table of contents
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¶
December 2018 | 0.1.0 |