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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/**
33 * emulated Flash client version - 9.0.124.2 on Linux
34 * @{
35 */
36#define RTMP_CLIENT_PLATFORM "LNX"
37#define RTMP_CLIENT_VER1 9
38#define RTMP_CLIENT_VER2 0
39#define RTMP_CLIENT_VER3 124
40#define RTMP_CLIENT_VER4 2
41/** @} */ //version defines
42
43/**
44 * Calculate HMAC-SHA2 digest for RTMP handshake packets.
45 *
46 * @param src input buffer
47 * @param len input buffer length (should be 1536)
48 * @param gap offset in buffer where 32 bytes should not be taken into account
49 * when calculating digest (since it will be used to store that digest)
50 * @param key digest key
51 * @param keylen digest key length
52 * @param dst buffer where calculated digest will be stored (32 bytes)
53 */
54int ff_rtmp_calc_digest(const uint8_t *src, int len, int gap,
55 const uint8_t *key, int keylen, uint8_t *dst);
56
57/**
58 * Calculate digest position for RTMP handshake packets.
59 *
60 * @param buf input buffer (should be 1536 bytes)
61 * @param off offset in buffer where to start calculating digest position
62 * @param mod_val value used for computing modulo
63 * @param add_val value added at the end (after computing modulo)
64 */
65int ff_rtmp_calc_digest_pos(const uint8_t *buf, int off, int mod_val,
66 int add_val);
67
68#endif /* AVFORMAT_RTMP_H */
69