AudioPlayer_to_android.cpp revision 0f6da1a299c8dd924d19714ee69d343915c32d2c 
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 */
565AndroidObjectType audioPlayer_getAndroidObjectTypeForSourceSink(CAudioPlayer *ap) {
566
567    const SLDataSource *pAudioSrc = &ap->mDataSource.u.mSource;
568    const SLDataSink *pAudioSnk = &ap->mDataSink.u.mSink;
569    const SLuint32 sourceLocatorType = *(SLuint32 *)pAudioSrc->pLocator;
570    const SLuint32 sinkLocatorType = *(SLuint32 *)pAudioSnk->pLocator;
571    AndroidObjectType type = INVALID_TYPE;
572
573    //--------------------------------------
574    // Sink / source matching check:
575    // the following source / sink combinations are supported
576    //     SL_DATALOCATOR_BUFFERQUEUE                / SL_DATALOCATOR_OUTPUTMIX
577    //     SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE   / SL_DATALOCATOR_OUTPUTMIX
578    //     SL_DATALOCATOR_URI                        / SL_DATALOCATOR_OUTPUTMIX
579    //     SL_DATALOCATOR_ANDROIDFD                  / SL_DATALOCATOR_OUTPUTMIX
580    //     SL_DATALOCATOR_ANDROIDBUFFERQUEUE         / SL_DATALOCATOR_OUTPUTMIX
581    //     SL_DATALOCATOR_ANDROIDBUFFERQUEUE         / SL_DATALOCATOR_BUFFERQUEUE
582    //     SL_DATALOCATOR_URI                        / SL_DATALOCATOR_BUFFERQUEUE
583    //     SL_DATALOCATOR_ANDROIDFD                  / SL_DATALOCATOR_BUFFERQUEUE
584    //     SL_DATALOCATOR_URI                        / SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE
585    //     SL_DATALOCATOR_ANDROIDFD                  / SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE
586    switch (sinkLocatorType) {
587
588    case SL_DATALOCATOR_OUTPUTMIX: {
589        switch (sourceLocatorType) {
590
591        //   Buffer Queue to AudioTrack
592        case SL_DATALOCATOR_BUFFERQUEUE:
593        case SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE:
594            type = AUDIOPLAYER_FROM_PCM_BUFFERQUEUE;
595            break;
596
597        //   URI or FD to MediaPlayer
598        case SL_DATALOCATOR_URI:
599        case SL_DATALOCATOR_ANDROIDFD:
600            type = AUDIOPLAYER_FROM_URIFD;
601            break;
602
603        //   Android BufferQueue to MediaPlayer (shared memory streaming)
604        case SL_DATALOCATOR_ANDROIDBUFFERQUEUE:
605            type = AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE;
606            break;
607
608        default:
609            SL_LOGE("Source data locator 0x%x not supported with SL_DATALOCATOR_OUTPUTMIX sink",
610                    (unsigned)sourceLocatorType);
611            break;
612        }
613        }
614        break;
615
616    case SL_DATALOCATOR_BUFFERQUEUE:
617    case SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE:
618        switch (sourceLocatorType) {
619
620        //   URI or FD decoded to PCM in a buffer queue
621        case SL_DATALOCATOR_URI:
622        case SL_DATALOCATOR_ANDROIDFD:
623            type = AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE;
624            break;
625
626        //   AAC ADTS Android buffer queue decoded to PCM in a buffer queue
627        case SL_DATALOCATOR_ANDROIDBUFFERQUEUE:
628            type = AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE;
629            break;
630
631        default:
632            SL_LOGE("Source data locator 0x%x not supported with SL_DATALOCATOR_BUFFERQUEUE sink",
633                    (unsigned)sourceLocatorType);
634            break;
635        }
636        break;
637
638    default:
639        SL_LOGE("Sink data locator 0x%x not supported", (unsigned)sinkLocatorType);
640        break;
641    }
642
643    return type;
644}
645
646
647//-----------------------------------------------------------------------------
648/*
649 * Callback associated with an SfPlayer of an SL ES AudioPlayer that gets its data
650 * from a URI or FD, for prepare, prefetch, and play events
651 */
652static void sfplayer_handlePrefetchEvent(int event, int data1, int data2, void* user) {
653
654    // FIXME see similar code and comment in player_handleMediaPlayerEventNotifications
655
656    if (NULL == user) {
657        return;
658    }
659
660    CAudioPlayer *ap = (CAudioPlayer *)user;
661    if (!android::CallbackProtector::enterCbIfOk(ap->mCallbackProtector)) {
662        // it is not safe to enter the callback (the track is about to go away)
663        return;
664    }
665    union {
666        char c[sizeof(int)];
667        int i;
668    } u;
669    u.i = event;
670    SL_LOGV("sfplayer_handlePrefetchEvent(event='%c%c%c%c' (%d), data1=%d, data2=%d, user=%p) from "
671            "SfAudioPlayer", u.c[3], u.c[2], u.c[1], u.c[0], event, data1, data2, user);
672    switch(event) {
673
674    case android::GenericPlayer::kEventPrepared: {
675        SL_LOGV("Received GenericPlayer::kEventPrepared for CAudioPlayer %p", ap);
676
677        // assume no callback
678        slPrefetchCallback callback = NULL;
679        void* callbackPContext;
680        SLuint32 events;
681
682        object_lock_exclusive(&ap->mObject);
683
684        // mark object as prepared; same state is used for successful or unsuccessful prepare
685        assert(ap->mAndroidObjState == ANDROID_PREPARING);
686        ap->mAndroidObjState = ANDROID_READY;
687
688        if (PLAYER_SUCCESS == data1) {
689            // Most of successful prepare completion for ap->mAPlayer
690            // is handled by GenericPlayer and its subclasses.
691        } else {
692            // SfPlayer prepare() failed prefetching, there is no event in SLPrefetchStatus to
693            //  indicate a prefetch error, so we signal it by sending simultaneously two events:
694            //  - SL_PREFETCHEVENT_FILLLEVELCHANGE with a level of 0
695            //  - SL_PREFETCHEVENT_STATUSCHANGE with a status of SL_PREFETCHSTATUS_UNDERFLOW
696            SL_LOGE(ERROR_PLAYER_PREFETCH_d, data1);
697            if (IsInterfaceInitialized(&(ap->mObject), MPH_PREFETCHSTATUS)) {
698                ap->mPrefetchStatus.mLevel = 0;
699                ap->mPrefetchStatus.mStatus = SL_PREFETCHSTATUS_UNDERFLOW;
700                if (!(~ap->mPrefetchStatus.mCallbackEventsMask &
701                        (SL_PREFETCHEVENT_FILLLEVELCHANGE | SL_PREFETCHEVENT_STATUSCHANGE))) {
702                    callback = ap->mPrefetchStatus.mCallback;
703                    callbackPContext = ap->mPrefetchStatus.mContext;
704                    events = SL_PREFETCHEVENT_FILLLEVELCHANGE | SL_PREFETCHEVENT_STATUSCHANGE;
705                }
706            }
707        }
708
709        object_unlock_exclusive(&ap->mObject);
710
711        // callback with no lock held
712        if (NULL != callback) {
713            (*callback)(&ap->mPrefetchStatus.mItf, callbackPContext, events);
714        }
715
716    }
717    break;
718
719    case android::GenericPlayer::kEventPrefetchFillLevelUpdate : {
720        if (!IsInterfaceInitialized(&(ap->mObject), MPH_PREFETCHSTATUS)) {
721            break;
722        }
723        slPrefetchCallback callback = NULL;
724        void* callbackPContext = NULL;
725
726        // SLPrefetchStatusItf callback or no callback?
727        interface_lock_exclusive(&ap->mPrefetchStatus);
728        if (ap->mPrefetchStatus.mCallbackEventsMask & SL_PREFETCHEVENT_FILLLEVELCHANGE) {
729            callback = ap->mPrefetchStatus.mCallback;
730            callbackPContext = ap->mPrefetchStatus.mContext;
731        }
732        ap->mPrefetchStatus.mLevel = (SLpermille)data1;
733        interface_unlock_exclusive(&ap->mPrefetchStatus);
734
735        // callback with no lock held
736        if (NULL != callback) {
737            (*callback)(&ap->mPrefetchStatus.mItf, callbackPContext,
738                    SL_PREFETCHEVENT_FILLLEVELCHANGE);
739        }
740    }
741    break;
742
743    case android::GenericPlayer::kEventPrefetchStatusChange: {
744        if (!IsInterfaceInitialized(&(ap->mObject), MPH_PREFETCHSTATUS)) {
745            break;
746        }
747        slPrefetchCallback callback = NULL;
748        void* callbackPContext = NULL;
749
750        // SLPrefetchStatusItf callback or no callback?
751        object_lock_exclusive(&ap->mObject);
752        if (ap->mPrefetchStatus.mCallbackEventsMask & SL_PREFETCHEVENT_STATUSCHANGE) {
753            callback = ap->mPrefetchStatus.mCallback;
754            callbackPContext = ap->mPrefetchStatus.mContext;
755        }
756        if (data1 >= android::kStatusIntermediate) {
757            ap->mPrefetchStatus.mStatus = SL_PREFETCHSTATUS_SUFFICIENTDATA;
758        } else if (data1 < android::kStatusIntermediate) {
759            ap->mPrefetchStatus.mStatus = SL_PREFETCHSTATUS_UNDERFLOW;
760        }
761        object_unlock_exclusive(&ap->mObject);
762
763        // callback with no lock held
764        if (NULL != callback) {
765            (*callback)(&ap->mPrefetchStatus.mItf, callbackPContext, SL_PREFETCHEVENT_STATUSCHANGE);
766        }
767        }
768        break;
769
770    case android::GenericPlayer::kEventEndOfStream: {
771        audioPlayer_dispatch_headAtEnd_lockPlay(ap, true /*set state to paused?*/, true);
772        if ((ap->mAudioTrack != 0) && (!ap->mSeek.mLoopEnabled)) {
773            ap->mAudioTrack->stop();
774        }
775        }
776        break;
777
778    case android::GenericPlayer::kEventChannelCount: {
779        object_lock_exclusive(&ap->mObject);
780        if (UNKNOWN_NUMCHANNELS == ap->mNumChannels && UNKNOWN_NUMCHANNELS != data1) {
781            ap->mNumChannels = data1;
782            android_audioPlayer_volumeUpdate(ap);
783        }
784        object_unlock_exclusive(&ap->mObject);
785        }
786        break;
787
788    case android::GenericPlayer::kEventPlay: {
789        slPlayCallback callback = NULL;
790        void* callbackPContext = NULL;
791
792        interface_lock_shared(&ap->mPlay);
793        callback = ap->mPlay.mCallback;
794        callbackPContext = ap->mPlay.mContext;
795        interface_unlock_shared(&ap->mPlay);
796
797        if (NULL != callback) {
798            SLuint32 event = (SLuint32) data1;  // SL_PLAYEVENT_HEAD*
799#ifndef USE_ASYNCHRONOUS_PLAY_CALLBACK
800            // synchronous callback requires a synchronous GetPosition implementation
801            (*callback)(&ap->mPlay.mItf, callbackPContext, event);
802#else
803            // asynchronous callback works with any GetPosition implementation
804            SLresult result = EnqueueAsyncCallback_ppi(ap, callback, &ap->mPlay.mItf,
805                    callbackPContext, event);
806            if (SL_RESULT_SUCCESS != result) {
807                ALOGW("Callback %p(%p, %p, 0x%x) dropped", callback,
808                        &ap->mPlay.mItf, callbackPContext, event);
809            }
810#endif
811        }
812        }
813        break;
814
815      case android::GenericPlayer::kEventErrorAfterPrepare: {
816        SL_LOGV("kEventErrorAfterPrepare");
817
818        // assume no callback
819        slPrefetchCallback callback = NULL;
820        void* callbackPContext = NULL;
821
822        object_lock_exclusive(&ap->mObject);
823        if (IsInterfaceInitialized(&ap->mObject, MPH_PREFETCHSTATUS)) {
824            ap->mPrefetchStatus.mLevel = 0;
825            ap->mPrefetchStatus.mStatus = SL_PREFETCHSTATUS_UNDERFLOW;
826            if (!(~ap->mPrefetchStatus.mCallbackEventsMask &
827                    (SL_PREFETCHEVENT_FILLLEVELCHANGE | SL_PREFETCHEVENT_STATUSCHANGE))) {
828                callback = ap->mPrefetchStatus.mCallback;
829                callbackPContext = ap->mPrefetchStatus.mContext;
830            }
831        }
832        object_unlock_exclusive(&ap->mObject);
833
834        // FIXME there's interesting information in data1, but no API to convey it to client
835        SL_LOGE("Error after prepare: %d", data1);
836
837        // callback with no lock held
838        if (NULL != callback) {
839            (*callback)(&ap->mPrefetchStatus.mItf, callbackPContext,
840                    SL_PREFETCHEVENT_FILLLEVELCHANGE | SL_PREFETCHEVENT_STATUSCHANGE);
841        }
842
843      }
844      break;
845
846    case android::GenericPlayer::kEventHasVideoSize:
847        //SL_LOGW("Unexpected kEventHasVideoSize");
848        break;
849
850    default:
851        break;
852    }
853
854    ap->mCallbackProtector->exitCb();
855}
856
857// From EffectDownmix.h
858const uint32_t kSides = AUDIO_CHANNEL_OUT_SIDE_LEFT | AUDIO_CHANNEL_OUT_SIDE_RIGHT;
859const uint32_t kBacks = AUDIO_CHANNEL_OUT_BACK_LEFT | AUDIO_CHANNEL_OUT_BACK_RIGHT;
860const uint32_t kUnsupported =
861        AUDIO_CHANNEL_OUT_FRONT_LEFT_OF_CENTER | AUDIO_CHANNEL_OUT_FRONT_RIGHT_OF_CENTER |
862        AUDIO_CHANNEL_OUT_TOP_CENTER |
863        AUDIO_CHANNEL_OUT_TOP_FRONT_LEFT |
864        AUDIO_CHANNEL_OUT_TOP_FRONT_CENTER |
865        AUDIO_CHANNEL_OUT_TOP_FRONT_RIGHT |
866        AUDIO_CHANNEL_OUT_TOP_BACK_LEFT |
867        AUDIO_CHANNEL_OUT_TOP_BACK_CENTER |
868        AUDIO_CHANNEL_OUT_TOP_BACK_RIGHT;
869
870//TODO(pmclean) This will need to be revisited when arbitrary N-channel support is added.
871SLresult android_audioPlayer_validateChannelMask(uint32_t mask, int numChans) {
872    // Check that the number of channels falls within bounds.
873    if (numChans < 0 || numChans > 8) {
874        return SL_RESULT_CONTENT_UNSUPPORTED;
875    }
876    // Are there the right number of channels in the mask?
877    if (audio_channel_count_from_out_mask(mask) != numChans) {
878        return SL_RESULT_CONTENT_UNSUPPORTED;
879    }
880    // check against unsupported channels
881    if (mask & kUnsupported) {
882        ALOGE("Unsupported channels (top or front left/right of center)");
883        return SL_RESULT_CONTENT_UNSUPPORTED;
884    }
885    // verify has FL/FR if more than one channel
886    if (numChans > 1 && (mask & AUDIO_CHANNEL_OUT_STEREO) != AUDIO_CHANNEL_OUT_STEREO) {
887        ALOGE("Front channels must be present");
888        return SL_RESULT_CONTENT_UNSUPPORTED;
889    }
890    // verify uses SIDE as a pair (ok if not using SIDE at all)
891    bool hasSides = false;
892    if ((mask & kSides) != 0) {
893        if ((mask & kSides) != kSides) {
894            ALOGE("Side channels must be used as a pair");
895            return SL_RESULT_CONTENT_UNSUPPORTED;
896        }
897        hasSides = true;
898    }
899    // verify uses BACK as a pair (ok if not using BACK at all)
900    bool hasBacks = false;
901    if ((mask & kBacks) != 0) {
902        if ((mask & kBacks) != kBacks) {
903            ALOGE("Back channels must be used as a pair");
904            return SL_RESULT_CONTENT_UNSUPPORTED;
905        }
906        hasBacks = true;
907    }
908
909    return SL_RESULT_SUCCESS;
910}
911
912//-----------------------------------------------------------------------------
913SLresult android_audioPlayer_checkSourceSink(CAudioPlayer *pAudioPlayer)
914{
915    // verify that the locator types for the source / sink combination is supported
916    pAudioPlayer->mAndroidObjType = audioPlayer_getAndroidObjectTypeForSourceSink(pAudioPlayer);
917    if (INVALID_TYPE == pAudioPlayer->mAndroidObjType) {
918        return SL_RESULT_PARAMETER_INVALID;
919    }
920
921    const SLDataSource *pAudioSrc = &pAudioPlayer->mDataSource.u.mSource;
922    const SLDataSink *pAudioSnk = &pAudioPlayer->mDataSink.u.mSink;
923
924    // format check:
925    const SLuint32 sourceLocatorType = *(SLuint32 *)pAudioSrc->pLocator;
926    const SLuint32 sinkLocatorType = *(SLuint32 *)pAudioSnk->pLocator;
927    const SLuint32 sourceFormatType = *(SLuint32 *)pAudioSrc->pFormat;
928    const SLuint32 sinkFormatType = *(SLuint32 *)pAudioSnk->pFormat;
929
930    const SLuint32 *df_representation = NULL; // pointer to representation field, if it exists
931
932    switch (sourceLocatorType) {
933    //------------------
934    //   Buffer Queues
935    case SL_DATALOCATOR_BUFFERQUEUE:
936    case SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE:
937        {
938        SLDataLocator_BufferQueue *dl_bq = (SLDataLocator_BufferQueue *) pAudioSrc->pLocator;
939
940        // Buffer format
941        switch (sourceFormatType) {
942        //     currently only PCM buffer queues are supported,
943        case SL_ANDROID_DATAFORMAT_PCM_EX: {
944            SLAndroidDataFormat_PCM_EX *df_pcm =
945                    (SLAndroidDataFormat_PCM_EX *) pAudioSrc->pFormat;
946            switch (df_pcm->representation) {
947            case SL_ANDROID_PCM_REPRESENTATION_SIGNED_INT:
948            case SL_ANDROID_PCM_REPRESENTATION_UNSIGNED_INT:
949            case SL_ANDROID_PCM_REPRESENTATION_FLOAT:
950                df_representation = &df_pcm->representation;
951                break;
952            default:
953                SL_LOGE("Cannot create audio player: unsupported representation: %d",
954                        df_pcm->representation);
955                return SL_RESULT_CONTENT_UNSUPPORTED;
956            }
957            }; // SL_ANDROID_DATAFORMAT_PCM_EX - fall through to next test.
958        case SL_DATAFORMAT_PCM: {
959            SLDataFormat_PCM *df_pcm = (SLDataFormat_PCM *) pAudioSrc->pFormat;
960            SLresult result = android_audioPlayer_validateChannelMask(df_pcm->channelMask,
961                                                                      df_pcm->numChannels);
962            if (result != SL_RESULT_SUCCESS) {
963                SL_LOGE("Cannot create audio player: unsupported PCM data source with %u channels",
964                        (unsigned) df_pcm->numChannels);
965                return result;
966            }
967
968            switch (df_pcm->samplesPerSec) {
969            case SL_SAMPLINGRATE_8:
970            case SL_SAMPLINGRATE_11_025:
971            case SL_SAMPLINGRATE_12:
972            case SL_SAMPLINGRATE_16:
973            case SL_SAMPLINGRATE_22_05:
974            case SL_SAMPLINGRATE_24:
975            case SL_SAMPLINGRATE_32:
976            case SL_SAMPLINGRATE_44_1:
977            case SL_SAMPLINGRATE_48:
978                break;
979            case SL_SAMPLINGRATE_64:
980            case SL_SAMPLINGRATE_88_2:
981            case SL_SAMPLINGRATE_96:
982            case SL_SAMPLINGRATE_192:
983            default:
984                SL_LOGE("Cannot create audio player: unsupported sample rate %u milliHz",
985                    (unsigned) df_pcm->samplesPerSec);
986                return SL_RESULT_CONTENT_UNSUPPORTED;
987            }
988            switch (df_pcm->bitsPerSample) {
989            case SL_PCMSAMPLEFORMAT_FIXED_8:
990                if (df_representation &&
991                        *df_representation != SL_ANDROID_PCM_REPRESENTATION_UNSIGNED_INT) {
992                    goto default_err;
993                }
994                break;
995            case SL_PCMSAMPLEFORMAT_FIXED_16:
996            case SL_PCMSAMPLEFORMAT_FIXED_24:
997                if (df_representation &&
998                        *df_representation != SL_ANDROID_PCM_REPRESENTATION_SIGNED_INT) {
999                    goto default_err;
1000                }
1001                break;
1002            case SL_PCMSAMPLEFORMAT_FIXED_32:
1003                if (df_representation
1004                        && *df_representation != SL_ANDROID_PCM_REPRESENTATION_SIGNED_INT
1005                        && *df_representation != SL_ANDROID_PCM_REPRESENTATION_FLOAT) {
1006                    goto default_err;
1007                }
1008                break;
1009                // others
1010            default:
1011            default_err:
1012                // this should have already been rejected by checkDataFormat
1013                SL_LOGE("Cannot create audio player: unsupported sample bit depth %u",
1014                        (SLuint32)df_pcm->bitsPerSample);
1015                return SL_RESULT_CONTENT_UNSUPPORTED;
1016            }
1017            switch (df_pcm->containerSize) {
1018            case 8:
1019            case 16:
1020            case 24:
1021            case 32:
1022                break;
1023                // others
1024            default:
1025                SL_LOGE("Cannot create audio player: unsupported container size %u",
1026                    (unsigned) df_pcm->containerSize);
1027                return SL_RESULT_CONTENT_UNSUPPORTED;
1028            }
1029            // df_pcm->channelMask: the earlier platform-independent check and the
1030            //     upcoming check by sles_to_android_channelMaskOut are sufficient
1031            switch (df_pcm->endianness) {
1032            case SL_BYTEORDER_LITTLEENDIAN:
1033                break;
1034            case SL_BYTEORDER_BIGENDIAN:
1035                SL_LOGE("Cannot create audio player: unsupported big-endian byte order");
1036                return SL_RESULT_CONTENT_UNSUPPORTED;
1037                // native is proposed but not yet in spec
1038            default:
1039                SL_LOGE("Cannot create audio player: unsupported byte order %u",
1040                    (unsigned) df_pcm->endianness);
1041                return SL_RESULT_CONTENT_UNSUPPORTED;
1042            }
1043            } //case SL_DATAFORMAT_PCM
1044            break;
1045        case SL_DATAFORMAT_MIME:
1046        case XA_DATAFORMAT_RAWIMAGE:
1047            SL_LOGE("Cannot create audio player with buffer queue data source "
1048                "without SL_DATAFORMAT_PCM format");
1049            return SL_RESULT_CONTENT_UNSUPPORTED;
1050        default:
1051            // invalid data format is detected earlier
1052            assert(false);
1053            return SL_RESULT_INTERNAL_ERROR;
1054        } // switch (sourceFormatType)
1055        } // case SL_DATALOCATOR_BUFFERQUEUE or SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE
1056        break;
1057    //------------------
1058    //   URI
1059    case SL_DATALOCATOR_URI:
1060        {
1061        SLDataLocator_URI *dl_uri = (SLDataLocator_URI *) pAudioSrc->pLocator;
1062        if (NULL == dl_uri->URI) {
1063            return SL_RESULT_PARAMETER_INVALID;
1064        }
1065        // URI format
1066        switch (sourceFormatType) {
1067        case SL_DATAFORMAT_MIME:
1068            break;
1069        case SL_DATAFORMAT_PCM:
1070        case XA_DATAFORMAT_RAWIMAGE:
1071            SL_LOGE("Cannot create audio player with SL_DATALOCATOR_URI data source without "
1072                "SL_DATAFORMAT_MIME format");
1073            return SL_RESULT_CONTENT_UNSUPPORTED;
1074        } // switch (sourceFormatType)
1075        // decoding format check
1076        if ((sinkLocatorType != SL_DATALOCATOR_OUTPUTMIX) &&
1077                !audioPlayer_isSupportedNonOutputMixSink(pAudioSnk)) {
1078            return SL_RESULT_CONTENT_UNSUPPORTED;
1079        }
1080        } // case SL_DATALOCATOR_URI
1081        break;
1082    //------------------
1083    //   File Descriptor
1084    case SL_DATALOCATOR_ANDROIDFD:
1085        {
1086        // fd is already non null
1087        switch (sourceFormatType) {
1088        case SL_DATAFORMAT_MIME:
1089            break;
1090        case SL_DATAFORMAT_PCM:
1091            // FIXME implement
1092            SL_LOGD("[ FIXME implement PCM FD data sources ]");
1093            break;
1094        case XA_DATAFORMAT_RAWIMAGE:
1095            SL_LOGE("Cannot create audio player with SL_DATALOCATOR_ANDROIDFD data source "
1096                "without SL_DATAFORMAT_MIME or SL_DATAFORMAT_PCM format");
1097            return SL_RESULT_CONTENT_UNSUPPORTED;
1098        default:
1099            // invalid data format is detected earlier
1100            assert(false);
1101            return SL_RESULT_INTERNAL_ERROR;
1102        } // switch (sourceFormatType)
1103        if ((sinkLocatorType != SL_DATALOCATOR_OUTPUTMIX) &&
1104                !audioPlayer_isSupportedNonOutputMixSink(pAudioSnk)) {
1105            return SL_RESULT_CONTENT_UNSUPPORTED;
1106        }
1107        } // case SL_DATALOCATOR_ANDROIDFD
1108        break;
1109    //------------------
1110    //   Stream
1111    case SL_DATALOCATOR_ANDROIDBUFFERQUEUE:
1112    {
1113        switch (sourceFormatType) {
1114        case SL_DATAFORMAT_MIME:
1115        {
1116            SLDataFormat_MIME *df_mime = (SLDataFormat_MIME *) pAudioSrc->pFormat;
1117            if (NULL == df_mime) {
1118                SL_LOGE("MIME type null invalid");
1119                return SL_RESULT_CONTENT_UNSUPPORTED;
1120            }
1121            SL_LOGD("source MIME is %s", (char*)df_mime->mimeType);
1122            switch(df_mime->containerType) {
1123            case SL_CONTAINERTYPE_MPEG_TS:
1124                if (strcasecmp((char*)df_mime->mimeType, (const char *)XA_ANDROID_MIME_MP2TS)) {
1125                    SL_LOGE("Invalid MIME (%s) for container SL_CONTAINERTYPE_MPEG_TS, expects %s",
1126                            (char*)df_mime->mimeType, XA_ANDROID_MIME_MP2TS);
1127                    return SL_RESULT_CONTENT_UNSUPPORTED;
1128                }
1129                break;
1130            case SL_CONTAINERTYPE_RAW:
1131            case SL_CONTAINERTYPE_AAC:
1132                if (strcasecmp((char*)df_mime->mimeType, (const char *)SL_ANDROID_MIME_AACADTS) &&
1133                        strcasecmp((char*)df_mime->mimeType,
1134                                ANDROID_MIME_AACADTS_ANDROID_FRAMEWORK)) {
1135                    SL_LOGE("Invalid MIME (%s) for container type %d, expects %s",
1136                            (char*)df_mime->mimeType, df_mime->containerType,
1137                            SL_ANDROID_MIME_AACADTS);
1138                    return SL_RESULT_CONTENT_UNSUPPORTED;
1139                }
1140                break;
1141            default:
1142                SL_LOGE("Cannot create player with SL_DATALOCATOR_ANDROIDBUFFERQUEUE data source "
1143                                        "that is not fed MPEG-2 TS data or AAC ADTS data");
1144                return SL_RESULT_CONTENT_UNSUPPORTED;
1145            }
1146        }
1147        break;
1148        default:
1149            SL_LOGE("Cannot create player with SL_DATALOCATOR_ANDROIDBUFFERQUEUE data source "
1150                    "without SL_DATAFORMAT_MIME format");
1151            return SL_RESULT_CONTENT_UNSUPPORTED;
1152        }
1153    }
1154    break; // case SL_DATALOCATOR_ANDROIDBUFFERQUEUE
1155    //------------------
1156    //   Address
1157    case SL_DATALOCATOR_ADDRESS:
1158    case SL_DATALOCATOR_IODEVICE:
1159    case SL_DATALOCATOR_OUTPUTMIX:
1160    case XA_DATALOCATOR_NATIVEDISPLAY:
1161    case SL_DATALOCATOR_MIDIBUFFERQUEUE:
1162        SL_LOGE("Cannot create audio player with data locator type 0x%x",
1163                (unsigned) sourceLocatorType);
1164        return SL_RESULT_CONTENT_UNSUPPORTED;
1165    default:
1166        SL_LOGE("Cannot create audio player with invalid data locator type 0x%x",
1167                (unsigned) sourceLocatorType);
1168        return SL_RESULT_PARAMETER_INVALID;
1169    }// switch (locatorType)
1170
1171    return SL_RESULT_SUCCESS;
1172}
1173
1174
1175//-----------------------------------------------------------------------------
1176// Callback associated with an AudioTrack of an SL ES AudioPlayer that gets its data
1177// from a buffer queue. This will not be called once the AudioTrack has been destroyed.
1178static void audioTrack_callBack_pullFromBuffQueue(int event, void* user, void *info) {
1179    CAudioPlayer *ap = (CAudioPlayer *)user;
1180
1181    if (!android::CallbackProtector::enterCbIfOk(ap->mCallbackProtector)) {
1182        // it is not safe to enter the callback (the track is about to go away)
1183        return;
1184    }
1185
1186    void * callbackPContext = NULL;
1187    switch(event) {
1188
1189    case android::AudioTrack::EVENT_MORE_DATA: {
1190        //SL_LOGV("received event EVENT_MORE_DATA from AudioTrack TID=%d", gettid());
1191        slPrefetchCallback prefetchCallback = NULL;
1192        void *prefetchContext = NULL;
1193        SLuint32 prefetchEvents = SL_PREFETCHEVENT_NONE;
1194        android::AudioTrack::Buffer* pBuff = (android::AudioTrack::Buffer*)info;
1195
1196        // retrieve data from the buffer queue
1197        interface_lock_exclusive(&ap->mBufferQueue);
1198
1199        if (ap->mBufferQueue.mCallbackPending) {
1200            // call callback with lock not held
1201            slBufferQueueCallback callback = ap->mBufferQueue.mCallback;
1202            if (NULL != callback) {
1203                callbackPContext = ap->mBufferQueue.mContext;
1204                interface_unlock_exclusive(&ap->mBufferQueue);
1205                (*callback)(&ap->mBufferQueue.mItf, callbackPContext);
1206                interface_lock_exclusive(&ap->mBufferQueue);
1207                ap->mBufferQueue.mCallbackPending = false;
1208            }
1209        }
1210
1211        if (ap->mBufferQueue.mState.count != 0) {
1212            //SL_LOGV("nbBuffers in queue = %u",ap->mBufferQueue.mState.count);
1213            assert(ap->mBufferQueue.mFront != ap->mBufferQueue.mRear);
1214
1215            BufferHeader *oldFront = ap->mBufferQueue.mFront;
1216            BufferHeader *newFront = &oldFront[1];
1217
1218            size_t availSource = oldFront->mSize - ap->mBufferQueue.mSizeConsumed;
1219            size_t availSink = pBuff->size;
1220            size_t bytesToCopy = availSource < availSink ? availSource : availSink;
1221            void *pSrc = (char *)oldFront->mBuffer + ap->mBufferQueue.mSizeConsumed;
1222            memcpy(pBuff->raw, pSrc, bytesToCopy);
1223
1224            if (bytesToCopy < availSource) {
1225                ap->mBufferQueue.mSizeConsumed += bytesToCopy;
1226                // pBuff->size is already equal to bytesToCopy in this case
1227            } else {
1228                // consumed an entire buffer, dequeue
1229                pBuff->size = bytesToCopy;
1230                ap->mBufferQueue.mSizeConsumed = 0;
1231                if (newFront ==
1232                        &ap->mBufferQueue.mArray
1233                            [ap->mBufferQueue.mNumBuffers + 1])
1234                {
1235                    newFront = ap->mBufferQueue.mArray;
1236                }
1237                ap->mBufferQueue.mFront = newFront;
1238
1239                ap->mBufferQueue.mState.count--;
1240                ap->mBufferQueue.mState.playIndex++;
1241                ap->mBufferQueue.mCallbackPending = true;
1242            }
1243        } else { // empty queue
1244            // signal no data available
1245            pBuff->size = 0;
1246
1247            // signal we're at the end of the content, but don't pause (see note in function)
1248            audioPlayer_dispatch_headAtEnd_lockPlay(ap, false /*set state to paused?*/, false);
1249
1250            // signal underflow to prefetch status itf
1251            if (IsInterfaceInitialized(&(ap->mObject), MPH_PREFETCHSTATUS)) {
1252                ap->mPrefetchStatus.mStatus = SL_PREFETCHSTATUS_UNDERFLOW;
1253                ap->mPrefetchStatus.mLevel = 0;
1254                // callback or no callback?
1255                prefetchEvents = ap->mPrefetchStatus.mCallbackEventsMask &
1256                        (SL_PREFETCHEVENT_STATUSCHANGE | SL_PREFETCHEVENT_FILLLEVELCHANGE);
1257                if (SL_PREFETCHEVENT_NONE != prefetchEvents) {
1258                    prefetchCallback = ap->mPrefetchStatus.mCallback;
1259                    prefetchContext  = ap->mPrefetchStatus.mContext;
1260                }
1261            }
1262
1263            // stop the track so it restarts playing faster when new data is enqueued
1264            ap->mAudioTrack->stop();
1265        }
1266        interface_unlock_exclusive(&ap->mBufferQueue);
1267
1268        // notify client
1269        if (NULL != prefetchCallback) {
1270            assert(SL_PREFETCHEVENT_NONE != prefetchEvents);
1271            // spec requires separate callbacks for each event
1272            if (prefetchEvents & SL_PREFETCHEVENT_STATUSCHANGE) {
1273                (*prefetchCallback)(&ap->mPrefetchStatus.mItf, prefetchContext,
1274                        SL_PREFETCHEVENT_STATUSCHANGE);
1275            }
1276            if (prefetchEvents & SL_PREFETCHEVENT_FILLLEVELCHANGE) {
1277                (*prefetchCallback)(&ap->mPrefetchStatus.mItf, prefetchContext,
1278                        SL_PREFETCHEVENT_FILLLEVELCHANGE);
1279            }
1280        }
1281    }
1282    break;
1283
1284    case android::AudioTrack::EVENT_MARKER:
1285        //SL_LOGI("received event EVENT_MARKER from AudioTrack");
1286        audioTrack_handleMarker_lockPlay(ap);
1287        break;
1288
1289    case android::AudioTrack::EVENT_NEW_POS:
1290        //SL_LOGI("received event EVENT_NEW_POS from AudioTrack");
1291        audioTrack_handleNewPos_lockPlay(ap);
1292        break;
1293
1294    case android::AudioTrack::EVENT_UNDERRUN:
1295        //SL_LOGI("received event EVENT_UNDERRUN from AudioTrack");
1296        audioTrack_handleUnderrun_lockPlay(ap);
1297        break;
1298
1299    case android::AudioTrack::EVENT_BUFFER_END:
1300    case android::AudioTrack::EVENT_LOOP_END:
1301        // These are unexpected so fall through
1302    default:
1303        // FIXME where does the notification of SL_PLAYEVENT_HEADMOVING fit?
1304        SL_LOGE("Encountered unknown AudioTrack event %d for CAudioPlayer %p", event,
1305                (CAudioPlayer *)user);
1306        break;
1307    }
1308
1309    ap->mCallbackProtector->exitCb();
1310}
1311
1312
1313//-----------------------------------------------------------------------------
1314void android_audioPlayer_create(CAudioPlayer *pAudioPlayer) {
1315
1316    // pAudioPlayer->mAndroidObjType has been set in android_audioPlayer_checkSourceSink()
1317    // and if it was == INVALID_TYPE, then IEngine_CreateAudioPlayer would never call us
1318    assert(INVALID_TYPE != pAudioPlayer->mAndroidObjType);
1319
1320    // These initializations are in the same order as the field declarations in classes.h
1321
1322    // FIXME Consolidate initializations (many of these already in IEngine_CreateAudioPlayer)
1323    // mAndroidObjType: see above comment
1324    pAudioPlayer->mAndroidObjState = ANDROID_UNINITIALIZED;
1325    pAudioPlayer->mSessionId = android::AudioSystem::newAudioUniqueId();
1326
1327    // placeholder: not necessary yet as session ID lifetime doesn't extend beyond player
1328    // android::AudioSystem::acquireAudioSessionId(pAudioPlayer->mSessionId);
1329
1330    pAudioPlayer->mStreamType = ANDROID_DEFAULT_OUTPUT_STREAM_TYPE;
1331
1332    // mAudioTrack
1333    pAudioPlayer->mCallbackProtector = new android::CallbackProtector();
1334    // mAPLayer
1335    // mAuxEffect
1336
1337    pAudioPlayer->mAuxSendLevel = 0;
1338    pAudioPlayer->mAmplFromDirectLevel = 1.0f; // matches initial mDirectLevel value
1339    pAudioPlayer->mDeferredStart = false;
1340
1341    // This section re-initializes interface-specific fields that
1342    // can be set or used regardless of whether the interface is
1343    // exposed on the AudioPlayer or not
1344
1345    switch (pAudioPlayer->mAndroidObjType) {
1346    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
1347        pAudioPlayer->mPlaybackRate.mMinRate = AUDIOTRACK_MIN_PLAYBACKRATE_PERMILLE;
1348        pAudioPlayer->mPlaybackRate.mMaxRate = AUDIOTRACK_MAX_PLAYBACKRATE_PERMILLE;
1349        break;
1350    case AUDIOPLAYER_FROM_URIFD:
1351        pAudioPlayer->mPlaybackRate.mMinRate = MEDIAPLAYER_MIN_PLAYBACKRATE_PERMILLE;
1352        pAudioPlayer->mPlaybackRate.mMaxRate = MEDIAPLAYER_MAX_PLAYBACKRATE_PERMILLE;
1353        break;
1354    default:
1355        // use the default range
1356        break;
1357    }
1358
1359}
1360
1361
1362//-----------------------------------------------------------------------------
1363SLresult android_audioPlayer_setConfig(CAudioPlayer *ap, const SLchar *configKey,
1364        const void *pConfigValue, SLuint32 valueSize) {
1365
1366    SLresult result;
1367
1368    assert(NULL != ap && NULL != configKey && NULL != pConfigValue);
1369    if (strcmp((const char*)configKey, (const char*)SL_ANDROID_KEY_STREAM_TYPE) == 0) {
1370
1371        // stream type
1372        if (KEY_STREAM_TYPE_PARAMSIZE > valueSize) {
1373            SL_LOGE(ERROR_CONFIG_VALUESIZE_TOO_LOW);
1374            result = SL_RESULT_BUFFER_INSUFFICIENT;
1375        } else {
1376            result = audioPlayer_setStreamType(ap, *(SLuint32*)pConfigValue);
1377        }
1378
1379    } else {
1380        SL_LOGE(ERROR_CONFIG_UNKNOWN_KEY);
1381        result = SL_RESULT_PARAMETER_INVALID;
1382    }
1383
1384    return result;
1385}
1386
1387
1388//-----------------------------------------------------------------------------
1389SLresult android_audioPlayer_getConfig(CAudioPlayer* ap, const SLchar *configKey,
1390        SLuint32* pValueSize, void *pConfigValue) {
1391
1392    SLresult result;
1393
1394    assert(NULL != ap && NULL != configKey && NULL != pValueSize);
1395    if (strcmp((const char*)configKey, (const char*)SL_ANDROID_KEY_STREAM_TYPE) == 0) {
1396
1397        // stream type
1398        if (NULL == pConfigValue) {
1399            result = SL_RESULT_SUCCESS;
1400        } else if (KEY_STREAM_TYPE_PARAMSIZE > *pValueSize) {
1401            SL_LOGE(ERROR_CONFIG_VALUESIZE_TOO_LOW);
1402            result = SL_RESULT_BUFFER_INSUFFICIENT;
1403        } else {
1404            result = audioPlayer_getStreamType(ap, (SLint32*)pConfigValue);
1405        }
1406        *pValueSize = KEY_STREAM_TYPE_PARAMSIZE;
1407
1408    } else {
1409        SL_LOGE(ERROR_CONFIG_UNKNOWN_KEY);
1410        result = SL_RESULT_PARAMETER_INVALID;
1411    }
1412
1413    return result;
1414}
1415
1416
1417// Called from android_audioPlayer_realize for a PCM buffer queue player
1418// to determine if it can use a fast track.
1419static bool canUseFastTrack(CAudioPlayer *pAudioPlayer)
1420{
1421    assert(pAudioPlayer->mAndroidObjType == AUDIOPLAYER_FROM_PCM_BUFFERQUEUE);
1422
1423    // no need to check the buffer queue size, application side
1424    // double-buffering (and more) is not a requirement for using fast tracks
1425
1426    // Check a blacklist of interfaces that are incompatible with fast tracks.
1427    // The alternative, to check a whitelist of compatible interfaces, is
1428    // more maintainable but is too slow.  As a compromise, in a debug build
1429    // we use both methods and warn if they produce different results.
1430    // In release builds, we only use the blacklist method.
1431    // If a blacklisted interface is added after realization using
1432    // DynamicInterfaceManagement::AddInterface,
1433    // then this won't be detected but the interface will be ineffective.
1434    bool blacklistResult = true;
1435    static const unsigned blacklist[] = {
1436        MPH_BASSBOOST,
1437        MPH_EFFECTSEND,
1438        MPH_ENVIRONMENTALREVERB,
1439        MPH_EQUALIZER,
1440        MPH_PLAYBACKRATE,
1441        MPH_PRESETREVERB,
1442        MPH_VIRTUALIZER,
1443        MPH_ANDROIDEFFECT,
1444        MPH_ANDROIDEFFECTSEND,
1445        // FIXME The problem with a blacklist is remembering to add new interfaces here
1446    };
1447    for (unsigned i = 0; i < sizeof(blacklist)/sizeof(blacklist[0]); ++i) {
1448        if (IsInterfaceInitialized(&pAudioPlayer->mObject, blacklist[i])) {
1449            blacklistResult = false;
1450            break;
1451        }
1452    }
1453#if LOG_NDEBUG == 0
1454    bool whitelistResult = true;
1455    static const unsigned whitelist[] = {
1456        MPH_BUFFERQUEUE,
1457        MPH_DYNAMICINTERFACEMANAGEMENT,
1458        MPH_METADATAEXTRACTION,
1459        MPH_MUTESOLO,
1460        MPH_OBJECT,
1461        MPH_PLAY,
1462        MPH_PREFETCHSTATUS,
1463        MPH_VOLUME,
1464        MPH_ANDROIDCONFIGURATION,
1465        MPH_ANDROIDSIMPLEBUFFERQUEUE,
1466        MPH_ANDROIDBUFFERQUEUESOURCE,
1467    };
1468    for (unsigned mph = MPH_MIN; mph < MPH_MAX; ++mph) {
1469        for (unsigned i = 0; i < sizeof(whitelist)/sizeof(whitelist[0]); ++i) {
1470            if (mph == whitelist[i]) {
1471                goto compatible;
1472            }
1473        }
1474        if (IsInterfaceInitialized(&pAudioPlayer->mObject, mph)) {
1475            whitelistResult = false;
1476            break;
1477        }
1478compatible: ;
1479    }
1480    if (whitelistResult != blacklistResult) {
1481        ALOGW("whitelistResult != blacklistResult");
1482        // and use blacklistResult below
1483    }
1484#endif
1485    return blacklistResult;
1486}
1487
1488
1489//-----------------------------------------------------------------------------
1490// FIXME abstract out the diff between CMediaPlayer and CAudioPlayer
1491SLresult android_audioPlayer_realize(CAudioPlayer *pAudioPlayer, SLboolean async) {
1492
1493    SLresult result = SL_RESULT_SUCCESS;
1494    SL_LOGV("Realize pAudioPlayer=%p", pAudioPlayer);
1495
1496    AudioPlayback_Parameters app;
1497    app.sessionId = pAudioPlayer->mSessionId;
1498    app.streamType = pAudioPlayer->mStreamType;
1499
1500    switch (pAudioPlayer->mAndroidObjType) {
1501
1502    //-----------------------------------
1503    // AudioTrack
1504    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
1505        {
1506        // initialize platform-specific CAudioPlayer fields
1507
1508        SLDataLocator_BufferQueue *dl_bq = (SLDataLocator_BufferQueue *)
1509                pAudioPlayer->mDynamicSource.mDataSource;
1510        SLDataFormat_PCM *df_pcm = (SLDataFormat_PCM *)
1511                pAudioPlayer->mDynamicSource.mDataSource->pFormat;
1512
1513        uint32_t sampleRate = sles_to_android_sampleRate(df_pcm->samplesPerSec);
1514
1515        audio_output_flags_t policy;
1516        if (canUseFastTrack(pAudioPlayer)) {
1517            policy = AUDIO_OUTPUT_FLAG_FAST;
1518        } else {
1519            policy = AUDIO_OUTPUT_FLAG_NONE;
1520        }
1521
1522        pAudioPlayer->mAudioTrack = new android::AudioTrack(
1523                pAudioPlayer->mStreamType,                           // streamType
1524                sampleRate,                                          // sampleRate
1525                sles_to_android_sampleFormat(df_pcm),                // format
1526                sles_to_android_channelMaskOut(df_pcm->numChannels, df_pcm->channelMask),
1527                                                                     // channel mask
1528                0,                                                   // frameCount
1529                policy,                                              // flags
1530                audioTrack_callBack_pullFromBuffQueue,               // callback
1531                (void *) pAudioPlayer,                               // user
1532                0,     // FIXME find appropriate frame count         // notificationFrame
1533                pAudioPlayer->mSessionId);
1534        android::status_t status = pAudioPlayer->mAudioTrack->initCheck();
1535        if (status != android::NO_ERROR) {
1536            SL_LOGE("AudioTrack::initCheck status %u", status);
1537            result = SL_RESULT_CONTENT_UNSUPPORTED;
1538            pAudioPlayer->mAudioTrack.clear();
1539            return result;
1540        }
1541
1542        // initialize platform-independent CAudioPlayer fields
1543
1544        pAudioPlayer->mNumChannels = df_pcm->numChannels;
1545        pAudioPlayer->mSampleRateMilliHz = df_pcm->samplesPerSec; // Note: bad field name in SL ES
1546
1547        // This use case does not have a separate "prepare" step
1548        pAudioPlayer->mAndroidObjState = ANDROID_READY;
1549        }
1550        break;
1551
1552    //-----------------------------------
1553    // MediaPlayer
1554    case AUDIOPLAYER_FROM_URIFD: {
1555        pAudioPlayer->mAPlayer = new android::LocAVPlayer(&app, false /*hasVideo*/);
1556        pAudioPlayer->mAPlayer->init(sfplayer_handlePrefetchEvent,
1557                        (void*)pAudioPlayer /*notifUSer*/);
1558
1559        switch (pAudioPlayer->mDataSource.mLocator.mLocatorType) {
1560            case SL_DATALOCATOR_URI: {
1561                // The legacy implementation ran Stagefright within the application process, and
1562                // so allowed local pathnames specified by URI that were openable by
1563                // the application but were not openable by mediaserver.
1564                // The current implementation runs Stagefright (mostly) within mediaserver,
1565                // which runs as a different UID and likely a different current working directory.
1566                // For backwards compatibility with any applications which may have relied on the
1567                // previous behavior, we convert an openable file URI into an FD.
1568                // Note that unlike SL_DATALOCATOR_ANDROIDFD, this FD is owned by us
1569                // and so we close it as soon as we've passed it (via Binder dup) to mediaserver.
1570                const char *uri = (const char *)pAudioPlayer->mDataSource.mLocator.mURI.URI;
1571                if (!isDistantProtocol(uri)) {
1572                    // don't touch the original uri, we may need it later
1573                    const char *pathname = uri;
1574                    // skip over an optional leading file:// prefix
1575                    if (!strncasecmp(pathname, "file://", 7)) {
1576                        pathname += 7;
1577                    }
1578                    // attempt to open it as a file using the application's credentials
1579                    int fd = ::open(pathname, O_RDONLY);
1580                    if (fd >= 0) {
1581                        // if open is successful, then check to see if it's a regular file
1582                        struct stat statbuf;
1583                        if (!::fstat(fd, &statbuf) && S_ISREG(statbuf.st_mode)) {
1584                            // treat similarly to an FD data locator, but
1585                            // let setDataSource take responsibility for closing fd
1586                            pAudioPlayer->mAPlayer->setDataSource(fd, 0, statbuf.st_size, true);
1587                            break;
1588                        }
1589                        // we were able to open it, but it's not a file, so let mediaserver try
1590                        (void) ::close(fd);
1591                    }
1592                }
1593                // if either the URI didn't look like a file, or open failed, or not a file
1594                pAudioPlayer->mAPlayer->setDataSource(uri);
1595                } break;
1596            case SL_DATALOCATOR_ANDROIDFD: {
1597                int64_t offset = (int64_t)pAudioPlayer->mDataSource.mLocator.mFD.offset;
1598                pAudioPlayer->mAPlayer->setDataSource(
1599                        (int)pAudioPlayer->mDataSource.mLocator.mFD.fd,
1600                        offset == SL_DATALOCATOR_ANDROIDFD_USE_FILE_SIZE ?
1601                                (int64_t)PLAYER_FD_FIND_FILE_SIZE : offset,
1602                        (int64_t)pAudioPlayer->mDataSource.mLocator.mFD.length);
1603                }
1604                break;
1605            default:
1606                SL_LOGE(ERROR_PLAYERREALIZE_UNKNOWN_DATASOURCE_LOCATOR);
1607                break;
1608        }
1609
1610        }
1611        break;
1612
1613    //-----------------------------------
1614    // StreamPlayer
1615    case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE: {
1616        android::StreamPlayer* splr = new android::StreamPlayer(&app, false /*hasVideo*/,
1617                &pAudioPlayer->mAndroidBufferQueue, pAudioPlayer->mCallbackProtector);
1618        pAudioPlayer->mAPlayer = splr;
1619        splr->init(sfplayer_handlePrefetchEvent, (void*)pAudioPlayer);
1620        }
1621        break;
1622
1623    //-----------------------------------
1624    // AudioToCbRenderer
1625    case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE: {
1626        android::AudioToCbRenderer* decoder = new android::AudioToCbRenderer(&app);
1627        pAudioPlayer->mAPlayer = decoder;
1628        // configures the callback for the sink buffer queue
1629        decoder->setDataPushListener(adecoder_writeToBufferQueue, pAudioPlayer);
1630        // configures the callback for the notifications coming from the SF code
1631        decoder->init(sfplayer_handlePrefetchEvent, (void*)pAudioPlayer);
1632
1633        switch (pAudioPlayer->mDataSource.mLocator.mLocatorType) {
1634        case SL_DATALOCATOR_URI:
1635            decoder->setDataSource(
1636                    (const char*)pAudioPlayer->mDataSource.mLocator.mURI.URI);
1637            break;
1638        case SL_DATALOCATOR_ANDROIDFD: {
1639            int64_t offset = (int64_t)pAudioPlayer->mDataSource.mLocator.mFD.offset;
1640            decoder->setDataSource(
1641                    (int)pAudioPlayer->mDataSource.mLocator.mFD.fd,
1642                    offset == SL_DATALOCATOR_ANDROIDFD_USE_FILE_SIZE ?
1643                            (int64_t)PLAYER_FD_FIND_FILE_SIZE : offset,
1644                            (int64_t)pAudioPlayer->mDataSource.mLocator.mFD.length);
1645            }
1646            break;
1647        default:
1648            SL_LOGE(ERROR_PLAYERREALIZE_UNKNOWN_DATASOURCE_LOCATOR);
1649            break;
1650        }
1651
1652        }
1653        break;
1654
1655    //-----------------------------------
1656    // AacBqToPcmCbRenderer
1657    case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE: {
1658        android::AacBqToPcmCbRenderer* bqtobq = new android::AacBqToPcmCbRenderer(&app,
1659                &pAudioPlayer->mAndroidBufferQueue);
1660        // configures the callback for the sink buffer queue
1661        bqtobq->setDataPushListener(adecoder_writeToBufferQueue, pAudioPlayer);
1662        pAudioPlayer->mAPlayer = bqtobq;
1663        // configures the callback for the notifications coming from the SF code,
1664        // but also implicitly configures the AndroidBufferQueue from which ADTS data is read
1665        pAudioPlayer->mAPlayer->init(sfplayer_handlePrefetchEvent, (void*)pAudioPlayer);
1666        }
1667        break;
1668
1669    //-----------------------------------
1670    default:
1671        SL_LOGE(ERROR_PLAYERREALIZE_UNEXPECTED_OBJECT_TYPE_D, pAudioPlayer->mAndroidObjType);
1672        result = SL_RESULT_INTERNAL_ERROR;
1673        break;
1674    }
1675
1676    // proceed with effect initialization
1677    // initialize EQ
1678    // FIXME use a table of effect descriptors when adding support for more effects
1679    if (memcmp(SL_IID_EQUALIZER, &pAudioPlayer->mEqualizer.mEqDescriptor.type,
1680            sizeof(effect_uuid_t)) == 0) {
1681        SL_LOGV("Need to initialize EQ for AudioPlayer=%p", pAudioPlayer);
1682        android_eq_init(pAudioPlayer->mSessionId, &pAudioPlayer->mEqualizer);
1683    }
1684    // initialize BassBoost
1685    if (memcmp(SL_IID_BASSBOOST, &pAudioPlayer->mBassBoost.mBassBoostDescriptor.type,
1686            sizeof(effect_uuid_t)) == 0) {
1687        SL_LOGV("Need to initialize BassBoost for AudioPlayer=%p", pAudioPlayer);
1688        android_bb_init(pAudioPlayer->mSessionId, &pAudioPlayer->mBassBoost);
1689    }
1690    // initialize Virtualizer
1691    if (memcmp(SL_IID_VIRTUALIZER, &pAudioPlayer->mVirtualizer.mVirtualizerDescriptor.type,
1692               sizeof(effect_uuid_t)) == 0) {
1693        SL_LOGV("Need to initialize Virtualizer for AudioPlayer=%p", pAudioPlayer);
1694        android_virt_init(pAudioPlayer->mSessionId, &pAudioPlayer->mVirtualizer);
1695    }
1696
1697    // initialize EffectSend
1698    // FIXME initialize EffectSend
1699
1700    return result;
1701}
1702
1703
1704//-----------------------------------------------------------------------------
1705/**
1706 * Called with a lock on AudioPlayer, and blocks until safe to destroy
1707 */
1708SLresult android_audioPlayer_preDestroy(CAudioPlayer *pAudioPlayer) {
1709    SL_LOGD("android_audioPlayer_preDestroy(%p)", pAudioPlayer);
1710    SLresult result = SL_RESULT_SUCCESS;
1711
1712    bool disableCallbacksBeforePreDestroy;
1713    switch (pAudioPlayer->mAndroidObjType) {
1714    // Not yet clear why this order is important, but it reduces detected deadlocks
1715    case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1716        disableCallbacksBeforePreDestroy = true;
1717        break;
1718    // Use the old behavior for all other use cases until proven
1719    // case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1720    default:
1721        disableCallbacksBeforePreDestroy = false;
1722        break;
1723    }
1724
1725    if (disableCallbacksBeforePreDestroy) {
1726        object_unlock_exclusive(&pAudioPlayer->mObject);
1727        if (pAudioPlayer->mCallbackProtector != 0) {
1728            pAudioPlayer->mCallbackProtector->requestCbExitAndWait();
1729        }
1730        object_lock_exclusive(&pAudioPlayer->mObject);
1731    }
1732
1733    if (pAudioPlayer->mAPlayer != 0) {
1734        pAudioPlayer->mAPlayer->preDestroy();
1735    }
1736    SL_LOGD("android_audioPlayer_preDestroy(%p) after mAPlayer->preDestroy()", pAudioPlayer);
1737
1738    if (!disableCallbacksBeforePreDestroy) {
1739        object_unlock_exclusive(&pAudioPlayer->mObject);
1740        if (pAudioPlayer->mCallbackProtector != 0) {
1741            pAudioPlayer->mCallbackProtector->requestCbExitAndWait();
1742        }
1743        object_lock_exclusive(&pAudioPlayer->mObject);
1744    }
1745
1746    return result;
1747}
1748
1749
1750//-----------------------------------------------------------------------------
1751SLresult android_audioPlayer_destroy(CAudioPlayer *pAudioPlayer) {
1752    SLresult result = SL_RESULT_SUCCESS;
1753    SL_LOGV("android_audioPlayer_destroy(%p)", pAudioPlayer);
1754    switch (pAudioPlayer->mAndroidObjType) {
1755
1756    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
1757        // We own the audio track for PCM buffer queue players
1758        if (pAudioPlayer->mAudioTrack != 0) {
1759            pAudioPlayer->mAudioTrack->stop();
1760            // Note that there may still be another reference in post-unlock phase of SetPlayState
1761            pAudioPlayer->mAudioTrack.clear();
1762        }
1763        break;
1764
1765    case AUDIOPLAYER_FROM_URIFD:     // intended fall-through
1766    case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:    // intended fall-through
1767    case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE: // intended fall-through
1768    case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1769        pAudioPlayer->mAPlayer.clear();
1770        break;
1771    //-----------------------------------
1772    default:
1773        SL_LOGE(ERROR_PLAYERDESTROY_UNEXPECTED_OBJECT_TYPE_D, pAudioPlayer->mAndroidObjType);
1774        result = SL_RESULT_INTERNAL_ERROR;
1775        break;
1776    }
1777
1778    // placeholder: not necessary yet as session ID lifetime doesn't extend beyond player
1779    // android::AudioSystem::releaseAudioSessionId(pAudioPlayer->mSessionId);
1780
1781    pAudioPlayer->mCallbackProtector.clear();
1782
1783    // explicit destructor
1784    pAudioPlayer->mAudioTrack.~sp();
1785    // note that SetPlayState(PLAYING) may still hold a reference
1786    pAudioPlayer->mCallbackProtector.~sp();
1787    pAudioPlayer->mAuxEffect.~sp();
1788    pAudioPlayer->mAPlayer.~sp();
1789
1790    return result;
1791}
1792
1793
1794//-----------------------------------------------------------------------------
1795SLresult android_audioPlayer_setPlaybackRateAndConstraints(CAudioPlayer *ap, SLpermille rate,
1796        SLuint32 constraints) {
1797    SLresult result = SL_RESULT_SUCCESS;
1798    switch(ap->mAndroidObjType) {
1799    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE: {
1800        // these asserts were already checked by the platform-independent layer
1801        assert((AUDIOTRACK_MIN_PLAYBACKRATE_PERMILLE <= rate) &&
1802                (rate <= AUDIOTRACK_MAX_PLAYBACKRATE_PERMILLE));
1803        assert(constraints & SL_RATEPROP_NOPITCHCORAUDIO);
1804        // get the content sample rate
1805        uint32_t contentRate = sles_to_android_sampleRate(ap->mSampleRateMilliHz);
1806        // apply the SL ES playback rate on the AudioTrack as a factor of its content sample rate
1807        if (ap->mAudioTrack != 0) {
1808            ap->mAudioTrack->setSampleRate(contentRate * (rate/1000.0f));
1809        }
1810        }
1811        break;
1812    case AUDIOPLAYER_FROM_URIFD: {
1813        assert((MEDIAPLAYER_MIN_PLAYBACKRATE_PERMILLE <= rate) &&
1814                        (rate <= MEDIAPLAYER_MAX_PLAYBACKRATE_PERMILLE));
1815        assert(constraints & SL_RATEPROP_NOPITCHCORAUDIO);
1816        // apply the SL ES playback rate on the GenericPlayer
1817        if (ap->mAPlayer != 0) {
1818            ap->mAPlayer->setPlaybackRate((int16_t)rate);
1819        }
1820        }
1821        break;
1822
1823    default:
1824        SL_LOGE("Unexpected object type %d", ap->mAndroidObjType);
1825        result = SL_RESULT_FEATURE_UNSUPPORTED;
1826        break;
1827    }
1828    return result;
1829}
1830
1831
1832//-----------------------------------------------------------------------------
1833// precondition
1834//  called with no lock held
1835//  ap != NULL
1836//  pItemCount != NULL
1837SLresult android_audioPlayer_metadata_getItemCount(CAudioPlayer *ap, SLuint32 *pItemCount) {
1838    if (ap->mAPlayer == 0) {
1839        return SL_RESULT_PARAMETER_INVALID;
1840    }
1841    switch(ap->mAndroidObjType) {
1842      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1843      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1844        {
1845            android::AudioSfDecoder* decoder =
1846                    static_cast<android::AudioSfDecoder*>(ap->mAPlayer.get());
1847            *pItemCount = decoder->getPcmFormatKeyCount();
1848        }
1849        break;
1850      default:
1851        *pItemCount = 0;
1852        break;
1853    }
1854    return SL_RESULT_SUCCESS;
1855}
1856
1857
1858//-----------------------------------------------------------------------------
1859// precondition
1860//  called with no lock held
1861//  ap != NULL
1862//  pKeySize != NULL
1863SLresult android_audioPlayer_metadata_getKeySize(CAudioPlayer *ap,
1864        SLuint32 index, SLuint32 *pKeySize) {
1865    if (ap->mAPlayer == 0) {
1866        return SL_RESULT_PARAMETER_INVALID;
1867    }
1868    SLresult res = SL_RESULT_SUCCESS;
1869    switch(ap->mAndroidObjType) {
1870      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1871      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1872        {
1873            android::AudioSfDecoder* decoder =
1874                    static_cast<android::AudioSfDecoder*>(ap->mAPlayer.get());
1875            SLuint32 keyNameSize = 0;
1876            if (!decoder->getPcmFormatKeySize(index, &keyNameSize)) {
1877                res = SL_RESULT_PARAMETER_INVALID;
1878            } else {
1879                // *pKeySize is the size of the region used to store the key name AND
1880                //   the information about the key (size, lang, encoding)
1881                *pKeySize = keyNameSize + sizeof(SLMetadataInfo);
1882            }
1883        }
1884        break;
1885      default:
1886        *pKeySize = 0;
1887        res = SL_RESULT_PARAMETER_INVALID;
1888        break;
1889    }
1890    return res;
1891}
1892
1893
1894//-----------------------------------------------------------------------------
1895// precondition
1896//  called with no lock held
1897//  ap != NULL
1898//  pKey != NULL
1899SLresult android_audioPlayer_metadata_getKey(CAudioPlayer *ap,
1900        SLuint32 index, SLuint32 size, SLMetadataInfo *pKey) {
1901    if (ap->mAPlayer == 0) {
1902        return SL_RESULT_PARAMETER_INVALID;
1903    }
1904    SLresult res = SL_RESULT_SUCCESS;
1905    switch(ap->mAndroidObjType) {
1906      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1907      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1908        {
1909            android::AudioSfDecoder* decoder =
1910                    static_cast<android::AudioSfDecoder*>(ap->mAPlayer.get());
1911            if ((size < sizeof(SLMetadataInfo) ||
1912                    (!decoder->getPcmFormatKeyName(index, size - sizeof(SLMetadataInfo),
1913                            (char*)pKey->data)))) {
1914                res = SL_RESULT_PARAMETER_INVALID;
1915            } else {
1916                // successfully retrieved the key value, update the other fields
1917                pKey->encoding = SL_CHARACTERENCODING_UTF8;
1918                memcpy((char *) pKey->langCountry, "en", 3);
1919                pKey->size = strlen((char*)pKey->data) + 1;
1920            }
1921        }
1922        break;
1923      default:
1924        res = SL_RESULT_PARAMETER_INVALID;
1925        break;
1926    }
1927    return res;
1928}
1929
1930
1931//-----------------------------------------------------------------------------
1932// precondition
1933//  called with no lock held
1934//  ap != NULL
1935//  pValueSize != NULL
1936SLresult android_audioPlayer_metadata_getValueSize(CAudioPlayer *ap,
1937        SLuint32 index, SLuint32 *pValueSize) {
1938    if (ap->mAPlayer == 0) {
1939        return SL_RESULT_PARAMETER_INVALID;
1940    }
1941    SLresult res = SL_RESULT_SUCCESS;
1942    switch(ap->mAndroidObjType) {
1943      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1944      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1945        {
1946            android::AudioSfDecoder* decoder =
1947                    static_cast<android::AudioSfDecoder*>(ap->mAPlayer.get());
1948            SLuint32 valueSize = 0;
1949            if (!decoder->getPcmFormatValueSize(index, &valueSize)) {
1950                res = SL_RESULT_PARAMETER_INVALID;
1951            } else {
1952                // *pValueSize is the size of the region used to store the key value AND
1953                //   the information about the value (size, lang, encoding)
1954                *pValueSize = valueSize + sizeof(SLMetadataInfo);
1955            }
1956        }
1957        break;
1958      default:
1959          *pValueSize = 0;
1960          res = SL_RESULT_PARAMETER_INVALID;
1961          break;
1962    }
1963    return res;
1964}
1965
1966
1967//-----------------------------------------------------------------------------
1968// precondition
1969//  called with no lock held
1970//  ap != NULL
1971//  pValue != NULL
1972SLresult android_audioPlayer_metadata_getValue(CAudioPlayer *ap,
1973        SLuint32 index, SLuint32 size, SLMetadataInfo *pValue) {
1974    if (ap->mAPlayer == 0) {
1975        return SL_RESULT_PARAMETER_INVALID;
1976    }
1977    SLresult res = SL_RESULT_SUCCESS;
1978    switch(ap->mAndroidObjType) {
1979      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1980      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1981        {
1982            android::AudioSfDecoder* decoder =
1983                    static_cast<android::AudioSfDecoder*>(ap->mAPlayer.get());
1984            pValue->encoding = SL_CHARACTERENCODING_BINARY;
1985            memcpy((char *) pValue->langCountry, "en", 3); // applicable here?
1986            SLuint32 valueSize = 0;
1987            if ((size < sizeof(SLMetadataInfo)
1988                    || (!decoder->getPcmFormatValueSize(index, &valueSize))
1989                    || (!decoder->getPcmFormatKeyValue(index, size - sizeof(SLMetadataInfo),
1990                            (SLuint32*)pValue->data)))) {
1991                res = SL_RESULT_PARAMETER_INVALID;
1992            } else {
1993                pValue->size = valueSize;
1994            }
1995        }
1996        break;
1997      default:
1998        res = SL_RESULT_PARAMETER_INVALID;
1999        break;
2000    }
2001    return res;
2002}
2003
2004//-----------------------------------------------------------------------------
2005// preconditions
2006//  ap != NULL
2007//  mutex is locked
2008//  play state has changed
2009void android_audioPlayer_setPlayState(CAudioPlayer *ap) {
2010
2011    SLuint32 playState = ap->mPlay.mState;
2012    AndroidObjectState objState = ap->mAndroidObjState;
2013
2014    switch(ap->mAndroidObjType) {
2015    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
2016        switch (playState) {
2017        case SL_PLAYSTATE_STOPPED:
2018            SL_LOGV("setting AudioPlayer to SL_PLAYSTATE_STOPPED");
2019            if (ap->mAudioTrack != 0) {
2020                ap->mAudioTrack->stop();
2021            }
2022            break;
2023        case SL_PLAYSTATE_PAUSED:
2024            SL_LOGV("setting AudioPlayer to SL_PLAYSTATE_PAUSED");
2025            if (ap->mAudioTrack != 0) {
2026                ap->mAudioTrack->pause();
2027            }
2028            break;
2029        case SL_PLAYSTATE_PLAYING:
2030            SL_LOGV("setting AudioPlayer to SL_PLAYSTATE_PLAYING");
2031            if (ap->mAudioTrack != 0) {
2032                // instead of ap->mAudioTrack->start();
2033                ap->mDeferredStart = true;
2034            }
2035            break;
2036        default:
2037            // checked by caller, should not happen
2038            break;
2039        }
2040        break;
2041
2042    case AUDIOPLAYER_FROM_URIFD:      // intended fall-through
2043    case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:     // intended fall-through
2044    case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:  // intended fall-through
2045    case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
2046        // FIXME report and use the return code to the lock mechanism, which is where play state
2047        //   changes are updated (see object_unlock_exclusive_attributes())
2048        aplayer_setPlayState(ap->mAPlayer, playState, &(ap->mAndroidObjState));
2049        break;
2050    default:
2051        SL_LOGE(ERROR_PLAYERSETPLAYSTATE_UNEXPECTED_OBJECT_TYPE_D, ap->mAndroidObjType);
2052        break;
2053    }
2054}
2055
2056
2057//-----------------------------------------------------------------------------
2058// call when either player event flags, marker position, or position update period changes
2059void android_audioPlayer_usePlayEventMask(CAudioPlayer *ap) {
2060    IPlay *pPlayItf = &ap->mPlay;
2061    SLuint32 eventFlags = pPlayItf->mEventFlags;
2062    /*switch(ap->mAndroidObjType) {
2063    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:*/
2064
2065    if (ap->mAPlayer != 0) {
2066        assert(ap->mAudioTrack == 0);
2067        ap->mAPlayer->setPlayEvents((int32_t) eventFlags, (int32_t) pPlayItf->mMarkerPosition,
2068                (int32_t) pPlayItf->mPositionUpdatePeriod);
2069        return;
2070    }
2071
2072    if (ap->mAudioTrack == 0) {
2073        return;
2074    }
2075
2076    if (eventFlags & SL_PLAYEVENT_HEADATMARKER) {
2077        ap->mAudioTrack->setMarkerPosition((uint32_t)((((int64_t)pPlayItf->mMarkerPosition
2078                * sles_to_android_sampleRate(ap->mSampleRateMilliHz)))/1000));
2079    } else {
2080        // clear marker
2081        ap->mAudioTrack->setMarkerPosition(0);
2082    }
2083
2084    if (eventFlags & SL_PLAYEVENT_HEADATNEWPOS) {
2085         ap->mAudioTrack->setPositionUpdatePeriod(
2086                (uint32_t)((((int64_t)pPlayItf->mPositionUpdatePeriod
2087                * sles_to_android_sampleRate(ap->mSampleRateMilliHz)))/1000));
2088    } else {
2089        // clear periodic update
2090        ap->mAudioTrack->setPositionUpdatePeriod(0);
2091    }
2092
2093    if (eventFlags & SL_PLAYEVENT_HEADATEND) {
2094        // nothing to do for SL_PLAYEVENT_HEADATEND, callback event will be checked against mask
2095    }
2096
2097    if (eventFlags & SL_PLAYEVENT_HEADMOVING) {
2098        // FIXME support SL_PLAYEVENT_HEADMOVING
2099        SL_LOGD("[ FIXME: IPlay_SetCallbackEventsMask(SL_PLAYEVENT_HEADMOVING) on an "
2100            "SL_OBJECTID_AUDIOPLAYER to be implemented ]");
2101    }
2102    if (eventFlags & SL_PLAYEVENT_HEADSTALLED) {
2103        // nothing to do for SL_PLAYEVENT_HEADSTALLED, callback event will be checked against mask
2104    }
2105
2106}
2107
2108
2109//-----------------------------------------------------------------------------
2110SLresult android_audioPlayer_getDuration(IPlay *pPlayItf, SLmillisecond *pDurMsec) {
2111    CAudioPlayer *ap = (CAudioPlayer *)pPlayItf->mThis;
2112    switch(ap->mAndroidObjType) {
2113
2114      case AUDIOPLAYER_FROM_URIFD:  // intended fall-through
2115      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE: {
2116        int32_t durationMsec = ANDROID_UNKNOWN_TIME;
2117        if (ap->mAPlayer != 0) {
2118            ap->mAPlayer->getDurationMsec(&durationMsec);
2119        }
2120        *pDurMsec = durationMsec == ANDROID_UNKNOWN_TIME ? SL_TIME_UNKNOWN : durationMsec;
2121        break;
2122      }
2123
2124      case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE: // intended fall-through
2125      case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
2126      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
2127      default: {
2128        *pDurMsec = SL_TIME_UNKNOWN;
2129      }
2130    }
2131    return SL_RESULT_SUCCESS;
2132}
2133
2134
2135//-----------------------------------------------------------------------------
2136void android_audioPlayer_getPosition(IPlay *pPlayItf, SLmillisecond *pPosMsec) {
2137    CAudioPlayer *ap = (CAudioPlayer *)pPlayItf->mThis;
2138    switch(ap->mAndroidObjType) {
2139
2140      case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
2141        if ((ap->mSampleRateMilliHz == UNKNOWN_SAMPLERATE) || (ap->mAudioTrack == 0)) {
2142            *pPosMsec = 0;
2143        } else {
2144            uint32_t positionInFrames;
2145            ap->mAudioTrack->getPosition(&positionInFrames);
2146            *pPosMsec = ((int64_t)positionInFrames * 1000) /
2147                    sles_to_android_sampleRate(ap->mSampleRateMilliHz);
2148        }
2149        break;
2150
2151      case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:    // intended fall-through
2152      case AUDIOPLAYER_FROM_URIFD:
2153      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
2154      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE: {
2155        int32_t posMsec = ANDROID_UNKNOWN_TIME;
2156        if (ap->mAPlayer != 0) {
2157            ap->mAPlayer->getPositionMsec(&posMsec);
2158        }
2159        *pPosMsec = posMsec == ANDROID_UNKNOWN_TIME ? 0 : posMsec;
2160        break;
2161      }
2162
2163      default:
2164        *pPosMsec = 0;
2165    }
2166}
2167
2168
2169//-----------------------------------------------------------------------------
2170SLresult android_audioPlayer_seek(CAudioPlayer *ap, SLmillisecond posMsec) {
2171    SLresult result = SL_RESULT_SUCCESS;
2172
2173    switch(ap->mAndroidObjType) {
2174
2175      case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:      // intended fall-through
2176      case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:
2177      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
2178        result = SL_RESULT_FEATURE_UNSUPPORTED;
2179        break;
2180
2181      case AUDIOPLAYER_FROM_URIFD:                   // intended fall-through
2182      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
2183        if (ap->mAPlayer != 0) {
2184            ap->mAPlayer->seek(posMsec);
2185        }
2186        break;
2187
2188      default:
2189        break;
2190    }
2191    return result;
2192}
2193
2194
2195//-----------------------------------------------------------------------------
2196SLresult android_audioPlayer_loop(CAudioPlayer *ap, SLboolean loopEnable) {
2197    SLresult result = SL_RESULT_SUCCESS;
2198
2199    switch (ap->mAndroidObjType) {
2200    case AUDIOPLAYER_FROM_URIFD:
2201    // case AUDIOPLAY_FROM_URIFD_TO_PCM_BUFFERQUEUE:
2202    //      would actually work, but what's the point?
2203      if (ap->mAPlayer != 0) {
2204        ap->mAPlayer->loop((bool)loopEnable);
2205      }
2206      break;
2207    default:
2208      result = SL_RESULT_FEATURE_UNSUPPORTED;
2209      break;
2210    }
2211    return result;
2212}
2213
2214
2215//-----------------------------------------------------------------------------
2216SLresult android_audioPlayer_setBufferingUpdateThresholdPerMille(CAudioPlayer *ap,
2217        SLpermille threshold) {
2218    SLresult result = SL_RESULT_SUCCESS;
2219
2220    switch (ap->mAndroidObjType) {
2221      case AUDIOPLAYER_FROM_URIFD:
2222        if (ap->mAPlayer != 0) {
2223            ap->mAPlayer->setBufferingUpdateThreshold(threshold / 10);
2224        }
2225        break;
2226
2227      default: {}
2228    }
2229
2230    return result;
2231}
2232
2233
2234//-----------------------------------------------------------------------------
2235void android_audioPlayer_bufferQueue_onRefilled_l(CAudioPlayer *ap) {
2236    // the AudioTrack associated with the AudioPlayer receiving audio from a PCM buffer
2237    // queue was stopped when the queue become empty, we restart as soon as a new buffer
2238    // has been enqueued since we're in playing state
2239    if (ap->mAudioTrack != 0) {
2240        // instead of ap->mAudioTrack->start();
2241        ap->mDeferredStart = true;
2242    }
2243
2244    // when the queue became empty, an underflow on the prefetch status itf was sent. Now the queue
2245    // has received new data, signal it has sufficient data
2246    if (IsInterfaceInitialized(&(ap->mObject), MPH_PREFETCHSTATUS)) {
2247        // we wouldn't have been called unless we were previously in the underflow state
2248        assert(SL_PREFETCHSTATUS_UNDERFLOW == ap->mPrefetchStatus.mStatus);
2249        assert(0 == ap->mPrefetchStatus.mLevel);
2250        ap->mPrefetchStatus.mStatus = SL_PREFETCHSTATUS_SUFFICIENTDATA;
2251        ap->mPrefetchStatus.mLevel = 1000;
2252        // callback or no callback?
2253        SLuint32 prefetchEvents = ap->mPrefetchStatus.mCallbackEventsMask &
2254                (SL_PREFETCHEVENT_STATUSCHANGE | SL_PREFETCHEVENT_FILLLEVELCHANGE);
2255        if (SL_PREFETCHEVENT_NONE != prefetchEvents) {
2256            ap->mPrefetchStatus.mDeferredPrefetchCallback = ap->mPrefetchStatus.mCallback;
2257            ap->mPrefetchStatus.mDeferredPrefetchContext  = ap->mPrefetchStatus.mContext;
2258            ap->mPrefetchStatus.mDeferredPrefetchEvents   = prefetchEvents;
2259        }
2260    }
2261}
2262
2263
2264//-----------------------------------------------------------------------------
2265/*
2266 * BufferQueue::Clear
2267 */
2268SLresult android_audioPlayer_bufferQueue_onClear(CAudioPlayer *ap) {
2269    SLresult result = SL_RESULT_SUCCESS;
2270
2271    switch (ap->mAndroidObjType) {
2272    //-----------------------------------
2273    // AudioTrack
2274    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
2275        if (ap->mAudioTrack != 0) {
2276            ap->mAudioTrack->flush();
2277        }
2278        break;
2279    default:
2280        result = SL_RESULT_INTERNAL_ERROR;
2281        break;
2282    }
2283
2284    return result;
2285}
2286
2287
2288//-----------------------------------------------------------------------------
2289void android_audioPlayer_androidBufferQueue_clear_l(CAudioPlayer *ap) {
2290    switch (ap->mAndroidObjType) {
2291    case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:
2292      if (ap->mAPlayer != 0) {
2293        android::StreamPlayer* splr = static_cast<android::StreamPlayer*>(ap->mAPlayer.get());
2294        splr->appClear_l();
2295      } break;
2296    case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
2297      // nothing to do here, fall through
2298    default:
2299      break;
2300    }
2301}
2302
2303void android_audioPlayer_androidBufferQueue_onRefilled_l(CAudioPlayer *ap) {
2304    switch (ap->mAndroidObjType) {
2305    case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:
2306      if (ap->mAPlayer != 0) {
2307        android::StreamPlayer* splr = static_cast<android::StreamPlayer*>(ap->mAPlayer.get());
2308        splr->queueRefilled();
2309      } break;
2310    case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
2311      // FIXME this may require waking up the decoder if it is currently starved and isn't polling
2312    default:
2313      break;
2314    }
2315}
2316