MediaPlayerService.cpp revision e579e28089c6b86f56d257030b778c5e22b1a5a5 
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#include <media/stagefright/MediaErrors.h>
56
57#include <system/audio.h>
58
59#include <private/android_filesystem_config.h>
60
61#include "MediaRecorderClient.h"
62#include "MediaPlayerService.h"
63#include "MetadataRetrieverClient.h"
64
65#include "MidiFile.h"
66#include "TestPlayerStub.h"
67#include "StagefrightPlayer.h"
68#include "nuplayer/NuPlayerDriver.h"
69
70#include <OMX.h>
71
72namespace {
73using android::media::Metadata;
74using android::status_t;
75using android::OK;
76using android::BAD_VALUE;
77using android::NOT_ENOUGH_DATA;
78using android::Parcel;
79
80// Max number of entries in the filter.
81const int kMaxFilterSize = 64;  // I pulled that out of thin air.
82
83// FIXME: Move all the metadata related function in the Metadata.cpp
84
85
86// Unmarshall a filter from a Parcel.
87// Filter format in a parcel:
88//
89//  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
90// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
91// |                       number of entries (n)                   |
92// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
93// |                       metadata type 1                         |
94// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
95// |                       metadata type 2                         |
96// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
97//  ....
98// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
99// |                       metadata type n                         |
100// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
101//
102// @param p Parcel that should start with a filter.
103// @param[out] filter On exit contains the list of metadata type to be
104//                    filtered.
105// @param[out] status On exit contains the status code to be returned.
106// @return true if the parcel starts with a valid filter.
107bool unmarshallFilter(const Parcel& p,
108                      Metadata::Filter *filter,
109                      status_t *status)
110{
111    int32_t val;
112    if (p.readInt32(&val) != OK)
113    {
114        LOGE("Failed to read filter's length");
115        *status = NOT_ENOUGH_DATA;
116        return false;
117    }
118
119    if( val > kMaxFilterSize || val < 0)
120    {
121        LOGE("Invalid filter len %d", val);
122        *status = BAD_VALUE;
123        return false;
124    }
125
126    const size_t num = val;
127
128    filter->clear();
129    filter->setCapacity(num);
130
131    size_t size = num * sizeof(Metadata::Type);
132
133
134    if (p.dataAvail() < size)
135    {
136        LOGE("Filter too short expected %d but got %d", size, p.dataAvail());
137        *status = NOT_ENOUGH_DATA;
138        return false;
139    }
140
141    const Metadata::Type *data =
142            static_cast<const Metadata::Type*>(p.readInplace(size));
143
144    if (NULL == data)
145    {
146        LOGE("Filter had no data");
147        *status = BAD_VALUE;
148        return false;
149    }
150
151    // TODO: The stl impl of vector would be more efficient here
152    // because it degenerates into a memcpy on pod types. Try to
153    // replace later or use stl::set.
154    for (size_t i = 0; i < num; ++i)
155    {
156        filter->add(*data);
157        ++data;
158    }
159    *status = OK;
160    return true;
161}
162
163// @param filter Of metadata type.
164// @param val To be searched.
165// @return true if a match was found.
166bool findMetadata(const Metadata::Filter& filter, const int32_t val)
167{
168    // Deal with empty and ANY right away
169    if (filter.isEmpty()) return false;
170    if (filter[0] == Metadata::kAny) return true;
171
172    return filter.indexOf(val) >= 0;
173}
174
175}  // anonymous namespace
176
177
178namespace android {
179
180static bool checkPermission(const char* permissionString) {
181#ifndef HAVE_ANDROID_OS
182    return true;
183#endif
184    if (getpid() == IPCThreadState::self()->getCallingPid()) return true;
185    bool ok = checkCallingPermission(String16(permissionString));
186    if (!ok) LOGE("Request requires %s", permissionString);
187    return ok;
188}
189
190// TODO: Temp hack until we can register players
191typedef struct {
192    const char *extension;
193    const player_type playertype;
194} extmap;
195extmap FILE_EXTS [] =  {
196        {".mid", SONIVOX_PLAYER},
197        {".midi", SONIVOX_PLAYER},
198        {".smf", SONIVOX_PLAYER},
199        {".xmf", SONIVOX_PLAYER},
200        {".imy", SONIVOX_PLAYER},
201        {".rtttl", SONIVOX_PLAYER},
202        {".rtx", SONIVOX_PLAYER},
203        {".ota", SONIVOX_PLAYER},
204};
205
206// TODO: Find real cause of Audio/Video delay in PV framework and remove this workaround
207/* static */ int MediaPlayerService::AudioOutput::mMinBufferCount = 4;
208/* static */ bool MediaPlayerService::AudioOutput::mIsOnEmulator = false;
209
210void MediaPlayerService::instantiate() {
211    defaultServiceManager()->addService(
212            String16("media.player"), new MediaPlayerService());
213}
214
215MediaPlayerService::MediaPlayerService()
216{
217    LOGV("MediaPlayerService created");
218    mNextConnId = 1;
219
220    mBatteryAudio.refCount = 0;
221    for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
222        mBatteryAudio.deviceOn[i] = 0;
223        mBatteryAudio.lastTime[i] = 0;
224        mBatteryAudio.totalTime[i] = 0;
225    }
226    // speaker is on by default
227    mBatteryAudio.deviceOn[SPEAKER] = 1;
228}
229
230MediaPlayerService::~MediaPlayerService()
231{
232    LOGV("MediaPlayerService destroyed");
233}
234
235sp<IMediaRecorder> MediaPlayerService::createMediaRecorder(pid_t pid)
236{
237    sp<MediaRecorderClient> recorder = new MediaRecorderClient(this, pid);
238    wp<MediaRecorderClient> w = recorder;
239    Mutex::Autolock lock(mLock);
240    mMediaRecorderClients.add(w);
241    LOGV("Create new media recorder client from pid %d", pid);
242    return recorder;
243}
244
245void MediaPlayerService::removeMediaRecorderClient(wp<MediaRecorderClient> client)
246{
247    Mutex::Autolock lock(mLock);
248    mMediaRecorderClients.remove(client);
249    LOGV("Delete media recorder client");
250}
251
252sp<IMediaMetadataRetriever> MediaPlayerService::createMetadataRetriever(pid_t pid)
253{
254    sp<MetadataRetrieverClient> retriever = new MetadataRetrieverClient(pid);
255    LOGV("Create new media retriever from pid %d", pid);
256    return retriever;
257}
258
259sp<IMediaPlayer> MediaPlayerService::create(pid_t pid, const sp<IMediaPlayerClient>& client,
260        int audioSessionId)
261{
262    int32_t connId = android_atomic_inc(&mNextConnId);
263
264    sp<Client> c = new Client(
265            this, pid, connId, client, audioSessionId,
266            IPCThreadState::self()->getCallingUid());
267
268    LOGV("Create new client(%d) from pid %d, uid %d, ", connId, pid,
269         IPCThreadState::self()->getCallingUid());
270
271    wp<Client> w = c;
272    {
273        Mutex::Autolock lock(mLock);
274        mClients.add(w);
275    }
276    return c;
277}
278
279sp<IOMX> MediaPlayerService::getOMX() {
280    Mutex::Autolock autoLock(mLock);
281
282    if (mOMX.get() == NULL) {
283        mOMX = new OMX;
284    }
285
286    return mOMX;
287}
288
289status_t MediaPlayerService::AudioCache::dump(int fd, const Vector<String16>& args) const
290{
291    const size_t SIZE = 256;
292    char buffer[SIZE];
293    String8 result;
294
295    result.append(" AudioCache\n");
296    if (mHeap != 0) {
297        snprintf(buffer, 255, "  heap base(%p), size(%d), flags(%d), device(%s)\n",
298                mHeap->getBase(), mHeap->getSize(), mHeap->getFlags(), mHeap->getDevice());
299        result.append(buffer);
300    }
301    snprintf(buffer, 255, "  msec per frame(%f), channel count(%d), format(%d), frame count(%ld)\n",
302            mMsecsPerFrame, mChannelCount, mFormat, mFrameCount);
303    result.append(buffer);
304    snprintf(buffer, 255, "  sample rate(%d), size(%d), error(%d), command complete(%s)\n",
305            mSampleRate, mSize, mError, mCommandComplete?"true":"false");
306    result.append(buffer);
307    ::write(fd, result.string(), result.size());
308    return NO_ERROR;
309}
310
311status_t MediaPlayerService::AudioOutput::dump(int fd, const Vector<String16>& args) const
312{
313    const size_t SIZE = 256;
314    char buffer[SIZE];
315    String8 result;
316
317    result.append(" AudioOutput\n");
318    snprintf(buffer, 255, "  stream type(%d), left - right volume(%f, %f)\n",
319            mStreamType, mLeftVolume, mRightVolume);
320    result.append(buffer);
321    snprintf(buffer, 255, "  msec per frame(%f), latency (%d)\n",
322            mMsecsPerFrame, mLatency);
323    result.append(buffer);
324    snprintf(buffer, 255, "  aux effect id(%d), send level (%f)\n",
325            mAuxEffectId, mSendLevel);
326    result.append(buffer);
327
328    ::write(fd, result.string(), result.size());
329    if (mTrack != 0) {
330        mTrack->dump(fd, args);
331    }
332    return NO_ERROR;
333}
334
335status_t MediaPlayerService::Client::dump(int fd, const Vector<String16>& args) const
336{
337    const size_t SIZE = 256;
338    char buffer[SIZE];
339    String8 result;
340    result.append(" Client\n");
341    snprintf(buffer, 255, "  pid(%d), connId(%d), status(%d), looping(%s)\n",
342            mPid, mConnId, mStatus, mLoop?"true": "false");
343    result.append(buffer);
344    write(fd, result.string(), result.size());
345    if (mPlayer != NULL) {
346        mPlayer->dump(fd, args);
347    }
348    if (mAudioOutput != 0) {
349        mAudioOutput->dump(fd, args);
350    }
351    write(fd, "\n", 1);
352    return NO_ERROR;
353}
354
355status_t MediaPlayerService::dump(int fd, const Vector<String16>& args)
356{
357    const size_t SIZE = 256;
358    char buffer[SIZE];
359    String8 result;
360    if (checkCallingPermission(String16("android.permission.DUMP")) == false) {
361        snprintf(buffer, SIZE, "Permission Denial: "
362                "can't dump MediaPlayerService from pid=%d, uid=%d\n",
363                IPCThreadState::self()->getCallingPid(),
364                IPCThreadState::self()->getCallingUid());
365        result.append(buffer);
366    } else {
367        Mutex::Autolock lock(mLock);
368        for (int i = 0, n = mClients.size(); i < n; ++i) {
369            sp<Client> c = mClients[i].promote();
370            if (c != 0) c->dump(fd, args);
371        }
372        if (mMediaRecorderClients.size() == 0) {
373                result.append(" No media recorder client\n\n");
374        } else {
375            for (int i = 0, n = mMediaRecorderClients.size(); i < n; ++i) {
376                sp<MediaRecorderClient> c = mMediaRecorderClients[i].promote();
377                if (c != 0) {
378                    snprintf(buffer, 255, " MediaRecorderClient pid(%d)\n", c->mPid);
379                    result.append(buffer);
380                    write(fd, result.string(), result.size());
381                    result = "\n";
382                    c->dump(fd, args);
383                }
384            }
385        }
386
387        result.append(" Files opened and/or mapped:\n");
388        snprintf(buffer, SIZE, "/proc/%d/maps", gettid());
389        FILE *f = fopen(buffer, "r");
390        if (f) {
391            while (!feof(f)) {
392                fgets(buffer, SIZE, f);
393                if (strstr(buffer, " /mnt/sdcard/") ||
394                    strstr(buffer, " /system/sounds/") ||
395                    strstr(buffer, " /data/") ||
396                    strstr(buffer, " /system/media/")) {
397                    result.append("  ");
398                    result.append(buffer);
399                }
400            }
401            fclose(f);
402        } else {
403            result.append("couldn't open ");
404            result.append(buffer);
405            result.append("\n");
406        }
407
408        snprintf(buffer, SIZE, "/proc/%d/fd", gettid());
409        DIR *d = opendir(buffer);
410        if (d) {
411            struct dirent *ent;
412            while((ent = readdir(d)) != NULL) {
413                if (strcmp(ent->d_name,".") && strcmp(ent->d_name,"..")) {
414                    snprintf(buffer, SIZE, "/proc/%d/fd/%s", gettid(), ent->d_name);
415                    struct stat s;
416                    if (lstat(buffer, &s) == 0) {
417                        if ((s.st_mode & S_IFMT) == S_IFLNK) {
418                            char linkto[256];
419                            int len = readlink(buffer, linkto, sizeof(linkto));
420                            if(len > 0) {
421                                if(len > 255) {
422                                    linkto[252] = '.';
423                                    linkto[253] = '.';
424                                    linkto[254] = '.';
425                                    linkto[255] = 0;
426                                } else {
427                                    linkto[len] = 0;
428                                }
429                                if (strstr(linkto, "/mnt/sdcard/") == linkto ||
430                                    strstr(linkto, "/system/sounds/") == linkto ||
431                                    strstr(linkto, "/data/") == linkto ||
432                                    strstr(linkto, "/system/media/") == linkto) {
433                                    result.append("  ");
434                                    result.append(buffer);
435                                    result.append(" -> ");
436                                    result.append(linkto);
437                                    result.append("\n");
438                                }
439                            }
440                        } else {
441                            result.append("  unexpected type for ");
442                            result.append(buffer);
443                            result.append("\n");
444                        }
445                    }
446                }
447            }
448            closedir(d);
449        } else {
450            result.append("couldn't open ");
451            result.append(buffer);
452            result.append("\n");
453        }
454
455        bool dumpMem = false;
456        for (size_t i = 0; i < args.size(); i++) {
457            if (args[i] == String16("-m")) {
458                dumpMem = true;
459            }
460        }
461        if (dumpMem) {
462            dumpMemoryAddresses(fd);
463        }
464    }
465    write(fd, result.string(), result.size());
466    return NO_ERROR;
467}
468
469void MediaPlayerService::removeClient(wp<Client> client)
470{
471    Mutex::Autolock lock(mLock);
472    mClients.remove(client);
473}
474
475MediaPlayerService::Client::Client(
476        const sp<MediaPlayerService>& service, pid_t pid,
477        int32_t connId, const sp<IMediaPlayerClient>& client,
478        int audioSessionId, uid_t uid)
479{
480    LOGV("Client(%d) constructor", connId);
481    mPid = pid;
482    mConnId = connId;
483    mService = service;
484    mClient = client;
485    mLoop = false;
486    mStatus = NO_INIT;
487    mAudioSessionId = audioSessionId;
488    mUID = uid;
489
490#if CALLBACK_ANTAGONIZER
491    LOGD("create Antagonizer");
492    mAntagonizer = new Antagonizer(notify, this);
493#endif
494}
495
496MediaPlayerService::Client::~Client()
497{
498    LOGV("Client(%d) destructor pid = %d", mConnId, mPid);
499    mAudioOutput.clear();
500    wp<Client> client(this);
501    disconnect();
502    mService->removeClient(client);
503}
504
505void MediaPlayerService::Client::disconnect()
506{
507    LOGV("disconnect(%d) from pid %d", mConnId, mPid);
508    // grab local reference and clear main reference to prevent future
509    // access to object
510    sp<MediaPlayerBase> p;
511    {
512        Mutex::Autolock l(mLock);
513        p = mPlayer;
514    }
515    mClient.clear();
516
517    mPlayer.clear();
518
519    // clear the notification to prevent callbacks to dead client
520    // and reset the player. We assume the player will serialize
521    // access to itself if necessary.
522    if (p != 0) {
523        p->setNotifyCallback(0, 0);
524#if CALLBACK_ANTAGONIZER
525        LOGD("kill Antagonizer");
526        mAntagonizer->kill();
527#endif
528        p->reset();
529    }
530
531    IPCThreadState::self()->flushCommands();
532}
533
534static player_type getDefaultPlayerType() {
535    return STAGEFRIGHT_PLAYER;
536}
537
538player_type getPlayerType(int fd, int64_t offset, int64_t length)
539{
540    char buf[20];
541    lseek(fd, offset, SEEK_SET);
542    read(fd, buf, sizeof(buf));
543    lseek(fd, offset, SEEK_SET);
544
545    long ident = *((long*)buf);
546
547    // Ogg vorbis?
548    if (ident == 0x5367674f) // 'OggS'
549        return STAGEFRIGHT_PLAYER;
550
551    // Some kind of MIDI?
552    EAS_DATA_HANDLE easdata;
553    if (EAS_Init(&easdata) == EAS_SUCCESS) {
554        EAS_FILE locator;
555        locator.path = NULL;
556        locator.fd = fd;
557        locator.offset = offset;
558        locator.length = length;
559        EAS_HANDLE  eashandle;
560        if (EAS_OpenFile(easdata, &locator, &eashandle) == EAS_SUCCESS) {
561            EAS_CloseFile(easdata, eashandle);
562            EAS_Shutdown(easdata);
563            return SONIVOX_PLAYER;
564        }
565        EAS_Shutdown(easdata);
566    }
567
568    return getDefaultPlayerType();
569}
570
571player_type getPlayerType(const char* url)
572{
573    if (TestPlayerStub::canBeUsed(url)) {
574        return TEST_PLAYER;
575    }
576
577    if (!strncasecmp("http://", url, 7)
578            || !strncasecmp("https://", url, 8)) {
579        size_t len = strlen(url);
580        if (len >= 5 && !strcasecmp(".m3u8", &url[len - 5])) {
581            return NU_PLAYER;
582        }
583
584        if (strstr(url,"m3u8")) {
585            return NU_PLAYER;
586        }
587    }
588
589    // use MidiFile for MIDI extensions
590    int lenURL = strlen(url);
591    for (int i = 0; i < NELEM(FILE_EXTS); ++i) {
592        int len = strlen(FILE_EXTS[i].extension);
593        int start = lenURL - len;
594        if (start > 0) {
595            if (!strncasecmp(url + start, FILE_EXTS[i].extension, len)) {
596                return FILE_EXTS[i].playertype;
597            }
598        }
599    }
600
601    return getDefaultPlayerType();
602}
603
604static sp<MediaPlayerBase> createPlayer(player_type playerType, void* cookie,
605        notify_callback_f notifyFunc)
606{
607    sp<MediaPlayerBase> p;
608    switch (playerType) {
609        case SONIVOX_PLAYER:
610            LOGV(" create MidiFile");
611            p = new MidiFile();
612            break;
613        case STAGEFRIGHT_PLAYER:
614            LOGV(" create StagefrightPlayer");
615            p = new StagefrightPlayer;
616            break;
617        case NU_PLAYER:
618            LOGV(" create NuPlayer");
619            p = new NuPlayerDriver;
620            break;
621        case TEST_PLAYER:
622            LOGV("Create Test Player stub");
623            p = new TestPlayerStub();
624            break;
625        default:
626            LOGE("Unknown player type: %d", playerType);
627            return NULL;
628    }
629    if (p != NULL) {
630        if (p->initCheck() == NO_ERROR) {
631            p->setNotifyCallback(cookie, notifyFunc);
632        } else {
633            p.clear();
634        }
635    }
636    if (p == NULL) {
637        LOGE("Failed to create player object");
638    }
639    return p;
640}
641
642sp<MediaPlayerBase> MediaPlayerService::Client::createPlayer(player_type playerType)
643{
644    // determine if we have the right player type
645    sp<MediaPlayerBase> p = mPlayer;
646    if ((p != NULL) && (p->playerType() != playerType)) {
647        LOGV("delete player");
648        p.clear();
649    }
650    if (p == NULL) {
651        p = android::createPlayer(playerType, this, notify);
652    }
653
654    if (p != NULL) {
655        p->setUID(mUID);
656    }
657
658    return p;
659}
660
661status_t MediaPlayerService::Client::setDataSource(
662        const char *url, const KeyedVector<String8, String8> *headers)
663{
664    LOGV("setDataSource(%s)", url);
665    if (url == NULL)
666        return UNKNOWN_ERROR;
667
668    if ((strncmp(url, "http://", 7) == 0) ||
669        (strncmp(url, "https://", 8) == 0) ||
670        (strncmp(url, "rtsp://", 7) == 0)) {
671        if (!checkPermission("android.permission.INTERNET")) {
672            return PERMISSION_DENIED;
673        }
674    }
675
676    if (strncmp(url, "content://", 10) == 0) {
677        // get a filedescriptor for the content Uri and
678        // pass it to the setDataSource(fd) method
679
680        String16 url16(url);
681        int fd = android::openContentProviderFile(url16);
682        if (fd < 0)
683        {
684            LOGE("Couldn't open fd for %s", url);
685            return UNKNOWN_ERROR;
686        }
687        setDataSource(fd, 0, 0x7fffffffffLL); // this sets mStatus
688        close(fd);
689        return mStatus;
690    } else {
691        player_type playerType = getPlayerType(url);
692        LOGV("player type = %d", playerType);
693
694        // create the right type of player
695        sp<MediaPlayerBase> p = createPlayer(playerType);
696        if (p == NULL) return NO_INIT;
697
698        if (!p->hardwareOutput()) {
699            mAudioOutput = new AudioOutput(mAudioSessionId);
700            static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput);
701        }
702
703        // now set data source
704        LOGV(" setDataSource");
705        mStatus = p->setDataSource(url, headers);
706        if (mStatus == NO_ERROR) {
707            mPlayer = p;
708        } else {
709            LOGE("  error: %d", mStatus);
710        }
711        return mStatus;
712    }
713}
714
715status_t MediaPlayerService::Client::setDataSource(int fd, int64_t offset, int64_t length)
716{
717    LOGV("setDataSource fd=%d, offset=%lld, length=%lld", fd, offset, length);
718    struct stat sb;
719    int ret = fstat(fd, &sb);
720    if (ret != 0) {
721        LOGE("fstat(%d) failed: %d, %s", fd, ret, strerror(errno));
722        return UNKNOWN_ERROR;
723    }
724
725    LOGV("st_dev  = %llu", sb.st_dev);
726    LOGV("st_mode = %u", sb.st_mode);
727    LOGV("st_uid  = %lu", sb.st_uid);
728    LOGV("st_gid  = %lu", sb.st_gid);
729    LOGV("st_size = %llu", sb.st_size);
730
731    if (offset >= sb.st_size) {
732        LOGE("offset error");
733        ::close(fd);
734        return UNKNOWN_ERROR;
735    }
736    if (offset + length > sb.st_size) {
737        length = sb.st_size - offset;
738        LOGV("calculated length = %lld", length);
739    }
740
741    player_type playerType = getPlayerType(fd, offset, length);
742    LOGV("player type = %d", playerType);
743
744    // create the right type of player
745    sp<MediaPlayerBase> p = createPlayer(playerType);
746    if (p == NULL) return NO_INIT;
747
748    if (!p->hardwareOutput()) {
749        mAudioOutput = new AudioOutput(mAudioSessionId);
750        static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput);
751    }
752
753    // now set data source
754    mStatus = p->setDataSource(fd, offset, length);
755    if (mStatus == NO_ERROR) mPlayer = p;
756
757    return mStatus;
758}
759
760status_t MediaPlayerService::Client::setDataSource(
761        const sp<IStreamSource> &source) {
762    // create the right type of player
763    sp<MediaPlayerBase> p = createPlayer(NU_PLAYER);
764
765    if (p == NULL) {
766        return NO_INIT;
767    }
768
769    if (!p->hardwareOutput()) {
770        mAudioOutput = new AudioOutput(mAudioSessionId);
771        static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput);
772    }
773
774    // now set data source
775    mStatus = p->setDataSource(source);
776
777    if (mStatus == OK) {
778        mPlayer = p;
779    }
780
781    return mStatus;
782}
783
784status_t MediaPlayerService::Client::setVideoSurface(const sp<Surface>& surface)
785{
786    LOGV("[%d] setVideoSurface(%p)", mConnId, surface.get());
787    sp<MediaPlayerBase> p = getPlayer();
788    if (p == 0) return UNKNOWN_ERROR;
789    return p->setVideoSurface(surface);
790}
791
792status_t MediaPlayerService::Client::setVideoSurfaceTexture(
793        const sp<ISurfaceTexture>& surfaceTexture)
794{
795    LOGV("[%d] setVideoSurfaceTexture(%p)", mConnId, surfaceTexture.get());
796    sp<MediaPlayerBase> p = getPlayer();
797    if (p == 0) return UNKNOWN_ERROR;
798    return p->setVideoSurfaceTexture(surfaceTexture);
799}
800
801status_t MediaPlayerService::Client::invoke(const Parcel& request,
802                                            Parcel *reply)
803{
804    sp<MediaPlayerBase> p = getPlayer();
805    if (p == NULL) return UNKNOWN_ERROR;
806    return p->invoke(request, reply);
807}
808
809// This call doesn't need to access the native player.
810status_t MediaPlayerService::Client::setMetadataFilter(const Parcel& filter)
811{
812    status_t status;
813    media::Metadata::Filter allow, drop;
814
815    if (unmarshallFilter(filter, &allow, &status) &&
816        unmarshallFilter(filter, &drop, &status)) {
817        Mutex::Autolock lock(mLock);
818
819        mMetadataAllow = allow;
820        mMetadataDrop = drop;
821    }
822    return status;
823}
824
825status_t MediaPlayerService::Client::getMetadata(
826        bool update_only, bool apply_filter, Parcel *reply)
827{
828    sp<MediaPlayerBase> player = getPlayer();
829    if (player == 0) return UNKNOWN_ERROR;
830
831    status_t status;
832    // Placeholder for the return code, updated by the caller.
833    reply->writeInt32(-1);
834
835    media::Metadata::Filter ids;
836
837    // We don't block notifications while we fetch the data. We clear
838    // mMetadataUpdated first so we don't lose notifications happening
839    // during the rest of this call.
840    {
841        Mutex::Autolock lock(mLock);
842        if (update_only) {
843            ids = mMetadataUpdated;
844        }
845        mMetadataUpdated.clear();
846    }
847
848    media::Metadata metadata(reply);
849
850    metadata.appendHeader();
851    status = player->getMetadata(ids, reply);
852
853    if (status != OK) {
854        metadata.resetParcel();
855        LOGE("getMetadata failed %d", status);
856        return status;
857    }
858
859    // FIXME: Implement filtering on the result. Not critical since
860    // filtering takes place on the update notifications already. This
861    // would be when all the metadata are fetch and a filter is set.
862
863    // Everything is fine, update the metadata length.
864    metadata.updateLength();
865    return OK;
866}
867
868status_t MediaPlayerService::Client::prepareAsync()
869{
870    LOGV("[%d] prepareAsync", mConnId);
871    sp<MediaPlayerBase> p = getPlayer();
872    if (p == 0) return UNKNOWN_ERROR;
873    status_t ret = p->prepareAsync();
874#if CALLBACK_ANTAGONIZER
875    LOGD("start Antagonizer");
876    if (ret == NO_ERROR) mAntagonizer->start();
877#endif
878    return ret;
879}
880
881status_t MediaPlayerService::Client::start()
882{
883    LOGV("[%d] start", mConnId);
884    sp<MediaPlayerBase> p = getPlayer();
885    if (p == 0) return UNKNOWN_ERROR;
886    p->setLooping(mLoop);
887    return p->start();
888}
889
890status_t MediaPlayerService::Client::stop()
891{
892    LOGV("[%d] stop", mConnId);
893    sp<MediaPlayerBase> p = getPlayer();
894    if (p == 0) return UNKNOWN_ERROR;
895    return p->stop();
896}
897
898status_t MediaPlayerService::Client::pause()
899{
900    LOGV("[%d] pause", mConnId);
901    sp<MediaPlayerBase> p = getPlayer();
902    if (p == 0) return UNKNOWN_ERROR;
903    return p->pause();
904}
905
906status_t MediaPlayerService::Client::isPlaying(bool* state)
907{
908    *state = false;
909    sp<MediaPlayerBase> p = getPlayer();
910    if (p == 0) return UNKNOWN_ERROR;
911    *state = p->isPlaying();
912    LOGV("[%d] isPlaying: %d", mConnId, *state);
913    return NO_ERROR;
914}
915
916status_t MediaPlayerService::Client::getCurrentPosition(int *msec)
917{
918    LOGV("getCurrentPosition");
919    sp<MediaPlayerBase> p = getPlayer();
920    if (p == 0) return UNKNOWN_ERROR;
921    status_t ret = p->getCurrentPosition(msec);
922    if (ret == NO_ERROR) {
923        LOGV("[%d] getCurrentPosition = %d", mConnId, *msec);
924    } else {
925        LOGE("getCurrentPosition returned %d", ret);
926    }
927    return ret;
928}
929
930status_t MediaPlayerService::Client::getDuration(int *msec)
931{
932    LOGV("getDuration");
933    sp<MediaPlayerBase> p = getPlayer();
934    if (p == 0) return UNKNOWN_ERROR;
935    status_t ret = p->getDuration(msec);
936    if (ret == NO_ERROR) {
937        LOGV("[%d] getDuration = %d", mConnId, *msec);
938    } else {
939        LOGE("getDuration returned %d", ret);
940    }
941    return ret;
942}
943
944status_t MediaPlayerService::Client::seekTo(int msec)
945{
946    LOGV("[%d] seekTo(%d)", mConnId, msec);
947    sp<MediaPlayerBase> p = getPlayer();
948    if (p == 0) return UNKNOWN_ERROR;
949    return p->seekTo(msec);
950}
951
952status_t MediaPlayerService::Client::reset()
953{
954    LOGV("[%d] reset", mConnId);
955    sp<MediaPlayerBase> p = getPlayer();
956    if (p == 0) return UNKNOWN_ERROR;
957    return p->reset();
958}
959
960status_t MediaPlayerService::Client::setAudioStreamType(int type)
961{
962    LOGV("[%d] setAudioStreamType(%d)", mConnId, type);
963    // TODO: for hardware output, call player instead
964    Mutex::Autolock l(mLock);
965    if (mAudioOutput != 0) mAudioOutput->setAudioStreamType(type);
966    return NO_ERROR;
967}
968
969status_t MediaPlayerService::Client::setLooping(int loop)
970{
971    LOGV("[%d] setLooping(%d)", mConnId, loop);
972    mLoop = loop;
973    sp<MediaPlayerBase> p = getPlayer();
974    if (p != 0) return p->setLooping(loop);
975    return NO_ERROR;
976}
977
978status_t MediaPlayerService::Client::setVolume(float leftVolume, float rightVolume)
979{
980    LOGV("[%d] setVolume(%f, %f)", mConnId, leftVolume, rightVolume);
981    // TODO: for hardware output, call player instead
982    Mutex::Autolock l(mLock);
983    if (mAudioOutput != 0) mAudioOutput->setVolume(leftVolume, rightVolume);
984    return NO_ERROR;
985}
986
987status_t MediaPlayerService::Client::setAuxEffectSendLevel(float level)
988{
989    LOGV("[%d] setAuxEffectSendLevel(%f)", mConnId, level);
990    Mutex::Autolock l(mLock);
991    if (mAudioOutput != 0) return mAudioOutput->setAuxEffectSendLevel(level);
992    return NO_ERROR;
993}
994
995status_t MediaPlayerService::Client::attachAuxEffect(int effectId)
996{
997    LOGV("[%d] attachAuxEffect(%d)", mConnId, effectId);
998    Mutex::Autolock l(mLock);
999    if (mAudioOutput != 0) return mAudioOutput->attachAuxEffect(effectId);
1000    return NO_ERROR;
1001}
1002
1003status_t MediaPlayerService::Client::setParameter(int key, const Parcel &request) {
1004    LOGV("[%d] setParameter(%d)", mConnId, key);
1005    sp<MediaPlayerBase> p = getPlayer();
1006    if (p == 0) return UNKNOWN_ERROR;
1007    return p->setParameter(key, request);
1008}
1009
1010status_t MediaPlayerService::Client::getParameter(int key, Parcel *reply) {
1011    LOGV("[%d] getParameter(%d)", mConnId, key);
1012    sp<MediaPlayerBase> p = getPlayer();
1013    if (p == 0) return UNKNOWN_ERROR;
1014    return p->getParameter(key, reply);
1015}
1016
1017void MediaPlayerService::Client::notify(
1018        void* cookie, int msg, int ext1, int ext2, const Parcel *obj)
1019{
1020    Client* client = static_cast<Client*>(cookie);
1021
1022    if (MEDIA_INFO == msg &&
1023        MEDIA_INFO_METADATA_UPDATE == ext1) {
1024        const media::Metadata::Type metadata_type = ext2;
1025
1026        if(client->shouldDropMetadata(metadata_type)) {
1027            return;
1028        }
1029
1030        // Update the list of metadata that have changed. getMetadata
1031        // also access mMetadataUpdated and clears it.
1032        client->addNewMetadataUpdate(metadata_type);
1033    }
1034    LOGV("[%d] notify (%p, %d, %d, %d)", client->mConnId, cookie, msg, ext1, ext2);
1035    client->mClient->notify(msg, ext1, ext2, obj);
1036}
1037
1038
1039bool MediaPlayerService::Client::shouldDropMetadata(media::Metadata::Type code) const
1040{
1041    Mutex::Autolock lock(mLock);
1042
1043    if (findMetadata(mMetadataDrop, code)) {
1044        return true;
1045    }
1046
1047    if (mMetadataAllow.isEmpty() || findMetadata(mMetadataAllow, code)) {
1048        return false;
1049    } else {
1050        return true;
1051    }
1052}
1053
1054
1055void MediaPlayerService::Client::addNewMetadataUpdate(media::Metadata::Type metadata_type) {
1056    Mutex::Autolock lock(mLock);
1057    if (mMetadataUpdated.indexOf(metadata_type) < 0) {
1058        mMetadataUpdated.add(metadata_type);
1059    }
1060}
1061
1062#if CALLBACK_ANTAGONIZER
1063const int Antagonizer::interval = 10000; // 10 msecs
1064
1065Antagonizer::Antagonizer(notify_callback_f cb, void* client) :
1066    mExit(false), mActive(false), mClient(client), mCb(cb)
1067{
1068    createThread(callbackThread, this);
1069}
1070
1071void Antagonizer::kill()
1072{
1073    Mutex::Autolock _l(mLock);
1074    mActive = false;
1075    mExit = true;
1076    mCondition.wait(mLock);
1077}
1078
1079int Antagonizer::callbackThread(void* user)
1080{
1081    LOGD("Antagonizer started");
1082    Antagonizer* p = reinterpret_cast<Antagonizer*>(user);
1083    while (!p->mExit) {
1084        if (p->mActive) {
1085            LOGV("send event");
1086            p->mCb(p->mClient, 0, 0, 0);
1087        }
1088        usleep(interval);
1089    }
1090    Mutex::Autolock _l(p->mLock);
1091    p->mCondition.signal();
1092    LOGD("Antagonizer stopped");
1093    return 0;
1094}
1095#endif
1096
1097static size_t kDefaultHeapSize = 1024 * 1024; // 1MB
1098
1099sp<IMemory> MediaPlayerService::decode(const char* url, uint32_t *pSampleRate, int* pNumChannels, int* pFormat)
1100{
1101    LOGV("decode(%s)", url);
1102    sp<MemoryBase> mem;
1103    sp<MediaPlayerBase> player;
1104
1105    // Protect our precious, precious DRMd ringtones by only allowing
1106    // decoding of http, but not filesystem paths or content Uris.
1107    // If the application wants to decode those, it should open a
1108    // filedescriptor for them and use that.
1109    if (url != NULL && strncmp(url, "http://", 7) != 0) {
1110        LOGD("Can't decode %s by path, use filedescriptor instead", url);
1111        return mem;
1112    }
1113
1114    player_type playerType = getPlayerType(url);
1115    LOGV("player type = %d", playerType);
1116
1117    // create the right type of player
1118    sp<AudioCache> cache = new AudioCache(url);
1119    player = android::createPlayer(playerType, cache.get(), cache->notify);
1120    if (player == NULL) goto Exit;
1121    if (player->hardwareOutput()) goto Exit;
1122
1123    static_cast<MediaPlayerInterface*>(player.get())->setAudioSink(cache);
1124
1125    // set data source
1126    if (player->setDataSource(url) != NO_ERROR) goto Exit;
1127
1128    LOGV("prepare");
1129    player->prepareAsync();
1130
1131    LOGV("wait for prepare");
1132    if (cache->wait() != NO_ERROR) goto Exit;
1133
1134    LOGV("start");
1135    player->start();
1136
1137    LOGV("wait for playback complete");
1138    cache->wait();
1139    // in case of error, return what was successfully decoded.
1140    if (cache->size() == 0) {
1141        goto Exit;
1142    }
1143
1144    mem = new MemoryBase(cache->getHeap(), 0, cache->size());
1145    *pSampleRate = cache->sampleRate();
1146    *pNumChannels = cache->channelCount();
1147    *pFormat = (int)cache->format();
1148    LOGV("return memory @ %p, sampleRate=%u, channelCount = %d, format = %d", mem->pointer(), *pSampleRate, *pNumChannels, *pFormat);
1149
1150Exit:
1151    if (player != 0) player->reset();
1152    return mem;
1153}
1154
1155sp<IMemory> MediaPlayerService::decode(int fd, int64_t offset, int64_t length, uint32_t *pSampleRate, int* pNumChannels, int* pFormat)
1156{
1157    LOGV("decode(%d, %lld, %lld)", fd, offset, length);
1158    sp<MemoryBase> mem;
1159    sp<MediaPlayerBase> player;
1160
1161    player_type playerType = getPlayerType(fd, offset, length);
1162    LOGV("player type = %d", playerType);
1163
1164    // create the right type of player
1165    sp<AudioCache> cache = new AudioCache("decode_fd");
1166    player = android::createPlayer(playerType, cache.get(), cache->notify);
1167    if (player == NULL) goto Exit;
1168    if (player->hardwareOutput()) goto Exit;
1169
1170    static_cast<MediaPlayerInterface*>(player.get())->setAudioSink(cache);
1171
1172    // set data source
1173    if (player->setDataSource(fd, offset, length) != NO_ERROR) goto Exit;
1174
1175    LOGV("prepare");
1176    player->prepareAsync();
1177
1178    LOGV("wait for prepare");
1179    if (cache->wait() != NO_ERROR) goto Exit;
1180
1181    LOGV("start");
1182    player->start();
1183
1184    LOGV("wait for playback complete");
1185    cache->wait();
1186    // in case of error, return what was successfully decoded.
1187    if (cache->size() == 0) {
1188        goto Exit;
1189    }
1190
1191    mem = new MemoryBase(cache->getHeap(), 0, cache->size());
1192    *pSampleRate = cache->sampleRate();
1193    *pNumChannels = cache->channelCount();
1194    *pFormat = cache->format();
1195    LOGV("return memory @ %p, sampleRate=%u, channelCount = %d, format = %d", mem->pointer(), *pSampleRate, *pNumChannels, *pFormat);
1196
1197Exit:
1198    if (player != 0) player->reset();
1199    ::close(fd);
1200    return mem;
1201}
1202
1203
1204#undef LOG_TAG
1205#define LOG_TAG "AudioSink"
1206MediaPlayerService::AudioOutput::AudioOutput(int sessionId)
1207    : mCallback(NULL),
1208      mCallbackCookie(NULL),
1209      mSessionId(sessionId) {
1210    LOGV("AudioOutput(%d)", sessionId);
1211    mTrack = 0;
1212    mStreamType = AUDIO_STREAM_MUSIC;
1213    mLeftVolume = 1.0;
1214    mRightVolume = 1.0;
1215    mLatency = 0;
1216    mMsecsPerFrame = 0;
1217    mAuxEffectId = 0;
1218    mSendLevel = 0.0;
1219    setMinBufferCount();
1220}
1221
1222MediaPlayerService::AudioOutput::~AudioOutput()
1223{
1224    close();
1225}
1226
1227void MediaPlayerService::AudioOutput::setMinBufferCount()
1228{
1229    char value[PROPERTY_VALUE_MAX];
1230    if (property_get("ro.kernel.qemu", value, 0)) {
1231        mIsOnEmulator = true;
1232        mMinBufferCount = 12;  // to prevent systematic buffer underrun for emulator
1233    }
1234}
1235
1236bool MediaPlayerService::AudioOutput::isOnEmulator()
1237{
1238    setMinBufferCount();
1239    return mIsOnEmulator;
1240}
1241
1242int MediaPlayerService::AudioOutput::getMinBufferCount()
1243{
1244    setMinBufferCount();
1245    return mMinBufferCount;
1246}
1247
1248ssize_t MediaPlayerService::AudioOutput::bufferSize() const
1249{
1250    if (mTrack == 0) return NO_INIT;
1251    return mTrack->frameCount() * frameSize();
1252}
1253
1254ssize_t MediaPlayerService::AudioOutput::frameCount() const
1255{
1256    if (mTrack == 0) return NO_INIT;
1257    return mTrack->frameCount();
1258}
1259
1260ssize_t MediaPlayerService::AudioOutput::channelCount() const
1261{
1262    if (mTrack == 0) return NO_INIT;
1263    return mTrack->channelCount();
1264}
1265
1266ssize_t MediaPlayerService::AudioOutput::frameSize() const
1267{
1268    if (mTrack == 0) return NO_INIT;
1269    return mTrack->frameSize();
1270}
1271
1272uint32_t MediaPlayerService::AudioOutput::latency () const
1273{
1274    return mLatency;
1275}
1276
1277float MediaPlayerService::AudioOutput::msecsPerFrame() const
1278{
1279    return mMsecsPerFrame;
1280}
1281
1282status_t MediaPlayerService::AudioOutput::getPosition(uint32_t *position)
1283{
1284    if (mTrack == 0) return NO_INIT;
1285    return mTrack->getPosition(position);
1286}
1287
1288status_t MediaPlayerService::AudioOutput::open(
1289        uint32_t sampleRate, int channelCount, int format, int bufferCount,
1290        AudioCallback cb, void *cookie)
1291{
1292    mCallback = cb;
1293    mCallbackCookie = cookie;
1294
1295    // Check argument "bufferCount" against the mininum buffer count
1296    if (bufferCount < mMinBufferCount) {
1297        LOGD("bufferCount (%d) is too small and increased to %d", bufferCount, mMinBufferCount);
1298        bufferCount = mMinBufferCount;
1299
1300    }
1301    LOGV("open(%u, %d, %d, %d, %d)", sampleRate, channelCount, format, bufferCount,mSessionId);
1302    if (mTrack) close();
1303    int afSampleRate;
1304    int afFrameCount;
1305    int frameCount;
1306
1307    if (AudioSystem::getOutputFrameCount(&afFrameCount, mStreamType) != NO_ERROR) {
1308        return NO_INIT;
1309    }
1310    if (AudioSystem::getOutputSamplingRate(&afSampleRate, mStreamType) != NO_ERROR) {
1311        return NO_INIT;
1312    }
1313
1314    frameCount = (sampleRate*afFrameCount*bufferCount)/afSampleRate;
1315
1316    AudioTrack *t;
1317    if (mCallback != NULL) {
1318        t = new AudioTrack(
1319                mStreamType,
1320                sampleRate,
1321                format,
1322                (channelCount == 2) ? AUDIO_CHANNEL_OUT_STEREO : AUDIO_CHANNEL_OUT_MONO,
1323                frameCount,
1324                0 /* flags */,
1325                CallbackWrapper,
1326                this,
1327                0,
1328                mSessionId);
1329    } else {
1330        t = new AudioTrack(
1331                mStreamType,
1332                sampleRate,
1333                format,
1334                (channelCount == 2) ? AUDIO_CHANNEL_OUT_STEREO : AUDIO_CHANNEL_OUT_MONO,
1335                frameCount,
1336                0,
1337                NULL,
1338                NULL,
1339                0,
1340                mSessionId);
1341    }
1342
1343    if ((t == 0) || (t->initCheck() != NO_ERROR)) {
1344        LOGE("Unable to create audio track");
1345        delete t;
1346        return NO_INIT;
1347    }
1348
1349    LOGV("setVolume");
1350    t->setVolume(mLeftVolume, mRightVolume);
1351
1352    mMsecsPerFrame = 1.e3 / (float) sampleRate;
1353    mLatency = t->latency();
1354    mTrack = t;
1355
1356    t->setAuxEffectSendLevel(mSendLevel);
1357    return t->attachAuxEffect(mAuxEffectId);;
1358}
1359
1360void MediaPlayerService::AudioOutput::start()
1361{
1362    LOGV("start");
1363    if (mTrack) {
1364        mTrack->setVolume(mLeftVolume, mRightVolume);
1365        mTrack->setAuxEffectSendLevel(mSendLevel);
1366        mTrack->start();
1367    }
1368}
1369
1370
1371
1372ssize_t MediaPlayerService::AudioOutput::write(const void* buffer, size_t size)
1373{
1374    LOG_FATAL_IF(mCallback != NULL, "Don't call write if supplying a callback.");
1375
1376    //LOGV("write(%p, %u)", buffer, size);
1377    if (mTrack) {
1378        ssize_t ret = mTrack->write(buffer, size);
1379        return ret;
1380    }
1381    return NO_INIT;
1382}
1383
1384void MediaPlayerService::AudioOutput::stop()
1385{
1386    LOGV("stop");
1387    if (mTrack) mTrack->stop();
1388}
1389
1390void MediaPlayerService::AudioOutput::flush()
1391{
1392    LOGV("flush");
1393    if (mTrack) mTrack->flush();
1394}
1395
1396void MediaPlayerService::AudioOutput::pause()
1397{
1398    LOGV("pause");
1399    if (mTrack) mTrack->pause();
1400}
1401
1402void MediaPlayerService::AudioOutput::close()
1403{
1404    LOGV("close");
1405    delete mTrack;
1406    mTrack = 0;
1407}
1408
1409void MediaPlayerService::AudioOutput::setVolume(float left, float right)
1410{
1411    LOGV("setVolume(%f, %f)", left, right);
1412    mLeftVolume = left;
1413    mRightVolume = right;
1414    if (mTrack) {
1415        mTrack->setVolume(left, right);
1416    }
1417}
1418
1419status_t MediaPlayerService::AudioOutput::setAuxEffectSendLevel(float level)
1420{
1421    LOGV("setAuxEffectSendLevel(%f)", level);
1422    mSendLevel = level;
1423    if (mTrack) {
1424        return mTrack->setAuxEffectSendLevel(level);
1425    }
1426    return NO_ERROR;
1427}
1428
1429status_t MediaPlayerService::AudioOutput::attachAuxEffect(int effectId)
1430{
1431    LOGV("attachAuxEffect(%d)", effectId);
1432    mAuxEffectId = effectId;
1433    if (mTrack) {
1434        return mTrack->attachAuxEffect(effectId);
1435    }
1436    return NO_ERROR;
1437}
1438
1439// static
1440void MediaPlayerService::AudioOutput::CallbackWrapper(
1441        int event, void *cookie, void *info) {
1442    //LOGV("callbackwrapper");
1443    if (event != AudioTrack::EVENT_MORE_DATA) {
1444        return;
1445    }
1446
1447    AudioOutput *me = (AudioOutput *)cookie;
1448    AudioTrack::Buffer *buffer = (AudioTrack::Buffer *)info;
1449
1450    size_t actualSize = (*me->mCallback)(
1451            me, buffer->raw, buffer->size, me->mCallbackCookie);
1452
1453    if (actualSize == 0 && buffer->size > 0) {
1454        // We've reached EOS but the audio track is not stopped yet,
1455        // keep playing silence.
1456
1457        memset(buffer->raw, 0, buffer->size);
1458        actualSize = buffer->size;
1459    }
1460
1461    buffer->size = actualSize;
1462}
1463
1464int MediaPlayerService::AudioOutput::getSessionId()
1465{
1466    return mSessionId;
1467}
1468
1469#undef LOG_TAG
1470#define LOG_TAG "AudioCache"
1471MediaPlayerService::AudioCache::AudioCache(const char* name) :
1472    mChannelCount(0), mFrameCount(1024), mSampleRate(0), mSize(0),
1473    mError(NO_ERROR), mCommandComplete(false)
1474{
1475    // create ashmem heap
1476    mHeap = new MemoryHeapBase(kDefaultHeapSize, 0, name);
1477}
1478
1479uint32_t MediaPlayerService::AudioCache::latency () const
1480{
1481    return 0;
1482}
1483
1484float MediaPlayerService::AudioCache::msecsPerFrame() const
1485{
1486    return mMsecsPerFrame;
1487}
1488
1489status_t MediaPlayerService::AudioCache::getPosition(uint32_t *position)
1490{
1491    if (position == 0) return BAD_VALUE;
1492    *position = mSize;
1493    return NO_ERROR;
1494}
1495
1496////////////////////////////////////////////////////////////////////////////////
1497
1498struct CallbackThread : public Thread {
1499    CallbackThread(const wp<MediaPlayerBase::AudioSink> &sink,
1500                   MediaPlayerBase::AudioSink::AudioCallback cb,
1501                   void *cookie);
1502
1503protected:
1504    virtual ~CallbackThread();
1505
1506    virtual bool threadLoop();
1507
1508private:
1509    wp<MediaPlayerBase::AudioSink> mSink;
1510    MediaPlayerBase::AudioSink::AudioCallback mCallback;
1511    void *mCookie;
1512    void *mBuffer;
1513    size_t mBufferSize;
1514
1515    CallbackThread(const CallbackThread &);
1516    CallbackThread &operator=(const CallbackThread &);
1517};
1518
1519CallbackThread::CallbackThread(
1520        const wp<MediaPlayerBase::AudioSink> &sink,
1521        MediaPlayerBase::AudioSink::AudioCallback cb,
1522        void *cookie)
1523    : mSink(sink),
1524      mCallback(cb),
1525      mCookie(cookie),
1526      mBuffer(NULL),
1527      mBufferSize(0) {
1528}
1529
1530CallbackThread::~CallbackThread() {
1531    if (mBuffer) {
1532        free(mBuffer);
1533        mBuffer = NULL;
1534    }
1535}
1536
1537bool CallbackThread::threadLoop() {
1538    sp<MediaPlayerBase::AudioSink> sink = mSink.promote();
1539    if (sink == NULL) {
1540        return false;
1541    }
1542
1543    if (mBuffer == NULL) {
1544        mBufferSize = sink->bufferSize();
1545        mBuffer = malloc(mBufferSize);
1546    }
1547
1548    size_t actualSize =
1549        (*mCallback)(sink.get(), mBuffer, mBufferSize, mCookie);
1550
1551    if (actualSize > 0) {
1552        sink->write(mBuffer, actualSize);
1553    }
1554
1555    return true;
1556}
1557
1558////////////////////////////////////////////////////////////////////////////////
1559
1560status_t MediaPlayerService::AudioCache::open(
1561        uint32_t sampleRate, int channelCount, int format, int bufferCount,
1562        AudioCallback cb, void *cookie)
1563{
1564    LOGV("open(%u, %d, %d, %d)", sampleRate, channelCount, format, bufferCount);
1565    if (mHeap->getHeapID() < 0) {
1566        return NO_INIT;
1567    }
1568
1569    mSampleRate = sampleRate;
1570    mChannelCount = (uint16_t)channelCount;
1571    mFormat = (uint16_t)format;
1572    mMsecsPerFrame = 1.e3 / (float) sampleRate;
1573
1574    if (cb != NULL) {
1575        mCallbackThread = new CallbackThread(this, cb, cookie);
1576    }
1577    return NO_ERROR;
1578}
1579
1580void MediaPlayerService::AudioCache::start() {
1581    if (mCallbackThread != NULL) {
1582        mCallbackThread->run("AudioCache callback");
1583    }
1584}
1585
1586void MediaPlayerService::AudioCache::stop() {
1587    if (mCallbackThread != NULL) {
1588        mCallbackThread->requestExitAndWait();
1589    }
1590}
1591
1592ssize_t MediaPlayerService::AudioCache::write(const void* buffer, size_t size)
1593{
1594    LOGV("write(%p, %u)", buffer, size);
1595    if ((buffer == 0) || (size == 0)) return size;
1596
1597    uint8_t* p = static_cast<uint8_t*>(mHeap->getBase());
1598    if (p == NULL) return NO_INIT;
1599    p += mSize;
1600    LOGV("memcpy(%p, %p, %u)", p, buffer, size);
1601    if (mSize + size > mHeap->getSize()) {
1602        LOGE("Heap size overflow! req size: %d, max size: %d", (mSize + size), mHeap->getSize());
1603        size = mHeap->getSize() - mSize;
1604    }
1605    memcpy(p, buffer, size);
1606    mSize += size;
1607    return size;
1608}
1609
1610// call with lock held
1611status_t MediaPlayerService::AudioCache::wait()
1612{
1613    Mutex::Autolock lock(mLock);
1614    while (!mCommandComplete) {
1615        mSignal.wait(mLock);
1616    }
1617    mCommandComplete = false;
1618
1619    if (mError == NO_ERROR) {
1620        LOGV("wait - success");
1621    } else {
1622        LOGV("wait - error");
1623    }
1624    return mError;
1625}
1626
1627void MediaPlayerService::AudioCache::notify(
1628        void* cookie, int msg, int ext1, int ext2, const Parcel *obj)
1629{
1630    LOGV("notify(%p, %d, %d, %d)", cookie, msg, ext1, ext2);
1631    AudioCache* p = static_cast<AudioCache*>(cookie);
1632
1633    // ignore buffering messages
1634    switch (msg)
1635    {
1636    case MEDIA_ERROR:
1637        LOGE("Error %d, %d occurred", ext1, ext2);
1638        p->mError = ext1;
1639        break;
1640    case MEDIA_PREPARED:
1641        LOGV("prepared");
1642        break;
1643    case MEDIA_PLAYBACK_COMPLETE:
1644        LOGV("playback complete");
1645        break;
1646    default:
1647        LOGV("ignored");
1648        return;
1649    }
1650
1651    // wake up thread
1652    Mutex::Autolock lock(p->mLock);
1653    p->mCommandComplete = true;
1654    p->mSignal.signal();
1655}
1656
1657int MediaPlayerService::AudioCache::getSessionId()
1658{
1659    return 0;
1660}
1661
1662void MediaPlayerService::addBatteryData(uint32_t params)
1663{
1664    Mutex::Autolock lock(mLock);
1665
1666    int32_t time = systemTime() / 1000000L;
1667
1668    // change audio output devices. This notification comes from AudioFlinger
1669    if ((params & kBatteryDataSpeakerOn)
1670            || (params & kBatteryDataOtherAudioDeviceOn)) {
1671
1672        int deviceOn[NUM_AUDIO_DEVICES];
1673        for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
1674            deviceOn[i] = 0;
1675        }
1676
1677        if ((params & kBatteryDataSpeakerOn)
1678                && (params & kBatteryDataOtherAudioDeviceOn)) {
1679            deviceOn[SPEAKER_AND_OTHER] = 1;
1680        } else if (params & kBatteryDataSpeakerOn) {
1681            deviceOn[SPEAKER] = 1;
1682        } else {
1683            deviceOn[OTHER_AUDIO_DEVICE] = 1;
1684        }
1685
1686        for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
1687            if (mBatteryAudio.deviceOn[i] != deviceOn[i]){
1688
1689                if (mBatteryAudio.refCount > 0) { // if playing audio
1690                    if (!deviceOn[i]) {
1691                        mBatteryAudio.lastTime[i] += time;
1692                        mBatteryAudio.totalTime[i] += mBatteryAudio.lastTime[i];
1693                        mBatteryAudio.lastTime[i] = 0;
1694                    } else {
1695                        mBatteryAudio.lastTime[i] = 0 - time;
1696                    }
1697                }
1698
1699                mBatteryAudio.deviceOn[i] = deviceOn[i];
1700            }
1701        }
1702        return;
1703    }
1704
1705    // an sudio stream is started
1706    if (params & kBatteryDataAudioFlingerStart) {
1707        // record the start time only if currently no other audio
1708        // is being played
1709        if (mBatteryAudio.refCount == 0) {
1710            for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
1711                if (mBatteryAudio.deviceOn[i]) {
1712                    mBatteryAudio.lastTime[i] -= time;
1713                }
1714            }
1715        }
1716
1717        mBatteryAudio.refCount ++;
1718        return;
1719
1720    } else if (params & kBatteryDataAudioFlingerStop) {
1721        if (mBatteryAudio.refCount <= 0) {
1722            LOGW("Battery track warning: refCount is <= 0");
1723            return;
1724        }
1725
1726        // record the stop time only if currently this is the only
1727        // audio being played
1728        if (mBatteryAudio.refCount == 1) {
1729            for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
1730                if (mBatteryAudio.deviceOn[i]) {
1731                    mBatteryAudio.lastTime[i] += time;
1732                    mBatteryAudio.totalTime[i] += mBatteryAudio.lastTime[i];
1733                    mBatteryAudio.lastTime[i] = 0;
1734                }
1735            }
1736        }
1737
1738        mBatteryAudio.refCount --;
1739        return;
1740    }
1741
1742    int uid = IPCThreadState::self()->getCallingUid();
1743    if (uid == AID_MEDIA) {
1744        return;
1745    }
1746    int index = mBatteryData.indexOfKey(uid);
1747
1748    if (index < 0) { // create a new entry for this UID
1749        BatteryUsageInfo info;
1750        info.audioTotalTime = 0;
1751        info.videoTotalTime = 0;
1752        info.audioLastTime = 0;
1753        info.videoLastTime = 0;
1754        info.refCount = 0;
1755
1756        if (mBatteryData.add(uid, info) == NO_MEMORY) {
1757            LOGE("Battery track error: no memory for new app");
1758            return;
1759        }
1760    }
1761
1762    BatteryUsageInfo &info = mBatteryData.editValueFor(uid);
1763
1764    if (params & kBatteryDataCodecStarted) {
1765        if (params & kBatteryDataTrackAudio) {
1766            info.audioLastTime -= time;
1767            info.refCount ++;
1768        }
1769        if (params & kBatteryDataTrackVideo) {
1770            info.videoLastTime -= time;
1771            info.refCount ++;
1772        }
1773    } else {
1774        if (info.refCount == 0) {
1775            LOGW("Battery track warning: refCount is already 0");
1776            return;
1777        } else if (info.refCount < 0) {
1778            LOGE("Battery track error: refCount < 0");
1779            mBatteryData.removeItem(uid);
1780            return;
1781        }
1782
1783        if (params & kBatteryDataTrackAudio) {
1784            info.audioLastTime += time;
1785            info.refCount --;
1786        }
1787        if (params & kBatteryDataTrackVideo) {
1788            info.videoLastTime += time;
1789            info.refCount --;
1790        }
1791
1792        // no stream is being played by this UID
1793        if (info.refCount == 0) {
1794            info.audioTotalTime += info.audioLastTime;
1795            info.audioLastTime = 0;
1796            info.videoTotalTime += info.videoLastTime;
1797            info.videoLastTime = 0;
1798        }
1799    }
1800}
1801
1802status_t MediaPlayerService::pullBatteryData(Parcel* reply) {
1803    Mutex::Autolock lock(mLock);
1804
1805    // audio output devices usage
1806    int32_t time = systemTime() / 1000000L; //in ms
1807    int32_t totalTime;
1808
1809    for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
1810        totalTime = mBatteryAudio.totalTime[i];
1811
1812        if (mBatteryAudio.deviceOn[i]
1813            && (mBatteryAudio.lastTime[i] != 0)) {
1814                int32_t tmpTime = mBatteryAudio.lastTime[i] + time;
1815                totalTime += tmpTime;
1816        }
1817
1818        reply->writeInt32(totalTime);
1819        // reset the total time
1820        mBatteryAudio.totalTime[i] = 0;
1821   }
1822
1823    // codec usage
1824    BatteryUsageInfo info;
1825    int size = mBatteryData.size();
1826
1827    reply->writeInt32(size);
1828    int i = 0;
1829
1830    while (i < size) {
1831        info = mBatteryData.valueAt(i);
1832
1833        reply->writeInt32(mBatteryData.keyAt(i)); //UID
1834        reply->writeInt32(info.audioTotalTime);
1835        reply->writeInt32(info.videoTotalTime);
1836
1837        info.audioTotalTime = 0;
1838        info.videoTotalTime = 0;
1839
1840        // remove the UID entry where no stream is being played
1841        if (info.refCount <= 0) {
1842            mBatteryData.removeItemsAt(i);
1843            size --;
1844            i --;
1845        }
1846        i++;
1847    }
1848    return NO_ERROR;
1849}
1850} // namespace android
1851