NuPlayer.cpp revision 9b80c2bdb205bc143104f54d0743b6eedd67b14e 
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 "StreamingSource.h"
29
30#include "ATSParser.h"
31
32#include <media/stagefright/foundation/hexdump.h>
33#include <media/stagefright/foundation/ABuffer.h>
34#include <media/stagefright/foundation/ADebug.h>
35#include <media/stagefright/foundation/AMessage.h>
36#include <media/stagefright/ACodec.h>
37#include <media/stagefright/MediaErrors.h>
38#include <media/stagefright/MetaData.h>
39#include <surfaceflinger/Surface.h>
40#include <gui/ISurfaceTexture.h>
41
42namespace android {
43
44////////////////////////////////////////////////////////////////////////////////
45
46NuPlayer::NuPlayer()
47    : mUIDValid(false),
48      mAudioEOS(false),
49      mVideoEOS(false),
50      mScanSourcesPending(false),
51      mScanSourcesGeneration(0),
52      mFlushingAudio(NONE),
53      mFlushingVideo(NONE),
54      mResetInProgress(false),
55      mResetPostponed(false) {
56}
57
58NuPlayer::~NuPlayer() {
59}
60
61void NuPlayer::setUID(uid_t uid) {
62    mUIDValid = true;
63    mUID = uid;
64}
65
66void NuPlayer::setDriver(const wp<NuPlayerDriver> &driver) {
67    mDriver = driver;
68}
69
70void NuPlayer::setDataSource(const sp<IStreamSource> &source) {
71    sp<AMessage> msg = new AMessage(kWhatSetDataSource, id());
72
73    msg->setObject("source", new StreamingSource(source));
74    msg->post();
75}
76
77void NuPlayer::setDataSource(
78        const char *url, const KeyedVector<String8, String8> *headers) {
79    sp<AMessage> msg = new AMessage(kWhatSetDataSource, id());
80
81    msg->setObject("source", new HTTPLiveSource(url, headers, mUIDValid, mUID));
82    msg->post();
83}
84
85void NuPlayer::setVideoSurface(const sp<Surface> &surface) {
86    sp<AMessage> msg = new AMessage(kWhatSetVideoNativeWindow, id());
87    msg->setObject("native-window", new NativeWindowWrapper(surface));
88    msg->post();
89}
90
91void NuPlayer::setVideoSurfaceTexture(const sp<ISurfaceTexture> &surfaceTexture) {
92    sp<AMessage> msg = new AMessage(kWhatSetVideoNativeWindow, id());
93    sp<SurfaceTextureClient> surfaceTextureClient(surfaceTexture != NULL ?
94                new SurfaceTextureClient(surfaceTexture) : NULL);
95    msg->setObject("native-window", new NativeWindowWrapper(surfaceTextureClient));
96    msg->post();
97}
98
99void NuPlayer::setAudioSink(const sp<MediaPlayerBase::AudioSink> &sink) {
100    sp<AMessage> msg = new AMessage(kWhatSetAudioSink, id());
101    msg->setObject("sink", sink);
102    msg->post();
103}
104
105void NuPlayer::start() {
106    (new AMessage(kWhatStart, id()))->post();
107}
108
109void NuPlayer::pause() {
110    (new AMessage(kWhatPause, id()))->post();
111}
112
113void NuPlayer::resume() {
114    (new AMessage(kWhatResume, id()))->post();
115}
116
117void NuPlayer::resetAsync() {
118    (new AMessage(kWhatReset, id()))->post();
119}
120
121void NuPlayer::seekToAsync(int64_t seekTimeUs) {
122    sp<AMessage> msg = new AMessage(kWhatSeek, id());
123    msg->setInt64("seekTimeUs", seekTimeUs);
124    msg->post();
125}
126
127// static
128bool NuPlayer::IsFlushingState(FlushStatus state, bool *needShutdown) {
129    switch (state) {
130        case FLUSHING_DECODER:
131            if (needShutdown != NULL) {
132                *needShutdown = false;
133            }
134            return true;
135
136        case FLUSHING_DECODER_SHUTDOWN:
137            if (needShutdown != NULL) {
138                *needShutdown = true;
139            }
140            return true;
141
142        default:
143            return false;
144    }
145}
146
147void NuPlayer::onMessageReceived(const sp<AMessage> &msg) {
148    switch (msg->what()) {
149        case kWhatSetDataSource:
150        {
151            LOGV("kWhatSetDataSource");
152
153            CHECK(mSource == NULL);
154
155            sp<RefBase> obj;
156            CHECK(msg->findObject("source", &obj));
157
158            mSource = static_cast<Source *>(obj.get());
159            break;
160        }
161
162        case kWhatSetVideoNativeWindow:
163        {
164            LOGV("kWhatSetVideoNativeWindow");
165
166            sp<RefBase> obj;
167            CHECK(msg->findObject("native-window", &obj));
168
169            mNativeWindow = static_cast<NativeWindowWrapper *>(obj.get());
170            break;
171        }
172
173        case kWhatSetAudioSink:
174        {
175            LOGV("kWhatSetAudioSink");
176
177            sp<RefBase> obj;
178            CHECK(msg->findObject("sink", &obj));
179
180            mAudioSink = static_cast<MediaPlayerBase::AudioSink *>(obj.get());
181            break;
182        }
183
184        case kWhatStart:
185        {
186            LOGV("kWhatStart");
187
188            mAudioEOS = false;
189            mVideoEOS = false;
190            mSkipRenderingAudioUntilMediaTimeUs = -1;
191            mSkipRenderingVideoUntilMediaTimeUs = -1;
192
193            mSource->start();
194
195            mRenderer = new Renderer(
196                    mAudioSink,
197                    new AMessage(kWhatRendererNotify, id()));
198
199            looper()->registerHandler(mRenderer);
200
201            postScanSources();
202            break;
203        }
204
205        case kWhatScanSources:
206        {
207            int32_t generation;
208            CHECK(msg->findInt32("generation", &generation));
209            if (generation != mScanSourcesGeneration) {
210                // Drop obsolete msg.
211                break;
212            }
213
214            mScanSourcesPending = false;
215
216            LOGV("scanning sources haveAudio=%d, haveVideo=%d",
217                 mAudioDecoder != NULL, mVideoDecoder != NULL);
218
219            instantiateDecoder(false, &mVideoDecoder);
220
221            if (mAudioSink != NULL) {
222                instantiateDecoder(true, &mAudioDecoder);
223            }
224
225            if (!mSource->feedMoreTSData()) {
226                if (mAudioDecoder == NULL && mVideoDecoder == NULL) {
227                    // We're not currently decoding anything (no audio or
228                    // video tracks found) and we just ran out of input data.
229                    notifyListener(MEDIA_PLAYBACK_COMPLETE, 0, 0);
230                }
231                break;
232            }
233
234            if (mAudioDecoder == NULL || mVideoDecoder == NULL) {
235                msg->post(100000ll);
236                mScanSourcesPending = true;
237            }
238            break;
239        }
240
241        case kWhatVideoNotify:
242        case kWhatAudioNotify:
243        {
244            bool audio = msg->what() == kWhatAudioNotify;
245
246            sp<AMessage> codecRequest;
247            CHECK(msg->findMessage("codec-request", &codecRequest));
248
249            int32_t what;
250            CHECK(codecRequest->findInt32("what", &what));
251
252            if (what == ACodec::kWhatFillThisBuffer) {
253                status_t err = feedDecoderInputData(
254                        audio, codecRequest);
255
256                if (err == -EWOULDBLOCK) {
257                    if (mSource->feedMoreTSData()) {
258                        msg->post();
259                    }
260                }
261            } else if (what == ACodec::kWhatEOS) {
262                mRenderer->queueEOS(audio, ERROR_END_OF_STREAM);
263            } else if (what == ACodec::kWhatFlushCompleted) {
264                bool needShutdown;
265
266                if (audio) {
267                    CHECK(IsFlushingState(mFlushingAudio, &needShutdown));
268                    mFlushingAudio = FLUSHED;
269                } else {
270                    CHECK(IsFlushingState(mFlushingVideo, &needShutdown));
271                    mFlushingVideo = FLUSHED;
272                }
273
274                LOGV("decoder %s flush completed", audio ? "audio" : "video");
275
276                if (needShutdown) {
277                    LOGV("initiating %s decoder shutdown",
278                         audio ? "audio" : "video");
279
280                    (audio ? mAudioDecoder : mVideoDecoder)->initiateShutdown();
281
282                    if (audio) {
283                        mFlushingAudio = SHUTTING_DOWN_DECODER;
284                    } else {
285                        mFlushingVideo = SHUTTING_DOWN_DECODER;
286                    }
287                }
288
289                finishFlushIfPossible();
290            } else if (what == ACodec::kWhatOutputFormatChanged) {
291                if (audio) {
292                    int32_t numChannels;
293                    CHECK(codecRequest->findInt32("channel-count", &numChannels));
294
295                    int32_t sampleRate;
296                    CHECK(codecRequest->findInt32("sample-rate", &sampleRate));
297
298                    LOGV("Audio output format changed to %d Hz, %d channels",
299                         sampleRate, numChannels);
300
301                    mAudioSink->close();
302                    CHECK_EQ(mAudioSink->open(sampleRate, numChannels), (status_t)OK);
303                    mAudioSink->start();
304
305                    mRenderer->signalAudioSinkChanged();
306                } else {
307                    // video
308
309                    int32_t width, height;
310                    CHECK(codecRequest->findInt32("width", &width));
311                    CHECK(codecRequest->findInt32("height", &height));
312
313                    int32_t cropLeft, cropTop, cropRight, cropBottom;
314                    CHECK(codecRequest->findRect(
315                                "crop",
316                                &cropLeft, &cropTop, &cropRight, &cropBottom));
317
318                    LOGV("Video output format changed to %d x %d "
319                         "(crop: %d, %d, %d, %d)",
320                         width, height,
321                         cropLeft, cropTop, cropRight, cropBottom);
322
323                    notifyListener(
324                            MEDIA_SET_VIDEO_SIZE,
325                            cropRight - cropLeft + 1,
326                            cropBottom - cropTop + 1);
327                }
328            } else if (what == ACodec::kWhatShutdownCompleted) {
329                LOGV("%s shutdown completed", audio ? "audio" : "video");
330                if (audio) {
331                    mAudioDecoder.clear();
332
333                    CHECK_EQ((int)mFlushingAudio, (int)SHUTTING_DOWN_DECODER);
334                    mFlushingAudio = SHUT_DOWN;
335                } else {
336                    mVideoDecoder.clear();
337
338                    CHECK_EQ((int)mFlushingVideo, (int)SHUTTING_DOWN_DECODER);
339                    mFlushingVideo = SHUT_DOWN;
340                }
341
342                finishFlushIfPossible();
343            } else {
344                CHECK_EQ((int)what, (int)ACodec::kWhatDrainThisBuffer);
345
346                renderBuffer(audio, codecRequest);
347            }
348
349            break;
350        }
351
352        case kWhatRendererNotify:
353        {
354            int32_t what;
355            CHECK(msg->findInt32("what", &what));
356
357            if (what == Renderer::kWhatEOS) {
358                int32_t audio;
359                CHECK(msg->findInt32("audio", &audio));
360
361                if (audio) {
362                    mAudioEOS = true;
363                } else {
364                    mVideoEOS = true;
365                }
366
367                LOGV("reached %s EOS", audio ? "audio" : "video");
368
369                if ((mAudioEOS || mAudioDecoder == NULL)
370                        && (mVideoEOS || mVideoDecoder == NULL)) {
371                    notifyListener(MEDIA_PLAYBACK_COMPLETE, 0, 0);
372                }
373            } else if (what == Renderer::kWhatPosition) {
374                int64_t positionUs;
375                CHECK(msg->findInt64("positionUs", &positionUs));
376
377                if (mDriver != NULL) {
378                    sp<NuPlayerDriver> driver = mDriver.promote();
379                    if (driver != NULL) {
380                        driver->notifyPosition(positionUs);
381                    }
382                }
383            } else {
384                CHECK_EQ(what, (int32_t)Renderer::kWhatFlushComplete);
385
386                int32_t audio;
387                CHECK(msg->findInt32("audio", &audio));
388
389                LOGV("renderer %s flush completed.", audio ? "audio" : "video");
390            }
391            break;
392        }
393
394        case kWhatMoreDataQueued:
395        {
396            break;
397        }
398
399        case kWhatReset:
400        {
401            LOGV("kWhatReset");
402
403            if (mFlushingAudio != NONE || mFlushingVideo != NONE) {
404                // We're currently flushing, postpone the reset until that's
405                // completed.
406
407                LOGV("postponing reset");
408
409                mResetPostponed = true;
410                break;
411            }
412
413            if (mAudioDecoder == NULL && mVideoDecoder == NULL) {
414                finishReset();
415                break;
416            }
417
418            if (mAudioDecoder != NULL) {
419                flushDecoder(true /* audio */, true /* needShutdown */);
420            }
421
422            if (mVideoDecoder != NULL) {
423                flushDecoder(false /* audio */, true /* needShutdown */);
424            }
425
426            mResetInProgress = true;
427            break;
428        }
429
430        case kWhatSeek:
431        {
432            int64_t seekTimeUs;
433            CHECK(msg->findInt64("seekTimeUs", &seekTimeUs));
434
435            LOGV("kWhatSeek seekTimeUs=%lld us (%.2f secs)",
436                 seekTimeUs, seekTimeUs / 1E6);
437
438            mSource->seekTo(seekTimeUs);
439
440            if (mDriver != NULL) {
441                sp<NuPlayerDriver> driver = mDriver.promote();
442                if (driver != NULL) {
443                    driver->notifySeekComplete();
444                }
445            }
446
447            break;
448        }
449
450        case kWhatPause:
451        {
452            CHECK(mRenderer != NULL);
453            mRenderer->pause();
454            break;
455        }
456
457        case kWhatResume:
458        {
459            CHECK(mRenderer != NULL);
460            mRenderer->resume();
461            break;
462        }
463
464        default:
465            TRESPASS();
466            break;
467    }
468}
469
470void NuPlayer::finishFlushIfPossible() {
471    if (mFlushingAudio != FLUSHED && mFlushingAudio != SHUT_DOWN) {
472        return;
473    }
474
475    if (mFlushingVideo != FLUSHED && mFlushingVideo != SHUT_DOWN) {
476        return;
477    }
478
479    LOGV("both audio and video are flushed now.");
480
481    mRenderer->signalTimeDiscontinuity();
482
483    if (mAudioDecoder != NULL) {
484        mAudioDecoder->signalResume();
485    }
486
487    if (mVideoDecoder != NULL) {
488        mVideoDecoder->signalResume();
489    }
490
491    mFlushingAudio = NONE;
492    mFlushingVideo = NONE;
493
494    if (mResetInProgress) {
495        LOGV("reset completed");
496
497        mResetInProgress = false;
498        finishReset();
499    } else if (mResetPostponed) {
500        (new AMessage(kWhatReset, id()))->post();
501        mResetPostponed = false;
502    } else if (mAudioDecoder == NULL || mVideoDecoder == NULL) {
503        postScanSources();
504    }
505}
506
507void NuPlayer::finishReset() {
508    CHECK(mAudioDecoder == NULL);
509    CHECK(mVideoDecoder == NULL);
510
511    mRenderer.clear();
512    mSource.clear();
513
514    if (mDriver != NULL) {
515        sp<NuPlayerDriver> driver = mDriver.promote();
516        if (driver != NULL) {
517            driver->notifyResetComplete();
518        }
519    }
520}
521
522void NuPlayer::postScanSources() {
523    if (mScanSourcesPending) {
524        return;
525    }
526
527    sp<AMessage> msg = new AMessage(kWhatScanSources, id());
528    msg->setInt32("generation", mScanSourcesGeneration);
529    msg->post();
530
531    mScanSourcesPending = true;
532}
533
534status_t NuPlayer::instantiateDecoder(bool audio, sp<Decoder> *decoder) {
535    if (*decoder != NULL) {
536        return OK;
537    }
538
539    sp<MetaData> meta = mSource->getFormat(audio);
540
541    if (meta == NULL) {
542        return -EWOULDBLOCK;
543    }
544
545    sp<AMessage> notify =
546        new AMessage(audio ? kWhatAudioNotify : kWhatVideoNotify,
547                     id());
548
549    *decoder = audio ? new Decoder(notify) :
550                       new Decoder(notify, mNativeWindow);
551    looper()->registerHandler(*decoder);
552
553    (*decoder)->configure(meta);
554
555    int64_t durationUs;
556    if (mDriver != NULL && mSource->getDuration(&durationUs) == OK) {
557        sp<NuPlayerDriver> driver = mDriver.promote();
558        if (driver != NULL) {
559            driver->notifyDuration(durationUs);
560        }
561    }
562
563    return OK;
564}
565
566status_t NuPlayer::feedDecoderInputData(bool audio, const sp<AMessage> &msg) {
567    sp<AMessage> reply;
568    CHECK(msg->findMessage("reply", &reply));
569
570    if ((audio && IsFlushingState(mFlushingAudio))
571            || (!audio && IsFlushingState(mFlushingVideo))) {
572        reply->setInt32("err", INFO_DISCONTINUITY);
573        reply->post();
574        return OK;
575    }
576
577    sp<ABuffer> accessUnit;
578    status_t err = mSource->dequeueAccessUnit(audio, &accessUnit);
579
580    if (err == -EWOULDBLOCK) {
581        return err;
582    } else if (err != OK) {
583        if (err == INFO_DISCONTINUITY) {
584            int32_t type;
585            CHECK(accessUnit->meta()->findInt32("discontinuity", &type));
586
587            bool formatChange =
588                type == ATSParser::DISCONTINUITY_FORMATCHANGE;
589
590            LOGV("%s discontinuity (formatChange=%d)",
591                 audio ? "audio" : "video", formatChange);
592
593            if (audio) {
594                mSkipRenderingAudioUntilMediaTimeUs = -1;
595            } else {
596                mSkipRenderingVideoUntilMediaTimeUs = -1;
597            }
598
599            sp<AMessage> extra;
600            if (accessUnit->meta()->findMessage("extra", &extra)
601                    && extra != NULL) {
602                int64_t resumeAtMediaTimeUs;
603                if (extra->findInt64(
604                            "resume-at-mediatimeUs", &resumeAtMediaTimeUs)) {
605                    LOGI("suppressing rendering of %s until %lld us",
606                            audio ? "audio" : "video", resumeAtMediaTimeUs);
607
608                    if (audio) {
609                        mSkipRenderingAudioUntilMediaTimeUs =
610                            resumeAtMediaTimeUs;
611                    } else {
612                        mSkipRenderingVideoUntilMediaTimeUs =
613                            resumeAtMediaTimeUs;
614                    }
615                }
616            }
617
618            flushDecoder(audio, formatChange);
619        }
620
621        reply->setInt32("err", err);
622        reply->post();
623        return OK;
624    }
625
626    // LOGV("returned a valid buffer of %s data", audio ? "audio" : "video");
627
628#if 0
629    int64_t mediaTimeUs;
630    CHECK(accessUnit->meta()->findInt64("timeUs", &mediaTimeUs));
631    LOGV("feeding %s input buffer at media time %.2f secs",
632         audio ? "audio" : "video",
633         mediaTimeUs / 1E6);
634#endif
635
636    reply->setObject("buffer", accessUnit);
637    reply->post();
638
639    return OK;
640}
641
642void NuPlayer::renderBuffer(bool audio, const sp<AMessage> &msg) {
643    // LOGV("renderBuffer %s", audio ? "audio" : "video");
644
645    sp<AMessage> reply;
646    CHECK(msg->findMessage("reply", &reply));
647
648    sp<RefBase> obj;
649    CHECK(msg->findObject("buffer", &obj));
650
651    sp<ABuffer> buffer = static_cast<ABuffer *>(obj.get());
652
653    int64_t &skipUntilMediaTimeUs =
654        audio
655            ? mSkipRenderingAudioUntilMediaTimeUs
656            : mSkipRenderingVideoUntilMediaTimeUs;
657
658    if (skipUntilMediaTimeUs >= 0) {
659        int64_t mediaTimeUs;
660        CHECK(buffer->meta()->findInt64("timeUs", &mediaTimeUs));
661
662        if (mediaTimeUs < skipUntilMediaTimeUs) {
663            LOGV("dropping %s buffer at time %lld as requested.",
664                 audio ? "audio" : "video",
665                 mediaTimeUs);
666
667            reply->post();
668            return;
669        }
670
671        skipUntilMediaTimeUs = -1;
672    }
673
674    mRenderer->queueBuffer(audio, buffer, reply);
675}
676
677void NuPlayer::notifyListener(int msg, int ext1, int ext2) {
678    if (mDriver == NULL) {
679        return;
680    }
681
682    sp<NuPlayerDriver> driver = mDriver.promote();
683
684    if (driver == NULL) {
685        return;
686    }
687
688    driver->sendEvent(msg, ext1, ext2);
689}
690
691void NuPlayer::flushDecoder(bool audio, bool needShutdown) {
692    // Make sure we don't continue to scan sources until we finish flushing.
693    ++mScanSourcesGeneration;
694    mScanSourcesPending = false;
695
696    (audio ? mAudioDecoder : mVideoDecoder)->signalFlush();
697    mRenderer->flush(audio);
698
699    FlushStatus newStatus =
700        needShutdown ? FLUSHING_DECODER_SHUTDOWN : FLUSHING_DECODER;
701
702    if (audio) {
703        CHECK(mFlushingAudio == NONE
704                || mFlushingAudio == AWAITING_DISCONTINUITY);
705
706        mFlushingAudio = newStatus;
707
708        if (mFlushingVideo == NONE) {
709            mFlushingVideo = (mVideoDecoder != NULL)
710                ? AWAITING_DISCONTINUITY
711                : FLUSHED;
712        }
713    } else {
714        CHECK(mFlushingVideo == NONE
715                || mFlushingVideo == AWAITING_DISCONTINUITY);
716
717        mFlushingVideo = newStatus;
718
719        if (mFlushingAudio == NONE) {
720            mFlushingAudio = (mAudioDecoder != NULL)
721                ? AWAITING_DISCONTINUITY
722                : FLUSHED;
723        }
724    }
725}
726
727}  // namespace android
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