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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 CHROMECAST_MEDIA_CDM_cast_cdm_H_ | 5 #ifndef CHROMECAST_MEDIA_CDM_cast_cdm_H_ |
6 #define CHROMECAST_MEDIA_CDM_cast_cdm_H_ | 6 #define CHROMECAST_MEDIA_CDM_cast_cdm_H_ |
7 | 7 |
8 #include <stdint.h> | 8 #include <stdint.h> |
9 | 9 |
10 #include <map> | 10 #include <map> |
11 #include <string> | 11 #include <string> |
12 #include <vector> | 12 #include <vector> |
13 | 13 |
14 #include "base/callback.h" | 14 #include "base/callback.h" |
15 #include "base/macros.h" | 15 #include "base/macros.h" |
16 #include "base/memory/ref_counted.h" | 16 #include "base/memory/ref_counted.h" |
17 #include "base/sequenced_task_runner_helpers.h" | 17 #include "base/sequenced_task_runner_helpers.h" |
18 #include "base/threading/thread_checker.h" | 18 #include "base/threading/thread_checker.h" |
19 #include "chromecast/media/base/media_resource_tracker.h" | 19 #include "chromecast/media/base/media_resource_tracker.h" |
20 #include "chromecast/media/cdm/cast_cdm_context.h" | 20 #include "chromecast/media/cdm/cast_cdm_context.h" |
21 #include "chromecast/public/media/cast_key_status.h" | 21 #include "chromecast/public/media/cast_key_status.h" |
22 #include "media/base/cdm_context.h" | 22 #include "media/base/cdm_context.h" |
23 #include "media/base/media_keys.h" | 23 #include "media/base/content_decryption_module.h" |
24 #include "media/base/player_tracker.h" | 24 #include "media/base/player_tracker.h" |
25 #include "media/cdm/json_web_key.h" | 25 #include "media/cdm/json_web_key.h" |
26 | 26 |
27 namespace media { | 27 namespace media { |
28 class PlayerTrackerImpl; | 28 class PlayerTrackerImpl; |
29 } | 29 } |
30 | 30 |
31 namespace chromecast { | 31 namespace chromecast { |
32 namespace media { | 32 namespace media { |
33 class DecryptContextImpl; | 33 class DecryptContextImpl; |
34 | 34 |
35 // CastCdm is an extension of MediaKeys that provides common | 35 // CastCdm is an extension of ContentDecryptionModule that provides common |
36 // functionality across CDM implementations. | 36 // functionality across CDM implementations. |
37 // All these additional functions are synchronous so: | 37 // All these additional functions are synchronous so: |
38 // - either both the CDM and the media pipeline must be running on the same | 38 // - either both the CDM and the media pipeline must be running on the same |
39 // thread, | 39 // thread, |
40 // - or CastCdm implementations must use some locks. | 40 // - or CastCdm implementations must use some locks. |
41 // | 41 // |
42 class CastCdm : public ::media::MediaKeys { | 42 class CastCdm : public ::media::ContentDecryptionModule { |
43 public: | 43 public: |
44 explicit CastCdm(MediaResourceTracker* media_resource_tracker); | 44 explicit CastCdm(MediaResourceTracker* media_resource_tracker); |
45 | 45 |
46 void Initialize( | 46 void Initialize( |
47 const ::media::SessionMessageCB& session_message_cb, | 47 const ::media::SessionMessageCB& session_message_cb, |
48 const ::media::SessionClosedCB& session_closed_cb, | 48 const ::media::SessionClosedCB& session_closed_cb, |
49 const ::media::SessionKeysChangeCB& session_keys_change_cb, | 49 const ::media::SessionKeysChangeCB& session_keys_change_cb, |
50 const ::media::SessionExpirationUpdateCB& session_expiration_update_cb); | 50 const ::media::SessionExpirationUpdateCB& session_expiration_update_cb); |
51 | 51 |
52 int RegisterPlayer(const base::Closure& new_key_cb, | 52 int RegisterPlayer(const base::Closure& new_key_cb, |
53 const base::Closure& cdm_unset_cb); | 53 const base::Closure& cdm_unset_cb); |
54 void UnregisterPlayer(int registration_id); | 54 void UnregisterPlayer(int registration_id); |
55 | 55 |
56 // Returns the decryption context needed to decrypt frames encrypted with | 56 // Returns the decryption context needed to decrypt frames encrypted with |
57 // |key_id|. Returns null if |key_id| is not available. | 57 // |key_id|. Returns null if |key_id| is not available. |
58 virtual std::unique_ptr<DecryptContextImpl> GetDecryptContext( | 58 virtual std::unique_ptr<DecryptContextImpl> GetDecryptContext( |
59 const std::string& key_id) const = 0; | 59 const std::string& key_id) const = 0; |
60 | 60 |
61 // Notifies that key status has changed (e.g. if expiry is detected by | 61 // Notifies that key status has changed (e.g. if expiry is detected by |
62 // hardware decoder). | 62 // hardware decoder). |
63 virtual void SetKeyStatus(const std::string& key_id, | 63 virtual void SetKeyStatus(const std::string& key_id, |
64 CastKeyStatus key_status, | 64 CastKeyStatus key_status, |
65 uint32_t system_code) = 0; | 65 uint32_t system_code) = 0; |
66 | 66 |
67 // ::media::MediaKeys implementation. | 67 // ::media::ContentDecryptionModule implementation. |
68 ::media::CdmContext* GetCdmContext() override; | 68 ::media::CdmContext* GetCdmContext() override; |
69 | 69 |
70 protected: | 70 protected: |
71 ~CastCdm() override; | 71 ~CastCdm() override; |
72 | 72 |
73 void OnSessionMessage(const std::string& session_id, | 73 void OnSessionMessage( |
74 const std::vector<uint8_t>& message, | 74 const std::string& session_id, |
75 ::media::MediaKeys::MessageType message_type); | 75 const std::vector<uint8_t>& message, |
| 76 ::media::ContentDecryptionModule::MessageType message_type); |
76 void OnSessionClosed(const std::string& session_id); | 77 void OnSessionClosed(const std::string& session_id); |
77 void OnSessionKeysChange(const std::string& session_id, | 78 void OnSessionKeysChange(const std::string& session_id, |
78 bool newly_usable_keys, | 79 bool newly_usable_keys, |
79 ::media::CdmKeysInfo keys_info); | 80 ::media::CdmKeysInfo keys_info); |
80 | 81 |
81 void KeyIdAndKeyPairsToInfo(const ::media::KeyIdAndKeyPairs& keys, | 82 void KeyIdAndKeyPairsToInfo(const ::media::KeyIdAndKeyPairs& keys, |
82 ::media::CdmKeysInfo* key_info); | 83 ::media::CdmKeysInfo* key_info); |
83 | 84 |
84 private: | 85 private: |
85 // Allow subclasses to override to provide key sysytem specific | 86 // Allow subclasses to override to provide key sysytem specific |
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97 | 98 |
98 base::ThreadChecker thread_checker_; | 99 base::ThreadChecker thread_checker_; |
99 | 100 |
100 DISALLOW_COPY_AND_ASSIGN(CastCdm); | 101 DISALLOW_COPY_AND_ASSIGN(CastCdm); |
101 }; | 102 }; |
102 | 103 |
103 } // namespace media | 104 } // namespace media |
104 } // namespace chromecast | 105 } // namespace chromecast |
105 | 106 |
106 #endif // CHROMECAST_MEDIA_CDM_cast_cdm_H_ | 107 #endif // CHROMECAST_MEDIA_CDM_cast_cdm_H_ |
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