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Data Fields
RTSPState Struct Reference

Private data for the RTSP demuxer. More...

#include <rtsp.h>

Data Fields

const AVClassclass
 Class for private options.
 
URLContextrtsp_hd
 
int nb_rtsp_streams
 number of items in the 'rtsp_streams' variable
 
struct RTSPStream ** rtsp_streams
 streams in this session
 
enum RTSPClientState state
 indicator of whether we are currently receiving data from the server.
 
int64_t seek_timestamp
 the seek value requested when calling av_seek_frame().
 
int seq
 RTSP command sequence number.
 
char session_id [512]
 copy of RTSPMessageHeader->session_id, i.e.
 
int timeout
 copy of RTSPMessageHeader->timeout, i.e.
 
int64_t last_cmd_time
 timestamp of the last RTSP command that we sent to the RTSP server.
 
enum RTSPTransport transport
 the negotiated data/packet transport protocol; e.g.
 
enum RTSPLowerTransport lower_transport
 the negotiated network layer transport protocol; e.g.
 
enum RTSPServerType server_type
 brand of server that we're talking to; e.g.
 
char real_challenge [64]
 the "RealChallenge1:" field from the server
 
char auth [128]
 plaintext authorization line (username:password)
 
HTTPAuthState auth_state
 authentication state
 
char last_reply [2048]
 The last reply of the server to a RTSP command.
 
voidcur_transport_priv
 RTSPStream->transport_priv of the last stream that we read a packet from.
 
char control_uri [1024]
 some MS RTSP streams contain a URL in the SDP that we need to use for all subsequent RTSP requests, rather than the input URI; in other cases, this is a copy of AVFormatContext->filename.
 
URLContextrtsp_hd_out
 Additional output handle, used when input and output are done separately, eg for HTTP tunneling.
 
enum RTSPControlTransport control_transport
 RTSP transport mode, such as plain or tunneled.
 
int nb_byes
 
uint8_trecvbuf
 Reusable buffer for receiving packets.
 
int lower_transport_mask
 A mask with all requested transport methods.
 
uint64_t packets
 The number of returned packets.
 
struct pollfd * p
 Polling array for udp.
 
int get_parameter_supported
 Whether the server supports the GET_PARAMETER method.
 
int initial_pause
 Do not begin to play the stream immediately.
 
int rtp_muxer_flags
 Option flags for the chained RTP muxer.
 
int accept_dynamic_rate
 Whether the server accepts the x-Dynamic-Rate header.
 
int rtsp_flags
 Various option flags for the RTSP muxer/demuxer.
 
int media_type_mask
 Mask of all requested media types.
 
int rtp_port_min
 Minimum and maximum local UDP ports.
 
int rtp_port_max
 
int initial_timeout
 Timeout to wait for incoming connections.
 
int stimeout
 timeout of socket i/o operations.
 
int reordering_queue_size
 Size of RTP packet reordering queue.
 
char * user_agent
 User-Agent string.
 
int need_subscription
 The following are used for Real stream selection.
 
enum AVDiscardreal_setup_cache
 stream setup during the last frame read.
 
enum AVDiscardreal_setup
 current stream setup.
 
char last_subscription [1024]
 the last value of the "SET_PARAMETER Subscribe:" RTSP command.
 
AVFormatContextasf_ctx
 The following are used for RTP/ASF streams.
 
uint64_t asf_pb_pos
 cache for position of the asf demuxer, since we load a new data packet in the bytecontext for each incoming RTSP packet.
 
struct MpegTSContextts
 The following are used for parsing raw mpegts in udp.
 
int recvbuf_pos
 
int recvbuf_len
 

Detailed Description

Private data for the RTSP demuxer.

Todo:
Use AVIOContext instead of URLContext

Definition at line 218 of file rtsp.h.

Field Documentation

const AVClass* RTSPState::class

Class for private options.

Definition at line 219 of file rtsp.h.

URLContext* RTSPState::rtsp_hd
int RTSPState::nb_rtsp_streams
struct RTSPStream** RTSPState::rtsp_streams
enum RTSPClientState RTSPState::state

indicator of whether we are currently receiving data from the server.

Basically this isn't more than a simple cache of the last PLAY/PAUSE command sent to the server, to make sure we don't send 2x the same unexpectedly or commands in the wrong state.

Definition at line 231 of file rtsp.h.

Referenced by ff_rtsp_parse_streaming_commands(), ff_rtsp_tcp_read_packet(), parse_command_line(), rtsp_listen(), rtsp_read_packet(), rtsp_read_pause(), rtsp_read_play(), rtsp_read_record(), rtsp_read_seek(), rtsp_read_setup(), rtsp_write_packet(), and rtsp_write_record().

int64_t RTSPState::seek_timestamp

the seek value requested when calling av_seek_frame().

This value is subsequently used as part of the "Range" parameter when emitting the RTSP PLAY command. If we are currently playing, this command is called instantly. If we are currently paused, this command is called whenever we resume playback. Either way, the value is only used once, see rtsp_read_play() and rtsp_read_seek().

Definition at line 239 of file rtsp.h.

Referenced by rtsp_read_play(), and rtsp_read_seek().

int RTSPState::seq

RTSP command sequence number.

Definition at line 241 of file rtsp.h.

Referenced by ff_rtsp_parse_streaming_commands(), rtsp_read_announce(), rtsp_read_options(), rtsp_read_record(), rtsp_read_request(), and rtsp_read_setup().

char RTSPState::session_id[512]

copy of RTSPMessageHeader->session_id, i.e.

the server-provided session identifier that the client should re-transmit in each RTSP command

Definition at line 245 of file rtsp.h.

Referenced by check_sessionid(), rtsp_read_packet(), rtsp_read_record(), rtsp_read_request(), and rtsp_read_setup().

int RTSPState::timeout

copy of RTSPMessageHeader->timeout, i.e.

the time (in seconds) that the server will go without traffic on the RTSP/TCP line before it closes the connection.

Definition at line 250 of file rtsp.h.

Referenced by rtsp_read_packet().

int64_t RTSPState::last_cmd_time

timestamp of the last RTSP command that we sent to the RTSP server.

This is used to calculate when to send dummy commands to keep the connection alive, in conjunction with timeout.

Definition at line 255 of file rtsp.h.

Referenced by rtsp_read_packet().

enum RTSPTransport RTSPState::transport

the negotiated data/packet transport protocol; e.g.

RTP or RDT

Definition at line 258 of file rtsp.h.

Referenced by ff_rtsp_open_transport_ctx(), ff_rtsp_tcp_read_packet(), ff_rtsp_undo_setup(), and rtsp_read_play().

enum RTSPLowerTransport RTSPState::lower_transport

the negotiated network layer transport protocol; e.g.

TCP or UDP uni-/multicast

Definition at line 262 of file rtsp.h.

Referenced by ff_rtsp_open_transport_ctx(), ff_rtsp_undo_setup(), rtsp_read_packet(), rtsp_read_setup(), and rtsp_write_packet().

enum RTSPServerType RTSPState::server_type

brand of server that we're talking to; e.g.

WMS, REAL or other. Detected based on the value of RTSPMessageHeader->server or the presence of RTSPMessageHeader->real_challenge

Definition at line 267 of file rtsp.h.

Referenced by ff_rtsp_setup_input_streams(), rtsp_read_packet(), rtsp_read_pause(), and rtsp_read_play().

char RTSPState::real_challenge[64]

the "RealChallenge1:" field from the server

Definition at line 270 of file rtsp.h.

Referenced by resetup_tcp().

char RTSPState::auth[128]

plaintext authorization line (username:password)

Definition at line 273 of file rtsp.h.

HTTPAuthState RTSPState::auth_state

authentication state

Definition at line 276 of file rtsp.h.

Referenced by rtsp_read_packet().

char RTSPState::last_reply[2048]

The last reply of the server to a RTSP command.

Definition at line 279 of file rtsp.h.

void* RTSPState::cur_transport_priv

RTSPStream->transport_priv of the last stream that we read a packet from.

Definition at line 283 of file rtsp.h.

int RTSPState::need_subscription

The following are used for Real stream selection.

whether we need to send a "SET_PARAMETER Subscribe:" command

Definition at line 288 of file rtsp.h.

Referenced by rtsp_read_packet(), rtsp_read_pause(), and rtsp_read_play().

enum AVDiscard* RTSPState::real_setup_cache

stream setup during the last frame read.

This is used to detect if we need to subscribe or unsubscribe to any new streams.

Definition at line 292 of file rtsp.h.

Referenced by rtsp_read_close(), rtsp_read_header(), and rtsp_read_packet().

enum AVDiscard* RTSPState::real_setup

current stream setup.

This is a temporary buffer used to compare current setup to previous frame setup.

Definition at line 296 of file rtsp.h.

Referenced by rtsp_read_close(), rtsp_read_header(), and rtsp_read_packet().

char RTSPState::last_subscription[1024]

the last value of the "SET_PARAMETER Subscribe:" RTSP command.

this is used to send the same "Unsubscribe:" if stream setup changed, before sending a new "Subscribe:" command.

Definition at line 301 of file rtsp.h.

Referenced by rtsp_read_packet().

AVFormatContext* RTSPState::asf_ctx

The following are used for RTP/ASF streams.

ASF demuxer context for the embedded ASF stream from WMS servers

Definition at line 307 of file rtsp.h.

Referenced by asfrtp_parse_packet(), asfrtp_parse_sdp_line(), ff_rtsp_close_streams(), and ff_wms_parse_sdp_a_line().

uint64_t RTSPState::asf_pb_pos

cache for position of the asf demuxer, since we load a new data packet in the bytecontext for each incoming RTSP packet.

Definition at line 311 of file rtsp.h.

Referenced by asfrtp_parse_packet(), and ff_wms_parse_sdp_a_line().

char RTSPState::control_uri[1024]

some MS RTSP streams contain a URL in the SDP that we need to use for all subsequent RTSP requests, rather than the input URI; in other cases, this is a copy of AVFormatContext->filename.

Definition at line 317 of file rtsp.h.

Referenced by ff_rtsp_setup_input_streams(), ff_rtsp_setup_output_streams(), parse_command_line(), rtsp_listen(), rtsp_read_close(), rtsp_read_packet(), rtsp_read_pause(), rtsp_read_play(), rtsp_write_close(), and rtsp_write_record().

struct MpegTSContext* RTSPState::ts

The following are used for parsing raw mpegts in udp.

Definition at line 321 of file rtsp.h.

Referenced by ff_rtsp_close_streams().

int RTSPState::recvbuf_pos

Definition at line 322 of file rtsp.h.

int RTSPState::recvbuf_len

Definition at line 323 of file rtsp.h.

URLContext* RTSPState::rtsp_hd_out

Additional output handle, used when input and output are done separately, eg for HTTP tunneling.

Definition at line 328 of file rtsp.h.

Referenced by ff_rtsp_tcp_write_packet(), rtsp_listen(), and rtsp_send_reply().

enum RTSPControlTransport RTSPState::control_transport

RTSP transport mode, such as plain or tunneled.

Definition at line 331 of file rtsp.h.

int RTSPState::nb_byes

Definition at line 336 of file rtsp.h.

Referenced by rtsp_read_play().

uint8_t* RTSPState::recvbuf

Reusable buffer for receiving packets.

Definition at line 339 of file rtsp.h.

Referenced by ff_rtsp_close_streams().

int RTSPState::lower_transport_mask

A mask with all requested transport methods.

Definition at line 344 of file rtsp.h.

Referenced by rtsp_read_packet().

uint64_t RTSPState::packets

The number of returned packets.

Definition at line 349 of file rtsp.h.

Referenced by rtsp_read_packet().

struct pollfd* RTSPState::p

Polling array for udp.

Definition at line 354 of file rtsp.h.

Referenced by ff_rtsp_close_streams().

int RTSPState::get_parameter_supported

Whether the server supports the GET_PARAMETER method.

Definition at line 359 of file rtsp.h.

Referenced by rtsp_read_packet().

int RTSPState::initial_pause

Do not begin to play the stream immediately.

Definition at line 364 of file rtsp.h.

Referenced by rtsp_read_header().

int RTSPState::rtp_muxer_flags

Option flags for the chained RTP muxer.

Definition at line 369 of file rtsp.h.

int RTSPState::accept_dynamic_rate

Whether the server accepts the x-Dynamic-Rate header.

Definition at line 372 of file rtsp.h.

int RTSPState::rtsp_flags

Various option flags for the RTSP muxer/demuxer.

Definition at line 377 of file rtsp.h.

Referenced by rtsp_read_close(), rtsp_read_header(), and rtsp_read_packet().

int RTSPState::media_type_mask

Mask of all requested media types.

Definition at line 382 of file rtsp.h.

int RTSPState::rtp_port_min

Minimum and maximum local UDP ports.

Definition at line 387 of file rtsp.h.

Referenced by rtsp_read_setup().

int RTSPState::rtp_port_max

Definition at line 387 of file rtsp.h.

Referenced by rtsp_read_setup().

int RTSPState::initial_timeout

Timeout to wait for incoming connections.

Definition at line 392 of file rtsp.h.

Referenced by rtsp_listen(), and rtsp_read_header().

int RTSPState::stimeout

timeout of socket i/o operations.

Definition at line 397 of file rtsp.h.

int RTSPState::reordering_queue_size

Size of RTP packet reordering queue.

Definition at line 402 of file rtsp.h.

Referenced by ff_rtsp_open_transport_ctx().

char* RTSPState::user_agent

User-Agent string.

Definition at line 407 of file rtsp.h.


The documentation for this struct was generated from the following file: