pleorasink: add GigE Vision sink for eBUS GEV Tx API

Most basic working implementation

sys/pleora/streamingchannelsource.h

@@ -0,0 +1,53 @@
+/* GStreamer
+ * Copyright (C) 2011 FIXME <fixme@example.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin Street, Suite 500,
+ * Boston, MA 02110-1335, USA.
+ */
+
+#include <PvStreamingChannelSourceDefault.h>
+
+#include "gstpleorasink.h"
+
+class GstStreamingChannelSource:public PvStreamingChannelSourceDefault
+{
+public:
+    GstStreamingChannelSource ();
+
+    void SetSink (GstPleoraSink * sink);
+    void SetCaps (GstCaps * caps);
+    void ResizeBufferIfNeeded (PvBuffer * aBuffer);
+    void SetBuffer (GstBuffer * buf);
+
+    PvBuffer *AllocBuffer ();
+    void FreeBuffer (PvBuffer * aBuffer);
+
+    PvResult QueueBuffer (PvBuffer * aBuffer);
+    PvResult RetrieveBuffer (PvBuffer ** aBuffer);
+
+    void GetWidthInfo (uint32_t & aMin, uint32_t & aMax, uint32_t & aInc) const;
+    void GetHeightInfo (uint32_t & aMin, uint32_t & aMax, uint32_t & aInc) const;
+    PvResult GetSupportedPixelType (int aIndex, PvPixelType & aPixelType) const;
+
+private:
+    GstPleoraSink * mSink;
+    PvBuffer *mAcquisitionBuffer;
+    gboolean mBufferValid;
+    gint mBufferCount;
+
+    gint mWidth;
+    gint mHeight;
+    PvPixelType mPixelType;
+};