webpmux - animated WebP images, extract frames from animated WebP images, and manage XMP/EXIF metadata and ICC profile.
webpmux -get GET_OPTIONS INPUT -o OUTPUT webpmux -set SET_OPTIONS INPUT -o OUTPUT webpmux -strip STRIP_OPTIONS INPUT -o OUTPUT webpmux -frame FRAME_OPTIONS [ -frame ... ] [ -loop LOOP_COUNT ] [ -bgcolor BACKGROUND_COLOR ] -o OUTPUT webpmux -duration DURATION OPTIONS [ -duration ... ] INPUT -o OUTPUT webpmux -info INPUT webpmux [-h|-help] webpmux -version webpmux argument_file_name
WEBPMUX(1) General Commands Manual WEBPMUX(1) NAME webpmux - create animated WebP files from non-animated WebP images, extract frames from animated WebP images, and manage XMP/EXIF metadata and ICC profile. SYNOPSIS webpmux -get GET_OPTIONS INPUT -o OUTPUT webpmux -set SET_OPTIONS INPUT -o OUTPUT webpmux -strip STRIP_OPTIONS INPUT -o OUTPUT webpmux -frame FRAME_OPTIONS [ -frame ... ] [ -loop LOOP_COUNT ] [ -bgcolor BACKGROUND_COLOR ] -o OUTPUT webpmux -duration DURATION OPTIONS [ -duration ... ] INPUT -o OUTPUT webpmux -info INPUT webpmux [-h|-help] webpmux -version webpmux argument_file_name DESCRIPTION This manual page documents the webpmux command. webpmux can be used to create/extract from animated WebP files, as well as to add/extract/strip XMP/EXIF metadata and ICC profile. If a single file name (not starting with the character '-') is supplied as the argument, the command line argument are actually tokenized from this file. This allows for easy scripting or using large number of argu- ments. OPTIONS GET_OPTIONS (-get): icc Get ICC profile. exif Get EXIF metadata. xmp Get XMP metadata. frame n Get nth frame from an animated image. (n = 0 has a special mean- ing: last frame). SET_OPTIONS (-set) icc file.icc Set ICC profile. Where: 'file.icc' contains the ICC profile to be set. exif file.exif Set EXIF metadata. Where: 'file.exif' contains the EXIF metadata to be set. xmp file.xmp Set XMP metadata. Where: 'file.xmp' contains the XMP metadata to be set. STRIP_OPTIONS (-strip) icc Strip ICC profile. exif Strip EXIF metadata. xmp Strip XMP metadata. DURATION_OPTIONS (-duration) Amend the duration of a specific interval of frames. This option is only effective on animated WebP and has no effect on a single-frame file. duration[,start[,end]] Where: duration is the duration for the interval in milliseconds (mandatory). Must be non-negative. start is the starting frame index of the interval (optional). end is the ending frame index (inclusive) of the interval (optional). The three typical usages of this option are: -duration d set the duration to 'd' for the whole animation. -duration d,f set the duration of frame 'f' to 'd'. -duration d,start,end set the duration to 'd' for the whole [start,end] interval. Note that the frames outside of the [start, end] interval will remain untouched. The 'end' value '0' has the special meaning 'last frame of the animation'. Reminder: frame indexing starts at '1'. FRAME_OPTIONS (-frame) Create an animated WebP file from multiple (non-animated) WebP images. file_i +di[+xi+yi[+mi[bi]]] Where: 'file_i' is the i'th frame (WebP format), 'xi','yi' spec- ify the image offset for this frame, 'di' is the pause duration before next frame, 'mi' is the dispose method for this frame (0 for NONE or 1 for BACKGROUND) and 'bi' is the blending method for this frame (+b for BLEND or -b for NO_BLEND). Argument 'bi' can be omitted and will default to +b (BLEND). Also, 'mi' can be omitted if 'bi' is omitted and will default to 0 (NONE). Finally, if 'mi' and 'bi' are omitted then 'xi' and 'yi' can be omitted and will default to +0+0. -loop n Loop the frames n number of times. 0 indicates the frames should loop forever. Valid range is 0 to 65535 [Default: 0 (infi- nite)]. -bgcolor A,R,G,B Background color of the canvas. where: 'A', 'R', 'G' and 'B' are integers in the range 0 to 255 specifying the Alpha, Red, Green and Blue component values respectively [Default: 255,255,255,255]. INPUT Input file in WebP format. OUTPUT (-o) Output file in WebP format. Note: The nature of EXIF, XMP and ICC data is not checked and is assumed to be valid. BUGS Please report all bugs to the issue tracker: https://bugs.chromium.org/p/webp Patches welcome! See this page to get started: http://www.webmpro- ject.org/code/contribute/submitting-patches/ EXAMPLES Add ICC profile: webpmux -set icc image_profile.icc in.webp -o icc_container.webp Extract ICC profile: webpmux -get icc icc_container.webp -o image_profile.icc Strip ICC profile: webpmux -strip icc icc_container.webp -o without_icc.webp Add XMP metadata: webpmux -set xmp image_metadata.xmp in.webp -o xmp_container.webp Extract XMP metadata: webpmux -get xmp xmp_container.webp -o image_metadata.xmp Strip XMP metadata: webpmux -strip xmp xmp_container.webp -o without_xmp.webp Add EXIF metadata: webpmux -set exif image_metadata.exif in.webp -o exif_container.webp Extract EXIF metadata: webpmux -get exif exif_container.webp -o image_metadata.exif Strip EXIF metadata: webpmux -strip exif exif_container.webp -o without_exif.webp Create an animated WebP file from 3 (non-animated) WebP images: webpmux -frame 1.webp +100 -frame 2.webp +100+50+50 -frame 3.webp +100+50+50+1+b -loop 10 -bgcolor 255,255,255,255 -o anim_container.webp Get the 2nd frame from an animated WebP file: webpmux -get frame 2 anim_container.webp -o frame_2.webp Using -get/-set/-strip with input file name starting with '-': webpmux -set icc image_profile.icc -o icc_container.webp -- ---in.webp webpmux -get icc -o image_profile.icc -- ---icc_container.webp webpmux -strip icc -o without_icc.webp -- ---icc_container.webp AUTHORS webpmux is a part of libwebp and was written by the WebP team. The latest source tree is available at https://chromium.google- source.com/webm/libwebp This manual page was written by Vikas Arora <email@example.com>, for the Debian project (and may be used by others). ATTRIBUTES See attributes(7) for descriptions of the following attributes: +---------------+-----------------------+ |ATTRIBUTE TYPE | ATTRIBUTE VALUE | +---------------+-----------------------+ |Availability | image/library/libwebp | +---------------+-----------------------+ |Stability | Pass-through volatile | +---------------+-----------------------+ SEE ALSO cwebp(1), dwebp(1), gif2webp(1) Please refer to http://developers.google.com/speed/webp/ for additional information. NOTES This software was built from source available at https://github.com/oracle/solaris-userland. The original community source was downloaded from http://downloads.webmpro- ject.org/releases/webp/libwebp-1.0.0-rc3.tar.gz Further information about this software can be found on the open source community website at https://www.webmproject.org/. December 1, 2017 WEBPMUX(1)