/* * Copyright (c) 2017 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.
*/
// This class allows us to store unencoded RTC events. Subclasses of this class // store the actual information. This allows us to keep all unencoded events, // even when their type and associated information differ, in the same buffer. // Additionally, it prevents dependency leaking - a module that only logs // events of type RtcEvent_A doesn't need to know about anything associated // with events of type RtcEvent_B. class RtcEvent { public: // Subclasses of this class have to associate themselves with a unique value // of Type. This leaks the information of existing subclasses into the // superclass, but the *actual* information - rtclog::StreamConfig, etc. - // is kept separate. enumclass Type : uint32_t {
AlrStateEvent,
RouteChangeEvent,
RemoteEstimateEvent,
AudioNetworkAdaptation,
AudioPlayout,
AudioReceiveStreamConfig,
AudioSendStreamConfig,
BweUpdateDelayBased,
BweUpdateLossBased,
DtlsTransportState,
DtlsWritableState,
IceCandidatePairConfig,
IceCandidatePairEvent,
ProbeClusterCreated,
ProbeResultFailure,
ProbeResultSuccess,
RtcpPacketIncoming,
RtcpPacketOutgoing,
RtpPacketIncoming,
RtpPacketOutgoing,
VideoReceiveStreamConfig,
VideoSendStreamConfig,
GenericPacketSent,
GenericPacketReceived,
GenericAckReceived,
FrameDecoded,
NetEqSetMinimumDelay,
BeginV3Log = 0x2501580,
EndV3Log = 0x2501581,
FakeEvent, // For unit testing.
};
RtcEvent(); virtual ~RtcEvent() = default;
virtual Type GetType() const = 0;
virtualbool IsConfigEvent() const = 0;
// Events are grouped by Type before being encoded. // Optionally, `GetGroupKey` can be overloaded to group the // events by a secondary key (in addition to the event type.) // This can, in some cases, improve compression efficiency // e.g. by grouping events by SSRC. virtual uint32_t GetGroupKey() const { return 0; }
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