Line data    Source code

       1             : /*
       2             :  *  Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
       3             :  *
       4             :  *  Use of this source code is governed by a BSD-style license
       5             :  *  that can be found in the LICENSE file in the root of the source
       6             :  *  tree. An additional intellectual property rights grant can be found
       7             :  *  in the file PATENTS.  All contributing project authors may
       8             :  *  be found in the AUTHORS file in the root of the source tree.
       9             :  */
      10             : 
      11             : #ifndef WEBRTC_MODULES_AUDIO_CODING_CODECS_AUDIO_FORMAT_H_
      12             : #define WEBRTC_MODULES_AUDIO_CODING_CODECS_AUDIO_FORMAT_H_
      13             : 
      14             : #include <map>
      15             : #include <ostream>
      16             : #include <string>
      17             : #include <utility>
      18             : 
      19             : namespace webrtc {
      20             : 
      21             : // SDP specification for a single audio codec.
      22             : // NOTE: This class is still under development and may change without notice.
      23           0 : struct SdpAudioFormat {
      24             :   using Parameters = std::map<std::string, std::string>;
      25             : 
      26             :   SdpAudioFormat(const SdpAudioFormat&);
      27             :   SdpAudioFormat(SdpAudioFormat&&);
      28             :   SdpAudioFormat(const char* name, int clockrate_hz, int num_channels);
      29             :   SdpAudioFormat(const char* name,
      30             :                  int clockrate_hz,
      31             :                  int num_channels,
      32             :                  Parameters&& param);
      33             :   ~SdpAudioFormat();
      34             : 
      35             :   SdpAudioFormat& operator=(const SdpAudioFormat&);
      36             :   SdpAudioFormat& operator=(SdpAudioFormat&&);
      37             : 
      38             :   friend bool operator==(const SdpAudioFormat& a, const SdpAudioFormat& b);
      39             :   friend bool operator!=(const SdpAudioFormat& a, const SdpAudioFormat& b) {
      40             :     return !(a == b);
      41             :   }
      42             : 
      43             :   std::string name;
      44             :   int clockrate_hz;
      45             :   int num_channels;
      46             :   Parameters parameters;
      47             : };
      48             : 
      49             : void swap(SdpAudioFormat& a, SdpAudioFormat& b);
      50             : std::ostream& operator<<(std::ostream& os, const SdpAudioFormat& saf);
      51             : 
      52           0 : struct AudioCodecSpec {
      53             :   SdpAudioFormat format;
      54             :   bool allow_comfort_noise;  // This encoder can be used with an external
      55             :                              // comfort noise generator.
      56             : };
      57             : 
      58             : }  // namespace webrtc
      59             : 
      60             : #endif  // WEBRTC_MODULES_AUDIO_CODING_CODECS_AUDIO_FORMAT_H_