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)
- https://code.videolan.org/videolan/dav1d