bool PleoraVideo::GrabNext( unsigned char* image, bool /*wait*/ )
{
PvBuffer *lBuffer = NULL;
PvResult lOperationResult;
// Retrieve next buffer
PvResult lResult = lStream->RetrieveBuffer( &lBuffer, &lOperationResult, 1000 );
if ( !lResult.IsOK() ) {
pango_print_warn("Pleora error: %s\n", lResult.GetCodeString().GetAscii() );
return false;
}
bool good = false;
if ( lOperationResult.IsOK() )
{
PvPayloadType lType = lBuffer->GetPayloadType();
if ( lType == PvPayloadTypeImage )
{
PvImage *lImage = lBuffer->GetImage();
std::memcpy(image, lImage->GetDataPointer(), size_bytes);
good = true;
}
} else {
pango_print_warn("Pleora error: %s\n", lOperationResult.GetCodeString().GetAscii() );
}
lStream->QueueBuffer( lBuffer );
return good;
}
int ImperxStream::Snap(cv::Mat &frame, int timeout)
{
// std::cout << "ImperxStream::Snap starting" << std::endl;
// The pipeline is already "armed", we just have to tell the device
// to start sending us images
lDeviceParams->ExecuteCommand( "AcquisitionStart" );
int lWidth, lHeight, result = 0;
// Retrieve next buffer
PvBuffer *lBuffer = NULL;
PvResult lOperationResult;
PvResult lResult = lPipeline.RetrieveNextBuffer( &lBuffer, timeout, &lOperationResult );
if ( lResult.IsOK() )
{
if ( lOperationResult.IsOK() )
{
// Process Buffer
if ( lBuffer->GetPayloadType() == PvPayloadTypeImage )
{
// std::cout << "ImperxStream::Snap Copying frame" << std::endl;
// Get image specific buffer interface
PvImage *lImage = lBuffer->GetImage();
// Read width, height
lWidth = (int) lImage->GetWidth();
lHeight = (int) lImage->GetHeight();
unsigned char *img = lImage->GetDataPointer();
cv::Mat lframe(lHeight,lWidth,CV_8UC1,img, cv::Mat::AUTO_STEP);
lframe.copyTo(frame);
result = 0;
}
else
{
std::cout << "ImperxStream::Snap No image in buffer" << std::endl;
result = 1;
}
}
else
{
std::cout << "ImperxStream::Snap Operation result: " << lOperationResult << std::endl;
result = 1;;
}
// We have an image - do some processing (...) and VERY IMPORTANT,
// release the buffer back to the pipeline
}
else
{
std::cout << "ImperxStream::Snap Timeout: " << lResult << std::endl;
result = 1;
}
lPipeline.ReleaseBuffer( lBuffer );
// std::cout << "ImperxStream::Snap Exiting" << std::endl;
return result;
}
bool PleoraVideo::GrabNewest( unsigned char* image, bool wait )
{
PvBuffer *lBuffer0 = NULL;
PvBuffer *lBuffer = NULL;
PvResult lOperationResult;
const uint32_t timeout = wait ? 0xFFFFFFFF : 0;
PvResult lResult = lStream->RetrieveBuffer( &lBuffer, &lOperationResult, timeout );
if ( !lResult.IsOK() ) {
pango_print_warn("Pleora error: %s\n", lResult.GetCodeString().GetAscii() );
return false;
}else if( !lOperationResult.IsOK() ) {
pango_print_warn("Pleora error: %s\n", lOperationResult.GetCodeString().GetAscii() );
lStream->QueueBuffer( lBuffer );
return false;
}
// We have at least one frame. Capture more until we fail, 0 timeout
while(true) {
PvResult lResult = lStream->RetrieveBuffer( &lBuffer0, &lOperationResult, 0 );
if ( !lResult.IsOK() ) {
break;
}else if( !lOperationResult.IsOK() ) {
lStream->QueueBuffer( lBuffer0 );
break;
}else{
lStream->QueueBuffer( lBuffer );
lBuffer = lBuffer0;
}
}
bool good = false;
PvPayloadType lType = lBuffer->GetPayloadType();
if ( lType == PvPayloadTypeImage )
{
PvImage *lImage = lBuffer->GetImage();
std::memcpy(image, lImage->GetDataPointer(), size_bytes);
good = true;
}
lStream->QueueBuffer( lBuffer );
return good;
}
void ImperxStream::Stream(unsigned char *frame, Semaphore &frame_semaphore, Flag &stream_flag)
{
// The pipeline is already "armed", we just have to tell the device
// to start sending us images
printf( "Sending StartAcquisition command to device\n" );
lDeviceParams->ExecuteCommand( "AcquisitionStart" );
char lDoodle[] = "|\\-|-/";
int lDoodleIndex = 0;
PvInt64 lImageCountVal = 0;
double lFrameRateVal = 0.0;
double lBandwidthVal = 0.0;
// Acquire images until the user instructs us to stop
printf( "\n<press a key to stop streaming>\n" );
while ( stream_flag.check() )
{
std::cout << "here\n";
// Retrieve next buffer
PvBuffer *lBuffer = NULL;
PvResult lOperationResult;
PvResult lResult = lPipeline.RetrieveNextBuffer( &lBuffer, 1000, &lOperationResult );
if ( lResult.IsOK() )
{
if ( lOperationResult.IsOK() )
{
// Process Buffer
lStreamParams->GetIntegerValue( "ImagesCount", lImageCountVal );
lStreamParams->GetFloatValue( "AcquisitionRateAverage", lFrameRateVal );
lStreamParams->GetFloatValue( "BandwidthAverage", lBandwidthVal );
// If the buffer contains an image, display width and height
PvUInt32 lWidth = 0, lHeight = 0;
if ( lBuffer->GetPayloadType() == PvPayloadTypeImage )
{
// Get image specific buffer interface
PvImage *lImage = lBuffer->GetImage();
// Read width, height
lWidth = lBuffer->GetImage()->GetWidth();
lHeight = lBuffer->GetImage()->GetHeight();
stream_flag.raise();
}
std::cout << lWidth << " " << lHeight << "\n";
}
// We have an image - do some processing (...) and VERY IMPORTANT,
// release the buffer back to the pipeline
//semaphore thing
//get all in there.
//a semaphore thing
lPipeline.ReleaseBuffer( lBuffer );
}
else
{
// Timeout
printf( "%c Timeout\r", lDoodle[ lDoodleIndex ] );
}
++lDoodleIndex %= 6;
}
}
void ImperxStream::Snap(cv::Mat &frame)
{
// The pipeline is already "armed", we just have to tell the device
// to start sending us images
printf( "Sending StartAcquisition command to device\n" );
lDeviceParams->ExecuteCommand( "AcquisitionStart" );
char lDoodle[] = "|\\-|-/";
int lDoodleIndex = 0;
PvInt64 lImageCountVal = 0;
double lFrameRateVal = 0.0;
double lBandwidthVal = 0.0;
std::cout << "here\n";
// Retrieve next buffer
PvBuffer *lBuffer = NULL;
PvResult lOperationResult;
PvResult lResult = lPipeline.RetrieveNextBuffer( &lBuffer, 1000, &lOperationResult );
if ( lResult.IsOK() )
{
if ( lOperationResult.IsOK() )
{
// Process Buffer
lStreamParams->GetIntegerValue( "ImagesCount", lImageCountVal );
lStreamParams->GetFloatValue( "AcquisitionRateAverage", lFrameRateVal );
lStreamParams->GetFloatValue( "BandwidthAverage", lBandwidthVal );
// If the buffer contains an image, display width and height
int lWidth = 0, lHeight = 0;
if ( lBuffer->GetPayloadType() == PvPayloadTypeImage )
{
// Get image specific buffer interface
PvImage *lImage = lBuffer->GetImage();
// Read width, height
lWidth = (int) lImage->GetWidth();
lHeight = (int) lImage->GetHeight();
unsigned char *img = lImage->GetDataPointer();
// cv::Mat lframe(lHeight,lWidth,CV_8UC1,img, cv::Mat::AUTO_STEP);
// lframe.copyTo(frame);
for (int m = 0; m < lHeight; m++)
{
for (int n = 0; n < lWidth; n++)
{
frame.at<unsigned char>(m,n) = img[m*lWidth + n];
// std::cout << (short int) img[n*lHeight +m] << " ";
}
}
}
else
{
std::cout << "No image\n";
}
std::cout << lWidth << " " << lHeight << "\n";
}
else
{
std::cout << "Damaged Result\n";
}
// We have an image - do some processing (...) and VERY IMPORTANT,
// release the buffer back to the pipeline
//semaphore thing
//get all in there.
//a semaphore thing
lPipeline.ReleaseBuffer( lBuffer );
}
else
{
std::cout << "Timeout\n";
}
++lDoodleIndex %= 6;
}
bool StartSlave()
{
// Let the user select the device to receive from
PvString lDeviceIP;
if ( !SelectDevice( lDeviceIP ) )
{
return false;
}
// Create the PvStream object
PvStream lStream;
// Create the PvPipeline object
PvPipeline lPipeline( &lStream );
// Create a PvPipeline event sink (used to trap buffer too small events)
PipelineEventSink lPipelineEventSink;
lPipeline.RegisterEventSink( &lPipelineEventSink );
// Open stream
printf( "Opening stream\n" );
lStream.Open( lDeviceIP, "239.192.1.1", 1042 );
// IMPORTANT: the pipeline needs to be "armed", or started before
// we instruct the device to send us images
printf( "Starting pipeline\n" );
lPipeline.SetBufferCount( 16 );
lPipeline.Start();
// Get stream parameters/stats
PvGenParameterArray *lStreamParams = lStream.GetParameters();
PvGenInteger *lCount = dynamic_cast<PvGenInteger *>( lStreamParams->Get( "ImagesCount" ) );
PvGenFloat *lFrameRate = dynamic_cast<PvGenFloat *>( lStreamParams->Get( "AcquisitionRateAverage" ) );
PvGenFloat *lBandwidth = dynamic_cast<PvGenFloat *>( lStreamParams->Get( "BandwidthAverage" ) );
PvGenBoolean *lIgnoreMissingPackets = dynamic_cast<PvGenBoolean *>( lStreamParams->Get( "IgnoreMissingPackets" ) );
// Disabling resend packets
lIgnoreMissingPackets->SetValue( true );
char lDoodle[] = "|\\-|-/";
int lDoodleIndex = 0;
PvInt64 lImageCountVal = 0;
double lFrameRateVal = 0.0;
double lBandwidthVal = 0.0;
// Acquire images until the user instructs us to stop
printf( "\n<press a key to stop receiving>\n" );
while ( !PvKbHit() )
{
// Retrieve next buffer
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.
// -----------------------------------------------------------------------------------------
// ...
lCount->GetValue( lImageCountVal );
lFrameRate->GetValue( lFrameRateVal );
lBandwidth->GetValue( lBandwidthVal );
// If the buffer contains an image, display width and height
PvUInt32 lWidth = 0, lHeight = 0;
if ( lBuffer->GetPayloadType() == PvPayloadTypeImage )
{
// Get image specific buffer interface
PvImage *lImage = lBuffer->GetImage();
// Read width, height
lWidth = lBuffer->GetImage()->GetWidth();
lHeight = lBuffer->GetImage()->GetHeight();
}
printf( "%c BlockID: %016llX W: %i H: %i %.01f FPS %.01f Mb/s\r",
lDoodle[ lDoodleIndex ],
lBuffer->GetBlockID(),
lWidth,
lHeight,
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
{
// Timeout
printf( "%c Timeout\r", lDoodle[ lDoodleIndex ] );
}
++lDoodleIndex %= 6;
}
PvGetChar(); // Flush key buffer for next stop
printf( "\n\n" );
// We stop the pipeline - letting the object lapse out of
// scope would have had the destructor do the same, but we do it anyway
printf( "Stop pipeline\n" );
lPipeline.Stop();
// Now close the stream. Also optionnal but nice to have
printf( "Closing stream\n" );
lStream.Close();
// Unregister pipeline event sink. Optional but nice to have.
lPipeline.UnregisterEventSink( &lPipelineEventSink );
return true;
}
