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#![allow(non_camel_case_types)]
#[cfg(feature = "sys")]
mod sys {
use crate::echo::SpeexEcho;
use speexdsp_sys::preprocess::*;
use std::convert::From;
use std::ffi::c_void;
use std::fmt;
#[derive(Clone, Copy, Debug)]
pub enum SpeexPreprocessConst {
SPEEX_PREPROCESS_SET_DENOISE = 0,
SPEEX_PREPROCESS_GET_DENOISE = 1,
SPEEX_PREPROCESS_SET_AGC = 2,
SPEEX_PREPROCESS_GET_AGC = 3,
SPEEX_PREPROCESS_SET_VAD = 4,
SPEEX_PREPROCESS_GET_VAD = 5,
SPEEX_PREPROCESS_SET_AGC_LEVEL = 6,
SPEEX_PREPROCESS_GET_AGC_LEVEL = 7,
SPEEX_PREPROCESS_SET_DEREVERB = 8,
SPEEX_PREPROCESS_GET_DEREVERB = 9,
SPEEX_PREPROCESS_SET_DEREVERB_LEVEL = 10,
SPEEX_PREPROCESS_GET_DEREVERB_LEVEL = 11,
SPEEX_PREPROCESS_SET_DEREVERB_DECAY = 12,
SPEEX_PREPROCESS_GET_DEREVERB_DECAY = 13,
SPEEX_PREPROCESS_SET_PROB_START = 14,
SPEEX_PREPROCESS_GET_PROB_START = 15,
SPEEX_PREPROCESS_SET_PROB_CONTINUE = 16,
SPEEX_PREPROCESS_GET_PROB_CONTINUE = 17,
SPEEX_PREPROCESS_SET_NOISE_SUPPRESS = 18,
SPEEX_PREPROCESS_GET_NOISE_SUPPRESS = 19,
SPEEX_PREPROCESS_SET_ECHO_SUPPRESS = 20,
SPEEX_PREPROCESS_GET_ECHO_SUPPRESS = 21,
SPEEX_PREPROCESS_SET_ECHO_SUPPRESS_ACTIVE = 22,
SPEEX_PREPROCESS_GET_ECHO_SUPPRESS_ACTIVE = 23,
SPEEX_PREPROCESS_SET_ECHO_STATE = 24,
SPEEX_PREPROCESS_GET_ECHO_STATE = 25,
SPEEX_PREPROCESS_SET_AGC_INCREMENT = 26,
SPEEX_PREPROCESS_GET_AGC_INCREMENT = 27,
SPEEX_PREPROCESS_SET_AGC_DECREMENT = 28,
SPEEX_PREPROCESS_GET_AGC_DECREMENT = 29,
SPEEX_PREPROCESS_SET_AGC_MAX_GAIN = 30,
SPEEX_PREPROCESS_GET_AGC_MAX_GAIN = 31,
SPEEX_PREPROCESS_GET_AGC_LOUDNESS = 33,
SPEEX_PREPROCESS_GET_AGC_GAIN = 35,
SPEEX_PREPROCESS_GET_PSD_SIZE = 37,
SPEEX_PREPROCESS_GET_PSD = 39,
SPEEX_PREPROCESS_GET_NOISE_PSD_SIZE = 41,
SPEEX_PREPROCESS_GET_NOISE_PSD = 43,
SPEEX_PREPROCESS_GET_PROB = 45,
SPEEX_PREPROCESS_SET_AGC_TARGET = 46,
SPEEX_PREPROCESS_GET_AGC_TARGET = 47,
}
#[derive(Clone, Copy, Debug)]
pub enum Error {
FailedInit,
UnknownRequest,
}
impl fmt::Display for Error {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
let v = match self {
Error::FailedInit => "Failed to initialize",
Error::UnknownRequest => "The request is unknown",
};
write!(f, "{}", v)
}
}
pub enum Variant {
U32(u32),
F32(f32),
Echo(SpeexEcho),
}
impl From<u32> for Variant {
fn from(item: u32) -> Self {
Variant::U32(item)
}
}
impl From<f32> for Variant {
fn from(item: f32) -> Self {
Variant::F32(item)
}
}
impl From<&SpeexEcho> for Variant {
fn from(item: &SpeexEcho) -> Self {
Variant::Echo(item.clone())
}
}
pub struct SpeexPreprocess {
st: *mut SpeexPreprocessState,
}
impl SpeexPreprocess {
pub fn new(
frame_size: usize,
sampling_rate: usize,
) -> Result<Self, Error> {
let st = unsafe {
speex_preprocess_state_init(
frame_size as i32,
sampling_rate as i32,
)
};
if st.is_null() {
Err(Error::FailedInit)
} else {
Ok(SpeexPreprocess { st })
}
}
pub fn preprocess_run(&mut self, x: &mut [i16]) -> usize {
unsafe { speex_preprocess_run(self.st, x.as_mut_ptr()) as usize }
}
pub fn preprocess(&mut self, x: &mut [i16], echo: usize) -> usize {
unsafe {
speex_preprocess(self.st, x.as_mut_ptr(), echo as *mut i32)
as usize
}
}
pub fn preprocess_estimate_update(&mut self, x: &mut [i16]) {
unsafe {
speex_preprocess_estimate_update(self.st, x.as_mut_ptr())
};
}
pub fn preprocess_ctl<T: Into<Variant>>(
&mut self,
request: SpeexPreprocessConst,
value: T,
) -> Result<(), Error> {
let ptr_v = match (request, value.into()) {
(
SpeexPreprocessConst::SPEEX_PREPROCESS_SET_DEREVERB_DECAY,
Variant::F32(val),
)
| (
SpeexPreprocessConst::SPEEX_PREPROCESS_SET_DEREVERB_LEVEL,
Variant::F32(val),
) => &val as *const f32 as *mut c_void,
(
SpeexPreprocessConst::SPEEX_PREPROCESS_SET_ECHO_STATE,
Variant::Echo(val),
) => val.get_ptr() as *mut c_void,
(_, Variant::U32(val)) => &val as *const u32 as *mut c_void,
_ => panic!("This type is not accepted"),
};
let ret = unsafe {
speex_preprocess_ctl(self.st, request as i32, ptr_v) as usize
};
if ret != 0 {
Err(Error::UnknownRequest)
} else {
Ok(())
}
}
}
impl Drop for SpeexPreprocess {
fn drop(&mut self) {
unsafe { speex_preprocess_state_destroy(self.st) };
}
}
}
#[cfg(feature = "sys")]
pub use self::sys::{Error, SpeexPreprocess, SpeexPreprocessConst};
