doubango/tinySIGCOMP/src/tcomp_reqfeed.h
c732d49e
 /*
 * Copyright (C) 2017, University of the Basque Country (UPV/EHU)
 * Contact for licensing options: <licensing-mcpttclient(at)mcopenplatform(dot)com>
 *
 * The original file was part of Open Source Doubango Framework
 * Copyright (C) 2010-2011 Mamadou Diop.
 * Copyright (C) 2012 Doubango Telecom <http://doubango.org>
 *
 * This file is part of Open Source Doubango Framework.
 *
 * DOUBANGO is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * DOUBANGO is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with DOUBANGO.
 *
 */
 
 /**@file tcomp_reqfeed.h
  * @brief  SIGCOMP requested feedback item as per rfc 3320 subclause 9.4.9.
  *
  * @author Mamadou Diop <diopmamadou(at)yahoo.fr>
  *
 
  */
 #ifndef TCOMP_REQ_FEEDBACK_H
 #define TCOMP_REQ_FEEDBACK_H
 
 #include "tinysigcomp_config.h"
 #include "tcomp_buffer.h"
 #include "tsk_object.h"
 
 TCOMP_BEGIN_DECLS
 
 /*
 0   1   2   3   4   5   6   7
 +---+---+---+---+---+---+---+---+
 |     reserved      | Q | S | I |  requested_feedback_location
 +---+---+---+---+---+---+---+---+
 |                               |
 :    requested feedback item    :  if Q = 1
 |                               |
 +---+---+---+---+---+---+---+---+
 */
 
 /** SigComp Requested feedback item as per RFC 3320 subclause 9.4.9.
 */
 typedef struct tcomp_reqfeed_s
 {
 	TSK_DECLARE_OBJECT;
 
 	unsigned Q:1; /**< The Q-bit indicates whether a requested feedback item is present or not.*/
 	unsigned S:1; /**< The compressor sets the S-bit to 1 if it does not wish (or no longer
 	wishes) to save state information at the receiving endpoint and also
 	does not wish to access state information that it has previously saved.*/
 	unsigned I:1; /**< Similarly the compressor sets the I-bit to 1 if it does not wish (or
 	no longer wishes) to access any of the locally available state items
 	offered by the receiving endpoint.*/
 	tcomp_buffer_handle_t *item; /**< The requested item feedback data */
 }
 tcomp_reqfeed_t;
 
 tcomp_reqfeed_t* tcomp_reqfeed_create();
 
 void tcomp_reqfeed_reset(tcomp_reqfeed_t*);
 
 TINYSIGCOMP_GEXTERN const tsk_object_def_t *tcomp_reqfeed_def_t;
 
 TCOMP_END_DECLS
 
 #endif /* TCOMP_REQ_FEEDBACK_H */