NuPlayer.cpp revision 02cb98d726b97d8e6dbb9c6c60d32a3cedc7f82d 
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, mSource->isStreaming(), 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, mSource->isStreaming(), 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), mSource->isStreaming(), streamType);
1292    if (mOffloadAudio) {
1293        flags |= Renderer::FLAG_OFFLOAD_AUDIO;
1294    }
1295
1296    sp<AMessage> notify = new AMessage(kWhatRendererNotify, this);
1297    ++mRendererGeneration;
1298    notify->setInt32("generation", mRendererGeneration);
1299    mRenderer = new Renderer(mAudioSink, notify, flags);
1300    mRendererLooper = new ALooper;
1301    mRendererLooper->setName("NuPlayerRenderer");
1302    mRendererLooper->start(false, false, ANDROID_PRIORITY_AUDIO);
1303    mRendererLooper->registerHandler(mRenderer);
1304
1305    status_t err = mRenderer->setPlaybackSettings(mPlaybackSettings);
1306    if (err != OK) {
1307        mSource->stop();
1308        notifyListener(MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, err);
1309        return;
1310    }
1311
1312    float rate = getFrameRate();
1313    if (rate > 0) {
1314        mRenderer->setVideoFrameRate(rate);
1315    }
1316
1317    if (mVideoDecoder != NULL) {
1318        mVideoDecoder->setRenderer(mRenderer);
1319    }
1320    if (mAudioDecoder != NULL) {
1321        mAudioDecoder->setRenderer(mRenderer);
1322    }
1323
1324    postScanSources();
1325}
1326
1327void NuPlayer::onPause() {
1328    if (mPaused) {
1329        return;
1330    }
1331    mPaused = true;
1332    if (mSource != NULL) {
1333        mSource->pause();
1334    } else {
1335        ALOGW("pause called when source is gone or not set");
1336    }
1337    if (mRenderer != NULL) {
1338        mRenderer->pause();
1339    } else {
1340        ALOGW("pause called when renderer is gone or not set");
1341    }
1342}
1343
1344bool NuPlayer::audioDecoderStillNeeded() {
1345    // Audio decoder is no longer needed if it's in shut/shutting down status.
1346    return ((mFlushingAudio != SHUT_DOWN) && (mFlushingAudio != SHUTTING_DOWN_DECODER));
1347}
1348
1349void NuPlayer::handleFlushComplete(bool audio, bool isDecoder) {
1350    // We wait for both the decoder flush and the renderer flush to complete
1351    // before entering either the FLUSHED or the SHUTTING_DOWN_DECODER state.
1352
1353    mFlushComplete[audio][isDecoder] = true;
1354    if (!mFlushComplete[audio][!isDecoder]) {
1355        return;
1356    }
1357
1358    FlushStatus *state = audio ? &mFlushingAudio : &mFlushingVideo;
1359    switch (*state) {
1360        case FLUSHING_DECODER:
1361        {
1362            *state = FLUSHED;
1363            break;
1364        }
1365
1366        case FLUSHING_DECODER_SHUTDOWN:
1367        {
1368            *state = SHUTTING_DOWN_DECODER;
1369
1370            ALOGV("initiating %s decoder shutdown", audio ? "audio" : "video");
1371            if (!audio) {
1372                // Widevine source reads must stop before releasing the video decoder.
1373                if (mSource != NULL && mSourceFlags & Source::FLAG_SECURE) {
1374                    mSource->stop();
1375                }
1376            }
1377            getDecoder(audio)->initiateShutdown();
1378            break;
1379        }
1380
1381        default:
1382            // decoder flush completes only occur in a flushing state.
1383            LOG_ALWAYS_FATAL_IF(isDecoder, "decoder flush in invalid state %d", *state);
1384            break;
1385    }
1386}
1387
1388void NuPlayer::finishFlushIfPossible() {
1389    if (mFlushingAudio != NONE && mFlushingAudio != FLUSHED
1390            && mFlushingAudio != SHUT_DOWN) {
1391        return;
1392    }
1393
1394    if (mFlushingVideo != NONE && mFlushingVideo != FLUSHED
1395            && mFlushingVideo != SHUT_DOWN) {
1396        return;
1397    }
1398
1399    ALOGV("both audio and video are flushed now.");
1400
1401    mFlushingAudio = NONE;
1402    mFlushingVideo = NONE;
1403
1404    clearFlushComplete();
1405
1406    processDeferredActions();
1407}
1408
1409void NuPlayer::postScanSources() {
1410    if (mScanSourcesPending) {
1411        return;
1412    }
1413
1414    sp<AMessage> msg = new AMessage(kWhatScanSources, this);
1415    msg->setInt32("generation", mScanSourcesGeneration);
1416    msg->post();
1417
1418    mScanSourcesPending = true;
1419}
1420
1421void NuPlayer::tryOpenAudioSinkForOffload(const sp<AMessage> &format, bool hasVideo) {
1422    // Note: This is called early in NuPlayer to determine whether offloading
1423    // is possible; otherwise the decoders call the renderer openAudioSink directly.
1424
1425    status_t err = mRenderer->openAudioSink(
1426            format, true /* offloadOnly */, hasVideo, AUDIO_OUTPUT_FLAG_NONE, &mOffloadAudio);
1427    if (err != OK) {
1428        // Any failure we turn off mOffloadAudio.
1429        mOffloadAudio = false;
1430    } else if (mOffloadAudio) {
1431        sp<MetaData> audioMeta =
1432                mSource->getFormatMeta(true /* audio */);
1433        sendMetaDataToHal(mAudioSink, audioMeta);
1434    }
1435}
1436
1437void NuPlayer::closeAudioSink() {
1438    mRenderer->closeAudioSink();
1439}
1440
1441status_t NuPlayer::instantiateDecoder(bool audio, sp<DecoderBase> *decoder) {
1442    if (*decoder != NULL) {
1443        return OK;
1444    }
1445
1446    sp<AMessage> format = mSource->getFormat(audio);
1447
1448    if (format == NULL) {
1449        return -EWOULDBLOCK;
1450    }
1451
1452    format->setInt32("priority", 0 /* realtime */);
1453
1454    if (!audio) {
1455        AString mime;
1456        CHECK(format->findString("mime", &mime));
1457
1458        sp<AMessage> ccNotify = new AMessage(kWhatClosedCaptionNotify, this);
1459        if (mCCDecoder == NULL) {
1460            mCCDecoder = new CCDecoder(ccNotify);
1461        }
1462
1463        if (mSourceFlags & Source::FLAG_SECURE) {
1464            format->setInt32("secure", true);
1465        }
1466
1467        if (mSourceFlags & Source::FLAG_PROTECTED) {
1468            format->setInt32("protected", true);
1469        }
1470
1471        float rate = getFrameRate();
1472        if (rate > 0) {
1473            format->setFloat("operating-rate", rate * mPlaybackSettings.mSpeed);
1474        }
1475    }
1476
1477    if (audio) {
1478        sp<AMessage> notify = new AMessage(kWhatAudioNotify, this);
1479        ++mAudioDecoderGeneration;
1480        notify->setInt32("generation", mAudioDecoderGeneration);
1481
1482        if (mOffloadAudio) {
1483            const bool hasVideo = (mSource->getFormat(false /*audio */) != NULL);
1484            format->setInt32("has-video", hasVideo);
1485            *decoder = new DecoderPassThrough(notify, mSource, mRenderer);
1486        } else {
1487            *decoder = new Decoder(notify, mSource, mRenderer);
1488        }
1489    } else {
1490        sp<AMessage> notify = new AMessage(kWhatVideoNotify, this);
1491        ++mVideoDecoderGeneration;
1492        notify->setInt32("generation", mVideoDecoderGeneration);
1493
1494        *decoder = new Decoder(
1495                notify, mSource, mRenderer, mSurface, mCCDecoder);
1496
1497        // enable FRC if high-quality AV sync is requested, even if not
1498        // directly queuing to display, as this will even improve textureview
1499        // playback.
1500        {
1501            char value[PROPERTY_VALUE_MAX];
1502            if (property_get("persist.sys.media.avsync", value, NULL) &&
1503                    (!strcmp("1", value) || !strcasecmp("true", value))) {
1504                format->setInt32("auto-frc", 1);
1505            }
1506        }
1507    }
1508    (*decoder)->init();
1509    (*decoder)->configure(format);
1510
1511    // allocate buffers to decrypt widevine source buffers
1512    if (!audio && (mSourceFlags & Source::FLAG_SECURE)) {
1513        Vector<sp<ABuffer> > inputBufs;
1514        CHECK_EQ((*decoder)->getInputBuffers(&inputBufs), (status_t)OK);
1515
1516        Vector<MediaBuffer *> mediaBufs;
1517        for (size_t i = 0; i < inputBufs.size(); i++) {
1518            const sp<ABuffer> &buffer = inputBufs[i];
1519            MediaBuffer *mbuf = new MediaBuffer(buffer->data(), buffer->size());
1520            mediaBufs.push(mbuf);
1521        }
1522
1523        status_t err = mSource->setBuffers(audio, mediaBufs);
1524        if (err != OK) {
1525            for (size_t i = 0; i < mediaBufs.size(); ++i) {
1526                mediaBufs[i]->release();
1527            }
1528            mediaBufs.clear();
1529            ALOGE("Secure source didn't support secure mediaBufs.");
1530            return err;
1531        }
1532    }
1533    return OK;
1534}
1535
1536void NuPlayer::updateVideoSize(
1537        const sp<AMessage> &inputFormat,
1538        const sp<AMessage> &outputFormat) {
1539    if (inputFormat == NULL) {
1540        ALOGW("Unknown video size, reporting 0x0!");
1541        notifyListener(MEDIA_SET_VIDEO_SIZE, 0, 0);
1542        return;
1543    }
1544
1545    int32_t displayWidth, displayHeight;
1546    if (outputFormat != NULL) {
1547        int32_t width, height;
1548        CHECK(outputFormat->findInt32("width", &width));
1549        CHECK(outputFormat->findInt32("height", &height));
1550
1551        int32_t cropLeft, cropTop, cropRight, cropBottom;
1552        CHECK(outputFormat->findRect(
1553                    "crop",
1554                    &cropLeft, &cropTop, &cropRight, &cropBottom));
1555
1556        displayWidth = cropRight - cropLeft + 1;
1557        displayHeight = cropBottom - cropTop + 1;
1558
1559        ALOGV("Video output format changed to %d x %d "
1560             "(crop: %d x %d @ (%d, %d))",
1561             width, height,
1562             displayWidth,
1563             displayHeight,
1564             cropLeft, cropTop);
1565    } else {
1566        CHECK(inputFormat->findInt32("width", &displayWidth));
1567        CHECK(inputFormat->findInt32("height", &displayHeight));
1568
1569        ALOGV("Video input format %d x %d", displayWidth, displayHeight);
1570    }
1571
1572    // Take into account sample aspect ratio if necessary:
1573    int32_t sarWidth, sarHeight;
1574    if (inputFormat->findInt32("sar-width", &sarWidth)
1575            && inputFormat->findInt32("sar-height", &sarHeight)) {
1576        ALOGV("Sample aspect ratio %d : %d", sarWidth, sarHeight);
1577
1578        displayWidth = (displayWidth * sarWidth) / sarHeight;
1579
1580        ALOGV("display dimensions %d x %d", displayWidth, displayHeight);
1581    }
1582
1583    int32_t rotationDegrees;
1584    if (!inputFormat->findInt32("rotation-degrees", &rotationDegrees)) {
1585        rotationDegrees = 0;
1586    }
1587
1588    if (rotationDegrees == 90 || rotationDegrees == 270) {
1589        int32_t tmp = displayWidth;
1590        displayWidth = displayHeight;
1591        displayHeight = tmp;
1592    }
1593
1594    notifyListener(
1595            MEDIA_SET_VIDEO_SIZE,
1596            displayWidth,
1597            displayHeight);
1598}
1599
1600void NuPlayer::notifyListener(int msg, int ext1, int ext2, const Parcel *in) {
1601    if (mDriver == NULL) {
1602        return;
1603    }
1604
1605    sp<NuPlayerDriver> driver = mDriver.promote();
1606
1607    if (driver == NULL) {
1608        return;
1609    }
1610
1611    driver->notifyListener(msg, ext1, ext2, in);
1612}
1613
1614void NuPlayer::flushDecoder(bool audio, bool needShutdown) {
1615    ALOGV("[%s] flushDecoder needShutdown=%d",
1616          audio ? "audio" : "video", needShutdown);
1617
1618    const sp<DecoderBase> &decoder = getDecoder(audio);
1619    if (decoder == NULL) {
1620        ALOGI("flushDecoder %s without decoder present",
1621             audio ? "audio" : "video");
1622        return;
1623    }
1624
1625    // Make sure we don't continue to scan sources until we finish flushing.
1626    ++mScanSourcesGeneration;
1627    if (mScanSourcesPending) {
1628        mDeferredActions.push_back(
1629                new SimpleAction(&NuPlayer::performScanSources));
1630        mScanSourcesPending = false;
1631    }
1632
1633    decoder->signalFlush();
1634
1635    FlushStatus newStatus =
1636        needShutdown ? FLUSHING_DECODER_SHUTDOWN : FLUSHING_DECODER;
1637
1638    mFlushComplete[audio][false /* isDecoder */] = (mRenderer == NULL);
1639    mFlushComplete[audio][true /* isDecoder */] = false;
1640    if (audio) {
1641        ALOGE_IF(mFlushingAudio != NONE,
1642                "audio flushDecoder() is called in state %d", mFlushingAudio);
1643        mFlushingAudio = newStatus;
1644    } else {
1645        ALOGE_IF(mFlushingVideo != NONE,
1646                "video flushDecoder() is called in state %d", mFlushingVideo);
1647        mFlushingVideo = newStatus;
1648    }
1649}
1650
1651void NuPlayer::queueDecoderShutdown(
1652        bool audio, bool video, const sp<AMessage> &reply) {
1653    ALOGI("queueDecoderShutdown audio=%d, video=%d", audio, video);
1654
1655    mDeferredActions.push_back(
1656            new FlushDecoderAction(
1657                audio ? FLUSH_CMD_SHUTDOWN : FLUSH_CMD_NONE,
1658                video ? FLUSH_CMD_SHUTDOWN : FLUSH_CMD_NONE));
1659
1660    mDeferredActions.push_back(
1661            new SimpleAction(&NuPlayer::performScanSources));
1662
1663    mDeferredActions.push_back(new PostMessageAction(reply));
1664
1665    processDeferredActions();
1666}
1667
1668status_t NuPlayer::setVideoScalingMode(int32_t mode) {
1669    mVideoScalingMode = mode;
1670    if (mSurface != NULL) {
1671        status_t ret = native_window_set_scaling_mode(mSurface.get(), mVideoScalingMode);
1672        if (ret != OK) {
1673            ALOGE("Failed to set scaling mode (%d): %s",
1674                -ret, strerror(-ret));
1675            return ret;
1676        }
1677    }
1678    return OK;
1679}
1680
1681status_t NuPlayer::getTrackInfo(Parcel* reply) const {
1682    sp<AMessage> msg = new AMessage(kWhatGetTrackInfo, this);
1683    msg->setPointer("reply", reply);
1684
1685    sp<AMessage> response;
1686    status_t err = msg->postAndAwaitResponse(&response);
1687    return err;
1688}
1689
1690status_t NuPlayer::getSelectedTrack(int32_t type, Parcel* reply) const {
1691    sp<AMessage> msg = new AMessage(kWhatGetSelectedTrack, this);
1692    msg->setPointer("reply", reply);
1693    msg->setInt32("type", type);
1694
1695    sp<AMessage> response;
1696    status_t err = msg->postAndAwaitResponse(&response);
1697    if (err == OK && response != NULL) {
1698        CHECK(response->findInt32("err", &err));
1699    }
1700    return err;
1701}
1702
1703status_t NuPlayer::selectTrack(size_t trackIndex, bool select, int64_t timeUs) {
1704    sp<AMessage> msg = new AMessage(kWhatSelectTrack, this);
1705    msg->setSize("trackIndex", trackIndex);
1706    msg->setInt32("select", select);
1707    msg->setInt64("timeUs", timeUs);
1708
1709    sp<AMessage> response;
1710    status_t err = msg->postAndAwaitResponse(&response);
1711
1712    if (err != OK) {
1713        return err;
1714    }
1715
1716    if (!response->findInt32("err", &err)) {
1717        err = OK;
1718    }
1719
1720    return err;
1721}
1722
1723status_t NuPlayer::getCurrentPosition(int64_t *mediaUs) {
1724    sp<Renderer> renderer = mRenderer;
1725    if (renderer == NULL) {
1726        return NO_INIT;
1727    }
1728
1729    return renderer->getCurrentPosition(mediaUs);
1730}
1731
1732void NuPlayer::getStats(int64_t *numFramesTotal, int64_t *numFramesDropped) {
1733    sp<DecoderBase> decoder = getDecoder(false /* audio */);
1734    if (decoder != NULL) {
1735        decoder->getStats(numFramesTotal, numFramesDropped);
1736    } else {
1737        *numFramesTotal = 0;
1738        *numFramesDropped = 0;
1739    }
1740}
1741
1742sp<MetaData> NuPlayer::getFileMeta() {
1743    return mSource->getFileFormatMeta();
1744}
1745
1746float NuPlayer::getFrameRate() {
1747    sp<MetaData> meta = mSource->getFormatMeta(false /* audio */);
1748    if (meta == NULL) {
1749        return 0;
1750    }
1751    int32_t rate;
1752    if (!meta->findInt32(kKeyFrameRate, &rate)) {
1753        // fall back to try file meta
1754        sp<MetaData> fileMeta = getFileMeta();
1755        if (fileMeta == NULL) {
1756            ALOGW("source has video meta but not file meta");
1757            return -1;
1758        }
1759        int32_t fileMetaRate;
1760        if (!fileMeta->findInt32(kKeyFrameRate, &fileMetaRate)) {
1761            return -1;
1762        }
1763        return fileMetaRate;
1764    }
1765    return rate;
1766}
1767
1768void NuPlayer::schedulePollDuration() {
1769    sp<AMessage> msg = new AMessage(kWhatPollDuration, this);
1770    msg->setInt32("generation", mPollDurationGeneration);
1771    msg->post();
1772}
1773
1774void NuPlayer::cancelPollDuration() {
1775    ++mPollDurationGeneration;
1776}
1777
1778void NuPlayer::processDeferredActions() {
1779    while (!mDeferredActions.empty()) {
1780        // We won't execute any deferred actions until we're no longer in
1781        // an intermediate state, i.e. one more more decoders are currently
1782        // flushing or shutting down.
1783
1784        if (mFlushingAudio != NONE || mFlushingVideo != NONE) {
1785            // We're currently flushing, postpone the reset until that's
1786            // completed.
1787
1788            ALOGV("postponing action mFlushingAudio=%d, mFlushingVideo=%d",
1789                  mFlushingAudio, mFlushingVideo);
1790
1791            break;
1792        }
1793
1794        sp<Action> action = *mDeferredActions.begin();
1795        mDeferredActions.erase(mDeferredActions.begin());
1796
1797        action->execute(this);
1798    }
1799}
1800
1801void NuPlayer::performSeek(int64_t seekTimeUs) {
1802    ALOGV("performSeek seekTimeUs=%lld us (%.2f secs)",
1803          (long long)seekTimeUs,
1804          seekTimeUs / 1E6);
1805
1806    if (mSource == NULL) {
1807        // This happens when reset occurs right before the loop mode
1808        // asynchronously seeks to the start of the stream.
1809        LOG_ALWAYS_FATAL_IF(mAudioDecoder != NULL || mVideoDecoder != NULL,
1810                "mSource is NULL and decoders not NULL audio(%p) video(%p)",
1811                mAudioDecoder.get(), mVideoDecoder.get());
1812        return;
1813    }
1814    mSource->seekTo(seekTimeUs);
1815    ++mTimedTextGeneration;
1816
1817    // everything's flushed, continue playback.
1818}
1819
1820void NuPlayer::performDecoderFlush(FlushCommand audio, FlushCommand video) {
1821    ALOGV("performDecoderFlush audio=%d, video=%d", audio, video);
1822
1823    if ((audio == FLUSH_CMD_NONE || mAudioDecoder == NULL)
1824            && (video == FLUSH_CMD_NONE || mVideoDecoder == NULL)) {
1825        return;
1826    }
1827
1828    if (audio != FLUSH_CMD_NONE && mAudioDecoder != NULL) {
1829        flushDecoder(true /* audio */, (audio == FLUSH_CMD_SHUTDOWN));
1830    }
1831
1832    if (video != FLUSH_CMD_NONE && mVideoDecoder != NULL) {
1833        flushDecoder(false /* audio */, (video == FLUSH_CMD_SHUTDOWN));
1834    }
1835}
1836
1837void NuPlayer::performReset() {
1838    ALOGV("performReset");
1839
1840    CHECK(mAudioDecoder == NULL);
1841    CHECK(mVideoDecoder == NULL);
1842
1843    cancelPollDuration();
1844
1845    ++mScanSourcesGeneration;
1846    mScanSourcesPending = false;
1847
1848    if (mRendererLooper != NULL) {
1849        if (mRenderer != NULL) {
1850            mRendererLooper->unregisterHandler(mRenderer->id());
1851        }
1852        mRendererLooper->stop();
1853        mRendererLooper.clear();
1854    }
1855    mRenderer.clear();
1856    ++mRendererGeneration;
1857
1858    if (mSource != NULL) {
1859        mSource->stop();
1860
1861        mSource.clear();
1862    }
1863
1864    if (mDriver != NULL) {
1865        sp<NuPlayerDriver> driver = mDriver.promote();
1866        if (driver != NULL) {
1867            driver->notifyResetComplete();
1868        }
1869    }
1870
1871    mStarted = false;
1872}
1873
1874void NuPlayer::performScanSources() {
1875    ALOGV("performScanSources");
1876
1877    if (!mStarted) {
1878        return;
1879    }
1880
1881    if (mAudioDecoder == NULL || mVideoDecoder == NULL) {
1882        postScanSources();
1883    }
1884}
1885
1886void NuPlayer::performSetSurface(const sp<Surface> &surface) {
1887    ALOGV("performSetSurface");
1888
1889    mSurface = surface;
1890
1891    // XXX - ignore error from setVideoScalingMode for now
1892    setVideoScalingMode(mVideoScalingMode);
1893
1894    if (mDriver != NULL) {
1895        sp<NuPlayerDriver> driver = mDriver.promote();
1896        if (driver != NULL) {
1897            driver->notifySetSurfaceComplete();
1898        }
1899    }
1900}
1901
1902void NuPlayer::performResumeDecoders(bool needNotify) {
1903    if (needNotify) {
1904        mResumePending = true;
1905        if (mVideoDecoder == NULL) {
1906            // if audio-only, we can notify seek complete now,
1907            // as the resume operation will be relatively fast.
1908            finishResume();
1909        }
1910    }
1911
1912    if (mVideoDecoder != NULL) {
1913        // When there is continuous seek, MediaPlayer will cache the seek
1914        // position, and send down new seek request when previous seek is
1915        // complete. Let's wait for at least one video output frame before
1916        // notifying seek complete, so that the video thumbnail gets updated
1917        // when seekbar is dragged.
1918        mVideoDecoder->signalResume(needNotify);
1919    }
1920
1921    if (mAudioDecoder != NULL) {
1922        mAudioDecoder->signalResume(false /* needNotify */);
1923    }
1924}
1925
1926void NuPlayer::finishResume() {
1927    if (mResumePending) {
1928        mResumePending = false;
1929        notifyDriverSeekComplete();
1930    }
1931}
1932
1933void NuPlayer::notifyDriverSeekComplete() {
1934    if (mDriver != NULL) {
1935        sp<NuPlayerDriver> driver = mDriver.promote();
1936        if (driver != NULL) {
1937            driver->notifySeekComplete();
1938        }
1939    }
1940}
1941
1942void NuPlayer::onSourceNotify(const sp<AMessage> &msg) {
1943    int32_t what;
1944    CHECK(msg->findInt32("what", &what));
1945
1946    switch (what) {
1947        case Source::kWhatInstantiateSecureDecoders:
1948        {
1949            if (mSource == NULL) {
1950                // This is a stale notification from a source that was
1951                // asynchronously preparing when the client called reset().
1952                // We handled the reset, the source is gone.
1953                break;
1954            }
1955
1956            sp<AMessage> reply;
1957            CHECK(msg->findMessage("reply", &reply));
1958            status_t err = onInstantiateSecureDecoders();
1959            reply->setInt32("err", err);
1960            reply->post();
1961            break;
1962        }
1963
1964        case Source::kWhatPrepared:
1965        {
1966            if (mSource == NULL) {
1967                // This is a stale notification from a source that was
1968                // asynchronously preparing when the client called reset().
1969                // We handled the reset, the source is gone.
1970                break;
1971            }
1972
1973            int32_t err;
1974            CHECK(msg->findInt32("err", &err));
1975
1976            if (err != OK) {
1977                // shut down potential secure codecs in case client never calls reset
1978                mDeferredActions.push_back(
1979                        new FlushDecoderAction(FLUSH_CMD_SHUTDOWN /* audio */,
1980                                               FLUSH_CMD_SHUTDOWN /* video */));
1981                processDeferredActions();
1982            }
1983
1984            sp<NuPlayerDriver> driver = mDriver.promote();
1985            if (driver != NULL) {
1986                // notify duration first, so that it's definitely set when
1987                // the app received the "prepare complete" callback.
1988                int64_t durationUs;
1989                if (mSource->getDuration(&durationUs) == OK) {
1990                    driver->notifyDuration(durationUs);
1991                }
1992                driver->notifyPrepareCompleted(err);
1993            }
1994
1995            break;
1996        }
1997
1998        case Source::kWhatFlagsChanged:
1999        {
2000            uint32_t flags;
2001            CHECK(msg->findInt32("flags", (int32_t *)&flags));
2002
2003            sp<NuPlayerDriver> driver = mDriver.promote();
2004            if (driver != NULL) {
2005                if ((flags & NuPlayer::Source::FLAG_CAN_SEEK) == 0) {
2006                    driver->notifyListener(
2007                            MEDIA_INFO, MEDIA_INFO_NOT_SEEKABLE, 0);
2008                }
2009                driver->notifyFlagsChanged(flags);
2010            }
2011
2012            if ((mSourceFlags & Source::FLAG_DYNAMIC_DURATION)
2013                    && (!(flags & Source::FLAG_DYNAMIC_DURATION))) {
2014                cancelPollDuration();
2015            } else if (!(mSourceFlags & Source::FLAG_DYNAMIC_DURATION)
2016                    && (flags & Source::FLAG_DYNAMIC_DURATION)
2017                    && (mAudioDecoder != NULL || mVideoDecoder != NULL)) {
2018                schedulePollDuration();
2019            }
2020
2021            mSourceFlags = flags;
2022            break;
2023        }
2024
2025        case Source::kWhatVideoSizeChanged:
2026        {
2027            sp<AMessage> format;
2028            CHECK(msg->findMessage("format", &format));
2029
2030            updateVideoSize(format);
2031            break;
2032        }
2033
2034        case Source::kWhatBufferingUpdate:
2035        {
2036            int32_t percentage;
2037            CHECK(msg->findInt32("percentage", &percentage));
2038
2039            notifyListener(MEDIA_BUFFERING_UPDATE, percentage, 0);
2040            break;
2041        }
2042
2043        case Source::kWhatPauseOnBufferingStart:
2044        {
2045            // ignore if not playing
2046            if (mStarted) {
2047                ALOGI("buffer low, pausing...");
2048
2049                mPausedForBuffering = true;
2050                onPause();
2051            }
2052            // fall-thru
2053        }
2054
2055        case Source::kWhatBufferingStart:
2056        {
2057            notifyListener(MEDIA_INFO, MEDIA_INFO_BUFFERING_START, 0);
2058            break;
2059        }
2060
2061        case Source::kWhatResumeOnBufferingEnd:
2062        {
2063            // ignore if not playing
2064            if (mStarted) {
2065                ALOGI("buffer ready, resuming...");
2066
2067                mPausedForBuffering = false;
2068
2069                // do not resume yet if client didn't unpause
2070                if (!mPausedByClient) {
2071                    onResume();
2072                }
2073            }
2074            // fall-thru
2075        }
2076
2077        case Source::kWhatBufferingEnd:
2078        {
2079            notifyListener(MEDIA_INFO, MEDIA_INFO_BUFFERING_END, 0);
2080            break;
2081        }
2082
2083        case Source::kWhatCacheStats:
2084        {
2085            int32_t kbps;
2086            CHECK(msg->findInt32("bandwidth", &kbps));
2087
2088            notifyListener(MEDIA_INFO, MEDIA_INFO_NETWORK_BANDWIDTH, kbps);
2089            break;
2090        }
2091
2092        case Source::kWhatSubtitleData:
2093        {
2094            sp<ABuffer> buffer;
2095            CHECK(msg->findBuffer("buffer", &buffer));
2096
2097            sendSubtitleData(buffer, 0 /* baseIndex */);
2098            break;
2099        }
2100
2101        case Source::kWhatTimedMetaData:
2102        {
2103            sp<ABuffer> buffer;
2104            if (!msg->findBuffer("buffer", &buffer)) {
2105                notifyListener(MEDIA_INFO, MEDIA_INFO_METADATA_UPDATE, 0);
2106            } else {
2107                sendTimedMetaData(buffer);
2108            }
2109            break;
2110        }
2111
2112        case Source::kWhatTimedTextData:
2113        {
2114            int32_t generation;
2115            if (msg->findInt32("generation", &generation)
2116                    && generation != mTimedTextGeneration) {
2117                break;
2118            }
2119
2120            sp<ABuffer> buffer;
2121            CHECK(msg->findBuffer("buffer", &buffer));
2122
2123            sp<NuPlayerDriver> driver = mDriver.promote();
2124            if (driver == NULL) {
2125                break;
2126            }
2127
2128            int posMs;
2129            int64_t timeUs, posUs;
2130            driver->getCurrentPosition(&posMs);
2131            posUs = posMs * 1000;
2132            CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
2133
2134            if (posUs < timeUs) {
2135                if (!msg->findInt32("generation", &generation)) {
2136                    msg->setInt32("generation", mTimedTextGeneration);
2137                }
2138                msg->post(timeUs - posUs);
2139            } else {
2140                sendTimedTextData(buffer);
2141            }
2142            break;
2143        }
2144
2145        case Source::kWhatQueueDecoderShutdown:
2146        {
2147            int32_t audio, video;
2148            CHECK(msg->findInt32("audio", &audio));
2149            CHECK(msg->findInt32("video", &video));
2150
2151            sp<AMessage> reply;
2152            CHECK(msg->findMessage("reply", &reply));
2153
2154            queueDecoderShutdown(audio, video, reply);
2155            break;
2156        }
2157
2158        case Source::kWhatDrmNoLicense:
2159        {
2160            notifyListener(MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, ERROR_DRM_NO_LICENSE);
2161            break;
2162        }
2163
2164        default:
2165            TRESPASS();
2166    }
2167}
2168
2169void NuPlayer::onClosedCaptionNotify(const sp<AMessage> &msg) {
2170    int32_t what;
2171    CHECK(msg->findInt32("what", &what));
2172
2173    switch (what) {
2174        case NuPlayer::CCDecoder::kWhatClosedCaptionData:
2175        {
2176            sp<ABuffer> buffer;
2177            CHECK(msg->findBuffer("buffer", &buffer));
2178
2179            size_t inbandTracks = 0;
2180            if (mSource != NULL) {
2181                inbandTracks = mSource->getTrackCount();
2182            }
2183
2184            sendSubtitleData(buffer, inbandTracks);
2185            break;
2186        }
2187
2188        case NuPlayer::CCDecoder::kWhatTrackAdded:
2189        {
2190            notifyListener(MEDIA_INFO, MEDIA_INFO_METADATA_UPDATE, 0);
2191
2192            break;
2193        }
2194
2195        default:
2196            TRESPASS();
2197    }
2198
2199
2200}
2201
2202void NuPlayer::sendSubtitleData(const sp<ABuffer> &buffer, int32_t baseIndex) {
2203    int32_t trackIndex;
2204    int64_t timeUs, durationUs;
2205    CHECK(buffer->meta()->findInt32("trackIndex", &trackIndex));
2206    CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
2207    CHECK(buffer->meta()->findInt64("durationUs", &durationUs));
2208
2209    Parcel in;
2210    in.writeInt32(trackIndex + baseIndex);
2211    in.writeInt64(timeUs);
2212    in.writeInt64(durationUs);
2213    in.writeInt32(buffer->size());
2214    in.writeInt32(buffer->size());
2215    in.write(buffer->data(), buffer->size());
2216
2217    notifyListener(MEDIA_SUBTITLE_DATA, 0, 0, &in);
2218}
2219
2220void NuPlayer::sendTimedMetaData(const sp<ABuffer> &buffer) {
2221    int64_t timeUs;
2222    CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
2223
2224    Parcel in;
2225    in.writeInt64(timeUs);
2226    in.writeInt32(buffer->size());
2227    in.writeInt32(buffer->size());
2228    in.write(buffer->data(), buffer->size());
2229
2230    notifyListener(MEDIA_META_DATA, 0, 0, &in);
2231}
2232
2233void NuPlayer::sendTimedTextData(const sp<ABuffer> &buffer) {
2234    const void *data;
2235    size_t size = 0;
2236    int64_t timeUs;
2237    int32_t flag = TextDescriptions::LOCAL_DESCRIPTIONS;
2238
2239    AString mime;
2240    CHECK(buffer->meta()->findString("mime", &mime));
2241    CHECK(strcasecmp(mime.c_str(), MEDIA_MIMETYPE_TEXT_3GPP) == 0);
2242
2243    data = buffer->data();
2244    size = buffer->size();
2245
2246    Parcel parcel;
2247    if (size > 0) {
2248        CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
2249        flag |= TextDescriptions::IN_BAND_TEXT_3GPP;
2250        TextDescriptions::getParcelOfDescriptions(
2251                (const uint8_t *)data, size, flag, timeUs / 1000, &parcel);
2252    }
2253
2254    if ((parcel.dataSize() > 0)) {
2255        notifyListener(MEDIA_TIMED_TEXT, 0, 0, &parcel);
2256    } else {  // send an empty timed text
2257        notifyListener(MEDIA_TIMED_TEXT, 0, 0);
2258    }
2259}
2260////////////////////////////////////////////////////////////////////////////////
2261
2262sp<AMessage> NuPlayer::Source::getFormat(bool audio) {
2263    sp<MetaData> meta = getFormatMeta(audio);
2264
2265    if (meta == NULL) {
2266        return NULL;
2267    }
2268
2269    sp<AMessage> msg = new AMessage;
2270
2271    if(convertMetaDataToMessage(meta, &msg) == OK) {
2272        return msg;
2273    }
2274    return NULL;
2275}
2276
2277void NuPlayer::Source::notifyFlagsChanged(uint32_t flags) {
2278    sp<AMessage> notify = dupNotify();
2279    notify->setInt32("what", kWhatFlagsChanged);
2280    notify->setInt32("flags", flags);
2281    notify->post();
2282}
2283
2284void NuPlayer::Source::notifyVideoSizeChanged(const sp<AMessage> &format) {
2285    sp<AMessage> notify = dupNotify();
2286    notify->setInt32("what", kWhatVideoSizeChanged);
2287    notify->setMessage("format", format);
2288    notify->post();
2289}
2290
2291void NuPlayer::Source::notifyPrepared(status_t err) {
2292    sp<AMessage> notify = dupNotify();
2293    notify->setInt32("what", kWhatPrepared);
2294    notify->setInt32("err", err);
2295    notify->post();
2296}
2297
2298void NuPlayer::Source::notifyInstantiateSecureDecoders(const sp<AMessage> &reply) {
2299    sp<AMessage> notify = dupNotify();
2300    notify->setInt32("what", kWhatInstantiateSecureDecoders);
2301    notify->setMessage("reply", reply);
2302    notify->post();
2303}
2304
2305void NuPlayer::Source::onMessageReceived(const sp<AMessage> & /* msg */) {
2306    TRESPASS();
2307}
2308
2309}  // namespace android
2310