actual featured page
This commit is contained in:
@@ -16,170 +16,178 @@
|
||||
* ```
|
||||
*/
|
||||
|
||||
import { dlopen, FFIType, ptr } from "bun:ffi"
|
||||
import { existsSync } from "fs"
|
||||
import { join, dirname } from "path"
|
||||
import { dlopen, FFIType, ptr } from "bun:ffi";
|
||||
import { existsSync } from "fs";
|
||||
import { join, dirname } from "path";
|
||||
|
||||
// ── Types ────────────────────────────────────────────────────────────
|
||||
|
||||
export interface CavaCoreConfig {
|
||||
/** Number of frequency bars (default: 32) */
|
||||
bars?: number
|
||||
/** Audio sample rate in Hz (default: 44100) */
|
||||
sampleRate?: number
|
||||
/** Number of audio channels (default: 1 = mono) */
|
||||
channels?: number
|
||||
/** Automatic sensitivity: 1 = enabled, 0 = disabled (default: 1) */
|
||||
autosens?: number
|
||||
/** Noise reduction factor 0.0–1.0 (default: 0.77) */
|
||||
noiseReduction?: number
|
||||
/** Low frequency cutoff in Hz (default: 50) */
|
||||
lowCutOff?: number
|
||||
/** High frequency cutoff in Hz (default: 10000) */
|
||||
highCutOff?: number
|
||||
/** Number of frequency bars (default: 32) */
|
||||
bars?: number;
|
||||
/** Audio sample rate in Hz (default: 44100) */
|
||||
sampleRate?: number;
|
||||
/** Number of audio channels (default: 1 = mono) */
|
||||
channels?: number;
|
||||
/** Automatic sensitivity: 1 = enabled, 0 = disabled (default: 1) */
|
||||
autosens?: number;
|
||||
/** Noise reduction factor 0.0–1.0 (default: 0.77) */
|
||||
noiseReduction?: number;
|
||||
/** Low frequency cutoff in Hz (default: 50) */
|
||||
lowCutOff?: number;
|
||||
/** High frequency cutoff in Hz (default: 10000) */
|
||||
highCutOff?: number;
|
||||
/** Output scaling mode: 0 = linear (default), 1 = decibel */
|
||||
scalingMode?: number;
|
||||
}
|
||||
|
||||
const DEFAULTS: Required<CavaCoreConfig> = {
|
||||
bars: 32,
|
||||
sampleRate: 44100,
|
||||
channels: 1,
|
||||
autosens: 1,
|
||||
noiseReduction: 0.77,
|
||||
lowCutOff: 50,
|
||||
highCutOff: 10000,
|
||||
}
|
||||
bars: 32,
|
||||
sampleRate: 44100,
|
||||
channels: 1,
|
||||
autosens: 1,
|
||||
noiseReduction: 0.77,
|
||||
lowCutOff: 50,
|
||||
highCutOff: 10000,
|
||||
scalingMode: 0,
|
||||
};
|
||||
|
||||
// eslint-disable-next-line @typescript-eslint/no-explicit-any
|
||||
type CavaLib = { symbols: Record<string, (...args: any[]) => any>; close(): void }
|
||||
type CavaLib = {
|
||||
symbols: Record<string, (...args: any[]) => any>;
|
||||
close(): void;
|
||||
};
|
||||
|
||||
// ── Library resolution ───────────────────────────────────────────────
|
||||
|
||||
function findLibrary(): string | null {
|
||||
const platform = process.platform
|
||||
const libName = platform === "darwin"
|
||||
? "libcavacore.dylib"
|
||||
: platform === "win32"
|
||||
? "cavacore.dll"
|
||||
: "libcavacore.so"
|
||||
const platform = process.platform;
|
||||
const libName =
|
||||
platform === "darwin"
|
||||
? "libcavacore.dylib"
|
||||
: platform === "win32"
|
||||
? "cavacore.dll"
|
||||
: "libcavacore.so";
|
||||
|
||||
// Candidate paths, in priority order:
|
||||
// 1. src/native/ (development)
|
||||
// 2. Same directory as the running executable (dist bundle)
|
||||
// 3. dist/ relative to cwd
|
||||
const candidates = [
|
||||
join(import.meta.dir, "..", "native", libName),
|
||||
join(dirname(process.execPath), libName),
|
||||
join(process.cwd(), "dist", libName),
|
||||
]
|
||||
// Candidate paths, in priority order:
|
||||
// 1. src/native/ (development)
|
||||
// 2. Same directory as the running executable (dist bundle)
|
||||
// 3. dist/ relative to cwd
|
||||
const candidates = [
|
||||
join(import.meta.dir, "..", "native", libName),
|
||||
join(dirname(process.execPath), libName),
|
||||
join(process.cwd(), "dist", libName),
|
||||
];
|
||||
|
||||
for (const candidate of candidates) {
|
||||
if (existsSync(candidate)) return candidate
|
||||
}
|
||||
for (const candidate of candidates) {
|
||||
if (existsSync(candidate)) return candidate;
|
||||
}
|
||||
|
||||
return null
|
||||
return null;
|
||||
}
|
||||
|
||||
// ── CavaCore class ───────────────────────────────────────────────────
|
||||
|
||||
export class CavaCore {
|
||||
private lib: CavaLib
|
||||
private plan: ReturnType<CavaLib["symbols"]["cava_init"]> | null = null
|
||||
private inputBuffer: Float64Array | null = null
|
||||
private outputBuffer: Float64Array | null = null
|
||||
private _bars = 0
|
||||
private _channels = 1
|
||||
private _destroyed = false
|
||||
private lib: CavaLib;
|
||||
private plan: ReturnType<CavaLib["symbols"]["cava_init"]> | null = null;
|
||||
private inputBuffer: Float64Array | null = null;
|
||||
private outputBuffer: Float64Array | null = null;
|
||||
private _bars = 0;
|
||||
private _channels = 1;
|
||||
private _destroyed = false;
|
||||
|
||||
/** Use loadCavaCore() instead of constructing directly. */
|
||||
constructor(lib: CavaLib) {
|
||||
this.lib = lib
|
||||
}
|
||||
/** Use loadCavaCore() instead of constructing directly. */
|
||||
constructor(lib: CavaLib) {
|
||||
this.lib = lib;
|
||||
}
|
||||
|
||||
/** Number of frequency bars configured. */
|
||||
get bars(): number {
|
||||
return this._bars
|
||||
}
|
||||
/** Number of frequency bars configured. */
|
||||
get bars(): number {
|
||||
return this._bars;
|
||||
}
|
||||
|
||||
/** Whether this instance has been initialized (and not yet destroyed). */
|
||||
get isReady(): boolean {
|
||||
return this.plan !== null && !this._destroyed
|
||||
}
|
||||
/** Whether this instance has been initialized (and not yet destroyed). */
|
||||
get isReady(): boolean {
|
||||
return this.plan !== null && !this._destroyed;
|
||||
}
|
||||
|
||||
/**
|
||||
* Initialize the cavacore engine with the given configuration.
|
||||
* Must be called before execute(). Can be called again after destroy()
|
||||
* to reinitialize with different parameters.
|
||||
*/
|
||||
init(config: CavaCoreConfig = {}): void {
|
||||
if (this.plan) {
|
||||
this.destroy()
|
||||
}
|
||||
/**
|
||||
* Initialize the cavacore engine with the given configuration.
|
||||
* Must be called before execute(). Can be called again after destroy()
|
||||
* to reinitialize with different parameters.
|
||||
*/
|
||||
init(config: CavaCoreConfig = {}): void {
|
||||
if (this.plan) {
|
||||
this.destroy();
|
||||
}
|
||||
|
||||
const cfg = { ...DEFAULTS, ...config }
|
||||
this._bars = cfg.bars
|
||||
this._channels = cfg.channels
|
||||
const cfg = { ...DEFAULTS, ...config };
|
||||
this._bars = cfg.bars;
|
||||
this._channels = cfg.channels;
|
||||
|
||||
this.plan = this.lib.symbols.cava_init(
|
||||
cfg.bars,
|
||||
cfg.sampleRate,
|
||||
cfg.channels,
|
||||
cfg.autosens,
|
||||
cfg.noiseReduction,
|
||||
cfg.lowCutOff,
|
||||
cfg.highCutOff,
|
||||
)
|
||||
this.plan = this.lib.symbols.cava_init(
|
||||
cfg.bars,
|
||||
cfg.sampleRate,
|
||||
cfg.channels,
|
||||
cfg.autosens,
|
||||
cfg.noiseReduction,
|
||||
cfg.lowCutOff,
|
||||
cfg.highCutOff,
|
||||
cfg.scalingMode,
|
||||
);
|
||||
|
||||
if (!this.plan) {
|
||||
throw new Error("cava_init returned null — initialization failed")
|
||||
}
|
||||
if (!this.plan) {
|
||||
throw new Error("cava_init returned null — initialization failed");
|
||||
}
|
||||
|
||||
// Pre-allocate output buffer (bars * channels)
|
||||
this.outputBuffer = new Float64Array(cfg.bars * cfg.channels)
|
||||
this._destroyed = false
|
||||
}
|
||||
// Pre-allocate output buffer (bars * channels)
|
||||
this.outputBuffer = new Float64Array(cfg.bars * cfg.channels);
|
||||
this._destroyed = false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Feed PCM samples into cavacore and get frequency bar values back.
|
||||
*
|
||||
* @param samples - Float64Array of PCM samples (scaled ~±32768).
|
||||
* The array length determines the number of samples processed.
|
||||
* @returns Float64Array of bar values (0.0–1.0 range, length = bars * channels).
|
||||
* Returns the same buffer reference each call (overwritten in place).
|
||||
*/
|
||||
execute(samples: Float64Array): Float64Array {
|
||||
if (!this.plan || !this.outputBuffer) {
|
||||
throw new Error("CavaCore not initialized — call init() first")
|
||||
}
|
||||
/**
|
||||
* Feed PCM samples into cavacore and get frequency bar values back.
|
||||
*
|
||||
* @param samples - Float64Array of PCM samples (scaled ~±32768).
|
||||
* The array length determines the number of samples processed.
|
||||
* @returns Float64Array of bar values (0.0–1.0 range, length = bars * channels).
|
||||
* Returns the same buffer reference each call (overwritten in place).
|
||||
*/
|
||||
execute(samples: Float64Array): Float64Array {
|
||||
if (!this.plan || !this.outputBuffer) {
|
||||
throw new Error("CavaCore not initialized — call init() first");
|
||||
}
|
||||
|
||||
// Reuse input buffer if same size, otherwise allocate new
|
||||
if (!this.inputBuffer || this.inputBuffer.length !== samples.length) {
|
||||
this.inputBuffer = new Float64Array(samples.length)
|
||||
}
|
||||
this.inputBuffer.set(samples)
|
||||
// Reuse input buffer if same size, otherwise allocate new
|
||||
if (!this.inputBuffer || this.inputBuffer.length !== samples.length) {
|
||||
this.inputBuffer = new Float64Array(samples.length);
|
||||
}
|
||||
this.inputBuffer.set(samples);
|
||||
|
||||
this.lib.symbols.cava_execute(
|
||||
ptr(this.inputBuffer),
|
||||
samples.length,
|
||||
ptr(this.outputBuffer),
|
||||
this.plan,
|
||||
)
|
||||
this.lib.symbols.cava_execute(
|
||||
ptr(this.inputBuffer),
|
||||
samples.length,
|
||||
ptr(this.outputBuffer),
|
||||
this.plan,
|
||||
);
|
||||
|
||||
return this.outputBuffer
|
||||
}
|
||||
return this.outputBuffer;
|
||||
}
|
||||
|
||||
/**
|
||||
* Release all native resources. Safe to call multiple times.
|
||||
* After calling destroy(), init() can be called again to reuse the instance.
|
||||
*/
|
||||
destroy(): void {
|
||||
if (this.plan && !this._destroyed) {
|
||||
this.lib.symbols.cava_destroy(this.plan)
|
||||
this.plan = null
|
||||
this._destroyed = true
|
||||
}
|
||||
this.inputBuffer = null
|
||||
this.outputBuffer = null
|
||||
}
|
||||
/**
|
||||
* Release all native resources. Safe to call multiple times.
|
||||
* After calling destroy(), init() can be called again to reuse the instance.
|
||||
*/
|
||||
destroy(): void {
|
||||
if (this.plan && !this._destroyed) {
|
||||
this.lib.symbols.cava_destroy(this.plan);
|
||||
this.plan = null;
|
||||
this._destroyed = true;
|
||||
}
|
||||
this.inputBuffer = null;
|
||||
this.outputBuffer = null;
|
||||
}
|
||||
}
|
||||
|
||||
// ── Factory ──────────────────────────────────────────────────────────
|
||||
@@ -190,41 +198,42 @@ export class CavaCore {
|
||||
* to the static waveform display.
|
||||
*/
|
||||
export function loadCavaCore(): CavaCore | null {
|
||||
try {
|
||||
const libPath = findLibrary()
|
||||
if (!libPath) return null
|
||||
try {
|
||||
const libPath = findLibrary();
|
||||
if (!libPath) return null;
|
||||
|
||||
const lib = dlopen(libPath, {
|
||||
cava_init: {
|
||||
args: [
|
||||
FFIType.i32, // bars
|
||||
FFIType.u32, // rate
|
||||
FFIType.i32, // channels
|
||||
FFIType.i32, // autosens
|
||||
FFIType.double, // noise_reduction
|
||||
FFIType.i32, // low_cut_off
|
||||
FFIType.i32, // high_cut_off
|
||||
],
|
||||
returns: FFIType.ptr,
|
||||
},
|
||||
cava_execute: {
|
||||
args: [
|
||||
FFIType.ptr, // cava_in (double*)
|
||||
FFIType.i32, // samples
|
||||
FFIType.ptr, // cava_out (double*)
|
||||
FFIType.ptr, // plan
|
||||
],
|
||||
returns: FFIType.void,
|
||||
},
|
||||
cava_destroy: {
|
||||
args: [FFIType.ptr], // plan
|
||||
returns: FFIType.void,
|
||||
},
|
||||
})
|
||||
const lib = dlopen(libPath, {
|
||||
cava_init: {
|
||||
args: [
|
||||
FFIType.i32, // bars
|
||||
FFIType.u32, // rate
|
||||
FFIType.i32, // channels
|
||||
FFIType.i32, // autosens
|
||||
FFIType.double, // noise_reduction
|
||||
FFIType.i32, // low_cut_off
|
||||
FFIType.i32, // high_cut_off
|
||||
FFIType.i32, // scaling_mode
|
||||
],
|
||||
returns: FFIType.ptr,
|
||||
},
|
||||
cava_execute: {
|
||||
args: [
|
||||
FFIType.ptr, // cava_in (double*)
|
||||
FFIType.i32, // samples
|
||||
FFIType.ptr, // cava_out (double*)
|
||||
FFIType.ptr, // plan
|
||||
],
|
||||
returns: FFIType.void,
|
||||
},
|
||||
cava_destroy: {
|
||||
args: [FFIType.ptr], // plan
|
||||
returns: FFIType.void,
|
||||
},
|
||||
});
|
||||
|
||||
return new CavaCore(lib as CavaLib)
|
||||
} catch {
|
||||
// Library load failed — missing dylib, wrong arch, etc.
|
||||
return null
|
||||
}
|
||||
return new CavaCore(lib as CavaLib);
|
||||
} catch {
|
||||
// Library load failed — missing dylib, wrong arch, etc.
|
||||
return null;
|
||||
}
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user