@@ -1147,6 +1147,12 @@ than this time interval, raise error.

 @item listen_timeout=@var{milliseconds}

 Set listen timeout, expressed in milliseconds.

+

+@item recv_buffer_size=@var{bytes}

+Set receive buffer size, expressed bytes.

+

+@item send_buffer_size=@var{bytes}

+Set send buffer size, expressed bytes.

 @end table

 The following example shows how to setup a listening TCP connection

@@ -39,6 +39,8 @@ typedef struct TCPContext {

     int open_timeout;

     int rw_timeout;

     int listen_timeout;

+    int recv_buffer_size;

+    int send_buffer_size;

 } TCPContext;

 #define OFFSET(x) offsetof(TCPContext, x)

@@ -48,6 +50,8 @@ static const AVOption options[] = {

     { "listen",          "Listen for incoming connections",  OFFSET(listen),         AV_OPT_TYPE_INT, { .i64 = 0 },     0,       2,       .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 },

     { NULL }

 };

@@ -150,6 +154,15 @@ static int tcp_open(URLContext *h, const char *uri, int flags)

     h->is_streamed = 1;

     s->fd = fd;

+    /* Set the socket's send or receive buffer sizes, if specified.

+       If unspecified or setting fails, system default is used. */

+    if (s->recv_buffer_size > 0) {

+        setsockopt (fd, SOL_SOCKET, SO_RCVBUF, &s->recv_buffer_size, sizeof (s->recv_buffer_size));

+    }

+    if (s->send_buffer_size > 0) {

+        setsockopt (fd, SOL_SOCKET, SO_SNDBUF, &s->send_buffer_size, sizeof (s->send_buffer_size));

+    }

+

     freeaddrinfo(ai);

     return 0;