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      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 
     36 using namespace android;
     37 
     38 static media_status_t translate_error(status_t err) {
     39     if (err == OK) {
     40         return AMEDIA_OK;
     41     }
     42     ALOGE("sf error code: %d", err);
     43     return AMEDIA_ERROR_UNKNOWN;
     44 }
     45 
     46 
     47 static 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 
     69 struct AMediaCrypto {
     70     sp<ICrypto> mCrypto;
     71 };
     72 
     73 
     74 extern "C" {
     75 
     76 
     77 EXPORT
     78 bool 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 
     86 EXPORT
     87 bool 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 
     95 EXPORT
     96 AMediaCrypto* 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 
    113 EXPORT
    114 void AMediaCrypto_delete(AMediaCrypto* crypto) {
    115     delete crypto;
    116 }
    117 
    118 
    119 
    120 } // extern "C"
    121 
    122