mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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b6d31c1c72
Original commit message from CVS: Megapatch, changes which states are available, how they're used, and how they're set. Also modifies the scheduling system, breaking pulled buffers. Check mail archives for more details.
110 lines
2.9 KiB
C
110 lines
2.9 KiB
C
/* Gnome-Streamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_BIN_H__
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#define __GST_BIN_H__
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#include <gst/gstelement.h>
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#include <gst/gstsrc.h>
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#include <gst/gstconnection.h>
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#include <gst/cothreads.h>
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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GstElementDetails gst_bin_details;
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#define GST_TYPE_BIN \
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(gst_bin_get_type())
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#define GST_BIN(obj) \
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(GTK_CHECK_CAST((obj),GST_TYPE_BIN,GstBin))
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#define GST_BIN_CLASS(klass) \
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(GTK_CHECK_CLASS_CAST((klass),GST_TYPE_BIN,GstBinClass))
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#define GST_IS_BIN(obj) \
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(GTK_CHECK_TYPE((obj),GST_TYPE_BIN))
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#define GST_IS_BIN_CLASS(obj) \
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(GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_BIN)))
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typedef struct _GstBin GstBin;
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typedef struct _GstBinClass GstBinClass;
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struct _GstBin {
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GstElement element;
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// our children
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gint numchildren;
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GList *children;
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// iteration state
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gboolean need_cothreads;
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GList *entries;
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gint numentries;
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cothread_context *threadcontext;
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};
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struct _GstBinClass {
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GstElementClass parent_class;
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void (*object_added) (GstObject *object,GstObject *child);
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/* change the state of elements of the given type */
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gboolean (*change_state_type) (GstBin *bin,
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GstElementState state,
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GtkType type);
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/* create a plan for the execution of the bin */
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void (*create_plan) (GstBin *bin);
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/* run a full iteration of operation */
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void (*iterate) (GstBin *bin);
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};
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GtkType gst_bin_get_type(void);
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GstElement *gst_bin_new(gchar *name);
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/* add and remove elements from the bin */
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void gst_bin_add(GstBin *bin,GstElement *element);
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void gst_bin_remove(GstBin *bin,GstElement *element);
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/* retrieve a single element or the while list of children */
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GstElement *gst_bin_get_by_name(GstBin *bin,gchar *name);
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GList *gst_bin_get_list(GstBin *bin);
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/* set the state for only elements of the given type */
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gboolean gst_bin_set_state_type(GstBin *bin,
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GstElementState state,
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GtkType type);
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void gst_bin_iterate(GstBin *bin);
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void gst_bin_create_plan(GstBin *bin);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __GST_BIN_H__ */
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