NuPlayer.cpp revision d7988b1a7b32e39e671f7d4e2b2d8027a1f99639 
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 "NuPlayerDecoder.h"
25#include "NuPlayerDecoderPassThrough.h"
26#include "NuPlayerDriver.h"
27#include "NuPlayerRenderer.h"
28#include "NuPlayerSource.h"
29#include "RTSPSource.h"
30#include "StreamingSource.h"
31#include "GenericSource.h"
32#include "TextDescriptions.h"
33
34#include "ATSParser.h"
35
36#include <media/stagefright/foundation/hexdump.h>
37#include <media/stagefright/foundation/ABuffer.h>
38#include <media/stagefright/foundation/ADebug.h>
39#include <media/stagefright/foundation/AMessage.h>
40#include <media/stagefright/MediaBuffer.h>
41#include <media/stagefright/MediaDefs.h>
42#include <media/stagefright/MediaErrors.h>
43#include <media/stagefright/MetaData.h>
44#include <gui/IGraphicBufferProducer.h>
45
46#include "avc_utils.h"
47
48#include "ESDS.h"
49#include <media/stagefright/Utils.h>
50
51namespace android {
52
53// TODO optimize buffer size for power consumption
54// The offload read buffer size is 32 KB but 24 KB uses less power.
55const size_t NuPlayer::kAggregateBufferSizeBytes = 24 * 1024;
56
57struct NuPlayer::Action : public RefBase {
58    Action() {}
59
60    virtual void execute(NuPlayer *player) = 0;
61
62private:
63    DISALLOW_EVIL_CONSTRUCTORS(Action);
64};
65
66struct NuPlayer::SeekAction : public Action {
67    SeekAction(int64_t seekTimeUs, bool needNotify)
68        : mSeekTimeUs(seekTimeUs),
69          mNeedNotify(needNotify) {
70    }
71
72    virtual void execute(NuPlayer *player) {
73        player->performSeek(mSeekTimeUs, mNeedNotify);
74    }
75
76private:
77    int64_t mSeekTimeUs;
78    bool mNeedNotify;
79
80    DISALLOW_EVIL_CONSTRUCTORS(SeekAction);
81};
82
83struct NuPlayer::SetSurfaceAction : public Action {
84    SetSurfaceAction(const sp<NativeWindowWrapper> &wrapper)
85        : mWrapper(wrapper) {
86    }
87
88    virtual void execute(NuPlayer *player) {
89        player->performSetSurface(mWrapper);
90    }
91
92private:
93    sp<NativeWindowWrapper> mWrapper;
94
95    DISALLOW_EVIL_CONSTRUCTORS(SetSurfaceAction);
96};
97
98struct NuPlayer::ShutdownDecoderAction : public Action {
99    ShutdownDecoderAction(bool audio, bool video)
100        : mAudio(audio),
101          mVideo(video) {
102    }
103
104    virtual void execute(NuPlayer *player) {
105        player->performDecoderShutdown(mAudio, mVideo);
106    }
107
108private:
109    bool mAudio;
110    bool mVideo;
111
112    DISALLOW_EVIL_CONSTRUCTORS(ShutdownDecoderAction);
113};
114
115struct NuPlayer::PostMessageAction : public Action {
116    PostMessageAction(const sp<AMessage> &msg)
117        : mMessage(msg) {
118    }
119
120    virtual void execute(NuPlayer *) {
121        mMessage->post();
122    }
123
124private:
125    sp<AMessage> mMessage;
126
127    DISALLOW_EVIL_CONSTRUCTORS(PostMessageAction);
128};
129
130// Use this if there's no state necessary to save in order to execute
131// the action.
132struct NuPlayer::SimpleAction : public Action {
133    typedef void (NuPlayer::*ActionFunc)();
134
135    SimpleAction(ActionFunc func)
136        : mFunc(func) {
137    }
138
139    virtual void execute(NuPlayer *player) {
140        (player->*mFunc)();
141    }
142
143private:
144    ActionFunc mFunc;
145
146    DISALLOW_EVIL_CONSTRUCTORS(SimpleAction);
147};
148
149////////////////////////////////////////////////////////////////////////////////
150
151NuPlayer::NuPlayer()
152    : mUIDValid(false),
153      mSourceFlags(0),
154      mCurrentPositionUs(0),
155      mVideoIsAVC(false),
156      mOffloadAudio(false),
157      mCurrentOffloadInfo(AUDIO_INFO_INITIALIZER),
158      mAudioDecoderGeneration(0),
159      mVideoDecoderGeneration(0),
160      mRendererGeneration(0),
161      mAudioEOS(false),
162      mVideoEOS(false),
163      mScanSourcesPending(false),
164      mScanSourcesGeneration(0),
165      mPollDurationGeneration(0),
166      mTimedTextGeneration(0),
167      mTimeDiscontinuityPending(false),
168      mFlushingAudio(NONE),
169      mFlushingVideo(NONE),
170      mSkipRenderingAudioUntilMediaTimeUs(-1ll),
171      mSkipRenderingVideoUntilMediaTimeUs(-1ll),
172      mVideoLateByUs(0ll),
173      mNumFramesTotal(0ll),
174      mNumFramesDropped(0ll),
175      mVideoScalingMode(NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW),
176      mStarted(false) {
177}
178
179NuPlayer::~NuPlayer() {
180}
181
182void NuPlayer::setUID(uid_t uid) {
183    mUIDValid = true;
184    mUID = uid;
185}
186
187void NuPlayer::setDriver(const wp<NuPlayerDriver> &driver) {
188    mDriver = driver;
189}
190
191void NuPlayer::setDataSourceAsync(const sp<IStreamSource> &source) {
192    sp<AMessage> msg = new AMessage(kWhatSetDataSource, id());
193
194    sp<AMessage> notify = new AMessage(kWhatSourceNotify, id());
195
196    msg->setObject("source", new StreamingSource(notify, source));
197    msg->post();
198}
199
200static bool IsHTTPLiveURL(const char *url) {
201    if (!strncasecmp("http://", url, 7)
202            || !strncasecmp("https://", url, 8)
203            || !strncasecmp("file://", url, 7)) {
204        size_t len = strlen(url);
205        if (len >= 5 && !strcasecmp(".m3u8", &url[len - 5])) {
206            return true;
207        }
208
209        if (strstr(url,"m3u8")) {
210            return true;
211        }
212    }
213
214    return false;
215}
216
217void NuPlayer::setDataSourceAsync(
218        const sp<IMediaHTTPService> &httpService,
219        const char *url,
220        const KeyedVector<String8, String8> *headers) {
221
222    sp<AMessage> msg = new AMessage(kWhatSetDataSource, id());
223    size_t len = strlen(url);
224
225    sp<AMessage> notify = new AMessage(kWhatSourceNotify, id());
226
227    sp<Source> source;
228    if (IsHTTPLiveURL(url)) {
229        source = new HTTPLiveSource(notify, httpService, url, headers);
230    } else if (!strncasecmp(url, "rtsp://", 7)) {
231        source = new RTSPSource(
232                notify, httpService, url, headers, mUIDValid, mUID);
233    } else if ((!strncasecmp(url, "http://", 7)
234                || !strncasecmp(url, "https://", 8))
235                    && ((len >= 4 && !strcasecmp(".sdp", &url[len - 4]))
236                    || strstr(url, ".sdp?"))) {
237        source = new RTSPSource(
238                notify, httpService, url, headers, mUIDValid, mUID, true);
239    } else {
240        sp<GenericSource> genericSource =
241                new GenericSource(notify, mUIDValid, mUID);
242        // Don't set FLAG_SECURE on mSourceFlags here for widevine.
243        // The correct flags will be updated in Source::kWhatFlagsChanged
244        // handler when  GenericSource is prepared.
245
246        status_t err = genericSource->setDataSource(httpService, url, headers);
247
248        if (err == OK) {
249            source = genericSource;
250        } else {
251            ALOGE("Failed to set data source!");
252        }
253    }
254    msg->setObject("source", source);
255    msg->post();
256}
257
258void NuPlayer::setDataSourceAsync(int fd, int64_t offset, int64_t length) {
259    sp<AMessage> msg = new AMessage(kWhatSetDataSource, id());
260
261    sp<AMessage> notify = new AMessage(kWhatSourceNotify, id());
262
263    sp<GenericSource> source =
264            new GenericSource(notify, mUIDValid, mUID);
265
266    status_t err = source->setDataSource(fd, offset, length);
267
268    if (err != OK) {
269        ALOGE("Failed to set data source!");
270        source = NULL;
271    }
272
273    msg->setObject("source", source);
274    msg->post();
275}
276
277void NuPlayer::prepareAsync() {
278    (new AMessage(kWhatPrepare, id()))->post();
279}
280
281void NuPlayer::setVideoSurfaceTextureAsync(
282        const sp<IGraphicBufferProducer> &bufferProducer) {
283    sp<AMessage> msg = new AMessage(kWhatSetVideoNativeWindow, id());
284
285    if (bufferProducer == NULL) {
286        msg->setObject("native-window", NULL);
287    } else {
288        msg->setObject(
289                "native-window",
290                new NativeWindowWrapper(
291                    new Surface(bufferProducer, true /* controlledByApp */)));
292    }
293
294    msg->post();
295}
296
297void NuPlayer::setAudioSink(const sp<MediaPlayerBase::AudioSink> &sink) {
298    sp<AMessage> msg = new AMessage(kWhatSetAudioSink, id());
299    msg->setObject("sink", sink);
300    msg->post();
301}
302
303void NuPlayer::start() {
304    (new AMessage(kWhatStart, id()))->post();
305}
306
307void NuPlayer::pause() {
308    (new AMessage(kWhatPause, id()))->post();
309}
310
311void NuPlayer::resume() {
312    (new AMessage(kWhatResume, id()))->post();
313}
314
315void NuPlayer::resetAsync() {
316    if (mSource != NULL) {
317        // During a reset, the data source might be unresponsive already, we need to
318        // disconnect explicitly so that reads exit promptly.
319        // We can't queue the disconnect request to the looper, as it might be
320        // queued behind a stuck read and never gets processed.
321        // Doing a disconnect outside the looper to allows the pending reads to exit
322        // (either successfully or with error).
323        mSource->disconnect();
324    }
325
326    (new AMessage(kWhatReset, id()))->post();
327}
328
329void NuPlayer::seekToAsync(int64_t seekTimeUs, bool needNotify) {
330    sp<AMessage> msg = new AMessage(kWhatSeek, id());
331    msg->setInt64("seekTimeUs", seekTimeUs);
332    msg->setInt32("needNotify", needNotify);
333    msg->post();
334}
335
336// static
337bool NuPlayer::IsFlushingState(FlushStatus state, bool *needShutdown) {
338    switch (state) {
339        case FLUSHING_DECODER:
340            if (needShutdown != NULL) {
341                *needShutdown = false;
342            }
343            return true;
344
345        case FLUSHING_DECODER_SHUTDOWN:
346            if (needShutdown != NULL) {
347                *needShutdown = true;
348            }
349            return true;
350
351        default:
352            return false;
353    }
354}
355
356void NuPlayer::writeTrackInfo(
357        Parcel* reply, const sp<AMessage> format) const {
358    int32_t trackType;
359    CHECK(format->findInt32("type", &trackType));
360
361    AString lang;
362    CHECK(format->findString("language", &lang));
363
364    reply->writeInt32(2); // write something non-zero
365    reply->writeInt32(trackType);
366    reply->writeString16(String16(lang.c_str()));
367
368    if (trackType == MEDIA_TRACK_TYPE_SUBTITLE) {
369        AString mime;
370        CHECK(format->findString("mime", &mime));
371
372        int32_t isAuto, isDefault, isForced;
373        CHECK(format->findInt32("auto", &isAuto));
374        CHECK(format->findInt32("default", &isDefault));
375        CHECK(format->findInt32("forced", &isForced));
376
377        reply->writeString16(String16(mime.c_str()));
378        reply->writeInt32(isAuto);
379        reply->writeInt32(isDefault);
380        reply->writeInt32(isForced);
381    }
382}
383
384void NuPlayer::onMessageReceived(const sp<AMessage> &msg) {
385    switch (msg->what()) {
386        case kWhatSetDataSource:
387        {
388            ALOGV("kWhatSetDataSource");
389
390            CHECK(mSource == NULL);
391
392            status_t err = OK;
393            sp<RefBase> obj;
394            CHECK(msg->findObject("source", &obj));
395            if (obj != NULL) {
396                mSource = static_cast<Source *>(obj.get());
397            } else {
398                err = UNKNOWN_ERROR;
399            }
400
401            CHECK(mDriver != NULL);
402            sp<NuPlayerDriver> driver = mDriver.promote();
403            if (driver != NULL) {
404                driver->notifySetDataSourceCompleted(err);
405            }
406            break;
407        }
408
409        case kWhatPrepare:
410        {
411            mSource->prepareAsync();
412            break;
413        }
414
415        case kWhatGetTrackInfo:
416        {
417            uint32_t replyID;
418            CHECK(msg->senderAwaitsResponse(&replyID));
419
420            Parcel* reply;
421            CHECK(msg->findPointer("reply", (void**)&reply));
422
423            size_t inbandTracks = 0;
424            if (mSource != NULL) {
425                inbandTracks = mSource->getTrackCount();
426            }
427
428            size_t ccTracks = 0;
429            if (mCCDecoder != NULL) {
430                ccTracks = mCCDecoder->getTrackCount();
431            }
432
433            // total track count
434            reply->writeInt32(inbandTracks + ccTracks);
435
436            // write inband tracks
437            for (size_t i = 0; i < inbandTracks; ++i) {
438                writeTrackInfo(reply, mSource->getTrackInfo(i));
439            }
440
441            // write CC track
442            for (size_t i = 0; i < ccTracks; ++i) {
443                writeTrackInfo(reply, mCCDecoder->getTrackInfo(i));
444            }
445
446            sp<AMessage> response = new AMessage;
447            response->postReply(replyID);
448            break;
449        }
450
451        case kWhatGetSelectedTrack:
452        {
453            status_t err = INVALID_OPERATION;
454            if (mSource != NULL) {
455                err = OK;
456
457                int32_t type32;
458                CHECK(msg->findInt32("type", (int32_t*)&type32));
459                media_track_type type = (media_track_type)type32;
460                ssize_t selectedTrack = mSource->getSelectedTrack(type);
461
462                Parcel* reply;
463                CHECK(msg->findPointer("reply", (void**)&reply));
464                reply->writeInt32(selectedTrack);
465            }
466
467            sp<AMessage> response = new AMessage;
468            response->setInt32("err", err);
469
470            uint32_t replyID;
471            CHECK(msg->senderAwaitsResponse(&replyID));
472            response->postReply(replyID);
473            break;
474        }
475
476        case kWhatSelectTrack:
477        {
478            uint32_t replyID;
479            CHECK(msg->senderAwaitsResponse(&replyID));
480
481            size_t trackIndex;
482            int32_t select;
483            CHECK(msg->findSize("trackIndex", &trackIndex));
484            CHECK(msg->findInt32("select", &select));
485
486            status_t err = INVALID_OPERATION;
487
488            size_t inbandTracks = 0;
489            if (mSource != NULL) {
490                inbandTracks = mSource->getTrackCount();
491            }
492            size_t ccTracks = 0;
493            if (mCCDecoder != NULL) {
494                ccTracks = mCCDecoder->getTrackCount();
495            }
496
497            if (trackIndex < inbandTracks) {
498                err = mSource->selectTrack(trackIndex, select);
499
500                if (!select && err == OK) {
501                    int32_t type;
502                    sp<AMessage> info = mSource->getTrackInfo(trackIndex);
503                    if (info != NULL
504                            && info->findInt32("type", &type)
505                            && type == MEDIA_TRACK_TYPE_TIMEDTEXT) {
506                        ++mTimedTextGeneration;
507                    }
508                }
509            } else {
510                trackIndex -= inbandTracks;
511
512                if (trackIndex < ccTracks) {
513                    err = mCCDecoder->selectTrack(trackIndex, select);
514                }
515            }
516
517            sp<AMessage> response = new AMessage;
518            response->setInt32("err", err);
519
520            response->postReply(replyID);
521            break;
522        }
523
524        case kWhatPollDuration:
525        {
526            int32_t generation;
527            CHECK(msg->findInt32("generation", &generation));
528
529            if (generation != mPollDurationGeneration) {
530                // stale
531                break;
532            }
533
534            int64_t durationUs;
535            if (mDriver != NULL && mSource->getDuration(&durationUs) == OK) {
536                sp<NuPlayerDriver> driver = mDriver.promote();
537                if (driver != NULL) {
538                    driver->notifyDuration(durationUs);
539                }
540            }
541
542            msg->post(1000000ll);  // poll again in a second.
543            break;
544        }
545
546        case kWhatSetVideoNativeWindow:
547        {
548            ALOGV("kWhatSetVideoNativeWindow");
549
550            mDeferredActions.push_back(
551                    new ShutdownDecoderAction(
552                        false /* audio */, true /* video */));
553
554            sp<RefBase> obj;
555            CHECK(msg->findObject("native-window", &obj));
556
557            mDeferredActions.push_back(
558                    new SetSurfaceAction(
559                        static_cast<NativeWindowWrapper *>(obj.get())));
560
561            if (obj != NULL) {
562                if (mStarted && mSource->getFormat(false /* audio */) != NULL) {
563                    // Issue a seek to refresh the video screen only if started otherwise
564                    // the extractor may not yet be started and will assert.
565                    // If the video decoder is not set (perhaps audio only in this case)
566                    // do not perform a seek as it is not needed.
567                    mDeferredActions.push_back(
568                            new SeekAction(mCurrentPositionUs, false /* needNotify */));
569                }
570
571                // If there is a new surface texture, instantiate decoders
572                // again if possible.
573                mDeferredActions.push_back(
574                        new SimpleAction(&NuPlayer::performScanSources));
575            }
576
577            processDeferredActions();
578            break;
579        }
580
581        case kWhatSetAudioSink:
582        {
583            ALOGV("kWhatSetAudioSink");
584
585            sp<RefBase> obj;
586            CHECK(msg->findObject("sink", &obj));
587
588            mAudioSink = static_cast<MediaPlayerBase::AudioSink *>(obj.get());
589            break;
590        }
591
592        case kWhatStart:
593        {
594            ALOGV("kWhatStart");
595
596            mVideoIsAVC = false;
597            mOffloadAudio = false;
598            mAudioEOS = false;
599            mVideoEOS = false;
600            mSkipRenderingAudioUntilMediaTimeUs = -1;
601            mSkipRenderingVideoUntilMediaTimeUs = -1;
602            mVideoLateByUs = 0;
603            mNumFramesTotal = 0;
604            mNumFramesDropped = 0;
605            mStarted = true;
606
607            /* instantiate decoders now for secure playback */
608            if (mSourceFlags & Source::FLAG_SECURE) {
609                if (mNativeWindow != NULL) {
610                    instantiateDecoder(false, &mVideoDecoder);
611                }
612
613                if (mAudioSink != NULL) {
614                    instantiateDecoder(true, &mAudioDecoder);
615                }
616            }
617
618            mSource->start();
619
620            uint32_t flags = 0;
621
622            if (mSource->isRealTime()) {
623                flags |= Renderer::FLAG_REAL_TIME;
624            }
625
626            sp<MetaData> audioMeta = mSource->getFormatMeta(true /* audio */);
627            audio_stream_type_t streamType = AUDIO_STREAM_MUSIC;
628            if (mAudioSink != NULL) {
629                streamType = mAudioSink->getAudioStreamType();
630            }
631
632            sp<AMessage> videoFormat = mSource->getFormat(false /* audio */);
633
634            mOffloadAudio =
635                canOffloadStream(audioMeta, (videoFormat != NULL),
636                                 true /* is_streaming */, streamType);
637            if (mOffloadAudio) {
638                flags |= Renderer::FLAG_OFFLOAD_AUDIO;
639            }
640
641            sp<AMessage> notify = new AMessage(kWhatRendererNotify, id());
642            ++mRendererGeneration;
643            notify->setInt32("generation", mRendererGeneration);
644            mRenderer = new Renderer(mAudioSink, notify, flags);
645
646            mRendererLooper = new ALooper;
647            mRendererLooper->setName("NuPlayerRenderer");
648            mRendererLooper->start(false, false, ANDROID_PRIORITY_AUDIO);
649            mRendererLooper->registerHandler(mRenderer);
650
651            sp<MetaData> meta = getFileMeta();
652            int32_t rate;
653            if (meta != NULL
654                    && meta->findInt32(kKeyFrameRate, &rate) && rate > 0) {
655                mRenderer->setVideoFrameRate(rate);
656            }
657
658            postScanSources();
659            break;
660        }
661
662        case kWhatScanSources:
663        {
664            int32_t generation;
665            CHECK(msg->findInt32("generation", &generation));
666            if (generation != mScanSourcesGeneration) {
667                // Drop obsolete msg.
668                break;
669            }
670
671            mScanSourcesPending = false;
672
673            ALOGV("scanning sources haveAudio=%d, haveVideo=%d",
674                 mAudioDecoder != NULL, mVideoDecoder != NULL);
675
676            bool mHadAnySourcesBefore =
677                (mAudioDecoder != NULL) || (mVideoDecoder != NULL);
678
679            // initialize video before audio because successful initialization of
680            // video may change deep buffer mode of audio.
681            if (mNativeWindow != NULL) {
682                instantiateDecoder(false, &mVideoDecoder);
683            }
684
685            if (mAudioSink != NULL) {
686                if (mOffloadAudio) {
687                    // open audio sink early under offload mode.
688                    sp<AMessage> format = mSource->getFormat(true /*audio*/);
689                    openAudioSink(format, true /*offloadOnly*/);
690                }
691                instantiateDecoder(true, &mAudioDecoder);
692            }
693
694            if (!mHadAnySourcesBefore
695                    && (mAudioDecoder != NULL || mVideoDecoder != NULL)) {
696                // This is the first time we've found anything playable.
697
698                if (mSourceFlags & Source::FLAG_DYNAMIC_DURATION) {
699                    schedulePollDuration();
700                }
701            }
702
703            status_t err;
704            if ((err = mSource->feedMoreTSData()) != OK) {
705                if (mAudioDecoder == NULL && mVideoDecoder == NULL) {
706                    // We're not currently decoding anything (no audio or
707                    // video tracks found) and we just ran out of input data.
708
709                    if (err == ERROR_END_OF_STREAM) {
710                        notifyListener(MEDIA_PLAYBACK_COMPLETE, 0, 0);
711                    } else {
712                        notifyListener(MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, err);
713                    }
714                }
715                break;
716            }
717
718            if ((mAudioDecoder == NULL && mAudioSink != NULL)
719                    || (mVideoDecoder == NULL && mNativeWindow != NULL)) {
720                msg->post(100000ll);
721                mScanSourcesPending = true;
722            }
723            break;
724        }
725
726        case kWhatVideoNotify:
727        case kWhatAudioNotify:
728        {
729            bool audio = msg->what() == kWhatAudioNotify;
730
731            int32_t currentDecoderGeneration =
732                (audio? mAudioDecoderGeneration : mVideoDecoderGeneration);
733            int32_t requesterGeneration = currentDecoderGeneration - 1;
734            CHECK(msg->findInt32("generation", &requesterGeneration));
735
736            if (requesterGeneration != currentDecoderGeneration) {
737                ALOGV("got message from old %s decoder, generation(%d:%d)",
738                        audio ? "audio" : "video", requesterGeneration,
739                        currentDecoderGeneration);
740                sp<AMessage> reply;
741                if (!(msg->findMessage("reply", &reply))) {
742                    return;
743                }
744
745                reply->setInt32("err", INFO_DISCONTINUITY);
746                reply->post();
747                return;
748            }
749
750            int32_t what;
751            CHECK(msg->findInt32("what", &what));
752
753            if (what == Decoder::kWhatFillThisBuffer) {
754                status_t err = feedDecoderInputData(
755                        audio, msg);
756
757                if (err == -EWOULDBLOCK) {
758                    if (mSource->feedMoreTSData() == OK) {
759                        msg->post(10 * 1000ll);
760                    }
761                }
762            } else if (what == Decoder::kWhatEOS) {
763                int32_t err;
764                CHECK(msg->findInt32("err", &err));
765
766                if (err == ERROR_END_OF_STREAM) {
767                    ALOGV("got %s decoder EOS", audio ? "audio" : "video");
768                } else {
769                    ALOGV("got %s decoder EOS w/ error %d",
770                         audio ? "audio" : "video",
771                         err);
772                }
773
774                mRenderer->queueEOS(audio, err);
775            } else if (what == Decoder::kWhatFlushCompleted) {
776                bool needShutdown;
777
778                if (audio) {
779                    CHECK(IsFlushingState(mFlushingAudio, &needShutdown));
780                    mFlushingAudio = FLUSHED;
781                } else {
782                    CHECK(IsFlushingState(mFlushingVideo, &needShutdown));
783                    mFlushingVideo = FLUSHED;
784
785                    mVideoLateByUs = 0;
786                }
787
788                ALOGV("decoder %s flush completed", audio ? "audio" : "video");
789
790                if (needShutdown) {
791                    ALOGV("initiating %s decoder shutdown",
792                         audio ? "audio" : "video");
793
794                    // Widevine source reads must stop before releasing the video decoder.
795                    if (!audio && mSource != NULL && mSourceFlags & Source::FLAG_SECURE) {
796                        mSource->stop();
797                    }
798
799                    getDecoder(audio)->initiateShutdown();
800
801                    if (audio) {
802                        mFlushingAudio = SHUTTING_DOWN_DECODER;
803                    } else {
804                        mFlushingVideo = SHUTTING_DOWN_DECODER;
805                    }
806                }
807
808                finishFlushIfPossible();
809            } else if (what == Decoder::kWhatOutputFormatChanged) {
810                sp<AMessage> format;
811                CHECK(msg->findMessage("format", &format));
812
813                if (audio) {
814                    openAudioSink(format, false /*offloadOnly*/);
815                } else {
816                    // video
817                    sp<AMessage> inputFormat =
818                            mSource->getFormat(false /* audio */);
819
820                    updateVideoSize(inputFormat, format);
821                }
822            } else if (what == Decoder::kWhatShutdownCompleted) {
823                ALOGV("%s shutdown completed", audio ? "audio" : "video");
824                if (audio) {
825                    mAudioDecoder.clear();
826                    ++mAudioDecoderGeneration;
827
828                    CHECK_EQ((int)mFlushingAudio, (int)SHUTTING_DOWN_DECODER);
829                    mFlushingAudio = SHUT_DOWN;
830                } else {
831                    mVideoDecoder.clear();
832                    ++mVideoDecoderGeneration;
833
834                    CHECK_EQ((int)mFlushingVideo, (int)SHUTTING_DOWN_DECODER);
835                    mFlushingVideo = SHUT_DOWN;
836                }
837
838                finishFlushIfPossible();
839            } else if (what == Decoder::kWhatError) {
840                status_t err;
841                if (!msg->findInt32("err", &err) || err == OK) {
842                    err = UNKNOWN_ERROR;
843                }
844
845                // Decoder errors can be due to Source (e.g. from streaming),
846                // or from decoding corrupted bitstreams, or from other decoder
847                // MediaCodec operations (e.g. from an ongoing reset or seek).
848                //
849                // We try to gracefully shut down the affected decoder if possible,
850                // rather than trying to force the shutdown with something
851                // similar to performReset(). This method can lead to a hang
852                // if MediaCodec functions block after an error, but they should
853                // typically return INVALID_OPERATION instead of blocking.
854
855                FlushStatus *flushing = audio ? &mFlushingAudio : &mFlushingVideo;
856                ALOGE("received error(%#x) from %s decoder, flushing(%d), now shutting down",
857                        err, audio ? "audio" : "video", *flushing);
858
859                switch (*flushing) {
860                    case NONE:
861                        mDeferredActions.push_back(
862                                new ShutdownDecoderAction(audio, !audio /* video */));
863                        processDeferredActions();
864                        break;
865                    case FLUSHING_DECODER:
866                        *flushing = FLUSHING_DECODER_SHUTDOWN; // initiate shutdown after flush.
867                        break; // Wait for flush to complete.
868                    case FLUSHING_DECODER_SHUTDOWN:
869                        break; // Wait for flush to complete.
870                    case SHUTTING_DOWN_DECODER:
871                        break; // Wait for shutdown to complete.
872                    case FLUSHED:
873                        // Widevine source reads must stop before releasing the video decoder.
874                        if (!audio && mSource != NULL && mSourceFlags & Source::FLAG_SECURE) {
875                            mSource->stop();
876                        }
877                        getDecoder(audio)->initiateShutdown(); // In the middle of a seek.
878                        *flushing = SHUTTING_DOWN_DECODER;     // Shut down.
879                        break;
880                    case SHUT_DOWN:
881                        finishFlushIfPossible();  // Should not occur.
882                        break;                    // Finish anyways.
883                }
884                notifyListener(MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, err);
885            } else if (what == Decoder::kWhatDrainThisBuffer) {
886                renderBuffer(audio, msg);
887            } else {
888                ALOGV("Unhandled decoder notification %d '%c%c%c%c'.",
889                      what,
890                      what >> 24,
891                      (what >> 16) & 0xff,
892                      (what >> 8) & 0xff,
893                      what & 0xff);
894            }
895
896            break;
897        }
898
899        case kWhatRendererNotify:
900        {
901            int32_t requesterGeneration = mRendererGeneration - 1;
902            CHECK(msg->findInt32("generation", &requesterGeneration));
903            if (requesterGeneration != mRendererGeneration) {
904                ALOGV("got message from old renderer, generation(%d:%d)",
905                        requesterGeneration, mRendererGeneration);
906                return;
907            }
908
909            int32_t what;
910            CHECK(msg->findInt32("what", &what));
911
912            if (what == Renderer::kWhatEOS) {
913                int32_t audio;
914                CHECK(msg->findInt32("audio", &audio));
915
916                int32_t finalResult;
917                CHECK(msg->findInt32("finalResult", &finalResult));
918
919                if (audio) {
920                    mAudioEOS = true;
921                } else {
922                    mVideoEOS = true;
923                }
924
925                if (finalResult == ERROR_END_OF_STREAM) {
926                    ALOGV("reached %s EOS", audio ? "audio" : "video");
927                } else {
928                    ALOGE("%s track encountered an error (%d)",
929                         audio ? "audio" : "video", finalResult);
930
931                    notifyListener(
932                            MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, finalResult);
933                }
934
935                if ((mAudioEOS || mAudioDecoder == NULL)
936                        && (mVideoEOS || mVideoDecoder == NULL)) {
937                    notifyListener(MEDIA_PLAYBACK_COMPLETE, 0, 0);
938                }
939            } else if (what == Renderer::kWhatPosition) {
940                int64_t positionUs;
941                CHECK(msg->findInt64("positionUs", &positionUs));
942                mCurrentPositionUs = positionUs;
943
944                CHECK(msg->findInt64("videoLateByUs", &mVideoLateByUs));
945
946                if (mDriver != NULL) {
947                    sp<NuPlayerDriver> driver = mDriver.promote();
948                    if (driver != NULL) {
949                        driver->notifyPosition(positionUs);
950
951                        driver->notifyFrameStats(
952                                mNumFramesTotal, mNumFramesDropped);
953                    }
954                }
955            } else if (what == Renderer::kWhatFlushComplete) {
956                int32_t audio;
957                CHECK(msg->findInt32("audio", &audio));
958
959                ALOGV("renderer %s flush completed.", audio ? "audio" : "video");
960            } else if (what == Renderer::kWhatVideoRenderingStart) {
961                notifyListener(MEDIA_INFO, MEDIA_INFO_RENDERING_START, 0);
962            } else if (what == Renderer::kWhatMediaRenderingStart) {
963                ALOGV("media rendering started");
964                notifyListener(MEDIA_STARTED, 0, 0);
965            } else if (what == Renderer::kWhatAudioOffloadTearDown) {
966                ALOGV("Tear down audio offload, fall back to s/w path");
967                int64_t positionUs;
968                CHECK(msg->findInt64("positionUs", &positionUs));
969                int32_t reason;
970                CHECK(msg->findInt32("reason", &reason));
971                closeAudioSink();
972                mAudioDecoder.clear();
973                ++mAudioDecoderGeneration;
974                mRenderer->flush(true /* audio */);
975                if (mVideoDecoder != NULL) {
976                    mRenderer->flush(false /* audio */);
977                }
978                mRenderer->signalDisableOffloadAudio();
979                mOffloadAudio = false;
980
981                performSeek(positionUs, false /* needNotify */);
982                if (reason == Renderer::kDueToError) {
983                    instantiateDecoder(true /* audio */, &mAudioDecoder);
984                }
985            }
986            break;
987        }
988
989        case kWhatMoreDataQueued:
990        {
991            break;
992        }
993
994        case kWhatReset:
995        {
996            ALOGV("kWhatReset");
997
998            mDeferredActions.push_back(
999                    new ShutdownDecoderAction(
1000                        true /* audio */, true /* video */));
1001
1002            mDeferredActions.push_back(
1003                    new SimpleAction(&NuPlayer::performReset));
1004
1005            processDeferredActions();
1006            break;
1007        }
1008
1009        case kWhatSeek:
1010        {
1011            int64_t seekTimeUs;
1012            int32_t needNotify;
1013            CHECK(msg->findInt64("seekTimeUs", &seekTimeUs));
1014            CHECK(msg->findInt32("needNotify", &needNotify));
1015
1016            ALOGV("kWhatSeek seekTimeUs=%lld us, needNotify=%d",
1017                    seekTimeUs, needNotify);
1018
1019            mDeferredActions.push_back(
1020                    new SimpleAction(&NuPlayer::performDecoderFlush));
1021
1022            mDeferredActions.push_back(
1023                    new SeekAction(seekTimeUs, needNotify));
1024
1025            processDeferredActions();
1026            break;
1027        }
1028
1029        case kWhatPause:
1030        {
1031            if (mSource != NULL) {
1032                mSource->pause();
1033            } else {
1034                ALOGW("pause called when source is gone or not set");
1035            }
1036            if (mRenderer != NULL) {
1037                mRenderer->pause();
1038            } else {
1039                ALOGW("pause called when renderer is gone or not set");
1040            }
1041            break;
1042        }
1043
1044        case kWhatResume:
1045        {
1046            if (mSource != NULL) {
1047                mSource->resume();
1048            } else {
1049                ALOGW("resume called when source is gone or not set");
1050            }
1051            // |mAudioDecoder| may have been released due to the pause timeout, so re-create it if
1052            // needed.
1053            if (audioDecoderStillNeeded() && mAudioDecoder == NULL) {
1054                instantiateDecoder(true /* audio */, &mAudioDecoder);
1055            }
1056            if (mRenderer != NULL) {
1057                mRenderer->resume();
1058            } else {
1059                ALOGW("resume called when renderer is gone or not set");
1060            }
1061            break;
1062        }
1063
1064        case kWhatSourceNotify:
1065        {
1066            onSourceNotify(msg);
1067            break;
1068        }
1069
1070        case kWhatClosedCaptionNotify:
1071        {
1072            onClosedCaptionNotify(msg);
1073            break;
1074        }
1075
1076        default:
1077            TRESPASS();
1078            break;
1079    }
1080}
1081
1082bool NuPlayer::audioDecoderStillNeeded() {
1083    // Audio decoder is no longer needed if it's in shut/shutting down status.
1084    return ((mFlushingAudio != SHUT_DOWN) && (mFlushingAudio != SHUTTING_DOWN_DECODER));
1085}
1086
1087void NuPlayer::finishFlushIfPossible() {
1088    if (mFlushingAudio != NONE && mFlushingAudio != FLUSHED
1089            && mFlushingAudio != SHUT_DOWN) {
1090        return;
1091    }
1092
1093    if (mFlushingVideo != NONE && mFlushingVideo != FLUSHED
1094            && mFlushingVideo != SHUT_DOWN) {
1095        return;
1096    }
1097
1098    ALOGV("both audio and video are flushed now.");
1099
1100    mPendingAudioAccessUnit.clear();
1101    mAggregateBuffer.clear();
1102
1103    if (mTimeDiscontinuityPending) {
1104        mRenderer->signalTimeDiscontinuity();
1105        mTimeDiscontinuityPending = false;
1106    }
1107
1108    if (mAudioDecoder != NULL && mFlushingAudio == FLUSHED) {
1109        mAudioDecoder->signalResume();
1110    }
1111
1112    if (mVideoDecoder != NULL && mFlushingVideo == FLUSHED) {
1113        mVideoDecoder->signalResume();
1114    }
1115
1116    mFlushingAudio = NONE;
1117    mFlushingVideo = NONE;
1118
1119    processDeferredActions();
1120}
1121
1122void NuPlayer::postScanSources() {
1123    if (mScanSourcesPending) {
1124        return;
1125    }
1126
1127    sp<AMessage> msg = new AMessage(kWhatScanSources, id());
1128    msg->setInt32("generation", mScanSourcesGeneration);
1129    msg->post();
1130
1131    mScanSourcesPending = true;
1132}
1133
1134void NuPlayer::openAudioSink(const sp<AMessage> &format, bool offloadOnly) {
1135    ALOGV("openAudioSink: offloadOnly(%d) mOffloadAudio(%d)",
1136            offloadOnly, mOffloadAudio);
1137    bool audioSinkChanged = false;
1138
1139    int32_t numChannels;
1140    CHECK(format->findInt32("channel-count", &numChannels));
1141
1142    int32_t channelMask;
1143    if (!format->findInt32("channel-mask", &channelMask)) {
1144        // signal to the AudioSink to derive the mask from count.
1145        channelMask = CHANNEL_MASK_USE_CHANNEL_ORDER;
1146    }
1147
1148    int32_t sampleRate;
1149    CHECK(format->findInt32("sample-rate", &sampleRate));
1150
1151    uint32_t flags;
1152    int64_t durationUs;
1153    // FIXME: we should handle the case where the video decoder
1154    // is created after we receive the format change indication.
1155    // Current code will just make that we select deep buffer
1156    // with video which should not be a problem as it should
1157    // not prevent from keeping A/V sync.
1158    if (mVideoDecoder == NULL &&
1159            mSource->getDuration(&durationUs) == OK &&
1160            durationUs
1161                > AUDIO_SINK_MIN_DEEP_BUFFER_DURATION_US) {
1162        flags = AUDIO_OUTPUT_FLAG_DEEP_BUFFER;
1163    } else {
1164        flags = AUDIO_OUTPUT_FLAG_NONE;
1165    }
1166
1167    if (mOffloadAudio) {
1168        audio_format_t audioFormat = AUDIO_FORMAT_PCM_16_BIT;
1169        AString mime;
1170        CHECK(format->findString("mime", &mime));
1171        status_t err = mapMimeToAudioFormat(audioFormat, mime.c_str());
1172
1173        if (err != OK) {
1174            ALOGE("Couldn't map mime \"%s\" to a valid "
1175                    "audio_format", mime.c_str());
1176            mOffloadAudio = false;
1177        } else {
1178            ALOGV("Mime \"%s\" mapped to audio_format 0x%x",
1179                    mime.c_str(), audioFormat);
1180
1181            int avgBitRate = -1;
1182            format->findInt32("bit-rate", &avgBitRate);
1183
1184            int32_t aacProfile = -1;
1185            if (audioFormat == AUDIO_FORMAT_AAC
1186                    && format->findInt32("aac-profile", &aacProfile)) {
1187                // Redefine AAC format as per aac profile
1188                mapAACProfileToAudioFormat(
1189                        audioFormat,
1190                        aacProfile);
1191            }
1192
1193            audio_offload_info_t offloadInfo = AUDIO_INFO_INITIALIZER;
1194            offloadInfo.duration_us = -1;
1195            format->findInt64(
1196                    "durationUs", &offloadInfo.duration_us);
1197            offloadInfo.sample_rate = sampleRate;
1198            offloadInfo.channel_mask = channelMask;
1199            offloadInfo.format = audioFormat;
1200            offloadInfo.stream_type = AUDIO_STREAM_MUSIC;
1201            offloadInfo.bit_rate = avgBitRate;
1202            offloadInfo.has_video = (mVideoDecoder != NULL);
1203            offloadInfo.is_streaming = true;
1204
1205            if (memcmp(&mCurrentOffloadInfo, &offloadInfo, sizeof(offloadInfo)) == 0) {
1206                ALOGV("openAudioSink: no change in offload mode");
1207                return;  // no change from previous configuration, everything ok.
1208            }
1209            ALOGV("openAudioSink: try to open AudioSink in offload mode");
1210            flags |= AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD;
1211            flags &= ~AUDIO_OUTPUT_FLAG_DEEP_BUFFER;
1212            audioSinkChanged = true;
1213            mAudioSink->close();
1214            err = mAudioSink->open(
1215                    sampleRate,
1216                    numChannels,
1217                    (audio_channel_mask_t)channelMask,
1218                    audioFormat,
1219                    8 /* bufferCount */,
1220                    &NuPlayer::Renderer::AudioSinkCallback,
1221                    mRenderer.get(),
1222                    (audio_output_flags_t)flags,
1223                    &offloadInfo);
1224
1225            if (err == OK) {
1226                // If the playback is offloaded to h/w, we pass
1227                // the HAL some metadata information.
1228                // We don't want to do this for PCM because it
1229                // will be going through the AudioFlinger mixer
1230                // before reaching the hardware.
1231                sp<MetaData> audioMeta =
1232                        mSource->getFormatMeta(true /* audio */);
1233                sendMetaDataToHal(mAudioSink, audioMeta);
1234                mCurrentOffloadInfo = offloadInfo;
1235                err = mAudioSink->start();
1236                ALOGV_IF(err == OK, "openAudioSink: offload succeeded");
1237            }
1238            if (err != OK) {
1239                // Clean up, fall back to non offload mode.
1240                mAudioSink->close();
1241                mRenderer->signalDisableOffloadAudio();
1242                mOffloadAudio = false;
1243                mCurrentOffloadInfo = AUDIO_INFO_INITIALIZER;
1244                ALOGV("openAudioSink: offload failed");
1245            }
1246        }
1247    }
1248    if (!offloadOnly && !mOffloadAudio) {
1249        flags &= ~AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD;
1250        ALOGV("openAudioSink: open AudioSink in NON-offload mode");
1251
1252        audioSinkChanged = true;
1253        mAudioSink->close();
1254        mCurrentOffloadInfo = AUDIO_INFO_INITIALIZER;
1255        CHECK_EQ(mAudioSink->open(
1256                    sampleRate,
1257                    numChannels,
1258                    (audio_channel_mask_t)channelMask,
1259                    AUDIO_FORMAT_PCM_16_BIT,
1260                    8 /* bufferCount */,
1261                    NULL,
1262                    NULL,
1263                    (audio_output_flags_t)flags),
1264                 (status_t)OK);
1265        mAudioSink->start();
1266    }
1267    if (audioSinkChanged) {
1268        mRenderer->signalAudioSinkChanged();
1269    }
1270}
1271
1272void NuPlayer::closeAudioSink() {
1273    mAudioSink->close();
1274    mCurrentOffloadInfo = AUDIO_INFO_INITIALIZER;
1275}
1276
1277status_t NuPlayer::instantiateDecoder(bool audio, sp<Decoder> *decoder) {
1278    if (*decoder != NULL) {
1279        return OK;
1280    }
1281
1282    sp<AMessage> format = mSource->getFormat(audio);
1283
1284    if (format == NULL) {
1285        return -EWOULDBLOCK;
1286    }
1287
1288    if (!audio) {
1289        AString mime;
1290        CHECK(format->findString("mime", &mime));
1291        mVideoIsAVC = !strcasecmp(MEDIA_MIMETYPE_VIDEO_AVC, mime.c_str());
1292
1293        sp<AMessage> ccNotify = new AMessage(kWhatClosedCaptionNotify, id());
1294        mCCDecoder = new CCDecoder(ccNotify);
1295
1296        if (mSourceFlags & Source::FLAG_SECURE) {
1297            format->setInt32("secure", true);
1298        }
1299    }
1300
1301    if (audio) {
1302        sp<AMessage> notify = new AMessage(kWhatAudioNotify, id());
1303        ++mAudioDecoderGeneration;
1304        notify->setInt32("generation", mAudioDecoderGeneration);
1305
1306        if (mOffloadAudio) {
1307            *decoder = new DecoderPassThrough(notify);
1308        } else {
1309            *decoder = new Decoder(notify);
1310        }
1311    } else {
1312        sp<AMessage> notify = new AMessage(kWhatVideoNotify, id());
1313        ++mVideoDecoderGeneration;
1314        notify->setInt32("generation", mVideoDecoderGeneration);
1315
1316        *decoder = new Decoder(notify, mNativeWindow);
1317    }
1318    (*decoder)->init();
1319    (*decoder)->configure(format);
1320
1321    // allocate buffers to decrypt widevine source buffers
1322    if (!audio && (mSourceFlags & Source::FLAG_SECURE)) {
1323        Vector<sp<ABuffer> > inputBufs;
1324        CHECK_EQ((*decoder)->getInputBuffers(&inputBufs), (status_t)OK);
1325
1326        Vector<MediaBuffer *> mediaBufs;
1327        for (size_t i = 0; i < inputBufs.size(); i++) {
1328            const sp<ABuffer> &buffer = inputBufs[i];
1329            MediaBuffer *mbuf = new MediaBuffer(buffer->data(), buffer->size());
1330            mediaBufs.push(mbuf);
1331        }
1332
1333        status_t err = mSource->setBuffers(audio, mediaBufs);
1334        if (err != OK) {
1335            for (size_t i = 0; i < mediaBufs.size(); ++i) {
1336                mediaBufs[i]->release();
1337            }
1338            mediaBufs.clear();
1339            ALOGE("Secure source didn't support secure mediaBufs.");
1340            return err;
1341        }
1342    }
1343    return OK;
1344}
1345
1346status_t NuPlayer::feedDecoderInputData(bool audio, const sp<AMessage> &msg) {
1347    sp<AMessage> reply;
1348    CHECK(msg->findMessage("reply", &reply));
1349
1350    if ((audio && mFlushingAudio != NONE)
1351            || (!audio && mFlushingVideo != NONE)
1352            || mSource == NULL) {
1353        reply->setInt32("err", INFO_DISCONTINUITY);
1354        reply->post();
1355        return OK;
1356    }
1357
1358    sp<ABuffer> accessUnit;
1359
1360    // Aggregate smaller buffers into a larger buffer.
1361    // The goal is to reduce power consumption.
1362    // Note this will not work if the decoder requires one frame per buffer.
1363    bool doBufferAggregation = (audio && mOffloadAudio);
1364    bool needMoreData = false;
1365
1366    bool dropAccessUnit;
1367    do {
1368        status_t err;
1369        // Did we save an accessUnit earlier because of a discontinuity?
1370        if (audio && (mPendingAudioAccessUnit != NULL)) {
1371            accessUnit = mPendingAudioAccessUnit;
1372            mPendingAudioAccessUnit.clear();
1373            err = mPendingAudioErr;
1374            ALOGV("feedDecoderInputData() use mPendingAudioAccessUnit");
1375        } else {
1376            err = mSource->dequeueAccessUnit(audio, &accessUnit);
1377        }
1378
1379        if (err == -EWOULDBLOCK) {
1380            return err;
1381        } else if (err != OK) {
1382            if (err == INFO_DISCONTINUITY) {
1383                if (doBufferAggregation && (mAggregateBuffer != NULL)) {
1384                    // We already have some data so save this for later.
1385                    mPendingAudioErr = err;
1386                    mPendingAudioAccessUnit = accessUnit;
1387                    accessUnit.clear();
1388                    ALOGD("feedDecoderInputData() save discontinuity for later");
1389                    break;
1390                }
1391                int32_t type;
1392                CHECK(accessUnit->meta()->findInt32("discontinuity", &type));
1393
1394                bool formatChange =
1395                    (audio &&
1396                     (type & ATSParser::DISCONTINUITY_AUDIO_FORMAT))
1397                    || (!audio &&
1398                            (type & ATSParser::DISCONTINUITY_VIDEO_FORMAT));
1399
1400                bool timeChange = (type & ATSParser::DISCONTINUITY_TIME) != 0;
1401
1402                ALOGI("%s discontinuity (formatChange=%d, time=%d)",
1403                     audio ? "audio" : "video", formatChange, timeChange);
1404
1405                if (audio) {
1406                    mSkipRenderingAudioUntilMediaTimeUs = -1;
1407                } else {
1408                    mSkipRenderingVideoUntilMediaTimeUs = -1;
1409                }
1410
1411                if (timeChange) {
1412                    sp<AMessage> extra;
1413                    if (accessUnit->meta()->findMessage("extra", &extra)
1414                            && extra != NULL) {
1415                        int64_t resumeAtMediaTimeUs;
1416                        if (extra->findInt64(
1417                                    "resume-at-mediatimeUs", &resumeAtMediaTimeUs)) {
1418                            ALOGI("suppressing rendering of %s until %lld us",
1419                                    audio ? "audio" : "video", resumeAtMediaTimeUs);
1420
1421                            if (audio) {
1422                                mSkipRenderingAudioUntilMediaTimeUs =
1423                                    resumeAtMediaTimeUs;
1424                            } else {
1425                                mSkipRenderingVideoUntilMediaTimeUs =
1426                                    resumeAtMediaTimeUs;
1427                            }
1428                        }
1429                    }
1430                }
1431
1432                mTimeDiscontinuityPending =
1433                    mTimeDiscontinuityPending || timeChange;
1434
1435                bool seamlessFormatChange = false;
1436                sp<AMessage> newFormat = mSource->getFormat(audio);
1437                if (formatChange) {
1438                    seamlessFormatChange =
1439                        getDecoder(audio)->supportsSeamlessFormatChange(newFormat);
1440                    // treat seamless format change separately
1441                    formatChange = !seamlessFormatChange;
1442                }
1443                bool shutdownOrFlush = formatChange || timeChange;
1444
1445                // We want to queue up scan-sources only once per discontinuity.
1446                // We control this by doing it only if neither audio nor video are
1447                // flushing or shutting down.  (After handling 1st discontinuity, one
1448                // of the flushing states will not be NONE.)
1449                // No need to scan sources if this discontinuity does not result
1450                // in a flush or shutdown, as the flushing state will stay NONE.
1451                if (mFlushingAudio == NONE && mFlushingVideo == NONE &&
1452                        shutdownOrFlush) {
1453                    // And we'll resume scanning sources once we're done
1454                    // flushing.
1455                    mDeferredActions.push_front(
1456                            new SimpleAction(
1457                                &NuPlayer::performScanSources));
1458                }
1459
1460                if (formatChange /* not seamless */) {
1461                    // must change decoder
1462                    flushDecoder(audio, /* needShutdown = */ true);
1463                } else if (timeChange) {
1464                    // need to flush
1465                    flushDecoder(audio, /* needShutdown = */ false, newFormat);
1466                    err = OK;
1467                } else if (seamlessFormatChange) {
1468                    // reuse existing decoder and don't flush
1469                    updateDecoderFormatWithoutFlush(audio, newFormat);
1470                    err = OK;
1471                } else {
1472                    // This stream is unaffected by the discontinuity
1473                    return -EWOULDBLOCK;
1474                }
1475            }
1476
1477            reply->setInt32("err", err);
1478            reply->post();
1479            return OK;
1480        }
1481
1482        if (!audio) {
1483            ++mNumFramesTotal;
1484        }
1485
1486        dropAccessUnit = false;
1487        if (!audio
1488                && !(mSourceFlags & Source::FLAG_SECURE)
1489                && mVideoLateByUs > 100000ll
1490                && mVideoIsAVC
1491                && !IsAVCReferenceFrame(accessUnit)) {
1492            dropAccessUnit = true;
1493            ++mNumFramesDropped;
1494        }
1495
1496        size_t smallSize = accessUnit->size();
1497        needMoreData = false;
1498        if (doBufferAggregation && (mAggregateBuffer == NULL)
1499                // Don't bother if only room for a few small buffers.
1500                && (smallSize < (kAggregateBufferSizeBytes / 3))) {
1501            // Create a larger buffer for combining smaller buffers from the extractor.
1502            mAggregateBuffer = new ABuffer(kAggregateBufferSizeBytes);
1503            mAggregateBuffer->setRange(0, 0); // start empty
1504        }
1505
1506        if (doBufferAggregation && (mAggregateBuffer != NULL)) {
1507            int64_t timeUs;
1508            int64_t dummy;
1509            bool smallTimestampValid = accessUnit->meta()->findInt64("timeUs", &timeUs);
1510            bool bigTimestampValid = mAggregateBuffer->meta()->findInt64("timeUs", &dummy);
1511            // Will the smaller buffer fit?
1512            size_t bigSize = mAggregateBuffer->size();
1513            size_t roomLeft = mAggregateBuffer->capacity() - bigSize;
1514            // Should we save this small buffer for the next big buffer?
1515            // If the first small buffer did not have a timestamp then save
1516            // any buffer that does have a timestamp until the next big buffer.
1517            if ((smallSize > roomLeft)
1518                || (!bigTimestampValid && (bigSize > 0) && smallTimestampValid)) {
1519                mPendingAudioErr = err;
1520                mPendingAudioAccessUnit = accessUnit;
1521                accessUnit.clear();
1522            } else {
1523                // Grab time from first small buffer if available.
1524                if ((bigSize == 0) && smallTimestampValid) {
1525                    mAggregateBuffer->meta()->setInt64("timeUs", timeUs);
1526                }
1527                // Append small buffer to the bigger buffer.
1528                memcpy(mAggregateBuffer->base() + bigSize, accessUnit->data(), smallSize);
1529                bigSize += smallSize;
1530                mAggregateBuffer->setRange(0, bigSize);
1531
1532                // Keep looping until we run out of room in the mAggregateBuffer.
1533                needMoreData = true;
1534
1535                ALOGV("feedDecoderInputData() smallSize = %zu, bigSize = %zu, capacity = %zu",
1536                        smallSize, bigSize, mAggregateBuffer->capacity());
1537            }
1538        }
1539    } while (dropAccessUnit || needMoreData);
1540
1541    // ALOGV("returned a valid buffer of %s data", audio ? "audio" : "video");
1542
1543#if 0
1544    int64_t mediaTimeUs;
1545    CHECK(accessUnit->meta()->findInt64("timeUs", &mediaTimeUs));
1546    ALOGV("feeding %s input buffer at media time %.2f secs",
1547         audio ? "audio" : "video",
1548         mediaTimeUs / 1E6);
1549#endif
1550
1551    if (!audio) {
1552        mCCDecoder->decode(accessUnit);
1553    }
1554
1555    if (doBufferAggregation && (mAggregateBuffer != NULL)) {
1556        ALOGV("feedDecoderInputData() reply with aggregated buffer, %zu",
1557                mAggregateBuffer->size());
1558        reply->setBuffer("buffer", mAggregateBuffer);
1559        mAggregateBuffer.clear();
1560    } else {
1561        reply->setBuffer("buffer", accessUnit);
1562    }
1563
1564    reply->post();
1565
1566    return OK;
1567}
1568
1569void NuPlayer::renderBuffer(bool audio, const sp<AMessage> &msg) {
1570    // ALOGV("renderBuffer %s", audio ? "audio" : "video");
1571
1572    sp<AMessage> reply;
1573    CHECK(msg->findMessage("reply", &reply));
1574
1575    if ((audio && mFlushingAudio != NONE)
1576            || (!audio && mFlushingVideo != NONE)) {
1577        // We're currently attempting to flush the decoder, in order
1578        // to complete this, the decoder wants all its buffers back,
1579        // so we don't want any output buffers it sent us (from before
1580        // we initiated the flush) to be stuck in the renderer's queue.
1581
1582        ALOGV("we're still flushing the %s decoder, sending its output buffer"
1583             " right back.", audio ? "audio" : "video");
1584
1585        reply->post();
1586        return;
1587    }
1588
1589    sp<ABuffer> buffer;
1590    CHECK(msg->findBuffer("buffer", &buffer));
1591
1592    int64_t mediaTimeUs;
1593    CHECK(buffer->meta()->findInt64("timeUs", &mediaTimeUs));
1594
1595    int64_t &skipUntilMediaTimeUs =
1596        audio
1597            ? mSkipRenderingAudioUntilMediaTimeUs
1598            : mSkipRenderingVideoUntilMediaTimeUs;
1599
1600    if (skipUntilMediaTimeUs >= 0) {
1601
1602        if (mediaTimeUs < skipUntilMediaTimeUs) {
1603            ALOGV("dropping %s buffer at time %lld as requested.",
1604                 audio ? "audio" : "video",
1605                 mediaTimeUs);
1606
1607            reply->post();
1608            return;
1609        }
1610
1611        skipUntilMediaTimeUs = -1;
1612    }
1613
1614    if (!audio && mCCDecoder->isSelected()) {
1615        mCCDecoder->display(mediaTimeUs);
1616    }
1617
1618    mRenderer->queueBuffer(audio, buffer, reply);
1619}
1620
1621void NuPlayer::updateVideoSize(
1622        const sp<AMessage> &inputFormat,
1623        const sp<AMessage> &outputFormat) {
1624    if (inputFormat == NULL) {
1625        ALOGW("Unknown video size, reporting 0x0!");
1626        notifyListener(MEDIA_SET_VIDEO_SIZE, 0, 0);
1627        return;
1628    }
1629
1630    int32_t displayWidth, displayHeight;
1631    int32_t cropLeft, cropTop, cropRight, cropBottom;
1632
1633    if (outputFormat != NULL) {
1634        int32_t width, height;
1635        CHECK(outputFormat->findInt32("width", &width));
1636        CHECK(outputFormat->findInt32("height", &height));
1637
1638        int32_t cropLeft, cropTop, cropRight, cropBottom;
1639        CHECK(outputFormat->findRect(
1640                    "crop",
1641                    &cropLeft, &cropTop, &cropRight, &cropBottom));
1642
1643        displayWidth = cropRight - cropLeft + 1;
1644        displayHeight = cropBottom - cropTop + 1;
1645
1646        ALOGV("Video output format changed to %d x %d "
1647             "(crop: %d x %d @ (%d, %d))",
1648             width, height,
1649             displayWidth,
1650             displayHeight,
1651             cropLeft, cropTop);
1652    } else {
1653        CHECK(inputFormat->findInt32("width", &displayWidth));
1654        CHECK(inputFormat->findInt32("height", &displayHeight));
1655
1656        ALOGV("Video input format %d x %d", displayWidth, displayHeight);
1657    }
1658
1659    // Take into account sample aspect ratio if necessary:
1660    int32_t sarWidth, sarHeight;
1661    if (inputFormat->findInt32("sar-width", &sarWidth)
1662            && inputFormat->findInt32("sar-height", &sarHeight)) {
1663        ALOGV("Sample aspect ratio %d : %d", sarWidth, sarHeight);
1664
1665        displayWidth = (displayWidth * sarWidth) / sarHeight;
1666
1667        ALOGV("display dimensions %d x %d", displayWidth, displayHeight);
1668    }
1669
1670    int32_t rotationDegrees;
1671    if (!inputFormat->findInt32("rotation-degrees", &rotationDegrees)) {
1672        rotationDegrees = 0;
1673    }
1674
1675    if (rotationDegrees == 90 || rotationDegrees == 270) {
1676        int32_t tmp = displayWidth;
1677        displayWidth = displayHeight;
1678        displayHeight = tmp;
1679    }
1680
1681    notifyListener(
1682            MEDIA_SET_VIDEO_SIZE,
1683            displayWidth,
1684            displayHeight);
1685}
1686
1687void NuPlayer::notifyListener(int msg, int ext1, int ext2, const Parcel *in) {
1688    if (mDriver == NULL) {
1689        return;
1690    }
1691
1692    sp<NuPlayerDriver> driver = mDriver.promote();
1693
1694    if (driver == NULL) {
1695        return;
1696    }
1697
1698    driver->notifyListener(msg, ext1, ext2, in);
1699}
1700
1701void NuPlayer::flushDecoder(
1702        bool audio, bool needShutdown, const sp<AMessage> &newFormat) {
1703    ALOGV("[%s] flushDecoder needShutdown=%d",
1704          audio ? "audio" : "video", needShutdown);
1705
1706    const sp<Decoder> &decoder = getDecoder(audio);
1707    if (decoder == NULL) {
1708        ALOGI("flushDecoder %s without decoder present",
1709             audio ? "audio" : "video");
1710        return;
1711    }
1712
1713    // Make sure we don't continue to scan sources until we finish flushing.
1714    ++mScanSourcesGeneration;
1715    mScanSourcesPending = false;
1716
1717    decoder->signalFlush(newFormat);
1718    mRenderer->flush(audio);
1719
1720    FlushStatus newStatus =
1721        needShutdown ? FLUSHING_DECODER_SHUTDOWN : FLUSHING_DECODER;
1722
1723    if (audio) {
1724        ALOGE_IF(mFlushingAudio != NONE,
1725                "audio flushDecoder() is called in state %d", mFlushingAudio);
1726        mFlushingAudio = newStatus;
1727    } else {
1728        ALOGE_IF(mFlushingVideo != NONE,
1729                "video flushDecoder() is called in state %d", mFlushingVideo);
1730        mFlushingVideo = newStatus;
1731
1732        if (mCCDecoder != NULL) {
1733            mCCDecoder->flush();
1734        }
1735    }
1736}
1737
1738void NuPlayer::updateDecoderFormatWithoutFlush(
1739        bool audio, const sp<AMessage> &format) {
1740    ALOGV("[%s] updateDecoderFormatWithoutFlush", audio ? "audio" : "video");
1741
1742    const sp<Decoder> &decoder = getDecoder(audio);
1743    if (decoder == NULL) {
1744        ALOGI("updateDecoderFormatWithoutFlush %s without decoder present",
1745             audio ? "audio" : "video");
1746        return;
1747    }
1748
1749    decoder->signalUpdateFormat(format);
1750}
1751
1752void NuPlayer::queueDecoderShutdown(
1753        bool audio, bool video, const sp<AMessage> &reply) {
1754    ALOGI("queueDecoderShutdown audio=%d, video=%d", audio, video);
1755
1756    mDeferredActions.push_back(
1757            new ShutdownDecoderAction(audio, video));
1758
1759    mDeferredActions.push_back(
1760            new SimpleAction(&NuPlayer::performScanSources));
1761
1762    mDeferredActions.push_back(new PostMessageAction(reply));
1763
1764    processDeferredActions();
1765}
1766
1767status_t NuPlayer::setVideoScalingMode(int32_t mode) {
1768    mVideoScalingMode = mode;
1769    if (mNativeWindow != NULL) {
1770        status_t ret = native_window_set_scaling_mode(
1771                mNativeWindow->getNativeWindow().get(), mVideoScalingMode);
1772        if (ret != OK) {
1773            ALOGE("Failed to set scaling mode (%d): %s",
1774                -ret, strerror(-ret));
1775            return ret;
1776        }
1777    }
1778    return OK;
1779}
1780
1781status_t NuPlayer::getTrackInfo(Parcel* reply) const {
1782    sp<AMessage> msg = new AMessage(kWhatGetTrackInfo, id());
1783    msg->setPointer("reply", reply);
1784
1785    sp<AMessage> response;
1786    status_t err = msg->postAndAwaitResponse(&response);
1787    return err;
1788}
1789
1790status_t NuPlayer::getSelectedTrack(int32_t type, Parcel* reply) const {
1791    sp<AMessage> msg = new AMessage(kWhatGetSelectedTrack, id());
1792    msg->setPointer("reply", reply);
1793    msg->setInt32("type", type);
1794
1795    sp<AMessage> response;
1796    status_t err = msg->postAndAwaitResponse(&response);
1797    if (err == OK && response != NULL) {
1798        CHECK(response->findInt32("err", &err));
1799    }
1800    return err;
1801}
1802
1803status_t NuPlayer::selectTrack(size_t trackIndex, bool select) {
1804    sp<AMessage> msg = new AMessage(kWhatSelectTrack, id());
1805    msg->setSize("trackIndex", trackIndex);
1806    msg->setInt32("select", select);
1807
1808    sp<AMessage> response;
1809    status_t err = msg->postAndAwaitResponse(&response);
1810
1811    if (err != OK) {
1812        return err;
1813    }
1814
1815    if (!response->findInt32("err", &err)) {
1816        err = OK;
1817    }
1818
1819    return err;
1820}
1821
1822sp<MetaData> NuPlayer::getFileMeta() {
1823    return mSource->getFileFormatMeta();
1824}
1825
1826void NuPlayer::schedulePollDuration() {
1827    sp<AMessage> msg = new AMessage(kWhatPollDuration, id());
1828    msg->setInt32("generation", mPollDurationGeneration);
1829    msg->post();
1830}
1831
1832void NuPlayer::cancelPollDuration() {
1833    ++mPollDurationGeneration;
1834}
1835
1836void NuPlayer::processDeferredActions() {
1837    while (!mDeferredActions.empty()) {
1838        // We won't execute any deferred actions until we're no longer in
1839        // an intermediate state, i.e. one more more decoders are currently
1840        // flushing or shutting down.
1841
1842        if (mFlushingAudio != NONE || mFlushingVideo != NONE) {
1843            // We're currently flushing, postpone the reset until that's
1844            // completed.
1845
1846            ALOGV("postponing action mFlushingAudio=%d, mFlushingVideo=%d",
1847                  mFlushingAudio, mFlushingVideo);
1848
1849            break;
1850        }
1851
1852        sp<Action> action = *mDeferredActions.begin();
1853        mDeferredActions.erase(mDeferredActions.begin());
1854
1855        action->execute(this);
1856    }
1857}
1858
1859void NuPlayer::performSeek(int64_t seekTimeUs, bool needNotify) {
1860    ALOGV("performSeek seekTimeUs=%lld us (%.2f secs), needNotify(%d)",
1861          seekTimeUs,
1862          seekTimeUs / 1E6,
1863          needNotify);
1864
1865    if (mSource == NULL) {
1866        // This happens when reset occurs right before the loop mode
1867        // asynchronously seeks to the start of the stream.
1868        LOG_ALWAYS_FATAL_IF(mAudioDecoder != NULL || mVideoDecoder != NULL,
1869                "mSource is NULL and decoders not NULL audio(%p) video(%p)",
1870                mAudioDecoder.get(), mVideoDecoder.get());
1871        return;
1872    }
1873    mSource->seekTo(seekTimeUs);
1874    ++mTimedTextGeneration;
1875
1876    if (mDriver != NULL) {
1877        sp<NuPlayerDriver> driver = mDriver.promote();
1878        if (driver != NULL) {
1879            driver->notifyPosition(seekTimeUs);
1880            if (needNotify) {
1881                driver->notifySeekComplete();
1882            }
1883        }
1884    }
1885
1886    // everything's flushed, continue playback.
1887}
1888
1889void NuPlayer::performDecoderFlush() {
1890    ALOGV("performDecoderFlush");
1891
1892    if (mAudioDecoder == NULL && mVideoDecoder == NULL) {
1893        return;
1894    }
1895
1896    mTimeDiscontinuityPending = true;
1897
1898    if (mAudioDecoder != NULL) {
1899        flushDecoder(true /* audio */, false /* needShutdown */);
1900    }
1901
1902    if (mVideoDecoder != NULL) {
1903        flushDecoder(false /* audio */, false /* needShutdown */);
1904    }
1905}
1906
1907void NuPlayer::performDecoderShutdown(bool audio, bool video) {
1908    ALOGV("performDecoderShutdown audio=%d, video=%d", audio, video);
1909
1910    if ((!audio || mAudioDecoder == NULL)
1911            && (!video || mVideoDecoder == NULL)) {
1912        return;
1913    }
1914
1915    mTimeDiscontinuityPending = true;
1916
1917    if (audio && mAudioDecoder != NULL) {
1918        flushDecoder(true /* audio */, true /* needShutdown */);
1919    }
1920
1921    if (video && mVideoDecoder != NULL) {
1922        flushDecoder(false /* audio */, true /* needShutdown */);
1923    }
1924}
1925
1926void NuPlayer::performReset() {
1927    ALOGV("performReset");
1928
1929    CHECK(mAudioDecoder == NULL);
1930    CHECK(mVideoDecoder == NULL);
1931
1932    cancelPollDuration();
1933
1934    ++mScanSourcesGeneration;
1935    mScanSourcesPending = false;
1936
1937    if (mRendererLooper != NULL) {
1938        if (mRenderer != NULL) {
1939            mRendererLooper->unregisterHandler(mRenderer->id());
1940        }
1941        mRendererLooper->stop();
1942        mRendererLooper.clear();
1943    }
1944    mRenderer.clear();
1945    ++mRendererGeneration;
1946
1947    if (mSource != NULL) {
1948        mSource->stop();
1949
1950        mSource.clear();
1951    }
1952
1953    if (mDriver != NULL) {
1954        sp<NuPlayerDriver> driver = mDriver.promote();
1955        if (driver != NULL) {
1956            driver->notifyResetComplete();
1957        }
1958    }
1959
1960    mStarted = false;
1961}
1962
1963void NuPlayer::performScanSources() {
1964    ALOGV("performScanSources");
1965
1966    if (!mStarted) {
1967        return;
1968    }
1969
1970    if (mAudioDecoder == NULL || mVideoDecoder == NULL) {
1971        postScanSources();
1972    }
1973}
1974
1975void NuPlayer::performSetSurface(const sp<NativeWindowWrapper> &wrapper) {
1976    ALOGV("performSetSurface");
1977
1978    mNativeWindow = wrapper;
1979
1980    // XXX - ignore error from setVideoScalingMode for now
1981    setVideoScalingMode(mVideoScalingMode);
1982
1983    if (mDriver != NULL) {
1984        sp<NuPlayerDriver> driver = mDriver.promote();
1985        if (driver != NULL) {
1986            driver->notifySetSurfaceComplete();
1987        }
1988    }
1989}
1990
1991void NuPlayer::onSourceNotify(const sp<AMessage> &msg) {
1992    int32_t what;
1993    CHECK(msg->findInt32("what", &what));
1994
1995    switch (what) {
1996        case Source::kWhatPrepared:
1997        {
1998            if (mSource == NULL) {
1999                // This is a stale notification from a source that was
2000                // asynchronously preparing when the client called reset().
2001                // We handled the reset, the source is gone.
2002                break;
2003            }
2004
2005            int32_t err;
2006            CHECK(msg->findInt32("err", &err));
2007
2008            sp<NuPlayerDriver> driver = mDriver.promote();
2009            if (driver != NULL) {
2010                // notify duration first, so that it's definitely set when
2011                // the app received the "prepare complete" callback.
2012                int64_t durationUs;
2013                if (mSource->getDuration(&durationUs) == OK) {
2014                    driver->notifyDuration(durationUs);
2015                }
2016                driver->notifyPrepareCompleted(err);
2017            }
2018
2019            break;
2020        }
2021
2022        case Source::kWhatFlagsChanged:
2023        {
2024            uint32_t flags;
2025            CHECK(msg->findInt32("flags", (int32_t *)&flags));
2026
2027            sp<NuPlayerDriver> driver = mDriver.promote();
2028            if (driver != NULL) {
2029                driver->notifyFlagsChanged(flags);
2030            }
2031
2032            if ((mSourceFlags & Source::FLAG_DYNAMIC_DURATION)
2033                    && (!(flags & Source::FLAG_DYNAMIC_DURATION))) {
2034                cancelPollDuration();
2035            } else if (!(mSourceFlags & Source::FLAG_DYNAMIC_DURATION)
2036                    && (flags & Source::FLAG_DYNAMIC_DURATION)
2037                    && (mAudioDecoder != NULL || mVideoDecoder != NULL)) {
2038                schedulePollDuration();
2039            }
2040
2041            mSourceFlags = flags;
2042            break;
2043        }
2044
2045        case Source::kWhatVideoSizeChanged:
2046        {
2047            sp<AMessage> format;
2048            CHECK(msg->findMessage("format", &format));
2049
2050            updateVideoSize(format);
2051            break;
2052        }
2053
2054        case Source::kWhatBufferingUpdate:
2055        {
2056            int32_t percentage;
2057            CHECK(msg->findInt32("percentage", &percentage));
2058
2059            notifyListener(MEDIA_BUFFERING_UPDATE, percentage, 0);
2060            break;
2061        }
2062
2063        case Source::kWhatBufferingStart:
2064        {
2065            notifyListener(MEDIA_INFO, MEDIA_INFO_BUFFERING_START, 0);
2066            break;
2067        }
2068
2069        case Source::kWhatBufferingEnd:
2070        {
2071            notifyListener(MEDIA_INFO, MEDIA_INFO_BUFFERING_END, 0);
2072            break;
2073        }
2074
2075        case Source::kWhatSubtitleData:
2076        {
2077            sp<ABuffer> buffer;
2078            CHECK(msg->findBuffer("buffer", &buffer));
2079
2080            sendSubtitleData(buffer, 0 /* baseIndex */);
2081            break;
2082        }
2083
2084        case Source::kWhatTimedTextData:
2085        {
2086            int32_t generation;
2087            if (msg->findInt32("generation", &generation)
2088                    && generation != mTimedTextGeneration) {
2089                break;
2090            }
2091
2092            sp<ABuffer> buffer;
2093            CHECK(msg->findBuffer("buffer", &buffer));
2094
2095            sp<NuPlayerDriver> driver = mDriver.promote();
2096            if (driver == NULL) {
2097                break;
2098            }
2099
2100            int posMs;
2101            int64_t timeUs, posUs;
2102            driver->getCurrentPosition(&posMs);
2103            posUs = posMs * 1000;
2104            CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
2105
2106            if (posUs < timeUs) {
2107                if (!msg->findInt32("generation", &generation)) {
2108                    msg->setInt32("generation", mTimedTextGeneration);
2109                }
2110                msg->post(timeUs - posUs);
2111            } else {
2112                sendTimedTextData(buffer);
2113            }
2114            break;
2115        }
2116
2117        case Source::kWhatQueueDecoderShutdown:
2118        {
2119            int32_t audio, video;
2120            CHECK(msg->findInt32("audio", &audio));
2121            CHECK(msg->findInt32("video", &video));
2122
2123            sp<AMessage> reply;
2124            CHECK(msg->findMessage("reply", &reply));
2125
2126            queueDecoderShutdown(audio, video, reply);
2127            break;
2128        }
2129
2130        case Source::kWhatDrmNoLicense:
2131        {
2132            notifyListener(MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, ERROR_DRM_NO_LICENSE);
2133            break;
2134        }
2135
2136        default:
2137            TRESPASS();
2138    }
2139}
2140
2141void NuPlayer::onClosedCaptionNotify(const sp<AMessage> &msg) {
2142    int32_t what;
2143    CHECK(msg->findInt32("what", &what));
2144
2145    switch (what) {
2146        case NuPlayer::CCDecoder::kWhatClosedCaptionData:
2147        {
2148            sp<ABuffer> buffer;
2149            CHECK(msg->findBuffer("buffer", &buffer));
2150
2151            size_t inbandTracks = 0;
2152            if (mSource != NULL) {
2153                inbandTracks = mSource->getTrackCount();
2154            }
2155
2156            sendSubtitleData(buffer, inbandTracks);
2157            break;
2158        }
2159
2160        case NuPlayer::CCDecoder::kWhatTrackAdded:
2161        {
2162            notifyListener(MEDIA_INFO, MEDIA_INFO_METADATA_UPDATE, 0);
2163
2164            break;
2165        }
2166
2167        default:
2168            TRESPASS();
2169    }
2170
2171
2172}
2173
2174void NuPlayer::sendSubtitleData(const sp<ABuffer> &buffer, int32_t baseIndex) {
2175    int32_t trackIndex;
2176    int64_t timeUs, durationUs;
2177    CHECK(buffer->meta()->findInt32("trackIndex", &trackIndex));
2178    CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
2179    CHECK(buffer->meta()->findInt64("durationUs", &durationUs));
2180
2181    Parcel in;
2182    in.writeInt32(trackIndex + baseIndex);
2183    in.writeInt64(timeUs);
2184    in.writeInt64(durationUs);
2185    in.writeInt32(buffer->size());
2186    in.writeInt32(buffer->size());
2187    in.write(buffer->data(), buffer->size());
2188
2189    notifyListener(MEDIA_SUBTITLE_DATA, 0, 0, &in);
2190}
2191
2192void NuPlayer::sendTimedTextData(const sp<ABuffer> &buffer) {
2193    const void *data;
2194    size_t size = 0;
2195    int64_t timeUs;
2196    int32_t flag = TextDescriptions::LOCAL_DESCRIPTIONS;
2197
2198    AString mime;
2199    CHECK(buffer->meta()->findString("mime", &mime));
2200    CHECK(strcasecmp(mime.c_str(), MEDIA_MIMETYPE_TEXT_3GPP) == 0);
2201
2202    data = buffer->data();
2203    size = buffer->size();
2204
2205    Parcel parcel;
2206    if (size > 0) {
2207        CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
2208        flag |= TextDescriptions::IN_BAND_TEXT_3GPP;
2209        TextDescriptions::getParcelOfDescriptions(
2210                (const uint8_t *)data, size, flag, timeUs / 1000, &parcel);
2211    }
2212
2213    if ((parcel.dataSize() > 0)) {
2214        notifyListener(MEDIA_TIMED_TEXT, 0, 0, &parcel);
2215    } else {  // send an empty timed text
2216        notifyListener(MEDIA_TIMED_TEXT, 0, 0);
2217    }
2218}
2219////////////////////////////////////////////////////////////////////////////////
2220
2221sp<AMessage> NuPlayer::Source::getFormat(bool audio) {
2222    sp<MetaData> meta = getFormatMeta(audio);
2223
2224    if (meta == NULL) {
2225        return NULL;
2226    }
2227
2228    sp<AMessage> msg = new AMessage;
2229
2230    if(convertMetaDataToMessage(meta, &msg) == OK) {
2231        return msg;
2232    }
2233    return NULL;
2234}
2235
2236void NuPlayer::Source::notifyFlagsChanged(uint32_t flags) {
2237    sp<AMessage> notify = dupNotify();
2238    notify->setInt32("what", kWhatFlagsChanged);
2239    notify->setInt32("flags", flags);
2240    notify->post();
2241}
2242
2243void NuPlayer::Source::notifyVideoSizeChanged(const sp<AMessage> &format) {
2244    sp<AMessage> notify = dupNotify();
2245    notify->setInt32("what", kWhatVideoSizeChanged);
2246    notify->setMessage("format", format);
2247    notify->post();
2248}
2249
2250void NuPlayer::Source::notifyPrepared(status_t err) {
2251    sp<AMessage> notify = dupNotify();
2252    notify->setInt32("what", kWhatPrepared);
2253    notify->setInt32("err", err);
2254    notify->post();
2255}
2256
2257void NuPlayer::Source::onMessageReceived(const sp<AMessage> & /* msg */) {
2258    TRESPASS();
2259}
2260
2261}  // namespace android
2262