www.pudn.com > ffmpeg_c.rar > rtsp.h

/* 
 * RTSP definitions 
 * Copyright (c) 2002 Fabrice Bellard. 
 * 
 * This file is part of FFmpeg. 
 * 
 * FFmpeg is free software; you can redistribute it and/or 
 * modify it under the terms of the GNU Lesser General Public 
 * License as published by the Free Software Foundation; either 
 * version 2.1 of the License, or (at your option) any later version. 
 * 
 * FFmpeg 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 
 * Lesser General Public License for more details. 
 * 
 * You should have received a copy of the GNU Lesser General Public 
 * License along with FFmpeg; if not, write to the Free Software 
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 
 */ 
#ifndef RTSP_H 
#define RTSP_H 
 
/* RTSP handling */ 
enum RTSPStatusCode { 
#define DEF(n, c, s) c = n, 
#include "rtspcodes.h" 
#undef DEF 
}; 
 
enum RTSPProtocol { 
    RTSP_PROTOCOL_RTP_UDP = 0, 
    RTSP_PROTOCOL_RTP_TCP = 1, 
    RTSP_PROTOCOL_RTP_UDP_MULTICAST = 2, 
}; 
 
#define RTSP_DEFAULT_PORT   554 
#define RTSP_MAX_TRANSPORTS 8 
#define RTSP_TCP_MAX_PACKET_SIZE 1472 
#define RTSP_DEFAULT_NB_AUDIO_CHANNELS 2 
#define RTSP_DEFAULT_AUDIO_SAMPLERATE 44100 
#define RTSP_RTP_PORT_MIN 5000 
#define RTSP_RTP_PORT_MAX 10000 
 
typedef struct RTSPTransportField { 
    int interleaved_min, interleaved_max;  /* interleave ids, if TCP transport */ 
    int port_min, port_max; /* RTP ports */ 
    int client_port_min, client_port_max; /* RTP ports */ 
    int server_port_min, server_port_max; /* RTP ports */ 
    int ttl; /* ttl value */ 
    uint32_t destination; /* destination IP address */ 
    enum RTSPProtocol protocol; 
} RTSPTransportField; 
 
typedef struct RTSPHeader { 
    int content_length; 
    enum RTSPStatusCode status_code; /* response code from server */ 
    int nb_transports; 
    /* in AV_TIME_BASE unit, AV_NOPTS_VALUE if not used */ 
    int64_t range_start, range_end; 
    RTSPTransportField transports[RTSP_MAX_TRANSPORTS]; 
    int seq; /* sequence number */ 
    char session_id[512]; 
} RTSPHeader; 
 
/* the callback can be used to extend the connection setup/teardown step */ 
enum RTSPCallbackAction { 
    RTSP_ACTION_SERVER_SETUP, 
    RTSP_ACTION_SERVER_TEARDOWN, 
    RTSP_ACTION_CLIENT_SETUP, 
    RTSP_ACTION_CLIENT_TEARDOWN, 
}; 
 
typedef struct RTSPActionServerSetup { 
    uint32_t ipaddr; 
    char transport_option[512]; 
} RTSPActionServerSetup; 
 
typedef int FFRTSPCallback(enum RTSPCallbackAction action, 
                           const char *session_id, 
                           char *buf, int buf_size, 
                           void *arg); 
 
void rtsp_set_callback(FFRTSPCallback *rtsp_cb); 
 
int rtsp_init(void); 
void rtsp_parse_line(RTSPHeader *reply, const char *buf); 
 
extern int rtsp_default_protocols; 
extern int rtsp_rtp_port_min; 
extern int rtsp_rtp_port_max; 
extern FFRTSPCallback *ff_rtsp_callback; 
extern AVInputFormat rtsp_demuxer; 
 
int rtsp_pause(AVFormatContext *s); 
int rtsp_resume(AVFormatContext *s); 
 
#endif /* RTSP_H */