NuPlayer.cpp revision ced1c2f8f6c422063092f5cc5c675ccdebb2dc10 
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->setDataSource(httpService, url, headers);
236
237        if (err == OK) {
238            source = genericSource;
239        } else {
240            ALOGE("Failed to set data 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->setDataSource(fd, offset, length);
256
257    if (err != OK) {
258        ALOGE("Failed to set data 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                    sp<AMessage> inputFormat =
856                            mSource->getFormat(false /* audio */);
857
858                    updateVideoSize(inputFormat, format);
859                }
860            } else if (what == Decoder::kWhatShutdownCompleted) {
861                ALOGV("%s shutdown completed", audio ? "audio" : "video");
862                if (audio) {
863                    mAudioDecoder.clear();
864
865                    CHECK_EQ((int)mFlushingAudio, (int)SHUTTING_DOWN_DECODER);
866                    mFlushingAudio = SHUT_DOWN;
867                } else {
868                    mVideoDecoder.clear();
869
870                    CHECK_EQ((int)mFlushingVideo, (int)SHUTTING_DOWN_DECODER);
871                    mFlushingVideo = SHUT_DOWN;
872                }
873
874                finishFlushIfPossible();
875            } else if (what == Decoder::kWhatError) {
876                ALOGE("Received error from %s decoder, aborting playback.",
877                     audio ? "audio" : "video");
878
879                mRenderer->queueEOS(audio, UNKNOWN_ERROR);
880            } else if (what == Decoder::kWhatDrainThisBuffer) {
881                renderBuffer(audio, msg);
882            } else {
883                ALOGV("Unhandled decoder notification %d '%c%c%c%c'.",
884                      what,
885                      what >> 24,
886                      (what >> 16) & 0xff,
887                      (what >> 8) & 0xff,
888                      what & 0xff);
889            }
890
891            break;
892        }
893
894        case kWhatRendererNotify:
895        {
896            int32_t what;
897            CHECK(msg->findInt32("what", &what));
898
899            if (what == Renderer::kWhatEOS) {
900                int32_t audio;
901                CHECK(msg->findInt32("audio", &audio));
902
903                int32_t finalResult;
904                CHECK(msg->findInt32("finalResult", &finalResult));
905
906                if (audio) {
907                    mAudioEOS = true;
908                } else {
909                    mVideoEOS = true;
910                }
911
912                if (finalResult == ERROR_END_OF_STREAM) {
913                    ALOGV("reached %s EOS", audio ? "audio" : "video");
914                } else {
915                    ALOGE("%s track encountered an error (%d)",
916                         audio ? "audio" : "video", finalResult);
917
918                    notifyListener(
919                            MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, finalResult);
920                }
921
922                if ((mAudioEOS || mAudioDecoder == NULL)
923                        && (mVideoEOS || mVideoDecoder == NULL)) {
924                    notifyListener(MEDIA_PLAYBACK_COMPLETE, 0, 0);
925                }
926            } else if (what == Renderer::kWhatPosition) {
927                int64_t positionUs;
928                CHECK(msg->findInt64("positionUs", &positionUs));
929
930                CHECK(msg->findInt64("videoLateByUs", &mVideoLateByUs));
931
932                if (mDriver != NULL) {
933                    sp<NuPlayerDriver> driver = mDriver.promote();
934                    if (driver != NULL) {
935                        driver->notifyPosition(positionUs);
936
937                        driver->notifyFrameStats(
938                                mNumFramesTotal, mNumFramesDropped);
939                    }
940                }
941            } else if (what == Renderer::kWhatFlushComplete) {
942                int32_t audio;
943                CHECK(msg->findInt32("audio", &audio));
944
945                ALOGV("renderer %s flush completed.", audio ? "audio" : "video");
946            } else if (what == Renderer::kWhatVideoRenderingStart) {
947                notifyListener(MEDIA_INFO, MEDIA_INFO_RENDERING_START, 0);
948            } else if (what == Renderer::kWhatMediaRenderingStart) {
949                ALOGV("media rendering started");
950                notifyListener(MEDIA_STARTED, 0, 0);
951            } else if (what == Renderer::kWhatAudioOffloadTearDown) {
952                ALOGV("Tear down audio offload, fall back to s/w path");
953                int64_t positionUs;
954                CHECK(msg->findInt64("positionUs", &positionUs));
955                mAudioSink->close();
956                mAudioDecoder.clear();
957                mRenderer->flush(true /* audio */);
958                if (mVideoDecoder != NULL) {
959                    mRenderer->flush(false /* audio */);
960                }
961                mRenderer->signalDisableOffloadAudio();
962                mOffloadAudio = false;
963
964                performSeek(positionUs);
965                instantiateDecoder(true /* audio */, &mAudioDecoder);
966            }
967            break;
968        }
969
970        case kWhatMoreDataQueued:
971        {
972            break;
973        }
974
975        case kWhatReset:
976        {
977            ALOGV("kWhatReset");
978
979            mDeferredActions.push_back(
980                    new ShutdownDecoderAction(
981                        true /* audio */, true /* video */));
982
983            mDeferredActions.push_back(
984                    new SimpleAction(&NuPlayer::performReset));
985
986            processDeferredActions();
987            break;
988        }
989
990        case kWhatSeek:
991        {
992            int64_t seekTimeUs;
993            CHECK(msg->findInt64("seekTimeUs", &seekTimeUs));
994
995            ALOGV("kWhatSeek seekTimeUs=%lld us", seekTimeUs);
996
997            mDeferredActions.push_back(
998                    new SimpleAction(&NuPlayer::performDecoderFlush));
999
1000            mDeferredActions.push_back(new SeekAction(seekTimeUs));
1001
1002            processDeferredActions();
1003            break;
1004        }
1005
1006        case kWhatPause:
1007        {
1008            CHECK(mRenderer != NULL);
1009            mSource->pause();
1010            mRenderer->pause();
1011            break;
1012        }
1013
1014        case kWhatResume:
1015        {
1016            CHECK(mRenderer != NULL);
1017            mSource->resume();
1018            mRenderer->resume();
1019            break;
1020        }
1021
1022        case kWhatSourceNotify:
1023        {
1024            onSourceNotify(msg);
1025            break;
1026        }
1027
1028        case kWhatClosedCaptionNotify:
1029        {
1030            onClosedCaptionNotify(msg);
1031            break;
1032        }
1033
1034        default:
1035            TRESPASS();
1036            break;
1037    }
1038}
1039
1040void NuPlayer::finishFlushIfPossible() {
1041    if (mFlushingAudio != FLUSHED && mFlushingAudio != SHUT_DOWN) {
1042        return;
1043    }
1044
1045    if (mFlushingVideo != FLUSHED && mFlushingVideo != SHUT_DOWN) {
1046        return;
1047    }
1048
1049    ALOGV("both audio and video are flushed now.");
1050
1051    if (mTimeDiscontinuityPending) {
1052        mRenderer->signalTimeDiscontinuity();
1053        mTimeDiscontinuityPending = false;
1054    }
1055
1056    if (mAudioDecoder != NULL) {
1057        mAudioDecoder->signalResume();
1058    }
1059
1060    if (mVideoDecoder != NULL) {
1061        mVideoDecoder->signalResume();
1062    }
1063
1064    mFlushingAudio = NONE;
1065    mFlushingVideo = NONE;
1066
1067    processDeferredActions();
1068}
1069
1070void NuPlayer::postScanSources() {
1071    if (mScanSourcesPending) {
1072        return;
1073    }
1074
1075    sp<AMessage> msg = new AMessage(kWhatScanSources, id());
1076    msg->setInt32("generation", mScanSourcesGeneration);
1077    msg->post();
1078
1079    mScanSourcesPending = true;
1080}
1081
1082status_t NuPlayer::instantiateDecoder(bool audio, sp<Decoder> *decoder) {
1083    if (*decoder != NULL) {
1084        return OK;
1085    }
1086
1087    sp<AMessage> format = mSource->getFormat(audio);
1088
1089    if (format == NULL) {
1090        return -EWOULDBLOCK;
1091    }
1092
1093    if (!audio) {
1094        AString mime;
1095        CHECK(format->findString("mime", &mime));
1096        mVideoIsAVC = !strcasecmp(MEDIA_MIMETYPE_VIDEO_AVC, mime.c_str());
1097
1098        sp<AMessage> ccNotify = new AMessage(kWhatClosedCaptionNotify, id());
1099        mCCDecoder = new CCDecoder(ccNotify);
1100
1101        if (mSourceFlags & Source::FLAG_SECURE) {
1102            format->setInt32("secure", true);
1103        }
1104    }
1105
1106    sp<AMessage> notify =
1107        new AMessage(audio ? kWhatAudioNotify : kWhatVideoNotify,
1108                     id());
1109
1110    if (audio) {
1111        if (mOffloadAudio) {
1112            *decoder = new DecoderPassThrough(notify);
1113        } else {
1114            *decoder = new Decoder(notify);
1115        }
1116    } else {
1117        *decoder = new Decoder(notify, mNativeWindow);
1118    }
1119    (*decoder)->init();
1120    (*decoder)->configure(format);
1121
1122    // allocate buffers to decrypt widevine source buffers
1123    if (!audio && (mSourceFlags & Source::FLAG_SECURE)) {
1124        Vector<sp<ABuffer> > inputBufs;
1125        CHECK_EQ((*decoder)->getInputBuffers(&inputBufs), (status_t)OK);
1126
1127        Vector<MediaBuffer *> mediaBufs;
1128        for (size_t i = 0; i < inputBufs.size(); i++) {
1129            const sp<ABuffer> &buffer = inputBufs[i];
1130            MediaBuffer *mbuf = new MediaBuffer(buffer->data(), buffer->size());
1131            mediaBufs.push(mbuf);
1132        }
1133
1134        status_t err = mSource->setBuffers(audio, mediaBufs);
1135        if (err != OK) {
1136            for (size_t i = 0; i < mediaBufs.size(); ++i) {
1137                mediaBufs[i]->release();
1138            }
1139            mediaBufs.clear();
1140            ALOGE("Secure source didn't support secure mediaBufs.");
1141            return err;
1142        }
1143    }
1144    return OK;
1145}
1146
1147status_t NuPlayer::feedDecoderInputData(bool audio, const sp<AMessage> &msg) {
1148    sp<AMessage> reply;
1149    CHECK(msg->findMessage("reply", &reply));
1150
1151    if ((audio && IsFlushingState(mFlushingAudio))
1152            || (!audio && IsFlushingState(mFlushingVideo))) {
1153        reply->setInt32("err", INFO_DISCONTINUITY);
1154        reply->post();
1155        return OK;
1156    }
1157
1158    sp<ABuffer> accessUnit;
1159
1160    bool dropAccessUnit;
1161    do {
1162        status_t err = mSource->dequeueAccessUnit(audio, &accessUnit);
1163
1164        if (err == -EWOULDBLOCK) {
1165            return err;
1166        } else if (err != OK) {
1167            if (err == INFO_DISCONTINUITY) {
1168                int32_t type;
1169                CHECK(accessUnit->meta()->findInt32("discontinuity", &type));
1170
1171                bool formatChange =
1172                    (audio &&
1173                     (type & ATSParser::DISCONTINUITY_AUDIO_FORMAT))
1174                    || (!audio &&
1175                            (type & ATSParser::DISCONTINUITY_VIDEO_FORMAT));
1176
1177                bool timeChange = (type & ATSParser::DISCONTINUITY_TIME) != 0;
1178
1179                ALOGI("%s discontinuity (formatChange=%d, time=%d)",
1180                     audio ? "audio" : "video", formatChange, timeChange);
1181
1182                if (audio) {
1183                    mSkipRenderingAudioUntilMediaTimeUs = -1;
1184                } else {
1185                    mSkipRenderingVideoUntilMediaTimeUs = -1;
1186                }
1187
1188                if (timeChange) {
1189                    sp<AMessage> extra;
1190                    if (accessUnit->meta()->findMessage("extra", &extra)
1191                            && extra != NULL) {
1192                        int64_t resumeAtMediaTimeUs;
1193                        if (extra->findInt64(
1194                                    "resume-at-mediatimeUs", &resumeAtMediaTimeUs)) {
1195                            ALOGI("suppressing rendering of %s until %lld us",
1196                                    audio ? "audio" : "video", resumeAtMediaTimeUs);
1197
1198                            if (audio) {
1199                                mSkipRenderingAudioUntilMediaTimeUs =
1200                                    resumeAtMediaTimeUs;
1201                            } else {
1202                                mSkipRenderingVideoUntilMediaTimeUs =
1203                                    resumeAtMediaTimeUs;
1204                            }
1205                        }
1206                    }
1207                }
1208
1209                mTimeDiscontinuityPending =
1210                    mTimeDiscontinuityPending || timeChange;
1211
1212                if (mFlushingAudio == NONE && mFlushingVideo == NONE) {
1213                    // And we'll resume scanning sources once we're done
1214                    // flushing.
1215                    mDeferredActions.push_front(
1216                            new SimpleAction(
1217                                &NuPlayer::performScanSources));
1218                }
1219
1220                if (formatChange || timeChange) {
1221
1222                    sp<AMessage> newFormat = mSource->getFormat(audio);
1223                    sp<Decoder> &decoder = audio ? mAudioDecoder : mVideoDecoder;
1224                    if (formatChange && !decoder->supportsSeamlessFormatChange(newFormat)) {
1225                        flushDecoder(audio, /* needShutdown = */ true);
1226                    } else {
1227                        flushDecoder(audio, /* needShutdown = */ false);
1228                        err = OK;
1229                    }
1230                } else {
1231                    // This stream is unaffected by the discontinuity
1232
1233                    if (audio) {
1234                        mFlushingAudio = FLUSHED;
1235                    } else {
1236                        mFlushingVideo = FLUSHED;
1237                    }
1238
1239                    finishFlushIfPossible();
1240
1241                    return -EWOULDBLOCK;
1242                }
1243            }
1244
1245            reply->setInt32("err", err);
1246            reply->post();
1247            return OK;
1248        }
1249
1250        if (!audio) {
1251            ++mNumFramesTotal;
1252        }
1253
1254        dropAccessUnit = false;
1255        if (!audio
1256                && !(mSourceFlags & Source::FLAG_SECURE)
1257                && mVideoLateByUs > 100000ll
1258                && mVideoIsAVC
1259                && !IsAVCReferenceFrame(accessUnit)) {
1260            dropAccessUnit = true;
1261            ++mNumFramesDropped;
1262        }
1263    } while (dropAccessUnit);
1264
1265    // ALOGV("returned a valid buffer of %s data", audio ? "audio" : "video");
1266
1267#if 0
1268    int64_t mediaTimeUs;
1269    CHECK(accessUnit->meta()->findInt64("timeUs", &mediaTimeUs));
1270    ALOGV("feeding %s input buffer at media time %.2f secs",
1271         audio ? "audio" : "video",
1272         mediaTimeUs / 1E6);
1273#endif
1274
1275    if (!audio) {
1276        mCCDecoder->decode(accessUnit);
1277    }
1278
1279    reply->setBuffer("buffer", accessUnit);
1280    reply->post();
1281
1282    return OK;
1283}
1284
1285void NuPlayer::renderBuffer(bool audio, const sp<AMessage> &msg) {
1286    // ALOGV("renderBuffer %s", audio ? "audio" : "video");
1287
1288    sp<AMessage> reply;
1289    CHECK(msg->findMessage("reply", &reply));
1290
1291    if (IsFlushingState(audio ? mFlushingAudio : mFlushingVideo)) {
1292        // We're currently attempting to flush the decoder, in order
1293        // to complete this, the decoder wants all its buffers back,
1294        // so we don't want any output buffers it sent us (from before
1295        // we initiated the flush) to be stuck in the renderer's queue.
1296
1297        ALOGV("we're still flushing the %s decoder, sending its output buffer"
1298             " right back.", audio ? "audio" : "video");
1299
1300        reply->post();
1301        return;
1302    }
1303
1304    sp<ABuffer> buffer;
1305    CHECK(msg->findBuffer("buffer", &buffer));
1306
1307    int64_t mediaTimeUs;
1308    CHECK(buffer->meta()->findInt64("timeUs", &mediaTimeUs));
1309
1310    int64_t &skipUntilMediaTimeUs =
1311        audio
1312            ? mSkipRenderingAudioUntilMediaTimeUs
1313            : mSkipRenderingVideoUntilMediaTimeUs;
1314
1315    if (skipUntilMediaTimeUs >= 0) {
1316
1317        if (mediaTimeUs < skipUntilMediaTimeUs) {
1318            ALOGV("dropping %s buffer at time %lld as requested.",
1319                 audio ? "audio" : "video",
1320                 mediaTimeUs);
1321
1322            reply->post();
1323            return;
1324        }
1325
1326        skipUntilMediaTimeUs = -1;
1327    }
1328
1329    if (!audio && mCCDecoder->isSelected()) {
1330        mCCDecoder->display(mediaTimeUs);
1331    }
1332
1333    mRenderer->queueBuffer(audio, buffer, reply);
1334}
1335
1336void NuPlayer::updateVideoSize(
1337        const sp<AMessage> &inputFormat,
1338        const sp<AMessage> &outputFormat) {
1339    if (inputFormat == NULL) {
1340        ALOGW("Unknown video size, reporting 0x0!");
1341        notifyListener(MEDIA_SET_VIDEO_SIZE, 0, 0);
1342        return;
1343    }
1344
1345    int32_t displayWidth, displayHeight;
1346    int32_t cropLeft, cropTop, cropRight, cropBottom;
1347
1348    if (outputFormat != NULL) {
1349        int32_t width, height;
1350        CHECK(outputFormat->findInt32("width", &width));
1351        CHECK(outputFormat->findInt32("height", &height));
1352
1353        int32_t cropLeft, cropTop, cropRight, cropBottom;
1354        CHECK(outputFormat->findRect(
1355                    "crop",
1356                    &cropLeft, &cropTop, &cropRight, &cropBottom));
1357
1358        displayWidth = cropRight - cropLeft + 1;
1359        displayHeight = cropBottom - cropTop + 1;
1360
1361        ALOGV("Video output format changed to %d x %d "
1362             "(crop: %d x %d @ (%d, %d))",
1363             width, height,
1364             displayWidth,
1365             displayHeight,
1366             cropLeft, cropTop);
1367    } else {
1368        CHECK(inputFormat->findInt32("width", &displayWidth));
1369        CHECK(inputFormat->findInt32("height", &displayHeight));
1370
1371        ALOGV("Video input format %d x %d", displayWidth, displayHeight);
1372    }
1373
1374    // Take into account sample aspect ratio if necessary:
1375    int32_t sarWidth, sarHeight;
1376    if (inputFormat->findInt32("sar-width", &sarWidth)
1377            && inputFormat->findInt32("sar-height", &sarHeight)) {
1378        ALOGV("Sample aspect ratio %d : %d", sarWidth, sarHeight);
1379
1380        displayWidth = (displayWidth * sarWidth) / sarHeight;
1381
1382        ALOGV("display dimensions %d x %d", displayWidth, displayHeight);
1383    }
1384
1385    int32_t rotationDegrees;
1386    if (!inputFormat->findInt32("rotation-degrees", &rotationDegrees)) {
1387        rotationDegrees = 0;
1388    }
1389
1390    if (rotationDegrees == 90 || rotationDegrees == 270) {
1391        int32_t tmp = displayWidth;
1392        displayWidth = displayHeight;
1393        displayHeight = tmp;
1394    }
1395
1396    notifyListener(
1397            MEDIA_SET_VIDEO_SIZE,
1398            displayWidth,
1399            displayHeight);
1400}
1401
1402void NuPlayer::notifyListener(int msg, int ext1, int ext2, const Parcel *in) {
1403    if (mDriver == NULL) {
1404        return;
1405    }
1406
1407    sp<NuPlayerDriver> driver = mDriver.promote();
1408
1409    if (driver == NULL) {
1410        return;
1411    }
1412
1413    driver->notifyListener(msg, ext1, ext2, in);
1414}
1415
1416void NuPlayer::flushDecoder(bool audio, bool needShutdown) {
1417    ALOGV("[%s] flushDecoder needShutdown=%d",
1418          audio ? "audio" : "video", needShutdown);
1419
1420    if ((audio && mAudioDecoder == NULL) || (!audio && mVideoDecoder == NULL)) {
1421        ALOGI("flushDecoder %s without decoder present",
1422             audio ? "audio" : "video");
1423    }
1424
1425    // Make sure we don't continue to scan sources until we finish flushing.
1426    ++mScanSourcesGeneration;
1427    mScanSourcesPending = false;
1428
1429    (audio ? mAudioDecoder : mVideoDecoder)->signalFlush();
1430    mRenderer->flush(audio);
1431
1432    FlushStatus newStatus =
1433        needShutdown ? FLUSHING_DECODER_SHUTDOWN : FLUSHING_DECODER;
1434
1435    if (audio) {
1436        CHECK(mFlushingAudio == NONE
1437                || mFlushingAudio == AWAITING_DISCONTINUITY);
1438
1439        mFlushingAudio = newStatus;
1440
1441        if (mFlushingVideo == NONE) {
1442            mFlushingVideo = (mVideoDecoder != NULL)
1443                ? AWAITING_DISCONTINUITY
1444                : FLUSHED;
1445        }
1446    } else {
1447        CHECK(mFlushingVideo == NONE
1448                || mFlushingVideo == AWAITING_DISCONTINUITY);
1449
1450        mFlushingVideo = newStatus;
1451
1452        if (mFlushingAudio == NONE) {
1453            mFlushingAudio = (mAudioDecoder != NULL)
1454                ? AWAITING_DISCONTINUITY
1455                : FLUSHED;
1456        }
1457    }
1458}
1459
1460void NuPlayer::queueDecoderShutdown(
1461        bool audio, bool video, const sp<AMessage> &reply) {
1462    ALOGI("queueDecoderShutdown audio=%d, video=%d", audio, video);
1463
1464    mDeferredActions.push_back(
1465            new ShutdownDecoderAction(audio, video));
1466
1467    mDeferredActions.push_back(
1468            new SimpleAction(&NuPlayer::performScanSources));
1469
1470    mDeferredActions.push_back(new PostMessageAction(reply));
1471
1472    processDeferredActions();
1473}
1474
1475status_t NuPlayer::setVideoScalingMode(int32_t mode) {
1476    mVideoScalingMode = mode;
1477    if (mNativeWindow != NULL) {
1478        status_t ret = native_window_set_scaling_mode(
1479                mNativeWindow->getNativeWindow().get(), mVideoScalingMode);
1480        if (ret != OK) {
1481            ALOGE("Failed to set scaling mode (%d): %s",
1482                -ret, strerror(-ret));
1483            return ret;
1484        }
1485    }
1486    return OK;
1487}
1488
1489status_t NuPlayer::getTrackInfo(Parcel* reply) const {
1490    sp<AMessage> msg = new AMessage(kWhatGetTrackInfo, id());
1491    msg->setPointer("reply", reply);
1492
1493    sp<AMessage> response;
1494    status_t err = msg->postAndAwaitResponse(&response);
1495    return err;
1496}
1497
1498status_t NuPlayer::selectTrack(size_t trackIndex, bool select) {
1499    sp<AMessage> msg = new AMessage(kWhatSelectTrack, id());
1500    msg->setSize("trackIndex", trackIndex);
1501    msg->setInt32("select", select);
1502
1503    sp<AMessage> response;
1504    status_t err = msg->postAndAwaitResponse(&response);
1505
1506    if (err != OK) {
1507        return err;
1508    }
1509
1510    if (!response->findInt32("err", &err)) {
1511        err = OK;
1512    }
1513
1514    return err;
1515}
1516
1517void NuPlayer::schedulePollDuration() {
1518    sp<AMessage> msg = new AMessage(kWhatPollDuration, id());
1519    msg->setInt32("generation", mPollDurationGeneration);
1520    msg->post();
1521}
1522
1523void NuPlayer::cancelPollDuration() {
1524    ++mPollDurationGeneration;
1525}
1526
1527void NuPlayer::processDeferredActions() {
1528    while (!mDeferredActions.empty()) {
1529        // We won't execute any deferred actions until we're no longer in
1530        // an intermediate state, i.e. one more more decoders are currently
1531        // flushing or shutting down.
1532
1533        if (mRenderer != NULL) {
1534            // There's an edge case where the renderer owns all output
1535            // buffers and is paused, therefore the decoder will not read
1536            // more input data and will never encounter the matching
1537            // discontinuity. To avoid this, we resume the renderer.
1538
1539            if (mFlushingAudio == AWAITING_DISCONTINUITY
1540                    || mFlushingVideo == AWAITING_DISCONTINUITY) {
1541                mRenderer->resume();
1542            }
1543        }
1544
1545        if (mFlushingAudio != NONE || mFlushingVideo != NONE) {
1546            // We're currently flushing, postpone the reset until that's
1547            // completed.
1548
1549            ALOGV("postponing action mFlushingAudio=%d, mFlushingVideo=%d",
1550                  mFlushingAudio, mFlushingVideo);
1551
1552            break;
1553        }
1554
1555        sp<Action> action = *mDeferredActions.begin();
1556        mDeferredActions.erase(mDeferredActions.begin());
1557
1558        action->execute(this);
1559    }
1560}
1561
1562void NuPlayer::performSeek(int64_t seekTimeUs) {
1563    ALOGV("performSeek seekTimeUs=%lld us (%.2f secs)",
1564          seekTimeUs,
1565          seekTimeUs / 1E6);
1566
1567    mSource->seekTo(seekTimeUs);
1568    ++mTimedTextGeneration;
1569
1570    if (mDriver != NULL) {
1571        sp<NuPlayerDriver> driver = mDriver.promote();
1572        if (driver != NULL) {
1573            driver->notifyPosition(seekTimeUs);
1574            driver->notifySeekComplete();
1575        }
1576    }
1577
1578    // everything's flushed, continue playback.
1579}
1580
1581void NuPlayer::performDecoderFlush() {
1582    ALOGV("performDecoderFlush");
1583
1584    if (mAudioDecoder == NULL && mVideoDecoder == NULL) {
1585        return;
1586    }
1587
1588    mTimeDiscontinuityPending = true;
1589
1590    if (mAudioDecoder != NULL) {
1591        flushDecoder(true /* audio */, false /* needShutdown */);
1592    }
1593
1594    if (mVideoDecoder != NULL) {
1595        flushDecoder(false /* audio */, false /* needShutdown */);
1596    }
1597}
1598
1599void NuPlayer::performDecoderShutdown(bool audio, bool video) {
1600    ALOGV("performDecoderShutdown audio=%d, video=%d", audio, video);
1601
1602    if ((!audio || mAudioDecoder == NULL)
1603            && (!video || mVideoDecoder == NULL)) {
1604        return;
1605    }
1606
1607    mTimeDiscontinuityPending = true;
1608
1609    if (mFlushingAudio == NONE && (!audio || mAudioDecoder == NULL)) {
1610        mFlushingAudio = FLUSHED;
1611    }
1612
1613    if (mFlushingVideo == NONE && (!video || mVideoDecoder == NULL)) {
1614        mFlushingVideo = FLUSHED;
1615    }
1616
1617    if (audio && mAudioDecoder != NULL) {
1618        flushDecoder(true /* audio */, true /* needShutdown */);
1619    }
1620
1621    if (video && mVideoDecoder != NULL) {
1622        flushDecoder(false /* audio */, true /* needShutdown */);
1623    }
1624}
1625
1626void NuPlayer::performReset() {
1627    ALOGV("performReset");
1628
1629    CHECK(mAudioDecoder == NULL);
1630    CHECK(mVideoDecoder == NULL);
1631
1632    cancelPollDuration();
1633
1634    ++mScanSourcesGeneration;
1635    mScanSourcesPending = false;
1636
1637    if (mRendererLooper != NULL) {
1638        if (mRenderer != NULL) {
1639            mRendererLooper->unregisterHandler(mRenderer->id());
1640        }
1641        mRendererLooper->stop();
1642        mRendererLooper.clear();
1643    }
1644    mRenderer.clear();
1645
1646    if (mSource != NULL) {
1647        mSource->stop();
1648
1649        looper()->unregisterHandler(mSource->id());
1650
1651        mSource.clear();
1652    }
1653
1654    if (mDriver != NULL) {
1655        sp<NuPlayerDriver> driver = mDriver.promote();
1656        if (driver != NULL) {
1657            driver->notifyResetComplete();
1658        }
1659    }
1660
1661    mStarted = false;
1662}
1663
1664void NuPlayer::performScanSources() {
1665    ALOGV("performScanSources");
1666
1667    if (!mStarted) {
1668        return;
1669    }
1670
1671    if (mAudioDecoder == NULL || mVideoDecoder == NULL) {
1672        postScanSources();
1673    }
1674}
1675
1676void NuPlayer::performSetSurface(const sp<NativeWindowWrapper> &wrapper) {
1677    ALOGV("performSetSurface");
1678
1679    mNativeWindow = wrapper;
1680
1681    // XXX - ignore error from setVideoScalingMode for now
1682    setVideoScalingMode(mVideoScalingMode);
1683
1684    if (mDriver != NULL) {
1685        sp<NuPlayerDriver> driver = mDriver.promote();
1686        if (driver != NULL) {
1687            driver->notifySetSurfaceComplete();
1688        }
1689    }
1690}
1691
1692void NuPlayer::onSourceNotify(const sp<AMessage> &msg) {
1693    int32_t what;
1694    CHECK(msg->findInt32("what", &what));
1695
1696    switch (what) {
1697        case Source::kWhatPrepared:
1698        {
1699            if (mSource == NULL) {
1700                // This is a stale notification from a source that was
1701                // asynchronously preparing when the client called reset().
1702                // We handled the reset, the source is gone.
1703                break;
1704            }
1705
1706            int32_t err;
1707            CHECK(msg->findInt32("err", &err));
1708
1709            sp<NuPlayerDriver> driver = mDriver.promote();
1710            if (driver != NULL) {
1711                // notify duration first, so that it's definitely set when
1712                // the app received the "prepare complete" callback.
1713                int64_t durationUs;
1714                if (mSource->getDuration(&durationUs) == OK) {
1715                    driver->notifyDuration(durationUs);
1716                }
1717                driver->notifyPrepareCompleted(err);
1718            }
1719
1720            break;
1721        }
1722
1723        case Source::kWhatFlagsChanged:
1724        {
1725            uint32_t flags;
1726            CHECK(msg->findInt32("flags", (int32_t *)&flags));
1727
1728            sp<NuPlayerDriver> driver = mDriver.promote();
1729            if (driver != NULL) {
1730                driver->notifyFlagsChanged(flags);
1731            }
1732
1733            if ((mSourceFlags & Source::FLAG_DYNAMIC_DURATION)
1734                    && (!(flags & Source::FLAG_DYNAMIC_DURATION))) {
1735                cancelPollDuration();
1736            } else if (!(mSourceFlags & Source::FLAG_DYNAMIC_DURATION)
1737                    && (flags & Source::FLAG_DYNAMIC_DURATION)
1738                    && (mAudioDecoder != NULL || mVideoDecoder != NULL)) {
1739                schedulePollDuration();
1740            }
1741
1742            mSourceFlags = flags;
1743            break;
1744        }
1745
1746        case Source::kWhatVideoSizeChanged:
1747        {
1748            sp<AMessage> format;
1749            CHECK(msg->findMessage("format", &format));
1750
1751            updateVideoSize(format);
1752            break;
1753        }
1754
1755        case Source::kWhatBufferingStart:
1756        {
1757            notifyListener(MEDIA_INFO, MEDIA_INFO_BUFFERING_START, 0);
1758            break;
1759        }
1760
1761        case Source::kWhatBufferingEnd:
1762        {
1763            notifyListener(MEDIA_INFO, MEDIA_INFO_BUFFERING_END, 0);
1764            break;
1765        }
1766
1767        case Source::kWhatSubtitleData:
1768        {
1769            sp<ABuffer> buffer;
1770            CHECK(msg->findBuffer("buffer", &buffer));
1771
1772            sendSubtitleData(buffer, 0 /* baseIndex */);
1773            break;
1774        }
1775
1776        case Source::kWhatTimedTextData:
1777        {
1778            int32_t generation;
1779            if (msg->findInt32("generation", &generation)
1780                    && generation != mTimedTextGeneration) {
1781                break;
1782            }
1783
1784            sp<ABuffer> buffer;
1785            CHECK(msg->findBuffer("buffer", &buffer));
1786
1787            sp<NuPlayerDriver> driver = mDriver.promote();
1788            if (driver == NULL) {
1789                break;
1790            }
1791
1792            int posMs;
1793            int64_t timeUs, posUs;
1794            driver->getCurrentPosition(&posMs);
1795            posUs = posMs * 1000;
1796            CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
1797
1798            if (posUs < timeUs) {
1799                if (!msg->findInt32("generation", &generation)) {
1800                    msg->setInt32("generation", mTimedTextGeneration);
1801                }
1802                msg->post(timeUs - posUs);
1803            } else {
1804                sendTimedTextData(buffer);
1805            }
1806            break;
1807        }
1808
1809        case Source::kWhatQueueDecoderShutdown:
1810        {
1811            int32_t audio, video;
1812            CHECK(msg->findInt32("audio", &audio));
1813            CHECK(msg->findInt32("video", &video));
1814
1815            sp<AMessage> reply;
1816            CHECK(msg->findMessage("reply", &reply));
1817
1818            queueDecoderShutdown(audio, video, reply);
1819            break;
1820        }
1821
1822        default:
1823            TRESPASS();
1824    }
1825}
1826
1827void NuPlayer::onClosedCaptionNotify(const sp<AMessage> &msg) {
1828    int32_t what;
1829    CHECK(msg->findInt32("what", &what));
1830
1831    switch (what) {
1832        case NuPlayer::CCDecoder::kWhatClosedCaptionData:
1833        {
1834            sp<ABuffer> buffer;
1835            CHECK(msg->findBuffer("buffer", &buffer));
1836
1837            size_t inbandTracks = 0;
1838            if (mSource != NULL) {
1839                inbandTracks = mSource->getTrackCount();
1840            }
1841
1842            sendSubtitleData(buffer, inbandTracks);
1843            break;
1844        }
1845
1846        case NuPlayer::CCDecoder::kWhatTrackAdded:
1847        {
1848            notifyListener(MEDIA_INFO, MEDIA_INFO_METADATA_UPDATE, 0);
1849
1850            break;
1851        }
1852
1853        default:
1854            TRESPASS();
1855    }
1856
1857
1858}
1859
1860void NuPlayer::sendSubtitleData(const sp<ABuffer> &buffer, int32_t baseIndex) {
1861    int32_t trackIndex;
1862    int64_t timeUs, durationUs;
1863    CHECK(buffer->meta()->findInt32("trackIndex", &trackIndex));
1864    CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
1865    CHECK(buffer->meta()->findInt64("durationUs", &durationUs));
1866
1867    Parcel in;
1868    in.writeInt32(trackIndex + baseIndex);
1869    in.writeInt64(timeUs);
1870    in.writeInt64(durationUs);
1871    in.writeInt32(buffer->size());
1872    in.writeInt32(buffer->size());
1873    in.write(buffer->data(), buffer->size());
1874
1875    notifyListener(MEDIA_SUBTITLE_DATA, 0, 0, &in);
1876}
1877
1878void NuPlayer::sendTimedTextData(const sp<ABuffer> &buffer) {
1879    const void *data;
1880    size_t size = 0;
1881    int64_t timeUs;
1882    int32_t flag = TextDescriptions::LOCAL_DESCRIPTIONS;
1883
1884    AString mime;
1885    CHECK(buffer->meta()->findString("mime", &mime));
1886    CHECK(strcasecmp(mime.c_str(), MEDIA_MIMETYPE_TEXT_3GPP) == 0);
1887
1888    data = buffer->data();
1889    size = buffer->size();
1890
1891    Parcel parcel;
1892    if (size > 0) {
1893        CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
1894        flag |= TextDescriptions::IN_BAND_TEXT_3GPP;
1895        TextDescriptions::getParcelOfDescriptions(
1896                (const uint8_t *)data, size, flag, timeUs / 1000, &parcel);
1897    }
1898
1899    if ((parcel.dataSize() > 0)) {
1900        notifyListener(MEDIA_TIMED_TEXT, 0, 0, &parcel);
1901    } else {  // send an empty timed text
1902        notifyListener(MEDIA_TIMED_TEXT, 0, 0);
1903    }
1904}
1905////////////////////////////////////////////////////////////////////////////////
1906
1907sp<AMessage> NuPlayer::Source::getFormat(bool audio) {
1908    sp<MetaData> meta = getFormatMeta(audio);
1909
1910    if (meta == NULL) {
1911        return NULL;
1912    }
1913
1914    sp<AMessage> msg = new AMessage;
1915
1916    if(convertMetaDataToMessage(meta, &msg) == OK) {
1917        return msg;
1918    }
1919    return NULL;
1920}
1921
1922void NuPlayer::Source::notifyFlagsChanged(uint32_t flags) {
1923    sp<AMessage> notify = dupNotify();
1924    notify->setInt32("what", kWhatFlagsChanged);
1925    notify->setInt32("flags", flags);
1926    notify->post();
1927}
1928
1929void NuPlayer::Source::notifyVideoSizeChanged(const sp<AMessage> &format) {
1930    sp<AMessage> notify = dupNotify();
1931    notify->setInt32("what", kWhatVideoSizeChanged);
1932    notify->setMessage("format", format);
1933    notify->post();
1934}
1935
1936void NuPlayer::Source::notifyPrepared(status_t err) {
1937    sp<AMessage> notify = dupNotify();
1938    notify->setInt32("what", kWhatPrepared);
1939    notify->setInt32("err", err);
1940    notify->post();
1941}
1942
1943void NuPlayer::Source::onMessageReceived(const sp<AMessage> & /* msg */) {
1944    TRESPASS();
1945}
1946
1947}  // namespace android
1948