/*
 *  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_RTCP_RECEIVER_HELP_H_
#define WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_RECEIVER_HELP_H_

#include <list>

#include "webrtc/modules/rtp_rtcp/interface/rtp_rtcp_defines.h"  // RTCPReportBlock
#include "webrtc/modules/rtp_rtcp/source/rtcp_utility.h"
#include "webrtc/modules/rtp_rtcp/source/tmmbr_help.h"
#include "webrtc/system_wrappers/interface/constructor_magic.h"
#include "webrtc/system_wrappers/interface/scoped_ptr.h"
#include "webrtc/typedefs.h"

namespace webrtc {
namespace RTCPHelp
{

class RTCPPacketInformation
{
public:
    RTCPPacketInformation();
    ~RTCPPacketInformation();

    void AddVoIPMetric(const RTCPVoIPMetric*  metric);

    void AddApplicationData(const uint8_t* data,
                            const uint16_t size);

    void AddNACKPacket(const uint16_t packetID);
    void ResetNACKPacketIdArray();

    void AddReportInfo(const uint8_t fractionLost,
                       const uint16_t rtt,
                       const uint32_t extendedHighSeqNum,
                       const uint32_t jitter);

    uint32_t  rtcpPacketTypeFlags; // RTCPPacketTypeFlags bit field
    uint32_t  remoteSSRC;

    std::list<uint16_t> nackSequenceNumbers;

    uint8_t   applicationSubType;
    uint32_t  applicationName;
    uint8_t*  applicationData;
    uint16_t  applicationLength;

    bool            reportBlock;
    uint8_t   fractionLost;
    uint16_t  roundTripTime;
    uint32_t  lastReceivedExtendedHighSeqNum;
    uint32_t  jitter;

    uint32_t  interArrivalJitter;

    uint8_t   sliPictureId;
    uint64_t  rpsiPictureId;
    uint32_t  receiverEstimatedMaxBitrate;

    uint32_t ntp_secs;
    uint32_t ntp_frac;
    uint32_t rtp_timestamp;

    RTCPVoIPMetric*  VoIPMetric;

private:
    DISALLOW_COPY_AND_ASSIGN(RTCPPacketInformation);
};


class RTCPReportBlockInformation
{
public:
    RTCPReportBlockInformation();
    ~RTCPReportBlockInformation();

    // Statistics
    RTCPReportBlock remoteReceiveBlock;
    uint32_t        remoteMaxJitter;

    // RTT
    uint16_t    RTT;
    uint16_t    minRTT;
    uint16_t    maxRTT;
    uint16_t    avgRTT;
    uint32_t    numAverageCalcs;
};

class RTCPReceiveInformation
{
public:
    RTCPReceiveInformation();
    ~RTCPReceiveInformation();

    void VerifyAndAllocateBoundingSet(const uint32_t minimumSize);
    void VerifyAndAllocateTMMBRSet(const uint32_t minimumSize);

    void InsertTMMBRItem(const uint32_t senderSSRC,
                         const RTCPUtility::RTCPPacketRTPFBTMMBRItem& TMMBRItem,
                         const int64_t currentTimeMS);

    // get
    int32_t GetTMMBRSet(const uint32_t sourceIdx,
                        const uint32_t targetIdx,
                        TMMBRSet* candidateSet,
                        const int64_t currentTimeMS);

    int64_t lastTimeReceived;

    // FIR
    int32_t lastFIRSequenceNumber;
    int64_t lastFIRRequest;

    // TMMBN
    TMMBRSet        TmmbnBoundingSet;

    // TMMBR
    TMMBRSet        TmmbrSet;

    bool            readyForDelete;
private:
    std::vector<int64_t> _tmmbrSetTimeouts;
};

}  // end namespace RTCPHelp
}  // namespace webrtc

#endif // WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_RECEIVER_HELP_H_