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/*
* (c) Copyright 2001 - 2006 -- Anders Torger
*
* This program is open source. For license terms, see the LICENSE file.
*
*/
#ifndef _BFMOD_H_
#define _BFMOD_H_
#ifdef __cplusplus
extern "C" {
#endif
#include <stdlib.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sched.h>
#define BF_VERSION_MAJOR 2
#define BF_VERSION_MINOR 0
/* limits */
#define BF_MAXCHANNELS 256
#define BF_MAXFILTERS 256
#define BF_MAXMODULES 256
#define BF_MAXOBJECTNAME 128
#define BF_MAXCOEFFPARTS 128
#define BF_MAXPROCESSES 64
#define BF_IN 0
#define BF_OUT 1
#define BF_SAMPLE_FORMAT_MIN BF_SAMPLE_FORMAT_S8
#define BF_SAMPLE_FORMAT_S8 1
#define BF_SAMPLE_FORMAT_S16_LE 2
#define BF_SAMPLE_FORMAT_S16_BE 3
#define BF_SAMPLE_FORMAT_S16_4LE 4 // unused since 1.0m
#define BF_SAMPLE_FORMAT_S16_4BE 5 // unused since 1.0m
#define BF_SAMPLE_FORMAT_S24_LE 6
#define BF_SAMPLE_FORMAT_S24_BE 7
#define BF_SAMPLE_FORMAT_S24_4LE 8
#define BF_SAMPLE_FORMAT_S24_4BE 9
#define BF_SAMPLE_FORMAT_S32_LE 10
#define BF_SAMPLE_FORMAT_S32_BE 11
#define BF_SAMPLE_FORMAT_FLOAT_LE 12
#define BF_SAMPLE_FORMAT_FLOAT_BE 13
#define BF_SAMPLE_FORMAT_FLOAT64_LE 14
#define BF_SAMPLE_FORMAT_FLOAT64_BE 15
#define BF_SAMPLE_FORMAT_MAX BF_SAMPLE_FORMAT_FLOAT64_BE
/* macro sample formats */
#define BF_SAMPLE_FORMAT_S16_NE 16
#define BF_SAMPLE_FORMAT_S16_4NE 17 // unused since 1.0m
#define BF_SAMPLE_FORMAT_S24_NE 18
#define BF_SAMPLE_FORMAT_S24_4NE 19
#define BF_SAMPLE_FORMAT_S32_NE 20
#define BF_SAMPLE_FORMAT_FLOAT_NE 21
#define BF_SAMPLE_FORMAT_FLOAT64_NE 22
#define BF_SAMPLE_FORMAT_AUTO 23
#define BF_SAMPLE_FORMAT_MACRO_MAX 23
/* exit values */
#define BF_EXIT_OK 0
#define BF_EXIT_OTHER 1
#define BF_EXIT_INVALID_CONFIG 2
#define BF_EXIT_NO_MEMORY 3
#define BF_EXIT_INVALID_INPUT 4
#define BF_EXIT_BUFFER_UNDERFLOW 5
/* callback events */
#define BF_CALLBACK_EVENT_NORMAL 0
#define BF_CALLBACK_EVENT_ERROR 1
#define BF_CALLBACK_EVENT_LAST_INPUT 2
#define BF_CALLBACK_EVENT_FINISHED 3
#define BF_LEX_EOS 1 /* end of statement (;) */
#define BF_LEX_LBRACE 2 /* { */
#define BF_LEX_RBRACE 3 /* } */
#define BF_LEX_COMMA 4 /* , */
#define BF_LEX_SLASH 5 /* / */
#define BF_LEXVAL_REAL 100
#define BF_LEXVAL_BOOLEAN 101
#define BF_LEXVAL_STRING 102
#define BF_LEXVAL_FIELD 103
#define BF_SAMPLE_SLOTS 100
#define BF_UNDEFINED_SUBDELAY (-BF_SAMPLE_SLOTS)
union bflexval {
double real;
int boolean;
char *string;
char *field;
};
struct bfoverflow {
unsigned int n_overflows;
int32_t intlargest;
double largest;
double max;
};
struct bfcoeff {
int is_shared;
char name[BF_MAXOBJECTNAME];
int intname;
int n_blocks;
};
struct bfchannel {
char name[BF_MAXOBJECTNAME];
int intname;
};
struct bffilter {
char name[BF_MAXOBJECTNAME];
int intname;
int crossfade;
int n_channels[2];
int *channels[2];
int n_filters[2];
int *filters[2];
};
struct bffilter_control {
int coeff;
int delayblocks;
double scale[2][BF_MAXCHANNELS];
double fscale[BF_MAXFILTERS];
};
struct bfaccess {
volatile struct bffilter_control *fctrl;
volatile struct bfoverflow *overflow;
int realsize;
void ***coeffs_data;
void (*control_mutex)(int lock);
void (*reset_peak)(void);
void (*exit)(int bf_exit_code);
/*
* Mute/unmute the given input/output channel. If the channel index is invalid,
* nothing happens.
*/
void (*toggle_mute)(int io,
int channel);
int (*ismuted)(int io,
int channel);
/*
* Change delay of the given channel. If the delay or channel is out of range,
* -1 is returned, else 0.
*/
int (*set_delay)(int io,
int channel,
int delay);
int (*get_delay)(int io,
int channel);
double (*realtime_index)(void);
const char **(*bfio_names)(int io,
int *n_names);
void (*bfio_range)(int io,
int modindex,
int range[2]);
int (*bfio_command)(int io,
int modindex,
const char params[],
char **error);
const char **(*bflogic_names)(int *n_names);
int (*bflogic_command)(int modindex,
const char params[],
char **error);
void (*convolver_coeffs2cbuf)(void *src,
void *dest);
void *(*convolver_fftplan)(int order,
int invert,
int inplace);
int (*set_subdelay)(int io,
int channel,
int subdelay);
int (*get_subdelay)(int io,
int channel);
};
struct bfevents {
#define BF_FDEVENT_PEAK 0x1
#define BF_FDEVENT_INITIALISED 0x2
unsigned int fdevents;
void (*peak)(void);
void (*initialised)(void);
void (*block_start)(struct bfaccess *bfaccess,
unsigned int block_index,
struct timeval *current_time);
void (*input_timed)(void *buf,
int channel);
void (*input_freqd)(void *buf,
int channel);
void (*coeff_final)(int filter,
int *coeff);
void (*pre_convolve)(void *buf,
int filter);
void (*post_convolve)(void *buf,
int filter);
void (*output_freqd)(void *buf,
int channel);
void (*output_timed)(void *buf,
int channel);
};
#define BF_FUN_BFIO_ISCALLBACK "bfio_iscallback"
#define BF_FUN_BFIO_PREINIT "bfio_preinit"
#define BF_FUN_BFIO_COMMAND "bfio_command"
#define BF_FUN_BFIO_INIT "bfio_init"
#define BF_FUN_BFIO_READ "bfio_read"
#define BF_FUN_BFIO_WRITE "bfio_write"
#define BF_FUN_BFIO_SYNCH_START "bfio_synch_start"
#define BF_FUN_BFIO_SYNCH_STOP "bfio_synch_stop"
#define BF_FUN_BFIO_START "bfio_start"
#define BF_FUN_BFIO_STOP "bfio_stop"
#define BF_FUN_BFIO_MESSAGE "bfio_message"
struct bfio_module {
void *handle;
int iscallback;
void *(*preinit)(int *version_minor,
int *version_major,
int (*get_config_token)(union bflexval *lexval),
int io,
int *sample_format,
int sample_rate,
int open_channels,
int *uses_sample_clock,
int *callback_sched_policy,
struct sched_param *callback_sched,
int debug);
int (*init)(void *params,
int io,
int sample_format,
int sample_rate,
int open_channels,
int used_channels,
const int channel_selection[],
int period_size,
int *device_period_size,
int *isinterleaved,
void *callback_state,
int (*process_callback)(void **callback_states[2],
int callback_state_count[2],
void **buffers[2],
int frame_count,
int event));
int (*command)(int fd,
const char params[]);
/* see errno handling in dai_input in order to provide correct errnos */
int (*read)(int fd,
void *buf,
int offset,
int count);
int (*write)(int fd,
const void *buf,
int offset,
int count);
int (*synch_start)(void);
void (*synch_stop)(void);
int (*start)(int io);
void (*stop)(int io);
const char *(*message)(void);
};
#define BF_FUN_BFLOGIC_PREINIT "bflogic_preinit"
#define BF_FUN_BFLOGIC_INIT "bflogic_init"
#define BF_FUN_BFLOGIC_COMMAND "bflogic_command"
#define BF_FUN_BFLOGIC_MESSAGE "bflogic_message"
struct bflogic_module {
void *handle;
#define BF_FORK_DONT_FORK 0
#define BF_FORK_PRIO_MAX 1
#define BF_FORK_PRIO_FILTER 2
#define BF_FORK_PRIO_OTHER 3
int fork_mode;
int event_pipe[2];
struct bfevents bfevents;
int (*preinit)(int *version_minor,
int *version_major,
int (*get_config_token)(union bflexval *lexval),
int sample_rate,
int block_length,
int n_maxblocks,
int n_coeffs,
const struct bfcoeff coeffs[],
const int n_channels[2],
const struct bfchannel * const *channels,
int n_filters,
const struct bffilter filters[],
struct bfevents *bfevents,
int *fork_mode,
int debug);
int (*init)(struct bfaccess *bfaccess,
int sample_rate,
int block_length,
int n_maxblocks,
int n_coeffs,
const struct bfcoeff coeffs[],
const int n_channels[2],
const struct bfchannel *channels[2],
int n_filters,
const struct bffilter filters[],
int event_fd,
int synch_fd);
int (*command)(const char params[]);
const char *(*message)(void);
};
static inline int
bf_sampleformat_size(int format)
{
switch (format) {
case BF_SAMPLE_FORMAT_S8:
return 1;
case BF_SAMPLE_FORMAT_S16_LE:
return 2;
case BF_SAMPLE_FORMAT_S16_BE:
return 2;
case BF_SAMPLE_FORMAT_S16_4LE:
return 4;
case BF_SAMPLE_FORMAT_S16_4BE:
return 4;
case BF_SAMPLE_FORMAT_S24_LE:
return 3;
case BF_SAMPLE_FORMAT_S24_BE:
return 3;
case BF_SAMPLE_FORMAT_S24_4LE:
return 4;
case BF_SAMPLE_FORMAT_S24_4BE:
return 4;
case BF_SAMPLE_FORMAT_S32_LE:
return 4;
case BF_SAMPLE_FORMAT_S32_BE:
return 4;
case BF_SAMPLE_FORMAT_FLOAT_LE:
return 4;
case BF_SAMPLE_FORMAT_FLOAT_BE:
return 4;
case BF_SAMPLE_FORMAT_FLOAT64_LE:
return 8;
case BF_SAMPLE_FORMAT_FLOAT64_BE:
return 8;
default:
return 0;
}
}
static inline const char *
bf_strsampleformat(int format)
{
switch (format) {
case BF_SAMPLE_FORMAT_S8:
return "S8";
case BF_SAMPLE_FORMAT_S16_LE:
return "S16_LE";
case BF_SAMPLE_FORMAT_S16_BE:
return "S16_BE";
case BF_SAMPLE_FORMAT_S16_NE:
return "S16_NE";
case BF_SAMPLE_FORMAT_S16_4LE:
return "S16_4LE";
case BF_SAMPLE_FORMAT_S16_4BE:
return "S16_4BE";
case BF_SAMPLE_FORMAT_S16_4NE:
return "S16_4NE";
case BF_SAMPLE_FORMAT_S24_LE:
return "S24_LE";
case BF_SAMPLE_FORMAT_S24_BE:
return "S24_BE";
case BF_SAMPLE_FORMAT_S24_NE:
return "S24_NE";
case BF_SAMPLE_FORMAT_S24_4LE:
return "S24_4LE";
case BF_SAMPLE_FORMAT_S24_4BE:
return "S24_4BE";
case BF_SAMPLE_FORMAT_S24_4NE:
return "S24_4NE";
case BF_SAMPLE_FORMAT_S32_LE:
return "S32_LE";
case BF_SAMPLE_FORMAT_S32_BE:
return "S32_BE";
case BF_SAMPLE_FORMAT_S32_NE:
return "S32_NE";
case BF_SAMPLE_FORMAT_FLOAT_LE:
return "FLOAT_LE";
case BF_SAMPLE_FORMAT_FLOAT_BE:
return "FLOAT_BE";
case BF_SAMPLE_FORMAT_FLOAT_NE:
return "FLOAT_NE";
case BF_SAMPLE_FORMAT_FLOAT64_LE:
return "FLOAT64_LE";
case BF_SAMPLE_FORMAT_FLOAT64_BE:
return "FLOAT64_BE";
case BF_SAMPLE_FORMAT_FLOAT64_NE:
return "FLOAT64_NE";
case BF_SAMPLE_FORMAT_AUTO:
return "AUTO";
default:
return "##unknown sample format##";
}
}
#ifdef IS_BFIO_MODULE
/* prototypes of functions the module implements */
int
bfio_iscallback(void);
void *
bfio_preinit(int *version_minor,
int *version_major,
int (*get_config_token)(union bflexval *lexval),
int io,
int *sample_format,
int sample_rate,
int open_channels,
int *uses_sample_clock,
int *callback_sched_policy,
struct sched_param *callback_sched,
int debug);
int
bfio_init(void *params,
int io,
int sample_format,
int sample_rate,
int open_channels,
int used_channels,
const int channel_selection[],
int period_size,
int *device_period_size,
int *isinterleaved,
void *callback_state,
int (*process_callback)(void **callback_states[2],
int callback_state_count[2],
void **buffers[2],
int frame_count,
int event));
int
bfio_cb_init(void *params);
int
bfio_command(int fd,
const char params[]);
int
bfio_read(int fd,
void *buf,
int offset,
int count);
int
bfio_write(int fd,
const void *buf,
int offset,
int count);
int
bfio_synch_start(void);
void
bfio_synch_stop(void);
int
bfio_start(int io);
void
bfio_stop(int io);
const char *
bfio_message(void);
#endif
#ifdef IS_BFLOGIC_MODULE
/* prototypes of functions the module implements */
int
bflogic_preinit(int *version_minor,
int *version_major,
int (*get_config_token)(union bflexval *lexval),
int sample_rate,
int block_length,
int n_maxblocks,
int n_coeffs,
const struct bfcoeff coeffs[],
const int n_channels[2],
const struct bfchannel *channels[2],
int n_filters,
const struct bffilter filters[],
struct bfevents *bfevents,
int *fork_mode,
int debug);
int
bflogic_init(struct bfaccess *bfaccess,
int sample_rate,
int block_length,
int n_maxblocks,
int n_coeffs,
const struct bfcoeff coeffs[],
const int n_channels[2],
const struct bfchannel *channels[2],
int n_filters,
const struct bffilter filters[],
int event_fd,
int synch_fd);
int
bflogic_command(const char params[]);
const char *
bflogic_message(void);
#endif
#ifdef __cplusplus
}
#endif
#endif
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