Fix plugin api guide transcoding section

support/doc/plugins/guide.md

@@ -14,6 +14,7 @@
     - [Update video constants](#update-video-constants)
     - [Add custom routes](#add-custom-routes)
     - [Add external auth methods](#add-external-auth-methods)
+    - [Add new transcoding profiles](#add-new-transcoding-profiles)
   - [Client helpers (themes & plugins)](#client-helpers-themes--plugins)
     - [Plugin static route](#plugin-static-route)
     - [Notifier](#notifier)
@@ -22,7 +23,6 @@
     - [Translate](#translate)
     - [Get public settings](#get-public-settings)
     - [Add custom fields to video form](#add-custom-fields-to-video-form)
-    - [Add new transcoding profiles](#add-new-transcoding-profiles)
   - [Publishing](#publishing)
 - [Write a plugin/theme](#write-a-plugintheme)
   - [Clone the quickstart repository](#clone-the-quickstart-repository)
@@ -304,6 +304,94 @@ router.use('/external-auth-callback', (req, res) => {
 unregisterExternalAuth('my-auth-method)
 ```
 
+#### Add new transcoding profiles
+
+Adding transcoding profiles allow admins to change ffmpeg encoding parameters and/or encoders.
+A transcoding profile has to be chosen by the admin of the instance using the admin configuration.
+
+```js
+async function register ({
+  transcodingManager
+}) {
+
+  // Adapt bitrate when using libx264 encoder
+  {
+    const builder = (options) => {
+      const { input, resolution, fps, streamNum } = options
+
+      const streamString = streamNum ? ':' + streamNum : ''
+
+      // You can also return a promise
+      return {
+        outputOptions: [
+        // Use a custom bitrate
+          '-b' + streamString + ' 10K'
+        ]
+      }
+    }
+
+    const encoder = 'libx264'
+    const profileName = 'low-quality'
+
+    // Support this profile for VOD transcoding
+    transcodingManager.addVODProfile(encoder, profileName, builder)
+
+    // And/Or support this profile for live transcoding
+    transcodingManager.addLiveProfile(encoder, profileName, builder)
+  }
+
+  {
+    const builder = (options) => {
+      const { streamNum } = options
+
+      const streamString = streamNum ? ':' + streamNum : ''
+
+      // Always copy stream when PeerTube use libfdk_aac or aac encoders
+      return {
+        copy: true
+      }
+    }
+
+    const profileName = 'copy-audio'
+
+    for (const encoder of [ 'libfdk_aac', 'aac' ]) {
+      transcodingManager.addVODProfile(encoder, profileName, builder)
+    }
+  }
+```
+
+PeerTube will try different encoders depending on their priority.
+If the encoder is not available in the current transcoding profile or in ffmpeg, it tries the next one.
+Plugins can change the order of these encoders and add their custom encoders:
+
+```js
+async function register ({
+  transcodingManager
+}) {
+
+  // Adapt bitrate when using libx264 encoder
+  {
+    const builder = () => {
+      return {
+        outputOptions: []
+      }
+    }
+
+    // Support libopus and libvpx-vp9 encoders (these codecs could be incompatible with the player)
+    transcodingManager.addVODProfile('libopus', 'test-vod-profile', builder)
+
+    // Default priorities are ~100
+    // Lowest priority = 1
+    transcodingManager.addVODEncoderPriority('audio', 'libopus', 1000)
+
+    transcodingManager.addVODProfile('libvpx-vp9', 'test-vod-profile', builder)
+    transcodingManager.addVODEncoderPriority('video', 'libvpx-vp9', 1000)
+
+    transcodingManager.addLiveProfile('libopus', 'test-live-profile', builder)
+    transcodingManager.addLiveEncoderPriority('audio', 'libopus', 1000)
+  }
+```
+
 ### Client helpers (themes & plugins)
 
 #### Plugin static route
@@ -442,96 +530,6 @@ async function register ({
   })
 }
 ```
-
-#### Add new transcoding profiles
-
-Adding transcoding profiles allow admins to change ffmpeg encoding parameters and/or encoders.
-A transcoding profile has to be chosen by the admin of the instance using the admin configuration.
-
-```js
-async function register ({
-  transcodingManager
-}) {
-
-  // Adapt bitrate when using libx264 encoder
-  {
-    const builder = (options) => {
-      const { input, resolution, fps, streamNum } = options
-
-      const streamString = streamNum ? ':' + streamNum : ''
-
-      // You can also return a promise
-      return {
-        outputOptions: [
-        // Use a custom bitrate
-          '-b' + streamString + ' 10K'
-        ]
-      }
-    }
-
-    const encoder = 'libx264'
-    const profileName = 'low-quality'
-
-    // Support this profile for VOD transcoding
-    transcodingManager.addVODProfile(encoder, profileName, builder)
-
-    // And/Or support this profile for live transcoding
-    transcodingManager.addLiveProfile(encoder, profileName, builder)
-  }
-
-  {
-    const builder = (options) => {
-      const { streamNum } = options
-
-      const streamString = streamNum ? ':' + streamNum : ''
-
-      // Always copy stream when PeerTube use libfdk_aac or aac encoders
-      return {
-        copy: true
-      }
-    }
-
-    const profileName = 'copy-audio'
-
-    for (const encoder of [ 'libfdk_aac', 'aac' ]) {
-      transcodingManager.addVODProfile(encoder, profileName, builder)
-    }
-  }
-```
-
-PeerTube will try different encoders depending on their priority.
-If the encoder is not available in the current transcoding profile or in ffmpeg, it tries the next one.
-Plugins can change the order of these encoders and add their custom encoders:
-
-```js
-async function register ({
-  transcodingManager
-}) {
-
-  // Adapt bitrate when using libx264 encoder
-  {
-    const builder = () => {
-      return {
-        outputOptions: []
-      }
-    }
-
-    // Support libopus and libvpx-vp9 encoders (these codecs could be incompatible with the player)
-    transcodingManager.addVODProfile('libopus', 'test-vod-profile', builder)
-
-    // Default priorities are ~100
-    // Lowest priority = 1
-    transcodingManager.addVODEncoderPriority('audio', 'libopus', 1000)
-
-    transcodingManager.addVODProfile('libvpx-vp9', 'test-vod-profile', builder)
-    transcodingManager.addVODEncoderPriority('video', 'libvpx-vp9', 1000)
-
-    transcodingManager.addLiveProfile('libopus', 'test-live-profile', builder)
-    transcodingManager.addLiveEncoderPriority('audio', 'libopus', 1000)
-  }
-```
-
-
 ### Publishing
 
 PeerTube plugins and themes should be published on [NPM](https://www.npmjs.com/) so that PeerTube indexes