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/*
* Copyright 2003-2017 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 "OpusHead.hxx"
#include <stdint.h>
struct OpusHead {
char signature[8];
uint8_t version, channels;
uint16_t pre_skip;
uint32_t sample_rate;
uint16_t output_gain;
uint8_t channel_mapping;
};
bool
ScanOpusHeader(const void *data, size_t size, unsigned &channels_r)
{
const OpusHead *h = (const OpusHead *)data;
if (size < 19 || (h->version & 0xf0) != 0)
return false;
channels_r = h->channels;
return true;
}
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