Wire up FlexfecSender in RTPSenderVideo.

webrtc/modules/rtp_rtcp/source/flexfec_sender_unittest.cc

 /*
  *  Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 14 matching lines @@
 
 using test::fec::AugmentedPacket;
 using test::fec::AugmentedPacketGenerator;
 
 constexpr int kFlexfecPayloadType = 123;
 constexpr uint32_t kMediaSsrc = 1234;
 constexpr uint32_t kFlexfecSsrc = 5678;
 const std::vector<RtpExtension> kNoRtpHeaderExtensions;
 // Assume a single protected media SSRC.
 constexpr size_t kFlexfecMaxHeaderSize = 32;
+constexpr size_t kRtpHeaderExtensionBaseHeaderSize = 4;
 constexpr size_t kPayloadLength = 50;
 
 constexpr int64_t kInitialSimulatedClockTime = 1;
 // These values are deterministically given by the PRNG, due to our fixed seed.
 // They should be updated if the PRNG implementation changes.
 constexpr uint16_t kDeterministicSequenceNumber = 28732;
 constexpr uint32_t kDeterministicTimestamp = 2305613085;
 
 std::unique_ptr<RtpPacketToSend> GenerateSingleFlexfecPacket(
     FlexfecSender* sender) {
@@ skipping 128 matching lines @@
     EXPECT_EQ(kFlexfecSsrc, fec_packet->Ssrc());
   }
 }
 
 // In the tests, we only consider RTP header extensions that are useful for BWE.
 TEST(FlexfecSenderTest, NoRtpHeaderExtensionsForBweByDefault) {
   const std::vector<RtpExtension> kRtpHeaderExtensions{};
   SimulatedClock clock(kInitialSimulatedClockTime);
   FlexfecSender sender(kFlexfecPayloadType, kFlexfecSsrc, kMediaSsrc,
                        kRtpHeaderExtensions, &clock);
+  EXPECT_EQ(kRtpHeaderSize, sender.RtpHeaderLength());
   auto fec_packet = GenerateSingleFlexfecPacket(&sender);
 
   EXPECT_FALSE(fec_packet->HasExtension<AbsoluteSendTime>());
   EXPECT_FALSE(fec_packet->HasExtension<TransmissionOffset>());
   EXPECT_FALSE(fec_packet->HasExtension<TransportSequenceNumber>());
 }
 
 TEST(FlexfecSenderTest, RegisterAbsoluteSendTimeRtpHeaderExtension) {
   const std::vector<RtpExtension> kRtpHeaderExtensions{
       {RtpExtension::kAbsSendTimeUri, 1}};
   SimulatedClock clock(kInitialSimulatedClockTime);
   FlexfecSender sender(kFlexfecPayloadType, kFlexfecSsrc, kMediaSsrc,
                        kRtpHeaderExtensions, &clock);
+  EXPECT_EQ(kRtpHeaderSize + kRtpHeaderExtensionBaseHeaderSize + 4U,
+            sender.RtpHeaderLength());
   auto fec_packet = GenerateSingleFlexfecPacket(&sender);
 
   EXPECT_TRUE(fec_packet->HasExtension<AbsoluteSendTime>());
   EXPECT_FALSE(fec_packet->HasExtension<TransmissionOffset>());
   EXPECT_FALSE(fec_packet->HasExtension<TransportSequenceNumber>());
 }
 
 TEST(FlexfecSenderTest, RegisterTransmissionOffsetRtpHeaderExtension) {
   const std::vector<RtpExtension> kRtpHeaderExtensions{
       {RtpExtension::kTimestampOffsetUri, 1}};
   SimulatedClock clock(kInitialSimulatedClockTime);
   FlexfecSender sender(kFlexfecPayloadType, kFlexfecSsrc, kMediaSsrc,
                        kRtpHeaderExtensions, &clock);
+  EXPECT_EQ(kRtpHeaderSize + kRtpHeaderExtensionBaseHeaderSize + 4U,
+            sender.RtpHeaderLength());
   auto fec_packet = GenerateSingleFlexfecPacket(&sender);
 
   EXPECT_FALSE(fec_packet->HasExtension<AbsoluteSendTime>());
   EXPECT_TRUE(fec_packet->HasExtension<TransmissionOffset>());
   EXPECT_FALSE(fec_packet->HasExtension<TransportSequenceNumber>());
 }
 
 TEST(FlexfecSenderTest, RegisterTransportSequenceNumberRtpHeaderExtension) {
   const std::vector<RtpExtension> kRtpHeaderExtensions{
       {RtpExtension::kTransportSequenceNumberUri, 1}};
   SimulatedClock clock(kInitialSimulatedClockTime);
   FlexfecSender sender(kFlexfecPayloadType, kFlexfecSsrc, kMediaSsrc,
                        kRtpHeaderExtensions, &clock);
+  EXPECT_EQ(kRtpHeaderSize + kRtpHeaderExtensionBaseHeaderSize + 4U,
+            sender.RtpHeaderLength());
   auto fec_packet = GenerateSingleFlexfecPacket(&sender);
 
   EXPECT_FALSE(fec_packet->HasExtension<AbsoluteSendTime>());
   EXPECT_FALSE(fec_packet->HasExtension<TransmissionOffset>());
   EXPECT_TRUE(fec_packet->HasExtension<TransportSequenceNumber>());
 }
 
 TEST(FlexfecSenderTest, RegisterAllRtpHeaderExtensionsForBwe) {
   const std::vector<RtpExtension> kRtpHeaderExtensions{
       {RtpExtension::kAbsSendTimeUri, 1},
       {RtpExtension::kTimestampOffsetUri, 2},
       {RtpExtension::kTransportSequenceNumberUri, 3}};
   SimulatedClock clock(kInitialSimulatedClockTime);
   FlexfecSender sender(kFlexfecPayloadType, kFlexfecSsrc, kMediaSsrc,
                        kRtpHeaderExtensions, &clock);
+  EXPECT_EQ(kRtpHeaderSize + kRtpHeaderExtensionBaseHeaderSize + 3 * 4U,
+            sender.RtpHeaderLength());
   auto fec_packet = GenerateSingleFlexfecPacket(&sender);
 
   EXPECT_TRUE(fec_packet->HasExtension<AbsoluteSendTime>());
   EXPECT_TRUE(fec_packet->HasExtension<TransmissionOffset>());
   EXPECT_TRUE(fec_packet->HasExtension<TransportSequenceNumber>());
 }
 
 TEST(FlexfecSenderTest, MaxPacketOverhead) {
   SimulatedClock clock(kInitialSimulatedClockTime);
   FlexfecSender sender(kFlexfecPayloadType, kFlexfecSsrc, kMediaSsrc,
                        kNoRtpHeaderExtensions, &clock);
 
   EXPECT_EQ(kFlexfecMaxHeaderSize, sender.MaxPacketOverhead());
 }
 
 }  // namespace webrtc