Sorry, this repository is no longer maintained due to the retirement of the main maintainer. After some time, this repository will be archived.
Ther source is currently maitained on avif-community by the maintaier. It's not a official community of AVIF codec. We take no resposibility the name of the community.
This repository will be removed after 2023-01-31 to resolve the confusing situation.
| Status | |
|---|---|
| Linux |  |
| Linux(.deb) |  |
| macOS |  |
| Windows |  |
avif encoder, using libaom directly.
avif (AV1 Image File Format) is a still picture format uses a keyframe of AV1.
The most significant mission of this project is "Make it enable to tune libaom's all encoding options to optimize quality/size ratio as nice as possible human beings can".
AVIF(AV1 Image File Format)は、動画フォーマットであるAV1のキーフレームを流用して圧縮する静止画フォーマットです。
cavifは、ラッパーを介さず libaom を直接叩くavifのエンコーディング・コマンドです。このプロジェクトの唯一にして最大の使命は、 libaomの静止画に関する全エンコードオプションを仔細に操作できるようにして、現生人類が現時点で達成可能な最高の圧縮効率を実現する手段を提供すること です。
If your system cmake is lower than 3.13, please install the latest version:
To install:
- Ubuntu/Debian
- Windows
- mac OS
brew install cmake
meson and ninja are required to build libvmaf.
Please see: https://mesonbuild.com/Quick-guide.html
Or another method: You can use python's venv to install. See our CI about details.
# cloning this repository with dependencies.
git clone --recurse-submodules --recursive https://github.com/link-u/cavif
cd cavif
# Apply workarounds
bash scripts/apply-patches.sh
# Build dependencies not managed by CMake.
bash scripts/build-deps.sh
# Make build directory
mkdir build && cd build
# If your system gcc is 8.0 or higher:
cmake -G 'Ninja' ..
# If not, please install gcc-8 (or higher) and tell them to CMake.
CXX=g++-8 CC=gcc-8 cmake -G 'Ninja' ..
# build and get cavif binary!
ninjacavif -i <input.png> -o <output.avif>Example avif files are available in AOMediaCodec/av1-avif or link-u/avif-sample-images.
(Currently, detailed documentation is only in Japanese)
You have to encode alpha plane separately(Of course, it's to achieve best image quality!).
cavif -i <input.png> -o <output-alpha.avif> --encode-target alpha --monochrome
cavif -i <input.png> -o <output.avif> --encode-target image --attach-alpha <output-alpha.avif>[2022/03/26 11:57:21 INFO ] cavif
[2022/03/26 11:57:21 INFO ] libaom ver: 3.3.0
[2022/03/26 11:57:21 INFO ] libpng ver:1.6.38.git
SYNOPSIS
cavif -i <input.png> -o <output.avif> [--attach-alpha <input-alpha.avif>] [--attach-depth
<input-depth.avif>] [--encode-target [image|alpha]] [--show-result] [--rotation
[0|90|180|270]] [--mirror [vertical|horizontal]] [--crop-size <width,height>]
[--crop-offset <horizontalOffset,verticalOffset>] [--full-still-picture-header]
[--color-primaries (<Value defined in
H.273>|bt709|sRGB|sYCC|unspecified|bt470m|bt470bg|bt601|ntsc|smpte240m|generic-film|bt2020|bt2100|smpte428|xyz|smpte431|smpte432|22)]
[--transfer-characteristics (<Value defined in
H.273>|bt709|unspecified|bt470m|bt470bg|bt601|ntsc|smpte240m|linear|log100|log100sqrt10|iec61966|bt1361|sRGB|sYCC|bt2020|bt2020-10bit|bt2020-12bit|smpte2084|bt2100pq|smpte428|bt2100hlg|arib-b67)]
[--matrix-coefficients (<Value defined in
H.273>|bt709|sRGB|unspecified|us-fcc|bt470bg|sYCC|bt601|ntsc|smpte240m|bt2020)]
[--horizontal-scale-mode [1/1|1/2|3/5|4/5|1/4|3/4|1/8]] [--vertical-scale-mode
[1/1|1/2|3/5|4/5|1/4|3/4|1/8]] [--resize-mode [none|fixed|random]]
[--resize-denominator_ <[8-16], default=8>] [--superres-mode
[none|fixed|random|qthresh|auto]] [--superres-denominator_ <[8-16], default=8>]
[--superres-qthresh <[0-63], default=63 (Do not apply superres filter)>]
[--render-width <<render-width>>] [--render-height <<render-height>>] [--profile
<0=base(default), 1=high, 2=professional>] [--pix-fmt [yuv420|yuv422|yuv444]]
[--bit-depth [8|10|12]] [--disable-full-color-range] [--enable-full-color-range]
[--encoder-usage [good|realtime]] [--threads <Num of threads to use (default=num of
logical cores)>] [--enable-row-mt] [--disable-row-mt] [--cpu-used <0-9, default=1.
Higher means slower encoding and better quality>] [--rate-control [cbr|q|cq]]
[--bit-rate <kilo-bits per frame(default=0)>] [--crf <0-63(default=10)>] [--qmin
<0-63(default=0)>] [--qmax <0-63(default=63)>] [--adaptive-quantization
[none|variance|complexity|cyclic]] [--enable-adaptive-quantization-b]
[--disable-adaptive-quantization-b] [--delta-q [none|objective|perceptual]]
[--delta-q-strength] [--enable-chroma-delta-q] [--disable-chroma-delta-q]
[--enable-loop-filter] [--disable-loop-filter] [--enable-delta-lf]
[--disable-delta-lf] [--use-qm] [--qm-min <0-15 (default: 5)>] [--qm-max <0-15
(default: 9)>] [--qm-min-y <0-15 (default: 10)>] [--qm-min-u <0-15 (default: 11)>]
[--qm-min-v <0-15 (default: 12)>] [--tune
[ssim|psnr|vmaf-with-preprocessing|vmaf-without-preprocessing|vmaf-max-gain|vmaf-neg-max-gain]]
[--content-type [default|screen|film]] [--vmaf-model-path <<path-to-vmaf-model-file>>]
[--lossless] [--monochrome] [--sharpness <0-7>] [--disable-cdef] [--enable-cdef]
[--disable-loop-restoration] [--enable-loop-restoration] [--superblock-size
[dynamic|128|64]] [--tile-rows <0-6>] [--tile-columns <0-6>]
[--keyframe-temporal-filter [disable|without-overlay|with-overlay]]
[--enable-rect-partitions] [--disable-rect-partitions] [--enable-ab-partitions]
[--disable-ab-partitions] [--disable-1to4-partitions] [--enable-1to4-partitions]
[--enable-intra-edge-filter] [--disable-intra-edge-filter] [--min-partition-size
[4|8|16|32|64|128]] [--max-partition-size [4|8|16|32|64|128]] [--enable-tx64]
[--disable-tx64] [--enable-flip-idtx] [--disable-flip-idtx] [--enable-rect-tx]
[--disable-rect-tx] [--use-dct-only] [--use-default-tx-only] [--use-reduced-tx-set]
[--enable-filter-intra] [--disable-filter-intra] [--enable-smooth-intra]
[--disable-smooth-intra] [--enable-paeth-intra] [--disable-paeth-intra]
[--enable-chroma-from-luma] [--disable-chroma-from-luma] [--enable-superres]
[--disable-superres] [--enable-palette] [--disable-palette] [--enable-intrabc]
[--disable-intrabc] [--enable-angle-delta] [--disable-angle-delta]
[--enable-diagonal-intra] [--disable-diagonal-intra] [--enable-directional-intra]
[--disable-directional-intra] [--enable-tx-size-search] [--disable-tx-size-search]
cavif -h
OPTIONS
-i, --input Filename to input
-o, --output
Filename to output
--attach-alpha
Attach alpha plane
--attach-depth
Attach depth plane
--encode-target
Encode target
image Encode image planes (default)
alpha Encode an alpha plane
--show-result
Show encoding result
--rotation Set rotation meta data(irot). Counter-clockwise.
--mirror Set mirror meta data(imir).
--crop-size Set crop size.
--crop-offset
Set crop offset.
--full-still-picture-header
Force to output full picture header
--color-primaries
Set color primaries information value.
<Value defined in H.273>
See https://www.itu.int/rec/T-REC-H.273-201612-I/en
bt709 Rec. ITU-R BT.709-6
sRGB IEC 61966-2-1 sRGB or sYCC
sYCC IEC 61966-2-1 sRGB or sYCC
unspecified Image characteristics are unknown or are determined by the application.
bt470m Rec. ITU-R BT.470-6 System M (historical)
bt470bg Rec. ITU-R BT.470-6 System B, G (historical)
bt601 Rec. ITU-R BT.601-7 625
ntsc Rec. ITU-R BT.1700-0 NTSC
smpte240m SMPTE ST 240 (1999)
generic-film
Generic film (colour filters using Illuminant C)
bt2020 Rec. ITU-R BT.2020-2
bt2100 Rec. ITU-R BT.2100-0
smpte428 SMPTE ST 428-1
xyz (CIE 1931 XYZ as in ISO 11664-1)
smpte431 SMPTE RP 431-2 (2011)
smpte432 SMPTE EG 432-1 (2010)
22 No corresponding industry specification identified
--transfer-characteristics
Set transfer characteristics information value.
<Value defined in H.273>
See https://www.itu.int/rec/T-REC-H.273-201612-I/en
bt709 Rec. ITU-R BT.709-6
unspecified Image characteristics are unknown or are determined by the application.
bt470m Rec. ITU-R BT.470-6 System M (historical)
bt470bg Rec. ITU-R BT.470-6 System B, G (historical)
bt601 Rec. ITU-R BT.1700-0 NTSC
ntsc Rec. ITU-R BT.1700-0 NTSC
smpte240m SMPTE 240M (1999) (historical)
linear Linear transfer characteristics
log100 Logarithmic transfer characteristic (100:1 range)
log100sqrt10
Logarithmic transfer characteristic (100 * Sqrt( 10 ) : 1 range)
iec61966 IEC 61966-2-4
bt1361 Rec. ITU-R BT.1361-0 extended colour gamut system (historical)
sRGB IEC 61966-2-1 sRGB or sYCC
sYCC IEC 61966-2-1 sRGB or sYCC
bt2020 Rec. ITU-R BT.2020-2 (10-bit system)
bt2020-10bit
Rec. ITU-R BT.2020-2 (10-bit system)
bt2020-12bit
Rec. ITU-R BT.2020-2 (12-bit system)
smpte2084 SMPTE ST 2084 for 10-, 12-, 14- and 16-bit systems
bt2100pq Rec. ITU-R BT.2100-0 perceptual quantization (PQ) system
smpte428 SMPTE ST 428-1
bt2100hlg Rec. ITU-R BT.2100-0 hybrid log-gamma (HLG) system
arib-b67 ARIB STD-B67
--matrix-coefficients
Set matrix coefficients information value.
<Value defined in H.273>
See https://www.itu.int/rec/T-REC-H.273-201612-I/en
bt709 Rec. ITU-R BT.709-6 (default)
sRGB IEC 61966-2-1 sRGB or sYCC (default)
unspecified Image characteristics are unknown or are determined by the application
us-fcc United States Federal Communications Commission (2003)
bt470bg Rec. ITU-R BT.470-6 System B, G (historical)
sYCC IEC 61966-2-1 sRGB or sYCC
bt601 Rec. ITU-R BT.601-7 625
ntsc Rec. ITU-R BT.1700-0 NTSC
smpte240m SMPTE 240M
bt2020 Rec. ITU-R BT.2020-2 (non-constant luminance)
--horizontal-scale-mode
Set horizontal scale mode
1/1 Do not scale (default)
1/2 Scale to 1/2
3/5 Scale to 3/5
4/5 Scale to 4/5
1/4 Scale to 1/4
3/4 Scale to 3/4
1/8 Scale to 1/8
--vertical-scale-mode
Set vertical scale mode
1/1 Do not scale (default)
1/2 Scale to 1/2
3/5 Scale to 3/5
4/5 Scale to 4/5
1/4 Scale to 1/4
3/4 Scale to 3/4
1/8 Scale to 1/8
--resize-mode
Set resize mode
none Do not resize
fixed Resize image using a denominator_ given by `--resize-denominator_` arg
random Resize image randomly!
--resize-denominator_
Set resize denominator_.
--superres-mode
Set superres mode
none Do not use superres mode
fixed Apply superres filter to image using a denominator_ given by
`--superres-denominator_` arg
random Apply superres filter to image with a random denominator_!
qthresh Apply or do not apply superres filter to image based on the q index
auto Apply or do not apply superres filter to image automatically
--superres-denominator_
Set superres resize denominator_.
--superres-qthresh
Set q level threshold for superres.
--render-width
Set render width explicitly
--render-height
Set render height explicitly
--profile AV1 Profile(0=base, 1=high, 2=professional)
--pix-fmt Pixel format of output image
yuv420 YUV420 format (default)
yuv422 YUV422 format
yuv444 YUV444 format (recommended for lossless images)
--bit-depth Bit depth of output image
8 8bits per color, 24bits per pixel (default)
10 10bits per color, 30bits per pixel
12 12bits per color, 36bits per pixel
--disable-full-color-range
Use limited YUV color range (default)
--enable-full-color-range
Use full YUV color range
--encoder-usage
Encoder usage
good Good Quality mode (default)
realtime Real time encoding mode
--enable-row-mt
Enable row based multi-threading of encoder
--disable-row-mt
Disable row based multi-threading of encoder (default)
--cpu-used Quality/Speed ratio modifier
--rate-control
Rate control method
cbr Constant Bit Rate mode. Please also set `--bit-rate` arg.
q Constant Quality (default)
cq Constrained Quality
--bit-rate Bit rate of output image.
--crf CQ Level in CQ rate control mode
--qmin Minimum (Best Quality) Quantizer
--qmax Maximum (Worst Quality) Quantizer
--adaptive-quantization
Set adaptive-quantization mode
none none(default)
variance variance based
complexity complexity based
cyclic Cyclic refresh
--enable-adaptive-quantization-b
use adaptive quantize_b
--disable-adaptive-quantization-b
use traditional adaptive quantization (default)
--delta-q a mode of delta q mode feature, that allows modulating q per superblock
none disable deltaQ
objective Use modulation to maximize objective quality
perceptual Use modulation to maximize perceptual quality
--delta-q-strength
strength of deltaQ [0..1000] (default = 100)
--enable-chroma-delta-q
enable delta quantization in chroma
--disable-chroma-delta-q
disable delta quantization in chroma
--enable-loop-filter
enable loop filter (default)
--disable-loop-filter
disable loop filter
--enable-delta-lf
enable delta loop filter
--disable-delta-lf
disable delta loop filter (default)
--use-qm Use QMatrix
--qm-min Min quant matrix flatness
--qm-max Max quant matrix flatness
--qm-min-y Min quant matrix flatness for Y
--qm-min-u Min quant matrix flatness for U
--qm-min-v Min quant matrix flatness for V
--tune Quality metric to tune
ssim SSIM(structural similarity)
psnr PSNR(peak signal-to-noise ratio)
vmaf-with-preprocessing
vmaf-with-preprocessing
vmaf-without-preprocessing
vmaf-without-preprocessing
vmaf-max-gain
vmaf-max-gain
vmaf-neg-max-gain
vmaf-neg-max-gain
--content-type
Content type
default Regular video content (default)
screen Screen capture content
film Film content
--vmaf-model-path
VMAF model file path to tuning image quality
--lossless Enable lossless encoding
--monochrome
Encode to monochrome image
--sharpness Sharpening output
--disable-cdef
Disable Constrained Directional Enhancement Filter (default)
--enable-cdef
Enable Constrained Directional Enhancement Filter
--disable-loop-restoration
Disable Loop Restoration Filter (default)
--enable-loop-restoration
Enable Loop Restoration Filter
--superblock-size
Superblock size.
dynamic encoder determines the size automatically.
128 use 128x128 superblock.
64 use 64x64 superblock.
--tile-rows Number of tile rows
--tile-columns
Number of tile columns
--keyframe-temporal-filter
Enable temporal filtering on key frame
--enable-rect-partitions
enable rectangular partitions (default)
--disable-rect-partitions
disable rectangular partitions
--enable-ab-partitions
enable ab partitions (default)
--disable-ab-partitions
disable ab partitions
--disable-1to4-partitions
enable 1to4 partitions (default)
--enable-1to4-partitions
disable 1to4 partitions
--enable-intra-edge-filter
enable intra edge filter (default)
--disable-intra-edge-filter
disable intra edge filter
--min-partition-size
min partition size
--max-partition-size
max partition size
--enable-tx64
enable 64-length transforms (default)
--disable-tx64
disable 64-length transforms
--enable-flip-idtx
enable flip and identity transforms (default)
--disable-flip-idtx
disable flip and identity transforms
--enable-rect-tx
enable rectangular transforms (default)
--disable-rect-tx
disable rectangular transforms
--use-dct-only
Use DCT tx onlyq
--use-default-tx-only
use default tx type only
--use-reduced-tx-set
use reduced tx set, transforms w/o flip (4) + Identity (1).
--enable-filter-intra
enable (default)
--disable-filter-intra
disable
--enable-smooth-intra
enable (default)
--disable-smooth-intra
disable
--enable-paeth-intra
enable (default)
--disable-paeth-intra
disable
--enable-chroma-from-luma
enable (default)
--disable-chroma-from-luma
disable
--enable-superres
enable frame superresolution (default)
--disable-superres
disable frame superresolution
--enable-palette
enable palette mode
--disable-palette
disable palette mode (default)
--enable-intrabc
enable intra block copy mode (default)
--disable-intrabc
disable intra block copy mode
--enable-angle-delta
enable intra angle delta (default)
--disable-angle-delta
disable intra angle delta
--enable-diagonal-intra
enable usage of D45 to D203 intra modes (default)
--disable-diagonal-intra
disable usage of D45 to D203 intra modes
--enable-directional-intra
turn on directional intra mode (default)
--disable-directional-intra
turn off directional intra mode
--enable-tx-size-search
turn on transform size search (default). Transforms always have the largest
possible size
--disable-tx-size-search
turn off transform size search. Search for the best transform size for each
block
-h, --help Show help and exit.
- Thumbnail
- Improve default configs
- Add more and more command-line flags.
- link-u/davif - avif decoder, using dav1d directly.
- link-u/libavif-container - a library to parse avif container.
- link-u/avif-sample-images - sample images from us.
![dependabot-preview[bot] avatar](https://avatars.githubusercontent.com/in/2141?v=4 "dependabot-preview[bot]")
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