feat: video framerate option

thumbsup · Sep 8, 2022 · 7da47f3 · 7da47f3
1 parent 8f790d0
commit 7da47f3
Show file tree

Hide file tree

Showing 2 changed files with 12 additions and 1 deletion.
diff --git a/README.md b/README.md
@@ -211,6 +211,15 @@ The default value is `none`
 opts = { video-hwaccel: 'vaapi' }
 ```
 
+##### Video FPS
+
+The default export video FPS is 25. You can specify an explicit FPS by adding a `framerate` option:
+
+```js
+opts = { framerate: 60 }
+opts = { framerate: 'preserve' }   // preserve the original source video's FPS
+```
+
 ##### Conversion progress
 
 The `.video()` call returns an [EventEmitter](https://nodejs.org/api/events.html)

diff --git a/lib/video/ffargs.js b/lib/video/ffargs.js
@@ -23,7 +23,9 @@ exports.prepare = function (source, target, options) {
   args.push('-i', source)
 
   // output framerate
-  args.push('-r', DEFAULT_VIDEO_FPS)
+  if (options.framerate !== 'preserve') {
+    args.push('-r', options.framerate || DEFAULT_VIDEO_FPS)
+  }
 
   // misc options
   args.push('-vsync', '2', '-movflags', '+faststart')