/* the Music Player Daemon (MPD) * Copyright (C) 2008 Max Kellermann <max@duempel.org> * This project's homepage is: http://www.musicpd.org * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program 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 General Public License for more details. * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef MPD_PCM_DITHER_H #define MPD_PCM_DITHER_H #include <stdint.h> struct pcm_dither_24 { int32_t error[3]; int32_t random; }; static inline void pcm_dither_24_init(struct pcm_dither_24 *dither) { dither->error[0] = dither->error[1] = dither->error[2] = 0; dither->random = 0; } void pcm_dither_24_to_16(struct pcm_dither_24 *dither, int16_t *dest, const int32_t *src, unsigned num_samples); #endif