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path: root/core/multimedia/opieplayer/libmpeg3/mpeg3io.h
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diff --git a/core/multimedia/opieplayer/libmpeg3/mpeg3io.h b/core/multimedia/opieplayer/libmpeg3/mpeg3io.h
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1/**********************************************************************
2** Copyright (C) 2000 Trolltech AS. All rights reserved.
3**
4** This file is part of Qtopia Environment.
5**
6** This file may be distributed and/or modified under the terms of the
7** GNU General Public License version 2 as published by the Free Software
8** Foundation and appearing in the file LICENSE.GPL included in the
9** packaging of this file.
10**
11** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
12** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
13**
14** See http://www.trolltech.com/gpl/ for GPL licensing information.
15**
16** Contact info@trolltech.com if any conditions of this licensing are
17** not clear to you.
18**
19**********************************************************************/
20#ifndef MPEG3IO_H
21#define MPEG3IO_H
22
23
24#include <stdio.h>
25#include "mpeg3css.h"
26#include "mpeg3private.inc"
27
28/* Filesystem structure */
29
30typedef struct
31{
32 FILE *fd;
33 mpeg3_css_t *css; /* Encryption object */
34 char path[MPEG3_STRLEN];
35/* Hypothetical position of file pointer */
36 long current_byte;
37 long total_bytes;
38} mpeg3_fs_t;
39
40#define mpeg3io_tell(fs) (((mpeg3_fs_t *)(fs))->current_byte)
41
42// End of file
43#define mpeg3io_eof(fs) (((mpeg3_fs_t *)(fs))->current_byte >= ((mpeg3_fs_t *)(fs))->total_bytes)
44
45// Beginning of file
46 #define mpeg3io_bof(fs)(((mpeg3_fs_t *)(fs))->current_byte < 0)
47
48
49#define mpeg3io_total_bytes(fs) (((mpeg3_fs_t *)(fs))->total_bytes)
50
51extern inline unsigned int mpeg3io_read_int32(mpeg3_fs_t *fs)
52{
53 int a, b, c, d;
54 unsigned int result;
55/* Do not fread. This breaks byte ordering. */
56 a = (unsigned char)fgetc(fs->fd);
57 b = (unsigned char)fgetc(fs->fd);
58 c = (unsigned char)fgetc(fs->fd);
59 d = (unsigned char)fgetc(fs->fd);
60 result = ((int)a << 24) |
61 ((int)b << 16) |
62 ((int)c << 8) |
63 ((int)d);
64 fs->current_byte += 4;
65 return result;
66}
67
68extern inline unsigned int mpeg3io_read_char(mpeg3_fs_t *fs)
69{
70 fs->current_byte++;
71 return fgetc(fs->fd);
72}
73
74#endif