64 lines
903 B
Markdown
64 lines
903 B
Markdown
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# Notes
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`ffmpeg -i almatrailer2016a.mp4 -map 0:v:0`
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`ffmpeg -i eso1902a.mp4 -map 0:v:0`
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`ffmpeg -i Sparks_in_Blender.webm -map 0:v:0`
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```
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$crf: CRF, see encoder documentation for valid values
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$preset: Encoder preset, see documentation for values
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$keyint: Keyframe interval. Set to (fps * 10) for consistency
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```
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## H.264
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`-c:v libx264 -crf $crf -preset $preset -g $keyint`
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CRF: 0–51
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Presets:
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```
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ultrafast
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superfast
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veryfast
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faster
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fast
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medium
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slow
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slower
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veryslow
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placebo
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```
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## H.265
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`-c:v libx265 -crf $crf -preset $preset -g $keyint`
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CRF: 0-51
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Presets:
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```
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ultrafast
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superfast
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veryfast
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faster
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fast
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medium
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slow
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slower
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veryslow
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placebo
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```
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## AV1
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### libaom
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`-c:v libaom-av1 -crf $crf -b:v 0 -cpu-used $preset -row-mt 1 -g $keyint -tiles 2x2`
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CRF: 0-63
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Presets: 0-6
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### SVT-AV1
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`-c:v libsvtav1 -crf $crf -preset $preset -g $keyint`
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CRF: 0-63
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Presets: 0-12
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