libavcodec/to_upper4.h

   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