From 20631a9c1565346c7a87d0b7a4669c1f30c92c7c Mon Sep 17 00:00:00 2001 From: Luca Abeni Date: Tue, 27 Jan 2009 12:23:16 +0000 Subject: Merge rtp_internal.h in rtp.h, and remove rtp_internal.h Originally committed as revision 16817 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavformat/rtp.h | 105 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 105 insertions(+) (limited to 'libavformat/rtp.h') diff --git a/libavformat/rtp.h b/libavformat/rtp.h index 08114c8cc5..98c2dc7b49 100644 --- a/libavformat/rtp.h +++ b/libavformat/rtp.h @@ -1,6 +1,7 @@ /* * RTP definitions * Copyright (c) 2002 Fabrice Bellard + * Copyright (c) 2006 Ryan Martell * * This file is part of FFmpeg. * @@ -89,4 +90,108 @@ 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 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) (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; + /* 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