AudioPlayer_to_android.cpp revision 71065fbf12abafd4c2a0dc85c81f13b564ff69fb 
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#include "android/channels.h"
24
25#include <fcntl.h>
26#include <sys/stat.h>
27
28#include <system/audio.h>
29
30template class android::KeyedVector<SLuint32, android::AudioEffect* > ;
31
32#define KEY_STREAM_TYPE_PARAMSIZE  sizeof(SLint32)
33
34#define AUDIOTRACK_MIN_PLAYBACKRATE_PERMILLE  500
35#define AUDIOTRACK_MAX_PLAYBACKRATE_PERMILLE 2000
36
37#define MEDIAPLAYER_MIN_PLAYBACKRATE_PERMILLE AUDIOTRACK_MIN_PLAYBACKRATE_PERMILLE
38#define MEDIAPLAYER_MAX_PLAYBACKRATE_PERMILLE AUDIOTRACK_MAX_PLAYBACKRATE_PERMILLE
39
40//-----------------------------------------------------------------------------
41// FIXME this method will be absorbed into android_audioPlayer_setPlayState() once
42//       bufferqueue and uri/fd playback are moved under the GenericPlayer C++ object
43SLresult aplayer_setPlayState(const android::sp<android::GenericPlayer> &ap, SLuint32 playState,
44        AndroidObjectState* pObjState) {
45    SLresult result = SL_RESULT_SUCCESS;
46    AndroidObjectState objState = *pObjState;
47
48    switch (playState) {
49     case SL_PLAYSTATE_STOPPED:
50         SL_LOGV("setting GenericPlayer to SL_PLAYSTATE_STOPPED");
51         ap->stop();
52         break;
53     case SL_PLAYSTATE_PAUSED:
54         SL_LOGV("setting GenericPlayer to SL_PLAYSTATE_PAUSED");
55         switch (objState) {
56         case ANDROID_UNINITIALIZED:
57             *pObjState = ANDROID_PREPARING;
58             ap->prepare();
59             break;
60         case ANDROID_PREPARING:
61             break;
62         case ANDROID_READY:
63             ap->pause();
64             break;
65         default:
66             SL_LOGE(ERROR_PLAYERSETPLAYSTATE_INVALID_OBJECT_STATE_D, playState);
67             result = SL_RESULT_INTERNAL_ERROR;
68             break;
69         }
70         break;
71     case SL_PLAYSTATE_PLAYING: {
72         SL_LOGV("setting GenericPlayer to SL_PLAYSTATE_PLAYING");
73         switch (objState) {
74         case ANDROID_UNINITIALIZED:
75             *pObjState = ANDROID_PREPARING;
76             ap->prepare();
77             // intended fall through
78         case ANDROID_PREPARING:
79             // intended fall through
80         case ANDROID_READY:
81             ap->play();
82             break;
83         default:
84             SL_LOGE(ERROR_PLAYERSETPLAYSTATE_INVALID_OBJECT_STATE_D, playState);
85             result = SL_RESULT_INTERNAL_ERROR;
86             break;
87         }
88         }
89         break;
90     default:
91         // checked by caller, should not happen
92         SL_LOGE(ERROR_SHOULDNT_BE_HERE_S, "aplayer_setPlayState");
93         result = SL_RESULT_INTERNAL_ERROR;
94         break;
95     }
96
97    return result;
98}
99
100
101//-----------------------------------------------------------------------------
102// Callback associated with a AudioToCbRenderer of an SL ES AudioPlayer that gets its data
103// from a URI or FD, to write the decoded audio data to a buffer queue
104static size_t adecoder_writeToBufferQueue(const uint8_t *data, size_t size, CAudioPlayer* ap) {
105    if (!android::CallbackProtector::enterCbIfOk(ap->mCallbackProtector)) {
106        // it is not safe to enter the callback (the player is about to go away)
107        return 0;
108    }
109    size_t sizeConsumed = 0;
110    SL_LOGD("received %d bytes from decoder", size);
111    slBufferQueueCallback callback = NULL;
112    void * callbackPContext = NULL;
113
114    // push decoded data to the buffer queue
115    object_lock_exclusive(&ap->mObject);
116
117    if (ap->mBufferQueue.mState.count != 0) {
118        assert(ap->mBufferQueue.mFront != ap->mBufferQueue.mRear);
119
120        BufferHeader *oldFront = ap->mBufferQueue.mFront;
121        BufferHeader *newFront = &oldFront[1];
122
123        uint8_t *pDest = (uint8_t *)oldFront->mBuffer + ap->mBufferQueue.mSizeConsumed;
124        if (ap->mBufferQueue.mSizeConsumed + size < oldFront->mSize) {
125            // room to consume the whole or rest of the decoded data in one shot
126            ap->mBufferQueue.mSizeConsumed += size;
127            // consume data but no callback to the BufferQueue interface here
128            memcpy(pDest, data, size);
129            sizeConsumed = size;
130        } else {
131            // push as much as possible of the decoded data into the buffer queue
132            sizeConsumed = oldFront->mSize - ap->mBufferQueue.mSizeConsumed;
133
134            // the buffer at the head of the buffer queue is full, update the state
135            ap->mBufferQueue.mSizeConsumed = 0;
136            if (newFront == &ap->mBufferQueue.mArray[ap->mBufferQueue.mNumBuffers + 1]) {
137                newFront = ap->mBufferQueue.mArray;
138            }
139            ap->mBufferQueue.mFront = newFront;
140
141            ap->mBufferQueue.mState.count--;
142            ap->mBufferQueue.mState.playIndex++;
143            // consume data
144            memcpy(pDest, data, sizeConsumed);
145            // data has been copied to the buffer, and the buffer queue state has been updated
146            // we will notify the client if applicable
147            callback = ap->mBufferQueue.mCallback;
148            // save callback data
149            callbackPContext = ap->mBufferQueue.mContext;
150        }
151
152    } else {
153        // no available buffers in the queue to write the decoded data
154        sizeConsumed = 0;
155    }
156
157    object_unlock_exclusive(&ap->mObject);
158    // notify client
159    if (NULL != callback) {
160        (*callback)(&ap->mBufferQueue.mItf, callbackPContext);
161    }
162
163    ap->mCallbackProtector->exitCb();
164    return sizeConsumed;
165}
166
167
168//-----------------------------------------------------------------------------
169#define LEFT_CHANNEL_MASK  AUDIO_CHANNEL_OUT_FRONT_LEFT
170#define RIGHT_CHANNEL_MASK AUDIO_CHANNEL_OUT_FRONT_RIGHT
171
172void android_audioPlayer_volumeUpdate(CAudioPlayer* ap)
173{
174    assert(ap != NULL);
175
176    // the source's channel count, where zero means unknown
177    SLuint8 channelCount = ap->mNumChannels;
178
179    // whether each channel is audible
180    bool leftAudibilityFactor, rightAudibilityFactor;
181
182    // mute has priority over solo
183    if (channelCount >= STEREO_CHANNELS) {
184        if (ap->mMuteMask & LEFT_CHANNEL_MASK) {
185            // left muted
186            leftAudibilityFactor = false;
187        } else {
188            // left not muted
189            if (ap->mSoloMask & LEFT_CHANNEL_MASK) {
190                // left soloed
191                leftAudibilityFactor = true;
192            } else {
193                // left not soloed
194                if (ap->mSoloMask & RIGHT_CHANNEL_MASK) {
195                    // right solo silences left
196                    leftAudibilityFactor = false;
197                } else {
198                    // left and right are not soloed, and left is not muted
199                    leftAudibilityFactor = true;
200                }
201            }
202        }
203
204        if (ap->mMuteMask & RIGHT_CHANNEL_MASK) {
205            // right muted
206            rightAudibilityFactor = false;
207        } else {
208            // right not muted
209            if (ap->mSoloMask & RIGHT_CHANNEL_MASK) {
210                // right soloed
211                rightAudibilityFactor = true;
212            } else {
213                // right not soloed
214                if (ap->mSoloMask & LEFT_CHANNEL_MASK) {
215                    // left solo silences right
216                    rightAudibilityFactor = false;
217                } else {
218                    // left and right are not soloed, and right is not muted
219                    rightAudibilityFactor = true;
220                }
221            }
222        }
223
224    // channel mute and solo are ignored for mono and unknown channel count sources
225    } else {
226        leftAudibilityFactor = true;
227        rightAudibilityFactor = true;
228    }
229
230    // compute volumes without setting
231    const bool audibilityFactors[2] = {leftAudibilityFactor, rightAudibilityFactor};
232    float volumes[2];
233    android_player_volumeUpdate(volumes, &ap->mVolume, channelCount, ap->mAmplFromDirectLevel,
234            audibilityFactors);
235    float leftVol = volumes[0], rightVol = volumes[1];
236
237    // set volume on the underlying media player or audio track
238    if (ap->mAPlayer != 0) {
239        ap->mAPlayer->setVolume(leftVol, rightVol);
240    } else if (ap->mAudioTrack != 0) {
241        ap->mAudioTrack->setVolume(leftVol, rightVol);
242    }
243
244    // changes in the AudioPlayer volume must be reflected in the send level:
245    //  in SLEffectSendItf or in SLAndroidEffectSendItf?
246    // FIXME replace interface test by an internal API once we have one.
247    if (NULL != ap->mEffectSend.mItf) {
248        for (unsigned int i=0 ; i<AUX_MAX ; i++) {
249            if (ap->mEffectSend.mEnableLevels[i].mEnable) {
250                android_fxSend_setSendLevel(ap,
251                        ap->mEffectSend.mEnableLevels[i].mSendLevel + ap->mVolume.mLevel);
252                // there's a single aux bus on Android, so we can stop looking once the first
253                // aux effect is found.
254                break;
255            }
256        }
257    } else if (NULL != ap->mAndroidEffectSend.mItf) {
258        android_fxSend_setSendLevel(ap, ap->mAndroidEffectSend.mSendLevel + ap->mVolume.mLevel);
259    }
260}
261
262// Called by android_audioPlayer_volumeUpdate and android_mediaPlayer_volumeUpdate to compute
263// volumes, but setting volumes is handled by the caller.
264
265void android_player_volumeUpdate(float *pVolumes /*[2]*/, const IVolume *volumeItf, unsigned
266channelCount, float amplFromDirectLevel, const bool *audibilityFactors /*[2]*/)
267{
268    assert(pVolumes != NULL);
269    assert(volumeItf != NULL);
270    // OK for audibilityFactors to be NULL
271
272    bool leftAudibilityFactor, rightAudibilityFactor;
273
274    // apply player mute factor
275    // note that AudioTrack has mute() but not MediaPlayer, so it's easier to use volume
276    // to mute for both rather than calling mute() for AudioTrack
277
278    // player is muted
279    if (volumeItf->mMute) {
280        leftAudibilityFactor = false;
281        rightAudibilityFactor = false;
282    // player isn't muted, and channel mute/solo audibility factors are available (AudioPlayer)
283    } else if (audibilityFactors != NULL) {
284        leftAudibilityFactor = audibilityFactors[0];
285        rightAudibilityFactor = audibilityFactors[1];
286    // player isn't muted, and channel mute/solo audibility factors aren't available (MediaPlayer)
287    } else {
288        leftAudibilityFactor = true;
289        rightAudibilityFactor = true;
290    }
291
292    // compute amplification as the combination of volume level and stereo position
293    //   amplification (or attenuation) from volume level
294    float amplFromVolLevel = sles_to_android_amplification(volumeItf->mLevel);
295    //   amplification from direct level (changed in SLEffectSendtItf and SLAndroidEffectSendItf)
296    float leftVol  = amplFromVolLevel * amplFromDirectLevel;
297    float rightVol = leftVol;
298
299    // amplification from stereo position
300    if (volumeItf->mEnableStereoPosition) {
301        // Left/right amplification (can be attenuations) factors derived for the StereoPosition
302        float amplFromStereoPos[STEREO_CHANNELS];
303        // panning law depends on content channel count: mono to stereo panning vs stereo balance
304        if (1 == channelCount) {
305            // mono to stereo panning
306            double theta = (1000+volumeItf->mStereoPosition)*M_PI_4/1000.0f; // 0 <= theta <= Pi/2
307            amplFromStereoPos[0] = cos(theta);
308            amplFromStereoPos[1] = sin(theta);
309        // channel count is 0 (unknown), 2 (stereo), or > 2 (multi-channel)
310        } else {
311            // stereo balance
312            if (volumeItf->mStereoPosition > 0) {
313                amplFromStereoPos[0] = (1000-volumeItf->mStereoPosition)/1000.0f;
314                amplFromStereoPos[1] = 1.0f;
315            } else {
316                amplFromStereoPos[0] = 1.0f;
317                amplFromStereoPos[1] = (1000+volumeItf->mStereoPosition)/1000.0f;
318            }
319        }
320        leftVol  *= amplFromStereoPos[0];
321        rightVol *= amplFromStereoPos[1];
322    }
323
324    // apply audibility factors
325    if (!leftAudibilityFactor) {
326        leftVol = 0.0;
327    }
328    if (!rightAudibilityFactor) {
329        rightVol = 0.0;
330    }
331
332    // return the computed volumes
333    pVolumes[0] = leftVol;
334    pVolumes[1] = rightVol;
335}
336
337//-----------------------------------------------------------------------------
338void audioTrack_handleMarker_lockPlay(CAudioPlayer* ap) {
339    //SL_LOGV("received event EVENT_MARKER from AudioTrack");
340    slPlayCallback callback = NULL;
341    void* callbackPContext = NULL;
342
343    interface_lock_shared(&ap->mPlay);
344    callback = ap->mPlay.mCallback;
345    callbackPContext = ap->mPlay.mContext;
346    interface_unlock_shared(&ap->mPlay);
347
348    if (NULL != callback) {
349        // getting this event implies SL_PLAYEVENT_HEADATMARKER was set in the event mask
350        (*callback)(&ap->mPlay.mItf, callbackPContext, SL_PLAYEVENT_HEADATMARKER);
351    }
352}
353
354//-----------------------------------------------------------------------------
355void audioTrack_handleNewPos_lockPlay(CAudioPlayer* ap) {
356    //SL_LOGV("received event EVENT_NEW_POS from AudioTrack");
357    slPlayCallback callback = NULL;
358    void* callbackPContext = NULL;
359
360    interface_lock_shared(&ap->mPlay);
361    callback = ap->mPlay.mCallback;
362    callbackPContext = ap->mPlay.mContext;
363    interface_unlock_shared(&ap->mPlay);
364
365    if (NULL != callback) {
366        // getting this event implies SL_PLAYEVENT_HEADATNEWPOS was set in the event mask
367        (*callback)(&ap->mPlay.mItf, callbackPContext, SL_PLAYEVENT_HEADATNEWPOS);
368    }
369}
370
371
372//-----------------------------------------------------------------------------
373void audioTrack_handleUnderrun_lockPlay(CAudioPlayer* ap) {
374    slPlayCallback callback = NULL;
375    void* callbackPContext = NULL;
376
377    interface_lock_shared(&ap->mPlay);
378    callback = ap->mPlay.mCallback;
379    callbackPContext = ap->mPlay.mContext;
380    bool headStalled = (ap->mPlay.mEventFlags & SL_PLAYEVENT_HEADSTALLED) != 0;
381    interface_unlock_shared(&ap->mPlay);
382
383    if ((NULL != callback) && headStalled) {
384        (*callback)(&ap->mPlay.mItf, callbackPContext, SL_PLAYEVENT_HEADSTALLED);
385    }
386}
387
388
389//-----------------------------------------------------------------------------
390/**
391 * post-condition: play state of AudioPlayer is SL_PLAYSTATE_PAUSED if setPlayStateToPaused is true
392 *
393 * note: a conditional flag, setPlayStateToPaused, is used here to specify whether the play state
394 *       needs to be changed when the player reaches the end of the content to play. This is
395 *       relative to what the specification describes for buffer queues vs the
396 *       SL_PLAYEVENT_HEADATEND event. In the OpenSL ES specification 1.0.1:
397 *        - section 8.12 SLBufferQueueItf states "In the case of starvation due to insufficient
398 *          buffers in the queue, the playing of audio data stops. The player remains in the
399 *          SL_PLAYSTATE_PLAYING state."
400 *        - section 9.2.31 SL_PLAYEVENT states "SL_PLAYEVENT_HEADATEND Playback head is at the end
401 *          of the current content and the player has paused."
402 */
403void audioPlayer_dispatch_headAtEnd_lockPlay(CAudioPlayer *ap, bool setPlayStateToPaused,
404        bool needToLock) {
405    //SL_LOGV("ap=%p, setPlayStateToPaused=%d, needToLock=%d", ap, setPlayStateToPaused,
406    //        needToLock);
407    slPlayCallback playCallback = NULL;
408    void * playContext = NULL;
409    // SLPlayItf callback or no callback?
410    if (needToLock) {
411        interface_lock_exclusive(&ap->mPlay);
412    }
413    if (ap->mPlay.mEventFlags & SL_PLAYEVENT_HEADATEND) {
414        playCallback = ap->mPlay.mCallback;
415        playContext = ap->mPlay.mContext;
416    }
417    if (setPlayStateToPaused) {
418        ap->mPlay.mState = SL_PLAYSTATE_PAUSED;
419    }
420    if (needToLock) {
421        interface_unlock_exclusive(&ap->mPlay);
422    }
423    // enqueue callback with no lock held
424    if (NULL != playCallback) {
425#ifndef USE_ASYNCHRONOUS_PLAY_CALLBACK
426        (*playCallback)(&ap->mPlay.mItf, playContext, SL_PLAYEVENT_HEADATEND);
427#else
428        SLresult result = EnqueueAsyncCallback_ppi(ap, playCallback, &ap->mPlay.mItf, playContext,
429                SL_PLAYEVENT_HEADATEND);
430        if (SL_RESULT_SUCCESS != result) {
431            ALOGW("Callback %p(%p, %p, SL_PLAYEVENT_HEADATEND) dropped", playCallback,
432                    &ap->mPlay.mItf, playContext);
433        }
434#endif
435    }
436
437}
438
439
440//-----------------------------------------------------------------------------
441SLresult audioPlayer_setStreamType(CAudioPlayer* ap, SLint32 type) {
442    SLresult result = SL_RESULT_SUCCESS;
443    SL_LOGV("type %d", type);
444
445    audio_stream_type_t newStreamType = ANDROID_DEFAULT_OUTPUT_STREAM_TYPE;
446    switch (type) {
447    case SL_ANDROID_STREAM_VOICE:
448        newStreamType = AUDIO_STREAM_VOICE_CALL;
449        break;
450    case SL_ANDROID_STREAM_SYSTEM:
451        newStreamType = AUDIO_STREAM_SYSTEM;
452        break;
453    case SL_ANDROID_STREAM_RING:
454        newStreamType = AUDIO_STREAM_RING;
455        break;
456    case SL_ANDROID_STREAM_MEDIA:
457        newStreamType = AUDIO_STREAM_MUSIC;
458        break;
459    case SL_ANDROID_STREAM_ALARM:
460        newStreamType = AUDIO_STREAM_ALARM;
461        break;
462    case SL_ANDROID_STREAM_NOTIFICATION:
463        newStreamType = AUDIO_STREAM_NOTIFICATION;
464        break;
465    default:
466        SL_LOGE(ERROR_PLAYERSTREAMTYPE_SET_UNKNOWN_TYPE);
467        result = SL_RESULT_PARAMETER_INVALID;
468        break;
469    }
470
471    // stream type needs to be set before the object is realized
472    // (ap->mAudioTrack is supposed to be NULL until then)
473    if (SL_OBJECT_STATE_UNREALIZED != ap->mObject.mState) {
474        SL_LOGE(ERROR_PLAYERSTREAMTYPE_REALIZED);
475        result = SL_RESULT_PRECONDITIONS_VIOLATED;
476    } else {
477        ap->mStreamType = newStreamType;
478    }
479
480    return result;
481}
482
483
484//-----------------------------------------------------------------------------
485SLresult audioPlayer_getStreamType(CAudioPlayer* ap, SLint32 *pType) {
486    SLresult result = SL_RESULT_SUCCESS;
487
488    switch (ap->mStreamType) {
489    case AUDIO_STREAM_VOICE_CALL:
490        *pType = SL_ANDROID_STREAM_VOICE;
491        break;
492    case AUDIO_STREAM_SYSTEM:
493        *pType = SL_ANDROID_STREAM_SYSTEM;
494        break;
495    case AUDIO_STREAM_RING:
496        *pType = SL_ANDROID_STREAM_RING;
497        break;
498    case AUDIO_STREAM_DEFAULT:
499    case AUDIO_STREAM_MUSIC:
500        *pType = SL_ANDROID_STREAM_MEDIA;
501        break;
502    case AUDIO_STREAM_ALARM:
503        *pType = SL_ANDROID_STREAM_ALARM;
504        break;
505    case AUDIO_STREAM_NOTIFICATION:
506        *pType = SL_ANDROID_STREAM_NOTIFICATION;
507        break;
508    default:
509        result = SL_RESULT_INTERNAL_ERROR;
510        *pType = SL_ANDROID_STREAM_MEDIA;
511        break;
512    }
513
514    return result;
515}
516
517
518//-----------------------------------------------------------------------------
519void audioPlayer_auxEffectUpdate(CAudioPlayer* ap) {
520    if ((ap->mAudioTrack != 0) && (ap->mAuxEffect != 0)) {
521        android_fxSend_attach(ap, true, ap->mAuxEffect, ap->mVolume.mLevel + ap->mAuxSendLevel);
522    }
523}
524
525
526//-----------------------------------------------------------------------------
527/*
528 * returns true if the given data sink is supported by AudioPlayer that doesn't
529 *   play to an OutputMix object, false otherwise
530 *
531 * pre-condition: the locator of the audio sink is not SL_DATALOCATOR_OUTPUTMIX
532 */
533bool audioPlayer_isSupportedNonOutputMixSink(const SLDataSink* pAudioSink) {
534    bool result = true;
535    const SLuint32 sinkLocatorType = *(SLuint32 *)pAudioSink->pLocator;
536    const SLuint32 sinkFormatType = *(SLuint32 *)pAudioSink->pFormat;
537
538    switch (sinkLocatorType) {
539
540    case SL_DATALOCATOR_BUFFERQUEUE:
541    case SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE:
542        if (SL_DATAFORMAT_PCM != sinkFormatType) {
543            SL_LOGE("Unsupported sink format 0x%x, expected SL_DATAFORMAT_PCM",
544                    (unsigned)sinkFormatType);
545            result = false;
546        }
547        // it's no use checking the PCM format fields because additional characteristics
548        // such as the number of channels, or sample size are unknown to the player at this stage
549        break;
550
551    default:
552        SL_LOGE("Unsupported sink locator type 0x%x", (unsigned)sinkLocatorType);
553        result = false;
554        break;
555    }
556
557    return result;
558}
559
560
561//-----------------------------------------------------------------------------
562/*
563 * returns the Android object type if the locator type combinations for the source and sinks
564 *   are supported by this implementation, INVALID_TYPE otherwise
565 */
566static
567AndroidObjectType audioPlayer_getAndroidObjectTypeForSourceSink(const CAudioPlayer *ap) {
568
569    const SLDataSource *pAudioSrc = &ap->mDataSource.u.mSource;
570    const SLDataSink *pAudioSnk = &ap->mDataSink.u.mSink;
571    const SLuint32 sourceLocatorType = *(SLuint32 *)pAudioSrc->pLocator;
572    const SLuint32 sinkLocatorType = *(SLuint32 *)pAudioSnk->pLocator;
573    AndroidObjectType type = INVALID_TYPE;
574
575    //--------------------------------------
576    // Sink / source matching check:
577    // the following source / sink combinations are supported
578    //     SL_DATALOCATOR_BUFFERQUEUE                / SL_DATALOCATOR_OUTPUTMIX
579    //     SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE   / SL_DATALOCATOR_OUTPUTMIX
580    //     SL_DATALOCATOR_URI                        / SL_DATALOCATOR_OUTPUTMIX
581    //     SL_DATALOCATOR_ANDROIDFD                  / SL_DATALOCATOR_OUTPUTMIX
582    //     SL_DATALOCATOR_ANDROIDBUFFERQUEUE         / SL_DATALOCATOR_OUTPUTMIX
583    //     SL_DATALOCATOR_ANDROIDBUFFERQUEUE         / SL_DATALOCATOR_BUFFERQUEUE
584    //     SL_DATALOCATOR_URI                        / SL_DATALOCATOR_BUFFERQUEUE
585    //     SL_DATALOCATOR_ANDROIDFD                  / SL_DATALOCATOR_BUFFERQUEUE
586    //     SL_DATALOCATOR_URI                        / SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE
587    //     SL_DATALOCATOR_ANDROIDFD                  / SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE
588    switch (sinkLocatorType) {
589
590    case SL_DATALOCATOR_OUTPUTMIX: {
591        switch (sourceLocatorType) {
592
593        //   Buffer Queue to AudioTrack
594        case SL_DATALOCATOR_BUFFERQUEUE:
595        case SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE:
596            type = AUDIOPLAYER_FROM_PCM_BUFFERQUEUE;
597            break;
598
599        //   URI or FD to MediaPlayer
600        case SL_DATALOCATOR_URI:
601        case SL_DATALOCATOR_ANDROIDFD:
602            type = AUDIOPLAYER_FROM_URIFD;
603            break;
604
605        //   Android BufferQueue to MediaPlayer (shared memory streaming)
606        case SL_DATALOCATOR_ANDROIDBUFFERQUEUE:
607            type = AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE;
608            break;
609
610        default:
611            SL_LOGE("Source data locator 0x%x not supported with SL_DATALOCATOR_OUTPUTMIX sink",
612                    (unsigned)sourceLocatorType);
613            break;
614        }
615        }
616        break;
617
618    case SL_DATALOCATOR_BUFFERQUEUE:
619    case SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE:
620        switch (sourceLocatorType) {
621
622        //   URI or FD decoded to PCM in a buffer queue
623        case SL_DATALOCATOR_URI:
624        case SL_DATALOCATOR_ANDROIDFD:
625            type = AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE;
626            break;
627
628        //   AAC ADTS Android buffer queue decoded to PCM in a buffer queue
629        case SL_DATALOCATOR_ANDROIDBUFFERQUEUE:
630            type = AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE;
631            break;
632
633        default:
634            SL_LOGE("Source data locator 0x%x not supported with SL_DATALOCATOR_BUFFERQUEUE sink",
635                    (unsigned)sourceLocatorType);
636            break;
637        }
638        break;
639
640    default:
641        SL_LOGE("Sink data locator 0x%x not supported", (unsigned)sinkLocatorType);
642        break;
643    }
644
645    return type;
646}
647
648
649//-----------------------------------------------------------------------------
650/*
651 * Callback associated with an SfPlayer of an SL ES AudioPlayer that gets its data
652 * from a URI or FD, for prepare, prefetch, and play events
653 */
654static void sfplayer_handlePrefetchEvent(int event, int data1, int data2, void* user) {
655
656    // FIXME see similar code and comment in player_handleMediaPlayerEventNotifications
657
658    if (NULL == user) {
659        return;
660    }
661
662    CAudioPlayer *ap = (CAudioPlayer *)user;
663    if (!android::CallbackProtector::enterCbIfOk(ap->mCallbackProtector)) {
664        // it is not safe to enter the callback (the track is about to go away)
665        return;
666    }
667    union {
668        char c[sizeof(int)];
669        int i;
670    } u;
671    u.i = event;
672    SL_LOGV("sfplayer_handlePrefetchEvent(event='%c%c%c%c' (%d), data1=%d, data2=%d, user=%p) from "
673            "SfAudioPlayer", u.c[3], u.c[2], u.c[1], u.c[0], event, data1, data2, user);
674    switch (event) {
675
676    case android::GenericPlayer::kEventPrepared: {
677        SL_LOGV("Received GenericPlayer::kEventPrepared for CAudioPlayer %p", ap);
678
679        // assume no callback
680        slPrefetchCallback callback = NULL;
681        void* callbackPContext;
682        SLuint32 events;
683
684        object_lock_exclusive(&ap->mObject);
685
686        // mark object as prepared; same state is used for successful or unsuccessful prepare
687        assert(ap->mAndroidObjState == ANDROID_PREPARING);
688        ap->mAndroidObjState = ANDROID_READY;
689
690        if (PLAYER_SUCCESS == data1) {
691            // Most of successful prepare completion for ap->mAPlayer
692            // is handled by GenericPlayer and its subclasses.
693        } else {
694            // SfPlayer prepare() failed prefetching, there is no event in SLPrefetchStatus to
695            //  indicate a prefetch error, so we signal it by sending simultaneously two events:
696            //  - SL_PREFETCHEVENT_FILLLEVELCHANGE with a level of 0
697            //  - SL_PREFETCHEVENT_STATUSCHANGE with a status of SL_PREFETCHSTATUS_UNDERFLOW
698            SL_LOGE(ERROR_PLAYER_PREFETCH_d, data1);
699            if (IsInterfaceInitialized(&ap->mObject, MPH_PREFETCHSTATUS)) {
700                ap->mPrefetchStatus.mLevel = 0;
701                ap->mPrefetchStatus.mStatus = SL_PREFETCHSTATUS_UNDERFLOW;
702                if (!(~ap->mPrefetchStatus.mCallbackEventsMask &
703                        (SL_PREFETCHEVENT_FILLLEVELCHANGE | SL_PREFETCHEVENT_STATUSCHANGE))) {
704                    callback = ap->mPrefetchStatus.mCallback;
705                    callbackPContext = ap->mPrefetchStatus.mContext;
706                    events = SL_PREFETCHEVENT_FILLLEVELCHANGE | SL_PREFETCHEVENT_STATUSCHANGE;
707                }
708            }
709        }
710
711        object_unlock_exclusive(&ap->mObject);
712
713        // callback with no lock held
714        if (NULL != callback) {
715            (*callback)(&ap->mPrefetchStatus.mItf, callbackPContext, events);
716        }
717
718    }
719    break;
720
721    case android::GenericPlayer::kEventPrefetchFillLevelUpdate : {
722        if (!IsInterfaceInitialized(&ap->mObject, MPH_PREFETCHSTATUS)) {
723            break;
724        }
725        slPrefetchCallback callback = NULL;
726        void* callbackPContext = NULL;
727
728        // SLPrefetchStatusItf callback or no callback?
729        interface_lock_exclusive(&ap->mPrefetchStatus);
730        if (ap->mPrefetchStatus.mCallbackEventsMask & SL_PREFETCHEVENT_FILLLEVELCHANGE) {
731            callback = ap->mPrefetchStatus.mCallback;
732            callbackPContext = ap->mPrefetchStatus.mContext;
733        }
734        ap->mPrefetchStatus.mLevel = (SLpermille)data1;
735        interface_unlock_exclusive(&ap->mPrefetchStatus);
736
737        // callback with no lock held
738        if (NULL != callback) {
739            (*callback)(&ap->mPrefetchStatus.mItf, callbackPContext,
740                    SL_PREFETCHEVENT_FILLLEVELCHANGE);
741        }
742    }
743    break;
744
745    case android::GenericPlayer::kEventPrefetchStatusChange: {
746        if (!IsInterfaceInitialized(&ap->mObject, MPH_PREFETCHSTATUS)) {
747            break;
748        }
749        slPrefetchCallback callback = NULL;
750        void* callbackPContext = NULL;
751
752        // SLPrefetchStatusItf callback or no callback?
753        object_lock_exclusive(&ap->mObject);
754        if (ap->mPrefetchStatus.mCallbackEventsMask & SL_PREFETCHEVENT_STATUSCHANGE) {
755            callback = ap->mPrefetchStatus.mCallback;
756            callbackPContext = ap->mPrefetchStatus.mContext;
757        }
758        if (data1 >= android::kStatusIntermediate) {
759            ap->mPrefetchStatus.mStatus = SL_PREFETCHSTATUS_SUFFICIENTDATA;
760        } else if (data1 < android::kStatusIntermediate) {
761            ap->mPrefetchStatus.mStatus = SL_PREFETCHSTATUS_UNDERFLOW;
762        }
763        object_unlock_exclusive(&ap->mObject);
764
765        // callback with no lock held
766        if (NULL != callback) {
767            (*callback)(&ap->mPrefetchStatus.mItf, callbackPContext, SL_PREFETCHEVENT_STATUSCHANGE);
768        }
769        }
770        break;
771
772    case android::GenericPlayer::kEventEndOfStream: {
773        audioPlayer_dispatch_headAtEnd_lockPlay(ap, true /*set state to paused?*/, true);
774        if ((ap->mAudioTrack != 0) && (!ap->mSeek.mLoopEnabled)) {
775            ap->mAudioTrack->stop();
776        }
777        }
778        break;
779
780    case android::GenericPlayer::kEventChannelCount: {
781        object_lock_exclusive(&ap->mObject);
782        if (UNKNOWN_NUMCHANNELS == ap->mNumChannels && UNKNOWN_NUMCHANNELS != data1) {
783            ap->mNumChannels = data1;
784            android_audioPlayer_volumeUpdate(ap);
785        }
786        object_unlock_exclusive(&ap->mObject);
787        }
788        break;
789
790    case android::GenericPlayer::kEventPlay: {
791        slPlayCallback callback = NULL;
792        void* callbackPContext = NULL;
793
794        interface_lock_shared(&ap->mPlay);
795        callback = ap->mPlay.mCallback;
796        callbackPContext = ap->mPlay.mContext;
797        interface_unlock_shared(&ap->mPlay);
798
799        if (NULL != callback) {
800            SLuint32 event = (SLuint32) data1;  // SL_PLAYEVENT_HEAD*
801#ifndef USE_ASYNCHRONOUS_PLAY_CALLBACK
802            // synchronous callback requires a synchronous GetPosition implementation
803            (*callback)(&ap->mPlay.mItf, callbackPContext, event);
804#else
805            // asynchronous callback works with any GetPosition implementation
806            SLresult result = EnqueueAsyncCallback_ppi(ap, callback, &ap->mPlay.mItf,
807                    callbackPContext, event);
808            if (SL_RESULT_SUCCESS != result) {
809                ALOGW("Callback %p(%p, %p, 0x%x) dropped", callback,
810                        &ap->mPlay.mItf, callbackPContext, event);
811            }
812#endif
813        }
814        }
815        break;
816
817      case android::GenericPlayer::kEventErrorAfterPrepare: {
818        SL_LOGV("kEventErrorAfterPrepare");
819
820        // assume no callback
821        slPrefetchCallback callback = NULL;
822        void* callbackPContext = NULL;
823
824        object_lock_exclusive(&ap->mObject);
825        if (IsInterfaceInitialized(&ap->mObject, MPH_PREFETCHSTATUS)) {
826            ap->mPrefetchStatus.mLevel = 0;
827            ap->mPrefetchStatus.mStatus = SL_PREFETCHSTATUS_UNDERFLOW;
828            if (!(~ap->mPrefetchStatus.mCallbackEventsMask &
829                    (SL_PREFETCHEVENT_FILLLEVELCHANGE | SL_PREFETCHEVENT_STATUSCHANGE))) {
830                callback = ap->mPrefetchStatus.mCallback;
831                callbackPContext = ap->mPrefetchStatus.mContext;
832            }
833        }
834        object_unlock_exclusive(&ap->mObject);
835
836        // FIXME there's interesting information in data1, but no API to convey it to client
837        SL_LOGE("Error after prepare: %d", data1);
838
839        // callback with no lock held
840        if (NULL != callback) {
841            (*callback)(&ap->mPrefetchStatus.mItf, callbackPContext,
842                    SL_PREFETCHEVENT_FILLLEVELCHANGE | SL_PREFETCHEVENT_STATUSCHANGE);
843        }
844
845      }
846      break;
847
848    case android::GenericPlayer::kEventHasVideoSize:
849        //SL_LOGW("Unexpected kEventHasVideoSize");
850        break;
851
852    default:
853        break;
854    }
855
856    ap->mCallbackProtector->exitCb();
857}
858
859// From EffectDownmix.h
860static
861const uint32_t kSides = AUDIO_CHANNEL_OUT_SIDE_LEFT | AUDIO_CHANNEL_OUT_SIDE_RIGHT;
862static
863const uint32_t kBacks = AUDIO_CHANNEL_OUT_BACK_LEFT | AUDIO_CHANNEL_OUT_BACK_RIGHT;
864static
865const uint32_t kUnsupported =
866        AUDIO_CHANNEL_OUT_FRONT_LEFT_OF_CENTER | AUDIO_CHANNEL_OUT_FRONT_RIGHT_OF_CENTER |
867        AUDIO_CHANNEL_OUT_TOP_CENTER |
868        AUDIO_CHANNEL_OUT_TOP_FRONT_LEFT |
869        AUDIO_CHANNEL_OUT_TOP_FRONT_CENTER |
870        AUDIO_CHANNEL_OUT_TOP_FRONT_RIGHT |
871        AUDIO_CHANNEL_OUT_TOP_BACK_LEFT |
872        AUDIO_CHANNEL_OUT_TOP_BACK_CENTER |
873        AUDIO_CHANNEL_OUT_TOP_BACK_RIGHT;
874
875//TODO(pmclean) This will need to be revisited when arbitrary N-channel support is added.
876static
877SLresult android_audioPlayer_validateChannelMask(uint32_t mask, uint32_t numChans) {
878    // Check that the number of channels falls within bounds.
879    if (numChans == 0 || numChans > FCC_8) {
880        return SL_RESULT_CONTENT_UNSUPPORTED;
881    }
882    // Are there the right number of channels in the mask?
883    if (audio_channel_count_from_out_mask(mask) != numChans) {
884        return SL_RESULT_CONTENT_UNSUPPORTED;
885    }
886    // check against unsupported channels
887    if (mask & kUnsupported) {
888        ALOGE("Unsupported channels (top or front left/right of center)");
889        return SL_RESULT_CONTENT_UNSUPPORTED;
890    }
891    // verify has FL/FR if more than one channel
892    if (numChans > 1 && (mask & AUDIO_CHANNEL_OUT_STEREO) != AUDIO_CHANNEL_OUT_STEREO) {
893        ALOGE("Front channels must be present");
894        return SL_RESULT_CONTENT_UNSUPPORTED;
895    }
896    // verify uses SIDE as a pair (ok if not using SIDE at all)
897    bool hasSides = false;
898    if ((mask & kSides) != 0) {
899        if ((mask & kSides) != kSides) {
900            ALOGE("Side channels must be used as a pair");
901            return SL_RESULT_CONTENT_UNSUPPORTED;
902        }
903        hasSides = true;
904    }
905    // verify uses BACK as a pair (ok if not using BACK at all)
906    bool hasBacks = false;
907    if ((mask & kBacks) != 0) {
908        if ((mask & kBacks) != kBacks) {
909            ALOGE("Back channels must be used as a pair");
910            return SL_RESULT_CONTENT_UNSUPPORTED;
911        }
912        hasBacks = true;
913    }
914
915    return SL_RESULT_SUCCESS;
916}
917
918//-----------------------------------------------------------------------------
919SLresult android_audioPlayer_checkSourceSink(CAudioPlayer *pAudioPlayer)
920{
921    // verify that the locator types for the source / sink combination is supported
922    pAudioPlayer->mAndroidObjType = audioPlayer_getAndroidObjectTypeForSourceSink(pAudioPlayer);
923    if (INVALID_TYPE == pAudioPlayer->mAndroidObjType) {
924        return SL_RESULT_PARAMETER_INVALID;
925    }
926
927    const SLDataSource *pAudioSrc = &pAudioPlayer->mDataSource.u.mSource;
928    const SLDataSink *pAudioSnk = &pAudioPlayer->mDataSink.u.mSink;
929
930    // format check:
931    const SLuint32 sourceLocatorType = *(SLuint32 *)pAudioSrc->pLocator;
932    const SLuint32 sinkLocatorType = *(SLuint32 *)pAudioSnk->pLocator;
933    const SLuint32 sourceFormatType = *(SLuint32 *)pAudioSrc->pFormat;
934    const SLuint32 sinkFormatType = *(SLuint32 *)pAudioSnk->pFormat;
935
936    const SLuint32 *df_representation = NULL; // pointer to representation field, if it exists
937
938    switch (sourceLocatorType) {
939    //------------------
940    //   Buffer Queues
941    case SL_DATALOCATOR_BUFFERQUEUE:
942    case SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE:
943        {
944        SLDataLocator_BufferQueue *dl_bq = (SLDataLocator_BufferQueue *) pAudioSrc->pLocator;
945
946        // Buffer format
947        switch (sourceFormatType) {
948        //     currently only PCM buffer queues are supported,
949        case SL_ANDROID_DATAFORMAT_PCM_EX: {
950            const SLAndroidDataFormat_PCM_EX *df_pcm =
951                    (const SLAndroidDataFormat_PCM_EX *) pAudioSrc->pFormat;
952            // checkDataFormat() already checked representation
953            df_representation = &df_pcm->representation;
954            } // SL_ANDROID_DATAFORMAT_PCM_EX - fall through to next test.
955        case SL_DATAFORMAT_PCM: {
956            // checkDataFormat() already did generic checks, now do the Android-specific checks
957            const SLDataFormat_PCM *df_pcm = (const SLDataFormat_PCM *) pAudioSrc->pFormat;
958            SLresult result = android_audioPlayer_validateChannelMask(df_pcm->channelMask,
959                                                                      df_pcm->numChannels);
960            if (result != SL_RESULT_SUCCESS) {
961                SL_LOGE("Cannot create audio player: unsupported PCM data source with %u channels",
962                        (unsigned) df_pcm->numChannels);
963                return result;
964            }
965
966            // checkDataFormat() already checked sample rate
967
968            // checkDataFormat() already checked bits per sample, container size, and representation
969
970            // FIXME confirm the following
971            // df_pcm->channelMask: the earlier platform-independent check and the
972            //     upcoming check by sles_to_android_channelMaskOut are sufficient
973
974            if (df_pcm->endianness != pAudioPlayer->mObject.mEngine->mEngine.mNativeEndianness) {
975                SL_LOGE("Cannot create audio player: unsupported byte order %u",
976                        df_pcm->endianness);
977                return SL_RESULT_CONTENT_UNSUPPORTED;
978            }
979
980            // we don't support container size != sample depth
981            if (df_pcm->containerSize != df_pcm->bitsPerSample) {
982                SL_LOGE("Cannot create audio player: unsupported container size %u bits for "
983                        "sample depth %u bits",
984                        df_pcm->containerSize, (SLuint32)df_pcm->bitsPerSample);
985                return SL_RESULT_CONTENT_UNSUPPORTED;
986            }
987
988            } //case SL_DATAFORMAT_PCM
989            break;
990        case SL_DATAFORMAT_MIME:
991        case XA_DATAFORMAT_RAWIMAGE:
992            SL_LOGE("Cannot create audio player with buffer queue data source "
993                "without SL_DATAFORMAT_PCM format");
994            return SL_RESULT_CONTENT_UNSUPPORTED;
995        default:
996            // invalid data format is detected earlier
997            assert(false);
998            return SL_RESULT_INTERNAL_ERROR;
999        } // switch (sourceFormatType)
1000        } // case SL_DATALOCATOR_BUFFERQUEUE or SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE
1001        break;
1002    //------------------
1003    //   URI
1004    case SL_DATALOCATOR_URI:
1005        {
1006        SLDataLocator_URI *dl_uri = (SLDataLocator_URI *) pAudioSrc->pLocator;
1007        if (NULL == dl_uri->URI) {
1008            return SL_RESULT_PARAMETER_INVALID;
1009        }
1010        // URI format
1011        switch (sourceFormatType) {
1012        case SL_DATAFORMAT_MIME:
1013            break;
1014        default:
1015            SL_LOGE("Cannot create audio player with SL_DATALOCATOR_URI data source without "
1016                "SL_DATAFORMAT_MIME format");
1017            return SL_RESULT_CONTENT_UNSUPPORTED;
1018        } // switch (sourceFormatType)
1019        // decoding format check
1020        if ((sinkLocatorType != SL_DATALOCATOR_OUTPUTMIX) &&
1021                !audioPlayer_isSupportedNonOutputMixSink(pAudioSnk)) {
1022            return SL_RESULT_CONTENT_UNSUPPORTED;
1023        }
1024        } // case SL_DATALOCATOR_URI
1025        break;
1026    //------------------
1027    //   File Descriptor
1028    case SL_DATALOCATOR_ANDROIDFD:
1029        {
1030        // fd is already non null
1031        switch (sourceFormatType) {
1032        case SL_DATAFORMAT_MIME:
1033            break;
1034        default:
1035            SL_LOGE("Cannot create audio player with SL_DATALOCATOR_ANDROIDFD data source "
1036                "without SL_DATAFORMAT_MIME format");
1037            return SL_RESULT_CONTENT_UNSUPPORTED;
1038        } // switch (sourceFormatType)
1039        if ((sinkLocatorType != SL_DATALOCATOR_OUTPUTMIX) &&
1040                !audioPlayer_isSupportedNonOutputMixSink(pAudioSnk)) {
1041            return SL_RESULT_CONTENT_UNSUPPORTED;
1042        }
1043        } // case SL_DATALOCATOR_ANDROIDFD
1044        break;
1045    //------------------
1046    //   Stream
1047    case SL_DATALOCATOR_ANDROIDBUFFERQUEUE:
1048    {
1049        switch (sourceFormatType) {
1050        case SL_DATAFORMAT_MIME:
1051        {
1052            SLDataFormat_MIME *df_mime = (SLDataFormat_MIME *) pAudioSrc->pFormat;
1053            if (NULL == df_mime) {
1054                SL_LOGE("MIME type null invalid");
1055                return SL_RESULT_CONTENT_UNSUPPORTED;
1056            }
1057            SL_LOGD("source MIME is %s", (char*)df_mime->mimeType);
1058            switch (df_mime->containerType) {
1059            case SL_CONTAINERTYPE_MPEG_TS:
1060                if (strcasecmp((char*)df_mime->mimeType, (const char *)XA_ANDROID_MIME_MP2TS)) {
1061                    SL_LOGE("Invalid MIME (%s) for container SL_CONTAINERTYPE_MPEG_TS, expects %s",
1062                            (char*)df_mime->mimeType, XA_ANDROID_MIME_MP2TS);
1063                    return SL_RESULT_CONTENT_UNSUPPORTED;
1064                }
1065                if (pAudioPlayer->mAndroidObjType != AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE) {
1066                    SL_LOGE("Invalid sink for container SL_CONTAINERTYPE_MPEG_TS");
1067                    return SL_RESULT_PARAMETER_INVALID;
1068                }
1069                break;
1070            case SL_CONTAINERTYPE_RAW:
1071            case SL_CONTAINERTYPE_AAC:
1072                if (strcasecmp((char*)df_mime->mimeType, (const char *)SL_ANDROID_MIME_AACADTS) &&
1073                        strcasecmp((char*)df_mime->mimeType,
1074                                ANDROID_MIME_AACADTS_ANDROID_FRAMEWORK)) {
1075                    SL_LOGE("Invalid MIME (%s) for container type %d, expects %s",
1076                            (char*)df_mime->mimeType, df_mime->containerType,
1077                            SL_ANDROID_MIME_AACADTS);
1078                    return SL_RESULT_CONTENT_UNSUPPORTED;
1079                }
1080                if (pAudioPlayer->mAndroidObjType != AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE) {
1081                    SL_LOGE("Invalid sink for container SL_CONTAINERTYPE_AAC");
1082                    return SL_RESULT_PARAMETER_INVALID;
1083                }
1084                break;
1085            default:
1086                SL_LOGE("Cannot create player with SL_DATALOCATOR_ANDROIDBUFFERQUEUE data source "
1087                                        "that is not fed MPEG-2 TS data or AAC ADTS data");
1088                return SL_RESULT_CONTENT_UNSUPPORTED;
1089            }
1090        }
1091        break;
1092        default:
1093            SL_LOGE("Cannot create player with SL_DATALOCATOR_ANDROIDBUFFERQUEUE data source "
1094                    "without SL_DATAFORMAT_MIME format");
1095            return SL_RESULT_CONTENT_UNSUPPORTED;
1096        }
1097    }
1098    break; // case SL_DATALOCATOR_ANDROIDBUFFERQUEUE
1099    //------------------
1100    //   Address
1101    case SL_DATALOCATOR_ADDRESS:
1102    case SL_DATALOCATOR_IODEVICE:
1103    case SL_DATALOCATOR_OUTPUTMIX:
1104    case XA_DATALOCATOR_NATIVEDISPLAY:
1105    case SL_DATALOCATOR_MIDIBUFFERQUEUE:
1106        SL_LOGE("Cannot create audio player with data locator type 0x%x",
1107                (unsigned) sourceLocatorType);
1108        return SL_RESULT_CONTENT_UNSUPPORTED;
1109    default:
1110        SL_LOGE("Cannot create audio player with invalid data locator type 0x%x",
1111                (unsigned) sourceLocatorType);
1112        return SL_RESULT_PARAMETER_INVALID;
1113    }// switch (locatorType)
1114
1115    return SL_RESULT_SUCCESS;
1116}
1117
1118
1119//-----------------------------------------------------------------------------
1120// Callback associated with an AudioTrack of an SL ES AudioPlayer that gets its data
1121// from a buffer queue. This will not be called once the AudioTrack has been destroyed.
1122static void audioTrack_callBack_pullFromBuffQueue(int event, void* user, void *info) {
1123    CAudioPlayer *ap = (CAudioPlayer *)user;
1124
1125    if (!android::CallbackProtector::enterCbIfOk(ap->mCallbackProtector)) {
1126        // it is not safe to enter the callback (the track is about to go away)
1127        return;
1128    }
1129
1130    void * callbackPContext = NULL;
1131    switch (event) {
1132
1133    case android::AudioTrack::EVENT_MORE_DATA: {
1134        //SL_LOGV("received event EVENT_MORE_DATA from AudioTrack TID=%d", gettid());
1135        slPrefetchCallback prefetchCallback = NULL;
1136        void *prefetchContext = NULL;
1137        SLuint32 prefetchEvents = SL_PREFETCHEVENT_NONE;
1138        android::AudioTrack::Buffer* pBuff = (android::AudioTrack::Buffer*)info;
1139
1140        // retrieve data from the buffer queue
1141        interface_lock_exclusive(&ap->mBufferQueue);
1142
1143        if (ap->mBufferQueue.mCallbackPending) {
1144            // call callback with lock not held
1145            slBufferQueueCallback callback = ap->mBufferQueue.mCallback;
1146            if (NULL != callback) {
1147                callbackPContext = ap->mBufferQueue.mContext;
1148                interface_unlock_exclusive(&ap->mBufferQueue);
1149                (*callback)(&ap->mBufferQueue.mItf, callbackPContext);
1150                interface_lock_exclusive(&ap->mBufferQueue);
1151                ap->mBufferQueue.mCallbackPending = false;
1152            }
1153        }
1154
1155        if (ap->mBufferQueue.mState.count != 0) {
1156            //SL_LOGV("nbBuffers in queue = %u",ap->mBufferQueue.mState.count);
1157            assert(ap->mBufferQueue.mFront != ap->mBufferQueue.mRear);
1158
1159            BufferHeader *oldFront = ap->mBufferQueue.mFront;
1160            BufferHeader *newFront = &oldFront[1];
1161
1162            size_t availSource = oldFront->mSize - ap->mBufferQueue.mSizeConsumed;
1163            size_t availSink = pBuff->size;
1164            size_t bytesToCopy = availSource < availSink ? availSource : availSink;
1165            void *pSrc = (char *)oldFront->mBuffer + ap->mBufferQueue.mSizeConsumed;
1166            memcpy(pBuff->raw, pSrc, bytesToCopy);
1167
1168            if (bytesToCopy < availSource) {
1169                ap->mBufferQueue.mSizeConsumed += bytesToCopy;
1170                // pBuff->size is already equal to bytesToCopy in this case
1171            } else {
1172                // consumed an entire buffer, dequeue
1173                pBuff->size = bytesToCopy;
1174                ap->mBufferQueue.mSizeConsumed = 0;
1175                if (newFront ==
1176                        &ap->mBufferQueue.mArray
1177                            [ap->mBufferQueue.mNumBuffers + 1])
1178                {
1179                    newFront = ap->mBufferQueue.mArray;
1180                }
1181                ap->mBufferQueue.mFront = newFront;
1182
1183                ap->mBufferQueue.mState.count--;
1184                ap->mBufferQueue.mState.playIndex++;
1185                ap->mBufferQueue.mCallbackPending = true;
1186            }
1187        } else { // empty queue
1188            // signal no data available
1189            pBuff->size = 0;
1190
1191            // signal we're at the end of the content, but don't pause (see note in function)
1192            audioPlayer_dispatch_headAtEnd_lockPlay(ap, false /*set state to paused?*/, false);
1193
1194            // signal underflow to prefetch status itf
1195            if (IsInterfaceInitialized(&ap->mObject, MPH_PREFETCHSTATUS)) {
1196                ap->mPrefetchStatus.mStatus = SL_PREFETCHSTATUS_UNDERFLOW;
1197                ap->mPrefetchStatus.mLevel = 0;
1198                // callback or no callback?
1199                prefetchEvents = ap->mPrefetchStatus.mCallbackEventsMask &
1200                        (SL_PREFETCHEVENT_STATUSCHANGE | SL_PREFETCHEVENT_FILLLEVELCHANGE);
1201                if (SL_PREFETCHEVENT_NONE != prefetchEvents) {
1202                    prefetchCallback = ap->mPrefetchStatus.mCallback;
1203                    prefetchContext  = ap->mPrefetchStatus.mContext;
1204                }
1205            }
1206
1207            // stop the track so it restarts playing faster when new data is enqueued
1208            ap->mAudioTrack->stop();
1209        }
1210        interface_unlock_exclusive(&ap->mBufferQueue);
1211
1212        // notify client
1213        if (NULL != prefetchCallback) {
1214            assert(SL_PREFETCHEVENT_NONE != prefetchEvents);
1215            // spec requires separate callbacks for each event
1216            if (prefetchEvents & SL_PREFETCHEVENT_STATUSCHANGE) {
1217                (*prefetchCallback)(&ap->mPrefetchStatus.mItf, prefetchContext,
1218                        SL_PREFETCHEVENT_STATUSCHANGE);
1219            }
1220            if (prefetchEvents & SL_PREFETCHEVENT_FILLLEVELCHANGE) {
1221                (*prefetchCallback)(&ap->mPrefetchStatus.mItf, prefetchContext,
1222                        SL_PREFETCHEVENT_FILLLEVELCHANGE);
1223            }
1224        }
1225    }
1226    break;
1227
1228    case android::AudioTrack::EVENT_MARKER:
1229        //SL_LOGI("received event EVENT_MARKER from AudioTrack");
1230        audioTrack_handleMarker_lockPlay(ap);
1231        break;
1232
1233    case android::AudioTrack::EVENT_NEW_POS:
1234        //SL_LOGI("received event EVENT_NEW_POS from AudioTrack");
1235        audioTrack_handleNewPos_lockPlay(ap);
1236        break;
1237
1238    case android::AudioTrack::EVENT_UNDERRUN:
1239        //SL_LOGI("received event EVENT_UNDERRUN from AudioTrack");
1240        audioTrack_handleUnderrun_lockPlay(ap);
1241        break;
1242
1243    case android::AudioTrack::EVENT_NEW_IAUDIOTRACK:
1244        // ignore for now
1245        break;
1246
1247    case android::AudioTrack::EVENT_BUFFER_END:
1248    case android::AudioTrack::EVENT_LOOP_END:
1249    case android::AudioTrack::EVENT_STREAM_END:
1250        // These are unexpected so fall through
1251    default:
1252        // FIXME where does the notification of SL_PLAYEVENT_HEADMOVING fit?
1253        SL_LOGE("Encountered unknown AudioTrack event %d for CAudioPlayer %p", event,
1254                (CAudioPlayer *)user);
1255        break;
1256    }
1257
1258    ap->mCallbackProtector->exitCb();
1259}
1260
1261
1262//-----------------------------------------------------------------------------
1263void android_audioPlayer_create(CAudioPlayer *pAudioPlayer) {
1264
1265    // pAudioPlayer->mAndroidObjType has been set in android_audioPlayer_checkSourceSink()
1266    // and if it was == INVALID_TYPE, then IEngine_CreateAudioPlayer would never call us
1267    assert(INVALID_TYPE != pAudioPlayer->mAndroidObjType);
1268
1269    // These initializations are in the same order as the field declarations in classes.h
1270
1271    // FIXME Consolidate initializations (many of these already in IEngine_CreateAudioPlayer)
1272    // mAndroidObjType: see above comment
1273    pAudioPlayer->mAndroidObjState = ANDROID_UNINITIALIZED;
1274    pAudioPlayer->mSessionId = android::AudioSystem::newAudioUniqueId();
1275
1276    // placeholder: not necessary yet as session ID lifetime doesn't extend beyond player
1277    // android::AudioSystem::acquireAudioSessionId(pAudioPlayer->mSessionId);
1278
1279    pAudioPlayer->mStreamType = ANDROID_DEFAULT_OUTPUT_STREAM_TYPE;
1280
1281    // mAudioTrack
1282    pAudioPlayer->mCallbackProtector = new android::CallbackProtector();
1283    // mAPLayer
1284    // mAuxEffect
1285
1286    pAudioPlayer->mAuxSendLevel = 0;
1287    pAudioPlayer->mAmplFromDirectLevel = 1.0f; // matches initial mDirectLevel value
1288    pAudioPlayer->mDeferredStart = false;
1289
1290    // This section re-initializes interface-specific fields that
1291    // can be set or used regardless of whether the interface is
1292    // exposed on the AudioPlayer or not
1293
1294    switch (pAudioPlayer->mAndroidObjType) {
1295    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
1296        pAudioPlayer->mPlaybackRate.mMinRate = AUDIOTRACK_MIN_PLAYBACKRATE_PERMILLE;
1297        pAudioPlayer->mPlaybackRate.mMaxRate = AUDIOTRACK_MAX_PLAYBACKRATE_PERMILLE;
1298        break;
1299    case AUDIOPLAYER_FROM_URIFD:
1300        pAudioPlayer->mPlaybackRate.mMinRate = MEDIAPLAYER_MIN_PLAYBACKRATE_PERMILLE;
1301        pAudioPlayer->mPlaybackRate.mMaxRate = MEDIAPLAYER_MAX_PLAYBACKRATE_PERMILLE;
1302        break;
1303    default:
1304        // use the default range
1305        break;
1306    }
1307
1308}
1309
1310
1311//-----------------------------------------------------------------------------
1312SLresult android_audioPlayer_setConfig(CAudioPlayer *ap, const SLchar *configKey,
1313        const void *pConfigValue, SLuint32 valueSize) {
1314
1315    SLresult result;
1316
1317    assert(NULL != ap && NULL != configKey && NULL != pConfigValue);
1318    if (strcmp((const char*)configKey, (const char*)SL_ANDROID_KEY_STREAM_TYPE) == 0) {
1319
1320        // stream type
1321        if (KEY_STREAM_TYPE_PARAMSIZE > valueSize) {
1322            SL_LOGE(ERROR_CONFIG_VALUESIZE_TOO_LOW);
1323            result = SL_RESULT_BUFFER_INSUFFICIENT;
1324        } else {
1325            result = audioPlayer_setStreamType(ap, *(SLuint32*)pConfigValue);
1326        }
1327
1328    } else {
1329        SL_LOGE(ERROR_CONFIG_UNKNOWN_KEY);
1330        result = SL_RESULT_PARAMETER_INVALID;
1331    }
1332
1333    return result;
1334}
1335
1336
1337//-----------------------------------------------------------------------------
1338SLresult android_audioPlayer_getConfig(CAudioPlayer* ap, const SLchar *configKey,
1339        SLuint32* pValueSize, void *pConfigValue) {
1340
1341    SLresult result;
1342
1343    assert(NULL != ap && NULL != configKey && NULL != pValueSize);
1344    if (strcmp((const char*)configKey, (const char*)SL_ANDROID_KEY_STREAM_TYPE) == 0) {
1345
1346        // stream type
1347        if (NULL == pConfigValue) {
1348            result = SL_RESULT_SUCCESS;
1349        } else if (KEY_STREAM_TYPE_PARAMSIZE > *pValueSize) {
1350            SL_LOGE(ERROR_CONFIG_VALUESIZE_TOO_LOW);
1351            result = SL_RESULT_BUFFER_INSUFFICIENT;
1352        } else {
1353            result = audioPlayer_getStreamType(ap, (SLint32*)pConfigValue);
1354        }
1355        *pValueSize = KEY_STREAM_TYPE_PARAMSIZE;
1356
1357    } else {
1358        SL_LOGE(ERROR_CONFIG_UNKNOWN_KEY);
1359        result = SL_RESULT_PARAMETER_INVALID;
1360    }
1361
1362    return result;
1363}
1364
1365
1366// Called from android_audioPlayer_realize for a PCM buffer queue player
1367// to determine if it can use a fast track.
1368static bool canUseFastTrack(CAudioPlayer *pAudioPlayer)
1369{
1370    assert(pAudioPlayer->mAndroidObjType == AUDIOPLAYER_FROM_PCM_BUFFERQUEUE);
1371
1372    // no need to check the buffer queue size, application side
1373    // double-buffering (and more) is not a requirement for using fast tracks
1374
1375    // Check a blacklist of interfaces that are incompatible with fast tracks.
1376    // The alternative, to check a whitelist of compatible interfaces, is
1377    // more maintainable but is too slow.  As a compromise, in a debug build
1378    // we use both methods and warn if they produce different results.
1379    // In release builds, we only use the blacklist method.
1380    // If a blacklisted interface is added after realization using
1381    // DynamicInterfaceManagement::AddInterface,
1382    // then this won't be detected but the interface will be ineffective.
1383    bool blacklistResult = true;
1384    static const unsigned blacklist[] = {
1385        MPH_BASSBOOST,
1386        MPH_EFFECTSEND,
1387        MPH_ENVIRONMENTALREVERB,
1388        MPH_EQUALIZER,
1389        MPH_PLAYBACKRATE,
1390        MPH_PRESETREVERB,
1391        MPH_VIRTUALIZER,
1392        MPH_ANDROIDEFFECT,
1393        MPH_ANDROIDEFFECTSEND,
1394        // FIXME The problem with a blacklist is remembering to add new interfaces here
1395    };
1396    for (unsigned i = 0; i < sizeof(blacklist)/sizeof(blacklist[0]); ++i) {
1397        if (IsInterfaceInitialized(&pAudioPlayer->mObject, blacklist[i])) {
1398            blacklistResult = false;
1399            break;
1400        }
1401    }
1402#if LOG_NDEBUG == 0
1403    bool whitelistResult = true;
1404    static const unsigned whitelist[] = {
1405        MPH_BUFFERQUEUE,
1406        MPH_DYNAMICINTERFACEMANAGEMENT,
1407        MPH_METADATAEXTRACTION,
1408        MPH_MUTESOLO,
1409        MPH_OBJECT,
1410        MPH_PLAY,
1411        MPH_PREFETCHSTATUS,
1412        MPH_VOLUME,
1413        MPH_ANDROIDCONFIGURATION,
1414        MPH_ANDROIDSIMPLEBUFFERQUEUE,
1415        MPH_ANDROIDBUFFERQUEUESOURCE,
1416    };
1417    for (unsigned mph = MPH_MIN; mph < MPH_MAX; ++mph) {
1418        for (unsigned i = 0; i < sizeof(whitelist)/sizeof(whitelist[0]); ++i) {
1419            if (mph == whitelist[i]) {
1420                goto compatible;
1421            }
1422        }
1423        if (IsInterfaceInitialized(&pAudioPlayer->mObject, mph)) {
1424            whitelistResult = false;
1425            break;
1426        }
1427compatible: ;
1428    }
1429    if (whitelistResult != blacklistResult) {
1430        ALOGW("whitelistResult != blacklistResult");
1431        // and use blacklistResult below
1432    }
1433#endif
1434    return blacklistResult;
1435}
1436
1437
1438//-----------------------------------------------------------------------------
1439// FIXME abstract out the diff between CMediaPlayer and CAudioPlayer
1440SLresult android_audioPlayer_realize(CAudioPlayer *pAudioPlayer, SLboolean async) {
1441
1442    SLresult result = SL_RESULT_SUCCESS;
1443    SL_LOGV("Realize pAudioPlayer=%p", pAudioPlayer);
1444
1445    AudioPlayback_Parameters app;
1446    app.sessionId = pAudioPlayer->mSessionId;
1447    app.streamType = pAudioPlayer->mStreamType;
1448
1449    switch (pAudioPlayer->mAndroidObjType) {
1450
1451    //-----------------------------------
1452    // AudioTrack
1453    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
1454        {
1455        // initialize platform-specific CAudioPlayer fields
1456
1457        SLDataLocator_BufferQueue *dl_bq = (SLDataLocator_BufferQueue *)
1458                pAudioPlayer->mDynamicSource.mDataSource;
1459        SLDataFormat_PCM *df_pcm = (SLDataFormat_PCM *)
1460                pAudioPlayer->mDynamicSource.mDataSource->pFormat;
1461
1462        uint32_t sampleRate = sles_to_android_sampleRate(df_pcm->samplesPerSec);
1463
1464        audio_output_flags_t policy;
1465        if (canUseFastTrack(pAudioPlayer)) {
1466            policy = AUDIO_OUTPUT_FLAG_FAST;
1467        } else {
1468            policy = AUDIO_OUTPUT_FLAG_NONE;
1469        }
1470
1471        pAudioPlayer->mAudioTrack = new android::AudioTrack(
1472                pAudioPlayer->mStreamType,                           // streamType
1473                sampleRate,                                          // sampleRate
1474                sles_to_android_sampleFormat(df_pcm),                // format
1475                // FIXME ignores df_pcm->channelMask and assumes positional
1476                audio_channel_out_mask_from_count(df_pcm->numChannels),
1477                                                                     // channel mask
1478                0,                                                   // frameCount
1479                policy,                                              // flags
1480                audioTrack_callBack_pullFromBuffQueue,               // callback
1481                (void *) pAudioPlayer,                               // user
1482                0,     // FIXME find appropriate frame count         // notificationFrame
1483                pAudioPlayer->mSessionId);
1484        android::status_t status = pAudioPlayer->mAudioTrack->initCheck();
1485        if (status != android::NO_ERROR) {
1486            SL_LOGE("AudioTrack::initCheck status %u", status);
1487            // FIXME should return a more specific result depending on status
1488            result = SL_RESULT_CONTENT_UNSUPPORTED;
1489            pAudioPlayer->mAudioTrack.clear();
1490            return result;
1491        }
1492
1493        // initialize platform-independent CAudioPlayer fields
1494
1495        pAudioPlayer->mNumChannels = df_pcm->numChannels;
1496        pAudioPlayer->mSampleRateMilliHz = df_pcm->samplesPerSec; // Note: bad field name in SL ES
1497
1498        // This use case does not have a separate "prepare" step
1499        pAudioPlayer->mAndroidObjState = ANDROID_READY;
1500        }
1501        break;
1502
1503    //-----------------------------------
1504    // MediaPlayer
1505    case AUDIOPLAYER_FROM_URIFD: {
1506        pAudioPlayer->mAPlayer = new android::LocAVPlayer(&app, false /*hasVideo*/);
1507        pAudioPlayer->mAPlayer->init(sfplayer_handlePrefetchEvent,
1508                        (void*)pAudioPlayer /*notifUSer*/);
1509
1510        switch (pAudioPlayer->mDataSource.mLocator.mLocatorType) {
1511            case SL_DATALOCATOR_URI: {
1512                // The legacy implementation ran Stagefright within the application process, and
1513                // so allowed local pathnames specified by URI that were openable by
1514                // the application but were not openable by mediaserver.
1515                // The current implementation runs Stagefright (mostly) within mediaserver,
1516                // which runs as a different UID and likely a different current working directory.
1517                // For backwards compatibility with any applications which may have relied on the
1518                // previous behavior, we convert an openable file URI into an FD.
1519                // Note that unlike SL_DATALOCATOR_ANDROIDFD, this FD is owned by us
1520                // and so we close it as soon as we've passed it (via Binder dup) to mediaserver.
1521                const char *uri = (const char *)pAudioPlayer->mDataSource.mLocator.mURI.URI;
1522                if (!isDistantProtocol(uri)) {
1523                    // don't touch the original uri, we may need it later
1524                    const char *pathname = uri;
1525                    // skip over an optional leading file:// prefix
1526                    if (!strncasecmp(pathname, "file://", 7)) {
1527                        pathname += 7;
1528                    }
1529                    // attempt to open it as a file using the application's credentials
1530                    int fd = ::open(pathname, O_RDONLY);
1531                    if (fd >= 0) {
1532                        // if open is successful, then check to see if it's a regular file
1533                        struct stat statbuf;
1534                        if (!::fstat(fd, &statbuf) && S_ISREG(statbuf.st_mode)) {
1535                            // treat similarly to an FD data locator, but
1536                            // let setDataSource take responsibility for closing fd
1537                            pAudioPlayer->mAPlayer->setDataSource(fd, 0, statbuf.st_size, true);
1538                            break;
1539                        }
1540                        // we were able to open it, but it's not a file, so let mediaserver try
1541                        (void) ::close(fd);
1542                    }
1543                }
1544                // if either the URI didn't look like a file, or open failed, or not a file
1545                pAudioPlayer->mAPlayer->setDataSource(uri);
1546                } break;
1547            case SL_DATALOCATOR_ANDROIDFD: {
1548                int64_t offset = (int64_t)pAudioPlayer->mDataSource.mLocator.mFD.offset;
1549                pAudioPlayer->mAPlayer->setDataSource(
1550                        (int)pAudioPlayer->mDataSource.mLocator.mFD.fd,
1551                        offset == SL_DATALOCATOR_ANDROIDFD_USE_FILE_SIZE ?
1552                                (int64_t)PLAYER_FD_FIND_FILE_SIZE : offset,
1553                        (int64_t)pAudioPlayer->mDataSource.mLocator.mFD.length);
1554                }
1555                break;
1556            default:
1557                SL_LOGE(ERROR_PLAYERREALIZE_UNKNOWN_DATASOURCE_LOCATOR);
1558                break;
1559        }
1560
1561        }
1562        break;
1563
1564    //-----------------------------------
1565    // StreamPlayer
1566    case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE: {
1567        android::StreamPlayer* splr = new android::StreamPlayer(&app, false /*hasVideo*/,
1568                &pAudioPlayer->mAndroidBufferQueue, pAudioPlayer->mCallbackProtector);
1569        pAudioPlayer->mAPlayer = splr;
1570        splr->init(sfplayer_handlePrefetchEvent, (void*)pAudioPlayer);
1571        }
1572        break;
1573
1574    //-----------------------------------
1575    // AudioToCbRenderer
1576    case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE: {
1577        android::AudioToCbRenderer* decoder = new android::AudioToCbRenderer(&app);
1578        pAudioPlayer->mAPlayer = decoder;
1579        // configures the callback for the sink buffer queue
1580        decoder->setDataPushListener(adecoder_writeToBufferQueue, pAudioPlayer);
1581        // configures the callback for the notifications coming from the SF code
1582        decoder->init(sfplayer_handlePrefetchEvent, (void*)pAudioPlayer);
1583
1584        switch (pAudioPlayer->mDataSource.mLocator.mLocatorType) {
1585        case SL_DATALOCATOR_URI:
1586            decoder->setDataSource(
1587                    (const char*)pAudioPlayer->mDataSource.mLocator.mURI.URI);
1588            break;
1589        case SL_DATALOCATOR_ANDROIDFD: {
1590            int64_t offset = (int64_t)pAudioPlayer->mDataSource.mLocator.mFD.offset;
1591            decoder->setDataSource(
1592                    (int)pAudioPlayer->mDataSource.mLocator.mFD.fd,
1593                    offset == SL_DATALOCATOR_ANDROIDFD_USE_FILE_SIZE ?
1594                            (int64_t)PLAYER_FD_FIND_FILE_SIZE : offset,
1595                            (int64_t)pAudioPlayer->mDataSource.mLocator.mFD.length);
1596            }
1597            break;
1598        default:
1599            SL_LOGE(ERROR_PLAYERREALIZE_UNKNOWN_DATASOURCE_LOCATOR);
1600            break;
1601        }
1602
1603        }
1604        break;
1605
1606    //-----------------------------------
1607    // AacBqToPcmCbRenderer
1608    case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE: {
1609        android::AacBqToPcmCbRenderer* bqtobq = new android::AacBqToPcmCbRenderer(&app,
1610                &pAudioPlayer->mAndroidBufferQueue);
1611        // configures the callback for the sink buffer queue
1612        bqtobq->setDataPushListener(adecoder_writeToBufferQueue, pAudioPlayer);
1613        pAudioPlayer->mAPlayer = bqtobq;
1614        // configures the callback for the notifications coming from the SF code,
1615        // but also implicitly configures the AndroidBufferQueue from which ADTS data is read
1616        pAudioPlayer->mAPlayer->init(sfplayer_handlePrefetchEvent, (void*)pAudioPlayer);
1617        }
1618        break;
1619
1620    //-----------------------------------
1621    default:
1622        SL_LOGE(ERROR_PLAYERREALIZE_UNEXPECTED_OBJECT_TYPE_D, pAudioPlayer->mAndroidObjType);
1623        result = SL_RESULT_INTERNAL_ERROR;
1624        break;
1625    }
1626
1627    // proceed with effect initialization
1628    // initialize EQ
1629    // FIXME use a table of effect descriptors when adding support for more effects
1630    if (memcmp(SL_IID_EQUALIZER, &pAudioPlayer->mEqualizer.mEqDescriptor.type,
1631            sizeof(effect_uuid_t)) == 0) {
1632        SL_LOGV("Need to initialize EQ for AudioPlayer=%p", pAudioPlayer);
1633        android_eq_init(pAudioPlayer->mSessionId, &pAudioPlayer->mEqualizer);
1634    }
1635    // initialize BassBoost
1636    if (memcmp(SL_IID_BASSBOOST, &pAudioPlayer->mBassBoost.mBassBoostDescriptor.type,
1637            sizeof(effect_uuid_t)) == 0) {
1638        SL_LOGV("Need to initialize BassBoost for AudioPlayer=%p", pAudioPlayer);
1639        android_bb_init(pAudioPlayer->mSessionId, &pAudioPlayer->mBassBoost);
1640    }
1641    // initialize Virtualizer
1642    if (memcmp(SL_IID_VIRTUALIZER, &pAudioPlayer->mVirtualizer.mVirtualizerDescriptor.type,
1643               sizeof(effect_uuid_t)) == 0) {
1644        SL_LOGV("Need to initialize Virtualizer for AudioPlayer=%p", pAudioPlayer);
1645        android_virt_init(pAudioPlayer->mSessionId, &pAudioPlayer->mVirtualizer);
1646    }
1647
1648    // initialize EffectSend
1649    // FIXME initialize EffectSend
1650
1651    return result;
1652}
1653
1654
1655//-----------------------------------------------------------------------------
1656/**
1657 * Called with a lock on AudioPlayer, and blocks until safe to destroy
1658 */
1659SLresult android_audioPlayer_preDestroy(CAudioPlayer *pAudioPlayer) {
1660    SL_LOGD("android_audioPlayer_preDestroy(%p)", pAudioPlayer);
1661    SLresult result = SL_RESULT_SUCCESS;
1662
1663    bool disableCallbacksBeforePreDestroy;
1664    switch (pAudioPlayer->mAndroidObjType) {
1665    // Not yet clear why this order is important, but it reduces detected deadlocks
1666    case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1667        disableCallbacksBeforePreDestroy = true;
1668        break;
1669    // Use the old behavior for all other use cases until proven
1670    // case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1671    default:
1672        disableCallbacksBeforePreDestroy = false;
1673        break;
1674    }
1675
1676    if (disableCallbacksBeforePreDestroy) {
1677        object_unlock_exclusive(&pAudioPlayer->mObject);
1678        if (pAudioPlayer->mCallbackProtector != 0) {
1679            pAudioPlayer->mCallbackProtector->requestCbExitAndWait();
1680        }
1681        object_lock_exclusive(&pAudioPlayer->mObject);
1682    }
1683
1684    if (pAudioPlayer->mAPlayer != 0) {
1685        pAudioPlayer->mAPlayer->preDestroy();
1686    }
1687    SL_LOGD("android_audioPlayer_preDestroy(%p) after mAPlayer->preDestroy()", pAudioPlayer);
1688
1689    if (!disableCallbacksBeforePreDestroy) {
1690        object_unlock_exclusive(&pAudioPlayer->mObject);
1691        if (pAudioPlayer->mCallbackProtector != 0) {
1692            pAudioPlayer->mCallbackProtector->requestCbExitAndWait();
1693        }
1694        object_lock_exclusive(&pAudioPlayer->mObject);
1695    }
1696
1697    return result;
1698}
1699
1700
1701//-----------------------------------------------------------------------------
1702SLresult android_audioPlayer_destroy(CAudioPlayer *pAudioPlayer) {
1703    SLresult result = SL_RESULT_SUCCESS;
1704    SL_LOGV("android_audioPlayer_destroy(%p)", pAudioPlayer);
1705    switch (pAudioPlayer->mAndroidObjType) {
1706
1707    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
1708        // We own the audio track for PCM buffer queue players
1709        if (pAudioPlayer->mAudioTrack != 0) {
1710            pAudioPlayer->mAudioTrack->stop();
1711            // Note that there may still be another reference in post-unlock phase of SetPlayState
1712            pAudioPlayer->mAudioTrack.clear();
1713        }
1714        break;
1715
1716    case AUDIOPLAYER_FROM_URIFD:     // intended fall-through
1717    case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:    // intended fall-through
1718    case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE: // intended fall-through
1719    case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1720        pAudioPlayer->mAPlayer.clear();
1721        break;
1722    //-----------------------------------
1723    default:
1724        SL_LOGE(ERROR_PLAYERDESTROY_UNEXPECTED_OBJECT_TYPE_D, pAudioPlayer->mAndroidObjType);
1725        result = SL_RESULT_INTERNAL_ERROR;
1726        break;
1727    }
1728
1729    // placeholder: not necessary yet as session ID lifetime doesn't extend beyond player
1730    // android::AudioSystem::releaseAudioSessionId(pAudioPlayer->mSessionId);
1731
1732    pAudioPlayer->mCallbackProtector.clear();
1733
1734    // explicit destructor
1735    pAudioPlayer->mAudioTrack.~sp();
1736    // note that SetPlayState(PLAYING) may still hold a reference
1737    pAudioPlayer->mCallbackProtector.~sp();
1738    pAudioPlayer->mAuxEffect.~sp();
1739    pAudioPlayer->mAPlayer.~sp();
1740
1741    return result;
1742}
1743
1744
1745//-----------------------------------------------------------------------------
1746SLresult android_audioPlayer_setPlaybackRateAndConstraints(CAudioPlayer *ap, SLpermille rate,
1747        SLuint32 constraints) {
1748    SLresult result = SL_RESULT_SUCCESS;
1749    switch (ap->mAndroidObjType) {
1750    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE: {
1751        // these asserts were already checked by the platform-independent layer
1752        assert((AUDIOTRACK_MIN_PLAYBACKRATE_PERMILLE <= rate) &&
1753                (rate <= AUDIOTRACK_MAX_PLAYBACKRATE_PERMILLE));
1754        assert(constraints & SL_RATEPROP_NOPITCHCORAUDIO);
1755        // get the content sample rate
1756        uint32_t contentRate = sles_to_android_sampleRate(ap->mSampleRateMilliHz);
1757        // apply the SL ES playback rate on the AudioTrack as a factor of its content sample rate
1758        if (ap->mAudioTrack != 0) {
1759            ap->mAudioTrack->setSampleRate(contentRate * (rate/1000.0f));
1760        }
1761        }
1762        break;
1763    case AUDIOPLAYER_FROM_URIFD: {
1764        assert((MEDIAPLAYER_MIN_PLAYBACKRATE_PERMILLE <= rate) &&
1765                        (rate <= MEDIAPLAYER_MAX_PLAYBACKRATE_PERMILLE));
1766        assert(constraints & SL_RATEPROP_NOPITCHCORAUDIO);
1767        // apply the SL ES playback rate on the GenericPlayer
1768        if (ap->mAPlayer != 0) {
1769            ap->mAPlayer->setPlaybackRate((int16_t)rate);
1770        }
1771        }
1772        break;
1773
1774    default:
1775        SL_LOGE("Unexpected object type %d", ap->mAndroidObjType);
1776        result = SL_RESULT_FEATURE_UNSUPPORTED;
1777        break;
1778    }
1779    return result;
1780}
1781
1782
1783//-----------------------------------------------------------------------------
1784// precondition
1785//  called with no lock held
1786//  ap != NULL
1787//  pItemCount != NULL
1788SLresult android_audioPlayer_metadata_getItemCount(CAudioPlayer *ap, SLuint32 *pItemCount) {
1789    if (ap->mAPlayer == 0) {
1790        return SL_RESULT_PARAMETER_INVALID;
1791    }
1792    switch (ap->mAndroidObjType) {
1793      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1794      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1795        {
1796            android::AudioSfDecoder* decoder =
1797                    static_cast<android::AudioSfDecoder*>(ap->mAPlayer.get());
1798            *pItemCount = decoder->getPcmFormatKeyCount();
1799        }
1800        break;
1801      default:
1802        *pItemCount = 0;
1803        break;
1804    }
1805    return SL_RESULT_SUCCESS;
1806}
1807
1808
1809//-----------------------------------------------------------------------------
1810// precondition
1811//  called with no lock held
1812//  ap != NULL
1813//  pKeySize != NULL
1814SLresult android_audioPlayer_metadata_getKeySize(CAudioPlayer *ap,
1815        SLuint32 index, SLuint32 *pKeySize) {
1816    if (ap->mAPlayer == 0) {
1817        return SL_RESULT_PARAMETER_INVALID;
1818    }
1819    SLresult res = SL_RESULT_SUCCESS;
1820    switch (ap->mAndroidObjType) {
1821      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1822      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1823        {
1824            android::AudioSfDecoder* decoder =
1825                    static_cast<android::AudioSfDecoder*>(ap->mAPlayer.get());
1826            SLuint32 keyNameSize = 0;
1827            if (!decoder->getPcmFormatKeySize(index, &keyNameSize)) {
1828                res = SL_RESULT_PARAMETER_INVALID;
1829            } else {
1830                // *pKeySize is the size of the region used to store the key name AND
1831                //   the information about the key (size, lang, encoding)
1832                *pKeySize = keyNameSize + sizeof(SLMetadataInfo);
1833            }
1834        }
1835        break;
1836      default:
1837        *pKeySize = 0;
1838        res = SL_RESULT_PARAMETER_INVALID;
1839        break;
1840    }
1841    return res;
1842}
1843
1844
1845//-----------------------------------------------------------------------------
1846// precondition
1847//  called with no lock held
1848//  ap != NULL
1849//  pKey != NULL
1850SLresult android_audioPlayer_metadata_getKey(CAudioPlayer *ap,
1851        SLuint32 index, SLuint32 size, SLMetadataInfo *pKey) {
1852    if (ap->mAPlayer == 0) {
1853        return SL_RESULT_PARAMETER_INVALID;
1854    }
1855    SLresult res = SL_RESULT_SUCCESS;
1856    switch (ap->mAndroidObjType) {
1857      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1858      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1859        {
1860            android::AudioSfDecoder* decoder =
1861                    static_cast<android::AudioSfDecoder*>(ap->mAPlayer.get());
1862            if ((size < sizeof(SLMetadataInfo) ||
1863                    (!decoder->getPcmFormatKeyName(index, size - sizeof(SLMetadataInfo),
1864                            (char*)pKey->data)))) {
1865                res = SL_RESULT_PARAMETER_INVALID;
1866            } else {
1867                // successfully retrieved the key value, update the other fields
1868                pKey->encoding = SL_CHARACTERENCODING_UTF8;
1869                memcpy((char *) pKey->langCountry, "en", 3);
1870                pKey->size = strlen((char*)pKey->data) + 1;
1871            }
1872        }
1873        break;
1874      default:
1875        res = SL_RESULT_PARAMETER_INVALID;
1876        break;
1877    }
1878    return res;
1879}
1880
1881
1882//-----------------------------------------------------------------------------
1883// precondition
1884//  called with no lock held
1885//  ap != NULL
1886//  pValueSize != NULL
1887SLresult android_audioPlayer_metadata_getValueSize(CAudioPlayer *ap,
1888        SLuint32 index, SLuint32 *pValueSize) {
1889    if (ap->mAPlayer == 0) {
1890        return SL_RESULT_PARAMETER_INVALID;
1891    }
1892    SLresult res = SL_RESULT_SUCCESS;
1893    switch (ap->mAndroidObjType) {
1894      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1895      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1896        {
1897            android::AudioSfDecoder* decoder =
1898                    static_cast<android::AudioSfDecoder*>(ap->mAPlayer.get());
1899            SLuint32 valueSize = 0;
1900            if (!decoder->getPcmFormatValueSize(index, &valueSize)) {
1901                res = SL_RESULT_PARAMETER_INVALID;
1902            } else {
1903                // *pValueSize is the size of the region used to store the key value AND
1904                //   the information about the value (size, lang, encoding)
1905                *pValueSize = valueSize + sizeof(SLMetadataInfo);
1906            }
1907        }
1908        break;
1909      default:
1910          *pValueSize = 0;
1911          res = SL_RESULT_PARAMETER_INVALID;
1912          break;
1913    }
1914    return res;
1915}
1916
1917
1918//-----------------------------------------------------------------------------
1919// precondition
1920//  called with no lock held
1921//  ap != NULL
1922//  pValue != NULL
1923SLresult android_audioPlayer_metadata_getValue(CAudioPlayer *ap,
1924        SLuint32 index, SLuint32 size, SLMetadataInfo *pValue) {
1925    if (ap->mAPlayer == 0) {
1926        return SL_RESULT_PARAMETER_INVALID;
1927    }
1928    SLresult res = SL_RESULT_SUCCESS;
1929    switch (ap->mAndroidObjType) {
1930      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
1931      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1932        {
1933            android::AudioSfDecoder* decoder =
1934                    static_cast<android::AudioSfDecoder*>(ap->mAPlayer.get());
1935            pValue->encoding = SL_CHARACTERENCODING_BINARY;
1936            memcpy((char *) pValue->langCountry, "en", 3); // applicable here?
1937            SLuint32 valueSize = 0;
1938            if ((size < sizeof(SLMetadataInfo)
1939                    || (!decoder->getPcmFormatValueSize(index, &valueSize))
1940                    || (!decoder->getPcmFormatKeyValue(index, size - sizeof(SLMetadataInfo),
1941                            (SLuint32*)pValue->data)))) {
1942                res = SL_RESULT_PARAMETER_INVALID;
1943            } else {
1944                pValue->size = valueSize;
1945            }
1946        }
1947        break;
1948      default:
1949        res = SL_RESULT_PARAMETER_INVALID;
1950        break;
1951    }
1952    return res;
1953}
1954
1955//-----------------------------------------------------------------------------
1956// preconditions
1957//  ap != NULL
1958//  mutex is locked
1959//  play state has changed
1960void android_audioPlayer_setPlayState(CAudioPlayer *ap) {
1961
1962    SLuint32 playState = ap->mPlay.mState;
1963    AndroidObjectState objState = ap->mAndroidObjState;
1964
1965    switch (ap->mAndroidObjType) {
1966    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
1967        switch (playState) {
1968        case SL_PLAYSTATE_STOPPED:
1969            SL_LOGV("setting AudioPlayer to SL_PLAYSTATE_STOPPED");
1970            if (ap->mAudioTrack != 0) {
1971                ap->mAudioTrack->stop();
1972            }
1973            break;
1974        case SL_PLAYSTATE_PAUSED:
1975            SL_LOGV("setting AudioPlayer to SL_PLAYSTATE_PAUSED");
1976            if (ap->mAudioTrack != 0) {
1977                ap->mAudioTrack->pause();
1978            }
1979            break;
1980        case SL_PLAYSTATE_PLAYING:
1981            SL_LOGV("setting AudioPlayer to SL_PLAYSTATE_PLAYING");
1982            if (ap->mAudioTrack != 0) {
1983                // instead of ap->mAudioTrack->start();
1984                ap->mDeferredStart = true;
1985            }
1986            break;
1987        default:
1988            // checked by caller, should not happen
1989            break;
1990        }
1991        break;
1992
1993    case AUDIOPLAYER_FROM_URIFD:      // intended fall-through
1994    case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:     // intended fall-through
1995    case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:  // intended fall-through
1996    case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
1997        // FIXME report and use the return code to the lock mechanism, which is where play state
1998        //   changes are updated (see object_unlock_exclusive_attributes())
1999        aplayer_setPlayState(ap->mAPlayer, playState, &ap->mAndroidObjState);
2000        break;
2001    default:
2002        SL_LOGE(ERROR_PLAYERSETPLAYSTATE_UNEXPECTED_OBJECT_TYPE_D, ap->mAndroidObjType);
2003        break;
2004    }
2005}
2006
2007
2008//-----------------------------------------------------------------------------
2009// call when either player event flags, marker position, or position update period changes
2010void android_audioPlayer_usePlayEventMask(CAudioPlayer *ap) {
2011    IPlay *pPlayItf = &ap->mPlay;
2012    SLuint32 eventFlags = pPlayItf->mEventFlags;
2013    /*switch (ap->mAndroidObjType) {
2014    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:*/
2015
2016    if (ap->mAPlayer != 0) {
2017        assert(ap->mAudioTrack == 0);
2018        ap->mAPlayer->setPlayEvents((int32_t) eventFlags, (int32_t) pPlayItf->mMarkerPosition,
2019                (int32_t) pPlayItf->mPositionUpdatePeriod);
2020        return;
2021    }
2022
2023    if (ap->mAudioTrack == 0) {
2024        return;
2025    }
2026
2027    if (eventFlags & SL_PLAYEVENT_HEADATMARKER) {
2028        ap->mAudioTrack->setMarkerPosition((uint32_t)((((int64_t)pPlayItf->mMarkerPosition
2029                * sles_to_android_sampleRate(ap->mSampleRateMilliHz)))/1000));
2030    } else {
2031        // clear marker
2032        ap->mAudioTrack->setMarkerPosition(0);
2033    }
2034
2035    if (eventFlags & SL_PLAYEVENT_HEADATNEWPOS) {
2036         ap->mAudioTrack->setPositionUpdatePeriod(
2037                (uint32_t)((((int64_t)pPlayItf->mPositionUpdatePeriod
2038                * sles_to_android_sampleRate(ap->mSampleRateMilliHz)))/1000));
2039    } else {
2040        // clear periodic update
2041        ap->mAudioTrack->setPositionUpdatePeriod(0);
2042    }
2043
2044    if (eventFlags & SL_PLAYEVENT_HEADATEND) {
2045        // nothing to do for SL_PLAYEVENT_HEADATEND, callback event will be checked against mask
2046    }
2047
2048    if (eventFlags & SL_PLAYEVENT_HEADMOVING) {
2049        // FIXME support SL_PLAYEVENT_HEADMOVING
2050        SL_LOGD("[ FIXME: IPlay_SetCallbackEventsMask(SL_PLAYEVENT_HEADMOVING) on an "
2051            "SL_OBJECTID_AUDIOPLAYER to be implemented ]");
2052    }
2053    if (eventFlags & SL_PLAYEVENT_HEADSTALLED) {
2054        // nothing to do for SL_PLAYEVENT_HEADSTALLED, callback event will be checked against mask
2055    }
2056
2057}
2058
2059
2060//-----------------------------------------------------------------------------
2061SLresult android_audioPlayer_getDuration(IPlay *pPlayItf, SLmillisecond *pDurMsec) {
2062    CAudioPlayer *ap = (CAudioPlayer *)pPlayItf->mThis;
2063    switch (ap->mAndroidObjType) {
2064
2065      case AUDIOPLAYER_FROM_URIFD:  // intended fall-through
2066      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE: {
2067        int32_t durationMsec = ANDROID_UNKNOWN_TIME;
2068        if (ap->mAPlayer != 0) {
2069            ap->mAPlayer->getDurationMsec(&durationMsec);
2070        }
2071        *pDurMsec = durationMsec == ANDROID_UNKNOWN_TIME ? SL_TIME_UNKNOWN : durationMsec;
2072        break;
2073      }
2074
2075      case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE: // intended fall-through
2076      case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
2077      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
2078      default: {
2079        *pDurMsec = SL_TIME_UNKNOWN;
2080      }
2081    }
2082    return SL_RESULT_SUCCESS;
2083}
2084
2085
2086//-----------------------------------------------------------------------------
2087void android_audioPlayer_getPosition(IPlay *pPlayItf, SLmillisecond *pPosMsec) {
2088    CAudioPlayer *ap = (CAudioPlayer *)pPlayItf->mThis;
2089    switch (ap->mAndroidObjType) {
2090
2091      case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
2092        if ((ap->mSampleRateMilliHz == UNKNOWN_SAMPLERATE) || (ap->mAudioTrack == 0)) {
2093            *pPosMsec = 0;
2094        } else {
2095            uint32_t positionInFrames;
2096            ap->mAudioTrack->getPosition(&positionInFrames);
2097            *pPosMsec = ((int64_t)positionInFrames * 1000) /
2098                    sles_to_android_sampleRate(ap->mSampleRateMilliHz);
2099        }
2100        break;
2101
2102      case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:    // intended fall-through
2103      case AUDIOPLAYER_FROM_URIFD:
2104      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
2105      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE: {
2106        int32_t posMsec = ANDROID_UNKNOWN_TIME;
2107        if (ap->mAPlayer != 0) {
2108            ap->mAPlayer->getPositionMsec(&posMsec);
2109        }
2110        *pPosMsec = posMsec == ANDROID_UNKNOWN_TIME ? 0 : posMsec;
2111        break;
2112      }
2113
2114      default:
2115        *pPosMsec = 0;
2116    }
2117}
2118
2119
2120//-----------------------------------------------------------------------------
2121SLresult android_audioPlayer_seek(CAudioPlayer *ap, SLmillisecond posMsec) {
2122    SLresult result = SL_RESULT_SUCCESS;
2123
2124    switch (ap->mAndroidObjType) {
2125
2126      case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:      // intended fall-through
2127      case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:
2128      case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
2129        result = SL_RESULT_FEATURE_UNSUPPORTED;
2130        break;
2131
2132      case AUDIOPLAYER_FROM_URIFD:                   // intended fall-through
2133      case AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE:
2134        if (ap->mAPlayer != 0) {
2135            ap->mAPlayer->seek(posMsec);
2136        }
2137        break;
2138
2139      default:
2140        break;
2141    }
2142    return result;
2143}
2144
2145
2146//-----------------------------------------------------------------------------
2147SLresult android_audioPlayer_loop(CAudioPlayer *ap, SLboolean loopEnable) {
2148    SLresult result = SL_RESULT_SUCCESS;
2149
2150    switch (ap->mAndroidObjType) {
2151    case AUDIOPLAYER_FROM_URIFD:
2152    // case AUDIOPLAY_FROM_URIFD_TO_PCM_BUFFERQUEUE:
2153    //      would actually work, but what's the point?
2154      if (ap->mAPlayer != 0) {
2155        ap->mAPlayer->loop((bool)loopEnable);
2156      }
2157      break;
2158    default:
2159      result = SL_RESULT_FEATURE_UNSUPPORTED;
2160      break;
2161    }
2162    return result;
2163}
2164
2165
2166//-----------------------------------------------------------------------------
2167SLresult android_audioPlayer_setBufferingUpdateThresholdPerMille(CAudioPlayer *ap,
2168        SLpermille threshold) {
2169    SLresult result = SL_RESULT_SUCCESS;
2170
2171    switch (ap->mAndroidObjType) {
2172      case AUDIOPLAYER_FROM_URIFD:
2173        if (ap->mAPlayer != 0) {
2174            ap->mAPlayer->setBufferingUpdateThreshold(threshold / 10);
2175        }
2176        break;
2177
2178      default: {}
2179    }
2180
2181    return result;
2182}
2183
2184
2185//-----------------------------------------------------------------------------
2186void android_audioPlayer_bufferQueue_onRefilled_l(CAudioPlayer *ap) {
2187    // the AudioTrack associated with the AudioPlayer receiving audio from a PCM buffer
2188    // queue was stopped when the queue become empty, we restart as soon as a new buffer
2189    // has been enqueued since we're in playing state
2190    if (ap->mAudioTrack != 0) {
2191        // instead of ap->mAudioTrack->start();
2192        ap->mDeferredStart = true;
2193    }
2194
2195    // when the queue became empty, an underflow on the prefetch status itf was sent. Now the queue
2196    // has received new data, signal it has sufficient data
2197    if (IsInterfaceInitialized(&ap->mObject, MPH_PREFETCHSTATUS)) {
2198        // we wouldn't have been called unless we were previously in the underflow state
2199        assert(SL_PREFETCHSTATUS_UNDERFLOW == ap->mPrefetchStatus.mStatus);
2200        assert(0 == ap->mPrefetchStatus.mLevel);
2201        ap->mPrefetchStatus.mStatus = SL_PREFETCHSTATUS_SUFFICIENTDATA;
2202        ap->mPrefetchStatus.mLevel = 1000;
2203        // callback or no callback?
2204        SLuint32 prefetchEvents = ap->mPrefetchStatus.mCallbackEventsMask &
2205                (SL_PREFETCHEVENT_STATUSCHANGE | SL_PREFETCHEVENT_FILLLEVELCHANGE);
2206        if (SL_PREFETCHEVENT_NONE != prefetchEvents) {
2207            ap->mPrefetchStatus.mDeferredPrefetchCallback = ap->mPrefetchStatus.mCallback;
2208            ap->mPrefetchStatus.mDeferredPrefetchContext  = ap->mPrefetchStatus.mContext;
2209            ap->mPrefetchStatus.mDeferredPrefetchEvents   = prefetchEvents;
2210        }
2211    }
2212}
2213
2214
2215//-----------------------------------------------------------------------------
2216/*
2217 * BufferQueue::Clear
2218 */
2219SLresult android_audioPlayer_bufferQueue_onClear(CAudioPlayer *ap) {
2220    SLresult result = SL_RESULT_SUCCESS;
2221
2222    switch (ap->mAndroidObjType) {
2223    //-----------------------------------
2224    // AudioTrack
2225    case AUDIOPLAYER_FROM_PCM_BUFFERQUEUE:
2226        if (ap->mAudioTrack != 0) {
2227            ap->mAudioTrack->flush();
2228        }
2229        break;
2230    default:
2231        result = SL_RESULT_INTERNAL_ERROR;
2232        break;
2233    }
2234
2235    return result;
2236}
2237
2238
2239//-----------------------------------------------------------------------------
2240void android_audioPlayer_androidBufferQueue_clear_l(CAudioPlayer *ap) {
2241    switch (ap->mAndroidObjType) {
2242    case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:
2243      if (ap->mAPlayer != 0) {
2244        android::StreamPlayer* splr = static_cast<android::StreamPlayer*>(ap->mAPlayer.get());
2245        splr->appClear_l();
2246      } break;
2247    case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
2248      // nothing to do here, fall through
2249    default:
2250      break;
2251    }
2252}
2253
2254void android_audioPlayer_androidBufferQueue_onRefilled_l(CAudioPlayer *ap) {
2255    switch (ap->mAndroidObjType) {
2256    case AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE:
2257      if (ap->mAPlayer != 0) {
2258        android::StreamPlayer* splr = static_cast<android::StreamPlayer*>(ap->mAPlayer.get());
2259        splr->queueRefilled();
2260      } break;
2261    case AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE:
2262      // FIXME this may require waking up the decoder if it is currently starved and isn't polling
2263    default:
2264      break;
2265    }
2266}
2267