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 */ 57int 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 */ 68int ff_rtmp_calc_digest_pos(const uint8_t *buf, int off, int mod_val, 69 int add_val); 70 71#endif /* AVFORMAT_RTMP_H */ 72