mirror of
https://gitee.com/openharmony/third_party_ffmpeg
synced 2024-11-23 11:19:55 +00:00
58 lines
1.7 KiB
C
58 lines
1.7 KiB
C
/*
|
|
* Copyright (c) 2001-2003 BERO <bero@geocities.co.jp>
|
|
* Copyright (c) 2011 Oskar Arvidsson
|
|
*
|
|
* 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
|
|
*/
|
|
|
|
#ifndef AVCODEC_RND_AVG_H
|
|
#define AVCODEC_RND_AVG_H
|
|
|
|
#include <stddef.h>
|
|
#include <stdint.h>
|
|
|
|
#define CALL_2X_PIXELS(a, b, n)\
|
|
static void a(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h){\
|
|
b(block , pixels , line_size, h);\
|
|
b(block+n, pixels+n, line_size, h);\
|
|
}
|
|
|
|
#define BYTE_VEC32(c) ((c)*0x01010101UL)
|
|
#define BYTE_VEC64(c) ((c)*0x0001000100010001UL)
|
|
|
|
static inline uint32_t rnd_avg32(uint32_t a, uint32_t b)
|
|
{
|
|
return (a | b) - (((a ^ b) & ~BYTE_VEC32(0x01)) >> 1);
|
|
}
|
|
|
|
static inline uint32_t no_rnd_avg32(uint32_t a, uint32_t b)
|
|
{
|
|
return (a & b) + (((a ^ b) & ~BYTE_VEC32(0x01)) >> 1);
|
|
}
|
|
|
|
static inline uint64_t rnd_avg64(uint64_t a, uint64_t b)
|
|
{
|
|
return (a | b) - (((a ^ b) & ~BYTE_VEC64(0x01)) >> 1);
|
|
}
|
|
|
|
static inline uint64_t no_rnd_avg64(uint64_t a, uint64_t b)
|
|
{
|
|
return (a & b) + (((a ^ b) & ~BYTE_VEC64(0x01)) >> 1);
|
|
}
|
|
|
|
#endif /* AVCODEC_RND_AVG_H */
|