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      1 /*
      2  * Copyright (C) 2018 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 "hidl_ClearKeyDrmFactory"
     19 #include <utils/Log.h>
     20 
     21 #include <utils/Errors.h>
     22 
     23 #include "DrmFactory.h"
     24 
     25 #include "DrmPlugin.h"
     26 #include "ClearKeyUUID.h"
     27 #include "MimeType.h"
     28 #include "SessionLibrary.h"
     29 
     30 namespace android {
     31 namespace hardware {
     32 namespace drm {
     33 namespace V1_1 {
     34 namespace clearkey {
     35 
     36 using ::android::hardware::drm::V1_0::Status;
     37 using ::android::hardware::Void;
     38 
     39 Return<bool> DrmFactory::isCryptoSchemeSupported(
     40         const hidl_array<uint8_t, 16>& uuid) {
     41     return clearkeydrm::isClearKeyUUID(uuid.data());
     42 }
     43 
     44 Return<bool> DrmFactory::isContentTypeSupported(const hidl_string &mimeType) {
     45     // This should match the mimeTypes handed by InitDataParser.
     46     return mimeType == kIsoBmffVideoMimeType ||
     47             mimeType == kIsoBmffAudioMimeType ||
     48             mimeType == kCencInitDataFormat ||
     49             mimeType == kWebmVideoMimeType ||
     50             mimeType == kWebmAudioMimeType ||
     51             mimeType == kWebmInitDataFormat;
     52 }
     53 
     54 Return<void> DrmFactory::createPlugin(
     55     const hidl_array<uint8_t, 16>& uuid,
     56     const hidl_string& appPackageName,
     57     createPlugin_cb _hidl_cb) {
     58     UNUSED(appPackageName);
     59 
     60     DrmPlugin *plugin = NULL;
     61     if (!isCryptoSchemeSupported(uuid.data())) {
     62         ALOGE("Clear key Drm HAL: failed to create drm plugin, " \
     63                 "invalid crypto scheme");
     64         _hidl_cb(Status::BAD_VALUE, plugin);
     65         return Void();
     66     }
     67 
     68     plugin = new DrmPlugin(SessionLibrary::get());
     69     _hidl_cb(Status::OK, plugin);
     70     return Void();
     71 }
     72 
     73 } // namespace clearkey
     74 } // namespace V1_1
     75 } // namespace drm
     76 } // namespace hardware
     77 } // namespace android
     78