From cac3c159bc84d5163c87a40383d3eda64a4c9f69 Mon Sep 17 00:00:00 2001 From: Max Kellermann Date: Mon, 29 Jul 2013 07:56:40 +0200 Subject: pcm_dsd: convert to C++ --- src/pcm/PcmDsdUsb.hxx | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 src/pcm/PcmDsdUsb.hxx (limited to 'src/pcm/PcmDsdUsb.hxx') diff --git a/src/pcm/PcmDsdUsb.hxx b/src/pcm/PcmDsdUsb.hxx new file mode 100644 index 000000000..d4b414324 --- /dev/null +++ b/src/pcm/PcmDsdUsb.hxx @@ -0,0 +1,41 @@ +/* + * 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_DSD_USB_HXX +#define MPD_PCM_DSD_USB_HXX + +#include "check.h" + +#include +#include + +struct pcm_buffer; + +/** + * Pack DSD 1 bit samples into (padded) 24 bit PCM samples for + * playback over USB, according to the proposed standard by + * dCS and others: + * http://www.sonore.us/DoP_openStandard_1v1.pdf + */ +const uint32_t * +pcm_dsd_to_usb(struct pcm_buffer *buffer, unsigned channels, + const uint8_t *src, size_t src_size, + size_t *dest_size_r); + +#endif -- cgit v1.2.3