コード例 #1
0
int main( int aCount, const char ** aArgs )
{
    char lDeviceAddress[1024];
    char lMulticastAddress[1024];
    char lLocalAddress[1024];

    memset( lLocalAddress, 0, 1024 );
    sprintf( lMulticastAddress, "239.192.1.1" );
    memset( lDeviceAddress, 0, 1024 );

    bool lPassive = true;
    PvUInt32 lChannel = 0;
    PvUInt16 lHostPort = 1042;
    PvResult lResult;
    for ( int i=1; i<aCount; i++ )
	{
		std::string lString = aArgs[i];
        if ( lString.find( "--hostport" ) != std::string::npos )
        {
            sscanf( aArgs[i], "--hostport=%d", &lHostPort );
        }
        else if ( lString.find( "--localaddress" ) != std::string::npos )
        {
            sscanf( aArgs[i], "--localaddress=%s", lLocalAddress );
        }
        else if ( lString.find( "--multicastaddress" ) != std::string::npos )
        {
            sscanf( aArgs[i], "--multicastaddress=%s", lMulticastAddress );
        }
        else if ( lString.find( "--deviceaddress" ) != std::string::npos )
        {
            sscanf( aArgs[i], "--deviceaddress=%s", lDeviceAddress );
        }
        else if ( lString.find( "--unicast" ) != std::string::npos )
        {
            memset( lMulticastAddress, 0, 1024 );
        }
        else if ( lString.find( "--connectdevice" ) != std::string::npos )
        {
            lPassive = false;
        }
        else if ( lString.find( "--channel" ) != std::string::npos )
        {
            sscanf( aArgs[i], "--channel=%d", &lChannel );
        }
        else if ( lString.find( "--help" ) != std::string::npos )
        {
            PrintHelp();
            return 0;
        }
        else
        {
            printf( "Did not recognize argument %s\n", aArgs[i] );
            PrintHelp();
            return 1;
        }
    }

    if ( strlen( lDeviceAddress ) == 0 )
    {
        // No device address specified. Prompt with the device finder.
        PvDeviceFinderWnd lWnd;
        if ( !lWnd.ShowModal().IsOK() )
        {
            printf( "No GEV device selected.\n" );
            return 1;
        }
        PvDeviceInfo* lInfo = lWnd.GetSelected();
        sprintf( lDeviceAddress, "%s", lInfo->GetIPAddress().GetAscii() );
    }

    PvStream lStream;

    if ( strlen( lMulticastAddress ) == 0 )
    {
        lResult = lStream.Open( lDeviceAddress, lHostPort, lChannel, lLocalAddress );
        printf( "Receiving from device %s on interface %s:%d\n", 
            lDeviceAddress, lStream.GetLocalIPAddress().GetAscii(), lStream.GetLocalPort() );
    }
    else
    {
        lResult = lStream.Open( lDeviceAddress, lMulticastAddress, lHostPort, lChannel, lLocalAddress );
        printf( "Receiving from multicast address %s:%d (device %s) on interface %s:%d\n",
            lMulticastAddress, lHostPort, lDeviceAddress, lStream.GetLocalIPAddress().GetAscii(), lStream.GetLocalPort() );
    }

    if ( !lResult.IsOK() )
    {
        printf( "Failed opening the incoming stream: %s\n", lResult.GetDescription().GetAscii() );
        return 1;
    }

    PvPipeline lPipeline( &lStream );

    PvDevice lDevice;
    PvGenParameterArray *lDeviceParams = NULL;
    if ( !lPassive )
    {
        lResult = lDevice.Connect( lDeviceAddress );
        if ( !lResult.IsOK() )
        {
            printf( "Failed connecting to the device to set its destination and initiate an AcquisitionStart: %s\n", 
                lResult.GetDescription().GetAscii() );
            printf( "If the eBUS Transmitter to receive from doesn't have full device capabilities, add the --passive command line option and initiate streaming manually.\n" );
            return 1;
        }
        lDevice.SetStreamDestination( lStream.GetLocalIPAddress(), lStream.GetLocalPort(), lChannel );
            
        // Get device parameters need to control streaming
        lDeviceParams = lDevice.GetGenParameters();

        // Reading payload size from device. Otherwise, the pipeline may miss the first several images.
        PvInt64 lReceivePayloadSize = 0;
	    lDeviceParams->GetIntegerValue( "PayloadSize", lReceivePayloadSize );

        // Set the Buffer size and the Buffer count
        lPipeline.SetBufferSize( static_cast<PvUInt32>( lReceivePayloadSize ) );
    }

    lPipeline.SetBufferCount( 16 ); // Increase for high frame rate without missing block IDs
    lPipeline.Start();

    if ( !lPassive )
    {
        // TLParamsLocked is optional but when present, it MUST be set to 1
        // before sending the AcquisitionStart command
	    lDeviceParams->SetIntegerValue( "TLParamsLocked", 1 );

	    lDeviceParams->ExecuteCommand( "GevTimestampControlReset" );

        // The pipeline is already "armed", we just have to tell the device
        // to start sending us images
	    lDeviceParams->ExecuteCommand( "AcquisitionStart" );
    }
    
    // Get stream parameters/stats
    PvGenParameterArray *lStreamParams = lStream.GetParameters();

    printf( "Press any key to stop receiving.  \n" );

    char lDoodle[] = "|\\-|-/";
    int lDoodleIndex = 0;
    PvInt64 lImageCountVal = 0;
    double lFrameRateVal = 0.0;
    double lBandwidthVal = 0.0;

    while ( !PvKbHit() )
    {
        PvBuffer *lBuffer = NULL;
        PvResult  lOperationResult;
        PvResult lResult = lPipeline.RetrieveNextBuffer( &lBuffer, 1000, &lOperationResult );
        
        if ( lResult.IsOK() )
        {
            if ( lOperationResult.IsOK() )
            {
                //
                // We now have a valid buffer. This is where you would typically process the buffer.
                // -----------------------------------------------------------------------------------------
                // ...

                lStreamParams->GetIntegerValue( "ImagesCount", lImageCountVal );
                lStreamParams->GetFloatValue( "AcquisitionRateAverage", lFrameRateVal );
                lStreamParams->GetFloatValue( "BandwidthAverage", lBandwidthVal );

                printf( "%c BlockID: %016llX %.01f FPS %.01f Mb/s\r", 
                    lDoodle[ lDoodleIndex ],
                    lBuffer->GetBlockID(),
                    lFrameRateVal,
                    lBandwidthVal / 1000000.0 ); 
            }
            // We have an image - do some processing (...) and VERY IMPORTANT,
            // release the buffer back to the pipeline
            lPipeline.ReleaseBuffer( lBuffer );
        }
        else
        {
            printf( "%c Timeout\r", lDoodle[ lDoodleIndex ] );
        }

        ++lDoodleIndex %= 6;
    }
}