NuPlayer.cpp revision e46711343b43786c049a007369a72c1c78e6c5db 
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    sp<AMessage> msg = new AMessage(kWhatSetDataSource, id());
211    size_t len = strlen(url);
212
213    sp<AMessage> notify = new AMessage(kWhatSourceNotify, id());
214
215    sp<Source> source;
216    if (IsHTTPLiveURL(url)) {
217        source = new HTTPLiveSource(notify, httpService, url, headers);
218    } else if (!strncasecmp(url, "rtsp://", 7)) {
219        source = new RTSPSource(
220                notify, httpService, url, headers, mUIDValid, mUID);
221    } else if ((!strncasecmp(url, "http://", 7)
222                || !strncasecmp(url, "https://", 8))
223                    && ((len >= 4 && !strcasecmp(".sdp", &url[len - 4]))
224                    || strstr(url, ".sdp?"))) {
225        source = new RTSPSource(
226                notify, httpService, url, headers, mUIDValid, mUID, true);
227    } else if ((!strncasecmp(url, "widevine://", 11))) {
228        source = new GenericSource(notify, httpService, url, headers,
229                true /* isWidevine */, mUIDValid, mUID);
230        // Don't set FLAG_SECURE on mSourceFlags here, the correct flags
231        // will be updated in Source::kWhatFlagsChanged handler when
232        // GenericSource is prepared.
233    } else {
234        source = new GenericSource(notify, httpService, url, headers);
235    }
236
237    msg->setObject("source", source);
238    msg->post();
239}
240
241void NuPlayer::setDataSourceAsync(int fd, int64_t offset, int64_t length) {
242    sp<AMessage> msg = new AMessage(kWhatSetDataSource, id());
243
244    sp<AMessage> notify = new AMessage(kWhatSourceNotify, id());
245
246    sp<Source> source = new GenericSource(notify, fd, offset, length);
247    msg->setObject("source", source);
248    msg->post();
249}
250
251void NuPlayer::prepareAsync() {
252    (new AMessage(kWhatPrepare, id()))->post();
253}
254
255void NuPlayer::setVideoSurfaceTextureAsync(
256        const sp<IGraphicBufferProducer> &bufferProducer) {
257    sp<AMessage> msg = new AMessage(kWhatSetVideoNativeWindow, id());
258
259    if (bufferProducer == NULL) {
260        msg->setObject("native-window", NULL);
261    } else {
262        msg->setObject(
263                "native-window",
264                new NativeWindowWrapper(
265                    new Surface(bufferProducer)));
266    }
267
268    msg->post();
269}
270
271void NuPlayer::setAudioSink(const sp<MediaPlayerBase::AudioSink> &sink) {
272    sp<AMessage> msg = new AMessage(kWhatSetAudioSink, id());
273    msg->setObject("sink", sink);
274    msg->post();
275}
276
277void NuPlayer::start() {
278    (new AMessage(kWhatStart, id()))->post();
279}
280
281void NuPlayer::pause() {
282    (new AMessage(kWhatPause, id()))->post();
283}
284
285void NuPlayer::resume() {
286    (new AMessage(kWhatResume, id()))->post();
287}
288
289void NuPlayer::resetAsync() {
290    (new AMessage(kWhatReset, id()))->post();
291}
292
293void NuPlayer::seekToAsync(int64_t seekTimeUs) {
294    sp<AMessage> msg = new AMessage(kWhatSeek, id());
295    msg->setInt64("seekTimeUs", seekTimeUs);
296    msg->post();
297}
298
299// static
300bool NuPlayer::IsFlushingState(FlushStatus state, bool *needShutdown) {
301    switch (state) {
302        case FLUSHING_DECODER:
303            if (needShutdown != NULL) {
304                *needShutdown = false;
305            }
306            return true;
307
308        case FLUSHING_DECODER_SHUTDOWN:
309            if (needShutdown != NULL) {
310                *needShutdown = true;
311            }
312            return true;
313
314        default:
315            return false;
316    }
317}
318
319void NuPlayer::writeTrackInfo(
320        Parcel* reply, const sp<AMessage> format) const {
321    int32_t trackType;
322    CHECK(format->findInt32("type", &trackType));
323
324    AString lang;
325    CHECK(format->findString("language", &lang));
326
327    reply->writeInt32(2); // write something non-zero
328    reply->writeInt32(trackType);
329    reply->writeString16(String16(lang.c_str()));
330
331    if (trackType == MEDIA_TRACK_TYPE_SUBTITLE) {
332        AString mime;
333        CHECK(format->findString("mime", &mime));
334
335        int32_t isAuto, isDefault, isForced;
336        CHECK(format->findInt32("auto", &isAuto));
337        CHECK(format->findInt32("default", &isDefault));
338        CHECK(format->findInt32("forced", &isForced));
339
340        reply->writeString16(String16(mime.c_str()));
341        reply->writeInt32(isAuto);
342        reply->writeInt32(isDefault);
343        reply->writeInt32(isForced);
344    }
345}
346
347void NuPlayer::onMessageReceived(const sp<AMessage> &msg) {
348    switch (msg->what()) {
349        case kWhatSetDataSource:
350        {
351            ALOGV("kWhatSetDataSource");
352
353            CHECK(mSource == NULL);
354
355            sp<RefBase> obj;
356            CHECK(msg->findObject("source", &obj));
357
358            mSource = static_cast<Source *>(obj.get());
359
360            looper()->registerHandler(mSource);
361
362            CHECK(mDriver != NULL);
363            sp<NuPlayerDriver> driver = mDriver.promote();
364            if (driver != NULL) {
365                driver->notifySetDataSourceCompleted(OK);
366            }
367            break;
368        }
369
370        case kWhatPrepare:
371        {
372            mSource->prepareAsync();
373            break;
374        }
375
376        case kWhatGetTrackInfo:
377        {
378            uint32_t replyID;
379            CHECK(msg->senderAwaitsResponse(&replyID));
380
381            Parcel* reply;
382            CHECK(msg->findPointer("reply", (void**)&reply));
383
384            size_t inbandTracks = 0;
385            if (mSource != NULL) {
386                inbandTracks = mSource->getTrackCount();
387            }
388
389            size_t ccTracks = 0;
390            if (mCCDecoder != NULL) {
391                ccTracks = mCCDecoder->getTrackCount();
392            }
393
394            // total track count
395            reply->writeInt32(inbandTracks + ccTracks);
396
397            // write inband tracks
398            for (size_t i = 0; i < inbandTracks; ++i) {
399                writeTrackInfo(reply, mSource->getTrackInfo(i));
400            }
401
402            // write CC track
403            for (size_t i = 0; i < ccTracks; ++i) {
404                writeTrackInfo(reply, mCCDecoder->getTrackInfo(i));
405            }
406
407            sp<AMessage> response = new AMessage;
408            response->postReply(replyID);
409            break;
410        }
411
412        case kWhatSelectTrack:
413        {
414            uint32_t replyID;
415            CHECK(msg->senderAwaitsResponse(&replyID));
416
417            size_t trackIndex;
418            int32_t select;
419            CHECK(msg->findSize("trackIndex", &trackIndex));
420            CHECK(msg->findInt32("select", &select));
421
422            status_t err = INVALID_OPERATION;
423
424            size_t inbandTracks = 0;
425            if (mSource != NULL) {
426                inbandTracks = mSource->getTrackCount();
427            }
428            size_t ccTracks = 0;
429            if (mCCDecoder != NULL) {
430                ccTracks = mCCDecoder->getTrackCount();
431            }
432
433            if (trackIndex < inbandTracks) {
434                err = mSource->selectTrack(trackIndex, select);
435
436                if (!select && err == OK) {
437                    int32_t type;
438                    sp<AMessage> info = mSource->getTrackInfo(trackIndex);
439                    if (info != NULL
440                            && info->findInt32("type", &type)
441                            && type == MEDIA_TRACK_TYPE_TIMEDTEXT) {
442                        ++mTimedTextGeneration;
443                    }
444                }
445            } else {
446                trackIndex -= inbandTracks;
447
448                if (trackIndex < ccTracks) {
449                    err = mCCDecoder->selectTrack(trackIndex, select);
450                }
451            }
452
453            sp<AMessage> response = new AMessage;
454            response->setInt32("err", err);
455
456            response->postReply(replyID);
457            break;
458        }
459
460        case kWhatPollDuration:
461        {
462            int32_t generation;
463            CHECK(msg->findInt32("generation", &generation));
464
465            if (generation != mPollDurationGeneration) {
466                // stale
467                break;
468            }
469
470            int64_t durationUs;
471            if (mDriver != NULL && mSource->getDuration(&durationUs) == OK) {
472                sp<NuPlayerDriver> driver = mDriver.promote();
473                if (driver != NULL) {
474                    driver->notifyDuration(durationUs);
475                }
476            }
477
478            msg->post(1000000ll);  // poll again in a second.
479            break;
480        }
481
482        case kWhatSetVideoNativeWindow:
483        {
484            ALOGV("kWhatSetVideoNativeWindow");
485
486            mDeferredActions.push_back(
487                    new ShutdownDecoderAction(
488                        false /* audio */, true /* video */));
489
490            sp<RefBase> obj;
491            CHECK(msg->findObject("native-window", &obj));
492
493            mDeferredActions.push_back(
494                    new SetSurfaceAction(
495                        static_cast<NativeWindowWrapper *>(obj.get())));
496
497            if (obj != NULL) {
498                // If there is a new surface texture, instantiate decoders
499                // again if possible.
500                mDeferredActions.push_back(
501                        new SimpleAction(&NuPlayer::performScanSources));
502            }
503
504            processDeferredActions();
505            break;
506        }
507
508        case kWhatSetAudioSink:
509        {
510            ALOGV("kWhatSetAudioSink");
511
512            sp<RefBase> obj;
513            CHECK(msg->findObject("sink", &obj));
514
515            mAudioSink = static_cast<MediaPlayerBase::AudioSink *>(obj.get());
516            break;
517        }
518
519        case kWhatStart:
520        {
521            ALOGV("kWhatStart");
522
523            mVideoIsAVC = false;
524            mOffloadAudio = false;
525            mAudioEOS = false;
526            mVideoEOS = false;
527            mSkipRenderingAudioUntilMediaTimeUs = -1;
528            mSkipRenderingVideoUntilMediaTimeUs = -1;
529            mVideoLateByUs = 0;
530            mNumFramesTotal = 0;
531            mNumFramesDropped = 0;
532            mStarted = true;
533
534            /* instantiate decoders now for secure playback */
535            if (mSourceFlags & Source::FLAG_SECURE) {
536                if (mNativeWindow != NULL) {
537                    instantiateDecoder(false, &mVideoDecoder);
538                }
539
540                if (mAudioSink != NULL) {
541                    instantiateDecoder(true, &mAudioDecoder);
542                }
543            }
544
545            mSource->start();
546
547            uint32_t flags = 0;
548
549            if (mSource->isRealTime()) {
550                flags |= Renderer::FLAG_REAL_TIME;
551            }
552
553            sp<MetaData> audioMeta = mSource->getFormatMeta(true /* audio */);
554            audio_stream_type_t streamType = AUDIO_STREAM_MUSIC;
555            if (mAudioSink != NULL) {
556                streamType = mAudioSink->getAudioStreamType();
557            }
558
559            sp<AMessage> videoFormat = mSource->getFormat(false /* audio */);
560
561            mOffloadAudio =
562                canOffloadStream(audioMeta, (videoFormat != NULL),
563                                 true /* is_streaming */, streamType);
564            if (mOffloadAudio) {
565                flags |= Renderer::FLAG_OFFLOAD_AUDIO;
566            }
567
568            mRenderer = new Renderer(
569                    mAudioSink,
570                    new AMessage(kWhatRendererNotify, id()),
571                    flags);
572
573            mRendererLooper = new ALooper;
574            mRendererLooper->setName("NuPlayerRenderer");
575            mRendererLooper->start(false, false, ANDROID_PRIORITY_AUDIO);
576            mRendererLooper->registerHandler(mRenderer);
577
578            postScanSources();
579            break;
580        }
581
582        case kWhatScanSources:
583        {
584            int32_t generation;
585            CHECK(msg->findInt32("generation", &generation));
586            if (generation != mScanSourcesGeneration) {
587                // Drop obsolete msg.
588                break;
589            }
590
591            mScanSourcesPending = false;
592
593            ALOGV("scanning sources haveAudio=%d, haveVideo=%d",
594                 mAudioDecoder != NULL, mVideoDecoder != NULL);
595
596            bool mHadAnySourcesBefore =
597                (mAudioDecoder != NULL) || (mVideoDecoder != NULL);
598
599            if (mNativeWindow != NULL) {
600                instantiateDecoder(false, &mVideoDecoder);
601            }
602
603            if (mAudioSink != NULL) {
604                instantiateDecoder(true, &mAudioDecoder);
605            }
606
607            if (!mHadAnySourcesBefore
608                    && (mAudioDecoder != NULL || mVideoDecoder != NULL)) {
609                // This is the first time we've found anything playable.
610
611                if (mSourceFlags & Source::FLAG_DYNAMIC_DURATION) {
612                    schedulePollDuration();
613                }
614            }
615
616            status_t err;
617            if ((err = mSource->feedMoreTSData()) != OK) {
618                if (mAudioDecoder == NULL && mVideoDecoder == NULL) {
619                    // We're not currently decoding anything (no audio or
620                    // video tracks found) and we just ran out of input data.
621
622                    if (err == ERROR_END_OF_STREAM) {
623                        notifyListener(MEDIA_PLAYBACK_COMPLETE, 0, 0);
624                    } else {
625                        notifyListener(MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, err);
626                    }
627                }
628                break;
629            }
630
631            if ((mAudioDecoder == NULL && mAudioSink != NULL)
632                    || (mVideoDecoder == NULL && mNativeWindow != NULL)) {
633                msg->post(100000ll);
634                mScanSourcesPending = true;
635            }
636            break;
637        }
638
639        case kWhatVideoNotify:
640        case kWhatAudioNotify:
641        {
642            bool audio = msg->what() == kWhatAudioNotify;
643
644            int32_t what;
645            CHECK(msg->findInt32("what", &what));
646
647            if (what == Decoder::kWhatFillThisBuffer) {
648                status_t err = feedDecoderInputData(
649                        audio, msg);
650
651                if (err == -EWOULDBLOCK) {
652                    if (mSource->feedMoreTSData() == OK) {
653                        msg->post(10000ll);
654                    }
655                }
656            } else if (what == Decoder::kWhatEOS) {
657                int32_t err;
658                CHECK(msg->findInt32("err", &err));
659
660                if (err == ERROR_END_OF_STREAM) {
661                    ALOGV("got %s decoder EOS", audio ? "audio" : "video");
662                } else {
663                    ALOGV("got %s decoder EOS w/ error %d",
664                         audio ? "audio" : "video",
665                         err);
666                }
667
668                mRenderer->queueEOS(audio, err);
669            } else if (what == Decoder::kWhatFlushCompleted) {
670                bool needShutdown;
671
672                if (audio) {
673                    CHECK(IsFlushingState(mFlushingAudio, &needShutdown));
674                    mFlushingAudio = FLUSHED;
675                } else {
676                    CHECK(IsFlushingState(mFlushingVideo, &needShutdown));
677                    mFlushingVideo = FLUSHED;
678
679                    mVideoLateByUs = 0;
680                }
681
682                ALOGV("decoder %s flush completed", audio ? "audio" : "video");
683
684                if (needShutdown) {
685                    ALOGV("initiating %s decoder shutdown",
686                         audio ? "audio" : "video");
687
688                    (audio ? mAudioDecoder : mVideoDecoder)->initiateShutdown();
689
690                    if (audio) {
691                        mFlushingAudio = SHUTTING_DOWN_DECODER;
692                    } else {
693                        mFlushingVideo = SHUTTING_DOWN_DECODER;
694                    }
695                }
696
697                finishFlushIfPossible();
698            } else if (what == Decoder::kWhatOutputFormatChanged) {
699                sp<AMessage> format;
700                CHECK(msg->findMessage("format", &format));
701
702                if (audio) {
703                    int32_t numChannels;
704                    CHECK(format->findInt32(
705                                "channel-count", &numChannels));
706
707                    int32_t sampleRate;
708                    CHECK(format->findInt32("sample-rate", &sampleRate));
709
710                    ALOGV("Audio output format changed to %d Hz, %d channels",
711                         sampleRate, numChannels);
712
713                    mAudioSink->close();
714
715                    uint32_t flags;
716                    int64_t durationUs;
717                    // FIXME: we should handle the case where the video decoder
718                    // is created after we receive the format change indication.
719                    // Current code will just make that we select deep buffer
720                    // with video which should not be a problem as it should
721                    // not prevent from keeping A/V sync.
722                    if (mVideoDecoder == NULL &&
723                            mSource->getDuration(&durationUs) == OK &&
724                            durationUs
725                                > AUDIO_SINK_MIN_DEEP_BUFFER_DURATION_US) {
726                        flags = AUDIO_OUTPUT_FLAG_DEEP_BUFFER;
727                    } else {
728                        flags = AUDIO_OUTPUT_FLAG_NONE;
729                    }
730
731                    int32_t channelMask;
732                    if (!format->findInt32("channel-mask", &channelMask)) {
733                        channelMask = CHANNEL_MASK_USE_CHANNEL_ORDER;
734                    }
735
736                    if (mOffloadAudio) {
737                        audio_format_t audioFormat = AUDIO_FORMAT_PCM_16_BIT;
738                        audio_offload_info_t offloadInfo =
739                                AUDIO_INFO_INITIALIZER;
740
741                        AString mime;
742                        CHECK(format->findString("mime", &mime));
743
744                        status_t err =
745                            mapMimeToAudioFormat(audioFormat, mime.c_str());
746                        if (err != OK) {
747                            ALOGE("Couldn't map mime \"%s\" to a valid "
748                                    "audio_format", mime.c_str());
749                            mOffloadAudio = false;
750                        } else {
751                            ALOGV("Mime \"%s\" mapped to audio_format 0x%x",
752                                    mime.c_str(), audioFormat);
753
754                            int32_t aacProfile = -1;
755                            if (audioFormat == AUDIO_FORMAT_AAC
756                                    && format->findInt32("aac-profile", &aacProfile)) {
757                                // Redefine AAC format as per aac profile
758                                mapAACProfileToAudioFormat(
759                                        audioFormat,
760                                        aacProfile);
761                            }
762
763                            flags |= AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD;
764
765                            offloadInfo.duration_us = -1;
766                            format->findInt64(
767                                    "durationUs", &offloadInfo.duration_us);
768
769                            int avgBitRate = -1;
770                            format->findInt32("bit-rate", &avgBitRate);
771
772                            offloadInfo.sample_rate = sampleRate;
773                            offloadInfo.channel_mask = channelMask;
774                            offloadInfo.format = audioFormat;
775                            offloadInfo.stream_type = AUDIO_STREAM_MUSIC;
776                            offloadInfo.bit_rate = avgBitRate;
777                            offloadInfo.has_video = (mVideoDecoder != NULL);
778                            offloadInfo.is_streaming = true;
779
780                            ALOGV("try to open AudioSink in offload mode");
781                            err = mAudioSink->open(
782                                    sampleRate,
783                                    numChannels,
784                                    (audio_channel_mask_t)channelMask,
785                                    audioFormat,
786                                    8 /* bufferCount */,
787                                    &NuPlayer::Renderer::AudioSinkCallback,
788                                    mRenderer.get(),
789                                    (audio_output_flags_t)flags,
790                                    &offloadInfo);
791
792                            if (err == OK) {
793                                // If the playback is offloaded to h/w, we pass
794                                // the HAL some metadata information.
795                                // We don't want to do this for PCM because it
796                                // will be going through the AudioFlinger mixer
797                                // before reaching the hardware.
798                                sp<MetaData> audioMeta =
799                                    mSource->getFormatMeta(true /* audio */);
800                                sendMetaDataToHal(mAudioSink, audioMeta);
801
802                                err = mAudioSink->start();
803                            }
804                        }
805
806                        if (err != OK) {
807                            // Clean up, fall back to non offload mode.
808                            mAudioSink->close();
809                            mAudioDecoder.clear();
810                            mRenderer->signalDisableOffloadAudio();
811                            mOffloadAudio = false;
812
813                            instantiateDecoder(
814                                    true /* audio */, &mAudioDecoder);
815                        }
816                    }
817
818                    if (!mOffloadAudio) {
819                        flags &= ~AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD;
820                        ALOGV("open AudioSink in NON-offload mode");
821                        CHECK_EQ(mAudioSink->open(
822                                    sampleRate,
823                                    numChannels,
824                                    (audio_channel_mask_t)channelMask,
825                                    AUDIO_FORMAT_PCM_16_BIT,
826                                    8 /* bufferCount */,
827                                    NULL,
828                                    NULL,
829                                    (audio_output_flags_t)flags),
830                                 (status_t)OK);
831                        mAudioSink->start();
832                    }
833
834                    mRenderer->signalAudioSinkChanged();
835                } else {
836                    // video
837
838                    int32_t width, height;
839                    CHECK(format->findInt32("width", &width));
840                    CHECK(format->findInt32("height", &height));
841
842                    int32_t cropLeft, cropTop, cropRight, cropBottom;
843                    CHECK(format->findRect(
844                                "crop",
845                                &cropLeft, &cropTop, &cropRight, &cropBottom));
846
847                    int32_t displayWidth = cropRight - cropLeft + 1;
848                    int32_t displayHeight = cropBottom - cropTop + 1;
849
850                    ALOGV("Video output format changed to %d x %d "
851                         "(crop: %d x %d @ (%d, %d))",
852                         width, height,
853                         displayWidth,
854                         displayHeight,
855                         cropLeft, cropTop);
856
857                    sp<AMessage> videoInputFormat =
858                        mSource->getFormat(false /* audio */);
859
860                    // Take into account sample aspect ratio if necessary:
861                    int32_t sarWidth, sarHeight;
862                    if (videoInputFormat->findInt32("sar-width", &sarWidth)
863                            && videoInputFormat->findInt32(
864                                "sar-height", &sarHeight)) {
865                        ALOGV("Sample aspect ratio %d : %d",
866                              sarWidth, sarHeight);
867
868                        displayWidth = (displayWidth * sarWidth) / sarHeight;
869
870                        ALOGV("display dimensions %d x %d",
871                              displayWidth, displayHeight);
872                    }
873
874                    int32_t rotationDegrees;
875                    if (!videoInputFormat->findInt32(
876                            "rotation-degrees", &rotationDegrees)) {
877                        rotationDegrees = 0;
878                    }
879
880                    if (rotationDegrees == 90 || rotationDegrees == 270) {
881                        notifyListener(
882                                MEDIA_SET_VIDEO_SIZE,
883                                displayHeight,
884                                displayWidth);
885                    } else {
886                        notifyListener(
887                                MEDIA_SET_VIDEO_SIZE,
888                                displayWidth,
889                                displayHeight);
890                    }
891                }
892            } else if (what == Decoder::kWhatShutdownCompleted) {
893                ALOGV("%s shutdown completed", audio ? "audio" : "video");
894                if (audio) {
895                    mAudioDecoder.clear();
896
897                    CHECK_EQ((int)mFlushingAudio, (int)SHUTTING_DOWN_DECODER);
898                    mFlushingAudio = SHUT_DOWN;
899                } else {
900                    mVideoDecoder.clear();
901
902                    CHECK_EQ((int)mFlushingVideo, (int)SHUTTING_DOWN_DECODER);
903                    mFlushingVideo = SHUT_DOWN;
904                }
905
906                finishFlushIfPossible();
907            } else if (what == Decoder::kWhatError) {
908                ALOGE("Received error from %s decoder, aborting playback.",
909                     audio ? "audio" : "video");
910
911                mRenderer->queueEOS(audio, UNKNOWN_ERROR);
912            } else if (what == Decoder::kWhatDrainThisBuffer) {
913                renderBuffer(audio, msg);
914            } else {
915                ALOGV("Unhandled decoder notification %d '%c%c%c%c'.",
916                      what,
917                      what >> 24,
918                      (what >> 16) & 0xff,
919                      (what >> 8) & 0xff,
920                      what & 0xff);
921            }
922
923            break;
924        }
925
926        case kWhatRendererNotify:
927        {
928            int32_t what;
929            CHECK(msg->findInt32("what", &what));
930
931            if (what == Renderer::kWhatEOS) {
932                int32_t audio;
933                CHECK(msg->findInt32("audio", &audio));
934
935                int32_t finalResult;
936                CHECK(msg->findInt32("finalResult", &finalResult));
937
938                if (audio) {
939                    mAudioEOS = true;
940                } else {
941                    mVideoEOS = true;
942                }
943
944                if (finalResult == ERROR_END_OF_STREAM) {
945                    ALOGV("reached %s EOS", audio ? "audio" : "video");
946                } else {
947                    ALOGE("%s track encountered an error (%d)",
948                         audio ? "audio" : "video", finalResult);
949
950                    notifyListener(
951                            MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, finalResult);
952                }
953
954                if ((mAudioEOS || mAudioDecoder == NULL)
955                        && (mVideoEOS || mVideoDecoder == NULL)) {
956                    notifyListener(MEDIA_PLAYBACK_COMPLETE, 0, 0);
957                }
958            } else if (what == Renderer::kWhatPosition) {
959                int64_t positionUs;
960                CHECK(msg->findInt64("positionUs", &positionUs));
961
962                CHECK(msg->findInt64("videoLateByUs", &mVideoLateByUs));
963
964                if (mDriver != NULL) {
965                    sp<NuPlayerDriver> driver = mDriver.promote();
966                    if (driver != NULL) {
967                        driver->notifyPosition(positionUs);
968
969                        driver->notifyFrameStats(
970                                mNumFramesTotal, mNumFramesDropped);
971                    }
972                }
973            } else if (what == Renderer::kWhatFlushComplete) {
974                int32_t audio;
975                CHECK(msg->findInt32("audio", &audio));
976
977                ALOGV("renderer %s flush completed.", audio ? "audio" : "video");
978            } else if (what == Renderer::kWhatVideoRenderingStart) {
979                notifyListener(MEDIA_INFO, MEDIA_INFO_RENDERING_START, 0);
980            } else if (what == Renderer::kWhatMediaRenderingStart) {
981                ALOGV("media rendering started");
982                notifyListener(MEDIA_STARTED, 0, 0);
983            } else if (what == Renderer::kWhatAudioOffloadTearDown) {
984                ALOGV("Tear down audio offload, fall back to s/w path");
985                int64_t positionUs;
986                CHECK(msg->findInt64("positionUs", &positionUs));
987                mAudioSink->close();
988                mAudioDecoder.clear();
989                mRenderer->flush(true /* audio */);
990                if (mVideoDecoder != NULL) {
991                    mRenderer->flush(false /* audio */);
992                }
993                mRenderer->signalDisableOffloadAudio();
994                mOffloadAudio = false;
995
996                performSeek(positionUs);
997                instantiateDecoder(true /* audio */, &mAudioDecoder);
998            }
999            break;
1000        }
1001
1002        case kWhatMoreDataQueued:
1003        {
1004            break;
1005        }
1006
1007        case kWhatReset:
1008        {
1009            ALOGV("kWhatReset");
1010
1011            mDeferredActions.push_back(
1012                    new ShutdownDecoderAction(
1013                        true /* audio */, true /* video */));
1014
1015            mDeferredActions.push_back(
1016                    new SimpleAction(&NuPlayer::performReset));
1017
1018            processDeferredActions();
1019            break;
1020        }
1021
1022        case kWhatSeek:
1023        {
1024            int64_t seekTimeUs;
1025            CHECK(msg->findInt64("seekTimeUs", &seekTimeUs));
1026
1027            ALOGV("kWhatSeek seekTimeUs=%lld us", seekTimeUs);
1028
1029            mDeferredActions.push_back(
1030                    new SimpleAction(&NuPlayer::performDecoderFlush));
1031
1032            mDeferredActions.push_back(new SeekAction(seekTimeUs));
1033
1034            processDeferredActions();
1035            break;
1036        }
1037
1038        case kWhatPause:
1039        {
1040            CHECK(mRenderer != NULL);
1041            mSource->pause();
1042            mRenderer->pause();
1043            break;
1044        }
1045
1046        case kWhatResume:
1047        {
1048            CHECK(mRenderer != NULL);
1049            mSource->resume();
1050            mRenderer->resume();
1051            break;
1052        }
1053
1054        case kWhatSourceNotify:
1055        {
1056            onSourceNotify(msg);
1057            break;
1058        }
1059
1060        case kWhatClosedCaptionNotify:
1061        {
1062            onClosedCaptionNotify(msg);
1063            break;
1064        }
1065
1066        default:
1067            TRESPASS();
1068            break;
1069    }
1070}
1071
1072void NuPlayer::finishFlushIfPossible() {
1073    if (mFlushingAudio != FLUSHED && mFlushingAudio != SHUT_DOWN) {
1074        return;
1075    }
1076
1077    if (mFlushingVideo != FLUSHED && mFlushingVideo != SHUT_DOWN) {
1078        return;
1079    }
1080
1081    ALOGV("both audio and video are flushed now.");
1082
1083    if (mTimeDiscontinuityPending) {
1084        mRenderer->signalTimeDiscontinuity();
1085        mTimeDiscontinuityPending = false;
1086    }
1087
1088    if (mAudioDecoder != NULL) {
1089        mAudioDecoder->signalResume();
1090    }
1091
1092    if (mVideoDecoder != NULL) {
1093        mVideoDecoder->signalResume();
1094    }
1095
1096    mFlushingAudio = NONE;
1097    mFlushingVideo = NONE;
1098
1099    processDeferredActions();
1100}
1101
1102void NuPlayer::postScanSources() {
1103    if (mScanSourcesPending) {
1104        return;
1105    }
1106
1107    sp<AMessage> msg = new AMessage(kWhatScanSources, id());
1108    msg->setInt32("generation", mScanSourcesGeneration);
1109    msg->post();
1110
1111    mScanSourcesPending = true;
1112}
1113
1114status_t NuPlayer::instantiateDecoder(bool audio, sp<Decoder> *decoder) {
1115    if (*decoder != NULL) {
1116        return OK;
1117    }
1118
1119    sp<AMessage> format = mSource->getFormat(audio);
1120
1121    if (format == NULL) {
1122        return -EWOULDBLOCK;
1123    }
1124
1125    if (!audio) {
1126        AString mime;
1127        CHECK(format->findString("mime", &mime));
1128        mVideoIsAVC = !strcasecmp(MEDIA_MIMETYPE_VIDEO_AVC, mime.c_str());
1129
1130        sp<AMessage> ccNotify = new AMessage(kWhatClosedCaptionNotify, id());
1131        mCCDecoder = new CCDecoder(ccNotify);
1132
1133        if (mSourceFlags & Source::FLAG_SECURE) {
1134            format->setInt32("secure", true);
1135        }
1136    }
1137
1138    sp<AMessage> notify =
1139        new AMessage(audio ? kWhatAudioNotify : kWhatVideoNotify,
1140                     id());
1141
1142    if (audio) {
1143        if (mOffloadAudio) {
1144            *decoder = new DecoderPassThrough(notify);
1145        } else {
1146            *decoder = new Decoder(notify);
1147        }
1148    } else {
1149        *decoder = new Decoder(notify, mNativeWindow);
1150    }
1151    (*decoder)->init();
1152    (*decoder)->configure(format);
1153
1154    // allocate buffers to decrypt widevine source buffers
1155    if (!audio && (mSourceFlags & Source::FLAG_SECURE)) {
1156        Vector<sp<ABuffer> > inputBufs;
1157        CHECK_EQ((*decoder)->getInputBuffers(&inputBufs), (status_t)OK);
1158
1159        Vector<MediaBuffer *> mediaBufs;
1160        for (size_t i = 0; i < inputBufs.size(); i++) {
1161            const sp<ABuffer> &buffer = inputBufs[i];
1162            MediaBuffer *mbuf = new MediaBuffer(buffer->data(), buffer->size());
1163            mediaBufs.push(mbuf);
1164        }
1165
1166        status_t err = mSource->setBuffers(audio, mediaBufs);
1167        if (err != OK) {
1168            for (size_t i = 0; i < mediaBufs.size(); ++i) {
1169                mediaBufs[i]->release();
1170            }
1171            mediaBufs.clear();
1172            ALOGE("Secure source didn't support secure mediaBufs.");
1173            return err;
1174        }
1175    }
1176    return OK;
1177}
1178
1179status_t NuPlayer::feedDecoderInputData(bool audio, const sp<AMessage> &msg) {
1180    sp<AMessage> reply;
1181    CHECK(msg->findMessage("reply", &reply));
1182
1183    if ((audio && mFlushingAudio != NONE
1184                && mFlushingAudio != AWAITING_DISCONTINUITY)
1185            || (!audio && mFlushingVideo != NONE
1186                       && mFlushingVideo != AWAITING_DISCONTINUITY)) {
1187        return -EWOULDBLOCK;
1188    }
1189
1190    sp<ABuffer> accessUnit;
1191
1192    bool dropAccessUnit;
1193    do {
1194        status_t err = mSource->dequeueAccessUnit(audio, &accessUnit);
1195
1196        if (err == -EWOULDBLOCK) {
1197            return err;
1198        } else if (err != OK) {
1199            if (err == INFO_DISCONTINUITY) {
1200                int32_t type;
1201                CHECK(accessUnit->meta()->findInt32("discontinuity", &type));
1202
1203                bool formatChange =
1204                    (audio &&
1205                     (type & ATSParser::DISCONTINUITY_AUDIO_FORMAT))
1206                    || (!audio &&
1207                            (type & ATSParser::DISCONTINUITY_VIDEO_FORMAT));
1208
1209                bool timeChange = (type & ATSParser::DISCONTINUITY_TIME) != 0;
1210
1211                ALOGI("%s discontinuity (formatChange=%d, time=%d)",
1212                     audio ? "audio" : "video", formatChange, timeChange);
1213
1214                if (audio) {
1215                    mSkipRenderingAudioUntilMediaTimeUs = -1;
1216                } else {
1217                    mSkipRenderingVideoUntilMediaTimeUs = -1;
1218                }
1219
1220                if (timeChange) {
1221                    sp<AMessage> extra;
1222                    if (accessUnit->meta()->findMessage("extra", &extra)
1223                            && extra != NULL) {
1224                        int64_t resumeAtMediaTimeUs;
1225                        if (extra->findInt64(
1226                                    "resume-at-mediatimeUs", &resumeAtMediaTimeUs)) {
1227                            ALOGI("suppressing rendering of %s until %lld us",
1228                                    audio ? "audio" : "video", resumeAtMediaTimeUs);
1229
1230                            if (audio) {
1231                                mSkipRenderingAudioUntilMediaTimeUs =
1232                                    resumeAtMediaTimeUs;
1233                            } else {
1234                                mSkipRenderingVideoUntilMediaTimeUs =
1235                                    resumeAtMediaTimeUs;
1236                            }
1237                        }
1238                    }
1239                }
1240
1241                mTimeDiscontinuityPending =
1242                    mTimeDiscontinuityPending || timeChange;
1243
1244                if (mFlushingAudio == NONE && mFlushingVideo == NONE) {
1245                    // And we'll resume scanning sources once we're done
1246                    // flushing.
1247                    mDeferredActions.push_front(
1248                            new SimpleAction(
1249                                &NuPlayer::performScanSources));
1250                }
1251
1252                if (formatChange || timeChange) {
1253
1254                    sp<AMessage> newFormat = mSource->getFormat(audio);
1255                    sp<Decoder> &decoder = audio ? mAudioDecoder : mVideoDecoder;
1256                    if (formatChange && !decoder->supportsSeamlessFormatChange(newFormat)) {
1257                        flushDecoder(audio, /* needShutdown = */ true);
1258                    } else {
1259                        flushDecoder(audio, /* needShutdown = */ false);
1260                        err = OK;
1261                    }
1262                } else {
1263                    // This stream is unaffected by the discontinuity
1264
1265                    if (audio) {
1266                        mFlushingAudio = FLUSHED;
1267                    } else {
1268                        mFlushingVideo = FLUSHED;
1269                    }
1270
1271                    finishFlushIfPossible();
1272
1273                    return -EWOULDBLOCK;
1274                }
1275            }
1276
1277            reply->setInt32("err", err);
1278            reply->post();
1279            return OK;
1280        }
1281
1282        if (!audio) {
1283            ++mNumFramesTotal;
1284        }
1285
1286        dropAccessUnit = false;
1287        if (!audio
1288                && !(mSourceFlags & Source::FLAG_SECURE)
1289                && mVideoLateByUs > 100000ll
1290                && mVideoIsAVC
1291                && !IsAVCReferenceFrame(accessUnit)) {
1292            dropAccessUnit = true;
1293            ++mNumFramesDropped;
1294        }
1295    } while (dropAccessUnit);
1296
1297    // ALOGV("returned a valid buffer of %s data", audio ? "audio" : "video");
1298
1299#if 0
1300    int64_t mediaTimeUs;
1301    CHECK(accessUnit->meta()->findInt64("timeUs", &mediaTimeUs));
1302    ALOGV("feeding %s input buffer at media time %.2f secs",
1303         audio ? "audio" : "video",
1304         mediaTimeUs / 1E6);
1305#endif
1306
1307    if (!audio) {
1308        mCCDecoder->decode(accessUnit);
1309    }
1310
1311    reply->setBuffer("buffer", accessUnit);
1312    reply->post();
1313
1314    return OK;
1315}
1316
1317void NuPlayer::renderBuffer(bool audio, const sp<AMessage> &msg) {
1318    // ALOGV("renderBuffer %s", audio ? "audio" : "video");
1319
1320    sp<AMessage> reply;
1321    CHECK(msg->findMessage("reply", &reply));
1322
1323    if (IsFlushingState(audio ? mFlushingAudio : mFlushingVideo)) {
1324        // We're currently attempting to flush the decoder, in order
1325        // to complete this, the decoder wants all its buffers back,
1326        // so we don't want any output buffers it sent us (from before
1327        // we initiated the flush) to be stuck in the renderer's queue.
1328
1329        ALOGV("we're still flushing the %s decoder, sending its output buffer"
1330             " right back.", audio ? "audio" : "video");
1331
1332        reply->post();
1333        return;
1334    }
1335
1336    sp<ABuffer> buffer;
1337    CHECK(msg->findBuffer("buffer", &buffer));
1338
1339    int64_t mediaTimeUs;
1340    CHECK(buffer->meta()->findInt64("timeUs", &mediaTimeUs));
1341
1342    int64_t &skipUntilMediaTimeUs =
1343        audio
1344            ? mSkipRenderingAudioUntilMediaTimeUs
1345            : mSkipRenderingVideoUntilMediaTimeUs;
1346
1347    if (skipUntilMediaTimeUs >= 0) {
1348
1349        if (mediaTimeUs < skipUntilMediaTimeUs) {
1350            ALOGV("dropping %s buffer at time %lld as requested.",
1351                 audio ? "audio" : "video",
1352                 mediaTimeUs);
1353
1354            reply->post();
1355            return;
1356        }
1357
1358        skipUntilMediaTimeUs = -1;
1359    }
1360
1361    if (!audio && mCCDecoder->isSelected()) {
1362        mCCDecoder->display(mediaTimeUs);
1363    }
1364
1365    mRenderer->queueBuffer(audio, buffer, reply);
1366}
1367
1368void NuPlayer::notifyListener(int msg, int ext1, int ext2, const Parcel *in) {
1369    if (mDriver == NULL) {
1370        return;
1371    }
1372
1373    sp<NuPlayerDriver> driver = mDriver.promote();
1374
1375    if (driver == NULL) {
1376        return;
1377    }
1378
1379    driver->notifyListener(msg, ext1, ext2, in);
1380}
1381
1382void NuPlayer::flushDecoder(bool audio, bool needShutdown) {
1383    ALOGV("[%s] flushDecoder needShutdown=%d",
1384          audio ? "audio" : "video", needShutdown);
1385
1386    if ((audio && mAudioDecoder == NULL) || (!audio && mVideoDecoder == NULL)) {
1387        ALOGI("flushDecoder %s without decoder present",
1388             audio ? "audio" : "video");
1389    }
1390
1391    // Make sure we don't continue to scan sources until we finish flushing.
1392    ++mScanSourcesGeneration;
1393    mScanSourcesPending = false;
1394
1395    (audio ? mAudioDecoder : mVideoDecoder)->signalFlush();
1396    mRenderer->flush(audio);
1397
1398    FlushStatus newStatus =
1399        needShutdown ? FLUSHING_DECODER_SHUTDOWN : FLUSHING_DECODER;
1400
1401    if (audio) {
1402        CHECK(mFlushingAudio == NONE
1403                || mFlushingAudio == AWAITING_DISCONTINUITY);
1404
1405        mFlushingAudio = newStatus;
1406
1407        if (mFlushingVideo == NONE) {
1408            mFlushingVideo = (mVideoDecoder != NULL)
1409                ? AWAITING_DISCONTINUITY
1410                : FLUSHED;
1411        }
1412    } else {
1413        CHECK(mFlushingVideo == NONE
1414                || mFlushingVideo == AWAITING_DISCONTINUITY);
1415
1416        mFlushingVideo = newStatus;
1417
1418        if (mFlushingAudio == NONE) {
1419            mFlushingAudio = (mAudioDecoder != NULL)
1420                ? AWAITING_DISCONTINUITY
1421                : FLUSHED;
1422        }
1423    }
1424}
1425
1426sp<AMessage> NuPlayer::Source::getFormat(bool audio) {
1427    sp<MetaData> meta = getFormatMeta(audio);
1428
1429    if (meta == NULL) {
1430        return NULL;
1431    }
1432
1433    sp<AMessage> msg = new AMessage;
1434
1435    if(convertMetaDataToMessage(meta, &msg) == OK) {
1436        return msg;
1437    }
1438    return NULL;
1439}
1440
1441status_t NuPlayer::setVideoScalingMode(int32_t mode) {
1442    mVideoScalingMode = mode;
1443    if (mNativeWindow != NULL) {
1444        status_t ret = native_window_set_scaling_mode(
1445                mNativeWindow->getNativeWindow().get(), mVideoScalingMode);
1446        if (ret != OK) {
1447            ALOGE("Failed to set scaling mode (%d): %s",
1448                -ret, strerror(-ret));
1449            return ret;
1450        }
1451    }
1452    return OK;
1453}
1454
1455status_t NuPlayer::getTrackInfo(Parcel* reply) const {
1456    sp<AMessage> msg = new AMessage(kWhatGetTrackInfo, id());
1457    msg->setPointer("reply", reply);
1458
1459    sp<AMessage> response;
1460    status_t err = msg->postAndAwaitResponse(&response);
1461    return err;
1462}
1463
1464status_t NuPlayer::selectTrack(size_t trackIndex, bool select) {
1465    sp<AMessage> msg = new AMessage(kWhatSelectTrack, id());
1466    msg->setSize("trackIndex", trackIndex);
1467    msg->setInt32("select", select);
1468
1469    sp<AMessage> response;
1470    status_t err = msg->postAndAwaitResponse(&response);
1471
1472    if (err != OK) {
1473        return err;
1474    }
1475
1476    if (!response->findInt32("err", &err)) {
1477        err = OK;
1478    }
1479
1480    return err;
1481}
1482
1483void NuPlayer::schedulePollDuration() {
1484    sp<AMessage> msg = new AMessage(kWhatPollDuration, id());
1485    msg->setInt32("generation", mPollDurationGeneration);
1486    msg->post();
1487}
1488
1489void NuPlayer::cancelPollDuration() {
1490    ++mPollDurationGeneration;
1491}
1492
1493void NuPlayer::processDeferredActions() {
1494    while (!mDeferredActions.empty()) {
1495        // We won't execute any deferred actions until we're no longer in
1496        // an intermediate state, i.e. one more more decoders are currently
1497        // flushing or shutting down.
1498
1499        if (mRenderer != NULL) {
1500            // There's an edge case where the renderer owns all output
1501            // buffers and is paused, therefore the decoder will not read
1502            // more input data and will never encounter the matching
1503            // discontinuity. To avoid this, we resume the renderer.
1504
1505            if (mFlushingAudio == AWAITING_DISCONTINUITY
1506                    || mFlushingVideo == AWAITING_DISCONTINUITY) {
1507                mRenderer->resume();
1508            }
1509        }
1510
1511        if (mFlushingAudio != NONE || mFlushingVideo != NONE) {
1512            // We're currently flushing, postpone the reset until that's
1513            // completed.
1514
1515            ALOGV("postponing action mFlushingAudio=%d, mFlushingVideo=%d",
1516                  mFlushingAudio, mFlushingVideo);
1517
1518            break;
1519        }
1520
1521        sp<Action> action = *mDeferredActions.begin();
1522        mDeferredActions.erase(mDeferredActions.begin());
1523
1524        action->execute(this);
1525    }
1526}
1527
1528void NuPlayer::performSeek(int64_t seekTimeUs) {
1529    ALOGV("performSeek seekTimeUs=%lld us (%.2f secs)",
1530          seekTimeUs,
1531          seekTimeUs / 1E6);
1532
1533    mSource->seekTo(seekTimeUs);
1534    ++mTimedTextGeneration;
1535
1536    if (mDriver != NULL) {
1537        sp<NuPlayerDriver> driver = mDriver.promote();
1538        if (driver != NULL) {
1539            driver->notifyPosition(seekTimeUs);
1540            driver->notifySeekComplete();
1541        }
1542    }
1543
1544    // everything's flushed, continue playback.
1545}
1546
1547void NuPlayer::performDecoderFlush() {
1548    ALOGV("performDecoderFlush");
1549
1550    if (mAudioDecoder == NULL && mVideoDecoder == NULL) {
1551        return;
1552    }
1553
1554    mTimeDiscontinuityPending = true;
1555
1556    if (mAudioDecoder != NULL) {
1557        flushDecoder(true /* audio */, false /* needShutdown */);
1558    }
1559
1560    if (mVideoDecoder != NULL) {
1561        flushDecoder(false /* audio */, false /* needShutdown */);
1562    }
1563}
1564
1565void NuPlayer::performDecoderShutdown(bool audio, bool video) {
1566    ALOGV("performDecoderShutdown audio=%d, video=%d", audio, video);
1567
1568    if ((!audio || mAudioDecoder == NULL)
1569            && (!video || mVideoDecoder == NULL)) {
1570        return;
1571    }
1572
1573    mTimeDiscontinuityPending = true;
1574
1575    if (mFlushingAudio == NONE && (!audio || mAudioDecoder == NULL)) {
1576        mFlushingAudio = FLUSHED;
1577    }
1578
1579    if (mFlushingVideo == NONE && (!video || mVideoDecoder == NULL)) {
1580        mFlushingVideo = FLUSHED;
1581    }
1582
1583    if (audio && mAudioDecoder != NULL) {
1584        flushDecoder(true /* audio */, true /* needShutdown */);
1585    }
1586
1587    if (video && mVideoDecoder != NULL) {
1588        flushDecoder(false /* audio */, true /* needShutdown */);
1589    }
1590}
1591
1592void NuPlayer::performReset() {
1593    ALOGV("performReset");
1594
1595    CHECK(mAudioDecoder == NULL);
1596    CHECK(mVideoDecoder == NULL);
1597
1598    cancelPollDuration();
1599
1600    ++mScanSourcesGeneration;
1601    mScanSourcesPending = false;
1602
1603    if (mRendererLooper != NULL) {
1604        if (mRenderer != NULL) {
1605            mRendererLooper->unregisterHandler(mRenderer->id());
1606        }
1607        mRendererLooper->stop();
1608        mRendererLooper.clear();
1609    }
1610    mRenderer.clear();
1611
1612    if (mSource != NULL) {
1613        mSource->stop();
1614
1615        looper()->unregisterHandler(mSource->id());
1616
1617        mSource.clear();
1618    }
1619
1620    if (mDriver != NULL) {
1621        sp<NuPlayerDriver> driver = mDriver.promote();
1622        if (driver != NULL) {
1623            driver->notifyResetComplete();
1624        }
1625    }
1626
1627    mStarted = false;
1628}
1629
1630void NuPlayer::performScanSources() {
1631    ALOGV("performScanSources");
1632
1633    if (!mStarted) {
1634        return;
1635    }
1636
1637    if (mAudioDecoder == NULL || mVideoDecoder == NULL) {
1638        postScanSources();
1639    }
1640}
1641
1642void NuPlayer::performSetSurface(const sp<NativeWindowWrapper> &wrapper) {
1643    ALOGV("performSetSurface");
1644
1645    mNativeWindow = wrapper;
1646
1647    // XXX - ignore error from setVideoScalingMode for now
1648    setVideoScalingMode(mVideoScalingMode);
1649
1650    if (mDriver != NULL) {
1651        sp<NuPlayerDriver> driver = mDriver.promote();
1652        if (driver != NULL) {
1653            driver->notifySetSurfaceComplete();
1654        }
1655    }
1656}
1657
1658void NuPlayer::onSourceNotify(const sp<AMessage> &msg) {
1659    int32_t what;
1660    CHECK(msg->findInt32("what", &what));
1661
1662    switch (what) {
1663        case Source::kWhatPrepared:
1664        {
1665            if (mSource == NULL) {
1666                // This is a stale notification from a source that was
1667                // asynchronously preparing when the client called reset().
1668                // We handled the reset, the source is gone.
1669                break;
1670            }
1671
1672            int32_t err;
1673            CHECK(msg->findInt32("err", &err));
1674
1675            sp<NuPlayerDriver> driver = mDriver.promote();
1676            if (driver != NULL) {
1677                // notify duration first, so that it's definitely set when
1678                // the app received the "prepare complete" callback.
1679                int64_t durationUs;
1680                if (mSource->getDuration(&durationUs) == OK) {
1681                    driver->notifyDuration(durationUs);
1682                }
1683                driver->notifyPrepareCompleted(err);
1684            }
1685
1686            break;
1687        }
1688
1689        case Source::kWhatFlagsChanged:
1690        {
1691            uint32_t flags;
1692            CHECK(msg->findInt32("flags", (int32_t *)&flags));
1693
1694            sp<NuPlayerDriver> driver = mDriver.promote();
1695            if (driver != NULL) {
1696                driver->notifyFlagsChanged(flags);
1697            }
1698
1699            if ((mSourceFlags & Source::FLAG_DYNAMIC_DURATION)
1700                    && (!(flags & Source::FLAG_DYNAMIC_DURATION))) {
1701                cancelPollDuration();
1702            } else if (!(mSourceFlags & Source::FLAG_DYNAMIC_DURATION)
1703                    && (flags & Source::FLAG_DYNAMIC_DURATION)
1704                    && (mAudioDecoder != NULL || mVideoDecoder != NULL)) {
1705                schedulePollDuration();
1706            }
1707
1708            mSourceFlags = flags;
1709            break;
1710        }
1711
1712        case Source::kWhatVideoSizeChanged:
1713        {
1714            int32_t width, height;
1715            CHECK(msg->findInt32("width", &width));
1716            CHECK(msg->findInt32("height", &height));
1717
1718            notifyListener(MEDIA_SET_VIDEO_SIZE, width, height);
1719            break;
1720        }
1721
1722        case Source::kWhatBufferingStart:
1723        {
1724            notifyListener(MEDIA_INFO, MEDIA_INFO_BUFFERING_START, 0);
1725            break;
1726        }
1727
1728        case Source::kWhatBufferingEnd:
1729        {
1730            notifyListener(MEDIA_INFO, MEDIA_INFO_BUFFERING_END, 0);
1731            break;
1732        }
1733
1734        case Source::kWhatSubtitleData:
1735        {
1736            sp<ABuffer> buffer;
1737            CHECK(msg->findBuffer("buffer", &buffer));
1738
1739            sendSubtitleData(buffer, 0 /* baseIndex */);
1740            break;
1741        }
1742
1743        case Source::kWhatTimedTextData:
1744        {
1745            int32_t generation;
1746            if (msg->findInt32("generation", &generation)
1747                    && generation != mTimedTextGeneration) {
1748                break;
1749            }
1750
1751            sp<ABuffer> buffer;
1752            CHECK(msg->findBuffer("buffer", &buffer));
1753
1754            sp<NuPlayerDriver> driver = mDriver.promote();
1755            if (driver == NULL) {
1756                break;
1757            }
1758
1759            int posMs;
1760            int64_t timeUs, posUs;
1761            driver->getCurrentPosition(&posMs);
1762            posUs = posMs * 1000;
1763            CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
1764
1765            if (posUs < timeUs) {
1766                if (!msg->findInt32("generation", &generation)) {
1767                    msg->setInt32("generation", mTimedTextGeneration);
1768                }
1769                msg->post(timeUs - posUs);
1770            } else {
1771                sendTimedTextData(buffer);
1772            }
1773            break;
1774        }
1775
1776        case Source::kWhatQueueDecoderShutdown:
1777        {
1778            int32_t audio, video;
1779            CHECK(msg->findInt32("audio", &audio));
1780            CHECK(msg->findInt32("video", &video));
1781
1782            sp<AMessage> reply;
1783            CHECK(msg->findMessage("reply", &reply));
1784
1785            queueDecoderShutdown(audio, video, reply);
1786            break;
1787        }
1788
1789        default:
1790            TRESPASS();
1791    }
1792}
1793
1794void NuPlayer::onClosedCaptionNotify(const sp<AMessage> &msg) {
1795    int32_t what;
1796    CHECK(msg->findInt32("what", &what));
1797
1798    switch (what) {
1799        case NuPlayer::CCDecoder::kWhatClosedCaptionData:
1800        {
1801            sp<ABuffer> buffer;
1802            CHECK(msg->findBuffer("buffer", &buffer));
1803
1804            size_t inbandTracks = 0;
1805            if (mSource != NULL) {
1806                inbandTracks = mSource->getTrackCount();
1807            }
1808
1809            sendSubtitleData(buffer, inbandTracks);
1810            break;
1811        }
1812
1813        case NuPlayer::CCDecoder::kWhatTrackAdded:
1814        {
1815            notifyListener(MEDIA_INFO, MEDIA_INFO_METADATA_UPDATE, 0);
1816
1817            break;
1818        }
1819
1820        default:
1821            TRESPASS();
1822    }
1823
1824
1825}
1826
1827void NuPlayer::sendSubtitleData(const sp<ABuffer> &buffer, int32_t baseIndex) {
1828    int32_t trackIndex;
1829    int64_t timeUs, durationUs;
1830    CHECK(buffer->meta()->findInt32("trackIndex", &trackIndex));
1831    CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
1832    CHECK(buffer->meta()->findInt64("durationUs", &durationUs));
1833
1834    Parcel in;
1835    in.writeInt32(trackIndex + baseIndex);
1836    in.writeInt64(timeUs);
1837    in.writeInt64(durationUs);
1838    in.writeInt32(buffer->size());
1839    in.writeInt32(buffer->size());
1840    in.write(buffer->data(), buffer->size());
1841
1842    notifyListener(MEDIA_SUBTITLE_DATA, 0, 0, &in);
1843}
1844
1845void NuPlayer::sendTimedTextData(const sp<ABuffer> &buffer) {
1846    const void *data;
1847    size_t size = 0;
1848    int64_t timeUs;
1849    int32_t flag = TextDescriptions::LOCAL_DESCRIPTIONS;
1850
1851    AString mime;
1852    CHECK(buffer->meta()->findString("mime", &mime));
1853    CHECK(strcasecmp(mime.c_str(), MEDIA_MIMETYPE_TEXT_3GPP) == 0);
1854
1855    data = buffer->data();
1856    size = buffer->size();
1857
1858    Parcel parcel;
1859    if (size > 0) {
1860        CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
1861        flag |= TextDescriptions::IN_BAND_TEXT_3GPP;
1862        TextDescriptions::getParcelOfDescriptions(
1863                (const uint8_t *)data, size, flag, timeUs / 1000, &parcel);
1864    }
1865
1866    if ((parcel.dataSize() > 0)) {
1867        notifyListener(MEDIA_TIMED_TEXT, 0, 0, &parcel);
1868    } else {  // send an empty timed text
1869        notifyListener(MEDIA_TIMED_TEXT, 0, 0);
1870    }
1871}
1872////////////////////////////////////////////////////////////////////////////////
1873
1874void NuPlayer::Source::notifyFlagsChanged(uint32_t flags) {
1875    sp<AMessage> notify = dupNotify();
1876    notify->setInt32("what", kWhatFlagsChanged);
1877    notify->setInt32("flags", flags);
1878    notify->post();
1879}
1880
1881void NuPlayer::Source::notifyVideoSizeChanged(int32_t width, int32_t height) {
1882    sp<AMessage> notify = dupNotify();
1883    notify->setInt32("what", kWhatVideoSizeChanged);
1884    notify->setInt32("width", width);
1885    notify->setInt32("height", height);
1886    notify->post();
1887}
1888
1889void NuPlayer::Source::notifyPrepared(status_t err) {
1890    sp<AMessage> notify = dupNotify();
1891    notify->setInt32("what", kWhatPrepared);
1892    notify->setInt32("err", err);
1893    notify->post();
1894}
1895
1896void NuPlayer::Source::onMessageReceived(const sp<AMessage> & /* msg */) {
1897    TRESPASS();
1898}
1899
1900void NuPlayer::queueDecoderShutdown(
1901        bool audio, bool video, const sp<AMessage> &reply) {
1902    ALOGI("queueDecoderShutdown audio=%d, video=%d", audio, video);
1903
1904    mDeferredActions.push_back(
1905            new ShutdownDecoderAction(audio, video));
1906
1907    mDeferredActions.push_back(
1908            new SimpleAction(&NuPlayer::performScanSources));
1909
1910    mDeferredActions.push_back(new PostMessageAction(reply));
1911
1912    processDeferredActions();
1913}
1914
1915}  // namespace android
1916