src/third_party/libjingle/source/talk/media/base/rtputils_unittest.cc

   1 /*
   2  * libjingle
   3  * Copyright 2004 Google Inc.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions are met:
   7  *
   8  *  1. Redistributions of source code must retain the above copyright notice,
   9  *     this list of conditions and the following disclaimer.
  10  *  2. Redistributions in binary form must reproduce the above copyright notice,
  11  *     this list of conditions and the following disclaimer in the documentation
  12  *     and/or other materials provided with the distribution.
  13  *  3. The name of the author may not be used to endorse or promote products
  14  *     derived from this software without specific prior written permission.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
  17  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  18  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
  19  * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  20  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  22  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  23  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  24  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  25  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26  */
  27
  28 #include "talk/media/base/fakertp.h"
  29 #include "talk/media/base/rtputils.h"
  30 #include "webrtc/base/gunit.h"
  31
  32 namespace cricket {
  33
  34 static const unsigned char kRtpPacketWithMarker[] = {
  35     0x80, 0x80, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01
  36 };
  37 // 3 CSRCs (0x01020304, 0x12345678, 0xAABBCCDD)
  38 // Extension (0xBEDE, 0x1122334455667788)
  39 static const unsigned char kRtpPacketWithMarkerAndCsrcAndExtension[] = {
  40     0x93, 0x80, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
  41     0x01, 0x02, 0x03, 0x04, 0x12, 0x34, 0x56, 0x78, 0xAA, 0xBB, 0xCC, 0xDD,
  42     0xBE, 0xDE, 0x00, 0x02, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88
  43 };
  44 static const unsigned char kInvalidPacket[] = { 0x80, 0x00 };
  45 static const unsigned char kInvalidPacketWithCsrc[] = {
  46     0x83, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
  47     0x01, 0x02, 0x03, 0x04, 0x12, 0x34, 0x56, 0x78, 0xAA, 0xBB, 0xCC
  48 };
  49 static const unsigned char kInvalidPacketWithCsrcAndExtension1[] = {
  50     0x93, 0x80, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
  51     0x01, 0x02, 0x03, 0x04, 0x12, 0x34, 0x56, 0x78, 0xAA, 0xBB, 0xCC, 0xDD,
  52     0xBE, 0xDE, 0x00
  53 };
  54 static const unsigned char kInvalidPacketWithCsrcAndExtension2[] = {
  55     0x93, 0x80, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
  56     0x01, 0x02, 0x03, 0x04, 0x12, 0x34, 0x56, 0x78, 0xAA, 0xBB, 0xCC, 0xDD,
  57     0xBE, 0xDE, 0x00, 0x02, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77
  58 };
  59
  60 // PT = 206, FMT = 1, Sender SSRC  = 0x1111, Media SSRC = 0x1111
  61 // No FCI information is needed for PLI.
  62 static const unsigned char kNonCompoundRtcpPliFeedbackPacket[] = {
  63     0x81, 0xCE, 0x00, 0x0C, 0x00, 0x00, 0x11, 0x11, 0x00, 0x00, 0x11, 0x11
  64 };
  65
  66 // Packet has only mandatory fixed RTCP header
  67 // PT = 204, SSRC = 0x1111
  68 static const unsigned char kNonCompoundRtcpAppPacket[] = {
  69     0x81, 0xCC, 0x00, 0x0C, 0x00, 0x00, 0x11, 0x11
  70 };
  71
  72 // PT = 202, Source count = 0
  73 static const unsigned char kNonCompoundRtcpSDESPacket[] = {
  74     0x80, 0xCA, 0x00, 0x00
  75 };
  76
  77 TEST(RtpUtilsTest, GetRtp) {
  78   int ver;
  79   EXPECT_TRUE(GetRtpVersion(kPcmuFrame, sizeof(kPcmuFrame), &ver));
  80   EXPECT_EQ(2, ver);
  81
  82   int pt;
  83   EXPECT_TRUE(GetRtpPayloadType(kPcmuFrame, sizeof(kPcmuFrame), &pt));
  84   EXPECT_EQ(0, pt);
  85   EXPECT_TRUE(GetRtpPayloadType(kRtpPacketWithMarker,
  86                                 sizeof(kRtpPacketWithMarker), &pt));
  87   EXPECT_EQ(0, pt);
  88
  89   int seq_num;
  90   EXPECT_TRUE(GetRtpSeqNum(kPcmuFrame, sizeof(kPcmuFrame), &seq_num));
  91   EXPECT_EQ(1, seq_num);
  92
  93   uint32 ts;
  94   EXPECT_TRUE(GetRtpTimestamp(kPcmuFrame, sizeof(kPcmuFrame), &ts));
  95   EXPECT_EQ(0u, ts);
  96
  97   uint32 ssrc;
  98   EXPECT_TRUE(GetRtpSsrc(kPcmuFrame, sizeof(kPcmuFrame), &ssrc));
  99   EXPECT_EQ(1u, ssrc);
 100
 101   RtpHeader header;
 102   EXPECT_TRUE(GetRtpHeader(kPcmuFrame, sizeof(kPcmuFrame), &header));
 103   EXPECT_EQ(0, header.payload_type);
 104   EXPECT_EQ(1, header.seq_num);
 105   EXPECT_EQ(0u, header.timestamp);
 106   EXPECT_EQ(1u, header.ssrc);
 107
 108   EXPECT_FALSE(GetRtpPayloadType(kInvalidPacket, sizeof(kInvalidPacket), &pt));
 109   EXPECT_FALSE(GetRtpSeqNum(kInvalidPacket, sizeof(kInvalidPacket), &seq_num));
 110   EXPECT_FALSE(GetRtpTimestamp(kInvalidPacket, sizeof(kInvalidPacket), &ts));
 111   EXPECT_FALSE(GetRtpSsrc(kInvalidPacket, sizeof(kInvalidPacket), &ssrc));
 112 }
 113
 114 TEST(RtpUtilsTest, SetRtp) {
 115   unsigned char packet[] = {
 116     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
 117   };
 118
 119   EXPECT_TRUE(SetRtpHeaderFlags(packet, sizeof(packet), false, false, 0));
 120   EXPECT_TRUE(SetRtpPayloadType(packet, sizeof(packet), 9u));
 121   EXPECT_TRUE(SetRtpSeqNum(packet, sizeof(packet), 1111u));
 122   EXPECT_TRUE(SetRtpTimestamp(packet, sizeof(packet), 2222u));
 123   EXPECT_TRUE(SetRtpSsrc(packet, sizeof(packet), 3333u));
 124
 125   // Bits: 10 0 0 0000
 126   EXPECT_EQ(128u, packet[0]);
 127   size_t len;
 128   EXPECT_TRUE(GetRtpHeaderLen(packet, sizeof(packet), &len));
 129   EXPECT_EQ(12U, len);
 130   RtpHeader header;
 131   EXPECT_TRUE(GetRtpHeader(packet, sizeof(packet), &header));
 132   EXPECT_EQ(9, header.payload_type);
 133   EXPECT_EQ(1111, header.seq_num);
 134   EXPECT_EQ(2222u, header.timestamp);
 135   EXPECT_EQ(3333u, header.ssrc);
 136
 137   unsigned char packet2[] = {
 138     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
 139   };
 140
 141   EXPECT_TRUE(SetRtpHeader(packet2, sizeof(packet2), header));
 142
 143   // Bits: 10 0 0 0000
 144   EXPECT_EQ(128u, packet2[0]);
 145   EXPECT_TRUE(GetRtpHeaderLen(packet2, sizeof(packet2), &len));
 146   EXPECT_EQ(12U, len);
 147   EXPECT_TRUE(GetRtpHeader(packet2, sizeof(packet2), &header));
 148   EXPECT_EQ(9, header.payload_type);
 149   EXPECT_EQ(1111, header.seq_num);
 150   EXPECT_EQ(2222u, header.timestamp);
 151   EXPECT_EQ(3333u, header.ssrc);
 152 }
 153
 154 TEST(RtpUtilsTest, GetRtpHeaderLen) {
 155   size_t len;
 156   EXPECT_TRUE(GetRtpHeaderLen(kPcmuFrame, sizeof(kPcmuFrame), &len));
 157   EXPECT_EQ(12U, len);
 158
 159   EXPECT_TRUE(GetRtpHeaderLen(kRtpPacketWithMarkerAndCsrcAndExtension,
 160                               sizeof(kRtpPacketWithMarkerAndCsrcAndExtension),
 161                               &len));
 162   EXPECT_EQ(sizeof(kRtpPacketWithMarkerAndCsrcAndExtension), len);
 163
 164   EXPECT_FALSE(GetRtpHeaderLen(kInvalidPacket, sizeof(kInvalidPacket), &len));
 165   EXPECT_FALSE(GetRtpHeaderLen(kInvalidPacketWithCsrc,
 166                                sizeof(kInvalidPacketWithCsrc), &len));
 167   EXPECT_FALSE(GetRtpHeaderLen(kInvalidPacketWithCsrcAndExtension1,
 168                                sizeof(kInvalidPacketWithCsrcAndExtension1),
 169                                &len));
 170   EXPECT_FALSE(GetRtpHeaderLen(kInvalidPacketWithCsrcAndExtension2,
 171                                sizeof(kInvalidPacketWithCsrcAndExtension2),
 172                                &len));
 173 }
 174
 175 TEST(RtpUtilsTest, GetRtcp) {
 176   int pt;
 177   EXPECT_TRUE(GetRtcpType(kRtcpReport, sizeof(kRtcpReport), &pt));
 178   EXPECT_EQ(0xc9, pt);
 179
 180   EXPECT_FALSE(GetRtcpType(kInvalidPacket, sizeof(kInvalidPacket), &pt));
 181
 182   uint32 ssrc;
 183   EXPECT_TRUE(GetRtcpSsrc(kNonCompoundRtcpPliFeedbackPacket,
 184                           sizeof(kNonCompoundRtcpPliFeedbackPacket),
 185                           &ssrc));
 186   EXPECT_TRUE(GetRtcpSsrc(kNonCompoundRtcpAppPacket,
 187                           sizeof(kNonCompoundRtcpAppPacket),
 188                           &ssrc));
 189   EXPECT_FALSE(GetRtcpSsrc(kNonCompoundRtcpSDESPacket,
 190                            sizeof(kNonCompoundRtcpSDESPacket),
 191                            &ssrc));
 192 }
 193
 194 }  // namespace cricket