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/*
* 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.
*/
#include "config.h"
#include "GlueResampler.hxx"
#include "PcmConvert.hxx"
#include "PcmFormat.hxx"
#include "util/ConstBuffer.hxx"
#include "util/Error.hxx"
bool
GluePcmResampler::Open(AudioFormat _src_format, unsigned _new_sample_rate,
gcc_unused Error &error)
{
src_format = _src_format;
new_sample_rate = _new_sample_rate;
return true;
}
void
GluePcmResampler::Close()
{
resampler.Reset();
}
ConstBuffer<void>
GluePcmResampler::Resample(ConstBuffer<void> src, Error &error)
{
const void *result;
size_t size;
switch (src_format.format) {
case SampleFormat::S16:
result = resampler.Resample16(src_format.channels,
src_format.sample_rate,
(const int16_t *)src.data,
src.size,
new_sample_rate, &size,
error);
break;
case SampleFormat::S24_P32:
result = resampler.Resample24(src_format.channels,
src_format.sample_rate,
(const int32_t *)src.data,
src.size,
new_sample_rate, &size,
error);
break;
case SampleFormat::S32:
result = resampler.Resample24(src_format.channels,
src_format.sample_rate,
(const int32_t *)src.data,
src.size,
new_sample_rate, &size,
error);
break;
case SampleFormat::FLOAT:
result = resampler.ResampleFloat(src_format.channels,
src_format.sample_rate,
(const float *)src.data,
src.size,
new_sample_rate, &size,
error);
break;
default:
error.Format(pcm_convert_domain,
"Resampling %s is not implemented",
sample_format_to_string(src_format.format));
return nullptr;
}
return { result, size };
}
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