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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 | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef MEDIA_BASE_DECRYPTOR_CLIENT_H_ | |
6 #define MEDIA_BASE_DECRYPTOR_CLIENT_H_ | |
7 | |
8 #include <string> | |
9 | |
10 #include "base/memory/scoped_ptr.h" | |
11 #include "media/base/decryptor.h" | |
12 | |
13 namespace media { | |
14 | |
15 // Interface used by a decryptor to fire key events. | |
16 // See: http://dvcs.w3.org/hg/html-media/raw-file/tip/encrypted-media/encrypted-
media.html#event-summary | |
17 class DecryptorClient { | |
18 public: | |
19 // Signals that a key has been added. | |
20 virtual void KeyAdded(const std::string& key_system, | |
21 const std::string& session_id) = 0; | |
22 | |
23 // Signals that a key error occurred. The |system_code| is key | |
24 // system-dependent. For clear key system, the |system_code| is always zero. | |
25 virtual void KeyError(const std::string& key_system, | |
26 const std::string& session_id, | |
27 Decryptor::KeyError error_code, | |
28 int system_code) = 0; | |
29 | |
30 // Signals that a key message has been generated. | |
31 virtual void KeyMessage(const std::string& key_system, | |
32 const std::string& session_id, | |
33 const std::string& message, | |
34 const std::string& default_url) = 0; | |
35 | |
36 // Signals that a key is needed for decryption. |key_system| and |session_id| | |
37 // can be empty if the key system has not been selected. | |
38 // TODO(xhwang): Figure out if "type" is optional for NeedKey fired from the | |
39 // decoder. | |
40 virtual void NeedKey(const std::string& key_system, | |
41 const std::string& session_id, | |
42 const std::string& type, | |
43 scoped_array<uint8> init_data, | |
44 int init_data_length) = 0; | |
45 | |
46 protected: | |
47 virtual ~DecryptorClient() {} | |
48 }; | |
49 | |
50 } // namespace media | |
51 | |
52 #endif // MEDIA_BASE_DECRYPTOR_CLIENT_H_ | |
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