2 * Realmedia RTSP (RDT) definitions
3 * Copyright (c) 2007 Ronald S. Bultje <rbultje@ronald.bitfreak.net>
5 * This file is part of FFmpeg.
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.
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.
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
22 #ifndef AVFORMAT_RDT_H
23 #define AVFORMAT_RDT_H
26 * Calculate the response (RealChallenge2 in the RTSP header) to the
27 * challenge (RealChallenge1 in the RTSP header from the Real/Helix
28 * server), which is used as some sort of client validation.
30 * @param response pointer to response buffer, it should be at least 41 bytes
31 * (40 data + 1 zero) bytes long.
32 * @param chksum pointer to buffer containing a checksum of the response,
33 * it should be at least 9 (8 data + 1 zero) bytes long.
34 * @param challenge pointer to the RealChallenge1 value provided by the
37 void ff_rdt_calc_response_and_checksum(char response
[41], char chksum
[9],
38 const char *challenge
);
41 * Register RDT-related dynamic payload handlers with our cache.
43 void av_register_rdt_dynamic_payload_handlers(void);
46 * Add subscription information to Subscribe parameter string.
48 * @param s RDT context
49 * @param cmd string to write the subscription information into.
50 * @param size size of cmd.
51 * @param stream_nr stream number.
52 * @param rule_nr rule number to conform to.
54 void ff_rdt_subscribe_rule(RTPDemuxContext
*s
, char *cmd
, int size
,
55 int stream_nr
, int rule_nr
);
58 * Parse RDT-style packet data (header + media data).
59 * Usage similar to rtp_parse_packet().
61 int ff_rdt_parse_packet(RTPDemuxContext
*s
, AVPacket
*pkt
,
62 const uint8_t *buf
, int len
);
64 #endif /* AVFORMAT_RDT_H */