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/*
* Schism Tracker - a cross-platform Impulse Tracker clone
* copyright (c) 2003-2005 Storlek <storlek@rigelseven.com>
* copyright (c) 2005-2008 Mrs. Brisby <mrs.brisby@nimh.org>
* copyright (c) 2009 Storlek & Mrs. Brisby
* copyright (c) 2010-2012 Storlek
* URL: http://schismtracker.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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef SCHISM_SAMPLE_EDIT_H_
#define SCHISM_SAMPLE_EDIT_H_
#include "headers.h"
void sample_sign_convert(song_sample_t * sample);
void sample_reverse(song_sample_t * sample);
void sample_centralise(song_sample_t * sample);
void sample_downmix(song_sample_t * sample);
void sample_amplify(song_sample_t *sample, int32_t percent);
/* Return the maximum amplification that can be done without clipping (as a
* percentage, suitable to pass to sample_amplify). */
int32_t sample_get_amplify_amount(song_sample_t *sample);
/* if convert_data is nonzero, the sample data is modified (so it sounds
* the same); otherwise, the sample length is changed and the data is
* left untouched (so 16 bit samples converted to 8 bit end up sounding
* like junk, and 8 bit samples converted to 16 bit end up with 2x the
* pitch) */
void sample_toggle_quality(song_sample_t * sample, int convert_data);
/* resize a sample; if aa is set, attempt to antialias (resample) the
* output waveform.
*/
void sample_resize(song_sample_t * sample, uint32_t newlen, int aa);
/* AFAIK, this was in some registered versions of IT */
void sample_invert(song_sample_t * sample);
/* Impulse Tracker doesn't do these. */
void sample_delta_decode(song_sample_t * sample);
void sample_mono_left(song_sample_t * sample);
void sample_mono_right(song_sample_t * sample);
void sample_crossfade(song_sample_t *smp, uint32_t fade_length, int32_t law, int fade_after_loop, int sustain_loop);
#endif /* SCHISM_SAMPLE_EDIT_H_ */
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