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/*
* Copyright 2003-2021 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 <cstdint>
/**
* 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
*/
void
pcm_pack_24(uint8_t *dest,
const int32_t *src, const int32_t *src_end) noexcept;
/**
* 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)
*/
void
pcm_unpack_24(int32_t *dest,
const uint8_t *src, const uint8_t *src_end) noexcept;
/**
* Like pcm_unpack_24(), but assume the source byte order is
* big-endian. The destination byte order ia always native.
*/
void
pcm_unpack_24be(int32_t *dest,
const uint8_t *src, const uint8_t *src_end) noexcept;
#endif
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