MediaPlayerService.cpp revision a23456b306f35b9ecf973bf5818ca39295e9e029 
1/*
2**
3** Copyright 2008, The Android Open Source Project
4**
5** Licensed under the Apache License, Version 2.0 (the "License");
6** you may not use this file except in compliance with the License.
7** You may obtain a copy of the License at
8**
9**     http://www.apache.org/licenses/LICENSE-2.0
10**
11** Unless required by applicable law or agreed to in writing, software
12** distributed under the License is distributed on an "AS IS" BASIS,
13** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14** See the License for the specific language governing permissions and
15** limitations under the License.
16*/
17
18// Proxy for media player implementations
19
20//#define LOG_NDEBUG 0
21#define LOG_TAG "MediaPlayerService"
22#include <utils/Log.h>
23
24#include <sys/types.h>
25#include <sys/stat.h>
26#include <sys/time.h>
27#include <dirent.h>
28#include <unistd.h>
29
30#include <string.h>
31
32#include <cutils/atomic.h>
33#include <cutils/properties.h> // for property_get
34
35#include <utils/misc.h>
36
37#include <android_runtime/ActivityManager.h>
38
39#include <binder/IPCThreadState.h>
40#include <binder/IServiceManager.h>
41#include <binder/MemoryHeapBase.h>
42#include <binder/MemoryBase.h>
43#include <utils/Errors.h>  // for status_t
44#include <utils/String8.h>
45#include <utils/SystemClock.h>
46#include <utils/Vector.h>
47#include <cutils/properties.h>
48
49#include <media/MediaPlayerInterface.h>
50#include <media/mediarecorder.h>
51#include <media/MediaMetadataRetrieverInterface.h>
52#include <media/Metadata.h>
53#include <media/AudioTrack.h>
54#include <media/MemoryLeakTrackUtil.h>
55
56#include <system/audio.h>
57
58#include <private/android_filesystem_config.h>
59
60#include "MediaRecorderClient.h"
61#include "MediaPlayerService.h"
62#include "MetadataRetrieverClient.h"
63
64#include "MidiFile.h"
65#include "TestPlayerStub.h"
66#include "StagefrightPlayer.h"
67#include "nuplayer/NuPlayerDriver.h"
68
69#include <OMX.h>
70
71namespace {
72using android::media::Metadata;
73using android::status_t;
74using android::OK;
75using android::BAD_VALUE;
76using android::NOT_ENOUGH_DATA;
77using android::Parcel;
78
79// Max number of entries in the filter.
80const int kMaxFilterSize = 64;  // I pulled that out of thin air.
81
82// FIXME: Move all the metadata related function in the Metadata.cpp
83
84
85// Unmarshall a filter from a Parcel.
86// Filter format in a parcel:
87//
88//  0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
89// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
90// |                       number of entries (n)                   |
91// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
92// |                       metadata type 1                         |
93// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
94// |                       metadata type 2                         |
95// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
96//  ....
97// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
98// |                       metadata type n                         |
99// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
100//
101// @param p Parcel that should start with a filter.
102// @param[out] filter On exit contains the list of metadata type to be
103//                    filtered.
104// @param[out] status On exit contains the status code to be returned.
105// @return true if the parcel starts with a valid filter.
106bool unmarshallFilter(const Parcel& p,
107                      Metadata::Filter *filter,
108                      status_t *status)
109{
110    int32_t val;
111    if (p.readInt32(&val) != OK)
112    {
113        LOGE("Failed to read filter's length");
114        *status = NOT_ENOUGH_DATA;
115        return false;
116    }
117
118    if( val > kMaxFilterSize || val < 0)
119    {
120        LOGE("Invalid filter len %d", val);
121        *status = BAD_VALUE;
122        return false;
123    }
124
125    const size_t num = val;
126
127    filter->clear();
128    filter->setCapacity(num);
129
130    size_t size = num * sizeof(Metadata::Type);
131
132
133    if (p.dataAvail() < size)
134    {
135        LOGE("Filter too short expected %d but got %d", size, p.dataAvail());
136        *status = NOT_ENOUGH_DATA;
137        return false;
138    }
139
140    const Metadata::Type *data =
141            static_cast<const Metadata::Type*>(p.readInplace(size));
142
143    if (NULL == data)
144    {
145        LOGE("Filter had no data");
146        *status = BAD_VALUE;
147        return false;
148    }
149
150    // TODO: The stl impl of vector would be more efficient here
151    // because it degenerates into a memcpy on pod types. Try to
152    // replace later or use stl::set.
153    for (size_t i = 0; i < num; ++i)
154    {
155        filter->add(*data);
156        ++data;
157    }
158    *status = OK;
159    return true;
160}
161
162// @param filter Of metadata type.
163// @param val To be searched.
164// @return true if a match was found.
165bool findMetadata(const Metadata::Filter& filter, const int32_t val)
166{
167    // Deal with empty and ANY right away
168    if (filter.isEmpty()) return false;
169    if (filter[0] == Metadata::kAny) return true;
170
171    return filter.indexOf(val) >= 0;
172}
173
174}  // anonymous namespace
175
176
177namespace android {
178
179// TODO: Temp hack until we can register players
180typedef struct {
181    const char *extension;
182    const player_type playertype;
183} extmap;
184extmap FILE_EXTS [] =  {
185        {".mid", SONIVOX_PLAYER},
186        {".midi", SONIVOX_PLAYER},
187        {".smf", SONIVOX_PLAYER},
188        {".xmf", SONIVOX_PLAYER},
189        {".imy", SONIVOX_PLAYER},
190        {".rtttl", SONIVOX_PLAYER},
191        {".rtx", SONIVOX_PLAYER},
192        {".ota", SONIVOX_PLAYER},
193};
194
195// TODO: Find real cause of Audio/Video delay in PV framework and remove this workaround
196/* static */ int MediaPlayerService::AudioOutput::mMinBufferCount = 4;
197/* static */ bool MediaPlayerService::AudioOutput::mIsOnEmulator = false;
198
199void MediaPlayerService::instantiate() {
200    defaultServiceManager()->addService(
201            String16("media.player"), new MediaPlayerService());
202}
203
204MediaPlayerService::MediaPlayerService()
205{
206    LOGV("MediaPlayerService created");
207    mNextConnId = 1;
208
209    mBatteryAudio.refCount = 0;
210    for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
211        mBatteryAudio.deviceOn[i] = 0;
212        mBatteryAudio.lastTime[i] = 0;
213        mBatteryAudio.totalTime[i] = 0;
214    }
215    // speaker is on by default
216    mBatteryAudio.deviceOn[SPEAKER] = 1;
217}
218
219MediaPlayerService::~MediaPlayerService()
220{
221    LOGV("MediaPlayerService destroyed");
222}
223
224sp<IMediaRecorder> MediaPlayerService::createMediaRecorder(pid_t pid)
225{
226    sp<MediaRecorderClient> recorder = new MediaRecorderClient(this, pid);
227    wp<MediaRecorderClient> w = recorder;
228    Mutex::Autolock lock(mLock);
229    mMediaRecorderClients.add(w);
230    LOGV("Create new media recorder client from pid %d", pid);
231    return recorder;
232}
233
234void MediaPlayerService::removeMediaRecorderClient(wp<MediaRecorderClient> client)
235{
236    Mutex::Autolock lock(mLock);
237    mMediaRecorderClients.remove(client);
238    LOGV("Delete media recorder client");
239}
240
241sp<IMediaMetadataRetriever> MediaPlayerService::createMetadataRetriever(pid_t pid)
242{
243    sp<MetadataRetrieverClient> retriever = new MetadataRetrieverClient(pid);
244    LOGV("Create new media retriever from pid %d", pid);
245    return retriever;
246}
247
248sp<IMediaPlayer> MediaPlayerService::create(
249        pid_t pid, const sp<IMediaPlayerClient>& client, const char* url,
250        const KeyedVector<String8, String8> *headers, int audioSessionId)
251{
252    int32_t connId = android_atomic_inc(&mNextConnId);
253
254    sp<Client> c = new Client(
255            this, pid, connId, client, audioSessionId,
256            IPCThreadState::self()->getCallingUid());
257
258    LOGV("Create new client(%d) from pid %d, uid %d, url=%s, connId=%d, audioSessionId=%d",
259            connId, pid, IPCThreadState::self()->getCallingUid(), url, connId, audioSessionId);
260    if (NO_ERROR != c->setDataSource(url, headers))
261    {
262        c.clear();
263        return c;
264    }
265    wp<Client> w = c;
266    Mutex::Autolock lock(mLock);
267    mClients.add(w);
268    return c;
269}
270
271sp<IMediaPlayer> MediaPlayerService::create(pid_t pid, const sp<IMediaPlayerClient>& client,
272        int fd, int64_t offset, int64_t length, int audioSessionId)
273{
274    int32_t connId = android_atomic_inc(&mNextConnId);
275
276    sp<Client> c = new Client(
277            this, pid, connId, client, audioSessionId,
278            IPCThreadState::self()->getCallingUid());
279
280    LOGV("Create new client(%d) from pid %d, uid %d, fd=%d, offset=%lld, "
281         "length=%lld, audioSessionId=%d", connId, pid,
282         IPCThreadState::self()->getCallingUid(), fd, offset, length, audioSessionId);
283    if (NO_ERROR != c->setDataSource(fd, offset, length)) {
284        c.clear();
285    } else {
286        wp<Client> w = c;
287        Mutex::Autolock lock(mLock);
288        mClients.add(w);
289    }
290    ::close(fd);
291    return c;
292}
293
294sp<IMediaPlayer> MediaPlayerService::create(
295        pid_t pid, const sp<IMediaPlayerClient> &client,
296        const sp<IStreamSource> &source, int audioSessionId) {
297    int32_t connId = android_atomic_inc(&mNextConnId);
298
299    sp<Client> c = new Client(
300            this, pid, connId, client, audioSessionId,
301            IPCThreadState::self()->getCallingUid());
302
303    LOGV("Create new client(%d) from pid %d, audioSessionId=%d",
304         connId, pid, audioSessionId);
305
306    if (OK != c->setDataSource(source)) {
307        c.clear();
308    } else {
309        wp<Client> w = c;
310        Mutex::Autolock lock(mLock);
311        mClients.add(w);
312    }
313
314    return c;
315}
316
317sp<IOMX> MediaPlayerService::getOMX() {
318    Mutex::Autolock autoLock(mLock);
319
320    if (mOMX.get() == NULL) {
321        mOMX = new OMX;
322    }
323
324    return mOMX;
325}
326
327status_t MediaPlayerService::AudioCache::dump(int fd, const Vector<String16>& args) const
328{
329    const size_t SIZE = 256;
330    char buffer[SIZE];
331    String8 result;
332
333    result.append(" AudioCache\n");
334    if (mHeap != 0) {
335        snprintf(buffer, 255, "  heap base(%p), size(%d), flags(%d), device(%s)\n",
336                mHeap->getBase(), mHeap->getSize(), mHeap->getFlags(), mHeap->getDevice());
337        result.append(buffer);
338    }
339    snprintf(buffer, 255, "  msec per frame(%f), channel count(%d), format(%d), frame count(%ld)\n",
340            mMsecsPerFrame, mChannelCount, mFormat, mFrameCount);
341    result.append(buffer);
342    snprintf(buffer, 255, "  sample rate(%d), size(%d), error(%d), command complete(%s)\n",
343            mSampleRate, mSize, mError, mCommandComplete?"true":"false");
344    result.append(buffer);
345    ::write(fd, result.string(), result.size());
346    return NO_ERROR;
347}
348
349status_t MediaPlayerService::AudioOutput::dump(int fd, const Vector<String16>& args) const
350{
351    const size_t SIZE = 256;
352    char buffer[SIZE];
353    String8 result;
354
355    result.append(" AudioOutput\n");
356    snprintf(buffer, 255, "  stream type(%d), left - right volume(%f, %f)\n",
357            mStreamType, mLeftVolume, mRightVolume);
358    result.append(buffer);
359    snprintf(buffer, 255, "  msec per frame(%f), latency (%d)\n",
360            mMsecsPerFrame, mLatency);
361    result.append(buffer);
362    snprintf(buffer, 255, "  aux effect id(%d), send level (%f)\n",
363            mAuxEffectId, mSendLevel);
364    result.append(buffer);
365
366    ::write(fd, result.string(), result.size());
367    if (mTrack != 0) {
368        mTrack->dump(fd, args);
369    }
370    return NO_ERROR;
371}
372
373status_t MediaPlayerService::Client::dump(int fd, const Vector<String16>& args) const
374{
375    const size_t SIZE = 256;
376    char buffer[SIZE];
377    String8 result;
378    result.append(" Client\n");
379    snprintf(buffer, 255, "  pid(%d), connId(%d), status(%d), looping(%s)\n",
380            mPid, mConnId, mStatus, mLoop?"true": "false");
381    result.append(buffer);
382    write(fd, result.string(), result.size());
383    if (mPlayer != NULL) {
384        mPlayer->dump(fd, args);
385    }
386    if (mAudioOutput != 0) {
387        mAudioOutput->dump(fd, args);
388    }
389    write(fd, "\n", 1);
390    return NO_ERROR;
391}
392
393status_t MediaPlayerService::dump(int fd, const Vector<String16>& args)
394{
395    const size_t SIZE = 256;
396    char buffer[SIZE];
397    String8 result;
398    if (checkCallingPermission(String16("android.permission.DUMP")) == false) {
399        snprintf(buffer, SIZE, "Permission Denial: "
400                "can't dump MediaPlayerService from pid=%d, uid=%d\n",
401                IPCThreadState::self()->getCallingPid(),
402                IPCThreadState::self()->getCallingUid());
403        result.append(buffer);
404    } else {
405        Mutex::Autolock lock(mLock);
406        for (int i = 0, n = mClients.size(); i < n; ++i) {
407            sp<Client> c = mClients[i].promote();
408            if (c != 0) c->dump(fd, args);
409        }
410        if (mMediaRecorderClients.size() == 0) {
411                result.append(" No media recorder client\n\n");
412        } else {
413            for (int i = 0, n = mMediaRecorderClients.size(); i < n; ++i) {
414                sp<MediaRecorderClient> c = mMediaRecorderClients[i].promote();
415                snprintf(buffer, 255, " MediaRecorderClient pid(%d)\n", c->mPid);
416                result.append(buffer);
417                write(fd, result.string(), result.size());
418                result = "\n";
419                c->dump(fd, args);
420            }
421        }
422
423        result.append(" Files opened and/or mapped:\n");
424        snprintf(buffer, SIZE, "/proc/%d/maps", gettid());
425        FILE *f = fopen(buffer, "r");
426        if (f) {
427            while (!feof(f)) {
428                fgets(buffer, SIZE, f);
429                if (strstr(buffer, " /mnt/sdcard/") ||
430                    strstr(buffer, " /system/sounds/") ||
431                    strstr(buffer, " /data/") ||
432                    strstr(buffer, " /system/media/")) {
433                    result.append("  ");
434                    result.append(buffer);
435                }
436            }
437            fclose(f);
438        } else {
439            result.append("couldn't open ");
440            result.append(buffer);
441            result.append("\n");
442        }
443
444        snprintf(buffer, SIZE, "/proc/%d/fd", gettid());
445        DIR *d = opendir(buffer);
446        if (d) {
447            struct dirent *ent;
448            while((ent = readdir(d)) != NULL) {
449                if (strcmp(ent->d_name,".") && strcmp(ent->d_name,"..")) {
450                    snprintf(buffer, SIZE, "/proc/%d/fd/%s", gettid(), ent->d_name);
451                    struct stat s;
452                    if (lstat(buffer, &s) == 0) {
453                        if ((s.st_mode & S_IFMT) == S_IFLNK) {
454                            char linkto[256];
455                            int len = readlink(buffer, linkto, sizeof(linkto));
456                            if(len > 0) {
457                                if(len > 255) {
458                                    linkto[252] = '.';
459                                    linkto[253] = '.';
460                                    linkto[254] = '.';
461                                    linkto[255] = 0;
462                                } else {
463                                    linkto[len] = 0;
464                                }
465                                if (strstr(linkto, "/mnt/sdcard/") == linkto ||
466                                    strstr(linkto, "/system/sounds/") == linkto ||
467                                    strstr(linkto, "/data/") == linkto ||
468                                    strstr(linkto, "/system/media/") == linkto) {
469                                    result.append("  ");
470                                    result.append(buffer);
471                                    result.append(" -> ");
472                                    result.append(linkto);
473                                    result.append("\n");
474                                }
475                            }
476                        } else {
477                            result.append("  unexpected type for ");
478                            result.append(buffer);
479                            result.append("\n");
480                        }
481                    }
482                }
483            }
484            closedir(d);
485        } else {
486            result.append("couldn't open ");
487            result.append(buffer);
488            result.append("\n");
489        }
490
491        bool dumpMem = false;
492        for (size_t i = 0; i < args.size(); i++) {
493            if (args[i] == String16("-m")) {
494                dumpMem = true;
495            }
496        }
497        if (dumpMem) {
498            dumpMemoryAddresses(fd);
499        }
500    }
501    write(fd, result.string(), result.size());
502    return NO_ERROR;
503}
504
505void MediaPlayerService::removeClient(wp<Client> client)
506{
507    Mutex::Autolock lock(mLock);
508    mClients.remove(client);
509}
510
511MediaPlayerService::Client::Client(
512        const sp<MediaPlayerService>& service, pid_t pid,
513        int32_t connId, const sp<IMediaPlayerClient>& client,
514        int audioSessionId, uid_t uid)
515{
516    LOGV("Client(%d) constructor", connId);
517    mPid = pid;
518    mConnId = connId;
519    mService = service;
520    mClient = client;
521    mLoop = false;
522    mStatus = NO_INIT;
523    mAudioSessionId = audioSessionId;
524    mUID = uid;
525
526#if CALLBACK_ANTAGONIZER
527    LOGD("create Antagonizer");
528    mAntagonizer = new Antagonizer(notify, this);
529#endif
530}
531
532MediaPlayerService::Client::~Client()
533{
534    LOGV("Client(%d) destructor pid = %d", mConnId, mPid);
535    mAudioOutput.clear();
536    wp<Client> client(this);
537    disconnect();
538    mService->removeClient(client);
539}
540
541void MediaPlayerService::Client::disconnect()
542{
543    LOGV("disconnect(%d) from pid %d", mConnId, mPid);
544    // grab local reference and clear main reference to prevent future
545    // access to object
546    sp<MediaPlayerBase> p;
547    {
548        Mutex::Autolock l(mLock);
549        p = mPlayer;
550    }
551    mClient.clear();
552
553    mPlayer.clear();
554
555    // clear the notification to prevent callbacks to dead client
556    // and reset the player. We assume the player will serialize
557    // access to itself if necessary.
558    if (p != 0) {
559        p->setNotifyCallback(0, 0);
560#if CALLBACK_ANTAGONIZER
561        LOGD("kill Antagonizer");
562        mAntagonizer->kill();
563#endif
564        p->reset();
565    }
566
567    IPCThreadState::self()->flushCommands();
568}
569
570static player_type getDefaultPlayerType() {
571    return STAGEFRIGHT_PLAYER;
572}
573
574player_type getPlayerType(int fd, int64_t offset, int64_t length)
575{
576    char buf[20];
577    lseek(fd, offset, SEEK_SET);
578    read(fd, buf, sizeof(buf));
579    lseek(fd, offset, SEEK_SET);
580
581    long ident = *((long*)buf);
582
583    // Ogg vorbis?
584    if (ident == 0x5367674f) // 'OggS'
585        return STAGEFRIGHT_PLAYER;
586
587    // Some kind of MIDI?
588    EAS_DATA_HANDLE easdata;
589    if (EAS_Init(&easdata) == EAS_SUCCESS) {
590        EAS_FILE locator;
591        locator.path = NULL;
592        locator.fd = fd;
593        locator.offset = offset;
594        locator.length = length;
595        EAS_HANDLE  eashandle;
596        if (EAS_OpenFile(easdata, &locator, &eashandle) == EAS_SUCCESS) {
597            EAS_CloseFile(easdata, eashandle);
598            EAS_Shutdown(easdata);
599            return SONIVOX_PLAYER;
600        }
601        EAS_Shutdown(easdata);
602    }
603
604    return getDefaultPlayerType();
605}
606
607player_type getPlayerType(const char* url)
608{
609    if (TestPlayerStub::canBeUsed(url)) {
610        return TEST_PLAYER;
611    }
612
613    if (!strncasecmp("http://", url, 7)
614            || !strncasecmp("https://", url, 8)) {
615        size_t len = strlen(url);
616        if (len >= 5 && !strcasecmp(".m3u8", &url[len - 5])) {
617            return NU_PLAYER;
618        }
619
620        if (strstr(url,"m3u8")) {
621            return NU_PLAYER;
622        }
623    }
624
625    // use MidiFile for MIDI extensions
626    int lenURL = strlen(url);
627    for (int i = 0; i < NELEM(FILE_EXTS); ++i) {
628        int len = strlen(FILE_EXTS[i].extension);
629        int start = lenURL - len;
630        if (start > 0) {
631            if (!strncasecmp(url + start, FILE_EXTS[i].extension, len)) {
632                return FILE_EXTS[i].playertype;
633            }
634        }
635    }
636
637    return getDefaultPlayerType();
638}
639
640static sp<MediaPlayerBase> createPlayer(player_type playerType, void* cookie,
641        notify_callback_f notifyFunc)
642{
643    sp<MediaPlayerBase> p;
644    switch (playerType) {
645        case SONIVOX_PLAYER:
646            LOGV(" create MidiFile");
647            p = new MidiFile();
648            break;
649        case STAGEFRIGHT_PLAYER:
650            LOGV(" create StagefrightPlayer");
651            p = new StagefrightPlayer;
652            break;
653        case NU_PLAYER:
654            LOGV(" create NuPlayer");
655            p = new NuPlayerDriver;
656            break;
657        case TEST_PLAYER:
658            LOGV("Create Test Player stub");
659            p = new TestPlayerStub();
660            break;
661        default:
662            LOGE("Unknown player type: %d", playerType);
663            return NULL;
664    }
665    if (p != NULL) {
666        if (p->initCheck() == NO_ERROR) {
667            p->setNotifyCallback(cookie, notifyFunc);
668        } else {
669            p.clear();
670        }
671    }
672    if (p == NULL) {
673        LOGE("Failed to create player object");
674    }
675    return p;
676}
677
678sp<MediaPlayerBase> MediaPlayerService::Client::createPlayer(player_type playerType)
679{
680    // determine if we have the right player type
681    sp<MediaPlayerBase> p = mPlayer;
682    if ((p != NULL) && (p->playerType() != playerType)) {
683        LOGV("delete player");
684        p.clear();
685    }
686    if (p == NULL) {
687        p = android::createPlayer(playerType, this, notify);
688    }
689
690    p->setUID(mUID);
691
692    return p;
693}
694
695status_t MediaPlayerService::Client::setDataSource(
696        const char *url, const KeyedVector<String8, String8> *headers)
697{
698    LOGV("setDataSource(%s)", url);
699    if (url == NULL)
700        return UNKNOWN_ERROR;
701
702    if (strncmp(url, "content://", 10) == 0) {
703        // get a filedescriptor for the content Uri and
704        // pass it to the setDataSource(fd) method
705
706        String16 url16(url);
707        int fd = android::openContentProviderFile(url16);
708        if (fd < 0)
709        {
710            LOGE("Couldn't open fd for %s", url);
711            return UNKNOWN_ERROR;
712        }
713        setDataSource(fd, 0, 0x7fffffffffLL); // this sets mStatus
714        close(fd);
715        return mStatus;
716    } else {
717        player_type playerType = getPlayerType(url);
718        LOGV("player type = %d", playerType);
719
720        // create the right type of player
721        sp<MediaPlayerBase> p = createPlayer(playerType);
722        if (p == NULL) return NO_INIT;
723
724        if (!p->hardwareOutput()) {
725            mAudioOutput = new AudioOutput(mAudioSessionId);
726            static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput);
727        }
728
729        // now set data source
730        LOGV(" setDataSource");
731        mStatus = p->setDataSource(url, headers);
732        if (mStatus == NO_ERROR) {
733            mPlayer = p;
734        } else {
735            LOGE("  error: %d", mStatus);
736        }
737        return mStatus;
738    }
739}
740
741status_t MediaPlayerService::Client::setDataSource(int fd, int64_t offset, int64_t length)
742{
743    LOGV("setDataSource fd=%d, offset=%lld, length=%lld", fd, offset, length);
744    struct stat sb;
745    int ret = fstat(fd, &sb);
746    if (ret != 0) {
747        LOGE("fstat(%d) failed: %d, %s", fd, ret, strerror(errno));
748        return UNKNOWN_ERROR;
749    }
750
751    LOGV("st_dev  = %llu", sb.st_dev);
752    LOGV("st_mode = %u", sb.st_mode);
753    LOGV("st_uid  = %lu", sb.st_uid);
754    LOGV("st_gid  = %lu", sb.st_gid);
755    LOGV("st_size = %llu", sb.st_size);
756
757    if (offset >= sb.st_size) {
758        LOGE("offset error");
759        ::close(fd);
760        return UNKNOWN_ERROR;
761    }
762    if (offset + length > sb.st_size) {
763        length = sb.st_size - offset;
764        LOGV("calculated length = %lld", length);
765    }
766
767    player_type playerType = getPlayerType(fd, offset, length);
768    LOGV("player type = %d", playerType);
769
770    // create the right type of player
771    sp<MediaPlayerBase> p = createPlayer(playerType);
772    if (p == NULL) return NO_INIT;
773
774    if (!p->hardwareOutput()) {
775        mAudioOutput = new AudioOutput(mAudioSessionId);
776        static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput);
777    }
778
779    // now set data source
780    mStatus = p->setDataSource(fd, offset, length);
781    if (mStatus == NO_ERROR) mPlayer = p;
782    return mStatus;
783}
784
785status_t MediaPlayerService::Client::setDataSource(
786        const sp<IStreamSource> &source) {
787    // create the right type of player
788    sp<MediaPlayerBase> p = createPlayer(NU_PLAYER);
789
790    if (p == NULL) {
791        return NO_INIT;
792    }
793
794    if (!p->hardwareOutput()) {
795        mAudioOutput = new AudioOutput(mAudioSessionId);
796        static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput);
797    }
798
799    // now set data source
800    mStatus = p->setDataSource(source);
801
802    if (mStatus == OK) {
803        mPlayer = p;
804    }
805
806    return mStatus;
807}
808
809status_t MediaPlayerService::Client::setVideoSurface(const sp<Surface>& surface)
810{
811    LOGV("[%d] setVideoSurface(%p)", mConnId, surface.get());
812    sp<MediaPlayerBase> p = getPlayer();
813    if (p == 0) return UNKNOWN_ERROR;
814    return p->setVideoSurface(surface);
815}
816
817status_t MediaPlayerService::Client::setVideoSurfaceTexture(
818        const sp<ISurfaceTexture>& surfaceTexture)
819{
820    LOGV("[%d] setVideoSurfaceTexture(%p)", mConnId, surfaceTexture.get());
821    sp<MediaPlayerBase> p = getPlayer();
822    if (p == 0) return UNKNOWN_ERROR;
823    return p->setVideoSurfaceTexture(surfaceTexture);
824}
825
826status_t MediaPlayerService::Client::invoke(const Parcel& request,
827                                            Parcel *reply)
828{
829    sp<MediaPlayerBase> p = getPlayer();
830    if (p == NULL) return UNKNOWN_ERROR;
831    return p->invoke(request, reply);
832}
833
834// This call doesn't need to access the native player.
835status_t MediaPlayerService::Client::setMetadataFilter(const Parcel& filter)
836{
837    status_t status;
838    media::Metadata::Filter allow, drop;
839
840    if (unmarshallFilter(filter, &allow, &status) &&
841        unmarshallFilter(filter, &drop, &status)) {
842        Mutex::Autolock lock(mLock);
843
844        mMetadataAllow = allow;
845        mMetadataDrop = drop;
846    }
847    return status;
848}
849
850status_t MediaPlayerService::Client::getMetadata(
851        bool update_only, bool apply_filter, Parcel *reply)
852{
853    sp<MediaPlayerBase> player = getPlayer();
854    if (player == 0) return UNKNOWN_ERROR;
855
856    status_t status;
857    // Placeholder for the return code, updated by the caller.
858    reply->writeInt32(-1);
859
860    media::Metadata::Filter ids;
861
862    // We don't block notifications while we fetch the data. We clear
863    // mMetadataUpdated first so we don't lose notifications happening
864    // during the rest of this call.
865    {
866        Mutex::Autolock lock(mLock);
867        if (update_only) {
868            ids = mMetadataUpdated;
869        }
870        mMetadataUpdated.clear();
871    }
872
873    media::Metadata metadata(reply);
874
875    metadata.appendHeader();
876    status = player->getMetadata(ids, reply);
877
878    if (status != OK) {
879        metadata.resetParcel();
880        LOGE("getMetadata failed %d", status);
881        return status;
882    }
883
884    // FIXME: Implement filtering on the result. Not critical since
885    // filtering takes place on the update notifications already. This
886    // would be when all the metadata are fetch and a filter is set.
887
888    // Everything is fine, update the metadata length.
889    metadata.updateLength();
890    return OK;
891}
892
893status_t MediaPlayerService::Client::prepareAsync()
894{
895    LOGV("[%d] prepareAsync", mConnId);
896    sp<MediaPlayerBase> p = getPlayer();
897    if (p == 0) return UNKNOWN_ERROR;
898    status_t ret = p->prepareAsync();
899#if CALLBACK_ANTAGONIZER
900    LOGD("start Antagonizer");
901    if (ret == NO_ERROR) mAntagonizer->start();
902#endif
903    return ret;
904}
905
906status_t MediaPlayerService::Client::start()
907{
908    LOGV("[%d] start", mConnId);
909    sp<MediaPlayerBase> p = getPlayer();
910    if (p == 0) return UNKNOWN_ERROR;
911    p->setLooping(mLoop);
912    return p->start();
913}
914
915status_t MediaPlayerService::Client::stop()
916{
917    LOGV("[%d] stop", mConnId);
918    sp<MediaPlayerBase> p = getPlayer();
919    if (p == 0) return UNKNOWN_ERROR;
920    return p->stop();
921}
922
923status_t MediaPlayerService::Client::pause()
924{
925    LOGV("[%d] pause", mConnId);
926    sp<MediaPlayerBase> p = getPlayer();
927    if (p == 0) return UNKNOWN_ERROR;
928    return p->pause();
929}
930
931status_t MediaPlayerService::Client::isPlaying(bool* state)
932{
933    *state = false;
934    sp<MediaPlayerBase> p = getPlayer();
935    if (p == 0) return UNKNOWN_ERROR;
936    *state = p->isPlaying();
937    LOGV("[%d] isPlaying: %d", mConnId, *state);
938    return NO_ERROR;
939}
940
941status_t MediaPlayerService::Client::getCurrentPosition(int *msec)
942{
943    LOGV("getCurrentPosition");
944    sp<MediaPlayerBase> p = getPlayer();
945    if (p == 0) return UNKNOWN_ERROR;
946    status_t ret = p->getCurrentPosition(msec);
947    if (ret == NO_ERROR) {
948        LOGV("[%d] getCurrentPosition = %d", mConnId, *msec);
949    } else {
950        LOGE("getCurrentPosition returned %d", ret);
951    }
952    return ret;
953}
954
955status_t MediaPlayerService::Client::getDuration(int *msec)
956{
957    LOGV("getDuration");
958    sp<MediaPlayerBase> p = getPlayer();
959    if (p == 0) return UNKNOWN_ERROR;
960    status_t ret = p->getDuration(msec);
961    if (ret == NO_ERROR) {
962        LOGV("[%d] getDuration = %d", mConnId, *msec);
963    } else {
964        LOGE("getDuration returned %d", ret);
965    }
966    return ret;
967}
968
969status_t MediaPlayerService::Client::seekTo(int msec)
970{
971    LOGV("[%d] seekTo(%d)", mConnId, msec);
972    sp<MediaPlayerBase> p = getPlayer();
973    if (p == 0) return UNKNOWN_ERROR;
974    return p->seekTo(msec);
975}
976
977status_t MediaPlayerService::Client::reset()
978{
979    LOGV("[%d] reset", mConnId);
980    sp<MediaPlayerBase> p = getPlayer();
981    if (p == 0) return UNKNOWN_ERROR;
982    return p->reset();
983}
984
985status_t MediaPlayerService::Client::setAudioStreamType(int type)
986{
987    LOGV("[%d] setAudioStreamType(%d)", mConnId, type);
988    // TODO: for hardware output, call player instead
989    Mutex::Autolock l(mLock);
990    if (mAudioOutput != 0) mAudioOutput->setAudioStreamType(type);
991    return NO_ERROR;
992}
993
994status_t MediaPlayerService::Client::setLooping(int loop)
995{
996    LOGV("[%d] setLooping(%d)", mConnId, loop);
997    mLoop = loop;
998    sp<MediaPlayerBase> p = getPlayer();
999    if (p != 0) return p->setLooping(loop);
1000    return NO_ERROR;
1001}
1002
1003status_t MediaPlayerService::Client::setVolume(float leftVolume, float rightVolume)
1004{
1005    LOGV("[%d] setVolume(%f, %f)", mConnId, leftVolume, rightVolume);
1006    // TODO: for hardware output, call player instead
1007    Mutex::Autolock l(mLock);
1008    if (mAudioOutput != 0) mAudioOutput->setVolume(leftVolume, rightVolume);
1009    return NO_ERROR;
1010}
1011
1012status_t MediaPlayerService::Client::setAuxEffectSendLevel(float level)
1013{
1014    LOGV("[%d] setAuxEffectSendLevel(%f)", mConnId, level);
1015    Mutex::Autolock l(mLock);
1016    if (mAudioOutput != 0) return mAudioOutput->setAuxEffectSendLevel(level);
1017    return NO_ERROR;
1018}
1019
1020status_t MediaPlayerService::Client::attachAuxEffect(int effectId)
1021{
1022    LOGV("[%d] attachAuxEffect(%d)", mConnId, effectId);
1023    Mutex::Autolock l(mLock);
1024    if (mAudioOutput != 0) return mAudioOutput->attachAuxEffect(effectId);
1025    return NO_ERROR;
1026}
1027
1028status_t MediaPlayerService::Client::setParameter(int key, const Parcel &request) {
1029    LOGV("[%d] setParameter(%d)", mConnId, key);
1030    sp<MediaPlayerBase> p = getPlayer();
1031    if (p == 0) return UNKNOWN_ERROR;
1032    return p->setParameter(key, request);
1033}
1034
1035status_t MediaPlayerService::Client::getParameter(int key, Parcel *reply) {
1036    LOGV("[%d] getParameter(%d)", mConnId, key);
1037    sp<MediaPlayerBase> p = getPlayer();
1038    if (p == 0) return UNKNOWN_ERROR;
1039    return p->getParameter(key, reply);
1040}
1041
1042void MediaPlayerService::Client::notify(
1043        void* cookie, int msg, int ext1, int ext2, const Parcel *obj)
1044{
1045    Client* client = static_cast<Client*>(cookie);
1046
1047    if (MEDIA_INFO == msg &&
1048        MEDIA_INFO_METADATA_UPDATE == ext1) {
1049        const media::Metadata::Type metadata_type = ext2;
1050
1051        if(client->shouldDropMetadata(metadata_type)) {
1052            return;
1053        }
1054
1055        // Update the list of metadata that have changed. getMetadata
1056        // also access mMetadataUpdated and clears it.
1057        client->addNewMetadataUpdate(metadata_type);
1058    }
1059    LOGV("[%d] notify (%p, %d, %d, %d)", client->mConnId, cookie, msg, ext1, ext2);
1060    client->mClient->notify(msg, ext1, ext2, obj);
1061}
1062
1063
1064bool MediaPlayerService::Client::shouldDropMetadata(media::Metadata::Type code) const
1065{
1066    Mutex::Autolock lock(mLock);
1067
1068    if (findMetadata(mMetadataDrop, code)) {
1069        return true;
1070    }
1071
1072    if (mMetadataAllow.isEmpty() || findMetadata(mMetadataAllow, code)) {
1073        return false;
1074    } else {
1075        return true;
1076    }
1077}
1078
1079
1080void MediaPlayerService::Client::addNewMetadataUpdate(media::Metadata::Type metadata_type) {
1081    Mutex::Autolock lock(mLock);
1082    if (mMetadataUpdated.indexOf(metadata_type) < 0) {
1083        mMetadataUpdated.add(metadata_type);
1084    }
1085}
1086
1087#if CALLBACK_ANTAGONIZER
1088const int Antagonizer::interval = 10000; // 10 msecs
1089
1090Antagonizer::Antagonizer(notify_callback_f cb, void* client) :
1091    mExit(false), mActive(false), mClient(client), mCb(cb)
1092{
1093    createThread(callbackThread, this);
1094}
1095
1096void Antagonizer::kill()
1097{
1098    Mutex::Autolock _l(mLock);
1099    mActive = false;
1100    mExit = true;
1101    mCondition.wait(mLock);
1102}
1103
1104int Antagonizer::callbackThread(void* user)
1105{
1106    LOGD("Antagonizer started");
1107    Antagonizer* p = reinterpret_cast<Antagonizer*>(user);
1108    while (!p->mExit) {
1109        if (p->mActive) {
1110            LOGV("send event");
1111            p->mCb(p->mClient, 0, 0, 0);
1112        }
1113        usleep(interval);
1114    }
1115    Mutex::Autolock _l(p->mLock);
1116    p->mCondition.signal();
1117    LOGD("Antagonizer stopped");
1118    return 0;
1119}
1120#endif
1121
1122static size_t kDefaultHeapSize = 1024 * 1024; // 1MB
1123
1124sp<IMemory> MediaPlayerService::decode(const char* url, uint32_t *pSampleRate, int* pNumChannels, int* pFormat)
1125{
1126    LOGV("decode(%s)", url);
1127    sp<MemoryBase> mem;
1128    sp<MediaPlayerBase> player;
1129
1130    // Protect our precious, precious DRMd ringtones by only allowing
1131    // decoding of http, but not filesystem paths or content Uris.
1132    // If the application wants to decode those, it should open a
1133    // filedescriptor for them and use that.
1134    if (url != NULL && strncmp(url, "http://", 7) != 0) {
1135        LOGD("Can't decode %s by path, use filedescriptor instead", url);
1136        return mem;
1137    }
1138
1139    player_type playerType = getPlayerType(url);
1140    LOGV("player type = %d", playerType);
1141
1142    // create the right type of player
1143    sp<AudioCache> cache = new AudioCache(url);
1144    player = android::createPlayer(playerType, cache.get(), cache->notify);
1145    if (player == NULL) goto Exit;
1146    if (player->hardwareOutput()) goto Exit;
1147
1148    static_cast<MediaPlayerInterface*>(player.get())->setAudioSink(cache);
1149
1150    // set data source
1151    if (player->setDataSource(url) != NO_ERROR) goto Exit;
1152
1153    LOGV("prepare");
1154    player->prepareAsync();
1155
1156    LOGV("wait for prepare");
1157    if (cache->wait() != NO_ERROR) goto Exit;
1158
1159    LOGV("start");
1160    player->start();
1161
1162    LOGV("wait for playback complete");
1163    if (cache->wait() != NO_ERROR) goto Exit;
1164
1165    mem = new MemoryBase(cache->getHeap(), 0, cache->size());
1166    *pSampleRate = cache->sampleRate();
1167    *pNumChannels = cache->channelCount();
1168    *pFormat = (int)cache->format();
1169    LOGV("return memory @ %p, sampleRate=%u, channelCount = %d, format = %d", mem->pointer(), *pSampleRate, *pNumChannels, *pFormat);
1170
1171Exit:
1172    if (player != 0) player->reset();
1173    return mem;
1174}
1175
1176sp<IMemory> MediaPlayerService::decode(int fd, int64_t offset, int64_t length, uint32_t *pSampleRate, int* pNumChannels, int* pFormat)
1177{
1178    LOGV("decode(%d, %lld, %lld)", fd, offset, length);
1179    sp<MemoryBase> mem;
1180    sp<MediaPlayerBase> player;
1181
1182    player_type playerType = getPlayerType(fd, offset, length);
1183    LOGV("player type = %d", playerType);
1184
1185    // create the right type of player
1186    sp<AudioCache> cache = new AudioCache("decode_fd");
1187    player = android::createPlayer(playerType, cache.get(), cache->notify);
1188    if (player == NULL) goto Exit;
1189    if (player->hardwareOutput()) goto Exit;
1190
1191    static_cast<MediaPlayerInterface*>(player.get())->setAudioSink(cache);
1192
1193    // set data source
1194    if (player->setDataSource(fd, offset, length) != NO_ERROR) goto Exit;
1195
1196    LOGV("prepare");
1197    player->prepareAsync();
1198
1199    LOGV("wait for prepare");
1200    if (cache->wait() != NO_ERROR) goto Exit;
1201
1202    LOGV("start");
1203    player->start();
1204
1205    LOGV("wait for playback complete");
1206    if (cache->wait() != NO_ERROR) goto Exit;
1207
1208    mem = new MemoryBase(cache->getHeap(), 0, cache->size());
1209    *pSampleRate = cache->sampleRate();
1210    *pNumChannels = cache->channelCount();
1211    *pFormat = cache->format();
1212    LOGV("return memory @ %p, sampleRate=%u, channelCount = %d, format = %d", mem->pointer(), *pSampleRate, *pNumChannels, *pFormat);
1213
1214Exit:
1215    if (player != 0) player->reset();
1216    ::close(fd);
1217    return mem;
1218}
1219
1220
1221#undef LOG_TAG
1222#define LOG_TAG "AudioSink"
1223MediaPlayerService::AudioOutput::AudioOutput(int sessionId)
1224    : mCallback(NULL),
1225      mCallbackCookie(NULL),
1226      mSessionId(sessionId) {
1227    LOGV("AudioOutput(%d)", sessionId);
1228    mTrack = 0;
1229    mStreamType = AUDIO_STREAM_MUSIC;
1230    mLeftVolume = 1.0;
1231    mRightVolume = 1.0;
1232    mLatency = 0;
1233    mMsecsPerFrame = 0;
1234    mAuxEffectId = 0;
1235    mSendLevel = 0.0;
1236    setMinBufferCount();
1237}
1238
1239MediaPlayerService::AudioOutput::~AudioOutput()
1240{
1241    close();
1242}
1243
1244void MediaPlayerService::AudioOutput::setMinBufferCount()
1245{
1246    char value[PROPERTY_VALUE_MAX];
1247    if (property_get("ro.kernel.qemu", value, 0)) {
1248        mIsOnEmulator = true;
1249        mMinBufferCount = 12;  // to prevent systematic buffer underrun for emulator
1250    }
1251}
1252
1253bool MediaPlayerService::AudioOutput::isOnEmulator()
1254{
1255    setMinBufferCount();
1256    return mIsOnEmulator;
1257}
1258
1259int MediaPlayerService::AudioOutput::getMinBufferCount()
1260{
1261    setMinBufferCount();
1262    return mMinBufferCount;
1263}
1264
1265ssize_t MediaPlayerService::AudioOutput::bufferSize() const
1266{
1267    if (mTrack == 0) return NO_INIT;
1268    return mTrack->frameCount() * frameSize();
1269}
1270
1271ssize_t MediaPlayerService::AudioOutput::frameCount() const
1272{
1273    if (mTrack == 0) return NO_INIT;
1274    return mTrack->frameCount();
1275}
1276
1277ssize_t MediaPlayerService::AudioOutput::channelCount() const
1278{
1279    if (mTrack == 0) return NO_INIT;
1280    return mTrack->channelCount();
1281}
1282
1283ssize_t MediaPlayerService::AudioOutput::frameSize() const
1284{
1285    if (mTrack == 0) return NO_INIT;
1286    return mTrack->frameSize();
1287}
1288
1289uint32_t MediaPlayerService::AudioOutput::latency () const
1290{
1291    return mLatency;
1292}
1293
1294float MediaPlayerService::AudioOutput::msecsPerFrame() const
1295{
1296    return mMsecsPerFrame;
1297}
1298
1299status_t MediaPlayerService::AudioOutput::getPosition(uint32_t *position)
1300{
1301    if (mTrack == 0) return NO_INIT;
1302    return mTrack->getPosition(position);
1303}
1304
1305status_t MediaPlayerService::AudioOutput::open(
1306        uint32_t sampleRate, int channelCount, int format, int bufferCount,
1307        AudioCallback cb, void *cookie)
1308{
1309    mCallback = cb;
1310    mCallbackCookie = cookie;
1311
1312    // Check argument "bufferCount" against the mininum buffer count
1313    if (bufferCount < mMinBufferCount) {
1314        LOGD("bufferCount (%d) is too small and increased to %d", bufferCount, mMinBufferCount);
1315        bufferCount = mMinBufferCount;
1316
1317    }
1318    LOGV("open(%u, %d, %d, %d, %d)", sampleRate, channelCount, format, bufferCount,mSessionId);
1319    if (mTrack) close();
1320    int afSampleRate;
1321    int afFrameCount;
1322    int frameCount;
1323
1324    if (AudioSystem::getOutputFrameCount(&afFrameCount, mStreamType) != NO_ERROR) {
1325        return NO_INIT;
1326    }
1327    if (AudioSystem::getOutputSamplingRate(&afSampleRate, mStreamType) != NO_ERROR) {
1328        return NO_INIT;
1329    }
1330
1331    frameCount = (sampleRate*afFrameCount*bufferCount)/afSampleRate;
1332
1333    AudioTrack *t;
1334    if (mCallback != NULL) {
1335        t = new AudioTrack(
1336                mStreamType,
1337                sampleRate,
1338                format,
1339                (channelCount == 2) ? AUDIO_CHANNEL_OUT_STEREO : AUDIO_CHANNEL_OUT_MONO,
1340                frameCount,
1341                0 /* flags */,
1342                CallbackWrapper,
1343                this,
1344                0,
1345                mSessionId);
1346    } else {
1347        t = new AudioTrack(
1348                mStreamType,
1349                sampleRate,
1350                format,
1351                (channelCount == 2) ? AUDIO_CHANNEL_OUT_STEREO : AUDIO_CHANNEL_OUT_MONO,
1352                frameCount,
1353                0,
1354                NULL,
1355                NULL,
1356                0,
1357                mSessionId);
1358    }
1359
1360    if ((t == 0) || (t->initCheck() != NO_ERROR)) {
1361        LOGE("Unable to create audio track");
1362        delete t;
1363        return NO_INIT;
1364    }
1365
1366    LOGV("setVolume");
1367    t->setVolume(mLeftVolume, mRightVolume);
1368
1369    mMsecsPerFrame = 1.e3 / (float) sampleRate;
1370    mLatency = t->latency();
1371    mTrack = t;
1372
1373    t->setAuxEffectSendLevel(mSendLevel);
1374    return t->attachAuxEffect(mAuxEffectId);;
1375}
1376
1377void MediaPlayerService::AudioOutput::start()
1378{
1379    LOGV("start");
1380    if (mTrack) {
1381        mTrack->setVolume(mLeftVolume, mRightVolume);
1382        mTrack->setAuxEffectSendLevel(mSendLevel);
1383        mTrack->start();
1384    }
1385}
1386
1387
1388
1389ssize_t MediaPlayerService::AudioOutput::write(const void* buffer, size_t size)
1390{
1391    LOG_FATAL_IF(mCallback != NULL, "Don't call write if supplying a callback.");
1392
1393    //LOGV("write(%p, %u)", buffer, size);
1394    if (mTrack) {
1395        ssize_t ret = mTrack->write(buffer, size);
1396        return ret;
1397    }
1398    return NO_INIT;
1399}
1400
1401void MediaPlayerService::AudioOutput::stop()
1402{
1403    LOGV("stop");
1404    if (mTrack) mTrack->stop();
1405}
1406
1407void MediaPlayerService::AudioOutput::flush()
1408{
1409    LOGV("flush");
1410    if (mTrack) mTrack->flush();
1411}
1412
1413void MediaPlayerService::AudioOutput::pause()
1414{
1415    LOGV("pause");
1416    if (mTrack) mTrack->pause();
1417}
1418
1419void MediaPlayerService::AudioOutput::close()
1420{
1421    LOGV("close");
1422    delete mTrack;
1423    mTrack = 0;
1424}
1425
1426void MediaPlayerService::AudioOutput::setVolume(float left, float right)
1427{
1428    LOGV("setVolume(%f, %f)", left, right);
1429    mLeftVolume = left;
1430    mRightVolume = right;
1431    if (mTrack) {
1432        mTrack->setVolume(left, right);
1433    }
1434}
1435
1436status_t MediaPlayerService::AudioOutput::setAuxEffectSendLevel(float level)
1437{
1438    LOGV("setAuxEffectSendLevel(%f)", level);
1439    mSendLevel = level;
1440    if (mTrack) {
1441        return mTrack->setAuxEffectSendLevel(level);
1442    }
1443    return NO_ERROR;
1444}
1445
1446status_t MediaPlayerService::AudioOutput::attachAuxEffect(int effectId)
1447{
1448    LOGV("attachAuxEffect(%d)", effectId);
1449    mAuxEffectId = effectId;
1450    if (mTrack) {
1451        return mTrack->attachAuxEffect(effectId);
1452    }
1453    return NO_ERROR;
1454}
1455
1456// static
1457void MediaPlayerService::AudioOutput::CallbackWrapper(
1458        int event, void *cookie, void *info) {
1459    //LOGV("callbackwrapper");
1460    if (event != AudioTrack::EVENT_MORE_DATA) {
1461        return;
1462    }
1463
1464    AudioOutput *me = (AudioOutput *)cookie;
1465    AudioTrack::Buffer *buffer = (AudioTrack::Buffer *)info;
1466
1467    size_t actualSize = (*me->mCallback)(
1468            me, buffer->raw, buffer->size, me->mCallbackCookie);
1469
1470    if (actualSize == 0 && buffer->size > 0) {
1471        // We've reached EOS but the audio track is not stopped yet,
1472        // keep playing silence.
1473
1474        memset(buffer->raw, 0, buffer->size);
1475        actualSize = buffer->size;
1476    }
1477
1478    buffer->size = actualSize;
1479}
1480
1481int MediaPlayerService::AudioOutput::getSessionId()
1482{
1483    return mSessionId;
1484}
1485
1486#undef LOG_TAG
1487#define LOG_TAG "AudioCache"
1488MediaPlayerService::AudioCache::AudioCache(const char* name) :
1489    mChannelCount(0), mFrameCount(1024), mSampleRate(0), mSize(0),
1490    mError(NO_ERROR), mCommandComplete(false)
1491{
1492    // create ashmem heap
1493    mHeap = new MemoryHeapBase(kDefaultHeapSize, 0, name);
1494}
1495
1496uint32_t MediaPlayerService::AudioCache::latency () const
1497{
1498    return 0;
1499}
1500
1501float MediaPlayerService::AudioCache::msecsPerFrame() const
1502{
1503    return mMsecsPerFrame;
1504}
1505
1506status_t MediaPlayerService::AudioCache::getPosition(uint32_t *position)
1507{
1508    if (position == 0) return BAD_VALUE;
1509    *position = mSize;
1510    return NO_ERROR;
1511}
1512
1513////////////////////////////////////////////////////////////////////////////////
1514
1515struct CallbackThread : public Thread {
1516    CallbackThread(const wp<MediaPlayerBase::AudioSink> &sink,
1517                   MediaPlayerBase::AudioSink::AudioCallback cb,
1518                   void *cookie);
1519
1520protected:
1521    virtual ~CallbackThread();
1522
1523    virtual bool threadLoop();
1524
1525private:
1526    wp<MediaPlayerBase::AudioSink> mSink;
1527    MediaPlayerBase::AudioSink::AudioCallback mCallback;
1528    void *mCookie;
1529    void *mBuffer;
1530    size_t mBufferSize;
1531
1532    CallbackThread(const CallbackThread &);
1533    CallbackThread &operator=(const CallbackThread &);
1534};
1535
1536CallbackThread::CallbackThread(
1537        const wp<MediaPlayerBase::AudioSink> &sink,
1538        MediaPlayerBase::AudioSink::AudioCallback cb,
1539        void *cookie)
1540    : mSink(sink),
1541      mCallback(cb),
1542      mCookie(cookie),
1543      mBuffer(NULL),
1544      mBufferSize(0) {
1545}
1546
1547CallbackThread::~CallbackThread() {
1548    if (mBuffer) {
1549        free(mBuffer);
1550        mBuffer = NULL;
1551    }
1552}
1553
1554bool CallbackThread::threadLoop() {
1555    sp<MediaPlayerBase::AudioSink> sink = mSink.promote();
1556    if (sink == NULL) {
1557        return false;
1558    }
1559
1560    if (mBuffer == NULL) {
1561        mBufferSize = sink->bufferSize();
1562        mBuffer = malloc(mBufferSize);
1563    }
1564
1565    size_t actualSize =
1566        (*mCallback)(sink.get(), mBuffer, mBufferSize, mCookie);
1567
1568    if (actualSize > 0) {
1569        sink->write(mBuffer, actualSize);
1570    }
1571
1572    return true;
1573}
1574
1575////////////////////////////////////////////////////////////////////////////////
1576
1577status_t MediaPlayerService::AudioCache::open(
1578        uint32_t sampleRate, int channelCount, int format, int bufferCount,
1579        AudioCallback cb, void *cookie)
1580{
1581    LOGV("open(%u, %d, %d, %d)", sampleRate, channelCount, format, bufferCount);
1582    if (mHeap->getHeapID() < 0) {
1583        return NO_INIT;
1584    }
1585
1586    mSampleRate = sampleRate;
1587    mChannelCount = (uint16_t)channelCount;
1588    mFormat = (uint16_t)format;
1589    mMsecsPerFrame = 1.e3 / (float) sampleRate;
1590
1591    if (cb != NULL) {
1592        mCallbackThread = new CallbackThread(this, cb, cookie);
1593    }
1594    return NO_ERROR;
1595}
1596
1597void MediaPlayerService::AudioCache::start() {
1598    if (mCallbackThread != NULL) {
1599        mCallbackThread->run("AudioCache callback");
1600    }
1601}
1602
1603void MediaPlayerService::AudioCache::stop() {
1604    if (mCallbackThread != NULL) {
1605        mCallbackThread->requestExitAndWait();
1606    }
1607}
1608
1609ssize_t MediaPlayerService::AudioCache::write(const void* buffer, size_t size)
1610{
1611    LOGV("write(%p, %u)", buffer, size);
1612    if ((buffer == 0) || (size == 0)) return size;
1613
1614    uint8_t* p = static_cast<uint8_t*>(mHeap->getBase());
1615    if (p == NULL) return NO_INIT;
1616    p += mSize;
1617    LOGV("memcpy(%p, %p, %u)", p, buffer, size);
1618    if (mSize + size > mHeap->getSize()) {
1619        LOGE("Heap size overflow! req size: %d, max size: %d", (mSize + size), mHeap->getSize());
1620        size = mHeap->getSize() - mSize;
1621    }
1622    memcpy(p, buffer, size);
1623    mSize += size;
1624    return size;
1625}
1626
1627// call with lock held
1628status_t MediaPlayerService::AudioCache::wait()
1629{
1630    Mutex::Autolock lock(mLock);
1631    while (!mCommandComplete) {
1632        mSignal.wait(mLock);
1633    }
1634    mCommandComplete = false;
1635
1636    if (mError == NO_ERROR) {
1637        LOGV("wait - success");
1638    } else {
1639        LOGV("wait - error");
1640    }
1641    return mError;
1642}
1643
1644void MediaPlayerService::AudioCache::notify(
1645        void* cookie, int msg, int ext1, int ext2, const Parcel *obj)
1646{
1647    LOGV("notify(%p, %d, %d, %d)", cookie, msg, ext1, ext2);
1648    AudioCache* p = static_cast<AudioCache*>(cookie);
1649
1650    // ignore buffering messages
1651    switch (msg)
1652    {
1653    case MEDIA_ERROR:
1654        LOGE("Error %d, %d occurred", ext1, ext2);
1655        p->mError = ext1;
1656        break;
1657    case MEDIA_PREPARED:
1658        LOGV("prepared");
1659        break;
1660    case MEDIA_PLAYBACK_COMPLETE:
1661        LOGV("playback complete");
1662        break;
1663    default:
1664        LOGV("ignored");
1665        return;
1666    }
1667
1668    // wake up thread
1669    Mutex::Autolock lock(p->mLock);
1670    p->mCommandComplete = true;
1671    p->mSignal.signal();
1672}
1673
1674int MediaPlayerService::AudioCache::getSessionId()
1675{
1676    return 0;
1677}
1678
1679void MediaPlayerService::addBatteryData(uint32_t params)
1680{
1681    Mutex::Autolock lock(mLock);
1682
1683    int32_t time = systemTime() / 1000000L;
1684
1685    // change audio output devices. This notification comes from AudioFlinger
1686    if ((params & kBatteryDataSpeakerOn)
1687            || (params & kBatteryDataOtherAudioDeviceOn)) {
1688
1689        int deviceOn[NUM_AUDIO_DEVICES];
1690        for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
1691            deviceOn[i] = 0;
1692        }
1693
1694        if ((params & kBatteryDataSpeakerOn)
1695                && (params & kBatteryDataOtherAudioDeviceOn)) {
1696            deviceOn[SPEAKER_AND_OTHER] = 1;
1697        } else if (params & kBatteryDataSpeakerOn) {
1698            deviceOn[SPEAKER] = 1;
1699        } else {
1700            deviceOn[OTHER_AUDIO_DEVICE] = 1;
1701        }
1702
1703        for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
1704            if (mBatteryAudio.deviceOn[i] != deviceOn[i]){
1705
1706                if (mBatteryAudio.refCount > 0) { // if playing audio
1707                    if (!deviceOn[i]) {
1708                        mBatteryAudio.lastTime[i] += time;
1709                        mBatteryAudio.totalTime[i] += mBatteryAudio.lastTime[i];
1710                        mBatteryAudio.lastTime[i] = 0;
1711                    } else {
1712                        mBatteryAudio.lastTime[i] = 0 - time;
1713                    }
1714                }
1715
1716                mBatteryAudio.deviceOn[i] = deviceOn[i];
1717            }
1718        }
1719        return;
1720    }
1721
1722    // an sudio stream is started
1723    if (params & kBatteryDataAudioFlingerStart) {
1724        // record the start time only if currently no other audio
1725        // is being played
1726        if (mBatteryAudio.refCount == 0) {
1727            for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
1728                if (mBatteryAudio.deviceOn[i]) {
1729                    mBatteryAudio.lastTime[i] -= time;
1730                }
1731            }
1732        }
1733
1734        mBatteryAudio.refCount ++;
1735        return;
1736
1737    } else if (params & kBatteryDataAudioFlingerStop) {
1738        if (mBatteryAudio.refCount <= 0) {
1739            LOGW("Battery track warning: refCount is <= 0");
1740            return;
1741        }
1742
1743        // record the stop time only if currently this is the only
1744        // audio being played
1745        if (mBatteryAudio.refCount == 1) {
1746            for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
1747                if (mBatteryAudio.deviceOn[i]) {
1748                    mBatteryAudio.lastTime[i] += time;
1749                    mBatteryAudio.totalTime[i] += mBatteryAudio.lastTime[i];
1750                    mBatteryAudio.lastTime[i] = 0;
1751                }
1752            }
1753        }
1754
1755        mBatteryAudio.refCount --;
1756        return;
1757    }
1758
1759    int uid = IPCThreadState::self()->getCallingUid();
1760    if (uid == AID_MEDIA) {
1761        return;
1762    }
1763    int index = mBatteryData.indexOfKey(uid);
1764
1765    if (index < 0) { // create a new entry for this UID
1766        BatteryUsageInfo info;
1767        info.audioTotalTime = 0;
1768        info.videoTotalTime = 0;
1769        info.audioLastTime = 0;
1770        info.videoLastTime = 0;
1771        info.refCount = 0;
1772
1773        if (mBatteryData.add(uid, info) == NO_MEMORY) {
1774            LOGE("Battery track error: no memory for new app");
1775            return;
1776        }
1777    }
1778
1779    BatteryUsageInfo &info = mBatteryData.editValueFor(uid);
1780
1781    if (params & kBatteryDataCodecStarted) {
1782        if (params & kBatteryDataTrackAudio) {
1783            info.audioLastTime -= time;
1784            info.refCount ++;
1785        }
1786        if (params & kBatteryDataTrackVideo) {
1787            info.videoLastTime -= time;
1788            info.refCount ++;
1789        }
1790    } else {
1791        if (info.refCount == 0) {
1792            LOGW("Battery track warning: refCount is already 0");
1793            return;
1794        } else if (info.refCount < 0) {
1795            LOGE("Battery track error: refCount < 0");
1796            mBatteryData.removeItem(uid);
1797            return;
1798        }
1799
1800        if (params & kBatteryDataTrackAudio) {
1801            info.audioLastTime += time;
1802            info.refCount --;
1803        }
1804        if (params & kBatteryDataTrackVideo) {
1805            info.videoLastTime += time;
1806            info.refCount --;
1807        }
1808
1809        // no stream is being played by this UID
1810        if (info.refCount == 0) {
1811            info.audioTotalTime += info.audioLastTime;
1812            info.audioLastTime = 0;
1813            info.videoTotalTime += info.videoLastTime;
1814            info.videoLastTime = 0;
1815        }
1816    }
1817}
1818
1819status_t MediaPlayerService::pullBatteryData(Parcel* reply) {
1820    Mutex::Autolock lock(mLock);
1821
1822    // audio output devices usage
1823    int32_t time = systemTime() / 1000000L; //in ms
1824    int32_t totalTime;
1825
1826    for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
1827        totalTime = mBatteryAudio.totalTime[i];
1828
1829        if (mBatteryAudio.deviceOn[i]
1830            && (mBatteryAudio.lastTime[i] != 0)) {
1831                int32_t tmpTime = mBatteryAudio.lastTime[i] + time;
1832                totalTime += tmpTime;
1833        }
1834
1835        reply->writeInt32(totalTime);
1836        // reset the total time
1837        mBatteryAudio.totalTime[i] = 0;
1838   }
1839
1840    // codec usage
1841    BatteryUsageInfo info;
1842    int size = mBatteryData.size();
1843
1844    reply->writeInt32(size);
1845    int i = 0;
1846
1847    while (i < size) {
1848        info = mBatteryData.valueAt(i);
1849
1850        reply->writeInt32(mBatteryData.keyAt(i)); //UID
1851        reply->writeInt32(info.audioTotalTime);
1852        reply->writeInt32(info.videoTotalTime);
1853
1854        info.audioTotalTime = 0;
1855        info.videoTotalTime = 0;
1856
1857        // remove the UID entry where no stream is being played
1858        if (info.refCount <= 0) {
1859            mBatteryData.removeItemsAt(i);
1860            size --;
1861            i --;
1862        }
1863        i++;
1864    }
1865    return NO_ERROR;
1866}
1867} // namespace android
1868