beter readme, remove bad filter, remove vsync

.npmignore

@@ -1 +1,2 @@
 example/
+screencast.gif

README.md

@@ -1,9 +1,18 @@
 # gifify [![Dependency Status](http://img.shields.io/david/vvo/gifify.svg?style=flat-square)](https://david-dm.org/vvo/gifify)
 
-Convert any video file to an optimized animated GIF. Either in it's full length or just some part.
+Convert any video file to an optimized animated GIF. Either in it's full length or only a part of it.
 
 It's like [jclem/gifify](https://github.com/jclem/gifify/) but better in many ways from my point of view.
 
+## Demo time
+
+![screencast](screencast.gif)
+
+This screencast was recorded with [lolilolicon/FFcast](https://github.com/lolilolicon/FFcast) then converted to a GIF with:
+
+```shell
+gifify screencast.mkv -o screencast.gif --resize 800:-1
+```
 
 ## Features
 
@@ -25,7 +34,7 @@ Before using gifify, please install:
 - [convert](http://www.imagemagick.org/script/convert.php), the famous [ImageMagick](http://www.imagemagick.org/)
 - [pornel/giflossy](https://github.com/pornel/giflossy), it's a [gifsicle](http://www.lcdf.org/gifsicle/) fork
 
-## Install
+## Installation
 
 ```shell
 npm install -g gifify

index.js

@@ -74,7 +74,7 @@ function computeFFmpegArgs(opts) {
   // FFmpeg options
   // https://www.ffmpeg.org/ffmpeg.html#Options
   var args = [
-    '-loglevel', 'quiet'
+    '-loglevel', 'warning'
   ];
 
   // fast seek to opts.from - 500ms
@@ -96,14 +96,15 @@ function computeFFmpegArgs(opts) {
 
   // resize filter
   if (opts.resize !== undefined) {
-    args.push('-vf', 'scale=' + opts.resize + ',subtitles=22.srt');
+    args.push('-vf', 'scale=' + opts.resize);
   }
 
   // encoding filter and codec
   args.push('-f', 'image2pipe', '-vcodec', 'ppm');
 
   // force video sync so that even if nothing moves in the video, we get a constant frame rate
-  args.push('-vsync', '1');
+  // seems buggy, not what I want, still, some videos are failing to encode
+  // args.push('-vsync', '1');
 
   // write on stdout
   args.push('pipe:1');