MediaPlayerService.cpp revision 9cb839a0fcc98fe4278b39afb8b6d664c04f1673 
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                snprintf(buffer, 255, " MediaRecorderClient pid(%d)\n", c->mPid);
378                result.append(buffer);
379                write(fd, result.string(), result.size());
380                result = "\n";
381                c->dump(fd, args);
382            }
383        }
384
385        result.append(" Files opened and/or mapped:\n");
386        snprintf(buffer, SIZE, "/proc/%d/maps", gettid());
387        FILE *f = fopen(buffer, "r");
388        if (f) {
389            while (!feof(f)) {
390                fgets(buffer, SIZE, f);
391                if (strstr(buffer, " /mnt/sdcard/") ||
392                    strstr(buffer, " /system/sounds/") ||
393                    strstr(buffer, " /data/") ||
394                    strstr(buffer, " /system/media/")) {
395                    result.append("  ");
396                    result.append(buffer);
397                }
398            }
399            fclose(f);
400        } else {
401            result.append("couldn't open ");
402            result.append(buffer);
403            result.append("\n");
404        }
405
406        snprintf(buffer, SIZE, "/proc/%d/fd", gettid());
407        DIR *d = opendir(buffer);
408        if (d) {
409            struct dirent *ent;
410            while((ent = readdir(d)) != NULL) {
411                if (strcmp(ent->d_name,".") && strcmp(ent->d_name,"..")) {
412                    snprintf(buffer, SIZE, "/proc/%d/fd/%s", gettid(), ent->d_name);
413                    struct stat s;
414                    if (lstat(buffer, &s) == 0) {
415                        if ((s.st_mode & S_IFMT) == S_IFLNK) {
416                            char linkto[256];
417                            int len = readlink(buffer, linkto, sizeof(linkto));
418                            if(len > 0) {
419                                if(len > 255) {
420                                    linkto[252] = '.';
421                                    linkto[253] = '.';
422                                    linkto[254] = '.';
423                                    linkto[255] = 0;
424                                } else {
425                                    linkto[len] = 0;
426                                }
427                                if (strstr(linkto, "/mnt/sdcard/") == linkto ||
428                                    strstr(linkto, "/system/sounds/") == linkto ||
429                                    strstr(linkto, "/data/") == linkto ||
430                                    strstr(linkto, "/system/media/") == linkto) {
431                                    result.append("  ");
432                                    result.append(buffer);
433                                    result.append(" -> ");
434                                    result.append(linkto);
435                                    result.append("\n");
436                                }
437                            }
438                        } else {
439                            result.append("  unexpected type for ");
440                            result.append(buffer);
441                            result.append("\n");
442                        }
443                    }
444                }
445            }
446            closedir(d);
447        } else {
448            result.append("couldn't open ");
449            result.append(buffer);
450            result.append("\n");
451        }
452
453        bool dumpMem = false;
454        for (size_t i = 0; i < args.size(); i++) {
455            if (args[i] == String16("-m")) {
456                dumpMem = true;
457            }
458        }
459        if (dumpMem) {
460            dumpMemoryAddresses(fd);
461        }
462    }
463    write(fd, result.string(), result.size());
464    return NO_ERROR;
465}
466
467void MediaPlayerService::removeClient(wp<Client> client)
468{
469    Mutex::Autolock lock(mLock);
470    mClients.remove(client);
471}
472
473MediaPlayerService::Client::Client(
474        const sp<MediaPlayerService>& service, pid_t pid,
475        int32_t connId, const sp<IMediaPlayerClient>& client,
476        int audioSessionId, uid_t uid)
477{
478    LOGV("Client(%d) constructor", connId);
479    mPid = pid;
480    mConnId = connId;
481    mService = service;
482    mClient = client;
483    mLoop = false;
484    mStatus = NO_INIT;
485    mAudioSessionId = audioSessionId;
486    mUID = uid;
487
488#if CALLBACK_ANTAGONIZER
489    LOGD("create Antagonizer");
490    mAntagonizer = new Antagonizer(notify, this);
491#endif
492}
493
494MediaPlayerService::Client::~Client()
495{
496    LOGV("Client(%d) destructor pid = %d", mConnId, mPid);
497    mAudioOutput.clear();
498    wp<Client> client(this);
499    disconnect();
500    mService->removeClient(client);
501}
502
503void MediaPlayerService::Client::disconnect()
504{
505    LOGV("disconnect(%d) from pid %d", mConnId, mPid);
506    // grab local reference and clear main reference to prevent future
507    // access to object
508    sp<MediaPlayerBase> p;
509    {
510        Mutex::Autolock l(mLock);
511        p = mPlayer;
512    }
513    mClient.clear();
514
515    mPlayer.clear();
516
517    // clear the notification to prevent callbacks to dead client
518    // and reset the player. We assume the player will serialize
519    // access to itself if necessary.
520    if (p != 0) {
521        p->setNotifyCallback(0, 0);
522#if CALLBACK_ANTAGONIZER
523        LOGD("kill Antagonizer");
524        mAntagonizer->kill();
525#endif
526        p->reset();
527    }
528
529    IPCThreadState::self()->flushCommands();
530}
531
532static player_type getDefaultPlayerType() {
533    return STAGEFRIGHT_PLAYER;
534}
535
536player_type getPlayerType(int fd, int64_t offset, int64_t length)
537{
538    char buf[20];
539    lseek(fd, offset, SEEK_SET);
540    read(fd, buf, sizeof(buf));
541    lseek(fd, offset, SEEK_SET);
542
543    long ident = *((long*)buf);
544
545    // Ogg vorbis?
546    if (ident == 0x5367674f) // 'OggS'
547        return STAGEFRIGHT_PLAYER;
548
549    // Some kind of MIDI?
550    EAS_DATA_HANDLE easdata;
551    if (EAS_Init(&easdata) == EAS_SUCCESS) {
552        EAS_FILE locator;
553        locator.path = NULL;
554        locator.fd = fd;
555        locator.offset = offset;
556        locator.length = length;
557        EAS_HANDLE  eashandle;
558        if (EAS_OpenFile(easdata, &locator, &eashandle) == EAS_SUCCESS) {
559            EAS_CloseFile(easdata, eashandle);
560            EAS_Shutdown(easdata);
561            return SONIVOX_PLAYER;
562        }
563        EAS_Shutdown(easdata);
564    }
565
566    return getDefaultPlayerType();
567}
568
569player_type getPlayerType(const char* url)
570{
571    if (TestPlayerStub::canBeUsed(url)) {
572        return TEST_PLAYER;
573    }
574
575    if (!strncasecmp("http://", url, 7)
576            || !strncasecmp("https://", url, 8)) {
577        size_t len = strlen(url);
578        if (len >= 5 && !strcasecmp(".m3u8", &url[len - 5])) {
579            return NU_PLAYER;
580        }
581
582        if (strstr(url,"m3u8")) {
583            return NU_PLAYER;
584        }
585    }
586
587    // use MidiFile for MIDI extensions
588    int lenURL = strlen(url);
589    for (int i = 0; i < NELEM(FILE_EXTS); ++i) {
590        int len = strlen(FILE_EXTS[i].extension);
591        int start = lenURL - len;
592        if (start > 0) {
593            if (!strncasecmp(url + start, FILE_EXTS[i].extension, len)) {
594                return FILE_EXTS[i].playertype;
595            }
596        }
597    }
598
599    return getDefaultPlayerType();
600}
601
602static sp<MediaPlayerBase> createPlayer(player_type playerType, void* cookie,
603        notify_callback_f notifyFunc)
604{
605    sp<MediaPlayerBase> p;
606    switch (playerType) {
607        case SONIVOX_PLAYER:
608            LOGV(" create MidiFile");
609            p = new MidiFile();
610            break;
611        case STAGEFRIGHT_PLAYER:
612            LOGV(" create StagefrightPlayer");
613            p = new StagefrightPlayer;
614            break;
615        case NU_PLAYER:
616            LOGV(" create NuPlayer");
617            p = new NuPlayerDriver;
618            break;
619        case TEST_PLAYER:
620            LOGV("Create Test Player stub");
621            p = new TestPlayerStub();
622            break;
623        default:
624            LOGE("Unknown player type: %d", playerType);
625            return NULL;
626    }
627    if (p != NULL) {
628        if (p->initCheck() == NO_ERROR) {
629            p->setNotifyCallback(cookie, notifyFunc);
630        } else {
631            p.clear();
632        }
633    }
634    if (p == NULL) {
635        LOGE("Failed to create player object");
636    }
637    return p;
638}
639
640sp<MediaPlayerBase> MediaPlayerService::Client::createPlayer(player_type playerType)
641{
642    // determine if we have the right player type
643    sp<MediaPlayerBase> p = mPlayer;
644    if ((p != NULL) && (p->playerType() != playerType)) {
645        LOGV("delete player");
646        p.clear();
647    }
648    if (p == NULL) {
649        p = android::createPlayer(playerType, this, notify);
650    }
651
652    if (p != NULL) {
653        p->setUID(mUID);
654    }
655
656    return p;
657}
658
659status_t MediaPlayerService::Client::setDataSource(
660        const char *url, const KeyedVector<String8, String8> *headers)
661{
662    LOGV("setDataSource(%s)", url);
663    if (url == NULL)
664        return UNKNOWN_ERROR;
665
666    if ((strncmp(url, "http://", 7) == 0) ||
667        (strncmp(url, "https://", 8) == 0) ||
668        (strncmp(url, "rtsp://", 7) == 0)) {
669        if (!checkPermission("android.permission.INTERNET")) {
670            return PERMISSION_DENIED;
671        }
672    }
673
674    if (strncmp(url, "content://", 10) == 0) {
675        // get a filedescriptor for the content Uri and
676        // pass it to the setDataSource(fd) method
677
678        String16 url16(url);
679        int fd = android::openContentProviderFile(url16);
680        if (fd < 0)
681        {
682            LOGE("Couldn't open fd for %s", url);
683            return UNKNOWN_ERROR;
684        }
685        setDataSource(fd, 0, 0x7fffffffffLL); // this sets mStatus
686        close(fd);
687        return mStatus;
688    } else {
689        player_type playerType = getPlayerType(url);
690        LOGV("player type = %d", playerType);
691
692        // create the right type of player
693        sp<MediaPlayerBase> p = createPlayer(playerType);
694        if (p == NULL) return NO_INIT;
695
696        if (!p->hardwareOutput()) {
697            mAudioOutput = new AudioOutput(mAudioSessionId);
698            static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput);
699        }
700
701        // now set data source
702        LOGV(" setDataSource");
703        mStatus = p->setDataSource(url, headers);
704        if (mStatus == NO_ERROR) {
705            mPlayer = p;
706        } else {
707            LOGE("  error: %d", mStatus);
708        }
709        return mStatus;
710    }
711}
712
713status_t MediaPlayerService::Client::setDataSource(int fd, int64_t offset, int64_t length)
714{
715    LOGV("setDataSource fd=%d, offset=%lld, length=%lld", fd, offset, length);
716    struct stat sb;
717    int ret = fstat(fd, &sb);
718    if (ret != 0) {
719        LOGE("fstat(%d) failed: %d, %s", fd, ret, strerror(errno));
720        return UNKNOWN_ERROR;
721    }
722
723    LOGV("st_dev  = %llu", sb.st_dev);
724    LOGV("st_mode = %u", sb.st_mode);
725    LOGV("st_uid  = %lu", sb.st_uid);
726    LOGV("st_gid  = %lu", sb.st_gid);
727    LOGV("st_size = %llu", sb.st_size);
728
729    if (offset >= sb.st_size) {
730        LOGE("offset error");
731        ::close(fd);
732        return UNKNOWN_ERROR;
733    }
734    if (offset + length > sb.st_size) {
735        length = sb.st_size - offset;
736        LOGV("calculated length = %lld", length);
737    }
738
739    player_type playerType = getPlayerType(fd, offset, length);
740    LOGV("player type = %d", playerType);
741
742    // create the right type of player
743    sp<MediaPlayerBase> p = createPlayer(playerType);
744    if (p == NULL) return NO_INIT;
745
746    if (!p->hardwareOutput()) {
747        mAudioOutput = new AudioOutput(mAudioSessionId);
748        static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput);
749    }
750
751    // now set data source
752    mStatus = p->setDataSource(fd, offset, length);
753    if (mStatus == NO_ERROR) mPlayer = p;
754
755    return mStatus;
756}
757
758status_t MediaPlayerService::Client::setDataSource(
759        const sp<IStreamSource> &source) {
760    // create the right type of player
761    sp<MediaPlayerBase> p = createPlayer(NU_PLAYER);
762
763    if (p == NULL) {
764        return NO_INIT;
765    }
766
767    if (!p->hardwareOutput()) {
768        mAudioOutput = new AudioOutput(mAudioSessionId);
769        static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput);
770    }
771
772    // now set data source
773    mStatus = p->setDataSource(source);
774
775    if (mStatus == OK) {
776        mPlayer = p;
777    }
778
779    return mStatus;
780}
781
782status_t MediaPlayerService::Client::setVideoSurface(const sp<Surface>& surface)
783{
784    LOGV("[%d] setVideoSurface(%p)", mConnId, surface.get());
785    sp<MediaPlayerBase> p = getPlayer();
786    if (p == 0) return UNKNOWN_ERROR;
787    return p->setVideoSurface(surface);
788}
789
790status_t MediaPlayerService::Client::setVideoSurfaceTexture(
791        const sp<ISurfaceTexture>& surfaceTexture)
792{
793    LOGV("[%d] setVideoSurfaceTexture(%p)", mConnId, surfaceTexture.get());
794    sp<MediaPlayerBase> p = getPlayer();
795    if (p == 0) return UNKNOWN_ERROR;
796    return p->setVideoSurfaceTexture(surfaceTexture);
797}
798
799status_t MediaPlayerService::Client::invoke(const Parcel& request,
800                                            Parcel *reply)
801{
802    sp<MediaPlayerBase> p = getPlayer();
803    if (p == NULL) return UNKNOWN_ERROR;
804    return p->invoke(request, reply);
805}
806
807// This call doesn't need to access the native player.
808status_t MediaPlayerService::Client::setMetadataFilter(const Parcel& filter)
809{
810    status_t status;
811    media::Metadata::Filter allow, drop;
812
813    if (unmarshallFilter(filter, &allow, &status) &&
814        unmarshallFilter(filter, &drop, &status)) {
815        Mutex::Autolock lock(mLock);
816
817        mMetadataAllow = allow;
818        mMetadataDrop = drop;
819    }
820    return status;
821}
822
823status_t MediaPlayerService::Client::getMetadata(
824        bool update_only, bool apply_filter, Parcel *reply)
825{
826    sp<MediaPlayerBase> player = getPlayer();
827    if (player == 0) return UNKNOWN_ERROR;
828
829    status_t status;
830    // Placeholder for the return code, updated by the caller.
831    reply->writeInt32(-1);
832
833    media::Metadata::Filter ids;
834
835    // We don't block notifications while we fetch the data. We clear
836    // mMetadataUpdated first so we don't lose notifications happening
837    // during the rest of this call.
838    {
839        Mutex::Autolock lock(mLock);
840        if (update_only) {
841            ids = mMetadataUpdated;
842        }
843        mMetadataUpdated.clear();
844    }
845
846    media::Metadata metadata(reply);
847
848    metadata.appendHeader();
849    status = player->getMetadata(ids, reply);
850
851    if (status != OK) {
852        metadata.resetParcel();
853        LOGE("getMetadata failed %d", status);
854        return status;
855    }
856
857    // FIXME: Implement filtering on the result. Not critical since
858    // filtering takes place on the update notifications already. This
859    // would be when all the metadata are fetch and a filter is set.
860
861    // Everything is fine, update the metadata length.
862    metadata.updateLength();
863    return OK;
864}
865
866status_t MediaPlayerService::Client::prepareAsync()
867{
868    LOGV("[%d] prepareAsync", mConnId);
869    sp<MediaPlayerBase> p = getPlayer();
870    if (p == 0) return UNKNOWN_ERROR;
871    status_t ret = p->prepareAsync();
872#if CALLBACK_ANTAGONIZER
873    LOGD("start Antagonizer");
874    if (ret == NO_ERROR) mAntagonizer->start();
875#endif
876    return ret;
877}
878
879status_t MediaPlayerService::Client::start()
880{
881    LOGV("[%d] start", mConnId);
882    sp<MediaPlayerBase> p = getPlayer();
883    if (p == 0) return UNKNOWN_ERROR;
884    p->setLooping(mLoop);
885    return p->start();
886}
887
888status_t MediaPlayerService::Client::stop()
889{
890    LOGV("[%d] stop", mConnId);
891    sp<MediaPlayerBase> p = getPlayer();
892    if (p == 0) return UNKNOWN_ERROR;
893    return p->stop();
894}
895
896status_t MediaPlayerService::Client::pause()
897{
898    LOGV("[%d] pause", mConnId);
899    sp<MediaPlayerBase> p = getPlayer();
900    if (p == 0) return UNKNOWN_ERROR;
901    return p->pause();
902}
903
904status_t MediaPlayerService::Client::isPlaying(bool* state)
905{
906    *state = false;
907    sp<MediaPlayerBase> p = getPlayer();
908    if (p == 0) return UNKNOWN_ERROR;
909    *state = p->isPlaying();
910    LOGV("[%d] isPlaying: %d", mConnId, *state);
911    return NO_ERROR;
912}
913
914status_t MediaPlayerService::Client::getCurrentPosition(int *msec)
915{
916    LOGV("getCurrentPosition");
917    sp<MediaPlayerBase> p = getPlayer();
918    if (p == 0) return UNKNOWN_ERROR;
919    status_t ret = p->getCurrentPosition(msec);
920    if (ret == NO_ERROR) {
921        LOGV("[%d] getCurrentPosition = %d", mConnId, *msec);
922    } else {
923        LOGE("getCurrentPosition returned %d", ret);
924    }
925    return ret;
926}
927
928status_t MediaPlayerService::Client::getDuration(int *msec)
929{
930    LOGV("getDuration");
931    sp<MediaPlayerBase> p = getPlayer();
932    if (p == 0) return UNKNOWN_ERROR;
933    status_t ret = p->getDuration(msec);
934    if (ret == NO_ERROR) {
935        LOGV("[%d] getDuration = %d", mConnId, *msec);
936    } else {
937        LOGE("getDuration returned %d", ret);
938    }
939    return ret;
940}
941
942status_t MediaPlayerService::Client::seekTo(int msec)
943{
944    LOGV("[%d] seekTo(%d)", mConnId, msec);
945    sp<MediaPlayerBase> p = getPlayer();
946    if (p == 0) return UNKNOWN_ERROR;
947    return p->seekTo(msec);
948}
949
950status_t MediaPlayerService::Client::reset()
951{
952    LOGV("[%d] reset", mConnId);
953    sp<MediaPlayerBase> p = getPlayer();
954    if (p == 0) return UNKNOWN_ERROR;
955    return p->reset();
956}
957
958status_t MediaPlayerService::Client::setAudioStreamType(int type)
959{
960    LOGV("[%d] setAudioStreamType(%d)", mConnId, type);
961    // TODO: for hardware output, call player instead
962    Mutex::Autolock l(mLock);
963    if (mAudioOutput != 0) mAudioOutput->setAudioStreamType(type);
964    return NO_ERROR;
965}
966
967status_t MediaPlayerService::Client::setLooping(int loop)
968{
969    LOGV("[%d] setLooping(%d)", mConnId, loop);
970    mLoop = loop;
971    sp<MediaPlayerBase> p = getPlayer();
972    if (p != 0) return p->setLooping(loop);
973    return NO_ERROR;
974}
975
976status_t MediaPlayerService::Client::setVolume(float leftVolume, float rightVolume)
977{
978    LOGV("[%d] setVolume(%f, %f)", mConnId, leftVolume, rightVolume);
979    // TODO: for hardware output, call player instead
980    Mutex::Autolock l(mLock);
981    if (mAudioOutput != 0) mAudioOutput->setVolume(leftVolume, rightVolume);
982    return NO_ERROR;
983}
984
985status_t MediaPlayerService::Client::setAuxEffectSendLevel(float level)
986{
987    LOGV("[%d] setAuxEffectSendLevel(%f)", mConnId, level);
988    Mutex::Autolock l(mLock);
989    if (mAudioOutput != 0) return mAudioOutput->setAuxEffectSendLevel(level);
990    return NO_ERROR;
991}
992
993status_t MediaPlayerService::Client::attachAuxEffect(int effectId)
994{
995    LOGV("[%d] attachAuxEffect(%d)", mConnId, effectId);
996    Mutex::Autolock l(mLock);
997    if (mAudioOutput != 0) return mAudioOutput->attachAuxEffect(effectId);
998    return NO_ERROR;
999}
1000
1001status_t MediaPlayerService::Client::setParameter(int key, const Parcel &request) {
1002    LOGV("[%d] setParameter(%d)", mConnId, key);
1003    sp<MediaPlayerBase> p = getPlayer();
1004    if (p == 0) return UNKNOWN_ERROR;
1005    return p->setParameter(key, request);
1006}
1007
1008status_t MediaPlayerService::Client::getParameter(int key, Parcel *reply) {
1009    LOGV("[%d] getParameter(%d)", mConnId, key);
1010    sp<MediaPlayerBase> p = getPlayer();
1011    if (p == 0) return UNKNOWN_ERROR;
1012    return p->getParameter(key, reply);
1013}
1014
1015void MediaPlayerService::Client::notify(
1016        void* cookie, int msg, int ext1, int ext2, const Parcel *obj)
1017{
1018    Client* client = static_cast<Client*>(cookie);
1019
1020    if (MEDIA_INFO == msg &&
1021        MEDIA_INFO_METADATA_UPDATE == ext1) {
1022        const media::Metadata::Type metadata_type = ext2;
1023
1024        if(client->shouldDropMetadata(metadata_type)) {
1025            return;
1026        }
1027
1028        // Update the list of metadata that have changed. getMetadata
1029        // also access mMetadataUpdated and clears it.
1030        client->addNewMetadataUpdate(metadata_type);
1031    }
1032    LOGV("[%d] notify (%p, %d, %d, %d)", client->mConnId, cookie, msg, ext1, ext2);
1033    client->mClient->notify(msg, ext1, ext2, obj);
1034}
1035
1036
1037bool MediaPlayerService::Client::shouldDropMetadata(media::Metadata::Type code) const
1038{
1039    Mutex::Autolock lock(mLock);
1040
1041    if (findMetadata(mMetadataDrop, code)) {
1042        return true;
1043    }
1044
1045    if (mMetadataAllow.isEmpty() || findMetadata(mMetadataAllow, code)) {
1046        return false;
1047    } else {
1048        return true;
1049    }
1050}
1051
1052
1053void MediaPlayerService::Client::addNewMetadataUpdate(media::Metadata::Type metadata_type) {
1054    Mutex::Autolock lock(mLock);
1055    if (mMetadataUpdated.indexOf(metadata_type) < 0) {
1056        mMetadataUpdated.add(metadata_type);
1057    }
1058}
1059
1060#if CALLBACK_ANTAGONIZER
1061const int Antagonizer::interval = 10000; // 10 msecs
1062
1063Antagonizer::Antagonizer(notify_callback_f cb, void* client) :
1064    mExit(false), mActive(false), mClient(client), mCb(cb)
1065{
1066    createThread(callbackThread, this);
1067}
1068
1069void Antagonizer::kill()
1070{
1071    Mutex::Autolock _l(mLock);
1072    mActive = false;
1073    mExit = true;
1074    mCondition.wait(mLock);
1075}
1076
1077int Antagonizer::callbackThread(void* user)
1078{
1079    LOGD("Antagonizer started");
1080    Antagonizer* p = reinterpret_cast<Antagonizer*>(user);
1081    while (!p->mExit) {
1082        if (p->mActive) {
1083            LOGV("send event");
1084            p->mCb(p->mClient, 0, 0, 0);
1085        }
1086        usleep(interval);
1087    }
1088    Mutex::Autolock _l(p->mLock);
1089    p->mCondition.signal();
1090    LOGD("Antagonizer stopped");
1091    return 0;
1092}
1093#endif
1094
1095static size_t kDefaultHeapSize = 1024 * 1024; // 1MB
1096
1097sp<IMemory> MediaPlayerService::decode(const char* url, uint32_t *pSampleRate, int* pNumChannels, int* pFormat)
1098{
1099    LOGV("decode(%s)", url);
1100    sp<MemoryBase> mem;
1101    sp<MediaPlayerBase> player;
1102
1103    // Protect our precious, precious DRMd ringtones by only allowing
1104    // decoding of http, but not filesystem paths or content Uris.
1105    // If the application wants to decode those, it should open a
1106    // filedescriptor for them and use that.
1107    if (url != NULL && strncmp(url, "http://", 7) != 0) {
1108        LOGD("Can't decode %s by path, use filedescriptor instead", url);
1109        return mem;
1110    }
1111
1112    player_type playerType = getPlayerType(url);
1113    LOGV("player type = %d", playerType);
1114
1115    // create the right type of player
1116    sp<AudioCache> cache = new AudioCache(url);
1117    player = android::createPlayer(playerType, cache.get(), cache->notify);
1118    if (player == NULL) goto Exit;
1119    if (player->hardwareOutput()) goto Exit;
1120
1121    static_cast<MediaPlayerInterface*>(player.get())->setAudioSink(cache);
1122
1123    // set data source
1124    if (player->setDataSource(url) != NO_ERROR) goto Exit;
1125
1126    LOGV("prepare");
1127    player->prepareAsync();
1128
1129    LOGV("wait for prepare");
1130    if (cache->wait() != NO_ERROR) goto Exit;
1131
1132    LOGV("start");
1133    player->start();
1134
1135    LOGV("wait for playback complete");
1136    cache->wait();
1137    // in case of error, return what was successfully decoded.
1138    if (cache->size() == 0) {
1139        goto Exit;
1140    }
1141
1142    mem = new MemoryBase(cache->getHeap(), 0, cache->size());
1143    *pSampleRate = cache->sampleRate();
1144    *pNumChannels = cache->channelCount();
1145    *pFormat = (int)cache->format();
1146    LOGV("return memory @ %p, sampleRate=%u, channelCount = %d, format = %d", mem->pointer(), *pSampleRate, *pNumChannels, *pFormat);
1147
1148Exit:
1149    if (player != 0) player->reset();
1150    return mem;
1151}
1152
1153sp<IMemory> MediaPlayerService::decode(int fd, int64_t offset, int64_t length, uint32_t *pSampleRate, int* pNumChannels, int* pFormat)
1154{
1155    LOGV("decode(%d, %lld, %lld)", fd, offset, length);
1156    sp<MemoryBase> mem;
1157    sp<MediaPlayerBase> player;
1158
1159    player_type playerType = getPlayerType(fd, offset, length);
1160    LOGV("player type = %d", playerType);
1161
1162    // create the right type of player
1163    sp<AudioCache> cache = new AudioCache("decode_fd");
1164    player = android::createPlayer(playerType, cache.get(), cache->notify);
1165    if (player == NULL) goto Exit;
1166    if (player->hardwareOutput()) goto Exit;
1167
1168    static_cast<MediaPlayerInterface*>(player.get())->setAudioSink(cache);
1169
1170    // set data source
1171    if (player->setDataSource(fd, offset, length) != NO_ERROR) goto Exit;
1172
1173    LOGV("prepare");
1174    player->prepareAsync();
1175
1176    LOGV("wait for prepare");
1177    if (cache->wait() != NO_ERROR) goto Exit;
1178
1179    LOGV("start");
1180    player->start();
1181
1182    LOGV("wait for playback complete");
1183    cache->wait();
1184    // in case of error, return what was successfully decoded.
1185    if (cache->size() == 0) {
1186        goto Exit;
1187    }
1188
1189    mem = new MemoryBase(cache->getHeap(), 0, cache->size());
1190    *pSampleRate = cache->sampleRate();
1191    *pNumChannels = cache->channelCount();
1192    *pFormat = cache->format();
1193    LOGV("return memory @ %p, sampleRate=%u, channelCount = %d, format = %d", mem->pointer(), *pSampleRate, *pNumChannels, *pFormat);
1194
1195Exit:
1196    if (player != 0) player->reset();
1197    ::close(fd);
1198    return mem;
1199}
1200
1201
1202#undef LOG_TAG
1203#define LOG_TAG "AudioSink"
1204MediaPlayerService::AudioOutput::AudioOutput(int sessionId)
1205    : mCallback(NULL),
1206      mCallbackCookie(NULL),
1207      mSessionId(sessionId) {
1208    LOGV("AudioOutput(%d)", sessionId);
1209    mTrack = 0;
1210    mStreamType = AUDIO_STREAM_MUSIC;
1211    mLeftVolume = 1.0;
1212    mRightVolume = 1.0;
1213    mLatency = 0;
1214    mMsecsPerFrame = 0;
1215    mAuxEffectId = 0;
1216    mSendLevel = 0.0;
1217    setMinBufferCount();
1218}
1219
1220MediaPlayerService::AudioOutput::~AudioOutput()
1221{
1222    close();
1223}
1224
1225void MediaPlayerService::AudioOutput::setMinBufferCount()
1226{
1227    char value[PROPERTY_VALUE_MAX];
1228    if (property_get("ro.kernel.qemu", value, 0)) {
1229        mIsOnEmulator = true;
1230        mMinBufferCount = 12;  // to prevent systematic buffer underrun for emulator
1231    }
1232}
1233
1234bool MediaPlayerService::AudioOutput::isOnEmulator()
1235{
1236    setMinBufferCount();
1237    return mIsOnEmulator;
1238}
1239
1240int MediaPlayerService::AudioOutput::getMinBufferCount()
1241{
1242    setMinBufferCount();
1243    return mMinBufferCount;
1244}
1245
1246ssize_t MediaPlayerService::AudioOutput::bufferSize() const
1247{
1248    if (mTrack == 0) return NO_INIT;
1249    return mTrack->frameCount() * frameSize();
1250}
1251
1252ssize_t MediaPlayerService::AudioOutput::frameCount() const
1253{
1254    if (mTrack == 0) return NO_INIT;
1255    return mTrack->frameCount();
1256}
1257
1258ssize_t MediaPlayerService::AudioOutput::channelCount() const
1259{
1260    if (mTrack == 0) return NO_INIT;
1261    return mTrack->channelCount();
1262}
1263
1264ssize_t MediaPlayerService::AudioOutput::frameSize() const
1265{
1266    if (mTrack == 0) return NO_INIT;
1267    return mTrack->frameSize();
1268}
1269
1270uint32_t MediaPlayerService::AudioOutput::latency () const
1271{
1272    return mLatency;
1273}
1274
1275float MediaPlayerService::AudioOutput::msecsPerFrame() const
1276{
1277    return mMsecsPerFrame;
1278}
1279
1280status_t MediaPlayerService::AudioOutput::getPosition(uint32_t *position)
1281{
1282    if (mTrack == 0) return NO_INIT;
1283    return mTrack->getPosition(position);
1284}
1285
1286status_t MediaPlayerService::AudioOutput::open(
1287        uint32_t sampleRate, int channelCount, int format, int bufferCount,
1288        AudioCallback cb, void *cookie)
1289{
1290    mCallback = cb;
1291    mCallbackCookie = cookie;
1292
1293    // Check argument "bufferCount" against the mininum buffer count
1294    if (bufferCount < mMinBufferCount) {
1295        LOGD("bufferCount (%d) is too small and increased to %d", bufferCount, mMinBufferCount);
1296        bufferCount = mMinBufferCount;
1297
1298    }
1299    LOGV("open(%u, %d, %d, %d, %d)", sampleRate, channelCount, format, bufferCount,mSessionId);
1300    if (mTrack) close();
1301    int afSampleRate;
1302    int afFrameCount;
1303    int frameCount;
1304
1305    if (AudioSystem::getOutputFrameCount(&afFrameCount, mStreamType) != NO_ERROR) {
1306        return NO_INIT;
1307    }
1308    if (AudioSystem::getOutputSamplingRate(&afSampleRate, mStreamType) != NO_ERROR) {
1309        return NO_INIT;
1310    }
1311
1312    frameCount = (sampleRate*afFrameCount*bufferCount)/afSampleRate;
1313
1314    AudioTrack *t;
1315    if (mCallback != NULL) {
1316        t = new AudioTrack(
1317                mStreamType,
1318                sampleRate,
1319                format,
1320                (channelCount == 2) ? AUDIO_CHANNEL_OUT_STEREO : AUDIO_CHANNEL_OUT_MONO,
1321                frameCount,
1322                0 /* flags */,
1323                CallbackWrapper,
1324                this,
1325                0,
1326                mSessionId);
1327    } else {
1328        t = new AudioTrack(
1329                mStreamType,
1330                sampleRate,
1331                format,
1332                (channelCount == 2) ? AUDIO_CHANNEL_OUT_STEREO : AUDIO_CHANNEL_OUT_MONO,
1333                frameCount,
1334                0,
1335                NULL,
1336                NULL,
1337                0,
1338                mSessionId);
1339    }
1340
1341    if ((t == 0) || (t->initCheck() != NO_ERROR)) {
1342        LOGE("Unable to create audio track");
1343        delete t;
1344        return NO_INIT;
1345    }
1346
1347    LOGV("setVolume");
1348    t->setVolume(mLeftVolume, mRightVolume);
1349
1350    mMsecsPerFrame = 1.e3 / (float) sampleRate;
1351    mLatency = t->latency();
1352    mTrack = t;
1353
1354    t->setAuxEffectSendLevel(mSendLevel);
1355    return t->attachAuxEffect(mAuxEffectId);;
1356}
1357
1358void MediaPlayerService::AudioOutput::start()
1359{
1360    LOGV("start");
1361    if (mTrack) {
1362        mTrack->setVolume(mLeftVolume, mRightVolume);
1363        mTrack->setAuxEffectSendLevel(mSendLevel);
1364        mTrack->start();
1365    }
1366}
1367
1368
1369
1370ssize_t MediaPlayerService::AudioOutput::write(const void* buffer, size_t size)
1371{
1372    LOG_FATAL_IF(mCallback != NULL, "Don't call write if supplying a callback.");
1373
1374    //LOGV("write(%p, %u)", buffer, size);
1375    if (mTrack) {
1376        ssize_t ret = mTrack->write(buffer, size);
1377        return ret;
1378    }
1379    return NO_INIT;
1380}
1381
1382void MediaPlayerService::AudioOutput::stop()
1383{
1384    LOGV("stop");
1385    if (mTrack) mTrack->stop();
1386}
1387
1388void MediaPlayerService::AudioOutput::flush()
1389{
1390    LOGV("flush");
1391    if (mTrack) mTrack->flush();
1392}
1393
1394void MediaPlayerService::AudioOutput::pause()
1395{
1396    LOGV("pause");
1397    if (mTrack) mTrack->pause();
1398}
1399
1400void MediaPlayerService::AudioOutput::close()
1401{
1402    LOGV("close");
1403    delete mTrack;
1404    mTrack = 0;
1405}
1406
1407void MediaPlayerService::AudioOutput::setVolume(float left, float right)
1408{
1409    LOGV("setVolume(%f, %f)", left, right);
1410    mLeftVolume = left;
1411    mRightVolume = right;
1412    if (mTrack) {
1413        mTrack->setVolume(left, right);
1414    }
1415}
1416
1417status_t MediaPlayerService::AudioOutput::setAuxEffectSendLevel(float level)
1418{
1419    LOGV("setAuxEffectSendLevel(%f)", level);
1420    mSendLevel = level;
1421    if (mTrack) {
1422        return mTrack->setAuxEffectSendLevel(level);
1423    }
1424    return NO_ERROR;
1425}
1426
1427status_t MediaPlayerService::AudioOutput::attachAuxEffect(int effectId)
1428{
1429    LOGV("attachAuxEffect(%d)", effectId);
1430    mAuxEffectId = effectId;
1431    if (mTrack) {
1432        return mTrack->attachAuxEffect(effectId);
1433    }
1434    return NO_ERROR;
1435}
1436
1437// static
1438void MediaPlayerService::AudioOutput::CallbackWrapper(
1439        int event, void *cookie, void *info) {
1440    //LOGV("callbackwrapper");
1441    if (event != AudioTrack::EVENT_MORE_DATA) {
1442        return;
1443    }
1444
1445    AudioOutput *me = (AudioOutput *)cookie;
1446    AudioTrack::Buffer *buffer = (AudioTrack::Buffer *)info;
1447
1448    size_t actualSize = (*me->mCallback)(
1449            me, buffer->raw, buffer->size, me->mCallbackCookie);
1450
1451    if (actualSize == 0 && buffer->size > 0) {
1452        // We've reached EOS but the audio track is not stopped yet,
1453        // keep playing silence.
1454
1455        memset(buffer->raw, 0, buffer->size);
1456        actualSize = buffer->size;
1457    }
1458
1459    buffer->size = actualSize;
1460}
1461
1462int MediaPlayerService::AudioOutput::getSessionId()
1463{
1464    return mSessionId;
1465}
1466
1467#undef LOG_TAG
1468#define LOG_TAG "AudioCache"
1469MediaPlayerService::AudioCache::AudioCache(const char* name) :
1470    mChannelCount(0), mFrameCount(1024), mSampleRate(0), mSize(0),
1471    mError(NO_ERROR), mCommandComplete(false)
1472{
1473    // create ashmem heap
1474    mHeap = new MemoryHeapBase(kDefaultHeapSize, 0, name);
1475}
1476
1477uint32_t MediaPlayerService::AudioCache::latency () const
1478{
1479    return 0;
1480}
1481
1482float MediaPlayerService::AudioCache::msecsPerFrame() const
1483{
1484    return mMsecsPerFrame;
1485}
1486
1487status_t MediaPlayerService::AudioCache::getPosition(uint32_t *position)
1488{
1489    if (position == 0) return BAD_VALUE;
1490    *position = mSize;
1491    return NO_ERROR;
1492}
1493
1494////////////////////////////////////////////////////////////////////////////////
1495
1496struct CallbackThread : public Thread {
1497    CallbackThread(const wp<MediaPlayerBase::AudioSink> &sink,
1498                   MediaPlayerBase::AudioSink::AudioCallback cb,
1499                   void *cookie);
1500
1501protected:
1502    virtual ~CallbackThread();
1503
1504    virtual bool threadLoop();
1505
1506private:
1507    wp<MediaPlayerBase::AudioSink> mSink;
1508    MediaPlayerBase::AudioSink::AudioCallback mCallback;
1509    void *mCookie;
1510    void *mBuffer;
1511    size_t mBufferSize;
1512
1513    CallbackThread(const CallbackThread &);
1514    CallbackThread &operator=(const CallbackThread &);
1515};
1516
1517CallbackThread::CallbackThread(
1518        const wp<MediaPlayerBase::AudioSink> &sink,
1519        MediaPlayerBase::AudioSink::AudioCallback cb,
1520        void *cookie)
1521    : mSink(sink),
1522      mCallback(cb),
1523      mCookie(cookie),
1524      mBuffer(NULL),
1525      mBufferSize(0) {
1526}
1527
1528CallbackThread::~CallbackThread() {
1529    if (mBuffer) {
1530        free(mBuffer);
1531        mBuffer = NULL;
1532    }
1533}
1534
1535bool CallbackThread::threadLoop() {
1536    sp<MediaPlayerBase::AudioSink> sink = mSink.promote();
1537    if (sink == NULL) {
1538        return false;
1539    }
1540
1541    if (mBuffer == NULL) {
1542        mBufferSize = sink->bufferSize();
1543        mBuffer = malloc(mBufferSize);
1544    }
1545
1546    size_t actualSize =
1547        (*mCallback)(sink.get(), mBuffer, mBufferSize, mCookie);
1548
1549    if (actualSize > 0) {
1550        sink->write(mBuffer, actualSize);
1551    }
1552
1553    return true;
1554}
1555
1556////////////////////////////////////////////////////////////////////////////////
1557
1558status_t MediaPlayerService::AudioCache::open(
1559        uint32_t sampleRate, int channelCount, int format, int bufferCount,
1560        AudioCallback cb, void *cookie)
1561{
1562    LOGV("open(%u, %d, %d, %d)", sampleRate, channelCount, format, bufferCount);
1563    if (mHeap->getHeapID() < 0) {
1564        return NO_INIT;
1565    }
1566
1567    mSampleRate = sampleRate;
1568    mChannelCount = (uint16_t)channelCount;
1569    mFormat = (uint16_t)format;
1570    mMsecsPerFrame = 1.e3 / (float) sampleRate;
1571
1572    if (cb != NULL) {
1573        mCallbackThread = new CallbackThread(this, cb, cookie);
1574    }
1575    return NO_ERROR;
1576}
1577
1578void MediaPlayerService::AudioCache::start() {
1579    if (mCallbackThread != NULL) {
1580        mCallbackThread->run("AudioCache callback");
1581    }
1582}
1583
1584void MediaPlayerService::AudioCache::stop() {
1585    if (mCallbackThread != NULL) {
1586        mCallbackThread->requestExitAndWait();
1587    }
1588}
1589
1590ssize_t MediaPlayerService::AudioCache::write(const void* buffer, size_t size)
1591{
1592    LOGV("write(%p, %u)", buffer, size);
1593    if ((buffer == 0) || (size == 0)) return size;
1594
1595    uint8_t* p = static_cast<uint8_t*>(mHeap->getBase());
1596    if (p == NULL) return NO_INIT;
1597    p += mSize;
1598    LOGV("memcpy(%p, %p, %u)", p, buffer, size);
1599    if (mSize + size > mHeap->getSize()) {
1600        LOGE("Heap size overflow! req size: %d, max size: %d", (mSize + size), mHeap->getSize());
1601        size = mHeap->getSize() - mSize;
1602    }
1603    memcpy(p, buffer, size);
1604    mSize += size;
1605    return size;
1606}
1607
1608// call with lock held
1609status_t MediaPlayerService::AudioCache::wait()
1610{
1611    Mutex::Autolock lock(mLock);
1612    while (!mCommandComplete) {
1613        mSignal.wait(mLock);
1614    }
1615    mCommandComplete = false;
1616
1617    if (mError == NO_ERROR) {
1618        LOGV("wait - success");
1619    } else {
1620        LOGV("wait - error");
1621    }
1622    return mError;
1623}
1624
1625void MediaPlayerService::AudioCache::notify(
1626        void* cookie, int msg, int ext1, int ext2, const Parcel *obj)
1627{
1628    LOGV("notify(%p, %d, %d, %d)", cookie, msg, ext1, ext2);
1629    AudioCache* p = static_cast<AudioCache*>(cookie);
1630
1631    // ignore buffering messages
1632    switch (msg)
1633    {
1634    case MEDIA_ERROR:
1635        LOGE("Error %d, %d occurred", ext1, ext2);
1636        p->mError = ext1;
1637        break;
1638    case MEDIA_PREPARED:
1639        LOGV("prepared");
1640        break;
1641    case MEDIA_PLAYBACK_COMPLETE:
1642        LOGV("playback complete");
1643        break;
1644    default:
1645        LOGV("ignored");
1646        return;
1647    }
1648
1649    // wake up thread
1650    Mutex::Autolock lock(p->mLock);
1651    p->mCommandComplete = true;
1652    p->mSignal.signal();
1653}
1654
1655int MediaPlayerService::AudioCache::getSessionId()
1656{
1657    return 0;
1658}
1659
1660void MediaPlayerService::addBatteryData(uint32_t params)
1661{
1662    Mutex::Autolock lock(mLock);
1663
1664    int32_t time = systemTime() / 1000000L;
1665
1666    // change audio output devices. This notification comes from AudioFlinger
1667    if ((params & kBatteryDataSpeakerOn)
1668            || (params & kBatteryDataOtherAudioDeviceOn)) {
1669
1670        int deviceOn[NUM_AUDIO_DEVICES];
1671        for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
1672            deviceOn[i] = 0;
1673        }
1674
1675        if ((params & kBatteryDataSpeakerOn)
1676                && (params & kBatteryDataOtherAudioDeviceOn)) {
1677            deviceOn[SPEAKER_AND_OTHER] = 1;
1678        } else if (params & kBatteryDataSpeakerOn) {
1679            deviceOn[SPEAKER] = 1;
1680        } else {
1681            deviceOn[OTHER_AUDIO_DEVICE] = 1;
1682        }
1683
1684        for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
1685            if (mBatteryAudio.deviceOn[i] != deviceOn[i]){
1686
1687                if (mBatteryAudio.refCount > 0) { // if playing audio
1688                    if (!deviceOn[i]) {
1689                        mBatteryAudio.lastTime[i] += time;
1690                        mBatteryAudio.totalTime[i] += mBatteryAudio.lastTime[i];
1691                        mBatteryAudio.lastTime[i] = 0;
1692                    } else {
1693                        mBatteryAudio.lastTime[i] = 0 - time;
1694                    }
1695                }
1696
1697                mBatteryAudio.deviceOn[i] = deviceOn[i];
1698            }
1699        }
1700        return;
1701    }
1702
1703    // an sudio stream is started
1704    if (params & kBatteryDataAudioFlingerStart) {
1705        // record the start time only if currently no other audio
1706        // is being played
1707        if (mBatteryAudio.refCount == 0) {
1708            for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
1709                if (mBatteryAudio.deviceOn[i]) {
1710                    mBatteryAudio.lastTime[i] -= time;
1711                }
1712            }
1713        }
1714
1715        mBatteryAudio.refCount ++;
1716        return;
1717
1718    } else if (params & kBatteryDataAudioFlingerStop) {
1719        if (mBatteryAudio.refCount <= 0) {
1720            LOGW("Battery track warning: refCount is <= 0");
1721            return;
1722        }
1723
1724        // record the stop time only if currently this is the only
1725        // audio being played
1726        if (mBatteryAudio.refCount == 1) {
1727            for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
1728                if (mBatteryAudio.deviceOn[i]) {
1729                    mBatteryAudio.lastTime[i] += time;
1730                    mBatteryAudio.totalTime[i] += mBatteryAudio.lastTime[i];
1731                    mBatteryAudio.lastTime[i] = 0;
1732                }
1733            }
1734        }
1735
1736        mBatteryAudio.refCount --;
1737        return;
1738    }
1739
1740    int uid = IPCThreadState::self()->getCallingUid();
1741    if (uid == AID_MEDIA) {
1742        return;
1743    }
1744    int index = mBatteryData.indexOfKey(uid);
1745
1746    if (index < 0) { // create a new entry for this UID
1747        BatteryUsageInfo info;
1748        info.audioTotalTime = 0;
1749        info.videoTotalTime = 0;
1750        info.audioLastTime = 0;
1751        info.videoLastTime = 0;
1752        info.refCount = 0;
1753
1754        if (mBatteryData.add(uid, info) == NO_MEMORY) {
1755            LOGE("Battery track error: no memory for new app");
1756            return;
1757        }
1758    }
1759
1760    BatteryUsageInfo &info = mBatteryData.editValueFor(uid);
1761
1762    if (params & kBatteryDataCodecStarted) {
1763        if (params & kBatteryDataTrackAudio) {
1764            info.audioLastTime -= time;
1765            info.refCount ++;
1766        }
1767        if (params & kBatteryDataTrackVideo) {
1768            info.videoLastTime -= time;
1769            info.refCount ++;
1770        }
1771    } else {
1772        if (info.refCount == 0) {
1773            LOGW("Battery track warning: refCount is already 0");
1774            return;
1775        } else if (info.refCount < 0) {
1776            LOGE("Battery track error: refCount < 0");
1777            mBatteryData.removeItem(uid);
1778            return;
1779        }
1780
1781        if (params & kBatteryDataTrackAudio) {
1782            info.audioLastTime += time;
1783            info.refCount --;
1784        }
1785        if (params & kBatteryDataTrackVideo) {
1786            info.videoLastTime += time;
1787            info.refCount --;
1788        }
1789
1790        // no stream is being played by this UID
1791        if (info.refCount == 0) {
1792            info.audioTotalTime += info.audioLastTime;
1793            info.audioLastTime = 0;
1794            info.videoTotalTime += info.videoLastTime;
1795            info.videoLastTime = 0;
1796        }
1797    }
1798}
1799
1800status_t MediaPlayerService::pullBatteryData(Parcel* reply) {
1801    Mutex::Autolock lock(mLock);
1802
1803    // audio output devices usage
1804    int32_t time = systemTime() / 1000000L; //in ms
1805    int32_t totalTime;
1806
1807    for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
1808        totalTime = mBatteryAudio.totalTime[i];
1809
1810        if (mBatteryAudio.deviceOn[i]
1811            && (mBatteryAudio.lastTime[i] != 0)) {
1812                int32_t tmpTime = mBatteryAudio.lastTime[i] + time;
1813                totalTime += tmpTime;
1814        }
1815
1816        reply->writeInt32(totalTime);
1817        // reset the total time
1818        mBatteryAudio.totalTime[i] = 0;
1819   }
1820
1821    // codec usage
1822    BatteryUsageInfo info;
1823    int size = mBatteryData.size();
1824
1825    reply->writeInt32(size);
1826    int i = 0;
1827
1828    while (i < size) {
1829        info = mBatteryData.valueAt(i);
1830
1831        reply->writeInt32(mBatteryData.keyAt(i)); //UID
1832        reply->writeInt32(info.audioTotalTime);
1833        reply->writeInt32(info.videoTotalTime);
1834
1835        info.audioTotalTime = 0;
1836        info.videoTotalTime = 0;
1837
1838        // remove the UID entry where no stream is being played
1839        if (info.refCount <= 0) {
1840            mBatteryData.removeItemsAt(i);
1841            size --;
1842            i --;
1843        }
1844        i++;
1845    }
1846    return NO_ERROR;
1847}
1848} // namespace android
1849