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| 1 // Copyright (c) 2013 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 #ifndef MEDIA_BASE_ANDROID_MEDIA_DRM_PROXY_H_ |
| 6 #define MEDIA_BASE_ANDROID_MEDIA_DRM_PROXY_H_ |
| 7 |
| 8 #include <string> |
| 9 |
| 10 #include "base/memory/scoped_ptr.h" |
| 11 #include "base/memory/weak_ptr.h" |
| 12 #include "media/base/android/media_drm_bridge.h" |
| 13 #include "media/base/browser_cdm.h" |
| 14 |
| 15 namespace media { |
| 16 |
| 17 // This class delegates MediaDrmBridge calls onto the Media thread |
| 18 class MEDIA_EXPORT MediaDrmProxy : public BrowserCdm { |
| 19 public: |
| 20 ~MediaDrmProxy() override; |
| 21 void DeleteOnCorrectThread() override; |
| 22 |
| 23 // Returns a MediaDrmBridge instance if |key_system| is supported, or a NULL |
| 24 // pointer otherwise. |
| 25 // TODO(xhwang): Is it okay not to update session expiration info? |
| 26 static scoped_ptr<MediaDrmProxy, BrowserCdmDeleter> Create( |
| 27 const std::string& key_system, |
| 28 MediaDrmBridge::SecurityLevel widevine_security_level, |
| 29 const SessionMessageCB& session_message_cb, |
| 30 const SessionClosedCB& session_closed_cb, |
| 31 const LegacySessionErrorCB& legacy_session_error_cb, |
| 32 const SessionKeysChangeCB& session_keys_change_cb, |
| 33 const SessionExpirationUpdateCB& session_expiration_update_cb); |
| 34 |
| 35 // MediaKeys (via BrowserCdm) implementation. |
| 36 |
| 37 void SetServerCertificate( |
| 38 const std::vector<uint8_t>& certificate, |
| 39 scoped_ptr<media::SimpleCdmPromise> promise) override; |
| 40 void CreateSessionAndGenerateRequest( |
| 41 SessionType session_type, |
| 42 media::EmeInitDataType init_data_type, |
| 43 const std::vector<uint8_t>& init_data, |
| 44 scoped_ptr<media::NewSessionCdmPromise> promise) override; |
| 45 void LoadSession(SessionType session_type, |
| 46 const std::string& session_id, |
| 47 scoped_ptr<media::NewSessionCdmPromise> promise) override; |
| 48 void UpdateSession(const std::string& session_id, |
| 49 const std::vector<uint8_t>& response, |
| 50 scoped_ptr<media::SimpleCdmPromise> promise) override; |
| 51 void CloseSession(const std::string& session_id, |
| 52 scoped_ptr<media::SimpleCdmPromise> promise) override; |
| 53 void RemoveSession(const std::string& session_id, |
| 54 scoped_ptr<media::SimpleCdmPromise> promise) override; |
| 55 CdmContext* GetCdmContext() override; |
| 56 |
| 57 // PlayerTracker (via BrowserCdm) implementation. |
| 58 |
| 59 int RegisterPlayer(const base::Closure& new_key_cb, |
| 60 const base::Closure& cdm_unset_cb) override; |
| 61 void UnregisterPlayer(int registration_id) override; |
| 62 |
| 63 // Accessor for MediaDrmBridge |
| 64 MediaDrmBridge* GetDrmBridge(); |
| 65 |
| 66 private: |
| 67 MediaDrmProxy(const std::string& key_system, |
| 68 MediaDrmBridge::SecurityLevel widevine_security_level, |
| 69 const SessionMessageCB& session_message_cb, |
| 70 const SessionClosedCB& session_closed_cb, |
| 71 const LegacySessionErrorCB& legacy_session_error_cb, |
| 72 const SessionKeysChangeCB& session_keys_change_cb, |
| 73 const SessionExpirationUpdateCB& session_expiration_update_cb); |
| 74 |
| 75 // Helper method to create MediaDrmBridge on the Media thread. |
| 76 void Initialize(); |
| 77 |
| 78 // Data. |
| 79 |
| 80 // Object for posting tasks on UI thread. |
| 81 scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner_; |
| 82 |
| 83 // MediaDrmBridge that will be accessed on the Media thread. |
| 84 scoped_ptr<MediaDrmBridge, BrowserCdmDeleter> media_drm_bridge_; |
| 85 |
| 86 // The key system. |
| 87 std::string key_system_; |
| 88 |
| 89 // Required security level. Only makes sense for Widevine system. |
| 90 MediaDrmBridge::SecurityLevel widevine_security_level_; |
| 91 |
| 92 // Callbacks received as parameters, to be called on UI thread |
| 93 SessionMessageCB session_message_cb_; |
| 94 SessionClosedCB session_closed_cb_; |
| 95 LegacySessionErrorCB legacy_session_error_cb_; |
| 96 SessionKeysChangeCB session_keys_change_cb_; |
| 97 SessionExpirationUpdateCB session_expiration_update_cb_; |
| 98 |
| 99 base::WeakPtr<MediaDrmProxy> media_weak_this_; |
| 100 |
| 101 // NOTE: Weak pointers must be invalidated before all other member variables. |
| 102 base::WeakPtrFactory<MediaDrmProxy> media_weak_factory_; |
| 103 |
| 104 DISALLOW_COPY_AND_ASSIGN(MediaDrmProxy); |
| 105 }; |
| 106 |
| 107 } // namespace media |
| 108 |
| 109 #endif // MEDIA_BASE_ANDROID_MEDIA_DRM_PROXY_H_ |
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