pleora: build for various versions of eBUS, and append version to plugin name

Not the prettiest way to handle this, but we have a need for supporting
multiple versions of eBUS, and this way we can distribute multiple
versions. This also tries to modernize the FindPleora.cmake file.

sys/CMakeLists.txt

@@ -54,9 +54,9 @@ if (PHOENIX_FOUND)
 	add_subdirectory(phoenix)
 endif (PHOENIX_FOUND)
 
-if (PLEORA_FOUND)
+if (Pleora_FOUND)
 	add_subdirectory(pleora)
-endif (PLEORA_FOUND)
+endif (Pleora_FOUND)
 
 if (SAPERA_FOUND)
 	add_subdirectory(sapera)

sys/pleora/CMakeLists.txt

@@ -2,21 +2,28 @@ add_definitions(-D_XKEYCHECK_H)
 
 set (SOURCES
   gstpleora.cpp
-  gstpleorasink.cpp
-  gstpleorasrc.cpp
-  streamingchannelsource.cpp)
+  gstpleorasrc.cpp)
     
 set (HEADERS
-  gstpleorasink.h
-  gstpleorasrc.h
-  streamingchannelsource.h)
+  gstpleorasrc.h)
+
+if (Pleora_VERSION_MAJOR GREATER 5)
+  set (SOURCES
+    ${SOURCES}
+    gstpleorasink.cpp
+    streamingchannelsource.cpp)
+  set (HEADERS
+    ${HEADERS}
+    gstpleorasink.h
+    streamingchannelsource.h)
+endif ()
 
 include_directories (AFTER
-  ${PLEORA_INCLUDE_DIR})
+  ${Pleora_INCLUDE_DIR})
 
-set (libname libgstpleora)
+link_directories(${Pleora_LIBRARY_DIR})
 
-link_directories(${PLEORA_LIBRARIES_DIR})
+set (libname libgstpleora${Pleora_VERSION_MAJOR})
 
 add_library (${libname} MODULE
   ${SOURCES}

sys/pleora/gstpleora.cpp

@@ -2,7 +2,11 @@
 #include "config.h"
 #endif
 
+#include "PvVersion.h"
+#if VERSION_MAJOR >= 6
 #include "gstpleorasink.h"
+#endif
+
 #include "gstpleorasrc.h"
 
 #define GST_CAT_DEFAULT gst_pleora_debug
@@ -14,10 +18,13 @@ plugin_init (GstPlugin * plugin)
   GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT, "pleora", 0,
       "debug category for pleora plugin");
 
+#if VERSION_MAJOR >= 6
+  /* eBUS 6 is needed for this sink element */
   if (!gst_element_register (plugin, "pleorasink", GST_RANK_NONE,
       gst_pleorasink_get_type ())) {
           return FALSE;
   }
+#endif
 
   if (!gst_element_register (plugin, "pleorasrc", GST_RANK_NONE,
       gst_pleorasrc_get_type ())) {
@@ -27,9 +34,11 @@ plugin_init (GstPlugin * plugin)
   return TRUE;
 }
 
+#define PLUGIN_NAME G_PASTE(pleora, VERSION_MAJOR)
+
 GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
     GST_VERSION_MINOR,
-    pleora,
-    "Pleora eBUS video sink/source",
+    PLUGIN_NAME,
+    "Pleora eBUS video elements",
     plugin_init, GST_PACKAGE_VERSION, GST_PACKAGE_LICENSE, GST_PACKAGE_NAME,
     GST_PACKAGE_ORIGIN)