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e8ab1006c7
This is because we need to be able to signal different TOCs to downstream elements such as muxers and the application, and because we need to send both types as events (because the sink should post the TOC messages for the app in the end, just like tag messages are now posted by the sinks), and hence need to make TOC events multi-sticky. https://bugzilla.gnome.org/show_bug.cgi?id=678742
142 lines
6.1 KiB
C
142 lines
6.1 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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* GstTocScope:
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* @GST_TOC_SCOPE_GLOBAL: global TOC representing all selectable options
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* (this is what applications are usually interested in)
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* @GST_TOC_SCOPE_CURRENT: TOC for the currently active/selected stream
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* (this is a TOC representing the current stream from start to EOS,
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* and is what a TOC writer / muxer is usually interested in; it will
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* usually be a subset of the global TOC, e.g. just the chapters of
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* the current title, or the chapters selected for playback from the
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* current title)
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*
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* The scope of a TOC.
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*/
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typedef enum {
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GST_TOC_SCOPE_GLOBAL = 1,
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GST_TOC_SCOPE_CURRENT = 2
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} GstTocScope;
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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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/* 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 (GstTocScope scope);
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GstTocScope gst_toc_get_scope (const GstToc *toc);
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void gst_toc_set_tags (GstToc *toc, GstTagList * tags);
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void gst_toc_merge_tags (GstToc *toc, GstTagList *tags, GstTagMergeMode mode);
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GstTagList * gst_toc_get_tags (const GstToc *toc);
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void gst_toc_append_entry (GstToc *toc, GstTocEntry *entry);
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GList * gst_toc_get_entries (const GstToc *toc);
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void gst_toc_dump (GstToc *toc);
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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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#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 (const GstTocEntry *entry);
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const gchar * gst_toc_entry_get_uid (const GstTocEntry *entry);
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void gst_toc_entry_append_sub_entry (GstTocEntry *entry, GstTocEntry *subentry);
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GList * gst_toc_entry_get_sub_entries (const GstTocEntry *entry);
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void gst_toc_entry_set_tags (GstTocEntry *entry, GstTagList *tags);
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void gst_toc_entry_merge_tags (GstTocEntry *entry, GstTagList *tags, GstTagMergeMode mode);
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GstTagList * gst_toc_entry_get_tags (const GstTocEntry *entry);
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gboolean gst_toc_entry_is_alternative (const GstTocEntry *entry);
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gboolean gst_toc_entry_is_sequence (const GstTocEntry *entry);
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void gst_toc_entry_set_start_stop_times (GstTocEntry *entry, gint64 start, gint64 stop);
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gboolean gst_toc_entry_get_start_stop_times (const GstTocEntry *entry, gint64 *start, gint64 *stop);
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GstToc * gst_toc_entry_get_toc (GstTocEntry *entry);
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GstTocEntry * gst_toc_entry_get_parent (GstTocEntry *entry);
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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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