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Side by Side Diff: media/mojo/services/mojo_cdm_service.h

Issue 2568463003: media: Rename MediaKeys to ContentDecryptionModule (Closed)
Patch Set: comments addressed Created 4 years ago
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1 // Copyright 2014 The Chromium Authors. All rights reserved. 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 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef MEDIA_MOJO_SERVICES_MOJO_CDM_SERVICE_H_ 5 #ifndef MEDIA_MOJO_SERVICES_MOJO_CDM_SERVICE_H_
6 #define MEDIA_MOJO_SERVICES_MOJO_CDM_SERVICE_H_ 6 #define MEDIA_MOJO_SERVICES_MOJO_CDM_SERVICE_H_
7 7
8 #include <stdint.h> 8 #include <stdint.h>
9 9
10 #include <memory> 10 #include <memory>
11 11
12 #include "base/callback.h" 12 #include "base/callback.h"
13 #include "base/compiler_specific.h" 13 #include "base/compiler_specific.h"
14 #include "base/macros.h" 14 #include "base/macros.h"
15 #include "base/memory/ref_counted.h" 15 #include "base/memory/ref_counted.h"
16 #include "base/memory/weak_ptr.h" 16 #include "base/memory/weak_ptr.h"
17 #include "media/base/content_decryption_module.h"
17 #include "media/base/eme_constants.h" 18 #include "media/base/eme_constants.h"
18 #include "media/base/media_keys.h"
19 #include "media/mojo/interfaces/content_decryption_module.mojom.h" 19 #include "media/mojo/interfaces/content_decryption_module.mojom.h"
20 #include "media/mojo/services/media_mojo_export.h" 20 #include "media/mojo/services/media_mojo_export.h"
21 #include "media/mojo/services/mojo_cdm_promise.h" 21 #include "media/mojo/services/mojo_cdm_promise.h"
22 #include "media/mojo/services/mojo_cdm_service_context.h" 22 #include "media/mojo/services/mojo_cdm_service_context.h"
23 #include "media/mojo/services/mojo_decryptor_service.h" 23 #include "media/mojo/services/mojo_decryptor_service.h"
24 24
25 namespace media { 25 namespace media {
26 26
27 class CdmFactory; 27 class CdmFactory;
28 28
29 // A mojom::ContentDecryptionModule implementation backed by a 29 // A mojom::ContentDecryptionModule implementation backed by a
30 // media::MediaKeys. 30 // media::ContentDecryptionModule.
31 class MEDIA_MOJO_EXPORT MojoCdmService 31 class MEDIA_MOJO_EXPORT MojoCdmService
32 : NON_EXPORTED_BASE(public mojom::ContentDecryptionModule) { 32 : NON_EXPORTED_BASE(public mojom::ContentDecryptionModule) {
33 public: 33 public:
34 using SessionType = MediaKeys::SessionType; 34 using SessionType = ::media::ContentDecryptionModule::SessionType;
35 35
36 // Get the CDM associated with |cdm_id|, which is unique per process. 36 // Get the CDM associated with |cdm_id|, which is unique per process.
37 // Can be called on any thread. The returned CDM is not guaranteed to be 37 // Can be called on any thread. The returned CDM is not guaranteed to be
38 // thread safe. 38 // thread safe.
39 // Note: This provides a generic hack to get the CDM in the process where 39 // Note: This provides a generic hack to get the CDM in the process where
40 // MediaService is running, regardless of which render process or 40 // MediaService is running, regardless of which render process or
41 // render frame the caller is associated with. In the future, we should move 41 // render frame the caller is associated with. In the future, we should move
42 // all out-of-process media players into the MediaService so that we can use 42 // all out-of-process media players into the MediaService so that we can use
43 // MojoCdmServiceContext (per render frame) to get the CDM. 43 // MojoCdmServiceContext (per render frame) to get the CDM.
44 static scoped_refptr<MediaKeys> LegacyGetCdm(int cdm_id); 44 static scoped_refptr<::media::ContentDecryptionModule> LegacyGetCdm(
45 int cdm_id);
45 46
46 // Constructs a MojoCdmService and strongly binds it to the |request|. 47 // Constructs a MojoCdmService and strongly binds it to the |request|.
47 MojoCdmService(base::WeakPtr<MojoCdmServiceContext> context, 48 MojoCdmService(base::WeakPtr<MojoCdmServiceContext> context,
48 CdmFactory* cdm_factory); 49 CdmFactory* cdm_factory);
49 50
50 ~MojoCdmService() final; 51 ~MojoCdmService() final;
51 52
52 // mojom::ContentDecryptionModule implementation. 53 // mojom::ContentDecryptionModule implementation.
53 void SetClient(mojom::ContentDecryptionModuleClientPtr client) final; 54 void SetClient(mojom::ContentDecryptionModuleClientPtr client) final;
54 void Initialize(const std::string& key_system, 55 void Initialize(const std::string& key_system,
(...skipping 12 matching lines...) Expand all
67 const LoadSessionCallback& callback) final; 68 const LoadSessionCallback& callback) final;
68 void UpdateSession(const std::string& session_id, 69 void UpdateSession(const std::string& session_id,
69 const std::vector<uint8_t>& response, 70 const std::vector<uint8_t>& response,
70 const UpdateSessionCallback& callback) final; 71 const UpdateSessionCallback& callback) final;
71 void CloseSession(const std::string& session_id, 72 void CloseSession(const std::string& session_id,
72 const CloseSessionCallback& callback) final; 73 const CloseSessionCallback& callback) final;
73 void RemoveSession(const std::string& session_id, 74 void RemoveSession(const std::string& session_id,
74 const RemoveSessionCallback& callback) final; 75 const RemoveSessionCallback& callback) final;
75 76
76 // Get CDM to be used by the media pipeline. 77 // Get CDM to be used by the media pipeline.
77 scoped_refptr<MediaKeys> GetCdm(); 78 scoped_refptr<::media::ContentDecryptionModule> GetCdm();
78 79
79 private: 80 private:
80 // Callback for CdmFactory::Create(). 81 // Callback for CdmFactory::Create().
81 void OnCdmCreated(const InitializeCallback& callback, 82 void OnCdmCreated(const InitializeCallback& callback,
82 const scoped_refptr<MediaKeys>& cdm, 83 const scoped_refptr<::media::ContentDecryptionModule>& cdm,
83 const std::string& error_message); 84 const std::string& error_message);
84 85
85 // Callbacks for firing session events. 86 // Callbacks for firing session events.
86 void OnSessionMessage(const std::string& session_id, 87 void OnSessionMessage(
87 MediaKeys::MessageType message_type, 88 const std::string& session_id,
88 const std::vector<uint8_t>& message); 89 ::media::ContentDecryptionModule::MessageType message_type,
90 const std::vector<uint8_t>& message);
89 void OnSessionKeysChange(const std::string& session_id, 91 void OnSessionKeysChange(const std::string& session_id,
90 bool has_additional_usable_key, 92 bool has_additional_usable_key,
91 CdmKeysInfo keys_info); 93 CdmKeysInfo keys_info);
92 void OnSessionExpirationUpdate(const std::string& session_id, 94 void OnSessionExpirationUpdate(const std::string& session_id,
93 base::Time new_expiry_time); 95 base::Time new_expiry_time);
94 void OnSessionClosed(const std::string& session_id); 96 void OnSessionClosed(const std::string& session_id);
95 97
96 // Callback for when |decryptor_| loses connectivity. 98 // Callback for when |decryptor_| loses connectivity.
97 void OnDecryptorConnectionError(); 99 void OnDecryptorConnectionError();
98 100
99 // CDM ID to be assigned to the next successfully initialized CDM. This ID is 101 // CDM ID to be assigned to the next successfully initialized CDM. This ID is
100 // unique per process. It will be used to locate the CDM by the media players 102 // unique per process. It will be used to locate the CDM by the media players
101 // living in the same process. 103 // living in the same process.
102 static int next_cdm_id_; 104 static int next_cdm_id_;
103 105
104 base::WeakPtr<MojoCdmServiceContext> context_; 106 base::WeakPtr<MojoCdmServiceContext> context_;
105 107
106 CdmFactory* cdm_factory_; 108 CdmFactory* cdm_factory_;
107 scoped_refptr<MediaKeys> cdm_; 109 scoped_refptr<::media::ContentDecryptionModule> cdm_;
108 110
109 std::unique_ptr<MojoDecryptorService> decryptor_; 111 std::unique_ptr<MojoDecryptorService> decryptor_;
110 112
111 // Set to a valid CDM ID if the |cdm_| is successfully created. 113 // Set to a valid CDM ID if the |cdm_| is successfully created.
112 int cdm_id_; 114 int cdm_id_;
113 115
114 mojom::ContentDecryptionModuleClientPtr client_; 116 mojom::ContentDecryptionModuleClientPtr client_;
115 117
116 base::WeakPtr<MojoCdmService> weak_this_; 118 base::WeakPtr<MojoCdmService> weak_this_;
117 base::WeakPtrFactory<MojoCdmService> weak_factory_; 119 base::WeakPtrFactory<MojoCdmService> weak_factory_;
118 120
119 DISALLOW_COPY_AND_ASSIGN(MojoCdmService); 121 DISALLOW_COPY_AND_ASSIGN(MojoCdmService);
120 }; 122 };
121 123
122 } // namespace media 124 } // namespace media
123 125
124 #endif // MEDIA_MOJO_SERVICES_MOJO_CDM_SERVICE_H_ 126 #endif // MEDIA_MOJO_SERVICES_MOJO_CDM_SERVICE_H_
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