| // Copyright 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef MEDIA_BASE_KEY_SYSTEM_INFO_H_ |
| #define MEDIA_BASE_KEY_SYSTEM_INFO_H_ |
| |
| #include <string> |
| |
| #include "media/base/eme_constants.h" |
| #include "media/base/media_export.h" |
| |
| // Definitions: |
| // * Key system |
| // https://dvcs.w3.org/hg/html-media/raw-file/default/encrypted-media/encrypted-media.html#key-system |
| // * Concrete key system |
| // A key system string that can be instantiated, such as |
| // via the MediaKeys constructor. Examples include "org.w3.clearkey" and |
| // "com.widevine.alpha". |
| // * Abstract key system |
| // A key system string that cannot be instantiated like a concrete key system |
| // but is otherwise useful, such as in discovery using isTypeSupported(). |
| // * Parent key system |
| // A key system string that is one level up from the child key system. It may |
| // be an abstract key system. |
| // As an example, "com.example" is the parent of "com.example.foo". |
| |
| namespace media { |
| |
| // Contains information about an EME key system as well as how to instantiate |
| // the corresponding CDM. |
| struct MEDIA_EXPORT KeySystemInfo { |
| KeySystemInfo(); |
| ~KeySystemInfo(); |
| |
| std::string key_system; |
| |
| // Specifies registered initialization data types supported by |key_system|. |
| SupportedInitDataTypes supported_init_data_types; |
| |
| // Specifies codecs supported by |key_system|. |
| SupportedCodecs supported_codecs; |
| |
| // Specifies session types and features supported by |key_system|. |
| EmeSessionTypeSupport persistent_license_support; |
| EmeSessionTypeSupport persistent_release_message_support; |
| EmeFeatureSupport persistent_state_support; |
| EmeFeatureSupport distinctive_identifier_support; |
| |
| // A hierarchical parent for |key_system|. This value can be used to check |
| // supported types but cannot be used to instantiate a MediaKeys object. |
| // Only one parent key system is currently supported per concrete key system. |
| std::string parent_key_system; |
| |
| // The following indicate how the corresponding CDM should be instantiated. |
| bool use_aes_decryptor; |
| #if defined(ENABLE_PEPPER_CDMS) |
| std::string pepper_type; |
| #endif |
| }; |
| |
| } // namespace media |
| |
| #endif // MEDIA_BASE_KEY_SYSTEM_INFO_H_ |