gstreamer/plugins/elements/gstmultiqueue.h

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libs/gst/base/: New GstDataQueue object for threadsafe queueing. Most useful for elements that need some queueing fun... Original commit message from CVS: * libs/gst/base/Makefile.am: * libs/gst/base/gstdataqueue.c: (gst_data_queue_get_type), (gst_data_queue_base_init), (gst_data_queue_class_init), (gst_data_queue_init), (gst_data_queue_new), (gst_data_queue_cleanup), (gst_data_queue_finalize), (gst_data_queue_locked_flush), (gst_data_queue_locked_is_empty), (gst_data_queue_locked_is_full), (gst_data_queue_flush), (gst_data_queue_is_empty), (gst_data_queue_is_full), (gst_data_queue_set_flushing), (gst_data_queue_push), (gst_data_queue_pop), (gst_data_queue_drop_head), (gst_data_queue_set_property), (gst_data_queue_get_property): * libs/gst/base/gstdataqueue.h: New GstDataQueue object for threadsafe queueing. Most useful for elements that need some queueing functionnality. * docs/libs/gstreamer-libs-docs.sgml: * docs/libs/gstreamer-libs-sections.txt: Insert documentation for GstDataQueue * plugins/elements/Makefile.am: * plugins/elements/gstelements.c: * plugins/elements/gstmultiqueue.c: (gst_multi_queue_base_init), (gst_multi_queue_class_init), (gst_multi_queue_init), (gst_multi_queue_finalize), (gst_multi_queue_set_property), (gst_multi_queue_get_property), (gst_multi_queue_request_new_pad), (gst_multi_queue_release_pad), (gst_single_queue_push_one), (gst_multi_queue_item_destroy), (gst_multi_queue_item_new), (gst_multi_queue_loop), (gst_multi_queue_chain), (gst_multi_queue_sink_activate_push), (gst_multi_queue_sink_event), (gst_multi_queue_getcaps), (gst_multi_queue_bufferalloc), (gst_multi_queue_src_activate_push), (gst_multi_queue_acceptcaps), (gst_multi_queue_src_event), (gst_multi_queue_src_query), (wake_up_next_non_linked), (compute_next_non_linked), (single_queue_overrun_cb), (single_queue_underrun_cb), (single_queue_check_full), (gst_single_queue_new): * plugins/elements/gstmultiqueue.h: New multiqueue element, using GstDataQueue. Used for queuing multiple streams. Closes #344639 and #347785
2006-11-28 12:07:06 +00:00
/* GStreamer
* Copyright (C) 2006 Edward Hervey <edward@fluendo.com>
*
* gstmultiqueue.h:
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GST_MULTI_QUEUE_H__
#define __GST_MULTI_QUEUE_H__
#include <gst/gst.h>
#include <gst/base/gstdataqueue.h>
G_BEGIN_DECLS
#define GST_TYPE_MULTI_QUEUE \
(gst_multi_queue_get_type())
#define GST_MULTI_QUEUE(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_MULTI_QUEUE,GstMultiQueue))
#define GST_MULTI_QUEUE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_MULTI_QUEUE,GstMultiQueueClass))
#define GST_IS_MULTI_QUEUE(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_MULTI_QUEUE))
#define GST_IS_MULTI_QUEUE_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_MULTI_QUEUE))
typedef struct _GstMultiQueue GstMultiQueue;
typedef struct _GstMultiQueueClass GstMultiQueueClass;
/**
* GstMultiQueue:
*
* Opaque #GstMultiQueue structure.
*/
struct _GstMultiQueue {
GstElement element;
/* number of queues */
guint nbqueues;
/* The list of individual queues */
GList *queues;
GstDataQueueSize max_size, extra_size;
guint32 counter; /* incoming object counter */
guint32 highid; /* contains highest id of last outputted object */
GMutex * qlock; /* Global queue lock (vs object lock or individual */
/* queues lock). Protects nbqueues, queues, global */
/* GstMultiQueueSize, counter and highid */
gint nextnotlinked; /* ID of the next queue not linked (-1 : none) */
gpointer _gst_reserved[GST_PADDING_LARGE];
};
struct _GstMultiQueueClass {
GstElementClass parent_class;
/* signals emitted when ALL queues are either full or empty */
void (*underrun) (GstMultiQueue *queue);
void (*overrun) (GstMultiQueue *queue);
gpointer _gst_reserved[GST_PADDING_LARGE];
};
GType gst_multi_queue_get_type (void);
G_END_DECLS
#endif /* __GST_MULTI_QUEUE_H__ */