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| 1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 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_CRYPTO_AES_DECRYPTOR_H_ | 5 #ifndef MEDIA_CRYPTO_AES_DECRYPTOR_H_ |
| 6 #define MEDIA_CRYPTO_AES_DECRYPTOR_H_ | 6 #define MEDIA_CRYPTO_AES_DECRYPTOR_H_ |
| 7 | 7 |
| 8 #include <set> | 8 #include <set> |
| 9 #include <string> | 9 #include <string> |
| 10 #include <vector> |
| 10 | 11 |
| 11 #include "base/basictypes.h" | 12 #include "base/basictypes.h" |
| 12 #include "base/containers/scoped_ptr_hash_map.h" | 13 #include "base/containers/scoped_ptr_hash_map.h" |
| 13 #include "base/memory/ref_counted.h" | 14 #include "base/memory/ref_counted.h" |
| 14 #include "base/memory/scoped_ptr.h" | 15 #include "base/memory/scoped_ptr.h" |
| 15 #include "base/synchronization/lock.h" | 16 #include "base/synchronization/lock.h" |
| 16 #include "media/base/cdm_context.h" | 17 #include "media/base/cdm_context.h" |
| 17 #include "media/base/decryptor.h" | 18 #include "media/base/decryptor.h" |
| 18 #include "media/base/media_export.h" | 19 #include "media/base/media_export.h" |
| 19 #include "media/base/media_keys.h" | 20 #include "media/base/media_keys.h" |
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| 32 public CdmContext, | 33 public CdmContext, |
| 33 public Decryptor { | 34 public Decryptor { |
| 34 public: | 35 public: |
| 35 AesDecryptor(const GURL& security_origin, | 36 AesDecryptor(const GURL& security_origin, |
| 36 const SessionMessageCB& session_message_cb, | 37 const SessionMessageCB& session_message_cb, |
| 37 const SessionClosedCB& session_closed_cb, | 38 const SessionClosedCB& session_closed_cb, |
| 38 const SessionKeysChangeCB& session_keys_change_cb); | 39 const SessionKeysChangeCB& session_keys_change_cb); |
| 39 ~AesDecryptor() override; | 40 ~AesDecryptor() override; |
| 40 | 41 |
| 41 // MediaKeys implementation. | 42 // MediaKeys implementation. |
| 42 void SetServerCertificate(const uint8* certificate_data, | 43 void SetServerCertificate(const std::vector<uint8_t>& certificate, |
| 43 int certificate_data_length, | |
| 44 scoped_ptr<SimpleCdmPromise> promise) override; | 44 scoped_ptr<SimpleCdmPromise> promise) override; |
| 45 void CreateSessionAndGenerateRequest( | 45 void CreateSessionAndGenerateRequest( |
| 46 SessionType session_type, | 46 SessionType session_type, |
| 47 EmeInitDataType init_data_type, | 47 EmeInitDataType init_data_type, |
| 48 const uint8* init_data, | 48 const std::vector<uint8_t>& init_data, |
| 49 int init_data_length, | |
| 50 scoped_ptr<NewSessionCdmPromise> promise) override; | 49 scoped_ptr<NewSessionCdmPromise> promise) override; |
| 51 void LoadSession(SessionType session_type, | 50 void LoadSession(SessionType session_type, |
| 52 const std::string& session_id, | 51 const std::string& session_id, |
| 53 scoped_ptr<NewSessionCdmPromise> promise) override; | 52 scoped_ptr<NewSessionCdmPromise> promise) override; |
| 54 void UpdateSession(const std::string& session_id, | 53 void UpdateSession(const std::string& session_id, |
| 55 const uint8* response, | 54 const std::vector<uint8_t>& response, |
| 56 int response_length, | |
| 57 scoped_ptr<SimpleCdmPromise> promise) override; | 55 scoped_ptr<SimpleCdmPromise> promise) override; |
| 58 void CloseSession(const std::string& session_id, | 56 void CloseSession(const std::string& session_id, |
| 59 scoped_ptr<SimpleCdmPromise> promise) override; | 57 scoped_ptr<SimpleCdmPromise> promise) override; |
| 60 void RemoveSession(const std::string& session_id, | 58 void RemoveSession(const std::string& session_id, |
| 61 scoped_ptr<SimpleCdmPromise> promise) override; | 59 scoped_ptr<SimpleCdmPromise> promise) override; |
| 62 CdmContext* GetCdmContext() override; | 60 CdmContext* GetCdmContext() override; |
| 63 | 61 |
| 64 // CdmContext implementation. | 62 // CdmContext implementation. |
| 65 Decryptor* GetDecryptor() override; | 63 Decryptor* GetDecryptor() override; |
| 66 int GetCdmId() const override; | 64 int GetCdmId() const override; |
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| 142 // protect |key_map_|, the only member variable that is shared between | 140 // protect |key_map_|, the only member variable that is shared between |
| 143 // Decrypt() and other methods. | 141 // Decrypt() and other methods. |
| 144 KeyIdToSessionKeysMap key_map_; // Protected by |key_map_lock_|. | 142 KeyIdToSessionKeysMap key_map_; // Protected by |key_map_lock_|. |
| 145 mutable base::Lock key_map_lock_; // Protects the |key_map_|. | 143 mutable base::Lock key_map_lock_; // Protects the |key_map_|. |
| 146 | 144 |
| 147 // Keeps track of current valid sessions. | 145 // Keeps track of current valid sessions. |
| 148 std::set<std::string> valid_sessions_; | 146 std::set<std::string> valid_sessions_; |
| 149 | 147 |
| 150 // Make session ID unique per renderer by making it static. Session | 148 // Make session ID unique per renderer by making it static. Session |
| 151 // IDs seen by the app will be "1", "2", etc. | 149 // IDs seen by the app will be "1", "2", etc. |
| 152 static uint32 next_session_id_; | 150 static uint32_t next_session_id_; |
| 153 | 151 |
| 154 NewKeyCB new_audio_key_cb_; | 152 NewKeyCB new_audio_key_cb_; |
| 155 NewKeyCB new_video_key_cb_; | 153 NewKeyCB new_video_key_cb_; |
| 156 | 154 |
| 157 // Protect |new_audio_key_cb_| and |new_video_key_cb_| as they are set on the | 155 // Protect |new_audio_key_cb_| and |new_video_key_cb_| as they are set on the |
| 158 // main thread but called on the media thread. | 156 // main thread but called on the media thread. |
| 159 mutable base::Lock new_key_cb_lock_; | 157 mutable base::Lock new_key_cb_lock_; |
| 160 | 158 |
| 161 DISALLOW_COPY_AND_ASSIGN(AesDecryptor); | 159 DISALLOW_COPY_AND_ASSIGN(AesDecryptor); |
| 162 }; | 160 }; |
| 163 | 161 |
| 164 } // namespace media | 162 } // namespace media |
| 165 | 163 |
| 166 #endif // MEDIA_CRYPTO_AES_DECRYPTOR_H_ | 164 #endif // MEDIA_CRYPTO_AES_DECRYPTOR_H_ |
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