mirror of
https://github.com/paricafe/misskey.git
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8a6791da3f
* Remove unused injections * Remove unused imports
164 lines
3.9 KiB
TypeScript
164 lines
3.9 KiB
TypeScript
/*
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* SPDX-FileCopyrightText: syuilo and other misskey contributors
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* SPDX-License-Identifier: AGPL-3.0-only
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*/
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import { Injectable } from '@nestjs/common';
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import sharp from 'sharp';
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export type IImage = {
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data: Buffer;
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ext: string | null;
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type: string;
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};
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export type IImageStream = {
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data: Readable;
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ext: string | null;
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type: string;
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};
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export type IImageSharp = {
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data: sharp.Sharp;
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ext: string | null;
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type: string;
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};
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export type IImageStreamable = IImage | IImageStream | IImageSharp;
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export const webpDefault: sharp.WebpOptions = {
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quality: 77,
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alphaQuality: 95,
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lossless: false,
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nearLossless: false,
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smartSubsample: true,
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mixed: true,
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effort: 2,
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};
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export const avifDefault: sharp.AvifOptions = {
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quality: 60,
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lossless: false,
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effort: 2,
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};
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import { bindThis } from '@/decorators.js';
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import { Readable } from 'node:stream';
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@Injectable()
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export class ImageProcessingService {
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constructor(
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) {
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}
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/**
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* Convert to WebP
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* with resize, remove metadata, resolve orientation, stop animation
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*/
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@bindThis
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public async convertToWebp(path: string, width: number, height: number, options: sharp.WebpOptions = webpDefault): Promise<IImage> {
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return this.convertSharpToWebp(sharp(path), width, height, options);
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}
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@bindThis
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public async convertSharpToWebp(sharp: sharp.Sharp, width: number, height: number, options: sharp.WebpOptions = webpDefault): Promise<IImage> {
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const result = this.convertSharpToWebpStream(sharp, width, height, options);
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return {
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data: await result.data.toBuffer(),
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ext: result.ext,
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type: result.type,
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};
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}
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@bindThis
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public convertToWebpStream(path: string, width: number, height: number, options: sharp.WebpOptions = webpDefault): IImageSharp {
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return this.convertSharpToWebpStream(sharp(path), width, height, options);
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}
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@bindThis
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public convertSharpToWebpStream(sharp: sharp.Sharp, width: number, height: number, options: sharp.WebpOptions = webpDefault): IImageSharp {
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const data = sharp
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.resize(width, height, {
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fit: 'inside',
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withoutEnlargement: true,
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})
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.rotate()
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.webp(options);
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return {
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data,
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ext: 'webp',
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type: 'image/webp',
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};
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}
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/**
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* Convert to Avif
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* with resize, remove metadata, resolve orientation, stop animation
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*/
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@bindThis
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public async convertToAvif(path: string, width: number, height: number, options: sharp.AvifOptions = avifDefault): Promise<IImage> {
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return this.convertSharpToAvif(sharp(path), width, height, options);
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}
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@bindThis
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public async convertSharpToAvif(sharp: sharp.Sharp, width: number, height: number, options: sharp.AvifOptions = avifDefault): Promise<IImage> {
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const result = this.convertSharpToAvifStream(sharp, width, height, options);
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return {
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data: await result.data.toBuffer(),
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ext: result.ext,
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type: result.type,
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};
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}
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@bindThis
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public convertToAvifStream(path: string, width: number, height: number, options: sharp.AvifOptions = avifDefault): IImageSharp {
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return this.convertSharpToAvifStream(sharp(path), width, height, options);
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}
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@bindThis
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public convertSharpToAvifStream(sharp: sharp.Sharp, width: number, height: number, options: sharp.AvifOptions = avifDefault): IImageSharp {
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const data = sharp
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.resize(width, height, {
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fit: 'inside',
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withoutEnlargement: true,
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})
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.rotate()
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.avif(options);
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return {
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data,
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ext: 'avif',
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type: 'image/avif',
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};
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}
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/**
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* Convert to PNG
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* with resize, remove metadata, resolve orientation, stop animation
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*/
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@bindThis
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public async convertToPng(path: string, width: number, height: number): Promise<IImage> {
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return this.convertSharpToPng(sharp(path), width, height);
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}
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@bindThis
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public async convertSharpToPng(sharp: sharp.Sharp, width: number, height: number): Promise<IImage> {
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const data = await sharp
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.resize(width, height, {
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fit: 'inside',
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withoutEnlargement: true,
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})
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.rotate()
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.png()
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.toBuffer();
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return {
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data,
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ext: 'png',
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type: 'image/png',
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};
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}
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}
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