Add Stream Reader Thread

StreamReader.cpp

@@ -0,0 +1,60 @@
+#include "StreamReader.hpp"
+
+StreamReader::StreamReader(PvDevice *Device, PvStream *Stream, PvPipeline *Pipeline)
+{
+    this->Device = Device;
+    this->Stream = Stream;
+    this->Pipeline = Pipeline;
+}
+
+void StreamReader::run()
+{
+    while (!isInterruptionRequested())
+    {
+        PvBuffer *lBuffer = NULL;
+        PvResult lOperationResult;
+
+        // wait for this to unblock before called in event loop
+        // Retrieve next buffer
+        PvResult lResult = Stream->RetrieveBuffer(&lBuffer, &lOperationResult, 1000);
+        if (lResult.IsOK())
+        {
+            if (lOperationResult.IsOK())
+            {
+                PvPayloadType lType;
+
+                // If the buffer contains an image, display width and height.
+                uint32_t lWidth = 0, lHeight = 0;
+                lType = lBuffer->GetPayloadType();
+
+                if (lType == PvPayloadTypeImage)
+                {
+                    // Get image specific buffer interface.
+                    PvImage *lImage = lBuffer->GetImage();
+
+                    // Read width, height.
+                    lWidth = lImage->GetWidth();
+                    lHeight = lImage->GetHeight();
+
+                    NewImage(lWidth, lHeight, lImage->GetDataPointer());
+                }
+                else 
+                {
+                    qWarning() << " (buffer does not contain image)";
+                }
+            }
+            else
+            {
+                qInfo() << lOperationResult.GetCodeString().GetAscii() << "\r";
+            }
+
+            // Re-queue the buffer in the stream object
+            Stream->QueueBuffer(lBuffer);
+        }
+        else
+        {
+            // Retrieve buffer failure
+            qCritical() << lResult.GetCodeString().GetAscii() << "\r";
+        }
+    }
+}