AVIFDEC(1) General Commands Manual AVIFDEC(1) NAME avifdec - decompress an AVIF file to an image file SYNOPSIS avifdec [options] input.avif output.[jpg|jpeg|png|y4m] avifdec --info input.avif DESCRIPTION avifdec decompresses an AVIF file to an image file. Output format can be either JPEG, PNG or YUV4MPEG2 (Y4M). OPTIONS -h, --help Show syntax help. -V, --version Show the version number. -j, --jobs J Number of jobs (worker threads), or `all' to potentially use as many cores as possible. (Default: all). -c, --codec C Codec to use. Possible values depend on the codecs enabled at build time (see --help or --version for the available codecs). Default is auto-selected from the available codecs. Possible values are: o aom o dav1d o libgav1 -d, --depth D Output depth, either 8 or 16. (PNG only; For y4m, depth is retained, and JPEG is always 8bpc). -q, --quality Q Output quality in 0..100. (JPEG only, default: 90). --png-compress L PNG compression level in 0..9 (PNG only; 0=none, 9=max). Defaults to libpng's builtin default. -u, --upsampling U Chroma upsampling (for 420/422). One of `automatic' (default), `fastest', `best', `nearest', or `bilinear'. -r, --raw-color Output raw RGB values instead of multiplying by alpha when saving to opaque formats (JPEG only; not applicable to y4m). --index I When decoding an image sequence or progressive image, specify which frame index to decode, where the first frame has index 0, or `all' to decode all frames. (Default: 0) --progressive Enable progressive AVIF processing. If a progressive image is encountered and --progressive is passed, avifdec will use --index to choose which layer to decode (in progressive order). --no-strict Disable strict decoding, which disables strict validation checks and errors. -i, --info Decode all frames and display all image information instead of saving to disk. --icc FILENAME Provide an ICC profile payload (implies --ignore-icc). --ignore-icc If the input file contains an embedded ICC profile, ignore it (no-op if absent). --size-limit C Maximum image size (in total pixels) that should be tolerated. (Default: 268435456). --dimension-limit C Maximum image dimension (width or height) that should be tolerated. Set to 0 to ignore. (Default: 32768). -- Signal the end of options. Everything after this is interpreted as file names. EXAMPLES Decompress an AVIF file to a PNG file: $ avifdec input.avif output.png REPORTING BUGS Bugs can be reported on GitHub at: SEE ALSO avifenc(1) libavif 1.3.0 2022-04-30 AVIFDEC(1)