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-rw-r--r--server/helpers/image-utils.ts40
1 files changed, 33 insertions, 7 deletions
diff --git a/server/helpers/image-utils.ts b/server/helpers/image-utils.ts
index 3ebf07305..9285c12fc 100644
--- a/server/helpers/image-utils.ts
+++ b/server/helpers/image-utils.ts
@@ -1,10 +1,9 @@
1import { remove, rename } from 'fs-extra' 1import { copy, readFile, remove, rename } from 'fs-extra'
2import * as Jimp from 'jimp'
2import { extname } from 'path' 3import { extname } from 'path'
3import { convertWebPToJPG, processGIF } from './ffmpeg-utils' 4import { convertWebPToJPG, processGIF } from './ffmpeg-utils'
4import { logger } from './logger' 5import { logger } from './logger'
5 6
6const Jimp = require('jimp')
7
8async function processImage ( 7async function processImage (
9 path: string, 8 path: string,
10 destination: string, 9 destination: string,
@@ -23,7 +22,7 @@ async function processImage (
23 if (extension === '.gif') { 22 if (extension === '.gif') {
24 await processGIF(path, destination, newSize) 23 await processGIF(path, destination, newSize)
25 } else { 24 } else {
26 await jimpProcessor(path, destination, newSize) 25 await jimpProcessor(path, destination, newSize, extension)
27 } 26 }
28 27
29 if (keepOriginal !== true) await remove(path) 28 if (keepOriginal !== true) await remove(path)
@@ -37,11 +36,12 @@ export {
37 36
38// --------------------------------------------------------------------------- 37// ---------------------------------------------------------------------------
39 38
40async function jimpProcessor (path: string, destination: string, newSize: { width: number, height: number }) { 39async function jimpProcessor (path: string, destination: string, newSize: { width: number, height: number }, inputExt: string) {
41 let jimpInstance: any 40 let jimpInstance: Jimp
41 const inputBuffer = await readFile(path)
42 42
43 try { 43 try {
44 jimpInstance = await Jimp.read(path) 44 jimpInstance = await Jimp.read(inputBuffer)
45 } catch (err) { 45 } catch (err) {
46 logger.debug('Cannot read %s with jimp. Try to convert the image using ffmpeg first.', path, { err }) 46 logger.debug('Cannot read %s with jimp. Try to convert the image using ffmpeg first.', path, { err })
47 47
@@ -54,8 +54,34 @@ async function jimpProcessor (path: string, destination: string, newSize: { widt
54 54
55 await remove(destination) 55 await remove(destination)
56 56
57 // Optimization if the source file has the appropriate size
58 if (await skipProcessing({ jimpInstance, newSize, imageBytes: inputBuffer.byteLength, inputExt, outputExt: extname(destination) })) {
59 return copy(path, destination)
60 }
61
57 await jimpInstance 62 await jimpInstance
58 .resize(newSize.width, newSize.height) 63 .resize(newSize.width, newSize.height)
59 .quality(80) 64 .quality(80)
60 .writeAsync(destination) 65 .writeAsync(destination)
61} 66}
67
68function skipProcessing (options: {
69 jimpInstance: Jimp
70 newSize: { width: number, height: number }
71 imageBytes: number
72 inputExt: string
73 outputExt: string
74}) {
75 const { jimpInstance, newSize, imageBytes, inputExt, outputExt } = options
76 const { width, height } = newSize
77
78 if (jimpInstance.getWidth() > width || jimpInstance.getHeight() > height) return false
79 if (inputExt !== outputExt) return false
80
81 const kB = 1000
82
83 if (height >= 1000) return imageBytes <= 200 * kB
84 if (height >= 500) return imageBytes <= 100 * kB
85
86 return imageBytes <= 15 * kB
87}