NuPlayerDriver.cpp revision afcb794a3d837764f0e1ce036796b4f1c5202190 
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      mDurationUs(-1),
38      mPositionUs(-1),
39      mNumFramesTotal(0),
40      mNumFramesDropped(0),
41      mLooper(new ALooper),
42      mPlayerFlags(0),
43      mAtEOS(false),
44      mLooping(false),
45      mStartupSeekTimeUs(-1) {
46    mLooper->setName("NuPlayerDriver Looper");
47
48    mLooper->start(
49            false, /* runOnCallingThread */
50            true,  /* canCallJava */
51            PRIORITY_AUDIO);
52
53    mPlayer = new NuPlayer;
54    mLooper->registerHandler(mPlayer);
55
56    mPlayer->setDriver(this);
57}
58
59NuPlayerDriver::~NuPlayerDriver() {
60    mLooper->stop();
61}
62
63status_t NuPlayerDriver::initCheck() {
64    return OK;
65}
66
67status_t NuPlayerDriver::setUID(uid_t uid) {
68    mPlayer->setUID(uid);
69
70    return OK;
71}
72
73status_t NuPlayerDriver::setDataSource(
74        const sp<IMediaHTTPService> &httpService,
75        const char *url,
76        const KeyedVector<String8, String8> *headers) {
77    Mutex::Autolock autoLock(mLock);
78
79    ALOGV("setDataSource: url=%s", url);
80    if (mState != STATE_IDLE) {
81        return INVALID_OPERATION;
82    }
83
84    mState = STATE_SET_DATASOURCE_PENDING;
85
86    mPlayer->setDataSourceAsync(httpService, url, headers);
87
88    while (mState == STATE_SET_DATASOURCE_PENDING) {
89        mCondition.wait(mLock);
90    }
91
92    return mAsyncResult;
93}
94
95status_t NuPlayerDriver::setDataSource(int fd, int64_t offset, int64_t length) {
96    Mutex::Autolock autoLock(mLock);
97
98    ALOGV("setDataSource: fd=%d", fd);
99    if (mState != STATE_IDLE) {
100        return INVALID_OPERATION;
101    }
102
103    mState = STATE_SET_DATASOURCE_PENDING;
104
105    mPlayer->setDataSourceAsync(fd, offset, length);
106
107    while (mState == STATE_SET_DATASOURCE_PENDING) {
108        mCondition.wait(mLock);
109    }
110
111    return mAsyncResult;
112}
113
114status_t NuPlayerDriver::setDataSource(const sp<IStreamSource> &source) {
115    Mutex::Autolock autoLock(mLock);
116
117    ALOGV("setDataSource: stream source");
118    if (mState != STATE_IDLE) {
119        return INVALID_OPERATION;
120    }
121
122    mState = STATE_SET_DATASOURCE_PENDING;
123
124    mPlayer->setDataSourceAsync(source);
125
126    while (mState == STATE_SET_DATASOURCE_PENDING) {
127        mCondition.wait(mLock);
128    }
129
130    return mAsyncResult;
131}
132
133status_t NuPlayerDriver::setVideoSurfaceTexture(
134        const sp<IGraphicBufferProducer> &bufferProducer) {
135    Mutex::Autolock autoLock(mLock);
136
137    switch (mState) {
138        case STATE_SET_DATASOURCE_PENDING:
139        case STATE_RESET_IN_PROGRESS:
140            return INVALID_OPERATION;
141
142        default:
143            break;
144    }
145
146    mPlayer->setVideoSurfaceTextureAsync(bufferProducer);
147
148    return OK;
149}
150
151status_t NuPlayerDriver::prepare() {
152    Mutex::Autolock autoLock(mLock);
153    return prepare_l();
154}
155
156status_t NuPlayerDriver::prepare_l() {
157    switch (mState) {
158        case STATE_UNPREPARED:
159            mState = STATE_PREPARING;
160
161            // Make sure we're not posting any notifications, success or
162            // failure information is only communicated through our result
163            // code.
164            mIsAsyncPrepare = false;
165            mPlayer->prepareAsync();
166            while (mState == STATE_PREPARING) {
167                mCondition.wait(mLock);
168            }
169            return (mState == STATE_PREPARED) ? OK : UNKNOWN_ERROR;
170        case STATE_STOPPED:
171            // this is really just paused. handle as seek to start
172            mAtEOS = false;
173            mState = STATE_STOPPED_AND_PREPARING;
174            mIsAsyncPrepare = false;
175            mPlayer->seekToAsync(0);
176            while (mState == STATE_STOPPED_AND_PREPARING) {
177                mCondition.wait(mLock);
178            }
179            return (mState == STATE_STOPPED_AND_PREPARED) ? OK : UNKNOWN_ERROR;
180        default:
181            return INVALID_OPERATION;
182    };
183}
184
185status_t NuPlayerDriver::prepareAsync() {
186    Mutex::Autolock autoLock(mLock);
187
188    switch (mState) {
189        case STATE_UNPREPARED:
190            mState = STATE_PREPARING;
191            mIsAsyncPrepare = true;
192            mPlayer->prepareAsync();
193            return OK;
194        case STATE_STOPPED:
195            // this is really just paused. handle as seek to start
196            mAtEOS = false;
197            mState = STATE_STOPPED_AND_PREPARING;
198            mIsAsyncPrepare = true;
199            mPlayer->seekToAsync(0);
200            return OK;
201        default:
202            return INVALID_OPERATION;
203    };
204}
205
206status_t NuPlayerDriver::start() {
207    Mutex::Autolock autoLock(mLock);
208
209    switch (mState) {
210        case STATE_UNPREPARED:
211        {
212            status_t err = prepare_l();
213
214            if (err != OK) {
215                return err;
216            }
217
218            CHECK_EQ(mState, STATE_PREPARED);
219
220            // fall through
221        }
222
223        case STATE_PREPARED:
224        {
225            mAtEOS = false;
226            mPlayer->start();
227
228            if (mStartupSeekTimeUs >= 0) {
229                if (mStartupSeekTimeUs == 0) {
230                    notifySeekComplete_l();
231                } else {
232                    mPlayer->seekToAsync(mStartupSeekTimeUs);
233                }
234
235                mStartupSeekTimeUs = -1;
236            }
237            break;
238        }
239
240        case STATE_RUNNING:
241            break;
242
243        case STATE_PAUSED:
244        case STATE_STOPPED_AND_PREPARED:
245        {
246            mPlayer->resume();
247            break;
248        }
249
250        default:
251            return INVALID_OPERATION;
252    }
253
254    mState = STATE_RUNNING;
255
256    return OK;
257}
258
259status_t NuPlayerDriver::stop() {
260    Mutex::Autolock autoLock(mLock);
261
262    switch (mState) {
263        case STATE_RUNNING:
264            mPlayer->pause();
265            // fall through
266
267        case STATE_PAUSED:
268            notifyListener(MEDIA_STOPPED);
269            // fall through
270
271        case STATE_PREPARED:
272        case STATE_STOPPED:
273        case STATE_STOPPED_AND_PREPARING:
274        case STATE_STOPPED_AND_PREPARED:
275            mState = STATE_STOPPED;
276            break;
277
278        default:
279            return INVALID_OPERATION;
280    }
281
282    return OK;
283}
284
285status_t NuPlayerDriver::pause() {
286    Mutex::Autolock autoLock(mLock);
287
288    switch (mState) {
289        case STATE_PAUSED:
290        case STATE_PREPARED:
291            return OK;
292
293        case STATE_RUNNING:
294            notifyListener(MEDIA_PAUSED);
295            mPlayer->pause();
296            break;
297
298        default:
299            return INVALID_OPERATION;
300    }
301
302    mState = STATE_PAUSED;
303
304    return OK;
305}
306
307bool NuPlayerDriver::isPlaying() {
308    return mState == STATE_RUNNING && !mAtEOS;
309}
310
311status_t NuPlayerDriver::seekTo(int msec) {
312    Mutex::Autolock autoLock(mLock);
313
314    int64_t seekTimeUs = msec * 1000ll;
315
316    switch (mState) {
317        case STATE_PREPARED:
318        {
319            mStartupSeekTimeUs = seekTimeUs;
320            // pretend that the seek completed. It will actually happen when starting playback.
321            // TODO: actually perform the seek here, so the player is ready to go at the new
322            // location
323            notifySeekComplete_l();
324            break;
325        }
326
327        case STATE_RUNNING:
328        case STATE_PAUSED:
329        {
330            mAtEOS = false;
331            // seeks can take a while, so we essentially paused
332            notifyListener(MEDIA_PAUSED);
333            mPlayer->seekToAsync(seekTimeUs);
334            break;
335        }
336
337        default:
338            return INVALID_OPERATION;
339    }
340
341    return OK;
342}
343
344status_t NuPlayerDriver::getCurrentPosition(int *msec) {
345    Mutex::Autolock autoLock(mLock);
346
347    if (mPositionUs < 0) {
348        *msec = 0;
349    } else {
350        *msec = (mPositionUs + 500ll) / 1000;
351    }
352
353    return OK;
354}
355
356status_t NuPlayerDriver::getDuration(int *msec) {
357    Mutex::Autolock autoLock(mLock);
358
359    if (mDurationUs < 0) {
360        return UNKNOWN_ERROR;
361    }
362
363    *msec = (mDurationUs + 500ll) / 1000;
364
365    return OK;
366}
367
368status_t NuPlayerDriver::reset() {
369    Mutex::Autolock autoLock(mLock);
370
371    switch (mState) {
372        case STATE_IDLE:
373            return OK;
374
375        case STATE_SET_DATASOURCE_PENDING:
376        case STATE_RESET_IN_PROGRESS:
377            return INVALID_OPERATION;
378
379        case STATE_PREPARING:
380        {
381            CHECK(mIsAsyncPrepare);
382
383            notifyListener(MEDIA_PREPARED);
384            break;
385        }
386
387        default:
388            break;
389    }
390
391    if (mState != STATE_STOPPED) {
392        notifyListener(MEDIA_STOPPED);
393    }
394
395    mState = STATE_RESET_IN_PROGRESS;
396    mPlayer->resetAsync();
397
398    while (mState == STATE_RESET_IN_PROGRESS) {
399        mCondition.wait(mLock);
400    }
401
402    mDurationUs = -1;
403    mPositionUs = -1;
404    mStartupSeekTimeUs = -1;
405    mLooping = false;
406
407    return OK;
408}
409
410status_t NuPlayerDriver::setLooping(int loop) {
411    mLooping = loop != 0;
412    return OK;
413}
414
415player_type NuPlayerDriver::playerType() {
416    return NU_PLAYER;
417}
418
419status_t NuPlayerDriver::invoke(const Parcel &request, Parcel *reply) {
420    if (reply == NULL) {
421        ALOGE("reply is a NULL pointer");
422        return BAD_VALUE;
423    }
424
425    int32_t methodId;
426    status_t ret = request.readInt32(&methodId);
427    if (ret != OK) {
428        ALOGE("Failed to retrieve the requested method to invoke");
429        return ret;
430    }
431
432    switch (methodId) {
433        case INVOKE_ID_SET_VIDEO_SCALING_MODE:
434        {
435            int mode = request.readInt32();
436            return mPlayer->setVideoScalingMode(mode);
437        }
438
439        case INVOKE_ID_GET_TRACK_INFO:
440        {
441            return mPlayer->getTrackInfo(reply);
442        }
443
444        case INVOKE_ID_SELECT_TRACK:
445        {
446            int trackIndex = request.readInt32();
447            return mPlayer->selectTrack(trackIndex, true /* select */);
448        }
449
450        case INVOKE_ID_UNSELECT_TRACK:
451        {
452            int trackIndex = request.readInt32();
453            return mPlayer->selectTrack(trackIndex, false /* select */);
454        }
455
456        case INVOKE_ID_GET_SELECTED_TRACK:
457        {
458            int32_t type = request.readInt32();
459            return mPlayer->getSelectedTrack(type, reply);
460        }
461
462        default:
463        {
464            return INVALID_OPERATION;
465        }
466    }
467}
468
469void NuPlayerDriver::setAudioSink(const sp<AudioSink> &audioSink) {
470    mPlayer->setAudioSink(audioSink);
471}
472
473status_t NuPlayerDriver::setParameter(
474        int /* key */, const Parcel & /* request */) {
475    return INVALID_OPERATION;
476}
477
478status_t NuPlayerDriver::getParameter(int /* key */, Parcel * /* reply */) {
479    return INVALID_OPERATION;
480}
481
482status_t NuPlayerDriver::getMetadata(
483        const media::Metadata::Filter& /* ids */, Parcel *records) {
484    Mutex::Autolock autoLock(mLock);
485
486    using media::Metadata;
487
488    Metadata meta(records);
489
490    meta.appendBool(
491            Metadata::kPauseAvailable,
492            mPlayerFlags & NuPlayer::Source::FLAG_CAN_PAUSE);
493
494    meta.appendBool(
495            Metadata::kSeekBackwardAvailable,
496            mPlayerFlags & NuPlayer::Source::FLAG_CAN_SEEK_BACKWARD);
497
498    meta.appendBool(
499            Metadata::kSeekForwardAvailable,
500            mPlayerFlags & NuPlayer::Source::FLAG_CAN_SEEK_FORWARD);
501
502    meta.appendBool(
503            Metadata::kSeekAvailable,
504            mPlayerFlags & NuPlayer::Source::FLAG_CAN_SEEK);
505
506    return OK;
507}
508
509void NuPlayerDriver::notifyResetComplete() {
510    Mutex::Autolock autoLock(mLock);
511
512    CHECK_EQ(mState, STATE_RESET_IN_PROGRESS);
513    mState = STATE_IDLE;
514    mCondition.broadcast();
515}
516
517void NuPlayerDriver::notifyDuration(int64_t durationUs) {
518    Mutex::Autolock autoLock(mLock);
519    mDurationUs = durationUs;
520}
521
522void NuPlayerDriver::notifyPosition(int64_t positionUs) {
523    Mutex::Autolock autoLock(mLock);
524    mPositionUs = positionUs;
525}
526
527void NuPlayerDriver::notifySeekComplete() {
528    Mutex::Autolock autoLock(mLock);
529    notifySeekComplete_l();
530}
531
532void NuPlayerDriver::notifySeekComplete_l() {
533    bool wasSeeking = true;
534    if (mState == STATE_STOPPED_AND_PREPARING) {
535        wasSeeking = false;
536        mState = STATE_STOPPED_AND_PREPARED;
537        mCondition.broadcast();
538        if (!mIsAsyncPrepare) {
539            // if we are preparing synchronously, no need to notify listener
540            return;
541        }
542    } else if (mState == STATE_STOPPED) {
543        // no need to notify listener
544        return;
545    }
546    // note: notifyListener called with lock released
547    mLock.unlock();
548    notifyListener(wasSeeking ? MEDIA_SEEK_COMPLETE : MEDIA_PREPARED);
549    mLock.lock();
550}
551
552void NuPlayerDriver::notifyFrameStats(
553        int64_t numFramesTotal, int64_t numFramesDropped) {
554    Mutex::Autolock autoLock(mLock);
555    mNumFramesTotal = numFramesTotal;
556    mNumFramesDropped = numFramesDropped;
557}
558
559status_t NuPlayerDriver::dump(
560        int fd, const Vector<String16> & /* args */) const {
561    Mutex::Autolock autoLock(mLock);
562
563    FILE *out = fdopen(dup(fd), "w");
564
565    fprintf(out, " NuPlayer\n");
566    fprintf(out, "  numFramesTotal(%" PRId64 "), numFramesDropped(%" PRId64 "), "
567                 "percentageDropped(%.2f)\n",
568                 mNumFramesTotal,
569                 mNumFramesDropped,
570                 mNumFramesTotal == 0
571                    ? 0.0 : (double)mNumFramesDropped / mNumFramesTotal);
572
573    fclose(out);
574    out = NULL;
575
576    return OK;
577}
578
579void NuPlayerDriver::notifyListener(
580        int msg, int ext1, int ext2, const Parcel *in) {
581    switch (msg) {
582        case MEDIA_PLAYBACK_COMPLETE:
583        {
584            if (mLooping) {
585                mPlayer->seekToAsync(0);
586                break;
587            }
588            // fall through
589        }
590
591        case MEDIA_ERROR:
592        {
593            mAtEOS = true;
594            break;
595        }
596
597        default:
598            break;
599    }
600
601    sendEvent(msg, ext1, ext2, in);
602}
603
604void NuPlayerDriver::notifySetDataSourceCompleted(status_t err) {
605    Mutex::Autolock autoLock(mLock);
606
607    CHECK_EQ(mState, STATE_SET_DATASOURCE_PENDING);
608
609    mAsyncResult = err;
610    mState = (err == OK) ? STATE_UNPREPARED : STATE_IDLE;
611    mCondition.broadcast();
612}
613
614void NuPlayerDriver::notifyPrepareCompleted(status_t err) {
615    Mutex::Autolock autoLock(mLock);
616
617    if (mState != STATE_PREPARING) {
618        // We were preparing asynchronously when the client called
619        // reset(), we sent a premature "prepared" notification and
620        // then initiated the reset. This notification is stale.
621        CHECK(mState == STATE_RESET_IN_PROGRESS || mState == STATE_IDLE);
622        return;
623    }
624
625    CHECK_EQ(mState, STATE_PREPARING);
626
627    mAsyncResult = err;
628
629    if (err == OK) {
630        if (mIsAsyncPrepare) {
631            notifyListener(MEDIA_PREPARED);
632        }
633        mState = STATE_PREPARED;
634    } else {
635        if (mIsAsyncPrepare) {
636            notifyListener(MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, err);
637        }
638        mState = STATE_UNPREPARED;
639    }
640
641    mCondition.broadcast();
642}
643
644void NuPlayerDriver::notifyFlagsChanged(uint32_t flags) {
645    Mutex::Autolock autoLock(mLock);
646
647    mPlayerFlags = flags;
648}
649
650}  // namespace android
651