NuPlayerDriver.cpp revision 1061c9c29cfdeb3b2a307a4ee4cda2cd197b48e6 
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 "NuPlayerDriver"
19#include <inttypes.h>
20#include <utils/Log.h>
21
22#include "NuPlayerDriver.h"
23
24#include "NuPlayer.h"
25#include "NuPlayerSource.h"
26
27#include <media/stagefright/foundation/ADebug.h>
28#include <media/stagefright/foundation/ALooper.h>
29#include <media/stagefright/foundation/AUtils.h>
30#include <media/stagefright/MetaData.h>
31#include <media/stagefright/Utils.h>
32
33namespace android {
34
35NuPlayerDriver::NuPlayerDriver()
36    : mState(STATE_IDLE),
37      mIsAsyncPrepare(false),
38      mAsyncResult(UNKNOWN_ERROR),
39      mSetSurfaceInProgress(false),
40      mDurationUs(-1),
41      mPositionUs(-1),
42      mSeekInProgress(false),
43      mLooper(new ALooper),
44      mPlayerFlags(0),
45      mAtEOS(false),
46      mLooping(false),
47      mAutoLoop(false),
48      mStartupSeekTimeUs(-1) {
49    ALOGV("NuPlayerDriver(%p)", this);
50    mLooper->setName("NuPlayerDriver Looper");
51
52    mLooper->start(
53            false, /* runOnCallingThread */
54            true,  /* canCallJava */
55            PRIORITY_AUDIO);
56
57    mPlayer = new NuPlayer;
58    mLooper->registerHandler(mPlayer);
59
60    mPlayer->setDriver(this);
61}
62
63NuPlayerDriver::~NuPlayerDriver() {
64    ALOGV("~NuPlayerDriver(%p)", this);
65    mLooper->stop();
66}
67
68status_t NuPlayerDriver::initCheck() {
69    return OK;
70}
71
72status_t NuPlayerDriver::setUID(uid_t uid) {
73    mPlayer->setUID(uid);
74
75    return OK;
76}
77
78status_t NuPlayerDriver::setDataSource(
79        const sp<IMediaHTTPService> &httpService,
80        const char *url,
81        const KeyedVector<String8, String8> *headers) {
82    ALOGV("setDataSource(%p) url(%s)", this, uriDebugString(url, false).c_str());
83    Mutex::Autolock autoLock(mLock);
84
85    if (mState != STATE_IDLE) {
86        return INVALID_OPERATION;
87    }
88
89    mState = STATE_SET_DATASOURCE_PENDING;
90
91    mPlayer->setDataSourceAsync(httpService, url, headers);
92
93    while (mState == STATE_SET_DATASOURCE_PENDING) {
94        mCondition.wait(mLock);
95    }
96
97    return mAsyncResult;
98}
99
100status_t NuPlayerDriver::setDataSource(int fd, int64_t offset, int64_t length) {
101    ALOGV("setDataSource(%p) file(%d)", this, fd);
102    Mutex::Autolock autoLock(mLock);
103
104    if (mState != STATE_IDLE) {
105        return INVALID_OPERATION;
106    }
107
108    mState = STATE_SET_DATASOURCE_PENDING;
109
110    mPlayer->setDataSourceAsync(fd, offset, length);
111
112    while (mState == STATE_SET_DATASOURCE_PENDING) {
113        mCondition.wait(mLock);
114    }
115
116    return mAsyncResult;
117}
118
119status_t NuPlayerDriver::setDataSource(const sp<IStreamSource> &source) {
120    ALOGV("setDataSource(%p) stream source", this);
121    Mutex::Autolock autoLock(mLock);
122
123    if (mState != STATE_IDLE) {
124        return INVALID_OPERATION;
125    }
126
127    mState = STATE_SET_DATASOURCE_PENDING;
128
129    mPlayer->setDataSourceAsync(source);
130
131    while (mState == STATE_SET_DATASOURCE_PENDING) {
132        mCondition.wait(mLock);
133    }
134
135    return mAsyncResult;
136}
137
138status_t NuPlayerDriver::setDataSource(const sp<DataSource> &source) {
139    ALOGV("setDataSource(%p) callback source", this);
140    Mutex::Autolock autoLock(mLock);
141
142    if (mState != STATE_IDLE) {
143        return INVALID_OPERATION;
144    }
145
146    mState = STATE_SET_DATASOURCE_PENDING;
147
148    mPlayer->setDataSourceAsync(source);
149
150    while (mState == STATE_SET_DATASOURCE_PENDING) {
151        mCondition.wait(mLock);
152    }
153
154    return mAsyncResult;
155}
156
157status_t NuPlayerDriver::setVideoSurfaceTexture(
158        const sp<IGraphicBufferProducer> &bufferProducer) {
159    ALOGV("setVideoSurfaceTexture(%p)", this);
160    Mutex::Autolock autoLock(mLock);
161
162    if (mSetSurfaceInProgress) {
163        return INVALID_OPERATION;
164    }
165
166    switch (mState) {
167        case STATE_SET_DATASOURCE_PENDING:
168        case STATE_RESET_IN_PROGRESS:
169            return INVALID_OPERATION;
170
171        default:
172            break;
173    }
174
175    mSetSurfaceInProgress = true;
176
177    mPlayer->setVideoSurfaceTextureAsync(bufferProducer);
178
179    while (mSetSurfaceInProgress) {
180        mCondition.wait(mLock);
181    }
182
183    return OK;
184}
185
186status_t NuPlayerDriver::prepare() {
187    ALOGV("prepare(%p)", this);
188    Mutex::Autolock autoLock(mLock);
189    return prepare_l();
190}
191
192status_t NuPlayerDriver::prepare_l() {
193    switch (mState) {
194        case STATE_UNPREPARED:
195            mState = STATE_PREPARING;
196
197            // Make sure we're not posting any notifications, success or
198            // failure information is only communicated through our result
199            // code.
200            mIsAsyncPrepare = false;
201            mPlayer->prepareAsync();
202            while (mState == STATE_PREPARING) {
203                mCondition.wait(mLock);
204            }
205            return (mState == STATE_PREPARED) ? OK : UNKNOWN_ERROR;
206        case STATE_STOPPED:
207            // this is really just paused. handle as seek to start
208            mAtEOS = false;
209            mState = STATE_STOPPED_AND_PREPARING;
210            mIsAsyncPrepare = false;
211            mPlayer->seekToAsync(0, true /* needNotify */);
212            while (mState == STATE_STOPPED_AND_PREPARING) {
213                mCondition.wait(mLock);
214            }
215            return (mState == STATE_STOPPED_AND_PREPARED) ? OK : UNKNOWN_ERROR;
216        default:
217            return INVALID_OPERATION;
218    };
219}
220
221status_t NuPlayerDriver::prepareAsync() {
222    ALOGV("prepareAsync(%p)", this);
223    Mutex::Autolock autoLock(mLock);
224
225    switch (mState) {
226        case STATE_UNPREPARED:
227            mState = STATE_PREPARING;
228            mIsAsyncPrepare = true;
229            mPlayer->prepareAsync();
230            return OK;
231        case STATE_STOPPED:
232            // this is really just paused. handle as seek to start
233            mAtEOS = false;
234            mState = STATE_STOPPED_AND_PREPARING;
235            mIsAsyncPrepare = true;
236            mPlayer->seekToAsync(0, true /* needNotify */);
237            return OK;
238        default:
239            return INVALID_OPERATION;
240    };
241}
242
243status_t NuPlayerDriver::start() {
244    ALOGD("start(%p)", this);
245    Mutex::Autolock autoLock(mLock);
246
247    switch (mState) {
248        case STATE_UNPREPARED:
249        {
250            status_t err = prepare_l();
251
252            if (err != OK) {
253                return err;
254            }
255
256            CHECK_EQ(mState, STATE_PREPARED);
257
258            // fall through
259        }
260
261        case STATE_PAUSED:
262        case STATE_STOPPED_AND_PREPARED:
263        {
264            if (mAtEOS && mStartupSeekTimeUs < 0) {
265                mStartupSeekTimeUs = 0;
266                mPositionUs = -1;
267            }
268
269            // fall through
270        }
271
272        case STATE_PREPARED:
273        {
274            mAtEOS = false;
275            mPlayer->start();
276
277            if (mStartupSeekTimeUs >= 0) {
278                mPlayer->seekToAsync(mStartupSeekTimeUs);
279                mStartupSeekTimeUs = -1;
280            }
281            break;
282        }
283
284        case STATE_RUNNING:
285        {
286            if (mAtEOS) {
287                mPlayer->seekToAsync(0);
288                mAtEOS = false;
289                mPositionUs = -1;
290            }
291            break;
292        }
293
294        default:
295            return INVALID_OPERATION;
296    }
297
298    mState = STATE_RUNNING;
299
300    return OK;
301}
302
303status_t NuPlayerDriver::stop() {
304    ALOGD("stop(%p)", this);
305    Mutex::Autolock autoLock(mLock);
306
307    switch (mState) {
308        case STATE_RUNNING:
309            mPlayer->pause();
310            // fall through
311
312        case STATE_PAUSED:
313            mState = STATE_STOPPED;
314            notifyListener_l(MEDIA_STOPPED);
315            break;
316
317        case STATE_PREPARED:
318        case STATE_STOPPED:
319        case STATE_STOPPED_AND_PREPARING:
320        case STATE_STOPPED_AND_PREPARED:
321            mState = STATE_STOPPED;
322            break;
323
324        default:
325            return INVALID_OPERATION;
326    }
327
328    return OK;
329}
330
331status_t NuPlayerDriver::pause() {
332    // The NuPlayerRenderer may get flushed if pause for long enough, e.g. the pause timeout tear
333    // down for audio offload mode. If that happens, the NuPlayerRenderer will no longer know the
334    // current position. So similar to seekTo, update |mPositionUs| to the pause position by calling
335    // getCurrentPosition here.
336    int msec;
337    getCurrentPosition(&msec);
338
339    Mutex::Autolock autoLock(mLock);
340
341    switch (mState) {
342        case STATE_PAUSED:
343        case STATE_PREPARED:
344            return OK;
345
346        case STATE_RUNNING:
347            mState = STATE_PAUSED;
348            notifyListener_l(MEDIA_PAUSED);
349            mPlayer->pause();
350            break;
351
352        default:
353            return INVALID_OPERATION;
354    }
355
356    return OK;
357}
358
359bool NuPlayerDriver::isPlaying() {
360    return mState == STATE_RUNNING && !mAtEOS;
361}
362
363status_t NuPlayerDriver::setPlaybackSettings(const AudioPlaybackRate &rate) {
364    Mutex::Autolock autoLock(mLock);
365    status_t err = mPlayer->setPlaybackSettings(rate);
366    if (err == OK) {
367        if (rate.mSpeed == 0.f && mState == STATE_RUNNING) {
368            mState = STATE_PAUSED;
369            // try to update position
370            (void)mPlayer->getCurrentPosition(&mPositionUs);
371            notifyListener_l(MEDIA_PAUSED);
372        } else if (rate.mSpeed != 0.f && mState == STATE_PAUSED) {
373            mState = STATE_RUNNING;
374        }
375    }
376    return err;
377}
378
379status_t NuPlayerDriver::getPlaybackSettings(AudioPlaybackRate *rate) {
380    return mPlayer->getPlaybackSettings(rate);
381}
382
383status_t NuPlayerDriver::setSyncSettings(const AVSyncSettings &sync, float videoFpsHint) {
384    return mPlayer->setSyncSettings(sync, videoFpsHint);
385}
386
387status_t NuPlayerDriver::getSyncSettings(AVSyncSettings *sync, float *videoFps) {
388    return mPlayer->getSyncSettings(sync, videoFps);
389}
390
391status_t NuPlayerDriver::seekTo(int msec) {
392    ALOGD("seekTo(%p) %d ms", this, msec);
393    Mutex::Autolock autoLock(mLock);
394
395    int64_t seekTimeUs = msec * 1000ll;
396
397    switch (mState) {
398        case STATE_PREPARED:
399        case STATE_STOPPED_AND_PREPARED:
400        case STATE_PAUSED:
401            mStartupSeekTimeUs = seekTimeUs;
402            // fall through.
403        case STATE_RUNNING:
404        {
405            mAtEOS = false;
406            mSeekInProgress = true;
407            // seeks can take a while, so we essentially paused
408            notifyListener_l(MEDIA_PAUSED);
409            mPlayer->seekToAsync(seekTimeUs, true /* needNotify */);
410            break;
411        }
412
413        default:
414            return INVALID_OPERATION;
415    }
416
417    mPositionUs = seekTimeUs;
418    return OK;
419}
420
421status_t NuPlayerDriver::getCurrentPosition(int *msec) {
422    int64_t tempUs = 0;
423    {
424        Mutex::Autolock autoLock(mLock);
425        if (mSeekInProgress || mState == STATE_PAUSED) {
426            tempUs = (mPositionUs <= 0) ? 0 : mPositionUs;
427            *msec = (int)divRound(tempUs, (int64_t)(1000));
428            return OK;
429        }
430    }
431
432    status_t ret = mPlayer->getCurrentPosition(&tempUs);
433
434    Mutex::Autolock autoLock(mLock);
435    // We need to check mSeekInProgress here because mPlayer->seekToAsync is an async call, which
436    // means getCurrentPosition can be called before seek is completed. Iow, renderer may return a
437    // position value that's different the seek to position.
438    if (ret != OK) {
439        tempUs = (mPositionUs <= 0) ? 0 : mPositionUs;
440    } else {
441        mPositionUs = tempUs;
442    }
443    *msec = (int)divRound(tempUs, (int64_t)(1000));
444    return OK;
445}
446
447status_t NuPlayerDriver::getDuration(int *msec) {
448    Mutex::Autolock autoLock(mLock);
449
450    if (mDurationUs < 0) {
451        return UNKNOWN_ERROR;
452    }
453
454    *msec = (mDurationUs + 500ll) / 1000;
455
456    return OK;
457}
458
459status_t NuPlayerDriver::reset() {
460    ALOGD("reset(%p)", this);
461    Mutex::Autolock autoLock(mLock);
462
463    switch (mState) {
464        case STATE_IDLE:
465            return OK;
466
467        case STATE_SET_DATASOURCE_PENDING:
468        case STATE_RESET_IN_PROGRESS:
469            return INVALID_OPERATION;
470
471        case STATE_PREPARING:
472        {
473            CHECK(mIsAsyncPrepare);
474
475            notifyListener_l(MEDIA_PREPARED);
476            break;
477        }
478
479        default:
480            break;
481    }
482
483    if (mState != STATE_STOPPED) {
484        notifyListener_l(MEDIA_STOPPED);
485    }
486
487    mState = STATE_RESET_IN_PROGRESS;
488    mPlayer->resetAsync();
489
490    while (mState == STATE_RESET_IN_PROGRESS) {
491        mCondition.wait(mLock);
492    }
493
494    mDurationUs = -1;
495    mPositionUs = -1;
496    mStartupSeekTimeUs = -1;
497    mLooping = false;
498
499    return OK;
500}
501
502status_t NuPlayerDriver::setLooping(int loop) {
503    mLooping = loop != 0;
504    return OK;
505}
506
507player_type NuPlayerDriver::playerType() {
508    return NU_PLAYER;
509}
510
511status_t NuPlayerDriver::invoke(const Parcel &request, Parcel *reply) {
512    if (reply == NULL) {
513        ALOGE("reply is a NULL pointer");
514        return BAD_VALUE;
515    }
516
517    int32_t methodId;
518    status_t ret = request.readInt32(&methodId);
519    if (ret != OK) {
520        ALOGE("Failed to retrieve the requested method to invoke");
521        return ret;
522    }
523
524    switch (methodId) {
525        case INVOKE_ID_SET_VIDEO_SCALING_MODE:
526        {
527            int mode = request.readInt32();
528            return mPlayer->setVideoScalingMode(mode);
529        }
530
531        case INVOKE_ID_GET_TRACK_INFO:
532        {
533            return mPlayer->getTrackInfo(reply);
534        }
535
536        case INVOKE_ID_SELECT_TRACK:
537        {
538            int trackIndex = request.readInt32();
539            int msec = 0;
540            // getCurrentPosition should always return OK
541            getCurrentPosition(&msec);
542            return mPlayer->selectTrack(trackIndex, true /* select */, msec * 1000ll);
543        }
544
545        case INVOKE_ID_UNSELECT_TRACK:
546        {
547            int trackIndex = request.readInt32();
548            return mPlayer->selectTrack(trackIndex, false /* select */, 0xdeadbeef /* not used */);
549        }
550
551        case INVOKE_ID_GET_SELECTED_TRACK:
552        {
553            int32_t type = request.readInt32();
554            return mPlayer->getSelectedTrack(type, reply);
555        }
556
557        default:
558        {
559            return INVALID_OPERATION;
560        }
561    }
562}
563
564void NuPlayerDriver::setAudioSink(const sp<AudioSink> &audioSink) {
565    mPlayer->setAudioSink(audioSink);
566    mAudioSink = audioSink;
567}
568
569status_t NuPlayerDriver::setParameter(
570        int /* key */, const Parcel & /* request */) {
571    return INVALID_OPERATION;
572}
573
574status_t NuPlayerDriver::getParameter(int /* key */, Parcel * /* reply */) {
575    return INVALID_OPERATION;
576}
577
578status_t NuPlayerDriver::getMetadata(
579        const media::Metadata::Filter& /* ids */, Parcel *records) {
580    Mutex::Autolock autoLock(mLock);
581
582    using media::Metadata;
583
584    Metadata meta(records);
585
586    meta.appendBool(
587            Metadata::kPauseAvailable,
588            mPlayerFlags & NuPlayer::Source::FLAG_CAN_PAUSE);
589
590    meta.appendBool(
591            Metadata::kSeekBackwardAvailable,
592            mPlayerFlags & NuPlayer::Source::FLAG_CAN_SEEK_BACKWARD);
593
594    meta.appendBool(
595            Metadata::kSeekForwardAvailable,
596            mPlayerFlags & NuPlayer::Source::FLAG_CAN_SEEK_FORWARD);
597
598    meta.appendBool(
599            Metadata::kSeekAvailable,
600            mPlayerFlags & NuPlayer::Source::FLAG_CAN_SEEK);
601
602    return OK;
603}
604
605void NuPlayerDriver::notifyResetComplete() {
606    ALOGD("notifyResetComplete(%p)", this);
607    Mutex::Autolock autoLock(mLock);
608
609    CHECK_EQ(mState, STATE_RESET_IN_PROGRESS);
610    mState = STATE_IDLE;
611    mCondition.broadcast();
612}
613
614void NuPlayerDriver::notifySetSurfaceComplete() {
615    ALOGV("notifySetSurfaceComplete(%p)", this);
616    Mutex::Autolock autoLock(mLock);
617
618    CHECK(mSetSurfaceInProgress);
619    mSetSurfaceInProgress = false;
620
621    mCondition.broadcast();
622}
623
624void NuPlayerDriver::notifyDuration(int64_t durationUs) {
625    Mutex::Autolock autoLock(mLock);
626    mDurationUs = durationUs;
627}
628
629void NuPlayerDriver::notifySeekComplete() {
630    ALOGV("notifySeekComplete(%p)", this);
631    Mutex::Autolock autoLock(mLock);
632    mSeekInProgress = false;
633    notifySeekComplete_l();
634}
635
636void NuPlayerDriver::notifySeekComplete_l() {
637    bool wasSeeking = true;
638    if (mState == STATE_STOPPED_AND_PREPARING) {
639        wasSeeking = false;
640        mState = STATE_STOPPED_AND_PREPARED;
641        mCondition.broadcast();
642        if (!mIsAsyncPrepare) {
643            // if we are preparing synchronously, no need to notify listener
644            return;
645        }
646    } else if (mState == STATE_STOPPED) {
647        // no need to notify listener
648        return;
649    }
650    notifyListener_l(wasSeeking ? MEDIA_SEEK_COMPLETE : MEDIA_PREPARED);
651}
652
653status_t NuPlayerDriver::dump(
654        int fd, const Vector<String16> & /* args */) const {
655    int64_t numFramesTotal;
656    int64_t numFramesDropped;
657    mPlayer->getStats(&numFramesTotal, &numFramesDropped);
658
659    FILE *out = fdopen(dup(fd), "w");
660
661    fprintf(out, " NuPlayer\n");
662    fprintf(out, "  numFramesTotal(%" PRId64 "), numFramesDropped(%" PRId64 "), "
663                 "percentageDropped(%.2f)\n",
664                 numFramesTotal,
665                 numFramesDropped,
666                 numFramesTotal == 0
667                    ? 0.0 : (double)numFramesDropped / numFramesTotal);
668
669    fclose(out);
670    out = NULL;
671
672    return OK;
673}
674
675void NuPlayerDriver::notifyListener(
676        int msg, int ext1, int ext2, const Parcel *in) {
677    Mutex::Autolock autoLock(mLock);
678    notifyListener_l(msg, ext1, ext2, in);
679}
680
681void NuPlayerDriver::notifyListener_l(
682        int msg, int ext1, int ext2, const Parcel *in) {
683    switch (msg) {
684        case MEDIA_PLAYBACK_COMPLETE:
685        {
686            if (mState != STATE_RESET_IN_PROGRESS) {
687                if (mAutoLoop) {
688                    audio_stream_type_t streamType = AUDIO_STREAM_MUSIC;
689                    if (mAudioSink != NULL) {
690                        streamType = mAudioSink->getAudioStreamType();
691                    }
692                    if (streamType == AUDIO_STREAM_NOTIFICATION) {
693                        ALOGW("disabling auto-loop for notification");
694                        mAutoLoop = false;
695                    }
696                }
697                if (mLooping || mAutoLoop) {
698                    mPlayer->seekToAsync(0);
699                    if (mAudioSink != NULL) {
700                        // The renderer has stopped the sink at the end in order to play out
701                        // the last little bit of audio. If we're looping, we need to restart it.
702                        mAudioSink->start();
703                    }
704                    break;
705                }
706
707                mPlayer->pause();
708                mState = STATE_PAUSED;
709            }
710            // fall through
711        }
712
713        case MEDIA_ERROR:
714        {
715            mAtEOS = true;
716            break;
717        }
718
719        default:
720            break;
721    }
722
723    mLock.unlock();
724    sendEvent(msg, ext1, ext2, in);
725    mLock.lock();
726}
727
728void NuPlayerDriver::notifySetDataSourceCompleted(status_t err) {
729    Mutex::Autolock autoLock(mLock);
730
731    CHECK_EQ(mState, STATE_SET_DATASOURCE_PENDING);
732
733    mAsyncResult = err;
734    mState = (err == OK) ? STATE_UNPREPARED : STATE_IDLE;
735    mCondition.broadcast();
736}
737
738void NuPlayerDriver::notifyPrepareCompleted(status_t err) {
739    Mutex::Autolock autoLock(mLock);
740
741    if (mState != STATE_PREPARING) {
742        // We were preparing asynchronously when the client called
743        // reset(), we sent a premature "prepared" notification and
744        // then initiated the reset. This notification is stale.
745        CHECK(mState == STATE_RESET_IN_PROGRESS || mState == STATE_IDLE);
746        return;
747    }
748
749    CHECK_EQ(mState, STATE_PREPARING);
750
751    mAsyncResult = err;
752
753    if (err == OK) {
754        // update state before notifying client, so that if client calls back into NuPlayerDriver
755        // in response, NuPlayerDriver has the right state
756        mState = STATE_PREPARED;
757        if (mIsAsyncPrepare) {
758            notifyListener_l(MEDIA_PREPARED);
759        }
760    } else {
761        mState = STATE_UNPREPARED;
762        if (mIsAsyncPrepare) {
763            notifyListener_l(MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, err);
764        }
765    }
766
767    sp<MetaData> meta = mPlayer->getFileMeta();
768    int32_t loop;
769    if (meta != NULL
770            && meta->findInt32(kKeyAutoLoop, &loop) && loop != 0) {
771        mAutoLoop = true;
772    }
773
774    mCondition.broadcast();
775}
776
777void NuPlayerDriver::notifyFlagsChanged(uint32_t flags) {
778    Mutex::Autolock autoLock(mLock);
779
780    mPlayerFlags = flags;
781}
782
783}  // namespace android
784