mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-09-19 10:30:30 +00:00
62d8456eb7
Original commit message from CVS: * gst/id3demux/id3tags.c: * gst/id3demux/id3tags.h: * gst/id3demux/id3v2frames.c: (id3v2_tag_to_taglist): We don't want the same string multiple times in a tag list for the same tag ever, for any tag, not just for GST_TAG_GENRE, so make sure this doesn't happen and remove special-case code for GST_TAG_GENRE.
120 lines
3.2 KiB
C
120 lines
3.2 KiB
C
/* 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., 59 Temple Place - Suite 330,
|
|
* Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
#ifndef __ID3TAGS_H__
|
|
#define __ID3TAGS_H__
|
|
|
|
#include <gst/gst.h>
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
/* private tag for storing unprocessed ID3v2 frames */
|
|
#define GST_ID3_DEMUX_TAG_ID3V2_FRAME "private-id3v2-frame"
|
|
|
|
#define ID3V1_TAG_SIZE 128
|
|
#define ID3V2_MARK_SIZE 3
|
|
#define ID3V2_HDR_SIZE 10
|
|
|
|
typedef enum {
|
|
ID3TAGS_MORE_DATA,
|
|
ID3TAGS_READ_TAG,
|
|
ID3TAGS_BROKEN_TAG
|
|
} ID3TagsResult;
|
|
|
|
/* From id3tags.c */
|
|
guint id3demux_calc_id3v2_tag_size (GstBuffer * buf);
|
|
ID3TagsResult id3demux_read_id3v2_tag (GstBuffer *buffer, guint *id3v2_size,
|
|
GstTagList **tags);
|
|
|
|
guint 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)
|
|
|
|
/* From id3v2frames.c */
|
|
gboolean id3demux_id3v2_parse_frame (ID3TagsWorking *work);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif
|