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4e121ae147
Original commit message from CVS: * gst/gst_private.h: * gst/gstbuffer.h: * gst/gstevent.h: * gst/gstformat.h: * gst/gstmessage.h: * gst/gstplugin.h: * gst/gstquery.h: * gst/gsttaglist.h: * gst/gstvalue.h: Move declaration of private _gst_foo_initialize() functions into our private header file where they should have been all along.
668 lines
23 KiB
C
668 lines
23 KiB
C
/* GStreamer
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* Copyright (C) 2003 Benjamin Otte <in7y118@public.uni-hamburg.de>
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*
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* gsttaglist.h: Header for tag support
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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_TAGLIST_H__
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#define __GST_TAGLIST_H__
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#include <gst/gststructure.h>
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#include <gst/glib-compat.h>
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G_BEGIN_DECLS
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/**
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* GstTagMergeMode:
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* @GST_TAG_MERGE_UNDEFINED: undefined merge mode
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* @GST_TAG_MERGE_REPLACE_ALL: replace all tags (clear list and append)
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* @GST_TAG_MERGE_REPLACE: replace tags
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* @GST_TAG_MERGE_APPEND: append tags
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* @GST_TAG_MERGE_PREPEND: prepend tags
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* @GST_TAG_MERGE_KEEP: keep existing tags
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* @GST_TAG_MERGE_KEEP_ALL: keep all existing tags
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* @GST_TAG_MERGE_COUNT: the number of merge modes
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*
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* The different tag merging modes are basically replace, overwrite and append,
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* but they can be seen from two directions.
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* Given two taglists: A - the one that are supplied to
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* gst_tag_setter_merge_tags() or gst_tag_setter_add_tags() and B - the tags
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* already in the element, how are the tags merged? In the table below this is
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* shown for the cases that a tag exists in the list (A) or does not exists (!A)
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* and combination thereof.
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*
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* <table frame="all" colsep="1" rowsep="1">
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* <title>merge mode</title>
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* <tgroup cols='5' align='left'>
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* <thead>
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* <row>
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* <entry>merge mode</entry>
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* <entry>A + B</entry>
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* <entry>A + !B</entry>
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* <entry>!A + B</entry>
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* <entry>!A + !B</entry>
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* </row>
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* </thead>
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* <tbody>
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* <row>
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* <entry>REPLACE_ALL</entry>
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* <entry>B</entry>
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* <entry>-</entry>
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* <entry>B</entry>
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* <entry>-</entry>
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* </row>
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* <row>
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* <entry>REPLACE</entry>
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* <entry>B</entry>
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* <entry>A</entry>
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* <entry>B</entry>
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* <entry>-</entry>
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* </row>
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* <row>
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* <entry>APPEND</entry>
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* <entry>A, B</entry>
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* <entry>A</entry>
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* <entry>B</entry>
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* <entry>-</entry>
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* </row>
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* <row>
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* <entry>PREPEND</entry>
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* <entry>B, A</entry>
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* <entry>A</entry>
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* <entry>B</entry>
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* <entry>-</entry>
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* </row>
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* <row>
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* <entry>KEEP</entry>
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* <entry>A</entry>
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* <entry>A</entry>
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* <entry>B</entry>
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* <entry>-</entry>
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* </row>
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* <row>
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* <entry>KEEP_ALL</entry>
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* <entry>A</entry>
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* <entry>A</entry>
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* <entry>-</entry>
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* <entry>-</entry>
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* </row>
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* </tbody>
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* </tgroup>
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* </table>
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*/
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typedef enum {
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GST_TAG_MERGE_UNDEFINED,
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GST_TAG_MERGE_REPLACE_ALL,
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GST_TAG_MERGE_REPLACE,
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GST_TAG_MERGE_APPEND,
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GST_TAG_MERGE_PREPEND,
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GST_TAG_MERGE_KEEP,
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GST_TAG_MERGE_KEEP_ALL,
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/* add more */
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GST_TAG_MERGE_COUNT
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} GstTagMergeMode;
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#define GST_TAG_MODE_IS_VALID(mode) (((mode) > GST_TAG_MERGE_UNDEFINED) && ((mode) < GST_TAG_MERGE_COUNT))
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/**
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* GstTagFlag:
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* @GST_TAG_FLAG_UNDEFINED: undefined flag
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* @GST_TAG_FLAG_META: tag is meta data
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* @GST_TAG_FLAG_ENCODED: tag is encoded
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* @GST_TAG_FLAG_DECODED: tag is decoded
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* @GST_TAG_FLAG_COUNT: number of tag flags
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*
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* Extra tag flags used when registering tags.
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*/
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typedef enum {
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GST_TAG_FLAG_UNDEFINED,
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GST_TAG_FLAG_META,
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GST_TAG_FLAG_ENCODED,
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GST_TAG_FLAG_DECODED,
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GST_TAG_FLAG_COUNT
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} GstTagFlag;
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#define GST_TAG_FLAG_IS_VALID(flag) (((flag) > GST_TAG_FLAG_UNDEFINED) && ((flag) < GST_TAG_FLAG_COUNT))
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/**
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* GstTagList:
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*
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* Opaque #GstTagList data structure.
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*/
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typedef GstStructure GstTagList;
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#define GST_TAG_LIST(x) ((GstTagList *) (x))
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#define GST_IS_TAG_LIST(x) ((x) != NULL && gst_is_tag_list (GST_TAG_LIST (x)))
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#define GST_TYPE_TAG_LIST (gst_tag_list_get_type ())
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/**
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* GstTagForeachFunc:
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* @list: the #GstTagList
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* @tag: a name of a tag in @list
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* @user_data: user data
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*
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* A function that will be called in gst_tag_list_foreach(). The function may
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* not modify the tag list.
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*/
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typedef void (*GstTagForeachFunc) (const GstTagList * list,
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const gchar * tag,
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gpointer user_data);
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/**
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* GstTagMergeFunc:
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* @dest: the destination #GValue
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* @src: the source #GValue
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*
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* A function for merging multiple values of a tag used when registering
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* tags.
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*/
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typedef void (* GstTagMergeFunc) (GValue *dest, const GValue *src);
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GType gst_tag_list_get_type (void);
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/* tag registration */
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void gst_tag_register (const gchar * name,
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GstTagFlag flag,
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GType type,
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const gchar * nick,
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const gchar * blurb,
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GstTagMergeFunc func);
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/* some default merging functions */
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void gst_tag_merge_use_first (GValue * dest, const GValue * src);
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void gst_tag_merge_strings_with_comma (GValue * dest, const GValue * src);
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/* basic tag support */
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gboolean gst_tag_exists (const gchar * tag);
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GType gst_tag_get_type (const gchar * tag);
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G_CONST_RETURN gchar * gst_tag_get_nick (const gchar * tag);
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G_CONST_RETURN gchar * gst_tag_get_description (const gchar * tag);
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GstTagFlag gst_tag_get_flag (const gchar * tag);
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gboolean gst_tag_is_fixed (const gchar * tag);
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/* tag lists */
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GstTagList * gst_tag_list_new (void);
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gboolean gst_is_tag_list (gconstpointer p);
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GstTagList * gst_tag_list_copy (const GstTagList * list);
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gboolean gst_tag_list_is_empty (const GstTagList * list);
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void gst_tag_list_insert (GstTagList * into,
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const GstTagList * from,
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GstTagMergeMode mode);
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GstTagList * gst_tag_list_merge (const GstTagList * list1,
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const GstTagList * list2,
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GstTagMergeMode mode);
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void gst_tag_list_free (GstTagList * list);
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guint gst_tag_list_get_tag_size (const GstTagList * list,
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const gchar * tag);
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void gst_tag_list_add (GstTagList * list,
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GstTagMergeMode mode,
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const gchar * tag,
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...) G_GNUC_NULL_TERMINATED;
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void gst_tag_list_add_values (GstTagList * list,
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GstTagMergeMode mode,
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const gchar * tag,
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...) G_GNUC_NULL_TERMINATED;
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void gst_tag_list_add_valist (GstTagList * list,
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GstTagMergeMode mode,
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const gchar * tag,
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va_list var_args);
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void gst_tag_list_add_valist_values (GstTagList * list,
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GstTagMergeMode mode,
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const gchar * tag,
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va_list var_args);
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void gst_tag_list_remove_tag (GstTagList * list,
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const gchar * tag);
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void gst_tag_list_foreach (const GstTagList * list,
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GstTagForeachFunc func,
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gpointer user_data);
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G_CONST_RETURN GValue *
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gst_tag_list_get_value_index (const GstTagList * list,
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const gchar * tag,
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guint index);
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gboolean gst_tag_list_copy_value (GValue * dest,
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const GstTagList * list,
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const gchar * tag);
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/* simplifications (FIXME: do we want them?) */
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gboolean gst_tag_list_get_char (const GstTagList * list,
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const gchar * tag,
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gchar * value);
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gboolean gst_tag_list_get_char_index (const GstTagList * list,
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const gchar * tag,
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guint index,
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gchar * value);
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gboolean gst_tag_list_get_uchar (const GstTagList * list,
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const gchar * tag,
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guchar * value);
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gboolean gst_tag_list_get_uchar_index (const GstTagList * list,
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const gchar * tag,
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guint index,
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guchar * value);
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gboolean gst_tag_list_get_boolean (const GstTagList * list,
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const gchar * tag,
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gboolean * value);
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gboolean gst_tag_list_get_boolean_index (const GstTagList * list,
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const gchar * tag,
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guint index,
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gboolean * value);
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gboolean gst_tag_list_get_int (const GstTagList * list,
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const gchar * tag,
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gint * value);
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gboolean gst_tag_list_get_int_index (const GstTagList * list,
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const gchar * tag,
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guint index,
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gint * value);
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gboolean gst_tag_list_get_uint (const GstTagList * list,
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const gchar * tag,
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guint * value);
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gboolean gst_tag_list_get_uint_index (const GstTagList * list,
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const gchar * tag,
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guint index,
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guint * value);
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gboolean gst_tag_list_get_long (const GstTagList * list,
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const gchar * tag,
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glong * value);
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gboolean gst_tag_list_get_long_index (const GstTagList * list,
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const gchar * tag,
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guint index,
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glong * value);
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gboolean gst_tag_list_get_ulong (const GstTagList * list,
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const gchar * tag,
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gulong * value);
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gboolean gst_tag_list_get_ulong_index (const GstTagList * list,
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const gchar * tag,
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guint index,
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gulong * value);
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gboolean gst_tag_list_get_int64 (const GstTagList * list,
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const gchar * tag,
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gint64 * value);
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gboolean gst_tag_list_get_int64_index (const GstTagList * list,
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const gchar * tag,
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guint index,
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gint64 * value);
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gboolean gst_tag_list_get_uint64 (const GstTagList * list,
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const gchar * tag,
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guint64 * value);
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gboolean gst_tag_list_get_uint64_index (const GstTagList * list,
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const gchar * tag,
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guint index,
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guint64 * value);
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gboolean gst_tag_list_get_float (const GstTagList * list,
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const gchar * tag,
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gfloat * value);
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gboolean gst_tag_list_get_float_index (const GstTagList * list,
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const gchar * tag,
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guint index,
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gfloat * value);
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gboolean gst_tag_list_get_double (const GstTagList * list,
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const gchar * tag,
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gdouble * value);
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gboolean gst_tag_list_get_double_index (const GstTagList * list,
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const gchar * tag,
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guint index,
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gdouble * value);
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gboolean gst_tag_list_get_string (const GstTagList * list,
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const gchar * tag,
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gchar ** value);
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gboolean gst_tag_list_get_string_index (const GstTagList * list,
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const gchar * tag,
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guint index,
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gchar ** value);
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gboolean gst_tag_list_get_pointer (const GstTagList * list,
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const gchar * tag,
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gpointer * value);
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gboolean gst_tag_list_get_pointer_index (const GstTagList * list,
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const gchar * tag,
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guint index,
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gpointer * value);
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gboolean gst_tag_list_get_date (const GstTagList * list,
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const gchar * tag,
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GDate ** value);
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gboolean gst_tag_list_get_date_index (const GstTagList * list,
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const gchar * tag,
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guint index,
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GDate ** value);
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/* GStreamer core tags */
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/**
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* GST_TAG_TITLE:
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*
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* commonly used title (string)
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*
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* The title as it should be displayed, e.g. 'The Doll House'
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*/
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#define GST_TAG_TITLE "title"
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/**
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* GST_TAG_TITLE_SORTNAME:
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*
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* commonly used title, as used for sorting (string)
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*
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* The title as it should be sorted, e.g. 'Doll House, The'
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*
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* Since: 0.10.15
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*/
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#define GST_TAG_TITLE_SORTNAME "title-sortname"
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/**
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* GST_TAG_ARTIST:
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*
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* person(s) responsible for the recording (string)
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*
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* The artist name as it should be displayed, e.g. 'Jimi Hendrix' or
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* 'The Guitar Heroes'
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*/
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#define GST_TAG_ARTIST "artist"
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/**
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* GST_TAG_ARTIST_SORTNAME:
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*
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* person(s) responsible for the recording, as used for sorting (string)
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*
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* The artist name as it should be sorted, e.g. 'Hendrix, Jimi' or
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* 'Guitar Heroes, The'
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*
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* Since: 0.10.15
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*/
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/* FIXME 0.11: change to "artist-sortname" */
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#define GST_TAG_ARTIST_SORTNAME "musicbrainz-sortname"
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/**
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* GST_TAG_ALBUM:
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*
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* album containing this data (string)
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*
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* The album name as it should be displayed, e.g. 'The Jazz Guitar'
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*/
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#define GST_TAG_ALBUM "album"
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/**
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* GST_TAG_ALBUM_SORTNAME:
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*
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* album containing this data, as used for sorting (string)
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*
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* The album name as it should be sorted, e.g. 'Jazz Guitar, The'
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*
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* Since: 0.10.15
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*/
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#define GST_TAG_ALBUM_SORTNAME "album-sortname"
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/**
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* GST_TAG_COMPOSER:
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*
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* person(s) who composed the recording (string)
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*
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* Since: 0.10.15
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*/
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#define GST_TAG_COMPOSER "composer"
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/**
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* GST_TAG_DATE:
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*
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* date the data was created (#GDate structure)
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*/
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#define GST_TAG_DATE "date"
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/**
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* GST_TAG_GENRE:
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*
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* genre this data belongs to (string)
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*/
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#define GST_TAG_GENRE "genre"
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/**
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* GST_TAG_COMMENT:
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*
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* free text commenting the data (string)
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*/
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#define GST_TAG_COMMENT "comment"
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/**
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* GST_TAG_EXTENDED_COMMENT:
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*
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* key/value text commenting the data (string)
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*
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* Must be in the form of 'key=comment' or
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* 'key[lc]=comment' where 'lc' is an ISO-639
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* language code.
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*
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* This tag is used for unknown Vorbis comment tags,
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* unknown APE tags and certain ID3v2 comment fields.
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*
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* Since: 0.10.10
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*/
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#define GST_TAG_EXTENDED_COMMENT "extended-comment"
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/**
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* GST_TAG_TRACK_NUMBER:
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*
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* track number inside a collection (unsigned integer)
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*/
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#define GST_TAG_TRACK_NUMBER "track-number"
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/**
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* GST_TAG_TRACK_COUNT:
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*
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* count of tracks inside collection this track belongs to (unsigned integer)
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*/
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#define GST_TAG_TRACK_COUNT "track-count"
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/**
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* GST_TAG_ALBUM_VOLUME_NUMBER:
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*
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* disc number inside a collection (unsigned integer)
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*/
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#define GST_TAG_ALBUM_VOLUME_NUMBER "album-disc-number"
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/**
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* GST_TAG_ALBUM_VOLUME_COUNT:
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*
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* count of discs inside collection this disc belongs to (unsigned integer)
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*/
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#define GST_TAG_ALBUM_VOLUME_COUNT "album-disc-count"
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/**
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* GST_TAG_LOCATION:
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*
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* original location of file as a URI (string)
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*/
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#define GST_TAG_LOCATION "location"
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/**
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* GST_TAG_DESCRIPTION:
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*
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* short text describing the content of the data (string)
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*/
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|
#define GST_TAG_DESCRIPTION "description"
|
|
/**
|
|
* GST_TAG_VERSION:
|
|
*
|
|
* version of this data (string)
|
|
*/
|
|
#define GST_TAG_VERSION "version"
|
|
/**
|
|
* GST_TAG_ISRC:
|
|
*
|
|
* International Standard Recording Code - see http://www.ifpi.org/isrc/ (string)
|
|
*/
|
|
#define GST_TAG_ISRC "isrc"
|
|
/**
|
|
* GST_TAG_ORGANIZATION:
|
|
*
|
|
* organization (string)
|
|
*/
|
|
#define GST_TAG_ORGANIZATION "organization"
|
|
/**
|
|
* GST_TAG_COPYRIGHT:
|
|
*
|
|
* copyright notice of the data (string)
|
|
*/
|
|
#define GST_TAG_COPYRIGHT "copyright"
|
|
/**
|
|
* GST_TAG_COPYRIGHT_URI:
|
|
*
|
|
* URI to location where copyright details can be found (string)
|
|
*
|
|
* Since: 0.10.14
|
|
*/
|
|
#define GST_TAG_COPYRIGHT_URI "copyright-uri"
|
|
/**
|
|
* GST_TAG_CONTACT:
|
|
*
|
|
* contact information (string)
|
|
*/
|
|
#define GST_TAG_CONTACT "contact"
|
|
/**
|
|
* GST_TAG_LICENSE:
|
|
*
|
|
* license of data (string)
|
|
*/
|
|
#define GST_TAG_LICENSE "license"
|
|
/**
|
|
* GST_TAG_LICENSE_URI:
|
|
*
|
|
* URI to location where license details can be found (string)
|
|
*
|
|
* Since: 0.10.14
|
|
*/
|
|
#define GST_TAG_LICENSE_URI "license-uri"
|
|
/**
|
|
* GST_TAG_PERFORMER:
|
|
*
|
|
* person(s) performing (string)
|
|
*/
|
|
#define GST_TAG_PERFORMER "performer"
|
|
/**
|
|
* GST_TAG_DURATION:
|
|
*
|
|
* length in GStreamer time units (nanoseconds) (unsigned 64-bit integer)
|
|
*/
|
|
#define GST_TAG_DURATION "duration"
|
|
/**
|
|
* GST_TAG_CODEC:
|
|
*
|
|
* codec the data is stored in (string)
|
|
*/
|
|
#define GST_TAG_CODEC "codec"
|
|
/**
|
|
* GST_TAG_VIDEO_CODEC:
|
|
*
|
|
* codec the video data is stored in (string)
|
|
*/
|
|
#define GST_TAG_VIDEO_CODEC "video-codec"
|
|
/**
|
|
* GST_TAG_AUDIO_CODEC:
|
|
*
|
|
* codec the audio data is stored in (string)
|
|
*/
|
|
#define GST_TAG_AUDIO_CODEC "audio-codec"
|
|
/**
|
|
* GST_TAG_BITRATE:
|
|
*
|
|
* exact or average bitrate in bits/s (unsigned integer)
|
|
*/
|
|
#define GST_TAG_BITRATE "bitrate"
|
|
/**
|
|
* GST_TAG_NOMINAL_BITRATE:
|
|
*
|
|
* nominal bitrate in bits/s (unsigned integer)
|
|
*/
|
|
#define GST_TAG_NOMINAL_BITRATE "nominal-bitrate"
|
|
/**
|
|
* GST_TAG_MINIMUM_BITRATE:
|
|
*
|
|
* minimum bitrate in bits/s (unsigned integer)
|
|
*/
|
|
#define GST_TAG_MINIMUM_BITRATE "minimum-bitrate"
|
|
/**
|
|
* GST_TAG_MAXIMUM_BITRATE:
|
|
*
|
|
* maximum bitrate in bits/s (unsigned integer)
|
|
*/
|
|
#define GST_TAG_MAXIMUM_BITRATE "maximum-bitrate"
|
|
/**
|
|
* GST_TAG_SERIAL:
|
|
*
|
|
* serial number of track (unsigned integer)
|
|
*/
|
|
#define GST_TAG_SERIAL "serial"
|
|
/**
|
|
* GST_TAG_ENCODER:
|
|
*
|
|
* encoder used to encode this stream (string)
|
|
*/
|
|
#define GST_TAG_ENCODER "encoder"
|
|
/**
|
|
* GST_TAG_ENCODER_VERSION:
|
|
*
|
|
* version of the encoder used to encode this stream (unsigned integer)
|
|
*/
|
|
#define GST_TAG_ENCODER_VERSION "encoder-version"
|
|
/**
|
|
* GST_TAG_TRACK_GAIN:
|
|
*
|
|
* track gain in db (double)
|
|
*/
|
|
#define GST_TAG_TRACK_GAIN "replaygain-track-gain"
|
|
/**
|
|
* GST_TAG_TRACK_PEAK:
|
|
*
|
|
* peak of the track (double)
|
|
*/
|
|
#define GST_TAG_TRACK_PEAK "replaygain-track-peak"
|
|
/**
|
|
* GST_TAG_ALBUM_GAIN:
|
|
*
|
|
* album gain in db (double)
|
|
*/
|
|
#define GST_TAG_ALBUM_GAIN "replaygain-album-gain"
|
|
/**
|
|
* GST_TAG_ALBUM_PEAK:
|
|
*
|
|
* peak of the album (double)
|
|
*/
|
|
#define GST_TAG_ALBUM_PEAK "replaygain-album-peak"
|
|
/**
|
|
* GST_TAG_REFERENCE_LEVEL:
|
|
*
|
|
* reference level of track and album gain values (double)
|
|
*
|
|
* Since: 0.10.12
|
|
*/
|
|
#define GST_TAG_REFERENCE_LEVEL "replaygain-reference-level"
|
|
/**
|
|
* GST_TAG_LANGUAGE_CODE:
|
|
*
|
|
* Language code (ISO-639-1) (string)
|
|
*/
|
|
#define GST_TAG_LANGUAGE_CODE "language-code"
|
|
/**
|
|
* GST_TAG_IMAGE:
|
|
*
|
|
* image (buffer) (buffer caps should specify the content type)
|
|
*
|
|
* Since: 0.10.6
|
|
*/
|
|
#define GST_TAG_IMAGE "image"
|
|
/**
|
|
* GST_TAG_PREVIEW_IMAGE:
|
|
*
|
|
* image that is meant for preview purposes (buffer)
|
|
* (buffer caps should specify the content type)
|
|
*
|
|
* Since: 0.10.7
|
|
*/
|
|
#define GST_TAG_PREVIEW_IMAGE "preview-image"
|
|
/**
|
|
* GST_TAG_BEATS_PER_MINUTE:
|
|
*
|
|
* number of beats per minute in audio (double)
|
|
*
|
|
* Since: 0.10.12
|
|
*/
|
|
#define GST_TAG_BEATS_PER_MINUTE "beats-per-minute"
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __GST_TAGLIST_H__ */
|