afiq.hamzah
109 lines
3.9 KiB
Plaintext
109 lines
3.9 KiB
Plaintext
IMG2WEBP(1) IMG2WEBP(1)
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NAME
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img2webp - create animated WebP file from a sequence of input images.
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SYNOPSIS
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img2webp [file_options] [[frame_options] frame_file]...
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img2webp argument_file_name
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DESCRIPTION
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This manual page documents the img2webp command.
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img2webp compresses a sequence of images using the animated WebP for-
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mat. Input images can either be PNG, JPEG, TIFF or WebP. If a single
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file name (not starting with the character '-') is supplied as the
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argument, the command line arguments are actually tokenized from this
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file. This allows for easy scripting or using a large number of argu-
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ments.
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FILE-LEVEL OPTIONS
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The file-level options are applied at the beginning of the compression
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process, before the input frames are read.
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-o string
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Specify the name of the output WebP file.
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-min_size
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Encode images to achieve smallest size. This disables key frame
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insertion and picks the parameters resulting in the smallest
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output for each frame. It uses lossless compression by default,
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but can be combined with -q, -m, -lossy or -mixed options.
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-kmin int
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-kmax int
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Specify the minimum and maximum distance between consecutive key
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frames (independently decodable frames) in the output animation.
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The tool will insert some key frames into the output animation
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as needed so that this criteria is satisfied.
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-mixed Mixed compression mode: optimize compression of the image
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by picking either lossy or lossless compression for each frame
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heuristically. This global option disables the local option
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-lossy and -lossless .
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-loop int
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Specifies the number of times the animation should loop. Using
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'0' means 'loop indefinitely'.
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-v Be more verbose.
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-h, -help
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A short usage summary.
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-version
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Print the version numbers of the relevant libraries used.
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PER-FRAME OPTIONS
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The per-frame options are applied for the images following as arguments
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in the command line. They can be modified any number of times preceding
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each particular input image.
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-d int Specify the image duration in milliseconds.
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-lossless, -lossy
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Compress the next image(s) using lossless or lossy compression
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mode. The default mode is lossless.
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-q float
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Specify the compression factor between 0 and 100. The default is
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75.
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-m int Specify the compression method to use. This parameter controls
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the trade off between encoding speed and the compressed file
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size and quality. Possible values range from 0 to 6. Default
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value is 4.
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EXAMPLE
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img2webp -loop 2 in0.png -lossy in1.jpg -d 80 in2.tiff -o out.webp
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BUGS
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Please report all bugs to the issue tracker:
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https://bugs.chromium.org/p/webp
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Patches welcome! See this page to get started: https://www.webmpro-
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ject.org/code/contribute/submitting-patches/
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AUTHORS
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img2webp is a part of libwebp and was written by the WebP team.
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The latest source tree is available at https://chromium.google-
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source.com/webm/libwebp
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This manual page was written by Pascal Massimino <pascal.mas-
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simino@gmail.com>, for the Debian project (and may be used by others).
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SEE ALSO
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webpmux(1), gif2webp(1)
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Please refer to https://developers.google.com/speed/webp/ for addi-
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tional information.
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January 5, 2022 IMG2WEBP(1)
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