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1 // Copyright 2017 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/cdm/cdm_adapter_factory.h" | |
6 | |
7 #include "base/base_paths.h" | |
8 #include "base/bind.h" | |
9 #include "base/feature_list.h" | |
10 #include "base/memory/ptr_util.h" | |
11 #include "base/path_service.h" | |
12 #include "base/threading/thread_task_runner_handle.h" | |
13 #include "media/base/cdm_factory.h" | |
14 #include "media/base/key_systems.h" | |
15 #include "media/cdm/cdm_adapter.h" | |
16 #include "media/cdm/cdm_paths.h" | |
17 #include "third_party/widevine/cdm/widevine_cdm_common.h" | |
18 | |
19 namespace media { | |
20 | |
21 CdmAdapterFactory::CdmAdapterFactory( | |
22 CdmAllocator::CreationCB allocator_creation_cb) | |
23 : allocator_creation_cb_(std::move(allocator_creation_cb)) { | |
24 DCHECK(allocator_creation_cb_); | |
25 } | |
26 | |
27 CdmAdapterFactory::~CdmAdapterFactory() {} | |
28 | |
29 void CdmAdapterFactory::Create( | |
30 const std::string& key_system, | |
31 const GURL& security_origin, | |
32 const CdmConfig& cdm_config, | |
33 const SessionMessageCB& session_message_cb, | |
34 const SessionClosedCB& session_closed_cb, | |
35 const SessionKeysChangeCB& session_keys_change_cb, | |
36 const SessionExpirationUpdateCB& session_expiration_update_cb, | |
37 const CdmCreatedCB& cdm_created_cb) { | |
38 DVLOG(1) << __FUNCTION__ << ": key_system=" << key_system; | |
39 | |
40 if (!security_origin.is_valid()) { | |
41 LOG(ERROR) << "Invalid Origin: " << security_origin; | |
42 base::ThreadTaskRunnerHandle::Get()->PostTask( | |
43 FROM_HERE, base::Bind(cdm_created_cb, nullptr, "Invalid origin.")); | |
44 return; | |
45 } | |
46 | |
47 base::FilePath cdm_path; | |
48 | |
49 #if defined(WIDEVINE_CDM_AVAILABLE) | |
50 // TODO(xhwang): Remove key-system-specific logic here. We should have the | |
51 // CDM path forwarded from the browser already. See http://crbug.com/510604 | |
52 if (key_system == kWidevineKeySystem) { | |
53 // Build the library path for Widevine CDM. | |
54 // TODO(xhwang): We should have the CDM path forwarded from the browser | |
55 // already. See http://crbug.com/510604 | |
56 base::FilePath cdm_base_path; | |
57 base::PathService::Get(base::DIR_MODULE, &cdm_base_path); | |
58 cdm_base_path = cdm_base_path.Append( | |
59 GetPlatformSpecificDirectory(kWidevineCdmBaseDirectory)); | |
jrummell
2017/05/23 22:23:28
Can you use DIR_COMPONENT_WIDEVINE_CDM to get the
xhwang
2017/05/23 22:31:12
DIR_COMPONENT_WIDEVINE_CDM points to the component
| |
60 cdm_path = cdm_base_path.AppendASCII( | |
61 base::GetNativeLibraryName(kWidevineCdmLibraryName)); | |
62 } | |
63 #endif // defined(WIDEVINE_CDM_AVAILABLE) | |
64 | |
65 if (cdm_path.empty()) { | |
66 base::ThreadTaskRunnerHandle::Get()->PostTask( | |
67 FROM_HERE, | |
68 base::Bind(cdm_created_cb, nullptr, "Unsupported key system.")); | |
69 return; | |
70 } | |
71 | |
72 std::unique_ptr<CdmAllocator> cdm_allocator = allocator_creation_cb_.Run(); | |
73 if (!cdm_allocator) { | |
74 base::ThreadTaskRunnerHandle::Get()->PostTask( | |
75 FROM_HERE, | |
76 base::Bind(cdm_created_cb, nullptr, "CDM allocator creation failed.")); | |
77 return; | |
78 } | |
79 | |
80 // TODO(xhwang): Hook up auxiliary services, e.g. File IO, output protection, | |
81 // and platform verification. | |
82 CdmAdapter::Create(key_system, cdm_path, cdm_config, std::move(cdm_allocator), | |
83 CreateCdmFileIOCB(), session_message_cb, session_closed_cb, | |
84 session_keys_change_cb, session_expiration_update_cb, | |
85 cdm_created_cb); | |
86 } | |
87 | |
88 } // namespace media | |
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