1 // Copyright 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_CDM_KEY_SYSTEM_NAMES_H_ 6 #define MEDIA_CDM_KEY_SYSTEM_NAMES_H_ 7 8 #include <string> 9 10 #include "media/base/media_export.h" 11 12 namespace media { 13 14 // TODO(jrummell): Change other uses of Clear Key to use this common value. 15 16 // The key system names for Clear Key. 17 MEDIA_EXPORT extern const char kPrefixedClearKey[]; 18 MEDIA_EXPORT extern const char kUnprefixedClearKey[]; 19 20 // The key system name for External Clear Key. 21 MEDIA_EXPORT extern const char kExternalClearKey[]; 22 23 // Returns true if |key_system| is Clear Key, false otherwise. IsClearKey(const std::string & key_system)24MEDIA_EXPORT inline bool IsClearKey(const std::string& key_system) { 25 return key_system == kPrefixedClearKey || key_system == kUnprefixedClearKey; 26 } 27 28 // Returns true if |key_system| is External Clear Key, false otherwise. 29 MEDIA_EXPORT bool IsExternalClearKey(const std::string& key_system); 30 31 } // namespace media 32 33 #endif // MEDIA_CDM_KEY_SYSTEM_NAMES_H_ 34