NuPlayer.cpp revision 09359d4e7b9186eec9ce744257a8d1dcb6cbbf15 
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                int32_t audio;
513                CHECK(msg->findInt32("audio", &audio));
514
515                ALOGV("renderer %s flush completed.", audio ? "audio" : "video");
516            } else if (what == Renderer::kWhatVideoRenderingStart) {
517                notifyListener(MEDIA_INFO, MEDIA_INFO_RENDERING_START, 0);
518            }
519            break;
520        }
521
522        case kWhatMoreDataQueued:
523        {
524            break;
525        }
526
527        case kWhatReset:
528        {
529            ALOGV("kWhatReset");
530
531            if (mRenderer != NULL) {
532                // There's an edge case where the renderer owns all output
533                // buffers and is paused, therefore the decoder will not read
534                // more input data and will never encounter the matching
535                // discontinuity. To avoid this, we resume the renderer.
536
537                if (mFlushingAudio == AWAITING_DISCONTINUITY
538                        || mFlushingVideo == AWAITING_DISCONTINUITY) {
539                    mRenderer->resume();
540                }
541            }
542
543            if (mFlushingAudio != NONE || mFlushingVideo != NONE) {
544                // We're currently flushing, postpone the reset until that's
545                // completed.
546
547                ALOGV("postponing reset mFlushingAudio=%d, mFlushingVideo=%d",
548                      mFlushingAudio, mFlushingVideo);
549
550                mResetPostponed = true;
551                break;
552            }
553
554            if (mAudioDecoder == NULL && mVideoDecoder == NULL) {
555                finishReset();
556                break;
557            }
558
559            mTimeDiscontinuityPending = true;
560
561            if (mAudioDecoder != NULL) {
562                flushDecoder(true /* audio */, true /* needShutdown */);
563            }
564
565            if (mVideoDecoder != NULL) {
566                flushDecoder(false /* audio */, true /* needShutdown */);
567            }
568
569            mResetInProgress = true;
570            break;
571        }
572
573        case kWhatSeek:
574        {
575            int64_t seekTimeUs;
576            CHECK(msg->findInt64("seekTimeUs", &seekTimeUs));
577
578            ALOGV("kWhatSeek seekTimeUs=%lld us (%.2f secs)",
579                 seekTimeUs, seekTimeUs / 1E6);
580
581            mSource->seekTo(seekTimeUs);
582
583            if (mDriver != NULL) {
584                sp<NuPlayerDriver> driver = mDriver.promote();
585                if (driver != NULL) {
586                    driver->notifySeekComplete();
587                }
588            }
589
590            break;
591        }
592
593        case kWhatPause:
594        {
595            CHECK(mRenderer != NULL);
596            mRenderer->pause();
597            break;
598        }
599
600        case kWhatResume:
601        {
602            CHECK(mRenderer != NULL);
603            mRenderer->resume();
604            break;
605        }
606
607        default:
608            TRESPASS();
609            break;
610    }
611}
612
613void NuPlayer::finishFlushIfPossible() {
614    if (mFlushingAudio != FLUSHED && mFlushingAudio != SHUT_DOWN) {
615        return;
616    }
617
618    if (mFlushingVideo != FLUSHED && mFlushingVideo != SHUT_DOWN) {
619        return;
620    }
621
622    ALOGV("both audio and video are flushed now.");
623
624    if (mTimeDiscontinuityPending) {
625        mRenderer->signalTimeDiscontinuity();
626        mTimeDiscontinuityPending = false;
627    }
628
629    if (mAudioDecoder != NULL) {
630        mAudioDecoder->signalResume();
631    }
632
633    if (mVideoDecoder != NULL) {
634        mVideoDecoder->signalResume();
635    }
636
637    mFlushingAudio = NONE;
638    mFlushingVideo = NONE;
639
640    if (mResetInProgress) {
641        ALOGV("reset completed");
642
643        mResetInProgress = false;
644        finishReset();
645    } else if (mResetPostponed) {
646        (new AMessage(kWhatReset, id()))->post();
647        mResetPostponed = false;
648    } else if (mAudioDecoder == NULL || mVideoDecoder == NULL) {
649        postScanSources();
650    }
651}
652
653void NuPlayer::finishReset() {
654    CHECK(mAudioDecoder == NULL);
655    CHECK(mVideoDecoder == NULL);
656
657    ++mScanSourcesGeneration;
658    mScanSourcesPending = false;
659
660    mRenderer.clear();
661
662    if (mSource != NULL) {
663        mSource->stop();
664        mSource.clear();
665    }
666
667    if (mDriver != NULL) {
668        sp<NuPlayerDriver> driver = mDriver.promote();
669        if (driver != NULL) {
670            driver->notifyResetComplete();
671        }
672    }
673}
674
675void NuPlayer::postScanSources() {
676    if (mScanSourcesPending) {
677        return;
678    }
679
680    sp<AMessage> msg = new AMessage(kWhatScanSources, id());
681    msg->setInt32("generation", mScanSourcesGeneration);
682    msg->post();
683
684    mScanSourcesPending = true;
685}
686
687status_t NuPlayer::instantiateDecoder(bool audio, sp<Decoder> *decoder) {
688    if (*decoder != NULL) {
689        return OK;
690    }
691
692    sp<AMessage> format = mSource->getFormat(audio);
693
694    if (format == NULL) {
695        return -EWOULDBLOCK;
696    }
697
698    if (!audio) {
699        AString mime;
700        CHECK(format->findString("mime", &mime));
701        mVideoIsAVC = !strcasecmp(MEDIA_MIMETYPE_VIDEO_AVC, mime.c_str());
702    }
703
704    sp<AMessage> notify =
705        new AMessage(audio ? kWhatAudioNotify : kWhatVideoNotify,
706                     id());
707
708    *decoder = audio ? new Decoder(notify) :
709                       new Decoder(notify, mNativeWindow);
710    looper()->registerHandler(*decoder);
711
712    (*decoder)->configure(format);
713
714    int64_t durationUs;
715    if (mDriver != NULL && mSource->getDuration(&durationUs) == OK) {
716        sp<NuPlayerDriver> driver = mDriver.promote();
717        if (driver != NULL) {
718            driver->notifyDuration(durationUs);
719        }
720    }
721
722    return OK;
723}
724
725status_t NuPlayer::feedDecoderInputData(bool audio, const sp<AMessage> &msg) {
726    sp<AMessage> reply;
727    CHECK(msg->findMessage("reply", &reply));
728
729    if ((audio && IsFlushingState(mFlushingAudio))
730            || (!audio && IsFlushingState(mFlushingVideo))) {
731        reply->setInt32("err", INFO_DISCONTINUITY);
732        reply->post();
733        return OK;
734    }
735
736    sp<ABuffer> accessUnit;
737
738    bool dropAccessUnit;
739    do {
740        status_t err = mSource->dequeueAccessUnit(audio, &accessUnit);
741
742        if (err == -EWOULDBLOCK) {
743            return err;
744        } else if (err != OK) {
745            if (err == INFO_DISCONTINUITY) {
746                int32_t type;
747                CHECK(accessUnit->meta()->findInt32("discontinuity", &type));
748
749                bool formatChange =
750                    (audio &&
751                     (type & ATSParser::DISCONTINUITY_AUDIO_FORMAT))
752                    || (!audio &&
753                            (type & ATSParser::DISCONTINUITY_VIDEO_FORMAT));
754
755                bool timeChange = (type & ATSParser::DISCONTINUITY_TIME) != 0;
756
757                ALOGI("%s discontinuity (formatChange=%d, time=%d)",
758                     audio ? "audio" : "video", formatChange, timeChange);
759
760                if (audio) {
761                    mSkipRenderingAudioUntilMediaTimeUs = -1;
762                } else {
763                    mSkipRenderingVideoUntilMediaTimeUs = -1;
764                }
765
766                if (timeChange) {
767                    sp<AMessage> extra;
768                    if (accessUnit->meta()->findMessage("extra", &extra)
769                            && extra != NULL) {
770                        int64_t resumeAtMediaTimeUs;
771                        if (extra->findInt64(
772                                    "resume-at-mediatimeUs", &resumeAtMediaTimeUs)) {
773                            ALOGI("suppressing rendering of %s until %lld us",
774                                    audio ? "audio" : "video", resumeAtMediaTimeUs);
775
776                            if (audio) {
777                                mSkipRenderingAudioUntilMediaTimeUs =
778                                    resumeAtMediaTimeUs;
779                            } else {
780                                mSkipRenderingVideoUntilMediaTimeUs =
781                                    resumeAtMediaTimeUs;
782                            }
783                        }
784                    }
785                }
786
787                mTimeDiscontinuityPending =
788                    mTimeDiscontinuityPending || timeChange;
789
790                if (formatChange || timeChange) {
791                    flushDecoder(audio, formatChange);
792                } else {
793                    // This stream is unaffected by the discontinuity
794
795                    if (audio) {
796                        mFlushingAudio = FLUSHED;
797                    } else {
798                        mFlushingVideo = FLUSHED;
799                    }
800
801                    finishFlushIfPossible();
802
803                    return -EWOULDBLOCK;
804                }
805            }
806
807            reply->setInt32("err", err);
808            reply->post();
809            return OK;
810        }
811
812        if (!audio) {
813            ++mNumFramesTotal;
814        }
815
816        dropAccessUnit = false;
817        if (!audio
818                && mVideoLateByUs > 100000ll
819                && mVideoIsAVC
820                && !IsAVCReferenceFrame(accessUnit)) {
821            dropAccessUnit = true;
822            ++mNumFramesDropped;
823        }
824    } while (dropAccessUnit);
825
826    // ALOGV("returned a valid buffer of %s data", audio ? "audio" : "video");
827
828#if 0
829    int64_t mediaTimeUs;
830    CHECK(accessUnit->meta()->findInt64("timeUs", &mediaTimeUs));
831    ALOGV("feeding %s input buffer at media time %.2f secs",
832         audio ? "audio" : "video",
833         mediaTimeUs / 1E6);
834#endif
835
836    reply->setBuffer("buffer", accessUnit);
837    reply->post();
838
839    return OK;
840}
841
842void NuPlayer::renderBuffer(bool audio, const sp<AMessage> &msg) {
843    // ALOGV("renderBuffer %s", audio ? "audio" : "video");
844
845    sp<AMessage> reply;
846    CHECK(msg->findMessage("reply", &reply));
847
848    if (IsFlushingState(audio ? mFlushingAudio : mFlushingVideo)) {
849        // We're currently attempting to flush the decoder, in order
850        // to complete this, the decoder wants all its buffers back,
851        // so we don't want any output buffers it sent us (from before
852        // we initiated the flush) to be stuck in the renderer's queue.
853
854        ALOGV("we're still flushing the %s decoder, sending its output buffer"
855             " right back.", audio ? "audio" : "video");
856
857        reply->post();
858        return;
859    }
860
861    sp<ABuffer> buffer;
862    CHECK(msg->findBuffer("buffer", &buffer));
863
864    int64_t &skipUntilMediaTimeUs =
865        audio
866            ? mSkipRenderingAudioUntilMediaTimeUs
867            : mSkipRenderingVideoUntilMediaTimeUs;
868
869    if (skipUntilMediaTimeUs >= 0) {
870        int64_t mediaTimeUs;
871        CHECK(buffer->meta()->findInt64("timeUs", &mediaTimeUs));
872
873        if (mediaTimeUs < skipUntilMediaTimeUs) {
874            ALOGV("dropping %s buffer at time %lld as requested.",
875                 audio ? "audio" : "video",
876                 mediaTimeUs);
877
878            reply->post();
879            return;
880        }
881
882        skipUntilMediaTimeUs = -1;
883    }
884
885    mRenderer->queueBuffer(audio, buffer, reply);
886}
887
888void NuPlayer::notifyListener(int msg, int ext1, int ext2) {
889    if (mDriver == NULL) {
890        return;
891    }
892
893    sp<NuPlayerDriver> driver = mDriver.promote();
894
895    if (driver == NULL) {
896        return;
897    }
898
899    driver->notifyListener(msg, ext1, ext2);
900}
901
902void NuPlayer::flushDecoder(bool audio, bool needShutdown) {
903    if ((audio && mAudioDecoder == NULL) || (!audio && mVideoDecoder == NULL)) {
904        ALOGI("flushDecoder %s without decoder present",
905             audio ? "audio" : "video");
906    }
907
908    // Make sure we don't continue to scan sources until we finish flushing.
909    ++mScanSourcesGeneration;
910    mScanSourcesPending = false;
911
912    (audio ? mAudioDecoder : mVideoDecoder)->signalFlush();
913    mRenderer->flush(audio);
914
915    FlushStatus newStatus =
916        needShutdown ? FLUSHING_DECODER_SHUTDOWN : FLUSHING_DECODER;
917
918    if (audio) {
919        CHECK(mFlushingAudio == NONE
920                || mFlushingAudio == AWAITING_DISCONTINUITY);
921
922        mFlushingAudio = newStatus;
923
924        if (mFlushingVideo == NONE) {
925            mFlushingVideo = (mVideoDecoder != NULL)
926                ? AWAITING_DISCONTINUITY
927                : FLUSHED;
928        }
929    } else {
930        CHECK(mFlushingVideo == NONE
931                || mFlushingVideo == AWAITING_DISCONTINUITY);
932
933        mFlushingVideo = newStatus;
934
935        if (mFlushingAudio == NONE) {
936            mFlushingAudio = (mAudioDecoder != NULL)
937                ? AWAITING_DISCONTINUITY
938                : FLUSHED;
939        }
940    }
941}
942
943sp<AMessage> NuPlayer::Source::getFormat(bool audio) {
944    sp<MetaData> meta = getFormatMeta(audio);
945
946    if (meta == NULL) {
947        return NULL;
948    }
949
950    sp<AMessage> msg = new AMessage;
951
952    if(convertMetaDataToMessage(meta, &msg) == OK) {
953        return msg;
954    }
955    return NULL;
956}
957
958}  // namespace android
959