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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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