xref: /third_party/curl/lib/rtsp.h (revision 13498266) 
1#ifndef HEADER_CURL_RTSP_H
2#define HEADER_CURL_RTSP_H
3/***************************************************************************
4 *                                  _   _ ____  _
5 *  Project                     ___| | | |  _ \| |
6 *                             / __| | | | |_) | |
7 *                            | (__| |_| |  _ <| |___
8 *                             \___|\___/|_| \_\_____|
9 *
10 * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
11 *
12 * This software is licensed as described in the file COPYING, which
13 * you should have received as part of this distribution. The terms
14 * are also available at https://curl.se/docs/copyright.html.
15 *
16 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
17 * copies of the Software, and permit persons to whom the Software is
18 * furnished to do so, under the terms of the COPYING file.
19 *
20 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
21 * KIND, either express or implied.
22 *
23 * SPDX-License-Identifier: curl
24 *
25 ***************************************************************************/
26#ifdef USE_HYPER
27#define CURL_DISABLE_RTSP 1
28#endif
29
30#ifndef CURL_DISABLE_RTSP
31
32extern const struct Curl_handler Curl_handler_rtsp;
33
34CURLcode Curl_rtsp_parseheader(struct Curl_easy *data, char *header);
35
36#else
37/* disabled */
38#define Curl_rtsp_parseheader(x,y) CURLE_NOT_BUILT_IN
39
40#endif /* CURL_DISABLE_RTSP */
41
42typedef enum {
43  RTP_PARSE_SKIP,
44  RTP_PARSE_CHANNEL,
45  RTP_PARSE_LEN,
46  RTP_PARSE_DATA
47} rtp_parse_st;
48/*
49 * RTSP Connection data
50 *
51 * Currently, only used for tracking incomplete RTP data reads
52 */
53struct rtsp_conn {
54  struct dynbuf buf;
55  int rtp_channel;
56  size_t rtp_len;
57  rtp_parse_st state;
58  BIT(in_header);
59};
60
61/****************************************************************************
62 * RTSP unique setup
63 ***************************************************************************/
64struct RTSP {
65  /*
66   * http_wrapper MUST be the first element of this structure for the wrap
67   * logic to work. In this way, we get a cheap polymorphism because
68   * &(data->state.proto.rtsp) == &(data->state.proto.http) per the C spec
69   *
70   * HTTP functions can safely treat this as an HTTP struct, but RTSP aware
71   * functions can also index into the later elements.
72   */
73  struct HTTP http_wrapper; /* wrap HTTP to do the heavy lifting */
74
75  long CSeq_sent; /* CSeq of this request */
76  long CSeq_recv; /* CSeq received */
77};
78
79
80#endif /* HEADER_CURL_RTSP_H */
81