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c2f41a8906
Original commit message from CVS: Next big merge. Added GstBus for mainloop integration. Added GstMessage for sending notifications on the bus. Added GstTask as an abstraction for pipeline entry points. Removed GstThread. Removed Schedulers. Simplified GstQueue for multithreaded core. Made _link threadsafe, removed old capsnego. Added STREAM_LOCK and PREROLL_LOCK in GstPad. Added pad blocking functions. Reworked scheduling functions in GstPad to prepare for scheduling updates soon. Moved events out of data stream. Simplified GstEvent types. Added return values to push/pull. Removed clocking from GstElement. Added prototypes for state change function for next merge. Removed iterate from bins and state change management. Fixed some elements, disabled others for now. Fixed -inspect and -launch. Added check for GstBus.
150 lines
6.9 KiB
C
150 lines
6.9 KiB
C
/* GStreamer
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* Copyright (C) 2003 David A. Schleef <ds@schleef.org>
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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_STRUCTURE_H__
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#define __GST_STRUCTURE_H__
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#include <gst/gstconfig.h>
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#include <gst/gsttypes.h>
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#include <glib-object.h>
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G_BEGIN_DECLS
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#define GST_TYPE_STRUCTURE (gst_structure_get_type ())
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#define GST_STRUCTURE(object) ((GstStructure *)(object))
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#define GST_IS_STRUCTURE(object) ((object) && (GST_STRUCTURE(object)->type == GST_TYPE_STRUCTURE))
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typedef struct _GstStructure GstStructure;
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typedef gboolean (*GstStructureForeachFunc) (GQuark field_id,
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const GValue * value,
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gpointer user_data);
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typedef gboolean (*GstStructureMapFunc) (GQuark field_id,
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GValue * value,
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gpointer user_data);
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struct _GstStructure {
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GType type;
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/*< private >*/
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GQuark name;
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/* owned by parent structure, NULL if no parent */
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GstAtomicInt *parent_refcount;
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GArray *fields;
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gpointer _gst_reserved[GST_PADDING];
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};
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GType gst_structure_get_type (void);
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GstStructure * gst_structure_empty_new (const gchar * name);
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GstStructure * gst_structure_id_empty_new (GQuark quark);
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GstStructure * gst_structure_new (const gchar * name,
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const gchar * firstfield,
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...);
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GstStructure * gst_structure_new_valist (const gchar * name,
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const gchar * firstfield,
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va_list varargs);
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GstStructure * gst_structure_copy (const GstStructure *structure);
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void gst_structure_set_parent_refcount (GstStructure *structure,
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GstAtomicInt *refcount);
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void gst_structure_free (GstStructure *structure);
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G_CONST_RETURN gchar * gst_structure_get_name (const GstStructure *structure);
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GQuark gst_structure_get_name_id (const GstStructure *structure);
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void gst_structure_set_name (GstStructure *structure,
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const gchar *name);
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void gst_structure_id_set_value (GstStructure *structure,
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GQuark field,
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const GValue *value);
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void gst_structure_set_value (GstStructure *structure,
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const gchar *fieldname,
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const GValue *value);
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void gst_structure_set (GstStructure *structure,
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const gchar *fieldname,
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...);
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void gst_structure_set_valist (GstStructure *structure,
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const gchar *fieldname,
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va_list varargs);
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G_CONST_RETURN GValue * gst_structure_id_get_value (const GstStructure *structure,
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GQuark field);
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G_CONST_RETURN GValue * gst_structure_get_value (const GstStructure *structure,
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const gchar *fieldname);
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void gst_structure_remove_field (GstStructure *structure,
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const gchar *fieldname);
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void gst_structure_remove_fields (GstStructure *structure,
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const gchar *fieldname,
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...);
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void gst_structure_remove_fields_valist (GstStructure *structure,
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const gchar *fieldname,
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va_list varargs);
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void gst_structure_remove_all_fields (GstStructure *structure);
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GType gst_structure_get_field_type (const GstStructure *structure,
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const gchar *fieldname);
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gboolean gst_structure_foreach (const GstStructure *structure,
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GstStructureForeachFunc func,
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gpointer user_data);
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gboolean gst_structure_map_in_place (GstStructure *structure,
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GstStructureMapFunc func,
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gpointer user_data);
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gint gst_structure_n_fields (const GstStructure *structure);
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gboolean gst_structure_has_field (const GstStructure *structure,
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const gchar *fieldname);
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gboolean gst_structure_has_field_typed (const GstStructure *structure,
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const gchar *fieldname,
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GType type);
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/* utility functions */
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gboolean gst_structure_get_boolean (const GstStructure *structure,
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const gchar *fieldname,
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gboolean *value);
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gboolean gst_structure_get_int (const GstStructure *structure,
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const gchar *fieldname,
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gint *value);
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gboolean gst_structure_get_fourcc (const GstStructure *structure,
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const gchar *fieldname,
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guint32 *value);
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gboolean gst_structure_get_double (const GstStructure *structure,
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const gchar *fieldname,
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gdouble *value);
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G_CONST_RETURN gchar * gst_structure_get_string (const GstStructure *structure,
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const gchar *fieldname);
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gchar * gst_structure_to_string (const GstStructure *structure);
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GstStructure * gst_structure_from_string (const gchar *string,
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gchar **end);
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gboolean gst_caps_structure_fixate_field_nearest_int (GstStructure *structure,
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const char *field_name,
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int target);
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gboolean gst_caps_structure_fixate_field_nearest_double (GstStructure *structure,
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const char *field_name,
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double target);
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G_END_DECLS
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#endif
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