of 0 will turn off any
filtering. Higher value will increase the strength of the
filtering process applied after decoding the picture. The
higher the value the smoother the picture will appear.
Typical values are usually in the range of 20 to 50.</p></td>
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<td width="9%">



<p style="margin-top: 1em" valign="top"><b>&minus;mt</b></p> </td>
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<p style="margin-top: 1em" valign="top">Use multi-threading
for encoding, if 