rtsp.c File Reference

#include "libavutil/avassert.h"
#include "libavutil/base64.h"
#include "libavutil/avstring.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/mathematics.h"
#include "libavutil/parseutils.h"
#include "libavutil/random_seed.h"
#include "libavutil/dict.h"
#include "libavutil/opt.h"
#include "libavutil/time.h"
#include "avformat.h"
#include "avio_internal.h"
#include "internal.h"
#include "network.h"
#include "os_support.h"
#include "http.h"
#include "rtsp.h"
#include "rtpdec.h"
#include "rtpproto.h"
#include "rdt.h"
#include "rtpdec_formats.h"
#include "rtpenc_chain.h"
#include "url.h"
#include "rtpenc.h"
#include "mpegts.h"

Go to the source code of this file.

Macros
#define	POLL_TIMEOUT_MS   100
#define	READ_PACKET_TIMEOUT_S   10
#define	MAX_TIMEOUTS   READ_PACKET_TIMEOUT_S * 1000 / POLL_TIMEOUT_MS
#define	SDP_MAX_SIZE   16384
#define	RECVBUF_SIZE   10 * RTP_MAX_PACKET_LENGTH
#define	DEFAULT_REORDERING_DELAY   100000
#define	OFFSET(x)   offsetof(RTSPState, x)
#define	DEC   AV_OPT_FLAG_DECODING_PARAM
#define	ENC   AV_OPT_FLAG_ENCODING_PARAM
#define	RTSP_FLAG_OPTS(name, longname)
#define	RTSP_MEDIATYPE_OPTS(name, longname)
#define	COMMON_OPTS()

Functions
static AVDictionary *	map_to_opts (RTSPState *rt)
static void	get_word_until_chars (char *buf, int buf_size, const char *sep, const char **pp)
static void	get_word_sep (char *buf, int buf_size, const char *sep, const char **pp)
static void	get_word (char *buf, int buf_size, const char **pp)
static void	rtsp_parse_range_npt (const char *p, int64_t *start, int64_t *end)
	Parse a string p in the form of Range:npt=xx-xx, and determine the start and end time. More...
static int	get_sockaddr (AVFormatContext *s, const char *buf, struct sockaddr_storage *sock)
void	ff_rtsp_undo_setup (AVFormatContext *s, int send_packets)
	Undo the effect of ff_rtsp_make_setup_request, close the transport_priv and rtp_handle fields. More...
void	ff_rtsp_close_streams (AVFormatContext *s)
	Close and free all streams within the RTSP (de)muxer. More...
int	ff_rtsp_open_transport_ctx (AVFormatContext *s, RTSPStream *rtsp_st)
	Open RTSP transport context. More...

Variables
const AVOption	ff_rtsp_options []
static const AVOption	sdp_options []
static const AVOption	rtp_options []

Macro Definition Documentation

POLL_TIMEOUT_MS

#define POLL_TIMEOUT_MS   100

Definition at line 55 of file rtsp.c.

Referenced by ff_rtsp_open_transport_ctx().

READ_PACKET_TIMEOUT_S

#define READ_PACKET_TIMEOUT_S   10

Definition at line 56 of file rtsp.c.

MAX_TIMEOUTS

#define MAX_TIMEOUTS   READ_PACKET_TIMEOUT_S * 1000 / POLL_TIMEOUT_MS

Definition at line 57 of file rtsp.c.

Referenced by ff_rtsp_open_transport_ctx().

SDP_MAX_SIZE

#define SDP_MAX_SIZE   16384

Definition at line 58 of file rtsp.c.

Referenced by ff_rtsp_open_transport_ctx().

RECVBUF_SIZE

#define RECVBUF_SIZE   10 * RTP_MAX_PACKET_LENGTH

Definition at line 59 of file rtsp.c.

Referenced by ff_rtsp_open_transport_ctx().

DEFAULT_REORDERING_DELAY

#define DEFAULT_REORDERING_DELAY   100000

Definition at line 60 of file rtsp.c.

Referenced by ff_rtsp_open_transport_ctx().

OFFSET

#define OFFSET

(

x

)

offsetof(RTSPState, x)

Definition at line 62 of file rtsp.c.

DEC

#define DEC   AV_OPT_FLAG_DECODING_PARAM

Definition at line 63 of file rtsp.c.

ENC

#define ENC   AV_OPT_FLAG_ENCODING_PARAM

Definition at line 64 of file rtsp.c.

RTSP_FLAG_OPTS

#define RTSP_FLAG_OPTS	(		name,
			longname
	)

Value:

{ name, longname, OFFSET(rtsp_flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, DEC, "rtsp_flags" }, \
    { "filter_src", "only receive packets from the negotiated peer IP", 0, AV_OPT_TYPE_CONST, {.i64 = RTSP_FLAG_FILTER_SRC}, 0, 0, DEC, "rtsp_flags" }

Definition at line 66 of file rtsp.c.

RTSP_MEDIATYPE_OPTS

#define RTSP_MEDIATYPE_OPTS	(		name,
			longname
	)

Value:

{ name, longname, OFFSET(media_type_mask), AV_OPT_TYPE_FLAGS, { .i64 = (1 << (AVMEDIA_TYPE_SUBTITLE+1)) - 1 }, INT_MIN, INT_MAX, DEC, "allowed_media_types" }, \
    { "video", "Video", 0, AV_OPT_TYPE_CONST, {.i64 = 1 << AVMEDIA_TYPE_VIDEO}, 0, 0, DEC, "allowed_media_types" }, \
    { "audio", "Audio", 0, AV_OPT_TYPE_CONST, {.i64 = 1 << AVMEDIA_TYPE_AUDIO}, 0, 0, DEC, "allowed_media_types" }, \
    { "data", "Data", 0, AV_OPT_TYPE_CONST, {.i64 = 1 << AVMEDIA_TYPE_DATA}, 0, 0, DEC, "allowed_media_types" }, \
    { "subtitle", "Subtitle", 0, AV_OPT_TYPE_CONST, {.i64 = 1 << AVMEDIA_TYPE_SUBTITLE}, 0, 0, DEC, "allowed_media_types" }

Definition at line 70 of file rtsp.c.

COMMON_OPTS

#define COMMON_OPTS

(

)

Value:

{ "reorder_queue_size", "set number of packets to buffer for handling of reordered packets", OFFSET(reordering_queue_size), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, DEC }, \
    { "buffer_size",        "Underlying protocol send/receive buffer size",                  OFFSET(buffer_size),           AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, DEC|ENC } \

Definition at line 77 of file rtsp.c.

Function Documentation

map_to_opts()

static AVDictionary* map_to_opts ( RTSPState *  rt )

static

Definition at line 127 of file rtsp.c.

Referenced by ff_rtsp_open_transport_ctx().

get_word_until_chars()

static void get_word_until_chars ( char *  buf, int  buf_size, const char *  sep, const char **  pp  )

static

Definition at line 138 of file rtsp.c.

Referenced by get_word(), and get_word_sep().

get_word_sep()

static void get_word_sep ( char *  buf, int  buf_size, const char *  sep, const char **  pp  )

static

Definition at line 157 of file rtsp.c.

Referenced by ff_rtsp_open_transport_ctx(), get_sockaddr(), and rtsp_parse_range_npt().

get_word()

static void get_word ( char *  buf, int  buf_size, const char **  pp  )

static

Definition at line 164 of file rtsp.c.

Referenced by ff_rtsp_open_transport_ctx(), and get_sockaddr().

rtsp_parse_range_npt()

static void rtsp_parse_range_npt ( const char *  p, int64_t *  start, int64_t *  end  )

static

Parse a string p in the form of Range:npt=xx-xx, and determine the start and end time.

Used for seeking in the rtp stream.

Definition at line 173 of file rtsp.c.

Referenced by ff_rtsp_open_transport_ctx(), and get_sockaddr().

get_sockaddr()

static int get_sockaddr ( AVFormatContext *  s, const char *  buf, struct sockaddr_storage *  sock  )

static

Definition at line 195 of file rtsp.c.

Referenced by ff_rtsp_open_transport_ctx().

ff_rtsp_undo_setup()

void ff_rtsp_undo_setup	(	AVFormatContext *	s,
		int	send_packets
	)

Undo the effect of ff_rtsp_make_setup_request, close the transport_priv and rtp_handle fields.

Definition at line 731 of file rtsp.c.

Referenced by ff_rtsp_close_streams(), ff_rtsp_open_transport_ctx(), resetup_tcp(), and rtsp_write_close().

ff_rtsp_close_streams()

void ff_rtsp_close_streams

(

AVFormatContext *

s

)

Close and free all streams within the RTSP (de)muxer.

Parameters

s	RTSP (de)muxer context

Definition at line 765 of file rtsp.c.

Referenced by ff_rtsp_open_transport_ctx(), rtsp_read_close(), rtsp_read_header(), rtsp_write_close(), and rtsp_write_header().

ff_rtsp_open_transport_ctx()

int ff_rtsp_open_transport_ctx	(	AVFormatContext *	s,
		RTSPStream *	rtsp_st
	)

Open RTSP transport context.

Definition at line 801 of file rtsp.c.

Referenced by ff_rtsp_open_transport_ctx(), and rtsp_read_setup().

Variable Documentation

ff_rtsp_options

const AVOption ff_rtsp_options[]

Initial value:

= {
    { "initial_pause",  "do not start playing the stream immediately", OFFSET(initial_pause), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, DEC },
    FF_RTP_FLAG_OPTS(RTSPState, rtp_muxer_flags),
    { "rtsp_transport", "set RTSP transport protocols", OFFSET(lower_transport_mask), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, DEC|ENC, "rtsp_transport" }, 
    { "udp", "UDP", 0, AV_OPT_TYPE_CONST, {.i64 = 1 << RTSP_LOWER_TRANSPORT_UDP}, 0, 0, DEC|ENC, "rtsp_transport" }, 
    { "tcp", "TCP", 0, AV_OPT_TYPE_CONST, {.i64 = 1 << RTSP_LOWER_TRANSPORT_TCP}, 0, 0, DEC|ENC, "rtsp_transport" }, 
    { "udp_multicast", "UDP multicast", 0, AV_OPT_TYPE_CONST, {.i64 = 1 << RTSP_LOWER_TRANSPORT_UDP_MULTICAST}, 0, 0, DEC, "rtsp_transport" },
    { "http", "HTTP tunneling", 0, AV_OPT_TYPE_CONST, {.i64 = (1 << RTSP_LOWER_TRANSPORT_HTTP)}, 0, 0, DEC, "rtsp_transport" },
    RTSP_FLAG_OPTS("rtsp_flags", "set RTSP flags"),
    { "listen", "wait for incoming connections", 0, AV_OPT_TYPE_CONST, {.i64 = RTSP_FLAG_LISTEN}, 0, 0, DEC, "rtsp_flags" },
    { "prefer_tcp", "try RTP via TCP first, if available", 0, AV_OPT_TYPE_CONST, {.i64 = RTSP_FLAG_PREFER_TCP}, 0, 0, DEC|ENC, "rtsp_flags" },
    RTSP_MEDIATYPE_OPTS("allowed_media_types", "set media types to accept from the server"),
    { "min_port", "set minimum local UDP port", OFFSET(rtp_port_min), AV_OPT_TYPE_INT, {.i64 = RTSP_RTP_PORT_MIN}, 0, 65535, DEC|ENC },
    { "max_port", "set maximum local UDP port", OFFSET(rtp_port_max), AV_OPT_TYPE_INT, {.i64 = RTSP_RTP_PORT_MAX}, 0, 65535, DEC|ENC },
    { "listen_timeout", "set maximum timeout (in seconds) to wait for incoming connections (-1 is infinite, imply flag listen)", OFFSET(initial_timeout), AV_OPT_TYPE_INT, {.i64 = -1}, INT_MIN, INT_MAX, DEC },




    { "timeout", "set timeout (in microseconds) of socket TCP I/O operations", OFFSET(stimeout), AV_OPT_TYPE_INT, {.i64 = 0}, INT_MIN, INT_MAX, DEC },

    COMMON_OPTS(),
    { "user_agent", "override User-Agent header", OFFSET(user_agent), AV_OPT_TYPE_STRING, {.str = LIBAVFORMAT_IDENT}, 0, 0, DEC },



    { NULL },
}

Definition at line 82 of file rtsp.c.

sdp_options

const AVOption sdp_options[]

static

Initial value:

= {
    RTSP_FLAG_OPTS("sdp_flags", "SDP flags"),
    { "custom_io", "use custom I/O", 0, AV_OPT_TYPE_CONST, {.i64 = RTSP_FLAG_CUSTOM_IO}, 0, 0, DEC, "rtsp_flags" },
    { "rtcp_to_source", "send RTCP packets to the source address of received packets", 0, AV_OPT_TYPE_CONST, {.i64 = RTSP_FLAG_RTCP_TO_SOURCE}, 0, 0, DEC, "rtsp_flags" },
    RTSP_MEDIATYPE_OPTS("allowed_media_types", "set media types to accept from the server"),
    COMMON_OPTS(),
    { NULL },
}

Definition at line 111 of file rtsp.c.

Referenced by ff_rtsp_open_transport_ctx().

rtp_options

const AVOption rtp_options[]

static

Initial value:

= {
    RTSP_FLAG_OPTS("rtp_flags", "set RTP flags"),
    COMMON_OPTS(),
    { NULL },
}

Definition at line 120 of file rtsp.c.

Referenced by ff_rtsp_open_transport_ctx().