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livetrax/libs/backends/portaudio/audio_utils.h

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1.6 KiB
C

/*
* Copyright (C) 2015 Tim Mayberry <mojofunk@gmail.com>
* Copyright (C) 2017 Paul Davis <paul@linuxaudiosystems.com>
*
* 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 AUDIO_UTILS_H
#define AUDIO_UTILS_H
#include <stdint.h>
inline
void
deinterleave_audio_data(const float* interleaved_input,
float* output,
uint32_t sample_count,
uint32_t channel,
uint32_t channel_count)
{
const float* ptr = interleaved_input + channel;
while (sample_count-- > 0) {
*output++ = *ptr;
ptr += channel_count;
}
}
inline
void
interleave_audio_data(float* input,
float* interleaved_output,
uint32_t sample_count,
uint32_t channel,
uint32_t channel_count)
{
float* ptr = interleaved_output + channel;
while (sample_count-- > 0) {
*ptr = *input++;
ptr += channel_count;
}
}
#endif // AUDIO_UTILS_H