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e11f38b98b
Make entry types less abstract. https://bugzilla.gnome.org/show_bug.cgi?id=678742
154 lines
5.6 KiB
C
154 lines
5.6 KiB
C
/* GStreamer
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* (c) 2010, 2012 Alexander Saprykin <xelfium@gmail.com>
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*
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* gsttoc.h: generic TOC API declaration
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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_TOC_H__
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#define __GST_TOC_H__
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#include <gst/gstconfig.h>
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#include <gst/gstminiobject.h>
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#include <gst/gststructure.h>
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#include <gst/gsttaglist.h>
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#include <gst/gstformat.h>
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G_BEGIN_DECLS
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#define GST_TYPE_TOC (gst_toc_get_type ())
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#define GST_TYPE_TOC_ENTRY (gst_toc_entry_get_type ())
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typedef struct _GstTocEntry GstTocEntry;
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typedef struct _GstToc GstToc;
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/**
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* GstTocEntryType:
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* @GST_TOC_ENTRY_TYPE_ANGLE: entry is an angle (i.e. an alternative)
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* @GST_TOC_ENTRY_TYPE_VERSION: entry is a version (i.e. alternative)
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* @GST_TOC_ENTRY_TYPE_EDITION: entry is an edition (i.e. alternative)
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* @GST_TOC_ENTRY_TYPE_INVALID: invalid entry type value
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* @GST_TOC_ENTRY_TYPE_TITLE: entry is a title (i.e. a part of a sequence)
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* @GST_TOC_ENTRY_TYPE_TRACK: entry is a track (i.e. a part of a sequence)
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* @GST_TOC_ENTRY_TYPE_CHAPTER: entry is a chapter (i.e. a part of a sequence)
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*
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* The different types of TOC entries (see #GstTocEntry).
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*
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* There are two types of TOC entries: alternatives or parts in a sequence.
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*/
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typedef enum {
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GST_TOC_ENTRY_TYPE_ANGLE = -3,
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GST_TOC_ENTRY_TYPE_VERSION = -2,
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GST_TOC_ENTRY_TYPE_EDITION = -1,
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GST_TOC_ENTRY_TYPE_INVALID = 0,
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GST_TOC_ENTRY_TYPE_TITLE = 1,
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GST_TOC_ENTRY_TYPE_TRACK = 2,
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GST_TOC_ENTRY_TYPE_CHAPTER = 3,
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} GstTocEntryType;
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#define GST_TOC_ENTRY_TYPE_IS_ALTERNATIVE(entry_type) (entry_type < 0)
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#define GST_TOC_ENTRY_TYPE_IS_SEQUENCE(entry_type) (entry_type > 0)
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/**
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* GstTocEntry:
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* @uid: unique (for a whole TOC) id of the entry. This value should be persistent and
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* should not be changed while updating TOC. @uid should be handled as "opaque" value
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* without meaning (e.g. applications should not assume the /editionX/chapterY/chapter/Z structure,
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* other demuxers could do something else), it should help to track updates of certain entries.
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* @type: #GstTocEntryType of this entry.
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* @subentries: (element-type GstTocEntry): list of #GstTocEntry
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* children.
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* @pads: (element-type GstPad): list of #GstPad objects, related to
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* this #GstTocEntry.
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* @tags: tags related to this entry.
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* @info: extra information related to this entry.
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*
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* Definition of TOC entry structure.
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*/
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struct _GstTocEntry {
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GstMiniObject mini_object;
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gchar *uid;
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GstTocEntryType type;
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GList *subentries;
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GList *pads;
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GstTagList *tags;
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GstStructure *info;
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/*< private >*/
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gpointer _gst_reserved[GST_PADDING];
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};
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/* FIXME: pad member should be GstPad type, but that's
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* impossible due to recursive includes */
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/**
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* GstToc:
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* @entries: (element-type GstTocEntry): list of #GstTocEntry entries
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* of the TOC.
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* @tags: tags related to the whole TOC.
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* @info: extra information related to the TOC.
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*
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* Definition of TOC structure.
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*/
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struct _GstToc {
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GstMiniObject mini_object;
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GList *entries;
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GstTagList *tags;
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GstStructure *info;
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/*< private >*/
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gpointer _gst_reserved[GST_PADDING];
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};
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/* functions to return type structures */
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GType gst_toc_get_type (void);
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GType gst_toc_entry_get_type (void);
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/* functions to create, ref and unref/free TOCs */
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GstToc * gst_toc_new (void);
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#define gst_toc_ref(toc) (GstToc*)gst_mini_object_ref(GST_MINI_OBJECT_CAST(toc))
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#define gst_toc_unref(toc) gst_mini_object_unref(GST_MINI_OBJECT_CAST(toc))
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#define gst_toc_copy(toc) (GstToc*)gst_mini_object_copy(GST_MINI_OBJECT_CAST(toc))
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#define gst_toc_make_writable(toc) (GstToc*)gst_mini_object_make_writable(GST_MINI_OBJECT_CAST(toc))
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/* functions to create, ref and unref/free TOC entries */
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GstTocEntry * gst_toc_entry_new (GstTocEntryType type, const gchar *uid);
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GstTocEntry * gst_toc_entry_new_with_pad (GstTocEntryType type, const gchar *uid, GstPad * pad);
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#define gst_toc_entry_ref(entry) (GstTocEntry*)gst_mini_object_ref(GST_MINI_OBJECT_CAST(entry))
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#define gst_toc_entry_unref(entry) gst_mini_object_unref(GST_MINI_OBJECT_CAST(entry))
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#define gst_toc_entry_copy(entry) (GstTocEntry*)gst_mini_object_copy(GST_MINI_OBJECT_CAST(entry))
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#define gst_toc_entry_make_writable(entry) (GstTocEntry*)gst_mini_object_make_writable(GST_MINI_OBJECT_CAST(entry))
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GstTocEntry * gst_toc_find_entry (const GstToc *toc, const gchar *uid);
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GstTocEntryType gst_toc_entry_get_entry_type (GstTocEntry * entry);
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gboolean gst_toc_entry_is_alternative (GstTocEntry * entry);
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gboolean gst_toc_entry_is_sequence (GstTocEntry * entry);
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void gst_toc_entry_set_start_stop (GstTocEntry *entry, gint64 start, gint64 stop);
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gboolean gst_toc_entry_get_start_stop (const GstTocEntry *entry, gint64 *start, gint64 *stop);
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const gchar * gst_toc_entry_type_get_nick (GstTocEntryType type);
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G_END_DECLS
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#endif /* __GST_TOC_H__ */
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