From 302879cb36fe59e7341690d91e0e656b02ba07a1 Mon Sep 17 00:00:00 2001 From: Luca Abeni Date: Fri, 6 Feb 2009 10:35:52 +0000 Subject: Split rtp.h in rtp.h, rtpdec.h, and rtpenc.h Originally committed as revision 17016 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavformat/rtp.h | 161 ------------------------------------------------------ 1 file changed, 161 deletions(-) (limited to 'libavformat/rtp.h') diff --git a/libavformat/rtp.h b/libavformat/rtp.h index c66a0c7d71..834fb1b0d3 100644 --- a/libavformat/rtp.h +++ b/libavformat/rtp.h @@ -1,7 +1,6 @@ /* * RTP definitions * Copyright (c) 2002 Fabrice Bellard - * Copyright (c) 2006 Ryan Martell * * This file is part of FFmpeg. * @@ -23,65 +22,12 @@ #define AVFORMAT_RTP_H #include "libavcodec/avcodec.h" -#include "avformat.h" -/** Structure listing useful vars to parse RTP packet payload*/ -typedef struct rtp_payload_data -{ - int sizelength; - int indexlength; - int indexdeltalength; - int profile_level_id; - int streamtype; - int objecttype; - char *mode; - - /** mpeg 4 AU headers */ - struct AUHeaders { - int size; - int index; - int cts_flag; - int cts; - int dts_flag; - int dts; - int rap_flag; - int streamstate; - } *au_headers; - int nb_au_headers; - int au_headers_length_bytes; - int cur_au_index; -} RTPPayloadData; - -typedef struct PayloadContext PayloadContext; -typedef struct RTPDynamicProtocolHandler_s RTPDynamicProtocolHandler; - -#define RTP_MIN_PACKET_LENGTH 12 #define RTP_MAX_PACKET_LENGTH 1500 /* XXX: suppress this define */ -int rtp_get_codec_info(AVCodecContext *codec, int payload_type); - /** return < 0 if unknown payload type */ int rtp_get_payload_type(AVCodecContext *codec); -typedef struct RTPDemuxContext RTPDemuxContext; -RTPDemuxContext *rtp_parse_open(AVFormatContext *s1, AVStream *st, URLContext *rtpc, int payload_type, RTPPayloadData *rtp_payload_data); -void rtp_parse_set_dynamic_protocol(RTPDemuxContext *s, PayloadContext *ctx, - RTPDynamicProtocolHandler *handler); -int rtp_parse_packet(RTPDemuxContext *s, AVPacket *pkt, - const uint8_t *buf, int len); -void rtp_parse_close(RTPDemuxContext *s); - -int rtp_get_local_port(URLContext *h); -int rtp_set_remote_url(URLContext *h, const char *uri); -void rtp_get_file_handles(URLContext *h, int *prtp_fd, int *prtcp_fd); - -/** - * some rtp servers assume client is dead if they don't hear from them... - * so we send a Receiver Report to the provided ByteIO context - * (we don't have access to the rtcp handle from here) - */ -int rtp_check_and_send_back_rr(RTPDemuxContext *s, int count); - #define RTP_PT_PRIVATE 96 #define RTP_VERSION 2 #define RTP_MAX_SDES 256 /**< maximum text length for SDES */ @@ -90,111 +36,4 @@ int rtp_check_and_send_back_rr(RTPDemuxContext *s, int count); #define RTCP_TX_RATIO_NUM 5 #define RTCP_TX_RATIO_DEN 1000 -// these statistics are used for rtcp receiver reports... -typedef struct { - uint16_t max_seq; ///< highest sequence number seen - uint32_t cycles; ///< shifted count of sequence number cycles - uint32_t base_seq; ///< base sequence number - uint32_t bad_seq; ///< last bad sequence number + 1 - int probation; ///< sequence packets till source is valid - int received; ///< packets received - int expected_prior; ///< packets expected in last interval - int received_prior; ///< packets received in last interval - uint32_t transit; ///< relative transit time for previous packet - uint32_t jitter; ///< estimated jitter. -} RTPStatistics; - -/** - * Packet parsing for "private" payloads in the RTP specs. - * - * @param ctx RTSP demuxer context - * @param s stream context - * @param st stream that this packet belongs to - * @param pkt packet in which to write the parsed data - * @param timestamp pointer in which to write the timestamp of this RTP packet - * @param buf pointer to raw RTP packet data - * @param len length of buf - * @param flags flags from the RTP packet header (PKT_FLAG_*) - */ -typedef int (*DynamicPayloadPacketHandlerProc) (AVFormatContext *ctx, - PayloadContext *s, - AVStream *st, - AVPacket * pkt, - uint32_t *timestamp, - const uint8_t * buf, - int len, int flags); - -struct RTPDynamicProtocolHandler_s { - // fields from AVRtpDynamicPayloadType_s - const char enc_name[50]; /* XXX: still why 50 ? ;-) */ - enum CodecType codec_type; - enum CodecID codec_id; - - // may be null - int (*parse_sdp_a_line) (AVFormatContext *s, - int st_index, - PayloadContext *priv_data, - const char *line); ///< Parse the a= line from the sdp field - PayloadContext *(*open) (); ///< allocate any data needed by the rtp parsing for this dynamic data. - void (*close)(PayloadContext *protocol_data); ///< free any data needed by the rtp parsing for this dynamic data. - DynamicPayloadPacketHandlerProc parse_packet; ///< parse handler for this dynamic packet. - - struct RTPDynamicProtocolHandler_s *next; -}; - -// moved out of rtp.c, because the h264 decoder needs to know about this structure.. -struct RTPDemuxContext { - AVFormatContext *ic; - AVStream *st; - int payload_type; - uint32_t ssrc; - uint16_t seq; - uint32_t timestamp; - uint32_t base_timestamp; - uint32_t cur_timestamp; - int max_payload_size; - struct MpegTSContext *ts; /* only used for MP2T payloads */ - int read_buf_index; - int read_buf_size; - int num_frames; - /* used to send back RTCP RR */ - URLContext *rtp_ctx; - char hostname[256]; - - RTPStatistics statistics; ///< Statistics for this stream (used by RTCP receiver reports) - - /* rtcp sender statistics receive */ - int64_t last_rtcp_ntp_time; // TODO: move into statistics - int64_t first_rtcp_ntp_time; // TODO: move into statistics - uint32_t last_rtcp_timestamp; // TODO: move into statistics - - /* rtcp sender statistics */ - unsigned int packet_count; // TODO: move into statistics (outgoing) - unsigned int octet_count; // TODO: move into statistics (outgoing) - unsigned int last_octet_count; // TODO: move into statistics (outgoing) - int first_packet; - /* buffer for output */ - uint8_t buf[RTP_MAX_PACKET_LENGTH]; - uint8_t *buf_ptr; - - /* special infos for au headers parsing */ - RTPPayloadData *rtp_payload_data; // TODO: Move into dynamic payload handlers - - /* dynamic payload stuff */ - DynamicPayloadPacketHandlerProc parse_packet; ///< This is also copied from the dynamic protocol handler structure - PayloadContext *dynamic_protocol_context; ///< This is a copy from the values setup from the sdp parsing, in rtsp.c don't free me. - int max_frames_per_packet; -}; - -extern RTPDynamicProtocolHandler *RTPFirstDynamicPayloadHandler; -void ff_register_dynamic_payload_handler(RTPDynamicProtocolHandler *handler); - -int rtsp_next_attr_and_value(const char **p, char *attr, int attr_size, char *value, int value_size); ///< from rtsp.c, but used by rtp dynamic protocol handlers. - -void ff_rtp_send_data(AVFormatContext *s1, const uint8_t *buf1, int len, int m); -const char *ff_rtp_enc_name(int payload_type); -enum CodecID ff_rtp_codec_id(const char *buf, enum CodecType codec_type); - -void av_register_rtp_dynamic_payload_handlers(void); - #endif /* AVFORMAT_RTP_H */ -- cgit v1.2.3