/*
* 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 BYTE_VEC32(c) ((c) * 0 x01010101UL)
#define BYTE_VEC64(c) ((c) * 0 x0001000100010001UL)
static inline uint32_t rnd_avg32(uint32_t a, uint32_t b)
{
return (a | b) - (((a ^ b) & ~BYTE_VEC32(0 x01)) >> 1 );
}
static inline uint32_t no_rnd_avg32(uint32_t a, uint32_t b)
{
return (a & b) + (((a ^ b) & ~BYTE_VEC32(0 x01)) >> 1 );
}
static inline uint64_t rnd_avg64(uint64_t a, uint64_t b)
{
return (a | b) - (((a ^ b) & ~BYTE_VEC64(0 x01)) >> 1 );
}
static inline uint64_t no_rnd_avg64(uint64_t a, uint64_t b)
{
return (a & b) + (((a ^ b) & ~BYTE_VEC64(0 x01)) >> 1 );
}
#endif /* AVCODEC_RND_AVG_H */
Messung V0.5 in Prozent C=97 H=100 G=98
¤ Dauer der Verarbeitung: 0.15 Sekunden
(vorverarbeitet am 2026-08-24)
¤
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