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1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #include "media/base/browser_cdm_factory.h"
6 
7 #include "base/command_line.h"
8 #include "base/logging.h"
9 #include "base/memory/scoped_ptr.h"
10 #include "media/base/android/media_drm_bridge.h"
11 #include "media/base/media_switches.h"
12 
13 namespace media {
14 
CreateBrowserCdm(const std::string & key_system,const BrowserCdm::SessionCreatedCB & session_created_cb,const BrowserCdm::SessionMessageCB & session_message_cb,const BrowserCdm::SessionReadyCB & session_ready_cb,const BrowserCdm::SessionClosedCB & session_closed_cb,const BrowserCdm::SessionErrorCB & session_error_cb)15 scoped_ptr<BrowserCdm> CreateBrowserCdm(
16     const std::string& key_system,
17     const BrowserCdm::SessionCreatedCB& session_created_cb,
18     const BrowserCdm::SessionMessageCB& session_message_cb,
19     const BrowserCdm::SessionReadyCB& session_ready_cb,
20     const BrowserCdm::SessionClosedCB& session_closed_cb,
21     const BrowserCdm::SessionErrorCB& session_error_cb) {
22   if (!MediaDrmBridge::IsKeySystemSupported(key_system)) {
23     NOTREACHED() << "Unsupported key system: " << key_system;
24     return scoped_ptr<BrowserCdm>();
25   }
26 
27   scoped_ptr<MediaDrmBridge> cdm(MediaDrmBridge::Create(key_system,
28                                                         session_created_cb,
29                                                         session_message_cb,
30                                                         session_ready_cb,
31                                                         session_closed_cb,
32                                                         session_error_cb));
33   if (!cdm) {
34     NOTREACHED() << "MediaDrmBridge cannot be created for " << key_system;
35     return scoped_ptr<BrowserCdm>();
36   }
37 
38   // TODO(xhwang/ddorwin): Pass the security level from key system.
39   MediaDrmBridge::SecurityLevel security_level =
40       MediaDrmBridge::SECURITY_LEVEL_3;
41   if (CommandLine::ForCurrentProcess()->HasSwitch(
42           switches::kMediaDrmEnableNonCompositing)) {
43     security_level = MediaDrmBridge::SECURITY_LEVEL_1;
44   }
45   if (!cdm->SetSecurityLevel(security_level)) {
46     DVLOG(1) << "failed to set security level " << security_level;
47     return scoped_ptr<BrowserCdm>();
48   }
49 
50   return cdm.PassAs<BrowserCdm>();
51 }
52 
53 }  // namespace media
54