0e31088b6c
This function is used for calculating digest position for RTMP handshake packets. Signed-off-by: Martin Storsjö <martin@martin.st>
72 lines
2.3 KiB
C
72 lines
2.3 KiB
C
/*
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* RTMP definitions
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* Copyright (c) 2009 Kostya Shishkov
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*
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* This file is part of Libav.
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*
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* Libav is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* Libav is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with Libav; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVFORMAT_RTMP_H
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#define AVFORMAT_RTMP_H
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#include "avformat.h"
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#define RTMP_DEFAULT_PORT 1935
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#define RTMPS_DEFAULT_PORT 443
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#define RTMP_HANDSHAKE_PACKET_SIZE 1536
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#define HMAC_IPAD_VAL 0x36
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#define HMAC_OPAD_VAL 0x5C
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/**
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* emulated Flash client version - 9.0.124.2 on Linux
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* @{
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*/
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#define RTMP_CLIENT_PLATFORM "LNX"
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#define RTMP_CLIENT_VER1 9
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#define RTMP_CLIENT_VER2 0
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#define RTMP_CLIENT_VER3 124
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#define RTMP_CLIENT_VER4 2
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/** @} */ //version defines
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/**
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* Calculate HMAC-SHA2 digest for RTMP handshake packets.
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*
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* @param src input buffer
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* @param len input buffer length (should be 1536)
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* @param gap offset in buffer where 32 bytes should not be taken into account
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* when calculating digest (since it will be used to store that digest)
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* @param key digest key
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* @param keylen digest key length
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* @param dst buffer where calculated digest will be stored (32 bytes)
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*/
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int ff_rtmp_calc_digest(const uint8_t *src, int len, int gap,
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const uint8_t *key, int keylen, uint8_t *dst);
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/**
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* Calculate digest position for RTMP handshake packets.
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*
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* @param buf input buffer (should be 1536 bytes)
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* @param off offset in buffer where to start calculating digest position
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* @param mod_val value used for computing modulo
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* @param add_val value added at the end (after computing modulo)
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*/
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int ff_rtmp_calc_digest_pos(const uint8_t *buf, int off, int mod_val,
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int add_val);
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#endif /* AVFORMAT_RTMP_H */
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