title: Fade out in ffmpeg when creating a video from a still image is wonky?
body: <p>I'm creating a video that:</p>
  
  <ul>
  <li>uses a still image as a source</li>
  <li>has a text overlay</li>
  <li>fades in and out</li>
  <li>has a silent stereo audio track. </li>
  </ul>
  
  <p>So far, I have this, and it (almost) works correctly:</p>
  
  <pre><code>ffmpeg -f lavfi -i "aevalsrc=0|0" -loop 1 -i turtle-2.jpg  -c:v libx264 -t 5 -r 30 -s 1920x1080 -aspect 16:9 -pix_fmt yuv420p -filter:v drawtext="fontsize=130:fontfile=comic.ttf:text='hello world':x=(w-text_w)*.25:y=(h-text_h)*.75",fade=in:0:60,fade=out:90:60 -acodec aac turtle11.mp4
  </code></pre>
  
  <p>The only problem is that the fade out doesn't seem to be going to black, even tho this is a 150 frame video and I believe I am following the <a href="https://ffmpeg.org/ffmpeg-filters.html#toc-Examples-53" rel="nofollow noreferrer">ffmpeg documentation</a> correctly. </p>
  
  <p>The resulting video is here:</p>
  
  <p><a href="http://video.blivenyc.com/vid-from-image/turtle11.mp4" rel="nofollow noreferrer">http://video.blivenyc.com/vid-from-image/turtle11.mp4</a></p>
  
  <p>Any thoughts?</p>