1ab9d14c77
A bit of a rough job for the moment but all works. Change-Id: Id40852e0dec99caee02f943d0da8a1cdc16f022a
125 lines
4.2 KiB
C
125 lines
4.2 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) 2005 Miika Pekkarinen
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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 _DSP_H
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#define _DSP_H
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#include <stdlib.h>
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#include <stdbool.h>
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#define NATIVE_FREQUENCY 44100
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enum
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{
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STEREO_INTERLEAVED = 0,
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STEREO_NONINTERLEAVED,
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STEREO_MONO,
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STEREO_NUM_MODES,
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};
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enum
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{
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CODEC_IDX_AUDIO = 0,
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CODEC_IDX_VOICE,
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};
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enum
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{
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DSP_MYDSP = 1,
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DSP_SET_FREQUENCY,
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DSP_SWITCH_FREQUENCY,
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DSP_SET_SAMPLE_DEPTH,
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DSP_SET_STEREO_MODE,
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DSP_RESET,
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DSP_FLUSH,
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DSP_SET_TRACK_GAIN,
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DSP_SET_ALBUM_GAIN,
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DSP_SET_TRACK_PEAK,
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DSP_SET_ALBUM_PEAK,
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DSP_CROSSFEED
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};
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/****************************************************************************
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* NOTE: Any assembly routines that use these structures must be updated
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* if current data members are moved or changed.
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*/
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struct resample_data
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{
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uint32_t delta; /* 00h */
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uint32_t phase; /* 04h */
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int32_t last_sample[2]; /* 08h */
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/* 10h */
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};
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/* This is for passing needed data to external dsp routines. If another
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* dsp parameter needs to be passed, add to the end of the structure
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* and remove from dsp_config.
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* If another function type becomes assembly/external and requires dsp
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* config info, add a pointer paramter of type "struct dsp_data *".
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* If removing something from other than the end, reserve the spot or
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* else update every implementation for every target.
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* Be sure to add the offset of the new member for easy viewing as well. :)
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* It is the first member of dsp_config and all members can be accessesed
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* through the main aggregate but this is intended to make a safe haven
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* for these items whereas the c part can be rearranged at will. dsp_data
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* could even moved within dsp_config without disurbing the order.
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*/
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struct dsp_data
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{
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int output_scale; /* 00h */
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int num_channels; /* 04h */
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struct resample_data resample_data; /* 08h */
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int32_t clip_min; /* 18h */
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int32_t clip_max; /* 1ch */
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int32_t gain; /* 20h - Note that this is in S8.23 format. */
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int frac_bits; /* 24h */
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/* 28h */
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};
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struct dsp_config;
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int dsp_process(struct dsp_config *dsp, char *dest,
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const char *src[], int count);
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int dsp_input_count(struct dsp_config *dsp, int count);
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int dsp_output_count(struct dsp_config *dsp, int count);
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intptr_t dsp_configure(struct dsp_config *dsp, int setting,
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intptr_t value);
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int get_replaygain_mode(bool have_track_gain, bool have_album_gain);
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void dsp_set_replaygain(void);
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void dsp_set_crossfeed(bool enable);
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void dsp_set_crossfeed_direct_gain(int gain);
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void dsp_set_crossfeed_cross_params(long lf_gain, long hf_gain,
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long cutoff);
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void dsp_set_eq(bool enable);
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void dsp_set_eq_precut(int precut);
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void dsp_set_eq_coefs(int band);
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void dsp_dither_enable(bool enable);
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void dsp_timestretch_enable(bool enable);
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bool dsp_timestretch_available(void);
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void sound_set_pitch(int32_t r);
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int32_t sound_get_pitch(void);
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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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int dsp_callback(int msg, intptr_t param);
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void dsp_set_compressor(void);
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#endif
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