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/*
Gnome-o-Phone - A program for internet telephony
Copyright (C) 1999 Roland Dreier
This program 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 2 of the License, or
(at your option) any later version.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
$Id$
*/
#ifndef _RTP_PACKET_H
#define _RTP_PACKET_H 1
#include <sys/types.h>
#include <glib.h>
#ifdef __sun
#include <sys/uio.h>
#endif
#ifdef __cplusplus
extern "C"
{
#endif
#define RTP_VERSION 2
#define RTP_HEADER_LEN 12
#define RTP_MTU 2048
typedef struct Rtp_Header *Rtp_Header;
struct Rtp_Packet_Struct
{
gpointer data;
guint data_len;
};
struct Rtp_Header
{
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
unsigned int csrc_count:4; /* CSRC count */
unsigned int extension:1; /* header extension flag */
unsigned int padding:1; /* padding flag */
unsigned int version:2; /* protocol version */
unsigned int payload_type:7; /* payload type */
unsigned int marker:1; /* marker bit */
#elif G_BYTE_ORDER == G_BIG_ENDIAN
unsigned int version:2; /* protocol version */
unsigned int padding:1; /* padding flag */
unsigned int extension:1; /* header extension flag */
unsigned int csrc_count:4; /* CSRC count */
unsigned int marker:1; /* marker bit */
unsigned int payload_type:7; /* payload type */
#else
#error "G_BYTE_ORDER should be big or little endian."
#endif
guint16 seq; /* sequence number */
guint32 timestamp; /* timestamp */
guint32 ssrc; /* synchronization source */
guint32 csrc[1]; /* optional CSRC list */
};
typedef struct Rtp_Packet_Struct *Rtp_Packet;
Rtp_Packet rtp_packet_new_take_data (gpointer data, guint data_len);
Rtp_Packet rtp_packet_new_copy_data (gpointer data, guint data_len);
Rtp_Packet rtp_packet_new_allocate (guint payload_len,
guint pad_len, guint csrc_count);
void rtp_packet_free (Rtp_Packet packet);
//Rtp_Packet rtp_packet_read(int fd, struct sockaddr *fromaddr, socklen_t *fromlen);
//void rtp_packet_send(Rtp_Packet packet, int fd, struct sockaddr *toaddr, socklen_t tolen);
guint8 rtp_packet_get_version (Rtp_Packet packet);
void rtp_packet_set_version (Rtp_Packet packet, guint8 version);
guint8 rtp_packet_get_padding (Rtp_Packet packet);
void rtp_packet_set_padding (Rtp_Packet packet, guint8 padding);
guint8 rtp_packet_get_csrc_count (Rtp_Packet packet);
guint8 rtp_packet_get_extension (Rtp_Packet packet);
void rtp_packet_set_extension (Rtp_Packet packet, guint8 extension);
void rtp_packet_set_csrc_count (Rtp_Packet packet, guint8 csrc_count);
guint8 rtp_packet_get_marker (Rtp_Packet packet);
void rtp_packet_set_marker (Rtp_Packet packet, guint8 marker);
guint8 rtp_packet_get_payload_type (Rtp_Packet packet);
void rtp_packet_set_payload_type (Rtp_Packet packet, guint8 payload_type);
guint16 rtp_packet_get_seq (Rtp_Packet packet);
void rtp_packet_set_seq (Rtp_Packet packet, guint16 seq);
guint32 rtp_packet_get_timestamp (Rtp_Packet packet);
void rtp_packet_set_timestamp (Rtp_Packet packet, guint32 timestamp);
guint32 rtp_packet_get_ssrc (Rtp_Packet packet);
void rtp_packet_set_ssrc (Rtp_Packet packet, guint32 ssrc);
guint rtp_packet_get_payload_len (Rtp_Packet packet);
gpointer rtp_packet_get_payload (Rtp_Packet packet);
guint rtp_packet_get_packet_len (Rtp_Packet packet);
#ifdef __cplusplus
}
#endif
#endif /* rtp-packet.h */
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