6e794c9a2d
Refactor DSP init routines so there is a dedicated init function for the stages that need it. Remove the DSP_INIT configure message. This allows the init code to be safely marked INIT_ATTR, saving a bit of code size, and allowing the linker to verify that there are no unsafe references to the init routines. Change-Id: I1702f0f579bbb300a6fe7d0e67b13aa2e9dd7f8a
46 lines
1.9 KiB
C
46 lines
1.9 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2006 by Nicolas Pitre <nico@cam.org>
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* Copyright (C) 2006-2007 by Stéphane Doyon <s.doyon@videotron.ca>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#ifndef _TDSPEED_H
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#define _TDSPEED_H
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/* some #define functions to get the pitch, stretch and speed values based
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* upon two known values. Remember that params are alphabetical. */
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#define GET_SPEED(pitch, stretch) \
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((pitch * stretch + PITCH_SPEED_100 / 2L) / PITCH_SPEED_100)
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#define GET_PITCH(speed, stretch) \
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((speed * PITCH_SPEED_100 + stretch / 2L) / stretch)
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#define GET_STRETCH(pitch, speed) \
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((speed * PITCH_SPEED_100 + pitch / 2L) / pitch)
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#define STRETCH_MAX (250L * PITCH_SPEED_PRECISION) /* 250% */
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#define STRETCH_MIN (35L * PITCH_SPEED_PRECISION) /* 35% */
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#define TDSPEED_NBUFFERS 4
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void dsp_timestretch_enable(bool enable);
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void dsp_set_timestretch(int32_t percent);
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int32_t dsp_get_timestretch(void);
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bool dsp_timestretch_available(void);
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void dsp_timestretch_init(struct dsp_config *dsp, unsigned int dsp_id) INIT_ATTR;
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void tdspeed_move(int i, void* current, void* new);
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#endif /* _TDSPEED_H */
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