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 <chrono>
25 #include <sys/types.h>
26 #include <sys/stat.h>
27 #include <sys/time.h>
28 #include <dirent.h>
29 #include <unistd.h>
30
31 #include <string.h>
32
33 #include <cutils/atomic.h>
34 #include <cutils/properties.h> // for property_get
35
36 #include <utils/misc.h>
37
38 #include <android/hardware/media/omx/1.0/IOmx.h>
39 #include <android/hardware/media/c2/1.0/IComponentStore.h>
40 #include <binder/IPCThreadState.h>
41 #include <binder/IServiceManager.h>
42 #include <binder/MemoryHeapBase.h>
43 #include <binder/MemoryBase.h>
44 #include <gui/Surface.h>
45 #include <utils/Errors.h> // for status_t
46 #include <utils/String8.h>
47 #include <utils/SystemClock.h>
48 #include <utils/Timers.h>
49 #include <utils/Vector.h>
50
51 #include <codec2/hidl/client.h>
52 #include <datasource/HTTPBase.h>
53 #include <media/AidlConversion.h>
54 #include <media/IMediaHTTPService.h>
55 #include <media/IRemoteDisplay.h>
56 #include <media/IRemoteDisplayClient.h>
57 #include <media/MediaPlayerInterface.h>
58 #include <media/mediarecorder.h>
59 #include <media/MediaMetadataRetrieverInterface.h>
60 #include <media/Metadata.h>
61 #include <media/AudioTrack.h>
62 #include <media/stagefright/InterfaceUtils.h>
63 #include <media/stagefright/MediaCodecConstants.h>
64 #include <media/stagefright/MediaCodecList.h>
65 #include <media/stagefright/MediaErrors.h>
66 #include <media/stagefright/Utils.h>
67 #include <media/stagefright/FoundationUtils.h>
68 #include <media/stagefright/foundation/ADebug.h>
69 #include <media/stagefright/foundation/ALooperRoster.h>
70 #include <media/stagefright/SurfaceUtils.h>
71 #include <mediautils/BatteryNotifier.h>
72 #include <mediautils/MemoryLeakTrackUtil.h>
73 #include <memunreachable/memunreachable.h>
74 #include <system/audio.h>
75
76 #include <private/android_filesystem_config.h>
77
78 #include "ActivityManager.h"
79 #include "MediaRecorderClient.h"
80 #include "MediaPlayerService.h"
81 #include "MetadataRetrieverClient.h"
82 #include "MediaPlayerFactory.h"
83
84 #include "TestPlayerStub.h"
85 #include <nuplayer/NuPlayerDriver.h>
86
87
88 static const int kDumpLockRetries = 50;
89 static const int kDumpLockSleepUs = 20000;
90
91 namespace {
92 using android::media::Metadata;
93 using android::status_t;
94 using android::OK;
95 using android::BAD_VALUE;
96 using android::NOT_ENOUGH_DATA;
97 using android::Parcel;
98 using android::media::VolumeShaper;
99 using android::content::AttributionSourceState;
100
101 // Max number of entries in the filter.
102 const int kMaxFilterSize = 64; // I pulled that out of thin air.
103
104 const float kMaxRequiredSpeed = 8.0f; // for PCM tracks allow up to 8x speedup.
105
106 // FIXME: Move all the metadata related function in the Metadata.cpp
107
108
109 // Unmarshall a filter from a Parcel.
110 // Filter format in a parcel:
111 //
112 // 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
113 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
114 // | number of entries (n) |
115 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
116 // | metadata type 1 |
117 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
118 // | metadata type 2 |
119 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
120 // ....
121 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
122 // | metadata type n |
123 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
124 //
125 // @param p Parcel that should start with a filter.
126 // @param[out] filter On exit contains the list of metadata type to be
127 // filtered.
128 // @param[out] status On exit contains the status code to be returned.
129 // @return true if the parcel starts with a valid filter.
unmarshallFilter(const Parcel & p,Metadata::Filter * filter,status_t * status)130 bool unmarshallFilter(const Parcel& p,
131 Metadata::Filter *filter,
132 status_t *status)
133 {
134 int32_t val;
135 if (p.readInt32(&val) != OK)
136 {
137 ALOGE("Failed to read filter's length");
138 *status = NOT_ENOUGH_DATA;
139 return false;
140 }
141
142 if( val > kMaxFilterSize || val < 0)
143 {
144 ALOGE("Invalid filter len %d", val);
145 *status = BAD_VALUE;
146 return false;
147 }
148
149 const size_t num = val;
150
151 filter->clear();
152 filter->setCapacity(num);
153
154 size_t size = num * sizeof(Metadata::Type);
155
156
157 if (p.dataAvail() < size)
158 {
159 ALOGE("Filter too short expected %zu but got %zu", size, p.dataAvail());
160 *status = NOT_ENOUGH_DATA;
161 return false;
162 }
163
164 const Metadata::Type *data =
165 static_cast<const Metadata::Type*>(p.readInplace(size));
166
167 if (NULL == data)
168 {
169 ALOGE("Filter had no data");
170 *status = BAD_VALUE;
171 return false;
172 }
173
174 // TODO: The stl impl of vector would be more efficient here
175 // because it degenerates into a memcpy on pod types. Try to
176 // replace later or use stl::set.
177 for (size_t i = 0; i < num; ++i)
178 {
179 filter->add(*data);
180 ++data;
181 }
182 *status = OK;
183 return true;
184 }
185
186 // @param filter Of metadata type.
187 // @param val To be searched.
188 // @return true if a match was found.
findMetadata(const Metadata::Filter & filter,const int32_t val)189 bool findMetadata(const Metadata::Filter& filter, const int32_t val)
190 {
191 // Deal with empty and ANY right away
192 if (filter.isEmpty()) return false;
193 if (filter[0] == Metadata::kAny) return true;
194
195 return filter.indexOf(val) >= 0;
196 }
197
198 } // anonymous namespace
199
200
201 namespace {
202 using android::Parcel;
203 using android::String16;
204
205 // marshalling tag indicating flattened utf16 tags
206 // keep in sync with frameworks/base/media/java/android/media/AudioAttributes.java
207 const int32_t kAudioAttributesMarshallTagFlattenTags = 1;
208
209 // Audio attributes format in a parcel:
210 //
211 // 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
212 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
213 // | usage |
214 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
215 // | content_type |
216 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
217 // | source |
218 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
219 // | flags |
220 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
221 // | kAudioAttributesMarshallTagFlattenTags | // ignore tags if not found
222 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
223 // | flattened tags in UTF16 |
224 // | ... |
225 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
226 //
227 // @param p Parcel that contains audio attributes.
228 // @param[out] attributes On exit points to an initialized audio_attributes_t structure
229 // @param[out] status On exit contains the status code to be returned.
unmarshallAudioAttributes(const Parcel & parcel,audio_attributes_t * attributes)230 void unmarshallAudioAttributes(const Parcel& parcel, audio_attributes_t *attributes)
231 {
232 attributes->usage = (audio_usage_t) parcel.readInt32();
233 attributes->content_type = (audio_content_type_t) parcel.readInt32();
234 attributes->source = (audio_source_t) parcel.readInt32();
235 attributes->flags = (audio_flags_mask_t) parcel.readInt32();
236 const bool hasFlattenedTag = (parcel.readInt32() == kAudioAttributesMarshallTagFlattenTags);
237 if (hasFlattenedTag) {
238 // the tags are UTF16, convert to UTF8
239 String16 tags = parcel.readString16();
240 ssize_t realTagSize = utf16_to_utf8_length(tags.c_str(), tags.size());
241 if (realTagSize <= 0) {
242 strcpy(attributes->tags, "");
243 } else {
244 // copy the flattened string into the attributes as the destination for the conversion:
245 // copying array size -1, array for tags was calloc'd, no need to NULL-terminate it
246 size_t tagSize = realTagSize > AUDIO_ATTRIBUTES_TAGS_MAX_SIZE - 1 ?
247 AUDIO_ATTRIBUTES_TAGS_MAX_SIZE - 1 : realTagSize;
248 utf16_to_utf8(tags.c_str(), tagSize, attributes->tags,
249 sizeof(attributes->tags) / sizeof(attributes->tags[0]));
250 }
251 } else {
252 ALOGE("unmarshallAudioAttributes() received unflattened tags, ignoring tag values");
253 strcpy(attributes->tags, "");
254 }
255 }
256 } // anonymous namespace
257
258
259 namespace android {
260
261 extern ALooperRoster gLooperRoster;
262
263
checkPermission(const char * permissionString)264 static bool checkPermission(const char* permissionString) {
265 if (getpid() == IPCThreadState::self()->getCallingPid()) return true;
266 bool ok = checkCallingPermission(String16(permissionString));
267 if (!ok) ALOGE("Request requires %s", permissionString);
268 return ok;
269 }
270
dumpCodecDetails(int fd,const sp<IMediaCodecList> & codecList,bool queryDecoders)271 static void dumpCodecDetails(int fd, const sp<IMediaCodecList> &codecList, bool queryDecoders) {
272 const size_t SIZE = 256;
273 char buffer[SIZE];
274 String8 result;
275
276 const char *codecType = queryDecoders? "Decoder" : "Encoder";
277 snprintf(buffer, SIZE - 1, "\n%s infos by media types:\n"
278 "=============================\n", codecType);
279 result.append(buffer);
280
281 size_t numCodecs = codecList->countCodecs();
282
283 // gather all media types supported by codec class, and link to codecs that support them
284 KeyedVector<AString, Vector<sp<MediaCodecInfo>>> allMediaTypes;
285 for (size_t codec_ix = 0; codec_ix < numCodecs; ++codec_ix) {
286 sp<MediaCodecInfo> info = codecList->getCodecInfo(codec_ix);
287 if (info->isEncoder() == !queryDecoders) {
288 Vector<AString> supportedMediaTypes;
289 info->getSupportedMediaTypes(&supportedMediaTypes);
290 if (!supportedMediaTypes.size()) {
291 snprintf(buffer, SIZE - 1, "warning: %s does not support any media types\n",
292 info->getCodecName());
293 result.append(buffer);
294 } else {
295 for (const AString &mediaType : supportedMediaTypes) {
296 if (allMediaTypes.indexOfKey(mediaType) < 0) {
297 allMediaTypes.add(mediaType, Vector<sp<MediaCodecInfo>>());
298 }
299 allMediaTypes.editValueFor(mediaType).add(info);
300 }
301 }
302 }
303 }
304
305 KeyedVector<AString, bool> visitedCodecs;
306 for (size_t type_ix = 0; type_ix < allMediaTypes.size(); ++type_ix) {
307 const AString &mediaType = allMediaTypes.keyAt(type_ix);
308 snprintf(buffer, SIZE - 1, "\nMedia type '%s':\n", mediaType.c_str());
309 result.append(buffer);
310
311 for (const sp<MediaCodecInfo> &info : allMediaTypes.valueAt(type_ix)) {
312 sp<MediaCodecInfo::Capabilities> caps = info->getCapabilitiesFor(mediaType.c_str());
313 if (caps == NULL) {
314 snprintf(buffer, SIZE - 1, "warning: %s does not have capabilities for type %s\n",
315 info->getCodecName(), mediaType.c_str());
316 result.append(buffer);
317 continue;
318 }
319 snprintf(buffer, SIZE - 1, " %s \"%s\" supports\n",
320 codecType, info->getCodecName());
321 result.append(buffer);
322
323 auto printList = [&](const char *type, const Vector<AString> &values){
324 snprintf(buffer, SIZE - 1, " %s: [", type);
325 result.append(buffer);
326 for (size_t j = 0; j < values.size(); ++j) {
327 snprintf(buffer, SIZE - 1, "\n %s%s", values[j].c_str(),
328 j == values.size() - 1 ? " " : ",");
329 result.append(buffer);
330 }
331 result.append("]\n");
332 };
333
334 if (visitedCodecs.indexOfKey(info->getCodecName()) < 0) {
335 visitedCodecs.add(info->getCodecName(), true);
336 {
337 Vector<AString> aliases;
338 info->getAliases(&aliases);
339 // quote alias
340 for (AString &alias : aliases) {
341 alias.insert("\"", 1, 0);
342 alias.append('"');
343 }
344 printList("aliases", aliases);
345 }
346 {
347 uint32_t attrs = info->getAttributes();
348 Vector<AString> list;
349 list.add(AStringPrintf("encoder: %d",
350 !!(attrs & MediaCodecInfo::kFlagIsEncoder)));
351 list.add(AStringPrintf("vendor: %d",
352 !!(attrs & MediaCodecInfo::kFlagIsVendor)));
353 list.add(AStringPrintf("software-only: %d",
354 !!(attrs & MediaCodecInfo::kFlagIsSoftwareOnly)));
355 list.add(AStringPrintf("hw-accelerated: %d",
356 !!(attrs & MediaCodecInfo::kFlagIsHardwareAccelerated)));
357 printList(AStringPrintf("attributes: %#x", attrs).c_str(), list);
358 }
359
360 snprintf(buffer, SIZE - 1, " owner: \"%s\"\n", info->getOwnerName());
361 result.append(buffer);
362 snprintf(buffer, SIZE - 1, " rank: %u\n", info->getRank());
363 result.append(buffer);
364 } else {
365 result.append(" aliases, attributes, owner, rank: see above\n");
366 }
367
368 {
369 Vector<AString> list;
370 Vector<MediaCodecInfo::ProfileLevel> profileLevels;
371 caps->getSupportedProfileLevels(&profileLevels);
372 for (const MediaCodecInfo::ProfileLevel &pl : profileLevels) {
373 const char *niceProfile =
374 mediaType.equalsIgnoreCase(MIMETYPE_AUDIO_AAC)
375 ? asString_AACObject(pl.mProfile) :
376 mediaType.equalsIgnoreCase(MIMETYPE_VIDEO_MPEG2)
377 ? asString_MPEG2Profile(pl.mProfile) :
378 mediaType.equalsIgnoreCase(MIMETYPE_VIDEO_H263)
379 ? asString_H263Profile(pl.mProfile) :
380 mediaType.equalsIgnoreCase(MIMETYPE_VIDEO_MPEG4)
381 ? asString_MPEG4Profile(pl.mProfile) :
382 mediaType.equalsIgnoreCase(MIMETYPE_VIDEO_AVC)
383 ? asString_AVCProfile(pl.mProfile) :
384 mediaType.equalsIgnoreCase(MIMETYPE_VIDEO_VP8)
385 ? asString_VP8Profile(pl.mProfile) :
386 mediaType.equalsIgnoreCase(MIMETYPE_VIDEO_HEVC)
387 ? asString_HEVCProfile(pl.mProfile) :
388 mediaType.equalsIgnoreCase(MIMETYPE_VIDEO_VP9)
389 ? asString_VP9Profile(pl.mProfile) :
390 mediaType.equalsIgnoreCase(MIMETYPE_VIDEO_AV1)
391 ? asString_AV1Profile(pl.mProfile) :
392 mediaType.equalsIgnoreCase(MIMETYPE_VIDEO_DOLBY_VISION)
393 ? asString_DolbyVisionProfile(pl.mProfile) : "??";
394 const char *niceLevel =
395 mediaType.equalsIgnoreCase(MIMETYPE_VIDEO_MPEG2)
396 ? asString_MPEG2Level(pl.mLevel) :
397 mediaType.equalsIgnoreCase(MIMETYPE_VIDEO_H263)
398 ? asString_H263Level(pl.mLevel) :
399 mediaType.equalsIgnoreCase(MIMETYPE_VIDEO_MPEG4)
400 ? asString_MPEG4Level(pl.mLevel) :
401 mediaType.equalsIgnoreCase(MIMETYPE_VIDEO_AVC)
402 ? asString_AVCLevel(pl.mLevel) :
403 mediaType.equalsIgnoreCase(MIMETYPE_VIDEO_VP8)
404 ? asString_VP8Level(pl.mLevel) :
405 mediaType.equalsIgnoreCase(MIMETYPE_VIDEO_HEVC)
406 ? asString_HEVCTierLevel(pl.mLevel) :
407 mediaType.equalsIgnoreCase(MIMETYPE_VIDEO_VP9)
408 ? asString_VP9Level(pl.mLevel) :
409 mediaType.equalsIgnoreCase(MIMETYPE_VIDEO_AV1)
410 ? asString_AV1Level(pl.mLevel) :
411 mediaType.equalsIgnoreCase(MIMETYPE_VIDEO_DOLBY_VISION)
412 ? asString_DolbyVisionLevel(pl.mLevel) : "??";
413
414 list.add(AStringPrintf("% 5u/% 5u (%s/%s)",
415 pl.mProfile, pl.mLevel, niceProfile, niceLevel));
416 }
417 printList("profile/levels", list);
418 }
419
420 {
421 Vector<AString> list;
422 Vector<uint32_t> colors;
423 caps->getSupportedColorFormats(&colors);
424 for (uint32_t color : colors) {
425 list.add(AStringPrintf("%#x (%s)", color,
426 asString_ColorFormat((int32_t)color)));
427 }
428 printList("colors", list);
429 }
430
431 result.append(" details: ");
432 result.append(caps->getDetails()->debugString(6).c_str());
433 result.append("\n");
434 }
435 }
436 result.append("\n");
437 ::write(fd, result.c_str(), result.size());
438 }
439
440
441 // TODO: Find real cause of Audio/Video delay in PV framework and remove this workaround
442 /* static */ int MediaPlayerService::AudioOutput::mMinBufferCount = 4;
443 /* static */ bool MediaPlayerService::AudioOutput::mIsOnEmulator = false;
444
instantiate()445 void MediaPlayerService::instantiate() {
446 defaultServiceManager()->addService(
447 String16("media.player"), new MediaPlayerService());
448 }
449
MediaPlayerService()450 MediaPlayerService::MediaPlayerService()
451 {
452 ALOGV("MediaPlayerService created");
453 mNextConnId = 1;
454
455 MediaPlayerFactory::registerBuiltinFactories();
456 }
457
~MediaPlayerService()458 MediaPlayerService::~MediaPlayerService()
459 {
460 ALOGV("MediaPlayerService destroyed");
461 }
462
createMediaRecorder(const AttributionSourceState & attributionSource)463 sp<IMediaRecorder> MediaPlayerService::createMediaRecorder(
464 const AttributionSourceState& attributionSource)
465 {
466 // TODO b/182392769: use attribution source util
467 AttributionSourceState verifiedAttributionSource = attributionSource;
468 verifiedAttributionSource.uid = VALUE_OR_FATAL(
469 legacy2aidl_uid_t_int32_t(IPCThreadState::self()->getCallingUid()));
470 verifiedAttributionSource.pid = VALUE_OR_FATAL(
471 legacy2aidl_pid_t_int32_t(IPCThreadState::self()->getCallingPid()));
472 sp<MediaRecorderClient> recorder =
473 new MediaRecorderClient(this, verifiedAttributionSource);
474 wp<MediaRecorderClient> w = recorder;
475 Mutex::Autolock lock(mLock);
476 mMediaRecorderClients.add(w);
477 ALOGV("Create new media recorder client from pid %s",
478 verifiedAttributionSource.toString().c_str());
479 return recorder;
480 }
481
removeMediaRecorderClient(const wp<MediaRecorderClient> & client)482 void MediaPlayerService::removeMediaRecorderClient(const wp<MediaRecorderClient>& client)
483 {
484 Mutex::Autolock lock(mLock);
485 mMediaRecorderClients.remove(client);
486 ALOGV("Delete media recorder client");
487 }
488
createMetadataRetriever()489 sp<IMediaMetadataRetriever> MediaPlayerService::createMetadataRetriever()
490 {
491 pid_t pid = IPCThreadState::self()->getCallingPid();
492 sp<MetadataRetrieverClient> retriever = new MetadataRetrieverClient(pid);
493 ALOGV("Create new media retriever from pid %d", pid);
494 return retriever;
495 }
496
create(const sp<IMediaPlayerClient> & client,audio_session_t audioSessionId,const AttributionSourceState & attributionSource)497 sp<IMediaPlayer> MediaPlayerService::create(const sp<IMediaPlayerClient>& client,
498 audio_session_t audioSessionId, const AttributionSourceState& attributionSource)
499 {
500 int32_t connId = android_atomic_inc(&mNextConnId);
501 // TODO b/182392769: use attribution source util
502 AttributionSourceState verifiedAttributionSource = attributionSource;
503 verifiedAttributionSource.pid = VALUE_OR_FATAL(
504 legacy2aidl_pid_t_int32_t(IPCThreadState::self()->getCallingPid()));
505 verifiedAttributionSource.uid = VALUE_OR_FATAL(
506 legacy2aidl_uid_t_int32_t(IPCThreadState::self()->getCallingUid()));
507
508 sp<Client> c = new Client(
509 this, verifiedAttributionSource, connId, client, audioSessionId);
510
511 ALOGV("Create new client(%d) from %s, ", connId,
512 verifiedAttributionSource.toString().c_str());
513
514 wp<Client> w = c;
515 {
516 Mutex::Autolock lock(mLock);
517 mClients.add(w);
518 }
519 return c;
520 }
521
getCodecList() const522 sp<IMediaCodecList> MediaPlayerService::getCodecList() const {
523 return MediaCodecList::getLocalInstance();
524 }
525
listenForRemoteDisplay(const String16 &,const sp<IRemoteDisplayClient> &,const String8 &)526 sp<IRemoteDisplay> MediaPlayerService::listenForRemoteDisplay(
527 const String16 &/*opPackageName*/,
528 const sp<IRemoteDisplayClient>& /*client*/,
529 const String8& /*iface*/) {
530 ALOGE("listenForRemoteDisplay is no longer supported!");
531
532 return NULL;
533 }
534
dump(int fd,const Vector<String16> & args) const535 status_t MediaPlayerService::AudioOutput::dump(int fd, const Vector<String16>& args) const
536 {
537 const size_t SIZE = 256;
538 char buffer[SIZE];
539 String8 result;
540
541 result.append(" AudioOutput\n");
542 snprintf(buffer, 255, " stream type(%d), left - right volume(%f, %f)\n",
543 mStreamType, mLeftVolume, mRightVolume);
544 result.append(buffer);
545 snprintf(buffer, 255, " msec per frame(%f), latency (%d)\n",
546 mMsecsPerFrame, (mTrack != 0) ? mTrack->latency() : -1);
547 result.append(buffer);
548 snprintf(buffer, 255, " aux effect id(%d), send level (%f)\n",
549 mAuxEffectId, mSendLevel);
550 result.append(buffer);
551
552 ::write(fd, result.c_str(), result.size());
553 if (mTrack != 0) {
554 mTrack->dump(fd, args);
555 }
556 return NO_ERROR;
557 }
558
dump(int fd,const Vector<String16> & args)559 status_t MediaPlayerService::Client::dump(int fd, const Vector<String16>& args)
560 {
561 const size_t SIZE = 256;
562 char buffer[SIZE];
563 String8 result;
564 result.append(" Client\n");
565 snprintf(buffer, 255, " AttributionSource(%s), connId(%d), status(%d), looping(%s)\n",
566 mAttributionSource.toString().c_str(), mConnId, mStatus, mLoop?"true": "false");
567 result.append(buffer);
568
569 sp<MediaPlayerBase> p;
570 sp<AudioOutput> audioOutput;
571 bool locked = false;
572 for (int i = 0; i < kDumpLockRetries; ++i) {
573 if (mLock.tryLock() == NO_ERROR) {
574 locked = true;
575 break;
576 }
577 usleep(kDumpLockSleepUs);
578 }
579
580 if (locked) {
581 p = mPlayer;
582 audioOutput = mAudioOutput;
583 mLock.unlock();
584 } else {
585 result.append(" lock is taken, no dump from player and audio output\n");
586 }
587 write(fd, result.c_str(), result.size());
588
589 if (p != NULL) {
590 p->dump(fd, args);
591 }
592 if (audioOutput != 0) {
593 audioOutput->dump(fd, args);
594 }
595 write(fd, "\n", 1);
596 return NO_ERROR;
597 }
598
599 /**
600 * The only arguments this understands right now are -c, -von and -voff,
601 * which are parsed by ALooperRoster::dump()
602 */
dump(int fd,const Vector<String16> & args)603 status_t MediaPlayerService::dump(int fd, const Vector<String16>& args)
604 {
605 const size_t SIZE = 256;
606 char buffer[SIZE];
607 String8 result;
608 SortedVector< sp<Client> > clients; //to serialise the mutex unlock & client destruction.
609 SortedVector< sp<MediaRecorderClient> > mediaRecorderClients;
610
611 if (checkCallingPermission(String16("android.permission.DUMP")) == false) {
612 snprintf(buffer, SIZE - 1, "Permission Denial: "
613 "can't dump MediaPlayerService from pid=%d, uid=%d\n",
614 IPCThreadState::self()->getCallingPid(),
615 IPCThreadState::self()->getCallingUid());
616 result.append(buffer);
617 } else {
618 {
619 // capture clients under lock
620 Mutex::Autolock lock(mLock);
621 for (int i = 0, n = mClients.size(); i < n; ++i) {
622 sp<Client> c = mClients[i].promote();
623 if (c != nullptr) {
624 clients.add(c);
625 }
626 }
627
628 for (int i = 0, n = mMediaRecorderClients.size(); i < n; ++i) {
629 sp<MediaRecorderClient> c = mMediaRecorderClients[i].promote();
630 if (c != nullptr) {
631 mediaRecorderClients.add(c);
632 }
633 }
634 }
635
636 // dump clients outside of lock
637 for (const sp<Client> &c : clients) {
638 c->dump(fd, args);
639 }
640 if (mediaRecorderClients.size() == 0) {
641 result.append(" No media recorder client\n\n");
642 } else {
643 for (const sp<MediaRecorderClient> &c : mediaRecorderClients) {
644 snprintf(buffer, 255, " MediaRecorderClient pid(%d)\n",
645 c->mAttributionSource.pid);
646 result.append(buffer);
647 write(fd, result.c_str(), result.size());
648 result = "\n";
649 c->dump(fd, args);
650
651 }
652 }
653
654 result.append(" Files opened and/or mapped:\n");
655 snprintf(buffer, SIZE - 1, "/proc/%d/maps", getpid());
656 FILE *f = fopen(buffer, "r");
657 if (f) {
658 while (!feof(f)) {
659 fgets(buffer, SIZE - 1, f);
660 if (strstr(buffer, " /storage/") ||
661 strstr(buffer, " /system/sounds/") ||
662 strstr(buffer, " /data/") ||
663 strstr(buffer, " /system/media/")) {
664 result.append(" ");
665 result.append(buffer);
666 }
667 }
668 fclose(f);
669 } else {
670 result.append("couldn't open ");
671 result.append(buffer);
672 result.append("\n");
673 }
674
675 snprintf(buffer, SIZE - 1, "/proc/%d/fd", getpid());
676 DIR *d = opendir(buffer);
677 if (d) {
678 struct dirent *ent;
679 while((ent = readdir(d)) != NULL) {
680 if (strcmp(ent->d_name,".") && strcmp(ent->d_name,"..")) {
681 snprintf(buffer, SIZE - 1, "/proc/%d/fd/%s", getpid(), ent->d_name);
682 struct stat s;
683 if (lstat(buffer, &s) == 0) {
684 if ((s.st_mode & S_IFMT) == S_IFLNK) {
685 char linkto[256];
686 int len = readlink(buffer, linkto, sizeof(linkto));
687 if(len > 0) {
688 if(len > 255) {
689 linkto[252] = '.';
690 linkto[253] = '.';
691 linkto[254] = '.';
692 linkto[255] = 0;
693 } else {
694 linkto[len] = 0;
695 }
696 if (strstr(linkto, "/storage/") == linkto ||
697 strstr(linkto, "/system/sounds/") == linkto ||
698 strstr(linkto, "/data/") == linkto ||
699 strstr(linkto, "/system/media/") == linkto) {
700 result.append(" ");
701 result.append(buffer);
702 result.append(" -> ");
703 result.append(linkto);
704 result.append("\n");
705 }
706 }
707 } else {
708 result.append(" unexpected type for ");
709 result.append(buffer);
710 result.append("\n");
711 }
712 }
713 }
714 }
715 closedir(d);
716 } else {
717 result.append("couldn't open ");
718 result.append(buffer);
719 result.append("\n");
720 }
721
722 gLooperRoster.dump(fd, args);
723
724 sp<IMediaCodecList> codecList = getCodecList();
725 dumpCodecDetails(fd, codecList, true /* decoders */);
726 dumpCodecDetails(fd, codecList, false /* !decoders */);
727
728 bool dumpMem = false;
729 bool unreachableMemory = false;
730 for (size_t i = 0; i < args.size(); i++) {
731 if (args[i] == String16("-m")) {
732 dumpMem = true;
733 } else if (args[i] == String16("--unreachable")) {
734 unreachableMemory = true;
735 }
736 }
737 if (dumpMem) {
738 result.append("\nDumping memory:\n");
739 std::string s = dumpMemoryAddresses(100 /* limit */);
740 result.append(s.c_str(), s.size());
741 }
742 if (unreachableMemory) {
743 result.append("\nDumping unreachable memory:\n");
744 // TODO - should limit be an argument parameter?
745 std::string s = GetUnreachableMemoryString(true /* contents */, 10000 /* limit */);
746 result.append(s.c_str(), s.size());
747 }
748 }
749 write(fd, result.c_str(), result.size());
750
751 return NO_ERROR;
752 }
753
removeClient(const wp<Client> & client)754 void MediaPlayerService::removeClient(const wp<Client>& client)
755 {
756 Mutex::Autolock lock(mLock);
757 mClients.remove(client);
758 }
759
hasClient(wp<Client> client)760 bool MediaPlayerService::hasClient(wp<Client> client)
761 {
762 Mutex::Autolock lock(mLock);
763 return mClients.indexOf(client) != NAME_NOT_FOUND;
764 }
765
Client(const sp<MediaPlayerService> & service,const AttributionSourceState & attributionSource,int32_t connId,const sp<IMediaPlayerClient> & client,audio_session_t audioSessionId)766 MediaPlayerService::Client::Client(
767 const sp<MediaPlayerService>& service, const AttributionSourceState& attributionSource,
768 int32_t connId, const sp<IMediaPlayerClient>& client,
769 audio_session_t audioSessionId)
770 : mAttributionSource(attributionSource)
771 {
772 ALOGV("Client(%d) constructor", connId);
773 mConnId = connId;
774 mService = service;
775 mClient = client;
776 mLoop = false;
777 mStatus = NO_INIT;
778 mAudioSessionId = audioSessionId;
779 mRetransmitEndpointValid = false;
780 mAudioAttributes = NULL;
781 mListener = new Listener(this);
782
783 #if CALLBACK_ANTAGONIZER
784 ALOGD("create Antagonizer");
785 mAntagonizer = new Antagonizer(mListener);
786 #endif
787 }
788
~Client()789 MediaPlayerService::Client::~Client()
790 {
791 ALOGV("Client(%d) destructor AttributionSource = %s", mConnId,
792 mAttributionSource.toString().c_str());
793 mAudioOutput.clear();
794 wp<Client> client(this);
795 disconnect();
796 mService->removeClient(client);
797 if (mAudioAttributes != NULL) {
798 free(mAudioAttributes);
799 }
800 mAudioDeviceUpdatedListener.clear();
801 }
802
disconnect()803 void MediaPlayerService::Client::disconnect()
804 {
805 ALOGV("disconnect(%d) from AttributionSource %s", mConnId,
806 mAttributionSource.toString().c_str());
807 // grab local reference and clear main reference to prevent future
808 // access to object
809 sp<MediaPlayerBase> p;
810 {
811 Mutex::Autolock l(mLock);
812 p = mPlayer;
813 mClient.clear();
814 mPlayer.clear();
815 }
816
817 // clear the notification to prevent callbacks to dead client
818 // and reset the player. We assume the player will serialize
819 // access to itself if necessary.
820 if (p != 0) {
821 p->setNotifyCallback(0);
822 #if CALLBACK_ANTAGONIZER
823 ALOGD("kill Antagonizer");
824 mAntagonizer->kill();
825 #endif
826 p->reset();
827 }
828
829 {
830 Mutex::Autolock l(mLock);
831 disconnectNativeWindow_l();
832 }
833
834 IPCThreadState::self()->flushCommands();
835 }
836
createPlayer(player_type playerType)837 sp<MediaPlayerBase> MediaPlayerService::Client::createPlayer(player_type playerType)
838 {
839 // determine if we have the right player type
840 sp<MediaPlayerBase> p = getPlayer();
841 if ((p != NULL) && (p->playerType() != playerType)) {
842 ALOGV("delete player");
843 p.clear();
844 }
845 if (p == NULL) {
846 p = MediaPlayerFactory::createPlayer(playerType, mListener,
847 VALUE_OR_FATAL(aidl2legacy_int32_t_pid_t(mAttributionSource.pid)));
848 }
849
850 if (p != NULL) {
851 p->setUID(VALUE_OR_FATAL(aidl2legacy_int32_t_uid_t(mAttributionSource.uid)));
852 }
853
854 return p;
855 }
856
onAudioDeviceUpdate(audio_io_handle_t audioIo,audio_port_handle_t deviceId)857 void MediaPlayerService::Client::AudioDeviceUpdatedNotifier::onAudioDeviceUpdate(
858 audio_io_handle_t audioIo,
859 audio_port_handle_t deviceId) {
860 sp<MediaPlayerBase> listener = mListener.promote();
861 if (listener != NULL) {
862 listener->sendEvent(MEDIA_AUDIO_ROUTING_CHANGED, audioIo, deviceId);
863 } else {
864 ALOGW("listener for process %d death is gone", MEDIA_AUDIO_ROUTING_CHANGED);
865 }
866 }
867
setDataSource_pre(player_type playerType)868 sp<MediaPlayerBase> MediaPlayerService::Client::setDataSource_pre(
869 player_type playerType)
870 {
871 ALOGV("player type = %d", playerType);
872
873 // create the right type of player
874 sp<MediaPlayerBase> p = createPlayer(playerType);
875 if (p == NULL) {
876 return p;
877 }
878
879 std::vector<DeathNotifier> deathNotifiers;
880
881 // Listen to death of media.extractor service
882 sp<IServiceManager> sm = defaultServiceManager();
883 sp<IBinder> binder = sm->getService(String16("media.extractor"));
884 if (binder == NULL) {
885 ALOGE("extractor service not available");
886 return NULL;
887 }
888 deathNotifiers.emplace_back(
889 binder, [l = wp<MediaPlayerBase>(p)]() {
890 sp<MediaPlayerBase> listener = l.promote();
891 if (listener) {
892 ALOGI("media.extractor died. Sending death notification.");
893 listener->sendEvent(MEDIA_ERROR, MEDIA_ERROR_SERVER_DIED,
894 MEDIAEXTRACTOR_PROCESS_DEATH);
895 } else {
896 ALOGW("media.extractor died without a death handler.");
897 }
898 });
899
900 {
901 using ::android::hidl::base::V1_0::IBase;
902
903 // Listen to death of OMX service
904 {
905 sp<IBase> base = ::android::hardware::media::omx::V1_0::
906 IOmx::getService();
907 if (base == nullptr) {
908 ALOGD("OMX service is not available");
909 } else {
910 deathNotifiers.emplace_back(
911 base, [l = wp<MediaPlayerBase>(p)]() {
912 sp<MediaPlayerBase> listener = l.promote();
913 if (listener) {
914 ALOGI("OMX service died. "
915 "Sending death notification.");
916 listener->sendEvent(
917 MEDIA_ERROR, MEDIA_ERROR_SERVER_DIED,
918 MEDIACODEC_PROCESS_DEATH);
919 } else {
920 ALOGW("OMX service died without a death handler.");
921 }
922 });
923 }
924 }
925
926 // Listen to death of Codec2 services
927 {
928 for (std::shared_ptr<Codec2Client> const& client :
929 Codec2Client::CreateFromAllServices()) {
930 sp<IBase> hidlBase = client->getHidlBase();
931 ::ndk::SpAIBinder aidlBase = client->getAidlBase();
932 auto onBinderDied = [l = wp<MediaPlayerBase>(p),
933 name = std::string(client->getServiceName())]() {
934 sp<MediaPlayerBase> listener = l.promote();
935 if (listener) {
936 ALOGI("Codec2 service \"%s\" died. "
937 "Sending death notification.",
938 name.c_str());
939 listener->sendEvent(
940 MEDIA_ERROR, MEDIA_ERROR_SERVER_DIED,
941 MEDIACODEC_PROCESS_DEATH);
942 } else {
943 ALOGW("Codec2 service \"%s\" died "
944 "without a death handler.",
945 name.c_str());
946 }
947 };
948 if (hidlBase) {
949 deathNotifiers.emplace_back(hidlBase, onBinderDied);
950 } else if (aidlBase.get() != nullptr) {
951 deathNotifiers.emplace_back(aidlBase, onBinderDied);
952 }
953 }
954 }
955 }
956
957 Mutex::Autolock lock(mLock);
958
959 mDeathNotifiers.clear();
960 mDeathNotifiers.swap(deathNotifiers);
961 mAudioDeviceUpdatedListener = new AudioDeviceUpdatedNotifier(p);
962
963 if (!p->hardwareOutput()) {
964 mAudioOutput = new AudioOutput(mAudioSessionId, mAttributionSource,
965 mAudioAttributes, mAudioDeviceUpdatedListener);
966 static_cast<MediaPlayerInterface*>(p.get())->setAudioSink(mAudioOutput);
967 }
968
969 return p;
970 }
971
setDataSource_post(const sp<MediaPlayerBase> & p,status_t status)972 status_t MediaPlayerService::Client::setDataSource_post(
973 const sp<MediaPlayerBase>& p,
974 status_t status)
975 {
976 ALOGV(" setDataSource");
977 if (status != OK) {
978 ALOGE(" error: %d", status);
979 return status;
980 }
981
982 // Set the re-transmission endpoint if one was chosen.
983 if (mRetransmitEndpointValid) {
984 status = p->setRetransmitEndpoint(&mRetransmitEndpoint);
985 if (status != NO_ERROR) {
986 ALOGE("setRetransmitEndpoint error: %d", status);
987 }
988 }
989
990 if (status == OK) {
991 Mutex::Autolock lock(mLock);
992 mPlayer = p;
993 }
994 return status;
995 }
996
setDataSource(const sp<IMediaHTTPService> & httpService,const char * url,const KeyedVector<String8,String8> * headers)997 status_t MediaPlayerService::Client::setDataSource(
998 const sp<IMediaHTTPService> &httpService,
999 const char *url,
1000 const KeyedVector<String8, String8> *headers)
1001 {
1002 ALOGV("setDataSource(%s)", url);
1003 if (url == NULL)
1004 return UNKNOWN_ERROR;
1005
1006 if ((strncmp(url, "http://", 7) == 0) ||
1007 (strncmp(url, "https://", 8) == 0) ||
1008 (strncmp(url, "rtsp://", 7) == 0)) {
1009 if (!checkPermission("android.permission.INTERNET")) {
1010 return PERMISSION_DENIED;
1011 }
1012 }
1013
1014 if (strncmp(url, "content://", 10) == 0) {
1015 // get a filedescriptor for the content Uri and
1016 // pass it to the setDataSource(fd) method
1017
1018 String16 url16(url);
1019 int fd = android::openContentProviderFile(url16);
1020 if (fd < 0)
1021 {
1022 ALOGE("Couldn't open fd for %s", url);
1023 return UNKNOWN_ERROR;
1024 }
1025 status_t status = setDataSource(fd, 0, 0x7fffffffffLL); // this sets mStatus
1026 close(fd);
1027 return mStatus = status;
1028 } else {
1029 player_type playerType = MediaPlayerFactory::getPlayerType(this, url);
1030 sp<MediaPlayerBase> p = setDataSource_pre(playerType);
1031 if (p == NULL) {
1032 return NO_INIT;
1033 }
1034
1035 return mStatus =
1036 setDataSource_post(
1037 p, p->setDataSource(httpService, url, headers));
1038 }
1039 }
1040
setDataSource(int fd,int64_t offset,int64_t length)1041 status_t MediaPlayerService::Client::setDataSource(int fd, int64_t offset, int64_t length)
1042 {
1043 ALOGV("setDataSource fd=%d (%s), offset=%lld, length=%lld",
1044 fd, nameForFd(fd).c_str(), (long long) offset, (long long) length);
1045 struct stat sb;
1046 int ret = fstat(fd, &sb);
1047 if (ret != 0) {
1048 ALOGE("fstat(%d) failed: %d, %s", fd, ret, strerror(errno));
1049 return UNKNOWN_ERROR;
1050 }
1051
1052 ALOGV("st_dev = %llu", static_cast<unsigned long long>(sb.st_dev));
1053 ALOGV("st_mode = %u", sb.st_mode);
1054 ALOGV("st_uid = %lu", static_cast<unsigned long>(sb.st_uid));
1055 ALOGV("st_gid = %lu", static_cast<unsigned long>(sb.st_gid));
1056 ALOGV("st_size = %llu", static_cast<unsigned long long>(sb.st_size));
1057
1058 if (offset >= sb.st_size) {
1059 ALOGE("offset error");
1060 return UNKNOWN_ERROR;
1061 }
1062 if (offset + length > sb.st_size) {
1063 length = sb.st_size - offset;
1064 ALOGV("calculated length = %lld", (long long)length);
1065 }
1066
1067 player_type playerType = MediaPlayerFactory::getPlayerType(this,
1068 fd,
1069 offset,
1070 length);
1071 sp<MediaPlayerBase> p = setDataSource_pre(playerType);
1072 if (p == NULL) {
1073 return NO_INIT;
1074 }
1075
1076 // now set data source
1077 return mStatus = setDataSource_post(p, p->setDataSource(fd, offset, length));
1078 }
1079
setDataSource(const sp<IStreamSource> & source)1080 status_t MediaPlayerService::Client::setDataSource(
1081 const sp<IStreamSource> &source) {
1082 // create the right type of player
1083 player_type playerType = MediaPlayerFactory::getPlayerType(this, source);
1084 sp<MediaPlayerBase> p = setDataSource_pre(playerType);
1085 if (p == NULL) {
1086 return NO_INIT;
1087 }
1088
1089 // now set data source
1090 return mStatus = setDataSource_post(p, p->setDataSource(source));
1091 }
1092
setDataSource(const sp<IDataSource> & source)1093 status_t MediaPlayerService::Client::setDataSource(
1094 const sp<IDataSource> &source) {
1095 sp<DataSource> dataSource = CreateDataSourceFromIDataSource(source);
1096 player_type playerType = MediaPlayerFactory::getPlayerType(this, dataSource);
1097 sp<MediaPlayerBase> p = setDataSource_pre(playerType);
1098 if (p == NULL) {
1099 return NO_INIT;
1100 }
1101 // now set data source
1102 return mStatus = setDataSource_post(p, p->setDataSource(dataSource));
1103 }
1104
setDataSource(const String8 & rtpParams)1105 status_t MediaPlayerService::Client::setDataSource(
1106 const String8& rtpParams) {
1107 player_type playerType = NU_PLAYER;
1108 sp<MediaPlayerBase> p = setDataSource_pre(playerType);
1109 if (p == NULL) {
1110 return NO_INIT;
1111 }
1112 // now set data source
1113 return mStatus = setDataSource_post(p, p->setDataSource(rtpParams));
1114 }
1115
disconnectNativeWindow_l()1116 void MediaPlayerService::Client::disconnectNativeWindow_l() {
1117 if (mConnectedWindow != NULL) {
1118 status_t err = nativeWindowDisconnect(
1119 mConnectedWindow.get(), "disconnectNativeWindow");
1120
1121 if (err != OK) {
1122 ALOGW("nativeWindowDisconnect returned an error: %s (%d)",
1123 strerror(-err), err);
1124 }
1125 }
1126 mConnectedWindow.clear();
1127 }
1128
setVideoSurfaceTexture(const sp<IGraphicBufferProducer> & bufferProducer)1129 status_t MediaPlayerService::Client::setVideoSurfaceTexture(
1130 const sp<IGraphicBufferProducer>& bufferProducer)
1131 {
1132 ALOGV("[%d] setVideoSurfaceTexture(%p)", mConnId, bufferProducer.get());
1133 sp<MediaPlayerBase> p = getPlayer();
1134 if (p == 0) return UNKNOWN_ERROR;
1135
1136 sp<IBinder> binder(IInterface::asBinder(bufferProducer));
1137 if (mConnectedWindowBinder == binder) {
1138 return OK;
1139 }
1140
1141 sp<ANativeWindow> anw;
1142 if (bufferProducer != NULL) {
1143 anw = new Surface(bufferProducer, true /* controlledByApp */);
1144 status_t err = nativeWindowConnect(anw.get(), "setVideoSurfaceTexture");
1145
1146 if (err != OK) {
1147 ALOGE("setVideoSurfaceTexture failed: %d", err);
1148 // Note that we must do the reset before disconnecting from the ANW.
1149 // Otherwise queue/dequeue calls could be made on the disconnected
1150 // ANW, which may result in errors.
1151 reset();
1152
1153 Mutex::Autolock lock(mLock);
1154 disconnectNativeWindow_l();
1155
1156 return err;
1157 }
1158 }
1159
1160 // Note that we must set the player's new GraphicBufferProducer before
1161 // disconnecting the old one. Otherwise queue/dequeue calls could be made
1162 // on the disconnected ANW, which may result in errors.
1163 status_t err = p->setVideoSurfaceTexture(bufferProducer);
1164
1165 mLock.lock();
1166 disconnectNativeWindow_l();
1167
1168 if (err == OK) {
1169 mConnectedWindow = anw;
1170 mConnectedWindowBinder = binder;
1171 mLock.unlock();
1172 } else {
1173 mLock.unlock();
1174 status_t err = nativeWindowDisconnect(
1175 anw.get(), "disconnectNativeWindow");
1176
1177 if (err != OK) {
1178 ALOGW("nativeWindowDisconnect returned an error: %s (%d)",
1179 strerror(-err), err);
1180 }
1181 }
1182
1183 return err;
1184 }
1185
invoke(const Parcel & request,Parcel * reply)1186 status_t MediaPlayerService::Client::invoke(const Parcel& request,
1187 Parcel *reply)
1188 {
1189 sp<MediaPlayerBase> p = getPlayer();
1190 if (p == NULL) return UNKNOWN_ERROR;
1191 return p->invoke(request, reply);
1192 }
1193
1194 // This call doesn't need to access the native player.
setMetadataFilter(const Parcel & filter)1195 status_t MediaPlayerService::Client::setMetadataFilter(const Parcel& filter)
1196 {
1197 status_t status;
1198 media::Metadata::Filter allow, drop;
1199
1200 if (unmarshallFilter(filter, &allow, &status) &&
1201 unmarshallFilter(filter, &drop, &status)) {
1202 Mutex::Autolock lock(mLock);
1203
1204 mMetadataAllow = allow;
1205 mMetadataDrop = drop;
1206 }
1207 return status;
1208 }
1209
getMetadata(bool update_only,bool,Parcel * reply)1210 status_t MediaPlayerService::Client::getMetadata(
1211 bool update_only, bool /*apply_filter*/, Parcel *reply)
1212 {
1213 sp<MediaPlayerBase> player = getPlayer();
1214 if (player == 0) return UNKNOWN_ERROR;
1215
1216 status_t status;
1217 // Placeholder for the return code, updated by the caller.
1218 reply->writeInt32(-1);
1219
1220 media::Metadata::Filter ids;
1221
1222 // We don't block notifications while we fetch the data. We clear
1223 // mMetadataUpdated first so we don't lose notifications happening
1224 // during the rest of this call.
1225 {
1226 Mutex::Autolock lock(mLock);
1227 if (update_only) {
1228 ids = mMetadataUpdated;
1229 }
1230 mMetadataUpdated.clear();
1231 }
1232
1233 media::Metadata metadata(reply);
1234
1235 metadata.appendHeader();
1236 status = player->getMetadata(ids, reply);
1237
1238 if (status != OK) {
1239 metadata.resetParcel();
1240 ALOGE("getMetadata failed %d", status);
1241 return status;
1242 }
1243
1244 // FIXME: Implement filtering on the result. Not critical since
1245 // filtering takes place on the update notifications already. This
1246 // would be when all the metadata are fetch and a filter is set.
1247
1248 // Everything is fine, update the metadata length.
1249 metadata.updateLength();
1250 return OK;
1251 }
1252
setBufferingSettings(const BufferingSettings & buffering)1253 status_t MediaPlayerService::Client::setBufferingSettings(
1254 const BufferingSettings& buffering)
1255 {
1256 ALOGV("[%d] setBufferingSettings{%s}",
1257 mConnId, buffering.toString().c_str());
1258 sp<MediaPlayerBase> p = getPlayer();
1259 if (p == 0) return UNKNOWN_ERROR;
1260 return p->setBufferingSettings(buffering);
1261 }
1262
getBufferingSettings(BufferingSettings * buffering)1263 status_t MediaPlayerService::Client::getBufferingSettings(
1264 BufferingSettings* buffering /* nonnull */)
1265 {
1266 sp<MediaPlayerBase> p = getPlayer();
1267 // TODO: create mPlayer on demand.
1268 if (p == 0) return UNKNOWN_ERROR;
1269 status_t ret = p->getBufferingSettings(buffering);
1270 if (ret == NO_ERROR) {
1271 ALOGV("[%d] getBufferingSettings{%s}",
1272 mConnId, buffering->toString().c_str());
1273 } else {
1274 ALOGE("[%d] getBufferingSettings returned %d", mConnId, ret);
1275 }
1276 return ret;
1277 }
1278
prepareAsync()1279 status_t MediaPlayerService::Client::prepareAsync()
1280 {
1281 ALOGV("[%d] prepareAsync", mConnId);
1282 sp<MediaPlayerBase> p = getPlayer();
1283 if (p == 0) return UNKNOWN_ERROR;
1284 status_t ret = p->prepareAsync();
1285 #if CALLBACK_ANTAGONIZER
1286 ALOGD("start Antagonizer");
1287 if (ret == NO_ERROR) mAntagonizer->start();
1288 #endif
1289 return ret;
1290 }
1291
start()1292 status_t MediaPlayerService::Client::start()
1293 {
1294 ALOGV("[%d] start", mConnId);
1295 sp<MediaPlayerBase> p = getPlayer();
1296 if (p == 0) return UNKNOWN_ERROR;
1297 p->setLooping(mLoop);
1298 return p->start();
1299 }
1300
stop()1301 status_t MediaPlayerService::Client::stop()
1302 {
1303 ALOGV("[%d] stop", mConnId);
1304 sp<MediaPlayerBase> p = getPlayer();
1305 if (p == 0) return UNKNOWN_ERROR;
1306 return p->stop();
1307 }
1308
pause()1309 status_t MediaPlayerService::Client::pause()
1310 {
1311 ALOGV("[%d] pause", mConnId);
1312 sp<MediaPlayerBase> p = getPlayer();
1313 if (p == 0) return UNKNOWN_ERROR;
1314 return p->pause();
1315 }
1316
isPlaying(bool * state)1317 status_t MediaPlayerService::Client::isPlaying(bool* state)
1318 {
1319 *state = false;
1320 sp<MediaPlayerBase> p = getPlayer();
1321 if (p == 0) return UNKNOWN_ERROR;
1322 *state = p->isPlaying();
1323 ALOGV("[%d] isPlaying: %d", mConnId, *state);
1324 return NO_ERROR;
1325 }
1326
setPlaybackSettings(const AudioPlaybackRate & rate)1327 status_t MediaPlayerService::Client::setPlaybackSettings(const AudioPlaybackRate& rate)
1328 {
1329 ALOGV("[%d] setPlaybackSettings(%f, %f, %d, %d)",
1330 mConnId, rate.mSpeed, rate.mPitch, rate.mFallbackMode, rate.mStretchMode);
1331 sp<MediaPlayerBase> p = getPlayer();
1332 if (p == 0) return UNKNOWN_ERROR;
1333 return p->setPlaybackSettings(rate);
1334 }
1335
getPlaybackSettings(AudioPlaybackRate * rate)1336 status_t MediaPlayerService::Client::getPlaybackSettings(AudioPlaybackRate* rate /* nonnull */)
1337 {
1338 sp<MediaPlayerBase> p = getPlayer();
1339 if (p == 0) return UNKNOWN_ERROR;
1340 status_t ret = p->getPlaybackSettings(rate);
1341 if (ret == NO_ERROR) {
1342 ALOGV("[%d] getPlaybackSettings(%f, %f, %d, %d)",
1343 mConnId, rate->mSpeed, rate->mPitch, rate->mFallbackMode, rate->mStretchMode);
1344 } else {
1345 ALOGV("[%d] getPlaybackSettings returned %d", mConnId, ret);
1346 }
1347 return ret;
1348 }
1349
setSyncSettings(const AVSyncSettings & sync,float videoFpsHint)1350 status_t MediaPlayerService::Client::setSyncSettings(
1351 const AVSyncSettings& sync, float videoFpsHint)
1352 {
1353 ALOGV("[%d] setSyncSettings(%u, %u, %f, %f)",
1354 mConnId, sync.mSource, sync.mAudioAdjustMode, sync.mTolerance, videoFpsHint);
1355 sp<MediaPlayerBase> p = getPlayer();
1356 if (p == 0) return UNKNOWN_ERROR;
1357 return p->setSyncSettings(sync, videoFpsHint);
1358 }
1359
getSyncSettings(AVSyncSettings * sync,float * videoFps)1360 status_t MediaPlayerService::Client::getSyncSettings(
1361 AVSyncSettings* sync /* nonnull */, float* videoFps /* nonnull */)
1362 {
1363 sp<MediaPlayerBase> p = getPlayer();
1364 if (p == 0) return UNKNOWN_ERROR;
1365 status_t ret = p->getSyncSettings(sync, videoFps);
1366 if (ret == NO_ERROR) {
1367 ALOGV("[%d] getSyncSettings(%u, %u, %f, %f)",
1368 mConnId, sync->mSource, sync->mAudioAdjustMode, sync->mTolerance, *videoFps);
1369 } else {
1370 ALOGV("[%d] getSyncSettings returned %d", mConnId, ret);
1371 }
1372 return ret;
1373 }
1374
getCurrentPosition(int * msec)1375 status_t MediaPlayerService::Client::getCurrentPosition(int *msec)
1376 {
1377 ALOGV("getCurrentPosition");
1378 sp<MediaPlayerBase> p = getPlayer();
1379 if (p == 0) return UNKNOWN_ERROR;
1380 status_t ret = p->getCurrentPosition(msec);
1381 if (ret == NO_ERROR) {
1382 ALOGV("[%d] getCurrentPosition = %d", mConnId, *msec);
1383 } else {
1384 ALOGE("getCurrentPosition returned %d", ret);
1385 }
1386 return ret;
1387 }
1388
getDuration(int * msec)1389 status_t MediaPlayerService::Client::getDuration(int *msec)
1390 {
1391 ALOGV("getDuration");
1392 sp<MediaPlayerBase> p = getPlayer();
1393 if (p == 0) return UNKNOWN_ERROR;
1394 status_t ret = p->getDuration(msec);
1395 if (ret == NO_ERROR) {
1396 ALOGV("[%d] getDuration = %d", mConnId, *msec);
1397 } else {
1398 ALOGE("getDuration returned %d", ret);
1399 }
1400 return ret;
1401 }
1402
setNextPlayer(const sp<IMediaPlayer> & player)1403 status_t MediaPlayerService::Client::setNextPlayer(const sp<IMediaPlayer>& player) {
1404 ALOGV("setNextPlayer");
1405 Mutex::Autolock l(mLock);
1406 sp<Client> c = static_cast<Client*>(player.get());
1407 if (c != NULL && !mService->hasClient(c)) {
1408 return BAD_VALUE;
1409 }
1410
1411 mNextClient = c;
1412
1413 if (c != NULL) {
1414 if (mAudioOutput != NULL) {
1415 mAudioOutput->setNextOutput(c->mAudioOutput);
1416 } else if ((mPlayer != NULL) && !mPlayer->hardwareOutput()) {
1417 ALOGE("no current audio output");
1418 }
1419
1420 if ((mPlayer != NULL) && (mNextClient->getPlayer() != NULL)) {
1421 mPlayer->setNextPlayer(mNextClient->getPlayer());
1422 }
1423 }
1424
1425 return OK;
1426 }
1427
applyVolumeShaper(const sp<VolumeShaper::Configuration> & configuration,const sp<VolumeShaper::Operation> & operation)1428 VolumeShaper::Status MediaPlayerService::Client::applyVolumeShaper(
1429 const sp<VolumeShaper::Configuration>& configuration,
1430 const sp<VolumeShaper::Operation>& operation) {
1431 // for hardware output, call player instead
1432 ALOGV("Client::applyVolumeShaper(%p)", this);
1433 sp<MediaPlayerBase> p = getPlayer();
1434 {
1435 Mutex::Autolock l(mLock);
1436 if (p != 0 && p->hardwareOutput()) {
1437 // TODO: investigate internal implementation
1438 return VolumeShaper::Status(INVALID_OPERATION);
1439 }
1440 if (mAudioOutput.get() != nullptr) {
1441 return mAudioOutput->applyVolumeShaper(configuration, operation);
1442 }
1443 }
1444 return VolumeShaper::Status(INVALID_OPERATION);
1445 }
1446
getVolumeShaperState(int id)1447 sp<VolumeShaper::State> MediaPlayerService::Client::getVolumeShaperState(int id) {
1448 // for hardware output, call player instead
1449 ALOGV("Client::getVolumeShaperState(%p)", this);
1450 sp<MediaPlayerBase> p = getPlayer();
1451 {
1452 Mutex::Autolock l(mLock);
1453 if (p != 0 && p->hardwareOutput()) {
1454 // TODO: investigate internal implementation.
1455 return nullptr;
1456 }
1457 if (mAudioOutput.get() != nullptr) {
1458 return mAudioOutput->getVolumeShaperState(id);
1459 }
1460 }
1461 return nullptr;
1462 }
1463
seekTo(int msec,MediaPlayerSeekMode mode)1464 status_t MediaPlayerService::Client::seekTo(int msec, MediaPlayerSeekMode mode)
1465 {
1466 ALOGV("[%d] seekTo(%d, %d)", mConnId, msec, mode);
1467 sp<MediaPlayerBase> p = getPlayer();
1468 if (p == 0) return UNKNOWN_ERROR;
1469 return p->seekTo(msec, mode);
1470 }
1471
reset()1472 status_t MediaPlayerService::Client::reset()
1473 {
1474 ALOGV("[%d] reset", mConnId);
1475 mRetransmitEndpointValid = false;
1476 sp<MediaPlayerBase> p = getPlayer();
1477 if (p == 0) return UNKNOWN_ERROR;
1478 return p->reset();
1479 }
1480
notifyAt(int64_t mediaTimeUs)1481 status_t MediaPlayerService::Client::notifyAt(int64_t mediaTimeUs)
1482 {
1483 ALOGV("[%d] notifyAt(%lld)", mConnId, (long long)mediaTimeUs);
1484 sp<MediaPlayerBase> p = getPlayer();
1485 if (p == 0) return UNKNOWN_ERROR;
1486 return p->notifyAt(mediaTimeUs);
1487 }
1488
setAudioStreamType(audio_stream_type_t type)1489 status_t MediaPlayerService::Client::setAudioStreamType(audio_stream_type_t type)
1490 {
1491 ALOGV("[%d] setAudioStreamType(%d)", mConnId, type);
1492 // TODO: for hardware output, call player instead
1493 Mutex::Autolock l(mLock);
1494 if (mAudioOutput != 0) mAudioOutput->setAudioStreamType(type);
1495 return NO_ERROR;
1496 }
1497
setAudioAttributes_l(const Parcel & parcel)1498 status_t MediaPlayerService::Client::setAudioAttributes_l(const Parcel &parcel)
1499 {
1500 if (mAudioAttributes != NULL) { free(mAudioAttributes); }
1501 mAudioAttributes = (audio_attributes_t *) calloc(1, sizeof(audio_attributes_t));
1502 if (mAudioAttributes == NULL) {
1503 return NO_MEMORY;
1504 }
1505 unmarshallAudioAttributes(parcel, mAudioAttributes);
1506
1507 ALOGV("setAudioAttributes_l() usage=%d content=%d flags=0x%x tags=%s",
1508 mAudioAttributes->usage, mAudioAttributes->content_type, mAudioAttributes->flags,
1509 mAudioAttributes->tags);
1510
1511 if (mAudioOutput != 0) {
1512 mAudioOutput->setAudioAttributes(mAudioAttributes);
1513 }
1514 return NO_ERROR;
1515 }
1516
setLooping(int loop)1517 status_t MediaPlayerService::Client::setLooping(int loop)
1518 {
1519 ALOGV("[%d] setLooping(%d)", mConnId, loop);
1520 mLoop = loop;
1521 sp<MediaPlayerBase> p = getPlayer();
1522 if (p != 0) return p->setLooping(loop);
1523 return NO_ERROR;
1524 }
1525
setVolume(float leftVolume,float rightVolume)1526 status_t MediaPlayerService::Client::setVolume(float leftVolume, float rightVolume)
1527 {
1528 ALOGV("[%d] setVolume(%f, %f)", mConnId, leftVolume, rightVolume);
1529
1530 // for hardware output, call player instead
1531 sp<MediaPlayerBase> p = getPlayer();
1532 {
1533 Mutex::Autolock l(mLock);
1534 if (p != 0 && p->hardwareOutput()) {
1535 MediaPlayerHWInterface* hwp =
1536 reinterpret_cast<MediaPlayerHWInterface*>(p.get());
1537 return hwp->setVolume(leftVolume, rightVolume);
1538 } else {
1539 if (mAudioOutput != 0) mAudioOutput->setVolume(leftVolume, rightVolume);
1540 return NO_ERROR;
1541 }
1542 }
1543
1544 return NO_ERROR;
1545 }
1546
setAuxEffectSendLevel(float level)1547 status_t MediaPlayerService::Client::setAuxEffectSendLevel(float level)
1548 {
1549 ALOGV("[%d] setAuxEffectSendLevel(%f)", mConnId, level);
1550 Mutex::Autolock l(mLock);
1551 if (mAudioOutput != 0) return mAudioOutput->setAuxEffectSendLevel(level);
1552 return NO_ERROR;
1553 }
1554
attachAuxEffect(int effectId)1555 status_t MediaPlayerService::Client::attachAuxEffect(int effectId)
1556 {
1557 ALOGV("[%d] attachAuxEffect(%d)", mConnId, effectId);
1558 Mutex::Autolock l(mLock);
1559 if (mAudioOutput != 0) return mAudioOutput->attachAuxEffect(effectId);
1560 return NO_ERROR;
1561 }
1562
setParameter(int key,const Parcel & request)1563 status_t MediaPlayerService::Client::setParameter(int key, const Parcel &request) {
1564 ALOGV("[%d] setParameter(%d)", mConnId, key);
1565 switch (key) {
1566 case KEY_PARAMETER_AUDIO_ATTRIBUTES:
1567 {
1568 Mutex::Autolock l(mLock);
1569 return setAudioAttributes_l(request);
1570 }
1571 default:
1572 sp<MediaPlayerBase> p = getPlayer();
1573 if (p == 0) { return UNKNOWN_ERROR; }
1574 return p->setParameter(key, request);
1575 }
1576 }
1577
getParameter(int key,Parcel * reply)1578 status_t MediaPlayerService::Client::getParameter(int key, Parcel *reply) {
1579 ALOGV("[%d] getParameter(%d)", mConnId, key);
1580 sp<MediaPlayerBase> p = getPlayer();
1581 if (p == 0) return UNKNOWN_ERROR;
1582 return p->getParameter(key, reply);
1583 }
1584
setRetransmitEndpoint(const struct sockaddr_in * endpoint)1585 status_t MediaPlayerService::Client::setRetransmitEndpoint(
1586 const struct sockaddr_in* endpoint) {
1587
1588 if (NULL != endpoint) {
1589 uint32_t a = ntohl(endpoint->sin_addr.s_addr);
1590 uint16_t p = ntohs(endpoint->sin_port);
1591 ALOGV("[%d] setRetransmitEndpoint(%u.%u.%u.%u:%hu)", mConnId,
1592 (a >> 24), (a >> 16) & 0xFF, (a >> 8) & 0xFF, (a & 0xFF), p);
1593 } else {
1594 ALOGV("[%d] setRetransmitEndpoint = <none>", mConnId);
1595 }
1596
1597 sp<MediaPlayerBase> p = getPlayer();
1598
1599 // Right now, the only valid time to set a retransmit endpoint is before
1600 // player selection has been made (since the presence or absence of a
1601 // retransmit endpoint is going to determine which player is selected during
1602 // setDataSource).
1603 if (p != 0) return INVALID_OPERATION;
1604
1605 if (NULL != endpoint) {
1606 Mutex::Autolock lock(mLock);
1607 mRetransmitEndpoint = *endpoint;
1608 mRetransmitEndpointValid = true;
1609 } else {
1610 Mutex::Autolock lock(mLock);
1611 mRetransmitEndpointValid = false;
1612 }
1613
1614 return NO_ERROR;
1615 }
1616
getRetransmitEndpoint(struct sockaddr_in * endpoint)1617 status_t MediaPlayerService::Client::getRetransmitEndpoint(
1618 struct sockaddr_in* endpoint)
1619 {
1620 if (NULL == endpoint)
1621 return BAD_VALUE;
1622
1623 sp<MediaPlayerBase> p = getPlayer();
1624
1625 if (p != NULL)
1626 return p->getRetransmitEndpoint(endpoint);
1627
1628 Mutex::Autolock lock(mLock);
1629 if (!mRetransmitEndpointValid)
1630 return NO_INIT;
1631
1632 *endpoint = mRetransmitEndpoint;
1633
1634 return NO_ERROR;
1635 }
1636
notify(int msg,int ext1,int ext2,const Parcel * obj)1637 void MediaPlayerService::Client::notify(
1638 int msg, int ext1, int ext2, const Parcel *obj)
1639 {
1640 sp<IMediaPlayerClient> c;
1641 sp<Client> nextClient;
1642 status_t errStartNext = NO_ERROR;
1643 {
1644 Mutex::Autolock l(mLock);
1645 c = mClient;
1646 if (msg == MEDIA_PLAYBACK_COMPLETE && mNextClient != NULL) {
1647 nextClient = mNextClient;
1648
1649 if (mAudioOutput != NULL)
1650 mAudioOutput->switchToNextOutput();
1651
1652 errStartNext = nextClient->start();
1653 }
1654 }
1655
1656 if (nextClient != NULL) {
1657 sp<IMediaPlayerClient> nc;
1658 {
1659 Mutex::Autolock l(nextClient->mLock);
1660 nc = nextClient->mClient;
1661 }
1662 if (nc != NULL) {
1663 if (errStartNext == NO_ERROR) {
1664 nc->notify(MEDIA_INFO, MEDIA_INFO_STARTED_AS_NEXT, 0, obj);
1665 } else {
1666 nc->notify(MEDIA_ERROR, MEDIA_ERROR_UNKNOWN , 0, obj);
1667 ALOGE("gapless:start playback for next track failed, err(%d)", errStartNext);
1668 }
1669 }
1670 }
1671
1672 if (MEDIA_INFO == msg &&
1673 MEDIA_INFO_METADATA_UPDATE == ext1) {
1674 const media::Metadata::Type metadata_type = ext2;
1675
1676 if(shouldDropMetadata(metadata_type)) {
1677 return;
1678 }
1679
1680 // Update the list of metadata that have changed. getMetadata
1681 // also access mMetadataUpdated and clears it.
1682 addNewMetadataUpdate(metadata_type);
1683 }
1684
1685 if (c != NULL) {
1686 ALOGV("[%d] notify (%d, %d, %d)", mConnId, msg, ext1, ext2);
1687 c->notify(msg, ext1, ext2, obj);
1688 }
1689 }
1690
1691
shouldDropMetadata(media::Metadata::Type code) const1692 bool MediaPlayerService::Client::shouldDropMetadata(media::Metadata::Type code) const
1693 {
1694 Mutex::Autolock lock(mLock);
1695
1696 if (findMetadata(mMetadataDrop, code)) {
1697 return true;
1698 }
1699
1700 if (mMetadataAllow.isEmpty() || findMetadata(mMetadataAllow, code)) {
1701 return false;
1702 } else {
1703 return true;
1704 }
1705 }
1706
1707
addNewMetadataUpdate(media::Metadata::Type metadata_type)1708 void MediaPlayerService::Client::addNewMetadataUpdate(media::Metadata::Type metadata_type) {
1709 Mutex::Autolock lock(mLock);
1710 if (mMetadataUpdated.indexOf(metadata_type) < 0) {
1711 mMetadataUpdated.add(metadata_type);
1712 }
1713 }
1714
1715 // Modular DRM
prepareDrm(const uint8_t uuid[16],const Vector<uint8_t> & drmSessionId)1716 status_t MediaPlayerService::Client::prepareDrm(const uint8_t uuid[16],
1717 const Vector<uint8_t>& drmSessionId)
1718 {
1719 ALOGV("[%d] prepareDrm", mConnId);
1720 sp<MediaPlayerBase> p = getPlayer();
1721 if (p == 0) return UNKNOWN_ERROR;
1722
1723 status_t ret = p->prepareDrm(uuid, drmSessionId);
1724 ALOGV("prepareDrm ret: %d", ret);
1725
1726 return ret;
1727 }
1728
releaseDrm()1729 status_t MediaPlayerService::Client::releaseDrm()
1730 {
1731 ALOGV("[%d] releaseDrm", mConnId);
1732 sp<MediaPlayerBase> p = getPlayer();
1733 if (p == 0) return UNKNOWN_ERROR;
1734
1735 status_t ret = p->releaseDrm();
1736 ALOGV("releaseDrm ret: %d", ret);
1737
1738 return ret;
1739 }
1740
setOutputDevice(audio_port_handle_t deviceId)1741 status_t MediaPlayerService::Client::setOutputDevice(audio_port_handle_t deviceId)
1742 {
1743 ALOGV("[%d] setOutputDevice", mConnId);
1744 {
1745 Mutex::Autolock l(mLock);
1746 if (mAudioOutput.get() != nullptr) {
1747 return mAudioOutput->setOutputDevice(deviceId);
1748 }
1749 }
1750 return NO_INIT;
1751 }
1752
getRoutedDeviceId(audio_port_handle_t * deviceId)1753 status_t MediaPlayerService::Client::getRoutedDeviceId(audio_port_handle_t* deviceId)
1754 {
1755 ALOGV("[%d] getRoutedDeviceId", mConnId);
1756 {
1757 Mutex::Autolock l(mLock);
1758 if (mAudioOutput.get() != nullptr) {
1759 return mAudioOutput->getRoutedDeviceId(deviceId);
1760 }
1761 }
1762 return NO_INIT;
1763 }
1764
enableAudioDeviceCallback(bool enabled)1765 status_t MediaPlayerService::Client::enableAudioDeviceCallback(bool enabled)
1766 {
1767 ALOGV("[%d] enableAudioDeviceCallback, %d", mConnId, enabled);
1768 {
1769 Mutex::Autolock l(mLock);
1770 if (mAudioOutput.get() != nullptr) {
1771 return mAudioOutput->enableAudioDeviceCallback(enabled);
1772 }
1773 }
1774 return NO_INIT;
1775 }
1776
1777 #if CALLBACK_ANTAGONIZER
1778 const int Antagonizer::interval = 10000; // 10 msecs
1779
Antagonizer(const sp<MediaPlayerBase::Listener> & listener)1780 Antagonizer::Antagonizer(const sp<MediaPlayerBase::Listener> &listener) :
1781 mExit(false), mActive(false), mListener(listener)
1782 {
1783 createThread(callbackThread, this);
1784 }
1785
kill()1786 void Antagonizer::kill()
1787 {
1788 Mutex::Autolock _l(mLock);
1789 mActive = false;
1790 mExit = true;
1791 mCondition.wait(mLock);
1792 }
1793
callbackThread(void * user)1794 int Antagonizer::callbackThread(void* user)
1795 {
1796 ALOGD("Antagonizer started");
1797 Antagonizer* p = reinterpret_cast<Antagonizer*>(user);
1798 while (!p->mExit) {
1799 if (p->mActive) {
1800 ALOGV("send event");
1801 p->mListener->notify(0, 0, 0, 0);
1802 }
1803 usleep(interval);
1804 }
1805 Mutex::Autolock _l(p->mLock);
1806 p->mCondition.signal();
1807 ALOGD("Antagonizer stopped");
1808 return 0;
1809 }
1810 #endif
1811
1812 #undef LOG_TAG
1813 #define LOG_TAG "AudioSink"
AudioOutput(audio_session_t sessionId,const AttributionSourceState & attributionSource,const audio_attributes_t * attr,const sp<AudioSystem::AudioDeviceCallback> & deviceCallback)1814 MediaPlayerService::AudioOutput::AudioOutput(audio_session_t sessionId,
1815 const AttributionSourceState& attributionSource, const audio_attributes_t* attr,
1816 const sp<AudioSystem::AudioDeviceCallback>& deviceCallback)
1817 : mCachedPlayerIId(PLAYER_PIID_INVALID),
1818 mCallback(NULL),
1819 mCallbackCookie(NULL),
1820 mCallbackData(NULL),
1821 mStreamType(AUDIO_STREAM_MUSIC),
1822 mLeftVolume(1.0),
1823 mRightVolume(1.0),
1824 mPlaybackRate(AUDIO_PLAYBACK_RATE_DEFAULT),
1825 mSampleRateHz(0),
1826 mMsecsPerFrame(0),
1827 mFrameSize(0),
1828 mSessionId(sessionId),
1829 mAttributionSource(attributionSource),
1830 mSendLevel(0.0),
1831 mAuxEffectId(0),
1832 mFlags(AUDIO_OUTPUT_FLAG_NONE),
1833 mVolumeHandler(new media::VolumeHandler()),
1834 mSelectedDeviceId(AUDIO_PORT_HANDLE_NONE),
1835 mRoutedDeviceId(AUDIO_PORT_HANDLE_NONE),
1836 mDeviceCallbackEnabled(false),
1837 mDeviceCallback(deviceCallback)
1838 {
1839 ALOGV("AudioOutput(%d)", sessionId);
1840 if (attr != NULL) {
1841 mAttributes = (audio_attributes_t *) calloc(1, sizeof(audio_attributes_t));
1842 if (mAttributes != NULL) {
1843 memcpy(mAttributes, attr, sizeof(audio_attributes_t));
1844 mStreamType = AudioSystem::attributesToStreamType(*attr);
1845 }
1846 } else {
1847 mAttributes = NULL;
1848 }
1849 setMinBufferCount();
1850 }
1851
~AudioOutput()1852 MediaPlayerService::AudioOutput::~AudioOutput()
1853 {
1854 close();
1855 free(mAttributes);
1856 }
1857
1858 //static
setMinBufferCount()1859 void MediaPlayerService::AudioOutput::setMinBufferCount()
1860 {
1861 if (property_get_bool("ro.boot.qemu", false)) {
1862 mIsOnEmulator = true;
1863 mMinBufferCount = 12; // to prevent systematic buffer underrun for emulator
1864 }
1865 }
1866
1867 // static
isOnEmulator()1868 bool MediaPlayerService::AudioOutput::isOnEmulator()
1869 {
1870 setMinBufferCount(); // benign race wrt other threads
1871 return mIsOnEmulator;
1872 }
1873
1874 // static
getMinBufferCount()1875 int MediaPlayerService::AudioOutput::getMinBufferCount()
1876 {
1877 setMinBufferCount(); // benign race wrt other threads
1878 return mMinBufferCount;
1879 }
1880
bufferSize() const1881 ssize_t MediaPlayerService::AudioOutput::bufferSize() const
1882 {
1883 Mutex::Autolock lock(mLock);
1884 if (mTrack == 0) return NO_INIT;
1885 return mTrack->frameCount() * mFrameSize;
1886 }
1887
frameCount() const1888 ssize_t MediaPlayerService::AudioOutput::frameCount() const
1889 {
1890 Mutex::Autolock lock(mLock);
1891 if (mTrack == 0) return NO_INIT;
1892 return mTrack->frameCount();
1893 }
1894
channelCount() const1895 ssize_t MediaPlayerService::AudioOutput::channelCount() const
1896 {
1897 Mutex::Autolock lock(mLock);
1898 if (mTrack == 0) return NO_INIT;
1899 return mTrack->channelCount();
1900 }
1901
frameSize() const1902 ssize_t MediaPlayerService::AudioOutput::frameSize() const
1903 {
1904 Mutex::Autolock lock(mLock);
1905 if (mTrack == 0) return NO_INIT;
1906 return mFrameSize;
1907 }
1908
latency() const1909 uint32_t MediaPlayerService::AudioOutput::latency () const
1910 {
1911 Mutex::Autolock lock(mLock);
1912 if (mTrack == 0) return 0;
1913 return mTrack->latency();
1914 }
1915
msecsPerFrame() const1916 float MediaPlayerService::AudioOutput::msecsPerFrame() const
1917 {
1918 Mutex::Autolock lock(mLock);
1919 return mMsecsPerFrame;
1920 }
1921
getPosition(uint32_t * position) const1922 status_t MediaPlayerService::AudioOutput::getPosition(uint32_t *position) const
1923 {
1924 Mutex::Autolock lock(mLock);
1925 if (mTrack == 0) return NO_INIT;
1926 return mTrack->getPosition(position);
1927 }
1928
getTimestamp(AudioTimestamp & ts) const1929 status_t MediaPlayerService::AudioOutput::getTimestamp(AudioTimestamp &ts) const
1930 {
1931 Mutex::Autolock lock(mLock);
1932 if (mTrack == 0) return NO_INIT;
1933 return mTrack->getTimestamp(ts);
1934 }
1935
1936 // TODO: Remove unnecessary calls to getPlayedOutDurationUs()
1937 // as it acquires locks and may query the audio driver.
1938 //
1939 // Some calls could conceivably retrieve extrapolated data instead of
1940 // accessing getTimestamp() or getPosition() every time a data buffer with
1941 // a media time is received.
1942 //
1943 // Calculate duration of played samples if played at normal rate (i.e., 1.0).
getPlayedOutDurationUs(int64_t nowUs) const1944 int64_t MediaPlayerService::AudioOutput::getPlayedOutDurationUs(int64_t nowUs) const
1945 {
1946 Mutex::Autolock lock(mLock);
1947 if (mTrack == 0 || mSampleRateHz == 0) {
1948 return 0;
1949 }
1950
1951 uint32_t numFramesPlayed;
1952 int64_t numFramesPlayedAtUs;
1953 AudioTimestamp ts;
1954
1955 status_t res = mTrack->getTimestamp(ts);
1956 if (res == OK) { // case 1: mixing audio tracks and offloaded tracks.
1957 numFramesPlayed = ts.mPosition;
1958 numFramesPlayedAtUs = ts.mTime.tv_sec * 1000000LL + ts.mTime.tv_nsec / 1000;
1959 //ALOGD("getTimestamp: OK %d %lld", numFramesPlayed, (long long)numFramesPlayedAtUs);
1960 } else if (res == WOULD_BLOCK) { // case 2: transitory state on start of a new track
1961 numFramesPlayed = 0;
1962 numFramesPlayedAtUs = nowUs;
1963 //ALOGD("getTimestamp: WOULD_BLOCK %d %lld",
1964 // numFramesPlayed, (long long)numFramesPlayedAtUs);
1965 } else { // case 3: transitory at new track or audio fast tracks.
1966 res = mTrack->getPosition(&numFramesPlayed);
1967 CHECK_EQ(res, (status_t)OK);
1968 numFramesPlayedAtUs = nowUs;
1969 numFramesPlayedAtUs += 1000LL * mTrack->latency() / 2; /* XXX */
1970 //ALOGD("getPosition: %u %lld", numFramesPlayed, (long long)numFramesPlayedAtUs);
1971 }
1972
1973 // CHECK_EQ(numFramesPlayed & (1 << 31), 0); // can't be negative until 12.4 hrs, test
1974 // TODO: remove the (int32_t) casting below as it may overflow at 12.4 hours.
1975 int64_t durationUs = (int64_t)((int32_t)numFramesPlayed * 1000000LL / mSampleRateHz)
1976 + nowUs - numFramesPlayedAtUs;
1977 if (durationUs < 0) {
1978 // Occurs when numFramesPlayed position is very small and the following:
1979 // (1) In case 1, the time nowUs is computed before getTimestamp() is called and
1980 // numFramesPlayedAtUs is greater than nowUs by time more than numFramesPlayed.
1981 // (2) In case 3, using getPosition and adding mAudioSink->latency() to
1982 // numFramesPlayedAtUs, by a time amount greater than numFramesPlayed.
1983 //
1984 // Both of these are transitory conditions.
1985 ALOGV("getPlayedOutDurationUs: negative duration %lld set to zero", (long long)durationUs);
1986 durationUs = 0;
1987 }
1988 ALOGV("getPlayedOutDurationUs(%lld) nowUs(%lld) frames(%u) framesAt(%lld)",
1989 (long long)durationUs, (long long)nowUs,
1990 numFramesPlayed, (long long)numFramesPlayedAtUs);
1991 return durationUs;
1992 }
1993
getFramesWritten(uint32_t * frameswritten) const1994 status_t MediaPlayerService::AudioOutput::getFramesWritten(uint32_t *frameswritten) const
1995 {
1996 Mutex::Autolock lock(mLock);
1997 if (mTrack == 0) return NO_INIT;
1998 ExtendedTimestamp ets;
1999 status_t status = mTrack->getTimestamp(&ets);
2000 if (status == OK || status == WOULD_BLOCK) {
2001 *frameswritten = (uint32_t)ets.mPosition[ExtendedTimestamp::LOCATION_CLIENT];
2002 }
2003 return status;
2004 }
2005
setParameters(const String8 & keyValuePairs)2006 status_t MediaPlayerService::AudioOutput::setParameters(const String8& keyValuePairs)
2007 {
2008 Mutex::Autolock lock(mLock);
2009 if (mTrack == 0) return NO_INIT;
2010 return mTrack->setParameters(keyValuePairs);
2011 }
2012
getParameters(const String8 & keys)2013 String8 MediaPlayerService::AudioOutput::getParameters(const String8& keys)
2014 {
2015 Mutex::Autolock lock(mLock);
2016 if (mTrack == 0) return String8();
2017 return mTrack->getParameters(keys);
2018 }
2019
setAudioAttributes(const audio_attributes_t * attributes)2020 void MediaPlayerService::AudioOutput::setAudioAttributes(const audio_attributes_t * attributes) {
2021 Mutex::Autolock lock(mLock);
2022 if (attributes == NULL) {
2023 free(mAttributes);
2024 mAttributes = NULL;
2025 } else {
2026 if (mAttributes == NULL) {
2027 mAttributes = (audio_attributes_t *) calloc(1, sizeof(audio_attributes_t));
2028 }
2029 memcpy(mAttributes, attributes, sizeof(audio_attributes_t));
2030 mStreamType = AudioSystem::attributesToStreamType(*attributes);
2031 }
2032 }
2033
setAudioStreamType(audio_stream_type_t streamType)2034 void MediaPlayerService::AudioOutput::setAudioStreamType(audio_stream_type_t streamType)
2035 {
2036 Mutex::Autolock lock(mLock);
2037 // do not allow direct stream type modification if attributes have been set
2038 if (mAttributes == NULL) {
2039 mStreamType = streamType;
2040 }
2041 }
2042
deleteRecycledTrack_l()2043 void MediaPlayerService::AudioOutput::deleteRecycledTrack_l()
2044 {
2045 ALOGV("deleteRecycledTrack_l");
2046 if (mRecycledTrack != 0) {
2047
2048 if (mCallbackData != NULL) {
2049 mCallbackData->setOutput(NULL);
2050 mCallbackData->endTrackSwitch();
2051 }
2052
2053 if ((mRecycledTrack->getFlags() & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) == 0) {
2054 int32_t msec = 0;
2055 if (!mRecycledTrack->stopped()) { // check if active
2056 (void)mRecycledTrack->pendingDuration(&msec);
2057 }
2058 mRecycledTrack->stop(); // ensure full data drain
2059 ALOGD("deleting recycled track, waiting for data drain (%d msec)", msec);
2060 if (msec > 0) {
2061 static const int32_t WAIT_LIMIT_MS = 3000;
2062 if (msec > WAIT_LIMIT_MS) {
2063 msec = WAIT_LIMIT_MS;
2064 }
2065 usleep(msec * 1000LL);
2066 }
2067 }
2068 // An offloaded track isn't flushed because the STREAM_END is reported
2069 // slightly prematurely to allow time for the gapless track switch
2070 // but this means that if we decide not to recycle the track there
2071 // could be a small amount of residual data still playing. We leave
2072 // AudioFlinger to drain the track.
2073
2074 mRecycledTrack.clear();
2075 close_l();
2076 mCallbackData.clear();
2077 }
2078 }
2079
close_l()2080 void MediaPlayerService::AudioOutput::close_l()
2081 {
2082 mTrack.clear();
2083 }
2084
open(uint32_t sampleRate,int channelCount,audio_channel_mask_t channelMask,audio_format_t format,int bufferCount,AudioCallback cb,void * cookie,audio_output_flags_t flags,const audio_offload_info_t * offloadInfo,bool doNotReconnect,uint32_t suggestedFrameCount)2085 status_t MediaPlayerService::AudioOutput::open(
2086 uint32_t sampleRate, int channelCount, audio_channel_mask_t channelMask,
2087 audio_format_t format, int bufferCount,
2088 AudioCallback cb, void *cookie,
2089 audio_output_flags_t flags,
2090 const audio_offload_info_t *offloadInfo,
2091 bool doNotReconnect,
2092 uint32_t suggestedFrameCount)
2093 {
2094 ALOGV("open(%u, %d, 0x%x, 0x%x, %d, %d 0x%x)", sampleRate, channelCount, channelMask,
2095 format, bufferCount, mSessionId, flags);
2096
2097 // offloading is only supported in callback mode for now.
2098 // offloadInfo must be present if offload flag is set
2099 if (((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) &&
2100 ((cb == NULL) || (offloadInfo == NULL))) {
2101 return BAD_VALUE;
2102 }
2103
2104 // compute frame count for the AudioTrack internal buffer
2105 size_t frameCount;
2106 if ((flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0) {
2107 frameCount = 0; // AudioTrack will get frame count from AudioFlinger
2108 } else {
2109 // try to estimate the buffer processing fetch size from AudioFlinger.
2110 // framesPerBuffer is approximate and generally correct, except when it's not :-).
2111 uint32_t afSampleRate;
2112 size_t afFrameCount;
2113 if (AudioSystem::getOutputFrameCount(&afFrameCount, mStreamType) != NO_ERROR) {
2114 return NO_INIT;
2115 }
2116 if (AudioSystem::getOutputSamplingRate(&afSampleRate, mStreamType) != NO_ERROR) {
2117 return NO_INIT;
2118 }
2119 if (afSampleRate == 0) {
2120 return NO_INIT;
2121 }
2122 const size_t framesPerBuffer =
2123 (unsigned long long)sampleRate * afFrameCount / afSampleRate;
2124
2125 if (bufferCount == 0) {
2126 if (framesPerBuffer == 0) {
2127 return NO_INIT;
2128 }
2129 // use suggestedFrameCount
2130 bufferCount = (suggestedFrameCount + framesPerBuffer - 1) / framesPerBuffer;
2131 }
2132 // Check argument bufferCount against the mininum buffer count
2133 if (bufferCount != 0 && bufferCount < mMinBufferCount) {
2134 ALOGV("bufferCount (%d) increased to %d", bufferCount, mMinBufferCount);
2135 bufferCount = mMinBufferCount;
2136 }
2137 // if frameCount is 0, then AudioTrack will get frame count from AudioFlinger
2138 // which will be the minimum size permitted.
2139 frameCount = bufferCount * framesPerBuffer;
2140 }
2141
2142 if (channelMask == CHANNEL_MASK_USE_CHANNEL_ORDER) {
2143 channelMask = audio_channel_out_mask_from_count(channelCount);
2144 if (0 == channelMask) {
2145 ALOGE("open() error, can\'t derive mask for %d audio channels", channelCount);
2146 return NO_INIT;
2147 }
2148 }
2149
2150 Mutex::Autolock lock(mLock);
2151 mCallback = cb;
2152 mCallbackCookie = cookie;
2153
2154 // Check whether we can recycle the track
2155 bool reuse = false;
2156 bool bothOffloaded = false;
2157
2158 if (mRecycledTrack != 0) {
2159 // check whether we are switching between two offloaded tracks
2160 bothOffloaded = (flags & mRecycledTrack->getFlags()
2161 & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0;
2162
2163 // check if the existing track can be reused as-is, or if a new track needs to be created.
2164 reuse = true;
2165
2166 if ((mCallbackData == NULL && mCallback != NULL) ||
2167 (mCallbackData != NULL && mCallback == NULL)) {
2168 // recycled track uses callbacks but the caller wants to use writes, or vice versa
2169 ALOGV("can't chain callback and write");
2170 reuse = false;
2171 } else if ((mRecycledTrack->getSampleRate() != sampleRate) ||
2172 (mRecycledTrack->channelCount() != (uint32_t)channelCount) ) {
2173 ALOGV("samplerate, channelcount differ: %u/%u Hz, %u/%d ch",
2174 mRecycledTrack->getSampleRate(), sampleRate,
2175 mRecycledTrack->channelCount(), channelCount);
2176 reuse = false;
2177 } else if (flags != mFlags) {
2178 ALOGV("output flags differ %08x/%08x", flags, mFlags);
2179 reuse = false;
2180 } else if (mRecycledTrack->format() != format) {
2181 reuse = false;
2182 }
2183 } else {
2184 ALOGV("no track available to recycle");
2185 }
2186
2187 ALOGV_IF(bothOffloaded, "both tracks offloaded");
2188
2189 // If we can't recycle and both tracks are offloaded
2190 // we must close the previous output before opening a new one
2191 if (bothOffloaded && !reuse) {
2192 ALOGV("both offloaded and not recycling");
2193 deleteRecycledTrack_l();
2194 }
2195
2196 sp<AudioTrack> t;
2197 sp<CallbackData> newcbd;
2198
2199 // We don't attempt to create a new track if we are recycling an
2200 // offloaded track. But, if we are recycling a non-offloaded or we
2201 // are switching where one is offloaded and one isn't then we create
2202 // the new track in advance so that we can read additional stream info
2203
2204 if (!(reuse && bothOffloaded)) {
2205 ALOGV("creating new AudioTrack");
2206
2207 if (mCallback != nullptr) {
2208 newcbd = sp<CallbackData>::make(wp<AudioOutput>::fromExisting(this));
2209 t = new AudioTrack(
2210 mStreamType,
2211 sampleRate,
2212 format,
2213 channelMask,
2214 frameCount,
2215 flags,
2216 newcbd,
2217 0, // notification frames
2218 mSessionId,
2219 AudioTrack::TRANSFER_CALLBACK,
2220 offloadInfo,
2221 mAttributionSource,
2222 mAttributes,
2223 doNotReconnect,
2224 1.0f, // default value for maxRequiredSpeed
2225 mSelectedDeviceId);
2226 } else {
2227 // TODO: Due to buffer memory concerns, we use a max target playback speed
2228 // based on mPlaybackRate at the time of open (instead of kMaxRequiredSpeed),
2229 // also clamping the target speed to 1.0 <= targetSpeed <= kMaxRequiredSpeed.
2230 const float targetSpeed =
2231 std::min(std::max(mPlaybackRate.mSpeed, 1.0f), kMaxRequiredSpeed);
2232 ALOGW_IF(targetSpeed != mPlaybackRate.mSpeed,
2233 "track target speed:%f clamped from playback speed:%f",
2234 targetSpeed, mPlaybackRate.mSpeed);
2235 t = new AudioTrack(
2236 mStreamType,
2237 sampleRate,
2238 format,
2239 channelMask,
2240 frameCount,
2241 flags,
2242 nullptr, // callback
2243 0, // notification frames
2244 mSessionId,
2245 AudioTrack::TRANSFER_DEFAULT,
2246 NULL, // offload info
2247 mAttributionSource,
2248 mAttributes,
2249 doNotReconnect,
2250 targetSpeed,
2251 mSelectedDeviceId);
2252 }
2253 // Set caller name so it can be logged in destructor.
2254 // MediaMetricsConstants.h: AMEDIAMETRICS_PROP_CALLERNAME_VALUE_MEDIA
2255 t->setCallerName("media");
2256 if ((t == 0) || (t->initCheck() != NO_ERROR)) {
2257 ALOGE("Unable to create audio track");
2258 // t, newcbd goes out of scope, so reference count drops to zero
2259 return NO_INIT;
2260 } else {
2261 // successful AudioTrack initialization implies a legacy stream type was generated
2262 // from the audio attributes
2263 mStreamType = t->streamType();
2264 }
2265 }
2266
2267 if (reuse) {
2268 CHECK(mRecycledTrack != NULL);
2269
2270 if (!bothOffloaded) {
2271 if (mRecycledTrack->frameCount() != t->frameCount()) {
2272 ALOGV("framecount differs: %zu/%zu frames",
2273 mRecycledTrack->frameCount(), t->frameCount());
2274 reuse = false;
2275 }
2276 // If recycled and new tracks are not on the same output,
2277 // don't reuse the recycled one.
2278 if (mRecycledTrack->getOutput() != t->getOutput()) {
2279 ALOGV("output has changed, don't reuse track");
2280 reuse = false;
2281 }
2282 }
2283
2284 if (reuse) {
2285 ALOGV("chaining to next output and recycling track");
2286 close_l();
2287 mTrack = mRecycledTrack;
2288 mRecycledTrack.clear();
2289 if (mCallbackData != NULL) {
2290 mCallbackData->setOutput(this);
2291 }
2292 return updateTrack();
2293 }
2294 }
2295
2296 // we're not going to reuse the track, unblock and flush it
2297 // this was done earlier if both tracks are offloaded
2298 if (!bothOffloaded) {
2299 deleteRecycledTrack_l();
2300 }
2301
2302 CHECK((t != NULL) && ((mCallback == NULL) || (newcbd != NULL)));
2303
2304 mCallbackData = newcbd;
2305 ALOGV("setVolume");
2306 t->setVolume(mLeftVolume, mRightVolume);
2307
2308 // Restore VolumeShapers for the MediaPlayer in case the track was recreated
2309 // due to an output sink error (e.g. offload to non-offload switch).
2310 mVolumeHandler->forall([&t](const VolumeShaper &shaper) -> VolumeShaper::Status {
2311 sp<VolumeShaper::Operation> operationToEnd =
2312 new VolumeShaper::Operation(shaper.mOperation);
2313 // TODO: Ideally we would restore to the exact xOffset position
2314 // as returned by getVolumeShaperState(), but we don't have that
2315 // information when restoring at the client unless we periodically poll
2316 // the server or create shared memory state.
2317 //
2318 // For now, we simply advance to the end of the VolumeShaper effect
2319 // if it has been started.
2320 if (shaper.isStarted()) {
2321 operationToEnd->setNormalizedTime(1.f);
2322 }
2323 return t->applyVolumeShaper(shaper.mConfiguration, operationToEnd);
2324 });
2325
2326 if (mCachedPlayerIId != PLAYER_PIID_INVALID) {
2327 t->setPlayerIId(mCachedPlayerIId);
2328 }
2329
2330 mSampleRateHz = sampleRate;
2331 mFlags = flags;
2332 mMsecsPerFrame = 1E3f / (mPlaybackRate.mSpeed * sampleRate);
2333 mFrameSize = t->frameSize();
2334 mTrack = t;
2335
2336 return updateTrack();
2337 }
2338
updateTrack()2339 status_t MediaPlayerService::AudioOutput::updateTrack() {
2340 if (mTrack == NULL) {
2341 return NO_ERROR;
2342 }
2343
2344 status_t res = NO_ERROR;
2345 // Note some output devices may give us a direct track even though we don't specify it.
2346 // Example: Line application b/17459982.
2347 if ((mTrack->getFlags()
2348 & (AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD | AUDIO_OUTPUT_FLAG_DIRECT)) == 0) {
2349 res = mTrack->setPlaybackRate(mPlaybackRate);
2350 if (res == NO_ERROR) {
2351 mTrack->setAuxEffectSendLevel(mSendLevel);
2352 res = mTrack->attachAuxEffect(mAuxEffectId);
2353 }
2354 }
2355 mTrack->setOutputDevice(mSelectedDeviceId);
2356 if (mDeviceCallbackEnabled) {
2357 mTrack->addAudioDeviceCallback(mDeviceCallback.promote());
2358 }
2359 ALOGV("updateTrack() DONE status %d", res);
2360 return res;
2361 }
2362
start()2363 status_t MediaPlayerService::AudioOutput::start()
2364 {
2365 ALOGV("start");
2366 Mutex::Autolock lock(mLock);
2367 if (mCallbackData != NULL) {
2368 mCallbackData->endTrackSwitch();
2369 }
2370 if (mTrack != 0) {
2371 mTrack->setVolume(mLeftVolume, mRightVolume);
2372 mTrack->setAuxEffectSendLevel(mSendLevel);
2373 status_t status = mTrack->start();
2374 if (status == NO_ERROR) {
2375 mVolumeHandler->setStarted();
2376 }
2377 return status;
2378 }
2379 return NO_INIT;
2380 }
2381
setPlayerIId(int32_t playerIId)2382 void MediaPlayerService::AudioOutput::setPlayerIId(int32_t playerIId)
2383 {
2384 ALOGV("setPlayerIId(%d)", playerIId);
2385 Mutex::Autolock lock(mLock);
2386 mCachedPlayerIId = playerIId;
2387
2388 if (mTrack != nullptr) {
2389 mTrack->setPlayerIId(mCachedPlayerIId);
2390 }
2391 }
2392
setNextOutput(const sp<AudioOutput> & nextOutput)2393 void MediaPlayerService::AudioOutput::setNextOutput(const sp<AudioOutput>& nextOutput) {
2394 Mutex::Autolock lock(mLock);
2395 mNextOutput = nextOutput;
2396 }
2397
switchToNextOutput()2398 void MediaPlayerService::AudioOutput::switchToNextOutput() {
2399 ALOGV("switchToNextOutput");
2400
2401 // Try to acquire the callback lock before moving track (without incurring deadlock).
2402 const unsigned kMaxSwitchTries = 100;
2403 Mutex::Autolock lock(mLock);
2404 for (unsigned tries = 0;;) {
2405 if (mTrack == 0) {
2406 return;
2407 }
2408 if (mNextOutput != NULL && mNextOutput != this) {
2409 if (mCallbackData != NULL) {
2410 // two alternative approaches
2411 #if 1
2412 sp<CallbackData> callbackData = mCallbackData;
2413 mLock.unlock();
2414 // proper acquisition sequence
2415 callbackData->lock();
2416 mLock.lock();
2417 // Caution: it is unlikely that someone deleted our callback or changed our target
2418 if (callbackData != mCallbackData || mNextOutput == NULL || mNextOutput == this) {
2419 // fatal if we are starved out.
2420 LOG_ALWAYS_FATAL_IF(++tries > kMaxSwitchTries,
2421 "switchToNextOutput() cannot obtain correct lock sequence");
2422 callbackData->unlock();
2423 continue;
2424 }
2425 callbackData->mSwitching = true; // begin track switch
2426 callbackData->setOutput(NULL);
2427 #else
2428 // tryBeginTrackSwitch() returns false if the callback has the lock.
2429 if (!mCallbackData->tryBeginTrackSwitch()) {
2430 // fatal if we are starved out.
2431 LOG_ALWAYS_FATAL_IF(++tries > kMaxSwitchTries,
2432 "switchToNextOutput() cannot obtain callback lock");
2433 mLock.unlock();
2434 usleep(5 * 1000 /* usec */); // allow callback to use AudioOutput
2435 mLock.lock();
2436 continue;
2437 }
2438 #endif
2439 }
2440
2441 Mutex::Autolock nextLock(mNextOutput->mLock);
2442
2443 // If the next output track is not NULL, then it has been
2444 // opened already for playback.
2445 // This is possible even without the next player being started,
2446 // for example, the next player could be prepared and seeked.
2447 //
2448 // Presuming it isn't advisable to force the track over.
2449 if (mNextOutput->mTrack == nullptr) {
2450 ALOGD("Recycling track for gapless playback");
2451 mNextOutput->mCallbackData = mCallbackData;
2452 mNextOutput->mRecycledTrack = mTrack;
2453 mNextOutput->mSampleRateHz = mSampleRateHz;
2454 mNextOutput->mMsecsPerFrame = mMsecsPerFrame;
2455 mNextOutput->mFlags = mFlags;
2456 mNextOutput->mFrameSize = mFrameSize;
2457 close_l();
2458 mCallbackData.clear();
2459 } else {
2460 ALOGW("Ignoring gapless playback because next player has already started");
2461 // remove track in case resource needed for future players.
2462 if (mCallbackData != nullptr) {
2463 mCallbackData->endTrackSwitch(); // release lock for callbacks before close.
2464 }
2465 close_l();
2466 }
2467 }
2468 break;
2469 }
2470 }
2471
write(const void * buffer,size_t size,bool blocking)2472 ssize_t MediaPlayerService::AudioOutput::write(const void* buffer, size_t size, bool blocking)
2473 {
2474 Mutex::Autolock lock(mLock);
2475 LOG_ALWAYS_FATAL_IF(mCallback != NULL, "Don't call write if supplying a callback.");
2476
2477 //ALOGV("write(%p, %u)", buffer, size);
2478 if (mTrack != 0) {
2479 return mTrack->write(buffer, size, blocking);
2480 }
2481 return NO_INIT;
2482 }
2483
stop()2484 void MediaPlayerService::AudioOutput::stop()
2485 {
2486 ALOGV("stop");
2487 Mutex::Autolock lock(mLock);
2488 if (mTrack != 0) mTrack->stop();
2489 }
2490
flush()2491 void MediaPlayerService::AudioOutput::flush()
2492 {
2493 ALOGV("flush");
2494 Mutex::Autolock lock(mLock);
2495 if (mTrack != 0) mTrack->flush();
2496 }
2497
pause()2498 void MediaPlayerService::AudioOutput::pause()
2499 {
2500 ALOGV("pause");
2501 // We use pauseAndWait() instead of pause() to ensure tracks ramp to silence before
2502 // any flush. We choose 40 ms timeout to allow 1 deep buffer mixer period
2503 // to occur. Often waiting is 0 - 20 ms.
2504 using namespace std::chrono_literals;
2505 constexpr auto TIMEOUT_MS = 40ms;
2506 Mutex::Autolock lock(mLock);
2507 if (mTrack != 0) mTrack->pauseAndWait(TIMEOUT_MS);
2508 }
2509
close()2510 void MediaPlayerService::AudioOutput::close()
2511 {
2512 ALOGV("close");
2513 sp<AudioTrack> track;
2514 {
2515 Mutex::Autolock lock(mLock);
2516 track = mTrack;
2517 close_l(); // clears mTrack
2518 }
2519 // destruction of the track occurs outside of mutex.
2520 }
2521
setVolume(float left,float right)2522 void MediaPlayerService::AudioOutput::setVolume(float left, float right)
2523 {
2524 ALOGV("setVolume(%f, %f)", left, right);
2525 Mutex::Autolock lock(mLock);
2526 mLeftVolume = left;
2527 mRightVolume = right;
2528 if (mTrack != 0) {
2529 mTrack->setVolume(left, right);
2530 }
2531 }
2532
setPlaybackRate(const AudioPlaybackRate & rate)2533 status_t MediaPlayerService::AudioOutput::setPlaybackRate(const AudioPlaybackRate &rate)
2534 {
2535 ALOGV("setPlaybackRate(%f %f %d %d)",
2536 rate.mSpeed, rate.mPitch, rate.mFallbackMode, rate.mStretchMode);
2537 Mutex::Autolock lock(mLock);
2538 if (mTrack == 0) {
2539 // remember rate so that we can set it when the track is opened
2540 mPlaybackRate = rate;
2541 return OK;
2542 }
2543 status_t res = mTrack->setPlaybackRate(rate);
2544 if (res != NO_ERROR) {
2545 return res;
2546 }
2547 // rate.mSpeed is always greater than 0 if setPlaybackRate succeeded
2548 CHECK_GT(rate.mSpeed, 0.f);
2549 mPlaybackRate = rate;
2550 if (mSampleRateHz != 0) {
2551 mMsecsPerFrame = 1E3f / (rate.mSpeed * mSampleRateHz);
2552 }
2553 return res;
2554 }
2555
getPlaybackRate(AudioPlaybackRate * rate)2556 status_t MediaPlayerService::AudioOutput::getPlaybackRate(AudioPlaybackRate *rate)
2557 {
2558 ALOGV("setPlaybackRate");
2559 Mutex::Autolock lock(mLock);
2560 if (mTrack == 0) {
2561 return NO_INIT;
2562 }
2563 *rate = mTrack->getPlaybackRate();
2564 return NO_ERROR;
2565 }
2566
setAuxEffectSendLevel(float level)2567 status_t MediaPlayerService::AudioOutput::setAuxEffectSendLevel(float level)
2568 {
2569 ALOGV("setAuxEffectSendLevel(%f)", level);
2570 Mutex::Autolock lock(mLock);
2571 mSendLevel = level;
2572 if (mTrack != 0) {
2573 return mTrack->setAuxEffectSendLevel(level);
2574 }
2575 return NO_ERROR;
2576 }
2577
attachAuxEffect(int effectId)2578 status_t MediaPlayerService::AudioOutput::attachAuxEffect(int effectId)
2579 {
2580 ALOGV("attachAuxEffect(%d)", effectId);
2581 Mutex::Autolock lock(mLock);
2582 mAuxEffectId = effectId;
2583 if (mTrack != 0) {
2584 return mTrack->attachAuxEffect(effectId);
2585 }
2586 return NO_ERROR;
2587 }
2588
setOutputDevice(audio_port_handle_t deviceId)2589 status_t MediaPlayerService::AudioOutput::setOutputDevice(audio_port_handle_t deviceId)
2590 {
2591 ALOGV("setOutputDevice(%d)", deviceId);
2592 Mutex::Autolock lock(mLock);
2593 mSelectedDeviceId = deviceId;
2594 if (mTrack != 0) {
2595 return mTrack->setOutputDevice(deviceId);
2596 }
2597 return NO_ERROR;
2598 }
2599
getRoutedDeviceId(audio_port_handle_t * deviceId)2600 status_t MediaPlayerService::AudioOutput::getRoutedDeviceId(audio_port_handle_t* deviceId)
2601 {
2602 ALOGV("getRoutedDeviceId");
2603 Mutex::Autolock lock(mLock);
2604 if (mTrack != 0) {
2605 mRoutedDeviceId = mTrack->getRoutedDeviceId();
2606 }
2607 *deviceId = mRoutedDeviceId;
2608 return NO_ERROR;
2609 }
2610
enableAudioDeviceCallback(bool enabled)2611 status_t MediaPlayerService::AudioOutput::enableAudioDeviceCallback(bool enabled)
2612 {
2613 ALOGV("enableAudioDeviceCallback, %d", enabled);
2614 Mutex::Autolock lock(mLock);
2615 mDeviceCallbackEnabled = enabled;
2616 if (mTrack != 0) {
2617 status_t status;
2618 if (enabled) {
2619 status = mTrack->addAudioDeviceCallback(mDeviceCallback.promote());
2620 } else {
2621 status = mTrack->removeAudioDeviceCallback(mDeviceCallback.promote());
2622 }
2623 return status;
2624 }
2625 return NO_ERROR;
2626 }
2627
applyVolumeShaper(const sp<VolumeShaper::Configuration> & configuration,const sp<VolumeShaper::Operation> & operation)2628 VolumeShaper::Status MediaPlayerService::AudioOutput::applyVolumeShaper(
2629 const sp<VolumeShaper::Configuration>& configuration,
2630 const sp<VolumeShaper::Operation>& operation)
2631 {
2632 Mutex::Autolock lock(mLock);
2633 ALOGV("AudioOutput::applyVolumeShaper");
2634
2635 if (configuration == nullptr) {
2636 ALOGE("AudioOutput::applyVolumeShaper Null configuration parameter");
2637 return VolumeShaper::Status(BAD_VALUE);
2638 }
2639
2640 if (operation == nullptr) {
2641 ALOGE("AudioOutput::applyVolumeShaper Null operation parameter");
2642 return VolumeShaper::Status(BAD_VALUE);
2643 }
2644
2645 mVolumeHandler->setIdIfNecessary(configuration);
2646
2647 VolumeShaper::Status status;
2648 if (mTrack != 0) {
2649 status = mTrack->applyVolumeShaper(configuration, operation);
2650 if (status >= 0) {
2651 (void)mVolumeHandler->applyVolumeShaper(configuration, operation);
2652 if (mTrack->isPlaying()) { // match local AudioTrack to properly restore.
2653 mVolumeHandler->setStarted();
2654 }
2655 }
2656 } else {
2657 // VolumeShapers are not affected when a track moves between players for
2658 // gapless playback (setNextMediaPlayer).
2659 // We forward VolumeShaper operations that do not change configuration
2660 // to the new player so that unducking may occur as expected.
2661 // Unducking is an idempotent operation, same if applied back-to-back.
2662 if (configuration->getType() == VolumeShaper::Configuration::TYPE_ID
2663 && mNextOutput != nullptr) {
2664 ALOGV("applyVolumeShaper: Attempting to forward missed operation: %s %s",
2665 configuration->toString().c_str(), operation->toString().c_str());
2666 Mutex::Autolock nextLock(mNextOutput->mLock);
2667
2668 // recycled track should be forwarded from this AudioSink by switchToNextOutput
2669 sp<AudioTrack> track = mNextOutput->mRecycledTrack;
2670 if (track != nullptr) {
2671 ALOGD("Forward VolumeShaper operation to recycled track %p", track.get());
2672 (void)track->applyVolumeShaper(configuration, operation);
2673 } else {
2674 // There is a small chance that the unduck occurs after the next
2675 // player has already started, but before it is registered to receive
2676 // the unduck command.
2677 track = mNextOutput->mTrack;
2678 if (track != nullptr) {
2679 ALOGD("Forward VolumeShaper operation to track %p", track.get());
2680 (void)track->applyVolumeShaper(configuration, operation);
2681 }
2682 }
2683 }
2684 status = mVolumeHandler->applyVolumeShaper(configuration, operation);
2685 }
2686 return status;
2687 }
2688
getVolumeShaperState(int id)2689 sp<VolumeShaper::State> MediaPlayerService::AudioOutput::getVolumeShaperState(int id)
2690 {
2691 Mutex::Autolock lock(mLock);
2692 if (mTrack != 0) {
2693 return mTrack->getVolumeShaperState(id);
2694 } else {
2695 return mVolumeHandler->getVolumeShaperState(id);
2696 }
2697 }
2698
onMoreData(const AudioTrack::Buffer & buffer)2699 size_t MediaPlayerService::AudioOutput::CallbackData::onMoreData(const AudioTrack::Buffer& buffer) {
2700 ALOGD("data callback");
2701 lock();
2702 sp<AudioOutput> me = getOutput();
2703 if (me == nullptr) {
2704 unlock();
2705 return 0;
2706 }
2707 size_t actualSize = (*me->mCallback)(
2708 me.get(), buffer.data(), buffer.size(), me->mCallbackCookie,
2709 CB_EVENT_FILL_BUFFER);
2710
2711 // Log when no data is returned from the callback.
2712 // (1) We may have no data (especially with network streaming sources).
2713 // (2) We may have reached the EOS and the audio track is not stopped yet.
2714 // Note that AwesomePlayer/AudioPlayer will only return zero size when it reaches the EOS.
2715 // NuPlayerRenderer will return zero when it doesn't have data (it doesn't block to fill).
2716 //
2717 // This is a benign busy-wait, with the next data request generated 10 ms or more later;
2718 // nevertheless for power reasons, we don't want to see too many of these.
2719
2720 ALOGV_IF(actualSize == 0 && buffer.size() > 0, "callbackwrapper: empty buffer returned");
2721 unlock();
2722 return actualSize;
2723 }
2724
onStreamEnd()2725 void MediaPlayerService::AudioOutput::CallbackData::onStreamEnd() {
2726 lock();
2727 sp<AudioOutput> me = getOutput();
2728 if (me == nullptr) {
2729 unlock();
2730 return;
2731 }
2732 ALOGV("callbackwrapper: deliver EVENT_STREAM_END");
2733 (*me->mCallback)(me.get(), NULL /* buffer */, 0 /* size */,
2734 me->mCallbackCookie, CB_EVENT_STREAM_END);
2735 unlock();
2736 }
2737
2738
onNewIAudioTrack()2739 void MediaPlayerService::AudioOutput::CallbackData::onNewIAudioTrack() {
2740 lock();
2741 sp<AudioOutput> me = getOutput();
2742 if (me == nullptr) {
2743 unlock();
2744 return;
2745 }
2746 ALOGV("callbackwrapper: deliver EVENT_TEAR_DOWN");
2747 (*me->mCallback)(me.get(), NULL /* buffer */, 0 /* size */,
2748 me->mCallbackCookie, CB_EVENT_TEAR_DOWN);
2749 unlock();
2750 }
2751
onUnderrun()2752 void MediaPlayerService::AudioOutput::CallbackData::onUnderrun() {
2753 // This occurs when there is no data available, typically
2754 // when there is a failure to supply data to the AudioTrack. It can also
2755 // occur in non-offloaded mode when the audio device comes out of standby.
2756 //
2757 // If an AudioTrack underruns it outputs silence. Since this happens suddenly
2758 // it may sound like an audible pop or glitch.
2759 //
2760 // The underrun event is sent once per track underrun; the condition is reset
2761 // when more data is sent to the AudioTrack.
2762 ALOGD("callbackwrapper: EVENT_UNDERRUN (discarded)");
2763
2764 }
2765
getSessionId() const2766 audio_session_t MediaPlayerService::AudioOutput::getSessionId() const
2767 {
2768 Mutex::Autolock lock(mLock);
2769 return mSessionId;
2770 }
2771
getSampleRate() const2772 uint32_t MediaPlayerService::AudioOutput::getSampleRate() const
2773 {
2774 Mutex::Autolock lock(mLock);
2775 if (mTrack == 0) return 0;
2776 return mTrack->getSampleRate();
2777 }
2778
getBufferDurationInUs() const2779 int64_t MediaPlayerService::AudioOutput::getBufferDurationInUs() const
2780 {
2781 Mutex::Autolock lock(mLock);
2782 if (mTrack == 0) {
2783 return 0;
2784 }
2785 int64_t duration;
2786 if (mTrack->getBufferDurationInUs(&duration) != OK) {
2787 return 0;
2788 }
2789 return duration;
2790 }
2791
2792 ////////////////////////////////////////////////////////////////////////////////
2793
2794 struct CallbackThread : public Thread {
2795 CallbackThread(const wp<MediaPlayerBase::AudioSink> &sink,
2796 MediaPlayerBase::AudioSink::AudioCallback cb,
2797 void *cookie);
2798
2799 protected:
2800 virtual ~CallbackThread();
2801
2802 virtual bool threadLoop();
2803
2804 private:
2805 wp<MediaPlayerBase::AudioSink> mSink;
2806 MediaPlayerBase::AudioSink::AudioCallback mCallback;
2807 void *mCookie;
2808 void *mBuffer;
2809 size_t mBufferSize;
2810
2811 CallbackThread(const CallbackThread &);
2812 CallbackThread &operator=(const CallbackThread &);
2813 };
2814
CallbackThread(const wp<MediaPlayerBase::AudioSink> & sink,MediaPlayerBase::AudioSink::AudioCallback cb,void * cookie)2815 CallbackThread::CallbackThread(
2816 const wp<MediaPlayerBase::AudioSink> &sink,
2817 MediaPlayerBase::AudioSink::AudioCallback cb,
2818 void *cookie)
2819 : mSink(sink),
2820 mCallback(cb),
2821 mCookie(cookie),
2822 mBuffer(NULL),
2823 mBufferSize(0) {
2824 }
2825
~CallbackThread()2826 CallbackThread::~CallbackThread() {
2827 if (mBuffer) {
2828 free(mBuffer);
2829 mBuffer = NULL;
2830 }
2831 }
2832
threadLoop()2833 bool CallbackThread::threadLoop() {
2834 sp<MediaPlayerBase::AudioSink> sink = mSink.promote();
2835 if (sink == NULL) {
2836 return false;
2837 }
2838
2839 if (mBuffer == NULL) {
2840 mBufferSize = sink->bufferSize();
2841 mBuffer = malloc(mBufferSize);
2842 }
2843
2844 size_t actualSize =
2845 (*mCallback)(sink.get(), mBuffer, mBufferSize, mCookie,
2846 MediaPlayerBase::AudioSink::CB_EVENT_FILL_BUFFER);
2847
2848 if (actualSize > 0) {
2849 sink->write(mBuffer, actualSize);
2850 // Could return false on sink->write() error or short count.
2851 // Not necessarily appropriate but would work for AudioCache behavior.
2852 }
2853
2854 return true;
2855 }
2856
2857 ////////////////////////////////////////////////////////////////////////////////
2858
addBatteryData(uint32_t params)2859 void MediaPlayerService::addBatteryData(uint32_t params) {
2860 mBatteryTracker.addBatteryData(params);
2861 }
2862
pullBatteryData(Parcel * reply)2863 status_t MediaPlayerService::pullBatteryData(Parcel* reply) {
2864 return mBatteryTracker.pullBatteryData(reply);
2865 }
2866
BatteryTracker()2867 MediaPlayerService::BatteryTracker::BatteryTracker() {
2868 mBatteryAudio.refCount = 0;
2869 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
2870 mBatteryAudio.deviceOn[i] = 0;
2871 mBatteryAudio.lastTime[i] = 0;
2872 mBatteryAudio.totalTime[i] = 0;
2873 }
2874 // speaker is on by default
2875 mBatteryAudio.deviceOn[SPEAKER] = 1;
2876
2877 // reset battery stats
2878 // if the mediaserver has crashed, battery stats could be left
2879 // in bad state, reset the state upon service start.
2880 BatteryNotifier::getInstance().noteResetVideo();
2881 }
2882
addBatteryData(uint32_t params)2883 void MediaPlayerService::BatteryTracker::addBatteryData(uint32_t params)
2884 {
2885 Mutex::Autolock lock(mLock);
2886
2887 int32_t time = systemTime() / 1000000L;
2888
2889 // change audio output devices. This notification comes from AudioFlinger
2890 if ((params & kBatteryDataSpeakerOn)
2891 || (params & kBatteryDataOtherAudioDeviceOn)) {
2892
2893 int deviceOn[NUM_AUDIO_DEVICES];
2894 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
2895 deviceOn[i] = 0;
2896 }
2897
2898 if ((params & kBatteryDataSpeakerOn)
2899 && (params & kBatteryDataOtherAudioDeviceOn)) {
2900 deviceOn[SPEAKER_AND_OTHER] = 1;
2901 } else if (params & kBatteryDataSpeakerOn) {
2902 deviceOn[SPEAKER] = 1;
2903 } else {
2904 deviceOn[OTHER_AUDIO_DEVICE] = 1;
2905 }
2906
2907 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
2908 if (mBatteryAudio.deviceOn[i] != deviceOn[i]){
2909
2910 if (mBatteryAudio.refCount > 0) { // if playing audio
2911 if (!deviceOn[i]) {
2912 mBatteryAudio.lastTime[i] += time;
2913 mBatteryAudio.totalTime[i] += mBatteryAudio.lastTime[i];
2914 mBatteryAudio.lastTime[i] = 0;
2915 } else {
2916 mBatteryAudio.lastTime[i] = 0 - time;
2917 }
2918 }
2919
2920 mBatteryAudio.deviceOn[i] = deviceOn[i];
2921 }
2922 }
2923 return;
2924 }
2925
2926 // an audio stream is started
2927 if (params & kBatteryDataAudioFlingerStart) {
2928 // record the start time only if currently no other audio
2929 // is being played
2930 if (mBatteryAudio.refCount == 0) {
2931 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
2932 if (mBatteryAudio.deviceOn[i]) {
2933 mBatteryAudio.lastTime[i] -= time;
2934 }
2935 }
2936 }
2937
2938 mBatteryAudio.refCount ++;
2939 return;
2940
2941 } else if (params & kBatteryDataAudioFlingerStop) {
2942 if (mBatteryAudio.refCount <= 0) {
2943 ALOGW("Battery track warning: refCount is <= 0");
2944 return;
2945 }
2946
2947 // record the stop time only if currently this is the only
2948 // audio being played
2949 if (mBatteryAudio.refCount == 1) {
2950 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
2951 if (mBatteryAudio.deviceOn[i]) {
2952 mBatteryAudio.lastTime[i] += time;
2953 mBatteryAudio.totalTime[i] += mBatteryAudio.lastTime[i];
2954 mBatteryAudio.lastTime[i] = 0;
2955 }
2956 }
2957 }
2958
2959 mBatteryAudio.refCount --;
2960 return;
2961 }
2962
2963 uid_t uid = IPCThreadState::self()->getCallingUid();
2964 if (uid == AID_MEDIA) {
2965 return;
2966 }
2967 int index = mBatteryData.indexOfKey(uid);
2968
2969 if (index < 0) { // create a new entry for this UID
2970 BatteryUsageInfo info;
2971 info.audioTotalTime = 0;
2972 info.videoTotalTime = 0;
2973 info.audioLastTime = 0;
2974 info.videoLastTime = 0;
2975 info.refCount = 0;
2976
2977 if (mBatteryData.add(uid, info) == NO_MEMORY) {
2978 ALOGE("Battery track error: no memory for new app");
2979 return;
2980 }
2981 }
2982
2983 BatteryUsageInfo &info = mBatteryData.editValueFor(uid);
2984
2985 if (params & kBatteryDataCodecStarted) {
2986 if (params & kBatteryDataTrackAudio) {
2987 info.audioLastTime -= time;
2988 info.refCount ++;
2989 }
2990 if (params & kBatteryDataTrackVideo) {
2991 info.videoLastTime -= time;
2992 info.refCount ++;
2993 }
2994 } else {
2995 if (info.refCount == 0) {
2996 ALOGW("Battery track warning: refCount is already 0");
2997 return;
2998 } else if (info.refCount < 0) {
2999 ALOGE("Battery track error: refCount < 0");
3000 mBatteryData.removeItem(uid);
3001 return;
3002 }
3003
3004 if (params & kBatteryDataTrackAudio) {
3005 info.audioLastTime += time;
3006 info.refCount --;
3007 }
3008 if (params & kBatteryDataTrackVideo) {
3009 info.videoLastTime += time;
3010 info.refCount --;
3011 }
3012
3013 // no stream is being played by this UID
3014 if (info.refCount == 0) {
3015 info.audioTotalTime += info.audioLastTime;
3016 info.audioLastTime = 0;
3017 info.videoTotalTime += info.videoLastTime;
3018 info.videoLastTime = 0;
3019 }
3020 }
3021 }
3022
pullBatteryData(Parcel * reply)3023 status_t MediaPlayerService::BatteryTracker::pullBatteryData(Parcel* reply) {
3024 Mutex::Autolock lock(mLock);
3025
3026 // audio output devices usage
3027 int32_t time = systemTime() / 1000000L; //in ms
3028 int32_t totalTime;
3029
3030 for (int i = 0; i < NUM_AUDIO_DEVICES; i++) {
3031 totalTime = mBatteryAudio.totalTime[i];
3032
3033 if (mBatteryAudio.deviceOn[i]
3034 && (mBatteryAudio.lastTime[i] != 0)) {
3035 int32_t tmpTime = mBatteryAudio.lastTime[i] + time;
3036 totalTime += tmpTime;
3037 }
3038
3039 reply->writeInt32(totalTime);
3040 // reset the total time
3041 mBatteryAudio.totalTime[i] = 0;
3042 }
3043
3044 // codec usage
3045 BatteryUsageInfo info;
3046 int size = mBatteryData.size();
3047
3048 reply->writeInt32(size);
3049 int i = 0;
3050
3051 while (i < size) {
3052 info = mBatteryData.valueAt(i);
3053
3054 reply->writeInt32(mBatteryData.keyAt(i)); //UID
3055 reply->writeInt32(info.audioTotalTime);
3056 reply->writeInt32(info.videoTotalTime);
3057
3058 info.audioTotalTime = 0;
3059 info.videoTotalTime = 0;
3060
3061 // remove the UID entry where no stream is being played
3062 if (info.refCount <= 0) {
3063 mBatteryData.removeItemsAt(i);
3064 size --;
3065 i --;
3066 }
3067 i++;
3068 }
3069 return NO_ERROR;
3070 }
3071
3072 #ifdef FUZZ_MODE_MEDIA_PLAYER_SERVICE
createForFuzzTesting()3073 sp<MediaPlayerService> MediaPlayerService::createForFuzzTesting() {
3074 return sp<MediaPlayerService>::make();
3075 }
3076 #endif // FUZZ_MODE_MEDIA_PLAYER_SERVICE
3077
3078 } // namespace android
3079