NuPlayer.cpp revision 7c4f0d757bfeedaab4b7ef4ccf5b0a72ec8f4306 
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 kWhatGetSelectedTrack:
431        {
432            status_t err = INVALID_OPERATION;
433            if (mSource != NULL) {
434                err = OK;
435
436                int32_t type32;
437                CHECK(msg->findInt32("type", (int32_t*)&type32));
438                media_track_type type = (media_track_type)type32;
439                ssize_t selectedTrack = mSource->getSelectedTrack(type);
440
441                Parcel* reply;
442                CHECK(msg->findPointer("reply", (void**)&reply));
443                reply->writeInt32(selectedTrack);
444            }
445
446            sp<AMessage> response = new AMessage;
447            response->setInt32("err", err);
448
449            uint32_t replyID;
450            CHECK(msg->senderAwaitsResponse(&replyID));
451            response->postReply(replyID);
452            break;
453        }
454
455        case kWhatSelectTrack:
456        {
457            uint32_t replyID;
458            CHECK(msg->senderAwaitsResponse(&replyID));
459
460            size_t trackIndex;
461            int32_t select;
462            CHECK(msg->findSize("trackIndex", &trackIndex));
463            CHECK(msg->findInt32("select", &select));
464
465            status_t err = INVALID_OPERATION;
466
467            size_t inbandTracks = 0;
468            if (mSource != NULL) {
469                inbandTracks = mSource->getTrackCount();
470            }
471            size_t ccTracks = 0;
472            if (mCCDecoder != NULL) {
473                ccTracks = mCCDecoder->getTrackCount();
474            }
475
476            if (trackIndex < inbandTracks) {
477                err = mSource->selectTrack(trackIndex, select);
478
479                if (!select && err == OK) {
480                    int32_t type;
481                    sp<AMessage> info = mSource->getTrackInfo(trackIndex);
482                    if (info != NULL
483                            && info->findInt32("type", &type)
484                            && type == MEDIA_TRACK_TYPE_TIMEDTEXT) {
485                        ++mTimedTextGeneration;
486                    }
487                }
488            } else {
489                trackIndex -= inbandTracks;
490
491                if (trackIndex < ccTracks) {
492                    err = mCCDecoder->selectTrack(trackIndex, select);
493                }
494            }
495
496            sp<AMessage> response = new AMessage;
497            response->setInt32("err", err);
498
499            response->postReply(replyID);
500            break;
501        }
502
503        case kWhatPollDuration:
504        {
505            int32_t generation;
506            CHECK(msg->findInt32("generation", &generation));
507
508            if (generation != mPollDurationGeneration) {
509                // stale
510                break;
511            }
512
513            int64_t durationUs;
514            if (mDriver != NULL && mSource->getDuration(&durationUs) == OK) {
515                sp<NuPlayerDriver> driver = mDriver.promote();
516                if (driver != NULL) {
517                    driver->notifyDuration(durationUs);
518                }
519            }
520
521            msg->post(1000000ll);  // poll again in a second.
522            break;
523        }
524
525        case kWhatSetVideoNativeWindow:
526        {
527            ALOGV("kWhatSetVideoNativeWindow");
528
529            mDeferredActions.push_back(
530                    new ShutdownDecoderAction(
531                        false /* audio */, true /* video */));
532
533            sp<RefBase> obj;
534            CHECK(msg->findObject("native-window", &obj));
535
536            mDeferredActions.push_back(
537                    new SetSurfaceAction(
538                        static_cast<NativeWindowWrapper *>(obj.get())));
539
540            if (obj != NULL) {
541                // If there is a new surface texture, instantiate decoders
542                // again if possible.
543                mDeferredActions.push_back(
544                        new SimpleAction(&NuPlayer::performScanSources));
545            }
546
547            processDeferredActions();
548            break;
549        }
550
551        case kWhatSetAudioSink:
552        {
553            ALOGV("kWhatSetAudioSink");
554
555            sp<RefBase> obj;
556            CHECK(msg->findObject("sink", &obj));
557
558            mAudioSink = static_cast<MediaPlayerBase::AudioSink *>(obj.get());
559            break;
560        }
561
562        case kWhatStart:
563        {
564            ALOGV("kWhatStart");
565
566            mVideoIsAVC = false;
567            mOffloadAudio = false;
568            mAudioEOS = false;
569            mVideoEOS = false;
570            mSkipRenderingAudioUntilMediaTimeUs = -1;
571            mSkipRenderingVideoUntilMediaTimeUs = -1;
572            mVideoLateByUs = 0;
573            mNumFramesTotal = 0;
574            mNumFramesDropped = 0;
575            mStarted = true;
576
577            /* instantiate decoders now for secure playback */
578            if (mSourceFlags & Source::FLAG_SECURE) {
579                if (mNativeWindow != NULL) {
580                    instantiateDecoder(false, &mVideoDecoder);
581                }
582
583                if (mAudioSink != NULL) {
584                    instantiateDecoder(true, &mAudioDecoder);
585                }
586            }
587
588            mSource->start();
589
590            uint32_t flags = 0;
591
592            if (mSource->isRealTime()) {
593                flags |= Renderer::FLAG_REAL_TIME;
594            }
595
596            sp<MetaData> audioMeta = mSource->getFormatMeta(true /* audio */);
597            audio_stream_type_t streamType = AUDIO_STREAM_MUSIC;
598            if (mAudioSink != NULL) {
599                streamType = mAudioSink->getAudioStreamType();
600            }
601
602            sp<AMessage> videoFormat = mSource->getFormat(false /* audio */);
603
604            mOffloadAudio =
605                canOffloadStream(audioMeta, (videoFormat != NULL),
606                                 true /* is_streaming */, streamType);
607            if (mOffloadAudio) {
608                flags |= Renderer::FLAG_OFFLOAD_AUDIO;
609            }
610
611            mRenderer = new Renderer(
612                    mAudioSink,
613                    new AMessage(kWhatRendererNotify, id()),
614                    flags);
615
616            mRendererLooper = new ALooper;
617            mRendererLooper->setName("NuPlayerRenderer");
618            mRendererLooper->start(false, false, ANDROID_PRIORITY_AUDIO);
619            mRendererLooper->registerHandler(mRenderer);
620
621            postScanSources();
622            break;
623        }
624
625        case kWhatScanSources:
626        {
627            int32_t generation;
628            CHECK(msg->findInt32("generation", &generation));
629            if (generation != mScanSourcesGeneration) {
630                // Drop obsolete msg.
631                break;
632            }
633
634            mScanSourcesPending = false;
635
636            ALOGV("scanning sources haveAudio=%d, haveVideo=%d",
637                 mAudioDecoder != NULL, mVideoDecoder != NULL);
638
639            bool mHadAnySourcesBefore =
640                (mAudioDecoder != NULL) || (mVideoDecoder != NULL);
641
642            if (mNativeWindow != NULL) {
643                instantiateDecoder(false, &mVideoDecoder);
644            }
645
646            if (mAudioSink != NULL) {
647                instantiateDecoder(true, &mAudioDecoder);
648            }
649
650            if (!mHadAnySourcesBefore
651                    && (mAudioDecoder != NULL || mVideoDecoder != NULL)) {
652                // This is the first time we've found anything playable.
653
654                if (mSourceFlags & Source::FLAG_DYNAMIC_DURATION) {
655                    schedulePollDuration();
656                }
657            }
658
659            status_t err;
660            if ((err = mSource->feedMoreTSData()) != OK) {
661                if (mAudioDecoder == NULL && mVideoDecoder == NULL) {
662                    // We're not currently decoding anything (no audio or
663                    // video tracks found) and we just ran out of input data.
664
665                    if (err == ERROR_END_OF_STREAM) {
666                        notifyListener(MEDIA_PLAYBACK_COMPLETE, 0, 0);
667                    } else {
668                        notifyListener(MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, err);
669                    }
670                }
671                break;
672            }
673
674            if ((mAudioDecoder == NULL && mAudioSink != NULL)
675                    || (mVideoDecoder == NULL && mNativeWindow != NULL)) {
676                msg->post(100000ll);
677                mScanSourcesPending = true;
678            }
679            break;
680        }
681
682        case kWhatVideoNotify:
683        case kWhatAudioNotify:
684        {
685            bool audio = msg->what() == kWhatAudioNotify;
686
687            int32_t what;
688            CHECK(msg->findInt32("what", &what));
689
690            if (what == Decoder::kWhatFillThisBuffer) {
691                status_t err = feedDecoderInputData(
692                        audio, msg);
693
694                if (err == -EWOULDBLOCK) {
695                    if (mSource->feedMoreTSData() == OK) {
696                        msg->post(10000ll);
697                    }
698                }
699            } else if (what == Decoder::kWhatEOS) {
700                int32_t err;
701                CHECK(msg->findInt32("err", &err));
702
703                if (err == ERROR_END_OF_STREAM) {
704                    ALOGV("got %s decoder EOS", audio ? "audio" : "video");
705                } else {
706                    ALOGV("got %s decoder EOS w/ error %d",
707                         audio ? "audio" : "video",
708                         err);
709                }
710
711                mRenderer->queueEOS(audio, err);
712            } else if (what == Decoder::kWhatFlushCompleted) {
713                bool needShutdown;
714
715                if (audio) {
716                    CHECK(IsFlushingState(mFlushingAudio, &needShutdown));
717                    mFlushingAudio = FLUSHED;
718                } else {
719                    CHECK(IsFlushingState(mFlushingVideo, &needShutdown));
720                    mFlushingVideo = FLUSHED;
721
722                    mVideoLateByUs = 0;
723                }
724
725                ALOGV("decoder %s flush completed", audio ? "audio" : "video");
726
727                if (needShutdown) {
728                    ALOGV("initiating %s decoder shutdown",
729                         audio ? "audio" : "video");
730
731                    (audio ? mAudioDecoder : mVideoDecoder)->initiateShutdown();
732
733                    if (audio) {
734                        mFlushingAudio = SHUTTING_DOWN_DECODER;
735                    } else {
736                        mFlushingVideo = SHUTTING_DOWN_DECODER;
737                    }
738                }
739
740                finishFlushIfPossible();
741            } else if (what == Decoder::kWhatOutputFormatChanged) {
742                sp<AMessage> format;
743                CHECK(msg->findMessage("format", &format));
744
745                if (audio) {
746                    int32_t numChannels;
747                    CHECK(format->findInt32(
748                                "channel-count", &numChannels));
749
750                    int32_t sampleRate;
751                    CHECK(format->findInt32("sample-rate", &sampleRate));
752
753                    ALOGV("Audio output format changed to %d Hz, %d channels",
754                         sampleRate, numChannels);
755
756                    mAudioSink->close();
757
758                    uint32_t flags;
759                    int64_t durationUs;
760                    // FIXME: we should handle the case where the video decoder
761                    // is created after we receive the format change indication.
762                    // Current code will just make that we select deep buffer
763                    // with video which should not be a problem as it should
764                    // not prevent from keeping A/V sync.
765                    if (mVideoDecoder == NULL &&
766                            mSource->getDuration(&durationUs) == OK &&
767                            durationUs
768                                > AUDIO_SINK_MIN_DEEP_BUFFER_DURATION_US) {
769                        flags = AUDIO_OUTPUT_FLAG_DEEP_BUFFER;
770                    } else {
771                        flags = AUDIO_OUTPUT_FLAG_NONE;
772                    }
773
774                    int32_t channelMask;
775                    if (!format->findInt32("channel-mask", &channelMask)) {
776                        channelMask = CHANNEL_MASK_USE_CHANNEL_ORDER;
777                    }
778
779                    if (mOffloadAudio) {
780                        audio_format_t audioFormat = AUDIO_FORMAT_PCM_16_BIT;
781                        audio_offload_info_t offloadInfo =
782                                AUDIO_INFO_INITIALIZER;
783
784                        AString mime;
785                        CHECK(format->findString("mime", &mime));
786
787                        status_t err =
788                            mapMimeToAudioFormat(audioFormat, mime.c_str());
789                        if (err != OK) {
790                            ALOGE("Couldn't map mime \"%s\" to a valid "
791                                    "audio_format", mime.c_str());
792                            mOffloadAudio = false;
793                        } else {
794                            ALOGV("Mime \"%s\" mapped to audio_format 0x%x",
795                                    mime.c_str(), audioFormat);
796
797                            int32_t aacProfile = -1;
798                            if (audioFormat == AUDIO_FORMAT_AAC
799                                    && format->findInt32("aac-profile", &aacProfile)) {
800                                // Redefine AAC format as per aac profile
801                                mapAACProfileToAudioFormat(
802                                        audioFormat,
803                                        aacProfile);
804                            }
805
806                            flags |= AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD;
807
808                            offloadInfo.duration_us = -1;
809                            format->findInt64(
810                                    "durationUs", &offloadInfo.duration_us);
811
812                            int avgBitRate = -1;
813                            format->findInt32("bit-rate", &avgBitRate);
814
815                            offloadInfo.sample_rate = sampleRate;
816                            offloadInfo.channel_mask = channelMask;
817                            offloadInfo.format = audioFormat;
818                            offloadInfo.stream_type = AUDIO_STREAM_MUSIC;
819                            offloadInfo.bit_rate = avgBitRate;
820                            offloadInfo.has_video = (mVideoDecoder != NULL);
821                            offloadInfo.is_streaming = true;
822
823                            ALOGV("try to open AudioSink in offload mode");
824                            err = mAudioSink->open(
825                                    sampleRate,
826                                    numChannels,
827                                    (audio_channel_mask_t)channelMask,
828                                    audioFormat,
829                                    8 /* bufferCount */,
830                                    &NuPlayer::Renderer::AudioSinkCallback,
831                                    mRenderer.get(),
832                                    (audio_output_flags_t)flags,
833                                    &offloadInfo);
834
835                            if (err == OK) {
836                                // If the playback is offloaded to h/w, we pass
837                                // the HAL some metadata information.
838                                // We don't want to do this for PCM because it
839                                // will be going through the AudioFlinger mixer
840                                // before reaching the hardware.
841                                sp<MetaData> audioMeta =
842                                    mSource->getFormatMeta(true /* audio */);
843                                sendMetaDataToHal(mAudioSink, audioMeta);
844
845                                err = mAudioSink->start();
846                            }
847                        }
848
849                        if (err != OK) {
850                            // Clean up, fall back to non offload mode.
851                            mAudioSink->close();
852                            mAudioDecoder.clear();
853                            mRenderer->signalDisableOffloadAudio();
854                            mOffloadAudio = false;
855
856                            instantiateDecoder(
857                                    true /* audio */, &mAudioDecoder);
858                        }
859                    }
860
861                    if (!mOffloadAudio) {
862                        flags &= ~AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD;
863                        ALOGV("open AudioSink in NON-offload mode");
864                        CHECK_EQ(mAudioSink->open(
865                                    sampleRate,
866                                    numChannels,
867                                    (audio_channel_mask_t)channelMask,
868                                    AUDIO_FORMAT_PCM_16_BIT,
869                                    8 /* bufferCount */,
870                                    NULL,
871                                    NULL,
872                                    (audio_output_flags_t)flags),
873                                 (status_t)OK);
874                        mAudioSink->start();
875                    }
876
877                    mRenderer->signalAudioSinkChanged();
878                } else {
879                    // video
880                    sp<AMessage> inputFormat =
881                            mSource->getFormat(false /* audio */);
882
883                    updateVideoSize(inputFormat, format);
884                }
885            } else if (what == Decoder::kWhatShutdownCompleted) {
886                ALOGV("%s shutdown completed", audio ? "audio" : "video");
887                if (audio) {
888                    mAudioDecoder.clear();
889
890                    CHECK_EQ((int)mFlushingAudio, (int)SHUTTING_DOWN_DECODER);
891                    mFlushingAudio = SHUT_DOWN;
892                } else {
893                    mVideoDecoder.clear();
894
895                    CHECK_EQ((int)mFlushingVideo, (int)SHUTTING_DOWN_DECODER);
896                    mFlushingVideo = SHUT_DOWN;
897                }
898
899                finishFlushIfPossible();
900            } else if (what == Decoder::kWhatError) {
901                ALOGE("Received error from %s decoder, aborting playback.",
902                     audio ? "audio" : "video");
903
904                mRenderer->queueEOS(audio, UNKNOWN_ERROR);
905            } else if (what == Decoder::kWhatDrainThisBuffer) {
906                renderBuffer(audio, msg);
907            } else {
908                ALOGV("Unhandled decoder notification %d '%c%c%c%c'.",
909                      what,
910                      what >> 24,
911                      (what >> 16) & 0xff,
912                      (what >> 8) & 0xff,
913                      what & 0xff);
914            }
915
916            break;
917        }
918
919        case kWhatRendererNotify:
920        {
921            int32_t what;
922            CHECK(msg->findInt32("what", &what));
923
924            if (what == Renderer::kWhatEOS) {
925                int32_t audio;
926                CHECK(msg->findInt32("audio", &audio));
927
928                int32_t finalResult;
929                CHECK(msg->findInt32("finalResult", &finalResult));
930
931                if (audio) {
932                    mAudioEOS = true;
933                } else {
934                    mVideoEOS = true;
935                }
936
937                if (finalResult == ERROR_END_OF_STREAM) {
938                    ALOGV("reached %s EOS", audio ? "audio" : "video");
939                } else {
940                    ALOGE("%s track encountered an error (%d)",
941                         audio ? "audio" : "video", finalResult);
942
943                    notifyListener(
944                            MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, finalResult);
945                }
946
947                if ((mAudioEOS || mAudioDecoder == NULL)
948                        && (mVideoEOS || mVideoDecoder == NULL)) {
949                    notifyListener(MEDIA_PLAYBACK_COMPLETE, 0, 0);
950                }
951            } else if (what == Renderer::kWhatPosition) {
952                int64_t positionUs;
953                CHECK(msg->findInt64("positionUs", &positionUs));
954
955                CHECK(msg->findInt64("videoLateByUs", &mVideoLateByUs));
956
957                if (mDriver != NULL) {
958                    sp<NuPlayerDriver> driver = mDriver.promote();
959                    if (driver != NULL) {
960                        driver->notifyPosition(positionUs);
961
962                        driver->notifyFrameStats(
963                                mNumFramesTotal, mNumFramesDropped);
964                    }
965                }
966            } else if (what == Renderer::kWhatFlushComplete) {
967                int32_t audio;
968                CHECK(msg->findInt32("audio", &audio));
969
970                ALOGV("renderer %s flush completed.", audio ? "audio" : "video");
971            } else if (what == Renderer::kWhatVideoRenderingStart) {
972                notifyListener(MEDIA_INFO, MEDIA_INFO_RENDERING_START, 0);
973            } else if (what == Renderer::kWhatMediaRenderingStart) {
974                ALOGV("media rendering started");
975                notifyListener(MEDIA_STARTED, 0, 0);
976            } else if (what == Renderer::kWhatAudioOffloadTearDown) {
977                ALOGV("Tear down audio offload, fall back to s/w path");
978                int64_t positionUs;
979                CHECK(msg->findInt64("positionUs", &positionUs));
980                mAudioSink->close();
981                mAudioDecoder.clear();
982                mRenderer->flush(true /* audio */);
983                if (mVideoDecoder != NULL) {
984                    mRenderer->flush(false /* audio */);
985                }
986                mRenderer->signalDisableOffloadAudio();
987                mOffloadAudio = false;
988
989                performSeek(positionUs);
990                instantiateDecoder(true /* audio */, &mAudioDecoder);
991            }
992            break;
993        }
994
995        case kWhatMoreDataQueued:
996        {
997            break;
998        }
999
1000        case kWhatReset:
1001        {
1002            ALOGV("kWhatReset");
1003
1004            mDeferredActions.push_back(
1005                    new ShutdownDecoderAction(
1006                        true /* audio */, true /* video */));
1007
1008            mDeferredActions.push_back(
1009                    new SimpleAction(&NuPlayer::performReset));
1010
1011            processDeferredActions();
1012            break;
1013        }
1014
1015        case kWhatSeek:
1016        {
1017            int64_t seekTimeUs;
1018            CHECK(msg->findInt64("seekTimeUs", &seekTimeUs));
1019
1020            ALOGV("kWhatSeek seekTimeUs=%lld us", seekTimeUs);
1021
1022            mDeferredActions.push_back(
1023                    new SimpleAction(&NuPlayer::performDecoderFlush));
1024
1025            mDeferredActions.push_back(new SeekAction(seekTimeUs));
1026
1027            processDeferredActions();
1028            break;
1029        }
1030
1031        case kWhatPause:
1032        {
1033            CHECK(mRenderer != NULL);
1034            mSource->pause();
1035            mRenderer->pause();
1036            break;
1037        }
1038
1039        case kWhatResume:
1040        {
1041            CHECK(mRenderer != NULL);
1042            mSource->resume();
1043            mRenderer->resume();
1044            break;
1045        }
1046
1047        case kWhatSourceNotify:
1048        {
1049            onSourceNotify(msg);
1050            break;
1051        }
1052
1053        case kWhatClosedCaptionNotify:
1054        {
1055            onClosedCaptionNotify(msg);
1056            break;
1057        }
1058
1059        default:
1060            TRESPASS();
1061            break;
1062    }
1063}
1064
1065void NuPlayer::finishFlushIfPossible() {
1066    if (mFlushingAudio != FLUSHED && mFlushingAudio != SHUT_DOWN) {
1067        return;
1068    }
1069
1070    if (mFlushingVideo != FLUSHED && mFlushingVideo != SHUT_DOWN) {
1071        return;
1072    }
1073
1074    ALOGV("both audio and video are flushed now.");
1075
1076    if (mTimeDiscontinuityPending) {
1077        mRenderer->signalTimeDiscontinuity();
1078        mTimeDiscontinuityPending = false;
1079    }
1080
1081    if (mAudioDecoder != NULL) {
1082        mAudioDecoder->signalResume();
1083    }
1084
1085    if (mVideoDecoder != NULL) {
1086        mVideoDecoder->signalResume();
1087    }
1088
1089    mFlushingAudio = NONE;
1090    mFlushingVideo = NONE;
1091
1092    processDeferredActions();
1093}
1094
1095void NuPlayer::postScanSources() {
1096    if (mScanSourcesPending) {
1097        return;
1098    }
1099
1100    sp<AMessage> msg = new AMessage(kWhatScanSources, id());
1101    msg->setInt32("generation", mScanSourcesGeneration);
1102    msg->post();
1103
1104    mScanSourcesPending = true;
1105}
1106
1107status_t NuPlayer::instantiateDecoder(bool audio, sp<Decoder> *decoder) {
1108    if (*decoder != NULL) {
1109        return OK;
1110    }
1111
1112    sp<AMessage> format = mSource->getFormat(audio);
1113
1114    if (format == NULL) {
1115        return -EWOULDBLOCK;
1116    }
1117
1118    if (!audio) {
1119        AString mime;
1120        CHECK(format->findString("mime", &mime));
1121        mVideoIsAVC = !strcasecmp(MEDIA_MIMETYPE_VIDEO_AVC, mime.c_str());
1122
1123        sp<AMessage> ccNotify = new AMessage(kWhatClosedCaptionNotify, id());
1124        mCCDecoder = new CCDecoder(ccNotify);
1125
1126        if (mSourceFlags & Source::FLAG_SECURE) {
1127            format->setInt32("secure", true);
1128        }
1129    }
1130
1131    sp<AMessage> notify =
1132        new AMessage(audio ? kWhatAudioNotify : kWhatVideoNotify,
1133                     id());
1134
1135    if (audio) {
1136        if (mOffloadAudio) {
1137            *decoder = new DecoderPassThrough(notify);
1138        } else {
1139            *decoder = new Decoder(notify);
1140        }
1141    } else {
1142        *decoder = new Decoder(notify, mNativeWindow);
1143    }
1144    (*decoder)->init();
1145    (*decoder)->configure(format);
1146
1147    // allocate buffers to decrypt widevine source buffers
1148    if (!audio && (mSourceFlags & Source::FLAG_SECURE)) {
1149        Vector<sp<ABuffer> > inputBufs;
1150        CHECK_EQ((*decoder)->getInputBuffers(&inputBufs), (status_t)OK);
1151
1152        Vector<MediaBuffer *> mediaBufs;
1153        for (size_t i = 0; i < inputBufs.size(); i++) {
1154            const sp<ABuffer> &buffer = inputBufs[i];
1155            MediaBuffer *mbuf = new MediaBuffer(buffer->data(), buffer->size());
1156            mediaBufs.push(mbuf);
1157        }
1158
1159        status_t err = mSource->setBuffers(audio, mediaBufs);
1160        if (err != OK) {
1161            for (size_t i = 0; i < mediaBufs.size(); ++i) {
1162                mediaBufs[i]->release();
1163            }
1164            mediaBufs.clear();
1165            ALOGE("Secure source didn't support secure mediaBufs.");
1166            return err;
1167        }
1168    }
1169    return OK;
1170}
1171
1172status_t NuPlayer::feedDecoderInputData(bool audio, const sp<AMessage> &msg) {
1173    sp<AMessage> reply;
1174    CHECK(msg->findMessage("reply", &reply));
1175
1176    if ((audio && IsFlushingState(mFlushingAudio))
1177            || (!audio && IsFlushingState(mFlushingVideo))) {
1178        reply->setInt32("err", INFO_DISCONTINUITY);
1179        reply->post();
1180        return OK;
1181    }
1182
1183    sp<ABuffer> accessUnit;
1184
1185    bool dropAccessUnit;
1186    do {
1187        status_t err = mSource->dequeueAccessUnit(audio, &accessUnit);
1188
1189        if (err == -EWOULDBLOCK) {
1190            return err;
1191        } else if (err != OK) {
1192            if (err == INFO_DISCONTINUITY) {
1193                int32_t type;
1194                CHECK(accessUnit->meta()->findInt32("discontinuity", &type));
1195
1196                bool formatChange =
1197                    (audio &&
1198                     (type & ATSParser::DISCONTINUITY_AUDIO_FORMAT))
1199                    || (!audio &&
1200                            (type & ATSParser::DISCONTINUITY_VIDEO_FORMAT));
1201
1202                bool timeChange = (type & ATSParser::DISCONTINUITY_TIME) != 0;
1203
1204                ALOGI("%s discontinuity (formatChange=%d, time=%d)",
1205                     audio ? "audio" : "video", formatChange, timeChange);
1206
1207                if (audio) {
1208                    mSkipRenderingAudioUntilMediaTimeUs = -1;
1209                } else {
1210                    mSkipRenderingVideoUntilMediaTimeUs = -1;
1211                }
1212
1213                if (timeChange) {
1214                    sp<AMessage> extra;
1215                    if (accessUnit->meta()->findMessage("extra", &extra)
1216                            && extra != NULL) {
1217                        int64_t resumeAtMediaTimeUs;
1218                        if (extra->findInt64(
1219                                    "resume-at-mediatimeUs", &resumeAtMediaTimeUs)) {
1220                            ALOGI("suppressing rendering of %s until %lld us",
1221                                    audio ? "audio" : "video", resumeAtMediaTimeUs);
1222
1223                            if (audio) {
1224                                mSkipRenderingAudioUntilMediaTimeUs =
1225                                    resumeAtMediaTimeUs;
1226                            } else {
1227                                mSkipRenderingVideoUntilMediaTimeUs =
1228                                    resumeAtMediaTimeUs;
1229                            }
1230                        }
1231                    }
1232                }
1233
1234                mTimeDiscontinuityPending =
1235                    mTimeDiscontinuityPending || timeChange;
1236
1237                if (mFlushingAudio == NONE && mFlushingVideo == NONE) {
1238                    // And we'll resume scanning sources once we're done
1239                    // flushing.
1240                    mDeferredActions.push_front(
1241                            new SimpleAction(
1242                                &NuPlayer::performScanSources));
1243                }
1244
1245                if (formatChange || timeChange) {
1246
1247                    sp<AMessage> newFormat = mSource->getFormat(audio);
1248                    sp<Decoder> &decoder = audio ? mAudioDecoder : mVideoDecoder;
1249                    if (formatChange && !decoder->supportsSeamlessFormatChange(newFormat)) {
1250                        flushDecoder(audio, /* needShutdown = */ true);
1251                    } else {
1252                        flushDecoder(audio, /* needShutdown = */ false);
1253                        err = OK;
1254                    }
1255                } else {
1256                    // This stream is unaffected by the discontinuity
1257
1258                    if (audio) {
1259                        mFlushingAudio = FLUSHED;
1260                    } else {
1261                        mFlushingVideo = FLUSHED;
1262                    }
1263
1264                    finishFlushIfPossible();
1265
1266                    return -EWOULDBLOCK;
1267                }
1268            }
1269
1270            reply->setInt32("err", err);
1271            reply->post();
1272            return OK;
1273        }
1274
1275        if (!audio) {
1276            ++mNumFramesTotal;
1277        }
1278
1279        dropAccessUnit = false;
1280        if (!audio
1281                && !(mSourceFlags & Source::FLAG_SECURE)
1282                && mVideoLateByUs > 100000ll
1283                && mVideoIsAVC
1284                && !IsAVCReferenceFrame(accessUnit)) {
1285            dropAccessUnit = true;
1286            ++mNumFramesDropped;
1287        }
1288    } while (dropAccessUnit);
1289
1290    // ALOGV("returned a valid buffer of %s data", audio ? "audio" : "video");
1291
1292#if 0
1293    int64_t mediaTimeUs;
1294    CHECK(accessUnit->meta()->findInt64("timeUs", &mediaTimeUs));
1295    ALOGV("feeding %s input buffer at media time %.2f secs",
1296         audio ? "audio" : "video",
1297         mediaTimeUs / 1E6);
1298#endif
1299
1300    if (!audio) {
1301        mCCDecoder->decode(accessUnit);
1302    }
1303
1304    reply->setBuffer("buffer", accessUnit);
1305    reply->post();
1306
1307    return OK;
1308}
1309
1310void NuPlayer::renderBuffer(bool audio, const sp<AMessage> &msg) {
1311    // ALOGV("renderBuffer %s", audio ? "audio" : "video");
1312
1313    sp<AMessage> reply;
1314    CHECK(msg->findMessage("reply", &reply));
1315
1316    if (IsFlushingState(audio ? mFlushingAudio : mFlushingVideo)) {
1317        // We're currently attempting to flush the decoder, in order
1318        // to complete this, the decoder wants all its buffers back,
1319        // so we don't want any output buffers it sent us (from before
1320        // we initiated the flush) to be stuck in the renderer's queue.
1321
1322        ALOGV("we're still flushing the %s decoder, sending its output buffer"
1323             " right back.", audio ? "audio" : "video");
1324
1325        reply->post();
1326        return;
1327    }
1328
1329    sp<ABuffer> buffer;
1330    CHECK(msg->findBuffer("buffer", &buffer));
1331
1332    int64_t mediaTimeUs;
1333    CHECK(buffer->meta()->findInt64("timeUs", &mediaTimeUs));
1334
1335    int64_t &skipUntilMediaTimeUs =
1336        audio
1337            ? mSkipRenderingAudioUntilMediaTimeUs
1338            : mSkipRenderingVideoUntilMediaTimeUs;
1339
1340    if (skipUntilMediaTimeUs >= 0) {
1341
1342        if (mediaTimeUs < skipUntilMediaTimeUs) {
1343            ALOGV("dropping %s buffer at time %lld as requested.",
1344                 audio ? "audio" : "video",
1345                 mediaTimeUs);
1346
1347            reply->post();
1348            return;
1349        }
1350
1351        skipUntilMediaTimeUs = -1;
1352    }
1353
1354    if (!audio && mCCDecoder->isSelected()) {
1355        mCCDecoder->display(mediaTimeUs);
1356    }
1357
1358    mRenderer->queueBuffer(audio, buffer, reply);
1359}
1360
1361void NuPlayer::updateVideoSize(
1362        const sp<AMessage> &inputFormat,
1363        const sp<AMessage> &outputFormat) {
1364    if (inputFormat == NULL) {
1365        ALOGW("Unknown video size, reporting 0x0!");
1366        notifyListener(MEDIA_SET_VIDEO_SIZE, 0, 0);
1367        return;
1368    }
1369
1370    int32_t displayWidth, displayHeight;
1371    int32_t cropLeft, cropTop, cropRight, cropBottom;
1372
1373    if (outputFormat != NULL) {
1374        int32_t width, height;
1375        CHECK(outputFormat->findInt32("width", &width));
1376        CHECK(outputFormat->findInt32("height", &height));
1377
1378        int32_t cropLeft, cropTop, cropRight, cropBottom;
1379        CHECK(outputFormat->findRect(
1380                    "crop",
1381                    &cropLeft, &cropTop, &cropRight, &cropBottom));
1382
1383        displayWidth = cropRight - cropLeft + 1;
1384        displayHeight = cropBottom - cropTop + 1;
1385
1386        ALOGV("Video output format changed to %d x %d "
1387             "(crop: %d x %d @ (%d, %d))",
1388             width, height,
1389             displayWidth,
1390             displayHeight,
1391             cropLeft, cropTop);
1392    } else {
1393        CHECK(inputFormat->findInt32("width", &displayWidth));
1394        CHECK(inputFormat->findInt32("height", &displayHeight));
1395
1396        ALOGV("Video input format %d x %d", displayWidth, displayHeight);
1397    }
1398
1399    // Take into account sample aspect ratio if necessary:
1400    int32_t sarWidth, sarHeight;
1401    if (inputFormat->findInt32("sar-width", &sarWidth)
1402            && inputFormat->findInt32("sar-height", &sarHeight)) {
1403        ALOGV("Sample aspect ratio %d : %d", sarWidth, sarHeight);
1404
1405        displayWidth = (displayWidth * sarWidth) / sarHeight;
1406
1407        ALOGV("display dimensions %d x %d", displayWidth, displayHeight);
1408    }
1409
1410    int32_t rotationDegrees;
1411    if (!inputFormat->findInt32("rotation-degrees", &rotationDegrees)) {
1412        rotationDegrees = 0;
1413    }
1414
1415    if (rotationDegrees == 90 || rotationDegrees == 270) {
1416        int32_t tmp = displayWidth;
1417        displayWidth = displayHeight;
1418        displayHeight = tmp;
1419    }
1420
1421    notifyListener(
1422            MEDIA_SET_VIDEO_SIZE,
1423            displayWidth,
1424            displayHeight);
1425}
1426
1427void NuPlayer::notifyListener(int msg, int ext1, int ext2, const Parcel *in) {
1428    if (mDriver == NULL) {
1429        return;
1430    }
1431
1432    sp<NuPlayerDriver> driver = mDriver.promote();
1433
1434    if (driver == NULL) {
1435        return;
1436    }
1437
1438    driver->notifyListener(msg, ext1, ext2, in);
1439}
1440
1441void NuPlayer::flushDecoder(bool audio, bool needShutdown) {
1442    ALOGV("[%s] flushDecoder needShutdown=%d",
1443          audio ? "audio" : "video", needShutdown);
1444
1445    if ((audio && mAudioDecoder == NULL) || (!audio && mVideoDecoder == NULL)) {
1446        ALOGI("flushDecoder %s without decoder present",
1447             audio ? "audio" : "video");
1448    }
1449
1450    // Make sure we don't continue to scan sources until we finish flushing.
1451    ++mScanSourcesGeneration;
1452    mScanSourcesPending = false;
1453
1454    (audio ? mAudioDecoder : mVideoDecoder)->signalFlush();
1455    mRenderer->flush(audio);
1456
1457    FlushStatus newStatus =
1458        needShutdown ? FLUSHING_DECODER_SHUTDOWN : FLUSHING_DECODER;
1459
1460    if (audio) {
1461        CHECK(mFlushingAudio == NONE
1462                || mFlushingAudio == AWAITING_DISCONTINUITY);
1463
1464        mFlushingAudio = newStatus;
1465
1466        if (mFlushingVideo == NONE) {
1467            mFlushingVideo = (mVideoDecoder != NULL)
1468                ? AWAITING_DISCONTINUITY
1469                : FLUSHED;
1470        }
1471    } else {
1472        CHECK(mFlushingVideo == NONE
1473                || mFlushingVideo == AWAITING_DISCONTINUITY);
1474
1475        mFlushingVideo = newStatus;
1476
1477        if (mFlushingAudio == NONE) {
1478            mFlushingAudio = (mAudioDecoder != NULL)
1479                ? AWAITING_DISCONTINUITY
1480                : FLUSHED;
1481        }
1482    }
1483}
1484
1485void NuPlayer::queueDecoderShutdown(
1486        bool audio, bool video, const sp<AMessage> &reply) {
1487    ALOGI("queueDecoderShutdown audio=%d, video=%d", audio, video);
1488
1489    mDeferredActions.push_back(
1490            new ShutdownDecoderAction(audio, video));
1491
1492    mDeferredActions.push_back(
1493            new SimpleAction(&NuPlayer::performScanSources));
1494
1495    mDeferredActions.push_back(new PostMessageAction(reply));
1496
1497    processDeferredActions();
1498}
1499
1500status_t NuPlayer::setVideoScalingMode(int32_t mode) {
1501    mVideoScalingMode = mode;
1502    if (mNativeWindow != NULL) {
1503        status_t ret = native_window_set_scaling_mode(
1504                mNativeWindow->getNativeWindow().get(), mVideoScalingMode);
1505        if (ret != OK) {
1506            ALOGE("Failed to set scaling mode (%d): %s",
1507                -ret, strerror(-ret));
1508            return ret;
1509        }
1510    }
1511    return OK;
1512}
1513
1514status_t NuPlayer::getTrackInfo(Parcel* reply) const {
1515    sp<AMessage> msg = new AMessage(kWhatGetTrackInfo, id());
1516    msg->setPointer("reply", reply);
1517
1518    sp<AMessage> response;
1519    status_t err = msg->postAndAwaitResponse(&response);
1520    return err;
1521}
1522
1523status_t NuPlayer::getSelectedTrack(int32_t type, Parcel* reply) const {
1524    sp<AMessage> msg = new AMessage(kWhatGetSelectedTrack, id());
1525    msg->setPointer("reply", reply);
1526    msg->setInt32("type", type);
1527
1528    sp<AMessage> response;
1529    status_t err = msg->postAndAwaitResponse(&response);
1530    if (err == OK && response != NULL) {
1531        CHECK(response->findInt32("err", &err));
1532    }
1533    return err;
1534}
1535
1536status_t NuPlayer::selectTrack(size_t trackIndex, bool select) {
1537    sp<AMessage> msg = new AMessage(kWhatSelectTrack, id());
1538    msg->setSize("trackIndex", trackIndex);
1539    msg->setInt32("select", select);
1540
1541    sp<AMessage> response;
1542    status_t err = msg->postAndAwaitResponse(&response);
1543
1544    if (err != OK) {
1545        return err;
1546    }
1547
1548    if (!response->findInt32("err", &err)) {
1549        err = OK;
1550    }
1551
1552    return err;
1553}
1554
1555void NuPlayer::schedulePollDuration() {
1556    sp<AMessage> msg = new AMessage(kWhatPollDuration, id());
1557    msg->setInt32("generation", mPollDurationGeneration);
1558    msg->post();
1559}
1560
1561void NuPlayer::cancelPollDuration() {
1562    ++mPollDurationGeneration;
1563}
1564
1565void NuPlayer::processDeferredActions() {
1566    while (!mDeferredActions.empty()) {
1567        // We won't execute any deferred actions until we're no longer in
1568        // an intermediate state, i.e. one more more decoders are currently
1569        // flushing or shutting down.
1570
1571        if (mRenderer != NULL) {
1572            // There's an edge case where the renderer owns all output
1573            // buffers and is paused, therefore the decoder will not read
1574            // more input data and will never encounter the matching
1575            // discontinuity. To avoid this, we resume the renderer.
1576
1577            if (mFlushingAudio == AWAITING_DISCONTINUITY
1578                    || mFlushingVideo == AWAITING_DISCONTINUITY) {
1579                mRenderer->resume();
1580            }
1581        }
1582
1583        if (mFlushingAudio != NONE || mFlushingVideo != NONE) {
1584            // We're currently flushing, postpone the reset until that's
1585            // completed.
1586
1587            ALOGV("postponing action mFlushingAudio=%d, mFlushingVideo=%d",
1588                  mFlushingAudio, mFlushingVideo);
1589
1590            break;
1591        }
1592
1593        sp<Action> action = *mDeferredActions.begin();
1594        mDeferredActions.erase(mDeferredActions.begin());
1595
1596        action->execute(this);
1597    }
1598}
1599
1600void NuPlayer::performSeek(int64_t seekTimeUs) {
1601    ALOGV("performSeek seekTimeUs=%lld us (%.2f secs)",
1602          seekTimeUs,
1603          seekTimeUs / 1E6);
1604
1605    mSource->seekTo(seekTimeUs);
1606    ++mTimedTextGeneration;
1607
1608    if (mDriver != NULL) {
1609        sp<NuPlayerDriver> driver = mDriver.promote();
1610        if (driver != NULL) {
1611            driver->notifyPosition(seekTimeUs);
1612            driver->notifySeekComplete();
1613        }
1614    }
1615
1616    // everything's flushed, continue playback.
1617}
1618
1619void NuPlayer::performDecoderFlush() {
1620    ALOGV("performDecoderFlush");
1621
1622    if (mAudioDecoder == NULL && mVideoDecoder == NULL) {
1623        return;
1624    }
1625
1626    mTimeDiscontinuityPending = true;
1627
1628    if (mAudioDecoder != NULL) {
1629        flushDecoder(true /* audio */, false /* needShutdown */);
1630    }
1631
1632    if (mVideoDecoder != NULL) {
1633        flushDecoder(false /* audio */, false /* needShutdown */);
1634    }
1635}
1636
1637void NuPlayer::performDecoderShutdown(bool audio, bool video) {
1638    ALOGV("performDecoderShutdown audio=%d, video=%d", audio, video);
1639
1640    if ((!audio || mAudioDecoder == NULL)
1641            && (!video || mVideoDecoder == NULL)) {
1642        return;
1643    }
1644
1645    mTimeDiscontinuityPending = true;
1646
1647    if (mFlushingAudio == NONE && (!audio || mAudioDecoder == NULL)) {
1648        mFlushingAudio = FLUSHED;
1649    }
1650
1651    if (mFlushingVideo == NONE && (!video || mVideoDecoder == NULL)) {
1652        mFlushingVideo = FLUSHED;
1653    }
1654
1655    if (audio && mAudioDecoder != NULL) {
1656        flushDecoder(true /* audio */, true /* needShutdown */);
1657    }
1658
1659    if (video && mVideoDecoder != NULL) {
1660        flushDecoder(false /* audio */, true /* needShutdown */);
1661    }
1662}
1663
1664void NuPlayer::performReset() {
1665    ALOGV("performReset");
1666
1667    CHECK(mAudioDecoder == NULL);
1668    CHECK(mVideoDecoder == NULL);
1669
1670    cancelPollDuration();
1671
1672    ++mScanSourcesGeneration;
1673    mScanSourcesPending = false;
1674
1675    if (mRendererLooper != NULL) {
1676        if (mRenderer != NULL) {
1677            mRendererLooper->unregisterHandler(mRenderer->id());
1678        }
1679        mRendererLooper->stop();
1680        mRendererLooper.clear();
1681    }
1682    mRenderer.clear();
1683
1684    if (mSource != NULL) {
1685        mSource->stop();
1686
1687        looper()->unregisterHandler(mSource->id());
1688
1689        mSource.clear();
1690    }
1691
1692    if (mDriver != NULL) {
1693        sp<NuPlayerDriver> driver = mDriver.promote();
1694        if (driver != NULL) {
1695            driver->notifyResetComplete();
1696        }
1697    }
1698
1699    mStarted = false;
1700}
1701
1702void NuPlayer::performScanSources() {
1703    ALOGV("performScanSources");
1704
1705    if (!mStarted) {
1706        return;
1707    }
1708
1709    if (mAudioDecoder == NULL || mVideoDecoder == NULL) {
1710        postScanSources();
1711    }
1712}
1713
1714void NuPlayer::performSetSurface(const sp<NativeWindowWrapper> &wrapper) {
1715    ALOGV("performSetSurface");
1716
1717    mNativeWindow = wrapper;
1718
1719    // XXX - ignore error from setVideoScalingMode for now
1720    setVideoScalingMode(mVideoScalingMode);
1721
1722    if (mDriver != NULL) {
1723        sp<NuPlayerDriver> driver = mDriver.promote();
1724        if (driver != NULL) {
1725            driver->notifySetSurfaceComplete();
1726        }
1727    }
1728}
1729
1730void NuPlayer::onSourceNotify(const sp<AMessage> &msg) {
1731    int32_t what;
1732    CHECK(msg->findInt32("what", &what));
1733
1734    switch (what) {
1735        case Source::kWhatPrepared:
1736        {
1737            if (mSource == NULL) {
1738                // This is a stale notification from a source that was
1739                // asynchronously preparing when the client called reset().
1740                // We handled the reset, the source is gone.
1741                break;
1742            }
1743
1744            int32_t err;
1745            CHECK(msg->findInt32("err", &err));
1746
1747            sp<NuPlayerDriver> driver = mDriver.promote();
1748            if (driver != NULL) {
1749                // notify duration first, so that it's definitely set when
1750                // the app received the "prepare complete" callback.
1751                int64_t durationUs;
1752                if (mSource->getDuration(&durationUs) == OK) {
1753                    driver->notifyDuration(durationUs);
1754                }
1755                driver->notifyPrepareCompleted(err);
1756            }
1757
1758            break;
1759        }
1760
1761        case Source::kWhatFlagsChanged:
1762        {
1763            uint32_t flags;
1764            CHECK(msg->findInt32("flags", (int32_t *)&flags));
1765
1766            sp<NuPlayerDriver> driver = mDriver.promote();
1767            if (driver != NULL) {
1768                driver->notifyFlagsChanged(flags);
1769            }
1770
1771            if ((mSourceFlags & Source::FLAG_DYNAMIC_DURATION)
1772                    && (!(flags & Source::FLAG_DYNAMIC_DURATION))) {
1773                cancelPollDuration();
1774            } else if (!(mSourceFlags & Source::FLAG_DYNAMIC_DURATION)
1775                    && (flags & Source::FLAG_DYNAMIC_DURATION)
1776                    && (mAudioDecoder != NULL || mVideoDecoder != NULL)) {
1777                schedulePollDuration();
1778            }
1779
1780            mSourceFlags = flags;
1781            break;
1782        }
1783
1784        case Source::kWhatVideoSizeChanged:
1785        {
1786            sp<AMessage> format;
1787            CHECK(msg->findMessage("format", &format));
1788
1789            updateVideoSize(format);
1790            break;
1791        }
1792
1793        case Source::kWhatBufferingStart:
1794        {
1795            notifyListener(MEDIA_INFO, MEDIA_INFO_BUFFERING_START, 0);
1796            break;
1797        }
1798
1799        case Source::kWhatBufferingEnd:
1800        {
1801            notifyListener(MEDIA_INFO, MEDIA_INFO_BUFFERING_END, 0);
1802            break;
1803        }
1804
1805        case Source::kWhatSubtitleData:
1806        {
1807            sp<ABuffer> buffer;
1808            CHECK(msg->findBuffer("buffer", &buffer));
1809
1810            sendSubtitleData(buffer, 0 /* baseIndex */);
1811            break;
1812        }
1813
1814        case Source::kWhatTimedTextData:
1815        {
1816            int32_t generation;
1817            if (msg->findInt32("generation", &generation)
1818                    && generation != mTimedTextGeneration) {
1819                break;
1820            }
1821
1822            sp<ABuffer> buffer;
1823            CHECK(msg->findBuffer("buffer", &buffer));
1824
1825            sp<NuPlayerDriver> driver = mDriver.promote();
1826            if (driver == NULL) {
1827                break;
1828            }
1829
1830            int posMs;
1831            int64_t timeUs, posUs;
1832            driver->getCurrentPosition(&posMs);
1833            posUs = posMs * 1000;
1834            CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
1835
1836            if (posUs < timeUs) {
1837                if (!msg->findInt32("generation", &generation)) {
1838                    msg->setInt32("generation", mTimedTextGeneration);
1839                }
1840                msg->post(timeUs - posUs);
1841            } else {
1842                sendTimedTextData(buffer);
1843            }
1844            break;
1845        }
1846
1847        case Source::kWhatQueueDecoderShutdown:
1848        {
1849            int32_t audio, video;
1850            CHECK(msg->findInt32("audio", &audio));
1851            CHECK(msg->findInt32("video", &video));
1852
1853            sp<AMessage> reply;
1854            CHECK(msg->findMessage("reply", &reply));
1855
1856            queueDecoderShutdown(audio, video, reply);
1857            break;
1858        }
1859
1860        default:
1861            TRESPASS();
1862    }
1863}
1864
1865void NuPlayer::onClosedCaptionNotify(const sp<AMessage> &msg) {
1866    int32_t what;
1867    CHECK(msg->findInt32("what", &what));
1868
1869    switch (what) {
1870        case NuPlayer::CCDecoder::kWhatClosedCaptionData:
1871        {
1872            sp<ABuffer> buffer;
1873            CHECK(msg->findBuffer("buffer", &buffer));
1874
1875            size_t inbandTracks = 0;
1876            if (mSource != NULL) {
1877                inbandTracks = mSource->getTrackCount();
1878            }
1879
1880            sendSubtitleData(buffer, inbandTracks);
1881            break;
1882        }
1883
1884        case NuPlayer::CCDecoder::kWhatTrackAdded:
1885        {
1886            notifyListener(MEDIA_INFO, MEDIA_INFO_METADATA_UPDATE, 0);
1887
1888            break;
1889        }
1890
1891        default:
1892            TRESPASS();
1893    }
1894
1895
1896}
1897
1898void NuPlayer::sendSubtitleData(const sp<ABuffer> &buffer, int32_t baseIndex) {
1899    int32_t trackIndex;
1900    int64_t timeUs, durationUs;
1901    CHECK(buffer->meta()->findInt32("trackIndex", &trackIndex));
1902    CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
1903    CHECK(buffer->meta()->findInt64("durationUs", &durationUs));
1904
1905    Parcel in;
1906    in.writeInt32(trackIndex + baseIndex);
1907    in.writeInt64(timeUs);
1908    in.writeInt64(durationUs);
1909    in.writeInt32(buffer->size());
1910    in.writeInt32(buffer->size());
1911    in.write(buffer->data(), buffer->size());
1912
1913    notifyListener(MEDIA_SUBTITLE_DATA, 0, 0, &in);
1914}
1915
1916void NuPlayer::sendTimedTextData(const sp<ABuffer> &buffer) {
1917    const void *data;
1918    size_t size = 0;
1919    int64_t timeUs;
1920    int32_t flag = TextDescriptions::LOCAL_DESCRIPTIONS;
1921
1922    AString mime;
1923    CHECK(buffer->meta()->findString("mime", &mime));
1924    CHECK(strcasecmp(mime.c_str(), MEDIA_MIMETYPE_TEXT_3GPP) == 0);
1925
1926    data = buffer->data();
1927    size = buffer->size();
1928
1929    Parcel parcel;
1930    if (size > 0) {
1931        CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
1932        flag |= TextDescriptions::IN_BAND_TEXT_3GPP;
1933        TextDescriptions::getParcelOfDescriptions(
1934                (const uint8_t *)data, size, flag, timeUs / 1000, &parcel);
1935    }
1936
1937    if ((parcel.dataSize() > 0)) {
1938        notifyListener(MEDIA_TIMED_TEXT, 0, 0, &parcel);
1939    } else {  // send an empty timed text
1940        notifyListener(MEDIA_TIMED_TEXT, 0, 0);
1941    }
1942}
1943////////////////////////////////////////////////////////////////////////////////
1944
1945sp<AMessage> NuPlayer::Source::getFormat(bool audio) {
1946    sp<MetaData> meta = getFormatMeta(audio);
1947
1948    if (meta == NULL) {
1949        return NULL;
1950    }
1951
1952    sp<AMessage> msg = new AMessage;
1953
1954    if(convertMetaDataToMessage(meta, &msg) == OK) {
1955        return msg;
1956    }
1957    return NULL;
1958}
1959
1960void NuPlayer::Source::notifyFlagsChanged(uint32_t flags) {
1961    sp<AMessage> notify = dupNotify();
1962    notify->setInt32("what", kWhatFlagsChanged);
1963    notify->setInt32("flags", flags);
1964    notify->post();
1965}
1966
1967void NuPlayer::Source::notifyVideoSizeChanged(const sp<AMessage> &format) {
1968    sp<AMessage> notify = dupNotify();
1969    notify->setInt32("what", kWhatVideoSizeChanged);
1970    notify->setMessage("format", format);
1971    notify->post();
1972}
1973
1974void NuPlayer::Source::notifyPrepared(status_t err) {
1975    sp<AMessage> notify = dupNotify();
1976    notify->setInt32("what", kWhatPrepared);
1977    notify->setInt32("err", err);
1978    notify->post();
1979}
1980
1981void NuPlayer::Source::onMessageReceived(const sp<AMessage> & /* msg */) {
1982    TRESPASS();
1983}
1984
1985}  // namespace android
1986