MKV: stream_io_callback simplifications

modules/demux/mkv/stream_io_callback.cpp

@@ -75,20 +75,11 @@ void vlc_stream_io_callback::setFilePointer(int64_t i_offset, seek_mode mode )
     }
     return;
 }
-size_t vlc_stream_io_callback::write( const void *p_buffer, size_t i_size )
-{
-    return 0;
-}
+
 uint64 vlc_stream_io_callback::getFilePointer( void )
 {
     if ( s == NULL )
         return 0;
     return stream_Tell( s );
 }
-void vlc_stream_io_callback::close( void )
-{
-    return;
-}
-
-
 

modules/demux/mkv/stream_io_callback.hpp

@@ -45,9 +45,9 @@ class vlc_stream_io_callback: public IOCallback
 
     virtual uint32   read            ( void *p_buffer, size_t i_size);
     virtual void     setFilePointer  ( int64_t i_offset, seek_mode mode = seek_beginning );
-    virtual size_t   write           ( const void *p_buffer, size_t i_size);
+    virtual size_t   write           ( const void *p_buffer, size_t i_size) { return 0; }
     virtual uint64   getFilePointer  ( void );
-    virtual void     close           ( void );
+    virtual void     close           ( void ) { return; }
 };