server/lib/video-editor.ts

   1 import { MVideoFullLight } from "@server/types/models"
   2 import { getVideoStreamDuration } from "@shared/extra-utils"
   3 import { VideoEditorTask } from "@shared/models"
   4
   5 function buildTaskFileFieldname (indice: number, fieldName = 'file') {
   6   return `tasks[${indice}][options][${fieldName}]`
   7 }
   8
   9 function getTaskFile (files: Express.Multer.File[], indice: number, fieldName = 'file') {
  10   return files.find(f => f.fieldname === buildTaskFileFieldname(indice, fieldName))
  11 }
  12
  13 async function approximateIntroOutroAdditionalSize (video: MVideoFullLight, tasks: VideoEditorTask[], fileFinder: (i: number) => string) {
  14   let additionalDuration = 0
  15
  16   for (let i = 0; i < tasks.length; i++) {
  17     const task = tasks[i]
  18
  19     if (task.name !== 'add-intro' && task.name !== 'add-outro') continue
  20
  21     const filePath = fileFinder(i)
  22     additionalDuration += await getVideoStreamDuration(filePath)
  23   }
  24
  25   return (video.getMaxQualityFile().size / video.duration) * additionalDuration
  26 }
  27
  28 export {
  29   approximateIntroOutroAdditionalSize,
  30   buildTaskFileFieldname,
  31   getTaskFile
  32 }