GenericSource.cpp revision 42e8153cf7271b572e4a94ade332b68521977f36 
1/*
2 * Copyright (C) 2012 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 "GenericSource"
19
20#include "GenericSource.h"
21
22#include "AnotherPacketSource.h"
23
24#include <media/IMediaHTTPService.h>
25#include <media/stagefright/foundation/ABuffer.h>
26#include <media/stagefright/foundation/ADebug.h>
27#include <media/stagefright/foundation/AMessage.h>
28#include <media/stagefright/DataSource.h>
29#include <media/stagefright/FileSource.h>
30#include <media/stagefright/MediaBuffer.h>
31#include <media/stagefright/MediaDefs.h>
32#include <media/stagefright/MediaExtractor.h>
33#include <media/stagefright/MediaSource.h>
34#include <media/stagefright/MetaData.h>
35#include <media/stagefright/Utils.h>
36#include "../../libstagefright/include/DRMExtractor.h"
37#include "../../libstagefright/include/NuCachedSource2.h"
38#include "../../libstagefright/include/WVMExtractor.h"
39#include "../../libstagefright/include/HTTPBase.h"
40
41namespace android {
42
43NuPlayer::GenericSource::GenericSource(
44        const sp<AMessage> &notify,
45        bool uidValid,
46        uid_t uid)
47    : Source(notify),
48      mAudioTimeUs(0),
49      mAudioLastDequeueTimeUs(0),
50      mVideoTimeUs(0),
51      mVideoLastDequeueTimeUs(0),
52      mFetchSubtitleDataGeneration(0),
53      mFetchTimedTextDataGeneration(0),
54      mDurationUs(0ll),
55      mAudioIsVorbis(false),
56      mIsWidevine(false),
57      mIsSecure(false),
58      mUIDValid(uidValid),
59      mUID(uid),
60      mFd(-1),
61      mDrmManagerClient(NULL),
62      mMetaDataSize(-1ll),
63      mBitrate(-1ll),
64      mPollBufferingGeneration(0),
65      mPendingReadBufferTypes(0) {
66    resetDataSource();
67    DataSource::RegisterDefaultSniffers();
68}
69
70void NuPlayer::GenericSource::resetDataSource() {
71    mHTTPService.clear();
72    mHttpSource.clear();
73    mUri.clear();
74    mUriHeaders.clear();
75    if (mFd >= 0) {
76        close(mFd);
77        mFd = -1;
78    }
79    mOffset = 0;
80    mLength = 0;
81    setDrmPlaybackStatusIfNeeded(Playback::STOP, 0);
82    mDecryptHandle = NULL;
83    mDrmManagerClient = NULL;
84    mStarted = false;
85    mStopRead = true;
86}
87
88status_t NuPlayer::GenericSource::setDataSource(
89        const sp<IMediaHTTPService> &httpService,
90        const char *url,
91        const KeyedVector<String8, String8> *headers) {
92    resetDataSource();
93
94    mHTTPService = httpService;
95    mUri = url;
96
97    if (headers) {
98        mUriHeaders = *headers;
99    }
100
101    // delay data source creation to prepareAsync() to avoid blocking
102    // the calling thread in setDataSource for any significant time.
103    return OK;
104}
105
106status_t NuPlayer::GenericSource::setDataSource(
107        int fd, int64_t offset, int64_t length) {
108    resetDataSource();
109
110    mFd = dup(fd);
111    mOffset = offset;
112    mLength = length;
113
114    // delay data source creation to prepareAsync() to avoid blocking
115    // the calling thread in setDataSource for any significant time.
116    return OK;
117}
118
119sp<MetaData> NuPlayer::GenericSource::getFileFormatMeta() const {
120    return mFileMeta;
121}
122
123status_t NuPlayer::GenericSource::initFromDataSource() {
124    sp<MediaExtractor> extractor;
125
126    CHECK(mDataSource != NULL);
127
128    if (mIsWidevine) {
129        String8 mimeType;
130        float confidence;
131        sp<AMessage> dummy;
132        bool success;
133
134        success = SniffWVM(mDataSource, &mimeType, &confidence, &dummy);
135        if (!success
136                || strcasecmp(
137                    mimeType.string(), MEDIA_MIMETYPE_CONTAINER_WVM)) {
138            ALOGE("unsupported widevine mime: %s", mimeType.string());
139            return UNKNOWN_ERROR;
140        }
141
142        mWVMExtractor = new WVMExtractor(mDataSource);
143        mWVMExtractor->setAdaptiveStreamingMode(true);
144        if (mUIDValid) {
145            mWVMExtractor->setUID(mUID);
146        }
147        extractor = mWVMExtractor;
148    } else {
149        extractor = MediaExtractor::Create(mDataSource,
150                mSniffedMIME.empty() ? NULL: mSniffedMIME.c_str());
151    }
152
153    if (extractor == NULL) {
154        return UNKNOWN_ERROR;
155    }
156
157    if (extractor->getDrmFlag()) {
158        checkDrmStatus(mDataSource);
159    }
160
161    mFileMeta = extractor->getMetaData();
162    if (mFileMeta != NULL) {
163        int64_t duration;
164        if (mFileMeta->findInt64(kKeyDuration, &duration)) {
165            mDurationUs = duration;
166        }
167
168        if (!mIsWidevine) {
169            // Check mime to see if we actually have a widevine source.
170            // If the data source is not URL-type (eg. file source), we
171            // won't be able to tell until now.
172            const char *fileMime;
173            if (mFileMeta->findCString(kKeyMIMEType, &fileMime)
174                    && !strncasecmp(fileMime, "video/wvm", 9)) {
175                mIsWidevine = true;
176            }
177        }
178    }
179
180    int32_t totalBitrate = 0;
181
182    size_t numtracks = extractor->countTracks();
183    if (numtracks == 0) {
184        return UNKNOWN_ERROR;
185    }
186
187    for (size_t i = 0; i < numtracks; ++i) {
188        sp<MediaSource> track = extractor->getTrack(i);
189
190        sp<MetaData> meta = extractor->getTrackMetaData(i);
191
192        const char *mime;
193        CHECK(meta->findCString(kKeyMIMEType, &mime));
194
195        // Do the string compare immediately with "mime",
196        // we can't assume "mime" would stay valid after another
197        // extractor operation, some extractors might modify meta
198        // during getTrack() and make it invalid.
199        if (!strncasecmp(mime, "audio/", 6)) {
200            if (mAudioTrack.mSource == NULL) {
201                mAudioTrack.mIndex = i;
202                mAudioTrack.mSource = track;
203                mAudioTrack.mPackets =
204                    new AnotherPacketSource(mAudioTrack.mSource->getFormat());
205
206                if (!strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_VORBIS)) {
207                    mAudioIsVorbis = true;
208                } else {
209                    mAudioIsVorbis = false;
210                }
211            }
212        } else if (!strncasecmp(mime, "video/", 6)) {
213            if (mVideoTrack.mSource == NULL) {
214                mVideoTrack.mIndex = i;
215                mVideoTrack.mSource = track;
216                mVideoTrack.mPackets =
217                    new AnotherPacketSource(mVideoTrack.mSource->getFormat());
218
219                // check if the source requires secure buffers
220                int32_t secure;
221                if (meta->findInt32(kKeyRequiresSecureBuffers, &secure)
222                        && secure) {
223                    mIsSecure = true;
224                    if (mUIDValid) {
225                        extractor->setUID(mUID);
226                    }
227                }
228            }
229        }
230
231        if (track != NULL) {
232            mSources.push(track);
233            int64_t durationUs;
234            if (meta->findInt64(kKeyDuration, &durationUs)) {
235                if (durationUs > mDurationUs) {
236                    mDurationUs = durationUs;
237                }
238            }
239
240            int32_t bitrate;
241            if (totalBitrate >= 0 && meta->findInt32(kKeyBitRate, &bitrate)) {
242                totalBitrate += bitrate;
243            } else {
244                totalBitrate = -1;
245            }
246        }
247    }
248
249    mBitrate = totalBitrate;
250
251    return OK;
252}
253
254void NuPlayer::GenericSource::checkDrmStatus(const sp<DataSource>& dataSource) {
255    dataSource->getDrmInfo(mDecryptHandle, &mDrmManagerClient);
256    if (mDecryptHandle != NULL) {
257        CHECK(mDrmManagerClient);
258        if (RightsStatus::RIGHTS_VALID != mDecryptHandle->status) {
259            sp<AMessage> msg = dupNotify();
260            msg->setInt32("what", kWhatDrmNoLicense);
261            msg->post();
262        }
263    }
264}
265
266int64_t NuPlayer::GenericSource::getLastReadPosition() {
267    if (mAudioTrack.mSource != NULL) {
268        return mAudioTimeUs;
269    } else if (mVideoTrack.mSource != NULL) {
270        return mVideoTimeUs;
271    } else {
272        return 0;
273    }
274}
275
276status_t NuPlayer::GenericSource::setBuffers(
277        bool audio, Vector<MediaBuffer *> &buffers) {
278    if (mIsSecure && !audio) {
279        return mVideoTrack.mSource->setBuffers(buffers);
280    }
281    return INVALID_OPERATION;
282}
283
284NuPlayer::GenericSource::~GenericSource() {
285    if (mLooper != NULL) {
286        mLooper->unregisterHandler(id());
287        mLooper->stop();
288    }
289    resetDataSource();
290}
291
292void NuPlayer::GenericSource::prepareAsync() {
293    if (mLooper == NULL) {
294        mLooper = new ALooper;
295        mLooper->setName("generic");
296        mLooper->start();
297
298        mLooper->registerHandler(this);
299    }
300
301    sp<AMessage> msg = new AMessage(kWhatPrepareAsync, id());
302    msg->post();
303}
304
305void NuPlayer::GenericSource::onPrepareAsync() {
306    // delayed data source creation
307    if (mDataSource == NULL) {
308        // set to false first, if the extractor
309        // comes back as secure, set it to true then.
310        mIsSecure = false;
311
312        if (!mUri.empty()) {
313            const char* uri = mUri.c_str();
314            mIsWidevine = !strncasecmp(uri, "widevine://", 11);
315
316            if (!strncasecmp("http://", uri, 7)
317                    || !strncasecmp("https://", uri, 8)
318                    || mIsWidevine) {
319                mHttpSource = DataSource::CreateMediaHTTP(mHTTPService);
320                if (mHttpSource == NULL) {
321                    ALOGE("Failed to create http source!");
322                    notifyPreparedAndCleanup(UNKNOWN_ERROR);
323                    return;
324                }
325            }
326
327            mDataSource = DataSource::CreateFromURI(
328                   mHTTPService, uri, &mUriHeaders, &mContentType,
329                   static_cast<HTTPBase *>(mHttpSource.get()));
330        } else {
331            mIsWidevine = false;
332
333            mDataSource = new FileSource(mFd, mOffset, mLength);
334            mFd = -1;
335        }
336
337        if (mDataSource == NULL) {
338            ALOGE("Failed to create data source!");
339            notifyPreparedAndCleanup(UNKNOWN_ERROR);
340            return;
341        }
342
343        if (mDataSource->flags() & DataSource::kIsCachingDataSource) {
344            mCachedSource = static_cast<NuCachedSource2 *>(mDataSource.get());
345        }
346
347        if (mIsWidevine || mCachedSource != NULL) {
348            schedulePollBuffering();
349        }
350    }
351
352    // check initial caching status
353    status_t err = prefillCacheIfNecessary();
354    if (err != OK) {
355        if (err == -EAGAIN) {
356            (new AMessage(kWhatPrepareAsync, id()))->post(200000);
357        } else {
358            ALOGE("Failed to prefill data cache!");
359            notifyPreparedAndCleanup(UNKNOWN_ERROR);
360        }
361        return;
362    }
363
364    // init extrator from data source
365    err = initFromDataSource();
366
367    if (err != OK) {
368        ALOGE("Failed to init from data source!");
369        notifyPreparedAndCleanup(err);
370        return;
371    }
372
373    if (mVideoTrack.mSource != NULL) {
374        sp<MetaData> meta = doGetFormatMeta(false /* audio */);
375        sp<AMessage> msg = new AMessage;
376        err = convertMetaDataToMessage(meta, &msg);
377        if(err != OK) {
378            notifyPreparedAndCleanup(err);
379            return;
380        }
381        notifyVideoSizeChanged(msg);
382    }
383
384    notifyFlagsChanged(
385            (mIsSecure ? FLAG_SECURE : 0)
386            | FLAG_CAN_PAUSE
387            | FLAG_CAN_SEEK_BACKWARD
388            | FLAG_CAN_SEEK_FORWARD
389            | FLAG_CAN_SEEK);
390
391    notifyPrepared();
392}
393
394void NuPlayer::GenericSource::notifyPreparedAndCleanup(status_t err) {
395    if (err != OK) {
396        mMetaDataSize = -1ll;
397        mContentType = "";
398        mSniffedMIME = "";
399        mDataSource.clear();
400        mCachedSource.clear();
401        mHttpSource.clear();
402
403        cancelPollBuffering();
404    }
405    notifyPrepared(err);
406}
407
408status_t NuPlayer::GenericSource::prefillCacheIfNecessary() {
409    CHECK(mDataSource != NULL);
410
411    if (mCachedSource == NULL) {
412        // no prefill if the data source is not cached
413        return OK;
414    }
415
416    // We're not doing this for streams that appear to be audio-only
417    // streams to ensure that even low bandwidth streams start
418    // playing back fairly instantly.
419    if (!strncasecmp(mContentType.string(), "audio/", 6)) {
420        return OK;
421    }
422
423    // We're going to prefill the cache before trying to instantiate
424    // the extractor below, as the latter is an operation that otherwise
425    // could block on the datasource for a significant amount of time.
426    // During that time we'd be unable to abort the preparation phase
427    // without this prefill.
428
429    // Initially make sure we have at least 192 KB for the sniff
430    // to complete without blocking.
431    static const size_t kMinBytesForSniffing = 192 * 1024;
432    static const size_t kDefaultMetaSize = 200000;
433
434    status_t finalStatus;
435
436    size_t cachedDataRemaining =
437            mCachedSource->approxDataRemaining(&finalStatus);
438
439    if (finalStatus != OK || (mMetaDataSize >= 0
440            && (off64_t)cachedDataRemaining >= mMetaDataSize)) {
441        ALOGV("stop caching, status %d, "
442                "metaDataSize %lld, cachedDataRemaining %zu",
443                finalStatus, mMetaDataSize, cachedDataRemaining);
444        return OK;
445    }
446
447    ALOGV("now cached %zu bytes of data", cachedDataRemaining);
448
449    if (mMetaDataSize < 0
450            && cachedDataRemaining >= kMinBytesForSniffing) {
451        String8 tmp;
452        float confidence;
453        sp<AMessage> meta;
454        if (!mCachedSource->sniff(&tmp, &confidence, &meta)) {
455            return UNKNOWN_ERROR;
456        }
457
458        // We successfully identified the file's extractor to
459        // be, remember this mime type so we don't have to
460        // sniff it again when we call MediaExtractor::Create()
461        mSniffedMIME = tmp.string();
462
463        if (meta == NULL
464                || !meta->findInt64("meta-data-size",
465                        reinterpret_cast<int64_t*>(&mMetaDataSize))) {
466            mMetaDataSize = kDefaultMetaSize;
467        }
468
469        if (mMetaDataSize < 0ll) {
470            ALOGE("invalid metaDataSize = %lld bytes", mMetaDataSize);
471            return UNKNOWN_ERROR;
472        }
473    }
474
475    return -EAGAIN;
476}
477
478void NuPlayer::GenericSource::start() {
479    ALOGI("start");
480
481    mStopRead = false;
482    if (mAudioTrack.mSource != NULL) {
483        CHECK_EQ(mAudioTrack.mSource->start(), (status_t)OK);
484
485        postReadBuffer(MEDIA_TRACK_TYPE_AUDIO);
486    }
487
488    if (mVideoTrack.mSource != NULL) {
489        CHECK_EQ(mVideoTrack.mSource->start(), (status_t)OK);
490
491        postReadBuffer(MEDIA_TRACK_TYPE_VIDEO);
492    }
493
494    setDrmPlaybackStatusIfNeeded(Playback::START, getLastReadPosition() / 1000);
495    mStarted = true;
496}
497
498void NuPlayer::GenericSource::stop() {
499    // nothing to do, just account for DRM playback status
500    setDrmPlaybackStatusIfNeeded(Playback::STOP, 0);
501    mStarted = false;
502    if (mIsWidevine || mIsSecure) {
503        // For widevine or secure sources we need to prevent any further reads.
504        sp<AMessage> msg = new AMessage(kWhatStopWidevine, id());
505        sp<AMessage> response;
506        (void) msg->postAndAwaitResponse(&response);
507    }
508}
509
510void NuPlayer::GenericSource::pause() {
511    // nothing to do, just account for DRM playback status
512    setDrmPlaybackStatusIfNeeded(Playback::PAUSE, 0);
513    mStarted = false;
514}
515
516void NuPlayer::GenericSource::resume() {
517    // nothing to do, just account for DRM playback status
518    setDrmPlaybackStatusIfNeeded(Playback::START, getLastReadPosition() / 1000);
519    mStarted = true;
520}
521
522void NuPlayer::GenericSource::disconnect() {
523    if (mDataSource != NULL) {
524        // disconnect data source
525        if (mDataSource->flags() & DataSource::kIsCachingDataSource) {
526            static_cast<NuCachedSource2 *>(mDataSource.get())->disconnect();
527        }
528    } else if (mHttpSource != NULL) {
529        static_cast<HTTPBase *>(mHttpSource.get())->disconnect();
530    }
531}
532
533void NuPlayer::GenericSource::setDrmPlaybackStatusIfNeeded(int playbackStatus, int64_t position) {
534    if (mDecryptHandle != NULL) {
535        mDrmManagerClient->setPlaybackStatus(mDecryptHandle, playbackStatus, position);
536    }
537    mSubtitleTrack.mPackets = new AnotherPacketSource(NULL);
538    mTimedTextTrack.mPackets = new AnotherPacketSource(NULL);
539}
540
541status_t NuPlayer::GenericSource::feedMoreTSData() {
542    return OK;
543}
544
545void NuPlayer::GenericSource::schedulePollBuffering() {
546    sp<AMessage> msg = new AMessage(kWhatPollBuffering, id());
547    msg->setInt32("generation", mPollBufferingGeneration);
548    msg->post(1000000ll);
549}
550
551void NuPlayer::GenericSource::cancelPollBuffering() {
552    ++mPollBufferingGeneration;
553}
554
555void NuPlayer::GenericSource::notifyBufferingUpdate(int percentage) {
556    sp<AMessage> msg = dupNotify();
557    msg->setInt32("what", kWhatBufferingUpdate);
558    msg->setInt32("percentage", percentage);
559    msg->post();
560}
561
562void NuPlayer::GenericSource::onPollBuffering() {
563    status_t finalStatus = UNKNOWN_ERROR;
564    int64_t cachedDurationUs = 0ll;
565
566    if (mCachedSource != NULL) {
567        size_t cachedDataRemaining =
568                mCachedSource->approxDataRemaining(&finalStatus);
569
570        if (finalStatus == OK) {
571            off64_t size;
572            int64_t bitrate = 0ll;
573            if (mDurationUs > 0 && mCachedSource->getSize(&size) == OK) {
574                bitrate = size * 8000000ll / mDurationUs;
575            } else if (mBitrate > 0) {
576                bitrate = mBitrate;
577            }
578            if (bitrate > 0) {
579                cachedDurationUs = cachedDataRemaining * 8000000ll / bitrate;
580            }
581        }
582    } else if (mWVMExtractor != NULL) {
583        cachedDurationUs
584            = mWVMExtractor->getCachedDurationUs(&finalStatus);
585    }
586
587    if (finalStatus == ERROR_END_OF_STREAM) {
588        notifyBufferingUpdate(100);
589        cancelPollBuffering();
590        return;
591    } else if (cachedDurationUs > 0ll && mDurationUs > 0ll) {
592        int percentage = 100.0 * cachedDurationUs / mDurationUs;
593        if (percentage > 100) {
594            percentage = 100;
595        }
596
597        notifyBufferingUpdate(percentage);
598    }
599
600    schedulePollBuffering();
601}
602
603
604void NuPlayer::GenericSource::onMessageReceived(const sp<AMessage> &msg) {
605    switch (msg->what()) {
606      case kWhatPrepareAsync:
607      {
608          onPrepareAsync();
609          break;
610      }
611      case kWhatFetchSubtitleData:
612      {
613          fetchTextData(kWhatSendSubtitleData, MEDIA_TRACK_TYPE_SUBTITLE,
614                  mFetchSubtitleDataGeneration, mSubtitleTrack.mPackets, msg);
615          break;
616      }
617
618      case kWhatFetchTimedTextData:
619      {
620          fetchTextData(kWhatSendTimedTextData, MEDIA_TRACK_TYPE_TIMEDTEXT,
621                  mFetchTimedTextDataGeneration, mTimedTextTrack.mPackets, msg);
622          break;
623      }
624
625      case kWhatSendSubtitleData:
626      {
627          sendTextData(kWhatSubtitleData, MEDIA_TRACK_TYPE_SUBTITLE,
628                  mFetchSubtitleDataGeneration, mSubtitleTrack.mPackets, msg);
629          break;
630      }
631
632      case kWhatSendTimedTextData:
633      {
634          sendTextData(kWhatTimedTextData, MEDIA_TRACK_TYPE_TIMEDTEXT,
635                  mFetchTimedTextDataGeneration, mTimedTextTrack.mPackets, msg);
636          break;
637      }
638
639      case kWhatChangeAVSource:
640      {
641          int32_t trackIndex;
642          CHECK(msg->findInt32("trackIndex", &trackIndex));
643          const sp<MediaSource> source = mSources.itemAt(trackIndex);
644
645          Track* track;
646          const char *mime;
647          media_track_type trackType, counterpartType;
648          sp<MetaData> meta = source->getFormat();
649          meta->findCString(kKeyMIMEType, &mime);
650          if (!strncasecmp(mime, "audio/", 6)) {
651              track = &mAudioTrack;
652              trackType = MEDIA_TRACK_TYPE_AUDIO;
653              counterpartType = MEDIA_TRACK_TYPE_VIDEO;;
654          } else {
655              CHECK(!strncasecmp(mime, "video/", 6));
656              track = &mVideoTrack;
657              trackType = MEDIA_TRACK_TYPE_VIDEO;
658              counterpartType = MEDIA_TRACK_TYPE_AUDIO;;
659          }
660
661
662          if (track->mSource != NULL) {
663              track->mSource->stop();
664          }
665          track->mSource = source;
666          track->mSource->start();
667          track->mIndex = trackIndex;
668
669          int64_t timeUs, actualTimeUs;
670          const bool formatChange = true;
671          if (trackType == MEDIA_TRACK_TYPE_AUDIO) {
672              timeUs = mAudioLastDequeueTimeUs;
673          } else {
674              timeUs = mVideoLastDequeueTimeUs;
675          }
676          readBuffer(trackType, timeUs, &actualTimeUs, formatChange);
677          readBuffer(counterpartType, -1, NULL, formatChange);
678          ALOGV("timeUs %lld actualTimeUs %lld", timeUs, actualTimeUs);
679
680          break;
681      }
682      case kWhatPollBuffering:
683      {
684          int32_t generation;
685          CHECK(msg->findInt32("generation", &generation));
686          if (generation == mPollBufferingGeneration) {
687              onPollBuffering();
688          }
689          break;
690      }
691
692      case kWhatGetFormat:
693      {
694          onGetFormatMeta(msg);
695          break;
696      }
697
698      case kWhatGetSelectedTrack:
699      {
700          onGetSelectedTrack(msg);
701          break;
702      }
703
704      case kWhatSelectTrack:
705      {
706          onSelectTrack(msg);
707          break;
708      }
709
710      case kWhatSeek:
711      {
712          onSeek(msg);
713          break;
714      }
715
716      case kWhatReadBuffer:
717      {
718          onReadBuffer(msg);
719          break;
720      }
721
722      case kWhatStopWidevine:
723      {
724          // mStopRead is only used for Widevine to prevent the video source
725          // from being read while the associated video decoder is shutting down.
726          mStopRead = true;
727          if (mVideoTrack.mSource != NULL) {
728              mVideoTrack.mPackets->clear();
729          }
730          sp<AMessage> response = new AMessage;
731          uint32_t replyID;
732          CHECK(msg->senderAwaitsResponse(&replyID));
733          response->postReply(replyID);
734          break;
735      }
736      default:
737          Source::onMessageReceived(msg);
738          break;
739    }
740}
741
742void NuPlayer::GenericSource::fetchTextData(
743        uint32_t sendWhat,
744        media_track_type type,
745        int32_t curGen,
746        sp<AnotherPacketSource> packets,
747        sp<AMessage> msg) {
748    int32_t msgGeneration;
749    CHECK(msg->findInt32("generation", &msgGeneration));
750    if (msgGeneration != curGen) {
751        // stale
752        return;
753    }
754
755    int32_t avail;
756    if (packets->hasBufferAvailable(&avail)) {
757        return;
758    }
759
760    int64_t timeUs;
761    CHECK(msg->findInt64("timeUs", &timeUs));
762
763    int64_t subTimeUs;
764    readBuffer(type, timeUs, &subTimeUs);
765
766    int64_t delayUs = subTimeUs - timeUs;
767    if (msg->what() == kWhatFetchSubtitleData) {
768        const int64_t oneSecUs = 1000000ll;
769        delayUs -= oneSecUs;
770    }
771    sp<AMessage> msg2 = new AMessage(sendWhat, id());
772    msg2->setInt32("generation", msgGeneration);
773    msg2->post(delayUs < 0 ? 0 : delayUs);
774}
775
776void NuPlayer::GenericSource::sendTextData(
777        uint32_t what,
778        media_track_type type,
779        int32_t curGen,
780        sp<AnotherPacketSource> packets,
781        sp<AMessage> msg) {
782    int32_t msgGeneration;
783    CHECK(msg->findInt32("generation", &msgGeneration));
784    if (msgGeneration != curGen) {
785        // stale
786        return;
787    }
788
789    int64_t subTimeUs;
790    if (packets->nextBufferTime(&subTimeUs) != OK) {
791        return;
792    }
793
794    int64_t nextSubTimeUs;
795    readBuffer(type, -1, &nextSubTimeUs);
796
797    sp<ABuffer> buffer;
798    status_t dequeueStatus = packets->dequeueAccessUnit(&buffer);
799    if (dequeueStatus == OK) {
800        sp<AMessage> notify = dupNotify();
801        notify->setInt32("what", what);
802        notify->setBuffer("buffer", buffer);
803        notify->post();
804
805        const int64_t delayUs = nextSubTimeUs - subTimeUs;
806        msg->post(delayUs < 0 ? 0 : delayUs);
807    }
808}
809
810sp<MetaData> NuPlayer::GenericSource::getFormatMeta(bool audio) {
811    sp<AMessage> msg = new AMessage(kWhatGetFormat, id());
812    msg->setInt32("audio", audio);
813
814    sp<AMessage> response;
815    void *format;
816    status_t err = msg->postAndAwaitResponse(&response);
817    if (err == OK && response != NULL) {
818        CHECK(response->findPointer("format", &format));
819        return (MetaData *)format;
820    } else {
821        return NULL;
822    }
823}
824
825void NuPlayer::GenericSource::onGetFormatMeta(sp<AMessage> msg) const {
826    int32_t audio;
827    CHECK(msg->findInt32("audio", &audio));
828
829    sp<AMessage> response = new AMessage;
830    sp<MetaData> format = doGetFormatMeta(audio);
831    response->setPointer("format", format.get());
832
833    uint32_t replyID;
834    CHECK(msg->senderAwaitsResponse(&replyID));
835    response->postReply(replyID);
836}
837
838sp<MetaData> NuPlayer::GenericSource::doGetFormatMeta(bool audio) const {
839    sp<MediaSource> source = audio ? mAudioTrack.mSource : mVideoTrack.mSource;
840
841    if (source == NULL) {
842        return NULL;
843    }
844
845    return source->getFormat();
846}
847
848status_t NuPlayer::GenericSource::dequeueAccessUnit(
849        bool audio, sp<ABuffer> *accessUnit) {
850    Track *track = audio ? &mAudioTrack : &mVideoTrack;
851
852    if (track->mSource == NULL) {
853        return -EWOULDBLOCK;
854    }
855
856    if (mIsWidevine && !audio) {
857        // try to read a buffer as we may not have been able to the last time
858        postReadBuffer(MEDIA_TRACK_TYPE_VIDEO);
859    }
860
861    status_t finalResult;
862    if (!track->mPackets->hasBufferAvailable(&finalResult)) {
863        if (finalResult == OK) {
864            postReadBuffer(
865                    audio ? MEDIA_TRACK_TYPE_AUDIO : MEDIA_TRACK_TYPE_VIDEO);
866            return -EWOULDBLOCK;
867        }
868        return finalResult;
869    }
870
871    status_t result = track->mPackets->dequeueAccessUnit(accessUnit);
872
873    if (!track->mPackets->hasBufferAvailable(&finalResult)) {
874        postReadBuffer(audio? MEDIA_TRACK_TYPE_AUDIO : MEDIA_TRACK_TYPE_VIDEO);
875    }
876
877    if (result != OK) {
878        if (mSubtitleTrack.mSource != NULL) {
879            mSubtitleTrack.mPackets->clear();
880            mFetchSubtitleDataGeneration++;
881        }
882        if (mTimedTextTrack.mSource != NULL) {
883            mTimedTextTrack.mPackets->clear();
884            mFetchTimedTextDataGeneration++;
885        }
886        return result;
887    }
888
889    int64_t timeUs;
890    status_t eosResult; // ignored
891    CHECK((*accessUnit)->meta()->findInt64("timeUs", &timeUs));
892    if (audio) {
893        mAudioLastDequeueTimeUs = timeUs;
894    } else {
895        mVideoLastDequeueTimeUs = timeUs;
896    }
897
898    if (mSubtitleTrack.mSource != NULL
899            && !mSubtitleTrack.mPackets->hasBufferAvailable(&eosResult)) {
900        sp<AMessage> msg = new AMessage(kWhatFetchSubtitleData, id());
901        msg->setInt64("timeUs", timeUs);
902        msg->setInt32("generation", mFetchSubtitleDataGeneration);
903        msg->post();
904    }
905
906    if (mTimedTextTrack.mSource != NULL
907            && !mTimedTextTrack.mPackets->hasBufferAvailable(&eosResult)) {
908        sp<AMessage> msg = new AMessage(kWhatFetchTimedTextData, id());
909        msg->setInt64("timeUs", timeUs);
910        msg->setInt32("generation", mFetchTimedTextDataGeneration);
911        msg->post();
912    }
913
914    return result;
915}
916
917status_t NuPlayer::GenericSource::getDuration(int64_t *durationUs) {
918    *durationUs = mDurationUs;
919    return OK;
920}
921
922size_t NuPlayer::GenericSource::getTrackCount() const {
923    return mSources.size();
924}
925
926sp<AMessage> NuPlayer::GenericSource::getTrackInfo(size_t trackIndex) const {
927    size_t trackCount = mSources.size();
928    if (trackIndex >= trackCount) {
929        return NULL;
930    }
931
932    sp<AMessage> format = new AMessage();
933    sp<MetaData> meta = mSources.itemAt(trackIndex)->getFormat();
934
935    const char *mime;
936    CHECK(meta->findCString(kKeyMIMEType, &mime));
937
938    int32_t trackType;
939    if (!strncasecmp(mime, "video/", 6)) {
940        trackType = MEDIA_TRACK_TYPE_VIDEO;
941    } else if (!strncasecmp(mime, "audio/", 6)) {
942        trackType = MEDIA_TRACK_TYPE_AUDIO;
943    } else if (!strcasecmp(mime, MEDIA_MIMETYPE_TEXT_3GPP)) {
944        trackType = MEDIA_TRACK_TYPE_TIMEDTEXT;
945    } else {
946        trackType = MEDIA_TRACK_TYPE_UNKNOWN;
947    }
948    format->setInt32("type", trackType);
949
950    const char *lang;
951    if (!meta->findCString(kKeyMediaLanguage, &lang)) {
952        lang = "und";
953    }
954    format->setString("language", lang);
955
956    if (trackType == MEDIA_TRACK_TYPE_SUBTITLE) {
957        format->setString("mime", mime);
958
959        int32_t isAutoselect = 1, isDefault = 0, isForced = 0;
960        meta->findInt32(kKeyTrackIsAutoselect, &isAutoselect);
961        meta->findInt32(kKeyTrackIsDefault, &isDefault);
962        meta->findInt32(kKeyTrackIsForced, &isForced);
963
964        format->setInt32("auto", !!isAutoselect);
965        format->setInt32("default", !!isDefault);
966        format->setInt32("forced", !!isForced);
967    }
968
969    return format;
970}
971
972ssize_t NuPlayer::GenericSource::getSelectedTrack(media_track_type type) const {
973    sp<AMessage> msg = new AMessage(kWhatGetSelectedTrack, id());
974    msg->setInt32("type", type);
975
976    sp<AMessage> response;
977    int32_t index;
978    status_t err = msg->postAndAwaitResponse(&response);
979    if (err == OK && response != NULL) {
980        CHECK(response->findInt32("index", &index));
981        return index;
982    } else {
983        return -1;
984    }
985}
986
987void NuPlayer::GenericSource::onGetSelectedTrack(sp<AMessage> msg) const {
988    int32_t tmpType;
989    CHECK(msg->findInt32("type", &tmpType));
990    media_track_type type = (media_track_type)tmpType;
991
992    sp<AMessage> response = new AMessage;
993    ssize_t index = doGetSelectedTrack(type);
994    response->setInt32("index", index);
995
996    uint32_t replyID;
997    CHECK(msg->senderAwaitsResponse(&replyID));
998    response->postReply(replyID);
999}
1000
1001ssize_t NuPlayer::GenericSource::doGetSelectedTrack(media_track_type type) const {
1002    const Track *track = NULL;
1003    switch (type) {
1004    case MEDIA_TRACK_TYPE_VIDEO:
1005        track = &mVideoTrack;
1006        break;
1007    case MEDIA_TRACK_TYPE_AUDIO:
1008        track = &mAudioTrack;
1009        break;
1010    case MEDIA_TRACK_TYPE_TIMEDTEXT:
1011        track = &mTimedTextTrack;
1012        break;
1013    case MEDIA_TRACK_TYPE_SUBTITLE:
1014        track = &mSubtitleTrack;
1015        break;
1016    default:
1017        break;
1018    }
1019
1020    if (track != NULL && track->mSource != NULL) {
1021        return track->mIndex;
1022    }
1023
1024    return -1;
1025}
1026
1027status_t NuPlayer::GenericSource::selectTrack(size_t trackIndex, bool select, int64_t timeUs) {
1028    ALOGV("%s track: %zu", select ? "select" : "deselect", trackIndex);
1029    sp<AMessage> msg = new AMessage(kWhatSelectTrack, id());
1030    msg->setInt32("trackIndex", trackIndex);
1031    msg->setInt32("select", select);
1032    msg->setInt64("timeUs", timeUs);
1033
1034    sp<AMessage> response;
1035    status_t err = msg->postAndAwaitResponse(&response);
1036    if (err == OK && response != NULL) {
1037        CHECK(response->findInt32("err", &err));
1038    }
1039
1040    return err;
1041}
1042
1043void NuPlayer::GenericSource::onSelectTrack(sp<AMessage> msg) {
1044    int32_t trackIndex, select;
1045    int64_t timeUs;
1046    CHECK(msg->findInt32("trackIndex", &trackIndex));
1047    CHECK(msg->findInt32("select", &select));
1048    CHECK(msg->findInt64("timeUs", &timeUs));
1049
1050    sp<AMessage> response = new AMessage;
1051    status_t err = doSelectTrack(trackIndex, select, timeUs);
1052    response->setInt32("err", err);
1053
1054    uint32_t replyID;
1055    CHECK(msg->senderAwaitsResponse(&replyID));
1056    response->postReply(replyID);
1057}
1058
1059status_t NuPlayer::GenericSource::doSelectTrack(size_t trackIndex, bool select, int64_t timeUs) {
1060    if (trackIndex >= mSources.size()) {
1061        return BAD_INDEX;
1062    }
1063
1064    if (!select) {
1065        Track* track = NULL;
1066        if (mSubtitleTrack.mSource != NULL && trackIndex == mSubtitleTrack.mIndex) {
1067            track = &mSubtitleTrack;
1068            mFetchSubtitleDataGeneration++;
1069        } else if (mTimedTextTrack.mSource != NULL && trackIndex == mTimedTextTrack.mIndex) {
1070            track = &mTimedTextTrack;
1071            mFetchTimedTextDataGeneration++;
1072        }
1073        if (track == NULL) {
1074            return INVALID_OPERATION;
1075        }
1076        track->mSource->stop();
1077        track->mSource = NULL;
1078        track->mPackets->clear();
1079        return OK;
1080    }
1081
1082    const sp<MediaSource> source = mSources.itemAt(trackIndex);
1083    sp<MetaData> meta = source->getFormat();
1084    const char *mime;
1085    CHECK(meta->findCString(kKeyMIMEType, &mime));
1086    if (!strncasecmp(mime, "text/", 5)) {
1087        bool isSubtitle = strcasecmp(mime, MEDIA_MIMETYPE_TEXT_3GPP);
1088        Track *track = isSubtitle ? &mSubtitleTrack : &mTimedTextTrack;
1089        if (track->mSource != NULL && track->mIndex == trackIndex) {
1090            return OK;
1091        }
1092        track->mIndex = trackIndex;
1093        if (track->mSource != NULL) {
1094            track->mSource->stop();
1095        }
1096        track->mSource = mSources.itemAt(trackIndex);
1097        track->mSource->start();
1098        if (track->mPackets == NULL) {
1099            track->mPackets = new AnotherPacketSource(track->mSource->getFormat());
1100        } else {
1101            track->mPackets->clear();
1102            track->mPackets->setFormat(track->mSource->getFormat());
1103
1104        }
1105
1106        if (isSubtitle) {
1107            mFetchSubtitleDataGeneration++;
1108        } else {
1109            mFetchTimedTextDataGeneration++;
1110        }
1111
1112        status_t eosResult; // ignored
1113        if (mSubtitleTrack.mSource != NULL
1114                && !mSubtitleTrack.mPackets->hasBufferAvailable(&eosResult)) {
1115            sp<AMessage> msg = new AMessage(kWhatFetchSubtitleData, id());
1116            msg->setInt64("timeUs", timeUs);
1117            msg->setInt32("generation", mFetchSubtitleDataGeneration);
1118            msg->post();
1119        }
1120
1121        if (mTimedTextTrack.mSource != NULL
1122                && !mTimedTextTrack.mPackets->hasBufferAvailable(&eosResult)) {
1123            sp<AMessage> msg = new AMessage(kWhatFetchTimedTextData, id());
1124            msg->setInt64("timeUs", timeUs);
1125            msg->setInt32("generation", mFetchTimedTextDataGeneration);
1126            msg->post();
1127        }
1128
1129        return OK;
1130    } else if (!strncasecmp(mime, "audio/", 6) || !strncasecmp(mime, "video/", 6)) {
1131        bool audio = !strncasecmp(mime, "audio/", 6);
1132        Track *track = audio ? &mAudioTrack : &mVideoTrack;
1133        if (track->mSource != NULL && track->mIndex == trackIndex) {
1134            return OK;
1135        }
1136
1137        sp<AMessage> msg = new AMessage(kWhatChangeAVSource, id());
1138        msg->setInt32("trackIndex", trackIndex);
1139        msg->post();
1140        return OK;
1141    }
1142
1143    return INVALID_OPERATION;
1144}
1145
1146status_t NuPlayer::GenericSource::seekTo(int64_t seekTimeUs) {
1147    sp<AMessage> msg = new AMessage(kWhatSeek, id());
1148    msg->setInt64("seekTimeUs", seekTimeUs);
1149
1150    sp<AMessage> response;
1151    status_t err = msg->postAndAwaitResponse(&response);
1152    if (err == OK && response != NULL) {
1153        CHECK(response->findInt32("err", &err));
1154    }
1155
1156    return err;
1157}
1158
1159void NuPlayer::GenericSource::onSeek(sp<AMessage> msg) {
1160    int64_t seekTimeUs;
1161    CHECK(msg->findInt64("seekTimeUs", &seekTimeUs));
1162
1163    sp<AMessage> response = new AMessage;
1164    status_t err = doSeek(seekTimeUs);
1165    response->setInt32("err", err);
1166
1167    uint32_t replyID;
1168    CHECK(msg->senderAwaitsResponse(&replyID));
1169    response->postReply(replyID);
1170}
1171
1172status_t NuPlayer::GenericSource::doSeek(int64_t seekTimeUs) {
1173    // If the Widevine source is stopped, do not attempt to read any
1174    // more buffers.
1175    if (mStopRead) {
1176        return INVALID_OPERATION;
1177    }
1178    if (mVideoTrack.mSource != NULL) {
1179        int64_t actualTimeUs;
1180        readBuffer(MEDIA_TRACK_TYPE_VIDEO, seekTimeUs, &actualTimeUs);
1181
1182        seekTimeUs = actualTimeUs;
1183        mVideoLastDequeueTimeUs = seekTimeUs;
1184    }
1185
1186    if (mAudioTrack.mSource != NULL) {
1187        readBuffer(MEDIA_TRACK_TYPE_AUDIO, seekTimeUs);
1188        mAudioLastDequeueTimeUs = seekTimeUs;
1189    }
1190
1191    setDrmPlaybackStatusIfNeeded(Playback::START, seekTimeUs / 1000);
1192    if (!mStarted) {
1193        setDrmPlaybackStatusIfNeeded(Playback::PAUSE, 0);
1194    }
1195    return OK;
1196}
1197
1198sp<ABuffer> NuPlayer::GenericSource::mediaBufferToABuffer(
1199        MediaBuffer* mb,
1200        media_track_type trackType,
1201        int64_t *actualTimeUs) {
1202    bool audio = trackType == MEDIA_TRACK_TYPE_AUDIO;
1203    size_t outLength = mb->range_length();
1204
1205    if (audio && mAudioIsVorbis) {
1206        outLength += sizeof(int32_t);
1207    }
1208
1209    sp<ABuffer> ab;
1210    if (mIsSecure && !audio) {
1211        // data is already provided in the buffer
1212        ab = new ABuffer(NULL, mb->range_length());
1213        mb->add_ref();
1214        ab->setMediaBufferBase(mb);
1215    } else {
1216        ab = new ABuffer(outLength);
1217        memcpy(ab->data(),
1218               (const uint8_t *)mb->data() + mb->range_offset(),
1219               mb->range_length());
1220    }
1221
1222    if (audio && mAudioIsVorbis) {
1223        int32_t numPageSamples;
1224        if (!mb->meta_data()->findInt32(kKeyValidSamples, &numPageSamples)) {
1225            numPageSamples = -1;
1226        }
1227
1228        uint8_t* abEnd = ab->data() + mb->range_length();
1229        memcpy(abEnd, &numPageSamples, sizeof(numPageSamples));
1230    }
1231
1232    sp<AMessage> meta = ab->meta();
1233
1234    int64_t timeUs;
1235    CHECK(mb->meta_data()->findInt64(kKeyTime, &timeUs));
1236    meta->setInt64("timeUs", timeUs);
1237
1238    if (trackType == MEDIA_TRACK_TYPE_TIMEDTEXT) {
1239        const char *mime;
1240        CHECK(mTimedTextTrack.mSource != NULL
1241                && mTimedTextTrack.mSource->getFormat()->findCString(kKeyMIMEType, &mime));
1242        meta->setString("mime", mime);
1243    }
1244
1245    int64_t durationUs;
1246    if (mb->meta_data()->findInt64(kKeyDuration, &durationUs)) {
1247        meta->setInt64("durationUs", durationUs);
1248    }
1249
1250    if (trackType == MEDIA_TRACK_TYPE_SUBTITLE) {
1251        meta->setInt32("trackIndex", mSubtitleTrack.mIndex);
1252    }
1253
1254    if (actualTimeUs) {
1255        *actualTimeUs = timeUs;
1256    }
1257
1258    mb->release();
1259    mb = NULL;
1260
1261    return ab;
1262}
1263
1264void NuPlayer::GenericSource::postReadBuffer(media_track_type trackType) {
1265    Mutex::Autolock _l(mReadBufferLock);
1266
1267    if ((mPendingReadBufferTypes & (1 << trackType)) == 0) {
1268        mPendingReadBufferTypes |= (1 << trackType);
1269        sp<AMessage> msg = new AMessage(kWhatReadBuffer, id());
1270        msg->setInt32("trackType", trackType);
1271        msg->post();
1272    }
1273}
1274
1275void NuPlayer::GenericSource::onReadBuffer(sp<AMessage> msg) {
1276    int32_t tmpType;
1277    CHECK(msg->findInt32("trackType", &tmpType));
1278    media_track_type trackType = (media_track_type)tmpType;
1279    readBuffer(trackType);
1280    {
1281        // only protect the variable change, as readBuffer may
1282        // take considerable time.
1283        Mutex::Autolock _l(mReadBufferLock);
1284        mPendingReadBufferTypes &= ~(1 << trackType);
1285    }
1286}
1287
1288void NuPlayer::GenericSource::readBuffer(
1289        media_track_type trackType, int64_t seekTimeUs, int64_t *actualTimeUs, bool formatChange) {
1290    // Do not read data if Widevine source is stopped
1291    if (mStopRead) {
1292        return;
1293    }
1294    Track *track;
1295    size_t maxBuffers = 1;
1296    switch (trackType) {
1297        case MEDIA_TRACK_TYPE_VIDEO:
1298            track = &mVideoTrack;
1299            if (mIsWidevine) {
1300                maxBuffers = 2;
1301            }
1302            break;
1303        case MEDIA_TRACK_TYPE_AUDIO:
1304            track = &mAudioTrack;
1305            if (mIsWidevine) {
1306                maxBuffers = 8;
1307            } else {
1308                maxBuffers = 64;
1309            }
1310            break;
1311        case MEDIA_TRACK_TYPE_SUBTITLE:
1312            track = &mSubtitleTrack;
1313            break;
1314        case MEDIA_TRACK_TYPE_TIMEDTEXT:
1315            track = &mTimedTextTrack;
1316            break;
1317        default:
1318            TRESPASS();
1319    }
1320
1321    if (track->mSource == NULL) {
1322        return;
1323    }
1324
1325    if (actualTimeUs) {
1326        *actualTimeUs = seekTimeUs;
1327    }
1328
1329    MediaSource::ReadOptions options;
1330
1331    bool seeking = false;
1332
1333    if (seekTimeUs >= 0) {
1334        options.setSeekTo(seekTimeUs, MediaSource::ReadOptions::SEEK_PREVIOUS_SYNC);
1335        seeking = true;
1336    }
1337
1338    if (mIsWidevine) {
1339        options.setNonBlocking();
1340    }
1341
1342    for (size_t numBuffers = 0; numBuffers < maxBuffers; ) {
1343        MediaBuffer *mbuf;
1344        status_t err = track->mSource->read(&mbuf, &options);
1345
1346        options.clearSeekTo();
1347
1348        if (err == OK) {
1349            int64_t timeUs;
1350            CHECK(mbuf->meta_data()->findInt64(kKeyTime, &timeUs));
1351            if (trackType == MEDIA_TRACK_TYPE_AUDIO) {
1352                mAudioTimeUs = timeUs;
1353            } else if (trackType == MEDIA_TRACK_TYPE_VIDEO) {
1354                mVideoTimeUs = timeUs;
1355            }
1356
1357            // formatChange && seeking: track whose source is changed during selection
1358            // formatChange && !seeking: track whose source is not changed during selection
1359            // !formatChange: normal seek
1360            if ((seeking || formatChange)
1361                    && (trackType == MEDIA_TRACK_TYPE_AUDIO
1362                    || trackType == MEDIA_TRACK_TYPE_VIDEO)) {
1363                ATSParser::DiscontinuityType type = (formatChange && seeking)
1364                        ? ATSParser::DISCONTINUITY_FORMATCHANGE
1365                        : ATSParser::DISCONTINUITY_NONE;
1366                track->mPackets->queueDiscontinuity( type, NULL, true /* discard */);
1367            }
1368
1369            sp<ABuffer> buffer = mediaBufferToABuffer(mbuf, trackType, actualTimeUs);
1370            track->mPackets->queueAccessUnit(buffer);
1371            formatChange = false;
1372            seeking = false;
1373            ++numBuffers;
1374        } else if (err == WOULD_BLOCK) {
1375            break;
1376        } else if (err == INFO_FORMAT_CHANGED) {
1377#if 0
1378            track->mPackets->queueDiscontinuity(
1379                    ATSParser::DISCONTINUITY_FORMATCHANGE,
1380                    NULL,
1381                    false /* discard */);
1382#endif
1383        } else {
1384            track->mPackets->signalEOS(err);
1385            break;
1386        }
1387    }
1388}
1389
1390}  // namespace android
1391