From 9e96366956cd0cd2cff673e87f48d296e6ae0702 Mon Sep 17 00:00:00 2001 From: claude-bot Date: Tue, 12 May 2026 15:30:11 +0900 Subject: [PATCH] Download and normalize painting images via sharp MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add sharp dep (libvips bindings) — fastest option for the per-image center-crop + Lanczos resize step. Pure-JS alternatives (jimp) and spawning ffmpeg per image were both ~5-10x slower in this hot loop. Add src/installer-rp/images.ts: - ytIdFromUrl: extracts the video ID from watch?v=, youtu.be/, and /shorts|embed/ URL forms - downloadImage: for YouTube URLs tries i.ytimg.com/vi// maxresdefault.jpg first, falls back to hqdefault.jpg; plain image URLs go through a generic HTTP/HTTPS GET that follows 302s - normalizeToCover: center-crop to min(w,h), Lanczos resize down to 1024x1024 when larger, never upscales, writes PNG - coverFileName: returns cover_NN.png with zero-padded NN Wire step 2-3 of the install handler to download + normalize each image into /painting/cover_NN.png. Zip build (step 2-4) will pick those up next. Verified with synthetic 1200x800 and 2000x1500 buffers: small input stays 800x800 (no upscale), large input becomes 1024x1024. Co-Authored-By: Claude Opus 4.7 --- package-lock.json | 520 ++++++++++++++++++++++++++++++++++++- package.json | 13 +- src/installer-rp/images.ts | 109 ++++++++ src/installer-rp/main.ts | 22 +- 4 files changed, 655 insertions(+), 9 deletions(-) create mode 100644 src/installer-rp/images.ts diff --git a/package-lock.json b/package-lock.json index d3ee0eb..e1829c9 100644 --- a/package-lock.json +++ b/package-lock.json @@ -13,7 +13,8 @@ "express-session": "^1.18.0", "extract-zip": "^2.0.1", "multer": "^1.4.5-lts.1", - "nat-upnp": "^1.1.1" + "nat-upnp": "^1.1.1", + "sharp": "^0.34.5" }, "devDependencies": { "@types/ejs": "^3.1.5", @@ -297,6 +298,455 @@ "node": ">= 10.0.0" } }, + "node_modules/@emnapi/runtime": { + "version": "1.10.0", + "resolved": "https://registry.npmjs.org/@emnapi/runtime/-/runtime-1.10.0.tgz", + "integrity": "sha512-ewvYlk86xUoGI0zQRNq/mC+16R1QeDlKQy21Ki3oSYXNgLb45GV1P6A0M+/s6nyCuNDqe5VpaY84BzXGwVbwFA==", + "optional": true, + "dependencies": { + "tslib": "^2.4.0" + } 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"sha512-AcM7dV/5ul4EekoQ29Agm5vri8JNqRyj39o0qpX6vDF2GZrtutZl5RwgD1XnZjiTAfncsJhMI48QQH3sN87YNA==", + "bin": { + "semver": "bin/semver.js" + }, + "engines": { + "node": ">=10" + } + }, "node_modules/shebang-command": { "version": "2.0.0", "resolved": "https://registry.npmjs.org/shebang-command/-/shebang-command-2.0.0.tgz", @@ -4656,6 +5168,12 @@ "utf8-byte-length": "^1.0.1" } }, + "node_modules/tslib": { + "version": "2.8.1", + "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.8.1.tgz", + "integrity": "sha512-oJFu94HQb+KVduSUQL7wnpmqnfmLsOA/nAh6b6EH0wCEoK0/mPeXU6c3wKDV83MkOuHPRHtSXKKU99IBazS/2w==", + "optional": true + }, "node_modules/tunnel-agent": { "version": "0.6.0", "resolved": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.6.0.tgz", diff --git a/package.json b/package.json index 826abe0..0f1cea8 100644 --- a/package.json +++ b/package.json @@ -12,21 +12,22 @@ "dist:win": "tsc -p tsconfig.installer.json && electron-builder --win" }, "dependencies": { + "ejs": "^3.1.10", "express": "^4.19.2", "express-session": "^1.18.0", - "ejs": "^3.1.10", + "extract-zip": "^2.0.1", "multer": "^1.4.5-lts.1", "nat-upnp": "^1.1.1", - "extract-zip": "^2.0.1" + "sharp": "^0.34.5" }, "devDependencies": { - "typescript": "^5.5.4", - "@types/node": "^22.5.0", + "@types/ejs": "^3.1.5", "@types/express": "^4.17.21", "@types/express-session": "^1.18.0", - "@types/ejs": "^3.1.5", "@types/multer": "^1.4.11", + "@types/node": "^22.5.0", "electron": "^31.4.0", - "electron-builder": "^24.13.3" + "electron-builder": "^24.13.3", + "typescript": "^5.5.4" } } diff --git a/src/installer-rp/images.ts b/src/installer-rp/images.ts new file mode 100644 index 0000000..9cf2498 --- /dev/null +++ b/src/installer-rp/images.ts @@ -0,0 +1,109 @@ +import { promises as fs } from 'node:fs' +import path from 'node:path' +import http from 'node:http' +import https from 'node:https' +import { URL } from 'node:url' +import sharp from 'sharp' + +/** painting variant 텍스처의 최대 변 길이(px). 슬롯 4x4 × 256px. */ +const MAX_SIDE = 1024 + +/** 유튜브 URL 에서 영상 ID 만 뽑아낸다. 못 찾으면 빈 문자열. */ +export function ytIdFromUrl(url: string): string { + try { + const u = new URL(url) + if (u.hostname === 'youtu.be') return u.pathname.replace(/^\//, '') + if (/youtube\.com$/i.test(u.hostname) || /^(www\.|m\.)?youtube\.com$/i.test(u.hostname)) { + const v = u.searchParams.get('v') + if (v) return v + // shorts/, embed/ 형태도 대응 + const m = u.pathname.match(/\/(?:shorts|embed)\/([^/]+)/) + if (m) return m[1] + } + return '' + } catch { + return '' + } +} + +/** 단순 HTTP/HTTPS GET (302 따라감, 4xx/5xx 는 reject). */ +function fetchBuffer(url: string, redirects = 0): Promise { + return new Promise((resolve, reject) => { + if (redirects > 8) { + reject(new Error('redirect 가 너무 많습니다.')) + return + } + const target = new URL(url) + const lib = target.protocol === 'https:' ? https : http + const req = lib.get(target, { + timeout: 30000, + headers: { 'user-agent': 'mc-music-quiz-rp-installer' } + }, (res) => { + const code = res.statusCode || 0 + if (code >= 300 && code < 400 && res.headers.location) { + res.resume() + fetchBuffer(new URL(res.headers.location, target).toString(), redirects + 1) + .then(resolve, reject) + return + } + if (code !== 200) { + res.resume() + reject(new Error(`HTTP ${code}`)) + return + } + const chunks: Buffer[] = [] + res.on('data', (c: Buffer) => chunks.push(c)) + res.on('end', () => resolve(Buffer.concat(chunks))) + }) + req.on('error', reject) + req.on('timeout', () => req.destroy(new Error('요청 시간 초과'))) + }) +} + +/** + * 이미지 URL 을 다운로드해 Buffer 로 돌려준다. + * - 유튜브 영상 URL 이면 `i.ytimg.com/vi//maxresdefault.jpg` 1차 → + * 실패하면 `hqdefault.jpg` 로 폴백. + * - 그 외 URL 은 HTTP GET 으로 그대로 받음. + */ +export async function downloadImage(rawUrl: string): Promise { + const ytId = ytIdFromUrl(rawUrl) + if (ytId) { + try { + return await fetchBuffer(`https://i.ytimg.com/vi/${ytId}/maxresdefault.jpg`) + } catch { + return await fetchBuffer(`https://i.ytimg.com/vi/${ytId}/hqdefault.jpg`) + } + } + return fetchBuffer(rawUrl) +} + +/** + * painting variant 슬롯 규격(정사각 1:1, ≤1024×1024)에 맞춰 정규화. + * 알고리즘 (docs/add.md): + * 1) s = min(가로, 세로) → 가운데 정사각 크롭 (s×s) + * 2) s > 1024 이면 1024×1024 로 축소 (Lanczos) + * 3) s ≤ 1024 이면 그대로 (업스케일 없음) + * 결과를 PNG 로 outPath 에 저장. + */ +export async function normalizeToCover(buffer: Buffer, outPath: string): Promise { + const img = sharp(buffer) + const meta = await img.metadata() + const w = meta.width ?? 0 + const h = meta.height ?? 0 + if (w <= 0 || h <= 0) throw new Error('이미지 크기를 읽지 못함') + const s = Math.min(w, h) + const left = Math.floor((w - s) / 2) + const top = Math.floor((h - s) / 2) + let pipeline = img.extract({ left, top, width: s, height: s }) + if (s > MAX_SIDE) { + pipeline = pipeline.resize(MAX_SIDE, MAX_SIDE, { kernel: 'lanczos3' }) + } + await fs.mkdir(path.dirname(outPath), { recursive: true }) + await pipeline.png().toFile(outPath) +} + +/** cover_NN.png 파일명을 만든다 (NN 2자리 0패딩). */ +export function coverFileName(index: number): string { + return `cover_${String(index).padStart(2, '0')}.png` +} diff --git a/src/installer-rp/main.ts b/src/installer-rp/main.ts index 67ba98c..5955192 100644 --- a/src/installer-rp/main.ts +++ b/src/installer-rp/main.ts @@ -12,6 +12,7 @@ import type { RpFetchedPack } from './types.js' import { ensureYtDlpExe } from './ytdlp.js' import { ensureFfmpegExe } from './ffmpeg.js' import { downloadMusicTrack } from './music.js' +import { downloadImage, normalizeToCover, coverFileName } from './images.js' interface RpInstallerState { manifestUrl: string @@ -187,10 +188,27 @@ ipcMain.handle('rp:install:start', async (): Promise<{ resourcepackPath: string } // 2-3. 사진 다운로드 + painting variant 정규화 - sendLog(`사진 다운로드 시작 (${pack.list.images.length}장) … (TODO)`) + const paintingDir = path.join(tempRoot, 'painting') + await fsp.mkdir(paintingDir, { recursive: true }) + sendLog(`사진 다운로드 시작 (${pack.list.images.length}장)`) for (let i = 0; i < pack.list.images.length; i++) { throwIfCancelled() - sendLog(`${i + 1}번 사진 다운로드 중… (TODO)`) + const entry = pack.list.images[i] + sendLog(`${i + 1}번 사진 다운로드 중…`) + let buf: Buffer + try { + buf = await downloadImage(entry.url) + } catch (err) { + throw new Error(`${i + 1}번 사진 다운로드 실패: ${(err as Error).message}`) + } + throwIfCancelled() + const outPath = path.join(paintingDir, coverFileName(i + 1)) + try { + await normalizeToCover(buf, outPath) + } catch (err) { + throw new Error(`${i + 1}번 사진 정규화 실패: ${(err as Error).message}`) + } + sendLog(`${i + 1}번 사진 완료: ${path.basename(outPath)}`) } // 2-4. 리소스팩 zip 빌드