mirror of
https://github.com/mpv-player/mpv
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49867bd432
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@19277 b3059339-0415-0410-9bf9-f77b7e298cf2
275 lines
7.1 KiB
C
275 lines
7.1 KiB
C
/*
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This file is part of FreeSDP
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Copyright (C) 2001,2002,2003 Federico Montesino Pouzols <fedemp@altern.org>
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FreeSDP is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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Benjamin Zores, (C) 2006
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added support in parser for the a=control: lines.
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added support in parser for the a=range: lines.
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*/
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/**
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* @file priv.h
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*
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* @short Common private header for both formatting and parsing modules.
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**/
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#ifndef FSDP_PRIV_H
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#define FSDP_PRIV_H
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#define _GNU_SOURCE
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "common.h"
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#define NTP_EPOCH_OFFSET 2208988800UL
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#define FSDP_MAX_LENGTH 2000
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/* Tags for doxygen documentation */
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/**
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* @mainpage FreeSDP Library Reference Manual
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* @section overview Overview (README)
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* @verbinclude ../../README
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*
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**/
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/**
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* @example formatdemo.c
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*
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* A basic SDP descriptions formatter based on FreeSDP.
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**/
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/**
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* @example parsedemo.c
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*
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* A basic SDP descriptions parser based on FreeSDP.
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**/
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/* Private routines declarations */
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BEGIN_C_DECLS
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/**
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* @short bandwidth modifier
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*
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* Holds type of modifier and value. Also holds the literal bandwidth
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* modifier if unknown.
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**/
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typedef struct
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{
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fsdp_bw_modifier_type_t b_mod_type;
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unsigned long int b_value;
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char *b_unknown_bw_modt;
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} fsdp_bw_modifier_t;
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/**
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* @short a=rtpmap: attribute
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*
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* Holds payload type, enconding name, RTP clock rate, and encofing
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* parameters.
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**/
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typedef struct
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{
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char *pt;
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char *encoding_name;
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unsigned int clock_rate;
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char *parameters;
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} fsdp_rtpmap_t;
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/**
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* @short Connection address specification
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*
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* Holds address (unicast or multicast) as well as TTL and number of
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* ports, when it is an IP4 multicast address.
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**/
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typedef struct fsdp_connection_address_t_s
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{
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char *address;
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unsigned int address_ttl;
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unsigned int address_count;
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} fsdp_connection_address_t;
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/**
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* @short Struct for each media in a session description.
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**/
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struct fsdp_media_description_t_s
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{
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/* from `m=<media> <port> <transport> <fmt list>' line */
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fsdp_media_t media_type;
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unsigned int port;
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unsigned int port_count;
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fsdp_transport_protocol_t transport;
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char **formats;
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unsigned int formats_count;
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/* from i=<media title> */
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char *i_title;
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/* from `c=<network type> <address type> <connection address>' line
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(optional) */
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fsdp_network_type_t c_network_type;
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fsdp_address_type_t c_address_type;
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fsdp_connection_address_t c_address;
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/* from `b=<modifier>:<bandwidth-value>' lines (optional) */
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fsdp_bw_modifier_t *bw_modifiers;
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unsigned int bw_modifiers_count;
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/* from `k=<method>' or `k=<method>:<encryption key>' line
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(optional) */
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fsdp_encryption_method_t k_encryption_method;
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char *k_encryption_content;
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/* from `a=<attribute>' or `a=<attribute>:<value>' lines (opt) */
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unsigned long int a_ptime;
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unsigned long int a_maxptime;
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/* rtpmap */
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fsdp_rtpmap_t **a_rtpmaps;
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unsigned int a_rtpmaps_count;
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fsdp_orient_t a_orient;
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fsdp_sendrecv_mode_t a_sendrecv_mode;
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char **a_sdplangs;
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unsigned int a_sdplangs_count;
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char **a_langs;
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unsigned int a_langs_count;
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char **a_controls;
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unsigned int a_controls_count;
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char *a_range;
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float a_framerate;
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unsigned int a_quality;
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char **a_fmtps;
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unsigned int a_fmtps_count;
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/* rtcp attribute */
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unsigned int a_rtcp_port;
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fsdp_network_type_t a_rtcp_network_type;
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fsdp_address_type_t a_rtcp_address_type;
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char *a_rtcp_address;
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/* media attributes that are not directly supported */
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char **unidentified_attributes;
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unsigned int unidentified_attributes_count;
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};
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typedef struct fsdp_media_description_t_s fsdp_media_announcement_t;
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/**
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* @short Information for a repeat (struct for r= lines)
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**/
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typedef struct
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{
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/* times in seconds */
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unsigned long int interval;
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unsigned long int duration;
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unsigned long int *offsets;
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unsigned int offsets_count;
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} fsdp_repeat_t;
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/**
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* @short Information about a time period
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*
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* The start and stop times as well as the information from the r=
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* lines for a t= line are stored in this structures.
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**/
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typedef struct
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{
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time_t start;
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time_t stop;
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fsdp_repeat_t **repeats;
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unsigned int repeats_count;
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} fsdp_time_period_t;
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/**
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* @short Struct for session descriptions.
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**/
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struct fsdp_description_t_s
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{
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/* from v=... line */
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unsigned int version;
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/* from o=... line */
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char *o_username;
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char *o_session_id;
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char *o_announcement_version;
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fsdp_network_type_t o_network_type;
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fsdp_address_type_t o_address_type;
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char *o_address;
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/* from s=... line */
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char *s_name;
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/* from i=... line (opt) */
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char *i_information;
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/* from u=... line (opt) */
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char *u_uri;
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/* from e=... lines (0 or more) */
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const char **emails;
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unsigned int emails_count;
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/* from p=... lines (0 or more) */
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const char **phones;
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unsigned int phones_count;
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/* from `c=<network type> <address type> <connection address>' line */
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fsdp_network_type_t c_network_type;
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fsdp_address_type_t c_address_type;
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fsdp_connection_address_t c_address;
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/* from `b=<modifier>:<bandwidth-value>' lines (optional) */
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fsdp_bw_modifier_t *bw_modifiers;
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unsigned int bw_modifiers_count;
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/* from `t=<start time> <stop time>' lines (1 or more) */
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/* from `r=<repeat interval> <active duration> <list of offsets from
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start-time>' */
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fsdp_time_period_t **time_periods;
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unsigned int time_periods_count;
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/* from `z=<adjustment time> <offset> <adjustment time> <offset>
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....' lines */
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char *timezone_adj;
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/* from `k=<method>' or `k=<method>:<encryption key>' line (opt) */
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fsdp_encryption_method_t k_encryption_method;
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char *k_encryption_content;
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/* from `a=<attribute>' or `a=<attribute>:<value>' lines (opt) */
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char *a_category;
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char *a_keywords;
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char *a_tool;
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char *a_range;
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/* rtpmap */
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fsdp_rtpmap_t **a_rtpmaps;
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unsigned int a_rtpmaps_count;
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fsdp_sendrecv_mode_t a_sendrecv_mode;
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fsdp_session_type_t a_type;
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char *a_charset;
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char **a_sdplangs;
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unsigned int a_sdplangs_count;
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char **a_langs;
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unsigned int a_langs_count;
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char **a_controls;
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unsigned int a_controls_count;
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/* from `m=<media> <port>/<number of ports> <transport> <fmt list>'
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lines [one or more] */
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fsdp_media_announcement_t **media_announcements;
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unsigned int media_announcements_count;
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/* session attributes that are not directly supported */
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char **unidentified_attributes;
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unsigned int unidentified_attributes_count;
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};
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#define MEDIA_RTPMAPS_MAX_COUNT 5
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#define SDPLANGS_MAX_COUNT 5
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#define SDPCONTROLS_MAX_COUNT 10
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#define UNIDENTIFIED_ATTRIBUTES_MAX_COUNT 5
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END_C_DECLS
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#endif /* FSDP_PRIV_H */
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