1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
|
/*
* 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_RTP_TRANSPORT_INTERNAL_H_
#define PC_RTP_TRANSPORT_INTERNAL_H_
#include <string>
#include "call/rtp_demuxer.h"
#include "p2p/base/ice_transport_internal.h"
#include "pc/session_description.h"
#include "rtc_base/network_route.h"
#include "rtc_base/ssl_stream_adapter.h"
#include "rtc_base/third_party/sigslot/sigslot.h"
namespace rtc {
class CopyOnWriteBuffer;
struct PacketOptions;
} // namespace rtc
namespace webrtc {
// This class is an internal interface; it is not accessible to API consumers
// but is accessible to internal classes in order to send and receive RTP and
// RTCP packets belonging to a single RTP session. Additional convenience and
// configuration methods are also provided.
class RtpTransportInternal : public sigslot::has_slots<> {
public:
virtual ~RtpTransportInternal() = default;
virtual void SetRtcpMuxEnabled(bool enable) = 0;
virtual const std::string& transport_name() const = 0;
// Sets socket options on the underlying RTP or RTCP transports.
virtual int SetRtpOption(rtc::Socket::Option opt, int value) = 0;
virtual int SetRtcpOption(rtc::Socket::Option opt, int value) = 0;
virtual bool rtcp_mux_enabled() const = 0;
virtual bool IsReadyToSend() const = 0;
// Called whenever a transport's ready-to-send state changes. The argument
// is true if all used transports are ready to send. This is more specific
// than just "writable"; it means the last send didn't return ENOTCONN.
sigslot::signal1<bool> SignalReadyToSend;
// Called whenever an RTCP packet is received. There is no equivalent signal
// for RTP packets because they would be forwarded to the BaseChannel through
// the RtpDemuxer callback.
sigslot::signal2<rtc::CopyOnWriteBuffer*, int64_t> SignalRtcpPacketReceived;
// Called whenever the network route of the P2P layer transport changes.
// The argument is an optional network route.
sigslot::signal1<absl::optional<rtc::NetworkRoute>> SignalNetworkRouteChanged;
// Called whenever a transport's writable state might change. The argument is
// true if the transport is writable, otherwise it is false.
sigslot::signal1<bool> SignalWritableState;
sigslot::signal1<const rtc::SentPacket&> SignalSentPacket;
virtual bool IsWritable(bool rtcp) const = 0;
// TODO(zhihuang): Pass the `packet` by copy so that the original data
// wouldn't be modified.
virtual bool SendRtpPacket(rtc::CopyOnWriteBuffer* packet,
const rtc::PacketOptions& options,
int flags) = 0;
virtual bool SendRtcpPacket(rtc::CopyOnWriteBuffer* packet,
const rtc::PacketOptions& options,
int flags) = 0;
// This method updates the RTP header extension map so that the RTP transport
// can parse the received packets and identify the MID. This is called by the
// BaseChannel when setting the content description.
//
// TODO(zhihuang): Merging and replacing following methods handling header
// extensions with SetParameters:
// UpdateRtpHeaderExtensionMap,
// UpdateSendEncryptedHeaderExtensionIds,
// UpdateRecvEncryptedHeaderExtensionIds,
// CacheRtpAbsSendTimeHeaderExtension,
virtual void UpdateRtpHeaderExtensionMap(
const cricket::RtpHeaderExtensions& header_extensions) = 0;
virtual bool IsSrtpActive() const = 0;
virtual bool RegisterRtpDemuxerSink(const RtpDemuxerCriteria& criteria,
RtpPacketSinkInterface* sink) = 0;
virtual bool UnregisterRtpDemuxerSink(RtpPacketSinkInterface* sink) = 0;
};
} // namespace webrtc
#endif // PC_RTP_TRANSPORT_INTERNAL_H_
|
