/**
* gst_net_client_clock_new:
* @name: a name for the clock
* @remote_address: the address of the remote clock provider
* @remote_port: the port of the remote clock provider
* @base_time: initial time of the clock
*
* Create a new #GstNetClientClock that will report the time
* provided by the #GstNetClockProvider on @remote_address and
* @remote_port.
*
* Returns: a new #GstClock that receives a time from the remote
* clock.
*/
GstClock *
gst_net_client_clock_new (gchar * name, const gchar * remote_address,
gint remote_port, GstClockTime base_time)
{
GstNetClientClock *ret;
GstClockTime internal;
g_return_val_if_fail (remote_address != NULL, NULL);
g_return_val_if_fail (remote_port > 0, NULL);
g_return_val_if_fail (remote_port <= G_MAXUINT16, NULL);
g_return_val_if_fail (base_time != GST_CLOCK_TIME_NONE, NULL);
ret = g_object_new (GST_TYPE_NET_CLIENT_CLOCK, "address", remote_address,
"port", remote_port, NULL);
/* gst_clock_get_time() values are guaranteed to be increasing. because no one
* has called get_time on this clock yet we are free to adjust to any value
* without worrying about worrying about MAX() issues with the clock's
* internal time.
*/
/* update our internal time so get_time() give something around base_time.
assume that the rate is 1 in the beginning. */
internal = gst_clock_get_internal_time (GST_CLOCK (ret));
gst_clock_set_calibration (GST_CLOCK (ret), internal, base_time, 1, 1);
{
GstClockTime now = gst_clock_get_time (GST_CLOCK (ret));
if (now < base_time || now > base_time + GST_SECOND)
g_warning ("unable to set the base time, expect sync problems!");
}
if ((ret->priv->fdset = gst_poll_new (TRUE)) == NULL)
goto no_fdset;
if (!gst_net_client_clock_start (ret))
goto failed_start;
/* all systems go, cap'n */
return (GstClock *) ret;
no_fdset:
{
GST_ERROR_OBJECT (ret, "could not create an fdset: %s (%d)",
g_strerror (errno), errno);
gst_object_unref (ret);
return NULL;
}
failed_start:
{
/* already printed a nice error */
gst_object_unref (ret);
return NULL;
}
}
/**
* gst_net_client_clock_new:
* @name: a name for the clock
* @remote_address: the address of the remote clock provider
* @remote_port: the port of the remote clock provider
* @base_time: initial time of the clock
*
* Create a new #GstNetClientClock that will report the time
* provided by the #GstNetTimeProvider on @remote_address and
* @remote_port.
*
* Returns: a new #GstClock that receives a time from the remote
* clock.
*/
GstClock *
gst_net_client_clock_new (gchar * name, const gchar * remote_address,
gint remote_port, GstClockTime base_time)
{
/* FIXME: gst_net_client_clock_new() should be a thin wrapper for g_object_new() */
GstNetClientClock *ret;
GstClockTime internal;
g_return_val_if_fail (remote_address != NULL, NULL);
g_return_val_if_fail (remote_port > 0, NULL);
g_return_val_if_fail (remote_port <= G_MAXUINT16, NULL);
g_return_val_if_fail (base_time != GST_CLOCK_TIME_NONE, NULL);
ret = g_object_new (GST_TYPE_NET_CLIENT_CLOCK, "address", remote_address,
"port", remote_port, NULL);
/* gst_clock_get_time() values are guaranteed to be increasing. because no one
* has called get_time on this clock yet we are free to adjust to any value
* without worrying about worrying about MAX() issues with the clock's
* internal time.
*/
/* update our internal time so get_time() give something around base_time.
assume that the rate is 1 in the beginning. */
internal = gst_clock_get_internal_time (GST_CLOCK (ret));
gst_clock_set_calibration (GST_CLOCK (ret), internal, base_time, 1, 1);
{
GstClockTime now = gst_clock_get_time (GST_CLOCK (ret));
if (GST_CLOCK_DIFF (now, base_time) > 0 ||
GST_CLOCK_DIFF (now, base_time + GST_SECOND) < 0) {
g_warning ("unable to set the base time, expect sync problems!");
}
}
if (!gst_net_client_clock_start (ret))
goto failed_start;
/* all systems go, cap'n */
return (GstClock *) ret;
failed_start:
{
/* already printed a nice error */
gst_object_unref (ret);
return NULL;
}
}
