|  | *  Copyright 2016 The WebRTC project authors. All Rights Reserved. | 
|  | *  Use of this source code is governed by a BSD-style license | 
|  | *  that can be found in the LICENSE file in the root of the source | 
|  | *  tree. An additional intellectual property rights grant can be found | 
|  | *  in the file PATENTS.  All contributing project authors may | 
|  | *  be found in the AUTHORS file in the root of the source tree. | 
|  | #ifndef API_MEDIATYPES_H_ | 
|  | #define API_MEDIATYPES_H_ | 
|  | std::string MediaTypeToString(MediaType type); | 
|  | // Aborts on invalid string. Only expected to be used on strings that are | 
|  | // guaranteed to be valid, such as MediaStreamTrackInterface::kind(). | 
|  | MediaType MediaTypeFromString(const std::string& type_str); | 
|  | #endif  // API_MEDIATYPES_H_ |