudioTrack has been destroyed.
1112static void audioTrack_callBack_pullFromBuffQueue(int event, void* user, void *info) {
1113    CAudioPlayer *ap = (CAudioPlayer *)user;
1114
1115    if (!android::CallbackProtector::enterCbIfOk(ap->mCallbackProtector)) {
1116        // it is not safe to enter the callback (the track is about to go away)
1117        return;
1118    }
1119
1120    void * callbackPContext = NULL;
1121    switch(event) {
1122
1123    case android::AudioTrack::EVENT_MORE_DATA: {
1124        //SL_LOGV("received event EVENT_MORE_DATA from AudioTrack TID=%d", gettid());
1125        slBufferQueueCallback callback = NULL;
1126        slPrefetchCallback prefetchCallback = NULL;
1127        void *prefetchContext = NULL;
1128        SLuint32 prefetchEvents = SL_PREFETCHEVENT_NONE;
1129        android::AudioTrack::Buffer* pBuff = (android::AudioTrack::Buffer*)info;
1130
1131        // retrieve data from the buffer queue
1132        interface_lock_exclusive(&ap->mBufferQueue);
1133
1134        if (ap->mBufferQueue.mState.count != 0) {
1135            //SL_LOGV("nbBuffers in queue = %u",ap->mBufferQueue.mState.count);
1136            assert(ap->mBufferQueue.mFront != ap->mBufferQueue.mRear);
1137
1138            BufferHeader *oldFront = ap->mBufferQueue.mFront;
1139            BufferHeader *newFront = &oldFront[1];
1140
1141            // declared as void * because this code supports both 8-bit and 16-bit PCM data
1142            void *pSrc = (char *)oldFront->mBuffer + ap->mBufferQueue.mSizeConsumed;
1143            if (ap->mBufferQueue.mSizeConsumed + pBuff->size < oldFront->mSize) {
1144                // can't consume the whole or rest of the buffer in one shot
1145                ap->mBufferQueue.mSizeConsumed += pBuff->size;
1146                // leave pBuff->size untouched
1147                // consume data
1148                // FIXME can we avoid holding the lock during the copy?
1149                memcpy (pBuff->raw, pSrc, pBuff->size);
1150            } else {
1151                // finish consuming the buffer or consume the buffer in one shot
1152                pBuff->size = oldFront->mSize - ap->mBufferQueue.mSizeConsumed;
1153                ap->mBufferQueue.mSizeConsumed = 0;
1154
1155                if (newFront ==
1156                        &ap->mBufferQueue.mArray
1157                            [ap->mBufferQueue.mNumBuffers + 1])
1158                {
1159                    newFront = ap->mBufferQueue.mArray;
1160                }
1161                ap->mBufferQueue.mFront = newFront;
1162
1163                ap->mBufferQueue.mState.count--;
1164                ap->mBufferQueue.mState.playIndex++;
1165
1166                // consume data
1167                // FIXME can we avoid holding the lock during the copy?
1168                memcpy (pBuff->raw, pSrc, pBuff->size);
1169
1170                // data has been consumed, and the buffer queue state has been updated
1171                // we will notify the client if applicable
1172                callback = ap->mBufferQueue.mCallback;
1173                // save callback data
1174                callbackPContext = ap->mBufferQueue.mContext;
1175            }
1176        } else { // empty queue
1177            // signal no data available
1178            pBuff->size = 0;
1179
1180            // signal we're at the end of the content, but don't pause (see note in function)
1181            audioPlayer_dispatch_headAtEnd_lockPlay(ap, false /*set state to paused?*/, false);
1182
1183            // signal underflow to prefetch status itf
1184            if (IsInterfaceInitialized(&(ap->mObject), MPH_PREFETCHSTATUS)) {
1185                ap->mPrefetchStatus.mStatus = SL_PREFETCHSTATUS_UNDERFLOW;
1186                ap->mPrefetchStatus.mLevel = 0;
1187                // callback or no callback?
1188                prefetchEvents = ap->mPrefetchStatus.mCallbackEventsMask &
1189                        (SL_PREFETCHEVENT_STATUSCHANGE | SL_PREFETCHEVENT_FILLLEVELCHANGE);
1190                if (SL_PREFETCHEVENT_NONE != prefetchEvents) {
1191                    prefetchCallback = ap->mPrefetchStatus.mCallback;
1192                    prefetchContext  = ap->mPrefetchStatus.mContext;
1193                }
1194            }
1195
1196            // stop the track so it restarts playing faster when new data is enqueued
1197            ap->mAudioTrack->stop();
1198        }
1199        interface_unlock_exclusive(&ap->mBufferQueue);
1200
1201        // notify client
1202        if (NULL != prefetchCallback) {
1203            assert(SL_PREFETCHEVENT_NONE != prefetchEvents);
1204            // spec requires separate callbacks for each event
1205            if (prefetchEvents & SL_PREFETCHEVENT_STATUSCHANGE) {
1206                (*prefetchCallback)(&ap->mPrefetchStatus.mItf, prefetchContext,
1207                        SL_PREFETCHEVENT_STATUSCHANGE);
1208            }
1209            if (prefetchEvents & SL_PREFETCHEVENT_FILLLEVELCHANGE) {
1210                (*prefetchCallback)(&ap->mPrefetchStatus.mItf, prefetchContext,
1211                        SL_PREFETCHEVENT_FILLLEVELCHANGE);
1212            }
1213        }
1214        if (NULL != callback) {
1215            (*callback)(&ap->mBufferQueue.mItf, callbackPContext);
1216        }
1217    }
1218    break;
1219
1220    case android::AudioTrack::EVENT_MARKER:
1221        //SL_LOGI("received event EVENT_MARKER from AudioTrack");
1222        audioTrack_handleMarker_lockPlay(ap);
1223        break;
1224
1225    case android::AudioTrack::EVENT_NEW_POS:
1226        //SL_LOGI("received event EVENT_NEW_POS from AudioTrack");
1227        audioTrack_handleNewPos_lockPlay(ap);
1228        break;
1229
1230    case android::AudioTrack::EVENT_UNDERRUN:
1231        //SL_LOGI("received event EVENT_UNDERRUN from AudioTrack");
1232        audioTrack_handleUnderrun_lockPlay(ap);
1233        break;
1234
1235    default:
1236        // FIXME where does the notification of SL_PLAYEVENT_HEADMOVING fit?
1237        SL_LOGE("Encountered unknown AudioTrack event %d for CAudioPlayer %p", event,
1238                (CAudioPlayer *)user);
1239        break;
1240    }
1241
1242    ap->mCallbackProtector->exitCb();
1243}
1244
1245
1246//-----------------------------------------------------------------------------
1247SLresult android_audioPlayer_create(CAudioPlayer *pAudioPlayer) {
1248
1249    SLresult result = SL_RESULT_SUCCESS;
1250    // pAudioPlayer->mAndroidObjType has been set in audioPlayer_getAndroidObjectTypeForSourceSink()
1251    if (INVALID_TYPE == pAudioPlayer->mAndroidObjType) {
1252        audioPlayer_setInvalid(pAudioPlayer);
1253        result = SL_RESULT_PARAMETER_INVALID;
1254    } else {
1255
1256        // These initializations are in the same order as the field declarations in classes.h
1257
1258        // FIXME Consolidate initializations (many of these already in IEngine_CreateAudioPlayer)
1259        // mAndroidObjType: see above comment
1260        pAudioPlayer->mAndroidObjState = ANDROID_UNINITIALIZED;
1261        pAudioPlayer->mSessionId = android::AudioSystem::newAudioSessionId();
1262        pAudioPlayer->mStreamType = ANDROID_DEFAULT_OUTPUT_STREAM_TYPE;
1263
1264        // mAudioTrack
1265        pAudioPlayer->mCallbackProtector = new android::CallbackProtector();
1266        // mAPLayer
1267        // mAuxEffect
1268
1269        pAudioPlayer->mAuxSendLevel = 0;
1270        pAudioPlayer->mAmplFromDirectLevel = 1.0f; // matches initial mDirectLevel value
1271        pAudioPlayer->mDeferredStart = false;
1272
1273        // Already initialized in IEngine_CreateAudioPlayer, to be consolidated
1274        pAudioPlayer->mDirectLevel = 0; // no attenuation
1275
1276        // This section re-initializes interface-specific fields that
1277        // can be set or used regardless of whether the interface is
1278        // exposed on the AudioPlayer or not
1279
1280        // Only AudioTrack supports a non-trivial playback rate
1281        switch (pAudioPlayer->mAndroidObjType) {
1282        case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
1283            pAudioPlayer->mPlaybackRate.mMinRate = AUDIOTRACK_MIN_PLAYBACKRATE_PERMILLE;
1284            pAudioPlayer->mPlaybackRate.mMaxRate = AUDIOTRACK_MAX_PLAYBACKRATE_PERMILLE;
1285            break;
1286        default:
1287            // use the default range
1288            break;
1289        }
1290
1291    }
1292
1293    return result;
1294}
1295
1296
1297//-----------------------------------------------------------------------------
1298SLresult android_audioPlayer_setConfig(CAudioPlayer *ap, const SLchar *configKey,
1299        const void *pConfigValue, SLuint32 valueSize) {
1300
1301    SLresult result;
1302
1303    assert(NULL != ap && NULL != configKey && NULL != pConfigValue);
1304    if(strcmp((const char*)configKey, (const char*)SL_ANDROID_KEY_STREAM_TYPE) == 0) {
1305
1306        // stream type
1307        if (KEY_STREAM_TYPE_PARAMSIZE > valueSize) {
1308            SL_LOGE(ERROR_CONFIG_VALUESIZE_TOO_LOW);
1309            result = SL_RESULT_BUFFER_INSUFFICIENT;
1310        } else {
1311            result = audioPlayer_setStreamType(ap, *(SLuint32*)pConfigValue);
1312        }
1313
1314    } else {
1315        SL_LOGE(ERROR_CONFIG_UNKNOWN_KEY);
1316        result = SL_RESULT_PARAMETER_INVALID;
1317    }
1318
1319    return result;
1320}
1321
1322
1323//-----------------------------------------------------------------------------
1324SLresult android_audioPlayer_getConfig(CAudioPlayer* ap, const SLchar *configKey,
1325        SLuint32* pValueSize, void *pConfigValue) {
1326
1327    SLresult result;
1328
1329    assert(NULL != ap && NULL != configKey && NULL != pValueSize);
1330    if(strcmp((const char*)configKey, (const char*)SL_ANDROID_KEY_STREAM_TYPE) == 0) {
1331
1332        // stream type
1333        if (NULL == pConfigValue) {
1334            result = SL_RESULT_SUCCESS;
1335        } else if (KEY_STREAM_TYPE_PARAMSIZE > *pValueSize) {
1336            SL_LOGE(ERROR_CONFIG_VALUESIZE_TOO_LOW);
1337            result = SL_RESULT_BUFFER_INSUFFICIENT;
1338        } else {
1339            result = audioPlayer_getStreamType(ap, (SLint32*)pConfigValue);
1340        }
1341        *pValueSize = KEY_STREAM_TYPE_PARAMSIZE;
1342
1343    } else {
1344        SL_LOGE(ERROR_CONFIG_UNKNOWN_KEY);
1345        result = SL_RESULT_PARAMETER_INVALID;
1346    }
1347
1348    return result;
1349}
1350
1351
1352//-----------------------------------------------------------------------------
1353// FIXME abstract out the diff between CMediaPlayer and CAudioPlayer
1354SLresult android_audioPlayer_realize(CAudioPlayer *pAudioPlayer, SLboolean async) {
1355
1356    SLresult result = SL_RESULT_SUCCESS;
1357    SL_LOGV("Realize pAudioPlayer=%p", pAudioPlayer);
1358
1359    switch (pAudioPlayer->mAndroidObjType) {
1360    //-----------------------------------
1361    // AudioTrack
1362    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
1363        {
1364        // initialize platform-specific CAudioPlayer fields
1365
1366        SLDataLocator_BufferQueue *dl_bq =  (SLDataLocator_BufferQueue *)
1367                pAudioPlayer->mDynamicSource.mDataSource;
1368        SLDataFormat_PCM *df_pcm = (SLDataFormat_PCM *)
1369                pAudioPlayer->mDynamicSource.mDataSource->pFormat;
1370
1371        uint32_t sampleRate = sles_to_android_sampleRate(df_pcm->samplesPerSec);
1372
1373        pAudioPlayer->mAudioTrack = new android::AudioTrackProxy(new android::AudioTrack(
1374                pAudioPlayer->mStreamType,                           // streamType
1375                sampleRate,                                          // sampleRate
1376                sles_to_android_sampleFormat(df_pcm->bitsPerSample), // format
1377                sles_to_android_channelMaskOut(df_pcm->numChannels, df_pcm->channelMask),
1378                                                                     //channel mask
1379                0,                                                   // frameCount (here min)
1380                0,                                                   // flags
1381                audioTrack_callBack_pullFromBuffQueue,               // callback
1382                (void *) pAudioPlayer,                               // user
1383                0      // FIXME find appropriate frame count         // notificationFrame
1384                , pAudioPlayer->mSessionId
1385                ));
1386        android::status_t status = pAudioPlayer->mAudioTrack->initCheck();
1387        if (status != android::NO_ERROR) {
1388            SL_LOGE("AudioTrack::initCheck status %u", status);
1389            result = SL_RESULT_CONTENT_UNSUPPORTED;
1390            pAudioPlayer->mAudioTrack.clear();
1391            return result;
1392        }
1393
1394        // initialize platform-independent CAudioPlayer fields
1395
1396        pAudioPlayer->mNumChannels = df_pcm->numChannels;
1397        pAudioPlayer->mSampleRateMilliHz = df_pcm->samplesPerSec; // Note: bad field name in SL ES
1398
1399        // This use case does not have a separate "prepare" step
1400        pAudioPlayer->mAndroidObjState = ANDROID_READY;
1401        }
1402        break;
1403    //-----------------------------------
1404    // MediaPlayer
1405    case AUDIOPLAYER_FROM_URIFD: {
1406        assert(pAudioPlayer->mAndroidObjState == ANDROID_UNINITIALIZED);
1407        assert(pAudioPlayer->mNumChannels == UNKNOWN_NUMCHANNELS);
1408        assert(pAudioPlayer->mSampleRateMilliHz == UNKNOWN_SAMPLERATE);
1409        assert(pAudioPlayer->mAudioTrack == 0);
1410
1411        AudioPlayback_Parameters app;
1412        app.sessionId = pAudioPlayer->mSessionId;
1413        app.streamType = pAudioPlayer->mStreamType;
1414
1415        pAudioPlayer->mAPlayer = new android::LocAVPlayer(&app, false /*hasVideo*/);
1416        pAudioPlayer->mAPlayer->init(sfplayer_handlePrefetchEvent,
1417                        (void*)pAudioPlayer /*notifUSer*/);
1418
1419        switch (pAudioPlayer->mDataSource.mLocator.mLocatorType) {
1420            case SL_DATALOCATOR_URI: {
1421                // The legacy implementation ran Stagefright within the application process, and
1422                // so allowed local pathnames specified by URI that were openable by
1423                // the application but were not openable by mediaserver.
1424                // The current implementation runs Stagefright (mostly) within mediaserver,
1425                // which runs as a different UID and likely a different current working directory.
1426                // For backwards compatibility with any applications which may have relied on the
1427                // previous behavior, we convert an openable file URI into an FD.
1428                // Note that unlike SL_DATALOCATOR_ANDROIDFD, this FD is owned by us
1429                // and so we close it as soon as we've passed it (via Binder dup) to mediaserver.
1430                const char *uri = (const char *)pAudioPlayer->mDataSource.mLocator.mURI.URI;
1431                if (!isDistantProtocol(uri)) {
1432                    // don't touch the original uri, we may need it later
1433                    const char *pathname = uri;
1434                    // skip over an optional leading file:// prefix
1435                    if (!strncasecmp(pathname, "file://", 7)) {
1436                        pathname += 7;
1437                    }
1438                    // attempt to open it as a file using the application's credentials
1439                    int fd = ::open(pathname, O_RDONLY);
1440                    if (fd >= 0) {
1441                        // if open is successful, then check to see if it's a regular file
1442                        struct stat statbuf;
1443                        if (!::fstat(fd, &statbuf) && S_ISREG(statbuf.st_mode)) {
1444                            // treat similarly to an FD data locator, but
1445                            // let setDataSource take responsibility for closing fd
1446                            pAudioPlayer->mAPlayer->setDataSource(fd, 0, statbuf.st_size, true);
1447                            break;
1448                        }
1449                        // we were able to open it, but it's not a file, so let mediaserver try
1450                        (void) ::close(fd);
1451                    }
1452                }
1453                // if either the URI didn't look like a file, or open failed, or not a file
1454                pAudioPlayer->mAPlayer->setDataSource(uri);
1455                } break;
1456            case SL_DATALOCATOR_ANDROIDFD: {
1457                int64_t offset = (int64_t)pAudioPlayer->mDataSource.mLocator.mFD.offset;
1458                pAudioPlayer->mAPlayer->setDataSource(
1459                        (int)pAudioPlayer->mDataSource.mLocator.mFD.fd,
1460                        offset == SL_DATALOCATOR_ANDROIDFD_USE_FILE_SIZE ?
1461                                (int64_t)PLAYER_FD_FIND_FILE_SIZE : offset,
1462                        (int64_t)pAudioPlayer->mDataSource.mLocator.mFD.length);
1463                }
1464                break;
1465            default:
1466                SL_LOGE(ERROR_PLAYERREALIZE_UNKNOWN_DATASOURCE_LOCATOR);
1467                break;
1468        }
1469
1470        }
1471        break;
1472    //-----------------------------------
1473    // StreamPlayer
1474    case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE: {
1475        AudioPlayback_Parameters ap_params;
1476        ap_params.sessionId = pAudioPlayer->mSessionId;
1477        ap_params.streamType = pAudioPlayer->mStreamType;
1478        android::StreamPlayer* splr = new android::StreamPlayer(&ap_params, false /*hasVideo*/,
1479                &pAudioPlayer->mAndroidBufferQueue, pAudioPlayer->mCallbackProtector);
1480        pAudioPlayer->mAPlayer = splr;
1481        splr->init(sfplayer_handlePrefetchEvent, (void*)pAudioPlayer);
1482        }
1483        break;
1484    //-----------------------------------
1485    // AudioToCbRenderer
1486    case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE: {
1487        AudioPlayback_Parameters app;
1488        app.sessionId = pAudioPlayer->mSessionId;
1489        app.streamType = pAudioPlayer->mStreamType;
1490
1491        android::AudioToCbRenderer* decoder = new android::AudioToCbRenderer(&app);
1492        pAudioPlayer->mAPlayer = decoder;
1493        // configures the callback for the sink buffer queue
1494        decoder->setDataPushListener(adecoder_writeToBufferQueue, pAudioPlayer);
1495        // configures the callback for the notifications coming from the SF code
1496        decoder->init(sfplayer_handlePrefetchEvent, (void*)pAudioPlayer);
1497
1498        switch (pAudioPlayer->mDataSource.mLocator.mLocatorType) {
1499        case SL_DATALOCATOR_URI:
1500            decoder->setDataSource(
1501                    (const char*)pAudioPlayer->mDataSource.mLocator.mURI.URI);
1502            break;
1503        case SL_DATALOCATOR_ANDROIDFD: {
1504            int64_t offset = (int64_t)pAudioPlayer->mDataSource.mLocator.mFD.offset;
1505            decoder->setDataSource(
1506                    (int)pAudioPlayer->mDataSource.mLocator.mFD.fd,
1507                    offset == SL_DATALOCATOR_ANDROIDFD_USE_FILE_SIZE ?
1508                            (int64_t)PLAYER_FD_FIND_FILE_SIZE : offset,
1509                            (int64_t)pAudioPlayer->mDataSource.mLocator.mFD.length);
1510            }
1511            break;
1512        default:
1513            SL_LOGE(ERROR_PLAYERREALIZE_UNKNOWN_DATASOURCE_LOCATOR);
1514            break;
1515        }
1516
1517        }
1518        break;
1519    //-----------------------------------
1520    // AacBqToPcmCbRenderer
1521    case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE: {
1522        AudioPlayback_Parameters app;
1523        app.sessionId = pAudioPlayer->mSessionId;
1524        app.streamType = pAudioPlayer->mStreamType;
1525        android::AacBqToPcmCbRenderer* bqtobq = new android::AacBqToPcmCbRenderer(&app);
1526        // configures the callback for the sink buffer queue
1527        bqtobq->setDataPushListener(adecoder_writeToBufferQueue, pAudioPlayer);
1528        pAudioPlayer->mAPlayer = bqtobq;
1529        // configures the callback for the notifications coming from the SF code,
1530        // but also implicitly configures the AndroidBufferQueue from which ADTS data is read
1531        pAudioPlayer->mAPlayer->init(sfplayer_handlePrefetchEvent, (void*)pAudioPlayer);
1532        }
1533        break;
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
1542    // proceed with effect initialization
1543    // initialize EQ
1544    // FIXME use a table of effect descriptors when adding support for more effects
1545    if (memcmp(SL_IID_EQUALIZER, &pAudioPlayer->mEqualizer.mEqDescriptor.type,
1546            sizeof(effect_uuid_t)) == 0) {
1547        SL_LOGV("Need to initialize EQ for AudioPlayer=%p", pAudioPlayer);
1548        android_eq_init(pAudioPlayer->mSessionId, &pAudioPlayer->mEqualizer);
1549    }
1550    // initialize BassBoost
1551    if (memcmp(SL_IID_BASSBOOST, &pAudioPlayer->mBassBoost.mBassBoostDescriptor.type,
1552            sizeof(effect_uuid_t)) == 0) {
1553        SL_LOGV("Need to initialize BassBoost for AudioPlayer=%p", pAudioPlayer);
1554        android_bb_init(pAudioPlayer->mSessionId, &pAudioPlayer->mBassBoost);
1555    }
1556    // initialize Virtualizer
1557    if (memcmp(SL_IID_VIRTUALIZER, &pAudioPlayer->mVirtualizer.mVirtualizerDescriptor.type,
1558               sizeof(effect_uuid_t)) == 0) {
1559        SL_LOGV("Need to initialize Virtualizer for AudioPlayer=%p", pAudioPlayer);
1560        android_virt_init(pAudioPlayer->mSessionId, &pAudioPlayer->mVirtualizer);
1561    }
1562
1563    // initialize EffectSend
1564    // FIXME initialize EffectSend
1565
1566    return result;
1567}
1568
1569
1570//-----------------------------------------------------------------------------
1571/**
1572 * Called with a lock on AudioPlayer, and blocks until safe to destroy
1573 */
1574SLresult android_audioPlayer_preDestroy(CAudioPlayer *pAudioPlayer) {
1575    SL_LOGD("android_audioPlayer_preDestroy(%p)", pAudioPlayer);
1576    SLresult result = SL_RESULT_SUCCESS;
1577
1578  bool disableCallbacksBeforePreDestroy;
1579  switch (pAudioPlayer->mAndroidObjType) {
1580  // Not yet clear why this order is important, but it reduces detected deadlocks
1581  case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1582    disableCallbacksBeforePreDestroy = true;
1583    break;
1584  // Use the old behavior for all other use cases until proven
1585  // case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1586  default:
1587    disableCallbacksBeforePreDestroy = false;
1588    break;
1589  }
1590
1591  if (disableCallbacksBeforePreDestroy) {
1592    object_unlock_exclusive(&pAudioPlayer->mObject);
1593    if (pAudioPlayer->mCallbackProtector != 0) {
1594        pAudioPlayer->mCallbackProtector->requestCbExitAndWait();
1595    }
1596    object_lock_exclusive(&pAudioPlayer->mObject);
1597  }
1598
1599    if (pAudioPlayer->mAPlayer != 0) {
1600        pAudioPlayer->mAPlayer->preDestroy();
1601    }
1602    SL_LOGD("android_audioPlayer_preDestroy(%p) after mAPlayer->preDestroy()", pAudioPlayer);
1603
1604  if (!disableCallbacksBeforePreDestroy) {
1605    object_unlock_exclusive(&pAudioPlayer->mObject);
1606    if (pAudioPlayer->mCallbackProtector != 0) {
1607        pAudioPlayer->mCallbackProtector->requestCbExitAndWait();
1608    }
1609    object_lock_exclusive(&pAudioPlayer->mObject);
1610  }
1611
1612    return result;
1613}
1614
1615
1616//-----------------------------------------------------------------------------
1617SLresult android_audioPlayer_destroy(CAudioPlayer *pAudioPlayer) {
1618    SLresult result = SL_RESULT_SUCCESS;
1619    SL_LOGV("android_audioPlayer_destroy(%p)", pAudioPlayer);
1620    switch (pAudioPlayer->mAndroidObjType) {
1621
1622    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
1623        // We own the audio track for PCM buffer queue players
1624        if (pAudioPlayer->mAudioTrack != 0) {
1625            pAudioPlayer->mAudioTrack->stop();
1626            // Note that there may still be another reference in post-unlock phase of SetPlayState
1627            pAudioPlayer->mAudioTrack.clear();
1628        }
1629        break;
1630
1631    case AUDIOPLAYER_FROM_URIFD:     // intended fall-through
1632    case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:    // intended fall-through
1633    case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE: // intended fall-through
1634    case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1635        pAudioPlayer->mAPlayer.clear();
1636        break;
1637    //-----------------------------------
1638    default:
1639        SL_LOGE(ERROR_PLAYERDESTROY_UNEXPECTED_OBJECT_TYPE_D, pAudioPlayer->mAndroidObjType);
1640        result = SL_RESULT_INTERNAL_ERROR;
1641        break;
1642    }
1643
1644    pAudioPlayer->mCallbackProtector.clear();
1645
1646    // FIXME might not be needed
1647    pAudioPlayer->mAndroidObjType = INVALID_TYPE;
1648
1649    // explicit destructor
1650    pAudioPlayer->mAudioTrack.~sp();
1651    // note that SetPlayState(PLAYING) may still hold a reference
1652    pAudioPlayer->mCallbackProtector.~sp();
1653    pAudioPlayer->mAuxEffect.~sp();
1654    pAudioPlayer->mAPlayer.~sp();
1655
1656    return result;
1657}
1658
1659
1660//-----------------------------------------------------------------------------
1661SLresult android_audioPlayer_setPlaybackRateAndConstraints(CAudioPlayer *ap, SLpermille rate,
1662        SLuint32 constraints) {
1663    SLresult result = SL_RESULT_SUCCESS;
1664    switch(ap->mAndroidObjType) {
1665    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE: {
1666        // these asserts were already checked by the platform-independent layer
1667        assert((AUDIOTRACK_MIN_PLAYBACKRATE_PERMILLE <= rate) &&
1668                (rate <= AUDIOTRACK_MAX_PLAYBACKRATE_PERMILLE));
1669        assert(constraints & SL_RATEPROP_NOPITCHCORAUDIO);
1670        // get the content sample rate
1671        uint32_t contentRate = sles_to_android_sampleRate(ap->mSampleRateMilliHz);
1672        // apply the SL ES playback rate on the AudioTrack as a factor of its content sample rate
1673        if (ap->mAudioTrack != 0) {
1674            ap->mAudioTrack->setSampleRate(contentRate * (rate/1000.0f));
1675        }
1676        }
1677        break;
1678    case AUDIOPLAYER_FROM_URIFD:
1679        assert(rate == 1000);
1680        assert(constraints & SL_RATEPROP_NOPITCHCORAUDIO);
1681        // that was easy
1682        break;
1683
1684    default:
1685        SL_LOGE("Unexpected object type %d", ap->mAndroidObjType);
1686        result = SL_RESULT_FEATURE_UNSUPPORTED;
1687        break;
1688    }
1689    return result;
1690}
1691
1692
1693//-----------------------------------------------------------------------------
1694// precondition
1695//  called with no lock held
1696//  ap != NULL
1697//  pItemCount != NULL
1698SLresult android_audioPlayer_metadata_getItemCount(CAudioPlayer *ap, SLuint32 *pItemCount) {
1699    if (ap->mAPlayer == 0) {
1700        return SL_RESULT_PARAMETER_INVALID;
1701    }
1702    switch(ap->mAndroidObjType) {
1703      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1704      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1705        {
1706            android::AudioSfDecoder* decoder =
1707                    static_cast<android::AudioSfDecoder*>(ap->mAPlayer.get());
1708            *pItemCount = decoder->getPcmFormatKeyCount();
1709        }
1710        break;
1711      default:
1712        *pItemCount = 0;
1713        break;
1714    }
1715    return SL_RESULT_SUCCESS;
1716}
1717
1718
1719//-----------------------------------------------------------------------------
1720// precondition
1721//  called with no lock held
1722//  ap != NULL
1723//  pKeySize != NULL
1724SLresult android_audioPlayer_metadata_getKeySize(CAudioPlayer *ap,
1725        SLuint32 index, SLuint32 *pKeySize) {
1726    if (ap->mAPlayer == 0) {
1727        return SL_RESULT_PARAMETER_INVALID;
1728    }
1729    SLresult res = SL_RESULT_SUCCESS;
1730    switch(ap->mAndroidObjType) {
1731      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1732      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1733        {
1734            android::AudioSfDecoder* decoder =
1735                    static_cast<android::AudioSfDecoder*>(ap->mAPlayer.get());
1736            SLuint32 keyNameSize = 0;
1737            if (!decoder->getPcmFormatKeySize(index, &keyNameSize)) {
1738                res = SL_RESULT_PARAMETER_INVALID;
1739            } else {
1740                // *pKeySize is the size of the region used to store the key name AND
1741                //   the information about the key (size, lang, encoding)
1742                *pKeySize = keyNameSize + sizeof(SLMetadataInfo);
1743            }
1744        }
1745        break;
1746      default:
1747        *pKeySize = 0;
1748        res = SL_RESULT_PARAMETER_INVALID;
1749        break;
1750    }
1751    return res;
1752}
1753
1754
1755//-----------------------------------------------------------------------------
1756// precondition
1757//  called with no lock held
1758//  ap != NULL
1759//  pKey != NULL
1760SLresult android_audioPlayer_metadata_getKey(CAudioPlayer *ap,
1761        SLuint32 index, SLuint32 size, SLMetadataInfo *pKey) {
1762    if (ap->mAPlayer == 0) {
1763        return SL_RESULT_PARAMETER_INVALID;
1764    }
1765    SLresult res = SL_RESULT_SUCCESS;
1766    switch(ap->mAndroidObjType) {
1767      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1768      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1769        {
1770            android::AudioSfDecoder* decoder =
1771                    static_cast<android::AudioSfDecoder*>(ap->mAPlayer.get());
1772            if ((size < sizeof(SLMetadataInfo) ||
1773                    (!decoder->getPcmFormatKeyName(index, size - sizeof(SLMetadataInfo),
1774                            (char*)pKey->data)))) {
1775                res = SL_RESULT_PARAMETER_INVALID;
1776            } else {
1777                // successfully retrieved the key value, update the other fields
1778                pKey->encoding = SL_CHARACTERENCODING_UTF8;
1779                memcpy((char *) pKey->langCountry, "en", 3);
1780                pKey->size = strlen((char*)pKey->data) + 1;
1781            }
1782        }
1783        break;
1784      default:
1785        res = SL_RESULT_PARAMETER_INVALID;
1786        break;
1787    }
1788    return res;
1789}
1790
1791
1792//-----------------------------------------------------------------------------
1793// precondition
1794//  called with no lock held
1795//  ap != NULL
1796//  pValueSize != NULL
1797SLresult android_audioPlayer_metadata_getValueSize(CAudioPlayer *ap,
1798        SLuint32 index, SLuint32 *pValueSize) {
1799    if (ap->mAPlayer == 0) {
1800        return SL_RESULT_PARAMETER_INVALID;
1801    }
1802    SLresult res = SL_RESULT_SUCCESS;
1803    switch(ap->mAndroidObjType) {
1804      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1805      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1806        {
1807            android::AudioSfDecoder* decoder =
1808                    static_cast<android::AudioSfDecoder*>(ap->mAPlayer.get());
1809            SLuint32 valueSize = 0;
1810            if (!decoder->getPcmFormatValueSize(index, &valueSize)) {
1811                res = SL_RESULT_PARAMETER_INVALID;
1812            } else {
1813                // *pValueSize is the size of the region used to store the key value AND
1814                //   the information about the value (size, lang, encoding)
1815                *pValueSize = valueSize + sizeof(SLMetadataInfo);
1816            }
1817        }
1818        break;
1819      default:
1820          *pValueSize = 0;
1821          res = SL_RESULT_PARAMETER_INVALID;
1822          break;
1823    }
1824    return res;
1825}
1826
1827
1828//-----------------------------------------------------------------------------
1829// precondition
1830//  called with no lock held
1831//  ap != NULL
1832//  pValue != NULL
1833SLresult android_audioPlayer_metadata_getValue(CAudioPlayer *ap,
1834        SLuint32 index, SLuint32 size, SLMetadataInfo *pValue) {
1835    if (ap->mAPlayer == 0) {
1836        return SL_RESULT_PARAMETER_INVALID;
1837    }
1838    SLresult res = SL_RESULT_SUCCESS;
1839    switch(ap->mAndroidObjType) {
1840      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1841      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1842        {
1843            android::AudioSfDecoder* decoder =
1844                    static_cast<android::AudioSfDecoder*>(ap->mAPlayer.get());
1845            pValue->encoding = SL_CHARACTERENCODING_BINARY;
1846            memcpy((char *) pValue->langCountry, "en", 3); // applicable here?
1847            SLuint32 valueSize = 0;
1848            if ((size < sizeof(SLMetadataInfo)
1849                    || (!decoder->getPcmFormatValueSize(index, &valueSize))
1850                    || (!decoder->getPcmFormatKeyValue(index, size - sizeof(SLMetadataInfo),
1851                            (SLuint32*)pValue->data)))) {
1852                res = SL_RESULT_PARAMETER_INVALID;
1853            } else {
1854                pValue->size = valueSize;
1855            }
1856        }
1857        break;
1858      default:
1859        res = SL_RESULT_PARAMETER_INVALID;
1860        break;
1861    }
1862    return res;
1863}
1864
1865//-----------------------------------------------------------------------------
1866// preconditions
1867//  ap != NULL
1868//  mutex is locked
1869//  play state has changed
1870void android_audioPlayer_setPlayState(CAudioPlayer *ap) {
1871
1872    SLuint32 playState = ap->mPlay.mState;
1873    AndroidObjectState objState = ap->mAndroidObjState;
1874
1875    switch(ap->mAndroidObjType) {
1876    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
1877        switch (playState) {
1878        case SL_PLAYSTATE_STOPPED:
1879            SL_LOGV("setting AudioPlayer to SL_PLAYSTATE_STOPPED");
1880            if (ap->mAudioTrack != 0) {
1881                ap->mAudioTrack->stop();
1882            }
1883            break;
1884        case SL_PLAYSTATE_PAUSED:
1885            SL_LOGV("setting AudioPlayer to SL_PLAYSTATE_PAUSED");
1886            if (ap->mAudioTrack != 0) {
1887                ap->mAudioTrack->pause();
1888            }
1889            break;
1890        case SL_PLAYSTATE_PLAYING:
1891            SL_LOGV("setting AudioPlayer to SL_PLAYSTATE_PLAYING");
1892            if (ap->mAudioTrack != 0) {
1893                // instead of ap->mAudioTrack->start();
1894                ap->mDeferredStart = true;
1895            }
1896            break;
1897        default:
1898            // checked by caller, should not happen
1899            break;
1900        }
1901        break;
1902
1903    case AUDIOPLAYER_FROM_URIFD:      // intended fall-through
1904    case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:     // intended fall-through
1905    case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:  // intended fall-through
1906    case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1907        // FIXME report and use the return code to the lock mechanism, which is where play state
1908        //   changes are updated (see object_unlock_exclusive_attributes())
1909        aplayer_setPlayState(ap->mAPlayer, playState, &(ap->mAndroidObjState));
1910        break;
1911    default:
1912        SL_LOGE(ERROR_PLAYERSETPLAYSTATE_UNEXPECTED_OBJECT_TYPE_D, ap->mAndroidObjType);
1913        break;
1914    }
1915}
1916
1917
1918//-----------------------------------------------------------------------------
1919// call when either player event flags, marker position, or position update period changes
1920void android_audioPlayer_usePlayEventMask(CAudioPlayer *ap) {
1921    IPlay *pPlayItf = &ap->mPlay;
1922    SLuint32 eventFlags = pPlayItf->mEventFlags;
1923    /*switch(ap->mAndroidObjType) {
1924    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:*/
1925
1926    if (ap->mAPlayer != 0) {
1927        assert(ap->mAudioTrack == 0);
1928        ap->mAPlayer->setPlayEvents((int32_t) eventFlags, (int32_t) pPlayItf->mMarkerPosition,
1929                (int32_t) pPlayItf->mPositionUpdatePeriod);
1930        return;
1931    }
1932
1933    if (ap->mAudioTrack == 0) {
1934        return;
1935    }
1936
1937    if (eventFlags & SL_PLAYEVENT_HEADATMARKER) {
1938        ap->mAudioTrack->setMarkerPosition((uint32_t)((((int64_t)pPlayItf->mMarkerPosition
1939                * sles_to_android_sampleRate(ap->mSampleRateMilliHz)))/1000));
1940    } else {
1941        // clear marker
1942        ap->mAudioTrack->setMarkerPosition(0);
1943    }
1944
1945    if (eventFlags & SL_PLAYEVENT_HEADATNEWPOS) {
1946         ap->mAudioTrack->setPositionUpdatePeriod(
1947                (uint32_t)((((int64_t)pPlayItf->mPositionUpdatePeriod
1948                * sles_to_android_sampleRate(ap->mSampleRateMilliHz)))/1000));
1949    } else {
1950        // clear periodic update
1951        ap->mAudioTrack->setPositionUpdatePeriod(0);
1952    }
1953
1954    if (eventFlags & SL_PLAYEVENT_HEADATEND) {
1955        // nothing to do for SL_PLAYEVENT_HEADATEND, callback event will be checked against mask
1956    }
1957
1958    if (eventFlags & SL_PLAYEVENT_HEADMOVING) {
1959        // FIXME support SL_PLAYEVENT_HEADMOVING
1960        SL_LOGD("[ FIXME: IPlay_SetCallbackEventsMask(SL_PLAYEVENT_HEADMOVING) on an "
1961            "SL_OBJECTID_AUDIOPLAYER to be implemented ]");
1962    }
1963    if (eventFlags & SL_PLAYEVENT_HEADSTALLED) {
1964        // nothing to do for SL_PLAYEVENT_HEADSTALLED, callback event will be checked against mask
1965    }
1966
1967}
1968
1969
1970//-----------------------------------------------------------------------------
1971SLresult android_audioPlayer_getDuration(IPlay *pPlayItf, SLmillisecond *pDurMsec) {
1972    CAudioPlayer *ap = (CAudioPlayer *)pPlayItf->mThis;
1973    switch(ap->mAndroidObjType) {
1974
1975      case AUDIOPLAYER_FROM_URIFD:  // intended fall-through
1976      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE: {
1977        int32_t durationMsec = ANDROID_UNKNOWN_TIME;
1978        if (ap->mAPlayer != 0) {
1979            ap->mAPlayer->getDurationMsec(&durationMsec);
1980        }
1981        *pDurMsec = durationMsec == ANDROID_UNKNOWN_TIME ? SL_TIME_UNKNOWN : durationMsec;
1982        break;
1983      }
1984
1985      case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE: // intended fall-through
1986      case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
1987      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1988      default: {
1989        *pDurMsec = SL_TIME_UNKNOWN;
1990      }
1991    }
1992    return SL_RESULT_SUCCESS;
1993}
1994
1995
1996//-----------------------------------------------------------------------------
1997void android_audioPlayer_getPosition(IPlay *pPlayItf, SLmillisecond *pPosMsec) {
1998    CAudioPlayer *ap = (CAudioPlayer *)pPlayItf->mThis;
1999    switch(ap->mAndroidObjType) {
2000
2001      case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
2002        if ((ap->mSampleRateMilliHz == UNKNOWN_SAMPLERATE) || (ap->mAudioTrack == 0)) {
2003            *pPosMsec = 0;
2004        } else {
2005            uint32_t positionInFrames;
2006            ap->mAudioTrack->getPosition(&positionInFrames);
2007            *pPosMsec = ((int64_t)positionInFrames * 1000) /
2008                    sles_to_android_sampleRate(ap->mSampleRateMilliHz);
2009        }
2010        break;
2011
2012      case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:    // intended fall-through
2013      case AUDIOPLAYER_FROM_URIFD:
2014      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
2015      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE: {
2016        int32_t posMsec = ANDROID_UNKNOWN_TIME;
2017        if (ap->mAPlayer != 0) {
2018            ap->mAPlayer->getPositionMsec(&posMsec);
2019        }
2020        *pPosMsec = posMsec == ANDROID_UNKNOWN_TIME ? 0 : posMsec;
2021        break;
2022      }
2023
2024      default:
2025        *pPosMsec = 0;
2026    }
2027}
2028
2029
2030//-----------------------------------------------------------------------------
2031SLresult android_audioPlayer_seek(CAudioPlayer *ap, SLmillisecond posMsec) {
2032    SLresult result = SL_RESULT_SUCCESS;
2033
2034    switch(ap->mAndroidObjType) {
2035
2036      case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:      // intended fall-through
2037      case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:
2038      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
2039        result = SL_RESULT_FEATURE_UNSUPPORTED;
2040        break;
2041
2042      case AUDIOPLAYER_FROM_URIFD:                   // intended fall-through
2043      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
2044        if (ap->mAPlayer != 0) {
2045            ap->mAPlayer->seek(posMsec);
2046        }
2047        break;
2048
2049      default:
2050        break;
2051    }
2052    return result;
2053}
2054
2055
2056//-----------------------------------------------------------------------------
2057SLresult android_audioPlayer_loop(CAudioPlayer *ap, SLboolean loopEnable) {
2058    SLresult result = SL_RESULT_SUCCESS;
2059
2060    switch (ap->mAndroidObjType) {
2061    case AUDIOPLAYER_FROM_URIFD:
2062    // case AUDIOPLAY_FROM_URIFD_TO_PCM_BUFFERQUEUE:
2063    //      would actually work, but what's the point?
2064      if (ap->mAPlayer != 0) {
2065        ap->mAPlayer->loop((bool)loopEnable);
2066      }
2067      break;
2068    default:
2069      result = SL_RESULT_FEATURE_UNSUPPORTED;
2070      break;
2071    }
2072    return result;
2073}
2074
2075
2076//-----------------------------------------------------------------------------
2077SLresult android_audioPlayer_setBufferingUpdateThresholdPerMille(CAudioPlayer *ap,
2078        SLpermille threshold) {
2079    SLresult result = SL_RESULT_SUCCESS;
2080
2081    switch (ap->mAndroidObjType) {
2082      case AUDIOPLAYER_FROM_URIFD:
2083        if (ap->mAPlayer != 0) {
2084            ap->mAPlayer->setBufferingUpdateThreshold(threshold / 10);
2085        }
2086        break;
2087
2088      default: {}
2089    }
2090
2091    return result;
2092}
2093
2094
2095//-----------------------------------------------------------------------------
2096void android_audioPlayer_bufferQueue_onRefilled_l(CAudioPlayer *ap) {
2097    // the AudioTrack associated with the AudioPlayer receiving audio from a PCM buffer
2098    // queue was stopped when the queue become empty, we restart as soon as a new buffer
2099    // has been enqueued since we're in playing state
2100    if (ap->mAudioTrack != 0) {
2101        // instead of ap->mAudioTrack->start();
2102        ap->mDeferredStart = true;
2103    }
2104
2105    // when the queue became empty, an underflow on the prefetch status itf was sent. Now the queue
2106    // has received new data, signal it has sufficient data
2107    if (IsInterfaceInitialized(&(ap->mObject), MPH_PREFETCHSTATUS)) {
2108        // we wouldn't have been called unless we were previously in the underflow state
2109        assert(SL_PREFETCHSTATUS_UNDERFLOW == ap->mPrefetchStatus.mStatus);
2110        assert(0 == ap->mPrefetchStatus.mLevel);
2111        ap->mPrefetchStatus.mStatus = SL_PREFETCHSTATUS_SUFFICIENTDATA;
2112        ap->mPrefetchStatus.mLevel = 1000;
2113        // callback or no callback?
2114        SLuint32 prefetchEvents = ap->mPrefetchStatus.mCallbackEventsMask &
2115                (SL_PREFETCHEVENT_STATUSCHANGE | SL_PREFETCHEVENT_FILLLEVELCHANGE);
2116        if (SL_PREFETCHEVENT_NONE != prefetchEvents) {
2117            ap->mPrefetchStatus.mDeferredPrefetchCallback = ap->mPrefetchStatus.mCallback;
2118            ap->mPrefetchStatus.mDeferredPrefetchContext  = ap->mPrefetchStatus.mContext;
2119            ap->mPrefetchStatus.mDeferredPrefetchEvents   = prefetchEvents;
2120        }
2121    }
2122}
2123
2124
2125//-----------------------------------------------------------------------------
2126/*
2127 * BufferQueue::Clear
2128 */
2129SLresult android_audioPlayer_bufferQueue_onClear(CAudioPlayer *ap) {
2130    SLresult result = SL_RESULT_SUCCESS;
2131
2132    switch (ap->mAndroidObjType) {
2133    //-----------------------------------
2134    // AudioTrack
2135    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
2136        if (ap->mAudioTrack != 0) {
2137            ap->mAudioTrack->flush();
2138        }
2139        break;
2140    default:
2141        result = SL_RESULT_INTERNAL_ERROR;
2142        break;
2143    }
2144
2145    return result;
2146}
2147
2148
2149//-----------------------------------------------------------------------------
2150SLresult android_audioPlayer_androidBufferQueue_registerCallback_l(CAudioPlayer *ap) {
2151    SLresult result = SL_RESULT_SUCCESS;
2152    assert(ap->mAPlayer != 0);
2153    // FIXME investigate why these two cases are not handled symmetrically any more
2154    switch (ap->mAndroidObjType) {
2155      case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE: {
2156        } break;
2157      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE: {
2158          android::AacBqToPcmCbRenderer* dec =
2159                  static_cast<android::AacBqToPcmCbRenderer*>(ap->mAPlayer.get());
2160          dec->registerSourceQueueCallback((const void*)ap /*user*/,
2161                  ap->mAndroidBufferQueue.mContext /*context*/,
2162                  (const void*)&(ap->mAndroidBufferQueue.mItf) /*caller*/);
2163        } break;
2164      default:
2165        SL_LOGE("Error registering AndroidBufferQueue callback: unexpected object type %d",
2166                ap->mAndroidObjType);
2167        result = SL_RESULT_INTERNAL_ERROR;
2168        break;
2169    }
2170    return result;
2171}
2172
2173//-----------------------------------------------------------------------------
2174void android_audioPlayer_androidBufferQueue_clear_l(CAudioPlayer *ap) {
2175    switch (ap->mAndroidObjType) {
2176    case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:
2177      if (ap->mAPlayer != 0) {
2178        android::StreamPlayer* splr = static_cast<android::StreamPlayer*>(ap->mAPlayer.get());
2179        splr->appClear_l();
2180      } break;
2181    case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
2182      // nothing to do here, fall through
2183    default:
2184      break;
2185    }
2186}
2187
2188void android_audioPlayer_androidBufferQueue_onRefilled_l(CAudioPlayer *ap) {
2189    switch (ap->mAndroidObjType) {
2190    case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:
2191      if (ap->mAPlayer != 0) {
2192        android::StreamPlayer* splr = static_cast<android::StreamPlayer*>(ap->mAPlayer.get());
2193        splr->queueRefilled();
2194      } break;
2195    case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
2196      // FIXME this may require waking up the decoder if it is currently starved and isn't polling
2197    default:
2198      break;
2199    }
2200}
2201