NuPlayer.cpp revision 0a7989f5691f161fff97dd550eb602e44a6e6185 
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//#define LOG_NDEBUG 0
18#define LOG_TAG "NuPlayer"
19#include <utils/Log.h>
20
21#include "NuPlayer.h"
22
23#include "HTTPLiveSource.h"
24#include "NuPlayerCCDecoder.h"
25#include "NuPlayerDecoder.h"
26#include "NuPlayerDecoderBase.h"
27#include "NuPlayerDecoderPassThrough.h"
28#include "NuPlayerDriver.h"
29#include "NuPlayerRenderer.h"
30#include "NuPlayerSource.h"
31#include "RTSPSource.h"
32#include "StreamingSource.h"
33#include "GenericSource.h"
34#include "TextDescriptions.h"
35
36#include "ATSParser.h"
37
38#include <cutils/properties.h>
39
40#include <media/AudioResamplerPublic.h>
41#include <media/AVSyncSettings.h>
42
43#include <media/stagefright/foundation/hexdump.h>
44#include <media/stagefright/foundation/ABuffer.h>
45#include <media/stagefright/foundation/ADebug.h>
46#include <media/stagefright/foundation/AMessage.h>
47#include <media/stagefright/MediaBuffer.h>
48#include <media/stagefright/MediaDefs.h>
49#include <media/stagefright/MediaErrors.h>
50#include <media/stagefright/MetaData.h>
51
52#include <gui/IGraphicBufferProducer.h>
53#include <gui/Surface.h>
54
55#include "avc_utils.h"
56
57#include "ESDS.h"
58#include <media/stagefright/Utils.h>
59
60namespace android {
61
62struct NuPlayer::Action : public RefBase {
63    Action() {}
64
65    virtual void execute(NuPlayer *player) = 0;
66
67private:
68    DISALLOW_EVIL_CONSTRUCTORS(Action);
69};
70
71struct NuPlayer::SeekAction : public Action {
72    SeekAction(int64_t seekTimeUs)
73        : mSeekTimeUs(seekTimeUs) {
74    }
75
76    virtual void execute(NuPlayer *player) {
77        player->performSeek(mSeekTimeUs);
78    }
79
80private:
81    int64_t mSeekTimeUs;
82
83    DISALLOW_EVIL_CONSTRUCTORS(SeekAction);
84};
85
86struct NuPlayer::ResumeDecoderAction : public Action {
87    ResumeDecoderAction(bool needNotify)
88        : mNeedNotify(needNotify) {
89    }
90
91    virtual void execute(NuPlayer *player) {
92        player->performResumeDecoders(mNeedNotify);
93    }
94
95private:
96    bool mNeedNotify;
97
98    DISALLOW_EVIL_CONSTRUCTORS(ResumeDecoderAction);
99};
100
101struct NuPlayer::SetSurfaceAction : public Action {
102    SetSurfaceAction(const sp<Surface> &surface)
103        : mSurface(surface) {
104    }
105
106    virtual void execute(NuPlayer *player) {
107        player->performSetSurface(mSurface);
108    }
109
110private:
111    sp<Surface> mSurface;
112
113    DISALLOW_EVIL_CONSTRUCTORS(SetSurfaceAction);
114};
115
116struct NuPlayer::FlushDecoderAction : public Action {
117    FlushDecoderAction(FlushCommand audio, FlushCommand video)
118        : mAudio(audio),
119          mVideo(video) {
120    }
121
122    virtual void execute(NuPlayer *player) {
123        player->performDecoderFlush(mAudio, mVideo);
124    }
125
126private:
127    FlushCommand mAudio;
128    FlushCommand mVideo;
129
130    DISALLOW_EVIL_CONSTRUCTORS(FlushDecoderAction);
131};
132
133struct NuPlayer::PostMessageAction : public Action {
134    PostMessageAction(const sp<AMessage> &msg)
135        : mMessage(msg) {
136    }
137
138    virtual void execute(NuPlayer *) {
139        mMessage->post();
140    }
141
142private:
143    sp<AMessage> mMessage;
144
145    DISALLOW_EVIL_CONSTRUCTORS(PostMessageAction);
146};
147
148// Use this if there's no state necessary to save in order to execute
149// the action.
150struct NuPlayer::SimpleAction : public Action {
151    typedef void (NuPlayer::*ActionFunc)();
152
153    SimpleAction(ActionFunc func)
154        : mFunc(func) {
155    }
156
157    virtual void execute(NuPlayer *player) {
158        (player->*mFunc)();
159    }
160
161private:
162    ActionFunc mFunc;
163
164    DISALLOW_EVIL_CONSTRUCTORS(SimpleAction);
165};
166
167////////////////////////////////////////////////////////////////////////////////
168
169NuPlayer::NuPlayer()
170    : mUIDValid(false),
171      mSourceFlags(0),
172      mOffloadAudio(false),
173      mAudioDecoderGeneration(0),
174      mVideoDecoderGeneration(0),
175      mRendererGeneration(0),
176      mAudioEOS(false),
177      mVideoEOS(false),
178      mScanSourcesPending(false),
179      mScanSourcesGeneration(0),
180      mPollDurationGeneration(0),
181      mTimedTextGeneration(0),
182      mFlushingAudio(NONE),
183      mFlushingVideo(NONE),
184      mResumePending(false),
185      mVideoScalingMode(NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW),
186      mPlaybackSettings(AUDIO_PLAYBACK_RATE_DEFAULT),
187      mVideoFpsHint(-1.f),
188      mStarted(false),
189      mPaused(false),
190      mPausedByClient(false),
191      mPausedForBuffering(false) {
192    clearFlushComplete();
193}
194
195NuPlayer::~NuPlayer() {
196}
197
198void NuPlayer::setUID(uid_t uid) {
199    mUIDValid = true;
200    mUID = uid;
201}
202
203void NuPlayer::setDriver(const wp<NuPlayerDriver> &driver) {
204    mDriver = driver;
205}
206
207void NuPlayer::setDataSourceAsync(const sp<IStreamSource> &source) {
208    sp<AMessage> msg = new AMessage(kWhatSetDataSource, this);
209
210    sp<AMessage> notify = new AMessage(kWhatSourceNotify, this);
211
212    msg->setObject("source", new StreamingSource(notify, source));
213    msg->post();
214}
215
216static bool IsHTTPLiveURL(const char *url) {
217    if (!strncasecmp("http://", url, 7)
218            || !strncasecmp("https://", url, 8)
219            || !strncasecmp("file://", url, 7)) {
220        size_t len = strlen(url);
221        if (len >= 5 && !strcasecmp(".m3u8", &url[len - 5])) {
222            return true;
223        }
224
225        if (strstr(url,"m3u8")) {
226            return true;
227        }
228    }
229
230    return false;
231}
232
233void NuPlayer::setDataSourceAsync(
234        const sp<IMediaHTTPService> &httpService,
235        const char *url,
236        const KeyedVector<String8, String8> *headers) {
237
238    sp<AMessage> msg = new AMessage(kWhatSetDataSource, this);
239    size_t len = strlen(url);
240
241    sp<AMessage> notify = new AMessage(kWhatSourceNotify, this);
242
243    sp<Source> source;
244    if (IsHTTPLiveURL(url)) {
245        source = new HTTPLiveSource(notify, httpService, url, headers);
246    } else if (!strncasecmp(url, "rtsp://", 7)) {
247        source = new RTSPSource(
248                notify, httpService, url, headers, mUIDValid, mUID);
249    } else if ((!strncasecmp(url, "http://", 7)
250                || !strncasecmp(url, "https://", 8))
251                    && ((len >= 4 && !strcasecmp(".sdp", &url[len - 4]))
252                    || strstr(url, ".sdp?"))) {
253        source = new RTSPSource(
254                notify, httpService, url, headers, mUIDValid, mUID, true);
255    } else {
256        sp<GenericSource> genericSource =
257                new GenericSource(notify, mUIDValid, mUID);
258        // Don't set FLAG_SECURE on mSourceFlags here for widevine.
259        // The correct flags will be updated in Source::kWhatFlagsChanged
260        // handler when  GenericSource is prepared.
261
262        status_t err = genericSource->setDataSource(httpService, url, headers);
263
264        if (err == OK) {
265            source = genericSource;
266        } else {
267            ALOGE("Failed to set data source!");
268        }
269    }
270    msg->setObject("source", source);
271    msg->post();
272}
273
274void NuPlayer::setDataSourceAsync(int fd, int64_t offset, int64_t length) {
275    sp<AMessage> msg = new AMessage(kWhatSetDataSource, this);
276
277    sp<AMessage> notify = new AMessage(kWhatSourceNotify, this);
278
279    sp<GenericSource> source =
280            new GenericSource(notify, mUIDValid, mUID);
281
282    status_t err = source->setDataSource(fd, offset, length);
283
284    if (err != OK) {
285        ALOGE("Failed to set data source!");
286        source = NULL;
287    }
288
289    msg->setObject("source", source);
290    msg->post();
291}
292
293void NuPlayer::setDataSourceAsync(const sp<DataSource> &dataSource) {
294    sp<AMessage> msg = new AMessage(kWhatSetDataSource, this);
295    sp<AMessage> notify = new AMessage(kWhatSourceNotify, this);
296
297    sp<GenericSource> source = new GenericSource(notify, mUIDValid, mUID);
298    status_t err = source->setDataSource(dataSource);
299
300    if (err != OK) {
301        ALOGE("Failed to set data source!");
302        source = NULL;
303    }
304
305    msg->setObject("source", source);
306    msg->post();
307}
308
309void NuPlayer::prepareAsync() {
310    (new AMessage(kWhatPrepare, this))->post();
311}
312
313void NuPlayer::setVideoSurfaceTextureAsync(
314        const sp<IGraphicBufferProducer> &bufferProducer) {
315    sp<AMessage> msg = new AMessage(kWhatSetVideoSurface, this);
316
317    if (bufferProducer == NULL) {
318        msg->setObject("surface", NULL);
319    } else {
320        msg->setObject("surface", new Surface(bufferProducer, true /* controlledByApp */));
321    }
322
323    msg->post();
324}
325
326void NuPlayer::setAudioSink(const sp<MediaPlayerBase::AudioSink> &sink) {
327    sp<AMessage> msg = new AMessage(kWhatSetAudioSink, this);
328    msg->setObject("sink", sink);
329    msg->post();
330}
331
332void NuPlayer::start() {
333    (new AMessage(kWhatStart, this))->post();
334}
335
336status_t NuPlayer::setPlaybackSettings(const AudioPlaybackRate &rate) {
337    // do some cursory validation of the settings here. audio modes are
338    // only validated when set on the audiosink.
339     if ((rate.mSpeed != 0.f && rate.mSpeed < AUDIO_TIMESTRETCH_SPEED_MIN)
340            || rate.mSpeed > AUDIO_TIMESTRETCH_SPEED_MAX
341            || rate.mPitch < AUDIO_TIMESTRETCH_SPEED_MIN
342            || rate.mPitch > AUDIO_TIMESTRETCH_SPEED_MAX) {
343        return BAD_VALUE;
344    }
345    sp<AMessage> msg = new AMessage(kWhatConfigPlayback, this);
346    writeToAMessage(msg, rate);
347    sp<AMessage> response;
348    status_t err = msg->postAndAwaitResponse(&response);
349    if (err == OK && response != NULL) {
350        CHECK(response->findInt32("err", &err));
351    }
352    return err;
353}
354
355status_t NuPlayer::getPlaybackSettings(AudioPlaybackRate *rate /* nonnull */) {
356    sp<AMessage> msg = new AMessage(kWhatGetPlaybackSettings, this);
357    sp<AMessage> response;
358    status_t err = msg->postAndAwaitResponse(&response);
359    if (err == OK && response != NULL) {
360        CHECK(response->findInt32("err", &err));
361        if (err == OK) {
362            readFromAMessage(response, rate);
363        }
364    }
365    return err;
366}
367
368status_t NuPlayer::setSyncSettings(const AVSyncSettings &sync, float videoFpsHint) {
369    sp<AMessage> msg = new AMessage(kWhatConfigSync, this);
370    writeToAMessage(msg, sync, videoFpsHint);
371    sp<AMessage> response;
372    status_t err = msg->postAndAwaitResponse(&response);
373    if (err == OK && response != NULL) {
374        CHECK(response->findInt32("err", &err));
375    }
376    return err;
377}
378
379status_t NuPlayer::getSyncSettings(
380        AVSyncSettings *sync /* nonnull */, float *videoFps /* nonnull */) {
381    sp<AMessage> msg = new AMessage(kWhatGetSyncSettings, this);
382    sp<AMessage> response;
383    status_t err = msg->postAndAwaitResponse(&response);
384    if (err == OK && response != NULL) {
385        CHECK(response->findInt32("err", &err));
386        if (err == OK) {
387            readFromAMessage(response, sync, videoFps);
388        }
389    }
390    return err;
391}
392
393void NuPlayer::pause() {
394    (new AMessage(kWhatPause, this))->post();
395}
396
397void NuPlayer::resetAsync() {
398    if (mSource != NULL) {
399        // During a reset, the data source might be unresponsive already, we need to
400        // disconnect explicitly so that reads exit promptly.
401        // We can't queue the disconnect request to the looper, as it might be
402        // queued behind a stuck read and never gets processed.
403        // Doing a disconnect outside the looper to allows the pending reads to exit
404        // (either successfully or with error).
405        mSource->disconnect();
406    }
407
408    (new AMessage(kWhatReset, this))->post();
409}
410
411void NuPlayer::seekToAsync(int64_t seekTimeUs, bool needNotify) {
412    sp<AMessage> msg = new AMessage(kWhatSeek, this);
413    msg->setInt64("seekTimeUs", seekTimeUs);
414    msg->setInt32("needNotify", needNotify);
415    msg->post();
416}
417
418
419void NuPlayer::writeTrackInfo(
420        Parcel* reply, const sp<AMessage> format) const {
421    int32_t trackType;
422    CHECK(format->findInt32("type", &trackType));
423
424    AString mime;
425    if (!format->findString("mime", &mime)) {
426        // Java MediaPlayer only uses mimetype for subtitle and timedtext tracks.
427        // If we can't find the mimetype here it means that we wouldn't be needing
428        // the mimetype on the Java end. We still write a placeholder mime to keep the
429        // (de)serialization logic simple.
430        if (trackType == MEDIA_TRACK_TYPE_AUDIO) {
431            mime = "audio/";
432        } else if (trackType == MEDIA_TRACK_TYPE_VIDEO) {
433            mime = "video/";
434        } else {
435            TRESPASS();
436        }
437    }
438
439    AString lang;
440    CHECK(format->findString("language", &lang));
441
442    reply->writeInt32(2); // write something non-zero
443    reply->writeInt32(trackType);
444    reply->writeString16(String16(mime.c_str()));
445    reply->writeString16(String16(lang.c_str()));
446
447    if (trackType == MEDIA_TRACK_TYPE_SUBTITLE) {
448        int32_t isAuto, isDefault, isForced;
449        CHECK(format->findInt32("auto", &isAuto));
450        CHECK(format->findInt32("default", &isDefault));
451        CHECK(format->findInt32("forced", &isForced));
452
453        reply->writeInt32(isAuto);
454        reply->writeInt32(isDefault);
455        reply->writeInt32(isForced);
456    }
457}
458
459void NuPlayer::onMessageReceived(const sp<AMessage> &msg) {
460    switch (msg->what()) {
461        case kWhatSetDataSource:
462        {
463            ALOGV("kWhatSetDataSource");
464
465            CHECK(mSource == NULL);
466
467            status_t err = OK;
468            sp<RefBase> obj;
469            CHECK(msg->findObject("source", &obj));
470            if (obj != NULL) {
471                mSource = static_cast<Source *>(obj.get());
472            } else {
473                err = UNKNOWN_ERROR;
474            }
475
476            CHECK(mDriver != NULL);
477            sp<NuPlayerDriver> driver = mDriver.promote();
478            if (driver != NULL) {
479                driver->notifySetDataSourceCompleted(err);
480            }
481            break;
482        }
483
484        case kWhatPrepare:
485        {
486            mSource->prepareAsync();
487            break;
488        }
489
490        case kWhatGetTrackInfo:
491        {
492            sp<AReplyToken> replyID;
493            CHECK(msg->senderAwaitsResponse(&replyID));
494
495            Parcel* reply;
496            CHECK(msg->findPointer("reply", (void**)&reply));
497
498            size_t inbandTracks = 0;
499            if (mSource != NULL) {
500                inbandTracks = mSource->getTrackCount();
501            }
502
503            size_t ccTracks = 0;
504            if (mCCDecoder != NULL) {
505                ccTracks = mCCDecoder->getTrackCount();
506            }
507
508            // total track count
509            reply->writeInt32(inbandTracks + ccTracks);
510
511            // write inband tracks
512            for (size_t i = 0; i < inbandTracks; ++i) {
513                writeTrackInfo(reply, mSource->getTrackInfo(i));
514            }
515
516            // write CC track
517            for (size_t i = 0; i < ccTracks; ++i) {
518                writeTrackInfo(reply, mCCDecoder->getTrackInfo(i));
519            }
520
521            sp<AMessage> response = new AMessage;
522            response->postReply(replyID);
523            break;
524        }
525
526        case kWhatGetSelectedTrack:
527        {
528            status_t err = INVALID_OPERATION;
529            if (mSource != NULL) {
530                err = OK;
531
532                int32_t type32;
533                CHECK(msg->findInt32("type", (int32_t*)&type32));
534                media_track_type type = (media_track_type)type32;
535                ssize_t selectedTrack = mSource->getSelectedTrack(type);
536
537                Parcel* reply;
538                CHECK(msg->findPointer("reply", (void**)&reply));
539                reply->writeInt32(selectedTrack);
540            }
541
542            sp<AMessage> response = new AMessage;
543            response->setInt32("err", err);
544
545            sp<AReplyToken> replyID;
546            CHECK(msg->senderAwaitsResponse(&replyID));
547            response->postReply(replyID);
548            break;
549        }
550
551        case kWhatSelectTrack:
552        {
553            sp<AReplyToken> replyID;
554            CHECK(msg->senderAwaitsResponse(&replyID));
555
556            size_t trackIndex;
557            int32_t select;
558            int64_t timeUs;
559            CHECK(msg->findSize("trackIndex", &trackIndex));
560            CHECK(msg->findInt32("select", &select));
561            CHECK(msg->findInt64("timeUs", &timeUs));
562
563            status_t err = INVALID_OPERATION;
564
565            size_t inbandTracks = 0;
566            if (mSource != NULL) {
567                inbandTracks = mSource->getTrackCount();
568            }
569            size_t ccTracks = 0;
570            if (mCCDecoder != NULL) {
571                ccTracks = mCCDecoder->getTrackCount();
572            }
573
574            if (trackIndex < inbandTracks) {
575                err = mSource->selectTrack(trackIndex, select, timeUs);
576
577                if (!select && err == OK) {
578                    int32_t type;
579                    sp<AMessage> info = mSource->getTrackInfo(trackIndex);
580                    if (info != NULL
581                            && info->findInt32("type", &type)
582                            && type == MEDIA_TRACK_TYPE_TIMEDTEXT) {
583                        ++mTimedTextGeneration;
584                    }
585                }
586            } else {
587                trackIndex -= inbandTracks;
588
589                if (trackIndex < ccTracks) {
590                    err = mCCDecoder->selectTrack(trackIndex, select);
591                }
592            }
593
594            sp<AMessage> response = new AMessage;
595            response->setInt32("err", err);
596
597            response->postReply(replyID);
598            break;
599        }
600
601        case kWhatPollDuration:
602        {
603            int32_t generation;
604            CHECK(msg->findInt32("generation", &generation));
605
606            if (generation != mPollDurationGeneration) {
607                // stale
608                break;
609            }
610
611            int64_t durationUs;
612            if (mDriver != NULL && mSource->getDuration(&durationUs) == OK) {
613                sp<NuPlayerDriver> driver = mDriver.promote();
614                if (driver != NULL) {
615                    driver->notifyDuration(durationUs);
616                }
617            }
618
619            msg->post(1000000ll);  // poll again in a second.
620            break;
621        }
622
623        case kWhatSetVideoSurface:
624        {
625            ALOGV("kWhatSetVideoSurface");
626
627            sp<RefBase> obj;
628            CHECK(msg->findObject("surface", &obj));
629            sp<Surface> surface = static_cast<Surface *>(obj.get());
630            if (mSource == NULL || mSource->getFormat(false /* audio */) == NULL) {
631                performSetSurface(surface);
632                break;
633            }
634
635            mDeferredActions.push_back(
636                    new FlushDecoderAction(FLUSH_CMD_FLUSH /* audio */,
637                                           FLUSH_CMD_SHUTDOWN /* video */));
638
639            mDeferredActions.push_back(new SetSurfaceAction(surface));
640
641            if (obj != NULL) {
642                if (mStarted) {
643                    // Issue a seek to refresh the video screen only if started otherwise
644                    // the extractor may not yet be started and will assert.
645                    // If the video decoder is not set (perhaps audio only in this case)
646                    // do not perform a seek as it is not needed.
647                    int64_t currentPositionUs = 0;
648                    if (getCurrentPosition(&currentPositionUs) == OK) {
649                        mDeferredActions.push_back(
650                                new SeekAction(currentPositionUs));
651                    }
652                }
653
654                // If there is a new surface texture, instantiate decoders
655                // again if possible.
656                mDeferredActions.push_back(
657                        new SimpleAction(&NuPlayer::performScanSources));
658            }
659
660            // After a flush without shutdown, decoder is paused.
661            // Don't resume it until source seek is done, otherwise it could
662            // start pulling stale data too soon.
663            mDeferredActions.push_back(
664                    new ResumeDecoderAction(false /* needNotify */));
665
666            processDeferredActions();
667            break;
668        }
669
670        case kWhatSetAudioSink:
671        {
672            ALOGV("kWhatSetAudioSink");
673
674            sp<RefBase> obj;
675            CHECK(msg->findObject("sink", &obj));
676
677            mAudioSink = static_cast<MediaPlayerBase::AudioSink *>(obj.get());
678            break;
679        }
680
681        case kWhatStart:
682        {
683            ALOGV("kWhatStart");
684            if (mStarted) {
685                // do not resume yet if the source is still buffering
686                if (!mPausedForBuffering) {
687                    onResume();
688                }
689            } else {
690                onStart();
691            }
692            mPausedByClient = false;
693            break;
694        }
695
696        case kWhatConfigPlayback:
697        {
698            sp<AReplyToken> replyID;
699            CHECK(msg->senderAwaitsResponse(&replyID));
700            AudioPlaybackRate rate /* sanitized */;
701            readFromAMessage(msg, &rate);
702            status_t err = OK;
703            if (mRenderer != NULL) {
704                err = mRenderer->setPlaybackSettings(rate);
705            }
706            if (err == OK) {
707                if (rate.mSpeed == 0.f) {
708                    onPause();
709                    // save all other settings (using non-paused speed)
710                    // so we can restore them on start
711                    AudioPlaybackRate newRate = rate;
712                    newRate.mSpeed = mPlaybackSettings.mSpeed;
713                    mPlaybackSettings = newRate;
714                } else { /* rate.mSpeed != 0.f */
715                    onResume();
716                    mPlaybackSettings = rate;
717                }
718            }
719
720            if (mVideoDecoder != NULL) {
721                float rate = getFrameRate();
722                if (rate > 0) {
723                    sp<AMessage> params = new AMessage();
724                    params->setFloat("operating-rate", rate * mPlaybackSettings.mSpeed);
725                    mVideoDecoder->setParameters(params);
726                }
727            }
728
729            sp<AMessage> response = new AMessage;
730            response->setInt32("err", err);
731            response->postReply(replyID);
732            break;
733        }
734
735        case kWhatGetPlaybackSettings:
736        {
737            sp<AReplyToken> replyID;
738            CHECK(msg->senderAwaitsResponse(&replyID));
739            AudioPlaybackRate rate = mPlaybackSettings;
740            status_t err = OK;
741            if (mRenderer != NULL) {
742                err = mRenderer->getPlaybackSettings(&rate);
743            }
744            if (err == OK) {
745                // get playback settings used by renderer, as it may be
746                // slightly off due to audiosink not taking small changes.
747                mPlaybackSettings = rate;
748                if (mPaused) {
749                    rate.mSpeed = 0.f;
750                }
751            }
752            sp<AMessage> response = new AMessage;
753            if (err == OK) {
754                writeToAMessage(response, rate);
755            }
756            response->setInt32("err", err);
757            response->postReply(replyID);
758            break;
759        }
760
761        case kWhatConfigSync:
762        {
763            sp<AReplyToken> replyID;
764            CHECK(msg->senderAwaitsResponse(&replyID));
765
766            ALOGV("kWhatConfigSync");
767            AVSyncSettings sync;
768            float videoFpsHint;
769            readFromAMessage(msg, &sync, &videoFpsHint);
770            status_t err = OK;
771            if (mRenderer != NULL) {
772                err = mRenderer->setSyncSettings(sync, videoFpsHint);
773            }
774            if (err == OK) {
775                mSyncSettings = sync;
776                mVideoFpsHint = videoFpsHint;
777            }
778            sp<AMessage> response = new AMessage;
779            response->setInt32("err", err);
780            response->postReply(replyID);
781            break;
782        }
783
784        case kWhatGetSyncSettings:
785        {
786            sp<AReplyToken> replyID;
787            CHECK(msg->senderAwaitsResponse(&replyID));
788            AVSyncSettings sync = mSyncSettings;
789            float videoFps = mVideoFpsHint;
790            status_t err = OK;
791            if (mRenderer != NULL) {
792                err = mRenderer->getSyncSettings(&sync, &videoFps);
793                if (err == OK) {
794                    mSyncSettings = sync;
795                    mVideoFpsHint = videoFps;
796                }
797            }
798            sp<AMessage> response = new AMessage;
799            if (err == OK) {
800                writeToAMessage(response, sync, videoFps);
801            }
802            response->setInt32("err", err);
803            response->postReply(replyID);
804            break;
805        }
806
807        case kWhatScanSources:
808        {
809            int32_t generation;
810            CHECK(msg->findInt32("generation", &generation));
811            if (generation != mScanSourcesGeneration) {
812                // Drop obsolete msg.
813                break;
814            }
815
816            mScanSourcesPending = false;
817
818            ALOGV("scanning sources haveAudio=%d, haveVideo=%d",
819                 mAudioDecoder != NULL, mVideoDecoder != NULL);
820
821            bool mHadAnySourcesBefore =
822                (mAudioDecoder != NULL) || (mVideoDecoder != NULL);
823
824            // initialize video before audio because successful initialization of
825            // video may change deep buffer mode of audio.
826            if (mSurface != NULL) {
827                instantiateDecoder(false, &mVideoDecoder);
828            }
829
830            // Don't try to re-open audio sink if there's an existing decoder.
831            if (mAudioSink != NULL && mAudioDecoder == NULL) {
832                sp<MetaData> audioMeta = mSource->getFormatMeta(true /* audio */);
833                sp<AMessage> videoFormat = mSource->getFormat(false /* audio */);
834                audio_stream_type_t streamType = mAudioSink->getAudioStreamType();
835                const bool hasVideo = (videoFormat != NULL);
836                const bool canOffload = canOffloadStream(
837                        audioMeta, hasVideo, true /* is_streaming */, streamType);
838                if (canOffload) {
839                    if (!mOffloadAudio) {
840                        mRenderer->signalEnableOffloadAudio();
841                    }
842                    // open audio sink early under offload mode.
843                    sp<AMessage> format = mSource->getFormat(true /*audio*/);
844                    tryOpenAudioSinkForOffload(format, hasVideo);
845                }
846                instantiateDecoder(true, &mAudioDecoder);
847            }
848
849            if (!mHadAnySourcesBefore
850                    && (mAudioDecoder != NULL || mVideoDecoder != NULL)) {
851                // This is the first time we've found anything playable.
852
853                if (mSourceFlags & Source::FLAG_DYNAMIC_DURATION) {
854                    schedulePollDuration();
855                }
856            }
857
858            status_t err;
859            if ((err = mSource->feedMoreTSData()) != OK) {
860                if (mAudioDecoder == NULL && mVideoDecoder == NULL) {
861                    // We're not currently decoding anything (no audio or
862                    // video tracks found) and we just ran out of input data.
863
864                    if (err == ERROR_END_OF_STREAM) {
865                        notifyListener(MEDIA_PLAYBACK_COMPLETE, 0, 0);
866                    } else {
867                        notifyListener(MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, err);
868                    }
869                }
870                break;
871            }
872
873            if ((mAudioDecoder == NULL && mAudioSink != NULL)
874                    || (mVideoDecoder == NULL && mSurface != NULL)) {
875                msg->post(100000ll);
876                mScanSourcesPending = true;
877            }
878            break;
879        }
880
881        case kWhatVideoNotify:
882        case kWhatAudioNotify:
883        {
884            bool audio = msg->what() == kWhatAudioNotify;
885
886            int32_t currentDecoderGeneration =
887                (audio? mAudioDecoderGeneration : mVideoDecoderGeneration);
888            int32_t requesterGeneration = currentDecoderGeneration - 1;
889            CHECK(msg->findInt32("generation", &requesterGeneration));
890
891            if (requesterGeneration != currentDecoderGeneration) {
892                ALOGV("got message from old %s decoder, generation(%d:%d)",
893                        audio ? "audio" : "video", requesterGeneration,
894                        currentDecoderGeneration);
895                sp<AMessage> reply;
896                if (!(msg->findMessage("reply", &reply))) {
897                    return;
898                }
899
900                reply->setInt32("err", INFO_DISCONTINUITY);
901                reply->post();
902                return;
903            }
904
905            int32_t what;
906            CHECK(msg->findInt32("what", &what));
907
908            if (what == DecoderBase::kWhatInputDiscontinuity) {
909                int32_t formatChange;
910                CHECK(msg->findInt32("formatChange", &formatChange));
911
912                ALOGV("%s discontinuity: formatChange %d",
913                        audio ? "audio" : "video", formatChange);
914
915                if (formatChange) {
916                    mDeferredActions.push_back(
917                            new FlushDecoderAction(
918                                audio ? FLUSH_CMD_SHUTDOWN : FLUSH_CMD_NONE,
919                                audio ? FLUSH_CMD_NONE : FLUSH_CMD_SHUTDOWN));
920                }
921
922                mDeferredActions.push_back(
923                        new SimpleAction(
924                                &NuPlayer::performScanSources));
925
926                processDeferredActions();
927            } else if (what == DecoderBase::kWhatEOS) {
928                int32_t err;
929                CHECK(msg->findInt32("err", &err));
930
931                if (err == ERROR_END_OF_STREAM) {
932                    ALOGV("got %s decoder EOS", audio ? "audio" : "video");
933                } else {
934                    ALOGV("got %s decoder EOS w/ error %d",
935                         audio ? "audio" : "video",
936                         err);
937                }
938
939                mRenderer->queueEOS(audio, err);
940            } else if (what == DecoderBase::kWhatFlushCompleted) {
941                ALOGV("decoder %s flush completed", audio ? "audio" : "video");
942
943                handleFlushComplete(audio, true /* isDecoder */);
944                finishFlushIfPossible();
945            } else if (what == DecoderBase::kWhatVideoSizeChanged) {
946                sp<AMessage> format;
947                CHECK(msg->findMessage("format", &format));
948
949                sp<AMessage> inputFormat =
950                        mSource->getFormat(false /* audio */);
951
952                updateVideoSize(inputFormat, format);
953            } else if (what == DecoderBase::kWhatShutdownCompleted) {
954                ALOGV("%s shutdown completed", audio ? "audio" : "video");
955                if (audio) {
956                    mAudioDecoder.clear();
957                    ++mAudioDecoderGeneration;
958
959                    CHECK_EQ((int)mFlushingAudio, (int)SHUTTING_DOWN_DECODER);
960                    mFlushingAudio = SHUT_DOWN;
961                } else {
962                    mVideoDecoder.clear();
963                    ++mVideoDecoderGeneration;
964
965                    CHECK_EQ((int)mFlushingVideo, (int)SHUTTING_DOWN_DECODER);
966                    mFlushingVideo = SHUT_DOWN;
967                }
968
969                finishFlushIfPossible();
970            } else if (what == DecoderBase::kWhatResumeCompleted) {
971                finishResume();
972            } else if (what == DecoderBase::kWhatError) {
973                status_t err;
974                if (!msg->findInt32("err", &err) || err == OK) {
975                    err = UNKNOWN_ERROR;
976                }
977
978                // Decoder errors can be due to Source (e.g. from streaming),
979                // or from decoding corrupted bitstreams, or from other decoder
980                // MediaCodec operations (e.g. from an ongoing reset or seek).
981                // They may also be due to openAudioSink failure at
982                // decoder start or after a format change.
983                //
984                // We try to gracefully shut down the affected decoder if possible,
985                // rather than trying to force the shutdown with something
986                // similar to performReset(). This method can lead to a hang
987                // if MediaCodec functions block after an error, but they should
988                // typically return INVALID_OPERATION instead of blocking.
989
990                FlushStatus *flushing = audio ? &mFlushingAudio : &mFlushingVideo;
991                ALOGE("received error(%#x) from %s decoder, flushing(%d), now shutting down",
992                        err, audio ? "audio" : "video", *flushing);
993
994                switch (*flushing) {
995                    case NONE:
996                        mDeferredActions.push_back(
997                                new FlushDecoderAction(
998                                    audio ? FLUSH_CMD_SHUTDOWN : FLUSH_CMD_NONE,
999                                    audio ? FLUSH_CMD_NONE : FLUSH_CMD_SHUTDOWN));
1000                        processDeferredActions();
1001                        break;
1002                    case FLUSHING_DECODER:
1003                        *flushing = FLUSHING_DECODER_SHUTDOWN; // initiate shutdown after flush.
1004                        break; // Wait for flush to complete.
1005                    case FLUSHING_DECODER_SHUTDOWN:
1006                        break; // Wait for flush to complete.
1007                    case SHUTTING_DOWN_DECODER:
1008                        break; // Wait for shutdown to complete.
1009                    case FLUSHED:
1010                        // Widevine source reads must stop before releasing the video decoder.
1011                        if (!audio && mSource != NULL && mSourceFlags & Source::FLAG_SECURE) {
1012                            mSource->stop();
1013                        }
1014                        getDecoder(audio)->initiateShutdown(); // In the middle of a seek.
1015                        *flushing = SHUTTING_DOWN_DECODER;     // Shut down.
1016                        break;
1017                    case SHUT_DOWN:
1018                        finishFlushIfPossible();  // Should not occur.
1019                        break;                    // Finish anyways.
1020                }
1021                notifyListener(MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, err);
1022            } else {
1023                ALOGV("Unhandled decoder notification %d '%c%c%c%c'.",
1024                      what,
1025                      what >> 24,
1026                      (what >> 16) & 0xff,
1027                      (what >> 8) & 0xff,
1028                      what & 0xff);
1029            }
1030
1031            break;
1032        }
1033
1034        case kWhatRendererNotify:
1035        {
1036            int32_t requesterGeneration = mRendererGeneration - 1;
1037            CHECK(msg->findInt32("generation", &requesterGeneration));
1038            if (requesterGeneration != mRendererGeneration) {
1039                ALOGV("got message from old renderer, generation(%d:%d)",
1040                        requesterGeneration, mRendererGeneration);
1041                return;
1042            }
1043
1044            int32_t what;
1045            CHECK(msg->findInt32("what", &what));
1046
1047            if (what == Renderer::kWhatEOS) {
1048                int32_t audio;
1049                CHECK(msg->findInt32("audio", &audio));
1050
1051                int32_t finalResult;
1052                CHECK(msg->findInt32("finalResult", &finalResult));
1053
1054                if (audio) {
1055                    mAudioEOS = true;
1056                } else {
1057                    mVideoEOS = true;
1058                }
1059
1060                if (finalResult == ERROR_END_OF_STREAM) {
1061                    ALOGV("reached %s EOS", audio ? "audio" : "video");
1062                } else {
1063                    ALOGE("%s track encountered an error (%d)",
1064                         audio ? "audio" : "video", finalResult);
1065
1066                    notifyListener(
1067                            MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, finalResult);
1068                }
1069
1070                if ((mAudioEOS || mAudioDecoder == NULL)
1071                        && (mVideoEOS || mVideoDecoder == NULL)) {
1072                    notifyListener(MEDIA_PLAYBACK_COMPLETE, 0, 0);
1073                }
1074            } else if (what == Renderer::kWhatFlushComplete) {
1075                int32_t audio;
1076                CHECK(msg->findInt32("audio", &audio));
1077
1078                ALOGV("renderer %s flush completed.", audio ? "audio" : "video");
1079                handleFlushComplete(audio, false /* isDecoder */);
1080                finishFlushIfPossible();
1081            } else if (what == Renderer::kWhatVideoRenderingStart) {
1082                notifyListener(MEDIA_INFO, MEDIA_INFO_RENDERING_START, 0);
1083            } else if (what == Renderer::kWhatMediaRenderingStart) {
1084                ALOGV("media rendering started");
1085                notifyListener(MEDIA_STARTED, 0, 0);
1086            } else if (what == Renderer::kWhatAudioTearDown) {
1087                int64_t positionUs;
1088                CHECK(msg->findInt64("positionUs", &positionUs));
1089                int32_t reason;
1090                CHECK(msg->findInt32("reason", &reason));
1091                ALOGV("Tear down audio with reason %d.", reason);
1092                closeAudioSink();
1093                mAudioDecoder.clear();
1094                ++mAudioDecoderGeneration;
1095                mRenderer->flush(
1096                        true /* audio */, false /* notifyComplete */);
1097                if (mVideoDecoder != NULL) {
1098                    mRenderer->flush(
1099                            false /* audio */, false /* notifyComplete */);
1100                }
1101
1102                performSeek(positionUs);
1103
1104                if (reason == Renderer::kDueToError) {
1105                    sp<MetaData> audioMeta = mSource->getFormatMeta(true /* audio */);
1106                    sp<AMessage> videoFormat = mSource->getFormat(false /* audio */);
1107                    audio_stream_type_t streamType = mAudioSink->getAudioStreamType();
1108                    const bool hasVideo = (videoFormat != NULL);
1109                    const bool canOffload = canOffloadStream(
1110                            audioMeta, hasVideo, true /* is_streaming */, streamType);
1111                    if (canOffload) {
1112                        mRenderer->signalEnableOffloadAudio();
1113                        sp<AMessage> format = mSource->getFormat(true /*audio*/);
1114                        tryOpenAudioSinkForOffload(format, hasVideo);
1115                    } else {
1116                        mRenderer->signalDisableOffloadAudio();
1117                        mOffloadAudio = false;
1118                    }
1119                    instantiateDecoder(true /* audio */, &mAudioDecoder);
1120                }
1121            }
1122            break;
1123        }
1124
1125        case kWhatMoreDataQueued:
1126        {
1127            break;
1128        }
1129
1130        case kWhatReset:
1131        {
1132            ALOGV("kWhatReset");
1133
1134            mDeferredActions.push_back(
1135                    new FlushDecoderAction(
1136                        FLUSH_CMD_SHUTDOWN /* audio */,
1137                        FLUSH_CMD_SHUTDOWN /* video */));
1138
1139            mDeferredActions.push_back(
1140                    new SimpleAction(&NuPlayer::performReset));
1141
1142            processDeferredActions();
1143            break;
1144        }
1145
1146        case kWhatSeek:
1147        {
1148            int64_t seekTimeUs;
1149            int32_t needNotify;
1150            CHECK(msg->findInt64("seekTimeUs", &seekTimeUs));
1151            CHECK(msg->findInt32("needNotify", &needNotify));
1152
1153            ALOGV("kWhatSeek seekTimeUs=%lld us, needNotify=%d",
1154                    (long long)seekTimeUs, needNotify);
1155
1156            if (!mStarted) {
1157                // Seek before the player is started. In order to preview video,
1158                // need to start the player and pause it. This branch is called
1159                // only once if needed. After the player is started, any seek
1160                // operation will go through normal path.
1161                // All cases, including audio-only, are handled in the same way
1162                // for the sake of simplicity.
1163                onStart(seekTimeUs);
1164                onPause();
1165                mPausedByClient = true;
1166                if (needNotify) {
1167                    notifyDriverSeekComplete();
1168                }
1169                break;
1170            }
1171
1172            mDeferredActions.push_back(
1173                    new FlushDecoderAction(FLUSH_CMD_FLUSH /* audio */,
1174                                           FLUSH_CMD_FLUSH /* video */));
1175
1176            mDeferredActions.push_back(
1177                    new SeekAction(seekTimeUs));
1178
1179            // After a flush without shutdown, decoder is paused.
1180            // Don't resume it until source seek is done, otherwise it could
1181            // start pulling stale data too soon.
1182            mDeferredActions.push_back(
1183                    new ResumeDecoderAction(needNotify));
1184
1185            processDeferredActions();
1186            break;
1187        }
1188
1189        case kWhatPause:
1190        {
1191            onPause();
1192            mPausedByClient = true;
1193            break;
1194        }
1195
1196        case kWhatSourceNotify:
1197        {
1198            onSourceNotify(msg);
1199            break;
1200        }
1201
1202        case kWhatClosedCaptionNotify:
1203        {
1204            onClosedCaptionNotify(msg);
1205            break;
1206        }
1207
1208        default:
1209            TRESPASS();
1210            break;
1211    }
1212}
1213
1214void NuPlayer::onResume() {
1215    if (!mPaused) {
1216        return;
1217    }
1218    mPaused = false;
1219    if (mSource != NULL) {
1220        mSource->resume();
1221    } else {
1222        ALOGW("resume called when source is gone or not set");
1223    }
1224    // |mAudioDecoder| may have been released due to the pause timeout, so re-create it if
1225    // needed.
1226    if (audioDecoderStillNeeded() && mAudioDecoder == NULL) {
1227        instantiateDecoder(true /* audio */, &mAudioDecoder);
1228    }
1229    if (mRenderer != NULL) {
1230        mRenderer->resume();
1231    } else {
1232        ALOGW("resume called when renderer is gone or not set");
1233    }
1234}
1235
1236status_t NuPlayer::onInstantiateSecureDecoders() {
1237    status_t err;
1238    if (!(mSourceFlags & Source::FLAG_SECURE)) {
1239        return BAD_TYPE;
1240    }
1241
1242    if (mRenderer != NULL) {
1243        ALOGE("renderer should not be set when instantiating secure decoders");
1244        return UNKNOWN_ERROR;
1245    }
1246
1247    // TRICKY: We rely on mRenderer being null, so that decoder does not start requesting
1248    // data on instantiation.
1249    if (mSurface != NULL) {
1250        err = instantiateDecoder(false, &mVideoDecoder);
1251        if (err != OK) {
1252            return err;
1253        }
1254    }
1255
1256    if (mAudioSink != NULL) {
1257        err = instantiateDecoder(true, &mAudioDecoder);
1258        if (err != OK) {
1259            return err;
1260        }
1261    }
1262    return OK;
1263}
1264
1265void NuPlayer::onStart(int64_t startPositionUs) {
1266    mOffloadAudio = false;
1267    mAudioEOS = false;
1268    mVideoEOS = false;
1269    mStarted = true;
1270
1271    mSource->start();
1272    if (startPositionUs > 0) {
1273        performSeek(startPositionUs);
1274    }
1275
1276    uint32_t flags = 0;
1277
1278    if (mSource->isRealTime()) {
1279        flags |= Renderer::FLAG_REAL_TIME;
1280    }
1281
1282    sp<MetaData> audioMeta = mSource->getFormatMeta(true /* audio */);
1283    audio_stream_type_t streamType = AUDIO_STREAM_MUSIC;
1284    if (mAudioSink != NULL) {
1285        streamType = mAudioSink->getAudioStreamType();
1286    }
1287
1288    sp<AMessage> videoFormat = mSource->getFormat(false /* audio */);
1289
1290    mOffloadAudio =
1291        canOffloadStream(audioMeta, (videoFormat != NULL),
1292                         true /* is_streaming */, streamType);
1293    if (mOffloadAudio) {
1294        flags |= Renderer::FLAG_OFFLOAD_AUDIO;
1295    }
1296
1297    sp<AMessage> notify = new AMessage(kWhatRendererNotify, this);
1298    ++mRendererGeneration;
1299    notify->setInt32("generation", mRendererGeneration);
1300    mRenderer = new Renderer(mAudioSink, notify, flags);
1301    mRendererLooper = new ALooper;
1302    mRendererLooper->setName("NuPlayerRenderer");
1303    mRendererLooper->start(false, false, ANDROID_PRIORITY_AUDIO);
1304    mRendererLooper->registerHandler(mRenderer);
1305
1306    status_t err = mRenderer->setPlaybackSettings(mPlaybackSettings);
1307    if (err != OK) {
1308        mSource->stop();
1309        notifyListener(MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, err);
1310        return;
1311    }
1312
1313    float rate = getFrameRate();
1314    if (rate > 0) {
1315        mRenderer->setVideoFrameRate(rate);
1316    }
1317
1318    if (mVideoDecoder != NULL) {
1319        mVideoDecoder->setRenderer(mRenderer);
1320    }
1321    if (mAudioDecoder != NULL) {
1322        mAudioDecoder->setRenderer(mRenderer);
1323    }
1324
1325    postScanSources();
1326}
1327
1328void NuPlayer::onPause() {
1329    if (mPaused) {
1330        return;
1331    }
1332    mPaused = true;
1333    if (mSource != NULL) {
1334        mSource->pause();
1335    } else {
1336        ALOGW("pause called when source is gone or not set");
1337    }
1338    if (mRenderer != NULL) {
1339        mRenderer->pause();
1340    } else {
1341        ALOGW("pause called when renderer is gone or not set");
1342    }
1343}
1344
1345bool NuPlayer::audioDecoderStillNeeded() {
1346    // Audio decoder is no longer needed if it's in shut/shutting down status.
1347    return ((mFlushingAudio != SHUT_DOWN) && (mFlushingAudio != SHUTTING_DOWN_DECODER));
1348}
1349
1350void NuPlayer::handleFlushComplete(bool audio, bool isDecoder) {
1351    // We wait for both the decoder flush and the renderer flush to complete
1352    // before entering either the FLUSHED or the SHUTTING_DOWN_DECODER state.
1353
1354    mFlushComplete[audio][isDecoder] = true;
1355    if (!mFlushComplete[audio][!isDecoder]) {
1356        return;
1357    }
1358
1359    FlushStatus *state = audio ? &mFlushingAudio : &mFlushingVideo;
1360    switch (*state) {
1361        case FLUSHING_DECODER:
1362        {
1363            *state = FLUSHED;
1364            break;
1365        }
1366
1367        case FLUSHING_DECODER_SHUTDOWN:
1368        {
1369            *state = SHUTTING_DOWN_DECODER;
1370
1371            ALOGV("initiating %s decoder shutdown", audio ? "audio" : "video");
1372            if (!audio) {
1373                // Widevine source reads must stop before releasing the video decoder.
1374                if (mSource != NULL && mSourceFlags & Source::FLAG_SECURE) {
1375                    mSource->stop();
1376                }
1377            }
1378            getDecoder(audio)->initiateShutdown();
1379            break;
1380        }
1381
1382        default:
1383            // decoder flush completes only occur in a flushing state.
1384            LOG_ALWAYS_FATAL_IF(isDecoder, "decoder flush in invalid state %d", *state);
1385            break;
1386    }
1387}
1388
1389void NuPlayer::finishFlushIfPossible() {
1390    if (mFlushingAudio != NONE && mFlushingAudio != FLUSHED
1391            && mFlushingAudio != SHUT_DOWN) {
1392        return;
1393    }
1394
1395    if (mFlushingVideo != NONE && mFlushingVideo != FLUSHED
1396            && mFlushingVideo != SHUT_DOWN) {
1397        return;
1398    }
1399
1400    ALOGV("both audio and video are flushed now.");
1401
1402    mFlushingAudio = NONE;
1403    mFlushingVideo = NONE;
1404
1405    clearFlushComplete();
1406
1407    processDeferredActions();
1408}
1409
1410void NuPlayer::postScanSources() {
1411    if (mScanSourcesPending) {
1412        return;
1413    }
1414
1415    sp<AMessage> msg = new AMessage(kWhatScanSources, this);
1416    msg->setInt32("generation", mScanSourcesGeneration);
1417    msg->post();
1418
1419    mScanSourcesPending = true;
1420}
1421
1422void NuPlayer::tryOpenAudioSinkForOffload(const sp<AMessage> &format, bool hasVideo) {
1423    // Note: This is called early in NuPlayer to determine whether offloading
1424    // is possible; otherwise the decoders call the renderer openAudioSink directly.
1425
1426    status_t err = mRenderer->openAudioSink(
1427            format, true /* offloadOnly */, hasVideo, AUDIO_OUTPUT_FLAG_NONE, &mOffloadAudio);
1428    if (err != OK) {
1429        // Any failure we turn off mOffloadAudio.
1430        mOffloadAudio = false;
1431    } else if (mOffloadAudio) {
1432        sp<MetaData> audioMeta =
1433                mSource->getFormatMeta(true /* audio */);
1434        sendMetaDataToHal(mAudioSink, audioMeta);
1435    }
1436}
1437
1438void NuPlayer::closeAudioSink() {
1439    mRenderer->closeAudioSink();
1440}
1441
1442status_t NuPlayer::instantiateDecoder(bool audio, sp<DecoderBase> *decoder) {
1443    if (*decoder != NULL) {
1444        return OK;
1445    }
1446
1447    sp<AMessage> format = mSource->getFormat(audio);
1448
1449    if (format == NULL) {
1450        return -EWOULDBLOCK;
1451    }
1452
1453    format->setInt32("priority", 0 /* realtime */);
1454
1455    if (!audio) {
1456        AString mime;
1457        CHECK(format->findString("mime", &mime));
1458
1459        sp<AMessage> ccNotify = new AMessage(kWhatClosedCaptionNotify, this);
1460        if (mCCDecoder == NULL) {
1461            mCCDecoder = new CCDecoder(ccNotify);
1462        }
1463
1464        if (mSourceFlags & Source::FLAG_SECURE) {
1465            format->setInt32("secure", true);
1466        }
1467
1468        if (mSourceFlags & Source::FLAG_PROTECTED) {
1469            format->setInt32("protected", true);
1470        }
1471
1472        float rate = getFrameRate();
1473        if (rate > 0) {
1474            format->setFloat("operating-rate", rate * mPlaybackSettings.mSpeed);
1475        }
1476    }
1477
1478    if (audio) {
1479        sp<AMessage> notify = new AMessage(kWhatAudioNotify, this);
1480        ++mAudioDecoderGeneration;
1481        notify->setInt32("generation", mAudioDecoderGeneration);
1482
1483        if (mOffloadAudio) {
1484            const bool hasVideo = (mSource->getFormat(false /*audio */) != NULL);
1485            format->setInt32("has-video", hasVideo);
1486            *decoder = new DecoderPassThrough(notify, mSource, mRenderer);
1487        } else {
1488            *decoder = new Decoder(notify, mSource, mRenderer);
1489        }
1490    } else {
1491        sp<AMessage> notify = new AMessage(kWhatVideoNotify, this);
1492        ++mVideoDecoderGeneration;
1493        notify->setInt32("generation", mVideoDecoderGeneration);
1494
1495        *decoder = new Decoder(
1496                notify, mSource, mRenderer, mSurface, mCCDecoder);
1497
1498        // enable FRC if high-quality AV sync is requested, even if not
1499        // directly queuing to display, as this will even improve textureview
1500        // playback.
1501        {
1502            char value[PROPERTY_VALUE_MAX];
1503            if (property_get("persist.sys.media.avsync", value, NULL) &&
1504                    (!strcmp("1", value) || !strcasecmp("true", value))) {
1505                format->setInt32("auto-frc", 1);
1506            }
1507        }
1508    }
1509    (*decoder)->init();
1510    (*decoder)->configure(format);
1511
1512    // allocate buffers to decrypt widevine source buffers
1513    if (!audio && (mSourceFlags & Source::FLAG_SECURE)) {
1514        Vector<sp<ABuffer> > inputBufs;
1515        CHECK_EQ((*decoder)->getInputBuffers(&inputBufs), (status_t)OK);
1516
1517        Vector<MediaBuffer *> mediaBufs;
1518        for (size_t i = 0; i < inputBufs.size(); i++) {
1519            const sp<ABuffer> &buffer = inputBufs[i];
1520            MediaBuffer *mbuf = new MediaBuffer(buffer->data(), buffer->size());
1521            mediaBufs.push(mbuf);
1522        }
1523
1524        status_t err = mSource->setBuffers(audio, mediaBufs);
1525        if (err != OK) {
1526            for (size_t i = 0; i < mediaBufs.size(); ++i) {
1527                mediaBufs[i]->release();
1528            }
1529            mediaBufs.clear();
1530            ALOGE("Secure source didn't support secure mediaBufs.");
1531            return err;
1532        }
1533    }
1534    return OK;
1535}
1536
1537void NuPlayer::updateVideoSize(
1538        const sp<AMessage> &inputFormat,
1539        const sp<AMessage> &outputFormat) {
1540    if (inputFormat == NULL) {
1541        ALOGW("Unknown video size, reporting 0x0!");
1542        notifyListener(MEDIA_SET_VIDEO_SIZE, 0, 0);
1543        return;
1544    }
1545
1546    int32_t displayWidth, displayHeight;
1547    if (outputFormat != NULL) {
1548        int32_t width, height;
1549        CHECK(outputFormat->findInt32("width", &width));
1550        CHECK(outputFormat->findInt32("height", &height));
1551
1552        int32_t cropLeft, cropTop, cropRight, cropBottom;
1553        CHECK(outputFormat->findRect(
1554                    "crop",
1555                    &cropLeft, &cropTop, &cropRight, &cropBottom));
1556
1557        displayWidth = cropRight - cropLeft + 1;
1558        displayHeight = cropBottom - cropTop + 1;
1559
1560        ALOGV("Video output format changed to %d x %d "
1561             "(crop: %d x %d @ (%d, %d))",
1562             width, height,
1563             displayWidth,
1564             displayHeight,
1565             cropLeft, cropTop);
1566    } else {
1567        CHECK(inputFormat->findInt32("width", &displayWidth));
1568        CHECK(inputFormat->findInt32("height", &displayHeight));
1569
1570        ALOGV("Video input format %d x %d", displayWidth, displayHeight);
1571    }
1572
1573    // Take into account sample aspect ratio if necessary:
1574    int32_t sarWidth, sarHeight;
1575    if (inputFormat->findInt32("sar-width", &sarWidth)
1576            && inputFormat->findInt32("sar-height", &sarHeight)) {
1577        ALOGV("Sample aspect ratio %d : %d", sarWidth, sarHeight);
1578
1579        displayWidth = (displayWidth * sarWidth) / sarHeight;
1580
1581        ALOGV("display dimensions %d x %d", displayWidth, displayHeight);
1582    }
1583
1584    int32_t rotationDegrees;
1585    if (!inputFormat->findInt32("rotation-degrees", &rotationDegrees)) {
1586        rotationDegrees = 0;
1587    }
1588
1589    if (rotationDegrees == 90 || rotationDegrees == 270) {
1590        int32_t tmp = displayWidth;
1591        displayWidth = displayHeight;
1592        displayHeight = tmp;
1593    }
1594
1595    notifyListener(
1596            MEDIA_SET_VIDEO_SIZE,
1597            displayWidth,
1598            displayHeight);
1599}
1600
1601void NuPlayer::notifyListener(int msg, int ext1, int ext2, const Parcel *in) {
1602    if (mDriver == NULL) {
1603        return;
1604    }
1605
1606    sp<NuPlayerDriver> driver = mDriver.promote();
1607
1608    if (driver == NULL) {
1609        return;
1610    }
1611
1612    driver->notifyListener(msg, ext1, ext2, in);
1613}
1614
1615void NuPlayer::flushDecoder(bool audio, bool needShutdown) {
1616    ALOGV("[%s] flushDecoder needShutdown=%d",
1617          audio ? "audio" : "video", needShutdown);
1618
1619    const sp<DecoderBase> &decoder = getDecoder(audio);
1620    if (decoder == NULL) {
1621        ALOGI("flushDecoder %s without decoder present",
1622             audio ? "audio" : "video");
1623        return;
1624    }
1625
1626    // Make sure we don't continue to scan sources until we finish flushing.
1627    ++mScanSourcesGeneration;
1628    if (mScanSourcesPending) {
1629        mDeferredActions.push_back(
1630                new SimpleAction(&NuPlayer::performScanSources));
1631        mScanSourcesPending = false;
1632    }
1633
1634    decoder->signalFlush();
1635
1636    FlushStatus newStatus =
1637        needShutdown ? FLUSHING_DECODER_SHUTDOWN : FLUSHING_DECODER;
1638
1639    mFlushComplete[audio][false /* isDecoder */] = (mRenderer == NULL);
1640    mFlushComplete[audio][true /* isDecoder */] = false;
1641    if (audio) {
1642        ALOGE_IF(mFlushingAudio != NONE,
1643                "audio flushDecoder() is called in state %d", mFlushingAudio);
1644        mFlushingAudio = newStatus;
1645    } else {
1646        ALOGE_IF(mFlushingVideo != NONE,
1647                "video flushDecoder() is called in state %d", mFlushingVideo);
1648        mFlushingVideo = newStatus;
1649    }
1650}
1651
1652void NuPlayer::queueDecoderShutdown(
1653        bool audio, bool video, const sp<AMessage> &reply) {
1654    ALOGI("queueDecoderShutdown audio=%d, video=%d", audio, video);
1655
1656    mDeferredActions.push_back(
1657            new FlushDecoderAction(
1658                audio ? FLUSH_CMD_SHUTDOWN : FLUSH_CMD_NONE,
1659                video ? FLUSH_CMD_SHUTDOWN : FLUSH_CMD_NONE));
1660
1661    mDeferredActions.push_back(
1662            new SimpleAction(&NuPlayer::performScanSources));
1663
1664    mDeferredActions.push_back(new PostMessageAction(reply));
1665
1666    processDeferredActions();
1667}
1668
1669status_t NuPlayer::setVideoScalingMode(int32_t mode) {
1670    mVideoScalingMode = mode;
1671    if (mSurface != NULL) {
1672        status_t ret = native_window_set_scaling_mode(mSurface.get(), mVideoScalingMode);
1673        if (ret != OK) {
1674            ALOGE("Failed to set scaling mode (%d): %s",
1675                -ret, strerror(-ret));
1676            return ret;
1677        }
1678    }
1679    return OK;
1680}
1681
1682status_t NuPlayer::getTrackInfo(Parcel* reply) const {
1683    sp<AMessage> msg = new AMessage(kWhatGetTrackInfo, this);
1684    msg->setPointer("reply", reply);
1685
1686    sp<AMessage> response;
1687    status_t err = msg->postAndAwaitResponse(&response);
1688    return err;
1689}
1690
1691status_t NuPlayer::getSelectedTrack(int32_t type, Parcel* reply) const {
1692    sp<AMessage> msg = new AMessage(kWhatGetSelectedTrack, this);
1693    msg->setPointer("reply", reply);
1694    msg->setInt32("type", type);
1695
1696    sp<AMessage> response;
1697    status_t err = msg->postAndAwaitResponse(&response);
1698    if (err == OK && response != NULL) {
1699        CHECK(response->findInt32("err", &err));
1700    }
1701    return err;
1702}
1703
1704status_t NuPlayer::selectTrack(size_t trackIndex, bool select, int64_t timeUs) {
1705    sp<AMessage> msg = new AMessage(kWhatSelectTrack, this);
1706    msg->setSize("trackIndex", trackIndex);
1707    msg->setInt32("select", select);
1708    msg->setInt64("timeUs", timeUs);
1709
1710    sp<AMessage> response;
1711    status_t err = msg->postAndAwaitResponse(&response);
1712
1713    if (err != OK) {
1714        return err;
1715    }
1716
1717    if (!response->findInt32("err", &err)) {
1718        err = OK;
1719    }
1720
1721    return err;
1722}
1723
1724status_t NuPlayer::getCurrentPosition(int64_t *mediaUs) {
1725    sp<Renderer> renderer = mRenderer;
1726    if (renderer == NULL) {
1727        return NO_INIT;
1728    }
1729
1730    return renderer->getCurrentPosition(mediaUs);
1731}
1732
1733void NuPlayer::getStats(int64_t *numFramesTotal, int64_t *numFramesDropped) {
1734    sp<DecoderBase> decoder = getDecoder(false /* audio */);
1735    if (decoder != NULL) {
1736        decoder->getStats(numFramesTotal, numFramesDropped);
1737    } else {
1738        *numFramesTotal = 0;
1739        *numFramesDropped = 0;
1740    }
1741}
1742
1743sp<MetaData> NuPlayer::getFileMeta() {
1744    return mSource->getFileFormatMeta();
1745}
1746
1747float NuPlayer::getFrameRate() {
1748    sp<MetaData> meta = mSource->getFormatMeta(false /* audio */);
1749    if (meta == NULL) {
1750        return 0;
1751    }
1752    int32_t rate;
1753    if (!meta->findInt32(kKeyFrameRate, &rate)) {
1754        // fall back to try file meta
1755        sp<MetaData> fileMeta = getFileMeta();
1756        if (fileMeta == NULL) {
1757            ALOGW("source has video meta but not file meta");
1758            return -1;
1759        }
1760        int32_t fileMetaRate;
1761        if (!fileMeta->findInt32(kKeyFrameRate, &fileMetaRate)) {
1762            return -1;
1763        }
1764        return fileMetaRate;
1765    }
1766    return rate;
1767}
1768
1769void NuPlayer::schedulePollDuration() {
1770    sp<AMessage> msg = new AMessage(kWhatPollDuration, this);
1771    msg->setInt32("generation", mPollDurationGeneration);
1772    msg->post();
1773}
1774
1775void NuPlayer::cancelPollDuration() {
1776    ++mPollDurationGeneration;
1777}
1778
1779void NuPlayer::processDeferredActions() {
1780    while (!mDeferredActions.empty()) {
1781        // We won't execute any deferred actions until we're no longer in
1782        // an intermediate state, i.e. one more more decoders are currently
1783        // flushing or shutting down.
1784
1785        if (mFlushingAudio != NONE || mFlushingVideo != NONE) {
1786            // We're currently flushing, postpone the reset until that's
1787            // completed.
1788
1789            ALOGV("postponing action mFlushingAudio=%d, mFlushingVideo=%d",
1790                  mFlushingAudio, mFlushingVideo);
1791
1792            break;
1793        }
1794
1795        sp<Action> action = *mDeferredActions.begin();
1796        mDeferredActions.erase(mDeferredActions.begin());
1797
1798        action->execute(this);
1799    }
1800}
1801
1802void NuPlayer::performSeek(int64_t seekTimeUs) {
1803    ALOGV("performSeek seekTimeUs=%lld us (%.2f secs)",
1804          (long long)seekTimeUs,
1805          seekTimeUs / 1E6);
1806
1807    if (mSource == NULL) {
1808        // This happens when reset occurs right before the loop mode
1809        // asynchronously seeks to the start of the stream.
1810        LOG_ALWAYS_FATAL_IF(mAudioDecoder != NULL || mVideoDecoder != NULL,
1811                "mSource is NULL and decoders not NULL audio(%p) video(%p)",
1812                mAudioDecoder.get(), mVideoDecoder.get());
1813        return;
1814    }
1815    mSource->seekTo(seekTimeUs);
1816    ++mTimedTextGeneration;
1817
1818    // everything's flushed, continue playback.
1819}
1820
1821void NuPlayer::performDecoderFlush(FlushCommand audio, FlushCommand video) {
1822    ALOGV("performDecoderFlush audio=%d, video=%d", audio, video);
1823
1824    if ((audio == FLUSH_CMD_NONE || mAudioDecoder == NULL)
1825            && (video == FLUSH_CMD_NONE || mVideoDecoder == NULL)) {
1826        return;
1827    }
1828
1829    if (audio != FLUSH_CMD_NONE && mAudioDecoder != NULL) {
1830        flushDecoder(true /* audio */, (audio == FLUSH_CMD_SHUTDOWN));
1831    }
1832
1833    if (video != FLUSH_CMD_NONE && mVideoDecoder != NULL) {
1834        flushDecoder(false /* audio */, (video == FLUSH_CMD_SHUTDOWN));
1835    }
1836}
1837
1838void NuPlayer::performReset() {
1839    ALOGV("performReset");
1840
1841    CHECK(mAudioDecoder == NULL);
1842    CHECK(mVideoDecoder == NULL);
1843
1844    cancelPollDuration();
1845
1846    ++mScanSourcesGeneration;
1847    mScanSourcesPending = false;
1848
1849    if (mRendererLooper != NULL) {
1850        if (mRenderer != NULL) {
1851            mRendererLooper->unregisterHandler(mRenderer->id());
1852        }
1853        mRendererLooper->stop();
1854        mRendererLooper.clear();
1855    }
1856    mRenderer.clear();
1857    ++mRendererGeneration;
1858
1859    if (mSource != NULL) {
1860        mSource->stop();
1861
1862        mSource.clear();
1863    }
1864
1865    if (mDriver != NULL) {
1866        sp<NuPlayerDriver> driver = mDriver.promote();
1867        if (driver != NULL) {
1868            driver->notifyResetComplete();
1869        }
1870    }
1871
1872    mStarted = false;
1873}
1874
1875void NuPlayer::performScanSources() {
1876    ALOGV("performScanSources");
1877
1878    if (!mStarted) {
1879        return;
1880    }
1881
1882    if (mAudioDecoder == NULL || mVideoDecoder == NULL) {
1883        postScanSources();
1884    }
1885}
1886
1887void NuPlayer::performSetSurface(const sp<Surface> &surface) {
1888    ALOGV("performSetSurface");
1889
1890    mSurface = surface;
1891
1892    // XXX - ignore error from setVideoScalingMode for now
1893    setVideoScalingMode(mVideoScalingMode);
1894
1895    if (mDriver != NULL) {
1896        sp<NuPlayerDriver> driver = mDriver.promote();
1897        if (driver != NULL) {
1898            driver->notifySetSurfaceComplete();
1899        }
1900    }
1901}
1902
1903void NuPlayer::performResumeDecoders(bool needNotify) {
1904    if (needNotify) {
1905        mResumePending = true;
1906        if (mVideoDecoder == NULL) {
1907            // if audio-only, we can notify seek complete now,
1908            // as the resume operation will be relatively fast.
1909            finishResume();
1910        }
1911    }
1912
1913    if (mVideoDecoder != NULL) {
1914        // When there is continuous seek, MediaPlayer will cache the seek
1915        // position, and send down new seek request when previous seek is
1916        // complete. Let's wait for at least one video output frame before
1917        // notifying seek complete, so that the video thumbnail gets updated
1918        // when seekbar is dragged.
1919        mVideoDecoder->signalResume(needNotify);
1920    }
1921
1922    if (mAudioDecoder != NULL) {
1923        mAudioDecoder->signalResume(false /* needNotify */);
1924    }
1925}
1926
1927void NuPlayer::finishResume() {
1928    if (mResumePending) {
1929        mResumePending = false;
1930        notifyDriverSeekComplete();
1931    }
1932}
1933
1934void NuPlayer::notifyDriverSeekComplete() {
1935    if (mDriver != NULL) {
1936        sp<NuPlayerDriver> driver = mDriver.promote();
1937        if (driver != NULL) {
1938            driver->notifySeekComplete();
1939        }
1940    }
1941}
1942
1943void NuPlayer::onSourceNotify(const sp<AMessage> &msg) {
1944    int32_t what;
1945    CHECK(msg->findInt32("what", &what));
1946
1947    switch (what) {
1948        case Source::kWhatInstantiateSecureDecoders:
1949        {
1950            if (mSource == NULL) {
1951                // This is a stale notification from a source that was
1952                // asynchronously preparing when the client called reset().
1953                // We handled the reset, the source is gone.
1954                break;
1955            }
1956
1957            sp<AMessage> reply;
1958            CHECK(msg->findMessage("reply", &reply));
1959            status_t err = onInstantiateSecureDecoders();
1960            reply->setInt32("err", err);
1961            reply->post();
1962            break;
1963        }
1964
1965        case Source::kWhatPrepared:
1966        {
1967            if (mSource == NULL) {
1968                // This is a stale notification from a source that was
1969                // asynchronously preparing when the client called reset().
1970                // We handled the reset, the source is gone.
1971                break;
1972            }
1973
1974            int32_t err;
1975            CHECK(msg->findInt32("err", &err));
1976
1977            if (err != OK) {
1978                // shut down potential secure codecs in case client never calls reset
1979                mDeferredActions.push_back(
1980                        new FlushDecoderAction(FLUSH_CMD_SHUTDOWN /* audio */,
1981                                               FLUSH_CMD_SHUTDOWN /* video */));
1982                processDeferredActions();
1983            }
1984
1985            sp<NuPlayerDriver> driver = mDriver.promote();
1986            if (driver != NULL) {
1987                // notify duration first, so that it's definitely set when
1988                // the app received the "prepare complete" callback.
1989                int64_t durationUs;
1990                if (mSource->getDuration(&durationUs) == OK) {
1991                    driver->notifyDuration(durationUs);
1992                }
1993                driver->notifyPrepareCompleted(err);
1994            }
1995
1996            break;
1997        }
1998
1999        case Source::kWhatFlagsChanged:
2000        {
2001            uint32_t flags;
2002            CHECK(msg->findInt32("flags", (int32_t *)&flags));
2003
2004            sp<NuPlayerDriver> driver = mDriver.promote();
2005            if (driver != NULL) {
2006                if ((flags & NuPlayer::Source::FLAG_CAN_SEEK) == 0) {
2007                    driver->notifyListener(
2008                            MEDIA_INFO, MEDIA_INFO_NOT_SEEKABLE, 0);
2009                }
2010                driver->notifyFlagsChanged(flags);
2011            }
2012
2013            if ((mSourceFlags & Source::FLAG_DYNAMIC_DURATION)
2014                    && (!(flags & Source::FLAG_DYNAMIC_DURATION))) {
2015                cancelPollDuration();
2016            } else if (!(mSourceFlags & Source::FLAG_DYNAMIC_DURATION)
2017                    && (flags & Source::FLAG_DYNAMIC_DURATION)
2018                    && (mAudioDecoder != NULL || mVideoDecoder != NULL)) {
2019                schedulePollDuration();
2020            }
2021
2022            mSourceFlags = flags;
2023            break;
2024        }
2025
2026        case Source::kWhatVideoSizeChanged:
2027        {
2028            sp<AMessage> format;
2029            CHECK(msg->findMessage("format", &format));
2030
2031            updateVideoSize(format);
2032            break;
2033        }
2034
2035        case Source::kWhatBufferingUpdate:
2036        {
2037            int32_t percentage;
2038            CHECK(msg->findInt32("percentage", &percentage));
2039
2040            notifyListener(MEDIA_BUFFERING_UPDATE, percentage, 0);
2041            break;
2042        }
2043
2044        case Source::kWhatPauseOnBufferingStart:
2045        {
2046            // ignore if not playing
2047            if (mStarted) {
2048                ALOGI("buffer low, pausing...");
2049
2050                mPausedForBuffering = true;
2051                onPause();
2052            }
2053            // fall-thru
2054        }
2055
2056        case Source::kWhatBufferingStart:
2057        {
2058            notifyListener(MEDIA_INFO, MEDIA_INFO_BUFFERING_START, 0);
2059            break;
2060        }
2061
2062        case Source::kWhatResumeOnBufferingEnd:
2063        {
2064            // ignore if not playing
2065            if (mStarted) {
2066                ALOGI("buffer ready, resuming...");
2067
2068                mPausedForBuffering = false;
2069
2070                // do not resume yet if client didn't unpause
2071                if (!mPausedByClient) {
2072                    onResume();
2073                }
2074            }
2075            // fall-thru
2076        }
2077
2078        case Source::kWhatBufferingEnd:
2079        {
2080            notifyListener(MEDIA_INFO, MEDIA_INFO_BUFFERING_END, 0);
2081            break;
2082        }
2083
2084        case Source::kWhatCacheStats:
2085        {
2086            int32_t kbps;
2087            CHECK(msg->findInt32("bandwidth", &kbps));
2088
2089            notifyListener(MEDIA_INFO, MEDIA_INFO_NETWORK_BANDWIDTH, kbps);
2090            break;
2091        }
2092
2093        case Source::kWhatSubtitleData:
2094        {
2095            sp<ABuffer> buffer;
2096            CHECK(msg->findBuffer("buffer", &buffer));
2097
2098            sendSubtitleData(buffer, 0 /* baseIndex */);
2099            break;
2100        }
2101
2102        case Source::kWhatTimedMetaData:
2103        {
2104            sp<ABuffer> buffer;
2105            if (!msg->findBuffer("buffer", &buffer)) {
2106                notifyListener(MEDIA_INFO, MEDIA_INFO_METADATA_UPDATE, 0);
2107            } else {
2108                sendTimedMetaData(buffer);
2109            }
2110            break;
2111        }
2112
2113        case Source::kWhatTimedTextData:
2114        {
2115            int32_t generation;
2116            if (msg->findInt32("generation", &generation)
2117                    && generation != mTimedTextGeneration) {
2118                break;
2119            }
2120
2121            sp<ABuffer> buffer;
2122            CHECK(msg->findBuffer("buffer", &buffer));
2123
2124            sp<NuPlayerDriver> driver = mDriver.promote();
2125            if (driver == NULL) {
2126                break;
2127            }
2128
2129            int posMs;
2130            int64_t timeUs, posUs;
2131            driver->getCurrentPosition(&posMs);
2132            posUs = posMs * 1000;
2133            CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
2134
2135            if (posUs < timeUs) {
2136                if (!msg->findInt32("generation", &generation)) {
2137                    msg->setInt32("generation", mTimedTextGeneration);
2138                }
2139                msg->post(timeUs - posUs);
2140            } else {
2141                sendTimedTextData(buffer);
2142            }
2143            break;
2144        }
2145
2146        case Source::kWhatQueueDecoderShutdown:
2147        {
2148            int32_t audio, video;
2149            CHECK(msg->findInt32("audio", &audio));
2150            CHECK(msg->findInt32("video", &video));
2151
2152            sp<AMessage> reply;
2153            CHECK(msg->findMessage("reply", &reply));
2154
2155            queueDecoderShutdown(audio, video, reply);
2156            break;
2157        }
2158
2159        case Source::kWhatDrmNoLicense:
2160        {
2161            notifyListener(MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, ERROR_DRM_NO_LICENSE);
2162            break;
2163        }
2164
2165        default:
2166            TRESPASS();
2167    }
2168}
2169
2170void NuPlayer::onClosedCaptionNotify(const sp<AMessage> &msg) {
2171    int32_t what;
2172    CHECK(msg->findInt32("what", &what));
2173
2174    switch (what) {
2175        case NuPlayer::CCDecoder::kWhatClosedCaptionData:
2176        {
2177            sp<ABuffer> buffer;
2178            CHECK(msg->findBuffer("buffer", &buffer));
2179
2180            size_t inbandTracks = 0;
2181            if (mSource != NULL) {
2182                inbandTracks = mSource->getTrackCount();
2183            }
2184
2185            sendSubtitleData(buffer, inbandTracks);
2186            break;
2187        }
2188
2189        case NuPlayer::CCDecoder::kWhatTrackAdded:
2190        {
2191            notifyListener(MEDIA_INFO, MEDIA_INFO_METADATA_UPDATE, 0);
2192
2193            break;
2194        }
2195
2196        default:
2197            TRESPASS();
2198    }
2199
2200
2201}
2202
2203void NuPlayer::sendSubtitleData(const sp<ABuffer> &buffer, int32_t baseIndex) {
2204    int32_t trackIndex;
2205    int64_t timeUs, durationUs;
2206    CHECK(buffer->meta()->findInt32("trackIndex", &trackIndex));
2207    CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
2208    CHECK(buffer->meta()->findInt64("durationUs", &durationUs));
2209
2210    Parcel in;
2211    in.writeInt32(trackIndex + baseIndex);
2212    in.writeInt64(timeUs);
2213    in.writeInt64(durationUs);
2214    in.writeInt32(buffer->size());
2215    in.writeInt32(buffer->size());
2216    in.write(buffer->data(), buffer->size());
2217
2218    notifyListener(MEDIA_SUBTITLE_DATA, 0, 0, &in);
2219}
2220
2221void NuPlayer::sendTimedMetaData(const sp<ABuffer> &buffer) {
2222    int64_t timeUs;
2223    CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
2224
2225    Parcel in;
2226    in.writeInt64(timeUs);
2227    in.writeInt32(buffer->size());
2228    in.writeInt32(buffer->size());
2229    in.write(buffer->data(), buffer->size());
2230
2231    notifyListener(MEDIA_META_DATA, 0, 0, &in);
2232}
2233
2234void NuPlayer::sendTimedTextData(const sp<ABuffer> &buffer) {
2235    const void *data;
2236    size_t size = 0;
2237    int64_t timeUs;
2238    int32_t flag = TextDescriptions::LOCAL_DESCRIPTIONS;
2239
2240    AString mime;
2241    CHECK(buffer->meta()->findString("mime", &mime));
2242    CHECK(strcasecmp(mime.c_str(), MEDIA_MIMETYPE_TEXT_3GPP) == 0);
2243
2244    data = buffer->data();
2245    size = buffer->size();
2246
2247    Parcel parcel;
2248    if (size > 0) {
2249        CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
2250        flag |= TextDescriptions::IN_BAND_TEXT_3GPP;
2251        TextDescriptions::getParcelOfDescriptions(
2252                (const uint8_t *)data, size, flag, timeUs / 1000, &parcel);
2253    }
2254
2255    if ((parcel.dataSize() > 0)) {
2256        notifyListener(MEDIA_TIMED_TEXT, 0, 0, &parcel);
2257    } else {  // send an empty timed text
2258        notifyListener(MEDIA_TIMED_TEXT, 0, 0);
2259    }
2260}
2261////////////////////////////////////////////////////////////////////////////////
2262
2263sp<AMessage> NuPlayer::Source::getFormat(bool audio) {
2264    sp<MetaData> meta = getFormatMeta(audio);
2265
2266    if (meta == NULL) {
2267        return NULL;
2268    }
2269
2270    sp<AMessage> msg = new AMessage;
2271
2272    if(convertMetaDataToMessage(meta, &msg) == OK) {
2273        return msg;
2274    }
2275    return NULL;
2276}
2277
2278void NuPlayer::Source::notifyFlagsChanged(uint32_t flags) {
2279    sp<AMessage> notify = dupNotify();
2280    notify->setInt32("what", kWhatFlagsChanged);
2281    notify->setInt32("flags", flags);
2282    notify->post();
2283}
2284
2285void NuPlayer::Source::notifyVideoSizeChanged(const sp<AMessage> &format) {
2286    sp<AMessage> notify = dupNotify();
2287    notify->setInt32("what", kWhatVideoSizeChanged);
2288    notify->setMessage("format", format);
2289    notify->post();
2290}
2291
2292void NuPlayer::Source::notifyPrepared(status_t err) {
2293    sp<AMessage> notify = dupNotify();
2294    notify->setInt32("what", kWhatPrepared);
2295    notify->setInt32("err", err);
2296    notify->post();
2297}
2298
2299void NuPlayer::Source::notifyInstantiateSecureDecoders(const sp<AMessage> &reply) {
2300    sp<AMessage> notify = dupNotify();
2301    notify->setInt32("what", kWhatInstantiateSecureDecoders);
2302    notify->setMessage("reply", reply);
2303    notify->post();
2304}
2305
2306void NuPlayer::Source::onMessageReceived(const sp<AMessage> & /* msg */) {
2307    TRESPASS();
2308}
2309
2310}  // namespace android
2311