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dav1d(1) General Commands Manual dav1d(1)


dav1d - fast and small AV1 video stream decoder


dav1d [options]


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.


input file (required)
output file
force demuxer type ('ivf' or 'annexb'; default: detect from extension)
force muxer type ('md5', 'yuv', 'yuv4mpeg2' or 'null'; default: detect from extension)
disable status messages
stop decoding after $num frames
skip decoding of the first $num frames
print version and exit
number of frame threads (default: 1)
number of tile threads (default: 1)
enable film grain application (default: 1, except if muxer is md5)
select an operating point of a scalable AV1 bitstream (0 - 32)
output all spatial layers of a scalable AV1 bitstream (default: 1)
verify decoded md5. implies --muxer md5, no output
restrict permitted CPU instruction sets (0, 'sse2', 'ssse3', 'sse41', 'avx2' or 'avx512'; default: -1)


December 2018 0.1.0