MediaPlayerService.cpp revision 7cf180c9bff69e5cc4a2f4e53b432db45ebbebab 
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
55#include <private/android_filesystem_config.h>
56
57#include "MediaRecorderClient.h"
58#include "MediaPlayerService.h"
59#include "MetadataRetrieverClient.h"
60
61#include "MidiFile.h"
62#include "TestPlayerStub.h"
63#include "StagefrightPlayer.h"
64#include "nuplayer/NuPlayerDriver.h"
65
66#include <OMX.h>
67
68/* desktop Linux needs a little help with gettid() */
69#if defined(HAVE_GETTID) && !defined(HAVE_ANDROID_OS)
70#define __KERNEL__
71# include <linux/unistd.h>
72#ifdef _syscall0
73_syscall0(pid_t,gettid)
74#else
75pid_t gettid() { return syscall(__NR_gettid);}
76#endif
77#undef __KERNEL__
78#endif
79
80namespace {
81using android::media::Metadata;
82using android::status_t;
83using android::OK;
84using android::BAD_VALUE;
85using android::NOT_ENOUGH_DATA;
86using android::Parcel;
87
88// Max number of entries in the filter.
89const int kMaxFilterSize = 64;  // I pulled that out of thin air.
90
91// FIXME: Move all the metadata related function in the Metadata.cpp
92
93
94// Unmarshall a filter from a Parcel.
95// Filter format in a parcel:
96//
97//  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
98// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
99// |                       number of entries (n)                   |
100// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
101// |                       metadata type 1                         |
102// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
103// |                       metadata type 2                         |
104// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
105//  ....
106// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
107// |                       metadata type n                         |
108// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
109//
110// @param p Parcel that should start with a filter.
111// @param[out] filter On exit contains the list of metadata type to be
112//                    filtered.
113// @param[out] status On exit contains the status code to be returned.
114// @return true if the parcel starts with a valid filter.
115bool unmarshallFilter(const Parcel& p,
116                      Metadata::Filter *filter,
117                      status_t *status)
118{
119    int32_t val;
120    if (p.readInt32(&val) != OK)
121    {
122        LOGE("Failed to read filter's length");
123        *status = NOT_ENOUGH_DATA;
124        return false;
125    }
126
127    if( val > kMaxFilterSize || val < 0)
128    {
129        LOGE("Invalid filter len %d", val);
130        *status = BAD_VALUE;
131        return false;
132    }
133
134    const size_t num = val;
135
136    filter->clear();
137    filter->setCapacity(num);
138
139    size_t size = num * sizeof(Metadata::Type);
140
141
142    if (p.dataAvail() < size)
143    {
144        LOGE("Filter too short expected %d but got %d", size, p.dataAvail());
145        *status = NOT_ENOUGH_DATA;
146        return false;
147    }
148
149    const Metadata::Type *data =
150            static_cast<const Metadata::Type*>(p.readInplace(size));
151
152    if (NULL == data)
153    {
154        LOGE("Filter had no data");
155        *status = BAD_VALUE;
156        return false;
157    }
158
159    // TODO: The stl impl of vector would be more efficient here
160    // because it degenerates into a memcpy on pod types. Try to
161    // replace later or use stl::set.
162    for (size_t i = 0; i < num; ++i)
163    {
164        filter->add(*data);
165        ++data;
166    }
167    *status = OK;
168    return true;
169}
170
171// @param filter Of metadata type.
172// @param val To be searched.
173// @return true if a match was found.
174bool findMetadata(const Metadata::Filter& filter, const int32_t val)
175{
176    // Deal with empty and ANY right away
177    if (filter.isEmpty()) return false;
178    if (filter[0] == Metadata::kAny) return true;
179
180    return filter.indexOf(val) >= 0;
181}
182
183}  // anonymous namespace
184
185
186namespace android {
187
188// TODO: Temp hack until we can register players
189typedef struct {
190    const char *extension;
191    const player_type playertype;
192} extmap;
193extmap FILE_EXTS [] =  {
194        {".mid", SONIVOX_PLAYER},
195        {".midi", SONIVOX_PLAYER},
196        {".smf", SONIVOX_PLAYER},
197        {".xmf", SONIVOX_PLAYER},
198        {".imy", SONIVOX_PLAYER},
199        {".rtttl", SONIVOX_PLAYER},
200        {".rtx", SONIVOX_PLAYER},
201        {".ota", SONIVOX_PLAYER},
202};
203
204// TODO: Find real cause of Audio/Video delay in PV framework and remove this workaround
205/* static */ int MediaPlayerService::AudioOutput::mMinBufferCount = 4;
206/* static */ bool MediaPlayerService::AudioOutput::mIsOnEmulator = false;
207
208void MediaPlayerService::instantiate() {
209    defaultServiceManager()->addService(
210            String16("media.player"), new MediaPlayerService());
211}
212
213MediaPlayerService::MediaPlayerService()
214{
215    LOGV("MediaPlayerService created");
216    mNextConnId = 1;
217}
218
219MediaPlayerService::~MediaPlayerService()
220{
221    LOGV("MediaPlayerService destroyed");
222}
223
224sp<IMediaRecorder> MediaPlayerService::createMediaRecorder(pid_t pid)
225{
226    sp<MediaRecorderClient> recorder = new MediaRecorderClient(this, pid);
227    wp<MediaRecorderClient> w = recorder;
228    Mutex::Autolock lock(mLock);
229    mMediaRecorderClients.add(w);
230    LOGV("Create new media recorder client from pid %d", pid);
231    return recorder;
232}
233
234void MediaPlayerService::removeMediaRecorderClient(wp<MediaRecorderClient> client)
235{
236    Mutex::Autolock lock(mLock);
237    mMediaRecorderClients.remove(client);
238    LOGV("Delete media recorder client");
239}
240
241sp<IMediaMetadataRetriever> MediaPlayerService::createMetadataRetriever(pid_t pid)
242{
243    sp<MetadataRetrieverClient> retriever = new MetadataRetrieverClient(pid);
244    LOGV("Create new media retriever from pid %d", pid);
245    return retriever;
246}
247
248sp<IMediaPlayer> MediaPlayerService::create(
249        pid_t pid, const sp<IMediaPlayerClient>& client, const char* url,
250        const KeyedVector<String8, String8> *headers, int audioSessionId)
251{
252    int32_t connId = android_atomic_inc(&mNextConnId);
253    sp<Client> c = new Client(this, pid, connId, client, audioSessionId);
254    LOGV("Create new client(%d) from pid %d, url=%s, connId=%d, audioSessionId=%d",
255            connId, pid, url, connId, audioSessionId);
256    if (NO_ERROR != c->setDataSource(url, headers))
257    {
258        c.clear();
259        return c;
260    }
261    wp<Client> w = c;
262    Mutex::Autolock lock(mLock);
263    mClients.add(w);
264    return c;
265}
266
267sp<IMediaPlayer> MediaPlayerService::create(pid_t pid, const sp<IMediaPlayerClient>& client,
268        int fd, int64_t offset, int64_t length, int audioSessionId)
269{
270    int32_t connId = android_atomic_inc(&mNextConnId);
271    sp<Client> c = new Client(this, pid, connId, client, audioSessionId);
272    LOGV("Create new client(%d) from pid %d, fd=%d, offset=%lld, length=%lld, audioSessionId=%d",
273            connId, pid, fd, offset, length, audioSessionId);
274    if (NO_ERROR != c->setDataSource(fd, offset, length)) {
275        c.clear();
276    } else {
277        wp<Client> w = c;
278        Mutex::Autolock lock(mLock);
279        mClients.add(w);
280    }
281    ::close(fd);
282    return c;
283}
284
285sp<IMediaPlayer> MediaPlayerService::create(
286        pid_t pid, const sp<IMediaPlayerClient> &client,
287        const sp<IStreamSource> &source, int audioSessionId) {
288    int32_t connId = android_atomic_inc(&mNextConnId);
289    sp<Client> c = new Client(this, pid, connId, client, audioSessionId);
290
291    LOGV("Create new client(%d) from pid %d, audioSessionId=%d",
292         connId, pid, audioSessionId);
293
294    if (OK != c->setDataSource(source)) {
295        c.clear();
296    } else {
297        wp<Client> w = c;
298        Mutex::Autolock lock(mLock);
299        mClients.add(w);
300    }
301
302    return c;
303}
304
305sp<IOMX> MediaPlayerService::getOMX() {
306    Mutex::Autolock autoLock(mLock);
307
308    if (mOMX.get() == NULL) {
309        mOMX = new OMX;
310    }
311
312    return mOMX;
313}
314
315status_t MediaPlayerService::AudioCache::dump(int fd, const Vector<String16>& args) const
316{
317    const size_t SIZE = 256;
318    char buffer[SIZE];
319    String8 result;
320
321    result.append(" AudioCache\n");
322    if (mHeap != 0) {
323        snprintf(buffer, 255, "  heap base(%p), size(%d), flags(%d), device(%s)\n",
324                mHeap->getBase(), mHeap->getSize(), mHeap->getFlags(), mHeap->getDevice());
325        result.append(buffer);
326    }
327    snprintf(buffer, 255, "  msec per frame(%f), channel count(%d), format(%d), frame count(%ld)\n",
328            mMsecsPerFrame, mChannelCount, mFormat, mFrameCount);
329    result.append(buffer);
330    snprintf(buffer, 255, "  sample rate(%d), size(%d), error(%d), command complete(%s)\n",
331            mSampleRate, mSize, mError, mCommandComplete?"true":"false");
332    result.append(buffer);
333    ::write(fd, result.string(), result.size());
334    return NO_ERROR;
335}
336
337status_t MediaPlayerService::AudioOutput::dump(int fd, const Vector<String16>& args) const
338{
339    const size_t SIZE = 256;
340    char buffer[SIZE];
341    String8 result;
342
343    result.append(" AudioOutput\n");
344    snprintf(buffer, 255, "  stream type(%d), left - right volume(%f, %f)\n",
345            mStreamType, mLeftVolume, mRightVolume);
346    result.append(buffer);
347    snprintf(buffer, 255, "  msec per frame(%f), latency (%d)\n",
348            mMsecsPerFrame, mLatency);
349    result.append(buffer);
350    snprintf(buffer, 255, "  aux effect id(%d), send level (%f)\n",
351            mAuxEffectId, mSendLevel);
352    result.append(buffer);
353
354    ::write(fd, result.string(), result.size());
355    if (mTrack != 0) {
356        mTrack->dump(fd, args);
357    }
358    return NO_ERROR;
359}
360
361status_t MediaPlayerService::Client::dump(int fd, const Vector<String16>& args) const
362{
363    const size_t SIZE = 256;
364    char buffer[SIZE];
365    String8 result;
366    result.append(" Client\n");
367    snprintf(buffer, 255, "  pid(%d), connId(%d), status(%d), looping(%s)\n",
368            mPid, mConnId, mStatus, mLoop?"true": "false");
369    result.append(buffer);
370    write(fd, result.string(), result.size());
371    if (mAudioOutput != 0) {
372        mAudioOutput->dump(fd, args);
373    }
374    write(fd, "\n", 1);
375    return NO_ERROR;
376}
377
378static int myTid() {
379#ifdef HAVE_GETTID
380    return gettid();
381#else
382    return getpid();
383#endif
384}
385
386#if defined(__arm__)
387extern "C" void get_malloc_leak_info(uint8_t** info, size_t* overallSize,
388        size_t* infoSize, size_t* totalMemory, size_t* backtraceSize);
389extern "C" void free_malloc_leak_info(uint8_t* info);
390
391// Use the String-class below instead of String8 to allocate all memory
392// beforehand and not reenter the heap while we are examining it...
393struct MyString8 {
394    static const size_t MAX_SIZE = 256 * 1024;
395
396    MyString8()
397        : mPtr((char *)malloc(MAX_SIZE)) {
398        *mPtr = '\0';
399    }
400
401    ~MyString8() {
402        free(mPtr);
403    }
404
405    void append(const char *s) {
406        strcat(mPtr, s);
407    }
408
409    const char *string() const {
410        return mPtr;
411    }
412
413    size_t size() const {
414        return strlen(mPtr);
415    }
416
417private:
418    char *mPtr;
419
420    MyString8(const MyString8 &);
421    MyString8 &operator=(const MyString8 &);
422};
423
424void memStatus(int fd, const Vector<String16>& args)
425{
426    const size_t SIZE = 256;
427    char buffer[SIZE];
428    MyString8 result;
429
430    typedef struct {
431        size_t size;
432        size_t dups;
433        intptr_t * backtrace;
434    } AllocEntry;
435
436    uint8_t *info = NULL;
437    size_t overallSize = 0;
438    size_t infoSize = 0;
439    size_t totalMemory = 0;
440    size_t backtraceSize = 0;
441
442    get_malloc_leak_info(&info, &overallSize, &infoSize, &totalMemory, &backtraceSize);
443    if (info) {
444        uint8_t *ptr = info;
445        size_t count = overallSize / infoSize;
446
447        snprintf(buffer, SIZE, " Allocation count %i\n", count);
448        result.append(buffer);
449        snprintf(buffer, SIZE, " Total memory %i\n", totalMemory);
450        result.append(buffer);
451
452        AllocEntry * entries = new AllocEntry[count];
453
454        for (size_t i = 0; i < count; i++) {
455            // Each entry should be size_t, size_t, intptr_t[backtraceSize]
456            AllocEntry *e = &entries[i];
457
458            e->size = *reinterpret_cast<size_t *>(ptr);
459            ptr += sizeof(size_t);
460
461            e->dups = *reinterpret_cast<size_t *>(ptr);
462            ptr += sizeof(size_t);
463
464            e->backtrace = reinterpret_cast<intptr_t *>(ptr);
465            ptr += sizeof(intptr_t) * backtraceSize;
466        }
467
468        // Now we need to sort the entries.  They come sorted by size but
469        // not by stack trace which causes problems using diff.
470        bool moved;
471        do {
472            moved = false;
473            for (size_t i = 0; i < (count - 1); i++) {
474                AllocEntry *e1 = &entries[i];
475                AllocEntry *e2 = &entries[i+1];
476
477                bool swap = e1->size < e2->size;
478                if (e1->size == e2->size) {
479                    for(size_t j = 0; j < backtraceSize; j++) {
480                        if (e1->backtrace[j] == e2->backtrace[j]) {
481                            continue;
482                        }
483                        swap = e1->backtrace[j] < e2->backtrace[j];
484                        break;
485                    }
486                }
487                if (swap) {
488                    AllocEntry t = entries[i];
489                    entries[i] = entries[i+1];
490                    entries[i+1] = t;
491                    moved = true;
492                }
493            }
494        } while (moved);
495
496        for (size_t i = 0; i < count; i++) {
497            AllocEntry *e = &entries[i];
498
499            snprintf(buffer, SIZE, "size %8i, dup %4i, ", e->size, e->dups);
500            result.append(buffer);
501            for (size_t ct = 0; (ct < backtraceSize) && e->backtrace[ct]; ct++) {
502                if (ct) {
503                    result.append(", ");
504                }
505                snprintf(buffer, SIZE, "0x%08x", e->backtrace[ct]);
506                result.append(buffer);
507            }
508            result.append("\n");
509        }
510
511        delete[] entries;
512        free_malloc_leak_info(info);
513    }
514
515    write(fd, result.string(), result.size());
516}
517#endif
518
519status_t MediaPlayerService::dump(int fd, const Vector<String16>& args)
520{
521    const size_t SIZE = 256;
522    char buffer[SIZE];
523    String8 result;
524    if (checkCallingPermission(String16("android.permission.DUMP")) == false) {
525        snprintf(buffer, SIZE, "Permission Denial: "
526                "can't dump MediaPlayerService from pid=%d, uid=%d\n",
527                IPCThreadState::self()->getCallingPid(),
528                IPCThreadState::self()->getCallingUid());
529        result.append(buffer);
530    } else {
531        Mutex::Autolock lock(mLock);
532        for (int i = 0, n = mClients.size(); i < n; ++i) {
533            sp<Client> c = mClients[i].promote();
534            if (c != 0) c->dump(fd, args);
535        }
536        if (mMediaRecorderClients.size() == 0) {
537                result.append(" No media recorder client\n\n");
538        } else {
539            for (int i = 0, n = mMediaRecorderClients.size(); i < n; ++i) {
540                sp<MediaRecorderClient> c = mMediaRecorderClients[i].promote();
541                snprintf(buffer, 255, " MediaRecorderClient pid(%d)\n", c->mPid);
542                result.append(buffer);
543                write(fd, result.string(), result.size());
544                result = "\n";
545                c->dump(fd, args);
546            }
547        }
548
549        result.append(" Files opened and/or mapped:\n");
550        snprintf(buffer, SIZE, "/proc/%d/maps", myTid());
551        FILE *f = fopen(buffer, "r");
552        if (f) {
553            while (!feof(f)) {
554                fgets(buffer, SIZE, f);
555                if (strstr(buffer, " /mnt/sdcard/") ||
556                    strstr(buffer, " /system/sounds/") ||
557                    strstr(buffer, " /data/") ||
558                    strstr(buffer, " /system/media/")) {
559                    result.append("  ");
560                    result.append(buffer);
561                }
562            }
563            fclose(f);
564        } else {
565            result.append("couldn't open ");
566            result.append(buffer);
567            result.append("\n");
568        }
569
570        snprintf(buffer, SIZE, "/proc/%d/fd", myTid());
571        DIR *d = opendir(buffer);
572        if (d) {
573            struct dirent *ent;
574            while((ent = readdir(d)) != NULL) {
575                if (strcmp(ent->d_name,".") && strcmp(ent->d_name,"..")) {
576                    snprintf(buffer, SIZE, "/proc/%d/fd/%s", myTid(), ent->d_name);
577                    struct stat s;
578                    if (lstat(buffer, &s) == 0) {
579                        if ((s.st_mode & S_IFMT) == S_IFLNK) {
580                            char linkto[256];
581                            int len = readlink(buffer, linkto, sizeof(linkto));
582                            if(len > 0) {
583                                if(len > 255) {
584                                    linkto[252] = '.';
585                                    linkto[253] = '.';
586                                    linkto[254] = '.';
587                                    linkto[255] = 0;
588                                } else {
589                                    linkto[len] = 0;
590                                }
591                                if (strstr(linkto, "/mnt/sdcard/") == linkto ||
592                                    strstr(linkto, "/system/sounds/") == linkto ||
593                                    strstr(linkto, "/data/") == linkto ||
594                                    strstr(linkto, "/system/media/") == linkto) {
595                                    result.append("  ");
596                                    result.append(buffer);
597                                    result.append(" -> ");
598                                    result.append(linkto);
599                                    result.append("\n");
600                                }
601                            }
602                        } else {
603                            result.append("  unexpected type for ");
604                            result.append(buffer);
605                            result.append("\n");
606                        }
607                    }
608                }
609            }
610            closedir(d);
611        } else {
612            result.append("couldn't open ");
613            result.append(buffer);
614            result.append("\n");
615        }
616
617#if defined(__arm__)
618        bool dumpMem = false;
619        for (size_t i = 0; i < args.size(); i++) {
620            if (args[i] == String16("-m")) {
621                dumpMem = true;
622            }
623        }
624        if (dumpMem) {
625            memStatus(fd, args);
626        }
627#endif
628    }
629    write(fd, result.string(), result.size());
630    return NO_ERROR;
631}
632
633void MediaPlayerService::removeClient(wp<Client> client)
634{
635    Mutex::Autolock lock(mLock);
636    mClients.remove(client);
637}
638
639MediaPlayerService::Client::Client(const sp<MediaPlayerService>& service, pid_t pid,
640        int32_t connId, const sp<IMediaPlayerClient>& client, int audioSessionId)
641{
642    LOGV("Client(%d) constructor", connId);
643    mPid = pid;
644    mConnId = connId;
645    mService = service;
646    mClient = client;
647    mLoop = false;
648    mStatus = NO_INIT;
649    mAudioSessionId = audioSessionId;
650
651#if CALLBACK_ANTAGONIZER
652    LOGD("create Antagonizer");
653    mAntagonizer = new Antagonizer(notify, this);
654#endif
655}
656
657MediaPlayerService::Client::~Client()
658{
659    LOGV("Client(%d) destructor pid = %d", mConnId, mPid);
660    mAudioOutput.clear();
661    wp<Client> client(this);
662    disconnect();
663    mService->removeClient(client);
664}
665
666void MediaPlayerService::Client::disconnect()
667{
668    LOGV("disconnect(%d) from pid %d", mConnId, mPid);
669    // grab local reference and clear main reference to prevent future
670    // access to object
671    sp<MediaPlayerBase> p;
672    {
673        Mutex::Autolock l(mLock);
674        p = mPlayer;
675    }
676    mClient.clear();
677
678    mPlayer.clear();
679
680    // clear the notification to prevent callbacks to dead client
681    // and reset the player. We assume the player will serialize
682    // access to itself if necessary.
683    if (p != 0) {
684        p->setNotifyCallback(0, 0);
685#if CALLBACK_ANTAGONIZER
686        LOGD("kill Antagonizer");
687        mAntagonizer->kill();
688#endif
689        p->reset();
690    }
691
692    IPCThreadState::self()->flushCommands();
693}
694
695static player_type getDefaultPlayerType() {
696    return STAGEFRIGHT_PLAYER;
697}
698
699player_type getPlayerType(int fd, int64_t offset, int64_t length)
700{
701    char buf[20];
702    lseek(fd, offset, SEEK_SET);
703    read(fd, buf, sizeof(buf));
704    lseek(fd, offset, SEEK_SET);
705
706    long ident = *((long*)buf);
707
708    // Ogg vorbis?
709    if (ident == 0x5367674f) // 'OggS'
710        return STAGEFRIGHT_PLAYER;
711
712    // Some kind of MIDI?
713    EAS_DATA_HANDLE easdata;
714    if (EAS_Init(&easdata) == EAS_SUCCESS) {
715        EAS_FILE locator;
716        locator.path = NULL;
717        locator.fd = fd;
718        locator.offset = offset;
719        locator.length = length;
720        EAS_HANDLE  eashandle;
721        if (EAS_OpenFile(easdata, &locator, &eashandle) == EAS_SUCCESS) {
722            EAS_CloseFile(easdata, eashandle);
723            EAS_Shutdown(easdata);
724            return SONIVOX_PLAYER;
725        }
726        EAS_Shutdown(easdata);
727    }
728
729    return getDefaultPlayerType();
730}
731
732player_type getPlayerType(const char* url)
733{
734    if (TestPlayerStub::canBeUsed(url)) {
735        return TEST_PLAYER;
736    }
737
738    if (!strncasecmp("http://", url, 7)) {
739        size_t len = strlen(url);
740        if (len >= 5 && !strcasecmp(".m3u8", &url[len - 5])) {
741            return NU_PLAYER;
742        }
743
744        if (strstr(url,"m3u8")) {
745            return NU_PLAYER;
746        }
747    }
748
749    // use MidiFile for MIDI extensions
750    int lenURL = strlen(url);
751    for (int i = 0; i < NELEM(FILE_EXTS); ++i) {
752        int len = strlen(FILE_EXTS[i].extension);
753        int start = lenURL - len;
754        if (start > 0) {
755            if (!strncasecmp(url + start, FILE_EXTS[i].extension, len)) {
756                return FILE_EXTS[i].playertype;
757            }
758        }
759    }
760
761    return getDefaultPlayerType();
762}
763
764static sp<MediaPlayerBase> createPlayer(player_type playerType, void* cookie,
765        notify_callback_f notifyFunc)
766{
767    sp<MediaPlayerBase> p;
768    switch (playerType) {
769        case SONIVOX_PLAYER:
770            LOGV(" create MidiFile");
771            p = new MidiFile();
772            break;
773        case STAGEFRIGHT_PLAYER:
774            LOGV(" create StagefrightPlayer");
775            p = new StagefrightPlayer;
776            break;
777        case NU_PLAYER:
778            LOGV(" create NuPlayer");
779            p = new NuPlayerDriver;
780            break;
781        case TEST_PLAYER:
782            LOGV("Create Test Player stub");
783            p = new TestPlayerStub();
784            break;
785        default:
786            LOGE("Unknown player type: %d", playerType);
787            return NULL;
788    }
789    if (p != NULL) {
790        if (p->initCheck() == NO_ERROR) {
791            p->setNotifyCallback(cookie, notifyFunc);
792        } else {
793            p.clear();
794        }
795    }
796    if (p == NULL) {
797        LOGE("Failed to create player object");
798    }
799    return p;
800}
801
802sp<MediaPlayerBase> MediaPlayerService::Client::createPlayer(player_type playerType)
803{
804    // determine if we have the right player type
805    sp<MediaPlayerBase> p = mPlayer;
806    if ((p != NULL) && (p->playerType() != playerType)) {
807        LOGV("delete player");
808        p.clear();
809    }
810    if (p == NULL) {
811        p = android::createPlayer(playerType, this, notify);
812    }
813    return p;
814}
815
816status_t MediaPlayerService::Client::setDataSource(
817        const char *url, const KeyedVector<String8, String8> *headers)
818{
819    LOGV("setDataSource(%s)", url);
820    if (url == NULL)
821        return UNKNOWN_ERROR;
822
823    if (strncmp(url, "content://", 10) == 0) {
824        // get a filedescriptor for the content Uri and
825        // pass it to the setDataSource(fd) method
826
827        String16 url16(url);
828        int fd = android::openContentProviderFile(url16);
829        if (fd < 0)
830        {
831            LOGE("Couldn't open fd for %s", url);
832            return UNKNOWN_ERROR;
833        }
834        setDataSource(fd, 0, 0x7fffffffffLL); // this sets mStatus
835        close(fd);
836        return mStatus;
837    } else {
838        player_type playerType = getPlayerType(url);
839        LOGV("player type = %d", playerType);
840
841        // create the right type of player
842        sp<MediaPlayerBase> p = createPlayer(playerType);
843        if (p == NULL) return NO_INIT;
844
845        if (!p->hardwareOutput()) {
846            mAudioOutput = new AudioOutput(mAudioSessionId);
847            static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput);
848        }
849
850        // now set data source
851        LOGV(" setDataSource");
852        mStatus = p->setDataSource(url, headers);
853        if (mStatus == NO_ERROR) {
854            mPlayer = p;
855        } else {
856            LOGE("  error: %d", mStatus);
857        }
858        return mStatus;
859    }
860}
861
862status_t MediaPlayerService::Client::setDataSource(int fd, int64_t offset, int64_t length)
863{
864    LOGV("setDataSource fd=%d, offset=%lld, length=%lld", fd, offset, length);
865    struct stat sb;
866    int ret = fstat(fd, &sb);
867    if (ret != 0) {
868        LOGE("fstat(%d) failed: %d, %s", fd, ret, strerror(errno));
869        return UNKNOWN_ERROR;
870    }
871
872    LOGV("st_dev  = %llu", sb.st_dev);
873    LOGV("st_mode = %u", sb.st_mode);
874    LOGV("st_uid  = %lu", sb.st_uid);
875    LOGV("st_gid  = %lu", sb.st_gid);
876    LOGV("st_size = %llu", sb.st_size);
877
878    if (offset >= sb.st_size) {
879        LOGE("offset error");
880        ::close(fd);
881        return UNKNOWN_ERROR;
882    }
883    if (offset + length > sb.st_size) {
884        length = sb.st_size - offset;
885        LOGV("calculated length = %lld", length);
886    }
887
888    player_type playerType = getPlayerType(fd, offset, length);
889    LOGV("player type = %d", playerType);
890
891    // create the right type of player
892    sp<MediaPlayerBase> p = createPlayer(playerType);
893    if (p == NULL) return NO_INIT;
894
895    if (!p->hardwareOutput()) {
896        mAudioOutput = new AudioOutput(mAudioSessionId);
897        static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput);
898    }
899
900    // now set data source
901    mStatus = p->setDataSource(fd, offset, length);
902    if (mStatus == NO_ERROR) mPlayer = p;
903    return mStatus;
904}
905
906status_t MediaPlayerService::Client::setDataSource(
907        const sp<IStreamSource> &source) {
908    // create the right type of player
909    sp<MediaPlayerBase> p = createPlayer(NU_PLAYER);
910
911    if (p == NULL) {
912        return NO_INIT;
913    }
914
915    if (!p->hardwareOutput()) {
916        mAudioOutput = new AudioOutput(mAudioSessionId);
917        static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput);
918    }
919
920    // now set data source
921    mStatus = p->setDataSource(source);
922
923    if (mStatus == OK) {
924        mPlayer = p;
925    }
926
927    return mStatus;
928}
929
930status_t MediaPlayerService::Client::setVideoSurface(const sp<Surface>& surface)
931{
932    LOGV("[%d] setVideoSurface(%p)", mConnId, surface.get());
933    sp<MediaPlayerBase> p = getPlayer();
934    if (p == 0) return UNKNOWN_ERROR;
935    return p->setVideoSurface(surface);
936}
937
938status_t MediaPlayerService::Client::invoke(const Parcel& request,
939                                            Parcel *reply)
940{
941    sp<MediaPlayerBase> p = getPlayer();
942    if (p == NULL) return UNKNOWN_ERROR;
943    return p->invoke(request, reply);
944}
945
946// This call doesn't need to access the native player.
947status_t MediaPlayerService::Client::setMetadataFilter(const Parcel& filter)
948{
949    status_t status;
950    media::Metadata::Filter allow, drop;
951
952    if (unmarshallFilter(filter, &allow, &status) &&
953        unmarshallFilter(filter, &drop, &status)) {
954        Mutex::Autolock lock(mLock);
955
956        mMetadataAllow = allow;
957        mMetadataDrop = drop;
958    }
959    return status;
960}
961
962status_t MediaPlayerService::Client::getMetadata(
963        bool update_only, bool apply_filter, Parcel *reply)
964{
965    sp<MediaPlayerBase> player = getPlayer();
966    if (player == 0) return UNKNOWN_ERROR;
967
968    status_t status;
969    // Placeholder for the return code, updated by the caller.
970    reply->writeInt32(-1);
971
972    media::Metadata::Filter ids;
973
974    // We don't block notifications while we fetch the data. We clear
975    // mMetadataUpdated first so we don't lose notifications happening
976    // during the rest of this call.
977    {
978        Mutex::Autolock lock(mLock);
979        if (update_only) {
980            ids = mMetadataUpdated;
981        }
982        mMetadataUpdated.clear();
983    }
984
985    media::Metadata metadata(reply);
986
987    metadata.appendHeader();
988    status = player->getMetadata(ids, reply);
989
990    if (status != OK) {
991        metadata.resetParcel();
992        LOGE("getMetadata failed %d", status);
993        return status;
994    }
995
996    // FIXME: Implement filtering on the result. Not critical since
997    // filtering takes place on the update notifications already. This
998    // would be when all the metadata are fetch and a filter is set.
999
1000    // Everything is fine, update the metadata length.
1001    metadata.updateLength();
1002    return OK;
1003}
1004
1005status_t MediaPlayerService::Client::prepareAsync()
1006{
1007    LOGV("[%d] prepareAsync", mConnId);
1008    sp<MediaPlayerBase> p = getPlayer();
1009    if (p == 0) return UNKNOWN_ERROR;
1010    status_t ret = p->prepareAsync();
1011#if CALLBACK_ANTAGONIZER
1012    LOGD("start Antagonizer");
1013    if (ret == NO_ERROR) mAntagonizer->start();
1014#endif
1015    return ret;
1016}
1017
1018status_t MediaPlayerService::Client::start()
1019{
1020    LOGV("[%d] start", mConnId);
1021    sp<MediaPlayerBase> p = getPlayer();
1022    if (p == 0) return UNKNOWN_ERROR;
1023    p->setLooping(mLoop);
1024    return p->start();
1025}
1026
1027status_t MediaPlayerService::Client::stop()
1028{
1029    LOGV("[%d] stop", mConnId);
1030    sp<MediaPlayerBase> p = getPlayer();
1031    if (p == 0) return UNKNOWN_ERROR;
1032    return p->stop();
1033}
1034
1035status_t MediaPlayerService::Client::pause()
1036{
1037    LOGV("[%d] pause", mConnId);
1038    sp<MediaPlayerBase> p = getPlayer();
1039    if (p == 0) return UNKNOWN_ERROR;
1040    return p->pause();
1041}
1042
1043status_t MediaPlayerService::Client::isPlaying(bool* state)
1044{
1045    *state = false;
1046    sp<MediaPlayerBase> p = getPlayer();
1047    if (p == 0) return UNKNOWN_ERROR;
1048    *state = p->isPlaying();
1049    LOGV("[%d] isPlaying: %d", mConnId, *state);
1050    return NO_ERROR;
1051}
1052
1053status_t MediaPlayerService::Client::getCurrentPosition(int *msec)
1054{
1055    LOGV("getCurrentPosition");
1056    sp<MediaPlayerBase> p = getPlayer();
1057    if (p == 0) return UNKNOWN_ERROR;
1058    status_t ret = p->getCurrentPosition(msec);
1059    if (ret == NO_ERROR) {
1060        LOGV("[%d] getCurrentPosition = %d", mConnId, *msec);
1061    } else {
1062        LOGE("getCurrentPosition returned %d", ret);
1063    }
1064    return ret;
1065}
1066
1067status_t MediaPlayerService::Client::getDuration(int *msec)
1068{
1069    LOGV("getDuration");
1070    sp<MediaPlayerBase> p = getPlayer();
1071    if (p == 0) return UNKNOWN_ERROR;
1072    status_t ret = p->getDuration(msec);
1073    if (ret == NO_ERROR) {
1074        LOGV("[%d] getDuration = %d", mConnId, *msec);
1075    } else {
1076        LOGE("getDuration returned %d", ret);
1077    }
1078    return ret;
1079}
1080
1081status_t MediaPlayerService::Client::seekTo(int msec)
1082{
1083    LOGV("[%d] seekTo(%d)", mConnId, msec);
1084    sp<MediaPlayerBase> p = getPlayer();
1085    if (p == 0) return UNKNOWN_ERROR;
1086    return p->seekTo(msec);
1087}
1088
1089status_t MediaPlayerService::Client::reset()
1090{
1091    LOGV("[%d] reset", mConnId);
1092    sp<MediaPlayerBase> p = getPlayer();
1093    if (p == 0) return UNKNOWN_ERROR;
1094    return p->reset();
1095}
1096
1097status_t MediaPlayerService::Client::setAudioStreamType(int type)
1098{
1099    LOGV("[%d] setAudioStreamType(%d)", mConnId, type);
1100    // TODO: for hardware output, call player instead
1101    Mutex::Autolock l(mLock);
1102    if (mAudioOutput != 0) mAudioOutput->setAudioStreamType(type);
1103    return NO_ERROR;
1104}
1105
1106status_t MediaPlayerService::Client::setLooping(int loop)
1107{
1108    LOGV("[%d] setLooping(%d)", mConnId, loop);
1109    mLoop = loop;
1110    sp<MediaPlayerBase> p = getPlayer();
1111    if (p != 0) return p->setLooping(loop);
1112    return NO_ERROR;
1113}
1114
1115status_t MediaPlayerService::Client::setVolume(float leftVolume, float rightVolume)
1116{
1117    LOGV("[%d] setVolume(%f, %f)", mConnId, leftVolume, rightVolume);
1118    // TODO: for hardware output, call player instead
1119    Mutex::Autolock l(mLock);
1120    if (mAudioOutput != 0) mAudioOutput->setVolume(leftVolume, rightVolume);
1121    return NO_ERROR;
1122}
1123
1124status_t MediaPlayerService::Client::setAuxEffectSendLevel(float level)
1125{
1126    LOGV("[%d] setAuxEffectSendLevel(%f)", mConnId, level);
1127    Mutex::Autolock l(mLock);
1128    if (mAudioOutput != 0) return mAudioOutput->setAuxEffectSendLevel(level);
1129    return NO_ERROR;
1130}
1131
1132status_t MediaPlayerService::Client::attachAuxEffect(int effectId)
1133{
1134    LOGV("[%d] attachAuxEffect(%d)", mConnId, effectId);
1135    Mutex::Autolock l(mLock);
1136    if (mAudioOutput != 0) return mAudioOutput->attachAuxEffect(effectId);
1137    return NO_ERROR;
1138}
1139
1140void MediaPlayerService::Client::notify(void* cookie, int msg, int ext1, int ext2)
1141{
1142    Client* client = static_cast<Client*>(cookie);
1143
1144    if (MEDIA_INFO == msg &&
1145        MEDIA_INFO_METADATA_UPDATE == ext1) {
1146        const media::Metadata::Type metadata_type = ext2;
1147
1148        if(client->shouldDropMetadata(metadata_type)) {
1149            return;
1150        }
1151
1152        // Update the list of metadata that have changed. getMetadata
1153        // also access mMetadataUpdated and clears it.
1154        client->addNewMetadataUpdate(metadata_type);
1155    }
1156    LOGV("[%d] notify (%p, %d, %d, %d)", client->mConnId, cookie, msg, ext1, ext2);
1157    client->mClient->notify(msg, ext1, ext2);
1158}
1159
1160
1161bool MediaPlayerService::Client::shouldDropMetadata(media::Metadata::Type code) const
1162{
1163    Mutex::Autolock lock(mLock);
1164
1165    if (findMetadata(mMetadataDrop, code)) {
1166        return true;
1167    }
1168
1169    if (mMetadataAllow.isEmpty() || findMetadata(mMetadataAllow, code)) {
1170        return false;
1171    } else {
1172        return true;
1173    }
1174}
1175
1176
1177void MediaPlayerService::Client::addNewMetadataUpdate(media::Metadata::Type metadata_type) {
1178    Mutex::Autolock lock(mLock);
1179    if (mMetadataUpdated.indexOf(metadata_type) < 0) {
1180        mMetadataUpdated.add(metadata_type);
1181    }
1182}
1183
1184#if CALLBACK_ANTAGONIZER
1185const int Antagonizer::interval = 10000; // 10 msecs
1186
1187Antagonizer::Antagonizer(notify_callback_f cb, void* client) :
1188    mExit(false), mActive(false), mClient(client), mCb(cb)
1189{
1190    createThread(callbackThread, this);
1191}
1192
1193void Antagonizer::kill()
1194{
1195    Mutex::Autolock _l(mLock);
1196    mActive = false;
1197    mExit = true;
1198    mCondition.wait(mLock);
1199}
1200
1201int Antagonizer::callbackThread(void* user)
1202{
1203    LOGD("Antagonizer started");
1204    Antagonizer* p = reinterpret_cast<Antagonizer*>(user);
1205    while (!p->mExit) {
1206        if (p->mActive) {
1207            LOGV("send event");
1208            p->mCb(p->mClient, 0, 0, 0);
1209        }
1210        usleep(interval);
1211    }
1212    Mutex::Autolock _l(p->mLock);
1213    p->mCondition.signal();
1214    LOGD("Antagonizer stopped");
1215    return 0;
1216}
1217#endif
1218
1219static size_t kDefaultHeapSize = 1024 * 1024; // 1MB
1220
1221sp<IMemory> MediaPlayerService::decode(const char* url, uint32_t *pSampleRate, int* pNumChannels, int* pFormat)
1222{
1223    LOGV("decode(%s)", url);
1224    sp<MemoryBase> mem;
1225    sp<MediaPlayerBase> player;
1226
1227    // Protect our precious, precious DRMd ringtones by only allowing
1228    // decoding of http, but not filesystem paths or content Uris.
1229    // If the application wants to decode those, it should open a
1230    // filedescriptor for them and use that.
1231    if (url != NULL && strncmp(url, "http://", 7) != 0) {
1232        LOGD("Can't decode %s by path, use filedescriptor instead", url);
1233        return mem;
1234    }
1235
1236    player_type playerType = getPlayerType(url);
1237    LOGV("player type = %d", playerType);
1238
1239    // create the right type of player
1240    sp<AudioCache> cache = new AudioCache(url);
1241    player = android::createPlayer(playerType, cache.get(), cache->notify);
1242    if (player == NULL) goto Exit;
1243    if (player->hardwareOutput()) goto Exit;
1244
1245    static_cast<MediaPlayerInterface*>(player.get())->setAudioSink(cache);
1246
1247    // set data source
1248    if (player->setDataSource(url) != NO_ERROR) goto Exit;
1249
1250    LOGV("prepare");
1251    player->prepareAsync();
1252
1253    LOGV("wait for prepare");
1254    if (cache->wait() != NO_ERROR) goto Exit;
1255
1256    LOGV("start");
1257    player->start();
1258
1259    LOGV("wait for playback complete");
1260    if (cache->wait() != NO_ERROR) goto Exit;
1261
1262    mem = new MemoryBase(cache->getHeap(), 0, cache->size());
1263    *pSampleRate = cache->sampleRate();
1264    *pNumChannels = cache->channelCount();
1265    *pFormat = cache->format();
1266    LOGV("return memory @ %p, sampleRate=%u, channelCount = %d, format = %d", mem->pointer(), *pSampleRate, *pNumChannels, *pFormat);
1267
1268Exit:
1269    if (player != 0) player->reset();
1270    return mem;
1271}
1272
1273sp<IMemory> MediaPlayerService::decode(int fd, int64_t offset, int64_t length, uint32_t *pSampleRate, int* pNumChannels, int* pFormat)
1274{
1275    LOGV("decode(%d, %lld, %lld)", fd, offset, length);
1276    sp<MemoryBase> mem;
1277    sp<MediaPlayerBase> player;
1278
1279    player_type playerType = getPlayerType(fd, offset, length);
1280    LOGV("player type = %d", playerType);
1281
1282    // create the right type of player
1283    sp<AudioCache> cache = new AudioCache("decode_fd");
1284    player = android::createPlayer(playerType, cache.get(), cache->notify);
1285    if (player == NULL) goto Exit;
1286    if (player->hardwareOutput()) goto Exit;
1287
1288    static_cast<MediaPlayerInterface*>(player.get())->setAudioSink(cache);
1289
1290    // set data source
1291    if (player->setDataSource(fd, offset, length) != NO_ERROR) goto Exit;
1292
1293    LOGV("prepare");
1294    player->prepareAsync();
1295
1296    LOGV("wait for prepare");
1297    if (cache->wait() != NO_ERROR) goto Exit;
1298
1299    LOGV("start");
1300    player->start();
1301
1302    LOGV("wait for playback complete");
1303    if (cache->wait() != NO_ERROR) goto Exit;
1304
1305    mem = new MemoryBase(cache->getHeap(), 0, cache->size());
1306    *pSampleRate = cache->sampleRate();
1307    *pNumChannels = cache->channelCount();
1308    *pFormat = cache->format();
1309    LOGV("return memory @ %p, sampleRate=%u, channelCount = %d, format = %d", mem->pointer(), *pSampleRate, *pNumChannels, *pFormat);
1310
1311Exit:
1312    if (player != 0) player->reset();
1313    ::close(fd);
1314    return mem;
1315}
1316
1317
1318#undef LOG_TAG
1319#define LOG_TAG "AudioSink"
1320MediaPlayerService::AudioOutput::AudioOutput(int sessionId)
1321    : mCallback(NULL),
1322      mCallbackCookie(NULL),
1323      mSessionId(sessionId) {
1324    LOGV("AudioOutput(%d)", sessionId);
1325    mTrack = 0;
1326    mStreamType = AudioSystem::MUSIC;
1327    mLeftVolume = 1.0;
1328    mRightVolume = 1.0;
1329    mLatency = 0;
1330    mMsecsPerFrame = 0;
1331    mAuxEffectId = 0;
1332    mSendLevel = 0.0;
1333    setMinBufferCount();
1334}
1335
1336MediaPlayerService::AudioOutput::~AudioOutput()
1337{
1338    close();
1339}
1340
1341void MediaPlayerService::AudioOutput::setMinBufferCount()
1342{
1343    char value[PROPERTY_VALUE_MAX];
1344    if (property_get("ro.kernel.qemu", value, 0)) {
1345        mIsOnEmulator = true;
1346        mMinBufferCount = 12;  // to prevent systematic buffer underrun for emulator
1347    }
1348}
1349
1350bool MediaPlayerService::AudioOutput::isOnEmulator()
1351{
1352    setMinBufferCount();
1353    return mIsOnEmulator;
1354}
1355
1356int MediaPlayerService::AudioOutput::getMinBufferCount()
1357{
1358    setMinBufferCount();
1359    return mMinBufferCount;
1360}
1361
1362ssize_t MediaPlayerService::AudioOutput::bufferSize() const
1363{
1364    if (mTrack == 0) return NO_INIT;
1365    return mTrack->frameCount() * frameSize();
1366}
1367
1368ssize_t MediaPlayerService::AudioOutput::frameCount() const
1369{
1370    if (mTrack == 0) return NO_INIT;
1371    return mTrack->frameCount();
1372}
1373
1374ssize_t MediaPlayerService::AudioOutput::channelCount() const
1375{
1376    if (mTrack == 0) return NO_INIT;
1377    return mTrack->channelCount();
1378}
1379
1380ssize_t MediaPlayerService::AudioOutput::frameSize() const
1381{
1382    if (mTrack == 0) return NO_INIT;
1383    return mTrack->frameSize();
1384}
1385
1386uint32_t MediaPlayerService::AudioOutput::latency () const
1387{
1388    return mLatency;
1389}
1390
1391float MediaPlayerService::AudioOutput::msecsPerFrame() const
1392{
1393    return mMsecsPerFrame;
1394}
1395
1396status_t MediaPlayerService::AudioOutput::getPosition(uint32_t *position)
1397{
1398    if (mTrack == 0) return NO_INIT;
1399    return mTrack->getPosition(position);
1400}
1401
1402status_t MediaPlayerService::AudioOutput::open(
1403        uint32_t sampleRate, int channelCount, int format, int bufferCount,
1404        AudioCallback cb, void *cookie)
1405{
1406    mCallback = cb;
1407    mCallbackCookie = cookie;
1408
1409    // Check argument "bufferCount" against the mininum buffer count
1410    if (bufferCount < mMinBufferCount) {
1411        LOGD("bufferCount (%d) is too small and increased to %d", bufferCount, mMinBufferCount);
1412        bufferCount = mMinBufferCount;
1413
1414    }
1415    LOGV("open(%u, %d, %d, %d, %d)", sampleRate, channelCount, format, bufferCount,mSessionId);
1416    if (mTrack) close();
1417    int afSampleRate;
1418    int afFrameCount;
1419    int frameCount;
1420
1421    if (AudioSystem::getOutputFrameCount(&afFrameCount, mStreamType) != NO_ERROR) {
1422        return NO_INIT;
1423    }
1424    if (AudioSystem::getOutputSamplingRate(&afSampleRate, mStreamType) != NO_ERROR) {
1425        return NO_INIT;
1426    }
1427
1428    frameCount = (sampleRate*afFrameCount*bufferCount)/afSampleRate;
1429
1430    AudioTrack *t;
1431    if (mCallback != NULL) {
1432        t = new AudioTrack(
1433                mStreamType,
1434                sampleRate,
1435                format,
1436                (channelCount == 2) ? AudioSystem::CHANNEL_OUT_STEREO : AudioSystem::CHANNEL_OUT_MONO,
1437                frameCount,
1438                0 /* flags */,
1439                CallbackWrapper,
1440                this,
1441                0,
1442                mSessionId);
1443    } else {
1444        t = new AudioTrack(
1445                mStreamType,
1446                sampleRate,
1447                format,
1448                (channelCount == 2) ? AudioSystem::CHANNEL_OUT_STEREO : AudioSystem::CHANNEL_OUT_MONO,
1449                frameCount,
1450                0,
1451                NULL,
1452                NULL,
1453                0,
1454                mSessionId);
1455    }
1456
1457    if ((t == 0) || (t->initCheck() != NO_ERROR)) {
1458        LOGE("Unable to create audio track");
1459        delete t;
1460        return NO_INIT;
1461    }
1462
1463    LOGV("setVolume");
1464    t->setVolume(mLeftVolume, mRightVolume);
1465
1466    mMsecsPerFrame = 1.e3 / (float) sampleRate;
1467    mLatency = t->latency();
1468    mTrack = t;
1469
1470    t->setAuxEffectSendLevel(mSendLevel);
1471    return t->attachAuxEffect(mAuxEffectId);;
1472}
1473
1474void MediaPlayerService::AudioOutput::start()
1475{
1476    LOGV("start");
1477    if (mTrack) {
1478        mTrack->setVolume(mLeftVolume, mRightVolume);
1479        mTrack->setAuxEffectSendLevel(mSendLevel);
1480        mTrack->start();
1481    }
1482}
1483
1484
1485
1486ssize_t MediaPlayerService::AudioOutput::write(const void* buffer, size_t size)
1487{
1488    LOG_FATAL_IF(mCallback != NULL, "Don't call write if supplying a callback.");
1489
1490    //LOGV("write(%p, %u)", buffer, size);
1491    if (mTrack) {
1492        ssize_t ret = mTrack->write(buffer, size);
1493        return ret;
1494    }
1495    return NO_INIT;
1496}
1497
1498void MediaPlayerService::AudioOutput::stop()
1499{
1500    LOGV("stop");
1501    if (mTrack) mTrack->stop();
1502}
1503
1504void MediaPlayerService::AudioOutput::flush()
1505{
1506    LOGV("flush");
1507    if (mTrack) mTrack->flush();
1508}
1509
1510void MediaPlayerService::AudioOutput::pause()
1511{
1512    LOGV("pause");
1513    if (mTrack) mTrack->pause();
1514}
1515
1516void MediaPlayerService::AudioOutput::close()
1517{
1518    LOGV("close");
1519    delete mTrack;
1520    mTrack = 0;
1521}
1522
1523void MediaPlayerService::AudioOutput::setVolume(float left, float right)
1524{
1525    LOGV("setVolume(%f, %f)", left, right);
1526    mLeftVolume = left;
1527    mRightVolume = right;
1528    if (mTrack) {
1529        mTrack->setVolume(left, right);
1530    }
1531}
1532
1533status_t MediaPlayerService::AudioOutput::setAuxEffectSendLevel(float level)
1534{
1535    LOGV("setAuxEffectSendLevel(%f)", level);
1536    mSendLevel = level;
1537    if (mTrack) {
1538        return mTrack->setAuxEffectSendLevel(level);
1539    }
1540    return NO_ERROR;
1541}
1542
1543status_t MediaPlayerService::AudioOutput::attachAuxEffect(int effectId)
1544{
1545    LOGV("attachAuxEffect(%d)", effectId);
1546    mAuxEffectId = effectId;
1547    if (mTrack) {
1548        return mTrack->attachAuxEffect(effectId);
1549    }
1550    return NO_ERROR;
1551}
1552
1553// static
1554void MediaPlayerService::AudioOutput::CallbackWrapper(
1555        int event, void *cookie, void *info) {
1556    //LOGV("callbackwrapper");
1557    if (event != AudioTrack::EVENT_MORE_DATA) {
1558        return;
1559    }
1560
1561    AudioOutput *me = (AudioOutput *)cookie;
1562    AudioTrack::Buffer *buffer = (AudioTrack::Buffer *)info;
1563
1564    size_t actualSize = (*me->mCallback)(
1565            me, buffer->raw, buffer->size, me->mCallbackCookie);
1566
1567    buffer->size = actualSize;
1568
1569}
1570
1571int MediaPlayerService::AudioOutput::getSessionId()
1572{
1573    return mSessionId;
1574}
1575
1576#undef LOG_TAG
1577#define LOG_TAG "AudioCache"
1578MediaPlayerService::AudioCache::AudioCache(const char* name) :
1579    mChannelCount(0), mFrameCount(1024), mSampleRate(0), mSize(0),
1580    mError(NO_ERROR), mCommandComplete(false)
1581{
1582    // create ashmem heap
1583    mHeap = new MemoryHeapBase(kDefaultHeapSize, 0, name);
1584}
1585
1586uint32_t MediaPlayerService::AudioCache::latency () const
1587{
1588    return 0;
1589}
1590
1591float MediaPlayerService::AudioCache::msecsPerFrame() const
1592{
1593    return mMsecsPerFrame;
1594}
1595
1596status_t MediaPlayerService::AudioCache::getPosition(uint32_t *position)
1597{
1598    if (position == 0) return BAD_VALUE;
1599    *position = mSize;
1600    return NO_ERROR;
1601}
1602
1603////////////////////////////////////////////////////////////////////////////////
1604
1605struct CallbackThread : public Thread {
1606    CallbackThread(const wp<MediaPlayerBase::AudioSink> &sink,
1607                   MediaPlayerBase::AudioSink::AudioCallback cb,
1608                   void *cookie);
1609
1610protected:
1611    virtual ~CallbackThread();
1612
1613    virtual bool threadLoop();
1614
1615private:
1616    wp<MediaPlayerBase::AudioSink> mSink;
1617    MediaPlayerBase::AudioSink::AudioCallback mCallback;
1618    void *mCookie;
1619    void *mBuffer;
1620    size_t mBufferSize;
1621
1622    CallbackThread(const CallbackThread &);
1623    CallbackThread &operator=(const CallbackThread &);
1624};
1625
1626CallbackThread::CallbackThread(
1627        const wp<MediaPlayerBase::AudioSink> &sink,
1628        MediaPlayerBase::AudioSink::AudioCallback cb,
1629        void *cookie)
1630    : mSink(sink),
1631      mCallback(cb),
1632      mCookie(cookie),
1633      mBuffer(NULL),
1634      mBufferSize(0) {
1635}
1636
1637CallbackThread::~CallbackThread() {
1638    if (mBuffer) {
1639        free(mBuffer);
1640        mBuffer = NULL;
1641    }
1642}
1643
1644bool CallbackThread::threadLoop() {
1645    sp<MediaPlayerBase::AudioSink> sink = mSink.promote();
1646    if (sink == NULL) {
1647        return false;
1648    }
1649
1650    if (mBuffer == NULL) {
1651        mBufferSize = sink->bufferSize();
1652        mBuffer = malloc(mBufferSize);
1653    }
1654
1655    size_t actualSize =
1656        (*mCallback)(sink.get(), mBuffer, mBufferSize, mCookie);
1657
1658    if (actualSize > 0) {
1659        sink->write(mBuffer, actualSize);
1660    }
1661
1662    return true;
1663}
1664
1665////////////////////////////////////////////////////////////////////////////////
1666
1667status_t MediaPlayerService::AudioCache::open(
1668        uint32_t sampleRate, int channelCount, int format, int bufferCount,
1669        AudioCallback cb, void *cookie)
1670{
1671    LOGV("open(%u, %d, %d, %d)", sampleRate, channelCount, format, bufferCount);
1672    if (mHeap->getHeapID() < 0) {
1673        return NO_INIT;
1674    }
1675
1676    mSampleRate = sampleRate;
1677    mChannelCount = (uint16_t)channelCount;
1678    mFormat = (uint16_t)format;
1679    mMsecsPerFrame = 1.e3 / (float) sampleRate;
1680
1681    if (cb != NULL) {
1682        mCallbackThread = new CallbackThread(this, cb, cookie);
1683    }
1684    return NO_ERROR;
1685}
1686
1687void MediaPlayerService::AudioCache::start() {
1688    if (mCallbackThread != NULL) {
1689        mCallbackThread->run("AudioCache callback");
1690    }
1691}
1692
1693void MediaPlayerService::AudioCache::stop() {
1694    if (mCallbackThread != NULL) {
1695        mCallbackThread->requestExitAndWait();
1696    }
1697}
1698
1699ssize_t MediaPlayerService::AudioCache::write(const void* buffer, size_t size)
1700{
1701    LOGV("write(%p, %u)", buffer, size);
1702    if ((buffer == 0) || (size == 0)) return size;
1703
1704    uint8_t* p = static_cast<uint8_t*>(mHeap->getBase());
1705    if (p == NULL) return NO_INIT;
1706    p += mSize;
1707    LOGV("memcpy(%p, %p, %u)", p, buffer, size);
1708    if (mSize + size > mHeap->getSize()) {
1709        LOGE("Heap size overflow! req size: %d, max size: %d", (mSize + size), mHeap->getSize());
1710        size = mHeap->getSize() - mSize;
1711    }
1712    memcpy(p, buffer, size);
1713    mSize += size;
1714    return size;
1715}
1716
1717// call with lock held
1718status_t MediaPlayerService::AudioCache::wait()
1719{
1720    Mutex::Autolock lock(mLock);
1721    while (!mCommandComplete) {
1722        mSignal.wait(mLock);
1723    }
1724    mCommandComplete = false;
1725
1726    if (mError == NO_ERROR) {
1727        LOGV("wait - success");
1728    } else {
1729        LOGV("wait - error");
1730    }
1731    return mError;
1732}
1733
1734void MediaPlayerService::AudioCache::notify(void* cookie, int msg, int ext1, int ext2)
1735{
1736    LOGV("notify(%p, %d, %d, %d)", cookie, msg, ext1, ext2);
1737    AudioCache* p = static_cast<AudioCache*>(cookie);
1738
1739    // ignore buffering messages
1740    switch (msg)
1741    {
1742    case MEDIA_ERROR:
1743        LOGE("Error %d, %d occurred", ext1, ext2);
1744        p->mError = ext1;
1745        break;
1746    case MEDIA_PREPARED:
1747        LOGV("prepared");
1748        break;
1749    case MEDIA_PLAYBACK_COMPLETE:
1750        LOGV("playback complete");
1751        break;
1752    default:
1753        LOGV("ignored");
1754        return;
1755    }
1756
1757    // wake up thread
1758    Mutex::Autolock lock(p->mLock);
1759    p->mCommandComplete = true;
1760    p->mSignal.signal();
1761}
1762
1763int MediaPlayerService::AudioCache::getSessionId()
1764{
1765    return 0;
1766}
1767
1768void MediaPlayerService::addBatteryData(uint32_t params)
1769{
1770    Mutex::Autolock lock(mLock);
1771    int uid = IPCThreadState::self()->getCallingUid();
1772    if (uid == AID_MEDIA) {
1773        return;
1774    }
1775    int index = mBatteryData.indexOfKey(uid);
1776    int32_t time = systemTime() / 1000000L;
1777
1778    if (index < 0) { // create a new entry for this UID
1779        BatteryUsageInfo info;
1780        info.audioTotalTime = 0;
1781        info.videoTotalTime = 0;
1782        info.audioLastTime = 0;
1783        info.videoLastTime = 0;
1784        info.refCount = 0;
1785
1786        mBatteryData.add(uid, info);
1787    }
1788
1789    BatteryUsageInfo &info = mBatteryData.editValueFor(uid);
1790
1791    if (params & kBatteryDataCodecStarted) {
1792        if (params & kBatteryDataTrackAudio) {
1793            info.audioLastTime -= time;
1794            info.refCount ++;
1795        }
1796        if (params & kBatteryDataTrackVideo) {
1797            info.videoLastTime -= time;
1798            info.refCount ++;
1799        }
1800    } else {
1801        if (info.refCount == 0) {
1802            LOGW("Battery track warning: refCount is already 0");
1803            return;
1804        } else if (info.refCount < 0) {
1805            LOGE("Battery track error: refCount < 0");
1806            mBatteryData.removeItem(uid);
1807            return;
1808        }
1809
1810        if (params & kBatteryDataTrackAudio) {
1811            info.audioLastTime += time;
1812            info.refCount --;
1813        }
1814        if (params & kBatteryDataTrackVideo) {
1815            info.videoLastTime += time;
1816            info.refCount --;
1817        }
1818
1819        // no stream is being played by this UID
1820        if (info.refCount == 0) {
1821            info.audioTotalTime += info.audioLastTime;
1822            info.audioLastTime = 0;
1823            info.videoTotalTime += info.videoLastTime;
1824            info.videoLastTime = 0;
1825        }
1826    }
1827}
1828
1829status_t MediaPlayerService::pullBatteryData(Parcel* reply) {
1830    Mutex::Autolock lock(mLock);
1831    BatteryUsageInfo info;
1832    int size = mBatteryData.size();
1833
1834    reply->writeInt32(size);
1835    int i = 0;
1836
1837    while (i < size) {
1838        info = mBatteryData.valueAt(i);
1839
1840        reply->writeInt32(mBatteryData.keyAt(i)); //UID
1841        reply->writeInt32(info.audioTotalTime);
1842        reply->writeInt32(info.videoTotalTime);
1843
1844        info.audioTotalTime = 0;
1845        info.videoTotalTime = 0;
1846
1847        // remove the UID entry where no stream is being played
1848        if (info.refCount <= 0) {
1849            mBatteryData.removeItemsAt(i);
1850            size --;
1851            i --;
1852        }
1853        i++;
1854    }
1855    return NO_ERROR;
1856}
1857} // namespace android
1858