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1 | /* |
2 | * RTMP definitions | |
3 | * Copyright (c) 2009 Konstantin Shishkov | |
4 | * | |
5 | * This file is part of FFmpeg. | |
6 | * | |
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. | |
11 | * | |
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. | |
16 | * | |
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 | |
20 | */ | |
21 | ||
22 | #ifndef AVFORMAT_RTMP_H | |
23 | #define AVFORMAT_RTMP_H | |
24 | ||
25 | #include "avformat.h" | |
26 | ||
27 | #define RTMP_DEFAULT_PORT 1935 | |
28 | #define RTMPS_DEFAULT_PORT 443 | |
29 | ||
30 | #define RTMP_HANDSHAKE_PACKET_SIZE 1536 | |
31 | ||
32 | #define HMAC_IPAD_VAL 0x36 | |
33 | #define HMAC_OPAD_VAL 0x5C | |
34 | ||
35 | /** | |
36 | * emulated Flash client version - 9.0.124.2 on Linux | |
37 | * @{ | |
38 | */ | |
39 | #define RTMP_CLIENT_PLATFORM "LNX" | |
40 | #define RTMP_CLIENT_VER1 9 | |
41 | #define RTMP_CLIENT_VER2 0 | |
42 | #define RTMP_CLIENT_VER3 124 | |
43 | #define RTMP_CLIENT_VER4 2 | |
44 | /** @} */ //version defines | |
45 | ||
46 | /** | |
47 | * Calculate HMAC-SHA2 digest for RTMP handshake packets. | |
48 | * | |
49 | * @param src input buffer | |
50 | * @param len input buffer length (should be 1536) | |
51 | * @param gap offset in buffer where 32 bytes should not be taken into account | |
52 | * when calculating digest (since it will be used to store that digest) | |
53 | * @param key digest key | |
54 | * @param keylen digest key length | |
55 | * @param dst buffer where calculated digest will be stored (32 bytes) | |
56 | */ | |
57 | int ff_rtmp_calc_digest(const uint8_t *src, int len, int gap, | |
58 | const uint8_t *key, int keylen, uint8_t *dst); | |
59 | ||
60 | /** | |
61 | * Calculate digest position for RTMP handshake packets. | |
62 | * | |
63 | * @param buf input buffer (should be 1536 bytes) | |
64 | * @param off offset in buffer where to start calculating digest position | |
65 | * @param mod_val value used for computing modulo | |
66 | * @param add_val value added at the end (after computing modulo) | |
67 | */ | |
68 | int ff_rtmp_calc_digest_pos(const uint8_t *buf, int off, int mod_val, | |
69 | int add_val); | |
70 | ||
71 | #endif /* AVFORMAT_RTMP_H */ |