mpd/src/pcm/Dop.hxx

/*
 * Copyright 2003-2019 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_DOP_HXX
#define MPD_PCM_DOP_HXX

#include <stdint.h>

class PcmBuffer;
template<typename T> struct ConstBuffer;

/**
 * Pack DSD 1 bit samples into (padded) 24 bit PCM samples for
 * playback over USB, according to the DoP standard:
 * http://dsd-guide.com/dop-open-standard
 */
ConstBuffer<uint32_t>
pcm_dsd_to_dop(PcmBuffer &buffer, unsigned channels,
	       ConstBuffer<uint8_t> src) noexcept;

#endif