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Работа над вкладкой "Конвертирование"

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This commit is contained in:
Book Pauk
2020-12-18 22:44:20 +07:00
parent 40ff04e5dc
commit 972f957685
6 changed files with 52 additions and 18 deletions
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21
server/core/Reader/BookConverter/ConvertDjvu.js
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@@ -16,7 +16,12 @@ class ConvertDjvu extends ConvertJpegPng {
if (!this.check(data, opts))
return false;
const {inputFiles, callback, abort} = opts;
let {inputFiles, callback, abort, djvuQuality} = opts;
djvuQuality = (djvuQuality && djvuQuality <= 100 && djvuQuality >= 10 ? djvuQuality : 20);
let jpegQuality = djvuQuality;
let tiffQuality = djvuQuality + 30;
tiffQuality = (tiffQuality < 85 ? tiffQuality : 85);
const ddjvuPath = '/usr/bin/ddjvu';
if (!await fs.pathExists(ddjvuPath))
@@ -40,7 +45,7 @@ class ConvertDjvu extends ConvertJpegPng {
//конвертируем в tiff
let perc = 0;
await this.execConverter(ddjvuPath, ['-format=tiff', '-quality=50', '-verbose', inputFiles.sourceFile, tifFile], () => {
await this.execConverter(ddjvuPath, ['-format=tiff', `-quality=${tiffQuality}`, '-verbose', inputFiles.sourceFile, tifFile], () => {
perc = (perc < 100 ? perc + 1 : 40);
callback(perc);
}, abort);
@@ -57,16 +62,24 @@ class ConvertDjvu extends ConvertJpegPng {
await fs.remove(tifFile);
//конвертируем в jpg
await this.execConverter(mogrifyPath, ['-quality', '20', '-scale', '2048>', '-verbose', '-format', 'jpg', `${dir}*.tif`], () => {
await this.execConverter(mogrifyPath, ['-quality', jpegQuality, '-scale', '2048>', '-verbose', '-format', 'jpg', `${dir}*.tif`], () => {
perc = (perc < 100 ? perc + 1 : 40);
callback(perc);
}, abort);
limitSize = 2*this.config.maxUploadFileSize;
let jpgFilesSize = 0;
//ищем изображения
let files = [];
await utils.findFiles(async(file) => {
if (path.extname(file) == '.jpg')
if (path.extname(file) == '.jpg') {
jpgFilesSize += (await fs.stat(file)).size;
if (jpgFilesSize > limitSize) {
throw new Error(`Файл для конвертирования слишком большой|FORLOG| jpgFilesSize: ${jpgFilesSize} > ${limitSize}`);
}
files.push({name: file, base: path.basename(file)});
}
}, dir);
files.sort((a, b) => a.base.localeCompare(b.base));