NuPlayerDriver.cpp revision 3e15aea623a4c7a21719e4a947e72ff5c23494f6 
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#include <media/stagefright/Utils.h>
31
32namespace android {
33
34NuPlayerDriver::NuPlayerDriver()
35    : mState(STATE_IDLE),
36      mIsAsyncPrepare(false),
37      mAsyncResult(UNKNOWN_ERROR),
38      mSetSurfaceInProgress(false),
39      mDurationUs(-1),
40      mPositionUs(-1),
41      mNotifyTimeRealUs(-1),
42      mPauseStartedTimeUs(-1),
43      mNumFramesTotal(0),
44      mNumFramesDropped(0),
45      mLooper(new ALooper),
46      mPlayerFlags(0),
47      mAtEOS(false),
48      mLooping(false),
49      mAutoLoop(false),
50      mStartupSeekTimeUs(-1) {
51    ALOGV("NuPlayerDriver(%p)", this);
52    mLooper->setName("NuPlayerDriver Looper");
53
54    mLooper->start(
55            false, /* runOnCallingThread */
56            true,  /* canCallJava */
57            PRIORITY_AUDIO);
58
59    mPlayer = new NuPlayer;
60    mLooper->registerHandler(mPlayer);
61
62    mPlayer->setDriver(this);
63}
64
65NuPlayerDriver::~NuPlayerDriver() {
66    ALOGV("~NuPlayerDriver(%p)", this);
67    mLooper->stop();
68}
69
70status_t NuPlayerDriver::initCheck() {
71    return OK;
72}
73
74status_t NuPlayerDriver::setUID(uid_t uid) {
75    mPlayer->setUID(uid);
76
77    return OK;
78}
79
80status_t NuPlayerDriver::setDataSource(
81        const sp<IMediaHTTPService> &httpService,
82        const char *url,
83        const KeyedVector<String8, String8> *headers) {
84    ALOGV("setDataSource(%p) url(%s)", this, uriDebugString(url, false).c_str());
85    Mutex::Autolock autoLock(mLock);
86
87    if (mState != STATE_IDLE) {
88        return INVALID_OPERATION;
89    }
90
91    mState = STATE_SET_DATASOURCE_PENDING;
92
93    mPlayer->setDataSourceAsync(httpService, url, headers);
94
95    while (mState == STATE_SET_DATASOURCE_PENDING) {
96        mCondition.wait(mLock);
97    }
98
99    return mAsyncResult;
100}
101
102status_t NuPlayerDriver::setDataSource(int fd, int64_t offset, int64_t length) {
103    ALOGV("setDataSource(%p) file(%d)", this, fd);
104    Mutex::Autolock autoLock(mLock);
105
106    if (mState != STATE_IDLE) {
107        return INVALID_OPERATION;
108    }
109
110    mState = STATE_SET_DATASOURCE_PENDING;
111
112    mPlayer->setDataSourceAsync(fd, offset, length);
113
114    while (mState == STATE_SET_DATASOURCE_PENDING) {
115        mCondition.wait(mLock);
116    }
117
118    return mAsyncResult;
119}
120
121status_t NuPlayerDriver::setDataSource(const sp<IStreamSource> &source) {
122    ALOGV("setDataSource(%p) stream source", this);
123    Mutex::Autolock autoLock(mLock);
124
125    if (mState != STATE_IDLE) {
126        return INVALID_OPERATION;
127    }
128
129    mState = STATE_SET_DATASOURCE_PENDING;
130
131    mPlayer->setDataSourceAsync(source);
132
133    while (mState == STATE_SET_DATASOURCE_PENDING) {
134        mCondition.wait(mLock);
135    }
136
137    return mAsyncResult;
138}
139
140status_t NuPlayerDriver::setVideoSurfaceTexture(
141        const sp<IGraphicBufferProducer> &bufferProducer) {
142    ALOGV("setVideoSurfaceTexture(%p)", this);
143    Mutex::Autolock autoLock(mLock);
144
145    if (mSetSurfaceInProgress) {
146        return INVALID_OPERATION;
147    }
148
149    switch (mState) {
150        case STATE_SET_DATASOURCE_PENDING:
151        case STATE_RESET_IN_PROGRESS:
152            return INVALID_OPERATION;
153
154        default:
155            break;
156    }
157
158    mSetSurfaceInProgress = true;
159
160    mPlayer->setVideoSurfaceTextureAsync(bufferProducer);
161
162    while (mSetSurfaceInProgress) {
163        mCondition.wait(mLock);
164    }
165
166    return OK;
167}
168
169status_t NuPlayerDriver::prepare() {
170    ALOGV("prepare(%p)", this);
171    Mutex::Autolock autoLock(mLock);
172    return prepare_l();
173}
174
175status_t NuPlayerDriver::prepare_l() {
176    switch (mState) {
177        case STATE_UNPREPARED:
178            mState = STATE_PREPARING;
179
180            // Make sure we're not posting any notifications, success or
181            // failure information is only communicated through our result
182            // code.
183            mIsAsyncPrepare = false;
184            mPlayer->prepareAsync();
185            while (mState == STATE_PREPARING) {
186                mCondition.wait(mLock);
187            }
188            return (mState == STATE_PREPARED) ? OK : UNKNOWN_ERROR;
189        case STATE_STOPPED:
190            // this is really just paused. handle as seek to start
191            mAtEOS = false;
192            mState = STATE_STOPPED_AND_PREPARING;
193            mIsAsyncPrepare = false;
194            mPlayer->seekToAsync(0);
195            while (mState == STATE_STOPPED_AND_PREPARING) {
196                mCondition.wait(mLock);
197            }
198            return (mState == STATE_STOPPED_AND_PREPARED) ? OK : UNKNOWN_ERROR;
199        default:
200            return INVALID_OPERATION;
201    };
202}
203
204status_t NuPlayerDriver::prepareAsync() {
205    ALOGV("prepareAsync(%p)", this);
206    Mutex::Autolock autoLock(mLock);
207
208    switch (mState) {
209        case STATE_UNPREPARED:
210            mState = STATE_PREPARING;
211            mIsAsyncPrepare = true;
212            mPlayer->prepareAsync();
213            return OK;
214        case STATE_STOPPED:
215            // this is really just paused. handle as seek to start
216            mAtEOS = false;
217            mState = STATE_STOPPED_AND_PREPARING;
218            mIsAsyncPrepare = true;
219            mPlayer->seekToAsync(0);
220            return OK;
221        default:
222            return INVALID_OPERATION;
223    };
224}
225
226status_t NuPlayerDriver::start() {
227    ALOGD("start(%p)", this);
228    Mutex::Autolock autoLock(mLock);
229
230    switch (mState) {
231        case STATE_UNPREPARED:
232        {
233            status_t err = prepare_l();
234
235            if (err != OK) {
236                return err;
237            }
238
239            CHECK_EQ(mState, STATE_PREPARED);
240
241            // fall through
242        }
243
244        case STATE_PREPARED:
245        {
246            mAtEOS = false;
247            mPlayer->start();
248
249            if (mStartupSeekTimeUs >= 0) {
250                if (mStartupSeekTimeUs > 0) {
251                    mPlayer->seekToAsync(mStartupSeekTimeUs);
252                }
253
254                mStartupSeekTimeUs = -1;
255            }
256            break;
257        }
258
259        case STATE_RUNNING:
260        {
261            if (mAtEOS) {
262                mPlayer->seekToAsync(0);
263                mAtEOS = false;
264                mPositionUs = -1;
265            }
266            break;
267        }
268
269        case STATE_PAUSED:
270        case STATE_STOPPED_AND_PREPARED:
271        {
272            if (mAtEOS) {
273                mPlayer->seekToAsync(0);
274                mAtEOS = false;
275                mPlayer->resume();
276                mPositionUs = -1;
277            } else {
278                mPlayer->resume();
279                if (mNotifyTimeRealUs != -1) {
280                    // Pause time must be set if here by setPauseStartedTimeIfNeeded().
281                    //CHECK(mPauseStartedTimeUs != -1);
282
283                    // if no seek occurs, adjust our notify time so that getCurrentPosition()
284                    // is continuous if read immediately after calling start().
285                    mNotifyTimeRealUs += ALooper::GetNowUs() - mPauseStartedTimeUs;
286                }
287            }
288            break;
289        }
290
291        default:
292            return INVALID_OPERATION;
293    }
294
295    mState = STATE_RUNNING;
296    mPauseStartedTimeUs = -1;
297
298    return OK;
299}
300
301status_t NuPlayerDriver::stop() {
302    ALOGD("stop(%p)", this);
303    Mutex::Autolock autoLock(mLock);
304
305    switch (mState) {
306        case STATE_RUNNING:
307            mPlayer->pause();
308            // fall through
309
310        case STATE_PAUSED:
311            mState = STATE_STOPPED;
312            notifyListener_l(MEDIA_STOPPED);
313            break;
314
315        case STATE_PREPARED:
316        case STATE_STOPPED:
317        case STATE_STOPPED_AND_PREPARING:
318        case STATE_STOPPED_AND_PREPARED:
319            mState = STATE_STOPPED;
320            break;
321
322        default:
323            return INVALID_OPERATION;
324    }
325    setPauseStartedTimeIfNeeded();
326
327    return OK;
328}
329
330status_t NuPlayerDriver::pause() {
331    Mutex::Autolock autoLock(mLock);
332
333    switch (mState) {
334        case STATE_PAUSED:
335        case STATE_PREPARED:
336            return OK;
337
338        case STATE_RUNNING:
339            setPauseStartedTimeIfNeeded();
340            mState = STATE_PAUSED;
341            notifyListener_l(MEDIA_PAUSED);
342            mPlayer->pause();
343            break;
344
345        default:
346            return INVALID_OPERATION;
347    }
348
349    return OK;
350}
351
352bool NuPlayerDriver::isPlaying() {
353    return mState == STATE_RUNNING && !mAtEOS;
354}
355
356status_t NuPlayerDriver::seekTo(int msec) {
357    ALOGD("seekTo(%p) %d ms", this, msec);
358    Mutex::Autolock autoLock(mLock);
359
360    int64_t seekTimeUs = msec * 1000ll;
361
362    switch (mState) {
363        case STATE_PREPARED:
364        {
365            mStartupSeekTimeUs = seekTimeUs;
366            // pretend that the seek completed. It will actually happen when starting playback.
367            // TODO: actually perform the seek here, so the player is ready to go at the new
368            // location
369            notifySeekComplete_l();
370            break;
371        }
372
373        case STATE_RUNNING:
374        case STATE_PAUSED:
375        {
376            mAtEOS = false;
377            // seeks can take a while, so we essentially paused
378            notifyListener_l(MEDIA_PAUSED);
379            mPlayer->seekToAsync(seekTimeUs, true /* needNotify */);
380            break;
381        }
382
383        default:
384            return INVALID_OPERATION;
385    }
386
387    mPositionUs = seekTimeUs;
388    mNotifyTimeRealUs = -1;
389    return OK;
390}
391
392status_t NuPlayerDriver::getCurrentPosition(int *msec) {
393    Mutex::Autolock autoLock(mLock);
394
395    if (mPositionUs < 0) {
396        // mPositionUs is the media time.
397        // It is negative under these cases
398        // (1) == -1 after reset, or very first playback, no stream notification yet.
399        // (2) == -1 start after end of stream, no stream notification yet.
400        // (3) == large negative # after ~292,471 years of continuous playback.
401
402        //CHECK_EQ(mPositionUs, -1);
403        *msec = 0;
404    } else if (mNotifyTimeRealUs == -1) {
405        // A seek has occurred just occurred, no stream notification yet.
406        // mPositionUs (>= 0) is the new media position.
407        *msec = mPositionUs / 1000;
408    } else {
409        // mPosition must be valid (i.e. >= 0) by the first check above.
410        // We're either playing or have pause time set: mPauseStartedTimeUs is >= 0
411        //LOG_ALWAYS_FATAL_IF(
412        //        !isPlaying() && mPauseStartedTimeUs < 0,
413        //        "Player in non-playing mState(%d) and mPauseStartedTimeUs(%lld) < 0",
414        //        mState, (long long)mPauseStartedTimeUs);
415        ALOG_ASSERT(mNotifyTimeRealUs >= 0);
416        int64_t nowUs =
417                (isPlaying() ?  ALooper::GetNowUs() : mPauseStartedTimeUs);
418        *msec = (mPositionUs + nowUs - mNotifyTimeRealUs + 500ll) / 1000;
419        // It is possible for *msec to be negative if the media position is > 596 hours.
420        // but we turn on this checking in NDEBUG == 0 mode.
421        ALOG_ASSERT(*msec >= 0);
422        ALOGV("getCurrentPosition nowUs(%lld)", (long long)nowUs);
423    }
424    ALOGV("getCurrentPosition returning(%d) mPositionUs(%lld) mNotifyRealTimeUs(%lld)",
425            *msec, (long long)mPositionUs, (long long)mNotifyTimeRealUs);
426    return OK;
427}
428
429status_t NuPlayerDriver::getDuration(int *msec) {
430    Mutex::Autolock autoLock(mLock);
431
432    if (mDurationUs < 0) {
433        return UNKNOWN_ERROR;
434    }
435
436    *msec = (mDurationUs + 500ll) / 1000;
437
438    return OK;
439}
440
441status_t NuPlayerDriver::reset() {
442    ALOGD("reset(%p)", this);
443    Mutex::Autolock autoLock(mLock);
444
445    switch (mState) {
446        case STATE_IDLE:
447            return OK;
448
449        case STATE_SET_DATASOURCE_PENDING:
450        case STATE_RESET_IN_PROGRESS:
451            return INVALID_OPERATION;
452
453        case STATE_PREPARING:
454        {
455            CHECK(mIsAsyncPrepare);
456
457            notifyListener_l(MEDIA_PREPARED);
458            break;
459        }
460
461        default:
462            break;
463    }
464
465    if (mState != STATE_STOPPED) {
466        notifyListener_l(MEDIA_STOPPED);
467    }
468
469    mState = STATE_RESET_IN_PROGRESS;
470    mPlayer->resetAsync();
471
472    while (mState == STATE_RESET_IN_PROGRESS) {
473        mCondition.wait(mLock);
474    }
475
476    mDurationUs = -1;
477    mPositionUs = -1;
478    mStartupSeekTimeUs = -1;
479    mLooping = false;
480
481    return OK;
482}
483
484status_t NuPlayerDriver::setLooping(int loop) {
485    mLooping = loop != 0;
486    return OK;
487}
488
489player_type NuPlayerDriver::playerType() {
490    return NU_PLAYER;
491}
492
493status_t NuPlayerDriver::invoke(const Parcel &request, Parcel *reply) {
494    if (reply == NULL) {
495        ALOGE("reply is a NULL pointer");
496        return BAD_VALUE;
497    }
498
499    int32_t methodId;
500    status_t ret = request.readInt32(&methodId);
501    if (ret != OK) {
502        ALOGE("Failed to retrieve the requested method to invoke");
503        return ret;
504    }
505
506    switch (methodId) {
507        case INVOKE_ID_SET_VIDEO_SCALING_MODE:
508        {
509            int mode = request.readInt32();
510            return mPlayer->setVideoScalingMode(mode);
511        }
512
513        case INVOKE_ID_GET_TRACK_INFO:
514        {
515            return mPlayer->getTrackInfo(reply);
516        }
517
518        case INVOKE_ID_SELECT_TRACK:
519        {
520            int trackIndex = request.readInt32();
521            return mPlayer->selectTrack(trackIndex, true /* select */);
522        }
523
524        case INVOKE_ID_UNSELECT_TRACK:
525        {
526            int trackIndex = request.readInt32();
527            return mPlayer->selectTrack(trackIndex, false /* select */);
528        }
529
530        case INVOKE_ID_GET_SELECTED_TRACK:
531        {
532            int32_t type = request.readInt32();
533            return mPlayer->getSelectedTrack(type, reply);
534        }
535
536        default:
537        {
538            return INVALID_OPERATION;
539        }
540    }
541}
542
543void NuPlayerDriver::setAudioSink(const sp<AudioSink> &audioSink) {
544    mPlayer->setAudioSink(audioSink);
545    mAudioSink = audioSink;
546}
547
548status_t NuPlayerDriver::setParameter(
549        int /* key */, const Parcel & /* request */) {
550    return INVALID_OPERATION;
551}
552
553status_t NuPlayerDriver::getParameter(int /* key */, Parcel * /* reply */) {
554    return INVALID_OPERATION;
555}
556
557status_t NuPlayerDriver::getMetadata(
558        const media::Metadata::Filter& /* ids */, Parcel *records) {
559    Mutex::Autolock autoLock(mLock);
560
561    using media::Metadata;
562
563    Metadata meta(records);
564
565    meta.appendBool(
566            Metadata::kPauseAvailable,
567            mPlayerFlags & NuPlayer::Source::FLAG_CAN_PAUSE);
568
569    meta.appendBool(
570            Metadata::kSeekBackwardAvailable,
571            mPlayerFlags & NuPlayer::Source::FLAG_CAN_SEEK_BACKWARD);
572
573    meta.appendBool(
574            Metadata::kSeekForwardAvailable,
575            mPlayerFlags & NuPlayer::Source::FLAG_CAN_SEEK_FORWARD);
576
577    meta.appendBool(
578            Metadata::kSeekAvailable,
579            mPlayerFlags & NuPlayer::Source::FLAG_CAN_SEEK);
580
581    return OK;
582}
583
584void NuPlayerDriver::notifyResetComplete() {
585    ALOGI("notifyResetComplete(%p)", this);
586    Mutex::Autolock autoLock(mLock);
587
588    CHECK_EQ(mState, STATE_RESET_IN_PROGRESS);
589    mState = STATE_IDLE;
590    mCondition.broadcast();
591}
592
593void NuPlayerDriver::notifySetSurfaceComplete() {
594    ALOGV("notifySetSurfaceComplete(%p)", this);
595    Mutex::Autolock autoLock(mLock);
596
597    CHECK(mSetSurfaceInProgress);
598    mSetSurfaceInProgress = false;
599
600    mCondition.broadcast();
601}
602
603void NuPlayerDriver::notifyDuration(int64_t durationUs) {
604    Mutex::Autolock autoLock(mLock);
605    mDurationUs = durationUs;
606}
607
608void NuPlayerDriver::notifyPosition(int64_t positionUs) {
609    Mutex::Autolock autoLock(mLock);
610    if (isPlaying()) {
611        mPositionUs = positionUs;
612        mNotifyTimeRealUs = ALooper::GetNowUs();
613    }
614}
615
616void NuPlayerDriver::notifySeekComplete() {
617    ALOGV("notifySeekComplete(%p)", this);
618    Mutex::Autolock autoLock(mLock);
619    notifySeekComplete_l();
620}
621
622void NuPlayerDriver::notifySeekComplete_l() {
623    bool wasSeeking = true;
624    if (mState == STATE_STOPPED_AND_PREPARING) {
625        wasSeeking = false;
626        mState = STATE_STOPPED_AND_PREPARED;
627        mCondition.broadcast();
628        if (!mIsAsyncPrepare) {
629            // if we are preparing synchronously, no need to notify listener
630            return;
631        }
632    } else if (mState == STATE_STOPPED) {
633        // no need to notify listener
634        return;
635    }
636    notifyListener_l(wasSeeking ? MEDIA_SEEK_COMPLETE : MEDIA_PREPARED);
637}
638
639void NuPlayerDriver::notifyFrameStats(
640        int64_t numFramesTotal, int64_t numFramesDropped) {
641    Mutex::Autolock autoLock(mLock);
642    mNumFramesTotal = numFramesTotal;
643    mNumFramesDropped = numFramesDropped;
644}
645
646status_t NuPlayerDriver::dump(
647        int fd, const Vector<String16> & /* args */) const {
648    Mutex::Autolock autoLock(mLock);
649
650    FILE *out = fdopen(dup(fd), "w");
651
652    fprintf(out, " NuPlayer\n");
653    fprintf(out, "  numFramesTotal(%" PRId64 "), numFramesDropped(%" PRId64 "), "
654                 "percentageDropped(%.2f)\n",
655                 mNumFramesTotal,
656                 mNumFramesDropped,
657                 mNumFramesTotal == 0
658                    ? 0.0 : (double)mNumFramesDropped / mNumFramesTotal);
659
660    fclose(out);
661    out = NULL;
662
663    return OK;
664}
665
666void NuPlayerDriver::notifyListener(
667        int msg, int ext1, int ext2, const Parcel *in) {
668    Mutex::Autolock autoLock(mLock);
669    notifyListener_l(msg, ext1, ext2, in);
670}
671
672void NuPlayerDriver::notifyListener_l(
673        int msg, int ext1, int ext2, const Parcel *in) {
674    switch (msg) {
675        case MEDIA_PLAYBACK_COMPLETE:
676        {
677            if (mState != STATE_RESET_IN_PROGRESS) {
678                if (mLooping || (mAutoLoop
679                        && (mAudioSink == NULL || mAudioSink->realtime()))) {
680                    mPlayer->seekToAsync(0);
681                    break;
682                }
683
684                mPlayer->pause();
685                mState = STATE_PAUSED;
686            }
687            // fall through
688        }
689
690        case MEDIA_ERROR:
691        {
692            mAtEOS = true;
693            setPauseStartedTimeIfNeeded();
694            break;
695        }
696
697        default:
698            break;
699    }
700
701    mLock.unlock();
702    sendEvent(msg, ext1, ext2, in);
703    mLock.lock();
704}
705
706void NuPlayerDriver::notifySetDataSourceCompleted(status_t err) {
707    Mutex::Autolock autoLock(mLock);
708
709    CHECK_EQ(mState, STATE_SET_DATASOURCE_PENDING);
710
711    mAsyncResult = err;
712    mState = (err == OK) ? STATE_UNPREPARED : STATE_IDLE;
713    mCondition.broadcast();
714}
715
716void NuPlayerDriver::notifyPrepareCompleted(status_t err) {
717    Mutex::Autolock autoLock(mLock);
718
719    if (mState != STATE_PREPARING) {
720        // We were preparing asynchronously when the client called
721        // reset(), we sent a premature "prepared" notification and
722        // then initiated the reset. This notification is stale.
723        CHECK(mState == STATE_RESET_IN_PROGRESS || mState == STATE_IDLE);
724        return;
725    }
726
727    CHECK_EQ(mState, STATE_PREPARING);
728
729    mAsyncResult = err;
730
731    if (err == OK) {
732        // update state before notifying client, so that if client calls back into NuPlayerDriver
733        // in response, NuPlayerDriver has the right state
734        mState = STATE_PREPARED;
735        if (mIsAsyncPrepare) {
736            notifyListener_l(MEDIA_PREPARED);
737        }
738    } else {
739        mState = STATE_UNPREPARED;
740        if (mIsAsyncPrepare) {
741            notifyListener_l(MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, err);
742        }
743    }
744
745    sp<MetaData> meta = mPlayer->getFileMeta();
746    int32_t loop;
747    if (meta != NULL
748            && meta->findInt32(kKeyAutoLoop, &loop) && loop != 0) {
749        mAutoLoop = true;
750    }
751
752    mCondition.broadcast();
753}
754
755void NuPlayerDriver::notifyFlagsChanged(uint32_t flags) {
756    Mutex::Autolock autoLock(mLock);
757
758    mPlayerFlags = flags;
759}
760
761void NuPlayerDriver::setPauseStartedTimeIfNeeded() {
762    if (mPauseStartedTimeUs == -1) {
763        mPauseStartedTimeUs = ALooper::GetNowUs();
764    }
765}
766
767}  // namespace android
768