Remove sharp in favor of ffmpeg, fallback to cover

package.json

@@ -45,7 +45,6 @@
     "podcast": "^1.3.0",
     "read-chunk": "^3.1.0",
     "recursive-readdir-async": "^1.1.8",
-    "sharp": "^0.29.3",
     "socket.io": "^4.1.3",
     "string-strip-html": "^8.3.0",
     "watcher": "^1.2.0",

server/CacheManager.js

@@ -1,8 +1,8 @@
 const Path = require('path')
 const fs = require('fs-extra')
 const stream = require('stream')
-const resize = require('./utils/resizeImage')
 const Logger = require('./Logger')
+const { resizeImage } = require('./utils/ffmpegHelpers')
 
 class CacheManager {
   constructor(MetadataPath) {
@@ -18,7 +18,7 @@ class CacheManager {
 
     res.type(`image/${format}`)
 
-    var path = Path.join(this.CoverCachePath, audiobook.id) + '.' + format
+    var path = Path.join(this.CoverCachePath, `${audiobook.id}_${width}${height ? `x${height}` : ''}`) + '.' + format
 
     // Cache exists
     if (await fs.pathExists(path)) {
@@ -35,22 +35,22 @@ class CacheManager {
 
     // Write cache
     await fs.ensureDir(this.CoverCachePath)
-    var readStream = resize(audiobook.book.coverFullPath, width, height, format)
-    var writeStream = fs.createWriteStream(path)
-    writeStream.on('error', (e) => {
-      Logger.error(`[CacheManager] Cache write error ${e.message}`)
-    })
-    readStream.pipe(writeStream)
 
+    let writtenFile = await resizeImage(audiobook.book.coverFullPath || audiobook.book.cover, path, width, height)
+    var readStream = fs.createReadStream(writtenFile)
     readStream.pipe(res)
   }
 
-  purgeCoverCache(audiobookId) {
-    var basepath = Path.join(this.CoverCachePath, audiobookId)
-    // Remove both webp and jpg caches if exist
-    var webpPath = basepath + '.webp'
-    var jpgPath = basepath + '.jpg'
-    return Promise.all([this.removeCache(webpPath), this.removeCache(jpgPath)])
+  async purgeCoverCache(audiobookId) {
+    // If purgeAll has been called... The cover cache directory no longer exists
+    await fs.ensureDir(this.CoverCachePath)
+    return Promise.all((await fs.readdir(this.CoverCachePath)).reduce((promises, file) => {
+      if (file.startsWith(audiobookId)) {
+        Logger.debug(`[CacheManager] Going to purge ${file}`);
+        promises.push(this.removeCache(Path.join(this.CoverCachePath, file)))
+      }
+      return promises
+    }, []))
   }
 
   removeCache(path) {

server/controllers/BookController.js

@@ -234,7 +234,7 @@ class BookController {
   async getCover(req, res) {
     let { query: { width, height, format }, params: { id } } = req
     var audiobook = this.db.audiobooks.find(a => a.id === id)
-    if (!audiobook || !audiobook.book.coverFullPath) return res.sendStatus(404)
+    if (!audiobook || (!audiobook.book.coverFullPath && !audiobook.book.cover)) return res.sendStatus(404)
 
     // Check user can access this audiobooks library
     if (!req.user.checkCanAccessLibrary(audiobook.libraryId)) {
@@ -242,7 +242,7 @@ class BookController {
     }
 
     const options = {
-      format: format || (reqSupportsWebp(req) ? 'webp' : 'jpg'),
+      format: format || (reqSupportsWebp(req) ? 'webp' : 'jpeg'),
       height: height ? parseInt(height) : null,
       width: width ? parseInt(width) : null
     }

server/utils/ffmpegHelpers.js

@@ -93,3 +93,28 @@ async function extractCoverArt(filepath, outputpath) {
   })
 }
 module.exports.extractCoverArt = extractCoverArt
+
+//This should convert based on the output file extension as well
+async function resizeImage(filePath, outputPath, width, height) {
+  var dirname = Path.dirname(outputPath);
+  await fs.ensureDir(dirname);
+
+  return new Promise((resolve) => {
+    var ffmpeg = Ffmpeg(filePath)
+    ffmpeg.addOption(['-vf', `scale=${width || -1}:${height || -1}`])
+    ffmpeg.addOutput(outputPath)
+    ffmpeg.on('start', (cmd) => {
+      Logger.debug(`[FfmpegHelpers] Resize Image Cmd: ${cmd}`)
+    })
+    ffmpeg.on('error', (err, stdout, stderr) => {
+      Logger.error(`[FfmpegHelpers] Resize Image Error ${err}`)
+      resolve(false)
+    })
+    ffmpeg.on('end', () => {
+      Logger.debug(`[FfmpegHelpers] Image resized Successfully`)
+      resolve(outputPath)
+    })
+    ffmpeg.run()
+  })
+}
+module.exports.resizeImage = resizeImage

server/utils/resizeImage.js

@@ -1,16 +0,0 @@
-const sharp = require('sharp')
-const fs = require('fs')
-
-function resize(filePath, width, height, format = 'webp') {
-  const readStream = fs.createReadStream(filePath);
-  let sharpie = sharp()
-  sharpie.toFormat(format)
-
-  if (width || height) {
-    sharpie.resize(width, height, { withoutEnlargement: true })
-  }
-
-  return readStream.pipe(sharpie)
-}
-
-module.exports = resize;