|  | // Copyright 2018 The Cobalt Authors. All Rights Reserved. | 
|  | // | 
|  | // Licensed under the Apache License, Version 2.0 (the "License"); | 
|  | // you may not use this file except in compliance with the License. | 
|  | // You may obtain a copy of the License at | 
|  | // | 
|  | //     http://www.apache.org/licenses/LICENSE-2.0 | 
|  | // | 
|  | // Unless required by applicable law or agreed to in writing, software | 
|  | // distributed under the License is distributed on an "AS IS" BASIS, | 
|  | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | 
|  | // See the License for the specific language governing permissions and | 
|  | // limitations under the License. | 
|  |  | 
|  | #include "starboard/drm.h" | 
|  |  | 
|  | #include "starboard/common/log.h" | 
|  | #include "starboard/common/string.h" | 
|  | #include "starboard/shared/widevine/drm_system_widevine.h" | 
|  |  | 
|  | SbDrmSystem SbDrmCreateSystem( | 
|  | const char* key_system, | 
|  | void* context, | 
|  | SbDrmSessionUpdateRequestFunc update_request_callback, | 
|  | SbDrmSessionUpdatedFunc session_updated_callback, | 
|  | SbDrmSessionKeyStatusesChangedFunc key_statuses_changed_callback, | 
|  | SbDrmServerCertificateUpdatedFunc server_certificate_updated_callback, | 
|  | SbDrmSessionClosedFunc session_closed_callback) { | 
|  | using starboard::shared::widevine::DrmSystemWidevine; | 
|  | if (!update_request_callback || !session_updated_callback) { | 
|  | return kSbDrmSystemInvalid; | 
|  | } | 
|  | if (!key_statuses_changed_callback) { | 
|  | return kSbDrmSystemInvalid; | 
|  | } | 
|  | if (!server_certificate_updated_callback || !session_closed_callback) { | 
|  | return kSbDrmSystemInvalid; | 
|  | } | 
|  | if (!DrmSystemWidevine::IsKeySystemSupported(key_system)) { | 
|  | SB_DLOG(WARNING) << "Invalid key system " << key_system; | 
|  | return kSbDrmSystemInvalid; | 
|  | } | 
|  | return new DrmSystemWidevine( | 
|  | context, update_request_callback, session_updated_callback, | 
|  | key_statuses_changed_callback, server_certificate_updated_callback, | 
|  | session_closed_callback, "Linux", "Linux"); | 
|  | } |