From 1b175025fecb1c10e6719d4ab79c188d473fccc4 Mon Sep 17 00:00:00 2001 From: Max Kellermann Date: Thu, 31 Jan 2013 20:33:26 +0100 Subject: pcm_*: convert to C++ --- src/PcmDither.hxx | 45 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 src/PcmDither.hxx (limited to 'src/PcmDither.hxx') diff --git a/src/PcmDither.hxx b/src/PcmDither.hxx new file mode 100644 index 000000000..59affa088 --- /dev/null +++ b/src/PcmDither.hxx @@ -0,0 +1,45 @@ +/* + * 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. + */ + +#ifndef MPD_PCM_DITHER_HXX +#define MPD_PCM_DITHER_HXX + +#include + +struct pcm_dither { + int32_t error[3]; + int32_t random; +}; + +static inline void +pcm_dither_24_init(struct pcm_dither *dither) +{ + dither->error[0] = dither->error[1] = dither->error[2] = 0; + dither->random = 0; +} + +void +pcm_dither_24_to_16(struct pcm_dither *dither, + int16_t *dest, const int32_t *src, const int32_t *src_end); + +void +pcm_dither_32_to_16(struct pcm_dither *dither, + int16_t *dest, const int32_t *src, const int32_t *src_end); + +#endif -- cgit v1.2.3