From f80d0a49bd5c81428b2adb0397493477dc6fd70e Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Wed, 24 Sep 2008 06:36:35 +0200
Subject: [PATCH] provide for the GAVL impl facade to be registered as basic
 media type. WIP actual implementation missing...

---
 src/lib/external/libgavl.cpp | 21 +++++++++++++++++----
 src/lib/external/libgavl.hpp | 14 +++++++-------
 2 files changed, 24 insertions(+), 11 deletions(-)

diff --git a/src/lib/external/libgavl.cpp b/src/lib/external/libgavl.cpp
index 7b477c871..054feacaf 100644
--- a/src/lib/external/libgavl.cpp
+++ b/src/lib/external/libgavl.cpp
@@ -1,5 +1,5 @@
 /*
-  STypeManager  -  entry point for dealing with media stream types
+  ImplFacadeGAVL  -  facade for integrating the GAVL media handling library
  
   Copyright (C)         Lumiera.org
     2008,               Hermann Vosseler <Ichthyostega@web.de>
@@ -23,6 +23,7 @@
 
 #include "proc/lumiera.hpp"
 #include "lib/external/libgavl.hpp"
+#include "proc/control/stypemanager.hpp"
 
 extern "C" {
 #include <gavl/gavl.h>
@@ -31,11 +32,24 @@ extern "C" {
 
 namespace lib {
   namespace external {
-  
-    namespace { // implementation internals
     
+    using control::STypeManager;
+    using control::ON_STREAMTYPES_RESET;
+    using lumiera::LifecycleHook;
+    
+    void
+    provide_GAVL_stream_implementation_types ()
+      {
+        STypeManager& typeManager = STypeManager::instance();
+        UNIMPLEMENTED ("wire up a ImplFacade for GAVL implemented media streams");
+      }
+    
+    namespace { // internal functionality
+    
+        LifecycleHook _register_gavl_types_ (ON_STREAMTYPES_RESET, &provide_GAVL_stream_implementation_types);         
     }
   
+  
   /** 
    * Use an type information struct, which actually has to be 
    * a GAVL frametype (TODO), to wire up an ImplFacade such 
@@ -49,7 +63,6 @@ namespace lib {
     TODO ("any chance to verify that the TypeTag actually points to a GAVL frame type descriptor?");
     UNIMPLEMENTED ("wire up an impl facade with the correct GAVL lib functions for the data type in question");
   }
-
   
   
   
diff --git a/src/lib/external/libgavl.hpp b/src/lib/external/libgavl.hpp
index 26f6b6237..706b08ed2 100644
--- a/src/lib/external/libgavl.hpp
+++ b/src/lib/external/libgavl.hpp
@@ -34,18 +34,20 @@ namespace lib {
   
   
   using lumiera::Symbol;
-    
+  
   using lumiera::StreamType;
   typedef StreamType::ImplFacade ImplFacade;
   typedef StreamType::ImplFacade::TypeTag TypeTag;
-
+  
   
   class LibGavl;
   
   /**
    * Concrete media lib implementation facade
    * allowing to work with GAVL data frames and types
-   * in an implementation agnostic way
+   * in an implementation agnostic way.
+   * @note GAVL types are automagically registered into the
+   * control::STypeManager on reset and thus are always available.
    */
   class ImplFacadeGAVL
     : public ImplFacade
@@ -67,7 +69,7 @@ namespace lib {
       virtual DataBuffer* createFrame ()  const;
     };
   
-    
+  
   class LibGavl
     : public control::MediaImplLib
     {
@@ -78,9 +80,7 @@ namespace lib {
       
       virtual ImplFacadeGAVL const&  getImplFacade (TypeTag*);
     };
-    
-    
-  ////////////////////////////////////TODO: dafür sorgen, daß sich das beim Systemstart in den control::STypeManger einklinkt!!!!!!!!
+  
   
   
   } // namespace external