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 <media/NdkMediaCrypto.h>
22 #include <media/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
37 using namespace android;
38
makeCrypto()39 static 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
55 struct AMediaCrypto {
56 sp<ICrypto> mCrypto;
57 };
58
59
60 extern "C" {
61
62
63 EXPORT
AMediaCrypto_isCryptoSchemeSupported(const AMediaUUID uuid)64 bool 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
72 EXPORT
AMediaCrypto_requiresSecureDecoderComponent(const char * mime)73 bool 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
81 EXPORT
AMediaCrypto_new(const AMediaUUID uuid,const void * data,size_t datasize)82 AMediaCrypto* 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
99 EXPORT
AMediaCrypto_delete(AMediaCrypto * crypto)100 void AMediaCrypto_delete(AMediaCrypto* crypto) {
101 delete crypto;
102 }
103
104
105
106 } // extern "C"
107
108