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92 lines
3.0 KiB
92 lines
3.0 KiB
/* |
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* RTP definitions |
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* Copyright (c) 2002 Fabrice Bellard. |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg 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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* FFmpeg 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 FFmpeg; 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_RTP_H |
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#define AVFORMAT_RTP_H |
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#include "libavcodec/avcodec.h" |
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#include "avformat.h" |
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/** Structure listing useful vars to parse RTP packet payload*/ |
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typedef struct rtp_payload_data |
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{ |
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int sizelength; |
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int indexlength; |
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int indexdeltalength; |
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int profile_level_id; |
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int streamtype; |
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int objecttype; |
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char *mode; |
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/** mpeg 4 AU headers */ |
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struct AUHeaders { |
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int size; |
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int index; |
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int cts_flag; |
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int cts; |
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int dts_flag; |
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int dts; |
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int rap_flag; |
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int streamstate; |
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} *au_headers; |
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int nb_au_headers; |
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int au_headers_length_bytes; |
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int cur_au_index; |
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} RTPPayloadData; |
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typedef struct PayloadContext PayloadContext; |
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typedef struct RTPDynamicProtocolHandler_s RTPDynamicProtocolHandler; |
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#define RTP_MIN_PACKET_LENGTH 12 |
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#define RTP_MAX_PACKET_LENGTH 1500 /* XXX: suppress this define */ |
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int rtp_get_codec_info(AVCodecContext *codec, int payload_type); |
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/** return < 0 if unknown payload type */ |
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int rtp_get_payload_type(AVCodecContext *codec); |
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typedef struct RTPDemuxContext RTPDemuxContext; |
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RTPDemuxContext *rtp_parse_open(AVFormatContext *s1, AVStream *st, URLContext *rtpc, int payload_type, RTPPayloadData *rtp_payload_data); |
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void rtp_parse_set_dynamic_protocol(RTPDemuxContext *s, PayloadContext *ctx, |
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RTPDynamicProtocolHandler *handler); |
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int rtp_parse_packet(RTPDemuxContext *s, AVPacket *pkt, |
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const uint8_t *buf, int len); |
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void rtp_parse_close(RTPDemuxContext *s); |
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int rtp_get_local_port(URLContext *h); |
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int rtp_set_remote_url(URLContext *h, const char *uri); |
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void rtp_get_file_handles(URLContext *h, int *prtp_fd, int *prtcp_fd); |
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/** |
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* some rtp servers assume client is dead if they don't hear from them... |
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* so we send a Receiver Report to the provided ByteIO context |
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* (we don't have access to the rtcp handle from here) |
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*/ |
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int rtp_check_and_send_back_rr(RTPDemuxContext *s, int count); |
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#define RTP_PT_PRIVATE 96 |
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#define RTP_VERSION 2 |
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#define RTP_MAX_SDES 256 /**< maximum text length for SDES */ |
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/* RTCP paquets use 0.5 % of the bandwidth */ |
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#define RTCP_TX_RATIO_NUM 5 |
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#define RTCP_TX_RATIO_DEN 1000 |
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#endif /* AVFORMAT_RTP_H */
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