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1 Commits
| Author | SHA1 | Date | |
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| a6de121551 |
@@ -1,6 +1,6 @@
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{
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"name": "@ztimson/ai-utils",
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"version": "0.1.11",
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"version": "0.1.12",
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"description": "AI Utility library",
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"author": "Zak Timson",
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"license": "MIT",
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26
src/ai.ts
26
src/ai.ts
@@ -9,8 +9,8 @@ export type AiOptions = LLMOptions & {
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whisper?: {
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/** Whisper binary location */
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binary: string;
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/** Model */
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model: WhisperModel;
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/** Model: `ggml-base.en.bin` */
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model: string;
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/** Path to models */
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path: string;
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/** Path to storage location for temporary files */
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@@ -18,8 +18,6 @@ export type AiOptions = LLMOptions & {
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}
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}
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export type WhisperModel = 'tiny' | 'base' | 'small' | 'medium' | 'large';
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export class Ai {
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private downloads: {[key: string]: Promise<string>} = {};
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private whisperModel!: string;
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@@ -30,7 +28,7 @@ export class Ai {
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constructor(public readonly options: AiOptions) {
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this.llm = new LLM(this, options);
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if(this.options.whisper?.binary) {
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this.whisperModel = Path.join(<string>this.options.whisper?.path, this.options.whisper?.model + this.options.whisper?.model.endsWith('.bin') ? '' : '.bin');
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this.whisperModel = this.options.whisper?.model.endsWith('.bin') ? this.options.whisper?.model : this.options.whisper?.model + '.bin';
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this.downloadAsrModel();
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}
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}
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@@ -41,13 +39,11 @@ export class Ai {
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* @param model Whisper model
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* @returns {Promise<any>} Extracted text
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*/
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async asr(path: string, model?: WhisperModel): Promise<string | null> {
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async asr(path: string, model: string = this.whisperModel): Promise<string | null> {
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if(!this.options.whisper?.binary) throw new Error('Whisper not configured');
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const m = await this.downloadAsrModel(model);
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const name = Math.random().toString(36).substring(2, 10) + '-' + path.split('/').pop() + '.txt';
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const output = Path.join(this.options.whisper.temp || '/tmp', name);
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console.log(this.options.whisper?.model + ' -> ' + this.whisperModel);
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console.log(`rm -f ${output} && ${this.options.whisper.binary} -nt -np -m ${m} -f ${path} -otxt -of ${output}`);
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await $`rm -f ${output} && ${this.options.whisper.binary} -nt -np -m ${m} -f ${path} -otxt -of ${output}`;
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return fs.readFile(output, 'utf-8').then(text => text?.trim() || null)
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.finally(() => fs.rm(output, {force: true}).catch(() => {}));
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@@ -59,20 +55,20 @@ export class Ai {
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* @param {string} model Whisper model that will be downloaded
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* @return {Promise<string>} Absolute path to model file, resolves once downloaded
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*/
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async downloadAsrModel(model?: string): Promise<string> {
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async downloadAsrModel(model: string = this.whisperModel): Promise<string> {
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if(!this.options.whisper?.binary) throw new Error('Whisper not configured');
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const m = model ? (model.endsWith('.bin') ? model : model + '.bin') : this.whisperModel.split('/').pop()!;
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const p = Path.join(this.options.whisper.path, m);
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if(!model.endsWith('.bin')) model += '.bin';
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const p = Path.join(this.options.whisper.path, model);
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if(await fs.stat(p).then(() => true).catch(() => false)) return p;
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if(!!this.downloads[m]) return this.downloads[m];
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this.downloads[m] = fetch(`https://huggingface.co/ggerganov/whisper.cpp/resolve/main/${m}`)
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if(!!this.downloads[model]) return this.downloads[model];
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this.downloads[model] = fetch(`https://huggingface.co/ggerganov/whisper.cpp/resolve/main/${model}`)
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.then(resp => resp.arrayBuffer())
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.then(arr => Buffer.from(arr)).then(async buffer => {
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await fs.writeFile(p, buffer);
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delete this.downloads[m];
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delete this.downloads[model];
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return p;
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});
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return this.downloads[m];
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return this.downloads[model];
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}
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/**
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