tcp.c File Reference

#include "avformat.h"
#include "libavutil/avassert.h"
#include "libavutil/mem.h"
#include "libavutil/parseutils.h"
#include "libavutil/opt.h"
#include "libavutil/time.h"
#include "internal.h"
#include "network.h"
#include "os_support.h"
#include "url.h"

Go to the source code of this file.

Data Structures
struct	TCPContext

Macros
#define	OFFSET(x)
#define	D   AV_OPT_FLAG_DECODING_PARAM
#define	E   AV_OPT_FLAG_ENCODING_PARAM

Functions
static int	customize_fd (void *ctx, int fd, int family)
static int	tcp_open (URLContext *h, const char *uri, int flags)
static int	tcp_accept (URLContext *s, URLContext **c)
static int	tcp_read (URLContext *h, uint8_t *buf, int size)
static int	tcp_write (URLContext *h, const uint8_t *buf, int size)
static int	tcp_shutdown (URLContext *h, int flags)
static int	tcp_close (URLContext *h)
static int	tcp_get_file_handle (URLContext *h)
static int	tcp_get_window_size (URLContext *h)

Variables
static const AVOption	options []
static const AVClass	tcp_class
const URLProtocol	ff_tcp_protocol

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

Value:

offsetof(TCPContext, x)

Definition at line 54 of file tcp.c.

D

#define D   AV_OPT_FLAG_DECODING_PARAM

Definition at line 55 of file tcp.c.

E

#define E   AV_OPT_FLAG_ENCODING_PARAM

Definition at line 56 of file tcp.c.

Function Documentation

customize_fd()

static int customize_fd ( void * ctx, int fd, int family )

static

Definition at line 80 of file tcp.c.

Referenced by ff_connect_parallel(), start_connect_attempt(), and tcp_open().

tcp_open()

static int tcp_open ( URLContext * h, const char * uri, int flags )

static

Definition at line 149 of file tcp.c.

tcp_accept()

static int tcp_accept ( URLContext * s, URLContext ** c )

static

Definition at line 251 of file tcp.c.

tcp_read()

static int tcp_read ( URLContext * h, uint8_t * buf, int size )

static

Definition at line 269 of file tcp.c.

tcp_write()

static int tcp_write ( URLContext * h, const uint8_t * buf, int size )

static

Definition at line 285 of file tcp.c.

tcp_shutdown()

static int tcp_shutdown ( URLContext * h, int flags )

static

Definition at line 299 of file tcp.c.

tcp_close()

static int tcp_close ( URLContext * h )

static

Definition at line 315 of file tcp.c.

tcp_get_file_handle()

static int tcp_get_file_handle ( URLContext * h )

static

Definition at line 322 of file tcp.c.

tcp_get_window_size()

static int tcp_get_window_size ( URLContext * h )

static

Definition at line 328 of file tcp.c.

Variable Documentation

options

const AVOption options[]

static

Initial value:

= {
    { "listen",          "Listen for incoming connections",  OFFSET(listen),         AV_OPT_TYPE_INT, { .i64 = 0 },     0,       2,       .flags = D|E },
    { "local_port",      "Local port",                                         OFFSET(local_port),     AV_OPT_TYPE_STRING, { .str = NULL },     0,       0, .flags = D|E },
    { "local_addr",      "Local address",                                      OFFSET(local_addr),     AV_OPT_TYPE_STRING, { .str = NULL },     0,       0, .flags = D|E },
    { "timeout",     "set timeout (in microseconds) of socket I/O operations", OFFSET(rw_timeout),     AV_OPT_TYPE_INT, { .i64 = -1 },         -1, INT_MAX, .flags = D|E },
    { "listen_timeout",  "Connection awaiting timeout (in milliseconds)",      OFFSET(listen_timeout), AV_OPT_TYPE_INT, { .i64 = -1 },         -1, INT_MAX, .flags = D|E },
    { "send_buffer_size", "Socket send buffer size (in bytes)",                OFFSET(send_buffer_size), AV_OPT_TYPE_INT, { .i64 = -1 },         -1, INT_MAX, .flags = D|E },
    { "recv_buffer_size", "Socket receive buffer size (in bytes)",             OFFSET(recv_buffer_size), AV_OPT_TYPE_INT, { .i64 = -1 },         -1, INT_MAX, .flags = D|E },
    { "tcp_nodelay", "Use TCP_NODELAY to disable nagle's algorithm",           OFFSET(tcp_nodelay), AV_OPT_TYPE_BOOL, { .i64 = 0 },             0, 1, .flags = D|E },
    { "tcp_keepalive", "Use TCP keepalive to detect dead connections and keep long-lived connections active.",           OFFSET(tcp_keepalive), AV_OPT_TYPE_BOOL, { .i64 = 0 },             0, 1, .flags = D|E },
 
    { "tcp_mss",     "Maximum segment size for outgoing TCP packets",          OFFSET(tcp_mss),     AV_OPT_TYPE_INT, { .i64 = -1 },         -1, INT_MAX, .flags = D|E },
 
    { NULL }
}

Definition at line 57 of file tcp.c.

tcp_class

const AVClass tcp_class

static

Initial value:

= {
    .class_name = "tcp",
    .item_name  = av_default_item_name,
    .option     = options,
    .version    = LIBAVUTIL_VERSION_INT,
}

Definition at line 73 of file tcp.c.

ff_tcp_protocol

const URLProtocol ff_tcp_protocol

Initial value:

= {
    .name                = "tcp",
    .url_open            = tcp_open,
    .url_accept          = tcp_accept,
    .url_read            = tcp_read,
    .url_write           = tcp_write,
    .url_close           = tcp_close,
    .url_get_file_handle = tcp_get_file_handle,
    .url_get_short_seek  = tcp_get_window_size,
    .url_shutdown        = tcp_shutdown,
    .priv_data_size      = sizeof(TCPContext),
    .flags               = URL_PROTOCOL_FLAG_NETWORK,
    .priv_data_class     = &tcp_class,
}

Definition at line 348 of file tcp.c.