From f32fbd9ed13bc6017f72928a49c43c6bf73fd615 Mon Sep 17 00:00:00 2001 From: Max Kellermann Date: Wed, 16 Oct 2013 20:54:51 +0200 Subject: pcm_pack: convert to C++ --- src/pcm/PcmPack.hxx | 54 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 src/pcm/PcmPack.hxx (limited to 'src/pcm/PcmPack.hxx') diff --git a/src/pcm/PcmPack.hxx b/src/pcm/PcmPack.hxx new file mode 100644 index 000000000..aed011767 --- /dev/null +++ b/src/pcm/PcmPack.hxx @@ -0,0 +1,54 @@ +/* + * Copyright (C) 2003-2013 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_HXX +#define PCM_PACK_HXX + +#include + +/** + * 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 + */ +void +pcm_pack_24(uint8_t *dest, const int32_t *src, const int32_t *src_end); + +/** + * 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 + */ +void +pcm_unpack_24(int32_t *dest, const uint8_t *src, const uint8_t *src_end); + +#endif -- cgit v1.2.3