1 #ifndef __RTSP_H_
2 #define __RTSP_H_
3 
4 /***************************************************************************
5  *                                  _   _ ____  _
6  *  Project                     ___| | | |  _ \| |
7  *                             / __| | | | |_) | |
8  *                            | (__| |_| |  _ <| |___
9  *                             \___|\___/|_| \_\_____|
10  *
11  * Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al.
12  *
13  * This software is licensed as described in the file COPYING, which
14  * you should have received as part of this distribution. The terms
15  * are also available at http://curl.haxx.se/docs/copyright.html.
16  *
17  * You may opt to use, copy, modify, merge, publish, distribute and/or sell
18  * copies of the Software, and permit persons to whom the Software is
19  * furnished to do so, under the terms of the COPYING file.
20  *
21  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
22  * KIND, either express or implied.
23  *
24  ***************************************************************************/
25 #ifndef CURL_DISABLE_RTSP
26 
27 extern const struct Curl_handler Curl_handler_rtsp;
28 
29 /*
30  * Parse and write out any available RTP data.
31  *
32  * nread: amount of data left after k->str. will be modified if RTP
33  *        data is parsed and k->str is moved up
34  * readmore: whether or not the RTP parser needs more data right away
35  */
36 CURLcode Curl_rtsp_rtp_readwrite(struct SessionHandle *data,
37                                  struct connectdata *conn,
38                                  ssize_t *nread,
39                                  bool *readmore);
40 
41 
42 /* protocol-specific functions set up to be called by the main engine */
43 CURLcode Curl_rtsp(struct connectdata *conn, bool *done);
44 CURLcode Curl_rtsp_done(struct connectdata *conn, CURLcode, bool premature);
45 CURLcode Curl_rtsp_connect(struct connectdata *conn, bool *done);
46 CURLcode Curl_rtsp_disconnect(struct connectdata *conn, bool dead_connection);
47 
48 CURLcode Curl_rtsp_parseheader(struct connectdata *conn, char *header);
49 bool Curl_rtsp_connisdead(struct connectdata *check);
50 
51 #else
52 /* disabled */
53 #define Curl_rtsp_connisdead(x) TRUE
54 
55 #endif /* CURL_DISABLE_RTSP */
56 
57 /*
58  * RTSP Connection data
59  *
60  * Currently, only used for tracking incomplete RTP data reads
61  */
62 struct rtsp_conn {
63   char *rtp_buf;
64   ssize_t rtp_bufsize;
65   int rtp_channel;
66 };
67 
68 /****************************************************************************
69  * RTSP unique setup
70  ***************************************************************************/
71 struct RTSP {
72   /*
73    * http_wrapper MUST be the first element of this structure for the wrap
74    * logic to work. In this way, we get a cheap polymorphism because
75    * &(data->state.proto.rtsp) == &(data->state.proto.http) per the C spec
76    *
77    * HTTP functions can safely treat this as an HTTP struct, but RTSP aware
78    * functions can also index into the later elements.
79    */
80   struct HTTP http_wrapper; /*wrap HTTP to do the heavy lifting */
81 
82   long CSeq_sent; /* CSeq of this request */
83   long CSeq_recv; /* CSeq received */
84 };
85 
86 
87 #endif /* __RTSP_H_ */
88