* backport [18632]

 Patch to force alignment in OpenGL if it isn't correctlt positionned before, as panoramix does do it correctly. Patch By Cedric Cocquebert.

modules/video_output/opengl.c

@@ -673,6 +673,12 @@ static int Manage( vout_thread_t *p_vout )
         p_sys->p_vout->pf_unlock( p_sys->p_vout );
     }
 #endif
+// to align in real time in OPENGL
+	if (p_sys->p_vout->i_alignment != p_vout->i_alignment)
+	{
+		p_vout->i_changes = VOUT_CROP_CHANGE;		//to force change
+    	p_sys->p_vout->i_alignment = p_vout->i_alignment;	
+	}
 	
     return i_ret;
 }