Allow cycling between different protocols (TCP, UDP or multicast) so that if
[libav.git] / libavformat / rtsp.h
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1/*
2 * RTSP definitions
3 * Copyright (c) 2002 Fabrice Bellard.
4 *
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5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
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8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
b78e7197 10 * version 2.1 of the License, or (at your option) any later version.
1617ad97 11 *
b78e7197 12 * FFmpeg is distributed in the hope that it will be useful,
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13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
b78e7197 18 * License along with FFmpeg; if not, write to the Free Software
5509bffa 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
1617ad97 20 */
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21#ifndef FFMPEG_RTSP_H
22#define FFMPEG_RTSP_H
1617ad97 23
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24#include <stdint.h>
25#include "avformat.h"
1617ad97 26#include "rtspcodes.h"
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27
28enum RTSPProtocol {
29 RTSP_PROTOCOL_RTP_UDP = 0,
30 RTSP_PROTOCOL_RTP_TCP = 1,
31 RTSP_PROTOCOL_RTP_UDP_MULTICAST = 2,
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32 /**
33 * This is not part of public API and shouldn't be used outside of ffmpeg.
34 */
35 RTSP_PROTOCOL_RTP_LAST
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36};
37
38#define RTSP_DEFAULT_PORT 554
39#define RTSP_MAX_TRANSPORTS 8
b7b8fc34 40#define RTSP_TCP_MAX_PACKET_SIZE 1472
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41#define RTSP_DEFAULT_NB_AUDIO_CHANNELS 2
42#define RTSP_DEFAULT_AUDIO_SAMPLERATE 44100
43#define RTSP_RTP_PORT_MIN 5000
44#define RTSP_RTP_PORT_MAX 10000
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45
46typedef struct RTSPTransportField {
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47 int interleaved_min, interleaved_max; /**< interleave ids, if TCP transport */
48 int port_min, port_max; /**< RTP ports */
49 int client_port_min, client_port_max; /**< RTP ports */
50 int server_port_min, server_port_max; /**< RTP ports */
51 int ttl; /**< ttl value */
52 uint32_t destination; /**< destination IP address */
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53 enum RTSPProtocol protocol;
54} RTSPTransportField;
55
56typedef struct RTSPHeader {
57 int content_length;
37d2210a 58 enum RTSPStatusCode status_code; /**< response code from server */
1617ad97 59 int nb_transports;
37d2210a 60 /** in AV_TIME_BASE unit, AV_NOPTS_VALUE if not used */
115329f1 61 int64_t range_start, range_end;
1617ad97 62 RTSPTransportField transports[RTSP_MAX_TRANSPORTS];
37d2210a 63 int seq; /**< sequence number */
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64 char session_id[512];
65} RTSPHeader;
66
37d2210a 67/** the callback can be used to extend the connection setup/teardown step */
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68enum RTSPCallbackAction {
69 RTSP_ACTION_SERVER_SETUP,
70 RTSP_ACTION_SERVER_TEARDOWN,
71 RTSP_ACTION_CLIENT_SETUP,
72 RTSP_ACTION_CLIENT_TEARDOWN,
73};
74
75typedef struct RTSPActionServerSetup {
0c1a9eda 76 uint32_t ipaddr;
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77 char transport_option[512];
78} RTSPActionServerSetup;
79
115329f1 80typedef int FFRTSPCallback(enum RTSPCallbackAction action,
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81 const char *session_id,
82 char *buf, int buf_size,
83 void *arg);
84
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85int rtsp_init(void);
86void rtsp_parse_line(RTSPHeader *reply, const char *buf);
87
c482500f 88#if LIBAVFORMAT_VERSION_INT < (53 << 16)
1617ad97 89extern int rtsp_default_protocols;
c482500f 90#endif
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91extern int rtsp_rtp_port_min;
92extern int rtsp_rtp_port_max;
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93
94int rtsp_pause(AVFormatContext *s);
95int rtsp_resume(AVFormatContext *s);
1617ad97 96
5b21bdab 97#endif /* FFMPEG_RTSP_H */