3 * Copyright (c) 2002 Fabrice Bellard
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
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.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
26 #include "rtspcodes.h"
30 enum RTSPLowerTransport {
31 RTSP_LOWER_TRANSPORT_UDP = 0,
32 RTSP_LOWER_TRANSPORT_TCP = 1,
33 RTSP_LOWER_TRANSPORT_UDP_MULTICAST = 2,
35 * This is not part of public API and shouldn't be used outside of ffmpeg.
37 RTSP_LOWER_TRANSPORT_LAST
46 #define RTSP_DEFAULT_PORT 554
47 #define RTSP_MAX_TRANSPORTS 8
48 #define RTSP_TCP_MAX_PACKET_SIZE 1472
49 #define RTSP_DEFAULT_NB_AUDIO_CHANNELS 2
50 #define RTSP_DEFAULT_AUDIO_SAMPLERATE 44100
51 #define RTSP_RTP_PORT_MIN 5000
52 #define RTSP_RTP_PORT_MAX 10000
54 typedef struct RTSPTransportField {
55 int interleaved_min, interleaved_max; /**< interleave ids, if TCP transport */
56 int port_min, port_max; /**< RTP ports */
57 int client_port_min, client_port_max; /**< RTP ports */
58 int server_port_min, server_port_max; /**< RTP ports */
59 int ttl; /**< ttl value */
60 uint32_t destination; /**< destination IP address */
61 enum RTSPTransport transport;
62 enum RTSPLowerTransport lower_transport;
65 typedef struct RTSPHeader {
67 enum RTSPStatusCode status_code; /**< response code from server */
69 /** in AV_TIME_BASE unit, AV_NOPTS_VALUE if not used */
70 int64_t range_start, range_end;
71 RTSPTransportField transports[RTSP_MAX_TRANSPORTS];
72 int seq; /**< sequence number */
74 char real_challenge[64]; /**< the RealChallenge1 field from the server */
78 enum RTSPClientState {
85 RTSP_SERVER_RTP, /**< Standards-compliant RTP-server */
86 RTSP_SERVER_REAL, /**< Realmedia-style server */
87 RTSP_SERVER_WMS, /**< Windows Media server */
91 typedef struct RTSPState {
92 URLContext *rtsp_hd; /* RTSP TCP connexion handle */
94 struct RTSPStream **rtsp_streams;
96 enum RTSPClientState state;
97 int64_t seek_timestamp;
99 /* XXX: currently we use unbuffered input */
100 // ByteIOContext rtsp_gb;
101 int seq; /* RTSP command sequence number */
102 char session_id[512];
103 enum RTSPTransport transport;
104 enum RTSPLowerTransport lower_transport;
105 enum RTSPServerType server_type;
106 char last_reply[2048]; /* XXX: allocate ? */
108 int need_subscription;
109 enum AVDiscard real_setup_cache[MAX_STREAMS];
110 char last_subscription[1024];
113 typedef struct RTSPStream {
114 URLContext *rtp_handle; /* RTP stream handle */
115 void *tx_ctx; /* RTP/RDT parse context */
117 int stream_index; /* corresponding stream index, if any. -1 if none (MPEG2TS case) */
118 int interleaved_min, interleaved_max; /* interleave ids, if TCP transport */
119 char control_url[1024]; /* url for this stream (from SDP) */
121 int sdp_port; /* port (from SDP content - not used in RTSP) */
122 struct in_addr sdp_ip; /* IP address (from SDP content - not used in RTSP) */
123 int sdp_ttl; /* IP TTL (from SDP content - not used in RTSP) */
124 int sdp_payload_type; /* payload type - only used in SDP */
125 RTPPayloadData rtp_payload_data; /* rtp payload parsing infos from SDP */
127 RTPDynamicProtocolHandler *dynamic_handler; ///< Only valid if it's a dynamic protocol. (This is the handler structure)
128 PayloadContext *dynamic_protocol_context; ///< Only valid if it's a dynamic protocol. (This is any private data associated with the dynamic protocol)
132 void rtsp_parse_line(RTSPHeader *reply, const char *buf);
134 #if LIBAVFORMAT_VERSION_INT < (53 << 16)
135 extern int rtsp_default_protocols;
137 extern int rtsp_rtp_port_min;
138 extern int rtsp_rtp_port_max;
140 int rtsp_pause(AVFormatContext *s);
141 int rtsp_resume(AVFormatContext *s);
143 #endif /* FFMPEG_RTSP_H */