>
<td width="2%"></td>
<td width="78%">


<p style="margin-top: 1em" valign="top">Mixed compression
mode: optimize compression of the image by picking either
lossy or lossless compression for each frame
heuristically.</p> </td>
</table>

<p style="margin-left:11%;"><b>&minus;q</b>
<i>float</i></p>

<p style="margin-left:22%;">Specify the compression factor
for RGB channels between 0 and 100. The default is 75. <br>
In case of lossless compression (default), a small factor
enables faster compression speed, b