MediaPlayerService.cpp revision 2bfdd428c56c7524d1a11979f200a1762866032d 
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    if (!strncasecmp("rtsp://", url, 7)) {
588        return NU_PLAYER;
589    }
590
591    // use MidiFile for MIDI extensions
592    int lenURL = strlen(url);
593    for (int i = 0; i < NELEM(FILE_EXTS); ++i) {
594        int len = strlen(FILE_EXTS[i].extension);
595        int start = lenURL - len;
596        if (start > 0) {
597            if (!strncasecmp(url + start, FILE_EXTS[i].extension, len)) {
598                return FILE_EXTS[i].playertype;
599            }
600        }
601    }
602
603    return getDefaultPlayerType();
604}
605
606static sp<MediaPlayerBase> createPlayer(player_type playerType, void* cookie,
607        notify_callback_f notifyFunc)
608{
609    sp<MediaPlayerBase> p;
610    switch (playerType) {
611        case SONIVOX_PLAYER:
612            LOGV(" create MidiFile");
613            p = new MidiFile();
614            break;
615        case STAGEFRIGHT_PLAYER:
616            LOGV(" create StagefrightPlayer");
617            p = new StagefrightPlayer;
618            break;
619        case NU_PLAYER:
620            LOGV(" create NuPlayer");
621            p = new NuPlayerDriver;
622            break;
623        case TEST_PLAYER:
624            LOGV("Create Test Player stub");
625            p = new TestPlayerStub();
626            break;
627        default:
628            LOGE("Unknown player type: %d", playerType);
629            return NULL;
630    }
631    if (p != NULL) {
632        if (p->initCheck() == NO_ERROR) {
633            p->setNotifyCallback(cookie, notifyFunc);
634        } else {
635            p.clear();
636        }
637    }
638    if (p == NULL) {
639        LOGE("Failed to create player object");
640    }
641    return p;
642}
643
644sp<MediaPlayerBase> MediaPlayerService::Client::createPlayer(player_type playerType)
645{
646    // determine if we have the right player type
647    sp<MediaPlayerBase> p = mPlayer;
648    if ((p != NULL) && (p->playerType() != playerType)) {
649        LOGV("delete player");
650        p.clear();
651    }
652    if (p == NULL) {
653        p = android::createPlayer(playerType, this, notify);
654    }
655
656    if (p != NULL) {
657        p->setUID(mUID);
658    }
659
660    return p;
661}
662
663status_t MediaPlayerService::Client::setDataSource(
664        const char *url, const KeyedVector<String8, String8> *headers)
665{
666    LOGV("setDataSource(%s)", url);
667    if (url == NULL)
668        return UNKNOWN_ERROR;
669
670    if ((strncmp(url, "http://", 7) == 0) ||
671        (strncmp(url, "https://", 8) == 0) ||
672        (strncmp(url, "rtsp://", 7) == 0)) {
673        if (!checkPermission("android.permission.INTERNET")) {
674            return PERMISSION_DENIED;
675        }
676    }
677
678    if (strncmp(url, "content://", 10) == 0) {
679        // get a filedescriptor for the content Uri and
680        // pass it to the setDataSource(fd) method
681
682        String16 url16(url);
683        int fd = android::openContentProviderFile(url16);
684        if (fd < 0)
685        {
686            LOGE("Couldn't open fd for %s", url);
687            return UNKNOWN_ERROR;
688        }
689        setDataSource(fd, 0, 0x7fffffffffLL); // this sets mStatus
690        close(fd);
691        return mStatus;
692    } else {
693        player_type playerType = getPlayerType(url);
694        LOGV("player type = %d", playerType);
695
696        // create the right type of player
697        sp<MediaPlayerBase> p = createPlayer(playerType);
698        if (p == NULL) return NO_INIT;
699
700        if (!p->hardwareOutput()) {
701            mAudioOutput = new AudioOutput(mAudioSessionId);
702            static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput);
703        }
704
705        // now set data source
706        LOGV(" setDataSource");
707        mStatus = p->setDataSource(url, headers);
708        if (mStatus == NO_ERROR) {
709            mPlayer = p;
710        } else {
711            LOGE("  error: %d", mStatus);
712        }
713        return mStatus;
714    }
715}
716
717status_t MediaPlayerService::Client::setDataSource(int fd, int64_t offset, int64_t length)
718{
719    LOGV("setDataSource fd=%d, offset=%lld, length=%lld", fd, offset, length);
720    struct stat sb;
721    int ret = fstat(fd, &sb);
722    if (ret != 0) {
723        LOGE("fstat(%d) failed: %d, %s", fd, ret, strerror(errno));
724        return UNKNOWN_ERROR;
725    }
726
727    LOGV("st_dev  = %llu", sb.st_dev);
728    LOGV("st_mode = %u", sb.st_mode);
729    LOGV("st_uid  = %lu", sb.st_uid);
730    LOGV("st_gid  = %lu", sb.st_gid);
731    LOGV("st_size = %llu", sb.st_size);
732
733    if (offset >= sb.st_size) {
734        LOGE("offset error");
735        ::close(fd);
736        return UNKNOWN_ERROR;
737    }
738    if (offset + length > sb.st_size) {
739        length = sb.st_size - offset;
740        LOGV("calculated length = %lld", length);
741    }
742
743    player_type playerType = getPlayerType(fd, offset, length);
744    LOGV("player type = %d", playerType);
745
746    // create the right type of player
747    sp<MediaPlayerBase> p = createPlayer(playerType);
748    if (p == NULL) return NO_INIT;
749
750    if (!p->hardwareOutput()) {
751        mAudioOutput = new AudioOutput(mAudioSessionId);
752        static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput);
753    }
754
755    // now set data source
756    mStatus = p->setDataSource(fd, offset, length);
757    if (mStatus == NO_ERROR) mPlayer = p;
758
759    return mStatus;
760}
761
762status_t MediaPlayerService::Client::setDataSource(
763        const sp<IStreamSource> &source) {
764    // create the right type of player
765    sp<MediaPlayerBase> p = createPlayer(NU_PLAYER);
766
767    if (p == NULL) {
768        return NO_INIT;
769    }
770
771    if (!p->hardwareOutput()) {
772        mAudioOutput = new AudioOutput(mAudioSessionId);
773        static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput);
774    }
775
776    // now set data source
777    mStatus = p->setDataSource(source);
778
779    if (mStatus == OK) {
780        mPlayer = p;
781    }
782
783    return mStatus;
784}
785
786status_t MediaPlayerService::Client::setVideoSurface(const sp<Surface>& surface)
787{
788    LOGV("[%d] setVideoSurface(%p)", mConnId, surface.get());
789    sp<MediaPlayerBase> p = getPlayer();
790    if (p == 0) return UNKNOWN_ERROR;
791    return p->setVideoSurface(surface);
792}
793
794status_t MediaPlayerService::Client::setVideoSurfaceTexture(
795        const sp<ISurfaceTexture>& surfaceTexture)
796{
797    LOGV("[%d] setVideoSurfaceTexture(%p)", mConnId, surfaceTexture.get());
798    sp<MediaPlayerBase> p = getPlayer();
799    if (p == 0) return UNKNOWN_ERROR;
800    return p->setVideoSurfaceTexture(surfaceTexture);
801}
802
803status_t MediaPlayerService::Client::invoke(const Parcel& request,
804                                            Parcel *reply)
805{
806    sp<MediaPlayerBase> p = getPlayer();
807    if (p == NULL) return UNKNOWN_ERROR;
808    return p->invoke(request, reply);
809}
810
811// This call doesn't need to access the native player.
812status_t MediaPlayerService::Client::setMetadataFilter(const Parcel& filter)
813{
814    status_t status;
815    media::Metadata::Filter allow, drop;
816
817    if (unmarshallFilter(filter, &allow, &status) &&
818        unmarshallFilter(filter, &drop, &status)) {
819        Mutex::Autolock lock(mLock);
820
821        mMetadataAllow = allow;
822        mMetadataDrop = drop;
823    }
824    return status;
825}
826
827status_t MediaPlayerService::Client::getMetadata(
828        bool update_only, bool apply_filter, Parcel *reply)
829{
830    sp<MediaPlayerBase> player = getPlayer();
831    if (player == 0) return UNKNOWN_ERROR;
832
833    status_t status;
834    // Placeholder for the return code, updated by the caller.
835    reply->writeInt32(-1);
836
837    media::Metadata::Filter ids;
838
839    // We don't block notifications while we fetch the data. We clear
840    // mMetadataUpdated first so we don't lose notifications happening
841    // during the rest of this call.
842    {
843        Mutex::Autolock lock(mLock);
844        if (update_only) {
845            ids = mMetadataUpdated;
846        }
847        mMetadataUpdated.clear();
848    }
849
850    media::Metadata metadata(reply);
851
852    metadata.appendHeader();
853    status = player->getMetadata(ids, reply);
854
855    if (status != OK) {
856        metadata.resetParcel();
857        LOGE("getMetadata failed %d", status);
858        return status;
859    }
860
861    // FIXME: Implement filtering on the result. Not critical since
862    // filtering takes place on the update notifications already. This
863    // would be when all the metadata are fetch and a filter is set.
864
865    // Everything is fine, update the metadata length.
866    metadata.updateLength();
867    return OK;
868}
869
870status_t MediaPlayerService::Client::prepareAsync()
871{
872    LOGV("[%d] prepareAsync", mConnId);
873    sp<MediaPlayerBase> p = getPlayer();
874    if (p == 0) return UNKNOWN_ERROR;
875    status_t ret = p->prepareAsync();
876#if CALLBACK_ANTAGONIZER
877    LOGD("start Antagonizer");
878    if (ret == NO_ERROR) mAntagonizer->start();
879#endif
880    return ret;
881}
882
883status_t MediaPlayerService::Client::start()
884{
885    LOGV("[%d] start", mConnId);
886    sp<MediaPlayerBase> p = getPlayer();
887    if (p == 0) return UNKNOWN_ERROR;
888    p->setLooping(mLoop);
889    return p->start();
890}
891
892status_t MediaPlayerService::Client::stop()
893{
894    LOGV("[%d] stop", mConnId);
895    sp<MediaPlayerBase> p = getPlayer();
896    if (p == 0) return UNKNOWN_ERROR;
897    return p->stop();
898}
899
900status_t MediaPlayerService::Client::pause()
901{
902    LOGV("[%d] pause", mConnId);
903    sp<MediaPlayerBase> p = getPlayer();
904    if (p == 0) return UNKNOWN_ERROR;
905    return p->pause();
906}
907
908status_t MediaPlayerService::Client::isPlaying(bool* state)
909{
910    *state = false;
911    sp<MediaPlayerBase> p = getPlayer();
912    if (p == 0) return UNKNOWN_ERROR;
913    *state = p->isPlaying();
914    LOGV("[%d] isPlaying: %d", mConnId, *state);
915    return NO_ERROR;
916}
917
918status_t MediaPlayerService::Client::getCurrentPosition(int *msec)
919{
920    LOGV("getCurrentPosition");
921    sp<MediaPlayerBase> p = getPlayer();
922    if (p == 0) return UNKNOWN_ERROR;
923    status_t ret = p->getCurrentPosition(msec);
924    if (ret == NO_ERROR) {
925        LOGV("[%d] getCurrentPosition = %d", mConnId, *msec);
926    } else {
927        LOGE("getCurrentPosition returned %d", ret);
928    }
929    return ret;
930}
931
932status_t MediaPlayerService::Client::getDuration(int *msec)
933{
934    LOGV("getDuration");
935    sp<MediaPlayerBase> p = getPlayer();
936    if (p == 0) return UNKNOWN_ERROR;
937    status_t ret = p->getDuration(msec);
938    if (ret == NO_ERROR) {
939        LOGV("[%d] getDuration = %d", mConnId, *msec);
940    } else {
941        LOGE("getDuration returned %d", ret);
942    }
943    return ret;
944}
945
946status_t MediaPlayerService::Client::seekTo(int msec)
947{
948    LOGV("[%d] seekTo(%d)", mConnId, msec);
949    sp<MediaPlayerBase> p = getPlayer();
950    if (p == 0) return UNKNOWN_ERROR;
951    return p->seekTo(msec);
952}
953
954status_t MediaPlayerService::Client::reset()
955{
956    LOGV("[%d] reset", mConnId);
957    sp<MediaPlayerBase> p = getPlayer();
958    if (p == 0) return UNKNOWN_ERROR;
959    return p->reset();
960}
961
962status_t MediaPlayerService::Client::setAudioStreamType(int type)
963{
964    LOGV("[%d] setAudioStreamType(%d)", mConnId, type);
965    // TODO: for hardware output, call player instead
966    Mutex::Autolock l(mLock);
967    if (mAudioOutput != 0) mAudioOutput->setAudioStreamType(type);
968    return NO_ERROR;
969}
970
971status_t MediaPlayerService::Client::setLooping(int loop)
972{
973    LOGV("[%d] setLooping(%d)", mConnId, loop);
974    mLoop = loop;
975    sp<MediaPlayerBase> p = getPlayer();
976    if (p != 0) return p->setLooping(loop);
977    return NO_ERROR;
978}
979
980status_t MediaPlayerService::Client::setVolume(float leftVolume, float rightVolume)
981{
982    LOGV("[%d] setVolume(%f, %f)", mConnId, leftVolume, rightVolume);
983    // TODO: for hardware output, call player instead
984    Mutex::Autolock l(mLock);
985    if (mAudioOutput != 0) mAudioOutput->setVolume(leftVolume, rightVolume);
986    return NO_ERROR;
987}
988
989status_t MediaPlayerService::Client::setAuxEffectSendLevel(float level)
990{
991    LOGV("[%d] setAuxEffectSendLevel(%f)", mConnId, level);
992    Mutex::Autolock l(mLock);
993    if (mAudioOutput != 0) return mAudioOutput->setAuxEffectSendLevel(level);
994    return NO_ERROR;
995}
996
997status_t MediaPlayerService::Client::attachAuxEffect(int effectId)
998{
999    LOGV("[%d] attachAuxEffect(%d)", mConnId, effectId);
1000    Mutex::Autolock l(mLock);
1001    if (mAudioOutput != 0) return mAudioOutput->attachAuxEffect(effectId);
1002    return NO_ERROR;
1003}
1004
1005status_t MediaPlayerService::Client::setParameter(int key, const Parcel &request) {
1006    LOGV("[%d] setParameter(%d)", mConnId, key);
1007    sp<MediaPlayerBase> p = getPlayer();
1008    if (p == 0) return UNKNOWN_ERROR;
1009    return p->setParameter(key, request);
1010}
1011
1012status_t MediaPlayerService::Client::getParameter(int key, Parcel *reply) {
1013    LOGV("[%d] getParameter(%d)", mConnId, key);
1014    sp<MediaPlayerBase> p = getPlayer();
1015    if (p == 0) return UNKNOWN_ERROR;
1016    return p->getParameter(key, reply);
1017}
1018
1019void MediaPlayerService::Client::notify(
1020        void* cookie, int msg, int ext1, int ext2, const Parcel *obj)
1021{
1022    Client* client = static_cast<Client*>(cookie);
1023
1024    if (MEDIA_INFO == msg &&
1025        MEDIA_INFO_METADATA_UPDATE == ext1) {
1026        const media::Metadata::Type metadata_type = ext2;
1027
1028        if(client->shouldDropMetadata(metadata_type)) {
1029            return;
1030        }
1031
1032        // Update the list of metadata that have changed. getMetadata
1033        // also access mMetadataUpdated and clears it.
1034        client->addNewMetadataUpdate(metadata_type);
1035    }
1036    LOGV("[%d] notify (%p, %d, %d, %d)", client->mConnId, cookie, msg, ext1, ext2);
1037    client->mClient->notify(msg, ext1, ext2, obj);
1038}
1039
1040
1041bool MediaPlayerService::Client::shouldDropMetadata(media::Metadata::Type code) const
1042{
1043    Mutex::Autolock lock(mLock);
1044
1045    if (findMetadata(mMetadataDrop, code)) {
1046        return true;
1047    }
1048
1049    if (mMetadataAllow.isEmpty() || findMetadata(mMetadataAllow, code)) {
1050        return false;
1051    } else {
1052        return true;
1053    }
1054}
1055
1056
1057void MediaPlayerService::Client::addNewMetadataUpdate(media::Metadata::Type metadata_type) {
1058    Mutex::Autolock lock(mLock);
1059    if (mMetadataUpdated.indexOf(metadata_type) < 0) {
1060        mMetadataUpdated.add(metadata_type);
1061    }
1062}
1063
1064#if CALLBACK_ANTAGONIZER
1065const int Antagonizer::interval = 10000; // 10 msecs
1066
1067Antagonizer::Antagonizer(notify_callback_f cb, void* client) :
1068    mExit(false), mActive(false), mClient(client), mCb(cb)
1069{
1070    createThread(callbackThread, this);
1071}
1072
1073void Antagonizer::kill()
1074{
1075    Mutex::Autolock _l(mLock);
1076    mActive = false;
1077    mExit = true;
1078    mCondition.wait(mLock);
1079}
1080
1081int Antagonizer::callbackThread(void* user)
1082{
1083    LOGD("Antagonizer started");
1084    Antagonizer* p = reinterpret_cast<Antagonizer*>(user);
1085    while (!p->mExit) {
1086        if (p->mActive) {
1087            LOGV("send event");
1088            p->mCb(p->mClient, 0, 0, 0);
1089        }
1090        usleep(interval);
1091    }
1092    Mutex::Autolock _l(p->mLock);
1093    p->mCondition.signal();
1094    LOGD("Antagonizer stopped");
1095    return 0;
1096}
1097#endif
1098
1099static size_t kDefaultHeapSize = 1024 * 1024; // 1MB
1100
1101sp<IMemory> MediaPlayerService::decode(const char* url, uint32_t *pSampleRate, int* pNumChannels, int* pFormat)
1102{
1103    LOGV("decode(%s)", url);
1104    sp<MemoryBase> mem;
1105    sp<MediaPlayerBase> player;
1106
1107    // Protect our precious, precious DRMd ringtones by only allowing
1108    // decoding of http, but not filesystem paths or content Uris.
1109    // If the application wants to decode those, it should open a
1110    // filedescriptor for them and use that.
1111    if (url != NULL && strncmp(url, "http://", 7) != 0) {
1112        LOGD("Can't decode %s by path, use filedescriptor instead", url);
1113        return mem;
1114    }
1115
1116    player_type playerType = getPlayerType(url);
1117    LOGV("player type = %d", playerType);
1118
1119    // create the right type of player
1120    sp<AudioCache> cache = new AudioCache(url);
1121    player = android::createPlayer(playerType, cache.get(), cache->notify);
1122    if (player == NULL) goto Exit;
1123    if (player->hardwareOutput()) goto Exit;
1124
1125    static_cast<MediaPlayerInterface*>(player.get())->setAudioSink(cache);
1126
1127    // set data source
1128    if (player->setDataSource(url) != NO_ERROR) goto Exit;
1129
1130    LOGV("prepare");
1131    player->prepareAsync();
1132
1133    LOGV("wait for prepare");
1134    if (cache->wait() != NO_ERROR) goto Exit;
1135
1136    LOGV("start");
1137    player->start();
1138
1139    LOGV("wait for playback complete");
1140    cache->wait();
1141    // in case of error, return what was successfully decoded.
1142    if (cache->size() == 0) {
1143        goto Exit;
1144    }
1145
1146    mem = new MemoryBase(cache->getHeap(), 0, cache->size());
1147    *pSampleRate = cache->sampleRate();
1148    *pNumChannels = cache->channelCount();
1149    *pFormat = (int)cache->format();
1150    LOGV("return memory @ %p, sampleRate=%u, channelCount = %d, format = %d", mem->pointer(), *pSampleRate, *pNumChannels, *pFormat);
1151
1152Exit:
1153    if (player != 0) player->reset();
1154    return mem;
1155}
1156
1157sp<IMemory> MediaPlayerService::decode(int fd, int64_t offset, int64_t length, uint32_t *pSampleRate, int* pNumChannels, int* pFormat)
1158{
1159    LOGV("decode(%d, %lld, %lld)", fd, offset, length);
1160    sp<MemoryBase> mem;
1161    sp<MediaPlayerBase> player;
1162
1163    player_type playerType = getPlayerType(fd, offset, length);
1164    LOGV("player type = %d", playerType);
1165
1166    // create the right type of player
1167    sp<AudioCache> cache = new AudioCache("decode_fd");
1168    player = android::createPlayer(playerType, cache.get(), cache->notify);
1169    if (player == NULL) goto Exit;
1170    if (player->hardwareOutput()) goto Exit;
1171
1172    static_cast<MediaPlayerInterface*>(player.get())->setAudioSink(cache);
1173
1174    // set data source
1175    if (player->setDataSource(fd, offset, length) != NO_ERROR) goto Exit;
1176
1177    LOGV("prepare");
1178    player->prepareAsync();
1179
1180    LOGV("wait for prepare");
1181    if (cache->wait() != NO_ERROR) goto Exit;
1182
1183    LOGV("start");
1184    player->start();
1185
1186    LOGV("wait for playback complete");
1187    cache->wait();
1188    // in case of error, return what was successfully decoded.
1189    if (cache->size() == 0) {
1190        goto Exit;
1191    }
1192
1193    mem = new MemoryBase(cache->getHeap(), 0, cache->size());
1194    *pSampleRate = cache->sampleRate();
1195    *pNumChannels = cache->channelCount();
1196    *pFormat = cache->format();
1197    LOGV("return memory @ %p, sampleRate=%u, channelCount = %d, format = %d", mem->pointer(), *pSampleRate, *pNumChannels, *pFormat);
1198
1199Exit:
1200    if (player != 0) player->reset();
1201    ::close(fd);
1202    return mem;
1203}
1204
1205
1206#undef LOG_TAG
1207#define LOG_TAG "AudioSink"
1208MediaPlayerService::AudioOutput::AudioOutput(int sessionId)
1209    : mCallback(NULL),
1210      mCallbackCookie(NULL),
1211      mSessionId(sessionId) {
1212    LOGV("AudioOutput(%d)", sessionId);
1213    mTrack = 0;
1214    mStreamType = AUDIO_STREAM_MUSIC;
1215    mLeftVolume = 1.0;
1216    mRightVolume = 1.0;
1217    mLatency = 0;
1218    mMsecsPerFrame = 0;
1219    mAuxEffectId = 0;
1220    mSendLevel = 0.0;
1221    setMinBufferCount();
1222}
1223
1224MediaPlayerService::AudioOutput::~AudioOutput()
1225{
1226    close();
1227}
1228
1229void MediaPlayerService::AudioOutput::setMinBufferCount()
1230{
1231    char value[PROPERTY_VALUE_MAX];
1232    if (property_get("ro.kernel.qemu", value, 0)) {
1233        mIsOnEmulator = true;
1234        mMinBufferCount = 12;  // to prevent systematic buffer underrun for emulator
1235    }
1236}
1237
1238bool MediaPlayerService::AudioOutput::isOnEmulator()
1239{
1240    setMinBufferCount();
1241    return mIsOnEmulator;
1242}
1243
1244int MediaPlayerService::AudioOutput::getMinBufferCount()
1245{
1246    setMinBufferCount();
1247    return mMinBufferCount;
1248}
1249
1250ssize_t MediaPlayerService::AudioOutput::bufferSize() const
1251{
1252    if (mTrack == 0) return NO_INIT;
1253    return mTrack->frameCount() * frameSize();
1254}
1255
1256ssize_t MediaPlayerService::AudioOutput::frameCount() const
1257{
1258    if (mTrack == 0) return NO_INIT;
1259    return mTrack->frameCount();
1260}
1261
1262ssize_t MediaPlayerService::AudioOutput::channelCount() const
1263{
1264    if (mTrack == 0) return NO_INIT;
1265    return mTrack->channelCount();
1266}
1267
1268ssize_t MediaPlayerService::AudioOutput::frameSize() const
1269{
1270    if (mTrack == 0) return NO_INIT;
1271    return mTrack->frameSize();
1272}
1273
1274uint32_t MediaPlayerService::AudioOutput::latency () const
1275{
1276    return mLatency;
1277}
1278
1279float MediaPlayerService::AudioOutput::msecsPerFrame() const
1280{
1281    return mMsecsPerFrame;
1282}
1283
1284status_t MediaPlayerService::AudioOutput::getPosition(uint32_t *position)
1285{
1286    if (mTrack == 0) return NO_INIT;
1287    return mTrack->getPosition(position);
1288}
1289
1290status_t MediaPlayerService::AudioOutput::open(
1291        uint32_t sampleRate, int channelCount, int format, int bufferCount,
1292        AudioCallback cb, void *cookie)
1293{
1294    mCallback = cb;
1295    mCallbackCookie = cookie;
1296
1297    // Check argument "bufferCount" against the mininum buffer count
1298    if (bufferCount < mMinBufferCount) {
1299        LOGD("bufferCount (%d) is too small and increased to %d", bufferCount, mMinBufferCount);
1300        bufferCount = mMinBufferCount;
1301
1302    }
1303    LOGV("open(%u, %d, %d, %d, %d)", sampleRate, channelCount, format, bufferCount,mSessionId);
1304    if (mTrack) close();
1305    int afSampleRate;
1306    int afFrameCount;
1307    int frameCount;
1308
1309    if (AudioSystem::getOutputFrameCount(&afFrameCount, mStreamType) != NO_ERROR) {
1310        return NO_INIT;
1311    }
1312    if (AudioSystem::getOutputSamplingRate(&afSampleRate, mStreamType) != NO_ERROR) {
1313        return NO_INIT;
1314    }
1315
1316    frameCount = (sampleRate*afFrameCount*bufferCount)/afSampleRate;
1317
1318    AudioTrack *t;
1319    if (mCallback != NULL) {
1320        t = new AudioTrack(
1321                mStreamType,
1322                sampleRate,
1323                format,
1324                (channelCount == 2) ? AUDIO_CHANNEL_OUT_STEREO : AUDIO_CHANNEL_OUT_MONO,
1325                frameCount,
1326                0 /* flags */,
1327                CallbackWrapper,
1328                this,
1329                0,
1330                mSessionId);
1331    } else {
1332        t = new AudioTrack(
1333                mStreamType,
1334                sampleRate,
1335                format,
1336                (channelCount == 2) ? AUDIO_CHANNEL_OUT_STEREO : AUDIO_CHANNEL_OUT_MONO,
1337                frameCount,
1338                0,
1339                NULL,
1340                NULL,
1341                0,
1342                mSessionId);
1343    }
1344
1345    if ((t == 0) || (t->initCheck() != NO_ERROR)) {
1346        LOGE("Unable to create audio track");
1347        delete t;
1348        return NO_INIT;
1349    }
1350
1351    LOGV("setVolume");
1352    t->setVolume(mLeftVolume, mRightVolume);
1353
1354    mMsecsPerFrame = 1.e3 / (float) sampleRate;
1355    mLatency = t->latency();
1356    mTrack = t;
1357
1358    t->setAuxEffectSendLevel(mSendLevel);
1359    return t->attachAuxEffect(mAuxEffectId);;
1360}
1361
1362void MediaPlayerService::AudioOutput::start()
1363{
1364    LOGV("start");
1365    if (mTrack) {
1366        mTrack->setVolume(mLeftVolume, mRightVolume);
1367        mTrack->setAuxEffectSendLevel(mSendLevel);
1368        mTrack->start();
1369    }
1370}
1371
1372
1373
1374ssize_t MediaPlayerService::AudioOutput::write(const void* buffer, size_t size)
1375{
1376    LOG_FATAL_IF(mCallback != NULL, "Don't call write if supplying a callback.");
1377
1378    //LOGV("write(%p, %u)", buffer, size);
1379    if (mTrack) {
1380        ssize_t ret = mTrack->write(buffer, size);
1381        return ret;
1382    }
1383    return NO_INIT;
1384}
1385
1386void MediaPlayerService::AudioOutput::stop()
1387{
1388    LOGV("stop");
1389    if (mTrack) mTrack->stop();
1390}
1391
1392void MediaPlayerService::AudioOutput::flush()
1393{
1394    LOGV("flush");
1395    if (mTrack) mTrack->flush();
1396}
1397
1398void MediaPlayerService::AudioOutput::pause()
1399{
1400    LOGV("pause");
1401    if (mTrack) mTrack->pause();
1402}
1403
1404void MediaPlayerService::AudioOutput::close()
1405{
1406    LOGV("close");
1407    delete mTrack;
1408    mTrack = 0;
1409}
1410
1411void MediaPlayerService::AudioOutput::setVolume(float left, float right)
1412{
1413    LOGV("setVolume(%f, %f)", left, right);
1414    mLeftVolume = left;
1415    mRightVolume = right;
1416    if (mTrack) {
1417        mTrack->setVolume(left, right);
1418    }
1419}
1420
1421status_t MediaPlayerService::AudioOutput::setAuxEffectSendLevel(float level)
1422{
1423    LOGV("setAuxEffectSendLevel(%f)", level);
1424    mSendLevel = level;
1425    if (mTrack) {
1426        return mTrack->setAuxEffectSendLevel(level);
1427    }
1428    return NO_ERROR;
1429}
1430
1431status_t MediaPlayerService::AudioOutput::attachAuxEffect(int effectId)
1432{
1433    LOGV("attachAuxEffect(%d)", effectId);
1434    mAuxEffectId = effectId;
1435    if (mTrack) {
1436        return mTrack->attachAuxEffect(effectId);
1437    }
1438    return NO_ERROR;
1439}
1440
1441// static
1442void MediaPlayerService::AudioOutput::CallbackWrapper(
1443        int event, void *cookie, void *info) {
1444    //LOGV("callbackwrapper");
1445    if (event != AudioTrack::EVENT_MORE_DATA) {
1446        return;
1447    }
1448
1449    AudioOutput *me = (AudioOutput *)cookie;
1450    AudioTrack::Buffer *buffer = (AudioTrack::Buffer *)info;
1451
1452    size_t actualSize = (*me->mCallback)(
1453            me, buffer->raw, buffer->size, me->mCallbackCookie);
1454
1455    if (actualSize == 0 && buffer->size > 0) {
1456        // We've reached EOS but the audio track is not stopped yet,
1457        // keep playing silence.
1458
1459        memset(buffer->raw, 0, buffer->size);
1460        actualSize = buffer->size;
1461    }
1462
1463    buffer->size = actualSize;
1464}
1465
1466int MediaPlayerService::AudioOutput::getSessionId()
1467{
1468    return mSessionId;
1469}
1470
1471#undef LOG_TAG
1472#define LOG_TAG "AudioCache"
1473MediaPlayerService::AudioCache::AudioCache(const char* name) :
1474    mChannelCount(0), mFrameCount(1024), mSampleRate(0), mSize(0),
1475    mError(NO_ERROR), mCommandComplete(false)
1476{
1477    // create ashmem heap
1478    mHeap = new MemoryHeapBase(kDefaultHeapSize, 0, name);
1479}
1480
1481uint32_t MediaPlayerService::AudioCache::latency () const
1482{
1483    return 0;
1484}
1485
1486float MediaPlayerService::AudioCache::msecsPerFrame() const
1487{
1488    return mMsecsPerFrame;
1489}
1490
1491status_t MediaPlayerService::AudioCache::getPosition(uint32_t *position)
1492{
1493    if (position == 0) return BAD_VALUE;
1494    *position = mSize;
1495    return NO_ERROR;
1496}
1497
1498////////////////////////////////////////////////////////////////////////////////
1499
1500struct CallbackThread : public Thread {
1501    CallbackThread(const wp<MediaPlayerBase::AudioSink> &sink,
1502                   MediaPlayerBase::AudioSink::AudioCallback cb,
1503                   void *cookie);
1504
1505protected:
1506    virtual ~CallbackThread();
1507
1508    virtual bool threadLoop();
1509
1510private:
1511    wp<MediaPlayerBase::AudioSink> mSink;
1512    MediaPlayerBase::AudioSink::AudioCallback mCallback;
1513    void *mCookie;
1514    void *mBuffer;
1515    size_t mBufferSize;
1516
1517    CallbackThread(const CallbackThread &);
1518    CallbackThread &operator=(const CallbackThread &);
1519};
1520
1521CallbackThread::CallbackThread(
1522        const wp<MediaPlayerBase::AudioSink> &sink,
1523        MediaPlayerBase::AudioSink::AudioCallback cb,
1524        void *cookie)
1525    : mSink(sink),
1526      mCallback(cb),
1527      mCookie(cookie),
1528      mBuffer(NULL),
1529      mBufferSize(0) {
1530}
1531
1532CallbackThread::~CallbackThread() {
1533    if (mBuffer) {
1534        free(mBuffer);
1535        mBuffer = NULL;
1536    }
1537}
1538
1539bool CallbackThread::threadLoop() {
1540    sp<MediaPlayerBase::AudioSink> sink = mSink.promote();
1541    if (sink == NULL) {
1542        return false;
1543    }
1544
1545    if (mBuffer == NULL) {
1546        mBufferSize = sink->bufferSize();
1547        mBuffer = malloc(mBufferSize);
1548    }
1549
1550    size_t actualSize =
1551        (*mCallback)(sink.get(), mBuffer, mBufferSize, mCookie);
1552
1553    if (actualSize > 0) {
1554        sink->write(mBuffer, actualSize);
1555    }
1556
1557    return true;
1558}
1559
1560////////////////////////////////////////////////////////////////////////////////
1561
1562status_t MediaPlayerService::AudioCache::open(
1563        uint32_t sampleRate, int channelCount, int format, int bufferCount,
1564        AudioCallback cb, void *cookie)
1565{
1566    LOGV("open(%u, %d, %d, %d)", sampleRate, channelCount, format, bufferCount);
1567    if (mHeap->getHeapID() < 0) {
1568        return NO_INIT;
1569    }
1570
1571    mSampleRate = sampleRate;
1572    mChannelCount = (uint16_t)channelCount;
1573    mFormat = (uint16_t)format;
1574    mMsecsPerFrame = 1.e3 / (float) sampleRate;
1575
1576    if (cb != NULL) {
1577        mCallbackThread = new CallbackThread(this, cb, cookie);
1578    }
1579    return NO_ERROR;
1580}
1581
1582void MediaPlayerService::AudioCache::start() {
1583    if (mCallbackThread != NULL) {
1584        mCallbackThread->run("AudioCache callback");
1585    }
1586}
1587
1588void MediaPlayerService::AudioCache::stop() {
1589    if (mCallbackThread != NULL) {
1590        mCallbackThread->requestExitAndWait();
1591    }
1592}
1593
1594ssize_t MediaPlayerService::AudioCache::write(const void* buffer, size_t size)
1595{
1596    LOGV("write(%p, %u)", buffer, size);
1597    if ((buffer == 0) || (size == 0)) return size;
1598
1599    uint8_t* p = static_cast<uint8_t*>(mHeap->getBase());
1600    if (p == NULL) return NO_INIT;
1601    p += mSize;
1602    LOGV("memcpy(%p, %p, %u)", p, buffer, size);
1603    if (mSize + size > mHeap->getSize()) {
1604        LOGE("Heap size overflow! req size: %d, max size: %d", (mSize + size), mHeap->getSize());
1605        size = mHeap->getSize() - mSize;
1606    }
1607    memcpy(p, buffer, size);
1608    mSize += size;
1609    return size;
1610}
1611
1612// call with lock held
1613status_t MediaPlayerService::AudioCache::wait()
1614{
1615    Mutex::Autolock lock(mLock);
1616    while (!mCommandComplete) {
1617        mSignal.wait(mLock);
1618    }
1619    mCommandComplete = false;
1620
1621    if (mError == NO_ERROR) {
1622        LOGV("wait - success");
1623    } else {
1624        LOGV("wait - error");
1625    }
1626    return mError;
1627}
1628
1629void MediaPlayerService::AudioCache::notify(
1630        void* cookie, int msg, int ext1, int ext2, const Parcel *obj)
1631{
1632    LOGV("notify(%p, %d, %d, %d)", cookie, msg, ext1, ext2);
1633    AudioCache* p = static_cast<AudioCache*>(cookie);
1634
1635    // ignore buffering messages
1636    switch (msg)
1637    {
1638    case MEDIA_ERROR:
1639        LOGE("Error %d, %d occurred", ext1, ext2);
1640        p->mError = ext1;
1641        break;
1642    case MEDIA_PREPARED:
1643        LOGV("prepared");
1644        break;
1645    case MEDIA_PLAYBACK_COMPLETE:
1646        LOGV("playback complete");
1647        break;
1648    default:
1649        LOGV("ignored");
1650        return;
1651    }
1652
1653    // wake up thread
1654    Mutex::Autolock lock(p->mLock);
1655    p->mCommandComplete = true;
1656    p->mSignal.signal();
1657}
1658
1659int MediaPlayerService::AudioCache::getSessionId()
1660{
1661    return 0;
1662}
1663
1664void MediaPlayerService::addBatteryData(uint32_t params)
1665{
1666    Mutex::Autolock lock(mLock);
1667
1668    int32_t time = systemTime() / 1000000L;
1669
1670    // change audio output devices. This notification comes from AudioFlinger
1671    if ((params & kBatteryDataSpeakerOn)
1672            || (params & kBatteryDataOtherAudioDeviceOn)) {
1673
1674        int deviceOn[NUM_AUDIO_DEVICES];
1675        for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
1676            deviceOn[i] = 0;
1677        }
1678
1679        if ((params & kBatteryDataSpeakerOn)
1680                && (params & kBatteryDataOtherAudioDeviceOn)) {
1681            deviceOn[SPEAKER_AND_OTHER] = 1;
1682        } else if (params & kBatteryDataSpeakerOn) {
1683            deviceOn[SPEAKER] = 1;
1684        } else {
1685            deviceOn[OTHER_AUDIO_DEVICE] = 1;
1686        }
1687
1688        for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
1689            if (mBatteryAudio.deviceOn[i] != deviceOn[i]){
1690
1691                if (mBatteryAudio.refCount > 0) { // if playing audio
1692                    if (!deviceOn[i]) {
1693                        mBatteryAudio.lastTime[i] += time;
1694                        mBatteryAudio.totalTime[i] += mBatteryAudio.lastTime[i];
1695                        mBatteryAudio.lastTime[i] = 0;
1696                    } else {
1697                        mBatteryAudio.lastTime[i] = 0 - time;
1698                    }
1699                }
1700
1701                mBatteryAudio.deviceOn[i] = deviceOn[i];
1702            }
1703        }
1704        return;
1705    }
1706
1707    // an sudio stream is started
1708    if (params & kBatteryDataAudioFlingerStart) {
1709        // record the start time only if currently no other audio
1710        // is being played
1711        if (mBatteryAudio.refCount == 0) {
1712            for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
1713                if (mBatteryAudio.deviceOn[i]) {
1714                    mBatteryAudio.lastTime[i] -= time;
1715                }
1716            }
1717        }
1718
1719        mBatteryAudio.refCount ++;
1720        return;
1721
1722    } else if (params & kBatteryDataAudioFlingerStop) {
1723        if (mBatteryAudio.refCount <= 0) {
1724            LOGW("Battery track warning: refCount is <= 0");
1725            return;
1726        }
1727
1728        // record the stop time only if currently this is the only
1729        // audio being played
1730        if (mBatteryAudio.refCount == 1) {
1731            for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
1732                if (mBatteryAudio.deviceOn[i]) {
1733                    mBatteryAudio.lastTime[i] += time;
1734                    mBatteryAudio.totalTime[i] += mBatteryAudio.lastTime[i];
1735                    mBatteryAudio.lastTime[i] = 0;
1736                }
1737            }
1738        }
1739
1740        mBatteryAudio.refCount --;
1741        return;
1742    }
1743
1744    int uid = IPCThreadState::self()->getCallingUid();
1745    if (uid == AID_MEDIA) {
1746        return;
1747    }
1748    int index = mBatteryData.indexOfKey(uid);
1749
1750    if (index < 0) { // create a new entry for this UID
1751        BatteryUsageInfo info;
1752        info.audioTotalTime = 0;
1753        info.videoTotalTime = 0;
1754        info.audioLastTime = 0;
1755        info.videoLastTime = 0;
1756        info.refCount = 0;
1757
1758        if (mBatteryData.add(uid, info) == NO_MEMORY) {
1759            LOGE("Battery track error: no memory for new app");
1760            return;
1761        }
1762    }
1763
1764    BatteryUsageInfo &info = mBatteryData.editValueFor(uid);
1765
1766    if (params & kBatteryDataCodecStarted) {
1767        if (params & kBatteryDataTrackAudio) {
1768            info.audioLastTime -= time;
1769            info.refCount ++;
1770        }
1771        if (params & kBatteryDataTrackVideo) {
1772            info.videoLastTime -= time;
1773            info.refCount ++;
1774        }
1775    } else {
1776        if (info.refCount == 0) {
1777            LOGW("Battery track warning: refCount is already 0");
1778            return;
1779        } else if (info.refCount < 0) {
1780            LOGE("Battery track error: refCount < 0");
1781            mBatteryData.removeItem(uid);
1782            return;
1783        }
1784
1785        if (params & kBatteryDataTrackAudio) {
1786            info.audioLastTime += time;
1787            info.refCount --;
1788        }
1789        if (params & kBatteryDataTrackVideo) {
1790            info.videoLastTime += time;
1791            info.refCount --;
1792        }
1793
1794        // no stream is being played by this UID
1795        if (info.refCount == 0) {
1796            info.audioTotalTime += info.audioLastTime;
1797            info.audioLastTime = 0;
1798            info.videoTotalTime += info.videoLastTime;
1799            info.videoLastTime = 0;
1800        }
1801    }
1802}
1803
1804status_t MediaPlayerService::pullBatteryData(Parcel* reply) {
1805    Mutex::Autolock lock(mLock);
1806
1807    // audio output devices usage
1808    int32_t time = systemTime() / 1000000L; //in ms
1809    int32_t totalTime;
1810
1811    for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
1812        totalTime = mBatteryAudio.totalTime[i];
1813
1814        if (mBatteryAudio.deviceOn[i]
1815            && (mBatteryAudio.lastTime[i] != 0)) {
1816                int32_t tmpTime = mBatteryAudio.lastTime[i] + time;
1817                totalTime += tmpTime;
1818        }
1819
1820        reply->writeInt32(totalTime);
1821        // reset the total time
1822        mBatteryAudio.totalTime[i] = 0;
1823   }
1824
1825    // codec usage
1826    BatteryUsageInfo info;
1827    int size = mBatteryData.size();
1828
1829    reply->writeInt32(size);
1830    int i = 0;
1831
1832    while (i < size) {
1833        info = mBatteryData.valueAt(i);
1834
1835        reply->writeInt32(mBatteryData.keyAt(i)); //UID
1836        reply->writeInt32(info.audioTotalTime);
1837        reply->writeInt32(info.videoTotalTime);
1838
1839        info.audioTotalTime = 0;
1840        info.videoTotalTime = 0;
1841
1842        // remove the UID entry where no stream is being played
1843        if (info.refCount <= 0) {
1844            mBatteryData.removeItemsAt(i);
1845            size --;
1846            i --;
1847        }
1848        i++;
1849    }
1850    return NO_ERROR;
1851}
1852} // namespace android
1853