OLD | NEW |
1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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 WEBKIT_MEDIA_CRYPTO_PROXY_DECRYPTOR_H_ | 5 #ifndef WEBKIT_MEDIA_CRYPTO_PROXY_DECRYPTOR_H_ |
6 #define WEBKIT_MEDIA_CRYPTO_PROXY_DECRYPTOR_H_ | 6 #define WEBKIT_MEDIA_CRYPTO_PROXY_DECRYPTOR_H_ |
7 | 7 |
8 #include <string> | 8 #include <string> |
9 | 9 |
10 #include "base/memory/scoped_ptr.h" | 10 #include "base/memory/scoped_ptr.h" |
| 11 #include "base/memory/weak_ptr.h" |
11 #include "base/synchronization/lock.h" | 12 #include "base/synchronization/lock.h" |
12 #include "media/base/decryptor.h" | 13 #include "media/base/decryptor.h" |
13 | 14 |
14 namespace media { | |
15 class DecryptorClient; | |
16 } | |
17 | |
18 namespace WebKit { | 15 namespace WebKit { |
19 class WebFrame; | 16 class WebFrame; |
20 class WebMediaPlayerClient; | 17 class WebMediaPlayerClient; |
21 } | 18 } |
22 | 19 |
23 namespace webkit_media { | 20 namespace webkit_media { |
24 | 21 |
25 // A decryptor proxy that creates a real decryptor object on demand and | 22 // A decryptor proxy that creates a real decryptor object on demand and |
26 // forwards decryptor calls to it. | 23 // forwards decryptor calls to it. |
27 // TODO(xhwang): Currently we don't support run-time switching among decryptor | 24 // TODO(xhwang): Currently we don't support run-time switching among decryptor |
28 // objects. Fix this when needed. | 25 // objects. Fix this when needed. |
29 class ProxyDecryptor { | 26 class ProxyDecryptor { |
30 public: | 27 public: |
31 ProxyDecryptor(media::DecryptorClient* decryptor_client, | 28 ProxyDecryptor(WebKit::WebMediaPlayerClient* web_media_player_client, |
32 WebKit::WebMediaPlayerClient* web_media_player_client, | 29 WebKit::WebFrame* web_frame, |
33 WebKit::WebFrame* web_frame); | 30 const media::KeyAddedCB& key_added_cb, |
| 31 const media::KeyErrorCB& key_error_cb, |
| 32 const media::KeyMessageCB& key_message_cb, |
| 33 const media::NeedKeyCB& need_key_cb); |
34 virtual ~ProxyDecryptor(); | 34 virtual ~ProxyDecryptor(); |
35 | 35 |
36 // Requests the ProxyDecryptor to notify the decryptor when it's ready through | 36 // Requests the ProxyDecryptor to notify the decryptor when it's ready through |
37 // the |decryptor_ready_cb| provided. | 37 // the |decryptor_ready_cb| provided. |
38 // If |decryptor_ready_cb| is null, the existing callback will be fired with | 38 // If |decryptor_ready_cb| is null, the existing callback will be fired with |
39 // NULL immediately and reset. | 39 // NULL immediately and reset. |
40 void SetDecryptorReadyCB(const media::DecryptorReadyCB& decryptor_ready_cb); | 40 void SetDecryptorReadyCB(const media::DecryptorReadyCB& decryptor_ready_cb); |
41 | 41 |
42 bool GenerateKeyRequest(const std::string& key_system, | 42 bool GenerateKeyRequest(const std::string& key_system, |
43 const std::string& type, | 43 const std::string& type, |
44 const uint8* init_data, int init_data_length); | 44 const uint8* init_data, int init_data_length); |
45 void AddKey(const std::string& key_system, | 45 void AddKey(const std::string& key_system, |
46 const uint8* key, int key_length, | 46 const uint8* key, int key_length, |
47 const uint8* init_data, int init_data_length, | 47 const uint8* init_data, int init_data_length, |
48 const std::string& session_id); | 48 const std::string& session_id); |
49 void CancelKeyRequest(const std::string& key_system, | 49 void CancelKeyRequest(const std::string& key_system, |
50 const std::string& session_id); | 50 const std::string& session_id); |
51 | 51 |
52 private: | 52 private: |
53 // Helper functions to create decryptors to handle the given |key_system|. | 53 // Helper functions to create decryptors to handle the given |key_system|. |
54 scoped_ptr<media::Decryptor> CreatePpapiDecryptor( | 54 scoped_ptr<media::Decryptor> CreatePpapiDecryptor( |
55 const std::string& key_system); | 55 const std::string& key_system); |
56 scoped_ptr<media::Decryptor> CreateDecryptor(const std::string& key_system); | 56 scoped_ptr<media::Decryptor> CreateDecryptor(const std::string& key_system); |
57 | 57 |
58 // DecryptorClient through which key events are fired. | 58 // Callbacks for firing key events. |
59 media::DecryptorClient* client_; | 59 void KeyAdded(const std::string& key_system, const std::string& session_id); |
| 60 void KeyError(const std::string& key_system, |
| 61 const std::string& session_id, |
| 62 media::Decryptor::KeyError error_code, |
| 63 int system_code); |
| 64 void KeyMessage(const std::string& key_system, |
| 65 const std::string& session_id, |
| 66 const std::string& message, |
| 67 const std::string& default_url); |
| 68 void NeedKey(const std::string& key_system, |
| 69 const std::string& session_id, |
| 70 const std::string& type, |
| 71 scoped_array<uint8> init_data, int init_data_size); |
60 | 72 |
61 // Needed to create the PpapiDecryptor. | 73 // Needed to create the PpapiDecryptor. |
62 WebKit::WebMediaPlayerClient* web_media_player_client_; | 74 WebKit::WebMediaPlayerClient* web_media_player_client_; |
63 WebKit::WebFrame* web_frame_; | 75 WebKit::WebFrame* web_frame_; |
64 | 76 |
| 77 // Callbacks for firing key events. |
| 78 media::KeyAddedCB key_added_cb_; |
| 79 media::KeyErrorCB key_error_cb_; |
| 80 media::KeyMessageCB key_message_cb_; |
| 81 media::NeedKeyCB need_key_cb_; |
| 82 |
65 // Protects the |decryptor_|. Note that |decryptor_| itself should be thread | 83 // Protects the |decryptor_|. Note that |decryptor_| itself should be thread |
66 // safe as per the Decryptor interface. | 84 // safe as per the Decryptor interface. |
67 base::Lock lock_; | 85 base::Lock lock_; |
68 | 86 |
69 media::DecryptorReadyCB decryptor_ready_cb_; | 87 media::DecryptorReadyCB decryptor_ready_cb_; |
70 | 88 |
71 // The real decryptor that does decryption for the ProxyDecryptor. | 89 // The real decryptor that does decryption for the ProxyDecryptor. |
72 // This pointer is protected by the |lock_|. | 90 // This pointer is protected by the |lock_|. |
73 scoped_ptr<media::Decryptor> decryptor_; | 91 scoped_ptr<media::Decryptor> decryptor_; |
74 | 92 |
| 93 base::WeakPtrFactory<ProxyDecryptor> weak_ptr_factory_; |
| 94 |
75 DISALLOW_COPY_AND_ASSIGN(ProxyDecryptor); | 95 DISALLOW_COPY_AND_ASSIGN(ProxyDecryptor); |
76 }; | 96 }; |
77 | 97 |
78 } // namespace webkit_media | 98 } // namespace webkit_media |
79 | 99 |
80 #endif // WEBKIT_MEDIA_CRYPTO_PROXY_DECRYPTOR_H_ | 100 #endif // WEBKIT_MEDIA_CRYPTO_PROXY_DECRYPTOR_H_ |
OLD | NEW |