main.cpp

Go to the documentation of this file.

/* SPDX-License-Identifier: MIT */
//  Includes
#include "ntv2dolbycapture.h"
#include "ajabase/system/process.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)
{
    int         showVersion     (0);            //  Show version?
    char *      pDeviceSpec     (AJA_NULL);     //  Device specifier string, if any
    char *      pPixelFormat    (AJA_NULL);     //  Pixel format argument
    char *      pFramesSpec     (AJA_NULL);     //  AutoCirculate frames spec
    char *      pInputSrcSpec   (AJA_NULL);     //  SDI source spec
    uint32_t    channelNumber   (1);            //  Channel/FrameStore to use
    int         doMultiFormat   (0);            //  Enable multi-format?
    int         doRecordAux     (0);            //  Record aux?
    int         doRecordAudio   (0);            //  Record audio?
    int         doRecordDolby   (0);            //  Record dolby?
    int         doAudioFilter   (0);            //  Enable anc audio filter?
    int         doFrameStats    (0);            //  Output per frame data?
    AJAStatus   status          (AJA_STATUS_SUCCESS);
    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"     },
        {"frames",        0,    POPT_ARG_STRING,    &pFramesSpec,   0,  "frames to AutoCirculate",  "num[@min] or min-max"      },
        {"input",       'i',    POPT_ARG_STRING,    &pInputSrcSpec, 0,  "which HDMI input",         "?=list"                    },
        {"aux",           0,    POPT_ARG_NONE,      &doRecordAux,   0,  "record all aux to file",   AJA_NULL                    },
        {"audio",         0,    POPT_ARG_NONE,      &doRecordAudio, 0,  "record aux audio to file", AJA_NULL                    },
        {"dolby",         0,    POPT_ARG_NONE,      &doRecordDolby, 0,  "record dolby to file",     AJA_NULL                    },
        {"filter",      'x',    POPT_ARG_NONE,      &doAudioFilter, 0,  "only capture audio anc",   AJA_NULL                    },
        {"stats",       's',    POPT_ARG_NONE,      &doFrameStats,  0,  "show per-frame stats",     AJA_NULL                    },
        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;
 
    DolbyCaptureConfig 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);
 
    //  Input source
    const string legalSources (CNTV2DemoCommon::GetInputSourceStrings(NTV2_IOKINDS_HDMI, deviceSpec));
    const string inputSourceStr (pInputSrcSpec ? CNTV2DemoCommon::ToLower(string(pInputSrcSpec)) : "");
    if (inputSourceStr == "?" || inputSourceStr == "list")
        {cout << legalSources << endl;  return 0;}
    if (!inputSourceStr.empty())
    {
        config.fInputSource = CNTV2DemoCommon::GetInputSourceFromString(inputSourceStr);
        if (!NTV2_IS_VALID_INPUT_SOURCE(config.fInputSource))
            {cerr << "## ERROR:  Input source '" << inputSourceStr << "' not one of:" << endl << legalSources << endl;  return 1;}
    }   //  if input source specified
    //  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;
    }
 
    //  AutoCirculate Frames
    static const string legalFramesSpec("{frameCount}[@{firstFrameNum}]  or  {firstFrameNum}-{lastFrameNum}");
    const string framesSpec (pFramesSpec ? pFramesSpec : "");
    if (!framesSpec.empty())
    {
        const string parseResult(config.fFrames.setFromString(framesSpec));
        if (!parseResult.empty())
            {cerr << "## ERROR:  Bad 'frames' spec '" << framesSpec << "'\n## " << parseResult << endl;  return 1;}
    }
    if (!config.fFrames.valid())
        {cerr << "## ERROR:  Bad 'frames' spec '" << framesSpec << "'\n## Expected " << legalFramesSpec << endl;  return 1;}
 
    //  HDMI Aux Capture
    if (doRecordAux)
    {   // invent a file name...
        ostringstream fileName;  fileName << "ntv2dolbycapture-" << deviceSpec << "-"
                << ::NTV2ChannelToString(config.fInputChannel,true) << "-" << AJAProcess::GetPid() << ".aux";
        config.fAncDataFilePath = fileName.str();
    }
 
    //  Audio Capture
    if (doRecordAudio)
    {   // invent a file name...
        ostringstream fileName;  fileName << "ntv2dolbycapture-" << deviceSpec << "-"
                << ::NTV2ChannelToString(config.fInputChannel,true) << "-" << AJAProcess::GetPid() << ".raw";
        config.fAudioDataFilePath = fileName.str();
    }
 
    //  Dolby Capture
    if (doRecordDolby)
    {   // invent a file name...
        ostringstream fileName;  fileName << "ntv2dolbycapture-" << deviceSpec << "-"
                << ::NTV2ChannelToString(config.fInputChannel,true) << "-" << AJAProcess::GetPid() << ".ec3";
        config.fDolbyDataFilePath = fileName.str();
    }
 
    config.fDoAudioFilter   = doAudioFilter ? true : false;
    config.fDoFrameStats    = doFrameStats  ? true : false;
    config.fDoMultiFormat   = doMultiFormat ? true : false;
    config.fWithAnc         = doRecordAux   ? true : false;
    config.fWithAudio       = doRecordAudio ? true : false;
 
    //  Instantiate and initialize the ntv2dolbycapture object
    NTV2DolbyCapture capturer(config);
    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 the capturer...
    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 quit time
 
    cout << endl;
    return 0;
 
}   //  main