NuPlayerDriver.cpp revision 575af1dab104287e65528a76dcf5ff07bc989114 
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            if (mAtEOS) {
267                mPlayer->seekToAsync(0);
268            }
269            mPlayer->resume();
270            mPositionUs -= ALooper::GetNowUs() - mPauseStartedTimeUs;
271            break;
272        }
273
274        default:
275            return INVALID_OPERATION;
276    }
277
278    mState = STATE_RUNNING;
279    mPauseStartedTimeUs = -1;
280
281    return OK;
282}
283
284status_t NuPlayerDriver::stop() {
285    Mutex::Autolock autoLock(mLock);
286
287    switch (mState) {
288        case STATE_RUNNING:
289            mPlayer->pause();
290            // fall through
291
292        case STATE_PAUSED:
293            mState = STATE_STOPPED;
294            notifyListener_l(MEDIA_STOPPED);
295            break;
296
297        case STATE_PREPARED:
298        case STATE_STOPPED:
299        case STATE_STOPPED_AND_PREPARING:
300        case STATE_STOPPED_AND_PREPARED:
301            mState = STATE_STOPPED;
302            break;
303
304        default:
305            return INVALID_OPERATION;
306    }
307    setPauseStartedTimeIfNeeded();
308
309    return OK;
310}
311
312status_t NuPlayerDriver::pause() {
313    Mutex::Autolock autoLock(mLock);
314
315    switch (mState) {
316        case STATE_PAUSED:
317        case STATE_PREPARED:
318            return OK;
319
320        case STATE_RUNNING:
321            setPauseStartedTimeIfNeeded();
322            mState = STATE_PAUSED;
323            notifyListener_l(MEDIA_PAUSED);
324            mPlayer->pause();
325            break;
326
327        default:
328            return INVALID_OPERATION;
329    }
330
331    return OK;
332}
333
334bool NuPlayerDriver::isPlaying() {
335    return mState == STATE_RUNNING && !mAtEOS;
336}
337
338status_t NuPlayerDriver::seekTo(int msec) {
339    Mutex::Autolock autoLock(mLock);
340
341    int64_t seekTimeUs = msec * 1000ll;
342
343    switch (mState) {
344        case STATE_PREPARED:
345        {
346            int curpos = 0;
347            if (mPositionUs > 0) {
348                curpos = (mPositionUs + 500ll) / 1000;
349            }
350            if (curpos == msec) {
351                // nothing to do, and doing something anyway could result in deadlock (b/15323063)
352                break;
353            }
354            mStartupSeekTimeUs = seekTimeUs;
355            // pretend that the seek completed. It will actually happen when starting playback.
356            // TODO: actually perform the seek here, so the player is ready to go at the new
357            // location
358            notifySeekComplete_l();
359            break;
360        }
361
362        case STATE_RUNNING:
363        case STATE_PAUSED:
364        {
365            mAtEOS = false;
366            // seeks can take a while, so we essentially paused
367            notifyListener_l(MEDIA_PAUSED);
368            mPlayer->seekToAsync(seekTimeUs);
369            break;
370        }
371
372        default:
373            return INVALID_OPERATION;
374    }
375
376    mPositionUs = seekTimeUs;
377    mNotifyTimeRealUs = -1;
378    return OK;
379}
380
381status_t NuPlayerDriver::getCurrentPosition(int *msec) {
382    Mutex::Autolock autoLock(mLock);
383
384    if (mPositionUs < 0) {
385        *msec = 0;
386    } else if (mNotifyTimeRealUs == -1) {
387        *msec = mPositionUs / 1000;
388    } else {
389        int64_t nowUs =
390                (isPlaying() ?  ALooper::GetNowUs() : mPauseStartedTimeUs);
391        *msec = (mPositionUs + nowUs - mNotifyTimeRealUs + 500ll) / 1000;
392    }
393
394    return OK;
395}
396
397status_t NuPlayerDriver::getDuration(int *msec) {
398    Mutex::Autolock autoLock(mLock);
399
400    if (mDurationUs < 0) {
401        return UNKNOWN_ERROR;
402    }
403
404    *msec = (mDurationUs + 500ll) / 1000;
405
406    return OK;
407}
408
409status_t NuPlayerDriver::reset() {
410    Mutex::Autolock autoLock(mLock);
411
412    switch (mState) {
413        case STATE_IDLE:
414            return OK;
415
416        case STATE_SET_DATASOURCE_PENDING:
417        case STATE_RESET_IN_PROGRESS:
418            return INVALID_OPERATION;
419
420        case STATE_PREPARING:
421        {
422            CHECK(mIsAsyncPrepare);
423
424            notifyListener_l(MEDIA_PREPARED);
425            break;
426        }
427
428        default:
429            break;
430    }
431
432    if (mState != STATE_STOPPED) {
433        notifyListener_l(MEDIA_STOPPED);
434    }
435
436    mState = STATE_RESET_IN_PROGRESS;
437    mPlayer->resetAsync();
438
439    while (mState == STATE_RESET_IN_PROGRESS) {
440        mCondition.wait(mLock);
441    }
442
443    mDurationUs = -1;
444    mPositionUs = -1;
445    mStartupSeekTimeUs = -1;
446    mLooping = false;
447
448    return OK;
449}
450
451status_t NuPlayerDriver::setLooping(int loop) {
452    mLooping = loop != 0;
453    return OK;
454}
455
456player_type NuPlayerDriver::playerType() {
457    return NU_PLAYER;
458}
459
460status_t NuPlayerDriver::invoke(const Parcel &request, Parcel *reply) {
461    if (reply == NULL) {
462        ALOGE("reply is a NULL pointer");
463        return BAD_VALUE;
464    }
465
466    int32_t methodId;
467    status_t ret = request.readInt32(&methodId);
468    if (ret != OK) {
469        ALOGE("Failed to retrieve the requested method to invoke");
470        return ret;
471    }
472
473    switch (methodId) {
474        case INVOKE_ID_SET_VIDEO_SCALING_MODE:
475        {
476            int mode = request.readInt32();
477            return mPlayer->setVideoScalingMode(mode);
478        }
479
480        case INVOKE_ID_GET_TRACK_INFO:
481        {
482            return mPlayer->getTrackInfo(reply);
483        }
484
485        case INVOKE_ID_SELECT_TRACK:
486        {
487            int trackIndex = request.readInt32();
488            return mPlayer->selectTrack(trackIndex, true /* select */);
489        }
490
491        case INVOKE_ID_UNSELECT_TRACK:
492        {
493            int trackIndex = request.readInt32();
494            return mPlayer->selectTrack(trackIndex, false /* select */);
495        }
496
497        case INVOKE_ID_GET_SELECTED_TRACK:
498        {
499            int32_t type = request.readInt32();
500            return mPlayer->getSelectedTrack(type, reply);
501        }
502
503        default:
504        {
505            return INVALID_OPERATION;
506        }
507    }
508}
509
510void NuPlayerDriver::setAudioSink(const sp<AudioSink> &audioSink) {
511    mPlayer->setAudioSink(audioSink);
512}
513
514status_t NuPlayerDriver::setParameter(
515        int /* key */, const Parcel & /* request */) {
516    return INVALID_OPERATION;
517}
518
519status_t NuPlayerDriver::getParameter(int /* key */, Parcel * /* reply */) {
520    return INVALID_OPERATION;
521}
522
523status_t NuPlayerDriver::getMetadata(
524        const media::Metadata::Filter& /* ids */, Parcel *records) {
525    Mutex::Autolock autoLock(mLock);
526
527    using media::Metadata;
528
529    Metadata meta(records);
530
531    meta.appendBool(
532            Metadata::kPauseAvailable,
533            mPlayerFlags & NuPlayer::Source::FLAG_CAN_PAUSE);
534
535    meta.appendBool(
536            Metadata::kSeekBackwardAvailable,
537            mPlayerFlags & NuPlayer::Source::FLAG_CAN_SEEK_BACKWARD);
538
539    meta.appendBool(
540            Metadata::kSeekForwardAvailable,
541            mPlayerFlags & NuPlayer::Source::FLAG_CAN_SEEK_FORWARD);
542
543    meta.appendBool(
544            Metadata::kSeekAvailable,
545            mPlayerFlags & NuPlayer::Source::FLAG_CAN_SEEK);
546
547    return OK;
548}
549
550void NuPlayerDriver::notifyResetComplete() {
551    Mutex::Autolock autoLock(mLock);
552
553    CHECK_EQ(mState, STATE_RESET_IN_PROGRESS);
554    mState = STATE_IDLE;
555    mCondition.broadcast();
556}
557
558void NuPlayerDriver::notifySetSurfaceComplete() {
559    Mutex::Autolock autoLock(mLock);
560
561    CHECK(mSetSurfaceInProgress);
562    mSetSurfaceInProgress = false;
563
564    mCondition.broadcast();
565}
566
567void NuPlayerDriver::notifyDuration(int64_t durationUs) {
568    Mutex::Autolock autoLock(mLock);
569    mDurationUs = durationUs;
570}
571
572void NuPlayerDriver::notifyPosition(int64_t positionUs) {
573    Mutex::Autolock autoLock(mLock);
574    if (isPlaying()) {
575        mPositionUs = positionUs;
576        mNotifyTimeRealUs = ALooper::GetNowUs();
577    }
578}
579
580void NuPlayerDriver::notifySeekComplete() {
581    Mutex::Autolock autoLock(mLock);
582    notifySeekComplete_l();
583}
584
585void NuPlayerDriver::notifySeekComplete_l() {
586    bool wasSeeking = true;
587    if (mState == STATE_STOPPED_AND_PREPARING) {
588        wasSeeking = false;
589        mState = STATE_STOPPED_AND_PREPARED;
590        mCondition.broadcast();
591        if (!mIsAsyncPrepare) {
592            // if we are preparing synchronously, no need to notify listener
593            return;
594        }
595    } else if (mState == STATE_STOPPED) {
596        // no need to notify listener
597        return;
598    }
599    notifyListener_l(wasSeeking ? MEDIA_SEEK_COMPLETE : MEDIA_PREPARED);
600}
601
602void NuPlayerDriver::notifyFrameStats(
603        int64_t numFramesTotal, int64_t numFramesDropped) {
604    Mutex::Autolock autoLock(mLock);
605    mNumFramesTotal = numFramesTotal;
606    mNumFramesDropped = numFramesDropped;
607}
608
609status_t NuPlayerDriver::dump(
610        int fd, const Vector<String16> & /* args */) const {
611    Mutex::Autolock autoLock(mLock);
612
613    FILE *out = fdopen(dup(fd), "w");
614
615    fprintf(out, " NuPlayer\n");
616    fprintf(out, "  numFramesTotal(%" PRId64 "), numFramesDropped(%" PRId64 "), "
617                 "percentageDropped(%.2f)\n",
618                 mNumFramesTotal,
619                 mNumFramesDropped,
620                 mNumFramesTotal == 0
621                    ? 0.0 : (double)mNumFramesDropped / mNumFramesTotal);
622
623    fclose(out);
624    out = NULL;
625
626    return OK;
627}
628
629void NuPlayerDriver::notifyListener(
630        int msg, int ext1, int ext2, const Parcel *in) {
631    Mutex::Autolock autoLock(mLock);
632    notifyListener_l(msg, ext1, ext2, in);
633}
634
635void NuPlayerDriver::notifyListener_l(
636        int msg, int ext1, int ext2, const Parcel *in) {
637    switch (msg) {
638        case MEDIA_PLAYBACK_COMPLETE:
639        {
640            if (mLooping) {
641                mLock.unlock();
642                mPlayer->seekToAsync(0);
643                mLock.lock();
644                break;
645            } else {
646                mState = STATE_PAUSED;
647            }
648            // fall through
649        }
650
651        case MEDIA_ERROR:
652        {
653            mAtEOS = true;
654            setPauseStartedTimeIfNeeded();
655            break;
656        }
657
658        default:
659            break;
660    }
661
662    mLock.unlock();
663    sendEvent(msg, ext1, ext2, in);
664    mLock.lock();
665}
666
667void NuPlayerDriver::notifySetDataSourceCompleted(status_t err) {
668    Mutex::Autolock autoLock(mLock);
669
670    CHECK_EQ(mState, STATE_SET_DATASOURCE_PENDING);
671
672    mAsyncResult = err;
673    mState = (err == OK) ? STATE_UNPREPARED : STATE_IDLE;
674    mCondition.broadcast();
675}
676
677void NuPlayerDriver::notifyPrepareCompleted(status_t err) {
678    Mutex::Autolock autoLock(mLock);
679
680    if (mState != STATE_PREPARING) {
681        // We were preparing asynchronously when the client called
682        // reset(), we sent a premature "prepared" notification and
683        // then initiated the reset. This notification is stale.
684        CHECK(mState == STATE_RESET_IN_PROGRESS || mState == STATE_IDLE);
685        return;
686    }
687
688    CHECK_EQ(mState, STATE_PREPARING);
689
690    mAsyncResult = err;
691
692    if (err == OK) {
693        // update state before notifying client, so that if client calls back into NuPlayerDriver
694        // in response, NuPlayerDriver has the right state
695        mState = STATE_PREPARED;
696        if (mIsAsyncPrepare) {
697            notifyListener_l(MEDIA_PREPARED);
698        }
699    } else {
700        mState = STATE_UNPREPARED;
701        if (mIsAsyncPrepare) {
702            notifyListener_l(MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, err);
703        }
704    }
705
706    mCondition.broadcast();
707}
708
709void NuPlayerDriver::notifyFlagsChanged(uint32_t flags) {
710    Mutex::Autolock autoLock(mLock);
711
712    mPlayerFlags = flags;
713}
714
715void NuPlayerDriver::setPauseStartedTimeIfNeeded() {
716    if (mPauseStartedTimeUs == -1) {
717        mPauseStartedTimeUs = ALooper::GetNowUs();
718    }
719}
720
721}  // namespace android
722