| // Copyright 2019 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 CAST_STREAMING_RTCP_SESSION_H_ |
| #define CAST_STREAMING_RTCP_SESSION_H_ |
| |
| #include "cast/streaming/ntp_time.h" |
| #include "cast/streaming/ssrc.h" |
| |
| namespace openscreen { |
| namespace cast { |
| |
| // Session-level configuration and shared components for the RTCP messaging |
| // associated with a single Cast RTP stream. Multiple packet serialization and |
| // parsing components share a single RtcpSession instance for data consistency. |
| class RtcpSession { |
| public: |
| // |start_time| should be the current time, as it is used by NtpTimeConverter |
| // to set a fixed reference point between the local Clock and current "real |
| // world" wall time. |
| RtcpSession(Ssrc sender_ssrc, |
| Ssrc receiver_ssrc, |
| Clock::time_point start_time); |
| ~RtcpSession(); |
| |
| Ssrc sender_ssrc() const { return sender_ssrc_; } |
| Ssrc receiver_ssrc() const { return receiver_ssrc_; } |
| const NtpTimeConverter& ntp_converter() const { return ntp_converter_; } |
| |
| private: |
| const Ssrc sender_ssrc_; |
| const Ssrc receiver_ssrc_; |
| |
| // Translates between system time (internal format) and NTP (wire format). |
| NtpTimeConverter ntp_converter_; |
| }; |
| |
| } // namespace cast |
| } // namespace openscreen |
| |
| #endif // CAST_STREAMING_RTCP_SESSION_H_ |