webrtc_m130/pc/rtptransport.h
Zhi Huang 942bc2e4b9 Reland: Replaced the SignalSelectedCandidatePairChanged with a new signal.
|packet_overhead| field is added to rtc::NetworkRoute structure.

In PackTransportInternal:
1. network_route() is added which returns the current network route.
2. debug_name() is removed.
3. transport_name() is moved from DtlsTransportInternal and
IceTransportInternal to PacketTransportInternal.

When the selected candidate pair is changed, the P2PTransportChannel
will fire the SignalNetworkRouteChanged instead of
SignalSelectedCandidatePairChanged to upper layers.

The Rtp/SrtpTransport takes the responsibility of calculating the
transport overhead from the BaseChannel so that the BaseChannel
doesn't need to depend on P2P layer transports.

TBR=pthatcher@webrtc.org

Bug: webrtc:7013
Change-Id: If9928b25a7259544c2d9c42048b53ab24292fc67
Reviewed-on: https://webrtc-review.googlesource.com/22767
Reviewed-by: Zhi Huang <zhihuang@webrtc.org>
Commit-Queue: Zhi Huang <zhihuang@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#20664}
2017-11-13 22:50:11 +00:00

119 lines
3.6 KiB
C++

/*
* Copyright 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.
*/
#ifndef PC_RTPTRANSPORT_H_
#define PC_RTPTRANSPORT_H_
#include <string>
#include "pc/bundlefilter.h"
#include "pc/rtptransportinternal.h"
#include "rtc_base/sigslot.h"
namespace rtc {
class CopyOnWriteBuffer;
struct PacketOptions;
struct PacketTime;
class PacketTransportInternal;
} // namespace rtc
namespace webrtc {
class RtpTransport : public RtpTransportInternal {
public:
RtpTransport(const RtpTransport&) = delete;
RtpTransport& operator=(const RtpTransport&) = delete;
explicit RtpTransport(bool rtcp_mux_enabled)
: rtcp_mux_enabled_(rtcp_mux_enabled) {}
bool rtcp_mux_enabled() const { return rtcp_mux_enabled_; }
void SetRtcpMuxEnabled(bool enable) override;
rtc::PacketTransportInternal* rtp_packet_transport() const override {
return rtp_packet_transport_;
}
void SetRtpPacketTransport(rtc::PacketTransportInternal* rtp) override;
rtc::PacketTransportInternal* rtcp_packet_transport() const override {
return rtcp_packet_transport_;
}
void SetRtcpPacketTransport(rtc::PacketTransportInternal* rtcp) override;
PacketTransportInterface* GetRtpPacketTransport() const override;
PacketTransportInterface* GetRtcpPacketTransport() const override;
// TODO(zstein): Use these RtcpParameters for configuration elsewhere.
RTCError SetParameters(const RtpTransportParameters& parameters) override;
RtpTransportParameters GetParameters() const override;
bool IsWritable(bool rtcp) const override;
bool SendRtpPacket(rtc::CopyOnWriteBuffer* packet,
const rtc::PacketOptions& options,
int flags) override;
bool SendRtcpPacket(rtc::CopyOnWriteBuffer* packet,
const rtc::PacketOptions& options,
int flags) override;
bool HandlesPayloadType(int payload_type) const override;
void AddHandledPayloadType(int payload_type) override;
protected:
// TODO(zstein): Remove this when we remove RtpTransportAdapter.
RtpTransportAdapter* GetInternal() override;
private:
bool HandlesPacket(const uint8_t* data, size_t len);
void OnReadyToSend(rtc::PacketTransportInternal* transport);
void OnNetworkRouteChange(rtc::Optional<rtc::NetworkRoute> network_route);
// Updates "ready to send" for an individual channel and fires
// SignalReadyToSend.
void SetReadyToSend(bool rtcp, bool ready);
void MaybeSignalReadyToSend();
bool SendPacket(bool rtcp,
rtc::CopyOnWriteBuffer* packet,
const rtc::PacketOptions& options,
int flags);
void OnReadPacket(rtc::PacketTransportInternal* transport,
const char* data,
size_t len,
const rtc::PacketTime& packet_time,
int flags);
bool WantsPacket(bool rtcp, const rtc::CopyOnWriteBuffer* packet);
bool rtcp_mux_enabled_;
rtc::PacketTransportInternal* rtp_packet_transport_ = nullptr;
rtc::PacketTransportInternal* rtcp_packet_transport_ = nullptr;
bool ready_to_send_ = false;
bool rtp_ready_to_send_ = false;
bool rtcp_ready_to_send_ = false;
RtpTransportParameters parameters_;
cricket::BundleFilter bundle_filter_;
};
} // namespace webrtc
#endif // PC_RTPTRANSPORT_H_