ancillarydata_cea708.cpp

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/* SPDX-License-Identifier: MIT */
#include "ancillarydata_cea708.h"
#include "ajabase/system/debug.h"
#include <ios>
#include <iomanip>

using namespace std;


AJAAncillaryData_Cea708::AJAAncillaryData_Cea708()
    :   AJAAncillaryData()
{
    Init();
}


AJAAncillaryData_Cea708::AJAAncillaryData_Cea708(const AJAAncillaryData_Cea708& clone)
    :   AJAAncillaryData()
{
    Init();
    *this = clone;
}


AJAAncillaryData_Cea708::AJAAncillaryData_Cea708(const AJAAncillaryData_Cea708 *pClone)
    :   AJAAncillaryData()
{
    Init();
    if (pClone != NULL_PTR)
        *this = *pClone;
}


AJAAncillaryData_Cea708::AJAAncillaryData_Cea708(const AJAAncillaryData *pData)
    :   AJAAncillaryData (pData)
{
    Init();
}


AJAAncillaryData_Cea708::~AJAAncillaryData_Cea708()
{
}


void AJAAncillaryData_Cea708::Init (void)
{
    m_ancType    = AJAAncDataType_Cea708;
}


AJAAncillaryData_Cea708 & AJAAncillaryData_Cea708::operator = (const AJAAncillaryData_Cea708 & rhs)
{
    if (this != &rhs)       // ignore self-assignment
        AJAAncillaryData::operator= (rhs);      // copy the base class stuff
    return *this;
}


void AJAAncillaryData_Cea708::Clear (void)
{
    AJAAncillaryData::Clear();
    Init();
}


AJAStatus AJAAncillaryData_Cea708::ParsePayloadData (void)
{
    if (IsEmpty())
    {
        Init();                     // load default values
        m_rcvDataValid = false;
        return AJA_STATUS_FAIL;
    }

    // we have some kind of payload data - try to parse it
    m_rcvDataValid = true;
    return AJA_STATUS_SUCCESS;
}


AJAStatus AJAAncillaryData_Cea708::GeneratePayloadData (void)
{
    AJAStatus status = AJA_STATUS_SUCCESS;

    m_DID = AJAAncillaryData_CEA708_DID;
    m_SID = AJAAncillaryData_CEA708_SID;

//  status = AllocDataMemory(AJAAncillaryData_SMPTE2016_3_PayloadSize);

    if (AJA_SUCCESS(status))
    {
    }

    m_checksum = Calculate8BitChecksum();
    return status;
}

#define LOGMYWARN(__x__)    AJA_sWARNING(AJA_DebugUnit_AJAAncList,      AJAFUNC << ": " << __x__)

AJAAncDataType AJAAncillaryData_Cea708::RecognizeThisAncillaryData (const AJAAncillaryData * pInAncData)
{
    if (pInAncData->GetLocationVideoSpace() == AJAAncDataSpace_VANC)        //  Must be VANC (per SMPTE 334-2)
        if (pInAncData->GetDID() == AJAAncillaryData_CEA708_DID)            //  DID == 0x61
            if (pInAncData->GetSID() == AJAAncillaryData_CEA708_SID)        //  SDID == 0x01
                if (IS_VALID_AJAAncDataChannel(pInAncData->GetLocationDataChannel()))   //  Valid channel?
                {
                    if (pInAncData->GetLocationDataChannel() == AJAAncDataChannel_C)    //  Y OK, Y+C OK
                        LOGMYWARN("CEA708 packet on C-channel");    //  Violates SMPTE 334-1 sec 4 -- bad praxis, but will allow
                    return AJAAncDataType_Cea708;
                }
    return AJAAncDataType_Unknown;
}


ostream & AJAAncillaryData_Cea708::Print (ostream & debugStream, const bool bShowDetail) const
{
    debugStream << IDAsString() << "(" << ::AJAAncDataCodingToString (m_coding) << ")" << endl;
    return AJAAncillaryData::Print (debugStream, bShowDetail);
}