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
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
|
/*
* Copyright (c) 2014 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.
*/
#include "test/rtcp_packet_parser.h"
#include <cstdint>
#include "api/array_view.h"
#include "modules/rtp_rtcp/source/rtcp_packet/app.h"
#include "modules/rtp_rtcp/source/rtcp_packet/bye.h"
#include "modules/rtp_rtcp/source/rtcp_packet/common_header.h"
#include "modules/rtp_rtcp/source/rtcp_packet/extended_reports.h"
#include "modules/rtp_rtcp/source/rtcp_packet/fir.h"
#include "modules/rtp_rtcp/source/rtcp_packet/nack.h"
#include "modules/rtp_rtcp/source/rtcp_packet/pli.h"
#include "modules/rtp_rtcp/source/rtcp_packet/psfb.h"
#include "modules/rtp_rtcp/source/rtcp_packet/rapid_resync_request.h"
#include "modules/rtp_rtcp/source/rtcp_packet/receiver_report.h"
#include "modules/rtp_rtcp/source/rtcp_packet/rtpfb.h"
#include "modules/rtp_rtcp/source/rtcp_packet/sdes.h"
#include "modules/rtp_rtcp/source/rtcp_packet/sender_report.h"
#include "modules/rtp_rtcp/source/rtcp_packet/tmmbn.h"
#include "modules/rtp_rtcp/source/rtcp_packet/tmmbr.h"
#include "modules/rtp_rtcp/source/rtcp_packet/transport_feedback.h"
#include "rtc_base/checks.h"
#include "rtc_base/logging.h"
namespace webrtc {
namespace test {
RtcpPacketParser::RtcpPacketParser() = default;
RtcpPacketParser::~RtcpPacketParser() = default;
bool RtcpPacketParser::Parse(ArrayView<const uint8_t> data) {
++processed_rtcp_packets_;
const uint8_t* const buffer = data.data();
const uint8_t* const buffer_end = buffer + data.size();
rtcp::CommonHeader header;
for (const uint8_t* next_packet = buffer; next_packet != buffer_end;
next_packet = header.NextPacket()) {
RTC_DCHECK_GT(buffer_end - next_packet, 0);
if (!header.Parse(next_packet, buffer_end - next_packet)) {
RTC_LOG(LS_WARNING)
<< "Invalid rtcp header or unaligned rtcp packet at position "
<< (next_packet - buffer);
return false;
}
switch (header.type()) {
case rtcp::App::kPacketType:
app_.Parse(header);
break;
case rtcp::Bye::kPacketType:
bye_.Parse(header, &sender_ssrc_);
break;
case rtcp::ExtendedReports::kPacketType:
xr_.Parse(header, &sender_ssrc_);
break;
case rtcp::Psfb::kPacketType:
switch (header.fmt()) {
case rtcp::Fir::kFeedbackMessageType:
fir_.Parse(header, &sender_ssrc_);
break;
case rtcp::Pli::kFeedbackMessageType:
pli_.Parse(header, &sender_ssrc_);
break;
case rtcp::Psfb::kAfbMessageType:
if (!loss_notification_.Parse(header, &sender_ssrc_) &&
!remb_.Parse(header, &sender_ssrc_)) {
RTC_LOG(LS_WARNING) << "Unknown application layer FB message.";
}
break;
default:
RTC_LOG(LS_WARNING)
<< "Unknown rtcp payload specific feedback type "
<< header.fmt();
break;
}
break;
case rtcp::ReceiverReport::kPacketType:
receiver_report_.Parse(header, &sender_ssrc_);
break;
case rtcp::Rtpfb::kPacketType:
switch (header.fmt()) {
case rtcp::Nack::kFeedbackMessageType:
nack_.Parse(header, &sender_ssrc_);
break;
case rtcp::RapidResyncRequest::kFeedbackMessageType:
rrr_.Parse(header, &sender_ssrc_);
break;
case rtcp::Tmmbn::kFeedbackMessageType:
tmmbn_.Parse(header, &sender_ssrc_);
break;
case rtcp::Tmmbr::kFeedbackMessageType:
tmmbr_.Parse(header, &sender_ssrc_);
break;
case rtcp::TransportFeedback::kFeedbackMessageType:
transport_feedback_.Parse(header, &sender_ssrc_);
break;
default:
RTC_LOG(LS_WARNING)
<< "Unknown rtcp transport feedback type " << header.fmt();
break;
}
break;
case rtcp::Sdes::kPacketType:
sdes_.Parse(header);
break;
case rtcp::SenderReport::kPacketType:
sender_report_.Parse(header, &sender_ssrc_);
break;
default:
RTC_LOG(LS_WARNING) << "Unknown rtcp packet type " << header.type();
break;
}
}
return true;
}
} // namespace test
} // namespace webrtc
|
