1 /* 2 ** 3 ** Copyright 2007, 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 //#define LOG_NDEBUG 0 19 #define LOG_TAG "MediaPlayer-JNI" 20 #include "utils/Log.h" 21 22 #include <media/mediaplayer.h> 23 #include <media/IMediaHTTPService.h> 24 #include <media/MediaPlayerInterface.h> 25 #include <stdio.h> 26 #include <assert.h> 27 #include <limits.h> 28 #include <unistd.h> 29 #include <fcntl.h> 30 #include <utils/threads.h> 31 #include "jni.h" 32 #include "JNIHelp.h" 33 #include "android_runtime/AndroidRuntime.h" 34 #include "android_runtime/android_view_Surface.h" 35 #include "android_runtime/Log.h" 36 #include "utils/Errors.h" // for status_t 37 #include "utils/KeyedVector.h" 38 #include "utils/String8.h" 39 #include "android_media_Utils.h" 40 41 #include "android_os_Parcel.h" 42 #include "android_util_Binder.h" 43 #include <binder/Parcel.h> 44 #include <gui/IGraphicBufferProducer.h> 45 #include <gui/Surface.h> 46 #include <binder/IPCThreadState.h> 47 #include <binder/IServiceManager.h> 48 49 #include "android_util_Binder.h" 50 // ---------------------------------------------------------------------------- 51 52 using namespace android; 53 54 // ---------------------------------------------------------------------------- 55 56 struct fields_t { 57 jfieldID context; 58 jfieldID surface_texture; 59 60 jmethodID post_event; 61 62 jmethodID proxyConfigGetHost; 63 jmethodID proxyConfigGetPort; 64 jmethodID proxyConfigGetExclusionList; 65 }; 66 static fields_t fields; 67 68 static Mutex sLock; 69 70 // ---------------------------------------------------------------------------- 71 // ref-counted object for callbacks 72 class JNIMediaPlayerListener: public MediaPlayerListener 73 { 74 public: 75 JNIMediaPlayerListener(JNIEnv* env, jobject thiz, jobject weak_thiz); 76 ~JNIMediaPlayerListener(); 77 virtual void notify(int msg, int ext1, int ext2, const Parcel *obj = NULL); 78 private: 79 JNIMediaPlayerListener(); 80 jclass mClass; // Reference to MediaPlayer class 81 jobject mObject; // Weak ref to MediaPlayer Java object to call on 82 }; 83 84 JNIMediaPlayerListener::JNIMediaPlayerListener(JNIEnv* env, jobject thiz, jobject weak_thiz) 85 { 86 87 // Hold onto the MediaPlayer class for use in calling the static method 88 // that posts events to the application thread. 89 jclass clazz = env->GetObjectClass(thiz); 90 if (clazz == NULL) { 91 ALOGE("Can't find android/media/MediaPlayer"); 92 jniThrowException(env, "java/lang/Exception", NULL); 93 return; 94 } 95 mClass = (jclass)env->NewGlobalRef(clazz); 96 97 // We use a weak reference so the MediaPlayer object can be garbage collected. 98 // The reference is only used as a proxy for callbacks. 99 mObject = env->NewGlobalRef(weak_thiz); 100 } 101 102 JNIMediaPlayerListener::~JNIMediaPlayerListener() 103 { 104 // remove global references 105 JNIEnv *env = AndroidRuntime::getJNIEnv(); 106 env->DeleteGlobalRef(mObject); 107 env->DeleteGlobalRef(mClass); 108 } 109 110 void JNIMediaPlayerListener::notify(int msg, int ext1, int ext2, const Parcel *obj) 111 { 112 JNIEnv *env = AndroidRuntime::getJNIEnv(); 113 if (obj && obj->dataSize() > 0) { 114 jobject jParcel = createJavaParcelObject(env); 115 if (jParcel != NULL) { 116 Parcel* nativeParcel = parcelForJavaObject(env, jParcel); 117 nativeParcel->setData(obj->data(), obj->dataSize()); 118 env->CallStaticVoidMethod(mClass, fields.post_event, mObject, 119 msg, ext1, ext2, jParcel); 120 env->DeleteLocalRef(jParcel); 121 } 122 } else { 123 env->CallStaticVoidMethod(mClass, fields.post_event, mObject, 124 msg, ext1, ext2, NULL); 125 } 126 if (env->ExceptionCheck()) { 127 ALOGW("An exception occurred while notifying an event."); 128 LOGW_EX(env); 129 env->ExceptionClear(); 130 } 131 } 132 133 // ---------------------------------------------------------------------------- 134 135 static sp<MediaPlayer> getMediaPlayer(JNIEnv* env, jobject thiz) 136 { 137 Mutex::Autolock l(sLock); 138 MediaPlayer* const p = (MediaPlayer*)env->GetLongField(thiz, fields.context); 139 return sp<MediaPlayer>(p); 140 } 141 142 static sp<MediaPlayer> setMediaPlayer(JNIEnv* env, jobject thiz, const sp<MediaPlayer>& player) 143 { 144 Mutex::Autolock l(sLock); 145 sp<MediaPlayer> old = (MediaPlayer*)env->GetLongField(thiz, fields.context); 146 if (player.get()) { 147 player->incStrong((void*)setMediaPlayer); 148 } 149 if (old != 0) { 150 old->decStrong((void*)setMediaPlayer); 151 } 152 env->SetLongField(thiz, fields.context, (jlong)player.get()); 153 return old; 154 } 155 156 // If exception is NULL and opStatus is not OK, this method sends an error 157 // event to the client application; otherwise, if exception is not NULL and 158 // opStatus is not OK, this method throws the given exception to the client 159 // application. 160 static void process_media_player_call(JNIEnv *env, jobject thiz, status_t opStatus, const char* exception, const char *message) 161 { 162 if (exception == NULL) { // Don't throw exception. Instead, send an event. 163 if (opStatus != (status_t) OK) { 164 sp<MediaPlayer> mp = getMediaPlayer(env, thiz); 165 if (mp != 0) mp->notify(MEDIA_ERROR, opStatus, 0); 166 } 167 } else { // Throw exception! 168 if ( opStatus == (status_t) INVALID_OPERATION ) { 169 jniThrowException(env, "java/lang/IllegalStateException", NULL); 170 } else if ( opStatus == (status_t) PERMISSION_DENIED ) { 171 jniThrowException(env, "java/lang/SecurityException", NULL); 172 } else if ( opStatus != (status_t) OK ) { 173 if (strlen(message) > 230) { 174 // if the message is too long, don't bother displaying the status code 175 jniThrowException( env, exception, message); 176 } else { 177 char msg[256]; 178 // append the status code to the message 179 sprintf(msg, "%s: status=0x%X", message, opStatus); 180 jniThrowException( env, exception, msg); 181 } 182 } 183 } 184 } 185 186 static void 187 android_media_MediaPlayer_setDataSourceAndHeaders( 188 JNIEnv *env, jobject thiz, jobject httpServiceBinderObj, jstring path, 189 jobjectArray keys, jobjectArray values) { 190 191 sp<MediaPlayer> mp = getMediaPlayer(env, thiz); 192 if (mp == NULL ) { 193 jniThrowException(env, "java/lang/IllegalStateException", NULL); 194 return; 195 } 196 197 if (path == NULL) { 198 jniThrowException(env, "java/lang/IllegalArgumentException", NULL); 199 return; 200 } 201 202 const char *tmp = env->GetStringUTFChars(path, NULL); 203 if (tmp == NULL) { // Out of memory 204 return; 205 } 206 ALOGV("setDataSource: path %s", tmp); 207 208 String8 pathStr(tmp); 209 env->ReleaseStringUTFChars(path, tmp); 210 tmp = NULL; 211 212 // We build a KeyedVector out of the key and val arrays 213 KeyedVector<String8, String8> headersVector; 214 if (!ConvertKeyValueArraysToKeyedVector( 215 env, keys, values, &headersVector)) { 216 return; 217 } 218 219 sp<IMediaHTTPService> httpService; 220 if (httpServiceBinderObj != NULL) { 221 sp<IBinder> binder = ibinderForJavaObject(env, httpServiceBinderObj); 222 httpService = interface_cast<IMediaHTTPService>(binder); 223 } 224 225 status_t opStatus = 226 mp->setDataSource( 227 httpService, 228 pathStr, 229 headersVector.size() > 0? &headersVector : NULL); 230 231 process_media_player_call( 232 env, thiz, opStatus, "java/io/IOException", 233 "setDataSource failed." ); 234 } 235 236 static void 237 android_media_MediaPlayer_setDataSourceFD(JNIEnv *env, jobject thiz, jobject fileDescriptor, jlong offset, jlong length) 238 { 239 sp<MediaPlayer> mp = getMediaPlayer(env, thiz); 240 if (mp == NULL ) { 241 jniThrowException(env, "java/lang/IllegalStateException", NULL); 242 return; 243 } 244 245 if (fileDescriptor == NULL) { 246 jniThrowException(env, "java/lang/IllegalArgumentException", NULL); 247 return; 248 } 249 int fd = jniGetFDFromFileDescriptor(env, fileDescriptor); 250 ALOGV("setDataSourceFD: fd %d", fd); 251 process_media_player_call( env, thiz, mp->setDataSource(fd, offset, length), "java/io/IOException", "setDataSourceFD failed." ); 252 } 253 254 static sp<IGraphicBufferProducer> 255 getVideoSurfaceTexture(JNIEnv* env, jobject thiz) { 256 IGraphicBufferProducer * const p = (IGraphicBufferProducer*)env->GetLongField(thiz, fields.surface_texture); 257 return sp<IGraphicBufferProducer>(p); 258 } 259 260 static void 261 decVideoSurfaceRef(JNIEnv *env, jobject thiz) 262 { 263 sp<MediaPlayer> mp = getMediaPlayer(env, thiz); 264 if (mp == NULL) { 265 return; 266 } 267 268 sp<IGraphicBufferProducer> old_st = getVideoSurfaceTexture(env, thiz); 269 if (old_st != NULL) { 270 old_st->decStrong((void*)decVideoSurfaceRef); 271 } 272 } 273 274 static void 275 setVideoSurface(JNIEnv *env, jobject thiz, jobject jsurface, jboolean mediaPlayerMustBeAlive) 276 { 277 sp<MediaPlayer> mp = getMediaPlayer(env, thiz); 278 if (mp == NULL) { 279 if (mediaPlayerMustBeAlive) { 280 jniThrowException(env, "java/lang/IllegalStateException", NULL); 281 } 282 return; 283 } 284 285 decVideoSurfaceRef(env, thiz); 286 287 sp<IGraphicBufferProducer> new_st; 288 if (jsurface) { 289 sp<Surface> surface(android_view_Surface_getSurface(env, jsurface)); 290 if (surface != NULL) { 291 new_st = surface->getIGraphicBufferProducer(); 292 if (new_st == NULL) { 293 jniThrowException(env, "java/lang/IllegalArgumentException", 294 "The surface does not have a binding SurfaceTexture!"); 295 return; 296 } 297 new_st->incStrong((void*)decVideoSurfaceRef); 298 } else { 299 jniThrowException(env, "java/lang/IllegalArgumentException", 300 "The surface has been released"); 301 return; 302 } 303 } 304 305 env->SetLongField(thiz, fields.surface_texture, (jlong)new_st.get()); 306 307 // This will fail if the media player has not been initialized yet. This 308 // can be the case if setDisplay() on MediaPlayer.java has been called 309 // before setDataSource(). The redundant call to setVideoSurfaceTexture() 310 // in prepare/prepareAsync covers for this case. 311 mp->setVideoSurfaceTexture(new_st); 312 } 313 314 static void 315 android_media_MediaPlayer_setVideoSurface(JNIEnv *env, jobject thiz, jobject jsurface) 316 { 317 setVideoSurface(env, thiz, jsurface, true /* mediaPlayerMustBeAlive */); 318 } 319 320 static void 321 android_media_MediaPlayer_prepare(JNIEnv *env, jobject thiz) 322 { 323 sp<MediaPlayer> mp = getMediaPlayer(env, thiz); 324 if (mp == NULL ) { 325 jniThrowException(env, "java/lang/IllegalStateException", NULL); 326 return; 327 } 328 329 // Handle the case where the display surface was set before the mp was 330 // initialized. We try again to make it stick. 331 sp<IGraphicBufferProducer> st = getVideoSurfaceTexture(env, thiz); 332 mp->setVideoSurfaceTexture(st); 333 334 process_media_player_call( env, thiz, mp->prepare(), "java/io/IOException", "Prepare failed." ); 335 } 336 337 static void 338 android_media_MediaPlayer_prepareAsync(JNIEnv *env, jobject thiz) 339 { 340 sp<MediaPlayer> mp = getMediaPlayer(env, thiz); 341 if (mp == NULL ) { 342 jniThrowException(env, "java/lang/IllegalStateException", NULL); 343 return; 344 } 345 346 // Handle the case where the display surface was set before the mp was 347 // initialized. We try again to make it stick. 348 sp<IGraphicBufferProducer> st = getVideoSurfaceTexture(env, thiz); 349 mp->setVideoSurfaceTexture(st); 350 351 process_media_player_call( env, thiz, mp->prepareAsync(), "java/io/IOException", "Prepare Async failed." ); 352 } 353 354 static void 355 android_media_MediaPlayer_start(JNIEnv *env, jobject thiz) 356 { 357 ALOGV("start"); 358 sp<MediaPlayer> mp = getMediaPlayer(env, thiz); 359 if (mp == NULL ) { 360 jniThrowException(env, "java/lang/IllegalStateException", NULL); 361 return; 362 } 363 process_media_player_call( env, thiz, mp->start(), NULL, NULL ); 364 } 365 366 static void 367 android_media_MediaPlayer_stop(JNIEnv *env, jobject thiz) 368 { 369 ALOGV("stop"); 370 sp<MediaPlayer> mp = getMediaPlayer(env, thiz); 371 if (mp == NULL ) { 372 jniThrowException(env, "java/lang/IllegalStateException", NULL); 373 return; 374 } 375 process_media_player_call( env, thiz, mp->stop(), NULL, NULL ); 376 } 377 378 static void 379 android_media_MediaPlayer_pause(JNIEnv *env, jobject thiz) 380 { 381 ALOGV("pause"); 382 sp<MediaPlayer> mp = getMediaPlayer(env, thiz); 383 if (mp == NULL ) { 384 jniThrowException(env, "java/lang/IllegalStateException", NULL); 385 return; 386 } 387 process_media_player_call( env, thiz, mp->pause(), NULL, NULL ); 388 } 389 390 static jboolean 391 android_media_MediaPlayer_isPlaying(JNIEnv *env, jobject thiz) 392 { 393 sp<MediaPlayer> mp = getMediaPlayer(env, thiz); 394 if (mp == NULL ) { 395 jniThrowException(env, "java/lang/IllegalStateException", NULL); 396 return JNI_FALSE; 397 } 398 const jboolean is_playing = mp->isPlaying(); 399 400 ALOGV("isPlaying: %d", is_playing); 401 return is_playing; 402 } 403 404 static void 405 android_media_MediaPlayer_seekTo(JNIEnv *env, jobject thiz, jint msec) 406 { 407 sp<MediaPlayer> mp = getMediaPlayer(env, thiz); 408 if (mp == NULL ) { 409 jniThrowException(env, "java/lang/IllegalStateException", NULL); 410 return; 411 } 412 ALOGV("seekTo: %d(msec)", msec); 413 process_media_player_call( env, thiz, mp->seekTo(msec), NULL, NULL ); 414 } 415 416 static jint 417 android_media_MediaPlayer_getVideoWidth(JNIEnv *env, jobject thiz) 418 { 419 sp<MediaPlayer> mp = getMediaPlayer(env, thiz); 420 if (mp == NULL ) { 421 jniThrowException(env, "java/lang/IllegalStateException", NULL); 422 return 0; 423 } 424 int w; 425 if (0 != mp->getVideoWidth(&w)) { 426 ALOGE("getVideoWidth failed"); 427 w = 0; 428 } 429 ALOGV("getVideoWidth: %d", w); 430 return (jint) w; 431 } 432 433 static jint 434 android_media_MediaPlayer_getVideoHeight(JNIEnv *env, jobject thiz) 435 { 436 sp<MediaPlayer> mp = getMediaPlayer(env, thiz); 437 if (mp == NULL ) { 438 jniThrowException(env, "java/lang/IllegalStateException", NULL); 439 return 0; 440 } 441 int h; 442 if (0 != mp->getVideoHeight(&h)) { 443 ALOGE("getVideoHeight failed"); 444 h = 0; 445 } 446 ALOGV("getVideoHeight: %d", h); 447 return (jint) h; 448 } 449 450 451 static jint 452 android_media_MediaPlayer_getCurrentPosition(JNIEnv *env, jobject thiz) 453 { 454 sp<MediaPlayer> mp = getMediaPlayer(env, thiz); 455 if (mp == NULL ) { 456 jniThrowException(env, "java/lang/IllegalStateException", NULL); 457 return 0; 458 } 459 int msec; 460 process_media_player_call( env, thiz, mp->getCurrentPosition(&msec), NULL, NULL ); 461 ALOGV("getCurrentPosition: %d (msec)", msec); 462 return (jint) msec; 463 } 464 465 static jint 466 android_media_MediaPlayer_getDuration(JNIEnv *env, jobject thiz) 467 { 468 sp<MediaPlayer> mp = getMediaPlayer(env, thiz); 469 if (mp == NULL ) { 470 jniThrowException(env, "java/lang/IllegalStateException", NULL); 471 return 0; 472 } 473 int msec; 474 process_media_player_call( env, thiz, mp->getDuration(&msec), NULL, NULL ); 475 ALOGV("getDuration: %d (msec)", msec); 476 return (jint) msec; 477 } 478 479 static void 480 android_media_MediaPlayer_reset(JNIEnv *env, jobject thiz) 481 { 482 ALOGV("reset"); 483 sp<MediaPlayer> mp = getMediaPlayer(env, thiz); 484 if (mp == NULL ) { 485 jniThrowException(env, "java/lang/IllegalStateException", NULL); 486 return; 487 } 488 process_media_player_call( env, thiz, mp->reset(), NULL, NULL ); 489 } 490 491 static void 492 android_media_MediaPlayer_setAudioStreamType(JNIEnv *env, jobject thiz, jint streamtype) 493 { 494 ALOGV("setAudioStreamType: %d", streamtype); 495 sp<MediaPlayer> mp = getMediaPlayer(env, thiz); 496 if (mp == NULL ) { 497 jniThrowException(env, "java/lang/IllegalStateException", NULL); 498 return; 499 } 500 process_media_player_call( env, thiz, mp->setAudioStreamType((audio_stream_type_t) streamtype) , NULL, NULL ); 501 } 502 503 static jint 504 android_media_MediaPlayer_getAudioStreamType(JNIEnv *env, jobject thiz) 505 { 506 sp<MediaPlayer> mp = getMediaPlayer(env, thiz); 507 if (mp == NULL ) { 508 jniThrowException(env, "java/lang/IllegalStateException", NULL); 509 return 0; 510 } 511 audio_stream_type_t streamtype; 512 process_media_player_call( env, thiz, mp->getAudioStreamType(&streamtype), NULL, NULL ); 513 ALOGV("getAudioStreamType: %d (streamtype)", streamtype); 514 return (jint) streamtype; 515 } 516 517 static jboolean 518 android_media_MediaPlayer_setParameter(JNIEnv *env, jobject thiz, jint key, jobject java_request) 519 { 520 ALOGV("setParameter: key %d", key); 521 sp<MediaPlayer> mp = getMediaPlayer(env, thiz); 522 if (mp == NULL ) { 523 jniThrowException(env, "java/lang/IllegalStateException", NULL); 524 return false; 525 } 526 527 Parcel *request = parcelForJavaObject(env, java_request); 528 status_t err = mp->setParameter(key, *request); 529 if (err == OK) { 530 return true; 531 } else { 532 return false; 533 } 534 } 535 536 static void 537 android_media_MediaPlayer_setLooping(JNIEnv *env, jobject thiz, jboolean looping) 538 { 539 ALOGV("setLooping: %d", looping); 540 sp<MediaPlayer> mp = getMediaPlayer(env, thiz); 541 if (mp == NULL ) { 542 jniThrowException(env, "java/lang/IllegalStateException", NULL); 543 return; 544 } 545 process_media_player_call( env, thiz, mp->setLooping(looping), NULL, NULL ); 546 } 547 548 static jboolean 549 android_media_MediaPlayer_isLooping(JNIEnv *env, jobject thiz) 550 { 551 ALOGV("isLooping"); 552 sp<MediaPlayer> mp = getMediaPlayer(env, thiz); 553 if (mp == NULL ) { 554 jniThrowException(env, "java/lang/IllegalStateException", NULL); 555 return JNI_FALSE; 556 } 557 return mp->isLooping() ? JNI_TRUE : JNI_FALSE; 558 } 559 560 static void 561 android_media_MediaPlayer_setVolume(JNIEnv *env, jobject thiz, jfloat leftVolume, jfloat rightVolume) 562 { 563 ALOGV("setVolume: left %f right %f", (float) leftVolume, (float) rightVolume); 564 sp<MediaPlayer> mp = getMediaPlayer(env, thiz); 565 if (mp == NULL ) { 566 jniThrowException(env, "java/lang/IllegalStateException", NULL); 567 return; 568 } 569 process_media_player_call( env, thiz, mp->setVolume((float) leftVolume, (float) rightVolume), NULL, NULL ); 570 } 571 572 // Sends the request and reply parcels to the media player via the 573 // binder interface. 574 static jint 575 android_media_MediaPlayer_invoke(JNIEnv *env, jobject thiz, 576 jobject java_request, jobject java_reply) 577 { 578 sp<MediaPlayer> media_player = getMediaPlayer(env, thiz); 579 if (media_player == NULL ) { 580 jniThrowException(env, "java/lang/IllegalStateException", NULL); 581 return UNKNOWN_ERROR; 582 } 583 584 Parcel *request = parcelForJavaObject(env, java_request); 585 Parcel *reply = parcelForJavaObject(env, java_reply); 586 587 // Don't use process_media_player_call which use the async loop to 588 // report errors, instead returns the status. 589 return (jint) media_player->invoke(*request, reply); 590 } 591 592 // Sends the new filter to the client. 593 static jint 594 android_media_MediaPlayer_setMetadataFilter(JNIEnv *env, jobject thiz, jobject request) 595 { 596 sp<MediaPlayer> media_player = getMediaPlayer(env, thiz); 597 if (media_player == NULL ) { 598 jniThrowException(env, "java/lang/IllegalStateException", NULL); 599 return UNKNOWN_ERROR; 600 } 601 602 Parcel *filter = parcelForJavaObject(env, request); 603 604 if (filter == NULL ) { 605 jniThrowException(env, "java/lang/RuntimeException", "Filter is null"); 606 return UNKNOWN_ERROR; 607 } 608 609 return (jint) media_player->setMetadataFilter(*filter); 610 } 611 612 static jboolean 613 android_media_MediaPlayer_getMetadata(JNIEnv *env, jobject thiz, jboolean update_only, 614 jboolean apply_filter, jobject reply) 615 { 616 sp<MediaPlayer> media_player = getMediaPlayer(env, thiz); 617 if (media_player == NULL ) { 618 jniThrowException(env, "java/lang/IllegalStateException", NULL); 619 return JNI_FALSE; 620 } 621 622 Parcel *metadata = parcelForJavaObject(env, reply); 623 624 if (metadata == NULL ) { 625 jniThrowException(env, "java/lang/RuntimeException", "Reply parcel is null"); 626 return JNI_FALSE; 627 } 628 629 metadata->freeData(); 630 // On return metadata is positioned at the beginning of the 631 // metadata. Note however that the parcel actually starts with the 632 // return code so you should not rewind the parcel using 633 // setDataPosition(0). 634 if (media_player->getMetadata(update_only, apply_filter, metadata) == OK) { 635 return JNI_TRUE; 636 } else { 637 return JNI_FALSE; 638 } 639 } 640 641 // This function gets some field IDs, which in turn causes class initialization. 642 // It is called from a static block in MediaPlayer, which won't run until the 643 // first time an instance of this class is used. 644 static void 645 android_media_MediaPlayer_native_init(JNIEnv *env) 646 { 647 jclass clazz; 648 649 clazz = env->FindClass("android/media/MediaPlayer"); 650 if (clazz == NULL) { 651 return; 652 } 653 654 fields.context = env->GetFieldID(clazz, "mNativeContext", "J"); 655 if (fields.context == NULL) { 656 return; 657 } 658 659 fields.post_event = env->GetStaticMethodID(clazz, "postEventFromNative", 660 "(Ljava/lang/Object;IIILjava/lang/Object;)V"); 661 if (fields.post_event == NULL) { 662 return; 663 } 664 665 fields.surface_texture = env->GetFieldID(clazz, "mNativeSurfaceTexture", "J"); 666 if (fields.surface_texture == NULL) { 667 return; 668 } 669 670 clazz = env->FindClass("android/net/ProxyInfo"); 671 if (clazz == NULL) { 672 return; 673 } 674 675 fields.proxyConfigGetHost = 676 env->GetMethodID(clazz, "getHost", "()Ljava/lang/String;"); 677 678 fields.proxyConfigGetPort = 679 env->GetMethodID(clazz, "getPort", "()I"); 680 681 fields.proxyConfigGetExclusionList = 682 env->GetMethodID(clazz, "getExclusionListAsString", "()Ljava/lang/String;"); 683 } 684 685 static void 686 android_media_MediaPlayer_native_setup(JNIEnv *env, jobject thiz, jobject weak_this) 687 { 688 ALOGV("native_setup"); 689 sp<MediaPlayer> mp = new MediaPlayer(); 690 if (mp == NULL) { 691 jniThrowException(env, "java/lang/RuntimeException", "Out of memory"); 692 return; 693 } 694 695 // create new listener and give it to MediaPlayer 696 sp<JNIMediaPlayerListener> listener = new JNIMediaPlayerListener(env, thiz, weak_this); 697 mp->setListener(listener); 698 699 // Stow our new C++ MediaPlayer in an opaque field in the Java object. 700 setMediaPlayer(env, thiz, mp); 701 } 702 703 static void 704 android_media_MediaPlayer_release(JNIEnv *env, jobject thiz) 705 { 706 ALOGV("release"); 707 decVideoSurfaceRef(env, thiz); 708 sp<MediaPlayer> mp = setMediaPlayer(env, thiz, 0); 709 if (mp != NULL) { 710 // this prevents native callbacks after the object is released 711 mp->setListener(0); 712 mp->disconnect(); 713 } 714 } 715 716 static void 717 android_media_MediaPlayer_native_finalize(JNIEnv *env, jobject thiz) 718 { 719 ALOGV("native_finalize"); 720 sp<MediaPlayer> mp = getMediaPlayer(env, thiz); 721 if (mp != NULL) { 722 ALOGW("MediaPlayer finalized without being released"); 723 } 724 android_media_MediaPlayer_release(env, thiz); 725 } 726 727 static void android_media_MediaPlayer_set_audio_session_id(JNIEnv *env, jobject thiz, jint sessionId) { 728 ALOGV("set_session_id(): %d", sessionId); 729 sp<MediaPlayer> mp = getMediaPlayer(env, thiz); 730 if (mp == NULL ) { 731 jniThrowException(env, "java/lang/IllegalStateException", NULL); 732 return; 733 } 734 process_media_player_call( env, thiz, mp->setAudioSessionId(sessionId), NULL, NULL ); 735 } 736 737 static jint android_media_MediaPlayer_get_audio_session_id(JNIEnv *env, jobject thiz) { 738 ALOGV("get_session_id()"); 739 sp<MediaPlayer> mp = getMediaPlayer(env, thiz); 740 if (mp == NULL ) { 741 jniThrowException(env, "java/lang/IllegalStateException", NULL); 742 return 0; 743 } 744 745 return (jint) mp->getAudioSessionId(); 746 } 747 748 static void 749 android_media_MediaPlayer_setAuxEffectSendLevel(JNIEnv *env, jobject thiz, jfloat level) 750 { 751 ALOGV("setAuxEffectSendLevel: level %f", level); 752 sp<MediaPlayer> mp = getMediaPlayer(env, thiz); 753 if (mp == NULL ) { 754 jniThrowException(env, "java/lang/IllegalStateException", NULL); 755 return; 756 } 757 process_media_player_call( env, thiz, mp->setAuxEffectSendLevel(level), NULL, NULL ); 758 } 759 760 static void android_media_MediaPlayer_attachAuxEffect(JNIEnv *env, jobject thiz, jint effectId) { 761 ALOGV("attachAuxEffect(): %d", effectId); 762 sp<MediaPlayer> mp = getMediaPlayer(env, thiz); 763 if (mp == NULL ) { 764 jniThrowException(env, "java/lang/IllegalStateException", NULL); 765 return; 766 } 767 process_media_player_call( env, thiz, mp->attachAuxEffect(effectId), NULL, NULL ); 768 } 769 770 static jint 771 android_media_MediaPlayer_pullBatteryData( 772 JNIEnv *env, jobject /* thiz */, jobject java_reply) 773 { 774 sp<IBinder> binder = defaultServiceManager()->getService(String16("media.player")); 775 sp<IMediaPlayerService> service = interface_cast<IMediaPlayerService>(binder); 776 if (service.get() == NULL) { 777 jniThrowException(env, "java/lang/RuntimeException", "cannot get MediaPlayerService"); 778 return UNKNOWN_ERROR; 779 } 780 781 Parcel *reply = parcelForJavaObject(env, java_reply); 782 783 return (jint) service->pullBatteryData(reply); 784 } 785 786 static jint 787 android_media_MediaPlayer_setRetransmitEndpoint(JNIEnv *env, jobject thiz, 788 jstring addrString, jint port) { 789 sp<MediaPlayer> mp = getMediaPlayer(env, thiz); 790 if (mp == NULL ) { 791 jniThrowException(env, "java/lang/IllegalStateException", NULL); 792 return INVALID_OPERATION; 793 } 794 795 const char *cAddrString = NULL; 796 797 if (NULL != addrString) { 798 cAddrString = env->GetStringUTFChars(addrString, NULL); 799 if (cAddrString == NULL) { // Out of memory 800 return NO_MEMORY; 801 } 802 } 803 ALOGV("setRetransmitEndpoint: %s:%d", 804 cAddrString ? cAddrString : "(null)", port); 805 806 status_t ret; 807 if (cAddrString && (port > 0xFFFF)) { 808 ret = BAD_VALUE; 809 } else { 810 ret = mp->setRetransmitEndpoint(cAddrString, 811 static_cast<uint16_t>(port)); 812 } 813 814 if (NULL != addrString) { 815 env->ReleaseStringUTFChars(addrString, cAddrString); 816 } 817 818 if (ret == INVALID_OPERATION ) { 819 jniThrowException(env, "java/lang/IllegalStateException", NULL); 820 } 821 822 return (jint) ret; 823 } 824 825 static void 826 android_media_MediaPlayer_setNextMediaPlayer(JNIEnv *env, jobject thiz, jobject java_player) 827 { 828 ALOGV("setNextMediaPlayer"); 829 sp<MediaPlayer> thisplayer = getMediaPlayer(env, thiz); 830 if (thisplayer == NULL) { 831 jniThrowException(env, "java/lang/IllegalStateException", "This player not initialized"); 832 return; 833 } 834 sp<MediaPlayer> nextplayer = (java_player == NULL) ? NULL : getMediaPlayer(env, java_player); 835 if (nextplayer == NULL && java_player != NULL) { 836 jniThrowException(env, "java/lang/IllegalStateException", "That player not initialized"); 837 return; 838 } 839 840 if (nextplayer == thisplayer) { 841 jniThrowException(env, "java/lang/IllegalArgumentException", "Next player can't be self"); 842 return; 843 } 844 // tie the two players together 845 process_media_player_call( 846 env, thiz, thisplayer->setNextMediaPlayer(nextplayer), 847 "java/lang/IllegalArgumentException", 848 "setNextMediaPlayer failed." ); 849 ; 850 } 851 852 // ---------------------------------------------------------------------------- 853 854 static JNINativeMethod gMethods[] = { 855 { 856 "nativeSetDataSource", 857 "(Landroid/os/IBinder;Ljava/lang/String;[Ljava/lang/String;" 858 "[Ljava/lang/String;)V", 859 (void *)android_media_MediaPlayer_setDataSourceAndHeaders 860 }, 861 862 {"_setDataSource", "(Ljava/io/FileDescriptor;JJ)V", (void *)android_media_MediaPlayer_setDataSourceFD}, 863 {"_setVideoSurface", "(Landroid/view/Surface;)V", (void *)android_media_MediaPlayer_setVideoSurface}, 864 {"_prepare", "()V", (void *)android_media_MediaPlayer_prepare}, 865 {"prepareAsync", "()V", (void *)android_media_MediaPlayer_prepareAsync}, 866 {"_start", "()V", (void *)android_media_MediaPlayer_start}, 867 {"_stop", "()V", (void *)android_media_MediaPlayer_stop}, 868 {"getVideoWidth", "()I", (void *)android_media_MediaPlayer_getVideoWidth}, 869 {"getVideoHeight", "()I", (void *)android_media_MediaPlayer_getVideoHeight}, 870 {"seekTo", "(I)V", (void *)android_media_MediaPlayer_seekTo}, 871 {"_pause", "()V", (void *)android_media_MediaPlayer_pause}, 872 {"isPlaying", "()Z", (void *)android_media_MediaPlayer_isPlaying}, 873 {"getCurrentPosition", "()I", (void *)android_media_MediaPlayer_getCurrentPosition}, 874 {"getDuration", "()I", (void *)android_media_MediaPlayer_getDuration}, 875 {"_release", "()V", (void *)android_media_MediaPlayer_release}, 876 {"_reset", "()V", (void *)android_media_MediaPlayer_reset}, 877 {"_setAudioStreamType", "(I)V", (void *)android_media_MediaPlayer_setAudioStreamType}, 878 {"_getAudioStreamType", "()I", (void *)android_media_MediaPlayer_getAudioStreamType}, 879 {"setParameter", "(ILandroid/os/Parcel;)Z", (void *)android_media_MediaPlayer_setParameter}, 880 {"setLooping", "(Z)V", (void *)android_media_MediaPlayer_setLooping}, 881 {"isLooping", "()Z", (void *)android_media_MediaPlayer_isLooping}, 882 {"_setVolume", "(FF)V", (void *)android_media_MediaPlayer_setVolume}, 883 {"native_invoke", "(Landroid/os/Parcel;Landroid/os/Parcel;)I",(void *)android_media_MediaPlayer_invoke}, 884 {"native_setMetadataFilter", "(Landroid/os/Parcel;)I", (void *)android_media_MediaPlayer_setMetadataFilter}, 885 {"native_getMetadata", "(ZZLandroid/os/Parcel;)Z", (void *)android_media_MediaPlayer_getMetadata}, 886 {"native_init", "()V", (void *)android_media_MediaPlayer_native_init}, 887 {"native_setup", "(Ljava/lang/Object;)V", (void *)android_media_MediaPlayer_native_setup}, 888 {"native_finalize", "()V", (void *)android_media_MediaPlayer_native_finalize}, 889 {"getAudioSessionId", "()I", (void *)android_media_MediaPlayer_get_audio_session_id}, 890 {"setAudioSessionId", "(I)V", (void *)android_media_MediaPlayer_set_audio_session_id}, 891 {"_setAuxEffectSendLevel", "(F)V", (void *)android_media_MediaPlayer_setAuxEffectSendLevel}, 892 {"attachAuxEffect", "(I)V", (void *)android_media_MediaPlayer_attachAuxEffect}, 893 {"native_pullBatteryData", "(Landroid/os/Parcel;)I", (void *)android_media_MediaPlayer_pullBatteryData}, 894 {"native_setRetransmitEndpoint", "(Ljava/lang/String;I)I", (void *)android_media_MediaPlayer_setRetransmitEndpoint}, 895 {"setNextMediaPlayer", "(Landroid/media/MediaPlayer;)V", (void *)android_media_MediaPlayer_setNextMediaPlayer}, 896 }; 897 898 static const char* const kClassPathName = "android/media/MediaPlayer"; 899 900 // This function only registers the native methods 901 static int register_android_media_MediaPlayer(JNIEnv *env) 902 { 903 return AndroidRuntime::registerNativeMethods(env, 904 "android/media/MediaPlayer", gMethods, NELEM(gMethods)); 905 } 906 907 extern int register_android_media_ImageReader(JNIEnv *env); 908 extern int register_android_media_Crypto(JNIEnv *env); 909 extern int register_android_media_Drm(JNIEnv *env); 910 extern int register_android_media_MediaCodec(JNIEnv *env); 911 extern int register_android_media_MediaExtractor(JNIEnv *env); 912 extern int register_android_media_MediaCodecList(JNIEnv *env); 913 extern int register_android_media_MediaHTTPConnection(JNIEnv *env); 914 extern int register_android_media_MediaMetadataRetriever(JNIEnv *env); 915 extern int register_android_media_MediaMuxer(JNIEnv *env); 916 extern int register_android_media_MediaRecorder(JNIEnv *env); 917 extern int register_android_media_MediaScanner(JNIEnv *env); 918 extern int register_android_media_ResampleInputStream(JNIEnv *env); 919 extern int register_android_media_MediaProfiles(JNIEnv *env); 920 extern int register_android_media_AmrInputStream(JNIEnv *env); 921 extern int register_android_mtp_MtpDatabase(JNIEnv *env); 922 extern int register_android_mtp_MtpDevice(JNIEnv *env); 923 extern int register_android_mtp_MtpServer(JNIEnv *env); 924 925 jint JNI_OnLoad(JavaVM* vm, void* /* reserved */) 926 { 927 JNIEnv* env = NULL; 928 jint result = -1; 929 930 if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK) { 931 ALOGE("ERROR: GetEnv failed\n"); 932 goto bail; 933 } 934 assert(env != NULL); 935 936 if (register_android_media_ImageReader(env) < 0) { 937 ALOGE("ERROR: ImageReader native registration failed"); 938 goto bail; 939 } 940 941 if (register_android_media_MediaPlayer(env) < 0) { 942 ALOGE("ERROR: MediaPlayer native registration failed\n"); 943 goto bail; 944 } 945 946 if (register_android_media_MediaRecorder(env) < 0) { 947 ALOGE("ERROR: MediaRecorder native registration failed\n"); 948 goto bail; 949 } 950 951 if (register_android_media_MediaScanner(env) < 0) { 952 ALOGE("ERROR: MediaScanner native registration failed\n"); 953 goto bail; 954 } 955 956 if (register_android_media_MediaMetadataRetriever(env) < 0) { 957 ALOGE("ERROR: MediaMetadataRetriever native registration failed\n"); 958 goto bail; 959 } 960 961 if (register_android_media_AmrInputStream(env) < 0) { 962 ALOGE("ERROR: AmrInputStream native registration failed\n"); 963 goto bail; 964 } 965 966 if (register_android_media_ResampleInputStream(env) < 0) { 967 ALOGE("ERROR: ResampleInputStream native registration failed\n"); 968 goto bail; 969 } 970 971 if (register_android_media_MediaProfiles(env) < 0) { 972 ALOGE("ERROR: MediaProfiles native registration failed"); 973 goto bail; 974 } 975 976 if (register_android_mtp_MtpDatabase(env) < 0) { 977 ALOGE("ERROR: MtpDatabase native registration failed"); 978 goto bail; 979 } 980 981 if (register_android_mtp_MtpDevice(env) < 0) { 982 ALOGE("ERROR: MtpDevice native registration failed"); 983 goto bail; 984 } 985 986 if (register_android_mtp_MtpServer(env) < 0) { 987 ALOGE("ERROR: MtpServer native registration failed"); 988 goto bail; 989 } 990 991 if (register_android_media_MediaCodec(env) < 0) { 992 ALOGE("ERROR: MediaCodec native registration failed"); 993 goto bail; 994 } 995 996 if (register_android_media_MediaExtractor(env) < 0) { 997 ALOGE("ERROR: MediaCodec native registration failed"); 998 goto bail; 999 } 1000 1001 if (register_android_media_MediaMuxer(env) < 0) { 1002 ALOGE("ERROR: MediaMuxer native registration failed"); 1003 goto bail; 1004 } 1005 1006 if (register_android_media_MediaCodecList(env) < 0) { 1007 ALOGE("ERROR: MediaCodec native registration failed"); 1008 goto bail; 1009 } 1010 1011 if (register_android_media_Crypto(env) < 0) { 1012 ALOGE("ERROR: MediaCodec native registration failed"); 1013 goto bail; 1014 } 1015 1016 if (register_android_media_Drm(env) < 0) { 1017 ALOGE("ERROR: MediaDrm native registration failed"); 1018 goto bail; 1019 } 1020 1021 if (register_android_media_MediaHTTPConnection(env) < 0) { 1022 ALOGE("ERROR: MediaHTTPConnection native registration failed"); 1023 goto bail; 1024 } 1025 1026 /* success -- return valid version number */ 1027 result = JNI_VERSION_1_4; 1028 1029 bail: 1030 return result; 1031 } 1032 1033 // KTHXBYE 1034
