2 files changed, 90 insertions, 0 deletions

diff --git a/support/doc/plugins/guide.md b/support/doc/plugins/guide.md
index 41d70c372..2bd3fb6d2 100644
--- a/support/doc/plugins/guide.md
+++ b/support/doc/plugins/guide.md
@@ -21,6 +21,7 @@
     - [Custom Modal](#custom-modal)
     - [Translate](#translate)
     - [Get public settings](#get-public-settings)
+    - [Add custom fields to video form](#add-custom-fields-to-video-form)
   - [Publishing](#publishing)
 - [Write a plugin/theme](#write-a-plugintheme)
   - [Clone the quickstart repository](#clone-the-quickstart-repository)
@@ -29,6 +30,7 @@
   - [Update package.json](#update-packagejson)
   - [Write code](#write-code)
   - [Add translations](#add-translations)
+  - [Build your plugin](#build-your-plugin)
   - [Test your plugin/theme](#test-your-plugintheme)
   - [Publish](#publish)
 - [Plugin & Theme hooks/helpers API](#plugin--theme-hookshelpers-api)
@@ -379,6 +381,68 @@ peertubeHelpers.getSettings()
   })
 ```
 
+#### Add custom fields to video form
+
+To add custom fields in the video form (in *Plugin settings* tab):
+
+```js
+async function register ({ registerVideoField, peertubeHelpers }) {
+  const descriptionHTML = await peertubeHelpers.translate(descriptionSource)
+  const commonOptions = {
+    name: 'my-field-name,
+    label: 'My added field',
+    descriptionHTML: 'Optional description',
+    type: 'input-textarea',
+    default: ''
+  }
+
+  for (const type of [ 'upload', 'import-url', 'import-torrent', 'update' ]) {
+    registerVideoField(commonOptions, { type })
+  }
+}
+```
+
+PeerTube will send this field value in `body.pluginData['my-field-name']` and fetch it from `video.pluginData['my-field-name']`.
+
+So for example, if you want to store an additional metadata for videos, register the following hooks in **server**:
+
+```js
+async function register ({
+  registerHook,
+  storageManager
+}) {
+  const fieldName = 'my-field-name'
+
+  // Store data associated to this video
+  registerHook({
+    target: 'action:api.video.updated',
+    handler: ({ video, body }) => {
+      if (!body.pluginData) return
+
+      const value = body.pluginData[fieldName]
+      if (!value) return
+
+      storageManager.storeData(fieldName + '-' + video.id, value)
+    }
+  })
+
+  // Add your custom value to the video, so the client autofill your field using the previously stored value
+  registerHook({
+    target: 'filter:api.video.get.result',
+    handler: async (video) => {
+      if (!video) return video
+      if (!video.pluginData) video.pluginData = {}
+
+      const result = await storageManager.getData(fieldName + '-' + video.id)
+      video.pluginData[fieldName] = result
+
+      return video
+    }
+  })
+}
+
+```
+
 
 ### Publishing
 
@@ -498,6 +562,31 @@ Translation files are just objects, with the english sentence as the key and the
 }
 ```
 
+### Build your plugin
+
+If you added client scripts, you'll need to build them using webpack.
+
+Install webpack:
+
+```
+$ npm install
+```
+
+Add/update your files in the `clientFiles` array of `webpack.config.js`:
+
+```
+$ $EDITOR ./webpack.config.js
+```
+
+Build your client files:
+
+```
+$ npm run build
+```
+
+You built files are in the `dist/` directory. Check `package.json` to correctly point to them.
+
+
 ### Test your plugin/theme
 
 You'll need to have a local PeerTube instance:
diff --git a/support/doc/tools.md b/support/doc/tools.md
index 1f1e52c36..04cf2b569 100644
--- a/support/doc/tools.md
+++ b/support/doc/tools.md
@@ -256,6 +256,7 @@ Or to transcode to a specific resolution:
 ```
 $ sudo -u peertube NODE_CONFIG_DIR=/var/www/peertube/config NODE_ENV=production npm run create-transcoding-job -- -v [videoUUID] -r [resolution]
 ```
+The resolution should be an integer (`1080`, `720`, `480`, etc.)
 
 To generate an HLS playlist for a video: