NuPlayer.cpp revision 095248375e29adde961ec2a44989ecb3a6dda6a2 
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
33#include "ATSParser.h"
34
35#include <media/stagefright/foundation/hexdump.h>
36#include <media/stagefright/foundation/ABuffer.h>
37#include <media/stagefright/foundation/ADebug.h>
38#include <media/stagefright/foundation/AMessage.h>
39#include <media/stagefright/MediaBuffer.h>
40#include <media/stagefright/MediaDefs.h>
41#include <media/stagefright/MediaErrors.h>
42#include <media/stagefright/MetaData.h>
43#include <gui/IGraphicBufferProducer.h>
44
45#include "avc_utils.h"
46
47#include "ESDS.h"
48#include <media/stagefright/Utils.h>
49
50namespace android {
51
52struct NuPlayer::Action : public RefBase {
53    Action() {}
54
55    virtual void execute(NuPlayer *player) = 0;
56
57private:
58    DISALLOW_EVIL_CONSTRUCTORS(Action);
59};
60
61struct NuPlayer::SeekAction : public Action {
62    SeekAction(int64_t seekTimeUs)
63        : mSeekTimeUs(seekTimeUs) {
64    }
65
66    virtual void execute(NuPlayer *player) {
67        player->performSeek(mSeekTimeUs);
68    }
69
70private:
71    int64_t mSeekTimeUs;
72
73    DISALLOW_EVIL_CONSTRUCTORS(SeekAction);
74};
75
76struct NuPlayer::SetSurfaceAction : public Action {
77    SetSurfaceAction(const sp<NativeWindowWrapper> &wrapper)
78        : mWrapper(wrapper) {
79    }
80
81    virtual void execute(NuPlayer *player) {
82        player->performSetSurface(mWrapper);
83    }
84
85private:
86    sp<NativeWindowWrapper> mWrapper;
87
88    DISALLOW_EVIL_CONSTRUCTORS(SetSurfaceAction);
89};
90
91struct NuPlayer::ShutdownDecoderAction : public Action {
92    ShutdownDecoderAction(bool audio, bool video)
93        : mAudio(audio),
94          mVideo(video) {
95    }
96
97    virtual void execute(NuPlayer *player) {
98        player->performDecoderShutdown(mAudio, mVideo);
99    }
100
101private:
102    bool mAudio;
103    bool mVideo;
104
105    DISALLOW_EVIL_CONSTRUCTORS(ShutdownDecoderAction);
106};
107
108struct NuPlayer::PostMessageAction : public Action {
109    PostMessageAction(const sp<AMessage> &msg)
110        : mMessage(msg) {
111    }
112
113    virtual void execute(NuPlayer *) {
114        mMessage->post();
115    }
116
117private:
118    sp<AMessage> mMessage;
119
120    DISALLOW_EVIL_CONSTRUCTORS(PostMessageAction);
121};
122
123// Use this if there's no state necessary to save in order to execute
124// the action.
125struct NuPlayer::SimpleAction : public Action {
126    typedef void (NuPlayer::*ActionFunc)();
127
128    SimpleAction(ActionFunc func)
129        : mFunc(func) {
130    }
131
132    virtual void execute(NuPlayer *player) {
133        (player->*mFunc)();
134    }
135
136private:
137    ActionFunc mFunc;
138
139    DISALLOW_EVIL_CONSTRUCTORS(SimpleAction);
140};
141
142////////////////////////////////////////////////////////////////////////////////
143
144NuPlayer::NuPlayer()
145    : mUIDValid(false),
146      mSourceFlags(0),
147      mVideoIsAVC(false),
148      mOffloadAudio(false),
149      mAudioEOS(false),
150      mVideoEOS(false),
151      mScanSourcesPending(false),
152      mScanSourcesGeneration(0),
153      mPollDurationGeneration(0),
154      mTimeDiscontinuityPending(false),
155      mFlushingAudio(NONE),
156      mFlushingVideo(NONE),
157      mSkipRenderingAudioUntilMediaTimeUs(-1ll),
158      mSkipRenderingVideoUntilMediaTimeUs(-1ll),
159      mVideoLateByUs(0ll),
160      mNumFramesTotal(0ll),
161      mNumFramesDropped(0ll),
162      mVideoScalingMode(NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW),
163      mStarted(false) {
164}
165
166NuPlayer::~NuPlayer() {
167}
168
169void NuPlayer::setUID(uid_t uid) {
170    mUIDValid = true;
171    mUID = uid;
172}
173
174void NuPlayer::setDriver(const wp<NuPlayerDriver> &driver) {
175    mDriver = driver;
176}
177
178void NuPlayer::setDataSourceAsync(const sp<IStreamSource> &source) {
179    sp<AMessage> msg = new AMessage(kWhatSetDataSource, id());
180
181    sp<AMessage> notify = new AMessage(kWhatSourceNotify, id());
182
183    msg->setObject("source", new StreamingSource(notify, source));
184    msg->post();
185}
186
187static bool IsHTTPLiveURL(const char *url) {
188    if (!strncasecmp("http://", url, 7)
189            || !strncasecmp("https://", url, 8)
190            || !strncasecmp("file://", url, 7)) {
191        size_t len = strlen(url);
192        if (len >= 5 && !strcasecmp(".m3u8", &url[len - 5])) {
193            return true;
194        }
195
196        if (strstr(url,"m3u8")) {
197            return true;
198        }
199    }
200
201    return false;
202}
203
204void NuPlayer::setDataSourceAsync(
205        const sp<IMediaHTTPService> &httpService,
206        const char *url,
207        const KeyedVector<String8, String8> *headers) {
208    sp<AMessage> msg = new AMessage(kWhatSetDataSource, id());
209    size_t len = strlen(url);
210
211    sp<AMessage> notify = new AMessage(kWhatSourceNotify, id());
212
213    sp<Source> source;
214    if (IsHTTPLiveURL(url)) {
215        source = new HTTPLiveSource(notify, httpService, url, headers);
216    } else if (!strncasecmp(url, "rtsp://", 7)) {
217        source = new RTSPSource(
218                notify, httpService, url, headers, mUIDValid, mUID);
219    } else if ((!strncasecmp(url, "http://", 7)
220                || !strncasecmp(url, "https://", 8))
221                    && ((len >= 4 && !strcasecmp(".sdp", &url[len - 4]))
222                    || strstr(url, ".sdp?"))) {
223        source = new RTSPSource(
224                notify, httpService, url, headers, mUIDValid, mUID, true);
225    } else if ((!strncasecmp(url, "widevine://", 11))) {
226        source = new GenericSource(notify, httpService, url, headers,
227                true /* isWidevine */, mUIDValid, mUID);
228        mSourceFlags |= Source::FLAG_SECURE;
229    } else {
230        source = new GenericSource(notify, httpService, url, headers);
231    }
232
233    msg->setObject("source", source);
234    msg->post();
235}
236
237void NuPlayer::setDataSourceAsync(int fd, int64_t offset, int64_t length) {
238    sp<AMessage> msg = new AMessage(kWhatSetDataSource, id());
239
240    sp<AMessage> notify = new AMessage(kWhatSourceNotify, id());
241
242    sp<Source> source = new GenericSource(notify, fd, offset, length);
243    msg->setObject("source", source);
244    msg->post();
245}
246
247void NuPlayer::prepareAsync() {
248    (new AMessage(kWhatPrepare, id()))->post();
249}
250
251void NuPlayer::setVideoSurfaceTextureAsync(
252        const sp<IGraphicBufferProducer> &bufferProducer) {
253    sp<AMessage> msg = new AMessage(kWhatSetVideoNativeWindow, id());
254
255    if (bufferProducer == NULL) {
256        msg->setObject("native-window", NULL);
257    } else {
258        msg->setObject(
259                "native-window",
260                new NativeWindowWrapper(
261                    new Surface(bufferProducer)));
262    }
263
264    msg->post();
265}
266
267void NuPlayer::setAudioSink(const sp<MediaPlayerBase::AudioSink> &sink) {
268    sp<AMessage> msg = new AMessage(kWhatSetAudioSink, id());
269    msg->setObject("sink", sink);
270    msg->post();
271}
272
273void NuPlayer::start() {
274    (new AMessage(kWhatStart, id()))->post();
275}
276
277void NuPlayer::pause() {
278    (new AMessage(kWhatPause, id()))->post();
279}
280
281void NuPlayer::resume() {
282    (new AMessage(kWhatResume, id()))->post();
283}
284
285void NuPlayer::resetAsync() {
286    (new AMessage(kWhatReset, id()))->post();
287}
288
289void NuPlayer::seekToAsync(int64_t seekTimeUs) {
290    sp<AMessage> msg = new AMessage(kWhatSeek, id());
291    msg->setInt64("seekTimeUs", seekTimeUs);
292    msg->post();
293}
294
295// static
296bool NuPlayer::IsFlushingState(FlushStatus state, bool *needShutdown) {
297    switch (state) {
298        case FLUSHING_DECODER:
299            if (needShutdown != NULL) {
300                *needShutdown = false;
301            }
302            return true;
303
304        case FLUSHING_DECODER_SHUTDOWN:
305            if (needShutdown != NULL) {
306                *needShutdown = true;
307            }
308            return true;
309
310        default:
311            return false;
312    }
313}
314
315void NuPlayer::writeTrackInfo(
316        Parcel* reply, const sp<AMessage> format) const {
317    int32_t trackType;
318    CHECK(format->findInt32("type", &trackType));
319
320    AString lang;
321    CHECK(format->findString("language", &lang));
322
323    reply->writeInt32(2); // write something non-zero
324    reply->writeInt32(trackType);
325    reply->writeString16(String16(lang.c_str()));
326
327    if (trackType == MEDIA_TRACK_TYPE_SUBTITLE) {
328        AString mime;
329        CHECK(format->findString("mime", &mime));
330
331        int32_t isAuto, isDefault, isForced;
332        CHECK(format->findInt32("auto", &isAuto));
333        CHECK(format->findInt32("default", &isDefault));
334        CHECK(format->findInt32("forced", &isForced));
335
336        reply->writeString16(String16(mime.c_str()));
337        reply->writeInt32(isAuto);
338        reply->writeInt32(isDefault);
339        reply->writeInt32(isForced);
340    }
341}
342
343void NuPlayer::onMessageReceived(const sp<AMessage> &msg) {
344    switch (msg->what()) {
345        case kWhatSetDataSource:
346        {
347            ALOGV("kWhatSetDataSource");
348
349            CHECK(mSource == NULL);
350
351            sp<RefBase> obj;
352            CHECK(msg->findObject("source", &obj));
353
354            mSource = static_cast<Source *>(obj.get());
355
356            looper()->registerHandler(mSource);
357
358            CHECK(mDriver != NULL);
359            sp<NuPlayerDriver> driver = mDriver.promote();
360            if (driver != NULL) {
361                driver->notifySetDataSourceCompleted(OK);
362            }
363            break;
364        }
365
366        case kWhatPrepare:
367        {
368            mSource->prepareAsync();
369            break;
370        }
371
372        case kWhatGetTrackInfo:
373        {
374            uint32_t replyID;
375            CHECK(msg->senderAwaitsResponse(&replyID));
376
377            Parcel* reply;
378            CHECK(msg->findPointer("reply", (void**)&reply));
379
380            size_t inbandTracks = 0;
381            if (mSource != NULL) {
382                inbandTracks = mSource->getTrackCount();
383            }
384
385            size_t ccTracks = 0;
386            if (mCCDecoder != NULL) {
387                ccTracks = mCCDecoder->getTrackCount();
388            }
389
390            // total track count
391            reply->writeInt32(inbandTracks + ccTracks);
392
393            // write inband tracks
394            for (size_t i = 0; i < inbandTracks; ++i) {
395                writeTrackInfo(reply, mSource->getTrackInfo(i));
396            }
397
398            // write CC track
399            for (size_t i = 0; i < ccTracks; ++i) {
400                writeTrackInfo(reply, mCCDecoder->getTrackInfo(i));
401            }
402
403            sp<AMessage> response = new AMessage;
404            response->postReply(replyID);
405            break;
406        }
407
408        case kWhatSelectTrack:
409        {
410            uint32_t replyID;
411            CHECK(msg->senderAwaitsResponse(&replyID));
412
413            size_t trackIndex;
414            int32_t select;
415            CHECK(msg->findSize("trackIndex", &trackIndex));
416            CHECK(msg->findInt32("select", &select));
417
418            status_t err = INVALID_OPERATION;
419
420            size_t inbandTracks = 0;
421            if (mSource != NULL) {
422                inbandTracks = mSource->getTrackCount();
423            }
424            size_t ccTracks = 0;
425            if (mCCDecoder != NULL) {
426                ccTracks = mCCDecoder->getTrackCount();
427            }
428
429            if (trackIndex < inbandTracks) {
430                err = mSource->selectTrack(trackIndex, select);
431            } else {
432                trackIndex -= inbandTracks;
433
434                if (trackIndex < ccTracks) {
435                    err = mCCDecoder->selectTrack(trackIndex, select);
436                }
437            }
438
439            sp<AMessage> response = new AMessage;
440            response->setInt32("err", err);
441
442            response->postReply(replyID);
443            break;
444        }
445
446        case kWhatPollDuration:
447        {
448            int32_t generation;
449            CHECK(msg->findInt32("generation", &generation));
450
451            if (generation != mPollDurationGeneration) {
452                // stale
453                break;
454            }
455
456            int64_t durationUs;
457            if (mDriver != NULL && mSource->getDuration(&durationUs) == OK) {
458                sp<NuPlayerDriver> driver = mDriver.promote();
459                if (driver != NULL) {
460                    driver->notifyDuration(durationUs);
461                }
462            }
463
464            msg->post(1000000ll);  // poll again in a second.
465            break;
466        }
467
468        case kWhatSetVideoNativeWindow:
469        {
470            ALOGV("kWhatSetVideoNativeWindow");
471
472            mDeferredActions.push_back(
473                    new ShutdownDecoderAction(
474                        false /* audio */, true /* video */));
475
476            sp<RefBase> obj;
477            CHECK(msg->findObject("native-window", &obj));
478
479            mDeferredActions.push_back(
480                    new SetSurfaceAction(
481                        static_cast<NativeWindowWrapper *>(obj.get())));
482
483            if (obj != NULL) {
484                // If there is a new surface texture, instantiate decoders
485                // again if possible.
486                mDeferredActions.push_back(
487                        new SimpleAction(&NuPlayer::performScanSources));
488            }
489
490            processDeferredActions();
491            break;
492        }
493
494        case kWhatSetAudioSink:
495        {
496            ALOGV("kWhatSetAudioSink");
497
498            sp<RefBase> obj;
499            CHECK(msg->findObject("sink", &obj));
500
501            mAudioSink = static_cast<MediaPlayerBase::AudioSink *>(obj.get());
502            break;
503        }
504
505        case kWhatStart:
506        {
507            ALOGV("kWhatStart");
508
509            mVideoIsAVC = false;
510            mOffloadAudio = false;
511            mAudioEOS = false;
512            mVideoEOS = false;
513            mSkipRenderingAudioUntilMediaTimeUs = -1;
514            mSkipRenderingVideoUntilMediaTimeUs = -1;
515            mVideoLateByUs = 0;
516            mNumFramesTotal = 0;
517            mNumFramesDropped = 0;
518            mStarted = true;
519
520            /* instantiate decoders now for secure playback */
521            if (mSourceFlags & Source::FLAG_SECURE) {
522                if (mNativeWindow != NULL) {
523                    instantiateDecoder(false, &mVideoDecoder);
524                }
525
526                if (mAudioSink != NULL) {
527                    instantiateDecoder(true, &mAudioDecoder);
528                }
529            }
530
531            mSource->start();
532
533            uint32_t flags = 0;
534
535            if (mSource->isRealTime()) {
536                flags |= Renderer::FLAG_REAL_TIME;
537            }
538
539            sp<MetaData> audioMeta = mSource->getFormatMeta(true /* audio */);
540            audio_stream_type_t streamType = AUDIO_STREAM_MUSIC;
541            if (mAudioSink != NULL) {
542                streamType = mAudioSink->getAudioStreamType();
543            }
544
545            sp<AMessage> videoFormat = mSource->getFormat(false /* audio */);
546
547            mOffloadAudio =
548                canOffloadStream(audioMeta, (videoFormat != NULL),
549                                 true /* is_streaming */, streamType);
550            if (mOffloadAudio) {
551                flags |= Renderer::FLAG_OFFLOAD_AUDIO;
552            }
553
554            mRenderer = new Renderer(
555                    mAudioSink,
556                    new AMessage(kWhatRendererNotify, id()),
557                    flags);
558
559            mRendererLooper = new ALooper;
560            mRendererLooper->setName("NuPlayerRenderer");
561            mRendererLooper->start(false, false, ANDROID_PRIORITY_AUDIO);
562            mRendererLooper->registerHandler(mRenderer);
563
564            postScanSources();
565            break;
566        }
567
568        case kWhatScanSources:
569        {
570            int32_t generation;
571            CHECK(msg->findInt32("generation", &generation));
572            if (generation != mScanSourcesGeneration) {
573                // Drop obsolete msg.
574                break;
575            }
576
577            mScanSourcesPending = false;
578
579            ALOGV("scanning sources haveAudio=%d, haveVideo=%d",
580                 mAudioDecoder != NULL, mVideoDecoder != NULL);
581
582            bool mHadAnySourcesBefore =
583                (mAudioDecoder != NULL) || (mVideoDecoder != NULL);
584
585            if (mNativeWindow != NULL) {
586                instantiateDecoder(false, &mVideoDecoder);
587            }
588
589            if (mAudioSink != NULL) {
590                instantiateDecoder(true, &mAudioDecoder);
591            }
592
593            if (!mHadAnySourcesBefore
594                    && (mAudioDecoder != NULL || mVideoDecoder != NULL)) {
595                // This is the first time we've found anything playable.
596
597                if (mSourceFlags & Source::FLAG_DYNAMIC_DURATION) {
598                    schedulePollDuration();
599                }
600            }
601
602            status_t err;
603            if ((err = mSource->feedMoreTSData()) != OK) {
604                if (mAudioDecoder == NULL && mVideoDecoder == NULL) {
605                    // We're not currently decoding anything (no audio or
606                    // video tracks found) and we just ran out of input data.
607
608                    if (err == ERROR_END_OF_STREAM) {
609                        notifyListener(MEDIA_PLAYBACK_COMPLETE, 0, 0);
610                    } else {
611                        notifyListener(MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, err);
612                    }
613                }
614                break;
615            }
616
617            if ((mAudioDecoder == NULL && mAudioSink != NULL)
618                    || (mVideoDecoder == NULL && mNativeWindow != NULL)) {
619                msg->post(100000ll);
620                mScanSourcesPending = true;
621            }
622            break;
623        }
624
625        case kWhatVideoNotify:
626        case kWhatAudioNotify:
627        {
628            bool audio = msg->what() == kWhatAudioNotify;
629
630            int32_t what;
631            CHECK(msg->findInt32("what", &what));
632
633            if (what == Decoder::kWhatFillThisBuffer) {
634                status_t err = feedDecoderInputData(
635                        audio, msg);
636
637                if (err == -EWOULDBLOCK) {
638                    if (mSource->feedMoreTSData() == OK) {
639                        msg->post(10000ll);
640                    }
641                }
642            } else if (what == Decoder::kWhatEOS) {
643                int32_t err;
644                CHECK(msg->findInt32("err", &err));
645
646                if (err == ERROR_END_OF_STREAM) {
647                    ALOGV("got %s decoder EOS", audio ? "audio" : "video");
648                } else {
649                    ALOGV("got %s decoder EOS w/ error %d",
650                         audio ? "audio" : "video",
651                         err);
652                }
653
654                mRenderer->queueEOS(audio, err);
655            } else if (what == Decoder::kWhatFlushCompleted) {
656                bool needShutdown;
657
658                if (audio) {
659                    CHECK(IsFlushingState(mFlushingAudio, &needShutdown));
660                    mFlushingAudio = FLUSHED;
661                } else {
662                    CHECK(IsFlushingState(mFlushingVideo, &needShutdown));
663                    mFlushingVideo = FLUSHED;
664
665                    mVideoLateByUs = 0;
666                }
667
668                ALOGV("decoder %s flush completed", audio ? "audio" : "video");
669
670                if (needShutdown) {
671                    ALOGV("initiating %s decoder shutdown",
672                         audio ? "audio" : "video");
673
674                    (audio ? mAudioDecoder : mVideoDecoder)->initiateShutdown();
675
676                    if (audio) {
677                        mFlushingAudio = SHUTTING_DOWN_DECODER;
678                    } else {
679                        mFlushingVideo = SHUTTING_DOWN_DECODER;
680                    }
681                }
682
683                finishFlushIfPossible();
684            } else if (what == Decoder::kWhatOutputFormatChanged) {
685                sp<AMessage> format;
686                CHECK(msg->findMessage("format", &format));
687
688                if (audio) {
689                    int32_t numChannels;
690                    CHECK(format->findInt32(
691                                "channel-count", &numChannels));
692
693                    int32_t sampleRate;
694                    CHECK(format->findInt32("sample-rate", &sampleRate));
695
696                    ALOGV("Audio output format changed to %d Hz, %d channels",
697                         sampleRate, numChannels);
698
699                    mAudioSink->close();
700
701                    uint32_t flags;
702                    int64_t durationUs;
703                    // FIXME: we should handle the case where the video decoder
704                    // is created after we receive the format change indication.
705                    // Current code will just make that we select deep buffer
706                    // with video which should not be a problem as it should
707                    // not prevent from keeping A/V sync.
708                    if (mVideoDecoder == NULL &&
709                            mSource->getDuration(&durationUs) == OK &&
710                            durationUs
711                                > AUDIO_SINK_MIN_DEEP_BUFFER_DURATION_US) {
712                        flags = AUDIO_OUTPUT_FLAG_DEEP_BUFFER;
713                    } else {
714                        flags = AUDIO_OUTPUT_FLAG_NONE;
715                    }
716
717                    int32_t channelMask;
718                    if (!format->findInt32("channel-mask", &channelMask)) {
719                        channelMask = CHANNEL_MASK_USE_CHANNEL_ORDER;
720                    }
721
722                    if (mOffloadAudio) {
723                        audio_format_t audioFormat = AUDIO_FORMAT_PCM_16_BIT;
724                        audio_offload_info_t offloadInfo =
725                                AUDIO_INFO_INITIALIZER;
726
727                        AString mime;
728                        CHECK(format->findString("mime", &mime));
729
730                        status_t err =
731                            mapMimeToAudioFormat(audioFormat, mime.c_str());
732                        if (err != OK) {
733                            ALOGE("Couldn't map mime \"%s\" to a valid "
734                                    "audio_format", mime.c_str());
735                            mOffloadAudio = false;
736                        } else {
737                            ALOGV("Mime \"%s\" mapped to audio_format 0x%x",
738                                    mime.c_str(), audioFormat);
739
740                            flags |= AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD;
741
742                            offloadInfo.duration_us = -1;
743                            format->findInt64(
744                                    "durationUs", &offloadInfo.duration_us);
745
746                            int avgBitRate = -1;
747                            format->findInt32("bit-rate", &avgBitRate);
748
749                            offloadInfo.sample_rate = sampleRate;
750                            offloadInfo.channel_mask = channelMask;
751                            offloadInfo.format = audioFormat;
752                            offloadInfo.stream_type = AUDIO_STREAM_MUSIC;
753                            offloadInfo.bit_rate = avgBitRate;
754                            offloadInfo.has_video = (mVideoDecoder != NULL);
755                            offloadInfo.is_streaming = true;
756
757                            err = mAudioSink->open(
758                                    sampleRate,
759                                    numChannels,
760                                    (audio_channel_mask_t)channelMask,
761                                    audioFormat,
762                                    8 /* bufferCount */,
763                                    &NuPlayer::Renderer::AudioSinkCallback,
764                                    mRenderer.get(),
765                                    (audio_output_flags_t)flags,
766                                    &offloadInfo);
767
768                            if (err == OK) {
769                                // If the playback is offloaded to h/w, we pass
770                                // the HAL some metadata information.
771                                // We don't want to do this for PCM because it
772                                // will be going through the AudioFlinger mixer
773                                // before reaching the hardware.
774                                sp<MetaData> audioMeta =
775                                    mSource->getFormatMeta(true /* audio */);
776                                sendMetaDataToHal(mAudioSink, audioMeta);
777
778                                err = mAudioSink->start();
779                            }
780                        }
781
782                        if (err != OK) {
783                            // Clean up, fall back to non offload mode.
784                            mAudioSink->close();
785                            mAudioDecoder.clear();
786                            mRenderer->signalDisableOffloadAudio();
787                            mOffloadAudio = false;
788
789                            instantiateDecoder(
790                                    true /* audio */, &mAudioDecoder);
791                        }
792                    }
793
794                    if (!mOffloadAudio) {
795                        flags &= ~AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD;
796                        CHECK_EQ(mAudioSink->open(
797                                    sampleRate,
798                                    numChannels,
799                                    (audio_channel_mask_t)channelMask,
800                                    AUDIO_FORMAT_PCM_16_BIT,
801                                    8 /* bufferCount */,
802                                    NULL,
803                                    NULL,
804                                    (audio_output_flags_t)flags),
805                                 (status_t)OK);
806                        mAudioSink->start();
807                    }
808
809                    mRenderer->signalAudioSinkChanged();
810                } else {
811                    // video
812
813                    int32_t width, height;
814                    CHECK(format->findInt32("width", &width));
815                    CHECK(format->findInt32("height", &height));
816
817                    int32_t cropLeft, cropTop, cropRight, cropBottom;
818                    CHECK(format->findRect(
819                                "crop",
820                                &cropLeft, &cropTop, &cropRight, &cropBottom));
821
822                    int32_t displayWidth = cropRight - cropLeft + 1;
823                    int32_t displayHeight = cropBottom - cropTop + 1;
824
825                    ALOGV("Video output format changed to %d x %d "
826                         "(crop: %d x %d @ (%d, %d))",
827                         width, height,
828                         displayWidth,
829                         displayHeight,
830                         cropLeft, cropTop);
831
832                    sp<AMessage> videoInputFormat =
833                        mSource->getFormat(false /* audio */);
834
835                    // Take into account sample aspect ratio if necessary:
836                    int32_t sarWidth, sarHeight;
837                    if (videoInputFormat->findInt32("sar-width", &sarWidth)
838                            && videoInputFormat->findInt32(
839                                "sar-height", &sarHeight)) {
840                        ALOGV("Sample aspect ratio %d : %d",
841                              sarWidth, sarHeight);
842
843                        displayWidth = (displayWidth * sarWidth) / sarHeight;
844
845                        ALOGV("display dimensions %d x %d",
846                              displayWidth, displayHeight);
847                    }
848
849                    notifyListener(
850                            MEDIA_SET_VIDEO_SIZE, displayWidth, displayHeight);
851                }
852            } else if (what == Decoder::kWhatShutdownCompleted) {
853                ALOGV("%s shutdown completed", audio ? "audio" : "video");
854                if (audio) {
855                    mAudioDecoder.clear();
856
857                    CHECK_EQ((int)mFlushingAudio, (int)SHUTTING_DOWN_DECODER);
858                    mFlushingAudio = SHUT_DOWN;
859                } else {
860                    mVideoDecoder.clear();
861
862                    CHECK_EQ((int)mFlushingVideo, (int)SHUTTING_DOWN_DECODER);
863                    mFlushingVideo = SHUT_DOWN;
864                }
865
866                finishFlushIfPossible();
867            } else if (what == Decoder::kWhatError) {
868                ALOGE("Received error from %s decoder, aborting playback.",
869                     audio ? "audio" : "video");
870
871                mRenderer->queueEOS(audio, UNKNOWN_ERROR);
872            } else if (what == Decoder::kWhatDrainThisBuffer) {
873                renderBuffer(audio, msg);
874            } else {
875                ALOGV("Unhandled decoder notification %d '%c%c%c%c'.",
876                      what,
877                      what >> 24,
878                      (what >> 16) & 0xff,
879                      (what >> 8) & 0xff,
880                      what & 0xff);
881            }
882
883            break;
884        }
885
886        case kWhatRendererNotify:
887        {
888            int32_t what;
889            CHECK(msg->findInt32("what", &what));
890
891            if (what == Renderer::kWhatEOS) {
892                int32_t audio;
893                CHECK(msg->findInt32("audio", &audio));
894
895                int32_t finalResult;
896                CHECK(msg->findInt32("finalResult", &finalResult));
897
898                if (audio) {
899                    mAudioEOS = true;
900                } else {
901                    mVideoEOS = true;
902                }
903
904                if (finalResult == ERROR_END_OF_STREAM) {
905                    ALOGV("reached %s EOS", audio ? "audio" : "video");
906                } else {
907                    ALOGE("%s track encountered an error (%d)",
908                         audio ? "audio" : "video", finalResult);
909
910                    notifyListener(
911                            MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, finalResult);
912                }
913
914                if ((mAudioEOS || mAudioDecoder == NULL)
915                        && (mVideoEOS || mVideoDecoder == NULL)) {
916                    notifyListener(MEDIA_PLAYBACK_COMPLETE, 0, 0);
917                }
918            } else if (what == Renderer::kWhatPosition) {
919                int64_t positionUs;
920                CHECK(msg->findInt64("positionUs", &positionUs));
921
922                CHECK(msg->findInt64("videoLateByUs", &mVideoLateByUs));
923
924                if (mDriver != NULL) {
925                    sp<NuPlayerDriver> driver = mDriver.promote();
926                    if (driver != NULL) {
927                        driver->notifyPosition(positionUs);
928
929                        driver->notifyFrameStats(
930                                mNumFramesTotal, mNumFramesDropped);
931                    }
932                }
933            } else if (what == Renderer::kWhatFlushComplete) {
934                int32_t audio;
935                CHECK(msg->findInt32("audio", &audio));
936
937                ALOGV("renderer %s flush completed.", audio ? "audio" : "video");
938            } else if (what == Renderer::kWhatVideoRenderingStart) {
939                notifyListener(MEDIA_INFO, MEDIA_INFO_RENDERING_START, 0);
940            } else if (what == Renderer::kWhatMediaRenderingStart) {
941                ALOGV("media rendering started");
942                notifyListener(MEDIA_STARTED, 0, 0);
943            }
944            break;
945        }
946
947        case kWhatMoreDataQueued:
948        {
949            break;
950        }
951
952        case kWhatReset:
953        {
954            ALOGV("kWhatReset");
955
956            mDeferredActions.push_back(
957                    new ShutdownDecoderAction(
958                        true /* audio */, true /* video */));
959
960            mDeferredActions.push_back(
961                    new SimpleAction(&NuPlayer::performReset));
962
963            processDeferredActions();
964            break;
965        }
966
967        case kWhatSeek:
968        {
969            int64_t seekTimeUs;
970            CHECK(msg->findInt64("seekTimeUs", &seekTimeUs));
971
972            ALOGV("kWhatSeek seekTimeUs=%lld us", seekTimeUs);
973
974            mDeferredActions.push_back(
975                    new SimpleAction(&NuPlayer::performDecoderFlush));
976
977            mDeferredActions.push_back(new SeekAction(seekTimeUs));
978
979            processDeferredActions();
980            break;
981        }
982
983        case kWhatPause:
984        {
985            CHECK(mRenderer != NULL);
986            mSource->pause();
987            mRenderer->pause();
988            break;
989        }
990
991        case kWhatResume:
992        {
993            CHECK(mRenderer != NULL);
994            mSource->resume();
995            mRenderer->resume();
996            break;
997        }
998
999        case kWhatSourceNotify:
1000        {
1001            onSourceNotify(msg);
1002            break;
1003        }
1004
1005        case kWhatClosedCaptionNotify:
1006        {
1007            onClosedCaptionNotify(msg);
1008            break;
1009        }
1010
1011        default:
1012            TRESPASS();
1013            break;
1014    }
1015}
1016
1017void NuPlayer::finishFlushIfPossible() {
1018    if (mFlushingAudio != FLUSHED && mFlushingAudio != SHUT_DOWN) {
1019        return;
1020    }
1021
1022    if (mFlushingVideo != FLUSHED && mFlushingVideo != SHUT_DOWN) {
1023        return;
1024    }
1025
1026    ALOGV("both audio and video are flushed now.");
1027
1028    if (mTimeDiscontinuityPending) {
1029        mRenderer->signalTimeDiscontinuity();
1030        mTimeDiscontinuityPending = false;
1031    }
1032
1033    if (mAudioDecoder != NULL) {
1034        mAudioDecoder->signalResume();
1035    }
1036
1037    if (mVideoDecoder != NULL) {
1038        mVideoDecoder->signalResume();
1039    }
1040
1041    mFlushingAudio = NONE;
1042    mFlushingVideo = NONE;
1043
1044    processDeferredActions();
1045}
1046
1047void NuPlayer::postScanSources() {
1048    if (mScanSourcesPending) {
1049        return;
1050    }
1051
1052    sp<AMessage> msg = new AMessage(kWhatScanSources, id());
1053    msg->setInt32("generation", mScanSourcesGeneration);
1054    msg->post();
1055
1056    mScanSourcesPending = true;
1057}
1058
1059status_t NuPlayer::instantiateDecoder(bool audio, sp<Decoder> *decoder) {
1060    if (*decoder != NULL) {
1061        return OK;
1062    }
1063
1064    sp<AMessage> format = mSource->getFormat(audio);
1065
1066    if (format == NULL) {
1067        return -EWOULDBLOCK;
1068    }
1069
1070    if (!audio) {
1071        AString mime;
1072        CHECK(format->findString("mime", &mime));
1073        mVideoIsAVC = !strcasecmp(MEDIA_MIMETYPE_VIDEO_AVC, mime.c_str());
1074
1075        sp<AMessage> ccNotify = new AMessage(kWhatClosedCaptionNotify, id());
1076        mCCDecoder = new CCDecoder(ccNotify);
1077
1078        if (mSourceFlags & Source::FLAG_SECURE) {
1079            format->setInt32("secure", true);
1080        }
1081    }
1082
1083    sp<AMessage> notify =
1084        new AMessage(audio ? kWhatAudioNotify : kWhatVideoNotify,
1085                     id());
1086
1087    if (audio) {
1088        if (mOffloadAudio) {
1089            *decoder = new DecoderPassThrough(notify);
1090        } else {
1091            *decoder = new Decoder(notify);
1092        }
1093    } else {
1094        *decoder = new Decoder(notify, mNativeWindow);
1095    }
1096    (*decoder)->init();
1097    (*decoder)->configure(format);
1098
1099    // allocate buffers to decrypt widevine source buffers
1100    if (!audio && (mSourceFlags & Source::FLAG_SECURE)) {
1101        Vector<sp<ABuffer> > inputBufs;
1102        CHECK_EQ((*decoder)->getInputBuffers(&inputBufs), (status_t)OK);
1103
1104        Vector<MediaBuffer *> mediaBufs;
1105        for (size_t i = 0; i < inputBufs.size(); i++) {
1106            const sp<ABuffer> &buffer = inputBufs[i];
1107            MediaBuffer *mbuf = new MediaBuffer(buffer->data(), buffer->size());
1108            mediaBufs.push(mbuf);
1109        }
1110
1111        status_t err = mSource->setBuffers(audio, mediaBufs);
1112        if (err != OK) {
1113            for (size_t i = 0; i < mediaBufs.size(); ++i) {
1114                mediaBufs[i]->release();
1115            }
1116            mediaBufs.clear();
1117            ALOGE("Secure source didn't support secure mediaBufs.");
1118            return err;
1119        }
1120    }
1121    return OK;
1122}
1123
1124status_t NuPlayer::feedDecoderInputData(bool audio, const sp<AMessage> &msg) {
1125    sp<AMessage> reply;
1126    CHECK(msg->findMessage("reply", &reply));
1127
1128    if ((audio && IsFlushingState(mFlushingAudio))
1129            || (!audio && IsFlushingState(mFlushingVideo))) {
1130        reply->setInt32("err", INFO_DISCONTINUITY);
1131        reply->post();
1132        return OK;
1133    }
1134
1135    sp<ABuffer> accessUnit;
1136
1137    bool dropAccessUnit;
1138    do {
1139        status_t err = mSource->dequeueAccessUnit(audio, &accessUnit);
1140
1141        if (err == -EWOULDBLOCK) {
1142            return err;
1143        } else if (err != OK) {
1144            if (err == INFO_DISCONTINUITY) {
1145                int32_t type;
1146                CHECK(accessUnit->meta()->findInt32("discontinuity", &type));
1147
1148                bool formatChange =
1149                    (audio &&
1150                     (type & ATSParser::DISCONTINUITY_AUDIO_FORMAT))
1151                    || (!audio &&
1152                            (type & ATSParser::DISCONTINUITY_VIDEO_FORMAT));
1153
1154                bool timeChange = (type & ATSParser::DISCONTINUITY_TIME) != 0;
1155
1156                ALOGI("%s discontinuity (formatChange=%d, time=%d)",
1157                     audio ? "audio" : "video", formatChange, timeChange);
1158
1159                if (audio) {
1160                    mSkipRenderingAudioUntilMediaTimeUs = -1;
1161                } else {
1162                    mSkipRenderingVideoUntilMediaTimeUs = -1;
1163                }
1164
1165                if (timeChange) {
1166                    sp<AMessage> extra;
1167                    if (accessUnit->meta()->findMessage("extra", &extra)
1168                            && extra != NULL) {
1169                        int64_t resumeAtMediaTimeUs;
1170                        if (extra->findInt64(
1171                                    "resume-at-mediatimeUs", &resumeAtMediaTimeUs)) {
1172                            ALOGI("suppressing rendering of %s until %lld us",
1173                                    audio ? "audio" : "video", resumeAtMediaTimeUs);
1174
1175                            if (audio) {
1176                                mSkipRenderingAudioUntilMediaTimeUs =
1177                                    resumeAtMediaTimeUs;
1178                            } else {
1179                                mSkipRenderingVideoUntilMediaTimeUs =
1180                                    resumeAtMediaTimeUs;
1181                            }
1182                        }
1183                    }
1184                }
1185
1186                mTimeDiscontinuityPending =
1187                    mTimeDiscontinuityPending || timeChange;
1188
1189                if (formatChange || timeChange) {
1190                    if (mFlushingAudio == NONE && mFlushingVideo == NONE) {
1191                        // And we'll resume scanning sources once we're done
1192                        // flushing.
1193                        mDeferredActions.push_front(
1194                                new SimpleAction(
1195                                    &NuPlayer::performScanSources));
1196                    }
1197
1198                    sp<AMessage> newFormat = mSource->getFormat(audio);
1199                    sp<Decoder> &decoder = audio ? mAudioDecoder : mVideoDecoder;
1200                    if (formatChange && !decoder->supportsSeamlessFormatChange(newFormat)) {
1201                        flushDecoder(audio, /* needShutdown = */ true);
1202                    } else {
1203                        flushDecoder(audio, /* needShutdown = */ false);
1204                        err = OK;
1205                    }
1206                } else {
1207                    // This stream is unaffected by the discontinuity
1208
1209                    if (audio) {
1210                        mFlushingAudio = FLUSHED;
1211                    } else {
1212                        mFlushingVideo = FLUSHED;
1213                    }
1214
1215                    finishFlushIfPossible();
1216
1217                    return -EWOULDBLOCK;
1218                }
1219            }
1220
1221            reply->setInt32("err", err);
1222            reply->post();
1223            return OK;
1224        }
1225
1226        if (!audio) {
1227            ++mNumFramesTotal;
1228        }
1229
1230        dropAccessUnit = false;
1231        if (!audio
1232                && !(mSourceFlags & Source::FLAG_SECURE)
1233                && mVideoLateByUs > 100000ll
1234                && mVideoIsAVC
1235                && !IsAVCReferenceFrame(accessUnit)) {
1236            dropAccessUnit = true;
1237            ++mNumFramesDropped;
1238        }
1239    } while (dropAccessUnit);
1240
1241    // ALOGV("returned a valid buffer of %s data", audio ? "audio" : "video");
1242
1243#if 0
1244    int64_t mediaTimeUs;
1245    CHECK(accessUnit->meta()->findInt64("timeUs", &mediaTimeUs));
1246    ALOGV("feeding %s input buffer at media time %.2f secs",
1247         audio ? "audio" : "video",
1248         mediaTimeUs / 1E6);
1249#endif
1250
1251    if (!audio) {
1252        mCCDecoder->decode(accessUnit);
1253    }
1254
1255    reply->setBuffer("buffer", accessUnit);
1256    reply->post();
1257
1258    return OK;
1259}
1260
1261void NuPlayer::renderBuffer(bool audio, const sp<AMessage> &msg) {
1262    // ALOGV("renderBuffer %s", audio ? "audio" : "video");
1263
1264    sp<AMessage> reply;
1265    CHECK(msg->findMessage("reply", &reply));
1266
1267    if (IsFlushingState(audio ? mFlushingAudio : mFlushingVideo)) {
1268        // We're currently attempting to flush the decoder, in order
1269        // to complete this, the decoder wants all its buffers back,
1270        // so we don't want any output buffers it sent us (from before
1271        // we initiated the flush) to be stuck in the renderer's queue.
1272
1273        ALOGV("we're still flushing the %s decoder, sending its output buffer"
1274             " right back.", audio ? "audio" : "video");
1275
1276        reply->post();
1277        return;
1278    }
1279
1280    sp<ABuffer> buffer;
1281    CHECK(msg->findBuffer("buffer", &buffer));
1282
1283    int64_t mediaTimeUs;
1284    CHECK(buffer->meta()->findInt64("timeUs", &mediaTimeUs));
1285
1286    int64_t &skipUntilMediaTimeUs =
1287        audio
1288            ? mSkipRenderingAudioUntilMediaTimeUs
1289            : mSkipRenderingVideoUntilMediaTimeUs;
1290
1291    if (skipUntilMediaTimeUs >= 0) {
1292
1293        if (mediaTimeUs < skipUntilMediaTimeUs) {
1294            ALOGV("dropping %s buffer at time %lld as requested.",
1295                 audio ? "audio" : "video",
1296                 mediaTimeUs);
1297
1298            reply->post();
1299            return;
1300        }
1301
1302        skipUntilMediaTimeUs = -1;
1303    }
1304
1305    if (!audio && mCCDecoder->isSelected()) {
1306        mCCDecoder->display(mediaTimeUs);
1307    }
1308
1309    mRenderer->queueBuffer(audio, buffer, reply);
1310}
1311
1312void NuPlayer::notifyListener(int msg, int ext1, int ext2, const Parcel *in) {
1313    if (mDriver == NULL) {
1314        return;
1315    }
1316
1317    sp<NuPlayerDriver> driver = mDriver.promote();
1318
1319    if (driver == NULL) {
1320        return;
1321    }
1322
1323    driver->notifyListener(msg, ext1, ext2, in);
1324}
1325
1326void NuPlayer::flushDecoder(bool audio, bool needShutdown) {
1327    ALOGV("[%s] flushDecoder needShutdown=%d",
1328          audio ? "audio" : "video", needShutdown);
1329
1330    if ((audio && mAudioDecoder == NULL) || (!audio && mVideoDecoder == NULL)) {
1331        ALOGI("flushDecoder %s without decoder present",
1332             audio ? "audio" : "video");
1333    }
1334
1335    // Make sure we don't continue to scan sources until we finish flushing.
1336    ++mScanSourcesGeneration;
1337    mScanSourcesPending = false;
1338
1339    (audio ? mAudioDecoder : mVideoDecoder)->signalFlush();
1340    mRenderer->flush(audio);
1341
1342    FlushStatus newStatus =
1343        needShutdown ? FLUSHING_DECODER_SHUTDOWN : FLUSHING_DECODER;
1344
1345    if (audio) {
1346        CHECK(mFlushingAudio == NONE
1347                || mFlushingAudio == AWAITING_DISCONTINUITY);
1348
1349        mFlushingAudio = newStatus;
1350
1351        if (mFlushingVideo == NONE) {
1352            mFlushingVideo = (mVideoDecoder != NULL)
1353                ? AWAITING_DISCONTINUITY
1354                : FLUSHED;
1355        }
1356    } else {
1357        CHECK(mFlushingVideo == NONE
1358                || mFlushingVideo == AWAITING_DISCONTINUITY);
1359
1360        mFlushingVideo = newStatus;
1361
1362        if (mFlushingAudio == NONE) {
1363            mFlushingAudio = (mAudioDecoder != NULL)
1364                ? AWAITING_DISCONTINUITY
1365                : FLUSHED;
1366        }
1367    }
1368}
1369
1370sp<AMessage> NuPlayer::Source::getFormat(bool audio) {
1371    sp<MetaData> meta = getFormatMeta(audio);
1372
1373    if (meta == NULL) {
1374        return NULL;
1375    }
1376
1377    sp<AMessage> msg = new AMessage;
1378
1379    if(convertMetaDataToMessage(meta, &msg) == OK) {
1380        return msg;
1381    }
1382    return NULL;
1383}
1384
1385status_t NuPlayer::setVideoScalingMode(int32_t mode) {
1386    mVideoScalingMode = mode;
1387    if (mNativeWindow != NULL) {
1388        status_t ret = native_window_set_scaling_mode(
1389                mNativeWindow->getNativeWindow().get(), mVideoScalingMode);
1390        if (ret != OK) {
1391            ALOGE("Failed to set scaling mode (%d): %s",
1392                -ret, strerror(-ret));
1393            return ret;
1394        }
1395    }
1396    return OK;
1397}
1398
1399status_t NuPlayer::getTrackInfo(Parcel* reply) const {
1400    sp<AMessage> msg = new AMessage(kWhatGetTrackInfo, id());
1401    msg->setPointer("reply", reply);
1402
1403    sp<AMessage> response;
1404    status_t err = msg->postAndAwaitResponse(&response);
1405    return err;
1406}
1407
1408status_t NuPlayer::selectTrack(size_t trackIndex, bool select) {
1409    sp<AMessage> msg = new AMessage(kWhatSelectTrack, id());
1410    msg->setSize("trackIndex", trackIndex);
1411    msg->setInt32("select", select);
1412
1413    sp<AMessage> response;
1414    status_t err = msg->postAndAwaitResponse(&response);
1415
1416    if (err != OK) {
1417        return err;
1418    }
1419
1420    if (!response->findInt32("err", &err)) {
1421        err = OK;
1422    }
1423
1424    return err;
1425}
1426
1427void NuPlayer::schedulePollDuration() {
1428    sp<AMessage> msg = new AMessage(kWhatPollDuration, id());
1429    msg->setInt32("generation", mPollDurationGeneration);
1430    msg->post();
1431}
1432
1433void NuPlayer::cancelPollDuration() {
1434    ++mPollDurationGeneration;
1435}
1436
1437void NuPlayer::processDeferredActions() {
1438    while (!mDeferredActions.empty()) {
1439        // We won't execute any deferred actions until we're no longer in
1440        // an intermediate state, i.e. one more more decoders are currently
1441        // flushing or shutting down.
1442
1443        if (mRenderer != NULL) {
1444            // There's an edge case where the renderer owns all output
1445            // buffers and is paused, therefore the decoder will not read
1446            // more input data and will never encounter the matching
1447            // discontinuity. To avoid this, we resume the renderer.
1448
1449            if (mFlushingAudio == AWAITING_DISCONTINUITY
1450                    || mFlushingVideo == AWAITING_DISCONTINUITY) {
1451                mRenderer->resume();
1452            }
1453        }
1454
1455        if (mFlushingAudio != NONE || mFlushingVideo != NONE) {
1456            // We're currently flushing, postpone the reset until that's
1457            // completed.
1458
1459            ALOGV("postponing action mFlushingAudio=%d, mFlushingVideo=%d",
1460                  mFlushingAudio, mFlushingVideo);
1461
1462            break;
1463        }
1464
1465        sp<Action> action = *mDeferredActions.begin();
1466        mDeferredActions.erase(mDeferredActions.begin());
1467
1468        action->execute(this);
1469    }
1470}
1471
1472void NuPlayer::performSeek(int64_t seekTimeUs) {
1473    ALOGV("performSeek seekTimeUs=%lld us (%.2f secs)",
1474          seekTimeUs,
1475          seekTimeUs / 1E6);
1476
1477    mSource->seekTo(seekTimeUs);
1478
1479    if (mDriver != NULL) {
1480        sp<NuPlayerDriver> driver = mDriver.promote();
1481        if (driver != NULL) {
1482            driver->notifyPosition(seekTimeUs);
1483            driver->notifySeekComplete();
1484        }
1485    }
1486
1487    // everything's flushed, continue playback.
1488}
1489
1490void NuPlayer::performDecoderFlush() {
1491    ALOGV("performDecoderFlush");
1492
1493    if (mAudioDecoder == NULL && mVideoDecoder == NULL) {
1494        return;
1495    }
1496
1497    mTimeDiscontinuityPending = true;
1498
1499    if (mAudioDecoder != NULL) {
1500        flushDecoder(true /* audio */, false /* needShutdown */);
1501    }
1502
1503    if (mVideoDecoder != NULL) {
1504        flushDecoder(false /* audio */, false /* needShutdown */);
1505    }
1506}
1507
1508void NuPlayer::performDecoderShutdown(bool audio, bool video) {
1509    ALOGV("performDecoderShutdown audio=%d, video=%d", audio, video);
1510
1511    if ((!audio || mAudioDecoder == NULL)
1512            && (!video || mVideoDecoder == NULL)) {
1513        return;
1514    }
1515
1516    mTimeDiscontinuityPending = true;
1517
1518    if (mFlushingAudio == NONE && (!audio || mAudioDecoder == NULL)) {
1519        mFlushingAudio = FLUSHED;
1520    }
1521
1522    if (mFlushingVideo == NONE && (!video || mVideoDecoder == NULL)) {
1523        mFlushingVideo = FLUSHED;
1524    }
1525
1526    if (audio && mAudioDecoder != NULL) {
1527        flushDecoder(true /* audio */, true /* needShutdown */);
1528    }
1529
1530    if (video && mVideoDecoder != NULL) {
1531        flushDecoder(false /* audio */, true /* needShutdown */);
1532    }
1533}
1534
1535void NuPlayer::performReset() {
1536    ALOGV("performReset");
1537
1538    CHECK(mAudioDecoder == NULL);
1539    CHECK(mVideoDecoder == NULL);
1540
1541    cancelPollDuration();
1542
1543    ++mScanSourcesGeneration;
1544    mScanSourcesPending = false;
1545
1546    if (mRendererLooper != NULL) {
1547        if (mRenderer != NULL) {
1548            mRendererLooper->unregisterHandler(mRenderer->id());
1549        }
1550        mRendererLooper->stop();
1551        mRendererLooper.clear();
1552    }
1553    mRenderer.clear();
1554
1555    if (mSource != NULL) {
1556        mSource->stop();
1557
1558        looper()->unregisterHandler(mSource->id());
1559
1560        mSource.clear();
1561    }
1562
1563    if (mDriver != NULL) {
1564        sp<NuPlayerDriver> driver = mDriver.promote();
1565        if (driver != NULL) {
1566            driver->notifyResetComplete();
1567        }
1568    }
1569
1570    mStarted = false;
1571}
1572
1573void NuPlayer::performScanSources() {
1574    ALOGV("performScanSources");
1575
1576    if (!mStarted) {
1577        return;
1578    }
1579
1580    if (mAudioDecoder == NULL || mVideoDecoder == NULL) {
1581        postScanSources();
1582    }
1583}
1584
1585void NuPlayer::performSetSurface(const sp<NativeWindowWrapper> &wrapper) {
1586    ALOGV("performSetSurface");
1587
1588    mNativeWindow = wrapper;
1589
1590    // XXX - ignore error from setVideoScalingMode for now
1591    setVideoScalingMode(mVideoScalingMode);
1592
1593    if (mDriver != NULL) {
1594        sp<NuPlayerDriver> driver = mDriver.promote();
1595        if (driver != NULL) {
1596            driver->notifySetSurfaceComplete();
1597        }
1598    }
1599}
1600
1601void NuPlayer::onSourceNotify(const sp<AMessage> &msg) {
1602    int32_t what;
1603    CHECK(msg->findInt32("what", &what));
1604
1605    switch (what) {
1606        case Source::kWhatPrepared:
1607        {
1608            if (mSource == NULL) {
1609                // This is a stale notification from a source that was
1610                // asynchronously preparing when the client called reset().
1611                // We handled the reset, the source is gone.
1612                break;
1613            }
1614
1615            int32_t err;
1616            CHECK(msg->findInt32("err", &err));
1617
1618            sp<NuPlayerDriver> driver = mDriver.promote();
1619            if (driver != NULL) {
1620                // notify duration first, so that it's definitely set when
1621                // the app received the "prepare complete" callback.
1622                int64_t durationUs;
1623                if (mSource->getDuration(&durationUs) == OK) {
1624                    driver->notifyDuration(durationUs);
1625                }
1626                driver->notifyPrepareCompleted(err);
1627            }
1628
1629            break;
1630        }
1631
1632        case Source::kWhatFlagsChanged:
1633        {
1634            uint32_t flags;
1635            CHECK(msg->findInt32("flags", (int32_t *)&flags));
1636
1637            sp<NuPlayerDriver> driver = mDriver.promote();
1638            if (driver != NULL) {
1639                driver->notifyFlagsChanged(flags);
1640            }
1641
1642            if ((mSourceFlags & Source::FLAG_DYNAMIC_DURATION)
1643                    && (!(flags & Source::FLAG_DYNAMIC_DURATION))) {
1644                cancelPollDuration();
1645            } else if (!(mSourceFlags & Source::FLAG_DYNAMIC_DURATION)
1646                    && (flags & Source::FLAG_DYNAMIC_DURATION)
1647                    && (mAudioDecoder != NULL || mVideoDecoder != NULL)) {
1648                schedulePollDuration();
1649            }
1650
1651            mSourceFlags = flags;
1652            break;
1653        }
1654
1655        case Source::kWhatVideoSizeChanged:
1656        {
1657            int32_t width, height;
1658            CHECK(msg->findInt32("width", &width));
1659            CHECK(msg->findInt32("height", &height));
1660
1661            notifyListener(MEDIA_SET_VIDEO_SIZE, width, height);
1662            break;
1663        }
1664
1665        case Source::kWhatBufferingStart:
1666        {
1667            notifyListener(MEDIA_INFO, MEDIA_INFO_BUFFERING_START, 0);
1668            break;
1669        }
1670
1671        case Source::kWhatBufferingEnd:
1672        {
1673            notifyListener(MEDIA_INFO, MEDIA_INFO_BUFFERING_END, 0);
1674            break;
1675        }
1676
1677        case Source::kWhatSubtitleData:
1678        {
1679            sp<ABuffer> buffer;
1680            CHECK(msg->findBuffer("buffer", &buffer));
1681
1682            sendSubtitleData(buffer, 0 /* baseIndex */);
1683            break;
1684        }
1685
1686        case Source::kWhatQueueDecoderShutdown:
1687        {
1688            int32_t audio, video;
1689            CHECK(msg->findInt32("audio", &audio));
1690            CHECK(msg->findInt32("video", &video));
1691
1692            sp<AMessage> reply;
1693            CHECK(msg->findMessage("reply", &reply));
1694
1695            queueDecoderShutdown(audio, video, reply);
1696            break;
1697        }
1698
1699        default:
1700            TRESPASS();
1701    }
1702}
1703
1704void NuPlayer::onClosedCaptionNotify(const sp<AMessage> &msg) {
1705    int32_t what;
1706    CHECK(msg->findInt32("what", &what));
1707
1708    switch (what) {
1709        case NuPlayer::CCDecoder::kWhatClosedCaptionData:
1710        {
1711            sp<ABuffer> buffer;
1712            CHECK(msg->findBuffer("buffer", &buffer));
1713
1714            size_t inbandTracks = 0;
1715            if (mSource != NULL) {
1716                inbandTracks = mSource->getTrackCount();
1717            }
1718
1719            sendSubtitleData(buffer, inbandTracks);
1720            break;
1721        }
1722
1723        case NuPlayer::CCDecoder::kWhatTrackAdded:
1724        {
1725            notifyListener(MEDIA_INFO, MEDIA_INFO_METADATA_UPDATE, 0);
1726
1727            break;
1728        }
1729
1730        default:
1731            TRESPASS();
1732    }
1733
1734
1735}
1736
1737void NuPlayer::sendSubtitleData(const sp<ABuffer> &buffer, int32_t baseIndex) {
1738    int32_t trackIndex;
1739    int64_t timeUs, durationUs;
1740    CHECK(buffer->meta()->findInt32("trackIndex", &trackIndex));
1741    CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
1742    CHECK(buffer->meta()->findInt64("durationUs", &durationUs));
1743
1744    Parcel in;
1745    in.writeInt32(trackIndex + baseIndex);
1746    in.writeInt64(timeUs);
1747    in.writeInt64(durationUs);
1748    in.writeInt32(buffer->size());
1749    in.writeInt32(buffer->size());
1750    in.write(buffer->data(), buffer->size());
1751
1752    notifyListener(MEDIA_SUBTITLE_DATA, 0, 0, &in);
1753}
1754////////////////////////////////////////////////////////////////////////////////
1755
1756void NuPlayer::Source::notifyFlagsChanged(uint32_t flags) {
1757    sp<AMessage> notify = dupNotify();
1758    notify->setInt32("what", kWhatFlagsChanged);
1759    notify->setInt32("flags", flags);
1760    notify->post();
1761}
1762
1763void NuPlayer::Source::notifyVideoSizeChanged(int32_t width, int32_t height) {
1764    sp<AMessage> notify = dupNotify();
1765    notify->setInt32("what", kWhatVideoSizeChanged);
1766    notify->setInt32("width", width);
1767    notify->setInt32("height", height);
1768    notify->post();
1769}
1770
1771void NuPlayer::Source::notifyPrepared(status_t err) {
1772    sp<AMessage> notify = dupNotify();
1773    notify->setInt32("what", kWhatPrepared);
1774    notify->setInt32("err", err);
1775    notify->post();
1776}
1777
1778void NuPlayer::Source::onMessageReceived(const sp<AMessage> & /* msg */) {
1779    TRESPASS();
1780}
1781
1782void NuPlayer::queueDecoderShutdown(
1783        bool audio, bool video, const sp<AMessage> &reply) {
1784    ALOGI("queueDecoderShutdown audio=%d, video=%d", audio, video);
1785
1786    mDeferredActions.push_back(
1787            new ShutdownDecoderAction(audio, video));
1788
1789    mDeferredActions.push_back(
1790            new SimpleAction(&NuPlayer::performScanSources));
1791
1792    mDeferredActions.push_back(new PostMessageAction(reply));
1793
1794    processDeferredActions();
1795}
1796
1797}  // namespace android
1798