diff options
| author | Aman Gupta <aman@tmm1.net> | 2017-11-13 12:20:18 -0800 |
|---|---|---|
| committer | Aman Gupta <aman@tmm1.net> | 2017-11-17 10:48:55 -0800 |
| commit | 80bb81a8f34729443bdbcdb3bc2c89c221291fe6 (patch) | |
| tree | 546aaf82c1ad431bfc096c6a1ea882af3b872056 | |
| parent | ce001bb8fc6677541c401a614e05e5058d58dde1 (diff) | |
| download | ffmpeg-80bb81a8f34729443bdbcdb3bc2c89c221291fe6.tar.gz | |
avformat/tcp: add option to enable TCP_NODELAY
This can reduce latency and increase throughput, particularly on high
latency networks.
Signed-off-by: Aman Gupta <aman@tmm1.net>
Reviewed-by: Jeyapal, Karthick <kjeyapal@akamai.com>
| -rw-r--r-- | doc/protocols.texi | 3 | ||||
| -rw-r--r-- | libavformat/network.h | 1 | ||||
| -rw-r--r-- | libavformat/tcp.c | 5 |
3 files changed, 9 insertions, 0 deletions
diff --git a/doc/protocols.texi b/doc/protocols.texi index a7968ff56e..4d48f8a411 100644 --- a/doc/protocols.texi +++ b/doc/protocols.texi @@ -1242,6 +1242,9 @@ Set receive buffer size, expressed bytes. @item send_buffer_size=@var{bytes} Set send buffer size, expressed bytes. + +@item tcp_nodelay=@var{1|0} +Set TCP_NODELAY to disable Nagle's algorithm. Default value is 0. @end table The following example shows how to setup a listening TCP connection diff --git a/libavformat/network.h b/libavformat/network.h index f83c796a95..b78e3ad6ed 100644 --- a/libavformat/network.h +++ b/libavformat/network.h @@ -59,6 +59,7 @@ int ff_neterrno(void); #include <sys/types.h> #include <sys/socket.h> #include <netinet/in.h> +#include <netinet/tcp.h> #include <netdb.h> #define ff_neterrno() AVERROR(errno) diff --git a/libavformat/tcp.c b/libavformat/tcp.c index 07b4ed9fa3..f3f9d4f431 100644 --- a/libavformat/tcp.c +++ b/libavformat/tcp.c @@ -41,6 +41,7 @@ typedef struct TCPContext { int listen_timeout; int recv_buffer_size; int send_buffer_size; + int tcp_nodelay; } TCPContext; #define OFFSET(x) offsetof(TCPContext, x) @@ -52,6 +53,7 @@ static const AVOption options[] = { { "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 }, { NULL } }; @@ -148,6 +150,9 @@ static int tcp_open(URLContext *h, const char *uri, int flags) if (s->send_buffer_size > 0) { setsockopt (fd, SOL_SOCKET, SO_SNDBUF, &s->send_buffer_size, sizeof (s->send_buffer_size)); } + if (s->tcp_nodelay > 0) { + setsockopt (fd, IPPROTO_TCP, TCP_NODELAY, &s->tcp_nodelay, sizeof (s->tcp_nodelay)); + } if (s->listen == 2) { // multi-client |