NuPlayer.cpp revision fbe9d81ff5fbdc5aecdcdd13e4a5d7f019824f96 
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/ISurfaceTexture.h>
45
46#include "avc_utils.h"
47
48#include "ESDS.h"
49#include <media/stagefright/Utils.h>
50
51namespace android {
52
53////////////////////////////////////////////////////////////////////////////////
54
55NuPlayer::NuPlayer()
56    : mUIDValid(false),
57      mVideoIsAVC(false),
58      mAudioEOS(false),
59      mVideoEOS(false),
60      mScanSourcesPending(false),
61      mScanSourcesGeneration(0),
62      mTimeDiscontinuityPending(false),
63      mFlushingAudio(NONE),
64      mFlushingVideo(NONE),
65      mResetInProgress(false),
66      mResetPostponed(false),
67      mSkipRenderingAudioUntilMediaTimeUs(-1ll),
68      mSkipRenderingVideoUntilMediaTimeUs(-1ll),
69      mVideoLateByUs(0ll),
70      mNumFramesTotal(0ll),
71      mNumFramesDropped(0ll) {
72}
73
74NuPlayer::~NuPlayer() {
75}
76
77void NuPlayer::setUID(uid_t uid) {
78    mUIDValid = true;
79    mUID = uid;
80}
81
82void NuPlayer::setDriver(const wp<NuPlayerDriver> &driver) {
83    mDriver = driver;
84}
85
86void NuPlayer::setDataSource(const sp<IStreamSource> &source) {
87    sp<AMessage> msg = new AMessage(kWhatSetDataSource, id());
88
89    char prop[PROPERTY_VALUE_MAX];
90    if (property_get("media.stagefright.use-mp4source", prop, NULL)
91            && (!strcmp(prop, "1") || !strcasecmp(prop, "true"))) {
92        msg->setObject("source", new MP4Source(source));
93    } else {
94        msg->setObject("source", new StreamingSource(source));
95    }
96
97    msg->post();
98}
99
100static bool IsHTTPLiveURL(const char *url) {
101    if (!strncasecmp("http://", url, 7)
102            || !strncasecmp("https://", url, 8)) {
103        size_t len = strlen(url);
104        if (len >= 5 && !strcasecmp(".m3u8", &url[len - 5])) {
105            return true;
106        }
107
108        if (strstr(url,"m3u8")) {
109            return true;
110        }
111    }
112
113    return false;
114}
115
116void NuPlayer::setDataSource(
117        const char *url, const KeyedVector<String8, String8> *headers) {
118    sp<AMessage> msg = new AMessage(kWhatSetDataSource, id());
119
120    sp<Source> source;
121    if (IsHTTPLiveURL(url)) {
122        source = new HTTPLiveSource(url, headers, mUIDValid, mUID);
123    } else if (!strncasecmp(url, "rtsp://", 7)) {
124        source = new RTSPSource(url, headers, mUIDValid, mUID);
125    } else {
126        source = new GenericSource(url, headers, mUIDValid, mUID);
127    }
128
129    msg->setObject("source", source);
130    msg->post();
131}
132
133void NuPlayer::setDataSource(int fd, int64_t offset, int64_t length) {
134    sp<AMessage> msg = new AMessage(kWhatSetDataSource, id());
135
136    sp<Source> source = new GenericSource(fd, offset, length);
137    msg->setObject("source", source);
138    msg->post();
139}
140
141void NuPlayer::setVideoSurfaceTexture(const sp<ISurfaceTexture> &surfaceTexture) {
142    sp<AMessage> msg = new AMessage(kWhatSetVideoNativeWindow, id());
143    sp<SurfaceTextureClient> surfaceTextureClient(surfaceTexture != NULL ?
144                new SurfaceTextureClient(surfaceTexture) : NULL);
145    msg->setObject("native-window", new NativeWindowWrapper(surfaceTextureClient));
146    msg->post();
147}
148
149void NuPlayer::setAudioSink(const sp<MediaPlayerBase::AudioSink> &sink) {
150    sp<AMessage> msg = new AMessage(kWhatSetAudioSink, id());
151    msg->setObject("sink", sink);
152    msg->post();
153}
154
155void NuPlayer::start() {
156    (new AMessage(kWhatStart, id()))->post();
157}
158
159void NuPlayer::pause() {
160    (new AMessage(kWhatPause, id()))->post();
161}
162
163void NuPlayer::resume() {
164    (new AMessage(kWhatResume, id()))->post();
165}
166
167void NuPlayer::resetAsync() {
168    (new AMessage(kWhatReset, id()))->post();
169}
170
171void NuPlayer::seekToAsync(int64_t seekTimeUs) {
172    sp<AMessage> msg = new AMessage(kWhatSeek, id());
173    msg->setInt64("seekTimeUs", seekTimeUs);
174    msg->post();
175}
176
177// static
178bool NuPlayer::IsFlushingState(FlushStatus state, bool *needShutdown) {
179    switch (state) {
180        case FLUSHING_DECODER:
181            if (needShutdown != NULL) {
182                *needShutdown = false;
183            }
184            return true;
185
186        case FLUSHING_DECODER_SHUTDOWN:
187            if (needShutdown != NULL) {
188                *needShutdown = true;
189            }
190            return true;
191
192        default:
193            return false;
194    }
195}
196
197void NuPlayer::onMessageReceived(const sp<AMessage> &msg) {
198    switch (msg->what()) {
199        case kWhatSetDataSource:
200        {
201            ALOGV("kWhatSetDataSource");
202
203            CHECK(mSource == NULL);
204
205            sp<RefBase> obj;
206            CHECK(msg->findObject("source", &obj));
207
208            mSource = static_cast<Source *>(obj.get());
209            break;
210        }
211
212        case kWhatSetVideoNativeWindow:
213        {
214            ALOGV("kWhatSetVideoNativeWindow");
215
216            sp<RefBase> obj;
217            CHECK(msg->findObject("native-window", &obj));
218
219            mNativeWindow = static_cast<NativeWindowWrapper *>(obj.get());
220            break;
221        }
222
223        case kWhatSetAudioSink:
224        {
225            ALOGV("kWhatSetAudioSink");
226
227            sp<RefBase> obj;
228            CHECK(msg->findObject("sink", &obj));
229
230            mAudioSink = static_cast<MediaPlayerBase::AudioSink *>(obj.get());
231            break;
232        }
233
234        case kWhatStart:
235        {
236            ALOGV("kWhatStart");
237
238            mVideoIsAVC = false;
239            mAudioEOS = false;
240            mVideoEOS = false;
241            mSkipRenderingAudioUntilMediaTimeUs = -1;
242            mSkipRenderingVideoUntilMediaTimeUs = -1;
243            mVideoLateByUs = 0;
244            mNumFramesTotal = 0;
245            mNumFramesDropped = 0;
246
247            mSource->start();
248
249            mRenderer = new Renderer(
250                    mAudioSink,
251                    new AMessage(kWhatRendererNotify, id()));
252
253            looper()->registerHandler(mRenderer);
254
255            postScanSources();
256            break;
257        }
258
259        case kWhatScanSources:
260        {
261            int32_t generation;
262            CHECK(msg->findInt32("generation", &generation));
263            if (generation != mScanSourcesGeneration) {
264                // Drop obsolete msg.
265                break;
266            }
267
268            mScanSourcesPending = false;
269
270            ALOGV("scanning sources haveAudio=%d, haveVideo=%d",
271                 mAudioDecoder != NULL, mVideoDecoder != NULL);
272
273            if (mNativeWindow != NULL) {
274                instantiateDecoder(false, &mVideoDecoder);
275            }
276
277            if (mAudioSink != NULL) {
278                instantiateDecoder(true, &mAudioDecoder);
279            }
280
281            status_t err;
282            if ((err = mSource->feedMoreTSData()) != OK) {
283                if (mAudioDecoder == NULL && mVideoDecoder == NULL) {
284                    // We're not currently decoding anything (no audio or
285                    // video tracks found) and we just ran out of input data.
286
287                    if (err == ERROR_END_OF_STREAM) {
288                        notifyListener(MEDIA_PLAYBACK_COMPLETE, 0, 0);
289                    } else {
290                        notifyListener(MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, err);
291                    }
292                }
293                break;
294            }
295
296            if ((mAudioDecoder == NULL && mAudioSink != NULL)
297                    || (mVideoDecoder == NULL && mNativeWindow != NULL)) {
298                msg->post(100000ll);
299                mScanSourcesPending = true;
300            }
301            break;
302        }
303
304        case kWhatVideoNotify:
305        case kWhatAudioNotify:
306        {
307            bool audio = msg->what() == kWhatAudioNotify;
308
309            sp<AMessage> codecRequest;
310            CHECK(msg->findMessage("codec-request", &codecRequest));
311
312            int32_t what;
313            CHECK(codecRequest->findInt32("what", &what));
314
315            if (what == ACodec::kWhatFillThisBuffer) {
316                status_t err = feedDecoderInputData(
317                        audio, codecRequest);
318
319                if (err == -EWOULDBLOCK) {
320                    if (mSource->feedMoreTSData() == OK) {
321                        msg->post(10000ll);
322                    }
323                }
324            } else if (what == ACodec::kWhatEOS) {
325                int32_t err;
326                CHECK(codecRequest->findInt32("err", &err));
327
328                if (err == ERROR_END_OF_STREAM) {
329                    ALOGV("got %s decoder EOS", audio ? "audio" : "video");
330                } else {
331                    ALOGV("got %s decoder EOS w/ error %d",
332                         audio ? "audio" : "video",
333                         err);
334                }
335
336                mRenderer->queueEOS(audio, err);
337            } else if (what == ACodec::kWhatFlushCompleted) {
338                bool needShutdown;
339
340                if (audio) {
341                    CHECK(IsFlushingState(mFlushingAudio, &needShutdown));
342                    mFlushingAudio = FLUSHED;
343                } else {
344                    CHECK(IsFlushingState(mFlushingVideo, &needShutdown));
345                    mFlushingVideo = FLUSHED;
346
347                    mVideoLateByUs = 0;
348                }
349
350                ALOGV("decoder %s flush completed", audio ? "audio" : "video");
351
352                if (needShutdown) {
353                    ALOGV("initiating %s decoder shutdown",
354                         audio ? "audio" : "video");
355
356                    (audio ? mAudioDecoder : mVideoDecoder)->initiateShutdown();
357
358                    if (audio) {
359                        mFlushingAudio = SHUTTING_DOWN_DECODER;
360                    } else {
361                        mFlushingVideo = SHUTTING_DOWN_DECODER;
362                    }
363                }
364
365                finishFlushIfPossible();
366            } else if (what == ACodec::kWhatOutputFormatChanged) {
367                if (audio) {
368                    int32_t numChannels;
369                    CHECK(codecRequest->findInt32("channel-count", &numChannels));
370
371                    int32_t sampleRate;
372                    CHECK(codecRequest->findInt32("sample-rate", &sampleRate));
373
374                    ALOGV("Audio output format changed to %d Hz, %d channels",
375                         sampleRate, numChannels);
376
377                    mAudioSink->close();
378
379                    audio_output_flags_t flags;
380                    int64_t durationUs;
381                    // FIXME: we should handle the case where the video decoder is created after
382                    // we receive the format change indication. Current code will just make that
383                    // we select deep buffer with video which should not be a problem as it should
384                    // not prevent from keeping A/V sync.
385                    if (mVideoDecoder == NULL &&
386                            mSource->getDuration(&durationUs) == OK &&
387                            durationUs > AUDIO_SINK_MIN_DEEP_BUFFER_DURATION_US) {
388                        flags = AUDIO_OUTPUT_FLAG_DEEP_BUFFER;
389                    } else {
390                        flags = AUDIO_OUTPUT_FLAG_NONE;
391                    }
392
393                    int32_t channelMask;
394                    if (!codecRequest->findInt32("channel-mask", &channelMask)) {
395                        channelMask = CHANNEL_MASK_USE_CHANNEL_ORDER;
396                    }
397
398                    CHECK_EQ(mAudioSink->open(
399                                sampleRate,
400                                numChannels,
401                                (audio_channel_mask_t)channelMask,
402                                AUDIO_FORMAT_PCM_16_BIT,
403                                8 /* bufferCount */,
404                                NULL,
405                                NULL,
406                                flags),
407                             (status_t)OK);
408                    mAudioSink->start();
409
410                    mRenderer->signalAudioSinkChanged();
411                } else {
412                    // video
413
414                    int32_t width, height;
415                    CHECK(codecRequest->findInt32("width", &width));
416                    CHECK(codecRequest->findInt32("height", &height));
417
418                    int32_t cropLeft, cropTop, cropRight, cropBottom;
419                    CHECK(codecRequest->findRect(
420                                "crop",
421                                &cropLeft, &cropTop, &cropRight, &cropBottom));
422
423                    ALOGV("Video output format changed to %d x %d "
424                         "(crop: %d x %d @ (%d, %d))",
425                         width, height,
426                         (cropRight - cropLeft + 1),
427                         (cropBottom - cropTop + 1),
428                         cropLeft, cropTop);
429
430                    notifyListener(
431                            MEDIA_SET_VIDEO_SIZE,
432                            cropRight - cropLeft + 1,
433                            cropBottom - cropTop + 1);
434                }
435            } else if (what == ACodec::kWhatShutdownCompleted) {
436                ALOGV("%s shutdown completed", audio ? "audio" : "video");
437                if (audio) {
438                    mAudioDecoder.clear();
439
440                    CHECK_EQ((int)mFlushingAudio, (int)SHUTTING_DOWN_DECODER);
441                    mFlushingAudio = SHUT_DOWN;
442                } else {
443                    mVideoDecoder.clear();
444
445                    CHECK_EQ((int)mFlushingVideo, (int)SHUTTING_DOWN_DECODER);
446                    mFlushingVideo = SHUT_DOWN;
447                }
448
449                finishFlushIfPossible();
450            } else if (what == ACodec::kWhatError) {
451                ALOGE("Received error from %s decoder, aborting playback.",
452                     audio ? "audio" : "video");
453
454                mRenderer->queueEOS(audio, UNKNOWN_ERROR);
455            } else if (what == ACodec::kWhatDrainThisBuffer) {
456                renderBuffer(audio, codecRequest);
457            } else {
458                ALOGV("Unhandled codec notification %d.", what);
459            }
460
461            break;
462        }
463
464        case kWhatRendererNotify:
465        {
466            int32_t what;
467            CHECK(msg->findInt32("what", &what));
468
469            if (what == Renderer::kWhatEOS) {
470                int32_t audio;
471                CHECK(msg->findInt32("audio", &audio));
472
473                int32_t finalResult;
474                CHECK(msg->findInt32("finalResult", &finalResult));
475
476                if (audio) {
477                    mAudioEOS = true;
478                } else {
479                    mVideoEOS = true;
480                }
481
482                if (finalResult == ERROR_END_OF_STREAM) {
483                    ALOGV("reached %s EOS", audio ? "audio" : "video");
484                } else {
485                    ALOGE("%s track encountered an error (%d)",
486                         audio ? "audio" : "video", finalResult);
487
488                    notifyListener(
489                            MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, finalResult);
490                }
491
492                if ((mAudioEOS || mAudioDecoder == NULL)
493                        && (mVideoEOS || mVideoDecoder == NULL)) {
494                    notifyListener(MEDIA_PLAYBACK_COMPLETE, 0, 0);
495                }
496            } else if (what == Renderer::kWhatPosition) {
497                int64_t positionUs;
498                CHECK(msg->findInt64("positionUs", &positionUs));
499
500                CHECK(msg->findInt64("videoLateByUs", &mVideoLateByUs));
501
502                if (mDriver != NULL) {
503                    sp<NuPlayerDriver> driver = mDriver.promote();
504                    if (driver != NULL) {
505                        driver->notifyPosition(positionUs);
506
507                        driver->notifyFrameStats(
508                                mNumFramesTotal, mNumFramesDropped);
509                    }
510                }
511            } else if (what == Renderer::kWhatFlushComplete) {
512                CHECK_EQ(what, (int32_t)Renderer::kWhatFlushComplete);
513
514                int32_t audio;
515                CHECK(msg->findInt32("audio", &audio));
516
517                ALOGV("renderer %s flush completed.", audio ? "audio" : "video");
518            } else if (what == Renderer::kWhatVideoRenderingStart) {
519                notifyListener(MEDIA_INFO, MEDIA_INFO_RENDERING_START, 0);
520            }
521            break;
522        }
523
524        case kWhatMoreDataQueued:
525        {
526            break;
527        }
528
529        case kWhatReset:
530        {
531            ALOGV("kWhatReset");
532
533            if (mRenderer != NULL) {
534                // There's an edge case where the renderer owns all output
535                // buffers and is paused, therefore the decoder will not read
536                // more input data and will never encounter the matching
537                // discontinuity. To avoid this, we resume the renderer.
538
539                if (mFlushingAudio == AWAITING_DISCONTINUITY
540                        || mFlushingVideo == AWAITING_DISCONTINUITY) {
541                    mRenderer->resume();
542                }
543            }
544
545            if (mFlushingAudio != NONE || mFlushingVideo != NONE) {
546                // We're currently flushing, postpone the reset until that's
547                // completed.
548
549                ALOGV("postponing reset mFlushingAudio=%d, mFlushingVideo=%d",
550                      mFlushingAudio, mFlushingVideo);
551
552                mResetPostponed = true;
553                break;
554            }
555
556            if (mAudioDecoder == NULL && mVideoDecoder == NULL) {
557                finishReset();
558                break;
559            }
560
561            mTimeDiscontinuityPending = true;
562
563            if (mAudioDecoder != NULL) {
564                flushDecoder(true /* audio */, true /* needShutdown */);
565            }
566
567            if (mVideoDecoder != NULL) {
568                flushDecoder(false /* audio */, true /* needShutdown */);
569            }
570
571            mResetInProgress = true;
572            break;
573        }
574
575        case kWhatSeek:
576        {
577            int64_t seekTimeUs;
578            CHECK(msg->findInt64("seekTimeUs", &seekTimeUs));
579
580            ALOGV("kWhatSeek seekTimeUs=%lld us (%.2f secs)",
581                 seekTimeUs, seekTimeUs / 1E6);
582
583            mSource->seekTo(seekTimeUs);
584
585            if (mDriver != NULL) {
586                sp<NuPlayerDriver> driver = mDriver.promote();
587                if (driver != NULL) {
588                    driver->notifySeekComplete();
589                }
590            }
591
592            break;
593        }
594
595        case kWhatPause:
596        {
597            CHECK(mRenderer != NULL);
598            mRenderer->pause();
599            break;
600        }
601
602        case kWhatResume:
603        {
604            CHECK(mRenderer != NULL);
605            mRenderer->resume();
606            break;
607        }
608
609        default:
610            TRESPASS();
611            break;
612    }
613}
614
615void NuPlayer::finishFlushIfPossible() {
616    if (mFlushingAudio != FLUSHED && mFlushingAudio != SHUT_DOWN) {
617        return;
618    }
619
620    if (mFlushingVideo != FLUSHED && mFlushingVideo != SHUT_DOWN) {
621        return;
622    }
623
624    ALOGV("both audio and video are flushed now.");
625
626    if (mTimeDiscontinuityPending) {
627        mRenderer->signalTimeDiscontinuity();
628        mTimeDiscontinuityPending = false;
629    }
630
631    if (mAudioDecoder != NULL) {
632        mAudioDecoder->signalResume();
633    }
634
635    if (mVideoDecoder != NULL) {
636        mVideoDecoder->signalResume();
637    }
638
639    mFlushingAudio = NONE;
640    mFlushingVideo = NONE;
641
642    if (mResetInProgress) {
643        ALOGV("reset completed");
644
645        mResetInProgress = false;
646        finishReset();
647    } else if (mResetPostponed) {
648        (new AMessage(kWhatReset, id()))->post();
649        mResetPostponed = false;
650    } else if (mAudioDecoder == NULL || mVideoDecoder == NULL) {
651        postScanSources();
652    }
653}
654
655void NuPlayer::finishReset() {
656    CHECK(mAudioDecoder == NULL);
657    CHECK(mVideoDecoder == NULL);
658
659    ++mScanSourcesGeneration;
660    mScanSourcesPending = false;
661
662    mRenderer.clear();
663
664    if (mSource != NULL) {
665        mSource->stop();
666        mSource.clear();
667    }
668
669    if (mDriver != NULL) {
670        sp<NuPlayerDriver> driver = mDriver.promote();
671        if (driver != NULL) {
672            driver->notifyResetComplete();
673        }
674    }
675}
676
677void NuPlayer::postScanSources() {
678    if (mScanSourcesPending) {
679        return;
680    }
681
682    sp<AMessage> msg = new AMessage(kWhatScanSources, id());
683    msg->setInt32("generation", mScanSourcesGeneration);
684    msg->post();
685
686    mScanSourcesPending = true;
687}
688
689status_t NuPlayer::instantiateDecoder(bool audio, sp<Decoder> *decoder) {
690    if (*decoder != NULL) {
691        return OK;
692    }
693
694    sp<AMessage> format = mSource->getFormat(audio);
695
696    if (format == NULL) {
697        return -EWOULDBLOCK;
698    }
699
700    if (!audio) {
701        AString mime;
702        CHECK(format->findString("mime", &mime));
703        mVideoIsAVC = !strcasecmp(MEDIA_MIMETYPE_VIDEO_AVC, mime.c_str());
704    }
705
706    sp<AMessage> notify =
707        new AMessage(audio ? kWhatAudioNotify : kWhatVideoNotify,
708                     id());
709
710    *decoder = audio ? new Decoder(notify) :
711                       new Decoder(notify, mNativeWindow);
712    looper()->registerHandler(*decoder);
713
714    (*decoder)->configure(format);
715
716    int64_t durationUs;
717    if (mDriver != NULL && mSource->getDuration(&durationUs) == OK) {
718        sp<NuPlayerDriver> driver = mDriver.promote();
719        if (driver != NULL) {
720            driver->notifyDuration(durationUs);
721        }
722    }
723
724    return OK;
725}
726
727status_t NuPlayer::feedDecoderInputData(bool audio, const sp<AMessage> &msg) {
728    sp<AMessage> reply;
729    CHECK(msg->findMessage("reply", &reply));
730
731    if ((audio && IsFlushingState(mFlushingAudio))
732            || (!audio && IsFlushingState(mFlushingVideo))) {
733        reply->setInt32("err", INFO_DISCONTINUITY);
734        reply->post();
735        return OK;
736    }
737
738    sp<ABuffer> accessUnit;
739
740    bool dropAccessUnit;
741    do {
742        status_t err = mSource->dequeueAccessUnit(audio, &accessUnit);
743
744        if (err == -EWOULDBLOCK) {
745            return err;
746        } else if (err != OK) {
747            if (err == INFO_DISCONTINUITY) {
748                int32_t type;
749                CHECK(accessUnit->meta()->findInt32("discontinuity", &type));
750
751                bool formatChange =
752                    (audio &&
753                     (type & ATSParser::DISCONTINUITY_AUDIO_FORMAT))
754                    || (!audio &&
755                            (type & ATSParser::DISCONTINUITY_VIDEO_FORMAT));
756
757                bool timeChange = (type & ATSParser::DISCONTINUITY_TIME) != 0;
758
759                ALOGI("%s discontinuity (formatChange=%d, time=%d)",
760                     audio ? "audio" : "video", formatChange, timeChange);
761
762                if (audio) {
763                    mSkipRenderingAudioUntilMediaTimeUs = -1;
764                } else {
765                    mSkipRenderingVideoUntilMediaTimeUs = -1;
766                }
767
768                if (timeChange) {
769                    sp<AMessage> extra;
770                    if (accessUnit->meta()->findMessage("extra", &extra)
771                            && extra != NULL) {
772                        int64_t resumeAtMediaTimeUs;
773                        if (extra->findInt64(
774                                    "resume-at-mediatimeUs", &resumeAtMediaTimeUs)) {
775                            ALOGI("suppressing rendering of %s until %lld us",
776                                    audio ? "audio" : "video", resumeAtMediaTimeUs);
777
778                            if (audio) {
779                                mSkipRenderingAudioUntilMediaTimeUs =
780                                    resumeAtMediaTimeUs;
781                            } else {
782                                mSkipRenderingVideoUntilMediaTimeUs =
783                                    resumeAtMediaTimeUs;
784                            }
785                        }
786                    }
787                }
788
789                mTimeDiscontinuityPending =
790                    mTimeDiscontinuityPending || timeChange;
791
792                if (formatChange || timeChange) {
793                    flushDecoder(audio, formatChange);
794                } else {
795                    // This stream is unaffected by the discontinuity
796
797                    if (audio) {
798                        mFlushingAudio = FLUSHED;
799                    } else {
800                        mFlushingVideo = FLUSHED;
801                    }
802
803                    finishFlushIfPossible();
804
805                    return -EWOULDBLOCK;
806                }
807            }
808
809            reply->setInt32("err", err);
810            reply->post();
811            return OK;
812        }
813
814        if (!audio) {
815            ++mNumFramesTotal;
816        }
817
818        dropAccessUnit = false;
819        if (!audio
820                && mVideoLateByUs > 100000ll
821                && mVideoIsAVC
822                && !IsAVCReferenceFrame(accessUnit)) {
823            dropAccessUnit = true;
824            ++mNumFramesDropped;
825        }
826    } while (dropAccessUnit);
827
828    // ALOGV("returned a valid buffer of %s data", audio ? "audio" : "video");
829
830#if 0
831    int64_t mediaTimeUs;
832    CHECK(accessUnit->meta()->findInt64("timeUs", &mediaTimeUs));
833    ALOGV("feeding %s input buffer at media time %.2f secs",
834         audio ? "audio" : "video",
835         mediaTimeUs / 1E6);
836#endif
837
838    reply->setBuffer("buffer", accessUnit);
839    reply->post();
840
841    return OK;
842}
843
844void NuPlayer::renderBuffer(bool audio, const sp<AMessage> &msg) {
845    // ALOGV("renderBuffer %s", audio ? "audio" : "video");
846
847    sp<AMessage> reply;
848    CHECK(msg->findMessage("reply", &reply));
849
850    if (IsFlushingState(audio ? mFlushingAudio : mFlushingVideo)) {
851        // We're currently attempting to flush the decoder, in order
852        // to complete this, the decoder wants all its buffers back,
853        // so we don't want any output buffers it sent us (from before
854        // we initiated the flush) to be stuck in the renderer's queue.
855
856        ALOGV("we're still flushing the %s decoder, sending its output buffer"
857             " right back.", audio ? "audio" : "video");
858
859        reply->post();
860        return;
861    }
862
863    sp<ABuffer> buffer;
864    CHECK(msg->findBuffer("buffer", &buffer));
865
866    int64_t &skipUntilMediaTimeUs =
867        audio
868            ? mSkipRenderingAudioUntilMediaTimeUs
869            : mSkipRenderingVideoUntilMediaTimeUs;
870
871    if (skipUntilMediaTimeUs >= 0) {
872        int64_t mediaTimeUs;
873        CHECK(buffer->meta()->findInt64("timeUs", &mediaTimeUs));
874
875        if (mediaTimeUs < skipUntilMediaTimeUs) {
876            ALOGV("dropping %s buffer at time %lld as requested.",
877                 audio ? "audio" : "video",
878                 mediaTimeUs);
879
880            reply->post();
881            return;
882        }
883
884        skipUntilMediaTimeUs = -1;
885    }
886
887    mRenderer->queueBuffer(audio, buffer, reply);
888}
889
890void NuPlayer::notifyListener(int msg, int ext1, int ext2) {
891    if (mDriver == NULL) {
892        return;
893    }
894
895    sp<NuPlayerDriver> driver = mDriver.promote();
896
897    if (driver == NULL) {
898        return;
899    }
900
901    driver->notifyListener(msg, ext1, ext2);
902}
903
904void NuPlayer::flushDecoder(bool audio, bool needShutdown) {
905    if ((audio && mAudioDecoder == NULL) || (!audio && mVideoDecoder == NULL)) {
906        ALOGI("flushDecoder %s without decoder present",
907             audio ? "audio" : "video");
908    }
909
910    // Make sure we don't continue to scan sources until we finish flushing.
911    ++mScanSourcesGeneration;
912    mScanSourcesPending = false;
913
914    (audio ? mAudioDecoder : mVideoDecoder)->signalFlush();
915    mRenderer->flush(audio);
916
917    FlushStatus newStatus =
918        needShutdown ? FLUSHING_DECODER_SHUTDOWN : FLUSHING_DECODER;
919
920    if (audio) {
921        CHECK(mFlushingAudio == NONE
922                || mFlushingAudio == AWAITING_DISCONTINUITY);
923
924        mFlushingAudio = newStatus;
925
926        if (mFlushingVideo == NONE) {
927            mFlushingVideo = (mVideoDecoder != NULL)
928                ? AWAITING_DISCONTINUITY
929                : FLUSHED;
930        }
931    } else {
932        CHECK(mFlushingVideo == NONE
933                || mFlushingVideo == AWAITING_DISCONTINUITY);
934
935        mFlushingVideo = newStatus;
936
937        if (mFlushingAudio == NONE) {
938            mFlushingAudio = (mAudioDecoder != NULL)
939                ? AWAITING_DISCONTINUITY
940                : FLUSHED;
941        }
942    }
943}
944
945sp<AMessage> NuPlayer::Source::getFormat(bool audio) {
946    sp<MetaData> meta = getFormatMeta(audio);
947
948    if (meta == NULL) {
949        return NULL;
950    }
951
952    sp<AMessage> msg = new AMessage;
953
954    if(convertMetaDataToMessage(meta, &msg) == OK) {
955        return msg;
956    }
957    return NULL;
958}
959
960}  // namespace android
961