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Updated documentation for libaom encoder options.

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Signed-off-by: Gyan Doshi <ffmpeg@gyani.pro>
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Sam John 2019-04-09 17:55:51 -07:00 committed by Gyan Doshi
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doc/encoders.texi
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@ -1434,6 +1434,29 @@ value is 1, which will be slow and high quality.
Enable use of alternate reference frames. Defaults to the internal
default of the library.
@item arnr-max-frames (@emph{frames})
Set altref noise reduction max frame count. Default is -1.
@item arnr-strength (@emph{strength})
Set altref noise reduction filter strength. Range is -1 to 6. Default is -1.
@item aq-mode (@emph{aq-mode})
Set adaptive quantization mode. Possible values:
@table @samp
@item none (@emph{0})
Disabled.
@item variance (@emph{1})
Variance-based.
@item complexity (@emph{2})
Complexity-based.
@item cyclic (@emph{3})
Cyclic refresh.
@end table
@item lag-in-frames
Set the maximum number of frames which the encoder may keep in flight
at any one time for lookahead purposes. Defaults to the internal
@ -1466,6 +1489,35 @@ buffer falls below this percentage, frames will be dropped until it
has refilled above the threshold. Defaults to zero (no frames are
dropped).
@item denoise-noise-level (@emph{level})
Amount of noise to be removed for grain synthesis. Grain synthesis is disabled if
this option is not set or set to 0.
@item denoise-block-size (@emph{pixels})
Block size used for denoising for grain synthesis. If not set, AV1 codec
uses the default value of 32.
@item undershoot-pct (@emph{pct})
Set datarate undershoot (min) percentage of the target bitrate. Range is -1 to 100.
Default is -1.
@item overshoot-pct (@emph{pct})
Set datarate overshoot (max) percentage of the target bitrate. Range is -1 to 1000.
Default is -1.
@item minsection-pct (@emph{pct})
Minimum percentage variation of the GOP bitrate from the target bitrate. If minsection-pct
is not set, the libaomenc wrapper computes it as follows: @code{(minrate * 100 / bitrate)}.
Range is -1 to 100. Default is -1 (unset).
@item maxsection-pct (@emph{pct})
Maximum percentage variation of the GOP bitrate from the target bitrate. If maxsection-pct
is not set, the libaomenc wrapper computes it as follows: @code{(maxrate * 100 / bitrate)}.
Range is -1 to 5000. Default is -1 (unset).
@item frame-parallel (@emph{boolean})
Enable frame parallel decodability features. Default is true.
@item tiles
Set the number of tiles to encode the input video with, as columns x
rows. Larger numbers allow greater parallelism in both encoding and
@ -1480,6 +1532,17 @@ Provided for compatibility with libvpx/VP9.
@item row-mt (Requires libaom >= 1.0.0-759-g90a15f4f2)
Enable row based multi-threading. Disabled by default.
@item enable-cdef (@emph{boolean})
Enable Constrained Directional Enhancement Filter. The libaom-av1
encoder enables CDEF by default.
@item enable-global-motion (@emph{boolean})
Enable the use of global motion for block prediction. Default is true.
@item enable-intrabc (@emph{boolean})
Enable block copy mode for intra block prediction. This mode is
useful for screen content. Default is true.
@end table
@section libkvazaar