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1 // Copyright 2013 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. | |
4 | |
5 #include "media/cast/net/rtp_sender/rtp_packetizer/rtp_packetizer.h" | |
6 | |
7 #include "base/memory/scoped_ptr.h" | |
8 #include "base/test/simple_test_tick_clock.h" | |
9 #include "media/cast/cast_config.h" | |
10 #include "media/cast/net/pacing/paced_sender.h" | |
11 #include "media/cast/net/rtp_sender/packet_storage/packet_storage.h" | |
12 #include "media/cast/net/rtp_sender/rtp_packetizer/test/rtp_header_parser.h" | |
13 #include "testing/gmock/include/gmock/gmock.h" | |
14 | |
15 namespace media { | |
16 namespace cast { | |
17 | |
18 static const int kPayload = 127; | |
19 static const uint32 kTimestampMs = 10; | |
20 static const uint16 kSeqNum = 33; | |
21 static const int kMaxPacketLength = 1500; | |
22 static const int kSsrc = 0x12345; | |
23 static const unsigned int kFrameSize = 5000; | |
24 static const int kMaxPacketStorageTimeMs = 300; | |
25 | |
26 class TestRtpPacketTransport : public PacedPacketSender { | |
27 public: | |
28 explicit TestRtpPacketTransport(RtpPacketizerConfig config) | |
29 : config_(config), | |
30 sequence_number_(kSeqNum), | |
31 packets_sent_(0), | |
32 expected_number_of_packets_(0), | |
33 expected_packet_id_(0), | |
34 expected_frame_id_(0) {} | |
35 | |
36 void VerifyRtpHeader(const RtpCastTestHeader& rtp_header) { | |
37 VerifyCommonRtpHeader(rtp_header); | |
38 VerifyCastRtpHeader(rtp_header); | |
39 } | |
40 | |
41 void VerifyCommonRtpHeader(const RtpCastTestHeader& rtp_header) { | |
42 EXPECT_EQ(expected_number_of_packets_ == packets_sent_, | |
43 rtp_header.marker); | |
44 EXPECT_EQ(kPayload, rtp_header.payload_type); | |
45 EXPECT_EQ(sequence_number_, rtp_header.sequence_number); | |
46 EXPECT_EQ(kTimestampMs * 90, rtp_header.rtp_timestamp); | |
47 EXPECT_EQ(config_.ssrc, rtp_header.ssrc); | |
48 EXPECT_EQ(0, rtp_header.num_csrcs); | |
49 } | |
50 | |
51 void VerifyCastRtpHeader(const RtpCastTestHeader& rtp_header) { | |
52 EXPECT_FALSE(rtp_header.is_key_frame); | |
53 EXPECT_EQ(expected_frame_id_, rtp_header.frame_id); | |
54 EXPECT_EQ(expected_packet_id_, rtp_header.packet_id); | |
55 EXPECT_EQ(expected_number_of_packets_ - 1, rtp_header.max_packet_id); | |
56 EXPECT_TRUE(rtp_header.is_reference); | |
57 EXPECT_EQ(expected_frame_id_ - 1u, rtp_header.reference_frame_id); | |
58 } | |
59 | |
60 virtual bool SendPackets(const PacketList& packets) OVERRIDE { | |
61 EXPECT_EQ(expected_number_of_packets_, static_cast<int>(packets.size())); | |
62 PacketList::const_iterator it = packets.begin(); | |
63 for (; it != packets.end(); ++it) { | |
64 ++packets_sent_; | |
65 RtpHeaderParser parser(it->data(), it->size()); | |
66 RtpCastTestHeader rtp_header; | |
67 parser.Parse(&rtp_header); | |
68 VerifyRtpHeader(rtp_header); | |
69 ++sequence_number_; | |
70 ++expected_packet_id_; | |
71 } | |
72 return true; | |
73 } | |
74 | |
75 virtual bool ResendPackets(const PacketList& packets) OVERRIDE { | |
76 EXPECT_TRUE(false); | |
77 return false; | |
78 } | |
79 | |
80 virtual bool SendRtcpPacket(const std::vector<uint8>& packet) OVERRIDE { | |
81 EXPECT_TRUE(false); | |
82 return false; | |
83 } | |
84 | |
85 void SetExpectedNumberOfPackets(int num) { | |
86 expected_number_of_packets_ = num; | |
87 } | |
88 | |
89 RtpPacketizerConfig config_; | |
90 uint32 sequence_number_; | |
91 int packets_sent_; | |
92 int expected_number_of_packets_; | |
93 // Assuming packets arrive in sequence. | |
94 int expected_packet_id_; | |
95 uint32 expected_frame_id_; | |
96 }; | |
97 | |
98 class RtpPacketizerTest : public ::testing::Test { | |
99 protected: | |
100 RtpPacketizerTest() | |
101 :video_frame_(), | |
102 packet_storage_(&testing_clock_, kMaxPacketStorageTimeMs) { | |
103 config_.sequence_number = kSeqNum; | |
104 config_.ssrc = kSsrc; | |
105 config_.payload_type = kPayload; | |
106 config_.max_payload_length = kMaxPacketLength; | |
107 transport_.reset(new TestRtpPacketTransport(config_)); | |
108 rtp_packetizer_.reset( | |
109 new RtpPacketizer(transport_.get(), &packet_storage_, config_)); | |
110 } | |
111 | |
112 virtual ~RtpPacketizerTest() {} | |
113 | |
114 virtual void SetUp() { | |
115 video_frame_.key_frame = false; | |
116 video_frame_.frame_id = 0; | |
117 video_frame_.last_referenced_frame_id = kStartFrameId; | |
118 video_frame_.data.assign(kFrameSize, 123); | |
119 } | |
120 | |
121 base::SimpleTestTickClock testing_clock_; | |
122 scoped_ptr<RtpPacketizer> rtp_packetizer_; | |
123 RtpPacketizerConfig config_; | |
124 scoped_ptr<TestRtpPacketTransport> transport_; | |
125 EncodedVideoFrame video_frame_; | |
126 PacketStorage packet_storage_; | |
127 }; | |
128 | |
129 TEST_F(RtpPacketizerTest, SendStandardPackets) { | |
130 int expected_num_of_packets = kFrameSize / kMaxPacketLength + 1; | |
131 transport_->SetExpectedNumberOfPackets(expected_num_of_packets); | |
132 | |
133 base::TimeTicks time; | |
134 time += base::TimeDelta::FromMilliseconds(kTimestampMs); | |
135 rtp_packetizer_->IncomingEncodedVideoFrame(&video_frame_, time); | |
136 } | |
137 | |
138 TEST_F(RtpPacketizerTest, Stats) { | |
139 EXPECT_FALSE(rtp_packetizer_->send_packets_count()); | |
140 EXPECT_FALSE(rtp_packetizer_->send_octet_count()); | |
141 // Insert packets at varying lengths. | |
142 int expected_num_of_packets = kFrameSize / kMaxPacketLength + 1; | |
143 transport_->SetExpectedNumberOfPackets(expected_num_of_packets); | |
144 | |
145 testing_clock_.Advance(base::TimeDelta::FromMilliseconds(kTimestampMs)); | |
146 rtp_packetizer_->IncomingEncodedVideoFrame(&video_frame_, | |
147 testing_clock_.NowTicks()); | |
148 EXPECT_EQ(expected_num_of_packets, rtp_packetizer_->send_packets_count()); | |
149 EXPECT_EQ(kFrameSize, rtp_packetizer_->send_octet_count()); | |
150 } | |
151 | |
152 } // namespace cast | |
153 } // namespace media | |
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