I'm using ffmpeg to take a mjpeg feed from an IP camera and convert it into a series of still jpeg images. Here's the command I'm using:

```
ffmpeg -i http://xxx:xxx@xx.xx.xx.xx/vid.mjpg -f image2 -vcodec mjpeg %05d.jpg

```

Does anyone know a way to specify the level of jpg compression when using ffmpeg to create stills?