ref: 64ec5ace8d13790782adc96a723752fd05bc0b88
dir: /src/handlers.c/
/*
* Originally created: July 5, 1991
* Copyright 1991 Lance Norskog And Sundry Contributors
* This source code is freely redistributable and may be used for
* any purpose. This copyright notice must be maintained.
* Lance Norskog And Sundry Contributors are not responsible for
* the consequences of using this software.
*/
#include "st.h"
#include "btrworth.h"
/*
* Sound Tools file format and effect tables.
*/
/* File format handlers. */
static char *aiffnames[] = {
"aiff",
"aif",
(char *) 0
};
extern int st_aiffstartread();
extern LONG st_aiffread();
extern int st_aiffstopread();
extern int st_aiffstartwrite();
extern LONG st_aiffwrite();
extern int st_aiffstopwrite();
extern int st_aiffseek();
static char *alnames[] = {
"al",
(char *) 0
};
extern int st_alstartread();
extern int st_alstartwrite();
#if defined(ALSA_PLAYER)
static char *alsanames[] = {
"alsa",
(char *) 0
};
extern int st_alsastartread();
extern int st_alsastartwrite();
#endif
static char *aunames[] = {
"au",
#ifndef DOS
"snd",
#endif
(char *) 0
};
extern int st_austartread();
extern LONG st_auread();
extern int st_austartwrite();
extern LONG st_auwrite();
extern int st_austopwrite();
extern int st_auseek();
static char *autonames[] = {
"auto",
(char *) 0
};
extern int st_autostartread();
extern int st_autostartwrite();
static char *avrnames[] = {
"avr",
(char *) 0
};
extern int st_avrstartread();
extern int st_avrstartwrite();
extern LONG st_avrwrite();
extern int st_avrstopwrite();
static char *cdrnames[] = {
"cdr",
(char *) 0
};
extern int st_cdrstartread();
extern LONG st_cdrread();
extern int st_cdrstopread();
extern int st_cdrstartwrite();
extern LONG st_cdrwrite();
extern int st_cdrstopwrite();
static char *cvsdnames[] = {
"cvs",
"cvsd",
(char *)0
};
extern int st_cvsdstartread();
extern LONG st_cvsdread();
extern int st_cvsdstopread();
extern int st_cvsdstartwrite();
extern LONG st_cvsdwrite();
extern int st_cvsdstopwrite();
static char *datnames[] = {
"dat",
(char *) 0
};
extern int st_datstartread();
extern LONG st_datread();
extern int st_datstartwrite();
extern LONG st_datwrite();
static char *dvmsnames[] = {
"vms",
"dvms",
(char *)0
};
extern int st_dvmsstartread();
extern int st_dvmsstartwrite();
extern int st_dvmsstopwrite();
#ifdef HAVE_LIBGSM
static char *gsmnames[] = {
"gsm",
(char *) 0
};
extern int st_gsmstartread();
extern LONG st_gsmread();
extern int st_gsmstopread();
extern int st_gsmstartwrite();
extern LONG st_gsmwrite();
extern int st_gsmstopwrite();
#endif
static char *hcomnames[] = {
"hcom",
(char *) 0
};
extern int st_hcomstartread();
extern LONG st_hcomread();
extern int st_hcomstopread();
extern int st_hcomstartwrite();
extern LONG st_hcomwrite();
extern int st_hcomstopwrite();
static char *maudnames[] = {
"maud",
(char *) 0,
};
extern int st_maudstartread();
extern LONG st_maudread();
extern int st_maudstopread();
extern LONG st_maudwrite();
extern int st_maudstartwrite();
extern int st_maudstopwrite();
static char *nulnames[] = {
"nul",
(char *) 0,
};
extern int st_nulstartread();
extern LONG st_nulread();
extern int st_nulstopread();
extern LONG st_nulwrite();
extern int st_nulstartwrite();
extern int st_nulstopwrite();
#if defined(OSS_PLAYER)
static char *ossdspnames[] = {
"ossdsp",
(char *) 0
};
extern int st_ossdspstartread();
extern int st_ossdspstartwrite();
#endif
static char *rawnames[] = {
"raw",
(char *) 0
};
/* raw prototypes are defined in st.h since they are used globally. */
static char *sbnames[] = {
"sb",
(char *) 0
};
extern int st_sbstartread();
extern int st_sbstartwrite();
static char *sfnames[] = {
"sf",
(char *) 0
};
extern int st_sfstartread();
extern int st_sfstartwrite();
extern int st_sfseek();
static char *slnames[] = {
"sl",
(char *) 0,
};
extern int st_slstartread();
extern int st_slstartwrite();
static char *smpnames[] = {
"smp",
(char *) 0,
};
extern int st_smpstartread();
extern LONG st_smpread();
extern LONG st_smpwrite();
extern int st_smpstartwrite();
extern int st_smpstopwrite();
extern int st_smpseek();
static char *sndtnames[] = {
"sndt",
#ifdef DOS
"snd",
#endif
(char *) 0
};
extern int st_sndtstartread();
extern int st_sndtstartwrite();
extern LONG st_sndtwrite();
extern int st_sndtstopwrite();
extern int st_sndseek();
static char *spherenames[] = {
"sph",
(char *) 0
};
extern int st_spherestartread();
extern LONG st_sphereread();
extern int st_spherestartwrite();
extern LONG st_spherewrite();
extern int st_spherestopwrite();
#if defined(SUNAUDIO_PLAYER)
static char *sunnames[] = {
"sunau",
(char *) 0
};
extern int st_sunstartread();
extern int st_sunstartwrite();
#endif
static char *svxnames[] = {
"8svx",
(char *) 0
};
extern int st_svxstartread();
extern LONG st_svxread();
extern int st_svxstopread();
extern int st_svxstartwrite();
extern LONG st_svxwrite();
extern int st_svxstopwrite();
static char *swnames[] = {
"sw",
(char *) 0
};
extern int st_swstartread();
extern int st_swstartwrite();
static char *txwnames[] = {
"txw",
(char *)0
};
extern int st_txwstartread();
extern LONG st_txwread();
extern int st_txwstopread();
extern int st_txwstartwrite();
extern LONG st_txwwrite();
extern int st_txwstopwrite();
static char *ubnames[] = {
"ub",
"sou",
"fssd",
#ifdef MAC
"snd",
#endif
(char *) 0
};
extern int st_ubstartread();
extern int st_ubstartwrite();
static char *ulnames[] = {
"ul",
(char *) 0
};
extern int st_ulstartread();
extern int st_ulstartwrite();
static char *uwnames[] = {
"uw",
(char *) 0
};
extern int st_uwstartread();
extern int st_uwstartwrite();
static char *vocnames[] = {
"voc",
(char *) 0
};
extern int st_vocstartread();
extern LONG st_vocread();
extern int st_vocstopread();
extern int st_vocstartwrite();
extern LONG st_vocwrite();
extern int st_vocstopwrite();
static char *wavnames[] = {
"wav",
(char *) 0
};
extern int st_wavstartread();
extern LONG st_wavread();
extern int st_wavstartwrite();
extern LONG st_wavwrite();
extern int st_wavstopwrite();
extern int st_wavseek();
static char *wvenames[] = {
"wve",
(char *) 0
};
extern int st_wvestartread();
extern LONG st_wveread();
extern int st_wvestartwrite();
extern LONG st_wvewrite();
extern int st_wvestopwrite();
extern int st_wveseek();
extern int st_nothing();
extern LONG st_nothing_success();
st_format_t st_formats[] = {
{aiffnames, /* SGI/Apple AIFF */
ST_FILE_STEREO | ST_FILE_LOOPS | ST_FILE_SEEK,
st_aiffstartread, st_aiffread, st_aiffstopread,
st_aiffstartwrite, st_aiffwrite, st_aiffstopwrite, st_aiffseek},
{alnames, ST_FILE_STEREO, /* a-law byte raw */
st_alstartread, st_rawread, st_rawstopread,
st_alstartwrite, st_rawwrite, st_rawstopwrite, st_nothing},
#if defined(ALSA_PLAYER)
{alsanames, ST_FILE_STEREO, /* /dev/snd/pcmXX */
st_alsastartread, st_rawread, st_rawstopread,
st_alsastartwrite, st_rawwrite, st_rawstopwrite, st_nothing},
#endif
{aunames, ST_FILE_STEREO | ST_FILE_SEEK, /* SPARC .au w/header */
st_austartread, st_auread, st_rawstopread,
st_austartwrite, st_auwrite, st_austopwrite, st_auseek},
{autonames, ST_FILE_STEREO, /* Guess from header */
st_autostartread, st_nothing_success, st_nothing,
st_autostartwrite, st_nothing_success, st_nothing, st_nothing},
{avrnames, ST_FILE_STEREO, /* AVR format */
st_avrstartread, st_rawread, st_nothing,
st_avrstartwrite, st_avrwrite, st_avrstopwrite, st_nothing},
{cdrnames, ST_FILE_STEREO | ST_FILE_SEEK, /* CD-R format */
st_cdrstartread, st_cdrread, st_cdrstopread,
st_cdrstartwrite, st_cdrwrite, st_cdrstopwrite, st_rawseek},
{cvsdnames, 0, /* Cont. Variable Slope Delta */
st_cvsdstartread, st_cvsdread, st_cvsdstopread,
st_cvsdstartwrite, st_cvsdwrite, st_cvsdstopwrite, st_nothing},
{datnames, 0, /* Text data samples */
st_datstartread, st_datread, st_nothing,
st_datstartwrite, st_datwrite, st_nothing, st_nothing},
{dvmsnames, 0, /* Cont. Variable Solot Delta */
st_dvmsstartread, st_cvsdread, st_cvsdstopread,
st_dvmsstartwrite, st_cvsdwrite, st_dvmsstopwrite, st_nothing},
#ifdef HAVE_LIBGSM
{gsmnames, 0, /* GSM 06.10 */
st_gsmstartread, st_gsmread, st_gsmstopread,
st_gsmstartwrite, st_gsmwrite, st_gsmstopwrite, st_nothing},
#endif
{hcomnames, 0, /* Mac FSSD/HCOM */
st_hcomstartread, st_hcomread, st_hcomstopread,
st_hcomstartwrite, st_hcomwrite, st_hcomstopwrite, st_nothing},
{maudnames, ST_FILE_STEREO, /* Amiga MAUD */
st_maudstartread, st_maudread, st_maudstopread,
st_maudstartwrite, st_maudwrite, st_maudstopwrite, st_nothing},
{nulnames, ST_FILE_STEREO, /* NUL */
st_nulstartread, st_nulread, st_nulstopread,
st_nulstartwrite, st_nulwrite, st_nulstopwrite},
#if defined(OSS_PLAYER)
{ossdspnames, ST_FILE_STEREO, /* OSS /dev/dsp player */
st_ossdspstartread, st_rawread, st_rawstopread,
st_ossdspstartwrite, st_rawwrite, st_rawstopwrite, st_nothing},
#endif
{rawnames, ST_FILE_STEREO | ST_FILE_SEEK, /* Raw format */
st_rawstartread, st_rawread, st_rawstopread,
st_rawstartwrite, st_rawwrite, st_rawstopwrite, st_rawseek},
{sbnames, ST_FILE_STEREO, /* signed byte raw */
st_sbstartread, st_rawread, st_rawstopread,
st_sbstartwrite, st_rawwrite, st_rawstopwrite, st_nothing},
{sfnames, ST_FILE_STEREO | ST_FILE_SEEK, /* IRCAM Sound File */
st_sfstartread, st_rawread, st_rawstopread,
st_sfstartwrite, st_rawwrite, st_rawstopwrite, st_sfseek},
{ slnames, ST_FILE_STEREO, /* signed long raw */
st_slstartread, st_rawread, st_rawstopread,
st_slstartwrite, st_rawwrite, st_rawstopwrite, st_nothing },
{smpnames, ST_FILE_STEREO | ST_FILE_LOOPS | ST_FILE_SEEK,/* SampleVision sound */
st_smpstartread, st_smpread, st_nothing,
st_smpstartwrite, st_smpwrite, st_smpstopwrite, st_smpseek},
{sndtnames, ST_FILE_STEREO | ST_FILE_SEEK, /* Sndtool Sound File */
st_sndtstartread, st_rawread, st_rawstopread,
st_sndtstartwrite, st_sndtwrite, st_sndtstopwrite, st_sndseek},
{spherenames, ST_FILE_STEREO, /* NIST Sphere File */
st_spherestartread, st_sphereread, st_rawstopread,
st_spherestartwrite, st_spherewrite, st_spherestopwrite, st_nothing},
#if defined(SUNAUDIO_PLAYER)
{sunnames, ST_FILE_STEREO, /* Sun /dev/audio player */
st_sunstartread, st_rawread, st_rawstopread,
st_sunstartwrite, st_rawwrite, st_rawstopwrite, st_nothing},
#endif
{svxnames, ST_FILE_STEREO, /* Amiga 8SVX */
st_svxstartread, st_svxread, st_svxstopread,
st_svxstartwrite, st_svxwrite, st_svxstopwrite, st_nothing},
{swnames, ST_FILE_STEREO, /* signed word raw */
st_swstartread, st_rawread, st_rawstopread,
st_swstartwrite, st_rawwrite, st_rawstopwrite, st_nothing},
{txwnames, 0, /* Yamaha TX16W and SY99 waves */
st_txwstartread, st_txwread, st_txwstopread,
st_txwstartwrite, st_txwwrite, st_txwstopwrite, st_nothing},
{ubnames, ST_FILE_STEREO, /* unsigned byte raw */
st_ubstartread, st_rawread, st_rawstopread,
st_ubstartwrite, st_rawwrite, st_rawstopwrite, st_nothing},
{ulnames, ST_FILE_STEREO, /* u-law byte raw */
st_ulstartread, st_rawread, st_rawstopread,
st_ulstartwrite, st_rawwrite, st_rawstopwrite, st_nothing},
{uwnames, ST_FILE_STEREO, /* unsigned word raw */
st_uwstartread, st_rawread, st_rawstopread,
st_uwstartwrite, st_rawwrite, st_rawstopwrite, st_nothing},
{vocnames, ST_FILE_STEREO, /* Sound Blaster .VOC */
st_vocstartread, st_vocread, st_vocstopread,
st_vocstartwrite, st_vocwrite, st_vocstopwrite, st_nothing},
{wavnames, ST_FILE_STEREO | ST_FILE_SEEK, /* Microsoftt RIFF */
st_wavstartread, st_wavread, st_nothing,
st_wavstartwrite, st_wavwrite, st_wavstopwrite, st_wavseek},
{wvenames, ST_FILE_SEEK, /* Psion .wve */
st_wvestartread, st_wveread, st_rawstopread,
st_wvestartwrite, st_wvewrite, st_wvestopwrite, st_wveseek},
{0, 0,
0, 0, 0, 0, 0, 0}
};
/* Effects handlers. */
extern int st_null_drain(); /* dummy drain routine */
extern int st_avg_getopts();
extern int st_avg_start();
extern int st_avg_flow();
extern int st_avg_stop();
extern int st_band_getopts();
extern int st_band_start();
extern int st_band_flow();
extern int st_band_stop();
extern int st_bandpass_getopts();
extern int st_bandpass_start();
extern int st_bandreject_getopts();
extern int st_bandreject_start();
extern int st_chorus_getopts();
extern int st_chorus_start();
extern int st_chorus_flow();
extern int st_chorus_drain();
extern int st_chorus_stop();
extern int st_compand_getopts();
extern int st_compand_start();
extern int st_compand_flow();
extern int st_compand_drain();
extern int st_compand_stop();
extern int st_copy_getopts();
extern int st_copy_start();
extern int st_copy_flow();
extern int st_copy_stop();
extern int st_cut_getopts();
extern int st_cut_start();
extern int st_cut_flow();
extern int st_cut_stop();
extern int st_deemph_getopts();
extern int st_deemph_start();
extern int st_deemph_flow();
extern int st_deemph_stop();
extern int st_echo_getopts();
extern int st_echo_start();
extern int st_echo_flow();
extern int st_echo_drain();
extern int st_echo_stop();
extern int st_echos_getopts();
extern int st_echos_start();
extern int st_echos_flow();
extern int st_echos_drain();
extern int st_echos_stop();
extern int st_earwax_getopts();
extern int st_earwax_start();
extern int st_earwax_flow();
extern int st_earwax_drain();
extern int st_earwax_stop();
extern int st_fade_getopts();
extern int st_fade_start();
extern int st_fade_flow();
extern int st_fade_drain();
extern int st_fade_stop();
extern int st_filter_getopts();
extern int st_filter_start();
extern int st_filter_flow();
extern int st_filter_drain();
extern int st_filter_stop();
extern int st_flanger_getopts();
extern int st_flanger_start();
extern int st_flanger_flow();
extern int st_flanger_drain();
extern int st_flanger_stop();
extern int st_highp_getopts();
extern int st_highp_start();
extern int st_highp_flow();
extern int st_highp_stop();
extern int st_highpass_getopts();
extern int st_highpass_start();
extern int st_lowp_getopts();
extern int st_lowp_start();
extern int st_lowp_flow();
extern int st_lowp_stop();
extern int st_lowpass_getopts();
extern int st_lowpass_start();
extern int st_map_getopts();
extern int st_map_start();
extern int st_map_flow();
extern int st_mask_getopts();
extern int st_mask_flow();
extern int st_pan_getopts();
extern int st_pan_start();
extern int st_pan_flow();
extern int st_pan_stop();
extern int st_phaser_getopts();
extern int st_phaser_start();
extern int st_phaser_flow();
extern int st_phaser_drain();
extern int st_phaser_stop();
extern int st_pick_getopts();
extern int st_pick_start();
extern int st_pick_flow();
extern int st_pick_stop();
extern int st_pitch_getopts();
extern int st_pitch_start();
extern int st_pitch_flow();
extern int st_pitch_drain();
extern int st_pitch_stop();
extern int st_poly_getopts();
extern int st_poly_start();
extern int st_poly_flow();
extern int st_poly_drain();
extern int st_poly_stop();
extern int st_rate_getopts();
extern int st_rate_start();
extern int st_rate_flow();
extern int st_rate_stop();
extern int st_resample_getopts();
extern int st_resample_start();
extern int st_resample_flow();
extern int st_resample_drain();
extern int st_resample_stop();
extern int st_reverb_getopts();
extern int st_reverb_start();
extern int st_reverb_flow();
extern int st_reverb_drain();
extern int st_reverb_stop();
extern int st_reverse_getopts();
extern int st_reverse_start();
extern int st_reverse_flow();
extern int st_reverse_drain();
extern int st_reverse_stop();
extern int st_speed_getopts();
extern int st_speed_start();
extern int st_speed_flow();
extern int st_speed_drain();
extern int st_speed_stop();
extern int st_split_getopts();
extern int st_split_start();
extern int st_split_flow();
extern int st_split_stop();
extern int st_stat_getopts();
extern int st_stat_start();
extern int st_stat_flow();
extern int st_stat_drain();
extern int st_stat_stop();
extern int st_stretch_getopts();
extern int st_stretch_start();
extern int st_stretch_flow();
extern int st_stretch_drain();
extern int st_stretch_stop();
extern int st_swap_getopts();
extern int st_swap_start();
extern int st_swap_flow();
extern int st_swap_drain();
extern int st_swap_stop();
extern int st_synth_getopts();
extern int st_synth_start();
extern int st_synth_flow();
extern int st_synth_drain();
extern int st_synth_stop();
extern int st_vibro_getopts();
extern int st_vibro_start();
extern int st_vibro_flow();
extern int st_vibro_stop();
extern int st_vol_getopts();
extern int st_vol_start();
extern int st_vol_flow();
extern int st_vol_stop();
extern int st_trim_getopts();
extern int st_trim_start();
extern int st_trim_flow();
extern int st_trim_stop();
/*
* ST_EFF_CHAN means that the number of channels can change.
* ST_EFF_RATE means that the sample rate can change.
* ST_EFF_MCHAN means that the effect is coded for multiple channels.
*
*/
st_effect_t st_effects[] = {
{"null", 0, /* stand-in, never gets called */
st_nothing, st_nothing, st_nothing,
st_null_drain, st_nothing},
{"avg", ST_EFF_CHAN,
st_avg_getopts, st_avg_start, st_avg_flow,
st_null_drain, st_avg_stop},
{"band", 0,
st_band_getopts, st_band_start, st_band_flow,
st_null_drain, st_band_stop},
{"bandpass", 0,
st_bandpass_getopts, st_bandpass_start, st_butterworth_flow,
st_null_drain, st_nothing},
{"bandreject", 0,
st_bandreject_getopts, st_bandreject_start, st_butterworth_flow,
st_null_drain, st_nothing},
{"chorus", 0,
st_chorus_getopts, st_chorus_start, st_chorus_flow,
st_chorus_drain, st_chorus_stop},
{"compand", ST_EFF_MCHAN,
st_compand_getopts, st_compand_start, st_compand_flow,
st_compand_drain, st_compand_stop},
{"copy", ST_EFF_MCHAN,
st_copy_getopts, st_copy_start, st_copy_flow,
st_null_drain, st_nothing},
{"cut", ST_EFF_MCHAN,
st_cut_getopts, st_cut_start, st_cut_flow,
st_null_drain, st_nothing},
{"deemph", ST_EFF_MCHAN,
st_deemph_getopts, st_deemph_start, st_deemph_flow,
st_null_drain, st_deemph_stop},
{"earwax", ST_EFF_MCHAN,
st_earwax_getopts, st_earwax_start, st_earwax_flow,
st_earwax_drain, st_earwax_stop},
{"echo", 0,
st_echo_getopts, st_echo_start, st_echo_flow,
st_echo_drain, st_echo_stop},
{"echos", 0,
st_echos_getopts, st_echos_start, st_echos_flow,
st_echos_drain, st_echos_stop},
{"fade", ST_EFF_MCHAN,
st_fade_getopts, st_fade_start, st_fade_flow,
st_fade_drain, st_fade_stop},
{ "filter", 0,
st_filter_getopts, st_filter_start, st_filter_flow,
st_filter_drain, st_filter_stop},
{"flanger", 0,
st_flanger_getopts, st_flanger_start, st_flanger_flow,
st_flanger_drain, st_flanger_stop},
{"highp", 0,
st_highp_getopts, st_highp_start, st_highp_flow,
st_null_drain, st_highp_stop},
{"highpass", 0,
st_highpass_getopts, st_highpass_start, st_butterworth_flow,
st_null_drain, st_nothing},
{"lowp", 0,
st_lowp_getopts, st_lowp_start, st_lowp_flow,
st_null_drain, st_lowp_stop},
{"lowpass", 0,
st_lowpass_getopts, st_lowpass_start, st_butterworth_flow,
st_null_drain, st_nothing},
{"map", ST_EFF_REPORT,
st_map_getopts, st_map_start, st_map_flow,
st_null_drain, st_nothing},
{"mask", ST_EFF_MCHAN,
st_mask_getopts, st_nothing, st_mask_flow,
st_null_drain, st_nothing},
{"pan", ST_EFF_MCHAN | ST_EFF_CHAN,
st_pan_getopts, st_pan_start, st_pan_flow,
st_null_drain, st_pan_stop},
{"phaser", 0,
st_phaser_getopts, st_phaser_start, st_phaser_flow,
st_phaser_drain, st_phaser_stop},
{"pick", ST_EFF_MCHAN | ST_EFF_CHAN,
st_pick_getopts, st_pick_start, st_pick_flow,
st_null_drain, st_pick_stop},
{"pitch", 0,
st_pitch_getopts, st_pitch_start, st_pitch_flow,
st_pitch_drain, st_pitch_stop},
{"polyphase", ST_EFF_RATE,
st_poly_getopts, st_poly_start, st_poly_flow,
st_poly_drain, st_poly_stop},
{"rate", ST_EFF_RATE,
st_rate_getopts, st_rate_start, st_rate_flow,
st_null_drain, st_nothing},
{"resample", ST_EFF_RATE,
st_resample_getopts, st_resample_start, st_resample_flow,
st_resample_drain, st_resample_stop},
{"reverb", 0,
st_reverb_getopts, st_reverb_start, st_reverb_flow,
st_reverb_drain, st_reverb_stop},
{"reverse", 0,
st_reverse_getopts, st_reverse_start,
st_reverse_flow, st_reverse_drain, st_reverse_stop},
{"speed", 0,
st_speed_getopts, st_speed_start,
st_speed_flow, st_speed_drain, st_speed_stop},
{"split", ST_EFF_MCHAN | ST_EFF_CHAN,
st_split_getopts, st_split_start, st_split_flow,
st_null_drain, st_split_stop},
{"stat", ST_EFF_MCHAN | ST_EFF_REPORT,
st_stat_getopts, st_stat_start, st_stat_flow,
st_stat_drain, st_stat_stop},
{"stretch", 0,
st_stretch_getopts, st_stretch_start, st_stretch_flow,
st_stretch_drain, st_stretch_stop},
{"swap", ST_EFF_MCHAN,
st_swap_getopts, st_swap_start, st_swap_flow,
st_swap_drain, st_swap_stop},
{"synth", ST_EFF_MCHAN,
st_synth_getopts, st_synth_start, st_synth_flow,
st_synth_drain, st_synth_stop},
{"vibro", 0,
st_vibro_getopts, st_vibro_start, st_vibro_flow,
st_null_drain, st_nothing},
{"vol", ST_EFF_MCHAN,
st_vol_getopts, st_vol_start, st_vol_flow,
st_null_drain, st_vol_stop},
{"trim", ST_EFF_MCHAN,
st_trim_getopts, st_trim_start, st_trim_flow,
st_null_drain, st_nothing},
{0, 0, 0, 0, 0, 0, 0}
};