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/* Copyright 2005 Jan Schmidt <thaytan@mad.scientist.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __ID3TAGS_H__
#define __ID3TAGS_H__
#include <gst/gst.h>
#include <gst/tag/tag-prelude.h>
G_BEGIN_DECLS
#define ID3V2_MARK_SIZE 3
#define ID3V2_HDR_SIZE GST_TAG_ID3V2_HEADER_SIZE
/* From id3v2.c */
guint id3v2_read_synch_uint (const guint8 * data, guint size);
/* Things shared by id3tags.c and id3v2frames.c */
#define ID3V2_VERSION 0x0400
#define ID3V2_VER_MAJOR(v) ((v) >> 8)
#define ID3V2_VER_MINOR(v) ((v) & 0xff)
typedef struct {
guint16 version;
guint8 flags;
guint32 size;
guint8 *frame_data;
guint32 frame_data_size;
guint32 ext_hdr_size;
guint8 ext_flag_bytes;
guint8 *ext_flag_data;
} ID3v2Header;
typedef struct {
ID3v2Header hdr;
GstBuffer *buffer;
GstTagList *tags;
/* Current frame decoding */
guint cur_frame_size;
gchar *frame_id;
guint16 frame_flags;
guint8 *parse_data;
guint parse_size;
/* To collect day/month from obsolete TDAT frame if it exists */
guint pending_month;
guint pending_day;
} ID3TagsWorking;
enum {
ID3V2_HDR_FLAG_UNSYNC = 0x80,
ID3V2_HDR_FLAG_EXTHDR = 0x40,
ID3V2_HDR_FLAG_EXPERIMENTAL = 0x20,
ID3V2_HDR_FLAG_FOOTER = 0x10
};
enum {
ID3V2_EXT_FLAG_UPDATE = 0x80,
ID3V2_EXT_FLAG_CRC = 0x40,
ID3V2_EXT_FLAG_RESTRICTED = 0x20
};
enum {
ID3V2_FRAME_STATUS_FRAME_ALTER_PRESERVE = 0x4000,
ID3V2_FRAME_STATUS_FILE_ALTER_PRESERVE = 0x2000,
ID3V2_FRAME_STATUS_READONLY = 0x1000,
ID3V2_FRAME_FORMAT_GROUPING_ID = 0x0040,
ID3V2_FRAME_FORMAT_COMPRESSION = 0x0008,
ID3V2_FRAME_FORMAT_ENCRYPTION = 0x0004,
ID3V2_FRAME_FORMAT_UNSYNCHRONISATION = 0x0002,
ID3V2_FRAME_FORMAT_DATA_LENGTH_INDICATOR = 0x0001
};
#define ID3V2_3_FRAME_FLAGS_MASK \
(ID3V2_FRAME_STATUS_FRAME_ALTER_PRESERVE | \
ID3V2_FRAME_STATUS_FILE_ALTER_PRESERVE | \
ID3V2_FRAME_STATUS_READONLY | \
ID3V2_FRAME_FORMAT_GROUPING_ID | \
ID3V2_FRAME_FORMAT_COMPRESSION | \
ID3V2_FRAME_FORMAT_ENCRYPTION)
/* FIXME 0.11: remove 'private' bit from GST_TAG_ID3V2_FRAME */
/**
* GST_TAG_ID3V2_FRAME:
*
* Contains a single unprocessed ID3v2 frame. (buffer)
*
* (Not public API for now)
*/
#define GST_TAG_ID3V2_FRAME "private-id3v2-frame"
/* From id3v2frames.c */
gboolean id3v2_parse_frame (ID3TagsWorking *work);
guint8 * id3v2_ununsync_data (const guint8 * unsync_data, guint32 * size);
GstDebugCategory * id3v2_ensure_debug_category (void);
G_END_DECLS
#endif