NuPlayer.cpp revision 5a7501304d815552c3bfaee8789821e4884d073b 
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 "NuPlayerDriver.h"
26#include "NuPlayerRenderer.h"
27#include "NuPlayerSource.h"
28#include "RTSPSource.h"
29#include "StreamingSource.h"
30#include "GenericSource.h"
31#include "mp4/MP4Source.h"
32
33#include "ATSParser.h"
34
35#include <cutils/properties.h> // for property_get
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/ACodec.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
92// Use this if there's no state necessary to save in order to execute
93// the action.
94struct NuPlayer::SimpleAction : public Action {
95    typedef void (NuPlayer::*ActionFunc)();
96
97    SimpleAction(ActionFunc func)
98        : mFunc(func) {
99    }
100
101    virtual void execute(NuPlayer *player) {
102        (player->*mFunc)();
103    }
104
105private:
106    ActionFunc mFunc;
107
108    DISALLOW_EVIL_CONSTRUCTORS(SimpleAction);
109};
110
111////////////////////////////////////////////////////////////////////////////////
112
113NuPlayer::NuPlayer()
114    : mUIDValid(false),
115      mSourceFlags(0),
116      mVideoIsAVC(false),
117      mAudioEOS(false),
118      mVideoEOS(false),
119      mScanSourcesPending(false),
120      mScanSourcesGeneration(0),
121      mPollDurationGeneration(0),
122      mTimeDiscontinuityPending(false),
123      mFlushingAudio(NONE),
124      mFlushingVideo(NONE),
125      mSkipRenderingAudioUntilMediaTimeUs(-1ll),
126      mSkipRenderingVideoUntilMediaTimeUs(-1ll),
127      mVideoLateByUs(0ll),
128      mNumFramesTotal(0ll),
129      mNumFramesDropped(0ll),
130      mVideoScalingMode(NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW),
131      mStarted(false) {
132}
133
134NuPlayer::~NuPlayer() {
135}
136
137void NuPlayer::setUID(uid_t uid) {
138    mUIDValid = true;
139    mUID = uid;
140}
141
142void NuPlayer::setDriver(const wp<NuPlayerDriver> &driver) {
143    mDriver = driver;
144}
145
146void NuPlayer::setDataSourceAsync(const sp<IStreamSource> &source) {
147    sp<AMessage> msg = new AMessage(kWhatSetDataSource, id());
148
149    sp<AMessage> notify = new AMessage(kWhatSourceNotify, id());
150
151    char prop[PROPERTY_VALUE_MAX];
152    if (property_get("media.stagefright.use-mp4source", prop, NULL)
153            && (!strcmp(prop, "1") || !strcasecmp(prop, "true"))) {
154        msg->setObject("source", new MP4Source(notify, source));
155    } else {
156        msg->setObject("source", new StreamingSource(notify, source));
157    }
158
159    msg->post();
160}
161
162static bool IsHTTPLiveURL(const char *url) {
163    if (!strncasecmp("http://", url, 7)
164            || !strncasecmp("https://", url, 8)
165            || !strncasecmp("file://", url, 7)) {
166        size_t len = strlen(url);
167        if (len >= 5 && !strcasecmp(".m3u8", &url[len - 5])) {
168            return true;
169        }
170
171        if (strstr(url,"m3u8")) {
172            return true;
173        }
174    }
175
176    return false;
177}
178
179void NuPlayer::setDataSourceAsync(
180        const char *url, const KeyedVector<String8, String8> *headers) {
181    sp<AMessage> msg = new AMessage(kWhatSetDataSource, id());
182    size_t len = strlen(url);
183
184    sp<AMessage> notify = new AMessage(kWhatSourceNotify, id());
185
186    sp<Source> source;
187    if (IsHTTPLiveURL(url)) {
188        source = new HTTPLiveSource(notify, url, headers, mUIDValid, mUID);
189    } else if (!strncasecmp(url, "rtsp://", 7)) {
190        source = new RTSPSource(notify, url, headers, mUIDValid, mUID);
191    } else if ((!strncasecmp(url, "http://", 7)
192                || !strncasecmp(url, "https://", 8))
193                    && ((len >= 4 && !strcasecmp(".sdp", &url[len - 4]))
194                    || strstr(url, ".sdp?"))) {
195        source = new RTSPSource(notify, url, headers, mUIDValid, mUID, true);
196    } else {
197        source = new GenericSource(notify, url, headers, mUIDValid, mUID);
198    }
199
200    msg->setObject("source", source);
201    msg->post();
202}
203
204void NuPlayer::setDataSourceAsync(int fd, int64_t offset, int64_t length) {
205    sp<AMessage> msg = new AMessage(kWhatSetDataSource, id());
206
207    sp<AMessage> notify = new AMessage(kWhatSourceNotify, id());
208
209    sp<Source> source = new GenericSource(notify, fd, offset, length);
210    msg->setObject("source", source);
211    msg->post();
212}
213
214void NuPlayer::prepareAsync() {
215    (new AMessage(kWhatPrepare, id()))->post();
216}
217
218void NuPlayer::setVideoSurfaceTextureAsync(
219        const sp<IGraphicBufferProducer> &bufferProducer) {
220    sp<AMessage> msg = new AMessage(kWhatSetVideoNativeWindow, id());
221
222    if (bufferProducer == NULL) {
223        msg->setObject("native-window", NULL);
224    } else {
225        msg->setObject(
226                "native-window",
227                new NativeWindowWrapper(
228                    new Surface(bufferProducer)));
229    }
230
231    msg->post();
232}
233
234void NuPlayer::setAudioSink(const sp<MediaPlayerBase::AudioSink> &sink) {
235    sp<AMessage> msg = new AMessage(kWhatSetAudioSink, id());
236    msg->setObject("sink", sink);
237    msg->post();
238}
239
240void NuPlayer::start() {
241    (new AMessage(kWhatStart, id()))->post();
242}
243
244void NuPlayer::pause() {
245    (new AMessage(kWhatPause, id()))->post();
246}
247
248void NuPlayer::resume() {
249    (new AMessage(kWhatResume, id()))->post();
250}
251
252void NuPlayer::resetAsync() {
253    (new AMessage(kWhatReset, id()))->post();
254}
255
256void NuPlayer::seekToAsync(int64_t seekTimeUs) {
257    sp<AMessage> msg = new AMessage(kWhatSeek, id());
258    msg->setInt64("seekTimeUs", seekTimeUs);
259    msg->post();
260}
261
262// static
263bool NuPlayer::IsFlushingState(FlushStatus state, bool *needShutdown) {
264    switch (state) {
265        case FLUSHING_DECODER:
266            if (needShutdown != NULL) {
267                *needShutdown = false;
268            }
269            return true;
270
271        case FLUSHING_DECODER_SHUTDOWN:
272            if (needShutdown != NULL) {
273                *needShutdown = true;
274            }
275            return true;
276
277        default:
278            return false;
279    }
280}
281
282void NuPlayer::onMessageReceived(const sp<AMessage> &msg) {
283    switch (msg->what()) {
284        case kWhatSetDataSource:
285        {
286            ALOGV("kWhatSetDataSource");
287
288            CHECK(mSource == NULL);
289
290            sp<RefBase> obj;
291            CHECK(msg->findObject("source", &obj));
292
293            mSource = static_cast<Source *>(obj.get());
294
295            looper()->registerHandler(mSource);
296
297            CHECK(mDriver != NULL);
298            sp<NuPlayerDriver> driver = mDriver.promote();
299            if (driver != NULL) {
300                driver->notifySetDataSourceCompleted(OK);
301            }
302            break;
303        }
304
305        case kWhatPrepare:
306        {
307            mSource->prepareAsync();
308            break;
309        }
310
311        case kWhatPollDuration:
312        {
313            int32_t generation;
314            CHECK(msg->findInt32("generation", &generation));
315
316            if (generation != mPollDurationGeneration) {
317                // stale
318                break;
319            }
320
321            int64_t durationUs;
322            if (mDriver != NULL && mSource->getDuration(&durationUs) == OK) {
323                sp<NuPlayerDriver> driver = mDriver.promote();
324                if (driver != NULL) {
325                    driver->notifyDuration(durationUs);
326                }
327            }
328
329            msg->post(1000000ll);  // poll again in a second.
330            break;
331        }
332
333        case kWhatSetVideoNativeWindow:
334        {
335            ALOGV("kWhatSetVideoNativeWindow");
336
337            mDeferredActions.push_back(
338                    new SimpleAction(&NuPlayer::performDecoderShutdown));
339
340            sp<RefBase> obj;
341            CHECK(msg->findObject("native-window", &obj));
342
343            mDeferredActions.push_back(
344                    new SetSurfaceAction(
345                        static_cast<NativeWindowWrapper *>(obj.get())));
346
347            if (obj != NULL) {
348                // If there is a new surface texture, instantiate decoders
349                // again if possible.
350                mDeferredActions.push_back(
351                        new SimpleAction(&NuPlayer::performScanSources));
352            }
353
354            processDeferredActions();
355            break;
356        }
357
358        case kWhatSetAudioSink:
359        {
360            ALOGV("kWhatSetAudioSink");
361
362            sp<RefBase> obj;
363            CHECK(msg->findObject("sink", &obj));
364
365            mAudioSink = static_cast<MediaPlayerBase::AudioSink *>(obj.get());
366            break;
367        }
368
369        case kWhatStart:
370        {
371            ALOGV("kWhatStart");
372
373            mVideoIsAVC = false;
374            mAudioEOS = false;
375            mVideoEOS = false;
376            mSkipRenderingAudioUntilMediaTimeUs = -1;
377            mSkipRenderingVideoUntilMediaTimeUs = -1;
378            mVideoLateByUs = 0;
379            mNumFramesTotal = 0;
380            mNumFramesDropped = 0;
381            mStarted = true;
382
383            mSource->start();
384
385            uint32_t flags = 0;
386
387            if (mSource->isRealTime()) {
388                flags |= Renderer::FLAG_REAL_TIME;
389            }
390
391            mRenderer = new Renderer(
392                    mAudioSink,
393                    new AMessage(kWhatRendererNotify, id()),
394                    flags);
395
396            looper()->registerHandler(mRenderer);
397
398            postScanSources();
399            break;
400        }
401
402        case kWhatScanSources:
403        {
404            int32_t generation;
405            CHECK(msg->findInt32("generation", &generation));
406            if (generation != mScanSourcesGeneration) {
407                // Drop obsolete msg.
408                break;
409            }
410
411            mScanSourcesPending = false;
412
413            ALOGV("scanning sources haveAudio=%d, haveVideo=%d",
414                 mAudioDecoder != NULL, mVideoDecoder != NULL);
415
416            bool mHadAnySourcesBefore =
417                (mAudioDecoder != NULL) || (mVideoDecoder != NULL);
418
419            if (mNativeWindow != NULL) {
420                instantiateDecoder(false, &mVideoDecoder);
421            }
422
423            if (mAudioSink != NULL) {
424                instantiateDecoder(true, &mAudioDecoder);
425            }
426
427            if (!mHadAnySourcesBefore
428                    && (mAudioDecoder != NULL || mVideoDecoder != NULL)) {
429                // This is the first time we've found anything playable.
430
431                if (mSourceFlags & Source::FLAG_DYNAMIC_DURATION) {
432                    schedulePollDuration();
433                }
434            }
435
436            status_t err;
437            if ((err = mSource->feedMoreTSData()) != OK) {
438                if (mAudioDecoder == NULL && mVideoDecoder == NULL) {
439                    // We're not currently decoding anything (no audio or
440                    // video tracks found) and we just ran out of input data.
441
442                    if (err == ERROR_END_OF_STREAM) {
443                        notifyListener(MEDIA_PLAYBACK_COMPLETE, 0, 0);
444                    } else {
445                        notifyListener(MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, err);
446                    }
447                }
448                break;
449            }
450
451            if ((mAudioDecoder == NULL && mAudioSink != NULL)
452                    || (mVideoDecoder == NULL && mNativeWindow != NULL)) {
453                msg->post(100000ll);
454                mScanSourcesPending = true;
455            }
456            break;
457        }
458
459        case kWhatVideoNotify:
460        case kWhatAudioNotify:
461        {
462            bool audio = msg->what() == kWhatAudioNotify;
463
464            sp<AMessage> codecRequest;
465            CHECK(msg->findMessage("codec-request", &codecRequest));
466
467            int32_t what;
468            CHECK(codecRequest->findInt32("what", &what));
469
470            if (what == ACodec::kWhatFillThisBuffer) {
471                status_t err = feedDecoderInputData(
472                        audio, codecRequest);
473
474                if (err == -EWOULDBLOCK) {
475                    if (mSource->feedMoreTSData() == OK) {
476                        msg->post(10000ll);
477                    }
478                }
479            } else if (what == ACodec::kWhatEOS) {
480                int32_t err;
481                CHECK(codecRequest->findInt32("err", &err));
482
483                if (err == ERROR_END_OF_STREAM) {
484                    ALOGV("got %s decoder EOS", audio ? "audio" : "video");
485                } else {
486                    ALOGV("got %s decoder EOS w/ error %d",
487                         audio ? "audio" : "video",
488                         err);
489                }
490
491                mRenderer->queueEOS(audio, err);
492            } else if (what == ACodec::kWhatFlushCompleted) {
493                bool needShutdown;
494
495                if (audio) {
496                    CHECK(IsFlushingState(mFlushingAudio, &needShutdown));
497                    mFlushingAudio = FLUSHED;
498                } else {
499                    CHECK(IsFlushingState(mFlushingVideo, &needShutdown));
500                    mFlushingVideo = FLUSHED;
501
502                    mVideoLateByUs = 0;
503                }
504
505                ALOGV("decoder %s flush completed", audio ? "audio" : "video");
506
507                if (needShutdown) {
508                    ALOGV("initiating %s decoder shutdown",
509                         audio ? "audio" : "video");
510
511                    (audio ? mAudioDecoder : mVideoDecoder)->initiateShutdown();
512
513                    if (audio) {
514                        mFlushingAudio = SHUTTING_DOWN_DECODER;
515                    } else {
516                        mFlushingVideo = SHUTTING_DOWN_DECODER;
517                    }
518                }
519
520                finishFlushIfPossible();
521            } else if (what == ACodec::kWhatOutputFormatChanged) {
522                if (audio) {
523                    int32_t numChannels;
524                    CHECK(codecRequest->findInt32(
525                                "channel-count", &numChannels));
526
527                    int32_t sampleRate;
528                    CHECK(codecRequest->findInt32("sample-rate", &sampleRate));
529
530                    ALOGV("Audio output format changed to %d Hz, %d channels",
531                         sampleRate, numChannels);
532
533                    mAudioSink->close();
534
535                    audio_output_flags_t flags;
536                    int64_t durationUs;
537                    // FIXME: we should handle the case where the video decoder
538                    // is created after we receive the format change indication.
539                    // Current code will just make that we select deep buffer
540                    // with video which should not be a problem as it should
541                    // not prevent from keeping A/V sync.
542                    if (mVideoDecoder == NULL &&
543                            mSource->getDuration(&durationUs) == OK &&
544                            durationUs
545                                > AUDIO_SINK_MIN_DEEP_BUFFER_DURATION_US) {
546                        flags = AUDIO_OUTPUT_FLAG_DEEP_BUFFER;
547                    } else {
548                        flags = AUDIO_OUTPUT_FLAG_NONE;
549                    }
550
551                    int32_t channelMask;
552                    if (!codecRequest->findInt32("channel-mask", &channelMask)) {
553                        channelMask = CHANNEL_MASK_USE_CHANNEL_ORDER;
554                    }
555
556                    CHECK_EQ(mAudioSink->open(
557                                sampleRate,
558                                numChannels,
559                                (audio_channel_mask_t)channelMask,
560                                AUDIO_FORMAT_PCM_16_BIT,
561                                8 /* bufferCount */,
562                                NULL,
563                                NULL,
564                                flags),
565                             (status_t)OK);
566                    mAudioSink->start();
567
568                    mRenderer->signalAudioSinkChanged();
569                } else {
570                    // video
571
572                    int32_t width, height;
573                    CHECK(codecRequest->findInt32("width", &width));
574                    CHECK(codecRequest->findInt32("height", &height));
575
576                    int32_t cropLeft, cropTop, cropRight, cropBottom;
577                    CHECK(codecRequest->findRect(
578                                "crop",
579                                &cropLeft, &cropTop, &cropRight, &cropBottom));
580
581                    int32_t displayWidth = cropRight - cropLeft + 1;
582                    int32_t displayHeight = cropBottom - cropTop + 1;
583
584                    ALOGV("Video output format changed to %d x %d "
585                         "(crop: %d x %d @ (%d, %d))",
586                         width, height,
587                         displayWidth,
588                         displayHeight,
589                         cropLeft, cropTop);
590
591                    sp<AMessage> videoInputFormat =
592                        mSource->getFormat(false /* audio */);
593
594                    // Take into account sample aspect ratio if necessary:
595                    int32_t sarWidth, sarHeight;
596                    if (videoInputFormat->findInt32("sar-width", &sarWidth)
597                            && videoInputFormat->findInt32(
598                                "sar-height", &sarHeight)) {
599                        ALOGV("Sample aspect ratio %d : %d",
600                              sarWidth, sarHeight);
601
602                        displayWidth = (displayWidth * sarWidth) / sarHeight;
603
604                        ALOGV("display dimensions %d x %d",
605                              displayWidth, displayHeight);
606                    }
607
608                    notifyListener(
609                            MEDIA_SET_VIDEO_SIZE, displayWidth, displayHeight);
610                }
611            } else if (what == ACodec::kWhatShutdownCompleted) {
612                ALOGV("%s shutdown completed", audio ? "audio" : "video");
613                if (audio) {
614                    mAudioDecoder.clear();
615
616                    CHECK_EQ((int)mFlushingAudio, (int)SHUTTING_DOWN_DECODER);
617                    mFlushingAudio = SHUT_DOWN;
618                } else {
619                    mVideoDecoder.clear();
620
621                    CHECK_EQ((int)mFlushingVideo, (int)SHUTTING_DOWN_DECODER);
622                    mFlushingVideo = SHUT_DOWN;
623                }
624
625                finishFlushIfPossible();
626            } else if (what == ACodec::kWhatError) {
627                ALOGE("Received error from %s decoder, aborting playback.",
628                     audio ? "audio" : "video");
629
630                mRenderer->queueEOS(audio, UNKNOWN_ERROR);
631            } else if (what == ACodec::kWhatDrainThisBuffer) {
632                renderBuffer(audio, codecRequest);
633            } else if (what != ACodec::kWhatComponentAllocated
634                    && what != ACodec::kWhatComponentConfigured
635                    && what != ACodec::kWhatBuffersAllocated) {
636                ALOGV("Unhandled codec notification %d '%c%c%c%c'.",
637                      what,
638                      what >> 24,
639                      (what >> 16) & 0xff,
640                      (what >> 8) & 0xff,
641                      what & 0xff);
642            }
643
644            break;
645        }
646
647        case kWhatRendererNotify:
648        {
649            int32_t what;
650            CHECK(msg->findInt32("what", &what));
651
652            if (what == Renderer::kWhatEOS) {
653                int32_t audio;
654                CHECK(msg->findInt32("audio", &audio));
655
656                int32_t finalResult;
657                CHECK(msg->findInt32("finalResult", &finalResult));
658
659                if (audio) {
660                    mAudioEOS = true;
661                } else {
662                    mVideoEOS = true;
663                }
664
665                if (finalResult == ERROR_END_OF_STREAM) {
666                    ALOGV("reached %s EOS", audio ? "audio" : "video");
667                } else {
668                    ALOGE("%s track encountered an error (%d)",
669                         audio ? "audio" : "video", finalResult);
670
671                    notifyListener(
672                            MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, finalResult);
673                }
674
675                if ((mAudioEOS || mAudioDecoder == NULL)
676                        && (mVideoEOS || mVideoDecoder == NULL)) {
677                    notifyListener(MEDIA_PLAYBACK_COMPLETE, 0, 0);
678                }
679            } else if (what == Renderer::kWhatPosition) {
680                int64_t positionUs;
681                CHECK(msg->findInt64("positionUs", &positionUs));
682
683                CHECK(msg->findInt64("videoLateByUs", &mVideoLateByUs));
684
685                if (mDriver != NULL) {
686                    sp<NuPlayerDriver> driver = mDriver.promote();
687                    if (driver != NULL) {
688                        driver->notifyPosition(positionUs);
689
690                        driver->notifyFrameStats(
691                                mNumFramesTotal, mNumFramesDropped);
692                    }
693                }
694            } else if (what == Renderer::kWhatFlushComplete) {
695                int32_t audio;
696                CHECK(msg->findInt32("audio", &audio));
697
698                ALOGV("renderer %s flush completed.", audio ? "audio" : "video");
699            } else if (what == Renderer::kWhatVideoRenderingStart) {
700                notifyListener(MEDIA_INFO, MEDIA_INFO_RENDERING_START, 0);
701            }
702            break;
703        }
704
705        case kWhatMoreDataQueued:
706        {
707            break;
708        }
709
710        case kWhatReset:
711        {
712            ALOGV("kWhatReset");
713
714            mDeferredActions.push_back(
715                    new SimpleAction(&NuPlayer::performDecoderShutdown));
716
717            mDeferredActions.push_back(
718                    new SimpleAction(&NuPlayer::performReset));
719
720            processDeferredActions();
721            break;
722        }
723
724        case kWhatSeek:
725        {
726            int64_t seekTimeUs;
727            CHECK(msg->findInt64("seekTimeUs", &seekTimeUs));
728
729            ALOGV("kWhatSeek seekTimeUs=%lld us", seekTimeUs);
730
731            mDeferredActions.push_back(
732                    new SimpleAction(&NuPlayer::performDecoderFlush));
733
734            mDeferredActions.push_back(new SeekAction(seekTimeUs));
735
736            processDeferredActions();
737            break;
738        }
739
740        case kWhatPause:
741        {
742            CHECK(mRenderer != NULL);
743            mSource->pause();
744            mRenderer->pause();
745            break;
746        }
747
748        case kWhatResume:
749        {
750            CHECK(mRenderer != NULL);
751            mSource->resume();
752            mRenderer->resume();
753            break;
754        }
755
756        case kWhatSourceNotify:
757        {
758            onSourceNotify(msg);
759            break;
760        }
761
762        default:
763            TRESPASS();
764            break;
765    }
766}
767
768void NuPlayer::finishFlushIfPossible() {
769    if (mFlushingAudio != FLUSHED && mFlushingAudio != SHUT_DOWN) {
770        return;
771    }
772
773    if (mFlushingVideo != FLUSHED && mFlushingVideo != SHUT_DOWN) {
774        return;
775    }
776
777    ALOGV("both audio and video are flushed now.");
778
779    if (mTimeDiscontinuityPending) {
780        mRenderer->signalTimeDiscontinuity();
781        mTimeDiscontinuityPending = false;
782    }
783
784    if (mAudioDecoder != NULL) {
785        mAudioDecoder->signalResume();
786    }
787
788    if (mVideoDecoder != NULL) {
789        mVideoDecoder->signalResume();
790    }
791
792    mFlushingAudio = NONE;
793    mFlushingVideo = NONE;
794
795    processDeferredActions();
796}
797
798void NuPlayer::postScanSources() {
799    if (mScanSourcesPending) {
800        return;
801    }
802
803    sp<AMessage> msg = new AMessage(kWhatScanSources, id());
804    msg->setInt32("generation", mScanSourcesGeneration);
805    msg->post();
806
807    mScanSourcesPending = true;
808}
809
810status_t NuPlayer::instantiateDecoder(bool audio, sp<Decoder> *decoder) {
811    if (*decoder != NULL) {
812        return OK;
813    }
814
815    sp<AMessage> format = mSource->getFormat(audio);
816
817    if (format == NULL) {
818        return -EWOULDBLOCK;
819    }
820
821    if (!audio) {
822        AString mime;
823        CHECK(format->findString("mime", &mime));
824        mVideoIsAVC = !strcasecmp(MEDIA_MIMETYPE_VIDEO_AVC, mime.c_str());
825    }
826
827    sp<AMessage> notify =
828        new AMessage(audio ? kWhatAudioNotify : kWhatVideoNotify,
829                     id());
830
831    *decoder = audio ? new Decoder(notify) :
832                       new Decoder(notify, mNativeWindow);
833    looper()->registerHandler(*decoder);
834
835    (*decoder)->configure(format);
836
837    return OK;
838}
839
840status_t NuPlayer::feedDecoderInputData(bool audio, const sp<AMessage> &msg) {
841    sp<AMessage> reply;
842    CHECK(msg->findMessage("reply", &reply));
843
844    if ((audio && IsFlushingState(mFlushingAudio))
845            || (!audio && IsFlushingState(mFlushingVideo))) {
846        reply->setInt32("err", INFO_DISCONTINUITY);
847        reply->post();
848        return OK;
849    }
850
851    sp<ABuffer> accessUnit;
852
853    bool dropAccessUnit;
854    do {
855        status_t err = mSource->dequeueAccessUnit(audio, &accessUnit);
856
857        if (err == -EWOULDBLOCK) {
858            return err;
859        } else if (err != OK) {
860            if (err == INFO_DISCONTINUITY) {
861                int32_t type;
862                CHECK(accessUnit->meta()->findInt32("discontinuity", &type));
863
864                bool formatChange =
865                    (audio &&
866                     (type & ATSParser::DISCONTINUITY_AUDIO_FORMAT))
867                    || (!audio &&
868                            (type & ATSParser::DISCONTINUITY_VIDEO_FORMAT));
869
870                bool timeChange = (type & ATSParser::DISCONTINUITY_TIME) != 0;
871
872                ALOGI("%s discontinuity (formatChange=%d, time=%d)",
873                     audio ? "audio" : "video", formatChange, timeChange);
874
875                if (audio) {
876                    mSkipRenderingAudioUntilMediaTimeUs = -1;
877                } else {
878                    mSkipRenderingVideoUntilMediaTimeUs = -1;
879                }
880
881                if (timeChange) {
882                    sp<AMessage> extra;
883                    if (accessUnit->meta()->findMessage("extra", &extra)
884                            && extra != NULL) {
885                        int64_t resumeAtMediaTimeUs;
886                        if (extra->findInt64(
887                                    "resume-at-mediatimeUs", &resumeAtMediaTimeUs)) {
888                            ALOGI("suppressing rendering of %s until %lld us",
889                                    audio ? "audio" : "video", resumeAtMediaTimeUs);
890
891                            if (audio) {
892                                mSkipRenderingAudioUntilMediaTimeUs =
893                                    resumeAtMediaTimeUs;
894                            } else {
895                                mSkipRenderingVideoUntilMediaTimeUs =
896                                    resumeAtMediaTimeUs;
897                            }
898                        }
899                    }
900                }
901
902                mTimeDiscontinuityPending =
903                    mTimeDiscontinuityPending || timeChange;
904
905                if (formatChange || timeChange) {
906                    if (mFlushingAudio == NONE && mFlushingVideo == NONE) {
907                        // And we'll resume scanning sources once we're done
908                        // flushing.
909                        mDeferredActions.push_front(
910                                new SimpleAction(
911                                    &NuPlayer::performScanSources));
912                    }
913
914                    flushDecoder(audio, formatChange);
915                } else {
916                    // This stream is unaffected by the discontinuity
917
918                    if (audio) {
919                        mFlushingAudio = FLUSHED;
920                    } else {
921                        mFlushingVideo = FLUSHED;
922                    }
923
924                    finishFlushIfPossible();
925
926                    return -EWOULDBLOCK;
927                }
928            }
929
930            reply->setInt32("err", err);
931            reply->post();
932            return OK;
933        }
934
935        if (!audio) {
936            ++mNumFramesTotal;
937        }
938
939        dropAccessUnit = false;
940        if (!audio
941                && mVideoLateByUs > 100000ll
942                && mVideoIsAVC
943                && !IsAVCReferenceFrame(accessUnit)) {
944            dropAccessUnit = true;
945            ++mNumFramesDropped;
946        }
947    } while (dropAccessUnit);
948
949    // ALOGV("returned a valid buffer of %s data", audio ? "audio" : "video");
950
951#if 0
952    int64_t mediaTimeUs;
953    CHECK(accessUnit->meta()->findInt64("timeUs", &mediaTimeUs));
954    ALOGV("feeding %s input buffer at media time %.2f secs",
955         audio ? "audio" : "video",
956         mediaTimeUs / 1E6);
957#endif
958
959    reply->setBuffer("buffer", accessUnit);
960    reply->post();
961
962    return OK;
963}
964
965void NuPlayer::renderBuffer(bool audio, const sp<AMessage> &msg) {
966    // ALOGV("renderBuffer %s", audio ? "audio" : "video");
967
968    sp<AMessage> reply;
969    CHECK(msg->findMessage("reply", &reply));
970
971    if (IsFlushingState(audio ? mFlushingAudio : mFlushingVideo)) {
972        // We're currently attempting to flush the decoder, in order
973        // to complete this, the decoder wants all its buffers back,
974        // so we don't want any output buffers it sent us (from before
975        // we initiated the flush) to be stuck in the renderer's queue.
976
977        ALOGV("we're still flushing the %s decoder, sending its output buffer"
978             " right back.", audio ? "audio" : "video");
979
980        reply->post();
981        return;
982    }
983
984    sp<ABuffer> buffer;
985    CHECK(msg->findBuffer("buffer", &buffer));
986
987    int64_t &skipUntilMediaTimeUs =
988        audio
989            ? mSkipRenderingAudioUntilMediaTimeUs
990            : mSkipRenderingVideoUntilMediaTimeUs;
991
992    if (skipUntilMediaTimeUs >= 0) {
993        int64_t mediaTimeUs;
994        CHECK(buffer->meta()->findInt64("timeUs", &mediaTimeUs));
995
996        if (mediaTimeUs < skipUntilMediaTimeUs) {
997            ALOGV("dropping %s buffer at time %lld as requested.",
998                 audio ? "audio" : "video",
999                 mediaTimeUs);
1000
1001            reply->post();
1002            return;
1003        }
1004
1005        skipUntilMediaTimeUs = -1;
1006    }
1007
1008    mRenderer->queueBuffer(audio, buffer, reply);
1009}
1010
1011void NuPlayer::notifyListener(int msg, int ext1, int ext2) {
1012    if (mDriver == NULL) {
1013        return;
1014    }
1015
1016    sp<NuPlayerDriver> driver = mDriver.promote();
1017
1018    if (driver == NULL) {
1019        return;
1020    }
1021
1022    driver->notifyListener(msg, ext1, ext2);
1023}
1024
1025void NuPlayer::flushDecoder(bool audio, bool needShutdown) {
1026    if ((audio && mAudioDecoder == NULL) || (!audio && mVideoDecoder == NULL)) {
1027        ALOGI("flushDecoder %s without decoder present",
1028             audio ? "audio" : "video");
1029    }
1030
1031    // Make sure we don't continue to scan sources until we finish flushing.
1032    ++mScanSourcesGeneration;
1033    mScanSourcesPending = false;
1034
1035    (audio ? mAudioDecoder : mVideoDecoder)->signalFlush();
1036    mRenderer->flush(audio);
1037
1038    FlushStatus newStatus =
1039        needShutdown ? FLUSHING_DECODER_SHUTDOWN : FLUSHING_DECODER;
1040
1041    if (audio) {
1042        CHECK(mFlushingAudio == NONE
1043                || mFlushingAudio == AWAITING_DISCONTINUITY);
1044
1045        mFlushingAudio = newStatus;
1046
1047        if (mFlushingVideo == NONE) {
1048            mFlushingVideo = (mVideoDecoder != NULL)
1049                ? AWAITING_DISCONTINUITY
1050                : FLUSHED;
1051        }
1052    } else {
1053        CHECK(mFlushingVideo == NONE
1054                || mFlushingVideo == AWAITING_DISCONTINUITY);
1055
1056        mFlushingVideo = newStatus;
1057
1058        if (mFlushingAudio == NONE) {
1059            mFlushingAudio = (mAudioDecoder != NULL)
1060                ? AWAITING_DISCONTINUITY
1061                : FLUSHED;
1062        }
1063    }
1064}
1065
1066sp<AMessage> NuPlayer::Source::getFormat(bool audio) {
1067    sp<MetaData> meta = getFormatMeta(audio);
1068
1069    if (meta == NULL) {
1070        return NULL;
1071    }
1072
1073    sp<AMessage> msg = new AMessage;
1074
1075    if(convertMetaDataToMessage(meta, &msg) == OK) {
1076        return msg;
1077    }
1078    return NULL;
1079}
1080
1081status_t NuPlayer::setVideoScalingMode(int32_t mode) {
1082    mVideoScalingMode = mode;
1083    if (mNativeWindow != NULL) {
1084        status_t ret = native_window_set_scaling_mode(
1085                mNativeWindow->getNativeWindow().get(), mVideoScalingMode);
1086        if (ret != OK) {
1087            ALOGE("Failed to set scaling mode (%d): %s",
1088                -ret, strerror(-ret));
1089            return ret;
1090        }
1091    }
1092    return OK;
1093}
1094
1095void NuPlayer::schedulePollDuration() {
1096    sp<AMessage> msg = new AMessage(kWhatPollDuration, id());
1097    msg->setInt32("generation", mPollDurationGeneration);
1098    msg->post();
1099}
1100
1101void NuPlayer::cancelPollDuration() {
1102    ++mPollDurationGeneration;
1103}
1104
1105void NuPlayer::processDeferredActions() {
1106    while (!mDeferredActions.empty()) {
1107        // We won't execute any deferred actions until we're no longer in
1108        // an intermediate state, i.e. one more more decoders are currently
1109        // flushing or shutting down.
1110
1111        if (mRenderer != NULL) {
1112            // There's an edge case where the renderer owns all output
1113            // buffers and is paused, therefore the decoder will not read
1114            // more input data and will never encounter the matching
1115            // discontinuity. To avoid this, we resume the renderer.
1116
1117            if (mFlushingAudio == AWAITING_DISCONTINUITY
1118                    || mFlushingVideo == AWAITING_DISCONTINUITY) {
1119                mRenderer->resume();
1120            }
1121        }
1122
1123        if (mFlushingAudio != NONE || mFlushingVideo != NONE) {
1124            // We're currently flushing, postpone the reset until that's
1125            // completed.
1126
1127            ALOGV("postponing action mFlushingAudio=%d, mFlushingVideo=%d",
1128                  mFlushingAudio, mFlushingVideo);
1129
1130            break;
1131        }
1132
1133        sp<Action> action = *mDeferredActions.begin();
1134        mDeferredActions.erase(mDeferredActions.begin());
1135
1136        action->execute(this);
1137    }
1138}
1139
1140void NuPlayer::performSeek(int64_t seekTimeUs) {
1141    ALOGV("performSeek seekTimeUs=%lld us (%.2f secs)",
1142          seekTimeUs,
1143          seekTimeUs / 1E6);
1144
1145    mSource->seekTo(seekTimeUs);
1146
1147    if (mDriver != NULL) {
1148        sp<NuPlayerDriver> driver = mDriver.promote();
1149        if (driver != NULL) {
1150            driver->notifyPosition(seekTimeUs);
1151            driver->notifySeekComplete();
1152        }
1153    }
1154
1155    // everything's flushed, continue playback.
1156}
1157
1158void NuPlayer::performDecoderFlush() {
1159    ALOGV("performDecoderFlush");
1160
1161    if (mAudioDecoder == NULL && mVideoDecoder == NULL) {
1162        return;
1163    }
1164
1165    mTimeDiscontinuityPending = true;
1166
1167    if (mAudioDecoder != NULL) {
1168        flushDecoder(true /* audio */, false /* needShutdown */);
1169    }
1170
1171    if (mVideoDecoder != NULL) {
1172        flushDecoder(false /* audio */, false /* needShutdown */);
1173    }
1174}
1175
1176void NuPlayer::performDecoderShutdown() {
1177    ALOGV("performDecoderShutdown");
1178
1179    if (mAudioDecoder == NULL && mVideoDecoder == NULL) {
1180        return;
1181    }
1182
1183    mTimeDiscontinuityPending = true;
1184
1185    if (mAudioDecoder != NULL) {
1186        flushDecoder(true /* audio */, true /* needShutdown */);
1187    }
1188
1189    if (mVideoDecoder != NULL) {
1190        flushDecoder(false /* audio */, true /* needShutdown */);
1191    }
1192}
1193
1194void NuPlayer::performReset() {
1195    ALOGV("performReset");
1196
1197    CHECK(mAudioDecoder == NULL);
1198    CHECK(mVideoDecoder == NULL);
1199
1200    cancelPollDuration();
1201
1202    ++mScanSourcesGeneration;
1203    mScanSourcesPending = false;
1204
1205    mRenderer.clear();
1206
1207    if (mSource != NULL) {
1208        mSource->stop();
1209
1210        looper()->unregisterHandler(mSource->id());
1211
1212        mSource.clear();
1213    }
1214
1215    if (mDriver != NULL) {
1216        sp<NuPlayerDriver> driver = mDriver.promote();
1217        if (driver != NULL) {
1218            driver->notifyResetComplete();
1219        }
1220    }
1221
1222    mStarted = false;
1223}
1224
1225void NuPlayer::performScanSources() {
1226    ALOGV("performScanSources");
1227
1228    if (!mStarted) {
1229        return;
1230    }
1231
1232    if (mAudioDecoder == NULL || mVideoDecoder == NULL) {
1233        postScanSources();
1234    }
1235}
1236
1237void NuPlayer::performSetSurface(const sp<NativeWindowWrapper> &wrapper) {
1238    ALOGV("performSetSurface");
1239
1240    mNativeWindow = wrapper;
1241
1242    // XXX - ignore error from setVideoScalingMode for now
1243    setVideoScalingMode(mVideoScalingMode);
1244
1245    if (mDriver != NULL) {
1246        sp<NuPlayerDriver> driver = mDriver.promote();
1247        if (driver != NULL) {
1248            driver->notifySetSurfaceComplete();
1249        }
1250    }
1251}
1252
1253void NuPlayer::onSourceNotify(const sp<AMessage> &msg) {
1254    int32_t what;
1255    CHECK(msg->findInt32("what", &what));
1256
1257    switch (what) {
1258        case Source::kWhatPrepared:
1259        {
1260            if (mSource == NULL) {
1261                // This is a stale notification from a source that was
1262                // asynchronously preparing when the client called reset().
1263                // We handled the reset, the source is gone.
1264                break;
1265            }
1266
1267            int32_t err;
1268            CHECK(msg->findInt32("err", &err));
1269
1270            sp<NuPlayerDriver> driver = mDriver.promote();
1271            if (driver != NULL) {
1272                driver->notifyPrepareCompleted(err);
1273            }
1274
1275            int64_t durationUs;
1276            if (mDriver != NULL && mSource->getDuration(&durationUs) == OK) {
1277                sp<NuPlayerDriver> driver = mDriver.promote();
1278                if (driver != NULL) {
1279                    driver->notifyDuration(durationUs);
1280                }
1281            }
1282            break;
1283        }
1284
1285        case Source::kWhatFlagsChanged:
1286        {
1287            uint32_t flags;
1288            CHECK(msg->findInt32("flags", (int32_t *)&flags));
1289
1290            if ((mSourceFlags & Source::FLAG_DYNAMIC_DURATION)
1291                    && (!(flags & Source::FLAG_DYNAMIC_DURATION))) {
1292                cancelPollDuration();
1293            } else if (!(mSourceFlags & Source::FLAG_DYNAMIC_DURATION)
1294                    && (flags & Source::FLAG_DYNAMIC_DURATION)
1295                    && (mAudioDecoder != NULL || mVideoDecoder != NULL)) {
1296                schedulePollDuration();
1297            }
1298
1299            mSourceFlags = flags;
1300            break;
1301        }
1302
1303        case Source::kWhatVideoSizeChanged:
1304        {
1305            int32_t width, height;
1306            CHECK(msg->findInt32("width", &width));
1307            CHECK(msg->findInt32("height", &height));
1308
1309            notifyListener(MEDIA_SET_VIDEO_SIZE, width, height);
1310            break;
1311        }
1312
1313        case Source::kWhatBufferingStart:
1314        {
1315            notifyListener(MEDIA_INFO, MEDIA_INFO_BUFFERING_START, 0);
1316            break;
1317        }
1318
1319        case Source::kWhatBufferingEnd:
1320        {
1321            notifyListener(MEDIA_INFO, MEDIA_INFO_BUFFERING_END, 0);
1322            break;
1323        }
1324
1325        default:
1326            TRESPASS();
1327    }
1328}
1329
1330////////////////////////////////////////////////////////////////////////////////
1331
1332void NuPlayer::Source::notifyFlagsChanged(uint32_t flags) {
1333    sp<AMessage> notify = dupNotify();
1334    notify->setInt32("what", kWhatFlagsChanged);
1335    notify->setInt32("flags", flags);
1336    notify->post();
1337}
1338
1339void NuPlayer::Source::notifyVideoSizeChanged(int32_t width, int32_t height) {
1340    sp<AMessage> notify = dupNotify();
1341    notify->setInt32("what", kWhatVideoSizeChanged);
1342    notify->setInt32("width", width);
1343    notify->setInt32("height", height);
1344    notify->post();
1345}
1346
1347void NuPlayer::Source::notifyPrepared(status_t err) {
1348    sp<AMessage> notify = dupNotify();
1349    notify->setInt32("what", kWhatPrepared);
1350    notify->setInt32("err", err);
1351    notify->post();
1352}
1353
1354void NuPlayer::Source::onMessageReceived(const sp<AMessage> &msg) {
1355    TRESPASS();
1356}
1357
1358}  // namespace android
1359