1/* 2 * Copyright (C) 2014 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_NDEBUG 0 18#define LOG_TAG "NdkMediaCrypto" 19 20 21#include "NdkMediaCrypto.h" 22#include "NdkMediaCodec.h" 23#include "NdkMediaFormatPriv.h" 24 25 26#include <cutils/properties.h> 27#include <utils/Log.h> 28#include <utils/StrongPointer.h> 29#include <binder/IServiceManager.h> 30#include <media/ICrypto.h> 31#include <media/IMediaDrmService.h> 32#include <android_runtime/AndroidRuntime.h> 33#include <android_util_Binder.h> 34 35#include <jni.h> 36 37using namespace android; 38 39static sp<ICrypto> makeCrypto() { 40 sp<IServiceManager> sm = defaultServiceManager(); 41 sp<IBinder> binder = sm->getService(String16("media.drm")); 42 43 sp<IMediaDrmService> service = interface_cast<IMediaDrmService>(binder); 44 if (service == NULL) { 45 return NULL; 46 } 47 48 sp<ICrypto> crypto = service->makeCrypto(); 49 if (crypto == NULL || (crypto->initCheck() != OK && crypto->initCheck() != NO_INIT)) { 50 return NULL; 51 } 52 return crypto; 53} 54 55struct AMediaCrypto { 56 sp<ICrypto> mCrypto; 57}; 58 59 60extern "C" { 61 62 63EXPORT 64bool AMediaCrypto_isCryptoSchemeSupported(const AMediaUUID uuid) { 65 sp<ICrypto> crypto = makeCrypto(); 66 if (crypto == NULL) { 67 return false; 68 } 69 return crypto->isCryptoSchemeSupported(uuid); 70} 71 72EXPORT 73bool AMediaCrypto_requiresSecureDecoderComponent(const char *mime) { 74 sp<ICrypto> crypto = makeCrypto(); 75 if (crypto == NULL) { 76 return false; 77 } 78 return crypto->requiresSecureDecoderComponent(mime); 79} 80 81EXPORT 82AMediaCrypto* AMediaCrypto_new(const AMediaUUID uuid, const void *data, size_t datasize) { 83 84 sp<ICrypto> tmp = makeCrypto(); 85 if (tmp == NULL) { 86 return NULL; 87 } 88 89 if (tmp->createPlugin(uuid, data, datasize) != 0) { 90 return NULL; 91 } 92 93 AMediaCrypto *crypto = new AMediaCrypto(); 94 crypto->mCrypto = tmp; 95 96 return crypto; 97} 98 99EXPORT 100void AMediaCrypto_delete(AMediaCrypto* crypto) { 101 delete crypto; 102} 103 104 105 106} // extern "C" 107 108