gstreamer/gst-libs/gst/tag/id3v2.h
Tim-Philipp Müller b618c5776d tag: GST_EXPORT -> GST_TAG_API
We need different export decorators for the different libs.
For now no actual change though, just rename before the release,
and add prelude headers to define the new decorator to GST_EXPORT.
2018-03-13 12:16:42 +00:00

122 lines
3.3 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., 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