doubango-android/tinyRTP/include/tinyrtp/rtcp/trtp_rtcp_header.h

/*
* Copyright (C) 2012 Doubango Telecom <http://www.doubango.org>
*
* Contact: Mamadou Diop <diopmamadou(at)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.
*
*/
#ifndef TINYRTP_RTCP_HEADER_H
#define TINYRTP_RTCP_HEADER_H

#include "tinyrtp_config.h"
#include "tinyrtp/rtcp/trtp_rtcp_packet.h"

#include "tsk_buffer.h"
#include "tsk_list.h"

#define TRTP_RTCP_HEADER_SIZE				4
#define TRTP_RTCP_HEADER_VERSION_DEFAULT	2

TRTP_BEGIN_DECLS

typedef struct trtp_rtcp_header_s {
    TSK_DECLARE_OBJECT;

    unsigned version:2;
    unsigned padding:1;
    unsigned rc:5;
    trtp_rtcp_packet_type_t type; /**< Packet Type on 8bits */
    uint16_t length_in_words_minus1; /**< The length of this RTCP packet in 32-bit words minus one */
    uint32_t length_in_bytes;
}
trtp_rtcp_header_t;

#define TRTP_DECLARE_RTCP_HEADER trtp_rtcp_header_t __header__
typedef tsk_list_t trtp_rtcp_headers_L_t; /**< List of @ref trtp_rtcp_header_t elements */

TINYRTP_API trtp_rtcp_header_t* trtp_rtcp_header_create_null();
TINYRTP_API trtp_rtcp_header_t* trtp_rtcp_header_create(uint8_t version, uint8_t padding, uint8_t rc, trtp_rtcp_packet_type_t type, uint16_t length_in_bytes);
TINYRTP_API int trtp_rtcp_header_serialize_to(const trtp_rtcp_header_t *self, void* data, tsk_size_t size);
TINYRTP_API trtp_rtcp_header_t* trtp_rtcp_header_deserialize(const void *data, tsk_size_t size);
TINYRTP_API int trtp_rtcp_header_deserialize_to(trtp_rtcp_header_t** self, const void *data, tsk_size_t size);

TINYRTP_GEXTERN const tsk_object_def_t *trtp_rtcp_header_def_t;

TRTP_END_DECLS

#endif /* TINYRTP_RTCP_HEADER_H */