main.cpp

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/* SPDX-License-Identifier: MIT */
//  Includes
#include "ntv2capture4k.h"
#include <signal.h>
 
using namespace std;
 
 
//  Globals
static bool gGlobalQuit (false);    //  Set this "true" to exit gracefully
 
 
static void SignalHandler (int inSignal)
{
    (void) inSignal;
    gGlobalQuit = true;
}
 
 
int main (int argc, const char ** argv)
{
    char *          pDeviceSpec     (AJA_NULL);     //  Device specifier string, if any
    char *          pPixelFormat    (AJA_NULL);     //  Pixel format argument
    int             channelNumber   (1);            //  Channel/FrameStore to use
    int             doMultiFormat   (0);            //  MultiFormat mode?
    int             showVersion     (0);            //  Show version?
    int             doQuadRouting   (0);            //  Quad/Square routing (i.e. not TSI)?
    int             numAudioLinks   (1);            //  Number of audio systems for multi-link audio
    AJADebug::Open();
 
    //  Command line option descriptions:
    const CNTV2DemoCommon::PoptOpts optionsTable [] =
    {
        {"version",       0,    POPT_ARG_NONE,      &showVersion,   0,  "show version & exit",      AJA_NULL                    },
        {"device",      'd',    POPT_ARG_STRING,    &pDeviceSpec,   0,  "device to use",            "index#, serial#, or model" },
        {"channel",     'c',    POPT_ARG_INT,       &channelNumber, 0,  "channel to use",           "1-8"                       },
        {"multiFormat", 'm',    POPT_ARG_NONE,      &doMultiFormat, 0,  "use multi-format/channel", AJA_NULL                    },
        {"pixelFormat", 'p',    POPT_ARG_STRING,    &pPixelFormat,  0,  "pixel format to use",      "'?' or 'list' to list"     },
        {"squares",     's',    POPT_ARG_NONE,      &doQuadRouting, 0,  "use quad routing?",        AJA_NULL                    },
        {"audioLinks",    0,    POPT_ARG_INT,       &numAudioLinks, 0,  "# multilink aud systems",  "0=silence or 1-4"          },
        POPT_AUTOHELP
        POPT_TABLEEND
    };
    CNTV2DemoCommon::Popt popt(argc, argv, optionsTable);
    if (!popt)
        {cerr << "## ERROR: " << popt.errorStr() << endl;  return 2;}
    if (showVersion)
        {cout << argv[0] << ", NTV2 SDK " << ::NTV2Version() << endl;  return 0;}
 
    //  Device
    const string deviceSpec (pDeviceSpec ? pDeviceSpec : "0");
    if (!CNTV2DemoCommon::IsValidDevice(deviceSpec))
        return 1;
 
    CaptureConfig config(deviceSpec);
 
    //  Channel
    if ((channelNumber < 1)  ||  (channelNumber > 8))
        {cerr << "## ERROR:  Invalid channel number " << channelNumber << " -- expected 1 thru 8" << endl;  return 1;}
    config.fInputChannel = NTV2Channel(channelNumber - 1);
 
    //  Pixel Format
    const string pixelFormatStr (pPixelFormat  ?  pPixelFormat  :  "");
    config.fPixelFormat = pixelFormatStr.empty() ? NTV2_FBF_8BIT_YCBCR : CNTV2DemoCommon::GetPixelFormatFromString(pixelFormatStr);
    if (pixelFormatStr == "?"  ||  pixelFormatStr == "list")
        {cout << CNTV2DemoCommon::GetPixelFormatStrings(PIXEL_FORMATS_ALL, deviceSpec) << endl;  return 0;}
    else if (!pixelFormatStr.empty()  &&  !NTV2_IS_VALID_FRAME_BUFFER_FORMAT(config.fPixelFormat))
    {
        cerr    << "## ERROR:  Invalid '--pixelFormat' value '" << pixelFormatStr << "' -- expected values:" << endl
                << CNTV2DemoCommon::GetPixelFormatStrings(PIXEL_FORMATS_ALL, deviceSpec) << endl;
        return 2;
    }
 
    //  Audio
    if (numAudioLinks < 0)
        {cerr << "## ERROR:  invalid '--audioLinks' value '" << numAudioLinks << "' -- negative" << endl;  return 1;}
    if (numAudioLinks > 4)
        {cerr << "## ERROR:  invalid '--audioLinks' value '" << numAudioLinks << "' -- exceeds 4" << endl;  return 1;}
    if (numAudioLinks != 1)
        config.fNumAudioLinks = UWord(numAudioLinks);
 
    config.fWithAudio       = config.fNumAudioLinks ? true : false; //  Enable audio if numLinks > 0, disable if zero
    config.fDoTSIRouting    = !doQuadRouting;                       //  TSI?
    config.fWithAnc         = true;                                 //  Always capture anc
    config.fDoMultiFormat   = doMultiFormat ? true : false;         //  Multiformat mode?
 
    //  Instantiate and initialize the NTV2Capture4K object...
    NTV2Capture4K capturer(config);
    AJAStatus status = capturer.Init();
    if (AJA_FAILURE(status))
        {cout << "## ERROR:  Initialization failed: " << ::AJAStatusToString(status) << endl;   return 1;}
 
    ::signal (SIGINT, SignalHandler);
    #if defined(AJAMac)
        ::signal (SIGHUP, SignalHandler);
        ::signal (SIGQUIT, SignalHandler);
    #endif
 
    //  Run it...
    capturer.Run();
 
    cout    << "   Frames   Frames   Buffer" << endl
            << " Captured  Dropped    Level" << endl;
    do
    {   //  Poll its status until stopped...
        ULWord  framesProcessed, framesDropped, bufferLevel;
        capturer.GetACStatus (framesProcessed, framesDropped, bufferLevel);
        cout << setw(9) << framesProcessed << setw(9) << framesDropped << setw(9) << bufferLevel << "\r" << flush;
        AJATime::Sleep(2000);
    } while (!gGlobalQuit); //  loop til done
 
    cout << endl;
    return 0;
 
}   //  main