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1 | /* |
2 | * This file is part of DisOrder. | |
3 | * Copyright (C) 2007 Richard Kettlewell | |
4 | * | |
e7eb3a27 | 5 | * This program is free software: you can redistribute it and/or modify |
e83d0967 | 6 | * it under the terms of the GNU General Public License as published by |
e7eb3a27 | 7 | * the Free Software Foundation, either version 3 of the License, or |
e83d0967 | 8 | * (at your option) any later version. |
e7eb3a27 RK |
9 | * |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
e83d0967 | 15 | * You should have received a copy of the GNU General Public License |
e7eb3a27 | 16 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
e83d0967 | 17 | */ |
132a5a4a RK |
18 | /** @file lib/rtp.h |
19 | * @brief RTP packet header format | |
20 | * | |
21 | * See <a href="http://www.ietf.org/rfc/rfc1889.txt">RFC1889</a>. | |
22 | */ | |
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23 | |
24 | #ifndef RTP_H | |
25 | #define RTP_H | |
26 | ||
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27 | /** @brief RTP packet header format |
28 | * | |
29 | * See <a href="http://www.ietf.org/rfc/rfc1889.txt">RFC1889</a> (now obsoleted | |
30 | * by <a href="http://www.ietf.org/rfc/rfc3550.txt">RFC3550</a>). | |
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31 | * |
32 | * All values in this structure are big-endian. | |
132a5a4a | 33 | */ |
0b75463f | 34 | struct attribute((packed)) rtp_header { |
132a5a4a RK |
35 | /** @brief Version, padding, extension and CSRC |
36 | * | |
37 | * Version is bits 6 and 7; currently always 2. | |
38 | * | |
39 | * Padding is bit 5; if set frame includes padding octets. | |
40 | * | |
41 | * eXtension is bit 4; if set there is a header extension. | |
42 | * | |
43 | * CSRC Count is bits 0-3 and is the number of CSRC identifiers following the | |
44 | * header. | |
45 | */ | |
e83d0967 | 46 | uint8_t vpxcc; |
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47 | |
48 | /** @brief Marker and payload type | |
49 | * | |
50 | * Marker is bit 7. Profile-defined. | |
51 | * | |
52 | * Payload Type is bits 0-6. Profile defined. | |
53 | */ | |
e83d0967 | 54 | uint8_t mpt; |
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55 | |
56 | /** @brief Sequence number */ | |
e83d0967 | 57 | uint16_t seq; |
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58 | |
59 | /** @brief Timestamp */ | |
e83d0967 | 60 | uint32_t timestamp; |
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61 | |
62 | /** @brief Synchronization source */ | |
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63 | uint32_t ssrc; |
64 | }; | |
65 | ||
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66 | /** @brief RTP packet header format |
67 | * | |
68 | * See <a href="http://www.ietf.org/rfc/rfc1889.txt">RFC1889</a> (now obsoleted | |
69 | * by <a href="http://www.ietf.org/rfc/rfc3550.txt">RFC3550</a>). | |
70 | * | |
71 | * All values in this structure are big-endian. | |
72 | */ | |
73 | struct attribute((packed)) rtp_extension { | |
74 | /** @brief Profile-defined extension type */ | |
75 | uint16_t type; | |
76 | ||
77 | /** @brief Length of rest of extension */ | |
78 | uint16_t length; | |
79 | }; | |
80 | ||
e83d0967 RK |
81 | #endif /* RTP_H */ |
82 | ||
83 | /* | |
84 | Local Variables: | |
85 | c-basic-offset:2 | |
86 | comment-column:40 | |
87 | fill-column:79 | |
88 | indent-tabs-mode:nil | |
89 | End: | |
90 | */ |