MediaPlayerService.cpp revision 9816016afb2a13c6a866cd047d57020566a8b9a9 
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 <binder/IBatteryStats.h>
38#include <binder/IPCThreadState.h>
39#include <binder/IServiceManager.h>
40#include <binder/MemoryHeapBase.h>
41#include <binder/MemoryBase.h>
42#include <gui/Surface.h>
43#include <utils/Errors.h>  // for status_t
44#include <utils/String8.h>
45#include <utils/SystemClock.h>
46#include <utils/Timers.h>
47#include <utils/Vector.h>
48
49#include <media/IMediaHTTPService.h>
50#include <media/IRemoteDisplay.h>
51#include <media/IRemoteDisplayClient.h>
52#include <media/MediaPlayerInterface.h>
53#include <media/mediarecorder.h>
54#include <media/MediaMetadataRetrieverInterface.h>
55#include <media/Metadata.h>
56#include <media/AudioTrack.h>
57#include <media/MemoryLeakTrackUtil.h>
58#include <media/stagefright/MediaCodecList.h>
59#include <media/stagefright/MediaErrors.h>
60#include <media/stagefright/AudioPlayer.h>
61#include <media/stagefright/foundation/ADebug.h>
62#include <media/stagefright/foundation/ALooperRoster.h>
63
64#include <system/audio.h>
65
66#include <private/android_filesystem_config.h>
67
68#include "ActivityManager.h"
69#include "MediaRecorderClient.h"
70#include "MediaPlayerService.h"
71#include "MetadataRetrieverClient.h"
72#include "MediaPlayerFactory.h"
73
74#include "TestPlayerStub.h"
75#include "StagefrightPlayer.h"
76#include "nuplayer/NuPlayerDriver.h"
77
78#include <OMX.h>
79
80#include "Crypto.h"
81#include "Drm.h"
82#include "HDCP.h"
83#include "HTTPBase.h"
84#include "RemoteDisplay.h"
85
86namespace {
87using android::media::Metadata;
88using android::status_t;
89using android::OK;
90using android::BAD_VALUE;
91using android::NOT_ENOUGH_DATA;
92using android::Parcel;
93
94// Max number of entries in the filter.
95const int kMaxFilterSize = 64;  // I pulled that out of thin air.
96
97// FIXME: Move all the metadata related function in the Metadata.cpp
98
99
100// Unmarshall a filter from a Parcel.
101// Filter format in a parcel:
102//
103//  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
104// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
105// |                       number of entries (n)                   |
106// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
107// |                       metadata type 1                         |
108// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
109// |                       metadata type 2                         |
110// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
111//  ....
112// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
113// |                       metadata type n                         |
114// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
115//
116// @param p Parcel that should start with a filter.
117// @param[out] filter On exit contains the list of metadata type to be
118//                    filtered.
119// @param[out] status On exit contains the status code to be returned.
120// @return true if the parcel starts with a valid filter.
121bool unmarshallFilter(const Parcel& p,
122                      Metadata::Filter *filter,
123                      status_t *status)
124{
125    int32_t val;
126    if (p.readInt32(&val) != OK)
127    {
128        ALOGE("Failed to read filter's length");
129        *status = NOT_ENOUGH_DATA;
130        return false;
131    }
132
133    if( val > kMaxFilterSize || val < 0)
134    {
135        ALOGE("Invalid filter len %d", val);
136        *status = BAD_VALUE;
137        return false;
138    }
139
140    const size_t num = val;
141
142    filter->clear();
143    filter->setCapacity(num);
144
145    size_t size = num * sizeof(Metadata::Type);
146
147
148    if (p.dataAvail() < size)
149    {
150        ALOGE("Filter too short expected %d but got %d", size, p.dataAvail());
151        *status = NOT_ENOUGH_DATA;
152        return false;
153    }
154
155    const Metadata::Type *data =
156            static_cast<const Metadata::Type*>(p.readInplace(size));
157
158    if (NULL == data)
159    {
160        ALOGE("Filter had no data");
161        *status = BAD_VALUE;
162        return false;
163    }
164
165    // TODO: The stl impl of vector would be more efficient here
166    // because it degenerates into a memcpy on pod types. Try to
167    // replace later or use stl::set.
168    for (size_t i = 0; i < num; ++i)
169    {
170        filter->add(*data);
171        ++data;
172    }
173    *status = OK;
174    return true;
175}
176
177// @param filter Of metadata type.
178// @param val To be searched.
179// @return true if a match was found.
180bool findMetadata(const Metadata::Filter& filter, const int32_t val)
181{
182    // Deal with empty and ANY right away
183    if (filter.isEmpty()) return false;
184    if (filter[0] == Metadata::kAny) return true;
185
186    return filter.indexOf(val) >= 0;
187}
188
189}  // anonymous namespace
190
191
192namespace {
193using android::Parcel;
194using android::String16;
195
196// marshalling tag indicating flattened utf16 tags
197// keep in sync with frameworks/base/media/java/android/media/AudioAttributes.java
198const int32_t kAudioAttributesMarshallTagFlattenTags = 1;
199
200// Audio attributes format in a parcel:
201//
202//  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
203// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
204// |                       usage                                   |
205// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
206// |                       content_type                            |
207// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
208// |                       source                                  |
209// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
210// |                       flags                                   |
211// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
212// |                       kAudioAttributesMarshallTagFlattenTags  | // ignore tags if not found
213// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
214// |                       flattened tags in UTF16                 |
215// |                         ...                                   |
216// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
217//
218// @param p Parcel that contains audio attributes.
219// @param[out] attributes On exit points to an initialized audio_attributes_t structure
220// @param[out] status On exit contains the status code to be returned.
221void unmarshallAudioAttributes(const Parcel& parcel, audio_attributes_t *attributes)
222{
223    attributes->usage = (audio_usage_t) parcel.readInt32();
224    attributes->content_type = (audio_content_type_t) parcel.readInt32();
225    attributes->source = (audio_source_t) parcel.readInt32();
226    attributes->flags = (audio_flags_mask_t) parcel.readInt32();
227    const bool hasFlattenedTag = (parcel.readInt32() == kAudioAttributesMarshallTagFlattenTags);
228    if (hasFlattenedTag) {
229        // the tags are UTF16, convert to UTF8
230        String16 tags = parcel.readString16();
231        ssize_t realTagSize = utf16_to_utf8_length(tags.string(), tags.size());
232        if (realTagSize <= 0) {
233            strcpy(attributes->tags, "");
234        } else {
235            // copy the flattened string into the attributes as the destination for the conversion:
236            // copying array size -1, array for tags was calloc'd, no need to NULL-terminate it
237            size_t tagSize = realTagSize > AUDIO_ATTRIBUTES_TAGS_MAX_SIZE - 1 ?
238                    AUDIO_ATTRIBUTES_TAGS_MAX_SIZE - 1 : realTagSize;
239            utf16_to_utf8(tags.string(), tagSize, attributes->tags);
240        }
241    } else {
242        ALOGE("unmarshallAudioAttributes() received unflattened tags, ignoring tag values");
243        strcpy(attributes->tags, "");
244    }
245}
246} // anonymous namespace
247
248
249namespace android {
250
251extern ALooperRoster gLooperRoster;
252
253
254static bool checkPermission(const char* permissionString) {
255#ifndef HAVE_ANDROID_OS
256    return true;
257#endif
258    if (getpid() == IPCThreadState::self()->getCallingPid()) return true;
259    bool ok = checkCallingPermission(String16(permissionString));
260    if (!ok) ALOGE("Request requires %s", permissionString);
261    return ok;
262}
263
264// TODO: Find real cause of Audio/Video delay in PV framework and remove this workaround
265/* static */ int MediaPlayerService::AudioOutput::mMinBufferCount = 4;
266/* static */ bool MediaPlayerService::AudioOutput::mIsOnEmulator = false;
267
268void MediaPlayerService::instantiate() {
269    defaultServiceManager()->addService(
270            String16("media.player"), new MediaPlayerService());
271}
272
273MediaPlayerService::MediaPlayerService()
274{
275    ALOGV("MediaPlayerService created");
276    mNextConnId = 1;
277
278    mBatteryAudio.refCount = 0;
279    for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
280        mBatteryAudio.deviceOn[i] = 0;
281        mBatteryAudio.lastTime[i] = 0;
282        mBatteryAudio.totalTime[i] = 0;
283    }
284    // speaker is on by default
285    mBatteryAudio.deviceOn[SPEAKER] = 1;
286
287    // reset battery stats
288    // if the mediaserver has crashed, battery stats could be left
289    // in bad state, reset the state upon service start.
290    const sp<IServiceManager> sm(defaultServiceManager());
291    if (sm != NULL) {
292        const String16 name("batterystats");
293        sp<IBatteryStats> batteryStats =
294                interface_cast<IBatteryStats>(sm->getService(name));
295        if (batteryStats != NULL) {
296            batteryStats->noteResetVideo();
297            batteryStats->noteResetAudio();
298        }
299    }
300
301    MediaPlayerFactory::registerBuiltinFactories();
302}
303
304MediaPlayerService::~MediaPlayerService()
305{
306    ALOGV("MediaPlayerService destroyed");
307}
308
309sp<IMediaRecorder> MediaPlayerService::createMediaRecorder()
310{
311    pid_t pid = IPCThreadState::self()->getCallingPid();
312    sp<MediaRecorderClient> recorder = new MediaRecorderClient(this, pid);
313    wp<MediaRecorderClient> w = recorder;
314    Mutex::Autolock lock(mLock);
315    mMediaRecorderClients.add(w);
316    ALOGV("Create new media recorder client from pid %d", pid);
317    return recorder;
318}
319
320void MediaPlayerService::removeMediaRecorderClient(wp<MediaRecorderClient> client)
321{
322    Mutex::Autolock lock(mLock);
323    mMediaRecorderClients.remove(client);
324    ALOGV("Delete media recorder client");
325}
326
327sp<IMediaMetadataRetriever> MediaPlayerService::createMetadataRetriever()
328{
329    pid_t pid = IPCThreadState::self()->getCallingPid();
330    sp<MetadataRetrieverClient> retriever = new MetadataRetrieverClient(pid);
331    ALOGV("Create new media retriever from pid %d", pid);
332    return retriever;
333}
334
335sp<IMediaPlayer> MediaPlayerService::create(const sp<IMediaPlayerClient>& client,
336        int audioSessionId)
337{
338    pid_t pid = IPCThreadState::self()->getCallingPid();
339    int32_t connId = android_atomic_inc(&mNextConnId);
340
341    sp<Client> c = new Client(
342            this, pid, connId, client, audioSessionId,
343            IPCThreadState::self()->getCallingUid());
344
345    ALOGV("Create new client(%d) from pid %d, uid %d, ", connId, pid,
346         IPCThreadState::self()->getCallingUid());
347
348    wp<Client> w = c;
349    {
350        Mutex::Autolock lock(mLock);
351        mClients.add(w);
352    }
353    return c;
354}
355
356sp<IMediaCodecList> MediaPlayerService::getCodecList() const {
357    return MediaCodecList::getLocalInstance();
358}
359
360sp<IOMX> MediaPlayerService::getOMX() {
361    Mutex::Autolock autoLock(mLock);
362
363    if (mOMX.get() == NULL) {
364        mOMX = new OMX;
365    }
366
367    return mOMX;
368}
369
370sp<ICrypto> MediaPlayerService::makeCrypto() {
371    return new Crypto;
372}
373
374sp<IDrm> MediaPlayerService::makeDrm() {
375    return new Drm;
376}
377
378sp<IHDCP> MediaPlayerService::makeHDCP(bool createEncryptionModule) {
379    return new HDCP(createEncryptionModule);
380}
381
382sp<IRemoteDisplay> MediaPlayerService::listenForRemoteDisplay(
383        const sp<IRemoteDisplayClient>& client, const String8& iface) {
384    if (!checkPermission("android.permission.CONTROL_WIFI_DISPLAY")) {
385        return NULL;
386    }
387
388    return new RemoteDisplay(client, iface.string());
389}
390
391status_t MediaPlayerService::AudioOutput::dump(int fd, const Vector<String16>& args) const
392{
393    const size_t SIZE = 256;
394    char buffer[SIZE];
395    String8 result;
396
397    result.append(" AudioOutput\n");
398    snprintf(buffer, 255, "  stream type(%d), left - right volume(%f, %f)\n",
399            mStreamType, mLeftVolume, mRightVolume);
400    result.append(buffer);
401    snprintf(buffer, 255, "  msec per frame(%f), latency (%d)\n",
402            mMsecsPerFrame, (mTrack != 0) ? mTrack->latency() : -1);
403    result.append(buffer);
404    snprintf(buffer, 255, "  aux effect id(%d), send level (%f)\n",
405            mAuxEffectId, mSendLevel);
406    result.append(buffer);
407
408    ::write(fd, result.string(), result.size());
409    if (mTrack != 0) {
410        mTrack->dump(fd, args);
411    }
412    return NO_ERROR;
413}
414
415status_t MediaPlayerService::Client::dump(int fd, const Vector<String16>& args) const
416{
417    const size_t SIZE = 256;
418    char buffer[SIZE];
419    String8 result;
420    result.append(" Client\n");
421    snprintf(buffer, 255, "  pid(%d), connId(%d), status(%d), looping(%s)\n",
422            mPid, mConnId, mStatus, mLoop?"true": "false");
423    result.append(buffer);
424    write(fd, result.string(), result.size());
425    if (mPlayer != NULL) {
426        mPlayer->dump(fd, args);
427    }
428    if (mAudioOutput != 0) {
429        mAudioOutput->dump(fd, args);
430    }
431    write(fd, "\n", 1);
432    return NO_ERROR;
433}
434
435/**
436 * The only arguments this understands right now are -c, -von and -voff,
437 * which are parsed by ALooperRoster::dump()
438 */
439status_t MediaPlayerService::dump(int fd, const Vector<String16>& args)
440{
441    const size_t SIZE = 256;
442    char buffer[SIZE];
443    String8 result;
444    if (checkCallingPermission(String16("android.permission.DUMP")) == false) {
445        snprintf(buffer, SIZE, "Permission Denial: "
446                "can't dump MediaPlayerService from pid=%d, uid=%d\n",
447                IPCThreadState::self()->getCallingPid(),
448                IPCThreadState::self()->getCallingUid());
449        result.append(buffer);
450    } else {
451        Mutex::Autolock lock(mLock);
452        for (int i = 0, n = mClients.size(); i < n; ++i) {
453            sp<Client> c = mClients[i].promote();
454            if (c != 0) c->dump(fd, args);
455        }
456        if (mMediaRecorderClients.size() == 0) {
457                result.append(" No media recorder client\n\n");
458        } else {
459            for (int i = 0, n = mMediaRecorderClients.size(); i < n; ++i) {
460                sp<MediaRecorderClient> c = mMediaRecorderClients[i].promote();
461                if (c != 0) {
462                    snprintf(buffer, 255, " MediaRecorderClient pid(%d)\n", c->mPid);
463                    result.append(buffer);
464                    write(fd, result.string(), result.size());
465                    result = "\n";
466                    c->dump(fd, args);
467                }
468            }
469        }
470
471        result.append(" Files opened and/or mapped:\n");
472        snprintf(buffer, SIZE, "/proc/%d/maps", getpid());
473        FILE *f = fopen(buffer, "r");
474        if (f) {
475            while (!feof(f)) {
476                fgets(buffer, SIZE, f);
477                if (strstr(buffer, " /storage/") ||
478                    strstr(buffer, " /system/sounds/") ||
479                    strstr(buffer, " /data/") ||
480                    strstr(buffer, " /system/media/")) {
481                    result.append("  ");
482                    result.append(buffer);
483                }
484            }
485            fclose(f);
486        } else {
487            result.append("couldn't open ");
488            result.append(buffer);
489            result.append("\n");
490        }
491
492        snprintf(buffer, SIZE, "/proc/%d/fd", getpid());
493        DIR *d = opendir(buffer);
494        if (d) {
495            struct dirent *ent;
496            while((ent = readdir(d)) != NULL) {
497                if (strcmp(ent->d_name,".") && strcmp(ent->d_name,"..")) {
498                    snprintf(buffer, SIZE, "/proc/%d/fd/%s", getpid(), ent->d_name);
499                    struct stat s;
500                    if (lstat(buffer, &s) == 0) {
501                        if ((s.st_mode & S_IFMT) == S_IFLNK) {
502                            char linkto[256];
503                            int len = readlink(buffer, linkto, sizeof(linkto));
504                            if(len > 0) {
505                                if(len > 255) {
506                                    linkto[252] = '.';
507                                    linkto[253] = '.';
508                                    linkto[254] = '.';
509                                    linkto[255] = 0;
510                                } else {
511                                    linkto[len] = 0;
512                                }
513                                if (strstr(linkto, "/storage/") == linkto ||
514                                    strstr(linkto, "/system/sounds/") == linkto ||
515                                    strstr(linkto, "/data/") == linkto ||
516                                    strstr(linkto, "/system/media/") == linkto) {
517                                    result.append("  ");
518                                    result.append(buffer);
519                                    result.append(" -> ");
520                                    result.append(linkto);
521                                    result.append("\n");
522                                }
523                            }
524                        } else {
525                            result.append("  unexpected type for ");
526                            result.append(buffer);
527                            result.append("\n");
528                        }
529                    }
530                }
531            }
532            closedir(d);
533        } else {
534            result.append("couldn't open ");
535            result.append(buffer);
536            result.append("\n");
537        }
538
539        gLooperRoster.dump(fd, args);
540
541        bool dumpMem = false;
542        for (size_t i = 0; i < args.size(); i++) {
543            if (args[i] == String16("-m")) {
544                dumpMem = true;
545            }
546        }
547        if (dumpMem) {
548            dumpMemoryAddresses(fd);
549        }
550    }
551    write(fd, result.string(), result.size());
552    return NO_ERROR;
553}
554
555void MediaPlayerService::removeClient(wp<Client> client)
556{
557    Mutex::Autolock lock(mLock);
558    mClients.remove(client);
559}
560
561MediaPlayerService::Client::Client(
562        const sp<MediaPlayerService>& service, pid_t pid,
563        int32_t connId, const sp<IMediaPlayerClient>& client,
564        int audioSessionId, uid_t uid)
565{
566    ALOGV("Client(%d) constructor", connId);
567    mPid = pid;
568    mConnId = connId;
569    mService = service;
570    mClient = client;
571    mLoop = false;
572    mStatus = NO_INIT;
573    mAudioSessionId = audioSessionId;
574    mUID = uid;
575    mRetransmitEndpointValid = false;
576    mAudioAttributes = NULL;
577
578#if CALLBACK_ANTAGONIZER
579    ALOGD("create Antagonizer");
580    mAntagonizer = new Antagonizer(notify, this);
581#endif
582}
583
584MediaPlayerService::Client::~Client()
585{
586    ALOGV("Client(%d) destructor pid = %d", mConnId, mPid);
587    mAudioOutput.clear();
588    wp<Client> client(this);
589    disconnect();
590    mService->removeClient(client);
591    if (mAudioAttributes != NULL) {
592        free(mAudioAttributes);
593    }
594}
595
596void MediaPlayerService::Client::disconnect()
597{
598    ALOGV("disconnect(%d) from pid %d", mConnId, mPid);
599    // grab local reference and clear main reference to prevent future
600    // access to object
601    sp<MediaPlayerBase> p;
602    {
603        Mutex::Autolock l(mLock);
604        p = mPlayer;
605        mClient.clear();
606    }
607
608    mPlayer.clear();
609
610    // clear the notification to prevent callbacks to dead client
611    // and reset the player. We assume the player will serialize
612    // access to itself if necessary.
613    if (p != 0) {
614        p->setNotifyCallback(0, 0);
615#if CALLBACK_ANTAGONIZER
616        ALOGD("kill Antagonizer");
617        mAntagonizer->kill();
618#endif
619        p->reset();
620    }
621
622    disconnectNativeWindow();
623
624    IPCThreadState::self()->flushCommands();
625}
626
627sp<MediaPlayerBase> MediaPlayerService::Client::createPlayer(player_type playerType)
628{
629    // determine if we have the right player type
630    sp<MediaPlayerBase> p = mPlayer;
631    if ((p != NULL) && (p->playerType() != playerType)) {
632        ALOGV("delete player");
633        p.clear();
634    }
635    if (p == NULL) {
636        p = MediaPlayerFactory::createPlayer(playerType, this, notify);
637    }
638
639    if (p != NULL) {
640        p->setUID(mUID);
641    }
642
643    return p;
644}
645
646sp<MediaPlayerBase> MediaPlayerService::Client::setDataSource_pre(
647        player_type playerType)
648{
649    ALOGV("player type = %d", playerType);
650
651    // create the right type of player
652    sp<MediaPlayerBase> p = createPlayer(playerType);
653    if (p == NULL) {
654        return p;
655    }
656
657    if (!p->hardwareOutput()) {
658        mAudioOutput = new AudioOutput(mAudioSessionId, IPCThreadState::self()->getCallingUid(),
659                mPid, mAudioAttributes);
660        static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput);
661    }
662
663    return p;
664}
665
666void MediaPlayerService::Client::setDataSource_post(
667        const sp<MediaPlayerBase>& p,
668        status_t status)
669{
670    ALOGV(" setDataSource");
671    mStatus = status;
672    if (mStatus != OK) {
673        ALOGE("  error: %d", mStatus);
674        return;
675    }
676
677    // Set the re-transmission endpoint if one was chosen.
678    if (mRetransmitEndpointValid) {
679        mStatus = p->setRetransmitEndpoint(&mRetransmitEndpoint);
680        if (mStatus != NO_ERROR) {
681            ALOGE("setRetransmitEndpoint error: %d", mStatus);
682        }
683    }
684
685    if (mStatus == OK) {
686        mPlayer = p;
687    }
688}
689
690status_t MediaPlayerService::Client::setDataSource(
691        const sp<IMediaHTTPService> &httpService,
692        const char *url,
693        const KeyedVector<String8, String8> *headers)
694{
695    ALOGV("setDataSource(%s)", url);
696    if (url == NULL)
697        return UNKNOWN_ERROR;
698
699    if ((strncmp(url, "http://", 7) == 0) ||
700        (strncmp(url, "https://", 8) == 0) ||
701        (strncmp(url, "rtsp://", 7) == 0)) {
702        if (!checkPermission("android.permission.INTERNET")) {
703            return PERMISSION_DENIED;
704        }
705    }
706
707    if (strncmp(url, "content://", 10) == 0) {
708        // get a filedescriptor for the content Uri and
709        // pass it to the setDataSource(fd) method
710
711        String16 url16(url);
712        int fd = android::openContentProviderFile(url16);
713        if (fd < 0)
714        {
715            ALOGE("Couldn't open fd for %s", url);
716            return UNKNOWN_ERROR;
717        }
718        setDataSource(fd, 0, 0x7fffffffffLL); // this sets mStatus
719        close(fd);
720        return mStatus;
721    } else {
722        player_type playerType = MediaPlayerFactory::getPlayerType(this, url);
723        sp<MediaPlayerBase> p = setDataSource_pre(playerType);
724        if (p == NULL) {
725            return NO_INIT;
726        }
727
728        setDataSource_post(p, p->setDataSource(httpService, url, headers));
729        return mStatus;
730    }
731}
732
733status_t MediaPlayerService::Client::setDataSource(int fd, int64_t offset, int64_t length)
734{
735    ALOGV("setDataSource fd=%d, offset=%lld, length=%lld", fd, offset, length);
736    struct stat sb;
737    int ret = fstat(fd, &sb);
738    if (ret != 0) {
739        ALOGE("fstat(%d) failed: %d, %s", fd, ret, strerror(errno));
740        return UNKNOWN_ERROR;
741    }
742
743    ALOGV("st_dev  = %llu", sb.st_dev);
744    ALOGV("st_mode = %u", sb.st_mode);
745    ALOGV("st_uid  = %lu", static_cast<unsigned long>(sb.st_uid));
746    ALOGV("st_gid  = %lu", static_cast<unsigned long>(sb.st_gid));
747    ALOGV("st_size = %llu", sb.st_size);
748
749    if (offset >= sb.st_size) {
750        ALOGE("offset error");
751        ::close(fd);
752        return UNKNOWN_ERROR;
753    }
754    if (offset + length > sb.st_size) {
755        length = sb.st_size - offset;
756        ALOGV("calculated length = %lld", length);
757    }
758
759    player_type playerType = MediaPlayerFactory::getPlayerType(this,
760                                                               fd,
761                                                               offset,
762                                                               length);
763    sp<MediaPlayerBase> p = setDataSource_pre(playerType);
764    if (p == NULL) {
765        return NO_INIT;
766    }
767
768    // now set data source
769    setDataSource_post(p, p->setDataSource(fd, offset, length));
770    return mStatus;
771}
772
773status_t MediaPlayerService::Client::setDataSource(
774        const sp<IStreamSource> &source) {
775    // create the right type of player
776    player_type playerType = MediaPlayerFactory::getPlayerType(this, source);
777    sp<MediaPlayerBase> p = setDataSource_pre(playerType);
778    if (p == NULL) {
779        return NO_INIT;
780    }
781
782    // now set data source
783    setDataSource_post(p, p->setDataSource(source));
784    return mStatus;
785}
786
787void MediaPlayerService::Client::disconnectNativeWindow() {
788    if (mConnectedWindow != NULL) {
789        status_t err = native_window_api_disconnect(mConnectedWindow.get(),
790                NATIVE_WINDOW_API_MEDIA);
791
792        if (err != OK) {
793            ALOGW("native_window_api_disconnect returned an error: %s (%d)",
794                    strerror(-err), err);
795        }
796    }
797    mConnectedWindow.clear();
798}
799
800status_t MediaPlayerService::Client::setVideoSurfaceTexture(
801        const sp<IGraphicBufferProducer>& bufferProducer)
802{
803    ALOGV("[%d] setVideoSurfaceTexture(%p)", mConnId, bufferProducer.get());
804    sp<MediaPlayerBase> p = getPlayer();
805    if (p == 0) return UNKNOWN_ERROR;
806
807    sp<IBinder> binder(IInterface::asBinder(bufferProducer));
808    if (mConnectedWindowBinder == binder) {
809        return OK;
810    }
811
812    sp<ANativeWindow> anw;
813    if (bufferProducer != NULL) {
814        anw = new Surface(bufferProducer, true /* controlledByApp */);
815        status_t err = native_window_api_connect(anw.get(),
816                NATIVE_WINDOW_API_MEDIA);
817
818        if (err != OK) {
819            ALOGE("setVideoSurfaceTexture failed: %d", err);
820            // Note that we must do the reset before disconnecting from the ANW.
821            // Otherwise queue/dequeue calls could be made on the disconnected
822            // ANW, which may result in errors.
823            reset();
824
825            disconnectNativeWindow();
826
827            return err;
828        }
829    }
830
831    // Note that we must set the player's new GraphicBufferProducer before
832    // disconnecting the old one.  Otherwise queue/dequeue calls could be made
833    // on the disconnected ANW, which may result in errors.
834    status_t err = p->setVideoSurfaceTexture(bufferProducer);
835
836    disconnectNativeWindow();
837
838    mConnectedWindow = anw;
839
840    if (err == OK) {
841        mConnectedWindowBinder = binder;
842    } else {
843        disconnectNativeWindow();
844    }
845
846    return err;
847}
848
849status_t MediaPlayerService::Client::invoke(const Parcel& request,
850                                            Parcel *reply)
851{
852    sp<MediaPlayerBase> p = getPlayer();
853    if (p == NULL) return UNKNOWN_ERROR;
854    return p->invoke(request, reply);
855}
856
857// This call doesn't need to access the native player.
858status_t MediaPlayerService::Client::setMetadataFilter(const Parcel& filter)
859{
860    status_t status;
861    media::Metadata::Filter allow, drop;
862
863    if (unmarshallFilter(filter, &allow, &status) &&
864        unmarshallFilter(filter, &drop, &status)) {
865        Mutex::Autolock lock(mLock);
866
867        mMetadataAllow = allow;
868        mMetadataDrop = drop;
869    }
870    return status;
871}
872
873status_t MediaPlayerService::Client::getMetadata(
874        bool update_only, bool /*apply_filter*/, Parcel *reply)
875{
876    sp<MediaPlayerBase> player = getPlayer();
877    if (player == 0) return UNKNOWN_ERROR;
878
879    status_t status;
880    // Placeholder for the return code, updated by the caller.
881    reply->writeInt32(-1);
882
883    media::Metadata::Filter ids;
884
885    // We don't block notifications while we fetch the data. We clear
886    // mMetadataUpdated first so we don't lose notifications happening
887    // during the rest of this call.
888    {
889        Mutex::Autolock lock(mLock);
890        if (update_only) {
891            ids = mMetadataUpdated;
892        }
893        mMetadataUpdated.clear();
894    }
895
896    media::Metadata metadata(reply);
897
898    metadata.appendHeader();
899    status = player->getMetadata(ids, reply);
900
901    if (status != OK) {
902        metadata.resetParcel();
903        ALOGE("getMetadata failed %d", status);
904        return status;
905    }
906
907    // FIXME: Implement filtering on the result. Not critical since
908    // filtering takes place on the update notifications already. This
909    // would be when all the metadata are fetch and a filter is set.
910
911    // Everything is fine, update the metadata length.
912    metadata.updateLength();
913    return OK;
914}
915
916status_t MediaPlayerService::Client::prepareAsync()
917{
918    ALOGV("[%d] prepareAsync", mConnId);
919    sp<MediaPlayerBase> p = getPlayer();
920    if (p == 0) return UNKNOWN_ERROR;
921    status_t ret = p->prepareAsync();
922#if CALLBACK_ANTAGONIZER
923    ALOGD("start Antagonizer");
924    if (ret == NO_ERROR) mAntagonizer->start();
925#endif
926    return ret;
927}
928
929status_t MediaPlayerService::Client::start()
930{
931    ALOGV("[%d] start", mConnId);
932    sp<MediaPlayerBase> p = getPlayer();
933    if (p == 0) return UNKNOWN_ERROR;
934    p->setLooping(mLoop);
935    return p->start();
936}
937
938status_t MediaPlayerService::Client::stop()
939{
940    ALOGV("[%d] stop", mConnId);
941    sp<MediaPlayerBase> p = getPlayer();
942    if (p == 0) return UNKNOWN_ERROR;
943    return p->stop();
944}
945
946status_t MediaPlayerService::Client::pause()
947{
948    ALOGV("[%d] pause", mConnId);
949    sp<MediaPlayerBase> p = getPlayer();
950    if (p == 0) return UNKNOWN_ERROR;
951    return p->pause();
952}
953
954status_t MediaPlayerService::Client::isPlaying(bool* state)
955{
956    *state = false;
957    sp<MediaPlayerBase> p = getPlayer();
958    if (p == 0) return UNKNOWN_ERROR;
959    *state = p->isPlaying();
960    ALOGV("[%d] isPlaying: %d", mConnId, *state);
961    return NO_ERROR;
962}
963
964status_t MediaPlayerService::Client::setPlaybackRate(float rate)
965{
966    ALOGV("[%d] setPlaybackRate(%f)", mConnId, rate);
967    sp<MediaPlayerBase> p = getPlayer();
968    if (p == 0) return UNKNOWN_ERROR;
969    return p->setPlaybackRate(rate);
970}
971
972status_t MediaPlayerService::Client::getCurrentPosition(int *msec)
973{
974    ALOGV("getCurrentPosition");
975    sp<MediaPlayerBase> p = getPlayer();
976    if (p == 0) return UNKNOWN_ERROR;
977    status_t ret = p->getCurrentPosition(msec);
978    if (ret == NO_ERROR) {
979        ALOGV("[%d] getCurrentPosition = %d", mConnId, *msec);
980    } else {
981        ALOGE("getCurrentPosition returned %d", ret);
982    }
983    return ret;
984}
985
986status_t MediaPlayerService::Client::getDuration(int *msec)
987{
988    ALOGV("getDuration");
989    sp<MediaPlayerBase> p = getPlayer();
990    if (p == 0) return UNKNOWN_ERROR;
991    status_t ret = p->getDuration(msec);
992    if (ret == NO_ERROR) {
993        ALOGV("[%d] getDuration = %d", mConnId, *msec);
994    } else {
995        ALOGE("getDuration returned %d", ret);
996    }
997    return ret;
998}
999
1000status_t MediaPlayerService::Client::setNextPlayer(const sp<IMediaPlayer>& player) {
1001    ALOGV("setNextPlayer");
1002    Mutex::Autolock l(mLock);
1003    sp<Client> c = static_cast<Client*>(player.get());
1004    mNextClient = c;
1005
1006    if (c != NULL) {
1007        if (mAudioOutput != NULL) {
1008            mAudioOutput->setNextOutput(c->mAudioOutput);
1009        } else if ((mPlayer != NULL) && !mPlayer->hardwareOutput()) {
1010            ALOGE("no current audio output");
1011        }
1012
1013        if ((mPlayer != NULL) && (mNextClient->getPlayer() != NULL)) {
1014            mPlayer->setNextPlayer(mNextClient->getPlayer());
1015        }
1016    }
1017
1018    return OK;
1019}
1020
1021status_t MediaPlayerService::Client::seekTo(int msec)
1022{
1023    ALOGV("[%d] seekTo(%d)", mConnId, msec);
1024    sp<MediaPlayerBase> p = getPlayer();
1025    if (p == 0) return UNKNOWN_ERROR;
1026    return p->seekTo(msec);
1027}
1028
1029status_t MediaPlayerService::Client::reset()
1030{
1031    ALOGV("[%d] reset", mConnId);
1032    mRetransmitEndpointValid = false;
1033    sp<MediaPlayerBase> p = getPlayer();
1034    if (p == 0) return UNKNOWN_ERROR;
1035    return p->reset();
1036}
1037
1038status_t MediaPlayerService::Client::setAudioStreamType(audio_stream_type_t type)
1039{
1040    ALOGV("[%d] setAudioStreamType(%d)", mConnId, type);
1041    // TODO: for hardware output, call player instead
1042    Mutex::Autolock l(mLock);
1043    if (mAudioOutput != 0) mAudioOutput->setAudioStreamType(type);
1044    return NO_ERROR;
1045}
1046
1047status_t MediaPlayerService::Client::setAudioAttributes_l(const Parcel &parcel)
1048{
1049    if (mAudioAttributes != NULL) { free(mAudioAttributes); }
1050    mAudioAttributes = (audio_attributes_t *) calloc(1, sizeof(audio_attributes_t));
1051    unmarshallAudioAttributes(parcel, mAudioAttributes);
1052
1053    ALOGV("setAudioAttributes_l() usage=%d content=%d flags=0x%x tags=%s",
1054            mAudioAttributes->usage, mAudioAttributes->content_type, mAudioAttributes->flags,
1055            mAudioAttributes->tags);
1056
1057    if (mAudioOutput != 0) {
1058        mAudioOutput->setAudioAttributes(mAudioAttributes);
1059    }
1060    return NO_ERROR;
1061}
1062
1063status_t MediaPlayerService::Client::setLooping(int loop)
1064{
1065    ALOGV("[%d] setLooping(%d)", mConnId, loop);
1066    mLoop = loop;
1067    sp<MediaPlayerBase> p = getPlayer();
1068    if (p != 0) return p->setLooping(loop);
1069    return NO_ERROR;
1070}
1071
1072status_t MediaPlayerService::Client::setVolume(float leftVolume, float rightVolume)
1073{
1074    ALOGV("[%d] setVolume(%f, %f)", mConnId, leftVolume, rightVolume);
1075
1076    // for hardware output, call player instead
1077    sp<MediaPlayerBase> p = getPlayer();
1078    {
1079      Mutex::Autolock l(mLock);
1080      if (p != 0 && p->hardwareOutput()) {
1081          MediaPlayerHWInterface* hwp =
1082                  reinterpret_cast<MediaPlayerHWInterface*>(p.get());
1083          return hwp->setVolume(leftVolume, rightVolume);
1084      } else {
1085          if (mAudioOutput != 0) mAudioOutput->setVolume(leftVolume, rightVolume);
1086          return NO_ERROR;
1087      }
1088    }
1089
1090    return NO_ERROR;
1091}
1092
1093status_t MediaPlayerService::Client::setAuxEffectSendLevel(float level)
1094{
1095    ALOGV("[%d] setAuxEffectSendLevel(%f)", mConnId, level);
1096    Mutex::Autolock l(mLock);
1097    if (mAudioOutput != 0) return mAudioOutput->setAuxEffectSendLevel(level);
1098    return NO_ERROR;
1099}
1100
1101status_t MediaPlayerService::Client::attachAuxEffect(int effectId)
1102{
1103    ALOGV("[%d] attachAuxEffect(%d)", mConnId, effectId);
1104    Mutex::Autolock l(mLock);
1105    if (mAudioOutput != 0) return mAudioOutput->attachAuxEffect(effectId);
1106    return NO_ERROR;
1107}
1108
1109status_t MediaPlayerService::Client::setParameter(int key, const Parcel &request) {
1110    ALOGV("[%d] setParameter(%d)", mConnId, key);
1111    switch (key) {
1112    case KEY_PARAMETER_AUDIO_ATTRIBUTES:
1113    {
1114        Mutex::Autolock l(mLock);
1115        return setAudioAttributes_l(request);
1116    }
1117    default:
1118        sp<MediaPlayerBase> p = getPlayer();
1119        if (p == 0) { return UNKNOWN_ERROR; }
1120        return p->setParameter(key, request);
1121    }
1122}
1123
1124status_t MediaPlayerService::Client::getParameter(int key, Parcel *reply) {
1125    ALOGV("[%d] getParameter(%d)", mConnId, key);
1126    sp<MediaPlayerBase> p = getPlayer();
1127    if (p == 0) return UNKNOWN_ERROR;
1128    return p->getParameter(key, reply);
1129}
1130
1131status_t MediaPlayerService::Client::setRetransmitEndpoint(
1132        const struct sockaddr_in* endpoint) {
1133
1134    if (NULL != endpoint) {
1135        uint32_t a = ntohl(endpoint->sin_addr.s_addr);
1136        uint16_t p = ntohs(endpoint->sin_port);
1137        ALOGV("[%d] setRetransmitEndpoint(%u.%u.%u.%u:%hu)", mConnId,
1138                (a >> 24), (a >> 16) & 0xFF, (a >> 8) & 0xFF, (a & 0xFF), p);
1139    } else {
1140        ALOGV("[%d] setRetransmitEndpoint = <none>", mConnId);
1141    }
1142
1143    sp<MediaPlayerBase> p = getPlayer();
1144
1145    // Right now, the only valid time to set a retransmit endpoint is before
1146    // player selection has been made (since the presence or absence of a
1147    // retransmit endpoint is going to determine which player is selected during
1148    // setDataSource).
1149    if (p != 0) return INVALID_OPERATION;
1150
1151    if (NULL != endpoint) {
1152        mRetransmitEndpoint = *endpoint;
1153        mRetransmitEndpointValid = true;
1154    } else {
1155        mRetransmitEndpointValid = false;
1156    }
1157
1158    return NO_ERROR;
1159}
1160
1161status_t MediaPlayerService::Client::getRetransmitEndpoint(
1162        struct sockaddr_in* endpoint)
1163{
1164    if (NULL == endpoint)
1165        return BAD_VALUE;
1166
1167    sp<MediaPlayerBase> p = getPlayer();
1168
1169    if (p != NULL)
1170        return p->getRetransmitEndpoint(endpoint);
1171
1172    if (!mRetransmitEndpointValid)
1173        return NO_INIT;
1174
1175    *endpoint = mRetransmitEndpoint;
1176
1177    return NO_ERROR;
1178}
1179
1180void MediaPlayerService::Client::notify(
1181        void* cookie, int msg, int ext1, int ext2, const Parcel *obj)
1182{
1183    Client* client = static_cast<Client*>(cookie);
1184    if (client == NULL) {
1185        return;
1186    }
1187
1188    sp<IMediaPlayerClient> c;
1189    {
1190        Mutex::Autolock l(client->mLock);
1191        c = client->mClient;
1192        if (msg == MEDIA_PLAYBACK_COMPLETE && client->mNextClient != NULL) {
1193            if (client->mAudioOutput != NULL)
1194                client->mAudioOutput->switchToNextOutput();
1195            client->mNextClient->start();
1196            client->mNextClient->mClient->notify(MEDIA_INFO, MEDIA_INFO_STARTED_AS_NEXT, 0, obj);
1197        }
1198    }
1199
1200    if (MEDIA_INFO == msg &&
1201        MEDIA_INFO_METADATA_UPDATE == ext1) {
1202        const media::Metadata::Type metadata_type = ext2;
1203
1204        if(client->shouldDropMetadata(metadata_type)) {
1205            return;
1206        }
1207
1208        // Update the list of metadata that have changed. getMetadata
1209        // also access mMetadataUpdated and clears it.
1210        client->addNewMetadataUpdate(metadata_type);
1211    }
1212
1213    if (c != NULL) {
1214        ALOGV("[%d] notify (%p, %d, %d, %d)", client->mConnId, cookie, msg, ext1, ext2);
1215        c->notify(msg, ext1, ext2, obj);
1216    }
1217}
1218
1219
1220bool MediaPlayerService::Client::shouldDropMetadata(media::Metadata::Type code) const
1221{
1222    Mutex::Autolock lock(mLock);
1223
1224    if (findMetadata(mMetadataDrop, code)) {
1225        return true;
1226    }
1227
1228    if (mMetadataAllow.isEmpty() || findMetadata(mMetadataAllow, code)) {
1229        return false;
1230    } else {
1231        return true;
1232    }
1233}
1234
1235
1236void MediaPlayerService::Client::addNewMetadataUpdate(media::Metadata::Type metadata_type) {
1237    Mutex::Autolock lock(mLock);
1238    if (mMetadataUpdated.indexOf(metadata_type) < 0) {
1239        mMetadataUpdated.add(metadata_type);
1240    }
1241}
1242
1243#if CALLBACK_ANTAGONIZER
1244const int Antagonizer::interval = 10000; // 10 msecs
1245
1246Antagonizer::Antagonizer(notify_callback_f cb, void* client) :
1247    mExit(false), mActive(false), mClient(client), mCb(cb)
1248{
1249    createThread(callbackThread, this);
1250}
1251
1252void Antagonizer::kill()
1253{
1254    Mutex::Autolock _l(mLock);
1255    mActive = false;
1256    mExit = true;
1257    mCondition.wait(mLock);
1258}
1259
1260int Antagonizer::callbackThread(void* user)
1261{
1262    ALOGD("Antagonizer started");
1263    Antagonizer* p = reinterpret_cast<Antagonizer*>(user);
1264    while (!p->mExit) {
1265        if (p->mActive) {
1266            ALOGV("send event");
1267            p->mCb(p->mClient, 0, 0, 0);
1268        }
1269        usleep(interval);
1270    }
1271    Mutex::Autolock _l(p->mLock);
1272    p->mCondition.signal();
1273    ALOGD("Antagonizer stopped");
1274    return 0;
1275}
1276#endif
1277
1278#undef LOG_TAG
1279#define LOG_TAG "AudioSink"
1280MediaPlayerService::AudioOutput::AudioOutput(int sessionId, int uid, int pid,
1281        const audio_attributes_t* attr)
1282    : mCallback(NULL),
1283      mCallbackCookie(NULL),
1284      mCallbackData(NULL),
1285      mBytesWritten(0),
1286      mSessionId(sessionId),
1287      mUid(uid),
1288      mPid(pid),
1289      mFlags(AUDIO_OUTPUT_FLAG_NONE) {
1290    ALOGV("AudioOutput(%d)", sessionId);
1291    mStreamType = AUDIO_STREAM_MUSIC;
1292    mLeftVolume = 1.0;
1293    mRightVolume = 1.0;
1294    mPlaybackRatePermille = 1000;
1295    mSampleRateHz = 0;
1296    mMsecsPerFrame = 0;
1297    mAuxEffectId = 0;
1298    mSendLevel = 0.0;
1299    setMinBufferCount();
1300    mAttributes = attr;
1301}
1302
1303MediaPlayerService::AudioOutput::~AudioOutput()
1304{
1305    close();
1306    delete mCallbackData;
1307}
1308
1309void MediaPlayerService::AudioOutput::setMinBufferCount()
1310{
1311    char value[PROPERTY_VALUE_MAX];
1312    if (property_get("ro.kernel.qemu", value, 0)) {
1313        mIsOnEmulator = true;
1314        mMinBufferCount = 12;  // to prevent systematic buffer underrun for emulator
1315    }
1316}
1317
1318bool MediaPlayerService::AudioOutput::isOnEmulator()
1319{
1320    setMinBufferCount();
1321    return mIsOnEmulator;
1322}
1323
1324int MediaPlayerService::AudioOutput::getMinBufferCount()
1325{
1326    setMinBufferCount();
1327    return mMinBufferCount;
1328}
1329
1330ssize_t MediaPlayerService::AudioOutput::bufferSize() const
1331{
1332    if (mTrack == 0) return NO_INIT;
1333    return mTrack->frameCount() * frameSize();
1334}
1335
1336ssize_t MediaPlayerService::AudioOutput::frameCount() const
1337{
1338    if (mTrack == 0) return NO_INIT;
1339    return mTrack->frameCount();
1340}
1341
1342ssize_t MediaPlayerService::AudioOutput::channelCount() const
1343{
1344    if (mTrack == 0) return NO_INIT;
1345    return mTrack->channelCount();
1346}
1347
1348ssize_t MediaPlayerService::AudioOutput::frameSize() const
1349{
1350    if (mTrack == 0) return NO_INIT;
1351    return mTrack->frameSize();
1352}
1353
1354uint32_t MediaPlayerService::AudioOutput::latency () const
1355{
1356    if (mTrack == 0) return 0;
1357    return mTrack->latency();
1358}
1359
1360float MediaPlayerService::AudioOutput::msecsPerFrame() const
1361{
1362    return mMsecsPerFrame;
1363}
1364
1365status_t MediaPlayerService::AudioOutput::getPosition(uint32_t *position) const
1366{
1367    if (mTrack == 0) return NO_INIT;
1368    return mTrack->getPosition(position);
1369}
1370
1371status_t MediaPlayerService::AudioOutput::getTimestamp(AudioTimestamp &ts) const
1372{
1373    if (mTrack == 0) return NO_INIT;
1374    return mTrack->getTimestamp(ts);
1375}
1376
1377status_t MediaPlayerService::AudioOutput::getFramesWritten(uint32_t *frameswritten) const
1378{
1379    if (mTrack == 0) return NO_INIT;
1380    *frameswritten = mBytesWritten / frameSize();
1381    return OK;
1382}
1383
1384status_t MediaPlayerService::AudioOutput::setParameters(const String8& keyValuePairs)
1385{
1386    if (mTrack == 0) return NO_INIT;
1387    return mTrack->setParameters(keyValuePairs);
1388}
1389
1390String8  MediaPlayerService::AudioOutput::getParameters(const String8& keys)
1391{
1392    if (mTrack == 0) return String8::empty();
1393    return mTrack->getParameters(keys);
1394}
1395
1396void MediaPlayerService::AudioOutput::setAudioAttributes(const audio_attributes_t * attributes) {
1397    mAttributes = attributes;
1398}
1399
1400void MediaPlayerService::AudioOutput::deleteRecycledTrack()
1401{
1402    ALOGV("deleteRecycledTrack");
1403
1404    if (mRecycledTrack != 0) {
1405
1406        if (mCallbackData != NULL) {
1407            mCallbackData->setOutput(NULL);
1408            mCallbackData->endTrackSwitch();
1409        }
1410
1411        if ((mRecycledTrack->getFlags() & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) == 0) {
1412            mRecycledTrack->flush();
1413        }
1414        // An offloaded track isn't flushed because the STREAM_END is reported
1415        // slightly prematurely to allow time for the gapless track switch
1416        // but this means that if we decide not to recycle the track there
1417        // could be a small amount of residual data still playing. We leave
1418        // AudioFlinger to drain the track.
1419
1420        mRecycledTrack.clear();
1421        delete mCallbackData;
1422        mCallbackData = NULL;
1423        close();
1424    }
1425}
1426
1427status_t MediaPlayerService::AudioOutput::open(
1428        uint32_t sampleRate, int channelCount, audio_channel_mask_t channelMask,
1429        audio_format_t format, int bufferCount,
1430        AudioCallback cb, void *cookie,
1431        audio_output_flags_t flags,
1432        const audio_offload_info_t *offloadInfo)
1433{
1434    mCallback = cb;
1435    mCallbackCookie = cookie;
1436
1437    // Check argument "bufferCount" against the mininum buffer count
1438    if (bufferCount < mMinBufferCount) {
1439        ALOGD("bufferCount (%d) is too small and increased to %d", bufferCount, mMinBufferCount);
1440        bufferCount = mMinBufferCount;
1441
1442    }
1443    ALOGV("open(%u, %d, 0x%x, 0x%x, %d, %d 0x%x)", sampleRate, channelCount, channelMask,
1444                format, bufferCount, mSessionId, flags);
1445    uint32_t afSampleRate;
1446    size_t afFrameCount;
1447    size_t frameCount;
1448
1449    // offloading is only supported in callback mode for now.
1450    // offloadInfo must be present if offload flag is set
1451    if (((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) &&
1452            ((cb == NULL) || (offloadInfo == NULL))) {
1453        return BAD_VALUE;
1454    }
1455
1456    if ((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) {
1457        frameCount = 0; // AudioTrack will get frame count from AudioFlinger
1458    } else {
1459        uint32_t afSampleRate;
1460        size_t afFrameCount;
1461
1462        if (AudioSystem::getOutputFrameCount(&afFrameCount, mStreamType) != NO_ERROR) {
1463            return NO_INIT;
1464        }
1465        if (AudioSystem::getOutputSamplingRate(&afSampleRate, mStreamType) != NO_ERROR) {
1466            return NO_INIT;
1467        }
1468
1469        frameCount = (sampleRate*afFrameCount*bufferCount)/afSampleRate;
1470    }
1471
1472    if (channelMask == CHANNEL_MASK_USE_CHANNEL_ORDER) {
1473        channelMask = audio_channel_out_mask_from_count(channelCount);
1474        if (0 == channelMask) {
1475            ALOGE("open() error, can\'t derive mask for %d audio channels", channelCount);
1476            return NO_INIT;
1477        }
1478    }
1479
1480    // Check whether we can recycle the track
1481    bool reuse = false;
1482    bool bothOffloaded = false;
1483
1484    if (mRecycledTrack != 0) {
1485        // check whether we are switching between two offloaded tracks
1486        bothOffloaded = (flags & mRecycledTrack->getFlags()
1487                                & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0;
1488
1489        // check if the existing track can be reused as-is, or if a new track needs to be created.
1490        reuse = true;
1491
1492        if ((mCallbackData == NULL && mCallback != NULL) ||
1493                (mCallbackData != NULL && mCallback == NULL)) {
1494            // recycled track uses callbacks but the caller wants to use writes, or vice versa
1495            ALOGV("can't chain callback and write");
1496            reuse = false;
1497        } else if ((mRecycledTrack->getSampleRate() != sampleRate) ||
1498                (mRecycledTrack->channelCount() != (uint32_t)channelCount) ) {
1499            ALOGV("samplerate, channelcount differ: %u/%u Hz, %u/%d ch",
1500                  mRecycledTrack->getSampleRate(), sampleRate,
1501                  mRecycledTrack->channelCount(), channelCount);
1502            reuse = false;
1503        } else if (flags != mFlags) {
1504            ALOGV("output flags differ %08x/%08x", flags, mFlags);
1505            reuse = false;
1506        } else if (mRecycledTrack->format() != format) {
1507            reuse = false;
1508        }
1509    } else {
1510        ALOGV("no track available to recycle");
1511    }
1512
1513    ALOGV_IF(bothOffloaded, "both tracks offloaded");
1514
1515    // If we can't recycle and both tracks are offloaded
1516    // we must close the previous output before opening a new one
1517    if (bothOffloaded && !reuse) {
1518        ALOGV("both offloaded and not recycling");
1519        deleteRecycledTrack();
1520    }
1521
1522    sp<AudioTrack> t;
1523    CallbackData *newcbd = NULL;
1524
1525    // We don't attempt to create a new track if we are recycling an
1526    // offloaded track. But, if we are recycling a non-offloaded or we
1527    // are switching where one is offloaded and one isn't then we create
1528    // the new track in advance so that we can read additional stream info
1529
1530    if (!(reuse && bothOffloaded)) {
1531        ALOGV("creating new AudioTrack");
1532
1533        if (mCallback != NULL) {
1534            newcbd = new CallbackData(this);
1535            t = new AudioTrack(
1536                    mStreamType,
1537                    sampleRate,
1538                    format,
1539                    channelMask,
1540                    frameCount,
1541                    flags,
1542                    CallbackWrapper,
1543                    newcbd,
1544                    0,  // notification frames
1545                    mSessionId,
1546                    AudioTrack::TRANSFER_CALLBACK,
1547                    offloadInfo,
1548                    mUid,
1549                    mPid,
1550                    mAttributes);
1551        } else {
1552            t = new AudioTrack(
1553                    mStreamType,
1554                    sampleRate,
1555                    format,
1556                    channelMask,
1557                    frameCount,
1558                    flags,
1559                    NULL, // callback
1560                    NULL, // user data
1561                    0, // notification frames
1562                    mSessionId,
1563                    AudioTrack::TRANSFER_DEFAULT,
1564                    NULL, // offload info
1565                    mUid,
1566                    mPid,
1567                    mAttributes);
1568        }
1569
1570        if ((t == 0) || (t->initCheck() != NO_ERROR)) {
1571            ALOGE("Unable to create audio track");
1572            delete newcbd;
1573            return NO_INIT;
1574        } else {
1575            // successful AudioTrack initialization implies a legacy stream type was generated
1576            // from the audio attributes
1577            mStreamType = t->streamType();
1578        }
1579    }
1580
1581    if (reuse) {
1582        CHECK(mRecycledTrack != NULL);
1583
1584        if (!bothOffloaded) {
1585            if (mRecycledTrack->frameCount() != t->frameCount()) {
1586                ALOGV("framecount differs: %u/%u frames",
1587                      mRecycledTrack->frameCount(), t->frameCount());
1588                reuse = false;
1589            }
1590        }
1591
1592        if (reuse) {
1593            ALOGV("chaining to next output and recycling track");
1594            close();
1595            mTrack = mRecycledTrack;
1596            mRecycledTrack.clear();
1597            if (mCallbackData != NULL) {
1598                mCallbackData->setOutput(this);
1599            }
1600            delete newcbd;
1601            return OK;
1602        }
1603    }
1604
1605    // we're not going to reuse the track, unblock and flush it
1606    // this was done earlier if both tracks are offloaded
1607    if (!bothOffloaded) {
1608        deleteRecycledTrack();
1609    }
1610
1611    CHECK((t != NULL) && ((mCallback == NULL) || (newcbd != NULL)));
1612
1613    mCallbackData = newcbd;
1614    ALOGV("setVolume");
1615    t->setVolume(mLeftVolume, mRightVolume);
1616
1617    mSampleRateHz = sampleRate;
1618    mFlags = flags;
1619    mMsecsPerFrame = mPlaybackRatePermille / (float) sampleRate;
1620    uint32_t pos;
1621    if (t->getPosition(&pos) == OK) {
1622        mBytesWritten = uint64_t(pos) * t->frameSize();
1623    }
1624    mTrack = t;
1625
1626    status_t res = NO_ERROR;
1627    if ((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) == 0) {
1628        res = t->setSampleRate(mPlaybackRatePermille * mSampleRateHz / 1000);
1629        if (res == NO_ERROR) {
1630            t->setAuxEffectSendLevel(mSendLevel);
1631            res = t->attachAuxEffect(mAuxEffectId);
1632        }
1633    }
1634    ALOGV("open() DONE status %d", res);
1635    return res;
1636}
1637
1638status_t MediaPlayerService::AudioOutput::start()
1639{
1640    ALOGV("start");
1641    if (mCallbackData != NULL) {
1642        mCallbackData->endTrackSwitch();
1643    }
1644    if (mTrack != 0) {
1645        mTrack->setVolume(mLeftVolume, mRightVolume);
1646        mTrack->setAuxEffectSendLevel(mSendLevel);
1647        return mTrack->start();
1648    }
1649    return NO_INIT;
1650}
1651
1652void MediaPlayerService::AudioOutput::setNextOutput(const sp<AudioOutput>& nextOutput) {
1653    mNextOutput = nextOutput;
1654}
1655
1656
1657void MediaPlayerService::AudioOutput::switchToNextOutput() {
1658    ALOGV("switchToNextOutput");
1659    if (mNextOutput != NULL) {
1660        if (mCallbackData != NULL) {
1661            mCallbackData->beginTrackSwitch();
1662        }
1663        delete mNextOutput->mCallbackData;
1664        mNextOutput->mCallbackData = mCallbackData;
1665        mCallbackData = NULL;
1666        mNextOutput->mRecycledTrack = mTrack;
1667        mTrack.clear();
1668        mNextOutput->mSampleRateHz = mSampleRateHz;
1669        mNextOutput->mMsecsPerFrame = mMsecsPerFrame;
1670        mNextOutput->mBytesWritten = mBytesWritten;
1671        mNextOutput->mFlags = mFlags;
1672    }
1673}
1674
1675ssize_t MediaPlayerService::AudioOutput::write(const void* buffer, size_t size)
1676{
1677    LOG_ALWAYS_FATAL_IF(mCallback != NULL, "Don't call write if supplying a callback.");
1678
1679    //ALOGV("write(%p, %u)", buffer, size);
1680    if (mTrack != 0) {
1681        ssize_t ret = mTrack->write(buffer, size);
1682        if (ret >= 0) {
1683            mBytesWritten += ret;
1684        }
1685        return ret;
1686    }
1687    return NO_INIT;
1688}
1689
1690void MediaPlayerService::AudioOutput::stop()
1691{
1692    ALOGV("stop");
1693    if (mTrack != 0) mTrack->stop();
1694}
1695
1696void MediaPlayerService::AudioOutput::flush()
1697{
1698    ALOGV("flush");
1699    if (mTrack != 0) mTrack->flush();
1700}
1701
1702void MediaPlayerService::AudioOutput::pause()
1703{
1704    ALOGV("pause");
1705    if (mTrack != 0) mTrack->pause();
1706}
1707
1708void MediaPlayerService::AudioOutput::close()
1709{
1710    ALOGV("close");
1711    mTrack.clear();
1712}
1713
1714void MediaPlayerService::AudioOutput::setVolume(float left, float right)
1715{
1716    ALOGV("setVolume(%f, %f)", left, right);
1717    mLeftVolume = left;
1718    mRightVolume = right;
1719    if (mTrack != 0) {
1720        mTrack->setVolume(left, right);
1721    }
1722}
1723
1724status_t MediaPlayerService::AudioOutput::setPlaybackRatePermille(int32_t ratePermille)
1725{
1726    ALOGV("setPlaybackRatePermille(%d)", ratePermille);
1727    status_t res = NO_ERROR;
1728    if (mTrack != 0) {
1729        res = mTrack->setSampleRate(ratePermille * mSampleRateHz / 1000);
1730    } else {
1731        res = NO_INIT;
1732    }
1733    mPlaybackRatePermille = ratePermille;
1734    if (mSampleRateHz != 0) {
1735        mMsecsPerFrame = mPlaybackRatePermille / (float) mSampleRateHz;
1736    }
1737    return res;
1738}
1739
1740status_t MediaPlayerService::AudioOutput::setAuxEffectSendLevel(float level)
1741{
1742    ALOGV("setAuxEffectSendLevel(%f)", level);
1743    mSendLevel = level;
1744    if (mTrack != 0) {
1745        return mTrack->setAuxEffectSendLevel(level);
1746    }
1747    return NO_ERROR;
1748}
1749
1750status_t MediaPlayerService::AudioOutput::attachAuxEffect(int effectId)
1751{
1752    ALOGV("attachAuxEffect(%d)", effectId);
1753    mAuxEffectId = effectId;
1754    if (mTrack != 0) {
1755        return mTrack->attachAuxEffect(effectId);
1756    }
1757    return NO_ERROR;
1758}
1759
1760// static
1761void MediaPlayerService::AudioOutput::CallbackWrapper(
1762        int event, void *cookie, void *info) {
1763    //ALOGV("callbackwrapper");
1764    CallbackData *data = (CallbackData*)cookie;
1765    data->lock();
1766    AudioOutput *me = data->getOutput();
1767    AudioTrack::Buffer *buffer = (AudioTrack::Buffer *)info;
1768    if (me == NULL) {
1769        // no output set, likely because the track was scheduled to be reused
1770        // by another player, but the format turned out to be incompatible.
1771        data->unlock();
1772        if (buffer != NULL) {
1773            buffer->size = 0;
1774        }
1775        return;
1776    }
1777
1778    switch(event) {
1779    case AudioTrack::EVENT_MORE_DATA: {
1780        size_t actualSize = (*me->mCallback)(
1781                me, buffer->raw, buffer->size, me->mCallbackCookie,
1782                CB_EVENT_FILL_BUFFER);
1783
1784        if ((me->mFlags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) == 0 &&
1785            actualSize == 0 && buffer->size > 0 && me->mNextOutput == NULL) {
1786            // We've reached EOS but the audio track is not stopped yet,
1787            // keep playing silence.
1788
1789            memset(buffer->raw, 0, buffer->size);
1790            actualSize = buffer->size;
1791        }
1792
1793        buffer->size = actualSize;
1794        } break;
1795
1796
1797    case AudioTrack::EVENT_STREAM_END:
1798        ALOGV("callbackwrapper: deliver EVENT_STREAM_END");
1799        (*me->mCallback)(me, NULL /* buffer */, 0 /* size */,
1800                me->mCallbackCookie, CB_EVENT_STREAM_END);
1801        break;
1802
1803    case AudioTrack::EVENT_NEW_IAUDIOTRACK :
1804        ALOGV("callbackwrapper: deliver EVENT_TEAR_DOWN");
1805        (*me->mCallback)(me,  NULL /* buffer */, 0 /* size */,
1806                me->mCallbackCookie, CB_EVENT_TEAR_DOWN);
1807        break;
1808
1809    default:
1810        ALOGE("received unknown event type: %d inside CallbackWrapper !", event);
1811    }
1812
1813    data->unlock();
1814}
1815
1816int MediaPlayerService::AudioOutput::getSessionId() const
1817{
1818    return mSessionId;
1819}
1820
1821uint32_t MediaPlayerService::AudioOutput::getSampleRate() const
1822{
1823    if (mTrack == 0) return 0;
1824    return mTrack->getSampleRate();
1825}
1826
1827////////////////////////////////////////////////////////////////////////////////
1828
1829struct CallbackThread : public Thread {
1830    CallbackThread(const wp<MediaPlayerBase::AudioSink> &sink,
1831                   MediaPlayerBase::AudioSink::AudioCallback cb,
1832                   void *cookie);
1833
1834protected:
1835    virtual ~CallbackThread();
1836
1837    virtual bool threadLoop();
1838
1839private:
1840    wp<MediaPlayerBase::AudioSink> mSink;
1841    MediaPlayerBase::AudioSink::AudioCallback mCallback;
1842    void *mCookie;
1843    void *mBuffer;
1844    size_t mBufferSize;
1845
1846    CallbackThread(const CallbackThread &);
1847    CallbackThread &operator=(const CallbackThread &);
1848};
1849
1850CallbackThread::CallbackThread(
1851        const wp<MediaPlayerBase::AudioSink> &sink,
1852        MediaPlayerBase::AudioSink::AudioCallback cb,
1853        void *cookie)
1854    : mSink(sink),
1855      mCallback(cb),
1856      mCookie(cookie),
1857      mBuffer(NULL),
1858      mBufferSize(0) {
1859}
1860
1861CallbackThread::~CallbackThread() {
1862    if (mBuffer) {
1863        free(mBuffer);
1864        mBuffer = NULL;
1865    }
1866}
1867
1868bool CallbackThread::threadLoop() {
1869    sp<MediaPlayerBase::AudioSink> sink = mSink.promote();
1870    if (sink == NULL) {
1871        return false;
1872    }
1873
1874    if (mBuffer == NULL) {
1875        mBufferSize = sink->bufferSize();
1876        mBuffer = malloc(mBufferSize);
1877    }
1878
1879    size_t actualSize =
1880        (*mCallback)(sink.get(), mBuffer, mBufferSize, mCookie,
1881                MediaPlayerBase::AudioSink::CB_EVENT_FILL_BUFFER);
1882
1883    if (actualSize > 0) {
1884        sink->write(mBuffer, actualSize);
1885        // Could return false on sink->write() error or short count.
1886        // Not necessarily appropriate but would work for AudioCache behavior.
1887    }
1888
1889    return true;
1890}
1891
1892////////////////////////////////////////////////////////////////////////////////
1893
1894void MediaPlayerService::addBatteryData(uint32_t params)
1895{
1896    Mutex::Autolock lock(mLock);
1897
1898    int32_t time = systemTime() / 1000000L;
1899
1900    // change audio output devices. This notification comes from AudioFlinger
1901    if ((params & kBatteryDataSpeakerOn)
1902            || (params & kBatteryDataOtherAudioDeviceOn)) {
1903
1904        int deviceOn[NUM_AUDIO_DEVICES];
1905        for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
1906            deviceOn[i] = 0;
1907        }
1908
1909        if ((params & kBatteryDataSpeakerOn)
1910                && (params & kBatteryDataOtherAudioDeviceOn)) {
1911            deviceOn[SPEAKER_AND_OTHER] = 1;
1912        } else if (params & kBatteryDataSpeakerOn) {
1913            deviceOn[SPEAKER] = 1;
1914        } else {
1915            deviceOn[OTHER_AUDIO_DEVICE] = 1;
1916        }
1917
1918        for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
1919            if (mBatteryAudio.deviceOn[i] != deviceOn[i]){
1920
1921                if (mBatteryAudio.refCount > 0) { // if playing audio
1922                    if (!deviceOn[i]) {
1923                        mBatteryAudio.lastTime[i] += time;
1924                        mBatteryAudio.totalTime[i] += mBatteryAudio.lastTime[i];
1925                        mBatteryAudio.lastTime[i] = 0;
1926                    } else {
1927                        mBatteryAudio.lastTime[i] = 0 - time;
1928                    }
1929                }
1930
1931                mBatteryAudio.deviceOn[i] = deviceOn[i];
1932            }
1933        }
1934        return;
1935    }
1936
1937    // an audio stream is started
1938    if (params & kBatteryDataAudioFlingerStart) {
1939        // record the start time only if currently no other audio
1940        // is being played
1941        if (mBatteryAudio.refCount == 0) {
1942            for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
1943                if (mBatteryAudio.deviceOn[i]) {
1944                    mBatteryAudio.lastTime[i] -= time;
1945                }
1946            }
1947        }
1948
1949        mBatteryAudio.refCount ++;
1950        return;
1951
1952    } else if (params & kBatteryDataAudioFlingerStop) {
1953        if (mBatteryAudio.refCount <= 0) {
1954            ALOGW("Battery track warning: refCount is <= 0");
1955            return;
1956        }
1957
1958        // record the stop time only if currently this is the only
1959        // audio being played
1960        if (mBatteryAudio.refCount == 1) {
1961            for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
1962                if (mBatteryAudio.deviceOn[i]) {
1963                    mBatteryAudio.lastTime[i] += time;
1964                    mBatteryAudio.totalTime[i] += mBatteryAudio.lastTime[i];
1965                    mBatteryAudio.lastTime[i] = 0;
1966                }
1967            }
1968        }
1969
1970        mBatteryAudio.refCount --;
1971        return;
1972    }
1973
1974    int uid = IPCThreadState::self()->getCallingUid();
1975    if (uid == AID_MEDIA) {
1976        return;
1977    }
1978    int index = mBatteryData.indexOfKey(uid);
1979
1980    if (index < 0) { // create a new entry for this UID
1981        BatteryUsageInfo info;
1982        info.audioTotalTime = 0;
1983        info.videoTotalTime = 0;
1984        info.audioLastTime = 0;
1985        info.videoLastTime = 0;
1986        info.refCount = 0;
1987
1988        if (mBatteryData.add(uid, info) == NO_MEMORY) {
1989            ALOGE("Battery track error: no memory for new app");
1990            return;
1991        }
1992    }
1993
1994    BatteryUsageInfo &info = mBatteryData.editValueFor(uid);
1995
1996    if (params & kBatteryDataCodecStarted) {
1997        if (params & kBatteryDataTrackAudio) {
1998            info.audioLastTime -= time;
1999            info.refCount ++;
2000        }
2001        if (params & kBatteryDataTrackVideo) {
2002            info.videoLastTime -= time;
2003            info.refCount ++;
2004        }
2005    } else {
2006        if (info.refCount == 0) {
2007            ALOGW("Battery track warning: refCount is already 0");
2008            return;
2009        } else if (info.refCount < 0) {
2010            ALOGE("Battery track error: refCount < 0");
2011            mBatteryData.removeItem(uid);
2012            return;
2013        }
2014
2015        if (params & kBatteryDataTrackAudio) {
2016            info.audioLastTime += time;
2017            info.refCount --;
2018        }
2019        if (params & kBatteryDataTrackVideo) {
2020            info.videoLastTime += time;
2021            info.refCount --;
2022        }
2023
2024        // no stream is being played by this UID
2025        if (info.refCount == 0) {
2026            info.audioTotalTime += info.audioLastTime;
2027            info.audioLastTime = 0;
2028            info.videoTotalTime += info.videoLastTime;
2029            info.videoLastTime = 0;
2030        }
2031    }
2032}
2033
2034status_t MediaPlayerService::pullBatteryData(Parcel* reply) {
2035    Mutex::Autolock lock(mLock);
2036
2037    // audio output devices usage
2038    int32_t time = systemTime() / 1000000L; //in ms
2039    int32_t totalTime;
2040
2041    for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
2042        totalTime = mBatteryAudio.totalTime[i];
2043
2044        if (mBatteryAudio.deviceOn[i]
2045            && (mBatteryAudio.lastTime[i] != 0)) {
2046                int32_t tmpTime = mBatteryAudio.lastTime[i] + time;
2047                totalTime += tmpTime;
2048        }
2049
2050        reply->writeInt32(totalTime);
2051        // reset the total time
2052        mBatteryAudio.totalTime[i] = 0;
2053   }
2054
2055    // codec usage
2056    BatteryUsageInfo info;
2057    int size = mBatteryData.size();
2058
2059    reply->writeInt32(size);
2060    int i = 0;
2061
2062    while (i < size) {
2063        info = mBatteryData.valueAt(i);
2064
2065        reply->writeInt32(mBatteryData.keyAt(i)); //UID
2066        reply->writeInt32(info.audioTotalTime);
2067        reply->writeInt32(info.videoTotalTime);
2068
2069        info.audioTotalTime = 0;
2070        info.videoTotalTime = 0;
2071
2072        // remove the UID entry where no stream is being played
2073        if (info.refCount <= 0) {
2074            mBatteryData.removeItemsAt(i);
2075            size --;
2076            i --;
2077        }
2078        i++;
2079    }
2080    return NO_ERROR;
2081}
2082} // namespace android
2083