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163 lines
5 KiB
C
163 lines
5 KiB
C
/* GStreamer Editing Services
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* Copyright (C) 2010 Brandon Lewis <brandon.lewis@collabora.co.uk>
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* 2010 Nokia Corporation
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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 _GES_FORMATTER
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#define _GES_FORMATTER
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#include <glib-object.h>
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#include <ges/ges-timeline.h>
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#define GES_TYPE_FORMATTER ges_formatter_get_type()
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#define GES_FORMATTER(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST ((obj), GES_TYPE_FORMATTER, GESFormatter))
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#define GES_FORMATTER_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST ((klass), GES_TYPE_FORMATTER, GESFormatterClass))
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#define GES_IS_FORMATTER(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GES_TYPE_FORMATTER))
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#define GES_IS_FORMATTER_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE ((klass), GES_TYPE_FORMATTER))
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#define GES_FORMATTER_GET_CLASS(obj) \
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(G_TYPE_INSTANCE_GET_CLASS ((obj), GES_TYPE_FORMATTER, GESFormatterClass))
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/**
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* GESFormatter:
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*
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* Base class for timeline data serialization and deserialization.
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*/
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struct _GESFormatter {
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GObject parent;
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/*< private >*/
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gchar *data;
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gsize length;
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/* Padding for API extension */
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gpointer _ges_reserved[GES_PADDING];
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};
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typedef gboolean (*GESFormatterCanLoadURIMethod) (gchar * uri);
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typedef gboolean (*GESFormatterCanSaveURIMethod) (gchar * uri);
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/**
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* GESFormatterLoadFromURIMethod:
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* @formatter: a #GESFormatter
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* @timeline: a #GESTimeline
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* @uri: the URI to load from
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*
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* Virtual method for loading a timeline from a given URI.
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*
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* Every #GESFormatter subclass needs to implement this method.
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*
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* Returns: TRUE if the @timeline was properly loaded from the given @uri,
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* else FALSE.
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**/
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typedef gboolean (*GESFormatterLoadFromURIMethod) (GESFormatter *formatter,
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GESTimeline *timeline,
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gchar * uri);
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/**
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* GESFormatterSaveToURIMethod:
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* @formatter: a #GESFormatter
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* @timeline: a #GESTimeline
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* @uri: the URI to save to
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*
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* Virtual method for saving a timeline to a uri.
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*
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* Every #GESFormatter subclass needs to implement this method.
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*
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* Returns: TRUE if the @timeline was properly stored to the given @uri,
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* else FALSE.
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*/
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typedef gboolean (*GESFormatterSaveToURIMethod) (GESFormatter *formatter,
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GESTimeline *timeline,
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gchar * uri);
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typedef gboolean (*GESFormatterSaveMethod) (GESFormatter * formatter,
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GESTimeline * timeline);
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typedef gboolean (*GESFormatterLoadMethod) (GESFormatter * formatter,
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GESTimeline * timeline);
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/**
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* GESFormatterClass:
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* @parent_class: the parent class structure
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* @can_load_uri: Whether the URI can be loaded
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* @can_save_uri: Whether the URI can be saved
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* @load_from_uri: class method to deserialize data from a URI
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* @save_to_uri: class method to serialize data to a URI
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*
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* GES Formatter class. Override the vmethods to implement the formatter functionnality.
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*/
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struct _GESFormatterClass {
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GObjectClass parent_class;
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/* FIXME : formatter name */
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/* FIXME : formatter description */
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/* FIXME : format name/mime-type */
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GESFormatterCanLoadURIMethod can_load_uri;
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GESFormatterCanSaveURIMethod can_save_uri;
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GESFormatterLoadFromURIMethod load_from_uri;
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GESFormatterSaveToURIMethod save_to_uri;
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/*< private >*/
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GESFormatterSaveMethod save;
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GESFormatterLoadMethod load;
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/* Padding for API extension */
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gpointer _ges_reserved[GES_PADDING];
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};
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GType ges_formatter_get_type (void);
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/* Main Formatter methods */
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GESFormatter *ges_formatter_new_for_uri (gchar *uri);
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GESFormatter *ges_default_formatter_new (void);
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gboolean ges_formatter_can_load_uri (gchar * uri);
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gboolean ges_formatter_can_save_uri (gchar * uri);
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gboolean ges_formatter_load_from_uri (GESFormatter * formatter,
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GESTimeline *timeline,
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gchar *uri);
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gboolean ges_formatter_save_to_uri (GESFormatter * formatter,
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GESTimeline *timeline,
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gchar *uri);
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/* Non-standard methods. WILL BE DEPRECATED */
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gboolean ges_formatter_load (GESFormatter * formatter,
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GESTimeline * timeline);
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gboolean ges_formatter_save (GESFormatter * formatter,
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GESTimeline * timeline);
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void ges_formatter_set_data (GESFormatter * formatter,
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void *data, gsize length);
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void *ges_formatter_get_data (GESFormatter *formatter,
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gsize *length);
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void ges_formatter_clear_data (GESFormatter *formatter);
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#endif /* _GES_FORMATTER */
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