dices.
</p>
</dd>
<dt>&lsquo;<samp>-video_device_index &lt;INDEX&gt;</samp>&rsquo;</dt>
<dd><p>Specify the video device by its index. Overrides anything given in the input filename.
</p>
</dd>
<dt>&lsquo;<samp>-audio_device_index &lt;INDEX&gt;</samp>&rsquo;</dt>
<dd><p>Specify the audio device by its index. Overrides anything given in the input filename.
</p>
</dd>
<dt>&lsquo;<samp>-pixel_format &lt;FORMAT&gt;</samp>&rsquo;</dt>
<dd><p>Request the video device to use a specific pixel format.
If the specifie