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dav1d(1) General Commands Manual dav1d(1)

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
December 2018 0.1.0