PeerStreamer

/*

 * 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 FFMPEG_RTSP_H

#define FFMPEG_RTSP_H

#include <stdint.h>

#include "avformat.h"

#include "rtspcodes.h"

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);

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;

int rtsp_pause(AVFormatContext *s);

int rtsp_resume(AVFormatContext *s);

#endif /* FFMPEG_RTSP_H */