NAME

       dav1d - fast and small AV1 video stream decoder

SYNOPSIS

       dav1d [options]

DESCRIPTION

       dav1d  is  an  AOMedia  Video  1 (AV1) cross-platform decoder and focused on speed and correctness. dav1d
       supports the following features: Support for all features of the AV1 bitstream. Support for all bitdepth,
       8, 10 and 12bits.   Support  for  all  chroma  subsamplings  4:2:0,  4:2:2,  4:4:4  and  grayscale.  Full
       acceleration for AVX-2 64bits processors. Partial acceleration for SSSE3 processors. Partial acceleration
       for NEON processors.

OPTIONS

       -i, --input=$file
              input file (required)

       -o, --output=$file
              output file

       --demuxer=$name
              force demuxer type ('ivf' or 'annexb'; default: detect from extension)

       --muxer=$name
              force muxer type ('md5', 'yuv', 'yuv4mpeg2' or 'null'; default: detect from extension)

       -q, --quiet
              disable status messages

       -l, --limit=$num
              stop decoding after $num frames

       -s, --skip=$num
              skip decoding of the first $num frames

       -v, --version
              print version and exit

       --framethreads=$num
              number of frame threads (default: 1)

       --tilethreads=$num
              number of tile threads (default: 1)

       --filmgrain
              enable film grain application (default: 1, except if muxer is md5)

       --oppoint=$num
              select an operating point of a scalable AV1 bitstream (0 - 32)

       --alllayers=$num
              output all spatial layers of a scalable AV1 bitstream (default: 1)

       --verify=$md5
              verify decoded md5. implies --muxer md5, no output

       --cpumask=$mask
              restrict permitted CPU instruction sets (0, 'sse2', 'ssse3', 'sse41', 'avx2' or 'avx512'; default:
              -1)

       SEE ALSO
              https://code.videolan.org/videolan/dav1d

0.1.0                                             December 2018                                         dav1d(1)