NuPlayerDriver.cpp revision 13d6faa02087ce3bb0d4a02b8495f1822f211433 
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/MetaData.h>
30
31namespace android {
32
33NuPlayerDriver::NuPlayerDriver()
34    : mState(STATE_IDLE),
35      mIsAsyncPrepare(false),
36      mAsyncResult(UNKNOWN_ERROR),
37      mSetSurfaceInProgress(false),
38      mDurationUs(-1),
39      mPositionUs(-1),
40      mNotifyTimeRealUs(-1),
41      mPauseStartedTimeUs(-1),
42      mNumFramesTotal(0),
43      mNumFramesDropped(0),
44      mLooper(new ALooper),
45      mPlayerFlags(0),
46      mAtEOS(false),
47      mLooping(false),
48      mStartupSeekTimeUs(-1) {
49    mLooper->setName("NuPlayerDriver Looper");
50
51    mLooper->start(
52            false, /* runOnCallingThread */
53            true,  /* canCallJava */
54            PRIORITY_AUDIO);
55
56    mPlayer = new NuPlayer;
57    mLooper->registerHandler(mPlayer);
58
59    mPlayer->setDriver(this);
60}
61
62NuPlayerDriver::~NuPlayerDriver() {
63    mLooper->stop();
64}
65
66status_t NuPlayerDriver::initCheck() {
67    return OK;
68}
69
70status_t NuPlayerDriver::setUID(uid_t uid) {
71    mPlayer->setUID(uid);
72
73    return OK;
74}
75
76status_t NuPlayerDriver::setDataSource(
77        const sp<IMediaHTTPService> &httpService,
78        const char *url,
79        const KeyedVector<String8, String8> *headers) {
80    Mutex::Autolock autoLock(mLock);
81
82    ALOGV("setDataSource: url=%s", url);
83    if (mState != STATE_IDLE) {
84        return INVALID_OPERATION;
85    }
86
87    mState = STATE_SET_DATASOURCE_PENDING;
88
89    mPlayer->setDataSourceAsync(httpService, url, headers);
90
91    while (mState == STATE_SET_DATASOURCE_PENDING) {
92        mCondition.wait(mLock);
93    }
94
95    return mAsyncResult;
96}
97
98status_t NuPlayerDriver::setDataSource(int fd, int64_t offset, int64_t length) {
99    Mutex::Autolock autoLock(mLock);
100
101    ALOGV("setDataSource: fd=%d", fd);
102    if (mState != STATE_IDLE) {
103        return INVALID_OPERATION;
104    }
105
106    mState = STATE_SET_DATASOURCE_PENDING;
107
108    mPlayer->setDataSourceAsync(fd, offset, length);
109
110    while (mState == STATE_SET_DATASOURCE_PENDING) {
111        mCondition.wait(mLock);
112    }
113
114    return mAsyncResult;
115}
116
117status_t NuPlayerDriver::setDataSource(const sp<IStreamSource> &source) {
118    Mutex::Autolock autoLock(mLock);
119
120    ALOGV("setDataSource: stream source");
121    if (mState != STATE_IDLE) {
122        return INVALID_OPERATION;
123    }
124
125    mState = STATE_SET_DATASOURCE_PENDING;
126
127    mPlayer->setDataSourceAsync(source);
128
129    while (mState == STATE_SET_DATASOURCE_PENDING) {
130        mCondition.wait(mLock);
131    }
132
133    return mAsyncResult;
134}
135
136status_t NuPlayerDriver::setVideoSurfaceTexture(
137        const sp<IGraphicBufferProducer> &bufferProducer) {
138    Mutex::Autolock autoLock(mLock);
139
140    if (mSetSurfaceInProgress) {
141        return INVALID_OPERATION;
142    }
143
144    switch (mState) {
145        case STATE_SET_DATASOURCE_PENDING:
146        case STATE_RESET_IN_PROGRESS:
147            return INVALID_OPERATION;
148
149        default:
150            break;
151    }
152
153    mSetSurfaceInProgress = true;
154
155    mPlayer->setVideoSurfaceTextureAsync(bufferProducer);
156
157    while (mSetSurfaceInProgress) {
158        mCondition.wait(mLock);
159    }
160
161    return OK;
162}
163
164status_t NuPlayerDriver::prepare() {
165    Mutex::Autolock autoLock(mLock);
166    return prepare_l();
167}
168
169status_t NuPlayerDriver::prepare_l() {
170    switch (mState) {
171        case STATE_UNPREPARED:
172            mState = STATE_PREPARING;
173
174            // Make sure we're not posting any notifications, success or
175            // failure information is only communicated through our result
176            // code.
177            mIsAsyncPrepare = false;
178            mPlayer->prepareAsync();
179            while (mState == STATE_PREPARING) {
180                mCondition.wait(mLock);
181            }
182            return (mState == STATE_PREPARED) ? OK : UNKNOWN_ERROR;
183        case STATE_STOPPED:
184            // this is really just paused. handle as seek to start
185            mAtEOS = false;
186            mState = STATE_STOPPED_AND_PREPARING;
187            mIsAsyncPrepare = false;
188            mPlayer->seekToAsync(0);
189            while (mState == STATE_STOPPED_AND_PREPARING) {
190                mCondition.wait(mLock);
191            }
192            return (mState == STATE_STOPPED_AND_PREPARED) ? OK : UNKNOWN_ERROR;
193        default:
194            return INVALID_OPERATION;
195    };
196}
197
198status_t NuPlayerDriver::prepareAsync() {
199    Mutex::Autolock autoLock(mLock);
200
201    switch (mState) {
202        case STATE_UNPREPARED:
203            mState = STATE_PREPARING;
204            mIsAsyncPrepare = true;
205            mPlayer->prepareAsync();
206            return OK;
207        case STATE_STOPPED:
208            // this is really just paused. handle as seek to start
209            mAtEOS = false;
210            mState = STATE_STOPPED_AND_PREPARING;
211            mIsAsyncPrepare = true;
212            mPlayer->seekToAsync(0);
213            return OK;
214        default:
215            return INVALID_OPERATION;
216    };
217}
218
219status_t NuPlayerDriver::start() {
220    Mutex::Autolock autoLock(mLock);
221
222    switch (mState) {
223        case STATE_UNPREPARED:
224        {
225            status_t err = prepare_l();
226
227            if (err != OK) {
228                return err;
229            }
230
231            CHECK_EQ(mState, STATE_PREPARED);
232
233            // fall through
234        }
235
236        case STATE_PREPARED:
237        {
238            mAtEOS = false;
239            mPlayer->start();
240
241            if (mStartupSeekTimeUs >= 0) {
242                if (mStartupSeekTimeUs == 0) {
243                    notifySeekComplete_l();
244                } else {
245                    mPlayer->seekToAsync(mStartupSeekTimeUs);
246                }
247
248                mStartupSeekTimeUs = -1;
249            }
250            break;
251        }
252
253        case STATE_RUNNING:
254        {
255            if (mAtEOS) {
256                mPlayer->seekToAsync(0);
257                mAtEOS = false;
258                mPositionUs = -1;
259            }
260            break;
261        }
262
263        case STATE_PAUSED:
264        case STATE_STOPPED_AND_PREPARED:
265        {
266            mPlayer->resume();
267            mPositionUs -= ALooper::GetNowUs() - mPauseStartedTimeUs;
268            break;
269        }
270
271        default:
272            return INVALID_OPERATION;
273    }
274
275    mState = STATE_RUNNING;
276    mPauseStartedTimeUs = -1;
277
278    return OK;
279}
280
281status_t NuPlayerDriver::stop() {
282    Mutex::Autolock autoLock(mLock);
283
284    switch (mState) {
285        case STATE_RUNNING:
286            mPlayer->pause();
287            // fall through
288
289        case STATE_PAUSED:
290            notifyListener_l(MEDIA_STOPPED);
291            // fall through
292
293        case STATE_PREPARED:
294        case STATE_STOPPED:
295        case STATE_STOPPED_AND_PREPARING:
296        case STATE_STOPPED_AND_PREPARED:
297            mState = STATE_STOPPED;
298            break;
299
300        default:
301            return INVALID_OPERATION;
302    }
303    setPauseStartedTimeIfNeeded();
304
305    return OK;
306}
307
308status_t NuPlayerDriver::pause() {
309    Mutex::Autolock autoLock(mLock);
310
311    switch (mState) {
312        case STATE_PAUSED:
313        case STATE_PREPARED:
314            return OK;
315
316        case STATE_RUNNING:
317            notifyListener_l(MEDIA_PAUSED);
318            mPlayer->pause();
319            break;
320
321        default:
322            return INVALID_OPERATION;
323    }
324
325    setPauseStartedTimeIfNeeded();
326    mState = STATE_PAUSED;
327
328    return OK;
329}
330
331bool NuPlayerDriver::isPlaying() {
332    return mState == STATE_RUNNING && !mAtEOS;
333}
334
335status_t NuPlayerDriver::seekTo(int msec) {
336    Mutex::Autolock autoLock(mLock);
337
338    int64_t seekTimeUs = msec * 1000ll;
339
340    switch (mState) {
341        case STATE_PREPARED:
342        {
343            mStartupSeekTimeUs = seekTimeUs;
344            // pretend that the seek completed. It will actually happen when starting playback.
345            // TODO: actually perform the seek here, so the player is ready to go at the new
346            // location
347            notifySeekComplete_l();
348            break;
349        }
350
351        case STATE_RUNNING:
352        case STATE_PAUSED:
353        {
354            mAtEOS = false;
355            // seeks can take a while, so we essentially paused
356            notifyListener_l(MEDIA_PAUSED);
357            mPlayer->seekToAsync(seekTimeUs);
358            break;
359        }
360
361        default:
362            return INVALID_OPERATION;
363    }
364
365    mPositionUs = seekTimeUs;
366    mNotifyTimeRealUs = -1;
367    return OK;
368}
369
370status_t NuPlayerDriver::getCurrentPosition(int *msec) {
371    Mutex::Autolock autoLock(mLock);
372
373    if (mPositionUs < 0) {
374        *msec = 0;
375    } else if (mNotifyTimeRealUs == -1) {
376        *msec = mPositionUs / 1000;
377    } else {
378        int64_t nowUs =
379                (isPlaying() ?  ALooper::GetNowUs() : mPauseStartedTimeUs);
380        *msec = (mPositionUs + nowUs - mNotifyTimeRealUs + 500ll) / 1000;
381    }
382
383    return OK;
384}
385
386status_t NuPlayerDriver::getDuration(int *msec) {
387    Mutex::Autolock autoLock(mLock);
388
389    if (mDurationUs < 0) {
390        return UNKNOWN_ERROR;
391    }
392
393    *msec = (mDurationUs + 500ll) / 1000;
394
395    return OK;
396}
397
398status_t NuPlayerDriver::reset() {
399    Mutex::Autolock autoLock(mLock);
400
401    switch (mState) {
402        case STATE_IDLE:
403            return OK;
404
405        case STATE_SET_DATASOURCE_PENDING:
406        case STATE_RESET_IN_PROGRESS:
407            return INVALID_OPERATION;
408
409        case STATE_PREPARING:
410        {
411            CHECK(mIsAsyncPrepare);
412
413            notifyListener_l(MEDIA_PREPARED);
414            break;
415        }
416
417        default:
418            break;
419    }
420
421    if (mState != STATE_STOPPED) {
422        notifyListener_l(MEDIA_STOPPED);
423    }
424
425    mState = STATE_RESET_IN_PROGRESS;
426    mPlayer->resetAsync();
427
428    while (mState == STATE_RESET_IN_PROGRESS) {
429        mCondition.wait(mLock);
430    }
431
432    mDurationUs = -1;
433    mPositionUs = -1;
434    mStartupSeekTimeUs = -1;
435    mLooping = false;
436
437    return OK;
438}
439
440status_t NuPlayerDriver::setLooping(int loop) {
441    mLooping = loop != 0;
442    return OK;
443}
444
445player_type NuPlayerDriver::playerType() {
446    return NU_PLAYER;
447}
448
449status_t NuPlayerDriver::invoke(const Parcel &request, Parcel *reply) {
450    if (reply == NULL) {
451        ALOGE("reply is a NULL pointer");
452        return BAD_VALUE;
453    }
454
455    int32_t methodId;
456    status_t ret = request.readInt32(&methodId);
457    if (ret != OK) {
458        ALOGE("Failed to retrieve the requested method to invoke");
459        return ret;
460    }
461
462    switch (methodId) {
463        case INVOKE_ID_SET_VIDEO_SCALING_MODE:
464        {
465            int mode = request.readInt32();
466            return mPlayer->setVideoScalingMode(mode);
467        }
468
469        case INVOKE_ID_GET_TRACK_INFO:
470        {
471            return mPlayer->getTrackInfo(reply);
472        }
473
474        case INVOKE_ID_SELECT_TRACK:
475        {
476            int trackIndex = request.readInt32();
477            return mPlayer->selectTrack(trackIndex, true /* select */);
478        }
479
480        case INVOKE_ID_UNSELECT_TRACK:
481        {
482            int trackIndex = request.readInt32();
483            return mPlayer->selectTrack(trackIndex, false /* select */);
484        }
485
486        case INVOKE_ID_GET_SELECTED_TRACK:
487        {
488            int32_t type = request.readInt32();
489            return mPlayer->getSelectedTrack(type, reply);
490        }
491
492        default:
493        {
494            return INVALID_OPERATION;
495        }
496    }
497}
498
499void NuPlayerDriver::setAudioSink(const sp<AudioSink> &audioSink) {
500    mPlayer->setAudioSink(audioSink);
501}
502
503status_t NuPlayerDriver::setParameter(
504        int /* key */, const Parcel & /* request */) {
505    return INVALID_OPERATION;
506}
507
508status_t NuPlayerDriver::getParameter(int /* key */, Parcel * /* reply */) {
509    return INVALID_OPERATION;
510}
511
512status_t NuPlayerDriver::getMetadata(
513        const media::Metadata::Filter& /* ids */, Parcel *records) {
514    Mutex::Autolock autoLock(mLock);
515
516    using media::Metadata;
517
518    Metadata meta(records);
519
520    meta.appendBool(
521            Metadata::kPauseAvailable,
522            mPlayerFlags & NuPlayer::Source::FLAG_CAN_PAUSE);
523
524    meta.appendBool(
525            Metadata::kSeekBackwardAvailable,
526            mPlayerFlags & NuPlayer::Source::FLAG_CAN_SEEK_BACKWARD);
527
528    meta.appendBool(
529            Metadata::kSeekForwardAvailable,
530            mPlayerFlags & NuPlayer::Source::FLAG_CAN_SEEK_FORWARD);
531
532    meta.appendBool(
533            Metadata::kSeekAvailable,
534            mPlayerFlags & NuPlayer::Source::FLAG_CAN_SEEK);
535
536    return OK;
537}
538
539void NuPlayerDriver::notifyResetComplete() {
540    Mutex::Autolock autoLock(mLock);
541
542    CHECK_EQ(mState, STATE_RESET_IN_PROGRESS);
543    mState = STATE_IDLE;
544    mCondition.broadcast();
545}
546
547void NuPlayerDriver::notifySetSurfaceComplete() {
548    Mutex::Autolock autoLock(mLock);
549
550    CHECK(mSetSurfaceInProgress);
551    mSetSurfaceInProgress = false;
552
553    mCondition.broadcast();
554}
555
556void NuPlayerDriver::notifyDuration(int64_t durationUs) {
557    Mutex::Autolock autoLock(mLock);
558    mDurationUs = durationUs;
559}
560
561void NuPlayerDriver::notifyPosition(int64_t positionUs) {
562    Mutex::Autolock autoLock(mLock);
563    mPositionUs = positionUs;
564    mNotifyTimeRealUs = ALooper::GetNowUs();
565}
566
567void NuPlayerDriver::notifySeekComplete() {
568    Mutex::Autolock autoLock(mLock);
569    notifySeekComplete_l();
570}
571
572void NuPlayerDriver::notifySeekComplete_l() {
573    bool wasSeeking = true;
574    if (mState == STATE_STOPPED_AND_PREPARING) {
575        wasSeeking = false;
576        mState = STATE_STOPPED_AND_PREPARED;
577        mCondition.broadcast();
578        if (!mIsAsyncPrepare) {
579            // if we are preparing synchronously, no need to notify listener
580            return;
581        }
582    } else if (mState == STATE_STOPPED) {
583        // no need to notify listener
584        return;
585    }
586    notifyListener_l(wasSeeking ? MEDIA_SEEK_COMPLETE : MEDIA_PREPARED);
587}
588
589void NuPlayerDriver::notifyFrameStats(
590        int64_t numFramesTotal, int64_t numFramesDropped) {
591    Mutex::Autolock autoLock(mLock);
592    mNumFramesTotal = numFramesTotal;
593    mNumFramesDropped = numFramesDropped;
594}
595
596status_t NuPlayerDriver::dump(
597        int fd, const Vector<String16> & /* args */) const {
598    Mutex::Autolock autoLock(mLock);
599
600    FILE *out = fdopen(dup(fd), "w");
601
602    fprintf(out, " NuPlayer\n");
603    fprintf(out, "  numFramesTotal(%" PRId64 "), numFramesDropped(%" PRId64 "), "
604                 "percentageDropped(%.2f)\n",
605                 mNumFramesTotal,
606                 mNumFramesDropped,
607                 mNumFramesTotal == 0
608                    ? 0.0 : (double)mNumFramesDropped / mNumFramesTotal);
609
610    fclose(out);
611    out = NULL;
612
613    return OK;
614}
615
616void NuPlayerDriver::notifyListener(
617        int msg, int ext1, int ext2, const Parcel *in) {
618    Mutex::Autolock autoLock(mLock);
619    notifyListener_l(msg, ext1, ext2, in);
620}
621
622void NuPlayerDriver::notifyListener_l(
623        int msg, int ext1, int ext2, const Parcel *in) {
624    switch (msg) {
625        case MEDIA_PLAYBACK_COMPLETE:
626        {
627            if (mLooping) {
628                mLock.unlock();
629                mPlayer->seekToAsync(0);
630                mLock.lock();
631                break;
632            }
633            // fall through
634        }
635
636        case MEDIA_ERROR:
637        {
638            mAtEOS = true;
639            setPauseStartedTimeIfNeeded();
640            break;
641        }
642
643        default:
644            break;
645    }
646
647    mLock.unlock();
648    sendEvent(msg, ext1, ext2, in);
649    mLock.lock();
650}
651
652void NuPlayerDriver::notifySetDataSourceCompleted(status_t err) {
653    Mutex::Autolock autoLock(mLock);
654
655    CHECK_EQ(mState, STATE_SET_DATASOURCE_PENDING);
656
657    mAsyncResult = err;
658    mState = (err == OK) ? STATE_UNPREPARED : STATE_IDLE;
659    mCondition.broadcast();
660}
661
662void NuPlayerDriver::notifyPrepareCompleted(status_t err) {
663    Mutex::Autolock autoLock(mLock);
664
665    if (mState != STATE_PREPARING) {
666        // We were preparing asynchronously when the client called
667        // reset(), we sent a premature "prepared" notification and
668        // then initiated the reset. This notification is stale.
669        CHECK(mState == STATE_RESET_IN_PROGRESS || mState == STATE_IDLE);
670        return;
671    }
672
673    CHECK_EQ(mState, STATE_PREPARING);
674
675    mAsyncResult = err;
676
677    if (err == OK) {
678        if (mIsAsyncPrepare) {
679            notifyListener_l(MEDIA_PREPARED);
680        }
681        mState = STATE_PREPARED;
682    } else {
683        if (mIsAsyncPrepare) {
684            notifyListener_l(MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, err);
685        }
686        mState = STATE_UNPREPARED;
687    }
688
689    mCondition.broadcast();
690}
691
692void NuPlayerDriver::notifyFlagsChanged(uint32_t flags) {
693    Mutex::Autolock autoLock(mLock);
694
695    mPlayerFlags = flags;
696}
697
698void NuPlayerDriver::setPauseStartedTimeIfNeeded() {
699    if (mPauseStartedTimeUs == -1) {
700        mPauseStartedTimeUs = ALooper::GetNowUs();
701    }
702}
703
704}  // namespace android
705