-import 'multer'
-import * as sharp from 'sharp'
-import { readFile, remove } from 'fs-extra'
-import { logger } from './logger'
-
-async function processImage (
- physicalFile: { path: string },
- destination: string,
- newSize: { width: number, height: number },
- keepOriginal = false
-) {
- if (physicalFile.path === destination) {
- throw new Error('Sharp needs an input path different that the output path.')
+import { copy, readFile, remove, rename } from 'fs-extra'
+import Jimp, { read as jimpRead } from 'jimp'
+import { join } from 'path'
+import { ColorActionName } from '@jimp/plugin-color'
+import { getLowercaseExtension } from '@shared/core-utils'
+import { buildUUID } from '@shared/extra-utils'
+import { convertWebPToJPG, generateThumbnailFromVideo, processGIF } from './ffmpeg'
+import { logger, loggerTagsFactory } from './logger'
+
+const lTags = loggerTagsFactory('image-utils')
+
+function generateImageFilename (extension = '.jpg') {
+ return buildUUID() + extension
+}
+
+async function processImage (options: {
+ path: string
+ destination: string
+ newSize: { width: number, height: number }
+ keepOriginal?: boolean // default false
+}) {
+ const { path, destination, newSize, keepOriginal = false } = options
+
+ const extension = getLowercaseExtension(path)
+
+ if (path === destination) {
+ throw new Error('Jimp/FFmpeg needs an input path different that the output path.')
+ }
+
+ logger.debug('Processing image %s to %s.', path, destination)
+
+ // Use FFmpeg to process GIF
+ if (extension === '.gif') {
+ await processGIF({ path, destination, newSize })
+ } else {
+ await jimpProcessor(path, destination, newSize, extension)
}
- logger.debug('Processing image %s to %s.', physicalFile.path, destination)
+ if (keepOriginal !== true) await remove(path)
+}
- // Avoid sharp cache
- const buf = await readFile(physicalFile.path)
- const sharpInstance = sharp(buf)
+async function generateImageFromVideoFile (options: {
+ fromPath: string
+ folder: string
+ imageName: string
+ size: { width: number, height: number }
+}) {
+ const { fromPath, folder, imageName, size } = options
- await remove(destination)
+ const pendingImageName = 'pending-' + imageName
+ const pendingImagePath = join(folder, pendingImageName)
- await sharpInstance
- .resize(newSize.width, newSize.height)
- .toFile(destination)
+ try {
+ await generateThumbnailFromVideo({ fromPath, folder, imageName })
- if (keepOriginal !== true) await remove(physicalFile.path)
+ const destination = join(folder, imageName)
+ await processImage({ path: pendingImagePath, destination, newSize: size })
+ } catch (err) {
+ logger.error('Cannot generate image from video %s.', fromPath, { err, ...lTags() })
+
+ try {
+ await remove(pendingImagePath)
+ } catch (err) {
+ logger.debug('Cannot remove pending image path after generation error.', { err, ...lTags() })
+ }
+ }
+}
+
+async function getImageSize (path: string) {
+ const inputBuffer = await readFile(path)
+
+ const image = await jimpRead(inputBuffer)
+
+ return {
+ width: image.getWidth(),
+ height: image.getHeight()
+ }
}
// ---------------------------------------------------------------------------
export {
- processImage
+ generateImageFilename,
+ generateImageFromVideoFile,
+
+ processImage,
+
+ getImageSize
+}
+
+// ---------------------------------------------------------------------------
+
+async function jimpProcessor (path: string, destination: string, newSize: { width: number, height: number }, inputExt: string) {
+ let sourceImage: Jimp
+ const inputBuffer = await readFile(path)
+
+ try {
+ sourceImage = await jimpRead(inputBuffer)
+ } catch (err) {
+ logger.debug('Cannot read %s with jimp. Try to convert the image using ffmpeg first.', path, { err })
+
+ const newName = path + '.jpg'
+ await convertWebPToJPG({ path, destination: newName })
+ await rename(newName, path)
+
+ sourceImage = await jimpRead(path)
+ }
+
+ await remove(destination)
+
+ // Optimization if the source file has the appropriate size
+ const outputExt = getLowercaseExtension(destination)
+ if (skipProcessing({ sourceImage, newSize, imageBytes: inputBuffer.byteLength, inputExt, outputExt })) {
+ return copy(path, destination)
+ }
+
+ await autoResize({ sourceImage, newSize, destination })
+}
+
+async function autoResize (options: {
+ sourceImage: Jimp
+ newSize: { width: number, height: number }
+ destination: string
+}) {
+ const { sourceImage, newSize, destination } = options
+
+ // Portrait mode targeting a landscape, apply some effect on the image
+ const sourceIsPortrait = sourceImage.getWidth() < sourceImage.getHeight()
+ const destIsPortraitOrSquare = newSize.width <= newSize.height
+
+ removeExif(sourceImage)
+
+ if (sourceIsPortrait && !destIsPortraitOrSquare) {
+ const baseImage = sourceImage.cloneQuiet().cover(newSize.width, newSize.height)
+ .color([ { apply: ColorActionName.SHADE, params: [ 50 ] } ])
+
+ const topImage = sourceImage.cloneQuiet().contain(newSize.width, newSize.height)
+
+ return write(baseImage.blit(topImage, 0, 0), destination)
+ }
+
+ return write(sourceImage.cover(newSize.width, newSize.height), destination)
+}
+
+function write (image: Jimp, destination: string) {
+ return image.quality(80).writeAsync(destination)
+}
+
+function skipProcessing (options: {
+ sourceImage: Jimp
+ newSize: { width: number, height: number }
+ imageBytes: number
+ inputExt: string
+ outputExt: string
+}) {
+ const { sourceImage, newSize, imageBytes, inputExt, outputExt } = options
+ const { width, height } = newSize
+
+ if (hasExif(sourceImage)) return false
+ if (sourceImage.getWidth() > width || sourceImage.getHeight() > height) return false
+ if (inputExt !== outputExt) return false
+
+ const kB = 1000
+
+ if (height >= 1000) return imageBytes <= 200 * kB
+ if (height >= 500) return imageBytes <= 100 * kB
+
+ return imageBytes <= 15 * kB
+}
+
+function hasExif (image: Jimp) {
+ return !!(image.bitmap as any).exifBuffer
+}
+
+function removeExif (image: Jimp) {
+ (image.bitmap as any).exifBuffer = null
}
projects / github / Chocobozzz / PeerTube.git / blobdiff