Add scale filter to documentation

1 files changed, 8 insertions, 1 deletions

diff --git a/support/doc/plugins/guide.md b/support/doc/plugins/guide.md
index ea33b8d9f..e30d95fc9 100644
--- a/support/doc/plugins/guide.md
+++ b/support/doc/plugins/guide.md
@@ -341,9 +341,16 @@ async function register ({
       const streamString = streamNum ? ':' + streamNum : ''
 
       // You can also return a promise
-      // All these options are optional and defaults to []
+      // All these options are optional
       return {
+        scaleFilter: {
+          // Used to define an alternative scale filter, needed by some encoders
+          // Default to 'scale'
+          name: 'scale_vaapi'
+        },
+        // Default to []
         inputOptions: [],
+        // Default to []
         outputOptions: [
         // Use a custom bitrate
           '-b' + streamString + ' 10K'