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avformat/tcp: add option to enable TCP_NODELAY

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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>
This commit is contained in:
Aman Gupta
2017-11-13 12:20:18 -08:00
parent ce001bb8fc
commit 80bb81a8f3
3 changed files with 9 additions and 0 deletions
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5
libavformat/tcp.c
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@@ -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