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