libavformat/rtmp.h

   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  */
  54 int 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  */
  65 int ff_rtmp_calc_digest_pos(const uint8_t *buf, int off, int mod_val,
  66                             int add_val);
  67
  68 #endif /* AVFORMAT_RTMP_H */