FFmpeg
to_upper4.h
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1 /*
2  * Converting FOURCCs to uppercase
3  * Copyright (c) 2001 Fabrice Bellard
4  * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 #ifndef AVCODEC_TO_UPPER4_H
24 #define AVCODEC_TO_UPPER4_H
25 
26 #include "libavutil/avstring.h"
27 #include "internal.h"
28 
29 unsigned int ff_toupper4(unsigned int x)
30 {
31  return av_toupper(x & 0xFF) |
32  (av_toupper((x >> 8) & 0xFF) << 8) |
33  (av_toupper((x >> 16) & 0xFF) << 16) |
34 ((unsigned)av_toupper((x >> 24) & 0xFF) << 24);
35 }
36 
37 #endif
ff_toupper4
unsigned int ff_toupper4(unsigned int x)
Definition: to_upper4.h:29
internal.h
av_toupper
static av_const int av_toupper(int c)
Locale-independent conversion of ASCII characters to uppercase.
Definition: avstring.h:237
avstring.h