#include "libavcodec/avcodec.h"
#include "avformat.h"
#include "rtp.h"
#include "url.h"
#include "srtp.h"

Data Structures
struct	RTPStatistics

struct	RTPDynamicProtocolHandler

struct	RTPPacket

struct	RTPDemuxContext

Macros
#define	RTP_MIN_PACKET_LENGTH 12

#define	RTP_MAX_PACKET_LENGTH 8192

#define	RTP_REORDER_QUEUE_DEFAULT_SIZE 10

#define	RTP_NOTS_VALUE ((uint32_t)-1)

#define	RTP_FLAG_KEY 0x1
	RTP packet contains a keyframe.

#define	RTP_FLAG_MARKER 0x2
	RTP marker bit was set for this packet.

Typedefs
typedef int(*	DynamicPayloadPacketHandlerProc )(AVFormatContext ctx, PayloadContext s, AVStream st, AVPacket pkt, uint32_t timestamp, const uint8_t buf, int len, uint16_t seq, int flags)
	Packet parsing for "private" payloads in the RTP specs.

Functions
RTPDemuxContext *	ff_rtp_parse_open (AVFormatContext s1, AVStream st, int payload_type, int queue_size)
	open a new RTP parse context for stream 'st'.

void	ff_rtp_parse_set_dynamic_protocol (RTPDemuxContext s, PayloadContext ctx, RTPDynamicProtocolHandler *handler)

void	ff_rtp_parse_set_crypto (RTPDemuxContext s, const char suite, const char *params)

int	ff_rtp_parse_packet (RTPDemuxContext s, AVPacket pkt, uint8_t **buf, int len)
	Parse an RTP or RTCP packet directly sent as a buffer.

void	ff_rtp_parse_close (RTPDemuxContext *s)

int64_t	ff_rtp_queued_packet_time (RTPDemuxContext *s)

void	ff_rtp_reset_packet_queue (RTPDemuxContext *s)

void	ff_rtp_send_punch_packets (URLContext *rtp_handle)
	Send a dummy packet on both port pairs to set up the connection state in potential NAT routers, so that we're able to receive packets.

int	ff_rtp_check_and_send_back_rr (RTPDemuxContext s, URLContext fd, AVIOContext *avio, int count)
	some rtp servers assume client is dead if they don't hear from them...

int	ff_rtp_send_rtcp_feedback (RTPDemuxContext s, URLContext fd, AVIOContext *avio)

void	ff_register_dynamic_payload_handler (RTPDynamicProtocolHandler *handler)

RTPDynamicProtocolHandler *	ff_rtp_handler_find_by_name (const char *name, enum AVMediaType codec_type)

RTPDynamicProtocolHandler *	ff_rtp_handler_find_by_id (int id, enum AVMediaType codec_type)

int	ff_rtsp_next_attr_and_value (const char *p, char attr, int attr_size, char *value, int value_size)

int	ff_parse_fmtp (AVFormatContext s, AVStream stream, PayloadContext data, const char p, int(parse_fmtp)(AVFormatContext s, AVStream stream, PayloadContext data, char attr, char value))

void	ff_register_rtp_dynamic_payload_handlers (void)

int	ff_rtp_finalize_packet (AVPacket pkt, AVIOContext *dyn_buf, int stream_idx)
	Close the dynamic buffer and make a packet from it.

Macro Definition Documentation

#define RTP_MIN_PACKET_LENGTH 12

Definition at line 35 of file rtpdec.h.

#define RTP_MAX_PACKET_LENGTH 8192

Definition at line 36 of file rtpdec.h.

Referenced by rtp_parse_mp4_au(), sap_fetch_packet(), and sap_read_header().

#define RTP_REORDER_QUEUE_DEFAULT_SIZE 10

Definition at line 38 of file rtpdec.h.

Referenced by ff_rtsp_open_transport_ctx().

#define RTP_NOTS_VALUE ((uint32_t)-1)

Definition at line 40 of file rtpdec.h.

Referenced by finalize_packet(), mpegts_handle_packet(), qdm2_parse_packet(), rtp_parse_one_packet(), and store_packet().

#define RTP_FLAG_KEY 0x1

RTP packet contains a keyframe.

Definition at line 92 of file rtpdec.h.

Referenced by asfrtp_parse_packet(), ff_rdt_parse_packet(), qt_rtp_parse_packet(), and rdt_parse_packet().

#define RTP_FLAG_MARKER 0x2

RTP marker bit was set for this packet.

Definition at line 93 of file rtpdec.h.

Referenced by asfrtp_parse_packet(), h263_handle_packet(), jpeg_parse_packet(), latm_parse_packet(), qt_rtp_parse_packet(), rtp_parse_packet_internal(), and vp8_handle_packet().

Typedef Documentation

typedef int(* DynamicPayloadPacketHandlerProc)(AVFormatContext *ctx, PayloadContext *s, AVStream *st, AVPacket *pkt, uint32_t *timestamp, const uint8_t *buf, int len, uint16_t seq, int flags)

Packet parsing for "private" payloads in the RTP specs.

Parameters

ctx	RTSP demuxer context
s	stream context
st	stream that this packet belongs to
pkt	packet in which to write the parsed data
timestamp	pointer to the RTP timestamp of the input data, can be updated by the function if returning older, buffered data
buf	pointer to raw RTP packet data
len	length of buf
seq	RTP sequence number of the packet
flags	flags from the RTP packet header (RTP_FLAG_*)

Definition at line 108 of file rtpdec.h.

Function Documentation

RTPDemuxContext* ff_rtp_parse_open	(	AVFormatContext *	s1,
		AVStream *	st,
		int	payload_type,
		int	queue_size
	)

open a new RTP parse context for stream 'st'.

'st' can be NULL for MPEG2-TS streams.

Definition at line 495 of file rtpdec.c.

Referenced by ff_rtsp_open_transport_ctx().

void ff_rtp_parse_set_dynamic_protocol	(	RTPDemuxContext *	s,
		PayloadContext *	ctx,
		RTPDynamicProtocolHandler *	handler
	)

Definition at line 527 of file rtpdec.c.

Referenced by ff_rtsp_open_transport_ctx().

void ff_rtp_parse_set_crypto	(	RTPDemuxContext *	s,
		const char *	suite,
		const char *	params
	)

Definition at line 534 of file rtpdec.c.

Referenced by ff_rtsp_open_transport_ctx().

int ff_rtp_parse_packet	(	RTPDemuxContext *	s,
		AVPacket *	pkt,
		uint8_t **	bufptr,
		int	len
	)

Parse an RTP or RTCP packet directly sent as a buffer.

Parameters

s	RTP parse context.
pkt	returned packet
bufptr	pointer to the input buffer or NULL to read the next packets
len	buffer len

Returns: 0 if a packet is returned, 1 if a packet is returned and more can follow (use buf as NULL to read the next). -1 if no packet (error or no more packet).

Definition at line 816 of file rtpdec.c.

void ff_rtp_parse_close ( RTPDemuxContext * s )

Definition at line 829 of file rtpdec.c.

Referenced by ff_rtsp_undo_setup().

int64_t ff_rtp_queued_packet_time ( RTPDemuxContext * s )

Definition at line 706 of file rtpdec.c.

void ff_rtp_reset_packet_queue ( RTPDemuxContext * s )

Definition at line 663 of file rtpdec.c.

Referenced by ff_rtp_parse_close(), and rtsp_read_play().

void ff_rtp_send_punch_packets ( URLContext * rtp_handle )

Send a dummy packet on both port pairs to set up the connection state in potential NAT routers, so that we're able to receive packets.

Note, this only works if the NAT router doesn't remap ports. This isn't a standardized procedure, but it works in many cases in practice.

The same routine is used with RDT too, even if RDT doesn't use normal RTP packets otherwise.

Definition at line 359 of file rtpdec.c.

int ff_rtp_check_and_send_back_rr	(	RTPDemuxContext *	s,
		URLContext *	fd,
		AVIOContext *	avio,
		int	count
	)

some rtp servers assume client is dead if they don't hear from them...

so we send a Receiver Report to the provided URLContext or AVIOContext (we don't have access to the rtcp handle from here)

Definition at line 256 of file rtpdec.c.

int ff_rtp_send_rtcp_feedback	(	RTPDemuxContext *	s,
		URLContext *	fd,
		AVIOContext *	avio
	)

Definition at line 427 of file rtpdec.c.

void ff_register_dynamic_payload_handler ( RTPDynamicProtocolHandler * handler )

Definition at line 61 of file rtpdec.c.

Referenced by ff_register_rdt_dynamic_payload_handlers(), and ff_register_rtp_dynamic_payload_handlers().

RTPDynamicProtocolHandler* ff_rtp_handler_find_by_name	(	const char *	name,
		enum AVMediaType	codec_type
	)

Definition at line 105 of file rtpdec.c.

RTPDynamicProtocolHandler* ff_rtp_handler_find_by_id	(	int	id,
		enum AVMediaType	codec_type
	)

Definition at line 117 of file rtpdec.c.

int ff_rtsp_next_attr_and_value	(	const char **	p,
		char *	attr,
		int	attr_size,
		char *	value,
		int	value_size
	)

Referenced by ff_parse_fmtp().

int ff_parse_fmtp	(	AVFormatContext *	s,
		AVStream *	stream,
		PayloadContext *	data,
		const char *	p,
		int()(AVFormatContext s, AVStream stream, PayloadContext data, char attr, char value)	parse_fmtp
	)

Definition at line 836 of file rtpdec.c.

Referenced by amr_parse_sdp_line(), ilbc_parse_sdp_line(), latm_parse_sdp_line(), parse_h264_sdp_line(), parse_sdp_line(), and xiph_parse_sdp_line().

void ff_register_rtp_dynamic_payload_handlers ( void )

Definition at line 67 of file rtpdec.c.

Referenced by av_register_all().

int ff_rtp_finalize_packet	(	AVPacket *	pkt,
		AVIOContext **	dyn_buf,
		int	stream_idx
	)

Close the dynamic buffer and make a packet from it.

Definition at line 874 of file rtpdec.c.

Referenced by h263_handle_packet(), jpeg_parse_packet(), svq3_parse_packet(), vp8_handle_packet(), and xiph_handle_packet().

Data Structures

Macros

Typedefs

Functions

Macro Definition Documentation

Typedef Documentation

Function Documentation