55 lines
1.9 KiB
C
55 lines
1.9 KiB
C
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/*
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* Copyright 2020 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef PC_SDP_STATE_PROVIDER_H_
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#define PC_SDP_STATE_PROVIDER_H_
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#include <string>
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#include "api/jsep.h"
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#include "api/peer_connection_interface.h"
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namespace webrtc {
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// This interface provides access to the state of an SDP offer/answer
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// negotiation.
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//
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// All the functions are const, so using this interface serves as
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// assurance that the user is not modifying the state.
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class SdpStateProvider {
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public:
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virtual ~SdpStateProvider() {}
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virtual PeerConnectionInterface::SignalingState signaling_state() const = 0;
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virtual const SessionDescriptionInterface* local_description() const = 0;
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virtual const SessionDescriptionInterface* remote_description() const = 0;
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virtual const SessionDescriptionInterface* current_local_description()
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const = 0;
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virtual const SessionDescriptionInterface* current_remote_description()
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const = 0;
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virtual const SessionDescriptionInterface* pending_local_description()
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const = 0;
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virtual const SessionDescriptionInterface* pending_remote_description()
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const = 0;
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// Whether an ICE restart has been asked for. Used in CreateOffer.
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virtual bool NeedsIceRestart(const std::string& content_name) const = 0;
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// Whether an ICE restart was indicated in the remote offer.
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// Used in CreateAnswer.
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virtual bool IceRestartPending(const std::string& content_name) const = 0;
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virtual absl::optional<rtc::SSLRole> GetDtlsRole(
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const std::string& mid) const = 0;
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};
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} // namespace webrtc
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#endif // PC_SDP_STATE_PROVIDER_H_
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