/* This file is part of FreeSDP Copyright (C) 2001,2002,2003 Federico Montesino Pouzols FreeSDP 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA Benjamin Zores, (C) 2006 added support in parser for the a=control: lines. added support in parser for the a=range: lines. */ /** * @file priv.h * * @short Common private header for both formatting and parsing modules. **/ #ifndef FSDP_PRIV_H #define FSDP_PRIV_H #include #include #include #include "common.h" #define NTP_EPOCH_OFFSET 2208988800UL #define FSDP_MAX_LENGTH 2000 /* Tags for doxygen documentation */ /** * @mainpage FreeSDP Library Reference Manual * @section overview Overview (README) * @verbinclude ../../README * **/ /** * @example formatdemo.c * * A basic SDP descriptions formatter based on FreeSDP. **/ /** * @example parsedemo.c * * A basic SDP descriptions parser based on FreeSDP. **/ /* Private routines declarations */ BEGIN_C_DECLS /** * @short bandwidth modifier * * Holds type of modifier and value. Also holds the literal bandwidth * modifier if unknown. **/ typedef struct { fsdp_bw_modifier_type_t b_mod_type; unsigned long int b_value; char *b_unknown_bw_modt; } fsdp_bw_modifier_t; /** * @short a=rtpmap: attribute * * Holds payload type, enconding name, RTP clock rate, and encofing * parameters. **/ typedef struct { char *pt; char *encoding_name; unsigned int clock_rate; char *parameters; } fsdp_rtpmap_t; /** * @short Connection address specification * * Holds address (unicast or multicast) as well as TTL and number of * ports, when it is an IP4 multicast address. **/ typedef struct fsdp_connection_address_t_s { char *address; unsigned int address_ttl; unsigned int address_count; } fsdp_connection_address_t; /** * @short Struct for each media in a session description. **/ struct fsdp_media_description_t_s { /* from `m= ' line */ fsdp_media_t media_type; unsigned int port; unsigned int port_count; fsdp_transport_protocol_t transport; char **formats; unsigned int formats_count; /* from i= */ char *i_title; /* from `c=
' line (optional) */ fsdp_network_type_t c_network_type; fsdp_address_type_t c_address_type; fsdp_connection_address_t c_address; /* from `b=:' lines (optional) */ fsdp_bw_modifier_t *bw_modifiers; unsigned int bw_modifiers_count; /* from `k=' or `k=:' line (optional) */ fsdp_encryption_method_t k_encryption_method; char *k_encryption_content; /* from `a=' or `a=:' lines (opt) */ unsigned long int a_ptime; unsigned long int a_maxptime; /* rtpmap */ fsdp_rtpmap_t **a_rtpmaps; unsigned int a_rtpmaps_count; fsdp_orient_t a_orient; fsdp_sendrecv_mode_t a_sendrecv_mode; char **a_sdplangs; unsigned int a_sdplangs_count; char **a_langs; unsigned int a_langs_count; char **a_controls; unsigned int a_controls_count; char *a_range; float a_framerate; unsigned int a_quality; char **a_fmtps; unsigned int a_fmtps_count; /* rtcp attribute */ unsigned int a_rtcp_port; fsdp_network_type_t a_rtcp_network_type; fsdp_address_type_t a_rtcp_address_type; char *a_rtcp_address; /* media attributes that are not directly supported */ char **unidentified_attributes; unsigned int unidentified_attributes_count; }; typedef struct fsdp_media_description_t_s fsdp_media_announcement_t; /** * @short Information for a repeat (struct for r= lines) **/ typedef struct { /* times in seconds */ unsigned long int interval; unsigned long int duration; unsigned long int *offsets; unsigned int offsets_count; } fsdp_repeat_t; /** * @short Information about a time period * * The start and stop times as well as the information from the r= * lines for a t= line are stored in this structures. **/ typedef struct { time_t start; time_t stop; fsdp_repeat_t **repeats; unsigned int repeats_count; } fsdp_time_period_t; /** * @short Struct for session descriptions. **/ struct fsdp_description_t_s { /* from v=... line */ unsigned int version; /* from o=... line */ char *o_username; char *o_session_id; char *o_announcement_version; fsdp_network_type_t o_network_type; fsdp_address_type_t o_address_type; char *o_address; /* from s=... line */ char *s_name; /* from i=... line (opt) */ char *i_information; /* from u=... line (opt) */ char *u_uri; /* from e=... lines (0 or more) */ const char **emails; unsigned int emails_count; /* from p=... lines (0 or more) */ const char **phones; unsigned int phones_count; /* from `c=
' line */ fsdp_network_type_t c_network_type; fsdp_address_type_t c_address_type; fsdp_connection_address_t c_address; /* from `b=:' lines (optional) */ fsdp_bw_modifier_t *bw_modifiers; unsigned int bw_modifiers_count; /* from `t= ' lines (1 or more) */ /* from `r= ' */ fsdp_time_period_t **time_periods; unsigned int time_periods_count; /* from `z= ....' lines */ char *timezone_adj; /* from `k=' or `k=:' line (opt) */ fsdp_encryption_method_t k_encryption_method; char *k_encryption_content; /* from `a=' or `a=:' lines (opt) */ char *a_category; char *a_keywords; char *a_tool; char *a_range; /* rtpmap */ fsdp_rtpmap_t **a_rtpmaps; unsigned int a_rtpmaps_count; fsdp_sendrecv_mode_t a_sendrecv_mode; fsdp_session_type_t a_type; char *a_charset; char **a_sdplangs; unsigned int a_sdplangs_count; char **a_langs; unsigned int a_langs_count; char **a_controls; unsigned int a_controls_count; /* from `m= / ' lines [one or more] */ fsdp_media_announcement_t **media_announcements; unsigned int media_announcements_count; /* session attributes that are not directly supported */ char **unidentified_attributes; unsigned int unidentified_attributes_count; }; #define MEDIA_RTPMAPS_MAX_COUNT 5 #define SDPLANGS_MAX_COUNT 5 #define SDPCONTROLS_MAX_COUNT 10 #define UNIDENTIFIED_ATTRIBUTES_MAX_COUNT 5 END_C_DECLS #endif /* FSDP_PRIV_H */