path: root/src/pcm_export.c

/*
 * Copyright (C) 2003-2012 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.
 */

#include "config.h"
#include "pcm_export.h"
#include "pcm_byteswap.h"

void
pcm_export_init(struct pcm_export_state *state)
{
	pcm_buffer_init(&state->reverse_buffer);
}

void pcm_export_deinit(struct pcm_export_state *state)
{
	pcm_buffer_deinit(&state->reverse_buffer);
}

void
pcm_export_open(struct pcm_export_state *state,
		enum sample_format sample_format,
		bool reverse_endian)
{
	state->sample_format = sample_format;
	state->reverse_endian = reverse_endian;
}

const void *
pcm_export(struct pcm_export_state *state, const void *data, size_t size,
	   size_t *dest_size_r)
{
	if (state->reverse_endian)
		data = pcm_byteswap(&state->reverse_buffer,
				    state->sample_format, data, size);

	*dest_size_r = size;
	return data;
}