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ffmpeg / libavformat / rtsp.h @ 25f8db58

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/*
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 * RTSP definitions
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 * Copyright (c) 2002 Fabrice Bellard.
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 *
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 * This library is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Lesser General Public
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 * License as published by the Free Software Foundation; either
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 * version 2 of the License, or (at your option) any later version.
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 *
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 * This library 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 GNU
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 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with this library; 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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 */
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#ifndef RTSP_H
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#define RTSP_H
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/* RTSP handling */
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enum RTSPStatusCode {
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#define DEF(n, c, s) c = n,
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#include "rtspcodes.h"
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#undef DEF
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};
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enum RTSPProtocol {
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    RTSP_PROTOCOL_RTP_UDP = 0,
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    RTSP_PROTOCOL_RTP_TCP = 1,
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    RTSP_PROTOCOL_RTP_UDP_MULTICAST = 2,
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};
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#define RTSP_DEFAULT_PORT   554
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#define RTSP_MAX_TRANSPORTS 8
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#define RTSP_TCP_MAX_PACKET_SIZE 1472
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#define RTSP_DEFAULT_NB_AUDIO_CHANNELS 2
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#define RTSP_DEFAULT_AUDIO_SAMPLERATE 44100
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#define RTSP_RTP_PORT_MIN 5000
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#define RTSP_RTP_PORT_MAX 10000
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typedef struct RTSPTransportField {
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    int interleaved_min, interleaved_max;  /* interleave ids, if TCP transport */
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    int port_min, port_max; /* RTP ports */
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    int client_port_min, client_port_max; /* RTP ports */
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    int server_port_min, server_port_max; /* RTP ports */
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    int ttl; /* ttl value */
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    uint32_t destination; /* destination IP address */
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    enum RTSPProtocol protocol;
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} RTSPTransportField;
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typedef struct RTSPHeader {
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    int content_length;
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    enum RTSPStatusCode status_code; /* response code from server */
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    int nb_transports;
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    /* in AV_TIME_BASE unit, AV_NOPTS_VALUE if not used */
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    int64_t range_start, range_end; 
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    RTSPTransportField transports[RTSP_MAX_TRANSPORTS];
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    int seq; /* sequence number */
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    char session_id[512];
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} RTSPHeader;
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/* the callback can be used to extend the connection setup/teardown step */
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enum RTSPCallbackAction {
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    RTSP_ACTION_SERVER_SETUP,
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    RTSP_ACTION_SERVER_TEARDOWN,
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    RTSP_ACTION_CLIENT_SETUP,
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    RTSP_ACTION_CLIENT_TEARDOWN,
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};
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typedef struct RTSPActionServerSetup {
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    uint32_t ipaddr;
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    char transport_option[512];
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} RTSPActionServerSetup;
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typedef int FFRTSPCallback(enum RTSPCallbackAction action, 
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                           const char *session_id,
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                           char *buf, int buf_size,
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                           void *arg);
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void rtsp_set_callback(FFRTSPCallback *rtsp_cb);
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int rtsp_init(void);
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void rtsp_parse_line(RTSPHeader *reply, const char *buf);
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extern int rtsp_default_protocols;
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extern int rtsp_rtp_port_min;
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extern int rtsp_rtp_port_max;
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extern FFRTSPCallback *ff_rtsp_callback;
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extern AVInputFormat rtsp_demux;
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int rtsp_pause(AVFormatContext *s);
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int rtsp_resume(AVFormatContext *s);
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#endif /* RTSP_H */