/* * Copyright (C) 2003-2010 The Music Player Daemon Project * 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., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ /** \file * * Library for working with packed 24 bit samples. */ #ifndef PCM_PACK_H #define PCM_PACK_H #include <stdbool.h> #include <stdint.h> /** * Converts padded 24 bit samples (4 bytes per sample) to packed 24 * bit samples (3 bytes per sample). * * This function can be used to convert a buffer in-place. * * @param dest the destination buffer (array of triples) * @param src the source buffer * @param num_samples the number of samples to convert * @param reverse_endian is src and dest in non-host byte order? */ void pcm_pack_24(uint8_t *dest, const int32_t *src, unsigned num_samples, bool reverse_endian); /** * Converts packed 24 bit samples (3 bytes per sample) to padded 24 * bit samples (4 bytes per sample). * * @param dest the destination buffer * @param src the source buffer (array of triples) * @param num_samples the number of samples to convert * @param reverse_endian is src and dest in non-host byte order? */ void pcm_unpack_24(int32_t *dest, const uint8_t *src, unsigned num_samples, bool reverse_endian); #endif