/* * Realmedia RTSP (RDT) definitions * Copyright (c) 2007 Ronald S. Bultje * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #ifndef AVFORMAT_RDT_H #define AVFORMAT_RDT_H /** * Calculate the response (RealChallenge2 in the RTSP header) to the * challenge (RealChallenge1 in the RTSP header from the Real/Helix * server), which is used as some sort of client validation. * * @param response pointer to response buffer, it should be at least 41 bytes * (40 data + 1 zero) bytes long. * @param chksum pointer to buffer containing a checksum of the response, * it should be at least 9 (8 data + 1 zero) bytes long. * @param challenge pointer to the RealChallenge1 value provided by the * server. */ void ff_rdt_calc_response_and_checksum(char response[41], char chksum[9], const char *challenge); /** * Register RDT-related dynamic payload handlers with our cache. */ void av_register_rdt_dynamic_payload_handlers(void); /** * Add subscription information to Subscribe parameter string. * * @param s RDT context * @param cmd string to write the subscription information into. * @param size size of cmd. * @param stream_nr stream number. * @param rule_nr rule number to conform to. */ void ff_rdt_subscribe_rule(RTPDemuxContext *s, char *cmd, int size, int stream_nr, int rule_nr); /** * Parse RDT-style packet data (header + media data). * Usage similar to rtp_parse_packet(). */ int ff_rdt_parse_packet(RTPDemuxContext *s, AVPacket *pkt, const uint8_t *buf, int len); #endif /* AVFORMAT_RDT_H */