AudioPlayer_to_android.cpp revision 7f5cc1afe49395fefaad9b2bbd728a45d1bfda6a 
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
23#include <system/audio.h>
24
25template class android::KeyedVector<SLuint32, android::AudioEffect* > ;
26
27#define KEY_STREAM_TYPE_PARAMSIZE  sizeof(SLint32)
28
29//-----------------------------------------------------------------------------
30// FIXME this method will be absorbed into android_audioPlayer_setPlayState() once
31//       bufferqueue and uri/fd playback are moved under the GenericPlayer C++ object
32SLresult aplayer_setPlayState(const android::sp<android::GenericPlayer> &ap, SLuint32 playState,
33        AndroidObjectState* pObjState) {
34    SLresult result = SL_RESULT_SUCCESS;
35    AndroidObjectState objState = *pObjState;
36
37    switch (playState) {
38     case SL_PLAYSTATE_STOPPED:
39         SL_LOGV("setting GenericPlayer to SL_PLAYSTATE_STOPPED");
40         ap->stop();
41         break;
42     case SL_PLAYSTATE_PAUSED:
43         SL_LOGV("setting GenericPlayer to SL_PLAYSTATE_PAUSED");
44         switch(objState) {
45         case ANDROID_UNINITIALIZED:
46             *pObjState = ANDROID_PREPARING;
47             ap->prepare();
48             break;
49         case ANDROID_PREPARING:
50             break;
51         case ANDROID_READY:
52             ap->pause();
53             break;
54         default:
55             SL_LOGE(ERROR_PLAYERSETPLAYSTATE_INVALID_OBJECT_STATE_D, playState);
56             result = SL_RESULT_INTERNAL_ERROR;
57             break;
58         }
59         break;
60     case SL_PLAYSTATE_PLAYING: {
61         SL_LOGV("setting GenericPlayer to SL_PLAYSTATE_PLAYING");
62         switch(objState) {
63         case ANDROID_UNINITIALIZED:
64             *pObjState = ANDROID_PREPARING;
65             ap->prepare();
66             // intended fall through
67         case ANDROID_PREPARING:
68             // intended fall through
69         case ANDROID_READY:
70             ap->play();
71             break;
72         default:
73             SL_LOGE(ERROR_PLAYERSETPLAYSTATE_INVALID_OBJECT_STATE_D, playState);
74             result = SL_RESULT_INTERNAL_ERROR;
75             break;
76         }
77         }
78         break;
79     default:
80         // checked by caller, should not happen
81         SL_LOGE(ERROR_SHOULDNT_BE_HERE_S, "aplayer_setPlayState");
82         result = SL_RESULT_INTERNAL_ERROR;
83         break;
84     }
85
86    return result;
87}
88
89
90//-----------------------------------------------------------------------------
91// Callback associated with a AudioToCbRenderer of an SL ES AudioPlayer that gets its data
92// from a URI or FD, to write the decoded audio data to a buffer queue
93static size_t adecoder_writeToBufferQueue(const uint8_t *data, size_t size, void* user) {
94    size_t sizeConsumed = 0;
95    if (NULL == user) {
96        return sizeConsumed;
97    }
98    SL_LOGD("received %d bytes from decoder", size);
99    CAudioPlayer *ap = (CAudioPlayer *)user;
100    slBufferQueueCallback callback = NULL;
101    void * callbackPContext = NULL;
102
103    // push decoded data to the buffer queue
104    object_lock_exclusive(&ap->mObject);
105
106    if (ap->mBufferQueue.mState.count != 0) {
107        assert(ap->mBufferQueue.mFront != ap->mBufferQueue.mRear);
108
109        BufferHeader *oldFront = ap->mBufferQueue.mFront;
110        BufferHeader *newFront = &oldFront[1];
111
112        uint8_t *pDest = (uint8_t *)oldFront->mBuffer + ap->mBufferQueue.mSizeConsumed;
113        if (ap->mBufferQueue.mSizeConsumed + size < oldFront->mSize) {
114            // room to consume the whole or rest of the decoded data in one shot
115            ap->mBufferQueue.mSizeConsumed += size;
116            // consume data but no callback to the BufferQueue interface here
117            memcpy (pDest, data, size);
118            sizeConsumed = size;
119        } else {
120            // push as much as possible of the decoded data into the buffer queue
121            sizeConsumed = oldFront->mSize - ap->mBufferQueue.mSizeConsumed;
122
123            // the buffer at the head of the buffer queue is full, update the state
124            ap->mBufferQueue.mSizeConsumed = 0;
125            if (newFront ==  &ap->mBufferQueue.mArray[ap->mBufferQueue.mNumBuffers + 1]) {
126                newFront = ap->mBufferQueue.mArray;
127            }
128            ap->mBufferQueue.mFront = newFront;
129
130            ap->mBufferQueue.mState.count--;
131            ap->mBufferQueue.mState.playIndex++;
132            // consume data
133            memcpy (pDest, data, sizeConsumed);
134            // data has been copied to the buffer, and the buffer queue state has been updated
135            // we will notify the client if applicable
136            callback = ap->mBufferQueue.mCallback;
137            // save callback data
138            callbackPContext = ap->mBufferQueue.mContext;
139        }
140
141    } else {
142        // no available buffers in the queue to write the decoded data
143        sizeConsumed = 0;
144    }
145
146    object_unlock_exclusive(&ap->mObject);
147    // notify client
148    if (NULL != callback) {
149        (*callback)(&ap->mBufferQueue.mItf, callbackPContext);
150    }
151
152    return sizeConsumed;
153}
154
155//-----------------------------------------------------------------------------
156int android_getMinFrameCount(uint32_t sampleRate) {
157    int afSampleRate;
158    if (android::AudioSystem::getOutputSamplingRate(&afSampleRate,
159            ANDROID_DEFAULT_OUTPUT_STREAM_TYPE) != android::NO_ERROR) {
160        return ANDROID_DEFAULT_AUDIOTRACK_BUFFER_SIZE;
161    }
162    int afFrameCount;
163    if (android::AudioSystem::getOutputFrameCount(&afFrameCount,
164            ANDROID_DEFAULT_OUTPUT_STREAM_TYPE) != android::NO_ERROR) {
165        return ANDROID_DEFAULT_AUDIOTRACK_BUFFER_SIZE;
166    }
167    uint32_t afLatency;
168    if (android::AudioSystem::getOutputLatency(&afLatency,
169            ANDROID_DEFAULT_OUTPUT_STREAM_TYPE) != android::NO_ERROR) {
170        return ANDROID_DEFAULT_AUDIOTRACK_BUFFER_SIZE;
171    }
172    // minimum nb of buffers to cover output latency, given the size of each hardware audio buffer
173    uint32_t minBufCount = afLatency / ((1000 * afFrameCount)/afSampleRate);
174    if (minBufCount < 2) minBufCount = 2;
175    // minimum number of frames to cover output latency at the sample rate of the content
176    return (afFrameCount*sampleRate*minBufCount)/afSampleRate;
177}
178
179
180//-----------------------------------------------------------------------------
181#define LEFT_CHANNEL_MASK  0x1 << 0
182#define RIGHT_CHANNEL_MASK 0x1 << 1
183
184static void android_audioPlayer_updateStereoVolume(CAudioPlayer* ap) {
185    float leftVol = 1.0f, rightVol = 1.0f;
186
187    if (NULL == ap->mAudioTrack) {
188        return;
189    }
190    // should not be used when muted
191    if (SL_BOOLEAN_TRUE == ap->mMute) {
192        return;
193    }
194
195    int channelCount = ap->mNumChannels;
196
197    // mute has priority over solo
198    int leftAudibilityFactor = 1, rightAudibilityFactor = 1;
199
200    if (channelCount >= STEREO_CHANNELS) {
201        if (ap->mMuteMask & LEFT_CHANNEL_MASK) {
202            // left muted
203            leftAudibilityFactor = 0;
204        } else {
205            // left not muted
206            if (ap->mSoloMask & LEFT_CHANNEL_MASK) {
207                // left soloed
208                leftAudibilityFactor = 1;
209            } else {
210                // left not soloed
211                if (ap->mSoloMask & RIGHT_CHANNEL_MASK) {
212                    // right solo silences left
213                    leftAudibilityFactor = 0;
214                } else {
215                    // left and right are not soloed, and left is not muted
216                    leftAudibilityFactor = 1;
217                }
218            }
219        }
220
221        if (ap->mMuteMask & RIGHT_CHANNEL_MASK) {
222            // right muted
223            rightAudibilityFactor = 0;
224        } else {
225            // right not muted
226            if (ap->mSoloMask & RIGHT_CHANNEL_MASK) {
227                // right soloed
228                rightAudibilityFactor = 1;
229            } else {
230                // right not soloed
231                if (ap->mSoloMask & LEFT_CHANNEL_MASK) {
232                    // left solo silences right
233                    rightAudibilityFactor = 0;
234                } else {
235                    // left and right are not soloed, and right is not muted
236                    rightAudibilityFactor = 1;
237                }
238            }
239        }
240    }
241
242    // compute amplification as the combination of volume level and stereo position
243    //   amplification from volume level
244    ap->mAmplFromVolLevel = sles_to_android_amplification(ap->mVolume.mLevel);
245    //   amplification from direct level (changed in SLEffectSendtItf and SLAndroidEffectSendItf)
246    leftVol  *= ap->mAmplFromVolLevel * ap->mAmplFromDirectLevel;
247    rightVol *= ap->mAmplFromVolLevel * ap->mAmplFromDirectLevel;
248
249    // amplification from stereo position
250    if (ap->mVolume.mEnableStereoPosition) {
251        // panning law depends on number of channels of content: stereo panning vs 2ch. balance
252        if(1 == channelCount) {
253            // stereo panning
254            double theta = (1000+ap->mVolume.mStereoPosition)*M_PI_4/1000.0f; // 0 <= theta <= Pi/2
255            ap->mAmplFromStereoPos[0] = cos(theta);
256            ap->mAmplFromStereoPos[1] = sin(theta);
257        } else {
258            // stereo balance
259            if (ap->mVolume.mStereoPosition > 0) {
260                ap->mAmplFromStereoPos[0] = (1000-ap->mVolume.mStereoPosition)/1000.0f;
261                ap->mAmplFromStereoPos[1] = 1.0f;
262            } else {
263                ap->mAmplFromStereoPos[0] = 1.0f;
264                ap->mAmplFromStereoPos[1] = (1000+ap->mVolume.mStereoPosition)/1000.0f;
265            }
266        }
267        leftVol  *= ap->mAmplFromStereoPos[0];
268        rightVol *= ap->mAmplFromStereoPos[1];
269    }
270
271    ap->mAudioTrack->setVolume(leftVol * leftAudibilityFactor, rightVol * rightAudibilityFactor);
272
273    // changes in the AudioPlayer volume must be reflected in the send level:
274    //  in SLEffectSendItf or in SLAndroidEffectSendItf?
275    // FIXME replace interface test by an internal API once we have one.
276    if (NULL != ap->mEffectSend.mItf) {
277        for (unsigned int i=0 ; i<AUX_MAX ; i++) {
278            if (ap->mEffectSend.mEnableLevels[i].mEnable) {
279                android_fxSend_setSendLevel(ap,
280                        ap->mEffectSend.mEnableLevels[i].mSendLevel + ap->mVolume.mLevel);
281                // there's a single aux bus on Android, so we can stop looking once the first
282                // aux effect is found.
283                break;
284            }
285        }
286    } else if (NULL != ap->mAndroidEffectSend.mItf) {
287        android_fxSend_setSendLevel(ap, ap->mAndroidEffectSend.mSendLevel + ap->mVolume.mLevel);
288    }
289}
290
291//-----------------------------------------------------------------------------
292void audioTrack_handleMarker_lockPlay(CAudioPlayer* ap) {
293    //SL_LOGV("received event EVENT_MARKER from AudioTrack");
294    slPlayCallback callback = NULL;
295    void* callbackPContext = NULL;
296
297    interface_lock_shared(&ap->mPlay);
298    callback = ap->mPlay.mCallback;
299    callbackPContext = ap->mPlay.mContext;
300    interface_unlock_shared(&ap->mPlay);
301
302    if (NULL != callback) {
303        // getting this event implies SL_PLAYEVENT_HEADATMARKER was set in the event mask
304        (*callback)(&ap->mPlay.mItf, callbackPContext, SL_PLAYEVENT_HEADATMARKER);
305    }
306}
307
308//-----------------------------------------------------------------------------
309void audioTrack_handleNewPos_lockPlay(CAudioPlayer* ap) {
310    //SL_LOGV("received event EVENT_NEW_POS from AudioTrack");
311    slPlayCallback callback = NULL;
312    void* callbackPContext = NULL;
313
314    interface_lock_shared(&ap->mPlay);
315    callback = ap->mPlay.mCallback;
316    callbackPContext = ap->mPlay.mContext;
317    interface_unlock_shared(&ap->mPlay);
318
319    if (NULL != callback) {
320        // getting this event implies SL_PLAYEVENT_HEADATNEWPOS was set in the event mask
321        (*callback)(&ap->mPlay.mItf, callbackPContext, SL_PLAYEVENT_HEADATNEWPOS);
322    }
323}
324
325
326//-----------------------------------------------------------------------------
327void audioTrack_handleUnderrun_lockPlay(CAudioPlayer* ap) {
328    slPlayCallback callback = NULL;
329    void* callbackPContext = NULL;
330
331    interface_lock_shared(&ap->mPlay);
332    callback = ap->mPlay.mCallback;
333    callbackPContext = ap->mPlay.mContext;
334    bool headStalled = (ap->mPlay.mEventFlags & SL_PLAYEVENT_HEADSTALLED) != 0;
335    interface_unlock_shared(&ap->mPlay);
336
337    if ((NULL != callback) && headStalled) {
338        (*callback)(&ap->mPlay.mItf, callbackPContext, SL_PLAYEVENT_HEADSTALLED);
339    }
340}
341
342
343//-----------------------------------------------------------------------------
344/**
345 * post-condition: play state of AudioPlayer is SL_PLAYSTATE_PAUSED if setPlayStateToPaused is true
346 *
347 * note: a conditional flag, setPlayStateToPaused, is used here to specify whether the play state
348 *       needs to be changed when the player reaches the end of the content to play. This is
349 *       relative to what the specification describes for buffer queues vs the
350 *       SL_PLAYEVENT_HEADATEND event. In the OpenSL ES specification 1.0.1:
351 *        - section 8.12 SLBufferQueueItf states "In the case of starvation due to insufficient
352 *          buffers in the queue, the playing of audio data stops. The player remains in the
353 *          SL_PLAYSTATE_PLAYING state."
354 *        - section 9.2.31 SL_PLAYEVENT states "SL_PLAYEVENT_HEADATEND Playback head is at the end
355 *          of the current content and the player has paused."
356 */
357void audioPlayer_dispatch_headAtEnd_lockPlay(CAudioPlayer *ap, bool setPlayStateToPaused,
358        bool needToLock) {
359    //SL_LOGV("ap=%p, setPlayStateToPaused=%d, needToLock=%d", ap, setPlayStateToPaused,
360    //        needToLock);
361    slPlayCallback playCallback = NULL;
362    void * playContext = NULL;
363    // SLPlayItf callback or no callback?
364    if (needToLock) {
365        interface_lock_exclusive(&ap->mPlay);
366    }
367    if (ap->mPlay.mEventFlags & SL_PLAYEVENT_HEADATEND) {
368        playCallback = ap->mPlay.mCallback;
369        playContext = ap->mPlay.mContext;
370    }
371    if (setPlayStateToPaused) {
372        ap->mPlay.mState = SL_PLAYSTATE_PAUSED;
373    }
374    if (needToLock) {
375        interface_unlock_exclusive(&ap->mPlay);
376    }
377    // callback with no lock held
378    if (NULL != playCallback) {
379        (*playCallback)(&ap->mPlay.mItf, playContext, SL_PLAYEVENT_HEADATEND);
380    }
381
382}
383
384
385//-----------------------------------------------------------------------------
386/**
387 * pre-condition: AudioPlayer has SLPrefetchStatusItf initialized
388 * post-condition:
389 *  - ap->mPrefetchStatus.mStatus == status
390 *  - the prefetch status callback, if any, has been notified if a change occurred
391 *
392 */
393void audioPlayer_dispatch_prefetchStatus_lockPrefetch(CAudioPlayer *ap, SLuint32 status,
394        bool needToLock) {
395    slPrefetchCallback prefetchCallback = NULL;
396    void * prefetchContext = NULL;
397
398    if (needToLock) {
399        interface_lock_exclusive(&ap->mPrefetchStatus);
400    }
401    // status change?
402    if (ap->mPrefetchStatus.mStatus != status) {
403        ap->mPrefetchStatus.mStatus = status;
404        // callback or no callback?
405        if (ap->mPrefetchStatus.mCallbackEventsMask & SL_PREFETCHEVENT_STATUSCHANGE) {
406            prefetchCallback = ap->mPrefetchStatus.mCallback;
407            prefetchContext  = ap->mPrefetchStatus.mContext;
408        }
409    }
410    if (needToLock) {
411        interface_unlock_exclusive(&ap->mPrefetchStatus);
412    }
413
414    // callback with no lock held
415    if (NULL != prefetchCallback) {
416        (*prefetchCallback)(&ap->mPrefetchStatus.mItf, prefetchContext, status);
417    }
418}
419
420
421//-----------------------------------------------------------------------------
422SLresult audioPlayer_setStreamType(CAudioPlayer* ap, SLint32 type) {
423    SLresult result = SL_RESULT_SUCCESS;
424    SL_LOGV("type %d", type);
425
426    int newStreamType = ANDROID_DEFAULT_OUTPUT_STREAM_TYPE;
427    switch(type) {
428    case SL_ANDROID_STREAM_VOICE:
429        newStreamType = AUDIO_STREAM_VOICE_CALL;
430        break;
431    case SL_ANDROID_STREAM_SYSTEM:
432        newStreamType = AUDIO_STREAM_SYSTEM;
433        break;
434    case SL_ANDROID_STREAM_RING:
435        newStreamType = AUDIO_STREAM_RING;
436        break;
437    case SL_ANDROID_STREAM_MEDIA:
438        newStreamType = AUDIO_STREAM_MUSIC;
439        break;
440    case SL_ANDROID_STREAM_ALARM:
441        newStreamType = AUDIO_STREAM_ALARM;
442        break;
443    case SL_ANDROID_STREAM_NOTIFICATION:
444        newStreamType = AUDIO_STREAM_NOTIFICATION;
445        break;
446    default:
447        SL_LOGE(ERROR_PLAYERSTREAMTYPE_SET_UNKNOWN_TYPE);
448        result = SL_RESULT_PARAMETER_INVALID;
449        break;
450    }
451
452    // stream type needs to be set before the object is realized
453    // (ap->mAudioTrack is supposed to be NULL until then)
454    if (SL_OBJECT_STATE_UNREALIZED != ap->mObject.mState) {
455        SL_LOGE(ERROR_PLAYERSTREAMTYPE_REALIZED);
456        result = SL_RESULT_PRECONDITIONS_VIOLATED;
457    } else {
458        ap->mStreamType = newStreamType;
459    }
460
461    return result;
462}
463
464
465//-----------------------------------------------------------------------------
466SLresult audioPlayer_getStreamType(CAudioPlayer* ap, SLint32 *pType) {
467    SLresult result = SL_RESULT_SUCCESS;
468
469    switch(ap->mStreamType) {
470    case AUDIO_STREAM_VOICE_CALL:
471        *pType = SL_ANDROID_STREAM_VOICE;
472        break;
473    case AUDIO_STREAM_SYSTEM:
474        *pType = SL_ANDROID_STREAM_SYSTEM;
475        break;
476    case AUDIO_STREAM_RING:
477        *pType = SL_ANDROID_STREAM_RING;
478        break;
479    case AUDIO_STREAM_DEFAULT:
480    case AUDIO_STREAM_MUSIC:
481        *pType = SL_ANDROID_STREAM_MEDIA;
482        break;
483    case AUDIO_STREAM_ALARM:
484        *pType = SL_ANDROID_STREAM_ALARM;
485        break;
486    case AUDIO_STREAM_NOTIFICATION:
487        *pType = SL_ANDROID_STREAM_NOTIFICATION;
488        break;
489    default:
490        result = SL_RESULT_INTERNAL_ERROR;
491        *pType = SL_ANDROID_STREAM_MEDIA;
492        break;
493    }
494
495    return result;
496}
497
498
499//-----------------------------------------------------------------------------
500void audioPlayer_auxEffectUpdate(CAudioPlayer* ap) {
501    if ((NULL != ap->mAudioTrack) && (ap->mAuxEffect != 0)) {
502        android_fxSend_attach(ap, true, ap->mAuxEffect, ap->mVolume.mLevel + ap->mAuxSendLevel);
503    }
504}
505
506
507//-----------------------------------------------------------------------------
508void audioPlayer_setInvalid(CAudioPlayer* ap) {
509    ap->mAndroidObjType = INVALID_TYPE;
510    ap->mpLock = NULL;
511    ap->mPlaybackRate.mCapabilities = 0;
512}
513
514
515//-----------------------------------------------------------------------------
516/*
517 * returns true if the given data sink is supported by AudioPlayer that don't
518 *   play to an OutputMix object, false otherwise
519 *
520 * pre-condition: the locator of the audio sink is not SL_DATALOCATOR_OUTPUTMIX
521 */
522bool audioPlayer_isSupportedNonOutputMixSink(const SLDataSink* pAudioSink) {
523    bool result = true;
524    const SLuint32 sinkLocatorType = *(SLuint32 *)pAudioSink->pLocator;
525    const SLuint32 sinkFormatType = *(SLuint32 *)pAudioSink->pFormat;
526
527    switch (sinkLocatorType) {
528
529    case SL_DATALOCATOR_BUFFERQUEUE:
530    case SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE:
531        if (SL_DATAFORMAT_PCM != sinkFormatType) {
532            SL_LOGE("Unsupported sink format 0x%x, expected SL_DATAFORMAT_PCM",
533                    (unsigned)sinkFormatType);
534            result = false;
535        }
536        // it's no use checking the PCM format fields because additional characteristics
537        // such as the number of channels, or sample size are unknown to the player at this stage
538        break;
539
540    default:
541        SL_LOGE("Unsupported sink locator type 0x%x", (unsigned)sinkLocatorType);
542        result = false;
543        break;
544    }
545
546    return result;
547}
548
549
550//-----------------------------------------------------------------------------
551/*
552 * returns the Android object type if the locator type combinations for the source and sinks
553 *   are supported by this implementation, INVALID_TYPE otherwise
554 */
555AndroidObjectType audioPlayer_getAndroidObjectTypeForSourceSink(CAudioPlayer *ap) {
556
557    const SLDataSource *pAudioSrc = &ap->mDataSource.u.mSource;
558    const SLDataSink *pAudioSnk = &ap->mDataSink.u.mSink;
559    const SLuint32 sourceLocatorType = *(SLuint32 *)pAudioSrc->pLocator;
560    const SLuint32 sinkLocatorType = *(SLuint32 *)pAudioSnk->pLocator;
561    AndroidObjectType type = INVALID_TYPE;
562
563    //--------------------------------------
564    // Sink / source matching check:
565    // the following source / sink combinations are supported
566    //     SL_DATALOCATOR_BUFFERQUEUE                / SL_DATALOCATOR_OUTPUTMIX
567    //     SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE   / SL_DATALOCATOR_OUTPUTMIX
568    //     SL_DATALOCATOR_URI                        / SL_DATALOCATOR_OUTPUTMIX
569    //     SL_DATALOCATOR_ANDROIDFD                  / SL_DATALOCATOR_OUTPUTMIX
570    //     SL_DATALOCATOR_ANDROIDBUFFERQUEUE         / SL_DATALOCATOR_OUTPUTMIX
571    //     SL_DATALOCATOR_URI                        / SL_DATALOCATOR_BUFFERQUEUE
572    //     SL_DATALOCATOR_ANDROIDFD                  / SL_DATALOCATOR_BUFFERQUEUE
573    //     SL_DATALOCATOR_URI                        / SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE
574    //     SL_DATALOCATOR_ANDROIDFD                  / SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE
575    switch (sinkLocatorType) {
576
577    case SL_DATALOCATOR_OUTPUTMIX: {
578        switch (sourceLocatorType) {
579
580        //   Buffer Queue to AudioTrack
581        case SL_DATALOCATOR_BUFFERQUEUE:
582        case SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE:
583            type = AUDIOPLAYER_FROM_PCM_BUFFERQUEUE;
584            break;
585
586        //   URI or FD to MediaPlayer
587        case SL_DATALOCATOR_URI:
588        case SL_DATALOCATOR_ANDROIDFD:
589            type = AUDIOPLAYER_FROM_URIFD;
590            break;
591
592        //   Android BufferQueue to MediaPlayer (shared memory streaming)
593        case SL_DATALOCATOR_ANDROIDBUFFERQUEUE:
594            type = AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE;
595            break;
596
597        default:
598            SL_LOGE("Source data locator 0x%x not supported with SL_DATALOCATOR_OUTPUTMIX sink",
599                    (unsigned)sourceLocatorType);
600            break;
601        }
602        }
603        break;
604
605    case SL_DATALOCATOR_BUFFERQUEUE:
606    case SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE:
607        switch (sourceLocatorType) {
608
609        //   URI or FD decoded to PCM in a buffer queue
610        case SL_DATALOCATOR_URI:
611        case SL_DATALOCATOR_ANDROIDFD:
612            type = AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE;
613            break;
614
615        default:
616            SL_LOGE("Source data locator 0x%x not supported with SL_DATALOCATOR_BUFFERQUEUE sink",
617                    (unsigned)sourceLocatorType);
618            break;
619        }
620        break;
621
622    default:
623        SL_LOGE("Sink data locator 0x%x not supported", (unsigned)sinkLocatorType);
624        break;
625    }
626
627    return type;
628}
629
630
631//-----------------------------------------------------------------------------
632/*
633 * Callback associated with an SfPlayer of an SL ES AudioPlayer that gets its data
634 * from a URI or FD, for prepare and prefetch events
635 */
636static void sfplayer_handlePrefetchEvent(int event, int data1, int data2, void* user) {
637    if (NULL == user) {
638        return;
639    }
640
641    CAudioPlayer *ap = (CAudioPlayer *)user;
642    //SL_LOGV("received event %d, data %d from SfAudioPlayer", event, data1);
643    switch(event) {
644
645    case android::GenericPlayer::kEventPrepared: {
646
647        if (PLAYER_SUCCESS != data1) {
648            object_lock_exclusive(&ap->mObject);
649
650            ap->mAudioTrack = NULL;
651            ap->mNumChannels = 0;
652            ap->mSampleRateMilliHz = 0;
653            ap->mAndroidObjState = ANDROID_UNINITIALIZED;
654
655            object_unlock_exclusive(&ap->mObject);
656
657            // SfPlayer prepare() failed prefetching, there is no event in SLPrefetchStatus to
658            //  indicate a prefetch error, so we signal it by sending simulataneously two events:
659            //  - SL_PREFETCHEVENT_FILLLEVELCHANGE with a level of 0
660            //  - SL_PREFETCHEVENT_STATUSCHANGE with a status of SL_PREFETCHSTATUS_UNDERFLOW
661            SL_LOGE(ERROR_PLAYER_PREFETCH_d, data1);
662            if (!IsInterfaceInitialized(&(ap->mObject), MPH_PREFETCHSTATUS)) {
663                break;
664            }
665
666            slPrefetchCallback callback = NULL;
667            void* callbackPContext = NULL;
668
669            interface_lock_exclusive(&ap->mPrefetchStatus);
670            ap->mPrefetchStatus.mLevel = 0;
671            ap->mPrefetchStatus.mStatus = SL_PREFETCHSTATUS_UNDERFLOW;
672            if ((ap->mPrefetchStatus.mCallbackEventsMask & SL_PREFETCHEVENT_FILLLEVELCHANGE)
673                    && (ap->mPrefetchStatus.mCallbackEventsMask & SL_PREFETCHEVENT_STATUSCHANGE)) {
674                callback = ap->mPrefetchStatus.mCallback;
675                callbackPContext = ap->mPrefetchStatus.mContext;
676            }
677            interface_unlock_exclusive(&ap->mPrefetchStatus);
678
679            // callback with no lock held
680            if (NULL != callback) {
681                (*callback)(&ap->mPrefetchStatus.mItf, callbackPContext,
682                        SL_PREFETCHEVENT_FILLLEVELCHANGE | SL_PREFETCHEVENT_STATUSCHANGE);
683            }
684
685
686        } else {
687            object_lock_exclusive(&ap->mObject);
688
689            if (AUDIOPLAYER_FROM_URIFD == ap->mAndroidObjType) {
690                //**************************************
691                // FIXME move under GenericMediaPlayer
692#if 0
693                ap->mAudioTrack = ap->mSfPlayer->getAudioTrack();
694                ap->mNumChannels = ap->mSfPlayer->getNumChannels();
695                ap->mSampleRateMilliHz =
696                        android_to_sles_sampleRate(ap->mSfPlayer->getSampleRateHz());
697                ap->mSfPlayer->startPrefetch_async();
698                // update the new track with the current settings
699                audioPlayer_auxEffectUpdate(ap);
700                android_audioPlayer_useEventMask(ap);
701                android_audioPlayer_volumeUpdate(ap);
702                android_audioPlayer_setPlayRate(ap, ap->mPlaybackRate.mRate, false /*lockAP*/);
703#endif
704            } else if (AUDIOPLAYER_FROM_PCM_BUFFERQUEUE == ap->mAndroidObjType) {
705                ((android::AudioToCbRenderer*)ap->mAPlayer.get())->startPrefetch_async();
706            } else if (AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE == ap->mAndroidObjType) {
707                SL_LOGD("Received SfPlayer::kEventPrepared from AVPlayer for CAudioPlayer %p", ap);
708            }
709
710            ap->mAndroidObjState = ANDROID_READY;
711
712            object_unlock_exclusive(&ap->mObject);
713        }
714
715    }
716    break;
717
718    case android::GenericPlayer::kEventPrefetchFillLevelUpdate : {
719        if (!IsInterfaceInitialized(&(ap->mObject), MPH_PREFETCHSTATUS)) {
720            break;
721        }
722        slPrefetchCallback callback = NULL;
723        void* callbackPContext = NULL;
724
725        // SLPrefetchStatusItf callback or no callback?
726        interface_lock_exclusive(&ap->mPrefetchStatus);
727        if (ap->mPrefetchStatus.mCallbackEventsMask & SL_PREFETCHEVENT_FILLLEVELCHANGE) {
728            callback = ap->mPrefetchStatus.mCallback;
729            callbackPContext = ap->mPrefetchStatus.mContext;
730        }
731        ap->mPrefetchStatus.mLevel = (SLpermille)data1;
732        interface_unlock_exclusive(&ap->mPrefetchStatus);
733
734        // callback with no lock held
735        if (NULL != callback) {
736            (*callback)(&ap->mPrefetchStatus.mItf, callbackPContext,
737                    SL_PREFETCHEVENT_FILLLEVELCHANGE);
738        }
739    }
740    break;
741
742    case android::GenericPlayer::kEventPrefetchStatusChange: {
743        if (!IsInterfaceInitialized(&(ap->mObject), MPH_PREFETCHSTATUS)) {
744            break;
745        }
746        slPrefetchCallback callback = NULL;
747        void* callbackPContext = NULL;
748
749        // SLPrefetchStatusItf callback or no callback?
750        object_lock_exclusive(&ap->mObject);
751        if (ap->mPrefetchStatus.mCallbackEventsMask & SL_PREFETCHEVENT_STATUSCHANGE) {
752            callback = ap->mPrefetchStatus.mCallback;
753            callbackPContext = ap->mPrefetchStatus.mContext;
754        }
755        if (data1 >= android::kStatusIntermediate) {
756            ap->mPrefetchStatus.mStatus = SL_PREFETCHSTATUS_SUFFICIENTDATA;
757            ap->mAndroidObjState = ANDROID_READY;
758        } else if (data1 < android::kStatusIntermediate) {
759            ap->mPrefetchStatus.mStatus = SL_PREFETCHSTATUS_UNDERFLOW;
760        }
761        object_unlock_exclusive(&ap->mObject);
762
763        // callback with no lock held
764        if (NULL != callback) {
765            (*callback)(&ap->mPrefetchStatus.mItf, callbackPContext, SL_PREFETCHEVENT_STATUSCHANGE);
766        }
767        }
768        break;
769
770    case android::GenericPlayer::kEventEndOfStream: {
771        audioPlayer_dispatch_headAtEnd_lockPlay(ap, true /*set state to paused?*/, true);
772        if ((NULL != ap->mAudioTrack) && (!ap->mSeek.mLoopEnabled)) {
773            ap->mAudioTrack->stop();
774        }
775        }
776        break;
777
778    default:
779        break;
780    }
781}
782
783
784//-----------------------------------------------------------------------------
785SLresult android_audioPlayer_checkSourceSink(CAudioPlayer *pAudioPlayer)
786{
787    // verify that the locator types for the source / sink combination is supported
788    pAudioPlayer->mAndroidObjType = audioPlayer_getAndroidObjectTypeForSourceSink(pAudioPlayer);
789    if (INVALID_TYPE == pAudioPlayer->mAndroidObjType) {
790        return SL_RESULT_PARAMETER_INVALID;
791    }
792
793    const SLDataSource *pAudioSrc = &pAudioPlayer->mDataSource.u.mSource;
794    const SLDataSink *pAudioSnk = &pAudioPlayer->mDataSink.u.mSink;
795
796    // format check:
797    const SLuint32 sourceLocatorType = *(SLuint32 *)pAudioSrc->pLocator;
798    const SLuint32 sinkLocatorType = *(SLuint32 *)pAudioSnk->pLocator;
799    const SLuint32 sourceFormatType = *(SLuint32 *)pAudioSrc->pFormat;
800    const SLuint32 sinkFormatType = *(SLuint32 *)pAudioSnk->pFormat;
801
802    switch (sourceLocatorType) {
803    //------------------
804    //   Buffer Queues
805    case SL_DATALOCATOR_BUFFERQUEUE:
806    case SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE:
807        {
808        SLDataLocator_BufferQueue *dl_bq =  (SLDataLocator_BufferQueue *) pAudioSrc->pLocator;
809
810        // Buffer format
811        switch (sourceFormatType) {
812        //     currently only PCM buffer queues are supported,
813        case SL_DATAFORMAT_PCM: {
814            SLDataFormat_PCM *df_pcm = (SLDataFormat_PCM *) pAudioSrc->pFormat;
815            switch (df_pcm->numChannels) {
816            case 1:
817            case 2:
818                break;
819            default:
820                // this should have already been rejected by checkDataFormat
821                SL_LOGE("Cannot create audio player: unsupported " \
822                    "PCM data source with %u channels", (unsigned) df_pcm->numChannels);
823                return SL_RESULT_CONTENT_UNSUPPORTED;
824            }
825            switch (df_pcm->samplesPerSec) {
826            case SL_SAMPLINGRATE_8:
827            case SL_SAMPLINGRATE_11_025:
828            case SL_SAMPLINGRATE_12:
829            case SL_SAMPLINGRATE_16:
830            case SL_SAMPLINGRATE_22_05:
831            case SL_SAMPLINGRATE_24:
832            case SL_SAMPLINGRATE_32:
833            case SL_SAMPLINGRATE_44_1:
834            case SL_SAMPLINGRATE_48:
835                break;
836            case SL_SAMPLINGRATE_64:
837            case SL_SAMPLINGRATE_88_2:
838            case SL_SAMPLINGRATE_96:
839            case SL_SAMPLINGRATE_192:
840            default:
841                SL_LOGE("Cannot create audio player: unsupported sample rate %u milliHz",
842                    (unsigned) df_pcm->samplesPerSec);
843                return SL_RESULT_CONTENT_UNSUPPORTED;
844            }
845            switch (df_pcm->bitsPerSample) {
846            case SL_PCMSAMPLEFORMAT_FIXED_8:
847                // FIXME We should support this
848                //SL_LOGE("Cannot create audio player: unsupported 8-bit data");
849                //return SL_RESULT_CONTENT_UNSUPPORTED;
850            case SL_PCMSAMPLEFORMAT_FIXED_16:
851                break;
852                // others
853            default:
854                // this should have already been rejected by checkDataFormat
855                SL_LOGE("Cannot create audio player: unsupported sample bit depth %u",
856                        (SLuint32)df_pcm->bitsPerSample);
857                return SL_RESULT_CONTENT_UNSUPPORTED;
858            }
859            switch (df_pcm->containerSize) {
860            case 8:
861            case 16:
862                break;
863                // others
864            default:
865                SL_LOGE("Cannot create audio player: unsupported container size %u",
866                    (unsigned) df_pcm->containerSize);
867                return SL_RESULT_CONTENT_UNSUPPORTED;
868            }
869            switch (df_pcm->channelMask) {
870                // FIXME needs work
871            default:
872                break;
873            }
874            switch (df_pcm->endianness) {
875            case SL_BYTEORDER_LITTLEENDIAN:
876                break;
877            case SL_BYTEORDER_BIGENDIAN:
878                SL_LOGE("Cannot create audio player: unsupported big-endian byte order");
879                return SL_RESULT_CONTENT_UNSUPPORTED;
880                // native is proposed but not yet in spec
881            default:
882                SL_LOGE("Cannot create audio player: unsupported byte order %u",
883                    (unsigned) df_pcm->endianness);
884                return SL_RESULT_CONTENT_UNSUPPORTED;
885            }
886            } //case SL_DATAFORMAT_PCM
887            break;
888        case SL_DATAFORMAT_MIME:
889        case XA_DATAFORMAT_RAWIMAGE:
890            SL_LOGE("Cannot create audio player with buffer queue data source "
891                "without SL_DATAFORMAT_PCM format");
892            return SL_RESULT_CONTENT_UNSUPPORTED;
893        default:
894            // invalid data format is detected earlier
895            assert(false);
896            return SL_RESULT_INTERNAL_ERROR;
897        } // switch (sourceFormatType)
898        } // case SL_DATALOCATOR_BUFFERQUEUE or SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE
899        break;
900    //------------------
901    //   URI
902    case SL_DATALOCATOR_URI:
903        {
904        SLDataLocator_URI *dl_uri =  (SLDataLocator_URI *) pAudioSrc->pLocator;
905        if (NULL == dl_uri->URI) {
906            return SL_RESULT_PARAMETER_INVALID;
907        }
908        // URI format
909        switch (sourceFormatType) {
910        case SL_DATAFORMAT_MIME:
911            break;
912        case SL_DATAFORMAT_PCM:
913        case XA_DATAFORMAT_RAWIMAGE:
914            SL_LOGE("Cannot create audio player with SL_DATALOCATOR_URI data source without "
915                "SL_DATAFORMAT_MIME format");
916            return SL_RESULT_CONTENT_UNSUPPORTED;
917        } // switch (sourceFormatType)
918        // decoding format check
919        if ((sinkLocatorType != SL_DATALOCATOR_OUTPUTMIX) &&
920                !audioPlayer_isSupportedNonOutputMixSink(pAudioSnk)) {
921            return SL_RESULT_CONTENT_UNSUPPORTED;
922        }
923        } // case SL_DATALOCATOR_URI
924        break;
925    //------------------
926    //   File Descriptor
927    case SL_DATALOCATOR_ANDROIDFD:
928        {
929        // fd is already non null
930        switch (sourceFormatType) {
931        case SL_DATAFORMAT_MIME:
932            break;
933        case SL_DATAFORMAT_PCM:
934            // FIXME implement
935            SL_LOGD("[ FIXME implement PCM FD data sources ]");
936            break;
937        case XA_DATAFORMAT_RAWIMAGE:
938            SL_LOGE("Cannot create audio player with SL_DATALOCATOR_ANDROIDFD data source "
939                "without SL_DATAFORMAT_MIME or SL_DATAFORMAT_PCM format");
940            return SL_RESULT_CONTENT_UNSUPPORTED;
941        default:
942            // invalid data format is detected earlier
943            assert(false);
944            return SL_RESULT_INTERNAL_ERROR;
945        } // switch (sourceFormatType)
946        if ((sinkLocatorType != SL_DATALOCATOR_OUTPUTMIX) &&
947                !audioPlayer_isSupportedNonOutputMixSink(pAudioSnk)) {
948            return SL_RESULT_CONTENT_UNSUPPORTED;
949        }
950        } // case SL_DATALOCATOR_ANDROIDFD
951        break;
952    //------------------
953    //   Stream
954    case SL_DATALOCATOR_ANDROIDBUFFERQUEUE:
955    {
956        switch (sourceFormatType) {
957        case SL_DATAFORMAT_MIME:
958        {
959            SLDataFormat_MIME *df_mime = (SLDataFormat_MIME *) pAudioSrc->pFormat;
960            if (SL_CONTAINERTYPE_MPEG_TS != df_mime->containerType) {
961                SL_LOGE("Cannot create player with SL_DATALOCATOR_ANDROIDBUFFERQUEUE data source "
962                        "that is not fed MPEG-2 TS data");
963                return SL_RESULT_CONTENT_UNSUPPORTED;
964            }
965        }
966        break;
967        default:
968            SL_LOGE("Cannot create player with SL_DATALOCATOR_ANDROIDBUFFERQUEUE data source "
969                    "without SL_DATAFORMAT_MIME format");
970            return SL_RESULT_CONTENT_UNSUPPORTED;
971        }
972    }
973    break; // case SL_DATALOCATOR_ANDROIDBUFFERQUEUE
974    //------------------
975    //   Address
976    case SL_DATALOCATOR_ADDRESS:
977    case SL_DATALOCATOR_IODEVICE:
978    case SL_DATALOCATOR_OUTPUTMIX:
979    case XA_DATALOCATOR_NATIVEDISPLAY:
980    case SL_DATALOCATOR_MIDIBUFFERQUEUE:
981        SL_LOGE("Cannot create audio player with data locator type 0x%x",
982                (unsigned) sourceLocatorType);
983        return SL_RESULT_CONTENT_UNSUPPORTED;
984    default:
985        SL_LOGE("Cannot create audio player with invalid data locator type 0x%x",
986                (unsigned) sourceLocatorType);
987        return SL_RESULT_PARAMETER_INVALID;
988    }// switch (locatorType)
989
990    return SL_RESULT_SUCCESS;
991}
992
993
994
995//-----------------------------------------------------------------------------
996static void audioTrack_callBack_uri(int event, void* user, void *info) {
997    // EVENT_MORE_DATA needs to be handled with priority over the other events
998    // because it will be called the most often during playback
999
1000    if (event == android::AudioTrack::EVENT_MORE_DATA) {
1001        //SL_LOGV("received event EVENT_MORE_DATA from AudioTrack");
1002        // set size to 0 to signal we're not using the callback to write more data
1003        android::AudioTrack::Buffer* pBuff = (android::AudioTrack::Buffer*)info;
1004        pBuff->size = 0;
1005    } else if (NULL != user) {
1006        CAudioPlayer *ap = (CAudioPlayer *)user;
1007        if (!ap->mAudioTrackProtector->enterCb()) {
1008            // it is not safe to enter the callback (the track is about to go away)
1009            return;
1010        }
1011        switch (event) {
1012            case android::AudioTrack::EVENT_MARKER :
1013                audioTrack_handleMarker_lockPlay(ap);
1014                break;
1015            case android::AudioTrack::EVENT_NEW_POS :
1016                audioTrack_handleNewPos_lockPlay(ap);
1017                break;
1018            case android::AudioTrack::EVENT_UNDERRUN :
1019                audioTrack_handleUnderrun_lockPlay(ap);
1020                break;
1021            case android::AudioTrack::EVENT_BUFFER_END :
1022            case android::AudioTrack::EVENT_LOOP_END :
1023                break;
1024            default:
1025                SL_LOGE("Encountered unknown AudioTrack event %d for CAudioPlayer %p", event,
1026                        ap);
1027                break;
1028        }
1029        ap->mAudioTrackProtector->exitCb();
1030    }
1031}
1032
1033//-----------------------------------------------------------------------------
1034// Callback associated with an AudioTrack of an SL ES AudioPlayer that gets its data
1035// from a buffer queue. This will not be called once the AudioTrack has been destroyed.
1036static void audioTrack_callBack_pullFromBuffQueue(int event, void* user, void *info) {
1037    CAudioPlayer *ap = (CAudioPlayer *)user;
1038
1039    if (!ap->mAudioTrackProtector->enterCb()) {
1040        // it is not safe to enter the callback (the track is about to go away)
1041        return;
1042    }
1043
1044    void * callbackPContext = NULL;
1045    switch(event) {
1046
1047    case android::AudioTrack::EVENT_MORE_DATA: {
1048        //SL_LOGV("received event EVENT_MORE_DATA from AudioTrack TID=%d", gettid());
1049        slBufferQueueCallback callback = NULL;
1050        android::AudioTrack::Buffer* pBuff = (android::AudioTrack::Buffer*)info;
1051
1052        // retrieve data from the buffer queue
1053        interface_lock_exclusive(&ap->mBufferQueue);
1054
1055        if (ap->mBufferQueue.mState.count != 0) {
1056            //SL_LOGV("nbBuffers in queue = %u",ap->mBufferQueue.mState.count);
1057            assert(ap->mBufferQueue.mFront != ap->mBufferQueue.mRear);
1058
1059            BufferHeader *oldFront = ap->mBufferQueue.mFront;
1060            BufferHeader *newFront = &oldFront[1];
1061
1062            // FIXME handle 8bit based on buffer format
1063            short *pSrc = (short*)((char *)oldFront->mBuffer
1064                    + ap->mBufferQueue.mSizeConsumed);
1065            if (ap->mBufferQueue.mSizeConsumed + pBuff->size < oldFront->mSize) {
1066                // can't consume the whole or rest of the buffer in one shot
1067                ap->mBufferQueue.mSizeConsumed += pBuff->size;
1068                // leave pBuff->size untouched
1069                // consume data
1070                // FIXME can we avoid holding the lock during the copy?
1071                memcpy (pBuff->i16, pSrc, pBuff->size);
1072            } else {
1073                // finish consuming the buffer or consume the buffer in one shot
1074                pBuff->size = oldFront->mSize - ap->mBufferQueue.mSizeConsumed;
1075                ap->mBufferQueue.mSizeConsumed = 0;
1076
1077                if (newFront ==
1078                        &ap->mBufferQueue.mArray
1079                            [ap->mBufferQueue.mNumBuffers + 1])
1080                {
1081                    newFront = ap->mBufferQueue.mArray;
1082                }
1083                ap->mBufferQueue.mFront = newFront;
1084
1085                ap->mBufferQueue.mState.count--;
1086                ap->mBufferQueue.mState.playIndex++;
1087
1088                // consume data
1089                // FIXME can we avoid holding the lock during the copy?
1090                memcpy (pBuff->i16, pSrc, pBuff->size);
1091
1092                // data has been consumed, and the buffer queue state has been updated
1093                // we will notify the client if applicable
1094                callback = ap->mBufferQueue.mCallback;
1095                // save callback data
1096                callbackPContext = ap->mBufferQueue.mContext;
1097            }
1098        } else { // empty queue
1099            // signal no data available
1100            pBuff->size = 0;
1101
1102            // signal we're at the end of the content, but don't pause (see note in function)
1103            audioPlayer_dispatch_headAtEnd_lockPlay(ap, false /*set state to paused?*/, false);
1104
1105            // signal underflow to prefetch status itf
1106            if (IsInterfaceInitialized(&(ap->mObject), MPH_PREFETCHSTATUS)) {
1107                audioPlayer_dispatch_prefetchStatus_lockPrefetch(ap, SL_PREFETCHSTATUS_UNDERFLOW,
1108                    false);
1109            }
1110
1111            // stop the track so it restarts playing faster when new data is enqueued
1112            ap->mAudioTrack->stop();
1113        }
1114        interface_unlock_exclusive(&ap->mBufferQueue);
1115
1116        // notify client
1117        if (NULL != callback) {
1118            (*callback)(&ap->mBufferQueue.mItf, callbackPContext);
1119        }
1120    }
1121    break;
1122
1123    case android::AudioTrack::EVENT_MARKER:
1124        //SL_LOGI("received event EVENT_MARKER from AudioTrack");
1125        audioTrack_handleMarker_lockPlay(ap);
1126        break;
1127
1128    case android::AudioTrack::EVENT_NEW_POS:
1129        //SL_LOGI("received event EVENT_NEW_POS from AudioTrack");
1130        audioTrack_handleNewPos_lockPlay(ap);
1131        break;
1132
1133    case android::AudioTrack::EVENT_UNDERRUN:
1134        //SL_LOGI("received event EVENT_UNDERRUN from AudioTrack");
1135        audioTrack_handleUnderrun_lockPlay(ap);
1136        break;
1137
1138    default:
1139        // FIXME where does the notification of SL_PLAYEVENT_HEADMOVING fit?
1140        SL_LOGE("Encountered unknown AudioTrack event %d for CAudioPlayer %p", event,
1141                (CAudioPlayer *)user);
1142        break;
1143    }
1144
1145    ap->mAudioTrackProtector->exitCb();
1146}
1147
1148
1149//-----------------------------------------------------------------------------
1150SLresult android_audioPlayer_create(CAudioPlayer *pAudioPlayer) {
1151
1152    SLresult result = SL_RESULT_SUCCESS;
1153    // pAudioPlayer->mAndroidObjType has been set in audioPlayer_getAndroidObjectTypeForSourceSink()
1154    if (INVALID_TYPE == pAudioPlayer->mAndroidObjType) {
1155        audioPlayer_setInvalid(pAudioPlayer);
1156        result = SL_RESULT_PARAMETER_INVALID;
1157    } else {
1158
1159        pAudioPlayer->mpLock = new android::Mutex();
1160        pAudioPlayer->mAndroidObjState = ANDROID_UNINITIALIZED;
1161        pAudioPlayer->mStreamType = ANDROID_DEFAULT_OUTPUT_STREAM_TYPE;
1162        pAudioPlayer->mAudioTrack = NULL;
1163
1164        pAudioPlayer->mAudioTrackProtector = new android::AudioTrackProtector();
1165
1166        pAudioPlayer->mSessionId = android::AudioSystem::newAudioSessionId();
1167
1168        pAudioPlayer->mAmplFromVolLevel = 1.0f;
1169        pAudioPlayer->mAmplFromStereoPos[0] = 1.0f;
1170        pAudioPlayer->mAmplFromStereoPos[1] = 1.0f;
1171        pAudioPlayer->mDirectLevel = 0; // no attenuation
1172        pAudioPlayer->mAmplFromDirectLevel = 1.0f; // matches initial mDirectLevel value
1173        pAudioPlayer->mAuxSendLevel = 0;
1174
1175        // initialize interface-specific fields that can be used regardless of whether the
1176        // interface is exposed on the AudioPlayer or not
1177        // (empty section, as all initializations are the same as the defaults)
1178    }
1179
1180    return result;
1181}
1182
1183
1184//-----------------------------------------------------------------------------
1185SLresult android_audioPlayer_setConfig(CAudioPlayer *ap, const SLchar *configKey,
1186        const void *pConfigValue, SLuint32 valueSize) {
1187
1188    SLresult result = SL_RESULT_SUCCESS;
1189
1190    if (NULL == ap) {
1191        result = SL_RESULT_INTERNAL_ERROR;
1192    } else if (NULL == pConfigValue) {
1193        SL_LOGE(ERROR_CONFIG_NULL_PARAM);
1194        result = SL_RESULT_PARAMETER_INVALID;
1195
1196    } else if(strcmp((const char*)configKey, (const char*)SL_ANDROID_KEY_STREAM_TYPE) == 0) {
1197
1198        // stream type
1199        if (KEY_STREAM_TYPE_PARAMSIZE > valueSize) {
1200            SL_LOGE(ERROR_CONFIG_VALUESIZE_TOO_LOW);
1201            result = SL_RESULT_PARAMETER_INVALID;
1202        } else {
1203            result = audioPlayer_setStreamType(ap, *(SLuint32*)pConfigValue);
1204        }
1205
1206    } else {
1207        SL_LOGE(ERROR_CONFIG_UNKNOWN_KEY);
1208        result = SL_RESULT_PARAMETER_INVALID;
1209    }
1210
1211    return result;
1212}
1213
1214
1215//-----------------------------------------------------------------------------
1216SLresult android_audioPlayer_getConfig(CAudioPlayer* ap, const SLchar *configKey,
1217        SLuint32* pValueSize, void *pConfigValue) {
1218
1219    SLresult result = SL_RESULT_SUCCESS;
1220
1221    if (NULL == ap) {
1222        return SL_RESULT_INTERNAL_ERROR;
1223    } else if (NULL == pValueSize) {
1224        SL_LOGE(ERROR_CONFIG_NULL_PARAM);
1225        result = SL_RESULT_PARAMETER_INVALID;
1226
1227    } else if(strcmp((const char*)configKey, (const char*)SL_ANDROID_KEY_STREAM_TYPE) == 0) {
1228
1229        // stream type
1230        if (KEY_STREAM_TYPE_PARAMSIZE > *pValueSize) {
1231            SL_LOGE(ERROR_CONFIG_VALUESIZE_TOO_LOW);
1232            result = SL_RESULT_PARAMETER_INVALID;
1233        } else {
1234            *pValueSize = KEY_STREAM_TYPE_PARAMSIZE;
1235            if (NULL != pConfigValue) {
1236                result = audioPlayer_getStreamType(ap, (SLint32*)pConfigValue);
1237            }
1238        }
1239
1240    } else {
1241        SL_LOGE(ERROR_CONFIG_UNKNOWN_KEY);
1242        result = SL_RESULT_PARAMETER_INVALID;
1243    }
1244
1245    return result;
1246}
1247
1248
1249//-----------------------------------------------------------------------------
1250SLresult android_audioPlayer_realize(CAudioPlayer *pAudioPlayer, SLboolean async) {
1251
1252    SLresult result = SL_RESULT_SUCCESS;
1253    SL_LOGV("Realize pAudioPlayer=%p", pAudioPlayer);
1254
1255    switch (pAudioPlayer->mAndroidObjType) {
1256    //-----------------------------------
1257    // AudioTrack
1258    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
1259        {
1260        // initialize platform-specific CAudioPlayer fields
1261
1262        SLDataLocator_BufferQueue *dl_bq =  (SLDataLocator_BufferQueue *)
1263                pAudioPlayer->mDynamicSource.mDataSource;
1264        SLDataFormat_PCM *df_pcm = (SLDataFormat_PCM *)
1265                pAudioPlayer->mDynamicSource.mDataSource->pFormat;
1266
1267        uint32_t sampleRate = sles_to_android_sampleRate(df_pcm->samplesPerSec);
1268
1269        pAudioPlayer->mAudioTrack = new android::AudioTrack(
1270                pAudioPlayer->mStreamType,                           // streamType
1271                sampleRate,                                          // sampleRate
1272                sles_to_android_sampleFormat(df_pcm->bitsPerSample), // format
1273                sles_to_android_channelMaskOut(df_pcm->numChannels, df_pcm->channelMask),
1274                                                                     //channel mask
1275                0,                                                   // frameCount (here min)
1276                0,                                                   // flags
1277                audioTrack_callBack_pullFromBuffQueue,               // callback
1278                (void *) pAudioPlayer,                               // user
1279                0      // FIXME find appropriate frame count         // notificationFrame
1280                , pAudioPlayer->mSessionId
1281                );
1282        android::status_t status = pAudioPlayer->mAudioTrack->initCheck();
1283        if (status != android::NO_ERROR) {
1284            SL_LOGE("AudioTrack::initCheck status %u", status);
1285            result = SL_RESULT_CONTENT_UNSUPPORTED;
1286        }
1287
1288        // initialize platform-independent CAudioPlayer fields
1289
1290        pAudioPlayer->mNumChannels = df_pcm->numChannels;
1291        pAudioPlayer->mSampleRateMilliHz = df_pcm->samplesPerSec; // Note: bad field name in SL ES
1292
1293        pAudioPlayer->mAndroidObjState = ANDROID_READY;
1294        }
1295        break;
1296    //-----------------------------------
1297    // MediaPlayer
1298    case AUDIOPLAYER_FROM_URIFD: {
1299        object_lock_exclusive(&pAudioPlayer->mObject);
1300
1301        pAudioPlayer->mAndroidObjState = ANDROID_UNINITIALIZED;
1302        pAudioPlayer->mNumChannels = 0;
1303        pAudioPlayer->mSampleRateMilliHz = 0;
1304        pAudioPlayer->mAudioTrack = NULL;
1305
1306        AudioPlayback_Parameters app;
1307        app.sessionId = pAudioPlayer->mSessionId;
1308        app.streamType = pAudioPlayer->mStreamType;
1309        app.trackcb = audioTrack_callBack_uri;
1310        app.trackcbUser = (void *) pAudioPlayer;
1311
1312        pAudioPlayer->mAPlayer = new android::LocAVPlayer(&app, false /*hasVideo*/);
1313        pAudioPlayer->mAPlayer->init(sfplayer_handlePrefetchEvent,
1314                        (void*)pAudioPlayer /*notifUSer*/);
1315
1316        object_unlock_exclusive(&pAudioPlayer->mObject);
1317
1318        switch (pAudioPlayer->mDataSource.mLocator.mLocatorType) {
1319            case SL_DATALOCATOR_URI:
1320                pAudioPlayer->mAPlayer->setDataSource(
1321                        (const char*)pAudioPlayer->mDataSource.mLocator.mURI.URI);
1322                break;
1323            case SL_DATALOCATOR_ANDROIDFD: {
1324                int64_t offset = (int64_t)pAudioPlayer->mDataSource.mLocator.mFD.offset;
1325                pAudioPlayer->mAPlayer->setDataSource(
1326                        (int)pAudioPlayer->mDataSource.mLocator.mFD.fd,
1327                        offset == SL_DATALOCATOR_ANDROIDFD_USE_FILE_SIZE ?
1328                                (int64_t)PLAYER_FD_FIND_FILE_SIZE : offset,
1329                        (int64_t)pAudioPlayer->mDataSource.mLocator.mFD.length);
1330                }
1331                break;
1332            default:
1333                SL_LOGE(ERROR_PLAYERREALIZE_UNKNOWN_DATASOURCE_LOCATOR);
1334                break;
1335        }
1336
1337        }
1338        break;
1339    //-----------------------------------
1340    // StreamPlayer
1341    case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE: {
1342        object_lock_exclusive(&pAudioPlayer->mObject);
1343
1344        android_StreamPlayer_realize_l(pAudioPlayer, sfplayer_handlePrefetchEvent,
1345                (void*)pAudioPlayer);
1346
1347        object_unlock_exclusive(&pAudioPlayer->mObject);
1348        }
1349        break;
1350    //-----------------------------------
1351    // AudioToCbRenderer
1352    case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE: {
1353        object_lock_exclusive(&pAudioPlayer->mObject);
1354
1355        AudioPlayback_Parameters app;
1356        app.sessionId = pAudioPlayer->mSessionId;
1357        app.streamType = pAudioPlayer->mStreamType;
1358
1359        android::AudioToCbRenderer* decoder = new android::AudioToCbRenderer(&app);
1360        pAudioPlayer->mAPlayer = decoder;
1361        decoder->setDataPushListener(adecoder_writeToBufferQueue, (void*)pAudioPlayer);
1362        decoder->init(sfplayer_handlePrefetchEvent, (void*)pAudioPlayer);
1363
1364        switch (pAudioPlayer->mDataSource.mLocator.mLocatorType) {
1365        case SL_DATALOCATOR_URI:
1366            decoder->setDataSource(
1367                    (const char*)pAudioPlayer->mDataSource.mLocator.mURI.URI);
1368            break;
1369        case SL_DATALOCATOR_ANDROIDFD: {
1370            int64_t offset = (int64_t)pAudioPlayer->mDataSource.mLocator.mFD.offset;
1371            decoder->setDataSource(
1372                    (int)pAudioPlayer->mDataSource.mLocator.mFD.fd,
1373                    offset == SL_DATALOCATOR_ANDROIDFD_USE_FILE_SIZE ?
1374                            (int64_t)PLAYER_FD_FIND_FILE_SIZE : offset,
1375                            (int64_t)pAudioPlayer->mDataSource.mLocator.mFD.length);
1376            }
1377            break;
1378        default:
1379            SL_LOGE(ERROR_PLAYERREALIZE_UNKNOWN_DATASOURCE_LOCATOR);
1380            break;
1381        }
1382
1383        object_unlock_exclusive(&pAudioPlayer->mObject);
1384        }
1385        break;
1386    //-----------------------------------
1387    default:
1388        SL_LOGE(ERROR_PLAYERREALIZE_UNEXPECTED_OBJECT_TYPE_D, pAudioPlayer->mAndroidObjType);
1389        result = SL_RESULT_INTERNAL_ERROR;
1390        break;
1391    }
1392
1393
1394    // proceed with effect initialization
1395    // initialize EQ
1396    // FIXME use a table of effect descriptors when adding support for more effects
1397    if (memcmp(SL_IID_EQUALIZER, &pAudioPlayer->mEqualizer.mEqDescriptor.type,
1398            sizeof(effect_uuid_t)) == 0) {
1399        SL_LOGV("Need to initialize EQ for AudioPlayer=%p", pAudioPlayer);
1400        android_eq_init(pAudioPlayer->mSessionId, &pAudioPlayer->mEqualizer);
1401    }
1402    // initialize BassBoost
1403    if (memcmp(SL_IID_BASSBOOST, &pAudioPlayer->mBassBoost.mBassBoostDescriptor.type,
1404            sizeof(effect_uuid_t)) == 0) {
1405        SL_LOGV("Need to initialize BassBoost for AudioPlayer=%p", pAudioPlayer);
1406        android_bb_init(pAudioPlayer->mSessionId, &pAudioPlayer->mBassBoost);
1407    }
1408    // initialize Virtualizer
1409    if (memcmp(SL_IID_VIRTUALIZER, &pAudioPlayer->mVirtualizer.mVirtualizerDescriptor.type,
1410               sizeof(effect_uuid_t)) == 0) {
1411        SL_LOGV("Need to initialize Virtualizer for AudioPlayer=%p", pAudioPlayer);
1412        android_virt_init(pAudioPlayer->mSessionId, &pAudioPlayer->mVirtualizer);
1413    }
1414
1415    // initialize EffectSend
1416    // FIXME initialize EffectSend
1417
1418    return result;
1419}
1420
1421
1422//-----------------------------------------------------------------------------
1423/**
1424 * Called with a lock on AudioPlayer
1425 */
1426SLresult android_audioPlayer_preDestroy(CAudioPlayer *pAudioPlayer) {
1427    SLresult result = SL_RESULT_SUCCESS;
1428
1429    object_unlock_exclusive(&pAudioPlayer->mObject);
1430    if (pAudioPlayer->mAudioTrackProtector != 0) {
1431        pAudioPlayer->mAudioTrackProtector->requestCbExitAndWait();
1432    }
1433    object_lock_exclusive(&pAudioPlayer->mObject);
1434
1435    return result;
1436}
1437
1438
1439//-----------------------------------------------------------------------------
1440SLresult android_audioPlayer_destroy(CAudioPlayer *pAudioPlayer) {
1441    SLresult result = SL_RESULT_SUCCESS;
1442    SL_LOGV("android_audioPlayer_destroy(%p)", pAudioPlayer);
1443    switch (pAudioPlayer->mAndroidObjType) {
1444
1445    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
1446        // We own the audio track for PCM buffer queue players
1447        if (pAudioPlayer->mAudioTrack != NULL) {
1448            pAudioPlayer->mAudioTrack->stop();
1449            delete pAudioPlayer->mAudioTrack;
1450            pAudioPlayer->mAudioTrack = NULL;
1451        }
1452        break;
1453
1454    case AUDIOPLAYER_FROM_URIFD:     // intended fall-through
1455    case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:    // intended fall-through
1456    case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1457        pAudioPlayer->mAPlayer.clear();
1458        break;
1459    //-----------------------------------
1460    default:
1461        SL_LOGE(ERROR_PLAYERDESTROY_UNEXPECTED_OBJECT_TYPE_D, pAudioPlayer->mAndroidObjType);
1462        result = SL_RESULT_INTERNAL_ERROR;
1463        break;
1464    }
1465
1466    pAudioPlayer->mAudioTrackProtector.clear();
1467
1468    // FIXME might not be needed
1469    pAudioPlayer->mAndroidObjType = INVALID_TYPE;
1470
1471    // explicit destructor
1472    pAudioPlayer->mAudioTrackProtector.~sp();
1473    pAudioPlayer->mAuxEffect.~sp();
1474    pAudioPlayer->mAPlayer.~sp();
1475
1476    if (pAudioPlayer->mpLock != NULL) {
1477        delete pAudioPlayer->mpLock;
1478        pAudioPlayer->mpLock = NULL;
1479    }
1480
1481    return result;
1482}
1483
1484
1485//-----------------------------------------------------------------------------
1486SLresult android_audioPlayer_setPlayRate(CAudioPlayer *ap, SLpermille rate, bool lockAP) {
1487    SLresult result = SL_RESULT_SUCCESS;
1488    uint32_t contentRate = 0;
1489    switch(ap->mAndroidObjType) {
1490    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
1491    case AUDIOPLAYER_FROM_URIFD: {
1492        // get the content sample rate
1493        if (lockAP) { object_lock_shared(&ap->mObject); }
1494        uint32_t contentRate = sles_to_android_sampleRate(ap->mSampleRateMilliHz);
1495        if (lockAP) { object_unlock_shared(&ap->mObject); }
1496        // apply the SL ES playback rate on the AudioTrack as a factor of its content sample rate
1497        if (ap->mAudioTrack != NULL) {
1498            ap->mAudioTrack->setSampleRate(contentRate * (rate/1000.0f));
1499        }
1500        }
1501        break;
1502
1503    default:
1504        SL_LOGE("Unexpected object type %d", ap->mAndroidObjType);
1505        result = SL_RESULT_INTERNAL_ERROR;
1506        break;
1507    }
1508    return result;
1509}
1510
1511
1512//-----------------------------------------------------------------------------
1513// called with no lock held
1514SLresult android_audioPlayer_setPlaybackRateBehavior(CAudioPlayer *ap,
1515        SLuint32 constraints) {
1516    SLresult result = SL_RESULT_SUCCESS;
1517    switch(ap->mAndroidObjType) {
1518    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
1519    case AUDIOPLAYER_FROM_URIFD:
1520        if (constraints != (constraints & SL_RATEPROP_NOPITCHCORAUDIO)) {
1521            result = SL_RESULT_FEATURE_UNSUPPORTED;
1522        }
1523        break;
1524    default:
1525        SL_LOGE("Unexpected object type %d", ap->mAndroidObjType);
1526        result = SL_RESULT_INTERNAL_ERROR;
1527        break;
1528    }
1529    return result;
1530}
1531
1532
1533//-----------------------------------------------------------------------------
1534// called with no lock held
1535SLresult android_audioPlayer_getCapabilitiesOfRate(CAudioPlayer *ap,
1536        SLuint32 *pCapabilities) {
1537    switch(ap->mAndroidObjType) {
1538    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
1539    case AUDIOPLAYER_FROM_URIFD:
1540        *pCapabilities = SL_RATEPROP_NOPITCHCORAUDIO;
1541        break;
1542    default:
1543        *pCapabilities = 0;
1544        break;
1545    }
1546    return SL_RESULT_SUCCESS;
1547}
1548
1549
1550//-----------------------------------------------------------------------------
1551// precondition
1552//  called with no lock held
1553//  ap != NULL
1554//  pItemCount != NULL
1555SLresult android_audioPlayer_metadata_getItemCount(CAudioPlayer *ap, SLuint32 *pItemCount) {
1556    if (ap->mAPlayer == 0) {
1557        return SL_RESULT_PARAMETER_INVALID;
1558    }
1559    switch(ap->mAndroidObjType) {
1560      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1561        {
1562            android::AudioSfDecoder* decoder =
1563                    static_cast<android::AudioSfDecoder*>(ap->mAPlayer.get());
1564            *pItemCount = decoder->getPcmFormatKeyCount();
1565        }
1566        break;
1567      default:
1568        *pItemCount = 0;
1569        break;
1570    }
1571    return SL_RESULT_SUCCESS;
1572}
1573
1574
1575//-----------------------------------------------------------------------------
1576// precondition
1577//  called with no lock held
1578//  ap != NULL
1579//  pKeySize != NULL
1580SLresult android_audioPlayer_metadata_getKeySize(CAudioPlayer *ap,
1581        SLuint32 index, SLuint32 *pKeySize) {
1582    if (ap->mAPlayer == 0) {
1583        return SL_RESULT_PARAMETER_INVALID;
1584    }
1585    SLresult res = SL_RESULT_SUCCESS;
1586    switch(ap->mAndroidObjType) {
1587      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1588        {
1589            android::AudioSfDecoder* decoder =
1590                    static_cast<android::AudioSfDecoder*>(ap->mAPlayer.get());
1591            SLuint32 keyNameSize = 0;
1592            if (!decoder->getPcmFormatKeySize(index, &keyNameSize)) {
1593                res = SL_RESULT_PARAMETER_INVALID;
1594            } else {
1595                // *pKeySize is the size of the region used to store the key name AND
1596                //   the information about the key (size, lang, encoding)
1597                *pKeySize = keyNameSize + sizeof(SLMetadataInfo);
1598            }
1599        }
1600        break;
1601      default:
1602        *pKeySize = 0;
1603        res = SL_RESULT_PARAMETER_INVALID;
1604        break;
1605    }
1606    return res;
1607}
1608
1609
1610//-----------------------------------------------------------------------------
1611// precondition
1612//  called with no lock held
1613//  ap != NULL
1614//  pKey != NULL
1615SLresult android_audioPlayer_metadata_getKey(CAudioPlayer *ap,
1616        SLuint32 index, SLuint32 size, SLMetadataInfo *pKey) {
1617    if (ap->mAPlayer == 0) {
1618        return SL_RESULT_PARAMETER_INVALID;
1619    }
1620    SLresult res = SL_RESULT_SUCCESS;
1621    switch(ap->mAndroidObjType) {
1622      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1623        {
1624            android::AudioSfDecoder* decoder =
1625                    static_cast<android::AudioSfDecoder*>(ap->mAPlayer.get());
1626            if ((size < sizeof(SLMetadataInfo) ||
1627                    (!decoder->getPcmFormatKeyName(index, size - sizeof(SLMetadataInfo),
1628                            (char*)pKey->data)))) {
1629                res = SL_RESULT_PARAMETER_INVALID;
1630            } else {
1631                // successfully retrieved the key value, update the other fields
1632                pKey->encoding = SL_CHARACTERENCODING_UTF8;
1633                memcpy((char *) pKey->langCountry, "en", 3);
1634                pKey->size = strlen((char*)pKey->data) + 1;
1635            }
1636        }
1637        break;
1638      default:
1639        res = SL_RESULT_PARAMETER_INVALID;
1640        break;
1641    }
1642    return res;
1643}
1644
1645
1646//-----------------------------------------------------------------------------
1647// precondition
1648//  called with no lock held
1649//  ap != NULL
1650//  pValueSize != NULL
1651SLresult android_audioPlayer_metadata_getValueSize(CAudioPlayer *ap,
1652        SLuint32 index, SLuint32 *pValueSize) {
1653    if (ap->mAPlayer == 0) {
1654        return SL_RESULT_PARAMETER_INVALID;
1655    }
1656    SLresult res = SL_RESULT_SUCCESS;
1657    switch(ap->mAndroidObjType) {
1658      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1659        {
1660            android::AudioSfDecoder* decoder =
1661                    static_cast<android::AudioSfDecoder*>(ap->mAPlayer.get());
1662            SLuint32 valueSize = 0;
1663            if (!decoder->getPcmFormatValueSize(index, &valueSize)) {
1664                res = SL_RESULT_PARAMETER_INVALID;
1665            } else {
1666                // *pValueSize is the size of the region used to store the key value AND
1667                //   the information about the value (size, lang, encoding)
1668                *pValueSize = valueSize + sizeof(SLMetadataInfo);
1669            }
1670        }
1671        break;
1672      default:
1673          *pValueSize = 0;
1674          res = SL_RESULT_PARAMETER_INVALID;
1675          break;
1676    }
1677    return res;
1678}
1679
1680
1681//-----------------------------------------------------------------------------
1682// precondition
1683//  called with no lock held
1684//  ap != NULL
1685//  pValue != NULL
1686SLresult android_audioPlayer_metadata_getValue(CAudioPlayer *ap,
1687        SLuint32 index, SLuint32 size, SLMetadataInfo *pValue) {
1688    if (ap->mAPlayer == 0) {
1689        return SL_RESULT_PARAMETER_INVALID;
1690    }
1691    SLresult res = SL_RESULT_SUCCESS;
1692    switch(ap->mAndroidObjType) {
1693      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1694        {
1695            android::AudioSfDecoder* decoder =
1696                    static_cast<android::AudioSfDecoder*>(ap->mAPlayer.get());
1697            pValue->encoding = SL_CHARACTERENCODING_BINARY;
1698            memcpy((char *) pValue->langCountry, "en", 3); // applicable here?
1699            SLuint32 valueSize = 0;
1700            if ((size < sizeof(SLMetadataInfo)
1701                    || (!decoder->getPcmFormatValueSize(index, &valueSize))
1702                    || (!decoder->getPcmFormatKeyValue(index, size - sizeof(SLMetadataInfo),
1703                            (SLuint32*)pValue->data)))) {
1704                res = SL_RESULT_PARAMETER_INVALID;
1705            } else {
1706                pValue->size = valueSize;
1707            }
1708        }
1709        break;
1710      default:
1711        res = SL_RESULT_PARAMETER_INVALID;
1712        break;
1713    }
1714    return res;
1715}
1716
1717//-----------------------------------------------------------------------------
1718void android_audioPlayer_setPlayState(CAudioPlayer *ap, bool lockAP) {
1719
1720    if (lockAP) { object_lock_shared(&ap->mObject); }
1721    SLuint32 playState = ap->mPlay.mState;
1722    AndroidObjectState objState = ap->mAndroidObjState;
1723    if (lockAP) { object_unlock_shared(&ap->mObject); }
1724
1725    switch(ap->mAndroidObjType) {
1726    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
1727        switch (playState) {
1728        case SL_PLAYSTATE_STOPPED:
1729            SL_LOGV("setting AudioPlayer to SL_PLAYSTATE_STOPPED");
1730            if (NULL != ap->mAudioTrack) {
1731                ap->mAudioTrack->stop();
1732            }
1733            break;
1734        case SL_PLAYSTATE_PAUSED:
1735            SL_LOGV("setting AudioPlayer to SL_PLAYSTATE_PAUSED");
1736            if (NULL != ap->mAudioTrack) {
1737                ap->mAudioTrack->pause();
1738            }
1739            break;
1740        case SL_PLAYSTATE_PLAYING:
1741            SL_LOGV("setting AudioPlayer to SL_PLAYSTATE_PLAYING");
1742            if (NULL != ap->mAudioTrack) {
1743                ap->mAudioTrack->start();
1744            }
1745            break;
1746        default:
1747            // checked by caller, should not happen
1748            break;
1749        }
1750        break;
1751
1752    case AUDIOPLAYER_FROM_URIFD:      // intended fall-through
1753    case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:     // intended fall-through
1754    case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1755        // FIXME report and use the return code to the lock mechanism, which is where play state
1756        //   changes are updated (see object_unlock_exclusive_attributes())
1757        aplayer_setPlayState(ap->mAPlayer, playState, &(ap->mAndroidObjState));
1758        break;
1759    default:
1760        SL_LOGE(ERROR_PLAYERSETPLAYSTATE_UNEXPECTED_OBJECT_TYPE_D, ap->mAndroidObjType);
1761        break;
1762    }
1763}
1764
1765
1766//-----------------------------------------------------------------------------
1767void android_audioPlayer_useEventMask(CAudioPlayer *ap) {
1768    IPlay *pPlayItf = &ap->mPlay;
1769    SLuint32 eventFlags = pPlayItf->mEventFlags;
1770    /*switch(ap->mAndroidObjType) {
1771    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:*/
1772
1773    if (NULL == ap->mAudioTrack) {
1774        return;
1775    }
1776
1777    if (eventFlags & SL_PLAYEVENT_HEADATMARKER) {
1778        ap->mAudioTrack->setMarkerPosition((uint32_t)((((int64_t)pPlayItf->mMarkerPosition
1779                * sles_to_android_sampleRate(ap->mSampleRateMilliHz)))/1000));
1780    } else {
1781        // clear marker
1782        ap->mAudioTrack->setMarkerPosition(0);
1783    }
1784
1785    if (eventFlags & SL_PLAYEVENT_HEADATNEWPOS) {
1786         ap->mAudioTrack->setPositionUpdatePeriod(
1787                (uint32_t)((((int64_t)pPlayItf->mPositionUpdatePeriod
1788                * sles_to_android_sampleRate(ap->mSampleRateMilliHz)))/1000));
1789    } else {
1790        // clear periodic update
1791        ap->mAudioTrack->setPositionUpdatePeriod(0);
1792    }
1793
1794    if (eventFlags & SL_PLAYEVENT_HEADATEND) {
1795        // nothing to do for SL_PLAYEVENT_HEADATEND, callback event will be checked against mask
1796    }
1797
1798    if (eventFlags & SL_PLAYEVENT_HEADMOVING) {
1799        // FIXME support SL_PLAYEVENT_HEADMOVING
1800        SL_LOGD("[ FIXME: IPlay_SetCallbackEventsMask(SL_PLAYEVENT_HEADMOVING) on an "
1801            "SL_OBJECTID_AUDIOPLAYER to be implemented ]");
1802    }
1803    if (eventFlags & SL_PLAYEVENT_HEADSTALLED) {
1804        // nothing to do for SL_PLAYEVENT_HEADSTALLED, callback event will be checked against mask
1805    }
1806
1807}
1808
1809
1810//-----------------------------------------------------------------------------
1811SLresult android_audioPlayer_getDuration(IPlay *pPlayItf, SLmillisecond *pDurMsec) {
1812    CAudioPlayer *ap = (CAudioPlayer *)pPlayItf->mThis;
1813    switch(ap->mAndroidObjType) {
1814
1815      case AUDIOPLAYER_FROM_URIFD:  // intended fall-through
1816      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE: {
1817        int32_t durationMsec = ANDROID_UNKNOWN_TIME;
1818        if (ap->mAPlayer != 0) {
1819            ap->mAPlayer->getDurationMsec(&durationMsec);
1820        }
1821        *pDurMsec = durationMsec == ANDROID_UNKNOWN_TIME ? SL_TIME_UNKNOWN : durationMsec;
1822        break;
1823      }
1824
1825      case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE: // intended fall-through
1826      case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:       // intended fall-through
1827      default: {
1828        *pDurMsec = SL_TIME_UNKNOWN;
1829      }
1830    }
1831    return SL_RESULT_SUCCESS;
1832}
1833
1834
1835//-----------------------------------------------------------------------------
1836void android_audioPlayer_getPosition(IPlay *pPlayItf, SLmillisecond *pPosMsec) {
1837    CAudioPlayer *ap = (CAudioPlayer *)pPlayItf->mThis;
1838    switch(ap->mAndroidObjType) {
1839
1840      case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
1841        if ((ap->mSampleRateMilliHz == 0) || (NULL == ap->mAudioTrack)) {
1842            *pPosMsec = 0;
1843        } else {
1844            uint32_t positionInFrames;
1845            ap->mAudioTrack->getPosition(&positionInFrames);
1846            *pPosMsec = ((int64_t)positionInFrames * 1000) /
1847                    sles_to_android_sampleRate(ap->mSampleRateMilliHz);
1848        }
1849        break;
1850
1851      case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:    // intended fall-through
1852      case AUDIOPLAYER_FROM_URIFD:                    // intended fall-through
1853      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE: {
1854        int32_t posMsec = ANDROID_UNKNOWN_TIME;
1855        if (ap->mAPlayer != 0) {
1856            ap->mAPlayer->getPositionMsec(&posMsec);
1857        }
1858        *pPosMsec = posMsec == ANDROID_UNKNOWN_TIME ? 0 : posMsec;
1859        break;
1860      }
1861
1862      default:
1863        *pPosMsec = 0;
1864    }
1865}
1866
1867
1868//-----------------------------------------------------------------------------
1869void android_audioPlayer_seek(CAudioPlayer *ap, SLmillisecond posMsec) {
1870
1871    switch(ap->mAndroidObjType) {
1872
1873      case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:      // intended fall-through
1874      case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:
1875        break;
1876
1877      case AUDIOPLAYER_FROM_URIFD:                   // intended fall-through
1878      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1879        if (ap->mAPlayer != 0) {
1880            ap->mAPlayer->seek(posMsec);
1881        }
1882        break;
1883
1884      default:
1885        break;
1886    }
1887}
1888
1889
1890//-----------------------------------------------------------------------------
1891void android_audioPlayer_loop(CAudioPlayer *ap, SLboolean loopEnable) {
1892
1893    if ((AUDIOPLAYER_FROM_URIFD == ap->mAndroidObjType) && (ap->mAPlayer != 0)) {
1894        ap->mAPlayer->loop((bool)loopEnable);
1895    }
1896}
1897
1898
1899//-----------------------------------------------------------------------------
1900/*
1901 * Mutes or unmutes the Android media framework object associated with the CAudioPlayer that carries
1902 * the IVolume interface.
1903 * Pre-condition:
1904 *   if ap->mMute is SL_BOOLEAN_FALSE, a call to this function was preceded by a call
1905 *   to android_audioPlayer_volumeUpdate()
1906 */
1907static void android_audioPlayer_setMute(CAudioPlayer* ap) {
1908    switch(ap->mAndroidObjType) {
1909
1910      case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
1911        if (ap->mAudioTrack != NULL) {
1912            // when unmuting: volume levels have already been updated in IVolume_SetMute
1913            ap->mAudioTrack->mute(ap->mMute);
1914        }
1915        break;
1916
1917      case AUDIOPLAYER_FROM_URIFD:                    // intended fall-through
1918      case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:
1919        if ( (ap->mAPlayer != 0) && (NULL != &ap->mVolume) ) {
1920            android_Player_volumeUpdate(ap->mAPlayer, &ap->mVolume);
1921        }
1922        break;
1923
1924      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE: // intented fall-through
1925      default:
1926        break;
1927    }
1928}
1929
1930
1931//-----------------------------------------------------------------------------
1932SLresult android_audioPlayer_volumeUpdate(CAudioPlayer* ap) {
1933    android_audioPlayer_updateStereoVolume(ap);
1934    android_audioPlayer_setMute(ap);
1935    return SL_RESULT_SUCCESS;
1936}
1937
1938
1939//-----------------------------------------------------------------------------
1940SLresult android_audioPlayer_setBufferingUpdateThresholdPerMille(CAudioPlayer *ap,
1941        SLpermille threshold) {
1942    SLresult result = SL_RESULT_SUCCESS;
1943
1944    switch (ap->mAndroidObjType) {
1945      case AUDIOPLAYER_FROM_URIFD:
1946        if (ap->mAPlayer != 0) {
1947            ap->mAPlayer->setBufferingUpdateThreshold(threshold / 10);
1948        }
1949        break;
1950
1951      default: {}
1952    }
1953
1954    return result;
1955}
1956
1957
1958//-----------------------------------------------------------------------------
1959void android_audioPlayer_bufferQueue_onRefilled_l(CAudioPlayer *ap) {
1960    // the AudioTrack associated with the AudioPlayer receiving audio from a PCM buffer
1961    // queue was stopped when the queue become empty, we restart as soon as a new buffer
1962    // has been enqueued since we're in playing state
1963    if (NULL != ap->mAudioTrack) {
1964        ap->mAudioTrack->start();
1965    }
1966
1967    // when the queue became empty, an underflow on the prefetch status itf was sent. Now the queue
1968    // has received new data, signal it has sufficient data
1969    if (IsInterfaceInitialized(&(ap->mObject), MPH_PREFETCHSTATUS)) {
1970        audioPlayer_dispatch_prefetchStatus_lockPrefetch(ap, SL_PREFETCHSTATUS_SUFFICIENTDATA,
1971            true);
1972    }
1973}
1974
1975
1976//-----------------------------------------------------------------------------
1977/*
1978 * BufferQueue::Clear
1979 */
1980SLresult android_audioPlayer_bufferQueue_onClear(CAudioPlayer *ap) {
1981    SLresult result = SL_RESULT_SUCCESS;
1982
1983    switch (ap->mAndroidObjType) {
1984    //-----------------------------------
1985    // AudioTrack
1986    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
1987        if (NULL != ap->mAudioTrack) {
1988            ap->mAudioTrack->flush();
1989        }
1990        break;
1991    default:
1992        result = SL_RESULT_INTERNAL_ERROR;
1993        break;
1994    }
1995
1996    return result;
1997}
1998
1999
2000//-----------------------------------------------------------------------------
2001void android_audioPlayer_androidBufferQueue_registerCallback_l(CAudioPlayer *ap) {
2002    if ((ap->mAndroidObjType == AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE) && (ap->mAPlayer != 0)) {
2003        android::StreamPlayer* splr = static_cast<android::StreamPlayer*>(ap->mAPlayer.get());
2004        splr->registerQueueCallback(
2005                (const void*)ap, true /*userIsAudioPlayer*/,
2006                ap->mAndroidBufferQueue.mContext,
2007                (const void*)&(ap->mAndroidBufferQueue.mItf));
2008    }
2009}
2010
2011//-----------------------------------------------------------------------------
2012void android_audioPlayer_androidBufferQueue_clear_l(CAudioPlayer *ap) {
2013    if ((ap->mAndroidObjType == AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE) && (ap->mAPlayer != 0)) {
2014        android::StreamPlayer* splr = static_cast<android::StreamPlayer*>(ap->mAPlayer.get());
2015        splr->appClear_l();
2016    }
2017}
2018
2019void android_audioPlayer_androidBufferQueue_onRefilled_l(CAudioPlayer *ap) {
2020    if ((ap->mAndroidObjType == AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE) && (ap->mAPlayer != 0)) {
2021        android::StreamPlayer* splr = static_cast<android::StreamPlayer*>(ap->mAPlayer.get());
2022        splr->queueRefilled_l();
2023    }
2024}
2025