mirror of
https://github.com/mpv-player/mpv
synced 2024-12-25 00:02:13 +00:00
d72541b75c
Move "struct bstr" definition from ebml.h to its own header and add some utility functions/macros. Change length field type from int to size_t and adjust using code accordingly. Partially based on a patch from Anton Khirnov.
114 lines
3.2 KiB
C
114 lines
3.2 KiB
C
/*
|
|
* This file is part of MPlayer.
|
|
*
|
|
* MPlayer is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* MPlayer 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with MPlayer; if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
#ifndef MPLAYER_EBML_H
|
|
#define MPLAYER_EBML_H
|
|
|
|
#include <inttypes.h>
|
|
#include <stddef.h>
|
|
#include <stdbool.h>
|
|
|
|
#include "stream/stream.h"
|
|
#include "bstr.h"
|
|
|
|
|
|
/* EBML version supported */
|
|
#define EBML_VERSION 1
|
|
|
|
enum ebml_elemtype {
|
|
EBML_TYPE_SUBELEMENTS,
|
|
EBML_TYPE_UINT,
|
|
EBML_TYPE_SINT,
|
|
EBML_TYPE_FLOAT,
|
|
EBML_TYPE_STR,
|
|
EBML_TYPE_BINARY,
|
|
EBML_TYPE_EBML_ID,
|
|
};
|
|
|
|
struct ebml_field_desc {
|
|
uint32_t id;
|
|
bool multiple;
|
|
int offset;
|
|
int count_offset;
|
|
const struct ebml_elem_desc *desc;
|
|
};
|
|
|
|
struct ebml_elem_desc {
|
|
char *name;
|
|
enum ebml_elemtype type;
|
|
int size;
|
|
int field_count;
|
|
const struct ebml_field_desc *fields;
|
|
};
|
|
|
|
struct ebml_parse_ctx {
|
|
void *talloc_ctx;
|
|
int bytes_read;
|
|
bool has_errors;
|
|
bool no_error_messages;
|
|
};
|
|
|
|
#include "ebml_types.h"
|
|
|
|
#define EBML_ID_INVALID 0xffffffff
|
|
|
|
|
|
/* matroska track types */
|
|
#define MATROSKA_TRACK_VIDEO 0x01 /* rectangle-shaped pictures aka video */
|
|
#define MATROSKA_TRACK_AUDIO 0x02 /* anything you can hear */
|
|
#define MATROSKA_TRACK_COMPLEX 0x03 /* audio+video in same track used by DV */
|
|
#define MATROSKA_TRACK_LOGO 0x10 /* overlay-pictures displayed over video*/
|
|
#define MATROSKA_TRACK_SUBTITLE 0x11 /* text-subtitles */
|
|
#define MATROSKA_TRACK_CONTROL 0x20 /* control-codes for menu or other stuff*/
|
|
|
|
/* matroska subtitle types */
|
|
#define MATROSKA_SUBTYPE_UNKNOWN 0
|
|
#define MATROSKA_SUBTYPE_TEXT 1
|
|
#define MATROSKA_SUBTYPE_SSA 2
|
|
#define MATROSKA_SUBTYPE_VOBSUB 3
|
|
|
|
#ifndef UINT64_MAX
|
|
#define UINT64_MAX 18446744073709551615ULL
|
|
#endif
|
|
|
|
#ifndef INT64_MAX
|
|
#define INT64_MAX 9223372036854775807LL
|
|
#endif
|
|
|
|
#define EBML_UINT_INVALID UINT64_MAX
|
|
#define EBML_INT_INVALID INT64_MAX
|
|
#define EBML_FLOAT_INVALID -1000000000.0
|
|
|
|
|
|
uint32_t ebml_read_id (stream_t *s, int *length);
|
|
uint64_t ebml_read_vlen_uint (uint8_t *buffer, int *length);
|
|
int64_t ebml_read_vlen_int (uint8_t *buffer, int *length);
|
|
uint64_t ebml_read_length (stream_t *s, int *length);
|
|
uint64_t ebml_read_uint (stream_t *s, uint64_t *length);
|
|
int64_t ebml_read_int (stream_t *s, uint64_t *length);
|
|
double ebml_read_float (stream_t *s, uint64_t *length);
|
|
char *ebml_read_ascii (stream_t *s, uint64_t *length);
|
|
char *ebml_read_utf8 (stream_t *s, uint64_t *length);
|
|
int ebml_read_skip (stream_t *s, uint64_t *length);
|
|
uint32_t ebml_read_master (stream_t *s, uint64_t *length);
|
|
|
|
int ebml_read_element(struct stream *s, struct ebml_parse_ctx *ctx,
|
|
void *target, const struct ebml_elem_desc *desc);
|
|
|
|
#endif /* MPLAYER_EBML_H */
|