NuPlayer.cpp revision cb67cd1b51ff9ab221e3124cf7e546515fef3c87 
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 x %d @ (%d, %d))",
320                         width, height,
321                         (cropRight - cropLeft + 1),
322                         (cropBottom - cropTop + 1),
323                         cropLeft, cropTop);
324
325                    notifyListener(
326                            MEDIA_SET_VIDEO_SIZE,
327                            cropRight - cropLeft + 1,
328                            cropBottom - cropTop + 1);
329                }
330            } else if (what == ACodec::kWhatShutdownCompleted) {
331                LOGV("%s shutdown completed", audio ? "audio" : "video");
332                if (audio) {
333                    mAudioDecoder.clear();
334
335                    CHECK_EQ((int)mFlushingAudio, (int)SHUTTING_DOWN_DECODER);
336                    mFlushingAudio = SHUT_DOWN;
337                } else {
338                    mVideoDecoder.clear();
339
340                    CHECK_EQ((int)mFlushingVideo, (int)SHUTTING_DOWN_DECODER);
341                    mFlushingVideo = SHUT_DOWN;
342                }
343
344                finishFlushIfPossible();
345            } else if (what == ACodec::kWhatError) {
346                LOGE("Received error from %s decoder, aborting playback.",
347                     audio ? "audio" : "video");
348
349                mRenderer->queueEOS(audio, UNKNOWN_ERROR);
350            } else {
351                CHECK_EQ((int)what, (int)ACodec::kWhatDrainThisBuffer);
352
353                renderBuffer(audio, codecRequest);
354            }
355
356            break;
357        }
358
359        case kWhatRendererNotify:
360        {
361            int32_t what;
362            CHECK(msg->findInt32("what", &what));
363
364            if (what == Renderer::kWhatEOS) {
365                int32_t audio;
366                CHECK(msg->findInt32("audio", &audio));
367
368                int32_t finalResult;
369                CHECK(msg->findInt32("finalResult", &finalResult));
370
371                if (audio) {
372                    mAudioEOS = true;
373                } else {
374                    mVideoEOS = true;
375                }
376
377                if (finalResult == ERROR_END_OF_STREAM) {
378                    LOGV("reached %s EOS", audio ? "audio" : "video");
379                } else {
380                    LOGE("%s track encountered an error (0x%08x)",
381                         audio ? "audio" : "video", finalResult);
382
383                    notifyListener(
384                            MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, finalResult);
385                }
386
387                if ((mAudioEOS || mAudioDecoder == NULL)
388                        && (mVideoEOS || mVideoDecoder == NULL)) {
389                    notifyListener(MEDIA_PLAYBACK_COMPLETE, 0, 0);
390                }
391            } else if (what == Renderer::kWhatPosition) {
392                int64_t positionUs;
393                CHECK(msg->findInt64("positionUs", &positionUs));
394
395                if (mDriver != NULL) {
396                    sp<NuPlayerDriver> driver = mDriver.promote();
397                    if (driver != NULL) {
398                        driver->notifyPosition(positionUs);
399                    }
400                }
401            } else {
402                CHECK_EQ(what, (int32_t)Renderer::kWhatFlushComplete);
403
404                int32_t audio;
405                CHECK(msg->findInt32("audio", &audio));
406
407                LOGV("renderer %s flush completed.", audio ? "audio" : "video");
408            }
409            break;
410        }
411
412        case kWhatMoreDataQueued:
413        {
414            break;
415        }
416
417        case kWhatReset:
418        {
419            LOGV("kWhatReset");
420
421            if (mFlushingAudio != NONE || mFlushingVideo != NONE) {
422                // We're currently flushing, postpone the reset until that's
423                // completed.
424
425                LOGV("postponing reset");
426
427                mResetPostponed = true;
428                break;
429            }
430
431            if (mAudioDecoder == NULL && mVideoDecoder == NULL) {
432                finishReset();
433                break;
434            }
435
436            if (mAudioDecoder != NULL) {
437                flushDecoder(true /* audio */, true /* needShutdown */);
438            }
439
440            if (mVideoDecoder != NULL) {
441                flushDecoder(false /* audio */, true /* needShutdown */);
442            }
443
444            mResetInProgress = true;
445            break;
446        }
447
448        case kWhatSeek:
449        {
450            int64_t seekTimeUs;
451            CHECK(msg->findInt64("seekTimeUs", &seekTimeUs));
452
453            LOGV("kWhatSeek seekTimeUs=%lld us (%.2f secs)",
454                 seekTimeUs, seekTimeUs / 1E6);
455
456            mSource->seekTo(seekTimeUs);
457
458            if (mDriver != NULL) {
459                sp<NuPlayerDriver> driver = mDriver.promote();
460                if (driver != NULL) {
461                    driver->notifySeekComplete();
462                }
463            }
464
465            break;
466        }
467
468        case kWhatPause:
469        {
470            CHECK(mRenderer != NULL);
471            mRenderer->pause();
472            break;
473        }
474
475        case kWhatResume:
476        {
477            CHECK(mRenderer != NULL);
478            mRenderer->resume();
479            break;
480        }
481
482        default:
483            TRESPASS();
484            break;
485    }
486}
487
488void NuPlayer::finishFlushIfPossible() {
489    if (mFlushingAudio != FLUSHED && mFlushingAudio != SHUT_DOWN) {
490        return;
491    }
492
493    if (mFlushingVideo != FLUSHED && mFlushingVideo != SHUT_DOWN) {
494        return;
495    }
496
497    LOGV("both audio and video are flushed now.");
498
499    mRenderer->signalTimeDiscontinuity();
500
501    if (mAudioDecoder != NULL) {
502        mAudioDecoder->signalResume();
503    }
504
505    if (mVideoDecoder != NULL) {
506        mVideoDecoder->signalResume();
507    }
508
509    mFlushingAudio = NONE;
510    mFlushingVideo = NONE;
511
512    if (mResetInProgress) {
513        LOGV("reset completed");
514
515        mResetInProgress = false;
516        finishReset();
517    } else if (mResetPostponed) {
518        (new AMessage(kWhatReset, id()))->post();
519        mResetPostponed = false;
520    } else if (mAudioDecoder == NULL || mVideoDecoder == NULL) {
521        postScanSources();
522    }
523}
524
525void NuPlayer::finishReset() {
526    CHECK(mAudioDecoder == NULL);
527    CHECK(mVideoDecoder == NULL);
528
529    mRenderer.clear();
530    mSource.clear();
531
532    if (mDriver != NULL) {
533        sp<NuPlayerDriver> driver = mDriver.promote();
534        if (driver != NULL) {
535            driver->notifyResetComplete();
536        }
537    }
538}
539
540void NuPlayer::postScanSources() {
541    if (mScanSourcesPending) {
542        return;
543    }
544
545    sp<AMessage> msg = new AMessage(kWhatScanSources, id());
546    msg->setInt32("generation", mScanSourcesGeneration);
547    msg->post();
548
549    mScanSourcesPending = true;
550}
551
552status_t NuPlayer::instantiateDecoder(bool audio, sp<Decoder> *decoder) {
553    if (*decoder != NULL) {
554        return OK;
555    }
556
557    sp<MetaData> meta = mSource->getFormat(audio);
558
559    if (meta == NULL) {
560        return -EWOULDBLOCK;
561    }
562
563    sp<AMessage> notify =
564        new AMessage(audio ? kWhatAudioNotify : kWhatVideoNotify,
565                     id());
566
567    *decoder = audio ? new Decoder(notify) :
568                       new Decoder(notify, mNativeWindow);
569    looper()->registerHandler(*decoder);
570
571    (*decoder)->configure(meta);
572
573    int64_t durationUs;
574    if (mDriver != NULL && mSource->getDuration(&durationUs) == OK) {
575        sp<NuPlayerDriver> driver = mDriver.promote();
576        if (driver != NULL) {
577            driver->notifyDuration(durationUs);
578        }
579    }
580
581    return OK;
582}
583
584status_t NuPlayer::feedDecoderInputData(bool audio, const sp<AMessage> &msg) {
585    sp<AMessage> reply;
586    CHECK(msg->findMessage("reply", &reply));
587
588    if ((audio && IsFlushingState(mFlushingAudio))
589            || (!audio && IsFlushingState(mFlushingVideo))) {
590        reply->setInt32("err", INFO_DISCONTINUITY);
591        reply->post();
592        return OK;
593    }
594
595    sp<ABuffer> accessUnit;
596    status_t err = mSource->dequeueAccessUnit(audio, &accessUnit);
597
598    if (err == -EWOULDBLOCK) {
599        return err;
600    } else if (err != OK) {
601        if (err == INFO_DISCONTINUITY) {
602            int32_t type;
603            CHECK(accessUnit->meta()->findInt32("discontinuity", &type));
604
605            bool formatChange =
606                type == ATSParser::DISCONTINUITY_FORMATCHANGE;
607
608            LOGV("%s discontinuity (formatChange=%d)",
609                 audio ? "audio" : "video", formatChange);
610
611            if (audio) {
612                mSkipRenderingAudioUntilMediaTimeUs = -1;
613            } else {
614                mSkipRenderingVideoUntilMediaTimeUs = -1;
615            }
616
617            sp<AMessage> extra;
618            if (accessUnit->meta()->findMessage("extra", &extra)
619                    && extra != NULL) {
620                int64_t resumeAtMediaTimeUs;
621                if (extra->findInt64(
622                            "resume-at-mediatimeUs", &resumeAtMediaTimeUs)) {
623                    LOGI("suppressing rendering of %s until %lld us",
624                            audio ? "audio" : "video", resumeAtMediaTimeUs);
625
626                    if (audio) {
627                        mSkipRenderingAudioUntilMediaTimeUs =
628                            resumeAtMediaTimeUs;
629                    } else {
630                        mSkipRenderingVideoUntilMediaTimeUs =
631                            resumeAtMediaTimeUs;
632                    }
633                }
634            }
635
636            flushDecoder(audio, formatChange);
637        }
638
639        reply->setInt32("err", err);
640        reply->post();
641        return OK;
642    }
643
644    // LOGV("returned a valid buffer of %s data", audio ? "audio" : "video");
645
646#if 0
647    int64_t mediaTimeUs;
648    CHECK(accessUnit->meta()->findInt64("timeUs", &mediaTimeUs));
649    LOGV("feeding %s input buffer at media time %.2f secs",
650         audio ? "audio" : "video",
651         mediaTimeUs / 1E6);
652#endif
653
654    reply->setObject("buffer", accessUnit);
655    reply->post();
656
657    return OK;
658}
659
660void NuPlayer::renderBuffer(bool audio, const sp<AMessage> &msg) {
661    // LOGV("renderBuffer %s", audio ? "audio" : "video");
662
663    sp<AMessage> reply;
664    CHECK(msg->findMessage("reply", &reply));
665
666    sp<RefBase> obj;
667    CHECK(msg->findObject("buffer", &obj));
668
669    sp<ABuffer> buffer = static_cast<ABuffer *>(obj.get());
670
671    int64_t &skipUntilMediaTimeUs =
672        audio
673            ? mSkipRenderingAudioUntilMediaTimeUs
674            : mSkipRenderingVideoUntilMediaTimeUs;
675
676    if (skipUntilMediaTimeUs >= 0) {
677        int64_t mediaTimeUs;
678        CHECK(buffer->meta()->findInt64("timeUs", &mediaTimeUs));
679
680        if (mediaTimeUs < skipUntilMediaTimeUs) {
681            LOGV("dropping %s buffer at time %lld as requested.",
682                 audio ? "audio" : "video",
683                 mediaTimeUs);
684
685            reply->post();
686            return;
687        }
688
689        skipUntilMediaTimeUs = -1;
690    }
691
692    mRenderer->queueBuffer(audio, buffer, reply);
693}
694
695void NuPlayer::notifyListener(int msg, int ext1, int ext2) {
696    if (mDriver == NULL) {
697        return;
698    }
699
700    sp<NuPlayerDriver> driver = mDriver.promote();
701
702    if (driver == NULL) {
703        return;
704    }
705
706    driver->sendEvent(msg, ext1, ext2);
707}
708
709void NuPlayer::flushDecoder(bool audio, bool needShutdown) {
710    // Make sure we don't continue to scan sources until we finish flushing.
711    ++mScanSourcesGeneration;
712    mScanSourcesPending = false;
713
714    (audio ? mAudioDecoder : mVideoDecoder)->signalFlush();
715    mRenderer->flush(audio);
716
717    FlushStatus newStatus =
718        needShutdown ? FLUSHING_DECODER_SHUTDOWN : FLUSHING_DECODER;
719
720    if (audio) {
721        CHECK(mFlushingAudio == NONE
722                || mFlushingAudio == AWAITING_DISCONTINUITY);
723
724        mFlushingAudio = newStatus;
725
726        if (mFlushingVideo == NONE) {
727            mFlushingVideo = (mVideoDecoder != NULL)
728                ? AWAITING_DISCONTINUITY
729                : FLUSHED;
730        }
731    } else {
732        CHECK(mFlushingVideo == NONE
733                || mFlushingVideo == AWAITING_DISCONTINUITY);
734
735        mFlushingVideo = newStatus;
736
737        if (mFlushingAudio == NONE) {
738            mFlushingAudio = (mAudioDecoder != NULL)
739                ? AWAITING_DISCONTINUITY
740                : FLUSHED;
741        }
742    }
743}
744
745}  // namespace android
746