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