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| 1 /* | |
| 2 * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license | |
| 5 * that can be found in the LICENSE file in the root of the source | |
| 6 * tree. An additional intellectual property rights grant can be found | |
| 7 * in the file PATENTS. All contributing project authors may | |
| 8 * be found in the AUTHORS file in the root of the source tree. | |
| 9 */ | |
| 10 | |
| 11 #include "webrtc/modules/rtp_rtcp/source/rtcp_packet/rpsi.h" | |
| 12 | |
| 13 #include "webrtc/test/gmock.h" | |
| 14 #include "webrtc/test/gtest.h" | |
| 15 #include "webrtc/test/rtcp_packet_parser.h" | |
| 16 | |
| 17 using testing::ElementsAreArray; | |
| 18 using testing::make_tuple; | |
| 19 using webrtc::rtcp::Rpsi; | |
| 20 | |
| 21 namespace webrtc { | |
| 22 namespace { | |
| 23 const uint32_t kSenderSsrc = 0x12345678; | |
| 24 const uint32_t kRemoteSsrc = 0x23456789; | |
| 25 // 10000|01 100001|0 1000011 (7 bits = 1 byte in native string). | |
| 26 const uint64_t kPictureId = 0x106143; | |
| 27 const uint8_t kPayloadType = 100; | |
| 28 // Manually created Rpsi packet matching constants above. | |
| 29 const uint8_t kPacket[] = {0x83, 206, 0x00, 0x04, | |
| 30 0x12, 0x34, 0x56, 0x78, | |
| 31 0x23, 0x45, 0x67, 0x89, | |
| 32 24, 100, 0xc1, 0xc2, | |
| 33 0x43, 0, 0, 0}; | |
| 34 } // namespace | |
| 35 | |
| 36 TEST(RtcpPacketRpsiTest, Parse) { | |
| 37 Rpsi mutable_parsed; | |
| 38 EXPECT_TRUE(test::ParseSinglePacket(kPacket, &mutable_parsed)); | |
| 39 const Rpsi& parsed = mutable_parsed; // Read values from constant object. | |
| 40 | |
| 41 EXPECT_EQ(kSenderSsrc, parsed.sender_ssrc()); | |
| 42 EXPECT_EQ(kRemoteSsrc, parsed.media_ssrc()); | |
| 43 EXPECT_EQ(kPayloadType, parsed.payload_type()); | |
| 44 EXPECT_EQ(kPictureId, parsed.picture_id()); | |
| 45 } | |
| 46 | |
| 47 TEST(RtcpPacketRpsiTest, Create) { | |
| 48 Rpsi rpsi; | |
| 49 rpsi.SetSenderSsrc(kSenderSsrc); | |
| 50 rpsi.SetMediaSsrc(kRemoteSsrc); | |
| 51 rpsi.SetPayloadType(kPayloadType); | |
| 52 rpsi.SetPictureId(kPictureId); | |
| 53 | |
| 54 rtc::Buffer packet = rpsi.Build(); | |
| 55 | |
| 56 EXPECT_THAT(make_tuple(packet.data(), packet.size()), | |
| 57 ElementsAreArray(kPacket)); | |
| 58 } | |
| 59 | |
| 60 TEST(RtcpPacketRpsiTest, ParseFailsOnTooSmallPacket) { | |
| 61 Rpsi rpsi; | |
| 62 rpsi.SetSenderSsrc(kSenderSsrc); | |
| 63 rpsi.SetMediaSsrc(kRemoteSsrc); | |
| 64 | |
| 65 rtc::Buffer packet = rpsi.Build(); | |
| 66 packet[3]--; // Reduce size field by one word (4 bytes). | |
| 67 packet.SetSize(packet.size() - 4); | |
| 68 | |
| 69 EXPECT_FALSE(test::ParseSinglePacket(packet, &rpsi)); | |
| 70 } | |
| 71 | |
| 72 TEST(RtcpPacketRpsiTest, ParseFailsOnFractionalPaddingBytes) { | |
| 73 Rpsi rpsi; | |
| 74 rpsi.SetSenderSsrc(kSenderSsrc); | |
| 75 rpsi.SetMediaSsrc(kRemoteSsrc); | |
| 76 rpsi.SetPictureId(kPictureId); | |
| 77 rtc::Buffer packet = rpsi.Build(); | |
| 78 uint8_t* padding_bits = packet.data() + 12; | |
| 79 uint8_t saved_padding_bits = *padding_bits; | |
| 80 ASSERT_TRUE(test::ParseSinglePacket(packet, &rpsi)); | |
| 81 | |
| 82 for (uint8_t i = 1; i < 8; ++i) { | |
| 83 *padding_bits = saved_padding_bits + i; | |
| 84 EXPECT_FALSE(test::ParseSinglePacket(packet, &rpsi)); | |
| 85 } | |
| 86 } | |
| 87 | |
| 88 TEST(RtcpPacketRpsiTest, ParseFailsOnTooBigPadding) { | |
| 89 Rpsi rpsi; | |
| 90 rpsi.SetSenderSsrc(kSenderSsrc); | |
| 91 rpsi.SetMediaSsrc(kRemoteSsrc); | |
| 92 rpsi.SetPictureId(1); // Small picture id that occupy just 1 byte. | |
| 93 rtc::Buffer packet = rpsi.Build(); | |
| 94 uint8_t* padding_bits = packet.data() + 12; | |
| 95 ASSERT_TRUE(test::ParseSinglePacket(packet, &rpsi)); | |
| 96 | |
| 97 *padding_bits += 8; | |
| 98 EXPECT_FALSE(test::ParseSinglePacket(packet, &rpsi)); | |
| 99 } | |
| 100 | |
| 101 // For raw rpsi packet extract how many bytes are used to store picture_id. | |
| 102 size_t UsedBytes(const rtc::Buffer& packet) { // Works for small packets only. | |
| 103 RTC_CHECK_EQ(packet.data()[2], 0); // Assume packet is small. | |
| 104 size_t total_rpsi_payload_bytes = 4 * (packet.data()[3] - 2) - 2; | |
| 105 uint8_t padding_bits = packet.data()[12]; | |
| 106 RTC_CHECK_EQ(padding_bits % 8, 0); | |
| 107 return total_rpsi_payload_bytes - (padding_bits / 8); | |
| 108 } | |
| 109 | |
| 110 TEST(RtcpPacketRpsiTest, WithOneByteNativeString) { | |
| 111 Rpsi rpsi; | |
| 112 // 1000001 (7 bits = 1 byte in native string). | |
| 113 const uint64_t kPictureId = 0x41; | |
| 114 const uint16_t kNumberOfValidBytes = 1; | |
| 115 rpsi.SetPictureId(kPictureId); | |
| 116 | |
| 117 rtc::Buffer packet = rpsi.Build(); | |
| 118 EXPECT_EQ(kNumberOfValidBytes, UsedBytes(packet)); | |
| 119 | |
| 120 Rpsi parsed; | |
| 121 EXPECT_TRUE(test::ParseSinglePacket(packet, &parsed)); | |
| 122 EXPECT_EQ(kPictureId, parsed.picture_id()); | |
| 123 } | |
| 124 | |
| 125 TEST(RtcpPacketRpsiTest, WithTwoByteNativeString) { | |
| 126 Rpsi rpsi; | |
| 127 // |1 0000001 (7 bits = 1 byte in native string). | |
| 128 const uint64_t kPictureId = 0x81; | |
| 129 const uint16_t kNumberOfValidBytes = 2; | |
| 130 rpsi.SetPictureId(kPictureId); | |
| 131 | |
| 132 rtc::Buffer packet = rpsi.Build(); | |
| 133 EXPECT_EQ(kNumberOfValidBytes, UsedBytes(packet)); | |
| 134 | |
| 135 Rpsi parsed; | |
| 136 EXPECT_TRUE(test::ParseSinglePacket(packet, &parsed)); | |
| 137 EXPECT_EQ(kPictureId, parsed.picture_id()); | |
| 138 } | |
| 139 | |
| 140 TEST(RtcpPacketRpsiTest, WithThreeByteNativeString) { | |
| 141 Rpsi rpsi; | |
| 142 // 10000|00 100000|0 1000000 (7 bits = 1 byte in native string). | |
| 143 const uint64_t kPictureId = 0x102040; | |
| 144 const uint16_t kNumberOfValidBytes = 3; | |
| 145 rpsi.SetPictureId(kPictureId); | |
| 146 | |
| 147 rtc::Buffer packet = rpsi.Build(); | |
| 148 EXPECT_EQ(kNumberOfValidBytes, UsedBytes(packet)); | |
| 149 | |
| 150 Rpsi parsed; | |
| 151 EXPECT_TRUE(test::ParseSinglePacket(packet, &parsed)); | |
| 152 EXPECT_EQ(kPictureId, parsed.picture_id()); | |
| 153 } | |
| 154 | |
| 155 TEST(RtcpPacketRpsiTest, WithFourByteNativeString) { | |
| 156 Rpsi rpsi; | |
| 157 // 1000|001 00001|01 100001|1 1000010 (7 bits = 1 byte in native string). | |
| 158 const uint64_t kPictureId = 0x84161C2; | |
| 159 const uint16_t kNumberOfValidBytes = 4; | |
| 160 rpsi.SetPictureId(kPictureId); | |
| 161 | |
| 162 rtc::Buffer packet = rpsi.Build(); | |
| 163 EXPECT_EQ(kNumberOfValidBytes, UsedBytes(packet)); | |
| 164 | |
| 165 Rpsi parsed; | |
| 166 EXPECT_TRUE(test::ParseSinglePacket(packet, &parsed)); | |
| 167 EXPECT_EQ(kPictureId, parsed.picture_id()); | |
| 168 } | |
| 169 | |
| 170 TEST(RtcpPacketRpsiTest, WithMaxPictureId) { | |
| 171 Rpsi rpsi; | |
| 172 // 1 1111111| 1111111 1|111111 11|11111 111|1111 1111|111 11111| | |
| 173 // 11 111111|1 1111111 (7 bits = 1 byte in native string). | |
| 174 const uint64_t kPictureId = 0xffffffffffffffff; | |
| 175 const uint16_t kNumberOfValidBytes = 10; | |
| 176 rpsi.SetPictureId(kPictureId); | |
| 177 | |
| 178 rtc::Buffer packet = rpsi.Build(); | |
| 179 EXPECT_EQ(kNumberOfValidBytes, UsedBytes(packet)); | |
| 180 | |
| 181 Rpsi parsed; | |
| 182 EXPECT_TRUE(test::ParseSinglePacket(packet, &parsed)); | |
| 183 EXPECT_EQ(kPictureId, parsed.picture_id()); | |
| 184 } | |
| 185 } // namespace webrtc | |
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Chromium Code Reviews
Issue 2742383004:
Delete support for receiving RTCP RPSI and SLI messages. (Closed)
