NdkMediaCrypto.cpp revision 3425fd5a55dd31e261d2f2a9590c762d6d0a6b79 
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 <utils/Log.h>
27#include <utils/StrongPointer.h>
28#include <binder/IServiceManager.h>
29#include <media/ICrypto.h>
30#include <media/IMediaPlayerService.h>
31#include <android_runtime/AndroidRuntime.h>
32#include <android_util_Binder.h>
33
34#include <jni.h>
35
36using namespace android;
37
38static int translate_error(status_t err) {
39    if (err == OK) {
40        return OK;
41    }
42    ALOGE("sf error code: %d", err);
43    return -1000;
44}
45
46
47static sp<ICrypto> makeCrypto() {
48    sp<IServiceManager> sm = defaultServiceManager();
49
50    sp<IBinder> binder =
51        sm->getService(String16("media.player"));
52
53    sp<IMediaPlayerService> service =
54        interface_cast<IMediaPlayerService>(binder);
55
56    if (service == NULL) {
57        return NULL;
58    }
59
60    sp<ICrypto> crypto = service->makeCrypto();
61
62    if (crypto == NULL || (crypto->initCheck() != OK && crypto->initCheck() != NO_INIT)) {
63        return NULL;
64    }
65
66    return crypto;
67}
68
69struct AMediaCrypto {
70    sp<ICrypto> mCrypto;
71};
72
73
74extern "C" {
75
76
77EXPORT
78bool AMediaCrypto_isCryptoSchemeSupported(const AMediaUUID uuid) {
79    sp<ICrypto> crypto = makeCrypto();
80    if (crypto == NULL) {
81        return false;
82    }
83    return crypto->isCryptoSchemeSupported(uuid);
84}
85
86EXPORT
87bool AMediaCrypto_requiresSecureDecoderComponent(const char *mime) {
88    sp<ICrypto> crypto = makeCrypto();
89    if (crypto == NULL) {
90        return false;
91    }
92    return crypto->requiresSecureDecoderComponent(mime);
93}
94
95EXPORT
96AMediaCrypto* AMediaCrypto_new(const AMediaUUID uuid, const void *data, size_t datasize) {
97
98    sp<ICrypto> tmp = makeCrypto();
99    if (tmp == NULL) {
100        return NULL;
101    }
102
103    if (tmp->createPlugin(uuid, data, datasize) != 0) {
104        return NULL;
105    }
106
107    AMediaCrypto *crypto = new AMediaCrypto();
108    crypto->mCrypto = tmp;
109
110    return crypto;
111}
112
113EXPORT
114void AMediaCrypto_delete(AMediaCrypto* crypto) {
115    delete crypto;
116}
117
118
119
120} // extern "C"
121
122