text: /*
   *  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_FEC_RECEIVER_IMPL_H_
  #define WEBRTC_MODULES_RTP_RTCP_SOURCE_FEC_RECEIVER_IMPL_H_
  
  // This header is included to get the nested declaration of Packet structure.
  
  #include "webrtc/base/scoped_ptr.h"
  #include "webrtc/modules/rtp_rtcp/include/fec_receiver.h"
  #include "webrtc/modules/rtp_rtcp/include/rtp_rtcp_defines.h"
  #include "webrtc/modules/rtp_rtcp/source/forward_error_correction.h"
  #include "webrtc/typedefs.h"
  
  namespace webrtc {
  
  class CriticalSectionWrapper;
  
  class FecReceiverImpl : public FecReceiver {
   public:
    FecReceiverImpl(RtpData* callback);
    virtual ~FecReceiverImpl();
  
    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::scoped_ptr<CriticalSectionWrapper> crit_sect_;
    RtpData* recovered_packet_callback_;
    ForwardErrorCorrection* fec_;
    // TODO(holmer): In the current version received_packet_list_ is never more
    // than one packet, since we process FEC every time a new packet
    // arrives. We should remove the list.
    ForwardErrorCorrection::ReceivedPacketList received_packet_list_;
    ForwardErrorCorrection::RecoveredPacketList recovered_packet_list_;
    FecPacketCounter packet_counter_;
  };
  }  // namespace webrtc
  
  #endif  // WEBRTC_MODULES_RTP_RTCP_SOURCE_FEC_RECEIVER_IMPL_H_
  