osdep/swab.c

   1 /*
   2  * This file is part of MPlayer.
   3  *
   4  * MPlayer is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * MPlayer is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17  */
  18
  19 #include "config.h"
  20
  21 /* system has no swab.  emulate via bswap */
  22 #include "mpbswap.h"
  23 #include <unistd.h>
  24
  25 void swab(const void *from, void *to, ssize_t n) {
  26   const int16_t *in = (int16_t*)from;
  27   int16_t *out = (int16_t*)to;
  28   int i;
  29   n /= 2;
  30   for (i = 0 ; i < n; i++) {
  31     out[i] = bswap_16(in[i]);
  32   }
  33 }