1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 // A very simple packet builder class for building RTCP packets.
6 // Used for testing only.
7 #ifndef MEDIA_CAST_RTCP_TEST_RTCP_PACKET_BUILDER_H_
8 #define MEDIA_CAST_RTCP_TEST_RTCP_PACKET_BUILDER_H_
10 #include "base/big_endian.h"
11 #include "media/cast/cast_config.h"
12 #include "media/cast/net/cast_transport_defines.h"
13 #include "media/cast/net/rtcp/rtcp_defines.h"
18 // These values are arbitrary only for the purpose of testing.
22 static const int kNtpHigh = 0x01020304;
23 static const int kNtpLow = 0x05060708;
24 static const int kRtpTimestamp = 0x10203040;
25 static const int kSendPacketCount = 987;
26 static const int kSendOctetCount = 87654;
29 static const int kLoss = 0x01000123;
30 static const int kExtendedMax = 0x15678;
31 static const int kTestJitter = 0x10203;
32 static const int kLastSr = 0x34561234;
33 static const int kDelayLastSr = 1000;
36 static const int kLastRr = 0x34561234;
37 static const int kDelayLastRr = 1000;
40 static const int kMissingPacket = 34567;
43 static const uint32 kAckFrameId = 17;
44 static const uint32 kLostFrameId = 18;
45 static const uint32 kFrameIdWithLostPackets = 19;
46 static const int kLostPacketId1 = 3;
47 static const int kLostPacketId2 = 5;
48 static const int kLostPacketId3 = 12;
51 class TestRtcpPacketBuilder {
53 TestRtcpPacketBuilder();
55 void AddSr(uint32 sender_ssrc, int number_of_report_blocks);
56 void AddSrWithNtp(uint32 sender_ssrc,
59 uint32 rtp_timestamp);
60 void AddRr(uint32 sender_ssrc, int number_of_report_blocks);
61 void AddRb(uint32 rtp_ssrc);
63 void AddXrHeader(uint32 sender_ssrc);
64 void AddXrDlrrBlock(uint32 sender_ssrc);
65 void AddXrExtendedDlrrBlock(uint32 sender_ssrc);
66 void AddXrRrtrBlock();
67 void AddXrUnknownBlock();
69 void AddNack(uint32 sender_ssrc, uint32 media_ssrc);
70 void AddSendReportRequest(uint32 sender_ssrc, uint32 media_ssrc);
72 void AddCast(uint32 sender_ssrc,
74 base::TimeDelta target_delay);
75 void AddReceiverLog(uint32 sender_ssrc);
76 void AddReceiverFrameLog(uint32 rtp_timestamp,
78 uint32 event_timesamp_base);
79 void AddReceiverEventLog(uint16 event_data,
80 CastLoggingEvent event,
81 uint16 event_timesamp_delta);
83 scoped_ptr<Packet> GetPacket();
85 int Length() { return kMaxIpPacketSize - big_endian_writer_.remaining(); }
88 void AddRtcpHeader(int payload, int format_or_count);
89 void PatchLengthField();
91 // Where the length field of the current packet is.
92 // Note: 0 is not a legal value, it is used for "uninitialized".
93 uint8 buffer_[kMaxIpPacketSize];
95 base::BigEndianWriter big_endian_writer_;
97 DISALLOW_COPY_AND_ASSIGN(TestRtcpPacketBuilder);
103 #endif // MEDIA_CAST_RTCP_TEST_RTCP_PACKET_BUILDER_H_