/* the Music Player Daemon (MPD) * Copyright (C) 2003-2007 by Warren Dukes (warren.dukes@gmail.com) * 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_UTILS_H #define MPD_PCM_UTILS_H #include <glib.h> #include <stdint.h> /** * Check if the value is within the range of the provided bit size, * and caps it if necessary. */ static inline int32_t pcm_range(int32_t sample, unsigned bits) { if (G_UNLIKELY(sample < (-1 << (bits - 1)))) return -1 << (bits - 1); if (G_UNLIKELY(sample >= (1 << (bits - 1)))) return (1 << (bits - 1)) - 1; return sample; } #endif