NuPlayer.cpp revision ec3c71ed320e5e2252a84aa8b35ac4b9a6f92712 
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        mSourceFlags |= Source::FLAG_SECURE;
231    } else {
232        source = new GenericSource(notify, httpService, url, headers);
233    }
234
235    msg->setObject("source", source);
236    msg->post();
237}
238
239void NuPlayer::setDataSourceAsync(int fd, int64_t offset, int64_t length) {
240    sp<AMessage> msg = new AMessage(kWhatSetDataSource, id());
241
242    sp<AMessage> notify = new AMessage(kWhatSourceNotify, id());
243
244    sp<Source> source = new GenericSource(notify, fd, offset, length);
245    msg->setObject("source", source);
246    msg->post();
247}
248
249void NuPlayer::prepareAsync() {
250    (new AMessage(kWhatPrepare, id()))->post();
251}
252
253void NuPlayer::setVideoSurfaceTextureAsync(
254        const sp<IGraphicBufferProducer> &bufferProducer) {
255    sp<AMessage> msg = new AMessage(kWhatSetVideoNativeWindow, id());
256
257    if (bufferProducer == NULL) {
258        msg->setObject("native-window", NULL);
259    } else {
260        msg->setObject(
261                "native-window",
262                new NativeWindowWrapper(
263                    new Surface(bufferProducer)));
264    }
265
266    msg->post();
267}
268
269void NuPlayer::setAudioSink(const sp<MediaPlayerBase::AudioSink> &sink) {
270    sp<AMessage> msg = new AMessage(kWhatSetAudioSink, id());
271    msg->setObject("sink", sink);
272    msg->post();
273}
274
275void NuPlayer::start() {
276    (new AMessage(kWhatStart, id()))->post();
277}
278
279void NuPlayer::pause() {
280    (new AMessage(kWhatPause, id()))->post();
281}
282
283void NuPlayer::resume() {
284    (new AMessage(kWhatResume, id()))->post();
285}
286
287void NuPlayer::resetAsync() {
288    (new AMessage(kWhatReset, id()))->post();
289}
290
291void NuPlayer::seekToAsync(int64_t seekTimeUs) {
292    sp<AMessage> msg = new AMessage(kWhatSeek, id());
293    msg->setInt64("seekTimeUs", seekTimeUs);
294    msg->post();
295}
296
297// static
298bool NuPlayer::IsFlushingState(FlushStatus state, bool *needShutdown) {
299    switch (state) {
300        case FLUSHING_DECODER:
301            if (needShutdown != NULL) {
302                *needShutdown = false;
303            }
304            return true;
305
306        case FLUSHING_DECODER_SHUTDOWN:
307            if (needShutdown != NULL) {
308                *needShutdown = true;
309            }
310            return true;
311
312        default:
313            return false;
314    }
315}
316
317void NuPlayer::writeTrackInfo(
318        Parcel* reply, const sp<AMessage> format) const {
319    int32_t trackType;
320    CHECK(format->findInt32("type", &trackType));
321
322    AString lang;
323    CHECK(format->findString("language", &lang));
324
325    reply->writeInt32(2); // write something non-zero
326    reply->writeInt32(trackType);
327    reply->writeString16(String16(lang.c_str()));
328
329    if (trackType == MEDIA_TRACK_TYPE_SUBTITLE) {
330        AString mime;
331        CHECK(format->findString("mime", &mime));
332
333        int32_t isAuto, isDefault, isForced;
334        CHECK(format->findInt32("auto", &isAuto));
335        CHECK(format->findInt32("default", &isDefault));
336        CHECK(format->findInt32("forced", &isForced));
337
338        reply->writeString16(String16(mime.c_str()));
339        reply->writeInt32(isAuto);
340        reply->writeInt32(isDefault);
341        reply->writeInt32(isForced);
342    }
343}
344
345void NuPlayer::onMessageReceived(const sp<AMessage> &msg) {
346    switch (msg->what()) {
347        case kWhatSetDataSource:
348        {
349            ALOGV("kWhatSetDataSource");
350
351            CHECK(mSource == NULL);
352
353            sp<RefBase> obj;
354            CHECK(msg->findObject("source", &obj));
355
356            mSource = static_cast<Source *>(obj.get());
357
358            looper()->registerHandler(mSource);
359
360            CHECK(mDriver != NULL);
361            sp<NuPlayerDriver> driver = mDriver.promote();
362            if (driver != NULL) {
363                driver->notifySetDataSourceCompleted(OK);
364            }
365            break;
366        }
367
368        case kWhatPrepare:
369        {
370            mSource->prepareAsync();
371            break;
372        }
373
374        case kWhatGetTrackInfo:
375        {
376            uint32_t replyID;
377            CHECK(msg->senderAwaitsResponse(&replyID));
378
379            Parcel* reply;
380            CHECK(msg->findPointer("reply", (void**)&reply));
381
382            size_t inbandTracks = 0;
383            if (mSource != NULL) {
384                inbandTracks = mSource->getTrackCount();
385            }
386
387            size_t ccTracks = 0;
388            if (mCCDecoder != NULL) {
389                ccTracks = mCCDecoder->getTrackCount();
390            }
391
392            // total track count
393            reply->writeInt32(inbandTracks + ccTracks);
394
395            // write inband tracks
396            for (size_t i = 0; i < inbandTracks; ++i) {
397                writeTrackInfo(reply, mSource->getTrackInfo(i));
398            }
399
400            // write CC track
401            for (size_t i = 0; i < ccTracks; ++i) {
402                writeTrackInfo(reply, mCCDecoder->getTrackInfo(i));
403            }
404
405            sp<AMessage> response = new AMessage;
406            response->postReply(replyID);
407            break;
408        }
409
410        case kWhatSelectTrack:
411        {
412            uint32_t replyID;
413            CHECK(msg->senderAwaitsResponse(&replyID));
414
415            size_t trackIndex;
416            int32_t select;
417            CHECK(msg->findSize("trackIndex", &trackIndex));
418            CHECK(msg->findInt32("select", &select));
419
420            status_t err = INVALID_OPERATION;
421
422            size_t inbandTracks = 0;
423            if (mSource != NULL) {
424                inbandTracks = mSource->getTrackCount();
425            }
426            size_t ccTracks = 0;
427            if (mCCDecoder != NULL) {
428                ccTracks = mCCDecoder->getTrackCount();
429            }
430
431            if (trackIndex < inbandTracks) {
432                err = mSource->selectTrack(trackIndex, select);
433
434                if (!select && err == OK) {
435                    int32_t type;
436                    sp<AMessage> info = mSource->getTrackInfo(trackIndex);
437                    if (info != NULL
438                            && info->findInt32("type", &type)
439                            && type == MEDIA_TRACK_TYPE_TIMEDTEXT) {
440                        ++mTimedTextGeneration;
441                    }
442                }
443            } else {
444                trackIndex -= inbandTracks;
445
446                if (trackIndex < ccTracks) {
447                    err = mCCDecoder->selectTrack(trackIndex, select);
448                }
449            }
450
451            sp<AMessage> response = new AMessage;
452            response->setInt32("err", err);
453
454            response->postReply(replyID);
455            break;
456        }
457
458        case kWhatPollDuration:
459        {
460            int32_t generation;
461            CHECK(msg->findInt32("generation", &generation));
462
463            if (generation != mPollDurationGeneration) {
464                // stale
465                break;
466            }
467
468            int64_t durationUs;
469            if (mDriver != NULL && mSource->getDuration(&durationUs) == OK) {
470                sp<NuPlayerDriver> driver = mDriver.promote();
471                if (driver != NULL) {
472                    driver->notifyDuration(durationUs);
473                }
474            }
475
476            msg->post(1000000ll);  // poll again in a second.
477            break;
478        }
479
480        case kWhatSetVideoNativeWindow:
481        {
482            ALOGV("kWhatSetVideoNativeWindow");
483
484            mDeferredActions.push_back(
485                    new ShutdownDecoderAction(
486                        false /* audio */, true /* video */));
487
488            sp<RefBase> obj;
489            CHECK(msg->findObject("native-window", &obj));
490
491            mDeferredActions.push_back(
492                    new SetSurfaceAction(
493                        static_cast<NativeWindowWrapper *>(obj.get())));
494
495            if (obj != NULL) {
496                // If there is a new surface texture, instantiate decoders
497                // again if possible.
498                mDeferredActions.push_back(
499                        new SimpleAction(&NuPlayer::performScanSources));
500            }
501
502            processDeferredActions();
503            break;
504        }
505
506        case kWhatSetAudioSink:
507        {
508            ALOGV("kWhatSetAudioSink");
509
510            sp<RefBase> obj;
511            CHECK(msg->findObject("sink", &obj));
512
513            mAudioSink = static_cast<MediaPlayerBase::AudioSink *>(obj.get());
514            break;
515        }
516
517        case kWhatStart:
518        {
519            ALOGV("kWhatStart");
520
521            mVideoIsAVC = false;
522            mOffloadAudio = false;
523            mAudioEOS = false;
524            mVideoEOS = false;
525            mSkipRenderingAudioUntilMediaTimeUs = -1;
526            mSkipRenderingVideoUntilMediaTimeUs = -1;
527            mVideoLateByUs = 0;
528            mNumFramesTotal = 0;
529            mNumFramesDropped = 0;
530            mStarted = true;
531
532            /* instantiate decoders now for secure playback */
533            if (mSourceFlags & Source::FLAG_SECURE) {
534                if (mNativeWindow != NULL) {
535                    instantiateDecoder(false, &mVideoDecoder);
536                }
537
538                if (mAudioSink != NULL) {
539                    instantiateDecoder(true, &mAudioDecoder);
540                }
541            }
542
543            mSource->start();
544
545            uint32_t flags = 0;
546
547            if (mSource->isRealTime()) {
548                flags |= Renderer::FLAG_REAL_TIME;
549            }
550
551            sp<MetaData> audioMeta = mSource->getFormatMeta(true /* audio */);
552            audio_stream_type_t streamType = AUDIO_STREAM_MUSIC;
553            if (mAudioSink != NULL) {
554                streamType = mAudioSink->getAudioStreamType();
555            }
556
557            sp<AMessage> videoFormat = mSource->getFormat(false /* audio */);
558
559            mOffloadAudio =
560                canOffloadStream(audioMeta, (videoFormat != NULL),
561                                 true /* is_streaming */, streamType);
562            if (mOffloadAudio) {
563                flags |= Renderer::FLAG_OFFLOAD_AUDIO;
564            }
565
566            mRenderer = new Renderer(
567                    mAudioSink,
568                    new AMessage(kWhatRendererNotify, id()),
569                    flags);
570
571            mRendererLooper = new ALooper;
572            mRendererLooper->setName("NuPlayerRenderer");
573            mRendererLooper->start(false, false, ANDROID_PRIORITY_AUDIO);
574            mRendererLooper->registerHandler(mRenderer);
575
576            postScanSources();
577            break;
578        }
579
580        case kWhatScanSources:
581        {
582            int32_t generation;
583            CHECK(msg->findInt32("generation", &generation));
584            if (generation != mScanSourcesGeneration) {
585                // Drop obsolete msg.
586                break;
587            }
588
589            mScanSourcesPending = false;
590
591            ALOGV("scanning sources haveAudio=%d, haveVideo=%d",
592                 mAudioDecoder != NULL, mVideoDecoder != NULL);
593
594            bool mHadAnySourcesBefore =
595                (mAudioDecoder != NULL) || (mVideoDecoder != NULL);
596
597            if (mNativeWindow != NULL) {
598                instantiateDecoder(false, &mVideoDecoder);
599            }
600
601            if (mAudioSink != NULL) {
602                instantiateDecoder(true, &mAudioDecoder);
603            }
604
605            if (!mHadAnySourcesBefore
606                    && (mAudioDecoder != NULL || mVideoDecoder != NULL)) {
607                // This is the first time we've found anything playable.
608
609                if (mSourceFlags & Source::FLAG_DYNAMIC_DURATION) {
610                    schedulePollDuration();
611                }
612            }
613
614            status_t err;
615            if ((err = mSource->feedMoreTSData()) != OK) {
616                if (mAudioDecoder == NULL && mVideoDecoder == NULL) {
617                    // We're not currently decoding anything (no audio or
618                    // video tracks found) and we just ran out of input data.
619
620                    if (err == ERROR_END_OF_STREAM) {
621                        notifyListener(MEDIA_PLAYBACK_COMPLETE, 0, 0);
622                    } else {
623                        notifyListener(MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, err);
624                    }
625                }
626                break;
627            }
628
629            if ((mAudioDecoder == NULL && mAudioSink != NULL)
630                    || (mVideoDecoder == NULL && mNativeWindow != NULL)) {
631                msg->post(100000ll);
632                mScanSourcesPending = true;
633            }
634            break;
635        }
636
637        case kWhatVideoNotify:
638        case kWhatAudioNotify:
639        {
640            bool audio = msg->what() == kWhatAudioNotify;
641
642            int32_t what;
643            CHECK(msg->findInt32("what", &what));
644
645            if (what == Decoder::kWhatFillThisBuffer) {
646                status_t err = feedDecoderInputData(
647                        audio, msg);
648
649                if (err == -EWOULDBLOCK) {
650                    if (mSource->feedMoreTSData() == OK) {
651                        msg->post(10000ll);
652                    }
653                }
654            } else if (what == Decoder::kWhatEOS) {
655                int32_t err;
656                CHECK(msg->findInt32("err", &err));
657
658                if (err == ERROR_END_OF_STREAM) {
659                    ALOGV("got %s decoder EOS", audio ? "audio" : "video");
660                } else {
661                    ALOGV("got %s decoder EOS w/ error %d",
662                         audio ? "audio" : "video",
663                         err);
664                }
665
666                mRenderer->queueEOS(audio, err);
667            } else if (what == Decoder::kWhatFlushCompleted) {
668                bool needShutdown;
669
670                if (audio) {
671                    CHECK(IsFlushingState(mFlushingAudio, &needShutdown));
672                    mFlushingAudio = FLUSHED;
673                } else {
674                    CHECK(IsFlushingState(mFlushingVideo, &needShutdown));
675                    mFlushingVideo = FLUSHED;
676
677                    mVideoLateByUs = 0;
678                }
679
680                ALOGV("decoder %s flush completed", audio ? "audio" : "video");
681
682                if (needShutdown) {
683                    ALOGV("initiating %s decoder shutdown",
684                         audio ? "audio" : "video");
685
686                    (audio ? mAudioDecoder : mVideoDecoder)->initiateShutdown();
687
688                    if (audio) {
689                        mFlushingAudio = SHUTTING_DOWN_DECODER;
690                    } else {
691                        mFlushingVideo = SHUTTING_DOWN_DECODER;
692                    }
693                }
694
695                finishFlushIfPossible();
696            } else if (what == Decoder::kWhatOutputFormatChanged) {
697                sp<AMessage> format;
698                CHECK(msg->findMessage("format", &format));
699
700                if (audio) {
701                    int32_t numChannels;
702                    CHECK(format->findInt32(
703                                "channel-count", &numChannels));
704
705                    int32_t sampleRate;
706                    CHECK(format->findInt32("sample-rate", &sampleRate));
707
708                    ALOGV("Audio output format changed to %d Hz, %d channels",
709                         sampleRate, numChannels);
710
711                    mAudioSink->close();
712
713                    uint32_t flags;
714                    int64_t durationUs;
715                    // FIXME: we should handle the case where the video decoder
716                    // is created after we receive the format change indication.
717                    // Current code will just make that we select deep buffer
718                    // with video which should not be a problem as it should
719                    // not prevent from keeping A/V sync.
720                    if (mVideoDecoder == NULL &&
721                            mSource->getDuration(&durationUs) == OK &&
722                            durationUs
723                                > AUDIO_SINK_MIN_DEEP_BUFFER_DURATION_US) {
724                        flags = AUDIO_OUTPUT_FLAG_DEEP_BUFFER;
725                    } else {
726                        flags = AUDIO_OUTPUT_FLAG_NONE;
727                    }
728
729                    int32_t channelMask;
730                    if (!format->findInt32("channel-mask", &channelMask)) {
731                        channelMask = CHANNEL_MASK_USE_CHANNEL_ORDER;
732                    }
733
734                    if (mOffloadAudio) {
735                        audio_format_t audioFormat = AUDIO_FORMAT_PCM_16_BIT;
736                        audio_offload_info_t offloadInfo =
737                                AUDIO_INFO_INITIALIZER;
738
739                        AString mime;
740                        CHECK(format->findString("mime", &mime));
741
742                        status_t err =
743                            mapMimeToAudioFormat(audioFormat, mime.c_str());
744                        if (err != OK) {
745                            ALOGE("Couldn't map mime \"%s\" to a valid "
746                                    "audio_format", mime.c_str());
747                            mOffloadAudio = false;
748                        } else {
749                            ALOGV("Mime \"%s\" mapped to audio_format 0x%x",
750                                    mime.c_str(), audioFormat);
751
752                            flags |= AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD;
753
754                            offloadInfo.duration_us = -1;
755                            format->findInt64(
756                                    "durationUs", &offloadInfo.duration_us);
757
758                            int avgBitRate = -1;
759                            format->findInt32("bit-rate", &avgBitRate);
760
761                            offloadInfo.sample_rate = sampleRate;
762                            offloadInfo.channel_mask = channelMask;
763                            offloadInfo.format = audioFormat;
764                            offloadInfo.stream_type = AUDIO_STREAM_MUSIC;
765                            offloadInfo.bit_rate = avgBitRate;
766                            offloadInfo.has_video = (mVideoDecoder != NULL);
767                            offloadInfo.is_streaming = true;
768
769                            ALOGV("try to open AudioSink in offload mode");
770                            err = mAudioSink->open(
771                                    sampleRate,
772                                    numChannels,
773                                    (audio_channel_mask_t)channelMask,
774                                    audioFormat,
775                                    8 /* bufferCount */,
776                                    &NuPlayer::Renderer::AudioSinkCallback,
777                                    mRenderer.get(),
778                                    (audio_output_flags_t)flags,
779                                    &offloadInfo);
780
781                            if (err == OK) {
782                                // If the playback is offloaded to h/w, we pass
783                                // the HAL some metadata information.
784                                // We don't want to do this for PCM because it
785                                // will be going through the AudioFlinger mixer
786                                // before reaching the hardware.
787                                sp<MetaData> audioMeta =
788                                    mSource->getFormatMeta(true /* audio */);
789                                sendMetaDataToHal(mAudioSink, audioMeta);
790
791                                err = mAudioSink->start();
792                            }
793                        }
794
795                        if (err != OK) {
796                            // Clean up, fall back to non offload mode.
797                            mAudioSink->close();
798                            mAudioDecoder.clear();
799                            mRenderer->signalDisableOffloadAudio();
800                            mOffloadAudio = false;
801
802                            instantiateDecoder(
803                                    true /* audio */, &mAudioDecoder);
804                        }
805                    }
806
807                    if (!mOffloadAudio) {
808                        flags &= ~AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD;
809                        ALOGV("open AudioSink in NON-offload mode");
810                        CHECK_EQ(mAudioSink->open(
811                                    sampleRate,
812                                    numChannels,
813                                    (audio_channel_mask_t)channelMask,
814                                    AUDIO_FORMAT_PCM_16_BIT,
815                                    8 /* bufferCount */,
816                                    NULL,
817                                    NULL,
818                                    (audio_output_flags_t)flags),
819                                 (status_t)OK);
820                        mAudioSink->start();
821                    }
822
823                    mRenderer->signalAudioSinkChanged();
824                } else {
825                    // video
826
827                    int32_t width, height;
828                    CHECK(format->findInt32("width", &width));
829                    CHECK(format->findInt32("height", &height));
830
831                    int32_t cropLeft, cropTop, cropRight, cropBottom;
832                    CHECK(format->findRect(
833                                "crop",
834                                &cropLeft, &cropTop, &cropRight, &cropBottom));
835
836                    int32_t displayWidth = cropRight - cropLeft + 1;
837                    int32_t displayHeight = cropBottom - cropTop + 1;
838
839                    ALOGV("Video output format changed to %d x %d "
840                         "(crop: %d x %d @ (%d, %d))",
841                         width, height,
842                         displayWidth,
843                         displayHeight,
844                         cropLeft, cropTop);
845
846                    sp<AMessage> videoInputFormat =
847                        mSource->getFormat(false /* audio */);
848
849                    // Take into account sample aspect ratio if necessary:
850                    int32_t sarWidth, sarHeight;
851                    if (videoInputFormat->findInt32("sar-width", &sarWidth)
852                            && videoInputFormat->findInt32(
853                                "sar-height", &sarHeight)) {
854                        ALOGV("Sample aspect ratio %d : %d",
855                              sarWidth, sarHeight);
856
857                        displayWidth = (displayWidth * sarWidth) / sarHeight;
858
859                        ALOGV("display dimensions %d x %d",
860                              displayWidth, displayHeight);
861                    }
862
863                    notifyListener(
864                            MEDIA_SET_VIDEO_SIZE, displayWidth, displayHeight);
865                }
866            } else if (what == Decoder::kWhatShutdownCompleted) {
867                ALOGV("%s shutdown completed", audio ? "audio" : "video");
868                if (audio) {
869                    mAudioDecoder.clear();
870
871                    CHECK_EQ((int)mFlushingAudio, (int)SHUTTING_DOWN_DECODER);
872                    mFlushingAudio = SHUT_DOWN;
873                } else {
874                    mVideoDecoder.clear();
875
876                    CHECK_EQ((int)mFlushingVideo, (int)SHUTTING_DOWN_DECODER);
877                    mFlushingVideo = SHUT_DOWN;
878                }
879
880                finishFlushIfPossible();
881            } else if (what == Decoder::kWhatError) {
882                ALOGE("Received error from %s decoder, aborting playback.",
883                     audio ? "audio" : "video");
884
885                mRenderer->queueEOS(audio, UNKNOWN_ERROR);
886            } else if (what == Decoder::kWhatDrainThisBuffer) {
887                renderBuffer(audio, msg);
888            } else {
889                ALOGV("Unhandled decoder notification %d '%c%c%c%c'.",
890                      what,
891                      what >> 24,
892                      (what >> 16) & 0xff,
893                      (what >> 8) & 0xff,
894                      what & 0xff);
895            }
896
897            break;
898        }
899
900        case kWhatRendererNotify:
901        {
902            int32_t what;
903            CHECK(msg->findInt32("what", &what));
904
905            if (what == Renderer::kWhatEOS) {
906                int32_t audio;
907                CHECK(msg->findInt32("audio", &audio));
908
909                int32_t finalResult;
910                CHECK(msg->findInt32("finalResult", &finalResult));
911
912                if (audio) {
913                    mAudioEOS = true;
914                } else {
915                    mVideoEOS = true;
916                }
917
918                if (finalResult == ERROR_END_OF_STREAM) {
919                    ALOGV("reached %s EOS", audio ? "audio" : "video");
920                } else {
921                    ALOGE("%s track encountered an error (%d)",
922                         audio ? "audio" : "video", finalResult);
923
924                    notifyListener(
925                            MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, finalResult);
926                }
927
928                if ((mAudioEOS || mAudioDecoder == NULL)
929                        && (mVideoEOS || mVideoDecoder == NULL)) {
930                    notifyListener(MEDIA_PLAYBACK_COMPLETE, 0, 0);
931                }
932            } else if (what == Renderer::kWhatPosition) {
933                int64_t positionUs;
934                CHECK(msg->findInt64("positionUs", &positionUs));
935
936                CHECK(msg->findInt64("videoLateByUs", &mVideoLateByUs));
937
938                if (mDriver != NULL) {
939                    sp<NuPlayerDriver> driver = mDriver.promote();
940                    if (driver != NULL) {
941                        driver->notifyPosition(positionUs);
942
943                        driver->notifyFrameStats(
944                                mNumFramesTotal, mNumFramesDropped);
945                    }
946                }
947            } else if (what == Renderer::kWhatFlushComplete) {
948                int32_t audio;
949                CHECK(msg->findInt32("audio", &audio));
950
951                ALOGV("renderer %s flush completed.", audio ? "audio" : "video");
952            } else if (what == Renderer::kWhatVideoRenderingStart) {
953                notifyListener(MEDIA_INFO, MEDIA_INFO_RENDERING_START, 0);
954            } else if (what == Renderer::kWhatMediaRenderingStart) {
955                ALOGV("media rendering started");
956                notifyListener(MEDIA_STARTED, 0, 0);
957            } else if (what == Renderer::kWhatAudioOffloadTearDown) {
958                ALOGV("Tear down audio offload, fall back to s/w path");
959                int64_t positionUs;
960                CHECK(msg->findInt64("positionUs", &positionUs));
961                mAudioSink->close();
962                mAudioDecoder.clear();
963                mRenderer->flush(true /* audio */);
964                if (mVideoDecoder != NULL) {
965                    mRenderer->flush(false /* audio */);
966                }
967                mRenderer->signalDisableOffloadAudio();
968                mOffloadAudio = false;
969
970                performSeek(positionUs);
971                instantiateDecoder(true /* audio */, &mAudioDecoder);
972            }
973            break;
974        }
975
976        case kWhatMoreDataQueued:
977        {
978            break;
979        }
980
981        case kWhatReset:
982        {
983            ALOGV("kWhatReset");
984
985            mDeferredActions.push_back(
986                    new ShutdownDecoderAction(
987                        true /* audio */, true /* video */));
988
989            mDeferredActions.push_back(
990                    new SimpleAction(&NuPlayer::performReset));
991
992            processDeferredActions();
993            break;
994        }
995
996        case kWhatSeek:
997        {
998            int64_t seekTimeUs;
999            CHECK(msg->findInt64("seekTimeUs", &seekTimeUs));
1000
1001            ALOGV("kWhatSeek seekTimeUs=%lld us", seekTimeUs);
1002
1003            mDeferredActions.push_back(
1004                    new SimpleAction(&NuPlayer::performDecoderFlush));
1005
1006            mDeferredActions.push_back(new SeekAction(seekTimeUs));
1007
1008            processDeferredActions();
1009            break;
1010        }
1011
1012        case kWhatPause:
1013        {
1014            CHECK(mRenderer != NULL);
1015            mSource->pause();
1016            mRenderer->pause();
1017            break;
1018        }
1019
1020        case kWhatResume:
1021        {
1022            CHECK(mRenderer != NULL);
1023            mSource->resume();
1024            mRenderer->resume();
1025            break;
1026        }
1027
1028        case kWhatSourceNotify:
1029        {
1030            onSourceNotify(msg);
1031            break;
1032        }
1033
1034        case kWhatClosedCaptionNotify:
1035        {
1036            onClosedCaptionNotify(msg);
1037            break;
1038        }
1039
1040        default:
1041            TRESPASS();
1042            break;
1043    }
1044}
1045
1046void NuPlayer::finishFlushIfPossible() {
1047    if (mFlushingAudio != FLUSHED && mFlushingAudio != SHUT_DOWN) {
1048        return;
1049    }
1050
1051    if (mFlushingVideo != FLUSHED && mFlushingVideo != SHUT_DOWN) {
1052        return;
1053    }
1054
1055    ALOGV("both audio and video are flushed now.");
1056
1057    if (mTimeDiscontinuityPending) {
1058        mRenderer->signalTimeDiscontinuity();
1059        mTimeDiscontinuityPending = false;
1060    }
1061
1062    if (mAudioDecoder != NULL) {
1063        mAudioDecoder->signalResume();
1064    }
1065
1066    if (mVideoDecoder != NULL) {
1067        mVideoDecoder->signalResume();
1068    }
1069
1070    mFlushingAudio = NONE;
1071    mFlushingVideo = NONE;
1072
1073    processDeferredActions();
1074}
1075
1076void NuPlayer::postScanSources() {
1077    if (mScanSourcesPending) {
1078        return;
1079    }
1080
1081    sp<AMessage> msg = new AMessage(kWhatScanSources, id());
1082    msg->setInt32("generation", mScanSourcesGeneration);
1083    msg->post();
1084
1085    mScanSourcesPending = true;
1086}
1087
1088status_t NuPlayer::instantiateDecoder(bool audio, sp<Decoder> *decoder) {
1089    if (*decoder != NULL) {
1090        return OK;
1091    }
1092
1093    sp<AMessage> format = mSource->getFormat(audio);
1094
1095    if (format == NULL) {
1096        return -EWOULDBLOCK;
1097    }
1098
1099    if (!audio) {
1100        AString mime;
1101        CHECK(format->findString("mime", &mime));
1102        mVideoIsAVC = !strcasecmp(MEDIA_MIMETYPE_VIDEO_AVC, mime.c_str());
1103
1104        sp<AMessage> ccNotify = new AMessage(kWhatClosedCaptionNotify, id());
1105        mCCDecoder = new CCDecoder(ccNotify);
1106
1107        if (mSourceFlags & Source::FLAG_SECURE) {
1108            format->setInt32("secure", true);
1109        }
1110    }
1111
1112    sp<AMessage> notify =
1113        new AMessage(audio ? kWhatAudioNotify : kWhatVideoNotify,
1114                     id());
1115
1116    if (audio) {
1117        if (mOffloadAudio) {
1118            *decoder = new DecoderPassThrough(notify);
1119        } else {
1120            *decoder = new Decoder(notify);
1121        }
1122    } else {
1123        *decoder = new Decoder(notify, mNativeWindow);
1124    }
1125    (*decoder)->init();
1126    (*decoder)->configure(format);
1127
1128    // allocate buffers to decrypt widevine source buffers
1129    if (!audio && (mSourceFlags & Source::FLAG_SECURE)) {
1130        Vector<sp<ABuffer> > inputBufs;
1131        CHECK_EQ((*decoder)->getInputBuffers(&inputBufs), (status_t)OK);
1132
1133        Vector<MediaBuffer *> mediaBufs;
1134        for (size_t i = 0; i < inputBufs.size(); i++) {
1135            const sp<ABuffer> &buffer = inputBufs[i];
1136            MediaBuffer *mbuf = new MediaBuffer(buffer->data(), buffer->size());
1137            mediaBufs.push(mbuf);
1138        }
1139
1140        status_t err = mSource->setBuffers(audio, mediaBufs);
1141        if (err != OK) {
1142            for (size_t i = 0; i < mediaBufs.size(); ++i) {
1143                mediaBufs[i]->release();
1144            }
1145            mediaBufs.clear();
1146            ALOGE("Secure source didn't support secure mediaBufs.");
1147            return err;
1148        }
1149    }
1150    return OK;
1151}
1152
1153status_t NuPlayer::feedDecoderInputData(bool audio, const sp<AMessage> &msg) {
1154    sp<AMessage> reply;
1155    CHECK(msg->findMessage("reply", &reply));
1156
1157    if ((audio && IsFlushingState(mFlushingAudio))
1158            || (!audio && IsFlushingState(mFlushingVideo))) {
1159        reply->setInt32("err", INFO_DISCONTINUITY);
1160        reply->post();
1161        return OK;
1162    }
1163
1164    sp<ABuffer> accessUnit;
1165
1166    bool dropAccessUnit;
1167    do {
1168        status_t err = mSource->dequeueAccessUnit(audio, &accessUnit);
1169
1170        if (err == -EWOULDBLOCK) {
1171            return err;
1172        } else if (err != OK) {
1173            if (err == INFO_DISCONTINUITY) {
1174                int32_t type;
1175                CHECK(accessUnit->meta()->findInt32("discontinuity", &type));
1176
1177                bool formatChange =
1178                    (audio &&
1179                     (type & ATSParser::DISCONTINUITY_AUDIO_FORMAT))
1180                    || (!audio &&
1181                            (type & ATSParser::DISCONTINUITY_VIDEO_FORMAT));
1182
1183                bool timeChange = (type & ATSParser::DISCONTINUITY_TIME) != 0;
1184
1185                ALOGI("%s discontinuity (formatChange=%d, time=%d)",
1186                     audio ? "audio" : "video", formatChange, timeChange);
1187
1188                if (audio) {
1189                    mSkipRenderingAudioUntilMediaTimeUs = -1;
1190                } else {
1191                    mSkipRenderingVideoUntilMediaTimeUs = -1;
1192                }
1193
1194                if (timeChange) {
1195                    sp<AMessage> extra;
1196                    if (accessUnit->meta()->findMessage("extra", &extra)
1197                            && extra != NULL) {
1198                        int64_t resumeAtMediaTimeUs;
1199                        if (extra->findInt64(
1200                                    "resume-at-mediatimeUs", &resumeAtMediaTimeUs)) {
1201                            ALOGI("suppressing rendering of %s until %lld us",
1202                                    audio ? "audio" : "video", resumeAtMediaTimeUs);
1203
1204                            if (audio) {
1205                                mSkipRenderingAudioUntilMediaTimeUs =
1206                                    resumeAtMediaTimeUs;
1207                            } else {
1208                                mSkipRenderingVideoUntilMediaTimeUs =
1209                                    resumeAtMediaTimeUs;
1210                            }
1211                        }
1212                    }
1213                }
1214
1215                mTimeDiscontinuityPending =
1216                    mTimeDiscontinuityPending || timeChange;
1217
1218                if (formatChange || timeChange) {
1219                    if (mFlushingAudio == NONE && mFlushingVideo == NONE) {
1220                        // And we'll resume scanning sources once we're done
1221                        // flushing.
1222                        mDeferredActions.push_front(
1223                                new SimpleAction(
1224                                    &NuPlayer::performScanSources));
1225                    }
1226
1227                    sp<AMessage> newFormat = mSource->getFormat(audio);
1228                    sp<Decoder> &decoder = audio ? mAudioDecoder : mVideoDecoder;
1229                    if (formatChange && !decoder->supportsSeamlessFormatChange(newFormat)) {
1230                        flushDecoder(audio, /* needShutdown = */ true);
1231                    } else {
1232                        flushDecoder(audio, /* needShutdown = */ false);
1233                        err = OK;
1234                    }
1235                } else {
1236                    // This stream is unaffected by the discontinuity
1237
1238                    if (audio) {
1239                        mFlushingAudio = FLUSHED;
1240                    } else {
1241                        mFlushingVideo = FLUSHED;
1242                    }
1243
1244                    finishFlushIfPossible();
1245
1246                    return -EWOULDBLOCK;
1247                }
1248            }
1249
1250            reply->setInt32("err", err);
1251            reply->post();
1252            return OK;
1253        }
1254
1255        if (!audio) {
1256            ++mNumFramesTotal;
1257        }
1258
1259        dropAccessUnit = false;
1260        if (!audio
1261                && !(mSourceFlags & Source::FLAG_SECURE)
1262                && mVideoLateByUs > 100000ll
1263                && mVideoIsAVC
1264                && !IsAVCReferenceFrame(accessUnit)) {
1265            dropAccessUnit = true;
1266            ++mNumFramesDropped;
1267        }
1268    } while (dropAccessUnit);
1269
1270    // ALOGV("returned a valid buffer of %s data", audio ? "audio" : "video");
1271
1272#if 0
1273    int64_t mediaTimeUs;
1274    CHECK(accessUnit->meta()->findInt64("timeUs", &mediaTimeUs));
1275    ALOGV("feeding %s input buffer at media time %.2f secs",
1276         audio ? "audio" : "video",
1277         mediaTimeUs / 1E6);
1278#endif
1279
1280    if (!audio) {
1281        mCCDecoder->decode(accessUnit);
1282    }
1283
1284    reply->setBuffer("buffer", accessUnit);
1285    reply->post();
1286
1287    return OK;
1288}
1289
1290void NuPlayer::renderBuffer(bool audio, const sp<AMessage> &msg) {
1291    // ALOGV("renderBuffer %s", audio ? "audio" : "video");
1292
1293    sp<AMessage> reply;
1294    CHECK(msg->findMessage("reply", &reply));
1295
1296    if (IsFlushingState(audio ? mFlushingAudio : mFlushingVideo)) {
1297        // We're currently attempting to flush the decoder, in order
1298        // to complete this, the decoder wants all its buffers back,
1299        // so we don't want any output buffers it sent us (from before
1300        // we initiated the flush) to be stuck in the renderer's queue.
1301
1302        ALOGV("we're still flushing the %s decoder, sending its output buffer"
1303             " right back.", audio ? "audio" : "video");
1304
1305        reply->post();
1306        return;
1307    }
1308
1309    sp<ABuffer> buffer;
1310    CHECK(msg->findBuffer("buffer", &buffer));
1311
1312    int64_t mediaTimeUs;
1313    CHECK(buffer->meta()->findInt64("timeUs", &mediaTimeUs));
1314
1315    int64_t &skipUntilMediaTimeUs =
1316        audio
1317            ? mSkipRenderingAudioUntilMediaTimeUs
1318            : mSkipRenderingVideoUntilMediaTimeUs;
1319
1320    if (skipUntilMediaTimeUs >= 0) {
1321
1322        if (mediaTimeUs < skipUntilMediaTimeUs) {
1323            ALOGV("dropping %s buffer at time %lld as requested.",
1324                 audio ? "audio" : "video",
1325                 mediaTimeUs);
1326
1327            reply->post();
1328            return;
1329        }
1330
1331        skipUntilMediaTimeUs = -1;
1332    }
1333
1334    if (!audio && mCCDecoder->isSelected()) {
1335        mCCDecoder->display(mediaTimeUs);
1336    }
1337
1338    mRenderer->queueBuffer(audio, buffer, reply);
1339}
1340
1341void NuPlayer::notifyListener(int msg, int ext1, int ext2, const Parcel *in) {
1342    if (mDriver == NULL) {
1343        return;
1344    }
1345
1346    sp<NuPlayerDriver> driver = mDriver.promote();
1347
1348    if (driver == NULL) {
1349        return;
1350    }
1351
1352    driver->notifyListener(msg, ext1, ext2, in);
1353}
1354
1355void NuPlayer::flushDecoder(bool audio, bool needShutdown) {
1356    ALOGV("[%s] flushDecoder needShutdown=%d",
1357          audio ? "audio" : "video", needShutdown);
1358
1359    if ((audio && mAudioDecoder == NULL) || (!audio && mVideoDecoder == NULL)) {
1360        ALOGI("flushDecoder %s without decoder present",
1361             audio ? "audio" : "video");
1362    }
1363
1364    // Make sure we don't continue to scan sources until we finish flushing.
1365    ++mScanSourcesGeneration;
1366    mScanSourcesPending = false;
1367
1368    (audio ? mAudioDecoder : mVideoDecoder)->signalFlush();
1369    mRenderer->flush(audio);
1370
1371    FlushStatus newStatus =
1372        needShutdown ? FLUSHING_DECODER_SHUTDOWN : FLUSHING_DECODER;
1373
1374    if (audio) {
1375        CHECK(mFlushingAudio == NONE
1376                || mFlushingAudio == AWAITING_DISCONTINUITY);
1377
1378        mFlushingAudio = newStatus;
1379
1380        if (mFlushingVideo == NONE) {
1381            mFlushingVideo = (mVideoDecoder != NULL)
1382                ? AWAITING_DISCONTINUITY
1383                : FLUSHED;
1384        }
1385    } else {
1386        CHECK(mFlushingVideo == NONE
1387                || mFlushingVideo == AWAITING_DISCONTINUITY);
1388
1389        mFlushingVideo = newStatus;
1390
1391        if (mFlushingAudio == NONE) {
1392            mFlushingAudio = (mAudioDecoder != NULL)
1393                ? AWAITING_DISCONTINUITY
1394                : FLUSHED;
1395        }
1396    }
1397}
1398
1399sp<AMessage> NuPlayer::Source::getFormat(bool audio) {
1400    sp<MetaData> meta = getFormatMeta(audio);
1401
1402    if (meta == NULL) {
1403        return NULL;
1404    }
1405
1406    sp<AMessage> msg = new AMessage;
1407
1408    if(convertMetaDataToMessage(meta, &msg) == OK) {
1409        return msg;
1410    }
1411    return NULL;
1412}
1413
1414status_t NuPlayer::setVideoScalingMode(int32_t mode) {
1415    mVideoScalingMode = mode;
1416    if (mNativeWindow != NULL) {
1417        status_t ret = native_window_set_scaling_mode(
1418                mNativeWindow->getNativeWindow().get(), mVideoScalingMode);
1419        if (ret != OK) {
1420            ALOGE("Failed to set scaling mode (%d): %s",
1421                -ret, strerror(-ret));
1422            return ret;
1423        }
1424    }
1425    return OK;
1426}
1427
1428status_t NuPlayer::getTrackInfo(Parcel* reply) const {
1429    sp<AMessage> msg = new AMessage(kWhatGetTrackInfo, id());
1430    msg->setPointer("reply", reply);
1431
1432    sp<AMessage> response;
1433    status_t err = msg->postAndAwaitResponse(&response);
1434    return err;
1435}
1436
1437status_t NuPlayer::selectTrack(size_t trackIndex, bool select) {
1438    sp<AMessage> msg = new AMessage(kWhatSelectTrack, id());
1439    msg->setSize("trackIndex", trackIndex);
1440    msg->setInt32("select", select);
1441
1442    sp<AMessage> response;
1443    status_t err = msg->postAndAwaitResponse(&response);
1444
1445    if (err != OK) {
1446        return err;
1447    }
1448
1449    if (!response->findInt32("err", &err)) {
1450        err = OK;
1451    }
1452
1453    return err;
1454}
1455
1456void NuPlayer::schedulePollDuration() {
1457    sp<AMessage> msg = new AMessage(kWhatPollDuration, id());
1458    msg->setInt32("generation", mPollDurationGeneration);
1459    msg->post();
1460}
1461
1462void NuPlayer::cancelPollDuration() {
1463    ++mPollDurationGeneration;
1464}
1465
1466void NuPlayer::processDeferredActions() {
1467    while (!mDeferredActions.empty()) {
1468        // We won't execute any deferred actions until we're no longer in
1469        // an intermediate state, i.e. one more more decoders are currently
1470        // flushing or shutting down.
1471
1472        if (mRenderer != NULL) {
1473            // There's an edge case where the renderer owns all output
1474            // buffers and is paused, therefore the decoder will not read
1475            // more input data and will never encounter the matching
1476            // discontinuity. To avoid this, we resume the renderer.
1477
1478            if (mFlushingAudio == AWAITING_DISCONTINUITY
1479                    || mFlushingVideo == AWAITING_DISCONTINUITY) {
1480                mRenderer->resume();
1481            }
1482        }
1483
1484        if (mFlushingAudio != NONE || mFlushingVideo != NONE) {
1485            // We're currently flushing, postpone the reset until that's
1486            // completed.
1487
1488            ALOGV("postponing action mFlushingAudio=%d, mFlushingVideo=%d",
1489                  mFlushingAudio, mFlushingVideo);
1490
1491            break;
1492        }
1493
1494        sp<Action> action = *mDeferredActions.begin();
1495        mDeferredActions.erase(mDeferredActions.begin());
1496
1497        action->execute(this);
1498    }
1499}
1500
1501void NuPlayer::performSeek(int64_t seekTimeUs) {
1502    ALOGV("performSeek seekTimeUs=%lld us (%.2f secs)",
1503          seekTimeUs,
1504          seekTimeUs / 1E6);
1505
1506    mSource->seekTo(seekTimeUs);
1507    ++mTimedTextGeneration;
1508
1509    if (mDriver != NULL) {
1510        sp<NuPlayerDriver> driver = mDriver.promote();
1511        if (driver != NULL) {
1512            driver->notifyPosition(seekTimeUs);
1513            driver->notifySeekComplete();
1514        }
1515    }
1516
1517    // everything's flushed, continue playback.
1518}
1519
1520void NuPlayer::performDecoderFlush() {
1521    ALOGV("performDecoderFlush");
1522
1523    if (mAudioDecoder == NULL && mVideoDecoder == NULL) {
1524        return;
1525    }
1526
1527    mTimeDiscontinuityPending = true;
1528
1529    if (mAudioDecoder != NULL) {
1530        flushDecoder(true /* audio */, false /* needShutdown */);
1531    }
1532
1533    if (mVideoDecoder != NULL) {
1534        flushDecoder(false /* audio */, false /* needShutdown */);
1535    }
1536}
1537
1538void NuPlayer::performDecoderShutdown(bool audio, bool video) {
1539    ALOGV("performDecoderShutdown audio=%d, video=%d", audio, video);
1540
1541    if ((!audio || mAudioDecoder == NULL)
1542            && (!video || mVideoDecoder == NULL)) {
1543        return;
1544    }
1545
1546    mTimeDiscontinuityPending = true;
1547
1548    if (mFlushingAudio == NONE && (!audio || mAudioDecoder == NULL)) {
1549        mFlushingAudio = FLUSHED;
1550    }
1551
1552    if (mFlushingVideo == NONE && (!video || mVideoDecoder == NULL)) {
1553        mFlushingVideo = FLUSHED;
1554    }
1555
1556    if (audio && mAudioDecoder != NULL) {
1557        flushDecoder(true /* audio */, true /* needShutdown */);
1558    }
1559
1560    if (video && mVideoDecoder != NULL) {
1561        flushDecoder(false /* audio */, true /* needShutdown */);
1562    }
1563}
1564
1565void NuPlayer::performReset() {
1566    ALOGV("performReset");
1567
1568    CHECK(mAudioDecoder == NULL);
1569    CHECK(mVideoDecoder == NULL);
1570
1571    cancelPollDuration();
1572
1573    ++mScanSourcesGeneration;
1574    mScanSourcesPending = false;
1575
1576    if (mRendererLooper != NULL) {
1577        if (mRenderer != NULL) {
1578            mRendererLooper->unregisterHandler(mRenderer->id());
1579        }
1580        mRendererLooper->stop();
1581        mRendererLooper.clear();
1582    }
1583    mRenderer.clear();
1584
1585    if (mSource != NULL) {
1586        mSource->stop();
1587
1588        looper()->unregisterHandler(mSource->id());
1589
1590        mSource.clear();
1591    }
1592
1593    if (mDriver != NULL) {
1594        sp<NuPlayerDriver> driver = mDriver.promote();
1595        if (driver != NULL) {
1596            driver->notifyResetComplete();
1597        }
1598    }
1599
1600    mStarted = false;
1601}
1602
1603void NuPlayer::performScanSources() {
1604    ALOGV("performScanSources");
1605
1606    if (!mStarted) {
1607        return;
1608    }
1609
1610    if (mAudioDecoder == NULL || mVideoDecoder == NULL) {
1611        postScanSources();
1612    }
1613}
1614
1615void NuPlayer::performSetSurface(const sp<NativeWindowWrapper> &wrapper) {
1616    ALOGV("performSetSurface");
1617
1618    mNativeWindow = wrapper;
1619
1620    // XXX - ignore error from setVideoScalingMode for now
1621    setVideoScalingMode(mVideoScalingMode);
1622
1623    if (mDriver != NULL) {
1624        sp<NuPlayerDriver> driver = mDriver.promote();
1625        if (driver != NULL) {
1626            driver->notifySetSurfaceComplete();
1627        }
1628    }
1629}
1630
1631void NuPlayer::onSourceNotify(const sp<AMessage> &msg) {
1632    int32_t what;
1633    CHECK(msg->findInt32("what", &what));
1634
1635    switch (what) {
1636        case Source::kWhatPrepared:
1637        {
1638            if (mSource == NULL) {
1639                // This is a stale notification from a source that was
1640                // asynchronously preparing when the client called reset().
1641                // We handled the reset, the source is gone.
1642                break;
1643            }
1644
1645            int32_t err;
1646            CHECK(msg->findInt32("err", &err));
1647
1648            sp<NuPlayerDriver> driver = mDriver.promote();
1649            if (driver != NULL) {
1650                // notify duration first, so that it's definitely set when
1651                // the app received the "prepare complete" callback.
1652                int64_t durationUs;
1653                if (mSource->getDuration(&durationUs) == OK) {
1654                    driver->notifyDuration(durationUs);
1655                }
1656                driver->notifyPrepareCompleted(err);
1657            }
1658
1659            break;
1660        }
1661
1662        case Source::kWhatFlagsChanged:
1663        {
1664            uint32_t flags;
1665            CHECK(msg->findInt32("flags", (int32_t *)&flags));
1666
1667            sp<NuPlayerDriver> driver = mDriver.promote();
1668            if (driver != NULL) {
1669                driver->notifyFlagsChanged(flags);
1670            }
1671
1672            if ((mSourceFlags & Source::FLAG_DYNAMIC_DURATION)
1673                    && (!(flags & Source::FLAG_DYNAMIC_DURATION))) {
1674                cancelPollDuration();
1675            } else if (!(mSourceFlags & Source::FLAG_DYNAMIC_DURATION)
1676                    && (flags & Source::FLAG_DYNAMIC_DURATION)
1677                    && (mAudioDecoder != NULL || mVideoDecoder != NULL)) {
1678                schedulePollDuration();
1679            }
1680
1681            mSourceFlags = flags;
1682            break;
1683        }
1684
1685        case Source::kWhatVideoSizeChanged:
1686        {
1687            int32_t width, height;
1688            CHECK(msg->findInt32("width", &width));
1689            CHECK(msg->findInt32("height", &height));
1690
1691            notifyListener(MEDIA_SET_VIDEO_SIZE, width, height);
1692            break;
1693        }
1694
1695        case Source::kWhatBufferingStart:
1696        {
1697            notifyListener(MEDIA_INFO, MEDIA_INFO_BUFFERING_START, 0);
1698            break;
1699        }
1700
1701        case Source::kWhatBufferingEnd:
1702        {
1703            notifyListener(MEDIA_INFO, MEDIA_INFO_BUFFERING_END, 0);
1704            break;
1705        }
1706
1707        case Source::kWhatSubtitleData:
1708        {
1709            sp<ABuffer> buffer;
1710            CHECK(msg->findBuffer("buffer", &buffer));
1711
1712            sendSubtitleData(buffer, 0 /* baseIndex */);
1713            break;
1714        }
1715
1716        case Source::kWhatTimedTextData:
1717        {
1718            int32_t generation;
1719            if (msg->findInt32("generation", &generation)
1720                    && generation != mTimedTextGeneration) {
1721                break;
1722            }
1723
1724            sp<ABuffer> buffer;
1725            CHECK(msg->findBuffer("buffer", &buffer));
1726
1727            sp<NuPlayerDriver> driver = mDriver.promote();
1728            if (driver == NULL) {
1729                break;
1730            }
1731
1732            int posMs;
1733            int64_t timeUs, posUs;
1734            driver->getCurrentPosition(&posMs);
1735            posUs = posMs * 1000;
1736            CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
1737
1738            if (posUs < timeUs) {
1739                if (!msg->findInt32("generation", &generation)) {
1740                    msg->setInt32("generation", mTimedTextGeneration);
1741                }
1742                msg->post(timeUs - posUs);
1743            } else {
1744                sendTimedTextData(buffer);
1745            }
1746            break;
1747        }
1748
1749        case Source::kWhatQueueDecoderShutdown:
1750        {
1751            int32_t audio, video;
1752            CHECK(msg->findInt32("audio", &audio));
1753            CHECK(msg->findInt32("video", &video));
1754
1755            sp<AMessage> reply;
1756            CHECK(msg->findMessage("reply", &reply));
1757
1758            queueDecoderShutdown(audio, video, reply);
1759            break;
1760        }
1761
1762        default:
1763            TRESPASS();
1764    }
1765}
1766
1767void NuPlayer::onClosedCaptionNotify(const sp<AMessage> &msg) {
1768    int32_t what;
1769    CHECK(msg->findInt32("what", &what));
1770
1771    switch (what) {
1772        case NuPlayer::CCDecoder::kWhatClosedCaptionData:
1773        {
1774            sp<ABuffer> buffer;
1775            CHECK(msg->findBuffer("buffer", &buffer));
1776
1777            size_t inbandTracks = 0;
1778            if (mSource != NULL) {
1779                inbandTracks = mSource->getTrackCount();
1780            }
1781
1782            sendSubtitleData(buffer, inbandTracks);
1783            break;
1784        }
1785
1786        case NuPlayer::CCDecoder::kWhatTrackAdded:
1787        {
1788            notifyListener(MEDIA_INFO, MEDIA_INFO_METADATA_UPDATE, 0);
1789
1790            break;
1791        }
1792
1793        default:
1794            TRESPASS();
1795    }
1796
1797
1798}
1799
1800void NuPlayer::sendSubtitleData(const sp<ABuffer> &buffer, int32_t baseIndex) {
1801    int32_t trackIndex;
1802    int64_t timeUs, durationUs;
1803    CHECK(buffer->meta()->findInt32("trackIndex", &trackIndex));
1804    CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
1805    CHECK(buffer->meta()->findInt64("durationUs", &durationUs));
1806
1807    Parcel in;
1808    in.writeInt32(trackIndex + baseIndex);
1809    in.writeInt64(timeUs);
1810    in.writeInt64(durationUs);
1811    in.writeInt32(buffer->size());
1812    in.writeInt32(buffer->size());
1813    in.write(buffer->data(), buffer->size());
1814
1815    notifyListener(MEDIA_SUBTITLE_DATA, 0, 0, &in);
1816}
1817
1818void NuPlayer::sendTimedTextData(const sp<ABuffer> &buffer) {
1819    const void *data;
1820    size_t size = 0;
1821    int64_t timeUs;
1822    int32_t flag = TextDescriptions::LOCAL_DESCRIPTIONS;
1823
1824    AString mime;
1825    CHECK(buffer->meta()->findString("mime", &mime));
1826    CHECK(strcasecmp(mime.c_str(), MEDIA_MIMETYPE_TEXT_3GPP) == 0);
1827
1828    data = buffer->data();
1829    size = buffer->size();
1830
1831    Parcel parcel;
1832    if (size > 0) {
1833        CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
1834        flag |= TextDescriptions::IN_BAND_TEXT_3GPP;
1835        TextDescriptions::getParcelOfDescriptions(
1836                (const uint8_t *)data, size, flag, timeUs / 1000, &parcel);
1837    }
1838
1839    if ((parcel.dataSize() > 0)) {
1840        notifyListener(MEDIA_TIMED_TEXT, 0, 0, &parcel);
1841    } else {  // send an empty timed text
1842        notifyListener(MEDIA_TIMED_TEXT, 0, 0);
1843    }
1844}
1845////////////////////////////////////////////////////////////////////////////////
1846
1847void NuPlayer::Source::notifyFlagsChanged(uint32_t flags) {
1848    sp<AMessage> notify = dupNotify();
1849    notify->setInt32("what", kWhatFlagsChanged);
1850    notify->setInt32("flags", flags);
1851    notify->post();
1852}
1853
1854void NuPlayer::Source::notifyVideoSizeChanged(int32_t width, int32_t height) {
1855    sp<AMessage> notify = dupNotify();
1856    notify->setInt32("what", kWhatVideoSizeChanged);
1857    notify->setInt32("width", width);
1858    notify->setInt32("height", height);
1859    notify->post();
1860}
1861
1862void NuPlayer::Source::notifyPrepared(status_t err) {
1863    sp<AMessage> notify = dupNotify();
1864    notify->setInt32("what", kWhatPrepared);
1865    notify->setInt32("err", err);
1866    notify->post();
1867}
1868
1869void NuPlayer::Source::onMessageReceived(const sp<AMessage> & /* msg */) {
1870    TRESPASS();
1871}
1872
1873void NuPlayer::queueDecoderShutdown(
1874        bool audio, bool video, const sp<AMessage> &reply) {
1875    ALOGI("queueDecoderShutdown audio=%d, video=%d", audio, video);
1876
1877    mDeferredActions.push_back(
1878            new ShutdownDecoderAction(audio, video));
1879
1880    mDeferredActions.push_back(
1881            new SimpleAction(&NuPlayer::performScanSources));
1882
1883    mDeferredActions.push_back(new PostMessageAction(reply));
1884
1885    processDeferredActions();
1886}
1887
1888}  // namespace android
1889