Rename FecReceiver to UlpfecReceiver.

BUG=webrtc:5654

Review-Url: https://codereview.webrtc.org/2451643002
Cr-Commit-Position: refs/heads/master@{#14846}

webrtc/modules/rtp_rtcp/source/ulpfec_receiver_impl.h

@@ -0,0 +1,52 @@
+/*
+ *  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.
+ */
+
+#ifndef WEBRTC_MODULES_RTP_RTCP_SOURCE_ULPFEC_RECEIVER_IMPL_H_
+#define WEBRTC_MODULES_RTP_RTCP_SOURCE_ULPFEC_RECEIVER_IMPL_H_
+
+#include <memory>
+
+#include "webrtc/base/criticalsection.h"
+#include "webrtc/modules/rtp_rtcp/include/rtp_rtcp_defines.h"
+#include "webrtc/modules/rtp_rtcp/include/ulpfec_receiver.h"
+#include "webrtc/modules/rtp_rtcp/source/forward_error_correction.h"
+#include "webrtc/typedefs.h"
+
+namespace webrtc {
+
+class UlpfecReceiverImpl : public UlpfecReceiver {
+ public:
+  explicit UlpfecReceiverImpl(RtpData* callback);
+  virtual ~UlpfecReceiverImpl();
+
+  int32_t AddReceivedRedPacket(const RTPHeader& rtp_header,
+                               const uint8_t* incoming_rtp_packet,
+                               size_t packet_length,
+                               uint8_t ulpfec_payload_type) override;
+
+  int32_t ProcessReceivedFec() override;
+
+  FecPacketCounter GetPacketCounter() const override;
+
+ private:
+  rtc::CriticalSection crit_sect_;
+  RtpData* recovered_packet_callback_;
+  std::unique_ptr<ForwardErrorCorrection> fec_;
+  // TODO(holmer): In the current version |received_packets_| is never more
+  // than one packet, since we process FEC every time a new packet
+  // arrives. We should remove the list.
+  ForwardErrorCorrection::ReceivedPacketList received_packets_;
+  ForwardErrorCorrection::RecoveredPacketList recovered_packets_;
+  FecPacketCounter packet_counter_;
+};
+
+}  // namespace webrtc
+
+#endif  // WEBRTC_MODULES_RTP_RTCP_SOURCE_ULPFEC_RECEIVER_IMPL_H_