GStreamer 1.0 Library Reference Manual | ||||
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Top | Description |
GstNetTimePacketGstNetTimePacket — Helper structure to construct clock packets used by network clocks. |
#include <gst/net/gstnet.h> struct GstNetTimePacket; #define GST_NET_TIME_PACKET_SIZE GstNetTimePacket * gst_net_time_packet_new (const guint8 *buffer
); GstNetTimePacket * gst_net_time_packet_receive (GSocket *socket
,GSocketAddress **src_address
,GError **error
); gboolean gst_net_time_packet_send (const GstNetTimePacket *packet
,GSocket *socket
,GSocketAddress *dest_address
,GError **error
); guint8 * gst_net_time_packet_serialize (const GstNetTimePacket *packet
);
Various functions for receiving, sending an serializing GstNetTimePacket structures.
Last reviewed on 2005-11-23 (0.9.5)
struct GstNetTimePacket { GstClockTime local_time; GstClockTime remote_time; };
Content of a GstNetTimePacket.
GstClockTime |
the local time when this packet was sent |
GstClockTime |
the remote time observation |
#define GST_NET_TIME_PACKET_SIZE 16
The size of the packets sent between network clocks.
GstNetTimePacket * gst_net_time_packet_new (const guint8 *buffer
);
Creates a new GstNetTimePacket from a buffer received over the network. The
caller is responsible for ensuring that buffer
is at least
GST_NET_TIME_PACKET_SIZE bytes long.
If buffer
is NULL, the local and remote times will be set to
GST_CLOCK_TIME_NONE.
MT safe. Caller owns return value (gst_net_time_packet_free to free).
|
a buffer from which to construct the packet, or NULL. [array] |
Returns : |
The new GstNetTimePacket. |
GstNetTimePacket * gst_net_time_packet_receive (GSocket *socket
,GSocketAddress **src_address
,GError **error
);
Receives a GstNetTimePacket over a socket. Handles interrupted system calls, but otherwise returns NULL on error.
|
socket to receive the time packet on |
|
address of variable to return sender address. [out] |
|
return address for a GError, or NULL |
Returns : |
a new GstNetTimePacket, or NULL on error. Free
with gst_net_time_packet_free() when done. [transfer full]
|
gboolean gst_net_time_packet_send (const GstNetTimePacket *packet
,GSocket *socket
,GSocketAddress *dest_address
,GError **error
);
Sends a GstNetTimePacket over a socket.
MT safe.
|
the GstNetTimePacket to send |
|
socket to send the time packet on |
|
address to send the time packet to |
|
return address for a GError, or NULL |
Returns : |
TRUE if successful, FALSE in case an error occured. |
guint8 * gst_net_time_packet_serialize (const GstNetTimePacket *packet
);
Serialized a GstNetTimePacket into a newly-allocated sequence of GST_NET_TIME_PACKET_SIZE bytes, in network byte order. The value returned is suitable for passing to write(2) or sendto(2) for communication over the network.
MT safe. Caller owns return value (g_free to free).
|
the GstNetTimePacket |
Returns : |
A newly allocated sequence of GST_NET_TIME_PACKET_SIZE bytes. |