NuPlayer.cpp revision d5e56231a598b180a1d898bb7dc61b75580e59a4 
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        size_t len = strlen(url);
166        if (len >= 5 && !strcasecmp(".m3u8", &url[len - 5])) {
167            return true;
168        }
169
170        if (strstr(url,"m3u8")) {
171            return true;
172        }
173    }
174
175    return false;
176}
177
178void NuPlayer::setDataSourceAsync(
179        const char *url, const KeyedVector<String8, String8> *headers) {
180    sp<AMessage> msg = new AMessage(kWhatSetDataSource, id());
181    size_t len = strlen(url);
182
183    sp<AMessage> notify = new AMessage(kWhatSourceNotify, id());
184
185    sp<Source> source;
186    if (IsHTTPLiveURL(url)) {
187        source = new HTTPLiveSource(notify, url, headers, mUIDValid, mUID);
188    } else if (!strncasecmp(url, "rtsp://", 7)) {
189        source = new RTSPSource(notify, url, headers, mUIDValid, mUID);
190    } else if ((!strncasecmp(url, "http://", 7)
191                || !strncasecmp(url, "https://", 8))
192                    && ((len >= 4 && !strcasecmp(".sdp", &url[len - 4]))
193                    || strstr(url, ".sdp?"))) {
194        source = new RTSPSource(notify, url, headers, mUIDValid, mUID, true);
195    } else {
196        source = new GenericSource(notify, url, headers, mUIDValid, mUID);
197    }
198
199    msg->setObject("source", source);
200    msg->post();
201}
202
203void NuPlayer::setDataSourceAsync(int fd, int64_t offset, int64_t length) {
204    sp<AMessage> msg = new AMessage(kWhatSetDataSource, id());
205
206    sp<AMessage> notify = new AMessage(kWhatSourceNotify, id());
207
208    sp<Source> source = new GenericSource(notify, fd, offset, length);
209    msg->setObject("source", source);
210    msg->post();
211}
212
213void NuPlayer::prepareAsync() {
214    (new AMessage(kWhatPrepare, id()))->post();
215}
216
217void NuPlayer::setVideoSurfaceTextureAsync(
218        const sp<IGraphicBufferProducer> &bufferProducer) {
219    sp<AMessage> msg = new AMessage(kWhatSetVideoNativeWindow, id());
220
221    if (bufferProducer == NULL) {
222        msg->setObject("native-window", NULL);
223    } else {
224        msg->setObject(
225                "native-window",
226                new NativeWindowWrapper(
227                    new Surface(bufferProducer)));
228    }
229
230    msg->post();
231}
232
233void NuPlayer::setAudioSink(const sp<MediaPlayerBase::AudioSink> &sink) {
234    sp<AMessage> msg = new AMessage(kWhatSetAudioSink, id());
235    msg->setObject("sink", sink);
236    msg->post();
237}
238
239void NuPlayer::start() {
240    (new AMessage(kWhatStart, id()))->post();
241}
242
243void NuPlayer::pause() {
244    (new AMessage(kWhatPause, id()))->post();
245}
246
247void NuPlayer::resume() {
248    (new AMessage(kWhatResume, id()))->post();
249}
250
251void NuPlayer::resetAsync() {
252    (new AMessage(kWhatReset, id()))->post();
253}
254
255void NuPlayer::seekToAsync(int64_t seekTimeUs) {
256    sp<AMessage> msg = new AMessage(kWhatSeek, id());
257    msg->setInt64("seekTimeUs", seekTimeUs);
258    msg->post();
259}
260
261// static
262bool NuPlayer::IsFlushingState(FlushStatus state, bool *needShutdown) {
263    switch (state) {
264        case FLUSHING_DECODER:
265            if (needShutdown != NULL) {
266                *needShutdown = false;
267            }
268            return true;
269
270        case FLUSHING_DECODER_SHUTDOWN:
271            if (needShutdown != NULL) {
272                *needShutdown = true;
273            }
274            return true;
275
276        default:
277            return false;
278    }
279}
280
281void NuPlayer::onMessageReceived(const sp<AMessage> &msg) {
282    switch (msg->what()) {
283        case kWhatSetDataSource:
284        {
285            ALOGV("kWhatSetDataSource");
286
287            CHECK(mSource == NULL);
288
289            sp<RefBase> obj;
290            CHECK(msg->findObject("source", &obj));
291
292            mSource = static_cast<Source *>(obj.get());
293
294            looper()->registerHandler(mSource);
295
296            CHECK(mDriver != NULL);
297            sp<NuPlayerDriver> driver = mDriver.promote();
298            if (driver != NULL) {
299                driver->notifySetDataSourceCompleted(OK);
300            }
301            break;
302        }
303
304        case kWhatPrepare:
305        {
306            mSource->prepareAsync();
307            break;
308        }
309
310        case kWhatPollDuration:
311        {
312            int32_t generation;
313            CHECK(msg->findInt32("generation", &generation));
314
315            if (generation != mPollDurationGeneration) {
316                // stale
317                break;
318            }
319
320            int64_t durationUs;
321            if (mDriver != NULL && mSource->getDuration(&durationUs) == OK) {
322                sp<NuPlayerDriver> driver = mDriver.promote();
323                if (driver != NULL) {
324                    driver->notifyDuration(durationUs);
325                }
326            }
327
328            msg->post(1000000ll);  // poll again in a second.
329            break;
330        }
331
332        case kWhatSetVideoNativeWindow:
333        {
334            ALOGV("kWhatSetVideoNativeWindow");
335
336            mDeferredActions.push_back(
337                    new SimpleAction(&NuPlayer::performDecoderShutdown));
338
339            sp<RefBase> obj;
340            CHECK(msg->findObject("native-window", &obj));
341
342            mDeferredActions.push_back(
343                    new SetSurfaceAction(
344                        static_cast<NativeWindowWrapper *>(obj.get())));
345
346            if (obj != NULL) {
347                // If there is a new surface texture, instantiate decoders
348                // again if possible.
349                mDeferredActions.push_back(
350                        new SimpleAction(&NuPlayer::performScanSources));
351            }
352
353            processDeferredActions();
354            break;
355        }
356
357        case kWhatSetAudioSink:
358        {
359            ALOGV("kWhatSetAudioSink");
360
361            sp<RefBase> obj;
362            CHECK(msg->findObject("sink", &obj));
363
364            mAudioSink = static_cast<MediaPlayerBase::AudioSink *>(obj.get());
365            break;
366        }
367
368        case kWhatStart:
369        {
370            ALOGV("kWhatStart");
371
372            mVideoIsAVC = false;
373            mAudioEOS = false;
374            mVideoEOS = false;
375            mSkipRenderingAudioUntilMediaTimeUs = -1;
376            mSkipRenderingVideoUntilMediaTimeUs = -1;
377            mVideoLateByUs = 0;
378            mNumFramesTotal = 0;
379            mNumFramesDropped = 0;
380            mStarted = true;
381
382            mSource->start();
383
384            uint32_t flags = 0;
385
386            if (mSource->isRealTime()) {
387                flags |= Renderer::FLAG_REAL_TIME;
388            }
389
390            mRenderer = new Renderer(
391                    mAudioSink,
392                    new AMessage(kWhatRendererNotify, id()),
393                    flags);
394
395            looper()->registerHandler(mRenderer);
396
397            postScanSources();
398            break;
399        }
400
401        case kWhatScanSources:
402        {
403            int32_t generation;
404            CHECK(msg->findInt32("generation", &generation));
405            if (generation != mScanSourcesGeneration) {
406                // Drop obsolete msg.
407                break;
408            }
409
410            mScanSourcesPending = false;
411
412            ALOGV("scanning sources haveAudio=%d, haveVideo=%d",
413                 mAudioDecoder != NULL, mVideoDecoder != NULL);
414
415            bool mHadAnySourcesBefore =
416                (mAudioDecoder != NULL) || (mVideoDecoder != NULL);
417
418            if (mNativeWindow != NULL) {
419                instantiateDecoder(false, &mVideoDecoder);
420            }
421
422            if (mAudioSink != NULL) {
423                instantiateDecoder(true, &mAudioDecoder);
424            }
425
426            if (!mHadAnySourcesBefore
427                    && (mAudioDecoder != NULL || mVideoDecoder != NULL)) {
428                // This is the first time we've found anything playable.
429
430                if (mSourceFlags & Source::FLAG_DYNAMIC_DURATION) {
431                    schedulePollDuration();
432                }
433            }
434
435            status_t err;
436            if ((err = mSource->feedMoreTSData()) != OK) {
437                if (mAudioDecoder == NULL && mVideoDecoder == NULL) {
438                    // We're not currently decoding anything (no audio or
439                    // video tracks found) and we just ran out of input data.
440
441                    if (err == ERROR_END_OF_STREAM) {
442                        notifyListener(MEDIA_PLAYBACK_COMPLETE, 0, 0);
443                    } else {
444                        notifyListener(MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, err);
445                    }
446                }
447                break;
448            }
449
450            if ((mAudioDecoder == NULL && mAudioSink != NULL)
451                    || (mVideoDecoder == NULL && mNativeWindow != NULL)) {
452                msg->post(100000ll);
453                mScanSourcesPending = true;
454            }
455            break;
456        }
457
458        case kWhatVideoNotify:
459        case kWhatAudioNotify:
460        {
461            bool audio = msg->what() == kWhatAudioNotify;
462
463            sp<AMessage> codecRequest;
464            CHECK(msg->findMessage("codec-request", &codecRequest));
465
466            int32_t what;
467            CHECK(codecRequest->findInt32("what", &what));
468
469            if (what == ACodec::kWhatFillThisBuffer) {
470                status_t err = feedDecoderInputData(
471                        audio, codecRequest);
472
473                if (err == -EWOULDBLOCK) {
474                    if (mSource->feedMoreTSData() == OK) {
475                        msg->post(10000ll);
476                    }
477                }
478            } else if (what == ACodec::kWhatEOS) {
479                int32_t err;
480                CHECK(codecRequest->findInt32("err", &err));
481
482                if (err == ERROR_END_OF_STREAM) {
483                    ALOGV("got %s decoder EOS", audio ? "audio" : "video");
484                } else {
485                    ALOGV("got %s decoder EOS w/ error %d",
486                         audio ? "audio" : "video",
487                         err);
488                }
489
490                mRenderer->queueEOS(audio, err);
491            } else if (what == ACodec::kWhatFlushCompleted) {
492                bool needShutdown;
493
494                if (audio) {
495                    CHECK(IsFlushingState(mFlushingAudio, &needShutdown));
496                    mFlushingAudio = FLUSHED;
497                } else {
498                    CHECK(IsFlushingState(mFlushingVideo, &needShutdown));
499                    mFlushingVideo = FLUSHED;
500
501                    mVideoLateByUs = 0;
502                }
503
504                ALOGV("decoder %s flush completed", audio ? "audio" : "video");
505
506                if (needShutdown) {
507                    ALOGV("initiating %s decoder shutdown",
508                         audio ? "audio" : "video");
509
510                    (audio ? mAudioDecoder : mVideoDecoder)->initiateShutdown();
511
512                    if (audio) {
513                        mFlushingAudio = SHUTTING_DOWN_DECODER;
514                    } else {
515                        mFlushingVideo = SHUTTING_DOWN_DECODER;
516                    }
517                }
518
519                finishFlushIfPossible();
520            } else if (what == ACodec::kWhatOutputFormatChanged) {
521                if (audio) {
522                    int32_t numChannels;
523                    CHECK(codecRequest->findInt32(
524                                "channel-count", &numChannels));
525
526                    int32_t sampleRate;
527                    CHECK(codecRequest->findInt32("sample-rate", &sampleRate));
528
529                    ALOGV("Audio output format changed to %d Hz, %d channels",
530                         sampleRate, numChannels);
531
532                    mAudioSink->close();
533
534                    audio_output_flags_t flags;
535                    int64_t durationUs;
536                    // FIXME: we should handle the case where the video decoder
537                    // is created after we receive the format change indication.
538                    // Current code will just make that we select deep buffer
539                    // with video which should not be a problem as it should
540                    // not prevent from keeping A/V sync.
541                    if (mVideoDecoder == NULL &&
542                            mSource->getDuration(&durationUs) == OK &&
543                            durationUs
544                                > AUDIO_SINK_MIN_DEEP_BUFFER_DURATION_US) {
545                        flags = AUDIO_OUTPUT_FLAG_DEEP_BUFFER;
546                    } else {
547                        flags = AUDIO_OUTPUT_FLAG_NONE;
548                    }
549
550                    int32_t channelMask;
551                    if (!codecRequest->findInt32("channel-mask", &channelMask)) {
552                        channelMask = CHANNEL_MASK_USE_CHANNEL_ORDER;
553                    }
554
555                    CHECK_EQ(mAudioSink->open(
556                                sampleRate,
557                                numChannels,
558                                (audio_channel_mask_t)channelMask,
559                                AUDIO_FORMAT_PCM_16_BIT,
560                                8 /* bufferCount */,
561                                NULL,
562                                NULL,
563                                flags),
564                             (status_t)OK);
565                    mAudioSink->start();
566
567                    mRenderer->signalAudioSinkChanged();
568                } else {
569                    // video
570
571                    int32_t width, height;
572                    CHECK(codecRequest->findInt32("width", &width));
573                    CHECK(codecRequest->findInt32("height", &height));
574
575                    int32_t cropLeft, cropTop, cropRight, cropBottom;
576                    CHECK(codecRequest->findRect(
577                                "crop",
578                                &cropLeft, &cropTop, &cropRight, &cropBottom));
579
580                    int32_t displayWidth = cropRight - cropLeft + 1;
581                    int32_t displayHeight = cropBottom - cropTop + 1;
582
583                    ALOGV("Video output format changed to %d x %d "
584                         "(crop: %d x %d @ (%d, %d))",
585                         width, height,
586                         displayWidth,
587                         displayHeight,
588                         cropLeft, cropTop);
589
590                    sp<AMessage> videoInputFormat =
591                        mSource->getFormat(false /* audio */);
592
593                    // Take into account sample aspect ratio if necessary:
594                    int32_t sarWidth, sarHeight;
595                    if (videoInputFormat->findInt32("sar-width", &sarWidth)
596                            && videoInputFormat->findInt32(
597                                "sar-height", &sarHeight)) {
598                        ALOGV("Sample aspect ratio %d : %d",
599                              sarWidth, sarHeight);
600
601                        displayWidth = (displayWidth * sarWidth) / sarHeight;
602
603                        ALOGV("display dimensions %d x %d",
604                              displayWidth, displayHeight);
605                    }
606
607                    notifyListener(
608                            MEDIA_SET_VIDEO_SIZE, displayWidth, displayHeight);
609                }
610            } else if (what == ACodec::kWhatShutdownCompleted) {
611                ALOGV("%s shutdown completed", audio ? "audio" : "video");
612                if (audio) {
613                    mAudioDecoder.clear();
614
615                    CHECK_EQ((int)mFlushingAudio, (int)SHUTTING_DOWN_DECODER);
616                    mFlushingAudio = SHUT_DOWN;
617                } else {
618                    mVideoDecoder.clear();
619
620                    CHECK_EQ((int)mFlushingVideo, (int)SHUTTING_DOWN_DECODER);
621                    mFlushingVideo = SHUT_DOWN;
622                }
623
624                finishFlushIfPossible();
625            } else if (what == ACodec::kWhatError) {
626                ALOGE("Received error from %s decoder, aborting playback.",
627                     audio ? "audio" : "video");
628
629                mRenderer->queueEOS(audio, UNKNOWN_ERROR);
630            } else if (what == ACodec::kWhatDrainThisBuffer) {
631                renderBuffer(audio, codecRequest);
632            } else if (what != ACodec::kWhatComponentAllocated
633                    && what != ACodec::kWhatComponentConfigured
634                    && what != ACodec::kWhatBuffersAllocated) {
635                ALOGV("Unhandled codec notification %d '%c%c%c%c'.",
636                      what,
637                      what >> 24,
638                      (what >> 16) & 0xff,
639                      (what >> 8) & 0xff,
640                      what & 0xff);
641            }
642
643            break;
644        }
645
646        case kWhatRendererNotify:
647        {
648            int32_t what;
649            CHECK(msg->findInt32("what", &what));
650
651            if (what == Renderer::kWhatEOS) {
652                int32_t audio;
653                CHECK(msg->findInt32("audio", &audio));
654
655                int32_t finalResult;
656                CHECK(msg->findInt32("finalResult", &finalResult));
657
658                if (audio) {
659                    mAudioEOS = true;
660                } else {
661                    mVideoEOS = true;
662                }
663
664                if (finalResult == ERROR_END_OF_STREAM) {
665                    ALOGV("reached %s EOS", audio ? "audio" : "video");
666                } else {
667                    ALOGE("%s track encountered an error (%d)",
668                         audio ? "audio" : "video", finalResult);
669
670                    notifyListener(
671                            MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, finalResult);
672                }
673
674                if ((mAudioEOS || mAudioDecoder == NULL)
675                        && (mVideoEOS || mVideoDecoder == NULL)) {
676                    notifyListener(MEDIA_PLAYBACK_COMPLETE, 0, 0);
677                }
678            } else if (what == Renderer::kWhatPosition) {
679                int64_t positionUs;
680                CHECK(msg->findInt64("positionUs", &positionUs));
681
682                CHECK(msg->findInt64("videoLateByUs", &mVideoLateByUs));
683
684                if (mDriver != NULL) {
685                    sp<NuPlayerDriver> driver = mDriver.promote();
686                    if (driver != NULL) {
687                        driver->notifyPosition(positionUs);
688
689                        driver->notifyFrameStats(
690                                mNumFramesTotal, mNumFramesDropped);
691                    }
692                }
693            } else if (what == Renderer::kWhatFlushComplete) {
694                int32_t audio;
695                CHECK(msg->findInt32("audio", &audio));
696
697                ALOGV("renderer %s flush completed.", audio ? "audio" : "video");
698            } else if (what == Renderer::kWhatVideoRenderingStart) {
699                notifyListener(MEDIA_INFO, MEDIA_INFO_RENDERING_START, 0);
700            }
701            break;
702        }
703
704        case kWhatMoreDataQueued:
705        {
706            break;
707        }
708
709        case kWhatReset:
710        {
711            ALOGV("kWhatReset");
712
713            mDeferredActions.push_back(
714                    new SimpleAction(&NuPlayer::performDecoderShutdown));
715
716            mDeferredActions.push_back(
717                    new SimpleAction(&NuPlayer::performReset));
718
719            processDeferredActions();
720            break;
721        }
722
723        case kWhatSeek:
724        {
725            int64_t seekTimeUs;
726            CHECK(msg->findInt64("seekTimeUs", &seekTimeUs));
727
728            ALOGV("kWhatSeek seekTimeUs=%lld us", seekTimeUs);
729
730            mDeferredActions.push_back(
731                    new SimpleAction(&NuPlayer::performDecoderFlush));
732
733            mDeferredActions.push_back(new SeekAction(seekTimeUs));
734
735            processDeferredActions();
736            break;
737        }
738
739        case kWhatPause:
740        {
741            CHECK(mRenderer != NULL);
742            mSource->pause();
743            mRenderer->pause();
744            break;
745        }
746
747        case kWhatResume:
748        {
749            CHECK(mRenderer != NULL);
750            mSource->resume();
751            mRenderer->resume();
752            break;
753        }
754
755        case kWhatSourceNotify:
756        {
757            onSourceNotify(msg);
758            break;
759        }
760
761        default:
762            TRESPASS();
763            break;
764    }
765}
766
767void NuPlayer::finishFlushIfPossible() {
768    if (mFlushingAudio != FLUSHED && mFlushingAudio != SHUT_DOWN) {
769        return;
770    }
771
772    if (mFlushingVideo != FLUSHED && mFlushingVideo != SHUT_DOWN) {
773        return;
774    }
775
776    ALOGV("both audio and video are flushed now.");
777
778    if (mTimeDiscontinuityPending) {
779        mRenderer->signalTimeDiscontinuity();
780        mTimeDiscontinuityPending = false;
781    }
782
783    if (mAudioDecoder != NULL) {
784        mAudioDecoder->signalResume();
785    }
786
787    if (mVideoDecoder != NULL) {
788        mVideoDecoder->signalResume();
789    }
790
791    mFlushingAudio = NONE;
792    mFlushingVideo = NONE;
793
794    processDeferredActions();
795}
796
797void NuPlayer::postScanSources() {
798    if (mScanSourcesPending) {
799        return;
800    }
801
802    sp<AMessage> msg = new AMessage(kWhatScanSources, id());
803    msg->setInt32("generation", mScanSourcesGeneration);
804    msg->post();
805
806    mScanSourcesPending = true;
807}
808
809status_t NuPlayer::instantiateDecoder(bool audio, sp<Decoder> *decoder) {
810    if (*decoder != NULL) {
811        return OK;
812    }
813
814    sp<AMessage> format = mSource->getFormat(audio);
815
816    if (format == NULL) {
817        return -EWOULDBLOCK;
818    }
819
820    if (!audio) {
821        AString mime;
822        CHECK(format->findString("mime", &mime));
823        mVideoIsAVC = !strcasecmp(MEDIA_MIMETYPE_VIDEO_AVC, mime.c_str());
824    }
825
826    sp<AMessage> notify =
827        new AMessage(audio ? kWhatAudioNotify : kWhatVideoNotify,
828                     id());
829
830    *decoder = audio ? new Decoder(notify) :
831                       new Decoder(notify, mNativeWindow);
832    looper()->registerHandler(*decoder);
833
834    (*decoder)->configure(format);
835
836    int64_t durationUs;
837    if (mDriver != NULL && mSource->getDuration(&durationUs) == OK) {
838        sp<NuPlayerDriver> driver = mDriver.promote();
839        if (driver != NULL) {
840            driver->notifyDuration(durationUs);
841        }
842    }
843
844    return OK;
845}
846
847status_t NuPlayer::feedDecoderInputData(bool audio, const sp<AMessage> &msg) {
848    sp<AMessage> reply;
849    CHECK(msg->findMessage("reply", &reply));
850
851    if ((audio && IsFlushingState(mFlushingAudio))
852            || (!audio && IsFlushingState(mFlushingVideo))) {
853        reply->setInt32("err", INFO_DISCONTINUITY);
854        reply->post();
855        return OK;
856    }
857
858    sp<ABuffer> accessUnit;
859
860    bool dropAccessUnit;
861    do {
862        status_t err = mSource->dequeueAccessUnit(audio, &accessUnit);
863
864        if (err == -EWOULDBLOCK) {
865            return err;
866        } else if (err != OK) {
867            if (err == INFO_DISCONTINUITY) {
868                int32_t type;
869                CHECK(accessUnit->meta()->findInt32("discontinuity", &type));
870
871                bool formatChange =
872                    (audio &&
873                     (type & ATSParser::DISCONTINUITY_AUDIO_FORMAT))
874                    || (!audio &&
875                            (type & ATSParser::DISCONTINUITY_VIDEO_FORMAT));
876
877                bool timeChange = (type & ATSParser::DISCONTINUITY_TIME) != 0;
878
879                ALOGI("%s discontinuity (formatChange=%d, time=%d)",
880                     audio ? "audio" : "video", formatChange, timeChange);
881
882                if (audio) {
883                    mSkipRenderingAudioUntilMediaTimeUs = -1;
884                } else {
885                    mSkipRenderingVideoUntilMediaTimeUs = -1;
886                }
887
888                if (timeChange) {
889                    sp<AMessage> extra;
890                    if (accessUnit->meta()->findMessage("extra", &extra)
891                            && extra != NULL) {
892                        int64_t resumeAtMediaTimeUs;
893                        if (extra->findInt64(
894                                    "resume-at-mediatimeUs", &resumeAtMediaTimeUs)) {
895                            ALOGI("suppressing rendering of %s until %lld us",
896                                    audio ? "audio" : "video", resumeAtMediaTimeUs);
897
898                            if (audio) {
899                                mSkipRenderingAudioUntilMediaTimeUs =
900                                    resumeAtMediaTimeUs;
901                            } else {
902                                mSkipRenderingVideoUntilMediaTimeUs =
903                                    resumeAtMediaTimeUs;
904                            }
905                        }
906                    }
907                }
908
909                mTimeDiscontinuityPending =
910                    mTimeDiscontinuityPending || timeChange;
911
912                if (formatChange || timeChange) {
913                    if (mFlushingAudio == NONE && mFlushingVideo == NONE) {
914                        // And we'll resume scanning sources once we're done
915                        // flushing.
916                        mDeferredActions.push_front(
917                                new SimpleAction(
918                                    &NuPlayer::performScanSources));
919                    }
920
921                    flushDecoder(audio, formatChange);
922                } else {
923                    // This stream is unaffected by the discontinuity
924
925                    if (audio) {
926                        mFlushingAudio = FLUSHED;
927                    } else {
928                        mFlushingVideo = FLUSHED;
929                    }
930
931                    finishFlushIfPossible();
932
933                    return -EWOULDBLOCK;
934                }
935            }
936
937            reply->setInt32("err", err);
938            reply->post();
939            return OK;
940        }
941
942        if (!audio) {
943            ++mNumFramesTotal;
944        }
945
946        dropAccessUnit = false;
947        if (!audio
948                && mVideoLateByUs > 100000ll
949                && mVideoIsAVC
950                && !IsAVCReferenceFrame(accessUnit)) {
951            dropAccessUnit = true;
952            ++mNumFramesDropped;
953        }
954    } while (dropAccessUnit);
955
956    // ALOGV("returned a valid buffer of %s data", audio ? "audio" : "video");
957
958#if 0
959    int64_t mediaTimeUs;
960    CHECK(accessUnit->meta()->findInt64("timeUs", &mediaTimeUs));
961    ALOGV("feeding %s input buffer at media time %.2f secs",
962         audio ? "audio" : "video",
963         mediaTimeUs / 1E6);
964#endif
965
966    reply->setBuffer("buffer", accessUnit);
967    reply->post();
968
969    return OK;
970}
971
972void NuPlayer::renderBuffer(bool audio, const sp<AMessage> &msg) {
973    // ALOGV("renderBuffer %s", audio ? "audio" : "video");
974
975    sp<AMessage> reply;
976    CHECK(msg->findMessage("reply", &reply));
977
978    if (IsFlushingState(audio ? mFlushingAudio : mFlushingVideo)) {
979        // We're currently attempting to flush the decoder, in order
980        // to complete this, the decoder wants all its buffers back,
981        // so we don't want any output buffers it sent us (from before
982        // we initiated the flush) to be stuck in the renderer's queue.
983
984        ALOGV("we're still flushing the %s decoder, sending its output buffer"
985             " right back.", audio ? "audio" : "video");
986
987        reply->post();
988        return;
989    }
990
991    sp<ABuffer> buffer;
992    CHECK(msg->findBuffer("buffer", &buffer));
993
994    int64_t &skipUntilMediaTimeUs =
995        audio
996            ? mSkipRenderingAudioUntilMediaTimeUs
997            : mSkipRenderingVideoUntilMediaTimeUs;
998
999    if (skipUntilMediaTimeUs >= 0) {
1000        int64_t mediaTimeUs;
1001        CHECK(buffer->meta()->findInt64("timeUs", &mediaTimeUs));
1002
1003        if (mediaTimeUs < skipUntilMediaTimeUs) {
1004            ALOGV("dropping %s buffer at time %lld as requested.",
1005                 audio ? "audio" : "video",
1006                 mediaTimeUs);
1007
1008            reply->post();
1009            return;
1010        }
1011
1012        skipUntilMediaTimeUs = -1;
1013    }
1014
1015    mRenderer->queueBuffer(audio, buffer, reply);
1016}
1017
1018void NuPlayer::notifyListener(int msg, int ext1, int ext2) {
1019    if (mDriver == NULL) {
1020        return;
1021    }
1022
1023    sp<NuPlayerDriver> driver = mDriver.promote();
1024
1025    if (driver == NULL) {
1026        return;
1027    }
1028
1029    driver->notifyListener(msg, ext1, ext2);
1030}
1031
1032void NuPlayer::flushDecoder(bool audio, bool needShutdown) {
1033    if ((audio && mAudioDecoder == NULL) || (!audio && mVideoDecoder == NULL)) {
1034        ALOGI("flushDecoder %s without decoder present",
1035             audio ? "audio" : "video");
1036    }
1037
1038    // Make sure we don't continue to scan sources until we finish flushing.
1039    ++mScanSourcesGeneration;
1040    mScanSourcesPending = false;
1041
1042    (audio ? mAudioDecoder : mVideoDecoder)->signalFlush();
1043    mRenderer->flush(audio);
1044
1045    FlushStatus newStatus =
1046        needShutdown ? FLUSHING_DECODER_SHUTDOWN : FLUSHING_DECODER;
1047
1048    if (audio) {
1049        CHECK(mFlushingAudio == NONE
1050                || mFlushingAudio == AWAITING_DISCONTINUITY);
1051
1052        mFlushingAudio = newStatus;
1053
1054        if (mFlushingVideo == NONE) {
1055            mFlushingVideo = (mVideoDecoder != NULL)
1056                ? AWAITING_DISCONTINUITY
1057                : FLUSHED;
1058        }
1059    } else {
1060        CHECK(mFlushingVideo == NONE
1061                || mFlushingVideo == AWAITING_DISCONTINUITY);
1062
1063        mFlushingVideo = newStatus;
1064
1065        if (mFlushingAudio == NONE) {
1066            mFlushingAudio = (mAudioDecoder != NULL)
1067                ? AWAITING_DISCONTINUITY
1068                : FLUSHED;
1069        }
1070    }
1071}
1072
1073sp<AMessage> NuPlayer::Source::getFormat(bool audio) {
1074    sp<MetaData> meta = getFormatMeta(audio);
1075
1076    if (meta == NULL) {
1077        return NULL;
1078    }
1079
1080    sp<AMessage> msg = new AMessage;
1081
1082    if(convertMetaDataToMessage(meta, &msg) == OK) {
1083        return msg;
1084    }
1085    return NULL;
1086}
1087
1088status_t NuPlayer::setVideoScalingMode(int32_t mode) {
1089    mVideoScalingMode = mode;
1090    if (mNativeWindow != NULL) {
1091        status_t ret = native_window_set_scaling_mode(
1092                mNativeWindow->getNativeWindow().get(), mVideoScalingMode);
1093        if (ret != OK) {
1094            ALOGE("Failed to set scaling mode (%d): %s",
1095                -ret, strerror(-ret));
1096            return ret;
1097        }
1098    }
1099    return OK;
1100}
1101
1102void NuPlayer::schedulePollDuration() {
1103    sp<AMessage> msg = new AMessage(kWhatPollDuration, id());
1104    msg->setInt32("generation", mPollDurationGeneration);
1105    msg->post();
1106}
1107
1108void NuPlayer::cancelPollDuration() {
1109    ++mPollDurationGeneration;
1110}
1111
1112void NuPlayer::processDeferredActions() {
1113    while (!mDeferredActions.empty()) {
1114        // We won't execute any deferred actions until we're no longer in
1115        // an intermediate state, i.e. one more more decoders are currently
1116        // flushing or shutting down.
1117
1118        if (mRenderer != NULL) {
1119            // There's an edge case where the renderer owns all output
1120            // buffers and is paused, therefore the decoder will not read
1121            // more input data and will never encounter the matching
1122            // discontinuity. To avoid this, we resume the renderer.
1123
1124            if (mFlushingAudio == AWAITING_DISCONTINUITY
1125                    || mFlushingVideo == AWAITING_DISCONTINUITY) {
1126                mRenderer->resume();
1127            }
1128        }
1129
1130        if (mFlushingAudio != NONE || mFlushingVideo != NONE) {
1131            // We're currently flushing, postpone the reset until that's
1132            // completed.
1133
1134            ALOGV("postponing action mFlushingAudio=%d, mFlushingVideo=%d",
1135                  mFlushingAudio, mFlushingVideo);
1136
1137            break;
1138        }
1139
1140        sp<Action> action = *mDeferredActions.begin();
1141        mDeferredActions.erase(mDeferredActions.begin());
1142
1143        action->execute(this);
1144    }
1145}
1146
1147void NuPlayer::performSeek(int64_t seekTimeUs) {
1148    ALOGV("performSeek seekTimeUs=%lld us (%.2f secs)",
1149          seekTimeUs,
1150          seekTimeUs / 1E6);
1151
1152    mSource->seekTo(seekTimeUs);
1153
1154    if (mDriver != NULL) {
1155        sp<NuPlayerDriver> driver = mDriver.promote();
1156        if (driver != NULL) {
1157            driver->notifyPosition(seekTimeUs);
1158            driver->notifySeekComplete();
1159        }
1160    }
1161
1162    // everything's flushed, continue playback.
1163}
1164
1165void NuPlayer::performDecoderFlush() {
1166    ALOGV("performDecoderFlush");
1167
1168    if (mAudioDecoder != NULL && mVideoDecoder == NULL) {
1169        return;
1170    }
1171
1172    mTimeDiscontinuityPending = true;
1173
1174    if (mAudioDecoder != NULL) {
1175        flushDecoder(true /* audio */, false /* needShutdown */);
1176    }
1177
1178    if (mVideoDecoder != NULL) {
1179        flushDecoder(false /* audio */, false /* needShutdown */);
1180    }
1181}
1182
1183void NuPlayer::performDecoderShutdown() {
1184    ALOGV("performDecoderShutdown");
1185
1186    if (mAudioDecoder != NULL && mVideoDecoder == NULL) {
1187        return;
1188    }
1189
1190    mTimeDiscontinuityPending = true;
1191
1192    if (mAudioDecoder != NULL) {
1193        flushDecoder(true /* audio */, true /* needShutdown */);
1194    }
1195
1196    if (mVideoDecoder != NULL) {
1197        flushDecoder(false /* audio */, true /* needShutdown */);
1198    }
1199}
1200
1201void NuPlayer::performReset() {
1202    ALOGV("performReset");
1203
1204    CHECK(mAudioDecoder == NULL);
1205    CHECK(mVideoDecoder == NULL);
1206
1207    cancelPollDuration();
1208
1209    ++mScanSourcesGeneration;
1210    mScanSourcesPending = false;
1211
1212    mRenderer.clear();
1213
1214    if (mSource != NULL) {
1215        mSource->stop();
1216
1217        looper()->unregisterHandler(mSource->id());
1218
1219        mSource.clear();
1220    }
1221
1222    if (mDriver != NULL) {
1223        sp<NuPlayerDriver> driver = mDriver.promote();
1224        if (driver != NULL) {
1225            driver->notifyResetComplete();
1226        }
1227    }
1228
1229    mStarted = false;
1230}
1231
1232void NuPlayer::performScanSources() {
1233    ALOGV("performScanSources");
1234
1235    if (!mStarted) {
1236        return;
1237    }
1238
1239    if (mAudioDecoder == NULL || mVideoDecoder == NULL) {
1240        postScanSources();
1241    }
1242}
1243
1244void NuPlayer::performSetSurface(const sp<NativeWindowWrapper> &wrapper) {
1245    ALOGV("performSetSurface");
1246
1247    mNativeWindow = wrapper;
1248
1249    // XXX - ignore error from setVideoScalingMode for now
1250    setVideoScalingMode(mVideoScalingMode);
1251
1252    if (mDriver != NULL) {
1253        sp<NuPlayerDriver> driver = mDriver.promote();
1254        if (driver != NULL) {
1255            driver->notifySetSurfaceComplete();
1256        }
1257    }
1258}
1259
1260void NuPlayer::onSourceNotify(const sp<AMessage> &msg) {
1261    int32_t what;
1262    CHECK(msg->findInt32("what", &what));
1263
1264    switch (what) {
1265        case Source::kWhatPrepared:
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            break;
1275        }
1276
1277        case Source::kWhatFlagsChanged:
1278        {
1279            uint32_t flags;
1280            CHECK(msg->findInt32("flags", (int32_t *)&flags));
1281
1282            if ((mSourceFlags & Source::FLAG_DYNAMIC_DURATION)
1283                    && (!(flags & Source::FLAG_DYNAMIC_DURATION))) {
1284                cancelPollDuration();
1285            } else if (!(mSourceFlags & Source::FLAG_DYNAMIC_DURATION)
1286                    && (flags & Source::FLAG_DYNAMIC_DURATION)
1287                    && (mAudioDecoder != NULL || mVideoDecoder != NULL)) {
1288                schedulePollDuration();
1289            }
1290
1291            mSourceFlags = flags;
1292            break;
1293        }
1294
1295        case Source::kWhatVideoSizeChanged:
1296        {
1297            int32_t width, height;
1298            CHECK(msg->findInt32("width", &width));
1299            CHECK(msg->findInt32("height", &height));
1300
1301            notifyListener(MEDIA_SET_VIDEO_SIZE, width, height);
1302            break;
1303        }
1304
1305        case Source::kWhatBufferingStart:
1306        {
1307            notifyListener(MEDIA_INFO, MEDIA_INFO_BUFFERING_START, 0);
1308            break;
1309        }
1310
1311        case Source::kWhatBufferingEnd:
1312        {
1313            notifyListener(MEDIA_INFO, MEDIA_INFO_BUFFERING_END, 0);
1314            break;
1315        }
1316
1317        default:
1318            TRESPASS();
1319    }
1320}
1321
1322////////////////////////////////////////////////////////////////////////////////
1323
1324void NuPlayer::Source::notifyFlagsChanged(uint32_t flags) {
1325    sp<AMessage> notify = dupNotify();
1326    notify->setInt32("what", kWhatFlagsChanged);
1327    notify->setInt32("flags", flags);
1328    notify->post();
1329}
1330
1331void NuPlayer::Source::notifyVideoSizeChanged(int32_t width, int32_t height) {
1332    sp<AMessage> notify = dupNotify();
1333    notify->setInt32("what", kWhatVideoSizeChanged);
1334    notify->setInt32("width", width);
1335    notify->setInt32("height", height);
1336    notify->post();
1337}
1338
1339void NuPlayer::Source::notifyPrepared(status_t err) {
1340    sp<AMessage> notify = dupNotify();
1341    notify->setInt32("what", kWhatPrepared);
1342    notify->setInt32("err", err);
1343    notify->post();
1344}
1345
1346void NuPlayer::Source::onMessageReceived(const sp<AMessage> &msg) {
1347    TRESPASS();
1348}
1349
1350}  // namespace android
1351