1 /* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #define LOG_TAG "MtpDatabaseJNI" 18 #include "utils/Log.h" 19 #include "utils/String8.h" 20 21 #include "android_media_Utils.h" 22 #include "mtp.h" 23 #include "IMtpDatabase.h" 24 #include "MtpDataPacket.h" 25 #include "MtpObjectInfo.h" 26 #include "MtpProperty.h" 27 #include "MtpStringBuffer.h" 28 #include "MtpUtils.h" 29 30 #include "src/piex_types.h" 31 #include "src/piex.h" 32 33 extern "C" { 34 #include "libexif/exif-content.h" 35 #include "libexif/exif-data.h" 36 #include "libexif/exif-tag.h" 37 #include "libexif/exif-utils.h" 38 } 39 40 #include <android_runtime/AndroidRuntime.h> 41 #include <android_runtime/Log.h> 42 #include <jni.h> 43 #include <media/stagefright/NuMediaExtractor.h> 44 #include <nativehelper/JNIHelp.h> 45 #include <nativehelper/ScopedLocalRef.h> 46 47 #include <assert.h> 48 #include <fcntl.h> 49 #include <inttypes.h> 50 #include <limits.h> 51 #include <stdio.h> 52 #include <unistd.h> 53 54 using namespace android; 55 56 // ---------------------------------------------------------------------------- 57 58 static jmethodID method_beginSendObject; 59 static jmethodID method_endSendObject; 60 static jmethodID method_rescanFile; 61 static jmethodID method_getObjectList; 62 static jmethodID method_getNumObjects; 63 static jmethodID method_getSupportedPlaybackFormats; 64 static jmethodID method_getSupportedCaptureFormats; 65 static jmethodID method_getSupportedObjectProperties; 66 static jmethodID method_getSupportedDeviceProperties; 67 static jmethodID method_setObjectProperty; 68 static jmethodID method_getDeviceProperty; 69 static jmethodID method_setDeviceProperty; 70 static jmethodID method_getObjectPropertyList; 71 static jmethodID method_getObjectInfo; 72 static jmethodID method_getObjectFilePath; 73 static jmethodID method_beginDeleteObject; 74 static jmethodID method_endDeleteObject; 75 static jmethodID method_beginMoveObject; 76 static jmethodID method_endMoveObject; 77 static jmethodID method_beginCopyObject; 78 static jmethodID method_endCopyObject; 79 static jmethodID method_getObjectReferences; 80 static jmethodID method_setObjectReferences; 81 82 static jfieldID field_context; 83 84 // MtpPropertyList methods 85 static jmethodID method_getCode; 86 static jmethodID method_getCount; 87 static jmethodID method_getObjectHandles; 88 static jmethodID method_getPropertyCodes; 89 static jmethodID method_getDataTypes; 90 static jmethodID method_getLongValues; 91 static jmethodID method_getStringValues; 92 93 94 IMtpDatabase* getMtpDatabase(JNIEnv *env, jobject database) { 95 return (IMtpDatabase *)env->GetLongField(database, field_context); 96 } 97 98 // ---------------------------------------------------------------------------- 99 100 class MtpDatabase : public IMtpDatabase { 101 private: 102 jobject mDatabase; 103 jintArray mIntBuffer; 104 jlongArray mLongBuffer; 105 jcharArray mStringBuffer; 106 107 public: 108 MtpDatabase(JNIEnv *env, jobject client); 109 virtual ~MtpDatabase(); 110 void cleanup(JNIEnv *env); 111 112 virtual MtpObjectHandle beginSendObject(const char* path, 113 MtpObjectFormat format, 114 MtpObjectHandle parent, 115 MtpStorageID storage); 116 117 virtual void endSendObject(MtpObjectHandle handle, bool succeeded); 118 119 virtual void rescanFile(const char* path, 120 MtpObjectHandle handle, 121 MtpObjectFormat format); 122 123 virtual MtpObjectHandleList* getObjectList(MtpStorageID storageID, 124 MtpObjectFormat format, 125 MtpObjectHandle parent); 126 127 virtual int getNumObjects(MtpStorageID storageID, 128 MtpObjectFormat format, 129 MtpObjectHandle parent); 130 131 // callee should delete[] the results from these 132 // results can be NULL 133 virtual MtpObjectFormatList* getSupportedPlaybackFormats(); 134 virtual MtpObjectFormatList* getSupportedCaptureFormats(); 135 virtual MtpObjectPropertyList* getSupportedObjectProperties(MtpObjectFormat format); 136 virtual MtpDevicePropertyList* getSupportedDeviceProperties(); 137 138 virtual MtpResponseCode getObjectPropertyValue(MtpObjectHandle handle, 139 MtpObjectProperty property, 140 MtpDataPacket& packet); 141 142 virtual MtpResponseCode setObjectPropertyValue(MtpObjectHandle handle, 143 MtpObjectProperty property, 144 MtpDataPacket& packet); 145 146 virtual MtpResponseCode getDevicePropertyValue(MtpDeviceProperty property, 147 MtpDataPacket& packet); 148 149 virtual MtpResponseCode setDevicePropertyValue(MtpDeviceProperty property, 150 MtpDataPacket& packet); 151 152 virtual MtpResponseCode resetDeviceProperty(MtpDeviceProperty property); 153 154 virtual MtpResponseCode getObjectPropertyList(MtpObjectHandle handle, 155 uint32_t format, uint32_t property, 156 int groupCode, int depth, 157 MtpDataPacket& packet); 158 159 virtual MtpResponseCode getObjectInfo(MtpObjectHandle handle, 160 MtpObjectInfo& info); 161 162 virtual void* getThumbnail(MtpObjectHandle handle, size_t& outThumbSize); 163 164 virtual MtpResponseCode getObjectFilePath(MtpObjectHandle handle, 165 MtpStringBuffer& outFilePath, 166 int64_t& outFileLength, 167 MtpObjectFormat& outFormat); 168 virtual MtpResponseCode beginDeleteObject(MtpObjectHandle handle); 169 virtual void endDeleteObject(MtpObjectHandle handle, bool succeeded); 170 171 bool getObjectPropertyInfo(MtpObjectProperty property, int& type); 172 bool getDevicePropertyInfo(MtpDeviceProperty property, int& type); 173 174 virtual MtpObjectHandleList* getObjectReferences(MtpObjectHandle handle); 175 176 virtual MtpResponseCode setObjectReferences(MtpObjectHandle handle, 177 MtpObjectHandleList* references); 178 179 virtual MtpProperty* getObjectPropertyDesc(MtpObjectProperty property, 180 MtpObjectFormat format); 181 182 virtual MtpProperty* getDevicePropertyDesc(MtpDeviceProperty property); 183 184 virtual MtpResponseCode beginMoveObject(MtpObjectHandle handle, MtpObjectHandle newParent, 185 MtpStorageID newStorage); 186 187 virtual void endMoveObject(MtpObjectHandle oldParent, MtpObjectHandle newParent, 188 MtpStorageID oldStorage, MtpStorageID newStorage, 189 MtpObjectHandle handle, bool succeeded); 190 191 virtual MtpResponseCode beginCopyObject(MtpObjectHandle handle, MtpObjectHandle newParent, 192 MtpStorageID newStorage); 193 virtual void endCopyObject(MtpObjectHandle handle, bool succeeded); 194 195 }; 196 197 // ---------------------------------------------------------------------------- 198 199 static void checkAndClearExceptionFromCallback(JNIEnv* env, const char* methodName) { 200 if (env->ExceptionCheck()) { 201 ALOGE("An exception was thrown by callback '%s'.", methodName); 202 LOGE_EX(env); 203 env->ExceptionClear(); 204 } 205 } 206 207 // ---------------------------------------------------------------------------- 208 209 MtpDatabase::MtpDatabase(JNIEnv *env, jobject client) 210 : mDatabase(env->NewGlobalRef(client)), 211 mIntBuffer(NULL), 212 mLongBuffer(NULL), 213 mStringBuffer(NULL) 214 { 215 // create buffers for out arguments 216 // we don't need to be thread-safe so this is OK 217 jintArray intArray = env->NewIntArray(3); 218 if (!intArray) { 219 return; // Already threw. 220 } 221 mIntBuffer = (jintArray)env->NewGlobalRef(intArray); 222 jlongArray longArray = env->NewLongArray(2); 223 if (!longArray) { 224 return; // Already threw. 225 } 226 mLongBuffer = (jlongArray)env->NewGlobalRef(longArray); 227 // Needs to be long enough to hold a file path for getObjectFilePath() 228 jcharArray charArray = env->NewCharArray(PATH_MAX + 1); 229 if (!charArray) { 230 return; // Already threw. 231 } 232 mStringBuffer = (jcharArray)env->NewGlobalRef(charArray); 233 } 234 235 void MtpDatabase::cleanup(JNIEnv *env) { 236 env->DeleteGlobalRef(mDatabase); 237 env->DeleteGlobalRef(mIntBuffer); 238 env->DeleteGlobalRef(mLongBuffer); 239 env->DeleteGlobalRef(mStringBuffer); 240 } 241 242 MtpDatabase::~MtpDatabase() { 243 } 244 245 MtpObjectHandle MtpDatabase::beginSendObject(const char* path, 246 MtpObjectFormat format, 247 MtpObjectHandle parent, 248 MtpStorageID storage) { 249 JNIEnv* env = AndroidRuntime::getJNIEnv(); 250 jstring pathStr = env->NewStringUTF(path); 251 MtpObjectHandle result = env->CallIntMethod(mDatabase, method_beginSendObject, 252 pathStr, (jint)format, (jint)parent, (jint)storage); 253 254 if (pathStr) 255 env->DeleteLocalRef(pathStr); 256 checkAndClearExceptionFromCallback(env, __FUNCTION__); 257 return result; 258 } 259 260 void MtpDatabase::endSendObject(MtpObjectHandle handle, bool succeeded) { 261 JNIEnv* env = AndroidRuntime::getJNIEnv(); 262 env->CallVoidMethod(mDatabase, method_endSendObject, (jint)handle, (jboolean)succeeded); 263 264 checkAndClearExceptionFromCallback(env, __FUNCTION__); 265 } 266 267 void MtpDatabase::rescanFile(const char* path, MtpObjectHandle handle, 268 MtpObjectFormat format) { 269 JNIEnv* env = AndroidRuntime::getJNIEnv(); 270 jstring pathStr = env->NewStringUTF(path); 271 env->CallVoidMethod(mDatabase, method_rescanFile, pathStr, 272 (jint)handle, (jint)format); 273 274 if (pathStr) 275 env->DeleteLocalRef(pathStr); 276 checkAndClearExceptionFromCallback(env, __FUNCTION__); 277 } 278 279 MtpObjectHandleList* MtpDatabase::getObjectList(MtpStorageID storageID, 280 MtpObjectFormat format, 281 MtpObjectHandle parent) { 282 JNIEnv* env = AndroidRuntime::getJNIEnv(); 283 jintArray array = (jintArray)env->CallObjectMethod(mDatabase, method_getObjectList, 284 (jint)storageID, (jint)format, (jint)parent); 285 if (!array) 286 return NULL; 287 MtpObjectHandleList* list = new MtpObjectHandleList(); 288 jint* handles = env->GetIntArrayElements(array, 0); 289 jsize length = env->GetArrayLength(array); 290 for (int i = 0; i < length; i++) 291 list->push_back(handles[i]); 292 env->ReleaseIntArrayElements(array, handles, 0); 293 env->DeleteLocalRef(array); 294 295 checkAndClearExceptionFromCallback(env, __FUNCTION__); 296 return list; 297 } 298 299 int MtpDatabase::getNumObjects(MtpStorageID storageID, 300 MtpObjectFormat format, 301 MtpObjectHandle parent) { 302 JNIEnv* env = AndroidRuntime::getJNIEnv(); 303 int result = env->CallIntMethod(mDatabase, method_getNumObjects, 304 (jint)storageID, (jint)format, (jint)parent); 305 306 checkAndClearExceptionFromCallback(env, __FUNCTION__); 307 return result; 308 } 309 310 MtpObjectFormatList* MtpDatabase::getSupportedPlaybackFormats() { 311 JNIEnv* env = AndroidRuntime::getJNIEnv(); 312 jintArray array = (jintArray)env->CallObjectMethod(mDatabase, 313 method_getSupportedPlaybackFormats); 314 if (!array) 315 return NULL; 316 MtpObjectFormatList* list = new MtpObjectFormatList(); 317 jint* formats = env->GetIntArrayElements(array, 0); 318 jsize length = env->GetArrayLength(array); 319 for (int i = 0; i < length; i++) 320 list->push_back(formats[i]); 321 env->ReleaseIntArrayElements(array, formats, 0); 322 env->DeleteLocalRef(array); 323 324 checkAndClearExceptionFromCallback(env, __FUNCTION__); 325 return list; 326 } 327 328 MtpObjectFormatList* MtpDatabase::getSupportedCaptureFormats() { 329 JNIEnv* env = AndroidRuntime::getJNIEnv(); 330 jintArray array = (jintArray)env->CallObjectMethod(mDatabase, 331 method_getSupportedCaptureFormats); 332 if (!array) 333 return NULL; 334 MtpObjectFormatList* list = new MtpObjectFormatList(); 335 jint* formats = env->GetIntArrayElements(array, 0); 336 jsize length = env->GetArrayLength(array); 337 for (int i = 0; i < length; i++) 338 list->push_back(formats[i]); 339 env->ReleaseIntArrayElements(array, formats, 0); 340 env->DeleteLocalRef(array); 341 342 checkAndClearExceptionFromCallback(env, __FUNCTION__); 343 return list; 344 } 345 346 MtpObjectPropertyList* MtpDatabase::getSupportedObjectProperties(MtpObjectFormat format) { 347 JNIEnv* env = AndroidRuntime::getJNIEnv(); 348 jintArray array = (jintArray)env->CallObjectMethod(mDatabase, 349 method_getSupportedObjectProperties, (jint)format); 350 if (!array) 351 return NULL; 352 MtpObjectPropertyList* list = new MtpObjectPropertyList(); 353 jint* properties = env->GetIntArrayElements(array, 0); 354 jsize length = env->GetArrayLength(array); 355 for (int i = 0; i < length; i++) 356 list->push_back(properties[i]); 357 env->ReleaseIntArrayElements(array, properties, 0); 358 env->DeleteLocalRef(array); 359 360 checkAndClearExceptionFromCallback(env, __FUNCTION__); 361 return list; 362 } 363 364 MtpDevicePropertyList* MtpDatabase::getSupportedDeviceProperties() { 365 JNIEnv* env = AndroidRuntime::getJNIEnv(); 366 jintArray array = (jintArray)env->CallObjectMethod(mDatabase, 367 method_getSupportedDeviceProperties); 368 if (!array) 369 return NULL; 370 MtpDevicePropertyList* list = new MtpDevicePropertyList(); 371 jint* properties = env->GetIntArrayElements(array, 0); 372 jsize length = env->GetArrayLength(array); 373 for (int i = 0; i < length; i++) 374 list->push_back(properties[i]); 375 env->ReleaseIntArrayElements(array, properties, 0); 376 env->DeleteLocalRef(array); 377 378 checkAndClearExceptionFromCallback(env, __FUNCTION__); 379 return list; 380 } 381 382 MtpResponseCode MtpDatabase::getObjectPropertyValue(MtpObjectHandle handle, 383 MtpObjectProperty property, 384 MtpDataPacket& packet) { 385 static_assert(sizeof(jint) >= sizeof(MtpObjectHandle), 386 "Casting MtpObjectHandle to jint loses a value"); 387 static_assert(sizeof(jint) >= sizeof(MtpObjectProperty), 388 "Casting MtpObjectProperty to jint loses a value"); 389 JNIEnv* env = AndroidRuntime::getJNIEnv(); 390 jobject list = env->CallObjectMethod( 391 mDatabase, 392 method_getObjectPropertyList, 393 static_cast<jint>(handle), 394 0, 395 static_cast<jint>(property), 396 0, 397 0); 398 MtpResponseCode result = env->CallIntMethod(list, method_getCode); 399 jint count = env->CallIntMethod(list, method_getCount); 400 if (count != 1) 401 result = MTP_RESPONSE_GENERAL_ERROR; 402 403 if (result == MTP_RESPONSE_OK) { 404 jintArray objectHandlesArray = (jintArray)env->CallObjectMethod(list, method_getObjectHandles); 405 jintArray propertyCodesArray = (jintArray)env->CallObjectMethod(list, method_getPropertyCodes); 406 jintArray dataTypesArray = (jintArray)env->CallObjectMethod(list, method_getDataTypes); 407 jlongArray longValuesArray = (jlongArray)env->CallObjectMethod(list, method_getLongValues); 408 jobjectArray stringValuesArray = (jobjectArray)env->CallObjectMethod(list, method_getStringValues); 409 410 jint* objectHandles = env->GetIntArrayElements(objectHandlesArray, 0); 411 jint* propertyCodes = env->GetIntArrayElements(propertyCodesArray, 0); 412 jint* dataTypes = env->GetIntArrayElements(dataTypesArray, 0); 413 jlong* longValues = env->GetLongArrayElements(longValuesArray, 0); 414 415 int type = dataTypes[0]; 416 jlong longValue = (longValues ? longValues[0] : 0); 417 418 switch (type) { 419 case MTP_TYPE_INT8: 420 packet.putInt8(longValue); 421 break; 422 case MTP_TYPE_UINT8: 423 packet.putUInt8(longValue); 424 break; 425 case MTP_TYPE_INT16: 426 packet.putInt16(longValue); 427 break; 428 case MTP_TYPE_UINT16: 429 packet.putUInt16(longValue); 430 break; 431 case MTP_TYPE_INT32: 432 packet.putInt32(longValue); 433 break; 434 case MTP_TYPE_UINT32: 435 packet.putUInt32(longValue); 436 break; 437 case MTP_TYPE_INT64: 438 packet.putInt64(longValue); 439 break; 440 case MTP_TYPE_UINT64: 441 packet.putUInt64(longValue); 442 break; 443 case MTP_TYPE_INT128: 444 packet.putInt128(longValue); 445 break; 446 case MTP_TYPE_UINT128: 447 packet.putUInt128(longValue); 448 break; 449 case MTP_TYPE_STR: 450 { 451 jstring stringValue = (jstring)env->GetObjectArrayElement(stringValuesArray, 0); 452 const char* str = (stringValue ? env->GetStringUTFChars(stringValue, NULL) : NULL); 453 if (stringValue) { 454 packet.putString(str); 455 env->ReleaseStringUTFChars(stringValue, str); 456 } else { 457 packet.putEmptyString(); 458 } 459 env->DeleteLocalRef(stringValue); 460 break; 461 } 462 default: 463 ALOGE("unsupported type in getObjectPropertyValue\n"); 464 result = MTP_RESPONSE_INVALID_OBJECT_PROP_FORMAT; 465 } 466 env->ReleaseIntArrayElements(objectHandlesArray, objectHandles, 0); 467 env->ReleaseIntArrayElements(propertyCodesArray, propertyCodes, 0); 468 env->ReleaseIntArrayElements(dataTypesArray, dataTypes, 0); 469 env->ReleaseLongArrayElements(longValuesArray, longValues, 0); 470 471 env->DeleteLocalRef(objectHandlesArray); 472 env->DeleteLocalRef(propertyCodesArray); 473 env->DeleteLocalRef(dataTypesArray); 474 env->DeleteLocalRef(longValuesArray); 475 env->DeleteLocalRef(stringValuesArray); 476 } 477 478 env->DeleteLocalRef(list); 479 checkAndClearExceptionFromCallback(env, __FUNCTION__); 480 return result; 481 } 482 483 static bool readLongValue(int type, MtpDataPacket& packet, jlong& longValue) { 484 switch (type) { 485 case MTP_TYPE_INT8: { 486 int8_t temp; 487 if (!packet.getInt8(temp)) return false; 488 longValue = temp; 489 break; 490 } 491 case MTP_TYPE_UINT8: { 492 uint8_t temp; 493 if (!packet.getUInt8(temp)) return false; 494 longValue = temp; 495 break; 496 } 497 case MTP_TYPE_INT16: { 498 int16_t temp; 499 if (!packet.getInt16(temp)) return false; 500 longValue = temp; 501 break; 502 } 503 case MTP_TYPE_UINT16: { 504 uint16_t temp; 505 if (!packet.getUInt16(temp)) return false; 506 longValue = temp; 507 break; 508 } 509 case MTP_TYPE_INT32: { 510 int32_t temp; 511 if (!packet.getInt32(temp)) return false; 512 longValue = temp; 513 break; 514 } 515 case MTP_TYPE_UINT32: { 516 uint32_t temp; 517 if (!packet.getUInt32(temp)) return false; 518 longValue = temp; 519 break; 520 } 521 case MTP_TYPE_INT64: { 522 int64_t temp; 523 if (!packet.getInt64(temp)) return false; 524 longValue = temp; 525 break; 526 } 527 case MTP_TYPE_UINT64: { 528 uint64_t temp; 529 if (!packet.getUInt64(temp)) return false; 530 longValue = temp; 531 break; 532 } 533 default: 534 ALOGE("unsupported type in readLongValue"); 535 return false; 536 } 537 return true; 538 } 539 540 MtpResponseCode MtpDatabase::setObjectPropertyValue(MtpObjectHandle handle, 541 MtpObjectProperty property, 542 MtpDataPacket& packet) { 543 int type; 544 545 if (!getObjectPropertyInfo(property, type)) 546 return MTP_RESPONSE_OBJECT_PROP_NOT_SUPPORTED; 547 548 JNIEnv* env = AndroidRuntime::getJNIEnv(); 549 jlong longValue = 0; 550 jstring stringValue = NULL; 551 MtpResponseCode result = MTP_RESPONSE_INVALID_OBJECT_PROP_FORMAT; 552 553 if (type == MTP_TYPE_STR) { 554 MtpStringBuffer buffer; 555 if (!packet.getString(buffer)) goto fail; 556 stringValue = env->NewStringUTF((const char *)buffer); 557 } else { 558 if (!readLongValue(type, packet, longValue)) goto fail; 559 } 560 561 result = env->CallIntMethod(mDatabase, method_setObjectProperty, 562 (jint)handle, (jint)property, longValue, stringValue); 563 if (stringValue) 564 env->DeleteLocalRef(stringValue); 565 566 fail: 567 checkAndClearExceptionFromCallback(env, __FUNCTION__); 568 return result; 569 } 570 571 MtpResponseCode MtpDatabase::getDevicePropertyValue(MtpDeviceProperty property, 572 MtpDataPacket& packet) { 573 JNIEnv* env = AndroidRuntime::getJNIEnv(); 574 int type; 575 576 if (!getDevicePropertyInfo(property, type)) 577 return MTP_RESPONSE_DEVICE_PROP_NOT_SUPPORTED; 578 579 jint result = env->CallIntMethod(mDatabase, method_getDeviceProperty, 580 (jint)property, mLongBuffer, mStringBuffer); 581 if (result != MTP_RESPONSE_OK) { 582 checkAndClearExceptionFromCallback(env, __FUNCTION__); 583 return result; 584 } 585 586 jlong* longValues = env->GetLongArrayElements(mLongBuffer, 0); 587 jlong longValue = longValues[0]; 588 env->ReleaseLongArrayElements(mLongBuffer, longValues, 0); 589 590 switch (type) { 591 case MTP_TYPE_INT8: 592 packet.putInt8(longValue); 593 break; 594 case MTP_TYPE_UINT8: 595 packet.putUInt8(longValue); 596 break; 597 case MTP_TYPE_INT16: 598 packet.putInt16(longValue); 599 break; 600 case MTP_TYPE_UINT16: 601 packet.putUInt16(longValue); 602 break; 603 case MTP_TYPE_INT32: 604 packet.putInt32(longValue); 605 break; 606 case MTP_TYPE_UINT32: 607 packet.putUInt32(longValue); 608 break; 609 case MTP_TYPE_INT64: 610 packet.putInt64(longValue); 611 break; 612 case MTP_TYPE_UINT64: 613 packet.putUInt64(longValue); 614 break; 615 case MTP_TYPE_INT128: 616 packet.putInt128(longValue); 617 break; 618 case MTP_TYPE_UINT128: 619 packet.putInt128(longValue); 620 break; 621 case MTP_TYPE_STR: 622 { 623 jchar* str = env->GetCharArrayElements(mStringBuffer, 0); 624 packet.putString(str); 625 env->ReleaseCharArrayElements(mStringBuffer, str, 0); 626 break; 627 } 628 default: 629 ALOGE("unsupported type in getDevicePropertyValue\n"); 630 return MTP_RESPONSE_INVALID_DEVICE_PROP_FORMAT; 631 } 632 633 checkAndClearExceptionFromCallback(env, __FUNCTION__); 634 return MTP_RESPONSE_OK; 635 } 636 637 MtpResponseCode MtpDatabase::setDevicePropertyValue(MtpDeviceProperty property, 638 MtpDataPacket& packet) { 639 int type; 640 641 if (!getDevicePropertyInfo(property, type)) 642 return MTP_RESPONSE_DEVICE_PROP_NOT_SUPPORTED; 643 644 JNIEnv* env = AndroidRuntime::getJNIEnv(); 645 jlong longValue = 0; 646 jstring stringValue = NULL; 647 MtpResponseCode result = MTP_RESPONSE_INVALID_DEVICE_PROP_FORMAT; 648 649 if (type == MTP_TYPE_STR) { 650 MtpStringBuffer buffer; 651 if (!packet.getString(buffer)) goto fail; 652 stringValue = env->NewStringUTF((const char *)buffer); 653 } else { 654 if (!readLongValue(type, packet, longValue)) goto fail; 655 } 656 657 result = env->CallIntMethod(mDatabase, method_setDeviceProperty, 658 (jint)property, longValue, stringValue); 659 if (stringValue) 660 env->DeleteLocalRef(stringValue); 661 662 fail: 663 checkAndClearExceptionFromCallback(env, __FUNCTION__); 664 return result; 665 } 666 667 MtpResponseCode MtpDatabase::resetDeviceProperty(MtpDeviceProperty /*property*/) { 668 return -1; 669 } 670 671 MtpResponseCode MtpDatabase::getObjectPropertyList(MtpObjectHandle handle, 672 uint32_t format, uint32_t property, 673 int groupCode, int depth, 674 MtpDataPacket& packet) { 675 static_assert(sizeof(jint) >= sizeof(MtpObjectHandle), 676 "Casting MtpObjectHandle to jint loses a value"); 677 JNIEnv* env = AndroidRuntime::getJNIEnv(); 678 jobject list = env->CallObjectMethod( 679 mDatabase, 680 method_getObjectPropertyList, 681 static_cast<jint>(handle), 682 static_cast<jint>(format), 683 static_cast<jint>(property), 684 static_cast<jint>(groupCode), 685 static_cast<jint>(depth)); 686 checkAndClearExceptionFromCallback(env, __FUNCTION__); 687 if (!list) 688 return MTP_RESPONSE_GENERAL_ERROR; 689 int count = env->CallIntMethod(list, method_getCount); 690 MtpResponseCode result = env->CallIntMethod(list, method_getCode); 691 692 packet.putUInt32(count); 693 if (count > 0) { 694 jintArray objectHandlesArray = (jintArray)env->CallObjectMethod(list, method_getObjectHandles); 695 jintArray propertyCodesArray = (jintArray)env->CallObjectMethod(list, method_getPropertyCodes); 696 jintArray dataTypesArray = (jintArray)env->CallObjectMethod(list, method_getDataTypes); 697 jlongArray longValuesArray = (jlongArray)env->CallObjectMethod(list, method_getLongValues); 698 jobjectArray stringValuesArray = (jobjectArray)env->CallObjectMethod(list, method_getStringValues); 699 700 jint* objectHandles = env->GetIntArrayElements(objectHandlesArray, 0); 701 jint* propertyCodes = env->GetIntArrayElements(propertyCodesArray, 0); 702 jint* dataTypes = env->GetIntArrayElements(dataTypesArray, 0); 703 jlong* longValues = (longValuesArray ? env->GetLongArrayElements(longValuesArray, 0) : NULL); 704 705 for (int i = 0; i < count; i++) { 706 packet.putUInt32(objectHandles[i]); 707 packet.putUInt16(propertyCodes[i]); 708 int type = dataTypes[i]; 709 packet.putUInt16(type); 710 711 switch (type) { 712 case MTP_TYPE_INT8: 713 packet.putInt8(longValues[i]); 714 break; 715 case MTP_TYPE_UINT8: 716 packet.putUInt8(longValues[i]); 717 break; 718 case MTP_TYPE_INT16: 719 packet.putInt16(longValues[i]); 720 break; 721 case MTP_TYPE_UINT16: 722 packet.putUInt16(longValues[i]); 723 break; 724 case MTP_TYPE_INT32: 725 packet.putInt32(longValues[i]); 726 break; 727 case MTP_TYPE_UINT32: 728 packet.putUInt32(longValues[i]); 729 break; 730 case MTP_TYPE_INT64: 731 packet.putInt64(longValues[i]); 732 break; 733 case MTP_TYPE_UINT64: 734 packet.putUInt64(longValues[i]); 735 break; 736 case MTP_TYPE_INT128: 737 packet.putInt128(longValues[i]); 738 break; 739 case MTP_TYPE_UINT128: 740 packet.putUInt128(longValues[i]); 741 break; 742 case MTP_TYPE_STR: { 743 jstring value = (jstring)env->GetObjectArrayElement(stringValuesArray, i); 744 const char *valueStr = (value ? env->GetStringUTFChars(value, NULL) : NULL); 745 if (valueStr) { 746 packet.putString(valueStr); 747 env->ReleaseStringUTFChars(value, valueStr); 748 } else { 749 packet.putEmptyString(); 750 } 751 env->DeleteLocalRef(value); 752 break; 753 } 754 default: 755 ALOGE("bad or unsupported data type in MtpDatabase::getObjectPropertyList"); 756 break; 757 } 758 } 759 760 env->ReleaseIntArrayElements(objectHandlesArray, objectHandles, 0); 761 env->ReleaseIntArrayElements(propertyCodesArray, propertyCodes, 0); 762 env->ReleaseIntArrayElements(dataTypesArray, dataTypes, 0); 763 env->ReleaseLongArrayElements(longValuesArray, longValues, 0); 764 765 env->DeleteLocalRef(objectHandlesArray); 766 env->DeleteLocalRef(propertyCodesArray); 767 env->DeleteLocalRef(dataTypesArray); 768 env->DeleteLocalRef(longValuesArray); 769 env->DeleteLocalRef(stringValuesArray); 770 } 771 772 env->DeleteLocalRef(list); 773 checkAndClearExceptionFromCallback(env, __FUNCTION__); 774 return result; 775 } 776 777 static void foreachentry(ExifEntry *entry, void* /* user */) { 778 char buf[1024]; 779 ALOGI("entry %x, format %d, size %d: %s", 780 entry->tag, entry->format, entry->size, exif_entry_get_value(entry, buf, sizeof(buf))); 781 } 782 783 static void foreachcontent(ExifContent *content, void *user) { 784 ALOGI("content %d", exif_content_get_ifd(content)); 785 exif_content_foreach_entry(content, foreachentry, user); 786 } 787 788 static long getLongFromExifEntry(ExifEntry *e) { 789 ExifByteOrder o = exif_data_get_byte_order(e->parent->parent); 790 return exif_get_long(e->data, o); 791 } 792 793 static ExifData *getExifFromExtractor(const char *path) { 794 std::unique_ptr<uint8_t[]> exifBuf; 795 ExifData *exifdata = NULL; 796 797 FILE *fp = fopen (path, "rb"); 798 if (!fp) { 799 ALOGE("failed to open file"); 800 return NULL; 801 } 802 803 sp<NuMediaExtractor> extractor = new NuMediaExtractor(); 804 fseek(fp, 0L, SEEK_END); 805 if (extractor->setDataSource(fileno(fp), 0, ftell(fp)) != OK) { 806 ALOGE("failed to setDataSource"); 807 fclose(fp); 808 return NULL; 809 } 810 811 off64_t offset; 812 size_t size; 813 if (extractor->getExifOffsetSize(&offset, &size) != OK) { 814 fclose(fp); 815 return NULL; 816 } 817 818 exifBuf.reset(new uint8_t[size]); 819 fseek(fp, offset, SEEK_SET); 820 if (fread(exifBuf.get(), 1, size, fp) == size) { 821 exifdata = exif_data_new_from_data(exifBuf.get(), size); 822 } 823 824 fclose(fp); 825 return exifdata; 826 } 827 828 MtpResponseCode MtpDatabase::getObjectInfo(MtpObjectHandle handle, 829 MtpObjectInfo& info) { 830 MtpStringBuffer path; 831 int64_t length; 832 MtpObjectFormat format; 833 834 MtpResponseCode result = getObjectFilePath(handle, path, length, format); 835 if (result != MTP_RESPONSE_OK) { 836 return result; 837 } 838 info.mCompressedSize = (length > 0xFFFFFFFFLL ? 0xFFFFFFFF : (uint32_t)length); 839 840 JNIEnv* env = AndroidRuntime::getJNIEnv(); 841 if (!env->CallBooleanMethod(mDatabase, method_getObjectInfo, 842 (jint)handle, mIntBuffer, mStringBuffer, mLongBuffer)) { 843 return MTP_RESPONSE_INVALID_OBJECT_HANDLE; 844 } 845 846 jint* intValues = env->GetIntArrayElements(mIntBuffer, 0); 847 info.mStorageID = intValues[0]; 848 info.mFormat = intValues[1]; 849 info.mParent = intValues[2]; 850 env->ReleaseIntArrayElements(mIntBuffer, intValues, 0); 851 852 jlong* longValues = env->GetLongArrayElements(mLongBuffer, 0); 853 info.mDateCreated = longValues[0]; 854 info.mDateModified = longValues[1]; 855 env->ReleaseLongArrayElements(mLongBuffer, longValues, 0); 856 857 if ((false)) { 858 info.mAssociationType = (format == MTP_FORMAT_ASSOCIATION ? 859 MTP_ASSOCIATION_TYPE_GENERIC_FOLDER : 860 MTP_ASSOCIATION_TYPE_UNDEFINED); 861 } 862 info.mAssociationType = MTP_ASSOCIATION_TYPE_UNDEFINED; 863 864 jchar* str = env->GetCharArrayElements(mStringBuffer, 0); 865 MtpStringBuffer temp(str); 866 info.mName = strdup(temp); 867 env->ReleaseCharArrayElements(mStringBuffer, str, 0); 868 869 // read EXIF data for thumbnail information 870 switch (info.mFormat) { 871 case MTP_FORMAT_EXIF_JPEG: 872 case MTP_FORMAT_HEIF: 873 case MTP_FORMAT_JFIF: { 874 ExifData *exifdata; 875 if (info.mFormat == MTP_FORMAT_HEIF) { 876 exifdata = getExifFromExtractor(path); 877 } else { 878 exifdata = exif_data_new_from_file(path); 879 } 880 if (exifdata) { 881 if ((false)) { 882 exif_data_foreach_content(exifdata, foreachcontent, NULL); 883 } 884 885 ExifEntry *w = exif_content_get_entry( 886 exifdata->ifd[EXIF_IFD_EXIF], EXIF_TAG_PIXEL_X_DIMENSION); 887 ExifEntry *h = exif_content_get_entry( 888 exifdata->ifd[EXIF_IFD_EXIF], EXIF_TAG_PIXEL_Y_DIMENSION); 889 info.mThumbCompressedSize = exifdata->data ? exifdata->size : 0; 890 info.mThumbFormat = MTP_FORMAT_EXIF_JPEG; 891 info.mImagePixWidth = w ? getLongFromExifEntry(w) : 0; 892 info.mImagePixHeight = h ? getLongFromExifEntry(h) : 0; 893 exif_data_unref(exifdata); 894 } 895 break; 896 } 897 898 // Except DNG, all supported RAW image formats are not defined in PTP 1.2 specification. 899 // Most of RAW image formats are based on TIFF or TIFF/EP. To render Fuji's RAF format, 900 // it checks MTP_FORMAT_DEFINED case since it's designed as a custom format. 901 case MTP_FORMAT_DNG: 902 case MTP_FORMAT_TIFF: 903 case MTP_FORMAT_TIFF_EP: 904 case MTP_FORMAT_DEFINED: { 905 String8 temp(path); 906 std::unique_ptr<FileStream> stream(new FileStream(temp)); 907 piex::PreviewImageData image_data; 908 if (!GetExifFromRawImage(stream.get(), temp, image_data)) { 909 // Couldn't parse EXIF data from a image file via piex. 910 break; 911 } 912 913 info.mThumbCompressedSize = image_data.thumbnail.length; 914 info.mThumbFormat = MTP_FORMAT_EXIF_JPEG; 915 info.mImagePixWidth = image_data.full_width; 916 info.mImagePixHeight = image_data.full_height; 917 918 break; 919 } 920 } 921 922 checkAndClearExceptionFromCallback(env, __FUNCTION__); 923 return MTP_RESPONSE_OK; 924 } 925 926 void* MtpDatabase::getThumbnail(MtpObjectHandle handle, size_t& outThumbSize) { 927 MtpStringBuffer path; 928 int64_t length; 929 MtpObjectFormat format; 930 void* result = NULL; 931 outThumbSize = 0; 932 933 if (getObjectFilePath(handle, path, length, format) == MTP_RESPONSE_OK) { 934 switch (format) { 935 case MTP_FORMAT_EXIF_JPEG: 936 case MTP_FORMAT_HEIF: 937 case MTP_FORMAT_JFIF: { 938 ExifData *exifdata; 939 if (format == MTP_FORMAT_HEIF) { 940 exifdata = getExifFromExtractor(path); 941 } else { 942 exifdata = exif_data_new_from_file(path); 943 } 944 if (exifdata) { 945 if (exifdata->data) { 946 result = malloc(exifdata->size); 947 if (result) { 948 memcpy(result, exifdata->data, exifdata->size); 949 outThumbSize = exifdata->size; 950 } 951 } 952 exif_data_unref(exifdata); 953 } 954 break; 955 } 956 957 // See the above comment on getObjectInfo() method. 958 case MTP_FORMAT_DNG: 959 case MTP_FORMAT_TIFF: 960 case MTP_FORMAT_TIFF_EP: 961 case MTP_FORMAT_DEFINED: { 962 String8 temp(path); 963 std::unique_ptr<FileStream> stream(new FileStream(temp)); 964 piex::PreviewImageData image_data; 965 if (!GetExifFromRawImage(stream.get(), temp, image_data)) { 966 // Couldn't parse EXIF data from a image file via piex. 967 break; 968 } 969 970 if (image_data.thumbnail.length == 0 971 || image_data.thumbnail.format != ::piex::Image::kJpegCompressed) { 972 // No thumbnail or non jpeg thumbnail. 973 break; 974 } 975 976 result = malloc(image_data.thumbnail.length); 977 if (result) { 978 piex::Error err = stream.get()->GetData( 979 image_data.thumbnail.offset, 980 image_data.thumbnail.length, 981 (std::uint8_t *)result); 982 if (err == piex::Error::kOk) { 983 outThumbSize = image_data.thumbnail.length; 984 } else { 985 free(result); 986 result = NULL; 987 } 988 } 989 break; 990 } 991 } 992 } 993 994 return result; 995 } 996 997 MtpResponseCode MtpDatabase::getObjectFilePath(MtpObjectHandle handle, 998 MtpStringBuffer& outFilePath, 999 int64_t& outFileLength, 1000 MtpObjectFormat& outFormat) { 1001 JNIEnv* env = AndroidRuntime::getJNIEnv(); 1002 jint result = env->CallIntMethod(mDatabase, method_getObjectFilePath, 1003 (jint)handle, mStringBuffer, mLongBuffer); 1004 if (result != MTP_RESPONSE_OK) { 1005 checkAndClearExceptionFromCallback(env, __FUNCTION__); 1006 return result; 1007 } 1008 1009 jchar* str = env->GetCharArrayElements(mStringBuffer, 0); 1010 outFilePath.set(str); 1011 env->ReleaseCharArrayElements(mStringBuffer, str, 0); 1012 1013 jlong* longValues = env->GetLongArrayElements(mLongBuffer, 0); 1014 outFileLength = longValues[0]; 1015 outFormat = longValues[1]; 1016 env->ReleaseLongArrayElements(mLongBuffer, longValues, 0); 1017 1018 checkAndClearExceptionFromCallback(env, __FUNCTION__); 1019 return result; 1020 } 1021 1022 MtpResponseCode MtpDatabase::beginDeleteObject(MtpObjectHandle handle) { 1023 JNIEnv* env = AndroidRuntime::getJNIEnv(); 1024 MtpResponseCode result = env->CallIntMethod(mDatabase, method_beginDeleteObject, (jint)handle); 1025 1026 checkAndClearExceptionFromCallback(env, __FUNCTION__); 1027 return result; 1028 } 1029 1030 void MtpDatabase::endDeleteObject(MtpObjectHandle handle, bool succeeded) { 1031 JNIEnv* env = AndroidRuntime::getJNIEnv(); 1032 env->CallVoidMethod(mDatabase, method_endDeleteObject, (jint)handle, (jboolean) succeeded); 1033 1034 checkAndClearExceptionFromCallback(env, __FUNCTION__); 1035 } 1036 1037 MtpResponseCode MtpDatabase::beginMoveObject(MtpObjectHandle handle, MtpObjectHandle newParent, 1038 MtpStorageID newStorage) { 1039 JNIEnv* env = AndroidRuntime::getJNIEnv(); 1040 MtpResponseCode result = env->CallIntMethod(mDatabase, method_beginMoveObject, 1041 (jint)handle, (jint)newParent, (jint) newStorage); 1042 1043 checkAndClearExceptionFromCallback(env, __FUNCTION__); 1044 return result; 1045 } 1046 1047 void MtpDatabase::endMoveObject(MtpObjectHandle oldParent, MtpObjectHandle newParent, 1048 MtpStorageID oldStorage, MtpStorageID newStorage, 1049 MtpObjectHandle handle, bool succeeded) { 1050 JNIEnv* env = AndroidRuntime::getJNIEnv(); 1051 env->CallVoidMethod(mDatabase, method_endMoveObject, 1052 (jint)oldParent, (jint) newParent, (jint) oldStorage, (jint) newStorage, 1053 (jint) handle, (jboolean) succeeded); 1054 1055 checkAndClearExceptionFromCallback(env, __FUNCTION__); 1056 } 1057 1058 MtpResponseCode MtpDatabase::beginCopyObject(MtpObjectHandle handle, MtpObjectHandle newParent, 1059 MtpStorageID newStorage) { 1060 JNIEnv* env = AndroidRuntime::getJNIEnv(); 1061 MtpResponseCode result = env->CallIntMethod(mDatabase, method_beginCopyObject, 1062 (jint)handle, (jint)newParent, (jint) newStorage); 1063 1064 checkAndClearExceptionFromCallback(env, __FUNCTION__); 1065 return result; 1066 } 1067 1068 void MtpDatabase::endCopyObject(MtpObjectHandle handle, bool succeeded) { 1069 JNIEnv* env = AndroidRuntime::getJNIEnv(); 1070 env->CallVoidMethod(mDatabase, method_endCopyObject, (jint)handle, (jboolean)succeeded); 1071 1072 checkAndClearExceptionFromCallback(env, __FUNCTION__); 1073 } 1074 1075 1076 struct PropertyTableEntry { 1077 MtpObjectProperty property; 1078 int type; 1079 }; 1080 1081 static const PropertyTableEntry kObjectPropertyTable[] = { 1082 { MTP_PROPERTY_STORAGE_ID, MTP_TYPE_UINT32 }, 1083 { MTP_PROPERTY_OBJECT_FORMAT, MTP_TYPE_UINT16 }, 1084 { MTP_PROPERTY_PROTECTION_STATUS, MTP_TYPE_UINT16 }, 1085 { MTP_PROPERTY_OBJECT_SIZE, MTP_TYPE_UINT64 }, 1086 { MTP_PROPERTY_OBJECT_FILE_NAME, MTP_TYPE_STR }, 1087 { MTP_PROPERTY_DATE_MODIFIED, MTP_TYPE_STR }, 1088 { MTP_PROPERTY_PARENT_OBJECT, MTP_TYPE_UINT32 }, 1089 { MTP_PROPERTY_PERSISTENT_UID, MTP_TYPE_UINT128 }, 1090 { MTP_PROPERTY_NAME, MTP_TYPE_STR }, 1091 { MTP_PROPERTY_DISPLAY_NAME, MTP_TYPE_STR }, 1092 { MTP_PROPERTY_DATE_ADDED, MTP_TYPE_STR }, 1093 { MTP_PROPERTY_ARTIST, MTP_TYPE_STR }, 1094 { MTP_PROPERTY_ALBUM_NAME, MTP_TYPE_STR }, 1095 { MTP_PROPERTY_ALBUM_ARTIST, MTP_TYPE_STR }, 1096 { MTP_PROPERTY_TRACK, MTP_TYPE_UINT16 }, 1097 { MTP_PROPERTY_ORIGINAL_RELEASE_DATE, MTP_TYPE_STR }, 1098 { MTP_PROPERTY_GENRE, MTP_TYPE_STR }, 1099 { MTP_PROPERTY_COMPOSER, MTP_TYPE_STR }, 1100 { MTP_PROPERTY_DURATION, MTP_TYPE_UINT32 }, 1101 { MTP_PROPERTY_DESCRIPTION, MTP_TYPE_STR }, 1102 { MTP_PROPERTY_AUDIO_WAVE_CODEC, MTP_TYPE_UINT32 }, 1103 { MTP_PROPERTY_BITRATE_TYPE, MTP_TYPE_UINT16 }, 1104 { MTP_PROPERTY_AUDIO_BITRATE, MTP_TYPE_UINT32 }, 1105 { MTP_PROPERTY_NUMBER_OF_CHANNELS,MTP_TYPE_UINT16 }, 1106 { MTP_PROPERTY_SAMPLE_RATE, MTP_TYPE_UINT32 }, 1107 }; 1108 1109 static const PropertyTableEntry kDevicePropertyTable[] = { 1110 { MTP_DEVICE_PROPERTY_SYNCHRONIZATION_PARTNER, MTP_TYPE_STR }, 1111 { MTP_DEVICE_PROPERTY_DEVICE_FRIENDLY_NAME, MTP_TYPE_STR }, 1112 { MTP_DEVICE_PROPERTY_IMAGE_SIZE, MTP_TYPE_STR }, 1113 { MTP_DEVICE_PROPERTY_BATTERY_LEVEL, MTP_TYPE_UINT8 }, 1114 { MTP_DEVICE_PROPERTY_PERCEIVED_DEVICE_TYPE, MTP_TYPE_UINT32 }, 1115 }; 1116 1117 bool MtpDatabase::getObjectPropertyInfo(MtpObjectProperty property, int& type) { 1118 int count = sizeof(kObjectPropertyTable) / sizeof(kObjectPropertyTable[0]); 1119 const PropertyTableEntry* entry = kObjectPropertyTable; 1120 for (int i = 0; i < count; i++, entry++) { 1121 if (entry->property == property) { 1122 type = entry->type; 1123 return true; 1124 } 1125 } 1126 return false; 1127 } 1128 1129 bool MtpDatabase::getDevicePropertyInfo(MtpDeviceProperty property, int& type) { 1130 int count = sizeof(kDevicePropertyTable) / sizeof(kDevicePropertyTable[0]); 1131 const PropertyTableEntry* entry = kDevicePropertyTable; 1132 for (int i = 0; i < count; i++, entry++) { 1133 if (entry->property == property) { 1134 type = entry->type; 1135 return true; 1136 } 1137 } 1138 return false; 1139 } 1140 1141 MtpObjectHandleList* MtpDatabase::getObjectReferences(MtpObjectHandle handle) { 1142 JNIEnv* env = AndroidRuntime::getJNIEnv(); 1143 jintArray array = (jintArray)env->CallObjectMethod(mDatabase, method_getObjectReferences, 1144 (jint)handle); 1145 if (!array) 1146 return NULL; 1147 MtpObjectHandleList* list = new MtpObjectHandleList(); 1148 jint* handles = env->GetIntArrayElements(array, 0); 1149 jsize length = env->GetArrayLength(array); 1150 for (int i = 0; i < length; i++) 1151 list->push_back(handles[i]); 1152 env->ReleaseIntArrayElements(array, handles, 0); 1153 env->DeleteLocalRef(array); 1154 1155 checkAndClearExceptionFromCallback(env, __FUNCTION__); 1156 return list; 1157 } 1158 1159 MtpResponseCode MtpDatabase::setObjectReferences(MtpObjectHandle handle, 1160 MtpObjectHandleList* references) { 1161 JNIEnv* env = AndroidRuntime::getJNIEnv(); 1162 int count = references->size(); 1163 jintArray array = env->NewIntArray(count); 1164 if (!array) { 1165 ALOGE("out of memory in setObjectReferences"); 1166 return false; 1167 } 1168 jint* handles = env->GetIntArrayElements(array, 0); 1169 for (int i = 0; i < count; i++) 1170 handles[i] = (*references)[i]; 1171 env->ReleaseIntArrayElements(array, handles, 0); 1172 MtpResponseCode result = env->CallIntMethod(mDatabase, method_setObjectReferences, 1173 (jint)handle, array); 1174 env->DeleteLocalRef(array); 1175 1176 checkAndClearExceptionFromCallback(env, __FUNCTION__); 1177 return result; 1178 } 1179 1180 MtpProperty* MtpDatabase::getObjectPropertyDesc(MtpObjectProperty property, 1181 MtpObjectFormat format) { 1182 static const int channelEnum[] = { 1183 1, // mono 1184 2, // stereo 1185 3, // 2.1 1186 4, // 3 1187 5, // 3.1 1188 6, // 4 1189 7, // 4.1 1190 8, // 5 1191 9, // 5.1 1192 }; 1193 static const int bitrateEnum[] = { 1194 1, // fixed rate 1195 2, // variable rate 1196 }; 1197 1198 MtpProperty* result = NULL; 1199 switch (property) { 1200 case MTP_PROPERTY_OBJECT_FORMAT: 1201 // use format as default value 1202 result = new MtpProperty(property, MTP_TYPE_UINT16, false, format); 1203 break; 1204 case MTP_PROPERTY_PROTECTION_STATUS: 1205 case MTP_PROPERTY_TRACK: 1206 result = new MtpProperty(property, MTP_TYPE_UINT16); 1207 break; 1208 case MTP_PROPERTY_STORAGE_ID: 1209 case MTP_PROPERTY_PARENT_OBJECT: 1210 case MTP_PROPERTY_DURATION: 1211 case MTP_PROPERTY_AUDIO_WAVE_CODEC: 1212 result = new MtpProperty(property, MTP_TYPE_UINT32); 1213 break; 1214 case MTP_PROPERTY_OBJECT_SIZE: 1215 result = new MtpProperty(property, MTP_TYPE_UINT64); 1216 break; 1217 case MTP_PROPERTY_PERSISTENT_UID: 1218 result = new MtpProperty(property, MTP_TYPE_UINT128); 1219 break; 1220 case MTP_PROPERTY_NAME: 1221 case MTP_PROPERTY_DISPLAY_NAME: 1222 case MTP_PROPERTY_ARTIST: 1223 case MTP_PROPERTY_ALBUM_NAME: 1224 case MTP_PROPERTY_ALBUM_ARTIST: 1225 case MTP_PROPERTY_GENRE: 1226 case MTP_PROPERTY_COMPOSER: 1227 case MTP_PROPERTY_DESCRIPTION: 1228 result = new MtpProperty(property, MTP_TYPE_STR); 1229 break; 1230 case MTP_PROPERTY_DATE_MODIFIED: 1231 case MTP_PROPERTY_DATE_ADDED: 1232 case MTP_PROPERTY_ORIGINAL_RELEASE_DATE: 1233 result = new MtpProperty(property, MTP_TYPE_STR); 1234 result->setFormDateTime(); 1235 break; 1236 case MTP_PROPERTY_OBJECT_FILE_NAME: 1237 // We allow renaming files and folders 1238 result = new MtpProperty(property, MTP_TYPE_STR, true); 1239 break; 1240 case MTP_PROPERTY_BITRATE_TYPE: 1241 result = new MtpProperty(property, MTP_TYPE_UINT16); 1242 result->setFormEnum(bitrateEnum, sizeof(bitrateEnum)/sizeof(bitrateEnum[0])); 1243 break; 1244 case MTP_PROPERTY_AUDIO_BITRATE: 1245 result = new MtpProperty(property, MTP_TYPE_UINT32); 1246 result->setFormRange(1, 1536000, 1); 1247 break; 1248 case MTP_PROPERTY_NUMBER_OF_CHANNELS: 1249 result = new MtpProperty(property, MTP_TYPE_UINT16); 1250 result->setFormEnum(channelEnum, sizeof(channelEnum)/sizeof(channelEnum[0])); 1251 break; 1252 case MTP_PROPERTY_SAMPLE_RATE: 1253 result = new MtpProperty(property, MTP_TYPE_UINT32); 1254 result->setFormRange(8000, 48000, 1); 1255 break; 1256 } 1257 1258 return result; 1259 } 1260 1261 MtpProperty* MtpDatabase::getDevicePropertyDesc(MtpDeviceProperty property) { 1262 JNIEnv* env = AndroidRuntime::getJNIEnv(); 1263 MtpProperty* result = NULL; 1264 bool writable = false; 1265 1266 // get current value 1267 jint ret = env->CallIntMethod(mDatabase, method_getDeviceProperty, 1268 (jint)property, mLongBuffer, mStringBuffer); 1269 if (ret == MTP_RESPONSE_OK) { 1270 switch (property) { 1271 case MTP_DEVICE_PROPERTY_SYNCHRONIZATION_PARTNER: 1272 case MTP_DEVICE_PROPERTY_DEVICE_FRIENDLY_NAME: 1273 writable = true; 1274 // fall through 1275 case MTP_DEVICE_PROPERTY_IMAGE_SIZE: 1276 { 1277 result = new MtpProperty(property, MTP_TYPE_STR, writable); 1278 jchar* str = env->GetCharArrayElements(mStringBuffer, 0); 1279 result->setCurrentValue(str); 1280 // for read-only properties it is safe to assume current value is default value 1281 if (!writable) 1282 result->setDefaultValue(str); 1283 env->ReleaseCharArrayElements(mStringBuffer, str, 0); 1284 break; 1285 } 1286 case MTP_DEVICE_PROPERTY_BATTERY_LEVEL: 1287 { 1288 result = new MtpProperty(property, MTP_TYPE_UINT8); 1289 jlong* arr = env->GetLongArrayElements(mLongBuffer, 0); 1290 result->setFormRange(0, arr[1], 1); 1291 result->mCurrentValue.u.u8 = (uint8_t) arr[0]; 1292 env->ReleaseLongArrayElements(mLongBuffer, arr, 0); 1293 break; 1294 } 1295 case MTP_DEVICE_PROPERTY_PERCEIVED_DEVICE_TYPE: 1296 { 1297 jlong* arr = env->GetLongArrayElements(mLongBuffer, 0); 1298 result = new MtpProperty(property, MTP_TYPE_UINT32); 1299 result->mCurrentValue.u.u32 = (uint32_t) arr[0]; 1300 env->ReleaseLongArrayElements(mLongBuffer, arr, 0); 1301 break; 1302 } 1303 default: 1304 ALOGE("Unrecognized property %x", property); 1305 } 1306 } else { 1307 ALOGE("unable to read device property, response: %04X", ret); 1308 } 1309 1310 checkAndClearExceptionFromCallback(env, __FUNCTION__); 1311 return result; 1312 } 1313 1314 // ---------------------------------------------------------------------------- 1315 1316 static void 1317 android_mtp_MtpDatabase_setup(JNIEnv *env, jobject thiz) 1318 { 1319 MtpDatabase* database = new MtpDatabase(env, thiz); 1320 env->SetLongField(thiz, field_context, (jlong)database); 1321 checkAndClearExceptionFromCallback(env, __FUNCTION__); 1322 } 1323 1324 static void 1325 android_mtp_MtpDatabase_finalize(JNIEnv *env, jobject thiz) 1326 { 1327 MtpDatabase* database = (MtpDatabase *)env->GetLongField(thiz, field_context); 1328 database->cleanup(env); 1329 delete database; 1330 env->SetLongField(thiz, field_context, 0); 1331 checkAndClearExceptionFromCallback(env, __FUNCTION__); 1332 } 1333 1334 static jstring 1335 android_mtp_MtpPropertyGroup_format_date_time(JNIEnv *env, jobject /*thiz*/, jlong seconds) 1336 { 1337 char date[20]; 1338 formatDateTime(seconds, date, sizeof(date)); 1339 return env->NewStringUTF(date); 1340 } 1341 1342 // ---------------------------------------------------------------------------- 1343 1344 static const JNINativeMethod gMtpDatabaseMethods[] = { 1345 {"native_setup", "()V", (void *)android_mtp_MtpDatabase_setup}, 1346 {"native_finalize", "()V", (void *)android_mtp_MtpDatabase_finalize}, 1347 }; 1348 1349 static const JNINativeMethod gMtpPropertyGroupMethods[] = { 1350 {"format_date_time", "(J)Ljava/lang/String;", 1351 (void *)android_mtp_MtpPropertyGroup_format_date_time}, 1352 }; 1353 1354 #define GET_METHOD_ID(name, jclass, signature) \ 1355 method_##name = env->GetMethodID(jclass, #name, signature); \ 1356 if (method_##name == NULL) { \ 1357 ALOGE("Can't find " #name); \ 1358 return -1; \ 1359 } \ 1360 1361 int register_android_mtp_MtpDatabase(JNIEnv *env) 1362 { 1363 jclass clazz; 1364 1365 clazz = env->FindClass("android/mtp/MtpDatabase"); 1366 if (clazz == NULL) { 1367 ALOGE("Can't find android/mtp/MtpDatabase"); 1368 return -1; 1369 } 1370 GET_METHOD_ID(beginSendObject, clazz, "(Ljava/lang/String;III)I"); 1371 GET_METHOD_ID(endSendObject, clazz, "(IZ)V"); 1372 GET_METHOD_ID(rescanFile, clazz, "(Ljava/lang/String;II)V"); 1373 GET_METHOD_ID(getObjectList, clazz, "(III)[I"); 1374 GET_METHOD_ID(getNumObjects, clazz, "(III)I"); 1375 GET_METHOD_ID(getSupportedPlaybackFormats, clazz, "()[I"); 1376 GET_METHOD_ID(getSupportedCaptureFormats, clazz, "()[I"); 1377 GET_METHOD_ID(getSupportedObjectProperties, clazz, "(I)[I"); 1378 GET_METHOD_ID(getSupportedDeviceProperties, clazz, "()[I"); 1379 GET_METHOD_ID(setObjectProperty, clazz, "(IIJLjava/lang/String;)I"); 1380 GET_METHOD_ID(getDeviceProperty, clazz, "(I[J[C)I"); 1381 GET_METHOD_ID(setDeviceProperty, clazz, "(IJLjava/lang/String;)I"); 1382 GET_METHOD_ID(getObjectPropertyList, clazz, "(IIIII)Landroid/mtp/MtpPropertyList;"); 1383 GET_METHOD_ID(getObjectInfo, clazz, "(I[I[C[J)Z"); 1384 GET_METHOD_ID(getObjectFilePath, clazz, "(I[C[J)I"); 1385 GET_METHOD_ID(beginDeleteObject, clazz, "(I)I"); 1386 GET_METHOD_ID(endDeleteObject, clazz, "(IZ)V"); 1387 GET_METHOD_ID(beginMoveObject, clazz, "(III)I"); 1388 GET_METHOD_ID(endMoveObject, clazz, "(IIIIIZ)V"); 1389 GET_METHOD_ID(beginCopyObject, clazz, "(III)I"); 1390 GET_METHOD_ID(endCopyObject, clazz, "(IZ)V"); 1391 GET_METHOD_ID(getObjectReferences, clazz, "(I)[I"); 1392 GET_METHOD_ID(setObjectReferences, clazz, "(I[I)I"); 1393 1394 field_context = env->GetFieldID(clazz, "mNativeContext", "J"); 1395 if (field_context == NULL) { 1396 ALOGE("Can't find MtpDatabase.mNativeContext"); 1397 return -1; 1398 } 1399 1400 clazz = env->FindClass("android/mtp/MtpPropertyList"); 1401 if (clazz == NULL) { 1402 ALOGE("Can't find android/mtp/MtpPropertyList"); 1403 return -1; 1404 } 1405 GET_METHOD_ID(getCode, clazz, "()I"); 1406 GET_METHOD_ID(getCount, clazz, "()I"); 1407 GET_METHOD_ID(getObjectHandles, clazz, "()[I"); 1408 GET_METHOD_ID(getPropertyCodes, clazz, "()[I"); 1409 GET_METHOD_ID(getDataTypes, clazz, "()[I"); 1410 GET_METHOD_ID(getLongValues, clazz, "()[J"); 1411 GET_METHOD_ID(getStringValues, clazz, "()[Ljava/lang/String;"); 1412 1413 if (AndroidRuntime::registerNativeMethods(env, 1414 "android/mtp/MtpDatabase", gMtpDatabaseMethods, NELEM(gMtpDatabaseMethods))) 1415 return -1; 1416 1417 return AndroidRuntime::registerNativeMethods(env, 1418 "android/mtp/MtpPropertyGroup", gMtpPropertyGroupMethods, NELEM(gMtpPropertyGroupMethods)); 1419 } 1420
