NuPlayer.cpp revision a73d9e0b3d171d2bfcd9eb07df9d6d36ae74df57 
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      mVideoIsAVC(false),
155      mOffloadAudio(false),
156      mCurrentOffloadInfo(AUDIO_INFO_INITIALIZER),
157      mAudioDecoderGeneration(0),
158      mVideoDecoderGeneration(0),
159      mRendererGeneration(0),
160      mAudioEOS(false),
161      mVideoEOS(false),
162      mScanSourcesPending(false),
163      mScanSourcesGeneration(0),
164      mPollDurationGeneration(0),
165      mTimedTextGeneration(0),
166      mTimeDiscontinuityPending(false),
167      mFlushingAudio(NONE),
168      mFlushingVideo(NONE),
169      mSkipRenderingAudioUntilMediaTimeUs(-1ll),
170      mSkipRenderingVideoUntilMediaTimeUs(-1ll),
171      mNumFramesTotal(0ll),
172      mNumFramesDropped(0ll),
173      mVideoScalingMode(NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW),
174      mStarted(false) {
175    clearFlushComplete();
176}
177
178NuPlayer::~NuPlayer() {
179}
180
181void NuPlayer::setUID(uid_t uid) {
182    mUIDValid = true;
183    mUID = uid;
184}
185
186void NuPlayer::setDriver(const wp<NuPlayerDriver> &driver) {
187    mDriver = driver;
188}
189
190void NuPlayer::setDataSourceAsync(const sp<IStreamSource> &source) {
191    sp<AMessage> msg = new AMessage(kWhatSetDataSource, id());
192
193    sp<AMessage> notify = new AMessage(kWhatSourceNotify, id());
194
195    msg->setObject("source", new StreamingSource(notify, source));
196    msg->post();
197}
198
199static bool IsHTTPLiveURL(const char *url) {
200    if (!strncasecmp("http://", url, 7)
201            || !strncasecmp("https://", url, 8)
202            || !strncasecmp("file://", url, 7)) {
203        size_t len = strlen(url);
204        if (len >= 5 && !strcasecmp(".m3u8", &url[len - 5])) {
205            return true;
206        }
207
208        if (strstr(url,"m3u8")) {
209            return true;
210        }
211    }
212
213    return false;
214}
215
216void NuPlayer::setDataSourceAsync(
217        const sp<IMediaHTTPService> &httpService,
218        const char *url,
219        const KeyedVector<String8, String8> *headers) {
220
221    sp<AMessage> msg = new AMessage(kWhatSetDataSource, id());
222    size_t len = strlen(url);
223
224    sp<AMessage> notify = new AMessage(kWhatSourceNotify, id());
225
226    sp<Source> source;
227    if (IsHTTPLiveURL(url)) {
228        source = new HTTPLiveSource(notify, httpService, url, headers);
229    } else if (!strncasecmp(url, "rtsp://", 7)) {
230        source = new RTSPSource(
231                notify, httpService, url, headers, mUIDValid, mUID);
232    } else if ((!strncasecmp(url, "http://", 7)
233                || !strncasecmp(url, "https://", 8))
234                    && ((len >= 4 && !strcasecmp(".sdp", &url[len - 4]))
235                    || strstr(url, ".sdp?"))) {
236        source = new RTSPSource(
237                notify, httpService, url, headers, mUIDValid, mUID, true);
238    } else {
239        sp<GenericSource> genericSource =
240                new GenericSource(notify, mUIDValid, mUID);
241        // Don't set FLAG_SECURE on mSourceFlags here for widevine.
242        // The correct flags will be updated in Source::kWhatFlagsChanged
243        // handler when  GenericSource is prepared.
244
245        status_t err = genericSource->setDataSource(httpService, url, headers);
246
247        if (err == OK) {
248            source = genericSource;
249        } else {
250            ALOGE("Failed to set data source!");
251        }
252    }
253    msg->setObject("source", source);
254    msg->post();
255}
256
257void NuPlayer::setDataSourceAsync(int fd, int64_t offset, int64_t length) {
258    sp<AMessage> msg = new AMessage(kWhatSetDataSource, id());
259
260    sp<AMessage> notify = new AMessage(kWhatSourceNotify, id());
261
262    sp<GenericSource> source =
263            new GenericSource(notify, mUIDValid, mUID);
264
265    status_t err = source->setDataSource(fd, offset, length);
266
267    if (err != OK) {
268        ALOGE("Failed to set data source!");
269        source = NULL;
270    }
271
272    msg->setObject("source", source);
273    msg->post();
274}
275
276void NuPlayer::prepareAsync() {
277    (new AMessage(kWhatPrepare, id()))->post();
278}
279
280void NuPlayer::setVideoSurfaceTextureAsync(
281        const sp<IGraphicBufferProducer> &bufferProducer) {
282    sp<AMessage> msg = new AMessage(kWhatSetVideoNativeWindow, id());
283
284    if (bufferProducer == NULL) {
285        msg->setObject("native-window", NULL);
286    } else {
287        msg->setObject(
288                "native-window",
289                new NativeWindowWrapper(
290                    new Surface(bufferProducer, true /* controlledByApp */)));
291    }
292
293    msg->post();
294}
295
296void NuPlayer::setAudioSink(const sp<MediaPlayerBase::AudioSink> &sink) {
297    sp<AMessage> msg = new AMessage(kWhatSetAudioSink, id());
298    msg->setObject("sink", sink);
299    msg->post();
300}
301
302void NuPlayer::start() {
303    (new AMessage(kWhatStart, id()))->post();
304}
305
306void NuPlayer::pause() {
307    (new AMessage(kWhatPause, id()))->post();
308}
309
310void NuPlayer::resume() {
311    (new AMessage(kWhatResume, id()))->post();
312}
313
314void NuPlayer::resetAsync() {
315    if (mSource != NULL) {
316        // During a reset, the data source might be unresponsive already, we need to
317        // disconnect explicitly so that reads exit promptly.
318        // We can't queue the disconnect request to the looper, as it might be
319        // queued behind a stuck read and never gets processed.
320        // Doing a disconnect outside the looper to allows the pending reads to exit
321        // (either successfully or with error).
322        mSource->disconnect();
323    }
324
325    (new AMessage(kWhatReset, id()))->post();
326}
327
328void NuPlayer::seekToAsync(int64_t seekTimeUs, bool needNotify) {
329    sp<AMessage> msg = new AMessage(kWhatSeek, id());
330    msg->setInt64("seekTimeUs", seekTimeUs);
331    msg->setInt32("needNotify", needNotify);
332    msg->post();
333}
334
335
336void NuPlayer::writeTrackInfo(
337        Parcel* reply, const sp<AMessage> format) const {
338    int32_t trackType;
339    CHECK(format->findInt32("type", &trackType));
340
341    AString lang;
342    CHECK(format->findString("language", &lang));
343
344    reply->writeInt32(2); // write something non-zero
345    reply->writeInt32(trackType);
346    reply->writeString16(String16(lang.c_str()));
347
348    if (trackType == MEDIA_TRACK_TYPE_SUBTITLE) {
349        AString mime;
350        CHECK(format->findString("mime", &mime));
351
352        int32_t isAuto, isDefault, isForced;
353        CHECK(format->findInt32("auto", &isAuto));
354        CHECK(format->findInt32("default", &isDefault));
355        CHECK(format->findInt32("forced", &isForced));
356
357        reply->writeString16(String16(mime.c_str()));
358        reply->writeInt32(isAuto);
359        reply->writeInt32(isDefault);
360        reply->writeInt32(isForced);
361    }
362}
363
364void NuPlayer::onMessageReceived(const sp<AMessage> &msg) {
365    switch (msg->what()) {
366        case kWhatSetDataSource:
367        {
368            ALOGV("kWhatSetDataSource");
369
370            CHECK(mSource == NULL);
371
372            status_t err = OK;
373            sp<RefBase> obj;
374            CHECK(msg->findObject("source", &obj));
375            if (obj != NULL) {
376                mSource = static_cast<Source *>(obj.get());
377            } else {
378                err = UNKNOWN_ERROR;
379            }
380
381            CHECK(mDriver != NULL);
382            sp<NuPlayerDriver> driver = mDriver.promote();
383            if (driver != NULL) {
384                driver->notifySetDataSourceCompleted(err);
385            }
386            break;
387        }
388
389        case kWhatPrepare:
390        {
391            mSource->prepareAsync();
392            break;
393        }
394
395        case kWhatGetTrackInfo:
396        {
397            uint32_t replyID;
398            CHECK(msg->senderAwaitsResponse(&replyID));
399
400            Parcel* reply;
401            CHECK(msg->findPointer("reply", (void**)&reply));
402
403            size_t inbandTracks = 0;
404            if (mSource != NULL) {
405                inbandTracks = mSource->getTrackCount();
406            }
407
408            size_t ccTracks = 0;
409            if (mCCDecoder != NULL) {
410                ccTracks = mCCDecoder->getTrackCount();
411            }
412
413            // total track count
414            reply->writeInt32(inbandTracks + ccTracks);
415
416            // write inband tracks
417            for (size_t i = 0; i < inbandTracks; ++i) {
418                writeTrackInfo(reply, mSource->getTrackInfo(i));
419            }
420
421            // write CC track
422            for (size_t i = 0; i < ccTracks; ++i) {
423                writeTrackInfo(reply, mCCDecoder->getTrackInfo(i));
424            }
425
426            sp<AMessage> response = new AMessage;
427            response->postReply(replyID);
428            break;
429        }
430
431        case kWhatGetSelectedTrack:
432        {
433            status_t err = INVALID_OPERATION;
434            if (mSource != NULL) {
435                err = OK;
436
437                int32_t type32;
438                CHECK(msg->findInt32("type", (int32_t*)&type32));
439                media_track_type type = (media_track_type)type32;
440                ssize_t selectedTrack = mSource->getSelectedTrack(type);
441
442                Parcel* reply;
443                CHECK(msg->findPointer("reply", (void**)&reply));
444                reply->writeInt32(selectedTrack);
445            }
446
447            sp<AMessage> response = new AMessage;
448            response->setInt32("err", err);
449
450            uint32_t replyID;
451            CHECK(msg->senderAwaitsResponse(&replyID));
452            response->postReply(replyID);
453            break;
454        }
455
456        case kWhatSelectTrack:
457        {
458            uint32_t replyID;
459            CHECK(msg->senderAwaitsResponse(&replyID));
460
461            size_t trackIndex;
462            int32_t select;
463            CHECK(msg->findSize("trackIndex", &trackIndex));
464            CHECK(msg->findInt32("select", &select));
465
466            status_t err = INVALID_OPERATION;
467
468            size_t inbandTracks = 0;
469            if (mSource != NULL) {
470                inbandTracks = mSource->getTrackCount();
471            }
472            size_t ccTracks = 0;
473            if (mCCDecoder != NULL) {
474                ccTracks = mCCDecoder->getTrackCount();
475            }
476
477            if (trackIndex < inbandTracks) {
478                err = mSource->selectTrack(trackIndex, select);
479
480                if (!select && err == OK) {
481                    int32_t type;
482                    sp<AMessage> info = mSource->getTrackInfo(trackIndex);
483                    if (info != NULL
484                            && info->findInt32("type", &type)
485                            && type == MEDIA_TRACK_TYPE_TIMEDTEXT) {
486                        ++mTimedTextGeneration;
487                    }
488                }
489            } else {
490                trackIndex -= inbandTracks;
491
492                if (trackIndex < ccTracks) {
493                    err = mCCDecoder->selectTrack(trackIndex, select);
494                }
495            }
496
497            sp<AMessage> response = new AMessage;
498            response->setInt32("err", err);
499
500            response->postReply(replyID);
501            break;
502        }
503
504        case kWhatPollDuration:
505        {
506            int32_t generation;
507            CHECK(msg->findInt32("generation", &generation));
508
509            if (generation != mPollDurationGeneration) {
510                // stale
511                break;
512            }
513
514            int64_t durationUs;
515            if (mDriver != NULL && mSource->getDuration(&durationUs) == OK) {
516                sp<NuPlayerDriver> driver = mDriver.promote();
517                if (driver != NULL) {
518                    driver->notifyDuration(durationUs);
519                }
520            }
521
522            msg->post(1000000ll);  // poll again in a second.
523            break;
524        }
525
526        case kWhatSetVideoNativeWindow:
527        {
528            ALOGV("kWhatSetVideoNativeWindow");
529
530            mDeferredActions.push_back(
531                    new ShutdownDecoderAction(
532                        false /* audio */, true /* video */));
533
534            sp<RefBase> obj;
535            CHECK(msg->findObject("native-window", &obj));
536
537            mDeferredActions.push_back(
538                    new SetSurfaceAction(
539                        static_cast<NativeWindowWrapper *>(obj.get())));
540
541            if (obj != NULL) {
542                if (mStarted && mSource->getFormat(false /* audio */) != NULL) {
543                    // Issue a seek to refresh the video screen only if started otherwise
544                    // the extractor may not yet be started and will assert.
545                    // If the video decoder is not set (perhaps audio only in this case)
546                    // do not perform a seek as it is not needed.
547                    int64_t currentPositionUs = 0;
548                    if (getCurrentPosition(&currentPositionUs) == OK) {
549                        mDeferredActions.push_back(
550                                new SeekAction(currentPositionUs, false /* needNotify */));
551                    }
552                }
553
554                // If there is a new surface texture, instantiate decoders
555                // again if possible.
556                mDeferredActions.push_back(
557                        new SimpleAction(&NuPlayer::performScanSources));
558            }
559
560            processDeferredActions();
561            break;
562        }
563
564        case kWhatSetAudioSink:
565        {
566            ALOGV("kWhatSetAudioSink");
567
568            sp<RefBase> obj;
569            CHECK(msg->findObject("sink", &obj));
570
571            mAudioSink = static_cast<MediaPlayerBase::AudioSink *>(obj.get());
572            break;
573        }
574
575        case kWhatStart:
576        {
577            ALOGV("kWhatStart");
578
579            mVideoIsAVC = false;
580            mOffloadAudio = false;
581            mAudioEOS = false;
582            mVideoEOS = false;
583            mSkipRenderingAudioUntilMediaTimeUs = -1;
584            mSkipRenderingVideoUntilMediaTimeUs = -1;
585            mNumFramesTotal = 0;
586            mNumFramesDropped = 0;
587            mStarted = true;
588
589            /* instantiate decoders now for secure playback */
590            if (mSourceFlags & Source::FLAG_SECURE) {
591                if (mNativeWindow != NULL) {
592                    instantiateDecoder(false, &mVideoDecoder);
593                }
594
595                if (mAudioSink != NULL) {
596                    instantiateDecoder(true, &mAudioDecoder);
597                }
598            }
599
600            mSource->start();
601
602            uint32_t flags = 0;
603
604            if (mSource->isRealTime()) {
605                flags |= Renderer::FLAG_REAL_TIME;
606            }
607
608            sp<MetaData> audioMeta = mSource->getFormatMeta(true /* audio */);
609            audio_stream_type_t streamType = AUDIO_STREAM_MUSIC;
610            if (mAudioSink != NULL) {
611                streamType = mAudioSink->getAudioStreamType();
612            }
613
614            sp<AMessage> videoFormat = mSource->getFormat(false /* audio */);
615
616            mOffloadAudio =
617                canOffloadStream(audioMeta, (videoFormat != NULL),
618                                 true /* is_streaming */, streamType);
619            if (mOffloadAudio) {
620                flags |= Renderer::FLAG_OFFLOAD_AUDIO;
621            }
622
623            sp<AMessage> notify = new AMessage(kWhatRendererNotify, id());
624            ++mRendererGeneration;
625            notify->setInt32("generation", mRendererGeneration);
626            mRenderer = new Renderer(mAudioSink, notify, flags);
627
628            mRendererLooper = new ALooper;
629            mRendererLooper->setName("NuPlayerRenderer");
630            mRendererLooper->start(false, false, ANDROID_PRIORITY_AUDIO);
631            mRendererLooper->registerHandler(mRenderer);
632
633            sp<MetaData> meta = getFileMeta();
634            int32_t rate;
635            if (meta != NULL
636                    && meta->findInt32(kKeyFrameRate, &rate) && rate > 0) {
637                mRenderer->setVideoFrameRate(rate);
638            }
639
640            postScanSources();
641            break;
642        }
643
644        case kWhatScanSources:
645        {
646            int32_t generation;
647            CHECK(msg->findInt32("generation", &generation));
648            if (generation != mScanSourcesGeneration) {
649                // Drop obsolete msg.
650                break;
651            }
652
653            mScanSourcesPending = false;
654
655            ALOGV("scanning sources haveAudio=%d, haveVideo=%d",
656                 mAudioDecoder != NULL, mVideoDecoder != NULL);
657
658            bool mHadAnySourcesBefore =
659                (mAudioDecoder != NULL) || (mVideoDecoder != NULL);
660
661            // initialize video before audio because successful initialization of
662            // video may change deep buffer mode of audio.
663            if (mNativeWindow != NULL) {
664                instantiateDecoder(false, &mVideoDecoder);
665            }
666
667            if (mAudioSink != NULL) {
668                if (mOffloadAudio) {
669                    // open audio sink early under offload mode.
670                    sp<AMessage> format = mSource->getFormat(true /*audio*/);
671                    openAudioSink(format, true /*offloadOnly*/);
672                }
673                instantiateDecoder(true, &mAudioDecoder);
674            }
675
676            if (!mHadAnySourcesBefore
677                    && (mAudioDecoder != NULL || mVideoDecoder != NULL)) {
678                // This is the first time we've found anything playable.
679
680                if (mSourceFlags & Source::FLAG_DYNAMIC_DURATION) {
681                    schedulePollDuration();
682                }
683            }
684
685            status_t err;
686            if ((err = mSource->feedMoreTSData()) != OK) {
687                if (mAudioDecoder == NULL && mVideoDecoder == NULL) {
688                    // We're not currently decoding anything (no audio or
689                    // video tracks found) and we just ran out of input data.
690
691                    if (err == ERROR_END_OF_STREAM) {
692                        notifyListener(MEDIA_PLAYBACK_COMPLETE, 0, 0);
693                    } else {
694                        notifyListener(MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, err);
695                    }
696                }
697                break;
698            }
699
700            if ((mAudioDecoder == NULL && mAudioSink != NULL)
701                    || (mVideoDecoder == NULL && mNativeWindow != NULL)) {
702                msg->post(100000ll);
703                mScanSourcesPending = true;
704            }
705            break;
706        }
707
708        case kWhatVideoNotify:
709        case kWhatAudioNotify:
710        {
711            bool audio = msg->what() == kWhatAudioNotify;
712
713            int32_t currentDecoderGeneration =
714                (audio? mAudioDecoderGeneration : mVideoDecoderGeneration);
715            int32_t requesterGeneration = currentDecoderGeneration - 1;
716            CHECK(msg->findInt32("generation", &requesterGeneration));
717
718            if (requesterGeneration != currentDecoderGeneration) {
719                ALOGV("got message from old %s decoder, generation(%d:%d)",
720                        audio ? "audio" : "video", requesterGeneration,
721                        currentDecoderGeneration);
722                sp<AMessage> reply;
723                if (!(msg->findMessage("reply", &reply))) {
724                    return;
725                }
726
727                reply->setInt32("err", INFO_DISCONTINUITY);
728                reply->post();
729                return;
730            }
731
732            int32_t what;
733            CHECK(msg->findInt32("what", &what));
734
735            if (what == Decoder::kWhatFillThisBuffer) {
736                status_t err = feedDecoderInputData(
737                        audio, msg);
738
739                if (err == -EWOULDBLOCK) {
740                    if (mSource->feedMoreTSData() == OK) {
741                        msg->post(10 * 1000ll);
742                    }
743                }
744            } else if (what == Decoder::kWhatEOS) {
745                int32_t err;
746                CHECK(msg->findInt32("err", &err));
747
748                if (err == ERROR_END_OF_STREAM) {
749                    ALOGV("got %s decoder EOS", audio ? "audio" : "video");
750                } else {
751                    ALOGV("got %s decoder EOS w/ error %d",
752                         audio ? "audio" : "video",
753                         err);
754                }
755
756                mRenderer->queueEOS(audio, err);
757            } else if (what == Decoder::kWhatFlushCompleted) {
758                ALOGV("decoder %s flush completed", audio ? "audio" : "video");
759
760                handleFlushComplete(audio, true /* isDecoder */);
761                finishFlushIfPossible();
762            } else if (what == Decoder::kWhatOutputFormatChanged) {
763                sp<AMessage> format;
764                CHECK(msg->findMessage("format", &format));
765
766                if (audio) {
767                    openAudioSink(format, false /*offloadOnly*/);
768                } else {
769                    // video
770                    sp<AMessage> inputFormat =
771                            mSource->getFormat(false /* audio */);
772
773                    updateVideoSize(inputFormat, format);
774                }
775            } else if (what == Decoder::kWhatShutdownCompleted) {
776                ALOGV("%s shutdown completed", audio ? "audio" : "video");
777                if (audio) {
778                    mAudioDecoder.clear();
779                    ++mAudioDecoderGeneration;
780
781                    CHECK_EQ((int)mFlushingAudio, (int)SHUTTING_DOWN_DECODER);
782                    mFlushingAudio = SHUT_DOWN;
783                } else {
784                    mVideoDecoder.clear();
785                    ++mVideoDecoderGeneration;
786
787                    CHECK_EQ((int)mFlushingVideo, (int)SHUTTING_DOWN_DECODER);
788                    mFlushingVideo = SHUT_DOWN;
789                }
790
791                finishFlushIfPossible();
792            } else if (what == Decoder::kWhatError) {
793                status_t err;
794                if (!msg->findInt32("err", &err) || err == OK) {
795                    err = UNKNOWN_ERROR;
796                }
797
798                // Decoder errors can be due to Source (e.g. from streaming),
799                // or from decoding corrupted bitstreams, or from other decoder
800                // MediaCodec operations (e.g. from an ongoing reset or seek).
801                //
802                // We try to gracefully shut down the affected decoder if possible,
803                // rather than trying to force the shutdown with something
804                // similar to performReset(). This method can lead to a hang
805                // if MediaCodec functions block after an error, but they should
806                // typically return INVALID_OPERATION instead of blocking.
807
808                FlushStatus *flushing = audio ? &mFlushingAudio : &mFlushingVideo;
809                ALOGE("received error(%#x) from %s decoder, flushing(%d), now shutting down",
810                        err, audio ? "audio" : "video", *flushing);
811
812                switch (*flushing) {
813                    case NONE:
814                        mDeferredActions.push_back(
815                                new ShutdownDecoderAction(audio, !audio /* video */));
816                        processDeferredActions();
817                        break;
818                    case FLUSHING_DECODER:
819                        *flushing = FLUSHING_DECODER_SHUTDOWN; // initiate shutdown after flush.
820                        break; // Wait for flush to complete.
821                    case FLUSHING_DECODER_SHUTDOWN:
822                        break; // Wait for flush to complete.
823                    case SHUTTING_DOWN_DECODER:
824                        break; // Wait for shutdown to complete.
825                    case FLUSHED:
826                        // Widevine source reads must stop before releasing the video decoder.
827                        if (!audio && mSource != NULL && mSourceFlags & Source::FLAG_SECURE) {
828                            mSource->stop();
829                        }
830                        getDecoder(audio)->initiateShutdown(); // In the middle of a seek.
831                        *flushing = SHUTTING_DOWN_DECODER;     // Shut down.
832                        break;
833                    case SHUT_DOWN:
834                        finishFlushIfPossible();  // Should not occur.
835                        break;                    // Finish anyways.
836                }
837                notifyListener(MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, err);
838            } else if (what == Decoder::kWhatDrainThisBuffer) {
839                renderBuffer(audio, msg);
840            } else {
841                ALOGV("Unhandled decoder notification %d '%c%c%c%c'.",
842                      what,
843                      what >> 24,
844                      (what >> 16) & 0xff,
845                      (what >> 8) & 0xff,
846                      what & 0xff);
847            }
848
849            break;
850        }
851
852        case kWhatRendererNotify:
853        {
854            int32_t requesterGeneration = mRendererGeneration - 1;
855            CHECK(msg->findInt32("generation", &requesterGeneration));
856            if (requesterGeneration != mRendererGeneration) {
857                ALOGV("got message from old renderer, generation(%d:%d)",
858                        requesterGeneration, mRendererGeneration);
859                return;
860            }
861
862            int32_t what;
863            CHECK(msg->findInt32("what", &what));
864
865            if (what == Renderer::kWhatEOS) {
866                int32_t audio;
867                CHECK(msg->findInt32("audio", &audio));
868
869                int32_t finalResult;
870                CHECK(msg->findInt32("finalResult", &finalResult));
871
872                if (audio) {
873                    mAudioEOS = true;
874                } else {
875                    mVideoEOS = true;
876                }
877
878                if (finalResult == ERROR_END_OF_STREAM) {
879                    ALOGV("reached %s EOS", audio ? "audio" : "video");
880                } else {
881                    ALOGE("%s track encountered an error (%d)",
882                         audio ? "audio" : "video", finalResult);
883
884                    notifyListener(
885                            MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, finalResult);
886                }
887
888                if ((mAudioEOS || mAudioDecoder == NULL)
889                        && (mVideoEOS || mVideoDecoder == NULL)) {
890                    notifyListener(MEDIA_PLAYBACK_COMPLETE, 0, 0);
891                }
892            } else if (what == Renderer::kWhatFlushComplete) {
893                int32_t audio;
894                CHECK(msg->findInt32("audio", &audio));
895
896                ALOGV("renderer %s flush completed.", audio ? "audio" : "video");
897                handleFlushComplete(audio, false /* isDecoder */);
898                finishFlushIfPossible();
899            } else if (what == Renderer::kWhatVideoRenderingStart) {
900                notifyListener(MEDIA_INFO, MEDIA_INFO_RENDERING_START, 0);
901            } else if (what == Renderer::kWhatMediaRenderingStart) {
902                ALOGV("media rendering started");
903                notifyListener(MEDIA_STARTED, 0, 0);
904            } else if (what == Renderer::kWhatAudioOffloadTearDown) {
905                ALOGV("Tear down audio offload, fall back to s/w path");
906                int64_t positionUs;
907                CHECK(msg->findInt64("positionUs", &positionUs));
908                int32_t reason;
909                CHECK(msg->findInt32("reason", &reason));
910                closeAudioSink();
911                mAudioDecoder.clear();
912                ++mAudioDecoderGeneration;
913                mRenderer->flush(true /* audio */);
914                if (mVideoDecoder != NULL) {
915                    mRenderer->flush(false /* audio */);
916                }
917                mRenderer->signalDisableOffloadAudio();
918                mOffloadAudio = false;
919
920                performSeek(positionUs, false /* needNotify */);
921                if (reason == Renderer::kDueToError) {
922                    instantiateDecoder(true /* audio */, &mAudioDecoder);
923                }
924            }
925            break;
926        }
927
928        case kWhatMoreDataQueued:
929        {
930            break;
931        }
932
933        case kWhatReset:
934        {
935            ALOGV("kWhatReset");
936
937            mDeferredActions.push_back(
938                    new ShutdownDecoderAction(
939                        true /* audio */, true /* video */));
940
941            mDeferredActions.push_back(
942                    new SimpleAction(&NuPlayer::performReset));
943
944            processDeferredActions();
945            break;
946        }
947
948        case kWhatSeek:
949        {
950            int64_t seekTimeUs;
951            int32_t needNotify;
952            CHECK(msg->findInt64("seekTimeUs", &seekTimeUs));
953            CHECK(msg->findInt32("needNotify", &needNotify));
954
955            ALOGV("kWhatSeek seekTimeUs=%lld us, needNotify=%d",
956                    seekTimeUs, needNotify);
957
958            mDeferredActions.push_back(
959                    new SimpleAction(&NuPlayer::performDecoderFlush));
960
961            mDeferredActions.push_back(
962                    new SeekAction(seekTimeUs, needNotify));
963
964            processDeferredActions();
965            break;
966        }
967
968        case kWhatPause:
969        {
970            if (mSource != NULL) {
971                mSource->pause();
972            } else {
973                ALOGW("pause called when source is gone or not set");
974            }
975            if (mRenderer != NULL) {
976                mRenderer->pause();
977            } else {
978                ALOGW("pause called when renderer is gone or not set");
979            }
980            break;
981        }
982
983        case kWhatResume:
984        {
985            if (mSource != NULL) {
986                mSource->resume();
987            } else {
988                ALOGW("resume called when source is gone or not set");
989            }
990            // |mAudioDecoder| may have been released due to the pause timeout, so re-create it if
991            // needed.
992            if (audioDecoderStillNeeded() && mAudioDecoder == NULL) {
993                instantiateDecoder(true /* audio */, &mAudioDecoder);
994            }
995            if (mRenderer != NULL) {
996                mRenderer->resume();
997            } else {
998                ALOGW("resume called when renderer is gone or not set");
999            }
1000            break;
1001        }
1002
1003        case kWhatSourceNotify:
1004        {
1005            onSourceNotify(msg);
1006            break;
1007        }
1008
1009        case kWhatClosedCaptionNotify:
1010        {
1011            onClosedCaptionNotify(msg);
1012            break;
1013        }
1014
1015        default:
1016            TRESPASS();
1017            break;
1018    }
1019}
1020
1021bool NuPlayer::audioDecoderStillNeeded() {
1022    // Audio decoder is no longer needed if it's in shut/shutting down status.
1023    return ((mFlushingAudio != SHUT_DOWN) && (mFlushingAudio != SHUTTING_DOWN_DECODER));
1024}
1025
1026void NuPlayer::handleFlushComplete(bool audio, bool isDecoder) {
1027    // We wait for both the decoder flush and the renderer flush to complete
1028    // before entering either the FLUSHED or the SHUTTING_DOWN_DECODER state.
1029
1030    mFlushComplete[audio][isDecoder] = true;
1031    if (!mFlushComplete[audio][!isDecoder]) {
1032        return;
1033    }
1034
1035    FlushStatus *state = audio ? &mFlushingAudio : &mFlushingVideo;
1036    switch (*state) {
1037        case FLUSHING_DECODER:
1038        {
1039            *state = FLUSHED;
1040            break;
1041        }
1042
1043        case FLUSHING_DECODER_SHUTDOWN:
1044        {
1045            *state = SHUTTING_DOWN_DECODER;
1046
1047            ALOGV("initiating %s decoder shutdown", audio ? "audio" : "video");
1048            if (!audio) {
1049                // Widevine source reads must stop before releasing the video decoder.
1050                if (mSource != NULL && mSourceFlags & Source::FLAG_SECURE) {
1051                    mSource->stop();
1052                }
1053            }
1054            getDecoder(audio)->initiateShutdown();
1055            break;
1056        }
1057
1058        default:
1059            // decoder flush completes only occur in a flushing state.
1060            LOG_ALWAYS_FATAL_IF(isDecoder, "decoder flush in invalid state %d", *state);
1061            break;
1062    }
1063}
1064
1065void NuPlayer::finishFlushIfPossible() {
1066    if (mFlushingAudio != NONE && mFlushingAudio != FLUSHED
1067            && mFlushingAudio != SHUT_DOWN) {
1068        return;
1069    }
1070
1071    if (mFlushingVideo != NONE && mFlushingVideo != FLUSHED
1072            && mFlushingVideo != SHUT_DOWN) {
1073        return;
1074    }
1075
1076    ALOGV("both audio and video are flushed now.");
1077
1078    mPendingAudioAccessUnit.clear();
1079    mAggregateBuffer.clear();
1080
1081    if (mTimeDiscontinuityPending) {
1082        mRenderer->signalTimeDiscontinuity();
1083        mTimeDiscontinuityPending = false;
1084    }
1085
1086    if (mAudioDecoder != NULL && mFlushingAudio == FLUSHED) {
1087        mAudioDecoder->signalResume();
1088    }
1089
1090    if (mVideoDecoder != NULL && mFlushingVideo == FLUSHED) {
1091        mVideoDecoder->signalResume();
1092    }
1093
1094    mFlushingAudio = NONE;
1095    mFlushingVideo = NONE;
1096
1097    clearFlushComplete();
1098
1099    processDeferredActions();
1100}
1101
1102void NuPlayer::postScanSources() {
1103    if (mScanSourcesPending) {
1104        return;
1105    }
1106
1107    sp<AMessage> msg = new AMessage(kWhatScanSources, id());
1108    msg->setInt32("generation", mScanSourcesGeneration);
1109    msg->post();
1110
1111    mScanSourcesPending = true;
1112}
1113
1114void NuPlayer::openAudioSink(const sp<AMessage> &format, bool offloadOnly) {
1115    ALOGV("openAudioSink: offloadOnly(%d) mOffloadAudio(%d)",
1116            offloadOnly, mOffloadAudio);
1117    bool audioSinkChanged = false;
1118
1119    int32_t numChannels;
1120    CHECK(format->findInt32("channel-count", &numChannels));
1121
1122    int32_t channelMask;
1123    if (!format->findInt32("channel-mask", &channelMask)) {
1124        // signal to the AudioSink to derive the mask from count.
1125        channelMask = CHANNEL_MASK_USE_CHANNEL_ORDER;
1126    }
1127
1128    int32_t sampleRate;
1129    CHECK(format->findInt32("sample-rate", &sampleRate));
1130
1131    uint32_t flags;
1132    int64_t durationUs;
1133    // FIXME: we should handle the case where the video decoder
1134    // is created after we receive the format change indication.
1135    // Current code will just make that we select deep buffer
1136    // with video which should not be a problem as it should
1137    // not prevent from keeping A/V sync.
1138    if (mVideoDecoder == NULL &&
1139            mSource->getDuration(&durationUs) == OK &&
1140            durationUs
1141                > AUDIO_SINK_MIN_DEEP_BUFFER_DURATION_US) {
1142        flags = AUDIO_OUTPUT_FLAG_DEEP_BUFFER;
1143    } else {
1144        flags = AUDIO_OUTPUT_FLAG_NONE;
1145    }
1146
1147    if (mOffloadAudio) {
1148        audio_format_t audioFormat = AUDIO_FORMAT_PCM_16_BIT;
1149        AString mime;
1150        CHECK(format->findString("mime", &mime));
1151        status_t err = mapMimeToAudioFormat(audioFormat, mime.c_str());
1152
1153        if (err != OK) {
1154            ALOGE("Couldn't map mime \"%s\" to a valid "
1155                    "audio_format", mime.c_str());
1156            mOffloadAudio = false;
1157        } else {
1158            ALOGV("Mime \"%s\" mapped to audio_format 0x%x",
1159                    mime.c_str(), audioFormat);
1160
1161            int avgBitRate = -1;
1162            format->findInt32("bit-rate", &avgBitRate);
1163
1164            int32_t aacProfile = -1;
1165            if (audioFormat == AUDIO_FORMAT_AAC
1166                    && format->findInt32("aac-profile", &aacProfile)) {
1167                // Redefine AAC format as per aac profile
1168                mapAACProfileToAudioFormat(
1169                        audioFormat,
1170                        aacProfile);
1171            }
1172
1173            audio_offload_info_t offloadInfo = AUDIO_INFO_INITIALIZER;
1174            offloadInfo.duration_us = -1;
1175            format->findInt64(
1176                    "durationUs", &offloadInfo.duration_us);
1177            offloadInfo.sample_rate = sampleRate;
1178            offloadInfo.channel_mask = channelMask;
1179            offloadInfo.format = audioFormat;
1180            offloadInfo.stream_type = AUDIO_STREAM_MUSIC;
1181            offloadInfo.bit_rate = avgBitRate;
1182            offloadInfo.has_video = (mVideoDecoder != NULL);
1183            offloadInfo.is_streaming = true;
1184
1185            if (memcmp(&mCurrentOffloadInfo, &offloadInfo, sizeof(offloadInfo)) == 0) {
1186                ALOGV("openAudioSink: no change in offload mode");
1187                return;  // no change from previous configuration, everything ok.
1188            }
1189            ALOGV("openAudioSink: try to open AudioSink in offload mode");
1190            flags |= AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD;
1191            flags &= ~AUDIO_OUTPUT_FLAG_DEEP_BUFFER;
1192            audioSinkChanged = true;
1193            mAudioSink->close();
1194            err = mAudioSink->open(
1195                    sampleRate,
1196                    numChannels,
1197                    (audio_channel_mask_t)channelMask,
1198                    audioFormat,
1199                    8 /* bufferCount */,
1200                    &NuPlayer::Renderer::AudioSinkCallback,
1201                    mRenderer.get(),
1202                    (audio_output_flags_t)flags,
1203                    &offloadInfo);
1204
1205            if (err == OK) {
1206                // If the playback is offloaded to h/w, we pass
1207                // the HAL some metadata information.
1208                // We don't want to do this for PCM because it
1209                // will be going through the AudioFlinger mixer
1210                // before reaching the hardware.
1211                sp<MetaData> audioMeta =
1212                        mSource->getFormatMeta(true /* audio */);
1213                sendMetaDataToHal(mAudioSink, audioMeta);
1214                mCurrentOffloadInfo = offloadInfo;
1215                err = mAudioSink->start();
1216                ALOGV_IF(err == OK, "openAudioSink: offload succeeded");
1217            }
1218            if (err != OK) {
1219                // Clean up, fall back to non offload mode.
1220                mAudioSink->close();
1221                mRenderer->signalDisableOffloadAudio();
1222                mOffloadAudio = false;
1223                mCurrentOffloadInfo = AUDIO_INFO_INITIALIZER;
1224                ALOGV("openAudioSink: offload failed");
1225            }
1226        }
1227    }
1228    if (!offloadOnly && !mOffloadAudio) {
1229        flags &= ~AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD;
1230        ALOGV("openAudioSink: open AudioSink in NON-offload mode");
1231
1232        audioSinkChanged = true;
1233        mAudioSink->close();
1234        mCurrentOffloadInfo = AUDIO_INFO_INITIALIZER;
1235        CHECK_EQ(mAudioSink->open(
1236                    sampleRate,
1237                    numChannels,
1238                    (audio_channel_mask_t)channelMask,
1239                    AUDIO_FORMAT_PCM_16_BIT,
1240                    8 /* bufferCount */,
1241                    NULL,
1242                    NULL,
1243                    (audio_output_flags_t)flags),
1244                 (status_t)OK);
1245        mAudioSink->start();
1246    }
1247    if (audioSinkChanged) {
1248        mRenderer->signalAudioSinkChanged();
1249    }
1250}
1251
1252void NuPlayer::closeAudioSink() {
1253    mAudioSink->close();
1254    mCurrentOffloadInfo = AUDIO_INFO_INITIALIZER;
1255}
1256
1257status_t NuPlayer::instantiateDecoder(bool audio, sp<Decoder> *decoder) {
1258    if (*decoder != NULL) {
1259        return OK;
1260    }
1261
1262    sp<AMessage> format = mSource->getFormat(audio);
1263
1264    if (format == NULL) {
1265        return -EWOULDBLOCK;
1266    }
1267
1268    if (!audio) {
1269        AString mime;
1270        CHECK(format->findString("mime", &mime));
1271        mVideoIsAVC = !strcasecmp(MEDIA_MIMETYPE_VIDEO_AVC, mime.c_str());
1272
1273        sp<AMessage> ccNotify = new AMessage(kWhatClosedCaptionNotify, id());
1274        mCCDecoder = new CCDecoder(ccNotify);
1275
1276        if (mSourceFlags & Source::FLAG_SECURE) {
1277            format->setInt32("secure", true);
1278        }
1279    }
1280
1281    if (audio) {
1282        sp<AMessage> notify = new AMessage(kWhatAudioNotify, id());
1283        ++mAudioDecoderGeneration;
1284        notify->setInt32("generation", mAudioDecoderGeneration);
1285
1286        if (mOffloadAudio) {
1287            *decoder = new DecoderPassThrough(notify);
1288        } else {
1289            *decoder = new Decoder(notify);
1290        }
1291    } else {
1292        sp<AMessage> notify = new AMessage(kWhatVideoNotify, id());
1293        ++mVideoDecoderGeneration;
1294        notify->setInt32("generation", mVideoDecoderGeneration);
1295
1296        *decoder = new Decoder(notify, mNativeWindow);
1297    }
1298    (*decoder)->init();
1299    (*decoder)->configure(format);
1300
1301    // allocate buffers to decrypt widevine source buffers
1302    if (!audio && (mSourceFlags & Source::FLAG_SECURE)) {
1303        Vector<sp<ABuffer> > inputBufs;
1304        CHECK_EQ((*decoder)->getInputBuffers(&inputBufs), (status_t)OK);
1305
1306        Vector<MediaBuffer *> mediaBufs;
1307        for (size_t i = 0; i < inputBufs.size(); i++) {
1308            const sp<ABuffer> &buffer = inputBufs[i];
1309            MediaBuffer *mbuf = new MediaBuffer(buffer->data(), buffer->size());
1310            mediaBufs.push(mbuf);
1311        }
1312
1313        status_t err = mSource->setBuffers(audio, mediaBufs);
1314        if (err != OK) {
1315            for (size_t i = 0; i < mediaBufs.size(); ++i) {
1316                mediaBufs[i]->release();
1317            }
1318            mediaBufs.clear();
1319            ALOGE("Secure source didn't support secure mediaBufs.");
1320            return err;
1321        }
1322    }
1323    return OK;
1324}
1325
1326status_t NuPlayer::feedDecoderInputData(bool audio, const sp<AMessage> &msg) {
1327    sp<AMessage> reply;
1328    CHECK(msg->findMessage("reply", &reply));
1329
1330    if ((audio && mFlushingAudio != NONE)
1331            || (!audio && mFlushingVideo != NONE)
1332            || mSource == NULL) {
1333        reply->setInt32("err", INFO_DISCONTINUITY);
1334        reply->post();
1335        return OK;
1336    }
1337
1338    sp<ABuffer> accessUnit;
1339
1340    // Aggregate smaller buffers into a larger buffer.
1341    // The goal is to reduce power consumption.
1342    // Note this will not work if the decoder requires one frame per buffer.
1343    bool doBufferAggregation = (audio && mOffloadAudio);
1344    bool needMoreData = false;
1345
1346    bool dropAccessUnit;
1347    do {
1348        status_t err;
1349        // Did we save an accessUnit earlier because of a discontinuity?
1350        if (audio && (mPendingAudioAccessUnit != NULL)) {
1351            accessUnit = mPendingAudioAccessUnit;
1352            mPendingAudioAccessUnit.clear();
1353            err = mPendingAudioErr;
1354            ALOGV("feedDecoderInputData() use mPendingAudioAccessUnit");
1355        } else {
1356            err = mSource->dequeueAccessUnit(audio, &accessUnit);
1357        }
1358
1359        if (err == -EWOULDBLOCK) {
1360            return err;
1361        } else if (err != OK) {
1362            if (err == INFO_DISCONTINUITY) {
1363                if (doBufferAggregation && (mAggregateBuffer != NULL)) {
1364                    // We already have some data so save this for later.
1365                    mPendingAudioErr = err;
1366                    mPendingAudioAccessUnit = accessUnit;
1367                    accessUnit.clear();
1368                    ALOGD("feedDecoderInputData() save discontinuity for later");
1369                    break;
1370                }
1371                int32_t type;
1372                CHECK(accessUnit->meta()->findInt32("discontinuity", &type));
1373
1374                bool formatChange =
1375                    (audio &&
1376                     (type & ATSParser::DISCONTINUITY_AUDIO_FORMAT))
1377                    || (!audio &&
1378                            (type & ATSParser::DISCONTINUITY_VIDEO_FORMAT));
1379
1380                bool timeChange = (type & ATSParser::DISCONTINUITY_TIME) != 0;
1381
1382                ALOGI("%s discontinuity (formatChange=%d, time=%d)",
1383                     audio ? "audio" : "video", formatChange, timeChange);
1384
1385                if (audio) {
1386                    mSkipRenderingAudioUntilMediaTimeUs = -1;
1387                } else {
1388                    mSkipRenderingVideoUntilMediaTimeUs = -1;
1389                }
1390
1391                if (timeChange) {
1392                    sp<AMessage> extra;
1393                    if (accessUnit->meta()->findMessage("extra", &extra)
1394                            && extra != NULL) {
1395                        int64_t resumeAtMediaTimeUs;
1396                        if (extra->findInt64(
1397                                    "resume-at-mediatimeUs", &resumeAtMediaTimeUs)) {
1398                            ALOGI("suppressing rendering of %s until %lld us",
1399                                    audio ? "audio" : "video", resumeAtMediaTimeUs);
1400
1401                            if (audio) {
1402                                mSkipRenderingAudioUntilMediaTimeUs =
1403                                    resumeAtMediaTimeUs;
1404                            } else {
1405                                mSkipRenderingVideoUntilMediaTimeUs =
1406                                    resumeAtMediaTimeUs;
1407                            }
1408                        }
1409                    }
1410                }
1411
1412                mTimeDiscontinuityPending =
1413                    mTimeDiscontinuityPending || timeChange;
1414
1415                bool seamlessFormatChange = false;
1416                sp<AMessage> newFormat = mSource->getFormat(audio);
1417                if (formatChange) {
1418                    seamlessFormatChange =
1419                        getDecoder(audio)->supportsSeamlessFormatChange(newFormat);
1420                    // treat seamless format change separately
1421                    formatChange = !seamlessFormatChange;
1422                }
1423                bool shutdownOrFlush = formatChange || timeChange;
1424
1425                // We want to queue up scan-sources only once per discontinuity.
1426                // We control this by doing it only if neither audio nor video are
1427                // flushing or shutting down.  (After handling 1st discontinuity, one
1428                // of the flushing states will not be NONE.)
1429                // No need to scan sources if this discontinuity does not result
1430                // in a flush or shutdown, as the flushing state will stay NONE.
1431                if (mFlushingAudio == NONE && mFlushingVideo == NONE &&
1432                        shutdownOrFlush) {
1433                    // And we'll resume scanning sources once we're done
1434                    // flushing.
1435                    mDeferredActions.push_front(
1436                            new SimpleAction(
1437                                &NuPlayer::performScanSources));
1438                }
1439
1440                if (formatChange /* not seamless */) {
1441                    // must change decoder
1442                    flushDecoder(audio, /* needShutdown = */ true);
1443                } else if (timeChange) {
1444                    // need to flush
1445                    flushDecoder(audio, /* needShutdown = */ false, newFormat);
1446                    err = OK;
1447                } else if (seamlessFormatChange) {
1448                    // reuse existing decoder and don't flush
1449                    updateDecoderFormatWithoutFlush(audio, newFormat);
1450                    err = OK;
1451                } else {
1452                    // This stream is unaffected by the discontinuity
1453                    return -EWOULDBLOCK;
1454                }
1455            }
1456
1457            reply->setInt32("err", err);
1458            reply->post();
1459            return OK;
1460        }
1461
1462        if (!audio) {
1463            ++mNumFramesTotal;
1464        }
1465
1466        dropAccessUnit = false;
1467        if (!audio
1468                && !(mSourceFlags & Source::FLAG_SECURE)
1469                && mRenderer->getVideoLateByUs() > 100000ll
1470                && mVideoIsAVC
1471                && !IsAVCReferenceFrame(accessUnit)) {
1472            dropAccessUnit = true;
1473            ++mNumFramesDropped;
1474        }
1475
1476        size_t smallSize = accessUnit->size();
1477        needMoreData = false;
1478        if (doBufferAggregation && (mAggregateBuffer == NULL)
1479                // Don't bother if only room for a few small buffers.
1480                && (smallSize < (kAggregateBufferSizeBytes / 3))) {
1481            // Create a larger buffer for combining smaller buffers from the extractor.
1482            mAggregateBuffer = new ABuffer(kAggregateBufferSizeBytes);
1483            mAggregateBuffer->setRange(0, 0); // start empty
1484        }
1485
1486        if (doBufferAggregation && (mAggregateBuffer != NULL)) {
1487            int64_t timeUs;
1488            int64_t dummy;
1489            bool smallTimestampValid = accessUnit->meta()->findInt64("timeUs", &timeUs);
1490            bool bigTimestampValid = mAggregateBuffer->meta()->findInt64("timeUs", &dummy);
1491            // Will the smaller buffer fit?
1492            size_t bigSize = mAggregateBuffer->size();
1493            size_t roomLeft = mAggregateBuffer->capacity() - bigSize;
1494            // Should we save this small buffer for the next big buffer?
1495            // If the first small buffer did not have a timestamp then save
1496            // any buffer that does have a timestamp until the next big buffer.
1497            if ((smallSize > roomLeft)
1498                || (!bigTimestampValid && (bigSize > 0) && smallTimestampValid)) {
1499                mPendingAudioErr = err;
1500                mPendingAudioAccessUnit = accessUnit;
1501                accessUnit.clear();
1502            } else {
1503                // Grab time from first small buffer if available.
1504                if ((bigSize == 0) && smallTimestampValid) {
1505                    mAggregateBuffer->meta()->setInt64("timeUs", timeUs);
1506                }
1507                // Append small buffer to the bigger buffer.
1508                memcpy(mAggregateBuffer->base() + bigSize, accessUnit->data(), smallSize);
1509                bigSize += smallSize;
1510                mAggregateBuffer->setRange(0, bigSize);
1511
1512                // Keep looping until we run out of room in the mAggregateBuffer.
1513                needMoreData = true;
1514
1515                ALOGV("feedDecoderInputData() smallSize = %zu, bigSize = %zu, capacity = %zu",
1516                        smallSize, bigSize, mAggregateBuffer->capacity());
1517            }
1518        }
1519    } while (dropAccessUnit || needMoreData);
1520
1521    // ALOGV("returned a valid buffer of %s data", audio ? "audio" : "video");
1522
1523#if 0
1524    int64_t mediaTimeUs;
1525    CHECK(accessUnit->meta()->findInt64("timeUs", &mediaTimeUs));
1526    ALOGV("feeding %s input buffer at media time %.2f secs",
1527         audio ? "audio" : "video",
1528         mediaTimeUs / 1E6);
1529#endif
1530
1531    if (!audio) {
1532        mCCDecoder->decode(accessUnit);
1533    }
1534
1535    if (doBufferAggregation && (mAggregateBuffer != NULL)) {
1536        ALOGV("feedDecoderInputData() reply with aggregated buffer, %zu",
1537                mAggregateBuffer->size());
1538        reply->setBuffer("buffer", mAggregateBuffer);
1539        mAggregateBuffer.clear();
1540    } else {
1541        reply->setBuffer("buffer", accessUnit);
1542    }
1543
1544    reply->post();
1545
1546    return OK;
1547}
1548
1549void NuPlayer::renderBuffer(bool audio, const sp<AMessage> &msg) {
1550    // ALOGV("renderBuffer %s", audio ? "audio" : "video");
1551
1552    sp<AMessage> reply;
1553    CHECK(msg->findMessage("reply", &reply));
1554
1555    if ((audio && mFlushingAudio != NONE)
1556            || (!audio && mFlushingVideo != NONE)) {
1557        // We're currently attempting to flush the decoder, in order
1558        // to complete this, the decoder wants all its buffers back,
1559        // so we don't want any output buffers it sent us (from before
1560        // we initiated the flush) to be stuck in the renderer's queue.
1561
1562        ALOGV("we're still flushing the %s decoder, sending its output buffer"
1563             " right back.", audio ? "audio" : "video");
1564
1565        reply->post();
1566        return;
1567    }
1568
1569    sp<ABuffer> buffer;
1570    CHECK(msg->findBuffer("buffer", &buffer));
1571
1572    int64_t mediaTimeUs;
1573    CHECK(buffer->meta()->findInt64("timeUs", &mediaTimeUs));
1574
1575    int64_t &skipUntilMediaTimeUs =
1576        audio
1577            ? mSkipRenderingAudioUntilMediaTimeUs
1578            : mSkipRenderingVideoUntilMediaTimeUs;
1579
1580    if (skipUntilMediaTimeUs >= 0) {
1581
1582        if (mediaTimeUs < skipUntilMediaTimeUs) {
1583            ALOGV("dropping %s buffer at time %lld as requested.",
1584                 audio ? "audio" : "video",
1585                 mediaTimeUs);
1586
1587            reply->post();
1588            return;
1589        }
1590
1591        skipUntilMediaTimeUs = -1;
1592    }
1593
1594    if (!audio && mCCDecoder->isSelected()) {
1595        mCCDecoder->display(mediaTimeUs);
1596    }
1597
1598    mRenderer->queueBuffer(audio, buffer, reply);
1599}
1600
1601void NuPlayer::updateVideoSize(
1602        const sp<AMessage> &inputFormat,
1603        const sp<AMessage> &outputFormat) {
1604    if (inputFormat == NULL) {
1605        ALOGW("Unknown video size, reporting 0x0!");
1606        notifyListener(MEDIA_SET_VIDEO_SIZE, 0, 0);
1607        return;
1608    }
1609
1610    int32_t displayWidth, displayHeight;
1611    int32_t cropLeft, cropTop, cropRight, cropBottom;
1612
1613    if (outputFormat != NULL) {
1614        int32_t width, height;
1615        CHECK(outputFormat->findInt32("width", &width));
1616        CHECK(outputFormat->findInt32("height", &height));
1617
1618        int32_t cropLeft, cropTop, cropRight, cropBottom;
1619        CHECK(outputFormat->findRect(
1620                    "crop",
1621                    &cropLeft, &cropTop, &cropRight, &cropBottom));
1622
1623        displayWidth = cropRight - cropLeft + 1;
1624        displayHeight = cropBottom - cropTop + 1;
1625
1626        ALOGV("Video output format changed to %d x %d "
1627             "(crop: %d x %d @ (%d, %d))",
1628             width, height,
1629             displayWidth,
1630             displayHeight,
1631             cropLeft, cropTop);
1632    } else {
1633        CHECK(inputFormat->findInt32("width", &displayWidth));
1634        CHECK(inputFormat->findInt32("height", &displayHeight));
1635
1636        ALOGV("Video input format %d x %d", displayWidth, displayHeight);
1637    }
1638
1639    // Take into account sample aspect ratio if necessary:
1640    int32_t sarWidth, sarHeight;
1641    if (inputFormat->findInt32("sar-width", &sarWidth)
1642            && inputFormat->findInt32("sar-height", &sarHeight)) {
1643        ALOGV("Sample aspect ratio %d : %d", sarWidth, sarHeight);
1644
1645        displayWidth = (displayWidth * sarWidth) / sarHeight;
1646
1647        ALOGV("display dimensions %d x %d", displayWidth, displayHeight);
1648    }
1649
1650    int32_t rotationDegrees;
1651    if (!inputFormat->findInt32("rotation-degrees", &rotationDegrees)) {
1652        rotationDegrees = 0;
1653    }
1654
1655    if (rotationDegrees == 90 || rotationDegrees == 270) {
1656        int32_t tmp = displayWidth;
1657        displayWidth = displayHeight;
1658        displayHeight = tmp;
1659    }
1660
1661    notifyListener(
1662            MEDIA_SET_VIDEO_SIZE,
1663            displayWidth,
1664            displayHeight);
1665}
1666
1667void NuPlayer::notifyListener(int msg, int ext1, int ext2, const Parcel *in) {
1668    if (mDriver == NULL) {
1669        return;
1670    }
1671
1672    sp<NuPlayerDriver> driver = mDriver.promote();
1673
1674    if (driver == NULL) {
1675        return;
1676    }
1677
1678    driver->notifyListener(msg, ext1, ext2, in);
1679}
1680
1681void NuPlayer::flushDecoder(
1682        bool audio, bool needShutdown, const sp<AMessage> &newFormat) {
1683    ALOGV("[%s] flushDecoder needShutdown=%d",
1684          audio ? "audio" : "video", needShutdown);
1685
1686    const sp<Decoder> &decoder = getDecoder(audio);
1687    if (decoder == NULL) {
1688        ALOGI("flushDecoder %s without decoder present",
1689             audio ? "audio" : "video");
1690        return;
1691    }
1692
1693    // Make sure we don't continue to scan sources until we finish flushing.
1694    ++mScanSourcesGeneration;
1695    mScanSourcesPending = false;
1696
1697    decoder->signalFlush(newFormat);
1698    mRenderer->flush(audio);
1699
1700    FlushStatus newStatus =
1701        needShutdown ? FLUSHING_DECODER_SHUTDOWN : FLUSHING_DECODER;
1702
1703    mFlushComplete[audio][false /* isDecoder */] = false;
1704    mFlushComplete[audio][true /* isDecoder */] = false;
1705    if (audio) {
1706        ALOGE_IF(mFlushingAudio != NONE,
1707                "audio flushDecoder() is called in state %d", mFlushingAudio);
1708        mFlushingAudio = newStatus;
1709    } else {
1710        ALOGE_IF(mFlushingVideo != NONE,
1711                "video flushDecoder() is called in state %d", mFlushingVideo);
1712        mFlushingVideo = newStatus;
1713
1714        if (mCCDecoder != NULL) {
1715            mCCDecoder->flush();
1716        }
1717    }
1718}
1719
1720void NuPlayer::updateDecoderFormatWithoutFlush(
1721        bool audio, const sp<AMessage> &format) {
1722    ALOGV("[%s] updateDecoderFormatWithoutFlush", audio ? "audio" : "video");
1723
1724    const sp<Decoder> &decoder = getDecoder(audio);
1725    if (decoder == NULL) {
1726        ALOGI("updateDecoderFormatWithoutFlush %s without decoder present",
1727             audio ? "audio" : "video");
1728        return;
1729    }
1730
1731    decoder->signalUpdateFormat(format);
1732}
1733
1734void NuPlayer::queueDecoderShutdown(
1735        bool audio, bool video, const sp<AMessage> &reply) {
1736    ALOGI("queueDecoderShutdown audio=%d, video=%d", audio, video);
1737
1738    mDeferredActions.push_back(
1739            new ShutdownDecoderAction(audio, video));
1740
1741    mDeferredActions.push_back(
1742            new SimpleAction(&NuPlayer::performScanSources));
1743
1744    mDeferredActions.push_back(new PostMessageAction(reply));
1745
1746    processDeferredActions();
1747}
1748
1749status_t NuPlayer::setVideoScalingMode(int32_t mode) {
1750    mVideoScalingMode = mode;
1751    if (mNativeWindow != NULL) {
1752        status_t ret = native_window_set_scaling_mode(
1753                mNativeWindow->getNativeWindow().get(), mVideoScalingMode);
1754        if (ret != OK) {
1755            ALOGE("Failed to set scaling mode (%d): %s",
1756                -ret, strerror(-ret));
1757            return ret;
1758        }
1759    }
1760    return OK;
1761}
1762
1763status_t NuPlayer::getTrackInfo(Parcel* reply) const {
1764    sp<AMessage> msg = new AMessage(kWhatGetTrackInfo, id());
1765    msg->setPointer("reply", reply);
1766
1767    sp<AMessage> response;
1768    status_t err = msg->postAndAwaitResponse(&response);
1769    return err;
1770}
1771
1772status_t NuPlayer::getSelectedTrack(int32_t type, Parcel* reply) const {
1773    sp<AMessage> msg = new AMessage(kWhatGetSelectedTrack, id());
1774    msg->setPointer("reply", reply);
1775    msg->setInt32("type", type);
1776
1777    sp<AMessage> response;
1778    status_t err = msg->postAndAwaitResponse(&response);
1779    if (err == OK && response != NULL) {
1780        CHECK(response->findInt32("err", &err));
1781    }
1782    return err;
1783}
1784
1785status_t NuPlayer::selectTrack(size_t trackIndex, bool select) {
1786    sp<AMessage> msg = new AMessage(kWhatSelectTrack, id());
1787    msg->setSize("trackIndex", trackIndex);
1788    msg->setInt32("select", select);
1789
1790    sp<AMessage> response;
1791    status_t err = msg->postAndAwaitResponse(&response);
1792
1793    if (err != OK) {
1794        return err;
1795    }
1796
1797    if (!response->findInt32("err", &err)) {
1798        err = OK;
1799    }
1800
1801    return err;
1802}
1803
1804status_t NuPlayer::getCurrentPosition(int64_t *mediaUs) {
1805    sp<Renderer> renderer = mRenderer;
1806    if (renderer == NULL) {
1807        return NO_INIT;
1808    }
1809
1810    return renderer->getCurrentPosition(mediaUs);
1811}
1812
1813void NuPlayer::getStats(int64_t *numFramesTotal, int64_t *numFramesDropped) {
1814    *numFramesTotal = mNumFramesTotal;
1815    *numFramesDropped = mNumFramesDropped;
1816}
1817
1818sp<MetaData> NuPlayer::getFileMeta() {
1819    return mSource->getFileFormatMeta();
1820}
1821
1822void NuPlayer::schedulePollDuration() {
1823    sp<AMessage> msg = new AMessage(kWhatPollDuration, id());
1824    msg->setInt32("generation", mPollDurationGeneration);
1825    msg->post();
1826}
1827
1828void NuPlayer::cancelPollDuration() {
1829    ++mPollDurationGeneration;
1830}
1831
1832void NuPlayer::processDeferredActions() {
1833    while (!mDeferredActions.empty()) {
1834        // We won't execute any deferred actions until we're no longer in
1835        // an intermediate state, i.e. one more more decoders are currently
1836        // flushing or shutting down.
1837
1838        if (mFlushingAudio != NONE || mFlushingVideo != NONE) {
1839            // We're currently flushing, postpone the reset until that's
1840            // completed.
1841
1842            ALOGV("postponing action mFlushingAudio=%d, mFlushingVideo=%d",
1843                  mFlushingAudio, mFlushingVideo);
1844
1845            break;
1846        }
1847
1848        sp<Action> action = *mDeferredActions.begin();
1849        mDeferredActions.erase(mDeferredActions.begin());
1850
1851        action->execute(this);
1852    }
1853}
1854
1855void NuPlayer::performSeek(int64_t seekTimeUs, bool needNotify) {
1856    ALOGV("performSeek seekTimeUs=%lld us (%.2f secs), needNotify(%d)",
1857          seekTimeUs,
1858          seekTimeUs / 1E6,
1859          needNotify);
1860
1861    if (mSource == NULL) {
1862        // This happens when reset occurs right before the loop mode
1863        // asynchronously seeks to the start of the stream.
1864        LOG_ALWAYS_FATAL_IF(mAudioDecoder != NULL || mVideoDecoder != NULL,
1865                "mSource is NULL and decoders not NULL audio(%p) video(%p)",
1866                mAudioDecoder.get(), mVideoDecoder.get());
1867        return;
1868    }
1869    mSource->seekTo(seekTimeUs);
1870    ++mTimedTextGeneration;
1871
1872    if (mDriver != NULL) {
1873        sp<NuPlayerDriver> driver = mDriver.promote();
1874        if (driver != NULL) {
1875            if (needNotify) {
1876                driver->notifySeekComplete();
1877            }
1878        }
1879    }
1880
1881    // everything's flushed, continue playback.
1882}
1883
1884void NuPlayer::performDecoderFlush() {
1885    ALOGV("performDecoderFlush");
1886
1887    if (mAudioDecoder == NULL && mVideoDecoder == NULL) {
1888        return;
1889    }
1890
1891    mTimeDiscontinuityPending = true;
1892
1893    if (mAudioDecoder != NULL) {
1894        flushDecoder(true /* audio */, false /* needShutdown */);
1895    }
1896
1897    if (mVideoDecoder != NULL) {
1898        flushDecoder(false /* audio */, false /* needShutdown */);
1899    }
1900}
1901
1902void NuPlayer::performDecoderShutdown(bool audio, bool video) {
1903    ALOGV("performDecoderShutdown audio=%d, video=%d", audio, video);
1904
1905    if ((!audio || mAudioDecoder == NULL)
1906            && (!video || mVideoDecoder == NULL)) {
1907        return;
1908    }
1909
1910    mTimeDiscontinuityPending = true;
1911
1912    if (audio && mAudioDecoder != NULL) {
1913        flushDecoder(true /* audio */, true /* needShutdown */);
1914    }
1915
1916    if (video && mVideoDecoder != NULL) {
1917        flushDecoder(false /* audio */, true /* needShutdown */);
1918    }
1919}
1920
1921void NuPlayer::performReset() {
1922    ALOGV("performReset");
1923
1924    CHECK(mAudioDecoder == NULL);
1925    CHECK(mVideoDecoder == NULL);
1926
1927    cancelPollDuration();
1928
1929    ++mScanSourcesGeneration;
1930    mScanSourcesPending = false;
1931
1932    if (mRendererLooper != NULL) {
1933        if (mRenderer != NULL) {
1934            mRendererLooper->unregisterHandler(mRenderer->id());
1935        }
1936        mRendererLooper->stop();
1937        mRendererLooper.clear();
1938    }
1939    mRenderer.clear();
1940    ++mRendererGeneration;
1941
1942    if (mSource != NULL) {
1943        mSource->stop();
1944
1945        mSource.clear();
1946    }
1947
1948    if (mDriver != NULL) {
1949        sp<NuPlayerDriver> driver = mDriver.promote();
1950        if (driver != NULL) {
1951            driver->notifyResetComplete();
1952        }
1953    }
1954
1955    mStarted = false;
1956}
1957
1958void NuPlayer::performScanSources() {
1959    ALOGV("performScanSources");
1960
1961    if (!mStarted) {
1962        return;
1963    }
1964
1965    if (mAudioDecoder == NULL || mVideoDecoder == NULL) {
1966        postScanSources();
1967    }
1968}
1969
1970void NuPlayer::performSetSurface(const sp<NativeWindowWrapper> &wrapper) {
1971    ALOGV("performSetSurface");
1972
1973    mNativeWindow = wrapper;
1974
1975    // XXX - ignore error from setVideoScalingMode for now
1976    setVideoScalingMode(mVideoScalingMode);
1977
1978    if (mDriver != NULL) {
1979        sp<NuPlayerDriver> driver = mDriver.promote();
1980        if (driver != NULL) {
1981            driver->notifySetSurfaceComplete();
1982        }
1983    }
1984}
1985
1986void NuPlayer::onSourceNotify(const sp<AMessage> &msg) {
1987    int32_t what;
1988    CHECK(msg->findInt32("what", &what));
1989
1990    switch (what) {
1991        case Source::kWhatPrepared:
1992        {
1993            if (mSource == NULL) {
1994                // This is a stale notification from a source that was
1995                // asynchronously preparing when the client called reset().
1996                // We handled the reset, the source is gone.
1997                break;
1998            }
1999
2000            int32_t err;
2001            CHECK(msg->findInt32("err", &err));
2002
2003            sp<NuPlayerDriver> driver = mDriver.promote();
2004            if (driver != NULL) {
2005                // notify duration first, so that it's definitely set when
2006                // the app received the "prepare complete" callback.
2007                int64_t durationUs;
2008                if (mSource->getDuration(&durationUs) == OK) {
2009                    driver->notifyDuration(durationUs);
2010                }
2011                driver->notifyPrepareCompleted(err);
2012            }
2013
2014            break;
2015        }
2016
2017        case Source::kWhatFlagsChanged:
2018        {
2019            uint32_t flags;
2020            CHECK(msg->findInt32("flags", (int32_t *)&flags));
2021
2022            sp<NuPlayerDriver> driver = mDriver.promote();
2023            if (driver != NULL) {
2024                driver->notifyFlagsChanged(flags);
2025            }
2026
2027            if ((mSourceFlags & Source::FLAG_DYNAMIC_DURATION)
2028                    && (!(flags & Source::FLAG_DYNAMIC_DURATION))) {
2029                cancelPollDuration();
2030            } else if (!(mSourceFlags & Source::FLAG_DYNAMIC_DURATION)
2031                    && (flags & Source::FLAG_DYNAMIC_DURATION)
2032                    && (mAudioDecoder != NULL || mVideoDecoder != NULL)) {
2033                schedulePollDuration();
2034            }
2035
2036            mSourceFlags = flags;
2037            break;
2038        }
2039
2040        case Source::kWhatVideoSizeChanged:
2041        {
2042            sp<AMessage> format;
2043            CHECK(msg->findMessage("format", &format));
2044
2045            updateVideoSize(format);
2046            break;
2047        }
2048
2049        case Source::kWhatBufferingUpdate:
2050        {
2051            int32_t percentage;
2052            CHECK(msg->findInt32("percentage", &percentage));
2053
2054            notifyListener(MEDIA_BUFFERING_UPDATE, percentage, 0);
2055            break;
2056        }
2057
2058        case Source::kWhatBufferingStart:
2059        {
2060            notifyListener(MEDIA_INFO, MEDIA_INFO_BUFFERING_START, 0);
2061            break;
2062        }
2063
2064        case Source::kWhatBufferingEnd:
2065        {
2066            notifyListener(MEDIA_INFO, MEDIA_INFO_BUFFERING_END, 0);
2067            break;
2068        }
2069
2070        case Source::kWhatSubtitleData:
2071        {
2072            sp<ABuffer> buffer;
2073            CHECK(msg->findBuffer("buffer", &buffer));
2074
2075            sendSubtitleData(buffer, 0 /* baseIndex */);
2076            break;
2077        }
2078
2079        case Source::kWhatTimedTextData:
2080        {
2081            int32_t generation;
2082            if (msg->findInt32("generation", &generation)
2083                    && generation != mTimedTextGeneration) {
2084                break;
2085            }
2086
2087            sp<ABuffer> buffer;
2088            CHECK(msg->findBuffer("buffer", &buffer));
2089
2090            sp<NuPlayerDriver> driver = mDriver.promote();
2091            if (driver == NULL) {
2092                break;
2093            }
2094
2095            int posMs;
2096            int64_t timeUs, posUs;
2097            driver->getCurrentPosition(&posMs);
2098            posUs = posMs * 1000;
2099            CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
2100
2101            if (posUs < timeUs) {
2102                if (!msg->findInt32("generation", &generation)) {
2103                    msg->setInt32("generation", mTimedTextGeneration);
2104                }
2105                msg->post(timeUs - posUs);
2106            } else {
2107                sendTimedTextData(buffer);
2108            }
2109            break;
2110        }
2111
2112        case Source::kWhatQueueDecoderShutdown:
2113        {
2114            int32_t audio, video;
2115            CHECK(msg->findInt32("audio", &audio));
2116            CHECK(msg->findInt32("video", &video));
2117
2118            sp<AMessage> reply;
2119            CHECK(msg->findMessage("reply", &reply));
2120
2121            queueDecoderShutdown(audio, video, reply);
2122            break;
2123        }
2124
2125        case Source::kWhatDrmNoLicense:
2126        {
2127            notifyListener(MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, ERROR_DRM_NO_LICENSE);
2128            break;
2129        }
2130
2131        default:
2132            TRESPASS();
2133    }
2134}
2135
2136void NuPlayer::onClosedCaptionNotify(const sp<AMessage> &msg) {
2137    int32_t what;
2138    CHECK(msg->findInt32("what", &what));
2139
2140    switch (what) {
2141        case NuPlayer::CCDecoder::kWhatClosedCaptionData:
2142        {
2143            sp<ABuffer> buffer;
2144            CHECK(msg->findBuffer("buffer", &buffer));
2145
2146            size_t inbandTracks = 0;
2147            if (mSource != NULL) {
2148                inbandTracks = mSource->getTrackCount();
2149            }
2150
2151            sendSubtitleData(buffer, inbandTracks);
2152            break;
2153        }
2154
2155        case NuPlayer::CCDecoder::kWhatTrackAdded:
2156        {
2157            notifyListener(MEDIA_INFO, MEDIA_INFO_METADATA_UPDATE, 0);
2158
2159            break;
2160        }
2161
2162        default:
2163            TRESPASS();
2164    }
2165
2166
2167}
2168
2169void NuPlayer::sendSubtitleData(const sp<ABuffer> &buffer, int32_t baseIndex) {
2170    int32_t trackIndex;
2171    int64_t timeUs, durationUs;
2172    CHECK(buffer->meta()->findInt32("trackIndex", &trackIndex));
2173    CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
2174    CHECK(buffer->meta()->findInt64("durationUs", &durationUs));
2175
2176    Parcel in;
2177    in.writeInt32(trackIndex + baseIndex);
2178    in.writeInt64(timeUs);
2179    in.writeInt64(durationUs);
2180    in.writeInt32(buffer->size());
2181    in.writeInt32(buffer->size());
2182    in.write(buffer->data(), buffer->size());
2183
2184    notifyListener(MEDIA_SUBTITLE_DATA, 0, 0, &in);
2185}
2186
2187void NuPlayer::sendTimedTextData(const sp<ABuffer> &buffer) {
2188    const void *data;
2189    size_t size = 0;
2190    int64_t timeUs;
2191    int32_t flag = TextDescriptions::LOCAL_DESCRIPTIONS;
2192
2193    AString mime;
2194    CHECK(buffer->meta()->findString("mime", &mime));
2195    CHECK(strcasecmp(mime.c_str(), MEDIA_MIMETYPE_TEXT_3GPP) == 0);
2196
2197    data = buffer->data();
2198    size = buffer->size();
2199
2200    Parcel parcel;
2201    if (size > 0) {
2202        CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
2203        flag |= TextDescriptions::IN_BAND_TEXT_3GPP;
2204        TextDescriptions::getParcelOfDescriptions(
2205                (const uint8_t *)data, size, flag, timeUs / 1000, &parcel);
2206    }
2207
2208    if ((parcel.dataSize() > 0)) {
2209        notifyListener(MEDIA_TIMED_TEXT, 0, 0, &parcel);
2210    } else {  // send an empty timed text
2211        notifyListener(MEDIA_TIMED_TEXT, 0, 0);
2212    }
2213}
2214////////////////////////////////////////////////////////////////////////////////
2215
2216sp<AMessage> NuPlayer::Source::getFormat(bool audio) {
2217    sp<MetaData> meta = getFormatMeta(audio);
2218
2219    if (meta == NULL) {
2220        return NULL;
2221    }
2222
2223    sp<AMessage> msg = new AMessage;
2224
2225    if(convertMetaDataToMessage(meta, &msg) == OK) {
2226        return msg;
2227    }
2228    return NULL;
2229}
2230
2231void NuPlayer::Source::notifyFlagsChanged(uint32_t flags) {
2232    sp<AMessage> notify = dupNotify();
2233    notify->setInt32("what", kWhatFlagsChanged);
2234    notify->setInt32("flags", flags);
2235    notify->post();
2236}
2237
2238void NuPlayer::Source::notifyVideoSizeChanged(const sp<AMessage> &format) {
2239    sp<AMessage> notify = dupNotify();
2240    notify->setInt32("what", kWhatVideoSizeChanged);
2241    notify->setMessage("format", format);
2242    notify->post();
2243}
2244
2245void NuPlayer::Source::notifyPrepared(status_t err) {
2246    sp<AMessage> notify = dupNotify();
2247    notify->setInt32("what", kWhatPrepared);
2248    notify->setInt32("err", err);
2249    notify->post();
2250}
2251
2252void NuPlayer::Source::onMessageReceived(const sp<AMessage> & /* msg */) {
2253    TRESPASS();
2254}
2255
2256}  // namespace android
2257