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ffmpeg-scaler - Online in the Cloud

Run ffmpeg-scaler in OnWorks free hosting provider over Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

This is the command ffmpeg-scaler that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

PROGRAM:

NAME


ffmpeg-scaler - FFmpeg video scaling and pixel format converter

DESCRIPTION


The FFmpeg rescaler provides a high-level interface to the libswscale library image
conversion utilities. In particular it allows one to perform image rescaling and pixel
format conversion.

SCALER OPTIONS


The video scaler supports the following named options.

Options may be set by specifying -option value in the FFmpeg tools. For programmatic use,
they can be set explicitly in the "SwsContext" options or through the libavutil/opt.h API.

sws_flags
Set the scaler flags. This is also used to set the scaling algorithm. Only a single
algorithm should be selected.

It accepts the following values:

fast_bilinear
Select fast bilinear scaling algorithm.

bilinear
Select bilinear scaling algorithm.

bicubic
Select bicubic scaling algorithm.

experimental
Select experimental scaling algorithm.

neighbor
Select nearest neighbor rescaling algorithm.

area
Select averaging area rescaling algorithm.

bicublin
Select bicubic scaling algorithm for the luma component, bilinear for chroma
components.

gauss
Select Gaussian rescaling algorithm.

sinc
Select sinc rescaling algorithm.

lanczos
Select lanczos rescaling algorithm.

spline
Select natural bicubic spline rescaling algorithm.

print_info
Enable printing/debug logging.

accurate_rnd
Enable accurate rounding.

full_chroma_int
Enable full chroma interpolation.

full_chroma_inp
Select full chroma input.

bitexact
Enable bitexact output.

srcw
Set source width.

srch
Set source height.

dstw
Set destination width.

dsth
Set destination height.

src_format
Set source pixel format (must be expressed as an integer).

dst_format
Set destination pixel format (must be expressed as an integer).

src_range
Select source range.

dst_range
Select destination range.

param0, param1
Set scaling algorithm parameters. The specified values are specific of some scaling
algorithms and ignored by others. The specified values are floating point number
values.

sws_dither
Set the dithering algorithm. Accepts one of the following values. Default value is
auto.

auto
automatic choice

none
no dithering

bayer
bayer dither

ed error diffusion dither

a_dither
arithmetic dither, based using addition

x_dither
arithmetic dither, based using xor (more random/less apparent patterning that
a_dither).

alphablend
Set the alpha blending to use when the input has alpha but the output does not.
Default value is none.

uniform_color
Blend onto a uniform background color

checkerboard
Blend onto a checkerboard

none
No blending

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