AudioPlayer_to_android.cpp revision b8fe327b1505778e82db76de930dd3f62ec99158 
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#define MEDIAPLAYER_MIN_PLAYBACKRATE_PERMILLE AUDIOTRACK_MIN_PLAYBACKRATE_PERMILLE
37#define MEDIAPLAYER_MAX_PLAYBACKRATE_PERMILLE AUDIOTRACK_MAX_PLAYBACKRATE_PERMILLE
38
39//-----------------------------------------------------------------------------
40// FIXME this method will be absorbed into android_audioPlayer_setPlayState() once
41//       bufferqueue and uri/fd playback are moved under the GenericPlayer C++ object
42SLresult aplayer_setPlayState(const android::sp<android::GenericPlayer> &ap, SLuint32 playState,
43        AndroidObjectState* pObjState) {
44    SLresult result = SL_RESULT_SUCCESS;
45    AndroidObjectState objState = *pObjState;
46
47    switch (playState) {
48     case SL_PLAYSTATE_STOPPED:
49         SL_LOGV("setting GenericPlayer to SL_PLAYSTATE_STOPPED");
50         ap->stop();
51         break;
52     case SL_PLAYSTATE_PAUSED:
53         SL_LOGV("setting GenericPlayer to SL_PLAYSTATE_PAUSED");
54         switch(objState) {
55         case ANDROID_UNINITIALIZED:
56             *pObjState = ANDROID_PREPARING;
57             ap->prepare();
58             break;
59         case ANDROID_PREPARING:
60             break;
61         case ANDROID_READY:
62             ap->pause();
63             break;
64         default:
65             SL_LOGE(ERROR_PLAYERSETPLAYSTATE_INVALID_OBJECT_STATE_D, playState);
66             result = SL_RESULT_INTERNAL_ERROR;
67             break;
68         }
69         break;
70     case SL_PLAYSTATE_PLAYING: {
71         SL_LOGV("setting GenericPlayer to SL_PLAYSTATE_PLAYING");
72         switch(objState) {
73         case ANDROID_UNINITIALIZED:
74             *pObjState = ANDROID_PREPARING;
75             ap->prepare();
76             // intended fall through
77         case ANDROID_PREPARING:
78             // intended fall through
79         case ANDROID_READY:
80             ap->play();
81             break;
82         default:
83             SL_LOGE(ERROR_PLAYERSETPLAYSTATE_INVALID_OBJECT_STATE_D, playState);
84             result = SL_RESULT_INTERNAL_ERROR;
85             break;
86         }
87         }
88         break;
89     default:
90         // checked by caller, should not happen
91         SL_LOGE(ERROR_SHOULDNT_BE_HERE_S, "aplayer_setPlayState");
92         result = SL_RESULT_INTERNAL_ERROR;
93         break;
94     }
95
96    return result;
97}
98
99
100//-----------------------------------------------------------------------------
101// Callback associated with a AudioToCbRenderer of an SL ES AudioPlayer that gets its data
102// from a URI or FD, to write the decoded audio data to a buffer queue
103static size_t adecoder_writeToBufferQueue(const uint8_t *data, size_t size, CAudioPlayer* ap) {
104    if (!android::CallbackProtector::enterCbIfOk(ap->mCallbackProtector)) {
105        // it is not safe to enter the callback (the player is about to go away)
106        return 0;
107    }
108    size_t sizeConsumed = 0;
109    SL_LOGD("received %d bytes from decoder", size);
110    slBufferQueueCallback callback = NULL;
111    void * callbackPContext = NULL;
112
113    // push decoded data to the buffer queue
114    object_lock_exclusive(&ap->mObject);
115
116    if (ap->mBufferQueue.mState.count != 0) {
117        assert(ap->mBufferQueue.mFront != ap->mBufferQueue.mRear);
118
119        BufferHeader *oldFront = ap->mBufferQueue.mFront;
120        BufferHeader *newFront = &oldFront[1];
121
122        uint8_t *pDest = (uint8_t *)oldFront->mBuffer + ap->mBufferQueue.mSizeConsumed;
123        if (ap->mBufferQueue.mSizeConsumed + size < oldFront->mSize) {
124            // room to consume the whole or rest of the decoded data in one shot
125            ap->mBufferQueue.mSizeConsumed += size;
126            // consume data but no callback to the BufferQueue interface here
127            memcpy(pDest, data, size);
128            sizeConsumed = size;
129        } else {
130            // push as much as possible of the decoded data into the buffer queue
131            sizeConsumed = oldFront->mSize - ap->mBufferQueue.mSizeConsumed;
132
133            // the buffer at the head of the buffer queue is full, update the state
134            ap->mBufferQueue.mSizeConsumed = 0;
135            if (newFront == &ap->mBufferQueue.mArray[ap->mBufferQueue.mNumBuffers + 1]) {
136                newFront = ap->mBufferQueue.mArray;
137            }
138            ap->mBufferQueue.mFront = newFront;
139
140            ap->mBufferQueue.mState.count--;
141            ap->mBufferQueue.mState.playIndex++;
142            // consume data
143            memcpy(pDest, data, sizeConsumed);
144            // data has been copied to the buffer, and the buffer queue state has been updated
145            // we will notify the client if applicable
146            callback = ap->mBufferQueue.mCallback;
147            // save callback data
148            callbackPContext = ap->mBufferQueue.mContext;
149        }
150
151    } else {
152        // no available buffers in the queue to write the decoded data
153        sizeConsumed = 0;
154    }
155
156    object_unlock_exclusive(&ap->mObject);
157    // notify client
158    if (NULL != callback) {
159        (*callback)(&ap->mBufferQueue.mItf, callbackPContext);
160    }
161
162    ap->mCallbackProtector->exitCb();
163    return sizeConsumed;
164}
165
166
167//-----------------------------------------------------------------------------
168#define LEFT_CHANNEL_MASK  0x1 << 0
169#define RIGHT_CHANNEL_MASK 0x1 << 1
170
171void android_audioPlayer_volumeUpdate(CAudioPlayer* ap)
172{
173    assert(ap != NULL);
174
175    // the source's channel count, where zero means unknown
176    SLuint8 channelCount = ap->mNumChannels;
177
178    // whether each channel is audible
179    bool leftAudibilityFactor, rightAudibilityFactor;
180
181    // mute has priority over solo
182    if (channelCount >= STEREO_CHANNELS) {
183        if (ap->mMuteMask & LEFT_CHANNEL_MASK) {
184            // left muted
185            leftAudibilityFactor = false;
186        } else {
187            // left not muted
188            if (ap->mSoloMask & LEFT_CHANNEL_MASK) {
189                // left soloed
190                leftAudibilityFactor = true;
191            } else {
192                // left not soloed
193                if (ap->mSoloMask & RIGHT_CHANNEL_MASK) {
194                    // right solo silences left
195                    leftAudibilityFactor = false;
196                } else {
197                    // left and right are not soloed, and left is not muted
198                    leftAudibilityFactor = true;
199                }
200            }
201        }
202
203        if (ap->mMuteMask & RIGHT_CHANNEL_MASK) {
204            // right muted
205            rightAudibilityFactor = false;
206        } else {
207            // right not muted
208            if (ap->mSoloMask & RIGHT_CHANNEL_MASK) {
209                // right soloed
210                rightAudibilityFactor = true;
211            } else {
212                // right not soloed
213                if (ap->mSoloMask & LEFT_CHANNEL_MASK) {
214                    // left solo silences right
215                    rightAudibilityFactor = false;
216                } else {
217                    // left and right are not soloed, and right is not muted
218                    rightAudibilityFactor = true;
219                }
220            }
221        }
222
223    // channel mute and solo are ignored for mono and unknown channel count sources
224    } else {
225        leftAudibilityFactor = true;
226        rightAudibilityFactor = true;
227    }
228
229    // compute volumes without setting
230    const bool audibilityFactors[2] = {leftAudibilityFactor, rightAudibilityFactor};
231    float volumes[2];
232    android_player_volumeUpdate(volumes, &ap->mVolume, channelCount, ap->mAmplFromDirectLevel,
233            audibilityFactors);
234    float leftVol = volumes[0], rightVol = volumes[1];
235
236    // set volume on the underlying media player or audio track
237    if (ap->mAPlayer != 0) {
238        ap->mAPlayer->setVolume(leftVol, rightVol);
239    } else if (ap->mAudioTrack != 0) {
240        ap->mAudioTrack->setVolume(leftVol, rightVol);
241    }
242
243    // changes in the AudioPlayer volume must be reflected in the send level:
244    //  in SLEffectSendItf or in SLAndroidEffectSendItf?
245    // FIXME replace interface test by an internal API once we have one.
246    if (NULL != ap->mEffectSend.mItf) {
247        for (unsigned int i=0 ; i<AUX_MAX ; i++) {
248            if (ap->mEffectSend.mEnableLevels[i].mEnable) {
249                android_fxSend_setSendLevel(ap,
250                        ap->mEffectSend.mEnableLevels[i].mSendLevel + ap->mVolume.mLevel);
251                // there's a single aux bus on Android, so we can stop looking once the first
252                // aux effect is found.
253                break;
254            }
255        }
256    } else if (NULL != ap->mAndroidEffectSend.mItf) {
257        android_fxSend_setSendLevel(ap, ap->mAndroidEffectSend.mSendLevel + ap->mVolume.mLevel);
258    }
259}
260
261// Called by android_audioPlayer_volumeUpdate and android_mediaPlayer_volumeUpdate to compute
262// volumes, but setting volumes is handled by the caller.
263
264void android_player_volumeUpdate(float *pVolumes /*[2]*/, const IVolume *volumeItf, unsigned
265channelCount, float amplFromDirectLevel, const bool *audibilityFactors /*[2]*/)
266{
267    assert(pVolumes != NULL);
268    assert(volumeItf != NULL);
269    // OK for audibilityFactors to be NULL
270
271    bool leftAudibilityFactor, rightAudibilityFactor;
272
273    // apply player mute factor
274    // note that AudioTrack has mute() but not MediaPlayer, so it's easier to use volume
275    // to mute for both rather than calling mute() for AudioTrack
276
277    // player is muted
278    if (volumeItf->mMute) {
279        leftAudibilityFactor = false;
280        rightAudibilityFactor = false;
281    // player isn't muted, and channel mute/solo audibility factors are available (AudioPlayer)
282    } else if (audibilityFactors != NULL) {
283        leftAudibilityFactor = audibilityFactors[0];
284        rightAudibilityFactor = audibilityFactors[1];
285    // player isn't muted, and channel mute/solo audibility factors aren't available (MediaPlayer)
286    } else {
287        leftAudibilityFactor = true;
288        rightAudibilityFactor = true;
289    }
290
291    // compute amplification as the combination of volume level and stereo position
292    //   amplification (or attenuation) from volume level
293    float amplFromVolLevel = sles_to_android_amplification(volumeItf->mLevel);
294    //   amplification from direct level (changed in SLEffectSendtItf and SLAndroidEffectSendItf)
295    float leftVol  = amplFromVolLevel * amplFromDirectLevel;
296    float rightVol = leftVol;
297
298    // amplification from stereo position
299    if (volumeItf->mEnableStereoPosition) {
300        // Left/right amplification (can be attenuations) factors derived for the StereoPosition
301        float amplFromStereoPos[STEREO_CHANNELS];
302        // panning law depends on content channel count: mono to stereo panning vs stereo balance
303        if (1 == channelCount) {
304            // mono to stereo panning
305            double theta = (1000+volumeItf->mStereoPosition)*M_PI_4/1000.0f; // 0 <= theta <= Pi/2
306            amplFromStereoPos[0] = cos(theta);
307            amplFromStereoPos[1] = sin(theta);
308        // channel count is 0 (unknown), 2 (stereo), or > 2 (multi-channel)
309        } else {
310            // stereo balance
311            if (volumeItf->mStereoPosition > 0) {
312                amplFromStereoPos[0] = (1000-volumeItf->mStereoPosition)/1000.0f;
313                amplFromStereoPos[1] = 1.0f;
314            } else {
315                amplFromStereoPos[0] = 1.0f;
316                amplFromStereoPos[1] = (1000+volumeItf->mStereoPosition)/1000.0f;
317            }
318        }
319        leftVol  *= amplFromStereoPos[0];
320        rightVol *= amplFromStereoPos[1];
321    }
322
323    // apply audibility factors
324    if (!leftAudibilityFactor) {
325        leftVol = 0.0;
326    }
327    if (!rightAudibilityFactor) {
328        rightVol = 0.0;
329    }
330
331    // return the computed volumes
332    pVolumes[0] = leftVol;
333    pVolumes[1] = rightVol;
334}
335
336//-----------------------------------------------------------------------------
337void audioTrack_handleMarker_lockPlay(CAudioPlayer* ap) {
338    //SL_LOGV("received event EVENT_MARKER from AudioTrack");
339    slPlayCallback callback = NULL;
340    void* callbackPContext = NULL;
341
342    interface_lock_shared(&ap->mPlay);
343    callback = ap->mPlay.mCallback;
344    callbackPContext = ap->mPlay.mContext;
345    interface_unlock_shared(&ap->mPlay);
346
347    if (NULL != callback) {
348        // getting this event implies SL_PLAYEVENT_HEADATMARKER was set in the event mask
349        (*callback)(&ap->mPlay.mItf, callbackPContext, SL_PLAYEVENT_HEADATMARKER);
350    }
351}
352
353//-----------------------------------------------------------------------------
354void audioTrack_handleNewPos_lockPlay(CAudioPlayer* ap) {
355    //SL_LOGV("received event EVENT_NEW_POS from AudioTrack");
356    slPlayCallback callback = NULL;
357    void* callbackPContext = NULL;
358
359    interface_lock_shared(&ap->mPlay);
360    callback = ap->mPlay.mCallback;
361    callbackPContext = ap->mPlay.mContext;
362    interface_unlock_shared(&ap->mPlay);
363
364    if (NULL != callback) {
365        // getting this event implies SL_PLAYEVENT_HEADATNEWPOS was set in the event mask
366        (*callback)(&ap->mPlay.mItf, callbackPContext, SL_PLAYEVENT_HEADATNEWPOS);
367    }
368}
369
370
371//-----------------------------------------------------------------------------
372void audioTrack_handleUnderrun_lockPlay(CAudioPlayer* ap) {
373    slPlayCallback callback = NULL;
374    void* callbackPContext = NULL;
375
376    interface_lock_shared(&ap->mPlay);
377    callback = ap->mPlay.mCallback;
378    callbackPContext = ap->mPlay.mContext;
379    bool headStalled = (ap->mPlay.mEventFlags & SL_PLAYEVENT_HEADSTALLED) != 0;
380    interface_unlock_shared(&ap->mPlay);
381
382    if ((NULL != callback) && headStalled) {
383        (*callback)(&ap->mPlay.mItf, callbackPContext, SL_PLAYEVENT_HEADSTALLED);
384    }
385}
386
387
388//-----------------------------------------------------------------------------
389/**
390 * post-condition: play state of AudioPlayer is SL_PLAYSTATE_PAUSED if setPlayStateToPaused is true
391 *
392 * note: a conditional flag, setPlayStateToPaused, is used here to specify whether the play state
393 *       needs to be changed when the player reaches the end of the content to play. This is
394 *       relative to what the specification describes for buffer queues vs the
395 *       SL_PLAYEVENT_HEADATEND event. In the OpenSL ES specification 1.0.1:
396 *        - section 8.12 SLBufferQueueItf states "In the case of starvation due to insufficient
397 *          buffers in the queue, the playing of audio data stops. The player remains in the
398 *          SL_PLAYSTATE_PLAYING state."
399 *        - section 9.2.31 SL_PLAYEVENT states "SL_PLAYEVENT_HEADATEND Playback head is at the end
400 *          of the current content and the player has paused."
401 */
402void audioPlayer_dispatch_headAtEnd_lockPlay(CAudioPlayer *ap, bool setPlayStateToPaused,
403        bool needToLock) {
404    //SL_LOGV("ap=%p, setPlayStateToPaused=%d, needToLock=%d", ap, setPlayStateToPaused,
405    //        needToLock);
406    slPlayCallback playCallback = NULL;
407    void * playContext = NULL;
408    // SLPlayItf callback or no callback?
409    if (needToLock) {
410        interface_lock_exclusive(&ap->mPlay);
411    }
412    if (ap->mPlay.mEventFlags & SL_PLAYEVENT_HEADATEND) {
413        playCallback = ap->mPlay.mCallback;
414        playContext = ap->mPlay.mContext;
415    }
416    if (setPlayStateToPaused) {
417        ap->mPlay.mState = SL_PLAYSTATE_PAUSED;
418    }
419    if (needToLock) {
420        interface_unlock_exclusive(&ap->mPlay);
421    }
422    // enqueue callback with no lock held
423    if (NULL != playCallback) {
424#ifndef USE_ASYNCHRONOUS_PLAY_CALLBACK
425        (*playCallback)(&ap->mPlay.mItf, playContext, SL_PLAYEVENT_HEADATEND);
426#else
427        SLresult result = EnqueueAsyncCallback_ppi(ap, playCallback, &ap->mPlay.mItf, playContext,
428                SL_PLAYEVENT_HEADATEND);
429        if (SL_RESULT_SUCCESS != result) {
430            ALOGW("Callback %p(%p, %p, SL_PLAYEVENT_HEADATEND) dropped", playCallback,
431                    &ap->mPlay.mItf, playContext);
432        }
433#endif
434    }
435
436}
437
438
439//-----------------------------------------------------------------------------
440SLresult audioPlayer_setStreamType(CAudioPlayer* ap, SLint32 type) {
441    SLresult result = SL_RESULT_SUCCESS;
442    SL_LOGV("type %d", type);
443
444    audio_stream_type_t newStreamType = ANDROID_DEFAULT_OUTPUT_STREAM_TYPE;
445    switch(type) {
446    case SL_ANDROID_STREAM_VOICE:
447        newStreamType = AUDIO_STREAM_VOICE_CALL;
448        break;
449    case SL_ANDROID_STREAM_SYSTEM:
450        newStreamType = AUDIO_STREAM_SYSTEM;
451        break;
452    case SL_ANDROID_STREAM_RING:
453        newStreamType = AUDIO_STREAM_RING;
454        break;
455    case SL_ANDROID_STREAM_MEDIA:
456        newStreamType = AUDIO_STREAM_MUSIC;
457        break;
458    case SL_ANDROID_STREAM_ALARM:
459        newStreamType = AUDIO_STREAM_ALARM;
460        break;
461    case SL_ANDROID_STREAM_NOTIFICATION:
462        newStreamType = AUDIO_STREAM_NOTIFICATION;
463        break;
464    default:
465        SL_LOGE(ERROR_PLAYERSTREAMTYPE_SET_UNKNOWN_TYPE);
466        result = SL_RESULT_PARAMETER_INVALID;
467        break;
468    }
469
470    // stream type needs to be set before the object is realized
471    // (ap->mAudioTrack is supposed to be NULL until then)
472    if (SL_OBJECT_STATE_UNREALIZED != ap->mObject.mState) {
473        SL_LOGE(ERROR_PLAYERSTREAMTYPE_REALIZED);
474        result = SL_RESULT_PRECONDITIONS_VIOLATED;
475    } else {
476        ap->mStreamType = newStreamType;
477    }
478
479    return result;
480}
481
482
483//-----------------------------------------------------------------------------
484SLresult audioPlayer_getStreamType(CAudioPlayer* ap, SLint32 *pType) {
485    SLresult result = SL_RESULT_SUCCESS;
486
487    switch(ap->mStreamType) {
488    case AUDIO_STREAM_VOICE_CALL:
489        *pType = SL_ANDROID_STREAM_VOICE;
490        break;
491    case AUDIO_STREAM_SYSTEM:
492        *pType = SL_ANDROID_STREAM_SYSTEM;
493        break;
494    case AUDIO_STREAM_RING:
495        *pType = SL_ANDROID_STREAM_RING;
496        break;
497    case AUDIO_STREAM_DEFAULT:
498    case AUDIO_STREAM_MUSIC:
499        *pType = SL_ANDROID_STREAM_MEDIA;
500        break;
501    case AUDIO_STREAM_ALARM:
502        *pType = SL_ANDROID_STREAM_ALARM;
503        break;
504    case AUDIO_STREAM_NOTIFICATION:
505        *pType = SL_ANDROID_STREAM_NOTIFICATION;
506        break;
507    default:
508        result = SL_RESULT_INTERNAL_ERROR;
509        *pType = SL_ANDROID_STREAM_MEDIA;
510        break;
511    }
512
513    return result;
514}
515
516
517//-----------------------------------------------------------------------------
518void audioPlayer_auxEffectUpdate(CAudioPlayer* ap) {
519    if ((ap->mAudioTrack != 0) && (ap->mAuxEffect != 0)) {
520        android_fxSend_attach(ap, true, ap->mAuxEffect, ap->mVolume.mLevel + ap->mAuxSendLevel);
521    }
522}
523
524
525//-----------------------------------------------------------------------------
526/*
527 * returns true if the given data sink is supported by AudioPlayer that doesn't
528 *   play to an OutputMix object, false otherwise
529 *
530 * pre-condition: the locator of the audio sink is not SL_DATALOCATOR_OUTPUTMIX
531 */
532bool audioPlayer_isSupportedNonOutputMixSink(const SLDataSink* pAudioSink) {
533    bool result = true;
534    const SLuint32 sinkLocatorType = *(SLuint32 *)pAudioSink->pLocator;
535    const SLuint32 sinkFormatType = *(SLuint32 *)pAudioSink->pFormat;
536
537    switch (sinkLocatorType) {
538
539    case SL_DATALOCATOR_BUFFERQUEUE:
540    case SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE:
541        if (SL_DATAFORMAT_PCM != sinkFormatType) {
542            SL_LOGE("Unsupported sink format 0x%x, expected SL_DATAFORMAT_PCM",
543                    (unsigned)sinkFormatType);
544            result = false;
545        }
546        // it's no use checking the PCM format fields because additional characteristics
547        // such as the number of channels, or sample size are unknown to the player at this stage
548        break;
549
550    default:
551        SL_LOGE("Unsupported sink locator type 0x%x", (unsigned)sinkLocatorType);
552        result = false;
553        break;
554    }
555
556    return result;
557}
558
559
560//-----------------------------------------------------------------------------
561/*
562 * returns the Android object type if the locator type combinations for the source and sinks
563 *   are supported by this implementation, INVALID_TYPE otherwise
564 */
565static
566AndroidObjectType audioPlayer_getAndroidObjectTypeForSourceSink(const CAudioPlayer *ap) {
567
568    const SLDataSource *pAudioSrc = &ap->mDataSource.u.mSource;
569    const SLDataSink *pAudioSnk = &ap->mDataSink.u.mSink;
570    const SLuint32 sourceLocatorType = *(SLuint32 *)pAudioSrc->pLocator;
571    const SLuint32 sinkLocatorType = *(SLuint32 *)pAudioSnk->pLocator;
572    AndroidObjectType type = INVALID_TYPE;
573
574    //--------------------------------------
575    // Sink / source matching check:
576    // the following source / sink combinations are supported
577    //     SL_DATALOCATOR_BUFFERQUEUE                / SL_DATALOCATOR_OUTPUTMIX
578    //     SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE   / SL_DATALOCATOR_OUTPUTMIX
579    //     SL_DATALOCATOR_URI                        / SL_DATALOCATOR_OUTPUTMIX
580    //     SL_DATALOCATOR_ANDROIDFD                  / SL_DATALOCATOR_OUTPUTMIX
581    //     SL_DATALOCATOR_ANDROIDBUFFERQUEUE         / SL_DATALOCATOR_OUTPUTMIX
582    //     SL_DATALOCATOR_ANDROIDBUFFERQUEUE         / SL_DATALOCATOR_BUFFERQUEUE
583    //     SL_DATALOCATOR_URI                        / SL_DATALOCATOR_BUFFERQUEUE
584    //     SL_DATALOCATOR_ANDROIDFD                  / SL_DATALOCATOR_BUFFERQUEUE
585    //     SL_DATALOCATOR_URI                        / SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE
586    //     SL_DATALOCATOR_ANDROIDFD                  / SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE
587    switch (sinkLocatorType) {
588
589    case SL_DATALOCATOR_OUTPUTMIX: {
590        switch (sourceLocatorType) {
591
592        //   Buffer Queue to AudioTrack
593        case SL_DATALOCATOR_BUFFERQUEUE:
594        case SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE:
595            type = AUDIOPLAYER_FROM_PCM_BUFFERQUEUE;
596            break;
597
598        //   URI or FD to MediaPlayer
599        case SL_DATALOCATOR_URI:
600        case SL_DATALOCATOR_ANDROIDFD:
601            type = AUDIOPLAYER_FROM_URIFD;
602            break;
603
604        //   Android BufferQueue to MediaPlayer (shared memory streaming)
605        case SL_DATALOCATOR_ANDROIDBUFFERQUEUE:
606            type = AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE;
607            break;
608
609        default:
610            SL_LOGE("Source data locator 0x%x not supported with SL_DATALOCATOR_OUTPUTMIX sink",
611                    (unsigned)sourceLocatorType);
612            break;
613        }
614        }
615        break;
616
617    case SL_DATALOCATOR_BUFFERQUEUE:
618    case SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE:
619        switch (sourceLocatorType) {
620
621        //   URI or FD decoded to PCM in a buffer queue
622        case SL_DATALOCATOR_URI:
623        case SL_DATALOCATOR_ANDROIDFD:
624            type = AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE;
625            break;
626
627        //   AAC ADTS Android buffer queue decoded to PCM in a buffer queue
628        case SL_DATALOCATOR_ANDROIDBUFFERQUEUE:
629            type = AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE;
630            break;
631
632        default:
633            SL_LOGE("Source data locator 0x%x not supported with SL_DATALOCATOR_BUFFERQUEUE sink",
634                    (unsigned)sourceLocatorType);
635            break;
636        }
637        break;
638
639    default:
640        SL_LOGE("Sink data locator 0x%x not supported", (unsigned)sinkLocatorType);
641        break;
642    }
643
644    return type;
645}
646
647
648//-----------------------------------------------------------------------------
649/*
650 * Callback associated with an SfPlayer of an SL ES AudioPlayer that gets its data
651 * from a URI or FD, for prepare, prefetch, and play events
652 */
653static void sfplayer_handlePrefetchEvent(int event, int data1, int data2, void* user) {
654
655    // FIXME see similar code and comment in player_handleMediaPlayerEventNotifications
656
657    if (NULL == user) {
658        return;
659    }
660
661    CAudioPlayer *ap = (CAudioPlayer *)user;
662    if (!android::CallbackProtector::enterCbIfOk(ap->mCallbackProtector)) {
663        // it is not safe to enter the callback (the track is about to go away)
664        return;
665    }
666    union {
667        char c[sizeof(int)];
668        int i;
669    } u;
670    u.i = event;
671    SL_LOGV("sfplayer_handlePrefetchEvent(event='%c%c%c%c' (%d), data1=%d, data2=%d, user=%p) from "
672            "SfAudioPlayer", u.c[3], u.c[2], u.c[1], u.c[0], event, data1, data2, user);
673    switch(event) {
674
675    case android::GenericPlayer::kEventPrepared: {
676        SL_LOGV("Received GenericPlayer::kEventPrepared for CAudioPlayer %p", ap);
677
678        // assume no callback
679        slPrefetchCallback callback = NULL;
680        void* callbackPContext;
681        SLuint32 events;
682
683        object_lock_exclusive(&ap->mObject);
684
685        // mark object as prepared; same state is used for successful or unsuccessful prepare
686        assert(ap->mAndroidObjState == ANDROID_PREPARING);
687        ap->mAndroidObjState = ANDROID_READY;
688
689        if (PLAYER_SUCCESS == data1) {
690            // Most of successful prepare completion for ap->mAPlayer
691            // is handled by GenericPlayer and its subclasses.
692        } else {
693            // SfPlayer prepare() failed prefetching, there is no event in SLPrefetchStatus to
694            //  indicate a prefetch error, so we signal it by sending simultaneously two events:
695            //  - SL_PREFETCHEVENT_FILLLEVELCHANGE with a level of 0
696            //  - SL_PREFETCHEVENT_STATUSCHANGE with a status of SL_PREFETCHSTATUS_UNDERFLOW
697            SL_LOGE(ERROR_PLAYER_PREFETCH_d, data1);
698            if (IsInterfaceInitialized(&ap->mObject, MPH_PREFETCHSTATUS)) {
699                ap->mPrefetchStatus.mLevel = 0;
700                ap->mPrefetchStatus.mStatus = SL_PREFETCHSTATUS_UNDERFLOW;
701                if (!(~ap->mPrefetchStatus.mCallbackEventsMask &
702                        (SL_PREFETCHEVENT_FILLLEVELCHANGE | SL_PREFETCHEVENT_STATUSCHANGE))) {
703                    callback = ap->mPrefetchStatus.mCallback;
704                    callbackPContext = ap->mPrefetchStatus.mContext;
705                    events = SL_PREFETCHEVENT_FILLLEVELCHANGE | SL_PREFETCHEVENT_STATUSCHANGE;
706                }
707            }
708        }
709
710        object_unlock_exclusive(&ap->mObject);
711
712        // callback with no lock held
713        if (NULL != callback) {
714            (*callback)(&ap->mPrefetchStatus.mItf, callbackPContext, events);
715        }
716
717    }
718    break;
719
720    case android::GenericPlayer::kEventPrefetchFillLevelUpdate : {
721        if (!IsInterfaceInitialized(&ap->mObject, MPH_PREFETCHSTATUS)) {
722            break;
723        }
724        slPrefetchCallback callback = NULL;
725        void* callbackPContext = NULL;
726
727        // SLPrefetchStatusItf callback or no callback?
728        interface_lock_exclusive(&ap->mPrefetchStatus);
729        if (ap->mPrefetchStatus.mCallbackEventsMask & SL_PREFETCHEVENT_FILLLEVELCHANGE) {
730            callback = ap->mPrefetchStatus.mCallback;
731            callbackPContext = ap->mPrefetchStatus.mContext;
732        }
733        ap->mPrefetchStatus.mLevel = (SLpermille)data1;
734        interface_unlock_exclusive(&ap->mPrefetchStatus);
735
736        // callback with no lock held
737        if (NULL != callback) {
738            (*callback)(&ap->mPrefetchStatus.mItf, callbackPContext,
739                    SL_PREFETCHEVENT_FILLLEVELCHANGE);
740        }
741    }
742    break;
743
744    case android::GenericPlayer::kEventPrefetchStatusChange: {
745        if (!IsInterfaceInitialized(&ap->mObject, MPH_PREFETCHSTATUS)) {
746            break;
747        }
748        slPrefetchCallback callback = NULL;
749        void* callbackPContext = NULL;
750
751        // SLPrefetchStatusItf callback or no callback?
752        object_lock_exclusive(&ap->mObject);
753        if (ap->mPrefetchStatus.mCallbackEventsMask & SL_PREFETCHEVENT_STATUSCHANGE) {
754            callback = ap->mPrefetchStatus.mCallback;
755            callbackPContext = ap->mPrefetchStatus.mContext;
756        }
757        if (data1 >= android::kStatusIntermediate) {
758            ap->mPrefetchStatus.mStatus = SL_PREFETCHSTATUS_SUFFICIENTDATA;
759        } else if (data1 < android::kStatusIntermediate) {
760            ap->mPrefetchStatus.mStatus = SL_PREFETCHSTATUS_UNDERFLOW;
761        }
762        object_unlock_exclusive(&ap->mObject);
763
764        // callback with no lock held
765        if (NULL != callback) {
766            (*callback)(&ap->mPrefetchStatus.mItf, callbackPContext, SL_PREFETCHEVENT_STATUSCHANGE);
767        }
768        }
769        break;
770
771    case android::GenericPlayer::kEventEndOfStream: {
772        audioPlayer_dispatch_headAtEnd_lockPlay(ap, true /*set state to paused?*/, true);
773        if ((ap->mAudioTrack != 0) && (!ap->mSeek.mLoopEnabled)) {
774            ap->mAudioTrack->stop();
775        }
776        }
777        break;
778
779    case android::GenericPlayer::kEventChannelCount: {
780        object_lock_exclusive(&ap->mObject);
781        if (UNKNOWN_NUMCHANNELS == ap->mNumChannels && UNKNOWN_NUMCHANNELS != data1) {
782            ap->mNumChannels = data1;
783            android_audioPlayer_volumeUpdate(ap);
784        }
785        object_unlock_exclusive(&ap->mObject);
786        }
787        break;
788
789    case android::GenericPlayer::kEventPlay: {
790        slPlayCallback callback = NULL;
791        void* callbackPContext = NULL;
792
793        interface_lock_shared(&ap->mPlay);
794        callback = ap->mPlay.mCallback;
795        callbackPContext = ap->mPlay.mContext;
796        interface_unlock_shared(&ap->mPlay);
797
798        if (NULL != callback) {
799            SLuint32 event = (SLuint32) data1;  // SL_PLAYEVENT_HEAD*
800#ifndef USE_ASYNCHRONOUS_PLAY_CALLBACK
801            // synchronous callback requires a synchronous GetPosition implementation
802            (*callback)(&ap->mPlay.mItf, callbackPContext, event);
803#else
804            // asynchronous callback works with any GetPosition implementation
805            SLresult result = EnqueueAsyncCallback_ppi(ap, callback, &ap->mPlay.mItf,
806                    callbackPContext, event);
807            if (SL_RESULT_SUCCESS != result) {
808                ALOGW("Callback %p(%p, %p, 0x%x) dropped", callback,
809                        &ap->mPlay.mItf, callbackPContext, event);
810            }
811#endif
812        }
813        }
814        break;
815
816      case android::GenericPlayer::kEventErrorAfterPrepare: {
817        SL_LOGV("kEventErrorAfterPrepare");
818
819        // assume no callback
820        slPrefetchCallback callback = NULL;
821        void* callbackPContext = NULL;
822
823        object_lock_exclusive(&ap->mObject);
824        if (IsInterfaceInitialized(&ap->mObject, MPH_PREFETCHSTATUS)) {
825            ap->mPrefetchStatus.mLevel = 0;
826            ap->mPrefetchStatus.mStatus = SL_PREFETCHSTATUS_UNDERFLOW;
827            if (!(~ap->mPrefetchStatus.mCallbackEventsMask &
828                    (SL_PREFETCHEVENT_FILLLEVELCHANGE | SL_PREFETCHEVENT_STATUSCHANGE))) {
829                callback = ap->mPrefetchStatus.mCallback;
830                callbackPContext = ap->mPrefetchStatus.mContext;
831            }
832        }
833        object_unlock_exclusive(&ap->mObject);
834
835        // FIXME there's interesting information in data1, but no API to convey it to client
836        SL_LOGE("Error after prepare: %d", data1);
837
838        // callback with no lock held
839        if (NULL != callback) {
840            (*callback)(&ap->mPrefetchStatus.mItf, callbackPContext,
841                    SL_PREFETCHEVENT_FILLLEVELCHANGE | SL_PREFETCHEVENT_STATUSCHANGE);
842        }
843
844      }
845      break;
846
847    case android::GenericPlayer::kEventHasVideoSize:
848        //SL_LOGW("Unexpected kEventHasVideoSize");
849        break;
850
851    default:
852        break;
853    }
854
855    ap->mCallbackProtector->exitCb();
856}
857
858// From EffectDownmix.h
859const uint32_t kSides = AUDIO_CHANNEL_OUT_SIDE_LEFT | AUDIO_CHANNEL_OUT_SIDE_RIGHT;
860const uint32_t kBacks = AUDIO_CHANNEL_OUT_BACK_LEFT | AUDIO_CHANNEL_OUT_BACK_RIGHT;
861const uint32_t kUnsupported =
862        AUDIO_CHANNEL_OUT_FRONT_LEFT_OF_CENTER | AUDIO_CHANNEL_OUT_FRONT_RIGHT_OF_CENTER |
863        AUDIO_CHANNEL_OUT_TOP_CENTER |
864        AUDIO_CHANNEL_OUT_TOP_FRONT_LEFT |
865        AUDIO_CHANNEL_OUT_TOP_FRONT_CENTER |
866        AUDIO_CHANNEL_OUT_TOP_FRONT_RIGHT |
867        AUDIO_CHANNEL_OUT_TOP_BACK_LEFT |
868        AUDIO_CHANNEL_OUT_TOP_BACK_CENTER |
869        AUDIO_CHANNEL_OUT_TOP_BACK_RIGHT;
870
871//TODO(pmclean) This will need to be revisited when arbitrary N-channel support is added.
872SLresult android_audioPlayer_validateChannelMask(uint32_t mask, int numChans) {
873    // Check that the number of channels falls within bounds.
874    if (numChans < 0 || numChans > 8) {
875        return SL_RESULT_CONTENT_UNSUPPORTED;
876    }
877    // Are there the right number of channels in the mask?
878    if (audio_channel_count_from_out_mask(mask) != numChans) {
879        return SL_RESULT_CONTENT_UNSUPPORTED;
880    }
881    // check against unsupported channels
882    if (mask & kUnsupported) {
883        ALOGE("Unsupported channels (top or front left/right of center)");
884        return SL_RESULT_CONTENT_UNSUPPORTED;
885    }
886    // verify has FL/FR if more than one channel
887    if (numChans > 1 && (mask & AUDIO_CHANNEL_OUT_STEREO) != AUDIO_CHANNEL_OUT_STEREO) {
888        ALOGE("Front channels must be present");
889        return SL_RESULT_CONTENT_UNSUPPORTED;
890    }
891    // verify uses SIDE as a pair (ok if not using SIDE at all)
892    bool hasSides = false;
893    if ((mask & kSides) != 0) {
894        if ((mask & kSides) != kSides) {
895            ALOGE("Side channels must be used as a pair");
896            return SL_RESULT_CONTENT_UNSUPPORTED;
897        }
898        hasSides = true;
899    }
900    // verify uses BACK as a pair (ok if not using BACK at all)
901    bool hasBacks = false;
902    if ((mask & kBacks) != 0) {
903        if ((mask & kBacks) != kBacks) {
904            ALOGE("Back channels must be used as a pair");
905            return SL_RESULT_CONTENT_UNSUPPORTED;
906        }
907        hasBacks = true;
908    }
909
910    return SL_RESULT_SUCCESS;
911}
912
913//-----------------------------------------------------------------------------
914SLresult android_audioPlayer_checkSourceSink(CAudioPlayer *pAudioPlayer)
915{
916    // verify that the locator types for the source / sink combination is supported
917    pAudioPlayer->mAndroidObjType = audioPlayer_getAndroidObjectTypeForSourceSink(pAudioPlayer);
918    if (INVALID_TYPE == pAudioPlayer->mAndroidObjType) {
919        return SL_RESULT_PARAMETER_INVALID;
920    }
921
922    const SLDataSource *pAudioSrc = &pAudioPlayer->mDataSource.u.mSource;
923    const SLDataSink *pAudioSnk = &pAudioPlayer->mDataSink.u.mSink;
924
925    // format check:
926    const SLuint32 sourceLocatorType = *(SLuint32 *)pAudioSrc->pLocator;
927    const SLuint32 sinkLocatorType = *(SLuint32 *)pAudioSnk->pLocator;
928    const SLuint32 sourceFormatType = *(SLuint32 *)pAudioSrc->pFormat;
929    const SLuint32 sinkFormatType = *(SLuint32 *)pAudioSnk->pFormat;
930
931    const SLuint32 *df_representation = NULL; // pointer to representation field, if it exists
932
933    switch (sourceLocatorType) {
934    //------------------
935    //   Buffer Queues
936    case SL_DATALOCATOR_BUFFERQUEUE:
937    case SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE:
938        {
939        SLDataLocator_BufferQueue *dl_bq = (SLDataLocator_BufferQueue *) pAudioSrc->pLocator;
940
941        // Buffer format
942        switch (sourceFormatType) {
943        //     currently only PCM buffer queues are supported,
944        case SL_ANDROID_DATAFORMAT_PCM_EX: {
945            const SLAndroidDataFormat_PCM_EX *df_pcm =
946                    (const SLAndroidDataFormat_PCM_EX *) pAudioSrc->pFormat;
947            switch (df_pcm->representation) {
948            case SL_ANDROID_PCM_REPRESENTATION_SIGNED_INT:
949            case SL_ANDROID_PCM_REPRESENTATION_UNSIGNED_INT:
950            case SL_ANDROID_PCM_REPRESENTATION_FLOAT:
951                df_representation = &df_pcm->representation;
952                break;
953            default:
954                SL_LOGE("Cannot create audio player: unsupported representation: %d",
955                        df_pcm->representation);
956                return SL_RESULT_CONTENT_UNSUPPORTED;
957            }
958            } // SL_ANDROID_DATAFORMAT_PCM_EX - fall through to next test.
959        case SL_DATAFORMAT_PCM: {
960            const SLDataFormat_PCM *df_pcm = (const SLDataFormat_PCM *) pAudioSrc->pFormat;
961            SLresult result = android_audioPlayer_validateChannelMask(df_pcm->channelMask,
962                                                                      df_pcm->numChannels);
963            if (result != SL_RESULT_SUCCESS) {
964                SL_LOGE("Cannot create audio player: unsupported PCM data source with %u channels",
965                        (unsigned) df_pcm->numChannels);
966                return result;
967            }
968
969            switch (df_pcm->samplesPerSec) {
970            case SL_SAMPLINGRATE_8:
971            case SL_SAMPLINGRATE_11_025:
972            case SL_SAMPLINGRATE_12:
973            case SL_SAMPLINGRATE_16:
974            case SL_SAMPLINGRATE_22_05:
975            case SL_SAMPLINGRATE_24:
976            case SL_SAMPLINGRATE_32:
977            case SL_SAMPLINGRATE_44_1:
978            case SL_SAMPLINGRATE_48:
979                break;
980            case SL_SAMPLINGRATE_64:
981            case SL_SAMPLINGRATE_88_2:
982            case SL_SAMPLINGRATE_96:
983            case SL_SAMPLINGRATE_192:
984            default:
985                SL_LOGE("Cannot create audio player: unsupported sample rate %u milliHz",
986                    (unsigned) df_pcm->samplesPerSec);
987                return SL_RESULT_CONTENT_UNSUPPORTED;
988            }
989            switch (df_pcm->bitsPerSample) {
990            case SL_PCMSAMPLEFORMAT_FIXED_8:
991                if (df_representation != NULL &&
992                        *df_representation != SL_ANDROID_PCM_REPRESENTATION_UNSIGNED_INT) {
993                    goto default_err;
994                }
995                break;
996            case SL_PCMSAMPLEFORMAT_FIXED_16:
997            case SL_PCMSAMPLEFORMAT_FIXED_24:
998                if (df_representation != NULL &&
999                        *df_representation != SL_ANDROID_PCM_REPRESENTATION_SIGNED_INT) {
1000                    goto default_err;
1001                }
1002                break;
1003            case SL_PCMSAMPLEFORMAT_FIXED_32:
1004                if (df_representation != NULL
1005                        && *df_representation != SL_ANDROID_PCM_REPRESENTATION_SIGNED_INT
1006                        && *df_representation != SL_ANDROID_PCM_REPRESENTATION_FLOAT) {
1007                    goto default_err;
1008                }
1009                break;
1010                // others
1011            default:
1012            default_err:
1013                // this should have already been rejected by checkDataFormat
1014                SL_LOGE("Cannot create audio player: unsupported sample bit depth %u",
1015                        (SLuint32)df_pcm->bitsPerSample);
1016                return SL_RESULT_CONTENT_UNSUPPORTED;
1017            }
1018            switch (df_pcm->containerSize) {
1019            case 8:
1020            case 16:
1021            case 24:
1022            case 32:
1023                break;
1024                // others
1025            default:
1026                SL_LOGE("Cannot create audio player: unsupported container size %u",
1027                    (unsigned) df_pcm->containerSize);
1028                return SL_RESULT_CONTENT_UNSUPPORTED;
1029            }
1030            // df_pcm->channelMask: the earlier platform-independent check and the
1031            //     upcoming check by sles_to_android_channelMaskOut are sufficient
1032            switch (df_pcm->endianness) {
1033            case SL_BYTEORDER_LITTLEENDIAN:
1034                break;
1035            case SL_BYTEORDER_BIGENDIAN:
1036                SL_LOGE("Cannot create audio player: unsupported big-endian byte order");
1037                return SL_RESULT_CONTENT_UNSUPPORTED;
1038                // native is proposed but not yet in spec
1039            default:
1040                SL_LOGE("Cannot create audio player: unsupported byte order %u",
1041                    (unsigned) df_pcm->endianness);
1042                return SL_RESULT_CONTENT_UNSUPPORTED;
1043            }
1044            } //case SL_DATAFORMAT_PCM
1045            break;
1046        case SL_DATAFORMAT_MIME:
1047        case XA_DATAFORMAT_RAWIMAGE:
1048            SL_LOGE("Cannot create audio player with buffer queue data source "
1049                "without SL_DATAFORMAT_PCM format");
1050            return SL_RESULT_CONTENT_UNSUPPORTED;
1051        default:
1052            // invalid data format is detected earlier
1053            assert(false);
1054            return SL_RESULT_INTERNAL_ERROR;
1055        } // switch (sourceFormatType)
1056        } // case SL_DATALOCATOR_BUFFERQUEUE or SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE
1057        break;
1058    //------------------
1059    //   URI
1060    case SL_DATALOCATOR_URI:
1061        {
1062        SLDataLocator_URI *dl_uri = (SLDataLocator_URI *) pAudioSrc->pLocator;
1063        if (NULL == dl_uri->URI) {
1064            return SL_RESULT_PARAMETER_INVALID;
1065        }
1066        // URI format
1067        switch (sourceFormatType) {
1068        case SL_DATAFORMAT_MIME:
1069            break;
1070        case SL_DATAFORMAT_PCM:
1071        case XA_DATAFORMAT_RAWIMAGE:
1072            SL_LOGE("Cannot create audio player with SL_DATALOCATOR_URI data source without "
1073                "SL_DATAFORMAT_MIME format");
1074            return SL_RESULT_CONTENT_UNSUPPORTED;
1075        } // switch (sourceFormatType)
1076        // decoding format check
1077        if ((sinkLocatorType != SL_DATALOCATOR_OUTPUTMIX) &&
1078                !audioPlayer_isSupportedNonOutputMixSink(pAudioSnk)) {
1079            return SL_RESULT_CONTENT_UNSUPPORTED;
1080        }
1081        } // case SL_DATALOCATOR_URI
1082        break;
1083    //------------------
1084    //   File Descriptor
1085    case SL_DATALOCATOR_ANDROIDFD:
1086        {
1087        // fd is already non null
1088        switch (sourceFormatType) {
1089        case SL_DATAFORMAT_MIME:
1090            break;
1091        case SL_DATAFORMAT_PCM:
1092            // FIXME implement
1093            SL_LOGD("[ FIXME implement PCM FD data sources ]");
1094            break;
1095        case XA_DATAFORMAT_RAWIMAGE:
1096            SL_LOGE("Cannot create audio player with SL_DATALOCATOR_ANDROIDFD data source "
1097                "without SL_DATAFORMAT_MIME or SL_DATAFORMAT_PCM format");
1098            return SL_RESULT_CONTENT_UNSUPPORTED;
1099        default:
1100            // invalid data format is detected earlier
1101            assert(false);
1102            return SL_RESULT_INTERNAL_ERROR;
1103        } // switch (sourceFormatType)
1104        if ((sinkLocatorType != SL_DATALOCATOR_OUTPUTMIX) &&
1105                !audioPlayer_isSupportedNonOutputMixSink(pAudioSnk)) {
1106            return SL_RESULT_CONTENT_UNSUPPORTED;
1107        }
1108        } // case SL_DATALOCATOR_ANDROIDFD
1109        break;
1110    //------------------
1111    //   Stream
1112    case SL_DATALOCATOR_ANDROIDBUFFERQUEUE:
1113    {
1114        switch (sourceFormatType) {
1115        case SL_DATAFORMAT_MIME:
1116        {
1117            SLDataFormat_MIME *df_mime = (SLDataFormat_MIME *) pAudioSrc->pFormat;
1118            if (NULL == df_mime) {
1119                SL_LOGE("MIME type null invalid");
1120                return SL_RESULT_CONTENT_UNSUPPORTED;
1121            }
1122            SL_LOGD("source MIME is %s", (char*)df_mime->mimeType);
1123            switch(df_mime->containerType) {
1124            case SL_CONTAINERTYPE_MPEG_TS:
1125                if (strcasecmp((char*)df_mime->mimeType, (const char *)XA_ANDROID_MIME_MP2TS)) {
1126                    SL_LOGE("Invalid MIME (%s) for container SL_CONTAINERTYPE_MPEG_TS, expects %s",
1127                            (char*)df_mime->mimeType, XA_ANDROID_MIME_MP2TS);
1128                    return SL_RESULT_CONTENT_UNSUPPORTED;
1129                }
1130                if (pAudioPlayer->mAndroidObjType != AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE) {
1131                    SL_LOGE("Invalid sink for container SL_CONTAINERTYPE_MPEG_TS");
1132                    return SL_RESULT_PARAMETER_INVALID;
1133                }
1134                break;
1135            case SL_CONTAINERTYPE_RAW:
1136            case SL_CONTAINERTYPE_AAC:
1137                if (strcasecmp((char*)df_mime->mimeType, (const char *)SL_ANDROID_MIME_AACADTS) &&
1138                        strcasecmp((char*)df_mime->mimeType,
1139                                ANDROID_MIME_AACADTS_ANDROID_FRAMEWORK)) {
1140                    SL_LOGE("Invalid MIME (%s) for container type %d, expects %s",
1141                            (char*)df_mime->mimeType, df_mime->containerType,
1142                            SL_ANDROID_MIME_AACADTS);
1143                    return SL_RESULT_CONTENT_UNSUPPORTED;
1144                }
1145                if (pAudioPlayer->mAndroidObjType != AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE) {
1146                    SL_LOGE("Invalid sink for container SL_CONTAINERTYPE_AAC");
1147                    return SL_RESULT_PARAMETER_INVALID;
1148                }
1149                break;
1150            default:
1151                SL_LOGE("Cannot create player with SL_DATALOCATOR_ANDROIDBUFFERQUEUE data source "
1152                                        "that is not fed MPEG-2 TS data or AAC ADTS data");
1153                return SL_RESULT_CONTENT_UNSUPPORTED;
1154            }
1155        }
1156        break;
1157        default:
1158            SL_LOGE("Cannot create player with SL_DATALOCATOR_ANDROIDBUFFERQUEUE data source "
1159                    "without SL_DATAFORMAT_MIME format");
1160            return SL_RESULT_CONTENT_UNSUPPORTED;
1161        }
1162    }
1163    break; // case SL_DATALOCATOR_ANDROIDBUFFERQUEUE
1164    //------------------
1165    //   Address
1166    case SL_DATALOCATOR_ADDRESS:
1167    case SL_DATALOCATOR_IODEVICE:
1168    case SL_DATALOCATOR_OUTPUTMIX:
1169    case XA_DATALOCATOR_NATIVEDISPLAY:
1170    case SL_DATALOCATOR_MIDIBUFFERQUEUE:
1171        SL_LOGE("Cannot create audio player with data locator type 0x%x",
1172                (unsigned) sourceLocatorType);
1173        return SL_RESULT_CONTENT_UNSUPPORTED;
1174    default:
1175        SL_LOGE("Cannot create audio player with invalid data locator type 0x%x",
1176                (unsigned) sourceLocatorType);
1177        return SL_RESULT_PARAMETER_INVALID;
1178    }// switch (locatorType)
1179
1180    return SL_RESULT_SUCCESS;
1181}
1182
1183
1184//-----------------------------------------------------------------------------
1185// Callback associated with an AudioTrack of an SL ES AudioPlayer that gets its data
1186// from a buffer queue. This will not be called once the AudioTrack has been destroyed.
1187static void audioTrack_callBack_pullFromBuffQueue(int event, void* user, void *info) {
1188    CAudioPlayer *ap = (CAudioPlayer *)user;
1189
1190    if (!android::CallbackProtector::enterCbIfOk(ap->mCallbackProtector)) {
1191        // it is not safe to enter the callback (the track is about to go away)
1192        return;
1193    }
1194
1195    void * callbackPContext = NULL;
1196    switch(event) {
1197
1198    case android::AudioTrack::EVENT_MORE_DATA: {
1199        //SL_LOGV("received event EVENT_MORE_DATA from AudioTrack TID=%d", gettid());
1200        slPrefetchCallback prefetchCallback = NULL;
1201        void *prefetchContext = NULL;
1202        SLuint32 prefetchEvents = SL_PREFETCHEVENT_NONE;
1203        android::AudioTrack::Buffer* pBuff = (android::AudioTrack::Buffer*)info;
1204
1205        // retrieve data from the buffer queue
1206        interface_lock_exclusive(&ap->mBufferQueue);
1207
1208        if (ap->mBufferQueue.mCallbackPending) {
1209            // call callback with lock not held
1210            slBufferQueueCallback callback = ap->mBufferQueue.mCallback;
1211            if (NULL != callback) {
1212                callbackPContext = ap->mBufferQueue.mContext;
1213                interface_unlock_exclusive(&ap->mBufferQueue);
1214                (*callback)(&ap->mBufferQueue.mItf, callbackPContext);
1215                interface_lock_exclusive(&ap->mBufferQueue);
1216                ap->mBufferQueue.mCallbackPending = false;
1217            }
1218        }
1219
1220        if (ap->mBufferQueue.mState.count != 0) {
1221            //SL_LOGV("nbBuffers in queue = %u",ap->mBufferQueue.mState.count);
1222            assert(ap->mBufferQueue.mFront != ap->mBufferQueue.mRear);
1223
1224            BufferHeader *oldFront = ap->mBufferQueue.mFront;
1225            BufferHeader *newFront = &oldFront[1];
1226
1227            size_t availSource = oldFront->mSize - ap->mBufferQueue.mSizeConsumed;
1228            size_t availSink = pBuff->size;
1229            size_t bytesToCopy = availSource < availSink ? availSource : availSink;
1230            void *pSrc = (char *)oldFront->mBuffer + ap->mBufferQueue.mSizeConsumed;
1231            memcpy(pBuff->raw, pSrc, bytesToCopy);
1232
1233            if (bytesToCopy < availSource) {
1234                ap->mBufferQueue.mSizeConsumed += bytesToCopy;
1235                // pBuff->size is already equal to bytesToCopy in this case
1236            } else {
1237                // consumed an entire buffer, dequeue
1238                pBuff->size = bytesToCopy;
1239                ap->mBufferQueue.mSizeConsumed = 0;
1240                if (newFront ==
1241                        &ap->mBufferQueue.mArray
1242                            [ap->mBufferQueue.mNumBuffers + 1])
1243                {
1244                    newFront = ap->mBufferQueue.mArray;
1245                }
1246                ap->mBufferQueue.mFront = newFront;
1247
1248                ap->mBufferQueue.mState.count--;
1249                ap->mBufferQueue.mState.playIndex++;
1250                ap->mBufferQueue.mCallbackPending = true;
1251            }
1252        } else { // empty queue
1253            // signal no data available
1254            pBuff->size = 0;
1255
1256            // signal we're at the end of the content, but don't pause (see note in function)
1257            audioPlayer_dispatch_headAtEnd_lockPlay(ap, false /*set state to paused?*/, false);
1258
1259            // signal underflow to prefetch status itf
1260            if (IsInterfaceInitialized(&ap->mObject, MPH_PREFETCHSTATUS)) {
1261                ap->mPrefetchStatus.mStatus = SL_PREFETCHSTATUS_UNDERFLOW;
1262                ap->mPrefetchStatus.mLevel = 0;
1263                // callback or no callback?
1264                prefetchEvents = ap->mPrefetchStatus.mCallbackEventsMask &
1265                        (SL_PREFETCHEVENT_STATUSCHANGE | SL_PREFETCHEVENT_FILLLEVELCHANGE);
1266                if (SL_PREFETCHEVENT_NONE != prefetchEvents) {
1267                    prefetchCallback = ap->mPrefetchStatus.mCallback;
1268                    prefetchContext  = ap->mPrefetchStatus.mContext;
1269                }
1270            }
1271
1272            // stop the track so it restarts playing faster when new data is enqueued
1273            ap->mAudioTrack->stop();
1274        }
1275        interface_unlock_exclusive(&ap->mBufferQueue);
1276
1277        // notify client
1278        if (NULL != prefetchCallback) {
1279            assert(SL_PREFETCHEVENT_NONE != prefetchEvents);
1280            // spec requires separate callbacks for each event
1281            if (prefetchEvents & SL_PREFETCHEVENT_STATUSCHANGE) {
1282                (*prefetchCallback)(&ap->mPrefetchStatus.mItf, prefetchContext,
1283                        SL_PREFETCHEVENT_STATUSCHANGE);
1284            }
1285            if (prefetchEvents & SL_PREFETCHEVENT_FILLLEVELCHANGE) {
1286                (*prefetchCallback)(&ap->mPrefetchStatus.mItf, prefetchContext,
1287                        SL_PREFETCHEVENT_FILLLEVELCHANGE);
1288            }
1289        }
1290    }
1291    break;
1292
1293    case android::AudioTrack::EVENT_MARKER:
1294        //SL_LOGI("received event EVENT_MARKER from AudioTrack");
1295        audioTrack_handleMarker_lockPlay(ap);
1296        break;
1297
1298    case android::AudioTrack::EVENT_NEW_POS:
1299        //SL_LOGI("received event EVENT_NEW_POS from AudioTrack");
1300        audioTrack_handleNewPos_lockPlay(ap);
1301        break;
1302
1303    case android::AudioTrack::EVENT_UNDERRUN:
1304        //SL_LOGI("received event EVENT_UNDERRUN from AudioTrack");
1305        audioTrack_handleUnderrun_lockPlay(ap);
1306        break;
1307
1308    case android::AudioTrack::EVENT_BUFFER_END:
1309    case android::AudioTrack::EVENT_LOOP_END:
1310        // These are unexpected so fall through
1311    default:
1312        // FIXME where does the notification of SL_PLAYEVENT_HEADMOVING fit?
1313        SL_LOGE("Encountered unknown AudioTrack event %d for CAudioPlayer %p", event,
1314                (CAudioPlayer *)user);
1315        break;
1316    }
1317
1318    ap->mCallbackProtector->exitCb();
1319}
1320
1321
1322//-----------------------------------------------------------------------------
1323void android_audioPlayer_create(CAudioPlayer *pAudioPlayer) {
1324
1325    // pAudioPlayer->mAndroidObjType has been set in android_audioPlayer_checkSourceSink()
1326    // and if it was == INVALID_TYPE, then IEngine_CreateAudioPlayer would never call us
1327    assert(INVALID_TYPE != pAudioPlayer->mAndroidObjType);
1328
1329    // These initializations are in the same order as the field declarations in classes.h
1330
1331    // FIXME Consolidate initializations (many of these already in IEngine_CreateAudioPlayer)
1332    // mAndroidObjType: see above comment
1333    pAudioPlayer->mAndroidObjState = ANDROID_UNINITIALIZED;
1334    pAudioPlayer->mSessionId = android::AudioSystem::newAudioUniqueId();
1335
1336    // placeholder: not necessary yet as session ID lifetime doesn't extend beyond player
1337    // android::AudioSystem::acquireAudioSessionId(pAudioPlayer->mSessionId);
1338
1339    pAudioPlayer->mStreamType = ANDROID_DEFAULT_OUTPUT_STREAM_TYPE;
1340
1341    // mAudioTrack
1342    pAudioPlayer->mCallbackProtector = new android::CallbackProtector();
1343    // mAPLayer
1344    // mAuxEffect
1345
1346    pAudioPlayer->mAuxSendLevel = 0;
1347    pAudioPlayer->mAmplFromDirectLevel = 1.0f; // matches initial mDirectLevel value
1348    pAudioPlayer->mDeferredStart = false;
1349
1350    // This section re-initializes interface-specific fields that
1351    // can be set or used regardless of whether the interface is
1352    // exposed on the AudioPlayer or not
1353
1354    switch (pAudioPlayer->mAndroidObjType) {
1355    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
1356        pAudioPlayer->mPlaybackRate.mMinRate = AUDIOTRACK_MIN_PLAYBACKRATE_PERMILLE;
1357        pAudioPlayer->mPlaybackRate.mMaxRate = AUDIOTRACK_MAX_PLAYBACKRATE_PERMILLE;
1358        break;
1359    case AUDIOPLAYER_FROM_URIFD:
1360        pAudioPlayer->mPlaybackRate.mMinRate = MEDIAPLAYER_MIN_PLAYBACKRATE_PERMILLE;
1361        pAudioPlayer->mPlaybackRate.mMaxRate = MEDIAPLAYER_MAX_PLAYBACKRATE_PERMILLE;
1362        break;
1363    default:
1364        // use the default range
1365        break;
1366    }
1367
1368}
1369
1370
1371//-----------------------------------------------------------------------------
1372SLresult android_audioPlayer_setConfig(CAudioPlayer *ap, const SLchar *configKey,
1373        const void *pConfigValue, SLuint32 valueSize) {
1374
1375    SLresult result;
1376
1377    assert(NULL != ap && NULL != configKey && NULL != pConfigValue);
1378    if (strcmp((const char*)configKey, (const char*)SL_ANDROID_KEY_STREAM_TYPE) == 0) {
1379
1380        // stream type
1381        if (KEY_STREAM_TYPE_PARAMSIZE > valueSize) {
1382            SL_LOGE(ERROR_CONFIG_VALUESIZE_TOO_LOW);
1383            result = SL_RESULT_BUFFER_INSUFFICIENT;
1384        } else {
1385            result = audioPlayer_setStreamType(ap, *(SLuint32*)pConfigValue);
1386        }
1387
1388    } else {
1389        SL_LOGE(ERROR_CONFIG_UNKNOWN_KEY);
1390        result = SL_RESULT_PARAMETER_INVALID;
1391    }
1392
1393    return result;
1394}
1395
1396
1397//-----------------------------------------------------------------------------
1398SLresult android_audioPlayer_getConfig(CAudioPlayer* ap, const SLchar *configKey,
1399        SLuint32* pValueSize, void *pConfigValue) {
1400
1401    SLresult result;
1402
1403    assert(NULL != ap && NULL != configKey && NULL != pValueSize);
1404    if (strcmp((const char*)configKey, (const char*)SL_ANDROID_KEY_STREAM_TYPE) == 0) {
1405
1406        // stream type
1407        if (NULL == pConfigValue) {
1408            result = SL_RESULT_SUCCESS;
1409        } else if (KEY_STREAM_TYPE_PARAMSIZE > *pValueSize) {
1410            SL_LOGE(ERROR_CONFIG_VALUESIZE_TOO_LOW);
1411            result = SL_RESULT_BUFFER_INSUFFICIENT;
1412        } else {
1413            result = audioPlayer_getStreamType(ap, (SLint32*)pConfigValue);
1414        }
1415        *pValueSize = KEY_STREAM_TYPE_PARAMSIZE;
1416
1417    } else {
1418        SL_LOGE(ERROR_CONFIG_UNKNOWN_KEY);
1419        result = SL_RESULT_PARAMETER_INVALID;
1420    }
1421
1422    return result;
1423}
1424
1425
1426// Called from android_audioPlayer_realize for a PCM buffer queue player
1427// to determine if it can use a fast track.
1428static bool canUseFastTrack(CAudioPlayer *pAudioPlayer)
1429{
1430    assert(pAudioPlayer->mAndroidObjType == AUDIOPLAYER_FROM_PCM_BUFFERQUEUE);
1431
1432    // no need to check the buffer queue size, application side
1433    // double-buffering (and more) is not a requirement for using fast tracks
1434
1435    // Check a blacklist of interfaces that are incompatible with fast tracks.
1436    // The alternative, to check a whitelist of compatible interfaces, is
1437    // more maintainable but is too slow.  As a compromise, in a debug build
1438    // we use both methods and warn if they produce different results.
1439    // In release builds, we only use the blacklist method.
1440    // If a blacklisted interface is added after realization using
1441    // DynamicInterfaceManagement::AddInterface,
1442    // then this won't be detected but the interface will be ineffective.
1443    bool blacklistResult = true;
1444    static const unsigned blacklist[] = {
1445        MPH_BASSBOOST,
1446        MPH_EFFECTSEND,
1447        MPH_ENVIRONMENTALREVERB,
1448        MPH_EQUALIZER,
1449        MPH_PLAYBACKRATE,
1450        MPH_PRESETREVERB,
1451        MPH_VIRTUALIZER,
1452        MPH_ANDROIDEFFECT,
1453        MPH_ANDROIDEFFECTSEND,
1454        // FIXME The problem with a blacklist is remembering to add new interfaces here
1455    };
1456    for (unsigned i = 0; i < sizeof(blacklist)/sizeof(blacklist[0]); ++i) {
1457        if (IsInterfaceInitialized(&pAudioPlayer->mObject, blacklist[i])) {
1458            blacklistResult = false;
1459            break;
1460        }
1461    }
1462#if LOG_NDEBUG == 0
1463    bool whitelistResult = true;
1464    static const unsigned whitelist[] = {
1465        MPH_BUFFERQUEUE,
1466        MPH_DYNAMICINTERFACEMANAGEMENT,
1467        MPH_METADATAEXTRACTION,
1468        MPH_MUTESOLO,
1469        MPH_OBJECT,
1470        MPH_PLAY,
1471        MPH_PREFETCHSTATUS,
1472        MPH_VOLUME,
1473        MPH_ANDROIDCONFIGURATION,
1474        MPH_ANDROIDSIMPLEBUFFERQUEUE,
1475        MPH_ANDROIDBUFFERQUEUESOURCE,
1476    };
1477    for (unsigned mph = MPH_MIN; mph < MPH_MAX; ++mph) {
1478        for (unsigned i = 0; i < sizeof(whitelist)/sizeof(whitelist[0]); ++i) {
1479            if (mph == whitelist[i]) {
1480                goto compatible;
1481            }
1482        }
1483        if (IsInterfaceInitialized(&pAudioPlayer->mObject, mph)) {
1484            whitelistResult = false;
1485            break;
1486        }
1487compatible: ;
1488    }
1489    if (whitelistResult != blacklistResult) {
1490        ALOGW("whitelistResult != blacklistResult");
1491        // and use blacklistResult below
1492    }
1493#endif
1494    return blacklistResult;
1495}
1496
1497
1498//-----------------------------------------------------------------------------
1499// FIXME abstract out the diff between CMediaPlayer and CAudioPlayer
1500SLresult android_audioPlayer_realize(CAudioPlayer *pAudioPlayer, SLboolean async) {
1501
1502    SLresult result = SL_RESULT_SUCCESS;
1503    SL_LOGV("Realize pAudioPlayer=%p", pAudioPlayer);
1504
1505    AudioPlayback_Parameters app;
1506    app.sessionId = pAudioPlayer->mSessionId;
1507    app.streamType = pAudioPlayer->mStreamType;
1508
1509    switch (pAudioPlayer->mAndroidObjType) {
1510
1511    //-----------------------------------
1512    // AudioTrack
1513    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
1514        {
1515        // initialize platform-specific CAudioPlayer fields
1516
1517        SLDataLocator_BufferQueue *dl_bq = (SLDataLocator_BufferQueue *)
1518                pAudioPlayer->mDynamicSource.mDataSource;
1519        SLDataFormat_PCM *df_pcm = (SLDataFormat_PCM *)
1520                pAudioPlayer->mDynamicSource.mDataSource->pFormat;
1521
1522        uint32_t sampleRate = sles_to_android_sampleRate(df_pcm->samplesPerSec);
1523
1524        audio_output_flags_t policy;
1525        if (canUseFastTrack(pAudioPlayer)) {
1526            policy = AUDIO_OUTPUT_FLAG_FAST;
1527        } else {
1528            policy = AUDIO_OUTPUT_FLAG_NONE;
1529        }
1530
1531        pAudioPlayer->mAudioTrack = new android::AudioTrack(
1532                pAudioPlayer->mStreamType,                           // streamType
1533                sampleRate,                                          // sampleRate
1534                sles_to_android_sampleFormat(df_pcm),                // format
1535                sles_to_android_channelMaskOut(df_pcm->numChannels, df_pcm->channelMask),
1536                                                                     // channel mask
1537                0,                                                   // frameCount
1538                policy,                                              // flags
1539                audioTrack_callBack_pullFromBuffQueue,               // callback
1540                (void *) pAudioPlayer,                               // user
1541                0,     // FIXME find appropriate frame count         // notificationFrame
1542                pAudioPlayer->mSessionId);
1543        android::status_t status = pAudioPlayer->mAudioTrack->initCheck();
1544        if (status != android::NO_ERROR) {
1545            SL_LOGE("AudioTrack::initCheck status %u", status);
1546            // FIXME should return a more specific result depending on status
1547            result = SL_RESULT_CONTENT_UNSUPPORTED;
1548            pAudioPlayer->mAudioTrack.clear();
1549            return result;
1550        }
1551
1552        // initialize platform-independent CAudioPlayer fields
1553
1554        pAudioPlayer->mNumChannels = df_pcm->numChannels;
1555        pAudioPlayer->mSampleRateMilliHz = df_pcm->samplesPerSec; // Note: bad field name in SL ES
1556
1557        // This use case does not have a separate "prepare" step
1558        pAudioPlayer->mAndroidObjState = ANDROID_READY;
1559        }
1560        break;
1561
1562    //-----------------------------------
1563    // MediaPlayer
1564    case AUDIOPLAYER_FROM_URIFD: {
1565        pAudioPlayer->mAPlayer = new android::LocAVPlayer(&app, false /*hasVideo*/);
1566        pAudioPlayer->mAPlayer->init(sfplayer_handlePrefetchEvent,
1567                        (void*)pAudioPlayer /*notifUSer*/);
1568
1569        switch (pAudioPlayer->mDataSource.mLocator.mLocatorType) {
1570            case SL_DATALOCATOR_URI: {
1571                // The legacy implementation ran Stagefright within the application process, and
1572                // so allowed local pathnames specified by URI that were openable by
1573                // the application but were not openable by mediaserver.
1574                // The current implementation runs Stagefright (mostly) within mediaserver,
1575                // which runs as a different UID and likely a different current working directory.
1576                // For backwards compatibility with any applications which may have relied on the
1577                // previous behavior, we convert an openable file URI into an FD.
1578                // Note that unlike SL_DATALOCATOR_ANDROIDFD, this FD is owned by us
1579                // and so we close it as soon as we've passed it (via Binder dup) to mediaserver.
1580                const char *uri = (const char *)pAudioPlayer->mDataSource.mLocator.mURI.URI;
1581                if (!isDistantProtocol(uri)) {
1582                    // don't touch the original uri, we may need it later
1583                    const char *pathname = uri;
1584                    // skip over an optional leading file:// prefix
1585                    if (!strncasecmp(pathname, "file://", 7)) {
1586                        pathname += 7;
1587                    }
1588                    // attempt to open it as a file using the application's credentials
1589                    int fd = ::open(pathname, O_RDONLY);
1590                    if (fd >= 0) {
1591                        // if open is successful, then check to see if it's a regular file
1592                        struct stat statbuf;
1593                        if (!::fstat(fd, &statbuf) && S_ISREG(statbuf.st_mode)) {
1594                            // treat similarly to an FD data locator, but
1595                            // let setDataSource take responsibility for closing fd
1596                            pAudioPlayer->mAPlayer->setDataSource(fd, 0, statbuf.st_size, true);
1597                            break;
1598                        }
1599                        // we were able to open it, but it's not a file, so let mediaserver try
1600                        (void) ::close(fd);
1601                    }
1602                }
1603                // if either the URI didn't look like a file, or open failed, or not a file
1604                pAudioPlayer->mAPlayer->setDataSource(uri);
1605                } break;
1606            case SL_DATALOCATOR_ANDROIDFD: {
1607                int64_t offset = (int64_t)pAudioPlayer->mDataSource.mLocator.mFD.offset;
1608                pAudioPlayer->mAPlayer->setDataSource(
1609                        (int)pAudioPlayer->mDataSource.mLocator.mFD.fd,
1610                        offset == SL_DATALOCATOR_ANDROIDFD_USE_FILE_SIZE ?
1611                                (int64_t)PLAYER_FD_FIND_FILE_SIZE : offset,
1612                        (int64_t)pAudioPlayer->mDataSource.mLocator.mFD.length);
1613                }
1614                break;
1615            default:
1616                SL_LOGE(ERROR_PLAYERREALIZE_UNKNOWN_DATASOURCE_LOCATOR);
1617                break;
1618        }
1619
1620        }
1621        break;
1622
1623    //-----------------------------------
1624    // StreamPlayer
1625    case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE: {
1626        android::StreamPlayer* splr = new android::StreamPlayer(&app, false /*hasVideo*/,
1627                &pAudioPlayer->mAndroidBufferQueue, pAudioPlayer->mCallbackProtector);
1628        pAudioPlayer->mAPlayer = splr;
1629        splr->init(sfplayer_handlePrefetchEvent, (void*)pAudioPlayer);
1630        }
1631        break;
1632
1633    //-----------------------------------
1634    // AudioToCbRenderer
1635    case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE: {
1636        android::AudioToCbRenderer* decoder = new android::AudioToCbRenderer(&app);
1637        pAudioPlayer->mAPlayer = decoder;
1638        // configures the callback for the sink buffer queue
1639        decoder->setDataPushListener(adecoder_writeToBufferQueue, pAudioPlayer);
1640        // configures the callback for the notifications coming from the SF code
1641        decoder->init(sfplayer_handlePrefetchEvent, (void*)pAudioPlayer);
1642
1643        switch (pAudioPlayer->mDataSource.mLocator.mLocatorType) {
1644        case SL_DATALOCATOR_URI:
1645            decoder->setDataSource(
1646                    (const char*)pAudioPlayer->mDataSource.mLocator.mURI.URI);
1647            break;
1648        case SL_DATALOCATOR_ANDROIDFD: {
1649            int64_t offset = (int64_t)pAudioPlayer->mDataSource.mLocator.mFD.offset;
1650            decoder->setDataSource(
1651                    (int)pAudioPlayer->mDataSource.mLocator.mFD.fd,
1652                    offset == SL_DATALOCATOR_ANDROIDFD_USE_FILE_SIZE ?
1653                            (int64_t)PLAYER_FD_FIND_FILE_SIZE : offset,
1654                            (int64_t)pAudioPlayer->mDataSource.mLocator.mFD.length);
1655            }
1656            break;
1657        default:
1658            SL_LOGE(ERROR_PLAYERREALIZE_UNKNOWN_DATASOURCE_LOCATOR);
1659            break;
1660        }
1661
1662        }
1663        break;
1664
1665    //-----------------------------------
1666    // AacBqToPcmCbRenderer
1667    case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE: {
1668        android::AacBqToPcmCbRenderer* bqtobq = new android::AacBqToPcmCbRenderer(&app,
1669                &pAudioPlayer->mAndroidBufferQueue);
1670        // configures the callback for the sink buffer queue
1671        bqtobq->setDataPushListener(adecoder_writeToBufferQueue, pAudioPlayer);
1672        pAudioPlayer->mAPlayer = bqtobq;
1673        // configures the callback for the notifications coming from the SF code,
1674        // but also implicitly configures the AndroidBufferQueue from which ADTS data is read
1675        pAudioPlayer->mAPlayer->init(sfplayer_handlePrefetchEvent, (void*)pAudioPlayer);
1676        }
1677        break;
1678
1679    //-----------------------------------
1680    default:
1681        SL_LOGE(ERROR_PLAYERREALIZE_UNEXPECTED_OBJECT_TYPE_D, pAudioPlayer->mAndroidObjType);
1682        result = SL_RESULT_INTERNAL_ERROR;
1683        break;
1684    }
1685
1686    // proceed with effect initialization
1687    // initialize EQ
1688    // FIXME use a table of effect descriptors when adding support for more effects
1689    if (memcmp(SL_IID_EQUALIZER, &pAudioPlayer->mEqualizer.mEqDescriptor.type,
1690            sizeof(effect_uuid_t)) == 0) {
1691        SL_LOGV("Need to initialize EQ for AudioPlayer=%p", pAudioPlayer);
1692        android_eq_init(pAudioPlayer->mSessionId, &pAudioPlayer->mEqualizer);
1693    }
1694    // initialize BassBoost
1695    if (memcmp(SL_IID_BASSBOOST, &pAudioPlayer->mBassBoost.mBassBoostDescriptor.type,
1696            sizeof(effect_uuid_t)) == 0) {
1697        SL_LOGV("Need to initialize BassBoost for AudioPlayer=%p", pAudioPlayer);
1698        android_bb_init(pAudioPlayer->mSessionId, &pAudioPlayer->mBassBoost);
1699    }
1700    // initialize Virtualizer
1701    if (memcmp(SL_IID_VIRTUALIZER, &pAudioPlayer->mVirtualizer.mVirtualizerDescriptor.type,
1702               sizeof(effect_uuid_t)) == 0) {
1703        SL_LOGV("Need to initialize Virtualizer for AudioPlayer=%p", pAudioPlayer);
1704        android_virt_init(pAudioPlayer->mSessionId, &pAudioPlayer->mVirtualizer);
1705    }
1706
1707    // initialize EffectSend
1708    // FIXME initialize EffectSend
1709
1710    return result;
1711}
1712
1713
1714//-----------------------------------------------------------------------------
1715/**
1716 * Called with a lock on AudioPlayer, and blocks until safe to destroy
1717 */
1718SLresult android_audioPlayer_preDestroy(CAudioPlayer *pAudioPlayer) {
1719    SL_LOGD("android_audioPlayer_preDestroy(%p)", pAudioPlayer);
1720    SLresult result = SL_RESULT_SUCCESS;
1721
1722    bool disableCallbacksBeforePreDestroy;
1723    switch (pAudioPlayer->mAndroidObjType) {
1724    // Not yet clear why this order is important, but it reduces detected deadlocks
1725    case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1726        disableCallbacksBeforePreDestroy = true;
1727        break;
1728    // Use the old behavior for all other use cases until proven
1729    // case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1730    default:
1731        disableCallbacksBeforePreDestroy = false;
1732        break;
1733    }
1734
1735    if (disableCallbacksBeforePreDestroy) {
1736        object_unlock_exclusive(&pAudioPlayer->mObject);
1737        if (pAudioPlayer->mCallbackProtector != 0) {
1738            pAudioPlayer->mCallbackProtector->requestCbExitAndWait();
1739        }
1740        object_lock_exclusive(&pAudioPlayer->mObject);
1741    }
1742
1743    if (pAudioPlayer->mAPlayer != 0) {
1744        pAudioPlayer->mAPlayer->preDestroy();
1745    }
1746    SL_LOGD("android_audioPlayer_preDestroy(%p) after mAPlayer->preDestroy()", pAudioPlayer);
1747
1748    if (!disableCallbacksBeforePreDestroy) {
1749        object_unlock_exclusive(&pAudioPlayer->mObject);
1750        if (pAudioPlayer->mCallbackProtector != 0) {
1751            pAudioPlayer->mCallbackProtector->requestCbExitAndWait();
1752        }
1753        object_lock_exclusive(&pAudioPlayer->mObject);
1754    }
1755
1756    return result;
1757}
1758
1759
1760//-----------------------------------------------------------------------------
1761SLresult android_audioPlayer_destroy(CAudioPlayer *pAudioPlayer) {
1762    SLresult result = SL_RESULT_SUCCESS;
1763    SL_LOGV("android_audioPlayer_destroy(%p)", pAudioPlayer);
1764    switch (pAudioPlayer->mAndroidObjType) {
1765
1766    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
1767        // We own the audio track for PCM buffer queue players
1768        if (pAudioPlayer->mAudioTrack != 0) {
1769            pAudioPlayer->mAudioTrack->stop();
1770            // Note that there may still be another reference in post-unlock phase of SetPlayState
1771            pAudioPlayer->mAudioTrack.clear();
1772        }
1773        break;
1774
1775    case AUDIOPLAYER_FROM_URIFD:     // intended fall-through
1776    case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:    // intended fall-through
1777    case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE: // intended fall-through
1778    case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1779        pAudioPlayer->mAPlayer.clear();
1780        break;
1781    //-----------------------------------
1782    default:
1783        SL_LOGE(ERROR_PLAYERDESTROY_UNEXPECTED_OBJECT_TYPE_D, pAudioPlayer->mAndroidObjType);
1784        result = SL_RESULT_INTERNAL_ERROR;
1785        break;
1786    }
1787
1788    // placeholder: not necessary yet as session ID lifetime doesn't extend beyond player
1789    // android::AudioSystem::releaseAudioSessionId(pAudioPlayer->mSessionId);
1790
1791    pAudioPlayer->mCallbackProtector.clear();
1792
1793    // explicit destructor
1794    pAudioPlayer->mAudioTrack.~sp();
1795    // note that SetPlayState(PLAYING) may still hold a reference
1796    pAudioPlayer->mCallbackProtector.~sp();
1797    pAudioPlayer->mAuxEffect.~sp();
1798    pAudioPlayer->mAPlayer.~sp();
1799
1800    return result;
1801}
1802
1803
1804//-----------------------------------------------------------------------------
1805SLresult android_audioPlayer_setPlaybackRateAndConstraints(CAudioPlayer *ap, SLpermille rate,
1806        SLuint32 constraints) {
1807    SLresult result = SL_RESULT_SUCCESS;
1808    switch(ap->mAndroidObjType) {
1809    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE: {
1810        // these asserts were already checked by the platform-independent layer
1811        assert((AUDIOTRACK_MIN_PLAYBACKRATE_PERMILLE <= rate) &&
1812                (rate <= AUDIOTRACK_MAX_PLAYBACKRATE_PERMILLE));
1813        assert(constraints & SL_RATEPROP_NOPITCHCORAUDIO);
1814        // get the content sample rate
1815        uint32_t contentRate = sles_to_android_sampleRate(ap->mSampleRateMilliHz);
1816        // apply the SL ES playback rate on the AudioTrack as a factor of its content sample rate
1817        if (ap->mAudioTrack != 0) {
1818            ap->mAudioTrack->setSampleRate(contentRate * (rate/1000.0f));
1819        }
1820        }
1821        break;
1822    case AUDIOPLAYER_FROM_URIFD: {
1823        assert((MEDIAPLAYER_MIN_PLAYBACKRATE_PERMILLE <= rate) &&
1824                        (rate <= MEDIAPLAYER_MAX_PLAYBACKRATE_PERMILLE));
1825        assert(constraints & SL_RATEPROP_NOPITCHCORAUDIO);
1826        // apply the SL ES playback rate on the GenericPlayer
1827        if (ap->mAPlayer != 0) {
1828            ap->mAPlayer->setPlaybackRate((int16_t)rate);
1829        }
1830        }
1831        break;
1832
1833    default:
1834        SL_LOGE("Unexpected object type %d", ap->mAndroidObjType);
1835        result = SL_RESULT_FEATURE_UNSUPPORTED;
1836        break;
1837    }
1838    return result;
1839}
1840
1841
1842//-----------------------------------------------------------------------------
1843// precondition
1844//  called with no lock held
1845//  ap != NULL
1846//  pItemCount != NULL
1847SLresult android_audioPlayer_metadata_getItemCount(CAudioPlayer *ap, SLuint32 *pItemCount) {
1848    if (ap->mAPlayer == 0) {
1849        return SL_RESULT_PARAMETER_INVALID;
1850    }
1851    switch(ap->mAndroidObjType) {
1852      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1853      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1854        {
1855            android::AudioSfDecoder* decoder =
1856                    static_cast<android::AudioSfDecoder*>(ap->mAPlayer.get());
1857            *pItemCount = decoder->getPcmFormatKeyCount();
1858        }
1859        break;
1860      default:
1861        *pItemCount = 0;
1862        break;
1863    }
1864    return SL_RESULT_SUCCESS;
1865}
1866
1867
1868//-----------------------------------------------------------------------------
1869// precondition
1870//  called with no lock held
1871//  ap != NULL
1872//  pKeySize != NULL
1873SLresult android_audioPlayer_metadata_getKeySize(CAudioPlayer *ap,
1874        SLuint32 index, SLuint32 *pKeySize) {
1875    if (ap->mAPlayer == 0) {
1876        return SL_RESULT_PARAMETER_INVALID;
1877    }
1878    SLresult res = SL_RESULT_SUCCESS;
1879    switch(ap->mAndroidObjType) {
1880      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1881      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1882        {
1883            android::AudioSfDecoder* decoder =
1884                    static_cast<android::AudioSfDecoder*>(ap->mAPlayer.get());
1885            SLuint32 keyNameSize = 0;
1886            if (!decoder->getPcmFormatKeySize(index, &keyNameSize)) {
1887                res = SL_RESULT_PARAMETER_INVALID;
1888            } else {
1889                // *pKeySize is the size of the region used to store the key name AND
1890                //   the information about the key (size, lang, encoding)
1891                *pKeySize = keyNameSize + sizeof(SLMetadataInfo);
1892            }
1893        }
1894        break;
1895      default:
1896        *pKeySize = 0;
1897        res = SL_RESULT_PARAMETER_INVALID;
1898        break;
1899    }
1900    return res;
1901}
1902
1903
1904//-----------------------------------------------------------------------------
1905// precondition
1906//  called with no lock held
1907//  ap != NULL
1908//  pKey != NULL
1909SLresult android_audioPlayer_metadata_getKey(CAudioPlayer *ap,
1910        SLuint32 index, SLuint32 size, SLMetadataInfo *pKey) {
1911    if (ap->mAPlayer == 0) {
1912        return SL_RESULT_PARAMETER_INVALID;
1913    }
1914    SLresult res = SL_RESULT_SUCCESS;
1915    switch(ap->mAndroidObjType) {
1916      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1917      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1918        {
1919            android::AudioSfDecoder* decoder =
1920                    static_cast<android::AudioSfDecoder*>(ap->mAPlayer.get());
1921            if ((size < sizeof(SLMetadataInfo) ||
1922                    (!decoder->getPcmFormatKeyName(index, size - sizeof(SLMetadataInfo),
1923                            (char*)pKey->data)))) {
1924                res = SL_RESULT_PARAMETER_INVALID;
1925            } else {
1926                // successfully retrieved the key value, update the other fields
1927                pKey->encoding = SL_CHARACTERENCODING_UTF8;
1928                memcpy((char *) pKey->langCountry, "en", 3);
1929                pKey->size = strlen((char*)pKey->data) + 1;
1930            }
1931        }
1932        break;
1933      default:
1934        res = SL_RESULT_PARAMETER_INVALID;
1935        break;
1936    }
1937    return res;
1938}
1939
1940
1941//-----------------------------------------------------------------------------
1942// precondition
1943//  called with no lock held
1944//  ap != NULL
1945//  pValueSize != NULL
1946SLresult android_audioPlayer_metadata_getValueSize(CAudioPlayer *ap,
1947        SLuint32 index, SLuint32 *pValueSize) {
1948    if (ap->mAPlayer == 0) {
1949        return SL_RESULT_PARAMETER_INVALID;
1950    }
1951    SLresult res = SL_RESULT_SUCCESS;
1952    switch(ap->mAndroidObjType) {
1953      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1954      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1955        {
1956            android::AudioSfDecoder* decoder =
1957                    static_cast<android::AudioSfDecoder*>(ap->mAPlayer.get());
1958            SLuint32 valueSize = 0;
1959            if (!decoder->getPcmFormatValueSize(index, &valueSize)) {
1960                res = SL_RESULT_PARAMETER_INVALID;
1961            } else {
1962                // *pValueSize is the size of the region used to store the key value AND
1963                //   the information about the value (size, lang, encoding)
1964                *pValueSize = valueSize + sizeof(SLMetadataInfo);
1965            }
1966        }
1967        break;
1968      default:
1969          *pValueSize = 0;
1970          res = SL_RESULT_PARAMETER_INVALID;
1971          break;
1972    }
1973    return res;
1974}
1975
1976
1977//-----------------------------------------------------------------------------
1978// precondition
1979//  called with no lock held
1980//  ap != NULL
1981//  pValue != NULL
1982SLresult android_audioPlayer_metadata_getValue(CAudioPlayer *ap,
1983        SLuint32 index, SLuint32 size, SLMetadataInfo *pValue) {
1984    if (ap->mAPlayer == 0) {
1985        return SL_RESULT_PARAMETER_INVALID;
1986    }
1987    SLresult res = SL_RESULT_SUCCESS;
1988    switch(ap->mAndroidObjType) {
1989      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1990      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1991        {
1992            android::AudioSfDecoder* decoder =
1993                    static_cast<android::AudioSfDecoder*>(ap->mAPlayer.get());
1994            pValue->encoding = SL_CHARACTERENCODING_BINARY;
1995            memcpy((char *) pValue->langCountry, "en", 3); // applicable here?
1996            SLuint32 valueSize = 0;
1997            if ((size < sizeof(SLMetadataInfo)
1998                    || (!decoder->getPcmFormatValueSize(index, &valueSize))
1999                    || (!decoder->getPcmFormatKeyValue(index, size - sizeof(SLMetadataInfo),
2000                            (SLuint32*)pValue->data)))) {
2001                res = SL_RESULT_PARAMETER_INVALID;
2002            } else {
2003                pValue->size = valueSize;
2004            }
2005        }
2006        break;
2007      default:
2008        res = SL_RESULT_PARAMETER_INVALID;
2009        break;
2010    }
2011    return res;
2012}
2013
2014//-----------------------------------------------------------------------------
2015// preconditions
2016//  ap != NULL
2017//  mutex is locked
2018//  play state has changed
2019void android_audioPlayer_setPlayState(CAudioPlayer *ap) {
2020
2021    SLuint32 playState = ap->mPlay.mState;
2022    AndroidObjectState objState = ap->mAndroidObjState;
2023
2024    switch(ap->mAndroidObjType) {
2025    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
2026        switch (playState) {
2027        case SL_PLAYSTATE_STOPPED:
2028            SL_LOGV("setting AudioPlayer to SL_PLAYSTATE_STOPPED");
2029            if (ap->mAudioTrack != 0) {
2030                ap->mAudioTrack->stop();
2031            }
2032            break;
2033        case SL_PLAYSTATE_PAUSED:
2034            SL_LOGV("setting AudioPlayer to SL_PLAYSTATE_PAUSED");
2035            if (ap->mAudioTrack != 0) {
2036                ap->mAudioTrack->pause();
2037            }
2038            break;
2039        case SL_PLAYSTATE_PLAYING:
2040            SL_LOGV("setting AudioPlayer to SL_PLAYSTATE_PLAYING");
2041            if (ap->mAudioTrack != 0) {
2042                // instead of ap->mAudioTrack->start();
2043                ap->mDeferredStart = true;
2044            }
2045            break;
2046        default:
2047            // checked by caller, should not happen
2048            break;
2049        }
2050        break;
2051
2052    case AUDIOPLAYER_FROM_URIFD:      // intended fall-through
2053    case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:     // intended fall-through
2054    case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:  // intended fall-through
2055    case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
2056        // FIXME report and use the return code to the lock mechanism, which is where play state
2057        //   changes are updated (see object_unlock_exclusive_attributes())
2058        aplayer_setPlayState(ap->mAPlayer, playState, &ap->mAndroidObjState);
2059        break;
2060    default:
2061        SL_LOGE(ERROR_PLAYERSETPLAYSTATE_UNEXPECTED_OBJECT_TYPE_D, ap->mAndroidObjType);
2062        break;
2063    }
2064}
2065
2066
2067//-----------------------------------------------------------------------------
2068// call when either player event flags, marker position, or position update period changes
2069void android_audioPlayer_usePlayEventMask(CAudioPlayer *ap) {
2070    IPlay *pPlayItf = &ap->mPlay;
2071    SLuint32 eventFlags = pPlayItf->mEventFlags;
2072    /*switch(ap->mAndroidObjType) {
2073    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:*/
2074
2075    if (ap->mAPlayer != 0) {
2076        assert(ap->mAudioTrack == 0);
2077        ap->mAPlayer->setPlayEvents((int32_t) eventFlags, (int32_t) pPlayItf->mMarkerPosition,
2078                (int32_t) pPlayItf->mPositionUpdatePeriod);
2079        return;
2080    }
2081
2082    if (ap->mAudioTrack == 0) {
2083        return;
2084    }
2085
2086    if (eventFlags & SL_PLAYEVENT_HEADATMARKER) {
2087        ap->mAudioTrack->setMarkerPosition((uint32_t)((((int64_t)pPlayItf->mMarkerPosition
2088                * sles_to_android_sampleRate(ap->mSampleRateMilliHz)))/1000));
2089    } else {
2090        // clear marker
2091        ap->mAudioTrack->setMarkerPosition(0);
2092    }
2093
2094    if (eventFlags & SL_PLAYEVENT_HEADATNEWPOS) {
2095         ap->mAudioTrack->setPositionUpdatePeriod(
2096                (uint32_t)((((int64_t)pPlayItf->mPositionUpdatePeriod
2097                * sles_to_android_sampleRate(ap->mSampleRateMilliHz)))/1000));
2098    } else {
2099        // clear periodic update
2100        ap->mAudioTrack->setPositionUpdatePeriod(0);
2101    }
2102
2103    if (eventFlags & SL_PLAYEVENT_HEADATEND) {
2104        // nothing to do for SL_PLAYEVENT_HEADATEND, callback event will be checked against mask
2105    }
2106
2107    if (eventFlags & SL_PLAYEVENT_HEADMOVING) {
2108        // FIXME support SL_PLAYEVENT_HEADMOVING
2109        SL_LOGD("[ FIXME: IPlay_SetCallbackEventsMask(SL_PLAYEVENT_HEADMOVING) on an "
2110            "SL_OBJECTID_AUDIOPLAYER to be implemented ]");
2111    }
2112    if (eventFlags & SL_PLAYEVENT_HEADSTALLED) {
2113        // nothing to do for SL_PLAYEVENT_HEADSTALLED, callback event will be checked against mask
2114    }
2115
2116}
2117
2118
2119//-----------------------------------------------------------------------------
2120SLresult android_audioPlayer_getDuration(IPlay *pPlayItf, SLmillisecond *pDurMsec) {
2121    CAudioPlayer *ap = (CAudioPlayer *)pPlayItf->mThis;
2122    switch(ap->mAndroidObjType) {
2123
2124      case AUDIOPLAYER_FROM_URIFD:  // intended fall-through
2125      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE: {
2126        int32_t durationMsec = ANDROID_UNKNOWN_TIME;
2127        if (ap->mAPlayer != 0) {
2128            ap->mAPlayer->getDurationMsec(&durationMsec);
2129        }
2130        *pDurMsec = durationMsec == ANDROID_UNKNOWN_TIME ? SL_TIME_UNKNOWN : durationMsec;
2131        break;
2132      }
2133
2134      case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE: // intended fall-through
2135      case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
2136      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
2137      default: {
2138        *pDurMsec = SL_TIME_UNKNOWN;
2139      }
2140    }
2141    return SL_RESULT_SUCCESS;
2142}
2143
2144
2145//-----------------------------------------------------------------------------
2146void android_audioPlayer_getPosition(IPlay *pPlayItf, SLmillisecond *pPosMsec) {
2147    CAudioPlayer *ap = (CAudioPlayer *)pPlayItf->mThis;
2148    switch(ap->mAndroidObjType) {
2149
2150      case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
2151        if ((ap->mSampleRateMilliHz == UNKNOWN_SAMPLERATE) || (ap->mAudioTrack == 0)) {
2152            *pPosMsec = 0;
2153        } else {
2154            uint32_t positionInFrames;
2155            ap->mAudioTrack->getPosition(&positionInFrames);
2156            *pPosMsec = ((int64_t)positionInFrames * 1000) /
2157                    sles_to_android_sampleRate(ap->mSampleRateMilliHz);
2158        }
2159        break;
2160
2161      case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:    // intended fall-through
2162      case AUDIOPLAYER_FROM_URIFD:
2163      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
2164      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE: {
2165        int32_t posMsec = ANDROID_UNKNOWN_TIME;
2166        if (ap->mAPlayer != 0) {
2167            ap->mAPlayer->getPositionMsec(&posMsec);
2168        }
2169        *pPosMsec = posMsec == ANDROID_UNKNOWN_TIME ? 0 : posMsec;
2170        break;
2171      }
2172
2173      default:
2174        *pPosMsec = 0;
2175    }
2176}
2177
2178
2179//-----------------------------------------------------------------------------
2180SLresult android_audioPlayer_seek(CAudioPlayer *ap, SLmillisecond posMsec) {
2181    SLresult result = SL_RESULT_SUCCESS;
2182
2183    switch(ap->mAndroidObjType) {
2184
2185      case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:      // intended fall-through
2186      case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:
2187      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
2188        result = SL_RESULT_FEATURE_UNSUPPORTED;
2189        break;
2190
2191      case AUDIOPLAYER_FROM_URIFD:                   // intended fall-through
2192      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
2193        if (ap->mAPlayer != 0) {
2194            ap->mAPlayer->seek(posMsec);
2195        }
2196        break;
2197
2198      default:
2199        break;
2200    }
2201    return result;
2202}
2203
2204
2205//-----------------------------------------------------------------------------
2206SLresult android_audioPlayer_loop(CAudioPlayer *ap, SLboolean loopEnable) {
2207    SLresult result = SL_RESULT_SUCCESS;
2208
2209    switch (ap->mAndroidObjType) {
2210    case AUDIOPLAYER_FROM_URIFD:
2211    // case AUDIOPLAY_FROM_URIFD_TO_PCM_BUFFERQUEUE:
2212    //      would actually work, but what's the point?
2213      if (ap->mAPlayer != 0) {
2214        ap->mAPlayer->loop((bool)loopEnable);
2215      }
2216      break;
2217    default:
2218      result = SL_RESULT_FEATURE_UNSUPPORTED;
2219      break;
2220    }
2221    return result;
2222}
2223
2224
2225//-----------------------------------------------------------------------------
2226SLresult android_audioPlayer_setBufferingUpdateThresholdPerMille(CAudioPlayer *ap,
2227        SLpermille threshold) {
2228    SLresult result = SL_RESULT_SUCCESS;
2229
2230    switch (ap->mAndroidObjType) {
2231      case AUDIOPLAYER_FROM_URIFD:
2232        if (ap->mAPlayer != 0) {
2233            ap->mAPlayer->setBufferingUpdateThreshold(threshold / 10);
2234        }
2235        break;
2236
2237      default: {}
2238    }
2239
2240    return result;
2241}
2242
2243
2244//-----------------------------------------------------------------------------
2245void android_audioPlayer_bufferQueue_onRefilled_l(CAudioPlayer *ap) {
2246    // the AudioTrack associated with the AudioPlayer receiving audio from a PCM buffer
2247    // queue was stopped when the queue become empty, we restart as soon as a new buffer
2248    // has been enqueued since we're in playing state
2249    if (ap->mAudioTrack != 0) {
2250        // instead of ap->mAudioTrack->start();
2251        ap->mDeferredStart = true;
2252    }
2253
2254    // when the queue became empty, an underflow on the prefetch status itf was sent. Now the queue
2255    // has received new data, signal it has sufficient data
2256    if (IsInterfaceInitialized(&ap->mObject, MPH_PREFETCHSTATUS)) {
2257        // we wouldn't have been called unless we were previously in the underflow state
2258        assert(SL_PREFETCHSTATUS_UNDERFLOW == ap->mPrefetchStatus.mStatus);
2259        assert(0 == ap->mPrefetchStatus.mLevel);
2260        ap->mPrefetchStatus.mStatus = SL_PREFETCHSTATUS_SUFFICIENTDATA;
2261        ap->mPrefetchStatus.mLevel = 1000;
2262        // callback or no callback?
2263        SLuint32 prefetchEvents = ap->mPrefetchStatus.mCallbackEventsMask &
2264                (SL_PREFETCHEVENT_STATUSCHANGE | SL_PREFETCHEVENT_FILLLEVELCHANGE);
2265        if (SL_PREFETCHEVENT_NONE != prefetchEvents) {
2266            ap->mPrefetchStatus.mDeferredPrefetchCallback = ap->mPrefetchStatus.mCallback;
2267            ap->mPrefetchStatus.mDeferredPrefetchContext  = ap->mPrefetchStatus.mContext;
2268            ap->mPrefetchStatus.mDeferredPrefetchEvents   = prefetchEvents;
2269        }
2270    }
2271}
2272
2273
2274//-----------------------------------------------------------------------------
2275/*
2276 * BufferQueue::Clear
2277 */
2278SLresult android_audioPlayer_bufferQueue_onClear(CAudioPlayer *ap) {
2279    SLresult result = SL_RESULT_SUCCESS;
2280
2281    switch (ap->mAndroidObjType) {
2282    //-----------------------------------
2283    // AudioTrack
2284    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
2285        if (ap->mAudioTrack != 0) {
2286            ap->mAudioTrack->flush();
2287        }
2288        break;
2289    default:
2290        result = SL_RESULT_INTERNAL_ERROR;
2291        break;
2292    }
2293
2294    return result;
2295}
2296
2297
2298//-----------------------------------------------------------------------------
2299void android_audioPlayer_androidBufferQueue_clear_l(CAudioPlayer *ap) {
2300    switch (ap->mAndroidObjType) {
2301    case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:
2302      if (ap->mAPlayer != 0) {
2303        android::StreamPlayer* splr = static_cast<android::StreamPlayer*>(ap->mAPlayer.get());
2304        splr->appClear_l();
2305      } break;
2306    case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
2307      // nothing to do here, fall through
2308    default:
2309      break;
2310    }
2311}
2312
2313void android_audioPlayer_androidBufferQueue_onRefilled_l(CAudioPlayer *ap) {
2314    switch (ap->mAndroidObjType) {
2315    case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:
2316      if (ap->mAPlayer != 0) {
2317        android::StreamPlayer* splr = static_cast<android::StreamPlayer*>(ap->mAPlayer.get());
2318        splr->queueRefilled();
2319      } break;
2320    case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
2321      // FIXME this may require waking up the decoder if it is currently starved and isn't polling
2322    default:
2323      break;
2324    }
2325}
2326