参考网站
https://aomedia.googlesource.com/aom/
编译工具和依赖库
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CMake
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Git
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Perl
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官网下载安装：https://www.perl.org/get.html
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我的百度云下载安装：链接：https://pan.baidu.com/s/1ZSsE2nevhW7ZMMSY1QzE-Q?pwd=unel
提取码：unel安装完成之后在终端输入：
perl -v出现以下输出则表示成功
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yasm
链接：https://yasm.tortall.net/Download.html
下载完成之后重命名为
yasm.exe，并且配置环境变量。 -
Doxygen
链接：https://doxygen.nl/download.html，需要安装 1.8.10 以上版本
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EMSDK
链接：https://github.com/emscripten-core/emsdk，需要安装 Python3.6.0 以上版本
在终端进入代码路径之后输入以下命令：
emsdk.bat update #更新 emsdk.bat install latest #安装最新的emsdk emsdk.bat activate latest #激活 emsdk_env.bat #设置环境变量安装完成之后在终端输入：
emcc -v，出现以下输出则表示成功：
在 Windows 环境下，如果想把 Emscripten 的环境变量注册为全局变量，可以以管理员身份运行
emsdk.bat activate latest --global，或者手动配置环境变量，来更改系统的环境变量，使得以后无需再运行emsdk_env.bat，该方法有潜在的副作用：它将环境变量指向了 Emscripten 内置的 Node.js、Python、Java，若系统中安装了这些组件的其他版本，可能引发冲突。
下载源代码
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官方链接：
git clone https://aomedia.googlesource.com/aom -
即使可以科学上网，但是官方链接我一直无法下载，所以我去谷歌的 AV1 论坛（https://groups.google.com/a/aomedia.org/g/av1-discuss）找了一份代码，链接：https://storage.googleapis.com/aom-releases/libaom-3.4.0.tar.gz
编译
使用 CMake 生成 VS 解决方案
打开 CMake 软件，设置代码路径，生成路径，点击 Configure 按钮
选择自己的 VS 版本
根据需求手动修改配置（不修改也可以），点击 Generate 按钮
看到以下 2 行说明生成成功：
编译
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进入 build 目录，打开 AOM.sln
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设置 aomenc/aomdec 为启动项，右键生成
使用
编码示例：
aomenc.exe --fps=30/1 --width=320 --height=256 --max-q=22--psnr --obu --bit-depth=8 -y -o str.bin E:\Sequence\foreman-cif_320x256.yuv
解码示例：
aomdec.exe --i420 -o rec.yuv str.bin
所有可调的编码参数：
Options:
--help Show usage options and exit
-c <arg>, --cfg=<arg> Config file to use
-D, --debug Debug mode (makes output deterministic)
-o <arg>, --output=<arg> Output filename
--codec=<arg> Codec to use
-p <arg>, --passes=<arg> Number of passes (1/2/3)
--pass=<arg> Pass to execute (1/2/3)
--fpf=<arg> First pass statistics file name
--limit=<arg> Stop encoding after n input frames
--skip=<arg> Skip the first n input frames
--good Use Good Quality Deadline
--rt Use Realtime Quality Deadline
--allintra Use all intra mode
-q, --quiet Do not print encode progress
-v, --verbose Show encoder parameters
--psnr=<arg> Show PSNR in status line (0: Disable PSNR status line display, 1: PSNR calculated using input bit-depth (default), 2: PSNR calculated using stream bit-depth); takes default option when arguments are not specified
--webm Output WebM (default when WebM IO is enabled)
--ivf Output IVF
--obu Output OBU
--q-hist=<arg> Show quantizer histogram (n-buckets)
--rate-hist=<arg> Show rate histogram (n-buckets)
--disable-warnings Disable warnings about potentially incorrect encode settings
-y, --disable-warning-prompt Display warnings, but do not prompt user to continue
--test-decode=<arg> Test encode/decode mismatch
off, fatal, warn
Encoder Global Options:
--nv12 Input file is NV12
--yv12 Input file is YV12
--i420 Input file is I420 (default)
--i422 Input file is I422
--i444 Input file is I444
-u <arg>, --usage=<arg> Usage profile number to use (0: good, 1: rt, 2: allintra)
-t <arg>, --threads=<arg> Max number of threads to use
--profile=<arg> Bitstream profile number to use
-w <arg>, --width=<arg> Frame width
-h <arg>, --height=<arg> Frame height
--forced_max_frame_width=<arg>
Maximum frame width value to force
--forced_max_frame_height=<arg>
Maximum frame height value to force
--stereo-mode=<arg> Stereo 3D video format
mono, left-right, bottom-top, top-bottom, right-left
--timebase=<arg> Output timestamp precision (fractional seconds)
--fps=<arg> Stream frame rate (rate/scale)
--global-error-resilient=<arg>
Enable global error resiliency features
-b <arg>, --bit-depth=<arg> Bit depth for codec
8, 10, 12
--input-bit-depth=<arg> Bit depth of input
--lag-in-frames=<arg> Max number of frames to lag
--large-scale-tile=<arg> Large scale tile coding (0: off (default), 1: on (ivf output only))
--monochrome Monochrome video (no chroma planes)
--full-still-picture-hdr Use full header for still picture
--use-16bit-internal Force use of 16-bit pipeline
--annexb=<arg> Save as Annex-B
Rate Control Options:
--drop-frame=<arg> Temporal resampling threshold (buf %)
--resize-mode=<arg> Frame resize mode
--resize-denominator=<arg> Frame resize denominator
--resize-kf-denominator=<arg>
Frame resize keyframe denominator
--superres-mode=<arg> Frame super-resolution mode
--superres-denominator=<arg>
Frame super-resolution denominator
--superres-kf-denominator=<arg>
Frame super-resolution keyframe denominator
--superres-qthresh=<arg> Frame super-resolution qindex threshold
--superres-kf-qthresh=<arg> Frame super-resolution keyframe qindex threshold
--end-usage=<arg> Rate control mode
vbr, cbr, cq, q
--target-bitrate=<arg> Bitrate (kbps)
--min-q=<arg> Minimum (best) quantizer
--max-q=<arg> Maximum (worst) quantizer
--undershoot-pct=<arg> Datarate undershoot (min) target (%)
--overshoot-pct=<arg> Datarate overshoot (max) target (%)
--buf-sz=<arg> Client buffer size (ms)
--buf-initial-sz=<arg> Client initial buffer size (ms)
--buf-optimal-sz=<arg> Client optimal buffer size (ms)
--bias-pct=<arg> CBR/VBR bias (0=CBR, 100=VBR)
--minsection-pct=<arg> GOP min bitrate (% of target)
--maxsection-pct=<arg> GOP max bitrate (% of target)
Keyframe Placement Options:
--enable-fwd-kf=<arg> Enable forward reference keyframes
--kf-min-dist=<arg> Minimum keyframe interval (frames)
--kf-max-dist=<arg> Maximum keyframe interval (frames)
--disable-kf Disable keyframe placement
--sframe-dist=<arg> S-Frame interval (frames)
--sframe-mode=<arg> S-Frame insertion mode (1..2)
AV1 Specific Options:
--cpu-used=<arg> Speed setting (0..6 in good mode, 5..10 in realtime mode, 0..9 in all intra mode)
--auto-alt-ref=<arg> Enable automatic alt reference frames
--sharpness=<arg> Bias towards block sharpness in rate-distortion optimization of transform coefficients (0..7), default is 0
--static-thresh=<arg> Motion detection threshold
--row-mt=<arg> Enable row based multi-threading (0: off, 1: on (default))
--tile-columns=<arg> Number of tile columns to use, log2
--tile-rows=<arg> Number of tile rows to use, log2
--enable-tpl-model=<arg> RDO based on frame temporal dependency (0: off, 1: backward source based); required for deltaq mode
--enable-keyframe-filtering=<arg>
Apply temporal filtering on key frame (0: no filter, 1: filter without overlay (default), 2: filter with overlay - experimental, may break random access in players)
--arnr-maxframes=<arg> AltRef max frames (0..15)
--arnr-strength=<arg> AltRef filter strength (0..6)
--tune=<arg> Distortion metric tuned with
psnr, ssim, vmaf_with_preprocessing, vmaf_without_preprocessing, vmaf, vmaf_neg, butteraugli
--cq-level=<arg> Constant/Constrained Quality level
--max-intra-rate=<arg> Max I-frame bitrate (pct)
--max-inter-rate=<arg> Max P-frame bitrate (pct)
--gf-cbr-boost=<arg> Boost for Golden Frame in CBR mode (pct)
--lossless=<arg> Lossless mode (0: false (default), 1: true)
--enable-cdef=<arg> Enable the constrained directional enhancement filter (0: false, 1: true (default), 2: disable for non-reference frames)
--enable-restoration=<arg> Enable the loop restoration filter (0: false (default in realtime mode), 1: true (default in non-realtime mode))
--enable-rect-partitions=<arg>
Enable rectangular partitions (0: false, 1: true (default))
--enable-ab-partitions=<arg>
Enable ab partitions (0: false, 1: true (default))
--enable-1to4-partitions=<arg>
Enable 1:4 and 4:1 partitions (0: false, 1: true (default))
--min-partition-size=<arg> Set min partition size (4:4x4, 8:8x8, 16:16x16, 32:32x32, 64:64x64, 128:128x128); with 4k+ resolutions or higher speed settings, min partition size will have a minimum of 8
--max-partition-size=<arg> Set max partition size (4:4x4, 8:8x8, 16:16x16, 32:32x32, 64:64x64, 128:128x128) --enable-dual-filter=<arg> Enable dual filter (0: false, 1: true (default))
--enable-chroma-deltaq=<arg>
Enable chroma delta quant (0: false (default), 1: true)
--enable-intra-edge-filter=<arg>
Enable intra edge filtering (0: false, 1: true (default))
--enable-order-hint=<arg> Enable order hint (0: false, 1: true (default))
--enable-tx64=<arg> Enable 64-pt transform (0: false, 1: true (default))
--enable-flip-idtx=<arg> Enable extended transform type (0: false, 1: true (default)) including FLIPADST_DCT, DCT_FLIPADST, FLIPADST_FLIPADST, ADST_FLIPADST, FLIPADST_ADST, IDTX, V_DCT, H_DCT, V_ADST, H_ADST, V_FLIPADST, H_FLIPADST
--enable-rect-tx=<arg> Enable rectangular transform (0: false, 1: true (default))
--enable-dist-wtd-comp=<arg>
Enable distance-weighted compound (0: false, 1: true (default))
--enable-masked-comp=<arg> Enable masked (wedge/diff-wtd) compound (0: false, 1: true (default))
--enable-onesided-comp=<arg>
Enable one sided compound (0: false, 1: true (default))
--enable-interintra-comp=<arg>
Enable interintra compound (0: false, 1: true (default))
--enable-smooth-interintra=<arg>
Enable smooth interintra mode (0: false, 1: true (default))
--enable-diff-wtd-comp=<arg>
Enable difference-weighted compound (0: false, 1: true (default))
--enable-interinter-wedge=<arg>
Enable interinter wedge compound (0: false, 1: true (default))
--enable-interintra-wedge=<arg>
Enable interintra wedge compound (0: false, 1: true (default))
--enable-global-motion=<arg>
Enable global motion (0: false, 1: true (default))
--enable-warped-motion=<arg>
Enable local warped motion (0: false, 1: true (default))
--enable-filter-intra=<arg> Enable filter intra prediction mode (0: false, 1: true (default))
--enable-smooth-intra=<arg> Enable smooth intra prediction modes (0: false, 1: true (default))
--enable-paeth-intra=<arg> Enable Paeth intra prediction mode (0: false, 1: true (default))
--enable-cfl-intra=<arg> Enable chroma from luma intra prediction mode (0: false, 1: true (default))
--enable-diagonal-intra=<arg>
Enable diagonal (D45 to D203) intra prediction modes, which are a subset of directional modes; has no effect if enable-directional-intra is 0 (0: false, 1: true (default))
--force-video-mode=<arg> Force video mode (0: false, 1: true (default))
--enable-obmc=<arg> Enable OBMC (0: false, 1: true (default))
--enable-overlay=<arg> Enable coding overlay frames (0: false, 1: true (default))
--enable-palette=<arg> Enable palette prediction mode (0: false, 1: true (default))
--enable-intrabc=<arg> Enable intra block copy prediction mode (0: false, 1: true (default))
--enable-angle-delta=<arg> Enable intra angle delta (0: false, 1: true (default))
--disable-trellis-quant=<arg>
Disable trellis optimization of quantized coefficients (0: false 1: true 2: true for rd search 3: true for estimate yrd search (default))
--enable-qm=<arg> Enable quantisation matrices (0: false (default), 1: true)
--qm-min=<arg> Min quant matrix flatness (0..15), default is 8
--qm-max=<arg> Max quant matrix flatness (0..15), default is 15
--reduced-tx-type-set=<arg> Use reduced set of transform types
--use-intra-dct-only=<arg> Use DCT only for INTRA modes
--use-inter-dct-only=<arg> Use DCT only for INTER modes
--use-intra-default-tx-only=<arg>
Use Default-transform only for INTRA modes
--quant-b-adapt=<arg> Use adaptive quantize_b
--coeff-cost-upd-freq=<arg> Update freq for coeff costs. 0: SB, 1: SB Row per Tile, 2: Tile, 3: Off
--mode-cost-upd-freq=<arg> Update freq for mode costs. 0: SB, 1: SB Row per Tile, 2: Tile, 3: Off
--mv-cost-upd-freq=<arg> Update freq for mv costs. 0: SB, 1: SB Row per Tile, 2: Tile, 3: Off
--frame-parallel=<arg> Enable frame parallel decodability features (0: false (default), 1: true)
--error-resilient=<arg> Enable error resilient features (0: false (default), 1: true)
--aq-mode=<arg> Adaptive quantization mode (0: off (default), 1: variance 2: complexity, 3: cyclic refresh)
--deltaq-mode=<arg> Delta qindex mode (0: off, 1: deltaq objective (default), 2: deltaq placeholder, 3: key frame visual quality, 4: user rating based visual quality optimization); requires --enable-tpl-model=1
--deltaq-strength=<arg> Deltaq strength for --deltaq-mode=4 (%)
--delta-lf-mode=<arg> Enable delta-lf-mode (0: off (default), 1: on)
--frame-boost=<arg> Enable frame periodic boost (0: off (default), 1: on)
--noise-sensitivity=<arg> Noise sensitivity (frames to blur)
--tune-content=<arg> Tune content type
default, screen, film
--cdf-update-mode=<arg> CDF update mode for entropy coding (0: no CDF update, 1: update CDF on all frames (default), 2: selectively update CDF on some frames)
--color-primaries=<arg> Color primaries (CICP) of input content:
bt709, unspecified, bt601, bt470m, bt470bg, smpte240, film, bt2020, xyz, smpte431, smpte432, ebu3213
--transfer-characteristics=<arg>
Transfer characteristics (CICP) of input content:
unspecified, bt709, bt470m, bt470bg, bt601, smpte240, lin, log100, log100sq10, iec61966, bt1361, srgb, bt2020-10bit, bt2020-12bit, smpte2084, hlg, smpte428
--matrix-coefficients=<arg> Matrix coefficients (CICP) of input content:
identity, bt709, unspecified, fcc73, bt470bg, bt601, smpte240, ycgco, bt2020ncl, bt2020cl, smpte2085, chromncl, chromcl, ictcp
--chroma-sample-position=<arg>
The chroma sample position when chroma 4:2:0 is signaled:
unknown, vertical, colocated
--min-gf-interval=<arg> Min gf/arf frame interval (default 0, indicating in-built behavior)
--max-gf-interval=<arg> Max gf/arf frame interval (default 0, indicating in-built behavior)
--gf-min-pyr-height=<arg> Min height for GF group pyramid structure (0 (default) to 5)
--gf-max-pyr-height=<arg> Maximum height for GF group pyramid structure (0 to 5 (default))
--sb-size=<arg> Superblock size to use
dynamic, 64, 128
--num-tile-groups=<arg> Maximum number of tile groups, default is 1
--mtu-size=<arg> MTU size for a tile group, default is 0 (no MTU targeting), overrides maximum number of tile groups
--timing-info=<arg> Signal timing info in the bitstream (model only works for no hidden frames, no super-res yet):
unspecified, constant, model
--film-grain-test=<arg> Film grain test vectors (0: none (default), 1: test-1 2: test-2, ... 16: test-16)
--film-grain-table=<arg> Path to file containing film grain parameters
--denoise-noise-level=<arg> Amount of noise (from 0 = don't denoise, to 50)
--denoise-block-size=<arg> Denoise block size (default = 32)
--enable-dnl-denoising=<arg>
Apply denoising to the frame being encoded when denoise-noise-level is enabled (0: false, 1: true (default))
--max-reference-frames=<arg>
Maximum number of reference frames allowed per frame (3 to 7 (default))
--reduced-reference-set=<arg>
Use reduced set of single and compound references (0: off (default), 1: on)
--enable-ref-frame-mvs=<arg>
Enable temporal mv prediction (default is 1)
--target-seq-level-idx=<arg>
Target sequence level index. Possible values are in the form of "ABxy". AB: Operating point (OP) index, xy: Target level index for the OP. E.g. "0" means target level index 0 (2.0) for the 0th OP, "1019" means target level index 19 (6.3) for the 10th OP.
--set-tier-mask=<arg> Set bit mask to specify which tier each of the 32 possible operating points conforms to. Bit value 0 (default): Main Tier, 1: High Tier.
--min-cr=<arg> Set minimum compression ratio. Take integer values. Default is 0. If non-zero, encoder will try to keep the compression ratio of each frame to be higher than the given value divided by 100.
--vbr-corpus-complexity-lap=<arg>
Set average corpus complexity per mb for single pass VBR using lap. (0..10000), default is 0
--input-chroma-subsampling-x=<arg>
Chroma subsampling x value
--input-chroma-subsampling-y=<arg>
Chroma subsampling y value
--dv-cost-upd-freq=<arg> Update freq for dv costs. 0: SB, 1: SB Row per Tile, 2: Tile, 3: Off
--partition-info-path=<arg> Partition information read and write path
--enable-directional-intra=<arg>
Enable directional intra prediction modes (0: false, 1: true (default))
--enable-tx-size-search=<arg>
Enable transform size search to find the best size for each block. If false, transforms always have the largest possible size (0: false, 1: true (default))
--loopfilter-control=<arg> Control loop filtering (0: Loopfilter disabled for all frames, 1: Enable loopfilter for all frames (default), 2: Disable loopfilter for non-reference frames, 3: Disable loopfilter for frames with low motion)
--auto-intra-tools-off=<arg>
Automatically turn off several intra coding tools for allintra mode; only in effect if --deltaq-mode=3
-p <arg>, --passes=<arg> Number of passes (1/2/3)
--two-pass-output=<arg> The output file for the first two passes for three-pass encoding
-spf <arg>, --second-pass-log=<arg> Log file from second pass
--fwd-kf-dist=<arg> Set distance between forward keyframes. A value of -1 (default) means no repetitive forward keyframes.
--strict-level-conformance=<arg>
When set to 1, exit the encoder when it fails to encode to a given target level
--dist-metric=<arg> Distortion metric to use for in-block optimization
psnr, qm-psnr
Stream timebase (--timebase):
The desired precision of timestamps in the output, expressed
in fractional seconds. Default is 1/1000.