| 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 */ |