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202f463170
This uses all of the netclientclock code, except for the generation and parsing of packets. Unfortunately some code duplication was necessary because GstNetTimePacket is public API and couldn't be extended easily to support NTPv4 packets without breaking API/ABI.
87 lines
2.9 KiB
C
87 lines
2.9 KiB
C
/* GStreamer
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* Copyright (C) 2005 Andy Wingo <wingo@pobox.com>
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* Copyright (C) 2015 Sebastian Dröge <sebastian@centricular.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_NTP_PACKET_H__
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#define __GST_NTP_PACKET_H__
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#include <gst/gst.h>
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#include <gio/gio.h>
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G_BEGIN_DECLS
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/**
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* GST_NTP_PACKET_SIZE:
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*
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* The size of the packets sent between NTP clocks.
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*/
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#define GST_NTP_PACKET_SIZE 48
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typedef struct _GstNtpPacket GstNtpPacket;
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/**
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* GstNtpPacket:
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* @origin_time: the time the client packet was sent for the server
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* @receive_time: the time the client packet was received
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* @transmit_time: the time the packet was sent
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* @poll_interval: maximum poll interval
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*
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* Content of a #GstNtpPacket.
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*/
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struct _GstNtpPacket {
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GstClockTime origin_time;
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GstClockTime receive_time;
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GstClockTime transmit_time;
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GstClockTime poll_interval;
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};
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GType gst_ntp_packet_get_type(void) G_GNUC_INTERNAL;
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enum {
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GST_NTP_ERROR_WRONG_VERSION,
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GST_NTP_ERROR_KOD_DENY,
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GST_NTP_ERROR_KOD_RATE,
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GST_NTP_ERROR_KOD_UNKNOWN
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};
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GQuark gst_ntp_error_quark (void) G_GNUC_INTERNAL;
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#define GST_NTP_ERROR (gst_ntp_error_quark ())
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GstNtpPacket* gst_ntp_packet_new (const guint8 *buffer,
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GError ** error) G_GNUC_INTERNAL;
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GstNtpPacket* gst_ntp_packet_copy (const GstNtpPacket *packet) G_GNUC_INTERNAL;
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void gst_ntp_packet_free (GstNtpPacket *packet) G_GNUC_INTERNAL;
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guint8* gst_ntp_packet_serialize (const GstNtpPacket *packet) G_GNUC_INTERNAL;
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GstNtpPacket* gst_ntp_packet_receive (GSocket * socket,
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GSocketAddress ** src_address,
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GError ** error) G_GNUC_INTERNAL;
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gboolean gst_ntp_packet_send (const GstNtpPacket * packet,
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GSocket * socket,
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GSocketAddress * dest_address,
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GError ** error) G_GNUC_INTERNAL;
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G_END_DECLS
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#endif /* __GST_NET_TIME_PACKET_H__ */
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