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GIT: [AOM](https://aomedia.googlesource.com/aom/)
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## Table of Contents
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- [Important command line options](#important-command-line-options)
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- [Example settings and explanation](#example-settings-and-explanation)
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### Important command line options
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| Command Line | Description |
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| -------------| -------------|
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| --help | Show usage options and exit |
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@ -38,7 +40,13 @@ GIT: [AOM](https://aomedia.googlesource.com/aom/)
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### Example settings and explanation
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##### Constant quality:
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#### Change encoding bit depth
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`-b 8` `-b 10` `-b 12`
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This command changes output bit depth
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##### Constant quality
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` --end-usage=q --cq-level=30 --cpu-used=4 --threads=64 `
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It is recommended to the --cq-level in range 20-40 depending on your source.
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##### Target Bitrate:
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##### Target Bitrate
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`` --end-usage=vbr --target-bitrate=1000 --cpu-used=4 --threads=64 ``
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To get good efficiency with VBR, it is strongly recommended to use aomenc in 2-pass mode(which is the default in av1an).
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##### Tiles(tile columns and rows)
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` ... --tile-columns=2 --tile-rows=1 ...`
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`... --tile-columns=2 --tile-rows=1 ...`
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If tiles required to improve playback on old devices or high framerates, set --tile-columns=2 and --tile-rows=1 at 1080p. For higher resolution/higher framerate encoding, set it to --tile-columns=3 and --tile-rows=2.
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#### CPU preset:
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#### CPU preset
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` ... --cpu-used=6 ... `
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--cpu-used=6 requires ~30% less bitrate than x265 for same quality, gains by preset increments are relatively smaller than x264/x265.
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#### Bit-depth:
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#### Bit-depth
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` ... --bit-depth=10 ... `
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It is recommended to set it to 10-bit even for 8-bit content for higher efficiency (due to better compression efficiency) and less banding.
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#### Lag-in-frames
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` ... --lag-in-frames=35 ... `
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More is better, up to a limit of 35 (default is 19).
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#### Content tune
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` ... --tune-content=default ...`
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`... --tune-content=default ...`
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default: tuned for most content. screen: tuned for screen recordings
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#### Flags used for most native 10-bit HDR content
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` ... --color-primaries=bt2020 --transfer-characteristics=smpte2084 --matrix-coefficients=bt2020ncl ... `
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#### Example command line for good quality
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` --end-usage=q --cq-level=22 --cpu-used=4 --threads=8 --bit-depth=10 --lag-in-frames=35 --enable-fwd-kf=1 --enable-qm=1 --enable-chroma-deltaq=1 --quant-b-adapt=1 --mv-cost-upd-freq=2 `
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#### Example command line for fast speed
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` --end-usage=q --cq-level=22 --cpu-used=6 --threads=64 --tile-columns=2 --tile-rows=1 --bit-depth=8 `
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` --end-usage=q --cq-level=22 --cpu-used=6 --threads=64 --tile-columns=2 --tile-rows=1 --bit-depth=8 `
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# rav1e
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# rav1e
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GIT: [rav1e](https://github.com/xiph/rav1e)
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## Table of Contents
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- [Important command line options](#important-command-line-options)
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- [Example settings and explanation](#example-settings-and-explanation)
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### Important command line options
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| Command Line | Description |
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| -------------| -------------|
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| --quantizer | Quantizer (0-255), smaller values are higher quality (default: 100)|
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| -s, --speed | Speed level 0-10 (0 is best quality, 10 is fastest) (default: 6)|
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| -s, --speed | Speed level 0-10 (0 is best quality, 10 is fastest) (default: 6)|
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@ -1 +1,3 @@
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# Av1an documentation
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