main.cpp

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/* SPDX-License-Identifier: MIT */
// Includes
#include "ajatypes.h"
#include "ajabase/common/options_popt.h"
#include "ajabase/system/process.h"
#include "ntv2card.h"
#include "ntv2devicescanner.h"
#include "ntv2democommon.h"
 
using namespace std;
 
 
// Globals
const uint32_t kAppSignature (NTV2_FOURCC('H','d','r','s'));
 
 
int main (int argc, const char ** argv)
{
    char *  pDeviceSpec     (AJA_NULL); //  Which device to use
    int     eotf            (0);        //  EOTF to enable 0,1,2,3
    int     constLuminance  (0);        //  Constant luminanace?
    int     dolbyVision     (0);        //  Enable dolby vision bit?
    int     verbose         (0);        //  Verbose mode?
    int     noHDR           (0);        //  Disable hdr?
    int     showVersion     (0);        //  Show version and exit?
    AJADebug::Open();
 
    //  Command line option descriptions:
    const CNTV2DemoCommon::PoptOpts optionsTable [] =
    {
        {"device",      'd',    POPT_ARG_STRING,    &pDeviceSpec,       0,  "device to use",            "index#, serial#, or model"},
        {"eotf",        'e',    POPT_ARG_INT,       &eotf,              0,  "0=TradGammaSDR 1=TradGammaHDR 2=ST2084 3=HLG", "EOTF to use"},
        {"luminance",   'l',    POPT_ARG_NONE,      &constLuminance,    0,  "constant luminance?",      AJA_NULL    },
        {"dolbyvision",  0,     POPT_ARG_NONE,      &dolbyVision,       0,  "enable DolbyVision bit?",  AJA_NULL    },
        {"nohdr",        0,     POPT_ARG_NONE,      &noHDR,             0,  "disable HDMI HDR output?", AJA_NULL    },
        {"verbose",     'v',    POPT_ARG_NONE,      &verbose,           0,  "verbose output?",          AJA_NULL    },
        {"version",      0,     POPT_ARG_NONE,      &showVersion,       0,  "show version & exit",      AJA_NULL    },
        POPT_AUTOHELP
        POPT_TABLEEND
    };
    CNTV2DemoCommon::Popt popt(argc, argv, optionsTable);
    if (!popt)
        {cerr << "## ERROR: " << popt.errorStr() << endl;  return 1;}
    if (showVersion)
        {cout << "NTV2HDRSetup, NTV2 SDK " << ::NTV2Version() << endl;  return 0;}
 
    if ((eotf < 0)  ||  (eotf > 3))
        {cerr << "## ERROR:  Bad EOTF value '" << DEC(eotf) << "' -- expected 0, 1, 2 or 3" << endl; return 2;}
 
    //  Open the device...
    CNTV2Card device;
    if (!CNTV2DeviceScanner::GetFirstDeviceFromArgument (pDeviceSpec ? pDeviceSpec : "0", device))
        {cerr << "## ERROR:  Device '" << pDeviceSpec << "' not found" << endl; return 3;}
 
    if (!device.IsDeviceReady(false))
        {cerr << "## ERROR:  Device '" << pDeviceSpec << "' not ready" << endl; return 4;}
 
    if (!device.features().CanDoHDMIHDROut())
        {cerr << "## ERROR:  Device '" << pDeviceSpec << "' does not support HDMI HDR" << endl; return 5;}
 
    //  Acquire the device...
    ULWord  appSignature (0);
    int32_t appPID       (0);
    NTV2TaskMode savedTaskMode(NTV2_TASK_MODE_INVALID);
    device.GetTaskMode(savedTaskMode);          //  Save the current device state
    device.GetStreamingApplication(appSignature, appPID);   //  Who currently "owns" the device?
    if (!device.AcquireStreamForApplication (kAppSignature, int32_t(AJAProcess::GetPid())))
    {
        cerr << "## ERROR:  Unable to acquire device because another app (pid " << appPID << ") owns it" << endl;
        return 6;   //  Device reserved by other app
    }
    device.SetTaskMode(NTV2_OEM_TASKS); //  Set the OEM service level
 
    if (verbose)
    {
        static const string sEOTFs[] = {"Traditional Gamma SDR", "Traditional Gamma HDR", "ST-2084", "HLG", ""};
        cout << "## NOTE:  Options specified:" << endl
            <<  "\tEOTF:        " << DEC(eotf) << " (" << sEOTFs[eotf] << ")" << endl
            <<  "\tLuminance:   " << (constLuminance ? "Constant" : "Non-Constant") << endl
            <<  "\tDolbyVision: " << (dolbyVision ? "Enabled" : "Disabled") << endl;
        if (noHDR)
            cout << "## WARNING:  --nohdr option will disable HDMI HDR output" << endl;
    }
 
    //  Load up the digital primitives with some reasonable values...
    HDRRegValues regValues;
    regValues.setBT2020().electroOpticalTransferFunction = uint8_t(eotf);
    device.SetHDRData(regValues);
 
    //  Setup HDR values based on passed args...
    device.SetHDMIHDRConstantLuminance(bool(constLuminance));
    device.SetHDMIHDRElectroOpticalTransferFunction(uint8_t(eotf)); //  This call is redundant (was set in SetHDRData above)
 
    //  Enabling this will allow dolby vision containing frames to properly display out of HDMI
    device.EnableHDMIHDRDolbyVision(bool(dolbyVision));
 
    //  The master switch for HDMI HDR output
    device.EnableHDMIHDR(noHDR ? false : true);
 
    //  Loop until a key is pressed, that way user can inspect the changes with watcher
    CNTV2DemoCommon::WaitForEnterKeyPress();
 
    device.SetTaskMode(savedTaskMode);  //  Restore prior tasks mode
    device.ReleaseStreamForApplication (kAppSignature, int32_t(AJAProcess::GetPid()));  //  Release the device
 
    return 0;   //  Success!
 
}   //  main