pp


Enable the specified chain of postprocessing subfilters using libpostproc. This library should be automatically selected with a GPL build (--enable-gpl). Subfilters must be separated by '/' and can be disabled by prepending a '-'. Each subfilter and some options have a short and a long name that can be used interchangeably, i.e. dr/dering are the same.

The filters accept the following options:

'subfilters'

Set postprocessing subfilters string.

All subfilters share common options to determine their scope:

'a/autoq'

Honor the quality commands for this subfilter.

'c/chrom'

Do chrominance filtering, too (default).

'y/nochrom'

Do luminance filtering only (no chrominance).

'n/noluma'

Do chrominance filtering only (no luminance).

These options can be appended after the subfilter name, separated by a '|'.

Available subfilters are:

'hb/hdeblock[|difference[|flatness]]'

Horizontal deblocking filter

'difference'

Difference factor where higher values mean more deblocking (default: 32).

'flatness'

Flatness threshold where lower values mean more deblocking (default: 39).

'vb/vdeblock[|difference[|flatness]]'

Vertical deblocking filter

'difference'

Difference factor where higher values mean more deblocking (default: 32).

'flatness'

Flatness threshold where lower values mean more deblocking (default: 39).

'ha/hadeblock[|difference[|flatness]]'

Accurate horizontal deblocking filter

'difference'

Difference factor where higher values mean more deblocking (default: 32).

'flatness'

Flatness threshold where lower values mean more deblocking (default: 39).

'va/vadeblock[|difference[|flatness]]'

Accurate vertical deblocking filter

'difference'

Difference factor where higher values mean more deblocking (default: 32).

'flatness'

Flatness threshold where lower values mean more deblocking (default: 39).

The horizontal and vertical deblocking filters share the difference and flatness values so you cannot set different horizontal and vertical thresholds.

'h1/x1hdeblock'

Experimental horizontal deblocking filter

'v1/x1vdeblock'

Experimental vertical deblocking filter

'dr/dering'

Deringing filter

'tn/tmpnoise[|threshold1[|threshold2[|threshold3]]], temporal noise reducer'
'threshold1'

larger -> stronger filtering

'threshold2'

larger -> stronger filtering

'threshold3'

larger -> stronger filtering

'al/autolevels[:f/fullyrange], automatic brightness / contrast correction'
'f/fullyrange'

Stretch luminance to 0-255.

'lb/linblenddeint'

Linear blend deinterlacing filter that deinterlaces the given block by filtering all lines with a (1 2 1) filter.

'li/linipoldeint'

Linear interpolating deinterlacing filter that deinterlaces the given block by linearly interpolating every second line.

'ci/cubicipoldeint'

Cubic interpolating deinterlacing filter deinterlaces the given block by cubically interpolating every second line.

'md/mediandeint'

Median deinterlacing filter that deinterlaces the given block by applying a median filter to every second line.

'fd/ffmpegdeint'

FFmpeg deinterlacing filter that deinterlaces the given block by filtering every second line with a (-1 4 2 4 -1) filter.

'l5/lowpass5'

Vertically applied FIR lowpass deinterlacing filter that deinterlaces the given block by filtering all lines with a (-1 2 6 2 -1) filter.

'fq/forceQuant[|quantizer]'

Overrides the quantizer table from the input with the constant quantizer you specify.

'quantizer'

Quantizer to use

'de/default'

Default pp filter combination (hb|a,vb|a,dr|a)

'fa/fast'

Fast pp filter combination (h1|a,v1|a,dr|a)

'ac'

High quality pp filter combination (ha|a|128|7,va|a,dr|a)