mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
89 lines
2.4 KiB
89 lines
2.4 KiB
/* |
|
* 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 |
|
|
|
enum ID3v2Encoding { |
|
ID3v2_ENCODING_ISO8859 = 0, |
|
ID3v2_ENCODING_UTF16BOM = 1, |
|
ID3v2_ENCODING_UTF16BE = 2, |
|
ID3v2_ENCODING_UTF8 = 3, |
|
}; |
|
|
|
/** |
|
* 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); |
|
|
|
/** |
|
* Read an ID3v2 tag |
|
*/ |
|
void ff_id3v2_read(AVFormatContext *s, const char *magic); |
|
|
|
extern const AVMetadataConv ff_id3v2_34_metadata_conv[]; |
|
extern const AVMetadataConv ff_id3v2_4_metadata_conv[]; |
|
extern const AVMetadataConv ff_id3v2_2_metadata_conv[]; |
|
|
|
/** |
|
* A list of text information frames allowed in both ID3 v2.3 and v2.4 |
|
* http://www.id3.org/id3v2.4.0-frames |
|
* http://www.id3.org/id3v2.4.0-changes |
|
*/ |
|
extern const char ff_id3v2_tags[][4]; |
|
|
|
/** |
|
* ID3v2.4-only text information frames. |
|
*/ |
|
extern const char ff_id3v2_4_tags[][4]; |
|
|
|
/** |
|
* ID3v2.3-only text information frames. |
|
*/ |
|
extern const char ff_id3v2_3_tags[][4]; |
|
|
|
#endif /* AVFORMAT_ID3V2_H */
|
|
|