NuPlayer.cpp revision 3de157dd8f9cd45bf9b0406268f5830887105ae1 
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
53struct NuPlayer::Action : public RefBase {
54    Action() {}
55
56    virtual void execute(NuPlayer *player) = 0;
57
58private:
59    DISALLOW_EVIL_CONSTRUCTORS(Action);
60};
61
62struct NuPlayer::SeekAction : public Action {
63    SeekAction(int64_t seekTimeUs)
64        : mSeekTimeUs(seekTimeUs) {
65    }
66
67    virtual void execute(NuPlayer *player) {
68        player->performSeek(mSeekTimeUs);
69    }
70
71private:
72    int64_t mSeekTimeUs;
73
74    DISALLOW_EVIL_CONSTRUCTORS(SeekAction);
75};
76
77struct NuPlayer::SetSurfaceAction : public Action {
78    SetSurfaceAction(const sp<NativeWindowWrapper> &wrapper)
79        : mWrapper(wrapper) {
80    }
81
82    virtual void execute(NuPlayer *player) {
83        player->performSetSurface(mWrapper);
84    }
85
86private:
87    sp<NativeWindowWrapper> mWrapper;
88
89    DISALLOW_EVIL_CONSTRUCTORS(SetSurfaceAction);
90};
91
92struct NuPlayer::ShutdownDecoderAction : public Action {
93    ShutdownDecoderAction(bool audio, bool video)
94        : mAudio(audio),
95          mVideo(video) {
96    }
97
98    virtual void execute(NuPlayer *player) {
99        player->performDecoderShutdown(mAudio, mVideo);
100    }
101
102private:
103    bool mAudio;
104    bool mVideo;
105
106    DISALLOW_EVIL_CONSTRUCTORS(ShutdownDecoderAction);
107};
108
109struct NuPlayer::PostMessageAction : public Action {
110    PostMessageAction(const sp<AMessage> &msg)
111        : mMessage(msg) {
112    }
113
114    virtual void execute(NuPlayer *) {
115        mMessage->post();
116    }
117
118private:
119    sp<AMessage> mMessage;
120
121    DISALLOW_EVIL_CONSTRUCTORS(PostMessageAction);
122};
123
124// Use this if there's no state necessary to save in order to execute
125// the action.
126struct NuPlayer::SimpleAction : public Action {
127    typedef void (NuPlayer::*ActionFunc)();
128
129    SimpleAction(ActionFunc func)
130        : mFunc(func) {
131    }
132
133    virtual void execute(NuPlayer *player) {
134        (player->*mFunc)();
135    }
136
137private:
138    ActionFunc mFunc;
139
140    DISALLOW_EVIL_CONSTRUCTORS(SimpleAction);
141};
142
143////////////////////////////////////////////////////////////////////////////////
144
145NuPlayer::NuPlayer()
146    : mUIDValid(false),
147      mSourceFlags(0),
148      mVideoIsAVC(false),
149      mOffloadAudio(false),
150      mAudioEOS(false),
151      mVideoEOS(false),
152      mScanSourcesPending(false),
153      mScanSourcesGeneration(0),
154      mPollDurationGeneration(0),
155      mTimedTextGeneration(0),
156      mTimeDiscontinuityPending(false),
157      mFlushingAudio(NONE),
158      mFlushingVideo(NONE),
159      mSkipRenderingAudioUntilMediaTimeUs(-1ll),
160      mSkipRenderingVideoUntilMediaTimeUs(-1ll),
161      mVideoLateByUs(0ll),
162      mNumFramesTotal(0ll),
163      mNumFramesDropped(0ll),
164      mVideoScalingMode(NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW),
165      mStarted(false) {
166}
167
168NuPlayer::~NuPlayer() {
169}
170
171void NuPlayer::setUID(uid_t uid) {
172    mUIDValid = true;
173    mUID = uid;
174}
175
176void NuPlayer::setDriver(const wp<NuPlayerDriver> &driver) {
177    mDriver = driver;
178}
179
180void NuPlayer::setDataSourceAsync(const sp<IStreamSource> &source) {
181    sp<AMessage> msg = new AMessage(kWhatSetDataSource, id());
182
183    sp<AMessage> notify = new AMessage(kWhatSourceNotify, id());
184
185    msg->setObject("source", new StreamingSource(notify, source));
186    msg->post();
187}
188
189static bool IsHTTPLiveURL(const char *url) {
190    if (!strncasecmp("http://", url, 7)
191            || !strncasecmp("https://", url, 8)
192            || !strncasecmp("file://", url, 7)) {
193        size_t len = strlen(url);
194        if (len >= 5 && !strcasecmp(".m3u8", &url[len - 5])) {
195            return true;
196        }
197
198        if (strstr(url,"m3u8")) {
199            return true;
200        }
201    }
202
203    return false;
204}
205
206void NuPlayer::setDataSourceAsync(
207        const sp<IMediaHTTPService> &httpService,
208        const char *url,
209        const KeyedVector<String8, String8> *headers) {
210
211    sp<AMessage> msg = new AMessage(kWhatSetDataSource, id());
212    size_t len = strlen(url);
213
214    sp<AMessage> notify = new AMessage(kWhatSourceNotify, id());
215
216    sp<Source> source;
217    if (IsHTTPLiveURL(url)) {
218        source = new HTTPLiveSource(notify, httpService, url, headers);
219    } else if (!strncasecmp(url, "rtsp://", 7)) {
220        source = new RTSPSource(
221                notify, httpService, url, headers, mUIDValid, mUID);
222    } else if ((!strncasecmp(url, "http://", 7)
223                || !strncasecmp(url, "https://", 8))
224                    && ((len >= 4 && !strcasecmp(".sdp", &url[len - 4]))
225                    || strstr(url, ".sdp?"))) {
226        source = new RTSPSource(
227                notify, httpService, url, headers, mUIDValid, mUID, true);
228    } else {
229        sp<GenericSource> genericSource =
230                new GenericSource(notify, mUIDValid, mUID);
231        // Don't set FLAG_SECURE on mSourceFlags here for widevine.
232        // The correct flags will be updated in Source::kWhatFlagsChanged
233        // handler when  GenericSource is prepared.
234
235        status_t err = genericSource->init(httpService, url, headers);
236
237        if (err == OK) {
238            source = genericSource;
239        } else {
240            ALOGE("Failed to initialize generic source!");
241        }
242    }
243    msg->setObject("source", source);
244    msg->post();
245}
246
247void NuPlayer::setDataSourceAsync(int fd, int64_t offset, int64_t length) {
248    sp<AMessage> msg = new AMessage(kWhatSetDataSource, id());
249
250    sp<AMessage> notify = new AMessage(kWhatSourceNotify, id());
251
252    sp<GenericSource> source =
253            new GenericSource(notify, mUIDValid, mUID);
254
255    status_t err = source->init(fd, offset, length);
256
257    if (err != OK) {
258        ALOGE("Failed to initialize generic source!");
259        source = NULL;
260    }
261
262    msg->setObject("source", source);
263    msg->post();
264}
265
266void NuPlayer::prepareAsync() {
267    (new AMessage(kWhatPrepare, id()))->post();
268}
269
270void NuPlayer::setVideoSurfaceTextureAsync(
271        const sp<IGraphicBufferProducer> &bufferProducer) {
272    sp<AMessage> msg = new AMessage(kWhatSetVideoNativeWindow, id());
273
274    if (bufferProducer == NULL) {
275        msg->setObject("native-window", NULL);
276    } else {
277        msg->setObject(
278                "native-window",
279                new NativeWindowWrapper(
280                    new Surface(bufferProducer)));
281    }
282
283    msg->post();
284}
285
286void NuPlayer::setAudioSink(const sp<MediaPlayerBase::AudioSink> &sink) {
287    sp<AMessage> msg = new AMessage(kWhatSetAudioSink, id());
288    msg->setObject("sink", sink);
289    msg->post();
290}
291
292void NuPlayer::start() {
293    (new AMessage(kWhatStart, id()))->post();
294}
295
296void NuPlayer::pause() {
297    (new AMessage(kWhatPause, id()))->post();
298}
299
300void NuPlayer::resume() {
301    (new AMessage(kWhatResume, id()))->post();
302}
303
304void NuPlayer::resetAsync() {
305    (new AMessage(kWhatReset, id()))->post();
306}
307
308void NuPlayer::seekToAsync(int64_t seekTimeUs) {
309    sp<AMessage> msg = new AMessage(kWhatSeek, id());
310    msg->setInt64("seekTimeUs", seekTimeUs);
311    msg->post();
312}
313
314// static
315bool NuPlayer::IsFlushingState(FlushStatus state, bool *needShutdown) {
316    switch (state) {
317        case FLUSHING_DECODER:
318            if (needShutdown != NULL) {
319                *needShutdown = false;
320            }
321            return true;
322
323        case FLUSHING_DECODER_SHUTDOWN:
324            if (needShutdown != NULL) {
325                *needShutdown = true;
326            }
327            return true;
328
329        default:
330            return false;
331    }
332}
333
334void NuPlayer::writeTrackInfo(
335        Parcel* reply, const sp<AMessage> format) const {
336    int32_t trackType;
337    CHECK(format->findInt32("type", &trackType));
338
339    AString lang;
340    CHECK(format->findString("language", &lang));
341
342    reply->writeInt32(2); // write something non-zero
343    reply->writeInt32(trackType);
344    reply->writeString16(String16(lang.c_str()));
345
346    if (trackType == MEDIA_TRACK_TYPE_SUBTITLE) {
347        AString mime;
348        CHECK(format->findString("mime", &mime));
349
350        int32_t isAuto, isDefault, isForced;
351        CHECK(format->findInt32("auto", &isAuto));
352        CHECK(format->findInt32("default", &isDefault));
353        CHECK(format->findInt32("forced", &isForced));
354
355        reply->writeString16(String16(mime.c_str()));
356        reply->writeInt32(isAuto);
357        reply->writeInt32(isDefault);
358        reply->writeInt32(isForced);
359    }
360}
361
362void NuPlayer::onMessageReceived(const sp<AMessage> &msg) {
363    switch (msg->what()) {
364        case kWhatSetDataSource:
365        {
366            ALOGV("kWhatSetDataSource");
367
368            CHECK(mSource == NULL);
369
370            status_t err = OK;
371            sp<RefBase> obj;
372            CHECK(msg->findObject("source", &obj));
373            if (obj != NULL) {
374                mSource = static_cast<Source *>(obj.get());
375                looper()->registerHandler(mSource);
376            } else {
377                err = UNKNOWN_ERROR;
378            }
379
380            CHECK(mDriver != NULL);
381            sp<NuPlayerDriver> driver = mDriver.promote();
382            if (driver != NULL) {
383                driver->notifySetDataSourceCompleted(err);
384            }
385            break;
386        }
387
388        case kWhatPrepare:
389        {
390            mSource->prepareAsync();
391            break;
392        }
393
394        case kWhatGetTrackInfo:
395        {
396            uint32_t replyID;
397            CHECK(msg->senderAwaitsResponse(&replyID));
398
399            Parcel* reply;
400            CHECK(msg->findPointer("reply", (void**)&reply));
401
402            size_t inbandTracks = 0;
403            if (mSource != NULL) {
404                inbandTracks = mSource->getTrackCount();
405            }
406
407            size_t ccTracks = 0;
408            if (mCCDecoder != NULL) {
409                ccTracks = mCCDecoder->getTrackCount();
410            }
411
412            // total track count
413            reply->writeInt32(inbandTracks + ccTracks);
414
415            // write inband tracks
416            for (size_t i = 0; i < inbandTracks; ++i) {
417                writeTrackInfo(reply, mSource->getTrackInfo(i));
418            }
419
420            // write CC track
421            for (size_t i = 0; i < ccTracks; ++i) {
422                writeTrackInfo(reply, mCCDecoder->getTrackInfo(i));
423            }
424
425            sp<AMessage> response = new AMessage;
426            response->postReply(replyID);
427            break;
428        }
429
430        case kWhatSelectTrack:
431        {
432            uint32_t replyID;
433            CHECK(msg->senderAwaitsResponse(&replyID));
434
435            size_t trackIndex;
436            int32_t select;
437            CHECK(msg->findSize("trackIndex", &trackIndex));
438            CHECK(msg->findInt32("select", &select));
439
440            status_t err = INVALID_OPERATION;
441
442            size_t inbandTracks = 0;
443            if (mSource != NULL) {
444                inbandTracks = mSource->getTrackCount();
445            }
446            size_t ccTracks = 0;
447            if (mCCDecoder != NULL) {
448                ccTracks = mCCDecoder->getTrackCount();
449            }
450
451            if (trackIndex < inbandTracks) {
452                err = mSource->selectTrack(trackIndex, select);
453
454                if (!select && err == OK) {
455                    int32_t type;
456                    sp<AMessage> info = mSource->getTrackInfo(trackIndex);
457                    if (info != NULL
458                            && info->findInt32("type", &type)
459                            && type == MEDIA_TRACK_TYPE_TIMEDTEXT) {
460                        ++mTimedTextGeneration;
461                    }
462                }
463            } else {
464                trackIndex -= inbandTracks;
465
466                if (trackIndex < ccTracks) {
467                    err = mCCDecoder->selectTrack(trackIndex, select);
468                }
469            }
470
471            sp<AMessage> response = new AMessage;
472            response->setInt32("err", err);
473
474            response->postReply(replyID);
475            break;
476        }
477
478        case kWhatPollDuration:
479        {
480            int32_t generation;
481            CHECK(msg->findInt32("generation", &generation));
482
483            if (generation != mPollDurationGeneration) {
484                // stale
485                break;
486            }
487
488            int64_t durationUs;
489            if (mDriver != NULL && mSource->getDuration(&durationUs) == OK) {
490                sp<NuPlayerDriver> driver = mDriver.promote();
491                if (driver != NULL) {
492                    driver->notifyDuration(durationUs);
493                }
494            }
495
496            msg->post(1000000ll);  // poll again in a second.
497            break;
498        }
499
500        case kWhatSetVideoNativeWindow:
501        {
502            ALOGV("kWhatSetVideoNativeWindow");
503
504            mDeferredActions.push_back(
505                    new ShutdownDecoderAction(
506                        false /* audio */, true /* video */));
507
508            sp<RefBase> obj;
509            CHECK(msg->findObject("native-window", &obj));
510
511            mDeferredActions.push_back(
512                    new SetSurfaceAction(
513                        static_cast<NativeWindowWrapper *>(obj.get())));
514
515            if (obj != NULL) {
516                // If there is a new surface texture, instantiate decoders
517                // again if possible.
518                mDeferredActions.push_back(
519                        new SimpleAction(&NuPlayer::performScanSources));
520            }
521
522            processDeferredActions();
523            break;
524        }
525
526        case kWhatSetAudioSink:
527        {
528            ALOGV("kWhatSetAudioSink");
529
530            sp<RefBase> obj;
531            CHECK(msg->findObject("sink", &obj));
532
533            mAudioSink = static_cast<MediaPlayerBase::AudioSink *>(obj.get());
534            break;
535        }
536
537        case kWhatStart:
538        {
539            ALOGV("kWhatStart");
540
541            mVideoIsAVC = false;
542            mOffloadAudio = false;
543            mAudioEOS = false;
544            mVideoEOS = false;
545            mSkipRenderingAudioUntilMediaTimeUs = -1;
546            mSkipRenderingVideoUntilMediaTimeUs = -1;
547            mVideoLateByUs = 0;
548            mNumFramesTotal = 0;
549            mNumFramesDropped = 0;
550            mStarted = true;
551
552            /* instantiate decoders now for secure playback */
553            if (mSourceFlags & Source::FLAG_SECURE) {
554                if (mNativeWindow != NULL) {
555                    instantiateDecoder(false, &mVideoDecoder);
556                }
557
558                if (mAudioSink != NULL) {
559                    instantiateDecoder(true, &mAudioDecoder);
560                }
561            }
562
563            mSource->start();
564
565            uint32_t flags = 0;
566
567            if (mSource->isRealTime()) {
568                flags |= Renderer::FLAG_REAL_TIME;
569            }
570
571            sp<MetaData> audioMeta = mSource->getFormatMeta(true /* audio */);
572            audio_stream_type_t streamType = AUDIO_STREAM_MUSIC;
573            if (mAudioSink != NULL) {
574                streamType = mAudioSink->getAudioStreamType();
575            }
576
577            sp<AMessage> videoFormat = mSource->getFormat(false /* audio */);
578
579            mOffloadAudio =
580                canOffloadStream(audioMeta, (videoFormat != NULL),
581                                 true /* is_streaming */, streamType);
582            if (mOffloadAudio) {
583                flags |= Renderer::FLAG_OFFLOAD_AUDIO;
584            }
585
586            mRenderer = new Renderer(
587                    mAudioSink,
588                    new AMessage(kWhatRendererNotify, id()),
589                    flags);
590
591            mRendererLooper = new ALooper;
592            mRendererLooper->setName("NuPlayerRenderer");
593            mRendererLooper->start(false, false, ANDROID_PRIORITY_AUDIO);
594            mRendererLooper->registerHandler(mRenderer);
595
596            postScanSources();
597            break;
598        }
599
600        case kWhatScanSources:
601        {
602            int32_t generation;
603            CHECK(msg->findInt32("generation", &generation));
604            if (generation != mScanSourcesGeneration) {
605                // Drop obsolete msg.
606                break;
607            }
608
609            mScanSourcesPending = false;
610
611            ALOGV("scanning sources haveAudio=%d, haveVideo=%d",
612                 mAudioDecoder != NULL, mVideoDecoder != NULL);
613
614            bool mHadAnySourcesBefore =
615                (mAudioDecoder != NULL) || (mVideoDecoder != NULL);
616
617            if (mNativeWindow != NULL) {
618                instantiateDecoder(false, &mVideoDecoder);
619            }
620
621            if (mAudioSink != NULL) {
622                instantiateDecoder(true, &mAudioDecoder);
623            }
624
625            if (!mHadAnySourcesBefore
626                    && (mAudioDecoder != NULL || mVideoDecoder != NULL)) {
627                // This is the first time we've found anything playable.
628
629                if (mSourceFlags & Source::FLAG_DYNAMIC_DURATION) {
630                    schedulePollDuration();
631                }
632            }
633
634            status_t err;
635            if ((err = mSource->feedMoreTSData()) != OK) {
636                if (mAudioDecoder == NULL && mVideoDecoder == NULL) {
637                    // We're not currently decoding anything (no audio or
638                    // video tracks found) and we just ran out of input data.
639
640                    if (err == ERROR_END_OF_STREAM) {
641                        notifyListener(MEDIA_PLAYBACK_COMPLETE, 0, 0);
642                    } else {
643                        notifyListener(MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, err);
644                    }
645                }
646                break;
647            }
648
649            if ((mAudioDecoder == NULL && mAudioSink != NULL)
650                    || (mVideoDecoder == NULL && mNativeWindow != NULL)) {
651                msg->post(100000ll);
652                mScanSourcesPending = true;
653            }
654            break;
655        }
656
657        case kWhatVideoNotify:
658        case kWhatAudioNotify:
659        {
660            bool audio = msg->what() == kWhatAudioNotify;
661
662            int32_t what;
663            CHECK(msg->findInt32("what", &what));
664
665            if (what == Decoder::kWhatFillThisBuffer) {
666                status_t err = feedDecoderInputData(
667                        audio, msg);
668
669                if (err == -EWOULDBLOCK) {
670                    if (mSource->feedMoreTSData() == OK) {
671                        msg->post(10000ll);
672                    }
673                }
674            } else if (what == Decoder::kWhatEOS) {
675                int32_t err;
676                CHECK(msg->findInt32("err", &err));
677
678                if (err == ERROR_END_OF_STREAM) {
679                    ALOGV("got %s decoder EOS", audio ? "audio" : "video");
680                } else {
681                    ALOGV("got %s decoder EOS w/ error %d",
682                         audio ? "audio" : "video",
683                         err);
684                }
685
686                mRenderer->queueEOS(audio, err);
687            } else if (what == Decoder::kWhatFlushCompleted) {
688                bool needShutdown;
689
690                if (audio) {
691                    CHECK(IsFlushingState(mFlushingAudio, &needShutdown));
692                    mFlushingAudio = FLUSHED;
693                } else {
694                    CHECK(IsFlushingState(mFlushingVideo, &needShutdown));
695                    mFlushingVideo = FLUSHED;
696
697                    mVideoLateByUs = 0;
698                }
699
700                ALOGV("decoder %s flush completed", audio ? "audio" : "video");
701
702                if (needShutdown) {
703                    ALOGV("initiating %s decoder shutdown",
704                         audio ? "audio" : "video");
705
706                    (audio ? mAudioDecoder : mVideoDecoder)->initiateShutdown();
707
708                    if (audio) {
709                        mFlushingAudio = SHUTTING_DOWN_DECODER;
710                    } else {
711                        mFlushingVideo = SHUTTING_DOWN_DECODER;
712                    }
713                }
714
715                finishFlushIfPossible();
716            } else if (what == Decoder::kWhatOutputFormatChanged) {
717                sp<AMessage> format;
718                CHECK(msg->findMessage("format", &format));
719
720                if (audio) {
721                    int32_t numChannels;
722                    CHECK(format->findInt32(
723                                "channel-count", &numChannels));
724
725                    int32_t sampleRate;
726                    CHECK(format->findInt32("sample-rate", &sampleRate));
727
728                    ALOGV("Audio output format changed to %d Hz, %d channels",
729                         sampleRate, numChannels);
730
731                    mAudioSink->close();
732
733                    uint32_t flags;
734                    int64_t durationUs;
735                    // FIXME: we should handle the case where the video decoder
736                    // is created after we receive the format change indication.
737                    // Current code will just make that we select deep buffer
738                    // with video which should not be a problem as it should
739                    // not prevent from keeping A/V sync.
740                    if (mVideoDecoder == NULL &&
741                            mSource->getDuration(&durationUs) == OK &&
742                            durationUs
743                                > AUDIO_SINK_MIN_DEEP_BUFFER_DURATION_US) {
744                        flags = AUDIO_OUTPUT_FLAG_DEEP_BUFFER;
745                    } else {
746                        flags = AUDIO_OUTPUT_FLAG_NONE;
747                    }
748
749                    int32_t channelMask;
750                    if (!format->findInt32("channel-mask", &channelMask)) {
751                        channelMask = CHANNEL_MASK_USE_CHANNEL_ORDER;
752                    }
753
754                    if (mOffloadAudio) {
755                        audio_format_t audioFormat = AUDIO_FORMAT_PCM_16_BIT;
756                        audio_offload_info_t offloadInfo =
757                                AUDIO_INFO_INITIALIZER;
758
759                        AString mime;
760                        CHECK(format->findString("mime", &mime));
761
762                        status_t err =
763                            mapMimeToAudioFormat(audioFormat, mime.c_str());
764                        if (err != OK) {
765                            ALOGE("Couldn't map mime \"%s\" to a valid "
766                                    "audio_format", mime.c_str());
767                            mOffloadAudio = false;
768                        } else {
769                            ALOGV("Mime \"%s\" mapped to audio_format 0x%x",
770                                    mime.c_str(), audioFormat);
771
772                            int32_t aacProfile = -1;
773                            if (audioFormat == AUDIO_FORMAT_AAC
774                                    && format->findInt32("aac-profile", &aacProfile)) {
775                                // Redefine AAC format as per aac profile
776                                mapAACProfileToAudioFormat(
777                                        audioFormat,
778                                        aacProfile);
779                            }
780
781                            flags |= AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD;
782
783                            offloadInfo.duration_us = -1;
784                            format->findInt64(
785                                    "durationUs", &offloadInfo.duration_us);
786
787                            int avgBitRate = -1;
788                            format->findInt32("bit-rate", &avgBitRate);
789
790                            offloadInfo.sample_rate = sampleRate;
791                            offloadInfo.channel_mask = channelMask;
792                            offloadInfo.format = audioFormat;
793                            offloadInfo.stream_type = AUDIO_STREAM_MUSIC;
794                            offloadInfo.bit_rate = avgBitRate;
795                            offloadInfo.has_video = (mVideoDecoder != NULL);
796                            offloadInfo.is_streaming = true;
797
798                            ALOGV("try to open AudioSink in offload mode");
799                            err = mAudioSink->open(
800                                    sampleRate,
801                                    numChannels,
802                                    (audio_channel_mask_t)channelMask,
803                                    audioFormat,
804                                    8 /* bufferCount */,
805                                    &NuPlayer::Renderer::AudioSinkCallback,
806                                    mRenderer.get(),
807                                    (audio_output_flags_t)flags,
808                                    &offloadInfo);
809
810                            if (err == OK) {
811                                // If the playback is offloaded to h/w, we pass
812                                // the HAL some metadata information.
813                                // We don't want to do this for PCM because it
814                                // will be going through the AudioFlinger mixer
815                                // before reaching the hardware.
816                                sp<MetaData> audioMeta =
817                                    mSource->getFormatMeta(true /* audio */);
818                                sendMetaDataToHal(mAudioSink, audioMeta);
819
820                                err = mAudioSink->start();
821                            }
822                        }
823
824                        if (err != OK) {
825                            // Clean up, fall back to non offload mode.
826                            mAudioSink->close();
827                            mAudioDecoder.clear();
828                            mRenderer->signalDisableOffloadAudio();
829                            mOffloadAudio = false;
830
831                            instantiateDecoder(
832                                    true /* audio */, &mAudioDecoder);
833                        }
834                    }
835
836                    if (!mOffloadAudio) {
837                        flags &= ~AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD;
838                        ALOGV("open AudioSink in NON-offload mode");
839                        CHECK_EQ(mAudioSink->open(
840                                    sampleRate,
841                                    numChannels,
842                                    (audio_channel_mask_t)channelMask,
843                                    AUDIO_FORMAT_PCM_16_BIT,
844                                    8 /* bufferCount */,
845                                    NULL,
846                                    NULL,
847                                    (audio_output_flags_t)flags),
848                                 (status_t)OK);
849                        mAudioSink->start();
850                    }
851
852                    mRenderer->signalAudioSinkChanged();
853                } else {
854                    // video
855
856                    int32_t width, height;
857                    CHECK(format->findInt32("width", &width));
858                    CHECK(format->findInt32("height", &height));
859
860                    int32_t cropLeft, cropTop, cropRight, cropBottom;
861                    CHECK(format->findRect(
862                                "crop",
863                                &cropLeft, &cropTop, &cropRight, &cropBottom));
864
865                    int32_t displayWidth = cropRight - cropLeft + 1;
866                    int32_t displayHeight = cropBottom - cropTop + 1;
867
868                    ALOGV("Video output format changed to %d x %d "
869                         "(crop: %d x %d @ (%d, %d))",
870                         width, height,
871                         displayWidth,
872                         displayHeight,
873                         cropLeft, cropTop);
874
875                    sp<AMessage> videoInputFormat =
876                        mSource->getFormat(false /* audio */);
877
878                    // Take into account sample aspect ratio if necessary:
879                    int32_t sarWidth, sarHeight;
880                    if (videoInputFormat->findInt32("sar-width", &sarWidth)
881                            && videoInputFormat->findInt32(
882                                "sar-height", &sarHeight)) {
883                        ALOGV("Sample aspect ratio %d : %d",
884                              sarWidth, sarHeight);
885
886                        displayWidth = (displayWidth * sarWidth) / sarHeight;
887
888                        ALOGV("display dimensions %d x %d",
889                              displayWidth, displayHeight);
890                    }
891
892                    int32_t rotationDegrees;
893                    if (!videoInputFormat->findInt32(
894                            "rotation-degrees", &rotationDegrees)) {
895                        rotationDegrees = 0;
896                    }
897
898                    if (rotationDegrees == 90 || rotationDegrees == 270) {
899                        notifyListener(
900                                MEDIA_SET_VIDEO_SIZE,
901                                displayHeight,
902                                displayWidth);
903                    } else {
904                        notifyListener(
905                                MEDIA_SET_VIDEO_SIZE,
906                                displayWidth,
907                                displayHeight);
908                    }
909                }
910            } else if (what == Decoder::kWhatShutdownCompleted) {
911                ALOGV("%s shutdown completed", audio ? "audio" : "video");
912                if (audio) {
913                    mAudioDecoder.clear();
914
915                    CHECK_EQ((int)mFlushingAudio, (int)SHUTTING_DOWN_DECODER);
916                    mFlushingAudio = SHUT_DOWN;
917                } else {
918                    mVideoDecoder.clear();
919
920                    CHECK_EQ((int)mFlushingVideo, (int)SHUTTING_DOWN_DECODER);
921                    mFlushingVideo = SHUT_DOWN;
922                }
923
924                finishFlushIfPossible();
925            } else if (what == Decoder::kWhatError) {
926                ALOGE("Received error from %s decoder, aborting playback.",
927                     audio ? "audio" : "video");
928
929                mRenderer->queueEOS(audio, UNKNOWN_ERROR);
930            } else if (what == Decoder::kWhatDrainThisBuffer) {
931                renderBuffer(audio, msg);
932            } else {
933                ALOGV("Unhandled decoder notification %d '%c%c%c%c'.",
934                      what,
935                      what >> 24,
936                      (what >> 16) & 0xff,
937                      (what >> 8) & 0xff,
938                      what & 0xff);
939            }
940
941            break;
942        }
943
944        case kWhatRendererNotify:
945        {
946            int32_t what;
947            CHECK(msg->findInt32("what", &what));
948
949            if (what == Renderer::kWhatEOS) {
950                int32_t audio;
951                CHECK(msg->findInt32("audio", &audio));
952
953                int32_t finalResult;
954                CHECK(msg->findInt32("finalResult", &finalResult));
955
956                if (audio) {
957                    mAudioEOS = true;
958                } else {
959                    mVideoEOS = true;
960                }
961
962                if (finalResult == ERROR_END_OF_STREAM) {
963                    ALOGV("reached %s EOS", audio ? "audio" : "video");
964                } else {
965                    ALOGE("%s track encountered an error (%d)",
966                         audio ? "audio" : "video", finalResult);
967
968                    notifyListener(
969                            MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, finalResult);
970                }
971
972                if ((mAudioEOS || mAudioDecoder == NULL)
973                        && (mVideoEOS || mVideoDecoder == NULL)) {
974                    notifyListener(MEDIA_PLAYBACK_COMPLETE, 0, 0);
975                }
976            } else if (what == Renderer::kWhatPosition) {
977                int64_t positionUs;
978                CHECK(msg->findInt64("positionUs", &positionUs));
979
980                CHECK(msg->findInt64("videoLateByUs", &mVideoLateByUs));
981
982                if (mDriver != NULL) {
983                    sp<NuPlayerDriver> driver = mDriver.promote();
984                    if (driver != NULL) {
985                        driver->notifyPosition(positionUs);
986
987                        driver->notifyFrameStats(
988                                mNumFramesTotal, mNumFramesDropped);
989                    }
990                }
991            } else if (what == Renderer::kWhatFlushComplete) {
992                int32_t audio;
993                CHECK(msg->findInt32("audio", &audio));
994
995                ALOGV("renderer %s flush completed.", audio ? "audio" : "video");
996            } else if (what == Renderer::kWhatVideoRenderingStart) {
997                notifyListener(MEDIA_INFO, MEDIA_INFO_RENDERING_START, 0);
998            } else if (what == Renderer::kWhatMediaRenderingStart) {
999                ALOGV("media rendering started");
1000                notifyListener(MEDIA_STARTED, 0, 0);
1001            } else if (what == Renderer::kWhatAudioOffloadTearDown) {
1002                ALOGV("Tear down audio offload, fall back to s/w path");
1003                int64_t positionUs;
1004                CHECK(msg->findInt64("positionUs", &positionUs));
1005                mAudioSink->close();
1006                mAudioDecoder.clear();
1007                mRenderer->flush(true /* audio */);
1008                if (mVideoDecoder != NULL) {
1009                    mRenderer->flush(false /* audio */);
1010                }
1011                mRenderer->signalDisableOffloadAudio();
1012                mOffloadAudio = false;
1013
1014                performSeek(positionUs);
1015                instantiateDecoder(true /* audio */, &mAudioDecoder);
1016            }
1017            break;
1018        }
1019
1020        case kWhatMoreDataQueued:
1021        {
1022            break;
1023        }
1024
1025        case kWhatReset:
1026        {
1027            ALOGV("kWhatReset");
1028
1029            mDeferredActions.push_back(
1030                    new ShutdownDecoderAction(
1031                        true /* audio */, true /* video */));
1032
1033            mDeferredActions.push_back(
1034                    new SimpleAction(&NuPlayer::performReset));
1035
1036            processDeferredActions();
1037            break;
1038        }
1039
1040        case kWhatSeek:
1041        {
1042            int64_t seekTimeUs;
1043            CHECK(msg->findInt64("seekTimeUs", &seekTimeUs));
1044
1045            ALOGV("kWhatSeek seekTimeUs=%lld us", seekTimeUs);
1046
1047            mDeferredActions.push_back(
1048                    new SimpleAction(&NuPlayer::performDecoderFlush));
1049
1050            mDeferredActions.push_back(new SeekAction(seekTimeUs));
1051
1052            processDeferredActions();
1053            break;
1054        }
1055
1056        case kWhatPause:
1057        {
1058            CHECK(mRenderer != NULL);
1059            mSource->pause();
1060            mRenderer->pause();
1061            break;
1062        }
1063
1064        case kWhatResume:
1065        {
1066            CHECK(mRenderer != NULL);
1067            mSource->resume();
1068            mRenderer->resume();
1069            break;
1070        }
1071
1072        case kWhatSourceNotify:
1073        {
1074            onSourceNotify(msg);
1075            break;
1076        }
1077
1078        case kWhatClosedCaptionNotify:
1079        {
1080            onClosedCaptionNotify(msg);
1081            break;
1082        }
1083
1084        default:
1085            TRESPASS();
1086            break;
1087    }
1088}
1089
1090void NuPlayer::finishFlushIfPossible() {
1091    if (mFlushingAudio != FLUSHED && mFlushingAudio != SHUT_DOWN) {
1092        return;
1093    }
1094
1095    if (mFlushingVideo != FLUSHED && mFlushingVideo != SHUT_DOWN) {
1096        return;
1097    }
1098
1099    ALOGV("both audio and video are flushed now.");
1100
1101    if (mTimeDiscontinuityPending) {
1102        mRenderer->signalTimeDiscontinuity();
1103        mTimeDiscontinuityPending = false;
1104    }
1105
1106    if (mAudioDecoder != NULL) {
1107        mAudioDecoder->signalResume();
1108    }
1109
1110    if (mVideoDecoder != NULL) {
1111        mVideoDecoder->signalResume();
1112    }
1113
1114    mFlushingAudio = NONE;
1115    mFlushingVideo = NONE;
1116
1117    processDeferredActions();
1118}
1119
1120void NuPlayer::postScanSources() {
1121    if (mScanSourcesPending) {
1122        return;
1123    }
1124
1125    sp<AMessage> msg = new AMessage(kWhatScanSources, id());
1126    msg->setInt32("generation", mScanSourcesGeneration);
1127    msg->post();
1128
1129    mScanSourcesPending = true;
1130}
1131
1132status_t NuPlayer::instantiateDecoder(bool audio, sp<Decoder> *decoder) {
1133    if (*decoder != NULL) {
1134        return OK;
1135    }
1136
1137    sp<AMessage> format = mSource->getFormat(audio);
1138
1139    if (format == NULL) {
1140        return -EWOULDBLOCK;
1141    }
1142
1143    if (!audio) {
1144        AString mime;
1145        CHECK(format->findString("mime", &mime));
1146        mVideoIsAVC = !strcasecmp(MEDIA_MIMETYPE_VIDEO_AVC, mime.c_str());
1147
1148        sp<AMessage> ccNotify = new AMessage(kWhatClosedCaptionNotify, id());
1149        mCCDecoder = new CCDecoder(ccNotify);
1150
1151        if (mSourceFlags & Source::FLAG_SECURE) {
1152            format->setInt32("secure", true);
1153        }
1154    }
1155
1156    sp<AMessage> notify =
1157        new AMessage(audio ? kWhatAudioNotify : kWhatVideoNotify,
1158                     id());
1159
1160    if (audio) {
1161        if (mOffloadAudio) {
1162            *decoder = new DecoderPassThrough(notify);
1163        } else {
1164            *decoder = new Decoder(notify);
1165        }
1166    } else {
1167        *decoder = new Decoder(notify, mNativeWindow);
1168    }
1169    (*decoder)->init();
1170    (*decoder)->configure(format);
1171
1172    // allocate buffers to decrypt widevine source buffers
1173    if (!audio && (mSourceFlags & Source::FLAG_SECURE)) {
1174        Vector<sp<ABuffer> > inputBufs;
1175        CHECK_EQ((*decoder)->getInputBuffers(&inputBufs), (status_t)OK);
1176
1177        Vector<MediaBuffer *> mediaBufs;
1178        for (size_t i = 0; i < inputBufs.size(); i++) {
1179            const sp<ABuffer> &buffer = inputBufs[i];
1180            MediaBuffer *mbuf = new MediaBuffer(buffer->data(), buffer->size());
1181            mediaBufs.push(mbuf);
1182        }
1183
1184        status_t err = mSource->setBuffers(audio, mediaBufs);
1185        if (err != OK) {
1186            for (size_t i = 0; i < mediaBufs.size(); ++i) {
1187                mediaBufs[i]->release();
1188            }
1189            mediaBufs.clear();
1190            ALOGE("Secure source didn't support secure mediaBufs.");
1191            return err;
1192        }
1193    }
1194    return OK;
1195}
1196
1197status_t NuPlayer::feedDecoderInputData(bool audio, const sp<AMessage> &msg) {
1198    sp<AMessage> reply;
1199    CHECK(msg->findMessage("reply", &reply));
1200
1201    if ((audio && mFlushingAudio != NONE
1202                && mFlushingAudio != AWAITING_DISCONTINUITY)
1203            || (!audio && mFlushingVideo != NONE
1204                       && mFlushingVideo != AWAITING_DISCONTINUITY)) {
1205        return -EWOULDBLOCK;
1206    }
1207
1208    sp<ABuffer> accessUnit;
1209
1210    bool dropAccessUnit;
1211    do {
1212        status_t err = mSource->dequeueAccessUnit(audio, &accessUnit);
1213
1214        if (err == -EWOULDBLOCK) {
1215            return err;
1216        } else if (err != OK) {
1217            if (err == INFO_DISCONTINUITY) {
1218                int32_t type;
1219                CHECK(accessUnit->meta()->findInt32("discontinuity", &type));
1220
1221                bool formatChange =
1222                    (audio &&
1223                     (type & ATSParser::DISCONTINUITY_AUDIO_FORMAT))
1224                    || (!audio &&
1225                            (type & ATSParser::DISCONTINUITY_VIDEO_FORMAT));
1226
1227                bool timeChange = (type & ATSParser::DISCONTINUITY_TIME) != 0;
1228
1229                ALOGI("%s discontinuity (formatChange=%d, time=%d)",
1230                     audio ? "audio" : "video", formatChange, timeChange);
1231
1232                if (audio) {
1233                    mSkipRenderingAudioUntilMediaTimeUs = -1;
1234                } else {
1235                    mSkipRenderingVideoUntilMediaTimeUs = -1;
1236                }
1237
1238                if (timeChange) {
1239                    sp<AMessage> extra;
1240                    if (accessUnit->meta()->findMessage("extra", &extra)
1241                            && extra != NULL) {
1242                        int64_t resumeAtMediaTimeUs;
1243                        if (extra->findInt64(
1244                                    "resume-at-mediatimeUs", &resumeAtMediaTimeUs)) {
1245                            ALOGI("suppressing rendering of %s until %lld us",
1246                                    audio ? "audio" : "video", resumeAtMediaTimeUs);
1247
1248                            if (audio) {
1249                                mSkipRenderingAudioUntilMediaTimeUs =
1250                                    resumeAtMediaTimeUs;
1251                            } else {
1252                                mSkipRenderingVideoUntilMediaTimeUs =
1253                                    resumeAtMediaTimeUs;
1254                            }
1255                        }
1256                    }
1257                }
1258
1259                mTimeDiscontinuityPending =
1260                    mTimeDiscontinuityPending || timeChange;
1261
1262                if (mFlushingAudio == NONE && mFlushingVideo == NONE) {
1263                    // And we'll resume scanning sources once we're done
1264                    // flushing.
1265                    mDeferredActions.push_front(
1266                            new SimpleAction(
1267                                &NuPlayer::performScanSources));
1268                }
1269
1270                if (formatChange || timeChange) {
1271
1272                    sp<AMessage> newFormat = mSource->getFormat(audio);
1273                    sp<Decoder> &decoder = audio ? mAudioDecoder : mVideoDecoder;
1274                    if (formatChange && !decoder->supportsSeamlessFormatChange(newFormat)) {
1275                        flushDecoder(audio, /* needShutdown = */ true);
1276                    } else {
1277                        flushDecoder(audio, /* needShutdown = */ false);
1278                        err = OK;
1279                    }
1280                } else {
1281                    // This stream is unaffected by the discontinuity
1282
1283                    if (audio) {
1284                        mFlushingAudio = FLUSHED;
1285                    } else {
1286                        mFlushingVideo = FLUSHED;
1287                    }
1288
1289                    finishFlushIfPossible();
1290
1291                    return -EWOULDBLOCK;
1292                }
1293            }
1294
1295            reply->setInt32("err", err);
1296            reply->post();
1297            return OK;
1298        }
1299
1300        if (!audio) {
1301            ++mNumFramesTotal;
1302        }
1303
1304        dropAccessUnit = false;
1305        if (!audio
1306                && !(mSourceFlags & Source::FLAG_SECURE)
1307                && mVideoLateByUs > 100000ll
1308                && mVideoIsAVC
1309                && !IsAVCReferenceFrame(accessUnit)) {
1310            dropAccessUnit = true;
1311            ++mNumFramesDropped;
1312        }
1313    } while (dropAccessUnit);
1314
1315    // ALOGV("returned a valid buffer of %s data", audio ? "audio" : "video");
1316
1317#if 0
1318    int64_t mediaTimeUs;
1319    CHECK(accessUnit->meta()->findInt64("timeUs", &mediaTimeUs));
1320    ALOGV("feeding %s input buffer at media time %.2f secs",
1321         audio ? "audio" : "video",
1322         mediaTimeUs / 1E6);
1323#endif
1324
1325    if (!audio) {
1326        mCCDecoder->decode(accessUnit);
1327    }
1328
1329    reply->setBuffer("buffer", accessUnit);
1330    reply->post();
1331
1332    return OK;
1333}
1334
1335void NuPlayer::renderBuffer(bool audio, const sp<AMessage> &msg) {
1336    // ALOGV("renderBuffer %s", audio ? "audio" : "video");
1337
1338    sp<AMessage> reply;
1339    CHECK(msg->findMessage("reply", &reply));
1340
1341    if (IsFlushingState(audio ? mFlushingAudio : mFlushingVideo)) {
1342        // We're currently attempting to flush the decoder, in order
1343        // to complete this, the decoder wants all its buffers back,
1344        // so we don't want any output buffers it sent us (from before
1345        // we initiated the flush) to be stuck in the renderer's queue.
1346
1347        ALOGV("we're still flushing the %s decoder, sending its output buffer"
1348             " right back.", audio ? "audio" : "video");
1349
1350        reply->post();
1351        return;
1352    }
1353
1354    sp<ABuffer> buffer;
1355    CHECK(msg->findBuffer("buffer", &buffer));
1356
1357    int64_t mediaTimeUs;
1358    CHECK(buffer->meta()->findInt64("timeUs", &mediaTimeUs));
1359
1360    int64_t &skipUntilMediaTimeUs =
1361        audio
1362            ? mSkipRenderingAudioUntilMediaTimeUs
1363            : mSkipRenderingVideoUntilMediaTimeUs;
1364
1365    if (skipUntilMediaTimeUs >= 0) {
1366
1367        if (mediaTimeUs < skipUntilMediaTimeUs) {
1368            ALOGV("dropping %s buffer at time %lld as requested.",
1369                 audio ? "audio" : "video",
1370                 mediaTimeUs);
1371
1372            reply->post();
1373            return;
1374        }
1375
1376        skipUntilMediaTimeUs = -1;
1377    }
1378
1379    if (!audio && mCCDecoder->isSelected()) {
1380        mCCDecoder->display(mediaTimeUs);
1381    }
1382
1383    mRenderer->queueBuffer(audio, buffer, reply);
1384}
1385
1386void NuPlayer::notifyListener(int msg, int ext1, int ext2, const Parcel *in) {
1387    if (mDriver == NULL) {
1388        return;
1389    }
1390
1391    sp<NuPlayerDriver> driver = mDriver.promote();
1392
1393    if (driver == NULL) {
1394        return;
1395    }
1396
1397    driver->notifyListener(msg, ext1, ext2, in);
1398}
1399
1400void NuPlayer::flushDecoder(bool audio, bool needShutdown) {
1401    ALOGV("[%s] flushDecoder needShutdown=%d",
1402          audio ? "audio" : "video", needShutdown);
1403
1404    if ((audio && mAudioDecoder == NULL) || (!audio && mVideoDecoder == NULL)) {
1405        ALOGI("flushDecoder %s without decoder present",
1406             audio ? "audio" : "video");
1407    }
1408
1409    // Make sure we don't continue to scan sources until we finish flushing.
1410    ++mScanSourcesGeneration;
1411    mScanSourcesPending = false;
1412
1413    (audio ? mAudioDecoder : mVideoDecoder)->signalFlush();
1414    mRenderer->flush(audio);
1415
1416    FlushStatus newStatus =
1417        needShutdown ? FLUSHING_DECODER_SHUTDOWN : FLUSHING_DECODER;
1418
1419    if (audio) {
1420        CHECK(mFlushingAudio == NONE
1421                || mFlushingAudio == AWAITING_DISCONTINUITY);
1422
1423        mFlushingAudio = newStatus;
1424
1425        if (mFlushingVideo == NONE) {
1426            mFlushingVideo = (mVideoDecoder != NULL)
1427                ? AWAITING_DISCONTINUITY
1428                : FLUSHED;
1429        }
1430    } else {
1431        CHECK(mFlushingVideo == NONE
1432                || mFlushingVideo == AWAITING_DISCONTINUITY);
1433
1434        mFlushingVideo = newStatus;
1435
1436        if (mFlushingAudio == NONE) {
1437            mFlushingAudio = (mAudioDecoder != NULL)
1438                ? AWAITING_DISCONTINUITY
1439                : FLUSHED;
1440        }
1441    }
1442}
1443
1444sp<AMessage> NuPlayer::Source::getFormat(bool audio) {
1445    sp<MetaData> meta = getFormatMeta(audio);
1446
1447    if (meta == NULL) {
1448        return NULL;
1449    }
1450
1451    sp<AMessage> msg = new AMessage;
1452
1453    if(convertMetaDataToMessage(meta, &msg) == OK) {
1454        return msg;
1455    }
1456    return NULL;
1457}
1458
1459status_t NuPlayer::setVideoScalingMode(int32_t mode) {
1460    mVideoScalingMode = mode;
1461    if (mNativeWindow != NULL) {
1462        status_t ret = native_window_set_scaling_mode(
1463                mNativeWindow->getNativeWindow().get(), mVideoScalingMode);
1464        if (ret != OK) {
1465            ALOGE("Failed to set scaling mode (%d): %s",
1466                -ret, strerror(-ret));
1467            return ret;
1468        }
1469    }
1470    return OK;
1471}
1472
1473status_t NuPlayer::getTrackInfo(Parcel* reply) const {
1474    sp<AMessage> msg = new AMessage(kWhatGetTrackInfo, id());
1475    msg->setPointer("reply", reply);
1476
1477    sp<AMessage> response;
1478    status_t err = msg->postAndAwaitResponse(&response);
1479    return err;
1480}
1481
1482status_t NuPlayer::selectTrack(size_t trackIndex, bool select) {
1483    sp<AMessage> msg = new AMessage(kWhatSelectTrack, id());
1484    msg->setSize("trackIndex", trackIndex);
1485    msg->setInt32("select", select);
1486
1487    sp<AMessage> response;
1488    status_t err = msg->postAndAwaitResponse(&response);
1489
1490    if (err != OK) {
1491        return err;
1492    }
1493
1494    if (!response->findInt32("err", &err)) {
1495        err = OK;
1496    }
1497
1498    return err;
1499}
1500
1501void NuPlayer::schedulePollDuration() {
1502    sp<AMessage> msg = new AMessage(kWhatPollDuration, id());
1503    msg->setInt32("generation", mPollDurationGeneration);
1504    msg->post();
1505}
1506
1507void NuPlayer::cancelPollDuration() {
1508    ++mPollDurationGeneration;
1509}
1510
1511void NuPlayer::processDeferredActions() {
1512    while (!mDeferredActions.empty()) {
1513        // We won't execute any deferred actions until we're no longer in
1514        // an intermediate state, i.e. one more more decoders are currently
1515        // flushing or shutting down.
1516
1517        if (mRenderer != NULL) {
1518            // There's an edge case where the renderer owns all output
1519            // buffers and is paused, therefore the decoder will not read
1520            // more input data and will never encounter the matching
1521            // discontinuity. To avoid this, we resume the renderer.
1522
1523            if (mFlushingAudio == AWAITING_DISCONTINUITY
1524                    || mFlushingVideo == AWAITING_DISCONTINUITY) {
1525                mRenderer->resume();
1526            }
1527        }
1528
1529        if (mFlushingAudio != NONE || mFlushingVideo != NONE) {
1530            // We're currently flushing, postpone the reset until that's
1531            // completed.
1532
1533            ALOGV("postponing action mFlushingAudio=%d, mFlushingVideo=%d",
1534                  mFlushingAudio, mFlushingVideo);
1535
1536            break;
1537        }
1538
1539        sp<Action> action = *mDeferredActions.begin();
1540        mDeferredActions.erase(mDeferredActions.begin());
1541
1542        action->execute(this);
1543    }
1544}
1545
1546void NuPlayer::performSeek(int64_t seekTimeUs) {
1547    ALOGV("performSeek seekTimeUs=%lld us (%.2f secs)",
1548          seekTimeUs,
1549          seekTimeUs / 1E6);
1550
1551    mSource->seekTo(seekTimeUs);
1552    ++mTimedTextGeneration;
1553
1554    if (mDriver != NULL) {
1555        sp<NuPlayerDriver> driver = mDriver.promote();
1556        if (driver != NULL) {
1557            driver->notifyPosition(seekTimeUs);
1558            driver->notifySeekComplete();
1559        }
1560    }
1561
1562    // everything's flushed, continue playback.
1563}
1564
1565void NuPlayer::performDecoderFlush() {
1566    ALOGV("performDecoderFlush");
1567
1568    if (mAudioDecoder == NULL && mVideoDecoder == NULL) {
1569        return;
1570    }
1571
1572    mTimeDiscontinuityPending = true;
1573
1574    if (mAudioDecoder != NULL) {
1575        flushDecoder(true /* audio */, false /* needShutdown */);
1576    }
1577
1578    if (mVideoDecoder != NULL) {
1579        flushDecoder(false /* audio */, false /* needShutdown */);
1580    }
1581}
1582
1583void NuPlayer::performDecoderShutdown(bool audio, bool video) {
1584    ALOGV("performDecoderShutdown audio=%d, video=%d", audio, video);
1585
1586    if ((!audio || mAudioDecoder == NULL)
1587            && (!video || mVideoDecoder == NULL)) {
1588        return;
1589    }
1590
1591    mTimeDiscontinuityPending = true;
1592
1593    if (mFlushingAudio == NONE && (!audio || mAudioDecoder == NULL)) {
1594        mFlushingAudio = FLUSHED;
1595    }
1596
1597    if (mFlushingVideo == NONE && (!video || mVideoDecoder == NULL)) {
1598        mFlushingVideo = FLUSHED;
1599    }
1600
1601    if (audio && mAudioDecoder != NULL) {
1602        flushDecoder(true /* audio */, true /* needShutdown */);
1603    }
1604
1605    if (video && mVideoDecoder != NULL) {
1606        flushDecoder(false /* audio */, true /* needShutdown */);
1607    }
1608}
1609
1610void NuPlayer::performReset() {
1611    ALOGV("performReset");
1612
1613    CHECK(mAudioDecoder == NULL);
1614    CHECK(mVideoDecoder == NULL);
1615
1616    cancelPollDuration();
1617
1618    ++mScanSourcesGeneration;
1619    mScanSourcesPending = false;
1620
1621    if (mRendererLooper != NULL) {
1622        if (mRenderer != NULL) {
1623            mRendererLooper->unregisterHandler(mRenderer->id());
1624        }
1625        mRendererLooper->stop();
1626        mRendererLooper.clear();
1627    }
1628    mRenderer.clear();
1629
1630    if (mSource != NULL) {
1631        mSource->stop();
1632
1633        looper()->unregisterHandler(mSource->id());
1634
1635        mSource.clear();
1636    }
1637
1638    if (mDriver != NULL) {
1639        sp<NuPlayerDriver> driver = mDriver.promote();
1640        if (driver != NULL) {
1641            driver->notifyResetComplete();
1642        }
1643    }
1644
1645    mStarted = false;
1646}
1647
1648void NuPlayer::performScanSources() {
1649    ALOGV("performScanSources");
1650
1651    if (!mStarted) {
1652        return;
1653    }
1654
1655    if (mAudioDecoder == NULL || mVideoDecoder == NULL) {
1656        postScanSources();
1657    }
1658}
1659
1660void NuPlayer::performSetSurface(const sp<NativeWindowWrapper> &wrapper) {
1661    ALOGV("performSetSurface");
1662
1663    mNativeWindow = wrapper;
1664
1665    // XXX - ignore error from setVideoScalingMode for now
1666    setVideoScalingMode(mVideoScalingMode);
1667
1668    if (mDriver != NULL) {
1669        sp<NuPlayerDriver> driver = mDriver.promote();
1670        if (driver != NULL) {
1671            driver->notifySetSurfaceComplete();
1672        }
1673    }
1674}
1675
1676void NuPlayer::onSourceNotify(const sp<AMessage> &msg) {
1677    int32_t what;
1678    CHECK(msg->findInt32("what", &what));
1679
1680    switch (what) {
1681        case Source::kWhatPrepared:
1682        {
1683            if (mSource == NULL) {
1684                // This is a stale notification from a source that was
1685                // asynchronously preparing when the client called reset().
1686                // We handled the reset, the source is gone.
1687                break;
1688            }
1689
1690            int32_t err;
1691            CHECK(msg->findInt32("err", &err));
1692
1693            sp<NuPlayerDriver> driver = mDriver.promote();
1694            if (driver != NULL) {
1695                // notify duration first, so that it's definitely set when
1696                // the app received the "prepare complete" callback.
1697                int64_t durationUs;
1698                if (mSource->getDuration(&durationUs) == OK) {
1699                    driver->notifyDuration(durationUs);
1700                }
1701                driver->notifyPrepareCompleted(err);
1702            }
1703
1704            break;
1705        }
1706
1707        case Source::kWhatFlagsChanged:
1708        {
1709            uint32_t flags;
1710            CHECK(msg->findInt32("flags", (int32_t *)&flags));
1711
1712            sp<NuPlayerDriver> driver = mDriver.promote();
1713            if (driver != NULL) {
1714                driver->notifyFlagsChanged(flags);
1715            }
1716
1717            if ((mSourceFlags & Source::FLAG_DYNAMIC_DURATION)
1718                    && (!(flags & Source::FLAG_DYNAMIC_DURATION))) {
1719                cancelPollDuration();
1720            } else if (!(mSourceFlags & Source::FLAG_DYNAMIC_DURATION)
1721                    && (flags & Source::FLAG_DYNAMIC_DURATION)
1722                    && (mAudioDecoder != NULL || mVideoDecoder != NULL)) {
1723                schedulePollDuration();
1724            }
1725
1726            mSourceFlags = flags;
1727            break;
1728        }
1729
1730        case Source::kWhatVideoSizeChanged:
1731        {
1732            int32_t width, height;
1733            CHECK(msg->findInt32("width", &width));
1734            CHECK(msg->findInt32("height", &height));
1735
1736            notifyListener(MEDIA_SET_VIDEO_SIZE, width, height);
1737            break;
1738        }
1739
1740        case Source::kWhatBufferingStart:
1741        {
1742            notifyListener(MEDIA_INFO, MEDIA_INFO_BUFFERING_START, 0);
1743            break;
1744        }
1745
1746        case Source::kWhatBufferingEnd:
1747        {
1748            notifyListener(MEDIA_INFO, MEDIA_INFO_BUFFERING_END, 0);
1749            break;
1750        }
1751
1752        case Source::kWhatSubtitleData:
1753        {
1754            sp<ABuffer> buffer;
1755            CHECK(msg->findBuffer("buffer", &buffer));
1756
1757            sendSubtitleData(buffer, 0 /* baseIndex */);
1758            break;
1759        }
1760
1761        case Source::kWhatTimedTextData:
1762        {
1763            int32_t generation;
1764            if (msg->findInt32("generation", &generation)
1765                    && generation != mTimedTextGeneration) {
1766                break;
1767            }
1768
1769            sp<ABuffer> buffer;
1770            CHECK(msg->findBuffer("buffer", &buffer));
1771
1772            sp<NuPlayerDriver> driver = mDriver.promote();
1773            if (driver == NULL) {
1774                break;
1775            }
1776
1777            int posMs;
1778            int64_t timeUs, posUs;
1779            driver->getCurrentPosition(&posMs);
1780            posUs = posMs * 1000;
1781            CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
1782
1783            if (posUs < timeUs) {
1784                if (!msg->findInt32("generation", &generation)) {
1785                    msg->setInt32("generation", mTimedTextGeneration);
1786                }
1787                msg->post(timeUs - posUs);
1788            } else {
1789                sendTimedTextData(buffer);
1790            }
1791            break;
1792        }
1793
1794        case Source::kWhatQueueDecoderShutdown:
1795        {
1796            int32_t audio, video;
1797            CHECK(msg->findInt32("audio", &audio));
1798            CHECK(msg->findInt32("video", &video));
1799
1800            sp<AMessage> reply;
1801            CHECK(msg->findMessage("reply", &reply));
1802
1803            queueDecoderShutdown(audio, video, reply);
1804            break;
1805        }
1806
1807        default:
1808            TRESPASS();
1809    }
1810}
1811
1812void NuPlayer::onClosedCaptionNotify(const sp<AMessage> &msg) {
1813    int32_t what;
1814    CHECK(msg->findInt32("what", &what));
1815
1816    switch (what) {
1817        case NuPlayer::CCDecoder::kWhatClosedCaptionData:
1818        {
1819            sp<ABuffer> buffer;
1820            CHECK(msg->findBuffer("buffer", &buffer));
1821
1822            size_t inbandTracks = 0;
1823            if (mSource != NULL) {
1824                inbandTracks = mSource->getTrackCount();
1825            }
1826
1827            sendSubtitleData(buffer, inbandTracks);
1828            break;
1829        }
1830
1831        case NuPlayer::CCDecoder::kWhatTrackAdded:
1832        {
1833            notifyListener(MEDIA_INFO, MEDIA_INFO_METADATA_UPDATE, 0);
1834
1835            break;
1836        }
1837
1838        default:
1839            TRESPASS();
1840    }
1841
1842
1843}
1844
1845void NuPlayer::sendSubtitleData(const sp<ABuffer> &buffer, int32_t baseIndex) {
1846    int32_t trackIndex;
1847    int64_t timeUs, durationUs;
1848    CHECK(buffer->meta()->findInt32("trackIndex", &trackIndex));
1849    CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
1850    CHECK(buffer->meta()->findInt64("durationUs", &durationUs));
1851
1852    Parcel in;
1853    in.writeInt32(trackIndex + baseIndex);
1854    in.writeInt64(timeUs);
1855    in.writeInt64(durationUs);
1856    in.writeInt32(buffer->size());
1857    in.writeInt32(buffer->size());
1858    in.write(buffer->data(), buffer->size());
1859
1860    notifyListener(MEDIA_SUBTITLE_DATA, 0, 0, &in);
1861}
1862
1863void NuPlayer::sendTimedTextData(const sp<ABuffer> &buffer) {
1864    const void *data;
1865    size_t size = 0;
1866    int64_t timeUs;
1867    int32_t flag = TextDescriptions::LOCAL_DESCRIPTIONS;
1868
1869    AString mime;
1870    CHECK(buffer->meta()->findString("mime", &mime));
1871    CHECK(strcasecmp(mime.c_str(), MEDIA_MIMETYPE_TEXT_3GPP) == 0);
1872
1873    data = buffer->data();
1874    size = buffer->size();
1875
1876    Parcel parcel;
1877    if (size > 0) {
1878        CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
1879        flag |= TextDescriptions::IN_BAND_TEXT_3GPP;
1880        TextDescriptions::getParcelOfDescriptions(
1881                (const uint8_t *)data, size, flag, timeUs / 1000, &parcel);
1882    }
1883
1884    if ((parcel.dataSize() > 0)) {
1885        notifyListener(MEDIA_TIMED_TEXT, 0, 0, &parcel);
1886    } else {  // send an empty timed text
1887        notifyListener(MEDIA_TIMED_TEXT, 0, 0);
1888    }
1889}
1890////////////////////////////////////////////////////////////////////////////////
1891
1892void NuPlayer::Source::notifyFlagsChanged(uint32_t flags) {
1893    sp<AMessage> notify = dupNotify();
1894    notify->setInt32("what", kWhatFlagsChanged);
1895    notify->setInt32("flags", flags);
1896    notify->post();
1897}
1898
1899void NuPlayer::Source::notifyVideoSizeChanged(int32_t width, int32_t height) {
1900    sp<AMessage> notify = dupNotify();
1901    notify->setInt32("what", kWhatVideoSizeChanged);
1902    notify->setInt32("width", width);
1903    notify->setInt32("height", height);
1904    notify->post();
1905}
1906
1907void NuPlayer::Source::notifyPrepared(status_t err) {
1908    sp<AMessage> notify = dupNotify();
1909    notify->setInt32("what", kWhatPrepared);
1910    notify->setInt32("err", err);
1911    notify->post();
1912}
1913
1914void NuPlayer::Source::onMessageReceived(const sp<AMessage> & /* msg */) {
1915    TRESPASS();
1916}
1917
1918void NuPlayer::queueDecoderShutdown(
1919        bool audio, bool video, const sp<AMessage> &reply) {
1920    ALOGI("queueDecoderShutdown audio=%d, video=%d", audio, video);
1921
1922    mDeferredActions.push_back(
1923            new ShutdownDecoderAction(audio, video));
1924
1925    mDeferredActions.push_back(
1926            new SimpleAction(&NuPlayer::performScanSources));
1927
1928    mDeferredActions.push_back(new PostMessageAction(reply));
1929
1930    processDeferredActions();
1931}
1932
1933}  // namespace android
1934