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ad.go
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ad.go
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package pocketsphinx
/*
#cgo pkg-config: sphinxbase
#include <sphinxbase/ad.h>
#include <sphinxbase/cont_ad.h>
typedef int32 (*adfunc)(ad_rec_t *ad, int16 *buf, int32 max);
int32 cont_read_ts(cont_ad_t *cont) {
return cont->read_ts;
}
*/
import "C"
import (
"errors"
"unsafe"
)
type Rec C.ad_rec_t
func OpenRec() *Rec {
return (*Rec)(C.ad_open())
}
func OpenRecSps(samples int32) *Rec {
return (*Rec)(C.ad_open_sps(C.int32(samples)))
}
func OpenRecDev(dev string, samples int32) *Rec {
d := C.CString(dev)
defer C.free(unsafe.Pointer(d))
return (*Rec)(C.ad_open_dev(d, C.int32(samples)))
}
func (rec *Rec) StartRec() error {
err := C.ad_start_rec((*C.ad_rec_t)(rec))
if err != 0 {
return errors.New("Cannot start record.")
}
return nil
}
func (rec *Rec) StopRec() error {
err := C.ad_stop_rec((*C.ad_rec_t)(rec))
if err != 0 {
return errors.New("Cannot stop record.")
}
return nil
}
func (rec *Rec) Close() error {
err := C.ad_close((*C.ad_rec_t)(rec))
if err != 0 {
return errors.New("Cannot close record.")
}
return nil
}
func (rec *Rec) Read(buf []int16, max int32) int32 {
return int32(C.ad_read((*C.ad_rec_t)(rec), (*C.int16)(unsafe.Pointer(&buf[0])), C.int32(max)))
}
type ContAd C.cont_ad_t
func InitCont(rec *Rec) *ContAd {
return (*ContAd)(C.cont_ad_init((*C.ad_rec_t)(rec), C.adfunc(C.ad_read)))
}
func (cont *ContAd) ContCalibrate() error {
err := C.cont_ad_calib((*C.cont_ad_t)(cont))
if err != 0 {
return errors.New("Cannot calibrate cont_ad.")
}
return nil
}
func (cont *ContAd) ContRead(buf []int16, max int32) int32 {
return int32(C.cont_ad_read((*C.cont_ad_t)(cont), (*C.int16)(unsafe.Pointer(&buf[0])), C.int32(max)))
}
func (cont *ContAd) ContReadTs() int32 {
return int32(C.cont_read_ts((*C.cont_ad_t)(cont)))
}
func (cont *ContAd) ContClose() error {
err := C.cont_ad_close((*C.cont_ad_t)(cont))
if err != 0 {
return errors.New("Cannot close cont_ad.")
}
return nil
}
func (cont *ContAd) Reset() int32 {
return int32(C.cont_ad_reset((*C.cont_ad_t)(cont)))
}