Style updates to ProducerFec/FecReceiver.

webrtc/modules/rtp_rtcp/source/producer_fec_unittest.cc

 /*
  *  Copyright (c) 2012 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.
  */
 
 #include <list>
 #include <memory>
 #include <vector>
 
 #include "testing/gtest/include/gtest/gtest.h"
 #include "webrtc/modules/rtp_rtcp/source/byte_io.h"
 #include "webrtc/modules/rtp_rtcp/source/fec_test_helper.h"
 #include "webrtc/modules/rtp_rtcp/source/forward_error_correction.h"
 #include "webrtc/modules/rtp_rtcp/source/producer_fec.h"
 
 namespace webrtc {
 
 void VerifyHeader(uint16_t seq_num,
                   uint32_t timestamp,
-                  int red_pltype,
-                  int fec_pltype,
+                  int red_payload_type,
+                  int fec_payload_type,
                   RedPacket* packet,
                   bool marker_bit) {
   EXPECT_GT(packet->length(), kRtpHeaderSize);
   EXPECT_TRUE(packet->data() != NULL);
   uint8_t* data = packet->data();
   // Marker bit not set.
   EXPECT_EQ(marker_bit ? 0x80 : 0, data[1] & 0x80);
-  EXPECT_EQ(red_pltype, data[1] & 0x7F);
+  EXPECT_EQ(red_payload_type, data[1] & 0x7F);
   EXPECT_EQ(seq_num, (data[2] << 8) + data[3]);
   uint32_t parsed_timestamp = (data[4] << 24) + (data[5] << 16) +
       (data[6] << 8) + data[7];
   EXPECT_EQ(timestamp, parsed_timestamp);
-  EXPECT_EQ(static_cast<uint8_t>(fec_pltype), data[kRtpHeaderSize]);
+  EXPECT_EQ(static_cast<uint8_t>(fec_payload_type), data[kRtpHeaderSize]);
 }
 
 class ProducerFecTest : public ::testing::Test {
  protected:
-  virtual void SetUp() {
-    fec_ = new ForwardErrorCorrection();
-    producer_ = new ProducerFec(fec_);
-    generator_ = new FrameGenerator();
-  }
+  ProducerFecTest() : producer_(&fec_) {}
 
-  virtual void TearDown() {
-    delete producer_;
-    delete fec_;
-    delete generator_;
-  }
-  ForwardErrorCorrection* fec_;
-  ProducerFec* producer_;
-  FrameGenerator* generator_;
+  ForwardErrorCorrection fec_;
+  ProducerFec producer_;
+  FrameGenerator generator_;
 };
 
 // Verifies bug found via fuzzing, where a gap in the packet sequence caused us
 // to move past the end of the current FEC packet mask byte without moving to
 // the next byte. That likely caused us to repeatedly read from the same byte,
 // and if that byte didn't protect packets we would generate empty FEC.
 TEST_F(ProducerFecTest, NoEmptyFecWithSeqNumGaps) {
   struct Packet {
     size_t header_size;
     size_t payload_size;
     uint16_t seq_num;
     bool marker_bit;
   };
   std::vector<Packet> protected_packets;
   protected_packets.push_back({15, 3, 41, 0});
   protected_packets.push_back({14, 1, 43, 0});
   protected_packets.push_back({19, 0, 48, 0});
   protected_packets.push_back({19, 0, 50, 0});
   protected_packets.push_back({14, 3, 51, 0});
   protected_packets.push_back({13, 8, 52, 0});
   protected_packets.push_back({19, 2, 53, 0});
   protected_packets.push_back({12, 3, 54, 0});
   protected_packets.push_back({21, 0, 55, 0});
   protected_packets.push_back({13, 3, 57, 1});
   FecProtectionParams params = {117, 3, kFecMaskBursty};
-  producer_->SetFecParameters(&params, 0);
+  producer_.SetFecParameters(&params, 0);
   uint8_t packet[28] = {0};
   for (Packet p : protected_packets) {
     if (p.marker_bit) {
       packet[1] |= 0x80;
     } else {
       packet[1] &= ~0x80;
     }
     ByteWriter<uint16_t>::WriteBigEndian(&packet[2], p.seq_num);
-    producer_->AddRtpPacketAndGenerateFec(packet, p.payload_size,
-                                          p.header_size);
-    uint16_t num_fec_packets = producer_->NumAvailableFecPackets();
-    std::vector<RedPacket*> fec_packets;
+    producer_.AddRtpPacketAndGenerateFec(packet, p.payload_size, p.header_size);
+    uint16_t num_fec_packets = producer_.NumAvailableFecPackets();
     if (num_fec_packets > 0) {
-      fec_packets =
-          producer_->GetFecPackets(kRedPayloadType, 99, 100, p.header_size);
+      std::vector<std::unique_ptr<RedPacket>> fec_packets =
+          producer_.GetFecPacketsAsRed(kRedPayloadType, kFecPayloadType, 100,
+                                       p.header_size);
       EXPECT_EQ(num_fec_packets, fec_packets.size());
     }
-    for (RedPacket* fec_packet : fec_packets) {
-      delete fec_packet;
-    }
   }
 }
 
 TEST_F(ProducerFecTest, OneFrameFec) {
   // The number of media packets (|kNumPackets|), number of frames (one for
   // this test), and the protection factor (|params->fec_rate|) are set to make
   // sure the conditions for generating FEC are satisfied. This means:
   // (1) protection factor is high enough so that actual overhead over 1 frame
   // of packets is within |kMaxExcessOverhead|, and (2) the total number of
   // media packets for 1 frame is at least |minimum_media_packets_fec_|.
   const int kNumPackets = 4;
   FecProtectionParams params = {15, 3, kFecMaskRandom};
   std::list<test::RawRtpPacket*> rtp_packets;
-  generator_->NewFrame(kNumPackets);
-  producer_->SetFecParameters(&params, 0);  // Expecting one FEC packet.
+  generator_.NewFrame(kNumPackets);
+  producer_.SetFecParameters(&params, 0);  // Expecting one FEC packet.
   uint32_t last_timestamp = 0;
   for (int i = 0; i < kNumPackets; ++i) {
-    test::RawRtpPacket* rtp_packet = generator_->NextPacket(i, 10);
+    test::RawRtpPacket* rtp_packet = generator_.NextPacket(i, 10);
     rtp_packets.push_back(rtp_packet);
-    EXPECT_EQ(0, producer_->AddRtpPacketAndGenerateFec(rtp_packet->data,
-                                                       rtp_packet->length,
-                                                       kRtpHeaderSize));
+    EXPECT_EQ(0, producer_.AddRtpPacketAndGenerateFec(
+                     rtp_packet->data, rtp_packet->length, kRtpHeaderSize));
     last_timestamp = rtp_packet->header.header.timestamp;
   }
-  EXPECT_TRUE(producer_->FecAvailable());
-  uint16_t seq_num = generator_->NextSeqNum();
-  std::vector<RedPacket*> packets = producer_->GetFecPackets(kRedPayloadType,
-                                                             kFecPayloadType,
-                                                             seq_num,
-                                                             kRtpHeaderSize);
-  EXPECT_FALSE(producer_->FecAvailable());
+  EXPECT_TRUE(producer_.FecAvailable());
+  uint16_t seq_num = generator_.NextSeqNum();
+  std::vector<std::unique_ptr<RedPacket>> packets =
+      producer_.GetFecPacketsAsRed(kRedPayloadType, kFecPayloadType, seq_num,
+                                   kRtpHeaderSize);
+  EXPECT_FALSE(producer_.FecAvailable());
   ASSERT_EQ(1u, packets.size());
-  VerifyHeader(seq_num, last_timestamp,
-               kRedPayloadType, kFecPayloadType, packets.front(), false);
+  VerifyHeader(seq_num, last_timestamp, kRedPayloadType, kFecPayloadType,
+               packets.front().get(), false);
   while (!rtp_packets.empty()) {
     delete rtp_packets.front();
     rtp_packets.pop_front();
   }
-  delete packets.front();
 }
 
 TEST_F(ProducerFecTest, TwoFrameFec) {
   // The number of media packets/frame (|kNumPackets|), the number of frames
   // (|kNumFrames|), and the protection factor (|params->fec_rate|) are set to
   // make sure the conditions for generating FEC are satisfied. This means:
   // (1) protection factor is high enough so that actual overhead over
   // |kNumFrames| is within |kMaxExcessOverhead|, and (2) the total number of
   // media packets for |kNumFrames| frames is at least
   // |minimum_media_packets_fec_|.
   const int kNumPackets = 2;
   const int kNumFrames = 2;
 
   FecProtectionParams params = {15, 3, kFecMaskRandom};
   std::list<test::RawRtpPacket*> rtp_packets;
-  producer_->SetFecParameters(&params, 0);  // Expecting one FEC packet.
+  producer_.SetFecParameters(&params, 0);  // Expecting one FEC packet.
   uint32_t last_timestamp = 0;
   for (int i = 0; i < kNumFrames; ++i) {
-    generator_->NewFrame(kNumPackets);
+    generator_.NewFrame(kNumPackets);
     for (int j = 0; j < kNumPackets; ++j) {
       test::RawRtpPacket* rtp_packet =
-          generator_->NextPacket(i * kNumPackets + j, 10);
+          generator_.NextPacket(i * kNumPackets + j, 10);
       rtp_packets.push_back(rtp_packet);
-      EXPECT_EQ(0, producer_->AddRtpPacketAndGenerateFec(rtp_packet->data,
-                                           rtp_packet->length,
-                                           kRtpHeaderSize));
+      EXPECT_EQ(0, producer_.AddRtpPacketAndGenerateFec(
+                       rtp_packet->data, rtp_packet->length, kRtpHeaderSize));
       last_timestamp = rtp_packet->header.header.timestamp;
     }
   }
-  EXPECT_TRUE(producer_->FecAvailable());
-  uint16_t seq_num = generator_->NextSeqNum();
-  std::vector<RedPacket*> packets = producer_->GetFecPackets(kRedPayloadType,
-                                                             kFecPayloadType,
-                                                             seq_num,
-                                                             kRtpHeaderSize);
-  EXPECT_FALSE(producer_->FecAvailable());
+  EXPECT_TRUE(producer_.FecAvailable());
+  uint16_t seq_num = generator_.NextSeqNum();
+  std::vector<std::unique_ptr<RedPacket>> packets =
+      producer_.GetFecPacketsAsRed(kRedPayloadType, kFecPayloadType, seq_num,
+                                   kRtpHeaderSize);
+  EXPECT_FALSE(producer_.FecAvailable());
   ASSERT_EQ(1u, packets.size());
   VerifyHeader(seq_num, last_timestamp, kRedPayloadType, kFecPayloadType,
-               packets.front(), false);
+               packets.front().get(), false);
   while (!rtp_packets.empty()) {
     delete rtp_packets.front();
     rtp_packets.pop_front();
   }
-  delete packets.front();
 }
 
 TEST_F(ProducerFecTest, BuildRedPacket) {
-  generator_->NewFrame(1);
-  test::RawRtpPacket* packet = generator_->NextPacket(0, 10);
-  std::unique_ptr<RedPacket> red_packet(producer_->BuildRedPacket(
-      packet->data, packet->length - kRtpHeaderSize, kRtpHeaderSize,
-      kRedPayloadType));
+  generator_.NewFrame(1);
+  test::RawRtpPacket* packet = generator_.NextPacket(0, 10);
+  std::unique_ptr<RedPacket> red_packet =
+      ProducerFec::BuildRedPacket(packet->data, packet->length - kRtpHeaderSize,
+                                  kRtpHeaderSize, kRedPayloadType);
   EXPECT_EQ(packet->length + 1, red_packet->length());
   VerifyHeader(packet->header.header.sequenceNumber,
                packet->header.header.timestamp,
                kRedPayloadType,
                packet->header.header.payloadType,
                red_packet.get(),
                true);  // Marker bit set.
   for (int i = 0; i < 10; ++i)
     EXPECT_EQ(i, red_packet->data()[kRtpHeaderSize + 1 + i]);
   delete packet;
 }
 
 }  // namespace webrtc