Initial code (pre-GitHub)

Contains:
- ffmpeg object wrappers
- base encoder class
- Apply ProRes encoder (prores_aw)
- OBS plugin structure

cmake/util.cmake

@@ -0,0 +1,19 @@
+function(cacheset Name Value)
+	get_property(V_ADVANCED CACHE "${Name}" PROPERTY ADVANCED)
+	get_property(V_TYPE CACHE "${Name}" PROPERTY TYPE)
+	get_property(V_HELPSTRING CACHE "${Name}" PROPERTY HELPSTRING)
+	set(${Name} ${Value} CACHE ${V_TYPE} ${V_HELPSTRING} FORCE)
+	if(${V_ADVANCED})
+		mark_as_advanced(FORCE ${Name})
+	endif()
+endfunction()
+
+function(cacheclear Name)
+	get_property(V_ADVANCED CACHE "${Name}" PROPERTY ADVANCED)
+	get_property(V_TYPE CACHE "${Name}" PROPERTY TYPE)
+	get_property(V_HELPSTRING CACHE "${Name}" PROPERTY HELPSTRING)
+	set(${Name} 0 CACHE ${V_TYPE} ${V_HELPSTRING} FORCE)
+	if(${V_ADVANCED})
+		mark_as_advanced(FORCE ${Name})
+	endif()	
+endfunction()