NuPlayer.cpp revision ec0c597cabf169ca646bcea5faac1bd81ed4484d 
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 SurfaceTextureClient(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            mRenderer = new Renderer(
385                    mAudioSink,
386                    new AMessage(kWhatRendererNotify, id()));
387
388            looper()->registerHandler(mRenderer);
389
390            postScanSources();
391            break;
392        }
393
394        case kWhatScanSources:
395        {
396            int32_t generation;
397            CHECK(msg->findInt32("generation", &generation));
398            if (generation != mScanSourcesGeneration) {
399                // Drop obsolete msg.
400                break;
401            }
402
403            mScanSourcesPending = false;
404
405            ALOGV("scanning sources haveAudio=%d, haveVideo=%d",
406                 mAudioDecoder != NULL, mVideoDecoder != NULL);
407
408            bool mHadAnySourcesBefore =
409                (mAudioDecoder != NULL) || (mVideoDecoder != NULL);
410
411            if (mNativeWindow != NULL) {
412                instantiateDecoder(false, &mVideoDecoder);
413            }
414
415            if (mAudioSink != NULL) {
416                instantiateDecoder(true, &mAudioDecoder);
417            }
418
419            if (!mHadAnySourcesBefore
420                    && (mAudioDecoder != NULL || mVideoDecoder != NULL)) {
421                // This is the first time we've found anything playable.
422
423                if (mSourceFlags & Source::FLAG_DYNAMIC_DURATION) {
424                    schedulePollDuration();
425                }
426            }
427
428            status_t err;
429            if ((err = mSource->feedMoreTSData()) != OK) {
430                if (mAudioDecoder == NULL && mVideoDecoder == NULL) {
431                    // We're not currently decoding anything (no audio or
432                    // video tracks found) and we just ran out of input data.
433
434                    if (err == ERROR_END_OF_STREAM) {
435                        notifyListener(MEDIA_PLAYBACK_COMPLETE, 0, 0);
436                    } else {
437                        notifyListener(MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, err);
438                    }
439                }
440                break;
441            }
442
443            if ((mAudioDecoder == NULL && mAudioSink != NULL)
444                    || (mVideoDecoder == NULL && mNativeWindow != NULL)) {
445                msg->post(100000ll);
446                mScanSourcesPending = true;
447            }
448            break;
449        }
450
451        case kWhatVideoNotify:
452        case kWhatAudioNotify:
453        {
454            bool audio = msg->what() == kWhatAudioNotify;
455
456            sp<AMessage> codecRequest;
457            CHECK(msg->findMessage("codec-request", &codecRequest));
458
459            int32_t what;
460            CHECK(codecRequest->findInt32("what", &what));
461
462            if (what == ACodec::kWhatFillThisBuffer) {
463                status_t err = feedDecoderInputData(
464                        audio, codecRequest);
465
466                if (err == -EWOULDBLOCK) {
467                    if (mSource->feedMoreTSData() == OK) {
468                        msg->post(10000ll);
469                    }
470                }
471            } else if (what == ACodec::kWhatEOS) {
472                int32_t err;
473                CHECK(codecRequest->findInt32("err", &err));
474
475                if (err == ERROR_END_OF_STREAM) {
476                    ALOGV("got %s decoder EOS", audio ? "audio" : "video");
477                } else {
478                    ALOGV("got %s decoder EOS w/ error %d",
479                         audio ? "audio" : "video",
480                         err);
481                }
482
483                mRenderer->queueEOS(audio, err);
484            } else if (what == ACodec::kWhatFlushCompleted) {
485                bool needShutdown;
486
487                if (audio) {
488                    CHECK(IsFlushingState(mFlushingAudio, &needShutdown));
489                    mFlushingAudio = FLUSHED;
490                } else {
491                    CHECK(IsFlushingState(mFlushingVideo, &needShutdown));
492                    mFlushingVideo = FLUSHED;
493
494                    mVideoLateByUs = 0;
495                }
496
497                ALOGV("decoder %s flush completed", audio ? "audio" : "video");
498
499                if (needShutdown) {
500                    ALOGV("initiating %s decoder shutdown",
501                         audio ? "audio" : "video");
502
503                    (audio ? mAudioDecoder : mVideoDecoder)->initiateShutdown();
504
505                    if (audio) {
506                        mFlushingAudio = SHUTTING_DOWN_DECODER;
507                    } else {
508                        mFlushingVideo = SHUTTING_DOWN_DECODER;
509                    }
510                }
511
512                finishFlushIfPossible();
513            } else if (what == ACodec::kWhatOutputFormatChanged) {
514                if (audio) {
515                    int32_t numChannels;
516                    CHECK(codecRequest->findInt32(
517                                "channel-count", &numChannels));
518
519                    int32_t sampleRate;
520                    CHECK(codecRequest->findInt32("sample-rate", &sampleRate));
521
522                    ALOGV("Audio output format changed to %d Hz, %d channels",
523                         sampleRate, numChannels);
524
525                    mAudioSink->close();
526
527                    audio_output_flags_t flags;
528                    int64_t durationUs;
529                    // FIXME: we should handle the case where the video decoder
530                    // is created after we receive the format change indication.
531                    // Current code will just make that we select deep buffer
532                    // with video which should not be a problem as it should
533                    // not prevent from keeping A/V sync.
534                    if (mVideoDecoder == NULL &&
535                            mSource->getDuration(&durationUs) == OK &&
536                            durationUs
537                                > AUDIO_SINK_MIN_DEEP_BUFFER_DURATION_US) {
538                        flags = AUDIO_OUTPUT_FLAG_DEEP_BUFFER;
539                    } else {
540                        flags = AUDIO_OUTPUT_FLAG_NONE;
541                    }
542
543                    int32_t channelMask;
544                    if (!codecRequest->findInt32("channel-mask", &channelMask)) {
545                        channelMask = CHANNEL_MASK_USE_CHANNEL_ORDER;
546                    }
547
548                    CHECK_EQ(mAudioSink->open(
549                                sampleRate,
550                                numChannels,
551                                (audio_channel_mask_t)channelMask,
552                                AUDIO_FORMAT_PCM_16_BIT,
553                                8 /* bufferCount */,
554                                NULL,
555                                NULL,
556                                flags),
557                             (status_t)OK);
558                    mAudioSink->start();
559
560                    mRenderer->signalAudioSinkChanged();
561                } else {
562                    // video
563
564                    int32_t width, height;
565                    CHECK(codecRequest->findInt32("width", &width));
566                    CHECK(codecRequest->findInt32("height", &height));
567
568                    int32_t cropLeft, cropTop, cropRight, cropBottom;
569                    CHECK(codecRequest->findRect(
570                                "crop",
571                                &cropLeft, &cropTop, &cropRight, &cropBottom));
572
573                    int32_t displayWidth = cropRight - cropLeft + 1;
574                    int32_t displayHeight = cropBottom - cropTop + 1;
575
576                    ALOGV("Video output format changed to %d x %d "
577                         "(crop: %d x %d @ (%d, %d))",
578                         width, height,
579                         displayWidth,
580                         displayHeight,
581                         cropLeft, cropTop);
582
583                    sp<AMessage> videoInputFormat =
584                        mSource->getFormat(false /* audio */);
585
586                    // Take into account sample aspect ratio if necessary:
587                    int32_t sarWidth, sarHeight;
588                    if (videoInputFormat->findInt32("sar-width", &sarWidth)
589                            && videoInputFormat->findInt32(
590                                "sar-height", &sarHeight)) {
591                        ALOGV("Sample aspect ratio %d : %d",
592                              sarWidth, sarHeight);
593
594                        displayWidth = (displayWidth * sarWidth) / sarHeight;
595
596                        ALOGV("display dimensions %d x %d",
597                              displayWidth, displayHeight);
598                    }
599
600                    notifyListener(
601                            MEDIA_SET_VIDEO_SIZE, displayWidth, displayHeight);
602                }
603            } else if (what == ACodec::kWhatShutdownCompleted) {
604                ALOGV("%s shutdown completed", audio ? "audio" : "video");
605                if (audio) {
606                    mAudioDecoder.clear();
607
608                    CHECK_EQ((int)mFlushingAudio, (int)SHUTTING_DOWN_DECODER);
609                    mFlushingAudio = SHUT_DOWN;
610                } else {
611                    mVideoDecoder.clear();
612
613                    CHECK_EQ((int)mFlushingVideo, (int)SHUTTING_DOWN_DECODER);
614                    mFlushingVideo = SHUT_DOWN;
615                }
616
617                finishFlushIfPossible();
618            } else if (what == ACodec::kWhatError) {
619                ALOGE("Received error from %s decoder, aborting playback.",
620                     audio ? "audio" : "video");
621
622                mRenderer->queueEOS(audio, UNKNOWN_ERROR);
623            } else if (what == ACodec::kWhatDrainThisBuffer) {
624                renderBuffer(audio, codecRequest);
625            } else if (what != ACodec::kWhatComponentAllocated
626                    && what != ACodec::kWhatComponentConfigured
627                    && what != ACodec::kWhatBuffersAllocated) {
628                ALOGV("Unhandled codec notification %d '%c%c%c%c'.",
629                      what,
630                      what >> 24,
631                      (what >> 16) & 0xff,
632                      (what >> 8) & 0xff,
633                      what & 0xff);
634            }
635
636            break;
637        }
638
639        case kWhatRendererNotify:
640        {
641            int32_t what;
642            CHECK(msg->findInt32("what", &what));
643
644            if (what == Renderer::kWhatEOS) {
645                int32_t audio;
646                CHECK(msg->findInt32("audio", &audio));
647
648                int32_t finalResult;
649                CHECK(msg->findInt32("finalResult", &finalResult));
650
651                if (audio) {
652                    mAudioEOS = true;
653                } else {
654                    mVideoEOS = true;
655                }
656
657                if (finalResult == ERROR_END_OF_STREAM) {
658                    ALOGV("reached %s EOS", audio ? "audio" : "video");
659                } else {
660                    ALOGE("%s track encountered an error (%d)",
661                         audio ? "audio" : "video", finalResult);
662
663                    notifyListener(
664                            MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, finalResult);
665                }
666
667                if ((mAudioEOS || mAudioDecoder == NULL)
668                        && (mVideoEOS || mVideoDecoder == NULL)) {
669                    notifyListener(MEDIA_PLAYBACK_COMPLETE, 0, 0);
670                }
671            } else if (what == Renderer::kWhatPosition) {
672                int64_t positionUs;
673                CHECK(msg->findInt64("positionUs", &positionUs));
674
675                CHECK(msg->findInt64("videoLateByUs", &mVideoLateByUs));
676
677                if (mDriver != NULL) {
678                    sp<NuPlayerDriver> driver = mDriver.promote();
679                    if (driver != NULL) {
680                        driver->notifyPosition(positionUs);
681
682                        driver->notifyFrameStats(
683                                mNumFramesTotal, mNumFramesDropped);
684                    }
685                }
686            } else if (what == Renderer::kWhatFlushComplete) {
687                int32_t audio;
688                CHECK(msg->findInt32("audio", &audio));
689
690                ALOGV("renderer %s flush completed.", audio ? "audio" : "video");
691            } else if (what == Renderer::kWhatVideoRenderingStart) {
692                notifyListener(MEDIA_INFO, MEDIA_INFO_RENDERING_START, 0);
693            }
694            break;
695        }
696
697        case kWhatMoreDataQueued:
698        {
699            break;
700        }
701
702        case kWhatReset:
703        {
704            ALOGV("kWhatReset");
705
706            mDeferredActions.push_back(
707                    new SimpleAction(&NuPlayer::performDecoderShutdown));
708
709            mDeferredActions.push_back(
710                    new SimpleAction(&NuPlayer::performReset));
711
712            processDeferredActions();
713            break;
714        }
715
716        case kWhatSeek:
717        {
718            int64_t seekTimeUs;
719            CHECK(msg->findInt64("seekTimeUs", &seekTimeUs));
720
721            ALOGV("kWhatSeek seekTimeUs=%lld us", seekTimeUs);
722
723            mDeferredActions.push_back(
724                    new SimpleAction(&NuPlayer::performDecoderFlush));
725
726            mDeferredActions.push_back(new SeekAction(seekTimeUs));
727
728            processDeferredActions();
729            break;
730        }
731
732        case kWhatPause:
733        {
734            CHECK(mRenderer != NULL);
735            mRenderer->pause();
736            break;
737        }
738
739        case kWhatResume:
740        {
741            CHECK(mRenderer != NULL);
742            mRenderer->resume();
743            break;
744        }
745
746        case kWhatSourceNotify:
747        {
748            onSourceNotify(msg);
749            break;
750        }
751
752        default:
753            TRESPASS();
754            break;
755    }
756}
757
758void NuPlayer::finishFlushIfPossible() {
759    if (mFlushingAudio != FLUSHED && mFlushingAudio != SHUT_DOWN) {
760        return;
761    }
762
763    if (mFlushingVideo != FLUSHED && mFlushingVideo != SHUT_DOWN) {
764        return;
765    }
766
767    ALOGV("both audio and video are flushed now.");
768
769    if (mTimeDiscontinuityPending) {
770        mRenderer->signalTimeDiscontinuity();
771        mTimeDiscontinuityPending = false;
772    }
773
774    if (mAudioDecoder != NULL) {
775        mAudioDecoder->signalResume();
776    }
777
778    if (mVideoDecoder != NULL) {
779        mVideoDecoder->signalResume();
780    }
781
782    mFlushingAudio = NONE;
783    mFlushingVideo = NONE;
784
785    processDeferredActions();
786}
787
788void NuPlayer::postScanSources() {
789    if (mScanSourcesPending) {
790        return;
791    }
792
793    sp<AMessage> msg = new AMessage(kWhatScanSources, id());
794    msg->setInt32("generation", mScanSourcesGeneration);
795    msg->post();
796
797    mScanSourcesPending = true;
798}
799
800status_t NuPlayer::instantiateDecoder(bool audio, sp<Decoder> *decoder) {
801    if (*decoder != NULL) {
802        return OK;
803    }
804
805    sp<AMessage> format = mSource->getFormat(audio);
806
807    if (format == NULL) {
808        return -EWOULDBLOCK;
809    }
810
811    if (!audio) {
812        AString mime;
813        CHECK(format->findString("mime", &mime));
814        mVideoIsAVC = !strcasecmp(MEDIA_MIMETYPE_VIDEO_AVC, mime.c_str());
815    }
816
817    sp<AMessage> notify =
818        new AMessage(audio ? kWhatAudioNotify : kWhatVideoNotify,
819                     id());
820
821    *decoder = audio ? new Decoder(notify) :
822                       new Decoder(notify, mNativeWindow);
823    looper()->registerHandler(*decoder);
824
825    (*decoder)->configure(format);
826
827    int64_t durationUs;
828    if (mDriver != NULL && mSource->getDuration(&durationUs) == OK) {
829        sp<NuPlayerDriver> driver = mDriver.promote();
830        if (driver != NULL) {
831            driver->notifyDuration(durationUs);
832        }
833    }
834
835    return OK;
836}
837
838status_t NuPlayer::feedDecoderInputData(bool audio, const sp<AMessage> &msg) {
839    sp<AMessage> reply;
840    CHECK(msg->findMessage("reply", &reply));
841
842    if ((audio && IsFlushingState(mFlushingAudio))
843            || (!audio && IsFlushingState(mFlushingVideo))) {
844        reply->setInt32("err", INFO_DISCONTINUITY);
845        reply->post();
846        return OK;
847    }
848
849    sp<ABuffer> accessUnit;
850
851    bool dropAccessUnit;
852    do {
853        status_t err = mSource->dequeueAccessUnit(audio, &accessUnit);
854
855        if (err == -EWOULDBLOCK) {
856            return err;
857        } else if (err != OK) {
858            if (err == INFO_DISCONTINUITY) {
859                int32_t type;
860                CHECK(accessUnit->meta()->findInt32("discontinuity", &type));
861
862                bool formatChange =
863                    (audio &&
864                     (type & ATSParser::DISCONTINUITY_AUDIO_FORMAT))
865                    || (!audio &&
866                            (type & ATSParser::DISCONTINUITY_VIDEO_FORMAT));
867
868                bool timeChange = (type & ATSParser::DISCONTINUITY_TIME) != 0;
869
870                ALOGI("%s discontinuity (formatChange=%d, time=%d)",
871                     audio ? "audio" : "video", formatChange, timeChange);
872
873                if (audio) {
874                    mSkipRenderingAudioUntilMediaTimeUs = -1;
875                } else {
876                    mSkipRenderingVideoUntilMediaTimeUs = -1;
877                }
878
879                if (timeChange) {
880                    sp<AMessage> extra;
881                    if (accessUnit->meta()->findMessage("extra", &extra)
882                            && extra != NULL) {
883                        int64_t resumeAtMediaTimeUs;
884                        if (extra->findInt64(
885                                    "resume-at-mediatimeUs", &resumeAtMediaTimeUs)) {
886                            ALOGI("suppressing rendering of %s until %lld us",
887                                    audio ? "audio" : "video", resumeAtMediaTimeUs);
888
889                            if (audio) {
890                                mSkipRenderingAudioUntilMediaTimeUs =
891                                    resumeAtMediaTimeUs;
892                            } else {
893                                mSkipRenderingVideoUntilMediaTimeUs =
894                                    resumeAtMediaTimeUs;
895                            }
896                        }
897                    }
898                }
899
900                mTimeDiscontinuityPending =
901                    mTimeDiscontinuityPending || timeChange;
902
903                if (formatChange || timeChange) {
904                    if (mFlushingAudio == NONE && mFlushingVideo == NONE) {
905                        // And we'll resume scanning sources once we're done
906                        // flushing.
907                        mDeferredActions.push_front(
908                                new SimpleAction(
909                                    &NuPlayer::performScanSources));
910                    }
911
912                    flushDecoder(audio, formatChange);
913                } else {
914                    // This stream is unaffected by the discontinuity
915
916                    if (audio) {
917                        mFlushingAudio = FLUSHED;
918                    } else {
919                        mFlushingVideo = FLUSHED;
920                    }
921
922                    finishFlushIfPossible();
923
924                    return -EWOULDBLOCK;
925                }
926            }
927
928            reply->setInt32("err", err);
929            reply->post();
930            return OK;
931        }
932
933        if (!audio) {
934            ++mNumFramesTotal;
935        }
936
937        dropAccessUnit = false;
938        if (!audio
939                && mVideoLateByUs > 100000ll
940                && mVideoIsAVC
941                && !IsAVCReferenceFrame(accessUnit)) {
942            dropAccessUnit = true;
943            ++mNumFramesDropped;
944        }
945    } while (dropAccessUnit);
946
947    // ALOGV("returned a valid buffer of %s data", audio ? "audio" : "video");
948
949#if 0
950    int64_t mediaTimeUs;
951    CHECK(accessUnit->meta()->findInt64("timeUs", &mediaTimeUs));
952    ALOGV("feeding %s input buffer at media time %.2f secs",
953         audio ? "audio" : "video",
954         mediaTimeUs / 1E6);
955#endif
956
957    reply->setBuffer("buffer", accessUnit);
958    reply->post();
959
960    return OK;
961}
962
963void NuPlayer::renderBuffer(bool audio, const sp<AMessage> &msg) {
964    // ALOGV("renderBuffer %s", audio ? "audio" : "video");
965
966    sp<AMessage> reply;
967    CHECK(msg->findMessage("reply", &reply));
968
969    if (IsFlushingState(audio ? mFlushingAudio : mFlushingVideo)) {
970        // We're currently attempting to flush the decoder, in order
971        // to complete this, the decoder wants all its buffers back,
972        // so we don't want any output buffers it sent us (from before
973        // we initiated the flush) to be stuck in the renderer's queue.
974
975        ALOGV("we're still flushing the %s decoder, sending its output buffer"
976             " right back.", audio ? "audio" : "video");
977
978        reply->post();
979        return;
980    }
981
982    sp<ABuffer> buffer;
983    CHECK(msg->findBuffer("buffer", &buffer));
984
985    int64_t &skipUntilMediaTimeUs =
986        audio
987            ? mSkipRenderingAudioUntilMediaTimeUs
988            : mSkipRenderingVideoUntilMediaTimeUs;
989
990    if (skipUntilMediaTimeUs >= 0) {
991        int64_t mediaTimeUs;
992        CHECK(buffer->meta()->findInt64("timeUs", &mediaTimeUs));
993
994        if (mediaTimeUs < skipUntilMediaTimeUs) {
995            ALOGV("dropping %s buffer at time %lld as requested.",
996                 audio ? "audio" : "video",
997                 mediaTimeUs);
998
999            reply->post();
1000            return;
1001        }
1002
1003        skipUntilMediaTimeUs = -1;
1004    }
1005
1006    mRenderer->queueBuffer(audio, buffer, reply);
1007}
1008
1009void NuPlayer::notifyListener(int msg, int ext1, int ext2) {
1010    if (mDriver == NULL) {
1011        return;
1012    }
1013
1014    sp<NuPlayerDriver> driver = mDriver.promote();
1015
1016    if (driver == NULL) {
1017        return;
1018    }
1019
1020    driver->notifyListener(msg, ext1, ext2);
1021}
1022
1023void NuPlayer::flushDecoder(bool audio, bool needShutdown) {
1024    if ((audio && mAudioDecoder == NULL) || (!audio && mVideoDecoder == NULL)) {
1025        ALOGI("flushDecoder %s without decoder present",
1026             audio ? "audio" : "video");
1027    }
1028
1029    // Make sure we don't continue to scan sources until we finish flushing.
1030    ++mScanSourcesGeneration;
1031    mScanSourcesPending = false;
1032
1033    (audio ? mAudioDecoder : mVideoDecoder)->signalFlush();
1034    mRenderer->flush(audio);
1035
1036    FlushStatus newStatus =
1037        needShutdown ? FLUSHING_DECODER_SHUTDOWN : FLUSHING_DECODER;
1038
1039    if (audio) {
1040        CHECK(mFlushingAudio == NONE
1041                || mFlushingAudio == AWAITING_DISCONTINUITY);
1042
1043        mFlushingAudio = newStatus;
1044
1045        if (mFlushingVideo == NONE) {
1046            mFlushingVideo = (mVideoDecoder != NULL)
1047                ? AWAITING_DISCONTINUITY
1048                : FLUSHED;
1049        }
1050    } else {
1051        CHECK(mFlushingVideo == NONE
1052                || mFlushingVideo == AWAITING_DISCONTINUITY);
1053
1054        mFlushingVideo = newStatus;
1055
1056        if (mFlushingAudio == NONE) {
1057            mFlushingAudio = (mAudioDecoder != NULL)
1058                ? AWAITING_DISCONTINUITY
1059                : FLUSHED;
1060        }
1061    }
1062}
1063
1064sp<AMessage> NuPlayer::Source::getFormat(bool audio) {
1065    sp<MetaData> meta = getFormatMeta(audio);
1066
1067    if (meta == NULL) {
1068        return NULL;
1069    }
1070
1071    sp<AMessage> msg = new AMessage;
1072
1073    if(convertMetaDataToMessage(meta, &msg) == OK) {
1074        return msg;
1075    }
1076    return NULL;
1077}
1078
1079status_t NuPlayer::setVideoScalingMode(int32_t mode) {
1080    mVideoScalingMode = mode;
1081    if (mNativeWindow != NULL) {
1082        status_t ret = native_window_set_scaling_mode(
1083                mNativeWindow->getNativeWindow().get(), mVideoScalingMode);
1084        if (ret != OK) {
1085            ALOGE("Failed to set scaling mode (%d): %s",
1086                -ret, strerror(-ret));
1087            return ret;
1088        }
1089    }
1090    return OK;
1091}
1092
1093void NuPlayer::schedulePollDuration() {
1094    sp<AMessage> msg = new AMessage(kWhatPollDuration, id());
1095    msg->setInt32("generation", mPollDurationGeneration);
1096    msg->post();
1097}
1098
1099void NuPlayer::cancelPollDuration() {
1100    ++mPollDurationGeneration;
1101}
1102
1103void NuPlayer::processDeferredActions() {
1104    while (!mDeferredActions.empty()) {
1105        // We won't execute any deferred actions until we're no longer in
1106        // an intermediate state, i.e. one more more decoders are currently
1107        // flushing or shutting down.
1108
1109        if (mRenderer != NULL) {
1110            // There's an edge case where the renderer owns all output
1111            // buffers and is paused, therefore the decoder will not read
1112            // more input data and will never encounter the matching
1113            // discontinuity. To avoid this, we resume the renderer.
1114
1115            if (mFlushingAudio == AWAITING_DISCONTINUITY
1116                    || mFlushingVideo == AWAITING_DISCONTINUITY) {
1117                mRenderer->resume();
1118            }
1119        }
1120
1121        if (mFlushingAudio != NONE || mFlushingVideo != NONE) {
1122            // We're currently flushing, postpone the reset until that's
1123            // completed.
1124
1125            ALOGV("postponing action mFlushingAudio=%d, mFlushingVideo=%d",
1126                  mFlushingAudio, mFlushingVideo);
1127
1128            break;
1129        }
1130
1131        sp<Action> action = *mDeferredActions.begin();
1132        mDeferredActions.erase(mDeferredActions.begin());
1133
1134        action->execute(this);
1135    }
1136}
1137
1138void NuPlayer::performSeek(int64_t seekTimeUs) {
1139    ALOGV("performSeek seekTimeUs=%lld us (%.2f secs)",
1140          seekTimeUs,
1141          seekTimeUs / 1E6);
1142
1143    mSource->seekTo(seekTimeUs);
1144
1145    if (mDriver != NULL) {
1146        sp<NuPlayerDriver> driver = mDriver.promote();
1147        if (driver != NULL) {
1148            driver->notifyPosition(seekTimeUs);
1149            driver->notifySeekComplete();
1150        }
1151    }
1152
1153    // everything's flushed, continue playback.
1154}
1155
1156void NuPlayer::performDecoderFlush() {
1157    ALOGV("performDecoderFlush");
1158
1159    if (mAudioDecoder != NULL && mVideoDecoder == NULL) {
1160        return;
1161    }
1162
1163    mTimeDiscontinuityPending = true;
1164
1165    if (mAudioDecoder != NULL) {
1166        flushDecoder(true /* audio */, false /* needShutdown */);
1167    }
1168
1169    if (mVideoDecoder != NULL) {
1170        flushDecoder(false /* audio */, false /* needShutdown */);
1171    }
1172}
1173
1174void NuPlayer::performDecoderShutdown() {
1175    ALOGV("performDecoderShutdown");
1176
1177    if (mAudioDecoder != NULL && mVideoDecoder == NULL) {
1178        return;
1179    }
1180
1181    mTimeDiscontinuityPending = true;
1182
1183    if (mAudioDecoder != NULL) {
1184        flushDecoder(true /* audio */, true /* needShutdown */);
1185    }
1186
1187    if (mVideoDecoder != NULL) {
1188        flushDecoder(false /* audio */, true /* needShutdown */);
1189    }
1190}
1191
1192void NuPlayer::performReset() {
1193    ALOGV("performReset");
1194
1195    CHECK(mAudioDecoder == NULL);
1196    CHECK(mVideoDecoder == NULL);
1197
1198    cancelPollDuration();
1199
1200    ++mScanSourcesGeneration;
1201    mScanSourcesPending = false;
1202
1203    mRenderer.clear();
1204
1205    if (mSource != NULL) {
1206        mSource->stop();
1207
1208        looper()->unregisterHandler(mSource->id());
1209
1210        mSource.clear();
1211    }
1212
1213    if (mDriver != NULL) {
1214        sp<NuPlayerDriver> driver = mDriver.promote();
1215        if (driver != NULL) {
1216            driver->notifyResetComplete();
1217        }
1218    }
1219
1220    mStarted = false;
1221}
1222
1223void NuPlayer::performScanSources() {
1224    ALOGV("performScanSources");
1225
1226    if (!mStarted) {
1227        return;
1228    }
1229
1230    if (mAudioDecoder == NULL || mVideoDecoder == NULL) {
1231        postScanSources();
1232    }
1233}
1234
1235void NuPlayer::performSetSurface(const sp<NativeWindowWrapper> &wrapper) {
1236    ALOGV("performSetSurface");
1237
1238    mNativeWindow = wrapper;
1239
1240    // XXX - ignore error from setVideoScalingMode for now
1241    setVideoScalingMode(mVideoScalingMode);
1242
1243    if (mDriver != NULL) {
1244        sp<NuPlayerDriver> driver = mDriver.promote();
1245        if (driver != NULL) {
1246            driver->notifySetSurfaceComplete();
1247        }
1248    }
1249}
1250
1251void NuPlayer::onSourceNotify(const sp<AMessage> &msg) {
1252    int32_t what;
1253    CHECK(msg->findInt32("what", &what));
1254
1255    switch (what) {
1256        case Source::kWhatPrepared:
1257        {
1258            int32_t err;
1259            CHECK(msg->findInt32("err", &err));
1260
1261            sp<NuPlayerDriver> driver = mDriver.promote();
1262            if (driver != NULL) {
1263                driver->notifyPrepareCompleted(err);
1264            }
1265            break;
1266        }
1267
1268        case Source::kWhatFlagsChanged:
1269        {
1270            uint32_t flags;
1271            CHECK(msg->findInt32("flags", (int32_t *)&flags));
1272
1273            if ((mSourceFlags & Source::FLAG_DYNAMIC_DURATION)
1274                    && (!(flags & Source::FLAG_DYNAMIC_DURATION))) {
1275                cancelPollDuration();
1276            } else if (!(mSourceFlags & Source::FLAG_DYNAMIC_DURATION)
1277                    && (flags & Source::FLAG_DYNAMIC_DURATION)
1278                    && (mAudioDecoder != NULL || mVideoDecoder != NULL)) {
1279                schedulePollDuration();
1280            }
1281
1282            mSourceFlags = flags;
1283            break;
1284        }
1285
1286        case Source::kWhatVideoSizeChanged:
1287        {
1288            int32_t width, height;
1289            CHECK(msg->findInt32("width", &width));
1290            CHECK(msg->findInt32("height", &height));
1291
1292            notifyListener(MEDIA_SET_VIDEO_SIZE, width, height);
1293            break;
1294        }
1295
1296        default:
1297            TRESPASS();
1298    }
1299}
1300
1301////////////////////////////////////////////////////////////////////////////////
1302
1303void NuPlayer::Source::notifyFlagsChanged(uint32_t flags) {
1304    sp<AMessage> notify = dupNotify();
1305    notify->setInt32("what", kWhatFlagsChanged);
1306    notify->setInt32("flags", flags);
1307    notify->post();
1308}
1309
1310void NuPlayer::Source::notifyVideoSizeChanged(int32_t width, int32_t height) {
1311    sp<AMessage> notify = dupNotify();
1312    notify->setInt32("what", kWhatVideoSizeChanged);
1313    notify->setInt32("width", width);
1314    notify->setInt32("height", height);
1315    notify->post();
1316}
1317
1318void NuPlayer::Source::notifyPrepared(status_t err) {
1319    sp<AMessage> notify = dupNotify();
1320    notify->setInt32("what", kWhatPrepared);
1321    notify->setInt32("err", err);
1322    notify->post();
1323}
1324
1325void NuPlayer::Source::onMessageReceived(const sp<AMessage> &msg) {
1326    TRESPASS();
1327}
1328
1329}  // namespace android
1330