NuPlayer.cpp revision d7a61ad1e9ad1e59b5ef5d8f6e37da400c01d01c 
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      mVideoScalingMode(NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW) {
73}
74
75NuPlayer::~NuPlayer() {
76}
77
78void NuPlayer::setUID(uid_t uid) {
79    mUIDValid = true;
80    mUID = uid;
81}
82
83void NuPlayer::setDriver(const wp<NuPlayerDriver> &driver) {
84    mDriver = driver;
85}
86
87void NuPlayer::setDataSource(const sp<IStreamSource> &source) {
88    sp<AMessage> msg = new AMessage(kWhatSetDataSource, id());
89
90    char prop[PROPERTY_VALUE_MAX];
91    if (property_get("media.stagefright.use-mp4source", prop, NULL)
92            && (!strcmp(prop, "1") || !strcasecmp(prop, "true"))) {
93        msg->setObject("source", new MP4Source(source));
94    } else {
95        msg->setObject("source", new StreamingSource(source));
96    }
97
98    msg->post();
99}
100
101static bool IsHTTPLiveURL(const char *url) {
102    if (!strncasecmp("http://", url, 7)
103            || !strncasecmp("https://", url, 8)) {
104        size_t len = strlen(url);
105        if (len >= 5 && !strcasecmp(".m3u8", &url[len - 5])) {
106            return true;
107        }
108
109        if (strstr(url,"m3u8")) {
110            return true;
111        }
112    }
113
114    return false;
115}
116
117void NuPlayer::setDataSource(
118        const char *url, const KeyedVector<String8, String8> *headers) {
119    sp<AMessage> msg = new AMessage(kWhatSetDataSource, id());
120
121    sp<Source> source;
122    if (IsHTTPLiveURL(url)) {
123        source = new HTTPLiveSource(url, headers, mUIDValid, mUID);
124    } else if (!strncasecmp(url, "rtsp://", 7)) {
125        source = new RTSPSource(url, headers, mUIDValid, mUID);
126    } else {
127        source = new GenericSource(url, headers, mUIDValid, mUID);
128    }
129
130    msg->setObject("source", source);
131    msg->post();
132}
133
134void NuPlayer::setDataSource(int fd, int64_t offset, int64_t length) {
135    sp<AMessage> msg = new AMessage(kWhatSetDataSource, id());
136
137    sp<Source> source = new GenericSource(fd, offset, length);
138    msg->setObject("source", source);
139    msg->post();
140}
141
142void NuPlayer::setVideoSurfaceTexture(const sp<ISurfaceTexture> &surfaceTexture) {
143    sp<AMessage> msg = new AMessage(kWhatSetVideoNativeWindow, id());
144    sp<SurfaceTextureClient> surfaceTextureClient(surfaceTexture != NULL ?
145                new SurfaceTextureClient(surfaceTexture) : NULL);
146    msg->setObject("native-window", new NativeWindowWrapper(surfaceTextureClient));
147    msg->post();
148}
149
150void NuPlayer::setAudioSink(const sp<MediaPlayerBase::AudioSink> &sink) {
151    sp<AMessage> msg = new AMessage(kWhatSetAudioSink, id());
152    msg->setObject("sink", sink);
153    msg->post();
154}
155
156void NuPlayer::start() {
157    (new AMessage(kWhatStart, id()))->post();
158}
159
160void NuPlayer::pause() {
161    (new AMessage(kWhatPause, id()))->post();
162}
163
164void NuPlayer::resume() {
165    (new AMessage(kWhatResume, id()))->post();
166}
167
168void NuPlayer::resetAsync() {
169    (new AMessage(kWhatReset, id()))->post();
170}
171
172void NuPlayer::seekToAsync(int64_t seekTimeUs) {
173    sp<AMessage> msg = new AMessage(kWhatSeek, id());
174    msg->setInt64("seekTimeUs", seekTimeUs);
175    msg->post();
176}
177
178// static
179bool NuPlayer::IsFlushingState(FlushStatus state, bool *needShutdown) {
180    switch (state) {
181        case FLUSHING_DECODER:
182            if (needShutdown != NULL) {
183                *needShutdown = false;
184            }
185            return true;
186
187        case FLUSHING_DECODER_SHUTDOWN:
188            if (needShutdown != NULL) {
189                *needShutdown = true;
190            }
191            return true;
192
193        default:
194            return false;
195    }
196}
197
198void NuPlayer::onMessageReceived(const sp<AMessage> &msg) {
199    switch (msg->what()) {
200        case kWhatSetDataSource:
201        {
202            ALOGV("kWhatSetDataSource");
203
204            CHECK(mSource == NULL);
205
206            sp<RefBase> obj;
207            CHECK(msg->findObject("source", &obj));
208
209            mSource = static_cast<Source *>(obj.get());
210            break;
211        }
212
213        case kWhatSetVideoNativeWindow:
214        {
215            ALOGV("kWhatSetVideoNativeWindow");
216
217            sp<RefBase> obj;
218            CHECK(msg->findObject("native-window", &obj));
219
220            mNativeWindow = static_cast<NativeWindowWrapper *>(obj.get());
221
222            // XXX - ignore error from setVideoScalingMode for now
223            setVideoScalingMode(mVideoScalingMode);
224            break;
225        }
226
227        case kWhatSetAudioSink:
228        {
229            ALOGV("kWhatSetAudioSink");
230
231            sp<RefBase> obj;
232            CHECK(msg->findObject("sink", &obj));
233
234            mAudioSink = static_cast<MediaPlayerBase::AudioSink *>(obj.get());
235            break;
236        }
237
238        case kWhatStart:
239        {
240            ALOGV("kWhatStart");
241
242            mVideoIsAVC = false;
243            mAudioEOS = false;
244            mVideoEOS = false;
245            mSkipRenderingAudioUntilMediaTimeUs = -1;
246            mSkipRenderingVideoUntilMediaTimeUs = -1;
247            mVideoLateByUs = 0;
248            mNumFramesTotal = 0;
249            mNumFramesDropped = 0;
250
251            mSource->start();
252
253            mRenderer = new Renderer(
254                    mAudioSink,
255                    new AMessage(kWhatRendererNotify, id()));
256
257            looper()->registerHandler(mRenderer);
258
259            postScanSources();
260            break;
261        }
262
263        case kWhatScanSources:
264        {
265            int32_t generation;
266            CHECK(msg->findInt32("generation", &generation));
267            if (generation != mScanSourcesGeneration) {
268                // Drop obsolete msg.
269                break;
270            }
271
272            mScanSourcesPending = false;
273
274            ALOGV("scanning sources haveAudio=%d, haveVideo=%d",
275                 mAudioDecoder != NULL, mVideoDecoder != NULL);
276
277            if (mNativeWindow != NULL) {
278                instantiateDecoder(false, &mVideoDecoder);
279            }
280
281            if (mAudioSink != NULL) {
282                instantiateDecoder(true, &mAudioDecoder);
283            }
284
285            status_t err;
286            if ((err = mSource->feedMoreTSData()) != OK) {
287                if (mAudioDecoder == NULL && mVideoDecoder == NULL) {
288                    // We're not currently decoding anything (no audio or
289                    // video tracks found) and we just ran out of input data.
290
291                    if (err == ERROR_END_OF_STREAM) {
292                        notifyListener(MEDIA_PLAYBACK_COMPLETE, 0, 0);
293                    } else {
294                        notifyListener(MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, err);
295                    }
296                }
297                break;
298            }
299
300            if ((mAudioDecoder == NULL && mAudioSink != NULL)
301                    || (mVideoDecoder == NULL && mNativeWindow != NULL)) {
302                msg->post(100000ll);
303                mScanSourcesPending = true;
304            }
305            break;
306        }
307
308        case kWhatVideoNotify:
309        case kWhatAudioNotify:
310        {
311            bool audio = msg->what() == kWhatAudioNotify;
312
313            sp<AMessage> codecRequest;
314            CHECK(msg->findMessage("codec-request", &codecRequest));
315
316            int32_t what;
317            CHECK(codecRequest->findInt32("what", &what));
318
319            if (what == ACodec::kWhatFillThisBuffer) {
320                status_t err = feedDecoderInputData(
321                        audio, codecRequest);
322
323                if (err == -EWOULDBLOCK) {
324                    if (mSource->feedMoreTSData() == OK) {
325                        msg->post(10000ll);
326                    }
327                }
328            } else if (what == ACodec::kWhatEOS) {
329                int32_t err;
330                CHECK(codecRequest->findInt32("err", &err));
331
332                if (err == ERROR_END_OF_STREAM) {
333                    ALOGV("got %s decoder EOS", audio ? "audio" : "video");
334                } else {
335                    ALOGV("got %s decoder EOS w/ error %d",
336                         audio ? "audio" : "video",
337                         err);
338                }
339
340                mRenderer->queueEOS(audio, err);
341            } else if (what == ACodec::kWhatFlushCompleted) {
342                bool needShutdown;
343
344                if (audio) {
345                    CHECK(IsFlushingState(mFlushingAudio, &needShutdown));
346                    mFlushingAudio = FLUSHED;
347                } else {
348                    CHECK(IsFlushingState(mFlushingVideo, &needShutdown));
349                    mFlushingVideo = FLUSHED;
350
351                    mVideoLateByUs = 0;
352                }
353
354                ALOGV("decoder %s flush completed", audio ? "audio" : "video");
355
356                if (needShutdown) {
357                    ALOGV("initiating %s decoder shutdown",
358                         audio ? "audio" : "video");
359
360                    (audio ? mAudioDecoder : mVideoDecoder)->initiateShutdown();
361
362                    if (audio) {
363                        mFlushingAudio = SHUTTING_DOWN_DECODER;
364                    } else {
365                        mFlushingVideo = SHUTTING_DOWN_DECODER;
366                    }
367                }
368
369                finishFlushIfPossible();
370            } else if (what == ACodec::kWhatOutputFormatChanged) {
371                if (audio) {
372                    int32_t numChannels;
373                    CHECK(codecRequest->findInt32("channel-count", &numChannels));
374
375                    int32_t sampleRate;
376                    CHECK(codecRequest->findInt32("sample-rate", &sampleRate));
377
378                    ALOGV("Audio output format changed to %d Hz, %d channels",
379                         sampleRate, numChannels);
380
381                    mAudioSink->close();
382
383                    audio_output_flags_t flags;
384                    int64_t durationUs;
385                    // FIXME: we should handle the case where the video decoder is created after
386                    // we receive the format change indication. Current code will just make that
387                    // we select deep buffer with video which should not be a problem as it should
388                    // not prevent from keeping A/V sync.
389                    if (mVideoDecoder == NULL &&
390                            mSource->getDuration(&durationUs) == OK &&
391                            durationUs > AUDIO_SINK_MIN_DEEP_BUFFER_DURATION_US) {
392                        flags = AUDIO_OUTPUT_FLAG_DEEP_BUFFER;
393                    } else {
394                        flags = AUDIO_OUTPUT_FLAG_NONE;
395                    }
396
397                    int32_t channelMask;
398                    if (!codecRequest->findInt32("channel-mask", &channelMask)) {
399                        channelMask = CHANNEL_MASK_USE_CHANNEL_ORDER;
400                    }
401
402                    CHECK_EQ(mAudioSink->open(
403                                sampleRate,
404                                numChannels,
405                                (audio_channel_mask_t)channelMask,
406                                AUDIO_FORMAT_PCM_16_BIT,
407                                8 /* bufferCount */,
408                                NULL,
409                                NULL,
410                                flags),
411                             (status_t)OK);
412                    mAudioSink->start();
413
414                    mRenderer->signalAudioSinkChanged();
415                } else {
416                    // video
417
418                    int32_t width, height;
419                    CHECK(codecRequest->findInt32("width", &width));
420                    CHECK(codecRequest->findInt32("height", &height));
421
422                    int32_t cropLeft, cropTop, cropRight, cropBottom;
423                    CHECK(codecRequest->findRect(
424                                "crop",
425                                &cropLeft, &cropTop, &cropRight, &cropBottom));
426
427                    ALOGV("Video output format changed to %d x %d "
428                         "(crop: %d x %d @ (%d, %d))",
429                         width, height,
430                         (cropRight - cropLeft + 1),
431                         (cropBottom - cropTop + 1),
432                         cropLeft, cropTop);
433
434                    notifyListener(
435                            MEDIA_SET_VIDEO_SIZE,
436                            cropRight - cropLeft + 1,
437                            cropBottom - cropTop + 1);
438                }
439            } else if (what == ACodec::kWhatShutdownCompleted) {
440                ALOGV("%s shutdown completed", audio ? "audio" : "video");
441                if (audio) {
442                    mAudioDecoder.clear();
443
444                    CHECK_EQ((int)mFlushingAudio, (int)SHUTTING_DOWN_DECODER);
445                    mFlushingAudio = SHUT_DOWN;
446                } else {
447                    mVideoDecoder.clear();
448
449                    CHECK_EQ((int)mFlushingVideo, (int)SHUTTING_DOWN_DECODER);
450                    mFlushingVideo = SHUT_DOWN;
451                }
452
453                finishFlushIfPossible();
454            } else if (what == ACodec::kWhatError) {
455                ALOGE("Received error from %s decoder, aborting playback.",
456                     audio ? "audio" : "video");
457
458                mRenderer->queueEOS(audio, UNKNOWN_ERROR);
459            } else if (what == ACodec::kWhatDrainThisBuffer) {
460                renderBuffer(audio, codecRequest);
461            } else {
462                ALOGV("Unhandled codec notification %d.", what);
463            }
464
465            break;
466        }
467
468        case kWhatRendererNotify:
469        {
470            int32_t what;
471            CHECK(msg->findInt32("what", &what));
472
473            if (what == Renderer::kWhatEOS) {
474                int32_t audio;
475                CHECK(msg->findInt32("audio", &audio));
476
477                int32_t finalResult;
478                CHECK(msg->findInt32("finalResult", &finalResult));
479
480                if (audio) {
481                    mAudioEOS = true;
482                } else {
483                    mVideoEOS = true;
484                }
485
486                if (finalResult == ERROR_END_OF_STREAM) {
487                    ALOGV("reached %s EOS", audio ? "audio" : "video");
488                } else {
489                    ALOGE("%s track encountered an error (%d)",
490                         audio ? "audio" : "video", finalResult);
491
492                    notifyListener(
493                            MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, finalResult);
494                }
495
496                if ((mAudioEOS || mAudioDecoder == NULL)
497                        && (mVideoEOS || mVideoDecoder == NULL)) {
498                    notifyListener(MEDIA_PLAYBACK_COMPLETE, 0, 0);
499                }
500            } else if (what == Renderer::kWhatPosition) {
501                int64_t positionUs;
502                CHECK(msg->findInt64("positionUs", &positionUs));
503
504                CHECK(msg->findInt64("videoLateByUs", &mVideoLateByUs));
505
506                if (mDriver != NULL) {
507                    sp<NuPlayerDriver> driver = mDriver.promote();
508                    if (driver != NULL) {
509                        driver->notifyPosition(positionUs);
510
511                        driver->notifyFrameStats(
512                                mNumFramesTotal, mNumFramesDropped);
513                    }
514                }
515            } else if (what == Renderer::kWhatFlushComplete) {
516                int32_t audio;
517                CHECK(msg->findInt32("audio", &audio));
518
519                ALOGV("renderer %s flush completed.", audio ? "audio" : "video");
520            } else if (what == Renderer::kWhatVideoRenderingStart) {
521                notifyListener(MEDIA_INFO, MEDIA_INFO_RENDERING_START, 0);
522            }
523            break;
524        }
525
526        case kWhatMoreDataQueued:
527        {
528            break;
529        }
530
531        case kWhatReset:
532        {
533            ALOGV("kWhatReset");
534
535            if (mRenderer != NULL) {
536                // There's an edge case where the renderer owns all output
537                // buffers and is paused, therefore the decoder will not read
538                // more input data and will never encounter the matching
539                // discontinuity. To avoid this, we resume the renderer.
540
541                if (mFlushingAudio == AWAITING_DISCONTINUITY
542                        || mFlushingVideo == AWAITING_DISCONTINUITY) {
543                    mRenderer->resume();
544                }
545            }
546
547            if (mFlushingAudio != NONE || mFlushingVideo != NONE) {
548                // We're currently flushing, postpone the reset until that's
549                // completed.
550
551                ALOGV("postponing reset mFlushingAudio=%d, mFlushingVideo=%d",
552                      mFlushingAudio, mFlushingVideo);
553
554                mResetPostponed = true;
555                break;
556            }
557
558            if (mAudioDecoder == NULL && mVideoDecoder == NULL) {
559                finishReset();
560                break;
561            }
562
563            mTimeDiscontinuityPending = true;
564
565            if (mAudioDecoder != NULL) {
566                flushDecoder(true /* audio */, true /* needShutdown */);
567            }
568
569            if (mVideoDecoder != NULL) {
570                flushDecoder(false /* audio */, true /* needShutdown */);
571            }
572
573            mResetInProgress = true;
574            break;
575        }
576
577        case kWhatSeek:
578        {
579            int64_t seekTimeUs;
580            CHECK(msg->findInt64("seekTimeUs", &seekTimeUs));
581
582            ALOGV("kWhatSeek seekTimeUs=%lld us (%.2f secs)",
583                 seekTimeUs, seekTimeUs / 1E6);
584
585            mSource->seekTo(seekTimeUs);
586
587            if (mDriver != NULL) {
588                sp<NuPlayerDriver> driver = mDriver.promote();
589                if (driver != NULL) {
590                    driver->notifySeekComplete();
591                }
592            }
593
594            break;
595        }
596
597        case kWhatPause:
598        {
599            CHECK(mRenderer != NULL);
600            mRenderer->pause();
601            break;
602        }
603
604        case kWhatResume:
605        {
606            CHECK(mRenderer != NULL);
607            mRenderer->resume();
608            break;
609        }
610
611        default:
612            TRESPASS();
613            break;
614    }
615}
616
617void NuPlayer::finishFlushIfPossible() {
618    if (mFlushingAudio != FLUSHED && mFlushingAudio != SHUT_DOWN) {
619        return;
620    }
621
622    if (mFlushingVideo != FLUSHED && mFlushingVideo != SHUT_DOWN) {
623        return;
624    }
625
626    ALOGV("both audio and video are flushed now.");
627
628    if (mTimeDiscontinuityPending) {
629        mRenderer->signalTimeDiscontinuity();
630        mTimeDiscontinuityPending = false;
631    }
632
633    if (mAudioDecoder != NULL) {
634        mAudioDecoder->signalResume();
635    }
636
637    if (mVideoDecoder != NULL) {
638        mVideoDecoder->signalResume();
639    }
640
641    mFlushingAudio = NONE;
642    mFlushingVideo = NONE;
643
644    if (mResetInProgress) {
645        ALOGV("reset completed");
646
647        mResetInProgress = false;
648        finishReset();
649    } else if (mResetPostponed) {
650        (new AMessage(kWhatReset, id()))->post();
651        mResetPostponed = false;
652    } else if (mAudioDecoder == NULL || mVideoDecoder == NULL) {
653        postScanSources();
654    }
655}
656
657void NuPlayer::finishReset() {
658    CHECK(mAudioDecoder == NULL);
659    CHECK(mVideoDecoder == NULL);
660
661    ++mScanSourcesGeneration;
662    mScanSourcesPending = false;
663
664    mRenderer.clear();
665
666    if (mSource != NULL) {
667        mSource->stop();
668        mSource.clear();
669    }
670
671    if (mDriver != NULL) {
672        sp<NuPlayerDriver> driver = mDriver.promote();
673        if (driver != NULL) {
674            driver->notifyResetComplete();
675        }
676    }
677}
678
679void NuPlayer::postScanSources() {
680    if (mScanSourcesPending) {
681        return;
682    }
683
684    sp<AMessage> msg = new AMessage(kWhatScanSources, id());
685    msg->setInt32("generation", mScanSourcesGeneration);
686    msg->post();
687
688    mScanSourcesPending = true;
689}
690
691status_t NuPlayer::instantiateDecoder(bool audio, sp<Decoder> *decoder) {
692    if (*decoder != NULL) {
693        return OK;
694    }
695
696    sp<AMessage> format = mSource->getFormat(audio);
697
698    if (format == NULL) {
699        return -EWOULDBLOCK;
700    }
701
702    if (!audio) {
703        AString mime;
704        CHECK(format->findString("mime", &mime));
705        mVideoIsAVC = !strcasecmp(MEDIA_MIMETYPE_VIDEO_AVC, mime.c_str());
706    }
707
708    sp<AMessage> notify =
709        new AMessage(audio ? kWhatAudioNotify : kWhatVideoNotify,
710                     id());
711
712    *decoder = audio ? new Decoder(notify) :
713                       new Decoder(notify, mNativeWindow);
714    looper()->registerHandler(*decoder);
715
716    (*decoder)->configure(format);
717
718    int64_t durationUs;
719    if (mDriver != NULL && mSource->getDuration(&durationUs) == OK) {
720        sp<NuPlayerDriver> driver = mDriver.promote();
721        if (driver != NULL) {
722            driver->notifyDuration(durationUs);
723        }
724    }
725
726    return OK;
727}
728
729status_t NuPlayer::feedDecoderInputData(bool audio, const sp<AMessage> &msg) {
730    sp<AMessage> reply;
731    CHECK(msg->findMessage("reply", &reply));
732
733    if ((audio && IsFlushingState(mFlushingAudio))
734            || (!audio && IsFlushingState(mFlushingVideo))) {
735        reply->setInt32("err", INFO_DISCONTINUITY);
736        reply->post();
737        return OK;
738    }
739
740    sp<ABuffer> accessUnit;
741
742    bool dropAccessUnit;
743    do {
744        status_t err = mSource->dequeueAccessUnit(audio, &accessUnit);
745
746        if (err == -EWOULDBLOCK) {
747            return err;
748        } else if (err != OK) {
749            if (err == INFO_DISCONTINUITY) {
750                int32_t type;
751                CHECK(accessUnit->meta()->findInt32("discontinuity", &type));
752
753                bool formatChange =
754                    (audio &&
755                     (type & ATSParser::DISCONTINUITY_AUDIO_FORMAT))
756                    || (!audio &&
757                            (type & ATSParser::DISCONTINUITY_VIDEO_FORMAT));
758
759                bool timeChange = (type & ATSParser::DISCONTINUITY_TIME) != 0;
760
761                ALOGI("%s discontinuity (formatChange=%d, time=%d)",
762                     audio ? "audio" : "video", formatChange, timeChange);
763
764                if (audio) {
765                    mSkipRenderingAudioUntilMediaTimeUs = -1;
766                } else {
767                    mSkipRenderingVideoUntilMediaTimeUs = -1;
768                }
769
770                if (timeChange) {
771                    sp<AMessage> extra;
772                    if (accessUnit->meta()->findMessage("extra", &extra)
773                            && extra != NULL) {
774                        int64_t resumeAtMediaTimeUs;
775                        if (extra->findInt64(
776                                    "resume-at-mediatimeUs", &resumeAtMediaTimeUs)) {
777                            ALOGI("suppressing rendering of %s until %lld us",
778                                    audio ? "audio" : "video", resumeAtMediaTimeUs);
779
780                            if (audio) {
781                                mSkipRenderingAudioUntilMediaTimeUs =
782                                    resumeAtMediaTimeUs;
783                            } else {
784                                mSkipRenderingVideoUntilMediaTimeUs =
785                                    resumeAtMediaTimeUs;
786                            }
787                        }
788                    }
789                }
790
791                mTimeDiscontinuityPending =
792                    mTimeDiscontinuityPending || timeChange;
793
794                if (formatChange || timeChange) {
795                    flushDecoder(audio, formatChange);
796                } else {
797                    // This stream is unaffected by the discontinuity
798
799                    if (audio) {
800                        mFlushingAudio = FLUSHED;
801                    } else {
802                        mFlushingVideo = FLUSHED;
803                    }
804
805                    finishFlushIfPossible();
806
807                    return -EWOULDBLOCK;
808                }
809            }
810
811            reply->setInt32("err", err);
812            reply->post();
813            return OK;
814        }
815
816        if (!audio) {
817            ++mNumFramesTotal;
818        }
819
820        dropAccessUnit = false;
821        if (!audio
822                && mVideoLateByUs > 100000ll
823                && mVideoIsAVC
824                && !IsAVCReferenceFrame(accessUnit)) {
825            dropAccessUnit = true;
826            ++mNumFramesDropped;
827        }
828    } while (dropAccessUnit);
829
830    // ALOGV("returned a valid buffer of %s data", audio ? "audio" : "video");
831
832#if 0
833    int64_t mediaTimeUs;
834    CHECK(accessUnit->meta()->findInt64("timeUs", &mediaTimeUs));
835    ALOGV("feeding %s input buffer at media time %.2f secs",
836         audio ? "audio" : "video",
837         mediaTimeUs / 1E6);
838#endif
839
840    reply->setBuffer("buffer", accessUnit);
841    reply->post();
842
843    return OK;
844}
845
846void NuPlayer::renderBuffer(bool audio, const sp<AMessage> &msg) {
847    // ALOGV("renderBuffer %s", audio ? "audio" : "video");
848
849    sp<AMessage> reply;
850    CHECK(msg->findMessage("reply", &reply));
851
852    if (IsFlushingState(audio ? mFlushingAudio : mFlushingVideo)) {
853        // We're currently attempting to flush the decoder, in order
854        // to complete this, the decoder wants all its buffers back,
855        // so we don't want any output buffers it sent us (from before
856        // we initiated the flush) to be stuck in the renderer's queue.
857
858        ALOGV("we're still flushing the %s decoder, sending its output buffer"
859             " right back.", audio ? "audio" : "video");
860
861        reply->post();
862        return;
863    }
864
865    sp<ABuffer> buffer;
866    CHECK(msg->findBuffer("buffer", &buffer));
867
868    int64_t &skipUntilMediaTimeUs =
869        audio
870            ? mSkipRenderingAudioUntilMediaTimeUs
871            : mSkipRenderingVideoUntilMediaTimeUs;
872
873    if (skipUntilMediaTimeUs >= 0) {
874        int64_t mediaTimeUs;
875        CHECK(buffer->meta()->findInt64("timeUs", &mediaTimeUs));
876
877        if (mediaTimeUs < skipUntilMediaTimeUs) {
878            ALOGV("dropping %s buffer at time %lld as requested.",
879                 audio ? "audio" : "video",
880                 mediaTimeUs);
881
882            reply->post();
883            return;
884        }
885
886        skipUntilMediaTimeUs = -1;
887    }
888
889    mRenderer->queueBuffer(audio, buffer, reply);
890}
891
892void NuPlayer::notifyListener(int msg, int ext1, int ext2) {
893    if (mDriver == NULL) {
894        return;
895    }
896
897    sp<NuPlayerDriver> driver = mDriver.promote();
898
899    if (driver == NULL) {
900        return;
901    }
902
903    driver->notifyListener(msg, ext1, ext2);
904}
905
906void NuPlayer::flushDecoder(bool audio, bool needShutdown) {
907    if ((audio && mAudioDecoder == NULL) || (!audio && mVideoDecoder == NULL)) {
908        ALOGI("flushDecoder %s without decoder present",
909             audio ? "audio" : "video");
910    }
911
912    // Make sure we don't continue to scan sources until we finish flushing.
913    ++mScanSourcesGeneration;
914    mScanSourcesPending = false;
915
916    (audio ? mAudioDecoder : mVideoDecoder)->signalFlush();
917    mRenderer->flush(audio);
918
919    FlushStatus newStatus =
920        needShutdown ? FLUSHING_DECODER_SHUTDOWN : FLUSHING_DECODER;
921
922    if (audio) {
923        CHECK(mFlushingAudio == NONE
924                || mFlushingAudio == AWAITING_DISCONTINUITY);
925
926        mFlushingAudio = newStatus;
927
928        if (mFlushingVideo == NONE) {
929            mFlushingVideo = (mVideoDecoder != NULL)
930                ? AWAITING_DISCONTINUITY
931                : FLUSHED;
932        }
933    } else {
934        CHECK(mFlushingVideo == NONE
935                || mFlushingVideo == AWAITING_DISCONTINUITY);
936
937        mFlushingVideo = newStatus;
938
939        if (mFlushingAudio == NONE) {
940            mFlushingAudio = (mAudioDecoder != NULL)
941                ? AWAITING_DISCONTINUITY
942                : FLUSHED;
943        }
944    }
945}
946
947sp<AMessage> NuPlayer::Source::getFormat(bool audio) {
948    sp<MetaData> meta = getFormatMeta(audio);
949
950    if (meta == NULL) {
951        return NULL;
952    }
953
954    sp<AMessage> msg = new AMessage;
955
956    if(convertMetaDataToMessage(meta, &msg) == OK) {
957        return msg;
958    }
959    return NULL;
960}
961
962status_t NuPlayer::setVideoScalingMode(int32_t mode) {
963    mVideoScalingMode = mode;
964    if (mNativeWindow != NULL) {
965        status_t ret = native_window_set_scaling_mode(
966                mNativeWindow->getNativeWindow().get(), mVideoScalingMode);
967        if (ret != OK) {
968            ALOGE("Failed to set scaling mode (%d): %s",
969                -ret, strerror(-ret));
970            return ret;
971        }
972    }
973    return OK;
974}
975
976}  // namespace android
977