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/*
* ID3v2 header parser
* Copyright (c) 2003 Fabrice Bellard
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVFORMAT_ID3V2_H
#define AVFORMAT_ID3V2_H
#include <stdint.h>
#include "avformat.h"
#include "metadata.h"
#define ID3v2_HEADER_SIZE 10
/**
* Default magic bytes for ID3v2 header: "ID3"
*/
#define ID3v2_DEFAULT_MAGIC "ID3"
#define ID3v2_FLAG_DATALEN 0x0001
#define ID3v2_FLAG_UNSYNCH 0x0002
#define ID3v2_FLAG_ENCRYPTION 0x0004
#define ID3v2_FLAG_COMPRESSION 0x0008
/**
* Detect ID3v2 Header.
* @param buf must be ID3v2_HEADER_SIZE byte long
* @param magic magic bytes to identify the header, machine byte order.
* If in doubt, use ID3v2_DEFAULT_MAGIC.
*/
int ff_id3v2_match(const uint8_t *buf, const char *magic);
/**
* Get the length of an ID3v2 tag.
* @param buf must be ID3v2_HEADER_SIZE bytes long and point to the start of an
* already detected ID3v2 tag
*/
int ff_id3v2_tag_len(const uint8_t *buf);
/**
* ID3v2 parser
* Handles ID3v2.2, 2.3 and 2.4.
*/
void ff_id3v2_parse(AVFormatContext *s, int len, uint8_t version, uint8_t flags);
/**
* Read an ID3v2 tag
*/
void ff_id3v2_read(AVFormatContext *s, const char *magic);
extern const AVMetadataConv ff_id3v2_metadata_conv[];
/**
* A list of ID3v2.4 text information frames.
* http://www.id3.org/id3v2.4.0-frames
*/
extern const char ff_id3v2_tags[][4];
#endif /* AVFORMAT_ID3V2_H */
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