mirror of
https://github.com/xenia-project/FFmpeg.git
synced 2024-11-27 05:20:48 +00:00
46 lines
1.3 KiB
C
46 lines
1.3 KiB
C
/*
|
|
* Copyright (C) 2007 Marc Hoffman
|
|
*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* FFmpeg 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with FFmpeg; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
/**
|
|
* @file
|
|
* byte swapping routines
|
|
*/
|
|
|
|
#ifndef AVUTIL_BFIN_BSWAP_H
|
|
#define AVUTIL_BFIN_BSWAP_H
|
|
|
|
#include <stdint.h>
|
|
#include "config.h"
|
|
#include "libavutil/attributes.h"
|
|
|
|
#define av_bswap32 av_bswap32
|
|
static av_always_inline av_const uint32_t av_bswap32(uint32_t x)
|
|
{
|
|
unsigned tmp;
|
|
__asm__("%1 = %0 >> 8 (V); \n\t"
|
|
"%0 = %0 << 8 (V); \n\t"
|
|
"%0 = %0 | %1; \n\t"
|
|
"%0 = PACK(%0.L, %0.H); \n\t"
|
|
: "+d"(x), "=&d"(tmp));
|
|
return x;
|
|
}
|
|
|
|
#endif /* AVUTIL_BFIN_BSWAP_H */
|