From c729caf6cc34630877a0e5a1bda1719384cd0c8a Mon Sep 17 00:00:00 2001
From: Chocobozzz <me@florianbigard.com>
Date: Fri, 11 Feb 2022 10:51:33 +0100
Subject: Add basic video editor support

---
 server/lib/video-editor.ts | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 server/lib/video-editor.ts

(limited to 'server/lib/video-editor.ts')

diff --git a/server/lib/video-editor.ts b/server/lib/video-editor.ts
new file mode 100644
index 000000000..99b0bd949
--- /dev/null
+++ b/server/lib/video-editor.ts
@@ -0,0 +1,32 @@
+import { MVideoFullLight } from "@server/types/models"
+import { getVideoStreamDuration } from "@shared/extra-utils"
+import { VideoEditorTask } from "@shared/models"
+
+function buildTaskFileFieldname (indice: number, fieldName = 'file') {
+  return `tasks[${indice}][options][${fieldName}]`
+}
+
+function getTaskFile (files: Express.Multer.File[], indice: number, fieldName = 'file') {
+  return files.find(f => f.fieldname === buildTaskFileFieldname(indice, fieldName))
+}
+
+async function approximateIntroOutroAdditionalSize (video: MVideoFullLight, tasks: VideoEditorTask[], fileFinder: (i: number) => string) {
+  let additionalDuration = 0
+
+  for (let i = 0; i < tasks.length; i++) {
+    const task = tasks[i]
+
+    if (task.name !== 'add-intro' && task.name !== 'add-outro') continue
+
+    const filePath = fileFinder(i)
+    additionalDuration += await getVideoStreamDuration(filePath)
+  }
+
+  return (video.getMaxQualityFile().size / video.duration) * additionalDuration
+}
+
+export {
+  approximateIntroOutroAdditionalSize,
+  buildTaskFileFieldname,
+  getTaskFile
+}
-- 
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