@ferrite-audio/core
Version:
Core WASM audio processing engine for Ferrite Audio
429 lines (367 loc) • 13.3 kB
JavaScript
let wasm;
const cachedTextDecoder = (typeof TextDecoder !== 'undefined' ? new TextDecoder('utf-8', { ignoreBOM: true, fatal: true }) : { decode: () => { throw Error('TextDecoder not available') } } );
if (typeof TextDecoder !== 'undefined') { cachedTextDecoder.decode(); };
let cachedUint8ArrayMemory0 = null;
function getUint8ArrayMemory0() {
if (cachedUint8ArrayMemory0 === null || cachedUint8ArrayMemory0.byteLength === 0) {
cachedUint8ArrayMemory0 = new Uint8Array(wasm.memory.buffer);
}
return cachedUint8ArrayMemory0;
}
function getStringFromWasm0(ptr, len) {
ptr = ptr >>> 0;
return cachedTextDecoder.decode(getUint8ArrayMemory0().subarray(ptr, ptr + len));
}
let cachedFloat32ArrayMemory0 = null;
function getFloat32ArrayMemory0() {
if (cachedFloat32ArrayMemory0 === null || cachedFloat32ArrayMemory0.byteLength === 0) {
cachedFloat32ArrayMemory0 = new Float32Array(wasm.memory.buffer);
}
return cachedFloat32ArrayMemory0;
}
let WASM_VECTOR_LEN = 0;
function passArrayF32ToWasm0(arg, malloc) {
const ptr = malloc(arg.length * 4, 4) >>> 0;
getFloat32ArrayMemory0().set(arg, ptr / 4);
WASM_VECTOR_LEN = arg.length;
return ptr;
}
let cachedDataViewMemory0 = null;
function getDataViewMemory0() {
if (cachedDataViewMemory0 === null || cachedDataViewMemory0.buffer.detached === true || (cachedDataViewMemory0.buffer.detached === undefined && cachedDataViewMemory0.buffer !== wasm.memory.buffer)) {
cachedDataViewMemory0 = new DataView(wasm.memory.buffer);
}
return cachedDataViewMemory0;
}
function getArrayF32FromWasm0(ptr, len) {
ptr = ptr >>> 0;
return getFloat32ArrayMemory0().subarray(ptr / 4, ptr / 4 + len);
}
const cachedTextEncoder = (typeof TextEncoder !== 'undefined' ? new TextEncoder('utf-8') : { encode: () => { throw Error('TextEncoder not available') } } );
const encodeString = (typeof cachedTextEncoder.encodeInto === 'function'
? function (arg, view) {
return cachedTextEncoder.encodeInto(arg, view);
}
: function (arg, view) {
const buf = cachedTextEncoder.encode(arg);
view.set(buf);
return {
read: arg.length,
written: buf.length
};
});
function passStringToWasm0(arg, malloc, realloc) {
if (realloc === undefined) {
const buf = cachedTextEncoder.encode(arg);
const ptr = malloc(buf.length, 1) >>> 0;
getUint8ArrayMemory0().subarray(ptr, ptr + buf.length).set(buf);
WASM_VECTOR_LEN = buf.length;
return ptr;
}
let len = arg.length;
let ptr = malloc(len, 1) >>> 0;
const mem = getUint8ArrayMemory0();
let offset = 0;
for (; offset < len; offset++) {
const code = arg.charCodeAt(offset);
if (code > 0x7F) break;
mem[ptr + offset] = code;
}
if (offset !== len) {
if (offset !== 0) {
arg = arg.slice(offset);
}
ptr = realloc(ptr, len, len = offset + arg.length * 3, 1) >>> 0;
const view = getUint8ArrayMemory0().subarray(ptr + offset, ptr + len);
const ret = encodeString(arg, view);
offset += ret.written;
ptr = realloc(ptr, len, offset, 1) >>> 0;
}
WASM_VECTOR_LEN = offset;
return ptr;
}
/**
* Example greeting function for testing WASM bindings
* @param {string} name
* @returns {string}
*/
export function greet(name) {
let deferred2_0;
let deferred2_1;
try {
const retptr = wasm.__wbindgen_add_to_stack_pointer(-16);
const ptr0 = passStringToWasm0(name, wasm.__wbindgen_export_0, wasm.__wbindgen_export_2);
const len0 = WASM_VECTOR_LEN;
wasm.greet(retptr, ptr0, len0);
var r0 = getDataViewMemory0().getInt32(retptr + 4 * 0, true);
var r1 = getDataViewMemory0().getInt32(retptr + 4 * 1, true);
deferred2_0 = r0;
deferred2_1 = r1;
return getStringFromWasm0(r0, r1);
} finally {
wasm.__wbindgen_add_to_stack_pointer(16);
wasm.__wbindgen_export_1(deferred2_0, deferred2_1, 1);
}
}
const NoiseReducerFinalization = (typeof FinalizationRegistry === 'undefined')
? { register: () => {}, unregister: () => {} }
: new FinalizationRegistry(ptr => wasm.__wbg_noisereducer_free(ptr >>> 0, 1));
/**
* WebAssembly-compatible noise reduction processor
* Combines noise gate and spectral subtraction for comprehensive noise reduction
*/
export class NoiseReducer {
__destroy_into_raw() {
const ptr = this.__wbg_ptr;
this.__wbg_ptr = 0;
NoiseReducerFinalization.unregister(this);
return ptr;
}
free() {
const ptr = this.__destroy_into_raw();
wasm.__wbg_noisereducer_free(ptr, 0);
}
/**
* Returns the frame size used for processing
* @returns {number}
*/
get frame_size() {
const ret = wasm.noisereducer_frame_size(this.__wbg_ptr);
return ret >>> 0;
}
/**
* Enables or disables bypass mode
* @param {boolean} bypass
*/
set_bypass(bypass) {
wasm.noisereducer_set_bypass(this.__wbg_ptr, bypass);
}
/**
* Get the size of the last allocated buffer
* @returns {number}
*/
get buffer_size() {
const ret = wasm.noisereducer_buffer_size(this.__wbg_ptr);
return ret >>> 0;
}
/**
* Learns noise profile from a buffer of noise-only samples
* @param {Float32Array} noise_samples
*/
learn_noise(noise_samples) {
const ptr0 = passArrayF32ToWasm0(noise_samples, wasm.__wbindgen_export_0);
const len0 = WASM_VECTOR_LEN;
wasm.noisereducer_learn_noise(this.__wbg_ptr, ptr0, len0);
}
/**
* Process audio in-place using a buffer in WASM memory.
* This avoids allocation and copying across the WASM boundary.
*
* # Safety
* The caller must ensure the pointer points to valid memory of at least `len` floats.
* @param {number} ptr
* @param {number} len
*/
processPtr(ptr, len) {
wasm.noisereducer_processPtr(this.__wbg_ptr, ptr, len);
}
/**
* Returns the current sample rate
* @returns {number}
*/
get sample_rate() {
const ret = wasm.noisereducer_sample_rate(this.__wbg_ptr);
return ret;
}
/**
* Allocate a buffer in WASM memory and return its pointer.
* The caller can create a Float32Array view over this memory in JS.
*
* # Safety
* The returned pointer is valid until the next call to alloc_buffer or
* until the NoiseReducer is dropped.
* @param {number} len
* @returns {number}
*/
alloc_buffer(len) {
const ret = wasm.noisereducer_alloc_buffer(this.__wbg_ptr, len);
return ret >>> 0;
}
/**
* Process audio from input buffer to output buffer (both in WASM memory).
* This allows processing without in-place constraints.
*
* # Safety
* The caller must ensure both pointers point to valid memory of at least `len` floats.
* The input and output buffers must not overlap.
* @param {number} in_ptr
* @param {number} out_ptr
* @param {number} len
*/
processInto(in_ptr, out_ptr, len) {
wasm.noisereducer_processInto(this.__wbg_ptr, in_ptr, out_ptr, len);
}
/**
* Enable or disable the noise gate
* @param {boolean} enabled
*/
set_gate_enabled(enabled) {
wasm.noisereducer_set_gate_enabled(this.__wbg_ptr, enabled);
}
/**
* Set noise gate threshold in dB
* @param {number} threshold_db
*/
set_gate_threshold(threshold_db) {
wasm.noisereducer_set_gate_threshold(this.__wbg_ptr, threshold_db);
}
/**
* Sets the noise reduction aggressiveness (0.0 = minimal, 1.0 = maximum)
* @param {number} amount
*/
set_reduction_amount(amount) {
wasm.noisereducer_set_reduction_amount(this.__wbg_ptr, amount);
}
/**
* Enable or disable spectral subtraction
* @param {boolean} enabled
*/
set_spectral_enabled(enabled) {
wasm.noisereducer_set_spectral_enabled(this.__wbg_ptr, enabled);
}
/**
* Enable or disable Wiener filter mode for spectral subtraction
* @param {boolean} enabled
*/
set_wiener_filter_mode(enabled) {
wasm.noisereducer_set_wiener_filter_mode(this.__wbg_ptr, enabled);
}
/**
* Creates a new noise reducer with the specified sample rate
* @param {number} sample_rate
*/
constructor(sample_rate) {
const ret = wasm.noisereducer_new(sample_rate);
this.__wbg_ptr = ret >>> 0;
NoiseReducerFinalization.register(this, this.__wbg_ptr, this);
return this;
}
/**
* Resets the processor state
*/
reset() {
wasm.noisereducer_reset(this.__wbg_ptr);
}
/**
* Processes an audio buffer and returns the denoised output
* @param {Float32Array} input
* @returns {Float32Array}
*/
process(input) {
try {
const retptr = wasm.__wbindgen_add_to_stack_pointer(-16);
const ptr0 = passArrayF32ToWasm0(input, wasm.__wbindgen_export_0);
const len0 = WASM_VECTOR_LEN;
wasm.noisereducer_process(retptr, this.__wbg_ptr, ptr0, len0);
var r0 = getDataViewMemory0().getInt32(retptr + 4 * 0, true);
var r1 = getDataViewMemory0().getInt32(retptr + 4 * 1, true);
var v2 = getArrayF32FromWasm0(r0, r1).slice();
wasm.__wbindgen_export_1(r0, r1 * 4, 4);
return v2;
} finally {
wasm.__wbindgen_add_to_stack_pointer(16);
}
}
}
async function __wbg_load(module, imports) {
if (typeof Response === 'function' && module instanceof Response) {
if (typeof WebAssembly.instantiateStreaming === 'function') {
try {
return await WebAssembly.instantiateStreaming(module, imports);
} catch (e) {
if (module.headers.get('Content-Type') != 'application/wasm') {
console.warn("`WebAssembly.instantiateStreaming` failed because your server does not serve Wasm with `application/wasm` MIME type. Falling back to `WebAssembly.instantiate` which is slower. Original error:\n", e);
} else {
throw e;
}
}
}
const bytes = await module.arrayBuffer();
return await WebAssembly.instantiate(bytes, imports);
} else {
const instance = await WebAssembly.instantiate(module, imports);
if (instance instanceof WebAssembly.Instance) {
return { instance, module };
} else {
return instance;
}
}
}
function __wbg_get_imports() {
const imports = {};
imports.wbg = {};
imports.wbg.__wbindgen_throw = function(arg0, arg1) {
throw new Error(getStringFromWasm0(arg0, arg1));
};
return imports;
}
function __wbg_init_memory(imports, memory) {
}
function __wbg_finalize_init(instance, module) {
wasm = instance.exports;
__wbg_init.__wbindgen_wasm_module = module;
cachedDataViewMemory0 = null;
cachedFloat32ArrayMemory0 = null;
cachedUint8ArrayMemory0 = null;
return wasm;
}
function initSync(module) {
if (wasm !== undefined) return wasm;
if (typeof module !== 'undefined') {
if (Object.getPrototypeOf(module) === Object.prototype) {
({module} = module)
} else {
console.warn('using deprecated parameters for `initSync()`; pass a single object instead')
}
}
const imports = __wbg_get_imports();
__wbg_init_memory(imports);
if (!(module instanceof WebAssembly.Module)) {
module = new WebAssembly.Module(module);
}
const instance = new WebAssembly.Instance(module, imports);
return __wbg_finalize_init(instance, module);
}
async function __wbg_init(module_or_path) {
if (wasm !== undefined) return wasm;
if (typeof module_or_path !== 'undefined') {
if (Object.getPrototypeOf(module_or_path) === Object.prototype) {
({module_or_path} = module_or_path)
} else {
console.warn('using deprecated parameters for the initialization function; pass a single object instead')
}
}
if (typeof module_or_path === 'undefined') {
module_or_path = new URL('wasm_audio_ferrite_bg.wasm', import.meta.url);
}
const imports = __wbg_get_imports();
if (typeof module_or_path === 'string' || (typeof Request === 'function' && module_or_path instanceof Request) || (typeof URL === 'function' && module_or_path instanceof URL)) {
module_or_path = fetch(module_or_path);
}
__wbg_init_memory(imports);
const { instance, module } = await __wbg_load(await module_or_path, imports);
return __wbg_finalize_init(instance, module);
}
export { initSync };
// Patched: Export function to access WASM memory for zero-copy operations
export function getWasmMemory() {
if (wasm && wasm.memory) {
return wasm.memory;
}
return null;
}
// Patched: Export the raw wasm exports for debugging
export function getWasmExports() {
return wasm;
}
export default __wbg_init;