effects/avfilter/avfilter_lowpass.xml

0001 <?xml version="1.0"?>
0002 <!DOCTYPE kpartgui>
0003 <effect tag="avfilter.lowpass" id="avfilter.lowpass" type="audio">
0004     <name>Low-pass</name>
0005     <description>Apply a low-pass filter with 3dB point frequency.</description>
0006     <author>libavfilter</author>
0007     <parameter type="constant" name="av.f" default="500" min="20" max="20000" suffix="Hz">
0008         <name>Central frequency</name>
0009     </parameter>
0010     <parameter type="list" name="av.t" default="h" paramlist="h;q;o;s;k">
0011         <paramlistdisplay>Hz,Q-FActor,Octave,Slope,KHz</paramlistdisplay>
0012         <name>Type</name>
0013     </parameter>
0014     <parameter type="constant" name="av.w" default="0.707" min="0.001" max="9999" decimals="3">
0015         <name>Filter-width</name>
0016     </parameter>
0017     <parameter type="list" name="av.p" default="2" paramlist="1;2">
0018         <paramlistdisplay>1,2</paramlistdisplay>
0019         <name>Poles</name>
0020     </parameter>
0021     <parameter type="constant" name="av.m" default="1" min="0" max="1" decimals="2">
0022         <name>Mix</name>
0023     </parameter>
0024     <parameter type="bool" name="av.n" default="0">
0025         <name>Normalize</name>
0026     </parameter>
0027     <parameter type="list" name="av.a" default="di" paramlist="di;dii;tdii;latt">
0028         <paramlistdisplay>di,dii,tdii,latt</paramlistdisplay>
0029         <name>Transform type</name>
0030     </parameter>
0031     <parameter type="list" name="av.r" default="auto" paramlist="auto;s16;s32;f32;f64">
0032         <paramlistdisplay>Auto,s16,s32,f32,f64</paramlistdisplay>
0033         <name>Filter precision</name>
0034     </parameter>
0035 </effect>