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<title>GstQueueArray: GStreamer 1.0 Library Reference Manual</title>
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<link rel="home" href="index.html" title="GStreamer 1.0 Library Reference Manual">
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<link rel="up" href="gstreamer-base.html" title="GStreamer Base and Utillity Classes">
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<link rel="prev" href="gstreamer-libs-GstDataQueue.html" title="GstDataQueue">
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<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
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Description
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GstQueueArray
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GstQueueArray — Array based queue object
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Functions
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GstQueueArray *
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gst_queue_array_new ()
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void
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gst_queue_array_free ()
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guint
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gst_queue_array_get_length ()
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gpointer
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gst_queue_array_pop_head ()
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gpointer
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gst_queue_array_peek_head ()
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void
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gst_queue_array_push_tail ()
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gpointer
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gst_queue_array_pop_tail ()
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gpointer
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gst_queue_array_peek_tail ()
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gboolean
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gst_queue_array_is_empty ()
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gpointer
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gst_queue_array_drop_element ()
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guint
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gst_queue_array_find ()
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GstQueueArray *
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gst_queue_array_new_for_struct ()
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void
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gst_queue_array_push_tail_struct ()
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gpointer
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gst_queue_array_peek_head_struct ()
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gpointer
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gst_queue_array_pop_head_struct ()
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gpointer
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gst_queue_array_peek_tail_struct ()
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gpointer
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gst_queue_array_pop_tail_struct ()
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gboolean
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gst_queue_array_drop_struct ()
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Types and Values
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GstQueueArray
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Includes
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#include <gst/base/gstqueuearray.h>
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Description
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GstQueueArray is an object that provides standard queue functionality
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based on an array instead of linked lists. This reduces the overhead
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caused by memory management by a large factor.
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Functions
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gst_queue_array_new ()
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GstQueueArray *
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gst_queue_array_new (guint initial_size);
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Allocates a new GstQueueArray object with an initial
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queue size of initial_size
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[skip]
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Parameters
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initial_size
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Initial size of the new queue
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Returns
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a new GstQueueArray object
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Since: 1.2
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gst_queue_array_free ()
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void
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gst_queue_array_free (GstQueueArray *array);
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Frees queue array
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and all memory associated to it.
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Parameters
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array
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a GstQueueArray object
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Since: 1.2
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gst_queue_array_get_length ()
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guint
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gst_queue_array_get_length (GstQueueArray *array);
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Returns the length of the queue array
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array
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a GstQueueArray object
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Returns
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the length of the queue array
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Since: 1.2
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gst_queue_array_pop_head ()
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gpointer
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gst_queue_array_pop_head (GstQueueArray *array);
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Returns and head of the queue array
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and removes
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it from the queue.
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Parameters
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array
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a GstQueueArray object
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Returns
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The head of the queue
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Since: 1.2
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gst_queue_array_peek_head ()
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gpointer
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gst_queue_array_peek_head (GstQueueArray *array);
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Returns the head of the queue array
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and does not
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array
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a GstQueueArray object
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Returns
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The head of the queue
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Since: 1.2
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gst_queue_array_push_tail ()
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void
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gst_queue_array_push_tail (GstQueueArray *array,
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gpointer data);
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Pushes data
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to the tail of the queue array
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[skip]
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Parameters
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array
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a GstQueueArray object
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data
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object to push
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f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
Since: 1.2
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
gst_queue_array_pop_tail ()
|
|
Packit |
f546b1 |
gpointer
|
|
Packit |
f546b1 |
gst_queue_array_pop_tail (GstQueueArray *array);
|
|
Packit |
f546b1 |
Returns the tail of the queue array
|
|
Packit |
f546b1 |
and removes
|
|
Packit |
f546b1 |
it from the queue.
|
|
Packit |
f546b1 |
[skip]
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
Parameters
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
array
|
|
Packit |
f546b1 |
a GstQueueArray object
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
Returns
|
|
Packit |
f546b1 |
The tail of the queue
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
Since: 1.14
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
gst_queue_array_peek_tail ()
|
|
Packit |
f546b1 |
gpointer
|
|
Packit |
f546b1 |
gst_queue_array_peek_tail (GstQueueArray *array);
|
|
Packit |
f546b1 |
Returns the tail of the queue array
|
|
Packit |
f546b1 |
, but does not remove it from the queue.
|
|
Packit |
f546b1 |
[skip]
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
Parameters
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
array
|
|
Packit |
f546b1 |
a GstQueueArray object
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
Returns
|
|
Packit |
f546b1 |
The tail of the queue
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
Since: 1.14
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
gst_queue_array_is_empty ()
|
|
Packit |
f546b1 |
gboolean
|
|
Packit |
f546b1 |
gst_queue_array_is_empty (GstQueueArray *array);
|
|
Packit |
f546b1 |
Checks if the queue array
|
|
Packit |
f546b1 |
is empty.
|
|
Packit |
f546b1 |
[skip]
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
Parameters
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
array
|
|
Packit |
f546b1 |
a GstQueueArray object
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
Returns
|
|
Packit |
f546b1 |
TRUE if the queue array
|
|
Packit |
f546b1 |
is empty
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
Since: 1.2
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
gst_queue_array_drop_element ()
|
|
Packit |
f546b1 |
gpointer
|
|
Packit |
f546b1 |
gst_queue_array_drop_element (GstQueueArray *array,
|
|
Packit |
f546b1 |
guint idx);
|
|
Packit |
f546b1 |
Drops the queue element at position idx
|
|
Packit |
f546b1 |
from queue array
|
|
Packit |
f546b1 |
.
|
|
Packit |
f546b1 |
[skip]
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
Parameters
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
array
|
|
Packit |
f546b1 |
a GstQueueArray object
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
idx
|
|
Packit |
f546b1 |
index to drop
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
Returns
|
|
Packit |
f546b1 |
the dropped element
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
Since: 1.2
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
gst_queue_array_find ()
|
|
Packit |
f546b1 |
guint
|
|
Packit |
f546b1 |
gst_queue_array_find (GstQueueArray *array,
|
|
Packit |
f546b1 |
GCompareFunc func,
|
|
Packit |
f546b1 |
gpointer data);
|
|
Packit |
f546b1 |
Finds an element in the queue array
|
|
Packit |
f546b1 |
, either by comparing every element
|
|
Packit |
f546b1 |
with func
|
|
Packit |
f546b1 |
or by looking up data
|
|
Packit |
f546b1 |
if no compare function func
|
|
Packit |
f546b1 |
is provided,
|
|
Packit |
f546b1 |
and returning the index of the found element.
|
|
Packit |
f546b1 |
Note that the index is not 0-based, but an internal index number with a
|
|
Packit |
f546b1 |
random offset. The index can be used in connection with
|
|
Packit |
f546b1 |
gst_queue_array_drop_element(). FIXME: return index 0-based and make
|
|
Packit |
f546b1 |
gst_queue_array_drop_element() take a 0-based index.
|
|
Packit |
f546b1 |
[skip]
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
Parameters
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
array
|
|
Packit |
f546b1 |
a GstQueueArray object
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
func
|
|
Packit |
f546b1 |
comparison function, or NULL to find data
|
|
Packit |
f546b1 |
by value.
|
|
Packit |
f546b1 |
[allow-none]
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
data
|
|
Packit |
f546b1 |
data for comparison function
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
Returns
|
|
Packit |
f546b1 |
Index of the found element or -1 if nothing was found.
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
Since: 1.2
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
gst_queue_array_new_for_struct ()
|
|
Packit |
f546b1 |
GstQueueArray *
|
|
Packit |
f546b1 |
gst_queue_array_new_for_struct (gsize struct_size,
|
|
Packit |
f546b1 |
guint initial_size);
|
|
Packit |
f546b1 |
Allocates a new GstQueueArray object for elements (e.g. structures)
|
|
Packit |
f546b1 |
of size struct_size
|
|
Packit |
f546b1 |
, with an initial queue size of initial_size
|
|
Packit |
f546b1 |
.
|
|
Packit |
f546b1 |
[skip]
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
Parameters
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
struct_size
|
|
Packit |
f546b1 |
Size of each element (e.g. structure) in the array
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
initial_size
|
|
Packit |
f546b1 |
Initial size of the new queue
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
Returns
|
|
Packit |
f546b1 |
a new GstQueueArray object
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
Since: 1.6
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
gst_queue_array_push_tail_struct ()
|
|
Packit |
f546b1 |
void
|
|
Packit |
f546b1 |
gst_queue_array_push_tail_struct (GstQueueArray *array,
|
|
Packit |
f546b1 |
gpointer p_struct);
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
gst_queue_array_peek_head_struct ()
|
|
Packit |
f546b1 |
gpointer
|
|
Packit |
f546b1 |
gst_queue_array_peek_head_struct (GstQueueArray *array);
|
|
Packit |
f546b1 |
Returns the head of the queue array
|
|
Packit |
f546b1 |
without removing it from the queue.
|
|
Packit |
f546b1 |
[skip]
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
Parameters
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
array
|
|
Packit |
f546b1 |
a GstQueueArray object
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
Returns
|
|
Packit |
f546b1 |
pointer to element or struct, or NULL if array
|
|
Packit |
f546b1 |
was empty. The
|
|
Packit |
f546b1 |
data pointed to by the returned pointer stays valid only as long as
|
|
Packit |
f546b1 |
the queue array is not modified further!
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
Since: 1.6
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
gst_queue_array_pop_head_struct ()
|
|
Packit |
f546b1 |
gpointer
|
|
Packit |
f546b1 |
gst_queue_array_pop_head_struct (GstQueueArray *array);
|
|
Packit |
f546b1 |
Returns the head of the queue array
|
|
Packit |
f546b1 |
and removes it from the queue.
|
|
Packit |
f546b1 |
[skip]
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
Parameters
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
array
|
|
Packit |
f546b1 |
a GstQueueArray object
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
Returns
|
|
Packit |
f546b1 |
pointer to element or struct, or NULL if array
|
|
Packit |
f546b1 |
was empty. The
|
|
Packit |
f546b1 |
data pointed to by the returned pointer stays valid only as long as
|
|
Packit |
f546b1 |
the queue array is not modified further!
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
Since: 1.6
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
gst_queue_array_peek_tail_struct ()
|
|
Packit |
f546b1 |
gpointer
|
|
Packit |
f546b1 |
gst_queue_array_peek_tail_struct (GstQueueArray *array);
|
|
Packit |
f546b1 |
Returns the tail of the queue array
|
|
Packit |
f546b1 |
, but does not remove it from the queue.
|
|
Packit |
f546b1 |
[skip]
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
Parameters
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
array
|
|
Packit |
f546b1 |
a GstQueueArray object
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
Returns
|
|
Packit |
f546b1 |
The tail of the queue
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
Since: 1.14
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
gst_queue_array_pop_tail_struct ()
|
|
Packit |
f546b1 |
gpointer
|
|
Packit |
f546b1 |
gst_queue_array_pop_tail_struct (GstQueueArray *array);
|
|
Packit |
f546b1 |
Returns the tail of the queue array
|
|
Packit |
f546b1 |
and removes
|
|
Packit |
f546b1 |
it from the queue.
|
|
Packit |
f546b1 |
[skip]
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
Parameters
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
array
|
|
Packit |
f546b1 |
a GstQueueArray object
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
Returns
|
|
Packit |
f546b1 |
The tail of the queue
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
Since: 1.14
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
gst_queue_array_drop_struct ()
|
|
Packit |
f546b1 |
gboolean
|
|
Packit |
f546b1 |
gst_queue_array_drop_struct (GstQueueArray *array,
|
|
Packit |
f546b1 |
guint idx,
|
|
Packit |
f546b1 |
gpointer p_struct);
|
|
Packit |
f546b1 |
Drops the queue element at position idx
|
|
Packit |
f546b1 |
from queue array
|
|
Packit |
f546b1 |
and copies the
|
|
Packit |
f546b1 |
data of the element or structure that was removed into p_struct
|
|
Packit |
f546b1 |
if
|
|
Packit |
f546b1 |
p_struct
|
|
Packit |
f546b1 |
is set (not NULL).
|
|
Packit |
f546b1 |
[skip]
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
Parameters
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
|
Packit |
f546b1 |
|
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array
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a GstQueueArray object
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idx
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index to drop
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p_struct
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address into which to store the data of the dropped structure, or NULL
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Returns
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TRUE on success, or FALSE on error
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Since: 1.6
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Types and Values
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GstQueueArray
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typedef struct _GstQueueArray GstQueueArray;
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Generated by GTK-Doc V1.27
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</body>
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</html>
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