2 * This file is part of FFmpeg.
4 * FFmpeg is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
9 * FFmpeg 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 GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 #ifndef AVUTIL_ARM_BSWAP_H
20 #define AVUTIL_ARM_BSWAP_H
24 #include "libavutil/common.h"
27 #define bswap_16 bswap_16
28 static av_always_inline av_const uint16_t bswap_16(uint16_t x)
30 __asm__("rev16 %0, %0" : "+r"(x));
35 #define bswap_32 bswap_32
36 static av_always_inline av_const uint32_t bswap_32(uint32_t x)
39 __asm__("rev %0, %0" : "+r"(x));
42 __asm__ ("eor %1, %0, %0, ror #16 \n\t"
43 "bic %1, %1, #0xFF0000 \n\t"
44 "mov %0, %0, ror #8 \n\t"
45 "eor %0, %0, %1, lsr #8 \n\t"
47 #endif /* HAVE_ARMV6 */
51 #endif /* AVUTIL_ARM_BSWAP_H */